WO2018121084A1

WO2018121084A1 - Positioning method, device and system

Info

Publication number: WO2018121084A1
Application number: PCT/CN2017/109753
Authority: WO
Inventors: 谭平; 程远
Original assignee: 华为技术有限公司
Priority date: 2016-12-27
Filing date: 2017-11-07
Publication date: 2018-07-05
Also published as: CN108260080B; CN108260080A

Abstract

Provided is a positioning method applied to a positioning system composed of a positioning tag and a positioning base station group. The positioning base station group comprises at least two positioning base stations. The method comprises: a positioning tag regularly sending a positioning tag broadcast message to a positioning base station group; the positioning tag determining, according to a positioning tag broadcast response message returned from the positioning base station group, whether the positioning tag has left a positioning area of the positioning base station group; and if the positioning tag determines that the positioning tag has left the positioning area of the positioning base station group, the positioning tag shutting down positioning service functions on itself apart from a departure determination function. Thus, the power consumption of a positioning tag can be saved, so that a power source in the positioning tag can continue serving for a longer period of time.

Description

Method, device and system for positioning

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for positioning.

Background technique

An indoor positioning system or a specific scene positioning system usually consists of a positioning tag, a positioning base station, and a positioning server. The positioning tag periodically sends a Bluetooth broadcast message to the positioning base station. After receiving the Bluetooth broadcast message of the locating tag, the locating base station extracts the data and reports the data to the locating server (for example, a terminal device such as a PC, a mobile phone, an IPad, a notebook, etc.) through a network (for example, Wifi, ZigBee, 4G, etc.) After receiving the data sent by the positioning base station, the positioning server obtains the positioning label location information through calculation, and performs processing of various positioning services according to the specific application, for example, and displays it in the designated map. During the research, the inventor found that the existing positioning tags continue to work regardless of whether they leave the location area, and the positioning tags continue to consume power, which cannot effectively save power.

Summary of the invention

The embodiment of the present application provides a positioning method, device, system, and storage medium, which can save power consumption of a positioning device or a positioning tag. The embodiment of the present application further provides a positioning base station and a positioning system, which can save power consumption of the positioning device or the positioning tag and the positioning base station.

In one aspect, the embodiment of the present invention provides a positioning method applied to a positioning system consisting of a positioning tag and a positioning base station group, where the positioning base station group includes at least two positioning base stations, and the method includes: positioning the label periodically The positioning base station group sends a positioning label broadcast message, and the positioning label determines, according to the positioning label broadcast response message returned from the positioning base station group, whether it leaves the positioning area of the positioning base station group, if the positioning label is determined If it has left the location area of the positioning base station group, the positioning tag closes its own positioning service function except the departure determination function.

By adding the departure determination function of the positioning label, and after determining that the positioning label leaves the positioning area of the positioning base station group, the positioning service function except the departure determination is disabled on the positioning label, thereby saving the positioning label. The power consumption enables the power supply in the positioning tag to continue to serve for a longer period of time.

In a possible design, determining whether the positioning label leaves the positioning area of the positioning base station group includes: the positioning label listening to the positioning base station on a same channel as the positioning label broadcast message. a positioning label broadcast response message returned by the positioning base station in the group; if the positioning label does not receive the positioning label broadcast response message returned by the at least one positioning base station in the positioning base station group on the same channel, Determining that the positioning tag has left the location area of the positioning base station group.

In a possible design, the determining, by the positioning label, whether the positioning label leaves the positioning area of the positioning base station group comprises: the positioning label is on a channel that is the same as the broadcasting message that sends the positioning label broadcast message. Locating a positioning label broadcast response message returned by the positioning base station in the positioning base station group; the positioning label receiving, on the same channel, a positioning label broadcast response message returned by at least one positioning base station in the positioning base station group, The positioning tag broadcast response message includes a Bluetooth address of the at least one positioning base station; the positioning tag determines whether the Bluetooth address of the at least one positioning base station has regularity, and if there is no regularity, the count value is incremented by one, And when the count value does not reach the set threshold, the foregoing steps are continued; when the count value reaches the set threshold, it is determined that the positioning tag has left the positioning area of the positioning base station group.

Determining whether the response is returned by the base station in the base station group by determining the regularity of the Bluetooth address returned by the positioning base station The message is used to prevent the error of the positioning label broadcast response message of the non-base station Bluetooth response, thereby improving the quasi-determination of the positioning label positioning judgment; in addition, by setting a certain count value as a judgment reference, thereby avoiding frequent The result of the presence of the off-site is displayed, and the positioning service function on the positioning tag is frequently turned off and on according to the positioning judgment result.

In a possible design, the method further includes: if the positioning tag determines that the Bluetooth address of the at least one positioning base station has regularity, the positioning tag determines that it is in a positioning area of the positioning base station group, Clearing the count value to zero, and turning off the positioning service function on the positioning label.

In a possible design, the positioning tag determines whether the Bluetooth address of the at least one positioning base station has regularity in one of the following ways: the Bluetooth address values of the plurality of positioning base stations in the positioning area are the same; the positioning The Bluetooth address values of the plurality of positioning base stations in the area are incremented according to a specified step size; and the Bluetooth address values of the plurality of positioning base stations in the positioning area are calculated according to a specific algorithm formula.

In a possible design, the positioning service function on the positioning label other than the departure determination function includes at least one of the following functions: a collection function of positioning data, a calculation function of positioning data, and a transmission function of positioning data.

In a possible design, the positioning label broadcast message and the positioning label broadcast response message adopt a special departure protocol, and the special departure protocol is modified by scanning a broadcastable message protocol and a linkable undirected broadcast protocol. Or not linked to the broadcast protocol.

The positioning tag broadcast message and the positioning tag broadcast response message are more flexible and save power by using the special departure protocol to determine the positioning according to the existing Bluetooth broadcast message protocol. Effect. Because the transmission phase of the existing Bluetooth broadcast message protocol packet has certain restrictions (for example, it needs to be bound to the transmission positioning data), and the transmission and reception frequency is high, thereby increasing the power consumption of the positioning base station, it is better to adopt the special separation. Field protocol packets are more flexible (not limited to being sent with positioning data), and because of the use of special off-mission protocol packets, the transmission frequency is more flexible and usually lower than the frequency of data sent by existing protocols. Save power consumption of the positioning base station.

In addition, because the existing Bluetooth broadcast message protocol has the advantages of easy implementation, high security, good real-time performance, high efficiency, etc., the existing Bluetooth broadcast message protocol (such as non-linkable broadcast protocol, linkable undirected broadcast) can be modified. The special departure protocol obtained by the protocol, the linkable directed broadcast protocol, or the scanable broadcast protocol can maintain the existing Bluetooth broadcast message protocol with the advantages of easy implementation, high security, good real-time performance, high efficiency, and the like. On the basis of this, and because the Bluetooth broadcast message protocol interacts on both sides of the broadcast channel, it has the characteristics of low power consumption.

In a possible design, the positioning tag broadcast message in the special departure protocol obtained by modifying the scannable broadcast message protocol, the linkable undirected broadcast protocol or the non-linkable broadcast protocol does not include the Data field.

The communication field used for the departure determination between the positioning tag and the positioning base station is deleted by deleting the Data field in the positioning tag broadcast message sent according to the existing scannable broadcast message protocol, the linkable undirected broadcast protocol, or the non-linkable broadcast protocol. More flexible, less overhead, and more power-saving effects.

On the other hand, an embodiment of the present invention provides a positioning method applied to a positioning system consisting of a positioning tag and a positioning base station group, where the positioning base station group includes at least two positioning base stations, and the method includes: in the base station group The locating base station receives the first locating label broadcast packet that is periodically sent by the locating label, the first locating label broadcast packet carrying the tag information and the address information of the locating tag, the tag information indicating the first locating tag The broadcast message is a special departure protocol message; the positioning base station records address information of the positioning tag; the positioning base station determines, according to the tag information, that the positioning tag is located in a positioning area of the base station, and The positioning tag returns a positioning tag broadcast response message.

Compared with the prior art, the positioning base station performs the judgment according to the existing Bluetooth broadcast protocol packet, and the positioning base station performs the positioning judgment according to the special departure protocol packet in the special departure protocol, which can make the departure base station judgment of the positioning base station more flexible. (not limited to sending with positioning data), and because of the use of special departure protocol messages, the transmission frequency is more flexible and usually low The frequency at which data is transmitted by an existing protocol, thereby saving power consumption of the positioning base station. Because the existing existing Bluetooth broadcast protocol messages (such as unlinkable broadcast protocols, linkable undirected broadcast protocols, linkable directed broadcast protocols, or scannable broadcast protocols) have certain restrictions on the transmission phase (eg, both need It is bound to the transmission positioning data) and the transmission and reception frequency is high, thereby increasing the power consumption of the positioning base station for positioning determination.

In a possible design, the method further includes: if the positioning base station does not receive the second positioning tag broadcast message carrying the address information of the positioning tag within a set time, the positioning base station Determining that the positioning tag leaves the positioning area of the positioning base station.

In a possible design, the method further includes: if the positioning base station receives the second positioning tag broadcast message carrying the address information of the positioning tag within a set time, determining the second Whether the tag information in the tag broadcast message is equal to the set value, and the tag information in the second tag broadcast message is used to indicate whether the second tag broadcast message is a special leave protocol message; If the tag information in the broadcast packet of the second locating tag is equal to the set value, determining that the locating tag is located in the locating area of the locating base station, and returning a locating tag broadcast response message to the locating tag; If the tag information in the second positioning tag broadcast message is not equal to the set value, the counter value is incremented by 1, and when the count value reaches the set threshold, determining that the positioning tag leaves the positioning base station Location area.

By setting a certain count value as a judgment reference, the occurrence of the departure presence result is frequently avoided, and the positioning service function on the positioning tag is frequently turned off and on according to the positioning determination result. In addition, by determining whether the marking information in the second positioning label broadcast message sent by the positioning label is equal to the set value, the problem of judging the occurrence of the Bluetooth message of the non-positioning label can be prevented, thereby improving the accuracy of the positioning label positioning judgment. And determining the positioning judgment based on the non-specific departure protocol packet of the positioning label, so that the positioning judgment is performed only according to the special departure protocol packet sent by the positioning label, thereby saving the power consumption of the positioning base station positioning judgment.

In a possible design, the positioning label broadcast message and the special departure protocol adopted by the positioning label broadcast response message are modified by a scannable broadcast message protocol, a linkable undirected broadcast protocol, or a non-linkable broadcast protocol. get.

The positioning label broadcast message and the positioning label broadcast response message are more flexible and more economical to save by using the special departure protocol to determine the positioning label according to the existing Bluetooth broadcast message protocol. The effect of consumption. Because the transmission phase of the existing Bluetooth broadcast message protocol packet has certain restrictions (for example, it needs to be bound to the transmission positioning data), and the transmission and reception frequency is high, thereby increasing the power consumption of the positioning base station, it is better to adopt the special separation. Field protocol packets are more flexible (not limited to being sent with positioning data), and because of the use of special off-mission protocol packets, the transmission frequency is more flexible and usually lower than the frequency of data sent by existing protocols. Save power consumption of the positioning base station.

In a further aspect, the embodiment of the present application provides a positioning device, which is applied to a positioning device and a positioning system comprising a plurality of positioning base stations, and the positioning device comprises:

a transceiver unit, configured to periodically send a positioning device broadcast message to the positioning base station group;

a processing unit, configured to determine, by using the positioning label broadcast response message returned by the positioning base station group, whether the positioning device leaves a positioning area of the positioning base station group, and the positioning device leaves the positioning area of the positioning base station group In this case, the positioning service function except the departure determination function on the positioning device is turned off.

By adding the departure determination or positioning judgment function of the positioning label, and after determining that the positioning label leaves the positioning area of the positioning base station group, the positioning service function except the departure determination is closed on the positioning label, thereby The power consumption of the positioning tag is saved, so that the power supply in the positioning tag can continue to serve for a longer time.

In a possible design, the determining, by the processing unit, whether to leave the positioning area of the positioning base station group, specifically: the processing unit listening to the positioning base station group on a same channel as the positioning label broadcast message a positioning tag broadcast response message returned by the positioning base station; if the processing unit does not receive the positioning tag broadcast response message returned by the at least one positioning base station in the positioning base station group on the same channel, Determining that the positioning device has left the positioning area of the positioning base station group.

In a possible design, the determining, by the processing unit, whether to leave the positioning area of the positioning base station group, specifically: the processing unit listening to the positioning base station group on a same channel as the positioning label broadcast message a positioning label broadcast response message returned by the positioning base station; the processing unit receives, on the same channel, a positioning label broadcast response message returned by at least one positioning base station in the positioning base station group, the positioning label The broadcast response message includes a Bluetooth address of the at least one positioning base station; the processing unit determines whether the Bluetooth address of the at least one positioning base station has regularity, and if not, increases the count value by one, and When the count value does not reach the set threshold, the foregoing steps are continued; when the count value reaches the set threshold, it is determined that the positioning device has left the positioning area of the positioning base station group.

The judging error of the Bluetooth address returned by the locating base station is whether it is a response message returned by the base station in the base station group, so as to prevent the erroneous error problem caused by the positioning tag broadcast response message of the non-base station Bluetooth response, thereby improving the problem The quasi-determination of the positioning label positioning judgment; in addition, by setting a certain count value as a judgment reference, thereby avoiding frequent occurrence of the departure presence result, frequently performing the closing and opening of the positioning service function on the positioning label according to the positioning determination result. .

In a possible design, the processing unit is further configured to: if the positioning tag determines that the Bluetooth address of the at least one positioning base station has regularity, the positioning tag determines that it is in a positioning area of the positioning base station group Clearing the count value to zero, and turning on the positioning service function that is closed on the positioning label.

In a possible design, the processing unit determines whether the Bluetooth address of the at least one positioning base station has regularity in one of the following ways: the Bluetooth address values of the plurality of positioning base stations in the positioning area are the same; the positioning The Bluetooth address values of the plurality of positioning base stations in the area are incremented according to a specified step size; and the Bluetooth address values of the plurality of positioning base stations in the positioning area are calculated according to a specific algorithm formula.

The positioning label broadcast message and the positioning label broadcast response message are more flexible and more economical to save by using the special departure protocol to determine the positioning label according to the existing Bluetooth broadcast message protocol. The effect of consumption. Because the transmission phase of the existing Bluetooth broadcast message protocol packet has certain restrictions (for example, it needs to be bound to the transmission positioning data), and the transmission and reception frequency is high, thereby increasing the power consumption of the positioning base station, it is better to adopt the special separation. Field agreement The text is more flexible (not limited to being sent with the positioning data), and because of the special departure protocol message, the transmission frequency is more flexible and usually lower than the frequency of the data transmitted by the existing protocol, so that the positioning base station can be saved more. Power consumption.

In a further aspect, the embodiment of the present application provides a positioning base station, where the positioning device is used in a positioning system composed of at least two positioning base stations, and the positioning base station is any one of the positioning base station groups. a locating base station, the base station includes: a transceiver unit, configured to receive a first locating label broadcast message periodically sent by the locating device, where the first locating label broadcast packet carries tag information and an address of the locating device The information indicating that the first positioning label broadcast message is a special departure protocol message; the processing unit is configured to record, by the positioning base station, address information of the positioning device, where the positioning base station is according to the tag The information determines that the positioning device is located in a positioning area of the base station, and instructs the transceiver unit to return a positioning label broadcast response message to the positioning device.

Compared with the prior art, the positioning base station performs the judgment according to the existing Bluetooth broadcast protocol packet, and the positioning base station performs the positioning judgment according to the special departure protocol packet in the special departure protocol, which can make the departure base station judgment of the positioning base station more flexible. (Not limited to being sent with the positioning data), and because the special departure protocol message is adopted, the transmission frequency is more flexible and generally lower than the frequency of the data transmitted by the existing protocol, thereby saving the power consumption of the positioning base station. Because the existing existing Bluetooth broadcast protocol messages (such as unlinkable broadcast protocols, linkable undirected broadcast protocols, linkable directed broadcast protocols, or scannable broadcast protocols) have certain restrictions on the transmission phase (eg, both need It is bound to the transmission positioning data) and the transmission and reception frequency is high, thereby increasing the power consumption of the positioning base station for positioning determination.

In a possible design, the processing unit is further configured to determine, if the processing unit does not receive the second positioning tag broadcast message carrying the address information of the positioning device within a set time, The positioning device leaves the positioning area of the positioning base station.

In a possible design, the processing unit is further configured to: if the processing unit receives the second positioning tag broadcast message carrying the address information of the positioning device within a set time, determining the Whether the marking information in the second positioning label broadcast message is equal to the set value, and the marking information in the second positioning label broadcast message is used to indicate whether the second positioning label broadcast message is a special departure protocol message. If the tag information in the second positioning tag broadcast message is equal to the set value, determining that the positioning device is in the positioning area of the positioning base station, and returning a positioning tag broadcast response message to the positioning device; If the tag information in the second positioning tag broadcast message is not equal to the set value, the count value is incremented by 1, and when the count value reaches the set threshold, determining that the positioning device leaves the Locate the location area of the base station.

By setting a certain count value as a judgment reference, the occurrence of the departure presence result is frequently avoided, and the positioning service function on the positioning tag is frequently turned off and on according to the positioning determination result. In addition, by determining whether the marking information in the second positioning label broadcast message sent by the positioning label is equal to the set value, the problem of judging the occurrence of the Bluetooth message of the non-positioning label can be prevented, thereby improving the accuracy of the positioning label positioning judgment. And can also prevent The non-specific departure protocol packet of the locating label is determined by the positioning, so that the positioning judgment is performed only according to the special departure protocol packet sent by the locating label, thereby saving the power consumption of the positioning base station positioning judgment.

Moreover, by deleting the Data field in the positioning label broadcast message sent according to the existing scannable broadcast message protocol, the linkable undirected broadcast protocol, or the non-linkable broadcast protocol, the positioning tag and the positioning base station are used for the departure determination. Communication is more flexible, and the overhead is small, which saves power consumption.

In a further aspect, the embodiment of the present application provides a positioning device, which is applied to a positioning device and a positioning system composed of at least two positioning base stations, and the positioning device includes: a transceiver, configured to periodically The positioning base station group sends a positioning label broadcast message; the processor is configured to determine, by using the positioning label broadcast response message returned by the at least one positioning base station in the positioning base station group, whether the positioning device leaves the positioning base station group An area, and in a case where the positioning device leaves the positioning area of the positioning base station group, the positioning service function except the departure determining function on the positioning device is turned off.

In a possible design, the determining, by the processor, whether to leave the positioning area of the positioning base station group includes: the processor listening to the positioning base station group on a same channel as the positioning label broadcast message. a positioning tag broadcast response message returned by the positioning base station; if the processor does not receive the positioning tag broadcast response message returned by the at least one positioning base station in the positioning base station group on the same channel, Determining that the positioning device has left the positioning area of the positioning base station group.

In a possible design, the determining, by the processor, whether to leave the positioning area of the positioning base station group includes: the processor listening to the positioning base station group on a same channel as the positioning label broadcast message. a positioning label broadcast response message returned by the positioning base station; the processor receiving, on the same channel, a positioning label broadcast response message returned by at least one positioning base station in the positioning base station group, the positioning label The broadcast response message includes a Bluetooth address of the at least one positioning base station; the processor determines whether the Bluetooth address of the at least one positioning base station has regularity, and if there is no regularity, increments the count value by one, and When the count value does not reach the set threshold, the foregoing steps are continued; when the count value reaches the set threshold, it is determined that the positioning device has left the positioning base station group Bit area.

In a possible design, the processor is further configured to: if the positioning tag determines that the Bluetooth address of the at least one positioning base station has regularity, the positioning tag determines that it is in a positioning area of the positioning base station group Clearing the count value to zero, and turning on the positioning service function that is closed on the positioning label.

In a possible design, the processor determines whether the Bluetooth address of the at least one positioning base station has regularity in one of the following ways: the Bluetooth address values of the plurality of positioning base stations in the positioning area are the same; the positioning The Bluetooth address values of the plurality of positioning base stations in the area are incremented according to a specified step size; and the Bluetooth address values of the plurality of positioning base stations in the positioning area are calculated according to a specific algorithm formula.

In a further aspect, the embodiment of the present application provides a positioning base station, where the positioning device is used in a positioning system composed of at least two positioning base stations, and the positioning base station is any one of the positioning base station groups. a locating base station, the base station includes: a transceiver, configured to receive a first locating label broadcast message periodically sent by the locating device, where the first locating label broadcast packet carries tag information and an address of the locating device The information indicating that the first positioning label broadcast message is a special departure protocol message, and the processor is configured to record, by the positioning base station, address information of the positioning device, where the positioning base station is according to the identifier The information determines that the positioning device is located in a positioning area of the base station, and instructs the transceiver to return a positioning label broadcast response message to the positioning device.

In a possible design, the processor is further configured to determine, if the transceiver does not receive the second positioning tag broadcast message carrying the address information of the positioning device within a set time, The positioning device leaves the positioning area of the positioning base station.

In a possible design, the processing unit is further configured to: if the transceiver receives a second positioning tag broadcast message carrying the address information of the positioning device within a set time, determining that the Whether the marking information in the second positioning label broadcast message is equal to the set value, and the marking information in the second positioning label broadcast message is used to indicate whether the second positioning label broadcast message is a special departure protocol message. If the tag information in the second positioning tag broadcast message is equal to the set value, determining that the positioning device is in the positioning area of the positioning base station, and returning a positioning tag broadcast response message to the positioning device; If the tag information in the second positioning tag broadcast message is not equal to the set value, the count value is incremented by 1, and when the count value reaches the set threshold, determining that the positioning device leaves the Locate the location area of the base station.

Moreover, by deleting the Data field in the positioning label broadcast message sent according to the existing scannable broadcast message protocol, the linkable undirected broadcast protocol, or the non-linkable broadcast protocol, the positioning tag and the positioning base station are used for the departure determination. Communication More flexible, less overhead, and more power-saving effects.

In a further aspect, the embodiment of the present application provides a positioning system, which includes various possible design manners in the positioning device and various possible design manners in the positioning base station.

In still another aspect, an embodiment of the present application provides a computer readable storage medium, where the program storage code stores program code for indicating a method in performing various possible design manners in the positioning device.

In still another aspect, an embodiment of the present application provides a computer readable storage medium, where the program storage code stores program code for indicating a method in performing various possible design manners in the positioning base station.

DRAWINGS

FIG. 1 is a schematic structural diagram of a positioning system networking structure according to an embodiment of the present disclosure;

2 is a schematic diagram of a presence status of a positioning tag according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a positioning label positioning determination process according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart of determining a positioning of a positioning base station according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a positioning and determining process of a positioning system according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a manner of obtaining a special departure protocol according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a manner of obtaining another special departure protocol according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of obtaining a special departure protocol according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of a positioning apparatus according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a positioning base station according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a positioning apparatus according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a positioning system according to an embodiment of the present invention.

detailed description

The present invention will be further described in detail with reference to the accompanying drawings, in which FIG. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The network architecture and the service scenario described in the embodiments of the present invention are used to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention. The technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

FIG. 1 is a schematic structural diagram of a positioning system according to an embodiment of the present invention. The positioning system includes a positioning tag (also referred to as a positioning device), a positioning base station, and a positioning server, wherein the positioning tag and the positioning base station pass the low-power Bluetooth BLE. (English: Bluetooth Low Energy) communicates using the Bluetooth broadcast protocol, wherein the Bluetooth broadcast protocol message includes a non-linkable broadcast protocol, a linkable undirected broadcast protocol, a linkable directed broadcast protocol, and a scannable broadcast protocol. The locating tag periodically sends a Bluetooth broadcast protocol packet (for example, a non-linkable broadcast packet) to the locating base station, and the locating base station receives the Bluetooth broadcast protocol packet of the locating label, and extracts the data and the RSSI (Received Signal Strength Indication) group. The network packet is packetized and reported to the positioning server through a network (for example, Wifi, ZigBee, 4G, etc.), and after receiving the data sent by the positioning base station, the positioning server obtains the location information of the positioning tag and displays it in the designated map. Therefore, the location where the positioning tag is located is located, or the positioning server calculates the location information of the positioning tag and performs other processing according to the specific application. It should be noted that the positioning label and the setting in the embodiment of the present application Bit tags can be used interchangeably to refer to a positioning device placed on a positioned object (including a person's clothes, a helmet, a mobile phone, etc.) or an independent positioning device, and other types of Bluetooth communication that can be performed with a positioning base station. Position the device.

Referring to FIG. 2, a positioning system according to an embodiment of the present invention includes a positioning base station group composed of a plurality of positioning base stations, and a positioning area of all positioning base stations in the positioning base station group constitutes a positioning area of the positioning base station group. Figure 2 shows three scenarios in which the positioning tag is present, departed, and approached (a special case of presence). Wherein, for the determination of the side of the positioning tag, the presence indicator indicates that the positioning tag is located in the positioning area of the positioning base station group, that is, as long as the positioning area of the positioning base station is located in any one of the positioning base station groups; Positioning the location area of the base station; the approach indicates the process of the positioning tag entering the location area of the positioning base station; for the judgment of a specific positioning base station side, the presence field indicates that the positioning tag is in the state of the positioning area of the specific positioning base station, The field identifier indicates a state in which the positioning tag leaves the positioning area of the specific positioning base station, and the approach identifier indicates a state in which the positioning tag enters the positioning area of the specific positioning base station.

In the prior art, regardless of whether the positioning tag is in the positioning area of the positioning base station group, each positioning service function on the positioning tag continues to work as usual, which will result in continuous power consumption and cannot effectively save power consumption. Moreover, most of the existing positioning tags are generally powered by button batteries. The capacity of the button batteries is limited. If the power consumption of the positioning tags is not limited, the battery life of the button batteries is short, and then the battery needs to be charged or replaced, and the cost is very high.

In order to save the power consumption of the tag, the power supply in the locating tag can be continuously served for a longer period of time. The embodiment of the present application provides a positioning method. As shown in FIG. 3, the method includes the following parts:

302: The positioning tag periodically sends a positioning label broadcast message to the positioning base station group.

In a specific implementation manner, the positioning label periodically sends the positioning label broadcast message to the positioning base station group by using a special departure protocol, for example, according to a certain period, and the sending frequency may be lower than the existing Bluetooth broadcast message protocol. Thereby, the power consumption of the positioning tag can be further reduced. Of course, the transmission frequency can also be adjusted according to actual needs. In a specific implementation manner, the special departure protocol can be obtained by modifying an existing Bluetooth broadcast message protocol, such as a non-linkable broadcast protocol, a linkable undirected broadcast protocol, a linkable directed broadcast protocol, or a scannable broadcast protocol. The characteristics are basically the same as the existing Bluetooth broadcast message protocol, so it has the advantages of easy implementation, high security, good real-time performance, high efficiency, etc., and because the Bluetooth broadcast message protocol interacts on both sides of the broadcast channel, Low cost features. It should be noted that the special departure protocol obtained by modifying the existing Bluetooth broadcast message protocol is mainly used for determining the departure of the positioning label, and the other data communication of the positioning label and the positioning base station still adopts the existing Bluetooth broadcast message protocol. . It can be understood that the special departure protocol may also adopt other protocols, and the present invention is not particularly limited. The following is an example of the special departure protocol that is obtained by modifying an existing scannable broadcast message protocol, a linkable undirected broadcast protocol, or a non-linkable broadcast protocol. It should be noted that the departure determination used herein includes the positioning determination of any state in the above three scenarios (for example, including presence and approach determination), and not just the determination to leave the positioning base station group or the positioning base station.

Manner 1: A special departure protocol is obtained by modifying the scannable broadcast message protocol. Referring to FIG. 6 , according to the Bluetooth standard, the existing scanable broadcast message protocol is mainly used for sending data, and the application scenario is mainly that the data length is greater than 31 bytes and not greater than 62 bytes. The existing scannable broadcast message protocol includes three messages: a SCAN_IND message, a SCAN_REQ message, and a SCAN_REP message, wherein the SCAN_IND message is sent by the broadcaster (location tag) to the scanner (location base station), SCAN_REQ The message is a message that the scanner responds to the broadcaster, and the SCAN_REP message is a scan response message sent by the broadcaster to the scanner after receiving the response message of the scanner.

The modification is as follows:

(1) Delete the scan response message SCAN_RSP;

(2) Modify the field configuration in the SCAN_IND packet: delete the Data field, modify the meaning of the value in the Flag field, the Flag field occupies 1 byte, and carries the tag information. The value of the tag information, for example, can be configured as 0x81, indicating that The packet is a special departure protocol packet, so that the positioning base station determines, according to the value, whether the packet is an off-mission protocol packet;

(3) The ScanA field in the SCAN_REQ message indicates the Bluetooth address of the positioning base station (consistent with the existing scannable broadcast message protocol), and the value may have a certain change, but it should have regularity (for example, the same value, The synchronization length is incremented, and the characteristics of the specific algorithm formula are met, so that the positioning tag determines whether the SCAN_REQ message is a message sent by the positioning base station in the positioning area according to the value, thereby preventing the non-base station Bluetooth from responding to the SCAN_REQ message.

The special departure protocol formed by modifying the existing scannable broadcast message protocol includes a SCAN_IND message and a SCAN_REQ message. The positioning tag periodically sends the positioning label broadcast message to the positioning base station group by using the SCAN_IND message.

The existing scannable broadcast protocol interacts on both sides of the broadcast channel and has low power consumption characteristics, and the modified special departure protocol also has the characteristics of low power consumption, and does not require sending SCAN_RSP messages, which further reduces the Bluetooth sends power consumption, which has the advantage of further lower power consumption.

Method 2: Obtain a special departure agreement by modifying the existing linkable undirected broadcast protocol. Referring specifically to FIG. 7, according to the Bluetooth standard, the existing linkable undirected broadcast protocol includes an ADV_IND message, which is transmitted by the broadcaster (location tag) to the scanner (location base station).

The modification is as follows:

(1) Increasing the ADV_IND message sent by the scanner to the broadcaster. For the sake of distinction, the ADV_IND message sent by the broadcaster (location tag) to the scanner (location base station) is identified as an ADV_IND(1) message, and the scanner is The ADV_IND message transmitted by the (location base station) to the broadcaster (location tag) is identified as an ADV_IND(2) message.

(2) Modify the field configuration in the ADV_IND(1) message: delete the Data field, modify the meaning of the value in the Flag field, the Flag field occupies 1 byte, and carries the tag information. The value of the tag information can be configured, for example, as 0x81. Indicates that the packet is a special departure protocol packet, so that the positioning base station determines whether the packet is an off-mission protocol packet according to the value.

(3) Modify the field configuration in the ADV_IND(2) message: the ADvA (6byte) field in the original ADV_IND message is correspondingly represented as ScanA (6byte), which represents the positioning base station Bluetooth address (and the existing scannable broadcast) The message protocol is consistent. The value may have a certain change, but it should have regularity (for example, the same value, the synchronization length is incremented, and the specific algorithm formula is met), so that the positioning tag determines whether the SCAN_REQ message is based on the value. The packet sent by the base station is located in the location area, thereby preventing the non-base station Bluetooth from responding to the influence of the SCAN_REQ message. The Flag field in ADV_IND(2) is represented as the departure response flag, and the value is incremented by 1 in the ADV_IND(1) field so that the broadcaster receiving the response message knows that the message is in response to the ADV_IND it sent. (1) Message.

The special departure protocol formed by modifying the existing linkable undirected broadcast protocol includes the ADV_IND(1) message and the ADV_IND(2) message. The positioning tag periodically sends a positioning label broadcast message to the positioning base station group by using the ADV_IND(1) message.

Method 3: Obtain a special departure agreement by modifying the existing non-linkable broadcast protocol. Referring to FIG. 8, according to the Bluetooth standard, the original non-linkable broadcast protocol includes an ADV_NOCONN_IND message, which is transmitted by the broadcaster (location tag) to the scanner (location base station).

The modification is as follows:

(1) Increasing the ADV_NOCONN_IND message sent by the scanner to the broadcaster. For the sake of distinction, the ADV_NOCONN_IND message sent by the broadcaster (location tag) to the scanner (location base station) is identified as an ADV_NOCONN_IND(1) message, and the scanner is The ADV_NOCONN_IND message sent by the (location base station) to the broadcaster (location tag) is identified as an ADV_NOCONN_IND(2) message.

(2) Modify the field configuration in the ADV_NOCONN_IND(1) message: delete the Data field and modify the meaning of the value in the Flag field. The Flag field occupies 1 byte and carries the tag information. The value of the tag information can be configured, for example, as 0x81. Indicates that the packet is a special departure protocol packet, so that the positioning base station determines whether the packet is an off-mission protocol packet according to the value.

(3) Modify the field configuration in the ADV_NOCONN_IND(2) message: the ADvA (6byte) field in the original ADV_NOCONN_IND message is correspondingly represented as ScanA (6byte), which indicates the positioning base station Bluetooth address (and the existing scannable broadcast) The message protocol is consistent. The value may have a certain change, but it should have regularity (for example, the same value, the synchronization length is incremented, and the specific algorithm formula is met), so that the positioning tag determines whether the SCAN_REQ message is based on the value. The packet sent by the base station is located in the location area, thereby preventing the non-base station Bluetooth from responding to the influence of the SCAN_REQ message. The Flag field in ADV_NOCONN_IND(2) is represented as the departure response flag, and the value of the Flag in the ADV_NOCONN_IND(1) field is incremented by one, so that the broadcaster receiving the response message knows that the message is in response to the ADV_NOCONN_IND it sent. (1) Message.

The special departure protocol formed by modifying the existing linkable undirected broadcast protocol includes the ADV_NOCONN_IND(1) message and the ADV_NOCONN_IND(2) message. The positioning tag periodically sends a positioning label broadcast message to the positioning base station group by using the ADV_NOCONN_IND(1) message.

It should be noted that, in another embodiment, the positioning label may also use the existing Bluetooth broadcast packet protocol to send the positioning label broadcast message and receive the returned positioning label broadcast response message, and broadcast the response according to the positioning label. The Bluetooth address of the positioning base station carried in the packet determines whether the positioning tag leaves the positioning area of the positioning base station group. The specific determination steps in this manner can be referred to the description in the present embodiment and the embodiment in FIG. 5. Compared with the prior art, the positioning tag in the implementation manner may perform the departure determination, and after determining whether the positioning tag leaves the positioning area of the positioning base station group, close the positioning label except the departure determination. Other positioning business functions can save power consumption of the point label, so that the power supply in the positioning label can continue to serve for a longer time.

The positioning tag performs positioning determination according to a special departure protocol message in the special departure protocol (for example, the above SCAN_IND message DV_IND(1) message or ADV_NOCONN_IND(1)), and the positioning label is based on the existing Bluetooth broadcast message protocol. In terms of judgment, it is more flexible and is more energy efficient. Because the transmission phase of the existing Bluetooth broadcast message protocol packet has certain restrictions (for example, it needs to be bound to the transmission positioning data), and the transmission and reception frequency is high, thereby increasing the power consumption of the positioning base station, it is better to adopt the special separation. Field protocol packets are more flexible (not limited to being sent with positioning data), and because of the use of special off-mission protocol packets, the transmission frequency is more flexible and usually lower than the frequency of data sent by existing protocols. Save power consumption of the positioning base station.

304: The positioning tag determines, by using a positioning tag broadcast response message returned by at least one positioning base station in the positioning base station group, whether the positioning tag leaves a positioning area of the positioning base station group.

In a specific implementation, the positioning tag monitors a positioning tag broadcast response message returned by the positioning base station in the positioning base station group on a channel that is the same as the positioning tag broadcast message; The positioning label broadcast response message returned by the at least one positioning base station and the positioning base station Bluetooth address information carried in the positioning label broadcast response message determine whether the positioning label has left the positioning area of the positioning base station group. The process of determining the departure or presence is specifically referred to the positioning determination on the positioning label side in FIG. 7 below, and will not be described in detail herein.

306: If the positioning label leaves the positioning area of the positioning base station group, close the positioning service function except the departure field determining function on the positioning label.

After the positioning label leaves the field, all the positioning service functions except the departure judgment function (including the periodic transmission of the positioning label broadcast message and the receiving positioning label broadcast response message, counting, field judgment, etc.) are turned off, and the data chip (including the geomagnetic field) The gyroscope chip, but not limited to such a chip, enters a sleep state. The positioning service functions include positioning service functions such as stopping transmission of positioning data (for example, transmitting Bluetooth unlinkable broadcast messages), stopping positioning data collection, and positioning data calculation.

Referring to FIG. 4, another positioning method provided by the embodiment of the present application includes the following parts:

402: Receive a first positioning label broadcast message that is periodically sent by the positioning label, where the first positioning label broadcast message carries the tag information and the address information of the positioning tag, and the tag information indicates that the first positioning tag broadcasts Message A special departure protocol message.

With reference to section 302 in the foregoing embodiment of FIG. 3, the first positioning label broadcast message uses a special departure protocol message. As described above, the special departure protocol is modified by scanning the broadcast message protocol. Obtained from a broadcast protocol or a non-linkable broadcast protocol.

In the case of the scanning broadcast message protocol in the foregoing mode 1, the address information of the positioning tag may be carried in the AdvA domain in the SCAN_IND message, and the tag information may be carried in the Flag field in the SCAN_IND message, indicating the The first positioning label broadcast message is a special departure protocol message.

In the case of using the linkable undirected broadcast protocol in the foregoing mode 2, the address information of the positioning tag may be carried in the AdvA domain in the ADV_IND(1) message, and the tag information may be carried in the ADV_IND(1) message. The Flag field indicates that the first positioning label broadcast message is a special departure protocol message.

In the case of using the non-linkable broadcast protocol in the foregoing mode 3, the address information of the positioning tag may be carried in the AdvA domain in the ADV_NOCONN_IND(1) message, and the tag information may be carried in the ADV_NOCONN_IND(1) message. The domain indicates that the first positioning label broadcast message is a special departure protocol message.

404: The positioning base station records address information of the positioning tag.

After receiving the first positioning label broadcast message, the positioning base station obtains the address information of the positioning label in the first positioning label broadcast message, and records the address information of the positioning label in the storage of the positioning base station. The device may specifically include various types of storage devices, such as flash memory, and other types of memories, such as a high-speed random access memory (RAM), and may also include non-volatile memory.

406: The positioning base station determines, according to the marking information, that the positioning label is located in a positioning area of the base station, and returns a positioning label broadcast response message to the positioning label.

After receiving the broadcast packet of the first locating label, the locating base station obtains the marking information in the broadcast packet of the first locating label, and determines that the broadcast packet of the first locating label is a special detachment protocol packet, and then can determine The locating label is located in the locating area of the locating base station, and sends a locating label broadcast response message to the locating label according to the special detachment protocol, corresponding to the packet form of the first locating label broadcast message described above, the positioning The label broadcast response message may correspond to a SCAN_REQ message, an ADV_IND(2) message or an ADV_NOCONN_IND(2). The SCAN_REQ message DV_IND(2) message or the ScanA field of the ADV_NOCONN_IND(2) carries the Bluetooth address of the positioning base station to the positioning tag, and the positioning tag performs the departure determination according to the Bluetooth address.

In another specific implementation, the positioning base station may further include the following parts:

408: Determine that the positioning base station does not receive the second positioning label broadcast message carrying the address information of the positioning tag within the set time; if the determination result is yes, then go to 410; otherwise, go to 412.

410: If the positioning base station does not receive the second positioning label broadcast message carrying the address information of the positioning tag, the positioning label is determined to leave the positioning area of the positioning base station.

Specifically, the positioning base station monitors whether the second positioning label broadcast message carrying the same address information as the positioning label in the first positioning label broadcast message recorded in the foregoing is received, and if the first time is not received within the set time, the second positioning label broadcast message is received. And determining, by the second positioning label broadcast message, that the positioning label has left the positioning area of the positioning base station, and the positioning base station determines whether to perform the next processing according to the configuration of the application, for example, sending the determination result to the following figure. The positioning server is further processed by the positioning server according to the related application, because the positioning service processing of the positioning server is not very relevant to the present invention, and will not be detailed here. It can be understood that the packet format of the second locating label broadcast packet is the same as that of the first locating label broadcast packet, and may be referred to the above content, and details are not described herein again.

412: If the positioning base station receives the second positioning label broadcast message carrying the address information of the positioning tag, the determining whether the tag information in the second positioning tag broadcast message is equal to Set value If the result of the break is yes, then turn to 414; otherwise, turn to 416. The marking information in the second positioning label broadcast message is used to indicate whether the second positioning label broadcast message is a special departure protocol message.

Specifically, after receiving the second positioning label broadcast message, the positioning base station obtains the address information carried by the second positioning label broadcast message, and if the address information of the positioning label of the first positioning label broadcast message is the same as the foregoing, Then, it is further determined whether the marking information in the second positioning label broadcast message is equal to the set value; if the determination result is yes, then go to 414; otherwise, go to 416. For the specific judgment of whether the flag information is equal to the set value, reference may be made to the judgment of the positioning base station side in the positioning system in FIG. 7 described below. It will not be detailed here.

414: Determine that the positioning tag is located in a positioning area of the positioning base station, and return a positioning label broadcast response message to the positioning tag. For the manner of returning the positioning label broadcast response message to the positioning tag, refer to the above part 406, that is, the SCAN_REQ message DV_IND(2) message or ADV_NOCONN_IND(2) may be used, and the ScanA domain of the positioning base station carries the Bluetooth address of the positioning base station. Sending to the positioning tag, the positioning tag performs the departure determination according to the Bluetooth address.

416: If the flag information in the second positioning tag broadcast message is not equal to the set value, add the count value to 1, and determine the positioning tag when the count value reaches the set threshold. Leaving the location area of the positioning base station.

For specific judgment, refer to the positioning judgment described in the positioning system in FIG. 5 below, which will not be described in detail herein.

Compared with the prior art, the positioning base station determines according to the existing protocol message, and the positioning base station according to the special departure protocol message in the special departure protocol (such as the above SCAN_IND message DV_IND(1) message or ADV_NOCONN_IND (1) The positioning judgment can make the departure determination of the positioning base station more flexible (not limited to being transmitted together with the positioning data), and because the special departure protocol message is adopted, the transmission frequency is more flexible and usually lower than the existing protocol to transmit data. The frequency, which can save the power consumption of the positioning base station. Because the existing existing Bluetooth broadcast protocol messages (such as unlinkable broadcast protocols, linkable undirected broadcast protocols, linkable directed broadcast protocols, or scannable broadcast protocols) have certain restrictions on the transmission phase (eg, both need Binding with the transmission of the positioning data, and the high transmission and reception frequency, thereby increasing the power consumption of the positioning base station for positioning determination, so that it is more flexible to use the special departure protocol packet for departure determination (not limited to sending with the positioning data) ), and because the special off-mission protocol message is adopted, the transmission frequency is more flexible and usually lower than the frequency of the data transmitted by the existing protocol, thereby saving the power consumption of the positioning base station.

5 is a schematic flowchart of how a positioning system composed of a positioning tag 500 and a positioning base station 600 determines whether a positioning tag is out of the field, and includes: how the positioning tag broadcasts a response report according to the positioning tag returned by the positioning base station. The method determines whether the positioning tag leaves the positioning area of the positioning base station group, and how the positioning base station determines, according to the positioning label broadcast message sent by the positioning tag, whether the positioning tag leaves the positioning area of the base station. The specific instructions are as follows:

The positioning system includes a positioning tag 500 and a positioning base station 600. It should be noted that the positioning base station 800 is any one of the positioning base stations described above. The positioning tag 500 is a timer 502, a transmitter 506, a receiver 508, and a memory and a processor (not shown in the figure. For details, refer to steps 508-518 or function modules or subroutines in FIG. 11, FIG. Stored in the memory, and executed by the processor, the function module or subroutine completes the positioning judgment function of the positioning system). The positioning base station 600 includes a receiver 602, a transmitter 608, and a memory and a processor (not shown in the figure. For details, refer to FIG. 11, and steps 604, 606, and 610-618 in FIG. 5 or function modules or subroutines may be stored. In the memory, and the processor executes the function module or subroutine to complete the positioning judgment function of the positioning system)

As shown in FIG. 7 , the positioning system performs the positioning label departure determination including two parts, the positioning label side and the positioning base station side, and is combined with the three scenarios shown in FIG. 2, that is, presence (for the judgment of the positioning label side, Indicates that the positioning tag is in the state of the positioning area of the positioning base station group, and the determination of the positioning base station side indicates that the positioning tag is in the positioning area of the positioning base station) and the departure (determination on the positioning tag side) a state indicating that the positioning tag leaves the positioning area of the positioning base station group, and determining, by the positioning base station side, that the positioning tag leaves the positioning base station The state of the location area and the approach (for the determination of the location tag side, indicating the state in which the location tag enters the location area of the positioning base station group, and the determination of the location base station side indicates that the location tag enters the Positioning the positioning area of the base station) The positioning judgment of the positioning positioning label and the positioning base station is as follows:

1. Positioning label side

When the positioning tag is powered on or reset, it is in the default state by default.

(1) Positioning label departure judgment

After the positioning tag is present, the transmitter 506 sends the positioning tag broadcast to the positioning service base station 600 according to the timing of the timer 502 (for example, every 60s or other value greater than 0, or other set time, specifically according to the application scenario setting). The message (for example, the SCAN_IND message mentioned above, as exemplified below), the positioning tag monitors the positioning tag broadcast response message on the same channel (corresponding to the SCAN_REQ message in the above, for example) Take an example for explanation).

510: The positioning tag determines whether a positioning tag broadcast response message (for example, a SCAN_REQ message) sent by the transmitter 608 of the positioning base station 600 is received on the channel; if yes, then go to 512; if not, go to 514. In another embodiment, if the positioning label broadcast response message sent by the transmitter 608 of the positioning base station 600 is not received on the channel within a set time, the positioning label is determined to leave the field, that is, leave the station. The positioning area of the positioning base station group is described.

512: The positioning tag determines whether a value of a ScanA field in the SCAN_REQ message sent from the positioning base station (for example, the value is specifically a Bluetooth address of the positioning base station) is equal to a set value (the set value indicates a regular value) , if the same value, the synchronization length is incremented, and the specific algorithm formula is met; if yes, then 520, determining that the positioning tag is still present, that is, in the positioning area of the positioning base station group, and clearing the count (for example, the count value is 0) ); if no, go to 514.

The above regular value may specifically include one of the following conditions:

The same value: the Bluetooth address values of all the positioning base stations in the positioning area or all the positioning base stations in the positioning base station group are equal;

Synchronization long increment: the Bluetooth addresses of all the positioning base stations in the positioning area or all the positioning base stations in the positioning base station group are incremented according to the specified step size;

Corresponding to a specific algorithm formula: the Bluetooth addresses of all the positioning base stations in the positioning area or all the positioning base stations in the positioning base station group are calculated according to the algorithm formula;

Others: The Bluetooth addresses of all the positioning base stations in the positioning area or all the positioning base stations in the positioning base station group are calculated according to other regular manners.

514: If the positioning tag determines that the SCAN_REQ message is not received on the channel within the set time, or the value of the ScanA field in the SCAN_REQ message is not equal to the set value, then the count value is incremented by one. 516.

516: When it is determined that the count exceeds the limit value (for example, 3 or other values greater than 0, according to the application scenario), it is determined that the positioning tag has left the field, that is, leaves the positioning area of the positioning base station group, and maintains The count value does not change.

After the positioning label leaves the field, all the positioning service functions except the departure judgment function (including periodically sending SCAN_IND message, receiving SCAN_REQ message, counting, field judgment) are turned off, and the data chip (including geomagnetic and gyro chip is not Limited to such chips) go to sleep. The positioning service functions include positioning service functions such as stopping transmission of positioning data (for example, transmitting Bluetooth unlinkable broadcast messages), stopping positioning data collection, and positioning data calculation.

If the positioning tag itself does not perform the above-mentioned departure determination, the above-mentioned positioning service functions, such as the function of transmitting positioning data, positioning data collection and calculation functions, remain in the running state regardless of whether they are in the field or in the field, thereby causing the positioning tag to remain high. Power consumption state, shorten battery life cycle.

(2) Positioning label entry judgment

After the positioning label leaves the field, the timer still sends the SCAN_IND message periodically and listens for the SCAN_REQ message on the same channel. If the SCAN_REQ message is received on the channel and the ScanA field is equal to the set value, it is judged that it has entered the field and clears the count value; otherwise, it still leaves the field and keeps the count value unchanged. Specific detailed judgment process reference to the above Field judgment. I will not repeat them here.

After the positioning tag enters the field, all positioning service functions are enabled, including the functions of sending positioning data, positioning data collection and calculation functions as described above.

2. Positioning the base station side

It should be noted that, as described above, the positioning base station is any one of the positioning base stations in the positioning base station group.

604: The positioning base station determines whether the receiver 602 of the positioning base station receives the positioning label broadcast message sent by the positioning tag within a set time (the SCAN_IND message is used as an example here); if the judgment result is yes Then, go to 610; if no, go to 612, or if it is no, directly determine that the positioning tag has left the positioning area of the positioning tag.

It should be noted that the specific positioning label is used as an example. The specific positioning label may be a positioning label broadcast message that has been received by the positioning base station before the positioning of the positioning label, and the lower positioning label is recorded, for example, by The address information of the positioning tag in the broadcast packet of the positioning tag is recorded, and the positioning tag is associated with the address information.

610: After receiving the positioning label broadcast message of the positioning tag, the receiver 602 of the positioning base station returns a positioning label broadcast response message to the pair of the label, and further determines whether the marking information in the positioning label broadcast message is set. If the result of the determination is yes, then go to 618 to determine that the positioning tag is present, that is, in the positioning area of the positioning base station; if the determination result is no, then turn 612 to increase the count value by one.

The SCAN_IND message and the SCAN_REQ message are used as an example to illustrate that the SCAN_REQ message is automatically sent after the SCAN_IND message is received by the positioning base station protocol stack, and is reported to the application layer. The application layer processes the SCAN_IND message according to requirements, and may not process it. If the application layer receives the SCAN_IND message and the Flag field is equal to the set value, it is determined that the positioning tag is present, and if the Flag field is not equal to the set value, then 612 is performed. For the specific judgment manner, refer to the judgment of the positioning label side in the above embodiment, and details are not described herein.

612: Add 1 to the count value.

614: Determine whether the count value exceeds the limit value (for example, 3 or other values, specifically may be set as needed); if the determination result is yes, then go to 616 to determine that the positioning tag has left the positioning area of the positioning base station.

After the positioning base station determines that the positioning label leaves the field or enters the field, it processes according to the application requirements.

FIG. 9 is a schematic block diagram of a structure of a positioning device 900 according to an embodiment of the present application. The device shown in FIG. 10 may be a positioning device or a positioning tag in the foregoing method embodiment (as shown in FIGS. 1-3 and 5). The function of the above positioning device or positioning tag can be realized. The positioning device is applied to the positioning system, and the positioning device comprises a transceiver unit 902 and a processing unit 904.

The transceiver unit 900 is configured to periodically send a positioning label broadcast message to the positioning base station group;

The processing unit 902 is configured to determine, by using a positioning label broadcast response message returned by the at least one positioning base station in the positioning base station group, whether the positioning label leaves a positioning area of the positioning base station group, and leave the positioning label in the positioning label When the location area of the base station group is located, the positioning service function except the departure determination function on the positioning label is turned off.

For details of the manner in which the transceiver unit 902 periodically sends the locating label broadcast message to the locating base station group, refer to the description in the foregoing embodiment of FIG. 3 and FIG. 5, and details are not described herein again.

The processing unit 904, by using the positioning label broadcast response message returned by the at least one positioning base station of the positioning base station group, to determine whether the positioning label leaves the positioning area of the positioning base station group, may refer to FIG. 3 and the foregoing. The specific method of determining the departure in 5 is not repeated here.

The processing unit 904 is further configured to: when the positioning tag is in a positioning area of the positioning base station group, turn on a positioning service function that is turned off on the positioning device.

FIG. 10 is a schematic block diagram of a structure of a positioning base station 1000 according to an embodiment of the present application. The positioning base station shown in FIG. 10 may be a positioning base station in the foregoing method embodiment (as shown in FIGS. 1-2 and 4-5). The function of the positioning base station in the above embodiment can be implemented. The positioning base station is applied to the positioning system, and the positioning base station includes a transceiver unit 1002 and a processing unit 1004.

The transceiver unit 1002 is configured to receive a first positioning label broadcast message that is periodically sent by the positioning label, where the first positioning label broadcasts a message carrying tag information and address information of the positioning tag, where the tag information indicates The first positioning label broadcast message is a special departure protocol message;

The processing unit 1004 is configured to record address information of the positioning tag, and the positioning base station determines, according to the tag information, that the positioning tag is located in a positioning area of the base station, and instructs the transceiver unit to return to the positioning tag. The positioning tag broadcasts a response message.

For details of the manner in which the transceiver unit 1002 receives the first locating label broadcast packet that is periodically sent by the locating label, refer to the description in the foregoing embodiment of FIG. 4 and FIG. 5, and details are not described herein again.

The processing unit 1004 records the address information of the positioning tag, determines that the positioning tag is located in the positioning area of the base station, and instructs the transceiver unit to return a positioning tag broadcast response message to the positioning tag. For specific implementations, reference may be made to the specific implementations in the foregoing FIG. 4 and FIG. 5, and details are not described herein again.

In another embodiment, the processing unit 1004 is further configured to determine, if the processing unit does not receive the second positioning tag broadcast message carrying the address information of the positioning tag within a set time, Determining the second positioning by the positioning device leaving the positioning area of the positioning base station; or if the processing unit receives the second positioning label broadcast message carrying the address information of the positioning device within a set time Whether the tag information in the tag broadcast message is equal to the set value, and the tag information in the second locator tag broadcast message is used to indicate whether the second locator tag broadcast message is a special leave protocol message; If the tag information in the broadcast packet of the second locating label is equal to the set value, determining that the locating device is in the locating area of the locating base station, and returning a locating label broadcast response message to the locating device; If the tag information in the second positioning tag broadcast message is not equal to the set value, the count value is incremented by 1, and when the count value reaches the set threshold, it is determined. Said positioning device is positioned away from the location area of the base station. For specific implementations, reference may be made to the foregoing specific implementations in FIG. 4 and FIG. 5, and details are not described herein again.

Figure 11 is a schematic structural diagram of a positioning device 1100 according to an embodiment of the present application. The positioning device shown in Figure 11 may be a positioning device or a positioning tag and a positioning base station in the foregoing method embodiment (as shown in Figure 1-5). The functions of the above positioning device or the positioning tag and the positioning base station device can be implemented. As shown in FIG. 11, the apparatus 1100 includes a processor 1102, a memory 1104, and a transceiver 1108, and various connection lines 1110 that connect the processor 1102, the memory 1104, and the transceiver 1108. The transceiver 1106 is configured to communicate with the outside device, the memory 1104 is configured to store program instructions or programs 1106, and the memory 1104 may include a high speed random access memory (RAM: Random Access Memory), and may also include non-unstable memory ( Non-volatile memory, such as at least one disk storage, processor 1302 can invoke program instructions stored in memory 1104 to perform the corresponding functions.

In a specific embodiment, the positioning device is the aforementioned positioning device, and in this embodiment:

The transceiver 1102 is configured to periodically send a positioning label broadcast message to the positioning base station group;

The processor 1104 is configured to determine, by using a positioning label broadcast response message returned by the at least one positioning base station in the positioning base station group, whether the positioning label leaves a positioning area of the positioning base station group, and leave the positioning label in the positioning label When the location area of the base station group is located, the positioning service function except the departure determination function on the positioning label is turned off.

For the specific manner in which the transceiver 1102 periodically sends the locating label broadcast message to the locating base station group, refer to the description in the foregoing embodiment of FIG. 3 and FIG. 5, and details are not described herein again.

The processor 1104 determines, by using the positioning label broadcast response message returned by the at least one positioning base station of the positioning base station group, whether the positioning label leaves the positioning area of the positioning base station group. For example, refer to FIG. 3 and the foregoing. The specific method of determining the departure in 5 is not repeated here.

The processor 1104 is further configured to: when the positioning device is in a positioning area of the positioning base station group, turn on a positioning service function that is closed on the positioning device.

In another specific implementation manner, the positioning device is the foregoing positioning base station, and in this embodiment:

The transceiver 1102 is configured to receive a first positioning label broadcast message that is periodically sent by the positioning label, where the first positioning label broadcasts a message carrying tag information and address information of the positioning tag, where the tag information indicates The first positioning label broadcast message is a special departure protocol message;

The processor 1104 is configured to record, by the positioning base station, address information of the positioning tag, where the positioning base station determines, according to the marking information, that the positioning tag is located in a positioning area of the base station, and instructs the transceiver unit to The positioning tag returns a positioning tag broadcast response message.

For details of the manner in which the transceiver 1102 receives the first locating label broadcast packet that is periodically sent by the locating label, refer to the description in the foregoing embodiments of FIG. 4 and FIG. 5, and details are not described herein again.

The processor 1104 records the address information of the positioning tag, determines, according to the tag information, that the positioning tag is located in a positioning area of the base station, and instructs the transceiver unit to return a positioning tag broadcast response message to the positioning tag. For specific implementations, reference may be made to the specific implementations in the foregoing FIG. 4 and FIG. 5, and details are not described herein again.

In another embodiment, the processor 1104 is further configured to determine, if the processing unit does not receive the second positioning tag broadcast message carrying the address information of the positioning tag within a set time, Determining the second positioning by the positioning device leaving the positioning area of the positioning base station; or if the processing unit receives the second positioning label broadcast message carrying the address information of the positioning device within a set time Whether the tag information in the tag broadcast message is equal to the set value, and the tag information in the second locator tag broadcast message is used to indicate whether the second locator tag broadcast message is a special leave protocol message; If the tag information in the broadcast packet of the second locating label is equal to the set value, determining that the locating device is in the locating area of the locating base station, and returning a locating label broadcast response message to the locating device; If the tag information in the second positioning tag broadcast message is not equal to the set value, the count value is incremented by 1, and when the count value reaches the set threshold, the location is determined. Positioning the positioning device away from the positioning area of the base station. For specific implementations, reference may be made to the foregoing specific implementations in FIG. 4 and FIG. 5, and details are not described herein again.

It should be noted that, in the embodiment shown in FIG. 11 , in addition to the above-mentioned conventional manners such as executing the program code command mode on the memory by the processor, the present embodiment may also virtualize the NFV based on the physical server combined with the network function. A technically implemented virtual first network device and a second network device, the virtual first network device being a virtual router or a switch. Those skilled in the art can use the NFV technology to virtualize a plurality of PE devices having the above functions on a physical server by reading the present application. I will not repeat them here.

FIG. 12 is a schematic structural diagram of a positioning system 1200 according to an embodiment of the present application. The system shown in FIG. 12 includes a positioning device 1202 and a positioning base station 1204, wherein the positioning device may be FIG. 1-5 and The positioning device or the positioning tag in the embodiment of 9; the positioning base station may be the positioning base station in the embodiments in Figures 1-5 and 9 of Figures 1-5 and 9 above. The functions of the locating device and the locating base station in the present embodiment or the steps to be performed are specifically referred to the foregoing embodiments, and are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. Another point, the mutuals shown or discussed The coupling or direct coupling or communication connection between the two may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, or each module may exist physically separately, or two or more modules may be integrated into one unit. The above integrated modules can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a random access memory (English name: Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like, which can store data.

Claims

A positioning method is applied to a positioning system and a positioning system comprising a positioning base station group formed by at least two positioning base stations, wherein the method comprises:

The positioning tag periodically sends a positioning label broadcast message to the positioning base station group;

Determining, by the positioning tag broadcast response message returned by the at least one positioning base station in the positioning base station group, whether the positioning tag leaves a positioning area of the positioning base station group;

And in a case that the positioning tag leaves the positioning area of the positioning base station group, the positioning service function except the departure field determining function on the positioning label is closed.
The method according to claim 1, wherein the positioning tag turns on a positioning service function that is turned off on the positioning tag if it is determined that the positioning tag is in a positioning area of the positioning base station group.
The method according to claim 1 or 2, wherein the positioning tag determines whether the positioning tag leaves the positioning base station group by using a positioning tag broadcast response message returned by at least one positioning base station in the positioning base station group. The location area specifically includes:

The locating tag monitors a positioning tag broadcast response message returned by the positioning base station in the positioning base station group on a channel that is the same as the ping packet broadcast message;

Determining that the positioning tag has left the positioning base station group if the positioning tag does not receive the positioning tag broadcast response message returned by the at least one positioning base station in the positioning base station group on the same channel. Positioning area.
The method according to claim 1 or 2, wherein the positioning tag determines whether the positioning tag leaves the positioning base station group by using a positioning tag broadcast response message returned by at least one positioning base station in the positioning base station group. The location area specifically includes:

S1: The positioning tag monitors a positioning tag broadcast response message returned by the positioning base station in the positioning base station group on a channel that is the same as the positioning tag broadcast message.

S2: The positioning tag receives, on the same channel, a positioning label broadcast response message returned by at least one positioning base station in the positioning base station group, where the positioning label broadcast response message includes the at least one positioning base station Bluetooth address;

S3: The positioning tag determines whether the Bluetooth address of the at least one positioning base station has regularity. If there is no regularity, the counting value is increased by 1, and when the counting value does not reach the set threshold, the step further is performed. S1 to S3;

S4: When the count value reaches the set threshold, determine that the positioning tag has left the positioning area of the positioning base station group.
The method according to claim 4, wherein if the positioning tag determines that the Bluetooth address of the at least one positioning base station has regularity in the step S3, the positioning tag determines that the positioning tag is in the Locating the location area of the base station group, clearing the count value, and turning on the positioning service function that is closed on the positioning label.
The method according to claim 4 or 5, wherein the determining whether the Bluetooth address of the at least one positioning base station has regularity specifically includes one of the following cases:

The Bluetooth address values of the plurality of positioning base stations in the positioning area are the same;

The Bluetooth address values of the plurality of positioning base stations in the positioning area are incremented by a specified step size;

The Bluetooth address values of the plurality of positioning base stations in the positioning area are calculated according to a specific algorithm formula.
The method according to any one of claims 2-5, wherein the positioning service function that is closed on the positioning tag comprises at least one of the following functions: a positioning data collection function, a positioning data calculation function, and a positioning data. Send function.
The method of any of claims 1-7, wherein the positioning tag broadcast message and the positioning tag broadcast response message adopt a special departure protocol, and the special departure protocol comprises a SCAN_IND message and The SCAN_REQ packet, the locating label broadcast message is the SCAN_IND message, the locating label broadcast response message is the SCAN_REQ message, and the special departure protocol is obtained by modifying a scannable broadcast message protocol.
The method of claim 8 wherein said special departure protocol does not include a SCAN_REP message and said SCAN_IND message does not include a Data field.
The method of any of claims 1-7, wherein the positioning label broadcast message and the positioning label broadcast response message adopt a special departure protocol, and the special departure protocol comprises ADV_IND(1) The message and the ADV_IND(2) message, the positioning tag broadcast message is the ADV_IND(1) message, and the positioning tag broadcast response message is the ADV_IND(2) message, the special departure The protocol is obtained by modifying the linkable undirected broadcast protocol.
The method of claim 10, wherein the ADV_IND(1) and ADV_IND(2) messages do not include a Data field, and the ADV_IND(2) includes a ScanA field carrying a Bluetooth address of the positioning base station.
The method according to any one of claims 1-7, wherein the positioning label broadcast message and the positioning label broadcast response message adopt a special departure protocol, and the special departure protocol includes ADV_NOCONN_IND(1) The message and the ADV_NOCONN_IND(2) message, the positioning tag broadcast message is the ADV_NOCONN_IND(1) message, and the positioning tag broadcast response message is the ADV_NOCONN_IND(2) message, the special departure The protocol is obtained by modifying the unlinkable broadcast protocol.
The method of claim 12, wherein the ADV_NOCONN_IND(1) and ADV_NOCONN_IND(2) messages do not include a Data field, and the ADV_NOCONN_IND(2) includes a ScanA field carrying a Bluetooth address of the positioning base station.
A positioning method is applied to a positioning system and a positioning system comprising a positioning base station group formed by at least two positioning base stations, wherein the method comprises:

The positioning base station of the positioning base station receives the first positioning label broadcast message that is periodically sent by the positioning label, the first positioning label broadcast message carrying the label information and the address information of the positioning label, the label information Instructing the first positioning label broadcast message to be a special departure protocol message;

The positioning base station records address information of the positioning tag;

Determining, by the positioning base station, that the positioning tag is located in a positioning area of the base station according to the marking information, and The positioning tag returns a positioning tag broadcast response message.
The method of claim 14 further comprising:

If the positioning base station does not receive the second positioning label broadcast message carrying the address information of the positioning tag, the positioning label is determined to leave the positioning area of the positioning base station.
The method of claim 15 further comprising:

If the positioning base station receives the second positioning tag broadcast message carrying the address information of the positioning tag, the determining whether the tag information in the second positioning tag broadcast message is equal to the set value The marking information in the second positioning label broadcast message is used to indicate whether the second positioning label broadcast message is a special departure protocol message;

If the tag information in the broadcast packet of the second locating label is equal to the set value, determining that the locating tag is in a locating area of the locating base station, and returning a locating tag broadcast response message to the locating tag;

If the flag information in the second positioning tag broadcast message is not equal to the set value, add the count value to 1, and when the count value reaches the set threshold, determine that the positioning tag leaves the location The positioning area of the positioning base station is described.
The method of claim 16, wherein the flag information is equal to a set value indicating that the tag information indicates that the second positioning tag broadcast message is a special departure protocol message.
The method according to any one of claims 14-17, wherein the positioning label broadcast message and the positioning label broadcast response message adopt a special departure protocol, and the departure protocol message includes a SCAN_IND message. And the SCAN_REQ message, the positioning tag broadcast message is the SCAN_IND message, the positioning tag broadcast response message is the SCAN_REQ message, and the special departure protocol is obtained by modifying a scannable broadcast message protocol.
The method according to claim 18, wherein said special departure protocol does not include a SCAN_REP message, and said tag information is recorded in a Flag field in said SCAN_IND message, said SCAN_IND message The text does not include the Data field.
A positioning device is applied to a positioning device and a positioning system comprising a positioning base station group composed of at least two positioning base stations, wherein the positioning device comprises:

a transceiver unit, configured to periodically send a positioning device broadcast message to the positioning base station group;

a processing unit, configured to determine, by using a positioning label broadcast response message returned by at least one positioning base station in the positioning base station group, whether the positioning device leaves a positioning area of the positioning base station group, and leave the positioning in the positioning device In the case of the location area of the base station group, the positioning service function other than the departure determination function on the positioning device is turned off.
The locating device according to claim 20, wherein the processing unit is further configured to: when the positioning device is in a positioning area of the positioning base station group, turn on a positioning service function that is closed on the positioning device .
The locating device according to claim 20 or 21, wherein the processing unit determines whether the positioning device leaves the positioning base station by using a positioning tag broadcast response message returned by at least one positioning base station in the positioning base station group. The location area of the group specifically includes:

The processing unit monitors a positioning label broadcast response message returned by the positioning base station in the positioning base station group on a channel that is the same as the positioning label broadcast message;

If the transceiver unit does not receive the positioning label broadcast response message returned by the at least one positioning base station in the positioning base station group on the same channel, the processing unit determines that the positioning device has left the Locate the location area of the base station group.
The locating device according to claim 20 or 21, wherein the processing unit determines whether the positioning device leaves the positioning base station by using a positioning tag broadcast response message returned by at least one positioning base station in the positioning base station group. The location area of the group specifically includes:

S1: The processing unit monitors a positioning label broadcast response message returned by the positioning base station in the positioning base station group on a channel that is the same as the positioning label broadcast message.

S2: The transceiver unit receives, on the same channel, a positioning label broadcast response message returned by at least one positioning base station in the positioning base station group, where the positioning label broadcast response message includes the at least one positioning base station Bluetooth address;

S3: The processing unit determines whether the Bluetooth address of the at least one positioning base station has regularity. If there is no regularity, the counter value is incremented by 1, and when the count value does not reach the set threshold, the step is further executed. S1 to S3;

S4: When the count value reaches the set threshold, determine that the positioning device has left the positioning area of the positioning base station group.
The locating device according to claim 23, wherein if the processing unit determines that the Bluetooth address of the at least one positioning base station has regularity in the step S3, the processing unit determines that the positioning device is The positioning area of the positioning base station group is cleared to zero, and the positioning service function that is closed on the positioning device is enabled.
A positioning base station is applied to a positioning device and a positioning system comprising a positioning base station group formed by at least two positioning base stations, wherein the positioning base station is any one of the positioning base stations, wherein the The base station includes:

a transceiver unit, configured to receive a first positioning tag broadcast message that is periodically sent by the positioning device, where the first positioning tag broadcasts a message carrying tag information and address information of the positioning device, where the tag information indicates The first positioning label broadcast message is a special departure protocol message;

a processing unit, configured to record, by the positioning base station, address information of the positioning device, where the positioning base station determines, according to the marking information, that the positioning device is located in a positioning area of the base station, and instructs the transceiver unit to perform the positioning The device returns a positioning label broadcast response message.
The positioning base station of claim 25, wherein the processing unit is further configured to:

If the transceiver unit does not receive the second positioning label broadcast message carrying the address information of the positioning device, the positioning device is determined to leave the positioning area of the positioning base station.
The positioning base station according to claim 26, wherein the processing unit is further configured to:

If the transceiver unit receives the second positioning tag broadcast message carrying the address information of the positioning device, the determining whether the tag information in the second positioning tag broadcast message is equal to the set value The marking information in the second positioning label broadcast message is used to indicate whether the second positioning label broadcast message is a special departure protocol message;

If the tag information in the second positioning tag broadcast message is equal to the set value, determining that the positioning device is in the location Locating a positioning area of the base station, and returning a positioning label broadcast response message to the positioning device;

If the flag information in the second positioning tag broadcast message is not equal to the set value, add the count value to 1, and when the count value reaches the set threshold, determine that the positioning device leaves the location The positioning area of the positioning base station is described.
The positioning base station according to claim 27, wherein the flag information is equal to a set value indicating that the tag information indicates that the second positioning tag broadcast message is a special departure protocol message.
A positioning device is applied to a positioning device and a positioning system comprising a positioning base station group composed of at least two positioning base stations, wherein the positioning device comprises:

a transceiver, configured to periodically send a positioning label broadcast message to the positioning base station group;

a processor, configured to determine, by using a positioning label broadcast response message returned by at least one positioning base station in the positioning base station group, whether the positioning device leaves a positioning area of the positioning base station group, and leave the positioning in the positioning device In the case of the location area of the base station group, the positioning service function other than the departure determination function on the positioning device is turned off.
A positioning base station is applied to a positioning device and a positioning system comprising a positioning base station group formed by at least two positioning base stations, wherein the positioning base station is any one of the positioning base stations, wherein the The base station includes:

a transceiver, configured to receive a first positioning label broadcast message that is periodically sent by the positioning device, where the first positioning label broadcast message carries the tag information and address information of the positioning device, and the tag information indicates the first The locating label broadcast packet is a special departure protocol packet.

a processor, configured to record, by the positioning base station, address information of the positioning device, where the positioning base station determines, according to the marking information, that the positioning device is located in a positioning area of the base station, and instructs the transceiver unit to perform the positioning The device returns a positioning label broadcast response message.