CN104507160A - Wireless network positioning method, access point and positioning server - Google Patents
Wireless network positioning method, access point and positioning server Download PDFInfo
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- CN104507160A CN104507160A CN201410782194.5A CN201410782194A CN104507160A CN 104507160 A CN104507160 A CN 104507160A CN 201410782194 A CN201410782194 A CN 201410782194A CN 104507160 A CN104507160 A CN 104507160A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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Abstract
The invention provides a wireless network positioning method, an access point and a positioning server. The wireless network positioning method comprises the following steps: the access point broadcasts Beacon signals, receives association request signals sent by receiving terminal equipment, performs power detection on the association request signals received in all antenna directions of an antenna array, obtains the strength of the association request signals received in all antenna directions of the antenna array, selects an optimal antenna from the antenna array according to the strength of the association request signals received in all antenna direction, computes the path loss between the terminal equipment and the access point according to the strength of the association request signals sent by the optimal antenna and the strength of the association request signals sent by the terminal equipment, determines the first include angle between the mounting direction of the access point and the direction of the optimal antenna, and further determine the position of the terminal equipment, thereby solving the problems of high cost and high complexity in implementation of an indoor positioning mode.
Description
Technical field
The embodiment of the present invention relates to communication technical field, particularly relates to a kind of wireless network localization method, access point and location-server.
Background technology
Flourish along with mobile Internet, wherein, because location Based service can provide current positional information for user, makes various location Based service in great demand.
In indoor positioning, mainly use WLAN (Wireless Local AreaNetworks is called for short WLAN) as one of main technological means at present.It is relatively single that WLAN is positioned at technically realization, mainly indicates (Received Signal StrengthIndicator is called for short RSSI) to realize by the intensity of Received signal strength, at least dispose 3 access points and could realize indoor positioning.
But this locate mode not only cost is high, and the indoor environment had, if dispose 3 access points, be easy to mutual interference between 3 access points, before another External System comes into operation, all need to carry out surveying work to the position of 3 access points.Therefore how to reduce the cost that wireless location system is disposed, reduction implementation complexity becomes an important job.
Summary of the invention
The embodiment of the present invention provides a kind of wireless network localization method, access point and location-server, solves in prior art, and not only cost is high at least to need deployment 3 access points to cause indoor positioning mode, and realizes complicated problem.
First aspect, the embodiment of the present invention provides a kind of wireless network localization method, comprising:
Access point broadcast beacon Beacon signal, comprises the medium access control MAC Address of described access point in described Beacon signal;
The association request signal that described access point receiving terminal apparatus sends according to the described Beacon signal received, comprises the intensity of the MAC Address of described terminal equipment, the MAC Address of described access point and the association request signal of described terminal equipment transmission in described association request signal;
Described access point carries out power detection to the described association request signal that each antenna direction of aerial array receives, and obtains the intensity of the described association request signal that each antenna direction of described aerial array receives;
Described access point, according to the intensity of the described association request signal that each antenna direction of described aerial array receives, selects optimal antenna from described aerial array;
The intensity of the association request signal that the intensity of the described association request signal that described access point receives according to described optimal antenna and described terminal equipment send, calculates the path loss of described association request signal between described terminal equipment and described access point;
Described access point determines the first angle between the installation direction of described access point and the direction of described optimal antenna;
According to the positional information of described access point, described path loss and described first angle, described access point determines that described path loss and described first angle are sent to location-server by the positional information of described terminal equipment or described access point, determine the positional information of described terminal equipment to make described location-server according to the positional information of described access point, described path loss and described first angle.
In an embodiment of above-mentioned wireless network localization method, optionally, described access point determines the first angle between the installation direction of described access point and the direction of described optimal antenna, comprising:
Described access point determines the second angle between the installation direction of described access point and the reference direction of setting;
Described access point determines the 3rd angle between the direction of described optimal antenna and the reference direction of described setting;
Described access point, according to described second angle and the 3rd angle, determines the first angle between the installation direction of described access point and the direction of described optimal antenna.
In an embodiment of above-mentioned wireless network localization method, optionally, the intensity of the described association request signal that each antenna direction of described access point according to described aerial array receives, after selecting optimal antenna, also comprises from described aerial array:
Described access point determines whether the intensity of the described association request signal that described optimal antenna receives changes;
If determine, the intensity of the described association request signal that described optimal antenna receives changes, then repeat the intensity of described access point according to the described association request signal that each antenna direction of described aerial array receives, from described aerial array, select the step of optimal antenna.
Second aspect, the embodiment of the present invention provides a kind of wireless network localization method, comprising:
Location-server receives path loss and first angle of access point transmission, described path loss is the intensity of the intensity of the association request signal that described access point receives according to the optimal antenna selected from aerial array and the described association request signal of terminal equipment transmission, the path loss of described association request signal between described terminal equipment and described access point calculated, described first angle is the first angle between the installation direction of described access point and the direction of described optimal antenna;
Described location-server, according to the positional information of described access point, described path loss and described first angle, determines the positional information of described terminal equipment.
In an embodiment of above-mentioned wireless network localization method, optionally, described location-server, according to the positional information of described access point, described path loss and described first angle, is determined the positional information of described terminal equipment, being comprised:
Described location-server, according to described path loss, determines the distance between described terminal equipment and described access point;
Described location-server is the first angle according to the positional information of described access point, Distance geometry between described terminal equipment and described access point, determines the positional information of described terminal equipment.
The third aspect, the embodiment of the present invention provides a kind of access point, comprising:
Transmitter, for broadcast beacon Beacon signal, comprises the medium access control MAC Address of access point in described Beacon signal;
Receiver, for the association request signal that receiving terminal apparatus sends according to the described Beacon signal received, in described association request signal, comprise the intensity of the MAC Address of described terminal equipment, the MAC Address of described access point and the association request signal of described terminal equipment transmission;
Processor, for carrying out power detection to the described association request signal that each antenna direction of aerial array receives, obtains the intensity of the described association request signal that each antenna direction of described aerial array receives; According to the intensity of the described association request signal that each antenna direction of described aerial array receives, from described aerial array, select optimal antenna; The intensity of described association request signal received according to described optimal antenna and the intensity of the association request signal of described terminal equipment transmission, calculate the path loss of described association request signal between described terminal equipment and described access point; Determine the first angle between the installation direction of described access point and the direction of described optimal antenna;
Described transmitter, also determine the positional information of described terminal equipment for the positional information according to described access point, described path loss and described first angle or described path loss and described first angle are sent to location-server, determining the positional information of described terminal equipment to make described location-server according to the positional information of described access point, described path loss and described first angle.
In an embodiment of above-mentioned access point, optionally, described processor, specifically for determining the second angle between the installation direction of described access point and the reference direction of setting; Determine the 3rd angle between the direction of described optimal antenna and the reference direction of described setting; According to described second angle and the 3rd angle, determine the first angle between the installation direction of described access point and the direction of described optimal antenna.
In an embodiment of above-mentioned access point, optionally, also comprise:
In the intensity of the described described association request signal according to each antenna direction of described aerial array receives, select optimal antenna from described aerial array after, described processor, also for determining whether the intensity of the described association request signal that described optimal antenna receives changes; If determine, the intensity of the described association request signal that described optimal antenna receives changes, then perform the intensity of the described described association request signal according to each antenna direction of described aerial array receives, from described aerial array, select optimal antenna.
Fourth aspect, the embodiment of the present invention provides a kind of location-server, comprising:
Receiver, for receiving path loss and first angle of access point transmission, described path loss is the intensity of the intensity of the association request signal that described access point receives according to the optimal antenna selected from aerial array and the described association request signal of terminal equipment transmission, the path loss of described association request signal between described terminal equipment and described access point calculated, described first angle is the first angle between the installation direction of described access point and the direction of described optimal antenna;
Processor, for the positional information according to described access point, described path loss and described first angle, determines the positional information of described terminal equipment.
In an embodiment of above-mentioned location-server, optionally, described processor, specifically for according to described path loss, determines the distance between described terminal equipment and described access point; The first angle according to the positional information of described access point, Distance geometry between described terminal equipment and described access point, determines the positional information of described terminal equipment.
Embodiment of the present invention wireless network localization method, access point and location-server, by access point broadcast Beacon signal, the association request signal that receiving terminal apparatus sends according to the Beacon signal received, power detection is carried out to the association request signal that each antenna direction of aerial array receives, obtain the intensity of the association request signal that each antenna direction of aerial array receives, according to the intensity of the association request signal that each antenna direction of aerial array receives, optimal antenna is selected from aerial array, the intensity of association request signal received according to optimal antenna and the intensity of the association request signal of terminal equipment transmission, the path loss of compute associations request signal between terminal equipment and access point, determine the first angle between the installation direction of access point and the direction of optimal antenna, and according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment or path loss and the first angle are sent to location-server, to make location-server according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment.Owing to only needing deployment access point namely can the positional information of positioning terminal equipment, owing to only needing deployment access point namely can the positional information of positioning terminal equipment, therefore solve in prior art at least need deployment 3 access points to cause indoor positioning mode not only cost is high, and realize complicated problem.
Accompanying drawing explanation
The flow chart of the wireless network localization method that Fig. 1 provides for the embodiment of the present invention one;
The flow chart of the wireless network localization method that Fig. 2 provides for the embodiment of the present invention two;
The flow chart of the wireless network localization method that Fig. 3 provides for the embodiment of the present invention three;
The structural representation of the access point 400 that Fig. 4 provides for the embodiment of the present invention four;
The structural representation of the location-server 500 that Fig. 5 provides for the embodiment of the present invention five.
Embodiment
The flow chart of the wireless network localization method that Fig. 1 provides for the embodiment of the present invention one.The method of the present embodiment is applicable to only to dispose an access point, namely can realize situation about positioning terminal equipment.The method of the present embodiment comprises the steps:
S110, access point broadcast Beacon signal, comprises the Media Access Control address of access point in Beacon signal.
Medium access control (Medium Access Control is comprised in the Beacon signal of access point broadcast, be called for short MAC) address, send association request signal according to the MAC Address comprised in Beacon signal to this access point to make the terminal equipment receiving Beacon signal.
The association request signal that S120, access point receiving terminal apparatus send according to the Beacon signal received, comprises the intensity of the association request signal that the MAC Address of terminal equipment, the MAC Address of access point and terminal equipment send in association request signal.
S130, access point carry out power detection to the association request signal that each antenna direction of aerial array receives, and obtain the intensity of the association request signal that each antenna direction of aerial array receives.
Access point can built-in intelligence antenna, smart antenna is also known as adaptive antenna array, variable antenna array, multiple antennas, access point, by carrying out power detection to the association request signal that each antenna direction of aerial array receives, obtains the intensity of the association request signal that each antenna direction of aerial array receives.
S140, access point, according to the intensity of the association request signal that each antenna direction of aerial array receives, select optimal antenna from aerial array.
The optimal antenna antenna that also namely the intensity of the association request signal of finger receipts is the strongest, is defined as optimal antenna by antenna the strongest for the intensity of the association request signal of reception.
The intensity of the association request signal that the intensity of the association request signal that S150, access point receive according to optimal antenna and terminal equipment send, the path loss of compute associations request signal between terminal equipment and access point.
The path loss of compute associations request signal between terminal equipment and access point, also the i.e. propagation loss of compute associations request signal between terminal equipment and access point, the difference of the intensity of the association request signal that the intensity of the association request signal that terminal equipment sends and optimal antenna receive is the path loss of association request signal between terminal equipment and access point.
The first angle between the installation direction of S160, access point determination access point and the direction of optimal antenna.
After installation access point, the installation direction of access point can be obtained by measuring, thus the first angle can determining between the installation direction of access point and the direction of optimal antenna according to the direction of the installation direction of access point and optimal antenna.
Path loss and the first angle are sent to location-server according to the positional information of the positional information of access point, path loss and the first angle determination terminal equipment or access point by S170, access point, to make location-server according to the positional information of the positional information of access point, path loss and the first angle determination terminal equipment.
After installation access point, the positional information of access point can be measured by locator, and the positional information of the access point of measurement is uploaded to access point or location-server, and locator can be laser range finder.
Concrete, by access point broadcast Beacon signal, the association request signal that receiving terminal apparatus sends according to the Beacon signal received, power detection is carried out to the association request signal that each antenna direction of aerial array receives, obtain the intensity of the association request signal that each antenna direction of aerial array receives, according to the intensity of the association request signal that each antenna direction of aerial array receives, optimal antenna is selected from aerial array, the intensity of association request signal received according to optimal antenna and the intensity of the association request signal of terminal equipment transmission, the path loss of compute associations request signal between terminal equipment and access point, determine the first angle between the installation direction of access point and the direction of optimal antenna, and according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment or path loss and the first angle are sent to location-server, to make location-server according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment.Owing to only needing deployment access point namely can the positional information of positioning terminal equipment, avoid and dispose the problem that multiple access point easily forms interference in the confined space of indoor.
The wireless network localization method that the present embodiment provides, by access point broadcast Beacon signal, the association request signal that receiving terminal apparatus sends according to the Beacon signal received, power detection is carried out to the association request signal that each antenna direction of aerial array receives, obtain the intensity of the association request signal that each antenna direction of aerial array receives, according to the intensity of the association request signal that each antenna direction of aerial array receives, optimal antenna is selected from aerial array, the intensity of association request signal received according to optimal antenna and the intensity of the association request signal of terminal equipment transmission, the path loss of compute associations request signal between terminal equipment and access point, determine the first angle between the installation direction of access point and the direction of optimal antenna, and according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment or path loss and the first angle are sent to location-server, to make location-server according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment.Owing to only needing deployment access point namely can the positional information of positioning terminal equipment, therefore solve in prior art at least need deployment 3 access points to cause indoor positioning mode not only cost is high, and realize complicated problem.
The flow chart of the wireless network localization method that Fig. 2 provides for the embodiment of the present invention two.The method of the present embodiment is applicable to only to dispose an access point, namely can realize situation about positioning terminal equipment.The method of the present embodiment comprises the steps:
S210, location-server receive path loss and first angle of access point transmission, path loss is the intensity of the intensity of the association request signal that access point receives according to the optimal antenna selected from aerial array and the association request signal of terminal equipment transmission, the path loss of association request signal between terminal equipment and access point calculated, the first angle is the first angle between the installation direction of access point and the direction of optimal antenna.
S220, location-server, according to the positional information of access point, path loss and the first angle, determine the positional information of terminal equipment.
After installation access point, the positional information of access point can be measured by locator, and the positional information of the access point of measurement is uploaded to location-server, and locator can be laser range finder.
Concrete, receive by location-server the path loss and the first angle that access point sends, according to the positional information of access point, path loss and the first angle, determine the positional information of terminal equipment.
The wireless network localization method that the present embodiment provides, path loss and first angle of access point transmission is received by location-server, according to the positional information of access point, path loss and the first angle, determine the positional information of terminal equipment, owing to only needing deployment access point namely can the positional information of positioning terminal equipment, therefore solve in prior art at least need deployment 3 access points to cause indoor positioning mode not only cost is high, and realize complicated problem.
For describing in detail to embodiment of the method shown in Fig. 1,2, introduce the overall procedure of wireless network localization method at this composition graphs 3.The flow chart of the wireless network localization method that Fig. 3 provides for the embodiment of the present invention three.With reference to Fig. 3, the method for the present embodiment can comprise:
S301, access point broadcast beacon Beacon signal, comprise the MAC Address of access point in Beacon signal.
The association request signal that S302, access point receiving terminal apparatus send according to the Beacon signal received, comprises the intensity of the association request signal that the MAC Address of terminal equipment, the MAC Address of access point and terminal equipment send in association request signal.
S303, access point carry out power detection to the association request signal that each antenna direction of aerial array receives, and obtain the intensity of the association request signal that each antenna direction of aerial array receives.
S304, access point, according to the intensity of the association request signal that each antenna direction of aerial array receives, select optimal antenna from aerial array.
The intensity of the association request signal that the intensity of the association request signal that S305, access point receive according to optimal antenna and terminal equipment send, the path loss of compute associations request signal between terminal equipment and access point.
The first angle between the installation direction of S306, access point determination access point and the direction of optimal antenna.
For example, the first angle between the installation direction of access point determination access point and the direction of optimal antenna can realize in the following way:
The second angle between the installation direction of access point determination access point and the reference direction of setting; The 3rd angle between the direction of access point determination optimal antenna and the reference direction of setting; Access point, according to the second angle and the 3rd angle, determines the first angle between the installation direction of access point and the direction of optimal antenna.
Path loss and the first angle are sent to location-server by S307, access point.
S308, location-server receive path loss and first angle of access point transmission.
S390, location-server, according to path loss, determine the distance between terminal equipment and access point.
S310, location-server, according to the positional information of access point, Distance geometry first angle between terminal equipment and access point, determine the positional information of terminal equipment.
If the intensity of the association request signal that the optimal antenna determined in S304 receives changes, just think that the position of terminal equipment there occurs change, so need to re-start to determine optimal antenna, repeat S304, again the position of terminal equipment is positioned.
The wireless network localization method that the present embodiment provides, path loss and first angle of access point transmission is received by location-server, according to path loss, determine the distance between terminal equipment and access point, according to the positional information of access point, Distance geometry first angle between terminal equipment and access point, determine the positional information of terminal equipment, owing to only needing deployment access point namely can the positional information of positioning terminal equipment, therefore solve in prior art at least need deployment 3 access points to cause indoor positioning mode not only cost is high, and realize complicated problem.
The structural representation of the access point 400 that Fig. 4 provides for the embodiment of the present invention four.The access point that the present embodiment provides may be used for performing the technical scheme of embodiment of the method as shown in Figure 1, and with reference to Fig. 4, this access point comprises: transmitter 410, receiver 420 and processor 430.
Transmitter 410, for broadcast beacon Beacon signal, comprises the medium access control MAC Address of access point in Beacon signal; The association request signal that receiver 420 sends according to the Beacon signal received for receiving terminal apparatus, comprises the intensity of the association request signal that the MAC Address of terminal equipment, the MAC Address of access point and terminal equipment send in association request signal; Processor 430, for carrying out power detection to the association request signal that each antenna direction of aerial array receives, obtains the intensity of the association request signal that each antenna direction of aerial array receives; According to the intensity of the association request signal that each antenna direction of aerial array receives, from aerial array, select optimal antenna; The intensity of association request signal received according to optimal antenna and the intensity of the association request signal of terminal equipment transmission, the path loss of compute associations request signal between terminal equipment and access point; Determine the first angle between the installation direction of access point and the direction of optimal antenna; Transmitter 410 also for the positional information according to access point, path loss and the first angle determination terminal equipment positional information or path loss and the first angle are sent to location-server, to make location-server according to the positional information of the positional information of access point, path loss and the first angle determination terminal equipment.
The access point that the present embodiment provides, by broadcast Beacon signal, the association request signal that receiving terminal apparatus sends according to the Beacon signal received, power detection is carried out to the association request signal that each antenna direction of aerial array receives, obtain the intensity of the association request signal that each antenna direction of aerial array receives, according to the intensity of the association request signal that each antenna direction of aerial array receives, optimal antenna is selected from aerial array, the intensity of association request signal received according to optimal antenna and the intensity of the association request signal of terminal equipment transmission, the path loss of compute associations request signal between terminal equipment and access point, determine the first angle between the installation direction of access point and the direction of optimal antenna, and according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment or path loss and the first angle are sent to location-server, to make location-server according to the positional information of access point, the positional information of path loss and the first angle determination terminal equipment.Owing to only needing deployment access point namely can the positional information of positioning terminal equipment, therefore solve in prior art at least need deployment 3 access points to cause indoor positioning mode not only cost is high, and realize complicated problem.
Further, processor 430, specifically for determining the second angle between the installation direction of access point and the reference direction of setting; Determine the 3rd angle between the direction of optimal antenna and the reference direction of setting; According to the second angle and the 3rd angle, determine the first angle between the installation direction of access point and the direction of optimal antenna.
Further, also comprise:
In the intensity according to the association request signal that each antenna direction of aerial array receives, select optimal antenna from aerial array after, processor 430, also for determining whether the intensity of the association request signal that optimal antenna receives changes; If determine, the intensity of the association request signal that optimal antenna receives changes, then perform the intensity of the association request signal that each antenna direction according to aerial array receives, from aerial array, select optimal antenna.
The structural representation of the location-server 500 that Fig. 5 provides for the embodiment of the present invention five.The location-server that the present embodiment provides may be used for performing the technical scheme of embodiment of the method as shown in Figure 2, and with reference to Fig. 5, this location-server comprises: receiver 510 and processor 520.
Receiver 510 is for receiving path loss and first angle of access point transmission, path loss is the intensity of the intensity of the association request signal that access point receives according to the optimal antenna selected from aerial array and the association request signal of terminal equipment transmission, the path loss of association request signal between terminal equipment and access point calculated, the first angle is the first angle between the installation direction of access point and the direction of optimal antenna; Processor 520, for the positional information according to access point, path loss and the first angle, determines the positional information of terminal equipment.
The location-server that the present embodiment provides, by receiving path loss and first angle of access point transmission, according to path loss, determine the distance between terminal equipment and access point, according to the positional information of access point, Distance geometry first angle between terminal equipment and access point, determine the positional information of terminal equipment, owing to only needing deployment access point namely can the positional information of positioning terminal equipment, therefore solve in prior art at least need deployment 3 access points to cause indoor positioning mode not only cost is high, and realize complicated problem.
Further, processor 520, specifically for according to path loss, determines the distance between terminal equipment and access point; According to the positional information of access point, Distance geometry first angle between terminal equipment and access point, determine the positional information of terminal equipment.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a wireless network localization method, is characterized in that, comprising:
Access point broadcast beacon Beacon signal, comprises the medium access control MAC Address of described access point in described Beacon signal;
The association request signal that described access point receiving terminal apparatus sends according to the described Beacon signal received, comprises the intensity of the MAC Address of described terminal equipment, the MAC Address of described access point and the association request signal of described terminal equipment transmission in described association request signal;
Described access point carries out power detection to the described association request signal that each antenna direction of aerial array receives, and obtains the intensity of the described association request signal that each antenna direction of described aerial array receives;
Described access point, according to the intensity of the described association request signal that each antenna direction of described aerial array receives, selects optimal antenna from described aerial array;
The intensity of the association request signal that the intensity of the described association request signal that described access point receives according to described optimal antenna and described terminal equipment send, calculates the path loss of described association request signal between described terminal equipment and described access point;
Described access point determines the first angle between the installation direction of described access point and the direction of described optimal antenna;
According to the positional information of described access point, described path loss and described first angle, described access point determines that described path loss and described first angle are sent to location-server by the positional information of described terminal equipment or described access point, determine the positional information of described terminal equipment to make described location-server according to the positional information of described access point, described path loss and described first angle.
2. method according to claim 1, is characterized in that, described access point determines the first angle between the installation direction of described access point and the direction of described optimal antenna, comprising:
Described access point determines the second angle between the installation direction of described access point and the reference direction of setting;
Described access point determines the 3rd angle between the direction of described optimal antenna and the reference direction of described setting;
Described access point, according to described second angle and the 3rd angle, determines the first angle between the installation direction of described access point and the direction of described optimal antenna.
3. method according to claim 1 and 2, is characterized in that, the intensity of the described association request signal that each antenna direction of described access point according to described aerial array receives, and after selecting optimal antenna, also comprises from described aerial array:
Described access point determines whether the intensity of the described association request signal that described optimal antenna receives changes;
If determine, the intensity of the described association request signal that described optimal antenna receives changes, then repeat the intensity of described access point according to the described association request signal that each antenna direction of described aerial array receives, from described aerial array, select the step of optimal antenna.
4. a wireless network localization method, is characterized in that, comprising:
Location-server receives path loss and first angle of access point transmission, described path loss is the intensity of the intensity of the association request signal that described access point receives according to the optimal antenna selected from aerial array and the described association request signal of terminal equipment transmission, the path loss of described association request signal between described terminal equipment and described access point calculated, described first angle is the first angle between the installation direction of described access point and the direction of described optimal antenna;
Described location-server, according to the positional information of described access point, described path loss and described first angle, determines the positional information of described terminal equipment.
5. method according to claim 4, is characterized in that, described location-server, according to the positional information of described access point, described path loss and described first angle, is determined the positional information of described terminal equipment, being comprised:
Described location-server, according to described path loss, determines the distance between described terminal equipment and described access point;
Described location-server is the first angle according to the positional information of described access point, Distance geometry between described terminal equipment and described access point, determines the positional information of described terminal equipment.
6. an access point, is characterized in that, comprising:
Transmitter, for broadcast beacon Beacon signal, comprises the medium access control MAC Address of access point in described Beacon signal;
Receiver, for the association request signal that receiving terminal apparatus sends according to the described Beacon signal received, in described association request signal, comprise the intensity of the MAC Address of described terminal equipment, the MAC Address of described access point and the association request signal of described terminal equipment transmission;
Processor, for carrying out power detection to the described association request signal that each antenna direction of aerial array receives, obtains the intensity of the described association request signal that each antenna direction of described aerial array receives; According to the intensity of the described association request signal that each antenna direction of described aerial array receives, from described aerial array, select optimal antenna; The intensity of described association request signal received according to described optimal antenna and the intensity of the association request signal of described terminal equipment transmission, calculate the path loss of described association request signal between described terminal equipment and described access point; Determine the first angle between the installation direction of described access point and the direction of described optimal antenna;
Described transmitter, also determine the positional information of described terminal equipment for the positional information according to described access point, described path loss and described first angle or described path loss and described first angle are sent to location-server, determining the positional information of described terminal equipment to make described location-server according to the positional information of described access point, described path loss and described first angle.
7. access point according to claim 6, is characterized in that, described processor, specifically for determining the second angle between the installation direction of described access point and the reference direction of setting; Determine the 3rd angle between the direction of described optimal antenna and the reference direction of described setting; According to described second angle and the 3rd angle, determine the first angle between the installation direction of described access point and the direction of described optimal antenna.
8. the access point according to claim 6 or 7, is characterized in that, also comprises:
In the intensity of the described described association request signal according to each antenna direction of described aerial array receives, select optimal antenna from described aerial array after, described processor, also for determining whether the intensity of the described association request signal that described optimal antenna receives changes; If determine, the intensity of the described association request signal that described optimal antenna receives changes, then perform the intensity of the described described association request signal according to each antenna direction of described aerial array receives, from described aerial array, select optimal antenna.
9. a location-server, is characterized in that, comprising:
Receiver, for receiving path loss and first angle of access point transmission, described path loss is the intensity of the intensity of the association request signal that described access point receives according to the optimal antenna selected from aerial array and the described association request signal of terminal equipment transmission, the path loss of described association request signal between described terminal equipment and described access point calculated, described first angle is the first angle between the installation direction of described access point and the direction of described optimal antenna;
Processor, for the positional information according to described access point, described path loss and described first angle, determines the positional information of described terminal equipment.
10. location-server according to claim 9, is characterized in that, described processor, specifically for according to described path loss, determines the distance between described terminal equipment and described access point; The first angle according to the positional information of described access point, Distance geometry between described terminal equipment and described access point, determines the positional information of described terminal equipment.
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| WO2021143650A1 (en) * | 2020-01-13 | 2021-07-22 | 华为技术有限公司 | Method for sharing data and electronic device |
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