WO2020020358A1

WO2020020358A1 - Method and apparatus for determining residence time duration, device, and storage medium

Info

Publication number: WO2020020358A1
Application number: PCT/CN2019/097953
Authority: WO
Inventors: 李聪; 史超; 赵尚宇
Original assignee: 杭州海康威视数字技术股份有限公司
Priority date: 2018-07-26
Filing date: 2019-07-26
Publication date: 2020-01-30
Also published as: CN110766102A; CN110766102B

Abstract

The present application provides a method and apparatus for determining a residence time duration, a device, and a storage medium. The method comprises: receiving a query request used for querying the residence time duration of a target RFID tag, wherein the query request comprises the identification information of the target RFID tag; querying, from a database according to the identification information, multiple pieces of RFID data of the target RFID tag in each collection area, wherein each piece of RFID data comprises a data collection time; determining a difference value between the data collection time of each two adjacent pieces of data in the multiple pieces of RFID data; and determining the residence time duration of the target RFID tag in each collection area according to the difference value.

Description

Method, device, equipment and storage medium for determining residence time

Technical field

The present application relates to the field of data processing technologies, and in particular, to a method, a device, a device, and a storage medium for determining a residence time.

Background technique

With the rapid development of RFID (Radio Frequency Identification) technology, in industries such as intelligent transportation and security, front-end collection equipment can collect hundreds of millions of RFID data every day. These RFID data are RFID tags carried by the carrier. Send to the acquisition device, the carrier includes a person or a moving object. Based on these RFID data, the residence time of the carrier in a certain place can be calculated in real time, which provides a basis for subsequent relevant regulatory measures (such as tracking the travel path of the carrier) of the carrier.

When the RFID tag enters the acquisition area of the acquisition device (for example, the magnetic field area of the acquisition device), the RFID tag can send the first frequency signal to the acquisition device through the transmitter device, and then the acquisition device times the first frequency signal and sends it to the statistics device. The second frequency signal is sent, so that the statistical device analyzes the timing information of the second frequency signal, thereby obtaining the residence time of the RFID tag in the above-mentioned collection area.

However, the above method can only calculate the residence time of the RFID tag in the acquisition area where it is currently located, and cannot accurately count the residence time of the RFID tag in the acquisition area of each acquisition device.

Summary of the Invention

In view of this, the present application provides a method, a device, a device, and a storage medium for determining the dwell time, which can accurately count the dwell time of the RFID tag in the collection area of each collection device.

According to the first aspect of the present application, a method for determining the length of stay is provided, including:

Receiving a query request for querying the dwell time of a target RFID tag, the query request including identification information of the target RFID tag;

Querying a plurality of pieces of RFID data of the target RFID tag in each collection area from the database according to the identification information, and each piece of RFID data includes a data collection time;

Determining a difference between data collection times of each two adjacent pieces of data in the plurality of pieces of RFID data;

The dwell time of the target RFID tag in the each collection area is determined according to the difference.

According to a second aspect of the present application, a device for determining residence time is provided, including:

The query request receiving module is configured to receive a query request for querying a dwell time of a target RFID tag, where the query request includes identification information of the target RFID tag;

A tag data query module, configured to query a plurality of pieces of RFID data of the target RFID tag in each collection area from a database according to the identification information, and each piece of RFID data includes a data collection time;

A time difference determining module, configured to determine a difference between data collection times of each two adjacent data in the plurality of RFID data;

The dwell time determining module is configured to determine a dwell time of the target RFID tag in each acquisition area according to the difference value.

According to a third aspect of the present application, an electronic device is provided. The electronic device includes:

processor;

Memory configured to store processor-executable instructions;

Wherein, the processor is configured to execute the method for determining a dwell duration described in the first aspect.

According to a fourth aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the program is processed by a processor, the method for determining the dwell time described in the first aspect is implemented.

The method, device, device and storage medium for determining the dwell time provided in this application receive a query request for querying the dwell time of a target RFID tag, and the query request includes identification information of the target RFID tag, and Querying a plurality of pieces of RFID data of the target RFID tag in each collection area from the database according to the identification information, each piece of RFID data including a data collection time, and then determining that among the plurality of pieces of RFID data, each adjacent The difference between the data collection time of the two data, and then the residence time of the target RFID tag in each collection area is determined according to the difference, and the target RFID tag can be determined at each of the multiple RFID data collection times. The dwell time of the collection area can accurately calculate the dwell time of multiple collection areas of an RFID tag, which is conducive to taking relevant monitoring measures for the target RFID tag carrier based on the dwell time to meet user needs.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flowchart of a method for determining a dwell time shown in an exemplary embodiment of the present application; FIG.

FIG. 2 is a flowchart illustrating how to determine a difference between data collection times of each two adjacent pieces of data in the multiple pieces of RFID data according to an exemplary embodiment of the present application;

FIG. 3 is a flowchart of a method for determining a dwell time period according to another exemplary embodiment of the present application; FIG.

4 is a flowchart illustrating how to transfer RFID data to be stored to a database for storage according to an exemplary embodiment of the present application;

5 is a flowchart illustrating how to query the RFID data of a target RFID tag from a database according to an exemplary embodiment of the present application;

FIG. 6 is a structural block diagram of a device for determining a dwell time shown in an exemplary embodiment of the present application; FIG.

FIG. 7 is a structural block diagram of a device for determining a dwell time, shown in still another exemplary embodiment of the present application; FIG.

Fig. 8 is a structural block diagram of an electronic device according to an exemplary embodiment of the present application.

detailed description

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of devices and methods consistent with certain aspects of the application as detailed in the appended claims.

The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at" or "when" or "in response to determination".

FIG. 1 is a flowchart of a method for determining a dwell time shown in an exemplary embodiment of the present application; this embodiment can be used for a server (for example, a server cluster or a server cluster composed of multiple servers), or Used for terminal equipment (such as mobile phones, tablets, PCs, etc.). As shown in Figure 1, the method includes the following steps:

S101: Receive a query request for querying the dwell time of a target RFID tag.

The query request includes identification information of the target RFID tag. In an embodiment, the identification information may include a number, a name, an ID (identifier), and the like, which is not limited in this embodiment.

In an embodiment, the server (or terminal device) may receive a query request sent by the user, and the query request may be used to query the residence time of the target RFID tag in the collection area of each collection device.

In an embodiment, the above-mentioned acquisition device may include an RFID-capable device, such as a fixed or handheld RFID tag reader.

In an embodiment, in addition to the identification information of the target RFID, the content of the above query request may be set by the developer according to actual business needs, such as the time range of the query or the minimum expected residence time. Etc. (This value can be used to filter data that the calculation result of the dwell time does not satisfy the minimum value), which is not limited in this embodiment.

S102: Query a plurality of pieces of RFID data of the target RFID tag in each collection area from the database according to the identification information.

In an embodiment, multiple pieces of RFID data of the target RFID tag in each collection area may be stored in a database in advance. For specific storage methods, refer to the embodiment shown in FIG. 3 below, which will not be described in detail here.

In an embodiment, after the server receives a query request for querying the dwell time of the target RFID tag, it can query the database of the target RFID tag in each collection area according to the identification information of the target RFID tag. RFID data.

In an embodiment, each piece of the RFID data may include identification information of a target RFID tag, identification information of a collection device to which the corresponding collection area belongs, and collection time of the piece of data.

For example, if the identification information of the target RFID tag is "123", the identification information of the collection device is "ABC", and the data collection time is "15:30:00, May 12, 2018", the The RFID data is "tag identification information:" 123 "; collection equipment identification information:" ABC "; collection time:" 1526110200000 ", where the collection time is stored in the form of a timestamp.

In an embodiment, when the target RFID tag is in a collection area of a collection device, the collection device may collect RFID data of the target RFID tag based on a preset time window. Taking the target RFID tag "123" as an example, if the target RFID tag is located in the acquisition area of the acquisition device "ABC" from 15:30:00 on May 12, 2018 to 15:40:00 on May 12, 2018, And the preset time window is 5 minutes, the collection device can collect multiple pieces of RFID data, and transmit the multiple pieces of RFID data to a database for storage.

In an embodiment, the storage manner of the above-mentioned RFID data can also refer to the embodiment shown in FIG. 3 below, which will not be described in detail here.

Based on this, the server can query the database for multiple pieces of RFID data of the target RFID tag in the collection area based on the identification information.

S103: Determine the difference between the data collection times of each two adjacent pieces of data in the plurality of pieces of RFID data.

In one embodiment, after the server queries the database for multiple pieces of RFID data of the target RFID tag in each collection area, it can calculate the data collection time of each adjacent two pieces of data in the multiple pieces of RFID data. Difference.

Taking the above-mentioned target RFID tag "123" as an example, multiple pieces of RFID data can be queried to determine the time when the target RFID tag "123" is in the acquisition area of the acquisition device "ABC" (that is, the acquisition time of the data is expressed in the form of a timestamp) As follows:

"1526110200000,1526110230000, ..., 1526110500000,1526110530000, ..., 1526110800000".

Based on this, the difference between the data collection time of each two adjacent data among the above multiple pieces of RFID data can be calculated.

S104: Determine the dwell time of the target electronic tag in each collection area according to the difference.

In one embodiment, the above-mentioned target RFID tag "123" is still taken as an example. After calculating the difference between the data collection times of each two adjacent data in the multiple pieces of RFID data, the adjacent timestamps can be accumulated. The difference and other methods calculate that the residence time of the target electronic tag "123" in the acquisition area of the acquisition device "ABC" is 600s, that is, 10 minutes. After step S104, the traveling path of the target RFID tag can be tracked according to the residence time of the target RFID tag in each collection area.

It is worth noting that the above forms of RFID data are only for illustrative purposes. In actual implementation, developers can set specific forms of RFID data according to actual business needs, which is not limited in this embodiment.

It can be known from the above description that, in this embodiment, by receiving a query request for querying the dwell time of a target RFID tag, the query request includes identification information of the target RFID tag, and queries from a database according to the identification information. Multiple pieces of RFID data of the target RFID tag in each collection area, each piece of RFID data including data collection time, and then determining a difference between the data collection times of each two adjacent data in the plurality of pieces of RFID data , And further determine the residence time of the target electronic tag in each collection area according to the difference value, which can accurately calculate the residence time of multiple collection areas of an RFID tag, which is beneficial to subsequent residence based It takes relevant regulatory measures on the carrier of the target RFID tag to meet user needs.

FIG. 2 is a flowchart illustrating how to determine a difference between data collection times of each two adjacent pieces of data in the multiple pieces of RFID data according to an exemplary embodiment of the present application; based on the foregoing embodiment, How to determine the difference between the data collection time of each two adjacent data among the multiple pieces of RFID data is taken as an example for example. As shown in FIG. 2, determining the difference between the data collection times of each two adjacent data among the multiple pieces of RFID data described in step S103 may include the following steps S201-S202:

S201: Sort the collection time of the multiple pieces of RFID data in each of the collection areas to obtain the collection time of the sorted pieces of RFID data.

In an embodiment, the collection time of multiple pieces of RFID data of each collection area obtained from the database may not be arranged in order. In order to quickly and accurately calculate the residence time of the target electronic tag in each collection area, The collection time of the plurality of RFID data of each of the collection areas may be sorted first to obtain the collection time of the sorted multiple pieces of RFID data.

In an embodiment, the collection time of the plurality of pieces of RFID data in each of the collection areas may be arranged in ascending or descending order, which is not limited in this embodiment.

S202: Calculate the difference between the collection times of two adjacent RFID data among the sorted collection times of the RFID data to form a difference set.

In an embodiment, if the collection time of the plurality of RFID data in each of the collection areas is sorted in ascending order, the difference between the two adjacent data collection times can be calculated, that is, the next data collection time. Subtract the value from the previous data acquisition time.

In another embodiment, if the collection times of the multiple pieces of RFID data in each of the collection areas are arranged in descending order, the difference between the collection times of the two adjacent RFID data may be calculated, that is, the previous one. Data acquisition time minus the value of the next data acquisition time.

Based on this, determining the residence time of the target electronic tag in each collection area according to the difference in step S104 may include:

The difference values in the difference set that are less than or equal to a preset time threshold are accumulated to obtain a residence time of the target electronic tag in each of the collection areas.

In one embodiment, after obtaining the difference between each two adjacent RFID data collection times, the difference between the difference values that is less than or equal to a preset time threshold may be accumulated to obtain the target electronic tag at The dwell time of each of the acquisition areas.

For example, if the sorted collection time of multiple pieces of RFID data is "1526110200000, 152611023000, 1526110270000, 1526110290000" and the preset time threshold is 120 seconds, the difference between the two adjacent RFID data collection times can be calculated It is "30 seconds, 40 seconds, 20 seconds", and it can be determined that these differences are less than a preset time threshold. By accumulating these differences, the residence time of the target electronic tag in the acquisition area is 90 seconds.

It is worth noting that if the difference between two adjacent RFID data collection times is greater than a preset time threshold, it can be determined that the target RFID tag has left the above-mentioned collection area halfway, and then entered the above-mentioned collection area again, resulting in before and after collection. The interval between the two RFID data collection times is too large (that is, the difference is greater than a preset time threshold). However, the time that the target RFID tag leaves the collection area should not be counted as the dwell time, so the difference between the two adjacent RFID data collection times is greater than the preset time threshold and does not meet the preset difference condition.

As can be seen from the above description, this embodiment sorts the collection time of the multiple pieces of RFID data in each of the collection areas to obtain the collection time of the sorted pieces of RFID data, and calculates the sorted pieces of RFID data. In the acquisition time, the difference between the acquisition times of two adjacent RFID data, and then the difference between the difference values that is less than or equal to a preset time threshold is accumulated to obtain the target electronic tag in each of the The residence time of the collection area can quickly and accurately determine the residence time of the target electronic tag in each collection area based on the data collection time of multiple pieces of RFID data.

FIG. 3 is a flowchart of a method for determining a dwell time shown in another exemplary embodiment of the present application; this embodiment may be used for a server (for example, a server cluster or a server cluster composed of multiple servers), and Can be used for terminal equipment (such as mobile phones, tablets, PCs, etc.). As shown in FIG. 1, the method includes steps S301-S308:

S301: Receive multiple pieces of RFID data of the target RFID tag.

In an embodiment, after the collection device collects multiple pieces of RFID data of the target RFID tag, the multiple pieces of data may be sent to the server.

In one embodiment, the above-mentioned acquisition device sends RFID data to the server in real time, or it can send RFID data to the server according to a preset period. The period can be set by the developer according to actual needs. This embodiment does not perform this. limited.

In one embodiment, the server can establish a communication connection with the acquisition device in a wired or wireless manner, and then can receive multiple pieces of RFID data sent by the acquisition device based on the established communication connection.

S302: Preprocess the received pieces of RFID data to obtain RFID data to be stored in a first preset format.

In one embodiment, the server can pre-process the received multiple pieces of RFID data in the following two ways:

First method: The server may first perform deduplication processing on the multiple pieces of RFID data, and then filter out interference data from the deduplicated RFID data.

The second method: the server may first filter out interference data from the multiple pieces of RFID data, and then perform deduplication processing on the filtered RFID data.

In an embodiment, the interference data may be set by a developer, and this embodiment is not limited thereto.

It is worth noting that in the actual implementation process, those skilled in the art can also add, delete or modify the above-mentioned preprocessing methods according to actual business needs, such as adding supplementary fields, setting field default values, etc. This embodiment does not address this. Limitation.

In an embodiment, the deduplication processing in the above two manners may include:

The server may combine multiple pieces of RFID data of the target RFID tag in the same collection area in a preset time window to obtain one piece of combined data. The combined data may include the collection time points of the multiple pieces of RFID data, and a new "collection time set" may be added to save the collection time points of multiple pieces of RFID data, and the same collection area corresponds to The same acquisition equipment.

In one embodiment, the foregoing preset time window can be set by a developer according to actual business requirements, such as 2 minutes, 5 minutes, and the like, which is not limited in this embodiment.

For example, if the preset time window is 5 minutes, and the multiple pieces of RFID data received by the server are:

Identification information of the label: "123"; identification information of the collection device: "ABC"; collection time: "1526110200000";

Identification information of the label: "123"; identification information of the collection device: "ABC"; collection time: "1526110201000";

Identification information of the label: "123"; identification information of the collection device: "ABC"; collection time: "1526110202000";

...

Identification information of the label: "123"; identification information of the collection device: "ABC"; collection time: "1526110499000";

Identification information of the label: "123"; identification information of the collection device: "ABC"; collection time: "1526110500000";

The above data are all RFID data of the same RFID tag collected by the same collection device, that is, the RFID data of the RFID tag "123" is collected by the collection device "ABC", so multiple pieces of RFID data in each preset time window can be combined A piece of data containing the collection time of each piece of RFID data is obtained, and then the combined data of the preset time window can be obtained, as shown below:

Identification information of the label: "123"; identification information of the collection device: "ABC"; collection time: "1526110200000"; collection time collection: "1526110200000, 1526110230000, ..., 1526110500000";

S303: Convert the RFID data to be stored from the first preset format to a second preset format.

In an embodiment, the above-mentioned first preset format may include a format that the RFID data sent by the acquisition device to the server has after deduplication processing.

In an embodiment, the second preset format may be a data format for storing in a database, and the data format may be set by a developer according to the characteristics of the database and the storage and query rules of the database. Not limited.

In one embodiment, after the RFID data to be stored is obtained, the RFID data to be stored may be converted from a first preset format to a second preset format for subsequent transmission and storage to a database.

S304: Transfer the RFID data to be stored in the second preset format to a database for storage.

In one embodiment, after the RFID data to be stored is converted from the first preset format to the second preset format, the RFID data to be stored in the second preset format may be transferred to a database for storage.

In an embodiment, the server can establish a communication connection with the database in a wired or wireless manner, and can further send the above-mentioned RFID data to be stored in the second preset format to the database based on the established communication connection.

S305: Receive a query request for querying the dwell time of the target RFID tag, where the query request includes identification information of the target RFID tag.

S306: Query a plurality of RFID data of the target RFID tag in each collection area from the database according to the identification information;

Wherein, each piece of RFID data includes a data collection time.

S307: Determine the difference between the data collection times of each two adjacent pieces of data in the plurality of pieces of RFID data.

S308: Determine the dwell time of the target electronic tag in each collection area according to the difference.

It is worth noting that if the received multiple pieces of RFID data are pre-processed by using the deduplication processing method shown in the above step S302, each RFID of the target RFID tag queried from the database in step S306 is processed. The data includes a data collection time set, and then in step S307, the target electronic tag may be determined in each of the collections according to a difference set of data collection times of each two adjacent data in the multiple pieces of RFID data that are sorted. The duration of the area.

For related explanations and descriptions of steps S305 to S308, reference may be made to the foregoing embodiments, and details are not described herein.

It can be known from the above description that in this embodiment, by receiving multiple pieces of RFID data of the target RFID tag, and preprocessing the received multiple pieces of RFID data, the RFID data to be stored in a first preset format is obtained, and then The RFID data to be stored is converted from the first preset format to the second preset format, and the RFID data to be stored in the second preset format is transferred to a database for storage, which can realize the storage of the target RFID tag in the database. The RFID data can be used to query multiple RFID data of the target RFID tag in each collection area based on the database, and calculate the residence time of the target electronic tag in each collection area.

Fig. 4 is a flow chart showing how to transfer RFID data to be stored to a database for storage according to an exemplary embodiment of the present application; on the basis of the above embodiment, this embodiment uses the database as a distributed storage system HBASE. The example in which the second preset format is a RowKey format is described as an example.

As shown in FIG. 4, transmitting the RFID data to be stored in the second preset format to a database for storage as described in step S304 may include the following steps S401-S402:

S401: Construct a plurality of regions for storing RFID data according to a preset region region design rule.

In one embodiment, since the distributed storage system HBASE is used to store RFID data, multiple regions for storing RFID data may be constructed according to a preset partition region design rule.

In an embodiment, the above region design rules can be set by a developer according to actual business needs and experience of balancing data load.

In one embodiment, multiple regions for storing RFID data may be constructed according to the year and month of collection time and a preset region number. For example, a fixed number of regions can be constructed in advance according to the year, month, and region number of the data collection time. When the region number is less than three digits, they are filled with 0. When the region number exceeds three digits, you can directly follow the year, month, and year The region number constructs a fixed number of regions in advance.

For example, you can create 20 regions for April 2018, where the Start Key of the first region is 201804 (000 is omitted by default) and the End Key is 201804001; the Start Key of the second region is 201804001 and the End Key is 201804002; and so on, until the Start key of the last region is 201804019 and End key is 201804020.

S402: Store the RFID data to be stored in the second preset format to a target region in the multiple regions that matches the RFID data to be stored.

In one embodiment, after constructing multiple regions for storing RFID data, a target region matching the RFID data to be stored may be determined from the multiple regions, and the RFID to be stored in the second preset format may be further described. The data is stored in the determined target region.

In an embodiment, the second preset format may be a RowKey format, and the format of the RowKey may be as shown in the following formula (1):

[yyyyMM] + [xxx] + [RFID_id] + [collect_time]; (1)

[YyyyMM] is the year and month of the collection time, [xxx] is the hash value of the identification information of the target RFID tag, [RFID_id] is the identification information of the target RFID tag, and [collect_time] is the corresponding time of the collection time Timestamp.

In an embodiment, the above [RFID_id] can be completed with 0 to M digits (for example, to 18 digits) to be compatible with ID naming rules of RFID tags manufactured by different manufacturers.

In an embodiment, the above [xxx] may be 0-completion to N-digits (eg, completion to 3 digits). In an embodiment, a corresponding hash rule may be set so that the calculated hash values [xxx] are between 000 and 019, thereby ensuring data load balance, that is, ensuring that RFID data is stored more uniformly in Among the 20 regions already constructed above.

By adopting the above-mentioned design rules, it can be ensured that the RFID data collected by the same RFID tag within the same month is stored in consecutive regions of the same region. In this way, when querying the RFID data of the RIFD tag, the entire data of the RFID tag can be quickly obtained through a scan operation, thereby improving the efficiency of subsequent calculation of the dwell time of the RFID tag.

It can be known from the foregoing description that in this embodiment, multiple regions for storing RFID data are constructed according to a preset design rule of a partitioned region, and the RFID data to be stored in the second preset format is stored in the multiple regions. The target region matching the RFID data to be stored can ensure that the RFID data collected by the same RFID tag in the same month is stored in a continuous region of the same region. In this way, when querying the RFID data of the RIFD tag, the entire data of the RFID tag can be quickly obtained through a scan operation, thereby improving the efficiency of subsequent calculation of the dwell time of the RFID tag.

FIG. 5 is a flowchart showing how to query the RFID data of a target RFID tag from a database according to an exemplary embodiment of the present application; based on the above embodiment, this embodiment uses the query request to further include a start time and The end time is taken as an example for illustrative purposes. As shown in FIG. 5, querying multiple pieces of RFID data of the target RFID tag in each collection area from the database as described in step S102 may include the following steps S501-S504:

S501: Generate a StartRowKey in the format of the RowKey according to the start time and the identification information.

In one embodiment, the StartRowKey is one of the information identifiers of the corresponding region, that is, the starting RowKey of the region.

In an embodiment, after receiving a query request for querying the dwell time of the target RFID tag, a StartRowKey with a RowKey format can be generated according to the start time in the query request and the identification information of the target RFID tag.

S502: Generate an EndRowKey in the format of the RowKey according to the end time and the identification information.

In one embodiment, the aforementioned EndRowKey is one of the information identifiers of the corresponding region, that is, the ending RowKey of the region.

In one embodiment, after receiving a query request for querying the dwell time of the target RFID tag, an EndRowKey with a RowKey format can be generated according to the end time in the query request and the identification information of the target RFID tag.

S503: Generate a scan request for sending to the HBASE according to the StartRowKey and the EndRowKey.

In an embodiment, after the StartRowKey and EndRowKey are generated, a scan request for sending to the HBASE may be generated according to the generated StartRowKey and EndRowKey.

S504: Receive multiple pieces of RFID data of the target RFID tag in each collection area returned by the HBASE based on the Scan request.

In an embodiment, after sending the generated Scan Scan request to the HBASE, multiple pieces of RFID data of the target RFID tag in each collection area returned by the HBASE based on the Scan request may be received.

It can be known from the foregoing description that this embodiment generates a StartRowKey in the format of the RowKey according to the start time and the identification information, and generates an EndRowKey in the format of the RowKey according to the end time and the identification information, and then Generating a Scan Scan request for sending to the HBASE according to the StartRowKey and EndRowKey, and then receiving multiple pieces of RFID data of the target RFID tag in each collection area returned by the HBASE based on the Scan request, The full amount of data of the RFID tag can be quickly obtained through a scan operation, thereby improving the efficiency of subsequent calculation of the residence time of the RFID tag.

FIG. 6 is a structural block diagram of an apparatus for determining a dwell time shown in an exemplary embodiment of the present application; as shown in FIG. 6, the apparatus includes: a query request receiving module 110, a tag data query module 120, and a time difference determination The module 130 and the dwell duration determination module 140.

The query request receiving module 110 is configured to receive a query request for querying a dwell time of a target RFID tag, where the query request includes identification information of the target RFID tag;

The tag data query module 120 is configured to query a plurality of pieces of RFID data of the target RFID tag in each collection area from the database according to the identification information, and each piece of the RFID data includes a data collection time;

A time difference determining module 130 is configured to determine a difference between data collection times of each two adjacent data in the multiple pieces of RFID data.

The dwell duration determination module 140 is configured to determine a dwell duration of the target electronic tag in each collection area according to the difference value.

FIG. 7 is a structural block diagram of a device for determining dwell time shown in still another exemplary embodiment of the present application; wherein, a query request receiving module 220, a tag data query module 230, a time difference determination module 240, and a dwell time determination The functions of the module 250 are the same as those of the query request receiving module 110, the tag data query module 120, the time difference determination module 130, and the dwell duration determination module 140 in the embodiment shown in FIG. 6 described above, and details are not described herein. As shown in FIG. 7, the time difference determination module 240 may include:

A collection time acquisition unit 241 is configured to sort the collection times of the multiple pieces of RFID data in each of the collection areas to obtain the collection times of the multiple pieces of RFID data after sorting;

The time difference calculation unit 242 is configured to calculate a difference between the acquisition times of two adjacent RFID data among the sorted multiple pieces of RFID data to form a difference set.

On this basis, the dwell duration determination module 250 may include:

The dwell duration determination unit 251 is configured to accumulate differences in the difference set that are less than or equal to a preset time threshold to obtain a dwell duration of the target electronic tag in each of the collection areas;

In an embodiment, the above device may further include: a tag data storage module 210;

The tag data storage module 210 may include:

A tag data receiving unit 211, configured to receive multiple pieces of RFID data of the target RFID tag;

A data pre-processing unit 212, configured to pre-process the received pieces of RFID data to obtain RFID data to be stored in a first preset format;

A data format conversion unit 213, configured to convert the RFID data to be stored from the first preset format to a second preset format;

The tag data storage unit 214 is configured to transfer the RFID data to be stored in the second preset format to a database for storage.

In an embodiment, the database may include a distributed storage system HBASE, and the second preset format may include a RowKey format;

The tag data storage unit 214 may also be used for:

Constructing multiple regions for storing RFID data according to preset regional region design rules;

Storing the RFID data to be stored in the second preset format to a target region of the plurality of regions that matches the RFID data to be stored.

In an embodiment, the tag data storage unit 214 may be further configured to:

A plurality of regions for storing RFID data are constructed according to the year and month of collection time and a preset region number.

In an embodiment, the format of the above-mentioned RowKey may be shown by the following formula (1):

[yyyyMM] + [xxx] + [RFID_id] + [collect_time]; (1)

In an embodiment, the query request may further include a start time and an end time;

The tag data query module 230 may include:

A start row key generating unit 231, configured to generate a StartRowKey in the format of the RowKey according to the start time and the identification information;

An end row key generating unit 232, configured to generate an EndRowKey in the format of the RowKey according to the end time and the identification information;

A scan request generating unit 233, configured to generate a scan request for sending to the HBASE according to the StartRowKey and the EndRowKey;

A tag data receiving unit 234 is configured to receive multiple pieces of RFID data of the target RFID tag in each collection area returned by the HBASE based on the Scan request.

In one embodiment, the data pre-processing unit 212 may be further configured to:

Performing deduplication processing on the plurality of pieces of RFID data, and filtering interference data from the deduplicated RFID data; or,

Interference data is filtered from the multiple pieces of RFID data, and deduplication processing is performed on the filtered RFID data.

Combining multiple pieces of RFID data of the target RFID tag in the same collection area in each preset time window to obtain a piece of combined data, where the combined data includes the collection time of the multiple pieces of RFID data, and the same collection The area corresponds to the same acquisition device.

The embodiment of the apparatus for determining the residence time provided in the present application may be applied to a network device. The device embodiments may be implemented by software, or by hardware or a combination of software and hardware. Taking software implementation as an example, as a device in a logical sense, it is formed by reading the corresponding computer program instructions in the non-volatile memory into the memory through the processor of the device in which it is located. In terms of hardware, as shown in FIG. 8, it is a hardware structure diagram of the device where the device for determining the residence time is located, except for the processor, network interface, memory, and non-volatile memory shown in FIG. 8. In addition, the device in which the device is located in the embodiment may also generally include other hardware, such as a forwarding chip responsible for processing packets. From the perspective of the hardware structure, the device may also be a distributed device, which may include multiple interface cards. In order to expand the message processing at the hardware level.

An embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the program is processed by a processor, the embodiments shown in FIG. 1 to FIG. 5 are implemented.

As for the device embodiment, since it basically corresponds to the method embodiment, the relevant part may refer to the description of the method embodiment. The device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, may be located One place, or it can be distributed across multiple network elements. Some or all of these modules can be selected according to actual needs to achieve the purpose of the solution of this application. Those of ordinary skill in the art can understand and implement without creative efforts.

Those skilled in the art will readily contemplate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application. These variations, uses, or adaptations follow the general principles of this application and include common general knowledge or conventional technical means in the technical field not disclosed in this application . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It should also be noted that the terms "including," "including," or any other variation thereof are intended to encompass non-exclusive inclusion, so that a process, method, product, or device that includes a series of elements includes not only those elements but also Other elements not explicitly listed, or those that are inherent to such a process, method, product, or device. Without more restrictions, the elements defined by the sentence "including a ..." do not exclude the existence of other identical elements in the process, method, product or equipment including the elements.

Claims

A method for determining dwell time, including:

Receiving a query request for querying the residence time of a target radio frequency identification RFID tag, the query request including identification information of the target RFID tag;

Querying a plurality of pieces of RFID data of the target RFID tag in each collection area from the database according to the identification information, and each piece of RFID data includes a data collection time;

Determining a difference between data collection times of each two adjacent pieces of data in the plurality of pieces of RFID data;

The dwell time of the target RFID tag in the each collection area is determined according to the difference.
The method according to claim 1, wherein the determining a difference in data collection time of each two adjacent data among the plurality of RFID data comprises:

Sorting the collection time of the plurality of RFID data of each of the collection areas to obtain the collection time of the sorted multiple pieces of RFID data;

Calculate the difference between the collection times of two adjacent RFID data in the collection time of the sorted multiple pieces of RFID data to form a difference set;

The determining the residence time of the target RFID tag in each of the collection areas according to the difference includes:

The difference values in the difference set that are less than or equal to a preset time threshold are accumulated to obtain a dwell time of the target RFID tag in each of the collection areas.
The method according to claim 1, further comprising storing RFID data of the target RFID tag in the database according to the following steps:

Receiving a plurality of pieces of RFID data of the target RFID tag;

Preprocessing the received pieces of RFID data to obtain RFID data to be stored in a first preset format;

Converting the RFID data to be stored from the first preset format to a second preset format;

And transmitting the RFID data to be stored in the second preset format to a database for storage.
The method according to claim 3, wherein:

The database includes a distributed storage system HBASE,

The second preset format includes a format of RowKey;

The transmitting the RFID data to be stored in the second preset format to a database for storage includes:

Construct multiple partitions for storing RFID data according to preset partition design rules;

Storing the RFID data to be stored in the second preset format to a target partition of the plurality of partitions that matches the RFID data to be stored.
The method according to claim 4, wherein the constructing a plurality of partitions for storing RFID data according to a preset partition design rule comprises:

Construct multiple partitions for storing RFID data according to the year and month of collection time and the preset partition sequence number.
The method according to claim 3, wherein the preprocessing the received pieces of RFID data comprises:

Performing deduplication processing on the plurality of pieces of RFID data, and filtering interference data from the deduplicated RFID data; or,

Interference data is filtered from the multiple pieces of RFID data, and deduplication processing is performed on the filtered RFID data.
The method according to claim 6, wherein the deduplication processing comprises:

Combining multiple pieces of RFID data of the target RFID tag in the same collection area in each preset time window to obtain a piece of combined data, where the combined data includes the collection time of the multiple pieces of RFID data, and the same collection The area corresponds to the same acquisition device.
The method according to claim 4, wherein querying a plurality of pieces of RFID data of the target RFID tag in each of the collection areas from the database comprises:

Generating a StartRowKey in the format of the RowKey according to the start time included in the query request and the identification information;

Generating an EndRowKey in the format of the RowKey according to the end time included in the query request and the identification information;

Generating a scan request for sending to the HBASE according to the StartRowKey and the EndRowKey;

Receiving a plurality of pieces of RFID data of the target RFID tag in each of the collection areas returned by the HBASE based on the scan request.
The method according to claim 1, further comprising:

Tracking the travel path of the target RFID tag according to the residence time of the target RFID tag in each of the plurality of acquisition areas.
A device for determining dwell time includes:

The query request receiving module is configured to receive a query request for querying a dwell time of a target RFID tag, where the query request includes identification information of the target RFID tag;

A tag data query module, configured to query a plurality of pieces of RFID data of the target RFID tag in each collection area from a database according to the identification information, and each piece of RFID data includes a data collection time;

A time difference determining module, configured to determine a difference between data collection times of each two adjacent data in the plurality of RFID data;

The dwell time determining module is configured to determine a dwell time of the target RFID tag in each acquisition area according to the difference value.
The apparatus according to claim 10, wherein the time difference determination module comprises:

A collection time acquisition unit, configured to sort the collection time of the plurality of RFID data of each of the collection areas, to obtain the collection time of the plurality of RFID data after sorting;

A time difference calculation unit, configured to calculate a difference between the collection times of two adjacent RFID data among the sorted multiple pieces of RFID data to form a difference set;

The residency determination module includes:

The dwell duration determination unit is configured to accumulate differences in the difference set that are less than or equal to a preset time threshold to obtain a dwell duration of the target RFID tag in each of the collection areas.
The device according to claim 10, further comprising: a tag data storage module;

The tag data storage module includes:

A tag data receiving unit, configured to receive multiple pieces of RFID data of the target RFID tag;

A data preprocessing unit, configured to preprocess the received pieces of RFID data to obtain RFID data to be stored in a first preset format;

A data format conversion unit, configured to convert the RFID data to be stored from the first preset format to a second preset format;

The tag data storage unit is configured to transfer the RFID data to be stored in the second preset format to a database for storage.
The device according to claim 12, wherein:

The database includes a distributed storage system HBASE,

The second preset format includes a format of RowKey;

The tag data storage unit is further configured to:

Construct multiple partitions for storing RFID data according to preset partition design rules;

Storing the RFID data to be stored in the second preset format to a target partition of the plurality of partitions that matches the RFID data to be stored.
The device according to claim 13, wherein the tag data storage unit is further configured to:

Construct multiple partitions for storing RFID data according to the year and month of collection time and the preset partition sequence number.
The apparatus according to claim 12, wherein the data preprocessing unit is further configured to:

Performing deduplication processing on the plurality of pieces of RFID data, and filtering interference data from the deduplicated RFID data; or,

Interference data is filtered from the multiple pieces of RFID data, and deduplication processing is performed on the filtered RFID data.
The apparatus according to claim 15, wherein the data preprocessing unit is further configured to:

Combining multiple pieces of RFID data of the target RFID tag in the same collection area in each preset time window to obtain a piece of combined data, where the combined data includes the collection time of the multiple pieces of RFID data, and the same collection The area corresponds to the same acquisition device.
An electronic device includes:

processor;

Memory configured to store processor-executable instructions;

The processor is configured to execute the method according to any one of claims 1-9.
A computer-readable storage medium having stored thereon a computer program which, when processed by a processor, implements the method of any one of claims 1-9.