WO2019071773A1

WO2019071773A1 - Method for updating wireless signal space distribution characteristic base, and server and storage medium

Info

Publication number: WO2019071773A1
Application number: PCT/CN2017/114835
Authority: WO
Inventors: 黄兴鲁
Original assignee: 深圳数位传媒科技有限公司
Priority date: 2017-10-10
Filing date: 2017-12-06
Publication date: 2019-04-18
Also published as: CN107818142A

Abstract

Disclosed is a method for updating a wireless signal space distribution characteristic base. The method comprises: acquiring a target signal list of the spatial position where a terminal is currently located; searching for a wireless signal space distribution characteristic base according to the target signal list, so as to obtain an original signal list corresponding to the target signal list; and if the original signal list satisfies an updating condition, updating the original signal list according to the target signal list. Further disclosed are a server and a storage medium. The present invention can automatically update a wireless signal space distribution characteristic base and is high in efficiency and low in cost.

Description

Wireless signal spatial distribution feature library updating method, server and storage medium

Technical field

The invention relates to the field of wireless signal spatial distribution feature library, in particular to a wireless signal spatial distribution feature library updating method, a server and a storage medium.

Background technique

With the development of wireless communication technology, wireless routers, smart phones, intelligent air conditioners with networking functions, smart lights, smart power supplies, intelligent robots, AR/VR devices, PCs, tablets, and other terminal devices with wireless communication needs are everywhere. In various places, the limited space of people's lives is filled with a large number of wireless signals. The information point is composed of a spatial location and a list of wireless signals near the location. The number of information points is regularly distributed in the space, and these information points constitute a wireless signal spatial distribution feature library.

The wireless signal of each location is manually collected in a limited space, and a wireless signal spatial distribution feature library is constructed on this basis. In the past, after the wireless signal spatial distribution feature library was successfully constructed, if the wireless signal was changed, the wireless signal signature database could not be automatically notified, and the wireless signal signature database could not automatically sense the wireless signal change. To realize the synchronous update of the wireless signal of the wireless signal signature database after the wireless signal is changed, the wireless signal can only be manually re-collected and synchronized to the wireless signal signature database. The manual update method has the following disadvantages:

1. The acquisition cycle is long, and the changed wireless signal cannot be updated to the wireless signal signature database in time;

2. It is difficult to balance the space covered by the entire wireless signal signature database, which is easy to cause omissions;

3. The labor cost is high.

In summary, the manual update of the wireless signal signature database is inefficient and costly, and a complete and efficient automatic update method is needed instead of manual update.

Summary of the invention

The main object of the present invention is to provide a method for updating a wireless signal spatial distribution feature library, which aims to solve the technical problem that the wireless signal spatial distribution feature library cannot be automatically updated, the manual update efficiency is low, and the cost is high.

To achieve the above object, the present invention provides a wireless signal spatial distribution feature library update Method, the method comprising:

Obtaining a target signal list of a spatial location where the terminal is currently located;

Searching, according to the target signal list, a wireless signal spatial distribution feature library, and obtaining a list of original signals corresponding to the target signal list;

If the original signal list satisfies the update condition, the original signal list is updated according to the target signal list.

In addition, in order to achieve the above object, the present invention further provides a server, the server comprising: a memory, a processor, and a wireless signal spatial distribution feature library update program stored on the memory and operable on the processor, The wireless signal spatial distribution feature library update program is implemented by the processor to implement the steps as described above in the wireless signal spatial distribution feature library update method.

In addition, in order to achieve the above object, the present invention further provides a storage medium, where the wireless signal spatial distribution feature library update program is stored, and the wireless signal spatial distribution feature library update program is implemented by the processor. The steps described in the wireless signal spatial distribution feature library updating method described above.

In the embodiment of the present invention, the server automatically acquires the target signal list of the location collected by the terminal under certain conditions, which can replace the manual collection, avoid the low efficiency and high cost caused by the manual collection, improve the update efficiency and accuracy of the feature database, and reduce Cost; At the same time, because people use the terminal frequently, the terminal is widely distributed, and the number of terminals is large, the total amount of data collected by the terminal can be increased as soon as possible, so that server data analysis, such as positioning analysis, can be more accurate and provide better service. And searching for a wireless signal spatial distribution feature database according to the target signal list, obtaining a list of original signals corresponding to the target signal list, obtaining an update object, facilitating subsequent update; determining whether the original signal list satisfies an update condition, and updating the condition The setting may exclude certain contingency factors, and the feature library developer may set different update conditions according to actual conditions, so that the update of the feature library adapts to different requirements, and if the original signal list satisfies the update condition, according to the The target signal list updates the original signal list, The realization signature database is updated automatically.

DRAWINGS

1 is a server structure diagram of a hardware operating environment involved in an embodiment of the present invention. intention;

2 is a schematic flowchart of a first embodiment of a method for updating a wireless signal spatial distribution feature database according to the present invention;

3 is a schematic flowchart of a second embodiment of a method for updating a wireless signal spatial distribution feature library according to the present invention;

4 is a schematic flowchart diagram of a fourth embodiment of a method for updating a wireless signal spatial distribution feature database according to the present invention;

FIG. 5 is a schematic diagram showing the positional relationship between a wireless signal and a collection point in the fifth embodiment of the wireless signal spatial distribution feature database updating method of the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

Detailed ways

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, the use of suffixes such as "module", "component" or "unit" for indicating an element is merely an explanation for facilitating the present invention, and has no specific meaning per se. Therefore, "module", "component" or "unit" can be used in combination.

As shown in FIG. 1, FIG. 1 is a schematic structural diagram of a server for implementing various embodiments of the present invention.

The server may include a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to implement connection communication between these components. The user interface 1003 can include a display, an input unit such as a keyboard, a touch screen, a camera (including an AR/VR device), and the optional user interface 1003 can also include a standard wired interface, a wireless interface. The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface, a Bluetooth interface, a probe interface, a 3G/4G/5G network communication interface, etc.). The memory 1005 may be a high speed RAM memory or a non-volatile memory such as a disk memory. The memory 1005 can also optionally be a storage device independent of the aforementioned processor 1001.

Those skilled in the art can understand that the server structure shown in FIG. 1 does not constitute a pair. The definition of the server may include more or less components than those illustrated, or some components may be combined, or different component arrangements.

As shown in FIG. 1, the memory 1005 as a storage medium stores a wireless signal spatial distribution feature database update program, and the processor 1001 can call the wireless signal spatial distribution feature database update program in the memory 1005 to perform the following steps:

The step of obtaining the original signal list corresponding to the target signal list includes:

Obtaining, according to the target signal list and the original signal list, all abnormal signal records in the target signal list that are different from the original signal list;

Obtaining an occurrence frequency of each abnormal signal record in all the abnormal signal records;

Determining whether there is a standby abnormal signal record whose frequency is greater than a preset threshold;

If there is a standby abnormality signal record whose frequency is greater than a preset threshold, the original signal list satisfies the update condition.

The step of updating the original signal list according to the target signal list includes:

Obtaining the to-be-used abnormality signal recorded in the original signal list corresponding to the to-be-updated signal record, and replacing the to-be-updated signal record with the to-be-used abnormal signal record.

The step of obtaining the target signal list of the spatial location where the terminal is currently located includes:

Receiving a positioning request of the terminal, and performing the step of acquiring a target signal list of a spatial location where the terminal is currently located;

Acquiring, according to the wireless signal spatial distribution feature library, a target spatial location corresponding to the original signal list;

The target spatial location is sent to the terminal.

The step of searching for a wireless signal spatial distribution feature library according to the target signal list includes:

And if the original signal list corresponding to the target signal list is found, performing the step of obtaining a list of original signals corresponding to the target signal list;

If the original signal list corresponding to the target signal list is not found, a fault prompt message is output.

The step of not finding the original signal list corresponding to the target signal list includes:

Obtaining the latitude and longitude position information of the terminal, and determining whether the terminal is located in a recording range of the wireless signal spatial distribution feature database;

If the terminal is located in the recording range of the wireless signal spatial distribution feature database, storing the target signal list and the corresponding terminal latitude and longitude position information as a newly added signal record in the wireless signal spatial distribution feature database;

If the terminal is located outside the recording range of the wireless signal spatial distribution feature library, the step of outputting the fault prompt message is performed.

The step of searching for a wireless signal spatial distribution feature library according to the target signal list, and obtaining a list of original signals corresponding to the target signal list includes:

Obtaining, in the target signal list, all the positioning wireless signal identifiers for positioning, and acquiring the collection points in the coverage of the respective positioning wireless signal identification signals;

Obtaining a to-be-used collection point that overlaps the coverage of each of the positioning wireless signal identification signals, and acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point.

The step of acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point includes:

If there is only one in-use collection point, the original signal list corresponding to the target signal list is directly obtained according to the to-be-used collection point;

Obtaining, by the plurality of collection points to be used, a first signal strength mean value of all the positioning wireless signal identifiers received at each of the to-be-used collection points, and all the positioning wireless signal identifiers in the target signal list Second signal strength mean;

Comparing the first signal strength mean with a second signal strength mean;

Obtaining a target first signal strength mean value that is the smallest difference from the second signal strength mean value, determining a first inactive collection point corresponding to the target first signal strength mean value, and acquiring the target signal according to the first inactive collection point The list of original signals corresponding to the list.

Referring to FIG. 2, in the first embodiment of the method for updating a wireless signal spatial distribution feature database of the present invention, the method for updating a wireless signal spatial distribution feature database includes:

Step S10: Obtain a target signal list of a spatial location where the terminal is currently located;

The development of wireless communication technology has made wireless signals spread throughout people's physical living space. In the limited space, there are various wireless routers, smart phones, intelligent air conditioners with networking functions, smart lights, smart power supplies, intelligent robots, AR/VR devices, PCs, tablets, and other wireless broadcast nodes. Within, different spatial locations tend to have different characteristics of wireless signal distribution. In the traditional spatial distribution feature of manual collection/detection of wireless signals, professional location acquisition tools are used to perform wireless signal acquisition at various locations. After the wireless signal spatial distribution feature library (hereinafter referred to as the feature library) is established, the manual acquisition is performed by manual acquisition. The feature library update is not only inefficient, but also costly. With the increase of data volume and the pursuit of large amounts of data by the server, manual acquisition and update is more difficult to implement.

In the embodiment of the present invention, the terminal collects the wireless signal distribution feature of the location, or the wireless signal list of the location. The terminal in this embodiment refers to a terminal commonly used by people, such as a PC, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a personal digital assistant (PDA), a portable media player (PMP), and a navigation device. Devices, wearable devices, such as AR/VR devices with networking functions, smart bracelets, pedometers, etc., which are commonly used portable terminals. These devices often need to be connected to a wireless network to receive/transmit wireless signals. Because these devices are used frequently, they also come with wireless monitoring or collection modules, so they can be used to collect feature libraries. In addition, the terminal in this embodiment can also be a mobile terminal such as a smart speaker or an autonomous driving car, or a fixed terminal such as an Internet of Things device (such as a smart air conditioner with a networking function, a smart electric light, a smart power source), and the smart home is becoming a people. The equipment used for daily use is a fixed terminal, and the distribution range is wide and dense, and the detected wireless signal data is more stable and accurate.

According to the characteristics of the terminal, the collection rule of the terminal can be set. For Internet of Things devices in a limited space, they can be collected at a fixed interval and uploaded to the service library where the signature database is located. Server (hereinafter referred to as server); for mobile phones, computers, navigation devices, wearable devices, and other commonly used portable terminals, because they often move, their location is not necessarily in the feature library collection object - limited space, this A type of terminal can have multiple implementations for collecting wireless signals. For example, because the feature library is mainly applied to the location service, when the user uses the portable terminal to open the location service request, the server where the feature library is located may initiate a request for acquiring the wireless signal list to the portable terminal, or may be automatically sent by the portable terminal. A script or an application configuration file may be built in the portable terminal, so that the portable terminal performs signal list collection and transmission according to a transmission rule preset by a script or an application configuration file.

The target signal list in this embodiment refers to the current location of the terminal, the signal list to be sent to the server or is being requested to be sent by the server, and the target signal list is newly collected compared to the list of signals already stored in the feature library. Used to determine whether to update the signature database. The content included in the signal list is a wireless signal distribution feature of a certain location, specifically, a wireless signal identifier and a wireless signal strength, and the wireless signal generally has a unique identifier, such as a WIFI signal having a unique MAC address, and a wireless signal strength. A distance from the source of the aforementioned wireless signal identification can be characterized. Optionally, the signal list may further include a wireless signal category, such as a WIFI signal, a Bluetooth signal, a ZIGBEE signal, etc., and the signal list may further include a corresponding location.

Step S11, searching for a wireless signal spatial distribution feature database according to the target signal list, and obtaining a list of original signals corresponding to the target signal list;

After obtaining the target signal list of the location where the terminal is located, it is necessary to determine the original signal list stored in the feature library and the location of the terminal. In this embodiment, the target signal list and the original signal list are pointed to the same location (terminal Correspondence of location).

There are various implementations when determining the list of original signals corresponding to the target signal list. In an embodiment, the terminal sends location information such as latitude and longitude of the location to the server, and the server narrows the comparison range of the target signal list according to the received location information such as latitude and longitude, and then according to the wireless signal identifier and the wireless signal strength in the target signal list. The information is calculated according to the correlation algorithm, and the original signal list closest to the target signal list, that is, the original signal list corresponding to the target signal list is calculated.

In another embodiment, by first finding a list of stored signals in the feature library, first Determining a list of stored signals having the same wireless signal identifier as the target signal list, and determining a list of stored signals having the most identical wireless signal identifiers, the list of stored signals having the most identical wireless signal identifiers being corresponding to the target signal list The original signal list.

After determining the list of stored signals having the same wireless signal identifier as the target signal list, determining a plurality of stored signal lists having the largest number of identical wireless signal identifiers (or having the same number of identical wireless signal identifiers greater than a plurality of stored signal lists of a certain value), and determining a list of original signals corresponding to the target signal list from the plurality of stored signal lists according to the wireless signal strength.

In some embodiments, the possible location of the terminal may be determined first. If the signal feature is manually acquired at the collection point, the acquisition point closest to the terminal may be determined first, and then the original signal list may be determined according to the closest collection point.

Step S12: If the original signal list satisfies the update condition, the original signal list is updated according to the target signal list.

When the original signal list satisfies the update condition, the feature library needs to be updated, and the implementation manner of updating the original signal list according to the target signal list differs according to the update determination criteria.

In an optional implementation manner, when it is detected that the target signal list has a different signal record than the original signal list, it may be determined that the original signal list satisfies an update condition, and the feature database needs to be updated, and the target is The signal list replaces the original signal list or: updates the original signal list with different signal records; in an alternative embodiment, when detected, the different signal records of the target signal list are greater than the preset compared to the original signal list. The number of the original signal or the preset ratio may be determined that the original signal list satisfies the update condition, and the feature database needs to be updated to replace the original signal list with the target signal list; in an optional implementation manner, when detected, The target signal list has a different signal record than the original signal list, obtains different signal records, queries existing statistical data, and determines whether there are different signal records whose frequency is greater than the preset frequency, and if so, may determine the original signal The signal list satisfies the update condition, and the signature database needs to be updated, and the frequency of occurrence is greater than the preset frequency. No record, update the list to the original signal.

In this embodiment, the server automatically obtains (or automatically transmits) the target signal list of the location collected by the terminal under certain conditions, which can replace manual collection and avoid people. The low efficiency and high cost caused by the collection of the work, improve the update efficiency and accuracy of the feature database, and reduce the cost; at the same time, because people frequently use the terminal, the terminal is widely distributed, and the number of terminals is large, the total amount of data collected by the terminal can be as soon as possible The growth enables the server to perform data analysis, such as positioning analysis, which can be more accurate and provide better service; according to the target signal list, the wireless signal spatial distribution feature library is searched for, and the original signal corresponding to the target signal list is obtained. List, you can get the update object to facilitate subsequent updates; determine whether the original signal list meets the update condition, and through the setting of the update condition, you can exclude certain contingency factors, and the feature library developer can set different update conditions according to the actual situation. The update of the feature library is adapted to different requirements. If the original signal list satisfies the update condition, the original signal list is updated according to the target signal list, thereby implementing automatic update of the feature library.

Further, referring to FIG. 3, based on the first embodiment, in the second embodiment of the present invention, the step of obtaining the original signal list corresponding to the target signal list in step S11 includes:

Step S20, acquiring, according to the target signal list and the original signal list, all abnormal signal records in the target signal list that are different from the original signal list;

Comparing the target signal list with the original signal list to determine different wireless signal records of the target signal list with respect to the original signal list. In this embodiment, the different wireless signal records are recorded as abnormal signal records. The abnormal signal record includes various situations, such as an increased signal record (denoted as a new signal), a deleted signal record (denoted as a reduced signal), a signal strength, or a signal record with a change in signal name (denoted as a change signal). . It should be noted that, for the same signal (having the same wireless identifier), it is displayed multiple times in different target signal lists, and various situations may occur, such as the signal being added in a certain collected signal list, in another The signal list collected in one time is a change signal, and in the signal list collected again, the signal is reduced. The same signal in different situations is recorded with different abnormal signals, such as the signal as a new signal and the same signal as a reduced signal. Different abnormal signal records are counted separately when recording their frequency of occurrence. If a signal appears N times as a new signal, the signal may appear as a reduced signal for M/P/Y times.

Step S21: Obtain an appearance frequency of each abnormal signal record in the all abnormal signal records;

The server collects a large amount of data from a plurality of terminals, and after determining the abnormal signal record according to the target signal list and the original signal list, if an abnormal signal record occurs only once, in some embodiments, the abnormal signal may be updated according to the abnormal signal. a list of signals, but in more embodiments, the original signal list is updated according to the abnormal signal record after a certain number of abnormal signal records appear. The preset number of times is often greater than one time, and may be ten times or ten. More than five times. The preset number of times is set to eliminate the interference of occasional factors, because the wireless device in the limited space may be temporarily turned off due to some conditions, and will be turned back on after a period of time, or because the temporary blocking device is added, the terminal is located. The signal strength of the location is reduced, but then the blocking device will be removed, which can prevent the server from updating the original signal list according to the abnormal signal record caused by accidental factors, resulting in frequent updating of the feature database, which is disadvantageous for providing the positioning service and consuming a large amount of running and memory. Resources.

Step S22, determining whether there is an inactive abnormal signal record whose appearance frequency is greater than a preset threshold;

Step S23, if there is an inactive abnormal signal record whose appearance frequency is greater than a preset threshold, the original signal list satisfies an update condition;

In step S24, if there is no abnormality signal whose appearance frequency is greater than the preset threshold, the original signal list does not satisfy the update condition and is not updated.

In this embodiment, the preset number of times, that is, the frequency, is greater than a preset threshold, and the preset threshold may be set by the server by default. If the abnormal signal record whose frequency is greater than the preset threshold is present in the target signal list of the current location, the terminal may determine that the original signal list satisfies the update condition, and the original signal needs to be updated according to the target signal sequence. a list; if there is no abnormal signal record whose frequency is greater than a preset threshold, it may be determined that the original signal list does not satisfy the update condition and is not updated.

In this embodiment, by comparing the target signal list and the original signal list, all abnormal signal records of the target signal list relative to the original signal list are obtained, and the frequency of occurrence of each abnormal signal record is acquired, and when an abnormality occurs, the frequency is greater than the preset threshold. When the signal is determined, it is determined that the original signal list satisfies the update condition, and then the original signal list is updated, and the single abnormal signal is used as a comparison object instead of using the entire signal list as a comparison object, so that the feature library can be updated more accurately, and at the same time Setting a preset threshold, and the original signal list satisfies the update condition only when there is an abnormal signal record whose frequency is greater than the preset threshold. In addition to the interference of accidental factors, the update is more accurate, and unnecessary updates caused by accidental factors are avoided, resource waste is avoided, and the entire server/feature library is operated normally.

Further, the step of updating the original signal list according to the target signal list in step S12 includes:

Step S25: Acquire the to-be-used abnormality signal recorded in the original signal list corresponding to the to-be-updated signal record, and replace the to-be-updated signal record with the to-be-used abnormal signal record.

After determining that there is an abnormal signal record whose frequency of occurrence is greater than a preset threshold, the original signal list satisfies an update condition, and acquires the to-be-used abnormality signal recorded in the original signal list corresponding to the to-be-updated signal record, and uses the standby abnormal signal The record replaces the signal record to be updated. For example, there are signal records in the original signal list: wireless signal identification mac (A), wireless signal strength (-85dbm); target signal list: wireless signal identification mac (A), wireless signal strength (-70dbm). The signal record in the original signal list is directly updated to: wireless signal identification mac (A), wireless signal strength (-70dbm).

In this embodiment, by replacing the corresponding signal record in the original signal list with the abnormality signal whose appearance frequency is greater than the preset threshold value, the data to be updated can be updated more accurately with respect to replacing the original signal list with the entire target signal list.

Further, based on the first embodiment or the second embodiment, in the third embodiment of the present invention, the step S10 includes:

Step S30, receiving a positioning request of the terminal, and performing the step of acquiring the target signal list of the spatial location where the terminal is currently located;

The step of obtaining the original signal list corresponding to the target signal list in the step S11 includes:

Step S31, acquiring, according to the wireless signal spatial distribution feature library, a target spatial location corresponding to the original signal list;

Step S32, the target spatial location is sent to the terminal.

In this embodiment, the positioning application of the server or the feature library is combined with the automatic updating of the feature library, and the automatic updating of the feature library can be completed while providing the positioning service.

In one embodiment, the overall steps are as follows:

The terminal collects wireless signals at a certain spatial location and records a list of wireless signals, ie List of target signals;

The terminal initiates a positioning request, and sends the collected target signal list to a server that stores the spatial distribution feature of the wireless signal;

After receiving the target signal list sent by the terminal, the server compares with the signal in the feature library, and compares the signal list closest to the target signal list by the algorithm, that is, the original signal list and the target space associated with the original signal list. Position, the target space position is the positioning result, and the target space position is sent to the terminal, so that the positioning service can be realized;

At the same time, after receiving the target signal list sent by the terminal, the server performs step S11 (the relevant steps have been detailed in the above embodiments, and details are not described herein), and the feature library is updated.

When the terminal initiates the location request, the terminal provides the location service to the terminal while obtaining the target signal list collected by the terminal. Because the location service is a service that many terminals frequently request, the server can obtain a large amount of data, and because the location service originally It is necessary to obtain a list of signals at the location of the terminal, without adding any new requirements to the terminal, so that neither the hardware device nor the built-in program data is added to the terminal, and the existing resources can be fully utilized to realize the signal collection of the feature library. Simple and easy to promote.

Further, referring to FIG. 4 (step S11 is divided into step S111 and step S112), based on the first embodiment or the second embodiment or the third embodiment, in the fourth embodiment of the present invention, the steps The step of searching for the wireless signal spatial distribution feature library according to the target signal list in S11 includes:

Step S40, determining whether a list of original signals corresponding to the target signal list is found;

Step S41, if the original signal list corresponding to the target signal list is found, performing the step of obtaining the original signal list corresponding to the target signal list (ie, performing step S112);

Step S42: If the original signal list corresponding to the target signal list is not found, a fault prompt message is output.

After obtaining the target signal list of the current location of the terminal, the feature library is searched to find the original signal list corresponding to the target signal list.

When the wireless signal environment where the terminal is located is compared with the feature database, there is a big change. When the time is changed, the server has been unable to find the original signal list corresponding to the target signal list according to the algorithm. At this time, the returned search result is likely to be empty. In addition, due to an error in the terminal-related script or the application configuration file, although the terminal does not have the space recorded in the feature library, the signal list of the location is still transmitted. At this time, it is naturally impossible to find the target from the feature library. The list of original signals corresponding to the signal list.

Determining, according to the search result, whether the corresponding original signal list exists, and if the original signal list corresponding to the target signal list is found, directly performing the step of obtaining the original signal list corresponding to the target signal list (step S112); if the search result is empty or other prompt message, the original signal list corresponding to the target signal list does not exist, and a fault prompt message is output to remind the feature library developer to perform troubleshooting.

In this embodiment, by searching the feature database according to the target signal list, it is determined whether there is a list of original signals corresponding to the target signal list in the feature database, and if so, the subsequent judgment update operation is successfully performed, and if not, the fault prompt is output. Remind feature library developers to troubleshoot to prevent excessive meaningless data from occupying server running resources and network resources, improving service efficiency and feature library update efficiency, and affecting user experience.

Further, after the step of step S42, if the original signal list corresponding to the target signal list is not found, the step includes:

Step S43, acquiring latitude and longitude position information of the terminal, and determining whether the terminal is located in a recording range of the wireless signal spatial distribution feature database;

Step S44, if the terminal is located in the recording range of the wireless signal spatial distribution feature database, storing the target signal list and the corresponding terminal latitude and longitude position information as a newly added signal record in the wireless signal spatial distribution feature database;

Step S45, if the terminal is located outside the recording range of the wireless signal spatial distribution feature library, the step of outputting the fault prompt message is performed.

At the beginning of the feature database, due to the limitations of manual collection, there are many blind spots in the record range of the feature database. As people have higher and higher requirements for the accuracy of location services, the feature library needs to collect more data. , eliminate blind spots.

As described above, if it is determined according to the search result that the original signal list corresponding to the target signal list does not exist in the feature database, the possible reasons are: the wireless environment of the location where the terminal is located has a large change, and the terminal script program or application The configuration file has an error, and it may be Because the location of the terminal is exactly the blind spot of the feature library. Therefore, the cause is first determined, and then the next operation is performed according to the reason.

Through the latitude and longitude position information of the terminal, it can be determined whether the terminal is located in the recording range of the wireless signal spatial distribution feature library. For example, the recording range is a feature library of a large shopping mall, and the terminal can be judged according to the latitude and longitude position information of the terminal whether the terminal is in the shopping mall. . If the terminal is located in the record range of the feature library, but the original signal list corresponding to the target signal list does not exist in the stored signal list, the terminal may be located in the blind spot of the feature library, and the latitude and longitude position information of the terminal is required. The corresponding target signal list is stored in the signature database as a new signal record for later accurate positioning. If the terminal is located outside the recording range of the feature library, the terminal script program or the application configuration file has an error, and if manual adjustment is required, the step of outputting the failure prompt message is executed.

In this embodiment, by determining whether the terminal is located in the recording range of the feature library, and further determining the reason that the original signal list corresponding to the target signal list does not exist in the stored signal list, when the terminal may be located in the blind spot of the feature database recording range, The target signal list and the terminal latitude and longitude position information acquired from the terminal are stored in the feature database, which can eliminate blind spots in the feature library recording range, and also facilitate subsequent and more precise positioning of the latitude and longitude position by other manual or other means. It can provide more data in the scope of the signature database for the server, which is beneficial to the server to provide better service. At the same time, if there is a terminal script or application configuration file error, etc., the fault prompt message is output, and the signature database developer can Adjust related programs to prevent the server from receiving too much meaningless data and reduce resource waste.

Further, based on the first embodiment or the second embodiment or the third embodiment or the fourth embodiment, in the fifth embodiment of the present invention, the step S11 includes:

Step S50: Acquire all the positioning wireless signal identifiers used for positioning in the target signal list, and acquire the collection points in the coverage of the identification signals of the respective positioning wireless signals;

Step S51: Acquire a to-be-used collection point that has the most overlap with the coverage of each positioning wireless signal identification signal, and obtain an original signal list corresponding to the target signal list according to the to-be-used collection point.

When manually collecting wireless signals in each spatial location, each acquisition location is a collection point. Wireless signals have a certain transmission range, resulting in every wireless signal (hereinafter referred to as the wireless signal identification) will be transmitted to multiple collection points (as shown in Figure 5), that is, there are multiple collection points within the signal coverage of each wireless signal identification. Corresponding relationship between the wireless signal identifier and the collection point in the target signal list (all the collection points located within a certain wireless signal identification signal have a corresponding relationship with the wireless signal identifier, such as the wireless signal identifier X and the collection point in FIG. 5 a, b, c, d, e, f have a corresponding relationship), which can determine where the location of the terminal is located, because the location of the collection point is fixed and accurate, so the terminal can be determined according to the location of the collection point Location.

The positioning wireless signal identifier in this embodiment may refer to all wireless signal identifiers in the target signal list, and may also refer to certain wireless signal identifiers that meet preset conditions.

The wireless signal identifier in the target signal list has a corresponding signal strength, indicating a signal strength corresponding to the received wireless signal identifier at the terminal location. If the signal strength corresponding to a wireless signal identifier is less than a preset value, it indicates that the terminal location is far away from the signal source of the wireless signal identifier, and it is not meaningful to use the wireless signal identifier and its corresponding collection point to locate the terminal location. Therefore, in an implementation manner, when determining the closest collection point according to the wireless signal identifier in the target signal list, the wireless signal identifier corresponding to the signal strength in the target signal list being less than the preset value may be eliminated. A wireless signal identifier corresponding to the signal strength is greater than the preset value in the target signal list, indicating that the terminal is relatively close to the wireless signal identifier and can be used for positioning, and thus the wireless signal identifier is recorded as the positioning wireless signal identifier. The preset value may be determined by the feature library developer according to the actual application environment.

After determining the location of the wireless signal identifier, the database in the server (which may be a feature library) is obtained, and the collection points corresponding to the identifiers of the respective positioning wireless signals are obtained. For example, there are three positioning wireless signal identifiers A, B, and C, and the corresponding relationship with the collection points is as follows:

定位无线信号标识Positioning wireless signal identification	对应采集点Corresponding collection point
AA	①①①111
BB	①①②112
CC	①①②112

After acquiring the collection points in the coverage of the positioning wireless signal identification signals, the method further acquires the maximum number of overlapping times with the coverage of each positioning wireless signal identification signal. Use the collection point. The standby collection point is the collection point closest to the terminal location. The specific reasons are as follows:

Because the positioning wireless signal identifiers are all taken from the target signal list, it means that all the positioning wireless signal identifiers can be received at the terminal location; the standby collection point and the positioning wireless signal identification signal coverage overlap the most, indicating the inactive collection. The point location (compared to other collection points) can receive the most number of positioning wireless signal identifiers (including all positioning wireless signal identifiers received), thereby determining that the inactive collection point is closest to the terminal.

There are multiple acquisition modes for the to-be-used collection points that overlap with the coverage of each positioning wireless signal identification signal.

In an embodiment, taking Table 1 as an example, it can directly count which collection point has the highest frequency. In the example of Table 1, the frequency of the collection points 1 and 1 is the largest, and the collection points 1 and 1 can be directly determined. The wireless signal identifies the standby point where the coverage of the signal overlaps the most, and this embodiment can quickly obtain the standby point to be used.

In another embodiment, the inactive collection points may be indirectly determined according to the signal list of each collection point.

The information points in the feature library are composed of the spatial location and the list of wireless signals near the location. The collection points are the spatial locations of the information points. Each collection point has a corresponding list of stored wireless signals. A simple example of the stored wireless signal list is shown in the table. 2:

无线信号标识Wireless signal identification	无线信号强度Wireless signal strength
RR	rr
SS	ss
TT	tt

The "acquisition point to be used that overlaps the coverage of each positioning wireless signal identification signal" has the same meaning: the collection point corresponding to the stored signal list having the largest number of positioned wireless signal identifiers is the standby collection point. Therefore, the number of the positioning wireless signal identifiers in the stored signal list corresponding to each collection point can be counted, and the collection point corresponding to the stored signal list having the most positioning wireless signal identifier is the standby collection point.

After determining the inactive collection point, the inactive collection point may be one or more. If the number of inactive collection points is multiple, further according to signal strength or other parameters The collection point to be used is limited to one. For example, in an implementation manner, the signal strength of each of the positioning wireless signal identifiers at each collection point to be used may be used as a parameter of a preset algorithm to determine a unique collection point to be used. Or directly select one of the plurality of inactive collection points, and finally obtain a corresponding signal list according to the unique inactive collection point, that is, the original signal list corresponding to the target signal list.

Specifically, in an embodiment, the step of acquiring the original signal list corresponding to the target signal list according to the inactive collection point in step S51 includes:

Step S52, if there is only one in-use collection point, the original signal list corresponding to the target signal list is directly obtained according to the to-be-used collection point;

There is only one collection point to be used, which indicates that the collection point overlaps with the coverage of each positioning wireless signal identification signal, and is closest to the terminal position. The signal list at the inactive collection point is the original signal corresponding to the target signal list. List.

Step S53, if there are multiple collection points to be used, acquiring a first signal strength mean value of all the positioning wireless signal identifiers received at each of the standby collection points and all the positionings in the target signal list The second signal strength average of the wireless signal identifier;

Step S54, comparing the first signal strength mean value with the second signal strength mean value;

Step S55: Obtain a target first signal strength mean value that is the smallest difference from the second signal strength mean value, and determine a first inactive collection point corresponding to the target first signal strength mean value, and obtain the location according to the first inactive collection point. A list of original signals corresponding to the target signal list.

For example, the inactive collection points have two 1, 1 and the corresponding signal list is as follows:

In this embodiment, the first signal strength mean value refers to the mean value of the signal strength of the positioning wireless signal identifier in the signal list corresponding to each to-be-used collection point, that is, (r+s+t)/3 in the above example, (u+v +w)/3. The second signal strength mean refers to the mean value of the signal strength corresponding to the positioning wireless signal identifier in the target signal list, that is, (a+b+c)/3 in the above example.

(r+s+t)/3, (u+v+w)/3 are compared with (a+b+c)/3, respectively, and the difference is the target first signal strength mean, ie, if

|[(r+s+t)/3]-[(a+b+c)/3]|<|[(u+v+w)/3]-[(a+b+c)/3] |

Then (r+s+t)/3 is the target first signal strength mean value, and the corresponding standby collection point 1 is the first standby collection point, because the signal intensity at the standby collection point 1 is closer to the terminal position, It is determined that the inactive collection point 1 is closer to the terminal location, and thus the original signal list corresponding to the target signal list can be obtained according to the unique first inactive collection point.

In this embodiment, the number of the collection points to be used is differentiated. When the inactive collection point is one, the original signal list is directly determined according to the to-be-used collection point, and when the inactive collection points are multiple, the inactive collection points are used. Comparing the first signal strength mean value of all the positioning radio signal identifiers received at the location with the second signal strength mean value of all the positioning radio signal identifiers in the target signal list, and obtaining a first signal strength mean value having a smaller difference value The corresponding standby collection point is the first standby collection point, and then the original signal list is determined according to the first standby collection point, and the whole process of obtaining the original signal list is relatively simple to implement, and the required original signal list can be quickly obtained. Quickly provide automatic update of location services and signature libraries, which is more efficient.

Obtaining, by acquiring the positioning wireless signal identifiers for positioning in the target signal list, acquiring acquisition points in the coverage of each positioning wireless signal identification signal according to the positioning wireless signal identifier, and acquiring the coverage of each positioning wireless signal identification signal The collection point of the most frequently overlapped collection point can determine the collection point closest to the terminal location, according to the standby use The set point can obtain the original signal list corresponding to the target signal list, so that the subsequent steps can be smoothly performed.

In addition, the embodiment of the present invention further provides a storage medium, where the wireless signal spatial distribution feature database update program is stored, and the wireless signal spatial distribution feature database update program is executed by the processor to implement the foregoing embodiment. The steps described are detailed in the above embodiments, and will not be described again.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, item, or system. An element defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in a process, method, article, or system that includes the element, without further limitation.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, portions of the technical solution of the present invention that contribute substantially or to the prior art may be embodied in the form of a software product stored in a storage medium (such as a ROM/RAM as described above). , disk, CD), including a number of instructions to make a terminal device (can be a fixed terminal, such as IoT smart devices, including smart air conditioners, smart lights, smart power supplies, smart routers, etc.; or mobile Terminals, including smart phones, wearable networked AR/VR devices, smart speakers, self-driving cars, and the like, perform a method as described in various embodiments of the present invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

A wireless signal spatial distribution feature database updating method, characterized in that the wireless signal spatial distribution feature database updating method comprises the following steps:

Obtaining a target signal list of a spatial location where the terminal is currently located;

Searching, according to the target signal list, a wireless signal spatial distribution feature library, and obtaining a list of original signals corresponding to the target signal list;

If the original signal list satisfies the update condition, the original signal list is updated according to the target signal list.
The method for updating a wireless signal spatial distribution feature database according to claim 1, wherein the step of obtaining a list of original signals corresponding to the target signal list comprises:

Obtaining, according to the target signal list and the original signal list, all abnormal signal records in the target signal list that are different from the original signal list;

Obtaining an occurrence frequency of each abnormal signal record in all the abnormal signal records;

Determining whether there is a standby abnormal signal record whose frequency is greater than a preset threshold;

If there is a standby abnormality signal record whose frequency is greater than a preset threshold, the original signal list satisfies the update condition.
The method for updating a wireless signal spatial distribution feature database according to claim 2, wherein the step of updating the original signal list according to the target signal list comprises:

Obtaining the to-be-used abnormality signal recorded in the original signal list corresponding to the to-be-updated signal record, and replacing the to-be-updated signal record with the to-be-used abnormal signal record.
The method for updating a wireless signal spatial distribution feature database according to claim 1, wherein the step of obtaining a target signal list of a spatial location currently located by the terminal comprises:

Receiving a positioning request of the terminal, and performing the step of acquiring a target signal list of a spatial location where the terminal is currently located;

The step of obtaining the original signal list corresponding to the target signal list includes:

Acquiring, according to the wireless signal spatial distribution feature library, a target spatial location corresponding to the original signal list;

The target spatial location is sent to the terminal.
The method for updating a wireless signal spatial distribution feature database according to claim 1, wherein the step of searching for a wireless signal spatial distribution feature library according to the target signal list comprises:

And if the original signal list corresponding to the target signal list is found, performing the step of obtaining a list of original signals corresponding to the target signal list;

If the original signal list corresponding to the target signal list is not found, a fault prompt message is output.
The method for updating a wireless signal spatial distribution feature database according to claim 5, wherein the step of not finding the original signal list corresponding to the target signal list comprises:

Obtaining the latitude and longitude position information of the terminal, and determining whether the terminal is located in a recording range of the wireless signal spatial distribution feature database;

If the terminal is located in the recording range of the wireless signal spatial distribution feature database, storing the target signal list and the corresponding terminal latitude and longitude position information as a newly added signal record in the wireless signal spatial distribution feature database;

If the terminal is located outside the recording range of the wireless signal spatial distribution feature library, the step of outputting the fault prompt message is performed.
The wireless signal spatial distribution feature database updating method according to claim 1, wherein the searching for a wireless signal spatial distribution feature library according to the target signal list, obtaining a list of original signals corresponding to the target signal list The steps include:

Obtaining, in the target signal list, all the positioning wireless signal identifiers for positioning, and acquiring the collection points in the coverage of the respective positioning wireless signal identification signals;

Obtaining a to-be-used collection point that overlaps the coverage of each of the positioning wireless signal identification signals, and acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point.
The method for updating a wireless signal spatial distribution feature database according to claim 2, wherein said searching for a spatial distribution characteristic of the wireless signal according to said target signal list a library, the step of obtaining a list of original signals corresponding to the target signal list includes:

Obtaining, in the target signal list, all the positioning wireless signal identifiers for positioning, and acquiring the collection points in the coverage of the respective positioning wireless signal identification signals;

Obtaining a to-be-used collection point that overlaps the coverage of each of the positioning wireless signal identification signals, and acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point.
The wireless signal spatial distribution feature database updating method according to claim 3, wherein the searching for a wireless signal spatial distribution feature library according to the target signal list, obtaining a list of original signals corresponding to the target signal list The steps include:

Obtaining, in the target signal list, all the positioning wireless signal identifiers for positioning, and acquiring the collection points in the coverage of the respective positioning wireless signal identification signals;

Obtaining a to-be-used collection point that overlaps the coverage of each of the positioning wireless signal identification signals, and acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point.
The method for updating a wireless signal spatial distribution feature database according to claim 4, wherein the searching for a wireless signal spatial distribution feature library according to the target signal list, obtaining a list of original signals corresponding to the target signal list The steps include:

Obtaining, in the target signal list, all the positioning wireless signal identifiers for positioning, and acquiring the collection points in the coverage of the respective positioning wireless signal identification signals;

Obtaining a to-be-used collection point that overlaps the coverage of each of the positioning wireless signal identification signals, and acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point.
The wireless signal spatial distribution feature database updating method according to claim 5, wherein the searching for a wireless signal spatial distribution feature library according to the target signal list, obtaining a list of original signals corresponding to the target signal list The steps include:

Obtaining, in the target signal list, all the positioning wireless signal identifiers for positioning, and acquiring the collection points in the coverage of the respective positioning wireless signal identification signals;

Obtaining a to-be-used collection point that overlaps the coverage of each of the positioning wireless signal identification signals, and acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point.
The method for updating a wireless signal spatial distribution feature database according to claim 6, wherein the searching for a wireless signal spatial distribution feature library according to the target signal list, obtaining a list of original signals corresponding to the target signal list The steps include:

Obtaining, in the target signal list, all the positioning wireless signal identifiers for positioning, and acquiring the collection points in the coverage of the respective positioning wireless signal identification signals;

Obtaining a to-be-used collection point that overlaps the coverage of each of the positioning wireless signal identification signals, and acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point.
The method for updating a wireless signal spatial distribution feature database according to claim 7, wherein the step of acquiring the original signal list corresponding to the target signal list according to the inactive collection point comprises:

If there is only one in-use collection point, the original signal list corresponding to the target signal list is directly obtained according to the to-be-used collection point;

Obtaining, by the plurality of collection points to be used, a first signal strength mean value of all the positioning wireless signal identifiers received at each of the to-be-used collection points, and all the positioning wireless signal identifiers in the target signal list Second signal strength mean;

Comparing the first signal strength mean with a second signal strength mean;

Obtaining a target first signal strength mean value that is the smallest difference from the second signal strength mean value, determining a first inactive collection point corresponding to the target first signal strength mean value, and acquiring the target signal according to the first inactive collection point The list of original signals corresponding to the list.
The method for updating a wireless signal spatial distribution feature database according to claim 8, wherein the step of acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point comprises:

If there is only one in-use collection point, the original signal list corresponding to the target signal list is directly obtained according to the to-be-used collection point;

Obtaining, by the plurality of collection points to be used, a first signal strength mean value of all the positioning wireless signal identifiers received at each of the to-be-used collection points, and all the positioning wireless signal identifiers in the target signal list Second signal strength mean;

Comparing the first signal strength mean with a second signal strength mean;

Obtaining a target first signal strength that is the smallest difference from the second signal strength mean And determining, by the first inactive collection point corresponding to the target first signal strength mean value, acquiring the original signal list corresponding to the target signal list according to the first inactive collection point.
The method for updating a wireless signal spatial distribution feature database according to claim 10, wherein the step of acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point comprises:

If there is only one in-use collection point, the original signal list corresponding to the target signal list is directly obtained according to the to-be-used collection point;

Obtaining, by the plurality of collection points to be used, a first signal strength mean value of all the positioning wireless signal identifiers received at each of the to-be-used collection points, and all the positioning wireless signal identifiers in the target signal list Second signal strength mean;

Comparing the first signal strength mean with a second signal strength mean;

Obtaining a target first signal strength mean value that is the smallest difference from the second signal strength mean value, determining a first inactive collection point corresponding to the target first signal strength mean value, and acquiring the target signal according to the first inactive collection point The list of original signals corresponding to the list.
The method for updating a wireless signal spatial distribution feature database according to claim 11, wherein the step of acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point comprises:

If there is only one in-use collection point, the original signal list corresponding to the target signal list is directly obtained according to the to-be-used collection point;

Obtaining, by the plurality of collection points to be used, a first signal strength mean value of all the positioning wireless signal identifiers received at each of the to-be-used collection points, and all the positioning wireless signal identifiers in the target signal list Second signal strength mean;

Comparing the first signal strength mean with a second signal strength mean;

Obtaining a target first signal strength mean value that is the smallest difference from the second signal strength mean value, determining a first inactive collection point corresponding to the target first signal strength mean value, and acquiring the target signal according to the first inactive collection point The list of original signals corresponding to the list.
The method for updating a wireless signal spatial distribution feature database according to claim 12, wherein the step of acquiring the original signal list corresponding to the target signal list according to the to-be-used collection point comprises:

If there is only one collection point to be used, the method is directly obtained according to the inactive collection point. a list of original signals corresponding to the target signal list;

Obtaining, by the plurality of collection points to be used, a first signal strength mean value of all the positioning wireless signal identifiers received at each of the to-be-used collection points, and all the positioning wireless signal identifiers in the target signal list Second signal strength mean;

Comparing the first signal strength mean with a second signal strength mean;

Obtaining a target first signal strength mean value that is the smallest difference from the second signal strength mean value, determining a first inactive collection point corresponding to the target first signal strength mean value, and acquiring the target signal according to the first inactive collection point The list of original signals corresponding to the list.
A server, comprising: a memory, a processor, and a wireless signal spatial distribution feature database update program stored on the memory and operable on the processor, the wireless signal spatial distribution feature The steps of the method of claim 1 are implemented when the library update program is executed by the processor.
A storage medium, wherein the storage medium stores a wireless signal spatial distribution feature database update program, and the wireless signal spatial distribution feature database update program is executed by the processor to implement the wireless signal according to claim 1. The steps of the spatial distribution feature library update method.