CN111163458B - Data acquisition method, device and system - Google Patents
Data acquisition method, device and system Download PDFInfo
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- CN111163458B CN111163458B CN202010071336.2A CN202010071336A CN111163458B CN 111163458 B CN111163458 B CN 111163458B CN 202010071336 A CN202010071336 A CN 202010071336A CN 111163458 B CN111163458 B CN 111163458B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
Abstract
The embodiment of the application provides a data acquisition method, a data acquisition device and a data acquisition system. The data acquisition method comprises the following steps: acquiring radio frequency fingerprint information of the wireless communication equipment through the radio frequency signal; generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment; and sending the radio frequency fingerprint acquisition data to a server so that the server updates an offline fingerprint database of the wireless communication equipment according to the radio frequency fingerprint acquisition data. According to the technical scheme, the off-line fingerprint database of the wireless communication equipment is updated in time, so that the off-line fingerprint database can accurately reflect the radio frequency fingerprint information of each current wireless communication equipment, the terminal can accurately acquire the radio frequency fingerprint information, and the positioning accuracy of the terminal is improved.
Description
Technical Field
The present application relates to the field of data processing technologies, and in particular, to a data acquisition method, apparatus, and system.
Background
When positioning is performed in an indoor environment, generally, an offline fingerprint database is formed by collecting radio frequency fingerprint information of wireless communication equipment such as Wi-Fi, a cellular base station and Bluetooth, and then the terminal is positioned by matching of online fingerprints.
At present, an offline fingerprint library is generally established by collecting radio frequency fingerprint information of wireless communication equipment in advance, however, along with the change of an indoor environment, the radio frequency fingerprint information of each wireless communication equipment also changes, so that the offline fingerprint library cannot accurately reflect the radio frequency fingerprint information of each current wireless communication equipment, and therefore, a terminal cannot accurately acquire the radio frequency fingerprint information, and the positioning accuracy of the terminal is further reduced.
Disclosure of Invention
Embodiments of the present application provide a data acquisition method, apparatus, and system, which enable an offline fingerprint library to accurately reflect radio frequency fingerprint information of each current wireless communication device, so that a terminal can accurately obtain the radio frequency fingerprint information, and positioning accuracy of the terminal is improved.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of the embodiments of the present application, there is provided a software processing method applied to a radio frequency fingerprint acquisition device, including: acquiring radio frequency fingerprint information of the wireless communication equipment through the radio frequency signal; generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment; and sending the radio frequency fingerprint acquisition data to a server so that the server updates an offline fingerprint database of the wireless communication equipment according to the radio frequency fingerprint acquisition data.
According to an aspect of an embodiment of the present application, there is provided a data acquisition apparatus including: the wireless communication device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring radio frequency fingerprint information of the wireless communication device through a radio frequency signal; the generating unit is used for generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment; and the sending unit is used for sending the radio frequency fingerprint acquisition data to a server so that the server updates an offline fingerprint library of the wireless communication equipment according to the radio frequency fingerprint acquisition data.
In some embodiments of the present application, based on the foregoing scheme, the radio frequency signal includes a wireless signal strength of a wireless communication device, and the obtaining unit is configured to: the first generation subunit is used for generating target wireless signal strength according to a plurality of wireless signal strengths acquired for a plurality of times; and the second generation subunit is used for generating the radio frequency fingerprint information based on the target wireless signal strength.
In some embodiments of the present application, based on the foregoing scheme, the first generating subunit is configured to: and generating the target wireless signal strength according to the average value of a plurality of wireless signal strengths acquired for a plurality of times.
In some embodiments of the present application, based on the foregoing scheme, the first generating subunit is configured to: sequentially sequencing a plurality of wireless signal strengths acquired for a plurality of times according to the signal strength; and taking the wireless signal strength of the sequencing center as the target wireless signal strength.
In some embodiments of the present application, based on the foregoing scheme, the sending unit is configured to: and periodically sending the radio frequency fingerprint acquisition data to the server at a preset time point based on a preset reporting period.
In some embodiments of the present application, based on the foregoing scheme, the obtaining unit is configured to: acquiring radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on a preset sampling period; and/or acquiring the radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on the acquisition instruction of the server.
In some embodiments of the present application, based on the foregoing scheme, the obtaining unit is configured to: receiving an acquisition instruction from the server, wherein the acquisition instruction carries target identification information indicating radio frequency fingerprint acquisition equipment for acquiring radio frequency signals; and if the target identification information is detected to contain the identification information of the radio frequency fingerprint acquisition equipment, acquiring the radio frequency signal of the detected wireless communication equipment.
In some embodiments of the application, based on the foregoing scheme, if the acquisition instruction carries first period configuration information for configuring a preset sampling period, the data acquisition device further includes: and the configuration unit is used for configuring a preset sampling period based on the first period configuration information in the acquisition instruction.
According to an aspect of an embodiment of the present application, there is provided a data acquisition system including: the system comprises wireless communication equipment, radio frequency fingerprint acquisition equipment and a server; the wireless communication device is used for transmitting a radio frequency signal, and the radio frequency signal comprises radio frequency fingerprint information of the wireless communication device; the radio frequency fingerprint acquisition equipment is used for acquiring radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal; generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment; sending the radio frequency fingerprint acquisition data to a server; and the server is used for receiving the radio frequency fingerprint acquisition data from the radio frequency fingerprint acquisition equipment and updating an offline fingerprint database of the wireless communication equipment according to the radio frequency fingerprint acquisition data.
According to an aspect of embodiments of the present application, there is provided a computer-readable medium, on which a computer program is stored, which, when executed by a processor, implements the data acquisition method as described in the above embodiments.
According to an aspect of an embodiment of the present application, there is provided an electronic device including: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the data acquisition method as described in the embodiments above.
In the technical solutions provided in some embodiments of the present application, the set radio frequency fingerprint acquisition device acquires radio frequency fingerprint acquisition data for the wireless communication device, and the off-line fingerprint library of the wireless communication device is updated in time, so that the off-line fingerprint library can accurately reflect the radio frequency fingerprint information of each current wireless communication device, and further, the terminal can accurately acquire the radio frequency fingerprint information, and the positioning accuracy of the terminal is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 shows a schematic diagram of an exemplary system architecture to which aspects of embodiments of the present application may be applied;
FIG. 2 shows a flow diagram of a data acquisition method according to an embodiment of the present application.
Fig. 3 shows a detailed flowchart of step S210 of the data acquisition method according to an embodiment of the present application.
Fig. 4 shows a detailed flowchart of step S310 of the data acquisition method according to an embodiment of the present application.
FIG. 5 shows a flow diagram of a data acquisition method according to an embodiment of the present application.
FIG. 6 shows a flow diagram of a data acquisition method in a data acquisition system according to an embodiment of the present application.
Fig. 7 shows a flow chart of a data acquisition method in a data acquisition system according to another embodiment of the present application.
FIG. 8 shows a block diagram of a data acquisition device according to an embodiment of the present application.
FIG. 9 illustrates a schematic structural diagram of a computer system suitable for use in implementing the electronic device of an embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
Fig. 1 shows a schematic diagram of an exemplary system architecture to which the technical solution of the embodiments of the present application can be applied.
As shown in fig. 1, the system architecture may include a wireless communication device 101, a radio frequency fingerprinting device 102, a server 103 and a network 104. The network 104 is used to enable the radio frequency fingerprinting device 102 to acquire the radio frequency signal of the wireless communication device or to provide a medium for a communication link between the radio frequency fingerprinting device 102 and the server 103, and the network 104 may comprise various connection types, which may be, for example, a wireless communication link.
It should be understood that the number of wireless communication devices 101, radio frequency fingerprinting devices 102, servers 103 and networks 104 in fig. 1 is merely illustrative. There may be any number of wireless communication devices 101, radio frequency fingerprinting devices 102, servers 103 and networks 104, depending on implementation needs. For example, the server 103 may be a server cluster composed of a plurality of servers.
The radio frequency fingerprinting device 102 interacts with a server 103 via a network 104 to receive or send messages or the like. The wireless communication device 101 may be a device that transmits information through radio waves, and may transmit a radio frequency signal containing radio frequency fingerprint information, specifically, may be a WiFi device, a bluetooth device, or a cellular base station that is disposed in a fixed area; the radio frequency fingerprint acquisition device 102 may be a device disposed near the wireless communication device 101, and may detect a radio frequency signal of the radio frequency fingerprint acquisition device 102; the server 103 may be a server providing various services, for example, an offline fingerprint library storing wireless communication devices for access by terminal devices provided to users. The radio frequency fingerprint acquisition equipment can detect radio frequency signals emitted by wireless communication equipment within a preset range when in use, and acquire radio frequency fingerprint information of the wireless communication equipment through the radio frequency signals; then, generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment; sending the radio frequency fingerprint acquisition data to a server so that the server updates an offline fingerprint database of the wireless communication equipment according to the radio frequency fingerprint acquisition data; radio frequency fingerprint collection data aiming at the wireless communication equipment are collected through the radio frequency fingerprint collection equipment, and timely updating of an offline fingerprint library of the wireless communication equipment is achieved, so that the offline fingerprint library can accurately reflect the radio frequency fingerprint information of each piece of current wireless communication equipment, the terminal can accurately acquire the radio frequency fingerprint information, and the positioning accuracy of the terminal is improved.
It should be noted that the data collecting method provided in the embodiment of the present application is generally executed by the rf fingerprint collecting device 102, and accordingly, the data collecting apparatus is generally disposed in the rf fingerprint collecting device 102.
The implementation details of the technical solution of the embodiment of the present application are set forth in detail below:
fig. 2 shows a flow diagram of a data acquisition method according to an embodiment of the present application, which may be performed by a radio frequency fingerprinting device, which may be the radio frequency fingerprinting device 102 shown in fig. 1. Referring to fig. 2, the data acquisition method at least includes steps S210 to S230, which are described in detail as follows:
in step S210, radio frequency fingerprint information of the wireless communication device is acquired through the radio frequency signal.
In one embodiment, the wireless communication device is a device that transmits information through radio waves, and specifically may be a WiFi device that transmits information through a WiFi signal or a bluetooth device that transmits information through a bluetooth signal, and may also be a base station that transmits information through a cellular signal.
The radio frequency signal is a signal which is transmitted by the wireless communication device and contains radio frequency fingerprint information, and the radio frequency fingerprint information is information for performing radio frequency identification on the wireless communication device and can include various attribute information of the wireless communication device, identification information corresponding to the device and the like.
When the wireless communication device is a WiFi device, the rf fingerprint information may include a Media Access Control (MAC) address of the WiFi device, a Service Set Identifier (SSID) of the WiFi device, a WiFi signal strength of the WiFi device, and a Round-trip time (RTT) of the WiFi device when transmitting data.
When the wireless communication device is a bluetooth device, the radio frequency fingerprint information may include a MAC address of the bluetooth device, device identification information of the bluetooth device, and bluetooth signal strength of the bluetooth device, where the device identification information of the bluetooth device may include a Universally Unique Identifier (UUID) of the bluetooth device, and unique identification information of the bluetooth device, where the universally unique identifier is used to identify a service type implemented by the bluetooth device, such as a bluetooth serial service, a dial-up network service, or a file transfer service, and the unique identification information is used as a unique identifier for identifying different bluetooth devices, such as a bluetooth device number of a self-defined area.
When the wireless communication device is a cellular base station, the radio frequency fingerprint information may include an operator identifier to which the cellular base station belongs, a network type of the cellular base station, unique device identifier information of the cellular base station, and various signal parameters of the cellular signal, and the various signal parameters of the cellular signal may include a wireless signal strength of the cellular signal, a reference signal reception power of the cellular signal, a reference signal reception quality of the cellular signal, a signal-to-interference-plus-noise ratio of the cellular signal, and the like.
Referring to fig. 3, fig. 3 shows a detailed flowchart of step S210 of the data acquisition method according to an embodiment of the present application, in which the radio frequency signal includes a wireless signal strength of a wireless communication device, and step S220 may specifically include step S310 to step S320, which are described in detail below.
In step S310, generating a target wireless signal strength according to a plurality of wireless signal strengths acquired a plurality of times;
if the radio frequency signal contains the radio signal intensity, when the radio frequency fingerprint information of the wireless communication equipment is obtained, the radio frequency signal can be collected for multiple times to obtain multiple radio signal intensities aiming at one wireless communication equipment, and the target radio signal intensity is generated according to the multiple radio signal intensities collected for multiple times. It should be noted that, when the wireless communication device is a WiFi device, the wireless signal strength is a WiFi signal strength; when the wireless communication equipment is WiFi equipment, the wireless signal intensity is Bluetooth signal intensity; when the wireless communication device is a cellular base station, the wireless signal strength may include signal strengths of various signal parameters of the cellular signal, for example, four-dimensional parameters such as a wireless signal strength of the cellular signal, a reference signal received power of the cellular signal, a reference signal received quality of the cellular signal, and a signal-to-interference-plus-noise ratio of the cellular signal.
Referring to fig. 4, fig. 4 shows a specific flowchart of step S310 of the data acquisition method according to an embodiment of the present application, in this embodiment, step S310 may specifically include step S410 to step S420, which is described in detail as follows.
In step S410, the wireless signal strengths acquired multiple times are sequentially sorted according to the signal strength.
When the target wireless signal strength is generated according to the multiple wireless signal strengths acquired for multiple times, the multiple wireless signal strengths acquired for multiple times can be sequentially sequenced according to the signal strength to obtain a sequence. In the sorting, the signal strength may be sorted in the order from low to high, or the signal strength may be sorted in the order from high to low, which is not limited herein.
In step S420, the wireless signal strength of the ranking center is taken as the target wireless signal strength.
In the sequence obtained by the sorting, the radio signal strength at the sorting center may be set as the target radio signal strength. It should be noted that, if the number N of the wireless signal strengths is an odd number, the (N +1)/2 th wireless signal strength at the sorting center in the sequence sorted from high to low or sorted from low to high is taken out as the target wireless signal strength; and if the number N of the wireless signal strengths is an even number, taking out the N/2 th or (N/2) +1 st wireless signal strength positioned in the sequencing center in the sequence from high to low or from low to high as the determined target wireless signal strength. For example, when the number of the wireless signal strengths is 5, the 3 rd wireless signal strength is taken out as the target wireless signal strength; and when the number of the wireless signal strengths is 6, taking out the 3 rd or 4 th wireless signal strength as the determined target wireless signal strength.
In the technical solution of the embodiment shown in fig. 4, the strengths of a plurality of wireless signals collected for a plurality of times are sequentially sorted according to the strength of the signals; the wireless signal intensity of the sequencing center is used as the target wireless signal intensity, so that the error caused by only once acquisition can be avoided, and the accuracy of the determined wireless signal intensity of the wireless communication equipment is improved.
In an embodiment of the present application, the step S310 of generating a target wireless signal strength according to a plurality of wireless signal strengths acquired a plurality of times includes: and generating the target wireless signal strength according to the average value of a plurality of wireless signal strengths acquired for a plurality of times.
In one embodiment, when the target wireless signal strength is generated from the average value of the plurality of wireless signal strengths acquired a plurality of times, the average value of the plurality of wireless signal strengths acquired may be determined from the plurality of wireless signal strengths acquired a plurality of times, and the average value may be taken as the target wireless signal strength.
Optionally, when determining the average value according to the multiple wireless signal strengths acquired multiple times, the wireless signal strength with the largest signal strength and the smallest signal strength in the multiple wireless signal strengths may be first removed, and then the average value in the remaining wireless signal strengths may be determined as the target wireless signal strength.
The target wireless signal strength of the wireless communication equipment is determined by calculating the average value according to the wireless signal strengths, so that the error caused by only one acquisition is avoided, the results of multiple acquisitions can be comprehensively considered, the acquisition result which can accurately reflect the wireless signal strength of the wireless communication equipment is determined from the results of multiple acquisitions, and the accuracy of the determined wireless signal strength of the wireless communication equipment is improved.
Still referring to fig. 3, in step S320, the radio frequency fingerprint information is generated based on the target wireless signal strength.
After the target wireless signal strength is obtained, the radio frequency fingerprint information is generated according to the target wireless signal strength and other information contained in the radio frequency signal. Other information contained in the rf signal may vary with the type of wireless communication device, such as for a WiFi device, the other information contained in the rf signal may include the MAC address of the WiFi device, the SSID of the WiFi device, and the RTT of the WiFi device in transmitting data.
In an embodiment of the present application, the acquiring radio frequency fingerprint information of a wireless communication device through a radio frequency signal includes: acquiring radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on a preset sampling period; and/or acquiring the radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on the acquisition instruction of the server.
In an embodiment, when acquiring the required radio frequency fingerprint information, the radio frequency fingerprint acquisition device may periodically detect a radio frequency signal of the wireless communication device based on a preset sampling period, and generate the radio frequency fingerprint information according to the detected radio frequency signal of the wireless communication device, where the sampling period may be configured in advance in the radio frequency fingerprint acquisition device, so that the radio frequency fingerprint acquisition device may detect the radio frequency signal of the wireless communication device within a predetermined range according to a certain period. The size of the sampling period may be set according to the current actual demand, for example, the size of the sampling period may be set to 1 minute.
In an embodiment, when acquiring the required radio frequency fingerprint information, the radio frequency fingerprint acquisition device may further detect a radio frequency signal of the wireless communication device after receiving an acquisition instruction of the server, and generate the radio frequency fingerprint information according to the detected radio frequency signal. The acquisition instruction is instruction information agreed between the server and the radio frequency fingerprint acquisition equipment and used for instructing the radio frequency fingerprint acquisition equipment to acquire radio frequency fingerprint information, and specifically may be a character string.
Referring to fig. 5, fig. 5 is a flowchart illustrating a data acquisition method according to an embodiment of the present application, and the step of acquiring the radio frequency fingerprint information of the wireless communication device through the radio frequency signal based on the acquisition instruction of the server may include steps S510 to S520, which are described in detail below.
In step S510, an acquisition instruction from the server is received, where the acquisition instruction carries target identification information indicating a radio frequency fingerprint acquisition device that performs radio frequency signal acquisition.
In one embodiment, the acquisition instruction may further carry target identification information indicating a radio frequency fingerprint acquisition device that performs radio frequency fingerprint information acquisition, so that the radio frequency fingerprint acquisition device determines whether the radio frequency fingerprint information acquisition is required. It should be noted that the acquisition instruction may carry identification information of one or more radio frequency fingerprint acquisition devices, and the identification information of the radio frequency fingerprint acquisition device carried by the acquisition instruction may specifically be a device identification code of the radio frequency fingerprint acquisition device.
In step S520, if it is detected that the target identification information includes identification information of the radio frequency fingerprint acquisition device, a radio frequency signal of the detected wireless communication device is acquired.
The radio frequency fingerprint acquisition equipment receives an acquisition instruction of the server, detects a radio frequency signal of the wireless communication equipment if detecting that target identification information in the acquisition instruction contains identification information corresponding to the equipment, and generates radio frequency fingerprint information according to the detected radio frequency signal of the wireless communication equipment.
In an embodiment of the application, if the acquisition instruction carries first period configuration information for configuring a preset sampling period, the data acquisition method further includes: and configuring a preset sampling period based on the first period configuration information in the acquisition instruction.
The acquisition instruction can also carry first period configuration information for configuring a preset sampling period, so that the server can control the radio frequency fingerprint acquisition equipment to configure the sampling period, and further the server can adjust the sampling period of each radio frequency fingerprint acquisition equipment based on the radio frequency fingerprint information change condition of the wireless communication equipment at the position where each radio frequency fingerprint acquisition equipment is located.
In an embodiment of the application, if the acquisition instruction carries update configuration information that is updated according to a generation rule of the radio frequency fingerprint acquisition data, the data acquisition method further includes: and updating the generation rule of the preset radio frequency fingerprint acquisition data based on the updating configuration information.
The generation rule of the radio frequency fingerprint acquisition data refers to a rule that the radio frequency fingerprint acquisition equipment generates target wireless signal strength according to a plurality of wireless signal strengths acquired for a plurality of times, and the rule may specifically include a rule that the target wireless signal strength is generated according to an average value of the plurality of wireless signal strengths acquired for a plurality of times, and a rule that the plurality of wireless signal strengths acquired for a plurality of times are sequentially sorted according to the signal strength, and the wireless signal strength at the center of the sorting is taken as the target wireless signal strength. The update configuration information is instruction information agreed between the server and the radio frequency fingerprint acquisition device, and may specifically be a character string, and it is to be noted that different rules may be identified by using different character strings.
Referring to fig. 2 again, in step S220, radio frequency fingerprint acquisition data is generated according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition device.
After the radio frequency fingerprint information of the wireless communication device is acquired, in order to report the acquired radio frequency fingerprint information to the server, radio frequency fingerprint acquisition data to be reported can be generated according to the identification information of the wireless communication device and the acquired radio frequency fingerprint information, and the identification information of the radio frequency fingerprint acquisition device is used for enabling the server to identify the radio frequency fingerprint acquisition data to be reported.
In an embodiment of the present application, if the acquisition instruction carries second period configuration information for configuring a preset reporting period, the data acquisition method further includes: and configuring a preset reporting period based on the second period configuration information in the acquisition instruction.
The acquisition instruction can also carry second period configuration information for configuring a preset reporting period, so that the server can update and configure the reporting period of the radio frequency fingerprint acquisition equipment, the radio frequency fingerprint acquisition equipment can report acquired radio frequency fingerprint acquisition data at one time, the situation that the radio frequency fingerprint acquisition data are reported once every time of acquisition is avoided, and the data transmission efficiency between the server and the radio frequency fingerprint acquisition data is improved.
Referring to fig. 2 again, in step S230, the rf fingerprint data is sent to a server, so that the server updates an offline fingerprint database of the wireless communication device according to the rf fingerprint data.
The offline fingerprint library is configured by the server for each wireless communication device, and is used to store the radio frequency fingerprint information of each wireless communication device, and the offline fingerprint library may include a mapping relationship table between the identification information of each wireless communication device and the radio frequency fingerprint information corresponding to the identification information, and certainly, in order to update the offline fingerprint library, a mapping relationship table between the radio frequency fingerprint acquisition device and each reported wireless communication device may be added.
The radio frequency fingerprint acquisition equipment sends the generated radio frequency fingerprint acquisition data to the server, so that the server can update the offline fingerprint library of the wireless communication equipment according to the radio frequency fingerprint acquisition data, and specifically, the corresponding radio frequency fingerprint information can be found according to the identification information of the wireless communication equipment and then updated; correspondingly, if the offline fingerprint library further includes a mapping relation table between the radio frequency fingerprint acquisition device and each reported wireless communication device, when the offline fingerprint library is updated, each reported wireless communication device of the radio frequency fingerprint acquisition device can be found according to the identification information of the radio frequency fingerprint acquisition device, and the radio frequency fingerprint information stored correspondingly is updated according to the radio frequency fingerprint information of each wireless communication device included in the radio frequency fingerprint acquisition data.
Therefore, the radio frequency fingerprint collection data aiming at the wireless communication equipment is collected through the radio frequency fingerprint collection equipment, the offline fingerprint database of the wireless communication equipment is updated in time, the offline fingerprint database can accurately reflect the radio frequency fingerprint information of each piece of current wireless communication equipment, the terminal can accurately obtain the radio frequency fingerprint information, and the positioning accuracy of the terminal is improved.
In an embodiment of the present application, a data acquisition system is further provided, where the data acquisition system in this embodiment includes a server, a radio frequency fingerprint acquisition device, and a wireless communication device. The wireless communication device is used for transmitting a radio frequency signal, and the radio frequency signal comprises radio frequency fingerprint information of the wireless communication device. The radio frequency fingerprint acquisition equipment is used for acquiring radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal; generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment; and sending the radio frequency fingerprint acquisition data to a server. And the server is used for receiving the radio frequency fingerprint acquisition data from the radio frequency fingerprint acquisition equipment and updating an offline fingerprint database of the wireless communication equipment according to the radio frequency fingerprint acquisition data.
The data acquisition system in the embodiment of the present application is specifically described below.
Referring to fig. 6, fig. 6 is a flowchart illustrating a data acquisition method in a data acquisition system according to an embodiment of the present application, which may include steps S610 to S660, and is described in detail as follows.
In step S610, a radio frequency signal is transmitted.
The wireless communication device transmits a radio frequency signal containing radio frequency fingerprint information.
In step S620, radio frequency fingerprint information of the wireless communication device is acquired through the radio frequency signal based on a preset sampling period.
The radio frequency fingerprint acquisition equipment detects the radio frequency signal of the wireless communication equipment at the corresponding time point according to the preset sampling period, and obtains the radio frequency fingerprint information of the wireless communication equipment through the radio frequency signal.
In step S630, radio frequency fingerprint acquisition data is generated according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition device.
And the radio frequency fingerprint acquisition equipment generates radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment.
In step S640, the rf fingerprint data is sent to a server.
And the radio frequency fingerprint acquisition equipment sends the radio frequency fingerprint acquisition data to the server.
In step S650, the radio frequency fingerprint acquisition data is received from the radio frequency fingerprint acquisition device.
The server receives the radio frequency fingerprint acquisition data from the radio frequency fingerprint acquisition device.
In step S660, the offline fingerprint library of the wireless communication device is updated according to the rf fingerprint data.
And the server updates the offline fingerprint library aiming at the wireless communication equipment according to the radio frequency fingerprint information contained in the radio frequency fingerprint acquisition data and the identification information of the radio frequency fingerprint acquisition equipment.
Referring to fig. 6, fig. 6 is a flowchart illustrating a data acquisition method in a data acquisition system according to an embodiment of the present application, which may include steps S710 to S770, and is described in detail as follows.
In step S710, a radio frequency signal is transmitted.
The wireless communication device transmits a radio frequency signal containing radio frequency fingerprint information.
In step S720, a collecting instruction is sent to the rf fingerprint collecting device.
And the server sends an acquisition instruction to the radio frequency fingerprint acquisition equipment.
In step S730, the radio frequency fingerprint information of the wireless communication device is obtained through the radio frequency signal based on the acquisition instruction of the server.
After receiving the acquisition instruction of the server, the radio frequency fingerprint acquisition equipment can detect the radio frequency signal of the wireless communication equipment and acquire the radio frequency fingerprint information of the wireless communication equipment through the radio frequency signal.
In step S740, radio frequency fingerprint acquisition data is generated according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition device.
And the radio frequency fingerprint acquisition equipment generates radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment.
In step S750, the rf fingerprint data is sent to a server.
And the radio frequency fingerprint acquisition equipment sends the radio frequency fingerprint acquisition data to the server.
In step S760, the radio frequency fingerprint data is received from the radio frequency fingerprint acquisition device.
The server receives the radio frequency fingerprint acquisition data from the radio frequency fingerprint acquisition device.
In step S770, an offline fingerprint database of the wireless communication device is updated according to the rf fingerprint data.
And the server updates the offline fingerprint library aiming at the wireless communication equipment according to the radio frequency fingerprint information contained in the radio frequency fingerprint acquisition data and the identification information of the radio frequency fingerprint acquisition equipment.
In the data acquisition systems in the embodiments shown in fig. 6 and 7, the set radio frequency fingerprint acquisition device is used to acquire radio frequency fingerprint acquisition data for the wireless communication device, so that the offline fingerprint library of the wireless communication device is updated in time, the offline fingerprint library can accurately reflect the radio frequency fingerprint information of each current wireless communication device, the terminal can accurately acquire the radio frequency fingerprint information, and the positioning accuracy of the terminal is improved.
Embodiments of the apparatus of the present application are described below, which may be used to perform the data acquisition methods of the above-described embodiments of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the data acquisition method described above in the present application.
FIG. 8 shows a block diagram of a data acquisition device according to an embodiment of the present application.
Referring to fig. 8, a data acquisition apparatus 800 according to an embodiment of the present application includes: an obtaining unit 810, configured to obtain radio frequency fingerprint information of the wireless communication device through a radio frequency signal; a generating unit 820, configured to generate radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition device; the sending unit 830 is configured to send the radio frequency fingerprint acquisition data to a server, so that the server updates an offline fingerprint library of the wireless communication device according to the radio frequency fingerprint acquisition data.
In some embodiments of the present application, based on the foregoing scheme, the radio frequency signal includes a wireless signal strength of a wireless communication device, and the obtaining unit 810 is configured to: the first generation subunit is used for generating target wireless signal strength according to a plurality of wireless signal strengths acquired for a plurality of times; and the second generation subunit is used for generating the radio frequency fingerprint information based on the target wireless signal strength.
In some embodiments of the present application, based on the foregoing scheme, the first generating subunit is configured to: and generating the target wireless signal strength according to the average value of a plurality of wireless signal strengths acquired for a plurality of times.
In some embodiments of the present application, based on the foregoing scheme, the first generating subunit is configured to: sequentially sequencing a plurality of wireless signal strengths acquired for a plurality of times according to the signal strength; and taking the wireless signal strength of the sequencing center as the target wireless signal strength.
In some embodiments of the present application, based on the foregoing scheme, the sending unit 810 is configured to: and periodically sending the radio frequency fingerprint acquisition data to the server at a preset time point based on a preset reporting period.
In some embodiments of the present application, based on the foregoing scheme, the obtaining unit 810 is configured to: acquiring radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on a preset sampling period; and/or acquiring the radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on the acquisition instruction of the server.
In some embodiments of the present application, based on the foregoing scheme, the obtaining unit 810 is configured to: receiving an acquisition instruction from the server, wherein the acquisition instruction carries target identification information indicating radio frequency fingerprint acquisition equipment for acquiring radio frequency signals; and if the target identification information is detected to contain the identification information of the radio frequency fingerprint acquisition equipment, acquiring the radio frequency signal of the detected wireless communication equipment.
In some embodiments of the application, based on the foregoing scheme, if the acquisition instruction carries first period configuration information for configuring a preset sampling period, the data acquisition device further includes: and the configuration unit is used for configuring a preset sampling period based on the first period configuration information in the acquisition instruction.
FIG. 9 illustrates a schematic structural diagram of a computer system suitable for use in implementing the electronic device of an embodiment of the present application.
It should be noted that the computer system 900 of the electronic device shown in fig. 9 is only an example, and should not bring any limitation to the functions and the scope of the application of the embodiments.
As shown in fig. 9, the computer system 900 includes a Central Processing Unit (CPU)901, which can perform various appropriate actions and processes, such as performing the methods described in the above embodiments, according to a program stored in a Read-only memory (ROM) 902 or a program loaded from a storage portion 908 into a Random Access Memory (RAM) 903. In the RAM903, various programs and data necessary for system operation are also stored. The CPU901, ROM902, and RAM903 are connected to each other via a bus 904. An Input/Output (I/O) interface 905 is also connected to bus 904.
The following components are connected to the I/O interface 905: an input portion 906 including a keyboard, a mouse, and the like; an output section 907 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage portion 908 including a hard disk and the like; and a communication section 909 including a network interface card such as a LAN (local area network) card, a modem, or the like. The communication section 909 performs communication processing via a network such as the internet. The drive 910 is also connected to the I/O interface 905 as necessary. A removable medium 911 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 910 as necessary, so that a computer program read out therefrom is mounted into the storage section 908 as necessary.
In particular, according to embodiments of the application, the processes described above with reference to the flow diagrams may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 909, and/or installed from the removable medium 911. The computer program executes various functions defined in the system of the present application when executed by a Central Processing Unit (CPU) 901.
It should be noted that the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with a computer program embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (9)
1. A data acquisition method is applied to radio frequency fingerprint acquisition equipment and is characterized by comprising the following steps:
acquiring radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on an acquisition instruction of the server;
generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment;
sending the radio frequency fingerprint acquisition data to a server so that the server updates an offline fingerprint database of the wireless communication equipment according to the radio frequency fingerprint acquisition data;
if the acquisition instruction carries update configuration information for identifying the generation rule of the radio frequency fingerprint acquisition data, updating the generation rule of the radio frequency fingerprint acquisition data based on the update configuration information, wherein the update configuration information is instruction information agreed between the server and the radio frequency fingerprint acquisition equipment, and the update configuration information identifies different generation rules by adopting different character strings.
2. The data acquisition method according to claim 1, wherein the radio frequency signal contains a radio signal strength of the wireless communication device, and the acquiring the radio frequency fingerprint information of the wireless communication device by the radio frequency signal comprises:
generating target wireless signal intensity according to a plurality of wireless signal intensities acquired for a plurality of times;
generating the radio frequency fingerprint information based on the target wireless signal strength.
3. The data acquisition method of claim 2, wherein generating the target wireless signal strength from the plurality of wireless signal strengths acquired a plurality of times comprises:
and generating the target wireless signal strength according to the average value of a plurality of wireless signal strengths acquired for a plurality of times.
4. The data acquisition method of claim 2, wherein generating the target wireless signal strength from the plurality of wireless signal strengths acquired a plurality of times comprises:
sequentially sequencing a plurality of wireless signal strengths acquired for a plurality of times according to the signal strength;
and taking the wireless signal strength of the sequencing center as the target wireless signal strength.
5. The data acquisition method of claim 1, wherein the sending the radio frequency fingerprint data to a server comprises:
and periodically sending the radio frequency fingerprint acquisition data to the server at a preset time point based on a preset reporting period.
6. The data acquisition method according to claim 1, wherein the acquiring, based on the acquisition instruction of the server, radio frequency fingerprint information of the wireless communication device through a radio frequency signal comprises:
receiving an acquisition instruction from the server, wherein the acquisition instruction carries target identification information indicating radio frequency fingerprint acquisition equipment for acquiring radio frequency signals;
and if the target identification information is detected to contain the identification information of the radio frequency fingerprint acquisition equipment, acquiring the radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal.
7. The data acquisition method according to claim 6, wherein if the acquisition instruction carries first cycle configuration information for configuring a preset sampling cycle, the data acquisition method further comprises:
and configuring a preset sampling period based on the first period configuration information in the acquisition instruction.
8. A data acquisition device, comprising:
the acquisition unit is used for acquiring the radio frequency fingerprint information of the wireless communication equipment through the radio frequency signal based on the acquisition instruction of the server;
the generating unit is used for generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment;
the sending unit is used for sending the radio frequency fingerprint acquisition data to a server so that the server updates an offline fingerprint library of the wireless communication equipment according to the radio frequency fingerprint acquisition data;
and the updating unit is used for updating the generation rule of the radio frequency fingerprint acquisition data based on the update configuration information if the acquisition instruction carries the update configuration information for identifying the generation rule of the radio frequency fingerprint acquisition data, wherein the update configuration information is instruction information agreed between the server and the radio frequency fingerprint acquisition equipment, and the update configuration information identifies different generation rules by adopting different character strings.
9. A data acquisition system, comprising: the system comprises wireless communication equipment, radio frequency fingerprint acquisition equipment and a server;
the wireless communication device is used for transmitting a radio frequency signal, and the radio frequency signal comprises radio frequency fingerprint information of the wireless communication device;
the radio frequency fingerprint acquisition equipment is used for acquiring radio frequency fingerprint information of the wireless communication equipment through a radio frequency signal based on an acquisition instruction of the server; generating radio frequency fingerprint acquisition data according to the radio frequency fingerprint information and the identification information of the radio frequency fingerprint acquisition equipment; sending the radio frequency fingerprint acquisition data to a server; if the acquisition instruction carries update configuration information used for identifying the generation rule of the radio frequency fingerprint acquisition data, updating the generation rule of the radio frequency fingerprint acquisition data based on the update configuration information, wherein the update configuration information is instruction information agreed between the server and the radio frequency fingerprint acquisition equipment, and the update configuration information identifies different generation rules by adopting different character strings;
and the server is used for receiving the radio frequency fingerprint acquisition data from the radio frequency fingerprint acquisition equipment and updating an offline fingerprint database of the wireless communication equipment according to the radio frequency fingerprint acquisition data.
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| CN105282758A (en) * | 2015-09-06 | 2016-01-27 | 华南理工大学 | Self-adaptive dynamic construction method of WIFI indoor positioning system fingerprint database |
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| CN104639498B (en) * | 2013-11-06 | 2017-12-29 | 阿里巴巴集团控股有限公司 | The method, apparatus and system of a kind of fingerprint matching |
| CN106604363B (en) * | 2016-12-07 | 2019-07-30 | Oppo广东移动通信有限公司 | A kind of Wireless Fidelity Wi-Fi scan method, mobile terminal and storage medium |
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| CN104483658A (en) * | 2014-12-30 | 2015-04-01 | 杭州云象网络技术有限公司 | Indoor positioning method based on WiFi and geomagnetic field |
| CN105282758A (en) * | 2015-09-06 | 2016-01-27 | 华南理工大学 | Self-adaptive dynamic construction method of WIFI indoor positioning system fingerprint database |
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