CN111465096A - Wireless positioning method, device and storage medium - Google Patents
Wireless positioning method, device and storage medium Download PDFInfo
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- CN111465096A CN111465096A CN202010325751.6A CN202010325751A CN111465096A CN 111465096 A CN111465096 A CN 111465096A CN 202010325751 A CN202010325751 A CN 202010325751A CN 111465096 A CN111465096 A CN 111465096A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
Abstract
The application relates to a wireless positioning method, a wireless positioning device and a storage medium, which belong to the technical field of wireless communication, and the method comprises the following steps: sending a time synchronization signal to the service device so as to realize time synchronization between the positioning equipment and the mobile device when the service device is connected with the mobile device; sending time synchronization signals to the n detection devices to enable the positioning equipment to be time-synchronized with the n detection devices; receiving positioning parameters sent by m detection devices, wherein the positioning parameters comprise wireless signals and signal receiving time, m is an integer larger than 2 and is less than or equal to n; for each detection device in the m detection devices, determining the equipment distance between the mobile device and the detection device according to the signal sending time and the signal receiving time in the positioning parameters sent by the detection device; determining positioning information of the mobile device according to the m equipment distances; the problem that the number of the existing mobile devices accessing to the network is large can be solved; the number of devices accessing the network can be reduced, and network resources are saved.
Description
Technical Field
The application relates to a wireless positioning method, a wireless positioning device and a storage medium, and belongs to the technical field of wireless communication.
Background
With the development of wireless communication technology, in recent years, short-range wireless positioning technology has received more and more attention. The short-range wireless positioning technology is a technology for positioning the position of a specific target based on a short-range wireless communication mode.
The existing wireless positioning system comprises a signal transmitting device, a plurality of signal receiving devices and a server. The signal transmitting device is used for transmitting an acoustic signal; the signal receiving device is used for receiving the acoustic signal and sending the signal transmission time of the acoustic signal to the server; the server positions the position of the signal transmitting device according to the signal transmission time. Before wireless positioning, the time of the signal transmitting device and the time of the plurality of signal receiving devices need to be synchronized with the time of the server.
The existing time synchronization method includes: the signal transmitting device and the signal receiving device are accessed to a network through gateway equipment, and a server is also accessed to the network so as to realize the time synchronization of each device in all wireless positioning systems.
However, in the above method, each device needs to be accessed into the same network, and in actual implementation, the number of signal transmitting devices is usually large, and at this time, the number of devices accessing the network is also increased, thereby causing a problem of large occupied network resources.
Disclosure of Invention
The application provides a wireless positioning method, a wireless positioning device and a storage medium, which can solve the problem that the number of signal transmitting devices is usually large, and at the moment, the number of devices accessing the network is increased, so that the occupied network resources are large. The application provides the following technical scheme:
in a first aspect, a wireless positioning method is provided, where the positioning apparatus is communicatively connected to n detection devices and a serving device, respectively, and the detection devices are used to receive wireless signals sent by a mobile device during a wireless positioning process; the wireless signal comprises a device identification and a signal transmission time of the mobile device; the service device is used for providing non-positioning service for a plurality of mobile devices, and n is an integer greater than 2; the method comprises the following steps:
sending a time synchronization signal to the service device so as to realize time synchronization between the positioning equipment and the mobile device when the service device is connected with the mobile device;
sending the time synchronization signal to the n detection devices to enable the positioning equipment to be time-synchronized with the n detection devices;
receiving positioning parameters sent by m detection devices, wherein the positioning parameters comprise the wireless signals and signal receiving time, m is an integer larger than 2 and is less than or equal to n;
for each of the m detection devices, determining a device distance between the mobile device and the detection device according to the signal transmission time and the signal reception time in the positioning parameters transmitted by the detection device;
determining positioning information of the mobile device according to the m device distances.
Optionally, the determining the positioning information of the mobile apparatus according to the m device distances includes:
for each detection device in the m detection devices, determining a circle which takes the position of the detection device as a circle center and takes the equipment distance corresponding to the detection device as a radius;
determining an intersection of the m circles as the location information of the mobile device.
Optionally, when the number of the probe devices receiving the wireless signal is greater than m, the m probe devices are probe devices with signal receiving time of the wireless signal ordered in the first m bits.
Optionally, the determining the device distance between the mobile device and the probe device according to the signal sending time and the signal receiving time in the positioning parameters sent by the probe device includes:
determining a time difference between the signal transmission time and the signal reception time;
and multiplying the time difference by the transmission speed of the electromagnetic signal in the air to obtain the equipment distance.
Optionally, the method further comprises:
establishing communication connection with a user terminal;
receiving a service request sent by the user terminal based on the communication connection, wherein the service request carries the equipment identifier;
and sending the positioning information indicated by the equipment identification to the user terminal.
Optionally, the method is used in a service apparatus, the service apparatus is connected with the positioning device in a communication manner, and the service apparatus is used for providing non-positioning service for a plurality of mobile apparatuses; the method comprises the following steps:
receiving a time synchronization signal sent by the positioning equipment;
when the positioning equipment is connected with the mobile device, the time synchronization signal is sent to the mobile device so as to realize time synchronization between the positioning equipment and the mobile device; the positioning device is used for receiving positioning parameters sent by m detection devices after time synchronization, the detection devices are used for receiving wireless signals sent by the mobile device in a wireless positioning process, the wireless signals comprise device identifications and signal sending time of the mobile device, the positioning parameters comprise the wireless signals and signal receiving time, and m is an integer greater than 2; for each of the m detection devices, determining a device distance between the mobile device and the detection device according to the signal transmission time and the signal reception time in the positioning parameters transmitted by the detection device; determining positioning information of the mobile device according to the m device distances.
In a second aspect, a wireless positioning apparatus is provided, for use in positioning a device, the apparatus comprising:
the first synchronization module is used for sending a time synchronization signal to a service device so as to realize the time synchronization of the positioning equipment and the mobile device when the service device is connected with the mobile device;
a second synchronization module, configured to send the time synchronization signal to n detection apparatuses, so as to perform time synchronization between the positioning apparatus and the n detection apparatuses;
the parameter receiving module is used for receiving positioning parameters sent by the m detection devices, wherein the positioning parameters comprise wireless signals and signal receiving time, m is an integer larger than 2, and m is not larger than n;
a distance determining module, configured to determine, for each of the m detecting devices, a device distance between the mobile device and the detecting device according to a signal sending time and the signal receiving time in the positioning parameter sent by the detecting device;
and the positioning determining module is used for determining the positioning information of the mobile device according to the m equipment distances.
In a third aspect, a wireless positioning apparatus is provided, for use in a serving apparatus, the apparatus comprising:
the signal receiving module is used for receiving a time synchronization signal sent by the positioning equipment;
and the signal sending module is used for sending the time synchronization signal to the mobile device when the positioning equipment is connected with the mobile device so as to realize time synchronization between the positioning equipment and the mobile device.
In a fourth aspect, a wireless positioning apparatus is provided, the apparatus comprising a processor and a memory; the memory has stored therein a program that is loaded and executed by the processor to implement the wireless positioning method according to the first aspect.
In a fifth aspect, a computer-readable storage medium is provided, in which a program is stored, which, when being executed by the processor, is adapted to carry out the wireless positioning method according to the first aspect.
The beneficial effect of this application lies in: by transmitting a time synchronization signal to a serving device; sending time synchronization signals to the n detection devices; receiving positioning parameters sent by m detection devices; for each detection device in the m detection devices, determining the equipment distance between the mobile device and the detection device according to the signal sending time and the signal receiving time in the positioning parameters sent by the detection device; determining positioning information of the mobile device according to the m equipment distances; the problem that when the number of the mobile devices is large, the number of the equipment accessed to the network is increased, so that the occupied network resources are large can be solved; the service device can provide non-positioning service for the plurality of mobile devices, so that the plurality of mobile devices are not required to be in communication connection with the positioning equipment, the number of equipment connected with the positioning equipment can be reduced, and network resources are saved.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clear and clear, and to implement the technical solutions according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a wireless positioning system according to an embodiment of the present application;
fig. 2 is a flowchart of a wireless positioning method according to an embodiment of the present application;
fig. 3 is a schematic view of a wireless positioning method according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating position calculation of a wireless positioning method according to an embodiment of the present application;
FIG. 5 is a block diagram of a wireless location device provided by one embodiment of the present application;
FIG. 6 is a block diagram of a wireless location device provided by one embodiment of the present application;
fig. 7 is a block diagram of a wireless location device provided by one embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
Fig. 1 is a schematic structural diagram of a wireless positioning system 100 according to an embodiment of the present application, as shown in fig. 1, the system at least includes: a positioning apparatus 110, n detection devices 120, a mobile device 130 and a serving device 140.
The mobile device 130 refers to a device that can move within the positioning area and transmit a wireless signal to the detecting device 120 after entering the positioning area.
In this embodiment, the mobile device 130 is configured to transmit wireless signals during operation. The wireless signal includes, among other things, the device identification and the signal transmission time of the mobile unit 130. The device identification is used to uniquely identify the mobile apparatus 130, and the device identification may be device information of the mobile apparatus 130, such as: ID 001; or a network identifier, etc., and the present embodiment does not limit the type of the device identifier.
Optionally, the wireless signal is a signal broadcast by the mobile device 130.
The detecting device 120 refers to a device fixedly disposed in the positioning region for receiving signals.
In this embodiment, the n detection devices 120 receive the wireless signals sent by the mobile device 130 during the wireless positioning process; the positioning parameters are sent to the positioning device 110. The positioning parameters comprise wireless signals and signal receiving time, and n is an integer larger than 2.
In order to ensure that the time between the detecting device 120, the mobile device 130 and the positioning apparatus 110 is kept synchronized, a time synchronization process is required before wireless positioning is performed.
In this application, the time synchronization process includes: time synchronization between the detecting means 120 and the positioning apparatus 110, and time synchronization between the mobile means 130 and the positioning apparatus 110.
For time synchronization between the mobile apparatus 130 and the positioning device 110, the mobile apparatus 130 achieves time synchronization with the positioning device 110 through the service apparatus 140.
The service device 140 is a device for providing non-location services to the plurality of mobile devices 130. The non-location service refers to other services besides the location service, such as: the non-location services include charging services and/or time synchronization services, etc. The time synchronization service is: a service for time synchronization of the mobile device 130 with the positioning apparatus 110 is implemented. The charging service is: the mobile device 130 is used for performing power supply service.
In this embodiment, the non-location services provided by the service device 140 include time synchronization services. When the service device 140 provides the non-location service for the mobile device 130, the service device 140 is connected (wired or wireless) to the mobile device 130, and the service device 140 is communicatively connected (wired or wireless) to the location equipment 110. At this time, the positioning apparatus 110 transmits a time synchronization signal to the service device 140. Accordingly, the service device 140 is configured to transmit the time synchronization signal to the mobile device 130 when connecting with the mobile device 130.
In this way, the service device 140 is connected to the mobile device 130 to achieve time synchronization between the positioning apparatus 110 and the mobile device 130.
For the time synchronization between the detection device 120 and the positioning apparatus 110, the positioning apparatus 110 is in communication connection with the n detection devices 120. At this time, the positioning apparatus 110 transmits a time synchronization signal to the n detecting devices 120; accordingly, each of the detecting devices 120 receives the time synchronization signal transmitted from the positioning apparatus 110. In this way, time synchronization is achieved between the positioning apparatus 110 and the n detection devices 120.
Optionally, in the present application, the time synchronization signal includes a device time of the positioning device 110. The device time of the positioning device 110 may be a network time; or the time set in the positioning device 110 by the user, the present embodiment does not limit the setting manner of the device time of the positioning device 110.
Optionally, the positioning apparatus 110 performs time synchronization with the mobile apparatus 130 through the service apparatus 140 first, and then performs time synchronization with the detection apparatus 120; alternatively, the time synchronization is performed with the probe device 120 first, and then with the service device 140, and the time synchronization sequence is not limited in this embodiment.
The positioning apparatus 110 is used to determine positioning information of the mobile device 130. Alternatively, the positioning device 110 may be a terminal or a server; among them, the terminal includes but is not limited to: a computer, a mobile phone, a tablet computer, a wearable device, a notebook computer, etc., and the present embodiment does not limit the device type of the positioning device 110.
In this embodiment, the positioning device 110 is configured to receive the positioning parameters sent by the m detection apparatuses 120 after performing time synchronization; for each of the m probe devices 120, determining the device distance between the mobile device 130 and the probe device 120 according to the signal transmission time and the signal reception time in the positioning parameters transmitted by the probe device 120; the positioning information of the mobile device 130 is determined from the m device distances. m is an integer greater than 2, and m is not more than n.
Optionally, the wireless location system 100 further comprises a user terminal 150. The user terminal 150 may be a mobile phone, a tablet computer, a wearable device, etc., and the embodiment does not limit the type of the user terminal 150.
Optionally, the user terminal 150 establishes a communication connection with the mobile apparatus 130, and acquires the device identifier of the mobile apparatus 130 through the communication connection. The communication connection manner may be Near Field Communication (NFC) or bluetooth pairing, or two-dimensional code scanning, or manual input by a user, and the connection manner between the user terminal 150 and the mobile device 130 is not limited in this embodiment.
Accordingly, the positioning device 110 is also used to establish a communication connection with the user terminal 150; receiving a service request sent by the user terminal 150 based on the communication connection, wherein the service request carries an equipment identifier; the positioning information indicated by the device identity is sent to the user terminal 150.
According to the wireless positioning system provided by the embodiment, time synchronization is performed among the positioning device, the n detection devices and the service device, and the service device can provide non-positioning service for the plurality of mobile devices, so that the plurality of mobile devices are not required to be in communication connection with the positioning device, the number of devices connected with the positioning device can be reduced, and network resources are saved.
Next, a wireless positioning method provided by the present application is described.
Fig. 2 is a flowchart of a wireless positioning method according to an embodiment of the present application, which is described as an example of the method being used in the wireless positioning system 100 shown in fig. 1, and the method at least includes the following steps:
step 201, the positioning device sends a time synchronization signal to the service apparatus, so that the positioning device and the mobile apparatus perform time synchronization when the service apparatus is connected with the mobile apparatus.
The positioning device is communicatively coupled to the service device. The service device is used for providing non-positioning service for a plurality of mobile devices. The non-location service refers to other services besides the location service, such as: the non-location services include charging services and/or time synchronization services, etc. The time synchronization service is: and the service of time synchronization between the mobile device and the positioning equipment is realized. The charging service is: the mobile device can be used for supplementing the electric quantity.
Optionally, the time synchronization signal comprises a device time of the positioning device. The device time of the positioning device may be a network time; or the time set by the user in the positioning device, the setting mode of the device time of the positioning device is not limited in this embodiment.
In step 202, the service device receives a time synchronization signal sent by the positioning apparatus.
And step 203, when the mobile device is connected, the service device sends the time synchronization signal to the mobile device so as to realize the time synchronization between the positioning equipment and the mobile device.
Step 204, the positioning apparatus sends a time synchronization signal to the n detection devices, so that the positioning apparatus and the n detection devices perform time synchronization, where n is an integer greater than 2.
The detecting device is a device fixedly arranged in the positioning area and used for transmitting and receiving signals. The n detection devices are respectively in communication connection with the positioning equipment.
Step 205, the detecting device receives a time synchronization signal sent by the positioning apparatus to implement time synchronization with the positioning apparatus.
Step 206, the mobile device sends a wireless signal while operating in the positioning area.
The wireless signal includes a device identification and a signal transmission time of the mobile device. The device identification is used to uniquely identify the mobile apparatus, and may be device information of the mobile apparatus, such as: ID 001; or a network identifier, etc., and the present embodiment does not limit the type of the device identifier.
Optionally, the wireless signal is a signal broadcast by the mobile device.
Step 207, detecting the wireless signals by n detection devices; and for the detection device which detects the wireless signal, sending the positioning parameters to the positioning equipment.
Optionally, the detection of the wireless signal is continued for n-m detection devices that have not detected the wireless signal.
And 208, the positioning equipment receives the positioning parameters sent by m detection devices, wherein m is an integer greater than 2 and is less than or equal to n.
The positioning parameters comprise wireless signals and signal receiving time.
In one example, the value of m is a preset constant, and when the number of the detecting devices receiving the wireless signal is greater than m, the m detecting devices are detecting devices with signal receiving time of the wireless signal ordered in the first m bits. The value of m may be 3, 5, etc., and the value of m is not limited in this embodiment.
In another example, the value of m is the number of all probing devices that transmit the positioning parameter based on the wireless signal after receiving the same wireless signal.
Step 209, for each of the m detecting devices, the positioning apparatus determines the apparatus distance between the mobile device and the detecting device according to the signal sending time and the signal receiving time in the positioning parameters sent by the detecting device.
For each detecting device, the positioning equipment determines the time difference between the sending time and the receiving time of the signal sent by the detecting device; and multiplying the time difference by the transmission speed of the electromagnetic signal in the air to obtain the equipment distance.
Step 210, the positioning device determines the positioning information of the mobile device according to the m device distances.
In one example, m is an integer greater than or equal to 3. For each detection device in the m detection devices, determining a circle which takes the position of the detection device as the center of a circle and the equipment distance corresponding to the detection device as the radius; the intersection of the m circles is determined as the location information of the mobile device.
To more clearly describe the above process of determining the positioning information of the mobile device according to the m device distances, reference is made to fig. 3-4, where m is 3 in fig. 3 and 4 as an example.
Such as: the value of m is 3. T1, T2 and T3 are probes, and Y is a moving device. For the detection device T1, after the wireless signal sent by Y is received by the T1, the wireless signal and the signal receiving time of the wireless signal are sent to the positioning equipment; the positioning equipment obtains the transmission time length T1 of the wireless signal according to the signal receiving time and the signal sending time sent by the T1, and multiplies the transmission time length T1 by the transmission speed c of the electromagnetic signal to obtain the equipment distance r 1. For the detection device T2, after the wireless signal sent by Y is received by the T2, the wireless signal and the signal receiving time of the wireless signal are sent to the positioning equipment; the positioning equipment obtains the transmission time length T2 of the wireless signal according to the signal receiving time and the signal sending time sent by the T2, and multiplies the transmission time length T2 by the transmission speed c of the electromagnetic signal to obtain the equipment distance r 2. For the detection device T3, after the wireless signal sent by Y is received by the T3, the wireless signal and the signal receiving time of the wireless signal are sent to the positioning equipment; the positioning equipment obtains the transmission time length T3 of the wireless signal according to the signal receiving time and the signal sending time sent by the T3, and multiplies the transmission time length T3 by the transmission speed c of the electromagnetic signal to obtain the equipment distance r 3.
After the equipment distance is obtained, determining a circle by taking the position of T1 as the center of a circle and r1 as the radius; determining a circle by taking the position of T2 as a circle center and r2 as a radius; determining a circle by taking the position of T3 as a circle center and r3 as a radius; the intersection of the 3 circles is determined as the positioning information of Y.
In other examples, m is an integer greater than 2. For each detection device, determining a position of the mobile device based on the position of the detection device and a device distance between the mobile device and the detection device; an average value of the positions of the mobile devices determined based on the respective detecting means is determined as the positioning information of the mobile device.
Of course, the positioning information of the mobile device may also be determined in other manners, and the determining manner of the positioning information is not limited in this embodiment.
It should be added that, in the present application, the positions of the n detecting devices are pre-stored in the positioning apparatus.
Optionally, the positioning device further establishes a communication connection with the user terminal; receiving a service request sent by a user terminal based on communication connection, wherein the service request carries an equipment identifier; and sending the positioning information indicated by the equipment identification to the user terminal.
The user terminal may be a mobile phone, a tablet computer, a wearable device, and the like, and the embodiment does not limit the type of the user terminal.
The device identifier in the service request sent by the user terminal is obtained by the user terminal in advance. The acquisition mode comprises the following steps: the user terminal establishes a communication connection with the mobile device, and acquires the equipment identifier of the mobile device based on the communication connection. Optionally, the Communication connection manner may be through Near Field Communication (NFC) or bluetooth pairing or scanning a two-dimensional code or manual input by a user, and this embodiment does not limit the Communication connection manner.
In summary, the wireless positioning method provided in this embodiment transmits the time synchronization signal to the service device; sending time synchronization signals to the n detection devices; receiving positioning parameters sent by m detection devices; for each detection device in the m detection devices, determining the equipment distance between the mobile device and the detection device according to the signal sending time and the signal receiving time in the positioning parameters sent by the detection device; determining positioning information of the mobile device according to the m equipment distances; the problem that when the number of the mobile devices is large, the number of the equipment accessed to the network is increased, so that the occupied network resources are large can be solved; the service device can provide non-positioning service for the plurality of mobile devices, so that the plurality of mobile devices are not required to be in communication connection with the positioning equipment, the number of equipment connected with the positioning equipment can be reduced, and network resources are saved.
Alternatively, step 201, step 204, step 208, step 209 and step 210 may be implemented separately as method embodiments on the positioning device side; step 202 and step 203 may be implemented separately as method embodiments on the service device side; step 206 may be implemented separately as a mobile device-side method embodiment; step 207 and step 205 may be implemented separately as a sonde-side method embodiment.
Fig. 5 is a block diagram of a wireless positioning apparatus according to an embodiment of the present application, and this embodiment takes the positioning device 110 applied in the wireless positioning system 100 shown in fig. 1 as an example for explanation. The device at least comprises the following modules: a first synchronization module 501, a second synchronization module 502, a parameter receiving module 503, a distance determining module 504, and a location determining module 505.
A first synchronization module 501, configured to send a time synchronization signal to a service apparatus, so that when the service apparatus is connected to a mobile apparatus, time synchronization between the positioning device and the mobile apparatus is achieved;
a second synchronization module 502, configured to send the time synchronization signal to n detection apparatuses, so as to synchronize the positioning apparatus with the n detection apparatuses in time;
a parameter receiving module 503, configured to receive positioning parameters sent by the m detection devices, where the positioning parameters include wireless signals and signal receiving time, m is an integer greater than 2, and m is not greater than n;
a distance determining module 504, configured to determine, for each of the m detecting devices, a device distance between the mobile device and the detecting device according to the signal sending time and the signal receiving time in the positioning parameter sent by the detecting device;
a location determining module 505, configured to determine location information of the mobile apparatus according to the m device distances.
Fig. 6 is a block diagram of a wireless positioning apparatus according to an embodiment of the present application, and the embodiment takes the apparatus as an example for being applied to the service apparatus 140 in the wireless positioning system 100 shown in fig. 1. The device at least comprises the following modules: a signal receiving module 601 and a signal transmitting module 602.
A signal receiving module 601, configured to receive a time synchronization signal sent by a positioning device;
the signal sending module 602 is configured to send a time synchronization signal to the mobile apparatus when the positioning apparatus is connected to the mobile apparatus, so as to implement time synchronization between the positioning apparatus and the mobile apparatus.
For relevant details reference is made to the above-described method embodiments.
It should be noted that: in the above embodiment, when performing wireless positioning, the wireless positioning device is exemplified by only dividing the functional modules, and in practical applications, the functions may be allocated to different functional modules according to needs, that is, the internal structure of the wireless positioning device is divided into different functional modules to complete all or part of the functions described above. In addition, the wireless positioning device and the wireless positioning method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
Fig. 7 is a block diagram of a wireless positioning apparatus provided in an embodiment of the present application, which may be an apparatus including a positioning device in the wireless positioning system shown in fig. 1, such as: a smartphone, a tablet, a laptop, a desktop, or a server. The wireless positioning device may also be referred to as a user equipment, a portable terminal, a laptop terminal, a desktop terminal, a control terminal, etc., and this embodiment is not limited thereto. The apparatus includes at least a processor 701 and a memory 702.
Processor 701 may include one or more Processing cores, such as a 4-core processor, an 8-core processor, etc. processor 701 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), a P L a (Programmable logic Array), processor 701 may also include a main processor, which is a processor for Processing data in a wake-up state, also referred to as a CPU (Central Processing Unit), and a coprocessor, which is a low-power processor for Processing data in a standby state.
Memory 702 may include one or more computer-readable storage media, which may be non-transitory. Memory 702 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 702 is used to store at least one instruction for execution by processor 701 to implement a wireless location method provided by method embodiments herein.
In some embodiments, the wireless positioning device may further include: a peripheral interface and at least one peripheral. The processor 701, memory 702, and peripheral interface may be connected by bus or signal lines. Each peripheral may be connected to the peripheral interface via a bus, signal line, or circuit board. Illustratively, peripheral devices include, but are not limited to: radio frequency circuit, touch display screen, audio circuit, power supply, etc.
Of course, the wireless positioning device may also include fewer or more components, which is not limited by the embodiment.
Optionally, the present application further provides a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the wireless positioning method of the foregoing method embodiment.
Optionally, the present application further provides a computer product, which includes a computer-readable storage medium, in which a program is stored, and the program is loaded and executed by a processor to implement the wireless positioning method of the foregoing method embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A wireless positioning method is used in positioning equipment which is respectively connected with n detection devices and a service device in a communication way, wherein the detection devices are used for receiving wireless signals sent by a mobile device in a wireless positioning process; the wireless signal comprises a device identification and a signal transmission time of the mobile device; the service device is used for providing non-positioning service for a plurality of mobile devices, and n is an integer greater than 2; the method comprises the following steps:
sending a time synchronization signal to the service device so as to realize time synchronization between the positioning equipment and the mobile device when the service device is connected with the mobile device;
sending the time synchronization signal to the n detection devices to enable the positioning equipment to be time-synchronized with the n detection devices;
receiving positioning parameters sent by m detection devices, wherein the positioning parameters comprise the wireless signals and signal receiving time, m is an integer larger than 2 and is less than or equal to n;
for each of the m detection devices, determining a device distance between the mobile device and the detection device according to the signal transmission time and the signal reception time in the positioning parameters transmitted by the detection device;
determining positioning information of the mobile device according to the m device distances.
2. The method of claim 1, wherein said determining location information for said mobile device based on m device distances comprises:
for each detection device in the m detection devices, determining a circle which takes the position of the detection device as a circle center and takes the equipment distance corresponding to the detection device as a radius;
determining an intersection of the m circles as the location information of the mobile device.
3. The method of claim 1, wherein the m sounding devices are the sounding devices with the signal reception time of the wireless signal ordered in the top m bits when the number of sounding devices receiving the wireless signal is greater than m.
4. The method of claim 1, wherein said determining the device distance between the mobile device and the probe device according to the signal transmission time and the signal reception time in the positioning parameters transmitted by the probe device comprises:
determining a time difference between the signal transmission time and the signal reception time;
and multiplying the time difference by the transmission speed of the electromagnetic signal in the air to obtain the equipment distance.
5. The method of claim 1, wherein the method further comprises:
establishing communication connection with a user terminal;
receiving a service request sent by the user terminal based on the communication connection, wherein the service request carries the equipment identifier;
and sending the positioning information indicated by the equipment identification to the user terminal.
6. A wireless positioning method, used in a serving device, the serving device being communicatively coupled to a positioning apparatus, the serving device being configured to provide a non-positioning service to a plurality of mobile devices; the method comprises the following steps:
receiving a time synchronization signal sent by the positioning equipment;
when the positioning equipment is connected with the mobile device, the time synchronization signal is sent to the mobile device so as to realize time synchronization between the positioning equipment and the mobile device; the positioning device is used for receiving positioning parameters sent by m detection devices after time synchronization, the detection devices are used for receiving wireless signals sent by the mobile device in a wireless positioning process, the wireless signals comprise device identifications and signal sending time of the mobile device, the positioning parameters comprise the wireless signals and signal receiving time, and m is an integer greater than 2; for each of the m detection devices, determining a device distance between the mobile device and the detection device according to the signal transmission time and the signal reception time in the positioning parameters transmitted by the detection device; determining positioning information of the mobile device according to the m device distances.
7. A wireless positioning apparatus, for use in a positioning device, the apparatus comprising:
the first synchronization module is used for sending a time synchronization signal to a service device so as to realize the time synchronization of the positioning equipment and the mobile device when the service device is connected with the mobile device;
a second synchronization module, configured to send the time synchronization signal to n detection apparatuses, so as to perform time synchronization between the positioning apparatus and the n detection apparatuses;
the parameter receiving module is used for receiving positioning parameters sent by the m detection devices, wherein the positioning parameters comprise wireless signals and signal receiving time, m is an integer larger than 2, and m is not larger than n;
a distance determining module, configured to determine, for each of the m detecting devices, a device distance between the mobile device and the detecting device according to a signal sending time and the signal receiving time in the positioning parameter sent by the detecting device;
and the positioning determining module is used for determining the positioning information of the mobile device according to the m equipment distances.
8. A wireless location apparatus, for use in a serving apparatus, the apparatus comprising:
the signal receiving module is used for receiving a time synchronization signal sent by the positioning equipment;
and the signal sending module is used for sending the time synchronization signal to the mobile device when the positioning equipment is connected with the mobile device so as to realize time synchronization between the positioning equipment and the mobile device.
9. A wireless positioning apparatus, characterized in that the apparatus comprises a processor and a memory; the memory has stored therein a program that is loaded and executed by the processor to implement the wireless location method of any of claims 1 to 6.
10. A computer-readable storage medium, in which a program is stored, which, when being executed by a processor, is adapted to carry out a wireless positioning method according to any one of claims 1 to 6.
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