A wireless positioning device, positioning method and positioning system

Abstract

The present invention is applicable to the field of wireless communication technology, and provides a wireless positioning device, a positioning method and a positioning system, wherein the wireless positioning device includes a housing, and a processor, a signal generator and a transceiver antenna arranged in the housing: the housing is composed of a first part and a second part, the first part is made of metal material, and the second part is made of non-metal material; the processor is used to: generate a positioning signal through the signal generator; broadcast the positioning signal generated by the signal generator through the transceiver antenna; when the signal strength value returned by the mobile terminal based on the positioning signal is received through the transceiver antenna, the location information of the mobile terminal is determined based on the signal strength value. The first part of the housing of the present invention has the function of shielding the positioning signal, which can reduce the interference signal received by the mobile terminal, thereby improving the positioning accuracy.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless communications, and in particular relates to a wireless positioning device, a positioning method and a positioning system. Background Art

[0002] The Global Positioning System (GPS) is the most widely used positioning system. However, in some special indoor environments, such as parking lots, large shopping malls, libraries and warehouses, the positioning accuracy of GPS in indoor environments is low because the GPS signal is blocked. Driven by users' demand for positioning accuracy, positioning services based on wireless positioning devices have gradually developed. Positioning services based on wireless positioning devices are to deploy multiple wireless positioning devices with wireless communication capabilities within the area where positioning is required. Through the interaction between the wireless positioning devices and the mobile terminal, the location of the mobile terminal can be determined to achieve the positioning function.

[0003] At present, in the positioning service based on wireless positioning devices, the wireless positioning device transmits signals in all directions. When the mobile terminal enters the signal transmission range of the wireless positioning device, the wireless positioning device communicates with the mobile terminal to obtain parameter information (such as received signal strength, signal arrival time, signal arrival direction, etc.), and then the server calculates the position of the mobile terminal based on the parameter information. Since the wireless positioning device transmits positioning signals in all directions, when the positioning signal reaches the mobile terminal via multiple paths, the various component fields of the positioning signal arrive at the mobile terminal at different times, and the superposition of their respective phases will cause multipath interference to the signal, making the obtained parameter information inaccurate, and thus the positioning accuracy of the mobile terminal is not high. Summary of the invention

[0004] In view of this, the embodiments of the present invention provide a wireless positioning device, a positioning method and a positioning system, which can effectively reduce the interference signals received by the mobile terminal and enhance the signal strength, thereby improving the positioning accuracy.

[0005] A first aspect of an embodiment of the present invention provides a wireless positioning device, comprising a housing, and a processor, a signal generator, and a signal transceiving antenna arranged in the housing: the housing is composed of a first part and a second part, the first part is made of a metal material, the second part is made of a non-metal material, and the signal transceiving antenna is arranged on the inner side of the second part;

[0006] The processor is used to: generate a positioning signal through the signal generator; broadcast the positioning signal generated by the signal generator through the transceiver antenna; when a signal strength value returned by the mobile terminal based on the positioning signal is received through the transceiver antenna, determine the location information of the mobile terminal based on the signal strength value, wherein the signal strength value indicates the signal strength of the positioning signal received by the mobile terminal.

[0007] Based on the first aspect of the present invention, in a first possible implementation manner, the signal transmitting and receiving antenna is a signal transmitting and receiving directional antenna.

[0008] Based on the first aspect of the present invention or the first possible implementation method of the first aspect of the present invention, in a second possible implementation method, the signal generator includes: a first circuit module for generating an original signal, and a second circuit module for amplifying the gain of the original signal generated by the first circuit module to generate the positioning signal; wherein the input end of the second circuit module is connected to the output end of the first circuit module.

[0009] A second aspect of an embodiment of the present invention provides a positioning method, which is applied to a wireless positioning device, wherein the wireless positioning device includes a housing, and a signal generator and a signal transceiver antenna arranged in the housing: the housing is composed of a first part and a second part, the first part is made of a metal material, the second part is made of a non-metal material, and the signal transceiver antenna is arranged on the inner side of the second part;

[0010] The positioning method comprises:

[0011] Generate a positioning signal by means of the signal generator;

[0012] broadcasting the positioning signal generated by the signal generator through the signal transceiver antenna;

[0013] When a signal strength value returned by the mobile terminal based on the positioning signal is received through the transceiver antenna, the location information of the mobile terminal is determined based on the signal strength value, wherein the signal strength value indicates the signal strength of the positioning signal received by the mobile terminal.

[0014] Based on the second aspect of the present invention, in a first possible implementation manner, the signal transmitting and receiving antenna is a signal transmitting and receiving directional antenna.

[0015] Based on the second aspect or the first possible implementation manner of the second aspect of the present invention, in a second possible implementation manner, the signal generator includes: a first circuit module and a second circuit module;

[0016] Generating a positioning signal by the signal generator comprises:

[0017] Generate an original signal through the first circuit module;

[0018] The original signal is gain-amplified by the second circuit module to obtain the positioning signal.

[0019] Based on the second aspect or the first possible implementation manner of the second aspect of the present invention, in a third possible implementation manner, determining the location information of the mobile terminal based on the signal strength value includes:

[0020] A positioning indication signal is sent to a server, wherein the positioning indication signal carries the signal strength value, and the positioning indication signal is used to instruct the server to determine the location information of the mobile terminal based on the signal strength value carried in the positioning indication signal.

[0021] Based on the second aspect or the first possible implementation manner of the second aspect of the present invention, in a fourth possible implementation manner, determining the location information of the mobile terminal based on the signal strength value further includes:

[0022] Based on all the location information of the mobile terminal obtained within a preset time period, generating a movement trajectory of the mobile terminal within the preset time period;

[0023] The motion trajectory is sent to the mobile terminal.

[0024] A third aspect of an embodiment of the present invention provides a positioning system, comprising: two or more wireless positioning devices; the wireless positioning devices are the wireless positioning devices mentioned in the first aspect or any possible implementation of the first aspect.

[0025] Based on the third aspect, in a first possible implementation manner, the positioning system further includes: a server respectively connected to the two or more wireless positioning devices.

[0026] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: in the technical solution of the present invention, the wireless positioning device includes a shell, and a processor, a signal generator and a signal transmitting and receiving antenna arranged in the shell: the shell is composed of a first part and a second part, the first part is made of metal material, and the second part is made of non-metallic material. Since the first part has the function of shielding the positioning signal, the area where the first part shields the signal is a non-radiation area, and the area corresponding to the second part is a radiation area of ​​the signal, so that the positioning area can be effectively divided into a radiation area and a non-radiation area, and the positioning signal is only broadcast in the radiation area. The interference signal received by the mobile terminal will also be reduced, and compared with omnidirectional radiation, radiation energy is saved, and the signal strength value in the radiation area will be very high, and the obtained signal strength value will be more accurate, thereby improving the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1-a is a schematic diagram of the structure of a wireless positioning device provided by an embodiment of the present invention;

[0029] Figure 1-b The present invention provides Figure 1-a A specific structural schematic diagram of the middle structure 101;

[0030] Figure 2 is a schematic diagram of an implementation flow of a positioning method provided by an embodiment of the present invention;

[0031] Figure 3 is an example diagram of a positioning system provided by an embodiment of the present invention; DETAILED DESCRIPTION

[0032] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0033] In order to illustrate the technical solution of the present invention, a specific embodiment is provided below for illustration.

[0034] Embodiment 1

[0035] A schematic diagram of the structure of a wireless positioning device provided by an embodiment of the present invention is as follows: Figure 1-a As shown, the wireless positioning device in the embodiment of the present invention includes:

[0036] The housing 101 is as follows Figure 1-bThe shell 101 shown is composed of a first part 1011 and a second part 1012: Optionally, the first part 1011 is made of metal material, and when a signal passes through the first part 1011, the first part 1011 has the function of shielding the signal, so that the signal cannot radiate to the area corresponding to the first part 1011, thereby making the area corresponding to the first part 1011 a non-radiation area of ​​the signal; the second part 1012 is made of non-metallic material, and when a signal passes through the second part 1012, the signal can pass through, thereby making the area corresponding to the second part 1012 a radiation area of ​​the signal.

[0037] The signal generator 102 is mainly used to generate a positioning signal;

[0038] Optionally, the signal generator 102 includes: a first circuit module for generating an original signal, and a second circuit module for amplifying the gain of the original signal generated by the first circuit module to generate the positioning signal; wherein the input end of the second circuit module is connected to the output end of the first circuit module.

[0039] The signal transmitting and receiving antenna 103 is arranged inside the second part 1012 of the housing 101 and is used for transmitting and receiving signals;

[0040] Optionally, the above-mentioned transceiver signal antenna 103 is a directional transceiver signal antenna, which is used to radiate signals to a specified spatial area, and cooperate with the above-mentioned shell 101 to radiate signals in a fixed direction. Since the directional transceiver signal antenna has the characteristics of directional radiation signals, the directional transceiver signal antenna can be set on the inner side of the second part 1012 of the above-mentioned shell 101, and the radiation direction of the directional transceiver signal antenna is toward the radiation area corresponding to the second part 1012 of the above-mentioned shell 101, so that among the signals radiated by the directional transceiver signal antenna, only a small part of the signals are shielded by the non-radiation area corresponding to the first part 1011 of the above-mentioned shell 101, and most of the signals can be radiated through the radiation area corresponding to the second part 1012 of the above-mentioned shell 101. In this way, the energy of the signal radiated by the directional transceiver signal antenna is more concentrated, and the signal radiation distance is farther.

[0041] The processor 104 can be used to coordinate the operation of the entire wireless positioning device, for example, to process the data collected by the wireless positioning device and the data sent by other devices: by receiving the positioning signal generated by the signal generator 102; transmitting the positioning signal to the transceiver antenna 103, and the transceiver antenna 103 broadcasts the positioning signal generated by the above-mentioned signal generator 102; when the signal strength value returned by the mobile terminal based on the positioning signal is received through the above-mentioned transceiver antenna 103, the location information of the mobile terminal is determined based on the signal strength value, wherein the signal strength value indicates the signal strength of the positioning signal received by the mobile terminal.

[0042] In this embodiment, the processor 104 receives the positioning signal generated by the signal generator 102 and may also process the positioning signal. The processing includes but is not limited to modulation and demodulation (e.g., frequency modulation) of the positioning signal. When the positioning signal generated by the signal generator 102 is not suitable for transmission by the transceiver antenna 103, the processor 104 may modulate the positioning signal into a modulated positioning signal suitable for transmission by the transceiver antenna 103, and transmit the modulated positioning signal to the transceiver antenna 103. The transceiver antenna 103 broadcasts the modulated positioning signal generated by the signal generator 102 and modulated by the processor 104. When the signal strength value returned by the positioning signal received by the transceiver antenna 103 needs to be demodulated, the demodulation may be performed by the processor.

[0043] In one application scenario, a reference position may be selected in advance in the area to be positioned, and the signal strength value of the positioning signal that can be received at each reference position may be measured. Then, a reference table may be established and stored in the wireless positioning device, and the reference table may include: information on the correspondence between the signal strength value and the position information. The above-mentioned determination of the position information of the mobile terminal based on the signal strength value may include: when the signal strength value returned by the mobile terminal based on the positioning signal is received through the above-mentioned transceiver antenna 103, the position information of the above-mentioned mobile terminal is determined according to the information on the correspondence between the signal strength value and the position information contained in the above-mentioned reference table.

[0044] In another application scenario, when the signal strength value returned by the mobile terminal based on the positioning signal is received through the above-mentioned transceiver antenna 103, the location information of the mobile terminal is determined according to the path loss model of the positioning signal, wherein the path loss model is an existing technology and will not be repeated here.

[0045] Alternatively, the above-mentioned determination of the location information of the mobile terminal is executed by the server connected to the above-mentioned wireless positioning device triggered by the processor 104, and the above-mentioned determination of the location information of the mobile terminal based on the signal strength value may include: sending a positioning indication signal to the server, wherein the positioning indication signal carries the signal strength value, and the positioning indication signal is used to instruct the server to determine the location information of the mobile terminal based on the signal strength value carried in the positioning indication signal. Under the instruction of the positioning indication signal, the server determines the location information of the mobile terminal based on the signal strength value carried in the positioning indication signal, and returns the determined location information of the mobile terminal to the wireless positioning device.

[0046] It can be seen that the wireless positioning device in the embodiment of the present invention includes a shell 101, and a processor 104, a signal generator 102 and a signal transmitting and receiving antenna 103 arranged in the shell 101: the shell is composed of a first part 1011 and a second part 1012, the first part 1011 is made of metal material, and the second part 1012 is made of non-metallic material. Since the first part 1011 has the function of shielding the positioning signal, the area where the first part 1011 shields the signal is a non-radiation area, and the second part 1012 corresponds to the positioning area as the radiation area of ​​the signal, so that the positioning area can be effectively divided into the radiation area and the non-radiation area of ​​the wireless positioning device, and the positioning signal is only broadcast in the radiation area. The interference signal received by the mobile terminal will also be reduced, and compared with omnidirectional radiation, the radiation energy is saved, and the signal strength value in the radiation area will be very high, and the obtained signal strength value will be more accurate, thereby improving the positioning accuracy.

[0047] Embodiment 2

[0048] The positioning method provided in an embodiment of the present invention is applied to a wireless positioning device, which includes a shell, and a signal generator and a transceiver signal antenna arranged in the shell: the shell is composed of a first part and a second part, the first part is made of metal material, and the second part is made of non-metallic material, and the transceiver signal antenna is arranged on the inner side of the second part.

[0049] Figure 2 The schematic diagram of the implementation process of the positioning method is shown in FIG. Figure 2 As shown, the details are as follows:

[0050] Step 201, generating a positioning signal by the signal generator;

[0051] In step 201, optionally, the signal generator comprises: a first circuit module and a second circuit module;

[0052] Generating a positioning signal by the signal generator includes: generating an original signal by the first circuit module; and performing gain amplification on the original signal by the second circuit module to obtain the positioning signal.

[0053] Step 202, broadcasting the positioning signal generated by the signal generator through the signal transceiver antenna;

[0054] In step 202, optionally, the above-mentioned transceiver signal antenna is a directional transceiver signal antenna, which is used to radiate signals to a specified spatial area, and cooperate with the above-mentioned shell to radiate the signals in a fixed direction. Since the directional transceiver signal antenna has the characteristics of directional radiation signals, the directional transceiver signal antenna can be set on the inner side of the second part of the above-mentioned shell, and the radiation direction of the directional transceiver signal antenna is toward the radiation area corresponding to the second part of the above-mentioned shell, so that among the signals radiated by the directional transceiver signal antenna, only a small part of the signals are shielded by the non-radiation area corresponding to the first part of the above-mentioned shell, and most of the signals can be radiated through the radiation area corresponding to the second part of the above-mentioned shell. In this way, the energy of the signal radiated by the directional transceiver signal antenna is more concentrated, and the signal radiation distance is farther.

[0055] In step 202, the positioning signal generated by the signal generator is received; the positioning signal is transmitted to the transceiver antenna, and the transceiver antenna broadcasts the positioning signal generated by the signal generator.

[0056] In this embodiment, before broadcasting the positioning signal, the positioning signal may be processed (for example, modulated and demodulated (for example, frequency modulated)). When the positioning signal generated by the signal generator is not suitable for transmission by the transceiver antenna, the positioning signal may be modulated into a modulated positioning signal suitable for transmission by the transceiver antenna, and the modulated positioning signal may be transmitted to the transceiver antenna, and the modulated positioning signal generated by the signal generator and modulated by the processor may be broadcasted through the transceiver antenna;

[0057] Step 203: when a signal strength value returned by the mobile terminal based on the positioning signal is received through the signal transceiver antenna, determining the location information of the mobile terminal based on the signal strength value, wherein the signal strength value indicates the signal strength of the positioning signal received by the mobile terminal;

[0058] In step 203, when the signal strength value returned by the mobile terminal based on the positioning signal is received through the above-mentioned signal transceiver antenna, the location information of the mobile terminal is determined based on the signal strength value.

[0059] In an embodiment of the present application, when the signal strength value returned by the above-mentioned positioning signal received by the transceiver signal antenna needs to be demodulated, it can be demodulated first, and then the location information of the mobile terminal is determined from the signal strength value obtained after demodulation.

[0060] In one application scenario, a reference position may be selected in advance in the area to be positioned, and the signal strength value of the positioning signal that can be received at each reference position may be measured. Then, a reference table may be established and stored in the wireless positioning device, and the reference table may include: information on the correspondence between the signal strength value and the position information. The above-mentioned determination of the position information of the mobile terminal based on the signal strength value may include: when the signal strength value returned by the mobile terminal based on the positioning signal is received through the above-mentioned transceiver antenna, the position information of the mobile terminal may be determined according to the information on the correspondence between the signal strength value and the position information contained in the above-mentioned reference table.

[0061] In another application scenario, when the signal strength value returned by the mobile terminal based on the positioning signal is received through the above-mentioned transceiver antenna, the location information of the mobile terminal is determined according to the path loss model of the positioning signal, wherein the path loss model is an existing technology and will not be repeated here.

[0062] Alternatively, the above-mentioned determination of the location information of the mobile terminal is executed by the server connected to the above-mentioned wireless positioning device triggered by the above-mentioned processor, and the above-mentioned determination of the location information of the mobile terminal based on the signal strength value may include: sending a positioning indication signal to the server, wherein the positioning indication signal carries the signal strength value, and the positioning indication signal is used to instruct the server to determine the location information of the mobile terminal based on the signal strength value carried in the positioning indication signal. Under the instruction of the positioning indication signal, the server determines the location information of the mobile terminal based on the signal strength value carried in the positioning indication signal, and returns the determined location information of the mobile terminal to the wireless positioning device.

[0063] Furthermore, in the embodiment of the present application, positioning signals can be generated and broadcast periodically, so when a mobile terminal is continuously located within the positioning range of the wireless positioning device, the wireless positioning preset can determine multiple location information of the mobile terminal within a period of time. Therefore, after determining the location information of the mobile terminal based on the signal strength value, the positioning method in the embodiment of the present application can also include: based on all the location information of the mobile terminal obtained within the preset time length, generating the movement trajectory of the mobile terminal within the preset time length, so that the movement trajectory of the mobile terminal within the preset time length can be determined, and if the mobile terminal needs to determine its own movement trajectory, the movement trajectory is sent to the mobile terminal.

[0064] For the convenience of explanation, the following is a specific application in a parking lot scenario. The above-mentioned wireless positioning device is arranged in the parking lot. The above-mentioned wireless positioning device includes a shell, and a processor, a signal generator and a signal transmitting and receiving antenna arranged in the shell: the shell is composed of a first part and a second part, the first part is made of metal material, and the second part is made of non-metallic material. Since the first part of the shell has the function of shielding the positioning signal, the area where the first part shields the signal is a non-radiation area, and the area corresponding to the positioning area of ​​the second part is a radiation area of ​​the signal. The wireless positioning device only broadcasts the positioning signal in the radiation area. When the mobile terminal (from this application, the mobile terminal refers to the vehicle that needs to be positioned) enters the radiation area of ​​the wireless positioning device, the wireless positioning device will communicate with the mobile terminal, and the mobile terminal will return the signal strength information received from the wireless positioning device to the wireless positioning device. The wireless positioning device determines the position of the mobile terminal through the processor or the server connected to the wireless positioning device, so that the mobile terminal can be accurately positioned. If the mobile terminal needs to know its own position, the wireless positioning device or the server can also send the determined positioning information to the mobile terminal. If the movement trajectory of the mobile terminal needs to be known, all positions of the mobile terminal are determined within a preset time, so as to obtain the movement trajectory of the mobile terminal.

[0065] It should be understood that the above positioning method of this embodiment can be applied to most indoor environments, such as parking lots, large shopping malls, libraries, warehouses, etc., and is not limited here.

[0066] It can be seen that the above-mentioned positioning method in the embodiment of the present invention is applied to a wireless positioning device, and the above-mentioned wireless positioning device includes a shell, and a processor, a signal generator and a signal transmitting and receiving antenna arranged in the shell: the shell is composed of a first part and a second part, the first part is made of metal material, and the second part is made of non-metallic material. Since the first part of the shell has the function of shielding the positioning signal, the area where the first part shields the signal is a non-radiation area, and the second part corresponds to the positioning area as the radiation area of ​​the signal, so that the positioning area can be effectively divided into the radiation area and the non-radiation area of ​​the wireless positioning device, and the positioning signal is only broadcast in the radiation area. The interference signal received by the mobile terminal will also be reduced, and compared with omnidirectional radiation, the radiation energy is saved, and the signal strength value in the radiation area will be very high, and the obtained signal strength value will be more accurate, thereby improving the positioning accuracy.

[0067] Embodiment 3

[0068] The embodiment of the present invention provides a positioning system, including two or more wireless positioning devices, which are described in detail in the first embodiment and will not be described again here. Optionally, the positioning system also includes servers connected to the two or more wireless positioning devices. The positioning system in the embodiment of the present invention is described below with a specific application scenario, such as Figure 3 As shown, the positioning system 300 includes: a server 301, a wireless positioning device 302, a wireless positioning device 303, a wireless positioning device 304 and a mobile terminal 305. The radiation area of ​​the wireless positioning device 302 is 3021, the radiation area of ​​the wireless positioning device 303 is 3031, and the radiation area of ​​the wireless positioning device 304 is 3041. When the mobile terminal 305 enters the radiation area where the radiation areas 3021 and 3031 intersect, that is, the wireless positioning device 302 and the wireless positioning device 302 will communicate with the mobile terminal 305, and the mobile terminal 305 will return the signal strength value received from the wireless positioning device 302 and the wireless positioning device 302 to the wireless positioning device 302 and the wireless positioning device 302, and the wireless positioning device 302 and the wireless positioning device 302 will transmit the received corresponding signal strength value to the server 301, wherein the maximum signal strength value is used to determine the location information of the mobile terminal 305, and the smaller signal strength value is used to perform a secondary check on the determined location information. Specifically, the verification method can set different weights for verification by signal strength values ​​of different sizes. For example, when the maximum signal strength value determines that the location information of the mobile terminal 305 is (x 1 ,y 1 ,z 1 ), the smaller signal strength value determines the location information of the mobile terminal 305 as (x 2 ,y 2 ,z 2 ), then the verified position information can be (x, y, z) = w 1 (x 1 ,y 1 ,z 1 )+w 2 (x 1 ,y 1 ,z 1 ), where x is the horizontal axis, y is the vertical axis, z is the vertical axis, and w 1 is the weight corresponding to the maximum signal strength value, w 2 is the weight corresponding to the smaller signal strength value, and w 1 >w 2 , w 1 +w 2= 1. Thus, the accuracy of positioning the mobile terminal 305 can be improved (i.e., the positioning precision can be improved). If the mobile terminal 305 needs to know its own location, the determined location information is sent to the mobile terminal 305. If the movement trajectory of the mobile terminal 305 needs to be known, all positions of the mobile terminal 305 are determined within a preset time period, thereby obtaining the movement trajectory of the mobile terminal 305 within the preset time period.

[0069] It can be seen that the above-mentioned positioning system in the embodiment of the present invention determines the location information of the mobile terminal through multiple wireless positioning devices, determines the location information of the mobile terminal based on the maximum signal strength value of the positioning signal received by the mobile terminal, and verifies the location information of the mobile terminal based on signal strength values ​​of other sizes of the positioning signal received by the mobile terminal, thereby improving the positioning accuracy.

[0070] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0071] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0072] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0073] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0074] In the embodiments provided by the present invention, it should be understood that the disclosed devices, methods and systems can be implemented in other ways. For example, the device and system embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0075] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0076] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0077] If the integrated module is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0078] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A positioning system, characterized in that: include: Two or more wireless positioning devices; The positioning system further includes: servers respectively connected to the two or more wireless positioning devices; The wireless positioning device is characterized in that the wireless positioning device includes a shell, and a processor, a signal generator and a signal transceiver antenna arranged in the shell: the shell is composed of a first part and a second part, the first part is made of metal material, the second part is made of non-metal material, and the signal transceiver antenna is arranged on the inner side of the second part; The processor is used to: generate a positioning signal through the signal generator; broadcast the positioning signal generated by the signal generator through the transceiver antenna; when a signal strength value returned by the mobile terminal based on the positioning signal is received through the transceiver antenna, determine the location information of the mobile terminal based on the signal strength value, wherein the signal strength value indicates the signal strength of the positioning signal received by the mobile terminal; the processor is also used to modulate and demodulate the positioning signal; The wireless positioning device stores a reference table of the correspondence information between the signal strength value and the location information; the determination of the location information of the mobile terminal based on the signal strength value includes: when the signal strength value returned by the mobile terminal based on the positioning signal is received through the transceiver antenna, according to the correspondence information between the signal strength value and the location information contained in the reference table, wherein the more than two wireless positioning devices correspond to more than two radiation areas, and when the mobile terminal enters the intersecting radiation area of ​​each radiation area, the more than two wireless positioning devices communicate with the mobile terminal, and the mobile terminal returns the signal strength values ​​received from the more than two wireless positioning devices to the more than two wireless positioning devices, and the more than two wireless positioning devices receive the corresponding signal strength values. The signal strength value is transmitted to the server, the location information of the mobile terminal is determined by the maximum signal strength value, the location information is verified twice by the smaller signal strength value, and the location information of the mobile terminal is determined by setting different corresponding weights for verification by signal strength values ​​of different sizes; when the location information of the mobile terminal determined by the maximum signal strength value is (x1, y1, z1), and the location information of the mobile terminal determined by the smaller signal strength value is (x2, y2, z2), the verified location information is (x, y, z) = w1(x1, y1, z1) + w2(x1, y1, z1), wherein x is the horizontal axis, y is the vertical axis, z is the vertical axis, w1 is the weight corresponding to the maximum signal strength value, w2 is the weight corresponding to the smaller signal strength value, and w1>w2, w1+w2=1; The signal transmitting and receiving antenna is a directional signal transmitting and receiving antenna; The signal generator comprises: a first circuit module for generating an original signal, and a second circuit module for performing gain amplification on the original signal generated by the first circuit module to generate the positioning signal; wherein the input end of the second circuit module is connected to the output end of the first circuit module; When the positioning signal generated by the signal generator is not suitable for transmission by the transceiver antenna, the processor modulates the positioning signal into a modulated positioning signal suitable for transmission by the transceiver antenna, transmits the modulated positioning signal to the transceiver antenna, and the transceiver antenna broadcasts the modulated positioning signal generated by the signal generator and modulated by the processor; when the signal strength value returned by the positioning signal received by the transceiver antenna needs to be demodulated, the processor performs demodulation; The step of determining the location information of the mobile terminal based on the signal strength value further includes: Based on all the location information of the mobile terminal obtained within a preset time period, generating a movement trajectory of the mobile terminal within the preset time period; The motion trajectory is sent to the mobile terminal.

2. A positioning method, applied to a positioning system, characterized in that: The positioning system includes: more than two wireless positioning devices; the positioning system also includes: servers connected to the more than two wireless positioning devices respectively; the wireless positioning device includes a shell, and a processor, a signal generator and a signal transceiver antenna arranged in the shell: the shell is composed of a first part and a second part, the first part is made of metal material, the second part is made of non-metal material, and the signal transceiver antenna is arranged on the inner side of the second part; The positioning method comprises: Generate a positioning signal by means of the signal generator; broadcasting the positioning signal generated by the signal generator through the signal transceiver antenna; When a signal strength value returned by the mobile terminal based on the positioning signal is received through the signal transceiver antenna, the location information of the mobile terminal is determined based on the signal strength value, wherein the signal strength value indicates the signal strength of the positioning signal received by the mobile terminal; the processor is also used to modulate and demodulate the positioning signal; The wireless positioning device stores a reference table of the correspondence information between the signal strength value and the location information; the determination of the location information of the mobile terminal based on the signal strength value includes: when the signal strength value returned by the mobile terminal based on the positioning signal is received through the transceiver antenna, according to the correspondence information between the signal strength value and the location information contained in the reference table, wherein the more than two wireless positioning devices correspond to more than two radiation areas, and when the mobile terminal enters the intersecting radiation area of ​​each radiation area, the more than two wireless positioning devices communicate with the mobile terminal, and the mobile terminal returns the signal strength values ​​received from the more than two wireless positioning devices to the more than two wireless positioning devices, and the more than two wireless positioning devices receive the corresponding signal strength values. The signal strength value is transmitted to the server, the location information of the mobile terminal is determined by the maximum signal strength value, the location information is verified twice by the smaller signal strength value, and the location information of the mobile terminal is determined by setting different corresponding weights for verification by signal strength values ​​of different sizes; when the location information of the mobile terminal determined by the maximum signal strength value is (x1, y1, z1), and the location information of the mobile terminal determined by the smaller signal strength value is (x2, y2, z2), the verified location information is (x, y, z) = w1(x1, y1, z1) + w2(x1, y1, z1), wherein x is the horizontal axis, y is the vertical axis, z is the vertical axis, w1 is the weight corresponding to the maximum signal strength value, w2 is the weight corresponding to the smaller signal strength value, and w1>w2, w1+w2=1; When the positioning signal generated by the signal generator is not suitable for transmission by the transceiver antenna, the processor modulates the positioning signal into a modulated positioning signal suitable for transmission by the transceiver antenna, transmits the modulated positioning signal to the transceiver antenna, and the transceiver antenna broadcasts the modulated positioning signal generated by the signal generator and modulated by the processor; when the signal strength value returned by the positioning signal received by the transceiver antenna needs to be demodulated, the processor performs demodulation; The step of determining the location information of the mobile terminal based on the signal strength value further includes: Based on all the location information of the mobile terminal obtained within a preset time period, generating a movement trajectory of the mobile terminal within the preset time period; Sending the motion trajectory to the mobile terminal; The signal transmitting and receiving antenna is a directional signal transmitting and receiving antenna; The signal generator comprises: a first circuit module and a second circuit module; Generating a positioning signal by the signal generator comprises: Generate an original signal through the first circuit module; The original signal is gain-amplified by the second circuit module to obtain the positioning signal.

3. The positioning method according to claim 2, characterized in that: Determining the location information of the mobile terminal based on the signal strength value includes: A positioning indication signal is sent to a server, wherein the positioning indication signal carries the signal strength value, and the positioning indication signal is used to instruct the server to determine the location information of the mobile terminal based on the signal strength value carried in the positioning indication signal and return the determined location information.

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