CN112312306A - Positioning method and device - Google Patents
Positioning method and device Download PDFInfo
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- CN112312306A CN112312306A CN202011194724.6A CN202011194724A CN112312306A CN 112312306 A CN112312306 A CN 112312306A CN 202011194724 A CN202011194724 A CN 202011194724A CN 112312306 A CN112312306 A CN 112312306A
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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
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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
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
Abstract
The application discloses a positioning method and a positioning device, wherein the method comprises the following steps: after the target transmitting signal is sent and the target response signal corresponding to the target transmitting signal sent by the base station is received, the distance between the base station and the target transmitting signal is calculated according to the first time parameter corresponding to the target transmitting signal and/or the second time parameter corresponding to the target response signal. Because the first time parameter at least comprises the transmitting time corresponding to the transmitting signal of the transmitting target, the second time parameter at least comprises the receiving time corresponding to the receiving response signal of the receiving target, and the first time parameter and the second time parameter are slightly influenced by the depth shadow effect, the distance between the terminal and the base station is calculated through the first time parameter and/or the second time parameter under the environment with the depth shadow effect, such as urban areas, indoor environment and the like, the accuracy of calculating the distance is improved, and the positioning accuracy is improved. In addition, the positioning device provided by the application corresponds to the positioning method, and the effect is the same as that of the positioning method.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a positioning method and apparatus.
Background
With the development and growth of communication technology, location information has become the most critical factor in a service system providing services based on location. In a wide outdoor environment, a high-precision Positioning can be achieved by a Global Positioning System (GPS), a Global Navigation Satellite System (GNSS) and an independent cellular System, however, in an environment with a deep shadow effect such as a city area and an indoor environment, signals of the GPS, the GNSS and the cellular System are often interrupted, and thus, a bluetooth signal or a wireless local area network (Wi-Fi) is used for Positioning.
At present, when a terminal sends a bluetooth signal or a Wi-Fi signal to a base station, the base station can only judge the position of the terminal according to the strength of the bluetooth signal or the Wi-Fi signal, and because the bluetooth signal or the Wi-Fi signal is weakened by the influence of various obstacles in the environment with deep shadow effect such as urban area and indoor environment, huge errors can be generated in the positioning of the terminal, and the positioning accuracy is poor.
Therefore, the application provides a positioning method and a positioning device for improving positioning accuracy in an environment with a deep shadow effect.
Disclosure of Invention
The purpose of the application is to provide a positioning method for improving the accuracy of calculating the distance between a terminal and a base station and the positioning accuracy in environments with deep shadow effect such as urban areas, indoor environments and the like. The purpose of this application is still to provide a positioner.
In order to solve the above technical problem, the present application provides a positioning method, applied to a terminal, the method including:
transmitting a target transmission signal;
receiving a target response signal which is sent by a base station and corresponds to the target transmitting signal;
calculating the distance between the target transmitting signal and the base station according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to receiving the target response signal.
Preferably, the first time parameter includes: and the transmitting time corresponding to the target transmitting signal is transmitted and the receiving time corresponding to the target transmitting signal is received by the base station.
Preferably, the second time parameter includes: and receiving the receiving time corresponding to the target response signal and the transmitting time corresponding to the target response signal transmitted by the base station.
Preferably, in the case of receiving at least two of the target response signals, the method further includes:
acquiring the static coordinates of all the base stations;
calculating a target distance difference between the base stations according to the receiving time corresponding to the target transmitting signal received by the base station;
and determining the current position according to the static coordinate and the target distance difference.
Preferably, the method further comprises the following steps:
acquiring an arrival angle corresponding to the target transmitting signal or a departure angle corresponding to the target response signal;
and determining the position of the current position relative to the base station according to the arrival angle or the departure angle.
Preferably, the method further comprises the following steps: and acquiring the delay time.
Preferably, the calculating the distance between the target and the base station according to the first time parameter corresponding to the target transmitting signal and/or the second time parameter corresponding to the target responding signal includes: and calculating the distance between the base station and the mobile station according to the delay time and the first time parameter and/or the second time parameter.
In order to solve the above technical problem, the present application further provides a positioning method applied to a base station, including:
receiving a target transmitting signal sent by a terminal;
sending a target response signal corresponding to the target transmitting signal so that the terminal can calculate the distance between the terminal and a base station according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to the terminal transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to the terminal receiving the target response signal.
In order to solve the above technical problem, the present application further provides a positioning device disposed at a terminal, including:
the first sending module is used for sending a target transmitting signal;
the first receiving module is used for receiving a target response signal which is sent by a base station and corresponds to the target transmitting signal;
the first calculation module is used for calculating the distance between the target transmission signal and the base station according to a first time parameter corresponding to the target transmission signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to receiving the target response signal.
In order to solve the above technical problem, the present application further provides a positioning apparatus deployed in a base station, including:
the second receiving module is used for receiving a target transmitting signal sent by the terminal;
the second sending module is used for sending a target response signal corresponding to the target transmitting signal so that the terminal can calculate the distance between the terminal and the base station according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to the terminal transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to the terminal receiving the target response signal.
In order to solve the above technical problem, the present application further provides a positioning device, including:
a memory for storing a computer program;
a processor for implementing the steps of the positioning method as described above when executing the computer program.
According to the positioning method, after the target transmitting signal is sent and the target response signal corresponding to the target transmitting signal sent by the base station is received, the distance between the base station and the target is calculated according to the first time parameter corresponding to the target transmitting signal and/or the second time parameter corresponding to the target response signal. Because the first time parameter at least comprises the transmitting time corresponding to the transmitting signal of the transmitting target, the second time parameter at least comprises the receiving time corresponding to the receiving response signal of the receiving target, and the first time parameter and the second time parameter are slightly influenced by the depth shadow effect, the distance between the terminal and the base station is calculated through the first time parameter and/or the second time parameter under the environment with the depth shadow effect, such as urban areas, indoor environment and the like, the accuracy of calculating the distance is improved, and the positioning accuracy is improved.
In addition, the positioning device provided by the application corresponds to the positioning method, and the effect is the same as that of the positioning method.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of a first positioning method according to an embodiment of the present application;
fig. 2 is a flowchart of a second positioning method according to an embodiment of the present application;
fig. 3 is a schematic view of an application scenario in which a terminal receives three target response signals according to an embodiment of the present application;
fig. 4 is a flowchart of a third positioning method provided in the embodiment of the present application;
fig. 5 is a schematic view of an application scenario provided in an embodiment of the present application;
fig. 6 is a hardware circuit diagram of a terminal-based positioning method according to an embodiment of the present disclosure;
fig. 7 is a flowchart of a fourth positioning method provided in the embodiment of the present application;
FIG. 8 is a block diagram of a first positioning device according to an embodiment of the present disclosure;
FIG. 9 is a block diagram of a second positioning apparatus according to an embodiment of the present disclosure;
fig. 10 is a block diagram of another positioning apparatus according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a positioning method and a positioning device.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
It should be noted that, a positioning method mentioned in this application is implemented based on a terminal and a base station. For example, the terminal sends a signal to the base station when needing to be positioned, and then sends a response signal to the terminal after receiving the signal, wherein the base station may be one base station or a plurality of base stations, and the terminal may be a computer, a mobile phone, a tablet computer, an electronic watch, and other mobile devices.
Fig. 1 is a flowchart of a first positioning method according to an embodiment of the present application. As shown in fig. 1, the method is applied to a terminal, and includes:
s10: and sending the target transmission signal.
It is to be understood that the target transmission signal is a transmission signal transmitted by the terminal to the base station.
S11: and receiving a target response signal which is sent by the base station and corresponds to the target transmitting signal.
The target response signal is a response signal corresponding to the target transmission signal and sent by the base station after the base station receives the target transmission signal.
If the terminal sends the target transmitting signal to the plurality of base stations, in order to accurately judge the corresponding relationship between each base station and each target response signal, as a preferred embodiment, the target response signal may include an identity characterizing the target base station corresponding to the target response signal, and after the terminal receives the target response signal, the corresponding target base station is determined by obtaining the identity in the target response signal.
S12: and calculating the distance between the base station and the target transmitting signal according to the first time parameter corresponding to the target transmitting signal and/or the second time parameter corresponding to the target response signal.
It should be noted that the first time parameter at least includes a transmission time corresponding to the transmission signal of the transmission target, and the second time parameter at least includes a reception time corresponding to the reception of the response signal of the transmission target.
It can be understood that the first time parameter may further include any combination of a receiving time corresponding to the base station receiving the target transmission signal, a sending time corresponding to the base station sending the target response signal, and a receiving time corresponding to the receiving the target response signal, and the second time parameter may further include any combination of a transmitting time corresponding to the transmitting the target transmission signal, a receiving time corresponding to the base station receiving the target transmission signal, and a sending time corresponding to the base station sending the target response signal.
And under the condition that the first time parameter only comprises the transmitting time corresponding to the transmitting signal of the transmitting target and the second time parameter only comprises the receiving time corresponding to the receiving response signal of the receiving target, calculating the distance between the terminal and the base station according to the first time parameter and the second time parameter.
And under the condition that the first time parameter comprises at least two moments or the second time parameter comprises at least two moments, calculating the distance between the terminal and the base station according to the first time parameter or the second time parameter.
For example, when the first time parameter includes a transmission time corresponding to the transmission target signal and a receiving time corresponding to the reception target signal, the distance between the terminal and the base station can be calculated directly according to the first time parameter.
As a preferred embodiment, time flag bits are set in the target transmitting signal and the target responding signal respectively, and are used for recording the first time parameter and the second time parameter respectively. It is understood that the time flag of the target transmission signal may include a transmission time corresponding to the transmission of the target transmission signal, and the time flag of the target response signal may include a reception time corresponding to the reception of the target response signal, in addition to the first time parameter included in the time flag of the target transmission signal.
And when the time zone bit of the target transmitting signal comprises the transmitting time corresponding to the transmitting target transmitting signal and the time zone bit of the target response signal comprises the receiving time corresponding to the receiving target response signal, the terminal can directly obtain a second time parameter in the time zone bit of the target response signal after receiving the target response signal, and calculate the distance between the terminal and the base station according to the second time parameter.
And when the time marker bit of the target transmitting signal does not contain the transmitting time corresponding to the transmitting target transmitting signal and the time marker bit of the target response signal does not contain the receiving time corresponding to the receiving target response signal, the terminal records the transmitting time corresponding to the transmitting target transmitting signal and/or the receiving time corresponding to the receiving target response signal, and after the terminal acquires the second time parameter in the time marker bit of the target response signal, the distance between the terminal and the base station is calculated according to the transmitting time corresponding to the transmitting target transmitting signal and/or the receiving time corresponding to the receiving target response signal and the second time parameter.
In the embodiment of the present application, a calculation formula of the distance between the terminal and the base station is:
d＝c*TTOF
wherein d isThe distance between the terminal and the base station, c is the propagation velocity of the electromagnetic wave, TTOFThe one-way time of flight of the signal calculated from the first time parameter and/or the second time parameter. It should be noted that the electromagnetic wave propagation velocity is obtained by multiplying the electromagnetic wave frequency and the electromagnetic wave wavelength, and c may be 3 × 10 for simple calculation8。
In the positioning method provided in this embodiment, after sending the target transmission signal and receiving the target response signal corresponding to the target transmission signal sent by the base station, the distance between the base station and the target transmission signal is calculated according to the first time parameter corresponding to the target transmission signal and/or the second time parameter corresponding to the target response signal. Because the first time parameter at least comprises the transmitting time corresponding to the transmitting signal of the transmitting target, the second time parameter at least comprises the receiving time corresponding to the receiving response signal of the receiving target, and the first time parameter and the second time parameter are slightly influenced by the depth shadow effect, the distance between the terminal and the base station is calculated through the first time parameter and/or the second time parameter under the environment with the depth shadow effect, such as urban areas, indoor environment and the like, the accuracy of calculating the distance is improved, and the positioning accuracy is improved.
On the basis of the above embodiment, the first time parameter includes: the transmitting time corresponding to the transmitting target transmitting signal and the receiving time corresponding to the receiving target transmitting signal of the base station.
It can be understood that, in the embodiment of the present application, calculating the distance between the terminal and the base station specifically includes:
d＝c*(T2-T1)
wherein, T1Transmitting time, T, corresponding to the transmission of a signal for a transmitting target2And receiving the receiving time corresponding to the target transmitting signal for the base station.
According to the positioning method provided by the embodiment, the distance between the terminal and the base station is calculated according to the transmitting time corresponding to the transmitting signal of the transmitting target and the receiving time corresponding to the receiving signal of the target received by the base station, so that the time difference generated between the receiving of the target transmitting signal and the sending of the target response signal by the base station is avoided, the accuracy of distance calculation is further improved, and the positioning accuracy is further improved.
On the basis of the above embodiment, the second time parameter includes: receiving the receiving time corresponding to the target response signal and transmitting the transmitting time corresponding to the target response signal transmitted by the base station.
It can be understood that, in the embodiment of the present application, the distance between the terminal and the base station may be calculated as follows:
TTOT＝T4-T1
TTAT＝T3-T2
wherein, T3Transmitting time T corresponding to the target response signal for the base station4The receiving time is corresponding to the receiving target response signal.
The distance between the terminal and the base station can be calculated as follows:
the positioning method provided by this embodiment includes receiving a receiving time corresponding to the target response signal and transmitting a transmitting time corresponding to the target response signal from the base station. The distance between the terminal and the base station is calculated according to the average value of the one-way flight time of the target transmitting signal and the one-way flight time of the target responding signal, so that the error of a certain one-way flight time is avoided, the accuracy of distance calculation is further improved, and the positioning accuracy is further improved.
Fig. 2 is a flowchart of a second positioning method according to an embodiment of the present application. As shown in fig. 2, on the basis of the above embodiment, in the case of receiving at least two target response signals, the method further includes:
s20: and acquiring the static coordinates of all the base stations.
Fig. 3 is a schematic view of an application scenario in which a terminal receives three target response signals according to an embodiment of the present application. As shown in fig. 3, obtainStationary coordinates of three base stations, i.e. stationary coordinates (x) of base station 1 are acquired1,y1,z1) Stationary coordinates (x) of the base station 22,y2,z2) Stationary coordinates (x) of the base station 33,y3,z3)。
S21: and calculating the target distance difference between the base stations according to the receiving time corresponding to the target transmitting signal received by the base stations.
It should be noted that, as shown in fig. 3, calculating the target distance difference between the base stations specifically includes:
wherein d is12Is the target distance difference between base station 1 and base station 2, d23Is the target distance difference between base station 2 and base station 3, d31Is the target distance difference, r, between the base station 3 and the base station 11Is the distance, r, between the terminal and the base station 12Is the distance, r, between the terminal and the base station 23Is the distance, t, between the terminal and the base station 31Reception time t corresponding to the reception of the target transmission signal by the base station 12Reception time t corresponding to the reception of the target transmission signal by the base station 23The reception time corresponding to the reception of the target transmission signal for the base station 3.
S22: and determining the current position according to the static coordinate and the target distance difference.
As shown in fig. 3, determining the current location of the terminal specifically includes:
wherein, (x, y, z) is the assumed current position of the terminal, and the specific coordinates of the current position of the terminal can be obtained by solving the above equation system.
In the positioning method provided in this embodiment, the stationary coordinates of all the base stations are obtained, and after the target distance difference between each base station is calculated according to the receiving time corresponding to the target transmitting signal received by the base station, the current position of the terminal is determined according to the stationary coordinates and the target distance difference.
Fig. 4 is a flowchart of a third positioning method according to an embodiment of the present application. As shown in fig. 4, on the basis of the above embodiment, the method further includes:
s30: and acquiring an arrival angle corresponding to the target transmitting signal or a departure angle corresponding to the target response signal.
It should be noted that the arrival angle is an angle when the target transmission signal reaches the base station antenna, and the departure angle is an angle when the base station antenna sends the target response signal to the terminal. The arrival angle or the departure angle is obtained by phase calculation of a target transmitting signal or a target response signal acquired by a base station.
S31: and determining the position of the current position relative to the base station according to the arrival angle or the departure angle.
Fig. 5 is a schematic view of an application scenario provided in an embodiment of the present application. As shown in fig. 5, when the terminal acquires the arrival angle β or the departure angle β, the bearing of the terminal with respect to the base station is determined according to the angle of the arrival angle β or the departure angle β.
In order to position the terminal more accurately, at least two base station antennas are included as a preferred embodiment to receive the target transmission signal or send the target response signal.
For example, the base station antenna 1 and the base station antenna 2 receive a target transmission signal or send a target response signal at the same time, and under the condition that the terminal acquires the first arrival angle β or the first departure angle β and the second arrival angle θ or the second departure angle θ, the direction and the distance of the terminal relative to the base station are calculated according to a triangle formed by the first arrival angle β or the first departure angle β and the second arrival angle θ or the second departure angle θ, and finally the position of the terminal relative to the base station is accurately determined.
According to the positioning method provided by the embodiment, after the arrival angle corresponding to the target transmitting signal or the departure angle corresponding to the target response signal is obtained, the position of the terminal relative to the base station is determined according to the arrival angle or the departure angle, so that the direction and the position of the terminal relative to the base station can be accurately determined, and the positioning accuracy is further improved.
On the basis of the above embodiment, the method further includes: and acquiring the delay time.
Calculating the distance between the target transmitting signal and the base station according to the first time parameter corresponding to the target transmitting signal and/or the second time parameter corresponding to the target response signal, specifically: and calculating the distance between the base station and the base station according to the delay time and the first time parameter and/or the second time parameter.
It should be noted that the delay time is a delay time difference between the terminal generating the target transmission signal and the terminal antenna transmitting the target transmission signal.
Fig. 6 is a hardware circuit diagram of a positioning method based on a terminal according to an embodiment of the present disclosure. As shown in fig. 6, the hardware Circuit diagram of the terminal is composed of a bluetooth chip, an amplifier, a filter, a radio frequency switch and an antenna, wherein the bluetooth chip, the amplifier, the filter and the radio frequency switch are integrated on a Printed Circuit Board (PCB), and therefore, the delay time specifically includes a bluetooth chip processing delay, a PCB medium delay and an antenna delay.
In order to further improve the accuracy of calculating the distance and the accuracy of positioning, as a preferred embodiment, the terminal may adopt a dual-antenna apparatus, as shown in fig. 6, the antenna 1 and the antenna 2 simultaneously transmit a target transmitting signal or receive a target responding signal, respectively calculate the distances between the terminal and the base station corresponding to the antenna 1 and the antenna 2, and improve the accuracy of calculation by taking an average value.
In the embodiment of the present application, the method for calculating the distance between the terminal and the base station according to the delay time and the first time parameter and/or the second time parameter is not particularly limited, and in the specific implementation, the following method may be used: and calculating first one-way flight time according to the first time parameter and/or the second time parameter, calculating second one-way flight time according to the first one-way flight time and the delay time, and calculating the distance between the terminal and the base station according to the second one-way flight time.
The positioning method provided by the embodiment further comprises the step of obtaining the delay time, so that the delay time difference between the target transmission signal generated by the terminal and the target transmission signal transmitted by the terminal antenna is avoided, the accuracy of the one-way flight time is further improved, and the accuracy of the calculated distance and the positioning accuracy are further improved.
Fig. 7 is a flowchart of a fourth positioning method according to an embodiment of the present application. As shown in fig. 7, the method is applied to a base station, and includes:
s40: and receiving a target transmission signal sent by the terminal.
S41: and sending a target response signal corresponding to the target transmission signal so that the terminal can calculate the distance between the terminal and the base station according to the first time parameter corresponding to the target transmission signal and/or the second time parameter corresponding to the target response signal.
It should be noted that the first time parameter at least includes a transmission time corresponding to the terminal transmitting the target transmission signal, and the second time parameter at least includes a reception time corresponding to the terminal receiving the target response signal.
Since the embodiment of the present application corresponds to the embodiment applied to the terminal, please refer to the description of the embodiment, which is not described herein again.
In the positioning method provided in this embodiment, after receiving the target transmission signal sent by the terminal, the terminal sends a target response signal corresponding to the target transmission signal, so that the terminal calculates the distance to the base station according to the first time parameter corresponding to the target transmission signal and/or the second time parameter corresponding to the target response signal. Because the first time parameter at least comprises the transmitting time corresponding to the terminal transmitting the target transmitting signal, the second time parameter at least comprises the receiving time corresponding to the terminal receiving the target response signal, and the first time parameter and the second time parameter are slightly influenced by the depth shadow effect, the distance between the terminal and the base station is calculated through the first time parameter and/or the second time parameter under the environment with the depth shadow effect, such as urban areas, indoor environment and the like, the accuracy of calculating the distance is improved, and the positioning accuracy is improved.
In the above embodiments, the positioning method is described in detail, and the present application also provides embodiments corresponding to the positioning device. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.
Fig. 8 is a structural diagram of a first positioning apparatus according to an embodiment of the present application. As shown in fig. 8, the apparatus includes, based on the angle of the functional module of the terminal:
and a first sending module 10, configured to send the target transmission signal.
The first receiving module 11 is configured to receive a target response signal corresponding to a target transmitting signal sent by a base station.
The first calculating module 12 is configured to calculate a distance between the base station and the target transmitting signal according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target responding signal; the first time parameter at least comprises a transmitting time corresponding to the transmitting signal of the transmitting target, and the second time parameter at least comprises a receiving time corresponding to the receiving response signal of the receiving target.
As a preferred embodiment, the method further comprises the following steps:
the first acquisition module is used for acquiring the static coordinates of all the base stations.
And the second calculation module is used for calculating the target distance difference between the base stations according to the receiving time corresponding to the target transmitting signal received by the base stations.
And the first determining module is used for determining the current position according to the static coordinate and the target distance difference.
Further comprising:
and the second acquisition module is used for acquiring an arrival angle corresponding to the target transmitting signal or a departure angle corresponding to the target response signal.
And the second determining module is used for determining the position of the current position relative to the base station according to the arrival angle or the departure angle.
Further comprising:
and the third acquisition module is used for acquiring the delay time.
And the third calculating module is used for calculating the distance between the base station and the base station according to the delay time and the first time parameter and/or the second time parameter.
Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.
The positioning device provided by the application is applied to calculating the distance between the base station and the target transmitting signal according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target responding signal after the target transmitting signal is transmitted and the target responding signal corresponding to the target transmitting signal transmitted by the base station is received. Because the first time parameter at least comprises the transmitting time corresponding to the transmitting signal of the transmitting target, the second time parameter at least comprises the receiving time corresponding to the receiving response signal of the receiving target, and the first time parameter and the second time parameter are slightly influenced by the depth shadow effect, the distance between the terminal and the base station is calculated through the first time parameter and/or the second time parameter under the environment with the depth shadow effect, such as urban areas, indoor environment and the like, the accuracy of calculating the distance is improved, and the positioning accuracy is improved.
Fig. 9 is a structural diagram of a second positioning apparatus according to an embodiment of the present application. As shown in fig. 9, the apparatus includes, based on the angle of the functional module of the base station:
and a second receiving module 20, configured to receive a target transmission signal sent by the terminal.
The second sending module 21 is configured to send a target response signal corresponding to the target transmission signal, so that the terminal calculates a distance to the base station according to a first time parameter corresponding to the target transmission signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least comprises the transmitting time corresponding to the terminal transmitting the target transmitting signal, and the second time parameter at least comprises the receiving time corresponding to the terminal receiving the target response signal.
Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.
The positioning device provided in this embodiment is applied to send a target response signal corresponding to a target transmission signal after receiving the target transmission signal sent by the terminal, so that the terminal can calculate the distance to the base station according to a first time parameter corresponding to the target transmission signal and/or a second time parameter corresponding to the target response signal. Because the first time parameter at least comprises the transmitting time corresponding to the terminal transmitting the target transmitting signal, the second time parameter at least comprises the receiving time corresponding to the terminal receiving the target response signal, and the first time parameter and the second time parameter are slightly influenced by the depth shadow effect, the distance between the terminal and the base station is calculated through the first time parameter and/or the second time parameter under the environment with the depth shadow effect, such as urban areas, indoor environment and the like, the accuracy of calculating the distance is improved, and the positioning accuracy is improved.
Fig. 10 is a block diagram of another positioning apparatus according to an embodiment of the present disclosure. As shown in fig. 10, the apparatus includes, from the perspective of the hardware configuration:
a memory 30 for storing a computer program;
a processor 31 for implementing the steps of the positioning method as in the above embodiments when executing the computer program.
The processor 31 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 31 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 31 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 31 may be integrated with a Graphics Processing Unit (GPU) which is responsible for rendering and drawing the content required to be displayed on the display screen.
Memory 30 may include one or more computer-readable storage media, which may be non-transitory. Memory 30 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 this embodiment, the memory 30 is at least used for storing the following computer program 301, wherein after being loaded and executed by the processor 31, the computer program can implement the relevant steps of the positioning method disclosed in any of the foregoing embodiments. In addition, the resources stored by the memory 30 may also include an operating system 302, data 303, and the like, and the storage may be transient storage or permanent storage. Operating system 302 may include Windows, Unix, Linux, etc. Data 303 may include, but is not limited to, data involved in positioning methods, and the like.
In some embodiments, the positioning device may further include a display screen 32, an input/output interface 33, a communication interface 34, a power source 35, and a communication bus 36.
Those skilled in the art will appreciate that the configuration shown in fig. 10 is not intended to be limiting as the positioning device may include more or fewer components than those shown.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The positioning device provided by the embodiment of the application comprises a memory and a processor, wherein when the processor executes a program stored in the memory, the following method can be realized: after the target transmitting signal is sent and the target response signal corresponding to the target transmitting signal sent by the base station is received, the distance between the base station and the target transmitting signal is calculated according to the first time parameter corresponding to the target transmitting signal and/or the second time parameter corresponding to the target response signal. Because the first time parameter at least comprises the transmitting time corresponding to the transmitting signal of the transmitting target, the second time parameter at least comprises the receiving time corresponding to the receiving response signal of the receiving target, and the first time parameter and the second time parameter are slightly influenced by the depth shadow effect, the distance between the terminal and the base station is calculated through the first time parameter and/or the second time parameter under the environment with the depth shadow effect, such as urban areas, indoor environment and the like, the accuracy of calculating the distance is improved, and the positioning accuracy is improved.
The above provides a detailed description of a positioning method and apparatus provided in the present application. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A positioning method is applied to a terminal, and comprises the following steps:
transmitting a target transmission signal;
receiving a target response signal which is sent by a base station and corresponds to the target transmitting signal;
calculating the distance between the target transmitting signal and the base station according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to receiving the target response signal.
2. The positioning method according to claim 1, wherein the first time parameter comprises: and the transmitting time corresponding to the target transmitting signal is transmitted and the receiving time corresponding to the target transmitting signal is received by the base station.
3. The positioning method according to claim 1, wherein the second time parameter comprises: and receiving the receiving time corresponding to the target response signal and the transmitting time corresponding to the target response signal transmitted by the base station.
4. The positioning method according to claim 2, further comprising, in case of receiving at least two of the target response signals:
acquiring the static coordinates of all the base stations;
calculating a target distance difference between the base stations according to the receiving time corresponding to the target transmitting signal received by the base station;
and determining the current position according to the static coordinate and the target distance difference.
5. The positioning method according to claim 1, further comprising:
acquiring an arrival angle corresponding to the target transmitting signal or a departure angle corresponding to the target response signal;
and determining the position of the current position relative to the base station according to the arrival angle or the departure angle.
6. The positioning method according to claim 1, further comprising:
obtaining delay time;
the calculating the distance between the target transmitting signal and the base station according to the first time parameter corresponding to the target transmitting signal and/or the second time parameter corresponding to the target response signal comprises:
and calculating the distance between the base station and the mobile station according to the delay time and the first time parameter and/or the second time parameter.
7. A positioning method applied to a base station includes:
receiving a target transmitting signal sent by a terminal;
sending a target response signal corresponding to the target transmitting signal so that the terminal can calculate the distance between the terminal and a base station according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to the terminal transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to the terminal receiving the target response signal.
8. A positioning device, disposed in a terminal, includes:
the first sending module is used for sending a target transmitting signal;
the first receiving module is used for receiving a target response signal which is sent by a base station and corresponds to the target transmitting signal;
the first calculation module is used for calculating the distance between the target transmission signal and the base station according to a first time parameter corresponding to the target transmission signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to receiving the target response signal.
9. A positioning apparatus, disposed in a base station, comprising:
the second receiving module is used for receiving a target transmitting signal sent by the terminal;
the second sending module is used for sending a target response signal corresponding to the target transmitting signal so that the terminal can calculate the distance between the terminal and the base station according to a first time parameter corresponding to the target transmitting signal and/or a second time parameter corresponding to the target response signal; the first time parameter at least includes a transmitting time corresponding to the terminal transmitting the target transmitting signal, and the second time parameter at least includes a receiving time corresponding to the terminal receiving the target response signal.
10. A positioning device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the positioning method according to any of claims 1-7 when executing the computer program.
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| CN202011194724.6A CN112312306A (en) | 2020-10-30 | 2020-10-30 | Positioning method and device |
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