CN113141601A - Vehicle positioning method, device and equipment - Google Patents
Vehicle positioning method, device and equipment Download PDFInfo
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- CN113141601A CN113141601A CN202010050223.4A CN202010050223A CN113141601A CN 113141601 A CN113141601 A CN 113141601A CN 202010050223 A CN202010050223 A CN 202010050223A CN 113141601 A CN113141601 A CN 113141601A
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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
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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Abstract
The application provides a vehicle positioning method, a vehicle positioning device and vehicle positioning equipment, wherein the method comprises the following steps: establishing data connection between the vehicle-mounted terminal and the mobile terminal; acquiring first positioning signal intensity of the mobile terminal and second positioning signal intensity of the vehicle-mounted terminal; and when the strength of the first positioning signal is determined to be greater than the strength of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the mobile terminal. By adopting the embodiment of the application, the position of the vehicle can be quickly positioned, and the vehicle can be positioned more accurately.
Description
Technical Field
The present application relates to the field of vehicle navigation and positioning, and in particular, to a method, an apparatus, and a device for vehicle positioning.
Background
With the development of vehicle intellectualization becoming faster and faster, the requirement of a user on the positioning precision of the vehicle is higher. The accuracy of automobile positioning is high, and detour can be avoided, so that the driving time of a user is saved.
The existing vehicle positioning method is that a vehicle-mounted terminal is generally positioned by a base station, a wireless network and other methods, and the problems of long vehicle positioning time, poor positioning accuracy and the like are caused because the positioning of a vehicle-mounted system is easily interfered with the increasing complexity of an electronic system of a vehicle.
Disclosure of Invention
The embodiment of the application provides a vehicle positioning method, a vehicle positioning device and vehicle positioning equipment, which can improve the vehicle positioning speed and improve the accuracy of vehicle positioning.
In a first aspect, a vehicle localization method is provided, comprising:
establishing data connection between the vehicle-mounted terminal and the mobile terminal;
acquiring first positioning signal intensity of the mobile terminal and second positioning signal intensity of the vehicle-mounted terminal;
and when the strength of the first positioning signal is determined to be greater than the strength of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the mobile terminal.
With reference to the first aspect, in a possible implementation manner, the acquiring the first positioning signal strength of the mobile terminal includes: acquiring ephemeris information of the mobile terminal based on the data connection to acquire positioning data of the mobile terminal; and determining the strength of a first positioning signal of the mobile terminal according to the ephemeris information of the mobile terminal.
With reference to the first aspect, in a possible implementation manner, the determining a first positioning signal strength of the mobile terminal according to ephemeris information of the mobile terminal includes: determining N first satellites according to ephemeris information of the mobile terminal, wherein the N first satellites are the first N satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the mobile terminal, and N is an integer greater than or equal to 4; and acquiring N positioning signal intensities corresponding to the N first satellites, and calculating the average value of the N positioning signal intensities to be used as the first positioning signal intensity of the mobile terminal, wherein one first satellite corresponds to one positioning signal intensity.
With reference to the first aspect, in a possible implementation manner, the acquiring the second positioning signal strength of the vehicle-mounted terminal includes: acquiring ephemeris information of the vehicle-mounted terminal to acquire positioning data of the vehicle-mounted terminal; determining M second satellites according to ephemeris information of the vehicle-mounted terminal, wherein the M second satellites are the first M satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the vehicle-mounted terminal, and M is an integer greater than or equal to 4; and acquiring M positioning signal intensities corresponding to the M second satellites, and calculating the average value of the M positioning signal intensities to be used as the second positioning signal intensity of the vehicle-mounted terminal, wherein one second satellite corresponds to one positioning signal intensity.
With reference to the first aspect, in one possible implementation manner, the data connection includes a wired connection or a short-range wireless communication connection.
With reference to the first aspect, in a possible implementation manner, the method further includes: and when the intensity of the first positioning signal is smaller than the intensity of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the vehicle-mounted terminal.
In a second aspect, there is provided a vehicle positioning device comprising:
the data connection establishing module is used for establishing data connection between the vehicle-mounted terminal and the mobile terminal;
the signal intensity acquisition module is used for acquiring first positioning signal intensity of the mobile terminal and acquiring second positioning signal intensity of the vehicle-mounted terminal;
and the first positioning module is used for positioning the vehicle-mounted terminal according to the positioning data of the mobile terminal when the first positioning signal strength is determined to be greater than the second positioning signal strength.
With reference to the second aspect, in a possible implementation manner, the signal strength obtaining module is specifically configured to: acquiring ephemeris information of the mobile terminal based on the data connection to acquire positioning data of the mobile terminal; and determining the strength of a first positioning signal of the mobile terminal according to the ephemeris information of the mobile terminal.
With reference to the second aspect, in a possible implementation manner, the signal strength obtaining module is specifically configured to: determining N first satellites according to ephemeris information of the mobile terminal, wherein the N first satellites are the first N satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the mobile terminal, and N is an integer greater than or equal to 4; the signal strength acquisition module is specifically configured to: and acquiring N positioning signal intensities corresponding to the N first satellites, and calculating the average value of the N positioning signal intensities to be used as the first positioning signal intensity of the mobile terminal, wherein one first satellite corresponds to one positioning signal intensity.
With reference to the second aspect, in a possible implementation manner, the signal strength obtaining module is specifically configured to: acquiring ephemeris information of the vehicle-mounted terminal to acquire positioning data of the vehicle-mounted terminal; determining M second satellites according to ephemeris information of the vehicle-mounted terminal, wherein the M second satellites are the first M satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the vehicle-mounted terminal, and M is an integer greater than or equal to 4; and acquiring M positioning signal intensities corresponding to the M second satellites, and calculating the average value of the M positioning signal intensities to be used as the second positioning signal intensity of the vehicle-mounted terminal, wherein one second satellite corresponds to one positioning signal intensity.
With reference to the second aspect, in one possible implementation manner, the data connection includes a wired connection or a short-range wireless communication connection.
With reference to the second aspect, in a possible implementation manner, the apparatus further includes: and the second positioning module is used for positioning the vehicle-mounted terminal according to the positioning data of the vehicle-mounted terminal when the strength of the first positioning signal is smaller than that of the second positioning signal.
In a third aspect, an electronic device is provided, which includes a processor, a memory, and a communication interface, the processor, the memory, and the communication interface are connected to each other, wherein the communication interface is configured to transmit or receive data, the memory is configured to store application program codes for the electronic device to execute the method, and the processor is configured to execute the vehicle positioning method of the first aspect.
In a fourth aspect, there is provided a computer readable storage medium storing a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the vehicle positioning method of the first aspect described above.
In the embodiment of the application, data connection between the vehicle-mounted terminal and the mobile terminal is established; acquiring first positioning signal intensity of the mobile terminal and second positioning signal intensity of the vehicle-mounted terminal; when confirming first locating signal intensity is greater than during the second locating signal intensity, make vehicle mounted terminal fix a position according to mobile terminal's locating data, locating signal intensity is big more represent positioning speed faster, and the degree of accuracy of location is high more, consequently, in this application embodiment, when mobile terminal's locating signal intensity is stronger, make vehicle mounted terminal utilize mobile terminal's locating data to fix a position, can improve the speed that the vehicle was fixed a position, also can improve the degree of accuracy of vehicle location.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a scene of a vehicle positioning method provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram illustrating a vehicle positioning method according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a vehicle positioning device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The scheme of this application embodiment is applicable to in the scene of vehicle location, when the vehicle needs to fix a position, obtain mobile terminal's locating signal intensity and vehicle mounted terminal's locating signal intensity after establishing the data connection between mobile terminal and the vehicle mounted terminal, when confirming that first locating signal intensity is greater than second locating signal intensity, make vehicle mounted terminal fix a position according to mobile terminal's locating data, because locating signal intensity is big more the representing positioning speed is fast, and the location is more accurate, consequently when mobile terminal's locating signal intensity is stronger, make vehicle mounted terminal utilize mobile terminal's locating data to fix a position, can realize quick location, and improve the accuracy of location.
Referring to fig. 1, fig. 1 is a scene schematic diagram of a vehicle positioning method provided in an embodiment of the present application, and as shown in fig. 1, when a vehicle-mounted terminal 101 needs to be positioned, first, the vehicle-mounted terminal 101 establishes a data connection with a mobile terminal 102; then, the vehicle-mounted terminal 101 obtains a first positioning signal strength of the mobile terminal 102 and a second positioning signal strength of the vehicle-mounted terminal 101, wherein the vehicle-mounted terminal 101 determines the first positioning signal strength according to satellite signals, which are received by the mobile terminal 102 and sent to the mobile terminal 102 by a plurality of satellites in the satellite system 103, and the vehicle-mounted terminal 101 determines the second positioning signal strength by receiving the satellite signals sent by the plurality of satellites in the satellite system 103; finally, when the vehicle-mounted terminal 101 determines that the first positioning signal strength is greater than the second positioning signal strength, the vehicle-mounted terminal 101 performs positioning using the positioning data of the mobile terminal 102, where the positioning data of the mobile terminal is the information sent to the mobile terminal by the plurality of satellites in the satellite system 103, and includes the signal strength of each satellite, the position of each satellite, and the like.
In the whole vehicle positioning process, the vehicle-mounted terminal 101 compares the strength of the positioning signals of the vehicle-mounted terminal 101 and the mobile terminal 102, when the strength of the positioning signal of the mobile terminal 102 is strong, the vehicle-mounted terminal 101 is positioned by using the positioning data of the mobile terminal 102, and because the positioning signal of the mobile terminal is large, the positioning speed of vehicle positioning and the accuracy of vehicle positioning can be improved by using the positioning data of the mobile terminal for positioning.
Alternatively, when the vehicle-mounted terminal 101 determines that the first positioning signal strength is smaller than the second positioning signal strength, the vehicle-mounted terminal 101 performs positioning using the positioning data of the vehicle-mounted terminal 101. The positioning data of the vehicle-mounted terminal, i.e. the information sent to the vehicle-mounted terminal by the plurality of satellites in the satellite system 103, includes the signal strength of each satellite, the position of each satellite, and so on. Alternatively, when the vehicle-mounted terminal 101 determines that the first positioning signal strength is equal to the second positioning signal strength, the vehicle-mounted terminal 101 may perform positioning by using any one of the positioning data of the vehicle-mounted terminal 101 or the positioning data of the mobile terminal 102.
The in-vehicle terminal and the mobile terminal related to the present application may include a handheld terminal, a notebook computer, a Personal Digital Assistant (PDA) computer, a tablet computer, a laptop computer (laptop computer), a Machine Type Communication (MTC) terminal, or other devices. The number of the mobile terminals may be one or more. Alternatively, the mobile terminal may be a vehicle-mounted terminal of another vehicle, that is, the vehicle-mounted terminal 1 is a vehicle-mounted terminal in the vehicle a, and the vehicle-mounted terminal 2 is a vehicle-mounted terminal in the vehicle B, that is, the vehicle-mounted terminal 1 in the vehicle a obtains the strength of the positioning signal of the vehicle-mounted terminal 2 in the vehicle B, and compares the strength of the positioning signal of the vehicle-mounted terminal 1 and the strength of the positioning signal of the vehicle-mounted terminal 2, for example, when the strength of the positioning signal of the vehicle-mounted terminal 2 is large, positioning is performed according to ephemeris information of the vehicle-mounted terminal 2.
The embodiments of the present application will be described from the perspective of a vehicle positioning device, which may be integrated in a vehicle terminal. Referring to fig. 2, fig. 2 is a schematic flow chart of a vehicle positioning method provided in an embodiment of the present application, and as shown in the drawing, the method includes:
and S101, establishing data connection between the vehicle-mounted terminal and the mobile terminal.
Here, the vehicle-mounted terminal is a vehicle-mounted terminal having a connection relationship with an automobile to be positioned, and may be, for example, a vehicle-mounted iPad; the mobile terminal may be a terminal used by a user, an idle terminal not used by a user, or a vehicle-mounted terminal in another car, etc. It can be known that the number of the mobile terminals may be greater than or equal to 1, and the mobile terminals have a positioning function.
In the embodiment of the application, the data connection between the vehicle-mounted terminal and the mobile terminal comprises wired connection or short-distance wireless communication connection. Wherein the wired connection may include a data line connection; the short-range Wireless Communication connection may include a Near Field Communication (NFC) connection, a bluetooth connection, a ZigBee (ZigBee) connection, a Wireless Local Area Network (WLAN) connection, an Infrared Data Association (IrDA) connection, a Radio Frequency Identification (RFID) connection, an Ultra Wide Band (UWB) connection, and the like.
S102, obtaining the first positioning signal intensity of the mobile terminal and obtaining the second positioning signal intensity of the vehicle-mounted terminal.
In one possible implementation, ephemeris information of the mobile terminal may be acquired based on the data connection to acquire positioning data of the mobile terminal; and determining the strength of the first positioning signal of the mobile terminal according to the ephemeris information of the mobile terminal.
Here, if the data connection mode is data line connection in step S101, ephemeris information of the mobile terminal is acquired based on the data line connection mode; if the data connection mode in the step S101 is near field communication connection, acquiring ephemeris information of the mobile terminal based on the near field communication connection mode; if the data connection mode in step S101 is bluetooth connection, ephemeris information of the mobile terminal is acquired based on the bluetooth connection mode, and so on.
The positioning data of the mobile terminal may include ephemeris information of the mobile terminal, and the ephemeris information of the mobile terminal may include a positioning signal strength of each of the plurality of satellites received by the mobile terminal. The strength of the positioning signal of each satellite in the plurality of satellites corresponding to the mobile terminal can be determined by obtaining ephemeris information of the mobile terminal.
In a possible implementation manner, specifically determining the first positioning signal strength of the mobile terminal according to the ephemeris information of the mobile terminal may include the following steps:
determining N first satellites according to ephemeris information of a mobile terminal, wherein the N first satellites are the first N satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the mobile terminal, and N is an integer greater than or equal to 4;
where N is equal to 4, for example, since the ephemeris information of the mobile terminal includes the strength of the positioning signal of each of the plurality of satellites received by the mobile terminal, for example, it is determined that the mobile terminal receives signals transmitted by 6 satellites according to the ephemeris information of the mobile terminal, the 6 satellite numbers are respectively satellites C1, C2, C3, C4, C5, and C6, the mobile terminal receives a value corresponding to the positioning signal strength of satellite C1 which is 1, a value corresponding to the positioning signal strength of satellite C2 which is 2, a value corresponding to the positioning signal strength of satellite C3 which is 3, a value corresponding to the positioning signal strength of satellite C4 which is 4, a value corresponding to the positioning signal strength of satellite C5 which is 5, a value corresponding to the positioning signal strength of satellite C6 which is 6, and the larger the value represents that the satellite positioning signal strength is larger, the first 4 first satellites determined according to the ephemeris information of the mobile terminal are respectively: satellite C3, satellite C4, satellite C5, and satellite C6.
And secondly, acquiring N positioning signal intensities corresponding to N first satellites, and calculating the average value of the N positioning signal intensities to serve as the first positioning signal intensity of the mobile terminal, wherein one first satellite corresponds to one positioning signal intensity.
Here, for example, if N is equal to 4, the positioning signal strength corresponding to the first satellite C3 is 3, the positioning signal strength corresponding to the first satellite C4 is 4, the positioning signal strength corresponding to the first satellite C5 is 5, and the positioning signal strength corresponding to the first satellite C6 is 6, the average value of the 4 positioning signal strengths is (3+4+5+ 6)/4.5, that is, the first positioning signal strength of the mobile terminal is 4.5.
In a possible implementation manner, specifically acquiring the strength of the second positioning signal of the vehicle-mounted terminal may include the following steps:
firstly, ephemeris information of the vehicle-mounted terminal is obtained so as to obtain positioning data of the vehicle-mounted terminal.
Here, the positioning data of the vehicle-mounted terminal may include ephemeris information of the vehicle-mounted terminal, and the ephemeris information of the vehicle-mounted terminal may include a positioning signal strength of each of the plurality of satellites received by the vehicle-mounted terminal.
And secondly, determining M second satellites according to the ephemeris information of the vehicle-mounted terminal, wherein the M second satellites are the first M satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the vehicle-mounted terminal, and M is an integer greater than or equal to 4.
Here, for example, M is equal to 4, since the ephemeris information of the vehicle-mounted terminal includes the positioning signal strength of each of the plurality of satellites received by the vehicle-mounted terminal, for example, it is determined that the vehicle-mounted terminal receives signals transmitted by 8 satellites according to the ephemeris information of the vehicle-mounted terminal, the 8 satellite numbers are respectively satellites D1, D2, D3, D4, D5, D6, D7, and D8, the vehicle-mounted terminal receives a value corresponding to the positioning signal strength of the satellite D1 of 4, a value corresponding to the positioning signal strength of the satellite D2 of 4, a value corresponding to the positioning signal strength of the satellite D3 of 3, a value corresponding to the positioning signal strength of the satellite D4 of 3, a value corresponding to the positioning signal strength of the satellite D5 of 2, a value corresponding to the positioning signal strength of the satellite D6 of 2, a value corresponding to the positioning signal strength of the satellite D7 of 1, and a value corresponding to the positioning signal strength of the satellite D8 of 1, the larger the value is, the higher the satellite positioning signal strength is, the first 4 second satellites determined according to the ephemeris information of the vehicle-mounted terminal are respectively: satellite D1, satellite D2, satellite D3, and satellite D4.
Optionally, because the number of satellites in the global satellite system is limited, for example, 24 satellites, there may be an intersection between N first satellites and M second satellites, for example, the satellite C1 in 4 first satellites is the same as the satellite D1 in 4 second satellites, for example, the numbers of the first satellite C1 and the second satellite D1 in the global satellite system are both 1, that is, the same satellite. Although the mobile terminal and the vehicle-mounted terminal are located at the same position, because a difference exists between a vehicle-mounted positioning module in the vehicle-mounted terminal and a positioning module of the mobile terminal, the strength of a positioning signal received by the same satellite at the same position of the vehicle-mounted terminal and the mobile terminal is different.
And thirdly, acquiring M positioning signal intensities corresponding to M second satellites, calculating the average value of the M positioning signal intensities to serve as the second positioning signal intensity of the vehicle-mounted terminal, wherein one second satellite corresponds to one positioning signal intensity.
Here, for example, if M is equal to 4, the positioning signal strength corresponding to the second satellite D1 is 4, the positioning signal strength corresponding to the second satellite D2 is 4, the positioning signal strength corresponding to the second satellite D3 is 3, and the positioning signal strength corresponding to the second satellite D4 is 3, the average value of the 4 positioning signal strengths is (4+4+3+3)/4 equals 3.5, that is, the second positioning signal strength of the vehicle-mounted terminal is 3.5.
S103, when the first positioning signal strength is determined to be larger than the second positioning signal strength, the vehicle-mounted terminal is positioned according to the positioning data of the mobile terminal.
In the embodiment of the application, the average values of the positioning signal intensities of the plurality of satellites corresponding to the mobile terminal and the vehicle-mounted terminal are respectively obtained and are respectively used as the first positioning signal intensity and the second positioning signal intensity, so that the relationship between the positioning signal intensities of the mobile terminal and the vehicle-mounted terminal can be more accurately judged, and the judgment accuracy is improved.
Here, by determining the first positioning signal strength and the second positioning signal strength in step S102, the magnitudes of the first positioning signal strength and the second positioning signal strength may be compared, and when it is determined that the first positioning signal strength is greater than the second positioning signal strength, the in-vehicle terminal is enabled to perform positioning according to the positioning data of the mobile terminal. For example, it is determined that the first positioning signal strength of the mobile terminal is 4.5 and the second positioning signal strength of the vehicle-mounted terminal is 3.5, and then the first positioning signal strength of the mobile terminal 4.5 is greater than the second positioning signal strength of the vehicle-mounted terminal by 3.5, so that the vehicle-mounted terminal performs positioning according to the positioning data of the mobile terminal.
In a possible case, when the first positioning signal strength is smaller than the second positioning signal strength, the vehicle-mounted terminal is enabled to perform positioning according to the positioning data of the vehicle-mounted terminal. For example, if it is determined that the first positioning signal strength of the mobile terminal is 3 and the second positioning signal strength of the vehicle-mounted terminal is 4, the first positioning signal strength 3 of the mobile terminal is smaller than the second positioning signal strength 4 of the vehicle-mounted terminal, so that the vehicle-mounted terminal performs positioning according to the positioning data of the vehicle-mounted terminal.
In another possible case, when the first positioning signal strength is equal to the second positioning signal strength, that is, the positioning signal strength of the mobile terminal is equal to the positioning signal strength of the vehicle-mounted terminal, the positioning may be performed by using any one of the positioning data of the vehicle-mounted terminal or the positioning data of the mobile terminal.
Here, the positioning according to the positioning data of the mobile terminal may specifically be determining the position of the mobile terminal according to the positioning data of the mobile terminal, and determining the position of the mobile terminal as the position of the in-vehicle terminal.
In a specific implementation, the position information of each of the N first satellites may be determined according to ephemeris information of the mobile terminal, because when the first satellite transmits the position information, the position information carries a first time when the first satellite transmits the position information, a time when the mobile terminal receives the position information is a second time, and a distance between the first satellite and the mobile terminal may be obtained according to a time difference between the second time and the first time, a propagation speed (i.e., an optical speed) of the satellite position information, and a propagation error. According to the position information of each first satellite in the N first satellites and the distance between each first satellite in the N first satellites and the mobile terminal, the position of the mobile terminal can be obtained through calculation, and the position of the mobile terminal is determined to be the position of the vehicle-mounted terminal, so that vehicle positioning is achieved.
Under the condition that the first positioning signal intensity of the mobile terminal is smaller than the second positioning signal intensity of the vehicle-mounted terminal, namely the positioning signal intensity of the vehicle-mounted terminal is larger than the positioning signal intensity of the mobile terminal, the vehicle-mounted terminal can also determine the distance between each second satellite of the M second satellites corresponding to the vehicle-mounted terminal and the vehicle-mounted terminal through the method, and the position of the vehicle-mounted terminal is calculated according to the distance between each second satellite of the M second satellites and the vehicle-mounted terminal and the position information, so that the vehicle positioning is realized.
Optionally, the mobile terminal may also determine, by using the above method, a distance between each of the N first satellites corresponding to the mobile terminal and the mobile terminal, calculate a position of the mobile terminal according to the distance between each of the N first satellites and the mobile terminal and the position information, and after the vehicle-mounted terminal obtains the position calculated by the mobile terminal through data connection, determine the position of the mobile terminal as the position of the vehicle-mounted terminal, thereby implementing vehicle positioning.
Because the existing mobile terminal has better performance and can realize quick positioning through modes such as networking, the positioning speed and the positioning accuracy of the vehicle can be improved by using the mobile terminal for positioning under the conditions of high positioning speed and high positioning accuracy of the mobile terminal.
In the embodiment of the application, data connection between the vehicle-mounted terminal and the mobile terminal is established; acquiring first positioning signal intensity of the mobile terminal and second positioning signal intensity of the vehicle-mounted terminal; when the first positioning signal intensity is determined to be greater than the second positioning signal intensity, the vehicle-mounted terminal is enabled to be positioned according to the positioning data of the mobile terminal, the positioning speed is higher when the positioning signal intensity is larger, and the positioning accuracy is higher.
That is to say, this application embodiment, through the size of the locating signal intensity of comparison mobile terminal and vehicle mounted terminal, make vehicle mounted terminal utilize mobile terminal's locating data to fix a position when mobile terminal's locating signal intensity is great, even from this even the locating signal intensity when vehicle mounted terminal is less also can realize quick location, and make vehicle mounted terminal use its self locating data to fix a position when vehicle mounted terminal's locating signal is great, thereby vehicle mounted terminal utilizes the locating data of the stronger terminal of locating signal to fix a position all the time, can improve positioning speed greatly.
In other embodiments, the first positioning signal strength of the mobile terminal may also be the strongest positioning signal strength of the plurality of positioning signals corresponding to the mobile terminal, that is, the strength of the strongest positioning signal received by the mobile terminal is directly used as the first positioning signal strength, and correspondingly, the second positioning signal strength of the vehicle-mounted terminal may also be the strength of the strongest positioning signal received by the vehicle-mounted terminal, so as to reduce the amount of calculation and further improve the positioning efficiency.
The method of the embodiments of the present application is described above, and the apparatus of the embodiments of the present application is described below.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a vehicle positioning device provided in an embodiment of the present application, where the device 30 includes:
a data connection establishing module 301, configured to establish a data connection between the vehicle-mounted terminal and the mobile terminal;
here, the vehicle-mounted terminal is a vehicle-mounted terminal having a connection relationship with an automobile to be positioned, and may be, for example, a vehicle-mounted iPad; the mobile terminal may be a terminal used by a user, an idle terminal not used by a user, or a vehicle-mounted terminal in another car, etc. It can be known that the number of the mobile terminals may be greater than or equal to 1, and the mobile terminals have a positioning function.
A signal strength obtaining module 302, configured to obtain a first positioning signal strength of the mobile terminal, and obtain a second positioning signal strength of the vehicle-mounted terminal;
here, if the data connection mode is data line connection in step S101, ephemeris information of the mobile terminal is acquired based on the data line connection mode; if the data connection mode in the step S101 is near field communication connection, acquiring ephemeris information of the mobile terminal based on the near field communication connection mode; if the data connection mode in step S101 is bluetooth connection, ephemeris information of the mobile terminal is acquired based on the bluetooth connection mode, and so on.
The positioning data of the mobile terminal may include ephemeris information of the mobile terminal, and the ephemeris information of the mobile terminal may include a positioning signal strength of each of the plurality of satellites received by the mobile terminal. The strength of the positioning signal of each satellite in the plurality of satellites corresponding to the mobile terminal can be determined by obtaining ephemeris information of the mobile terminal.
The first positioning module 303 is configured to, when it is determined that the first positioning signal strength is greater than the second positioning signal strength, enable the vehicle-mounted terminal to perform positioning according to the positioning data of the mobile terminal.
Here, by determining the first positioning signal strength and the second positioning signal strength in step S102, the magnitudes of the first positioning signal strength and the second positioning signal strength may be compared, and when it is determined that the first positioning signal strength is greater than the second positioning signal strength, the in-vehicle terminal is enabled to perform positioning according to the positioning data of the mobile terminal. For example, it is determined that the first positioning signal strength of the mobile terminal is 4.5 and the second positioning signal strength of the vehicle-mounted terminal is 3.5, and then the first positioning signal strength of the mobile terminal 4.5 is greater than the second positioning signal strength of the vehicle-mounted terminal by 3.5, so that the vehicle-mounted terminal performs positioning according to the positioning data of the mobile terminal.
In a possible case, when the first positioning signal strength is equal to the second positioning signal strength, that is, the positioning signal strength of the mobile terminal is equal to the positioning signal strength of the vehicle-mounted terminal, the positioning can be performed by using any one of the positioning data of the vehicle-mounted terminal or the positioning data of the mobile terminal.
Here, the positioning according to the positioning data of the mobile terminal may specifically be determining the position of the mobile terminal according to the positioning data of the mobile terminal, and determining the position of the mobile terminal as the position of the in-vehicle terminal.
In a specific implementation, the position information of each of the N first satellites may be determined according to ephemeris information of the mobile terminal, because when the first satellite transmits the position information, the position information carries a first time when the first satellite transmits the position information, a time when the mobile terminal receives the position information is a second time, and a distance between the first satellite and the mobile terminal may be obtained according to a time difference between the second time and the first time, a propagation speed (i.e., an optical speed) of the satellite position information, and a propagation error. According to the position information of each first satellite in the N first satellites and the distance between each first satellite in the N first satellites and the mobile terminal, the position of the mobile terminal can be obtained through calculation, and the position of the mobile terminal is determined to be the position of the vehicle-mounted terminal, so that vehicle positioning is achieved.
Under the condition that the first positioning signal intensity of the mobile terminal is smaller than the second positioning signal intensity of the vehicle-mounted terminal, namely the positioning signal intensity of the vehicle-mounted terminal is larger than the positioning signal intensity of the mobile terminal, the vehicle-mounted terminal can also determine the distance between each second satellite of the M second satellites corresponding to the vehicle-mounted terminal and the vehicle-mounted terminal through the method, and the position of the vehicle-mounted terminal is calculated according to the distance between each second satellite of the M second satellites and the vehicle-mounted terminal and the position information, so that the vehicle positioning is realized.
Optionally, the mobile terminal may also determine, by using the above method, a distance between each of the N first satellites corresponding to the mobile terminal and the mobile terminal, calculate a position of the mobile terminal according to the distance between each of the N first satellites and the mobile terminal and the position information, and after the vehicle-mounted terminal obtains the position calculated by the mobile terminal through data connection, determine the position of the mobile terminal as the position of the vehicle-mounted terminal, thereby implementing vehicle positioning. Specifically, the positioning according to the ephemeris information of the target terminal corresponding to the strength of the target positioning signal may be determining the position of the target terminal according to the ephemeris information of the target terminal.
In a specific implementation, if the target terminal is a vehicle-mounted terminal, the position information of each of the M second satellites may be determined according to ephemeris information of the vehicle-mounted terminal, because when the second satellite transmits the position information, the position information carries a first time when the second satellite transmits the position information, a time when the vehicle-mounted terminal receives the position information is a second time, and a distance between the second satellite and the vehicle-mounted terminal may be obtained according to a time difference between the second time and the first time, a propagation speed (i.e., an optical speed) of the satellite position information, and a propagation error. According to the position information of each second satellite in the M second satellites and the distance between each second satellite in the M second satellites and the vehicle-mounted terminal, the position of the vehicle-mounted terminal can be obtained through calculation, and therefore vehicle positioning is achieved.
In one possible design, the signal strength obtaining module 302 is specifically configured to: acquiring ephemeris information of the mobile terminal based on the data connection to acquire positioning data of the mobile terminal;
the signal strength obtaining module 302 is specifically configured to: and determining the strength of a first positioning signal of the mobile terminal according to the ephemeris information of the mobile terminal.
In one possible design, the signal strength obtaining module 302 is specifically configured to: determining N first satellites according to ephemeris information of the mobile terminal, wherein the N first satellites are the first N satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the mobile terminal, and N is an integer greater than or equal to 4;
where N is equal to 4, for example, since the ephemeris information of the mobile terminal includes the strength of the positioning signal of each of the plurality of satellites received by the mobile terminal, for example, it is determined that the mobile terminal receives signals transmitted by 6 satellites according to the ephemeris information of the mobile terminal, the 6 satellite numbers are respectively satellites C1, C2, C3, C4, C5, and C6, the mobile terminal receives a value corresponding to the positioning signal strength of satellite C1 which is 1, a value corresponding to the positioning signal strength of satellite C2 which is 2, a value corresponding to the positioning signal strength of satellite C3 which is 3, a value corresponding to the positioning signal strength of satellite C4 which is 4, a value corresponding to the positioning signal strength of satellite C5 which is 5, a value corresponding to the positioning signal strength of satellite C6 which is 6, and if a larger value indicates that the satellite positioning signal strength is larger, the 4 first satellites determined according to the ephemeris information of the mobile terminal are respectively: satellite C3, satellite C4, satellite C5, and satellite C6.
The signal strength obtaining module 302 is specifically configured to: and acquiring N positioning signal intensities corresponding to the N first satellites, and calculating the average value of the N positioning signal intensities to be used as the first positioning signal intensity of the mobile terminal, wherein one first satellite corresponds to one positioning signal intensity.
Here, for example, if N is equal to 4, the positioning signal strength corresponding to the first satellite C3 is 3, the positioning signal strength corresponding to the first satellite C4 is 4, the positioning signal strength corresponding to the first satellite C5 is 5, and the positioning signal strength corresponding to the first satellite C6 is 6, the average value of the 4 positioning signal strengths is (3+4+5+ 6)/4.5, that is, the first positioning signal strength of the mobile terminal is 4.5.
In one possible design, the signal strength obtaining module 302 is specifically configured to: acquiring ephemeris information of the vehicle-mounted terminal to acquire positioning data of the vehicle-mounted terminal;
here, the positioning data of the vehicle-mounted terminal may include ephemeris information of the vehicle-mounted terminal, and the ephemeris information of the vehicle-mounted terminal may include a positioning signal strength of each of the plurality of satellites received by the vehicle-mounted terminal.
The signal strength obtaining module 302 is specifically configured to: determining M second satellites according to ephemeris information of the vehicle-mounted terminal, wherein the M second satellites are the first M satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the vehicle-mounted terminal, and M is an integer greater than or equal to 4;
here, for example, M is equal to 4, since the ephemeris information of the vehicle-mounted terminal includes the positioning signal strength of each of the plurality of satellites received by the vehicle-mounted terminal, for example, it is determined that the vehicle-mounted terminal receives signals transmitted by 8 satellites according to the ephemeris information of the vehicle-mounted terminal, the 8 satellite numbers are respectively satellites D1, D2, D3, D4, D5, D6, D7, and D8, the vehicle-mounted terminal receives a value corresponding to the positioning signal strength of the satellite D1 of 4, a value corresponding to the positioning signal strength of the satellite D2 of 4, a value corresponding to the positioning signal strength of the satellite D3 of 3, a value corresponding to the positioning signal strength of the satellite D4 of 3, a value corresponding to the positioning signal strength of the satellite D5 of 2, a value corresponding to the positioning signal strength of the satellite D6 of 2, a value corresponding to the positioning signal strength of the satellite D7 of 1, and a value corresponding to the positioning signal strength of the satellite D8 of 1, if the value is larger, the satellite positioning signal strength is larger, and the 4 second satellites determined according to the ephemeris information of the vehicle-mounted terminal are respectively: satellite D1, satellite D2, satellite D3, and satellite D4.
Optionally, because the number of satellites in the global satellite system is limited, for example, 24 satellites, there may be an intersection between N first satellites and M second satellites, for example, the satellite C1 in 4 first satellites is the same as the satellite D1 in 4 second satellites, for example, the numbers of the first satellite C1 and the second satellite D1 in the global satellite system are both 1, that is, the same satellite. Although the mobile terminal and the vehicle-mounted terminal are located at the same position, because a difference exists between a vehicle-mounted positioning module in the vehicle-mounted terminal and a positioning module of the mobile terminal, the strength of a positioning signal received by the same satellite at the same position of the vehicle-mounted terminal and the mobile terminal is different.
The signal strength obtaining module 302 is specifically configured to: and acquiring M positioning signal intensities corresponding to the M second satellites, and calculating the average value of the M positioning signal intensities to be used as the second positioning signal intensity of the vehicle-mounted terminal, wherein one second satellite corresponds to one positioning signal intensity.
Here, for example, if M is equal to 4, the positioning signal strength corresponding to the second satellite D1 is 4, the positioning signal strength corresponding to the second satellite D2 is 4, the positioning signal strength corresponding to the second satellite D3 is 3, and the positioning signal strength corresponding to the second satellite D4 is 3, the average value of the 4 positioning signal strengths is (4+4+3+3)/4 equals 3.5, that is, the second positioning signal strength of the vehicle-mounted terminal is 3.5.
In one possible design, the data connection includes a wired connection or a short-range wireless communication connection.
In the embodiment of the application, the data connection between the vehicle-mounted terminal and the mobile terminal comprises wired connection or short-distance wireless communication connection. Wherein the wired connection may include a data line connection; the short-range Wireless Communication connection may include a Near Field Communication (NFC) connection, a bluetooth connection, a ZigBee (ZigBee) connection, a Wireless Local Area Network (WLAN) connection, an Infrared Data Association (IrDA) connection, a Radio Frequency Identification (RFID) connection, an Ultra Wide Band (UWB) connection, and the like.
In one possible design, the apparatus 30 further includes: the second positioning module 304 is configured to, when the strength of the first positioning signal is smaller than the strength of the second positioning signal, enable the vehicle-mounted terminal to perform positioning according to the positioning data of the vehicle-mounted terminal.
And when the intensity of the first positioning signal is smaller than that of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the vehicle-mounted terminal. For example, if it is determined that the first positioning signal strength of the mobile terminal is 3 and the second positioning signal strength of the vehicle-mounted terminal is 4, the first positioning signal strength 3 of the mobile terminal is smaller than the second positioning signal strength 4 of the vehicle-mounted terminal, so that the vehicle-mounted terminal performs positioning according to the positioning data of the vehicle-mounted terminal.
Under the condition that the first positioning signal intensity of the mobile terminal is smaller than the second positioning signal intensity of the vehicle-mounted terminal, namely the positioning signal intensity of the vehicle-mounted terminal is larger than the positioning signal intensity of the mobile terminal, the vehicle-mounted terminal can also determine the distance between each second satellite of the M second satellites corresponding to the vehicle-mounted terminal and the vehicle-mounted terminal through the method, and the position of the vehicle-mounted terminal is calculated according to the distance between each second satellite of the M second satellites and the vehicle-mounted terminal and the position information, so that the vehicle positioning is realized.
Optionally, the mobile terminal may also determine, by using the above method, a distance between each of the N first satellites corresponding to the mobile terminal and the mobile terminal, calculate a position of the mobile terminal according to the distance between each of the N first satellites and the mobile terminal and the position information, and after the vehicle-mounted terminal obtains the position calculated by the mobile terminal through data connection, determine the position of the mobile terminal as the position of the vehicle-mounted terminal, thereby implementing vehicle positioning.
Because the existing mobile terminal has better performance and can realize quick positioning through modes such as networking, the positioning speed and the positioning accuracy of the vehicle can be improved by using the mobile terminal for positioning under the conditions of high positioning speed and high positioning accuracy of the mobile terminal.
It should be noted that, for the content that is not mentioned in the embodiment corresponding to fig. 3, reference may be made to the description of the method embodiment, and details are not described here again.
In the embodiment of the application, data connection between the vehicle-mounted terminal and the mobile terminal is established; acquiring first positioning signal intensity of the mobile terminal and second positioning signal intensity of the vehicle-mounted terminal; when the first positioning signal intensity is determined to be greater than the second positioning signal intensity, the vehicle-mounted terminal is enabled to be positioned according to the positioning data of the mobile terminal, the positioning speed is higher when the positioning signal intensity is larger, and the positioning accuracy is higher.
Referring to fig. 4, fig. 4 is a schematic diagram of a composition structure of an electronic device according to an embodiment of the present application, where the device 40 includes a processor 401, a memory 402, and a communication interface 403. The processor 401 is connected to the memory 402 and the communication interface 403, for example, the processor 401 may be connected to the memory 402 and the communication interface 403 through a bus.
The processor 401 is configured to support the electronic device to perform corresponding functions in the vehicle positioning method described in fig. 2. The processor 401 may be a Central Processing Unit (CPU), a Network Processor (NP), a hardware chip, or any combination thereof. The hardware chip may be an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
The memory 402 is used to store program codes and the like. Memory 402 may include Volatile Memory (VM), such as Random Access Memory (RAM); the memory 402 may also include a non-volatile memory (NVM), such as a read-only memory (ROM), a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); the memory 402 may also comprise a combination of memories of the kind described above.
The communication interface 403 is used for transmitting or receiving data.
establishing data connection between the vehicle-mounted terminal and the mobile terminal;
acquiring first positioning signal intensity of the mobile terminal and second positioning signal intensity of the vehicle-mounted terminal;
and when the strength of the first positioning signal is determined to be greater than the strength of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the mobile terminal.
Optionally, the processor 401 performs acquiring the first positioning signal strength of the mobile terminal, including: acquiring ephemeris information of the mobile terminal based on the data connection to acquire positioning data of the mobile terminal;
and determining the strength of a first positioning signal of the mobile terminal according to the ephemeris information of the mobile terminal.
Optionally, the processor 401 performs the operation of determining the first positioning signal strength of the mobile terminal according to the ephemeris information of the mobile terminal, including:
determining N first satellites according to ephemeris information of the mobile terminal, wherein the N first satellites are the first N satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the mobile terminal, and N is an integer greater than or equal to 4;
and acquiring N positioning signal intensities corresponding to the N first satellites, and calculating the average value of the N positioning signal intensities to be used as the first positioning signal intensity of the mobile terminal, wherein one first satellite corresponds to one positioning signal intensity.
Optionally, the processor 401 performs the operation of acquiring the second positioning signal strength of the vehicle-mounted terminal, including:
acquiring ephemeris information of the vehicle-mounted terminal to acquire positioning data of the vehicle-mounted terminal;
determining M second satellites according to ephemeris information of the vehicle-mounted terminal, wherein the M second satellites are the first M satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the vehicle-mounted terminal, and M is an integer greater than or equal to 4;
and acquiring M positioning signal intensities corresponding to the M second satellites, and calculating the average value of the M positioning signal intensities to be used as the second positioning signal intensity of the vehicle-mounted terminal, wherein one second satellite corresponds to one positioning signal intensity.
Optionally, the data connection comprises a wired connection or a short-range wireless communication connection.
Optionally, the processor 401 may call the program code to perform the following operations:
and when the intensity of the first positioning signal is smaller than the intensity of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the vehicle-mounted terminal.
It should be noted that, the implementation of each operation may also correspond to the corresponding description with reference to the above method embodiment; the processor 401 may also cooperate with the communication interface 403 to perform other operations in the above-described method embodiments.
Embodiments of the present application also provide a computer-readable storage medium, which stores a computer program, the computer program comprising program instructions, which when executed by a computer, the computer may be a part of the above mentioned electronic device, cause the computer to perform the method according to the foregoing embodiments. Such as the processor 401 described above. The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
In the present application, "a and/or B" means one of the following cases: a, B, A and B. "at least one of … …" refers to any combination of the listed items or any number of the listed items, e.g., "at least one of A, B and C" refers to one of: any one of seven cases, a, B, C, a and B, B and C, a and C, A, B and C.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The method and the related apparatus provided by the embodiments of the present application are described with reference to the flowchart and/or the structural diagram of the method provided by the embodiments of the present application, and each flow and/or block of the flowchart and/or the structural diagram of the method, and the combination of the flow and/or block in the flowchart and/or the block diagram can be specifically implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks of the block diagram. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block or blocks of the block diagram. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block or blocks.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.
Claims (10)
1. A vehicle positioning method, characterized by comprising:
establishing data connection between the vehicle-mounted terminal and the mobile terminal;
acquiring first positioning signal intensity of the mobile terminal and second positioning signal intensity of the vehicle-mounted terminal;
and when the strength of the first positioning signal is determined to be greater than the strength of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the mobile terminal.
2. The method of claim 1, wherein the obtaining the first positioning signal strength of the mobile terminal comprises:
acquiring ephemeris information of the mobile terminal based on the data connection to acquire positioning data of the mobile terminal;
and determining the strength of a first positioning signal of the mobile terminal according to the ephemeris information of the mobile terminal.
3. The method of claim 2, wherein determining the first positioning signal strength of the mobile terminal according to the ephemeris information of the mobile terminal comprises:
determining N first satellites according to ephemeris information of the mobile terminal, wherein the N first satellites are the first N satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the mobile terminal, and N is an integer greater than or equal to 4;
and acquiring N positioning signal intensities corresponding to the N first satellites, and calculating the average value of the N positioning signal intensities to be used as the first positioning signal intensity of the mobile terminal, wherein one first satellite corresponds to one positioning signal intensity.
4. The method according to claim 1, wherein the obtaining the second positioning signal strength of the vehicle-mounted terminal comprises:
acquiring ephemeris information of the vehicle-mounted terminal to acquire positioning data of the vehicle-mounted terminal;
determining M second satellites according to ephemeris information of the vehicle-mounted terminal, wherein the M second satellites are the first M satellites with the maximum positioning signal intensity in a plurality of satellites corresponding to the vehicle-mounted terminal, and M is an integer greater than or equal to 4;
and acquiring M positioning signal intensities corresponding to the M second satellites, and calculating the average value of the M positioning signal intensities to be used as the second positioning signal intensity of the vehicle-mounted terminal, wherein one second satellite corresponds to one positioning signal intensity.
5. The method of claim 1 or 2, wherein the data connection comprises a wired connection or a short-range wireless communication connection.
6. The method of claim 1, further comprising: and when the intensity of the first positioning signal is smaller than the intensity of the second positioning signal, the vehicle-mounted terminal is positioned according to the positioning data of the vehicle-mounted terminal.
7. A vehicle positioning device, comprising:
the data connection establishing module is used for establishing data connection between the vehicle-mounted terminal and the mobile terminal;
the signal intensity acquisition module is used for acquiring first positioning signal intensity of the mobile terminal and acquiring second positioning signal intensity of the vehicle-mounted terminal;
and the first positioning module is used for positioning the vehicle-mounted terminal according to the positioning data of the mobile terminal when the first positioning signal strength is determined to be greater than the second positioning signal strength.
8. The apparatus of claim 7, wherein the signal strength acquisition module is specifically configured to:
acquiring ephemeris information of the mobile terminal based on the data connection to acquire positioning data of the mobile terminal;
and determining the strength of a first positioning signal of the mobile terminal according to the ephemeris information of the mobile terminal.
9. An electronic device comprising a processor, a memory and a communication interface, the processor, the memory and the communication interface being interconnected, wherein the communication interface is configured to send or receive data, the memory is configured to store program code, and the processor is configured to invoke the program code to perform the method of any of claims 1-6.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to carry out the method according to any one of claims 1-6.
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| CN202010050223.4A CN113141601A (en) | 2020-01-16 | 2020-01-16 | Vehicle positioning method, device and equipment |
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| CN202010050223.4A CN113141601A (en) | 2020-01-16 | 2020-01-16 | Vehicle positioning method, device and equipment |
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