Vehicle-mounted ETC tag-based vehicle searching method, vehicle-mounted ETC tag and system

Abstract

The embodiment of the application discloses a vehicle searching method based on a vehicle-mounted ETC label, a vehicle-mounted ETC label and a system, and relates to positioning technology.The method comprises the following steps: the vehicle-mounted ETC label acquires first current positioning information of the vehicle-mounted ETC label from a positioning module in real time, and acquires second current positioning information of a terminal in real time; the vehicle-mounted ETC label calculates the distance between the first current positioning information and the second current positioning information in real time; if it is determined that the distance exceeds a set threshold, the first current positioning information is sent to a third communication module of the terminal through a first communication module; and if it is determined that the distance does not exceed the set threshold, the first current positioning information is sent to a fourth communication module of the terminal through a second communication module.The vehicle searching scheme based on the vehicle-mounted ETC label is provided, and the vehicle searching demand of a user is met.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to positioning technology, and in particular to a vehicle search method based on a vehicle-mounted ETC tag, a vehicle-mounted ETC tag and a system. BACKGROUND

[0002] With the development of China's expressways, the sales of automobiles are increasing year by year, and the expressway tolls are increasingly moving towards an intelligent, automatic, electronic, non-stop toll collection system (ETC) tag induction payment mode.

[0003] At present, the function of the vehicle-mounted ETC tag is limited to the automatic induction payment function of the expressway toll station. With more and more users having the need to search for vehicles, the existing vehicle-mounted ETC tag cannot meet the needs of users. SUMMARY

[0004] Embodiments of the present application provide a vehicle search method based on a vehicle-mounted ETC tag, a vehicle-mounted ETC tag and a system to provide a vehicle search scheme based on a vehicle-mounted ETC tag and meet the needs of users to search for vehicles.

[0005] In a first aspect, embodiments of the present application provide a vehicle search method based on a vehicle-mounted ETC tag, the vehicle-mounted ETC tag being integrated with a positioning module, a first communication module and a second communication module; the method comprising:

[0006] The vehicle-mounted ETC tag acquires first current positioning information of the vehicle-mounted ETC tag from the positioning module in real time, and acquires second current positioning information of a terminal in real time;

[0007] The vehicle-mounted ETC tag calculates the distance between the first current positioning information and the second current positioning information in real time; if it is determined that the distance exceeds a set threshold, the first current positioning information is sent to a third communication module of the terminal through the first communication module; if it is determined that the distance does not exceed the set threshold, the first current positioning information is sent to a fourth communication module of the terminal through the second communication module;

[0008] The communication distance of the first communication module and the third communication module is greater than the communication distance of the second communication module and the fourth communication module.

[0009] In a second aspect, embodiments of the present application also provide a vehicle-mounted ETC tag, comprising: a processor, an ETC module, a positioning module, a first communication module and a second communication module connected to the processor;

[0010] The processor is configured to acquire first current positioning information of the vehicle-mounted ETC label from the positioning module in real time, and acquire second current positioning information of the terminal in real time;

[0011] The first current positioning information is sent to the third communication module of the terminal through the first communication module if it is determined that the distance exceeds the set threshold, and the first current positioning information is sent to the fourth communication module of the terminal through the second communication module if it is determined that the distance does not exceed the set threshold.

[0012] The communication distance of the first communication module and the third communication module is greater than the communication distance of the second communication module and the fourth communication module.

[0013] In a third aspect, the embodiments of the present application also provide a vehicle searching system based on a vehicle-mounted ETC label, which comprises a vehicle-mounted ETC label and a terminal.

[0014] The vehicle-mounted ETC label is configured to acquire first current positioning information of the vehicle-mounted ETC label from the positioning module in real time, and acquire second current positioning information of the terminal in real time; the vehicle-mounted ETC label is configured to calculate the distance between the first current positioning information and the second current positioning information in real time; the first current positioning information is sent to the third communication module of the terminal through the first communication module if it is determined that the distance exceeds the set threshold, and the first current positioning information is sent to the fourth communication module of the terminal through the second communication module if it is determined that the distance does not exceed the set threshold.

[0015] The terminal is configured to send the second current positioning information to the vehicle-mounted ETC label after receiving the first current positioning information.

[0016] The communication distance of the first communication module and the third communication module is greater than the communication distance of the second communication module and the fourth communication module.

[0017] The embodiment of the present application integrates a positioning module, a first communication module with a long communication distance and a second communication module with a short communication distance in a vehicle-mounted ETC label, so that the vehicle-mounted ETC label has the functions of vehicle positioning, short-distance communication and long-distance communication; on this basis, the vehicle-mounted ETC label calculates the distance between the first current positioning information and the second current positioning information in real time; if it is determined that the distance exceeds a set threshold, the first current positioning information is sent to the third communication module of the terminal through the first communication module with a long communication distance; if it is determined that the distance does not exceed the set threshold, the first current positioning information is sent to the fourth communication module of the terminal through the second communication module, so that short-distance communication is adopted when the distance between the terminal and the vehicle is short, and long-distance communication is adopted when the distance is long; in addition, in the process of searching for the vehicle, point-to-point connection is performed between the vehicle-mounted ETC label and the terminal, and positioning information is interacted in real time, so that the terminal is guided to find the vehicle in real time without the participation of the cloud or a third party, communication resources are saved, and efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a flowchart of a vehicle searching method based on a vehicle-mounted ETC label provided by the embodiment of the present application;

[0019] Figure 2 is a structural schematic diagram of a vehicle-mounted ETC label provided by the embodiment of the present application;

[0020] Figure 3 is a flowchart of another vehicle searching method based on a vehicle-mounted ETC label provided by the embodiment of the present application;

[0021] Figure 4 is a structural schematic diagram of a vehicle searching system based on a vehicle-mounted ETC label provided by the embodiment of the present application. DETAILED DESCRIPTION

[0022] The present application will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0023] Figure 1 is a flowchart of a vehicle searching method based on a vehicle-mounted ETC label provided by the embodiment of the present application, and the present embodiment is applicable to the case of reverse vehicle searching through a vehicle-mounted ETC label.

[0024] The vehicle-mounted ETC label integrates a processor, an ETC module, a positioning module, a first communication module and a second communication module connected with the processor, as shown in Figure 2The communication distance of the first communication module is greater than the communication distance of the second communication module. Optionally, the first communication module includes a second generation mobile communication technology 2G network module, a third generation mobile communication technology 3G network module, a fourth generation mobile communication technology 4G network module, or a fifth generation mobile communication technology 5G network module; and the second communication module includes a wireless wideband WIFI module or a Bluetooth module. The WIFI module or the Bluetooth module is suitable for short-distance communication, and the 2G, 3G, 4G, and 5G network modules are suitable for long-distance communication.

[0025] Optionally, the positioning module can be a GPS (Global Positioning System) module or a Beidou module, and is used for positioning the vehicle-mounted ETC label.

[0026] Optionally, the positioning module is integrated in the first communication module or the second communication module. For example, the GPS module is integrated in a 5G low-power chip, so that one chip is used to realize the functions of positioning and remote communication, thereby reducing the number of integrated chips.

[0027] Optionally, the ETC module is used for radio frequency induction and performs basic operations such as high-speed payment.

[0028] The processor is used for data processing and function control of each module.

[0029] In combination with Figure 1 and Figure 2 , the vehicle searching method based on the vehicle-mounted ETC label includes the following steps.

[0030] In S110, the vehicle-mounted ETC label acquires first current positioning information of the vehicle-mounted ETC label and second current positioning information of a terminal in real time.

[0031] The vehicle-mounted ETC module acquires the first current positioning information and the second current positioning information of the terminal at intervals of a set time. The set time can be 1 second or 2 seconds.

[0032] The vehicle-mounted ETC label can acquire the second current positioning information of the terminal from the terminal, or can acquire the second current positioning information of the terminal from a cloud server. The embodiment does not limit the acquisition channel and mode of the second current positioning information, which will be described in the following embodiments.

[0033] The terminal includes but is not limited to a mobile phone, a computer, a wearable device, and the like. The user can perform the vehicle searching operation through the terminal, which will be described in the following embodiments.

[0034] It should be noted that the first and the second are only used to distinguish the positioning information of the vehicle-mounted ETC label and the terminal, and do not have any sequence limitation.

[0035] S120, the vehicle-mounted ETC tag calculates the distance between the first current positioning information and the second current positioning information in real time.

[0036] After obtaining a set of first current positioning information and second current positioning information, distance calculation is performed to obtain the real-time distance between the ETC tag and the terminal. Obviously, as the user walks, the terminal approaches or moves away from the vehicle-mounted ETC tag, the calculated distance also changes in real time.

[0037] S130, the vehicle-mounted ETC tag determines whether the distance exceeds a set threshold value; if yes, jump to S140; if no, jump to S150.

[0038] The set threshold value can be determined according to the maximum transmission distance of the first communication module or the third communication module, for example, the maximum transmission distance of Bluetooth is 300 meters, and the set threshold value is set to 300 meters.

[0039] S140, the first current positioning information is sent to the third communication module of the terminal through the first communication module.

[0040] S150, the first current positioning information is sent to the fourth communication module of the terminal through the second communication module.

[0041] The terminal includes the same third communication module as the first communication module, and the same fourth communication module as the second communication module. Obviously, the communication distance of the third communication module is greater than that of the fourth communication module.

[0042] If the distance exceeds the set threshold value, the vehicle-mounted ETC tag searches for the third communication module corresponding to the second current positioning information through the first communication module, establishes a communication connection with the third communication module, and sends the first current positioning information based on the communication link. After receiving the first current positioning information, the terminal sends the second current positioning information to the vehicle-mounted ETC tag based on the communication link.

[0043] If the threshold value does not exceed the set threshold value. The vehicle-mounted ETC tag searches for the fourth communication module corresponding to the second current positioning information through the second communication module, establishes a communication connection with the fourth communication module, and sends the first current positioning information based on the communication link. After receiving the first current positioning information, the terminal sends the second current positioning information to the vehicle-mounted ETC tag based on the communication link.

[0044] The embodiment of the present application integrates a positioning module, a first communication module with a long communication distance and a second communication module with a short communication distance in a vehicle-mounted ETC label, so that the vehicle-mounted ETC label has the functions of vehicle positioning, short-distance communication and long-distance communication; on this basis, the vehicle-mounted ETC label calculates the distance between the first current positioning information and the second current positioning information in real time; if it is determined that the distance exceeds a set threshold, the first current positioning information is sent to the third communication module of the terminal through the first communication module with a long communication distance; if it is determined that the distance does not exceed the set threshold, the first current positioning information is sent to the fourth communication module of the terminal through the second communication module, so that short-distance communication is adopted when the distance between the terminal and the vehicle is short, and long-distance communication is adopted when the distance is long; in addition, in the process of searching for the vehicle, point-to-point connection is performed between the vehicle-mounted ETC label and the terminal, and the positioning information is interacted in real time, so that the terminal is guided to find the vehicle in real time, without the participation of the cloud or the third party, saving the communication resources and improving the efficiency.

[0045] In the above embodiment and the following embodiment, the vehicle-mounted ETC label acquiring the second current positioning information of the terminal in real time includes the following two optional implementation modes, 1) the vehicle-mounted ETC label acquires the second current positioning information of the terminal from the positioning instruction sent by the cloud server in response to the positioning instruction; wherein the positioning instruction is obtained by the cloud server performing semantic recognition on the voice information of the user uploaded by the terminal and the second current positioning information; 2) the vehicle-mounted ETC label receives the second current positioning information, wherein the second current positioning information is sent by the terminal after receiving the first current positioning information.

[0046] Based on the above two optional implementation modes, Figure 3 is another flowchart of a vehicle-mounted ETC label-based vehicle searching method provided by the embodiment of the present application, including the following steps:

[0047] S310, the vehicle-mounted ETC label acquires the second current positioning information of the terminal from the positioning instruction sent by the cloud server in response to the positioning instruction; and acquires the first current positioning information of the vehicle-mounted ETC label from the positioning module in real time.

[0048] The positioning instruction is obtained by the cloud server performing semantic recognition on the voice information of the user uploaded by the terminal and the second current positioning information.

[0049] Specifically, the terminal is installed with a car searching application, collects voice information of a user, vehicle identification (such as a license plate number or a serial number of a vehicle-mounted ETC tag), and obtains second current positioning information from a positioning module of the terminal, and uploads them to a cloud server. A voiceprint processing system of the cloud server receives the voice information, performs voiceprint processing, and sends the voiceprint processing result to a semantic processing system, so as to obtain an initial positioning instruction. Then, the second current positioning information is added as an additional parameter to the initial positioning instruction to form a final positioning instruction.

[0050] The cloud server pre-obtains first current positioning information of the vehicle-mounted ETC tag, and issues the positioning instruction according to the first current positioning information after forming the positioning instruction.

[0051] After receiving the positioning instruction, the vehicle-mounted ETC tag starts to interact with the terminal to obtain the positioning information in a point-to-point manner, and no longer interacts with the cloud.

[0052] S320, the vehicle-mounted ETC tag calculates the distance between the first current positioning information and the second current positioning information in real time.

[0053] S321, the vehicle-mounted ETC tag determines whether the distance is less than a specified value; if yes, jump to S370; if no, continue to execute S322.

[0054] S322, the vehicle-mounted ETC tag determines whether an end instruction is received; if yes, jump to S370; if no, continue to execute S330.

[0055] Optionally, when the distance is less than a specified value, such as 2 meters, the vehicle-mounted ETC tag ends the car searching operation; or, an end instruction sent by the terminal in response to a user triggering an end car searching button is received, so as to end the car searching operation. Otherwise, it is continuously determined which communication module is used to send the first current positioning information.

[0056] S330, the vehicle-mounted ETC tag determines whether the distance exceeds a set threshold; if yes, jump to S340; if no, jump to S350.

[0057] S340, the vehicle-mounted ETC tag sends the first current positioning information to a third communication module of the terminal through the first communication module. Continue to execute S360.

[0058] S350, the vehicle-mounted ETC tag sends the first current positioning information to a fourth communication module of the terminal through the second communication module. Continue to execute S360.

[0059] S360, the vehicle-mounted ETC tag receives the second current positioning information, wherein the second current positioning information is sent by the terminal after receiving the first current positioning information. Return to execute S320.

[0060] S370, the vehicle-mounted ETC tag ends the operation.

[0061] In the above and below embodiments, after the vehicle-mounted ETC tag determines that the distance changes from not exceeding the set threshold to exceeding the set threshold, the vehicle-mounted ETC tag further sends a first switching instruction to the terminal, the first switching instruction being used to switch the fourth communication module of the terminal to the third communication module. Conversely, after the vehicle-mounted ETC tag determines that the distance changes from exceeding the set threshold to not exceeding the set threshold, the vehicle-mounted ETC tag further sends a second switching instruction to the terminal, the second switching instruction being used to switch the third communication module of the terminal to the fourth communication module.

[0062] Specifically, when the distance switches between exceeding the set threshold and not exceeding the set threshold, the vehicle-mounted ETC tag needs to switch between the first communication module and the second communication module. In order to ensure the communication efficiency and success rate, the vehicle-mounted ETC tag sends the first / second switching instruction to the terminal, so that the terminal switches the communication module in response to the first / second switching instruction. After the communication module is switched, the communication connection needs to be re-established, and the positioning information is interacted based on the re-established communication connection.

[0063] In the above and below embodiments, after the vehicle-mounted ETC tag sends the first current positioning information to the third communication module of the terminal through the first communication module, the vehicle-mounted ETC tag further sends a navigation instruction to the third communication module of the terminal through the first communication module, the navigation instruction being used to trigger the terminal to navigate. Similarly, after the vehicle-mounted ETC tag sends the first current positioning information to the fourth communication module of the terminal through the second communication module, the vehicle-mounted ETC tag further sends a navigation instruction to the third communication module of the terminal through the first communication module, the navigation instruction being used to trigger the terminal to navigate.

[0064] Optionally, in order to avoid the situation that the navigation application of the terminal is accidentally exited halfway and needs to be manually restarted by the user, the vehicle-mounted ETC tag can send the navigation instruction after sending the first current positioning information each time, so as to maintain the normal operation of the navigation application of the terminal and free the user from operation.

[0065] The navigation application of the terminal plans a route to the destination with the first current positioning information as the destination, and guides the user to go to the destination. Optionally, after the terminal receives the first current positioning information, the terminal performs voice broadcast on the first current positioning information, and then navigates according to the navigation instruction after the voice broadcast is completed, so as to improve the experience and interaction of the user.

[0066] Reference is made to Figure 2The embodiment of the present application also provides a vehicle-mounted ETC label, comprising: a processor, an ETC module, a positioning module, a first communication module and a second communication module connected with the processor.

[0067] The processor is used for acquiring first current positioning information of the vehicle-mounted ETC label from the positioning module in real time, and acquiring second current positioning information of a terminal in real time; calculating the distance between the first current positioning information and the second current positioning information in real time; if it is determined that the distance exceeds a set threshold, sending the first current positioning information to a third communication module of the terminal through the first communication module; if it is determined that the distance does not exceed the set threshold, sending the first current positioning information to a fourth communication module of the terminal through the second communication module.

[0068] The communication distance of the first communication module and the third communication module is greater than the communication distance of the second communication module and the fourth communication module.

[0069] Optionally, the positioning module is integrated in the first communication module or the second communication module. Optionally, the vehicle-mounted ETC label further comprises a power module, a voice input / output module and the like, so as to provide more abundant functions for the vehicle-mounted ETC.

[0070] The description of the structure of the vehicle-mounted ETC label and the functions of the modules in the embodiment is referred to the description of the above embodiments, and will not be repeated here.

[0071] Figure 4 A structure schematic diagram of a vehicle searching system based on the vehicle-mounted ETC label is provided in the embodiment, comprising: a vehicle-mounted ETC label and a terminal, wherein the vehicle-mounted ETC label is integrated with a positioning module, a first communication module and a second communication module.

[0072] The vehicle-mounted ETC label is used for acquiring first current positioning information of the vehicle-mounted ETC label from the positioning module in real time, and acquiring second current positioning information of a terminal in real time; the vehicle-mounted ETC label calculates the distance between the first current positioning information and the second current positioning information in real time; if it is determined that the distance exceeds a set threshold, sending the first current positioning information to a third communication module of the terminal through the first communication module; if it is determined that the distance does not exceed the set threshold, sending the first current positioning information to a fourth communication module of the terminal through the second communication module.

[0073] The terminal is used for sending the second current positioning information to the vehicle-mounted ETC label after receiving the first current positioning information.

[0074] The communication distance of the first communication module and the third communication module is greater than the communication distance of the second communication module and the fourth communication module.

[0075] Optionally, referring to Figure 4 The system further comprises a cloud server.

[0076] The terminal is further configured to upload the voice information of the user, the vehicle identifier and the second current positioning information to the cloud server.

[0077] The cloud server is configured to obtain a positioning instruction comprising the second current positioning information after performing semantic recognition on the voice information, and send the positioning instruction to the vehicle-mounted ETC tag corresponding to the vehicle identifier.

[0078] The vehicle-mounted ETC tag is configured to obtain the second current positioning information of the terminal from the positioning instruction in response to the positioning instruction sent by the cloud server.

[0079] The description of the structure and function of the vehicle-mounted ETC tag, the terminal and the cloud server in this embodiment is the same as that in the above embodiments, and will not be repeated here.

[0080] Note that the above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A vehicle location method based on an onboard ETC tag, characterized in that, The vehicle-mounted ETC tag integrates a positioning module, a first communication module, and a second communication module; the method includes: The vehicle-mounted ETC tag obtains its first current location information from the positioning module in real time, and also obtains the terminal's second current location information in real time. The vehicle-mounted ETC tag calculates the distance between the first and second current location information in real time. If the distance exceeds a set threshold, the vehicle-mounted ETC tag searches for a third communication module corresponding to the second current location information through the first communication module and establishes a communication connection with the third communication module. The first current location information is then sent to the terminal's third communication module through the first communication module. If the distance does not exceed the set threshold, the vehicle-mounted ETC tag searches for a fourth communication module corresponding to the second current location information through the second communication module and establishes a communication connection with the fourth communication module. The first current location information is then sent to the terminal's fourth communication module through the second communication module. Wherein, the communication distance between the first communication module and the third communication module is greater than the communication distance between the second communication module and the fourth communication module; After the vehicle-mounted ETC tag determines that the distance has changed from not exceeding the set threshold to exceeding the set threshold, the method further includes: Send a first switching instruction to the terminal, the first switching instruction being used to switch the fourth communication module of the terminal to the third communication module; After the vehicle-mounted ETC tag determines that the distance has changed from exceeding a set threshold to not exceeding a set threshold, the method further includes: A second switching instruction is sent to the terminal, the second switching instruction being used to switch the terminal's third communication module to the fourth communication module.

2. The method according to claim 1, characterized in that, The first communication module and the third communication module include a 2G network module, a 3G network module, a 4G network module, or a 5G network module. The second and fourth communication modules include a wireless broadband WIFI module or a Bluetooth module.

3. The method according to claim 1, characterized in that, The vehicle-mounted ETC tag acquires the terminal's second current location information in real time, including: The vehicle-mounted ETC tag responds to a positioning command sent by the cloud server and obtains the terminal's second current positioning information from the positioning command; The terminal uploads the user's voice information, vehicle identification, and the second current location information to the cloud server; the cloud server performs semantic recognition on the voice information, obtains a location instruction including the second current location information, and sends the location instruction to the vehicle-mounted ETC tag corresponding to the vehicle identification.

4. The method according to any one of claims 1-3, characterized in that, The vehicle-mounted ETC tag acquires the terminal's second current location information in real time, including: The vehicle-mounted ETC tag receives the second current location information, wherein the second current location information is sent by the terminal after receiving the first current location information.

5. The method according to claim 1, characterized in that, After the vehicle-mounted ETC tag sends the first current location information to the third communication module of the terminal via the first communication module, it further includes: The vehicle-mounted ETC tag sends a navigation command to the third communication module of the terminal through the first communication module, and the navigation command is used to trigger the terminal to perform navigation; After the vehicle-mounted ETC tag sends the first current location information to the fourth communication module of the terminal via the second communication module, the method further includes: The vehicle-mounted ETC tag sends navigation instructions to the third communication module of the terminal through the first communication module, and the navigation instructions are used to trigger the terminal to perform navigation.

6. A vehicle-mounted ETC tag, characterized in that, include: The processor, and the ETC module, positioning module, first communication module and second communication module connected to the processor; The processor is used to obtain the first current location information of the vehicle-mounted ETC tag from the positioning module in real time, and to obtain the second current location information of the terminal in real time; The distance between the first current location information and the second current location information is calculated in real time. If the distance exceeds a set threshold, the vehicle-mounted ETC tag searches for a third communication module corresponding to the second current location information through the first communication module and establishes a communication connection with the third communication module. The first current location information is then sent to the third communication module of the terminal through the first communication module. If the distance does not exceed the set threshold, the vehicle-mounted ETC tag searches for a fourth communication module corresponding to the second current location information through the second communication module and establishes a communication connection with the fourth communication module. The first current location information is then sent to the fourth communication module of the terminal through the second communication module. Wherein, the communication distance between the first communication module and the third communication module is greater than the communication distance between the second communication module and the fourth communication module; After the vehicle-mounted ETC tag determines that the distance has changed from not exceeding the set threshold to exceeding the set threshold, the method further includes: Send a first switching instruction to the terminal, the first switching instruction being used to switch the fourth communication module of the terminal to the third communication module; After the vehicle-mounted ETC tag determines that the distance has changed from exceeding a set threshold to not exceeding a set threshold, the method further includes: A second switching instruction is sent to the terminal, the second switching instruction being used to switch the terminal's third communication module to the fourth communication module.

7. The vehicle-mounted ETC tag according to claim 6, characterized in that, The positioning module is integrated into either the first communication module or the second communication module.

8. A vehicle location system based on an onboard ETC tag, characterized in that, include: The vehicle-mounted ETC tag and terminal, wherein the vehicle-mounted ETC tag integrates a positioning module, a first communication module, and a second communication module; The vehicle-mounted ETC tag is used to obtain the first current location information of the vehicle-mounted ETC tag in real time from the positioning module, and to obtain the second current location information of the terminal in real time; the vehicle-mounted ETC tag calculates the distance between the first current location information and the second current location information in real time; if it is determined that the distance exceeds a set threshold, the vehicle-mounted ETC tag searches for a third communication module corresponding to the second current location information through the first communication module, and establishes a communication connection with the third communication module; the first current location information is sent to the third communication module of the terminal through the first communication module; if it is determined that the distance does not exceed the set threshold, the vehicle-mounted ETC tag searches for a fourth communication module corresponding to the second current location information through the second communication module, and establishes a communication connection with the fourth communication module; The first current location information is sent to the fourth communication module of the terminal through the second communication module; The terminal is used to send the second current location information to the vehicle-mounted ETC tag after receiving the first current location information; Wherein, the communication distance between the first communication module and the third communication module is greater than the communication distance between the second communication module and the fourth communication module; After the vehicle-mounted ETC tag determines that the distance has changed from not exceeding the set threshold to exceeding the set threshold, the method further includes: Send a first switching instruction to the terminal, the first switching instruction being used to switch the fourth communication module of the terminal to the third communication module; After the vehicle-mounted ETC tag determines that the distance has changed from exceeding a set threshold to not exceeding a set threshold, the method further includes: A second switching instruction is sent to the terminal, the second switching instruction being used to switch the terminal's third communication module to the fourth communication module.

9. The system according to claim 8, characterized in that, It also includes cloud servers; The terminal is also used to upload the user's voice information, vehicle identification, and the second current location information to the cloud server; The cloud server performs semantic recognition on the voice information to obtain a positioning instruction including the second current positioning information, and sends the positioning instruction to the vehicle-mounted ETC tag corresponding to the vehicle identifier; The vehicle-mounted ETC tag is used to respond to the positioning command sent by the cloud server and obtain the second current positioning information of the terminal from the positioning command.

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