Network signal strength value processing systems, methods, apparatus, and storage media

Abstract

This invention provides a network signal strength value processing system, method, apparatus, and storage medium. The system includes an emergency call module and communication unit, a vehicle-mounted unit, and a processing terminal. The emergency call module and communication unit collect log information associated with the vehicle's driving route and send the log information to the vehicle-mounted unit. The log information includes geographical location information, signal strength value information, connection status information, network status information, and a collection timestamp. The vehicle-mounted unit receives and stores the log information. The processing terminal performs text parsing of the log information, associates the geographical location information with the signal strength value information, connection status information, and network status information based on the collection timestamp, displays the driving route and one or more of the signal strength value, connection status, and network status on a map, and displays the filtered signal strength. This invention intuitively optimizes signal display and recording.

Description

Technical Field

[0001] The embodiments of the present invention generally relate to the field of vehicle manufacturing technology, and more specifically, to a network signal strength value processing system, method, apparatus and storage medium. Background Technology

[0002] The OCU (Online Connectivity Unit) is an emergency call module and communication unit; similar modules in other vehicles may be called TBOX (Telematics Box) or TCU (Telematics Control Unit). The OCU has a fixed built-in SIM card for logging into the mobile network. Its function is to send and receive data and commands for Car-Net-Remote services. It achieves a permanent internet connection via a wireless network, ensuring data transmission between the backend and the vehicle, allowing commands to be received, processed, and executed even after the ignition is turned off. The OCU is one of the most important components of a vehicle networking system.

[0003] During vehicle manufacturing and testing, network disconnections and poor network signals frequently occur in certain areas during road tests, but it is difficult to pinpoint the specific areas using vehicle logs, which makes it challenging to plan road test routes.

[0004] For network disconnections and poor signal issues along the route, the only way to record the network signal status is to do so manually, which has very low accuracy and incurs additional labor costs. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, in a first aspect, embodiments of the present invention provide a network signal strength value processing system. The system includes an emergency call module and communication unit installed in a vehicle, a vehicle-mounted infotainment system, and a processing terminal remotely connected to the vehicle. The emergency call module and communication unit are used to: collect log information associated with the vehicle's driving route and send the log information to the vehicle-mounted infotainment system. The log information includes geographical location information, signal strength value information, connection status information, network status information, and a collection timestamp. The vehicle-mounted infotainment system is used to: receive and store the log information. The processing terminal is used for: acquiring log information stored in the vehicle's infotainment system; parsing the log information; associating the geographic location information with the signal strength value information, the connection status information, and the network status information based on the acquisition timestamp; determining geographic location information where the number of consecutive records of the same geographic location information exceeds a predefined record count threshold and / or where the deviation of the geographic location information exceeds a predefined accuracy threshold as reasonable geographic location information, and saving the reasonable geographic location information; displaying the vehicle's driving route on a map based on the reasonable geographic location information associated with the vehicle's driving route; receiving a signal display instruction via a human-machine interface, wherein the signal display instruction includes a vehicle driving route identifier; displaying one or more of the signal strength value, connection status, and network status associated with the reasonable geographic location corresponding to the vehicle driving route identifier on the map; receiving a signal strength filtering instruction via a human-machine interface, wherein the signal strength filtering instruction includes a signal strength filtering threshold; determining the signal strength filtering geographic location associated with the signal strength value that meets the signal strength filtering threshold among the reasonable geographic locations associated with the vehicle's driving route, and displaying the signal strength filtering geographic location on the map.

[0006] In some embodiments, the processing terminal is further configured to: extract connection status information with a disconnected status from the stored connection status information, mark the geographical location closest to the connection status information as the disconnection point, and store the geographical location information of the disconnection point; receive a disconnection area display instruction via a human-machine interface; and display the disconnection point on the map according to the disconnection area display instruction and the stored geographical location information of the disconnection point.

[0007] In some embodiments, the processing terminal is further configured to: extract network status information with a network-free status from the stored network status information, mark the geographical location closest to the network-free status information as a network-free point, and store the geographical location information of the network-free point; receive a network-free area display instruction via a human-machine interface; and display the network-free point on the map according to the network-free area display instruction and the stored geographical location information of the network-free point.

[0008] In a second aspect, embodiments of the present invention propose a method for processing network signal strength values. The method is applied to a processing terminal and includes: acquiring log information stored in a vehicle's infotainment system that is associated with the vehicle's driving route; the log information includes geographical location information, signal strength value information, connection status information, network status information, and a collection timestamp collected by the vehicle's emergency call module and communication unit; parsing the log information; associating the geographical location information with the signal strength value information, connection status information, and network status information based on the collection timestamp; determining geographical location information where the number of consecutive records of the same geographical location information exceeds a predefined recording count threshold and / or geographical location information where the deviation exceeds a predefined accuracy threshold as reasonable geographical location information, and saving the reasonable geographical location information. The system retrieves and displays the vehicle's travel route on a map based on the reasonable geographical location information associated with the vehicle's travel route. It receives a signal display instruction via a human-machine interface, wherein the signal display instruction includes a vehicle travel route identifier. At a reasonable geographical location on the map associated with the vehicle travel route corresponding to the vehicle travel route identifier, it displays one or more of the following: signal strength value, connection status, and network status corresponding to the reasonable geographical location. It also receives a signal strength filtering instruction via the human-machine interface, wherein the signal strength filtering instruction includes a signal strength filtering threshold. Within the reasonable geographical locations associated with the vehicle travel route, it determines a signal strength filtering geographical location corresponding to a signal strength value that meets the signal strength filtering threshold, and displays the signal strength filtering geographical location on the map.

[0009] In some embodiments, the method further includes: extracting connection status information with a disconnected status from the stored connection status information, marking the geographical location closest to the connection status information as the disconnection point, and storing the geographical location information of the disconnection point.

[0010] In some embodiments, the method further includes: receiving a disconnection area display instruction via a human-machine interface; and displaying the disconnection point on the map according to the stored geographical location information of the disconnection point based on the disconnection area display instruction.

[0011] In some embodiments, the method further includes: extracting network status information with a network-free status from the stored network status information, marking the geographical location closest to the network-free status information as a network-free point, and storing the geographical location information of the network-free point.

[0012] In some embodiments, the method further includes: receiving a command to display a network-free area via a human-machine interface;

[0013] According to the instruction to display no-network areas, the no-network points are displayed on the map based on the stored geographical location information of the no-network points.

[0014] In a third aspect, embodiments of the present invention provide a network signal strength value processing device, which is applied to a processing terminal. The device includes: a log information acquisition module configured to acquire log information associated with a vehicle's driving route stored in a vehicle-mounted system; the log information includes geographical location information, signal strength value information, connection status information, network status information, and a collection timestamp collected by the vehicle's emergency call module and communication unit; a log information parsing module configured to perform text parsing on the log information and associate the geographical location information with the signal strength value information, connection status information, and network status information based on the collection timestamp; and an information deduplication module configured to determine geographical location information where the number of consecutive records of the same geographical location information exceeds a predefined record count threshold and / or geographical location information where the deviation exceeds a predefined accuracy threshold as reasonable geographical location information, and save the reasonable geographical location information; and route information. A display module is configured to display the vehicle's driving route on a map based on the reasonable geographical location information associated with the vehicle's driving route; a signal display instruction receiving module is configured to receive a signal display instruction via a human-machine interface, wherein the signal display instruction includes a vehicle driving route identifier; a signal display module is configured to display one or more of a signal strength value, connection status, and network status corresponding to a reasonable geographical location associated with the vehicle driving route corresponding to the vehicle driving route identifier on the map; a filtering instruction receiving module receives a signal strength filtering instruction via a human-machine interface, wherein the signal strength filtering instruction includes a signal strength filtering threshold; and a filtering display module is configured to determine, within the reasonable geographical locations associated with the vehicle's driving route, a signal strength value corresponding to a signal strength value that meets the signal strength filtering threshold, and display the signal strength filtering geographical location on the map.

[0015] In a fourth aspect, embodiments of the present invention provide a storage medium storing computer-readable instructions that, when executed by a processor, perform the method described according to any of the above embodiments.

[0016] The network signal strength value processing system, method, apparatus, and storage medium proposed in the embodiments of the present invention realize a tool for recording vehicle network signals. It analyzes vehicle logs and combines OCU signal values ​​with geographic coordinates using HTML+JS text parsing techniques, outputting the overall result on a map page. This tool also has the functions of recording OCU disconnection locations and filtering OCU signal strength.

[0017] The technical solution proposed in this invention overcomes the technical difficulties in the prior art and avoids the manual costs associated with recording signals. Displaying network signal conditions on a map page in conjunction with the driving route is more intuitive and facilitates recording the actual route. Through the development of web page files, the display and recording of signals are intuitively optimized, achieving a technological breakthrough. This solution can be widely adopted in vehicle road tests and has promotional value.

[0018] The embodiments of the present invention can parse and display the records of the disconnected area, which facilitates the recording and analysis of problems. Attached Figure Description

[0019] The above and other objects, features, and advantages of embodiments of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated in the drawings by way of example and not limitation, wherein:

[0020] Figure 1 A block diagram of a network signal strength value processing system according to an embodiment of the present invention is shown;

[0021] Figure 2 A flowchart of a network signal strength value processing method according to an embodiment of the present invention is shown;

[0022] Figure 3 A schematic diagram of a map page displaying network signal strength values ​​according to an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of a map page displaying filtered signal strength values ​​according to an embodiment of the present invention is shown;

[0024] Figure 5 A block diagram of a network signal strength value processing apparatus according to an embodiment of the present invention is shown.

[0025] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts. Detailed Implementation

[0026] The principles and spirit of the invention will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are given merely to enable those skilled in the art to better understand and implement the invention, and are not intended to limit the scope of the invention in any way.

[0027] In one aspect, embodiments of the present invention provide a network signal strength value processing system. (See reference...) Figure 1 This illustrates a block diagram of a network signal strength value processing system according to an embodiment of the present invention. Figure 1 As shown, the system includes an emergency call module and communication unit (OCU) installed on the vehicle, a vehicle-mounted infotainment system, and a processing terminal remotely connected to the vehicle.

[0028] The emergency call module and communication unit (OCU) can be used to: collect log information associated with the vehicle's driving route and send the log information to the vehicle's infotainment system. The log information includes geographical location information (e.g., latitude and longitude), signal strength value information, connection status (e.g., whether the OCU is connected to the base station), network status (e.g., whether registration was successful, whether there is a network, etc.) and collection timestamp.

[0029] As an example, the OCU can send log information to the vehicle's infotainment system via the Remote Server Interface (RSI).

[0030] The vehicle's infotainment system can be used to receive and store log information.

[0031] refer to Figure 2 The diagram illustrates a flowchart of a network signal strength value processing method according to an embodiment of the present invention. The functionality of the processing terminal is described below through the steps of the network signal strength value processing method 200 applied to the processing terminal.

[0032] like Figure 2 As shown, method 200 includes steps S201-S208.

[0033] In step S201, log information associated with the vehicle's driving route stored in the vehicle's infotainment system is acquired. This log information includes geographical location (latitude and longitude), signal strength values, connection status, network status, and a timestamp collected by the vehicle's emergency call module and communication unit. For example, the signal strength value collected by the OCU can be between 0 and 100. There is a linear correlation between the signal strength received by the vehicle's infotainment system and the actual dBm signal strength.

[0034] In step S202, the log information is parsed, and the geographical location information is associated with signal strength value information, connection status information, and network status information based on the collection timestamp. For example, the log information can be parsed using Hypertext Markup Language (HTML) and JavaScript (JS).

[0035] As an example, if the signal strength of the OCU changes, the OCU will send a change signal to the vehicle's log. If the signal value changes, the signal value will be recorded during text parsing, and the latitude and longitude information between the next signal value change will be mapped to that signal strength.

[0036] In step S203, geographical location information where the number of consecutive records of the same geographical location information exceeds a predefined recording frequency threshold and / or where the deviation of the geographical location information exceeds a predefined precision threshold is identified as reasonable geographical location information and saved. This step achieves the deduplication of location information. For example, it can be set to record and save a location as reasonable location information if it appears 20 times consecutively or if the deviation of the location information exceeds e*10-6 precision.

[0037] Since the OCU continuously sends location information to the vehicle's infotainment system, a large amount of duplicate location information may occur. Deduplication can remove a large amount of duplicate information, retain meaningful information, save storage space, and reduce the amount of computation required for subsequent data processing.

[0038] In step S204, the vehicle's driving route is displayed on the map based on reasonable geographical location information associated with the vehicle's driving route.

[0039] In step S205, a signal display instruction is received via a human-machine interface, wherein the signal display instruction includes a vehicle driving route identifier.

[0040] In step S206, at a reasonable geographical location on the map corresponding to the vehicle's route identifier, one or more of the following are displayed: signal strength value, connectivity status, and network status. This allows the network connectivity status of the OCU to be displayed throughout the road test. Different signal strength value ranges, connectivity statuses, and network statuses are distinguished and displayed using different methods. For example, different colors are used to represent different signal strength value ranges, with the color of the location information point corresponding to the signal strength. Taking a network signal value range of 0-100 as an example, green can represent a strength value of 100, red can represent a strength value of 0, and the intermediate progressive processing follows the RGB rules.

[0041] refer to Figure 3The diagram illustrates a map page displaying network signal strength values ​​according to an embodiment of the present invention. The map shows vehicle routes, with different display methods used for road segments exhibiting different network signal values, and the actual network signal values ​​are marked near these road segments. As shown, the route includes different network signal values: 48, 26, 0, 72, and 98. In practical applications, road segments with different network signal values ​​can be distinguished using different colors.

[0042] In step S207, a signal strength filtering instruction is received via a human-machine interface, wherein the signal strength filtering instruction includes a signal strength filtering threshold.

[0043] In step S208, within reasonable geographical locations related to the vehicle's travel route, a signal strength filtering geographical location corresponding to a signal strength value that meets a signal strength filtering threshold is determined, and this geographical location is displayed on a map. The signal strength filtering threshold may include an upper limit and / or a lower limit. For example, if the threshold is set to an upper limit, only areas with signal values ​​below that threshold can be displayed.

[0044] refer to Figure 4 This illustrates a schematic diagram of a map page displaying filtered signal strength values ​​according to an embodiment of the present invention. Figure 3 Based on the driving route shown, if the filter limit is set to 50, the following will be displayed: Figure 4 The page shown only displays areas where the signal value is below 50.

[0045] As an embodiment of the present invention, the method may further include: extracting connection status information with a disconnected status from the stored connection status information, marking the geographical location closest to the connection status information as the disconnection point, and storing the geographical location information of the disconnection point, thereby realizing the OCU disconnection area recording.

[0046] In the above embodiments, the method may further include: receiving a disconnection area display instruction via a human-machine interface; and displaying the disconnection point on a map according to the stored geographical location information of the disconnection point based on the disconnection area display instruction, thereby realizing OCU disconnection point display.

[0047] As an embodiment of the present invention, the method may further include: extracting network status information with a network-free status from the stored network status information, marking the geographical location closest to the network-free status information as a network-free point, and storing the geographical location information of the network-free point.

[0048] In the above embodiments, the method may further include: receiving a network-free area display instruction via a human-machine interface; and displaying the network-free point on a map according to the stored geographic location information of the network-free point based on the network-free area display instruction.

[0049] In another aspect, embodiments of the present invention also provide a network signal strength value processing device, which is applied to a processing terminal. (See reference) Figure 5 The diagram illustrates a block diagram of a network signal strength value processing apparatus according to an embodiment of the present invention. The apparatus includes modules 501-508.

[0050] The log information acquisition module 501 can be configured to acquire log information related to the vehicle's driving route stored in the vehicle's infotainment system. The log information includes geographical location information, signal strength value information, connection status information, network status information, and collection timestamps collected by the vehicle's emergency call module and communication unit.

[0051] The log information parsing module 502 can be configured to perform text parsing on log information and associate geographical location information with signal strength value information, connection status information and network status information based on the collection timestamp.

[0052] The information deduplication module 503 can be configured to identify and save reasonable geographical location information that has been recorded the same geographical location information more than a predefined record count threshold and / or whose deviation from the geographical location information exceeds a predefined accuracy threshold.

[0053] The route display module 504 can be configured to display the vehicle's route on a map based on reasonable geographical location information associated with the vehicle's route.

[0054] The signal display instruction receiving module 505 can be configured to receive signal display instructions via a human-machine interface, wherein the signal display instructions include a vehicle travel route identifier.

[0055] The signal display module 506 can be configured to display one or more of the signal strength value, connection status, and network status corresponding to a reasonable geographical location on a map that corresponds to a vehicle route identifier.

[0056] The filtering instruction receiving module 507 can receive signal strength filtering instructions via a human-machine interface, wherein the signal strength filtering instructions include a signal strength filtering threshold.

[0057] The filtering display module 508 can be configured to determine the signal strength filtering geographical location corresponding to the signal strength value that meets the signal strength filtering threshold in a reasonable geographical location related to the vehicle's driving route, and display the signal strength filtering geographical location on a map.

[0058] It should be noted that the functions implemented by each module of the network signal strength value processing device proposed in the embodiments of the present invention correspond one-to-one with each step of the network signal strength value processing method described above. For specific implementation methods, examples and beneficial effects, please refer to the description of the method steps above.

[0059] In another aspect, embodiments of the present invention also provide a storage medium storing computer-readable instructions that, when executed by a processor, perform the network signal strength value processing method described in any of the above embodiments.

[0060] The network signal strength value processing system, method, apparatus, and storage medium proposed in the embodiments of the present invention realize a tool for recording vehicle network signals. It analyzes vehicle logs and combines OCU signal values ​​with geographic coordinates using HTML+JS text parsing techniques, outputting the overall result on a map page. This tool also has the functions of recording OCU disconnection locations and filtering OCU signal strength.

[0061] The technical solution proposed in this invention overcomes the technical difficulties in the prior art and avoids the manual costs associated with recording signals. Displaying network signal conditions on a map page in conjunction with the driving route is more intuitive and facilitates recording the actual route. Through the development of web page files, the display and recording of signals are intuitively optimized, achieving a technological breakthrough. This solution can be widely adopted in vehicle road tests and has promotional value.

[0062] The embodiments of the present invention can parse and display the records of the disconnected area, which facilitates the recording and analysis of problems.

[0063] The foregoing description of embodiments of the invention has been given for illustrative purposes and is not exhaustive, nor is it intended to limit the invention to the exact forms disclosed. Those skilled in the art will understand that various changes can be made without departing from the scope of the invention, and elements therein can be substituted with equivalents. Furthermore, many modifications can be made to adapt particular situations or materials to the teachings of the invention without departing from the basic scope of the invention. Therefore, the invention is not intended to be limited to the specific embodiments disclosed as the best mode contemplated for carrying out the invention; the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A network signal strength value processing system, characterized in that, The system includes an emergency call module and communication unit installed in the vehicle, a vehicle-mounted infotainment system, and a processing terminal remotely connected to the vehicle. The emergency call module and communication unit are used to: collect log information associated with the vehicle's driving route and send the log information to the vehicle's infotainment system. The log information includes geographical location information, signal strength value information, connection status information, network status information, and collection timestamp. The vehicle-mounted system is used to: receive and store the log information; The processing terminal is used for: Retrieve log information stored in the vehicle's infotainment system; The log information is parsed, and the geographical location information is associated with the signal strength value information, the connection status information, and the network status information based on the collection timestamp. Geographical information that records the same geographic location information more than a predefined number of times and / or whose deviation exceeds a predefined accuracy threshold is identified as reasonable geographic location information and the reasonable geographic location information is saved. Based on the reasonable geographical location information associated with the vehicle's driving route, the vehicle's driving route is displayed on the map; Receive signal display instructions via a human-machine interface, wherein the signal display instructions include a vehicle driving route identifier; At a reasonable geographical location on the map related to the vehicle's driving route corresponding to the vehicle's driving route identifier, one or more of the signal strength value, connection status, and network status associated with that reasonable geographical location are displayed. Receive signal strength filtering instructions via a human-machine interface, wherein the signal strength filtering instructions include a signal strength filtering threshold; In reasonable geographical locations related to the vehicle's travel route, a signal strength filtering geographical location associated with a signal strength value that meets the signal strength filtering threshold is determined, and the signal strength filtering geographical location is displayed on the map.

2. The system according to claim 1, characterized in that, The processing terminal is also used for: In the saved connection status information, extract the connection status information that is disconnected, mark the geographical location closest to the connection status information as the disconnection point, and store the geographical location information of the disconnection point. Receive disconnection area display commands via human-machine interface; According to the disconnection area display instruction, the disconnection point is displayed on the map based on the stored geographical location information of the disconnection point.

3. The system according to claim 1, characterized in that, The processing terminal is also used for: In the saved network status information, extract the network status information with no network status, mark the geographical location closest to the network status information with no network status as the no network point, and store the geographical location information of the no network point. Receive instructions to display areas without network access via human-machine interface; According to the instruction to display no-network areas, the no-network points are displayed on the map based on the stored geographical location information of the no-network points.

4. A method for processing network signal strength values, characterized in that, The method is applied to a processing terminal, and the method includes: Obtain log information associated with the vehicle's driving route stored in the vehicle's infotainment system. The log information includes geographical location information, signal strength value information, connection status information, network status information, and collection timestamps collected by the vehicle's emergency call module and communication unit. The log information is parsed, and the geographical location information is associated with the signal strength value information, the connection status information, and the network status information based on the collection timestamp. Geographical information that records the same geographic location information more than a predefined number of times and / or whose deviation exceeds a predefined accuracy threshold is identified as reasonable geographic location information and the reasonable geographic location information is saved. Based on the reasonable geographical location information associated with the vehicle's driving route, the vehicle's driving route is displayed on the map; Receive signal display instructions via a human-machine interface, wherein the signal display instructions include a vehicle driving route identifier; At a reasonable geographical location on the map related to the vehicle's route identifier, display one or more of the following: signal strength value, connection status, and network status corresponding to that reasonable geographical location; Receive signal strength filtering instructions via a human-machine interface, wherein the signal strength filtering instructions include a signal strength filtering threshold; In reasonable geographical locations related to the vehicle's travel route, a signal strength filtering geographical location corresponding to a signal strength value that meets the signal strength filtering threshold is determined, and the signal strength filtering geographical location is displayed on the map.

5. The method according to claim 4, characterized in that, The method further includes: Among the saved connection status information, extract the connection status information that is disconnected, mark the geographical location closest to this connection status information as the disconnection point, and store the geographical location information of the disconnection point.

6. The method according to claim 5, characterized in that, The method further includes: Receive disconnection area display commands via human-machine interface; According to the disconnection area display instruction, the disconnection point is displayed on the map based on the stored geographical location information of the disconnection point.

7. The method according to claim 4, characterized in that, The method further includes: In the saved network status information, extract the network status information of the network status of no network, mark the geographical location closest to the network status information of no network as the no network point, and store the geographical location information of the no network point.

8. The method according to claim 7, characterized in that, The method further includes: Receive instructions to display areas without network access via human-machine interface; According to the instruction to display no-network areas, the no-network points are displayed on the map based on the stored geographical location information of the no-network points.

9. A network signal strength value processing device, characterized in that, The device is used in a processing terminal, and the device includes: The log information acquisition module is configured to acquire log information related to the vehicle's driving route stored in the vehicle's infotainment system. The log information includes geographical location information, signal strength value information, connection status information, network status information, and collection timestamps collected by the vehicle's emergency call module and communication unit. The log information parsing module is configured to perform text parsing on the log information and associate the geographical location information with the signal strength value information, the connection status information, and the network status information based on the collection timestamp. The information deduplication module is configured to identify geographical location information that records the same geographical location information more than a predefined number of records and / or geographical location information whose deviation exceeds a predefined accuracy threshold as reasonable geographical location information, and save the reasonable geographical location information. The route display module is configured to display the vehicle's driving route on a map based on the reasonable geographical location information associated with the vehicle's driving route. A signal display instruction receiving module is configured to receive signal display instructions via a human-machine interface, wherein the signal display instructions include a vehicle driving route identifier; The signal display module is configured to display one or more of the following at a reasonable geographical location on the map, which is related to the vehicle's driving route identifier: a signal strength value, connection status, and network status corresponding to that reasonable geographical location. The filtering instruction receiving module receives a signal strength filtering instruction via a human-machine interface, wherein the signal strength filtering instruction includes a signal strength filtering threshold. The filtering and display module is configured to determine, within a reasonable geographical location related to the vehicle's travel route, a signal strength filtering geographical location corresponding to a signal strength value that meets the signal strength filtering threshold, and to display the signal strength filtering geographical location on the map.

10. A storage medium storing computer-readable instructions that, when executed by a processor, perform the method according to any one of claims 4-8.

Images