IoV network signal diagnosis system, method and vehicle

Abstract

The present disclosure relates to a vehicle network signal diagnosis system, method and vehicle, which can solve the problem that when the network is abnormal, the user cannot use the vehicle network function and mistakenly thinks that the vehicle has a fault, thereby improving the user experience. The system includes: a vehicle terminal and an information display unit; the vehicle terminal is used to obtain the network information of the vehicle's current environment, perform network signal diagnosis on the network information, and send the diagnosis result to the information display unit; the information display unit is used to receive the diagnosis result sent by the vehicle terminal, and display network fault reminder information when the diagnosis result indicates that the vehicle network has a network fault.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle networking, and in particular, to a vehicle networking network signal diagnosis system, method and vehicle. Background Art

[0002] The Internet of Vehicles is an emerging technology that uses information and communication technologies to achieve interconnection within the vehicle, between vehicles, between vehicles and roads, between vehicles and people, and between vehicles and service platforms. For example, vehicles in the Internet of Vehicles system can provide road environment parameters to the Internet of Vehicles background, and then the Internet of Vehicles background provides corresponding services to the vehicles in the Internet of Vehicles system based on these road environment parameters. For another example, users can also send remote control instructions to bound Internet of Vehicles vehicles through mobile terminal applications to achieve interconnection between people and vehicles, etc. However, Internet of Vehicles technology cannot be separated from the support of the network. In the event of an abnormality in the network, users will be unable to use the Internet of Vehicles function and will mistakenly think that the vehicle has malfunctioned. Summary of the invention

[0003] The purpose of the present disclosure is to provide a vehicle networking network signal diagnosis system, method and vehicle to solve the problem that when a network abnormality occurs, the user cannot use the vehicle networking function and may mistakenly think that the vehicle has a malfunction, thereby improving the user experience.

[0004] In order to achieve the above-mentioned object, the first aspect of the present disclosure provides a vehicle network signal diagnosis system, the method comprising:

[0005] Vehicle terminal and information display unit;

[0006] The vehicle-mounted terminal is used to obtain network information of the current environment of the vehicle, perform network signal diagnosis on the network information, and send the diagnosis result to the information display unit;

[0007] The information display unit is used to receive the diagnosis result sent by the vehicle-mounted terminal, and display network failure reminder information when the diagnosis result indicates that a network failure occurs in the vehicle network.

[0008] Optionally, the information display unit includes a mobile terminal and / or a vehicle-mounted display.

[0009] Optionally, the diagnosis result includes the network information and a fault indication;

[0010] The information display unit is used to display the network information and the network fault reminder information when the fault indication indicates that a network fault has occurred in the connected vehicle network; and to display the network information when the fault indication indicates that no network fault has occurred in the connected vehicle network.

[0011] Optionally, the system further includes a remote background, which is used to send a wake-up instruction to the vehicle-mounted terminal, and the wake-up instruction is used to wake up the vehicle-mounted terminal; the vehicle-mounted terminal is also used to upload the network information to the remote background.

[0012] A second aspect of the present disclosure further provides a vehicle networking network signal diagnosis method, the method being applied to the vehicle networking network signal diagnosis system in the first aspect, the method comprising:

[0013] The vehicle-mounted terminal obtains network information of the vehicle's current environment;

[0014] The vehicle terminal performs network signal diagnosis according to the network information and preset network abnormality conditions;

[0015] When the diagnosis result of the network signal diagnosis indicates that the network information meets the preset network abnormality condition, the vehicle-mounted terminal sends the diagnosis result to the information display unit.

[0016] Optionally, the network information includes a signal strength and a signal-to-noise ratio of a currently occupied cell and a signal strength of an adjacent cell, and the preset network abnormality condition includes at least one or more of the following conditions:

[0017] The signal strength of the currently occupied cell is lower than a preset first signal strength;

[0018] The signal-to-noise ratio of the currently occupied cell is less than zero;

[0019] The signal strength of the currently occupied cell is lower than a preset second signal strength, lower than the signal strength of the adjacent cell and lasts for a duration greater than a preset duration, wherein the second signal strength is higher than the first signal strength.

[0020] Optionally, the method further comprises:

[0021] When receiving the diagnosis result, the information display unit stores the diagnosis result; and when receiving a first query instruction, it queries the target diagnosis result used to respond to the first query instruction from the historically stored diagnosis results and displays the target diagnosis result.

[0022] Optionally, the system further includes a remote background, and before the vehicle-mounted terminal obtains network information of the current environment of the vehicle, the method further includes:

[0023] The remote background sends a wake-up instruction to the vehicle terminal;

[0024] The vehicle-mounted terminal enters a wake-up state in response to the wake-up instruction;

[0025] The method further includes: the vehicle-mounted terminal sending the network information to the remote background.

[0026] Optionally, the method further comprises:

[0027] After receiving the network information, the remote background stores the network information;

[0028] When the remote background receives the second query instruction, it queries the target network information for responding to the second query instruction from the historically stored network information, and returns the target network information.

[0029] The third aspect of the present disclosure also provides a vehicle, comprising an on-board terminal in the vehicle networking network signal diagnostic system described in any one of the first aspects, and an on-board display, wherein the on-board display is used as an information display unit in the vehicle networking network signal diagnostic system described in any one of the first aspects.

[0030] Through the above technical solution, at least the following technical effects can be achieved:

[0031] The vehicle terminal of the vehicle network signal diagnosis system obtains the network information of the vehicle's current environment, and the vehicle terminal performs network signal diagnosis on the network information and sends the diagnosis result to the information display unit. The diagnosis result sent by the vehicle terminal is received by the information display unit of the vehicle network signal diagnosis system. When the diagnosis result indicates that the vehicle network has a network failure, the information display unit displays the network failure reminder information. Through this system, when a network failure occurs in the vehicle network, the network failure reminder information is sent to the user, which avoids the problem that the user cannot use the vehicle network function and mistakenly thinks that the vehicle has a failure, thereby improving the user experience.

[0032] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0034] Figure 1 It is a schematic diagram of a vehicle networking network signal diagnosis system provided by an embodiment of the present disclosure;

[0035] Figure 2 is a schematic diagram of relevant parameters of a vehicle-mounted terminal provided by an embodiment of the present disclosure;

[0036] Figure 3 It is a flowchart of a vehicle networking network signal diagnosis method provided by an embodiment of the present disclosure;

[0037] Figure 4 It is a flowchart of another vehicle networking network signal diagnosis method provided by an embodiment of the present disclosure;

[0038] Figure 5 It is a block diagram of a vehicle provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0040] It should be understood that the various steps described in the method implementation of the present disclosure may be performed in different orders and / or in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect. The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below.

[0041] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units. In addition, the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0042] At present, the Internet of Vehicles uses the new generation of information and communication technology to achieve all-round network connections between vehicles and cloud platforms, vehicles and vehicles, vehicles and roads, vehicles and people, and vehicles. It mainly realizes the "three-network integration", that is, the integration of the in-vehicle network, the inter-vehicle network and the in-vehicle mobile Internet. The Internet of Vehicles uses sensor technology to perceive the status information of the vehicle, and uses wireless communication networks and modern intelligent information processing technology to achieve intelligent management of traffic, intelligent decision-making of traffic information services and intelligent control of vehicles. It can be seen that the Internet of Vehicles technology cannot be separated from the support of the network. In the case of network anomalies, users cannot use the Internet of Vehicles function and usually mistakenly think that the vehicle has a fault, so they check the vehicle for faults, which wastes time and reduces the user experience.

[0043] In view of this, the present disclosure provides a vehicle networking network signal diagnosis system, method and vehicle to solve the problem that when a network abnormality occurs, the user cannot use the vehicle networking function and may mistakenly think that the vehicle has a malfunction, thereby improving the user experience.

[0044] Figure 1 FIG. 1 is a block diagram of a vehicle network signal diagnosis system according to an exemplary embodiment. Figure 1 As shown, the vehicle network signal diagnosis system 100 includes a vehicle terminal 101 and an information display unit 102. The vehicle terminal 101 is used to obtain network information of the current environment of the vehicle, perform network signal diagnosis on the network information, and send the diagnosis result to the information display unit; the information display unit 102 is used to receive the diagnosis result sent by the vehicle terminal, and display network fault reminder information when the diagnosis result indicates that a network fault occurs in the vehicle network.

[0045] For example, the vehicle terminal 101 may be a vehicle-mounted T-BOX (Telematics BOX) on a vehicle, and its parameters are as follows: Figure 2 As shown in the T-BOX related parameters, the information display unit 102 can be a navigation host system (HUT) on the vehicle. In addition, the vehicle terminal 101 can not only obtain the current network information of the vehicle, but also obtain vehicle condition information such as vehicle driving data collection and driving trajectory records. Among them, the obtained network information is as follows: Figure 2 The network information in the figure includes the signal received power (RSRP), signal-to-noise ratio (SINR), signal received strength (RSSI), signal received quality (RSRQ) and neighboring cell information of the currently occupied cell.

[0046] With the above system, the vehicle terminal of the system obtains the network information of the current environment of the vehicle, performs network signal diagnosis on the network information and sends the diagnosis result to the information display unit, and receives the diagnosis result sent by the vehicle terminal through the information display unit of the system. When the diagnosis result indicates that the Internet of Vehicles has a network failure, the information display unit displays the network failure reminder information. Through this system, when a network failure occurs in the Internet of Vehicles, the network failure reminder information is sent to the user, which avoids the problem that the user cannot use the Internet of Vehicles function and mistakenly thinks that the vehicle has a failure, thereby improving the user experience.

[0047] In a possible implementation, the diagnostic result includes the network information and a fault indication, and the information display unit is used to display the network information and the network fault reminder information when the fault indication indicates that a network fault has occurred in the vehicle network; and to display the network information when the fault indication indicates that no network fault has occurred in the vehicle network.

[0048] Optionally, the information display unit of the vehicle network signal diagnosis system includes a mobile terminal and / or a vehicle display, wherein the mobile terminal is bound with the vehicle through an application program to achieve intercommunication and interconnection, and monitor and control the vehicle.

[0049] For example, when the current network environment of the vehicle is abnormal, the vehicle terminal performs network signal diagnosis on the acquired network information, and sends the diagnosis result to the mobile terminal and / or the vehicle display, displaying "Owner, the current mobile communication network signal is detected to be poor" to remind the user that the vehicle network has a network failure. In addition, voice prompts can be added to remind users more intuitively. Among them, users can customize the reminder method, set text prompts and voice prompts, or choose between text prompts and voice prompts, and turn on or off the reminder function of the mobile terminal to meet the usage needs of different users.

[0050] In a possible implementation, the Internet of Vehicles network signal diagnostic system also includes a remote background, which is used to send a wake-up instruction to the vehicle terminal, and the wake-up instruction is used to wake up the vehicle terminal; the vehicle terminal is also used to upload the network information to the remote background.

[0051] For example, after the vehicle is powered on, the on-board terminal will automatically start and access the mobile communication network, obtain network information of the vehicle's current environment in real time, and upload the network information to the remote background until the vehicle is powered off and the on-board terminal enters a sleep state.

[0052] Alternatively, when the vehicle terminal is in a dormant state after the vehicle is powered off, the remote background sends a wake-up command to the vehicle terminal. After the vehicle terminal is awakened by the wake-up command, it obtains network information of the vehicle's current environment in real time and uploads the network information to the remote background.

[0053] Specifically, the backstage personnel can log in to the remote backstage, enter the vehicle identification code (VIN code) corresponding to the target vehicle in the operation interface of the remote backstage to query the target vehicle, or can also enter Figure 2The integrated circuit card identification code (ICCID), mobile user identification code (IMSI), and mobile equipment identification code (IMEI) in the T-BOX related parameters shown in the figure query the target vehicle. After querying the target vehicle, click the wake-up button to send a wake-up command to the vehicle terminal of the target vehicle, so that the vehicle terminal starts and accesses the mobile communication network, obtains the network information of the current environment of the target vehicle, and uploads the network information to the remote background, which stores the received network information. In addition, the wake-up time can be set to limit the wake-up time of the vehicle terminal to avoid the vehicle terminal being in the startup state all the time, causing a waste of power for the vehicle terminal. In addition, the background personnel can query historical network information and current network information by setting the time period, which is convenient for vehicle maintenance personnel to timely combine network information and fault phenomena to locate the cause of the fault.

[0054] It should be understood that in the actual use of the vehicle network signal diagnosis system, since the network environment of the vehicle during driving is not static, it is a real-time and dynamic process for the vehicle terminal to obtain network information and perform network signal diagnosis. In addition, a diagnosis cycle can be set, such as obtaining network information, network signal diagnosis and uploading network information once every 10 minutes. In this way, it is not only possible to perceive changes in network signals in a timely manner, but also to avoid frequent operations causing waste of vehicle power. And set a reminder cycle, such as re-obtaining network information and performing network signal diagnosis every 5 minutes. Among them, the duration of the diagnosis cycle and the reminder cycle is only used as an example, and the comparison of this disclosure is not specifically limited. It is worth noting that the duration of the reminder cycle is shorter than the duration of the diagnosis cycle, so that when a network failure occurs in the vehicle network and a fault reminder is triggered, the network information can be obtained faster, so as to promptly notify the user of abnormal network status or changes in network status.

[0055] Based on the same inventive concept, the present disclosure also provides a vehicle networking network signal diagnosis method, which is applied to the above vehicle networking network signal diagnosis system, such as Figure 3 As shown, the method includes:

[0056] S301. The vehicle-mounted terminal obtains network information of the vehicle's current environment.

[0057] The network information includes the signal strength and signal-to-noise ratio of the currently occupied cell and the signal strength of the adjacent cells. Figure 2 As shown in the network information, the received signal power (RSRP) can be used to represent the signal strength.

[0058] S302: The vehicle-mounted terminal performs network signal diagnosis based on the network information and preset network abnormality conditions.

[0059] Optionally, the preset network abnormality condition includes at least one or more of the following conditions: the signal strength of the currently occupied cell is lower than a preset first signal strength, the signal-to-noise ratio of the currently occupied cell is less than zero, and the signal strength of the currently occupied cell is lower than a preset second signal strength, lower than the signal strength of the adjacent cell and lasts for a duration greater than a preset duration. The second signal strength is higher than the first signal strength.

[0060] S303: When the diagnosis result of the network signal diagnosis indicates that the network information meets the preset network abnormality condition, the vehicle terminal sends the diagnosis result to the information display unit.

[0061] For example, under any one or more of the following conditions, it is determined that the network information meets the preset network abnormality condition: the signal strength of the currently occupied cell, that is, the signal receiving power in the acquired network information is lower than -110dbm, the signal-to-noise ratio is less than 0, and the signal strength of the currently occupied cell is lower than -85dbm, 10dB weaker than the neighboring cell and the duration is greater than 5s. The above specific values ​​are only for example, and the present disclosure does not specifically limit this.

[0062] By adopting the above method, the vehicle terminal of the vehicle network signal diagnosis system obtains the network information of the vehicle's current environment, and performs network signal diagnosis based on the network information and the preset network abnormality conditions, and sends the diagnosis result to the information display unit when the diagnosis result of the network signal diagnosis indicates that the network information meets the preset network abnormality conditions. By using this method, when a network failure occurs in the vehicle network, a network failure reminder message is sent to the user, avoiding the problem that the user cannot use the vehicle network function and mistakenly thinks that the vehicle has a failure, thereby improving the user experience.

[0063] In one possible implementation, when the information display unit receives the diagnostic result, it stores the diagnostic result, and when receiving a first query instruction, it queries the target diagnostic result used to respond to the first query instruction from the historically stored diagnostic results, and displays the target diagnostic result.

[0064] For example, on the operation interface of the information display unit, all historically stored diagnostic results can be queried, and a time period can be set to query the target diagnostic results of the target time period. In addition, the historical network information stored in the vehicle terminal can also be queried. This makes it convenient for vehicle maintenance personnel to locate the cause of the vehicle network failure by combining network information, diagnostic results and vehicle failure phenomena.

[0065] In a possible implementation, the vehicle network signal diagnosis system further includes a remote background, and before the vehicle terminal obtains the network information of the current environment of the vehicle, the remote background sends a wake-up instruction to the vehicle terminal, and the vehicle terminal enters a wake-up state in response to the wake-up instruction. In addition, the vehicle terminal sends the network information to the remote background.

[0066] Optionally, after receiving the network information, the remote background stores the network information. When receiving the second query instruction, the remote background queries the target network information for responding to the second query instruction from the historically stored network information, and returns the target network information.

[0067] For example, after the vehicle is powered on, the on-board terminal will automatically start and access the mobile communication network, obtain network information of the vehicle's current environment in real time, and upload the network information to the remote background until the vehicle is powered off and the on-board terminal enters a sleep state.

[0068] Alternatively, when the vehicle terminal is in a dormant state after the vehicle is powered off, the remote background sends a wake-up command to the vehicle terminal. After the vehicle terminal is awakened by the wake-up command, it obtains network information of the vehicle's current environment in real time and uploads the network information to the remote background.

[0069] It is worth noting that when the vehicle is powered on, the remote background query shows that the vehicle is online, and the operation interface of the remote background can directly query the historical network information and the current network information. When the vehicle is powered off, the remote background query shows that the vehicle is offline, and the operation interface of the remote background can only query the historical network information, and the vehicle terminal needs to be woken up to query the current network information.

[0070] In order to make it easier for those skilled in the art to understand the method provided by the embodiment of the present disclosure, the steps of the vehicle networking network signal diagnosis method provided by the embodiment of the present disclosure are described in detail below in conjunction with the vehicle networking network signal diagnosis system. Figure 4 As shown, the method includes:

[0071] S401, the vehicle is powered on, the vehicle terminal automatically starts, and accesses the mobile communication network to communicate with the remote background.

[0072] S402: The vehicle terminal obtains the current network information of the vehicle and uploads it to the remote background.

[0073] S403: The vehicle-mounted terminal performs network signal diagnosis based on the network information and preset network abnormality conditions to determine whether the current network is abnormal.

[0074] Furthermore, in the case that an abnormality occurs in the current network, step S404 is executed, otherwise step S402 is continued to be executed after the first predetermined time period.

[0075] S404: The vehicle-mounted terminal sends the diagnosis result to the information display unit.

[0076] S405: The information display unit displays the diagnosis result.

[0077] Further, step S402 is continued to be executed after a second predetermined time period, wherein the second predetermined time period is shorter than the first predetermined time period.

[0078] It is worth mentioning that after the vehicle is powered off, the on-board terminal will also enter a sleep state, thus ending all the above steps.

[0079] With the above method, after the vehicle is powered on, the on-board terminal automatically starts and connects to the mobile communication network to communicate with the remote background, obtains the network information of the vehicle's current environment in real time, and performs network signal diagnosis based on the network information and preset network abnormality conditions, and sends the diagnosis result to the information display unit when the diagnosis result of the network signal diagnosis indicates that the current network is abnormal, prompting the user that the vehicle's current network is abnormal. With this method, in the event of a network failure in the Internet of Vehicles, a network failure reminder message is sent to the user, avoiding the problem that the user cannot use the Internet of Vehicles function and mistakenly thinks that the vehicle has a fault, thereby improving the user experience.

[0080] Based on the same inventive concept, the present disclosure also provides a vehicle 500, the vehicle 500 comprising the above Figure 1 The vehicle terminal 101 in the vehicle network signal diagnosis system of the vehicle network, and the vehicle display 501, the vehicle display 501 is used as an information display unit in the vehicle network signal diagnosis system. The vehicle terminal 101 is used to obtain the network information of the current environment of the vehicle, perform network signal diagnosis on the network information, and send the diagnosis result to the vehicle display 501; the vehicle display 501 is used to receive the diagnosis result sent by the vehicle terminal, and display the network fault reminder information when the diagnosis result indicates that the vehicle network has a network fault.

[0081] Regarding the vehicle in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0082] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle network signal diagnosis system, characterized in that: The system comprises: Vehicle terminal and information display unit; The vehicle terminal is used to obtain network information of the current environment of the vehicle, and perform network signal diagnosis according to the network information and the preset network abnormality condition, and send the diagnosis result to the information display unit, wherein the network information includes the signal strength, signal-to-noise ratio and signal strength of the currently occupied cell and the adjacent cell, and the preset network abnormality condition includes at least the following conditions: the signal strength of the currently occupied cell is lower than the preset second signal strength, lower than the signal strength of the adjacent cell and the duration is greater than the preset duration, wherein the second signal strength is higher than the preset first signal strength; The information display unit is used to receive the diagnosis result sent by the vehicle-mounted terminal, and display network failure reminder information when the diagnosis result indicates that a network failure occurs in the vehicle network.

2. The vehicle network signal diagnosis system according to claim 1, characterized in that: The information display unit includes a mobile terminal and / or a vehicle-mounted display.

3. The vehicle networking network signal diagnosis system according to claim 1, characterized in that: The diagnostic result includes the network information and a fault indication; The information display unit is used to display the network information and the network fault reminder information when the fault indication indicates that a network fault occurs in the connected vehicle network; When the fault indication indicates that no network fault occurs in the connected vehicle network, the network information is displayed.

4. The vehicle networking network signal diagnosis system according to claim 1, characterized in that: The system also includes a remote background, which is used to send a wake-up instruction to the vehicle-mounted terminal, and the wake-up instruction is used to wake up the vehicle-mounted terminal; the vehicle-mounted terminal is also used to upload the network information to the remote background.

5. A vehicle network signal diagnosis method, characterized in that: The method is applied to the vehicle networking network signal diagnosis system according to claim 1, and the method comprises: The vehicle-mounted terminal obtains network information of the vehicle's current environment; The vehicle terminal performs network signal diagnosis according to the network information and the preset network abnormality condition, wherein the network information includes the signal strength, signal-to-noise ratio and signal strength of the currently occupied cell and the adjacent cell, and the preset network abnormality condition includes at least the following conditions: the signal strength of the currently occupied cell is lower than a preset second signal strength, lower than the signal strength of the adjacent cell and lasts for a duration greater than a preset duration, wherein the second signal strength is higher than the preset first signal strength; When the diagnosis result of the network signal diagnosis indicates that the network information meets the preset network abnormality condition, the vehicle-mounted terminal sends the diagnosis result to the information display unit.

6. The method according to claim 5, characterized in that The method further comprises: When receiving the diagnosis result, the information display unit stores the diagnosis result; and when receiving a first query instruction, it queries the target diagnosis result used to respond to the first query instruction from the historically stored diagnosis results and displays the target diagnosis result.

7. The method according to claim 5, characterized in that The system further includes a remote background, and before the vehicle-mounted terminal obtains network information of the current environment of the vehicle, the method further includes: The remote background sends a wake-up instruction to the vehicle terminal; The vehicle-mounted terminal enters a wake-up state in response to the wake-up instruction; The method further includes: the vehicle-mounted terminal sending the network information to the remote background.

8. The method according to claim 7, characterized in that The method further comprises: After receiving the network information, the remote background stores the network information; When the remote background receives the second query instruction, it queries the target network information for responding to the second query instruction from the historically stored network information, and returns the target network information.

9. A vehicle, characterized in that: The vehicle includes an on-board terminal in the vehicle networking network signal diagnostic system according to any one of claims 1-4, and an on-board display, wherein the on-board display is used as an information display unit in the vehicle networking network signal diagnostic system according to any one of claims 1-4.

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