Vehicle state detection method and device and vehicle

Abstract

The invention provides a vehicle state detection method and device and a vehicle. The method comprises the steps that self-diagnosis information of the vehicle is obtained, a corresponding vehicle type is matched according to a vehicle selection instruction, and corresponding vehicle standard parameter information is configured according to the vehicle type; comparing the self-diagnosis information with vehicle standard parameter information to obtain a state detection result of the vehicle; and performing remote wireless communication transmission on the self-diagnosis information and the state detection result of the vehicle according to a preset communication mode. When the vehicle is diagnosed and detected in a place which cannot be covered by an operator network, the remote calibration and diagnosis detection of the vehicle can be realized through remote wireless communication transmission of the diagnosis information in other wireless communication modes, and the problem that related detection technologies must depend on the operator network coverage is solved. And meanwhile, the transmitted information is encrypted, so that the data transmission quantity can be reduced, and the security and privacy protection of data transmission can be improved at the same time.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle state detection method and device, and a vehicle. Background Art

[0002] When a vehicle is driving, its parts may become worn and aged. Vehicle fault diagnosis can detect these potential problems in a timely manner, and repairs or replacements can be performed in advance to avoid accidents while the vehicle is driving.

[0003] In the related technologies, vehicle fault diagnosis includes offline diagnosis and remote diagnosis, but the related technologies need to rely on the operator's network coverage for remote diagnosis, and cannot be performed in places where the operator's network is not covered. At the same time, when the related technologies perform remote diagnosis, they lack diagnostic accuracy and real-time performance, and cannot meet the diagnostic needs of modern cars. Moreover, when the related technologies perform remote diagnosis, they cannot ensure the security and privacy protection of data transmission. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a vehicle state detection method and device, and a vehicle, for solving the technical problems existing in the prior art.

[0005] To achieve the above objectives and other related objectives, the present application provides a vehicle status detection method, comprising the following steps:

[0006] Acquiring self-diagnosis information of the vehicle; wherein the self-diagnosis information is obtained by a diagnostic system pre-configured for the vehicle;

[0007] Responding to an externally input vehicle selection instruction, matching a corresponding vehicle type according to the vehicle selection instruction, and configuring corresponding vehicle standard parameter information according to the vehicle type;

[0008] Comparing the self-diagnosis information with the vehicle standard parameter information to obtain a state detection result of the vehicle;

[0009] The self-diagnosis information and the vehicle status detection result are transmitted via remote wireless communication according to a preset communication method; wherein the preset communication method includes Bluetooth communication and / or WIFI communication.

[0010] In one embodiment of the present application, the method further includes:

[0011] Performing voltage drift detection and current drift detection on the detection device according to the vehicle type, and associating the voltage drift detection result and the current drift detection result as the sensor detection result of the detection device; and,

[0012] performing communication signal strength detection and packet loss rate detection on the detection device according to the vehicle type, and associating the communication signal strength detection result and the packet loss rate detection result as the communication connection state detection result of the detection device; and,

[0013] Performing power fluctuation threshold detection on the detection device according to the vehicle type, and using the power fluctuation threshold detection result as the power stability detection result of the detection device;

[0014] The sensor detection result, the communication connection status detection result and the power supply stability detection result are combined as the hardware detection result of the detection device; wherein the detection device is connected to the vehicle for performing vehicle status detection.

[0015] In one embodiment of the present application, the method further includes:

[0016] Performing communication baud rate detection and communication protocol detection on the detection device according to the vehicle type; and performing redundancy check detection on the detection device during data transmission; and performing heartbeat packet sending and receiving verification detection on the detection device during data transmission;

[0017] The communication baud rate detection result, the communication protocol detection result, the redundancy check detection result and the heartbeat packet receiving and sending verification detection result are combined as the software detection result of the detection device; wherein the detection device is connected to the vehicle for vehicle status detection.

[0018] In one embodiment of the present application, the method further includes: determining whether a sensor in the detection device has an accuracy deviation according to the voltage drift detection result and / or the current drift detection result;

[0019] If the voltage drift detection result is that voltage drift occurs, and / or the current drift detection result is that current drift occurs, it is determined that there is an accuracy deviation in the sensor in the detection device, and a preset correction curve is called to perform accuracy correction on the sensor in the detection device.

[0020] In one embodiment of the present application, if the vehicle status detection result is that the vehicle is abnormal, the method further includes:

[0021] Entering the first abnormal level, the log records on the vehicle side are synchronized to the cloud database;

[0022] Alternatively, the second abnormal level is entered, and an alarm message is pushed through the mobile communication network;

[0023] Alternatively, entering the third abnormal level, controlling the vehicle to enter a safety mode, limiting the power output of the vehicle, and initiating a remote diagnosis request;

[0024] The first abnormality level, the second abnormality level and the third abnormality level are determined according to the abnormality degree of the vehicle, and the abnormality degree corresponding to the first abnormality level is smaller than that of the second abnormality level, and the abnormality degree corresponding to the second abnormality level is smaller than that of the third abnormality level.

[0025] In one embodiment of the present application, the method further includes: encrypting the self-diagnosis information, the software detection result of the detection device, and the state detection result of the vehicle to obtain a first encryption result; or encrypting the self-diagnosis information, the hardware detection result of the detection device, the software detection result of the detection device, and the state detection result of the vehicle to obtain a second encryption result;

[0026] The first encryption result or the second encryption result is transmitted via remote wireless communication according to a preset communication method.

[0027] The present application also provides a vehicle state detection device, the detection device comprising:

[0028] A communication interface, used to establish a communication connection with a vehicle and obtain self-diagnosis information of the vehicle; wherein the self-diagnosis information is obtained by a diagnostic system pre-configured for the vehicle;

[0029] A configuration module, used to match a corresponding vehicle type according to a vehicle selection instruction, and configure corresponding vehicle standard parameter information according to the vehicle type; wherein the vehicle selection instruction is inputted externally;

[0030] A first detection module, used for comparing the self-diagnosis information with the vehicle standard parameter information to obtain a state detection result of the vehicle;

[0031] The communication module is used to perform remote wireless communication transmission of the self-diagnosis information and the vehicle status detection result according to a preset communication method; wherein the preset communication method includes Bluetooth communication and / or WIFI communication.

[0032] In one embodiment of the present application, the detection device also includes a second detection module, which is used to perform voltage drift detection and current drift detection on the detection device according to the vehicle type, and associate the voltage drift detection result with the current drift detection result as the sensor detection result of the detection device; and, perform communication signal strength detection and packet loss rate detection on the detection device according to the vehicle type, and associate the communication signal strength detection result with the packet loss rate detection result as the communication connection status detection result of the detection device; and, perform power supply fluctuation threshold detection on the detection device according to the vehicle type, and use the power supply fluctuation threshold detection result as the power supply stability detection result of the detection device; and combine the sensor detection result, the communication connection status detection result and the power supply stability detection result as the hardware detection result of the detection device.

[0033] In one embodiment of the present application, the detection device also includes a third detection module, which is used to perform communication baud rate detection and communication protocol detection on the detection device according to the vehicle type; and, perform redundancy check detection on the detection device during data transmission; and, perform heartbeat packet sending and receiving verification detection on the detection device during data transmission; and combine the communication baud rate detection results, communication protocol detection results, redundancy check detection results and heartbeat packet sending and receiving verification detection results as the software detection results of the detection device.

[0034] The present application also provides a vehicle, wherein the vehicle is applied to any of the vehicle state detection methods described above, or the vehicle is applied to any of the vehicle state detection devices described above.

[0035] As described above, the present application provides a vehicle status detection method and device, and a vehicle, which has the following beneficial effects: when performing vehicle diagnosis and detection in places where the operator network is not covered, the present application can transmit diagnostic information through other wireless communication methods to remotely wirelessly transmit diagnostic information, realize remote calibration and diagnostic detection of the vehicle, and solve the problem that the relevant detection technology must rely on the operator network coverage. At the same time, the present application can reduce the probability of abnormal state of the detection equipment by performing multiple detections on the detection equipment, avoid inaccurate vehicle calibration and detection caused by abnormalities or errors in the detection equipment, thereby solving the problem of insufficient accuracy of the relevant technology in vehicle diagnosis and detection. Moreover, the present application establishes wireless communication between the detection equipment and the detection result receiving terminal, and after obtaining the vehicle status detection result, the vehicle status detection result can be fed back to the detection result receiving terminal in real time, thereby improving the real-time performance of remote diagnosis and detection of the vehicle, meeting the diagnostic detection needs of modern automobiles, and solving the lack of real-time detection of relevant detection technologies. In addition, the present application encrypts the vehicle's self-diagnosis information, the detection results of the detection equipment and the vehicle's status detection results, and transmits the encrypted results to the detection result receiving terminal via remote wireless communication. This not only encrypts the transmitted information, but also, because the amount of data after encryption is smaller than that before encryption, the present application can reduce the amount of data transmission while improving the security and privacy protection of data transmission, thereby solving the technical problem that related detection technologies cannot ensure security and privacy protection during data transmission due to the large amount of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A flow chart of a vehicle status detection method provided in an embodiment of the present application;

[0037] Figure 2 A schematic diagram of the hardware structure of a vehicle state detection device provided in an embodiment of the present application;

[0038] Figure 3 A schematic diagram of a framework of a vehicle state detection device provided in an embodiment of the present application when performing vehicle state detection;

[0039] Figure 4 The figure is a schematic diagram of the hardware structure of a computer device suitable for implementing one or more embodiments of the present application. DETAILED DESCRIPTION

[0040] The following is an explanation of the embodiments of the present application by specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied by other different specific embodiments, and the details in this specification can also be based on different viewpoints and applications, without departing from the spirit of the present application. Various modifications or changes are made. It is understood that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. In addition, it is understood that the illustrations provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only the components related to the present application are shown in the drawings rather than the number, shape and size of the components during the actual implementation. The type, quantity and ratio of each component during its actual implementation can be a random change, and its component layout type may also be more complicated.

[0041] Figure 1 A flow chart of a vehicle state detection method is shown. Specifically, in an exemplary embodiment, Figure 1 As shown, this embodiment provides a vehicle state detection method, which includes the following steps:

[0042] S110, obtaining self-diagnosis information of the vehicle; wherein the self-diagnosis information is obtained by a diagnosis system pre-configured in the vehicle;

[0043] S120, responding to an externally input vehicle selection instruction, matching a corresponding vehicle type according to the vehicle selection instruction, and configuring corresponding vehicle standard parameter information according to the vehicle type;

[0044] S130, comparing the self-diagnosis information with the vehicle standard parameter information to obtain a vehicle status detection result;

[0045] S140, transmitting the self-diagnosis information and the vehicle status detection result by remote wireless communication according to a preset communication method; wherein the preset communication method includes WIFI (Wireless Fidelity, wireless fidelity, abbreviated as WIFI) communication and / or Bluetooth communication.

[0046] In some embodiments of the present application, the self-diagnosis information of the vehicle can be obtained by diagnosing the vehicle through an on-board self-diagnosis system OBD (On-Board Diagnostics, referred to as OBD) pre-configured in the vehicle.

[0047] In some embodiments of the present application, the vehicle selection instruction can be input by an external person in the operation interface of the detection device. The vehicle standard parameter information includes but is not limited to the parameter information used for fault detection of the vehicle, wherein the vehicle standard parameter information corresponding to different vehicle types may be different, so the corresponding vehicle standard parameter information can be configured with reference to the actual situation, and the vehicle standard parameter information is not specifically limited here. As an example, the vehicle standard parameter information includes but is not limited to sensor accuracy, power supply fluctuation threshold, communication signal strength, packet loss rate, engine operating condition, vehicle battery parameters, fault code, etc.

[0048] In some embodiments of the present application, when obtaining the vehicle's self-diagnostic information, the detection equipment can be connected to the vehicle's CAN (Controller Area Network, CAN for short) interface and LIN (Local Interconnect Network, LIN for short) interface, and the vehicle's self-diagnostic information can be obtained through the CAN interface and / or LIN interface.

[0049] In some embodiments of the present application, self-diagnostic information and vehicle status detection results can be transmitted to a detection result receiving terminal via remote wireless communication in accordance with a preset communication method, wherein the detection result receiving terminal can be a mobile terminal device or a remote terminal device that can be accessed, monitored and controlled through a remote network connection, etc. The mobile terminal device includes but is not limited to mobile phones, tablet computers, etc.

[0050] In an exemplary embodiment of the present application, the vehicle state detection method can also use the detection device to perform hardware detection on itself, specifically including: performing voltage drift detection and current drift detection on the detection device according to the vehicle type, and associating the voltage drift detection result and the current drift detection result as the sensor detection result of the detection device; and performing communication signal strength detection and packet loss rate detection on the detection device according to the vehicle type, and associating the communication signal strength detection result and the packet loss rate detection result as the communication connection state detection result of the detection device; and performing power supply fluctuation threshold detection on the detection device according to the vehicle type, and using the power supply fluctuation threshold detection result as the power supply stability detection result of the detection device; combining the sensor detection result, the communication connection state detection result and the power supply stability detection result as the hardware detection result of the detection device; wherein the detection device is connected to the vehicle and is also used to perform vehicle state detection. At the same time, the process of using the detection device to detect itself can also be called the detection device self-test.

[0051] In an exemplary embodiment of the present application, the vehicle status detection method can also use the detection device to perform software detection on itself, specifically including: performing communication baud rate detection and communication protocol detection on the detection device according to the vehicle type; and performing redundancy check detection on the detection device during data transmission; and performing heartbeat packet transceiver verification detection on the detection device during data transmission; combining the communication baud rate detection result, the communication protocol detection result, the redundancy check detection result and the heartbeat packet transceiver verification detection result as the software detection result of the detection device. As an example, when performing redundancy check detection on the detection device during data transmission, a redundancy check algorithm can be used to perform redundancy check detection to verify the logical integrity of data acquisition. As another example, before performing communication baud rate detection and communication protocol detection on the detection device according to the vehicle type, the communication baud rate and communication protocol configuration of the detection device can also be performed according to the vehicle type, for example, the communication baud rate is set to 125Kbps, and the communication protocol adopts the ISO15765-2 standard.

[0052] In an exemplary embodiment of the present application, the vehicle state detection method may further include: determining whether the sensor in the detection device has an accuracy deviation according to the voltage drift detection result and / or the current drift detection result; if the voltage drift detection result is that voltage drift occurs, and / or the current drift detection result is that current drift occurs, then determining that the sensor in the detection device has an accuracy deviation, and calling a preset correction curve to perform accuracy correction on the sensor in the detection device; if the voltage drift detection result is that voltage drift does not occur, and the current drift detection result is that current drift does not occur, then determining that the sensor in the detection device does not have an accuracy deviation. When the sensor in the detection device does not have an accuracy deviation, the detection result obtained by the detection device at this time has no error.

[0053] In an exemplary embodiment of the present application, if the state detection result of the vehicle is that the vehicle is abnormal, the vehicle state detection method may further include: entering the first abnormal level, synchronizing the log record located at the vehicle end to the cloud database. Alternatively, entering the second abnormal level, pushing an alarm message to the detection result receiving terminal through the mobile communication network. Alternatively, entering the third abnormal level, controlling the vehicle to enter a safe mode, limiting the power output of the vehicle, and initiating a remote diagnosis request. Among them, the first abnormal level, the second abnormal level, and the third abnormal level are determined according to the abnormal degree of the vehicle, and the abnormal degree corresponding to the first abnormal level is less than the second abnormal level, and the abnormal degree corresponding to the second abnormal level is less than the third abnormal level. Among them, the first abnormal level may correspond to a slight abnormality in the vehicle, the second abnormal level may correspond to a moderate abnormality in the vehicle, and the third abnormal level may correspond to a severe abnormality in the vehicle. As an example, entering the first abnormal level, the log record located at the vehicle end is synchronized to the cloud database through a 5G / 4G operator network. As another example, entering the second abnormal level, pushing an alarm message to a mobile terminal through a 5G / 4G operator network.

[0054] In some embodiments of the present application, the vehicle status detection method may also include: encrypting the self-diagnosis information, the software detection results of the detection device, and the status detection results of the vehicle to obtain a first encryption result; or encrypting the self-diagnosis information, the hardware detection results of the detection device, the software detection results of the detection device, and the status detection results of the vehicle to obtain a second encryption result; and transmitting the first encryption result or the second encryption result by remote wireless communication according to a preset communication method. Specifically, as an example, for example, the self-diagnosis information, the software detection results of the detection device, and the status detection results of the vehicle can be encrypted to obtain a first encryption result; and the first encryption result is remotely wirelessly transmitted to the abbreviated result receiving terminal through WIFI communication and / or Bluetooth communication. As another example, for example, the self-diagnosis information, the hardware detection results of the detection device, the software detection results of the detection device, and the status detection results of the vehicle can be encrypted to obtain a second encryption result; and the second encryption result is remotely wirelessly transmitted to the abbreviated result receiving terminal through WIFI communication and / or Bluetooth communication. Therefore, in areas where the operator's network is not covered, the encrypted results can be transmitted remotely to the test result receiving terminal through WIFI communication and / or Bluetooth communication, which can also realize remote calibration and diagnostic testing of the vehicle, solving the problem that related detection technologies must rely on operator network coverage.

[0055] In summary, the present application provides a vehicle status detection method. When performing vehicle diagnostic testing in places where the operator network cannot cover, the present method can transmit diagnostic information through other wireless communication methods to remotely wirelessly transmit diagnostic information, thereby realizing remote calibration and diagnostic testing of the vehicle, and solving the problem that related detection technologies must rely on the coverage of the operator network. At the same time, the present method can reduce the probability of abnormalities in the state of the detection equipment by performing multiple tests on the detection equipment, and avoid inaccurate vehicle calibration and detection caused by abnormalities or errors in the detection equipment, thereby solving the problem of insufficient accuracy of related technologies in vehicle diagnostic testing. Moreover, the present method establishes wireless communication between the detection equipment and the detection result receiving terminal, and after obtaining the vehicle status detection result, the vehicle status detection result can be fed back to the detection result receiving terminal in real time, thereby improving the real-time performance of remote diagnosis and testing of the vehicle, meeting the diagnostic testing needs of modern automobiles, and solving the lack of real-time detection of related detection technologies. In addition, the method encrypts the vehicle's self-diagnosis information, the detection results of the detection equipment and the vehicle's status detection results, and transmits the encrypted results to the detection result receiving terminal via remote wireless communication. Not only can the transmitted information be encrypted, but also because the amount of information after encryption is smaller than that before encryption, the method can reduce the amount of data transmission while improving the security and privacy protection of data transmission, thereby solving the technical problem that related detection technologies cannot ensure security and privacy protection during data transmission due to the large amount of data transmission.

[0056] In another exemplary embodiment of the present application, Figure 2 As shown, this embodiment also provides a vehicle state detection device, which includes:

[0057] The communication interface 210 is used to establish a communication connection with the vehicle and obtain the self-diagnosis information of the vehicle; wherein the self-diagnosis information is obtained by a diagnostic system pre-configured in the vehicle;

[0058] The configuration module 220 is used to match the corresponding vehicle type according to the vehicle selection instruction, and configure the corresponding vehicle standard parameter information according to the vehicle type; wherein the vehicle selection instruction is inputted externally;

[0059] The first detection module 230 is used to compare the self-diagnosis information with the vehicle standard parameter information to obtain the vehicle status detection result;

[0060] The communication module 240 is used to perform remote wireless communication transmission of the self-diagnosis information and the vehicle status detection results according to a preset communication method; wherein the preset communication method includes Bluetooth communication and / or WIFI communication.

[0061] In some embodiments of the present application, the communication interface 210 may include a CAN interface and a LIN interface, so the communication interface 210 may establish a communication connection with the vehicle through the CAN interface and / or the LIN interface to obtain the self-diagnosis information of the vehicle. At the same time, in some embodiments of the present application, the vehicle state detection device may be referred to as a detection device.

[0062] In an exemplary embodiment of the present application, the detection device may also include a second detection module 250, which is used to perform voltage drift detection and current drift detection on the detection device according to the vehicle type, and associate the voltage drift detection result with the current drift detection result as the sensor detection result of the detection device; and, perform communication signal strength detection and packet loss rate detection on the detection device according to the vehicle type, and associate the communication signal strength detection result with the packet loss rate detection result as the communication connection state detection result of the detection device; and, perform power fluctuation threshold detection on the detection device according to the vehicle type, and use the power fluctuation threshold detection result as the power stability detection result of the detection device; combine the sensor detection result, the communication connection state detection result and the power stability detection result as the hardware detection result of the detection device. Among them, the detection process of the second detection module can also be called hardware detection of the detection device.

[0063] In an exemplary embodiment of the present application, the detection device may further include a third detection module 260, which is used to perform communication baud rate detection and communication protocol detection on the detection device according to the vehicle type; and perform redundancy check detection on the detection device during data transmission; and perform heartbeat packet transceiver verification detection on the detection device during data transmission; the communication baud rate detection result, the communication protocol detection result, the redundancy check detection result and the heartbeat packet transceiver verification detection result are combined as the software detection result of the detection device. Among them, the detection process of the third detection module can also be called the software detection of the detection device. As an example, when performing redundancy check detection on the detection device during data transmission, a redundancy check algorithm can be used to perform redundancy check detection to verify the logical integrity of data acquisition. As another example, before performing communication baud rate detection and communication protocol detection on the detection device according to the vehicle type, the communication baud rate and communication protocol configuration of the detection device can also be performed according to the vehicle type, for example, the communication baud rate is set to 125Kbps, and the communication protocol adopts the ISO15765-2 standard.

[0064] In an exemplary embodiment of the present application, the vehicle status detection device may further include: determining whether there is an accuracy deviation in the sensor in the detection device based on the voltage drift detection result and / or the current drift detection result; if the voltage drift detection result is that voltage drift occurs, and / or the current drift detection result is that current drift occurs, then determining that there is an accuracy deviation in the sensor in the detection device, and calling a preset correction curve to perform accuracy correction on the sensor in the detection device; if the voltage drift detection result is that no voltage drift occurs, and the current drift detection result is that no current drift occurs, then determining that there is no accuracy deviation in the sensor in the detection device.

[0065] In an exemplary embodiment of the present application, if the state detection result of the vehicle is that the vehicle is abnormal, the vehicle state detection device may further include: entering the first abnormal level, synchronizing the log record located at the vehicle end to the cloud database. Or, entering the second abnormal level, pushing the alarm information to the detection result receiving terminal through the mobile communication network. Or, entering the third abnormal level, controlling the vehicle to enter the safety mode, limiting the power output of the vehicle, and initiating a remote diagnosis request. Among them, the first abnormal level, the second abnormal level and the third abnormal level are determined according to the abnormal degree of the vehicle, and the abnormal degree corresponding to the first abnormal level is less than the second abnormal level, and the abnormal degree corresponding to the second abnormal level is less than the third abnormal level. Among them, the first abnormal level can correspond to a slight abnormality in the vehicle, the second abnormal level can correspond to a moderate abnormality in the vehicle, and the third abnormal level can correspond to a severe abnormality in the vehicle. As an example, entering the first abnormal level, the log record located at the vehicle end is synchronized to the cloud database through the operator network such as 5G / 4G. As another example, entering the second abnormal level, pushing the alarm information to the mobile terminal through the operator network such as 5G / 4G.

[0066] In some embodiments of the present application, the detection device may further include an encryption module for encrypting the self-diagnosis information, the software detection result of the detection device, and the status detection result of the vehicle to obtain a first encryption result; or, encrypting the self-diagnosis information, the hardware detection result of the detection device, the software detection result of the detection device, and the status detection result of the vehicle to obtain a second encryption result; the communication module performs remote wireless communication transmission on the first encryption result or the second encryption result obtained by the encryption module according to a preset communication mode. Specifically, as an example, for example, the encryption module can encrypt the self-diagnosis information, the software detection result of the detection device, and the status detection result of the vehicle to obtain a first encryption result; and then the communication module transmits the first encryption result to the abbreviation result receiving terminal remotely by wireless communication through WIFI communication and / or Bluetooth communication. As another example, for example, the encryption module can encrypt the self-diagnosis information, the hardware detection result of the detection device, the software detection result of the detection device, and the status detection result of the vehicle to obtain a second encryption result; and then the communication module transmits the second encryption result to the abbreviation result receiving terminal remotely by wireless communication through WIFI communication and / or Bluetooth communication. Therefore, in areas where the operator's network is not covered, the encrypted results can be transmitted remotely to the test result receiving terminal through WIFI communication and / or Bluetooth communication, which can also realize remote calibration and diagnostic testing of the vehicle, solving the problem that related detection technologies must rely on operator network coverage.

[0067] In another exemplary embodiment of the present application, the embodiment provides a method for applying the above-mentioned vehicle state detection device to perform vehicle state detection. The framework schematic diagram of the vehicle state detection performed by the method is as follows: Figure 3 Specifically, the process of using the above vehicle state detection device to perform vehicle state detection may include:

[0068] Step 1: Connect the multi-channel CAN interface of the vehicle status detection device to the CAN bus of the vehicle, and connect the multi-channel LIN interface of the vehicle status detection device to the LIN bus of the vehicle, so that the vehicle status detection device establishes a communication connection with the vehicle and obtains the self-diagnosis information of the vehicle.

[0069] Step 2: Configure the vehicle status detection device, including selecting the corresponding vehicle type according to the vehicle selection instruction, and the vehicle status detection device automatically sets the standard value of the vehicle parameter information and the communication parameters of the vehicle status detection device, and the communication parameters include but are not limited to the communication baud rate, communication protocol, etc. Among them, the communication baud rate can be set to 125Kbps, and the communication protocol can adopt the ISO15765-2 standard. At the same time, the vehicle status detection device will perform equipment detection according to the selected vehicle type, calibrate whether the relevant parameters are normal, and if there is an abnormality, the abnormal situation will be transmitted to the mobile terminal device in real time, reminding the user to first detect whether there is a problem with the device to avoid detection errors caused by problems with the vehicle status detection device itself.

[0070] Step 3: Perform a test on the vehicle status detection device. The vehicle status detection device will automatically check the working status of each part of the vehicle status detection device, including checking multiple CAN interfaces, multiple LIN interfaces, and pre-configured communication modules for remote wireless communication, including WIFI communication modules and Bluetooth communication modules. During the detection process, if an abnormal situation is found, such as equipment failure, communication failure, etc., the vehicle status detection device will automatically record the abnormal situation, send an abnormal processing instruction to the vehicle according to the problem situation, and transmit the abnormal situation to the mobile terminal device in real time through the Bluetooth communication module to remind the user to handle it.

[0071] Step 4: According to the selected matching vehicle type, the standard value of the vehicle parameter information is compared with the vehicle's self-diagnosis information to determine the vehicle status, and the basis and result of the abnormal judgment are intercepted to obtain the vehicle status detection result.

[0072] Step 5: Establish a communication connection with a mobile terminal device or a remote terminal device through the WIFI communication module and the Bluetooth communication module, and encrypt and transmit the abnormal status information of the vehicle to the mobile terminal device or the remote terminal device for the user to view the vehicle status and diagnosis basis.

[0073] According to the above records, the detection of vehicle status detection equipment includes hardware detection, software detection and adaptive calibration, among which hardware detection includes real-time monitoring of sensor accuracy (such as voltage / current drift calibration), communication module connection status (based on signal strength and packet loss rate evaluation), and power supply stability (fluctuation threshold ≤±2%); software detection includes the use of redundant verification algorithm to verify the logical integrity of data acquisition, and keep in sync with the cloud server through the heartbeat packet mechanism; adaptive calibration includes automatically calling the preset calibration curve or requesting the latest parameter iteration update on the cloud when sensor deviation is detected.

[0074] According to the above records, when the abnormal status information of the vehicle is encrypted and transmitted to a mobile terminal device or a remote terminal device, a graded response can be made according to the abnormal status of the vehicle. For example, when the vehicle has a minor abnormality, the first-level abnormal response is entered, and the local log is recorded and synchronized to the cloud database; when the vehicle has a moderate abnormality, the second-level abnormal response is entered, and an alarm is pushed to the mobile terminal through the 5G / 4G network (response delay <1s), and the backup sensor is started; when the vehicle has a serious abnormality, the third-level abnormal response is entered, and the vehicle enters a safe mode (for example, limiting power output), and a remote expert consultation request is initiated at the same time.

[0075] It can be seen that the vehicle status detection device in this embodiment integrates multiple CAN and LIN to collect vehicle self-diagnosis information, collects vehicle status information through multiple CAN and LIN, and uses WIFI and Bluetooth communication to transmit information to mobile terminal devices and diagnostic devices, which can realize vehicle-side communication and mobile terminal device communication. Even in places where the network is not covered, the diagnostic information can be transmitted through WIFI and Bluetooth communication to realize remote calibration and diagnosis of the equipment, solving the problem that the relevant remote diagnostic technology depends on the operator's network coverage. At the same time, this embodiment can realize functions such as equipment status detection, vehicle status detection, vehicle status diagnosis and intelligent abnormality processing, reducing the error caused by the abnormal state of the detection equipment, resulting in inaccurate calibration and detection. At the same time, after the detection equipment and the remote terminal device or mobile terminal device are connected, the test status will be fed back in real time, significantly improving the accuracy and real-time performance of remote diagnosis, which can meet the diagnostic needs of modern cars, and solve the problem that the relevant remote diagnostic technology is lacking in diagnostic accuracy and real-time performance, and cannot meet the diagnostic needs of modern cars. In addition, after completing the detection of vehicle status and processing of abnormal data, the detection equipment will generate corresponding test results and abnormal data records. When the information is transmitted to the remote terminal device or mobile terminal device, only the test results and abnormal data records need to be transmitted (including abnormal data and the basis for judging data abnormality). At the same time, the transmitted information will be encrypted, which not only reduces the amount of data transmission, but also improves the security and privacy protection of data transmission, solves the technical problems of related remote diagnosis technology such as large data transmission volume, data transmission security and privacy protection problems, and effectively improves the efficiency of vehicle problem diagnosis.

[0076] It can be understood that the vehicle state detection device provided in the above embodiment and the vehicle state detection method provided in the above embodiment belong to the same concept, wherein the specific manner in which the vehicle state detection method performs the operation has been described in detail in the above embodiment and will not be repeated here. In actual application, the vehicle state detection device provided in the above embodiment can distribute the above functions to different functional modules as needed, that is, divide the internal structure of the vehicle state detection device into different functional modules, and then implement all or part of the functions of the corresponding functional modules through the vehicle state detection method described in the above embodiment, and this is not specifically limited here.

[0077] In summary, the present application provides a vehicle status detection system. When performing vehicle diagnostic detection in places where the operator network cannot cover, the system can transmit diagnostic information through other wireless communication methods to remotely wirelessly transmit diagnostic information, realize remote calibration and diagnostic detection of the vehicle, and solve the problem that related detection technologies must rely on the coverage of the operator network. At the same time, the system can reduce the probability of abnormal state of the detection equipment by performing multiple detections on the detection equipment, avoid inaccurate vehicle calibration and detection caused by abnormalities or errors in the detection equipment, thereby solving the problem of insufficient accuracy of related technologies in vehicle diagnostic detection. Moreover, the system establishes wireless communication between the detection equipment and the detection result receiving terminal. After obtaining the vehicle status detection result, the vehicle status detection result can be fed back to the detection result receiving terminal in real time, thereby improving the real-time performance of remote diagnosis and detection of the vehicle, meeting the diagnostic detection needs of modern automobiles, and solving the lack of real-time detection of related detection technologies. In addition, the system encrypts the vehicle's self-diagnosis information, the detection results of the detection equipment and the vehicle's status detection results, and transmits the encrypted results to the detection result receiving terminal via remote wireless communication. Not only can the transmitted information be encrypted, but also because the amount of information after encryption is smaller than that before encryption, the system can improve the security and privacy protection of data transmission while reducing the amount of data transmission, thereby solving the technical problem that related detection technologies cannot ensure security and privacy protection during data transmission due to the large amount of data transmission.

[0078] In another exemplary embodiment of the present application, the embodiment provides a vehicle, which is applied to the vehicle state detection method described in any of the above embodiments, or the vehicle is applied to the vehicle state detection device described in any of the above embodiments. It can be understood that since the specific manner in which the vehicle state detection device and the vehicle state detection method perform operations has been described in detail in the embodiments, the technical functions and effects of the vehicle provided in this embodiment can be referred to the above embodiments, and will not be repeated here.

[0079] The present application also provides a computer device, which may include a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program so that the computer device executes Figure 1 The steps of the vehicle status detection method. Figure 4 FIG. 1 is a schematic diagram showing a structure of a computer device 1000. Figure 4 As shown, the computer device 1000 includes: a processor 1010 , a memory 1020 , a power supply 1030 , a display unit 1040 , and an input unit 1060 .

[0080] The processor 1010 is the control center of the computer device 1000. It uses various interfaces and lines to connect various components, and executes various functions of the computer device 1000 by running or executing computer programs / instructions stored in the memory 1020, thereby monitoring the computer device 1000 as a whole. In the embodiment of the present application, when the processor 1010 calls the computer program stored in the memory 1020, the following is executed: Figure 1 The steps of the vehicle state detection method. Optionally, the processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application, etc., and the modem processor mainly processes wireless communication. In some embodiments, the processor and the memory may be implemented on a single chip, and in some embodiments, they may also be implemented separately on separate chips.

[0081] The memory 1020 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, various applications, etc.; the data storage area may store instruction data, etc. created according to the use of the computer device 1000. In addition, the memory 1020 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices, etc.

[0082] The computer device 1000 also includes a power source 1030 (such as a battery) for supplying power to various components. The power source can be logically connected to the processor 1010 through a power management system, so that the power management system can manage functions such as charging, discharging, and power consumption.

[0083] The display unit 1040 may be used to display information input by the user or information provided to the user and various menus of the computer device 1000, and in the embodiment of the present application, is mainly used to display the display interface of each application in the computer device 1000 and objects such as text and pictures displayed in the display interface. The display unit 1040 may include a display panel 1050. The display panel 1050 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0084] The input unit 1060 may be used to receive information such as numbers or characters input by the user. The input unit 1060 may include a touch panel 1070 and other input devices 1080. The touch panel 1070, also known as a touch screen, may collect touch operations of the user on or near it (such as operations of the user using a finger, a stylus, or any other suitable object or accessory on or near the touch panel 1070).

[0085] Specifically, the touch panel 1070 can detect the user's touch operation, detect the signal brought by the touch operation, convert these signals into touch point coordinates, send them to the processor 1010, and receive and execute the command sent by the processor 1010. In addition, the touch panel 1070 can be implemented in various types such as resistive, capacitive, infrared and surface acoustic wave. Other input devices 1080 can include but are not limited to one or more of a physical keyboard, function keys (such as volume control keys, power on / off keys, etc.), a trackball, a mouse, a joystick, etc.

[0086] Of course, the touch panel 1070 can cover the display panel 1050. When the touch panel 1070 detects a touch operation on or near it, it is transmitted to the processor 1010 to determine the type of touch event, and then the processor 1010 provides a corresponding visual output on the display panel 1050 according to the type of touch event. Figure 4 In the embodiment, the touch panel 1070 and the display panel 1050 are two independent components to implement the input and output functions of the computer device 1000, but in some embodiments, the touch panel 1070 and the display panel 1050 can be integrated to implement the input and output functions of the computer device 1000.

[0087] The computer device 1000 may further include one or more sensors, such as a pressure sensor, a gravity acceleration sensor, a proximity light sensor, etc. Of course, according to the needs of specific applications, the computer device 1000 may also include other components such as a camera.

[0088] The embodiment of the present application also provides a computer-readable storage medium, in which a computer program / instruction is stored. When the computer program / instruction is executed by a processor, the above-mentioned device can perform the above-mentioned Figure 1 The steps of the vehicle status detection method.

[0089] It can be understood by those skilled in the art that Figure 4 This is only an example of a computer device and does not constitute a limitation on the device. The device may include more or fewer components than shown in the figure, or combine certain components, or different components. For the convenience of description, the above parts are divided into modules (or units) according to their functions and described separately. Of course, when implementing this application, the functions of each module (or unit) can be implemented in the same or multiple software or hardware.

[0090] Those skilled in the art will appreciate that the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application, and it should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be applied to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the functions in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including an instruction device, which implements the functions specified in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0091] It is understandable that the above embodiments collect, store, use, process, transmit, provide, disclose, delete, etc. related data (such as self-diagnosis information, etc.) with or with the consent of the user. For example, the self-diagnosis information is authorized with the knowledge and consent of the user; or it is actively provided by the user after reading the relevant instructions, or it is actively authorized / provided / uploaded by the user when using some or all of the functions described in the above embodiments, or it is obtained by other means / channels with or with the consent of the user.

[0092] It is understood that, although the terms first, second, third, etc. may be used to describe the abnormality level, etc. in the embodiments of the present application, these terms are only used to distinguish the abnormality levels from each other. For example, without departing from the scope of the embodiments of the present application, the first abnormality level may also be referred to as the second abnormality level, and similarly, the second abnormality level may also be referred to as the first abnormality level.

[0093] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A vehicle state detection method, characterized in that: The method comprises: Acquiring self-diagnosis information of the vehicle; wherein the self-diagnosis information is obtained by a diagnostic system pre-configured for the vehicle; Responding to an externally input vehicle selection instruction, matching a corresponding vehicle type according to the vehicle selection instruction, and configuring corresponding vehicle standard parameter information according to the vehicle type; Comparing the self-diagnosis information with the vehicle standard parameter information to obtain a state detection result of the vehicle; The self-diagnosis information and the vehicle status detection result are transmitted via remote wireless communication according to a preset communication method; wherein the preset communication method includes Bluetooth communication and / or WIFI communication.

2. The vehicle state detection method according to claim 1, characterized in that: The method further comprises: Performing voltage drift detection and current drift detection on the detection device according to the vehicle type, and associating the voltage drift detection result and the current drift detection result as the sensor detection result of the detection device; and, performing communication signal strength detection and packet loss rate detection on the detection device according to the vehicle type, and associating the communication signal strength detection result and the packet loss rate detection result as the communication connection state detection result of the detection device; and, Performing power fluctuation threshold detection on the detection device according to the vehicle type, and using the power fluctuation threshold detection result as the power stability detection result of the detection device; The sensor detection result, the communication connection status detection result and the power supply stability detection result are combined as the hardware detection result of the detection device; wherein the detection device is connected to the vehicle for performing vehicle status detection.

3. The vehicle state detection method according to claim 1 or 2, characterized in that: The method further comprises: Performing communication baud rate detection and communication protocol detection on the detection device according to the vehicle type; and performing redundancy check detection on the detection device during data transmission; and performing heartbeat packet sending and receiving verification detection on the detection device during data transmission; The communication baud rate detection result, the communication protocol detection result, the redundancy check detection result and the heartbeat packet receiving and sending verification detection result are combined as the software detection result of the detection device; wherein the detection device is connected to the vehicle for vehicle status detection.

4. The vehicle state detection method according to claim 2, characterized in that: The method further comprises: Determining whether a sensor in the detection device has an accuracy deviation according to the voltage drift detection result and / or the current drift detection result; If the voltage drift detection result is that voltage drift occurs, and / or the current drift detection result is that current drift occurs, it is determined that there is an accuracy deviation in the sensor in the detection device, and a preset correction curve is called to perform accuracy correction on the sensor in the detection device.

5. The vehicle state detection method according to claim 1, characterized in that: If the vehicle status detection result is that the vehicle is abnormal, the method further includes: Entering the first abnormal level, the log records on the vehicle side are synchronized to the cloud database; Alternatively, the second abnormal level is entered, and an alarm message is pushed through the mobile communication network; Alternatively, entering the third abnormal level, controlling the vehicle to enter a safety mode, limiting the power output of the vehicle, and initiating a remote diagnosis request; The first abnormality level, the second abnormality level and the third abnormality level are determined according to the abnormality degree of the vehicle, and the abnormality degree corresponding to the first abnormality level is smaller than that of the second abnormality level, and the abnormality degree corresponding to the second abnormality level is smaller than that of the third abnormality level.

6. The vehicle state detection method according to claim 4, characterized in that: The method further comprises: Encrypting the self-diagnosis information, the software detection result of the detection device, and the status detection result of the vehicle to obtain a first encryption result; or encrypting the self-diagnosis information, the hardware detection result of the detection device, the software detection result of the detection device, and the status detection result of the vehicle to obtain a second encryption result; The first encryption result or the second encryption result is transmitted via remote wireless communication according to a preset communication method.

7. A vehicle status detection device, characterized in that: The detection equipment includes: A communication interface, used to establish a communication connection with a vehicle and obtain self-diagnosis information of the vehicle; wherein the self-diagnosis information is obtained by a diagnostic system pre-configured for the vehicle; A configuration module, used to match a corresponding vehicle type according to a vehicle selection instruction, and configure corresponding vehicle standard parameter information according to the vehicle type; wherein the vehicle selection instruction is inputted externally; A first detection module, used for comparing the self-diagnosis information with the vehicle standard parameter information to obtain a state detection result of the vehicle; The communication module is used to perform remote wireless communication transmission of the self-diagnosis information and the vehicle status detection result according to a preset communication method; wherein the preset communication method includes Bluetooth communication and / or WIFI communication.

8. The vehicle state detection device according to claim 7, characterized in that: The detection device further includes a second detection module, which is used to perform voltage drift detection and current drift detection on the detection device according to the vehicle type, and associate the voltage drift detection result with the current drift detection result as the sensor detection result of the detection device; and, performing communication signal strength detection and packet loss rate detection on the detection device according to the vehicle type, and associating the communication signal strength detection result and the packet loss rate detection result as the communication connection state detection result of the detection device; and, performing a power fluctuation threshold detection on the detection device according to the vehicle type, and using the power fluctuation threshold detection result as a power stability detection result of the detection device; The sensor detection result, the communication connection state detection result and the power supply stability detection result are combined as the hardware detection result of the detection device.

9. The vehicle state detection device according to claim 7 or 8, characterized in that: The detection device further comprises a third detection module, which is used to perform communication baud rate detection and communication protocol detection on the detection device according to the vehicle type; and perform redundancy check detection on the detection device during data transmission; And, performing a heartbeat packet sending and receiving verification test on the detection device during the data transmission process; The communication baud rate detection result, the communication protocol detection result, the redundancy check detection result and the heartbeat packet receiving and sending verification detection result are combined as the software detection result of the detection device.

10. A vehicle, characterized in that: The vehicle is applied to the vehicle state detection method as described in any one of claims 1 to 6, or the vehicle is applied to the vehicle state detection device as described in any one of claims 7 to 9.

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