CN112068536A - Universal self-adaptive vehicle remote diagnosis method, device and system - Google Patents
Universal self-adaptive vehicle remote diagnosis method, device and system Download PDFInfo
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- CN112068536A CN112068536A CN202011051060.8A CN202011051060A CN112068536A CN 112068536 A CN112068536 A CN 112068536A CN 202011051060 A CN202011051060 A CN 202011051060A CN 112068536 A CN112068536 A CN 112068536A
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- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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Abstract
The invention discloses a universal self-adaptive vehicle remote diagnosis method which comprises vehicle data acquisition equipment, a cloud server and data receiving equipment, wherein the vehicle data acquisition equipment is used for acquiring fault information of each ECU (electronic control unit) of a vehicle read by the vehicle; the vehicle data acquisition equipment sends the acquired fault information to a cloud server through an Ethernet gateway for storage; the cloud server encrypts and encapsulates the fault information of the same vehicle to form a CAN message for unified storage and generate a corresponding ID; receiving a vehicle fault information message in a cloud server through data receiving equipment, and analyzing the fault information message into multi-frame fault information; and the data receiving equipment sends the analyzed fault information to the traditional general diagnostic equipment for diagnosis, so that the traditional diagnostic equipment can carry out real-time remote diagnosis on the vehicle. The diagnosis of the traditional universal diagnosis equipment is facilitated, the universality and the popularization rate are improved, and the safety of the vehicle is ensured.
Description
Technical Field
The invention relates to the technical field of vehicle fault diagnosis service, in particular to a universal self-adaptive vehicle remote diagnosis method, device and system.
Background
The conventional diagnostic system of the vehicle is called as an On-Board automatic diagnostic system (OBD), which is an abbreviation of On-Board Diagnostics in English. The method comprises the steps of continuously monitoring the working condition of a vehicle electronic device in the running process of the vehicle, judging a specific fault according to a specific algorithm when an abnormality is found, storing the specific fault in a code mode, starting the corresponding fault running module function, reminding a vehicle owner through a fault lamp, asking the vehicle owner to drive the vehicle to a repair shop for maintenance, and enabling a maintenance worker to call a fault code by utilizing the vehicle fault self-diagnosis function to quickly locate and repair the fault.
Modern Electronic Control Units (ECUs) of automobiles have the function of fault self-diagnosis, and can continuously monitor various sensors, actuators and connecting lines during the running of the automobiles. They share the signal input circuit of the electronic control system of the automobile. When a vehicle runs, the voltage or current values of input and output signals of the electronic control system have a certain variation range, when a certain signal exceeds a preset range value and the phenomenon does not disappear within a certain time, the fault self-diagnosis system judges that a circuit or a component corresponding to the signal has a fault, stores the fault into an internal memory in the form of a code, and simultaneously lights a fault indicator lamp on an instrument panel.
The vehicle remote diagnosis technology is an innovation for applying the modern communication network technology to the field of vehicle diagnosis, can realize remote vehicle fault diagnosis and repair, improves the real-time performance of vehicle fault troubleshooting and reduces the maintenance cost. The remote diagnosis technology is mainly different from the traditional diagnosis technology in that a vehicle manufacturer changes passive diagnosis into active diagnosis, can remotely diagnose a vehicle at any time or at regular intervals and remotely repair a fault, but the existing remote diagnosis technology needs to analyze data protocols for different vehicles, so that specific software development work needs to be carried out for different vehicle types. The method is characterized in that the conventional diagnostic equipment and instruments are arranged for conventional vehicle manufacturers and maintenance enterprises, but the conventional diagnostic equipment and instruments do not have software development capability, so that the popularity of the new technology of remote diagnosis is greatly reduced, and a universal adaptive vehicle remote diagnosis method is proposed for solving the problems.
Disclosure of Invention
The invention aims to provide a universal adaptive vehicle remote diagnosis method, device and system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a universal adaptive vehicle remote diagnosis method comprises the following steps:
s1, collecting fault information of each ECU of the vehicle read by the vehicle through vehicle data collection equipment;
s2, the vehicle data acquisition equipment sends the acquired fault information to a cloud server through an Ethernet gateway for storage;
s3, the cloud server encrypts and encapsulates the fault information of the same vehicle to form a CAN message for unified storage and generate a corresponding ID;
s4, receiving a vehicle fault information message in the cloud server through the data receiving equipment, and analyzing the fault information message into multi-frame fault information;
and S5, the data receiving equipment sends the analyzed fault information to the traditional general diagnostic equipment for diagnosis, and the traditional diagnostic equipment can carry out real-time remote diagnosis on the vehicle.
In a preferred embodiment, in step S1, the vehicle collection device collects failure information of each ECU by reading RAM data in the vehicle-mounted computer, the vehicle collection device determines a communication state of the vehicle-mounted computer before collecting the data information, and if the vehicle-mounted computer is currently in a sleep state, the vehicle collection device sends a wake-up command through the driving module to wake up the vehicle-mounted computer through the bus to read the failure information.
In a preferred embodiment, in step S3, the cloud server encapsulates the vehicle fault information through the CAN communication data link to form a CAN message.
In a preferred embodiment, in step S4, the data receiving device logs in the cloud server through the network, so as to receive the vehicle fault information message, and when sending data to the diagnosis device, sends the multi-frame fault information to the diagnosis device through the UDS diagnosis communication protocol.
A universal adaptive vehicle remote diagnostic device comprising:
the vehicle data acquisition equipment is arranged on a diagnosed vehicle, is adapted to detect the frequency of a vehicle communication bus and adjusts the frequency to be consistent with that of the vehicle, so as to acquire vehicle data information in real time and send the data information to the cloud server;
the cloud server integrates and forms a CAN message for storage after receiving the vehicle data information, and sets a corresponding ID for the vehicle information message;
the data receiving equipment is connected with the traditional universal diagnosis equipment, the data receiving equipment calls and receives data messages of corresponding vehicles in the cloud server after being electrified and logged in, analyzes the data messages to form universal multi-frame fault information, and sends the universal multi-frame fault information to the universal diagnosis equipment for diagnosis.
A universal adaptive vehicle remote diagnostic system comprising:
the acquisition module is arranged in the vehicle data acquisition equipment and is used for acquiring vehicle data;
the storage module is arranged in the cloud server and used for storing and calling the vehicle information;
and the receiving module is used for receiving the vehicle data information and analyzing the vehicle data information, so that diagnosis of the general diagnosis equipment is facilitated.
In a preferred embodiment, the acquisition module comprises a RAM reading module, an ethernet module and a driving module, and the RAM reading module is connected with a memory in the vehicle ECU so as to read the data of each ECU of the vehicle; the Ethernet module is connected with the RAM reading module and is used for transmitting and sending the read data to the storage module for storage; the driving module is connected with the RAM reading module and used for waking up the vehicle ECU through the bus to read data when the vehicle ECU is in a dormant state.
In a preferred embodiment, the receiving module includes a data transmission module, a CAN communication module, a UDS module and a network management module, the data transmission module is used for performing data transmission with the cloud server and the diagnostic device, the network management module is used for logging in an account to search corresponding vehicle data in the cloud server, the CAN communication module is a CAN communication data link layer, and data messages called from the cloud server are analyzed to form universal multi-frame information, so that the diagnostic device CAN conveniently diagnose; and the UDS module stores a UDS diagnosis communication protocol and sends multi-frame fault information to the diagnosis equipment.
Compared with the prior art, the invention has the beneficial effects that: the vehicle data acquisition equipment is connected with the vehicle ECU, each ECU information of the vehicle is read through the RAM reading module, the information is sent to the cloud server, the vehicle information is integrated and coded through the cloud server to form a CAN message, the vehicle information message in the cloud server is called and received through the receiving equipment, universal multi-frame information is formed through analysis, the traditional universal diagnosis equipment is convenient to diagnose, the ID information of the vehicle data acquisition equipment and the ID information of the data receiving equipment are paired and used through the cloud server, decoupling of two different devices is realized, free and flexible binding and use CAN be realized as long as the IDs of the two different devices are known, the universality and the popularization rate are improved, and the vehicle safety is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an acquisition module according to the present invention;
fig. 3 is a schematic diagram of a receiving module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a universal adaptive vehicle remote diagnosis method comprises the following steps:
s1, collecting fault information of each ECU of the vehicle read by the vehicle through vehicle data collection equipment;
s2, the vehicle data acquisition equipment sends the acquired fault information to a cloud server through an Ethernet gateway for storage;
s3, the cloud server encrypts and encapsulates the fault information of the same vehicle to form a CAN message for unified storage and generate a corresponding ID;
s4, receiving a vehicle fault information message in the cloud server through the data receiving equipment, and analyzing the fault information message into multi-frame fault information;
and S5, the data receiving equipment sends the analyzed fault information to the traditional general diagnostic equipment for diagnosis, and the traditional diagnostic equipment can carry out real-time remote diagnosis on the vehicle.
Further, in step S1, the vehicle collection device collects failure information of each ECU by reading RAM data in the vehicle-mounted computer, and determines a communication state of the vehicle-mounted computer before the vehicle collection device collects the data information, and if the vehicle-mounted computer is currently in a dormant state, the vehicle collection device sends a wake-up command through the driving module, and wakes up the vehicle-mounted computer through the bus to read the failure information, thereby facilitating reading the vehicle data information.
Further, in step S3, the cloud server encapsulates the vehicle fault information through the CAN communication data link to form a CAN message, so as to encode and store the data information, thereby unifying the vehicle data information, and by corresponding encoding and parsing between the cloud server and the data receiving device, parsing the information collected by the specific software of different vehicles into general multi-frame information, thereby implementing diagnosis of the general diagnosis device.
Further, in step S4, the data receiving device logs in the cloud server through the network, so as to receive the vehicle fault information message, and when sending data to the diagnostic device, sends the multi-frame fault information to the diagnostic device through the UDS diagnostic communication protocol.
A universal adaptive vehicle remote diagnostic device comprising:
the vehicle data acquisition equipment is arranged on the diagnosed vehicle, is adapted to detect the frequency of a vehicle communication bus and adjusts the frequency to be consistent with that of the vehicle, so as to acquire vehicle data information in real time and send the data information to the cloud server;
the cloud server integrates the vehicle data information after receiving the vehicle data information, forms a CAN message for storage, and sets a corresponding ID for the vehicle information message;
the data receiving equipment is connected with the traditional universal diagnosis equipment, calls and receives data messages of corresponding vehicles in the cloud server after the data receiving equipment is electrified and logged in, analyzes the data messages to form universal multi-frame fault information, and sends the universal multi-frame fault information to the universal diagnosis equipment for diagnosis.
A universal adaptive vehicle remote diagnostic system comprising:
the acquisition module is arranged in the vehicle data acquisition equipment and is used for acquiring vehicle data;
the storage module is arranged in the cloud server and used for storing and calling the vehicle information;
and the receiving module is used for receiving the vehicle data information and analyzing the vehicle data information, so that diagnosis of the general diagnostic equipment is facilitated.
Furthermore, the acquisition module comprises an RAM reading module, an Ethernet module and a driving module, wherein the RAM reading module is connected with a memory in the vehicle ECU so as to read the data of each ECU of the vehicle; the Ethernet module is connected with the RAM reading module and is used for transmitting and sending the read data to the storage module for storage; the driving module is connected with the RAM reading module and used for waking up the vehicle ECU through the bus to read data when the vehicle ECU is in a dormant state.
Furthermore, the receiving module comprises a data transmission module, a CAN communication module, a UDS module and a network management module, the data transmission module is used for carrying out data transmission with the cloud server and the diagnosis equipment, the network management module is used for logging in an account number so as to search corresponding vehicle data in the cloud server, the CAN communication module is a CAN communication data link layer and analyzes data messages called from the cloud server to form universal multi-frame information, and diagnosis of the diagnosis equipment is facilitated; and the UDS module stores a UDS diagnosis communication protocol and sends multi-frame fault information to the diagnosis equipment.
In summary, the vehicle data acquisition device is connected with the vehicle ECU, the information of each ECU of the vehicle is read through the RAM reading module and is sent to the cloud server, the vehicle information is integrated and coded through the cloud server to form a CAN message, the vehicle information message in the cloud server is called and received through the receiving device, and the universal multi-frame information is formed through analysis, so that the diagnosis of the traditional universal diagnosis device is facilitated, the ID information of the vehicle data acquisition device and the ID information of the data receiving device are paired and used through the cloud server, the decoupling of two different devices is realized, the free and flexible binding and use CAN be realized as long as the IDs of the two different devices are known, and the universality is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A universal adaptive vehicle remote diagnostic method, comprising the steps of:
s1, collecting fault information of each ECU of the vehicle read by the vehicle through vehicle data collection equipment;
s2, the vehicle data acquisition equipment sends the acquired fault information to a cloud server through an Ethernet gateway for storage;
s3, the cloud server encrypts and encapsulates the fault information of the same vehicle to form a CAN message for unified storage and generate a corresponding ID;
s4, receiving a vehicle fault information message in the cloud server through the data receiving equipment, and analyzing the fault information message into multi-frame fault information;
and S5, the data receiving equipment sends the analyzed fault information to the traditional general diagnostic equipment for diagnosis, and the traditional diagnostic equipment can carry out real-time remote diagnosis on the vehicle.
2. The universal adaptive vehicle remote diagnosis method according to claim 1, characterized in that: in step S1, the vehicle collection device collects failure information of each ECU by reading RAM data in the vehicle-mounted computer, the vehicle collection device determines a communication state of the vehicle-mounted computer before collecting the data information, and if the vehicle-mounted computer is currently in a sleep state, the vehicle collection device sends a wake-up instruction through the driving module, and wakes up the vehicle-mounted computer through the bus to read the failure information.
3. The universal adaptive vehicle remote diagnosis method according to claim 1, characterized in that: in step S3, the cloud server encapsulates the vehicle fault information through the CAN communication data link to form a CAN message.
4. The universal adaptive vehicle remote diagnosis method according to claim 1, characterized in that: in step S4, the data receiving device logs in the cloud server through the network, thereby receiving the vehicle fault information message, and when sending data to the diagnostic device, sends the multi-frame fault information to the diagnostic device through the UDS diagnostic communication protocol.
5. A universal adaptive vehicle remote diagnostic device, comprising:
the vehicle data acquisition equipment is arranged on a diagnosed vehicle, is adapted to detect the frequency of a vehicle communication bus and adjusts the frequency to be consistent with that of the vehicle, so as to acquire vehicle data information in real time and send the data information to the cloud server;
the cloud server integrates and forms a CAN message for storage after receiving the vehicle data information, and sets a corresponding ID for the vehicle information message;
the data receiving equipment is connected with the traditional universal diagnosis equipment, the data receiving equipment calls and receives data messages of corresponding vehicles in the cloud server after being electrified and logged in, analyzes the data messages to form universal multi-frame fault information, and sends the universal multi-frame fault information to the universal diagnosis equipment for diagnosis.
6. A universal adaptive vehicle remote diagnostic system, comprising:
the acquisition module is arranged in the vehicle data acquisition equipment and is used for acquiring vehicle data;
the storage module is arranged in the cloud server and used for storing and calling the vehicle information;
and the receiving module is used for receiving the vehicle data information and analyzing the vehicle data information, so that diagnosis of the general diagnosis equipment is facilitated.
7. The universal adaptive vehicle remote diagnostic system according to claim 6, wherein: the acquisition module comprises an RAM reading module, an Ethernet module and a driving module, and the RAM reading module is connected with a memory in the vehicle ECU so as to read the data of each ECU of the vehicle; the Ethernet module is connected with the RAM reading module and is used for transmitting and sending the read data to the storage module for storage; the driving module is connected with the RAM reading module and used for waking up the vehicle ECU through the bus to read data when the vehicle ECU is in a dormant state.
8. The universal adaptive vehicle remote diagnostic system according to claim 6, wherein: the receiving module comprises a data transmission module, a CAN communication module, a UDS module and a network management module, the data transmission module is used for carrying out data transmission with the cloud server and the diagnosis equipment, the network management module is used for logging in an account number so as to search corresponding vehicle data in the cloud server, the CAN communication module is a CAN communication data link layer and analyzes data messages called from the cloud server to form universal multi-frame information, and diagnosis of the diagnosis equipment is facilitated; and the UDS module stores a UDS diagnosis communication protocol and sends multi-frame fault information to the diagnosis equipment.
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Cited By (6)
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| CN113311816A (en) * | 2021-06-10 | 2021-08-27 | 中国第一汽车股份有限公司 | Vehicle remote diagnosis system and method |
| CN113467419A (en) * | 2021-06-29 | 2021-10-01 | 重庆长安汽车股份有限公司 | Vehicle fault active alarm system |
| CN113721591A (en) * | 2021-09-03 | 2021-11-30 | 深圳市元征科技股份有限公司 | OBD equipment inspection method, device, terminal and storage medium |
| CN114185329A (en) * | 2021-12-07 | 2022-03-15 | 深圳市星卡软件技术开发有限公司 | Automobile system fault processing method, device, equipment and medium |
| CN114237205A (en) * | 2021-12-16 | 2022-03-25 | 北京福田戴姆勒汽车有限公司 | Vehicle fault diagnosis method and device, vehicle and storage medium |
| CN115225422A (en) * | 2022-06-30 | 2022-10-21 | 际络科技(上海)有限公司 | Vehicle CAN bus data acquisition method and device |
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