CN114839959A - Vehicle remote diagnosis method and system based on SOA (service oriented architecture) service - Google Patents
Vehicle remote diagnosis method and system based on SOA (service oriented architecture) service Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- 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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The invention discloses a vehicle remote diagnosis method and a system based on SOA service, which comprises the following steps: step 1: the vehicle-mounted terminal sends a request for remote diagnosis to the TSP; step 2: after receiving the request, the TSP sends a diagnosis instruction to the TBOX; and step 3: TBOX judges whether the diagnosis instruction is executed; if yes, performing step 4; if not, returning an error code to the TSP, and simultaneously prompting that the vehicle-mounted terminal cannot carry out remote diagnosis; and 4, step 4: the TBOX diagnoses the corresponding target controller according to the type of the diagnosis instruction; and 5: and after the TBOX is diagnosed, feeding back diagnosis result data to the TSP. The invention achieves the aim of remote diagnosis of the vehicle by establishing the CAN node and Ethernet node diagnosis process based on the SOA service architecture, thereby helping to improve the electronic development of the vehicle and improving the dynamic performance, the safety performance and the stability of the vehicle.
Description
Technical Field
The invention relates to the technical field of vehicle fault remote diagnosis, in particular to a vehicle remote diagnosis method and system based on SOA service.
Background
With the rapid development of the automobile industry, automobiles increasingly adopt electronic control modules and vehicle-mounted integrated network systems, and data on an automobile internal bus can be acquired and transmitted to a background through a mobile internet and application of big data by a vehicle-mounted terminal acquisition control module. By collecting and monitoring the data of the vehicle electronic control system in real time, the diagnosis center can perform online diagnosis on the working state of vehicle components and module faults; in addition, the accumulated monitoring and diagnosis data are analyzed, and the analysis result helps a design department to improve the development of an electronic system of the vehicle and improve the dynamic performance, the safety performance and the vehicle stability.
SOA (Service-Oriented Architecture) is known as a Service-Oriented Architecture. When a system receives a service request, it is often necessary to invoke another system to complete the service request.
In the prior art of remote diagnosis of vehicles, the following disadvantages prevail:
in the existing remote diagnosis technology, remote diagnosis based on a single controller or a CAN or DoIP protocol among a plurality of controllers is possible, but remote diagnosis based on a CAN and DoIP protocol of SOA service has no mature method for a while. In the prior patent, there is also a description of a remote vehicle diagnosis method, such as patent 201980058783X, which receives a TCP packet of a diagnosis device by a data transmission control protocol TCP communication method, encapsulates the TCP packet into a first packet, and transmits the first packet to a vehicle connector by remote communication; the vehicle connector converts the received first data packet into a TCP diagnosis instruction data packet and sends the TCP diagnosis instruction data packet to the vehicle. The method has the advantages that the running stability degree completely depends on the smooth network, and the remote simulation DoIP local diagnosis method mode cannot achieve the purpose of remote and local simultaneous diagnosis.
Disclosure of Invention
In view of the above disadvantages in the prior art, an object of the present invention is to provide a vehicle remote diagnosis method and system based on SOA service, so as to solve the following problems in the prior art: 1) service based on SOA cannot be remotely diagnosed; 2) CAN protocol remote diagnosis based on SOA service cannot be realized; 3) and the remote diagnosis of the DoIP protocol based on SOA service cannot be realized.
In order to solve the technical problems, the invention adopts the following technical scheme:
a vehicle remote diagnosis method based on SOA service comprises the following steps:
step 1: the vehicle-mounted terminal sends a request for remote diagnosis to the TSP;
step 2: after receiving the request, the TSP sends a diagnosis instruction to the TBOX;
and step 3: TBOX judges whether the diagnosis instruction is executed; if yes, performing step 4; if not, returning an error code to the TSP, and simultaneously prompting that the vehicle-mounted terminal cannot carry out remote diagnosis;
and 4, step 4: the TBOX diagnoses the corresponding target controller according to the type of the diagnosis instruction;
and 5: and after the TBOX diagnosis is finished, feeding back diagnosis result data to the TSP.
The invention also provides a vehicle remote diagnosis system based on SOA service, which is characterized by comprising a TSP, a TBOX and a vehicle-mounted controller terminal;
the TSP is used as a main body for remotely reading the diagnostic data and is used for receiving a remote diagnostic request, sending a remote diagnostic instruction to the TBOX and receiving and analyzing the diagnostic data uploaded by the TBOX;
the TBOX is used for judging the current vehicle state, judging whether the current vehicle state can be diagnosed or not, feeding back an error code corresponding to the TSP if the current vehicle state cannot be diagnosed, and giving a prompt that diagnosis cannot be performed at the vehicle-mounted terminal; meanwhile, the TBOX is used for receiving and analyzing a diagnosis instruction issued by the TSP, and diagnosing a target controller corresponding to the TSP according to the IP address and the controller logic address in the DoIP message; after the diagnosis is completed, the TBOX feeds back the diagnosis result data to the TSP;
the vehicle-mounted controller terminal is used as a diagnosed target controller and used for responding to a diagnosis request sent by the Ethernet node at TBOX; meanwhile, the vehicle-mounted controller terminal is used as a diagnosis gateway for hanging the CAN and CANFD nodes, and is used for converting a DoIP message sent by the CAN Node of the TBOX into a DoCAN message and sending the DoCAN message to the CAN/CANFD Node corresponding to the CAN/CANFD Node, and the CAN/CANFD Node corresponding to the CAN/CANFD Node is used as a diagnosed target controller, responds to a diagnosis request sent by the TBOX, diagnoses the CAN/CANFD Node and feeds back a diagnosis result.
Compared with the prior art, the invention has the following beneficial effects:
the method and the system achieve the aim of remotely diagnosing the vehicle by establishing the CAN node and the Ethernet node diagnosis process based on the SOA service architecture, thereby helping to improve the electronic development of the vehicle and improving the dynamic performance, the safety performance and the stability of the vehicle.
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Fig. 1 is a flowchart of a vehicle remote diagnosis method based on SOA service according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, the described embodiments should not be construed as limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
Vehicle remote diagnosis method based on SOA service
Step 1: the in-vehicle terminal transmits a request for remote diagnosis to the TSP. The user sends a request for remote diagnosis to the TSP through the vehicle-mounted terminal, and a TSP (telematics Service provider) automobile remote Service provider is in a core position in the industrial chain of the vehicle network, and is connected with an automobile, a vehicle-mounted equipment manufacturer, a network operator and a content provider.
Step 2: after receiving the request, the TSP sends a diagnostic instruction to the TBOX. In the process of issuing the diagnosis instruction, the TSP calls a remote control interface (based on an MQTT protocol) to issue the diagnosis instruction, the TBOX receives the remote control instruction issued by the TSP, converts the MQTT protocol into a DDS, calls the diagnosis service through the DDS service, and issues the instruction to the corresponding domain control according to the diagnosis instruction.
And step 3: TBOX judges whether the diagnosis instruction is executed; if yes, performing step 4; if not, returning an error code to the TSP, and simultaneously prompting that the remote diagnosis cannot be carried out by the vehicle-mounted terminal. The vehicle end can only support one process at the same time, priority division does not exist, the corresponding process is executed when the process acquires the resources first, remote diagnosis conditions are not met if the vehicle is under local diagnosis or OTA, and remote diagnosis can be carried out if the vehicle is not under the remote diagnosis conditions.
And 4, step 4: TBOX diagnoses the corresponding target controller based on the type of diagnostic command. And the TBOX receives and analyzes the diagnosis instruction sent by the TSP, and diagnoses the corresponding target controller according to the IP address and the controller logic address in the DoIP message. In specific implementation, the vehicle-mounted controller terminal serves as a diagnosed target controller, is responsible for correctly responding to a diagnosis request issued by the ethernet node of the TBOX, and serves as a diagnosis gateway for hanging the CAN and CANFD nodes, and is responsible for converting a DoIP message sent by the CAN node into a DoCAN message and forwarding the DoCAN message to the corresponding CAN/CANFD node. The CAN/CANFD Node is used as a target controller to be further diagnosed and is responsible for correctly responding to a diagnosis request issued by TBOX. If the TBOX is a diagnosis request issued by the Ethernet node, the vehicle-mounted controller terminal is used as a diagnosed target controller to directly diagnose the domain control itself. If the CAN/CANFD controller hung under the domain control needs to be diagnosed, the domain control converts the DoIP into the CAN/CANFD, then an instruction is issued to the corresponding controller, the controller responds to a CAN/CANFD protocol, and the domain control converts the CAN/CANFD into the DoIP and uploads the DoIP to the cloud.
And 5: and after the TBOX is diagnosed, feeding back diagnosis result data to the TSP. In the data uploading process, the diagnosis result is in the domain control of TBOX, the DDS service is adopted, the data acquisition center is called, the data acquisition center uploads the data to the data uploading module through the DDS, and the data are fed back to the TSP through the MQTT.
Second, vehicle remote diagnosis system based on SOA service
The SOA service-based vehicle remote diagnosis system is used for executing the diagnosis method and comprises a TSP (automotive remote service provider), a TBOX (vehicle-mounted communication basic terminal) and a vehicle-mounted controller terminal;
the TSP is used as a main body for remotely reading the diagnostic data and is used for receiving a remote diagnostic request, sending a remote diagnostic instruction to the TBOX and receiving and analyzing the diagnostic data uploaded by the TBOX.
The TBOX is used for judging the current vehicle state, judging whether the current vehicle state can be diagnosed or not, feeding back an error code corresponding to the TSP if the current vehicle state cannot be diagnosed, and giving a prompt that diagnosis cannot be performed at the vehicle-mounted terminal; meanwhile, the TBOX is used for receiving and analyzing a diagnosis instruction issued by the TSP, and diagnosing a target controller corresponding to the TSP according to the IP address and the controller logic address in the DoIP message; after the diagnosis is completed, the TBOX feeds back the diagnosis result data to the TSP;
an on-board controller terminal (Eth Node) as a diagnosed target controller for responding to a diagnosis request sent by the Ethernet Node at TBOX; meanwhile, the vehicle-mounted controller terminal is used as a diagnosis gateway for hanging the CAN and CAN FD nodes, and is used for converting a DoIP message sent by the CAN node of the TBOX into a DoCAN message and sending the DoCAN message to the corresponding CAN/CAN FD node. And the CAN/CANFD Node is used as a final target controller to be diagnosed and is responsible for correctly responding to a diagnosis request issued by the TBOX.
As shown in fig. 1, the system of the present invention is implemented as follows:
step 1: and the TSP judges whether a diagnosis instruction needs to be issued or not. If so, entering the step 2; otherwise, executing step 1;
and 2, step: the TSP issues a diagnosis instruction to the TBOX and the step 3 is carried out;
and step 3: TBOX determines whether the diagnostic instruction can be executed. If yes, executing step 4; if not, go to step 12;
and 4, step 4: TBOX issues a diagnosis instruction to the Eth Node, and the step 5 is entered;
and 5: the Eth Node judges the type of the diagnosis instruction, and if the instruction depends on the Ethernet Node, the step 6 is carried out; if the instruction depends on the CAN node, entering a step 7; if the instruction is not executable, go to step 12;
step 6: diagnosing the domain controller, and entering the step 10;
and 7: issuing a diagnosis instruction to the CAN/CANFD Node, and entering step 8;
and 8: the CAN/CANFD Node judges whether the instruction CAN be executed. If yes, executing step 9, and if not, executing step 12;
and step 9: the CAN/CANFD Node responds to the diagnosis and returns the diagnosis data to the Eth Node, and the step 10 is entered;
step 10: eth Node returns diagnostic data to TBOX, and step 11 is carried out;
step 11: TBOX returns diagnostic data to TSP, and step 1 is carried out;
step 12: and returning an error code to the TSP, and entering the step 1.
As mentioned above, the reminder system of the present invention is not limited to the configuration, and other systems capable of implementing the embodiments of the present invention may fall within the protection scope of the present invention.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (10)
1. A vehicle remote diagnosis method based on SOA service is characterized by comprising the following steps:
step 1: the vehicle-mounted terminal sends a request for remote diagnosis to the TSP;
step 2: after receiving the request, the TSP sends a diagnosis instruction to the TBOX;
and step 3: TBOX judges whether the diagnosis instruction is executed; if yes, performing step 4; if not, returning an error code to the TSP, and simultaneously prompting that the vehicle-mounted terminal cannot carry out remote diagnosis;
and 4, step 4: the TBOX diagnoses the corresponding target controller according to the type of the diagnosis instruction;
and 5: and after the TBOX is diagnosed, feeding back diagnosis result data to the TSP.
2. A SOA service-based vehicle remote diagnosis method as claimed in claim 1, wherein, in step 2, the TSP calls a remote control interface to send a diagnosis instruction to TBOX based on MQTT protocol.
3. The SOA service-based vehicle remote diagnosis method as claimed in claim 2, wherein in step 2, after the TBOX receives the diagnosis instruction sent by the TSP, the MQTT protocol is converted into a DDS, the DDS service is used to invoke the diagnosis service, and the diagnosis instruction is sent to the corresponding domain controller.
4. A vehicle remote diagnosis method based on SOA service as claimed in claim 1, wherein in step 4, TBOX receives and parses the diagnosis command sent by TSP, and diagnoses the corresponding target controller according to the IP address and controller logic address in the DoIP message.
5. A vehicle remote diagnosis method based on SOA service in claim 4 wherein in step 4, the vehicle-mounted controller terminal is used for responding to the diagnosis request issued by the Ethernet node at TBOX.
6. The vehicle remote diagnosis method based on SOA service according to claim 6, wherein the vehicle-mounted controller terminal diagnoses itself and feeds back the diagnosis result to TBOX.
7. A vehicle remote diagnosis method based on SOA service as claimed in claim 4, wherein in step 4, the vehicle controller terminal acts as a diagnosis gateway for the off-hook CAN/CANFD node, and sends the diagnosis request to the corresponding target controller through the CAN/CANFD node, and the target controller responds to the diagnosis request sent by the CAN node at TBOX.
8. The SOA service-based vehicle remote diagnosis method according to claim 7, wherein the on-board controller terminal converts a DoIP message transmitted from a CAN node at a TBOX into a DoCAN message and transmits the DoCAN message to a corresponding CAN/CANFD node.
9. A vehicle remote diagnosis method based on SOA service as claimed in claim 1, wherein in step 5, the diagnosis result is in domain control of TBOX, via DDS service, the data collection center is invoked, the data collection center uploads the data to the data upload module via DDS, and feeds back to TSP via MQTT.
10. A vehicle remote diagnosis system based on SOA service is characterized by comprising a TSP, a TBOX and a vehicle-mounted controller terminal;
the TSP is used as a main body for remotely reading the diagnostic data and is used for receiving a remote diagnostic request, sending a remote diagnostic instruction to the TBOX and receiving and analyzing the diagnostic data uploaded by the TBOX;
the TBOX is used for judging the current vehicle state, judging whether the current vehicle state can be diagnosed or not, feeding back an error code corresponding to the TSP if the current vehicle state cannot be diagnosed, and giving a prompt that diagnosis cannot be performed at the vehicle-mounted terminal; meanwhile, the TBOX is used for receiving and analyzing a diagnosis instruction issued by the TSP, and diagnosing a target controller corresponding to the TSP according to the IP address and the controller logic address in the DoIP message; after the diagnosis is completed, the TBOX feeds back the diagnosis result data to the TSP;
the vehicle-mounted controller terminal is used as a diagnosed target controller and used for responding to a diagnosis request sent by the Ethernet node at TBOX; meanwhile, the vehicle-mounted controller terminal is used as a diagnosis gateway for hanging the CAN and CANFD nodes, and is used for converting a DoIP message sent by the CAN Node of the TBOX into a DoCAN message and sending the DoCAN message to the CAN/CANFD Node corresponding to the CAN/CANFD Node, and the CAN/CANFD Node corresponding to the CAN/CANFD Node is used as a diagnosed target controller, responds to a diagnosis request sent by the TBOX, diagnoses the CAN/CANFD Node and feeds back a diagnosis result.
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