CN112965463B - Remote diagnosis system and remote diagnosis method - Google Patents
Remote diagnosis system and remote diagnosis method Download PDFInfo
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- CN112965463B CN112965463B CN202110176851.1A CN202110176851A CN112965463B CN 112965463 B CN112965463 B CN 112965463B CN 202110176851 A CN202110176851 A CN 202110176851A CN 112965463 B CN112965463 B CN 112965463B
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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
- G05B23/0208—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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- 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 provides a remote diagnosis system and a remote diagnosis method, wherein the remote diagnosis system comprises an interaction device, virtual OBD equipment, a cloud server, vehicle-side OBD equipment and diagnosed equipment, one end of the virtual OBD equipment is connected with the interaction device to receive a diagnosis instruction or send a diagnosis response, and the other end of the virtual OBD equipment is connected with the cloud server to send an OTA instruction packet or receive an OTA response packet; one end of the OBD device at the vehicle end is connected with the cloud server to receive the OTA instruction packet or send the OTA response packet, and the other end of the OBD device at the vehicle end is connected with the diagnosed device to send the diagnosis instruction or receive the diagnosis response. The invention realizes that the interactive device sends the diagnosis instruction and obtains the diagnosis response through the cloud server and carries out corresponding processing on the diagnosed equipment in time.
Description
Technical Field
The invention relates to a remote diagnosis system and a remote diagnosis method, and belongs to the technical field of automobile remote diagnosis.
Background
At present, most of equipment diagnosis systems are based on the field, the diagnosis systems are relatively closed, fault diagnosis, maintenance and calibration are limited by manpower, cost, regions and the like, and the limitation directly influences the diagnosis timeliness and the satisfaction degree of customers.
With the development of computer technology and communication technology, the remote diagnosis system can well solve the problem that the diagnosed object and the engineering after-sale personnel are in different places, thoroughly breaks the boundary of regions, and transmits information through connection of a 4G or 5G network. The remote diagnosis system realizes the acquisition of diagnosis information and timely response by accessing a network server.
Disclosure of Invention
The invention aims to provide a remote diagnosis system and a remote diagnosis method, which can carry out traditional UDS diagnosis on a remote vehicle, have low development difficulty, are simple and efficient, do not need to change use habits by users and support any existing diagnosis equipment.
In order to achieve the above object, the present invention provides a remote diagnosis system, which includes an interaction device, an OBD port mapping system and a diagnosed device;
the OBD port mapping system comprises virtual OBD equipment, a cloud server and vehicle-side OBD equipment, wherein one end of the virtual OBD equipment is connected with the interaction device so as to receive the diagnosis instruction sent by the interaction device and pack the diagnosis instruction into an OTA instruction packet, and the other end of the virtual OBD equipment is connected with the cloud server so as to send the OTA instruction packet to the cloud server;
one end of the vehicle-end OBD device is connected with the cloud server to receive an OTA instruction packet sent by the cloud server and split the OTA instruction packet into diagnosis instructions to be classified, and the other end of the vehicle-end OBD device is connected with the diagnosed device to send the classified diagnosis instructions to the diagnosed device to be diagnosed.
As a further improvement of the present invention, the vehicle-side OBD device is further configured to receive a diagnosis response sent by the diagnosed device and package the diagnosis response into an OTA response packet, and send the OTA response packet to the cloud server; the virtual OBD equipment is further used for receiving an OTA response packet sent by the cloud server, splitting the OTA response packet into diagnosis responses and sending the diagnosis responses to the interaction device.
As a further improvement of the invention, the interaction device is connected with the virtual OBD equipment through an external tool to transmit a diagnosis instruction or receive a diagnosis response; the vehicle-end OBD device is connected with the diagnosed device through an OBD port so as to transmit a diagnosis instruction or receive a diagnosis response; the virtual OBD device and the cloud server and the vehicle-side OBD device are connected through 4G or 5G networks to transmit OTA instruction packets or receive OTA response packets.
As a further improvement of the present invention, the interactive device is provided with an interactive interface, and the interactive interface is used for displaying the diagnosis result; the diagnostic equipment is provided with a gateway module for diagnosis, and the vehicle-end OBD equipment is connected with the gateway module through an OBD port and transmits a diagnostic instruction or a diagnostic response.
In order to achieve the above object, the present invention further provides a remote diagnosis method applied to the remote diagnosis system, including the following steps:
step 1, connecting one end of a virtual OBD device with an interactive device, and connecting the other end of the virtual OBD device with a cloud server; one end of the OBD device at the vehicle end is connected with the cloud server, and the other end of the OBD device at the vehicle end is connected with the diagnosed device;
step 2, the interactive device sends a diagnosis instruction to the virtual OBD equipment;
step 3, the virtual OBD equipment packages the diagnosis instruction into an OTA instruction package and sends the OTA instruction package to the cloud server;
step 4, the cloud server receives the OTA instruction packet and then sends the OTA instruction packet to the vehicle-end OBD device;
step 5, the vehicle-end OBD device splits the OTA instruction packet into diagnosis instructions and sends the diagnosis instructions to a gateway module of the diagnosed device;
step 6, the gateway module diagnoses the diagnosed equipment and feeds back a diagnosis response to the vehicle-end OBD equipment;
step 7, the vehicle-end OBD device packages the diagnosis response into an OTA response packet and feeds the OTA response packet back to the cloud server;
step 8, the cloud server feeds an OTA response packet back to the virtual OBD device after receiving the OTA response packet;
and 9, the virtual OBD equipment splits the OTA response packet into diagnosis responses and transmits the diagnosis responses to the interaction device.
As a further improvement of the present invention, in step 1: virtual OBD equipment with the high in the clouds server passes through 4G or 5G internet access, the high in the clouds server with car end OBD equipment passes through 4G or 5G internet access, virtual OBD equipment, high in the clouds server and car end OBD equipment are connected and are accomplished the back and log in authentication, register car end OBD equipment and transmit the UDS instruction through the OTA agreement, the high in the clouds server passes through register car end OBD equipment and acquire the VIN sign indicating number of being diagnosed the equipment.
As a further improvement of the present invention, step 2 specifically comprises: the interaction device sends a multi-frame or single-frame diagnosis instruction to the virtual OBD equipment through an external tool, the virtual OBD equipment simulates a UDS slave control end to send flow control feedback to the interaction device, and the interaction device receives the flow control feedback and then sends the diagnosis instruction of continuous frames to the virtual OBD equipment.
As a further improvement of the present invention, step 3 specifically is: the step 3 specifically comprises the following steps: the virtual OBD equipment packages the diagnosis instruction of the continuous frame into an OTA instruction packet after receiving the diagnosis instruction of the continuous frame, and sends the OTA instruction packet to the cloud server and simultaneously sends a delay instruction to the interaction device.
As a further improvement of the present invention, step 5 specifically comprises: the OBD device at the vehicle end simulates a UDS main control end to split an OTA instruction packet to obtain a diagnosis instruction, classifies the diagnosis instruction according to CAN TP, and then sends the classified diagnosis instruction to a gateway module of the diagnosed device.
As a further improvement of the invention, the interaction device is a PC terminal or a diagnostic apparatus, the diagnosed device is a vehicle, the delay instruction is a feedback 78 instruction, and the external tool is a Pcan, a Spy3 or a Canoe.
The beneficial effects of the invention are: according to the remote diagnosis system and the remote diagnosis method, the virtual OBD device is used for simulating the function of the UDS slave control end, the vehicle-end OBD device is used for simulating the function of the UDS master control end, the virtual OBD device and the vehicle-end OBD device are connected through the 4G/5G network and transmit the OTA command packet or the OTA response packet, the feedback 78 command is used for solving the problem of network delay caused by forwarding of the cloud server, and the interaction device is used for sending a diagnosis command and obtaining a diagnosis response through the cloud server and timely performing corresponding processing on the diagnosed device.
Drawings
FIG. 1 is a block diagram of a remote diagnostic system according to the present invention.
Fig. 2 is a timing diagram of OBD port mapping for the remote diagnostic method of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present invention discloses a remote diagnosis system and a remote diagnosis method, the remote diagnosis system mainly includes an interaction device, an On-Board Diagnostics (OBD) port mapping system and a diagnosed device, wherein The OBD port mapping system includes a virtual OBD device, a cloud server and a vehicle-side OBD device, one end of The virtual OBD device is connected to The interaction device through an external tool to receive a diagnosis instruction sent by The interaction device and package The diagnosis instruction into an OTA (Over The Air transmission technology) instruction packet or send a diagnosis response to The interaction device, and The other end of The virtual OBD device is connected to The cloud server to send The OTA instruction packet to The cloud server or receive an OTA response packet sent by The cloud server and split The OTA response packet into The diagnosis response.
One end of the vehicle-end OBD device is connected with the cloud server to receive an OTA instruction packet sent by the cloud server and split the OTA instruction packet into diagnosis instructions to be classified or send an OTA response packet to the cloud server, and the other end of the vehicle-end OBD device is connected with the diagnosed device through an OBD port, sends the classified diagnosis instructions to the diagnosed device or receives a diagnosis response sent by the diagnosed device and packages the diagnosis response into the OTA response packet.
The virtual OBD device is connected with the cloud server through a 4G or 5G network, and the cloud server is connected with the vehicle-side OBD device through a 5G network, and an OTA instruction packet or an OTA response packet is transmitted. The interactive device is provided with an interactive interface, the interactive interface is used for displaying a diagnosis result, the diagnosed equipment is provided with a gateway module for diagnosis, and the vehicle-end OBD equipment is connected with the gateway module and transmits a diagnosis instruction or a diagnosis response. In this embodiment, the interaction device is set as a PC end or a diagnostic apparatus, the diagnosed device is a vehicle, the external tool is a Pcan, spy3 or a cancer, and the interaction interface is a PC end interface or an interface based on the Pcan, spy3 or the cancer, but not limited thereto, as long as the purpose of information transmission and interface display between the interaction device and the diagnosed device is achieved, where the Pcan, spy3 or the cancer is a standard tool commonly used in the industry, and therefore, detailed description thereof is omitted here.
Referring to fig. 2, the remote diagnosis method includes the following steps:
step 1, connecting one end of a virtual OBD device with an interactive device, and connecting the other end of the virtual OBD device with a cloud server; connecting one end of the OBD equipment at the vehicle end with a cloud server, and connecting the other end of the OBD equipment at the vehicle end with the equipment to be diagnosed;
mutual device passes through the external instrument with virtual OBD equipment and is connected, virtual OBD equipment passes through 4G or 5G network and is connected with the high in the clouds server establishment, the high in the clouds server is connected through 4G or 5G network with car end OBD equipment, by being provided with gateway module on the Diagnostic equipment, car end OBD equipment passes through the OBD port and is connected with gateway module realization, log in the authentication through the OTA agreement after each equipment connection is accomplished, register car end OBD equipment and transmission UDS (Unified Diagnostic Services) instruction. The cloud server acquires a VIN (vehicle identification number) code of the diagnosed device through the registered vehicle-side OBD device, sends the diagnosis instruction to the corresponding vehicle according to the VIN code information of the vehicle, and sends the diagnosis response to the virtual OBD device through the cloud server.
Step 2, the interactive device sends a diagnosis instruction to the virtual OBD equipment;
the interaction device sends the single-frame or multi-frame diagnosis instruction to the virtual OBD equipment through an external tool (Pcan, spy3 or Canoe), the virtual OBD equipment simulates a UDS slave control end to respond, the responding mode is that the virtual OBD equipment sends flow control feedback to the interaction device after receiving the single-frame or multi-frame diagnosis instruction, and the interaction device sends the diagnosis instruction of continuous frames after receiving the flow control feedback.
Step 3, the virtual OBD device packages the diagnosis instruction into an OTA instruction package and sends the OTA instruction package to the cloud server;
the virtual OBD equipment packages the complete continuous frame diagnosis instruction into an OTA instruction packet after receiving the complete continuous frame diagnosis instruction, the virtual OBD equipment sends the OTA instruction packet to the cloud server through a 4G/5G network, meanwhile, the virtual OBD equipment sends a delay instruction to the interaction device, the interaction device is enabled to wait for the diagnosis instruction request and response, and network delay during forwarding through the cloud server is solved through the delay instruction.
Communication between the virtual OBD equipment and the cloud server is provided with overtime processing, when the time limit is exceeded, if the same instruction is received, the previous instruction is discarded, and meanwhile, a sender (the virtual OBD equipment) sends negative feedback to the previous equipment (the interaction device).
Step 4, the cloud server sends the OTA instruction packet to the vehicle-end OBD device after receiving the OTA instruction packet;
step 5, the vehicle-end OBD device splits the OTA command packet into diagnosis commands and sends the diagnosis commands to a gateway module of the diagnosed device;
the OBD device simulates a UDS main control end to receive an OTA instruction packet, splits the OTA instruction packet after the OTA instruction packet is completely received to obtain a diagnosis instruction, classifies the diagnosis instruction according to CAN TP, and sends the classified diagnosis instruction to a gateway module corresponding to the diagnosis device, wherein the CAN TP is a tool which is commonly used in the industry and used for recombining and classifying data, and the tool is not described in detail here.
The vehicle-end OBD device sends a single-frame or multi-frame diagnosis instruction to the gateway module through the OBD port, the gateway module responds, the response mode is that the gateway module sends flow control feedback to the vehicle-end OBD device after receiving the single-frame or multi-frame diagnosis instruction, and the vehicle-end OBD device sends continuous-frame diagnosis instructions after receiving the flow control feedback.
Step 6, the gateway module diagnoses the diagnosed equipment and feeds back a diagnosis response to the vehicle-end OBD equipment;
and the gateway module of the diagnosed equipment diagnoses the vehicle after receiving the corresponding diagnosis instruction, forms a diagnosis response after the diagnosis is finished, and feeds back the diagnosis response to the vehicle-end OBD equipment through the OBD port.
The gateway module feeds back the diagnosis response of single frame or multiple frames to the vehicle-end OBD device through the OBD port, the vehicle-end OBD device simulates the UDS main control end to respond, the responding mode is that the vehicle-end OBD device sends flow control feedback to the gateway module after receiving the diagnosis response of the single frame or multiple frames, and the gateway module sends the diagnosis response of continuous frames after receiving the flow control feedback.
Step 7, the vehicle-end OBD device packages the diagnosis response into an OTA response packet and feeds the OTA response packet back to the cloud server;
the vehicle-end OBD device simulates a UDS main control end to pack a diagnosis response into an OTA response packet, and feeds the OTA response packet back to the cloud server through a 4G or 5G network, wherein overtime processing is arranged for communication between the vehicle-end OBD device and the cloud server, when the time limit is exceeded, if the same instruction is received, the previous instruction is discarded, and meanwhile, a sender (the vehicle-end OBD device) sends negative feedback to inform the previous device (the diagnosed device).
Step 8, the cloud server feeds the OTA response packet back to the virtual OBD equipment after receiving the OTA response packet;
and 9, the virtual OBD equipment splits the OTA response packet into diagnosis responses and transmits the diagnosis responses to the interaction device.
The virtual OBD device simulates the UDS slave control end to split an OTA response packet to obtain a diagnosis response, and feeds the diagnosis response back to the interaction device through an external tool, during feedback, the virtual OBD device feeds the diagnosis response of a single frame or multiple frames back to the interaction device through the external tool, the interaction device responds, the response mode is that the interaction device sends flow control feedback to the virtual OBD device after receiving the diagnosis response of the single frame or multiple frames, and the virtual OBD device sends the diagnosis response of continuous frames after receiving the flow control feedback. And completing the remote diagnosis operation of the vehicle.
In other words, the interactive device in the remote diagnosis method sends a diagnosis instruction to the virtual OBD equipment through an external tool; the virtual OBD device simulates a UDS slave control end to pack the diagnosis instruction into an OTA instruction packet and sends the OTA instruction packet to a cloud server through a 4G or 5G network; the cloud server sends the OTA instruction packet to the vehicle-end OBD device; the OBD device at the vehicle end simulates a UDS main control end to split an OTA instruction packet and classify diagnosis instructions through CAN TP, and the classified diagnosis instructions are sent to corresponding gateway modules through OBD ports; the gateway module diagnoses the vehicle according to the diagnosis instruction to obtain a diagnosis response, and feeds the diagnosis response back to the vehicle-end OBD equipment through the OBD port; the vehicle-end OBD device simulates a UDS main control end to pack the diagnosis response into an OTA response packet and feeds the OTA response packet back to the cloud server through a 4G or 5G network; the cloud server feeds the OTA response packet back to the virtual OBD equipment through a 4G or 5G network; and the virtual OBD equipment simulates the UDS slave control end to split the OTA response packet and feeds the split OTA response packet back to the interaction device through an external tool to finish the remote diagnosis of the diagnosed equipment.
When the diagnosis instruction request and the response cannot meet the delay requirement, the virtual OBD equipment feeds back 78 instructions to the interaction device for delay processing so as to solve network delay caused by forwarding through the cloud server; the communication between the virtual OBD device and the cloud server, the communication between the cloud server and the vehicle-side OBD device are provided with timers, after the timers are overtime, if a second instruction which is the same as the first instruction is received, the first instruction is discarded, a sender sends negative feedback to the previous device, and the sender comprises the virtual OBD device which sends a diagnosis instruction or the vehicle-side OBD device which sends a diagnosis response.
In summary, the remote diagnosis system and the remote diagnosis method provided by the invention realize remote diagnosis of the vehicle by simulating and mapping the vehicle-side OBD device to a remote position and connecting the cloud server with the virtual OBD device, and solve the problem of network delay caused by forwarding through the cloud server by feeding back 78 instructions.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. A remote diagnostic system, characterized by: the system comprises an interaction device, an OBD port mapping system and a diagnosed device;
the OBD port mapping system comprises virtual OBD equipment, a cloud server and vehicle-side OBD equipment, wherein the virtual OBD equipment simulates the function of a slave control end of the UDS, the vehicle-side OBD equipment simulates the function of a master control end of the UDS, one end of the virtual OBD equipment is connected with an interaction device to receive a diagnosis instruction sent by the interaction device and package the diagnosis instruction into an OTA instruction packet, the other end of the virtual OBD equipment is connected with the cloud server to send the OTA instruction packet to the cloud server, and meanwhile, the virtual OBD equipment sends a delay instruction to the interaction device to enable the interaction device to wait for the request and response of the diagnosis instruction;
one end of car end OBD equipment is connected with the high in the clouds server to receive the OTA instruction package that the high in the clouds server sent and become diagnosis instruction with OTA instruction package split and classify, the other end with by the diagnostic equipment connection, car end OBD equipment passes through the OBD port and sends single frame or multiframe diagnosis instruction for by the diagnostic equipment, responded by the diagnostic equipment, the answer mode is that send the flow control to feed back after single frame or multiframe diagnosis instruction is received by the diagnostic equipment car end OBD equipment, car end OBD equipment sends the diagnosis instruction of continuous frame after receiving the flow control feedback, in order to send the diagnosis instruction of categorised completion to by the diagnostic equipment and diagnose.
2. The remote diagnostic system of claim 1, wherein: the vehicle-end OBD device is also used for receiving the diagnosis response sent by the diagnosed device, packaging the diagnosis response into an OTA response packet and sending the OTA response packet to the cloud server; the virtual OBD equipment is further used for receiving an OTA response packet sent by the cloud server, splitting the OTA response packet into diagnosis responses and sending the diagnosis responses to the interaction device.
3. The remote diagnostic system of claim 2, wherein: the interactive device is connected with the virtual OBD equipment through an external tool so as to transmit a diagnosis instruction or receive a diagnosis response; the vehicle-end OBD device is connected with the diagnosed device through an OBD port so as to transmit a diagnosis instruction or receive a diagnosis response; the virtual OBD device and the cloud server and the vehicle-side OBD device are connected through 4G or 5G networks to transmit OTA instruction packets or receive OTA response packets.
4. The remote diagnostic system of claim 3, wherein: the interactive device is provided with an interactive interface, and the interactive interface is used for displaying the diagnosis result; the diagnostic equipment is provided with a gateway module for diagnosis, and the vehicle-end OBD equipment is connected with the gateway module through an OBD port and transmits a diagnostic instruction or a diagnostic response.
5. A remote diagnosis method applied to the remote diagnosis system according to any one of claims 1 to 4, comprising the steps of:
step 1, connecting one end of a virtual OBD device with an interactive device, and connecting the other end of the virtual OBD device with a cloud server; connecting one end of the OBD equipment at the vehicle end with a cloud server, and connecting the other end of the OBD equipment at the vehicle end with the equipment to be diagnosed;
step 2, the interactive device sends a diagnosis instruction to the virtual OBD equipment;
step 3, the virtual OBD equipment packages the diagnosis instruction into an OTA instruction packet and sends the OTA instruction packet to the cloud server, and the virtual OBD equipment sends a delay instruction to the interaction device to enable the interaction device to wait for the diagnosis instruction request and response;
communication between the virtual OBD equipment and the cloud server is provided with overtime processing, and after time limit is exceeded, if the virtual OBD equipment receives the same diagnosis instruction, the previous diagnosis instruction is discarded, and meanwhile, the virtual OBD equipment sends negative feedback to the interaction device;
step 4, the cloud server sends the OTA instruction packet to the vehicle-end OBD device after receiving the OTA instruction packet;
step 5, the vehicle-end OBD device splits the OTA command packet into diagnosis commands and sends the diagnosis commands to a gateway module of the diagnosed device;
step 6, the gateway module diagnoses the diagnosed equipment and feeds back a diagnosis response to the vehicle-end OBD equipment;
step 7, the vehicle-end OBD device packages the diagnosis response into an OTA response packet and feeds the OTA response packet back to the cloud server, overtime processing is set for communication between the vehicle-end OBD device and the cloud server, when the time limit is exceeded, if the vehicle-end OBD device receives the same diagnosis response, the previous diagnosis response is discarded, and meanwhile, the vehicle-end OBD device sends negative feedback to inform the diagnosed device;
step 8, the cloud server feeds an OTA response packet back to the virtual OBD device after receiving the OTA response packet;
and 9, the virtual OBD equipment splits the OTA response packet into diagnosis responses and transmits the diagnosis responses to the interaction device.
6. The remote diagnosis method according to claim 5, wherein in step 1: virtual OBD equipment with the high in the clouds server passes through 4G or 5G internet access, the high in the clouds server with car end OBD equipment passes through 4G or 5G internet access, virtual OBD equipment, high in the clouds server and car end OBD equipment are connected and are accomplished the back and log in authentication, register car end OBD equipment and transmit the UDS instruction through the OTA agreement, the high in the clouds server passes through register car end OBD equipment and acquire the VIN sign indicating number of being diagnosed the equipment.
7. The remote diagnosis method according to claim 6, wherein step 2 is specifically: the interaction device sends a multi-frame or single-frame diagnosis instruction to the virtual OBD equipment through an external tool, the virtual OBD equipment simulates a UDS slave control end to send flow control feedback to the interaction device, and the interaction device receives the flow control feedback and then sends the diagnosis instruction of continuous frames to the virtual OBD equipment.
8. The remote diagnosis method according to claim 7, wherein step 3 is specifically: the virtual OBD equipment receives the diagnosis instruction of the continuous frame and packages the diagnosis instruction of the continuous frame into an OTA instruction packet, and the virtual OBD equipment sends the OTA instruction packet to the cloud server and sends a delay instruction to the interaction device.
9. The remote diagnosis method according to claim 8, wherein step 5 is specifically: and the vehicle-end OBD device simulates a UDS main control end to split an OTA instruction packet to obtain a diagnosis instruction, classifies the diagnosis instruction according to the CAN TP, and then sends the classified diagnosis instruction to a gateway module of the diagnosed device.
10. The remote diagnosis method according to claim 9, wherein: the interactive device is a PC end or a diagnostic instrument, the diagnosed equipment is a vehicle, the delay instruction is a feedback 78 instruction, and the external tool is a Pcan, a Spy3 or a Canoe.
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| CN107479525B (en) * | 2016-12-23 | 2019-09-20 | 宝沃汽车（中国）有限公司 | Vehicle remote diagnosis system and its control method |
| CN106990773A (en) * | 2017-03-30 | 2017-07-28 | 深圳市元征科技股份有限公司 | vehicle remote diagnosis method, cloud server and system |
| CN109873733B (en) * | 2017-12-05 | 2022-05-27 | 上海欧菲智能车联科技有限公司 | Automobile bus communication method and system, remote terminal and automobile diagnosis equipment |
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