CN108803582B - Automatic bus switching system and method suitable for remote fault diagnosis - Google Patents
Automatic bus switching system and method suitable for remote fault diagnosis Download PDFInfo
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- CN108803582B CN108803582B CN201810947284.3A CN201810947284A CN108803582B CN 108803582 B CN108803582 B CN 108803582B CN 201810947284 A CN201810947284 A CN 201810947284A CN 108803582 B CN108803582 B CN 108803582B
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- 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
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- G05B2219/24065—Real time diagnostics
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Abstract
The invention discloses a bus automatic switching system and a method suitable for remote fault diagnosis, wherein the system comprises an application terminal, a middleware, a configuration library and a diagnosis box; the application terminal is connected with the middleware and used for selecting a new ECU model to be diagnosed; the middleware is used for acquiring communication configuration corresponding to the ECU model from the configuration library according to the ECU model; the middleware is also used for connecting a CAN channel based on the communication configuration and sending a connection instruction to the diagnosis box so as to access a CAN data channel; and the diagnosis box is used for feeding back the connection state to the middleware according to the connection instruction so as to enable the middleware to feed back the connection state to the application terminal. The invention can realize remote fault diagnosis of various vehicle types by switching between buses.
Description
Technical Field
The invention relates to the technical field of vehicle maintenance, in particular to a bus automatic switching system and method suitable for remote fault diagnosis.
Background
The existing remote diagnosis technology generally needs to know the protocol of communication with the bottom hardware clearly to communicate with the bottom hardware and obtain related information, such as collecting automobile fault codes, and needs to know the specific protocol of related automobile models, which are not willing to be disclosed by manufacturers and relate to technical confidentiality of the manufacturers. Therefore, how to separate the protocol from the software not only realizes remote fault diagnosis, but also can meet the confidentiality requirement of the manufacturer on the protocol, and becomes the current research focus.
Disclosure of Invention
The embodiment of the invention provides a bus automatic switching system and a bus automatic switching method suitable for remote fault diagnosis, which can realize remote fault diagnosis of various vehicle types through switching among buses.
In order to solve the above problems, an embodiment of the present invention provides an automatic bus switching system suitable for remote fault diagnosis, including an application terminal, middleware, a configuration library, and a diagnosis box; wherein the content of the first and second substances,
the application terminal is connected with the middleware and used for selecting a new ECU model to be diagnosed;
the middleware is used for acquiring communication configuration corresponding to the ECU model from the configuration library according to the ECU model;
the middleware is also used for connecting a CAN channel based on the communication configuration and sending a connection instruction to the diagnosis box so as to access a CAN data channel;
and the diagnosis box is used for feeding back the connection state to the middleware according to the connection instruction so as to enable the middleware to feed back the connection state to the application terminal.
Further, the diagnostic box supports 4 CAN channels and 2K lines, and stores a program for controlling access to the corresponding data channel.
Further, the application terminal is connected with the middleware through a JNI interface, and the middleware is connected with the diagnosis box through a USB/TCP interface.
Further, the middleware is specifically configured to obtain, according to the ECU model, a communication configuration corresponding to the ECU model from the configuration library by using SQL/data rules; wherein the content of the first and second substances,
the middleware comprises an ECU communication diagnosis protocol and an ECU instruction execution program;
the communication configuration comprises an ECU model configuration table, an ECU configuration table, vehicle internal information and an instruction set table, wherein the vehicle internal information comprises a vehicle model table, a basic information table, a whole vehicle information table, a fault code table, a parameter table and a test table.
Further, the diagnosis kit further comprises an ECU, and the ECU is connected with the diagnosis kit through a CAN channel or a K line.
Another embodiment of the present invention further provides an automatic bus switching method suitable for remote fault diagnosis, which is suitable for being executed in a computer device, and at least includes the following steps:
the application terminal transmits the ECU model to the middleware according to the selected new ECU model to be diagnosed;
the middleware acquires communication configuration corresponding to the ECU model from a configuration library according to the ECU model;
the middleware is connected with the CAN channel based on the communication configuration and sends a connection instruction to the diagnosis box so as to access the CAN data channel;
and the diagnostic box feeds back the connection state to the middleware according to the connection instruction, so that the middleware feeds back the connection state to the application terminal.
Further, the diagnosis box supports 4 paths of CAN channels and 2 paths of K lines, and stores programs for controlling access to corresponding data channels; wherein, the diagnosis box is connected with the ECU through a CAN channel or a K line.
Further, the application terminal is connected with the middleware through a JNI interface, and the middleware is connected with the diagnosis box through a USB/TCP interface.
Further, the middleware acquires, according to the ECU model, a communication configuration corresponding to the ECU model from a configuration library, specifically:
according to the ECU model, acquiring communication configuration corresponding to the ECU model from the configuration library through SQL/data rules; wherein the content of the first and second substances,
the middleware comprises an ECU communication diagnosis protocol and an ECU instruction execution program;
the communication configuration comprises an ECU model configuration table, an ECU configuration table, vehicle internal information and an instruction set table, wherein the vehicle internal information comprises a vehicle model table, a basic information table, a whole vehicle information table, a fault code table, a parameter table and a test table.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a bus automatic switching system and a method suitable for remote fault diagnosis, wherein the system comprises an application terminal, a middleware, a configuration library and a diagnosis box; the application terminal is connected with the middleware and used for selecting a new ECU model to be diagnosed; the middleware is used for acquiring communication configuration corresponding to the ECU model from the configuration library according to the ECU model; the middleware is also used for connecting a CAN channel based on the communication configuration and sending a connection instruction to the diagnosis box so as to access a CAN data channel; and the diagnosis box is used for feeding back the connection state to the middleware according to the connection instruction so as to enable the middleware to feed back the connection state to the application terminal. The invention can realize remote fault diagnosis of various vehicle types by switching between buses.
Drawings
Fig. 1 is a schematic structural diagram of a bus automatic switching system suitable for remote fault diagnosis according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of another bus automatic switching system suitable for remote fault diagnosis according to the first embodiment of the present invention;
fig. 3 is a schematic flowchart of a bus automatic switching method suitable for remote fault diagnosis according to a first embodiment of the present invention;
fig. 4 is a flowchart illustrating a bus automatic switching method suitable for remote fault diagnosis according to a second embodiment of 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.
First, application scenarios, such as remote fault diagnosis, that can be provided by the present invention are described.
The existing remote diagnosis technology generally needs to know the protocol of communication with the bottom hardware clearly to communicate with the bottom hardware and obtain related information, such as collecting automobile fault codes, and needs to know the specific protocol of related automobile models, which are not willing to be disclosed by manufacturers and relate to technical confidentiality of the manufacturers. The invention provides a bus automatic switching system and a bus automatic switching method suitable for remote fault diagnosis, which can realize remote fault diagnosis of various vehicle types through switching among buses.
The first embodiment of the present invention:
see fig. 1, 2 and 3.
As shown in fig. 1, the present embodiment provides an automatic bus switching system suitable for remote fault diagnosis, including: the application terminal 100, the middleware 200, the configuration library 300, and the diagnosis box 400; wherein the content of the first and second substances,
the application terminal 100 is connected with the middleware 200 and is used for selecting a new ECU model to be diagnosed;
the middleware 200 is configured to obtain, according to the ECU model, the communication configuration corresponding to the ECU model from the configuration library 300;
preferably, the middleware 200 is further configured to connect a CAN channel based on the communication configuration and send a connection command to the diagnostic box 400 to access a CAN data channel;
the diagnostic box 400 is configured to feed back a connection status to the middleware 200 according to the connection instruction, so that the middleware 200 feeds back the connection status to the application terminal 100.
Preferably, the diagnostic box 400 supports 4 CAN channels and 2K lines and stores a program for controlling access to the corresponding data channel.
Preferably, the application terminal 100 is connected to the middleware 200 through a JNI interface, and the middleware is connected to the diagnostic box 400 through a USB/TCP interface.
Preferably, the middleware 200 is specifically configured to obtain, according to the ECU model, a communication configuration corresponding to the ECU model from the configuration library 300 through SQL/data rules; wherein the content of the first and second substances,
the middleware 200 itself includes an ECU communication diagnostic protocol and an ECU instruction execution program;
the communication configuration comprises an ECU model configuration table, an ECU configuration table, vehicle internal information and an instruction set table, wherein the vehicle internal information comprises a vehicle model table, a basic information table, a whole vehicle information table, a fault code table, a parameter table and a test table.
Preferably, the diagnostic kit further comprises an ECU connected with the diagnostic kit 400 through a CAN channel or a K-wire.
It can be understood that, as shown in fig. 2, another bus automatic switching system suitable for remote fault diagnosis provided by this embodiment has the following structure: combining the middleware with the configuration library, and realizing communication between the middleware and the bottom hardware diagnosis box and the background database; the middleware itself includes protocol and flow information. (the protocol is ECU communication diagnosis protocol, the flow refers to ECU instruction execution step); a configuration library (database) integrates all the machine types into a set of configuration table, and the configuration library comprises information such as an ECU model configuration table, an ECU configuration table, vehicle internal information (a vehicle type table, a basic information table, a whole vehicle information table, a fault code table, a parameter table and a test table), an instruction set table and the like; the chip of the diagnosis box supports 4 paths of CAN and 2 paths of K lines, the middleware instruction informs a diagnosis box program, and the diagnosis box program controls access to a corresponding data channel, so that switching among buses is realized.
The system for automatically switching the buses, which is suitable for remote fault diagnosis, provided by the embodiment comprises an application terminal, a middleware, a configuration library and a diagnosis box; the application terminal is connected with the middleware and used for selecting a new ECU model to be diagnosed; the middleware is used for acquiring communication configuration corresponding to the ECU model from the configuration library according to the ECU model; the middleware is also used for connecting a CAN channel based on the communication configuration and sending a connection instruction to the diagnosis box so as to access a CAN data channel; and the diagnosis box is used for feeding back the connection state to the middleware according to the connection instruction so as to enable the middleware to feed back the connection state to the application terminal. The invention can realize remote fault diagnosis of various vehicle types by switching between buses.
Second embodiment of the invention:
see fig. 4.
As shown in fig. 4, the present embodiment provides an automatic bus switching method suitable for remote fault diagnosis, which is suitable for being executed in a computer device, and at least includes the following steps:
s201, the application terminal transmits the ECU model to the middleware according to the selected new ECU model to be diagnosed;
s202, the middleware acquires communication configuration corresponding to the ECU model from a configuration library according to the ECU model;
s203, the middleware is connected with the CAN channel based on the communication configuration and sends a connection instruction to the diagnosis box so as to access the CAN data channel;
and S204, the diagnosis box feeds back the connection state to the middleware according to the connection instruction, so that the middleware feeds back the connection state to the application terminal.
Preferably, the diagnostic box supports 4 CAN channels and 2K lines, and stores a program for controlling access to the corresponding data channels; wherein, the diagnosis box is connected with the ECU through a CAN channel or a K line.
For step S201, the application terminal is connected to the middleware through a JNI interface, and the middleware is connected to the diagnostic box through a USB/TCP interface.
For step S202, the middleware obtains, according to the ECU model, a communication configuration corresponding to the ECU model from a configuration library, specifically:
according to the ECU model, acquiring communication configuration corresponding to the ECU model from the configuration library through SQL/data rules; wherein the content of the first and second substances,
the middleware comprises an ECU communication diagnosis protocol and an ECU instruction execution program;
the communication configuration comprises an ECU model configuration table, an ECU configuration table, vehicle internal information and an instruction set table, wherein the vehicle internal information comprises a vehicle model table, a basic information table, a whole vehicle information table, a fault code table, a parameter table and a test table.
It will be appreciated that, as shown in FIG. 3, the method of connecting to the ECU comprises the following steps: the application terminal 100 selects a new diagnostic model ECU; the application terminal 100 calls the middleware 200 through the JNI to acquire communication configuration corresponding to the diagnosis machine type; the middleware 200 obtains the corresponding communication configuration from the configuration library 300 through the SQL/data rule (including the bus connection line mode, it is known that the new diagnostic model is the CAN line); the middleware 200 sends an instruction to inform the box to connect the CAN data channel based on the communication configuration; the diagnostic box 400 returns the state to the middleware after switching the channels, and the middleware 200 returns the returned state to the application through the invocation of the JNI interface; the application terminal 100 displays a successful connection status.
It can be understood that, as shown in fig. 3, the method for supporting automatic switching between buses by the hardware part includes the following specific steps: some ECU is being diagnosed by K-line before the application terminal 100; the application terminal 100 selects a new diagnostic model ECU; the application terminal 100 calls the middleware 200 through the JNI to acquire communication configuration corresponding to the diagnosis machine type; the middleware 200 obtains the corresponding communication configuration from the configuration library 300 through the SQL/data rule (including the bus connection line mode, it is known that the new diagnostic model is the CAN line); the middleware 200 sends an instruction to inform the box to connect the CAN data channel based on the communication configuration; the diagnostic box 400 returns the status to the middleware after switching the channels, and the middleware 200 returns the returned status to the application terminal 100 through the invocation of the JNI interface; the application terminal 100 displays a successful connection status.
The embodiment provides an automatic bus switching method suitable for remote fault diagnosis, which comprises the following steps: the application terminal transmits the ECU model to the middleware according to the selected new ECU model to be diagnosed; the middleware acquires communication configuration corresponding to the ECU model from a configuration library according to the ECU model; the middleware is connected with the CAN channel based on the communication configuration and sends a connection instruction to the diagnosis box so as to access the CAN data channel; and the diagnostic box feeds back the connection state to the middleware according to the connection instruction, so that the middleware feeds back the connection state to the application terminal. The invention can realize remote fault diagnosis of various vehicle types by switching between buses.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (7)
1. A bus automatic switching system suitable for remote fault diagnosis is characterized by comprising an application terminal, middleware, a configuration library and a diagnosis box; wherein the content of the first and second substances,
the application terminal is connected with the middleware and used for selecting a new ECU model to be diagnosed;
the middleware is used for acquiring communication configuration corresponding to the ECU model from the configuration library according to the ECU model;
the middleware is also used for connecting a CAN channel based on the communication configuration and sending a connection instruction to the diagnosis box so as to access a CAN data channel;
the diagnosis box is used for feeding back a connection state to the middleware according to the connection instruction so that the middleware feeds back the connection state to the application terminal;
the diagnosis box supports 4 paths of CAN channels and 2 paths of K lines, and stores programs for controlling access to corresponding data channels;
specifically, the application terminal diagnoses a certain ECU through a K line before, selects a new diagnosis model ECU, calls the middleware through JNT to acquire a communication configuration corresponding to the diagnosis model, and obtains that the new diagnosis model is a CAN line in a bus connection circuit mode.
2. The bus automatic switching system for remote fault diagnosis according to claim 1, wherein the application terminal is connected to the middleware through a JNI interface, and the middleware is connected to the diagnostic box through a USB/TCP interface.
3. The system according to claim 1, wherein the middleware is specifically configured to obtain, according to the ECU model, a communication configuration corresponding to the ECU model from the configuration library by using SQL/data rules; wherein the content of the first and second substances,
the middleware comprises an ECU communication diagnosis protocol and an ECU instruction execution program;
the communication configuration comprises an ECU model configuration table, an ECU configuration table, vehicle internal information and an instruction set table, wherein the vehicle internal information comprises a vehicle model table, a basic information table, a whole vehicle information table, a fault code table, a parameter table and a test table.
4. The bus automatic switching system suitable for remote fault diagnosis according to claim 1, further comprising an ECU connected with the diagnosis box through a CAN channel or a K-wire.
5. A bus automatic switching method suitable for remote fault diagnosis is characterized by comprising the following steps of;
the application terminal transmits the ECU model to the middleware according to the selected new ECU model to be diagnosed;
the middleware acquires communication configuration corresponding to the ECU model from a configuration library according to the ECU model;
the middleware is connected with the CAN channel based on the communication configuration and sends a connection instruction to the diagnosis box so as to access the CAN data channel;
the diagnostic box feeds back a connection state to the middleware according to the connection instruction, so that the middleware feeds back the connection state to the application terminal;
the diagnosis box supports 4 paths of CAN channels and 2 paths of K lines, and stores programs for controlling access to corresponding data channels; the diagnosis box is connected with the ECU through a CAN channel or a K line;
specifically, the application terminal diagnoses a certain ECU through a K line before, selects a new diagnosis model ECU, calls the middleware through JNT to acquire a communication configuration corresponding to the diagnosis model, and obtains that the new diagnosis model is a CAN line in a bus connection circuit mode.
6. The bus automatic switching method suitable for remote fault diagnosis according to claim 5, wherein the application terminal is connected to the middleware through a JNI interface, and the middleware is connected to the diagnosis box through a USB/TCP interface.
7. The method for automatically switching the buses suitable for the remote fault diagnosis according to claim 5, wherein the middleware obtains the communication configuration corresponding to the ECU model from a configuration library according to the ECU model, specifically:
according to the ECU model, acquiring communication configuration corresponding to the ECU model from the configuration library through SQL/data rules; wherein the content of the first and second substances,
the middleware comprises an ECU communication diagnosis protocol and an ECU instruction execution program;
the communication configuration comprises an ECU model configuration table, an ECU configuration table, vehicle internal information and an instruction set table, wherein the vehicle internal information comprises a vehicle model table, a basic information table, a whole vehicle information table, a fault code table, a parameter table and a test table.
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Denomination of invention: A bus automatic switching system and method suitable for remote fault diagnosis Effective date of registration: 20220315 Granted publication date: 20210112 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU RUIXIUDE INFORMATION TECHNOLOGY CO.,LTD. Registration number: Y2022980002580 |