CN206178464U - Multi -protocols vehicle diagnostic system based on ARMCortex - Google Patents
Multi -protocols vehicle diagnostic system based on ARMCortex Download PDFInfo
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- CN206178464U CN206178464U CN201621198185.2U CN201621198185U CN206178464U CN 206178464 U CN206178464 U CN 206178464U CN 201621198185 U CN201621198185 U CN 201621198185U CN 206178464 U CN206178464 U CN 206178464U
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Abstract
The utility model relates to a multi -protocols vehicle diagnostic system based on ARMCortex is used for realizing with host computer and the automatically controlled unit connection of vehicle respectively because the vehicle of multiple agreement is diagnosed, multi -protocols vehicle diagnostic system is including the little the control unit of communication module, ARM cortex and the integrated bus module that connect gradually, communication module and upper computer connection, integrated bus module and the automatically controlled unit connection of vehicle, does integrated bus module include CAN bus, lin bus and K the line bus, CAN bus, lin bus and K the quantity of line bus is 4 the tunnel. Compared with the prior art, the utility model has the advantages of support that the agreement is many, the bus type comprehensively, can parallel transmission and diagnoses fastly.
Description
Technical field
This utility model is related to a kind of vehicle diagnosing system, more particularly, to a kind of multi-protocols car based on ARM Cortex
Diagnostic system.
Background technology
Vehicle diagnosing system is the components information that vehicle is detected by being connected with vehicle electrically controlling unit, so as to vehicle
Demarcated, diagnosed, program updating, initialization and the detection of failure with exclude.Vehicle electrically controlling unit is connect by normal data
Mouthful, it is ensured that the access and process to fault message.
Existing vehicle diagnosing system, more using single agreement, it is impossible to realize multi-protocols vehicle diagnostics, and current vehicle
Diagnostic system, is typically directly connected by high-speed CAN bus, it is impossible to transmitting data in parallel in physical layer with vehicle electrically controlling unit,
Cause the work efficiency of vehicle diagnosing system relatively low.
Utility model content
The purpose of this utility model is to provide a kind of multi-protocols vehicle diagnostics based on ARM Cortex for the problems referred to above
System.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of multi-protocols vehicle diagnosing system based on ARM Cortex, is connected respectively with host computer and vehicle electrically controlling unit
To realize the vehicle diagnostics based on various protocols, communication module that the multi-protocols vehicle diagnosing system includes being sequentially connected,
ARM Cortex micro-control units and Integration Bus module, the communication module connects respectively with host computer and vehicle electrically controlling unit
Connect, the Integration Bus module is connected with vehicle electrically controlling unit, the Integration Bus module includes CAN, Lin buses and K-
Line buses, the quantity of the CAN, Lin buses and K-Line buses is 4 tunnels.
The CAN includes single line CAN bus, high-speed CAN bus and fault-tolerant CAN.
The multi-protocols vehicle diagnosing system also includes CPLD, the CPLD
It is connected with host computer and ARM Cortex micro-control units respectively.
The communication module includes WLAN interface, IRDA interface and LAN interface, the WLAN interface, IRDA interface and LAN
Interface is respectively connected with host computer and ARM Cortex micro-control units.
The multi-protocols vehicle diagnosing system also includes static RAM, the static RAM
It is connected with ARM Cortex micro-control units.
The multi-protocols vehicle diagnosing system also include power supply management module, the power supply management module respectively with it is upper
The connection of machine, ARM Cortex micro-control units and Integration Bus module.
The power supply management module includes power supervisor and the intelligent battery manager being sequentially connected, the power management
Device is connected with host computer, and the intelligent battery manager connects respectively with ARM Cortex micro-control units and Integration Bus module
Connect.
Compared with prior art, this utility model has the advantages that：
(1) it is connected with ARM Cortex micro-control units using Integration Bus module, 4 is included wherein in Integration Bus module
Road CAN, 4 road Lin buses and 4 road K-Line buses, can enter the switching of row bus, the bus of support according to data type
Comprehensively, flexibly, Practical Performance is strong for data transfer mode for species.
(2) CAN also includes single line CAN bus, high-speed CAN bus and fault-tolerant CAN, can be with parallel transmission number
According to, accelerate the transmission speed of data, improve the work efficiency of multi-protocols vehicle diagnosing system.
(3) multi-protocols vehicle diagnosing system also includes CPLD, respectively with host computer and ARM
Cortex micro-control units connect, and to the conversion for realizing data, reduce the complexity of ARM Cortex micro-control units work
Degree, improves the speed that operation is processed.
(4) communication module includes WLAN interface, IRDA interface and LAN interface, in the specific finger of communication data for needing transmission
When tropism is not strong, communication can be realized using lower-cost WLAN interface and LAN interface, using relatively costly when directivity is strong
IRDA interface realize communication, the accuracy that both ensure that communication also saves overall communication cost, and Practical Performance is strong.
(5) multi-protocols vehicle diagnosing system is additionally provided with static RAM, can be used for when data volume is excessive
It is data cached, it is ensured that the stability of system.
(6) power supply management module is provided with, power supply is reduced when system energy consumption is relatively low, it is to avoid the waste of the energy.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the software architecture diagram inside ARM Cortex micro-control units；
Wherein, 11 is WLAN interface, and 12 is IRDA interface, and 13 is LAN interface, and 2 is ARM Cortex micro-control units, 31
For CAN, 32 is Lin buses, and 33 is K-Line buses, and 41 is power supervisor, and 42 is intelligent battery manager, and 5 is multiple
Miscellaneous PLD.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in detail with specific embodiment.The present embodiment is with this utility model
Implemented premised on technical scheme, given detailed embodiment and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
As shown in figure 1, present embodiments provide a kind of multi-protocols vehicle diagnosing system based on ARM Cortex, respectively with
Host computer and vehicle electrically controlling unit connect to realize that, based on the vehicle diagnostics of various protocols, many of agreement includes
ISO15765 agreements, ISO14230 agreements, TP2.0 agreements, TP1.6 agreements and KWP2000 agreements, the multi-protocols vehicle diagnostics system
System includes communication module, ARM Cortex micro-control units 2 and Integration Bus module, communication module and the host computer being sequentially connected
Connection, Integration Bus module is connected with vehicle electrically controlling unit, wherein, Integration Bus module includes CAN 31, Lin buses 32
With K-Line buses 33, CAN 31 (including single line CAN bus, high-speed CAN bus and fault-tolerant CAN), Lin buses 32
4 tunnels are with the quantity of K-Line buses 33.Communication module includes WLAN interface 11, IRDA interface 12 and LAN interface 13, WLAN
Interface 11, IRDA interface 12 and LAN interface 13 are respectively connected with host computer and ARM Cortex micro-control units 2.Multi-protocols
Vehicle diagnosing system also includes static RAM, the static RAM and ARM Cortex microcontroller lists
Unit 2 connects.Simultaneously multi-protocols vehicle diagnosing system also includes power supply management module, and power supply management module includes the electricity being sequentially connected
Source manager 41 and intelligent battery manager 42, power supervisor 41 is connected with host computer, intelligent battery manager 42 respectively with
ARM Cortex micro-control units 2 and Integration Bus module connect.The multi-protocols vehicle diagnosing system also includes complex programmable
Logical device 5, is connected respectively with host computer and ARM Cortex micro-control units 2, realizes the conversion of data.
The software architecture diagram of ARM Cortex micro-control units 2 in the multi-protocols vehicle diagnosing system is illustrated in figure 2, it is soft
Mainly realize iso standard and SAE automotive communication protocol physical layers, data link layer and application layer protocol, and company in part part
A set of communications protocol that the multi-protocols vehicle diagnosing system of exploitation is communicated with CPU card；One is transplanted in the system bottom to be embedded in
Formula real time operating system FreeRTOS operating system, can simultaneously run multiple tasks and be processed, and facilitate later extension
And upgrading；The maximum advantage of real time operating system is to meet the requirement of real-time using proposing, task response-time can be predicted,
Fully meet the timing requirements of iso standard and SAE automotive communication protocols；Can be more using embedded real-time operating system (RTOS)
Rationally, more effectively simplify the design of application software using the resource of CPU, shorten the system development time, better ensure that system
Real-time and reliability；According to different communications protocol and different communication channels, different task process are created, and to not
With the different priority of course allocation；Different passages such as same type adopt identical priority, in same passage
The treaty override level of bottom is higher；On the upper strata of operating system, the driving layer of CAN/LIN/K-Line has been run.Using outer
The RAM of portion's extension coordinates the high-speed RAM inside processor, and the agreement that inner high speed RAM distributes to operating system and bottom is made
With external RAM provides big temporary memory space to application layer, and the speed of service and efficiency for making system is significantly increased, can met
The 4 road CAN and 4 road K-LINE of system occur without packet loss problem when working long hours with maximum communication speed simultaneously, in this shape
State is less than 65% by the system CPU resource occupation that debugger is detected.Run the various of SAE specifications on layer driving
Vehicle communication agreement and the communications protocol and the interface with upper application software of manufacturer.
The working method of the multi-protocols vehicle diagnosing system is specially：System receives what host computer sent by communication module
Diagnostic command, communication module first determines whether the diagnostic command whether more sensitive special parts of direction-pointing function, if it is
Transmitted by IRDA interface 12, otherwise transmitted by WLAN interface 11 or LAN interface 13, after order is received, communication module
Transmit it to ARM Cortex micro-control units 2 or be directly transferred to vehicle electrically controlling unit, ARM Cortex micro-control units 2
Order to receiving is responded and processed, if the overabundance of data that ARM Cortex are received, by partial data
In being temporarily stored into SRAM.After the completion of ARM Cortex process, control signal is passed through into CAN 31, Lin buses
32 and K-Line buses 33 are transmitted to vehicle electrically controlling unit, to the issue for realizing diagnostic command, while Integration Bus module connects
Return the vehicle to the garage and knock off the feedback signal of an ECU, it is transmitted again into ARM Cortex micro-control units 2, then it is anti-by communication module
In being fed to host computer, the diagnosis of vehicle is completed.
Claims (7)
1. a kind of multi-protocols vehicle diagnosing system based on ARM Cortex, is connected use with host computer and vehicle electrically controlling unit respectively
To realize that, based on the vehicle diagnostics of various protocols, the multi-protocols vehicle diagnosing system includes communication module, the ARM being sequentially connected
Cortex micro-control units and Integration Bus module, the communication module is connected respectively with host computer and vehicle electrically controlling unit, institute
State Integration Bus module to be connected with vehicle electrically controlling unit, it is characterised in that the Integration Bus module includes that CAN, Lin are total
Line and K-Line buses, the quantity of the CAN, Lin buses and K-Line buses is 4 tunnels.
2. the multi-protocols vehicle diagnosing system based on ARM Cortex according to claim 1, it is characterised in that described
CAN includes single line CAN bus, high-speed CAN bus and fault-tolerant CAN.
3. the multi-protocols vehicle diagnosing system based on ARM Cortex according to claim 1, it is characterised in that described many
Agreement vehicle diagnosing system also include CPLD, the CPLD respectively with host computer and
ARM Cortex micro-control units connect.
4. the multi-protocols vehicle diagnosing system based on ARM Cortex according to claim 1, it is characterised in that described logical
News module include WLAN interface, IRDA interface and LAN interface, the WLAN interface, IRDA interface and LAN interface respectively with it is upper
Position machine and the connection of ARM Cortex micro-control units.
5. the multi-protocols vehicle diagnosing system based on ARM Cortex according to claim 1, it is characterised in that described many
Agreement vehicle diagnosing system also includes static RAM, and the static RAM is micro- with ARM Cortex
Control unit connects.
6. the multi-protocols vehicle diagnosing system based on ARM Cortex according to claim 1, it is characterised in that described many
Agreement vehicle diagnosing system also includes power supply management module, and the power supply management module is micro- with host computer, ARM Cortex respectively
Control unit and Integration Bus module connect.
7. the multi-protocols vehicle diagnosing system based on ARM Cortex according to claim 6, it is characterised in that the confession
Electric management module includes power supervisor and the intelligent battery manager being sequentially connected, and the power supervisor connects with host computer
Connect, the intelligent battery manager is connected respectively with ARM Cortex micro-control units and Integration Bus module.
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| CN201621198185.2U CN206178464U (en) | 2016-11-04 | 2016-11-04 | Multi -protocols vehicle diagnostic system based on ARMCortex |
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| CN201621198185.2U CN206178464U (en) | 2016-11-04 | 2016-11-04 | Multi -protocols vehicle diagnostic system based on ARMCortex |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110213221A (en) * | 2018-02-28 | 2019-09-06 | 罗伯特·博世有限公司 | Method for executing diagnosis |
| CN110442070A (en) * | 2019-09-09 | 2019-11-12 | 山东理工大学 | A kind of signal light control tutoring system of changeable communication mode |
| CN110471771A (en) * | 2019-08-16 | 2019-11-19 | 佳源科技有限公司 | A kind of distribution real time operating system |
| WO2020135863A1 (en) * | 2018-12-29 | 2020-07-02 | 深圳市道通科技股份有限公司 | Electronic control unit scanning method and vehicle diagnosis device thereof in vehicle |
| CN112987608A (en) * | 2021-02-02 | 2021-06-18 | 上海技涵电子科技有限公司 | Multifunctional electronic motor control communicator and control method |
-
2016
- 2016-11-04 CN CN201621198185.2U patent/CN206178464U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110213221A (en) * | 2018-02-28 | 2019-09-06 | 罗伯特·博世有限公司 | Method for executing diagnosis |
| CN110213221B (en) * | 2018-02-28 | 2023-08-11 | 罗伯特·博世有限公司 | Method for performing diagnostics |
| WO2020135863A1 (en) * | 2018-12-29 | 2020-07-02 | 深圳市道通科技股份有限公司 | Electronic control unit scanning method and vehicle diagnosis device thereof in vehicle |
| US11995921B2 (en) | 2018-12-29 | 2024-05-28 | Autel Intelligent Technology Corp., Ltd. | Scanning method for electronic control unit in vehicle and vehicle diagnostic device |
| CN110471771A (en) * | 2019-08-16 | 2019-11-19 | 佳源科技有限公司 | A kind of distribution real time operating system |
| CN110442070A (en) * | 2019-09-09 | 2019-11-12 | 山东理工大学 | A kind of signal light control tutoring system of changeable communication mode |
| CN112987608A (en) * | 2021-02-02 | 2021-06-18 | 上海技涵电子科技有限公司 | Multifunctional electronic motor control communicator and control method |
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