CN108303970A - A kind of method of automatic identification vehicle diagnosis interface channel - Google Patents
A kind of method of automatic identification vehicle diagnosis interface channel Download PDFInfo
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- CN108303970A CN108303970A CN201810161335.XA CN201810161335A CN108303970A CN 108303970 A CN108303970 A CN 108303970A CN 201810161335 A CN201810161335 A CN 201810161335A CN 108303970 A CN108303970 A CN 108303970A
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- interface switch
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Classifications
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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
-
- 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
Abstract
The invention discloses a kind of methods of automatic identification vehicle diagnosis interface channel, including the 1st road interface switch, the 2nd road interface switch, the 3rd road interface switch and the 4th road interface switch；The 1st road interface switch, the 2nd road interface switch, the 3rd road interface switch and the 4th road interface switch are connected in parallel；The present invention carries out CAN access selections by the way of analog switch, increases stability, reduces cost；The present invention does not need multichannel CAN controller；Multichannel CAN transceiver, of low cost is not needed；After successful scan, load effect will not be caused to primary circuit, and CPU platforms are more easy to select.
Description
Technical field
The present invention relates to automobile diagnosis technique fields, the specially a kind of side of automatic identification vehicle diagnosis interface channel
Method.
Background technology
According to the definition of alliance of Chinese Internet of Things school-run enterprise, car networking is made of information such as vehicle location, speed and routes
The huge Internet.Itself environment can be completed by devices, vehicles such as GPS, RFID, sensor, camera image processing
With the acquisition of status information；By Internet technology, all vehicles can be by the various information Transmission Convergences of itself to center
Processor；By computer technology, the information of these a large amount of vehicles can be analyzed and processed, to calculate different vehicle
Best route reports without delay road conditions and arranges signal lamp cycle；Current car networking System Development mainly passes through sensor technology, nothing
Line transmission technology, mass data processing technology, Data Integration complement each other to coordinate and realize.It the future of car networking system, will
Integrated system function, data magnanimity, high transfer rate can be faced.Car-mounted terminal integrates vehicle instrument desk electronic equipment, such as
Hard disk broadcasting, radio etc., data acquisition can also face multi-channel video output and require, therefore for the transmission of image data, need
Want extensive utilization popular 3G network now.
" car networking is the network between vehicle, road, people ", the sensing technology application in car networking are mainly the sensor network of vehicle
The sensor network on the roads Luo He.The sensor network of vehicle can be divided into interior sensor network and vehicle outer sensor network again.It is interior
Sensor network is the network of the condition information about vehicle to be provided to people, for example remote diagnosis just needs these condition informations, with
For analyzing and determining the situation of vehicle；Vehicle outer sensor network is exactly the sensor network for incuding vehicle external environment situation, such as anti-
The sensor information of collision, the camera for incuding external environment, these information can be used for enhancing safety and be driven as auxiliary
Information.The sensor network on road refers to the network that those layings are on the way constituted with the sensor in roadside, these sensors are used for
Perception and the condition information for transmitting road, such as vehicle flowrate, speed, crossing congestion situation, these information can allow onboard system to obtain
Obtain the information about road and traffic environment.It is either interior, outside vehicle or the sensor network of road, all play car
The effect of situation and environment sensing obtains " content " of unique (being different from internet) for " car networking ".It is " interior to integrate these
Hold ", that is, sensing network information is integrated, will be " car networking " important technology developing contents and the development of very characteristic technology
Content.
The data of vehicle motor are monitored in real time in car networking field at present, this just needs to connect vehicle
ECU, but the model of vehicle motor has different connection types according to different automobile types.
There are many current positions various automobile ecu connecting interface CAN, and main difficulty point is the OBD interface line sequences for connecting ECU
At least 4 kinds combinations, need to be scanned these four combinations, need 4 CAN controllers to scan CAN, this requires that institute
The CPU of use supports 4 road CAN.Two CPU support there are two types of the modes of 4 road CAN that a kind of using the form extended out, another is adopted
With the CPU for supporting 4 road CAN.
Existing mode, has the following disadvantages：CAN controller is extended out using multiple or multiple controllers drive row into not
Same CAN interface, carries out data acquisition, and cost is higher；CAN transceiver unanimously hangs over bus, there are consistent power consumption, node work always
Make state, certain burden is caused to bus.
Invention content
The purpose of the present invention is to provide a kind of methods of automatic identification vehicle diagnosis interface channel, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of automatic identification vehicle diagnosis interface channel
Method, including the 1st road interface switch, the 2nd road interface switch, the 3rd road interface switch and the 4th road interface switch；1st tunnel
Interface switch, the 2nd road interface switch, the 3rd road interface switch and the 4th road interface switch are connected in parallel.
Preferably, recognition methods includes the following steps：
A, the CAN interface switch for opening the 1st tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 1st tunnel if it is valid data, if without valid data, carries out in next step；
B, the CAN interface switch for opening the 2nd tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 2nd tunnel if it is valid data, if without valid data, carries out in next step；
C, the CAN interface switch for opening the 3rd tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 3rd tunnel if it is valid data, if without valid data, carries out in next step；
D, the CAN interface switch for opening the 4th tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 4th tunnel if it is valid data, if without valid data, again from repetition first via scanning.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention carries out CAN accesses by the way of analog switch
Selection increases stability, reduces cost；The present invention does not need multichannel CAN controller；Multichannel CAN transceiver, at low cost is not needed
It is honest and clean；After successful scan, load effect will not be caused to primary circuit, and CPU platforms are more easy to select.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides the following technical solutions：A kind of side of automatic identification vehicle diagnosis interface channel
Method, including the 1st road interface switch, the 2nd road interface switch, the 3rd road interface switch and the 4th road interface switch；The 1st road interface
Switch, the 2nd road interface switch, the 3rd road interface switch and the 4th road interface switch are connected in parallel；Wherein, interface switch be similar to after
Electric appliance opens the opening and closing of control channel with CTRABCD, and an only way switch is open in the same time, is only needed in this way
Will all the way CAN controller complete data scanning receive.
The recognition methods of the present invention includes the following steps：
A, the CAN interface switch for opening the 1st tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 1st tunnel if it is valid data, if without valid data, carries out in next step；
B, the CAN interface switch for opening the 2nd tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 2nd tunnel if it is valid data, if without valid data, carries out in next step；
C, the CAN interface switch for opening the 3rd tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 3rd tunnel if it is valid data, if without valid data, carries out in next step；
D, the CAN interface switch for opening the 4th tunnel closes other three-way switches, then carries out reception data, is carried out to data
Analysis is then the 4th tunnel if it is valid data, if without valid data, again from repetition first via scanning.
The present invention carries out CAN access selections by the way of analog switch, increases stability, reduces cost；The present invention is not
Need multichannel CAN controller；Multichannel CAN transceiver, of low cost is not needed；After successful scan, primary circuit will not be caused
Load effect, and CPU platforms are more easy to select.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of method of automatic identification vehicle diagnosis interface channel, it is characterised in that：Including the 1st road interface switch, the 2nd tunnel
Interface switch, the 3rd road interface switch and the 4th road interface switch；The 1st road interface switch, the 2nd road interface switch, the 3rd tunnel connect
Mouth switch and the 4th road interface switch are connected in parallel.
2. a kind of method of automatic identification vehicle diagnosis interface channel according to claim 1, it is characterised in that：Identification
Method includes the following steps：
A, the CAN interface switch for opening the 1st tunnel closes other three-way switches, then carries out reception data, analyzes data,
It is then the 1st tunnel if it is valid data, if without valid data, carries out in next step；
B, the CAN interface switch for opening the 2nd tunnel closes other three-way switches, then carries out reception data, analyzes data,
It is then the 2nd tunnel if it is valid data, if without valid data, carries out in next step；
C, the CAN interface switch for opening the 3rd tunnel closes other three-way switches, then carries out reception data, analyzes data,
It is then the 3rd tunnel if it is valid data, if without valid data, carries out in next step；
D, the CAN interface switch for opening the 4th tunnel closes other three-way switches, then carries out reception data, analyzes data,
It is then the 4th tunnel if it is valid data, if without valid data, again from repetition first via scanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161335.XA CN108303970A (en) | 2018-02-27 | 2018-02-27 | A kind of method of automatic identification vehicle diagnosis interface channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161335.XA CN108303970A (en) | 2018-02-27 | 2018-02-27 | A kind of method of automatic identification vehicle diagnosis interface channel |
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| Publication Number | Publication Date |
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| CN108303970A true CN108303970A (en) | 2018-07-20 |
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| CN201810161335.XA Pending CN108303970A (en) | 2018-02-27 | 2018-02-27 | A kind of method of automatic identification vehicle diagnosis interface channel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327769A (en) * | 2008-08-01 | 2008-12-24 | 清华大学 | Connection system of vehicle electric appliance |
| CN102520275A (en) * | 2011-11-29 | 2012-06-27 | 广东东研网络科技有限公司 | Novel rack module identification method and system |
| US20130120246A1 (en) * | 2008-03-19 | 2013-05-16 | Brain Actuated Technologies | Method and apparatus for using biopotentials for simultaneous multiple control functions in computer systems |
| CN105388805A (en) * | 2015-11-01 | 2016-03-09 | 四川泛华航空仪表电器有限公司 | SPI (Serial Peripheral Interface) bus-based measurement control system |
| CN105676834A (en) * | 2015-12-31 | 2016-06-15 | 天津布尔科技有限公司 | CAN bus interface self-matching device of on board diagnostics (OBD) |
-
2018
- 2018-02-27 CN CN201810161335.XA patent/CN108303970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130120246A1 (en) * | 2008-03-19 | 2013-05-16 | Brain Actuated Technologies | Method and apparatus for using biopotentials for simultaneous multiple control functions in computer systems |
| CN101327769A (en) * | 2008-08-01 | 2008-12-24 | 清华大学 | Connection system of vehicle electric appliance |
| CN102520275A (en) * | 2011-11-29 | 2012-06-27 | 广东东研网络科技有限公司 | Novel rack module identification method and system |
| CN105388805A (en) * | 2015-11-01 | 2016-03-09 | 四川泛华航空仪表电器有限公司 | SPI (Serial Peripheral Interface) bus-based measurement control system |
| CN105676834A (en) * | 2015-12-31 | 2016-06-15 | 天津布尔科技有限公司 | CAN bus interface self-matching device of on board diagnostics (OBD) |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180720 |
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| RJ01 | Rejection of invention patent application after publication |