CN103631363B - Automobile data interface expanding device and method for achieving data interaction - Google Patents
Automobile data interface expanding device and method for achieving data interaction Download PDFInfo
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- CN103631363B CN103631363B CN201310430765.4A CN201310430765A CN103631363B CN 103631363 B CN103631363 B CN 103631363B CN 201310430765 A CN201310430765 A CN 201310430765A CN 103631363 B CN103631363 B CN 103631363B
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Abstract
The invention discloses an automobile data interface expanding device and a method for achieving data interaction. The automobile data interface expanding device is connected with an original-automobile OBD data interface device through an external OBD data interface expanding device. The external OBD data interface expanding device comprises a power source, a power management module, an input port, a data exchange circuit and a plurality of output ports. The power source and the input port are connected together and power is supplied to the data exchange circuit and the output ports through the power management module. The input port conducts data interaction with the output ports through the data exchange circuit. According to the automobile data interface expanding device and the method for achieving data interaction, an automatic electronic system can be connected with a plurality of external terminal devices at the same time and multiple paths of data can be collected simultaneously.
Description
Technical field
The present invention relates to a kind of car data interface extending device and the method for realizing data interaction.
Background technology
OBD is the abbreviation of English On-Board Diagnostic, and translator of Chinese is " onboard diagnostic system ".It is automobile number
According to ingredient critically important in interface extending device.
From the eighties in 20th century, each big automobile manufacturing enterprise such as U.S., day, Europe starts to match somebody with somebody on the electro jet car that produces at it
Standby OBD, the OBD at initial stage do not have self-checking function.The OBD-II more advanced than OBD is produced in the mid-90 in 20th century, U.S.'s vapour
Turner SCTE (SAE) has formulated a set of standard criterion, it is desirable to which each automobile manufacturing enterprise provides system according to the standard of OBD-II
One diagnostic mode, in latter stage 90 year 20th century, the automobile into North America market all arranges OBD according to new standard.
OBD-II was have strict discharge specific aim with former all onboard diagnostic system differences, and it is substantive
It can be exactly the discharge by monitoring the power and emission control systems of automobile to monitor automobile.Power or emission control when automobile
System malfunctions, it is possible to cause carbon monoxide (CO), Hydrocarbon (HC), oxynitride or EVAP contaminant capacity
More than the standard of setting, trouble light will light warning.
The characteristics of OBD-II：1st, unified car type diagnosis seat is shaped as 16PIN；2nd, there is numerical analysis data transmission function on
(DATA LINK CONNECTOR abbreviation DLC)；3rd, each car type same fault code of unification and meaning；4th, with drive recorder
Function；5th, with show again memory DTC function；6th, with can directly remove DTC function by instrument.
Although OBD-II is largely effective to monitoring motor vehicle emission, driver receives warning entirely with " conscious ".For
This, the OBD-III more advanced than OBD-II is generated.OBD-III main purposes are to be combined into the detection of automobile, maintenance and management
Integrally, meeting the requirement of environmental conservation.OBD-III systems can be respectively enterd in systems ECU such as electromotor, change speed gear box, ABS
Read failure code and other related datas, and using small size communication system, such as GPS navigation system or communication
By the information automatic announcement administration section such as the identity code of vehicle, DTC and position, administration section is according to vehicle row
The grade for putting problem sends instruction to it, the suggestion keeped in repair including where, solves time limit of emission problem etc., can also be to exceeding
The vehicle of the violator in time limit sends forbidden instruction.Therefore, OBD-III systems can not only be sent out vehicle emission problem to driver
Go out warning, and violator can also be punished.The application of OBD system is the once innovation of discharge standard, and its function is just
Really play particularly significant for the control of vehicle discharge.
It is at present general on automobile to be only equipped with an OBD DIU data interface unit, when external several terminal peripheral hardwares are needed without
Method is realized；Some automobiles are produced dry equipped with several 0BD data-interfaces expanding units, but when multiple interfaces are used simultaneously
Disturb or conflict.
Therefore, needing one kind badly enables automobile electronic system while connecting multiple exterior terminal equipment, realizes many of data
Road is while the car data interface extending device for gathering and the method for realizing data interaction.
The content of the invention
First purpose of the present invention is to provide one kind and enables automobile electronic system and set while connecting multiple exterior terminals
It is standby, realize the car data interface extending device that the multichannel of data is gathered simultaneously.
Second object of the present invention is to provide the side that a kind of utilization car data interface extending device realizes data interaction
Method.
In order to realize above-mentioned first purpose, the technical scheme that the present invention is provided is：There is provided a kind of car data interface to expand
Extending apparatus, including：It is connected with former car OBD DIU data interface units by outside OBD data-interfaces expanding unit, the outside OBD
Data-interface expanding unit includes power supply, power management module, input port, data exchange circuit and some output ports, institute
State power supply to access together with the input port and by the power management module to the data exchange circuit and outfan
Confession electricity, the input port carries out data interaction by the data exchange circuit with the output port.
The data exchange circuit includes embedded controller, matrix switch circuit and CAN transponder, the input
Port and output port are connected with the CAN transponder, the CAN transponder also with the embedded controller
It is connected, the embedded controller is entered the input port and any one described output port by the matrix switch circuit
Row data interaction.
The car data interface extending device also includes input connection cable and output connection cable, the former car OBD
DIU data interface unit is connected by the input connection cable with the outside OBD data-interface expanding units, the outside OBD
Data-interface expanding unit is connected by output connection cable with user's OBD peripheral hardwares.
The embedded controller includes：
Scan module, the scan module is scanned one by one to the interrupt requests of output port each described；
Judge module, the judge module judges whether the output port of Current Scan has interrupt requests, if so, then
The input port is carried out into data interaction by handover module with the output port for there are interrupt requests, if it is not, then continuing
Perform current action；
Handover module, when the judge module judges that the output port has interrupt requests, then by the matrix switch
The input port is switched to and carries out data friendship with the output port for having interrupt requests by circuit and CAN transponder
Mutually.
The judge module also includes whether the interruption for judging the output port for having interrupt requests terminates, if it is not, then
Current action is continued executing with, if so, then by the handover module release matrix switch circuit and CAN transponder,
The embedded controller is allowed to reenter scanning mode.
In order to realize above-mentioned second purpose, the technical scheme that the present invention is provided is：There is provided one kind to connect using car data
The method that mouth expanding unit realizes data interaction, comprises the steps：
The interrupt requests of output port each described are scanned one by one by scanning step；
Judge step, whether there are interrupt requests, if so, then by the input if judging the output port of Current Scan
Mouth carries out data interaction by handover module with the output port for having interrupt requests, if it is not, then continuing executing with current action；
Switch step, when judging that the output port has interrupt requests, then by the matrix switch circuit and CAN
The input port is switched to and carries out data interaction with the output port for having interrupt requests by transponder.
It is described to judge that step also includes whether the interruption for judging the output port for having interrupt requests terminates, if it is not, then
Current action is continued executing with, if so, then by the handover module release matrix switch circuit and CAN transponder,
The embedded controller is allowed to reenter scanning mode.
Compared with prior art, car data expanding unit of the present invention and the method for data interaction is realized, by outside
OBD interface extending devices, realize that former car OBD DIU data interface units are attached with multiple output ports, allow the input port
Data interaction is carried out with multiple output ports by the data exchange circuit, then realizes the multichannel of OBD data simultaneously
Collection, and it is online to connect multiple OBD terminals, can simultaneously realize that remote online fault diagnosis, online vehicle data analysis etc. are more
Plant online service demand.
By description below and accompanying drawing is combined, the present invention will become more fully apparent, these accompanying drawings are used to explain the present invention
Embodiment.
Description of the drawings
Fig. 1 uses schematic diagram for car data interface extending device of the present invention.
Fig. 2 is the structural representation of one embodiment of present invention outside OBD data-interface expanding units.Fig. 3 is this
The internal module figure of one embodiment of bright car data interface extending device.
Fig. 4 is the internal module figure of the embedded controller of car data interface extending device as shown in Figure 4.
Fig. 5 is an enforcement of the method that data interaction is realized using car data interface extending device as shown in Figure 4
The schematic diagram of example.
Specific embodiment
With reference now to Description of Drawings embodiments of the invention, the element numbers being similar in accompanying drawing represent similar element.Such as
Upper described, as shown in Fig. 1～5, the present invention provides a kind of car data interface extending device 100, including：By outside OBD numbers
Be connected with original car OBD DIU data interface unit 100a according to interface extending device 100b, embodiment as shown in Figure 3 give three it is defeated
Exit port, the outside OBD data-interface expanding unit bags 100b include power supply 10, power management module 20, input port 30,
Data exchange circuit 40 and output port 51,52,53, the power supply 10 is accessed and by described together with the input port 30
Power management module 20 is powered to the data exchange circuit 40 and output port 51,52,53, and the input port 30 passes through institute
State data exchange circuit 40 carries out data interaction with the output port 51,52,53.
As shown in figure 3, the data exchange circuit 40 includes that embedded controller 41, matrix switch circuit 42 and CAN are total
Line transponder 43, the input port 30 and output port 51,52,53 are connected with the CAN transponder 43, described
CAN transponder 43 is also connected with the embedded controller 41, and the embedded controller 41 is by the matrix switch
The input port 30 and the output port 51,52,53 are carried out data interaction by circuit 42.
The structural representation of outside OBD data-interfaces expanding unit 100b is illustrated in figure 2, Fig. 2 is shown with one
Input port, and the outside OBD data-interfaces expanding unit 100b of four output ports.
In embodiment as shown in Figure 1, the car data interface extending device 100 also includes the input He of connection cable 60
Output connection cable 70, the outside OBD data-interface expanding unit bag 100b, with 4 output ports, respectively by described
Output cable 2 is connected with user OBD peripheral hardware A, B, C, D.As shown in figure 4, the embedded controller 41 includes：
Scan module 411, the scan module 411 interrupt requests of output port each described 51,52,53 are carried out by
One scan；
Judge module 412, during the judge module 412 judges whether the output port 51,52,5 of Current Scan has
Disconnected request, if so, then by the input port 30 carries out data by handover module with the output port for having interrupt requests
Interaction, if it is not, then continuing executing with current action；
Handover module 413, when the judge module 413 judges that the output port has interrupt requests, then by the square
Battle array switched circuit 42 and CAN transponder 43 switch to the input port 30 and the output port for having interrupt requests
Carry out data interaction.
The judge module 413 also includes whether the interruption for judging the output port for having interrupt requests terminates, if it is not,
Current action is then continued executing with, if so, then the matrix switch circuit 42 and CAN is discharged by the handover module 413
Transponder 43, allows the embedded controller 41 to reenter scanning mode.
As shown in figure 5, in order to realize above-mentioned second purpose, the technical scheme that the present invention is provided is：A kind of utilization is provided
The method that car data interface extending device realizes data interaction, it should be noted that in embodiment as shown in Figure 5, it is used
To described outside OBD data-interface expanding unit bag 100b be that, with three output ports, three output ports are used respectively
1st, 2,3 identifying, and method comprises the steps：First it is to start to start, allows system to be initialized, important step includes：
Interrupt requests to output port 1,2,3 are scanned one by one first by scanning step；
Judge step, whether judge the output port of Current Scan there are interrupt requests, if so, then lead to the input port
Cross handover module carries out data interaction with the output port for having interrupt requests, if it is not, then continuing executing with current action；
Switch step, it is when judging that the output port 1 has interrupt requests, then total by the matrix switch circuit and CAN
The input port is switched to and carries out data interaction with the output port for having interrupt requests by line transponder.
It is described to judge that step also includes whether the interruption for judging the output port for having interrupt requests terminates, if it is not, then
Current action is continued executing with, if so, then by the handover module release matrix switch circuit and CAN transponder,
The embedded controller is allowed to reenter scanning mode.
With reference to Fig. 1～5, car data expanding unit of the present invention and the method for data interaction is realized, by outside OBD numbers
According to interface extending device, realize that former car OBD DIU data interface units are attached with multiple output ports, allow the input port to lead to
Cross the data exchange circuit carries out data interaction with multiple output ports, then realize the multichannel of OBD data while adopting
Collection, and it is online to connect multiple OBD terminals, can simultaneously realize that remote online fault diagnosis, online vehicle data analysis etc. are various
Online service demand.
Above disclosed is only the preferred embodiments of the present invention, can not limit the right of the present invention with this certainly
Scope, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (5)
1. a kind of car data interface extending device, it is characterised in that include：By outside OBD data-interfaces expanding unit and
Former car OBD DIU data interface units are connected, and the outside OBD data-interfaces expanding unit includes power supply, power management module, input
Port, data exchange circuit and some output ports, the power supply is accessed and by the power supply together with the input port
Management module is powered to the data exchange circuit and output port, and the input port is by the data exchange circuit and institute
Stating output port carries out data interaction；
The data exchange circuit includes embedded controller, matrix switch circuit and CAN transponder, the input port
And output port is connected with the CAN transponder, the CAN transponder also with the embedded controller phase
Even, the embedded controller is carried out the input port and any one described output port by the matrix switch circuit
Data interaction；
The embedded controller includes：
Scan module, the scan module is scanned one by one to the interrupt requests of output port each described；
Judge module, the judge module judges whether the output port of Current Scan has interrupt requests, if so, then by institute
State input port carries out data interaction by handover module with the output port for having interrupt requests, if it is not, then continuing executing with
Current action；
Handover module, when the judge module judges that the output port has interrupt requests, then by the matrix switch circuit
Switch to the input port with CAN transponder carries out data interaction with the output port for having interrupt requests.
2. car data interface extending device as claimed in claim 1, it is characterised in that：The car data Interface Expanding dress
Put and also include input connection cable and output connection cable, the former car OBD DIU data interface units are by the input connection electricity
Cable is connected with the outside OBD data-interface expanding units, and the outside OBD data-interfaces expanding unit is by output connection electricity
Cable is connected with user's OBD peripheral hardwares.
3. car data interface extending device as claimed in claim 1, it is characterised in that：The judge module also includes judging
Whether the interruption for having the output port of interrupt requests terminates, if it is not, then continuing executing with current action, if so, then passes through institute
State handover module and discharge the matrix switch circuit and CAN transponder, allow the embedded controller to reenter scanning
State.
4. a kind of method that car data interface extending device using as described in claim 1 or 3 realizes data interaction, it is special
Levy and be, comprise the steps：
The interrupt requests of output port each described are scanned one by one by scanning step；
Judge step, whether judge the output port of Current Scan there are interrupt requests, if so, then lead to the input port
Cross handover module carries out data interaction with the output port for having interrupt requests, if it is not, then continuing executing with current action；
Switch step, when judging that the output port has interrupt requests, is then forwarded by the matrix switch circuit and CAN
The input port is switched to and carries out data interaction with the output port for having interrupt requests by device.
5. the method that car data interface extending device as claimed in claim 4 realizes data interaction, it is characterised in that：It is described
Judge that step also includes whether the interruption for judging the output port for there are interrupt requests terminates, if it is not, then continuing executing with current
Action, if so, then allows described embedded by the handover module release matrix switch circuit and CAN transponder
Controller reenters scanning mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430765.4A CN103631363B (en) | 2013-09-22 | 2013-09-22 | Automobile data interface expanding device and method for achieving data interaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310430765.4A CN103631363B (en) | 2013-09-22 | 2013-09-22 | Automobile data interface expanding device and method for achieving data interaction |
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| Publication Number | Publication Date |
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| CN103631363A CN103631363A (en) | 2014-03-12 |
| CN103631363B true CN103631363B (en) | 2017-05-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539500B (en) * | 2014-12-31 | 2018-06-08 | 福建星海通信科技有限公司 | A kind of external device extension method of car-mounted terminal |
| CN106959682A (en) * | 2017-03-06 | 2017-07-18 | 深圳市元征软件开发有限公司 | A kind of vehicle diagnosis method, diagnosis joint, and diagnostic system |
| CN110557326B (en) * | 2018-05-30 | 2021-10-08 | 陕西重型汽车有限公司 | Vehicle-mounted intelligent remote gateway |
| CN111224866B (en) * | 2018-11-23 | 2022-07-05 | 上海汽车集团股份有限公司 | Vehicle-mounted gateway equipment |
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| CN201638377U (en) * | 2010-02-23 | 2010-11-17 | 北京协进科技发展有限公司 | OBD interface data transmission device |
| CN102694309A (en) * | 2011-03-25 | 2012-09-26 | 嵩镕精密工业股份有限公司 | On-board diagnostic (OBD) system adapter |
| CN103149915A (en) * | 2013-03-12 | 2013-06-12 | 北汽银翔汽车有限公司 | Extended function pack for automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8638207B2 (en) * | 2007-08-09 | 2014-01-28 | Drew Technologies | Modular vehicular diagnostic tool |
| US8483291B2 (en) * | 2011-06-30 | 2013-07-09 | Broadcom Corporation | Analog to digital converter with increased sub-range resolution |
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- 2013-09-22 CN CN201310430765.4A patent/CN103631363B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201638377U (en) * | 2010-02-23 | 2010-11-17 | 北京协进科技发展有限公司 | OBD interface data transmission device |
| CN102694309A (en) * | 2011-03-25 | 2012-09-26 | 嵩镕精密工业股份有限公司 | On-board diagnostic (OBD) system adapter |
| CN103149915A (en) * | 2013-03-12 | 2013-06-12 | 北汽银翔汽车有限公司 | Extended function pack for automobile |
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