CN103631363A - 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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- CN103631363A CN103631363A CN201310430765.4A CN201310430765A CN103631363A CN 103631363 A CN103631363 A CN 103631363A CN 201310430765 A CN201310430765 A CN 201310430765A CN 103631363 A CN103631363 A CN 103631363A
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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 realize the method for data interaction.
Background technology
OBD is the abbreviation of English On-Board Diagnostic, and translator of Chinese is " onboard diagnostic system ".It is ingredient very important in car data interface extending device.
From the eighties in 20th century, each large automobile manufacturing enterprises such as U.S., day, Europe start to be equipped with OBD on the electro jet car of its production, and the OBD at initial stage does not have self-checking function.The OBD-II more advanced than OBD produced in the mid-90 in 20th century, AIAE American institute of automobile engineers (SAE) has been formulated a set of standard criterion, require each automobile manufacturing enterprise to provide unified diagnostic mode according to the standard of OBD-II, in latter stage 90 year 20th century, the automobile that enters North America market all arranges OBD according to new standard.
OBD-II and former all onboard diagnostic system differences are strict discharge specific aim, and its essence performance is exactly by the power of monitoring automobile and the discharge that emission control systems is monitored automobile.When power or the emission control systems of automobile breaks down, likely cause carbon monoxide (CO), hydrocarbon (HC), oxynitrides or fuel evaporation contaminant capacity to surpass the standard of setting, trouble light will be lighted warning.
The feature of OBD-II: 1, unify car type diagnose connector and be shaped as 16PIN; 2, on, there is numerical analysis data transmission function (DATA LINK CONNECTOR is called for short DLC); 3, unify each car type same fault code and meaning; 4, there is drive recorder function; 5, have and again show memory diagnostic trouble code function; 6, have and can directly remove diagnostic trouble code function by instrument.
Although OBD-II is very effective to monitoring motor vehicle emission, driver accepts warning entirely with " conscious ".For this reason, the OBD-III more advanced than OBD-II produced.OBD-III fundamental purpose is that the detection, the maintenance and management that make automobile are integrated, to meet the requirement of environmental protection.OBD-III system can enter respectively in the system ECU such as engine, wheel box, ABS and go read failure code and other related data, and utilize small size communication system, such as GPS navigation system or communication by information automatic announcement administrative authoritys such as the identity code of vehicle, diagnostic trouble code and positions, administrative authority sends instruction according to the grade of this vehicular discharge problem to it, comprise the suggestion of where keeping in repair, solve the time limit of emission problem etc., also can send forbidden instruction to exceeding the violator's in time limit vehicle.Therefore, OBD-III system can not only give a warning to driver to vehicular discharge problem, and can also punish violator.The application of OBD system is the once innovation of emission standard, and the display of its function is very important for the control of vehicular discharge.
On automobile, be generally only equipped with an OBD DIU data interface unit at present, in the time of the external several terminal peripheral hardware of needs, cannot realize; Some automobile is equipped with several 0BD data-interface expanding units, but when a plurality of interfaces are used simultaneously, produces and disturb or conflict.
Therefore, need a kind of automobile electronic system that makes badly and can connect a plurality of exterior terminal equipment simultaneously, realize the car data interface extending device that the multichannel of data gathers simultaneously and the method that realizes data interaction.
Summary of the invention
First object of the present invention is to provide a kind of automobile electronic system that makes can connect a plurality of exterior terminal equipment simultaneously, realizes the car data interface extending device that the multichannel of data gathers simultaneously.
Second object of the present invention is to provide a kind of method of utilizing car data interface extending device to realize data interaction.
In order to realize above-mentioned first object, technical scheme provided by the invention is: a kind of car data interface extending device is provided, comprise: by outside OBD data-interface expanding unit, be connected with former car OBD DIU data interface unit, described outside OBD data-interface expanding unit comprises power supply, power management module, input port, data exchange circuit and some output ports, described power supply accesses and powers to described data exchange circuit and output port by described power management module together with described input port, described input port carries out data interaction by described data exchange circuit and described output port.
Described data exchange circuit comprises embedded controller, matrix switch circuit and CAN bus repeaters, described input port and output port are all connected with described CAN bus repeaters, described CAN bus repeaters is also connected with described embedded controller, and described embedded controller carries out data interaction by described matrix switch circuit by described input port and output port described in any.
Described car data interface extending device also comprises input stube cable and output stube cable, described former car OBD DIU data interface unit is connected with described outside OBD data-interface expanding unit by described input stube cable, and described outside OBD data-interface expanding unit is connected with user OBD peripheral hardware by output stube cable.
Described embedded controller comprises:
Scan module, described scan module scans one by one to the interrupt request of output port described in each;
Judge module, described judge module judges whether the described output port of current scanning has interrupt request, if so, by described input port by handover module with have the described output port of interrupt request to carry out data interaction, if not, continue to carry out current action;
Handover module, described judge module judges when described output port has interrupt request, by described matrix switch circuit and CAN bus repeaters, described input port is switched to there being the described output port of interrupt request and carries out data interaction.
Described judge module also comprises judgement has the interruption of the described output port of interrupt request whether to finish, if not, continue to carry out current action, if, by described handover module, discharge described matrix switch circuit and CAN bus repeaters, allow described embedded controller reenter scanning mode.
In order to realize above-mentioned second object, technical scheme provided by the invention is: a kind of method of utilizing car data interface extending device to realize data interaction is provided, comprises the steps:
Scanning step, scans one by one to the interrupt request of output port described in each;
Determining step, judges whether the described output port of current scanning has interrupt request, if so, by described input port by handover module with have the described output port of interrupt request to carry out data interaction, if not, continue to carry out current action;
Switch step, judges when described output port has interrupt request, by described matrix switch circuit and CAN bus repeaters, described input port is switched to there being the described output port of interrupt request and carries out data interaction.
Described determining step also comprises judgement has the interruption of the described output port of interrupt request whether to finish, if not, continue to carry out current action, if, by described handover module, discharge described matrix switch circuit and CAN bus repeaters, allow described embedded controller reenter scanning mode.
Compared with prior art, car data expanding unit of the present invention and realizing in the method for data interaction, by outside OBD interface extending device, realizing former car OBD DIU data interface unit is connected with a plurality of output ports, allow described input port carry out data interaction by described data exchange circuit and a plurality of described output port, the multichannel that has realized OBD data gathers simultaneously, and it is online to connect a plurality of OBD terminals, can realize the multiple online service demands such as remote online fault diagnosis, online vehicle data analysis simultaneously.
By following description also by reference to the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is that car data interface extending device of the present invention is used schematic diagram.
Fig. 2 is the structural representation of an embodiment of the outside OBD data-interface of the present invention expanding unit.Fig. 3 is the internal module figure of an embodiment of car data interface extending device of the present invention.
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 for utilizing car data interface extending device as shown in Figure 4 to realize the schematic diagram of an embodiment of the method for data interaction.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, in accompanying drawing, similarly element numbers represents similar element.As mentioned above, as shown in Fig. 1～5, the invention provides a kind of car data interface extending device 100, comprise: by outside OBD data-interface expanding unit 100b, be connected with former car OBD DIU data interface unit 100a, embodiment has as shown in Figure 3 provided three output ports, described outside OBD data-interface expanding unit bag 100b comprises power supply 10, power management module 20, input port 30, data exchange circuit 40 and output port 51, 52, 53, described power supply 10 accesses and passes through described power management module 20 to described data exchange circuit 40 and output port 51 together with described input port 30, 52, 53 power supplies, described input port 30 is by described data exchange circuit 40 and described output port 51, 52, 53 carry out data interaction.
As shown in Figure 3, described data exchange circuit 40 comprises embedded controller 41, matrix switch circuit 42 and CAN bus repeaters 43, described input port 30 and output port 51,52,53 are all connected with described CAN bus repeaters 43, described CAN bus repeaters 43 is also connected with described embedded controller 41, and described embedded controller 41 carries out data interaction by described matrix switch circuit 42 by described input port 30 and described output port 51,52,53.
The structural representation that is illustrated in figure 2 outside OBD data-interface expanding unit 100b, Figure 2 shows that and have an input port, and the outside OBD data-interface expanding unit 100b of four output ports.
In embodiment as shown in Figure 1, described car data interface extending device 100 also comprises input stube cable 60 and output stube cable 70, described outside OBD data-interface expanding unit bag 100b, there are 4 output ports, by described output cable 2, be connected with user OBD peripheral hardware A, B, C, D respectively.As shown in Figure 4, described embedded controller 41 comprises:
Described judge module 413 also comprises judgement has the interruption of the described output port of interrupt request whether to finish, if not, continue to carry out current action, if, by described handover module 413, discharge described matrix switch circuit 42 and CAN bus repeaters 43, allow described embedded controller 41 reenter scanning mode.
As shown in Figure 5, in order to realize above-mentioned second object, technical scheme provided by the invention is: a kind of method of utilizing car data interface extending device to realize data interaction is provided, it should be noted that, in embodiment as shown in Figure 5, described outside OBD data-interface expanding unit bag 100b used is for having three output ports, these three output ports identify with 1,2,3 respectively, method comprises the steps: it is first to start to start, allow system carry out initialization, important step comprises:
Scanning step, first to scanning one by one the interrupt request of output port 1,2,3;
Determining step, judges whether the output port of current scanning has interrupt request, if so, by described input port by handover module with have the described output port of interrupt request to carry out data interaction, if not, continue to carry out current action;
Switch step, judges when described output port 1 has interrupt request, by described matrix switch circuit and CAN bus repeaters, described input port is switched to there being the described output port of interrupt request and carries out data interaction.
Described determining step also comprises judgement has the interruption of the described output port of interrupt request whether to finish, if not, continue to carry out current action, if, by described handover module, discharge described matrix switch circuit and CAN bus repeaters, allow described embedded controller reenter scanning mode.
In conjunction with Fig. 1～5, car data expanding unit of the present invention and realizing in the method for data interaction, by outside OBD data-interface expanding unit, realizing former car OBD DIU data interface unit is connected with a plurality of output ports, allow described input port carry out data interaction by described data exchange circuit and a plurality of described output port, the multichannel that has realized OBD data gathers simultaneously, and it is online to connect a plurality of OBD terminals, can realize the multiple online service demands such as remote online fault diagnosis, online vehicle data analysis simultaneously.
Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (7)
1. a car data interface extending device, it is characterized in that, comprise: by outside OBD data-interface expanding unit, be connected with former car OBD DIU data interface unit, described outside OBD data-interface expanding unit comprises power supply, power management module, input port, data exchange circuit and some output ports, described power supply accesses and powers to described data exchange circuit and output port by described power management module together with described input port, and described input port carries out data interaction by described data exchange circuit and described output port.
2. car data interface extending device as claimed in claim 1, it is characterized in that: described data exchange circuit comprises embedded controller, matrix switch circuit and CAN bus repeaters, described input port and output port are all connected with described CAN bus repeaters, described CAN bus repeaters is also connected with described embedded controller, and described embedded controller carries out data interaction by described matrix switch circuit by described input port and output port described in any.
3. car data interface extending device as claimed in claim 1, it is characterized in that: described car data interface extending device also comprises input stube cable and output stube cable, described former car OBD DIU data interface unit is connected with described outside OBD data-interface expanding unit by described input stube cable, and described outside OBD data-interface expanding unit is connected with user OBD peripheral hardware by output stube cable.
4. car data interface extending device as claimed in claim 2, is characterized in that: described embedded controller comprises:
Scan module, described scan module scans one by one to the interrupt request of output port described in each;
Judge module, described judge module judges whether the described output port of current scanning has interrupt request, if so, by described input port by handover module with have the described output port of interrupt request to carry out data interaction, if not, continue to carry out current action;
Handover module, described judge module judges when described output port has interrupt request, by described matrix switch circuit and CAN bus repeaters, described input port is switched to there being the described output port of interrupt request and carries out data interaction.
5. car data interface extending device as claimed in claim 4, it is characterized in that: described judge module also comprises judgement has the interruption of the described output port of interrupt request whether to finish, if not, continue to carry out current action, if, by described handover module, discharge described matrix switch circuit and CAN bus repeaters, allow described embedded controller reenter scanning mode.
6. the car data interface extending device of utilization as described in claim 1-5 any one realized a method for data interaction, it is characterized in that, comprises the steps:
Scanning step, scans one by one to the interrupt request of output port described in each;
Determining step, judges whether the described output port of current scanning has interrupt request, if so, by described input port by handover module with have the described output port of interrupt request to carry out data interaction, if not, continue to carry out current action;
Switch step, judges when described output port has interrupt request, by described matrix switch circuit and CAN bus repeaters, described input port is switched to there being the described output port of interrupt request and carries out data interaction.
7. method as claimed in claim 6, it is characterized in that: described determining step also comprises judgement has the interruption of the described output port of interrupt request whether to finish, if not, continue to carry out current action, if, by described handover module, discharge described matrix switch circuit and CAN bus repeaters, allow described embedded controller reenter scanning mode.
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| 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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| 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104539500A (en) * | 2014-12-31 | 2015-04-22 | 福建星海通信科技有限公司 | External device extension method of vehicle-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 |
| CN110557326A (en) * | 2018-05-30 | 2019-12-10 | 陕西重型汽车有限公司 | vehicle-mounted intelligent remote gateway |
| CN111224866A (en) * | 2018-11-23 | 2020-06-02 | 上海汽车集团股份有限公司 | Vehicle-mounted gateway equipment |
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| US20100204878A1 (en) * | 2007-08-09 | 2010-08-12 | Michael Drew | Modular Vehicular Diagnostic Tool |
| 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 |
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| US20130007311A1 (en) * | 2011-06-30 | 2013-01-03 | Broadcom Corporation | Plc/wireless device coordinated wireless transmissions |
| 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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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100204878A1 (en) * | 2007-08-09 | 2010-08-12 | Michael Drew | Modular Vehicular Diagnostic Tool |
| 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 |
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| CN103149915A (en) * | 2013-03-12 | 2013-06-12 | 北汽银翔汽车有限公司 | Extended function pack for automobile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539500A (en) * | 2014-12-31 | 2015-04-22 | 福建星海通信科技有限公司 | External device extension method of vehicle-mounted terminal |
| 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 |
| CN110557326A (en) * | 2018-05-30 | 2019-12-10 | 陕西重型汽车有限公司 | vehicle-mounted intelligent remote gateway |
| CN110557326B (en) * | 2018-05-30 | 2021-10-08 | 陕西重型汽车有限公司 | Vehicle-mounted intelligent remote gateway |
| CN111224866A (en) * | 2018-11-23 | 2020-06-02 | 上海汽车集团股份有限公司 | Vehicle-mounted gateway equipment |
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| CN103631363B (en) | 2017-05-10 |
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