CN105159190B - A kind of signal converting method of onboard diagnostic system Signal transfer box - Google Patents

A kind of signal converting method of onboard diagnostic system Signal transfer box Download PDF

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Publication number
CN105159190B
CN105159190B CN201510508182.8A CN201510508182A CN105159190B CN 105159190 B CN105159190 B CN 105159190B CN 201510508182 A CN201510508182 A CN 201510508182A CN 105159190 B CN105159190 B CN 105159190B
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China
Prior art keywords
obd
diagnostic system
onboard diagnostic
relay
transfer box
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CN105159190A (en
Inventor
路学龙
刘华敏
申瑞峰
陈智也
薛扬
陈进
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Tianze Information Industry Corp
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Tianze Information Industry Corp
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/25Pc structure of the system
    • G05B2219/25314Modular structure, modules

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

A kind of on-board automatic diagnosis system Signal transfer box of the present invention and its signal converting method are related to a kind of Signal transfer box, especially a kind of Signal transfer box for on-board automatic diagnosis system OBD.With box body, box body both sides are respectively equipped with an OBD male connector and an OBD female, and a printed circuit board is equipped in box body, are welded with CPU, relay, peripheral control circuits and the printed circuit board (PCB) for arranging needle interface on a printed circuit;CPU is connected with relay, OBD females and peripheral control circuits;ODB females and ODB male connectors are connected respectively with relay.Vehicle information is transmitted to CPU by OBD females;The pin output low and high level of CPU controls the break-make of each relay, so as to form the required communication channel access of signal transmission, realizes the wildcard of onboard diagnostic system OBD signal boxes.

Description

A kind of signal converting method of onboard diagnostic system Signal transfer box
Technical field
A kind of on-board automatic diagnosis system Signal transfer box of the present invention and its signal converting method are related to a kind of signal converting Box, especially a kind of Signal transfer box for on-board automatic diagnosis system OBD.
Background technology
Onboard diagnostic system OBD monitors the operation conditions of engine and the working condition of exhaust gas aftertreatment system at any time, and one Denier is found it is possible that the situation for causing discharge exceeded, can send warning at once.When system breaks down, trouble light (MIL) or Check that engine (Check Engine) emergency warning lamp is bright, while fault message can be stored in memory by OBD system, pass through standard Diagnostic instrments and diagnosis interface can read relevant information in the form of error code.According to the prompting of error code, maintenance personal's energy Quickly and accurately determine property and the position of failure.But the interface of current vehicle, which defines disunity, to be led to not believe an OBD Number box is applied to any one vehicle, and OBD signal box product needs is caused to re-design, waste many manpower and materials.
The content of the invention
The purpose of the present invention is part provides a kind of onboard diagnostic system Signal transfer box and its signal against the above deficiency Forwarding method, the defects of existing onboard diagnostic system OBD signal boxes is overcome to be unable to wildcard, the interconnecting device can pass through connection and turn It connects box and receives the instruction that interconnecting device issues and change relay on-off array to reach the arbitrary vehicle onboard diagnostic system OBD of adaptation The purpose of port definition.
A kind of onboard diagnostic system Signal transfer box of the present invention and its signal converting method are to take following technical scheme real Existing:
Onboard diagnostic system Signal transfer box has box body, and box body both sides are respectively equipped with an OBD male connector and mother OBD Head is equipped with a printed circuit board in box body, is welded with CPU, relay, peripheral control circuits and row on a printed circuit The printed circuit board (PCB) of needle interface;CPU is connected with relay, OBD females and peripheral control circuits;ODB females and ODB male connectors It is connected respectively with relay.
The signal converting method of onboard diagnostic system Signal transfer box, includes the following steps:
1)After computer is connected onboard diagnostic system Signal transfer box, answered by the way that the OBD of installation on computers is mating With program, the vehicle information for wanting switching is sent to onboard diagnostic system OBD signals box;
2)After onboard diagnostic system OBD signal boxes receive the vehicle information of computer transmission, by data/address bus from vehicle The vehicle information is transmitted to the OBD mothers of onboard diagnostic system Signal transfer box by the OBD male connectors for carrying diagnostic system OBD signal boxes The vehicle information is transmitted to onboard diagnostic system Signal transfer box by head, the OBD females of onboard diagnostic system Signal transfer box CPU;
3)After the CPU of onboard diagnostic system Signal transfer box receives vehicle information, reading is stored in CPU internal storages In the vehicle information binary code corresponding with relay that prestores, low and high level is exported by the pin of CPU come control respectively after The break-make of electric appliance, so as to form the required communication channel access of signal transmission.
Step 1)The connection mode of onboard diagnostic system OBD signals box and computer is USB or WIFI.
Step 3)Described in binary code include the break-make information of relay, wherein 0 represents relay and does not act, 1, which represents relay, redirects action.
By using onboard diagnostic system Signal transfer box, onboard diagnostic system OBD boxes can be conveniently applied to appoint Meaning vehicle avoids needing to redesign onboard diagnostic system OBD boxes due to vehicle changes, saves great amount of cost and time.
Description of the drawings
Below with reference to attached drawing, the invention will be further described:
Fig. 1 is the fundamental diagram of onboard diagnostic system Signal transfer box of the present invention;
Fig. 2 is the inside catenation principle figure of onboard diagnostic system Signal transfer box of the present invention.
In figure:1st, onboard diagnostic system Signal transfer box.
Specific embodiment
Referring to the drawings 1 ~ 2, onboard diagnostic system Signal transfer box has box body, and box body both sides are respectively equipped with an OBD public affairs Head and an OBD female are equipped with a printed circuit board in box body, are welded with CPU, relay, periphery on a printed circuit Control circuit and the printed circuit board (PCB) for arranging needle interface;CPU is connected with relay, OBD females and peripheral control circuits;ODB Female and ODB male connectors are connected respectively with relay.
Vehicle information is transmitted to CPU by OBD females;The pin output low and high level of CPU controls the break-make of each relay, from And the required communication channel access of signal transmission is formed, realize the wildcard of onboard diagnostic system OBD signal boxes.
The signal converting method of onboard diagnostic system Signal transfer box, includes the following steps:
1)After computer is connected onboard diagnostic system Signal transfer box, answered by the way that the OBD of installation on computers is mating With program, the vehicle information for wanting switching is sent to onboard diagnostic system OBD signals box;
2)After onboard diagnostic system OBD signal boxes receive the vehicle information of computer transmission, by data/address bus from vehicle The vehicle information is transmitted to the OBD mothers of onboard diagnostic system Signal transfer box by the OBD male connectors for carrying diagnostic system OBD signal boxes The vehicle information is transmitted to onboard diagnostic system Signal transfer box by head, the OBD females of onboard diagnostic system Signal transfer box CPU;
3)After the CPU of onboard diagnostic system Signal transfer box receives vehicle information, reading is stored in CPU internal storages In the vehicle information binary code corresponding with relay that prestores, low and high level is exported by the pin of CPU come control respectively after The break-make of electric appliance, so as to form the required communication channel access of signal transmission.
Step 3)Described in binary code include the break-make information of relay, wherein 0 represents relay and does not act, 1, which represents relay, redirects action.
Onboard diagnostic system Signal transfer box by the OBD male connectors of onboard diagnostic system Signal transfer box in use, be inserted in vehicle Onboard diagnostic system OBD signal boxes OBD females on, the ODB females of onboard diagnostic system Signal transfer box are inserted in vehicle Onboard diagnostic system OBD signal boxes OBD male connectors on.

Claims (3)

1. a kind of signal converting method of onboard diagnostic system Signal transfer box, which is characterized in that include the following steps:
1)After computer is connected onboard diagnostic system Signal transfer box, journey is applied by the way that the OBD of installation on computers is mating Sequence sends the vehicle information for wanting switching to onboard diagnostic system OBD signals box;
2)After onboard diagnostic system OBD signal boxes receive the vehicle information of computer transmission, examined by data/address bus from vehicle-mounted The vehicle information is transmitted to the OBD females of onboard diagnostic system Signal transfer box by the OBD male connectors of disconnected system OBD signal boxes, The vehicle information is transmitted to onboard diagnostic system Signal transfer box by the OBD females of onboard diagnostic system Signal transfer box CPU;
3)After the CPU of onboard diagnostic system Signal transfer box receives vehicle information, reading is stored in CPU internal storages pre- The vehicle information binary code corresponding with relay deposited exports low and high level to control each relay by the pin of CPU Break-make, so as to form the required communication channel access of signal transmission;
The onboard diagnostic system Signal transfer box has box body, and box body both sides are respectively equipped with an OBD male connector and mother OBD Head is equipped with a printed circuit board in box body, is welded with CPU, relay, peripheral control circuits and row on a printed circuit The printed circuit board (PCB) of needle interface;CPU is connected with relay, OBD females and peripheral control circuits;ODB females and ODB male connectors It is connected respectively with relay.
2. the signal converting method of onboard diagnostic system Signal transfer box according to claim 1, it is characterised in that:Step 1)The connection mode of onboard diagnostic system OBD signals box and computer is USB or WIFI.
3. the signal converting method of onboard diagnostic system Signal transfer box according to claim 1, it is characterised in that:Step 3)Described in binary code include the break-make information of relay, wherein 0 represents relay and do not act, 1 represents relay Redirect action.
CN201510508182.8A 2015-08-19 2015-08-19 A kind of signal converting method of onboard diagnostic system Signal transfer box Active CN105159190B (en)

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Application Number Priority Date Filing Date Title
CN201510508182.8A CN105159190B (en) 2015-08-19 2015-08-19 A kind of signal converting method of onboard diagnostic system Signal transfer box

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CN105159190B true CN105159190B (en) 2018-05-18

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Publication number Priority date Publication date Assignee Title
CN108128267A (en) * 2017-12-26 2018-06-08 北奔重型汽车集团有限公司 A kind of intelligence jumper wire device

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* Cited by examiner, † Cited by third party
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US8340855B2 (en) * 2008-04-22 2012-12-25 Spx Corporation USB isolation for vehicle communication interface
CN201368984Y (en) * 2008-12-05 2009-12-23 中国汽车技术研究中心 Multiple-protocol data convertor for diagnosing automobile fault
CN101430557B (en) * 2008-12-05 2012-08-08 中国汽车技术研究中心 Multi-protocol data transducer used for vehicle fault diagnosis and its diagnosis processing method
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
CN103676936A (en) * 2013-12-09 2014-03-26 北京天元晟业科技有限公司 Vehicle diagnosis test system and information transmitting method of vehicle diagnosis test system
CN204216367U (en) * 2014-05-30 2015-03-18 广州汽车集团股份有限公司 On board diagnosis interface adapter
CN104608712A (en) * 2014-12-09 2015-05-13 中山市佐敦音响防盗设备有限公司 Converter of automobile CAN bus interface
CN204925717U (en) * 2015-08-19 2015-12-30 天泽信息产业股份有限公司 On -board diagnostic system signal switching box

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Application publication date: 20151216

Assignee: JIANGSU SEA LEVEL DATA TECHNOLOGY Co.,Ltd.

Assignor: TIANZE INFORMATION INDUSTRY Corp.

Contract record no.: X2020320000015

Denomination of invention: Signal adaptation method of on-board diagnostics signal adaptation box

Granted publication date: 20180518

License type: Exclusive License

Record date: 20200518

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