CN204789806U

CN204789806U - Automotive electronics tests diagnostic tool

Info

Publication number: CN204789806U
Application number: CN201520492989.2U
Authority: CN
Inventors: 梁航; 赵号雨
Original assignee: Changchun Richness Dimension Visteon Automotive Electronics Co Ltd
Current assignee: Changchun Richness Dimension Visteon Automotive Electronics Co Ltd
Priority date: 2015-07-09
Filing date: 2015-07-09
Publication date: 2015-11-18
Anticipated expiration: 2025-07-09

Abstract

The utility model discloses an automotive electronics tests diagnostic tool, for overcoming that prior art exists that the complicacy is built by with high costs, system and the big problem of the operation degree of difficulty, it includes the main control panel (1), CAN communication circuit board (2), human -computer interaction control panel (3), LIN communication circuit board (4) and RS -232 communication circuit board (5), CAN communication circuit board (2) are connected through no. 2 CAN board interfaces (2 -1) and the main control panel (1) electricity, human -computer interaction control panel (3) are connected with 2 number word inputoutput interface (3 -6) and the main control panel (1) electricity through display interface cable (3 -8), no. 2 control inputoutput interface (3 -7), LIN communication circuit board (4) are connected through no. 2 LIN board interfaces (4 -1) and the main control panel (1) electricity, RS -232 communication circuit board (5) are connected through no. 2 RS -232 board interfaces (5 -1) and the main control panel (1) electricity.

Description

Automotive electronics testing and diagnosing instrument

Technical field

The utility model relates to a kind of instrument belonging to automotive electronics field tests, and or rather, the utility model relates to a kind of automotive electronics testing and diagnosing instrument.

Background technology

High-quality required by automobile electronics, high reliability are proposed very high requirement to automobile electronics research and development, test, checking, production, quality control and the links such as cost control and after-sales service.To the demand sharp increase of test and checking in links in production life cycle, to the problem that pressure also becomes fast lifting Products quality, of cutting operating costs in process is very important of a large amount of input of testing apparatus and the technical training work of related personnel.

First, expensive testing apparatus technical sophistication, operation easier is large, strongly professional, is suitable for researching and developing and complicated Analysis of Quality Problem, but be subject to cost and application strongly professional wait restriction cannot large-scale application to other links.And testing apparatus that links uses is dispersed large, unified system development and maintenance difficulties are comparatively large, system synchronization upgrading and follow-up training very difficult.

Secondly, in assistance client process with when analyzing a lot of conventional products problem, need to drop into more manpower and time.

Meanwhile, in the link of supplier's quality management and control, when instructing supplier or need supplier to coordinate, run into a lot of problem.First, enough testing tools cannot be provided for numerous suppliers, cause time delays; Secondly, structure and the communication instruction of the peripherals used in a lot of test relate to technical know-how content, and the management and control after providing is very difficult.Common supplier cannot be supplied to even at all, special messenger can only be sent to assist supplier to test.

At present, two kinds of modes below the test of automobile electronics and the many employings of Authentication devices:

1. each producer is according to the demand designed, designed testing apparatus of oneself product;

Because the situation of different manufacturers is all not quite similar, cannot lump together.The advantage of this way is that cost is low, and have ready-made technology to use for reference, instrument can reuse.But majority all exists the single shortcoming of equipment development object, as being applied to development or being applied to the Product Validation stage etc., require higher to the professional skill of operator, system building is complicated, usually cannot apply.

2. adopt the testing apparatus of external producer;

External testing apparatus manufacturer is a lot, the most commonly CANcase series CAN/LIN bus test instrument of Vector company, Vtsystem series hardware (I/O) testing tool, CANdela series automobiles diagnostic tool etc., and the data acquisition sequence board etc. of NI company.Meanwhile, as external in MB-tek, ART-Logic etc. integration of equipments supplier also can provide the test/verification solution of customization for user.The solution of these software and hardware integrations has very outstanding advantage, is irreplaceable even in some cases, and its technology maturation is powerful, reliable, can form omnibearing systematized test/verification solution.But the shortcoming of these schemes is also given prominence to very much.First, the equipment cost of integrated-type drops into very huge, may be popularized hardly, more cannot meet the demand of supplier and client in each link of numerous product line; Secondly, the application of the equipment of integrated-type is highly professional, also higher to the requirement of operator, and training difficulty is also relatively large; Again, because the mechanical discipline of usual this kind of integrated-type designs in order to research and development of products and Product Validation, for other application, waste resource beyond doubt.Finally, these schemes are difficult to rapid deployment and also cannot realize the quick test of namely surveying that powers on.

Summary of the invention

Technical problem to be solved in the utility model overcomes prior art to have that cost is high, system building is complicated and the problem that operation easier is large, provides a kind of automotive electronics testing and diagnosing instrument.

For solving the problems of the technologies described above, the utility model adopts following technical scheme to realize: described automotive electronics testing and diagnosing instrument comprises master control board, CAN communication circuit board, human-computer interactive control panel, LIN communication board and RS-232 communication board.

CAN communication circuit board is electrically connected with master control board by No. 2 CAN plate interfaces; Human-computer interactive control panel is electrically connected with No. 2 digital input-output interfaces and master control board by display interface device cable, No. 2 control inputs output interfaces; LIN communication board is electrically connected with master control board by No. 2 LIN plate interfaces; RS-232 communication board is electrically connected with master control board by No. 2 RS-232 plate interfaces.

CAN communication circuit board described in technical scheme to be electrically connected with master control board by No. 2 CAN plate interfaces and to refer to: CAN communication circuit board is electrically connected with in master control board a No. 1 CAN plate interface by No. 2 CAN plate interfaces.No. 2 CAN plate interfaces and No. 1 CAN plate interface are the double plug of 6 pin of the 87831 serial 2.0mm pin spacing of Molex, are defined as successively from 1 stitch to the 6th stitch: CAN data are received, and CAN data are sent out, and CAN sleeps, empty pin, 3.3V, ground; No. 1 CAN plate interface is connected by 6 core cables with between No. 2 CAN plate interfaces, namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 CAN plate interface and No. 2 CAN plate interfaces successively, the stitch one_to_one corresponding of wire size and No. 1 CAN plate interface and No. 2 CAN plate interfaces.

Human-computer interactive control panel described in technical scheme to be electrically connected with No. 2 digital input-output interfaces and master control board by display interface device cable, No. 2 control inputs output interfaces and to refer to: human-computer interactive control panel includes liquid crystal display device module, scrambler, keypad, LED light module and input and output terminal.Liquid crystal display device module is electrically connected with the display interface device in master control board by display interface device cable, scrambler, keypad are electrically connected with in master control board a No. 1 control inputs output interface by No. 2 control inputs output interfaces with LED light module, and input and output terminal is electrically connected with in master control board No. 1 digital input-output interface by No. 2 digital input-output interfaces.

Liquid crystal display device module described in technical scheme is 4.3 cun of colour liquid crystal display devices, and screen resolution is 480x272; Scrambler is EC11E15 type scrambler; Described keypad comprises " on directionkeys ", " under directionkeys ", " directionkeys is left ", " directionkeys is right " and " acknowledgement key "; Described LED light module adopts model to be the LED light of EGT801; Described input and output terminal is the double horizontal plug of 10 pin of the 5569 serial 4.2mm pin spacing of Molex, and it is connected with No. 2 digital input-output interfaces by internal bus; Described scrambler, keypad are connected with No. 2 control inputs output interfaces by internal bus with LED light module.

Display interface device described in technical scheme is the soft line wire connector of Molex54132 series 40 pins, and its 1 stitch is defined as successively to 40 stitch: V_LED+, V_LED-, ground, 3.3V, R0, R1, R2, R3, R4, R5, R6, R7, G0, G1, G2, G3, G4, G5, G6, G7, B0, B1, B2, B3, B4, B5, B6, B7, ground, DCLK, DISP, HSYNC, VSYNC, DEN, empty pin, ground, empty pin, empty pin, empty pin, empty pin; Display interface device is directly connected with display interface device cable, and namely 1 to No. 40 line of display interface device cable is connected to 1 stitch to 40 stitch of display interface device successively, the stitch one_to_one corresponding of wire size and display interface device.

Described in technical scheme No. 1 control inputs output interface and No. 2 control inputs output interfaces are 20 needle connectors of the 87831 serial 2.0mm pin spacing of Molex, are defined as successively from 1 stitch to the 20th stitch: directionkeys, under directionkeys, directionkeys is left, directionkeys is right, acknowledgement key, empty pin, scrambler B phase, selector switch A phase, selector switch B phase, selector switch C phase, selector switch D phase, selector switch E phase, empty pin, empty pin, empty pin, scrambler A phase, LED1 is enable, LED2 is enable, 3.3V with; No. 1 control inputs output interface is connected by 20 core cables with between No. 2 control inputs output interfaces, namely the two ends of 1 to No. 20 line of core are connected to 1 to No. 20 stitch of No. 1 control inputs output interface and No. 2 control inputs output interfaces successively, the stitch one_to_one corresponding of wire size and No. 1 control inputs output interface and No. 2 control inputs output interfaces.

Described in technical scheme No. 1 digital input-output interface and No. 2 digital input-output interfaces are the double plug of 10 pin of the 87831 serial 2.0mm pin spacing of Molex, are defined as successively: 5V, DIO1, DIO2 from 1 stitch to the 10th stitch, DIO3, DIO4, DIN4, DIN3, DIN2, DIN1, ground; No. 1 digital input-output interface is connected by 10 core cables with between No. 2 digital input-output interfaces, namely the two ends of 1 to No. 10 line of core are connected to 1 to No. 10 stitch of No. 1 digital input-output interface and No. 2 digital input-output interfaces successively, the stitch one_to_one corresponding of wire size and No. 1 digital input-output interface and No. 2 digital input-output interfaces.

LIN communication board described in technical scheme to be electrically connected with master control board by No. 2 LIN plate interfaces and to refer to: described LIN communication board is electrically connected with in master control board a No. 1 LIN plate interface by No. 2 LIN plate interfaces; No. 1 LIN plate interface and No. 2 LIN plate interfaces are the double plug of 6 pin of the 87831 serial 2.0mm pin spacing of Molex, are defined as successively from 1 stitch to the 6th stitch: LIN data are sent out, LIN data receipts, LIN sleep, empty pin, 3.3V and ground; No. 1 LIN plate interface is connected by 6 core cables with between No. 2 LIN plate interfaces, namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 LIN plate interface and No. 2 LIN plate interfaces successively, the stitch one_to_one corresponding of wire size and No. 1 LIN plate interface and No. 2 LIN plate interfaces.

RS-232 communication board described in technical scheme to be electrically connected with master control board by No. 2 RS-232 plate interfaces and to refer to: described RS-232 communication board is electrically connected with in master control board a No. 1 RS-232 plate interface by No. 2 RS-232 plate interfaces; No. 1 RS-232 plate interface and No. 2 RS-232 plate interfaces are the double plug of 6 pin of the 87831 serial 2.0mm pin spacing of Molex, are defined as successively from 1 stitch to the 6th stitch: serial data is sent out, serial data is received, empty pin, empty pin, 3.3V and ground; No. 1 RS-232 plate interface is connected by 6 core cables with between No. 2 RS-232 plate interfaces, namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 RS-232 plate interface and No. 2 RS-232 plate interfaces successively, the stitch one_to_one corresponding of wire size and No. 1 RS-232 plate interface and No. 2 RS-232 plate interfaces.

CAN communication circuit plate employing model described in technical scheme is the high-speed CAN communication chip of TJA1042, and the highest communication speed can reach 1Mb/s, and automotive electronics testing and diagnosing instrument is connected with the CAN interface of test product by No. 1 Interface Terminal; Described LIN communicating circuit plate adopts model to be the communication chip of TJA1021LIN, and top speed can reach 250Kb/s, and automotive electronics testing and diagnosing instrument is connected with the LIN interface of test product by No. 2 Interface Terminals; Described RS-232 communication board adopts model to be MAX232 chip, is connected with the serial ports of computing machine by No. 3 Interface Terminals.

Compared with prior art the beneficial effects of the utility model are:

1. cost is low:

The cost of automotive electronics testing and diagnosing instrument described in the utility model be generally only existing import equipment ten thousand/, the request for utilization of user can be met simultaneously;

2. simple to operate:

Automotive electronics testing and diagnosing instrument described in the utility model can reduce the complexity of system building greatly, and human-computer interaction interface is intuitively succinct, is simple and easy to use, does not need as operation import equipment, carry out specialty training and study.

Based on above-mentioned advantage, make automotive electronics testing and diagnosing instrument described in the utility model in the universal use of all links of automobile electronics, the quality control capability of product can be drastically increased.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the schematic block diagram of automotive electronics testing and diagnosing tool construction described in the utility model composition;

Fig. 2 is the schematic block diagram of master control board structure composition in automotive electronics testing and diagnosing instrument described in the utility model;

Fig. 3 is the system power supply circuit of master control board in automotive electronics testing and diagnosing instrument described in the utility model, power output terminal, input and output power switch and power input minor structure and annexation schematic diagram;

Fig. 4 is the schematic diagram of the interface conversion circuit of master control board in automotive electronics testing and diagnosing instrument described in the utility model, No. 1 digital input-output interface and No. 1 control inputs output interface structure and No. 1 digital input-output interface and No. 1 control inputs output interface and interface conversion circuit annexation;

Fig. 5 be the structure of scrambler, keypad and LED light module in the human-computer interactive control panel of automotive electronics testing and diagnosing instrument described in the utility model form and and No. 2 control inputs output interface annexation schematic diagram;

Fig. 6 is the schematic block diagram adopting automotive electronics testing and diagnosing instrument testing and diagnosing product described in the utility model;

In figure: 1. master control board, 1-1. microprocessor system circuit, 1-2. system power supply circuit, 1-3.1 digital input-output interface, 1-4. interface conversion circuit, 1-5. display interface device, 1-6.1 number control inputs output interface, 1-7. power output terminal, 1-8. input and output power switch, 1-9. power input terminal, 1-10.1 RS-232 plate interface, 1-11.1 LIN plate interface, 1-12.1 CAN plate interface, 1-13. upgrade maintenance interface, 2.CAN communication board, 2-1.2 number CAN plate interface, 2-2.1 Interface Terminal, 3. human-computer interactive control panel, 3-1. liquid crystal display device module, 3-2. scrambler, 3-3. keypad, 3-4.LED indicating lamp module, 3-5. input and output terminal, 3-6.2 digital input-output interface, 3-7.2 number control inputs output interface, 3-8. display interface device cable, 4.LIN communication board, 4-1.2 number LIN plate interface, 4-2.2 Interface Terminal, 5.RS-232 communication board, 5-1.2 number RS-232 plate interface, 5-2.3 Interface Terminal.

Embodiment

Below in conjunction with accompanying drawing, the utility model is explained in detail:

User issues the operational order such as test, control, diagnosis to test product by the human-computer interaction interface of automotive electronics testing and diagnosing instrument described in the utility model, automotive electronics testing and diagnosing instrument described in the utility model can select corresponding instruction and motion action test product to realize correlation function according to concrete product, and feedback information is shown to user by man-machine interface.User also safeguards by computing machine automotive electronics testing and diagnosing instrument described in the utility model and upgrades.

Consult Fig. 1, automotive electronics testing and diagnosing instrument includes master control board 1, CAN communication circuit board 2, human-computer interactive control panel 3, LIN communication board 4 and RS-232 communication board 5.

Described master control board 1 includes microprocessor system circuit 1-1, system power supply circuit 1-2, No. 1 digital input-output interface 1-3, interface conversion circuit 1-4, display interface device 1-5, No. 1 control inputs output interface 1-6, power output terminal 1-7, input and output power switch 1-8, power input terminal 1-9, No. 1 RS-232 plate interface 1-10, No. 1 LIN plate interface 1-11, No. 1 CAN plate interface 1-12 and upgrade maintenance interface 1-13.

Consult Fig. 2, described microprocessor system circuit 1-1 is the core circuit of master control board 1, the microprocessor of this microprocessor system circuit 1-1 have employed the kernel control chip of the Cortex-M3LPC1788 of XP company, the flash memory of this built-in chip type 512kB, the static memory device of 96kB, and independently liquid crystal display driving governor, CAN interface controller, nearly 5 road serial line interfaces; Extend out some storage resources, as the K4S561632N256Mb static memory of Samsung simultaneously; Flash memory is the model that Spansion company produces is the flash memory of S29GL064N64Mb.

Consult Fig. 3, the 12V Power convert inputted by power input terminal 1-9 is become 5V power supply by described system power supply circuit 1-2, power conversion chip is LM2595S-ADJ, afterwards, 5V Power convert is become the constant current source of 3.3V voltage source and 30mA by power supply chip LM317MBSTT3, for whole control system is powered.

No. 1 digital input-output interface 1-3 and No. 2 described digital input-output interface 3-6 is the double plug of 10 pin of the 87831 serial 2.0mm pin spacing of Molex, is defined as successively: 12V, DO1, DO2 from 1 stitch to the 10th stitch, DO3, DO4, DIN4, DIN3, DIN2, DIN1, ground; No. 1 digital input-output interface 1-3 is connected by 10 core cables with between No. 2 digital input-output interface 3-6, namely the two ends of 1 to No. 10 line of core are connected to 1 to No. 10 stitch of No. 1 digital input-output interface 1-3 and No. 2 digital input-output interface 3-6 successively, the stitch one_to_one corresponding of wire size and No. 1 digital input-output interface 1-3 and No. 2 digital input-output interface 3-6.

Consult Fig. 4, described interface conversion circuit 1-4, it passes through resistance, electric capacity, the components and parts such as diode, triode network, the digital signal that external interface inputs is converted to the digital signal that applicable microprocessor system circuit 1-1 identifies, convert the digital signal that microprocessor system circuit 1-1 exports to can drive external loading digital signal simultaneously.

Described display interface device 1-5 is the soft line wire connector of Molex54132 series 40 pins, and its 1 stitch is defined as successively to 40 stitch: V_LED+, V_LED-, ground, 3.3V, R0, R1, R2, R3, R4, R5, R6, R7, G0, G1, G2, G3, G4, G5, G6, G7, B0, B1, B2, B3, B4, B5, B6, B7, ground, DCLK, DISP, HSYNC, VSYNC, DEN, empty pin, ground, empty pin, empty pin, empty pin, empty pin; Display interface device 1-5 is directly connected with display interface device cable 3-8, and namely 1 to No. 40 line of display interface device cable 3-8 is connected to 1 stitch to 40 stitch of display interface device 1-5 successively, the stitch one_to_one corresponding of wire size and display interface device 1-5.

No. 1 control inputs output interface 1-6 and No. 2 described control inputs output interface 3-7 is 20 needle connectors of the 87831 serial 2.0mm pin spacing of Molex, is defined as successively from 1 stitch to the 20th stitch: directionkeys, under directionkeys, directionkeys is left, directionkeys is right, acknowledgement key, empty pin, scrambler B phase, selector switch A phase, selector switch B phase, selector switch C phase, selector switch D phase, selector switch E phase, empty pin, empty pin, empty pin, scrambler A phase, LED1 is enable, LED2 is enable, 3.3V with; No. 1 control inputs output interface 1-6 is connected by 20 core cables with between No. 2 control inputs output interface 3-7, namely the two ends of 1 to No. 20 line of core are connected to 1 to No. 20 stitch of No. 1 control inputs output interface 1-6 and No. 2 control inputs output interface 3-7 successively, the stitch one_to_one corresponding of wire size and No. 1 control inputs output interface 1-6 and No. 2 control inputs output interface 3-7.

Consult Fig. 3, described power output terminal 1-7 is two banana connectors of red B3 and black B4, and red is the output of 12V power supply, and black is power supply ground, and power output terminal 1-7 can provide power supply for equipment under test.Described power input terminal 1-9 is two banana connectors of red B2 and black B1, and red is the output of 12V power supply, and black is power supply ground, and power input terminal 1-9 is the power supply input interface of whole system.Described input/output switching power supply 1-8 is two power switches SW1, SW2, is used for cutting off or connect its exterior respectively and powers and the out-put supply of power output terminal 1-7.

No. 1 RS-232 plate interface 1-10 and No. 2 described RS-232 plate interface 5-1 is the double plug of 6 pin of the 87831 serial 2.0mm pin spacing of Molex, be defined as successively from 1 stitch to the 6th stitch: serial data is sent out, serial data is received, empty pin, empty pin, 3.3V and ground, No. 1 RS-232 plate interface 1-10 is connected by 6 core cables with between No. 2 RS-232 plate interface 5-1, namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 RS-232 plate interface 1-10 and No. 2 RS-232 plate interface 5-1 successively, the stitch one_to_one corresponding of wire size and No. 1 RS-232 plate interface 1-10 and No. 2 RS-232 plate interface 5-1.

No. 1 LIN plate interface 1-11 and No. 2 described LIN plate interface 4-1 is the double plug of 6 pin of the 87831 serial 2.0mm pin spacing of Molex, be defined as successively from 1 stitch to the 6th stitch: LIN data are sent out, LIN data receipts, LIN sleep, empty pin, 3.3V and ground, No. 1 LIN plate interface 1-11 is connected by 6 core cables with between No. 2 LIN plate interface 4-1, namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 LIN plate interface 1-11 and No. 2 LIN plate interface 4-1 successively, the stitch one_to_one corresponding of wire size and No. 1 LIN plate interface 1-11 and No. 2 LIN plate interface 4-1.

No. 1 CAN plate interface 1-12 and No. 2 described CAN plate interface 2-1 is the double plug of 6 pin of the 87831 serial 2.0mm pin spacing of Molex, be defined as successively from 1 stitch to the 6th stitch: CAN data are received, CAN data are sent out, CAN sleeps, empty pin, 3.3V, ground, No. 1 CAN plate interface 1-12 is connected by 6 core cables with between No. 2 CAN plate interface 2-1, namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 CAN plate interface 1-12 and No. 2 CAN plate interface 2-1 successively, the stitch one_to_one corresponding of wire size and No. 1 CAN plate interface 1-12 and No. 2 CAN plate interface 2-1.

Described upgrade maintenance interface 1-13 is the double plug of 20 pin of the 87831 serial 2.0mm pin spacing of Molex, is defined as successively: 3.3V, 3.3V, JTRST from 1 stitch to 20 stitch, ground, JTDI, ground, JTMS, ground, JTCK, ground, JRTCK, ground, JTDO, ground, RESET, ground, empty pin, ground, empty pin, ground; User can pass through this interface, this testing and diagnosing implementing procedure of upgrading.

Described CAN communication circuit plate 2 adopts the TJA1042 high-speed CAN communication chip of NXP company, the highest communication speed can reach 1Mb/s, meet the technical requirement of automobile CAN communication network, testing and diagnosing instrument is connected with the CAN interface of test product by No. 1 Interface Terminal 2-2, and No. 1 Interface Terminal 2-2 is the DB9 Male head connector of standard.

Described LIN communicating circuit plate 4 adopts the TJA1021LIN communication chip of NXP company, top speed can reach 250Kb/s, meet the technical requirement of automotive electronics LIN communication network, testing and diagnosing instrument is connected with the LIN interface of test product by No. 2 Interface Terminal 4-2, and No. 2 Interface Terminal 4-2 are the DB9 Male head connector of standard.

Described RS-232 communication board 5 adopts the MAX232 chip of Maxim, can be connected, realize communication and program updates function by No. 3 Interface Terminal 5-2 with the serial ports of computing machine.No. 3 Interface Terminal 5-2 are the DB9 Male head connector of standard.

Described human-computer interactive control panel 3 provides the interface of man-machine interaction for user; Human-computer interactive control panel 3 includes liquid crystal display device module 3-1, scrambler 3-2, keypad 3-3, LED light module 3-4 and input and output terminal 3-5.

Described liquid crystal display device module 3-1 is 4.3 cun of colour liquid crystal display devices, and screen resolution is 480x272, and it further comprises backlight module.Liquid crystal display device module 3-1 has 40 core flat flexible cables, is connected on the display interface device 1-5 of master control board 1 by this cable.Liquid crystal display device module 3-1 completes menu display, the real-time display of test instruction and tested state of electronic equipment display etc.

Consult Fig. 5, described scrambler 3-2 is EC11E15 type scrambler and 6 selector switch, and scrambler 3-2 has 30 location numbers, often encloses output 15 pulses, rotating clockwise encoder knob is the parameter values increasing the instruction of cursor position, counterclockwise then for reducing corresponding parameter.

Described keypad 3-3 comprises " on directionkeys ", " under directionkeys ", " directionkeys is left ", " directionkeys is right " and " acknowledgement key " 5 buttons.Wherein " on directionkeys, under directionkeys " is in order to change the position of cursor place menu instructions, " directionkeys is left, directionkeys is right " realizes the redirect of menu level, " directionkeys is right " for entering next stage command menu, is pressed for returning upper level command menu as pressed " directionkeys is left ".Press " acknowledgement key " afterwards system can perform the command adapted thereto of cursor position.

Described LED light module 3-4 adopts the LED light of the EGT801 model of SSC company, and LED light is used to indicate the duty of testing and diagnosing instrument, and when instruction execution or communication are carried out, communication pilot lamp can glimmer.

Described input and output terminal 3-5 is the double horizontal plug of 10 pin of the 5569 serial 4.2mm pin spacing of Molex, this interface is user interface, can provide corresponding control signal for user, it is connected with No. 2 digital input-output interface 3-6 by internal bus.

No. 2 described control inputs output interface 3-7 are connected with LED light module 3-4 with scrambler 3-2, keypad 3-3 by internal bus.

The principle of work of automotive electronics testing and diagnosing instrument described in the utility model:

With reference to Fig. 2, user can disconnect and realize working alone with the connection of computing machine after test procedure being downloaded to automotive electronics testing and diagnosing instrument described in the utility model by computing machine by the upgrade maintenance interface of testing and diagnosing instrument.Use the corresponding core of a cable of tested electronic product to be connected with automotive electronics testing and diagnosing instrument described in the utility model by tested electronic product, and connect good power lead.Liquid crystal display device module 3-1 can show the essential information of test product automatically, and user can start further operation after confirming.Also can carry out on a liquid crystal display pointing out or reporting to the police if test product goes wrong.User tests needs according to reality, the scrambler of rotary test diagnostic tool or operation respective keys, corresponding operational order or amendment command parameter is selected in indicator screen menu, complete and select and click after adjustment " confirmations " button and perform command adapted thereto, what simultaneously the communication pilot lamp meeting synchronous flashing of automotive electronics testing and diagnosing instrument showed communication carries out situation.The control command that automotive electronics testing and diagnosing instrument can be selected according to user and optimum configurations operate accordingly to test product, simultaneously can by operating result display on a liquid crystal display, user can read relevant data and information from liquid crystal display intuitively, and the real work performance situation of simultaneously observing test product completes corresponding test and diagnostic work.

Claims

1. an automotive electronics testing and diagnosing instrument, it is characterized in that, described automotive electronics testing and diagnosing instrument comprises master control board (1), CAN communication circuit board (2), human-computer interactive control panel (3), LIN communication board (4) and RS-232 communication board (5);

CAN communication circuit board (2) is electrically connected with master control board (1) by No. 2 CAN plate interfaces (2-1); Human-computer interactive control panel (3) is electrically connected with No. 2 digital input-output interfaces (3-6) and master control board (1) by display interface device cable (3-8), No. 2 control inputs output interfaces (3-7); LIN communication board (4) is electrically connected with master control board (1) by No. 2 LIN plate interfaces (4-1); RS-232 communication board (5) is electrically connected with master control board (1) by No. 2 RS-232 plate interfaces (5-1).

2. according to automotive electronics testing and diagnosing instrument according to claim 1, it is characterized in that, described CAN communication circuit board (2) to be electrically connected with master control board (1) by No. 2 CAN plate interfaces (2-1) and to refer to:

CAN communication circuit board (2) is electrically connected with No. 1 CAN plate interface (1-12) in master control board (1) by No. 2 CAN plate interfaces (2-1);

The double plug of 6 pin of the 87831 serial 2.0mm pin spacing that No. 2 CAN plate interfaces (2-1) are Molex with No. 1 CAN plate interface (1-12), is defined as from 1 stitch successively to the 6th stitch: CAN data are received, and CAN data are sent out, CAN sleeps, empty pin, 3.3V, ground; No. 1 CAN plate interface (1-12) is connected by 6 core cables with between No. 2 CAN plate interfaces (2-1), namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 CAN plate interface (1-12) and No. 2 CAN plate interfaces (2-1) successively, the stitch one_to_one corresponding of wire size and No. 1 CAN plate interface (1-12) and No. 2 CAN plate interfaces (2-1).

3. according to automotive electronics testing and diagnosing instrument according to claim 1, it is characterized in that, described human-computer interactive control panel (3) to be electrically connected with No. 2 digital input-output interfaces (3-6) and master control board (1) by display interface device cable (3-8), No. 2 control inputs output interfaces (3-7) and to refer to:

Human-computer interactive control panel (3) includes liquid crystal display device module (3-1), scrambler (3-2), keypad (3-3), LED light module (3-4) and input and output terminal (3-5);

Liquid crystal display device module (3-1) is electrically connected with the display interface device (1-5) in master control board (1) by display interface device cable (3-8), scrambler (3-2), keypad (3-3) is electrically connected with No. 1 control inputs output interface (1-6) in master control board (1) by No. 2 control inputs output interfaces (3-7) with LED light module (3-4), input and output terminal (3-5) is electrically connected with No. 1 digital input-output interface (1-3) in master control board (1) by No. 2 digital input-output interfaces (3-6).

4. according to automotive electronics testing and diagnosing instrument according to claim 3, it is characterized in that, described liquid crystal display device module (3-1) is 4.3 cun of colour liquid crystal display devices, and screen resolution is 480x272; Scrambler (3-2) is EC11E15 type scrambler; Described keypad (3-3) comprises " on directionkeys ", " under directionkeys ", " directionkeys is left ", " directionkeys is right " and " acknowledgement key "; Described LED light module (3-4) adopts model to be the LED light of EGT801; The double horizontal plug of 10 pin of the 5569 serial 4.2mm pin spacing that described input and output terminal (3-5) is Molex, it is connected with No. 2 digital input-output interfaces (3-6) by internal bus; Described scrambler (3-2), keypad (3-3) are connected with No. 2 control inputs output interfaces (3-7) by internal bus with LED light module (3-4).

5. according to automotive electronics testing and diagnosing instrument according to claim 3, it is characterized in that, described display interface device (1-5) is the soft line wire connector of Molex54132 series 40 pins, and its 1 stitch is defined as successively to 40 stitch: V_LED+, V_LED-, ground, 3.3V, R0, R1, R2, R3, R4, R5, R6, R7, G0, G1, G2, G3, G4, G5, G6, G7, B0, B1, B2, B3, B4, B5, B6, B7, ground, DCLK, DISP, HSYNC, VSYNC, DEN, empty pin, ground, empty pin, empty pin, empty pin, empty pin; Display interface device (1-5) is directly connected with display interface device cable (3-8), namely 1 to No. 40 line of display interface device cable (3-8) is connected to 1 stitch to 40 stitch of display interface device (1-5) successively, the stitch one_to_one corresponding of wire size and display interface device (1-5).

6. according to automotive electronics testing and diagnosing instrument according to claim 3, it is characterized in that, 20 needle connectors of the 87831 serial 2.0mm pin spacing that No. 1 described control inputs output interface (1-6) is Molex with No. 2 control inputs output interfaces (3-7), be defined as successively from 1 stitch to the 20th stitch: directionkeys, under directionkeys, directionkeys is left, directionkeys is right, acknowledgement key, empty pin, scrambler B phase, selector switch A phase, selector switch B phase, selector switch C phase, selector switch D phase, selector switch E phase, empty pin, empty pin, empty pin, scrambler A phase, LED1 is enable, LED2 is enable, 3.3V and ground, No. 1 control inputs output interface (1-6) is connected by 20 core cables with between No. 2 control inputs output interfaces (3-7), namely the two ends of 1 to No. 20 line of core are connected to 1 to No. 20 stitch of No. 1 control inputs output interface (1-6) and No. 2 control inputs output interfaces (3-7) successively, the stitch one_to_one corresponding of wire size and No. 1 control inputs output interface (1-6) and No. 2 control inputs output interfaces (3-7).

7. according to automotive electronics testing and diagnosing instrument according to claim 3, it is characterized in that, the double plug of 10 pin of the 87831 serial 2.0mm pin spacing that No. 1 described digital input-output interface (1-3) is Molex with No. 2 digital input-output interfaces (3-6), be defined as successively from 1 stitch to the 10th stitch: 5V, DIO1, DIO2, DIO3, DIO4, DIN4, DIN3, DIN2, DIN1, ground; No. 1 digital input-output interface (1-3) is connected by 10 core cables with between No. 2 digital input-output interfaces (3-6), namely the two ends of 1 to No. 10 line of core are connected to 1 to No. 10 stitch of No. 1 digital input-output interface (1-3) and No. 2 digital input-output interfaces (3-6) successively, the stitch one_to_one corresponding of wire size and No. 1 digital input-output interface (1-3) and No. 2 digital input-output interfaces (3-6).

8. according to automotive electronics testing and diagnosing instrument according to claim 1, it is characterized in that, described LIN communication board (4) to be electrically connected with master control board (1) by No. 2 LIN plate interfaces (4-1) and to refer to:

Described LIN communication board (4) is electrically connected with No. 1 LIN plate interface (1-11) in master control board (1) by No. 2 LIN plate interfaces (4-1);

The double plug of 6 pin of the 87831 serial 2.0mm pin spacing that No. 1 LIN plate interface (1-11) is Molex with No. 2 LIN plate interfaces (4-1), is defined as from 1 stitch successively to the 6th stitch: LIN data are sent out, LIN data receipts, LIN sleep, empty pin, 3.3V and; No. 1 LIN plate interface (1-11) is connected by 6 core cables with between No. 2 LIN plate interfaces (4-1), namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 LIN plate interface (1-11) and No. 2 LIN plate interfaces (4-1) successively, the stitch one_to_one corresponding of wire size and No. 1 LIN plate interface (1-11) and No. 2 LIN plate interfaces (4-1).

9. according to automotive electronics testing and diagnosing instrument according to claim 1, it is characterized in that, described RS-232 communication board (5) to be electrically connected with master control board (1) by No. 2 RS-232 plate interfaces (5-1) and to refer to:

Described RS-232 communication board (5) is electrically connected with No. 1 RS-232 plate interface (1-10) in master control board (1) by No. 2 RS-232 plate interfaces (5-1);

The double plug of 6 pin of the 87831 serial 2.0mm pin spacing that No. 1 RS-232 plate interface (1-10) is Molex with No. 2 RS-232 plate interfaces (5-1), is defined as from 1 stitch successively to the 6th stitch: serial data is sent out, serial data is received, empty pin, empty pin, 3.3V and; No. 1 RS-232 plate interface (1-10) is connected by 6 core cables with between No. 2 RS-232 plate interfaces (5-1), namely the two ends of 1 to No. 6 line of core are connected to 1 to No. 6 stitch of No. 1 RS-232 plate interface (1-10) and No. 2 RS-232 plate interfaces (5-1) successively, the stitch one_to_one corresponding of wire size and No. 1 RS-232 plate interface (1-10) and No. 2 RS-232 plate interfaces (5-1).

10. according to automotive electronics testing and diagnosing instrument according to claim 1, it is characterized in that, described CAN communication circuit plate (2) employing model is the high-speed CAN communication chip of TJA1042, the highest communication speed can reach 1Mb/s, and automotive electronics testing and diagnosing instrument is connected with the CAN interface of test product by No. 1 Interface Terminal (2-2); Described LIN communicating circuit plate (4) adopts model to be the communication chip of TJA1021LIN, and top speed can reach 250Kb/s, and automotive electronics testing and diagnosing instrument is connected with the LIN interface of test product by No. 2 Interface Terminals (4-2); Described RS-232 communication board (5) adopts model to be MAX232 chip, is connected with the serial ports of computing machine by No. 3 Interface Terminals (5-2).