CN100375125C - Vehicle-state monitoring and fault diagnosis apparatus - Google Patents
Vehicle-state monitoring and fault diagnosis apparatus Download PDFInfo
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- CN100375125C CN100375125C CNB2004100379688A CN200410037968A CN100375125C CN 100375125 C CN100375125 C CN 100375125C CN B2004100379688 A CNB2004100379688 A CN B2004100379688A CN 200410037968 A CN200410037968 A CN 200410037968A CN 100375125 C CN100375125 C CN 100375125C
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Abstract
The present invention relates to a vehicle-state monitoring and fault diagnosis apparatus which belongs to the technical field of electronic apparatuses of vehicles. The vehicle-state monitoring and fault diagnosis apparatus comprises a power supply module, a signal adapter, a signal input apparatus, a liquid crystal display screen, a voltage change controller of the liquid crystal screen, and a vehicular microcomputer, wherein the power supply module is used for supplying power for each module in the apparatus; the signal adapter is used for receiving data from a local network bus of an inner controller of a vehicle and sending the data to the vehicular microcomputer through a serial port; the signal input apparatus is used for inputting control signals towards the vehicular microcomputer; the liquid crystal display screen is used for receiving display signals of the vehicular microcomputer; the voltage change controller of the liquid crystal screen is used for supplying the power for the liquid crystal screen; the vehicular microcomputer is used for receiving input signals of the adapter, etc. After the input signals are processed, the liquid crystal display screen is used for displaying vehicle-state information and fault information. A loudspeaker can be used for prompting sound for saving state parameters and fault data. The apparatus of the present invention makes the vehicle monitoring and diagnosis apparatus used as one vehicular electronic apparatus to be installed on a vehicular instrument panel, and provides driving information towards driving personnel in the process of drive.
Description
Technical field
The present invention relates to a kind of vehicle condition monitoring and trouble-shooter, belong to the vehicle electronics technical field.
Background technology
The existing device that is used for vehicle condition monitoring and fault diagnosis, design based on single-chip microcomputer mostly, as " microcomputer development " Vol.13 No.7, July 2003, disclosed technology in " design based on the HEV data acquisition display apparatus of CAN bus realizes " literary composition, and its structured flowchart is as shown in Figure 1, this system is that the center is designed with the AT89C52 single-chip microcomputer, display interface device is the parallel port data line, and single-chip microcomputer sends display command, display text or figure on screen.The RS232 interface is used for carrying out communication with PC.This device can be accepted the data of PC, also can import the data of self in the PC into.AT89C52 is the single-chip microcomputer of atmel corp, and it calculates and input and output data as central processing unit.RAM is a data storage cell.By clock unit, single-chip microcomputer can provide the function of clock control and demonstration to driver and crew.The CAN interface is the vehicle condition information source as this device, by car load CAN network, can obtain the various state parameters of vehicle.Keyboard interface then can be realized human-computer interaction function.This device is owing to be based on the design of single-chip microcomputer, and employed Presentation Function is limited, can only show some simple literal and regular figures; In addition, the processing of single-chip microcomputer, computing function are also very limited.Simultaneously, design adopts keyboard as the man-machine interaction instrument, and not only input mode is limited, and uses very inconvenient under vehicle-mounted application conditions.
Summary of the invention
The objective of the invention is to propose a kind of vehicle condition monitoring and trouble-shooter, employing is the hardware configuration at center with the vehicle-mounted microcomputer, to be implemented in vehicle condition monitoring and the fault diagnosis under the vehicular applications condition, and provide various vehicle condition information and failure diagnosis information to the driver, carry out man-machine interaction easily.
That the present invention proposes and trouble-shooter comprises:
(1) power module is used for signal adapter, vehicle-mounted microcomputer, signal input apparatus and liquid crystal display transformation controller are powered;
(2) signal adapter is used for receiving data from the Controller Area Network BUS of vehicle interior, and is sent to vehicle-mounted microcomputer by serial ports;
(3) signal input apparatus is used for to the vehicle-mounted microcomputer input control signal;
(4) LCDs is used to receive the shows signal of vehicle-mounted microcomputer, shows the state parameter and the fault diagnosis result of vehicle;
(5) liquid crystal display transformation controller is used for 12 volts of DC voltage that power module provides are converted to the required High Level AC Voltage of liquid crystal display;
(6) vehicle-mounted microcomputer is used to accept the input signal of above-mentioned signal adapter, signal input apparatus, shows vehicle condition information and failure message by LCDs after treatment, and carries out auditory tone cues by loudspeaker, and state parameter and fault data are stored.
Signal adapter in the said apparatus comprises:
Single-chip microcomputer (U0) is used to accept the information from the controller chip of controller local area network, and it is sent to vehicle-mounted microcomputer by serial ports;
Controller chip (U1) is used to receive the information on the vehicle control device LAN (Local Area Network), sends it to single-chip microcomputer (U0);
Two light-coupled isolation devices (U2 and U3), the antijamming capability when being used for the enhancement controller chip and receiving and sending messages;
Transponder chip (U4) is used for and will realizes conversion between the voltage of the transmission of controller chip (U1) and acknowledge(ment) signal and the Controller Area Network BUS voltage;
Converter (U5) is used for the voltage transitions of single-chip microcomputer (U0) serial ports is become the voltage of vehicle-mounted microcomputer serial ports;
First crystal resonator (U6) is used for providing the crystal oscillator signal to controller chip (U1);
Second crystal resonator (U7) is used for providing the crystal oscillator signal to single-chip microcomputer (U0).
Signal input apparatus in the said apparatus can coil, be used for driver and crew by keyboard to the vehicle-mounted microcomputer input control signal.Also can be touch-screen, be used for driver and crew and click touch-screen, to the vehicle-mounted microcomputer input control signal.
Said apparatus can also comprise loudspeaker, is used to receive the voice signal of vehicle-mounted microcomputer, and the state and the fault of vehicle are carried out auditory tone cues.
Vehicle condition monitoring and trouble-shooter that the present invention proposes, making vehicle monitoring and diagnostic device can be used as vehicle electronics is installed on the panel board of vehicle, thereby the function to traditional meter panel of motor vehicle plays booster action well, can provide driving information to driver and crew in the process of moving.Because system designs under the WINDOWNS-CE platform, can realize various human-computer interaction functions more easily.
Description of drawings
Fig. 1 is the structured flowchart of existing vehicle condition monitoring and trouble-shooter.
Vehicle condition monitoring and trouble-shooter structured flowchart that Fig. 2 proposes for the present invention.
Fig. 3 is the circuit theory diagrams of signal adapter.
Embodiment
Device of the present invention, its structured flowchart as shown in Figure 2, power module wherein is the DC level modular converter of wide voltage input commonly used.Owing to can only use the accumulator level power supply of 12V under the vehicle-mounted condition, by power module, can obtain stable 12 volts and 5 volts voltage, signal adapter, vehicle-mounted microcomputer, signal input apparatus and liquid crystal display transformation controller are powered.
Signal adapter in this device is realized the signal converting between controller local area network and the rs 232 serial interface signal, and it can accept data from the Controller Area Network BUS of vehicle interior, sends to vehicle-mounted microcomputer by serial ports then.Fig. 3 is the circuit theory diagrams of signal adapter.Wherein, U0 is the single-chip microcomputer of AT89C51 for the model that ATEML company produces, and it accepts the information from the controller local area network controller chip, and it is sent to vehicle-mounted microcomputer by serial ports.U1 is that the model that PHILIPS Co. produces is the chip of SJA1000, and its function is the information of accepting on the vehicle control device LAN (Local Area Network), sends it to U0 (AT89C51).U2 and U3 are two light-coupled isolation devices, and model is 6N137, and its effect is the antijamming capability that strengthens SJA1000 chip transmitting-receiving CAN information.U4 is the transponder chip of controller local area network, and PHILIPS Co. produces, and model is 82C250, and its function is that the voltage of the transmission of SJA1000 and acknowledge(ment) signal and Controller Area Network BUS voltage are changed.The function of U5 is the voltage that the voltage transitions of microcontroller serial port is become the vehicle-mounted microcomputer serial ports.Model is MAX232, and MAXIM company produces.U6 is common 4 pin crystal oscillators, is 16MHz, provides the crystal oscillator signal to the SJA1000 chip.U7 is that common 4 pin crystal shake, and is 11.0592MHz, provides the crystal oscillator signal to AT89C51.J1 is the controller local area network joint, and J2 is the serial ports joint.J3 is an expansion interface.J4 is a power interface.
Signal input apparatus in apparatus of the present invention is used for to the vehicle-mounted microcomputer input control signal, can be touch-screen or keyboard.Touch-screen can be realized man-machine interaction, and driver and crew are shielded by clicking, and realizes the input of operational order by touch screen controller.This touch-screen is bought from Guangzhou Hua Yi company, and model is EEH.The effect of touch screen controller is to accept to touch through finger to touch and the electric signal of generation, sends it to vehicle-mounted microcomputer then, and vehicle-mounted microcomputer can be judged the position that the finger point touches according to this signal.The electric company of prosperous frontlighting buys touch screen controller from Guangzhou, and model is ETB-PB-029C.Keyboard is the input media of a choosing dress, can accept input signal, and auxiliary touch-screen is realized man-machine interaction.Keyboard can adopt common PC keyboard, also can adopt the membrane keyboard of band keyboard controller.
The effect of LCDs (hereinafter to be referred as LCD) is to show the various state parameters of vehicle and the result of fault diagnosis to driver and crew.It is the resolution of 640 * 480 pixels, links to each other with vehicle-mounted microcomputer by the LCD data line.LCDs is bought from LG Corp of South Korea, and model is LPV064V2.
Liquid crystal display transformation controller is converted to the needed High Level AC Voltage of liquid crystal display with 12 volts of DC voltage that power module provides.This module is bought from Japan spring field company, and model is TP1-01-0110.
The effect of vehicle-mounted microcomputer is the input signal of accepting from breakout box, touch screen controller and keyboard, as calculated, handle the back and show vehicle condition information and failure message by LCDs, and can carry out auditory tone cues by loudspeaker, simultaneously, can also carry out nonvolatil stored record to data.Vehicle-mounted microcomputer is compared powerful many with general single-chip microcomputer, because its adopts WINDOWS-CE operating system, make exploitation be more prone to, function is more complete, except existing these parts, can also be according to actual needs, expansion USB device and car entertainment facility etc.The vehicle-mounted microcomputer that this device adopts grinds magnificent company and buys from Taiwan, model is PCM5820.
Vehicle-mounted microcomputer in this device is the embedded onboard microcomputer, and is different with common desktop personal computer, uses the WINDOWS CE operating system of Microsoft.
Apparatus of the present invention can also comprise loudspeaker, and employing power is that the ventional loudspeakers of 2W gets final product, and is directly connected on the vehicle-mounted microcomputer.
Claims (6)
1. a vehicle condition is monitored and trouble-shooter, it is characterized in that this device comprises:
(1) power module is used for signal adapter, vehicle-mounted microcomputer, signal input apparatus and liquid crystal display transformation controller are powered;
(2) signal adapter is used for receiving data from the Controller Area Network BUS of vehicle interior, and is sent to vehicle-mounted microcomputer by serial ports;
(3) signal input apparatus is used for to the vehicle-mounted microcomputer input control signal;
(4) LCDs is used to receive the shows signal of vehicle-mounted microcomputer, shows the state parameter and the fault diagnosis result of vehicle;
(5) liquid crystal display transformation controller is used for 12 volts of DC voltage that power module provides are converted to the required High Level AC Voltage of liquid crystal display;
(6) vehicle-mounted microcomputer is used to accept the input signal of above-mentioned signal adapter, signal input apparatus, shows vehicle condition information and failure message by LCDs after treatment, and carries out auditory tone cues by loudspeaker, and state parameter and fault data are stored.
2. device as claimed in claim 1 is characterized in that wherein said signal adapter comprises:
Single-chip microcomputer (U0) is used to accept the information from the controller chip of controller local area network, and it is sent to vehicle-mounted microcomputer by serial ports;
Controller chip (U1) is used to receive the information on the vehicle control device LAN (Local Area Network), sends it to single-chip microcomputer (U0);
Two light-coupled isolation devices (U2 and U3), the antijamming capability when being used for the enhancement controller chip and receiving and sending messages;
Transponder chip (U4) is used for and will realizes conversion between the voltage of the transmission of controller chip (U1) and acknowledge(ment) signal and the Controller Area Network BUS voltage;
Converter (U5) is used for the voltage transitions of single-chip microcomputer (U0) serial ports is become the voltage of vehicle-mounted microcomputer serial ports;
First crystal resonator (U6) is used for providing the crystal oscillator signal to controller chip (U1);
Second crystal resonator (U7) is used for providing the crystal oscillator signal to single-chip microcomputer (U0).
3. device as claimed in claim 1 is characterized in that wherein said signal input apparatus is a keyboard, be used for driver and crew by keyboard to the vehicle-mounted microcomputer input control signal.
4. device as claimed in claim 1 is characterized in that wherein said signal input apparatus is a touch-screen, is used for driver and crew and clicks touch-screen, to the vehicle-mounted microcomputer input control signal.
5. device as claimed in claim 1 is characterized in that described vehicle-mounted microcomputer is the embedded onboard microcomputer.
6. device as claimed in claim 1 is characterized in that also comprising loudspeaker, is used to receive the voice signal of vehicle-mounted microcomputer, and the state and the fault of vehicle are carried out auditory tone cues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100379688A CN100375125C (en) | 2004-05-18 | 2004-05-18 | Vehicle-state monitoring and fault diagnosis apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100379688A CN100375125C (en) | 2004-05-18 | 2004-05-18 | Vehicle-state monitoring and fault diagnosis apparatus |
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| CN1581237A CN1581237A (en) | 2005-02-16 |
| CN100375125C true CN100375125C (en) | 2008-03-12 |
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| CNB2004100379688A Expired - Fee Related CN100375125C (en) | 2004-05-18 | 2004-05-18 | Vehicle-state monitoring and fault diagnosis apparatus |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477371A (en) * | 2008-01-05 | 2009-07-08 | 深圳市元征软件开发有限公司 | Apparatus and method for reading, recording and analyzing data of vehicle electric control system |
| CN101546483B (en) * | 2008-03-26 | 2010-12-08 | 中国科学院自动化研究所 | System and method for fault diagnosis of traffic signal controller |
| US8649533B2 (en) * | 2009-10-02 | 2014-02-11 | Ford Global Technologies, Llc | Emotive advisory system acoustic environment |
| CN106020173A (en) * | 2016-07-14 | 2016-10-12 | 湖南纽帕科技有限公司 | Vehicle-mounted fault detection instrument and electric vehicle |
Citations (7)
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|---|---|---|---|---|
| GB2125578A (en) * | 1982-08-16 | 1984-03-07 | Nissan Motor | Self monitoring system |
| US4694408A (en) * | 1986-01-15 | 1987-09-15 | Zaleski James V | Apparatus for testing auto electronics systems |
| FR2628558A1 (en) * | 1988-03-14 | 1989-09-15 | Scl Security Computer Line Srl | Self-contained security monitoring and alarm system - is used in home, vehicles, office contains microprocessor and sensors which monitor for almost every eventuality |
| US5617343A (en) * | 1989-05-02 | 1997-04-01 | Norand Corporation | Portable work station and data collection terminal including switchable multi purpose touch screen display |
| CN1305909A (en) * | 2001-01-19 | 2001-08-01 | 倚天资讯股份有限公司 | Information control system of traffic means |
| CN1338684A (en) * | 2000-08-11 | 2002-03-06 | 四川天盛科技实业总公司电子研究所 | Vehicle-carried computer device and design method of its software |
| JP2004083005A (en) * | 2002-07-05 | 2004-03-18 | Honda Motor Co Ltd | Meter device for vehicle |
-
2004
- 2004-05-18 CN CNB2004100379688A patent/CN100375125C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2125578A (en) * | 1982-08-16 | 1984-03-07 | Nissan Motor | Self monitoring system |
| US4694408A (en) * | 1986-01-15 | 1987-09-15 | Zaleski James V | Apparatus for testing auto electronics systems |
| FR2628558A1 (en) * | 1988-03-14 | 1989-09-15 | Scl Security Computer Line Srl | Self-contained security monitoring and alarm system - is used in home, vehicles, office contains microprocessor and sensors which monitor for almost every eventuality |
| US5617343A (en) * | 1989-05-02 | 1997-04-01 | Norand Corporation | Portable work station and data collection terminal including switchable multi purpose touch screen display |
| CN1338684A (en) * | 2000-08-11 | 2002-03-06 | 四川天盛科技实业总公司电子研究所 | Vehicle-carried computer device and design method of its software |
| CN1305909A (en) * | 2001-01-19 | 2001-08-01 | 倚天资讯股份有限公司 | Information control system of traffic means |
| JP2004083005A (en) * | 2002-07-05 | 2004-03-18 | Honda Motor Co Ltd | Meter device for vehicle |
Non-Patent Citations (1)
| Title |
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| 车载状态监测与故障诊断专家系统设计. 余祖俊，许西宁，史红梅，高松峰，刘同锋.测控技术，第20卷第11期. 2001 * |
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| CN1581237A (en) | 2005-02-16 |
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Granted publication date: 20080312 Termination date: 20190518 |