CN201677754U - Automobile electronic combined instrument - Google Patents
Automobile electronic combined instrument Download PDFInfo
- Publication number
- CN201677754U CN201677754U CN2009202892949U CN200920289294U CN201677754U CN 201677754 U CN201677754 U CN 201677754U CN 2009202892949 U CN2009202892949 U CN 2009202892949U CN 200920289294 U CN200920289294 U CN 200920289294U CN 201677754 U CN201677754 U CN 201677754U
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- instrument
- automobile electronic
- parameter setting
- electronic combined
- circuit
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Abstract
The name of the utility model relates to an automobile electronic combined instrument. The automobile electronic combined instrument belongs to the technical field of automobile instrument display device and mainly solves the problems as follows: when the parameters of the current instrument need to be changed, only a programmer specially writing the instrument drive can go to the field to correct the original code of the instrument or dismount the instrument to correct, which not only has low efficiency, but also wastes human resources and materials, thus being unbeneficial for after sales maintenance. The main characteristics of the automobile electronic combined instrument are as follows: the automobile electronic combined instrument includes the circuit board of the instrument, an instrument bracket, a dial, an instrument pointer, a stepping motor, an inserter, keys, a pen section liquid crystal screen, a shell, a liner and glass; a parameter setting system is also arranged on the circuit board of the instrument; and the parameter setting system consists of a parameter setting interface, a parameter writing interface, a microcontroller used for two-machine communication, a first level switching circuit, a second level switching circuit, and an EEPROM. After sales personnel with certain knowledge can correct the software parameters and the original code of the instrument is not needed to be corrected. The utility model is mainly used for automobile electronic combined instruments.
Description
Technical field
The utility model belongs to auto meter display device technology field.Be specifically related to a kind of vehicle electronics combination instrument.
Background technology
Existing most of commercial vehicle/comm..vehicle combination instruments generally all are made of members such as the wiring board that contains microcontroller, calibrated disc, meter hand, stepping motor, connector, button, a segmentation liquid crystal display and shell, liner plate, glass.Wherein, if when car load factory because emat sensor more, or because the parameter matching of instrument is unpunctual, can only go to the make amendment former code of instrument software or tear back instrument correction open of scene by the programmer who writes this instrument drive specially, not only efficient is not high, and the consumption manpower and materials are unfavorable for after-sales service.
Summary of the invention
The purpose of this utility model be exactly provide at above-mentioned weak point a kind of with the instrument parameter setting system, be convenient to the vehicle electronics combination instrument of after-sales service.
Technical solution of the present utility model is: a kind of vehicle electronics combination instrument, comprise instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, button, pen section liquid crystal display and shell, liner plate, glass, it is characterized in that: described instrument circuit board is provided with the instrument parameter setting system; Wherein, the instrument parameter setting system is made of write parameters interface, the microcontroller that is used for two machine communication, first level shifting circuit, second level shifting circuit, eeprom circuit.
Pen section liquid crystal display described in the technical solution of the present utility model adopts the wide LCDs of a segmentation.
Button described in the technical solution of the present utility model be about each one button that can press left rotation and right rotation operation.
First level shifting circuit described in the technical solution of the present utility model is made up of current-limiting resistance, filter capacitor and first level transferring chip; Second level shifting circuit is made up of pull-up resistor, current-limiting resistance and second level transferring chip.
The utility model is provided with the instrument parameter setting system of forming at the interface owing to setting up by datel circuit module and instrument parameter on existing vehicle electronics combination instrument basis, wherein, data communication power supply road module is made of write parameters interface, the microcontroller that is used for two machine communication, first level shifting circuit, second level shifting circuit, EEPROM.Information such as pen section liquid crystal display display automobile travelled distance number, clock, date, voltage, engine oil pressure, displaying contents is abundant, and compared with the dot lcd screen price advantage is arranged more under the precondition that realizes said function.Also can the interface be set by the parameter that is provided with on the PC, is Transistor-Transistor Logic level through level conversion IC with the RS232 level conversion, the parameter of required modification is transferred to the microcontroller that is used for two machine communication by serial ports, the microcontroller and the instrument microcontroller MCU that are used for two machine communication communicate, each supplemental characteristic that parameter is provided with in the interface writes in the EEPROM of specified address, and instrument is according to the parameter that writes the data modification instrument in the EEPROM.The utlity model has the characteristics of being with the instrument parameter setting system, being convenient to after-sales service, the past-sale service personnel that only need possess certain knowledge just can arrive the scene with notebook PC and carry out the modification of software parameter, and do not need the former code of instrument is made amendment.The utility model is mainly used in the vehicle electronics combination instrument.
Description of drawings
Fig. 1 is a front elevation of the present utility model;
Fig. 2 is that the utility model shows oil pressure, voltage, short biography mileage number, amounts to mileage number, clock, the liquid crystal diagrammatic sketch on date;
Fig. 3 is that the utility model instrument parameter is provided with interface 1 scheme drawing;
Fig. 4 is that the utility model instrument parameter is provided with interface 2 scheme drawings;
Fig. 5 is the utility model instrument parameter setting system;
Fig. 6 is a structural representation of the present utility model.
The specific embodiment
As Fig. 1, shown in Figure 6.The vehicle electronics combination instrument is made up of members such as wiring board 1, instrument support 2, calibrated disc 3, meter hand 4, stepping motor 5, connector 6, button 7, pen section liquid crystal display 8 and shell 11, liner plate 10, glass 9, panels 12.
As shown in Figure 2.Pen section liquid crystal display 8 is the wide LCDs of a segmentation, shows oil pressure, voltage, short biography mileage number, amounts to mileage number, clock, the liquid crystal diagrammatic sketch on date.
As Fig. 3, Fig. 4, shown in Figure 5.Parameter setting system is made of write parameters interface 13, the microcontroller IC2 as two machine communication, first level shifting circuit 14, second level shifting circuit 15, eeprom circuit 12.Write parameters interface 13 is made up of integrated circuit and peripheral component.Microcontroller as two machine communication is made of M3062100 microcontroller IC2.First level shifting circuit 14 is made up of current-limiting resistance, filter capacitor and the first level transferring chip IC4; Second level shifting circuit 15 is made up of pull-up resistor, current-limiting resistance and the second level transferring chip IC3.Eeprom circuit 12 is made of the EEPROM integrated circuit.By the parameter that is provided with on the PC interface is set, the parameter of required modification after being Transistor-Transistor Logic level with the RS232 level conversion, the first level transferring chip IC4 is transferred to the M3032100 microcontroller IC2 that is used for two machine communication, second level shifting circuit of forming via the second level transferring chip IC3, pull-up resistor, current-limiting resistance is converted to the CMOS level with Transistor-Transistor Logic level again.M3062100 microcontroller IC2 and MB90F927 instrument micro controller system IC1 communicate, and each supplemental characteristic that parameter is provided with in the interface writes in the EEPROM of specified address.Thereby MB90F927 instrument micro controller system IC1 is according to writing the purpose that the interior data of EEPROM reach the parameter of revising instrument.
Claims (4)
1. vehicle electronics combination instrument, comprise instrument circuit board (1), instrument support (2), calibrated disc (3), meter hand (4), stepping motor (5), connector (6), button (7), pen section liquid crystal display (8) and shell (11), liner plate (10), glass (9), panel (12), it is characterized in that: described instrument circuit board (1) is provided with the instrument parameter setting system; Wherein, the instrument parameter setting system is made of write parameters interface (13), the microcontroller (IC2) that is used for two machine communication, first level shifting circuit (14), second level shifting circuit (15), eeprom circuit (12).
2. according to claims 1 described a kind of vehicle electronics combination instrument, it is characterized in that: described pen section liquid crystal display (8) adopts the wide LCDs of a segmentation.
3. according to claims 1 or 2 described a kind of vehicle electronics combination instruments, it is characterized in that: described button (7) be about each one button that can press left rotation and right rotation operation.
4. according to claims 1 or 2 described a kind of vehicle electronics combination instruments, it is characterized in that: described first level shifting circuit (14) is made up of current-limiting resistance, filter capacitor and first level transferring chip (IC4); Second level shifting circuit (15) is made up of pull-up resistor, current-limiting resistance and second level transferring chip (IC3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202892949U CN201677754U (en) | 2009-12-18 | 2009-12-18 | Automobile electronic combined instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202892949U CN201677754U (en) | 2009-12-18 | 2009-12-18 | Automobile electronic combined instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201677754U true CN201677754U (en) | 2010-12-22 |
Family
ID=43342811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202892949U Expired - Fee Related CN201677754U (en) | 2009-12-18 | 2009-12-18 | Automobile electronic combined instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201677754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213582A (en) * | 2020-09-29 | 2021-01-12 | 北京智芯微电子科技有限公司 | Detection system, detection method, detection device and storage medium for electronic module |
-
2009
- 2009-12-18 CN CN2009202892949U patent/CN201677754U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213582A (en) * | 2020-09-29 | 2021-01-12 | 北京智芯微电子科技有限公司 | Detection system, detection method, detection device and storage medium for electronic module |
| CN112213582B (en) * | 2020-09-29 | 2024-05-10 | 北京智芯微电子科技有限公司 | Detection system, detection method, detection device and storage medium for electronic module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Free format text: FORMER NAME: DONGFENG XIANGFAN INSTRUMENT SYSTEMS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 441001 No. 227 East Daqing Road, Hubei, Xiangyang Patentee after: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Address before: 441001 No. 227 East Daqing Road, Hubei, Xiangfan Patentee before: Dongfeng Xiangfan Instrument Systems Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20161218 |