CN202389220U - Digital instrument device for power emergency vehicle - Google Patents
Digital instrument device for power emergency vehicle Download PDFInfo
- Publication number
- CN202389220U CN202389220U CN2011205054279U CN201120505427U CN202389220U CN 202389220 U CN202389220 U CN 202389220U CN 2011205054279 U CN2011205054279 U CN 2011205054279U CN 201120505427 U CN201120505427 U CN 201120505427U CN 202389220 U CN202389220 U CN 202389220U
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- China
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- vehicle
- solenoid valve
- instrument device
- digital instrument
- power emergency
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Abstract
The utility model relates to the technical field of power emergency vehicles, and discloses a digital instrument device for a power emergency vehicle. The digital instrument device comprises sensors for acquiring digital road mechanical transmission signals of the vehicle; the sensors output signals to a liquid crystal display drive circuit U2, light emitting rank drive circuits U3 and U4, and display circuits U7 and U8 through a microprocessor U1 respectively, and simultaneously output signals to a solenoid valve drive circuit U5 and a proportional solenoid valve U6; and the proportional solenoid valve U6 is connected with a flameout stray wire of the vehicle. The digital instrument device is high in display accuracy and generality, and can work stably; and the extending length of a draw bar of the solenoid valve can be changed in a proportion according to the drive voltage change, and the speed of the vehicle is changed by controlling the flameout stay wire. When the vehicle is failed, a light-emitting diode (LED) light emitting rank can accurately show the different vehicle conditions, and flickers to give an alarm.
Description
Technical field
The utility model relates to electric power wrecking car technical field, particularly a kind of electric power vehicle digital meter device of speedily carrying out rescue work.
Background technology
At present mostly electric power wrecking car instrument is that magneto-electric shows and has that electric current is big, fragile, display precision is low, and conformability is poor, linear difference precision is low, gather inflexible shortcoming; Instrument with charge, stop, turn to, headlight, lampet state display light source bulb 1-3W, have that power consumption is big, shortcomings such as heating, life-span short (having only hundreds of hours) and fault rate height; The instrument that some adopt LED to show, because the display circuit positive pole that directly uses LED and current-limiting resistance to form the Vehicular charging indicator lamp directly links to each other with electrical generator, negative earth is lighted when generator for electricity generation, extinguishes when not generating electricity, and is opposite with the requirement of standard.
Summary of the invention
In order to overcome the prior art deficiency, the purpose of the utility model provides a kind of electric power vehicle digital meter device of speedily carrying out rescue work, and can carry out that light is reported to the police and the digital meter device of the control speed of a motor vehicle to fault, make the display precision of instrument improve, and work is more stable.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of electric power vehicle digital meter device of speedily carrying out rescue work; Have collection vehicle and count the sensor of road mechanical drive signal; Through microprocessor U1 respectively with export liquid crystal display drive circuit U2, luminous row's driving circuit U3, U4 to and link to each other with display circuit U7, U8; Simultaneously with export to driving circuit for electromagnetic valve U5, the proportion magnetic valve U6 that links to each other, the flame-out backguy of said proportion magnetic valve U6 connection vehicle.
A kind of electric power vehicle digital meter device of speedily carrying out rescue work; The sensor of said several roads mechanical drive signal, by the tachogen that is used to measure engine speed, be used to measure water temperature sensor, be used to measure oil pressure sensor, the sensor that is used to measure oil mass forms.
Owing to adopted technical scheme as stated, the utlity model has following preceence:
A kind of electric power vehicle digital meter device of speedily carrying out rescue work adopts the micro controller system collection and handles various data, makes the display precision of instrument improve; And working stability; To different automobile types, when sensor changes, only with the local change of micro controller system in-to-in program; Need not to change instrument circuit and just can mate highly versatile.And can change according to driving voltage, the length that the pull bar of electromagnetic valve is stretched out changes in proportion, and pull bar links to each other with the flame-out backguy of vehicle, through controlling the speed that flame-out backguy changes vehicle.And have when vehicle produces fault, the luminous row of LED can accurately represent different vehicle conditions, and flicker is reported to the police.
Description of drawings
Fig. 1 is the electric power vehicle digital meter schematic circuit diagram of speedily carrying out rescue work.
The specific embodiment
As shown in Figure 1; A kind of electric power vehicle digital meter device of speedily carrying out rescue work; Have collection vehicle and count the sensor of road mechanical drive signal; Through microprocessor U1 respectively with export liquid crystal display drive circuit U2, luminous row's driving circuit U3, U4 to and link to each other with display circuit U7, U8, simultaneously with export to driving circuit for electromagnetic valve U5, the proportion magnetic valve U6 that links to each other, the flame-out backguy of said proportion magnetic valve U6 connection vehicle.
During work, the tachogen PORT4 that being used to of the sensor of said several roads mechanical drive signal measured engine speed links to each other with the ADC3 of microprocessor U1 micro controller system, measures engine speed.
Be used to measure water temperature sensor PORT1, measure oil pressure sensor PORT2, the sensor PORT3 that measures oil mass is connected with instrument power VCC through resistance R 1, resistance R 2, resistance R 3 series connection backs respectively; Link to each other with microprocessor U1 analog quantity input port ADC0, ADC1, ADC2 respectively simultaneously; Utilize voltage divider principle; The resistance of sensor is measured, thereby obtained the working condition of sensor.
The anodal PORT5 of vehicle battery is through resistance R 4 and resistance R 5 ground connection, and the centre tap of resistance R 4 and resistance R 5 meets microprocessor U1 analog quantity input port ADC4, utilizes voltage divider principle, and the voltage of vehicle battery is measured.
PC0, PC1, the PC2 pin of microprocessor U1 connect WS, DATA, the CS pin of LCD driving circuit U2 respectively; The PC3 of microprocessor U1, PC4, PC5 pin connect 1,8 pin of LED driver module U3 and 1 pin of LED driver module U4 respectively; LED driver module U3 links to each other with 8 pin of LED driver module U4; Give U2, U3 and U4 with the data transmission that micro controller system U1 handles; Drive Liquid Crystal Module, LED luminous row U7 and the luminous row of LED U8 respectively and show the various states of vehicles such as Vehicle Speed and engine speed, driving engine total hours worked, driving engine single hours worked, coolant water temperature, fuel liquid level, engine oil pressure, voltage in going, and can when vehicle has fault, control the luminous row of the LED warning of glimmering.The PC6 pin of micro controller system U1 meets driving circuit for electromagnetic valve U5 and links to each other with proportion magnetic valve U6; Proportion magnetic valve U6 connects the flame-out backguy of vehicle; Through the different data of PC6 pin output of micro controller system U1, make driving circuit for electromagnetic valve U5 output different voltages with different drive driving circuit for electromagnetic valve U6, because driving voltage changes; The length that the pull bar of electromagnetic valve is stretched out changes in proportion; Pull bar links to each other with the flame-out backguy of vehicle, through controlling the speed that flame-out backguy changes vehicle, detects Vehicle Speed when too fast like micro controller system; Make the flame-out backguy of pull bar pulling of driving circuit for electromagnetic valve U6 move maximum position to through PC6 foot control system driving circuit for electromagnetic valve U5 output HIGH voltage, thereby will reduce the speed of a motor vehicle.
Claims (1)
1. electric power vehicle digital meter device of speedily carrying out rescue work; It is characterized in that: have the sensor that collection vehicle is counted road mechanical drive signal; Through microprocessor U1 respectively with export liquid crystal display drive circuit U2, luminous row's driving circuit U3, U4 to and link to each other with display circuit U7, U8; Simultaneously with export to driving circuit for electromagnetic valve U5, the proportion magnetic valve U6 that links to each other, the flame-out backguy of said proportion magnetic valve U6 connection vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205054279U CN202389220U (en) | 2011-12-07 | 2011-12-07 | Digital instrument device for power emergency vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205054279U CN202389220U (en) | 2011-12-07 | 2011-12-07 | Digital instrument device for power emergency vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202389220U true CN202389220U (en) | 2012-08-22 |
Family
ID=46664167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205054279U Expired - Fee Related CN202389220U (en) | 2011-12-07 | 2011-12-07 | Digital instrument device for power emergency vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202389220U (en) |
-
2011
- 2011-12-07 CN CN2011205054279U patent/CN202389220U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20121207 |