CN2809593Y

CN2809593Y - Speedometer

Info

Publication number: CN2809593Y
Application number: CN 200420061739
Authority: CN
Inventors: 陈光辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-22
Filing date: 2004-10-22
Publication date: 2006-08-23
Anticipated expiration: 2014-10-22

Abstract

The utility model relates to a speedometer, which comprises a pointer, a digital display and a mileage totalizing meter display, wherein the pointer indicates the vehicle speed; the digital display displays the vehicle speed. Three pairs of lighting diodes are installed in a speedometer. The lighting diodes are DF1, DF2, DF3, DF4, DF5, DF6 which respectively send out green light, yellow light and red light. An SCM sets the vehicle speed in three ranges such as the low-speed range 0 to 80 KM/h, the middle-speed range 80 to 120 KM/h and the high-speed range 120 to 180 KM/h. When the vehicle runs in the low-speed range, the SCM sends out a demand signal so as to lead the diodes DF1 and DF2 to emit the green light, and the backlight region in the speedometer presents green. When the vehicle runs in the middle-speed range, the SCM sends out a demand signal so as to lead the diodes DF3 and DF4 to emit the yellow light, and the backlight region in the speedometer presents yellow. When the vehicle runs in the high-speed range, the SCM sends out a demand signal so as to lead the diodes DF5 and DF6 to emit the red light, and the backlight region in the speedometer presents red. A driver is capable of easily knowing the vehicle speed range of the vehicle which runs by color change in the speedometer, intently drives, is favorable for safely running and leads the instrument to be grand and handsome.

Description

Speedometer

Technical field

The utility model relates to the improvement of speedometer, and particularly the improvement of automobile speed mileometer belongs to meters.

Background technology

Existing automobile odometer, normally the speed of a motor vehicle of pointer instrument indication running car or numeral show the speed of a motor vehicle, the accumulative total total kilometres are recorded on the mileometer.The driver can not pass through instrument background large tracts of land change in color, can know the scope of the running car speed of a motor vehicle easily, disperses driving demand power, is disadvantageous to traffic safety.

Summary of the invention

The purpose of this utility model is just to be to solve the deficiency that above-mentioned automobile odometer exists, and a kind of speedometer with background large tracts of land colour scale running car vehicle speed range is provided.

The scheme that the utility model technical matters solves is: a kind of automobile odometer, comprise that the pointer indication speed of a motor vehicle, numeral show that the speed of a motor vehicle and mileage counting show, it is characterized in that in speedometer, being equipped with the different light emitting diode of several colors, vehicle speed range of every kind of colour scale, described light emitting diode is DF1, DF2 by three pairs; DF3, DF4; DF5, DF6 constitute, send green glow, gold-tinted, ruddiness respectively, 3. single-chip microcomputer is set at three vehicle speed ranges to the speed of a motor vehicle, be low-speed range 0～80Km/h, moderate speed range 80～120Km/h, high-speed range 120～180Km/h, when running car during in low-speed range, 3. single-chip microcomputer sends command signal, makes luminous green diode DF1, DF2 bright, and makes the backlight region 3 of table present green; When running car during in moderate speed range, 3. single-chip microcomputer sends command signal, makes luminous gold-tinted diode DF3, DF4 bright, and makes the backlight region 3 of table present yellow; When running car during in high-speed range, 3. single-chip microcomputer sends command signal, makes luminous red diodes DF5, DF6 bright, and makes the backlight region 3 of table present redness.

The beneficial effects of the utility model are, the driver is from three kinds of promptly green, yellow, the red background large tracts of land of color change color of speedometer, just can know easily running car is at which vehicle speed range, promptly green is low-speed range 0～80Km/h, and yellow is moderate speed range 80～120Km/h, and redness is high-speed range 120～180Km/h, the driver can know the current vehicle speed scope like a cork, main energy is all concentrated in the driving safety that helps driving a vehicle, instrument luxurious, the daring that also seems simultaneously.

Description of drawings

Fig. 1 is the utility model instrument synoptic diagram.Vehicle speed range section 1, speed of a motor vehicle pointer 2, backlight region 3, mileage shows 4, and the speed of a motor vehicle shows 5, and clock shows 6.

Fig. 2 is the utility model electrical schematic diagram

Embodiment

Below with reference to the accompanying drawing description detailed in addition to the utility model:

As shown in Figure 1, speed of a motor vehicle indication section 1 is divided into three vehicle speed ranges with the speed of a motor vehicle, is set at low-speed range 0～80Km/h by single-chip microcomputer, moderate speed range 80～120Km/h, high-speed range 120～180Km/h; Speed of a motor vehicle pointer 2 indication speed of a motor vehicle scales, backlight region 3 presents different colors, then represents the scope of the speed of a motor vehicle, is low-speed range as green, and yellow is a moderate speed range, and redness is a high-speed range; Mileage shows that 4 stored count total kilometrages show; The speed of a motor vehicle shows that 5 directly show the speed of a motor vehicle with numeral; Clock shows 6.

As shown in Figure 2,1. power circuit makes power supply usefulness behind filter rectification, pulsing circuit 2. with the vehicle speed pulse signal through single-chip microcomputer input port 6 3. be input to single-chip microcomputer 3. in, through single-chip microcomputer 3. after the calculation process, be transported to display circuit 5. by delivery outlet 7,8,9, and shown.In the speedometer, three pairs of light emitting diodes are installed, a pair of is DF1, DF2 green light; Another is to being DF3, DF4 jaundice light; The 3rd pair glows for DF5, DF6.3. single-chip microcomputer sets vehicle speed range, low-speed range 0～80Km/h, moderate speed range 80～120Km/h, high-speed range 120～180Km/h.When running car during in low-speed range, 3. single-chip microcomputer sends a command signal and delivers to the base stage of triode Q2 through pin 11, makes green light light emitting diode DF1, DF2 conducting, sends green glow, and this moment, backlight region 3 presented green, was background large tracts of land green; When running car during in moderate speed range, 3. single-chip microcomputer sends a command signal and delivers to the base stage of triode Q3 through pin 12, and makes jaundice light-emitting diode DF3, DF4 conducting, sends gold-tinted, and this moment, backlight region 3 presented yellow, was background large tracts of land yellow; When running car during in high-speed range, 3. single-chip microcomputer sends a command signal, delivers to the base stage of triode Q4 through pin 13, makes the light emitting diode DF5 that glows, DF6 conducting, sends ruddiness, and this moment, backlight region 3 presented redness, was background large tracts of land redness.The driver is by the change color of table screen, and is very eye-catching, knows the velocity range of running car very easily, and main energy is placed in the driving, and traffic safety is made very advantageously, and speedometer presents various color, and luxurious, daring seems.

Claims

1, a kind of automobile odometer, comprise that the pointer indication speed of a motor vehicle, numeral show that the speed of a motor vehicle constitutes, it is characterized in that: the pulse signal of vehicle speed pulse circuit (2) is input to single-chip microcomputer (3) PIC16C676 input port (6), single-chip microcomputer (3) output pin (11) connects the base stage of triode Q2, diode DF1, the DF2 of conducting green light; Single-chip microcomputer (3) output pin (12) connects the base stage of triode Q3, diode DF3, the DF4 of conducting jaundice light; Single-chip microcomputer (3) output pin (13) connects the base stage of triode Q4, diode DF5, DF6 that conducting glows.