CN2301358Y - High-level braking speed indicating instrument - Google Patents
High-level braking speed indicating instrument Download PDFInfo
- Publication number
- CN2301358Y CN2301358Y CN 97233067 CN97233067U CN2301358Y CN 2301358 Y CN2301358 Y CN 2301358Y CN 97233067 CN97233067 CN 97233067 CN 97233067 U CN97233067 U CN 97233067U CN 2301358 Y CN2301358 Y CN 2301358Y
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- CN
- China
- Prior art keywords
- speed
- signal
- speed indicator
- circuit controller
- indicating instrument
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a high-level braking speed indicating instrument, which belongs to the field of instruments and meters. The utility model comprises braking lamps and a display, wherein, the display comprises a signal collector, a circuit controller and a speed indicator. The signals taken out by a sensor are processed by the signal collector, and are output to the circuit controller; the circuit controller which controls the speed indicator is connected with the speed indicator; the speed indicator is installed parallel to the braking lamps on both sides. The speed indicator can adopt a digital tube or a diode set to display; the circuit controller is composed of a double-integral type A/D converter and a light-emitting diode driving circuit. The utility model has the advantage of eye-catching, accurate and timely speed and speed change display, and the utility model can effectively avoid the occurrence of the collision accidents.
Description
The utility model relates to a kind of brake speed indicating instruments, belongs to instrument field.
At present, in running car, chaufeur oneself can be seen Vehicle Speed and the velocity variations because of braking, raising speed and bring on the average speed indicator of operator's compartment dial plate, but succeeding vehicle can't be grasped moving velocity, brake, the speed-raising degree of front truck; Be equipped with high-mount stop lamp on now existing part automobile and the window, lamp is bright during brake, act on equally with former stoplight stop lamp, and just the light present position is more eye-catching, but the urgency that can't demonstrate brake is delayed degree, still can't avoid the generation of rear-end collision accident thus.
The purpose of this utility model is to provide an a kind of high position to show moving velocity, brake speed-raising intensity of variation, the high-order brake speed indicating instrument that makes front vehicle can predict in advance, in time handle, effectively avoid accident to take place at any time.
The purpose of this utility model is achieved through the following technical solutions: a kind of high-order brake speed indicating instrument, include stoplight stop lamp, telltale, its special character is that described telltale includes signal picker, circuit controller and speed indicator, the signal that is taken out by sensor outputs signal to the circuit controller signal input part after signal picker is handled, circuit controller mouth control linkage speed indicator, speed indicator is installed in parallel in the stoplight stop lamp of both sides, and speed indicator demonstrates the speed and the rapid change situation of car speed.
For the automobile that has the mechanical transmission-type average speed indicator, signal picker is for increasing sensor on flexible axle, during running car, driving magnet steel by the change speed gear box transmission gear through flexible axle rotates, the magnetic force line cutting cell winding that magnet steel changes, generation is accelerated voltage with the speed of a motor vehicle and is raise, the slow down variation alternating current of voltage decreases of the speed of a motor vehicle, this alternating current again through rectifier rectification output change with the speed of a motor vehicle and with the speed of a motor vehicle be the direct current (DC) of linear relationship.For the automobile that has fax dynamic formula average speed indicator, signal picker ties up to the unsteady flow electricity that line intercepting in parallel changes with the speed of a motor vehicle on the sensor binding post that is positioned on the automobile gearbox, through the direct current (DC) of rectifier rectification output variation.
Circuit controller can adopt two kinds of modes to constitute: when speed indicator is the charactron demonstration, circuit controller is made of the double integral A/D converter and the peripheral cell that are exclusively used in driving LED numeric display element, the signal input part of conv links to each other with the signal picker mouth, and the signal output part of conv connects the controlling and driving speed indicator.
When speed indicator was the light-emitting diode group demonstration, circuit controller was made of LED driving circuit and peripheral cell.LED driving circuit adopts the integrated diode driving circuit, and this driving circuit signal input part links to each other with the signal picker mouth, and the driving circuit signal output part connects the controlling and driving speed indicator.
The double integral A/D converter of circuit controller can adopt ICL7107 (or ICL7137, NJU9202B, NJU9204M); The integrated diode driving circuit of circuit controller can adopt BA689.
The high-order brake speed indicating instrument of the utility model design-calculated can be eye-catching in an automobile high position, speed of a motor vehicle situation of change such as display automobile running velocity, speed-raising brake accurately and timely, make the back driving vehicle can shift to an earlier date accurate understanding, in time handle, thereby can avoid the generation of vehicle collision accident to greatest extent.
Description of drawings:
The installation displayed map of Fig. 1-embodiment 1;
The installation displayed map of Fig. 2-embodiment 2;
The signal picker erection plan of Fig. 3-embodiment 1;
The signal picker erection plan of Fig. 4-embodiment 2;
The circuit controller of Fig. 5-embodiment 1 and speed indicator circuit diagram;
The frame principle figure of Fig. 6-Fig. 5;
The power circuit diagram of Fig. 7-Fig. 5;
The circuit controller of Fig. 8-embodiment 2 and speed indicator circuit diagram;
The inner schematic diagram of circuit controller among Fig. 9-Fig. 8.
Provide specific embodiment of the utility model below in conjunction with accompanying drawing, be used for further specifying the utility model.
Stoplight stop lamp is made up of brake light bulb, shell lampshade, connection lead etc., and in parallel with former car brake circuit, this lamp is bright during brake, and effect is the same with the effect of former car brake light fixture.
To the mechanical transmission-type average speed indicator, signal picker adopts increases sensor on flexible axle, during running car, driving magnet steel by the change speed gear box transmission gear through flexible axle rotates, magnet steel magnetic force line cutting coil, generation is accelerated the variation alternating current that voltage raises, the speed of a motor vehicle slows down voltage decreases with the speed of a motor vehicle, by binding post output, enters the direct current (DC) that diode bridge rectifier rectification output changes with the speed of a motor vehicle by line.
Above-mentioned direct current (DC) connection is delivered to the circuit controller input end, circuit controller adopts double integral A/D converter ICL7107 (or the ICL7137 of driving LED numeric display element, NJU9202B, NJU9204M etc.), ICL7107 inside is made up of analogous circuit and digital circuit two large divisions, the its internal circuit block scheme is seen Fig. 6, the ICL7107 periphery is connected to the RC pierce circuit, incoming signal RC filter circuit, the ICL7107 mouth is connected to the speed indicator that light-emitting diode display constitutes, light-emitting diode display adopts three charactrons to form, ICL7107 inside produces control signal by the control logic unit, order opens or closes and respectively organizes analog switch in required time, guarantee normally carrying out of A/D conversion, by comparator output signal control figure circuit in the analogous circuit through counting machine (decimal digit is converted into binary-coded decimal), latch (avoiding the continuous jumping figure of telltale in the counting process), decoder (BCD is translated into 7 segment encodes), led driver, the light-emitting diode display of drive output demonstrates velocity amplitude.
Each element of its peripheral circuit act as; R1, C1 are internal clock outer meeting resistance electric capacity, form clock oscillator, and R2, RP form the bleeder circuit of reference voltage, C2 is a reference capacitance, R3, C3 form the high frequency resistance-capacitance type filter of signal input part, and C4 is an automatic zero set electric capacity, and R4, C5 are respectively external integration type resistance, electric capacity.Employing ± 5V dual power supply, power circuit constitutes with three end securing integrated circuits 7805,7905, the 12V power supply of power circuit input termination spontaneous ignition switch.
The speed indicator that this charactron constitutes can accurately and timely demonstrate vehicle each moving velocity value and velocity variations moment.
Alternating current input circuit controller with above-mentioned signal picker output, circuit controller is made of light-emitting diode integrated drive electronics BA689, see Fig. 8, its internal circuit and pin function are referring to Fig. 9, and the BA689 mouth connects the speed indicator that is made of light-emitting diode group.BA689 includes the rectification amplifying circuit, through comparator output driving current successively, outgoing current is constant current, change its constant current value by the variation that changes outer meeting resistance, make every group of demonstration reach certain brightness, 12 output pins can drive 12 groups of light-emitting diodes, 8 light-emitting diodes (D * 1-D * 8) are composed in parallel one group of display part, each output pin drives (totally 12 groups of one group of luminous demonstrations of LED, D1 *-D12 *), with the group number of lighting varying number group LED what, the height of representing the input AC electricity changes, and its display mode is the line style formula, and the linear relationship between the speed of a motor vehicle and the variable alternating current matches, this circuit voltage is 10-14V, can directly utilize automobile power source (12V) power supply.
Claims (5)
1, high-order brake speed indicating instrument, include stoplight stop lamp, telltale, it is characterized in that described telltale includes collector, circuit controller and speed indicator, the signal picker that links to each other with sensor outputs signal to the circuit controller signal input part, circuit controller device mouth control linkage speed indicator, speed indicator is installed in parallel in the both sides stoplight stop lamp.
2, according to the described high-order brake speed indicating instrument of claim 1, it is characterized in that described signal picker is for setting up sensor on the flexible axle that has mechanical transmission-type average speed indicator automobile, the automobile gearbox transmission gear drives magnet steel through flexible axle and rotates, the ac signal of the cell winding output of magnet steel variable magnetic force line cutting connects rectifier, rectifier output DC signal.
3, according to the described high-order brake speed indicating instrument of claim 1, it is characterized in that the alternating current that described signal picker changes with the speed of a motor vehicle for line intercepting in parallel on the sensor binding post that is positioned on the automobile gearbox, through the dc signal of rectifier rectification output variation.
4, according to the described high-order brake speed indicating instrument of claim 1, it is characterized in that described circuit controller is made of the double integral A/D converter and the peripheral cell of driving LED numeric display element, the signal input part of conv links to each other with the signal picker mouth, the signal output part of conv connects the controlling and driving speed indicator, and described speed indicator is made of charactron.
5, according to the described high-order brake speed indicating instrument of claim 1, it is characterized in that described circuit controller is made of light-emitting diode integrated drive electronics and peripheral cell, this driving circuit input end links to each other with the signal picker mouth, the driving circuit signal output part connects the controlling and driving speed indicator, and described speed indicator is made of light-emitting diode group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97233067 CN2301358Y (en) | 1997-05-07 | 1997-05-07 | High-level braking speed indicating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97233067 CN2301358Y (en) | 1997-05-07 | 1997-05-07 | High-level braking speed indicating instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2301358Y true CN2301358Y (en) | 1998-12-23 |
Family
ID=33944729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97233067 Expired - Fee Related CN2301358Y (en) | 1997-05-07 | 1997-05-07 | High-level braking speed indicating instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2301358Y (en) |
-
1997
- 1997-05-07 CN CN 97233067 patent/CN2301358Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |