CN2147150Y

CN2147150Y - Motive vehicle collision-proof alarm controller

Info

Publication number: CN2147150Y
Application number: CN 92244132
Authority: CN
Inventors: 冯里芳
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-08
Filing date: 1992-12-08
Publication date: 1993-11-24
Anticipated expiration: 2002-12-08

Abstract

The utility model provides a motive vehicle collision-proof alarm controller, comprising a sensor, a transforming reshaper and a distance discriminating circuit. The pulse signal of running speed for a motor vehicle is reflected by the output energy of the sensor; an infrared pulse detection signal is sent out in the running right ahead direction of the motor vehicle by transformation of signal; an optical signal which is reflected by an obstacle is transformed into an electrical signal by a photosensitive device which is arranged on the motor vehicle; after the process of signal amplification, audible and visual alarm in long distance and automatic emergency braking at close range can be realized. The utility model has the advantages of simply controller circuit, high detection sensitivity, strong anti-interference ability, high reliability, low cost, small size and wide range of operating temperature.

Description

Motive vehicle collision-proof alarm controller

The utility model belongs to a kind of collision-proof alarm controller that self-propelled vehicle is used in the process of moving.

Anticollision of motor vehicles annunciator and the crashproof controller recognized at present, employing be laser technology and computer technology, its complex structure, cost height, and be unsuitable under the environment of high temperature or low temperature, working.

The purpose of this utility model is to use the universal electric technology, when making self-propelled vehicle run into obstacle in the dead ahead of travelling, by light-to-current inversion and signal conditioning, realizes far distance automatic sound and light alarm, automatic emergency brake closely, and it is simple in structure, cost is low.

The purpose of this utility model is to realize like this, be installed in the sensor on the corresponding fixed position of motor vehicle gearbox output shaft, output can reflect the impulse singla of vehicle running speed, through the signal transformation shaping, form detectable signal, through power gain, drive the infrared light emission device and send the infrared pulse signal, when this signal runs into obstacle, reflecting back on the photosensor of self-propelled vehicle installation, is electric signal with converting optical signals, through processing and amplifying, the control annunciator makes it to send the sound and light alarm signal, and drives the stoplight stop lamp flash of light.When the self-propelled vehicle continuation reaches the stopping distance of setting near obstacle, distance discrimination circuit output judgment signal, carrying out speed by the speed judging circuit according to the speed of self-propelled vehicle again differentiates, when speed during greater than a certain setting value, the judgment signal of speed judging circuit output, trigger brake signal generator, through power gain CD-ROM drive motor control braking mechanism.

The utility model compared with prior art has the following advantages: circuit is simple, the detectivity height, and strong anti-interference performance, cost is low, volume is little, and working temperature range is wide, and is easy to utilize.

The utility model will be described further in conjunction with the accompanying drawings.

Fig. 1 is a functional-block diagram of the present utility model.

Fig. 2 is an electrical schematic diagram of the present utility model.

Be contained in the sensor HST on the corresponding fixed position of motor vehicle gearbox output shaft, when motor-driven vehicle going, sensor HST exports a series of impulse singlas relevant with running velocity, aerotron 1T1 in the signal transformation dresser is anti-phase, 1C2, the 1R4 differential, be defeated by 1IC2 in the detection signal generator through isolation diode 1D2 again, the univibrator that 1IC3 constitutes carries out waveform transformation, form the pulse detection signal of fixed width, by the aerotron 1T2 in the power amplifier, 1T3 carries out power gain, the infrared light-emitting device 1D8 of drive installation on self-propelled vehicle sends the infra-red detection signal of impulse form to the motor-driven vehicle going dead ahead.When obstacle appears in the place ahead of motor-driven vehicle going, be installed in the infrared light sensing device 2T3 on the self-propelled vehicle, with the converting optical signals of obstacle reflected back is electric signal, after amplifier 2IC1,3IC1 two-stage are amplified, by alarm controller 3IC2 guide sound light crossing-signal, the HF oscillation that the low-frequency oscillation modulation 3IC4 that 3IC3 in the annunciator produces produces, after aerotron 3T1 amplifies, promote loud speaker YS send " too " sound, the low-frequency oscillation that produces by 3IC3 simultaneously, through aerotron 3T2,3T3 power gain, drive tail stoplight stop lamp ZD flash of light.Be installed in the luminotron 1LED of operator's compartment, also send the ruddiness that sparkles simultaneously and form sound and light alarm.

Behind the sound and light alarm, if not doing corresponding the deceleration handles, the electric signal of photosensor output dwindles gradually along with the distance between self-propelled vehicle and the obstacle and increases gradually, the electric signal of amplifier 2TC1 output also increases gradually, when reaching the crashproof stopping distance of setting, range signal judging circuit 2IC2 output and direct impulse are with wide pulse voltage, be defeated by speed judging circuit 2IC3 and carry out the speed differentiation, when if the self-propelled vehicle running velocity is lower than the speed (as 25～30 kilometers/hour) of a certain setting, speed judging circuit 2IC3 does not send brake signal, thereby avoids invalid brake.If self-propelled vehicle is still when driving towards obstacle greater than the speed of setting, the dutycycle of the 2IC2 voltage pulse output in the distance discrimination circuit increases, integrator 2R8,2D8 in the speed judging circuit, the integral voltage of 2C5 are raise, speed judging circuit 2IC3 upset triggers brake signal producer 2IC4 rapidly for high level, and the brake signal that makes its output is behind aerotron 2T1,2T2 power gain, drive brake motor M running, the brake activation valve action realizes emergency brake, avoids bumping against with obstacle.

The self-propelled vehicle of information recorder is being housed, can carrying out record by the speed signal when information recorder provides self-propelled vehicle near obstacle.Being equipped with on the self-propelled vehicle of treater, also can provide speed signal to treater, send the brake instruction by treater and carry out emergency braking, this treater is controlled by K2.

For the self-propelled vehicle of inconvenient sensor installation HST, native system is provided with direct impulse producer 1IC1, and by K1 control, when K1 disconnected, the Schmidt's multi-vibrator that is made of 1IC1 produced impulse singla, to replace sensor.Do not produce the brake signal except that the brake judging circuit is closed, can play the sound and light alarm effect equally.

This controller also is provided with the control system of drivining a car under the influence of alcohol, when alcohol particle concentration in the operator's compartment reaches setting concentration, alcohol end instr QM exports high level, through 1IC4 relatively after output control voltage, after aerotron 1T4 amplifies, ignition lock is cut off in the action of driving relay J, and self-propelled vehicle can not be started.

Claims

1, a kind of anticollision of motor vehicles alarm controller, it comprises sensor, signal transformation dresser, detection signal generator, infrared emittance, photosignal changer, annunciator, distance discrimination circuit, speed judging circuit, brake signal generator; Of the present utility model being characterised in that, be installed in the sensor on the corresponding fixed position of motor vehicle gearbox output shaft, output can reflect the impulse singla of vehicle running speed, form detectable signal through the signal transformation shaping, through power gain, drive infrared generator and send the infra-red detection impulse singla, when this signal runs into obstacle, reflect back on the photosensor of self-propelled vehicle installation, with converting optical signals is electric signal, through processing and amplifying, and the control annunciator, make it to send the sound and light alarm signal, and drive the stoplight stop lamp flash of light; When self-propelled vehicle continues near obstacle, when reaching the stopping distance of setting, distance discrimination circuit output judgment signal, differentiate according to the speed of self-propelled vehicle by the speed judging circuit again, when speed during greater than a certain setting value, the judgment signal of speed judging circuit output triggers brake signal generator, through power gain CD-ROM drive motor running control braking mechanism.