CN87101055A

CN87101055A - Telemetric early-warning instrument for car collision avoidance

Info

Publication number: CN87101055A
Application number: CN 87101055
Authority: CN
Inventors: 俄家齐
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-30
Filing date: 1987-05-30
Publication date: 1988-12-14

Abstract

The present invention has announced a kind of remote measurement early warning instrument that can point out chaufeur to make rationally to operate crash-avoidance when two automobile phase approachings.Electromagnetic intensity and character that this instrument is launched according to the other side's vehicle are judged the degree of two car phase approachings, with having coloured light to show and suitable sound equipment is pointed out chaufeur.

Description

The present invention has announced a kind of telemetric early-warning instrument for car collision avoidance, and it can point out chaufeur to make reasonably operation crash-avoidance when two car phase approachings.The principle method that this instrument uses can not only adapt to automobile, also is applicable to other power actuated vehicle or the boats and ships that can launch similar or modulated electromagnetic pulse.

Along with development and national economy, traffic is busy day by day, and vehicle collision and so on calamity also increases thereupon, and this not only causes traffic tie-up, and causes car crash, and loss is serious.For fear of collision, people are with radar that can transmitted beams and ultrasonic sonar miniaturization and try out in automobile.But the precaution device of this radar and sonar formula has its congenital shortcoming that can't overcome: the first is because the rectilinearity of wave beam, and this precaution device can't be found to be stopped and vehicle on unsighted hill path or the bend by mountain and building; Its two, if beam power is low, find that vehicle is too near and meaningless, power one is big, the trees building in roadside, road all can cause the error false-alarm, causes unnecessary terrified of chaufeur; Its three, this class device not only complex structure costliness, power consumption is big, and easily damages inefficacy because of the vibration of running car, so do not apply.Until today, the whole world overwhelming majority's automobile does not all have precaution device.

The telemetric early-warning instrument for car collision avoidance that the present invention announces first, then can finish the purpose of remote measurement early warning, no matter on the highway in Plain or mountain area, can allow chaufeur know clearly on the distance certain around own whether have other vehicle, thus can the reasonable operation crash-avoidance.This telemetric early-warning instrument for car collision avoidance, resemble and only do the radio intercept to receive passively, the electromagnetic pulse of being launched when it receives the other side's automotive operation by antenna, according to this wave intensity and character, carrying out cut-off frequency amplifies and demodulation, thereby judge the degree of two car phase approachings, and can point out chaufeur with red yellowish green trichromatism demonstration and suitable sound equipment.

This telemetric early-warning instrument for car collision avoidance is made of transmit pick-up, six part institutes such as magnetic is wireless, receptor, discriminator, demonstration squealer and power supply of automobile.

Below in conjunction with accompanying drawing detailed explanation is done in the concrete enforcement of the instrument of the present invention's announcement:

Figure one, complete machine schematic diagram.

The figure that connects of figure two, the pickup circuit that transmits and automobile circuit.

The schematic diagram of figure three, receptor.

The physical circuit of figure four, a kind of discriminator telltale.

The pick-up that transmits of this automobile is seen figure two.A is the connection of a kind of standard machinery current distributor control Coil; B is the connection of a kind of electronic circuit (comprising microprocessor) control Coil, and two kinds of connection latter are for well.Both all have a common feature is that a photoelectrical coupler that plays buffer action is arranged, the signal of being come by its coupling forms electronic on-off-type pulse output after shaping, also can with other isolating coupler, but with the photoelectricity class is good, it is cut apart the cost car with series between the time and launches, with this car in two parts of emission.

Magnetic antenna (but adjunction vehicle body outer draw antenna) receives the electromagnetic pulse signal that the other side sends, and sends into receptor (figure three).The electronic switch signal that this receptor is sent here by the pick-up that transmits is controlled.When this car was just launched, receptor quit work, and when itself not launching, handled the signal that antenna is sent here.Because vehicle, scanning frequency, road difference, the impossible constant speed of two cars is synchronized transmissions simultaneously, thereby receptor can be handled the electromagnetic pulse signal that the other side's car is sent.Receptor is put before dividing, and the amplification of first cut-off frequency is separated mediation second cut-off frequency and amplified demodulation three parts.Though have cut-off frequency amplify that demodulation just can be worked two for good because the class signal that automobile sent double modulation pulse train seemingly, processing will improve signal to noise ratio like this.

Discriminator is the level signal separation circuit of a dual gate valve.It is combined by the dual comparator AND gate, also can be made of the transistor array, but the former is good.Isolated three signals of institute show and sound equipment by amplifying to drive respectively.Figure four has listed a feasible physical circuit.These three signals are respectively high-strength electromagnetic pulse signal, msp signal and relative small-signal, and corresponding separately red yellowish green trichromatism shows.As everyone knows, received signal is strong and weak relevant with the distance in range signal source, so be that automobile is closely arranged accordingly with high-strength signal, red display is shinny; Have msp signal that car is then arranged slightly at a distance, yellow is bright; Small-signal then is the safe driving signal relatively.Regulate the family of power and influence, or regulate in the receptor and amplify or attenuation multiple, red display is shinny 100 meters to 30 meters the time is advisable apart from me to make automobile.Shinnyly change over to redly when bright when yellow shows, the expression automobile can be driven suitable sound equipment prompting chaufeur and be noted by slightly far approaching to me.Discriminator also can use the simple gate valve only to distinguish two kinds of signals, show two kinds of automobiles that distance is last of early warning and safety with red green two looks, but the discriminator of dual gate valve formula is good.

Power supply is advisable with independent current source to the each several part power supply of this instrument, if use automobile storage battery, must isolate by strict disturbance rejection.

As from the foregoing, this telemetric early-warning instrument for car collision avoidance that the present invention announces, not only operation principle is reasonable, and simple in structure, dependable performance. It can judge other automobile and oneself distance in all directions, and this remote measurement early warning is for highway, hill path bend, the heavy rain of low visibility and dense fog sky, and it is important especially to seem.

Claims

1, this telemetric early-warning instrument for car collision avoidance is made up of the pick-up that transmits, magnetic antenna, receptor, discriminator, demonstration Chinese percussion instrument and power supply.

2, according to right 1, the pick-up that transmits must contain photoelectrical coupler, or other isolating coupler.

3, according to right 1, receptor must contain cut-off frequency and amplify and demodulator circuit, and ON-OFF control circuit.

4, according to economic rights 1, discriminator must be the level disconnector that contains the level family of power and influence.

5, according to right 1, the displaying sound device contains coloured optical display unit and and the corresponding PA-system of red display device that comprises red green two color.