CN2483261Y

CN2483261Y - Scanning and forming image device to protect automobile from being collision

Info

Publication number: CN2483261Y
Application number: CN 00267068
Authority: CN
Inventors: 姚大志
Original assignee: Purple Mountain Observatory of CAS
Current assignee: Purple Mountain Observatory of CAS
Priority date: 2000-12-25
Filing date: 2000-12-25
Publication date: 2002-03-27
Anticipated expiration: 2010-12-25

Abstract

The utility model discloses a scanning imagery collision-proof device for automobiles, which is provided with a microwave probe and is characterized in that the microwave probe adopts the dual-purpose probe of emanation and receiving. The utility model is also provided with a mechanical scanning device which drives the probe, echo signals received by the probe are input into the SCM through the signal pickup assembly, so the SCM accesses the alarm. The utility model is a collision-proof device for automobiles with simple structure and low cost, the probe can bear being covered by mud and water and can proceed the three-dimensional signal identification, can recognize the verily object forward at any time and calculate the distance. The probe will alarm when the distance is too near. The device can help drivers in fog day or on highway and avoid the collision and tail collided accidents of automobiles.

Description

The scanned imagery device of automobile collision preventing protection

The utility model relates to a kind of scanned imagery device of automobile collision preventing protection.

Automobile travelled in the greasy weather, very easily bumped, and produced rear-end collision, and especially on express highway, the loss of accident is very big.The key that prevents this accident is: when with the hypotelorism of preceding vehicle, can in time remind the automobilist to take urgent measure.And develop this proximity-warning device with prompting function, become an important topic in the vehicle safety travel.The key that addresses this problem is how to discern real echo signal effectively and measure its distance, judges.In the prior art, mainly adopt the reflected signal of super sonic, infrared ray or microwave etc.But conventional art all is to adopt the some recognition technology, and some recognition technology itself has some weakness, its limitation is also arranged: because in vehicle traveling process on using, the situation in the place ahead is ever-changing, in for example upper and lower when slope, emitting head might be towards sky, or receives the ground-surface echoed signal; May receive the roadside during turning and protect and block or the echoed signal of building, only depend on a recognition technology, be difficult to determine real echo signal; Simultaneously, often be coated with in the running car and spatter muddy water, super sonic and infrared probe are easy to be covered and cisco unity malfunction by muddy water.Microwave probe is not afraid of muddy water, but it can not carry out an identification, imaging device must be set, for example radar.Traditional microwave imaging equipment is very expensive, still can't be used for civil areas such as automobile.

Task of the present utility model provides the scanned imagery device of automobile collision preventing a kind of simple in structure, cheap protection, and its probe is not afraid of by muddy water and is covered, and can keep normal operation at any time.This device can carry out two dimension or three-dimensional signal identification, can tell the real target in the place ahead at any time, and calculate its distance.When with the hypotelorism of preceding vehicle, in time report to the police, can remind the automobilist to take urgent measure.When automobile travelled or during at running on expressway in the greasy weather, this device provides the guarantee of a kind of facility aspect for accident such as prevent collision, knock into the back.Its price can adapt to the requirement of civilian product, in order to popularization.

The technical scheme of finishing above-mentioned task is: the scanned imagery device of automobile collision preventing protection; be provided with microwave probe; it is characterized in that: microwave probe adopts emission, receives the dual-purpose probe; be provided with the mechanical scanner that drives this probe swing simultaneously; the echoed signal that probe receives inserts micro controller system through harvester, micro controller system device taking alarm.Here said microwave probe is designed to small-sized probe, and drives its continuous scanning by mechanical scanner.Said mechanical scanner can adopt common mechanical pendulous device of the prior art; Also can adopt the scheme in the embodiment of the present application.Signal pickup assembly also can adopt prior art.Said annunciator can comprise reports to the police and demonstration.In micro controller system, be provided with simulation model of cognition software and distance calculation software.Microwave probe sends the micro wave band signal that rain, snow and mist is had penetrating capacity, runs into the place ahead obstacle and promptly reflects.After probe one emission, promptly then be in receiving condition, wait for first echo after, signal amplified delivers to high-speed microprocessor sampling storage.Scanner unit is scanning fast on one side, first echo of a plurality of angles promptly is stored in the micro controller system, constitute 3-D graphic, micro controller system has also been write down the time that a plurality of angles are sent ripple and received echo, method with simulation identification can be found out real target, and calculate distance between real target and this car, too near the time then send alerting signal.

The scanned imagery device of the automobile collision preventing protection that the utility model provides can be differentiated the place ahead target at any time, identifies the signal that should be noted that; and measure its distance; when with the hypotelorism of preceding vehicle, in time report to the police, can remind the automobilist to take urgent measure.Compare with prior art such as radar simultaneously, it is much simple in structure, and price is also very cheap, adapts to the various requirement of civilian product, and its probe is not afraid of by muddy water and is covered, and can keep normal operation at any time.Accident provides a kind of support equipment in order to prevent collision, knock into the back etc. to use it for automobile collision preventing protection.

Now be described further with embodiment in conjunction with the accompanying drawings.

Fig. 1 is the application's principle of work scheme drawing;

Fig. 2 is the scheme drawing of the further refinement of Fig. 1;

Fig. 3 is the circuit diagram of embodiment 1.

Embodiment 1; with reference to Fig. 1, Fig. 2, Fig. 3: the scanned imagery device of automobile collision preventing protection; be provided with the microwave probe 1 of an emission, reception dual-purpose; and be provided with emission, the reception change over controller of forming by micro controller system 3, counting machine 6,500M crystal oscillator 7 and switch circuit 8, change in emission and between receiving with the control microwave probe.Simultaneously, mechanical scanner 4 is made up of stepping motor 9 and stepper motor driver 10, and is connected with micro controller system.Micro controller system here and counting machine adopt high-speed microprocessor and high-speed counter.Mechanical scanner can drive microwave probe and constantly scan.During work, micro controller system sends instruction rotates motor, the moving angle of probe revolution, and micro controller system sends the microwave launch intruction, opens high-speed counter simultaneously, and at this moment, the value representation of counting machine is 2 times of target ranges.The size of target echo signal is delivered to high-speed microprocessor collection storage.Behind 2 ° of scanning directions, scanning round about again.Maximum scan speed is per second 10 times.Scanning collection to signal two parts are arranged, a part is an echo intensity; Another part is a target range.With the scanning angle is variable, just can obtain the image of a three-dimensional: angle is X, and distance is Y, and intensity is Z, this three-dimensional image is differentiated with the software simulation model of cognition again, just can find out real echo signal, the continuous display-object distance of micro controller system is near excessively as target simultaneously, cause audible ringing signal, distance is near more, and the alarm sound frequency is high more, and sound is rapid more.Stepping motor, motor-driven source, 500M crystal oscillator, high-speed counter etc. all have commodity selling in the present embodiment.

Claims

1, a kind of scanned imagery device of automobile collision preventing protection; be provided with microwave probe; the echoed signal that probe receives inserts micro controller system through signal pickup assembly; micro controller system device taking alarm; it is characterized in that: microwave probe adopts emission, receives the dual-purpose probe, is provided with the mechanical scanner that drives this probe swing simultaneously.

2, according to the scanned imagery device of the described automobile collision preventing protection of claim 1, it is characterized in that: said mechanical scanner is made up of stepping motor and stepper motor driver, and is connected with micro controller system.

3, according to the scanned imagery device of claim 1 or 2 described automobile collision preventing protections, it is characterized in that: microwave probe is provided with emission, the reception change over controller of being made up of micro controller system, counting machine and switch circuit.

4, according to the scanned imagery device of the described automobile collision preventing protection of claim 3, it is characterized in that: said micro controller system and counting machine adopt high-speed microprocessor and high-speed counter.