CN2317127Y - Rear-view range finding alarm device for car - Google Patents

Abstract

The utility model discloses a multifunctional alarm device for the rear-view distance measuring of a car, which is formed by connecting a camera, a minitelevision, an ultrasonic emission probe, an ultrasonic receiving probe, an ultrasonic emission and a receiving process circuits and the control circuit of a single chip computer. The utility model also comprises an automatic and a manual diverting switches to make the multifunctional alarm device for the rear-view distance measuring of the car work in different states. The utility model has the advantages that multiple functions are arranged, not only scenery behind the car can be observed from a screen by the camera and can not be restricted by the shielding of a car body, but also ultrasonic can be used for measuring distance and the distance data of an object behind the car is displayed. Alarm is done when the distance data is smaller than critical distance to guarantee driving safety, and the critical distance can be adjusted and set following different car speed. Meanwhile, when the alarm for rear view distance measuring is not needed, a person can watch TV by using an over-car antenna and a video disc player, amuse, rest and acquire information.

Description

Automobile is with multi-functional backsight range finding warning device

The utility model relates to a kind of automobile backsight device, particularly automobile with multi-functional backsight range finding warning device.

The rear-view mirror device of existing automobile mostly just is the preposition outside window back mirror of automobile cab, it does not only have the mono-back vision function, and its back vision function is restricted, both not had clear and definite range data for the backsight thing shows, especially for the nearly car situation in tailstock dead aft, because blocking by vehicle body, at all can't backsight with back mirror, because back vision function is restricted, work as reversing automobile, overtake other vehicles, turn to, braking, sail, stop etc. under the various complicated running statees, and car knocks into the back in emergency circumstances after taking place, the driver is because in confused situation to automotive rear-view, can't initiatively take countrmeasure, cause the driver often to be among the potential danger, thereby the probability that accident takes place is increased greatly.

It is a kind of rear-view mirror device of automobile design that the purpose of this utility model is to adopt TV tech and ultrasonic measuring distance technology, not only can in car, observe the car back spectacle from the monitor tv screen, and can be with ultrasonic fault detection and the range data of object after demonstrating car, simultaneously when not needing backsight, can utilize same vision receiver to watch, listen to telecast or VCD dish again, for in-car entertainment, have a rest and information is provided.

Technical solution of the present utility model is a kind of automobile with multi-functional backsight range finding warning device, it is attached to minitelevision by camera, be attached to ultrasonic emitting and received signal treatment circuit by the ultrasonic emitting probe respectively with the super sonic receiving transducer in addition, be connected to single chip machine controlling circuit again, be attached to vision receiver then and form, vision receiver also can connect with antenna and VCD video compact disk player; By singlechip chip IC ₁, integrated circuit die I C ₂, diode D, aerotron N ₁～N ₅, capacitor C ₄～C ₁₀, resistance R ₇～R ₁₅, switch S ₁～S ₃Be connected to single chip machine controlling circuit, IC ₁37,36 pin and 39,38 pin connect with 2 pairs of mouths of received signal treatment circuit with 2 identical ultrasonic emitting respectively, 32,33,34 pin are connected to the vertical deflection circuit of TV, line-scan circuit and voice frequency circuit, R respectively ₁₁With N ₃Pipe collector is contact output ultrasonic wave ranging data signal altogether, is connected to the vision receiver video amplifier circuit, N ₄Pipe collector output camera operating voltage is connected to camera, N ₅Pipe collector is exported tuner intermediate level circuit operating voltage, is connected to the tuner intermediate level circuit of vision receiver.

Description of drawings is as follows:

Accompanying drawing 1 is an automobile with multi-functional backsight range finding warning device functional block diagram

Accompanying drawing 2 is automobiles with multi-functional backsight range finding warning device circuit connecting figure

The utility model further specifies as follows referring to accompanying drawing 1,2 in conjunction with specific embodiments.A kind of automobile is with multi-functional backsight range finding warning device, it is attached to minitelevision 2 by camera 1, be attached to 2 identical ultrasonic emitting and received signal treatment circuit 5 by two pairs of ultrasonic emitting probes 3 respectively with super sonic receiving transducer 4 in addition, two ultrasonic emitting and acceptor circuit 5 are connected to single chip machine controlling circuit 6 respectively, single chip machine controlling circuit 6 is connected to vision receiver 2, formed automobile is with multi-functional backsight range finding warning device, and vision receiver 2 also can connect with antenna 7 and VCD video compact disk player 8.

Camera 1, minitelevision 2, ultrasonic emitting probe 3, super sonic receiving transducer 4, antenna 7, VCD video compact disk player 8 are prior art.

Ultrasonic emitting and received signal treatment circuit 5 also are prior art, referring to accompanying drawing 2, by the transport and placing device chip IC ₃And aerotron N ₆And resistance R ₁～R ₆, capacitor C ₁Be connected into ultrasound emission and received signal treatment circuit 5, R ₆With R ₂Be total to contact and R ₄One end connects respectively+the 12V power supply, C ₁One is connected to ultrasound emission probe 3, and super sonic receiving transducer 4 is connected to R ₃Two ends, R ₁An end and IC ₃Mouth be respectively the pair of output of ultrasonic emitting and received signal treatment circuit.2 ultrasonic emitting and received signal treatment circuit 5 and the 2 pairs of ultrasonic emitting probes 3 and super sonic receiving transducer 4 are made one, place automobile tail.After camera 1 also places car.Ultrasonic emitting 3 models of popping one's head in are MA40A3S, and super sonic receiving transducer 4 models are MA40A3R, the transport and placing device chip IC ₃Model is LM393.

Single chip machine controlling circuit 6 is by singlechip chip IC ₁, integrated circuit die I C ₂, diode D, aerotron N ₁～N ₅, capacitor C ₄～C ₁₀, resistance R ₇～R ₁₅, switch S ₁～S ₃Be connected into single chip machine controlling circuit.IC ₁37,36 pin and 39,38 pin connect with two pairs of mouths of received signal treatment circuit 5 with 2 identical ultrasonic emitting respectively. 1C ₁32,33 pin be tapped into vertical deflection circuit, the line-scan circuit of vision receiver 2,34 pin output audio signals are connected to voice frequency circuit, R ₁₁With N ₃Pipe collector is contact output ultrasonic wave ranging data foundation altogether, is connected to the video amplifier circuit of vision receiver 2, N ₄Pipe collector output camera operating voltage is connected to camera 1, N ₅Pipe collector is exported tuner intermediate level circuit operating voltage, is connected to the tuner intermediate level circuit of vision receiver.Singlechip chip IC ₁Model is 89C5Z, integrated circuit die I C ₂Model is MC7805T.C ₄Be crystal-vibration-chip, model is 20M.Single chip machine controlling circuit 6 is made one with vision receiver 2, place the indoor operator platform of vehicle drive before.

S ₂Be the automatic transfer switch by the key operated control of automotive ignition, S ₃The serve as reasons Manual Transfer Switch of manual direct control, S ₁Manual reset switch for single chip machine controlling circuit.

The utility model principle of work is when automobile start is lighted a fire, stir the automatic transfer switch closure by ignition key, single chip machine controlling circuit makes automobile work in backsight range finding alarm condition with multi-functional backsight range finding warning device, incoming signal by antenna and BVCD video compact disk player just cuts off, this moment can be by scenery behind the backsight observation car on the television screen, object is apart from tailstock range data after demonstrating car on the screen simultaneously, when object behind the car when tailstock distance delimits as 1.5 meters less than one, the single chip machine controlling circuit output audio signal, deliver to the tv audio circuit, television set speaker is just sent alarm sound, and minimum limit is adjusted apart from requiring difference to regulate with the speed of a motor vehicle.When the automobile stagnation of movement, when electrical generator is flame-out, stir automatic transfer switch S by ignition key ₂Open, cut off backsight range finding warning circuit by Single-chip Controlling.Automatically connect TV set aerial and VCD video compact disk player circuit simultaneously, but TV reception or video disc.

In driving way, this device works under the backsight range finding alarm condition, and antenna and video compact disk player circuit be when being cut off, if do not need backsight, the occupant requires to teleview or video disc then can be pressed Manual Transfer Switch S ₃, then connect antenna and video compact disk player circuit, and cut off backsight range finding warning circuit simultaneously, just can teleview or video disc.

Reset switch S ₁By M/C, make device return to normal working.

The utility model advantage is that it has several functions, not only can be with camera from TV Observe scenery behind the car on the machine screen, and be not subjected to vehicle body to block restriction, and can be with ultrasound Go out and show object distance data behind the car, and at the critical distance alarm, guarantee driving safety, When not needing the backsight range finding to report to the police, utilize over-car antenna and VCD video disc player simultaneously, again can be compatible Teleview or video disc. Reach rest and entertainment and obtaining information.

Claims (2)

1. an automobile is with multi-functional backsight range finding warning device, it is characterized in that it is attached to minitelevision by camera, be attached to ultrasonic emitting and received signal treatment circuit by the ultrasonic emitting probe respectively with the super sonic receiving transducer in addition, be connected to single chip machine controlling circuit again, be attached to vision receiver then and form, vision receiver also can connect with antenna and VCD video compact disk player; By singlechip chip IC ₁, integrated circuit die I C ₂, diode D, triode N ₁～N ₅, capacitor C ₄～C ₁₀, resistance R ₇～R ₁₅, switch S ₁～S ₃Be connected into single chip machine controlling circuit, IC ₁37,36 pin and 39,38 pin connect with 2 pairs of mouths of received signal treatment circuit with 2 identical ultrasonic emitting respectively, 32,33,34 pin are connected to vertical deflection circuit, line-scan circuit and the voice frequency circuit of vision receiver, R respectively ₁₁With N ₃Pipe collector is contact output ultrasonic wave ranging data signal altogether, is connected to the vision receiver video amplifier circuit, N ₄Pipe collector output camera operating voltage is connected to camera, N ₅Pipe collector is exported tuner intermediate level circuit operating voltage, is connected to the tuner intermediate level circuit of vision receiver.

According to claim 1 fast automobile with multi-functional backsight range finding warning device, it is characterized in that comprising in its single chip machine controlling circuit an automatic transfer switch S by the key operated control of automotive ignition ₂With a Manual Transfer Switch S by manual direct control control ₃

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