CN2745072Y

CN2745072Y - Vehicle collision-preventing device

Info

Publication number: CN2745072Y
Application number: CN 200420094416
Authority: CN
Inventors: 钱云连; 张候龙; 陈通亮
Original assignee: SHENZHEN SHUNHE ELECTRICAL APPLIANCE TECHNOLOGY Co Ltd
Current assignee: SHENZHEN SHUNHE ELECTRICAL APPLIANCE TECHNOLOGY Co Ltd
Priority date: 2004-10-25
Filing date: 2004-10-25
Publication date: 2005-12-07
Anticipated expiration: 2014-10-25

Abstract

The utility model discloses a vehicle collision-preventing device, mainly comprising a SCM (Single Chip Machine) U2 and the peripheral elements of the SCM. In the sending and receiving circuit of the ultrasonic, the 40 KHz ultrasonic which is generated by the SCM U2 is assigned to the four-way ultrasonic driving circuit resistances R1, R3, R5 and R7 by the chip U1 of the multiplex circuit, and after being raised pressure by the driving intermediate-frequency transformers of the triodes Q1, Q2, Q3 and Q4, the 40 KHz ultrasonic is transduced into the ultrasonic by the ultrasonic probes S1, S2, S3 and S4 and is sent towards four directions. The reflected wave is transduced into electrical signals when the reflected wave arrive at the probes, and the signals with different orientations are sent to the interface capacitor C5 of the signal processing circuit by the chip U1 of the multiplex circuit. The utility model solves the problems of the multiposition simultaneous display of the collision-preventing device etc., and has the advantages of simple and reasonable structure, good reliability, easy mount, etc., which effectively avoids the problems of collision, scraping phenomena, etc. when parking or reversing.

Description

Anti-collision device for automobile

Technical field the utility model relates to a kind of anti-collision device for automobile, more particularly, relates to a kind of anti-collision device for automobile that in time shows by ultrasonic ranging and multi-faceted while.

Background technology in the prior art, existing anti-collision device for automobile, but most of product functions are single, the function that does not possess multi-faceted demonstration simultaneously, make the driver in the orientation of differentiating barrier and apart from the time, practicality and timeliness are not strong, the driver can not in time find and accurately judge various barriers, can not thoroughly avoid the generation of car accident, thereby need to improve.

Summary of the invention the object of the present invention is to provide a kind of ultrasonic ranging that utilizes, microcontroller calculates, analyzes, judges, then data are sent to display and loudspeaker and show anti-collision device for automobile with voice suggestion, to prevent from the generation of all kinds of car accidents in many ways.

For the attainment of one's purpose, the utility model provides following technical scheme: design a kind of anti-collision device for automobile, comprise primary control box assembly, display assembly, probe assembly, loudspeaker assembly.The primary control box assembly is arranged in the automobile back in-support carriage, the display assembly, the probe assembly, the loudspeaker assembly links to each other with primary control box assembly cable socket with lead or signal cable in the buried wirring mode respectively, master control borad circuit in the primary control box assembly of collision avoidance system is by central control circuit, the ultrasound wave transmitter/receiver circuit, multiplex electronics, signal processing circuit, voice warning circuit, display circuit and power circuit are formed, central control circuit comprises single-chip microcomputer U2 and peripheral element, ultrasound wave sends and accepts in the circuit, single-chip microcomputer U2 links to each other with the chip U1 of multiplex electronics, chip U1 divide four the tunnel with ultrasonic drive circuit resistance R 1, R3, R5, R7 links to each other, resistance R 1, R3, R5, R7 respectively with triode Q1, Q2, Q3, after the base stage of Q4 links to each other, through triode Q1, Q2, Q3, Zhou Jinhang boosted after ultrasonic probe S1 during Q4 drove, S2, S3, the S4 transducing becomes ultrasound wave and sends, hyperacoustic reflection wave is become electric signal by transducing again when arriving probe and delivers to the interface capacitance C5 of signal processing circuit through the chip U1 of multiplex electronics, signal processing circuit is by triode Q5, Q6, Q7, amplifier U3, single-chip microcomputer U2 and peripheral element thereof are formed, ultrasound wave and reflection wave thereof pass through by triode Q5 through capacitor C 5 again, three grades of selective frequency amplifier circuits that amplifier U3 forms, deliver to triode Q6, the circuit that Q7 forms carries out detection and is shaped to square wave, deliver to single-chip microcomputer U2 again, the chip U4 of voice warning circuit links to each other with the amplifier U5 of audio amplifier circuit, the amplifier U5 of audio amplifier circuit links to each other with loudspeaker SPEAKER, and the driver U8 of liquid crystal display drive circuit directly links to each other with power circuit and central control circuit.

This product is the analog digital commingled system, its main crashproof principle is to utilize ultrasonic ranging, microcontroller calculates, analyzes, judges, then data being sent to display and loudspeaker shows with the voice suggestion driver and notes, owing to adopt high speed microprocessor and high capacity display driver circuit, reasonably therefore mathematical algorithm can realize multi-faceted while Presentation Function.

Compared with prior art, the utlity model has following tangible advantage: 1, the utlity model has multi-faceted while display mode, make the driver find intuitively the barrier and the distance thereof of motor vehicle environment different azimuth, this electronic product effectively reduced the driver park, the collision when moveing backward, scraping phenomenon; 2, simple and reasonable, good reliability is easy to install.

Be description of drawings of the present utility model below the description of drawings:

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is master control borad circuit theory diagrams of the present utility model;

Fig. 3 is a display circuit schematic diagram of the present utility model;

Fig. 4 is a structural representation of the present utility model.

By specific embodiment the utility model is carried out more detailed description below the embodiment:

With reference to Fig. 1～4, master control borad circuit in the primary control box assembly of collision avoidance system is by central control circuit, the ultrasound wave transmitter/receiver circuit, multiplex electronics, signal processing circuit, voice warning circuit, display circuit and power circuit are formed, central control circuit comprises single-chip microcomputer U2 and peripheral element, ultrasound wave sends and accepts in the circuit, single-chip microcomputer U2 links to each other with the chip U1 of multiplex electronics, chip U1 divide four the tunnel with ultrasonic drive circuit resistance R 1, R3, R5, R7 links to each other, resistance R 1, R3, R5, R7 respectively with triode Q1, Q2, Q3, after the base stage of Q4 links to each other, through triode Q1, Q2, Q3, Zhou Jinhang boosted after ultrasonic probe S1 during Q4 drove, S2, S3, the S4 transducing becomes ultrasound wave and sends, when hyperacoustic reflection wave arrives probe by being become electric signal by transducing and delivering to the interface capacitance C5 of signal processing circuit through the chip U1 of multiplex electronics, signal processing circuit is by triode Q5, Q6, Q7, amplifier U3, single-chip microcomputer U2 and peripheral element thereof are formed, ultrasound wave and reflection wave thereof pass through by triode Q5 through capacitor C 5 again, three grades of selective frequency amplifier circuits that amplifier U3 forms, deliver to triode Q6, the circuit that Q7 forms carries out detection and is shaped to square wave, deliver to single-chip microcomputer U2 again, the chip U4 of voice warning circuit links to each other with the amplifier U5 of audio amplifier circuit, the amplifier U5 of audio amplifier circuit links to each other with loudspeaker SPEAKER, and the driver U8 of liquid crystal display drive circuit directly links to each other with power circuit and central control circuit.

By Fig. 1,2 as seen, mainly constitute by single-chip microcomputer U2 and peripheral element thereof, every other circuit is controlled, is dispatched by this circuit, and the setting of the final processing of signal, the generation of ultrasonic signal, display display mode, the pattern setting of voice are also finished by this circuit; Ultrasound wave sends, accepts in the circuit, the 40KHz ultrasound wave is assigned to four road ultrasonic drive circuit resistance R 1, R3 by the generation of single-chip microcomputer U2 P2.1 pin through the pin 13 of the chip U1 of multiplex electronics, R5, on the R7, Zhou Jinhang boosts after ultrasonic probe S1, S2, S3, S4 transducing become ultrasound wave in driving via triode Q1, Q2, Q3, Q4, sends to four direction respectively.Produce reflection wave when ultrasound wave runs into barrier, this reflection wave is become electric signal by transducing again when arriving probe, delivers to the interface capacitance C5 of signal processing circuit through the chip U1 of multiplex electronics according to the signal of different azimuth; The chip U1 of multiplex electronics selects different news road X0-X3 to send ultrasonic signal by single-chip microcomputer U2 control, selects different news road Y0-Y3 to receive reflection wave simultaneously; Signal processing circuit is by triode Q5, Q6, Q7, amplifier U3, single-chip microcomputer U2 and peripheral element thereof are formed, three grades of selective frequency amplifier circuits that ultrasound wave and reflection wave thereof are formed through triode Q5, amplifier U3 through capacitor C 5, the circuit of delivering to triode Q6, Q7 composition carries out detection and is shaped to square wave, deliver to the 19 pin P0.3 of single-chip microcomputer U2 again, single-chip microcomputer calculates the distance and the orientation thereof of barrier according to the mistiming of transmitted wave and reflection wave; In the voice warning circuit, single-chip microcomputer is according to detected azimuth-range, sending controling instruction is to the IC U4 of sound circuit, and U4 accepts the instruction back and sends voice signal and drive to the amplifier U5 of audio amplifier circuit that loudspeaker SPEAKER carries out the voice reporting obstacle distance or voice reporting barrier orientation points out the driver to note.Power circuit is divided into three groups of power supplys, from the accumulator of automobile 12V, becomes reflection electric circuit power vd D via one-level filtering, via three terminal regulator U6 and filtering circuit formation+8V power supply, via three terminal regulator U7 and filtering circuit formation+5V power supply.

Shown in Fig. 1～3, single-chip microcomputer is according to detected azimuth-range, display position and range data are sent to the driver U8 of liquid crystal display drive circuit by multicore signal cable line, on LCD, show 2-6 orientation simultaneously, left front, dead ahead, right front, left back, right back, dead astern, product according to different model, the different obstacle distance of orientation quantity that probe number difference then shows reaches and shows nearest obstacle distance in the lower right in big word mode, makes the surrounding condition of the omnibearing understanding car of driver.

With reference to Fig. 3, the display assembly is the main man-machine interface of this utility model, comprises the display circuit of being made up of the LCD panel LCD of driver U8, display part, LED backlight.

With reference to Fig. 4, on physical construction, the utility model can be divided into primary control box assembly, display assembly, probe assembly, loudspeaker assembly, the primary control box assembly is installed in the automobile back in-support carriage, display assembly, probe assembly, loudspeaker assembly carry out interface with the primary control box assembly with lead or signal cable respectively, the display assembly is installed in the convenient place of observing of driver in the pilothouse, on the interface CN6 on the primary control box assembly of signal cable buried wirring in the back in-support carriage.The probe assembly is according to user's selection, optional 2-8 probe is installed in before and after the automobile with embedded mode respectively or only is installed on the bumper of back, probe wire is buried wirring interface CN1-CN4 on the primary control box assembly to the back in-support carriage in car body, the loudspeaker assembly be installed in the pilothouse any position all can, the lead buried wirring is to the back in-support carriage on the interface CN5 on the primary control box assembly.

In the specific implementation process, the primary control box assembly is the main circuit part of this utility model, form by master control borad and outer casing upper cover, shell lower cover, have on the circuit board and the interface CN1-CN4 of the assembly of popping one's head in (eight probes be CN1-CN8), with the interface CN5 of power supply and loudspeaker assembly and the interface CN6 of display; The interface J1 of display circuit and primary control box, the interface CN6 by signal cable and primary control box links to each other; The probe assembly is made up of probe core, glue lining, shell, lead, is wired to the interface CN1-CN4 (eight probes be CN1-CN8) of primary control box assembly; The loudspeaker assembly is made up of loudspeaker, switch, shell protecgulum, shell bonnet, lead.Be connected to the interface CN5 of primary control box assembly by lead.

Claims

1, a kind of anti-collision device for automobile, comprise the primary control box assembly, the display assembly, the probe assembly, loudspeaker assembly and automobile power source, the primary control box assembly is arranged in the automobile back in-support carriage, the display assembly, the probe assembly, the loudspeaker assembly links to each other with primary control box assembly cable socket with lead or signal cable in the buried wirring mode respectively, it is characterized in that: the master control borad circuit in the primary control box assembly is by central control circuit, the ultrasound wave transmitter/receiver circuit, multiplex electronics, signal processing circuit, voice warning circuit, display circuit and power circuit are formed, central control circuit comprises single-chip microcomputer U2 and peripheral element, in the ultrasound wave transmitter/receiver circuit, single-chip microcomputer U2 links to each other with the chip U1 of multiplex electronics, chip U1 divide four the tunnel with ultrasonic drive circuit resistance R 1, R3, R5, R7 links to each other, resistance R 1, R3, R5, R7 respectively with triode Q1, Q2, Q3, after the base stage of Q4 links to each other, through triode Q1, Q2, Q3, Zhou Jinhang boosted after ultrasonic probe S1 during Q4 drove, S2, S3, the S4 transducing becomes ultrasound wave and sends, when hyperacoustic reflection wave arrives probe by being become electric signal by transducing and delivering to the interface capacitance C5 of signal processing circuit through the chip U1 of multiplex electronics, signal processing circuit is by triode Q5, Q6, Q7, amplifier U3, single-chip microcomputer U2 and peripheral element thereof are formed, ultrasound wave and reflection wave thereof pass through by triode Q5 through capacitor C 5 again, three grades of selective frequency amplifier circuits that amplifier U3 forms, deliver to triode Q6, the circuit that Q7 forms carries out detection and is shaped to square wave, deliver to single-chip microcomputer U2 again, the chip U4 of voice warning circuit links to each other with the amplifier U5 of audio amplifier circuit, the amplifier U5 of audio amplifier circuit links to each other with loudspeaker SPEAKER, and the driver U8 of liquid crystal display drive circuit directly links to each other with power circuit and central control circuit.