CN2071138U - Theft-proof liquor-prevent controller for automobile - Google Patents

Abstract

The utility model relates to a theft-proof and liquor-prevent controller for an automobile, which integrates an antitheft function and a driver's intoxicated driving preventing function into a whole. The controller is composed of an alcohol sensitive detector, a code dial disc, an observe and control circuit and a sounding alarm circuit. A 555 time-base integrated circuit which has good performance and is easy to buy is used as a main body circuit. The utility model has the advantages of simple circuit structure, reasonable structure, reliable performance, artful structure and convenient installation, and is suitable for the working environment of automobiles.

Description

Theft-proof liquor-prevent controller for automobile

The utility model relates to a kind of vehicle body fittings of using without approval of preventing, specifically a kind ofly prevents to use the driving engine and the vehicle body fittings of cranking signal device simultaneously.

Existing alcohol prohibition or vehicle anti-theft controller, all are mono-functional devices, because alcohol prohibition and antitheft different in kind, field differs far away under it, and because the complexity of coding, decoding scheme makes alcohol prohibition and antitheft these two kinds of functions not merge to so far in the controller.To telemetry circuit, generally also all be to adopt discrete electronic component by comparison, time-delay, amplification etc., its output control actuating component is moved and is constituted then, because components and parts are many, make reliability decrease, make troubles for making, use, fault judgement and maintenance.

The purpose of this utility model just provides a kind of will the alcohol prohibition and merge into a single whole and the automobile controller that control circuit is simple in structure of cipher anti theft, and this controller not only can send alerting signal, but also can stop the startup of automotive engine.

The utility model is achieved in that on the controller of being made up of wine responsive detectors, control circuit, audible alarm circuit have a password dial to be connected to the input end of telemetry circuit.When one of the situation that Lou has driver's wine-drinking or its people to steal car took place, controller all can move, by telemetry circuit disconnection automotive ignition power supply, and sent audible signal by single loud warning circuit.Simultaneously for simplifying circuit structure, select in telemetry circuit that integrated package NE555 makes comparisons for use, time-delay, amplifying device, improved the reliability of controller.

The utility model collection is antitheft and prevent that driver's two functions of drivining a car under the influence of alcohol from being one, is the main body circuit with the time-base integrated circuit, circuit is simple, rationally, dependable performance, complete machine structure be small and exquisite, easy for installation, is fit to the automobile working environment.This controller can reduce train operation accident and the generation of stealing the car case after drinking effectively.

Implementation below in conjunction with this device of description of drawings.

Fig. 1 is the circuit diagram of this controller.

Fig. 2 is the combination disk printed circuit board arrangement figure of this controller.

Fig. 3 is the schematic circuit diagram of this controller.

As shown in Figure 1, wine responsive detectors B and password dial A are connected to the input end of telemetry circuit E, and its mouth is connected with the input end of audible alarm circuit G, thereby have constituted the integral structure of this controller.Password dial A is by 3-8 combination disk and connect and form.As select 4 combination disk for use, then can constitute total number and be 10000 puzzle theft-proof lock.Combination disk and connect many more, secret progression is just high more.Combination disk can adopt ten to select a dial, but since every number number difference that combination disk is selected, the position difference of line on the printed circuit board (PCB), and during batch manufacturing, the possibility that bonding wire is made mistakes just increases greatly.Also combination disk can be made ten forms of selecting a dial, printed circuit board (PCB) adopts structure shown in Figure 2.Be that circuit card 1 is circle overcoat one an open circles annular in, a pig-tail wire is arranged on the annulus, interior circle is drawn single line by the annulus opening part.The annulus opening is internally round mutually 10 different aperture positions, and 0-9 is ten numbers on the corresponding dial.Have only when the sliding end of dial forwards opening part to, two pig-tail wires open circuit, and forward other position to, the equal short circuit of two pig-tail wires.Choose combination disk and number by a certain password, its pig-tail wire is divided in parallel two groups, welded together, promptly constitute a password dial.Because on each cryptochannel plate two pig-tail wires are arranged, line promptly is welded from these two lines, therefore, its welding manner is all the same, the difference that does not have the position when batch manufacturing, has been got rid of and is resembled ten and select the complexity in dial line when welding and easy error situation.

In this controller circuitry schematic diagram shown in Figure 3, the wine responsive detectors is selected quartz conductor wine sensing device for use, by the fixed stably depressor 7805 of three ends 5V is arrived in automobile+12V level voltage stabilizing, for it provides heating source.6 ends of NE555 among the telemetry circuit E are received in detector output by potential device W.Two groups of pig-tail wires of password dial, a winding ignition lock, one group of 6 end of also receiving NE555.General by 555 conventional usages, 6 ends and 2 terminate at together as input end, yet at this moment the winding in its input-output characteristic is too big, is not suitable for the device of making comparisons, and at 2,6 end indirect resistance R1,2 ends are through resistance R 2 ground connection for this reason.5 ends are through resistance R 3 ground connection, and making the accurate voltage of 6 end groups is half of power line voltage.Outer meeting resistance R1, R2 change trigger level jointly, make 555 original 4V giant singles become the small circle characteristic of 0.7V.3 ends link to each other with electric apparatus coil, and integrated package 555 is formed control circuit E with relay J.The normally closed contact of relay J is connected between ignition lock and the high-tension coil, and its open contact is connected between the input end of ignition lock and audible alarm circuit G.Audible alarm circuit G can adopt common acoustics circuit, select for use integrated package NE556 to constitute power circuit in this controller, meet a diode D4 between its 5 end and 12 ends, resistance R 5, R6 and capacitor C 3 form the low-frequency oscillation of 3.6HZ, R7, R8, C5 form the HF oscillation of 1300HZ, oscillating signal is controlled HF oscillation through D4, make loudspeaker produce " pout, pout " sound, when password dial deciphering and alcohol concentration are lower than warning concentration, 2 ends of NE555 are " 0 " attitude, 3 ends output high level, J is failure to actuate, and automotive engine normally starts.When the password dial had at least one to dial the wrong number, two pig-tail wire short circuits were communicated with, and 6 ends are one state; When perhaps alcohol concentration was higher than warning concentration, 6 ends also were one state, 3 end output low levels, and the automotive ignition power supply is cut off in the J action, connects audible alarm circuit simultaneously, sends alerting signal.

In circuit, the installation of diode D1, D2 can prevent that polarity of voltage from connecing instead, burns circuit; Insurance RO selects the resistance-type insurance for use, makes controller that good vibration-isolating effect be arranged; The small circle characteristic of NE555, can avoid effectively exhale, alcohol concentration is different and the situation of relay continuous action is taken place when inhaling.

Claims (6)

1, a kind of automobile alcohol prohibition anti-theft controller is made up of wine responsive detectors, telemetry circuit, audible alarm circuit, it is characterized in that also having password dial A to be connected to the input end of telemetry circuit.

2, controller according to claim 1 is characterized in that password dial A is by 3-8 combination disk and connect and form.

3, controller according to claim 2 is characterized in that combination disk is ten to select a dial form, and its circuit card 1 is a circle overcoat one an open circles annular, and a pig-tail wire is arranged on the annulus, and interior circle is drawn single line by the annulus opening part.

4, according to claim 1,2 or 3 described controllers, it is characterized in that telemetry circuit E is made up of integrated package NE555 time base circuit and relay J, connecting resistance R1 between 2,6 ends of NE555,2 ends are through resistance R 2 ground connection.

5, controller according to claim 4 is characterized in that the normally closed contact of relay J is connected between ignition lock and the high-tension coil, and its open contact is connected between the input end of ignition lock and audible alarm circuit G.

6, according to claim 1,2 or 3 described controllers, it is characterized in that audible alarm circuit G constitutes power circuit by integrated package NE556, connect one between its 5 end and 12 ends, diode D4.

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