CN206563745U - A kind of drinking drive detector smart circuit - Google Patents

Abstract

The utility model discloses a kind of drinking drive detector smart circuit, including resistance R1, resistance R2, resistance R3 and chip IC 2, one end of the resistance R1 connects the pin 1 of resistance R2, resistance R3, power supply E positive pole, the pin 1 of chip IC 1, the pin 1 of chip IC 2 and chip IC 3, the resistance R1 other end connects resistance R4 and three end adjustable reference source P reference pole, and the resistance R4 other end connects the pin 2 of diode D1 negative electrode, resistance R7, a potentiometer RP1 fixing end, three end adjustable reference source P anode, magnetic valve A and chip IC 4.The utility model drinking drive detector smart circuit uses vehicular power-bottle as power supply, not only there is basic alcohol detection warning function, automobile starting can also be automatically prevented from when motorist is drunk, there is automobile storage battery undervoltage warning function simultaneously, it is disguised high, it is difficult to crack, therefore has the advantages that easy to use, degree of intelligence is high and sound and light alarm.

Description

A kind of drinking drive detector smart circuit

Technical field

The utility model is related to a kind of detection device, specifically a kind of drinking drive detector smart circuit.

Background technology

Drunk driving is that one of maximum reason of traffic accident occur at present, therefore, and country is very tight to the efforts of investigation and prosecution of drunk driving Lattice, traffic law is fixed, drinks or drink-driving, revokes a driving licence immediately once finding, but China drinks and exchanges text Change causes many people inevitably to drink, and more people do not know about and drink that how much wine can be examined out, does not also know and drinks How long to recover after wine, everyone constitution is also differed, metabolic speed is different, therefore drunk driving detector is After drinking again need to drive personage indispensability thing, can easily detect the alcohol amount contained in blood of human body, conveniently sentence Can disconnected to drive, the drunk driving detector generally existing of in the market be complicated, and sensitivity is low, and function is single, and popularity rate is not high.

Utility model content

The purpose of this utility model is to provide a kind of drinking drive detector smart circuit, to solve above-mentioned background technology The problem of middle proposition.

To achieve the above object, the utility model provides following technical scheme：

A kind of drinking drive detector smart circuit, including resistance R1, resistance R2, resistance R3 and chip IC 2, the resistance R1 one end connection resistance R2, resistance R3, power supply E positive pole, the pin 1 of chip IC 1, the pin 1 of chip IC 2 and chip IC 3 Pin 1, the resistance R1 other end connects resistance R4 and three end adjustable reference source P reference pole, resistance R4 other end connection Diode D1 negative electrode, resistance R7, a potentiometer RP1 fixing end, three end adjustable reference source P anode, magnetic valve A and core Piece IC4 pin 2, resistance R2 other end connecting triode V1 base stage and three end adjustable reference source P negative electrode and triode V1 base stage, the triode V1 colelctor electrode connection resistance R3 other end, triode V1 emitter stage connection diode D1 sun Pole, the pin 2 of chip IC 1 is grounded, and the pin 3 of chip IC 1 connects the pin 3 of chip IC 2, the connection current potential of pin 2 of chip IC 2 Device RP1 another fixing end, potentiometer RP1 sliding end connects the pin 5 of chip IC 3, and the pin 3 of chip IC 3 connects electricity The pin 5 and the pin 8 of chip IC 4 of R6, loudspeaker B and resistance R8, resistance R6 other end connection chip IC 4 are hindered, chip IC 4 The connecting triode V2 of pin 3 base stage, the triode V2 colelctor electrode connection loudspeaker B other end, triode V2 emitter stage connects The connecting resistance R7 other end, the resistance R8 other end connection magnetic valve A other end.

It is used as preferred scheme of the present utility model：The diode D1 is light emitting diode.

It is used as preferred scheme of the present utility model：The model LM7805 of the chip IC 1, the model of the chip IC 2 For MQ-3, the model TW8778 of chip IC 3, the model KD9561 of chip IC 4.

It is used as preferred scheme of the present utility model：The model of the triode V1 and V2 is 3DG6C.

It is used as preferred scheme of the present utility model：The model TL431 of the three ends adjustable reference source P.

It is used as preferred scheme of the present utility model：The power supply E is vehicular power-bottle.

Compared with prior art, the beneficial effects of the utility model are：The utility model drinking drive detector intelligence electricity Road uses vehicular power-bottle as power supply, not only with basic alcohol detection warning function, moreover it is possible to when motorist is drunk Automobile starting is automatically prevented from, it is disguised high while have automobile storage battery undervoltage warning function, it is difficult to crack, therefore with using High and sound and light alarm the advantage of convenient, degree of intelligence.

Brief description of the drawings

Fig. 1 is the circuit diagram of drinking drive detector smart circuit；

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

Referring to Fig. 1, in the utility model embodiment, a kind of drinking drive detector smart circuit, including resistance R1, electricity Hinder R2, resistance R3 and chip IC 2, one end connection resistance R2 of the resistance R1, resistance R3, power supply E positive pole, chip IC 1 The pin 1 of pin 1, the pin 1 of chip IC 2 and chip IC 3, resistance R1 other end connection resistance R4 and three end adjustable reference sources P reference pole, resistance R4 other end connection diode D1 negative electrode, resistance R7, a potentiometer RP1 fixing end, three ends The pin 2 of adjustable reference source P anode, magnetic valve A and chip IC 4, resistance R2 other end connecting triode V1 base stage and Three end adjustable reference source P negative electrode and triode V1 base stage, the triode V1 colelctor electrode connection resistance R3 other end, three poles Pipe V1 emitter stage connection diode D1 anode, the pin 2 of chip IC 1 is grounded, the connection chip IC 2 of pin 3 of chip IC 1 Pin 3, the connection potentiometer of pin 2 RP1 of chip IC 2 another fixing end, potentiometer RP1 sliding end connection chip IC 3 Pin 5, the connection of pin 3 resistance R6, the loudspeaker B of chip IC 3 and resistance R8, resistance R6 other end connection chip IC 4 are drawn Pin 5 and the pin of chip IC 48, the connecting triode V2 of pin 3 of chip IC 4 base stage, triode V2 colelctor electrode connection loudspeaker The B other end, the triode V2 emitter stage connection resistance R7 other end, resistance R8 other end connection magnetic valve A's is another End.

Diode D1 is light emitting diode.The model LM7805, the model MQ-3 of the chip IC 2, core of chip IC 1 Piece IC3 model TW8778, the model KD9561 of chip IC 4.Triode V1 and V2 model are 3DG6C.Three ends can Adjust a reference source P model TL431.Power supply E is car in storage battery.

Operation principle of the present utility model is：Resistance R1-R4, three end adjustable reference source P, triode V1 and hair in circuit Voltage after optical diode D1 composition vehicular power-bottle detection circuits, resistance R1 and resistance R2 partial pressures is used as three end adjustable reference source P Reference voltage, when its voltage is reduced, three end adjustable reference source P cathode potential rises, when vehicular power-bottle reaches under-voltage value When, triode V1 conductings, light emitting diode D1 sends feux rouges, carries out undervoltage warning, and alcohol sensor IC2 is being arranged on driver's cabin just Front, the gas for detecting driver's exhalation, when it detects alcohol concentration beyond normal range (NR), 1, resistance between 2 pin Diminish so that potentiometer RP1 sliding end current potential rise.When the current potential is increased to certain value, in high-power switch device IC3 Portion is connected, magnetic valve A energized actions, cuts off fuel tank fuel feeding, IC4 speech ICs is started working, and it is exported through triode Loudspeaker B is promoted to send the alarm of " forbidding drunk driving " after V2 amplifications.

Claims (6)

1. a kind of drinking drive detector smart circuit, including resistance R1, resistance R2, resistance R3 and chip IC 2, its feature exist In one end connection resistance R2, resistance R3, power supply E positive pole, the pin 1 of chip IC 1, the pin of chip IC 2 of the resistance R1 1 and the pin 1 of chip IC 3, resistance the R1 other end connect resistance R4 and three end adjustable reference source P reference pole, resistance R4's Other end connection diode D1 negative electrode, resistance R7, a potentiometer RP1 fixing end, three end adjustable reference source P anode, Magnetic valve A and the pin of chip IC 42, resistance R2 other end connecting triode V1 base stage and three end adjustable reference source P the moon Pole and triode V1 base stage, the triode V1 colelctor electrode connection resistance R3 other end, triode V1 emitter stage connection two Pole pipe D1 anode, the pin 2 of chip IC 1 is grounded, the pin 3 of chip IC 1 connects the pin 3 of chip IC 2, and chip IC 2 is drawn The connection potentiometer of pin 2 RP1 another fixing end, potentiometer RP1 sliding end connects the pin 5 of chip IC 3, chip IC 3 The pin 5 and the pin of chip IC 4 of the connection resistance of pin 3 R6, loudspeaker B and resistance R8, resistance R6 other end connection chip IC 4 8, the connecting triode V2 of pin 3 of chip IC 4 base stage, the triode V2 colelctor electrode connection loudspeaker B other end, triode V2 Emitter stage connection resistance R7 the other end, the resistance R8 other end connection magnetic valve A other end.

2. drinking drive detector smart circuit according to claim 1, it is characterised in that the diode D1 is luminous Diode.

3. drinking drive detector smart circuit according to claim 1, it is characterised in that the model of the chip IC 1 For LM7805, the model MQ-3 of the chip IC 2, the model TW8778 of chip IC 3, the model KD9561 of chip IC 4.

4. drinking drive detector smart circuit according to claim 1, it is characterised in that the triode V1's and V2 Model is 3DG6C.

5. drinking drive detector smart circuit according to claim 1, it is characterised in that the three ends adjustable reference source P model TL431.

6. drinking drive detector smart circuit according to claim 1, it is characterised in that the power supply E is vehicle mounted electric Bottle.