CN2400323Y - Anti-theft safety device for automotive vehicle - Google Patents

Abstract

The utility model relates to an anti-theft safety device for automotive vehicles, which is composed of a voltage-stabilizing filter circuit, a computer chip, a vibrating signal amplifier, a sensitivity regulator, a feedback detector of a key switch of an original vehicle, a feedback detector of a horn switch of the original vehicle, an acoustic pulse exciter and a casing. After the voltage stabilization filtration of the input of a power source, power is supplied for the whole machine; after the computer chip detects that an extinguishing wire of an external connecting vehicle key is grounded, through N3 signals of vibration sensor are amplifies, the signals are input into the computer chip IC1, alarm signals are output, and a horn is excited to sound through N1, N2. The utility model has the advantages of simple installation, low cost, etc.

Description

The motor vehicle antitheft protector

The utility model relates to a kind of for motor bike or automobile and be furnished with the power actuated vehicle of supply unit or device " motor vehicle antitheft protector " that non-power-driven vehicle uses.

At present, the special product of the anti-stealing safety that domestic and international self-propelled vehicle is furnished with is popularized wideless, the anti-stealing safety product of just being furnished with these products exists installs inconvenience, complex operation, cost an arm and a leg, wireless remote control coding decoding rate height, shortcomings such as false alarm rate height and applicable area are little, especially still less at the motor bike particular surroundings, for example: the most of special-purpose anti-stealing safety product of selling on the present market, the vehicle that only is suitable for the 12V storage battery, and need change the car load circuit when being installed on 6V storage battery vehicle, and former car circuit damage is serious when installing, the product consumption of current is big, thereby has reduced former car safety factor.

The purpose of this utility model is at the above the deficiencies in the prior art, and a kind of safety, low-power consumption, low price, easy to install and use are provided, intelligent motor vehicle anti-stealing safety device.

The utility model can be realized by following measure, it is by filter circuit of pressure-stabilizing, the vibration signal amplifier, filter circuit of pressure-stabilizing is made up of resistance R 8, resistance R 9, chemical capacitor E1, stabilivolt Z1, terminal S4, S5, S6, S4 terminal one termination public " ", the former automobile battery negative pole of another termination, S5, the former automobile battery positive pole of S6 terminal one termination, S5 terminal other end output VCC power supply, and connect by R8 series connection R9 connect again Z1 be connected to public " ", chemical capacitor E1 is in parallel with stabilivolt Z1, by Z1 negative pole output+5V power supply; The vibration signal amplifier is to be BP1, transistor N3 by shock sensor, resistance R 4, R5, capacitor C 1, C2 are formed, shock sensor BP1 one termination public " ", another termination capacitor C 1 one ends, the base stage of capacitor C 1 another termination transistor N3, R5 is parallel to transistor N3 base stage and collecting electrode, and collecting electrode connects R4 and C2 one end, another termination of R4+5V power supply, that C2 another termination computer chip IC1 (4) pin, transistor N3 emitter connect is public " "; It is characterized in that it also has additional: computer chip, sensitivity controller, former car key switch feedback detector, former car horn switch feedback detector, acoustic impluse exiter and housing, computer chip is made up of IC1, IC1 (8) pin connects+the 5V power supply, that IC1 (1) pin connects is public " ", the point of connection of IC1 (5) pin connecting resistance R3 and diode D1, the point of connection of IC1 (4) pin connecting resistance R6 and capacitor C 2; Sensitivity controller is made up of adjustable resistance W1, resistance R 6, R7, and adjustable resistance W1 connects with R7, the output of another termination of W1+5V, another termination of R7 public " ", R6 one termination W1 and the series connected point of connection of R7, R6 another termination computer chip IC1 (4) pin; Former car key switch feedback detector is made up of diode D3, diode D2, resistance R 2, terminal S1, S2, R2 connects with D2 is anodal, the D2 negative pole is connected with D3 is anodal, D2 negative pole connecting terminal S1 one end, the R2 other end is connected to+the 5V power supply, and R2 and D2 point of connection are connected to computer chip IC1 (6) pin, D2 and D3 point of connection connecting terminal S2 one end, the former car key switch motor of another termination of terminal S2 line one end that stops working, the former car key switch motor of another termination of the terminal S1 line other end that stops working; Former car horn switch feedback detector is by resistance R 3, diode D1, and terminal S3 forms, and R3 connects with D1 is anodal, another termination of R3+5V power supply, the series connected point of connection of R3 and D1 connects computer chip IC1 (5) pin, D1 negative pole connecting terminal S3 one end, the former car horn switch of another termination of S3 line; The sound stimulation device is made up of transistor N1, N2, resistance R 1, pulse transformer T1, thorn BP2, the N1 base stage connects computer chip IC1 (7) pin, connect the N2 base stage behind the N1 emitter series resistance R1, that the N2 emitter connects is public " ", the N2 collecting electrode connects the VCC power supply, the N1 emitter connects L1 winding (2) pin of pulse transformer T1, and L1 winding (1) pin of pulse transformer T1 connects the VCC power supply, and L2 winding (3), (4) pin of pulse transformer T1 connect loudspeaker BP2 two ends.

The utility model is compared with existing motor vehicle antitheft device, has the following advantages:

1, easy for installation, use simple, be fit to various vehicles and install.

2, microcomputer program control, stable performance, disturbance rejection is strong, can adapt to various complex environments.

3, sensing sensitivity, false alarm rate are very low.

4, intelligent alarm, warning acoustic pressure are big.

5, the complete machine consumption of current is very low.

6, cheap, long service life.

7, has automatic protection functions.

Description of drawings is as follows:

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

Filter circuit of pressure-stabilizing is by terminal S6, S5, S4 resistance R 8,49, chemical capacitor E1, stabilivolt Z1 forms serial regulating circuit, S5 terminal pig-tail wire be connected to former automobile battery+12V or+the 6V lead-in wire on, S5 terminal service conductor output VCC power supply, and through R8, R9 current limliting, Z1 voltage stabilizing, E1 filtering output+5V power supply, that S4 terminal service conductor connects is public " ", S4 terminal pig-tail wire connects former automobile battery negative pole, make the complete machine power supply, R8 selects for use 12K resistance, R9 to select 510 ohmages for use in circuit, Z1 selects the 4.1V stabilivolt for use, and E1 selects the 470U chemical capacitor for use.One-chip computer integrated circuit die I C1 is the IC chip of 8 pins, and its (1) pin connects+the 5V power supply, that (8) pin is connected to is public " ", IC1 selects PIC12C508 one-chip computer chip for use.The vibration signal amplifier is by shock sensor BP1, resistance R 4, R5, capacitor C 1, C2 and transistor N3 form, shock sensor BP1 is connected on the vibration signal amplifier in, C1 is the signal coupling capacitance, and the microseism signal is coupled on the amplifier in, another termination of C1 N3 base stage, R5 is parallel to base stage and the collecting electrode of N3, R4 one termination N3 collecting electrode, another termination+5V power supply, that the N3 emitter connects is public " ", make N3 be operated in magnifying state, C2 is a coupling capacitance, a termination N3 collecting electrode, (4) pin of another termination IC1, vibration signal after the amplification is coupled in computer chip IC1 through C2, BP1 selects voltage electroceramics sheet, C1 for use in circuit, C2 selects 0.1U electric capacity for use, and R4 selects 22K resistance for use, R5 selects 4.6M resistance for use, and N3 selects the C9014 transistor for use.Sensitivity controller is made up of adjustable resistance W1, resistance R 6, R7, W1, R6, R7 device one end link together, the W1 other end is connected to+the 5V power supply, another termination of R7 public " ", the R6 other end is connected to monolithic computing chip IC1 (4) pin, by regulating adjustable resistance W1, IC1 (4) pin voltage is changed from 5V-1.5V, thereby change IC1 (4) pin trigger level, realize the sensitivity adjusting, W1 selects the 100K adjustable resistance for use in circuit, and R6, R7 select 47K resistance for use.The acoustic impluse exiter is by transistor N1, N2, resistance R 1, pulse transformer T1, loudspeaker BP2 forms, the N2 collecting electrode links to each other with L1 winding (2) pin of pulse transformer T1, L1 winding (1) pin is connected to the VCC power supply, L2 winding (3) (4) pin connects loudspeaker BP2 two ends, the N1 base stage is connected to computer chip IC1's (7) pin, be connected to the N2 base stage behind the N1 emitter series resistance R1, the N1 collecting electrode connects the VCC power supply, when IC1 (7) pin output sound impulse singla, through transistor N1, after N2 and pulse transformer T1 excitation are amplified, promote loudspeaker BP2 sounding, N1 selects the C9014 transistor for use in circuit, N2 selects the BD137 transistor for use, BP2 selects piezoelectric ceramic piece for use, and T2 self-control method is: select E type ferrite magnetic core and plastic skeleton for use, use diameter to be the coiling of 0.14mm enamel wire, L1 is around 100 circles, and L2 is around 1100 circles.Former car key switch feedback detector is by terminal S1, S2, resistance R 2, diode D2, D3 forms, R2 be connected in series in terminal S1 with D3 again after D2 connects, another termination of R2+5V power supply, the series connected point of connection of R2 and D2 connects computer chip IC1 (6) pin, a D2 and D3 connecting terminal S1 that is connected in series, D2 negative pole connecting terminal S2, when former car key switch cuts out, make computer chip IC1 (6) pin become low level, after IC1 detects, under the programming control of chip internal, make this " motor vehicle antitheft protector " that anti-theft state is set automatically, when the shake sensor is received vibration signal, signal triggering IC1 (4) pin after N3 amplifies, under internal processes control, by IC1 (7) pin output sound impulse singla, by the acoustic impluse exiter, BP2 sends relevant alerting signal, R2 selects 47K resistance for use in the circuit, and D3 selects the 1N5401 diode for use, and D2 selects the 1N4007 diode for use.Former car horn switch feedback detector is by resistance R 3; diode D1; terminal S3 forms; R3 one end is connected with D1 one end; another termination of R3+5V power supply, the series connected point of connection of R3 and D1 connects computer chip IC1 (5) pin, the negative pole connecting terminal S3 of D1; when former car horn punch is pressed; computer chip IC1 (5) pin becomes low level, after IC1 detects, under internal processes control; export the acoustic impluse of blowing a trumpet by IC1 (7) pin; by the acoustic impluse exiter, make BP2 send the audio of blowing a trumpet, R3 selects 47K resistance for use in circuit; D1 selects the 1N4007 diode for use; in installation process, as diode D1 the misconnection circuit appears; D2; D3 will be reversed by isolating with former fare road, and power supply connects inverse time; stabilivolt forward Z1 conducting; by current-limiting resistance R8; R9 makes the not enough 10MA of counter-current, the not enough 0.7V of complete machine reverse voltage; can not damage former fare road and be somebody's turn to do " motor vehicle antitheft protector ", thereby play a protective role.

Claims (1)

1. A kind of motor vehicle antitheft protector, it comprises: filter circuit of pressure-stabilizing, the vibration signal amplifier, filter circuit of pressure-stabilizing is made up of resistance R 8, resistance R 9, chemical capacitor E1, stabilivolt Z1, terminal S4, S5, S6, S4 terminal one termination public " ", the former automobile battery negative pole of another termination, S5, the former automobile battery positive pole of S6 terminal one termination, S5 terminal other end output VCC power supply, and connect by R8 series connection R9 connect again Z1 be connected to public " ", chemical capacitor E1 is in parallel with stabilivolt Z1, by Z1 negative pole output+5V power supply; The vibration signal amplifier is to be BP1, transistor N3 by shock sensor, resistance R 4, R5, capacitor C 1, C2 are formed, shock sensor BP1 one termination public " ", another termination capacitor C 1 one ends, the base stage of capacitor C 1 another termination transistor N3, R5 is parallel to transistor N3 base stage and collecting electrode, and collecting electrode connects R4 and C2 one end, another termination of R4+5V power supply, that C2 another termination computer chip IC1 (4) pin, transistor N3 emitter connect is public " "; It is characterized in that also having additional: computer chip, sensitivity controller, former car key switch feedback detector, former car horn switch feedback detector, acoustic impluse exiter and housing, computer chip is made up of IC1, IC1 (8) pin connects+the 5V power supply, that IC1 (1) pin connects is public " ", the point of connection of IC1 (5) pin connecting resistance R3 and diode D1, the point of connection of IC1 (4) pin connecting resistance R6 and capacitor C 2; Sensitivity controller is made up of adjustable resistance W1, resistance R 6, R7, and adjustable resistance W1 connects with R7, the output of another termination of W1+5V, another termination of R7 public " ", R6 one termination W1 and the series connected point of connection of R7, R6 another termination computer chip IC1 (4) pin; Former car key switch feedback detector is made up of diode D3, diode D2, resistance R 2, terminal S1, S2, R2 connects with D2 is anodal, the D2 negative pole is connected with D3 is anodal, D2 negative pole connecting terminal S1 one end, the R2 other end is connected to+the 5V power supply, and R2 and D2 point of connection are connected to computer chip IC1 (6) pin, D2 and D3 point of connection connecting terminal S2 one end, the former car key switch motor of another termination of terminal S2 line one end that stops working, the former car key switch motor of another termination of the terminal S1 line other end that stops working; Former car horn switch feedback detector is by resistance R 3, diode D1, and terminal S3 forms, and R3 connects with D1 is anodal, another termination of R3+5V power supply, the series connected point of connection of R3 and D1 connects computer chip IC1 (5) pin, D1 negative pole connecting terminal S3 one end, the former car horn switch of another termination of S3 line; The sound stimulation device is made up of transistor N1, N2, resistance R 1, pulse transformer T1, perverse BP2, the N1 base stage connects computer chip IC1 (7) pin, the N1 collecting electrode connects the VCC power supply, connect the N2 base stage behind the N1 emitter series resistance R1, that N2 emission connects is public " ", the N2 collecting electrode connects L1 winding (2) pin of pulse transformer T1, and L1 winding (1) pin of pulse transformer T1 connects the VCC power supply, and L2 winding (3), (4) pin of pulse transformer T1 connect loudspeaker BP2 two ends.

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