CN2249929Y - Multifunctional anti-stealing alarm - Google Patents

Abstract

The utility model discloses a multifunctional anti-theft alarm, which is composed of a motion sensor and an alarm circuit, wherein, the alarm circuit comprises an amplifying shaping circuit, a time delay control circuit, an audio generating circuit and a power amplifying circuit; the four circuits respectively adopts an integrated circuit for completion. The utility model has the advantages of sensitivity, convenience, long service life, simple structure, compactness, portability, wide application and power source saving.

Description

Use burglar alarm more

The utility model relates to warning device, especially electronic anti-theft alarm.

The kind of burglar alarm is more, and great majority all are mounted in stationary applica-tions, comes detection alarm as using emitting and receiving equipments such as infrared ray, ultrasound wave, radar wave; Or the employing ad hoc fashion, as being installed, thin wire, mercury cut-off, magnetic switch etc. realize reporting to the police with broken string or conduction mode.Generally have to use shortcomings such as inconvenient, dumb, that inconvenience is moved are installed.

Task of the present utility model provides a kind of installation occasion, mode arbitrarily, without any need for the independent monomer formula burglar alarm of external annex.

How being made of motion sensor and warning circuit with burglar alarm, it is numerous motion sensor of using of introducing in 952304813 the Chinese patent application that motion sensor adopts application number; Warning circuit comprises shaping amplification circuit, delay control circuit, sound generating circuit and power amplification circuit, and this four partial circuit all adopts integrated circuit to finish.Shaping amplification circuit IC ₁Select CD for use ₄₀₆₉Hex inverter, the output electric signal of motion sensor is linked into phase inverter FX ₁Input end, FX ₁Two ends cross-over connection resistance R ₁, capacitor C ₁, output terminal is through resistance R ₂, capacitor C ₂Ground connection, R ₂With C ₂Contact insert phase inverter FX ₂Input end; FX ₂Output terminal through resistance R ₃Insert phase inverter FX ₃Input end; FX ₃Two ends cross-over connection resistance R ₄, it is exported through resistance R ₅Insert IC ₂2 pin, IC ₂Adopt NE ₅₅₅Chip, its 1 pin ground connection, 6,7 pin connect through resistance R ₆Connect positive source, simultaneously through capacitor C ₃Ground connection, R ₆, C ₃Form first timing circuit; IC ₂8 pin connect positive source, and through capacitor C 4 ground connection, R ₇, C ₄Form second timing circuit; IC ₂3 pin output insert IC ₃Source electrode and IC ₄2 pin, as IC ₃And IC ₄Power supply; IC ₃Be KD ₉₅₆₁Music four tones of standard Chinese pronunciation sheet, its minus earth, the BP pin meets IC ₄7 pin; IC ₄Be power amplifier piece TDA ₂₈₂₂, its 5 pin and 6 pin cross-over connection capacitor C ₅, 5 pin and 8 pin cross-over connection capacitor C ₆, the direct ground connection of 4 pin, 1 pin and the output of 3 pin connect loudspeaker.

The utlity model has following advantage: but 1, adopt numerous with various motions such as the vibration of motion sensor Sensitive Detection, swing, rollings, be not subjected to the restriction of installation site and direction; 2, circuit is contactless, can avoid because the action that contact oxidation, laying dust etc. cause is malfunctioning, thereby can increase the service life greatly; 3, simple in structure, adopt integrated circuit can do small volume and less weight, need not external piece, flexible and convenient to use; 4, both can be used for the antitheft of fixation means such as door, window and lockset etc., also can be used for the article temporarily deposited, as the vehicle of parking, case and bag etc., applied range; 5, circuit adopts time base circuit NE ₅₅₅Output as the power supply of sound equipment sheet and power amplifier sheet, can eliminate quiescent current, save power supply.The utility model is not suitable for using on the vehicle of motion.

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is the utility model composition frame chart;

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

Fig. 3 is an external structure synoptic diagram of the present utility model.

Among Fig. 1, CG is numerous motion sensor of using, and I is an amplification and rectification circuit, and II is a delay control circuit, and III is a sound generating circuit, and IV is a power amplifier.

Among Fig. 2, shaping amplification circuit IC ₁By CD ₄₀₆₉Finish, the electric signal output of motion sensor CG inserts IC ₁1 pin, IC ₁1,2 pin cross-over connection resistance R ₁, capacitor C ₁, 2 pin are through resistance R ₂, capacitor C ₂Ground connection, R ₂, C ₂Contact meet IC ₁3 pin, IC ₁4 pin through resistance R ₃Connect 5 pin, 5 pin are through resistance R ₄Connect 6 pin, 7 pin ground connection.8 pin, 10 pin, 12 pin are unsettled, and 9 pin, 11 pin, 13 pin, 14 pin connect positive source by K switch G; Delay control circuit IC ₂Adopt NE ₅₅₅Chip, IC ₁6 pin output through R ₅Meet IC ₂2 pin, IC ₂1 pin ground connection, 5 pin are unsettled, 6 pin, 7 pin connect through capacitor C ₃Ground connection is through resistance R ₆Connect 8 pin, and connect positive source, 4 foot meridian capacitor C by K switch G ₄Ground connection, through resistance R ₇Connect positive source, R ₆, C ₃First time delay process and the R that form ₇, C ₄Second time delay process of forming is controlled the length of time of fire alarming respectively and is connect the time of electricity back delayed alarm.IC ₂3 pin output insert music four tones of standard Chinese pronunciation sheet KD respectively ₉₅₆₁Source electrode and power amplifier piece TDA ₂₈₂₂2 pin, music four tones of standard Chinese pronunciation sheet IC ₃Minus earth, the BP pin meets power amplifier piece IC ₄7 pin, IC ₄5 pin, 8 pin cross-over connection capacitor C ₅, 5 pin, 6 pin cross-over connection capacitor C ₆, 4 pin are connected with 6 pin and ground connection, and 1 pin, the output of 3 pin insert loudspeaker.

Principle of work of the present utility model is: motion sensor CG detects the fine motion conversion of signals and becomes pulsating direct current millivolt electric potential signal to be transported to IC ₁Integrated circuit CD ₄₀₆₉The output continuous impulse removes to trigger IC after finishing the amplification shaping ₂NE ₅₅₅Integrated circuit makes it monostable circuit upset output noble potential, removes to control music circuit sheet IC ₃KD ₉₅₆₁, making it to produce the chimes of doom electric signal, this signal is input to IC again ₄TDA ₂₈₂₂Integrated power amplifier goes to finish the powerful power amplification of alert audio signal, removes to promote the loudspeaker sounding again.

Figure 3 shows that external structure of the present utility model, motion sensor and alarm circuit partly are installed in the movement 1, and power switch 2 is arranged on the movement 1, pin clamp 3.This movement 1 can insert in the housing 4, with 4 one-tenth drawer-type structures of housing, louver 5, pin clamp 6 and lock ear 7 is arranged on the housing 4.The pin clamp 3 of the plug of latch 8 and movement 1 and the pin clamp 6 of housing 4 adapt.After movement is all packed housing into, latch 8 is inserted pin clamp 3 and pin clamp 6, again latch 8 and lock ear 7 are locked together, like this, outside surface does not have switch, makes the stranger can't remove warning.

Claims (2)

1, a kind of burglar alarm of forming by motion sensor and warning circuit, its warning circuit comprises shaping amplification circuit, delay control circuit, sound generating circuit and power amplification circuit, this four partial circuit all adopts integrated circuit to finish, and is characterised in that shaping amplification chip IC ₁Select CD for use ₄₀₆₉Hex inverter, the millivolt electromotive force output of motion sensor CG is linked into phase inverter FX ₁Input end, FX ₁Two ends cross-over connection resistance R ₁, capacitor C ₁, output terminal is through resistance R ₂, capacitor C ₂Ground connection, R ₂With C ₂Contact insert phase inverter FX ₂Input end; FX ₂Output terminal through resistance R ₃Insert phase inverter FX ₃Input end; FX ₃Two ends cross-over connection resistance R ₄, it is exported through resistance R ₅Insert IC ₂2 pin; IC ₂Adopt NE ₅₅₅Chip, its 1 pin ground connection, 6,7 pin connect through resistance R ₆Connect positive source, simultaneously through capacitor C 3 ground connection, R ₆, C ₃Form first timing circuit; IC ₂8 pin connect positive source, 4 pin are through resistance R ₇Connect positive source, and through capacitor C ₄Ground connection, R ₇, C ₄Form second timing circuit; IC ₂3 pin output insert IC ₃Source electrode and IC ₄2 pin, as IC ₃And IC ₄Power supply; IC ₃Be KD ₉₅₆₁Music four tones of standard Chinese pronunciation sheet, its minus earth, the BP pin meets IC ₄7 pin, IC ₄Be power amplifier piece TDA ₂₈₂₂, its 5 pin and 6 pin cross-over connection capacitor C ₅, 5 pin and 8 pin cross-over connection capacitor C ₆, the direct ground connection of 4 pin, 1 pin and the output of 3 pin connect loudspeaker.

2, according to claim 1 use burglar alarm more, it is characterized in that said sensor, warning circuit is installed in the movement 1, and switch 2, pin clamp 3 are arranged on the movement 1; This movement can insert in the housing 4, and louver 5, pin clamp 6 and lock ear 7 are arranged on the housing 4, and the pin clamp of the plug of latch 8 and movement 1, housing 4 adapts.

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