CN2057521U - Sipher anti-theft alarm - Google Patents

Abstract

The utility model relates to a cipher anti-theft safety device, which belongs to the field of the electronic control device, and comprises an alarm circuit, a cipher circuit, an off-switch circuit and a multifunctional control circuit. The utility model has the function of the alarm which is generated by the sound and the light and the function of the control which can be used for controlling a controlled device, and has the advantages of strong anti-interference ability and high safety performance. The utility model can be used for the anti-theft function of the device, such as the automobile, the motorcycle, the ship, the hotel and the storehouse.

Description

Sipher anti-theft alarm

A kind of cipher anti theft protector belongs to electronic-controlled installation.

In existing technology, the anti-stealing safety device is a lot, wherein utilizes the anti-stealing safety device of electronic technology, generally only have the function of sending sound, visual alarm, can not control burglary-resisting installation, circuit structure is also fairly simple, generally be that signal output apparatus is formed by the signal input.But along with antitheft needs, many equipment not only need to report to the police, and also need effectively to control, and to avoid theft, need control starting circuit, firing circuit as automobile, motorcycle.

The purpose of this utility model is exactly in order to overcome above-mentioned shortcoming, encryption apparatus to be set, burglary-resisting installation being controlled.

The purpose of this utility model is by by cryptochannel with use control circuit more, and the password pass gate circuit, crypto-alarm circuit, the anti-jamming circuit that are attached to cryptochannel are realized.Many operating keys are set on the cipher anti theft protector, do the signal input, the control cryptochannel, have only when the time, cryptochannel is opened, controlled device starting simultaneously by the proper password key, promptly according to the permutation and combination principle, but adopt Pyatyi silicon trigger circuit to compose in series cryptochannel.Prime silicon controlled anode connects back one-level silicon controlled negative electrode, and every grade of silicon controlled control utmost point is connected with operating key (being the cipher control key), and the operating key other end connects positive source by current-limiting resistance after connecing altogether; First order silicon controlled anode is connected with the controllable silicon anode that password closes gate circuit with electric capacity; The final stage silicon controlled anode of cryptochannel connects the control circuits of being made up of relay, transistor, resistance of using more, except that the final stage controllable silicon, every grade of silicon controlled anode joins with positive source by current-limiting resistance, connects anti-interference resistance between the first and last two-stage silicon controlled control utmost point and the power cathode (promptly); The controllable silicon anode that password closes gate circuit is connected through the controllable silicon anode of electric capacity and crypto-alarm circuit; Four operating key K are connected in parallel between the control utmost point of crypto-alarm circuit and the current-limiting resistance thereof ₁～K ₄Also connect anti-interference resistance between the SCR control utmost point of crypto-alarm circuit, password pass gate circuit and power cathode.

Have only the controllable silicon conducting in cryptochannel like this, just can make and how to connect with control circuit, the relay adhesive, controlled plant could start.Because the operating key of cipher anti theft protector has many, can be more than 12, and the actual cryptographic key quantity of control cryptochannel is few, in addition cryptographic key, controlling alarm key, close the door between operating key to connect and undertaken by permutation and combination method, which operating key the burglar cannot find out can be opened cryptochannel.In addition, password closes operating key also may command cryptochannel and the crypto-alarm circuit in the gate circuit; Alarm lamp is bright, alarming horn is sounded as long as mistake by a key, just can make for the operating key of crypto-alarm circuit, makes the cryptochannel locking simultaneously.

Fig. 1 is the structured flowchart of the utility model cipher anti theft protector.

Fig. 2 is the wiring diagram of the utility model cipher anti theft protector

Below in conjunction with accompanying drawing the utility model cipher anti theft protector is described in detail.

Among Fig. 11 is cryptochannel, and 2 for password closes gate circuit, and 3 are the crypto-alarm circuit, and 4 is anti-jamming circuit, and 5 for using control circuit more.

Successively by the silicon controlled negative electrode of one-level after the silicon controlled anode connection of prime, every silicon controlled control utmost point is connected the indirect current-limiting resistance of anode and positive source to cryptochannel with operating key by 5 controllable silicons.Be SCR ₃Plus earth, its anode connects SCR ₄Negative electrode, SCR ₄Anode connect SCR ₅Negative electrode, SCR ₅Anode connect SCR ₆Negative electrode, SCR ₆Anode and SCR ₇Negative electrode be connected SCR ₇Anode and use the control circuit relay J more ₁One end of solenoid is connected, another termination positive source of solenoid, SCR ₃Anode and the password capacitor C of closing gate circuit ₂Negative pole is connected; SCR ₃, SCR ₄, SCR ₅, SCR ₆, SCR ₇The control utmost point respectively with operating key K ₅, K ₆, K ₇, K ₈, K ₉One end is connected, K ₅, K ₆, K ₇, K ₈, K ₉The other end be connected to R in the road in the crypto-alarm circuit altogether ₂SCR ₃And SCR ₇The control utmost point and power cathode between connect anti-interference resistance R respectively ₁₁And R ₁₂, resistance value is 300K Ω; SCR ₃, SCR ₄, SCR ₅, SCR ₆Anode and positive source between the current-limiting resistance R that connects ₅, R ₆, R ₇, R ₈, resistance value is respectively 3K Ω, 2.7K Ω, 2.4K Ω, 2K Ω; All controllable silicon SCR are selected U _FOM=600V, I _F(AV)=1A, direct supply voltage are 12V.Have only and to press K in order ₅～K ₉During key, SCR ₃, SCR ₄, SCR ₅, SCR ₆, SCR ₇Could conducting.

Password closes gate circuit by SCR ₂, R ₃, R ₄, R ₁₀, C ₁, C ₂Element is formed.SCR ₂And SCR ₃Anode between meet an electrochemical capacitor C ₂, electric capacity is 10 μ/25V, SCR ₂Anode and the anode of crypto-alarm circuit between meet an electrochemical capacitor C ₁, C ₁Electric capacity and C ₂Identical; SCR ₂Anode and positive source between connect resistance R ₄, resistance value is 100K Ω, the negative pole of its negative electrode and power supply is connected SCR ₂The control utmost point and positive source between connect operating key K successively ₁₁, K ₁₀And resistance R ₃, resistance value is 47K Ω, and the resistance R that connects between the power cathode ₁₀, resistance value is 300K Ω.When reporting to the police or controlled plant need stop using the time, as long as meet K simultaneously ₁₀, K ₁₁Key just can stop alerting signal or make the controllable silicon in the cryptochannel end (promptly closing)

The crypto-alarm circuit is by SCR ₁, R ₁, R ₂, K ₁～K ₄, D ₁, LED ₁And SCR ₂The C that anode connects ₁Form.Operating key K ₁～K ₄Be in parallel their end and SCR ₁The control utmost point be connected the other end and R ₂An end be connected R ₉Be connected on SCR ₁Between the control utmost point and the ground, SCR ₁Anode connect R respectively ₂The other end, C ₁Negative pole, D ₁Negative pole and R ₁, R ₁The other end and positive source between connect LED ₁, LED wherein ₁Connect power end for just, meet R ₁End is for negative.D ₁Positive pole, promptly the point of the A among Fig. 2 is connected with audible alarm unit.When mistake is pressed K ₁～K ₄In arbitrary key the time, SCR ₁The conducting that is triggered, alarm lamp LED ₁Bright, alarming horn is sounded, the cryptochannel locking.R ₁, R ₂, R ₉Resistance value be respectively 1K Ω, 2K Ω and 300K Ω.

How with control circuit mainly by relay J ₁, BG ₁, R ₁₄, K ₁₂Form.J ₁Be the relay of two groups of normally opened contacts of tool, BG ₁Be Darlington complex pipe, K ₁₂Be operating key.

During DC control equipment, because BG ₁Emitter E meet J ₁Normally opened contact J _1-1, be connected to LED between emitter and the power cathode ₂, current-limiting resistance R ₁₃, connect operating key K between base stage and the power cathode ₁₂With biasing resistance R ₁₄, work as relay J ₁Adhesive, J _1-1Closed positive 12V power supply, the LED of connecting of normally opened contact ₂Bright, press K ₁₂Key, then BG ₁Conducting, the controlled device that is connected in power cathode and collector C end emitter E end starts; When exchanging opertaing device, relay normally open contact J _1-2Connect, connect J _1-2Solenoid valve or AC relay J ₂Adhesive exchanges the controlled device starting.Resistance R ₁₃, R ₁₄Resistance be respectively 1K Ω and 1.5K Ω, the relay parameter request: pick-up voltage 6V, contact current: when exchanging 240V is 5A, is 10A during direct current 24V.

Anti-jamming circuit is by R ₉～R ₁₂Forming, mainly is to prevent the influence of undesired signal to cryptochannel.

The utility model sipher anti-theft alarm has sound, light warning, controls simultaneously the function of controlled plant, and antijamming capability is strong, and is safe and reliable, is applicable to the antitheft of multiple starting equipment.

Claims (5)

1, a kind of cipher anti theft protector belongs to electronic-controlled installation, and it is closed gate circuit, anti-jamming circuit, how to be formed with control circuit by cryptochannel, crypto-alarm circuit, password.It is characterized in that the cryptochannel that is in series by Pyatyi controllable silicon SCR trigger circuit;

The anode of the prime controllable silicon SCR of described cryptochannel connects the negative electrode of back one-level controllable silicon SCR, first order controllable silicon SCR ₃Anode through capacitor C ₂, C ₁Be connected with the crypto-alarm circuit, the control utmost point of every grade of controllable silicon SCR is connected with operating key K, and the other end of operating key K is connected to current-limiting resistance R altogether ₂An end, R ₂The other end and crypto-alarm circuit controllable silicon SCR ₁Anode through R ₁, LED ₁Connect positive source, the chopped-off head controllable silicon SCR ₃Negative electrode and electricity and power cathode connect, except that the controllable silicon SCR of final stage, the anode of every grade of controllable silicon SCR passes through current-limiting resistance and is connected the anode of final stage controllable silicon SCR and opertaing device relay J with positive source ₁Be connected J ₁Another termination positive source.

2, cipher anti theft protector according to claim 1 is characterized in that also being provided with the password of being made up of operating key K, electrochemical capacitor C, controllable silicon SCR, current-limiting resistance R between the anode of first order controllable silicon SCR of described cryptochannel and the crypto-alarm circuit closes gate circuit.

First order controllable silicon SCR in the cryptochannel ₃Anode and the password electrochemical capacitor C that closes gate circuit ₂Negative pole link to each other capacitor C ₂Positive pole and capacitor C ₁Positive pole, current-limiting resistance R ₄An end be connected to password altogether and close the gate circuit controllable silicon SCR ₂Anode, R ₄Another termination positive source, password closes the controllable silicon SCR in the gate circuit ₂The control utmost point and positive source between connect operating key K and resistance R successively ₃, capacitor C ₁Negative pole be connected with the crypto-alarm circuit.

3, cipher anti theft protector according to claim 2 is characterized in that described crypto-alarm circuit, adopts by LED ₁, controllable silicon SCR ₁, resistance R ₁, diode D ₁, audible alarm unit forms.Controllable silicon SCR ₁Anode and password close C in the gate circuit ₁The LED that negative pole is connected with positive source ₁The current-limiting resistance R of series connection ₁, diode D ₁Negative pole and the R that connects of cryptochannel operating key K ₂Connect controllable silicon SCR altogether ₁, the control utmost point and R ₂Between 4 the operating key K that are connected in parallel, diode D ₁Anodal A termination audible alarm unit.

4, cipher anti theft protector according to claim 3 is characterized in that, between the chopped-off head in described crypto-alarm circuit, password pass gate circuit, the cryptochannel and the control utmost point of final stage controllable silicon SCR and the power cathode anti-interference resistance R is arranged ₉～R ₁₂

5, according to claim 1,4 described cipher anti theft protectors, it is characterized in that the opertaing device relay J ₁Be two groups of normally opened contact relays, it and transistor BG ₁, LED ₂, operating key K, resistance R ₁₃, R ₁₄, AC relay J ₂Form the control circuits of using more; Relay J ₁J _1-1The group contact connects triode BG ₁Emitter, connect the operating key K and the biasing resistance R of serial connection between base stage and the power cathode ₁₄, connect LED between emitter and the power cathode ₂With current-limiting resistance R ₁₃, BG ₁Collector C, emitter E and power cathode between connect controlled device, relay J ₁Another the group contact J _1-2Connect AC relay J ₂And controlled device.

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