CN2257051Y

CN2257051Y - Vibration type electronic cipher burglar alarm

Info

Publication number: CN2257051Y
Application number: CN95203058U
Authority: CN
Inventors: 阎文治; 高翔
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-20
Filing date: 1995-02-20
Publication date: 1997-06-25
Anticipated expiration: 2005-02-20

Abstract

The utility model relates to a vibration type electronic cipher burglar alarm. The utility model is composed of a casing, a cipher keyswitch and a control circuit. The cipher keyswitch is composed of a digital key, and a relevant key and a controllable silicon are assembled with each other to form an OR gate or an AND gate. A vibroswitch and the relevant key are connected between the positive electrode and the control electrode of the controllable silicon, so the conducting OR gate of the controllable silicon is formed. The vibroswitch is composed of a current-conducting spring, a current-conducting casing, a leading wire and a current-conducting contact point. The utility model has the advantages of simple structure, low cost, good security, high reliability and convenient use. The utility model can be used for a fixing object and can also be used for various moving objects.

Description

Oscillatory type electronic cipher burglar alarm

The utility model relates to a kind of anti-oscillatory type electronic cipher burglar alarm of usurping.

Burglar alarm commonly used at present mostly is Infrared intrusion detector, magnetic control alarm etc., and its complex structure costs an arm and a leg, and only can be used for the burglar alarm of some fixtures, can't be used for movability object (as various vehicles).

The purpose of this utility model is to provide a kind of oscillatory type electronic cipher burglar alarm at above-mentioned situation.

The purpose of this utility model is achieved like this, utilize controllable silicon, vibroswitch, audio ic and digital keys, each function key number number distributes by the mathematical law of permutation and combination, just forms password number oscillatory type electricity inequality in the cipher anti theft alarm.

The utility model is simple in structure, cost is low, and security performance is good, and the reliability height both can be used for fixed object, can be used for various mobile objects again, and was very easy to use.

Describe structure of the present utility model and working condition in detail below in conjunction with accompanying drawing.

Fig. 1 is a structure wiring diagram of the present utility model.

Fig. 2 is the vibroswitch structural drawing.

The utility model is by shell (box in), password key switch and control circuit thereof constitute, by shown in Figure 1, digital keys K1 to K12 forms the password key switch, each function key number number can distribute formation matrix pin key by the mathematical law of permutation and combination, button K11, K12 is connected between controllable silicon SCR 1 anode and the control utmost point, constitute the AND circuit that triggers controllable silicon SCR 1 conducting, button K1, K6, K8 is connected between the anode and negative electrode of controllable silicon SCR 1, constitute the AND circuit of turn-offing controllable silicon SCR 1, button K2, K3, K4, K5, K7, K9, K10 and vibroswitch K are connected in parallel between controllable silicon SCR 2 anodes and the control utmost point, constitute the OR circuit that triggers controllable silicon SCR 2 conductings, resistance R 1 one terminates at the controllable silicon SCR 1 of series connection, between the SCR2, the other end links to each other with power supply E behind LED, constitute the conducting indicating circuit, resistance R 2 one terminates on the lead between controllable silicon SCR 2 and the alarm integrated circuit (IC), the other end links to each other with power supply E, constitute report to the police power supply and controllable silicon SCR 2 turning circuits, be connected to alarm Y on the warning circuit IC.Warning circuit can be the acousto optic element device circuitry, it also can be the radio wave transmission circuit, two power ends of warning circuit in, one is connected except that the utmost point of control the utmost point with controllable silicon SCR 2, another is connected with power supply E, the power end of warning circuit should be corresponding with the polarity of power supply E in polarity, the power spring 3 of vibroswitch K is contained in the center of tubbiness external conductive casing 1, and conductive junction point 2 is arranged at power spring 3 tops, and power spring is perpendicular to floor mounted, when external force moves vibroswitch, spring vibration in the vibroswitch makes the conductive junction point 2 of its top touch tubbiness shell 1, and triggers the SCR2 conducting, leaded 4 on the spring 3, on the shell 1 leaded 5.The vibroswitch structure is seen shown in Figure 2.All above-mentioned components and parts and battery are installed in the shell (box in), and vibroswitch K is on the removable cover of box, and the matrix key is installed in (shell figure draws at the end) on the box wall.

Button K11, K12 are the password start keys that alarm is set, and the feature of start key is with the one group of keyswitch that is connected between controllable silicon SCR 1 anode and the control utmost point, forms the AND circuit that triggers the SCR1 conducting.This group switch number is generally 2-3, be mixed in during installation in the matrix key, when needing start, press K11 and K12, SCR1 is triggered after the conducting, LED is luminous, alarm enters waiting status, and when normally using, the releasing of waiting status must be pressed the setting code closing key that is mixed in the matrix key simultaneously, the connection of closing key wait to levy be with the series connection after pushbutton switch be connected between the anode and negative electrode of SCR1, form the AND circuit of turn-offing SCR1.The number of closing key is many more, and the probability of wrong button is high more, and the probability of alarm equipment alarm is also high more, and the number of general closing key is 2-5, and K1 shown in Figure 1, K6, K8 are closing key.

Because of K2, K3, K4, K5, K7, K9, K10 among Fig. 1 are the password figure key, the connection feature of key is with the one group of pushbutton switch that is connected in parallel between controllable silicon SCR 2 anodes and the control utmost point, form the OR circuit that triggers controllable silicon SCR 2 conductings, when the waiting status of alarm is removed in attempt, if the wrong key of any setting in the matrix key of having pressed, all can trigger the SCR2 conducting, warning circuit also sends alerting signal because of obtaining the power supply supply.The number of key is many more, and the probability of alarm equipment alarm is also high more.Generally getting 7 to 15 gets final product.If move protected object by force under the situation of not removing the alarm waiting status, then vibration is held 1 and is closed K and can connect because of the vibration in moving, and can trigger SCR2 conducting warning equally.

The effect of resistance R 1 is to make alarm anode current by SCR1 when waiting status keep electric current greater than it.So that SCR1 keeps conducting state when waiting status.Another effect of resistance R 1 is the current-limiting resistance as LED.The effect of resistance R 2 is that the anode current of SCR2 conducting when alarm disconnects is kept electric current greater than it, in case alarm SCR2 when reporting to the police intermittently turn-offs.

Embodiment of the present utility model selects for use warning integrated package or language ic chip as warning circuit, if the warning volume is less, can make the sound output size suitably suitably for IC increases the audio frequency number of stages of amplification.

During use, alarm is fixed on the object that will protect, push switch K11 and K12 see that LED is luminous can leave away.When the owner will move protected object, should remove the waiting status (being that password turn-offs SCR1) of alarm earlier.It is pointed out that after opening operating switch alarm promptly enters waiting status, and the opening and the releasing of waiting status of operating switch, must press and be mixed in startup password key and the lighter cryptographic key that matrix is set in strong.When the waiting status of alarm is removed in attempt, if mistake all can make alarm send alerting signals such as acousto-optic or radiowave by the key that is mixed in any setting in the matrix key.Also can make it to send alerting signal if under waiting status, move protected object by force.The termination of alerting signal also need correctly be pressed the shutdown cryptographic key.

The utility model can be used for the burglar alarm of any fixing valuable object of indoor and outdoor, also is applicable to burglar alarms such as object that various movability are big such as automobile, motorcycle, bicycle.

Claims

1, a kind of oscillatory type electronic cipher burglar alarm, be by shell, password key switch and control circuit thereof constitute, it is characterized in that digital keys K1 to K12 forms the password key switch, button K11, K12 is connected on controllable silicon SCR 1 anode and control interpolar, constitute the AND circuit that triggers controllable silicon SCR 1 conducting, button K1, K6, K8 is connected between the anode and negative electrode of controllable silicon SCR 1, constitute the AND circuit of turn-offing controllable silicon SCR 1, button K2, K3, K4, K5, K7, K9, K10 and vibroswitch K are connected in parallel between controllable silicon SCR 2 anodes and the control utmost point and constitute the OR circuit that triggers controllable silicon SCR 2 conductings, resistance R 1 one terminates at the controllable silicon SCR 1 of series connection, between the SCR2, end links to each other with power supply E behind LED in addition, constitute the conducting indicating circuit, resistance R 2 one terminates on the lead between controllable silicon SCR 2 and the warning integrated circuit (IC), the other end links to each other with power supply E, constitute report to the police power supply and controllable silicon SCR 2 turning circuits, be connected to alarm Y on the warning circuit IC.

2, oscillatory type electronic cipher burglar alarm according to claim 1, it is characterized in that said its structure of vibroswitch K is the center that power spring (3) is contained in tubbiness external conductive casing (1), conductive junction point (2) is arranged at power spring 3 tops, power spring is perpendicular to ground, leaded on it (4), leaded on the shell (5).