CN2726038Y

CN2726038Y - Wireless digital anti-theft alarm

Info

Publication number: CN2726038Y
Application number: CN 200420063482
Authority: CN
Inventors: 于德学
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-27
Filing date: 2004-09-27
Publication date: 2005-09-14
Anticipated expiration: 2014-09-27

Abstract

The utility model relates to a wireless digital anti-theft alarm applying the wireless digital communication technology. The far point wireless terminal (1) and the near point wireless terminal (2) of the wireless digital anti-theft alarm complete the signal connection through the wireless digital signal. The power input end of the near point wireless terminal (2) is connected with the output end of a light induced circuit (3) comprising a photosensitive resistor (Ra). The input end of the light induced circuit (3) is connected with the output end of an accumulator (4). The far point wireless terminal (1) is taken by users. The near point wireless terminal (2), the light induced circuit (3), and the accumulator (4) are arranged in the articles, such as a safe, which need the alarm protection. When the safe is opened, the photosensitive resistor (Ra) contacts with the light, and then resistance value decreases at once. The near point wireless terminal (2) emits a wireless digital signal to the far point wireless terminal (1), and the carrier of the far point wireless terminal (1) receives the alarming. Because the accumulator (4) is arranged in the safe, the circuit can not be cut off by larceners. As long as the safe is not opened, the light induced circuit (3) can not alarm. The utility model has the advantages of simple structure, reliable working, and easy popularization and application.

Description

The wireless digital burglar alarm

Technical field:

The utility model relates to a kind of burglar alarm of employing wireless digital communication technology.

Background technology:

The employed warning system of traditional safety cabinet, generally all use the infrared alarming technology, and what use is wired AC power, and this exists following disadvantage: in case 1, the warning device external world of wired form operates a switch or cut off the electricity supply, and just can't reach the purpose of warning.2, infrared warning device is to report to the police by the heat that human body gives out, much less have the safety cabinet people of infrared alarming close, be exactly a mouse from the side through all reporting to the police, thereby some unit or individual are in order to reduce false alarm, often close warning device, do not have the effect of warning.3, had data proof infrared alarming warning device to be lost efficacy with heat absorption materials such as natural ices at present, therefore this warning device work is unreliable.

The utility model content:

In order to overcome the insecure defective of existing burglar alarm work, provide a kind of burglar alarm of reliable operation.The utility model is realized by following proposal: a kind of wireless digital burglar alarm, it comprises far point wireless terminal 1, near point wireless terminal 2, includes light sensing circuit 3 and the accumulator 4 of photoresistance Ra, far point wireless terminal 1 and near point wireless terminal 2 are finished signal by wireless digital signal and are connected, the power input of near point wireless terminal 2 is connected on the output terminal of the light sensing circuit 3 that includes photoresistance Ra, and the input end that includes the light sensing circuit 3 of photoresistance Ra connects the output terminal of accumulator 4.During the utility model work; far point wireless terminal 1 is carried by the user; near point wireless terminal 2; the light sensing circuit 3 and the accumulator 4 that include photoresistance Ra are arranged on the article inside such as safety cabinet that need alarm and protection; after safety cabinet etc. is opened; photoresistance Ra contact light resistance declines to a great extent immediately; thereby make light sensing circuit 3 conductings that include photoresistance Ra suitable and a switch; accumulator 4 gives the near point wireless terminal 2 power supplies; near point wireless terminal 2 emission wireless digital signals are given far point wireless terminal 1, and the carrier of far point wireless terminal 1 just receives the report for police service.Because accumulator 4 is arranged on safety cabinet inside, can stolen person not cut off circuit, therefore work is very reliable.Only otherwise open safety cabinet, the light sensing circuit 3 that includes photoresistance Ra just can not reported to the police, and therefore the false alarm situation can not occur.As long as the utility model is opened safety cabinet and is just reported to the police to the people who holds far point wireless terminal 1, can prevent effectively that therefore the situation of defalcating from taking place, the utlity model has simple in structure, reliable operation, be suitable for the advantage of promotion and implementation.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment one, and Fig. 2 is the electrical block diagram of embodiment two, and Fig. 3 is the structural representation of embodiment three.

Embodiment:

Embodiment one: specify present embodiment below in conjunction with Fig. 1.It comprises far point wireless terminal 1, near point wireless terminal 2, includes light sensing circuit 3 and the accumulator 4 of photoresistance Ra, far point wireless terminal 1 and near point wireless terminal 2 are finished signal by wireless digital signal and are connected, the power input of near point wireless terminal 2 is connected on the output terminal of the light sensing circuit 3 that includes photoresistance Ra, and the input end that includes the light sensing circuit 3 of photoresistance Ra connects the output terminal of accumulator 4.Described far point wireless terminal 1 and near point wireless terminal 2 all are mobile phones, pass through the wireless mobile communication network communication between them.

Embodiment two: specify present embodiment below in conjunction with Fig. 2.The difference of present embodiment and embodiment one is: the described light sensing circuit 3 that includes photoresistance Ra is by near switch U1, permanent magnet Y, two relays (JD1 and JD2), three-terminal regulator block U2, two integrated operational amplifiers (U3A and U3B), two triodes (Q1 and Q2), LED, five diode (D1, D2, D3, D4, D5), six resistance (R1, R2, R3, R4, R5, R6A), two electric capacity (C2, C4,), three rheostat (RW1, RW2, RW3) and photoresistance Ra form, the positive pole of accumulator 4 connects the pin 1 near switch U1, the negative pole of diode D1, one end of resistance R 2, the end of the coil J1 of relay J D1 and the moving contact K1 of relay J D1, pin 2 ground connection near switch U1, pin 3 near switch U1 is connected on the base stage of triode Q1 by resistance R 1, the other end of resistance R 2 connects the base stage of triode Q1, the collector of triode Q1 is by resistance R 3 ground connection, the emitter of triode Q1 connects the other end of the coil J1 of the positive pole of diode D1 and relay J D1, the positive pole of the stationary contact K2 running fire optical diode LED of relay J D1, one end of capacitor C 2, the pin 1 of three-terminal regulator block U2, the emitter of triode Q2, the end of resistance R 6A, the positive power source terminal of integrated operational amplifier U3B, the end of rheostat RW3, the end of rheostat RW2, the end of rheostat RW1 and the positive power source terminal of integrated operational amplifier U3A, the negative pole of LED is by resistance R 4 ground connection, the other end ground connection of capacitor C 2, pin 2 ground connection of three-terminal regulator block U2, the pin 3 of three-terminal regulator block U2 connects an end of capacitor C 4 and the positive pole of diode D2, the other end ground connection of capacitor C 4, the negative pole of diode D2 connects the moving contact K1 of relay J D2, the end of the coil J2 of relay J D2 connects the collector of triode Q2 and the negative pole of diode D5, the positive pole of diode D5 connects the other end and the ground connection of the coil J2 of relay J D2, the base stage of triode Q2 connects the other end of resistance R 6A and an end of resistance R 5, the other end of resistance R 5 connects the positive pole of diode D4 and the positive pole of diode D3, the negative pole of diode D4 connects the output terminal of integrated operational amplifier U3B, the inverting input of integrated operational amplifier U3B connects the slider of rheostat RW3, the in-phase input end of integrated operational amplifier U3B connects the other end of rheostat RW2, the end of the in-phase input end of integrated operational amplifier U3A and photoresistance Ra, the inverting input of integrated operational amplifier U3A connects the slider of rheostat RW1, the output terminal of integrated operational amplifier U3A connects the negative pole of diode D3, the negative power end of integrated operational amplifier U3A connects the other end of rheostat RW1, the other end of photoresistance Ra, the negative power end of the other end of rheostat RW3 and integrated operational amplifier U3A and ground connection, the stationary contact K2 of relay J D2 connects the input end of near point wireless terminal 2, and the position of permanent magnet Y is with corresponding near the position of switch U1.Present embodiment select Hall element for use near switch U1, permanent magnet Y is arranged on the door of safety cabinet, Hall element is arranged in the safety cabinet and the corresponding position of permanent magnet Y, the door one of safety cabinet is opened, the distance of Hall element and permanent magnet widens, the pin 2 of Hall element and pin 3 are with regard to conducting, and then triode Q1 conducting, relay J D1 work is connected the moving contact K1 of relay J D1 and static contact K2, be added on the relay J D2 after the voltage process voltage stabilizing of accumulator 4 and the filtering, after safety cabinet is opened, light enters in the safety cabinet, the resistance of photoresistance Ra is declined to a great extent, make the level of the in-phase input end that is added in integrated operational amplifier be lower than the level of its inverting input, thereby diode D3 or D4 conducting, make triode Q2 conducting, relay J D2 work, the moving contact K1 of JD2 is communicated with stationary contact K2, thereby near point wireless terminal 2, mobile phone as the near point wireless terminal is set to the mobile phone emission ringdown that must electricly promptly give as the far point wireless terminal, thereby finishes warning.Three-terminal regulator block is selected the chip of 7805 models for use.

Embodiment three: specify present embodiment below in conjunction with Fig. 3.The difference of present embodiment and embodiment two is: it also comprises unlimited carrying case 6 suitable for reading, the inwall of carrying case 6 is provided with the shoulder 6-1 of annular, shoulder 6-1 upper surface is provided with the gasket seal 7 of annular, near point wireless terminal 2, the light sensing circuit 3 that includes photoresistance Ra and accumulator 4 all are arranged in carrying case 6 cavitys below the gasket seal 7, include to be arranged on shoulder 6-1 place and corresponding with the permanent magnet Y of gasket seal 7 tops near switch U1 in the light sensing circuit 3 of photoresistance Ra.The carrying case of present embodiment is fixed on ground or other large-sized object, and the article that need protection are placed on the surface of shoulder 6-1, and middle pad is gone up gasket seal 7, and the lower end of carrying case 6 just is sealed.If someone picks up article 8, be fixed on the article 8 permanent magnet Y with widen near the distance of switch U1, light enters the lower end of carrying case 6, near point wireless terminal 2 is just to 1 warning of far point wireless terminal.Present embodiment is particularly useful for the protection to notebook computer, as long as pick up notebook computer, present embodiment is just reported to the police.

Claims

1. wireless digital burglar alarm, it is characterized in that: it comprises far point wireless terminal (1), near point wireless terminal (2), includes the light sensing circuit (3) and the accumulator (4) of photoresistance (Ra), far point wireless terminal (1) and near point wireless terminal (2) are finished signal by wireless digital signal and are connected, the power input of near point wireless terminal (2) is connected on the output terminal of the light sensing circuit (3) that includes photoresistance (Ra), and the input end that includes the light sensing circuit (3) of photoresistance (Ra) connects the output terminal of accumulator (4).

2, wireless digital burglar alarm according to claim 1, it is characterized in that the described light sensing circuit (3) that includes photoresistance (Ra) is by near switch (U) 1), permanent magnet (Y), two relays (JD1 and JD2), three-terminal regulator block (U2), two integrated operational amplifiers (U3A and U3B), two triodes (Q1 and Q2), light emitting diode (LED), five diode (D1, D2, D3, D4, D5), six resistance (R1, R2, R3, R4, R5, R6A), two electric capacity (C2, C4), three rheostat (RW1, RW2, RW3) and photoresistance (Ra) form, the positive pole of accumulator (4) connects the pin 1 near switch (U1), the negative pole of diode (D1), one end of resistance (R2), one end of the coil (J1) of relay (JD1) and the moving contact (K1) of relay (JD1), pin 2 ground connection near switch (U1), the other end of resistance (R2) connects the base stage of triode (Q1), pin 3 near switch (U1) is connected on the base stage of triode (Q1) by resistance (R1), the collector of triode (Q1) is by resistance (R3) ground connection, the emitter of triode (Q1) connects the other end of the coil (J1) of the positive pole of diode (D1) and relay (JD1), the positive pole of stationary contact (K2) the running fire optical diode (LED) of relay (JD1), one end of electric capacity (C2), the pin 1 of three-terminal regulator block (U2), the emitter of triode (Q2), resistance R 6A) a end, the positive power source terminal of integrated operational amplifier (U3B), one end of rheostat (RW3), one end of rheostat (RW2), the positive power source terminal of one end of rheostat (RW1) and integrated operational amplifier (U3A), the negative pole of light emitting diode (LED) is by resistance (R4) ground connection, the other end ground connection of electric capacity (C2), pin 2 ground connection of three-terminal regulator block (U2), the pin 3 of three-terminal regulator block (U2) connects an end of electric capacity (C4) and the positive pole of diode (D2), the other end ground connection of electric capacity (C4), the negative pole of diode (D2) connects the moving contact (K1) of relay (JD2), one end of the coil (J2) of relay (JD2) connects the collector of triode (Q2) and the negative pole of diode (D5), the positive pole of diode (D5) connects the other end and the ground connection of the coil (J2) of relay (JD2), the base stage of triode (Q2) connects the other end of resistance (R6A) and an end of resistance (R5), the other end of resistance (R5) connects the positive pole of diode (D4) and the positive pole of diode (D3), the negative pole of diode (D4) connects the output terminal of integrated operational amplifier (U3B), the inverting input of integrated operational amplifier (U3B) connects the slider of rheostat (RW3), the in-phase input end of integrated operational amplifier (U3B) connects the other end of rheostat (RW2), one end of the in-phase input end of integrated operational amplifier (U3A) and photoresistance (Ra), the inverting input of integrated operational amplifier (U3A) connects the slider of rheostat (RW1), the output terminal of integrated operational amplifier (U3A) connects the negative pole of diode (D3), the negative power end of integrated operational amplifier (U3A) connects the other end of rheostat (RW1), the other end of photoresistance (Ra), the negative power end and the ground connection of the other end of rheostat (RW3) and integrated operational amplifier (U3A), the stationary contact (K2) of relay (JD2) connects the input end of near point wireless terminal (2), and the position of permanent magnet (Y) is with corresponding near the position of switch (U1).

3, wireless digital burglar alarm according to claim 2, it is characterized in that it also comprises unlimited carrying case suitable for reading (6), the inwall of carrying case (6) is provided with the shoulder (6-1) of annular, shoulder (6-1) upper surface is provided with the gasket seal (7) of annular, near point wireless terminal (2), include the light sensing circuit (3) of photoresistance (Ra) and accumulator (4) and all be arranged in carrying case (6) cavity below the gasket seal (7), include and be arranged on that shoulder (6-1) is located and corresponding near switch (U1) in the light sensing circuit (3) of photoresistance (Ra) with the permanent magnet (Y) of gasket seal (7) top.