CN2112185U

CN2112185U - Infrared alarm

Info

Publication number: CN2112185U
Application number: CN 92203721
Authority: CN
Inventors: 韩津生; 王东升; 陈有利
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-09
Filing date: 1992-03-09
Publication date: 1992-08-05

Abstract

The utility model relates to an infrared alarm for houses and living rooms, which comprises a casing, an emitter arranged in the casing, a set of receivers which are connected in parallel with a controller, an alarm bell, and an alarm light. The utility model is characterized in that when a robber invades into warning area or breaks the alarm device, the infrared alarm can alarm reliably. The utility model has the advantages of simple structure, simple circuit, low cost, easy fabrication, and high reliability and safety.

Description

Infrared alarm

The utility model relates to a kind of infrared warning device that is used for house, room.

Existing various burglar alarm, generally all be to force open the door the robber just to bring into play the warning effect when entering the room, touching by the key target, house-owner that causing is a cup too low prepares or round fierce the misfortune, or suffer homicide, or make the robber rob thing and escape, its security and reliability are difficult to make the user satisfied.

The purpose of this utility model provides a kind of novel antitheft infrared warning device, with it several hidden warning line is set around the target of setting up defences, with the thoroughfare that monitors that a plurality of robbers may invade, the robber is not found during contact target as yet entering the security area, and carries out sound and light alarm simultaneously.

Group of receivers that the utility model mainly is connected in parallel by shell 1, the transmitter that places shell 1, controller, with controller and alarm bell, warning lamp are formed, be characterized in that said transmitter and one group of infrarede emitting diode are connected in parallel, and the number of infrarede emitting diode is identical with the number of receiver.

Advantages such as that this antitheft acoustic-optic alarm has compared with similar products is simple in structure, circuit is simple and direct, cost is low, easy to manufacture, reliability and high safety, it all can carry out sound and light alarm reliably under following three kinds of situations: 1. when the robber invades warning line; 2. when any part of device is moved; 3. when the circuit of device is cut off.In other words, it can both reliably be reported to the police when the robber invades security area or breaking plant.

Narrate embodiment of the present utility model below in conjunction with accompanying drawing.

Fig. 1: structured flowchart of the present utility model.

Fig. 2: system chart of the present utility model.

Fig. 3: transmitter circuit figure of the present utility model.

Fig. 4: acceptor circuit figure of the present utility model.

Fig. 5: controller circuitry figure of the present utility model.

Fig. 6: power circuit diagram of the present utility model.

As shown in Figure 1 and Figure 2, the utility model adopts the 220V AC power, make warning line with infrared beam, concrete condition according to the target region of setting up defences, can be respectively or the thoroughfare that may invade door and window outside house courtyard wall, the room etc. simultaneously monitor, as long as any infrared beam as warning line is interdicted, the alarm bell on the device, warning lamp trigger warning immediately.When any lead-in wire was cut off outside transmitter of the present utility model or the receiver, it also can trigger warning immediately, thereby had further improved its safe reliability.

The utility model important feature structurally is the place that many warning lines are set at need, only use a transmitter, can mate with a plurality of receivers, carry out setting up defences of warning line, specific practice is to draw the initiating terminal of one group of infraluminescence pipe as each warning line by this transmitter, and the receiver that matches being set in the other end correspondence of each warning line, the infrared beam that each infraluminescence pipe sends is received by the receiver of correspondence, forms the state of alert.Transmitter all links to each other with controller with each receiver, and is provided+the 5V power supply by controller.When any warning line was interdicted, the signal of being exported by receiver passed to controller, and then made the actuating of relay in the controller, and triggered alarm bell, warning lamp warning simultaneously.Infrared beam of the present utility model adopts short pulse beam of light, thereby has increased reliability, has reduced power consumption.This device can be provided with 3 meters long warning lines respectively, if receiver adds lens, the warning distance can reach more than 10 meters.

That Fig. 1, Fig. 2 provide is the embodiment that the utility model three road warning lines are set up defences.When setting up defences the zone just often, three road pilot lamp do not work, and when the key feelings appearred in certain road, the pilot lamp corresponding with this road was bright, carried out sound and light alarm simultaneously.This bright road pilot lamp no longer extinguishes, and resets the state of alert until this road, and this is concerning nobody tame institute of room, and owner can judge robber's intrusion route according to the indication of pilot lamp, helps the police to solve a case.

Fig. 3, Fig. 4, Fig. 5, Fig. 6 have provided the schematic diagram of each circuit of the utility model, below will set forth one by one:

Fig. 3 is transmitter circuit figure, wherein, and IC ₁: A, IC ₁: B, IC ₁: C and R ₁, C ₆Form oscillatory circuit, oscillation frequency f ₁=40KH _ZC ₁: D, IC ₁: E, IC ₁: F is together in parallel, and has improved driving force.R ₂Be isolation resistance, BG ₁, BG ₂, BG ₃For luminous (infrared) drives triode, drive infraluminescence (two utmost points) pipe TR respectively ₁, TR ₂, TR ₃, R ₃Be resistance flowing resistance ,+5V power supply one is connected infraluminescence pipe TR ₁, TR ₂, TR ₃Promptly send 40KH _ZOf short duration infrared pulse light.

Fig. 4 is acceptor circuit figure, and wherein KA2184 is infrared reception prime amplifier integrated package, and it is a gated amplifier, centre frequency f ₂=40KH _Z, C ₁, R ₂Determining the enlargement factor of pre-amplifier; C ₂For detecting electric capacity, R ₅Make the centre frequency f of gated amplifier ₂=40KH _ZC ₃Be shaping capacitance; R ₆Be output load resistance, C ₅Be power filtering capacitor.During work, infrared photodiode PH302 constantly receives infrared signal, and converts thereof into voltage signal and send into KA2184 and carry out gating and amplify (f ₂=40KH _Z), result amplified is exported by the 7th pin, when no infrared light, the 7th pin output high level, when infrared light was detected by PH302, the 7th pin was a low level, the 7th pin output high level when promptly being equivalent to infrared light and being covered, and during the normal armed state, the output of the 7th pin keeps low level.

Fig. 5 is a power circuit diagram, and it takes from the 220V alternating current, and provides+the 5V direct supply to transmitter, receiver respectively, to controller provide+12V and+the 5V direct supply.When package unit wouldn't use, can disconnect the complete machine power supply by SW.

Fig. 6 is controller circuitry, wherein R ₉, R ₁₀, R ₁₁, R ₁₂Be isolation resistance, R ₁₄, R ₁₃Be input resistance, LED ₁, LED ₂, LED ₃For with TR ₁, TR ₂, TR ₃Corresponding luminotron, D ₁, D ₂, D ₃Be isolating diode, BG ₄For driving triode, J ₁Be relay, the switching that its guide sound, light are reported to the police.The principle of work of controller divides following three kinds of situations to set forth: (a): under the normal condition, and input end S ₁, S ₂, S ₃Input low level, LED ₁, LED ₂, LED ₃All bright, show that three warning lines are all normal, at this moment, BG ₄End relay J ₁Not adhesive, sound and light alarm does not take place; (b): when the second road warning line is interdicted, S then ₂Input high level, LED ₂Go out BG ₄Conducting, relay J ₁Adhesive, sound, light are reported to the police and are taken place; (c): when certain receiver lead-in wire is cut off (such as second receiver), then S ₂Unsettled, BG ₄Conducting, sound, light are reported to the police and are taken place.

The number that is provided with of the utility model warning line can be definite according to actual conditions, and be not limited to present embodiment said three tunnel.〉

Claims

1, a kind of antitheft infrared warning device that is used for house, room, group of receivers that it is connected in parallel by shell 1, the transmitter that places shell 1, controller, with controller and alarm bell, warning lamp are formed, said transmitter and one group of light emitting diode of being characterised in that of the present utility model is connected in parallel, and the number of light emitting diode is identical with the number of receiver.