CN203232518U - An indoor antitheft acousto-optic alarm - Google Patents

Abstract

The utility model discloses an indoor antitheft acousto-optic alarm and belongs to the technical field of single chip microcomputer application. The indoor antitheft acousto-optic alarm comprises a detecting circuit and an alarm circuit and is characterized in that a single chip microcomputer controller immediately starts a local alarm function and a remote alarm function when detecting an indoor dangerous case signal. By using the above technical scheme, a function of antitheft alarm can be effectively achieved. The acousto-optic alarm has advantages and beneficial effects of convenient and practical performance and low cost.

Description

A kind of antitheft audible-visual annunciator

Technical field

The utility model discloses a kind of indoor antitheft audible-visual annunciator that is applied to, belong to the single-chip microcomputer applied technical field.

Background technology

Along with the development of society, rural area urbanization and worker's flowability gradually increases, and it is more complicated that the condition of public security becomes, and therefore the elementary cell safety precaution problem as society just seems particularly important.The protection of traditional mechanical type (anti-theft net, Anti-theft door and window) household exposes some tangible problems in real life uses, as: influence the clean and tidy of dwelling house outward appearance U.S. and the appearance of the city; Influence the fire rescue passage; The condition of crossing of providing convenience to the offender; Of long duration danger of falling object from high altitude etc. can appear.Intelligent and safe burglar alarm system as a new generation just arises at the historic moment, and is subjected to people's extensive attention and application day by day.And the further demand for development of intelligent alarm system is digitizing, wireless penetration, integrated.Guard against theft and alarm system will possess following some requirement:

1) more various function: as the detector Frequency Adjustable, anti-ly block, blowout prevention lid, tamper-proof etc.;

2) more reliable and more stable: can anti-RFI/EMI(electromagnetic interference (EMI)/Radio frequency interference (RFI) as detector), anti-thunder and lightning etc., to adapt to weather extremes;

3) more exquisite, small and exquisite outward appearance: to meet fashion indoor decoration requirement attractive in appearance, it is harmonious that both can be arranged in pairs or groups;

4) more intelligentized design: convenient if withdraw a garrison, the operation interface of hommization be arranged;

5) more powerful network savvy and extendability more easily, thus reach more intelligentized control.

Summary of the invention

The utility model provides the multifunctional household burglar alarm of a kind of digitizing, intellectuality and wireless penetration to the deficiency that the above-mentioned background technology exists.

The utility model adopts following technical scheme for achieving the above object:

Guard against theft and alarm system of the present utility model comprises test section and warning part, comprise power circuit,

Acoustic control sensor circuit, photoresistance module, singlechip controller, local sound and light alarm module, GSM SMS alarm circuit and image detection circuit; The output of described power circuit, acoustic control sensor circuit, photoresistance module and image detection circuit links to each other with singlechip controller respectively, and described singlechip controller output terminal links to each other with local sound and light alarm module with GSM SMS alarm circuit.

Singlechip controller adopts single chip computer AT 89S52 to realize acoustic control sensor, photoresistance and the scanning of image detection circuit cycles, and control alerting signal treatment circuit, making corresponding state handles, if alerting signal is arranged, can send alerting signal immediately, control local warning circuit and report to the police and remote alarming device, thereby can accurately arrive the spot, solve dangerous situation, even the robber escapes, the appearance feature that alarm has recorded the offender simultaneously is convenient to public security and is partly tracked down merit.

The utility model adopts technique scheme, has following beneficial effect:

Acoustic control sensor, photoresistance and image detection are combined, utilize three detectors to detect dangerous situation and record dangerous situation, this will guarantee the reliability of alerting signal more.

Description of drawings

Fig. 1 is the overall design block diagram of burglar alarm.

Embodiment

Be elaborated below in conjunction with the technical scheme of accompanying drawing to invention:

As shown in Figure 1, burglar alarm of the present utility model comprises power circuit, acoustic control sensor circuit, photoresistance module, singlechip controller, local sound and light alarm module, GSM SMS alarm circuit and image detection circuit.

The course of work of the present utility model is as follows:

The utility model is one and is applied to indoor audible-visual annunciator, check dangerous situation whether to exist by the acoustic control testing circuit, if dangerous situation exists the recycling photosensitive detection circuit to judge the particular location of dangerous situation, the image detection circuit can record offender's facial feature simultaneously, carry out this locality by hummer and charactron more at last and report to the police, utilize GSM SMS alarm device to carry out long distance wireless and report to the police.

Wherein the acoustic control sensor is namely made sensor with acoustic pickup, be used for the sound that the detecting intrusion person walks about or the crime activity is sent in taking precautions against the zone, and this sound is converted to electric signal sends into controller and convert sound equipment to and monitor for the security personnel or recording, or send into warning circuit, trigger warning device when the sound intensity acquires a certain degree at the scene.Adopt photoresistance to carry out light-operated detection, when illumination was strong, the photoresistance resistance was little, output low level, thus light signal is converted into electric signal, realize intelligent alarm by Single-chip Controlling.

Because the voice-control alarm system is vulnerable to the influence of external environment, so add photoresistance and image detection in the utility model, combine by photoresistance, acoustic control sensor and image detection and to realize that the combined type multiparameter detects, the local warning of realization and remote alarms combine and constitute a high performance warning system, the possibility that minimizing is failed to report and the possibility of wrong report.This systemic-function is complete, can the thievery that average family occurs be carried out monitoring before the calamity, in time sends alerting signal, avoids user's lives and properties to incur loss.In addition, this system adopts modular mentality of designing, highly sensitive and good concealment, thus make that whole system function is more perfect, it is more reliable to report to the police.The system hardware circuit is simple, installation is easy, easy to operate, and has the low advantage of cost, is fit to all kinds of crowds and uses.

Claims (2)

1. antitheft audible-visual annunciator comprises test section and warning part, it is characterized in that: comprise power circuit,

Acoustic control sensor circuit, photoresistance module, singlechip controller, local sound and light alarm module, GSM SMS alarm circuit and image detection circuit; The output of described power circuit, acoustic control sensor circuit, photoresistance module and image detection circuit links to each other with singlechip controller respectively, and described singlechip controller output terminal links to each other with local sound and light alarm module with GSM SMS alarm circuit.

2. antitheft audible-visual annunciator according to claim 1 is characterized in that: singlechip controller employing AT89S52 single-chip microcomputer.

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