Continuous alarm device based on infrared induction technology

Abstract

The invention discloses a continuous alarm device based on the infrared induction technology. The alarm device comprises a power source circuit, an infrared induction circuit, a self-locking control circuit and an oscillation alarm circuit, wherein the infrared induction circuit comprises an infrared induction chip IC1, a triode V1, a resistor R2 and a capacitor C2, the self-locking control circuit comprises an optical coupler IC3, a triode V2 and a relay K, and the oscillation alarm circuit comprises a triode V3, a triode V4 and a horn B. The alarm device is advantaged in that the infrared induction chip is utilized as a detection component, in combination with the optical coupler and the relay, the anti-break type self-locking alarm function is realized, entry into a self-locking state can be realized once opening triggering, continuous alarm can be realized through timely triggering source damage or triggering condition resetting, moreover, the anti-false triggering function is added in the triggering mechanism, the false triggering probability is reduced, and various functions, the high intelligent degree and convenient use are realized.

Description

Technical field [0001] The invention relates to the field of security technology, in particular to a continuous alarm based on infrared induction technology. Background technique [0002] With the continuous improvement of living standards, people pay more and more attention to family safety protection, especially at night when the owner is asleep, thieves sneak into the home to steal valuables. Therefore, installing an anti-theft alarm at home is a very effective way to prevent theft. However, there are not many alarms used in ordinary households on the market, and a few of them also have defects such as insensitive response, high false alarm rate, and poor anti-interference. The alarms being turned on not only affect the life of the alarm, but also consume high energy. , Increase the cost of use, the produced alarm is large in size, complex in structure, and poor in applicability. At the same time, this type of alarm will only alarm when triggered. Once the trigger source is lo...

AI Technical Summary

Problems solved by technology

However, there are not many alarms used in ordinary households on the market, and a few of them also have defects such as insensitivity, high false alarm rate, and poor anti-interference. The alarm is always on, which not only affects the life of the alarm, but also consumes a lot of energy. , increasing the cost of use, the alarm produced is large in size, complex in structure, and poor in applicability. At the same time, this type of alarm will only alarm when it is triggered. Once the trigger source is lost, the alarm function will be lost. Many thieves use this defect to destroy trigger source, thereby preventing the triggering of the siren

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