Infrared double detector in the alarm accessory

A set of intelligent burglar alarms is usually composed of various front-end detectors and receiving hosts. The current-end detector detects the intruder's intrusion behavior and sends a signal to the alarm system to receive the host. A set of intelligent burglar alarms is usually composed of various front-end detectors and receiving hosts. The current-end detector detects the intruder's intrusion behavior and sends a signal to the alarm system to receive the host. There are many places to protect against intrusions, which can be some points, lines, faces, or entire space. The most commonly used ones are infrared detectors. There are also many types of infrared detectors, which are different depending on the site requirements or the different infrared detectors used in the field environment. We often hear an infrared double detector, what is an infrared double detector?
Infrared dual detectors are sometimes referred to as dual-tech alarm detectors. As the name implies, two detection techniques are combined to trigger an alarm, that is, an alarm is issued only when the two detectors detect the target simultaneously or sequentially for a short period of time. Signal, this is the infrared double detector that we often say. The common infrared double detector alarm has microwave and passive infrared double detector, as well as ultrasonic and passive infrared double detector, from the actual credibility. In view of the fact, the microwave and passive infrared dual detectors have better performance, and the false alarm rate is 421 times that of the single technology detector and 270 times that of other dual technology detectors. Therefore, it is widely used in various engineering projects. in.

It should be noted that in some special applications, different detection technology infrared alarm detectors are needed.

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