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普通的来人检测器大多使用对于人体热量发生发应的红外传感器。本文介绍一种检测来人的简单的方法,可以直接使用背景光,并且能够检测到光线照度的变化。
Most of the normal come-on detectors use infrared sensors that respond to the heat generated by the body. This article describes a simple way to detect people, can use the background light directly, and can detect changes in light illumination.