What is a Human Sensor?

A human presence sensor is a device designed to detect the presence of a human being, typically using infrared technology to detect body heat or movement. This sensor can determine whether a person is nearby and automatically control various systems based on this information. The most common type of human presence sensor is the passive infrared sensor (PIR), which detects infrared radiation (heat) emitted by the human body. These sensors are commonly used for automatic lighting control, security systems, and energy efficiency applications. Additionally, the ability to detect human presence is utilized in interactive displays, automatic doors, and home automation systems, providing convenience and energy-saving solutions.

Application of Human Sensor

１．Automatic Lighting System: By using human presence sensors, a lighting system can automatically turn on when a person enters a room and turn off when the person leaves. This contributes to energy savings.
２．Security Systems: Human presence sensors are used in security systems to trigger alarms when an intruder is detected. By detecting the presence of unauthorized individuals, security can be significantly improved.
３．Automatic Doors: Automatic doors commonly used in supermarkets and shopping malls rely on human presence sensors to detect when someone approaches, opening and closing the doors automatically.
４．Home Automation: In home automation systems, human presence sensors are used to detect if someone is in the room and adjust lighting, air conditioning, and music automatically to enhance comfort and energy efficiency.

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