Occupancy Sensor Working Principle

This post looks at how they work.

Occupancy sensor working principle.

An occupancy sensor also known as a motion sensor can detect the presence of occupants in a room. They are small inexpensive low power easy to use and don t wear out. This sensor may also activate the lights. But human nature is what.

When someone enters the room the sensor detects motion and the sensor s switch is closed turning on the lights. The sensors use infrared ultrasonic microwave or other technology the term encompasses devices as different as pir sensors hotel room keycard locks and smart meters occupancy sensors are typically used to save energy. An occupancy sensor is an indoor motion detecting device used to detect the presence of a person to automatically control lights or temperature or ventilation systems. If no motion is detected after a certain amount of time lights turn off.

Passive infrared occupancy vacancy sensor dual circuit switch provides flexible sensing control from a single switch to two independent circuits 6a per circuit. Occupancy sensor and microwave detector. Pir sensors detect general movement but do not give information on who or what moved. The connection between occupancy sensors occupancy analytics and smart buildings smart building technology is driven by the demand for more sustainable building management practices energy efficiency goals and the necessity to create dynamic responsive and optimised environments for occupants.

The field of view can usually be adjusted as can the amount. They detect motion in the room and control lighting automatically. Occupancy sensors can replace light switches or can be mounted in the ceiling. A passive infrared sensor pir sensor is an electronic sensor that measures infrared ir light radiating from objects in its field of view.

It s ideal for bi level switching applications such as independently controlled fluorescents in a classroom or restroom fan lights. If human beings were faultless at turning off lights these sensors would be less valuable. They are most often used in pir based motion detectors pir sensors are commonly used in security alarms and automatic lighting applications. When the person leaves the light shuts itself off.

When someone enters a room the occupancy sensor automatically turns on the light. What s an occupancy sensor and how does it work. This guide will show you how they work how to use them and give you some project examples. Occupancy sensors are one kind of devices used for detecting whenever space is empty then it is automatically deactivated the light so that the energy can be conserved.

This is largely because they can be extremely cost effective tools for reducing energy use and costs.