Sensor

A sensor in the lighting system is used to detect motion, the presence of a person, and/or to measure the brightness of daylight or artificial lighting. If a change is detected, the sensor transmits this information to the lighting management system, which then adjusts the lighting accordingly. Such an adjustment may involve simply turning a light on or off, or dimming the light source based on the detected conditions. A light sensor used to measure brightness is essentially an electronic component that converts light into an electronic signal using the photoelectric effect. The sensor is assigned a specific light intensity threshold; when it detects this threshold, the lighting is adjusted accordingly—for example, when twilight sets in outside. This type of sensor is typically used outdoors, such as in twilight sensors, but also indoors for constant light control. With such light sensors, a distinction is made between indoor “look-down” or “look-out” sensors and outdoor daylight sensors. In the case of motion or presence detectors, the sensor does not measure brightness but rather detects movement in the surrounding area. This works using passive infrared sensors (abbreviated as PIR) or high-frequency sensors (abbreviated as HF). These sensors are also primarily used outdoors, for example for entryway lighting, so that the light turns on immediately upon arriving home and you can find the keyhole without having to search for it. How long the light should stay on is controlled by a timer and can be set individually.