läsnäoloanturityyppejä
läsnäoloanturityyppejä refers to different types of presence sensors, which are devices designed to detect the presence or absence of a person or object within a defined area. These sensors are crucial components in various automation systems, security applications, and energy-saving solutions.
One common type is the passive infrared (PIR) sensor. PIR sensors detect infrared radiation emitted by warm
Ultrasonic presence sensors emit high-frequency sound waves and measure the time it takes for these waves to
Microwave presence sensors use Doppler radar to detect movement. They emit microwave signals and analyze the
Capacitive presence sensors detect changes in capacitance. They work by creating an electric field. When a
Finally, some advanced systems utilize a combination of sensor technologies, known as hybrid presence sensors, to