Passive infrared movement sensor has infrared sensors with bounding horizontal detection ranges giving larger total detection range, electronic controller for individual sensor control

摘要

The sensor has several, especially four, infrared sensors (1-4), whose horizontal detection ranges bound on each other so that a larger total detection range is achieved and an electronic controller designed (8) so that each individual infrared sensor is program-controlled or switched to the active or inactive state according to a delivered drive signal.