Passive infrared range finding proximity detector

摘要

Apparatus and methods for a passive range finding proximity detector include a sensor element configured to detect infrared radiation emitted by objects within a detection area. The sensor is configured to detect the temperature, relative size, relative distance, speed or direction of movement of an object from the sensor. The sensor is configured to set parameters for a controlled object based upon the detected size, temperature and/or proximity, speed or direction of an object in relation to one or more size thresholds, temperature thresholds, and/or proximity, speed or direction thresholds.

主权项

1. A passive proximity detecting device for detecting humans within a detection area and controlling a controlled device, comprising:
a sensor comprising a pixel configured to detect infrared radiation emitted by an object in a predetermined temperature range within said detection area, and in response to detecting said object generate a detection signal having a signal level proportional to said infrared radiation emitted by said object received by said sensor; and a processor in communication with said sensor, said processor configured to receive said detection signal, and to derive an object distance using, at least in part, a signal level of said detection signal.