METHOD AND SYSTEM TO DETECT HUMANS OR ANIMALS WITHIN CONFINED SPACES WITH A LOW RATE OF FALSE ALARMS

摘要

The present disclosure describes a detection system and methods for detecting a presence of a person or animal within a confined space with a low false alarm rale. The detection system may include a chemical detector to determine whether respiratory gas concentrations within the confined space exceed a predetermined concentration threshold The detection system may further include an accelerometer-controlled, range-controlled radar unit to detect movement within the confined space during times in which acceleration of the confined space is less than a predetermined acceleration threshold. In this manner, a measured respiratory gas concentration that initially indicates a presence of a person or animal within the confined space may be confirmed by motion detection.