Systems and methods for detecting gesture events in a hazard detection system

摘要

Hazard detection systems and methods according to embodiments described herein are operative to enable a user to interface with the hazard detection system by performing a touchless gesture. The touchless gesture can be performed in a vicinity of the hazard detection system without requiring physical access to the hazard detection system. This enables the user to interact with the hazard detection system even if it is out of reach. The hazard detection system can detect gestures and perform an appropriate action responsive to the detected gesture. In one embodiment, the hazard detection system can silence its audible alarm or pre-emptively turn off its audible alarm in response to a detected gesture. Gestures can be detected by processing sensor data to determine whether periodic shapes are detected.

主权项

1. A hazard detection system, comprising:
at least one hazard detection sensor; circuitry operative to sound an audible alarm in response to a hazard event detected by the at least one hazard detection sensor; a passive infrared (PIR) sensor that detects movement of at least one object; and control circuitry operative to:
receive data acquired by the PIR sensor; anduse a shape matching algorithm to determine if a gesture event exists in the received data, wherein the control circuitry is operative to use the shape matching algorithm to:
calculate a non-wave score based on a sample set of the received data;calculate a wave score based on the sample set; anduse the non-wave score and the wave score to determine if a gesture event exists in the sample set.