US 2015/0029019 A1 · SYSTEMS AND METHODS FOR PROCESSING ULTRASONIC INPUTS

Abstract

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 using one or more ultrasonic sensors, or gestures can be detected using a motion detector in combination with one or more ultrasonic sensors.

Claims36

Dependent claims

A hazard detection system, comprising:

at least one hazard detection sensor;
alarm generation 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 having a wide field of view for detecting movement of at least one object;
and
at least one ultrasonic sensor having a narrow field of view for detecting presence of at least one object, wherein the narrow field of view is less than the wide field of view;
and
control circuitry operative to:
process data acquired by the PIR sensor and the ultrasonic sensor;
determine if a gesture event exists in the processed data;
and
cease the sound of the audible alarm when the gesture event is determined to exist.

8 more elements

Dependencies are inferred from the claim text.

Systems and methods for processing ultrasonic inputs

Life of this patent

Systems and methods for processing ultrasonic inputs

Life of this patent

Abstract

Claims36