Systems and methods for processing ultrasonic inputs
First Claim
1. 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;
detect that a gesture event exists in the processed data, wherein the gesture event is detected when the processed data represents that the PIR sensor detected movement of the at least one object while the at least one ultrasonic sensor detected presence of the at least one object; and
cease the sound of the audible alarm when the gesture event is detected.
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Accused Products
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.
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Citations
34 Claims
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1. A hazard detection system, comprising:
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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; detect that a gesture event exists in the processed data, wherein the gesture event is detected when the processed data represents that the PIR sensor detected movement of the at least one object while the at least one ultrasonic sensor detected presence of the at least one object; and cease the sound of the audible alarm when the gesture event is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for silencing a hazard alarm, the method implemented by a hazard detection system, the method comprising:
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emitting an audible alarm in response to a detected hazard event; playing back a recording that provides instructions on how to at least temporarily silence the audible alarm; detecting an object moving in a vicinity of the hazard detection system in accordance with the instructions of the recording; and at least temporarily silencing the audible alarm in response to detecting the object moving in accordance with the instructions of the recording. - View Dependent Claims (13, 14, 15, 16)
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17. A gesture detection system, comprising:
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a passive infrared (PIR) sensor operative to detect movement of at least one object; an ultrasonic sensor operative to detect presence of at least one object; and circuitry operative to; use the ultrasonic sensor to create a static environmental model; use the ultrasonic sensor to produce a dynamic environmental model; and compare the dynamic model to the static model to determine whether at least one new object is present. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification