Multi-sensor fire detectors with audio sensors and systems thereof
First Claim
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1. A multi-sensor detector comprising:
- at least one smoke sensor;
at least one transducer for converting an incident acoustic signal to an electrical signal;
control circuits coupled to the at least one sensor and the electrical signal for establishing the presence for fire condition in the vicinity of the transducer, based at least in part on incident acoustic signals emitted by an on-going fire present in a predetermined local region adjacent to the transducer; and
an interface for communication of representations of at least portions of the electrical signal to a displaced monitoring system for audio presentation.
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Abstract
An ambient condition detector incorporates an audio transducer for discrimination between alarm and non-alarm conditions. The transducer can provide occupancy information. In addition, a monitoring system can graphically present information as to the location of individuals, such as fire fighters, in the region.
81 Citations
23 Claims
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1. A multi-sensor detector comprising:
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at least one smoke sensor; at least one transducer for converting an incident acoustic signal to an electrical signal; control circuits coupled to the at least one sensor and the electrical signal for establishing the presence for fire condition in the vicinity of the transducer, based at least in part on incident acoustic signals emitted by an on-going fire present in a predetermined local region adjacent to the transducer; and an interface for communication of representations of at least portions of the electrical signal to a displaced monitoring system for audio presentation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An alarm system comprising:
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a plurality of ambient condition detectors, at least some of the detectors each incorporate an audio transducer configured to provide fire related and occupancy information as well as a smoke sensor; a control unit, in bi-directional communication with the detectors, the control unit including instructions for monitoring outputs of the audio transducers for establishing information pertaining to the location of individuals in the vicinity of respective transducers and which includes instructions for tracking movements of individuals in the vicinity of respective transducers. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of monitoring a region comprising:
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evaluating a plurality of audio indicia from the region; adjusting operational parameters of a plurality of ambient condition detectors in the region in response to at least some of the audio indicia determining at least in part in response to the audio indicia, if a fire condition is present somewhere in the region; and determining at least in part in response to the audio indicia if the region is occupied. - View Dependent Claims (20)
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21. A bi-directional communication system comprising:
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a plurality of variable sensitivity smoke detectors transmitting indications of respective environmental conditions; at least one device transmitting audible indications from an audio transducer; control circuitry receiving the environmental condition indications and audible indications from the audio transducer; wherein the control circuitry uses the indications from the transducer for establishing the location of sound generating activities within a region and uses the environmental condition indications for establishing the location of environmental conditions within the region; and display circuitry for indicating the environmental condition and movement of sound generating activities within the region. - View Dependent Claims (22, 23)
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Specification