Patent ID: 6081195
Filing Date: 2000-06-27
Classification: G08B

Abstract:
A device for determining the efficacy of an air condition detector utilizing at least one sensor to provide a data signal corresponding to a preselected parameter of a condition of the ambient air, said device comprising:an alarm;a programmable logic circuit capable of evaluating input data supplied thereto, said circuit including means for generating an output signal to energize said alarm;a power source for said alarm and programmable logic circuit;means for providing said input data to said circuit for evaluation indicative of operation of said power source, said circuit generating said signal for energizing said alarm if said evaluated power source input data indicates an undesirable operation of said power source;means for providing said input data to said circuit for evaluation indicative of operation of the at least one sensor in the detector, said circuit generating said signal for energizing said alarm if said evaluated sensor operation input data indicates an undesirable operation of the at least one sensor; andmeans for providing said input data to said circuit for evaluation indicative of an elapsed time between the receipt by said circuit of successive data signals provided by the at least one sensor, said circuit including means for comparing said elapsed time to a predetermined time parameter, said circuit generating said signal for energizing said alarm if said elapsed time is at an undesirable relationship with said predetermined time parameter, whereby to continuously monitor the efficacy of said detector.