Patent ID: 9652975
Date: 2017-05-16
CPC Classifications: A01K,G08B,H04W

Claim:
1. An integrated building occupant protection system for protecting occupants of a building, the protection system comprising: a plurality of interconnected alarm units, each alarm unit being located in a different area of the building; each alarm unit comprising: a controller; and, coupled to the controller, a threat sensor to detect a threat, a timer, an audio alert device, a communication device, and at least one noise sensor to detect sound from the audio alert device and the communication device; wherein the protection system conducts a self-test, the self-test including one or more of the following actions: (i) at least two threat sensors are prompted by the controller to measure the temperature in respective areas of the building, the temperatures measured by the at least two threat sensors being compared with each other; (ii) the audio alert device is activated by the controller; and (iii) the communication device is activated by the controller; and wherein the controller recognizes action (i) as successful based on the temperatures measured by the at least two threat sensors being within 15% of each other; and action (ii) as successful based on the at least one noise sensor detecting sound from the audio alert device; and action (iii) as successful based on the at least one noise sensor detecting sound from the communication device; and wherein the controller resets the timer for a prescribed period until a next self-test.