Patent ID: 7876213
Filing Date: 2011-01-25
Classification: G08B

Abstract:
1. An emergency notification system (ENS) for annunciating in an area of interest in a presence of an abnormal condition in a hazardous area, the ENS comprising: (a) a detection network configured for detecting an abnormal condition in a hazardous area and producing an information signal indicating the presence of the abnormal condition, and configured for processing the information signal and communicating a transmission input signal based at least in part on the information signal; (b) a transmission terminal configured for receiving the transmission input signal and for communicating a transmission control signal based at least in part on the transmission input signal and recognition of detector alarm states for detectors deployed in specific locations; (c) a transmission interface configured for receiving the transmission control signal from the transmission terminal and transmitting a wireless transmission based at least in part on the transmission control signal; (d) a personal annunciation device (PAD) configured for self-arming into an armed state when moving into the area of interest and self-disarming into a disarmed state when moving out of the area of interest and configured for receiving the wireless transmission and annunciating the presence of the abnormal condition only when located within the area of interest based at least in part on the received wireless transmission and configured for performing a self-check and alerting when located within the area of interest, the PAD having a unique identification for transmittal to a base station when the PAD is transitioned to self-armed and when the PAD is transitioned to self-disarmed; and (e) an RFID reader configured for recognizing the state of the PAD and causing the PAD to self-arm into the armed state when moving into the area of interest and self-disarm into the disarmed state when moving out of the area of interest.