Patent ID: 10957185

Abstract:
A remote fire detection system includes a plurality of sensor nodes, each comprising a smoke sensor, a temperature sensor, a gas sensor, and a processor having inputs coupled to the outputs of the sensors. The processor processes the sensor signals to generate at least one of smoke, temperature, or gas metric information, and determines a unique time window within a reporting period. A transmitter transmits report generated by the processor during the unique time window within the reporting period. A personnel node includes a location processor that generates location information of the personnel node and a transmitter that transmits the location information. A gateway node includes a receiver that receives reports generated by the plurality of sensor nodes during the unique time window within the reporting period. A processor generates a waveform comprising synchronization pulses during the reporting period and processing the received reports generated by the plurality of sensor nodes to generate an uplink message in response to the at least some of the sensor metric information. A transmitter transmits the waveform and the uplink message. A server node receives the uplink message and determines a probability of a fire at a location based on sensor metric information of the received uplink message.