Sinusoidal Current Signal-Based Fire Detection System with Automatic Address Assignment

Abstract

In this paper, a novel sinusoidal current signal-based fire detection system is proposed with automatic address assignment. The system model employs a conventional power line to embed fire information, i.e., the address, rather than using an additional communication line. At the transmitter, different frequencies of the sinusoidal current signal are combined and transmitted through a power line. At the receiver, fast Fourier transform (FFT) is applied to distinguish the frequency bins, which can represent the addresses of fire detectors. The proposed system model is implemented and the numerical results are presented in terms of measurements.

Design of OFDM‐based two‐wire bus communication system for fire safety

“…At the same time, the latter needs higher communication speed and cannot meet the complex requirements of intelligent fire safety systems. Lee et al 25 have proposed a two‐wire bus fire detection system based on sinusoidal current signals, which uses frequency and amplitude to represent the address and level of the fire, respectively. Although this method is a significant improvement over traditional methods, the amount of information that can be conveyed by this communication method still needs to be improved.…”