Building Fire Alarm System with Multi-sensor and Information Fusion Technology Based on D-S Evidence Theory

Multi-sensor and information fusion technology based on Dempster-Shafer evidence theory are applied in the system of building fire alarm to realize early detecting and alarming. By using multi-sensor to monitor the parameters of fire process, such as light, smoke, temperature, gas and wet, the range of fire monitoring in space and time is expanded compared with single-sensor system. Then D-S evidence theory is applied to fuse the information from multi-sensor with the specific fire model, and the fire alarm is more accurate and timely. The proposed method can avoid the failure of the monitoring data effectively, deal with the conflict evidence from the multi-sensor robustly, and improve the reliability of fire warning significantly.