Study on the improvement of Malfunction of automatic fire detection system on the urban rail

If automatic fire detection equipment which is consist of fire protection system which detected in the early stages of a fire and interlocked other fire protection equipment alarm a false alarm (there are no fire, but it alarm there are fire), cause confuse. If these kinds of error occur again and again, even manager can be turn fire detection equipment off. Because there frequently occur false alarms, so turn fire detection equipment off, if really a fire occur, the fire detector can’t alarm and interlock other fire detection equipment. So it can delay fire suppression, evacuation, and produce loss of lives and properties. That’s the reason automatic fire detection equipment is most important in Metro fire system. As public transportation system, metro and its fire detection system notice false alarms cause massive disruption to the public. And it makes loss trustfulness about metro fire detection system, so that the public can’t behave a right response. Therefore, this paper, Metro Fire Department fire sensors could malfunction occurs in the system as reviewed and discussed ways to improve the environment in which public transportation automatic fire detection equipment reliability and attempts to improve. If the automatic fire detection system which detects the fire in the early stage of fire and makes each interlocked fire-fighting equipment to work activates a false fire alarm, it could cause confusion by operation and alarming of fire-fighting equipment. If these false alarms activate repeatedly, a manager would shut the power of receiver down. If the power of receiver is shut off due to frequent false alarming, in case of actual fire, the alarming would not transmit correctly and the interlocked equipment could not work properly. This delay of instant evacuation and initial extinguishment could cause losses of life and property. Therefore the function of automatic fire detection equipment is so important in the fire-fighting system of urban rail. If an abnormal alarming occurs in a railroad as a public traffic method, it could cause big confusion to citizens using the railroad, and citizen’s ability to react would drop noticeably because they don’t give trust to the fire protection system. Therefore this thesis would increase the reliability of automatic fire detection system of public transportation by reviewing the environment which the false alarming could occur in the urban fire protection system, and studying the improvement proposal.