| Fire accident is one of the disasters threading to public safety and social development because of its harm result. According to rapid development of Chinese vocational education, many higher vocational colleges took their effort to build experimental training venues. In order to provide a solution to fire safety problem of experimental training venues, the paper designed a system of intelligent fire alarm for training room. The system has superior performance, high intelligence, low false alarm rate.The intelligent fire alarm system is for Sichuan College of Architectural Technology, and is part of daily management of experimental training venues. The paper discusses the principles of fire accident detection and the detecting method to sense temperate, smoke and CO gas, so that it is possible to accurately detect environmental parameters. The system chooses 51 series SCM as the control chip which can meet the processing speed and storage capacity. SCM transmitted wirelessly the collecting data to the host computer, at the same time the local LED dot matrix display show the current environment temperature, smoke density value and concentration CO, then security personnel patrol can watch and make the decision. When a fire accident occurs, the controller transmitted the fire information to monitoring center, and voice alarm will worn teachers and students to evacuate, the system can send different voice for different fire condition, greatly improving the degree of intelligence.The system include PC monitoring center which can real-time monitor the environmental condition of experimental training venues, and display environmental parameters. Additionally it is possible to choose any experimental training room to monitor by PC center.The system has the functions of real-time monitoring and alarm, and can be used not only in higher vocational colleges, but also in residential buildings and other buildings. |
