| In daily life,the fire is a kindof common natural disasters,the loss of property is also not to be estimated,and often a fire is a tragic tragedy.Therefore,people pay more and more attention to and strengthen the construction of fire safety system design.However,the current fire alarm system has defects such as long construction time,signal cable transmission,easy aging damage,maintenance difficulty,high cost and only single alarm function.This paper designs a new intelligent fire control system based on the intelligent fire control system of province,which is based on the scientific and technological support program of Jilin rovince.Based on ZigBee technology,the following aspects are studied.Namely:(1)the reference node and the locating node which have the function of fire alarm function and positioning.The reference node is composed of CC2530 chip,temperature detector,smoke detector,and has the function of monitoring the environment and the police.The positioning node is composed of CC2531 chip,temperature sensor and pulse pressure sensor which has the function of positioning engine,which has the physiological characteristics and positioning function.(2)a fire alarm system based on ZigBee technology and CAN bus is designed.ZigBee technology is adopted in the communication between the nodes,reference nodes and gateways.The communication between the gateway and the control center,the control center and the fire linkage system adopts CAN bus.(3)a three-dimensional accurate positioning method for the building of the trapped personnel is proposed.With each layer set of reference nodes and trapped personnel to carry out the positioning of the nodes to carry out two-dimensiongal plane positioning,and then set the number of each floor to the gateway number to carry out the floor positioning,so as to realize the three-dimensional positioning of the trapped personnel,you can know who is in a few buildings which room.(4)a low power fire linkage control system bsed on ZigBeetechnology is designed,which can reduce the cost and improve the reliability and stability of the system.System using ZigBee technology,CAN bus technology,the three side positioning algorithm,combined with the fire linkage system,to achieve the accurate,timely warning and the positioning of the trapped personnel when the fire occurred.The system has the advantages of high function,low power consumption,high reliability,high accuracy,and can play an important role in the promotion and application of intelligent fire control system in the future. |
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