Design Of Automatic Fire Alarm System Based On ZigBee

With the deepening of our country's Reform and Opening-up,and the further development of the economic and society,a large number of modern high-rise buildings,underground and large span and large space of complex buildings have mushroomed emergence of competition,has become an important symbol of urban modernization.The increasing of the above buildings provides a strong guarantee for the development of the economic and society,but also brings a large number of security problems that can not be ignored to the safety of people's life and property,such as much more hidden danger of the fire,more faster spreading of the fire,difficulty of the evacuation and rescue,once the fire,the consequences are very serious.Therefore,using the fire automatic alarm control system with excellent work performance is very necessary.The traditional fire automatic alarm system,due to its excessive dependence on electric circuit connection,wiring complex and the limitation of system topological structure,has been not completed the need of modern fire monitoring gradually.Under this background,the research and design of fire automatic alarm control system based on wireless transmission technology has played an important practical value for the building fire.The work of this design includes:the research of the hardware ZigBee pins and the wireless sensor networks,research of Ti stack,CC2530 chip,program design of the sensor data acquisition,data collection of the computer,design and debugging of the display and recording software.The design of CC2530 ZigBee chip produced by TI company as the core,introduces characteristic and function of the coordinator node and sensor node which plays the role of controller by CC2530,and sensor access applications,wireless internet information transmission program,coordinate data upload program,data compression algorithm and the upper machine receiving,display,alarm and storage software design and development process.Through the coordination of the chip,sensor and computer that can achieve the function of displaying the sensor information such as the temperature.This paper describes in detail the design ideas and methods of the coordinator and sensor nodes and other procedures,also introduced the details of each sensor is connected with the chip and the hardware circuit etc.Through this graduation design work,completed the design of hardware experiment,the sensor function learning,serial port driver development and PC software,through the final commissioning,realize the coordinated operation on the lower position machine and the upper position machine.Debugging results show that,the design can satisfy the wireless transmission of fire alarm under certain conditions,can be used for practical application.