The Design of Building Fire Monitoring System Based on ZigBee-WiFi Networks

Abstract : With the rapid development of wireless communication technology, people's life has undergone great changes. In recent years, the comfort and safety of the building environment have become a universal concern. However, building fire is the greatest threat to building safety. In consideration of the current issues on building security, the design applies the important part, the wireless sensor network technology to building fire safety monitoring system and establishes the wireless sensor network by using ZigBee technology and ZigBee-WiFi gateway which transforms ZigBee network into WiFi network, In addition, taking advantage of the ZigBee wireless sensor network locates a fire place so that the fire information is uploaded to the handheld terminal and the building security personnel work out the retreat and rescue plan in time. This paper provides a new solution for building fire monitoring system.
 EXISTING SYSTEM :
 ? This paper based on GSM automated fire alarm system for remotely alerting fire and smoke incidents to the property owner outside the building or industrial premises quickly by sending short message via GSM network. Along with study of existing fire detecting systems. ? Sensors integrated into structures, machinery, and the environment, coupled with the efficient delivery of sensed information, could provide tremendous benefits to society. ? Wireless Sensor Networks can offer unique benefits and versatility with respect to low-power and lowcost rapid deployment for many applications, which do not need human supervision.
 DISADVANTAGE :
 ? Wireless gateway can greatly improve the problem of remote transmission, allowing managers to obtain information with a remote terminal timely and accurately. ? We may conceive that, constructing automatic fire alarm system in wireless transmission way, can avoid above problems. ? The monitoring system must solve the reliability problem. The lifetime of WSN depends on the failure of the sensor node. ? It is a new wireless technology that has application in various fields. Zig-Bee benefits are low cost and Range and obstruction issues avoidance.
 PROPOSED SYSTEM :
 • The proposed system uses N-F-N Gateway which is an intelligent gateway interface for fire monitoring workstation. • It also supports full panel programming using embedded c and network diagnostics. • The purpose is to design a real-time building fire monitoring system which is more facilitative to contact with the personal handy terminal and has wider covering range with in a building. • We propose Sensors for sensing Physical parameters (temperature and humidity), a wireless sensor network architecture for this specific type of application. • It proposes a novel network structure which increase system scalability.
 ADVANTAGE :
 ? The wireless communication technology is widely used in building automation, changing the traditional wired communication way. ? ZigBee-WiFi network has ZigBee’s features such as low complexity, low power consumption, high cost performance, self-organization, good flexibility and high fault tolerance, integrated with WiFi’s features that a high communication speed, good stability, wide range, positioning function and convenient access to terminals. ? The remote monitoring center is mainly programmed by using Lab VIEW software to, Lab VIEW is a visual graphical programming language, it avoids the complex codes, and it provides a more intuitive image, widely used in the PC interface programming.

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