Design Of Central Air Conditioning Wireless Monitoring System Based On ZigBee Technology

With the continuous development and progress of the society,the central air conditioning system has been paid more and more attention as an important part of intelligent buildings.Because the central air-conditioning system have big energy consumption(accounts for about 50%of the total intelligent building energy consumption)and it is not easy to be centralized intelligent management.Therefore,how to use advanced control technology to save energy effective for central air-conditioning and how to use ZigBee network to centralize management of the central air conditioning has become the hot issue of research in the field of control.In order to solve the problem of complex cable wiring and high cost problems,this paper designs the central air conditioning control system based on wireless network to realize centralized intelligent management,remote central air-conditioning communication.The paper uses ZigBee technology to manage and control central air conditioning system.This paper presents a ZigBee network communication technology based on CC2430 and ZigBee protocol stack as the research platform to realize remote control of central air conditioning.And the end of the fan coil of central air conditioner is connected to realize the unified management and control.This paper designs the overall structure of central air-conditioning monitor system and the overall scheme of ZigBee network.And this paper has carried on the design of the hardware and software system.This paper uses the modular designed method and the circuit consists of CC2430 module,wireless transceiver module,temperature and humidity sensor module and the bottom plate of the STM32F103 module.This paper uses the design methods of the formation of ZigBee sub network and the underlying version in software design and designs central air-conditioning control system management software.This paper proposes a ZigBee wireless sensor network routing algorithm based on ACO-AODV algorithm.This algorithm can reduce the overall energy consumption of network,and it can reduce the failure node and maintain the performance of the network with low delay so as to prolong the service life of the whole ZigBee network.Its validity is proved by simulation experimentAiming at shortcomings of the multi and fault node in the ZigBee network,this paper proposes an energy balance and ant colony optimization fault-tolerant routing algorithm EAFT.The simulation results show that EAFT algorithm significantly effect on fault tolerance and energy,which has practical application valueThis paper analysis the working principle of variable air volume air conditioning system and control algorithm VAV air conditioning,and this paper designs central air conditioning fuzzy neural network control system based on genetic algorithm.Because the genetic algorithm is used to optimize the weights of the neural network,the neural network can better adjust to optimize the fuzzy control rules of fuzzy controller to realize the optimal control system.The VAV air conditioning can achieve the more ideal control effect.