With the development of science and technology and the improvement of living standards,intelligent electrical appliances have also been constantly developed,and help people find a more comfortable use experience in the fast-paced life.Scientific control of electrical appliances,on the one hand,helps to develop a good habit of using electricity,reduce energy waste;On the other hand,people can appreciate the convenience and comfort brought by "intelligent life".According to the actual situation of household appliances,author of this paper designed a set of intelligent electrical management system based on Zig Bee and Wi Fi wireless communication technology.Firstly,the paper studies the development status and existing problems of intelligent electrical appliance management system at home and abroad.Based on the idea of modularization design,the whole design scheme for the system is worked out and divided into different function modules.A selective sleep algorithm was put forward according to the characteristics of Zig Bee networks,which can selectively activate or sleep nodes according to their residual energy,so as to balance the energy consumption of network nodes.This paper carries out simulation design for the application of selective sleep algorithm,the results shows that the algorithm is effective,achieve the purpose of reducing the consumption of Zig Bee home internal network,extend the service life of the network,improve the network efficiency.On the basis of the overall scheme of the system,the gateway,the handheld controller and the appliance end-device are hardware designed as well as software programmed.The author also designed the control instructions to be sent from APP and the communication protocols of heterogeneous networks.Through hardware and software co-design,the linkage of the whole system is realized.Zig Bee technology are mainly used in low-speed,low-power wireless environment,whose own characteristics are determined by the specification of its protocol stack.And one of the focus of this research is on the implementation of the protocol stack.The final functional test results show that users can control the electrical appliances that control the internal network through the mobile phone or tablet client and intelligent handheld control terminal,and the system operation is completed to achieve the desired effect. |