Research On Smart Home Environment Monitoring And Evaluation System

With the rapid development of science and technology,people have higher and higher requirements for home environment and began to pursue a comfortable,safe,and intelligent living environment.However,smart home systems used in the market have high product costs,complicated construction operations and poor product humanization.In order to solve these problems and meet the needs of modern home life,the paper takes the environmental monitoring subsystem in smart home as the research object,adopts a combination of ZigBee wireless network technology and multi-sensor data fusion technology to design a smart home environment monitoring and evaluation system.Based on the functional requirements of the system,the paper designs the overall scheme of the system.The system uses the PC as the control center and adopts the ZigBee wireless network to complete the data transmission between the nodes.The user accesses the host computer interface to view the home environment information and control the household appliances.Multi-sensor data fusion algorithm was studied.Through the analysis and comparison of several common data algorithms,this paper adopts a T-S fuzzy neural network algorithm which combines the advantages of fuzzy theory and neural network to establish a home environment evaluation model.It integrates PM2.5,light,temperature,humidity,and CO₂information in the home environment to achieve a scientific evaluation of the home environment level.Then the evaluation model was established and simulated in Matlab to verify the validity of the model and the accuracy of the evaluation.A smart home environment monitoring and evaluation system was designed.According to the functional requirements of the home environment assessment model based on T-S fuzzy neural network,the paper constructed the overall framework of the hardware of the system.Secondly,the paper completed the hardware and software design of ZigBee coordinator,terminal nodes,sensor acquisition module and home appliance control module.Then,using Visual Studio2010 software to design the host computer user interface for data display and processing.Achieved the function of the system.The paper takes the smart home environment monitoring and evaluation system as an experimental platform,tests the overall function of the system and Zigbee wireless communication performance,and verifies the stability and feasibility of the system operation.Through the analysis of experiments and test results,the system realizes real-time monitoring of home environment information,scientific evaluation of environmental ratings,and control of household appliances.When a dangerous situation occurs at home,it can also notify users at the first time.It meet the needs of modern home life.