Design And Implementation Of Smart Home Control System Based On WeChat Applet

In recent years,with the continuous improvement of China's overall economic conditions,people naturally put forward higher requirements for comfort in life,and the demand for the realization of intelligent home is becoming more and more intense.As a new concept,smart home has gradually entered our vision.It integrates wireless network transmission technology,automatic control technology and computer technology,and improves the convenience of household appliances.But at this stage,smart home is still in its infancy and has a broad space for development.Therefore,it is of great practical significance to study how to better realize home intelligentization.This paper investigates the current situation of smart home industry at home and abroad and the related hardware technology,small program technology and Internet of Things platform technology,and designs a smart home system based on Wechat small program and Internet of Things platform.It mainly includes OneNET Internet of Things platform,smart home gateway,cloud server,Wechat applet and related smart hardware modules.In this smart home control system,cloud platform uses mobile OnNET Internet of Things platform to manage hardware devices to shorten development cycle and reduce development costs;intelligent gateway consists of NB-IoT module,Arduino core board and wireless transmission module;NB-IoT module uses WH-NB73 and OneNET Internet of Things platform to transmit commands and data;Arduino core board cloud uses ATmega16U2 to transmit NB-IoT module.The received commands are sent to ZigBee module and the environment information received by ZigBee module is fed back to NB-IoT module.The wireless transmission module uses ZigBee module to transmit the information transmitted by Arduino core board to various household appliances and receive the detected environment information.The server uses Aliyun server,which forwards the command of Wechat applet to control household appliances and the environmental information data monitored to the cloud platform.The official web development tool of Wechat is used to develop and design the control pages of Wechat applet and realize the control functions of TV,lamp,curtain and other household appliances.Arduino core board is used to design and develop some intelligent hardware,including wireless intelligent socket,temperature and humidity sensor,infrared transmitter and receiver modules.Wireless intelligent socket uses ZNCZ02 LM as the coreto control the switch or switch of household appliances;temperature and humidity sensor monitors environmental information and feeds it back to the corresponding page of the Wechat applet;infrared transmitter module sends commands to control the switch of the appliances.Finally,a smart home control system which can control household appliances through the micro-message program on the mobile phone is realized,and the expected goal of the design is achieved.It is hoped that the system will be further improved in the future learning process,so as to make more household appliances control functions intellectualized.