Design And Implementation Of Software And Hardware Of Smart Home Control System

With the development of mobile internet technology,smart home is increasingly popular in the market and customers.However,with the constraints such as expensiveness,installation inconvenience and maintenance difficulty,the smart home that employs bussing technology fails to enter the mainstream market even through several years of development.Actually,as wireless technology is getting widely spread,a low-cost smart home control system with wireless technology being its core has become the new orientation of this industry.From the point of complete smart home designs,present products in the market still have their shortcomings.Some of them lay too much enphasis on home security or intelligent gateway of home control;interfaces and operations of some single pieces based on WiFi or Bluetooth are overcomplicated;complete smart home designs that start from the purchase of household electric applicances are unquestionally constrained by high expenses and customer recognition dregree towards brands.Synthesizing the product characteristics in smart home market,the project aims to establish a low-cost wireless control system for smart home,based on mobile internet technology.The system features integratedly security monitoring,intelligent control,remote visualization and voice prompt.In the system,an intelligent gateway will be designed as the core component,WiFi will be used for connecting the server,and communication modes of intelligent devices and security sensors will be realized via 433Mhz technology.At the same time,supporting software and hardware for the control of sockets,switches,lamplight and curtains will also be designed,as well as a web camera for remote visualized monitoring of home environment and inteleggent devices.The thesis first discusses the development situation of foreign and domestic smart home industry,explores the general scheme of control systems and deeply analyzes the functional framework and key technology principles of the system while selecting models for the devices to be integrated and designing the hardware products to be developed.Also,the author gives comprehensive descriptions to the intelligent gateway,human motion detector,intelligent socket and controllers of switches,curtains and lamplight,and provides schematic diagrams of the devices and techniques and cautions during hardware circuit design in the first section.Secondly,the author introduces the idea of intelligent gatway,and further demonstrates how 433Mhz communicationm,security functions,device addition and remote device update would be implemented.Besides,major functions of the system,such as the implementation of drives of human motion sensors and other intelligent devices and system applications are described in detail,especially the highlights in the design.Finally,the problems that appeared during the system development are tested and solved,and the author integrally conducted joint debugging in aspects of device addition,function control and mode settings.