Design And Research Of Smart Home System Based On Wireless

Since 2008,Premier Jiabao Wen proposed the idea of "perceived China".Then the Internet of things is officially listed as one of the five emerging strategic industries in China.With the development of society and the progress of science and technology,the demands for life are becoming higher and higher.The study of intelligent home furnishing also attracts much attention of many researchers.Its development speed is very fast.The intelligent home furnishing is convenience,safe and comfortable.Thus the smart socket is an important part of the intelligent home furnishing systems.For the above situation,we designed a STM32 wireless control-based smart home control system through the combination of WIFI and GSM to achieve short distance and remote wireless control.Through control system is mainly composed of intelligent socket module,home LED lamp module and home security module.Each module can work alone,or can also form a complete control system with other modules.When the work alone,various modules can achieve the corresponding function through the host computer by sending the corresponding instructions.In addition,using the router to build the three modules of WIFI into a LAN and then through the network debugging assistant software,it can create a virtual server.We can simultaneously send instructions to the three modules through the host computer.Then through the GSM module SMC service,it can form another data wireless transmission channel.In terms of hardware design,intelligent socket control system mainly includes the STM32 single chip computer core board(minimum system and external clock circuit),power conversion circuit,AC voltage/Current acquisition circuit and other peripheral circuits combining with WiFi and GSM wireless communication technology.The household LED lamp control system mainly consists of power conversion circuit,standby power supply circuit,wireless communication circuit composition,power supply voltage acquisition circuit,indoor light collection circuit,indoor temperature collection circuit and LCD display;The household security control system consists of intelligent controller chip,power conversion circuit,wireless communication circuit,smoke collection circuit,temperature acquisition circuit and flame collecting circuit.In the home LED lights and security module,the power supply is provided by the intelligent socket dc12v voltage through their respective power conversion circuit output system required voltage.In the aspect of software,the control system uses the Keil MDK and the network debugging assistant as the research and development software by using the C language as the programming language to complete the system software program design.The Keil MDK and network debugging assistant is considered as a research and development software to program code writing,compiling,burning and wireless communication debugging and other ancillary work;the program are used to the modular design.Considering the convenient and powerful features of the MC/OS-Ⅱoperating system transplant,it makes the hardware resources be more reasonable use.Because the full use of the chip internal resources to reduce the use of peripheral circuits,it greatly reduces the system development difficulties and costs.After finishing the software and hardware design of the control system,it satisfies the design requirement by setting up the experimental platform to verify whether the control system.The experiment shows that the intelligent home control system designed in this paper has the normal functions and has high popularization value.