Design Of Smart Home System Based On Embedded Linux And ZigBee Technology

The 21st century is the age of explosion of knowledge and technology.In recent years,computer networks are rapidly developing.At the same time,artificial intelligence is gradually entering our field of vision.Our lifestyle has changed dramatically over the past two decades.As a product of scientific and technological progress,smart home is quietly entering our lives,smart speakers,smart sweeping,robots,smart door locks,smart cameras,etc.have appeared in our lives,which has provided convenience and fun for our home life.In recent years,China's smart home industry is booming,But compared with western developed countries,China is still at its infancy.The smart home system should be an ecosystem and requires joint efforts in many fields.In this paper,on the basis of predecessors' solution to smart home system based on embedded Linux and ZigBee technology of smart home system design scheme,It breaks the predecessor's method of integrating multiple modules and integrates each module into a system,using ARM9 of processing speed and its rich resources and peripheral interface within processing speed slow and small memory.The ZigBee ad-hoc network and low power consumption are used to build the internal network of the home,intention to realize the control system of the delayed low,easy to operate,low power consumption,system security and stability of the target.In this design,the smart home controller uses the S3C2240 chip produced by Samsung and mainly completes the hardware design of the S3C2440 core board and the U-Boot,Linux kernel 3.4.2,root file system and device driver of the embedded system.ZigBee communication adopts the solution provided by TI.The hardware platform adopts the CC2530 chip,and a 15mm*28mm power amplification module is designed around this chip,and with the aid of Zstack ZigBee network protocol stack to form a Mesh type,this paper introduces the process of ZigBee network at the same time.In order to realize the real-time detection of ZigBee signal strength,a handheld ZigBee signal detector is designed,which can provide reliable theoretical basis for the installation of node equipment.At the same time,the OTA wireless upgrade of ZigBee is realized,which provides a solution for the upgrade of the equipment.The ZigBee module is designed with the learning function of infrared companion and touch switch panel.At the end of this paper,the communication distance and system stability of ZigBee module are tested.The experimental results show that the design of smart home system with ZigBee Mesh network can meet the needs of home-style renovation.The overall operation of the system is reliable and convenient,and it has basically completed the predetermined target,which can realize the intelligence and convenience of smart home with mobile APP and voice.The Smart home system based on embedded Linux and ZigBee technology has unique advantages in power consumption,performance,cost and scalability,so it has a broad prospect in the development of smart home.