Intelligent Home System Based On ZigBee And STM32 Research And Design

In recent years,with the development of artificial intelligence and the Internet of things,the modern high-tech comes into intelligent residential quarters into people's lives,which makes people are more willing to pursue high quality of life.As a result,the concept of smart home,digital home came into being.Therefore,the smart home system is a variety of sensors,electrical and electronic equipment connected through the network to form a home environment can be monitored,and their home security and other functions of the integrated management system.Nowadays,CPU chips based on the ARM Structureare mainly used in the field of embedded systems.ZigBee technology is also popular in the application of wireless sensor networks.Both of these technologies play an important role in the field of smart home systems.This text has designed and realized the intelligent home system based on STM32 and ZigBee technology.This paper first introduces the evolution of intelligent home system at home and abroad,due to the traditional smart home system has many shortcomings,such as wiring trouble,high cost.The zigbee with short-range wireless communication network flexibility,low cost and so on.Therefore,the use of wireless technology in smart home systems has become a trend.Therefore,this paper uses zigbee technology to build the smart home system's internal wireless network.This design is divided into video transmission module,lighting control module,environmental testing module,electric curtain module,door and garage module,One part of the video transmission hardware designed according to the characteristics of STM32 required peripheral circuits,the use of camera OV2640 video image acquisition,WIFI transmission circuit is supported by a standard IEEE802.11 g / b wireless chip Marvell88W8686,through the SDIO interface with the main control chip to communicate;the software part STM32 microprocessor,the underlying driver and application layer interface design,Then based on the design of WIFI video transmission technology.Lighting module is the use of zigbee modules and other peripheral circuits;environmental detection module is a variety of sensors and their peripheral circuits;Environmental testing module is a variety of sensors and their peripheral circuits;Electric curtain module door and garage module is the use of stepper motor and peripheral circuits;The software part is the function module code written on the basis of Z-Stack protocol.The PC interface is written by QT.The interface of mobile phone is written by JAVA.The interface of video transmission is written by C++ library.Finally,the entiresmart home system performance test analysis,the experimental results show that the basic performance of each functional module stable and stable transmission,to achieve the desired results.