Intelligent Control System Of Home Internet Of Things

With the development of the Internet of things,the third information industry revolution is rising.With the common support of sensor and embedded technology,it has been applied in many fields,such as smart home,because of its easy combination,high fault tolerance,easy deployment,easy to increase or decrease sensor nodes,high execution efficiency and high speed.This paper introduces the Internet of things into the home,and designs a home Internet of things system which integrates data acquisition and transmission,voice call and mobile intelligent monitoring.Based on the development of Internet of things technology,with the fundamental goal of designing and improving the home internal Internet of things system,this paper explains the basic theoretical knowledge involved in the home Internet of things monitoring system,the current research status at home and abroad,and the relevant principles of Internet of things technology.In order to realize the specific application of the whole design in the family,the work of this paper is as follows:(1)Data acquisition and transmission system: the system uses STM32F103 as the core processor,and the system is divided into master node and slave node.The master and slave nodes transmit data through Lora module.The slave node can transmit all kinds of sensor data collected to the master node.The master node can analyze the data,and then send control instructions to the slave node.The data can also be uploaded to the cloud through the ESP8266 module,and the obtained data can be displayed on the improved TFT LCD screen.The whole system can complete the sensor data acquisition,upload,monitoring and display of each node.(2)Voice call system: the system uses esp8266 as data transmission node,router as relay and UDP communication mode.ESP8266 is regarded as a data node,all data are interacted through the router,and each node is confirmed by setting static IP and port number to prevent devices connected to the router from being randomly assigned addresses.In order to save the IO port of ESP8266,analog input is used to make multiple keys share one IO port.The experimental results show that the voice call system can realize the mutual call between multiple nodes,and can better meet the needs of indoor voice call.(3)Mobile intelligent monitoring system: the system is a mobile platform composed of video acquisition and wireless transmission.The platform is composed of car body,rotating pan tilt and wireless video acquisition.STM32F103 MCU controls the whole motion part of car body and pan tilt,and controls NRF24L01 and ESP8266 to remotely control car body motion and pan tilt free rotation through 2.4G signal and Internet;The wireless video capture system uses high pass AR9331 routing chip and openwrt routing system,supports all USB drive free MJPEG format output cameras,and the video monitoring status can be queried in real time through mobile phone or PC.In order to accurately obtain the current motion position of the car body,the positioning algorithm is optimized in the software design to realize the real-time positioning of the car body.The experimental results show that the platform is stable and reliable,flexible and simple operation and control,accurate positioning of car body,smooth video display and no stuck phenomenon,which can better meet the video monitoring requirements in a variety of application scenarios.In this paper,through the design of data acquisition and transmission system,voice call system and mobile intelligent monitoring platform,an intelligent control system for home Internet of things is designed and completed..