Building Remote Measurement And Control System Based On Bluetooth 5.0

With the rapid development of the Internet of Things industry in China,a large number of intelligent electronic devices based on the Internet of Things have been widely used in building construction.It mainly uses the Internet of Things technology to achieve wireless control of intelligent electronic devices.At present,ZigBee and Wi-Fi technologies are the main technologies of Internet of Things in intelligent buildings.However,ZigBee technology is easy to control,and Wi-Fi network has high power consumption.There are some drawbacks in using them alone.With the increasing use of intelligent electronic devices,some new problems have arisen,such as the increasing number of intelligent electronic devices,the cumbersome control,the weakening of control signals by the wall,the installation of intelligent devices in the building is too far to control.In view of the above problems,this paper investigates and analyses the application status of Internet of Things technology in intelligent buildings at home and abroad,and designs a remote measurement and control system based on Bluetooth 5.0 for Mesh networked buildings.The system mainly solves the core problems of intelligent equipment in networking form,power consumption,coverage and remote control.The system is mainly composed of wireless communication network system and control platform.The main research results are as follows:(1)Based on Bluetooth 5.0 protocol,the node networking process is designed,a more reliable Mesh network is established,and the relay function of the node is realized,so that the information can be forwarded to the whole network node until the target node receives the information.(2)Software is developed on Android Studio platform to realize Bluetooth node one-key networking function.The grouping function is designed in software to realize one-key control of multiple node devices in the group.(3)The MCU built in the ESP8266Wi-Fi module is developed by using Lua language,and the Bluetooth node data in the Mesh network is sent and received.At the same time,by configuring network hotspots,the network upload of data packets is realized.(4)Based on Django framework and Python language,a remote measurement and control platform is built,which realizes the collection,logical processing,storage and visualization of the data of the gateway.Then the remote monitoring and control of the equipment in the building is realized at the remote terminal.Finally,an experimental platform is built to verify the main functions of the remote measurement and control system,mainly through packet capture verification and physical verification.The experimental results show that the system can effectively solve the problems existing in the control mode,communication distance and network topology of intelligent devices in buildings.It has the characteristics of low power consumption,reliable communication and wide communication range.At the same time,it also provides a set of schemes for the application and development of Internet of Things technology in other fields such as industrial control.