The Design Of Intelligent Building Environment Monitoring System Based On NB-IoT

In recent years,with the rapid development of Internet of Things technology and computer technology,various intelligent building environment monitoring systems have emerged.This paper designs an intelligent building environment monitoring system based on NB-IoT.By intelligently managing the building environment,it provides users with a comfortable,safe and efficient working and living environment,and provides convenient and intelligent management for building managers.Means and reduce building energy and operating expenses by optimizing equipment operation and management.Through the terminal system,the Internet of Things platform and the intelligent building environment monitoring platform,real-time monitoring of building environmental parameters and remote control of equipment are realized.On the basis of fully studying the characteristics of NB-IoT technology,STM32L151C8T6 is used as the main control chip,BC95-B5 chip is the narrowband IoT communication module,DHT11 temperature and humidity acquisition module and device control module,combined with C language to complete the softness of the terminal system.Hardware development,the transmission of building environment parameters and the receipt of commands.The China Telecom Internet of Things Developer Platform was used to complete the access design and development of the Internet of Things platform.The platform realized the encoding,decoding and forwarding of data transmission between the terminal equipment and the intelligent building environment monitoring platform.The system application server was built on Huawei cloud,and the intelligent building environment monitoring platform was designed and developed by J2 EE architecture.The platform uses the B/S architecture mode,and the user can access the platform using the browser of PC or smart phone.The platform mainly realizes Real-time display of building environmental parameters,equipment management,historical data viewing,alarm information display,remote control and other functions.The test environment was built to complete the functional test of the entire intelligent building environment monitoring system.The test results show that the NB-IoT-based intelligent building environment monitoring system works stably,has a simple structure and is convenient to use,basically realizes the design expectation and appears in the system test.The problem was analyzed and summarized,and the optimization of the whole system was put forward.