Study On The Control System Of Intelligent Building Based On LCN Bus

Under the correct guidence of the sustainable development national policy, with thedevelopment of electronic technology, computer technology and communication technology,the rapid rise of internet of things technology and its applications, advancing to the "greenbuilding" consturction planning which includes the features of intelligent, digital,comfortable, energy-saving and safety is imperative. Meanwhile, with the increasingdemand for intelligent building electrical monitoring system, the electrical buildingintelligent monitoring study is to have a huge economic benefits and social signigficance.1. Under this circumstance, this thesis first describes the development of the controlsystem of intelligence building both in the domestic and internationally. On the basis ofthree typical building buses, local operational intelligence building LCN bus is chosen,which is high-reliable, strong driving and supporting communication without controlling,and LCN bus technique is studied and analyzed.2. The intelligent building control system this thesis researches includes supervisionplatform running on upper computer, the communication gateway module, a local controlnetwork connecting LCN bus modules, as well as the GSM MODEM.Using Visual C++6.0to design and develop a computer monitoring software LCN-CMS which supports scenemanagement, configuration programming, and user-friendly intelligent application, whichwill also real-time monitor the state of LCN bus module.3. The thesis gives a hardware implementation of intelligent building control systemand software design: hardware parts, communications gateway module LCN-PC is basedon the RS232interface, which is responsible for computer monitoring software under thecommand bus network packet upload two-way data communication; underlying LCN busmodule is for data acquisition and processing, transmission and peripheral I/O port control,which consists micro-controllers, sensors and actuators; GSM MODEM uses TC35icommunications module to achieve sending and receiving SMS. The main research contentof software part include how GSM modem achieves serial communication, SMS encodingand parsing, the remote control of LCN bus module silicon-controlled port light switchbetween computer monitoring software and LCN bus.4. After running the simulation test of the control system of intelligence building, itelaborates that how to use computer monitoring software LCN-CMS to achieve messagecommunication and remote control among GSM MODEM, computer monitoring software and LCN bus. It also demonstrates the theoretical and practical feasibility of LCN buscontrol system of intelligence building.