Research On Wireless Communication Technology Of Music&Light Control System

In recent years, with the development of lighting technology, control technology, communication technology,the variety of environmental lighting project has been developed rapidly. The outdoor music&light performances become a bright pearl on city night lights. So the control system need more research.After decades of development, the traditional stage lighting has sophisticated technology and more product supports. However, because of the outdoor music lights has the complexity of the project environment, the distribution of scattered lamps, the large number of lamp types, if the stage lighting control mode directly applied to outdoor music&light system, there will be a lot of questions, such as: difficult wiring, serious control signal attenuation, signal delay, etc. Therefore, the design of an effective and reliable control solution to solve the control problem has important practical significance.In this paper, according to systematic analysis of the outdoor music&light project, and the conclusion of the current structure of the music&light control system, a wireless-based distributed intelligent control solution has been proposed.For the control program, this paper solved some key technologies: 1) Set up the host computer system and lower system of communication between the object models, design a complete set of data transmission protocol, including the stop-and-wait protocol with the sliding window and the segment data transmission protocol. Then achieved the reliable data transmission. 2) Data transmission design based on the Rijndael encryption algorithm, solute the factors of insecurity existing in the wireless communications such as wireless eavesdropping, fake identity, tampering with data, and ARQ attack. 3) Reliability in the system, with the redundant system design, increased the reliability. 4) Design the management function based on the active networks and makes the system easy to maintain, easy to extend.The system applies to Chongqing "ChaoTianYangFan" music&light project for more than one year, after the actual operation that the control system to meet the control requirements.