Research on landscape lighting system based on DMX512

The extended use of DMX512 protocol has been applied in many areas such as stage and theatre. While it has two inherent flaws in landscape lighting control: the quantitative limitation of control slots and slow bandwidth utilization ratio. This paper proposed the evolution of a management and control system for landscape lighting. By using the upper Internet management network, several lower DMX512 control networks can be connected to one computer to avoid the former flaw; based on the theory of scenes, the developed addressing way of logic group address enables the scene implemented with one packet of just two data slots. Not only can run with the Internet management network, the lower DMX512 control network can also work independently, actually it is compatible with the present standard DMX512 product.