earticle

영어

The paper presents a new server system for a wireless LAN DMX to enhance diverse LED lighting effects. In order to enhance the capability to send DMX packets to the large number of DMX client devices, a new WDMX server system is proposed based on a NDIS miniport driver. Through the NDIS miniport driver rather than raw TCP/IP socket, the throughput of the server is increased because header sections of TCP/IP stack are removed. Even, the format of Ethernet frame is modified to use a new type of addressing scheme which can address the devices by universe ID and DMX ID value. The implemented server software program which also use thread technology and a flexible data structure can support up to 10,500 DMX channels with the refresh rate of 40msec. Experiment shows the results and performances about the WDMX server system. Last but not least, the WDMX server system shows possibilities which can be supported as many as we want to play in entertainment area.