Intelligent Uptowns Information Distribution System Based on Serial Port Server

Information distribution system of intelligent uptowns based on serial port server is discussed.The system connects the terminal devices based on singled-chip microcomputer to Ethernet by using serial port server.The determination method of parameters in the serial port server is discussed.The main idea for designing the system is described.The implementation of the software and hardware is introduced.By using serial communication based on Modbus and TCP protocols,it is tested that the system is reliable in data transmission,quick to response and flexible to extension.Network management on intelligent uptowns is achieved.