Design of temperature acquisition system based on Ethernet

Abstract

This paper presents a design method of three point temperature acquisition system based on Ethernet. and described the hardware and software design of system in detail. the hardware section mainly describes the principle and use of Ethernet controler DM9000A which is widely used in industry. The software part represents the structure and transplant of the open source TCP / IP protocol stack uIP 1.0. System completed the design of the Ethernet interface card and developed a software which displays the temperature value on PC.