Abstract
The high-speed development and wide application of information technology has brought revolutionary progress to and influenced human beings. As the result, the emerged computer&server room arouses serious daily maintenance.The fire fighting is one of them to the computer&server room. The aim of this paper is to design one auto-alarm system based on the temperature supervision.By means of combining theory discussion arid practical development, the author studied the 1-wire bus technology developed by the Dallas Semiconductor company in USA. At the same time, the author realized the temperature supervision as one part of the auto-alarm system based on DALLAS 1-wire bus technology and MCU. Also, the author engineered and designed one on-line and cheap temperature supervision system.
Keywords: 1-wire bus, DS1820, AT89C51