Application Study of Distributed Temperature Measuring System in the Public Building Energy-saving Based on 1-Wire Bus

With the rapid development of science and technology,various bus technologies are applied to different fields due to their respective advantages.While 1-wire bus technology is being more and more widely used in finance,telecommunications,commercial,military and other fields for its characteristics of simple structure and design,convenient communication link and low wiring cost.Usually,the public buildings' areas are so large that we have to measure the temperature from different points.In order to avoid complex wiring,we use 1-wire bus approach with DS18B20 as the temperature sensor to collect data information of distributed temperature.Furthermore,the hardware structure and software procedure of the system are represented in this paper.And also the field-debugging and running of the system show that the high detection precision and simple wiring mode make this method extremely suitable for the temperature control and energy-saving in public buildings.