Network-Based Multi-Point Temperature Measurement System Using Intelligent Sensor

Temperature is a basic Physical factor, almost all of the scientific and industry work have a way with temperature. So, how to control temperature accurately, is very important in scientific research and industry quality. However, temperature-measuring apparatus in the market now only can check and measure the temperature of one point, at the same time, the temperature information is not real time and the precision is low. And this situation is bad for temperature measuring.As the industry and the society developing, the temperature becomes more and more important and a lot of products are sensitive to temperature. It takes a great of troubles for the industry-controllers to make decision .In this situation, design and implement one applicable system which can watch measure and control the temperature and the measuring results is real time and the precision is great is more essential.In order to meeting this application, this paper talk about The Multiple-Point's temperature Measuring System. The implementation of the Internet communication technology in temperature sensor network is introduced, the data is transmitted successfully. The signal detected by the temperature sensor is controlled by MCU AT89S52 and it can be transported to remote place through Ethernet controller. The terminal receiver can be a PC which communicated with Internet. The whole test units are well introduced and relative tests are launched. The results show that the system is able to transmit real-time data stably. The cost of the unit is relatively cheap, so it can be applied in many kinds of industry fields.This system based on single chip computer, can inspect and control multiple temperatures in real time. The Slaved Machine can collect temperature information on its own and display it on the LED module. Following the Master Machine's command, the Slaved Machine can up-send the temperature information to the Master Machine through the RS-232 bus interface and the communication protocol. The Master Machine sends commands, controls the Slaved Computer gathering and up-sending the temperature data including history information, and it manages processes and stores the temperature information. The Master and Slaved Computer will exchange information and correspond to each other, so it works together perfectly.