Real-time temperature field monitoring system of large-scale structures

Structural health monitoring has already become a hot and difficult problem in the discipline of civil engineering currently. Temperature monitoring is one of the most important aspects of large-scale structure health monitoring and evaluation. A system based on the digital temperature sensor DS18B20 is developed for distributed temperature monitoring of the heath monitoring system of the Wuhu Yangtze River Railway Bridge, The system has been running well in health monitoring of the Wuhu Yangtze River Railway Bridge and Zhengzhou Yellow River Railway Bridge. Real-time monitoring of the temperature field of bridge structures is realized. Field test results and the running conditions of the system show that the system is characterized by strong real-time nature, high reliability and accuracy, high performance-price ratio, good versatility and so on. The system has great reference value to temperature-field monitoring of other large-scale structures in practical application. The features and workflow of DS18B20, and the hardware and software design of the system are described in detail. On-the-spot application is summarized.