Mass Concrete Crack Monitoring Technology Based on Wireless Sensor Networks

The monitor and control of temperature and temperature stress for large volume concrete casting process can effectively prevent the generation of cracks.After analyzing the characteristics of the usual monitoring methods for mass concrete temperature and stress,the paper has presented a distributed temperature and stress monitoring system based on wireless sensor networks and mobile agent technology.By using wireless sensor node for the concrete temperature and stress,the parallel distributed information collection and processing are realized.The operation and installment are convenient and reliable with network topology and the real overall distributed pattern.By applying mobile agent into wireless sensor networks to solve the collaboration,coordination and information fusion between heterogeneous systems,the transmission of the redundant data and the node energy consumption are effectively reduced.The experimental results show that the system can achieve real-time online monitor of the temperature and strain of the concrete construction.