The Jawaharlal Nehru Port handles more than 65 percent of overall container traffic in India. Without a bridge to connect the port to the Panvel highway in Mumbai, trailers and other container vehicles would have to travel an extra 22 km. Sardar Patel College of Engineering and 21st SHM consultants have developed a structural health monitoring solution to collect data on the existing bridge so it can be rehabilitated and strengthened.
The team used CompactDAQ and LabVIEW to develop the testing and data acquisition system. They used CompactDAQ to record, analyze, and store data from various tests conducted on the bridge. LabVIEW made it easy to carry out frequency and acceleration measurements with built-in functions like power spectrum and distortion. The NI Report Generation Toolkit was used to produce data reports for all measurements. Since its integration, the structural testing system has shown an increase in fundamental frequency, which is a sign of better overall stiffness of the bridge.
In the future, they plan to develop a separate monitoring system using CompactRIO to monitor the bridge 24 hours a day, 7 days a week.