In order to address the risks of performance degradation and excessive vibration response during the long-term service of vibration-damping track structures in urban rail transit, it is essential to develop an efficient wireless monitoring system capable of intelligent identification and dynamic early warning of structural states, thereby avoiding passive upgrades and resource waste of vibration mitigation measures due to the lack of advanced monitoring technologies. Based on virtual instrument technology, a wireless monitoring system is designed and developed to meet the health monitoring requirements of vibration-damped track structures in urban rail transit. The system is capable of long-term automatic monitoring of vibration isolation performance, enabling real-time acquisition of vibration responses, efficient processing and analysis of vibration data, and intelligent evaluation and prediction of the vibration reduction performance of the track structure. The wireless monitoring system is composed of two main components: the hardware module and the software platform. The hardware module mainly consists of a switching power supply, piezoelectric acceleration sensors, a data acquisition card, and a wireless transmission module, enabling high-precision vibration signal acquisition and remote wireless data transmission. The software platform integrates multiple functional modules, including the login and main interface module, communication connection module, data acquisition module, and data playback and intelligent analysis module. It features a user-friendly human-computer interaction interface, modular design, and intelligent data processing capability. Through the optimized selection and in-depth integration of hardware and software, a wireless monitoring system for vibration-dampened rail structures based on virtual instrument technology has been developed. Compared to traditional manual measurement systems, the wireless monitoring system offers significant advantages in operational ease and data processing accuracy. The system enables real-time monitoring of vibration-sensitive points in the vibration-damped track structure and facilitates timely detection of exceedances. In addition, the wireless monitoring system can be seamlessly integrated into the integrated urban rail transit monitoring platform, becoming a crucial component of intelligent rail transit development and providing essential technical support for rail transit safety assessments and environmental protection.
Zhao et al. (Sat,) studied this question.