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Drones monitor the ground conditions above the subway in real time at low altitude, while the subway conditions underground are monitored by quantum precision measurement and early warning is issued at any time... On July 22, Hefei Rail Group announced that in order to ensure the safe operation of the rail transit network, the full-space intelligent perception inspection system was officially put into operation on Line 4. It is reported that the system integrates the two core technologies of low-altitude intelligent inspection and quantum precision measurement, which is the first of its kind in China.

The drone deployed on Hefei Rail Line 4 was successfully launched

In order to maximize the operational safety of the rail transit network and prevent illegal construction from affecting structural safety, Hefei Rail has been deeply engaged in low-altitude and quantum technology in recent years, and has pioneered a new model of full-space intelligent perception inspection system. "Simply put, it uses drones to monitor ground conditions in real time at low altitudes, and uses quantum precision measurement technology to monitor underground conditions." According to relevant persons in charge of the Hefei Rail Group, the low-altitude intelligent inspection system can use drones and intelligent AI technology to achieve analysis and early warning, automatically identify risk points such as large-scale construction machinery, vehicles, and illegal operations, and improve the safety management efficiency of rail protection areas. "Compared with traditional manual inspection methods, drones have the inherent advantages of 'running fast, standing high, and seeing far'. Coupled with the implantation of artificial intelligence algorithms, it can not only increase the inspection efficiency by 2 to 4 times, but also has the characteristics of strong mobility, high level of automation and low investment cost, which can greatly reduce manpower requirements and improve inspection quality."

Hefei Rail Safety Protection Zone Intelligent Perception Inspection Platform

In order to solve the problems of huge inspection costs and difficulty in real-time monitoring in the rail safety protection zone, Hefei Rail has innovatively applied the rail safety optical fiber intelligent early warning system. "This system can apply quantum precision measurement technology to the field of distributed optical fiber sensing, turning an ordinary optical fiber in the tunnel into an optical fiber with the ability to listen to sound and identify positions, achieving real-time monitoring and full regional coverage." The person in charge told reporters that this system not only overcomes the problems of huge traditional inspection costs, but also enables optical fibers to have the ability to intelligently identify intrusion signals. "The deep integration of the two systems can better respond to rail safety emergencies and add 'double insurance' to passenger safety."

The deep integration of the two systems gives full play to the advantages of the fiber optic early warning system's 24-hour uninterrupted monitoring and the low-altitude inspection system's ready-to-go and clear observation. The two complement each other and rely on each other to better respond to rail safety emergencies. It avoids the situation where the systems cannot form a joint force due to data isolation and each system works independently. Great progress has been made in the exploration of inspection technology, making the inspection mode of the rail transit system truly "sharp-eyed and sharp-eared".

(Reporter Zhu Xiaotong Tan Meiling)