Three drones circled the Jinan Yellow River Bridge on June 23 in Jinan,capital of Shandong Province,inspecting the segment of the Beijing-Shanghai High-Speed Railway(BSHSR)passing through the city.
"New technologies such as 5G,big data,BeiDou navigation and satellite remote sens-ing are applied in operation management,"said Yang Huaizhi,Director of the department for equipment safety at Beijing-Shanghai High-Speed Railway Co.Ltd.(BSHSR Co.).