Science transforms Great Wall patrol into precision mission
- Posted on August 26, 2025
- By The China Daily
- 1 Views
Science transforms Great Wall patrol into precision mission
High above the ancient rammed-earth walls of Heyang Fortress in Shanyin county, Shuozhou, Shanxi province, a drone hovers, its high-resolution camera and infrared sensors scanning the terrain below. On the ground, Zheng Yuan, 35, monitors the live feed on his tablet.
