Ten years ago, a robot "Walker One" independently developed by a Chinese scientific research team, traveled 54 hours and 134.03 kilometers in a continuous journey with an energy consumption of 0.8 kWh per hour, and won the Guinness World Record for the longest distance of foot-type robots, which has not been broken so far. After ten years of hard work, the "Walker 2" is about to challenge the world's first personal robot half marathon to start in Yizhuang, Beijing.

　　What is the comparison of robot marathon? What kind of performance does a robot need? What kind of optimization and upgrading did this "athlete" make before participating in the competition? The reporter visited the robot "Mysterious Runner" - "Walker 2" located in the Science and Technology Park of Shanghai University of Technology.

　　Reporter: Sun Qing and Li Haiwei

　　Photographed by: Jin Shanmei Zhu Xinzhi

　　Production of Xinhua News Agency Audio and Video Department

[Editor in charge: Ling Jiwei]