It can glide at a speed of more than 10m/s on a 400-meter-long, 18-degree slope intermediate slope; it can flexibly avoid obstacles, and glide side by side through flag gates and human-computer interaction...
Six-legged ski robot designed and developed by Shanghai Jiaotong University The pictures in this article are all courtesy of Shanghai Jiao Tong University
Recently, the six-legged ski robot designed and developed by Shanghai Jiaotong University completed the primary road, intermediate road and co-skiing experiment in Shenyang, and passed the tests of stability control, intelligent perception, planning decision-making and other aspects.
The robot was developed by the foot robot research team led by Professor Gao Feng of Shanghai Jiaotong University and composed of the School of Mechanical and Power Engineering and the School of Electronic Information and Electrical Engineering of Shanghai Jiaotong University, and won the key special support of the national key research and development plan of the Ministry of Science and Technology "Science and Technology Winter Olympics".
According to reports, this is a six-legged robot using skiing, the four legs in the middle are divided into two groups, each two legs are fixed on a ski, used to control the position and posture of the skis, and the two legs on both sides are equipped with ski poles to imitate people and realize the function of the cane. Each ski has five degrees of freedom, and by controlling the posture of the board, you can achieve functions such as speed control, turning and braking.
Ski robots can not only ski at high speeds, but also avoid crowds and plan their own optimal routes. Tested on beginner and intermediate pistes, the robot proved to have agile cornering, braking capabilities and strong autonomous perception and planning capabilities. It can slide at high speed in the snow field, encounter obstacles and make sharp turns, continue to maintain its own healthy ski posture; in the process of sliding, it can complete the "flag gate" task in alpine skiing, achieve good speed and direction control, and have functions such as sliding, emergency stop, obstacle avoidance, and pole bypass.
Skiing requires a high level of stability and flexibility for people, and this robot can simulate real people skiing through wireless remote human-computer interaction control, walk through the crowd in a real snow field environment, and automatically start, coast, turn, and brake outdoor beginner and intermediate ski trails without human intervention. The technical difficulty of research and development of its control system can be imagined.
The reporter learned from Shanghai Jiaotong University that the research team has made innovative breakthroughs in the design of key algorithms such as robot performance control and perception planning after many scientific research and development, and has independently completed the research and development of key core technologies from institutional design, system framework, stability control to intelligent perception and independent planning, and finally made the ski robot integrate human-computer interaction, environmental perception, trajectory planning, intelligent decision-making and stability control.
The research team first conducted research on the design and manufacture of robot mechanisms and drivers, and established a "brain" for the robot - an intelligent system. This system includes dynamic balance stability control, intelligent perception and intelligent planning, through the organic integration of design intelligence and behavioral intelligence, so that the robot can analyze human skiing behavior data, imitate human skiing action, adapt to the environmental characteristics of outdoor snow surface, and achieve autonomous rapid and stable coasting.
In the design process, the research team controlled the robot height, body pitch angle, center of gravity front and rear position, left and right position of the center of gravity, left and right snowboard angles, left and right leg heights, left and right snowboard front and back positions on the ski machine in the form of manual remote control and autonomous planning, and completed the test of speed control and steering control. Among them, the maximum speed of manual remote control stable steering and coasting can reach 3.2 m/s, the maximum speed of self-planned uniform linear sliding can reach 5.17 m/s, and the maximum speed of stable steering and coasting can reach 2.45 m/s.
The R & D team imagined that after the Winter Olympics, this robot can also combine the current 5G, wireless network and other advanced technologies, through remote control, to achieve ski robots in the same field, to create a new entertainment mode of electric- machine -competition, and to create a new trend of entertainment with a full sense of science and technology for ski enthusiasts and teenagers. In the future, robots will also become an important participant in ice and snow sports, and can further exert their scientific and technological advantages, carry out patrols and rescue in alpine and ice and snow environments, help people avoid risks, and create a more comfortable and safe ice and snow experience environment.