Avoiding obstacles flexibly, passing flag gates with a strong posture, sliding side by side with human-computer interaction... I believe that most people have never experienced skiing with robots. Recently, the six-legged ski robot designed and developed by Shanghai Jiao Tong University has completed the primary track, intermediate track and co-skiing experiments with people, and passed the tests of stability control, intelligent perception, planning and decision-making and other aspects. This ski robot was developed under the call of the "Science and Technology Winter Olympics", led by Professor Gao Feng of Shanghai Jiaotong University, and a footed robot research team composed of the School of Mechanical and Power Engineering and the School of Electronic Information and Electrical Engineering of Shanghai Jiaotong University. The Ministry of National Key Research and Development Program "Science and Technology Winter Olympics" key special support.

In this test, the ski robot glides at a speed of more than 10m/s on an intermediate snow track with a length of 400 meters and a slope of 18 degrees, and uses technologies such as intelligent perception and braking control to complete the robot's racing, turning, planning routes, and evasion. The experimental subjects such as obstacles and human-robot interaction, in addition to being flexible and graceful in posture, can be controlled by wireless remote human-computer interaction to pass through skiers in a real skiing environment, allowing everyone to experience the fun of skiing with robots.

Not only can you ski at high speed, but you can also avoid crowds and plan your own optimal route. The test of the ski robot in the primary and intermediate snow trails has proved that it has agile turning, braking ability and strong autonomous perception and planning ability. It can glide at high speed in the snow field, turn sharply when encountering obstacles, continue to maintain its vigorous skiing posture, and can also complete the task of "crossing the flag gate" in alpine skiing during the sliding process, which can achieve good skiing. Speed and direction control, with functions such as taxiing, emergency stop, obstacle avoidance, and rod winding.

According to reports, the ski robot developed by the foot robot team of Shanghai Jiao Tong University is a hexapod robot that uses double-board skis. The four legs in the middle are divided into two groups, each of which is fixed on a ski to control the position and posture of the ski. The two legs on both sides are respectively equipped with ski poles to imitate people and realize the function of the stick. . Each snowboard has five degrees of freedom, and the functions of speed control, turning and braking can be realized by controlling the posture of the snowboard.

On the ski resort tested this time, the six-legged ski robot completed high-speed skiing and obstacle avoidance safety control on the primary and intermediate ski trails. Its sliding speed, turning skills, obstacle avoidance ability, as well as stability, safety, Reliability has achieved impressive results.

Walk through crowds in a real snowfield environment to simulate real skiing

Skiing has extremely high requirements on human stability and flexibility. Designing robots and developing control systems to participate in skiing activities is not a small challenge. The ski robot tested this time was independently developed by Shanghai Jiaotong University. After many scientific researches, the research team has made innovative breakthroughs in the design of key algorithms such as robot performance control and perception planning. From the research and development of key core technologies in a series of links such as intelligent perception and autonomous planning, the ski robot finally integrates human-computer interaction, environmental perception, trajectory planning, intelligent decision-making and stable control.

The research team first conducted research on the design and manufacture of the robot mechanism and drive, 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, the robot can analyze human skiing behavior data, imitate human skiing actions, and adapt to the environmental characteristics of outdoor snow surfaces. Glide quickly and steadily on your own.
During the design process, the research team used manual remote control and autonomous planning to determine the height, body pitch angle, front and rear position of the center of gravity, left and right positions of the center of gravity, the angle between the left and right skis, the height of the left and right legs, and the front and rear positions of the left and right snowboards on the ski machine. Control, complete the test of speed control and steering control. Among them, the maximum speed of manual remote-controlled stable steering and taxiing can reach 3.2 m/s; the highest speed of self-planned uniform straight-line taxiing can reach 5.17 m/s, and the maximum speed of stable steering and taxiing can reach 2.45 m/s.

It is the collection of these key technologies that enables this ski robot to pass through the ski crowd in a real environment through wireless remote human-computer interaction control, and complete high-speed skiing and obstacle avoidance safety control on primary and intermediate ski trails. It can also automatically start, slide, turn, and brake on outdoor beginner and intermediate snow trails without human intervention.

Human-machine integration adds imagination to the post-Winter Olympics era
The ski robot is not only an intuitive embodiment of the "Technology Winter Olympics", but also provides unlimited imagination for the post-Winter Olympics era with the concept of "human-machine integration". The research team said, "After the Winter Olympics, this robot can also combine the current advanced technologies such as 5G and wireless networks, through remote control, to realize the competition of ski robots on the same field, creating a new entertainment mode of electric-machine-competition, for skiing. Enthusiasts and teenagers create a new trend of entertainment with a strong sense of technology."

In the future, robots will also become an important participant in ice and snow sports, giving full play to their scientific and technological advantages to carry out patrols and rescue in high mountains and ice and snow environments, helping people avoid risks and creating a comfortable and safe ice and snow experience environment. The characteristics of "human-machine integration" will also provide infinite possibilities for the expansion of future competition models and the new integration of technology and entertainment.

Four-legged Robot Dog;

Robot dog;

inspection Robot dog