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KAIST Introduces a Wearable Robot that Walks and Puts itself on to Disabled Persons
< Photo 1. WalkON Suit F1 - walking demonstration > KAIST researchers have unveiled a new wearable robot developed for completely paralyzed persons that can walk to them so that the user can wear it right out of their wheelchairs without the help from others. Also, it was announced that Professor Kyoungchul Kong's team from KAIST will be participating in the wearable robot category of the 3rd Cybathlon, which is being held four years after the team’s gold medal win in 2020. KAIST (President Kwang-Hyung Lee) announced this new version of the wearable robot for paraplegic people, WalkON Suit F1, by Professor Kyoungchul Kong (CEO and founder of Angel Robotics) of KAIST Department of Mechanical Engineering on the 24th of October. < Photo 2. (From left) Professor Kyoungchul Kong of the Department of Mechanical Engineering, Researcher Seunghwan Kim (the competing athlete), and PhD candidate Jeongsu Park (the leader of Team KAIST) > WalkON Suit is a wearable robot for people suffering with paraplegic disabilities that the research team has been continuously researching since 2015. This robot targets to assist persons with American Spinal Injury Association (ASIA) Impairment Scale – A (complete paralysis) grade injury, the most severe level of paraplegia. Therefore, its development purpose is different from that of other rehabilitation therapy and muscle strength assisting robots currently being supplied nationally by Angel Robotics. Professor Kong's research team first announced WalkON Suit 1 in 2016, and then introduced WalkON Suit 4 in 2020, increasing the walking speed to 3.2 km/h, achieving the normal walking speed of people with no disabilities. In addition, it demonstrated the ability to pass through obstacles such as narrow passages, doors, and stairs that can be encountered in daily life. However, it had the same fundamental problem all wearable robots have, which is that they require the help of others to wear the robot. While you can walk without help from others once you are wearing the robot, you needed someone's help to put it on to begin with. The newly released WalkON Suit F1 presented a technical solution to this fundamental problem. It applied a frontal-docking method instead of a rear-sitting method so that you can wear the robot right away without getting out of the wheelchair and into the robot, which would require help from others mid-transition. < Photo 3. WalkON Suit F1 - suiting-up demonstration > In addition, before wearing the robot, it can walk on its own like a humanoid robot and approaches the user. It is also implemented a function that actively controls the center of its weight against the pull of gravity so that it maintains balance without falling over even if the user pushes the robot otherwise. The outer design of the WalkON Suit F1, which crosses between a humanoid and a wearable robot, was done by Professor Hyunjoon Park of the Department of Industrial Design at KAIST. The original function of the wearable robot has also been greatly improved. The performance of the balance control was improved to allow the free use of both hands in upright state, as well as the freedom to take several steps without a cane. Technological advancements at the components level are also noteworthy. Through close collaboration with Angel Robotics, all core components of the robot, such as the motor, reducer, motor driver, and main circuit, have been domestically produced. The output density of the motor and reducer modules has been improved by about two folds (based on power per weight) compared to the research team's existing technology, and the control performance of the motor driver has been improved by about three times (based on frequency response speed) compared to the best overseas technology. In particular, the embedded software technology of the motor driver has been significantly improved so that advanced motion control algorithms can be stably implemented without using expensive higher-level controllers. In addition, visual recognition system for obstacle detection and an AI board for neural network application have been installed. < Figure 1. WalkON Suit F1 shape and main specifications > Professor Kong explained, “WalkON Suit is the culmination of wearable robot technology for the disabled,” and added, “The numerous components, control, and module technologies derived from WalkON Suit are setting the standard for the entire wearable robot industry.” Professor Kong’s research team revealed WalkON Suit F1 and announced that they will be participating in the 3rd Cybathlon, which is being held after four years since the last event. In this competition, which will be held on October 27, Professor Kong’s lab, the Exo Lab will be participating with Jeongsu Park, a Ph.D. Student, as the leader and Seunghwan Kim, the lab’s staff researcher with complete paralysis, as the competing athlete. The difficulty of the missions in this competition has been significantly increased compared to the previous competition, and the number of missions has increased from six to ten. Some missions have been criticized for being overly challenging, going beyond the level that can be encountered in everyday life. < Photo 4. Cybathlon stadium (Angel Robotics Asia Hub) > Regarding this, the team leader Jeongsu Park expressed his ambition, saying, “Since we already won first place in the previous competition, our goal in this competition is to show the technological gap rather than competing for rankings.” The Cybathlon is a cyborg Olympics held every four years in Switzerland. This competition will be held in a hybrid format, with some participants taking part in Switzerland while others broadcasting live from stadiums in their own country on October 27. Professor Kong's research team will be participating via live broadcast from the competition facilities installed in Angel Robotics' Advanced Research Institute (Planet Daejeon). < Photo 5. Photo of Team KAIST participating in Cybathlon 2024 > The demonstration video of WalkON Suit F1 can be viewed through the link below. Link: https://www.youtube.com/@KyoungchulKong_EXO-Lab
2024.10.24
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Late Dr. Ryu Geun Chul's Achievements and Generous Contributions
First Doctor in the field of Korean Traditional Medicine The late Dr. Ryu was born in 1926 and is the father figure of Korea’s Traditional Medicine and is its First Doctor (1976 Kyung Hee University), and was the vice-professor of Kyung Hee University of Medicine, Vice-Director of Kyung Hee Institute of Korean Traditional Medicine, and was the first chairman of the Association of Korea Oriental Medicine. He developed the painless acupuncture administering device for the first time in Korea in 1962, and succeeded in anesthetizing a patient for cesarean procedure using acupuncture in 1972. He even was the first to receive a medical engineering doctorate degree from the Moscow National Engineering School in April of 1996 and developed a stroke rehabilitation machine. Korea’s Most Generous Donor Dr. Ryu surprised the world by donating 57.8billion Won worth of real estate to KAIST in August of 2008. Dr. Ryu revealed that his reason for donating such a huge sum to KAIST was due to its focused students giving him the belief that the future of Korea is at KAIST and that the development of science and technology is necessary for Korea to develop into a world class nation and KAIST is the institute most suitable to lead Korea in the field. Dr. Ryu lived on KAIST campus after donating his entire fortune and even established ‘KAIST scholars and spacemen health research center’ and ‘Dr. Ryu Health Clinic’ as he also wanted to donate his knowledge. Even when he was a professor at Moscow National Engineering University in the late 1990s he carried out free medical work throughout Korea and in recognition of his devoted work, he was named honorary citizen from Chun Ahn city, San Chung city, and DaeJeon city. In 2007 he donated 450million Won to Cheon Dong Elementary School in Chun Ahn city to build a gymnasium and an indoor golf practice range. Role as Science and Technology Public Relations Officer Dr. Ryu volunteered to numerous lectures and interviews after donation to advertise science and technology. His belief that the development of science and technology is necessary for Korea’s development was the driving force behind his efforts at increasing interest and support for the field of science and technology. In addition, through interviews with MBC, KBS, SBS, KTV, Joong Ang Newspapers, Dong Ah Newspaper and other media mediums, Dr. Ryu improved the public perception on donations whilst increasing the pride of scientists and researchers by highlighting their importance and the importance of science and technology. In recognition of Dr. Ryu’s efforts, he received the 43rd Science Day Science and Technology Creation Award, 2010 MBC Social Service Special Award, and 2010 ‘Proud Chung Cheong Citizen’ Award.
2011.03.22
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