August 17th news, using equipment that emits magnetic field frequencies to generate electrical waves that control the movement of the prosthesis, and then detect human bone marrow signals through the sensor system to connect the brain waves to the control system. This high-sensitivity magnetic sensor and powerful system will be used by users in medical research and nervous system applications, allowing some "special" people to control prosthetics just like their own hands. The brain wave prosthesis developed by the team led by Ph.D. Han Bicheng, a PhD student at the Harvard Brain Research Center, will try to allow the broken-arm rural teacher Ma Fuxing to "grow" his arm again. When Ma Fuxing was four months old, he unfortunately lost his arms and lived a life different from ordinary people for the next 59 years. In his mind, there is no longer the impression of using "hands", can brain wave prostheses work for him? Brainwave Prosthetics: The "impossible" of the past has now come true In fact, as early as the 1870s in the United Kingdom, a young man named Caton recorded "electric spark movement" on the brains of chimpanzees and dogs. Half a century later, in 1929, the German Berger recorded human brain waves and produced a brain electroencephalogram. Scientists found that the original brain wave is a very weak biological electricity, which is usually understood as electrical vibration of the brain, with a frequency between 1-30 times per second. Scientific research later found that brain wave acquisition is not difficult. Put a metal electrode on the scalp, add an amplifier, or implant microelectrodes into the skull. However, the human brain has about 86 billion neurons, so it will interfere with the brain waves emitted during activity. In addition, because the voltage changes caused by brain waves make the order of microvolts, they are very susceptible to interference, such as long hair, thick foundation, or even shaking the phone next to it. So today's brain wave research is still in its infancy, but scientists have never stopped studying brain waves. In 2007, a team from Brown University in Rhode Island, United States, implanted an electronic chip into a patient with high paraplegia. After training, the patient's mind can be cracked into a digital signal, and he can send instructions to the device to send and receive emails, play games, and so on. In 2015, doctors at the University of California in the United States designed a hat that must capture brain waves, and used computer programs to decipher brain waves, isolate the parts that control leg activity, and then send signals to allow the corresponding instruments to stimulate leg muscles and paralyze them. Five-year man "walks". In recent years, there has been continuous information on the use of brain waves to control prosthetics, and even a controllable mechanical prosthesis project abroad, Luka Arm, has achieved mass production after passing the production approval of the US Food and Drug Administration (FDA). This technology was presented in the second installment of the second season of "Wisdom" by Han Bicheng, a PhD student at the Harvard Brain Research Center, for a large audience. In the past nine years, Han Bicheng ’s team has studied brain wave technology, using artificial intelligence algorithms to identify weak brain wave signals, and translated into control awareness through recognition. "This technology can make people's brains stronger, and it can also help special people restore their daily behaviors." Lu Bai, who was present, said that there are two types of cells in the human body called excitable cells, and one type is the nerves of the brain. Yuan, the other type is muscle cells, and the two types of cells constitute the so-called bioelectric signal. Graphic-independent It is understood that the modular design of the brain wave prosthesis can ensure that each part can be purchased portablely and can be independently assembled, which greatly reduces the cost of purchase, thereby reducing the terminal price of the original price of five or six hundred thousand products to 1/10 . The signal acquisition quality of up to 8 channels can accurately identify the precise activities of the remaining muscle groups of the arm. The sampling rate is at least 1000 Hz, and the accuracy is up to about 10 times. It can also identify the single finger control with an accuracy rate of more than 90%. 10 hand movements. Taking technology as the starting point, "Venus" realized his "arms" dream Zhu Guangquan, the host of "Witty", asked in the show: "How to connect the human brain with external equipment?" Han Bicheng's answer is the brain wave acquisition scheme mentioned in the previous article. "In the past few years, researchers have developed medical-grade high-performance EEG detectors, which can be brought to the head to detect human electrical signals from the scalp and translated into control awareness, so that it can be achieved Move what you want. " In this episode, Han Bicheng brought two products, one for head-mounted brainwave reading and the other for brainwave prosthesis. The three electrode points built into the former head-mounted type collect brain waves, and then translate the data into visual attention values, enabling the hidden organs of the table to operate. The latter is displayed in the form of a mechanical arm to help some special people. Project inspector Ma Fuxing is one of these people. He is a respectable rural teacher. When he was four months old, because of an accident, the still-sold infant teacher Ma unfortunately lost both arms and lived a different life from ordinary people in the next 59 years. However, just like this, Teacher Ma taught 37 years at the Maer Primary School in Huidong Country, Huangzhong County, Qinghai Province. He used less than one arm to make more than 1 million words of lesson plans, and trained more than 800 children in Xiamal Village. Han Bicheng introduced that the brain wave prosthesis is divided into two parts. The former is a sophisticated sensor instrument that detects teacher Ma ’s brain wave signal; the latter is an intelligent prosthesis, which is completely consistent with human hands regardless of strength. Through training and learning, let Teacher Ma imagine some actions and let the algorithm recognize. This kind of training traditionally takes about half a month to a month, but in the "Witty" scene, the process is only a dozen minutes. However, in these ten minutes, with the assistance of the staff, Teacher Ma learned to open his hands, form a "fist", control his strength, etc., which caused cheers and applause from the audience. After obtaining the "hands", the first move of Teacher Ma was to shake hands with every guest present. "I used to have no hands, and to say hello to others is to hug. Being able to shake hands with others is my biggest wish." When Teacher Ma folded his five fingers one by one and felt the smell of shaking hands for the first time in his life, the smile on his face made everyone present moved deeply. Although it still requires a certain training process, under the guidance of Han Bicheng, Teacher Ma tried to slowly get a book on the bookcase with the brain wave prosthesis. This is the test of the program group on the brain wave prosthesis, that is, whether it can help the user to complete the daily grasping movement. Can Teacher Ma succeed in getting this book? Guest Han Xue told a simple but profound meaning on the show: "Science really gives the teacher a pair of hands. At this moment, I believe that every child must have planted a science seed in the heart. In the future After 10 years and 20 years, these children will definitely be willing to benefit more people on the path of science. " According to data from a census in 2006, the total number of people with various types of disabilities in China accounted for 6.34% of the country's total population, of which the number of persons with physical disabilities was the largest, accounting for 29.07% of the total number of people with disabilities. In online news, although these special people can often be seen to have a positive and optimistic attitude, it is inevitable that due to physical factors, they will not get their due "complete life." The essence of the brain wave prosthesis is to allow these special people to be the same as normal. At the same time, it is understood that the future market size of brainwaves will reach 2 trillion US dollars. However, since this field is still in the early research stage, some target groups are not yet available. As Han Bicheng said at the end of the program, the simple movements that normal people can subconsciously do are actually very eager for them, and "a simple little busy" will even cause this part of the crowd The scar is faintly "painful". Sabinen, the guest of the "Witty" program, said at the end: "So now young people are discussing what is professional happiness. I think as a professional scientific researcher, the greatest happiness The reason is that your research results have helped one person realize his dream dream. I think this is the highest reward for Dr. Han and his team. " There will always be dreams. Teacher Ma teaches the children, which is to plant the seeds of dreams in the hearts of the children; and these children will also dream and enter a wider world. The author is even thinking that the ideas of many scientists are actually very simple. They are simply realizing human dreams. Therefore, the significance of the brainwave prosthetic project selected as the pioneer of "Wisdom" is not only that it led the audience to see the cool future, but also let more people have a new perspective on the profession of scientists. Elevator Frequency Inverter,Vfd Inverter,Single Phase Vfd,High Frequency Inverter MAURER TECHNOLOGIES CO., LTD. , https://www.maurer-elevator.com