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The author:(作者)qqpublished in(发表于) 2014/6/20 8:47:39 Chinese Academy of Sciences has successfully developed the “iron man“ suit， can punch through walls
China Changzhou network reported that the 2014 Brazil World Cup opening game on, a man suffering from paraplegia Brazil teenager wearing a "exoskeleton" robot, which opened its first goal of this World Cup, thus becoming the focus of world attention. Changzhou Institute of advanced manufacturing technology, CAs, there is a high tech mechanical exoskeleton has been developed and is now in its commissioning phase.
Legs have feet "steel coat", through the motor power
In March, the Institute of Changzhou's advanced research project Director, associate research fellow Chen Jian and his friends aim exoskeleton robot system was developed, named EXOP-1 (1th cognitive exoskeleton robot) exoskeleton robot. Seeing them yesterday morning in advanced, these "$literal" young people are busy with final commissioning of the robot.
Hanging in the exoskeleton of the advanced research, it had feet and legs, and man's lower body is very similar to the body all made from aircraft aluminium to create, in the body at the waist and legs with 9 fixed, respectively, and 22 sensors, 6 drives and a controller, weighs about 20 kg.
Chen Jian introduced, put on a layer of "steel coat", just like a computer "machine armor", power will be greatly enhanced. "Each leg there are 3 Motors, corresponding to each motor leg hip, knee and ankle joints of the human body, through the motor, reaching to the power of each joint. "In the system on the side of the knee, the reporters saw 5 stalls were also set, worn of 1.7 to 1.8 metres in height can be adjusted according to the height to, and the shoes are custom-made, 4 sensors on the bottom of each foot.
An exoskeleton system costing up to 300,000 yuan. From March the project, to set up a body, control, sensor, and Jian Chen and his team have overcome to reduce weight robot, motor problems such as how to obtain debug campaign intentions, trial later this month is expected to complete the sample.
With a helmet, paraplegic intentions available standing, walking
Wearing a layer of "steel coat", action can freely? Chen Jian gave us a demo.
With help from the staff, Chen Jian fixed on the robot's "feet", and then the calves, thighs and lower back are fixed together with robots, after the switch is opened, ready to walk. Chen Jian gave a leg lift, robots will soon perceive the action, with almost the same angle of flexion and extension steps.
According to Chen Jian introduced, drive mode, developed exoskeleton robot in the world at present are hydraulically actuated, pneumatic driven and motor-driven, and they created was a third. "On like I just do of action, people to lift leg walk Shi, will produced a movement trend, this signal conveys to foot late of sensor, reaction to size leg muscle, again conveys to controller and drive, then automatically set joint of rotating angle, system itself through detection pressure changes and human attitude changes, interpretation movement intent, promoted human walking, reached phase consistent of action, this is robot of work principle. ”
And during the World Cup debut of an exoskeleton robot system, developed by Berkeley, California. Assistant Professor Dr Wang Yucheng to advanced analysis, Brazil the working principle of the exoskeleton, and their study is different.
With a helmet, monitor paraplegic brain signals, signals will be transmitted to the exoskeleton robot, mounted an operation system based on a patient's mind in order to achieve standing, walking. "However, this method of signaling, there are a lot of instability, because the recognition of EEG is limited. ”
To assist weight 70 kg of weights, it can punch through walls to save lives
Exoskeleton robot concept was first in the late 60 's by the United States company suggested that the 70 's of last century, United States Massachusetts Institute of technology also began to study project. After 2000, the exoskeleton system developed at the University of California, Berkeley, United States military spotted began to use the military. Europe after steam exoskeletons, robotic and Japan mainly to rehabilitation exoskeleton Robotics have come out, China started late.
"In the United States, by varying function of exoskeleton robot into a multifunctional system of auxiliary functions of the human body. "Chen Jian told reporters, when the use of exoskeletons are divided into two categories: one is the military, dominated by weight, another is commercial, systemic to highlight function.
In fact, in the civilian sphere, exoskeleton robot can also be widely used in mountaineering, tourism, fire prevention, disaster relief and so on need to be burdened by the use of materials, equipment and vehicles could not.
Chen Jian development team, which belongs to the power load of robots. Chen Jian than an image concept: If you weight 200 pounds it, wearing exoskeleton robot, it becomes easy. "By robot assisted 80% weight. ”
EXOP-1 plans to bear weight 70 kg, in which power is expected to reach more than 70%, there are now many fire police intention to have reservations. "We designed the exoskeletons are for normal wear, can be used in fire-fighting on, helping firefighters loaded fire-fighting supplies. ”
At present, the team developed second generation exoskeleton robot cognition, compared to the first generation, from systems to power efficiency, there will be more room for improvement. "Burning high-rise buildings, and wore exoskeletons ' iron Spider-man, ' to put the fire out, or on the ground, punched through the wall to save is not possible. ”
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Exoskeleton robot
Is essentially a wearable robot exoskeleton robot, it adds human intelligence in conjunction with external mechanical device of mechanical energy, can give people extra motivation or ability. Due to its location and role and biology of bones are very similar, so called human exoskeletons.
Read on: applications still have difficulties
It is understood that although recent exoskeleton for a dozen years has made great progress, but in reality there are many problems to be solved.
Currently human outside bones main through collection muscle signals and force feedback of method to gets wear who of movement intent, muscle signals collection of method has is strictly of outside environment limit, once signal collection of place occurred tiny of changes (as sweat,) on will interference signal of collection; and force feedback method has essentially of lag, dang wear who made fast of movement or high difficulty of action Shi on will has hinder sense.
Human exoskeleton through bundled with wearers connected together, and in this way has a lot of defects, such as body binding part will generated by tape bondage issues such as poor blood circulation; bundled shape deformation due to muscular contractions and stretching will have a great influence on the positioning accuracy of human exoskeletons.
Moreover, human exoskeletons using portable energy only to the system to 2-9 hours of battery life, the development of new portable energy will be the need to address the research problem.
In addition, due to man's physical body has limits, each joint range of motion limitations in human exoskeleton designed, therefore, to prevent damage to the wearer.
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