Hong Kong scientists have invented a robot hand that uses electrical impulses produced by the muscles. Would be released at Christmas
. One can already see and talk to family and friends online. Now, scientists at the University
In a development that could add a new dimension to online data, experts have created a cybernetic hand that uses electrical impulses produced by the muscles to send hand movements through the computer users.
Today, the hand, which is connected to an electronic bracelet, one is able to perform basic movements such as grasping, greet and make the sign "V" peace and "O" okay.
However, scientists in charge of development said that with more investment in research and tuning technology someday could make a lot of movement.
may even be possible to make exact copies of the hand as a person to get a more real and personal experience, they added.
Yunhui Professor Liu, who heads the research team, said the robotic hand is capable of imitating almost instantly the original motion of the human hand and provide a tactile sensation.
cyber hand is now awaiting a patent and hopes to go to market to the Christmas season at a price of between 30 and 50 dollars for a hand-cuff and sensors. However, users must buy a couple to fully utilize the tactile experience on the Internet.
Liu's team introduced the device in an international technology exhibition in Hong Kong, held this week.
HOW IT WORKS
hand, according to Liu, works by using electrical impulses generated by the muscles that come into contact. These signals are recorded by an EMG sensor that is worn on the wrist of the arm of the person performing the movements. The computer receives the signals and uses software to analyze and calculate what muscle is used and the strength of each movement.
This information is then transmitted via Internet to the receiver's computer, where signals are converted into instructions for the robotic station.
"At this point, the function is not perfect and can not make an exact copy, in part because the robotic hand is different from the human in terms of degrees of freedom of movement you have," said Liu.
The specialist said there are some delays in processing and also mechanical problems, but believes it will be possible in the future more sophisticated movements.
"The main obstacle we have in the time is cost. Our project goal was to make a toy. We wanted to have a low cost, so there are restrictions on the amount of money we can spend, "said Liu.
"If you want more skills, it is possible, but you need more engines and therefore have to spend more money."
The prototypes have a basic design, but Liu said there are ongoing discussions with a manufacturer to create a coat of silicone rubber in which the temperature could be controlled to give a more natural look and feel, or have different sizes.
would also be possible to produce scanning a hand as a hand and asking the manufacturer to make a replica. "But that would be expensive," said Liu.
FAMILY AND SCIENTIFIC
The professor said that the original intent of the research team was to develop something that would help families stay connected.
"While they can show their affection through telephone communications, the physical sensation is better to express love. With the system, the elderly and their children and grandchildren could touch and hold hands and show affection Internet directly, "he said.
However, he said that the system could also have medical applications, by allowing patients who suffered a cerebrovascular accident (CVA) to carry out rehabilitation in their own homes.
"With the system, stroke patients can receive a manual physical therapy at home. The surface electromyography sensor can also help doctors monitor the progress of the recovery of a patient to constantly detect the level of muscle contraction. " Future
could also have applications for online data circuits.
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