Mechanical Structure - This is a three degree-of-freedom remote rehabilitative robot developed to facilitate stroke patients or disabled people by exercising their upper limbs.
This robot has won the Gold Medal in the Tenth National "Challenge Cup" Competition of Undergraduate's Science and Technology Works in 2007. This competition is also praised as the Olympics of academic field in China.
Circuit Design - The circuit design accomplishes four training modes for our robot: positive, assistant, active and resistant mode.
Take assistant and resistant mode as an example. The assistant mode is suitable for the patients who have some movement perception. The robot will assist them by increasing the output torque of the driver.
The resistant mode is suitable for the patients who want a further training to improve their muscle strength. The patients need to overcome the resistant set by the robot.
Human-computer Interface - My work was mainly focused on the design and development of a friendly human-computer interface. This interface was based on the virtual reality development platform of Open Graphics Library. We adopted OpenGL to offer the stroke patients a joyful virtual rehabilitative training environment. The patients can exercise their upper limbs just by playing the games we developed for them, which makes the training more interested and attractive.
Games - This is a “ping-pong†game developed for the patients. By move the mechanical arm of the rehabilitative robot, the patients can change the position of the bat in the computer screen to try to rebound the ball towards the bricks in the opposite side. Once the ball hits the brick, the brick will disappear. The patients will win the game if all the bricks we set disappear in the end. And for different patients, the doctor will set different degree of difficulty for the game.
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