An operating status of a motor in a drive unit is analyzed to extend the life of the motor. A wearable motion assistive device 1 includes a shoulder joint mechanism 5 and an elbow joint mechanism 6 for aiding a movement of the shoulder joint and the elbow joint, and a control unit 100 having a control circuit for controlling drive units 11 for the shoulder and elbow joint mechanisms 5 and 6. The control unit 100 controls the drive units 11 based on a physical quantity and a biosignal detected by an angle sensor, a torque sensor, and a biosignal detecting sensor. A controller in the drive unit 11 includes a motor monitoring unit for monitoring an operational status of the motor, and a motor control unit for limiting a drive signal supplied to the motor based on a monitoring result provided by the motor monitoring unit, in order to prevent an overload state of the motor.

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With recent technological advances it has become possible to develop advanced artificial limbs for people with disabilities. This report gives a brief history of the field of Rehabilitation Robotics, and then reviews eight currently produced (either experimentally or commercially) robotic devices designed to assist patients with limb loss or in need of skeletal-muscular assistance. After detailing the use and operation of each device, this report assesses each device on the basis of eight criteria: cost, accessibility, maintainability, training, adaptability, safety, environmental concerns and technological possibility. Each device was given a ranking based on those criteria, and on the basis of those rankings, predictions were made as which technologies are most successful today and most likely to be the basis of future development. This report concludes that the technology contained in the I-Limb is the most likely to be enhanced and further developed.

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Создан лабораторный образец смартлинка. Это многоканальное оптоволоконное соединение, способное автоматически без юстировки восстанавливать разорванные оптические цепи. Следующий этап – сделать это соединение двунаправленным, что возможно с помощью новой технологии разделения оптических сигналов.

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This paper presents the design of ABLE, an anthropomorphic upper limb exoske-leton integrally actuated by highly reversible ball-screw and cable (SCS standing for Screw-and-Cable-System) allowing true joint torque control without force sensor. Their unique kinematics allows their integration in the structure thanks to dedicated mechanical innovations such as the shoulder articulation and the forearm-wrist. The result is an anthropomorphic, lightweight, open architecture which avoids imprisoning the human limb. Applicative projects are briefly presented in: medical rehabilitation, teleoperation and haptics (VR).

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Problem statement: Human arm movement is widely studied nowadays. Some movements of arm are performed frequently in everyday life. Devices that can record the path of movement are important in studying human arm gesture. Approach: This project was performed the five degree-offreedom exoskeleton that was designed and constructed to observe position and orientation values of various movement in x-y-z coordinates of human arm. All joints of the exoskeleton were attached with potentiometers for tracking a human arm trajectory. A dedicated computer with a software application, LabVIEW, obtained the data from arm movement and translated to the end effector coordinate. A calibration method for the exoskeleton was proposed for a particular path, a circle. A value correction for the chosen path was introduced in this calibration process and error of root mean square was used as performance index to measure radial error and geometric error of the exoskeleton. Results: Experiments with a human arm for executing repetitive tasks were performed to study. There were two sets of experiments. With correction factor applied to both experiments, the average Error of Root Mean Square (ERMS) reduced drastically. Conclusion: With the correction factor, this device could use to record particaular movement of human’s arm with small error.

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