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目前已有的手部运动跟踪系统大多在一定程度上限制了人体运动自由.基于此,提出一种无线、可穿戴、无障碍的腕关节、指关节运动跟踪系统.在人体每个手指甲上粘贴一轻小永磁体,用以产生标示腕关节、指关节运动的信号;若干磁传感器置于手腕处的电子腕带上,作为标示信号(磁信号)检测器.当腕关节、指关节运动时,永磁体在各传感器所在位置处的合成磁场发生变化,传感器对该磁场信号进行测量,所检测到的磁场信号送入手部姿势估计器,估计器基于系统数学模型计算手部姿势,从而实现对手部运动的跟踪.
At present, most hand motion tracking systems restrict the freedom of human movement to a certain extent.Therefore, a wireless, wearable and barrier-free wrist joint and finger joint tracking system is proposed. Paste a light and small permanent magnet, used to generate a signal indicating the wrist, refers to the movement of the joints; a number of magnetic sensors placed on the wrist of the electronic wrist strap, as a marker signal (magnetic signal) detector .When the wrist, , The magnetic field of the permanent magnet at the position of each sensor changes. The sensor measures the magnetic field signal, and the detected magnetic field signal is sent to the hand posture estimator. The estimator calculates the hand posture based on the mathematical model of the system to achieve Tracking of hand movements.