Floor-Volleyball Motion Feedback System for Visually Impaired Players
Floor-Volleyball Motion Feedback System for Visually Impaired Players
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适用于视障运动员的地板排球运动反馈系统
DOI：
10.1145/3436756.3437020
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Hisayuki Tatsumi
中科院分区：
文献类型：
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作者：
Makoto Kobayashi;Hisayuki Tatsumi
在日本，地板排球是包括盲人在内的视障人士常见的运动之一。它的历史始于20世纪60年代，盲人特殊学校的年轻学生大多在体育课上或俱乐部活动中有过这项运动的经历。然而，由于运动员的视觉障碍，目前还没有一种合适的方法来识别他们自己的动作。因此，本研究对自由式排球运动员的动作进行感知，并研制出一种显示动作的触觉装置。使用三维运动捕捉系统，收集并分析了四名视障运动员的数据。结果表明，每个运动员都有各自的动作特点。在后摆速度上观察到明显的差异。为了向盲人玩家显示这种差异，成功地开发了一种小型无线触觉显示装置。它配备了384个可刷新的触觉引脚，这些引脚排列成36×12个。这些引脚由与普通盲文显示器相同的压电致动器驱动。该设备的主要特点是控制器配备了ESP-WRoom-02 Wi-Fi模块和AAA电池。该设备具有完美的无线特性，适用于体育领域。
Floor-volleyball is one of the common sports for visually impaired people, including the blind in Japan. Its history started from the 1960s and most of young students in the special schools for the blind have experience of this sport in a class of physical education or a club activity. However, there is not an appropriate way to recognize motions of players by their own, because of their visual impairments. Therefore, sensing the motion of the Floor-volleyball player and developing a tactile device which shows the motion was carried out in this research. Using a three-dimensional motion capture system, four visually impaired players’ data were collected and analyzed. The results showed that each player has each character of the motion. The significant difference was observed in the back-swing speed. To display the difference to the blind players, a small wireless tactile display device was successfully developed. It equips 384 refreshable tactile pins which are arranged in 36 by 12. These pins are driven by piezo actuators same as the common braille display. The main feature of the device is that the controller equips ESP-WROOM-02 Wi-Fi module and AAA batteries. The device is perfectly wireless and suitable for the physical education field.