Development of a wireless character-Input interface controlled by Laplacian electromyographic activity

开发由拉普拉斯肌电活动控制的无线字符输入接口

• 批准号: 16091208
• 负责人: NOSHIRO Makoto
• 金额: $ 7.81万
• 依托单位: Kitasato University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16091208/
• 关键词: assistive tech nology; electronic device; elecromyography; Laplacian electrode; human interface; low-power wireless communication; 二次障害; インタフェース; 計算機入力; 無拘束計測; ラプラシアン電極

We have developed a wireless character-input interface by combining a compact wireless electrode unit, an electromyogram (EMG)-click converter circuit and character-input software. Experiments for evaluation of the interface showed that characters could be input stably as desired by contraction of (a) the masseter muscle of the cheek, (b) the trapezius muscle of the neck, (c) the anterior tibial muscle of the right crus, or (d) the flexor carpi ulnaris muscle of the right forearm. We also confirmed that the mean integrated EMG signal (IEMG) during the character-input task was significantly decreased in seven of eight subjects when the Laplacian EMG was used as the input signal of the interface, compared with the IEMG obtained when the conventional EMG was used. The developed interface appears applicable to persons with physical disabilities, because it can utilize many sites for the Laplacian EMG measurement, hence reducing the risk of secondary disability of the muscles at these sites.A method has been proposed for sensing the surface electromyogram (sEMG) through thin cloth inserted between the electrodes and the skin of the subject. The method is based on capacitive coupling involving the electrodes, the cloth, and the skin. A pilot device using this method was assembled and evaluated to explore the feasibility of this approach. The experimental results showed that the sEMG obtained in this way was comparable and synchronized with the conventionally obtained sEMG, although its amplitude and S/N were reduced. Since the proposed method eliminates discomfort due to conventional electrode-to-skin coupling, it shows promise for use in human-machine interfaces such as Human Adaptive Mechatronics (HAM).

我们通过结合紧凑的无线电极单元、肌电（EMG）点击转换器电路和字符输入软件开发了无线字符输入接口。评价该接口的实验表明，通过收缩（a）脸颊的咬肌，（B）颈部的肌，（c）右前臂的胫前肌，或（d）右前臂的尺侧腕屈肌，可以稳定地输入所需的字符。我们还证实，平均积分肌电信号（IEMG）在字符输入任务中显着下降时，拉普拉斯肌电作为输入信号的接口，与传统的肌电时得到的IEMG相比，在7个8个科目。该接口可利用人体多个部位进行拉普拉斯肌电图测量，降低了这些部位肌肉继发性残疾的风险，适用于肢体残疾人。提出了一种通过在电极与被测者皮肤之间插入薄布来检测表面肌电图的方法。该方法是基于电容耦合，涉及电极，布，和皮肤。组装并评估了使用该方法的试验装置，以探索该方法的可行性。实验结果表明，用这种方法获得的表面肌电信号与传统方法获得的表面肌电信号具有可比性和同步性，但其幅度和信噪比有所降低。由于所提出的方法消除了由于传统的电极到皮肤的耦合的不适，它显示出用于人机接口，如人类自适应机电一体化（HAM）的承诺。

项目成果

布を介した電極からの容量性結合に基づく心電図導出

基于电极通过布料电容耦合的心电图推导

• 发表时间: 2004
• 期刊: 電気学会論文誌C Vol. 124
• 作者: 植野彰規;内川義則;野城真理
• 通讯作者: 野城真理

A System for Detecting Electrocardiographic Potential through Underwear Worn by an Infant from Its Dorsal Surface

• DOI: 10.1007/978-3-540-36841-0_137
• 发表时间: 2007
• 作者: A. Ueno;Y. Akabane;A. Mizuta;S. Kataoka;H. Hoshino;Y. Ishiyama

Laplacian EMGを用いた生体信号インタフェースのための基礎的検討

使用拉普拉斯肌电图进行生物信号接口的基础研究

• 发表时间: 2005
• 期刊: 生体医工学(第44回日本生体医工学会大会論文集) Vol. 43, Suppl. 1
• 作者: 植野彰規;内川義則;野城真理
• 通讯作者: 野城真理

布を介したLaplacian EMGの容量性計測-ヒューマンインタフェースへの応用を目指して-

通过布料进行拉普拉斯肌电图电容式测量 - 旨在应用于人机界面 -

• 发表时间: 2007
• 期刊: 第21回生体・生理工学シンポジウム論文集
• 作者: 植野 彰規;山 芳寛;宮澤 健二;野城 真理
• 通讯作者: 野城 真理

Development and evaluation of a wireless interface for inputting characters using Laplacian EMG

使用拉普拉斯肌电图输入字符的无线接口的开发和评估

• 发表时间: 2006
• 期刊: Proceedings of 28^<th> Annual International Conference of IEEE EMBS (CD-ROM)
• 作者: K. Miyazawa;A. Ueno. H. Mori;H. Hoshino;M. Noshiro
• 通讯作者: M. Noshiro