- 學位論文
結合藍芽低功耗通訊的足底壓/剪力感測陣列
Plantar Pressure/Shear Sensor Array with Bluetooth Low Energy
摘要
本研究主旨在製作一套低成本、低功耗且方便使用的足底壓/剪感測器。隨著科技的進步，硬式的電子產品在攜帶上較不便利，為了使電子產品易於攜帶，故軟性電子技術讓電子產品可以進行一定程度的彎折或捲曲，並在整個電子產品使用過程中仍可正常運作，全球已有諸多廠商均已投入研發。 足底壓/剪力陣列感測器放置於鞋墊底部，讓使用者穿帶足底壓/剪力感測器並行走，當鞋底接觸到地面時，感測器內感測單元接收到不同的壓力，再利用4個為一組的電容式感測元件排列方式去感測剪力方向。而電路方面的微處理器將電容類比訊號轉換成數位訊號資料，再利用藍芽模組以無線傳輸的方式傳輸到手機或電腦。 手機或電腦每次接收到的資訊時，會將每顆感測單元顯示於手機程式對應的腳掌位置，而上方的顏色隨著受力大小，顏色會由淺至深變化，手機或電腦顯示的顏色為當下使用者目前足底壓力的狀態，而每次的壓力資訊會儲顯示於手機。另外應用程式會利用目前16顆感測單元的數值與位置，計算出使用者重心並以紅色星星的方式呈現。
並列摘要
Plantar pressure/shear force array sensor are placed at the bottom of the shoe-pads. When user walks with them, the soles of shoes touch the ground. The Sensing unit perceives different level of pressure and adopts a set of four sensors to detect the Shear force direction. The analog signal is transformed to digital data through the microprocessor in the circuit. The digital signal will then be transmitted to mobile phones or computers through wireless transmission by bluetooth module. As a mobile phone or a computer receives the data, it shows the corresponding position of the foot on the APP. The color which displays on the mobile or computer changes from light to dark with the different perceived level of pressure and represents the current plantar pressure situation of user. Besides, the APP calculates the center of gravity of user according to the numerical value and position of the 16 Sensing unit and it is presented by red star.