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  • 學位論文

可攜式腳底壓力量測系統之研發

The Development of a Planter Pressure Acquisition System

指導教授 : 胡威志

摘要


腳底壓力的分佈特徵在醫學及生物力學的應用上,可作為辨別多種疾病的重要依據,如脊髓性肌肉萎縮症(CMT)的病人其壓力分佈會呈現側邊壓力過大的症狀。且人類的步態會因個體特性的差異而有所不同,可藉由步態的生理訊號分析瞭解病情,及作為矯正改善患者狀況之依據。精確且實用之動態腳底壓力量測需高解析度及靈敏度之儀器,為了實現高解析度、可攜式並具有即時監控的腳底壓力量測系統,本研究發展出以可程式系統晶片(PSoC)為核心之可攜式腳底壓力量測系統,整合硬體系統周邊電路以晶片內部可動態規劃的混合訊號陣列來實現。透過對選擇與擷取電路的控制,將腳底壓力訊號傳送至PSoC 內部放大器、濾波器模組做初步訊號處理,由ADC 模組轉為數位訊號經UART 模組傳送至電腦端,並且改善與腳壓底壓力感測器(F-SCAN)的連接方式,透過與軟體的整合,可即時顯示正常步行情況下的細部腳底壓力變化。 系統測試的結果,在系統擷取速度與傳輸方面,PSoC 系統晶片內部A/D 轉換模組取樣率可高達31.25KHz,壓力擷取速度能達到雙腳16.3Hz,且串列傳輸模組可支援至6MHz。在腳底壓力參數分析方面,在一個步態周期下,本系統可分析腳底壓力參數如壓力的峰值、區域平均壓力變化、壓力-時間積分參數、左右腳壓力數值比重、壓 力重心位置、單腳與雙腳壓力重心偏移軌跡以及腳底受力面積等參數。可提供醫師、復健師做為評估腳底壓力的依據。

並列摘要


The purpose of this research is to develop a plantar pressure acquisition system using embedded Programmable System on Chip(PSoC) technology to acquire plantar pressure. The objective of this development is to make the acquisition device available for physician and research to acquire data on line and in real-time. The distribution of plantar pressure is an important to identify diseases such as peripheral neuropathy, plantar ulcer, varus, talipes valgus, flat-footed, etc. Patients with polyneuropathy often lose sensation of pain at their feet. They are high-risk groups for developing neuropathic ulcers on the plantar surface of their feet. That may lead to lower extremity amputation. Using plantar pressure evaluation system, physicians are able to monitor the improvement of patient’s illness. Therefore, the device is having a specification of acquiring plantar pressure 10 frames per second. That will be able to recording a regular walking pattern.

並列關鍵字

PSoC gait analysis plantar pressure portable

參考文獻


[23] 王志元,“以個人數位助理為基礎之腳底壓力量測系統設計”,私立中原大學醫學工程研究所碩士論文,民國91年。
[53] 王志元,“以個人數位助理為基礎之腳底壓力量測系統設計”,中原大學醫學工程碩士論文,民國91年。
[18] 李明義,“人體步行動態平衡反應評估-蝴蝶狀重心晃動曲線分析比較”,中華醫學工程學刊,Vol 20, No.3, pp.167-176, September 2000.
[1] I.C.N. Sacco and A.C. Amadio, “A study of biomechanical parameters in gait analysis and sensitive cronaxie of diabetic neuropathic patients” Clinical Biomechanics, Vol 15, pp. 196-202, Issue:3, March, 2000.
[2] B.A. MacWilliams and P.F. Armstrong, “Clinical applications of plantar pressure measurement in pediatric orthopedics” Pediatric Gait, pp.143-150, 2000.

被引用紀錄


李直穎(2007)。以足壓分佈與加速規資訊分析人體行走時的動態平衡〔碩士論文,中原大學〕。華藝線上圖書館。https://doi.org/10.6840%2fCYCU.2007.00666

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