نوع مقاله : مقاله کامل پژوهشی

نویسندگان

1 ﺩﺍﻧﺸﺠﻮی ﻛﺎﺭﺷﻨﺎﺳﻰ ﺍﺭﺷﺪ، ﮔﺮﻭﻩ ﻛﻨﺘﺮﻝ، ﺩﺍﻧﺸﻜﺪﮤ ﻣﻬﻨﺪﺳﻰ ﺑﺮﻕ، ﺩﺍﻧﺸﮕﺎﻩ ﺻﻨﻌﺘﻰ ﺍﻣﻴﺮﻛﺒﻴﺮ

2 ﺍﺳﺘﺎﺩﻳﺎﺭ، ﺩﺍﻧﺸﻜﺪﮤ ﻣﻬﻨﺪﺳﻰ ﺑﺮﻕ ﻭ ﻛﺎﻣﭙﻴﻮﺗﺮ، ﮔﺮﻭﻩ ﻣﻬﻨﺪﺳﻰ ﭘﺰﺷﻜﻰ، ﺩﺍﻧﺸﮕﺎﻩ ﺳﻤﻨﺎﻥ

10.22041/ijbme.2014.13556

چکیده

ﺍﻣﺮﻭﺯﻩ ﺑﻪ ﻓﺮﺍﻧﮕﺮی ﺣﺮﻛﺎﺕ ﺑﺪﻥ ﺩﺭ ﻛﺎﺭﺑﺮﺩﻫﺎ ﻭ ﺯﻣﻴﻨﻪﻫﺎی ﺗﺤﻘﻴﻘﺎﺗﻰ ﻓﺮﺍﻭﺍﻧﻰ ﺍﺯ ﺟﻤﻠﻪ ﺗﻮﺍﻧﺒﺨﺸﻰ، ﺩﺭﻣﺎﻥ ﻭ ﭘﺰﺷﻜﻰ ﺑﺴﻴﺎﺭ ﺗﻮﺟﻪ ﻣﻰﺷﻮﺩ. ﺍﺧﻴﺮﺍ ﺷﺘﺎﺏﺳﻨﺞﻫﺎی ﻣﺒﺘﻨﻰ ﺑﺮ MEMS ﺑﺮﺍی ﺍﻳﻦ ﻛﺎﺭﺑﺮﺩ ﻣﻄﺮﺡ ﺷﺪﻩﺍﻧﺪ. ﺩﺭ ﺍﻳﻦ ﭘﮋﻭﻫﺶ ﺑﻪ ﻃﺮﺍﺣﻰ ﻭ ﺳﺎﺧﺖ ﺳﻴﺴﺘﻢ ﺍﻧﺪﺍﺯﻩﮔﻴﺮی ﺯﺍﻭﻳﻪ ﻣﻔﺼﻞ ﻣﺒﺘﻨﻰ ﺑﺮ ﺩﺍﺩﮔﺎﻥ ﺷﺘﺎﺏﺳﻨﺞ ﻭ ﻭﺍﺳﻂ ﺑﻠﻮﺗﻮﺙ ﭘﺮﺩﺍﺧﺘﻪ ﺷﺪﻩ ﺍﺳﺖ. ﺍﺳﺘﻔﺎﺩﻩ ﺍﺯ ﻭﺍﺳﻂ ﺑﻠﻮﺗﻮﺙ، ﻋﻼﻭﻩ ﺑﺮ ﻣﺰﻳﺖ ﻣﺰﺍﺣﻤﺖ ﻛﻤﺘﺮ ﺳﻴﺴﺘﻢ، ﺭﺍﺣﺘﻰ ﺑﺮﻗﺮﺍﺭی ﺍﺭﺗﺒﺎﻁ ﺑﺎ ﻛﺎﻣﭙﻴﻮﺗﺮ ﺷﺨﺼﻰ ﺭﺍ ﻧﻴﺰ ﺑﻪ ﺩﻧﺒﺎﻝ ﺩﺍﺭﺩ. ﺩﺭ ﺍﻳﻦ ﺳﻴﺴﺘﻢ ﺩﻭ ﺷﺘﺎﺏﺳﻨﺞ ﺳﻪ ﻣﺤﻮﺭﻩ ADXL330 ﺗﻌﺒﻴﻪ ﺷﺪﻩ ﺍﺳﺖ ﻛﻪ ﺍﻣﻜﺎﻥ ﺛﺒﺖ ﺍﻃﻼﻋﺎﺕ ﻛﺎﻓﻰ ﻭ ﺑﺮﺭﺳﻰ ﺯﺍﻭﻳﻪ ﻣﻔﺼﻞ ﺭﺍ ﺩﺭ ﻓﻀﺎی ﺳﻪﺑﻌﺪی ﺑﺎ ﺭﻭﺵ DCMR ﻓﺮﺍﻫﻢ ﻣﻰﻛﻨﺪ. ﺭﻭﺵ ﻣﺬﻛﻮﺭ ﺩﺭ ﺛﺒﺖ ﺩﻳﻨﺎﻣﻴﮏ ﺩﺭ ﻣﻘﺎﻳﺴﻪ ﺑﺎ ﺭﻭﺵ CMR ﺍﺯ ﺧﻄﺎی ﻛﻤﺘﺮی ﺑﺮﺧﻮﺭﺩﺍﺭ ﺍﺳﺖ. ﺑﻪ ﻋﻨﻮﺍﻥ ﻧﻤﻮﻧﻪﺍی ﺍﺯ ﻛﺎﺭﺑﺮﺩ ﺍﻳﻦ ﺗﺠﻬﻴﺰﺍﺕ، ﺯﺍﻭﻳﺔ ﻣﻔﺼﻞ ﺁﺭﻧﺞ ﺩﺭ ﻃﻰ ﺣﺮﻛﺖ ﺗﻌﻴﻴﻦ ﻭ ﺑﺮﺭﺳﻰ ﺷﺪﻩ ﺍﺳﺖ. ﺩﺭ ﻧﻬﺎﻳﺖ ﺑﺎ ﺍﺳﺘﻔﺎﺩﻩ ﺍﺯ ﺳﻴﺴﺘﻢ ﻓﻮﻕ ﺑﻪ ﺑﺮﺭﺳﻰ ﻋﻤﻠﻰ ﺭﻭﺵ CMR ﺩﺭ ﺷﺮﺍﻳﻂ ﺍﻳﺴﺘﺎ ﻭ ﺩﻳﻨﺎﻣﻴﮏ ﭘﺮﺩﺍﺧﺘﻪ ﺷﺪﻩ ﺍﺳﺖ. ﺩﺭ ﺍﻳﻦ ﭘﮋﻭﻫﺶ، ﺍﺯ ﺗﺠﻬﻴﺰﺍﺕ ﻣﺤﻜﻰ ﺷﺎﻣﻞ ﺁﻭﻧﮓ، ﺳﻴﺴﺘﻢ ﺛﺒﺖ ﺍﻃﻼﻋﺎﺕ ﺳﻴﻨﻤﺎﺗﻴﮏ ﺑﺎ ﺩﻭ ﺣﺴﮕﺮ ﺑﻰﺳﻴﻢ ﻭ ﺯﺍﻭﻳﻪﺳﻨﺞ ﺍﻟﻜﺘﺮﻳﻜﻰ ﺍﺳﺘﻔﺎﺩﻩ ﺷﺪﻩ ﺍﺳﺖ. ﺑﺎ ﻣﺮﺟﻊ ﻗﺮﺍﺭ ﺩﺍﺩﻥ ﺩﺍﺩﮔﺎﻥ ﺣﺎﺻﻞ ﺍﺯ ﺯﺍﻭﻳﻪﺳﻨﺞ ﺍﻟﻜﺘﺮﻳﻜﻰ، ﺣﺪﺍﻛﺜﺮ ﺧﻄﺎی ﺍﻳﺴﺘﺎ ﻭ ﺩﻳﻨﺎﻣﻴﮏ ﺑﻪ ﺗﺮﺗﻴﺐ 3 ﻭ 1/6 ﺩﺭﺟﻪ ﺣﺎﺻﻞ ﺷﺪ. 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Sensor design and construction of angle measurement device based on accelerometer sensor and Bluetooth module

نویسندگان [English]

  • Sahar Babaei 1
  • Ali Maleki 2

1 M.Sc,Control Department, Faculty of Electrical Engineering,Amirkabir University of Technology

2 Assistant Professor, Faculty of Electrical and Computer Engineering,Semnan University

چکیده [English]

Nowadays real time motion tracking have been receiving considerable attention in many applications and research fields such as rehabilitation, medicine and treatment. Recently MEMS accelerometers play an important role to attend desired result for these applications. This paper presents a new design for angle measurement device based on accelerometer sensor and Bluetooth module. Using Bluetooth module in addition to providing minimally obtrusive recording, allows you to connect to your personal computer and mobile quicker and easier. This system has made up of 2 complete 3 axis accelerometer ADXL330, which by giving sufficient data in 3D space allows us to investigate joint angle with DCMR method. The mentioned method in dynamic recording remarkably has less error in comparison to CMR method. As one application for this system, determination of elbow joint angle is studied. Eventually experimental recording of elbow joint angle in static and dynamic condition was done by applying CMR method. With reference to electrogoniometer output the maximum static and dynamic error were obtained respectively 3 and 6.1 degrees.

کلیدواژه‌ها [English]

  • Accelerometer
  • Angle sensor
  • Bluetooth
  • DCMR
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