TECHNIQUES OF DATA COLLECTION FROM TWO SMARTWHEELS

SONGFENG GUO, RORY A. COOPER, MICHAEL L. BONINGER , ALICIA KOONTZ
Department of Rehabilitation Science & Technology, and Physical Medicine & Rehabilitation , University of Pittsburgh
Human Engineering research Lab, VA Rehabilitation Research & Development Center, VA Pittsburgh Healthcare System

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TECHNIQUES OF DATA COLLECTION FROM TWO SMARTWHEELS

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SONGFENG GUO, RORY A. COOPER, MICHAEL L. BONINGER , ALICIA KOONTZ

Department of Rehabilitation Science & Technology, and Physical Medicine & Rehabilitation , University of Pittsburgh

Human Engineering research Lab, VA Rehabilitation Research & Development Center, VA Pittsburgh Healthcare System

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INTRODUCTION

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Manual wheelchair users are at high risk of median nerve injury and carpal tunnel syndrome.

Investigate the biomechanics of an individual pushing a wheelchair.

Force sensing device, a digital force and moment sensing pushrim on the wheel.

Introduce a method to collect data from two SMARTWHEEL .

Hardware and software are described in this paper.

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HARDWARE

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The hardware consists the left SMARTWHEEL, the right SMARTWHEEL, PC, two-serial port PCI interface board, video digitizing system.

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HARDWARE

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SOFTWARE

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BORLAND C++ BUILDER 4.0 LANGUAGE

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Software

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1.SETTING SERIAL COMMUNICATION DEVICE-CONTROL BLOCK(DCB) STRUCTURE BuilderCommDCB BAUD RATE, PARITY TEST, STOP BITS

2. OPEN A COMMUNICATION PORT

  • CreateFile COM5, COM6

3. ReadFile

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RESULTS & DISCUSSION

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By using the techniques, we could receive the data from two SMARTWHEELS .

The baud rate is 38.4 kbits/s for each wheel, no data lost.

The hardware connections for signal ports and trigger are simple.

Waveform of two SMARTWHEEL forces could be displayed in real time.

Future software could be improved by adding database and analyzing parts.

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THANK YOU

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Updated: March 14, 2002

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