Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A prototype power assist wheelchair that provides for obstacle detection and avoidance for those with visual impairments | Journal of NeuroEngineering and Rehabilitation BioMed Central Research Open Access A prototype power assist wheelchair that provides for obstacle detection and avoidance for those with visual impairments Richard Simpson 1 2 3 Edmund LoPresti4 Steve Hayashi2 Songfeng Guo1 2 Dan Ding1 2 William Ammer2 Vinod Sharma3 and Rory Cooper1 2 3 Address Department of Rehabilitation Science and Technology University of Pittsburgh Pittsburgh PA USA 2Human Engineering Research Labs VA Pittsburgh Healthcare System Pittsburgh PA USA 3Department of Bioengineering University of Pittsburgh Pittsburgh PA USA and 4AT Sciences Pittsburgh PA USA Email Richard Simpson - ris20@ Edmund LoPresti - edlopresti@ Steve Hayashi - sthayashi@ Songfeng Guo - sguo@ Dan Ding - dad5@ William Ammer - ammer @ Vinod Sharma - vks3@ Rory Cooper - rcooper@ Corresponding author Published 03 October 2005 Received 16 February 2005 Journal of NeuroEngineering and Rehabilitation 2005 2 30 doi 86 1743-0003-2-30 Accepted 03 October 2005 This article is available from http content 2 1 30 2005 Simpson et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Almost 10 of all individuals who are legally blind also have a mobility impairment. The majority of these individuals are dependent on others for mobility. The Smart Power Assistance Module SPAM for manual wheelchairs is being developed to provide independent mobility for this population. Methods A prototype of the SPAM has been developed using Yamaha JWII power assist hubs sonar and infrared rangefinders and a microprocessor. The prototype limits the user to moving straight forward straight backward or
