Personal adaptive mobility aid for the infirm and elderly blind.

People with both visual and mobility impairments have great difficulty using conventional mobility aids for the blind. As a consequence they have little opportunity to take exercise without assistance from a carer. The combination of visual and mobility impairments occurs most often among the elderly. In this paper we examine the issues related to mobility for the blind and pay particular attention to the needs of the elderly or frail. We overview current mobility aids and detail some of the research in this area. We then describe our robot mobility aid, PAM-AID, that aims to provide both physical support during walking and obstacle avoidance. We examine factors that are relevant to the operation of PAM-AID and describe some initial user trials. Finally we describe the current status of the project and indicate its future direction. [ABSTRACT FROM AUTHOR]