Abstract
An omnidirectional wheelchair based on Mecanum wheel was introduced. Firstly, the motion principles of the Mecanum wheel were illustrated, and then VRML was made use of to make the omnidirectional wheelchair real-time customization and motion simulation come ture, in which the parts' color can be changed and so the components replaced via the customization panel, and also many motion forms such as walking straightly, crossly, bias or originally can be realized via the simulation panell. In this way, clients can not only take part in the design for the wheelchair, getting a satisfied wheelchair but also get a deeper and more vivid cognition about the special motion functions of the wheelchair.
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