Mahesh Kumar Thodupunuri,Brian Guthrie,John G. Byers
申请号：
US13795404
公开号：
US09707143B2
申请日:
2013.03.12
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A person support apparatus comprises a lower frame, an upper frame, a drive structure, and a control system. The upper frame is movably supported above the lower frame. The drive structure is coupled to the upper frame and configured to selectively engage a surface to, when activated, propel the person support apparatus along the surface. The control system is configured to determine an engagement status of the drive structure with the surface and trigger a response based on the engagement status.
