Department of Electronics, University of Málaga, Málaga 29071, Spain.
Department of Electronics, University of Málaga, Biomedical Research Institute of Málaga, Málaga 29071, Spain.
Sensors (Basel). 2014 Feb 10;14(2):2644-62. doi: 10.3390/s140202644.
This paper introduces a novel device based on a tactile interface to replace the attendant joystick in electric wheelchairs. It can also be used in other vehicles such as shopping trolleys. Its use allows intuitive driving that requires little or no training, so its usability is high. This is achieved by a tactile sensor located on the handlebar of the chair or trolley and the processing of the information provided by it. When the user interacts with the handle of the chair or trolley, he or she exerts a pressure pattern that depends on the intention to accelerate, brake or turn to the left or right. The electronics within the device then perform the signal conditioning and processing of the information received, identifying the intention of the user on the basis of this pattern using an algorithm, and translating it into control signals for the control module of the wheelchair. These signals are equivalent to those provided by a joystick. This proposal aims to help disabled people and their attendees and prolong the personal autonomy in a context of aging populations.
本文介绍了一种基于力反馈触觉界面的新型装置，用于替代电动轮椅中的随行操纵杆。它也可以用于购物车等其他车辆。它的使用允许直观的驾驶，几乎不需要或不需要培训，因此可用性很高。这是通过位于轮椅或手推车把手处的触觉传感器以及对其提供的信息进行处理来实现的。当用户与椅子或手推车的把手交互时，他或她会施加一个压力模式，该模式取决于加速、刹车或向左或向右转向的意图。设备内的电子元件随后对接收的信息进行信号调理和处理，使用算法根据该模式识别用户的意图，并将其转换为轮椅控制模块的控制信号。这些信号等同于操纵杆提供的信号。本提案旨在帮助残疾人和他们的护理人员，并在人口老龄化的背景下延长个人的自主权。
