Electrically propelled wheelchair control system and method based on visual tracking

Abstract

The invention discloses an electrically propelled wheelchair control system and method based on visual tracking. The system comprises a processor and an eye tracker, wherein the eye tracker is connected with the processor; an output end of the processor is connected with a motor driver, and a motor of an electrically propelled wheelchair is connected with the output end of the motor driver. The method comprises the following steps of 1, collection and transmission of eye movement images; 2, processing of the eye movement images; 3, route planning; 4, moving of the electrically propelled wheelchair. The design is novel and reasonable, the functions are perfect, the computing speed is high, the identification precision is high, fewer associated devices are needed, the control system and method are not limited by time, space, outer environments and the like, the operation burden of an electrically propelled wheelchair operator can be reduced, malfunction can be avoided, the practicabilityis high, the using effect is good, and application and popularization are facilitated.

Description

technical field [0001] The invention belongs to the technical field of intelligent electric wheelchair control, and in particular relates to a visual tracking-based electric wheelchair control system and method. Background technique [0002] The wheelchair is an important tool for rehabilitation. It is not only a means of transportation for the physically disabled, but more importantly, it enables them to use wheelchairs to perform physical exercises and participate in social activities. The use of wheelchairs by the elderly and the disabled has become very common. However, in our daily life It can be seen in the figure that the center of gravity of the wheelchair is fixed and the guide wheels also play the role of load-bearing wheels to a large extent. It is more laborious to use. Ordinary wheelchairs generally consist of four parts: wheelchair frame, wheels, brake device and seat. The advancement of modern technology has also made wheelchairs develop greatly. There are ele...

AI Technical Summary

Problems solved by technology

The first one, Zhou Tingting's master's thesis of Hangzhou Dianzi University in 2014, "Research on Controlling Electric Wheelchairs Based on Intentional Eye Movements", in which the eye movement control is used to identify the direction of eye movement by collecting eye electrical signals , not fast and convenient enough; the second one is Yuan Chunxing's master's thesis "Natural Human-Computer Interaction Based on Eye Movement" of the 2015 National University of Defense Technology. In this paper, the wheelchair can be controlled by eye movement within a short distance. When the location is far away, the wheelchair cannot be allowed to automatically perform path planning and autonomous movement

There is still a lack of perfect, practical, and effective electric wheelchair control systems and methods based on visual tracking in the prior art

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