Results course “Embedded Systems”
Individual project 9/17

Users who rely on a wheelchair have additional requirements for visual perception. If there is no possibility of direct contact with the ground and the wheelchair is large and motorized, the field of vision is severely restricted. The safe navigation around obstacles such as bumps or curbs is not easily possible.

If further senses such as hearing or the sense of balance are impaired, additional needs arise to support the limited perceptibility of the environment. The lack of information about the environment is bridged and the perceptibility extended with our embedded system.

For this purpose, the system detects the immediate surroundings of the wheelchair by means of sensors and gives the response via actuators. This is made possible through various forms of response in order to minimize the perceived sensory limitations of those affected in everyday life to a minimum.

When seated, the field of view is more inclined to the ground in a natural way than horizontally-frontally aligned. Physiological consequences such as neck tension and poor posture can be prevented by skillfully positioning and connecting the system. Prerequisites for the best positioning and connection of the display module are shown in Figure 1: The viewing area A is preferable to the others shown. If this is not possible, for example due to diseases of the spine, then viewing area B in the application is also applicable. Viewing area C, on the other hand, is unsuitable. In this case, it is better to support the visual feedback with audio or to replace it completely.

More details about the project can be found in the wiki of the HRW FabLab:

“Embedded Systems” was developed as part of the Emscher-Lippe-hoch-4 project.
On the project website of Emscher-Lippe-hoch-4 you will find more detailed information about the project as well as an overview of all results from “Embedded Systems”:



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