Smart Switch

Team Members: Erika Nulan, Jerret Ross, Long Wang

Our problem is difficult to express briefly.  First we must explain our client, Josh’s situation. Josh is wheelchair bound and unable to communicate verbally or physically. To communicate he uses a computer system (link) and navigates using a motorized wheelchair.  Unfortunately due to his inability to reliably control his motor functions he is only able to consistently manipulate one input device at a time via his knee, so he is forced to chose between communication or propulsion. To utilize his computer system he presses a Bluetooth switch that is mounted on his chair near his knee which acts as an input device for his computer system. Unfortunately this device can only communicate with his computer system and another switch is needed for him to control the motion of his wheelchair thus the switches must be exchanged, this exchange of switches is something that is beyond Josh’s capability thus he is reliant upon the awareness and willingness of others to perform this task. 

What we are trying to do is extend the freedom of our client by creating a smart switch that can intercept the information sent by the switch and delegate how the information is to be used. Our switch decides how to handle this information through predefined ‘modes’ chair mode and board mode.

 

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