tomk57 / mobile-device-for-deafblind-people

Mobile-device-for-deafblind-people

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Motivation

The biggest problem for deafblind people is social isolation. Ofcourse they can read books printed in Braille or write a letter using a Braille keyboard, but this is not the same as talking with somebody.

The aim of the project

is to provide a technical solution which allows deafblind people to talk with somebody as similar to a normal talk as possible.

The 5 bit code


System requirements

The system shall allow for full duplex communication
The system shall use the haptic capabilities of the human fingers
There shall be one device to be used with one hand for sending the information
There shall be a second device to be used with the other hand for receiving the information
In buildings the communication link between devices shall use WLAN
In the field the system shall use mobile infrastructure like 4G and 5G.
The devices shall use Bluetooth to connect to mobile phones as links to the mobile infrastructure
Sender and receiver device shall be designed with best ergonomic properties in mind
The sender device shall have 5 contacts, one for each finger
The contacts shall provide haptic feedback when pressed
The receiver device shall have 5 contacts, one for each finger
The contacts shall provide a haptic feedback when an information is sent to that finger.
The kind of haptic feedback shall allow for use over several quarters of an hour without leading to artifacts in the sensation of the fingers.

System architecture - Top Level

Power supply

The devices shall be able to operate from batteries (rechargeable).
Battery lifetime tbd h (reasonable/acceptable)

Performance

The devices shall be capable of processing at least 10 keystrokes per seconds

Pictures of some prototypes built so far

Evaluation of technical and ergonomic concepts