The brief was to work alongside the clients own software and electronic design team and to develop a mechanical design for a portable, battery powered, lightweight, low cost, menu driven, remote control, ECS unit which would enable physically disabled users to maintain their independence by carrying out simple and sophisticated tasks without the intervention of a carer. The project was strongly supported by the client who contributed experience gained from evaluation of previous models.
The first stage was to prepare a full specification for the product including a user methodology. Many users have very limited ability, such as control over their breathing (suck or blow) a finger press or movement of their head. This was followed by an extensive concept design stage using sketchbooks developing into 3D visualisation. The client chose a composite design incorporating features from several concepts and this was presented as a 3D visualisation.
At this time the client had limited 3D CAD capability and they found it easier to see components as traditional 2D 'blueprints'. The final design was developed using a combination of 2D and 3D CAD and was tooled from fully dimensioned drawings.
The unit incorporates an interchangeable menu card with scanning LED backlight and spoken messages. The menu card can be easily swapped as the unit is moved around the users home or as the users need change.
The functions are controlled via infra red and an integral radio transmitter by using an external switch input. The unit is capable of triggering an alarm or pager or door opener, it can also control electrical apliances such as TV, DVD, Computer as well as answer a door intercom and telephone.
