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TS File #6

Environmental Control System:

Client: Male, early forties. Has muscular dystrophy. Ventilator dependent. Spends most of his time in an iron lung. Has full time attendant care, and therefore not concerned about controlling most conventional domestic appliances.

Devices to be operated: Telephone, Computer, Phone , Page Turner, Other mains appliances.

Switch Systems The only viable access method was with the tongue, so we designed and made a two way switch with extremely light action. The switch had to be mounted onto the iron lung, and be removable easily.

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diagram of switch selector

A custom switch selector unit patched the main upward thrust switch through to each of the four devices to be accessed. By dragging the switch sideways the different appliances could be selected. Indicator lamps showed the current output from the switch selector. Different colours were used, so the selector could be used in low light levels without referring to the labels on the box.

The computer was a lap top, which we mounted on an adjustable stand. Words Plus scanning keyboard emulation software was installed which also gave access to mains powered appliances via X-10 units.

 

 

 

 

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Technical Solutions Australia pty. ltd.
109 Ferndale Rd. Silvan VIC 3795
PH 03 9737 9000 - www.tecsol.com.au