Cell Phones Now Helping to Guide the Blind

In Stockholm, wireless technology helps blind people navigate independently.

May 14, 2007 (Computerworld) — Although Sweden’s reputation for extremely generous social welfare services is somewhat exaggerated, the country is at the forefront of using IT and telecommunications to help the elderly and disabled remain as autonomous as possible. This allows those in need to maintain their dignity and reduces expenditures for publicly financed social workers and personal assistants.

One of the most challenging projects has been an effort to develop a system for guiding the sight-impaired and blind with voice advisories from their mobile phones. The navigation system is the first high-tech, software-related project to be undertaken as part of the city of Stockholm’s Project of Easy Access for the visually impaired, which has hitherto been a program of rebuilding sidewalk curbs, building wheelchair ramps and making other adjustments to Stockholm’s physical infrastructure.

Swedish firm Mobile Sorcery AB is developing the software for the prototype system, which uses a Nokia 6300 Symbian phone with earphones and a separate GPS unit linked to the phone through Bluetooth SIG technology. The application linking a geographic information system (GIS) to the guidance system is provided by Astando AB, another Swedish company.

“We designed all the client software which resides on the phone, plus there is a standard voice synthesis solution from Acapela Group,” says Tomas Upp­gård, CEO of Mobile Sorcery. The complete system was tested by about a dozen sight-impaired and blind people in Sweden’s capital in late 2006. The navigation application from Astando locates the user and plots a path to the destination using a highly detailed GIS created and maintained by the city mainly for street maintenance and traffic management purposes.

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