DIANA-a telecare system for supporting dementia sufferers in the community

This paper describes the design of an integrated second generation telecare system which provides monitoring and support of demented patients living alone in their own homes. It employs a number of non-invasive sensors to measure the patient´s everyday activities and habits as a function of time in order to determine an on-going dementia lifestyle index (DLI). Slow increases in this index can be tracked as an indicator of decline in cognitive function. Environmental factors are also recorded electronically. Local intelligence is employed to compensate for confusion or forgetfulness while a telephone response centre provides further information and reminders which can be displayed within the home environment. Wandering is countered using a paging device which emits a locatable low-power radio beacon. The DIANA system reduces the risks associated with community living for older people suffering from dementia