Existing Systems

I've been studying systems that are similar to the technology we're looking for and compiling all the information in one place to be looked at:

Personal Alarms for the Elderly
Similar ideas to how we plan our emergency alarm button for our users. As you can see, most of these rely on a system where the alarm is hung around the neck, or they are panic buttons located in the home.

http://www.aidcall-alarms.co.uk/what_is_aid_call.htm

http://www.quicksafe.co.uk/phone-panic-alarm.htm

http://www.medscope.org/

http://www.life-alarm.com/

Home-Management Systems
Not all of these are specifically targeted at the elderly, but it useful to see how a home can be managed via a single interface.

http://www.svsmarthomes.com/

http://www.affordablemonitoring.com/elderly.htm

http://www.electronicsolutionsco.com/home_automation/