Specification - Assignment 1
Target group
Elderly people with bad memory (Alzheimer's disease) and other health problems, living alone.
Target group’s needs
The environment needs to be able to remind the users about important things, e.g. if someone left the cooking plate on or to lock the door at night. Since the user group consists of elderly people, they need things to be simple to use and understand, and as much as possible should be done automatically by the system.
We are also aware of falls and other accidents are acting as important factor of injury or death among target group.
Ideas for designs
Our model will cover whole house/flat with focus is on the bathroom, and we have the idea that you should be able to choose an exact temperature and amount of water you want to fill the bathtub with, since the water in a bathtub often gets too hot or too cold. When the bathtub is filled and ready the users will be notified through a LED-screen and a sound indicating that the bathtub is ready.
Another idea was to make sure that an alarm goes off if the user fall asleep in the bathtub and starts to drown, sensors detecting motion, vibrations and maybe the water level (since the water level will rise if you put your head under water along the rest of your body) can be used to determine if the user is about to drown. If the alarm goes on, the bathtub will empty itself and a doctor will be notified.
Other ideas include doors that open when a user wearing a RFID-tag approaches and lights that automatically turns of when the user is not home or if the user is asleep. Motion sensors and RFID-tags can be used to determine of the user is home. Motions sensors, along with weight sensors in the bed and a clock can determine of the user is asleep (not entirely though, the user may be in bed watching TV or something).
Contextual Information
Contextual information useful in our design includes if the user is asleep or awake, if the user is in the bathtub or not and if the user is drowning or not. The design must also know if the user is home or away. Somehow the design must also know if things have been forgotten or left on on purpose. Perhaps you want to leave the lights on when you leave home.
Components & materials required
RFID-tags and sensors for the doors.
Motion detectors in all rooms.
Temperature and vibration sensors in the bathtub.
Sliders for choosing water temperature and the amount of water in the bathtub.
LED-display to display messages.
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