Integrating a bed sensor in a smart home monitoring system

The research and development work for a wireless sensors based home monitoring system, especially for old, ill or infirm people, has been reported earlier. The system is based on sensors which detect the usage pattern of electrical appliances, whether they are on or off and at what time of the day or night they are switched. To increase the versatility of the system, several more sensors of different types can be incorporated. In this paper we report the development and integration of a bed-sensor in the existing selective activity monitoring (SAM) system. The sensor can detect when a person is sleeping on the bed.