RFID-based danger prevention for home safety

Certain locations and objects at home can easily cause dangerous situations for elders over 65 and kids under 14. It is desired that the caregiver is warned when elders or kids get close to these locations or objects to prevent dangerous situations. In this research, we developed a system for such a purpose. An active RFID tag is attached to each location and each object. The elder or kid carries an RFID reader which detects the signal strengths (RSSI values) of all tags and transmits them to the system in a computer in real time. The system issues a warning to the caregiver when the dangerous degree is above the predefined threshold. A dangerous situation can be prevented if the caregiver watches out beforehand. The dangerous degree is determined through fuzzy inference on RSSI values and the user age. A feedback mechanism is also designed to provide personalized services. Experimental results demonstrate that the system is useful.

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