| 摘要 |
A flexible sensor using a powerless RFID(Radio Frequency IDentification) tag is provided to prevent accidents by attaching the sensor to a human body or infrastructure of a building, and detecting surface deformation caused by external force from the sensor by using a passive RFID tag. A shrinkage detection switch(220) is deformed by external force applied to the surface attached with a flexible sensor, and connects a passive RFID tag(210) and an antenna(230) electrically by using elastic force restored to an original state when the external force is removed. A flexible housing(200) includes the RFID tag, the antenna, and the shrinkage detection switch. The shrinkage detection switch includes a moving part attached to the surface deformed by the external force, and an elastic metallic connector connecting the RFID tag and the antenna electrically. The tag includes a storage(214), a controller(215), an RF(Radio Frequency) transmitter(215), an RF receiver and a rectifier circuit(213). |
