id	keyword
bitcs-4332	system
bitcs-4332	farm
bitcs-4332	detection
bitcs-4332	rfid
bitcs-4332	animal
bitcs-4332	image
bitcs-4332	sensor
bitcs-4332	figure
bitcs-4332	recognition
bitcs-4332	intrusion
bitcs-4332	technology
bitcs-4332	no.2
bitcs-4332	farmland
bitcs-4332	crops