The invention provides a method of pig carcass marking, data collection and
data conversion. The method comprises the following steps: in an entrance where pigs enter a slaughtering line, an industrial-grade
barcode scanning gun is used for reading the code of an
ear tag detached from a decapitated head of a pig; after hairs of the pig are removed in a
scalding mode and the pig is
cut into two carcasses, a carcass
radio frequency identification (RFID) electronic tag is immediately arranged in the position of a hook at the upper end of each carcass in sequence; an RFID antenna is matched with an RFID reader to read the information of the moving carcass RFID
electronic tags, and the information is uploaded to a
database of a data
server of a
slaughter house through a computer used for recoding codes on site; when the pig carcasses with the carcass RFID
electronic tags enter a supermarket to be sold in a
cutting mode, a tablet type RFID reader is used for reading the carcass RFID
electronic tags on site, conversion of signals and data is carried from an RS232 interface to a PS2 interface of a
barcode printer, and the signals and data are changed into
traceability codes which can be directly printed by the
barcode printer. The method of pig carcass marking, data collection and
data conversion realizes whole-process tracing of the quality of pork products.