APPARATUS AND METHOD FOR TRANSMITTING SENSOR STATUS OF RFID TAG

摘要

PURPOSE: A sensor state transmitting device of an RFID(Radio Frequency ID) tag and a method thereof are provided to directly monitor a value and a state of a sensor of the RFID tag by transmitting unique ID of the tag. CONSTITUTION: An ACK(acknowledgement) command is received from a reader. Sensor data is transmitted to a UII(Unique Item ID) in response to the ACK command(S430). A environment feature is monitored. The sensor data is generated based on the environment feature. The sensor data accesses an SSD(Simple Sensor Data) address. [Reference numerals] (AA) Start; (BB) End; (S430) Storing sensor data and sensor state information; (S450) Constructing sensor state record; (S470) Generating a response message including sensor data and sensor record