Patent ID: 7986229
Filing Date: 2011-07-26
Classification: G06K

Abstract:
1. An apparatus for storing sensing data in a tag which communicates with a Radio Frequency Identification (RFID) reader, the apparatus comprising: a sensing unit which senses or measures information about environmental surroundings of the tag; a volatile memory which stores resultant data sensed or measured by the sensing unit, the volatile memory comprising: a non-volatile memory which stores extracted parameter data or resultant data sensed or measured by the sensing unit; and a control unit which stores resultant data sensed or measured by the sensing unit in the non-volatile memory when the current capacity of the power remaining in the tag which can operate the tag is below a pre-set level, and firstly stores resultant data sensed or measured by the sensing unit in the raw sensor data region of the volatile memory, extracts at least one data parameter from the sensed or measured data stored in the raw sensor data region, and stores the extracted data parameter in the compacted sensor data region, and then moves the extracted at least one data parameter stored in the compacted sensor data region of the volatile memory to the non-volatile memory according to pre-set conditions when the current capacity of the power remaining in the tag which can operate the tag is above the pre-set level.