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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
RFID ÅÂ±× °´Ã¼¸¦ À§ÇÑ ±¸°£ »öÀÎ ±¸Á¶ÀÇ ¼³°è ¹× ±¸Çö |
¿µ¹®Á¦¸ñ(English Title) |
Design and Implementation of Index for RFID Tag Objects |
ÀúÀÚ(Author) |
¹ÝÀçÈÆ
È«ºÀÈñ
Chae-Hoon Ban
Bong-Hee Hong
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¿ø¹®¼ö·Ïó(Citation) |
VOL 12 NO. 02 PP. 0143 ~ 0146 (2008. 10) |
Çѱ۳»¿ë (Korean Abstract) |
RFID ½Ã½ºÅÛ¿¡¼ ű×ÀÇ À§Ä¡¸¦ ÃßÀûÇϱâ À§Çؼ´Â ű×ÀÇ ±ËÀûÀ» ¸ðµ¨¸µÇÏ°í »öÀÎÀ¸·Î ±¸¼ºÇØ¾ß ÇÑ´Ù. ±ËÀûÀº űװ¡ Æǵ¶±âÀÇ ÀνĿµ¿ªÀ¸·Î µé¾î°¥ ¶§¿Í ³ª°¥ ¶§ º¸°íµÇ´Â µÎ °³ÀÇ ½Ã°ø°£ À§Ä¡¸¦ ¿¬°áÇÑ ¼±ºÐÀ¸·Î Ç¥ÇöµÉ ¼ö ÀÖ´Ù. ¸¸¾à űװ¡ Æǵ¶±âÀÇ ÀνĿµ¿ª¿¡ µé¾î¿Í ³ª°¡Áö ¾Ê´Â °æ¿ì¿¡ ű×ÀÇ ±ËÀûÀº ÀνĿµ¿ª¿¡ µé¾î¿Ã ¶§¸¸ º¸°íµÈ Á¡À¸·Î Ç¥ÇöµÇ¸ç, ÁúÀÇ Ã³¸® ½Ã ÀÌ·¯ÇÑ Å±׸¦ ã±â À§ÇØ ÁúÀÇ¿µ¿ªÀ» È®ÀåÇؾßÇÏ´Â ¹®Á¦°¡ ¹ß»ýÇÑ´Ù. ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇÏ¿© ÀÌ ³í¹®¿¡¼´Â RFID ű×ÀÇ ±ËÀûÀ» À§ÇÑ ±¸°£ µ¥ÀÌÅÍ ¸ðµ¨À» Á¤ÀÇÇÑ´Ù. ¶ÇÇÑ ±¸°£ µ¥ÀÌÅÍ ¸ðµ¨¿¡ ÀûÇÕÇÑ R-tree ±â¹Ý »öÀÎ ±¸Á¶ÀÎ IR-tree(Interval R-tree)¸¦ Á¦½ÃÇϸç È¿À²ÀûÀÎ ÁúÀÇ󸮸¦ À§ÇØ ½Ã°£¿¡ Á¾¼ÓÀûÀÎ µ¿Àû ±¸°£ÀÇ Æ¯¼ºÀ» °í·ÁÇÑ »õ·Î¿î »ðÀÔ ¹× ºÐÇÒ ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. ¸¶Áö¸·À¸·Î ´Ù¾çÇÑ µ¥ÀÌÅÍ ÁýÇÕ¿¡¼ Á¦¾ÈµÈ »öÀΰú ±âÁ¸ ¾Ë°í¸®ÁòÀ» »ç¿ëÇÏ´Â »öÀΰúÀÇ ¼º´Éºñ±³¸¦ ÅëÇÏ¿© »öÀÎÀÇ ¿ì¼ö¼ºÀ» ÀÔÁõÇÑ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
For tracing tag locations, a trajectories should be modeled and indexed in radio frequency identification (RFID) systems. The trajectory of a tag can be represented as a line that connects two spatiotemporal locations captured when the tag enters and leaves the vicinity of a reader. If a tag enters but does not leave a reader, its trajectory is represented only as a point captured at entry and we should extend the region of a query to find the tag that remains in a reader. In this paper, we propose an interval data model of tag¡¯s trajectory in order to solve the problem. For the interval data model, we propose a new index scheme called the IR-tree(Interval R-tree) and algorithms of insert and split for processing query efficiently. We also evaluate the performance of the proposed index scheme and compare it with the previous indexes.
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Å°¿öµå(Keyword) |
RFID
Tag
Trajectory
Data Model
Index
R-trees
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ÆÄÀÏ÷ºÎ |
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