ÇѱÛÁ¦¸ñ(Korean Title) |
RFID ½Ã½ºÅÛ¿¡¼ µÎ ¸®´õ±âµé°£ÀÇ Çù¾÷À» ÀÌ¿ëÇÑ ÅÂ±× ÀÎ½Ä ¾Ë°í¸®Áò |
¿µ¹®Á¦¸ñ(English Title) |
An cooperative tag recognition algorithm in RFID systems using two-readers |
ÀúÀÚ(Author) |
±èÈ«È
¹Ú¼÷¿µ
ÀÌ»ó±Ô
Hong-Hua Jin
Sook-Young Park
Sang-Kyu Lee
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¿ø¹®¼ö·Ïó(Citation) |
VOL 23 NO. 02 PP. 0024 ~ 0033 (2009. 09) |
Çѱ۳»¿ë (Korean Abstract) |
¹°Ã¼¿¡ ºÎÂøµÈ ű׸¦ ÀÐ¾î ¹°Ã¼¸¦ ½Äº°ÇÏ´Â RFID ±â¼ú¿¡¼ ¿©·¯ °³ÀÇ Å±װ¡ µ¿½Ã¿¡ ±×µéÀÇ ID¸¦ ¸®´õ¿¡ Àü¼ÛÇÒ °æ¿ì ÅÂ±× ½ÅÈ£°¡ ¼·Î Ãæµ¹ÇÔÀ¸·Î °¢ ű׸¦ Á¤È®ÇÏ°Ô ÀνÄÇÏÁö ¸øÇÑ´Ù´Â ¹®Á¦°¡ ÀÖ´Ù. ±×¸®°í RFID ½Äº°¿µ¿ª¿¡ Á¤ÁöµÇ¾î ÀÖ´Â ¿©·¯ °³ÀÇ Å±׸¦ ÀνÄÇÏ´Â ´ÙÁß ÅÂ±× ½Äº° ¹®Á¦´Â ´ÜÀϸ®´õ±â·Î 󸮰¡ °¡´ÉÇÏÁö¸¸, ºü¸£°Ô À̵¿ÇÏ´Â ¿©·¯°³ÀÇ Å±׸¦ ó¸®Çϱ⿡´Â ÇÑ°è°¡ Á¸ÀçÇÑ´Ù. µû¶ó¼ º» ³í¹®¿¡¼´Â ´ÜÀϸ®´õ±â°¡ ¾Æ´Ñ µÎ °³ÀÇ ¸®´õ±â¸¦ ÀÌ¿ëÇÏ¿© ¸®´õ±âµé°£ÀÇ »óÈ£ Çùµ¿ÀÛ¾÷À» ÅëÇÏ¿© ÀÏÁ¤ÇÑ ¼Óµµ·Î À̵¿Çϴ ű׸¦ ÃÖ´ëÇÑ ¸¹ÀÌ ÀÐÀ» ¼ö ÀÖ´Â µÎ°³ÀÇ ¸®´õ±âµé°£ÀÇ Çù¾÷À» ÀÌ¿ëÇÑ Çâ»ó µÈ ű×ÀÎ½Ä ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÏ¿´´Ù. Áï, µÎ °³ÀÇ ¸®´õ±â¸¦ »ç¿ëÇÏ¿© ¸¹Àº ¾çÀÇ Å±װ¡ ¼·Î ´Ù¸¥ À̵¿ ¼Óµµ·Î ¸®´õ±â¸¦ Áö³ª °¥ ¶§, ù ¹ø° ¸®´õ±â°¡ ÀúÀåÇØ ³õÀº ű×Á¤º¸¸¦ µÎ ¹ø° ¸®´õ±â°¡ À̾î¹Þ¾Æ °è¼ÓÇÏ¿© ³ª¸ÓÁö ű׸¦ ÀνÄÇÏ´Â ¹æ¹ýÀÌ´Ù. º» ³í¹®¿¡¼ Á¦¾ÈÇÏ´Â µÎ °³ÀÇ ¸®´õ±âµé°£ÀÇ Çù¾÷À» ÀÌ¿ëÇÑ ÅÂ±× ÀÎ½Ä ¾Ë°í¸®ÁòÀ» Àû¿ëÇÑ ½Ã¹Ä·¹ÀÌ¼Ç °á°ú ´ÜÀϸ®´õ±â ¶Ç´Â Çù¾÷ÀÌ ¾ø´Â µÎ °³ÀÇ µ¶¸³ÀûÀÎ ¸®´õ±â¸¦ »ç¿ëÇßÀ» ¶§ º¸´Ù Çâ»óµÈ ÅÂ±× ÀÎ½Ä °á°ú¸¦ ¾ò¾î³»¾ú´Ù.
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¿µ¹®³»¿ë (English Abstract) |
RFID is a widely spreading contactless automatic recognition technology, which uses RF(Radio Frequency) signal to identify various kinds of objects by reading attached RFID tag information. If more than two tags transfer their ID to a reader at the same time, the tag signals collide and the recognition processing can not be completed. This is called a collision problem of the RFID tags and it becomes a one of important issues in the RFID technology. Using a single reader to identify many inactive tags within the identifiable range is possible, however, there is a limit in identifying the fast-moving or out-numbering RFID tags. In thesis, we introduce a improved RFID tag recognition algorithms: the tags that move with a various speed in a certain range can be identified as much as possible by 2 RFID readers using the proposed cooperative tag recognition algorithm. The result of the simulation shows that this method increases the tag recognition by 4%~49% compared to the way using single reader.
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Å°¿öµå(Keyword) |
RFID
ÅÂ±× ÀÎ½Ä ¾Ë°í¸®Áò
RFID
tag recognition algorithm
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ÆÄÀÏ÷ºÎ |
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