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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Á¤º¸°úÇÐȸ ³í¹®Áö I : Á¤º¸Åë½Å

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) RFID ½Ã½ºÅÛ¿¡¼­ Æи®Æ¼ ¸ÞÄ«´ÏÁòÀ» ÀÌ¿ëÇÑ Ãæµ¹¹æÁö ¾Ë°í¸®Áò
¿µ¹®Á¦¸ñ(English Title) An Anti Collision Algorithm using Parity Mechanism in RFID Systems
ÀúÀÚ(Author) ±è¼º¼ö   ±è¿ëȯ   ¾È±¤¼±   Sungsoo Kim   Yonghwan Kim   Kwangseon Ahn  
¿ø¹®¼ö·Ïó(Citation) VOL 36 NO. 05 PP. 0389 ~ 0396 (2009. 10)
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(Korean Abstract)
RFID(Radio Frequency IDentification) ½Ã½ºÅÛ¿¡¼­ »ç¹°¿¡ ºÎÂøµÈ ű׿¡ ´ëÇÑ ½Äº°Àº ¸®´õÀÇ ¿äûÀ¸·Î ½ÃÀÛÇÑ´Ù. ¸®´õ°¡ ¿äûÀ» ÇÏ¸é ¸®´õÀÇ ÀνĿµ¿ª ³»¿¡ ÀÖ´Â ´Ù¼öÀÇ Å±״ µ¿½Ã¿¡ ÀÀ´äÀ» ÇÏ¿© Ãæµ¹ÀÌ ¹ß»ýÇÑ´Ù. ¸®´õ´Â ÀνĿµ¿ª ³»ÀÇ ¸ðµç ű׵éÀ» ºü¸£°Ô ÀνÄÇÏ´Â Ãæµ¹¹æÁö ¾Ë°í¸®ÁòÀÌ ÇÊ¿äÇÏ´Ù. º» ³í¹®¿¡¼­´Â Æи®Æ¼ ¸ÞÄ«´ÏÁòÀ» ÀÌ¿ëÇÑ Ãæµ¹¹æÁö ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÑ ¾Ë°í¸®Áò¿¡¼­, ű״ ¸®´õÀÇ ¿äû ÇÁ¸®ÇȽº¿Í ÀÏÄ¡Çϴ ű׵é Áß ÇÁ¸®ÇȽº ´ÙÀ½ÀÇ 2 ºñÆ®µéÀÇ '1'ÀÇ °³¼ö°¡ ¦¼öÀÎ ÅÂ±× ±×·ìÀº '0' ½½·Ô¿¡ ÀÀ´äÇÏ°í, '1'ÀÇ °³¼ö°¡ Ȧ¼öÀÎ ÅÂ±× ±×·ìÀº '1' ½½·Ô¿¡ ÀÀ´äÇÏ°Ô ÇÏ¿© Ãæµ¹À» ¹æÁöÇÑ´Ù. ÇØ´ç ½½·Ô¿¡ ÀÀ´ä¿¡ µû¶ó Á¸ÀçÇÏ´Â ÅÂ±× ¾ÆÀ̵𸸠ÀÀ´äÇÒ ¼ö ÀÖµµ·Ï ¿äû ÇÁ¸®ÇȽº¸¦ »ý¼ºÇÑ´Ù. ¶ÇÇÑ ÇØ´ç ½½·Ô¿¡ Ãæµ¹ÀÌ 2°³ÀÎ °æ¿ì¿¡´Â Æи®Æ¼ ¸ÞÄ«´ÏÁòÀ» ÀÌ¿ëÇÏ¿© 2°³ÀÇ Å±׸¦ ÀνÄÇÑ´Ù. Áï, ÀüüÀûÀÎ ÁúÀÇ È½¼ö¸¦ ÁÙ¿© ÀνĽð£À» ´ÜÃàÇÑ´Ù.
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(English Abstract)
In RFID systems, identifying the tag attached to the subject begins with the request from a reader. When the reader sends a request, multiple tags in the reader's interrogation zone simultaneously respond to it, resulting in collision. The reader needs the anti collision algorithm which can quickly identify all the tags in the interrogation zone. We propose the Anti Collision Algorithm using Parity Mechanism(ACPM). In ACPM, a collision can be prevented because the tags which match with the prefix of the reader's request respond as followings; the group of tags with an even number of 1's in the bits to the prefix 2nd bits responds in slot '0', while the group of tags with an odd number of 1¡¯s responds in slot '1'. The ACPM generates the request prefix so that the only existing tags according to the response in the corresponding slot. If there are two collided bits in tags, then reader identify tags by the parity mechanism. That is, it decreases the tag identification time by reducing the overall number of requests.
Å°¿öµå(Keyword) RFID   Ãæµ¹¹æÁö ¾Ë°í¸®Áò   ½½·Ô   Æи®Æ¼ ¸ÞÄ«´ÏÁò   RFID   Anti Collision   Slot   Parity Mechanism  
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