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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö ÄÄÇ»ÅÍ ¹× Åë½Å½Ã½ºÅÛ

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Current Result Document : 4 / 27 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ½Ç³»ÃøÀ§¸¦ À§ÇÑ ÇΰÅÇÁ¸°Æÿ¡¼­ÀÇ RSSI º¯µ¿À» °í·ÁÇÑ ¾ÈÁ¤µÈ AP ¼±Ãâ¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) A Stable Access Point Selection Method Considering RSSI Variation in Fingerprinting for Indoor Positioning
ÀúÀÚ(Author) Ȳµ¿¿±   ±è°­¼®   DongYeop Hwang   Kangseok Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 06 NO. 09 PP. 0369 ~ 0376 (2017. 09)
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(Korean Abstract)
ÃÖ±Ù, RSSI ±â¹ÝÀÇ ÇΰÅÇÁ¸°Æà À§Ä¡ÃßÁ¤ ±â¼úÀº ½Ç³» À§Ä¡ ±â¹Ý ¼­ºñ½º¿¡ ³Î¸® »ç¿ëµÇ°í ÀÖ´Ù. ±âÁ¸ÀÇ ÇΰÅÇÁ¸°Æà ±â¹ý¿¡¼­´Â À§Ä¡ÃßÁ¤ Á¤È®µµ¸¦ ³ôÀ̱â À§ÇØ ¼ö½Å µÇ´Â ÃÖ´ëÇÑ ¸¹Àº ¼öÀÇ APµéÀ» »ç¿ëÇϰųª, ÃøÀ§¿¡ ¼Ò¿äµÇ´Â ½Ã°£À» ÁÙÀ̱â À§ÇØ RSSI ½ÅÈ£ÀÇ ¼¼±â°¡ °¡Àå °­ÇÑ ÀϺÎÀÇ AP¸¸À» ¼±ÅÃÇÏ¿© »ç¿ëÇÏ¿´´Ù. ±×·¯³ª ½ÇÁ¦ ȯ°æ¿¡¼­ ¹ß»ýÇÏ´Â »ç¶÷ÀÇ ¿òÁ÷ÀÓÀ̳ª À̵¿ÇÏ´Â Àå¾Ö¹°µîÀÇ ÁÖº¯ ȯ°æ º¯È­¿¡ µû¸¥ RSSIÀÇ ¿ÀÂ÷°¡ ¹Ý¿µµÇÁö ¾Ê¾Ò´Ù. ÀÌ·¯ÇÑ È¯°æº¯È­´Â RSSI ½ÅÈ£ ¼¼±âÀÇ ¿¹Ãø°ª°ú ½ÇÃø°ª°úÀÇ Â÷À̸¦ ¹ß»ý½ÃÅ°´Â ¿øÀÎÀÌ µÇ¸ç, À§Ä¡ÃßÁ¤¿¡ ¿¹ÃøÇÒ ¼ö ¾ø´Â ¿ÀÂ÷¸¦ ¹ß»ý½ÃÅ°°Ô µÈ´Ù. µû¶ó¼­, ȯ°æ¿äÀο¡ ÀÇÇÑ ¿ÀÂ÷ ¹ß»ýÀ» ¿ÏÈ­Çϱâ À§Çؼ­ ÁÖº¯ ȯ°æ º¯È­¸¦ °í·ÁÇÏ¿© ½Ç³» ÃøÀ§¿¡ ÀûÀýÇÑ APµéÀ» ¼±ÅÃÇÏ¿© »ç¿ëÇÏ´Â ±â¼úÀÌ ÇÊ¿äÇÏ´Ù. º» ³í¹®¿¡¼­´Â ÁÖº¯ ȯ°æÀÇ ¿µÇâÀ» °í·ÁÇÏ¿© ¾ÈÁ¤ÀûÀÎ AP¸¸À» ¼±ÅÃÇÏ´Â ¹æ½Ä°ú ÀÌ¿¡ ÀûÇÕÇÑ ÃøÀ§ ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. ¶ÇÇÑ ½ÇÇèÀ» ÅëÇÏ¿© Á¦¾ÈÇÑ ¹æ½Ä°ú ±âÁ¸ÀÇ AP ¼±Ãâ ¹æ½ÄÀÇ ¼º´ÉÀ» ºñ±³ ºÐ¼®ÇÏ¿´´Ù.
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(English Abstract)
Recently, an RSSI-based fingerprinting localization technology has been widely used in indoor location-based services. In the conventional fingerprinting method, as many APs as possible are used to increase the accuracy of location estimation. In another study, a part of APs having the strongest RSSI signal intensity are selected and used to reduce the time spent for positioning. However, it does not reflect the influence of RSSI occurred from the changes of the surrounding environments such as human movement or moving obstacles in a real environment. The environmental changes may cause the difference between the predicted RSSI signal strength value and the measured value, and thus occur an unpredictable error in the position estimation. Therefore, in order to mitigate the error caused by environmental factors, it is necessary to select APs suitable for indoor positioning estimation considering the changes in the surrounding environments. In this paper, we propose a method to select stable APs considering the influence of surrounding environments and derive a suitable positioning algorithm. In addition, we compare and analyze the performance of the proposed method with that of the existing AP selection methods through experiments.
Å°¿öµå(Keyword) ½Ç³»ÃøÀ§   ÇΰÅÇÁ¸°Æà  AP ¼±Ãâ   RSSI   Indoor Positioning   Fingerprinting   AP Selection   RSSI  
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