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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 20 / 21

ÇѱÛÁ¦¸ñ(Korean Title) ¸ÓÀú¸®Æ¼ »ùÇøµ µ¥ÀÌÅÍ ±â¹Ý À§Ä¡ ÃßÁ¤½Ã½ºÅÛ
¿µ¹®Á¦¸ñ(English Title) Location Estimation System based on Majority Sampling Data
ÀúÀÚ(Author) ¹Ú°Ç¿µ   Àü¹ÎÈ£   ¿ÀâÇå   Geon-Yeong Park   Min-Ho Jeon   Chang-Heon Oh  
¿ø¹®¼ö·Ïó(Citation) VOL 18 NO. 10 PP. 2523 ~ 2529 (2014. 10)
Çѱ۳»¿ë
(Korean Abstract)
½Ç¿Ü¿¡¼­´Â GPS¸¦ ±â¹ÝÀ¸·Î ÇÏ´Â ´Ù¾çÇÑ À§Ä¡ ÃßÁ¤ ½Ã½ºÅÛÀ» »ç¿ëÇÏ¿© À§Ä¡ ÃßÁ¤ ¼­ºñ½º¸¦ Á¦°øÇÒ ¼ö ÀÖÀ¸³ª, ½Ç³»¿¡¼­´Â °¡½ÃÀ§¼ºÀÇ ºÎÁ·°ú ½ÅÈ£ÀÇ ¹Ì¾àÀ¸·Î GPS¸¦ »ç¿ëÇÒ ¼ö ¾ø¾î ½Ç³»¿¡ Á¸ÀçÇÏ´Â ÀÚ¿øÀ» ±â¹ÝÀ¸·Î ÇÏ´Â À§Ä¡ÃßÁ¤½Ã½ºÅÛÀ» »ç¿ëÇÏ°í ÀÖ´Ù. ƯÈ÷ WLANÀÇ ½ÅÈ£¸¦ ÀÌ¿ëÇÏ´Â fingerprinting ±â¹ýÀº AP¿¡¼­ Á¦°øÇÏ´Â RSSI¸¦ ÀÌ¿ëÇÏ¿© À§Ä¡¸¦ ÃßÁ¤Çϱ⿡ ½Ç³»¿¡¼­ ÀÌ¿ëÇϱ⿡ ÀûÇÕÇÏ´Ù. ÇÏÁö¸¸ fingerprinting ±â¹ýÀº fingerprinting mapÀ» ±¸ÃàÇÏ´Â offline ´Ü°è¿¡¼­ ¾ó¸¶³ª Á¤È®ÇÑ µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿´´Â°¡¿¡ µû¶ó À§Ä¡ ÃßÁ¤ÀÇ Á¤È®µµ°¡ ´Þ¶óÁö´Â ´ÜÁ¡ÀÌ Á¸ÀçÇÑ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ´ÜÁ¡À» º¸¿ÏÇϱâ À§ÇØ fingerprinting mapÀ» ±¸ÃàÇÏ´Â ´Ü°è¿¡¼­ ´Ù¼öÀÇ µ¥ÀÌÅ͸¦ »ùÇøµ ÇÏ¿© ±× Áß ºóµµ°¡ ³ôÀº µ¥ÀÌÅ͸¦ ÀúÀåÇÏ¿© À§Ä¡ ÃßÁ¤ Á¤¹Ðµµ¸¦ ³ôÀÌ´Â À§Ä¡ ÃßÁ¤ ½Ã½ºÅÛÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ¸ÓÀú¸®Æ¼ »ùÇøµ µ¥ÀÌÅÍ ±â¹ÝÀÇ À§Ä¡ ÃßÁ¤ ½Ã½ºÅÛÀº map¿¡ ÀúÀåµÇ¾î¾ß ÇÏ´Â RSSI¸¦ Ŭ¶óÀ̾ðÆ®¿Í ¼­¹ö¿¡¼­ °¡Àå ºóµµ°¡ ³ôÀº RSSIµ¥ÀÌÅ͸¦ ÇÊÅ͸µÇÏ¿© mapÀ» ±¸ÃàÇÑ ÈÄ À¯»ç°Å¸®ÃøÁ¤¹æ½Ä¿¡ ÀÇÇØ À§Ä¡¸¦ ÃßÁ¤ÇÏ´Â ½Ã½ºÅÛÀÌ´Ù. ½ÇÇè°á°ú ÃÖ¼Ò 87.5 %, ÃÖ´ë 90.4%ÀÇ À§Ä¡ ÃßÁ¤ Á¤¹Ðµµ¸¦ °¡Áö´Â °ÍÀ» ¾Ë ¼ö ÀÖÀ¸¸ç, ÃÖ¼Ò 0.25 ~ 2.72mÀÇ ¿ÀÂ÷ ¹üÀ§¸¦ °¡Áö´Â °ÍÀ» È®ÀÎ ÇÒ ¼ö ÀÖ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
Location estimation service can be provided outdoors using various location estimation system based on GPS. However, location estimation system is based on existing indoor resources as GPS cannot be used because of insufficient visible satellites and weak signals. The fingerprinting technique that uses WLAN signal, in particular, is good to use indoors because it uses RSSI provided by AP to estimate location. However, its accuracy may vary depending on how accurate data the offline stage used where the fingerprinting map is built. The study sampled various data at the stage that builds the fingerprinting map and suggested a location estimation system that enhances its precision by saving the data of high frequency among them to improve this problem. The suggested location estimation system based on majority sampling data estimates location by filtering RSSI data of the highest frequency at the client and server to be saved at a map, building the map and measuring a similar distance. As a result of the test, the location estimation precision stood at minimum 87.5 % and maximum 90.4% with the margin of error at minimum 0.25 to 2.72m.
Å°¿öµå(Keyword) °íÁ¤¹Ð À§Ä¡ ÃßÁ¤   »ùÇøµ   ÇΰÅÇÁ¸°Æà ±â¹ý   ¸ÓÀú¸®Æ¼   À¯»ç°Å¸® ÃøÁ¤   High-precision location estimation   Sampling   Majority   fingerprinting techniques   Euclidean distance  
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