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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ±×·¡ÇÁ ±â¹Ý Wi-Fi ½ÅÈ£ Áöµµ ±¸Ãà ¹× °»½Å ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Graph-based Wi-Fi Radio Map Construction and Update Method
ÀúÀÚ(Author) À¯¼öºó   ÃÖ¿øÀÍ   Subin Yu   Wonik Choi  
¿ø¹®¼ö·Ïó(Citation) VOL 44 NO. 06 PP. 0643 ~ 0648 (2017. 06)
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(Korean Abstract)
Wi-Fi ±â¹Ý ½Ç³» ÃøÀ§ ±â¹ý Áß ÇΰÅÇÁ¸°Æà ÃøÀ§´Â ³ôÀº Á¤¹Ðµµ·Î °¡Àå º¸ÆíÀûÀÎ ±â¼ú Áß ÇϳªÀÌ´Ù. ±×·¯³ª Ãʱ⠽ÅÈ£ Áöµµ ±¸Ãà°ú ÀÌ ÈÄ °»½Å °úÁ¤Àº ¼öµ¿À¸·Î ÀÌ·ç¾îÁ® ¸¹Àº ³ëµ¿·Â°ú ½Ã°£ ºñ¿ëÀ» ¹ß»ý½ÃÅ°´Â ´ÜÁ¡ÀÌ ÀÖ´Ù. º» ³í¹®¿¡¼­´Â ±×·¡ÇÁ¸¦ ±â¹ÝÀ¸·Î °¢ Á¤Á¡¿¡¼­ Ãʱ⠽ÅÈ£ Áöµµ¸¦ ±¸Ãà ÇÏ´Â °ÍÀ» Á¦¾ÈÇÑ´Ù. ±×¸®°í »ç¿ëÀڷκÎÅÍ È¹µæÇÑ ½ÅÈ£ ¼¼±â µ¥ÀÌÅ͸¦ °¢ °£¼±¿¡ ÂüÁ¶ À§Ä¡¸¦ »ý¼ºÇÏ¿© ÀÚµ¿À¸·Î ¸ÅÇÎÇÏ¿© ½ÅÈ£ Áöµµ¸¦ °»½ÅÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ¹æ½ÄÀº Ãʱ⠽ÅÈ£ Áöµµ¸¦ ±×·¡ÇÁÀÇ Á¤Á¡¿¡¼­¸¸ ½ÅÈ£¸¦ ¼öÁýÇÏ¿© ±¸ÃàÇÏ°í °»½ÅÀº ÀÚµ¿À¸·Î ¼öÇàÇϹǷΠ±âÁ¸ ÇΰÅÇÁ¸°Æà ¹«¼± ÃøÀ§ ±â¹ýÀÇ ´ÜÁ¡ÀÎ ³ëµ¿·Â°ú ½Ã°£ ºñ¿ëÀ» Å©°Ô °¨¼Ò½Ãų ¼ö ÀÖ´Ù. ½ÇÇè °á°ú, ½ÇÁ¦ À§Ä¡¿¡¼­ÀÇ µ¥ÀÌÅÍ¿ÍÀÇ ºñ±³¸¦ ÅëÇØ ½ÅÈ£ Áöµµ °»½Å ±â¹ýÀ» °ËÁõÇÒ ¼ö ÀÖ¾ú°í ÀÚµ¿À¸·Î ½ÅÈ£ Áöµµ¸¦ °»½ÅÇÏ´Â ÀÛ¾÷À¸·Î ¾à 3.2m, 3.5mÀÇ Á¤¹Ðµµ¸¦ °®´Â ½ÅÈ£ Áöµµ¸¦ ±¸ÃàÇÒ ¼ö ÀÖ¾ú´Ù.
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(English Abstract)
Abstract Among Wi-Fi based indoor positioning systems, fingerprinting localization is the most common technique with high precision. However, construction of the initial radio map and the update process require considerable labor and time effort. To address this problem, we propose an efficient method that constructs the initial radio map at each vertex based on a graph. In addition, we introduce a method to update the radio map automatically by mapping signal data acquired from users to the reference point created on each edge. Since the proposed method collects signal data manually only at the vertex of the graph to build the initial radio map and updates it automatically, our proposed method can dramatically reduce labor and time effort, which are the disadvantages of the conventional fingerprinting method. In our experimental study, we show validity of our radio map update method by comparing with the actual reference point data. We also show that our proposed method is able to construct the radio map with an accuracy of about 3.5m by automatically updating the radio map.
Å°¿öµå(Keyword) ¿ÍÀÌÆÄÀÌ   ÇΰÅÇÁ¸°Æà ÃøÀ§   ½ÅÈ£ Áöµµ ±¸Ãà   ½ÅÈ£ Áöµµ °»½Å   ±×·¡ÇÁ   Wi-Fi   fingerprinting positioning   radio map construction   radio map update   graph  
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