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¿µ¹® Ç¥Áظí Exposure assessment of wireless chargingsystem for drone (Technical Report)
ÇÑ±Û ³»¿ë¿ä¾à º» ±â¼úº¸°í¼­´Â µå·Ð¿ë ¹«¼± ÃæÀü ½Ã½ºÅÛ¿¡ ÀÇÇÑ ÀüÀÚÆÄ ÀÎü³ëÃâ·®ÀÇ ICNIRP ±¹Á¦Àü ÀÚÆÄÀÎüº¸È£±âÁØ¿¡ ´ëÇÑ Áؼö ¿©ºÎ¸¦ ÆÇ´ÜÇϱâ À§ÇÑ Æò°¡ ¹æ¹ý ¹× ±× °á°ú¸¦ ±â¼úÇÏ¿´´Ù. µå·Ð¿ë ¹«¼± ÃæÀü ½Ã½ºÅÛ¿¡ ´ëÇÑ ÀüÀÚÆÄ ÀÎü³ëÃâ·® Æò°¡ »ç·Ê´Â IEC TR 62905¿¡¼­ Á¦°øÇÏ°í ÀÖ´Â Æò°¡ ÀýÂ÷¸¦ Àû¿ëÇÏ¿© Á¶»ç¡¤ºÐ¼®ÇÏ¿´´Ù. ÀüÀÚÆÄ ÀÎüº¸È£±âÁØ¿¡ ´ëÇÑ ÀûÇÕ¼º ¿©ºÎ¸¦ ÆÇ´ÜÇϴµ¥ À־ IEC TR 62905¿¡¼­´Â ±âÁØ ·¹º§ ¹× ±âº»ÇÑ°è Æò°¡ µî 4 ´Ü°è ÀýÂ÷¸¦ Á¦½ÃÇÏ°í ÀÖÀ¸¸ç, °¢°¢ÀÇ ´Ü°èº° °á°ú¿¡ µû¶ó ÀûÇÕ¿©ºÎ°¡ °áÁ¤µÈ´Ù. µû¶ó¼­ º» º¸°í¼­¿¡¼­µµ IEC TR¿¡¼­ Á¦½ÃÇÑ ÀýÂ÷¿¡ µû¶ó ¸ÕÀú, µå·Ð¿ë ¹«¼± ÃæÀü ½Ã½ºÅÛÀÇ ¼Û½Å Àü·ÂÀ» Æò°¡ÇÏ¿© ±¹ºÎ SAR·ÎºÎÅÍ °è»êµÈ ÀúÀü·Â ¿¹¿Ü ·¹º§(low-power exclusion level)°ú ºñ±³ÇÏ¿´´Ù. µÎ ¹ø° ´Ü°è¿¡¼­´Â µå·Ð¿ë ¹«¼± ÃæÀü ½Ã½ºÅÛ ÁÖº¯¿¡¼­ ±âÁØ ·¹º§ Áؼö ¿©ºÎ¸¦ Æò°¡Çϱâ À§ÇØ ÃÖ´ë ÀÚ±âÀå °­µµ¸¦ ÃøÁ¤ÇÏ°í ±× °á°ú¸¦ ºÐ¼®ÇÏ¿´´Ù. ¼¼ ¹ø° ´Ü°è¿¡¼­´Â °áÇÕ ÀÎÀÚ(coupling factor)¸¦ ÀÌ¿ëÇÏ¿© ±âº»ÇÑ°è¿¡ ´ëÇÑ ÀÔ»ç ÀÚ±âÀåÀÇ ¸¸Á·¿©ºÎ¸¦ Æò°¡ÇÏ¿´´Ù. ¸¶Áö¸· ´Ü°è·Î¼­ ±âº»ÇÑ°è¿¡ Áؼö ¿©ºÎ Æò°¡Çϱâ À§Çؼ­ À¯µµ Àü·ù ¹Ðµµ, ³»ºÎ Àü±âÀå°ú SARÀ» °è»êÇÏ¿© µå·Ð¿ë ¹«¼± ÃæÀü ½Ã½ºÅÛ¿¡ ´ëÇÑ ÀüÀÚÆÄ ÀÎüº¸È£±âÁØ ÀûÇÕ¼º ¿©ºÎ¸¦ ÃÖÁ¾ °áÁ¤ÇÏ¿´´Ù.
ÇÑÆí, º» »ç·Ê º¸°í¼­ÀÇ ÀÌÇصµ¸¦ ³ôÀ̱â À§ÇØ µå·Ð¿ë ¹«¼± ÃæÀü ½Ã½ºÅÛ ¸ðµ¨¸µ¿¡ ÇÊ¿äÇÑ Á¤º¸¿Í ½ÇÁ¦ µ¿ÀÛÀ» °í·ÁÇÑ µå·Ð¿ë ¹«¼± ÃæÀü ½Ã½ºÅÛÀÇ ³ëÃ⠽󪸮¿À, ±×¸®°í ÃøÁ¤ ¹× Çؼ® ¹æ¹ýÀ» ±â¼úÇÏ¿´´Ù.
¿µ¹® ³»¿ë¿ä¾à The technical report presents the case study of exposure assessment for drone wireless charging system according to ICNIRP guideline. The case study refers to IEC TR 62905. There are four steps as described IEC TR 62905 assess the wireless charging exposure and demonstrate compliance with the basic restrictions and/or reference levels. In the case study, we first evaluated transmit power of drone wireless charging system. Second, incident magnetic fields around the drone wireless charging system which is measured within 20 cm is evaluated and the compliance results is analyzed. the next, the incident magnetic fields using coupling factor is assessed, Finally, the induced current density, internal electric field, and SAR is evaluated for different exposure scenarios. The modeling requirement, exposure scenario considered installation environment, measurement method, and numerical computation method of drone wireless charging system are provided in order to increase understand of the report
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