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ÇѱÛÇ¥ÁØ¸í ¿¡³ÊÁö Àü·Â ºÐ¾ß »ç¹°ÀÎÅͳÝ(e-IoT) – Á¦3ºÎ: µ¥ÀÌÅÍ º¸°í ±Ô°Ý
¿µ¹®Ç¥Áظí Internet of Things in Electricity and Energy Domain(e-IoT) – Part 3: Data Report specification
Çѱ۳»¿ë¿ä¾à ¿¡³ÊÁö Àü·Â ºÐ¾ß »ç¹°ÀÎÅÍ³Ý ½Ã½ºÅÛ(e-IoT)¿¡¼­´Â ³×Æ®¿öÅ© ´ë¿ªÆø Á¦ÇѶ§¹®¿¡ È¿À²ÀûÀ¸·Î µ¥ÀÌÅ͸¦ º¸°íÇÏ´Â ¹æ¾ÈÀ» ÇÊ¿ä·Î ÇÑ´Ù.
º¹ÇÕ µ¥ÀÌÅÍ º¸°í´Â 2Á¾ ÀÌ»óÀÇ ¼¾¼­¸¦ žÀçÇÑ ÀåÄ¡¿¡¼­ »ç¿ëµÇ´Â º¸°í ¹æ¾ÈÀÌ´Ù. 2Á¾ ÀÌ»óÀÇ ¼¾¼­¸¦ žÀçÇÑ ÀåÄ¡µéÀÇ °æ¿ì º¸°íÇØ¾ß ÇÒ ¼¾¼­ °ªÀÌ ´Ù¼ö°¡ µÇ°í, ÁÖ±âÀûÀÎ º¸°í¸¦ ÇØ¾ß ÇÒ °æ¿ì °¢ ¼¾¼­º°·Î CoAP Observe¸¦ ½ÇÇàÇؼ­ º¸°í ¸Þ½ÃÁö¸¦ º°µµ·Î Àü¼ÛÇÏ°Ô µÈ´Ù. ÇÏÁö¸¸ LPWA¿Í °°ÀÌ Åë½Å ´ë¿ªÆøÀÌ ÀÛÀº IoT ³×Æ®¿öÅ© ȯ°æ¿¡¼­ °¢ ¼¾¼­µé ¸¶´Ù ÁÖ±âÀûÀ¸·Î ¼¾¼­ °ªÀ» Àü¼ÛÇÏ´Â °ÍÀº ³×Æ®¿öÅ© Æ®·¡ÇÈ ¹®Á¦¸¦ ¾ß±âÇÒ ¼ö ÀÖ´Ù. º¹ÇÕ µ¥ÀÌÅÍ º¸°í¿¡¼­´Â ´Ù¼öÀÇ ¼¾¼­°ªÀ» ÇϳªÀÇ º¸°í ¸Þ½ÃÁö¿¡ Àü´ÞÇÒ ¼ö ÀÖ´Â ¹æ¾ÈÀ» Á¤ÀÇÇÑ´Ù.
Historical µ¥ÀÌÅÍ º¸°í´Â °èÃøµÈ µ¥ÀÌÅ͸¦ ¸Å¹ø Àü¼ÛÇÏÁö ¾Ê°í ÀÏÁ¤ ±â°£ÀÇ µ¥ÀÌÅ͸¦ ¸ð¾Æ¼­ Àü¼ÛÇÏ´Â ¹æ¾ÈÀÌ´Ù. º¸°í ÁÖ±â¿Í ÃøÁ¤ Áֱ⸦ ºÐ¸®Çϱâ À§ÇØ º¸°í ÁÖ±â¿Í º°µµ·Î °èÃø Áֱ⸦ Ãß°¡ Á¤ÀÇÇÏ¿´´Ù. ¶ÇÇÑ ÇöÀç °ª»Ó¸¸ ¾Æ´Ï¶ó °ú°ÅÀÇ °ªÀ» Ç¥ÇöÇϱâ À§ÇÑ ¹æ¾ÈÀ¸·Î JSONÀÇ ¡®Time¡¯ º¯¼ö¸¦ ÀÌ¿ëÇÏ´Â ¹æ¾È°ú »õ·Ó°Ô Á¤ÀÇÇÑ ¸®¼Ò½º¸¦ »ç¿ëÇÏ´Â ¹æ¾ÈÀÌ ÀÖ´Ù.
¿µ¹®³»¿ë¿ä¾à There is a need for efficient data reporting due to network bandwidth limitation in e-IoT.
Complex data reporting is a reporting method used in devices with more than two sensors. In case of devices equipped with two or more sensors, there are many sensor values to be reported, and if periodic reporting is required, CoAP Observe is executed for each sensor to transmit a report message separately. However, in IoT network environment with a constrained bandwidth such as LPWA, periodically transmitting sensor values for each sensor may cause a network traffic problem. Complex data reporting defines a way to deliver multiple sensor values to a single report message.
Historical data reporting is a method of transmitting the gathering data for a certain period of time without transmitting the measured data every time. In order to separate the reporting period from the measuring period, The standard additionally defines the measuring period separately from the reporting period. There is also a way to use the 'Time' variable of JSON and a newly defined resource to represent past values as well as current values.
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