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¿µ¹®Ç¥Áظí Link Layer Protocol for e-Textile Network
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁØÀº ÀǺ¹¿¡¼­ÀÇ À¯¼±(wired) WPN ³×Æ®¿öÅ© Áï, ÀüÀÚÀÇ·ù Åë½Å¸ÁÀ» ´ë»óÀ¸·Î ÇÏ´Â ¿ä±¸»çÇ×, ³×Æ®¿öÅ© ±¸Á¶ ¹× ÇÁ·ÎÅäÄÝ¿¡ ´ëÇÏ¿© Á¤ÀÇ ¹× ±ÔÁ¤ÇÑ´Ù. ¿ä±¸»çÇ×À¸·Î´Â ÀüÀÚÀÇ·ù Åë½Å¸Á ȯ°æÀÌ °®´Â Ư¼ö¼ºÀ» °í·ÁÇÏ¿© ±ÔÁ¤Çϸç, ³×Æ®¿öÅ© ±¸Á¶´Â À¯¼± WPN ¿ä±¸»çÇ×À» °í·ÁÇÏ¿© ¹ö½º(bus) ÅäÆú·ÎÁö¸¦ ±ÔÁ¤ÇÑ´Ù. ±×¸®°í º» Ç¥ÁØ¿¡¼­ Á¤ÀÇÇÑ ÇÁ·ÎÅäÄÝÀº µ¥ÀÌÅ͸µÅ©°èÃþ ÇÁ·ÎÅäÄݷμ­, ¼¾¼­ µð¹ÙÀ̽º¸¦ À§ÇÑ ÇÁ·ÎÅäÄÝÀ» ±ÔÁ¤ÇÑ´Ù. ¶ÇÇÑ µ¥ÀÌÅ͸µÅ© ÇÁ·ÎÅäÄÝÀ» È°¿ëÇÏ¿© È£½ºÆ®¿¡¼­ ³ëµå¸¦ Ž»öÇÒ ¼ö ÀÖµµ·Ï CSMA(Carrier Sense Multiple Access)°¡ ¾ø´Â ³×Æ®¿öÅ©¿¡µµ Àû¿ë °¡´ÉÇÑ ³ëµå µð½ºÄ¿¹ö¸® ÇÁ·ÎÅäÄÝÀ» ±ÔÁ¤ÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à This standard specification defines the requirements, network topology and protocol for the e-Textile Network which is a wired WPN embedded in a clothes. Requirements are prescribed by analyzing the characteristics of e-Textile Network environment. The network topology is prescribed from the requirements of wired WPN. The protocol defined in this specification is a data link layer protocol and is mainly for connecting sensor devices to a host computing device. This specification also prescribes a node discovery protocol that can be used in a network without CSMA(Crrier Sense Multiple Access) accessing technology. The discovery protocol enables the host to recognize and search for a node which is newly added to the network or removed from the network without the users¡¯intervention.
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