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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) ½Ç³»/½Ç¿Ü ÄÁÅؽºÆ® ÀüÀ̸¦ °í·ÁÇÑ ÀúÀü·Â ¼¾½Ì ¸ðµ¨
¿µ¹®Á¦¸ñ(English Title) Sensing Model for Reducing Power Consumption for Indoor/Outdoor Context Transition
ÀúÀÚ(Author) ±è´ö±â   ¹ÚÀçÇö   ÀÌÁ¤¿ø   Deok-Ki Kim   Jae-Hyeon Park   Jung-Won Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 43 NO. 07 PP. 0763 ~ 0772 (2016. 07)
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(Korean Abstract)
´Ù¾çÇÑ ¼¾¼­°¡ ºÎÂøµÈ ½º¸¶Æ® ÆùÀÇ º¸±ÞÀ¸·Î »óȲÀÎÁö ¾îÇø®ÄÉÀÌ¼Ç ½ÃÀåÀÇ ±Ô¸ð°¡ ¹ß´ÞÇÏ°í ÀÖ´Ù. ÇÏÁö¸¸, ÇÑÁ¤µÈ Àü·ÂÀ¸·Î ÀÎÇØ ¿øÈ°ÇÑ ¼­ºñ½º¸¦ Á¦°ø¹Þ±â´Â ¾î·Æ´Ù. »óȲÀÎÁö ¾îÇø®ÄÉÀÌ¼Ç °üÁ¡¿¡¼­ º¼ ¶§, ÄÁÅؽºÆ®ÀÇ Á¾·ù¿¡ µû¶ó ÇÊ¿äÇÑ ¼¾½Ì Á¤º¸°¡ ´Ù¸£±â ¶§¹®¿¡, ÄÁÅؽºÆ®ÀÇ ÀüÀÌ°¡ ¹ß»ýÇϸé ÇÊ¿äÇÑ ¼¾¼­µéÀÇ º¯È­·Î ÀÎÇØ ¼¾¼­ ¸ðµâµéÀ» ²ô°í ÄÑ´Â °úÁ¤¿¡¼­ÀÇ Àü·Â ¼Òºñ°¡ Å©¸ç, Á¤È®ÇÑ ¼¾½ÌÀÌ µÇÁö ¾Ê´Â »óȲ¿¡¼­ °úµµÇÑ ¼¾½ÌÀ» ½ÃµµÇϰԵȴÙ. º» ³í¹®¿¡¼­´Â ½Ç³»/½Ç¿Ü ÄÁÅؽºÆ® ÀüÀÌ¿¡¼­ ¹ß»ýÇÏ´Â Àü·Â ¼Ò¸ð¿¡ ÃÊÁ¡À» µÎ°í ÇØ´ç ÄÁÅؽºÆ®¿Í ¿¬°üµÈ ¼¾¼­ È°µ¿À» ¸ðµ¨¸µ ÇÑ µÚ, ÄÁÅؽºÆ® ÀüÀÌ°¡ ÀϾ´Â ½ÃÁ¡À» °¨ÁöÇÏ¿© Àü·Â ¼Ò¸ð¸¦ ÃÖ¼ÒÈ­ÇÒ ¼ö ÀÖ´Â freezing ¾Ë°í¸®ÁòÀ» Àû¿ëÇÏ´Â ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. ½ÃÁßÀÇ ½Ç³»/½Ç¿Ü À§Ä¡ÃßÀû ¾îÇø®ÄÉÀ̼ÇÀ» ÀÌ¿ëÇÏ¿© ÄÁÅؽºÆ® ÀüÀÌ°¡ ¹ß»ýÇÏ´Â ÁöÁ¡¿¡¼­, Á¦¾ÈÇÏ´Â ±â¹ýÀÇ À¯¹«¿¡ µû¸¥ ¼ÒºñÀü·Â Â÷À̸¦ ½ÇÃøÇÏ¿´À¸¸ç, ½ÃÁßÀÇ ¾îÇø®ÄÉÀ̼ÇÀÇ ½ÇÁ¦ ±¸µ¿ Áß ÄÁÅؽºÆ® ÀüÀÌ°úÁ¤¿¡¼­ÀÇ Àü·Â Àý°¨ÀÌ ÀÖ¾úÀ¸¸ç, Àüü ½Ã³ª¸®¿À¿¡¼­ ¾à 20%ÀÇ Àü·Â Àý°¨ È¿°ú¸¦ ¾ò¾ú´Ù.
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(English Abstract)
With the spread of smartphones containing multiple on-board sensors, the market for context aware applications have grown. However, due to the limited power capacity of a smartphone, users feel discontented QoS. Additionally, context aware applications require the utilization of many forms of context and sensing information. If context transition has occurred, types of needed sensors must be changed and each sensor modules need to turn on/off. In addition, excessive sensing has been found when the context decision is ambiguous. In this paper, we focus on power consumption associated with the context transition that occurs during indoor/outdoor detection, modeling the activities of the sensor associated with these contexts. And we suggest a freezing algorithm that reduces power consumption in context transition. We experiment with a commercial application that service is indoor/outdoor location tracking, measure power consumption in context transition with and without the utilization of the proposed method. We find that proposed method reduces power consumption about 20% during context transition.
Å°¿öµå(Keyword) »óȲÀÎÁö ¾îÇø®ÄÉÀ̼Ǡ  ÀúÀü·Â ¼¾½Ì ±â¹ý   ½Ç³»/½Ç¿Ü ÀÎÁö   ¸ð¹ÙÀÏ ±â±â   context aware application   low-power sensing method   indoor/outdoor detection   mobile devices  
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