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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.4, no.2, 1995³â, pp.203-210
Å丶ÅäÀÇ ¾ç¾×Àç¹è½Ã Programmable Logic Controller¿¡ ÀÇÇÑ pH¿Í ECÀÇ ÀÚµ¿Á¶Àý
( Automatic Control of pH and EC by Programmable Logic Controller in Nutriculture of Tomato(Lycopersicon esculentum Mill.) )
±èÇüÁØ;±èÁøÇÑ;³²À±ÀÏ; ¿ø¿¹¿¬±¸¼Ò;ÃæºÏ´ëÇб³ ¿ø¿¹Çаú;¿ø¿¹¿¬±¸¼Ò;
 
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±¹³» ¿ø¿¹½Ã¼³ÀÇ Áõ°¡¿Í ´õºÒ¾î ¾ç¾×Àç¹è³ó°¡µµ Áõ°¡Ãß¼¼¿¡ ÀÖ¾î Àú·ÅÇÑ ±¹»ê ¾ç¾×Àç¹è ÀÚµ¿È­±â±â°¡ ³ó°¡¿¡ ÇÊ¿äÇÑ ½ÇÁ¤ÀÌ´Ù. ÀÌ¿¡ µû¸¥ ¾ç¾×Àç¹èÀÇ EC¿Í pH¸¦ ÀÚµ¿Á¶ÀýÇϱâ À§ÇÏ¿© ¸¶ÀÌÅ©·ÎÄÄÇ»ÅÍÀÇ ÀÏÁ¾ÀÎ PLC(programmable logic controller)¸¦ ÀÌ¿ëÇÑ ÀåÄ¡¸¦ °³¹ßÇϰí Àç¹è½ÇÇèÀ» ½Ç½ÃÇÑ °á°ú¸¦ ¿ä¾àÇÏ¸é ´ÙÀ½°ú °°´Ù. 1. Ladder diagram¾ð¾î¸¦ »ç¿ëÇÏ¿© ¾ç¾×Àç¹èÀÇ ÀÚµ¿È­ ÇÁ·Î±×·¥À» ÀÛ¼ºÇÏ¿´´Ù. 2. PLC¸¦ ÀÌ¿ëÇÏ¿© ¾ç¾×ÀÇ EC, pH¼öÁØÀ» 1.70-l.72mS/cm, 6.1-6.5·Î Àü »ýÀ°±â°£ µ¿¾È À¯Áö½Ãų ¼ö ÀÖ¾ú´Ù. 3. ´ëÁ¶±¸¿¡ ºñÇÏ¿© 󸮱¸°¡ »óǰ°ú(´çµµ 5.0 oBrix, »êµµ 0.4% ÀÌ»ó) ¹× ¼ö·®¼ºÀÌ ³ôÀº °á°ú¸¦ ¾ò¾ú´Ù. 4. ½Ä¹°Ã¼ÀÇ ¹«±â¼ººÐ ÇÔ·®Àº 󸮱¸°¡ ´ëÁ¶±¸¿¡ ºñÇØ ÀüüÀûÀ¸·Î ³ô¾Ò´Ù.
Using the programmable logic controller (PLC), a kind of microcomputer, a facility to control EC and pH automatically in nutriculture of tomato was developed. A program for the automatic control of nutriculture was written in ladder diagram language. EC and pH levels of nutrition solution could be maintained at 1.70-1.72 and 6.1-6.5, respectively, during the entire growing period. Better fruits and higher yield were obtained in automatic control plot than in the control plot. Inorganic elements in plant were higher in the former than in the latter.
 
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.4, no.2, 1995³â, pp.203-210
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199511922404687)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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