《智能阀门定位器的研究与开发.pdf》由会员分享，可在线阅读，更多相关《智能阀门定位器的研究与开发.pdf（4页珍藏版）》请在三一文库上搜索。
1、, 2010,37 (4) : 6466 Control and Instruments in Chemical Industry , ( ,710021) :, ,PI D , :; PI D; : TP214: A: 1000 3932(2010)04 0064 03 1 , , ,: , , , , , , , , , ,; ,; , 2 2. 1 AVRATmega16, , , ,A /D,D /A, VR , , AVRATmega16 4. 55. 5 V,40, ,10A /D, 2. 2 1 1 , , , , ,RS485 5 V12 V 90%10% () (YF 3)
2、A : 2010 01 27 :2007 0701 (1) :2, 420 mA ,LM258 , PA0420 mA 05 V, , PA1, PA0PA1, (2) : ATmega165 V ,12V, ,LM317 +12 V+5 V R8, D2,D3, ,3 2 3 (3) RS485: RS485 MAX485,MAX4855 V, ,ATmega16TTL RS485LED , 3 , , , ; , ;, PI D 3. 1 , , , , GM(,) , G M (1,1) , , , , G M (1,1) : y (0) (k, i)+ ag(k)z (1) (k, i
3、)= bg(k)(1) ,z (1) ( k, i)= y (1) (k, i)+ y (1) (k, i -1) 2 , (1) : dy (1 ) (t) dt + agy (1) ( t)= bg(2) : ag(k) bg( k) =(B TB)- 1BTY (3) : B = - y (1) (k,1)+ y (1) (k,2) 2 1 - y (1) (k,2)+ y (1) (k,3) 2 1 y (1) (k, n -1)+ y (1) (k, n) Y = y ( ) (,), y ( ) (,3), , y ( ) (,) T ( ) ,y( )+ 56 4. 1 1 -
4、2 1 0 k 2 0 k 0 k n 2tk1 : y (1) p ( k +1)= y (0) ( k,1) - bg ag e - agk + bg ag (4) (4)(k +M) , (k + M) : y (0) p ( k + M)= y (0) ( k) - bg ag e - agM (1- e - ag )(5) 3. 2 , uu, , u u, :u;u ; c 46 4 5 6 , , , , 1 u u NBNSOPSPB NBPBPBPSPSPS NSPBPSPSONS OPSPSON SNS PSPSONSN SNB PBN SNSNBNBNB 1,Mamda
5、ni,R:R = n i =1 (AiBi Ci),A,B, C= (A B)RC, ,C , 3. 3 , , , , PI D, ,; ,Fuzzy PI D ;i(420mA), v = Yp- r,r7% ,; r7%,PI D , PI D, , 7 ,k n,k +M ,e( k) = r( k) - y( k + M)e(k)= r(k)- y(k) , , (6) 66 37 17 Designed of O ilW ellsW ir eless RemoteM on itor ing System Based on Embedded Technology CHENG Bao
6、zhi, GUO Xian feng,CHEN Chun yu,WANG Yu ling,CUI Hai ying (Depa rtment of Physica l and Electricity Infor ma tion Engineering, Daqing Normal University, Daqing163712, China) Abstract:In order to automate the acquisition of oilwell parameters and control them through the network technolo gy, the sche
7、me of establishing an embedded remote system to monitor the oil well was proposed based upon the ad vantages of ZigBee and GPRS technologies. The embedded controller cored terminal acquisition, hardware design of wireless transmission unit, and that of control software and structure construction of
8、themanagement platfor m were an alyzed. The control centerwould monitor oilwell s conditionswith ZigBee and GPRS basedwireless network technol ogies. The system benefits the automatic control of oil well. Key words:oil well remote monitoring; ARM and uCLinux; embedded system ( 66 ) 7 , PI D,PI D PI
9、D : G(s) = 12.3e -5s 0.8s 2 -40.7s , 8 8 4 , , , , PI D , , , , , 0. 5% : 1.M .: ,2005: 205 - 207. 2.M .: ,1997: 201 - 221. 3. M .:, 1987. 4,.P I D J., 2008, 29(10): 2062 - 2066 . 5,. J . ,2007, 28(4): 718 - 721. 6.G M(1, 1)G M(2, 1) D :, 2007: 14 - 23. 7,. PID J ., 2007, 27(1): 72 - 75. 8. J . ,200
10、8, 35(4): 85 - 86. Research and Developm en t of Smar t Valve Positioner LI Qi,LUAN Xiang he (College of Electrical f zzy;I D;y 67 37 accuratel .imulation results ointelligent valve positioner s stem indicate that the smart valve has strong capabilit o resisting disturbance and can achieve high control precision. ewords:positioner ucontrol Pgre prediction