Title
Real-time Control of Flexible Production Systems by Acquiring
Rules and Hypothetical Reasoning( 内容の要旨(Summary) )
Author(s)
Rizauddin Bin Ramli
Report No.(Doctoral
Degree)
博士(工学) 甲第333号
Issue Date
2008-03-25
Type
博士論文
Version
URL
http://hdl.handle.net/20.500.12099/23518
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氏名(本籍)
学 位 の 種 類学位授与番号
学位授与
日付 専 攻 学位論文題目学位論文審査委員
RizauddinBinRamli(マレーシア) 博 士(工学)甲第
333 号 平成 20 年 3 月 25 日 生産開発システム工学専攻 Real-timeControlofFlexibleProductionSystemsbyAcquiringRules andHypotheticalReasoning(多品種生産システムにおけるルール獲得と仮説推論によるリアルタイム
制御)
王 授教
彦雄男
秀 文 和 本方 山 野 谷 授授授教教教
) ) 査 査 主 副 ( ( 志 剛論文内容の要旨
Intoday,sstyleofflexibleproductions,thecustomer-drivenmanufacturingsystemhas beenglVenagreatattentionbecauseitaimstdrespondquicklytocopewithcustomerdemands・rIb meet the demands meticulously,・the manufacturing systemitselfmust beableto adopt nexibilitylnits structure andfunctions・Product and
processimprovements
are widely acclaimedtoprovideeconomicsgalnSandtoincreasefkxibility,reSultinglnaquickresponseand arapid Adaptability tochanglngmarket conditions・However,mOStOftheproduction facilitiesaremadeasacomplexdynamicalenvironmentthatisalwaysplaguedbyunexpected
situations.The unexpected situations are difficult to be dealtwith since the scheduung PrOCeSSeSarealwaysdonethrougho掛1ineplannlngOrbypre-decided・SCheme・TbsoIvethe dimculties,real-timecontrolorschedulingisindispensable・ ThetwotypicaltypesoftheflexibleproductionsystemsaretheFlexiblerItansftrLine
(FrりandFlexibleManufacturingSystems(FMS)・Inthisthesis,theresearchforreal-time
controlbyintelligentdecision-makingintheflexibleproductionsystems,FrLandFMS,has beenconducted.Flrst,intheproblemsofFTL
attentionsWereglVentOthepartsinputproblemofapullproduction system where two FrLs consist of Up-Stream productionline and Down-Stream productionline while operating underJIT production management・The Up-StreamproductionlineprocessestherawmaterialaRerrecelVlngthemfromsuppliers,and
afterprocesslngthem,deliverstheprocessedproducttotheDown-Streamproductionlineviaa COnVeyer・Inthethesis,anOVelideaofpartsinputreal-timecontroIsystemcalledAlgorithmfor
Real-Time ControlofPartInput
System(ARTCOPS)is
proposed・The characteristic ofARTCOPSis jntelligent real-time controlbased onIF-THEN ruleswith an analoglCal
-25-Out-Pattern COnCePt thatis usedto decide the partsinput to the bay ofthe Up-Stream PrOductionlines・ARTCOPSwi11notnegativelyafEtcttheDown-Streamproductionlineeve
thoughthe actualdemands丘omthe Down-Streamproductionline are difEtrentfromthe Pre-decidedproductionschedule・Simulationsofvirtualproductionsystemshavebeencarried
OuttOVerifythatARTCOPSisusefu1inreal-timecontrolalthoughtheproductionordersare
di蝕rentfromthepre-decidedproductionscheduling・Second,intheproblemsofFMS,arealこtimecontrolapproachisusedto血cilitate decision-makingforrealizinganAntonomousDecentralizednexibleManufacturingSystem
(AD-FMS)・The
AD-FMSaims at high production e疏ciencybygiving
self・COntrOlordecentralizingtheplan,designandoperationoftheFMS・Inthethesis,thetypicalcomputer
SyStem thatis necessary for realizing an AD-FMS by us1ng intelligent real-time decision-makingcalledIntenigentDecisionbyAnticipationandSimulationswithHypotheses