现代制造工程
現代製造工程
현대제조공정
MODERN MANUFACTURING ENGINEERING
2014年
11期
31-37
,共7页
状态树%装配流水线%在线调度
狀態樹%裝配流水線%在線調度
상태수%장배류수선%재선조도
assembly state tree%flow assembly line%online production scheduling
构建了一种基于装配状态树的具有三层体系结构的在线调度模型,实现“将生产计划和调度直接做到生产线上”。首先,将产品的装配状态变迁过程表达为一棵装配状态树;其次,用状态方程来描述装配流水线生产过程,建立从装配位置空间到装配状态空间的一一映射,在此基础上构造包括决策层、连接层及执行层的三层次在线调度体系结构。通过在制品的位置信息来推算在制品的装配状态,利用状态树计算在制品的调度空间;进而以调度空间为约束,根据决策层的生产任务安排,对连接层的调度方案进行在线调整和实时控制。
構建瞭一種基于裝配狀態樹的具有三層體繫結構的在線調度模型,實現“將生產計劃和調度直接做到生產線上”。首先,將產品的裝配狀態變遷過程錶達為一棵裝配狀態樹;其次,用狀態方程來描述裝配流水線生產過程,建立從裝配位置空間到裝配狀態空間的一一映射,在此基礎上構造包括決策層、連接層及執行層的三層次在線調度體繫結構。通過在製品的位置信息來推算在製品的裝配狀態,利用狀態樹計算在製品的調度空間;進而以調度空間為約束,根據決策層的生產任務安排,對連接層的調度方案進行在線調整和實時控製。
구건료일충기우장배상태수적구유삼층체계결구적재선조도모형,실현“장생산계화화조도직접주도생산선상”。수선,장산품적장배상태변천과정표체위일과장배상태수;기차,용상태방정래묘술장배류수선생산과정,건립종장배위치공간도장배상태공간적일일영사,재차기출상구조포괄결책층、련접층급집행층적삼층차재선조도체계결구。통과재제품적위치신식래추산재제품적장배상태,이용상태수계산재제품적조도공간;진이이조도공간위약속,근거결책층적생산임무안배,대련접층적조도방안진행재선조정화실시공제。
An online scheduling model with three-layer structure for flow assembly production is presented.Firstly,the assembly state transition procedure of products is described by assembly state tree,while the process of flow assembly production is repre-sented by a state equation.Then,the production scheduling structure of decision layer,intermediate layer and executive layer is constructed.At the executive layer,the assembly state of work-in-process can be acquired through monitoring the location informa-tion,and thereby the scheduling space of them will be calculated with the assembly state tree.According to the production plan-ning at the decision layer,the online scheduling for the flow assembly line can be achieved by adjusting the scheduling scheme at the intermediate layer within the scheduling space.