Firstly , this dissertation presents the process model of cross - enterprise project scheduling , analyzes the cross - enterprise project scheduling process and proposes a distributed project scheduling model and a manufacturing oriented scheduling structure 首先,本文给出了跨企业项目计划模型,对跨企业项目的计划过程进行了深入分析,并提出了跨企业项目计划的分布式模型以及面向制造业的跨企业项目计划结构。
And then on the basis of background of mold & die industry , it analyzes that the clients cooperating with the mold & die enterprise take part in production process with the view of client . and after analyzing and calculating the obtained data from the schedule process , it gives the result to client and builds up the algorithm model of data collection . the algorithm model analyzes the search method of order ' s start process time and finish process time and builds up the single model and complex model of the order ' s fulfilling state according to devices 本文首先介绍了制造业信息化的发展状况,根据模具企业的特点分析了课题确立的背景和意义,然后以模具行业为背景,从客户的角度对客户和模具企业共同参入制造过程进行分析,对从排产过程中提取的数据进行分析、综合计算,并给出客户所需要的数据,建立了数据采集的算法模型,该模型中对订单的开始时间和预计结束时间的搜索方法进行了分析,并根据生产设备的不同情况建立了订单完成百分比的单一模型和复合模型,其复合模型适用于实际的企业生产,可以应用于实践。
Because of the defect of long running time and big complexity in the classical job - shop scheduling algorithm , the paper brought forward an intelligent optimization algorithm based on rule ; scheduling process is divided to primary process and optimization process . through the method of ahp ( analytical hierarchy process ) , the effect is researched between several rules and estimate . moreover , the results of ahp are used as a measurable standard to scheduling results 本文针对传统车间作业调度算法运行时间长,复杂度大的缺点,提出了基于规则的智能优化调度算法,将排序的过程分为初始排序与优化排序;基于多目标决策的层次分析方法,得出了各种规则与系统评价指标之间的影响度,其结论为生产计划方案的选择提供了定量的参考依据。
Then in the 3rd chapter , the thesis presents a new awareness model am - neven , and defines the key components , such as awareness objects , awareness levels , interactive tasks , and area of interest . in the following chapter , an adaptive awareness scheduling framework based on the global resources is presented , which schedules the awareness based on network and host resources , supports interaction with users , and coordinates the scheduling process according to the media types and characteristics of the awareness objects 第四章提出了一个以上述模型驱动的基于整体资源的自适应感知调度框架,从网络和系统资源等的多个层次上进行感知调度,支持和用户的动态交互,并考虑多种媒体类型的感知对象特点及其综合协调,然后对其重要组成部分的关键技术进行了分析。
In the body of the dissertation , existent real time problem and research status quo are indicated , and the real time problem of fieldbus and industrial ethernet are researched . the major contributions of this dissertation are as follows : 1 . in the communication of fieldbus , real time schedule process and real time schedule table of filedbus are kernel and key problems during fielbus protocol research and fieldbus device development 本论文首先简要介绍了工业控制网络的发展历程,指出了存在的实时性问题和国内外的研究现状,然后从现场总线到工业以太网对实时性问题进行了深入研究,研究结果和内容可以概括为以下几个主要方面: ( 1 )在现场总线的通信活动中,实时调度过程和实时调度表是其中的核心,同时也是总线协议及其设备的研究开发过程中需要解决的关键问题。