数控车间中央刀具库的资源调度与配置研究

如何从构成刀具的模块级来调度与配置刀具资源,以减少刀具的库存成本是数控车间中迫切要解决的问题．本文以刀具购买资金为约束，研究了如何为一个任务配置加工所需的各种刀具模块数量，使任务具有最小的在制时间．通过滚动计算来求解在制时间，通过比较“最小在制时间可能的提前数量∕应该增加的刀具模块成本”来选择瓶颈资源，指导贪婪式算法以决定要增加哪些刀具实例和模块,以及增加的数量．计算结果表明模块级刀具配置优于刀具级刀具配置．     

智能型医用制氧设备中远程监控系统的设计

本文介绍了在智能型医用制氧设备研制中应用世界星组态软件设计的远程监控系统。该监失系统能够在远离制氧现场的上位机通过可编程控制器PLC，对制氧机组中各个设备的运转状况进行不间断的监测，同时能够发出控制命令对异常状况及时做出处理。     

开关磁阻电机的计算机智能化测试系统

开关磁阻电动机是从20世纪70年代开始迅猛发展的一种较为新型的电机。介绍了电机智能化测试系统在微机、数据采集卡、组态软件构成的平台上，实现对开关磁阻电机的性能测试，中给出了系统的硬件设计方案和软件模块构成。硬件主要涉及采集卡、传感器模块、信号调理单元等，而软件是以Synall2000组态软件为软件开发平台，具有良好的人机界面。系统的人机交互与数据处理由工控PC机来完成。该测试系统为开关磁阻电机的后续研究打下了测量基础。     

降液管优化设计及操作性能研究进展

综述了进行降液管结构优化的几个方面：改变降液管裙体形状以改善流型；合理选择降液管底隙，改造进口堰，强化入口面积．论述了结构优化后几种降液管的形式及具有特殊降液管的几种塔板：倾斜降液管、月牙形降液管、FRI塔板、MD塔板等．同时详细论述了降液管操作性能的研究进展．     

基于GBOM和CBR的产品配置方法研究

在分析传统物料清单结构的基础上，提出了基于GBOM和CBR的产品配置模型，着重讨论基于模糊综合评判的相似实例提取方法，该方法通过对定性属性、定量属性指标以及模糊数量型属性指标的评价，从众多相似方案中提取出与客户需求最相近的方案，最后以电池自动检测分选机为例，阐述了该方法的实际应用。     

压杆与结构的稳定分析

结构的承载能力包括强度、刚度、稳定性,本文对含有压杆的结构(含静不定结构)进行了稳定性的分析,对结构的临界载荷与结构失稳的最小载荷进行了研究,对压杆的临界载荷公式进行了分析.     

Renaming Detection

Finding changed identifiers is important for understanding the difference between two versions of a program and for detecting and resolving conflicts while merging variants of a program together. Standard practice for differencing and merging relies on line based techniques that do not recognize renamed identifiers. The design and implementation of a tool to automatically detect renamed identifiers between two versions of a program is presented. The system uses an abstract representation of language constructs to enable language awareness without introducing language dependence. Modules for Java and Scheme have been written. The detector works with multiple file pairs, taking into account renamings that span several files. A case study is presented that demonstrates proof of concept. The detector is part of a suite of intelligent differencing and merging programs that exploit the static semantics of programming languages.     

Coordinated dispatching of proximity sensors for the surveillance of manoeuvring targets

The surveillance of a manoeuvring target with multiple sensors in a coordinated manner requires a method for selecting and positioning groups of sensors in real time. Herein, the principles of dispatching, as used for the effective operation of service vehicles, are considered. The object trajectory is first discretized into a number of demand instants (data acquisition times), to which groups of sensors are assigned, respectively. Heuristic rules are used to determine the composition of each sensor group by evaluating the potential contribution of each sensor. In the case of dynamic sensors, the position of each sensor with respect to the target is also specified. Our proposed approach aims to improve the quality of the surveillance data in three ways: (1) The assigned sensors are manoeuvred into “optimal” sensing positions, (2) the uncertainty of the measured data is mitigated through sensor fusion, and (3) the poses of the unassigned sensors are adjusted to ensure that the surveillance system can react to future object manoeuvres. If a priori target trajectory information is available, the system performance may be further improved by optimizing the initial pose of each sensor off-line. The advantages of dispatching dynamic sensors over similar static-sensor systems are demonstrated through comprehensive simulations.     

FIX工控软件开放性报表模块的研制

针对用户不能直接检索FIX工控组态软件私有数据库的限制，基于对其数据存储结构的分析，和国内外报表格式的比较，运用动态数据交换DDE（Dynamic Data Exchange)通信，WinSock网络通信技术，给出一种开发开放性服务器／客户模型报表模块的方法，该方法打破了客户不能直接检索组态软件数据库文件的约束，可开发符合现场要求的报表；并将组态软件数据文件转换成通用数据库格式文件，提高了工控软件的开放性，易于数据的交流和共享；此报表模块占用系统资源少，提高了工业监控系统的实时性。     

基于组态方式的电站性能分析系统

电站性能分析系统对于电厂机组的安全、可靠运行，提高系统的热经济性具有十分重要的意义。介绍了一种组态方式的电站性能分析系统，该系统依托于电站分布式控制系统DCS（Distributed Control System)，采用热平衡法，等效热降法，能损耗分析法等多种方法可在线计算出各种工况下的机组热经济性指标，进而进行热经济性分析，及时指导运行人员进行热力参数的调整，从而有效地提高电厂的运行效率。