基于C++ Builder的串口通信程序实现方法

在工业控制领域,计算机经常通过串口实现与单片机、DSP、PLC等的通信,并被广泛应用。文章叙述了在C++ Builder 6环境下串口通信的3种实现方法,并着重介绍了Windows的API通信函数。     

煤层地质条件的开采工艺性评价软件研制及其应用

在煤层地质条件的开采工艺性评价的基础上，分析了评价结构和指标量化方法，建立了煤层开采工艺性评价的模糊数学模型重点介绍了软件研制的基本思想和技术途径通过调查获取了大量矿井地质、开采资料，并采用该软件进行评价，初步获得了现阶段我国缓倾斜、倾斜煤层开采工艺选择的客观判据，提出了矿井地质条件开采工艺性分类方案为进一步建立全国煤炭开采评价体系提供了先进的技术手段     

基于EVT的GPS RTK接收机研制

本文介绍了GPSRTK接收机的主要结构及其通讯功能 ,重点阐述WindowsCE编程的主要特点和编制接收机程序的关键技术。论证了运行WindowsCE的PDA结合GPSOEM板可以开发性能优越的GPSRTK接收机的可行性     

基于Lab Windows/CVI的GPIB虚拟仪器的设计

利用Lab windows/CVI的GPIB虚拟仪器远程控制系统,由FSP频谱分析仪、信号发生器、功率放大器等仪器组成,并通过GPIB总线与主控计算机相连.主控计算机内安装IEEE488标准接口卡,通过软件可对各测控设备实现远控和自动或半自动操作,同时对重要数据进行分析和储存.     

Software measure in cyber-attacks on production control system

The likelihood of cyber-attacks against information systems and related production control systems has increased. In order to lower the risk of cyber-attacks, OS makers release timely security updates. However, the amount of time that is available for applying patches is limited on production control systems and the possibility of side effects is a concern. Therefore, we focused on the patch application cycle and the period of pretest, and proposed optimal OS measures for production control systems. We presented the method for quantifying the risk of cyber-attacks on production control systems due to security patches not being applied and for expressing the risk as a monetary amount. This method was also proposed for deriving the patch application cycle, the number of applications, and the optimum test duration. We concluded that this method help to understand the patch management and related security measure and to protect production control systems from cyber-attacks.     

基于Windows7平台的高校计算机机房改造与实施

以郧阳师范高等专科学校计算机中心机房为例,介绍了基于Windows 7平台下机房建设改造过程中的硬件、软件及网络设备的方案选用,及工程实施过程中需要注意的问题和实践经验。     

国产聚苯乙烯在窗口膜生产中的应用与实施

简要介绍BOPS国产化原料在环保绿色窗口膜生产中的应用与实施，阐述聚苯乙烯（BOPS）料粒在薄膜生产中使用的特点，以及其良好的发展前景，重点论述该产品生产过程中的关键技术。     

A bi-objective approach for scheduling ground-handling vehicles in airports

In the present paper, we propose a new approach for scheduling ground-handling vehicles, tackling the problem with a global perspective. Preparing an aircraft for its next flight requires a set of interrelated services involving different types of vehicles. Planning decisions concerning each resource affect the scheduling of the other activities and the performance of the other resources. Considering the different operations and vehicles instead of scheduling each resource in isolation allows integrating decisions and contributing to the optimization of the overall ground-handling process. This goal is defined through two objectives: (i) minimizing the waiting time before an operation starts and the total reduction of corresponding time windows and (ii) minimizing the total completion time of the turnarounds. We combine different technologies and techniques to solve the problem efficiently. A new method to address this bi-objective optimization problem is also proposed. The approach has been tested using real data from two Spanish airports, thereby obtaining different solutions that represent a trade-off between both objectives. Experimental results permit inferring interesting criteria on how to optimize each resource, considering the effect on other operations. This outcome leads to more robust global solutions and to savings in resources utilization.     

基于Windows的华中世纪星数控系统PLC编程系统设计

华中世纪星数控系统采用“内装型”PLC,在DOS环境下使用C语言对其进行编程,这种编程方法没有采用Windows操作系统的方便和快捷,而且使用C语言编程同使用传统的梯形图编程相比,对编程人员的技术水平要求高,不便推广使用.针对该问题,开发基于Windows操作环境的数控系统PLC编程系统,主要介绍该编程系统的整体设计及梯形图元件基类的设计.     

基于Windows 2000的PCI驱动程序设计与实例

分析了Windows 2000驱动程序的种类,结合WDM框架与PCI驱动程序编程基本结构特点,研究了应用程序与PCI设备的通信方式。根据驱动程序设计实例,给出利用DriverWorks设计PCI硬件访问、中断处理例程接口函数的C＋＋编程方法,并利用本设计实例与多媒体定时器将采集数据结果进行了分析与比较。