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软件简介双狐地质成图系统（DF-GVision）采用中文和英文两套界面设计，界面友好，操作简单。
DFDraw为强大的图形编辑修饰工具，与变速构造成图及数据库系统相结合，能一次编辑完成T0图、构造图、井位部署图、勘探部署图、地质剖面图、单井柱状图、油藏剖面图、地层对比图、小层连通图、栅状图、各类等值图、沉积相带图、综合评价图等各种图件，且所成图件可再次提出数据进行其它数学运算，具有一次成图多次利用的特点。
保障了数据的一致性、循环性，很大程度上满足了与其它软件系统的兼容问题。
双狐地质成图软件可直接读写CGM图件；直接浏览SegY剖面；嵌入Excel表格文件；导出DXF文件；可方便的进行大图剪裁小图；整合了符号库与修饰库的管理功能；完善了半自动与全自动图像矢量化功能；并提供了配套的井资料数据库成图、带断层（包括逆断层）等值线勾绘等23个常用工具模块，使您的工作会变得更加轻松高效。
双狐数据格式为开放的文本数据格式，简单易读，为软件的二次开发提供方便的环境。
只要写成双狐数据格式，图形就自然形成。
国际化的图形操作风格●编辑、复制、粘贴、拷贝等操作均采用标准的国际惯例，简单易学；●新增元素属性卡，吸收国内外大型软件的编辑操作功能，使得数据管理更加方便快捷，用户使用方式触类旁通；●加强了用户操作步骤的记忆功能，多步骤的撤销、重做，方便用户对图件的反复操控，加强对用户操作的保护，使得软件更健壮、更稳定；●增加了大量的键盘快捷键，键盘和鼠标配合操作，大幅提高图件编绘效率；●坐标表达式运算功能；●用户工具自定义功能，方便用户自定义一些功能模块加载到菜单中；●井位名称、等值线名称可以用鼠标直接拖拽移动位置，曲线形态也可由鼠标拖动、旋转、错切；●曲线编辑方式多样化，不仅保留原有的单节点编辑、线性节点编辑、余弦节点编辑三种方式，还增加了三次样条控制点编辑模式，等值线编辑更快更符合地质人员的需求。
等值线名称沿线随意拖拽专业的等值线编辑功能移动、放缩、旋转、错切元素属性卡显示元素参数快捷的成图方式双狐图形的组成很简单，基本上由点和线完成整个图件的描述，用户只需提供基本坐标数据，利用双狐的图层管理及修饰，很快就形成美观的工业图件。
#1 HyperConverged Appliance for SMB and ROBOStarWind Virtual SAN®Free Getting StartedJUNE 2015TECHNICAL PAPERTrademarks“StarWind”, “StarWind Software” and the StarWind and the StarWind Software logos are registered trademarks of StarWind Software. “StarWind LSFS” is a trademark of StarWind Software which may be registered in some jurisdictions. All other trademarks are owned by their respective owners. ChangesThe material in this document is for information only and is subject to change without notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, StarWind Software assumes no liability resulting from errors or omissions in this document, or from the use of the information contained herein. StarWind Software reserves the right to make changes in the product design without reservation and without notification to its users.Technical Support and ServicesIf you have questions about installing or using this software, check this and other documents first - you will find answers to most of your questions on the Technical Papers webpage or in StarWind Forum. If you need further assistance, please contact us.Copyright ©2009-2015 StarWind Software Inc.No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written consent of StarWind Software.In 2016, Gartner named StarWind “Cool Vendor for Compute Platforms”.Gartner does not endorse any vendor, product or service depicted in its research publications, and does not advise technology users to select only those vendors with the highest ratings or other designation. Gartner research publications consist of the opinions of Gartner's research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.About StarWindStarWind is a pioneer in virtualization and a company that participated in the development of this technology from its earliest days. Now the company is among the leading vendors of software and hardware hyper-converged solutions. The company’s core product is the years-proven StarWind Virtual SAN, which allows SMB and ROBO to benefit from cost-efficient hyperconverged IT infrastructure. Having earned a reputation of reliability, StarWind created a hardware product line and is actively tapping into hyperconverged and storage appliances market. In 2016, Gartner named StarWind “Cool Vendor for Compute Platforms” following the success and popularity of StarWind HyperConverged Appliance. StarWind partners with world-known companies: Microsoft, VMware, Veeam, Intel, Dell, Mellanox, Citrix, Western Digital, etc.ContentsIntroduction (4)Implementation (5)Contacts (7)IntroductionStarWind Virtual SAN® is entirely software-based, hypervisor-centric virtual machine storage. It creates a fully fault-tolerant and high-performing storage pool that is built for the virtualization workload “from scratch”. StarWind Virtual SAN basically “mirrors” inexpensive i nternal storage between hosts. Virtual SAN completely eliminates any need for an expensive SAN or NAS or other physical shared storage. It seamlessly integrates into the hypervisor for unbeatable performance and exceptional simplicity of useStarWind comes with the different set of options and deployment scenarios. It allows implementation of:•Hyper-Converged architecture, which assumes running StarWind on the same physical host where the client is running•Compute and Storage Separated architecture, where StarWind is running on the dedicated physical box.Free version comes with basic set of features (and is targeting just one deployment scenario which is Compute and Storage Separated, while paid version can also do Hyper-Converged and various combined ones. StarWind Virtual SAN Free takes two servers with some internal storage, brand new or decommissioned from other project and turns them into a “shared nothing” fault-tolerant SAN and NAS. HA iSCSI SAN protocol is kept for “internal housekeeping” and no t available to external initiator servers. Highly available shared storage is available to the client servers through Continuously Available SMB 3.02 and Failover NFSv4.1. This dramatically simplifies the installation, support, and management of the storage solution. Performance is not throttled and still stands in line with Enterprise-grade storage arrays.This guide is intended to highlight the specific implementation that StarWind Virtual SAN Free allows, its pros and cons.A full set of up-to-date technical documentation can always be found here, or by pressing the Help button in the StarWind Management Console.For any technical inquiries, please visit our online community, Frequently Asked Questions page, or use the support form to contact our technical support department.ImplementationStarWind Virtual SAN Free takes a pair of new or decommissioned commodity servers and turns them into a DIY dual-controller “shared nothing” fault-tolerant SAN and NAS by “mirroring” their internal storage between them. Resulting solution exposes continuously available SMB 3.02 shares and failover NFS v4.1 mount points and targets such a use cases:•Shared storage for Microsoft Hyper-V VMs and SQL Server DBs (CA SMB3)•Shared storage for VMware vSphere & ESXi, Citrix XenServer and various Xen VMs (NFS) •Failover file server (common data, VDI profiles, backups and so on) (SMB3 & NFS)Though a hyper-converged scenario is an industry trend now, the differentiation of compute and storage layers makes sense if there’s need to grow by capacity or compute separately from each other. Typical use cases are shared storage for huge clustered SQL Server and Oracle deployments and an inexpensive block back-end for Scale-Out File Servers, NFS shared file servers, etc.This option assumes manual installation and configuration of the StarWind Virtual SAN on the Windows Server that is running on the separate physical box. As mentioned previously it really sensitive hardware utilization control leverages, such deployment usually considered for the bigdeployments, where underprovisioning may result in significant waste of budget on the hardware that wouldn`t be actually used, as in some case of hyper-converged architecture usage.While running StarWind in Compute and Storage architecture, it is possible to scale compute and storage resources independently, with different leverages regardless from each other. As a result, the system better fits the task while CapEx and OpEx go through the floor,since there is no need to purchase hardware that will be essentially wasted. Thus, the system can be created specifically for a particular task.In order to configure the configurations that StarWind Virtual SAN Free allows please refer to the one of the step-by-step manuals that you can find by using the links below:•/configuring-ha-file-server-for-smb-nas•/configuring-ha-file-server-for-nfs-nas•/sw-providing-ha-shared-storage-for-scale-out-file-serversContacts1-617-449-77171-617-507-5845 +44 20 3769 1857 (UK) +49 302 1788 849 (Germany)+33 097 7197 857 (France)+7 495 975 94 39(Russian Federation and CIS)1-866-790-2646Customer Support Portal:Support Forum:Sales:General Information:https:///support https:///forums ***********************************StarWind Software, Inc. 35 Village Rd., Suite 100, Middleton, MA 01949 USA ©2015, StarWind Software Inc. All rights reserved.。
MES对过程控制系统（PCS）的数据采集1 引言随着计算机信息技术的高速发展、软件应用技术的不断普及、企业信息化建设经验的不断积累和计算机信息管理系统应用水平的提高，使企业深刻地认识到走信息集成化道路的重要性。
实施信息集成化技术，已成为企业信息化建设发展的一种必然选择。
在流程制造行业的企业信息化建设中，位于底层车间进行生产控制的是以先进控制、操作优化为代表的过程控制系统（PCS），PCS强调的是通过控制优化，减少人为因素的影响，提高产品的质量与系统的运行效率；而位于上层的企业计划系统（ERP），强调的是企业的计划性。
尽管这两类系统的推广取得了一定效果，但却忽略了两者之间的有效配合，导致企业上层经营管理缺乏有效的实时信息支持、下层控制环节缺乏优化的调度与协调。
为此，将经营计划与生产过程统一起来的生产执行系统（MES）应运而生。
2 MES系统功能及构成MES（Manufacturing Execution System）即制造执行系统，俗称生产执行系统。
MES位于企业信息计划系统（ERP／SCM）和过程控制系统（PCS）的中间位置，过程控制系统包括分散控制系统（DCS）和安全仪表系统（SIS）等。
ERP作为业务管理系统，DCS／SIS属于控制系统，而MES则是生产执行系统。
MES与上层ERP等业务系统和底层DCS等生产设备控制系统一起构成企业的神经系统，一是把业务计划指令传达到生产现场，二是将生产现场的信息及时收集、上传和处理。
MES不单是面向生产现场的系统，而是作为上、下两个层次之间双方信息的传递系统，连结现场层和经营层，通过实时数据库传输基本信息系统的理论数据和工厂的实际数据，并提供企业计划系统与过程控制系统之间的通信功能，是应用于企业的重要信息系统。
其具体功能如下：2.1 资源分配、状态及人力资源管理管理设备、工具、人员物料、以及其他生产实体，满足生产计划的要求对其所作的预定和调度，用以保证生产的正常进行；提供资源使用情况的历史记录和实时状态信息，确保设备能够正确安装和运转。
仪表工考试：热工仪表检修工必看题库知识点1、填空题测量误差按其性质不同可分为（），随机误差和疏忽误差。
正确答案：系统误差2、填空题从PLC应用系统的角度考虑，可以将系统分成（）和（）。
正确答案：硬件部分；软（江南博哥）件部分3、填空题在生产过程中，开环控制和闭环控制常常相互使用，组成（）控制系统。
正确答案：复合4、问答题计算机系统主要由哪两部分组成？硬件结构主要有哪几大部分？正确答案：计算机系统主要由硬件、软件两大部分组成，硬件结构从概念上来说主要由中央处理器（运算器、控制器）、存贮器、输入设备、输出设备等几大部分组成。
5、填空题调节器引入微分作用是克服被调节对象的（）影响。
正确答案：滞后6、单选伴热蒸汽压一般不超过（）MPa。
A．O．5MPaB．1.0MPaC．1．5MPaD．2．0MPa正确答案：B7、单选氧化锆传感器中的感受元件的材料利用它能传递（）的性质。
A.锆离子B.氧离子C.氧化锆分子D.氧离子空穴正确答案：B8、填空题零漂是指仪表在参比条件下输入一个恒定的值（）的（）。
正确答案：零或测量范围的下限值；输出变化9、单选火焰监测器探头电路中的（）放大器将光电元件输出信号进行放大。
A、线性；B、传输；C、对数；D、直流。
正确答案：C10、填空题A/D转换器位数有（）、（）、（）、（）位数越高，其分辨度和精度越高。
正确答案：8位；10位；12位；16位11、填空题华氏98.6°F，相当于（）℃。
正确答案：3712、多选下列调节对象中哪些对象滞后较大。
（）A、截面积大的贮槽液位B、截面积小的贮槽液位C、蒸汽夹套加热器温度D、蒸汽直接加热器温度E、管道流量正确答案：C, D13、问答题你所知道的PLC系统/DCS系统应用控制程序编程工具软件有哪些？正确答案：不同的PLC系统、DCS系统有其专用的应用控制程序编程工具软件，如SIEMENSS7－300/400系列PLC编程软件包是STEP7，日本山武HarmonaspR100系列DCS编程软件包是RTC，等等。
