计算机系统

This paper introduces the principle, the function, the constitutes and the classification of computer safety surveillance and controlling system based on field bus, and the working mode of field bus system has been explained, which are roll-call polling, roll-call passing, ALOHA, CSMA and CSMA/CS.

本论文简要介绍了计算机监控系统的原理、功能、组成及分类，阐述了基于现场总线技术的计算机监控系统的原理和组成，并说明了现场总线系统的工作模式，即轮叫轮询、传递轮询、ALOHA、CSMA和CSMA/CD。

The research bases, which are different to those of traditional information system research, are the System Theory. Think about the factors of human, computers, technology and management compositely instead of the way focus on the factors of technology and computers in traditional information system research.

本研究的主要立足点是现代系统理论，综合考虑企业信息系统中的人和计算机的因素，技术和管理的因素；这一点与传统信息系统研究重视技术和计算机的立足点不同。

Pass to computer control technology to the application and the research in the shaft hoist, we introduce that the new breeze well hoist computer control system to adopt the most advanced technique of PLC nowadays, by full-digital thyristor DC speed regulated system to constitute of parallel 12 pulse technology and magnetic fields to change toward technology, reform the traditional generator- electric motor machine set and relay control of hoist, by F- D machine set the unadvanced drive of wind reformation to become having the international advanced the horizontal full digital DC to drive the system.

通过对计算机控制技术在矿井提升机中的应用和研究，阐述了新风井提升机计算机控制系统采用了当今最先进的PLC技术、由全数字晶闸管直流驱动系统组成的并联十二脉动整流技术和磁场换向技术，来改造传统的发电机—电动机机组+继电器控制的提升机，从而使落后的F—D机组驱动的提升机改造成为具有国际先进水平的全数字直流驱动系统。

This paper presents the computer auxiliary marshalling system for cranes, hot metal and steel liquid ladles in the steelmaking Shop of Shanghai No.

介绍了宝钢集团一钢公司不锈钢项目炼钢工程计算机辅助调度管理系统的概况、控制对象、作业流程和设备配置；并重点交流了系统的工艺要求和功能，对今后开发同类型钢厂的计算机管理系统有借鉴作用。

By taking advantage of the new technology and software of computer development,it can ac complish the list statistic of various drawings and materials needed in the who le comprehensive wiring system.

通过分析综合布线系统传统设计方法的缺陷，提出一种崭新的综合布线系统计算机辅助设计的新思路，并充分利用计算机发展的新技术、软件，完成整个综合布线系统所需的各种图纸和施工材料清单统计

At the present time, the level of Computer- aided design system is low .And the system is appropriate for single type of machine. This paper develops a Computer Aided Design system for warp-knitted fabric which can design warp-knitted fabric exactly and efficiently.

目前国内经编CAD系统水平较低，只适用于单一机型，本课题着眼于此研发的经编计算机辅助设计系统可以使用计算机较准确地对普通经编针织物进行全面、系统地设计。

The 709th institute has applied the high-tech in the national economic constructions in time, making the development for civil products in full vitality. The body of the civil product industry supported by these pillars, i.e. the computer, the automatic control, the electromechanics, the network and software, the PCB manufacture, has been initially formed. The products developed by us, such as the electronic control system for the high-speed tobacco rolling machine, the computer supervision control system for the shiplift, the power electronic products, the PCBs and so on, have contributed greatly to the national economic developments.

七○九所及时将高新技术应用于国民经济建设中，使民品开发呈现出勃勃生机，已形成了以计算机、自动控制、机电一体化、网络与软件、电路板制造等为主体的民品产业，研制的高速卷烟机电子控制系统、升船机计算机监控系统、功率电子产品、印制电路板等产品以及承接完成的众多现场工程管理信息系统和Internet/Intranet网络工程，为国民经济的发展作出了积极贡献。

T he 709th institute has applied the high-tech in the national economic constructions in time, making the development for civil products in full vitality. The body of the civil product industry supported by these pillars, i.e. the computer, the automatic control, the electromechanics, the network and software, the PCB manufacture, has been initially formed. The products developed by us, such as the electronic control system for the high-speed tobacco rolling machine, the computer supervision control system for the shiplift, the power electronic products, the PCBs and so on, have contributed greatly to the national economic developments.

七○九所及时将高新技术应用于国民经济建设中，使民品开发呈现出勃勃生机，已形成了以计算机、自动控制、机电一体化、网络与软件、电路板制造等为主体的民品产业，研制的高速卷烟机电子控制系统、升船机计算机监控系统、功率电子产品、印制电路板等产品以及承接完成的众多现场工程管理信息系统和 Internet/Intranet 网络工程，为国民经济的发展作出了积极贡献。

Works - mainly undertake the following business: intelligent building, smart systems integration weak plot lump-sum engineering, integrated wiring systems engineering, computer network systems integration engineering, computer room engineering, earthing, lightning protection engineering, anti-theft alarm, closed circuit monitoring system , public radio, background music systems engineering,(offices, schools, factories and karaoke OK) multi-function room audio-visual, frequency, and conferencing systems, lighting, sound systems engineering, IC card access control, electric door, video intercom doorbell system engineering , parking autotoll systems engineering, remote telephone, video conferencing systems engineering company based in Guangdong, for the country, major customers, including banks, tax, post and telecommunications, railway, companies, state organs, the property companies.

工程方面-主要承接以下业务：智能大厦、智能小区弱电系统集成总包工程、综合布线系统工程、计算机网络系统集成工程、计算机机房工程、接地、防雷工程、防盗报警、闭路监控系统工程、公共广播、背景音乐系统工程、（机关、学校、工厂及卡拉OK）多功能厅音视、频及会议系统、灯光音响系统工程、门禁IC卡、电动门、可视对讲门铃系统工程、停车场自动收费系统工程、远程电话、电视会议系统工程、公司立足于广东、面向全国，主要客户包括银行、税务、邮电、铁路、公司、国家机关、物业公司等。

Based on the analysis of the present condition of manufacture Process Planning of various industries, This paper draws up a ploy to develop CAPPof rectangle spline broach which bases on Solidworks 2006 and Visual Basic6.0, and the function and the total structure and the mode of CAPP of rectangle spline broach.

在分析了目前多数企业工艺设计技术现状的基础上，制定了在Solidworks 2006和Visual Basic6.0环境下，开发矩形花键拉刀计算机辅助工艺系统的策略，拟定了矩形花键拉刀计算机辅助工艺系统的系统功能、总体结构及运行模式。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。