model network meaning in English
模拟网络
Examples
- Design of the tree - model network of the embedded system
树型嵌入式系统网络 - The computer rooms are equipped with personal computers of the latest model networked together
电脑室设有最新型号的连网个人电脑。 - Firstly , this paper makes a detailed study on the field control bus system ( pcs ) , including the characters of pcs by comparing fcs and dcs , model networking of pcs and several popular field bus , then put forward a question for discussion combining embeded internet technology and field bus and measure and control networking model based embeded internet technology is constructed . secondly , it studies embeded system including the core of hardware ? mbeded microprocessor and real time operation system . thirdly , the method of realizing embeded internet is discussed for emphasis , and difficulty of ehernet application in industry measure & control system is analysed . an instance of measure & control networking system based embedded ip is given . finally , the author designed a networked remote video surveillance system based embedded web server , c / os - ii is sacled and ported into the embedded microprocessor at89c51 . based on the c / os - ii rtos , tcp / ip protocol suite and application program is designed in detail . the system w orks well that improves that the embedded internet technology will be widely used in modern measure & control networking system and has extend values
本文首先分析了现场总线系统( fcs )与传统集散控制系统( dcs )相比具有的特点、 fcs的网络体系结构，介绍了几种流行的现场总线，提出了将嵌入式internet技术结合现场总线构建现代测控网络的课题；在此基础上，构建了基于嵌入式internet技术的测控网络结构模型；深入研究了嵌入式系统的核心硬件?嵌入式微处理器，通过对比普通操作系统，描述了嵌入式实时操作系统的特点；重点研究了实现嵌入式internet的四种实现方法，并分析了以太网在工业测控系统中应用的难点，给出了一个基于嵌入式ip的网络测控系统实例；最后，研究与设计了一个基于嵌入式web服务器的远程网络视频监控系统，该嵌入式web服务器利用目前成熟的嵌入式实时操作系统c / os - ，通过对c / os -进行适当的裁剪、修改与移植，在at89c51嵌入式微处理器上实现了tcp / ip协议栈及应用程序，系统的成功运行证明了本文研究成果的有效性，也表明嵌入式internet技术在现代测控网络系统中具有广阔的应用前景和推广价值。 - It solves payment issue through sharing pos and brush card . it solves info sharing and exchanging problem by enterprise application integration it adopts research method of software engineering and uses touch - screen , network , database technology and so on to carry through total design of the system and build the software : it uses user status identify and responsibility control to ensure database and application program ' s security ; it strengthen the code by coding optimize ; it captures and discards application runtime error to enhance the system ' s stability ; it uses multimedia voice and moving picture to show help information , thus makes the system easy to use ; it greatly reduces the maintenance work of the system by self - updating function ; it is an opening system by using star - model network top structure , supporting standard network communication protocol ? tcp / ip and offering standard software interfaced criterion
论文采用软件工程的研究方法，使用触摸屏、网络、数据库等技术，进行了系统总体方案设计和软件开发：通过对数据库和应用程序的用户身份识别和权限控制，保证数据存取和应用程序的安全性；通过对代码进行优化提高了代码的健壮性；通过捕捉并抛出系统运行时的异常错误提高了系统的稳定性；通过多媒体语音、图形和动画提示帮助信息来增强系统的易用性；客户端程序自动升级功能提高了系统的可维护性，有效地减少了维护工作量；系统采用星型的网络拓扑结构，支持标准的tcp ip网络通讯协议和规范的软件接口标准，具有良好的开放性。 - It was first to derive the control equations of numerical models based on the past relevant achievements , and the common numerical - computation methods were introduced and compared after that 1 - d and 2 - d models were both applied according to the condition of the problems . the 1 - d model program was the floris that have been broadly used to model networks of river , and the 2 - d model used fasttabs , a good visualized program package suitable for modeling the shallow waters
在总结前人成果的基础上，论文首先推导了水流数学模型的基本方程，然后介绍和比较了常用的几种数值计算方法，根据所研究问题的特点，决定采用一维水流数学模型和二维浅水模型联合计算模式，其中一维模型采用的是已被广泛运用于河网计算的数学模型程序floris ，而二维模型采用的是可视化的程序包fasttabs 。