基于最小二乘的转炉控制模型(论文范文,ASP.NET毕业设计)

1、基于最小二乘的转炉控制模型(论文范文,ASP.NET毕业设计)摘 要在炼钢实际生产过程中，氧耗量增量及废钢用量增量这两项数据尤其重要，不仅是确保炼钢命中率的基础,也是稳顺生产，控制节奏的关键；在数据收集整理，统计分析的基础上，建立一定冶炼模型，指导转炉生产（包括加料及氧气顶吹等），对钢铁生产具有重要的经济价值。经过科学的分析，本模型选取了废钢加入量和氧耗量作为因变量，再依据现场实际情况和收集数据的具体情况选取了22个自变量。按照多元线性回归,采用最小二乘法即可求得回归系数。而由回归系数构成的K阶线性方程组的系数,可用收集的现场数据求得,最后用高斯消元法对K阶线性方程组求解，从而得到氧耗量增量与

2、废钢用量增量的回归方程。本系统是基于B/S结构模型，使用A编程框架、C#程序设计语言、Visual Studio 2005等作为程序开发工具，Sql Server 2005作为后台数据库，在.net framework平台上实现了系统的基本功能。在具体设计中使用了会话状态管理，用户组别管理，运用了继承、重载和多态等方法，采用了ADO.NET技术、JavaScript等技术。由于系统需要存取和计算大量数据，所以在数据库设计中运用到了存储过程（Stored Procedure）提高系统运行效率。采用面向对象的程序设计方法把系统划分为六个功能模块：用户登录验证与管理模块，自定义数据模块，添加数据模块

3、，读取数据模块，分析计算数据模块，显示图表结果模块，每个功能模块既独立又有紧密的联系。通过整合这些功能模块基本实现了系统的业务功能。关键词：炼钢，最小二乘法，存储过程，AABSTRACTIn actual steelmaking production process, the oxygen consumption of incremental and the abolished steel consumption incremental both numbers are especially important and is not only ensure the shooting, is f

4、undamental to steelmaking instability of the production and control rhythm key. In data collection, statistical analysis is developed on the basis of certain smelting model converter, guidance production (including charging and oxygen top-blown of steel production, etc) has important economic value.

5、After scientific analysis control model selected the scrap addition amount and oxygen demand as the dependent variable, again according to the actual situation and collect data of the specific conditions of the independent variable selection 22. According to the multivariate linear regression, using

6、 least-square method regression coefficients can be obtained. By regression coefficient and composed of the coefficient of linear equations K, available for the field data collection, and finally by gaussian elimination method of linear equation of K, thereby get oxygen consumption of incremental va

7、lue increment and scrap steel dosage regression equations.This system is based on B/S structure model, using programming framework, c # programming language, and Visual Studio 2005 as program development tools, Sql Server 2005 as the backend database in framework platform, realized the basic functio

8、n of the system. In the specific design, use the public class session state management, using inheritance and heavy-load and polymorphism methods, the use of a technology, JavaScript techniques. Because the system need to access and calculation of large quantities of data in database design, so usin

9、g Stored procedures to improve the system efficiency. Using object-oriented program design method of the system ,and it is divided into six function module: user login verification and management module, custom data module, add data module, read data module, analysis and calculation results show chart data module, each function module are independent and have close ties. Through the integration of these function modules of the system to reali