过程控制

A lot of new typed process systems can hardly be analysed by control theory but they are easily explained by anthropomorphic behavior .

过程控制的动向是巧妙地应用专家系统与智能控制于系统设计，其理论基础不是经典的控制和现代控制理论，而是拟人化行为。

But,the drawbacks of Shewhart's control chart is that when the control chart shows abnormal,it cannot tell us what and where is the assignable cause,i.e.it cannot diagnose the abnormalityof the process.In 1982,Prof.Gongxu Zhang proposed the diagnosis theory with two kinds ofquality,solved the diagnosis problem of assignable cause,thus opened a new direction ofstatistical diagnosis theory and developed the theory of SPC into a new stage ofSPCD(Statistical Process Control and Diagnosis).The multi-operation and multi-index system exists everywhere,in general,nearly all theproduction lines of factories belong to this system.

但休哈特控制图的缺点是，当控制图显示异常时，它不能告知是何原因、何处发生了异常，即不能诊断。1982年，我国著名质量管理专家张公绪教授提出两种质量诊断理论，解决了对异常因素的诊断问题，开辟了统计诊断理论的新方向，将质量控制推向了一个新的发展阶段——统计过程控制与诊断阶段。

Simulation studies of the dissolved oxygen control in wastewater treatment and pH control in a reactor show that the algorithms given in the thesis have good performance, and the algorithms are simple and easy to use and need fewer measured parameters in comparison with Goodwin's method of bilinear system adaptive control.

将本文的双线性系统自适应控制方法，用于废水处理中的溶氧过程控制和pH值控制的实例仿真研究表明，本文算法具有良好的动态性能，和Goodwin所采用的双线性自适应控制方案相比，具有所需的测量参数少、简单、易于实现等优点。

The designs CENTUM CS1000 Distributed Control System, DCS is with the modernization of large industrial production of the constantly rising automation and process control requirements of the ever increasing Canada and the integrated control system.

本设计采用CENTUM CS1000集散控制系统，集散控制系统DCS是随着现代化大型工业生产自动化的不断兴起和过程控制要求的不断增加而产生的综合控制系统。

In this paper, the application of neural networks for industrial contrail control systems is introduced and the problem of building neural network model of the nonlinear control objects is described.

介绍了神经网络在工业控制系统中的应用；论述了建立非线性被控对象的神经网络模型问题；介绍了神经网络控制的主要方案，这些方案可用于过程控制和电气传动控制系统。

The PID control with variable integration has greatly improved control performance and realized dynamic process control and management of the BST attitude control system. Thus it has greatly enhanced flexibility and reliability of the BST attitude control system.

变积分的 PID控制大大提升了CMG控制特性和系统的控制品质，使BST姿控系统实现了动态过程控制，增加了BST姿控的精度和灵活可靠性。

The theoretical and testing research results show that inhomogenous microzone of construction ,conce-tration and energy in austenite ,which is in demand for unusual decomposition of undercooling austenite ,can be obtainedby controlling heating or plastic deformation or controlling cooling.

通过理论和试验研究表明，过冷奥氏体异常分解所需要的奥氏体内在结构上、浓度上和能量上的不均匀微区，可以借助于加热过程控制或塑性变形、或冷却过程控制来获得。

The application of MSPC in continuous process and batch process is introduced, basing on the processes of synthesizing of Phosphonic Acid Dimethyl and batch cooling crystallizer.

分别以农药原料亚磷酸二甲酯生产过程和间歇冷凝结晶生产过程为应用背景，介绍了多变量统计过程控制在连续过程和间歇过程中的应用。

Since the electrodeposited copper foil is a kind of processed products, the key of controlling its quality lies in the process control, that is ,only the stable process performance can ensure the stable quality.

电解铜箔作为一种流程性的产品，品质控制的关键在于过程控制，只有稳定的过程能力，才能保证品质的稳定。

The Process Control Section The production line process control system design good or bad decision can be largely controlled and safety.

各工段过程控制生产线的过程控制设计好坏很大程度上决定系统的可操控性和安全性。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。