查询词典 process control

This paper introduces the development process of wastewater disposal,it's auto control system,the level of nowadays and several new techniques of China and foreign countries. The immanent structure,control rules,main features and design methods of auto control systems in wastewater disposal process are studied in this paper. Aiming at four typical parameters,such as temperature,dissolved oxygen,PH and the planes of water,the Distributed Control System is designed,composed by PC called epigyny computer and SCM 8098 called hypogyny computer,and some sensors,shift deliver utensils and related meet orifices of parameters gathering and figures communication. The idea and work processes of some program modules are also introduced here. The programs in epigyny computer include the program of mutual interface between operator and computer,figure disposal program and chart output program,which are exploited with Visual Basic 6.0. And the programs in hypogyny computer are composed by figure gathering program,the progr am of supervision and control of system,communication program and meet orifice program between assemble language and VB,which are designed with assemble language.

本文介绍了国内外污水处理及其自动控制系统的发展过程、当今水平和提高自动化程度的若干新技术；研究了污水处理自动控制系统的内在结构、控制规律、主要特点和设计方法；选取污水处理中的典型参数温度、溶解氧、PH值和液位等为控制对象，设计了以个人计算机为上位机、以8098单片机为下位机，并辅之以传感器、变送器及相关接口单元所构成的二级集散控制系统；介绍了几个主要程序模块的设计思路、工作过程，这些程序模块是：用高级语言Visual Basic6.0开发的上位机人机交互界面程序、数据处理和图表输出程序，用执行效率高的汇编语言开发的下位机数据采集与系统监控程序、上位机与下位机之间的数据通信程序，汇编语言与VB之间的转接程序，等等。

This paper introduces the development process of wastewater disposal,its auto control system,the level of nowadays and several new techniques of China and foreign countries. The immanent structure,control rules,main features and design methods of auto control systems in wastewater disposal process are studied in this paper. Aiming at four typical parameters,such as temperature,dissolved oxygen,PH and the planes of water,the Distributed Control System is designed,composed by PC called epigyny computer and SCM 8098 called hypogyny computer,and some sensors,shift deliver utensils and related meet orifices of parameters gathering and figures communication. The idea and work processes of some program modules are also introduced here. The programs in epigyny computer include the program of mutual interface between operator and computer,figure disposal program and chart output program,which are exploited with Visual Basic 6.0. And the programs in hypogyny computer are composed by figure gathering program,the program of supervision and control of system,communication program and meet orifice program between assemble language and VB,which are designed with assemble language.

本文介绍了国内外污水处理及其自动控制系统的发展过程、当今水平和提高自动化程度的若干新技术；研究了污水处理自动控制系统的内在结构、控制规律、主要特点和设计方法；选取污水处理中的典型参数温度、溶解氧、PH值和液位等为控制对象，设计了以个人计算机为上位机、以8098单片机为下位机，并辅之以传感器、变送器及相关接口单元所构成的二级集散控制系统；介绍了几个主要程序模块的设计思路、工作过程，这些程序模块是：用高级语言Visual Basic6.0开发的上位机人机交互界面程序、数据处理和图表输出程序，用执行效率高的汇编语言开发的下位机数据采集与系统监控程序、上位机与下位机之间的数据通信程序，汇编语言与VB之间的转接程序，等等。

A new discrete reaching law is presented to improve the reaching process of discrete exponential reaching law.The discrete-time variable structure control system designed by this reaching law can not only weaken the chattering and control the system state approach to zero diminishingly,but also keep the basic property of quasi-sliding mode which can cross the switching surface step by step.This method improves the reaching process and enhances the control quality of the control system.

为了改善离散指数趋近律的趋近过程，提出了一种新的趋近律，利用该趋近律设计的变结构控制器，不仅能够大幅度削弱抖振，使系统运动最终趋于原点不存在稳态振荡，而且能使系统的准滑动模态保持步步穿越切换面的基本属性，有效地改善了趋近过程，提高了控制品质。

The device uses IPM which is development potential very much at present as switch component and microcomputer control device which takes hexadecimal chip 80C196 as core to design and equipped corresponding control software which is programmed by high-level language of PL/M. The software uses advanced digital PID control arithmetic and can adjust PID parameters for demand and thereby implement the intelligent control for equable charge process and floating charge process of storage battery.

本装置采用目前很有发展潜力的智能功率模块IPM为开关器件，采用以16位单片80C196为核心的微机控制装置进行设计，并配备了用PL/M高级语言编写的相应控制软件，该软件采用先进的数字PID控制算法，根据需要可对PID参数进行调整，从而实现对蓄电池的均充、浮充充电过程的智能化控制。

The experimental results show that the impeller with high ratio of circulation to shear is suit to be used in circulation control process, the impeller with low ratio of circulation to shear is suit to be used in shear control process, and the impeller with medium ratio of circulation and shear is suit to be used in circulation and shear co-control process.

实验结果表明，循环与剪切配比高的桨叶适用于循环控制的混合过程，循环与剪切配比低的桨叶适用于剪切控制的混合过程，而循环与剪切配比适中的桨叶适用于循环与剪切共同控制的混合过程。

Based on analysing the respective characteristics of regular PID controller in trational control theory and fuzzy logical controller in intelligent control theory, the idea and technique of expert system is introduced to develop a novel kind of hybrid intelligent controller. It can coordinate two kinds of control algorithms and tune the control parameters on-line for different working zones of the controlled process.(3) The hybrid knowledge expression model, which combines discrete state space model, fuzzy relational model and rule base model, is proposed based on analysing the characteristics of all kinds of knowledge expression models. The knowledge of the controlled process in different aspects can be expressed resonably by it. Based on the model mentioned above, the related optimization strategy for complex system is developed.

本文的主要贡献体现在：（1）以炼油厂的催化裂化装置和钢铁联合企业的大型焦炉装置两个典型的复杂工业过程为例，分析了工业大系统的许多不易控制的特性，并归纳了其中的几个典型特征；（2）针对经典控制理论中的常规PID调节器和智能控制技术中的模糊逻辑控制器各自的特点，通过引入专家系统的思想和方法，开发了一类混合式专家控制器，它同时具备在线协调两种不同控制规律和自动学习控制规则的能力；（3）通过分析各种知识表达模型的特点，提出了一类包括离散状态空间模型、模糊关系模型和规则基模型在内的混合知识表达模型，它能对过程知识在各个不同侧面给予合理的描述。

The classical cutting stock algorithm——column generation technology , and wrap up rectangle technology for abnormity are analyzed ; The development of AutoCAD with ObjectARX is studied and the generating method of cutting outline drawing and layout drawing were found out on the basis of analyses of the graph database structure of AutoCAD and the basic operation of it ; The process planning technology of plate material cutting orienting numerical control is studied a process planning method directly based on layout drawing is established ; The emulation technology in AutoCAD is studied and a kind of dynamic emulation method is put forward , which is realized by incrementally modifying graph entity ; The postposition of NC program of the integrated cutting system constructed on software plug-in is proposed , which can effectively solve the problem that it is difficult for a numerical control programming system to be common , which is caused by the difference of instruction format and control parameter between different type of numerical control machine .

分析了经典的矩形件优化排样算法——列生成法和针对异形件的矩形包络算法；研究了基于ObjectARX 的AutoCAD 开发技术，结合对AutoCAD 图形数据库结构及其基本操作的分析，给出了下料轮廓图和排样图的生成方法；研究了板材数控下料加工的工艺处理技术，建立了一种直接基于排样图进行的图形交互工艺规划方法；研究了在AutoCAD环境中的板材下料数控仿真技术，给出一种通过增量修改图形实体对象实现的动态仿真方法；提出以软插件技术构建集成下料系统的数控编程后置处理部分，能够有效解决因数控下料机床指令格式及控制参数不统一导致的自动编程软件系统不易实现通用性的问题。

Has many year sample sheet manufacture experience, many year freight bill managerial experience, can receive goods skilled using the AQL standard, outward with the customer communication, internal and various departments' coordinated and comes across the thunderbolt in the production process the stitch in time to have certain ability, from the quoted price, does manages, the production, produces goods has the rich operating practice ability, also has certain elementary knowledge, familiar knitting, the tatting production process and the production process to the washing water, in especially familiar production process (initial period, intermediate stage, final stage) quality control; Is familiar with the AQL sample survey, has certain understanding to the ISO9000 quality control system, has the processing quality bad and independent analysis ability.

有多年纸样制作经验，多年跟单管理经验，能熟练运用AQL标准收货，对外跟客户的沟通，对内和各部门的协调及在生产过程中遇到突发事件的及时处理都有一定的能力，从报价，做办，生产，出货都有丰富的操作实践能力，对洗水也有一定的基础知识、熟悉针织、梭织的制作工艺和生产流程，尤其熟悉生产过程中的品质控制；熟悉用AQL抽样检查，对ISO9000的品质管理系统有一定的认识，有处理品质不良和独立分析的能力。

On the basis of mechanism of boiling sugar of cane and the basic elements and the experiences of boiling sugar, by analyzing the affection of the elements of the process of boiling sugar to quality of the sugar boiling, synthesize traditional control and advanced intelligent control, using PID control theory and the theory of fuzzy , Implement control to process of the complex physical and chemical boiling sugar of cane. Overall program was design for boiling sugar DCS control system.

在甘蔗煮糖机理和煮糖的基本要素和经验的基础上，通过分析煮糖过程中各要素对煮糖质量的影响并阅读了大量国内外文献资料，综合传统控制与先进的智能控制手段，运用模糊控制理论和PID理论，对甘蔗煮糖这一复杂的物理化学过程实施控制，并对煮糖DCS控制系统进行总体方案设计。

Secondly, aiming at the difficulty of information sharing between reheating furnace and roughing mill which is brought by the separate control of the two facilities, and the problems of exceeding energy consumption and low security of rolling process given by the difficulty to adjust the heating process of slab dynamically, this paper presents a comprehensive optimizing control strategy of reheating furnace based on the rolling information feedback. In the presented strategy, fuzzy control and neural network are used to feed roll force and slab temperature of therolling process back to reheating furnace and the concrete furnace temperature setting compensation value can be worked out. So that the heating process of slab can be adjusted dynamically according to the heating quality of the slab, and energy consumption can be reduced, the rolling security can be ensured as well.

其次，针对目前加热炉和粗轧机的分离控制带来的生产信息难以共享、钢坯的加热过程难以动态调整而造成的能耗浪费过大、粗轧机轧制安全难以保障等问题，提出了基于轧制信息反馈的加热炉综合优化控制策略，利用模糊控制和神经网络的方法，将粗轧机一侧的能够反映钢坯加热质量好坏的生产信息，如粗轧机的轧制力、钢坯的温度等，反馈到加热炉一侧并计算出炉温设定值的补偿量，从而能够根据钢坯的加热状况动态地调整后续钢坯的加热过程，减少了能耗浪费，保障了轧制安全。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。