过程控制

First,apply PLC regulate to speed to alternate current motive, the system adopted PANASONIC PLC, series of FP∑as core,control small-scale model VF0 frequency converter PWM fan-out of pulse,and control AC motion control system's speed , use the rotatory encoder of Omron formed the speed reactive circuit.

可编程控制器是一种数字运算操作的电子系统，专为在工业环境下应用而设计，它采用可编程存储器，用于其内部存储程序，执行逻辑运算，顺序控制，定时，计数与算数操作等面向用户的指令，并通过数字或模拟式输入/输出控制各种类型的机械或生产过程。

There obtained solution curves fully display burning process of plasma in reactor core.

求解过程还引用数值反馈控制方法用以对解曲线的优化和控制。

It is very important for reactor design and control to choose and control the temperature throughout the reaction process.

选择和控制反应过程的温度是反应器设计和控制中的重要问题。

Because The Cantilever of Bucket Wheel Reclaimer is easy to automate,so this paper designs the method of controlling the reclaiming course with PLC.

因为悬臂式斗轮取料机比较容易实现自动控制，所以本文章采用PLC进行对取料过程的控制。

We built an advanced behaviour laboratory and behaviour detecting system which provided electromagnetism-proof, long time automatic recorde with video and computer and pretection of animals from secondary stress.

本研究强调医工结合，充分利用现代生物传感、电子、计算机多媒体等高技术，在声光电屏蔽与严格温湿度控制的实验室内，对动物运动行为进行长时间无干扰监测分析，整个记录和初步统计过程完全由计算机自动控制完成，克服了现有行为学研究方法对动物产生的"二次干扰应激反应"等缺点。

A important characteristic at this stage is the information electronic, it passes through to the whole process of commodity exchange, carries on the control of the circulation of commodities entire process in a higher level, recording the entire commerce activity process, is the important basis of analysis the stream of contents, guided the fund flows, carries on the management decision-making.

这个阶段的一个重要特点就是信息流电子化，它贯穿于商品交易过程的始终，在一个更高的层次对商品流通的整个过程进行控制，记录整个商务活动的流程，是分析物流、导向资金流、进行经营决策的重要依据。

The MDJ- IIIlarge-scale network earth resistance reflectoscope reflector, theobservable transformer substation network (4 Omega), the water andfire power plant, the microwave stand (10 Omega), the lightning rod(10 Omega) the multipurpose type, has used the new different frequencyalternating current supply, and has used microcomputer measure and soon processing control and signal processing, in the very good solutiontest process antijamming question, simplified the experiment operatingprocess, increased the test result precision and the accuracy, greatlyreduced experimented personnels labor intensity and the experimentalcost.

MDJ-Ⅲ型大型地网接地电阻测试仪，可测变电站地网（4Ω）、水火电厂、微波站（10Ω）、避雷针（10Ω）多用机型，采用了新型异频交流电源，并采用了微机处理控制和信号处理等措施，很好的解决了测试过程中的抗干扰问题，简化了试验操作过程，提高了测试结果的精度和准确性，大大降低了试验人员的劳动强度和试验成本。

The key point of the thesis was system's communication. The paper offered a simple and effective communicate method which achieved data communication between computer and PLC. The paper discussed the system how to change data、transfer and rejigger parameter accurately、advert problems in communication process between computer and PLC. This method is applied and innovative. The paper described the TCP protocol and its encapsulated Winsock module and its application for data communication of remote control. User defined protocol is used for data exchanging between the client and the control server.

本文提出了一种简单有效的通信方式实现了计算机通过串口与PLC的本地数据通信，阐述在实现上位机与下位机的通信过程中，如何在上位机进行数据转换、参数正确传递和更改以及实现方法和注意的问题，该方法具有一定的实用性和创新性；基于TCP协议，使用封装组件Winsock进行实时控制的数据交换是远程控制的核心任务，对此文中首先探讨选用TCP协议和Winsock封装组件的理由，详细描述了如何通过Winsock组件进行数据通信以及自定义协议。

It has stronger I/O interface to connect with industrial process compared to the common computer and has basically substituted of the logical control of traditional relay and contact devices, thus become the basic installment in automation control system.

从广义上讲，PLC是一种计算机系统，比一般计算机具有更强的与工业过程相连接的输入输出接口，已基本取代了传统的继电器和接触器的逻辑控制，并成为自动化控制系统的基本装置。

The internal control and the audit process have close relationship, the plan stage, the implementation stage and the report stage cannot leave to the internal control research.

内部控制与审计过程有密切的关系，计划阶段、实施阶段和报告阶段都离不开对内部控制的研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。