查询词典 process control

Finally, the multiple-model predictive control is used in the control of refining process.

最后，对打浆过程的多模型预测控制进行了仿真研究。

The method controls a whole operation process mainly through a PC, wherein the PC transmits a preset polarity parameter and an electric testing parameter to a PCI control module, and a light test parameter to a light test module, while the PCI control module transmits corresponding parameter signal to a polarity detection module and an electric test module; moreover, a fixture is started to carry out parameter testing, and then the data tested by the fixture is transmitted to the PC.

本发明主要是通过PC机来控制整个操作过程，其中PC机把预设极性参数、电测试参数传输给PCI控制模块，和由PC机把光测试参数传输给光测试模块，而PCI控制模块再把相应的参数信号传输给极性检测模块和电测试模块，并启动夹具进行参数测试，再把由夹具测试所得数据传输给PC机。

An active mold temperature control method was presented and applied in solidification by developing a measure and control system. The forming process was controlled by the active outer controllable temperature field, which was brought by the individual heating and cooling units distributed in the proportional spacing towards the solidification direction in the mold.

摘 要：提出一种主动式模具温控方法，并开发测控系统将其应用于凝固成形中，通过主动的外加可控温度场来控制零件成形过程，实现零件按自下而上的顺序凝固。

The brazing process includes selection of brazing materials, pre-brazing preparation, regulation and deformation control of brazing parameter. The Al-Si alloy wires core was used as filler metal and the gasoline flame with quincunx nozzle was used as heating source. Through FEM analysis, a set of technological equipment was designed to control brazing distortion.

通过对焊接材料、焊接规范、焊接工装等方面进行的试验和分析，确定了6063铝合金门窗框的钎焊采用无腐蚀性的Al-Si合金铝钎焊药芯焊丝作为钎料，汽油火焰作为加热热源的工艺方案，并通过有限元分析设计了简单易用的焊接工装以控制焊接变形。

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。

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。

To accord with the nature of control flow,the author investigates the relation between control and respondence of process and activities firstly,then the routing relationship between activities directly.

直接从过程和活动本身及相邻两个活动间的控制响应关系和路由关系入手，开发了一种基于ECA规则的控制流建模方法。

This paper introduces the principle of electromotor based on single chip computer 8051PWM,and the realization process of reversible control and non- reversible control .

介绍了基于单片机8051PWM控制的电动机原理，阐述了8051与直流电动机构成的电机可逆控制和不可逆控制的实现过程。

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。