In hardware electricity of the auto - control system detailed introduced composing of the water road and work principle , row put the smoke and dust ' s temperature examination and control , defend to wear away quickly the thermocouple ' s adoption , and the exterior connect the connector . and give outed the diagram of internal hardware electricity principle 在该自控系统的硬件电气中详细介绍了水路的构成及工作原理,排放烟尘的温度检测及控制,防磨损快速响应的热电偶的采用,远程上位机控制及外部接线端子。并给出了内部硬件电气原理图。
These simulations include the stability analysis , and dynamic variety while the influent and the feedback coefficient are variety . 5 . an auto - control system project used in wastewater treatment plant based on ethernet and plc is introduced ; and for the pumping station , using dynamic programming ideology , builds a model with the least running - time optimization goal , and introduces the software realization using plc 以作者负责的一个项目为例,详细的介绍了如何基于工业以太网和plc实现污水处理厂的全厂实时自动监控系统;同时,对污水处理厂的重要环节?污水泵站,应用动态规划思想,建立以泵组使用时间最短为优化目标的数学模型,并介绍了该模型基于plc的软件实现。
The water turbine regulation system is a complicate auto - controlling system , it ' s small fluctuation dynamic course means : when the water turbine regulation system is interfered by tiny disturbance of load or command signal , the change of different parameters in the system is less , we can thought they are subtle change near by the discussing conditions , so we can make each tache in the system linearization , that is , describe the dynamic specialty of each tache and the whole system by means of linear differential equation 水轮机调节系统是一个复杂的自动控制系统,其小波动过渡过程是指水轮机调节系统在受到微小的干扰(负荷或指令信号扰动)时,系统中各参数的变化都较小,可以认为是在所讨论工况点附近作微小变化,则可将调节系统各环节加以线性化,用线性微分方程式来描述各环节及整个系统的动态特性。
This paper takes the practicing - study on the new type buring furnace system as its thesis , and it emphasizes the raising efficiency of burning . in the paper , one new type burning furnace based on the new process and construction has been designed , furthmore , a new way what related auto - control system to raise fficiency has been studied 本文以燃烧炉的应用研究为课题,以提高燃烧炉燃料利用效率为重点,从系统流程和结构上研究开发出节能的新炉型,从新型燃烧炉系统的自动控制上进一步研究探讨了提高热效率的方法,重点探讨了新型燃烧炉的微机自动控制。
This thesis introduced to basic concept of removed dust tecnology and in current cement profession widespread usaging electricity removed dust devices " basic construction and basic principle , and german siemens s7 - 200 of basic construction . detailed expatiate programmable controller in the wet tower auto - control system ' application and software construction of the auto - control system - moreover introduced to wet tower auto - control system " technique parameter and in the actual cement industry ' application effect 本论文介绍了除尘技术的基本概念及目前水泥行业普遍使用的电除尘器的基本结构和基本原理,以及德国西门子s7 - 200的基本结构。详细阐述了可编程控制器在增湿塔自控系统中的应用以及自控系统的软件结构。另外介绍了增湿塔喷雾自控系统的技术参数及增湿塔在实际水泥工业中的应用效果。
( 4 ) the man machine interface has been devised , which can show the working status and digitally display multichannel electrical parameters . < wp = 4 > via keyboard , users can input the set point of two kinds of auto - control system and manually operate control systems , whose manual / auto switch is unperturbed ( 4 )设计了电源的人机对话接口,为用户提供了工作状态指示和四类电参数的数字显示,支持两类控制系统给定值键盘输入、手/自动无扰切换和键盘手动操作等功能。
By use plc , system can complete function as follow : this auto - control system be applicable to the temperature and smoke and dust the deal the variety quick , control the process is difficult with the operation is ; by the temperature controlor can automatically follow to the wet tower " exit temperature , error in the ? 3 v including ; by to automatically spray fog to lower the electric resistance , with the function for full the electricity equipment accepting the dust ; because of adopting feedback closed loop , and come to a to respond to the speed quick , constant temprature control the accuracy is high ; because of adopting the sensors , and make the system circumstance to leak water quick ; system have many control parameter can set exit control temperature and adjust value low limit by key ; can communication with remote computer and have remote control 通过使用plc ,使该自控系统可以完成如下功能:适用于温度及烟尘量变化快、控制过程难以操作的场合;通过温控表自动跟踪增湿塔出口温度,误差达到3以内;通过自动喷雾来降低粉尘比电阻,以此充分发挥电收尘器的作用;由于采取了闭环反馈回路,达到了响应速度快,恒温控制精度高;通过使用各种检测传感器,使得异常情况泄水快;该自控系统具有多套控制参数,增湿塔出口控制温度及调节阀下限值可通过按键设定;可与上位机通讯,具有“现控远控”功能。
The main idea in this paper is to design greenhouse computer distributed auto - control system . the system is a kind of principal and subordinate structure made up of one pc and several microcontrollers , principal rs - 485 bus communication network and crc validated algorithms to ensure data transmitted correctly . the local operation in greenhouse can be obtained by monitoring environment parameters and warning information can be read into pc 本文的主要设计思想是构建温室计算机分布式自动控制系统,由一台pc机与多个微电脑控制装置组成主从式分布结构,采用总线式rs - 485通信网络和crc校验的通信算法进行数据传输,通过读取实时和历史存储的环境参数值和报警信息来监测温室的运行情况。
Based on the home - made work of m ? ller valve and requisite control method , the paper puts forward a small model of control system of plc ; discusses the design way , structure characteristic , software , hardware and the application of the system . we design the auto - control system for m ? ller valve independently , which is composed of pneumatic and electric elements and plc ; at last sum up the characteristic of the system and its application prospect Ller阀门的基础上,从实际需要的控制方式入手,提出了一种结合plc的小型控制系统的模型,并探讨了系统的设计思路、结构特点、软硬件实现及应用;自行设计了由电气和气动元件以及plc组成的控制系统,实现m