查询词典 feedback control system

To further enhance the autoleveling technology of drawing frame, a new type of dual open-loop control system was issued based on the analysis of the quality of the current autoleveling control system of drawing frame. This paper presented a mathematical model of the new control system, analyzed its mathematical theory, and elucidated the theoretical basis of dual open-loop autoleveling control system.

为进一步提高并条机自调匀整技术，在分析纺织并条机自调匀整控制系统优劣的基础上，提出一种新的双开环控制系统，给出了新型控制系统的数学模型，详细分析了其数学原理，阐述了双开环自调匀整控制系统的理论基础。

The topologies and operating principles of power supply and control system are introduced. Based on the continuous hereinbefore two-year operations of control system, control system characteristics are analyzed and control system saving investment/energy/resource specific effects are researched.

论文介绍了供电系统和控制系统的拓扑结构和工作原理，以控制系统连续运行两年多的实际状况为基础，分析了控制系统的特点，研究了采用该控制系统所带来的节约投资、节约能源资源的具体效果。

An impulsive control scheme of the Lur'e system and several theorems on stability of impulsive control systems was presented, these theorems were then used to find the conditions under which the Lur'e system can be stabilized by using impulsive control with varying impulsive intervals. The parameters of Lur'e system and impulsive control law are given, a theory of impulsive synchronization of two Lur'e system is also presented.

提出了Lur'e系统的脉冲控制系统，利用关于脉冲系统稳定的几个定理，得到了具变化的脉冲区间的Lur'e系统镇定的充分条件；并且给出了Lur'e系统的适当参数与脉冲控制律，使得两个Lur'e系统脉冲同步。

By comparing the open-loop control system, closed-loop control system and mixed-loop control system, the paper drew a conclusion that the new control system could shorten the blind area, eliminate the dead area, and autolevel cotton sliver twice.

通过比较开环、闭环和混合环控制系统认为，该控制系统能够缩短盲区，消除死区，并能2次匀整条干。

In the system of high precision and low speed, Because of the existence of the nonlinear friction, the static and dynamic performance of the servo system is very bad, such as stick slip, hunting, large error and so on, Because the traditional control of PID is hard to solve the nonlinear problem of the servo system, so this paper begins to introduce a new control method which is named adaptive fuzzy PID, It utilizes the rule of the fuzzy control to adjust the parameter of proportion, integral and differential on line, So this control method has some intelligence to improve the static and dynamic performance of the servo system.

在高精度、超低速伺服系统中，由于非线性摩擦环节的存在，使系统的动态及静态性能受到很大程度的影响，主要表现为低速时出现爬行现象，稳态时有较大的静差或出现极限环振荡；由于传统的PID 控制很难解决伺服系统中的非线性问题，因而不能适用于高精度、超低速伺服系统；本文通过引入模糊自适应整定PID控制，利用模糊规则在线调整比例、积分、微分环节，使系统具有一定的智能，从而非常明显的改善伺服系统的静态及动态性能。

This paper is through remote control technology and MCU integrated lighting control system, The system is based on the computer's control system, remote-controlled manner to control lighting system.

本文就是通过遥控技术和单片机的相互结合设计灯光控制系统，该系统是基于单片机的控制系统，用遥控的方式对系统灯光进行控制。

The author emphatically describes Quantum PLC based process control systems of the hot-blast stove body, Siemens S7-400 PLC (software configuring in PCS7 pattern) based hot-oil preheating control system of the hot-blast stove and the heat-exchanging electric control system of the hot-blast stove based on the mix- configured system of Siemens S7 and Siemens S5 series PLC, elaborates their system constitutions, software and hardware configurations, operational principles, main control functions and applicative effects.

摘 要：本文简介了邯钢7#高炉热风炉的工艺状况，重点描述了基于Quantum PLC的热风炉本体仪控系统、基于西门子S7-400PLC (PCS7)的热风炉热油预热控制系统和基于西门子S7与 S5系列PLC混合配置的热风炉换炉电控系统的构成、软硬件配置、工作原理、主要控制功能和应用效果。

Numerical control system through research, analysis of the mechanical part of the X52K vertical milling machine, feed servo system design and calculation, and further to the electrical control system for NC transformation, the use of computers to vertical, horizontal feed system for open-loop control, demand In the vertical and horizontal with straight lines and circular interpolation function, and the vertical, horizontal pulses are equivalent 0.01mm / pulse, control X to, Y coordinates of the two.

经过对数控体系的研讨，阐发了X52K立式铣床的机器部门、进给伺服体系等的计划盘算，进一步对电器控制体系举行数控改革，使用微机对纵向、横向进给体系举行开环控制，要求在纵向和横向具有直线和圆弧插补功效，且纵向、横向的脉冲当量均为0.01mm/脉冲，控制X向、Y向两个坐标。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

A synthetic model of multi-level production planning and control integration is brought forward, which integrated Master Production Schedule , Material Requirements Planning , Shop Floor Control , order acceptance control, order release control and process control into a whole. Besides, a new method of production management—— Theory of Constraints is introduced into the traditional MRP, and a method to integrate TOC with MRP is put forward. As a result, a system of production planning management for ceramics enterprise is developed. Then several problems of shop planning and control for ceramics enterprise including the modeling of production line, the optimized utilization of kiln, the complement and due-date of products are discussed. A mathematical programming model of equalization production for ceramics production line is set up. An optimized model is put forward, which uses genetic algorithm to solve the sequencing problem of ceramics before the kiln.

以生产计划与控制的集成为目标，提出将一个企业中的主生产计划、物料需求计划、车间作业计划与接受订单控制、投料控制与生产控制集成的多级生产计划与控制的总体模型，将一种新的生产管理方法——约束理论引入传统的MRP中，提出了实现TOC和MRP集成的具体方法；针对陶瓷企业的特点，为重庆兆瓷研制了一套陶瓷企业生产计划管理系统；并对陶瓷企业车间计划与控制中的一些具体问题进行了研究，建立了陶瓷生产线均衡生产的数学规划模型，就窑炉的优化利用、产品配套和交货期问题、陶瓷生产线的能力平衡等问题进行了研究。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。