查询词典 feedback control system

Based on the characteristics of the chip we designed to control the hydraulic servo system for the core of this system, control circuit valve using digital potentiometer, through programming, automatic regulation resistance, high AD698 and accurately by an LVDT valve mechanical displacements converted single polarity dc voltage, through the simulation, the design of PID algorithm of closing valves, the degree of control system and superordination machine, realize the valve control circuit of adjustment and control.

基于上述特点我们设计了以单片机为控制核心的液压伺服阀控制电路，本系统采用数字电位器，通过编程自动调节电阻值，采用AD698 与LVDT 配合，高精确地将阀门的机械位移转换成单极性直流电压，通过模拟PID调节算法，设计实现了对阀门开合程度的控制，该系统与上位机进行通信，实现对阀门控制电路的调试及监控。

This article mainly carried on has put down work the seat, introduced stood upside down suspends the system each control method, has carried on a more detailed introduction to the condition space law; Has used Newton - the Euler method modelling; Proposed realizes with the condition space control method to a level stands upside down suspends the system the stable control, and has carried on the simulation experiment; In the experimental simulation, through change parameter R and Q, stands upside down with the condition space control method in the reality suspends on the system to carry on the confirmation, has realized the swing link balancing control, confirmed this plan to have the certain antijamming ability.

本文主要进行了以下工坐，介绍了倒立摆系统的各种控制方法，其中对状态空间法进行了较为详细的介绍；采用了牛顿-欧拉方法建模；提出用状态空间控制方法来实现对一级倒立摆系统的稳定控制，并进行了仿真实验；在实验仿真中，通过改变参数R和Q，用状态空间控制方法在实际倒立摆系统上进行验证，实现了摆杆的平衡控制，验证了该方案有一定的抗干扰能力。

Considering the significant practical meaning of experimental platform for network control system research, the author implements an Ethernet Networked Motion Control Open Platform, which includes a speed servo motor driver as a net node with embedded Ethernet interface using digital signal processor; a network controller based on PC which is convenient for realizing sorts of control algorithm; network flow disturbers, helping control on network congestion; a visual graphical monitor system on real time network data, displaying control system state curve dynamically.

系统选用电机速度伺服控制系统作为网络控制的目标对象，采用高性能数字信号处理器设计实现了内含以太网接口的电机驱动器网络化节点；设计了可方便实现各种控制算法的基于PC机的网络控制器；设计了网络流量干扰节点，可对网络拥塞程度实现定性控制；设计实现了图形化网络数据监视系统，动态显示控制系统状态曲线。

The main techniques of this system are as follows: Simulated digital map of field surveillance radar, aircraft objects display and graphic operations Simulated mathematical models of ground motions of the aircrafts Simulated realization of all kinds of airport control orders Processing of aircrafts'taxiways selection Tight coupling of airport and approach control Designs of training courses about airport control based on the standard of International Civil Aviation Organization This paper introduces the design and realization of simulation system of the field surveillance radar in detail, including five parts: The first part generally introduces Civil Aviation Air Traffic Control and simulated training of air control radar, and then analyzes the simulation requirements of the field surveillance radar, finally, presents works of the author in this simulation system items.

机场场面监视雷达仿真系统是快速高效并且低成本培养和提高塔台管制人员特别是管制学员的塔台管制技能的重要工具和设备，该系统具有以下技术要点：机场场面监视雷达仿真数字地图和航空器目标的显示以及图形操作航空器地面运动的仿真数学模型各种机场管制命令的仿真实现地面航空器滑行路线选择处理机场管制与进近管制的紧密结合按照国际民航组织标准进行设计机场管制训练课程本文详细地介绍了场面监视雷达仿真系统的设计和实现，一共分五个部分：第一部分概括介绍民航空中交通管制和空管雷达仿真训练，分析机场场面监视雷达仿真的需求情况以及作者在该仿真系统项目中所做的工作。

It is pointed out that hypercycle organization is the carrier and form of non-linear effect in RDC system, five hypercycle organization models, namely, population sub-system, society sub-system, economic sub-system, environment sub-system and resource sub-system are build. At the same time, cycle, coupled and feedback relationships in each model is discussed in detail.

指出了超循环组织是资源型城市系统非线性作用的载体和表现形式，构建了人口子系统、社会子系统、经济子系统、环境子系统和资源子系统五大超循环组织模块，并剖析了每个模块内在的循环、耦合和反馈关系。

The paper, first of all, particularly expounded the new characteristics of the control within the accountants of the enterprises on the accounting computerization basis-control object dualization, control key points singularity, control form procedure, control content data, control range magnifying, and control technique modernization; then put forward the new methods of increasing the enterprises.

具体地阐述了在会计电算化条件下，企业会计内部控制的新特点———控制对象二元化、控制重点单一化、控制形式程序化、控制内容数据化、控制范围扩大化、控制技术现代化；其次提出了企业会计内部控制应增加的新方法，并作了相关的建议。

Results: For CRF rats which made by fed with feedingstuff contains 0.75% of adenine for 4 weeks, the weight of model control group rats were lighter than that of Yi Shen Granule groups rats. The water wastage of Yi Shen Granule groups rats were less than that of model control group rats. Compared urine volume, the ejectable quantity of Na, K, Cl and proteinuria in 12 hours , the data of Yi Shen Granule groups rats were less than that of model control rats. The specific gravity of Yi Shen Granule groups rats was higher than that of model control rats. The numerical value of RBC, HGB, HCT, MCV, MCH in model control group was lower than that in Yi Shen Granule groups. The content of BUN and Cre in serum of model control groups rats were higher than that of Yi Shen Granule groups. The results of excretion test of phenolsulfonphthalein showed that the RPF of Yi Shen Granule groups rats was larger than that of model control group rats.

结果： 益肾颗粒可以使0.75%腺嘌呤饲喂法致大鼠慢性肾衰模型动物体重增长加快；给药后观察，给药组动物饮水量较少，12小时尿量、12小时钠、氯、尿蛋白排泄总量均显著低于模型组动物，尿液比重值较大；模型组动物的RBC、HGB、HCT、MCV、MCH等指标的数值较给药组动物的数值小；给药组动物血清中BUN和Cre的含量较低；给药组动物酚红排泄率均高于模型组动物；给药30天，处死各组动物，尸解观察，模型对照组动物肾脏呈灰白色，各给药组动物肾脏表面均出现不同程度的红、白相兼的颗粒状纹理，各组动物肾脏均肿大，切面可见不同程度的腺嘌呤结晶沉积。

The aerodynamics characteristic of the innovative control surfaces which are implemented on the flying wing aircraft with large aspect ratio were introduced, and elevon and split rudder were involved. And the control effects on three axis were analyzed basing on computetional fluid dynamics method. The concept of control volume was imported to introduce parameters-based method of control surfaces design. The control effect requirements of the control surfaces were also evaluated. The original design of certain aircraft's control surfaces was modified.

介绍了在该新布局飞机上采用的升降副翼和开裂式方向舵等新型操纵面的气动特点，并在计算空气动力学的基础上分析了其三轴控制效率，引进舵容量的概念提出了操纵面的参数化设计方法，基于飞机的可控性对各新型操纵面的操纵效率需求进行了评估，最终对某型飞机的操纵面初步设计进行了修正。

When one partner has requested that the other bid slam with at least second-round control of a particular suit (the "open" suit) regardless of the rest of his hand, this scheme is used for replier's actions: with no control in the open suit, pass or return to the agreed suit; with second-round control, bid six of the agreed suit (or five notrump with the guarded king); with first-round control, control-bid in the open suit (or, with, additionally, first-round or maximum-possible and an as-yet-unshown control in another suit, control-bid in that suit).

当一方要求另一方在持有特定花色第二轮控制以上的时候应叫上满贯，而不必管手上还剩下什么东西，回答人的应叫方式如下：在开放花色上没有控制时，派司或叫回被同意花色；持有第二轮控制时，叫六阶被同意花色(或持有护卫的K叫5NT)；持有第一轮控制时，在开放花色上做示控叫品(或者，附带性的，第一轮或有高限牌力可能且未叫花色上有尚未表示的控制时，则在此未叫花色上做示控叫品)。

Three kinds of arm's robust control theorys are designed: the torque control based on FNN controller, the computed torque control with sliding mode compensation and the computed torque control with WNN compensation. FNN syncretizes the reasoning ability of fuzzy control and parameters' self-learning ability of neural networks. It does not depend on the precision of the mathematical model, and can overcome the impact of the uncertainty effectively. So FNN is regarded as the manipulator controller and used to the trajectory tracking of arm control. The computed torque control with sliding mode compensation is designed.

在此基础上，研究了机械手臂的鲁棒控制法，分别设计了基于模糊神经网络的机械手臂力矩控制方法、基于滑模变结构控制补偿的机械手臂力矩控制方法以及基于小波神经网络补偿的机械手臂力矩控制方法，具体内容如下：模糊神经网络融合了模糊控制的推理能力和神经网络的参数自学习能力，它不依赖于对象精确的数学模型，能有效地克服被控对象存在的不确定部分的影响，本文把模糊神经网络作为机械手臂的关节伺服控制器，通过对网络参数的学习训练来调整机械手臂关节的控制力矩，实现对机械手臂的轨迹跟踪控制。

It has to be computed by the host for the actual clock rate.

主控制器可以用来计算实际的时钟速率。

Let's see what you got.

让我看看你的东西