Generic architecture for intelligent control systems

In this paper we describe a generic architecture for an intelligent controller which can be used at any level within a shopfloor control hierarchy for a computer-integrated manufacturing system. For each assigned job, this controller decides which process plan will be used and the start and finish times for all the tasks in that plan. In addition, the controller monitors its subordinates' execution of those tasks and recovers from reported errors. We describe the functions that each controller performs, with additional discussion on the frequencies at which those functions are performed.     

智能起重机的体系结构

体系结构是智能起重机中最基本且非常关键的环节,它决定着系统的整体行为和整体性能。文中详细介绍了智能起重机的硬件结构和软件结构,阐述了其各个组成部分的性能特点和功能作用。体系结构的成功运用,为起重机智能化提高起到了决定性的作用。     

间歇聚丙烯生产的智能控制方案

针对间歇聚丙烯生产过程提出一种智能控制方案，由于该反应过程与众多间歇过程一样特性复杂，具有严重的非线性和时变特性，用常规的控制理论来实现自动控制十分困难，参考熟练操作工的控制经验，笔者将模糊控制和常规的控制方法结合起来，提出一套智能复合控制方案，得出了较好的实验结果。     

智能工厂信息化标准体系架构研究

通过分析智能工厂信息化关键技术,围绕智能工厂价值链的全生命周期,从现场层、管控层、企业层、平台层以及协同层五个维度搭建了智能工厂信息化架构。通过调研国际国内智能工厂信息化标准现状,建立了适合我国国情的智能工厂信息化标准体系架构,同时针对我国智能工厂信息化标准的研制工作提出了意见建议。     

基于智慧全景控制大数据的设备物资全寿命周期实时监测体系架构

多维视角分析了智慧电网落地实施大背景下构建电力设备物资全寿命周期实时监测体系架构的内在驱动需求性,构建了基于智慧全景控制大数据的设备物资全寿命周期实时监测体系架构并研发了配套原型系统。借助嵌入Storm流计算的数据融合算法对多维数据进行快速计算与暂存,利用ZigBee构建多节点无线物联自组网,采用Pandas分布式数据处理模型全景还原电力设备物资真实工作状态。研发对应原型系统开展运维效能验证试验,结果表明,原型系统具备电力设备物资多维状态数据获取、传送、解码回复、全景复现等全链功能,对智慧电力的深度融合落地实施具有积极作用。     

Development of a stability intelligent control system for turning

This paper presents a stability control system based on a new strategy, with application in turning. It works by permanent assessment of the system operating point position relative to the stability limit, and process parameter permanent, in-process modification such as this point is always placed in the stable domain zone that gives the highest process performance. In the case of turning, here approached: (1) this zone is the stability limit proximity; (2) the system operating point position is determined by assessing a cutting force monitored signal feature; and (3) this position is changed by modifying the cutting edge setting angle, the feed rate, and the cutting speed, as it follows: when the risk of overpassing the stability limit is imminent, the setting angle is increased, followed by a feed rate diminishing and then by a worked piece rotation speed reduction, while immediately after surpassing the risk, the three variables modification is reversed, this way the chatter onset being permanently avoided and the performance kept in every moment at the highest possible level. The system was experimentally implemented on a transversal lathe. The results of tests on dedicatedly designed specimens are showing a machining productivity significant increase, in conditions of a stable cutting process. The system is simple, and it can be easily added to the existing CNC machine tools, without important modifications.     

一种新型智能流量控制阀的研究

阐述了一种新型智能流量控制阀的设计方法、数值计算和实验验证过程.利用加权面积方法设计了配流板的通流面积,并用数值模拟的方法,计算和分析了阀内流体的压力、速度场的分布以及阀门阻力系数的变化.最后搭建实验平台,验证了阀门的流量特性.结果表明加权面积法适用于新型智能流量控制阀的设计.     

智能控制的发展前景

介绍了智能控制的发展历史和现状,并通过分析现有智能控制的主要方法和总结它们的特点及不足,指出智能控制当前的研究热点及发展前景.     

基于CAN总线技术的智能车门控制系统

控制器局域网(CAN)总线作为一种在汽车领域广泛使用的现场总线,可有效实现分布式控制;局域互连网(LIN)总线协议是作为对CAN总线网络进行补充的一种低成本的新兴协议.探讨了基于结合了上述2种总线的分层网络结构的汽车车门控制系统,介绍了具体的硬件组成和软件实现,同时提出若干抗干扰措施,以及1种有效的防夹算法,实践证明按照这种方法所设计的车门系统具有很高的可靠性和实用性.     

智能控制在烟厂烟丝烘干控制系统中的应用

本文给出了烟丝烘干系统的控制策略,利用仿人智能控制实现了烟丝烘干系统的控制,给出了该控制器的详细设计。     

智能氧化锆测氧仪设计

针对工业氧化锆测氧过程中存在的锆头老化快、特性易漂移、校正困难等不利因素,提出一种新的测氧仪设计方法,采用无电位计设计、程序自动校正、锆头老化的软件补偿等措施,可以有效地克服以上缺点。     

Verification of intelligent control of a launch vehicle with HILS

The reliability of an intelligent self tuning controller called the brain emotional learning based intelligent controller (BELBIC) to attitude control of a nonlinear launch vehicle (LV) simulation with hardware-in-the loop simulation (HILS) is studied. To set up the HIL system of the LV a six-degree of freedom simulation of the LV and a hydraulic actuator, which was used for the pitch channel thrust vector control (TVC) actuator of the LV, is performed. The results of the BELBIC controller with a fuzzy controller (FC) and a PID controller in this HILS of the LV to control the pitch channel of the LV have been compared.     

人工气候室智能监控系统设计

针对人工气候室这样一个复杂非线性系统．应用电子计算机技术．网络通信技术，采用控制理论的研究成果．设计出一套能很好地控制温度、湿度，光照度等主要气候参数的智能监控系统。实际运行效果表明该系统工作可靠性高，操作方便．稳态精度高。     

实用智能型遥控系统设计

文章通过对现有红外遥控系统的分析,提出了一种智能型红外遥控系统的硬件组成原理及软件设计思想,阐述了具体的设计方案。该控制器可以通过学习、分析和记忆多种遥控器的编码,实现对多种电器的统一控制。     

智能PID控制综述

传统的PID控制应用于复杂的实际系统时存在一定的局限性，而融合了先进智能控制思想和传统PID构成的智能PID控制器则具有良好的特性。文中介绍几种常见的智能PID控制器的构成方式，包括模糊PID，神经网络PID，专家PID控制及基于遗传算法的PID控制等，并分析了各自的特点。     

The control system of intelligent wheelchair

<正>A control system of intelligent wheelchair based on spce061A and C8051 is introduced in this discourse.It also introduces the theory of the control system,and the design of hardware and software.The control system including the speech control system of SPCE061 and the keyboard control system of C8051.The movement including marching,countermarching,speedup,slowdown,turning left,turning right,uphill and downhill were realized.The speech control system control based on SPCE061A and C8051 is simple,a high ratio of capability to price.The system can be easily realized and enlarged.     

纸浆浓度混合控制算法研究

本文针对纸浆浓度系统具有大滞后,模型不确定的特点,设计了纸浆浓度混合控制系统。该设计方法利用变论域模糊控制方法和基于PSO的PID控制方法各自的优点,采用模糊软切换方法实现了两种控制器的选择,较好的保证了纸浆浓度的精确控制。运行结果表明,该方法简单方便,对纸浆浓度控制系统进行了控制,取得了满意的控制效果。     

Machining force control with intelligent compensation

Force control is an effective means of improving the quality and efficiency of machining operations, so various approaches for force control have been proposed. However, due to the nonlinear, time-varying and uncertain characteristics of machining processes, it is difficult to develop force control systems that are stable and robust over the full range of operating conditions. This study proposed two control schemes to address such difficulties in the field of nonlinear force control by using a linear feedback proportional-derivate (PD) controller respectively with two different nonlinear intelligent compensators: fuzzy logic compensator (FLC) and neural network compensator (NNC). The PD controller is used to improve the transient response while maintaining the stability of the process system, and the FLC or NNC is employed to eliminate the steady-state error and compensate for the system nonlinearity (or uncertainty). The applications of the proposed schemes in machining processes show that the controllers adapt well to nonlinearity under time-varying cutting conditions in comparison to PID, PD, and FLC. The online updating of the NNC parameters through the Feedback-Error Learning can further improve the system performance.     

智能卸料车的PLC控制系统

目前，PLC的控制程序绝大多数采用的是符合工厂电气技术人员习惯的类似于继电器线圈和触点等符号组成的梯形图，这种程序虽然最容易被工厂电气技术人员接受和掌握，最容易将现有的继电器控制线路移植成PLC的梯形图，但它在很大程度上限制了PLC强大功能的发挥，当控制功能复杂时，由接点和线圈组成的逻辑线路相当复杂，相应的程序存在以下几个问题：