查询词典 network control

Aiming at T-base diamond lathe, author use both on-line and off-line to measure the error vector of lathe workspace, and acquire good network train samples, then build two-dimensional error compensation model of lathe workspace with BP neural network and fuzzy neural network, at last build contour error compensation control system.

在分析国内外数控机床伺服闭环系统的发展现状及局限性的基础上，利用原数控系统和所研制的二维压电陶瓷微动刀架，研制了独立于原数控系统的超精密闭环控制系统。

Video server sends a RSVP message to reserve resource for client, and the system calculates and analyses QoS parameters using control information of RTP/RTCP packets and ICMP Echo request message, and controls the transmission grade by corresponding strategy to ensure network QoS, which enhances the system reaction to network condition and stabilizes the throughput and solves the problems of data transmission and using bandwidth fairly between multicast data and other kind of data when network is congestible and unstable.

整个模型系统主要由视频服务器、路由节点和客户端构成，通过RSVP协议进行资源预留协商，并在传输过程中利用RTP/RTCP包中携带的控制信息结合ICMP Echo请求报文提取QoS参数，对其进行分析判断，采用相应策略对传输级别进行实时控制，保障了网络QoS，提高了系统对网络状况的反应速度，降低了传输速率的波动性，较好解决了网络拥塞和不稳定时数据的有效传输以及与其他数据流公平占用带宽的问题。

A new fuzzy Kohonen clustering network is proposed which integrates Fuzzy c-Means model as the fuzzy control mechanism into the learning rate and updating strategies of Kohonen network.It effectively overcomes the shortcomings which occur during clustering network parameters are adjusted heuristically The numerical results show improved convergence as well as reduced clustering errors.

本文提出了一种新的模糊Kohonen聚类网络，它将模糊c-均值作为模糊控制机制结合到Kohonen网络学习和更新策略中，有效地解决了经典Kohonen聚类网络中学习参数启发式调整的缺点，仿真结果表明网络的收敛性和分类结果都得到了很大改善。

Fifth, it is very promising to combine neural network or fuzzy neural network and adaptive control theory into a adaptive neural network system, aiming at solving the problems of non linearity and nondetermination.

第五，为了较好地解决系统非线性、不确定性的问题，将神经网络、模糊神经网络与自适应控制理论相结合形成自适应神经网络系统是一条有广阔前景的途径。

The thesis based on Yellow River Diversion Project. Through the research of the existing design of the supervising system of Yellow River Diversion Project, this passage pointed out some problems hard to be dealt with as follows:(1) Owing to the dispersion of control points and remote transfers of data, it cost a lot to construct the network of the supervising system and it was hard to implement the construction.(2) The connection mode of network needed to be taken into acount. Once the configuration of network changed or the nodes increased, the supervising system needed to be reconfigured.(3) Owing to the tanglesome physical communication line, the man-made communication error happened frequently.(4) When the communication malfunction occured, it needed various engineers to check and repair the fault.(5) It cost a lot to operate and maintain the supervising system.

本文以世界银行援建项目&Yellow River Diversion Project&(引黄入晋工程，编号：0015-K81062)为背景，在对引黄入晋工程的远程监控系统进行研究分析的过程中，指出了该系统在目前采用的有线光纤和有线电缆通讯技术下难以处理的一些问题：(1)由于监控点分散且传输距离较远，有线光纤和有线电缆的网络建设成本很高，实施困难；(2)需要考虑节点之间的连接形式，一旦网络结构发生变化或节点需要扩充，监控系统便需要调整，耗费大量的人力物力；(3)由于系统庞大，通讯的物理线路较为繁乱，在建设和维护阶段容易出现人为触碰等引起的通讯故障；(4)在出现通讯故障时，需要多方人员配合进行故障检测，不仅耗费人力和物力，且不利于故障排除；(5)运行和维护成本较高，需要很多运行维护人员进行大量繁杂的工作。

The direct network controller with feedback and multi— network inverse—model learning controller are proposed to improve the ability to reject the disturbance and to solve the learning difficulties of the network controller of the unmodelled system. Furthermore the learning and adapative ability of this control system are strenthened.

全面分析了各种网络控制结构和学习方法，提出了带反馈的直接网络控制器和多网络逆模型学习控制方法，提高了网络控制器的抗扰能力，解决了被控对象模型未知条件下的网络控制器的学习问题，从而增强了整个控制系统的学习和应变能力。

In the design of the software and communication network, the concept of TTCAN makes CAN communication more soft and rhythmical. Moreover, the real-time communication between the control network for field device and information network is completely realized by Internet. As a result, the campus electricity consumption can be remotely detected, reliably monitored, and safely maintained in real-time.

通信网络及软件上采用TTCAN概念对CAN网络进行有序化，建立TTCAN通讯机制，进而通过转换接口接入Internet，实现控制网络与信息网络实时通信，便于安全、实时、可靠地实现远程监控、诊断和维护校园用电。

The network communication is applied in vehicle detect system which is one of the most important parts in orbit traffic. The working information of the vehicles can be detected and transmitted to the vehicle control system on the floor through the vehicle detect system. The realization of network communication is introduced into the vehicle detect system, and the mechanism of network communication is transplanted to the embed system based on Reworks.

主要介绍了轨道交通车况检测系统中网络通信技术的应用，车况检测系统是轨道交通系统的重要组成部分，通过车况检测系统可以实时采集列车的车辆工况监控信息并将它及时传输给地面的车辆工况监控系统，本文阐述了在车况检测系统中网络通信的实现方法，并给出了基于Reworks嵌入式系统下的网络通信机制。

A control scheme of micropositioner is proposed, two control methods are put forward: PID feedback control with BP neural network modeling in feedforward loopand fuzzy-PI sectionalized multimodal control

提出了微定位器的硬件控制方案，给出了两种控制方法：带有BP神经网络前馈环的PID控制方法和Fuzzv—PI多模态分段控制方法。

In the light of hysteresis, creep and nonlinearity of piezoelectric actuators, two control methods are presented. One is PID feedback control with BP neural network modeling in feedforward loop. Another is Fuzzy-PI sectionalized multimodal control. They are used for highspeed and precise position control of models driven by piezoelectric actuators.

针对压电陶瓷存在迟滞、蠕变和位移非线性等不足，提出了两种压电陶瓷微位移驱动器的位置闭环控制方法：带有BP神经网络前馈模型的PID控制方法和Fuzzy—PI多模态分段控制方法，实现了压电陶瓷微位移驱动器快速、高精度的位置控制。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了