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Finally, the feasibility and applicability of the designed system was verified by practical particleboard hot-pressing experiment. The development of the Automatic measurement system for monitoring the internal-mat environment was based on LabVIEW program which is a powerful virtual instrument design workbench. Developed system in this paper can provide a friendly interface, an animated process-monitoring window including a real-time data acquisition of 2 pressure signal channels and 4 temperature signal channels, as well as the asynchronous serial communication between measuring computer and the data acquisition. Practical application testing and data analysis showed that this measuring system was useful and easy to operate by providing accurate and reliable data.

本文详尽介绍了人造板热压过程中板坯内部环境检测系统各组成部分的工作原理以及它们在系统中的作用，着重阐述了系统硬件设计和检测软件的开发，并通过刨花板的热压试验，验证了系统设计可行性和先进应用虚拟仪器系统开发平台-LabVIEW 编制了热压板坯内部环境自动检测系统的应用软件，该软件具有友好的人机交互界面、简单直观的：工艺流程监控、安全可靠的故障处理措施等优点。

It also can realize asynchronous serial communications with the computer which connects with it to make up network to show the computer and network's advantageous lightly and improve its intelegence.

ADE7755引脚F1和F2一较低频率形式输出有功功率平均值，能直接驱动机电式计度器。引脚CF以较高频率形式输出有功功率的瞬时值，用于校验。

Keywords: asynchronous motor; transistor;computer control; SPWM inversion

关健词：异步变频电动机；变频器；SPWM逆变；绝缘栅双极性晶体管；微机控制。

Chapter one and chapter two analyse the basis theory and give a whole design plan and expatiate the basic exoterica of system inculding primary technology for application. It involves the basic control theory of satellite antenna and analyse for the whole function. Chapter three gives the hardware design which includes hardware etlectrocircuit structure, principle chart, selecting all kinds of parts of the apparatus , the sensor elements and the design of serial communication electrocircuit etc. Chapter four and chapter five introduce software design for the SCM and the personal computer, giving mainly design theory and material program which includ the design of searching for the satellite and searching for the high-point and the program development by Delphi on PC, explaining the basic principium of asynchronous serial communication for epigyny computer and hypogyny computer.

第一、二两章阐述了系统的理论基础及应用的主要技术，包括卫星天线控制基础理论和整体功能分析等等；第三章是系统硬件设计，包括硬件电路组成及原理图、各类元器件的选取及传感器原理，串行通信电路设计等：第四、五两章是单片机、PC机软件设计，给出了主要部分的设计原理及具体程序，包括监控软件设计、寻优设计、寻星设计，PC端Delphi程序设计开发等，并阐述了PC机和单片机异步串行通信的基本原理，是本课题的重点所在。

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

In asynchronous transfer mode, one can only send and receive a self-section is Microcomputer often the methods used.

在异步传送方式下，一次只能发送和接收一个自节，是微型机经常使用的方法。

This paper explores the application of the genetic neural network in the link capacity control of the asynchronous transfer mode.

研究遗传神经网络算法在异步转移模式链路容量分配中的应用。

A learning method which used neural networks for service quality control in the asynchronous transfer mode communications networks have studied in this paper.

摘 要：一种新的基于神经网络学习的算法应用ATM 通信网络的控制系统。

Examples of network protocols are Token Ring, Ethernet, and Asynchronous Transfer Mode.

网络的协议有"令牌环"，以太网，异步传输状态等。

Artificial neural network; genetic algorithm; asynchronous transfer mode; link capacity control

人工神经网络；遗传算法；异步转移模式；链路容量分配

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失