信号机

By analyzing, the fault transient component of third harmonic voltage at neutral is approximately equal to that at terminal. Choosing their sum and difference as the action and restrai nt signal respectively, the protection detects the ground fault by comparing the spectrum energy of action and restraint signals.

该保护方案根据单相接地故障后机端和中性点 3次谐波电压的故障暂态分量近似相同的特点，把两个故障分量的相量和与相量差分别作为保护动作信号及制动信号，通过比较数据窗内相应信号的谱能量检测定子单相接地故障。

In order to ensure system stability and reliability, use of pure software dual module hot spare mechanisms to achieve system reliability and stability, by dual module hot spare system architecture design, to implement the dual module hot spare system from the system start,"heartbeat" signal transduction, fault detection system and the main switching equipment for several major aspects.

为了保证系统的稳定性与可靠性，采用纯软件化的双机热备机制来实现系统的可靠性与稳定性，通过对双机热备系统进行总体结构设计，从系统启动，"心跳"信号传递，故障检测以及系统主备机切换等几个主要方面对双机热备系统予以实现。

Brillview Technology, a leader in Chinese image processing sector, has created pure hardware image processing techniques, which are not only innovative and originative but also help solve various challenges in image processing applications such as multiple RGB signals display, free overlapping of different types of signals, acquisition and output of ultra-high resolution signals, computer collapse and virus corruption, etc. This enterprise advances Chinese image processing technology up to an international advanced level and opens a new era of display control.

作为中国市场图像处理领域的领导者，博睿科技独创的纯硬件的图像处理技术，极具创新和想象力，解决了图像处理领域RGB多信号显示，各种信号类型之间的自由叠加，超高分辨率信号的采集和输出，死机和病毒困扰等诸多瓶颈，带领国内的图像处理技术进入国际先进水平，开创了显示控制的新纪元。

The method controls a whole operation process mainly through a PC, wherein the PC transmits a preset polarity parameter and an electric testing parameter to a PCI control module, and a light test parameter to a light test module, while the PCI control module transmits corresponding parameter signal to a polarity detection module and an electric test module; moreover, a fixture is started to carry out parameter testing, and then the data tested by the fixture is transmitted to the PC.

本发明主要是通过PC机来控制整个操作过程，其中PC机把预设极性参数、电测试参数传输给PCI控制模块，和由PC机把光测试参数传输给光测试模块，而PCI控制模块再把相应的参数信号传输给极性检测模块和电测试模块，并启动夹具进行参数测试，再把由夹具测试所得数据传输给PC机。

This article introduces the conversion of the video signal(SAA7113),the processing of the video signal and the operation principle and procedure of the correspondence with PC machine in the system.

研制了一种基于FPGA+DSP的数字视频信号处理系统，详细分析了系统中视频信号的转换(SAA7113)、视频信号的处理以及与PC机通信的工作原理和流程。

In this method, the sine, cosine signal is converted by three line autosyn and its output is a binary code based on AD2S83. The measurement datum can be read and displayed by computer.

着重研究了自整角机的三相信号通过隔离转换电路转换成正、余弦信号，输入到高精度AD2S83的轴角／数字转换电路转换成二进制数字信号，供给计算机系统读数显示。

A new strip-line beam position monitor system was designed recently,which is not interceptive to beam,qualified in precision and easy to digitalize the results.

信号处理系统选用对数比的信号处理方法，由带通滤波器、对数检波模块、信号放大器、模数转换模块和上位机组成。

At first the Digital frequency shifting repeater transforms the original signal to the 70MHz IF signal in the donor, then the Frequency shift relay digital processing unit Digital Spread Spectrum the IF signal and through the 5.8GHZ signal to transmit to the remote end.

数字移频直放站首先在近端机内将将信源信号转换为数字70MHZ中频信号，通过&移频中继数字处理单元&将中频信号数字扩频后通过5.8GHZ的信号传送到远端。

The introduction of some products are as follows: First, Taiwan's electronic devices Aosta Product:(self-produced self-marketing) program-controlled voltage insulation tester, grounding resistance, leakage current, micro-resistance tester, electrical parameters of the test Transformer parameters meter, insulation resistance tester, electronic load, on-machine, cable tester, variable frequency power supply, LCR Bridge, frequency meter, mV table, the standard signal generator, oscilloscope, signal generator, signal generator, digital multimeter, distortion device, before shaking device, spectrum analyzer, capacitance meter, inductance meter, modulation device, Sweep Signal Generator, Telephone Analyzer, Calibrator Table III, EMC Electric Tester, regulated power supply and so on.

现将部分产品介绍如下：程控耐压绝缘测试仪、接地电阻、泄漏电流、微电阻测试仪、电参数测试变压器参数测量仪、绝缘电阻测试仪、电子负载、导通机、排线测试仪、变频电源、LCR电桥、频率计、毫伏表、标准信号源、示波器、信号发生器、信号源、数字万用表、失真仪、抖摆仪、频谱分析仪、电容测量仪、电感测量仪、调制度仪、扫频信号发生器、电话分析仪、三用表校准仪、EMC电测仪、稳压电源等。

This graduated design program, data collection ware produce is the only flat machine of 89 C51 that uses the company of ATMEL with AD0809 chip do a collection simulated voltage signal, conversion number word signal passes string mouth again by only flat machine to dispatch to the handling of personal computer, additionally, 3 number pipe LEDs show the digital information of collection.

本次毕业设计课题，数据采集器制作，是利用ATMEL公司的89C51单片机和AD0809芯片做一个采集模拟电压信号，转换为数字信号，再由单片机经过串口发送给PC机处理，另外三个数码管LED显示采集的数字信息。关键字：单片机，数据采集，信号处，AD0809芯片

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。