查询词典 trouble signal

Speaking from the function, the long-distance image surveillance system can be divided into two parts. The first part is a module of signal gathering and control. It uses AT89C51 as the main processor, which includes sensor signal measure, autodial, circuit state measuring, DTMF signal decoding, and automatic control.

从功能上讲，远程图像监控系统大至可分为两部分：第一部分是以A789C51为主处理器的信号采集和控制单元，包括传感器信号检测、自动拨号、线路状态检测、DTMF信号解码和自动控制五个小模块，用以实现对现场信号的采集、自动拨号报警和远程控制。

The bridge loses balance and sensitive parts have a output signal,which will transform to related current signal after differential magnifying and conversion between current and voltage. Linear 4~20mADC standard signal is formed by compensation of magnifying and non-linear rectified ring circuit ,and second temperature compensation.

输出的电信号，经过差分放大，电压电流转换，变换成相应的电流信号，通过放大和非线性矫正环路的补偿，以及精密的二次温度补偿，产生与输入压力输成线性关系的4~20mADC 二次制标准信号。

The input signal is divided into signal blocks, which are processed to provide an estimate of a short-time perceptual band spectrum of the input signal.

输入信号被划分成若干个信号块，对这些信号块进行处理以提供输入信号的短时间感知带谱的估计值。

Decomposition to plane circuitry's pin, then aborative go along transmit and insulate inspect, eliminate circuitry malfunction. Aborative analyze to design circuitry, find out join circuitry of flap electric operation system with undercarriage control and beaconage's join circuitry existed circumfluence phenomena. Bring about when undercarriage control signal system electrify inspect, under flap system are not power supply, current from undercarriage signal breaker come by undercarriage signal box, to flap system's flap control box, flap electromagnetism clique form loop. Lead to the flap put down under flap system are not power supply. Design principium existing serious limitation, put forward ameliorate project.

通过对机上线路的插头进行分解，进行导通和绝缘检测，排除了机上线路故障；通过对设计线路进行分析，发现在襟翼电气操纵系统与起落架收放操纵及信号系统的交联线路存在回流现象，致使在起落架收放操纵及信号系统通电检查时，襟翼系统不供电的情况下，电流从起落架信号断路器经过起落架信号盒，到襟翼系统的襟翼控制盒、襟翼电磁阀形成回路，导致襟翼在不给电的情况下被放下，设计原理存在严重的缺陷，提出了改进方案。

The processor (1) is operable to generate the bias setting signal (3) and thereb y control the biasing circuit (6) to dynamically bias the sensor such that the signal characteristic of the output signal is maintained in a target range.

所述处理器(1)可操作用于产生偏置设置信号(3)，由此控制偏置电路(6)以动态地偏置所述传感器(10)，从而所述输出信号的所述信号特征被保持在相对小的目标范围内。

Abstraction :This paper analyzes the principle of Butterworth digital filter,discuss bilinear transformation method of filter design;record a piece of voice by Microsoft voice recorders, carry on its a time-domain analysis, spectral analysis;then design a specified Butterworth band-stop filter based on the theory of bilinear transform,analyze the filter by the tool named Fvtool;and filter the voice signal acquired by voice recorder.finally compare its characteristics of frequency domain and time domain,study the applications of Butterworth filter in digital signal processing ,in particular in signal denoising.

本文分析了巴特沃思数字滤波器的原理，探讨了双线性变换法设计滤波器的方法；用微软录音机采集一段语音，对其进行了时域分析，频谱分析；然后使用双线性变换法设计了一个的巴特沃思带阻滤波器，并且使用fvtool对设计的滤波器进行分析；然后利用该滤波器对采集的语音信号进行滤波。最后对比滤波前后的语音信号的时域和频域特性，研究了巴特沃思滤波器在信号处理尤其是信号滤波去噪方面的特性和应用。

The performances of noise jamming, pulse jamming, shift-frequency jamming, range pull off jamming on pulse compression radar signals are analyzed in this paper, which include the linear frequency modulation signal, the binary phase-coded signal and the compound signal of LFM and BC.

针对线性调频信号，二相编码信号以及由线性调频信号和二相编码信号构成的混合信号这几种脉冲压缩雷达信号，分析了噪声干扰、脉冲干扰、移频干扰和距离拖引干扰对它们的干扰性能，并给出了仿真模型和仿真结果

AC:ac coupling,block the DC signal of input signal only AC signal pass into attenuator.

AC：交流耦合，阻断输入信号的直流信号，只有交流信号通入衰减器。

It is avoidless that machines vibrate. Acute vibrating is the primary reason of destroying machines. So detecting vibrating signal may be used to find out machines working condition. At the same time the signal can be analyzed and blooey signal can be found out.

机器的振动是难免的，过大的振动又往往是机器破坏的主要原因，因此，我们通常利用检测设备检测振动信号来监视机械的工作状态，并对信号进行分析处理提取故障信号。

Related with the traffic status of our country, the content of this paper is combined with practical application. The paper studies how to investigate traffic status in urban signal intersection, By field observing and videography, this paper get the geometry formal、traffic control and traffic running state of Xingtan road and Wenhuiyuan north road intersection, which can be support database for model building and model testing. On currently basic design principles of signal phase, through deep study of signal phase and canalization design.

本文结合我国目前的交通状况，着力将所要研究的内容与实际应用结合起来，研究了城市信号交叉口交通调查的方法，通过实地观测和摄像的手段获得杏坛路与文慧园北路交叉路口的几何形式、交通管理和交通运行状况的信息，以此作为建立模型和验证模型的支持数据，并在现有信号相位设计基本原则的基础上，深入研究了混合通行情况下的相位方案及渠化设计。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。