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电视机视力保护灯的设计_毕业设计.doc29页
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本科毕业设计说明书
电视视力保护灯电路设计
院：机电工程学院
业：农业电气化与自动化
本文主要研究了一个简易的电视机视力保护灯的设计，主要有交流信号拾取电路、信号放大电路、整流倍压电路、光控电路、可控硅开关电路和12v电源等组成。在电视机打开时，背景照明灯自动点亮；关闭电视后，灯又能自动熄灭；而在白天看电视时，灯能自动封锁不会点亮，到了夜晚时又能自动打开。本系统简单实用，成本低廉，具有较高的实用价值。
关键词：信号拾取电路 信号放大电路 可控硅开关 光控电路 电源
This paper studies the design of a simple TV eye protection lamp, AC signal pickup circuit ,thesignal amplification circuit , rectifier voltage doubler circuit , light control circuit thyristorswitch circuit and 12v power . The TV is turned on , the background lights tu after the TV is turned off , the lights can automat watching TV during the day, the lights can automatically block does not light up , while automatically open to the night . The system is simple and practical, low cost, and has a high practical value .
Keywords: Signal pickup circuit
Signal amplification circuit
Light control circuit
设计构思 1
电视机视力保护灯的设计 3
单元电路的设计 3
电源电路 5
信号拾取电路 5
信号放大电路 6
信号整流电路 7
可控硅开关电路 8
光控电路 9
总的电路图 11
电视机视力保护灯的所用元器件简介 11
光敏电阻 11
原理结构 11
电容器的作用 12
电容器主要特性参数 13
二极管的工作原理 14
二极管的主要参数 14
正在加载中，请稍后...Blind source separation is try to recover the unknown independent signal source from a group of mixed observation data.
盲源分离是试图从给定的一组混合观察数据中恢复未知的独立信号源。
The ambiguity of separated components was firstly resolved and the independent signal components were extracted via blind source separation.
在无须了解信号混合系数的情况下，通过盲源分离法提取各独立分量信号，给出盲源分离结果不确定的解决方法。
For the detected signals, virtual input matrix in virtual coherence function was used to determine the number of independent signal sources and independence among them.
对于检测到的振动信号，用虚相干函数中的虚输入矩阵确定信号源独立个数，并以此判断信号源是否独立。
It is important to identify independent signal component indicating some fault behaviour and isolate the noise source.
因此，辨识表征各种状态变化的特征信号以及分离出噪声是非常重要的。
The proposed approach can both effectively separate independent signal and reduce computation. It is advantageous to the separation and recovery of real-time signal.
该方法既能有效分离独立源信号，又能节省运算时间，有利于实时信号分离恢复。
The research is focused on the calculation of intersection signal control elements, isolated independent signal priority control of streetcar, coordinated signal priority control of streetcar.
论文研究的重点为有轨电车交叉口信号控制参数确定方法、交叉口单点在线优先控制方法、离线协调优先控制方法。
From the perspective of extracting three independent fault signal characters:transient, steady and singularity, multi diagnosis criterions are developed in this paper.
本文从提取故障信息的三种独立特征：瞬态特征、稳态特征和突变特征的角度，开发了多种诊断判据。
It is composed of the TMS320VC5402 system and the interface with true radar display and the correlative circuit with PCI2040 chip. It is a comparatively independent radar signal generator system.
它以TMS320VC5402芯片最小系统为核心，加上与真雷达显示单元接口电路以及PCI2040桥芯片相关电路，形成了一个相对独立的雷达信号发生器。
Pulse pressure is the independent danger signal to forecast various related disease.
脉压是预测多种相关疾病的独立危险因子。
First, the traffic flow data of every observation point on the same road was turned into independent source signal through ICA method.
首先，通过独立成分分析得到同一条道路上各个观测点的交通流量的独立源信号；
By using an annular generator as the power supply for a fuze, not only the safety and reliability of the fuze is improved, but also an independent second signal for starting the arming is provided.
环形发电机作为引信电源不仅可提高引信的安全性和可靠性，而且还可为引信解除保险提供独立的第二环境激励源。
Results Pulse pressure is the independent danger signal to forecast coronary heart disease hypertrophic cardiomyopathy, heart-failure and intrinsic-hurt endothelial dysfunction.
结果：脉压是预测冠心病、心肌肥厚、心力衰竭、内皮功能损害的独立危险因子。
As it is independent on signal quantity and similar to classical KL transform in dimension reduction and features extraction, it has been widely used in pattern recognition.
由于它独立于信号量，并且在维数下降、特征提取方面都非常接近经典的KL变换算法，因此DCT变换已经适用于模式识别领域。
Since the synchronization error is independent of information signal, the chaotic modulation for large amplitude and fast varying information signals can be achieved.
由于同步误差与信息信号无关，从而实现了大幅度、快时变信息信号的混沌调制通信。
The location equation of PSD output signal independent of light intensity was derived.
导出PSD的输出信号与光强无关的位置方程。
Matching precision and acquisition probability are gained through the number of independent pixels, signal noise ratio and the statistic of correlation functions in the process of scene matching.
景象匹配精度与正确匹配概率是决定组合导航系统精度的重要指标。
ICA can be used to decompose the mixed signal into independent components, and the independence of the decomposed component is emphasized.
可以把混合信号分解为相互独立的成份，它强调分解出来的各分量之间的相互独立性。
The emulational results indicate: picking up sensor information and interferometer working point can be finished at the same time, and sensing signal is independent with working point.
仿真结果证明，遗传算法可以一次性提取传感信号和干涉仪工作点信息，并且传感信号的提取与工作点基本无关。
Stability is property of the system itself and is independent of the input signal.
稳定性是系统本身的属性，与输入信号无关。
Such amplifier makes it possible to maintain class F and inverse class F operation, respectively, of the first and second amplifier stages independent on the input signal.
这样的放大器能够独立于输入信号而分别保持第一和第二放大级的F类和逆F类操作。
The invention relates to a circuit structure for collecting the sensor signal of catalytic combustion type fuel gas, which comprises two independent single-end signal collecting circuits.
本发明涉及一种用于催化燃烧型可燃气体传感器信号采集的电路结构，其包括两个独立的单端信号采集电路；
The algorithm proposed in this paper is digital-audio-signal-independent, that is, the original audio signal is not required in the procedure of extracting watermark.
本文提出的水印嵌入算法是数字音频信号独立型的，在抽取水印时不需要原始的信号。
To accomplish this RCS weighting method, frequency agility is employed to get independent samples of target echo signal.
为实现这一方法，采用了频率捷变技术来获取目标回波信号的多个独立样本。
In the field of biomedical signal processing, independent component analysis(ICA) and principal component analysis(PCA) are two widely-used methods.
在生物医学信号处理领域，独立分量分析（PCA）和主分量分析（ICA）是两种广泛应用的方法。
Different from the Prediction Error Method, the new algorithm does not require the input signal to be independent and identical distribution, and even the input signal can be non-stationary.
与基于预测误差盲辨识方法不同，新的算法不要求输入信号独立同分布，甚至输入信号可以是非平稳的。
Reference source outputs a stable reference signal which is independent of power supply voltage, temperature and process.
其输出的基准信号稳定，与电源电压、温度以及工艺的变化无关。
The project is established in new development in signal processing-Independent Component Analysis(ICA), and applying ICA to pulse signal analysis and processing.
本课题还特别立足于信号处理技术的新发展——独立分量分析技术，对脉搏波信号进行了分析和处理。
The fading statistics is achieved by in-phase and quadrature modulation at the radio signal by two independent Gaussian noise signals.
该设备由软件和硬件组成，用两个独立的高斯噪声信号对无线电信号进行同相和正交调制，相加后得到瑞利衰落信号。
For switch cards, each channel's signal paths are independent of other channels.
对于开关卡，每一通道的信号通路与其它通路是独立的。
ECG signal and interferences are mutually independent. So in the paper, we apply independent component analysis in ECG signal processing.
利用心电信号及各种干扰信号之间相互统计独立的关系，采用独立分量分析对心电信号进行处理。
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感谢您的反馈，我们会尽快进行适当修改！The-clock-drive-signal-source 这是Simulink关于时钟驱动信号源的模型。希望对初学者有用。 matlab 259万源代码下载-
&文件名称: The-clock-drive-signal-source& & [
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&&开发工具: matlab
&&文件大小: 5 KB
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&详细说明：这是Simulink关于时钟驱动信号源的模型。希望对初学者有用。-This is the Simulink model about clock drive signal source. Hope useful for beginners.
文件列表(点击判断是否您需要的文件，如果是垃圾请在下面评价投诉):
&&时钟驱动信号源\clk_sources.mdl&&时钟驱动信号源
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&输入关键字，在本站259万海量源码库中尽情搜索：正交信号源,Orthogonal Signal Source,音标,读音,翻译,英文例句,英语词典
说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。
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1)&&Orthogonal Signal Source
正交信号源
Orthogonal Signal Source Based on FPGA used in Eddy S
基于FPGA的涡流检测正交信号源的设计方法
2)&&AD7008
Inte180C196KB正交信号源
3)&&Quadrature signal
4)&&orthogonal signals
Firstly a signal period is divided into eight equal segments based on polarity and amplitude of orthogonal signals.
根据正交信号的极性和幅值大小,将一个信号周期分成相等的8段。
In this paper,the bit error performance of the M-ary orthogonal signals in conjunction with transmit selection combined with receive maximum ratio combining over Nakagami fading channels.
该文研究了Nakagami信道上采用组合发送选择合并/接收最大比合并天线分集的M进制正交信号的误码性能。
By transmitting orthogonal signals,virtual subarrays are designed through filters,and the Subarrays Selection(SAS) algorithm is proposed.
采用发射阵列分布式布阵,接收阵列密布阵的收发分置系统,通过发射正交信号,在接收端经匹配滤波信号分选后构造虚拟子阵,提出了一种子阵优选算法,抑制目标闪烁,实现多目标超分辨。
5)&&orthogonal signal
Design of DDS orthogonal signal source based on CPLD
基于CPLD的DDS正交信号源的设计
Two channels of orthogonal signal generated by FPGA and 12 bit D/A,one is taken as the reference signal for multiplier I and also stir the system to detect the real part of the system response.
介绍了一种基于现场可编程门阵列(FPGA)及12位D/A产生的两路正交信号源,一路经跟随器输出激励待测系统,并作为模拟乘法器I的参考信号,检测系统响应的实分量;另一路正交信号作为模拟乘法器II的参考信号,检测系统响应的虚分量。
6)&&quadrature signals
To obtain quadrature signals with the rigid amplitude and phase balances, an optimum digital Hilbert transforming method using the minimax criterion is provided.
本文提出了一种采用最大误差最小化准则来优化数字希尔伯特(H ilbert)变换滤波器的方法,用以获取幅度和相位严格平衡的正交信号,并在此基础上给出了基于现场可编程门阵列(FPGA)的分布式DA算法的硬件实现结构。
There exists the imbalance of amplitude and phase between the pair of quadrature signals, which leads to the crosstalk between the forward and reverse blood flow information.
由于正交信号对之间通常存在幅度和相位的不平衡，从而导致了正、反血流信息的混淆，影响了平均频率、最大频率的估计和声谱图的正确显示。
补充资料：河外射电双源和多重源
&&&&　　河外射电展源中最典型的也是数量最多的(占40％)一种是双源。双源的最普遍的特征是，在相隔几万至两百万光年的距离上形成两块射电瓣(又称为子源)。证认出的光学对应体(星系或类星体)往往位于此两子源连线的中心。子源的远离光学母体的外边缘处射电亮度变化很陡，而且更接近最大值（此区域常是1″量级大小的致密成分），而向光学母体方向的则是亮度逐渐减弱的辐射延伸部分。最典型的代表是天鹅座A(见射电星系)。有时，光学母体两边是以两个强的外子源为主体的多个子源的组合结构，但仍然成为近似对称分布的所谓多重源。这种直线和对称排列的双源特征，在其所属的光学母体的致密射电区内有时能重现,就是说在不到双源的10-4～10-5的范围内,即在光学体小于0奬1（或几十光年）的区域内，仍然有成双的小致密源出现，而且里、外双源的连线基本上是一致的，例如，3C326、33C111、3C390.3、3C405等射电源。　　　　双源的普遍特性,如流量不变化,具有幂律谱 (Sv∝v-α，平均频谱指数α 约为0.75）, 有百分之几的线偏振而没有圆偏振,磁场为10-4～10-5高斯,射电光度强(1040～1045尔格/秒）, 能量高(1058～1081尔格)等等都与一般展源相同。对双源已进行了大量的观测统计,得出的结果是两个子源的流量密度相差不大，平均只差40％。两个子源与光学母体的距离也相差不大，双源中较亮的子源更靠近光学母体,直径较小,频谱较平。两个子源之间的距离约为子源直径的 2～4倍。在双源间距为 6～100万光年的范围内，不同射电源的子源大致以同样方式膨胀和相互分离, 形成了从中心向外抛射的圆锥体（圆锥角约20°～50°）。源的光度越大，双源之间的距离越大，抛射圆锥也就越窄。射电源主轴方向（两个子源的连线方向）与光学星系主轴方向成各种交角，表明二者没有相关性。同样，射电源主轴与偏振方位角之间也没有明显的相关性。以全部双源为例进行统计，没有发现射电光度与频谱指数或展源直径或光学亮度之间有什么关系。子源明亮头部的线偏振只有百分之几，而在延伸向光学母体的局部地区的线偏振则达到百分之几十，甚至高达百分之七十。　　　　双源和多重源的这些特性提出了三个必须解决的问题：①成双的对称性和一线排列问题；②在极其稀薄的介质中,子源抛射膨胀成形而不瓦解的约束机制问题;③巨额能量的来源和转换方式以及如何向子源进行输运的问题。目前流行的模型基本上有三种：等离子体团抛射及膨胀，大质量物体的一次抛射，连续喷射束。　　　　参考书目　　　A.G.Pacholczyk,Radio Galaxies,Pargamon Press, Oxford, 1977.　　
说明：补充资料仅用于学习参考，请勿用于其它任何用途。}