电力线

User can plug and play. The thesis introduces the state of distribution automation.

论文首先介绍了配网自动化技术在国内外的发展现状，讨论了电力线扩频通信技术及原理，扩频码序列相关性和扩频通信的同步问题。

In order to conquer the threshold method's shortages,the threshold function is further improved through the simulation of channel's noise based on the translation invariant wavelet,which makes the threshold...

为了克服阈值法的不足，在平移不变量小波阈值去噪法的基础上，通过仿真低压电力线信道噪声，对阈值函数进一步改进，使阈值的变化与噪声的小波变换随尺度的变化特性相一致。

The common capacitance sensor is composed of two-electrode planks which vary in shape and can be fixed in different plane of space. The driving and inductive electrode pole placed in the same plane of the uniplanar scattering-field capacitive sensor. The electric field presents scattering. As the shape of power line in the electric fields is like semicircular arc or ellipse, there is some limits in the measurement depth of uniplanar scattering-field capacitive sensor, and its penetration depth is equal to 2/3 of center distance of adjacent driving and irritable electrode pole.

电容传感器是由两极板组成，极板的形状有多种，两极板一般位于不同的空间平面；而同面散射场电容传感器的驱动电极和感应电极位于同一平面，其电场呈散射状，电场的电力线近似半圆弧形或椭圆形，因而其测量穿透深度是有一定限制的，是相邻驱动电极和感应电极中心距的2／3。

The system of video monitor for the power line carrier communication was designed.

设计了基于ARM9的电力线载波通信视频监控系统，重点介绍了系统的实现过程。

The wave trap and filter device is used for [2 改为to] the detection and filter devices in power line carrier communication.

阻波器滤波器测试仪就是在现场对电力线载波通信中的阻波器和滤波器进行检测的装置。

Chapter seven discuss the PLC communication technique in detail. And then described the PLC communication technique based on CEBus and X-10 respectively.

第七章在对电力载波通讯技术加以剖析的基础上，分别对基于CEBus和基于X-10协议的电力线载波通讯技术进行了详细的论述。

CEBus compatible power line carrier IC P300 was applied and a simple point -to-point power line communication system was implemented both in software and hardware.

采用符合CEBus标准的电力线通信集成电路SSC P300，从软硬件两方面设计出一套简单的点对点的电力通信系统。

The system based on the CEBUS main line and using the wide frequency power line carrier communication technology to realize the multi- spots scene automatic monitor control, has realized the fire scene common control and the automatic fire fighting.

介绍了一种基于CEBUS总线的火灾预警系统，该系统基于CEBUS总线，并采用扩频电力线载波通信技术，实现了对多点现场的自动监测控制，实现了对火灾现场的集中控制和自动灭火。

Second, a house network which based on CEBus in the low power line correspondence is built with the drive module made by interface chip of SSC P300 based on the spread spectrum technique. House network is connected to the district Ethernet to communicate with the district manage center by the embedded relay module.

其次，在研究CEBus的基础上，选用符合此协议的电力线载波芯片SSC P300作为通信接口芯片设计出驱动模块并组成家庭内部网络；家庭内部网络通过嵌入式中继模块和小区以太网实现与小区管理中心的通信。

The resulting CEbus standard, which the industry adopted in 1994 as EIA-600, targeted remote control, remote instrumentation, security systems, energy management, and entertainment coordination with other wiring that carried the entertainment content.

也正是因为噪音，电力线网络技术或者限制信号带宽，比如X10、SmartLab以及通用电力总线等标准和组织所做的尝试，或者采用复杂昂贵的噪音和误差消除技术，比如HomePlug AV标准，这些方案带来的后果就是没法大范围推广。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。