低壓電力線載波通信模塊設(shè)計(jì)

通信工程論文編號(hào):TX372  論文字?jǐn)?shù):15460,頁數(shù):68

目錄

摘要 I
ABSTRACT II
第1章 緒論  1
 1.1 背景 1
 1.1.1 電力線載波通信的發(fā)展過程和現(xiàn)狀 1
 1.1.2 我國電力通信存在的問題 2
 1.1.3 單片機(jī)技術(shù)的發(fā)展 2
 1.1.4 電源的發(fā)展 3
 1.2 課題主要研究?jī)?nèi)容和意義 3
第2章 低壓載波通信模塊的原理 6
 2.1 通信過程分析 6
 2.2 電路分析 7
 2.2.1  PL3201芯片介紹 7
 2.2.2 外圍電路分析 9
第3章 系統(tǒng)軟件設(shè)計(jì) 17
 3.1 需求分析 17
 3.2 軟件流程設(shè)計(jì) 18
 3.3 重要程序分析 21
第4章 系統(tǒng)測(cè)試分析 30
第5章 結(jié)論 33
致謝 35
參考文獻(xiàn) 36
附錄1 DEMO 板與PC 機(jī)的通訊協(xié)議 37
附錄2 DEMO板原理圖 39
附錄3 DEMO板PCB圖及3D效果圖 40
附錄4 串口中斷測(cè)試程序 42
附錄5 具體程序 46

摘要

 電力載波通信技術(shù)運(yùn)用廣泛，其中低壓載波通信設(shè)備可以使供電部門及時(shí)掌握用戶用電情況，監(jiān)測(cè)有無竊電行為；根據(jù)需要進(jìn)行供電控制；通過遠(yuǎn)程抄表節(jié)省抄表的人力物力。在未來的家用電器自動(dòng)化控制等領(lǐng)域的應(yīng)用范圍及前景將會(huì)十分廣闊。
 低壓電力線載波抄表系統(tǒng)是集電表數(shù)據(jù)采集、載波傳輸、數(shù)據(jù)存儲(chǔ)、數(shù)據(jù)通信、數(shù)據(jù)處理及斷電控制等功能于一體的自動(dòng)化系統(tǒng)[1]。
 本論文針對(duì)的是低壓電力線載波抄表系統(tǒng)中的載波通信模塊的設(shè)計(jì)制作。模塊由電源部分，RS232接口部分，載波接口部分，單片機(jī)等接口電路部分組成[2]。
 通過北京福星曉程公司的單片機(jī)芯片（PL3201）完成數(shù)據(jù)在通信線路（電力線）的擴(kuò)頻發(fā)射，擴(kuò)頻接收；模塊接收上位機(jī)串口下發(fā)的232數(shù)據(jù)，完成串口數(shù)據(jù)校驗(yàn)和解析處理，實(shí)現(xiàn)電力線載波數(shù)據(jù)的轉(zhuǎn)發(fā)，還可以接收載波數(shù)據(jù)，處理后返回給上位機(jī)，由計(jì)算機(jī)對(duì)操作結(jié)果，信道數(shù)據(jù)進(jìn)行檢測(cè)顯示[1]。

關(guān)鍵詞：電力線載波，單片機(jī)，電源                               
  
ABSTRACT
 
 Power line carrier communication technology is used widely. Low-voltage carrier communication equipment which will help the electricity sector to make sure of the user’s electricity consumption in time,  monitor whether the user have the actions of stealing electricity ; According to the need for power supply control; through remote meter-reading to save the human and material resources. In the field of automatic household appliances control of the application of and prospects will be very broad.
 Low-voltage power line carrier meter reading system is set meter data collection, transmission carrier, data storage, data communications, data processing and power control functions in the integrated automation system.
 This paper is aimed at low-voltage power line carrier meter reading system in the carrier communication module is designed. The module is composed of power part,the RS232 interface part, the carrier interface part ,the single-chip microcomputer(SCM) interface part, and other interface circuit components.
  Through the company of Fuxing-Xiaocheng’s single-chip microcomputer chip (PL3201) in the completion of data communications circuits (power line) launched the spread spectrum, spread spectrum receiver; The module receives the PC serial port’s the 232 data, completes serial data validation and analytical processing, and comes true the power line carrier of data transmittion, can also receive data carrier, after the return to the PC, the operating results from the computer, the data channel Test shows.
 
 Keywords: Power Line Carrier, single-chip microcomputer, power