發(fā)布時(shí)間：2018-02-24 15:00

  本文關(guān)鍵詞： PTN智能網(wǎng)管系統(tǒng) 頻率同步 時(shí)間同步 同步以太網(wǎng) IEEE1588V2　出處：《武漢理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：伴隨移動(dòng)互聯(lián)網(wǎng)與IP多媒體子系統(tǒng)等業(yè)務(wù)的蓬勃發(fā)展，大量的視頻和數(shù)據(jù)IP化業(yè)務(wù)不斷涌現(xiàn)，通信網(wǎng)絡(luò)已經(jīng)從以語(yǔ)音業(yè)務(wù)為主的SDH網(wǎng)絡(luò)逐步轉(zhuǎn)變?yōu)橐訧P業(yè)務(wù)為主的PTN（Packet Transport Network，分組傳輸網(wǎng)絡(luò)）。為保證PTN網(wǎng)絡(luò)中業(yè)務(wù)的高效無(wú)誤傳輸，同步技術(shù)成為關(guān)鍵技術(shù)之一。 論文介紹了課題的研究背景與同步技術(shù)的發(fā)展歷程，其中同步分為頻率同步和時(shí)間同步。為滿足通信網(wǎng)絡(luò)對(duì)時(shí)間同步的高精度要求，PTN智能網(wǎng)絡(luò)管理系統(tǒng)采用同步以太網(wǎng)技術(shù)以及IEEE1588V2同步技術(shù)實(shí)現(xiàn)頻率和時(shí)間的同步。論文完成的主要工作有以下幾個(gè)方面： 1.論文對(duì)PTN智能網(wǎng)絡(luò)管理系統(tǒng)中頻率同步與時(shí)間同步的需求進(jìn)行分析，同時(shí)還對(duì)展現(xiàn)網(wǎng)絡(luò)中同步狀態(tài)的時(shí)間時(shí)鐘拓?fù)涞男枨筮M(jìn)行了分析。 2.論文研究了PTN網(wǎng)絡(luò)中的同步以太網(wǎng)技術(shù)，對(duì)實(shí)現(xiàn)頻率同步的SSM算法進(jìn)行了分析，并對(duì)PTN網(wǎng)絡(luò)管理系統(tǒng)中的頻率同步進(jìn)行了設(shè)計(jì)與實(shí)現(xiàn)。 3.論文對(duì)PTN網(wǎng)絡(luò)中的IEEE1588V2同步技術(shù)進(jìn)行了研究，重點(diǎn)對(duì)實(shí)現(xiàn)時(shí)間同步的LCS算法進(jìn)行了分析，，設(shè)計(jì)并實(shí)現(xiàn)了PTN智能網(wǎng)絡(luò)管理系統(tǒng)中基于PTP的時(shí)間同步。 4.為了將PTN網(wǎng)絡(luò)中的頻率和時(shí)鐘的同步狀態(tài)信息以拓?fù)鋱D的形式展現(xiàn)，論文實(shí)現(xiàn)了時(shí)間時(shí)鐘拓?fù)淠K。為提高時(shí)鐘拓?fù)涞募虞d效率，在讀取時(shí)間時(shí)鐘信息時(shí)采用用多線程技術(shù)，通過(guò)對(duì)比改進(jìn)前后的測(cè)試數(shù)據(jù)結(jié)果來(lái)進(jìn)一步驗(yàn)證改進(jìn)方法的有效性。 根據(jù)項(xiàng)目的實(shí)際情況和需求本系統(tǒng)采用了三層C/S架構(gòu)，通過(guò)使用遠(yuǎn)程方法調(diào)用、Java代碼成功實(shí)現(xiàn)了PTN智能網(wǎng)絡(luò)管理系統(tǒng)中的頻率同步和時(shí)間同步的功能以及時(shí)間時(shí)鐘拓?fù)洹?br/>[Abstract]:With the rapid development of mobile Internet and IP multimedia subsystem, a large number of video and data IP services continue to emerge. The communication network has gradually changed from the SDH network based on voice service to the PTN(Packet Transport network based on IP service. In order to ensure the efficient and correct transmission of services in PTN network, synchronization technology has become one of the key technologies. This paper introduces the research background and the development of synchronization technology. The synchronization is divided into frequency synchronization and time synchronization. In order to meet the high precision requirement of time synchronization in communication network, synchronous Ethernet technology and IEEE1588V2 synchronization technology are used to realize frequency and time synchronization in the intelligent network management system. The main work accomplished in this paper is as follows:. 1. The requirements of frequency synchronization and time synchronization in PTN intelligent network management system are analyzed. 2. This paper studies the synchronous Ethernet technology in PTN network, analyzes the SSM algorithm to realize the frequency synchronization, and designs and implements the frequency synchronization in the PTN network management system. 3. In this paper, the IEEE1588V2 synchronization technology in PTN network is studied, and the LCS algorithm to realize time synchronization is analyzed, and the time synchronization based on PTP in PTN intelligent network management system is designed and implemented. 4. In order to display the synchronous state information of frequency and clock in PTN network in the form of topology, this paper implements the time clock topology module. In order to improve the loading efficiency of clock topology, multithread technology is used to read the time clock information. The effectiveness of the improved method is further verified by comparing the test data before and after the improvement. According to the actual situation and requirements of the project, the system adopts a three-layer C / S architecture. The functions of frequency synchronization and time synchronization and time clock topology in PTN intelligent network management system are successfully realized by using remote method to call Java code.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP393.07

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