【摘要】：隨著信息技術(shù)的高速發(fā)展,光纖通信以其傳輸頻帶寬、通信容量大等優(yōu)點(diǎn)成為現(xiàn)代通信的重要組成部分。光纜作為光纖通信的傳輸媒介,它的指標(biāo)影響著光纖通信的質(zhì)量,光纜質(zhì)量的檢測(cè)是判定產(chǎn)品能否入網(wǎng)的重要環(huán)節(jié)。本課題設(shè)計(jì)了一種基于嵌入式的無(wú)源激振信息處理與傳輸系統(tǒng)。該系統(tǒng)可以配合其它光纜檢測(cè)設(shè)備,通過(guò)對(duì)被控設(shè)備運(yùn)行過(guò)程中振動(dòng)信息的采集,采用PID算法處理反饋信息,在保證復(fù)雜環(huán)境下信息可靠傳輸?shù)耐瑫r(shí),實(shí)現(xiàn)測(cè)試信號(hào)的自適應(yīng)調(diào)整。通過(guò)信息網(wǎng)絡(luò)平臺(tái),實(shí)現(xiàn)對(duì)設(shè)備和環(huán)境數(shù)據(jù)的有效存儲(chǔ)和管理。嵌入式系統(tǒng)由信號(hào)發(fā)生模塊、信息處理模塊和信息反饋模塊組成�；贑8051F340的信息處理模塊負(fù)責(zé)整個(gè)系統(tǒng)的控制與反饋信息的處理。以AD9833和MAX543為重要組成部分的信號(hào)發(fā)生模塊能夠按要求產(chǎn)生規(guī)定參數(shù)的波形,用以控制檢測(cè)設(shè)備的運(yùn)行。信息反饋模塊由運(yùn)放LF353N、AD637和A]D7705等部分組成。激振傳感器采集的信息經(jīng)反饋模塊處理后傳至信息處理模塊。信息處理模塊通過(guò)PID控制算法對(duì)信息進(jìn)行處理,并根據(jù)結(jié)果重新調(diào)整信號(hào)發(fā)生模塊的輸出信號(hào)波形幅度,直至設(shè)備運(yùn)行于預(yù)期狀態(tài)。調(diào)節(jié)過(guò)程中,信息處理模塊、信號(hào)發(fā)生模塊、信息反饋模塊和被控設(shè)備構(gòu)成了閉環(huán)系統(tǒng),實(shí)現(xiàn)了檢測(cè)過(guò)程的自動(dòng)化控制。信息網(wǎng)絡(luò)平臺(tái)是在LAMP環(huán)境下搭建的提供信息管理與存儲(chǔ)的平臺(tái)系統(tǒng)。通過(guò)采用基于Python的Web框架Django完成了平臺(tái)的設(shè)計(jì)與實(shí)現(xiàn)。平臺(tái)能夠?qū)⒐饫|檢測(cè)過(guò)程中的各種數(shù)據(jù)參數(shù)存儲(chǔ)至服務(wù)器端,通過(guò)Web技術(shù)提供良好的數(shù)據(jù)展示方式便于信息的瀏覽與使用。對(duì)用戶權(quán)限的劃分實(shí)現(xiàn)了數(shù)據(jù)的安全訪問(wèn)控制。網(wǎng)絡(luò)平臺(tái)作為嵌入式系統(tǒng)的支持部分,與嵌入式系統(tǒng)協(xié)同運(yùn)行,有利于光纜檢測(cè)過(guò)程的監(jiān)控與維護(hù)。
[Abstract]:With the rapid development of information technology, optical fiber communication has become an important part of modern communication because of its advantages of transmission bandwidth and large communication capacity. As the transmission medium of optical fiber communication, the quality of optical fiber communication is affected by its index. The quality detection of optical fiber cable is an important link to determine whether the product can be put into the network. In this paper, a passive excitation information processing and transmission system based on embedded system is designed. The system can cooperate with other optical cable detection equipment, by collecting vibration information during the operation of the controlled equipment, and using PID algorithm to process feedback information, which can ensure the reliable transmission of information in complex environment at the same time. The adaptive adjustment of test signal is realized. Through the information network platform, the effective storage and management of equipment and environmental data are realized. The embedded system consists of signal generation module, information processing module and information feedback module. The information processing module based on C8051F340 is responsible for the control of the whole system and the processing of feedback information. The signal generation module which takes AD9833 and MAX543 as important components can generate the waveform of specified parameters as required to control the operation of the detection equipment. The information feedback module is composed of LF353N,AD637 and A] D 7705. The information collected by the excitation sensor is processed by the feedback module and transmitted to the information processing module. The information processing module processes the information through the PID control algorithm and adjusts the amplitude of the output signal waveform of the signal generation module according to the result until the equipment runs in the expected state. In the adjustment process, the information processing module, the signal generation module, the information feedback module and the controlled equipment constitute the closed-loop system, which realizes the automatic control of the detection process. Information network platform is a platform system which provides information management and storage under LAMP environment. The design and implementation of the platform is accomplished by using Web framework Django based on Python. The platform can store all kinds of data parameters in the process of optical cable detection to the server, and provide a good way of data display through Web technology to facilitate the browsing and using of information. The partition of user rights realizes the secure access control of data. As the supporting part of the embedded system, the network platform works with the embedded system, which is beneficial to the monitoring and maintenance of the optical cable detection process.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TP311.52

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