本文選題：CAN總線　切入點(diǎn)：維納濾波　出處：《中國(guó)礦業(yè)大學(xué)》2017年碩士論文

【摘要】：井下運(yùn)輸系統(tǒng)是煤礦生產(chǎn)的重要組成部分,其中運(yùn)輸控制系統(tǒng)和語(yǔ)音通話系統(tǒng)是其必不可少的環(huán)節(jié)。目前,運(yùn)輸控制系統(tǒng)和語(yǔ)音通話系統(tǒng)是兩個(gè)完全獨(dú)立的部分,需要在運(yùn)輸系統(tǒng)沿線分別安裝運(yùn)輸控制系統(tǒng)和語(yǔ)音通話裝置,使運(yùn)輸系統(tǒng)的結(jié)構(gòu)變得非常復(fù)雜,不利于后期的維護(hù)和檢修,同時(shí)也造成了資源的浪費(fèi)。為了改善上述問(wèn)題,本文以CAN總線技術(shù)、以太網(wǎng)技術(shù)和嵌入式技術(shù)等為基礎(chǔ),研發(fā)了一套礦井運(yùn)輸控制與語(yǔ)音通話相融合的系統(tǒng)。該系統(tǒng)不僅實(shí)現(xiàn)了語(yǔ)音通話功能而且能夠采集運(yùn)輸系統(tǒng)沿線的保護(hù)傳感器數(shù)據(jù),然后將采集的數(shù)據(jù)發(fā)送給控制中心,由控制中心來(lái)控制運(yùn)輸系統(tǒng)的運(yùn)行。本文研究的主要內(nèi)容包括系統(tǒng)整體硬件的設(shè)計(jì)、選型和安裝,例如電源模塊的設(shè)計(jì)、通信協(xié)議的選擇、顯示模塊的設(shè)計(jì)等,應(yīng)用了維納濾波算法來(lái)消除語(yǔ)音數(shù)據(jù)中夾雜的高斯白噪聲。針對(duì)CAN總線上傳輸不同優(yōu)先級(jí)信號(hào)的問(wèn)題,本文應(yīng)用排隊(duì)論構(gòu)建了區(qū)分優(yōu)先級(jí)的雙隊(duì)列M/M/1排隊(duì)系統(tǒng)的數(shù)學(xué)模型,詳細(xì)地分析影響數(shù)據(jù)在CAN總線上傳輸?shù)囊蛩?最后按照煤礦安全生產(chǎn)的標(biāo)準(zhǔn),完成了對(duì)整個(gè)系統(tǒng)的功能性測(cè)試。經(jīng)現(xiàn)場(chǎng)運(yùn)行表明,本系統(tǒng)能夠基本實(shí)現(xiàn)語(yǔ)音通話與運(yùn)輸控制的功能,簡(jiǎn)化了運(yùn)輸系統(tǒng)的結(jié)構(gòu)、節(jié)約了資源,具有一定的現(xiàn)實(shí)意義。
[Abstract]:Underground transportation system is an important part of coal mine production, among which transportation control system and voice communication system are essential links.At present, the transport control system and the voice communication system are two completely independent parts. It is necessary to install the transport control system and the voice communication device along the transportation system, respectively, which makes the structure of the transportation system very complex.Not conducive to later maintenance and repair, but also caused a waste of resources.In order to improve the above problems, based on CAN bus technology, Ethernet technology and embedded technology, a mine transportation control and voice communication system is developed in this paper.The system not only realizes the voice call function but also can collect the data of the protection sensor along the transportation system. Then the collected data is sent to the control center which controls the operation of the transportation system.The main contents of this paper include the design, selection and installation of the whole hardware of the system, such as the design of power supply module, the choice of communication protocol, the design of display module, etc.The Wiener filter algorithm is applied to eliminate the white noise of Gao Si in speech data.Aiming at the problem of transmitting different priority signals on CAN bus, this paper applies queuing theory to construct a mathematical model of two-queue M/M/1 queueing system with differentiated priorities, and analyzes in detail the factors affecting the transmission of data on CAN bus.Finally, according to the standard of coal mine safety production, the functional test of the whole system is completed.The field operation shows that the system can basically realize the functions of voice call and transportation control, simplify the structure of the transportation system, save resources, and have certain practical significance.
【學(xué)位授予單位】：中國(guó)礦業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TD634

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