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

【摘要】：井下運輸系統(tǒng)是煤礦生產的重要組成部分,其中運輸控制系統(tǒng)和語音通話系統(tǒng)是其必不可少的環(huán)節(jié)。目前,運輸控制系統(tǒng)和語音通話系統(tǒng)是兩個完全獨立的部分,需要在運輸系統(tǒng)沿線分別安裝運輸控制系統(tǒng)和語音通話裝置,使運輸系統(tǒng)的結構變得非常復雜,不利于后期的維護和檢修,同時也造成了資源的浪費。為了改善上述問題,本文以CAN總線技術、以太網技術和嵌入式技術等為基礎,研發(fā)了一套礦井運輸控制與語音通話相融合的系統(tǒng)。該系統(tǒng)不僅實現(xiàn)了語音通話功能而且能夠采集運輸系統(tǒng)沿線的保護傳感器數據,然后將采集的數據發(fā)送給控制中心,由控制中心來控制運輸系統(tǒng)的運行。本文研究的主要內容包括系統(tǒng)整體硬件的設計、選型和安裝,例如電源模塊的設計、通信協(xié)議的選擇、顯示模塊的設計等,應用了維納濾波算法來消除語音數據中夾雜的高斯白噪聲。針對CAN總線上傳輸不同優(yōu)先級信號的問題,本文應用排隊論構建了區(qū)分優(yōu)先級的雙隊列M/M/1排隊系統(tǒng)的數學模型,詳細地分析影響數據在CAN總線上傳輸的因素,最后按照煤礦安全生產的標準,完成了對整個系統(tǒng)的功能性測試。經現(xiàn)場運行表明,本系統(tǒng)能夠基本實現(xiàn)語音通話與運輸控制的功能,簡化了運輸系統(tǒng)的結構、節(jié)約了資源,具有一定的現(xiàn)實意義。
[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.
【學位授予單位】：中國礦業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD634

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本文編號：1702844