發(fā)布時(shí)間：2019-04-03 11:02

【摘要】：針對(duì)煤礦井下監(jiān)測(cè)環(huán)境復(fù)雜,無(wú)線信道多徑衰落嚴(yán)重及傳感器網(wǎng)絡(luò)中節(jié)點(diǎn)能量受限等問(wèn)題,為了保證煤礦安全生產(chǎn)的順利進(jìn)行,需要更加全面、準(zhǔn)確的獲取井下環(huán)境監(jiān)測(cè)信息。為此,本文基于MB-OFDM-UWB構(gòu)建了煤礦井下無(wú)線多媒體傳感器網(wǎng)絡(luò),對(duì)其中的若干關(guān)鍵技術(shù)進(jìn)行了研究。主要研究?jī)?nèi)容和成果如下:(1)針對(duì)煤礦井下巷道帶狀受限空間的特性以及多媒體信息采集的需求,基于MB-OFDM-UWB構(gòu)建了煤礦井下異構(gòu)無(wú)線多媒體傳感器網(wǎng)絡(luò)系統(tǒng),設(shè)計(jì)了網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)與工作方式,使網(wǎng)絡(luò)可以有效工作。(2)針對(duì)煤礦井下狹長(zhǎng)受限空間中無(wú)線信道多徑衰落嚴(yán)重,一些位置的節(jié)點(diǎn)到基站的信道條件較差的問(wèn)題,提出了一種煤礦井下異構(gòu)無(wú)線多媒體傳感器網(wǎng)絡(luò)MB-OFDM-UWB時(shí)頻編碼協(xié)作傳輸方案。該方案實(shí)現(xiàn)了信道狀況較好與較差節(jié)點(diǎn)間的協(xié)作。仿真結(jié)果表明,采用所提出的煤礦井下MB-OFDM-UWB時(shí)頻編碼協(xié)作傳輸方案,顯著提高了網(wǎng)絡(luò)中信道狀況較差節(jié)點(diǎn)的誤碼率性能。(3)針對(duì)煤礦井下巷道狹長(zhǎng)結(jié)構(gòu)的特點(diǎn),提出了一種基于虛擬網(wǎng)格劃分的煤礦井下異構(gòu)無(wú)線多媒體傳感器網(wǎng)絡(luò)PREVG分簇算法。該算法依據(jù)網(wǎng)絡(luò)中節(jié)點(diǎn)的通信半徑對(duì)節(jié)點(diǎn)劃分虛擬網(wǎng)格進(jìn)行分簇管理,并在選取上層簇頭節(jié)點(diǎn)過(guò)程中考量節(jié)點(diǎn)的剩余能量及所處位置信息。仿真結(jié)果表明,采用所提出的煤礦井下PREVG分簇算法能夠有效提高網(wǎng)絡(luò)中數(shù)據(jù)的傳輸效率,均衡網(wǎng)絡(luò)中節(jié)點(diǎn)的能量消耗,延長(zhǎng)網(wǎng)絡(luò)的生命周期。(4)針對(duì)煤礦井下傳感器網(wǎng)絡(luò)節(jié)點(diǎn)能量受限,上層簇頭節(jié)點(diǎn)與匯聚節(jié)點(diǎn)一般距離較遠(yuǎn),向匯聚節(jié)點(diǎn)傳送數(shù)據(jù)耗能大的問(wèn)題,結(jié)合PREVG分簇算法,提出了一種基于蟻群的煤礦井下異構(gòu)無(wú)線多媒體傳感器網(wǎng)絡(luò)EDACA路由算法。該算法對(duì)上層簇頭節(jié)點(diǎn)引入備選簇頭節(jié)點(diǎn),并在簇頭節(jié)點(diǎn)至匯聚節(jié)點(diǎn)的路由選擇過(guò)程中考量各簇頭節(jié)點(diǎn)的剩余能量及節(jié)點(diǎn)間距離信息。仿真結(jié)果表明,采用所提出的煤礦井下EDACA路由算法能夠明顯減少網(wǎng)絡(luò)中能量耗盡的節(jié)點(diǎn)的數(shù)目,保證數(shù)據(jù)的長(zhǎng)效傳輸,延長(zhǎng)網(wǎng)絡(luò)的生命周期,提升網(wǎng)絡(luò)的監(jiān)測(cè)性能。以上結(jié)果表明,在普通節(jié)點(diǎn)數(shù)據(jù)傳輸過(guò)程中采用所提出的MB-OFDM-UWB時(shí)頻編碼協(xié)作傳輸方案、在普通節(jié)點(diǎn)成簇管理過(guò)程中采用所提出的PREVG分簇算法以及在簇頭節(jié)點(diǎn)與匯聚節(jié)點(diǎn)通信路徑選取過(guò)程中采用所提出的EDACA路由算法,能夠有效保證煤礦井下異構(gòu)無(wú)線多媒體傳感器網(wǎng)絡(luò)數(shù)據(jù)傳輸?shù)目煽啃耘c節(jié)點(diǎn)能量有效性。
[Abstract]:In order to ensure the smooth operation of the coal mine safety production, it is necessary to obtain the downhole environmental monitoring information more comprehensively and accurately for the problems of complicated monitoring environment of the underground coal mine, serious multi-path fading of the wireless channel and the limitation of the energy of the nodes in the sensor network. In this paper, the wireless multi-media sensor network in coal mine is constructed based on the MB-OFDM-UWB, and some key technologies are studied in this paper. The main research contents and achievements are as follows: (1) According to the characteristics of the belt-shaped restricted space of the coal mine and the demand of the multimedia information acquisition, the network system of the heterogeneous wireless multimedia sensor in the coal mine is constructed based on the MB-OFDM-UWB, and the network topology and the working mode are designed. So that the network can work effectively. And (2) aiming at the problem that the multipath fading of the wireless channel in the long and narrow confined space of the coal mine is serious, and the channel conditions of the nodes in some positions to the base station are poor, a network MB-OFDM-UWB time-frequency coding cooperative transmission scheme of the underground heterogeneous wireless multimedia sensor network of the coal mine is proposed. The scheme realizes the cooperation between the better channel condition and the poorer node. The simulation results show that the proposed coal mine downhole MB-OFDM-UWB time-frequency coding cooperative transmission scheme significantly improves the bit error rate performance of the poor node in the network. (3) According to the characteristics of the long and narrow structure of the underground tunnel in the coal mine, a network PREVG clustering algorithm of the underground heterogeneous wireless multimedia sensor network based on the virtual grid division is proposed. According to the communication radius of the nodes in the network, the nodes are divided into a virtual grid for clustering management, and the residual energy and the position information of the nodes are considered in the process of selecting the upper layer cluster head node. The simulation results show that the proposed method can effectively improve the transmission efficiency of the data in the network, balance the energy consumption of the nodes in the network, and prolong the life cycle of the network. (4) aiming at the energy limitation of the network node of the underground sensor network of the coal mine, the upper layer cluster head node is far from the common distance of the aggregation node, the problem that the energy consumption is large is transmitted to the aggregation node, and the method is combined with the PREVG clustering algorithm, This paper presents an ant colony-based network EDACA routing algorithm for the underground heterogeneous wireless multimedia sensor network. In that method, an alternative cluster head node is introduce to the upper layer cluster head node, and the residual energy and the inter-node distance information of each cluster head node are taken into account in the route selection process of the cluster head node to the aggregation node. The simulation results show that the proposed underground EDACA routing algorithm can significantly reduce the number of nodes in the network, ensure the long-term transmission of data, prolong the life cycle of the network and improve the monitoring performance of the network. the above results show that the proposed MB-OFDM-UWB time-frequency coding cooperative transmission scheme is adopted in the data transmission process of the common node, in the process of cluster management of the common node, the proposed PREVG clustering algorithm and the proposed EDACA routing algorithm are adopted in the selection process of the cluster head node and the aggregation node communication path, The reliability of the data transmission of the heterogeneous wireless multimedia sensor network in the coal mine and the energy efficiency of the node can be effectively ensured.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TP212.9;TN919.8

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊維;張琳?qǐng)@;許晶晶;邵小桃;;礦井巷道協(xié)作MC-CDMA功率控制與擴(kuò)容[J];華中科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2016年05期

2 張琳?qǐng)@;楊維;;礦井巷道時(shí)頻編碼協(xié)作MC-CDMA信道估計(jì)[J];煤炭學(xué)報(bào);2015年02期

3 張亞珂;徐偉強(qiáng);史清江;俞晴里;汪亞明;;無(wú)線傳感網(wǎng)絡(luò)中擁塞控制與路由的跨層設(shè)計(jì):分布式牛頓法[J];自動(dòng)化學(xué)報(bào);2014年10期

4 張琳?qǐng)@;楊維;;礦井巷道時(shí)頻編碼協(xié)作MC-CDMA伙伴選擇與子載波分配[J];煤炭學(xué)報(bào);2014年10期

5 朱永紅;丁恩杰;;異構(gòu)WMSN的礦井救援系統(tǒng)節(jié)點(diǎn)部署方案研究[J];煤炭工程;2014年07期

6 張琳?qǐng)@;楊維;;礦井巷道時(shí)頻編碼協(xié)作MC-CDMA無(wú)線傳輸[J];煤炭學(xué)報(bào);2014年06期

7 丁男;譚國(guó)真;由笛;張偉;;一種基于WSN時(shí)變性與節(jié)點(diǎn)剩余能量均衡的機(jī)會(huì)路由算法[J];電子與信息學(xué)報(bào);2013年03期

8 陳曉娟;王卓;吳潔;;一種基于LEACH的改進(jìn)WSN路由算法[J];傳感技術(shù)學(xué)報(bào);2013年01期

9 王小明;盧俊嶺;李英姝;郝克剛;;模糊隨機(jī)環(huán)境下的無(wú)線傳感器網(wǎng)絡(luò)多約束多路徑路由[J];計(jì)算機(jī)學(xué)報(bào);2011年05期

10 衛(wèi)琪;馬禮;;無(wú)線傳感器網(wǎng)絡(luò)節(jié)能路由研究[J];工業(yè)控制計(jì)算機(jī);2011年02期

相關(guān)碩士學(xué)位論文 前5條

1 魏雨博;無(wú)線網(wǎng)絡(luò)協(xié)作通信中繼選擇問(wèn)題研究[D];北京交通大學(xué);2012年

2 王珊珊;LEACH路由協(xié)議的改進(jìn)與基于礦井環(huán)境下的無(wú)線傳感器網(wǎng)絡(luò)路由協(xié)議的研究[D];南京理工大學(xué);2011年

3 劉彬;煤礦瓦斯監(jiān)測(cè)網(wǎng)格型無(wú)線傳感器網(wǎng)絡(luò)的實(shí)現(xiàn)[D];北京交通大學(xué);2008年

4 費(fèi)杰能;基于UWB的自組織無(wú)線傳感器網(wǎng)絡(luò)的設(shè)計(jì)研究[D];北京郵電大學(xué);2006年

5 宋淑琴;基于UWB的傳感器網(wǎng)絡(luò)媒體接入控制研究[D];東南大學(xué);2006年

，

本文編號(hào)：2453156