發(fā)布時(shí)間：2018-02-25 06:19

  本文關(guān)鍵詞： 無線傳感器網(wǎng)絡(luò) 簇頭聚類 MAC自適應(yīng) 仿真　出處：《合肥工業(yè)大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：無線傳感器網(wǎng)絡(luò)技術(shù)被廣泛應(yīng)用在礦井環(huán)境監(jiān)控、信息傳遞和移動(dòng)定位等領(lǐng)域。作為當(dāng)前研究的熱點(diǎn)之一,組網(wǎng)問題研究是實(shí)現(xiàn)礦井無線傳感器網(wǎng)絡(luò)研究的前提與基礎(chǔ)；傳輸機(jī)制方法研究是實(shí)現(xiàn)節(jié)能、高效、可靠通信的必要手段。本文針對(duì)井下特殊環(huán)境,對(duì)無線傳感器網(wǎng)絡(luò)MAC層協(xié)議和路由層協(xié)議進(jìn)行研究,減少礦井網(wǎng)絡(luò)中移動(dòng)節(jié)點(diǎn)能耗,在時(shí)延性和可靠性方面有所改進(jìn)優(yōu)化。本文所做的工作如下：1、結(jié)合礦井無線傳感器網(wǎng)絡(luò)的環(huán)境特性,對(duì)礦井信號(hào)傳輸需求進(jìn)行分析研究。選用Mesh拓?fù)浣Y(jié)構(gòu)構(gòu)建適用于礦井安全監(jiān)測(cè)的網(wǎng)絡(luò)拓?fù)浼軜?gòu),選擇適合于礦井安全監(jiān)測(cè)的ZigBee協(xié)議作為無線傳感器網(wǎng)絡(luò)通信協(xié)議基礎(chǔ)。2、針對(duì)井下巷道的特殊環(huán)境,分析礦井下無線傳感器網(wǎng)絡(luò)自適應(yīng)路由組網(wǎng)的設(shè)計(jì)要求。結(jié)合井下移動(dòng)監(jiān)測(cè)節(jié)點(diǎn)的趨向性,在LEACH路由協(xié)議的基礎(chǔ)上給出一種改進(jìn)的適應(yīng)于礦井安全生產(chǎn)監(jiān)測(cè)的動(dòng)態(tài)聚類路由策略。該策略通過改進(jìn)簇頭選取原則、優(yōu)化簇的路由路徑和移動(dòng)監(jiān)測(cè)節(jié)點(diǎn)的聚類方案,一定程度上緩解了區(qū)域覆蓋,減少且均衡了系統(tǒng)能耗,延長網(wǎng)絡(luò)壽命。3、針對(duì)礦山井下特殊巷道容遲移動(dòng)無線傳感器網(wǎng)絡(luò)環(huán)境特征,在EQ-MAC協(xié)議基礎(chǔ)上設(shè)計(jì)一種改進(jìn)的預(yù)測(cè)接收節(jié)點(diǎn)發(fā)起傳輸時(shí)間的MAC協(xié)議,減少了發(fā)送節(jié)點(diǎn)空閑偵聽時(shí)間與能耗；引入改進(jìn)的CSMA/CA短報(bào)文自適應(yīng)握手機(jī)制,在盡量減少控制開銷的前提下,降低接收節(jié)點(diǎn)處數(shù)據(jù)包沖突,減少數(shù)據(jù)包傳輸失敗和重傳帶來的能量浪費(fèi)。4、搭建MATLAB仿真平臺(tái),模擬礦井巷道進(jìn)行仿真實(shí)驗(yàn)。仿真結(jié)果分析表明：改進(jìn)后的自適應(yīng)組網(wǎng)方案和MAC傳輸機(jī)制能有效的降低通信時(shí)延,提高通信可靠性,減少與均衡網(wǎng)絡(luò)能量損耗,更好的適應(yīng)礦井無線傳感器網(wǎng)絡(luò)移動(dòng)節(jié)點(diǎn)的組網(wǎng)與數(shù)據(jù)傳輸。
[Abstract]:Wireless sensor network technology is widely used in the field of mine environment monitoring, information transmission and mobile location. As one of the current research on network is the precondition and foundation of mine wireless sensor network; transmission mechanism research method is to achieve energy saving, efficient and reliable communication means necessary. This article in view of the special underground environment, the wireless sensor network MAC protocol and routing protocol of mobile node, reduce the energy consumption of mine network, improved optimization in ductility and reliability. This work is as follows: 1, combined with the environmental characteristics of the wireless sensor network, and analyze the mine signal transmission network topology with Mesh requirements. Topology construction for coal mine safety monitoring, choose suitable for coal mine safety monitoring ZigBee protocol as the wireless sensor For network communication protocol based on.2, according to the special environment of underground roadway design requirements of adaptive wireless sensor network routing network analysis. Combined with the trend of coal mine underground mobile monitoring node, are based on the LEACH routing protocol improved to adapt to the mine safety production monitoring and dynamic clustering routing strategy. This strategy by improving the cluster head selection principle, clustering scheme and mobile routing path monitoring node optimization cluster, to some extent alleviate the regional coverage, reduce and balance the energy consumption of the system, and prolong the network lifetime for mine roadway.3, Yamarai Shita special delay tolerant mobile environment characteristic of wireless sensor network, design an improved prediction receiver initiated transmission time the MAC protocol based on EQ-MAC protocol, the sending node reduces the idle listening time and energy; the introduction of CSMA/CA short message improved adaptive grip Mobile phone system, to reduce the control overhead, reduce the receiving node packet conflict, reduce packet transmission failure and retransmission of the energy from waste.4, builds the MATLAB simulation platform, the simulation of the mine roadway. The simulation results show that the improved scheme and adaptive MAC transmission mechanism can effectively reduce communication delay, improve communication reliability, reduce and balance the network energy consumption, better adapt to the network and data transmission of mobile nodes in wireless sensor networks in mine.

【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD65;TN929.5;TP212.9

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