本文選題：無(wú)線可充電傳感器網(wǎng)絡(luò) + 移動(dòng)充電器�。� 參考：《南京郵電大學(xué)》2017年碩士論文

【摘要】：無(wú)線傳感器網(wǎng)絡(luò)最大研究瓶頸是網(wǎng)絡(luò)總能量受限的問(wèn)題。隨著微電子集成電路、無(wú)線能量傳輸技術(shù)的飛速發(fā)展,可充電式的無(wú)線傳感器網(wǎng)絡(luò)將傳統(tǒng)使用一次性電池的傳感網(wǎng)取而代之。采用移動(dòng)充電設(shè)備為傳感器網(wǎng)絡(luò)提供可持續(xù)工作的能量,成為當(dāng)前新興的研究熱點(diǎn)和發(fā)展趨勢(shì)。本文首先研究了在不考慮數(shù)據(jù)收集情況下單個(gè)充電器的移動(dòng)充電方案提出了一種區(qū)域優(yōu)先充電的概念,將原來(lái)針對(duì)單個(gè)節(jié)點(diǎn)充電請(qǐng)求順序、剩余能量和位置距離的研究擴(kuò)展為針對(duì)子區(qū)域范圍內(nèi)整體節(jié)點(diǎn)的剩余能量、位置距離的討論。我們提出了最大化充電有用功和最大化網(wǎng)絡(luò)壽命的聯(lián)合充電策略MJRL,區(qū)域優(yōu)先充電的方法減少了充電器的總移動(dòng)距離,提高了充電器充電開(kāi)銷比并延長(zhǎng)了網(wǎng)絡(luò)壽命。通過(guò)搭建仿真平臺(tái),我們對(duì)算法進(jìn)行了驗(yàn)證,仿真結(jié)果表明MJRL移動(dòng)充電策略能有效地提高網(wǎng)絡(luò)充電有用功,減少充電器總移動(dòng)距離。然后,本文繼續(xù)討論了在考慮數(shù)據(jù)收集情況下移動(dòng)充電和數(shù)據(jù)采集的聯(lián)合研究問(wèn)題。移動(dòng)充電器不僅對(duì)低電量的節(jié)點(diǎn)進(jìn)行能量補(bǔ)充,可同時(shí)進(jìn)行數(shù)據(jù)收集工作。針對(duì)這種模型,約束充電器最大移動(dòng)距離,我們通過(guò)數(shù)學(xué)建模得到了優(yōu)化模型,設(shè)計(jì)出了一種最大化節(jié)點(diǎn)最低剩余能量的充電方法MMRE,仿真結(jié)果可以驗(yàn)證新的充電方案能有效提高網(wǎng)絡(luò)中節(jié)點(diǎn)的最低剩余能量,延長(zhǎng)網(wǎng)絡(luò)壽命。
[Abstract]:The biggest bottleneck of wireless sensor networks is the limitation of total network energy. With the rapid development of microelectronic integrated circuits and wireless energy transmission technology, rechargeable wireless sensor networks replace the traditional sensor networks with disposable batteries. The use of mobile charging devices to provide sustainable energy for sensor networks has become a new research hotspot and development trend. In this paper, we first study the mobile charging scheme of single charger without considering the data collection. A concept of regional priority charging is proposed, and the original charging request order for a single node is put forward. The study of residual energy and position distance is extended to discuss the residual energy and position distance of the whole node in the subregion. We propose a combined charging strategy, MJRL, which maximizes charging power and network lifetime. The area priority charging method reduces the total moving distance of the charger, improves the charging cost ratio and prolongs the network life. The simulation results show that the MJRL mobile charging strategy can effectively improve the network charging power and reduce the total moving distance of the charger. Then, this paper discusses the joint research of mobile charging and data acquisition considering data collection. The mobile charger can not only replenish the energy of low-power nodes, but also collect data at the same time. For this model, we obtain the optimization model by mathematical modeling, which constrains the maximum moving distance of the charger. A charging method MMREE is designed to maximize the minimum residual energy of the nodes. The simulation results show that the new charging scheme can effectively improve the minimum residual energy of the nodes in the network and prolong the network life.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN929.5;TP212.9

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