本文選題：物聯(lián)網(wǎng)服務(wù) + 服務(wù)質(zhì)量保障��； 參考：《北京郵電大學(xué)》2014年博士論文

【摘要】：物聯(lián)網(wǎng)技術(shù)的興起給服務(wù)計算開辟了新的應(yīng)用領(lǐng)域,物聯(lián)網(wǎng)服務(wù)即是二者相結(jié)合的產(chǎn)物。在新的環(huán)境中,物聯(lián)網(wǎng)服務(wù)的質(zhì)量保障方法面臨著新的挑戰(zhàn)。對于服務(wù)的質(zhì)量保障問題,本文從體系架構(gòu)的角度出發(fā),研究并細(xì)化了課題組提出的事件驅(qū)動、面向服務(wù)的物聯(lián)網(wǎng)服務(wù)提供架構(gòu),提出了一種可擴(kuò)展、低延遲的發(fā)布／訂閱架構(gòu)以保障物聯(lián)網(wǎng)服務(wù)的數(shù)據(jù)分發(fā)質(zhì)量,提出了一個無線傳感器網(wǎng)絡(luò)中基于簇的分組確認(rèn)方法以保障物聯(lián)網(wǎng)服務(wù)的數(shù)據(jù)傳輸質(zhì)量。本文認(rèn)為,從架構(gòu)的角度對物聯(lián)網(wǎng)服務(wù)的質(zhì)量保障方法進(jìn)行探索是一種有意義的嘗試,對于新興的物聯(lián)網(wǎng)服務(wù)系統(tǒng)而言更具有針對性和指導(dǎo)意義,有助于快速構(gòu)建物聯(lián)網(wǎng)示范應(yīng)用。 本文的研究工作取得以下成果： (1)面向服務(wù)架構(gòu)(Service-Oriented Architecture, SOA)和事件驅(qū)動架構(gòu)(Event Driven Architecture, EDA)是互補(bǔ)的,而事件驅(qū)動、面向服務(wù)的架構(gòu)(Event-Driven Service-Oriented Architecture, EDSOA)則是傳統(tǒng)事件驅(qū)動架構(gòu)的變革。在物聯(lián)網(wǎng)這一新環(huán)境中,物聯(lián)網(wǎng)服務(wù)面臨著異構(gòu)性、動態(tài)性等諸多挑戰(zhàn)。為應(yīng)對這些挑戰(zhàn),課題組提出了一種事件驅(qū)動、面向服務(wù)的物聯(lián)網(wǎng)服務(wù)提供架構(gòu)。本文對事件驅(qū)動、面向服務(wù)的物聯(lián)網(wǎng)服務(wù)提供架構(gòu)進(jìn)行了細(xì)化、補(bǔ)充和完善工作,特別是接入代理、事件代理、復(fù)雜事件處理引擎、資源描述模型庫、架構(gòu)及各組成部分的處理流程方面。本文對該架構(gòu)所做的細(xì)化、補(bǔ)充和完善工作,增強(qiáng)了架構(gòu)的實用性和可操作性,促進(jìn)了該架構(gòu)的進(jìn)一步完善。 (2)大規(guī)模、分布式、松散耦合的物聯(lián)網(wǎng)環(huán)境中以異步的方式按需分發(fā)感知信息需要一種可擴(kuò)展、低延遲的信息分發(fā)架構(gòu),為此本文提出了一種高效和可擴(kuò)展的發(fā)布／訂閱代理架構(gòu)。作為事件驅(qū)動、面向?qū)ο蠹軜?gòu)的關(guān)鍵組成部分,該架構(gòu)組織多個發(fā)布／訂閱代理成一個基于Grid Quorum的點對點拓?fù)浣Y(jié)構(gòu),以實現(xiàn)高效的主題搜索。它還利用了主題搜索算法和單跳緩存策略,以盡量減少搜索延遲。輕量級的RESTful接口使得該架構(gòu)更適合物聯(lián)網(wǎng)服務(wù)。成本理論分析和實驗研究表明,該架構(gòu)在搜索滿意度顯著提高的情況下沒有影響搜索成本。 (3)為了為了保障物聯(lián)網(wǎng)服務(wù)數(shù)據(jù)傳輸質(zhì)量,有效提高分組交付率,本文提出了一個無線傳感器網(wǎng)絡(luò)中基于簇的分組確認(rèn)方法。該方法累積多個節(jié)點的多個分組的確認(rèn)到一個累積確認(rèn)消息中,這自然可以比傳統(tǒng)方法減少更多的分組確認(rèn)消息。仿真結(jié)果表明,該方法有效地提高了分組交付率,降低了平均端到端延遲和確認(rèn)消息路徑的總長度,從而降低了網(wǎng)絡(luò)負(fù)載。
[Abstract]:The rise of Internet of things technology has opened up a new application field for service computing. Internet of things service is the product of the combination of the two. In the new environment, the Internet of things service quality assurance methods are facing new challenges. For the problem of service quality assurance, this paper studies and refines the event-driven, service-oriented Internet of things service provider architecture proposed by the research group from the point of view of architecture. A low latency publish / subscribe architecture is proposed to ensure the quality of data distribution in Internet of things services. A cluster-based packet validation method is proposed to ensure the quality of data transmission in Internet of things services in wireless sensor networks. This paper holds that it is a meaningful attempt to explore the quality assurance method of Internet of things services from the perspective of architecture, which is more pertinent and instructive to the emerging Internet of things service system. Help to quickly build the Internet of things demonstration application. The research results of this paper are as follows: Service-Oriented Architecture (SOA) and event driven Architecture (Event Driven Architecture, EDA) are complementary, while Event-Driven Service-Oriented Architecture (EDSOA) is a change in traditional event-driven architecture. In the new environment of Internet of things, Internet of things services are facing many challenges, such as heterogeneity, dynamics and so on. To address these challenges, the team proposed an event-driven, service-oriented Internet of things service delivery architecture. In this paper, the architecture of event-driven, service-oriented Internet of things service is refined, supplemented and improved, especially for access agent, event agent, complex event processing engine, resource description model library, etc. Architecture and process aspects of each component. The detailed, supplementary and perfect work of this paper enhances the practicability and maneuverability of the architecture, and promotes the further improvement of the architecture. A large, distributed, loosely coupled Internet of things environment requires an extensible, low-latency information distribution architecture that distributes perceived information asynchronously on demand. Therefore, this paper proposes an efficient and extensible publish / subscribe proxy architecture. As a key component of an event-driven, object-oriented architecture, the architecture organizes multiple publish / subscribe proxies into a point-to-point topology based on Grid Quorum to achieve efficient topic search. It also uses topic search algorithm and single-hop cache strategy to minimize search latency. The lightweight RESTful interface makes the architecture more suitable for Internet of things services. The cost theory analysis and experimental research show that the structure has no effect on search cost without significant increase in search satisfaction. In order to ensure the quality of Internet of things service data transmission and improve the packet delivery rate, this paper proposes a clust-based packet confirmation method in wireless sensor networks. This method accumulates the acknowledgment of multiple packets of multiple nodes into a single cumulative acknowledgement message, which naturally reduces the number of packet acknowledgment messages compared with the traditional method. Simulation results show that the proposed method can effectively improve the packet delivery rate, reduce the average end-to-end delay and the total length of the acknowledgement message path, and thus reduce the network load.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TP391.44;TN929.5

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