【摘要】：隨著物聯(lián)網(wǎng)技術(shù)的發(fā)展,物聯(lián)網(wǎng)應(yīng)用已被越來越多地應(yīng)用在社會(huì)生活的方方面面,業(yè)內(nèi)人士預(yù)測(cè)物聯(lián)網(wǎng)將會(huì)引領(lǐng)第三次科技革命浪潮。在不久的將來會(huì)有成千上萬種傳感器設(shè)備接入互聯(lián)網(wǎng),因此如何讓這么多異構(gòu)設(shè)備有效接入并進(jìn)行科學(xué)管理,即被稱為網(wǎng)關(guān)中間件技術(shù)成為了研究的熱點(diǎn)。然而目前的網(wǎng)關(guān)中間件依然存在著一些問題,如過度依賴于相關(guān)平臺(tái),感知設(shè)備協(xié)議和格式過于復(fù)雜,無法進(jìn)行有效的原型開發(fā)與驗(yàn)證,缺乏對(duì)設(shè)備的動(dòng)態(tài)感知等等。因此,如何使中間件支持更大范圍內(nèi)的跨平臺(tái)性、支持對(duì)底層設(shè)備的動(dòng)態(tài)感知以及快速進(jìn)行原型開發(fā)與驗(yàn)證成為了本課題研究的重點(diǎn)。為了解決上述問題,本文提出了以O(shè)penWRT嵌入式操作系統(tǒng)為基礎(chǔ)的網(wǎng)關(guān)中間件系統(tǒng)架構(gòu)。首先是對(duì)相關(guān)基礎(chǔ)技術(shù)進(jìn)行了深入的研究,包括OpenWRT系統(tǒng)的定制化開發(fā)和與開源硬件的結(jié)合,AllJoyn技術(shù)的基本概念和運(yùn)行原理以及網(wǎng)關(guān)中間件在網(wǎng)關(guān)系統(tǒng)中的地位與作用;接著本文詳細(xì)探討了網(wǎng)關(guān)中間件功能架構(gòu)的設(shè)計(jì)過程,以模塊化的分層思想簡(jiǎn)化設(shè)計(jì)邏輯,上層主要設(shè)計(jì)網(wǎng)關(guān)與物聯(lián)網(wǎng)平臺(tái)的可靠交互原理,下面兩層結(jié)合AllJoyn技術(shù)設(shè)計(jì)網(wǎng)關(guān)對(duì)設(shè)備的動(dòng)態(tài)感知能力;最后以一個(gè)開源硬件與微信結(jié)合的演示項(xiàng)目深入剖析了建立在MicroWRT開源硬件平臺(tái)上的網(wǎng)關(guān)中間件實(shí)現(xiàn)細(xì)節(jié),包括中間件的跨平臺(tái)開發(fā)和設(shè)備動(dòng)態(tài)發(fā)現(xiàn)機(jī)制的實(shí)現(xiàn)以及借助開源硬件優(yōu)勢(shì)實(shí)現(xiàn)原型系統(tǒng)的構(gòu)建與驗(yàn)證。通過最后對(duì)演示系統(tǒng)核心功能的測(cè)試,證明了本研究的價(jià)值。
[Abstract]:With the development of Internet of things technology, Internet of things applications have been more and more used in all aspects of social life, industry insiders predict that the Internet of things will lead to the third wave of scientific and technological revolution. In the near future, there will be thousands of sensor devices connected to the Internet, so how to effectively access so many heterogeneous devices and carry out scientific management, that is, called gateway middleware technology, has become a hot research topic. However, there are still some problems in the gateway middleware, such as excessive dependence on the relevant platform, the perception of device protocols and formats are too complex, unable to carry out effective prototype development and verification, lack of dynamic perception of the device, and so on. Therefore, how to make middleware support a wider range of cross-platform, support the dynamic perception of the underlying equipment and rapid prototype development and verification has become the focus of this topic. In order to solve the above problems, a gateway middleware system architecture based on OpenWRT embedded operating system is proposed in this paper. First of all, the related basic technologies are deeply studied, including the customized development of OpenWRT system and the combination with open source hardware, the basic concept and operation principle of AllJoyn technology, and the position and function of gateway middleware in gateway system. Then this paper discusses in detail the design process of gateway middleware functional architecture, simplifies the design logic with the idea of modularization layering, the upper layer mainly designs the reliable interaction principle between gateway and Internet of things platform, the following two layers combine AllJoyn technology to design the dynamic perception ability of gateway to the device; Finally, with a demonstration project of the combination of open source hardware and WeChat, the implementation details of gateway middleware based on MicroWRT open source hardware platform are deeply analyzed, including the cross-platform development of middleware and the implementation of device dynamic discovery mechanism, as well as the construction and verification of prototype system with the help of open source hardware advantages. Finally, the value of this study is proved by the test of the core functions of the demonstration system.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TN929.5;TP391.44

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