基于時(shí)空關(guān)聯(lián)性的無線傳感器網(wǎng)絡(luò)網(wǎng)關(guān)異常檢測研究
發(fā)布時(shí)間：2018-07-24 21:48
【摘要】：隨著通信技術(shù)、檢測技術(shù)、嵌入式技術(shù)的快速發(fā)展，無線傳感器網(wǎng)絡(luò)在各領(lǐng)域中得到了廣泛的應(yīng)用。網(wǎng)關(guān)作為無線傳感器網(wǎng)絡(luò)的管理者，承上啟下地控制著整個(gè)網(wǎng)絡(luò)運(yùn)行，其管理權(quán)限和可靠性要求都是最高的。由于無線傳感器網(wǎng)絡(luò)通常工作在復(fù)雜、惡劣甚至敵對環(huán)境中，而網(wǎng)關(guān)作為無線傳感器網(wǎng)絡(luò)最主要的現(xiàn)場設(shè)備，其工作中必然出現(xiàn)一些不可避免的重要或緊急問題，因此，無線傳感器網(wǎng)絡(luò)網(wǎng)關(guān)的故障檢測已引起了學(xué)術(shù)界和工程界的高度重視。無線傳感器網(wǎng)絡(luò)中不同的傳感器節(jié)點(diǎn)所感知的信息不僅在時(shí)間上高度關(guān)聯(lián)，而且在空間上也具備了關(guān)聯(lián)特性，這就形成了無線傳感器網(wǎng)絡(luò)的一個(gè)新的“時(shí)空關(guān)聯(lián)性”特性。通過研究無線傳感器網(wǎng)絡(luò)時(shí)空變化規(guī)律，能夠在網(wǎng)絡(luò)故障檢測、網(wǎng)絡(luò)調(diào)度、網(wǎng)絡(luò)節(jié)能等方面發(fā)揮巨大的作用。因此基于時(shí)空關(guān)聯(lián)性的網(wǎng)關(guān)異常檢測研究具有重要的理論意義和實(shí)際應(yīng)用價(jià)值。 本文在總結(jié)國內(nèi)外研究成果的基礎(chǔ)上，，針對目前網(wǎng)關(guān)故障研究所存在的問題，提出了一種“現(xiàn)場級”網(wǎng)關(guān)故障檢測架構(gòu)。著重研究了無線傳感器網(wǎng)絡(luò)時(shí)空關(guān)聯(lián)特性理論，基于時(shí)空關(guān)聯(lián)性的網(wǎng)關(guān)異常檢測實(shí)現(xiàn)方法，時(shí)空關(guān)聯(lián)性的MAC協(xié)議，面向適用于工業(yè)現(xiàn)場并構(gòu)建了時(shí)空關(guān)聯(lián)無線傳感器網(wǎng)絡(luò)，進(jìn)行了工業(yè)現(xiàn)場的性能測試和驗(yàn)證。主要研究工作總結(jié)如下： 1.根據(jù)無線傳感器網(wǎng)絡(luò)在監(jiān)測區(qū)域內(nèi)信息融合的過程，從信號的相關(guān)性理論出發(fā)，研究構(gòu)建時(shí)空關(guān)聯(lián)性的基本架構(gòu)，提出無線傳感器網(wǎng)絡(luò)時(shí)間關(guān)聯(lián)性和空間關(guān)聯(lián)性的基本概念。構(gòu)建了無線傳感器網(wǎng)絡(luò)的時(shí)間關(guān)聯(lián)性函數(shù)，空間關(guān)聯(lián)性函數(shù)，時(shí)間關(guān)聯(lián)性系數(shù)，空間關(guān)聯(lián)性系數(shù)，網(wǎng)關(guān)狀態(tài)模型，以及用于網(wǎng)關(guān)狀態(tài)模型評價(jià)的節(jié)點(diǎn)貢獻(xiàn)評價(jià)函數(shù)及參數(shù)貢獻(xiàn)評價(jià)函數(shù)。為網(wǎng)關(guān)異常檢測及時(shí)空關(guān)聯(lián)MAC協(xié)議的研究提供理論基礎(chǔ)。 2.分析了無線傳感器網(wǎng)絡(luò)網(wǎng)關(guān)異常檢測存在的問題，針對網(wǎng)關(guān)當(dāng)前狀態(tài)和歷史狀態(tài)信息難以比對的問題，提出了改進(jìn)型的滑動(dòng)窗口法，實(shí)現(xiàn)了網(wǎng)關(guān)歷史特征狀態(tài)信息的特征提取；并在此基礎(chǔ)上，綜合了誤檢率、漏檢率、計(jì)算復(fù)雜度等多個(gè)指標(biāo)，分析比較了多種異常檢測方法，提出了一種改進(jìn)型的基于距離的離群點(diǎn)檢測技術(shù)，實(shí)現(xiàn)了網(wǎng)關(guān)狀態(tài)的離群點(diǎn)檢測。 3.根據(jù)無線傳感器網(wǎng)絡(luò)時(shí)空關(guān)聯(lián)性的理論架構(gòu)，研究了一種時(shí)空關(guān)聯(lián)性的MAC協(xié)議。該協(xié)議融合了時(shí)空關(guān)聯(lián)的方法，針對自適應(yīng)入網(wǎng)、功率調(diào)節(jié)、時(shí)隙分配、網(wǎng)關(guān)異常檢測及異常處理等問題，提出了相應(yīng)的入網(wǎng)自適應(yīng)機(jī)制、功率自適應(yīng)機(jī)制、時(shí)隙動(dòng)態(tài)分配機(jī)制、網(wǎng)關(guān)異常檢測及網(wǎng)絡(luò)異�？刂茩C(jī)制的具體方法，為時(shí)空關(guān)聯(lián)性的網(wǎng)關(guān)異常檢測技術(shù)在無線網(wǎng)絡(luò)中的應(yīng)用提供了具體的實(shí)現(xiàn)途徑。 4.創(chuàng)新構(gòu)建一套具有網(wǎng)關(guān)異常檢測功能的時(shí)空關(guān)聯(lián)性的網(wǎng)絡(luò)系統(tǒng)，提出了基于時(shí)空關(guān)聯(lián)性規(guī)則的傳感器節(jié)點(diǎn)及診斷節(jié)點(diǎn)的具體實(shí)現(xiàn)方法；研究設(shè)計(jì)了整個(gè)網(wǎng)絡(luò)系統(tǒng)中傳感器節(jié)點(diǎn)，診斷節(jié)點(diǎn)和網(wǎng)關(guān)的具體軟硬件實(shí)現(xiàn)方式，以及相應(yīng)的工作狀態(tài)機(jī)；提出了一種面向工業(yè)應(yīng)用的應(yīng)用層實(shí)現(xiàn)方法，為網(wǎng)絡(luò)系統(tǒng)推向?qū)嶋H工業(yè)應(yīng)用奠定基礎(chǔ)。 5.將具有時(shí)空關(guān)聯(lián)性的無線傳感器網(wǎng)絡(luò)系統(tǒng)實(shí)際應(yīng)用于612冷軋連退機(jī)組設(shè)備檢測與診斷系統(tǒng)中，并進(jìn)行了傳感器節(jié)點(diǎn)，診斷節(jié)點(diǎn)的傳輸距離測試，功率自適應(yīng)測試，時(shí)隙長度分配測試，網(wǎng)關(guān)異常檢測測試及網(wǎng)絡(luò)異常處理測試。全面評估網(wǎng)絡(luò)性能，驗(yàn)證網(wǎng)絡(luò)系統(tǒng)在工業(yè)現(xiàn)場運(yùn)行的可行性，并在實(shí)際冷軋連退機(jī)組中構(gòu)建具有一套示范系統(tǒng)。全文研究成果為網(wǎng)關(guān)的異常檢測的實(shí)現(xiàn)方法，技術(shù)手段提供重要的理論支持和實(shí)驗(yàn)基礎(chǔ)，為提高無線傳感器網(wǎng)絡(luò)的可靠性研究提供一種新思路。
[Abstract]:With the rapid development of communication technology, detection technology and embedded technology, wireless sensor networks have been widely used in various fields. As the manager of wireless sensor networks, gateways are the most important for the management of the whole network, and the power and reliability of the wireless sensor network are the highest. As the most important field equipment in wireless sensor networks, the gateway is the most important field device in the wireless sensor network, and there must be some unavoidable and urgent problems in its work. Therefore, the fault detection of the wireless sensor network gateway has caused great attention in the academic and industrial circles. The information perceived by sensor nodes is not only highly correlated in time, but also in space, which forms a new "spatio-temporal correlation" characteristic of wireless sensor networks. By studying the temporal and spatial variation of wireless sensor networks, it can be used in network fault detection, network scheduling, and network energy conservation. Therefore, the research of gateway anomaly detection based on spatial-temporal correlation is of great theoretical significance and practical application value.
On the basis of summarizing the research results at home and abroad, this paper puts forward a "field level" gateway fault detection architecture in view of the existing problems of gateway fault research, and focuses on the study of the spatio-temporal correlation characteristic theory of wireless sensor networks, the realization method of gateway anomaly detection based on spatio-temporal correlation, and the MAC protocol of spatio-temporal correlation, In view of the application of the industrial site and building a spatio-temporal wireless sensor network, the performance test and verification of the industrial site are carried out. The main research work is summarized as follows:
1. according to the process of information fusion in the monitoring area of wireless sensor networks, based on the correlation theory of the signal, the basic architecture of constructing spatiotemporal correlation is studied, and the basic concepts of time correlation and spatial correlation of wireless sensor networks are proposed. The time correlation function and spatial correlation function of the wireless sensor network are constructed. Time correlation coefficient, spatial correlation coefficient, gateway state model, and node contribution evaluation function and parameter contribution evaluation function used to evaluate gateway state model. It provides a theoretical basis for the research of gateway anomaly detection and spatio-temporal Association MAC protocol.
2. the existing problems of abnormal detection of wireless sensor network gateway are analyzed. In view of the problem that the current state and historical state information of the gateway are difficult to compare, an improved sliding window method is proposed, which realizes the feature extraction of the historical feature state information of the gateway, and on this basis, the error detection rate, the leak detection rate, the computational complexity and so on are integrated. A variety of anomaly detection methods are compared and compared, and an improved distance based outlier detection technique is proposed, which realizes the outlier detection of the gateway state.
3. according to the theoretical framework of spatio-temporal correlation of wireless sensor networks, a spatio-temporal MAC protocol is studied. The protocol combines the method of spatio-temporal correlation, and proposes a corresponding adaptive mechanism, power adaptive mechanism, and adaptive mechanism, power adaptive mechanism, for adaptive network entry, power adjustment, time slot allocation, gateway anomaly detection and exception handling. The gap dynamic allocation mechanism, the gateway anomaly detection and the specific method of network exception control mechanism provide a specific implementation approach for the application of space-time associated gateway anomaly detection technology in wireless network.
4. a set of spatio-temporal network system with gateway anomaly detection function is set up. The specific implementation method of sensor nodes and diagnostic nodes based on spatiotemporal association rules is proposed, and the specific software and hardware implementation methods of sensor nodes, diagnostic nodes and gateways in the whole network system are designed and designed, as well as the corresponding work. As a state machine, a method of application layer for industrial application is put forward, which lays the foundation for pushing the network system to practical industrial application.
5. the wireless sensor network system with spatiotemporal correlation is applied to the detection and diagnosis system of the 612 cold rolling mill unit, and the sensor node, the transmission distance test of the diagnosis node, the power adaptive test, the time slot length distribution test, the gateway anomaly detection test and the network anomaly processing test. The performance of the network proves the feasibility of the network system running in the industrial field, and has a set of demonstration systems in the actual cold rolling mills. The full text research results provide an important theoretical support and experimental basis for the implementation of the abnormal detection of the gateway, and the technical means. It provides a kind of reliability research for the high wireless sensor network. New ideas.
【學(xué)位授予單位】：上海大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TP212.9;TN929.5
[Abstract]:With the rapid development of communication technology, detection technology and embedded technology, wireless sensor networks have been widely used in various fields. As the manager of wireless sensor networks, gateways are the most important for the management of the whole network, and the power and reliability of the wireless sensor network are the highest. As the most important field equipment in wireless sensor networks, the gateway is the most important field device in the wireless sensor network, and there must be some unavoidable and urgent problems in its work. Therefore, the fault detection of the wireless sensor network gateway has caused great attention in the academic and industrial circles. The information perceived by sensor nodes is not only highly correlated in time, but also in space, which forms a new "spatio-temporal correlation" characteristic of wireless sensor networks. By studying the temporal and spatial variation of wireless sensor networks, it can be used in network fault detection, network scheduling, and network energy conservation. Therefore, the research of gateway anomaly detection based on spatial-temporal correlation is of great theoretical significance and practical application value.
On the basis of summarizing the research results at home and abroad, this paper puts forward a "field level" gateway fault detection architecture in view of the existing problems of gateway fault research, and focuses on the study of the spatio-temporal correlation characteristic theory of wireless sensor networks, the realization method of gateway anomaly detection based on spatio-temporal correlation, and the MAC protocol of spatio-temporal correlation, In view of the application of the industrial site and building a spatio-temporal wireless sensor network, the performance test and verification of the industrial site are carried out. The main research work is summarized as follows:
1. according to the process of information fusion in the monitoring area of wireless sensor networks, based on the correlation theory of the signal, the basic architecture of constructing spatiotemporal correlation is studied, and the basic concepts of time correlation and spatial correlation of wireless sensor networks are proposed. The time correlation function and spatial correlation function of the wireless sensor network are constructed. Time correlation coefficient, spatial correlation coefficient, gateway state model, and node contribution evaluation function and parameter contribution evaluation function used to evaluate gateway state model. It provides a theoretical basis for the research of gateway anomaly detection and spatio-temporal Association MAC protocol.
2. the existing problems of abnormal detection of wireless sensor network gateway are analyzed. In view of the problem that the current state and historical state information of the gateway are difficult to compare, an improved sliding window method is proposed, which realizes the feature extraction of the historical feature state information of the gateway, and on this basis, the error detection rate, the leak detection rate, the computational complexity and so on are integrated. A variety of anomaly detection methods are compared and compared, and an improved distance based outlier detection technique is proposed, which realizes the outlier detection of the gateway state.
3. according to the theoretical framework of spatio-temporal correlation of wireless sensor networks, a spatio-temporal MAC protocol is studied. The protocol combines the method of spatio-temporal correlation, and proposes a corresponding adaptive mechanism, power adaptive mechanism, and adaptive mechanism, power adaptive mechanism, for adaptive network entry, power adjustment, time slot allocation, gateway anomaly detection and exception handling. The gap dynamic allocation mechanism, the gateway anomaly detection and the specific method of network exception control mechanism provide a specific implementation approach for the application of space-time associated gateway anomaly detection technology in wireless network.
4. a set of spatio-temporal network system with gateway anomaly detection function is set up. The specific implementation method of sensor nodes and diagnostic nodes based on spatiotemporal association rules is proposed, and the specific software and hardware implementation methods of sensor nodes, diagnostic nodes and gateways in the whole network system are designed and designed, as well as the corresponding work. As a state machine, a method of application layer for industrial application is put forward, which lays the foundation for pushing the network system to practical industrial application.
5. the wireless sensor network system with spatiotemporal correlation is applied to the detection and diagnosis system of the 612 cold rolling mill unit, and the sensor node, the transmission distance test of the diagnosis node, the power adaptive test, the time slot length distribution test, the gateway anomaly detection test and the network anomaly processing test. The performance of the network proves the feasibility of the network system running in the industrial field, and has a set of demonstration systems in the actual cold rolling mills. The full text research results provide an important theoretical support and experimental basis for the implementation of the abnormal detection of the gateway, and the technical means. It provides a kind of reliability research for the high wireless sensor network. New ideas.
【學(xué)位授予單位】：上海大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2014
【分類號】：TP212.9;TN929.5
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