本文關(guān)鍵詞： 工業(yè)無線網(wǎng)絡(luò) WirelessHART網(wǎng)關(guān) WirelessHART傳感器 WirelessHART網(wǎng)絡(luò)管理　出處：《華南理工大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：在化工企業(yè)，維持正常的生產(chǎn)和增效益必須要靠設(shè)備的可靠性和先進(jìn)的維修模式來支持。泵作為生產(chǎn)環(huán)節(jié)中的關(guān)鍵設(shè)備，傳統(tǒng)的監(jiān)測方法是靠定期的人工巡檢和手摸耳聽來判斷泵和軸承的運行狀態(tài)。這種傳統(tǒng)的泵的監(jiān)測方式，需要消耗大量的人力成本，最大的風(fēng)險還在于因每個人對泵的理解和經(jīng)驗上的差異，導(dǎo)致對泵的潛在故障的評判上存在差異或誤判，不能從根本上消除泵的設(shè)備故障。 上世紀(jì)80年代在化工企業(yè)推行的在線監(jiān)測系統(tǒng)，在泵體軸承座位置安裝在線傳感器，現(xiàn)場敷設(shè)信號線和通信電纜，將傳感器采集的振動信號引入到安裝在現(xiàn)場的監(jiān)測單元。通過分析采集的振動信號，可以定性的評判設(shè)備的故障類型，軸承損傷部位和嚴(yán)重程度。這種先進(jìn)的在線監(jiān)測方式，改變了工廠的維修策略，將設(shè)備維修模式從失效性維修推向了預(yù)測性維修。整個設(shè)備的維修費用得到了大幅的降低。但由于化工環(huán)境下的防爆需要，這種在現(xiàn)場敷設(shè)信號線和電纜，安裝傳感器和監(jiān)測單元，導(dǎo)致施工周期長、材料成本高、人力成本貴和后期的維護(hù)成本高。 由于現(xiàn)代通信技術(shù)和微電子技術(shù)的快速發(fā)展，通過在泵區(qū)搭建無線監(jiān)測系統(tǒng)，可實現(xiàn)在生產(chǎn)現(xiàn)場無需敷設(shè)任何信號電纜線和通信電纜。整個無線監(jiān)測系統(tǒng)搭建快速，實現(xiàn)的周期極短。相比在線監(jiān)測系統(tǒng)，無線監(jiān)測系統(tǒng)的安裝、調(diào)試和后期維護(hù)的成本極低，并且系統(tǒng)可實現(xiàn)在線系統(tǒng)同樣的監(jiān)測功能。 WirelessHART (Wireless Highway Addressable Remote Transducer-無線高速可尋址遠(yuǎn)程傳感器)監(jiān)測系統(tǒng)具備監(jiān)測設(shè)備的振動值（mm/s），加速度包絡(luò)值(mm/s^2)，溫度值(oC)和電池的電量。通過設(shè)定的數(shù)據(jù)采集時間和周期，系統(tǒng)將通過傳感器輪詢和網(wǎng)關(guān)輪詢的兩種模式將監(jiān)測數(shù)據(jù)，通過無線網(wǎng)絡(luò)將采集的數(shù)據(jù)傳輸?shù)街鳈C。 作為在國內(nèi)首次采用WirelessHART監(jiān)測系統(tǒng)來監(jiān)測泵的狀態(tài)，，無任何案例和實施經(jīng)驗參照的情況下，結(jié)合在現(xiàn)場的項目實施所累計的應(yīng)用經(jīng)驗，本論文的主要研究工作是：1）如何選擇安裝WirelessHART網(wǎng)關(guān)和網(wǎng)絡(luò)適配器的位置，來搭建運行可靠，無線信號覆蓋廣的WirelessHART網(wǎng)絡(luò)監(jiān)測系統(tǒng)；2）如何選擇安裝WirelessHART傳感器的位置和天線的朝向來保證采集的振動信號有效，以及無線傳感器的信號能前后覆蓋；3）如何設(shè)定數(shù)據(jù)的采集模式、數(shù)據(jù)的采集時間、數(shù)據(jù)采集的循環(huán)周期和傳感器的節(jié)點模式來保證整個無線監(jiān)測系統(tǒng)的健壯性，以及傳感器獲得更長的使用壽命；4）如何通過分析網(wǎng)絡(luò)日志文件來分析網(wǎng)絡(luò)系統(tǒng)和無線節(jié)點的可靠性；5）如何通過解讀采集的數(shù)據(jù)，結(jié)合一個軸承外圈早期損傷的案例來確認(rèn)采集的數(shù)據(jù)的有效性；6）提出系統(tǒng)還需要改進(jìn)的地方。
[Abstract]:In chemical enterprises, the maintenance of normal production and efficiency must rely on the reliability of equipment and advanced maintenance mode to support. Pump as the key equipment in the production process. The traditional monitoring method is to judge the operating state of the pump and bearing by the regular manual inspection and the hand touching ear. This traditional monitoring method of the pump needs to consume a large amount of manpower cost. The biggest risk lies in the difference of understanding and experience of the pump, which leads to the difference or misjudgment of the potential fault of the pump, which can not fundamentally eliminate the equipment fault of the pump. In -20s, the on-line monitoring system was implemented in chemical enterprises. The on-line sensor was installed in the position of the bearing seat of the pump body, and the signal lines and communication cables were laid on the spot. The vibration signal collected by the sensor is introduced into the monitoring unit installed in the field. By analyzing the vibration signal collected, the fault type of the equipment can be judged qualitatively. Bearing damage location and severity. This advanced online monitoring method has changed the maintenance strategy of the factory. The maintenance mode of the equipment has been pushed from failure maintenance to predictive maintenance. The maintenance cost of the whole equipment has been greatly reduced. However, due to the need of explosion proof in chemical environment, the signal lines and cables are laid in the field. Installation of sensors and monitoring units leads to long construction cycle, high cost of materials, high cost of manpower and high cost of later maintenance. Due to the rapid development of modern communication technology and microelectronics technology, wireless monitoring system is built in the pump area. The wireless monitoring system can be constructed quickly and the period of realization is very short. Compared with the on-line monitoring system, the wireless monitoring system can be installed. The cost of debugging and later maintenance is very low, and the system can achieve the same monitoring function as online system. WirelessHART (. Wireless Highway Addressable Remote Transducer-Wireless High-Speed addressable remote Sensor. The monitoring system has the vibration value of the monitoring equipment (mm / s). The acceleration envelope value of m / m / s ^ 2, the temperature value of C) and the battery's electricity quantity. By setting the time and period of data acquisition, the system will monitor the data through the two modes of sensor polling and gateway polling. The collected data is transmitted to the host through the wireless network. As the first time in China to use the WirelessHART monitoring system to monitor the status of the pump, without any case and implementation experience reference, combined with the site of the project implementation of the cumulative application experience. The main research work of this thesis is how to choose the location of installing WirelessHART gateway and network adapter to build up and run reliably. Wireless signal coverage of the WirelessHART network monitoring system; 2) how to select the position of the WirelessHART sensor and the orientation of the antenna to ensure that the collected vibration signal is effective, and the signal of the wireless sensor can cover the front and back; 3) how to set the data acquisition mode, the time of data acquisition, the cycle period of data acquisition and the node mode of sensor to ensure the robustness of the whole wireless monitoring system. And the sensor to obtain a longer service life; 4) how to analyze the reliability of network system and wireless nodes by analyzing network log files; 5) how to confirm the validity of the collected data by interpreting the collected data and combining with a case of early damage to the outer ring of bearing; 6) the system needs to be improved.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TH38;TP274

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