【正文】 base. 4) Design the right algorithm for infrared diagnosis on the basis of the latest diagnostic norms of infrared diagnosis so that the system can use the temperature data capturing by the thermal infrared imager to aquire the running state of the power transformer. 5) According to the existing work structure of the power supply bureau, select the right transport protocols and transport process to ensure that realtime data can be uploaded to the monitoring center quickly so that the electrician can get the running state of the device. Key word: power transformer, thermal infrared imager, online monitoring II 碩士論文 基于紅外測溫技術的電力變壓器過熱故障在線監(jiān)測系統(tǒng)的設計與開發(fā) III 目 錄 摘 要 ........................................................................................................ I Abstract ........................................................................................................II 1 緒論 .......................................................................................................... 1 引言 .............................................................................................................................. 1 電力系統(tǒng)紅外診斷技術的國內(nèi)外研究與應用現(xiàn)狀 .................................................. 1 國外研究與應用現(xiàn)狀 ........................................................................................ 2 國內(nèi)研究與應用現(xiàn)狀 ........................................................................................ 2 變壓器傳統(tǒng)在線監(jiān)測方法簡介 .................................................................................. 2 變壓器紅外在線監(jiān)測的目的和意義 .......................................................................... 3 課題研究的主要內(nèi)容 .................................................................................................. 4 2 紅外熱像儀的選擇和使用 ......................................................................... 7 紅外熱像儀的工作原理 .............................................................................................. 7 紅外輻射原理 .................................................................................................... 7 紅外點測溫原理 ................................................................................................ 8 紅外熱像儀的系統(tǒng)組成 .................................................................................... 9 紅外熱像儀技術性能指標 ........................................................................................ 10 影響紅外熱像儀測溫的因素及相關對策 ................................................................ 12 熱像儀選擇基本原則 ................................................................................................ 13 系統(tǒng)熱像儀的選擇 .................................................................................................... 13 本章小結 .................................................................................................................... 14 3 在線監(jiān)測系統(tǒng)總體方案設計 ................................................................... 15 在線監(jiān)測系統(tǒng)整體結構設計 .................................................................................... 15 在線監(jiān)測系統(tǒng)的硬件實現(xiàn) ........................................................................................ 16 電源模塊 .......................................................................................................... 16 防護罩簡介 ...................................................................................................... 17 熱像儀簡介 ...................................................................................................... 17 工業(yè)控制計算機簡介 ...................................................................................... 19 TLC485 串口轉接模塊 .................................................................................... 20 云臺簡介 .......................................................................................................... 21 在線監(jiān)測系統(tǒng)的軟件設計 ........................................................................................ 21 本章小結 .................................................................................................................... 23 目錄 碩士論文 IV 4 變壓器過熱故障在線監(jiān)測系統(tǒng)軟件設計 ................................................ 24 系統(tǒng)軟件主界面介紹 ................................................................................................ 24 系統(tǒng)工作流程介紹 .................................................................................................... 26 參數(shù)設置模塊 ............................................................................................................ 28 監(jiān)測點設置模塊 ........................................................................................................ 29 在線監(jiān)測方式設置模塊 ............................................................................................ 31 定時器簡介 ...................................................................................................... 32 定時監(jiān)測 .......................................................................................................... 32 整點監(jiān)測 ........................................................................................................... 33 云臺控制模塊 ............................................................................................................ 34 串口控制軟件實現(xiàn) .......................................................................................... 34 PelcoD 協(xié)議及其軟件實現(xiàn) ............................................................................. 35 云臺控制軟件實現(xiàn) .......................................................................................... 36 采集模塊 .................................................................................................................... 37 DLL調(diào)用方式的選擇 ...................................................................................... 37 熱像儀數(shù)據(jù)采集函數(shù) ....................................................................