以確認(rèn)本文方法滿足電力設(shè)備和器件的校正精度要求。結(jié)果比對(duì)時(shí),對(duì)采用1臺(tái)攝像頭校正對(duì)應(yīng)的校正圖像按照采用16臺(tái)攝像頭時(shí)的分塊規(guī)則劃分,然后計(jì)算每塊的最大誤差。表2對(duì)比了使用1臺(tái)攝像頭校正和使用16臺(tái)攝像頭校正時(shí)的部分實(shí)驗(yàn)結(jié)果。可以看出,本文提出方法的精度可以控制在0.5 mm以下,可以為電力設(shè)備和器件的狀態(tài)分析提供高精度的圖像。

 4 結(jié)語

本文從數(shù)碼圖像采集設(shè)備的原理出發(fā),結(jié)合實(shí)際應(yīng)用需求,對(duì)拍攝過程中圖像失真的程度進(jìn)行分析,提出的方法可有效提高電力設(shè)備器件圖像的精確性。隨著智能電網(wǎng)的不斷發(fā)展,為提高電力系統(tǒng)運(yùn)行維護(hù)的效率,對(duì)可視化電力設(shè)備巡檢技術(shù)的要求越來越高。因此,需針對(duì)不同環(huán)境、設(shè)備以及精度要求構(gòu)建不同的圖像失真模型,為基于圖像的設(shè)備運(yùn)行狀態(tài)分析提供高質(zhì)量的真實(shí)圖像。下一步將對(duì)大型設(shè)備構(gòu)建相應(yīng)的失真校正模型,同時(shí)進(jìn)一步提高圖像校正后的精度。

(編輯:鄒海彬)

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