钻、修井井架高空检测的现状及存在的技术问题

在钻、修井石油井架都是比较复杂的大型金属钢架的结构，对油田和石油的生产有着很重要的作用。本文介绍了钻、修井井架高空检测的现状和其技术存在的问题，并且提出了对钻、修井井架高空检测的工作建议。

无人飞机在广西桥梁检测中的应用发展

针对目前传统的公路桥梁检测手段的局限性,创新性地引入无人机检测理念,将无人机技术、计算机技术、航空摄影技术、互联网技术结合起来,提出一种全新的公路桥梁检测思路,该方法可广泛应用于广西公路桥梁检测中,有效提高了广西公路桥梁检测效率、缩短检测周期、节省工程检测费用,并可向全区工程检测其他领域拓展。

基于自动爬壁机器人的风机塔筒焊缝TOFD检测技术研究

针对风机塔筒焊缝这类高空及超高空检测环境,目前没有较好、安全的检测手段。本文设计了一种基于自动爬壁机器人的风机塔筒焊缝TOFD检测技术,利用超声TOFD技术替代常规超声焊缝检测,对精细缺陷特征检测并成像,更利于缺陷分析。利用自动爬行机构,减少人员爬高风险,且行走可控,耦合稳定。检测系统在软件呈现上和当前接轨,对应现有各类自动化超声检测标准,大大提高了检测效率,降低了人员危险性和劳动强度。

Review of Shadow Detection and De-shadowing Methods in Remote Sensing

Shadow is one of the major problems in remotely sensed imagery which hampers the accuracy of information extraction and change detection.In these images,shadow is generally produced by different objects,namely,cloud,mountain and urban materials.The shadow correction process consists of two steps:detection and de-shadowing.This paper reviews a range of techniques for both steps,focusing on urban regions(urban shadows),mountainous areas(topographic shadow),cloud shadows and composite shadows.Several issues including the problems and the advantages of those algorithms are discussed.In recent years,thresholding and recovery techniques have become important for shadow detection and de-shadowing,respectively.Research on shadow correction is still an important topic,particularly for urban regions(in high spatial resolution data) and mountainous forest(in high and medium spatial resolution data).Moreover,new algorithms are needed for shadow correction,especially given the advent of new satellite images.

输电线路瓷质绝缘子停电登塔零值检测技术

基于停电运行中的瓷质绝缘子检测一般都采用测量零值检测的方法,阐述瓷质绝缘子停电登塔零值检测技术,并研制、开发了便携式零值绝缘子检测仪。