BASIC STUDY OF AN INSPECTION RECORD SYSTEM FOR CABLE-STAYED BRIDGE CABLE INSPECTION ROBOT

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  • 斜張橋ケーブル点検ロボットにおける点検記録システムの基礎研究

Abstract

 Inspection method of cable-stayed bridge cables is largely divided into two ways. The first way is the visual inspection using aerial work platforms. The second way is the inspection using climbing techniques. In the case of the aerial work platforms, the height from the bridge surface is limited to about 30m. In addition, traffic regulations is required. Visual inspection using a climbing technique is difficult to ensure the safety of inspector. To overcome the above problems, the authors have developed an automatic inspection robot for the cables of cable-stayed bridges. In the study, the authors developed an inspection record system for the robot. The system enables the record of the cable surface. Concretely, the system takes continuously scanned images of cable surface by using USB cameras, mini PC, and lighting devices. Then, the system generates panoramic images of cable surface. Furthermore, application to the tube which imitated the cable is presented so as to demonstrate the accuracy of panoramic image.

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