| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of inspecting a steel tower for communication by which operations can be performed with certainty without omission, change of state can be confirmed with high accuracy, cost can be reduced, and work efficiency can be improved by shortening an operation time and simplifying the operations. <P>SOLUTION: A method of inspecting change of state generated at steel towers 1, 21 for communication, includes the following steps of: photographing an inspection range with photographing devices 4, which are installed at a plurality of outer peripheral installation positions P1, P3 at intervals in a circumferential direction on an outer peripheral side of the steel towers 1, 2 for communication on a ground 2, in a state that the photographing devices 4 are made swivel and be directed toward the inspection range of the steel towers 1, 21 for communication; recording images obtained by photographing; and observing the change of state of the steel towers 1, 21 for communication based on the recorded images. <P>COPYRIGHT: (C)2013,JPO&INPIT |
