Development of a helicopter-mounted eye-safe laser radar system for distance measurement between power transmission lines and nearby trees

被引:32
|
作者
Ashidate, S [1 ]
Murashima, S
Fujii, N
机构
[1] Tokyo Elect Power Co Ltd, Power Elect Dept, Power Engn Res & Dev Ctr, Yokohama, Kanagawa, Japan
[2] NEC Corp Ltd, Laser Engn Dept, Guidance & Electroopt Div, Tokyo, Japan
[3] Asia Air Survey Co Ltd, GIS Ctr, Power Consulting Engn Grp, Tokyo, Japan
关键词
clearance; eye-safe laser; laser radar;
D O I
10.1109/61.997953
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An on-board eye-safe laser radar system capable of measuring the distance between high voltage power transmission lines and nearby trees has been developed. An eye-safe laser operating at 1.572 mum wavelength was used for the safety of the human cornea. The system can be mounted on the helicopter for general-patrol surveys as it is compact, lightweight, and consumes low power. Clearance on the opposite side of the flight position can also be measured. This system can be applied to all voltage level transmission lines from 66 kV to 500 kV. Clearance accuracy below +/- 93 cm was obtained in our practical power transmission lines. Software running on personal computers was also developed to simulate the expected minimum clearance at field offices.
引用
收藏
页码:644 / 648
页数:5
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