IMPLEMENTATION OF PROXIMITY SENSORS IN DETERMINING TREE HEIGHT AND DISTANCE FOR MEASUREMENT OF FREE SPACE DISTANCES IN HIGH VOLTAGE LINES

Abstract

The Regulation of Minister of Energy and Mineral Resources Number 02 Year 2019 concerning Minimum Free Distance and Free Space of High Voltage Air Channel, Extra High Voltage Air Channel, and High Voltage Air Channel of Direct Current for Electrical Power Distribution has specific regulation related to free distances toward High Voltage Air Channel and Extra High Voltage Air. Voltage 150kV has minimum free distance 5m in which stand inspection below transmission channel path has encountered several objects disrupting electricity distribution. For this reason, the researcher developed an application for measuring distance by lidar sensor and android smartphone supported with gyroscope features. All of them were then processed through trigonometry formula for obtaining the measurement value. The results of measurement test on tree height (C) within maximum distance 12 meters gained difference span:  30 degrees from 0.02 to 2.99m, 45 degrees from 0.007 to 10.25, and 60 degrees from 2.29 to 15.33m. Meanwhile, distance measurement (B) from user to tree within maximum distance 12 meters had difference span: 30 degrees from 0.17 to 4.97m, 45 degrees from 0.13 to 9.85m, 60 degree from 1.31 to 8.99m, and thus the span error was 0.381-0.803.