USE OF MODERN AUTOMATED GEODETIC DEVICES FOR MONITORING HYDROTECHNICAL CONSTRUCTIONS OF HYDRO POWER STATIONS
The article considers the experience of using automated geodetic devices in hydrotechnical construction displacement monitoring systems. The analysis of using modern GNSS receivers and high precision total stations showed that they provide the result of appropriate accuracy taking into account all factors influencing the measurement accuracy. It is recommended when choosing geodetic devices for monitoring not only to determine their metrological characteristics, but estimate errors of displacement detection in laboratory conditions and with the measurement results of the object under control. It is suggested to use GNSS receivers together with total stations in performing displacement measurements. It is recommended when designing such continuous displacement monitoring systems to provide the possibility to perform metrological calibration of geodetic devices without dismounting the system. It is noted that in performing industrial measurements and taking into account instrumental errors and errors, which appear due to meteorologic conditions changes, automated total stations provide measurement accuracy which is higher than declared.