The article deals with issues of creation of high precision mine surveying networks. They can be used for the building and equipment installation. Also there is a method of joint adjustment of satellite, geodetic and mine surveying measurements.. To solve this problem, we propose a mathematical apparatus for converting measurements into a local rectangular coordinate system. The joint system of linear equations of satellite and geodetic measurements is solved by the method of least squares by the method of conjugate gradients in a special software package. The complex has the ability to strictly precomputation the accuracy of mixed networks, taking into account all the geometric conditions that arise in the network. The articles shows the design technique of mine surveying base network for cable-belt conveyor, its precision estimation depending on methods and equipments for geodetic measurements.
В статье показаны возможности использования онлайн-сервисов при обработке измерений глобальных навигационных спутниковых систем (ГНСС-измерений), описаны их достоинства и недостатки. Приведены результаты оценки точности высокоточного местоопределения пунктов сети ПДБС НСО различными онлайн-сервисами. Выполнено сравнение результатов обработки ГНСС-измерений онлайн-сервисами с методом классической обработки и методом отдельной обработки в программном обеспечении Trimble Business Centre v.4.0. Показано, что результаты четырех из шести сервисов согласуются с эталонными значениями координат на уровне, не превышающем 2,5 см, а также превосходят по точности результаты, полученные методом отдельной обработки ГНСС-измерений. Полученные в результате эксперимента скорости смещений пунктов сети ПДБС НСО сопоставлены с общемировыми моделями движения точек земной поверхности. Также онлайн-сервисы оценены по результатам ГНСС-измерений, выполненных в других частях земного шара.Ключевые слова: ГНСС-измерения, онлайн-сервис, постобработка, Trimble Business Centre, метод PPP, высокоточное местоопределение. ВведениеДля определения местоположения пунктов в общеземной системе координат можно использовать следующие методы с применением технологий глобальных навигационных спутниковых систем (ГНСС): абсолютный, относительный и дифференциальный [1]. С развитием ГНСС-технологий повышается уровень точности определения координат пункта, который зависит не только от методов определения местоположения, но и от режима обработки ГНССизмерений [2]. Наиболее точным режимом измерений является постобработка, поскольку здесь может использоваться большое количество дополнительной информации (вычисленные точные эфемериды спутников, применение моделей тропосферной и ионосферной задержек, параметры вращения Земли и пр.) [1, 2].Программное обеспечение (ПО) для обработки ГНСС-измерений может реализовывать различные методы обработки, среди них: вычисление базовых линий (относительный) [3];Получено 30.03.2019The advantages of usage of free online GNSS post-processing services are shown. Advantages and disadvantages are described. The results of assessing the accuracy of high-precision positioning by free online services are given on the example of observations of Novosibirsk region reference stations network. The results obtained with using free online post-processing services were compared with the results obtained with using conventional and other positioning methods processed with TBC v.4.0 software. It is shown that the results of 4 out of 6 services are consistent with the reference values of the coordinates at the 2.5 centimeters level and have advantages over the method of separate measurement processing. As a result of the experiment the reference stations network velocities of Novosibirsk region, that after were compared with the results of global models of the earth's surface movement are revealed. These online services are estimated by the results of GNSS measurements performed in other parts of the globe.
Information technology and modeling are becoming more widely used, mainly in the design and operation of buildings and structures, and in most cases this is enough for trouble-free operation. Nev-ertheless, there is a category of buildings for which the monitoring of the technical condition should be an integral part of the construction and operation. Unfortunately, the development of these technolo-gies in the Russian Federation is not at level, sufficient for answering questions about the behavior of objects under changing environmental conditions and revealing hidden patterns in monitoring data. Based on analysis of literary sources, the authors reviewed various methods for identifying hidden patterns in geodetic measurement data when monitoring buildings and structures. It is noted that mod-ern analysis methods are based on statistical processing of measurement results and on statistical fore-casting method. However, there are attempts to apply models that take into account object’s design features and temperature regime. This type includes two proposed models, which are used to model three-dimensional coordinates of strain marks in the 3D model and only elevations of marks in the 1–Z model. The article presents the rationale for the simulated geometric elements and properties of the object. The solution of the equations of both models and the analysis of the results and parameters of the model for measurement epochs are shown. The simulation is shown on the example of a real ob-ject, which was monitored by the authors in 2015–2016.The authors believe that the monitoring of large-span structures and the search for patterns of their behavior should be an integral part of the in-formation system for such structures.
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