DEVICE AND METHOD FOR DETERMINING POSITION OF PIPELINE

The invention relates to measurement technology and can be used for determining the position of a pipeline in space. A device consists of a hardware portion and of a software portion; in the hardware portion, each of three gyroscopes and accelerometers of a strapdown inertial navigation system is co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GURIN, SERGEI FEDOROVICH, MIROSHNIK, ALEKSANDR DMITRIEVICH, KIRYANOV, MAKSIM YURYEVICH, ORLOV, VYACHESLAV VIKTOROVICH
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GYROSCOPIC INSTRUMENTS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS MECHANICAL ENGINEERING NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PIPE-LINE SYSTEMS PIPE-LINES PIPES STORING OF DISTRIBUTING GASES OR LIQUIDS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING SURVEYING TESTING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to measurement technology and can be used for determining the position of a pipeline in space. A device consists of a hardware portion and of a software portion; in the hardware portion, each of three gyroscopes and accelerometers of a strapdown inertial navigation system is connected to one orthogonal axis of an in-pipe inspection device. The software portion consists of algorithms for determining navigation parameters using a global satellite navigation system (GPS or/and GLONASS). Data are transcribed from the software portion and a calculation of navigation parameters is carried out on a computer using a special program. A method for determining the relative displacement of a pipeline consists in using data regarding measurements of the magnitudes and directions of linear displacements of a section of a pipeline, which data is based on the results of passing an in-pipe inspection device, having a hardware portion installed thereon, two or more times along the same section of a pipeline. The obtained data is arranged in tables and combined according to distance. The criterion for the existence of a pipeline displacement in an inspected site involves a curvature differential module exceeding a predetermined threshold value.