SYSTEM FOR FINDING COORDINATES OF TRACK AND COORDINATES OF DEFECTS OF UNDERGROUND PIPELINE Russian patent published in 2005 - IPC

FIELD: test equipment.

SUBSTANCE: system for finding coordinates of track and coordinates of defects of underground pipeline has navigation satellites and starting chamber marker. The latter has navigation receiver, processing and mating units, data storage, receiving chamber marker and track marker connected in series. Mentioned markers have marker receiver and navigation receiver connected in series with processing and mating unit, data storage and intra-pipe inspection tool. The latter has flaw detection module, synchronized reference generator, marker transmitter, route detector, computational and control unit, registrar, angular speed three-component meter, three-component accelerator and longitudinal accelerator, on-ground subsystem. Before making starting intra-tube inspection tool started, its sync reference generator is synchronized with time scale of satellite radar system. Data from flaw detector module is recorded into data registrar by means of intra-tube inspection tool, as well as in registrar of three-component angular speed meter, three-component accelerometer, longitudinal accelerometer, route detector, temperature detector and current time detector. Radar parameters and current time are recorded in marker of starting chamber. Radar parameters, time of passing of inspection tool and current time are recorded route markers and marker of starting chamber. Coordinate of pipeline and coordinates of flaws are calculated in on-ground subsystem on the base of stored data.

EFFECT: improved precision of coordinate finding.

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