METHOD FOR NEUTRALIZING ERRORS IN MOVABLE GIMBALLESS INERTIAL GEODETIC SYSTEMS Russian patent published in 2020 - IPC G01C21/06 

FIELD: mining.

SUBSTANCE: invention is intended for determination of coordinates of points using movable strap down inertial geodetic systems (IGS) at insufficiency of initial geodetic base, absence of visibility of celestial bodies, absence of reception of signals of satellite radio navigation systems. Method neutralization errors movable strapdown IGS comprises determining via distance meter of axis length d_M dimensional plot, determination using the IGS: coordinate increments ΔX', ΔY' between initial and determined point; coordinate increments ΔX_M', ΔY_M' between initial and final points of measuring section, determination of directional angle α_M' axis of measuring section, determination of final directional angle α_K' route, as well as determination with the help of gyrocompass of final directional angle α_K route, axle length calculation d_M' dimensional section from data obtained from the GCI, d_M'=ΔX_M'/cos  α_M', or d_M'=ΔY_M'/sin  α_M', or d_M'=(ΔX_M'²+ΔY_M'²)^½; calculation of directing angle α' axis of route and length of axis d ' route from data obtained from the IGS by solving an inverse geodetic task, calculating the corrected length of the route axis d = d'(d_M/d_M'); calculation of corrected increments of coordinates between initial and final points of route ΔX=d cos(α'+αK−αK') and ΔY=d sin(α'+αK−αK').

EFFECT: technical result of application of method is expressed in determination of coordinates of points in conditions of independence; reduction of number of initial points required for method implementation to one; increasing the allowable length of the route between the initial point and the determined one.

1 cl, 1 dwg