Gyro measuring instrument being capable of automatically acquiring geographic latitude and automatically seeking north

Abstract

The invention discloses a gyro measuring instrument being capable of automatically acquiring a geographic latitude and automatically seeking north. The gyro measuring instrument comprises a centeringleveling system, a microcomputer system, a collimating system, a gyro system, and a precision angle measuring and a rotary system. When the instrument is in use, the gyro system measures a geographiclatitude of a to-be-measured point; the gyro system measures a by-north corner of the instrument; and then the collimating system collimates a target point accurately and measures a horizontal rotation angle to calculate a true north angle of a to-be-measured side. According to the invention, problems that the traditional gyro directional instrument cannot obtain the geographical latitude automatically and gyro orientation cannot be performed under the condition of having unknown latitude are solved. The instrument has advantages of high automation degree, simple operation, high orientation precision, strong adaptability of the instrument environment and high anti-interference ability and the like.

Description

technical field [0001] The invention belongs to the technical fields of geodesy, geodynamics and inertial navigation. It is aimed at the penetration measurement of large-scale projects such as ultra-long tunnels, mines, and urban subways in confined spaces, and can not be obtained by methods such as GPS / BDS during mobile warfare. Missile launch, weapon guidance, azimuth reference, navigation equipment calibration and other problems of geographic latitude parameters necessary for precise orientation, provide a gyro measuring instrument that independently obtains geographic latitude and automatically finds north. Background technique [0002] In terms of national construction, in the construction of large-scale projects such as ultra-long tunnels, mining, and urban subways, in order to ensure their accurate penetration, high-precision orientation and measurement work is required. However, due to the limited space in the tunnel, many high-precision measurement methods cannot be...

AI Technical Summary

Problems solved by technology

[0004] 1. In confined space or combat period, it is often impossible to know the geographic latitude of the point to be measured in advance, or the high-precision measurement method fails, and the geographic latitude of the point to be measured cannot be obtained. At this time, it is impossible to use traditional gyro orientation instruments. Orientation measurement

[0005] 2. Failure to meet the requirements of modern measurement for high automation and speed

[0006] 3. At present, the gyro total station widely used in the field of surveying and mapping has the disadvantages of poor instrument stability, poor environmental adaptability, and weak anti-interference ability. Requirements for the establishment of high-precision azimuth references in confined spaces

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