A telescope guiding positioning correction method and device

By combining an accelerometer, a magnetometer, and a GPS module, the telescope automatically calculates the telescope tube deflection angle and controls the motor to turn towards bright celestial objects, solving the problem of time-consuming manual calibration and achieving fast and accurate telescope calibration.

CN115824252BActive Publication Date: 2026-04-07SUZHOU PRIEST OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202211285471.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-20
Publication Date
2026-04-07
Estimated Expiration
2042-10-20

AI Technical Summary

Technical Problem

In existing technologies, the process of manually guiding the equatorial mount to align with a bright celestial object via remote control is time-consuming and affects the user experience. This is especially true when calibrating the telescope's coordinate system, where the equatorial mount rotates slowly and the user needs to observe for a long time to confirm alignment.

Method used

Using an accelerometer, a magnetometer, and a GPS module, the telescope automatically calculates the deflection angle of the telescope tube relative to the magnetic south pole and the GPS coordinates of the equatorial mount. Combined with motor control, the telescope automatically turns towards bright celestial objects, and precise alignment is achieved through user fine-tuning.

Benefits of technology

It has enabled the automated calibration process of the telescope, shortened the calibration time, improved the user experience, and quickly and accurately calibrated the equatorial mount coordinates by combining automatic positioning and fine adjustment.

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Abstract

This invention provides a telescope guidance and positioning correction method and apparatus. The method includes: continuously acquiring the three-axis acceleration of the telescope in a static and stable state, calculating the horizontal motor tilt angle and the vertical motor tilt angle; acquiring three-axis magnetic sensor data, and calculating the deflection angle of the telescope tube relative to the magnetic south pole in combination with the three-axis acceleration data; acquiring the current GPS coordinates and time information of the telescope's equatorial mount; controlling the telescope motor to rotate to the corresponding deflection angle according to the deflection angle of a first bright celestial object relative to the telescope tube's orientation, thereby guiding the telescope to point at the first bright celestial object; the user fine-tunes the motor to ensure the telescope accurately locks onto the coordinates of the first bright celestial object; repeating the previous step to control the telescope motor to rotate and lock onto the coordinates of a second and third bright celestial object, thereby correcting the telescope's equatorial mount coordinates. This invention, based on acceleration, magnetic field sensors, and GPS combined with three-stage correction guidance, provides faster, more convenient, and more accurate telescope positioning.
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