Non-parametric model calibration method and calibration device for linear structure laser surface

Abstract

The invention discloses a linear structure laser surface non-parametric model calibration device suitable for a rotary laser measurement positioning system and a calibration method thereof. The linear structure laser surface non-parametric model calibration device comprises a precise two-axis turntable and a marble platform, and a high-precision adjustable base and a laser emitting device are sequentially and fixedly arranged on the precision two-axis turntable from bottom to top; the laser emitting device comprises a constant-speed rotating platform and one or more linear structure lasers, and a photoelectric signal receiving device and a signal processing device are fixed on the marble platform; and the height of the high-precision adjustable base is adjusted, so that the original point of the laser emitting device basically coincides with the original point of the precise two-axis turntable. According to the invention, the standard data mapping table of the laser surface to be calibrated is obtained by establishing the direct mapping of the laser surface rotation time and the space standard angle, the difficulty that the laser surface profile is difficult to fit by adopting an accurate parameter model is overcome, and the method has important significance for the development of a multi-base-station space measurement positioning system.

Description

technical field [0001] The invention relates to a multi-base station space measurement and positioning system, in particular to a non-parametric model calibration method and a calibration device for a line-structured laser surface of a rotating laser measurement and positioning system. Background technique [0002] The rotating laser measurement and positioning system is a space three-dimensional coordinate measurement and positioning system based on the principle of smooth surface intersection, which has been maturely used in aerospace, aviation, shipbuilding and virtual reality and other fields. The measurement and positioning system is mainly composed of a line-structure laser surface emitting device, a photoelectric signal receiving device, and a computing and processing device. The transmitting device is arranged in multiple places in the measurement and positioning space, and cooperates with the corresponding receiving device to perform positioning and measurement of th...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low precision in the application of the laser surface parametric model and calibration technology of the launch device of the existing rotating laser measurement and positioning system, to get rid of the limitation of establishing a complex parameter model to fit the laser surface shape, and to provide a A non-parametric model calibration method and its calibration device for a line-structured laser surface establish a direct mapping of the laser surface rotation time-space standard angle, which breaks through the limitation of the parametric model on the calibration effect, has good feasibility and low cost, and can effectively improve the line structure. Difficulty in Calibration of Structured Laser Surface Parameters

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