Nonparametric Model Calibration Method and Calibration Device for Line Structured Laser Surface

Abstract

The invention discloses a line-structured laser surface non-parametric model calibration device and a calibration method suitable for a rotating laser measurement and positioning system, including a precision two-axis turntable and a marble platform; the precision two-axis turntable is fixed sequentially from bottom to top It has a high-precision adjustable base and a laser emitting device; the laser emitting device includes a uniform rotating platform and one or more line-structured lasers, and a photoelectric signal receiving device and a signal processing device are fixed on the marble platform; by adjusting the The height of the high-precision adjustable base makes the origin of the laser emitting device basically coincide with the origin of the precision two-axis turntable. The invention obtains the standard data mapping table of the laser surface to be calibrated by establishing the direct mapping between the rotation time of the laser surface and the standard angle of space, overcomes the difficulty that the laser surface type is difficult to fit with an accurate parameter model, and can measure and position multiple base stations in space The development of the system is of great significance.

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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