Intermediate standard device and scanner automatic calibration system

By designing the annular recognition area and recognition head of the intermediate standard, the problem of positional limitations in the scanner calibration process is solved, achieving higher calibration accuracy and flexibility, and making it suitable for automated field applications.

CN224455695UActive Publication Date: 2026-07-03SCANTECH (HANGZHOU) CO LTD
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Patent Information

Application Number
CN202521708025.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2026-07-03
Estimated Expiration
2035-08-12

AI Technical Summary

Technical Problem

In existing scanner calibration processes, the relative positions of the tracker and the scanner are quite limited, and the automated field environment is not fixed, resulting in insufficient flexibility and applicability of the calibration process.

Method used

An intermediate standard was designed, including an annular recognition area and a recognition head. The annular recognition area is composed of several adhesive surfaces and is set on the main body for recognition by scanners and trackers. The recognition head protrudes from the main body and is equipped with marking points. The annular recognition area and the recognition head are flexibly distributed, reducing the limitation on the position.

Benefits of technology

It increases the flexibility of scanner and tracker placement, expands the calibration area, improves calibration accuracy and applicability, and enhances the flexibility and accuracy of automated calibration.

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Abstract

The utility model discloses an intermediate standard device and an automatic scanner calibration system. The intermediate standard device is applied to three-dimensional scanner calibration. The middle standard device comprises a main body and an identification head; an annular identification area is arranged on the main body; a plurality of identification mark points are arranged in the annular identification area and are used for being identified by a scanner located above the main body and a tracker located at any point position on the peripheral side of the main body; a plurality of identification heads are arranged on the main body and protrude out of the main body in the height direction; a plurality of identification mark points are arranged on the outer surface of each identification head, and the tracker can identify part of mark points on the identification heads at any point position on the peripheral side of the main body. Through the design of the annular identification area and the identification head, the limitation on the arrangement positions of the tracker and the scanner in the calibration process is reduced, so that the formulation of the automatic calibration process is more flexible, and the applicability and universality of the intermediate meter fixing device and the calibration system are improved.
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