Surveying device

The surveying device addresses the slow detection time issue by incorporating a distance measuring section and detection light system with a wider spread angle, enhancing detection speed and accuracy.

JP2025006183APending Publication Date: 2025-01-17TOPCON CORPORATION
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Patent Information

Application Number
JP2023106823
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-29
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

Existing surveying devices require a long time to detect objects due to the small angle of view and slow tracking of the tracking light.

Method used

A surveying device with a distance measuring section that includes a light emitting and receiving element, a rotating section, and a detection light system with a wider spread angle, allowing for faster detection by expanding the irradiation range of detection light.

Benefits of technology

The device significantly reduces the time required to detect objects by enhancing the detection light's spread angle, improving work efficiency and accuracy.

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Abstract

To provide a surveying device that shortens a time for detecting an object to be measured.SOLUTION: The surveying device comprises: a distance measurement portion 19 having a light-emitting element 33 that emits distance measurement light 34 and a light-receiving element 43 that receives reflected distance measurement light 49; a rotation portion 20 that emits the distance measurement light; a vertical rotation drive portion that rotates the rotation portion in a vertical direction; a support frame portion 5 that is provided with the rotation portion; a horizontal rotation drive portion that rotates the support frame portion in a horizontal direction; a detection portion 21 that has a detection light reception portion having a detection light-receiving element for receiving reflected detection light reflected by an object to be measured and that emits detection light having a wavelength different from that of the distance measurement light toward the rotation portion; and a calculation control portion that calculates the distance to the object to be measured on the basis of a light reception result of the reflected distance measurement light to the light-receiving element and calculates a direction of the object to be measured on the basis of a light reception result of the reflected detection light. The rotation portion has a detection light separation optical member, and the detection light is configured to be emitted by rotation of the rotation portion in a range equal to or greater than a spread angle of the detection light.SELECTED DRAWING: Figure 3
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Citation Information

Patent Citations

  • Light wave distance-measuring device

    JP2017110964A