Close-range photogrammetry auxiliary equipment capable of automatically adjusting distance

Abstract

The invention belongs to the field of close-range photogrammetry, and particularly relates to close-range photogrammetry auxiliary equipment capable of automatically adjusting a distance. The equipment is composed of a fixing mechanism, a supporting distance adjusting mechanism and an angle adjusting mechanism. The supporting distance adjusting mechanism can adjust the length of the main supporting rod through a control button of the handle and adjust the distance between the camera and a photographed target. When the angle adjusting mechanism works, the angle adjusting disc can be rotated to adjust the shooting angle of the camera in the horizontal direction, the motor drives the gear to rotate to drive the camera fixing frame to swing, finally, angle adjustment of the camera in the vertical direction is achieved, and the distance measuring radar can display the distance between the camera and a shooting target in real time; when the distance is proper, the buzzer sounds to prompt that the distance is proper. Scales on the angle adjusting disc and the vertical angle adjusting plate can accurately display the specific adjusting angle of the camera. The working intensity of shooting personnel during shooting is reduced, and the influence of subjective factors on an adjustment result when the shooting personnel frequently adjust the angle and the distance is reduced.

Description

technical field [0001] The invention belongs to the field of close-range photogrammetry, in particular to an automatic distance-adjustable close-range photogrammetry auxiliary device. Background technique [0002] In recent years, close-range photogrammetry has been increasingly used in industry and experiments. The close-range photogrammetry camera is a SLR camera. After taking the first photo in a good position, you must fix the focal length, and then shoot from different angles, keeping the focal length constant. Because the focal length is fixed, you must ensure that the distance between the camera and the shooting target is consistent every time you continue shooting, otherwise the photos you take are not clear and may not be usable. It takes a long time to adjust the distance when shooting with a hand-held camera, and the distance adjustment effect is easily affected by human subjective factors. If a photogrammetry auxiliary equipment is designed to use ultrasonic ra...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned deficiencies mentioned in the background technology, the purpose of the present invention is to provide a close-range photogrammetry auxiliary equipment that can automatically adjust the distance, which uses the ultrasonic principle to automatically measure the distance, and solves the problem of slow speed of distance adjustment in the existing close-up photogrammetry. Technical problem of poor distance adjustment effect

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