Portable axis two-dimensional deflection angle measuring device and method

Abstract

The invention provides a portable axis deflection angle measuring device which comprises an optical system, a light source structure, an image sensor, an embedded processing circuit and an inertial navigation assembly, wherein the optical system is fixed on the inertial navigation assembly, the middle position of the side surface of the optical system is fixedly connected with the light source structure, and the rear end of the optical system is fixedly connected with the image sensor and the embedded processing circuit; and the light source structure emits a light beam from the front of the optical system, the light beam is projected to a plane mirror perpendicular to the measured axis, the reflected light beam passes the optical system again and is imaged on the image sensor, the image sensor sends detected gray data and angle data of the inertial navigation assembly to the embedded processing circuit for data processing, and two-dimensional deflection angle information of the measured axis is obtained. According to the invention, dynamic real-time measurement can be realized, and the problems that other equipment cannot carry out dynamic measurement and the measurement precision is low are solved. The device is simple in structure and can be produced in batches.

Description

technical field [0001] The invention relates to the field of photoelectric measurement technology, in particular to a portable two-dimensional deviation angle measuring device and method thereof. Background technique [0002] There are mainly the following methods about the two-dimensional axis declination measurement: 1) Angle transfer measurement method based on theodolite: multiple theodolites are used to aim at the axis to be measured respectively, and the angle transfer measurement is completed through the interaction between theodolites. Decide. 2) Measurement method based on inertial navigation equipment: In some special fields, real-time measurement of specific axis orientation is required, and precision inertial navigation is often used for real-time measurement of axis direction. 3) Based on the photogrammetry method: this method first marks the points to be measured, images each mark point by photography, calculates the spatial position coordinates of each mark p...

AI Technical Summary

Problems solved by technology

[0004]1) Dynamic real-time measurement cannot be performed;

[0005]For example, the angle transmission method of theodolite has the advantage of high measurement accuracy, but manual aiming measurement is required. Even if the servo tracking method is used, real-time dynamic measurement cannot be carried out

Using the inertial navigation equipment measurement method, although it can be measured for a specific axis, it must be fixed on the backup axis, and the measurement object cannot be dynamically replaced for real-time measurement

Although photogrammetry can solve real-time measurement, it still needs to be fixed on the base, and it will be affected by conditions such as the base is not level

[0006]2) The measuring equipment is complex in structure and large in size, making it difficult to realize the application of small embedded equipment;

Whether using theodolite measurement or photogrammetry, the measurement platform is limited by the environment, the equipment is large in size, the measurement process is complicated, and hand-held measurement cannot be realized.

[0008]3) Low integration and high cost, which is not conducive to mass production;

[0009] Most of the existing measurement methods use professional measuring instruments, such as theodolite, photogrammetry, etc., which cannot realize integrated design and are customized as professional instruments, so the measurement cost is relatively high , and is not conducive to mass production

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