Level i angle monitoring device

Abstract

The invention discloses an i-angle monitoring device for a level gauge. According to the i-angle monitoring device, the leveling precision, reliability and efficiency can be improved. The i-angle monitoring device is provided with a level gauge collimation axis gesture signal sensor and a horizontal sightline automatic compensator pendulum mass displacement signal sensor which are connected with a data processing controller (8), wherein an output of the data processing controller (8) is connected with a warning device (10) through a warning driving circuit (9), and the horizontal sightline automatic compensator pendulum mass displacement signal sensor can be a first light source (1) and a first image collecting device (2) which are arranged on the opposite surface of a horizontal sightline automatic compensator pendulum mass.

Description

technical field [0001] The invention relates to a leveling device in the field of geodetic surveying and engineering surveying, in particular to a leveling instrument i-angle monitoring device which can improve the accuracy, reliability and efficiency of leveling measurement. Background technique [0002] A traditional level measuring device is composed of a level and two leveling rods. The level is composed of an objective lens, a focusing lens, an automatic horizontal sight compensator, a beam splitter, a crosshair reticle, an eyepiece, an electronic readout device and a display and control terminal. When measuring, first place the two leveling rods vertically at the two points A and B on the ground, and then set the level at the middle position of the two points A and B, and use the leveling telescope to collimate the axis (that is, the intersection point of the crosshair and the The line of sight provided by the optical center of the objective lens) respectively aim at ...

AI Technical Summary

Problems solved by technology

[0003] Since the size of the i angle directly affects the accuracy, stability and reliability of the leveling measurement, the following measures are usually taken to ensure the accuracy of the leveling measurement: (1) the i angle needs to be measured and adjusted before the leveling measurement every day, so that the i angle of the level Less than the level tolerance (for example, Chinese standard: first and second level measurement i angle tolerance is 15 seconds; third and fourth level measurement i angle tolerance is 20 seconds); (2) when measuring, keep the level at two The horizontal distances of the leveling rods are equal or roughly equal to eliminate or weaken the influence of the i angle, but the existing measures have the problems of low measurement efficiency and low measurement accuracy

Measuring and adjusting the i angle before leveling every day often consumes a lot of energy and time of the surveyors, and the measurement work efficiency is low; the change of the i angle cannot be found in time during the daily leveling process, resulting in a decrease in the accuracy of the measurement results; if it is found that the measurement The accuracy is low and to ensure the measurement accuracy, we can only abandon the measured results, re-measure and adjust the i angle, and then re-measure the level from the starting point to the end point, which reduces the measurement work efficiency

In fact, real-time dynamic monitoring of the change of i-angle is a major problem in the field of human leveling, and it is also a major technical obstacle restricting intelligent leveling

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