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Level i angle monitoring device

A leveling instrument and leveling technology, applied in the direction of hydrostatic pressure, etc., can solve the problems of consuming energy and time of surveyors, low measurement accuracy, and reduced accuracy of measurement results, so as to improve operation accuracy and work efficiency, improve the level of intelligence, and ensure The effect of measurement accuracy

Active Publication Date: 2019-02-12
DALIAN SENBIOR SURVEYING INSTR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The block diagram of the circuit is as figure 1 Shown: the leveling instrument collimation axis attitude signal sensor and the horizontal line of sight automatic compensator free pendulum body displacement signal sensor are provided, the output of the leveling instrument line of sight attitude signal sensor and the level line of sight automatic compensator free pendulum body displacement signal sensor are all consistent with The data processing is connected with the controller 8 , and the output of the data processing and the controller 8 is connected with the alarm device 10 through the alarm driving circuit 9 . The specific structure is as image 3 As shown: there is a casing 11 with an opening, and the horizontal line of sight automatic compensator free swing body composed of the first light source 1 (LED) and the first image acquisition device 2 (CCD) is fixed on the opening side of the casing 11 For the displacement signal sensor, a tubular vial 3 is fixed at othe...

Embodiment 2

[0025] Such as Figure 7 Shown: the structure is basically the same as that of embodiment 1, the difference is that the attitude signal sensor of the collimation axis of the leveling instrument adopts the existing electronic level bubble (resistive, capacitive, inductive and photoelectric) 6, which is installed on the leveling instrument, the first An image acquisition device 2 is connected with the output of the electronic vial 6 and the data processing and controller 8 .

[0026] Use working process with embodiment 1.

Embodiment 3

[0028] Such as Figure 8 As shown: the structure is basically the same as that of Embodiment 1, the difference is that the attitude signal sensor of the collimation axis of the leveling instrument adopts the existing inclination sensor 7, such as the MEMS high-precision inclination sensor (SCA103T-D04 of Finland VTI Company), etc., and is installed horizontally on the On the leveling instrument, the output of the first image acquisition device 2 and the inclination sensor 7 is connected with the data processing and controller 8 . When the inclination sensor is in a static state, the output value is the voltage value converted from the components of the gravitational acceleration g in each direction. When the angle of the level changes, the components of the gravitational acceleration g in each direction change, so that the output voltage value changes, that is The sensor signal of the horizontal state of the collimation axis of the leveling instrument.

[0029] Use working pr...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/04
CPCG01C5/04
Inventor 刘雁春王海亭孟强刘尧吴祥华
Owner DALIAN SENBIOR SURVEYING INSTR TECH CO LTD
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