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Line type monitoring device and monitoring method for internal appearance and external appearance of dam

A technology for monitoring devices and dams, which can be used in measurement devices, optical devices, surveying and navigation, etc., and can solve problems such as fiber optic gyroscope white noise.

Active Publication Date: 2019-10-11
江西省水利厅工程建设稽察事务中心 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The second object of the present invention is to provide a line monitoring method for the interior and appearance of the dam, which can reduce the influence of the zero drift instability of the optical fiber gyroscope caused by temperature, running time, etc. on the results, and solve the problem of The fiber optic gyro has the deficiency of white noise, which can improve the accuracy of dam panel deflection or dam settlement monitoring

Method used

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  • Line type monitoring device and monitoring method for internal appearance and external appearance of dam
  • Line type monitoring device and monitoring method for internal appearance and external appearance of dam
  • Line type monitoring device and monitoring method for internal appearance and external appearance of dam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] like figure 1 and Figure 4 , a line-type monitoring device for the inner and outer appearance of a dam. The measuring instrument 1 runs at a constant speed in the preset measuring track 3 on the surface of the dam 2 to be measured, driven by a constant-speed winch 4 . Pause, and then return to the top from the bottom to pause at t positions for a short time Δt (2s~10s); Figure 11 , the measuring instrument 1 is equipped with a DSP processor 5, a single-axis fiber optic gyroscope 6 for the X-axis of the sensitive carrier, and a one-way attitude measuring instrument 7 for the Y-axis of the sensitive carrier; Figure 5 , be provided with uniform speed hoist support 40, motor 41, belt 42, small power motor 43, small belt 44, protective cover 45, spool 46, belt adjuster 47, small belt rope row device 48 in the uniform speed hoist 4.

[0060] like Figure 15 , when the measuring instrument 1 is running on the surface of the measured dam 2, the measuring instrument bracke...

Embodiment 2

[0074] like figure 2 , a line type monitoring device for the inner view of a dam. The measuring instrument 1 is equipped with a three-axis fiber optic gyroscope 6 and a three-axis attitude measuring instrument 7. The measuring instrument 1 is preset inside the dam 2 to be measured with a slope ≥ 10°. In the measurement track 3, under the action of the counterweight, it moves from the top to the bottom without artificial pause in the middle. When measuring the bottom of the track 3, the measuring instrument 1 is blocked by two elastic bottom top plates 31 on the bottom baffle 32, as Figure 13 and Figure 14 , between the connecting pipes 34 of two adjacent measuring tracks 3, and between the connecting pipes 34 of the measuring track 3 and the bottom baffle 32, a recessed ring 304 for placing the waterproof ring 30 is provided, and two adjacent measuring tracks 3 between the connecting pipe 34, the bottom baffle 32 and the connecting pipe 34 of the measuring track 3 are all...

Embodiment 3

[0093] like image 3 , a line type monitoring device for the inner view of a dam, a three-axis fiber optic gyroscope 6 and a three-axis attitude measuring instrument 7 are arranged in the measuring instrument 1, and the measuring instrument 1 is preset at a low slope inside the measured dam 2 (the slope is less than 10°) or in the horizontal measuring track 3, especially when measuring the settlement of the dam, under the joint action of the upper ordinary winch 49 and the lower constant speed winch 4, first the measuring instrument 1 moves from the top of the measuring track 3 to the bottom, and the middle does not Man-made pause, during which the common hoist 49 of the upper position is manually taken up, and the lower uniform hoist 4 is set out by the wire spool 46, and the small power motor 43 is not working. into the motor runner 413 to make its inner diameter D 1 'Increase, at the same time, the adjuster transverse axis 471 of the belt adjuster 47 adjusts the belt 42 up...

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Abstract

The invention discloses a line type monitoring device and monitoring method for internal appearance and external appearance of a dam. By arranging a measuring rail in advance on the surface of a dam panel or inside a dam body, a measuring instrument operates at a uniform speed in the measuring rail; and a measuring system comprises a uniform speed hoist, the measuring instrument, the measuring rail, a DSP processor, a power line and the like. According to the invention, the T-shaped measuring rail is mounted on the surface of the dam so as to implement line type monitoring on the external appearance of the dam; the measuring instrument is assisted by the uniform speed hoist in operating at the uniform speed in the measuring rail arranged in advance, so that a measurement error is reduced;a deviation between an attitude angle of an optical fiber gyroscope strapdown update matrix and an attitude angle of an attitude measuring instrument is optimized, and a zero drift is subjected to distinguishing compensation, so that monitoring accuracy can be improved; and by designing a waterproof ring, waterproofness of the monitoring device is reinforced. The line type monitoring device and monitoring method are applicable to continuous measurement on surface and internal deformations of the dam and particularly continuous measurement on panel deflection and sedimentation and horizontal displacement inside the dam.

Description

technical field [0001] The invention relates to the fields of construction engineering and dam measuring devices, in particular to a line-type monitoring device for the inner and outer appearance of a dam and a monitoring method thereof. Background technique [0002] In engineering monitoring, there are several monitoring methods such as point monitoring, line monitoring, plane measurement and three-dimensional measurement, among which the basis of plane measurement and three-dimensional measurement is point monitoring and line monitoring. The point-type monitoring is typically based on the water pipe-type sedimentation instrument to monitor the settlement, and the line-type monitoring is based on the optical fiber temperature measurement as an example, which can monitor all the measured values ​​along the line. [0003] In engineering monitoring, some points on the line are often used to replace the measured value of the entire line, but local changes on the line are ignore...

Claims

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Application Information

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IPC IPC(8): G01C5/00G01B11/02G01B11/16G01C21/16
CPCG01B11/02G01B11/161G01C5/00G01C21/16
Inventor 黎佛林廖铖徐富刚
Owner 江西省水利厅工程建设稽察事务中心
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