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Method and system for measuring displacement through coordinate change between adjacent monitoring points

A technology of relative coordinate system and monitoring point, applied in the direction of measurement device, infrastructure test, instrument, etc., can solve the problems of large measurement workload, low measurement accuracy, and multiple labor costs, so as to reduce measurement workload and improve monitoring. Accuracy, the effect of reducing errors

Active Publication Date: 2020-07-28
四川合众精准科技有限公司
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Problems solved by technology

[0003] (1) Affected by the experience of the operator, the manual error measured by different operators is different, which makes the measurement accuracy lower;
[0004] (2) It cannot be measured in real time, and manual observation and recording are required for each measurement, which makes the measurement work more difficult and requires more labor costs for monitoring;
[0005] (3) It is necessary to measure each monitoring point, which makes the measurement workload heavy

Method used

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  • Method and system for measuring displacement through coordinate change between adjacent monitoring points
  • Method and system for measuring displacement through coordinate change between adjacent monitoring points
  • Method and system for measuring displacement through coordinate change between adjacent monitoring points

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Embodiment Construction

[0043] The technical solution of the present invention will be further described in detail below in conjunction with specific examples, but the protection scope of the present invention is not limited to the following description.

[0044] Such as figure 2 As shown, step S1: coordinate system definition;

[0045] Define the monitoring coordinates as the absolute coordinate system (X, Y), and the monitored foundation pit is located in the absolute coordinate system (X, Y);

[0046] Define the relative coordinate system (x, y) in the absolute coordinate system, select the monitoring points at the two corners on one side of the foundation pit as the working base points A0 and An, and the line connecting A0 to An is the straight line kX+bY+c=0, Take A0 as the origin, the straight line kX+bY+c=0 is the x-axis, and the line perpendicular to the straight line kX+bY+c=0 is the y-axis; establish a relative coordinate system (x, y), and mark the rest of the monitoring points in sequen...

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Abstract

The invention relates to a method and a system for measuring displacement through coordinate change between adjacent monitoring points. The method comprises the following steps: by the relative displacement variation between adjacent monitoring points, the absolute coordinates of all the monitoring points are obtained through coordinate system transformation according to the absolute coordinates of all the monitoring points, only the initial absolute coordinates of all the monitoring points need to be manually measured in the whole monitoring process, the absolute coordinates of all the monitoring points do not need to be measured many times along with the construction progress, and therefore the workload is reduced, and various error accumulation influences are reduced.

Description

technical field [0001] The invention relates to the field of engineering safety monitoring, in particular to a method and system for measuring the displacement of a monitoring point through coordinate changes between adjacent monitoring points. Background technique [0002] Foundation pit monitoring is an important link in the construction of foundation pit engineering. Observe and analyze the work, and feedback the monitoring results in time, predict the deformation and stable state development after the next construction, and judge the degree of impact of the construction on the surrounding environment according to the prediction, to guide the design and construction, and realize the so-called information construction . The foundation pit monitoring mainly includes horizontal displacement monitoring and vertical displacement monitoring. When measuring the horizontal displacement in a specific direction, the line-of-sight method, small angle method, and point projection me...

Claims

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Application Information

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IPC IPC(8): G01B11/03E02D33/00
CPCG01B11/03E02D33/00
Inventor 陈静万世平
Owner 四川合众精准科技有限公司
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