Great structure horizontal two-dimensional displacement automatic measuring equipment and method

Abstract

The invention provides a large structure horizontal planar displacement automatic measuring device and a method thereof. The automatic measuring device consists of a laser alignment emitter, a natural light filtration drone, a light spot position collection device, and a computer in which measuring software and database are installed. The natural light filtration drone is connected with the computer by the light spot position collection device. The laser alignment emitter consists of a flexible connection device and a shield, thus constituting a self-erect structure. The light spot position collection device transmits the collected variations in light spot colors, shapes and gradients to the computer which processes the variations and outputs measurement results. The large structure horizontal planar displacement automatic measuring device is applicable for detection and monitoring of distortion and movement of such large structures as bridges, cable support towers or buildings and so on. Vibration frequency, vibration amplitude of a point at any time can be detected and monitored. The automatic measuring device can be used for measuring and computing static and dynamic displacement and distortion, as well as computing and evaluating long-term displacement, distortion, and change trend thereof. The automatic measuring device has the characteristics of quick measurement, great interference rejection, high stability and so on.

Description

technical field [0001] The invention relates to a displacement measurement technology, in particular to an automatic measurement device and method for a large structure horizontal two-dimensional displacement capable of long-term monitoring. Background technique [0002] Large structures such as bridges and high-rise buildings will produce lateral deformation and displacement under the action of force, light and vibration, which are generally represented by the relative displacement between the point to be measured and the fixed reference point on the large structure. Displacement can directly reflect the construction quality, bearing capacity, and health of the structure. Therefore, there are strict regulations in the design, construction quality control, and completion acceptance of large-scale structures. It is necessary to construct large-scale structures such as bridges and high-rise structures. Measure its displacement and deformation parameters during the process, com...

AI Technical Summary

Problems solved by technology

Chinese Patent No. 01129069.2 discloses "Multi-objective large-scale structure two-dimensional displacement remote measurement method and its equipment", which has a complex structure and many unstable factors, and the long-term monitoring accuracy is difficult to meet the actual needs

Since the invention uses image projection for measurement, due to the huge size of the large structure, there must be serious diffraction and scattering in the projection, so it cannot be used for horizontal two-dimensional displacement measurement of large structures

Another example is the "electrically measured horizontal displacement meter" disclosed in Chinese Patent No. 200410014177.3. The displacement is measured through the displacement transmission rod arranged in the outer protective tube and the displacement sensor arranged on the displacement flange, but it can only measure the contact type one-dimensional horizontal displacement. take measurements

In addition, most of the currently disclosed displacement measurement devices are contact measurement or can only measure displacement in the vertical direction, and basically do not involve automatic measurement devices and methods for two-dimensional displacement in the horizontal direction.

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