A bridge deformation monitoring method, storage medium and bridge deformation monitoring receiver

Abstract

The invention discloses a bridge deformation monitoring method, a storage medium and a bridge deformation monitoring receiver. The method includes: building a bridge deformation monitoring system comprising a GNSS and a UWB in advance; introducing speed parameters into a Kalman filtering model, and setting an initial-state covariance matrix; building a dynamic transfer equation in a calculation process; calculating a priori-estimation covariance matrix; building the observation equation of each of the GNSS and the UWB, and combining with the current-epoch priori-state estimation value to buildan observation equation set; using a weighted least square method to perform estimation to obtain the covariance matrix; when the observation signal of the next epoch is monitored, repeating the steps above, and using the bridge deformation monitoring receiver to calculate a position under the current epoch to determine the deformation position of a bridge. The method has the advantages that thebridge deformation monitoring system comprising the GNSS and the UWB is built, the deformation position of the bridge can be acquired accurately, and the positioning errors of a bridge deformation monitoring system are reduced effectively.

Description

technical field [0001] The invention relates to the technical field of bridge deformation dynamic monitoring, in particular to a bridge deformation monitoring method, a storage medium and a bridge deformation monitoring receiver. Background technique [0002] Since GNSS (Global Navigation Satellite System) can achieve centimeter-level real-time positioning accuracy, the current real-time dynamic monitoring methods for high-precision bridge deformation basically use GNSS system for monitoring. [0003] However, the load deformation of the bridge basically occurs in the elevation direction. Since the satellites of the GNSS positioning system are distributed above the positioning target, the geometric structure in the elevation direction is weak, and the positioning error in the elevation direction is about three times that in the horizontal direction. It is difficult to meet the requirements of real-time high-precision bridge deformation monitoring, which increases the difficu...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a bridge deformation monitoring method, a storage medium, and a bridge deformation monitoring receiver for the above-mentioned defects of the prior art, aiming to solve the problem of the bridge deformation monitoring method in the prior art in the elevation direction. The problem of large positioning errors

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