Beidou satellite-based bridge monitoring system and arrangement method thereof

Abstract

The invention relates to the field of bridge detection, and discloses a Beidou satellite-based bridge monitoring system and an arrangement method thereof. A plurality of Beidou GNSS base stations, a data processing system and an arrangement method of the Beidou GNSS base stations are included, and data acquired by the Beidou GNSS base stations can be sent to the data processing system for calculation and induction to obtain bridge deformation data. The system and method have the following advantages and effects that the three-dimensional positioning data of the bridge floor monitoring points of the railway bridge are obtained through signals of the Beidou satellite, the three-dimensional positioning data are calibrated by means of mutual distance measurement between Beidou GNSS base stations, and finally the deformation condition of the railway bridge is obtained by summarizing the obtained three-dimensional positioning data through the data processing system. The deformation condition of the bridge can be continuously monitored, early warning can be carried out at the early stage of bridge damage, and the danger of bridge collapse is greatly avoided.

Description

technical field [0001] The invention relates to the field of bridge monitoring, in particular to a Beidou satellite-based bridge monitoring system and an arrangement method thereof. Background technique [0002] According to statistics, the number and difficulty of building bridges in my country ranks first in the world; as of 2019, my country has nearly 200,000 railway bridges, of which 9 super-large railway bridges were completed in 2016 alone. According to relevant statistics, from 2007 to 2012, 37 bridges collapsed in China, with an average of more than 6 "killing bridges" every year, resulting in the death of more than 180 people. Nearly six of these collapsed bridges were built after 1994 and are less than 20 years old. For example, in June 2012, a flood occurred in the Bahe River in Xi'an City, and five piers of the Bahe Bridge on the Longhai Railway collapsed one after another, and six beams fell into the river; in August 2010, the Shitingjiang Railway Bridge betwee...

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Problems solved by technology

[0003] In the prior art, bridges are regularly inspected by manpower carrying ranging equipment, but this inspection method is time-consuming and laborious, and the time interval is large, so it is difficult to detect bridge problems in time

[0004] Patent Publication No. CN106767664B provides a method for real-time monitoring of deformation of long-span bridges based on the Beidou system. This method provides more of a processing method for detection data. For the equipment and placement of the bridge detection system directly , how to detect, etc. are not mentioned, it is difficult to directly apply to bridge detection

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