Spatial distribution monitoring system of whole bridge deck moving load based on dynamic weighing and multi-video information fusion

Abstract

The invention discloses a whole bridge deck moving load spatial distribution monitoring system based on dynamic weighing and multi-video information fusion. A dynamic weighing system is arranged at the starting position of the bridge deck to obtain the vehicle weight information of the moving load, A plurality of cameras are arranged along the bridge to obtain video information of traffic flow covering the whole bridge deck, There is an overlap area in the field of view of two adjacent cameras, information collection and network communication system is arranged on site, and deploy the information processing and analysis master control system in the cloud, Combined with Kalman filter and visual field demarcation line method to track vehicle trajectory and position in visual field, Accordingto the time that the vehicle crosses the online slot of the piezoelectric sensor of the dynamic weighing system, the dynamic weighing and monitoring multi-video information are fused to realize the accurate and real-time identification of the magnitude and position of the moving load in the whole bridge deck. The invention has the advantages of fast calculation speed and high identification accuracy, and is suitable for monitoring the full coverage of various bridge decks or pavement moving vehicle loads in a designated area.

Description

technical field [0001] The invention relates to the field of bridge health monitoring, in particular to a monitoring system and a monitoring method for spatial distribution of full bridge deck moving loads based on dynamic weighing and multi-video information fusion. Background technique [0002] Vehicle loads are the main variable loads on highway bridges. With the rapid development of the transportation industry, the number of overloaded vehicles has also increased significantly while the traffic volume has increased rapidly. The repeated action of vehicle overload and traffic load has become the main reason for affecting the safety of bridge operation and shortening the service life of bridges. Therefore, it becomes very important to accurately identify the magnitude and location of the moving load on the bridge deck. [0003] For the identification of moving vehicle loads, there are currently two main means. The first is to use the dynamic weighing system to obtain da...

AI Technical Summary

Problems solved by technology

However, the current multi-camera monitoring methods still belong to the combination of multiple single-camera monitoring, and there is no effective connection between the cameras.

[0005] At present, there is no method for integrating dynamic weighing system and multi-camera monitoring information. Based on the above background, it is necessary to invent a monitoring system that integrates dynamic weighing system and multi-camera monitoring information to realize real-time distribution of vehicle loads on the entire bridge deck. effective monitoring of

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