Bridge-structure universal acquisition control system for health monitoring

Abstract

The invention aims at providing a bridge-structure universal acquisition control system for health monitoring. The bridge-structure universal acquisition control system for health monitoring comprises an acquisition device, a data acquisition module, a data processing module, a data evaluation module, a data display module, and a data storage and control module. The bridge-structure universal acquisition control system for health monitoring provided by the invention has the following beneficial effects of a data acquisition universal structure, a differential communication protocol and abstraction uniform interface, a sensing system acquisition strategy, a resource allocation strategy, a reliable control strategy based on a sensing object and combined with sensing system faults, a multi-parameter multi-level emergency capture strategy, a data storage and management strategy based on a relational data base, remote system control and update, and the like.

Description

technical field [0001] The invention belongs to the technical field of bridges, and relates to a universal collection and control system for health monitoring of bridge structures. Background technique [0002] Large basic buildings such as bridges are the material guarantee for the rapid development of my country's national economy. Once a natural disaster or structural aging occurs, it will bring disastrous consequences to the country and the people. Especially in recent years, some bridge collapse accidents have caused Incalculable economic losses and casualties. [0003] The so-called bridge health monitoring and safety assessment refers to the use of on-site non-destructive sensing technology to achieve the purpose of monitoring structural damage or degradation through the analysis of structural system characteristics including bridge structural response, and to conduct safety assessment based on the monitored data. The process of bridge health monitoring includes: regu...

AI Technical Summary

Problems solved by technology

Therefore, the difference in bridge structure makes the sensing system of bridge monitoring different, which leads to the universality of the bridge health monitoring data acquisition software system

If this problem is not effectively solved, it will be necessary to design a dedicated data acquisition system for each bridge, which will inevitably lead to low development efficiency and the consequences that the data acquisition system is not universal and difficult to promote

[0006] 2. The problem of capturing emergencies. Emergencies are the biggest threat to bridge safety, such as earthquakes, strong winds, impacts of large ships on bridge piers, etc. If they cannot be detected and taken measures in time, huge losses will be caused

At present, there is no mature judgment method and standard for emergencies, and emergencies are very accidental, which makes it very difficult to capture emergencies

[0007] 3. Reliability issues. The data acquisition system automatically works unattended at the bridge site. Its working environment is harsh. The hardware system (mainly including the acquisition and control system and the sensor system) has been subjected to high temperature and high humidity all year round. Therefore, the hardware system A variety of failures can occur in high probability states, including sporadic failures as well as permanent failures

[0009] Data collection is the basic and key part of structural health monitoring and safety assessment. Due to many factors such as structural differences in the measured structures, differences in sensing systems, harsh working environments, and high data requirements for safety assessments, the current data collection The software has problems such as low versatility, low reliability, and low effectiveness of data storage and management.

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