Bridge health monitoring system

Abstract

The invention discloses a bridge health monitoring system, which comprises a sensor, a sub-workstation, a server and a client. The sensor is used for acquiring structured data of each part of a bridge; the sub-workstation is used for preprocessing the data acquired by the sensor; the server is used for receiving the data transmitted by the sub-workstation and stores the data in a database; the client is used for processing, analyzing and displaying the data in the database; the sensor is connected with the sub-workstation, the sub-workstation is connected with the server through a local area network, and the server is connected with the client through the Internet; the sub-workstation preprocesses the data acquired by the sensor and transmits the processed data to the server; and the server receives the data and stores the processed data in the database, and the client processes, analyzes and displays the data in the database to realize the remote real-time monitoring of the health condition of each bridge. The client can perform remote real-time monitoring on the health condition of each scattered bridge, and can establish a large-scale monitoring network; and the client can be set flexibly and brings convenience to the real-time monitoring of the bridges.

Description

technical field [0001] The present invention relates to the technical field of bridge engineering automation, in particular to a bridge health monitoring system, which can remotely and real-time monitor the working environment and structural state of large bridges and the response of bridges under the action of various external load factors such as vehicles, and monitor The health status of the entire bridge is intelligently assessed. Background technique [0002] As bridges play an increasingly important role in transportation, the continuous progress of bridge design theory and construction technology has led to new breakthroughs in bridge spans and increasingly complex structural forms. [0003] However, at present, middle-aged and old bridges account for a considerable proportion of the domestic land transportation network. With the growth of bridge age, due to the effects of natural factors such as environment and climate, there are also increasing traffic volume and he...

AI Technical Summary

Problems solved by technology

[0003] However, at present, middle-aged and old bridges account for a considerable proportion of the domestic land transportation network. With the growth of bridge age, due to the effects of natural factors such as environment and climate, there are also increasing traffic volume and heavy and overweight vehicles crossing the bridge. Due to factors such as increasing numbers and man-made accidents, many bridges have experienced serious functional degradation. Therefore, it is necessary to monitor the health of bridges and carry out necessary maintenance to prevent disasters such as bridge collapse.

[0004] Existing bridge monitoring methods include the following: (1) Manual monitoring methods, that is, manually measuring, recording and processing various data of bridge health status. The defect of this method is that it takes a long time to complete a data collection. It is difficult to ensure the consistency of the data working status of each observation point, and it is inevitable to introduce human errors in the process of data measurement, recording, and processing. Moreover, due to the regional distribution of bridges, manual monitoring is also difficult.

In addition, during monitoring, modern optical, ultrasonic, electromagnetic and other technical detection tools are generally used to detect the mechanical properties and working performance of large structures, which can only provide local detection and diagnostic information of the structure, but cannot provide overall and Comprehensive health detection and evaluation information of the whole bridge structure; (2) Bridge monitoring method established by GSM connection, which uses GSM circuit-switched voice service to establish point-to-point data connection, and the data center computer controls the bridges respectively. The shortcomings of each data collector are: slow data collection speed and cumbersome operation; the data center computer must be equipped with a dedicated data transmission module and mobile phone card, which is extremely inconvenient to use; slow data transmission speed and high cost. Difficult; (3) The bridge monitoring method using optical cables to establish connections, which uses dedicated optical cables or leased telecommunication public optical cables to establish data connections, and the computer in the monitoring center controls the acquisition equipment to complete data acquisition or realizes automatic data acquisition by setting control terminals. The disadvantages of the method are: high cost, difficult maintenance, relatively fixed monitoring center, and difficulty in building a large monitoring network

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