Engineering structure fundamental frequency test wireless data collection system

Abstract

The invention discloses an engineering structure fundamental frequency test wireless data collection system comprising an acceleration sensor, an analog signal processor, an analog-digital signal conversion and data latching device, a programmable logic controller, a main control CPU controller, an electric conversion and data communication connector and a power supply module. The main control CPU controller adopted in the engineering structure fundamental frequency test wireless data collection system is a DSP processor manufactured by American TI company, parallel multiplication and integer or floating point data ALU operation in a single period can be performed, high data operation speed can be fulfilled, and a large-data-amount calculation can be finished. In the engineering structure fundamental frequency test wireless data collection system, a mobile 3G communication technologies which are now prevalently applied are adopted for data communication, large scope monitoring of a structure can be realized via the system without wire arrangement, many procedures in on-site monitoring processes can be eliminated, and structure monitoring reliability of the system can be ensured. The acceleration sensor of the engineering structure fundamental frequency test wireless data collection system is characterized by high precision, high sensitivity output, high dynamic range, good linearity, stable and reliable performance and the like.

Description

technical field [0001] The invention relates to a wireless acquisition technology for fundamental frequency testing of engineering structures, in particular to a data acquisition system for fundamental frequency testing of engineering structures. Background technique [0002] The health monitoring of major engineering structures plays a non-negligible role in the prevention of sudden structural damage and daily maintenance. The current health monitoring mostly relies on wired transmission, and data collection, transmission and processing are completed independently, especially data processing is usually completed on the computer in the data center, due to untimely data analysis and processing may lead to false alarms of structural accidents Phenomenon. Furthermore, due to the large amount of wiring required for wired transmission, it is difficult to achieve large-scale monitoring due to the large area and wide scope of the project site, which brings difficulties to predict ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a wireless data acquisition system for fundamental frequency testing of engineering structures, to solve the problem of false alarms of structural accidents that may occur when the general data acquisition system performs structural monitoring, to realize the problem of large-scale structural monitoring, and to solve the reliability of on-site monitoring question

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