Embedded rapid quantitative evaluation method for traffic environment vibration and embedded rapid quantitative evaluation method

A traffic environment and quantitative evaluation technology, applied to vibration measurement in solids, measuring vibration, measuring devices, etc., to achieve the effects of suppressing data offset, saving calculation time, and ensuring test accuracy

Active Publication Date: 2012-08-15
NANJING UNIV
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The evaluation results are used for reference by the operation management depar

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  • Embedded rapid quantitative evaluation method for traffic environment vibration and embedded rapid quantitative evaluation method
  • Embedded rapid quantitative evaluation method for traffic environment vibration and embedded rapid quantitative evaluation method
  • Embedded rapid quantitative evaluation method for traffic environment vibration and embedded rapid quantitative evaluation method

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples, but the scope of application of the system is not limited to this example.

[0041] combine figure 1 The traffic environment vibration propagates in the foundation, foundation, and engineering structures in the form of elastic waves, generating vibration and corresponding secondary noise, which affects the work and quality of life of nearby residents and the structural safety of surrounding buildings. Generally speaking, the law of vibration propagation is complex and regional, and theoretical analysis cannot evaluate environmental vibration and noise well. Therefore, this system adopts a group of intelligent sensor nodes deployed at the vibration source and vibration sensitive points to collect traffic environment vibration noise. On the one hand, by measuring the vibration source, you can know the vibration evaluation parameters such as the vib...

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Abstract

Disclosed are an embedded rapid quantitative evaluation method for traffic environment vibration and an embedded rapid quantitative evaluation method. A group of intelligent sensor nodes are arranged at test sites to acquire traffic environment vibration data, and each node is used for internally evaluating traffic environment vibration and displaying results in real time. The test sites form a sensor network, each node achieves time synchronization by means of internal clock calibration, and the influence of different distances, different soil layers and different structural factors on vibration propagation is obtained by means of summing up evaluation results of all the test sites. The test sites are positioned at vibration sources and vibration-sensitive places caused by the vibration sources as required or positioned on running public transport vehicles, each node is provided with a vertical analog acceleration sensor and a horizontal analog acceleration sensor, and the data are outputted after passing through a signal conditioner, an analog-to-digital converter and a programmable anti-aliasing filter. The system is convenient in installation and the method is accurate in test.

Description

technical field [0001] The invention relates to the technical field of embedded system programming, in particular to an embedded rapid quantitative evaluation method and system for traffic environment vibration based on intelligent sensor technology. Background technique [0002] With the rapid development of urban construction, subways, roads, and viaducts have gradually penetrated into residential areas, commercial centers, and industrial areas in the city. While these infrastructures bring convenience to the public, they will also bring endless traffic environment vibrations to the public, seriously affecting the quality of life and health of the public. Therefore, effective environmental vibration monitoring methods must be adopted to quickly and quantitatively evaluate environmental vibration and noise, so as to control traffic environmental vibration in a targeted manner. [0003] Traditional traffic environment vibration monitoring uses wired connections to collect d...

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Application Information

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IPC IPC(8): G01H1/00
Inventor 张巍丁华平孙可丁蓬莱李慧鑫
Owner NANJING UNIV
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