使用路边微电机系统加速度计获取车辆负载信息
Qian Zhao1, Zhoujing Ye2, Zhao Tan1
1National Engineering Research Center for Digital Construction and Evaluation of Urban Rail Transit, China Railway Design Corporation, Co., Ltd., Tianjin 300308, China.
Sensors (Basel, Switzerland)
|August 28, 2025
概括
道路传感器可以通过路面振动来估计车辆负载. 该方法使用微电机系统 (MEMS) 加速度计来分析速度,位置和负载,以提高道路管理和安全性.
科学领域:
- 土木工程
- 运输工程
- 地质工程
背景情况:
- 车辆的负载,速度和横向位置对于道路基础设施管理和交通安全至关重要.
- 现有的数据收集方法可能耗费大量资源.
- 路面对动态负荷的反应为非侵入性监测提供了潜力.
研究的目的:
- 使用路边MEMS加速度计收集车辆速度,横向位置和负载数据的新方法.
- 在各种交通条件下分析路面振动反应.
- 建立车辆负载估计和传感器部署的实用方法.
主要方法:
- 使用有限元法 (FEM) 数据对路面振动反应的分析.
- 使用路边MEMS加速度计和全尺寸加速载荷测试仪收集实验数据.
- 振动特性与车辆参数 (速度,负载,侧向位置) 之间的相关性分析.
主要成果:
- 垂直峰值加速度与车辆速度 (5-22公里/小时) 线性相关.
- 根据功率定律,随着侧向距离轮道的增加,振动响应会减少.
- 振动能量与车辆总负载有很强的正线性相关性 (R=0.885).
结论:
- 路边MEMS加速度计为估计车辆负载提供了一种实用方法.
- 这些发现支持了路面监测的最佳传感器放置策略.
- 这种方法提高了路面性能监测系统和道路管理能力.
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