A new MEMS sensor for rail safety monitoring

用于铁路安全监测的新型 MEMS 传感器

• 批准号: 531232-2018
• 负责人: Take, WilliamAndrew
• 金额: $ 1.82万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=666424
• 关键词: new; MEMS; sensor; rail; safety

Railway transportation networks are a critical element of Canada's economy. These linear infrastructure**corridors must safely transport natural resources, raw materials, manufactured goods, and passengers over areas**of long-term track movements due to poor soil conditions, landslide hazards, and urban hazards such as**underground construction. To do this, the geometry of the track (e.g. cross-level, gauge, and warp) must be**maintained within allowable limits in order for maximum permissible track speeds to be maintained and**derailment risk to be minimized. In areas of moving ground, regular monitoring of track geometry is required**to schedule track maintenance to correct track geometry and ensure safety. However, in areas of critical**importance (e.g. a tunnel being bored in the soil under the track), weekly or even daily track inspections may**not be sufficient to capture the onset of accelerating track movements. There is therefore a world-wide market**for a new sensor technology that can monitor track geometry in near real-time (e.g. every 10 minutes) in these**critical areas. The objective of this Engage grant is to partner the innovative rail monitoring capabilities**developed at Queen's University (e.g. vibration-isolated high-speed imaging and distributed fibre optic sensing)**with the world-leader in geotechnical MEMS ground deformation sensors (Measurand Inc.) to perform a field**trial of Measurand's new prototype MEMS rail monitoring sensor to a) assess detection limits of track**geometry changes under real-world conditions, and b) to improve our fundamental scientific understanding of**the mechanism of track deterioration; in particular, to test the hypothesis that the rate of track deterioration can**be used to form the basis of an early warning system to protect against future unsafe track geometry.

铁路运输网络是加拿大经济的关键要素。这些线性基础设施**走廊必须安全地将自然资源，原材料，制造商和乘客运送到长期轨道运动的区域，这是由于土壤条件不良，山体危险和城市危害（例如**地下建筑）。为此，必须在允许的极限内保持**的几何形状（例如，跨级，仪表和翘曲），以维持最大允许的轨道速度，并将**脱轨风险最小化。在移动地面的区域，需要定期监视轨道几何形状**以安排跟踪维护以纠正轨道几何形状并确保安全。但是，在重要的领域（例如，在轨道下的土壤中钻孔的隧道），每周甚至每天的轨道检查可能不足以捕获加速轨道运动的发作。因此，对于一种新的传感器技术，有一个全球市场**可以在这些重要区域中实时监视轨道几何形状（例如每10分钟）。这项参与赠款的目的是与皇后大学开发的创新铁路监控能力**（例如，振动分离的高速成像和分布式光纤感测） INC.）进行现场**测量新的原型MEMS铁路监控传感器的试验a）评估轨道的检测限制**在现实世界条件下的几何变化，b）提高我们对**机制的基本科学理解轨道恶化；特别是，为了检验轨道劣化速率**的假设，以形成预警系统的基础，以防止未来的不安全轨道几何形状。