A novel, non-contact, thermal imaging sensor assembly for continuous bogie monitoring from Rail Vision Ltd

Rail Vision Ltd 的新型非接触式热成像传感器组件，用于连续转向架监控

• 批准号: 720569
• 金额: $ 31.86万
• 依托单位: RAIL VISION EUROPE LTD
• 依托单位国家: 英国
• 项目类别: GRD Development of Prototype
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=720569
• 关键词: novel; non; contact; thermal; imaging

Train accidents are often due to worn bogie parts (wheels, axles, brakes & bearings)overheating, breaking, & derailing the wagon affected. To identify this heat, Hot Axle Box &Hot Wheel (HABD/HWD) detection units are mounted at the track side. HABD/HWD useinfrared (IR) sensors to makes point based measurements of passing bogie IR radiation, whichis converted into electric voltages & displayed as absolute temperatures. There are limitationswith HABD/HWD, such as sampling of incorrect target points giving inaccurate information,as well as detrimental effects from solar radiation. ~10% of heat derailments occur despite thetrain having previously passed a HABD/HWD – likely an underestimate, as Germany, wheremost EU HABD/HWD are installed, has the highest number of heat-related derailments.The opportunity is for Rail Vision to develop a system to detect heat from bogies via a£582,405, 24-month development of prototype project. This low-cost, undercarriage-mounteddigital thermopile array module (DTAM), coupled to an optical camera, creates a continuousbogie monitoring system (CBMS). The CBMS tracks & records heat, merged with opticaldata from the bogie to provide more accurate information than HABD/HWD, & enablingremote, real-time monitoring (RTM) of the bogie. The CBMS will detect a gradient oftemperature across a cross-section of the component being monitored – to do this, RV willgenerate bespoke algorithms, data communication protocols & software platforms to collect,track & monitor data, & alert. CBMS RTM enables more accurate evaluation of temperatureanomalies than isolated IR HABD/HWD sampling – for customers, this will result in greatersafety of their rolling stock, and maintenance cost improvements. The CBMS supersedesHABD/HWD by monitoring temperature across cross-sections of bogies vs. isolated areas,allowing the user to accurately pinpoint heat anomalies via merging with optical imaging, &tracking & building a history of bogie performance

火车事故通常是由于转向架部件（车轮、车轴、制动器和轴承）磨损导致受影响的货车过热、断裂和脱轨。为了识别这种热量，热轴箱和热轮（HABD/HWD）检测单元安装在轨道侧。HABD/HWD使用红外（IR）传感器对经过的转向架IR辐射进行基于点的测量，将其转换为电压并显示为绝对温度。HABD/HWD有其局限性，例如对不正确的目标点进行采样，提供不准确的信息，以及太阳辐射的有害影响。尽管列车之前通过了HABD/HWD，但仍有约10%的热脱轨发生-这可能是低估的，因为安装了大多数欧盟HABD/HWD的德国发生的热脱轨数量最多。Rail Vision有机会通过为期24个月的原型项目开发一个582，405英镑的系统来检测转向架的热量。这种低成本、安装在底盘上的数字热电堆阵列模块（DTAM）与光学摄像机相耦合，形成了一个连续的转向架监控系统（CBMS）。CBMS跟踪并记录热量，与转向架的光学数据相结合，提供比HABD/HWD更准确的信息，并实现转向架的远程实时监控（RTM）。CBMS将检测被监测部件横截面上的温度梯度-为此，RV将生成定制算法、数据通信协议和软件平台，以收集、跟踪和监测数据并发出警报。CBMS RTM能够比孤立的IR HABD/HWD采样更准确地评估温度异常-对于客户来说，这将提高其机车车辆的安全性，并降低维护成本。CBMS取代HABD/HWD，通过监测转向架横截面与孤立区域的温度，允许用户通过与光学成像合并，跟踪和建立转向架性能历史，准确地查明热异常