基于改进TPDS长阵列的车辆超偏载检测研究  

Research on Vehicle Overload and Bias Detection Based on Improved TPDS Long Array

作　　者：王萌 苏玉东 范帆 WANG Meng;SU Yudong;FAN Fan(China Energy Railway Equipment Limited Liability Company,Beijing 100010,China;Tianjin Hveic Technologies Co.,Ltd.,Tianjin 301799,China)

机构地区：[1]国能铁路装备有限责任公司,北京100010 [2]天津哈威克科技有限公司,天津301799

出　　处：《计算机测量与控制》2024年第5期53-59,共7页Computer Measurement &Control

基　　金：北京科技厅科技攻关项目(BJ2022KJA0712)。

摘　　要：由于车辆超偏载检测过程中,受天气、路况等因素以及车辆行驶状态影响,导致信号组成的阵列过短,利用传统的TPDS车辆超偏载检测精度较低、耗时较长;提出基于改进TPDS长阵列的车辆超偏载检测研究;通过车辆运行品质轨边动态监测系统,利用测距传感器与数据采集仪将力学信号转换成电压信号,将其组合为长阵列输入到系统的测距传感器中;采用EDM算法对长阵列中的噪声点实施消除处理;将4个测距传感器安置到货运车辆底部,采用货运车辆动态称重方法,计算车辆上各弹簧组承载力的总和,并结合车辆有用信号,对车辆的载重情况展开测量,实现对车辆的超偏载检测;实验结果表明,利用长阵列改进TPDS系统后,其去噪效果好,在载重测量时,测量误差在5%以内,且平均耗时低、称重合格概率高,表明所提方法的测量精度、检测效率以及检测稳定性高。Due to the influence of factors such as weather,road conditions,and vehicle driving statuses,it results in the signal array too short during the process of vehicle overloading detection.Traditional truck performance detection systems(TPDS)have the characteristics of low accuracy and long processing time in vehicle overloading detection.On this basis,a vehicle overloading detection system based on an improved TPDS with a long array is proposed.Through the vehicle running quality trackside dynamic monitoring system,the distance measuring sensors and data acquisition devices are used to convert mechanical signals into voltage signals.The output signals are combined to form a long array,which is inputted into the distance measuring sensors of the system.The empirical mode decomposition(EDM)algorithm is applied to eliminate noise points in the long array.Four distance measuring sensors are installed at the bottom of freight vehicle.The dynamic weighing method for freight vehicle is adopted to calculate the total load-bearing capacity of each spring group on the vehicle.By combined with the useful signals of vehicle,the vehicle overloading is measured,achieving the vehicle overloading detection.Experimental results demonstrate that the improved TPDS system with a long array has a good denoising performance,the measurement error is within 5%,with the low average processing time and high probability of weight qualification,the proposed method has a high measurement accuracy,detection efficiency,and detection stability.

关 键 词：TPDS 长阵列 EDM 测距传感器 车辆超偏载检测系统 

分 类 号：U270[机械工程—车辆工程]