采样点选择对动态汽车衡称量精度的影响

李丽宏; 裴春清; 刘军; 谢克明

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采样点选择对动态汽车衡称量精度的影响

更新时间：2026-09-14

- 采样点选择对动态汽车衡称量精度的影响
- 采样点选择对动态汽车衡称量精度的影响
- Issue 1, (2010)
- 作者机构：
  
  太原理工大学信息工程学院,山西,太原,030024
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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李丽宏, 裴春清, 刘军, et al. 采样点选择对动态汽车衡称量精度的影响[J]. 2010, (1).
DOI：

李丽宏, 裴春清, 刘军, et al. 采样点选择对动态汽车衡称量精度的影响[J]. 2010, (1). DOI：

摘要

为了提高动态称重的精度

提出一种选取有效采样点减小误差的方式.该方式选用有限冲击响应数字滤波的方法设计数字滤波器

并利用Matlab软件进行了仿真.经过滤波后的采样信号

将重量信号大于3Hz以上的全部滤去

消除了汽车经过秤台时的各种干扰信号;保留有用的汽车轴重信号

准确提取出有效数据称量段;再采用3σ准则去除粗大误差

对去除粗大误差后的数据求和

然后取平均值作为经过秤台的汽车轴重测量值.对实验结果的分析表明:通过选取有效采样点

可使动态汽车衡在50%载荷时的称量精度提高到1%以内.

Abstract

In order to improve the accuracy of weigh-in-motion

the effective way of selecting sampling points is presented to reduce error.A digital filter is designed with FIR and simulated with Matlab software.After filtering

the weight signals higher than 3 Hz and all kinds of disturbing signals are eliminated when the car passing through the scales

and then the effective data are picked up accurately.The criterion of 3 standard deviation is used to remove gross errors

and then the data are averaged as the measured weigh-in-motion value.The experimental results show that

by choosing the effective sampling points

the accuracy of dynamic automotive value at 50% load can reach 1%.

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