基于D-S证据法的路面行车舒适性综合评价方法
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摘要
路面行车舒适性主要受路面平整度的影响,目前主要有主观感受、行车振动以及驾乘人员的心生理变化3种评价方法.由于测试对象、测试方法及评价标准不同,不同方法对路面行车舒适性评价的准确性不同,评价结果也有一定的差异.为了提升路面行车舒适性评价的准确性和客观性,文中利用平整度范围为1.06～5.53 m/km的12条沥青路面的室外乘车试验结果,提出了采用D-S(Dempster-Shafer)证据法对3种评价方法进行决策融合的路面行车舒适性综合评价方法.研究结果表明:采用D-S证据法建立的基于路面平整度的行车舒适性综合评价体系能够显著降低各评价方法的不确定性,验证了模型的有效性,得到了综合3种舒适性评价方法的路面平整度绝对阈值;速度对综合评价体系的不确定性下降比例有重要的影响,符合实际情况.
Road driving comfort is mainly affected by the pavement roughness. At present, there are three evaluation methods: subjective feeling, driving vibration and heart physiological changes of drivers and passengers. Due to different test objects, test methods and evaluation criteria, the accuracies of different methods for road driving comfort evaluation are different, and the evaluation results are also different. In order to improve the accuracy and objectivity of road driving comfort evaluation, a comprehensive evaluation method for road driving comfort using D-S(Dempster-Shafer) evidence method for decision-making fusion of three evaluation methods was proposed to test the outdoor riding test results of 12 asphalt pavements with roughness changing from 1.06～5.53 m/km. The research results show that the comprehensive evaluation system of driving comfort based on road roughness established by D-S evidence method can significantly reduce the uncertainty of each evaluation method, verify the validity of the model, and obtain the absolute threshold of road roughness with 3 kinds of comfort evaluation methods; the speed has an important influence on the proportion of uncertainty in the comprehensive evaluation system, which is in line with the actual situation.
Road driving comfort is mainly affected by the pavement roughness. At present, there are three evaluation methods: subjective feeling, driving vibration and heart physiological changes of drivers and passengers. Due to different test objects, test methods and evaluation criteria, the accuracies of different methods for road driving comfort evaluation are different, and the evaluation results are also different. In order to improve the accuracy and objectivity of road driving comfort evaluation, a comprehensive evaluation method for road driving comfort using D-S(Dempster-Shafer) evidence method for decision-making fusion of three evaluation methods was proposed to test the outdoor riding test results of 12 asphalt pavements with roughness changing from 1.06～5.53 m/km. The research results show that the comprehensive evaluation system of driving comfort based on road roughness established by D-S evidence method can significantly reduce the uncertainty of each evaluation method, verify the validity of the model, and obtain the absolute threshold of road roughness with 3 kinds of comfort evaluation methods; the speed has an important influence on the proportion of uncertainty in the comprehensive evaluation system, which is in line with the actual situation.
引文
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[2] 杨风暴,王肖霞.D-S证据理论的冲突证据合成方法 [M].北京:国防工业出版社,2010.
[3] 刘晓敏,杨昕欣.基于神经网络和D-S证据理论的交通目标识别 [J].计算机仿真,2010,27(9):295- 298.LIU Xiao-min,YANG Xin-xin.Traffic target recognition in traffic surveillance system based on neural network and D-S evidence theory [J].Computer Simulation,2010,27(9):295- 298.
[4] HUANG Z,REN F.Facial expression recognition based on multi-regional D-S evidences theory fusion [J].IEEJ Transactions on Electrical & Electronic Engineering,2016,12(2):251- 261.
[5] ZHANG J,WANG X,GAO S,et al.Comprehensive evaluation of driver’s propensity based on evidence theory [J].Discrete Dynamics in Nature and Society,2012,2012:103582/1- 8.
[6] 刘小跃,杨凯,马建峰.基于D-S证据理论的双层卫星网络可信路由 [J].华南理工大学学报(自然科学版),2011,39(5):78- 83.LIU Xiao-yue,YANG Kai,MA Jian-feng.Trusted routing of double-layer satellite networks based on D-S evidence theory [J].Journal of South China University of Techno-logy(Natural Science Edition),2011,39(5):78- 83.
[7] 高金辉,陈玉珠,汪晓晨.传感器融合技术在火灾预警探测中的应用研究 [J].河南师范大学学报(自然科学版),2010,38(2):56- 59.GAO Jin-hui,CHEN Yu-zhu,WANG Xiao-chen.Application of sensors fusion technology in fire warning and detection [J].Journal of Henan Normal University(Natural Science),2010,38(2):56- 59.
[8] 张金喜,杜艳花.基于乘客感受的沥青路面平整度评价方法 [J].北京工业大学学报,2013,39(2):257- 262.ZHANG Jin-xi,DU Yan-hua.Evaluation method of asphalt pavement roughness based on passengers’ riding comfort [J].Journal of Beijing University of Technology,2013,39(2):257- 262.
[9] 王锋.基于驾乘舒适性理论的道路路面性能评价研究 [D].北京:北京工业大学,2013.
[10] 许伦辉,叶凡.基于横、轴、竖加速度干扰模型的行车舒适性评价 [J].广西师范大学学报(自然科学版),2011,29(1):5- 9.XU Lun-hui,YE Fan.Acceleration noise model based on horizonal,vertical and lateral aceleration [J].Journal of Guangxi Normal University(Natural Science Edition),2011,29(1):5- 9.
[11] 高增礼,张玉芬,王钧利.路面性质对乘坐舒适性影响的主观评价 [J].中国公路学报,1995(S1):33- 38.GAO Zengli,ZHANG Yufen,WANG Junli.Pavement characters affecting passengers’ comfortness and its subjective index [J].China Journal of Highway and Transport,1995(S1):33- 38.
[12] Mechanical vibration and shock-evaluation of human exposure to whole-body vibration Part 1:general requirements:ISO 2631- 1:1997(E) [S/OL].(1997- 07- 15) [2018- 06- 06].https://www.iso.org/standard/7612.html.
[13] 潘晓东,杜志刚,蒋宏,等.驾驶员心率和血压变动与山区公路线形关系的实验研究 [J].人类工效学,2006(2):16- 18,30.PAN Xiao-dong,DU Zhi-gang,JIANG Hong,et al.Experiment research on relationship between the variation of drivers’ heart rate and systolic blood pressure and alignment of mountainous highway [J].Chinese Journal of Ergonomics,2006(2):16- 18,30.
[14] 郭强,关欣,曹昕莹,等.知识融合理论研究发展与展望 [J].中国电子科学研究院学报,2012,7(3):252- 257.GUO Qiang,GUAN Xin,CAO Xin-ying,et al.The develo-pment and overview of knowledge fusion theory research [J].Journal of China Academy of Electronics and Information Technology,2012,7(3):252- 257.
[15] 韩立岩,周芳.基于D-S证据理论的知识融合及其应用 [J].北京航空航天大学学报,2006,32(1):65- 68.HAN Liyan,ZHOU Fang.Knowledge fusion based on D-S evidence theory and its application [J].Journal of Beijing University of Aeronautics and Astronautics,2006,32(1):65- 68.