Journal of Shanghai Jiaotong University ›› 2017, Vol. 51 ›› Issue (4): 398-.

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Road Recognition Method of WheelTracked Robot Based on#br#  Multisensor Information Fusion

GONG Pengwei1,FEI Yanqiong1, 3, SONG Libo2   

  1. 1. Research Institute of Robotics, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. Engineering Training Center, Shanghai Jiao Tong University, Shanghai 200240, China;
    3. Department of Automation, Hangzhou Dianzi University, Hangzhou 310018, China
  • Online:2017-04-03 Published:2017-04-03

Abstract:

Abstract: In view of the wheeltracked robot’s road status recognition under the unknown circumstance, a new identification method was proposed based on multi information fusion, and the method compounded with support vector machine (SVM) theory and DempsterShafer (DS) evidence theory. First, a data acquisition system composed of ultrasonic sensors and infrared sensors was designed in order to get the features of the road condition. Then on the basis of Platt posteriori probability, the multiclass posteriori probability model and BPA function were constructed. Finally, experiments with SVM+DS fusion and identification method were carried out to identify the three typical road conditions. The results showed that flat road, slope and step conditions could be identified effectively, hence the method could satisfy the performance requirement of the wheeltracked robot.

Key words:  robot, road status recognition, multisensor information fusion, support vector machine (SVM), DempsterShafer (DS) evidence theory, basic probability assignment (BPA)

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