Abstract
Aiming at the practical problems such as complex technology and large cost investment existing in the traditional environmental perception method in obtaining the operating status of underground unmanned vehicles, an innovative perception method of key operating status for underground unmanned vehicle based on dynamic wind field in roadway is proposed, which is verified by simulation and experiment. Firstly, the typical roadway airflow structure is analyzed based on the restricted jet theory, and the wind field disturbance element model of roadway-vehicle system is constructed based on the roadway piston wind effect. Secondly, the distribution characteristics of roadway airflow are analyzed through fluid simulation software. Then, the axial and radial wind field structure of the roadway containing the unmanned vehicle is simulated and analyzed, and the internal relationship between the dynamic wind field and the key operating status of unmanned vehicle is revealed. Finally, the experimental scene of circular wind tunnel is built, and the perception of the safe and abnormal operating status for the unmanned vehicle is effectively realized based on the dynamic wind field information. The experiment results verify the rationality and feasibility of perception method of key operating status for underground unmanned vehicle based on dynamic wind field in roadway, which can make up for the limitations of the existing roadway environment perception technology, and help to improve the operating safety of underground unmanned vehicles.
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