To position the personnel in railway tunnels in real
time and ensure safe construction, a railway tunnel personnel positioning
technology based on millimeter wave radar is proposed. Considering the
characteristics of railway tunnel construction environment, a frequencymodulated
continuous wave radar is used. First, the distance, velocity, and angle of the
target point are measured by analyzing the frequency, time delay, and phase of
the radar reflection wave, and the clutter elimination and target detection
algorithm are used to obtain the point cloud of the target. Then, a target
tracking algorithm is used to cluster and track the point cloud, obtaining and
displaying the position, velocity, and trajectory of the personnel, and issuing
alarms in a timely manner for abnormal behaviors. Finally, a semiphysical simulation environment is constructed. Radar nodes are
deployed inside the tunnel, and processing servers are deployed outside the
tunnel to experimentally verify the proposed technical solution. The research
results show that a single radar node can simultaneously track the position
distribution and posture information of at least six targets. The technical
solution can meet the requirements of realtime and
precise positioning of personnel in railway tunnels.
WEI Jun, HAN Junlong, WANG Wei, ZUO Zihui
. Personnel Positioning Technology for Railway Tunnels Based
on Millimeter Wave Radar[J]. Tunnel Construction, 2023
, 43(S2)
: 223
-229
.
DOI: 10.3973/j.issn.2096-4498.2023.S2.025
