Smart Mobility Digital Twin Based Automated Vehicle Navigation System: A Proof of Concept
IEEE Transactions on Intelligent Vehicles(2024)
摘要
Digital twins (DTs) have driven major advancements across various industrial
domains over the past two decades. With the rapid advancements in autonomous
driving and vehicle-to-everything (V2X) technologies, integrating DTs into
vehicular platforms is anticipated to further revolutionize smart mobility
systems. In this paper, a new smart mobility DT (SMDT) platform is proposed for
the control of connected and automated vehicles (CAVs) over next-generation
wireless networks. In particular, the proposed platform enables cloud services
to leverage the abilities of DTs to promote the autonomous driving experience.
To enhance traffic efficiency and road safety measures, a novel navigation
system that exploits available DT information is designed. The SMDT platform
and navigation system are implemented with state-of-the-art products, e.g.,
CAVs and roadside units (RSUs), and emerging technologies, e.g., cloud and
cellular V2X (C-V2X). In addition, proof-of-concept (PoC) experiments are
conducted to validate system performance. The performance of SMDT is evaluated
from two standpoints: (i) the rewards of the proposed navigation system on
traffic efficiency and safety and, (ii) the latency and reliability of the SMDT
platform. Our experimental results using SUMO-based large-scale traffic
simulations show that the proposed SMDT can reduce the average travel time and
the blocking probability due to unexpected traffic incidents. Furthermore, the
results record a peak overall latency for DT modeling and route planning
services to be 155.15 ms and 810.59 ms, respectively, which validates that our
proposed design aligns with the 3GPP requirements for emerging V2X use cases
and fulfills the targets of the proposed design. Our demonstration video can be
found at https://youtu.be/3waQwlaHQkk.
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关键词
smart mobility digital twin,navigation system,vehicle-to-everything,cloud and edge computing,implementation
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