RF Energy Harvesting for Safe Monitoring of Rail Condition on Autonomous Trains

IF 7.1 2区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Vehicular Technology Pub Date : 2025-03-26 DOI:10.1109/TVT.2025.3554539

Sol Kim;Seong-Jin Kim;Ji-Hoon Lee;Jong-Won Yu;Dong-Jin Lee

引用次数: 0

Abstract

This paper presents a safe sensing scheme and radio frequency energy harvesting system (RFEHS) to monitor rail conditions for autonomous trains. Conventional sensing schemes expose trains on railroads to danger because trains must pass the rail to know its condition. The proposed sensing scheme gets rid of the danger and reduces the complexity of sensing processes and train systems because trains do not have to communicate directly with sensors. In this sensing scheme, the RFEHS receives dual polarization (DP) signal, which is all of the base station's polarizations so that the sensor operation gets more frequent. The harvesting capability of DP and linear polarization (LP) from a real base station is compared. To prove the feasibility of the proposed sensing scheme, the RF energy harvesting was conducted from a base station on the rail track. As a result, rail temperature data were obtained using DP-RFEHS in the proposed sensing scheme, which has low-complexity and is a safer solution for autonomous trains.

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自主列车轨道状态安全监测的射频能量采集

本文提出了一种安全传感方案和射频能量采集系统（RFEHS）来监测自主列车的轨道状况。传统的传感方案使铁路上的列车处于危险之中，因为列车必须通过铁轨才能了解其状况。由于列车不必直接与传感器通信，因此所提出的传感方案消除了危险，降低了传感过程和列车系统的复杂性。在该传感方案中，RFEHS接收双极化（DP）信号，即基站的所有极化，从而使传感器的工作更加频繁。比较了实际基站的线性极化和线性极化的收获能力。为了证明所提出的传感方案的可行性，在轨道上的基站进行了射频能量收集。结果表明，本文提出的传感方案采用DP-RFEHS获取轨道温度数据，具有低复杂度和更安全的自主列车解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Vehicular Technology 工程技术-电信学

CiteScore

6.00

自引率

8.80%

发文量

1245

审稿时长

6.3 months

期刊介绍： The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.