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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Passive RFID-Based Inventory of Traffic Signs on Roads and Urban Environments
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Passive RFID-Based Inventory of Traffic Signs on Roads and Urban Environments

机译：基于无源RFID的道路和城市环境交通标志清单

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摘要

This paper presents a system with location functionalities for the inventory of traffic signs based on passive RFID technology. The proposed system simplifies the current video-based techniques, whose requirements regarding visibility are difficult to meet in some scenarios, such as dense urban areas. In addition, the system can be easily extended to consider any other street facilities, such as dumpsters or traffic lights. Furthermore, the system can perform the inventory process at night and at a vehicle’s usual speed, thus avoiding interfering with the normal traffic flow of the road. Moreover, the proposed system exploits the benefits of the passive RFID technologies over active RFID, which are typically employed on inventory and vehicular routing applications. Since the performance of passive RFID is not obvious for the required distance ranges on these in-motion scenarios, this paper, as its main contribution, addresses the problem in two different ways, on the one hand theoretically, presenting a radio wave propagation model at theoretical and simulation level for these scenarios; and on the other hand experimentally, comparing passive and active RFID alternatives regarding costs, power consumption, distance ranges, collision problems, and ease of reconfiguration. Finally, the performance of the proposed on-board system is experimentally validated, testing its capabilities for inventory purposes.
机译：本文提出了一种基于无源RFID技术的具有位置功能的交通标志清单系统。拟议的系统简化了当前基于视频的技术，这些技术在某些情况下（如人口稠密的城市地区）难以满足可视性要求。此外，可以轻松扩展该系统以考虑其他任何街道设施，例如垃圾箱或交通信号灯。此外，该系统可以在夜间以车辆的正常速度执行清点过程，从而避免干扰道路的正常交通流量。而且，所提出的系统利用了无源RFID技术相对于有源RFID的优势，有源RFID通常在库存和车辆路由应用中采用。由于在这些运动场景中所需距离范围内无源RFID的性能并不明显，因此，本文的主要贡献是以两种不同的方式解决了这一问题，一方面从理论上讲，提出了一种无线电波传播模型，这些方案的理论和仿真水平；另一方面，通过实验比较无源和有源RFID替代方案的成本，功耗，距离范围，碰撞问题和重新配置的难易程度。最后，通过实验验证了所提出的车载系统的性能，测试了其用于库存目的的能力。

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