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Redesign of the trajectory within a complex intersection for visible light communication ready connected cars
Optical Engineering ( IF 1.3 ) Pub Date : 2020-09-14 , DOI: 10.1117/1.oe.59.9.097104
Manuel Augusto Vieira 1 , Manuela Vieira 1 , Paula Louro 1 , Pedro Vieira 1
Affiliation  

Abstract. To serve the changing needs of road traffic control, the road space and road structure surrounding an intersection have evolved into complex forms. The redesign of the trajectories, though complex, can be accomplished by the application of methods for navigation, guidance, and combination of expert knowledge of road traffic control of vehicles, using a concept of request/response in a two-way-to-way traffic light-controlled crossroad. The communication between the infrastructures and the vehicles (I2V), between vehicles (V2V), and from the vehicles to the infrastructures (V2I) is performed through visible light communication (VLC) using the street lamps and the traffic signaling to broadcast the information. Vehicle headlamps and taillights are used to transmit data to other vehicles or infrastructures allowing digital safety and data privacy. Data are encoded, modulated, and converted into light signals emitted by the transmitters. Tetra-chromatic white sources are used providing a different data channel for each chip. As receivers and decoders, silicon/carbon wavelength division multiplexer devices, with light filtering properties, are used. The primary objective is to control the arrival of vehicles to an intersection and schedule them to cross at times that minimize delays. A further objective is to allocate delays between left-turns and forward movements, moderating the speed and slot between vehicles traveling in these directions, maintaining a safe distance from one to another. Pedestrians and bicycles are incorporated. A I2V2V2I traffic scenario is established. A phasing traffic flow is developed as a proof of concept. The experimental results confirm the cooperative VLC architecture showing that communication between connected cars is optimized.

中文翻译:

为可见光通信就绪的联网汽车重新设计复杂交叉路口内的轨迹

摘要。为了满足道路交通控制不断变化的需求,十字路口周围的道路空间和道路结构已经演变成复杂的形式。轨迹的重新设计虽然复杂,但可以通过应用导航、引导和结合车辆道路交通控制专家知识的方法,使用双向请求/响应的概念来完成交通灯控制的十字路口。基础设施与车辆之间(I2V)、车辆之间(V2V)以及车辆与基础设施(V2I)之间的通信是通过可见光通信(VLC)使用路灯和交通信号广播信息进行的。车辆前照灯和尾灯用于将数据传输到其他车辆或基础设施,从而实现数字安全和数据隐私。数据被编码、调制并转换为发射器发出的光信号。使用四色白色光源为每个芯片提供不同的数据通道。作为接收器和解码器,使用具有滤光特性的硅/碳波分复用器设备。主要目标是控制车辆到达交叉路口,并安排它们在尽量减少延误的时间过马路。另一个目标是分配左转和向前运动之间的延迟,调节沿这些方向行驶的车辆之间的速度和时隙,保持彼此之间的安全距离。行人和自行车被纳入。建立I2V2V2I流量场景。分阶段交通流是作为概念证明而开发的。实验结果证实了协同 VLC 架构,表明联网汽车之间的通信得到了优化。
更新日期:2020-09-14
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