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V2X

Transportation today faces a multi-dimensional problem. Key stakeholders, whether governmental agencies, traffic operation owners, automakers, or the industry are under constant pressure to deliver innovative ways to make transportation safer, more environmentally friendly, more efficient for people and goods, and a more enjoyable experience for the end user.

Striving to achieve these goals has been at the focus of the industry and led to groundbreaking technologies that are used in today’s vehicles: lidars, radars, cameras, ultrasound... A common property of these sensors is that operate only in situations in which other vehicles are within line of sight. Additionally, some of them see their performance decline in adverse weather conditions with poor visibility, or are limited in range.

It becomes obvious that vehicles need to be equipped with another technology to safely enable advanced automotive applications. V2X is a technology that has been designed from day one to address the aforementioned challenges, which makes it the ideal technology to complete the puzzle.

 

V2X是指车辆与车辆(V2V)或车辆与环境(车辆对基础设施,V2I)之间的信息交换。而这些信息可以告诉您后方驾驶员即将超车,或者在您车辆前方有人正在靠近十字路口。这些与事故相关的信息将有助于引导交通,从而避免交通堵塞。它也能使驾驶员拥有更加轻松安全的驾驶体验。

这项新技术还将造福于环境:由于该技术能够预测超车动作、规避交通信号灯、识别街道路牌并提供十字路口警报,因此可以优化交通流量,降低燃油消耗和二氧化碳排放量。

此外,该技术还可降低交通管理成本,进而优化政府预算。

准确的汽车定位和安全性是V2X所面临的两大挑战。此外,行人和骑行者检测也有待改进。它同时还必须符合全球各区域的不同规定,才能实现V2X的成功应用。

V2X的基础通信技术基于IEEE 802.11p标准设计,该标准规定了传统Wi-Fi的增强功能,对低延迟、非视距和长距离连接进行了优化。

V2X采用设计精良的安全和验证框架,不仅可以防止恶意攻击,还能满足相关应用程序所要求的严苛延迟限制。V2X采用了u‑blox UBX-P3芯片和VERA P1模块,且用于基础设施和车辆的汽车级V2X芯片和模块符合美国和欧洲的WAVE和ETSI ITS标准。即使通信距离超过1公里,并行双通道通信和单通道802.11p多样运行也可实现优质通讯。

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