Autonomous truck and trailer configurations face challenges when operating in reverse due to the lack of sensing on the trailer. It is anticipated that sensor packages will be installed on existing trailers to extend autonomous operations while operating in reverse in uncontrolled environments, like a customer's loading dock. Power Line Communication (PLC) between the trailer and the tractor cannot support high bandwidth and low latency communication. This paper explores the impact of using Ethernet or a wireless medium for commercial trailer-tractor communication on the lifecycle and operation of trailer electronic control units (ECUs) from a Systems Engineering perspective to address system requirements, integration, and security. Additionally, content-based and host-based networking approaches for in-vehicle communication, such as Named Data Networking (NDN) and IP-based networking are compared. Implementation, testing and evaluation of prototype trailer ECU communication with the tractor ECUs over Ethernet is shown by transmitting different data types simultaneously. These simultaneous data include signals typically found on J1939 networks, LiDAR data packets and camera frames using a PC and three Raspberry Pis. The implementation is tested with two networking approaches, Named Data Networking, and Data Distribution Service (DDS) and the test indicated that NDN over TCP is an efficient approach that outperformed DDS in two cases with less power consumed on the trailer side. Using Ethernet or a wireless harness and NDN for commercial trailer Anti-Lock Braking System (ABS) ECU provides adequate resources for the operation of autonomous trucks and the expansion of its capabilities, and at the same time significantly reduces the complexities compared to when new features are added to legacy communication systems.
翻译:由于拖车缺乏感知,自动卡车和拖车配置在反向运行时面临挑战,预计在现有拖车上安装传感器包,以扩展自动操作,同时在无控制的环境中进行反向运行,如客户的装货码头;拖车和拖车之间的电线通信无法支持高带宽和低延缓通信;本文探讨了使用Ethernet或无线媒体进行商业拖车拖车通信对寿命周期和拖车电子控制单位运作的影响,从系统工程学角度从系统工程学角度探讨拖车电子控制单位(ECUs)的运行,以满足系统要求、整合和安全。此外,将基于内容的和基于主机的自动连线功能安装在不受控制的环境中运行,例如NDNN网络和基于IP的网络连接功能进行对比。执行、测试和评估拖车ECUS与Ethernets的原型电动通信,同时传输不同数据类型。这些同时数据包括从J39网络、LDAR数据包和摄像框架到使用PC和3 Rasperry Pips的正常通信能力的一般信号。在使用两个网络系统上测试了ECD-DS的运行。在使用两个网络上测试了NDDS系统,在使用两个网络上显示数据和数据传输系统时,显示数据和数据流流流流流流数据传输系统运行的运行的测试了两个测试。