Unmanned construction machineries have been developed to meet the precise construction design requirements and improve productivity. As indispensable equipment for the earthwork process, bulldozers with unmanned design and automatic operation are of considerable importance. This paper presents an unmanned bulldozer for automatic construction, and the earthwork monitoring system is realized on the basis of 5G. The perception and communication systems are deployed on the basis of the design of unmanned bulldozers without a cab. The mechanical parameters of the unmanned bulldozer are collected through CAN by Tbox and communicated with the digital cloud platform through 5G. Furthermore, the Tbox receives the construction instructions from the digital cloud platform and sends them to the mechanical actuator of the unmanned bulldozer via CAN. Finally, the test verifies the high reliability and ultra-low latency of the earthwork monitoring system based on 5G for the unmanned bulldozer.

开发无人施工机械是为了满足精确的施工设计要求并提高生产力。作为土方工程必不可少的设备，无人化设计、自动化操作的推土机具有相当重要的意义。本文提出了一种自动化施工的无人推土机，基于5G实现了土方监测系统。感知和通信系统是在无驾驶室无人推土机设计的基础上部署的。无人推土机的机械参数由Tbox通过CAN采集，并通过5G与数字云平台通信。此外，Tbox接收来自数字云平台的施工指令，并通过CAN发送给无人推土机的机械执行器。最后，