本文件描述了用于土方、采矿和道路施工应用的连接设备和移动机器之间的车载J1939通信接口，以实现ISO 21815-1中定义的基于SAE J1939协议的干预性避碰行动。该接口旨在由独立于原始机器集成的防撞系统（CAS）设备使用，该设备提供干预信号，以减慢、停止或防止机器运动。本文件定义的协议也可用于为碰撞警告系统（CWS）提供输入信息。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document describes the on-board J1939 communication interface between a connected device and mobile machines for use in earth-moving, mining and road construction applications to enable interventional collision avoidance actions defined in ISO 21815-1 based on the SAE J1939 protocol. This interface is intended for use by a collision avoidance system (CAS) device integrated independently from the original machine providing intervention signals to slow down, stop or prevent motion of the machine. The protocol defined by this document can also be used to provide input information for a collision warning system (CWS).All current amendments available at time of purchase are included with the purchase of this document.