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CAN总线是一种多源信号共同传输的通路,其功能允许多个信息源分时传送给多个目标。CAN总线分为单向总线和双向总线,其中单向总线信息传输方向为固定从源头传向负载;双向总线信息传输方向可以改变,即总线各端的部件既可以是信息源又可以是传输目标。目前,CAN信号传输介质为双绞线,双绞线可抑制电磁感应干扰,被广泛应用于网络通信领域。应用CAN总线技术的集装箱正面吊如果出现发动机不能启动或突然熄火、变速器不能换挡或者跳转到空挡等故障时,可能是其动力系统CAN总线存在故障。
CAN bus is a multi-source signal common transmission path, its function allows multiple sources of information transmitted to multiple targets. CAN bus is divided into one-way bus and two-way bus, in which one-way bus information transmission direction is fixed from the source to the load; bidirectional bus information transmission direction can be changed, that is, the bus terminal components can be both information source and transmission target. At present, CAN signal transmission medium is twisted pair, twisted pair can inhibit the electromagnetic induction interference, is widely used in the field of network communications. CAN bus technology application of the container when the crane in the event of an engine can not start or suddenly turn off, the transmission can not shift or jump to neutral and other failures, the power system may be faulty CAN bus.