：利用RS485数据两线的硬件基础上，以较少的总线控制命令，实现RS485数据总线的时分复用功能，使总线上每一个节点均能平等地

发送数据，在软件设计上信号灯状态切换的时间同步不紊乱，通讯消息的收发有序不冲突以及通讯数据包的完整性-: Using hardware-based two-wire RS485 data on the bus with less control commands to achieve RS485 data bus time-division multiplexing function, so each node on the bus can transmit data equally, in the state of software design lights switched on Integrity time synchronization is not disorder, send and receive messages and orderly communication does not conflict and communication packets