总线式船用应急车钟设计

Design of CAN-bus Marine Emergency Telegraph

船用电子应急车钟是船上驾驶室主控车令控制器的备份控制设备。在应急情况下,通过相应按钮或选择开关操作向"机舱"和"集控室"发送用车指令,保证船舶正常行驶。应急车钟由发送器,复示器和接收器三部分组成。具有驾驶室、集控室和机舱三地传递显示车钟命令、报警等功能。系统以单片机为控制核心,发送器、复示器和接收器间采用CAN总线通讯,具有配置灵活和比老式车钟的电缆芯线少、节约造船费用等优点。

Marine electronic emergency telegraph is applied to a driving control of ships＇ electronic communication device which is the backup of main engine telegraph on board, and the order can be send to the ＂ control room ＂ and ＂engine room ＂ to make sure that the ship can sail safety under emergency situation The emergency telegraph has three parts like the transmitter, repeater and receiver. It can provide transmission of information during bridge, control room, engine room, and also has the function alarm. The design use MCU as the control center, and use CAN bus as the communication carrier during transmitter, repeater and receiver, having the configuration flexibility and less wire compared to old-fashioned telegraph.