AUTOMATIC STEERING DEVICE PROVIDED WITH MULTIPLE UNITS

PURPOSE:To improve expansion ability by providing a plurality of units having different functions for each unit and a transmission route for connecting these units with each other to transmit information, and by adding a unit having a desired function when expansion of performance is required. CONSTITUTION:An automatic steering device 8 comprises distributed function units such as an automatic steering unit 1, a steering control unit 2, a display operation unit 3, and a transmission route 9. The automatic steering unit 1 comprises an input azimuth part 44, a course setter 45, and a CPU 4 for calculating optimal steering angle, instructing the steering angle, and for carrying out communication and information transmission among the units. The steering control unit 2 comprises a steering control part 46 based on the instruction of steering angle, a steering alarm input part 49 to which an operational signal is added from each part of a steering control system, and a CPU 5 for carrying out communication and information transmission among the units. The display operational unit 3 comprises am operational part 43 for setting parameters for switching systems and modes, a display part 42, an alarm process part 7, and a CPU 6 for carrying out communication and information transmission among the units, and each function is processed in a distributed manner.