NMEA-2000 SPECIFICATION CONVERSION MODULE OF MARINE ELECTRONICS INTERFACE

摘要

PURPOSE: A method is provided to use a vessel electronic device interface designed according to the existing NMEA-0183 without change of hardware such as replacement of a device in the NMEA-2000 standard, thereby reducing replacement cost and time resulted from change of a communication standard. CONSTITUTION: A reception unit converts a message transmitting through RS-422 of the NMEA-0183 communication protocol to the USART(Universal Asynchronous Receiver/Transmitter) communication protocol. The control and conversion unit analyzes and converts the converted message through the reception unit using an 8bit CAN MPU chip, AT90CAN128-16AU and outputs a NMEA-2000 type message. [Reference numerals] (AA) NMEA 0183 equipment; (BB) Receiving unit; (CC) Control and conversion unit; (DD) NMEA 2000 network