System and process for converting protocol between shipborne Beidou 2nd generation device and ship Ethernet

Abstract

The invention relates to a ship communication protocol conversion system and a conversion process, which are used for data exchange between a shipborne Beidou 2nd generation device and a ship Ethernet. According to the protection conversion system, a UART0 module is used for receiving and sending data of the shipborne Beidou 2nd generation device to perform communication; a Beidou 2nd generation protocol function module is used for identifying and processing Beidou 2nd generation positioning data, device state data and system log data, and sending a Beidou device instruction to the shipborne Beidou 2nd generation device; a protocol conversion module is used for performing encapsulation conversion on the data of the shipborne Beidou 2nd generation device and IEC 61162-450 standard data; an IEC 61162-450 protocol function module manages a physical layer, a data link layer, an internet layer, a transport layer and an application layer of a communication protocol stack through a logic device and an application process to establish a communication link; and a network interface module establishes a network connection with the ship Ethernet to perform communication. Therefore, the conversion system and process can enable the shipborne Beidou 2nd generation device to be used in the ship Ethernet meeting IEC 61162-450 standards, and a foundation is laid for the application of the shipborne Beidou 2nd generation device to the field of ships.

Description

technical field [0001] The invention relates to a ship communication protocol conversion system and a conversion process, which are used for data mutual exchange between ship-borne Beidou second-generation equipment and ship Ethernet. Background technique [0002] Due to its many advantages such as passive positioning, high positioning accuracy, and good real-time performance, the shipborne Beidou second-generation equipment has been more and more widely used in the field of ships. However, since the communication standard of the ship-borne Beidou II equipment adopts the "Beidou Satellite Navigation System User Terminal General Data Interface", this standard is not consistent with the standard of the ship Ethernet, which causes a lot of inconvenience to the use of the ship-borne Beidou II equipment. Increased construction difficulty and management costs. [0003] At present, the implementation standard of ship Ethernet is IEC61162-450 ("Maritime Navigation and Wireless Comm...

AI Technical Summary

Problems solved by technology

The current IEC61162-1 and IEC61162-2 (Maritime Navigation and Radio Communication Equipment and System Digital Interface Part 1: Single Talker and Multiple Receivers) are defined based on the serial port data format, and the corresponding IEC61162-450 standard does not specify the shipborne The method of Beidou second-generation equipment connected to the ship's Ethernet, using the usual serial port communication and Ethernet communication conversion solution cannot meet the requirements of the IEC61162-450 standard

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