ONBOARD NETWORK SYSTEM AND METHOD FOR COMMUNICATION IN IT Russian patent published in 2021 - IPC H04L29/08 H04L12/24 

FIELD: communication systems.

SUBSTANCE: invention relates to an onboard network communication system over the railway transport network. The system contains devices of onboard alarm system (1), devices of train control and management system (2), devices of onboard network communication subsystem (3) and two duplicate independent communication subnets A and B. Devices (1) provide a direct access to first subnet A and second subnet B respectively. According to security levels, devices (2) and devices (3) are divided into devices of key subsystem with high security level (4) and devices of regular subsystem with low security level (5). Each of devices (4) provides an access of first subnet A and second subnet B by means of two or more communication interfaces. Devices (5) provide a direct access to first subnet A and/or second subnet B. There is an integration of network of onboard alarm system and network of train control and management system into a single network.

EFFECT: low complexity and high security of the system.

10 cl, 6 dwg