Patent ID: 11876608
Assignee: HITACHI, LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method to manage data packets from time synchronized apparatuses through a network scheme, the method comprising:
receiving, by a processor, the data packets from the time synchronized apparatuses via redundant communication paths, each of the data packets having a time identifier which is with a time synchronized by and across the time synchronized apparatuses;
selecting, by the processor, ones of the data packets received within a certain time period based on a current time associated with time synchronized by the time synchronized apparatuses;
selecting, by the processor, packets having a same time identifier and a same function identifier from the selected ones of the data packets received in real-time to ensure reliability through redundancy;
processing, by the processor, the selected packets having the same time identifier and the same function identifier to provide output to a controller application of the time synchronized apparatuses; and
for a data packet of the data packets being received by the processor at a time past a scheduled time of use as stipulated by associated time identifier, determining occurrence of transmission abnormality associated with the data packet, removing the data packet from selection;
for the redundant communication path exhibiting multiple instances of communication delays associated with time identifiers of a number of data packets:
identifying the redundant communication path as being abnormal, and
modifying the redundant communication path to address abnormality.