Method and system for recording, synchronizing and analysing data by means of analysis devices which are spatially distributed in a communication network

摘要

A method and a system for recording, synchronizing and analyzing data transmitted between spatially distributed devices of a communication network using spatially distributed analysis devices, wherein the data are received by at least two analysis devices looped into the communication network, and wherein the received data are marked by means of a synchronization signal which is simultaneously received by the analysis devices. In order to simplify the recording, synchronization and analysis of data by means of spatially distributed analysis devices, provision is made for the analysis devices to store data frames of the received data in data files, wherein each received data frame is marked with a time stamp of a local time of the receiving analysis device, and wherein time synchronization events are produced by means of the received synchronization signal in each of the analysis devices.

主权项

1. A method for recording, synchronizing and analyzing data transmitted between spatially dispersed devices within a communications network including a real-time Ethernet network, by means of spatially dispersed analysis units, the method comprising the steps of:
receiving the data by at least two analysis units looped into the communications network, marking the received data using a synchronization signal received simultaneously by the analysis units, storing data frames of the received data in data files, marking each of the data frames with a time stamp of a local time of the analysis units, generating time synchronization events simultaneously using the received synchronization data in each of the analysis units, during recording of the data files in each of the analysis units, as pseudo frames between the data frames for later synchronization, coordinating the local time stamp contained in the data frames in reference to the inserted time synchronization events, encoding specific information on the analysis units as additional information in each data frame, and compiling the individual data files received during measurement of the individual analysis units in reference to the simultaneous time synchronization events, so that the data frames recorded by the analysis units are in the correct temporal sequence.