METHOD FOR VERIFYING THE INTEGRITY OF DATA TRANSMISSION BETWEEN A MAIN UPSTREAM UNIT AND A MAIN DOWNSTREAM UNIT

摘要

The present invention is a method for verifying the integrity of a data transmission between a main upstream unit (10a) and a main downstream unit (20a), said method comprising the steps of: Generating a first frame (T1) including a code (E1) by the data processing module (11a) of the main upstream unit (10a); Encapsulating the first frame T1 within the second frame T2, also including the cyclic redundancy code C1 of the first frame T1; Encapsulating the cyclic redundancy code E1 of the packet P1 in the third frame T3; Comparing each of the cyclic redundancy codes E1 extracted from the first frame T1 and the third frame T3 by the data processing module 11b of the at least one auxiliary upstream unit 10b; And confirming the integrity of data transmission to the main downstream unit 20a only when the comparison is positive.