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Method for verifying the integrity of data transmission between a main upstream unit and a main downstream unit
Method for verifying the integrity of data transmission between a main upstream unit and a main downstream unit
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机译：验证主上游单元和主下游单元之间的数据传输的完整性的方法
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摘要
A method for verifying the integrity of data transmission between a main upstream unit (10a) and a main downstream unit (20a). The method includes the implementation of the following steps: a data-processing module (11a) of the main upstream unit (10a) generates a first frame (T1) including a packet (P1) of data to be transmitted and a cyclic redundancy code (E1) of the packet (P1); encapsulates the first frame (T1) in a second frame (T2) which also includes a cyclic redundancy code (C1) of the first frame (T1); encapsulates the cyclic redundancy code (E1) of the packet (P1) in a third frame (T3); the data-processing module (11b) of the at least one auxiliary upstream unit (10b) compares each of the cyclic redundancy codes (E1) extracted from the first frame (T1) with those extracted from the third frame (T3); and confirms the integrity of data transmission to the main downstream unit (20a) only if the comparison is positive.
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机译：一种验证主要上游单元（ 10 a ）和主要下游单元（ 20 a）之间数据传输完整性的方法）。该方法包括以下步骤的实现：主要上游单元（ 10 ）的数据处理模块（ 11 a ） a ）生成第一帧（T 1 ），该帧包括要发送的数据包（P 1 ）和循环冗余码（E 1 ）的数据包（P 1 ）;将第一帧（T 1 ）封装在第二帧（T 2 ）中，第二帧（T 1 ）包含循环冗余码（C 1 ）第一帧（T 1 ）;在第三帧（T 3 ）中封装分组（P 1 ）的循环冗余码（E 1 ）;至少一个辅助上游单元（ 10 b ）的数据处理模块（ 11 b ）进行比较从第一帧（T 1 ）提取的每个循环冗余码（E 1 ）与从第三帧（T 3 提取的） ）;并且只有在比较结果为肯定的情况下，才能确认到主下游单元（ 20 a ）的数据传输的完整性。
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