Data redundancy acquisition communication system and communication method thereof

Abstract

The invention provides a data redundancy acquisition communication system and a communication method thereof. The communication system comprises a main acquisition link, an auxiliary acquisition link, an arbiter and a data processor, wherein the main acquisition link and the auxiliary acquisition link are connected to a signal system to obtain a first data packet; the main acquisition link and the auxiliary acquisition link respectively execute a first processing scheme to process the first data packet and then send the first data packet to the arbiter; the arbiter executes a second processing scheme, processes the first data packet and then outputs a second data packet; and the data processor is connected with the arbiter to obtain a second data packet and execute a third processing scheme so as to obtain the first format data to record / update a data table stored in the data processor, so that the existing redundant communication link is improved, the redundancy characteristic of the link is fully utilized, and the transmitted data is screened and processed, so the reliability of the downloaded data is ensured.

Description

technical field [0001] The invention relates to a communication system data acquisition link technology, in particular to a data redundancy acquisition communication system and a communication method thereof. Background technique [0002] In the existing communication system, when a link fails to collect data and then switches to another backup link, it takes extra time to judge whether the link is on or off, which leads to a long switching time and cannot transmit the collected data in time. It is fatal for some networks that need to collect information quickly. On the other hand, even if the backup link is switched, the data collection needs to be carried out again, so the time of the two data collections before and after will further lengthen the time required for the back end to receive the information, which will inevitably cause data delays. Such delays are intolerable for communication systems that require data to be updated in a timely manner. [0003] Therefore, t...

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Problems solved by technology

[0004] However, this simple redundant communication link is not suitable for all usage scenarios. For example, in the rail transit timetable update system, in order to keep the timetable information transmitted by the ATS (signal system) smoothly and timely, it is necessary to The smooth and stable communication link must be kept at all times, otherwise, once the data transmission is abnormal, the rail transit timetable update system will not be able to update the timetable information in time, resulting in the failure of the external publicized timetable to predict the train information in time, and hinder the rail transit Scheduling of internal operating systems

[0005] However, in this scenario, the timetable information sent by the ATS contains the aggregation of multiple data gathered by the ATS system from various systems / links, so even if the redundant communication link is simply set up in this scenario, it is impossible to know Whether the timetable information transmitted by the main / secondary link is complete and reliable, and it is impossible to know whether there are business logic problems in the data (because the ATS system used in the early rail transit has some bugs, such as: the ATS system is occasionally abnormal, not Update train information, such as not sending train departure information, not sending train arrival information, resulting in the data in the timetable cannot be deleted

The trains sent by ATS may also be cancelled, but no notification will be given, resulting in the trains not being deleted from the timetable), so technology is urgently needed to solve the above problems

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