SOE intelligent module

Abstract

The invention discloses an SOE intelligent module, which comprises a first data communication interface, a second data communication interface, a third data communication interface, a signal acquisition detecting interface, a main module CPU processor and a secondary module CPU processor. The first data communication interface and the second data communication interface which form a redundant data transmission passage are connected with the main module CPU processor, the third data communication interface which is a module real-time clock synchronous signal transmission passage is connected with the secondary module CPU processor, the signal acquisition detecting interface is respectively connected with the main module CPU processor and the secondary module CPU processor, the main processor is in charge of acquiring conventional digital signals, and the secondary processor is in charge of acquiring SOE events to guarantee real-time of the SOE events. The SOE intelligent module utilizes a parallel double-bus work mode to realize redundant data transmission and utilizes an external clock source to perform real-time clock synchronization, utilizes a timing self-correction method internally to reduce real-time differences among SOE modules, and then guarantees to accurately record occurring time of the events.

Description

technical field [0001] The invention relates to an IO module, in particular to an SOE intelligent module. Background technique [0002] With the increasing scale and complexity of thermal power units, the information of the production process is constantly changing. When the unit fails, it is necessary to find out the real cause and take corresponding measures. At this time, it is necessary to print the event retrospectively. When a fault occurs, often there will be a lot of information in the same second, and the sequence cannot be correctly sorted out, which brings great trouble to the accident analysis. The event sequence recording system (Sequence Of Event referred to as SOE system) can accurately reflect the real situation when the accident occurred, and it can obtain the information of each event with the resolution of ms level, which provides powerful evidence for accident analysis. The traditional SOE system uses a dedicated SOE module to collect signals. In this w...

AI Technical Summary

Problems solved by technology

The traditional SOE system uses a dedicated SOE module to collect signals, so that when the SOE module fails, all event records that occur at the same time will be lost

In addition, because the SOE module is dedicated, it will also cause inconvenience when wiring on site. Sometimes a long line will be laid to collect event information, which is inconvenient to use

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