Data collection method of wave recording module

Abstract

The invention discloses a data collection method of a wave recording module. The data collection method comprises the following steps: (a) the dead zone and the sampling period of each channel of the wave recording module are set; (b) the wave recording module samples an AD module according to the sampling period, and processes the sampled data; (c) the recording module periodically transmits data to be uploaded to a transmission data array; (d) the wave recording module calculates whether the data in an uploading data array is in the dead zone according to the set dead zone, if no, discarding the data; and (e) a wave recording input module transmits data to a DPU (Data Processing Unit) controller according to a prescriptive communication protocol in packet. The data collection method can reduce the communication amount of the system so as to improve the collection and processing real-time performance of the system.

Description

technical field [0001] The invention relates to a data acquisition and processing method, in particular to a data acquisition method of a wave recording module, which is applied to an SOE system of a large-scale decentralized control system. Background technique [0002] SOE (Sequence of Events) system is an important subsystem for abnormal records in various automatic control systems, and can be widely used in automatic control occasions in nuclear power, thermal power, chemical, construction and other industries. The function of the SOE system is to record the time and event type of the failure or abnormality. The time of event occurrence, the interval and sequence of the first event and chain events recorded by it are the most important basis for system failure and abnormal analysis. The SOE system is mainly composed of workstations, industrial Ethernet switches, SOE controllers, wave recording input modules (standard analog input modules) and SOE input modules (switch i...

AI Technical Summary

Problems solved by technology

[0004] If the jitter of the recording signal is not controlled by a certain algorithm, a large amount of recording input data will generate a large number of data with no practical value for the SOE system, which will lead to a decrease in the communication between the card and the DPU and the real-time signal processing time. The delay increases the number of system communications and affects the real-time performance of system acquisition and processing. Therefore, it is necessary to improve the data acquisition and processing method of the existing wave recording module.

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