Data collection method of wave recording module

A data acquisition and data technology, applied in the direction of measuring devices, instruments, measuring electronics, etc., can solve the problems that affect the real-time performance of system acquisition and processing, SOE system has no practical value, real-time signal processing time delay, etc., to reduce the amount of communication data , Improve the input and output processing speed, improve the effect of real-time performance

Inactive Publication Date: 2011-09-07
SHANGHAI AUTOMATION INSTRAION CO LTD
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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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  • Data collection method of wave recording module

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] figure 2 It is a structural schematic diagram of the wave recording module used in the present invention. The wave recording module 4 that the present invention uses selects existing model to be STM32 101C8_48 controller, and STM32 selects AD7663 module 6 sampling channels, and transmits sampling data, selects channels by IO port, obtains sampling data by SPI bus, STM32 communicates with DPU by RS485 (Data Processing Unit) controller 5 communication, the DPU controller selects the existing controller of model STM32103Te76, receives the command issued by the DPU controller, processes according to the command, and sends the data back to the DPU controller through RS485.

[0018] image 3 It is a flow chart of data acquisition and processing of the wave recording module of the present invention. The data acquisition method of the wave recording ...

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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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 梁荣柳娟姜世岭
Owner SHANGHAI AUTOMATION INSTRAION CO LTD
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