A multi-channel data acquisition board of an aluminum electrolytic cell control machine and a multi-channel data acquisition method

Abstract

The invention discloses an aluminum cell control machine multi-path data collection board and a multi-path data collection method. The multi-path data collection board is arranged between an aluminumcell and an aluminum cell control machine; two data memorizers are arranged in multi-path data collection board, two memorizers execute time-shared read-write operation, thereby guaranteeing that a reading channel of at least one memorizer is opened for a cell control machine bus at any moment, the condition that the cell control machine cannot read the memorizer content when performing refreshingon the multi-path data collection board is avoided, the data stored on the collection board can be read when the cell control machine accesses the corresponding address at any moment, a transmissionquantity requirement for collecting a large amount of data is satisfied, the data transmission efficiency is improved, and a real-time control requirement of the data receiving speed is satisfied.

Description

technical field [0001] The invention relates to the technical field of electrolytic aluminum, in particular to a multi-channel data acquisition board of an aluminum electrolytic cell control machine and a multi-channel data acquisition method. Background technique [0002] The circuit of aluminum electrolytic cell control machine (hereinafter referred to as: cell control machine) is a dedicated and relatively closed system, which is responsible for collecting various data of aluminum electrolytic cell (exclusive equipment for electrolytic aluminum industry) and controlling the working status of electrolytic cell. With new electrolysis process development requirements, more sensors are needed to collect more data of the aluminum electrolysis process. Therefore, in the process of technical transformation of the old electrolyzer, it is necessary to add multi-channel analog data to the tank control machine system, but the original tank control machine spare input interface is ex...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-channel data acquisition board and a multi-channel data acquisition method for an aluminum electrolytic cell control machine to solve the problem that the data receiving speed of the input interface of the existing tank control machine cannot meet the real-time control requirements and the data transmission efficiency is low question

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