Accurate system analog quantity processing method

Abstract

The invention discloses a system analog quantity accurate processing method, which is based on an analog quantity processing system and comprises a power supply module, an input module, a control module, an output module and a display module. The method comprises the following operation steps: 1) acquiring switching value data; 2) selecting a selection input dialog box of a corresponding type on a display interface of a computer display, checking, and filling the obtained switching value data measurement range; 3) for different types of switching value data, matching a corresponding combined algorithm according to a preset configuration instruction in the PLC, and carrying out data processing; and 4) outputting the processed analog quantity data. The method is mainly applied to a hoisting system of a main shaft and an auxiliary shaft, the precision of PID closed-loop control is improved through accurate processing of links such as acquisition, processing and feedback of analog quantity, so that interference of various deviations and clutters is quickly handled, the safety of maintenance personnel, post personnel and the whole hoisting system is improved, faults are avoided, and the safety of the whole hoisting system is improved. And the lifting efficiency of the system is improved.

Description

technical field [0001] The invention relates to the technical field of mine hoisting systems, in particular to a method for accurately processing analog quantities of a system. Background technique [0002] In the process of coal mining, production and transportation, there is a large amount of analog data in the mine hoisting system that needs to be processed, and the processing process is cumbersome; and the PID control algorithm in the analog processing is a combination of proportional, integral and differential control. The algorithm requires high precision, and is prone to problems such as overshoot and frequency modulation caused by inaccurate processing, such as the transformation and acquisition of analog quantities such as temperature, pressure, speed, current, and voltage, using various matching nested PLC programs. Correspondingly, for the internal analog conversion caused by the replacement of various old sensors or the addition of new sensors, the method of reco...

AI Technical Summary

Problems solved by technology

[0002] In the process of coal mining, production and transportation, there are a large amount of analog data to be processed in the mine hoisting system, and the processing process is cumbersome; and the PID control algorithm in the analog processing is a control that combines three links: proportional, integral and differential. Algorithms require high precision, and are prone to problems such as overshoot and frequency modulation caused by inaccurate processing. For example, the conversion and acquisition of analog quantities such as temperature, pressure, speed, current, and voltage are carried out by using various matching nested PLC programs. Correspondingly, for the internal analog quantity conversion caused by the replacement of various old sensors or the addition of new sensors, the method of recombining the data modules in the PLC is usually used, but the newly added data modules make the cost increase significantly, and the data expansion is easy to reach the limit. The increase in the number of occupations makes it impossible to use effectively, resulting in the inability to adjust or eliminate the deviation or clutter within the minimum error range in a short period of time, reducing the accuracy of the control process