Control system and method for packaging, filling or dosing

Abstract

The invention discloses a control system and method for packing, filling and batching control. The control system for packing, filling and batching comprises a filtering module and a comparison module. The filtering module is used for removing an interference signal in weighing data, and the filtering module comprises a first stage filter and a second stage filter; the first stage filter is used for removing a first interference signal in the weighing data and the frequency of the first interference signal is higher than a first threshold value; the second stage filter is used for removing a second interference signal in the weighing data and the frequency of the second interference signal is lower than a second threshold value; the comparison module comprises a first comparison control module and a second comparison control module; the first comparison control module is used for controlling a technology process including packing, filling or batching according to weighing data of the filtering module after the interference signal is removed; and the second comparison control module is used for controlling the operation of the first comparison control module and the filtering module according to the technology process including the packing, filling or batching and the interference information. The system and method for controlling packing, filling or batching can optimize filtering accuracy and speed in the technology process.

Description

technical field [0001] The invention relates to a control system and a control method used in the control application of packaging, filling or batching in the field of weighing control. Background technique [0002] In the process of packaging, filling or batching applications, the speed requirements for packaging, filling or batching equipment are getting higher and higher, and the focus of this demand is on weighing controllers or weighing control instruments. The main competitive index of filling or batching control system, improving this index can improve the economic value and technical value of packaging, filling and batching control system. [0003] In the process of packaging, filling or batching, the packaging, filling or batching control system repeatedly completes the packaging, filling or batching process according to the process control equipment cycle. The entire process control cycle is divided into the initial clearing stage, fast feeding stage, Slow feeding...

AI Technical Summary

Problems solved by technology

[0006] In high-speed packaging, filling or batching applications, the existing technologies have the following deficiencies: 1. The selected filter algorithm takes a long time to establish a steady state (the unit step response is long), causing two adjacent comparator control The time interval between them is long, which affects the control speed of packaging, filling and ingredients; 2. The same filtering and comparator control methods are used at different stages of the process, resulting in a mismatch between the data processing method and the process, which in turn affects the packaging. , filling and batching control performance

3. During the technological process, there are low-frequency periodic feeding uneven interference caused by feeders or low-frequency interference caused by equipment shaking caused by continuous lateral impact of materials on weighing equipment. Such interference has a serious impact on system speed and accuracy

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