Applying the moving average algorithm for the weight calculation task
Abstract
The research is devoted to the development of the weight-measurement algorithm for load-lifting cranes. The specifics of the problem is a long damping dynamic process with one amplitude-dominant harmonic. Based on the analysis of the literature, the filter (moving average) most applicable to the conditions of this problem has been found.
The research goal was to develop an algorithm for weight measurement using a moving average filter.
The stages of algorithm operation are described: determining the lifting start, searching for the peak load, determining the oscillation period, smoothing the data, determining the mass of the load with a defined accuracy.
Experimental comparison of the algorithms using a moving average filter and a direct averaging showed the independence of the algorithm on the repeatability. At the same time, the application of the developed algorithm made it possible to reduce the weighting time by 4...9 times (1.0. 6.1 sec).
The correlation between the measurement time and the accuracy of the buffer length calculation is revealed. This correlation determines the requirement for the analog-to-digital converter of the weighing devices.
It is concluded that the algorithm with a moving average filter is highly applicable to the task of measuring the load mass in conditions of static weighing (with switching off mechanisms).
Keywords
weighing algorithm,
crane scales,
moving average algorithm,
hoisting mechanism workload,
weight measurement
Supporting agencies: The authors express their gratitude to the research supervisor PhD Sergey D. Ivanov, employees of the Department "Lifting and Transport Systems" of N.E. Bauman Moscow State Technical University and the team of CJSC «ITC «KROS» for their help, recommendations, valuable comments and criticism.
About the Authors
A. V. Mikhalev
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Aleksandr V. Mikhalev - 6th year student of the department "Lifting and transport systems" of Bauman Moscow State Technical University.
Moscow, 2nd Baumanskaya str. 1, 105005
A. N. Nazarov
Bauman Moscow State Technical University
Russian Federation
Russian Federation
Alexander N. Nazarov - post-graduate student, assistant of the department "Lifting and transport systems" of Bauman Moscow State Technical University.
Moscow, 2nd Baumanskaya str. 1, 105005
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For citations:
Mikhalev A.V., Nazarov A.N. Applying the moving average algorithm for the weight calculation task. Machines and Plants: Design and Exploiting. 2023;(2):44 - 57. (In Russ.)
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