Cyber-Physical System Demonstration of an Automated Shuttle-Conveyor-Belt Operation for Inventory Control of Multiple Stockpiles: A Proof of Concept

Abstract

Smart manufacturing in the so-called Industry 4.0 age pushes the research and development of laboratory-scale proof of concepts before its deployment in pilots and real-size equipment. As such, we present a cyber-physical system (CPS) demonstration in the mining industry field engineered to autonomously manage the handling of solids flowing in a conveyor-belt that drops materials in containers, forming multiple stockpiles per belt. The CPS operates to control multiple stockpiles' inventories using mixed-integer optimization that minimizes the square deviation of the measured inventory to their targets (heights). Within the sensing-optimizing-actuating (SOA) cycle, the CPS demonstration is performed as follows. First, the sensing (data measurement, data processing, and system evaluation) uses a deep neural network in real-time to assess the level of materials stored in transparent containers. Second, the optimizing (mathematical programming, optimization techniques, and decision-making capabilities) is performed using a flowsheet network formulation called unit-operation-port-state superstructure (UOPSS) that permits a fast solution for the position-idle-time-varying discrete manipulated variables as operational schedules. Third, the actuating (cyber-physical integration) implements a physical actuation solution through an integrated CPS environment. According to the findings of our experimentation, stockpiling process control in a smart manufacturing context has enormous potentials to control multiple stockpiles' inventory autonomously.

Juostinių transporterių elektros energijos sąnaudų mažinimo priemonės

“…Įgyvendinant Pramonės 4.0 koncepciją, intelektuali gamyba, pagrįsta fizinių ir kibernetinių sistemų integracija, yra naujas sprendimas tolesniam energijos taupymui ir išmetamųjų teršalų mažinimui (Jazdi, 2014;Mu et al, 2020;Yaqot, Menezes, and Kelly, 2023). Platus juostinių transporterių naudojimas jūrų uosto krovos kompanijose kraunant birius krovinius į laivus, gamybinėse įmonėse transportuojant birias žaliavas į technologinius įrenginius verčia ieškoti būdų, kad juostinių transporterių našumas išliktų nepakitęs, o energijos sąnaudos mažėtų, todėl būtina identifikuoti faktorius, padedančius mažinti energijos sąnaudas eksploatacijos metu.…”