Digital Dices: Towards the Integration of Cyber-Physical Systems Merging the Web of Things and Microservices

Mena, Manel; Criado, Javier; Iribarne, Luís; Corral, Antonio

doi:10.1007/978-3-030-32065-2_14

Cited by 12 publications

(8 citation statements)

References 8 publications

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“…Another term for DT block -Digital Dice -was proposed in [44] when authors used Web of Things [45] models to create multiple microservices, each to handle a particular aspect of an actual IoT device. The authors also proposed an architecture to handle multiple Digital Dices and their replicas.…”

Section: Related Workmentioning

confidence: 99%

Reference Architecture for Running Computationally Intensive Physics-Based Digital Twins of Heavy Equipment in a Heterogeneous Execution Environment

2022

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Physics-based digital twins for heavy equipment provide a powerful tool for improving operation and maintenance activities. In contrast to data-driven models, they present more explainable and confident results but require more computational power. Besides the problem of physics-based digital twins creation, there is a task of managing their lifecycle, including their execution, maintenance, storage, and updating. The features distinguishing this kind of digital twins are the mobility of the real counterpart, operation in remote locations, long lifecycle, information sensitivity, and gaps in information technology awareness among the equipment owners and users. This paper presents a methodology and reference architecture for a set of interconnected systems capable of running digital twins of heavy equipment in such conditions. A data model for preserving digital twin-related information for decades of machine operation is described. Operating-system-level virtualization technologies are used to run digital twins in a heterogeneous execution environment. An example of the reference architecture implementation is presented for the physics-based digital twins of a mobile log crane. The experimental part of the paper includes a comparison of computing time for different types of digital twins in different execution environments. It highlights the peculiarities related to running physics-based digital twins in containers. Experiments were performed using the Amazon cloud platform, an edge computing system represented by a single-board microcomputer based on ARM architecture, and a virtual machine on a desktop personal computer. Experimental results show that physics-based digital twins for the analysis of the multi-body dynamics can be run within the proposed architecture with real-time performance in all three types of execution environments. The paper demonstrates the practical implementation of physics-based digital twins for heavy equipment and defines directions for future research in this field.

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Section: Related Workmentioning

confidence: 99%

Reference Architecture for Running Computationally Intensive Physics-Based Digital Twins of Heavy Equipment in a Heterogeneous Execution Environment

2022

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“…Employing microservices in the building of a digital twin has been proposed by several papers [6], [8], [9], [18]. Alasaam et al [8] used Apache Kafka to enable stream data processing with microservices.…”

Section: Related Workmentioning

confidence: 99%

“…The paper does not describe in detail how the microservices communicate and if it is possible to use already existing systems for creating a digital twin. Mena et al [18] presented the Digital Dice concept that relies on microservices and is based on a digital twin. Microservices are responsible for implementing the features of the Digital Dice, and a Digital Dice can be generated from the Web of Things (WoT) Thing Description (TD) document.…”

Section: Related Workmentioning

confidence: 99%

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Data Link for the Creation of Digital Twins

et al. 2020

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“…We developed the concept of Digital Dice (DD) to face the accounted issues [Mena et al 2019]. Digital Dice is a servient software of the Web of Things based on microservices capable of handling the interaction and virtualization of IoT devices leveraging the advantages of microservices.…”

Section: Introductionmentioning

confidence: 99%

Assembling the Web of Things and Microservices for the Management of Cyber-Physical Systems

Mena¹,

Criado²,

Iribarne³

et al. 2021

jucs

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Cyber-Physical Systems (CPS) and Internet of Things (IoT) devices are handled by numerous different protocols. The management and connection to those devices tend to create usability and integrability issues. This brings about the need for a solution capable of facilitating the communication between different platforms and devices. The Web of Things (WoT) describes interfaces and interaction patterns among things, thereby abstracting itself from the underlying protocols used to manage those things and their implementation strategies. This paper describes the concept of Digital Dice, an abstraction of IoT devices and CPS capable of leveraging the advantages of microservices architectures and inspired by the concept of Digital Twins. A Digital Dice is a servient system of the WoT domain that represents a device by the features of the device, hence different WoT description models result in different microservices related to the particular thing. The paper explores the definition of Digital Dices and the conversion between WoT Thing Description Models and Digital Dices and the architecture that sustains the system.

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Digital Dices: Towards the Integration of Cyber-Physical Systems Merging the Web of Things and Microservices

Cited by 12 publications

References 8 publications

Reference Architecture for Running Computationally Intensive Physics-Based Digital Twins of Heavy Equipment in a Heterogeneous Execution Environment

Reference Architecture for Running Computationally Intensive Physics-Based Digital Twins of Heavy Equipment in a Heterogeneous Execution Environment

Data Link for the Creation of Digital Twins

Assembling the Web of Things and Microservices for the Management of Cyber-Physical Systems

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