A digital twin for 3D path planning of large-span curved-arm gantry robot

Wang, Wenna; Ding, Weili; Chen, Hua; Zhang, Heng; Feng, Haibing; Yao, Yao

doi:10.1016/j.rcim.2022.102330

Cited by 34 publications

(10 citation statements)

References 17 publications

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“…• To the authors' knowledge, it represents the first attempt to automatize camera arrangement for activity monitoring in particle accelerators. • It extends the recent proposal in [3] of using the Unity game engine [23][24][25] to design procedures for this kind of facility. The goal is to benefit from those resources to build independent objective functions instead of tailoring models.…”

Section: Introductionmentioning

confidence: 70%

Automatic placement of cameras in a particle accelerator using a 3D engine and computational optimization

Cruz,

Rouret,

Ortigosa

et al. 2024

Preprint

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Particle accelerators have high-radiation parts requiring remote maintenance tasks, which involve using cameras generally placed by human experts. This work addresses camera placement through black-box global optimization. This approach allows opting for automated solutions and relieving experts of that responsibility. The formulation of the objective function hides the environment-specific placement constraints and shows domain ones only. The proposed methodology allows the use of regular meta-heuristics for standard black-box box-constrained problems, as it is only necessary to honor the bounds of variables. Accordingly, the optimization algorithm used is the genetic algorithm provided by the Global Optimization Toolbox of MATLAB. The objective function computation relies on the simulation capabilities of the widespread Unity game engine. It brings us an integrated framework for defining the target process to consider and for checking the different proposals visually. Based on this framework, this work reconstructs the virtual reality simulation of a maintenance task in a particle accelerator. The results obtained show that the camera positioning achieved by the proposal for four cameras and one target process outperforms the arrangement defined by a human expert.

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Section: Introductionmentioning

confidence: 70%

Automatic placement of cameras in a particle accelerator using a 3D engine and computational optimization

Cruz,

Rouret,

Ortigosa

et al. 2024

Preprint

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show abstract

“…In the manufacturing domain, DT technology has actually been widely adopted in all types of manufacturing and production systems, such as robot arms, apart from those PLC controlled facilities. For instance, DT has been applied for online/remote programming of robot work cells [10,11], enabling trajectory replication with minimal latency. The work reported in [12] highlights the application of DT technology in modern manufacturing enterprises.…”

Section: Related Workmentioning

confidence: 99%

A Digital Twin Platform Integrating Process Parameter Simulation Solution for Intelligent Manufacturing

Wang,

Yang,

Zhang

et al. 2024

Electronics

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The present work aims to develop a digital twin system typical of intelligent manufacturing applications, which has integrated visualization technologies, as well as the process parameter simulation solution. The application under consideration is a typical machining process, with a gantry machine tool controlled by Siemens Programmable Logic Controller(PLC) S7-1200. With the establishment of dual-directional data communication between the physical machine tool and its virtual counterpart based on TCP/IP protocol, real-time visualization, monitoring, and control of the entire working process can be achieved. Furthermore, we integrated with the digital twin system as a solution for real-time process parameter simulation based on finite element modeling (FEM), which enables the real-time monitoring of necessary process parameters, e.g., surface deformation, during the machining process. A preliminary experiment was conducted to validate our proposed digital twin system, and the results demonstrated that our proposed method has satisfactory performance in terms of both control and monitoring of the traditional machining process, and synchronization between the physical and virtual models is also proven to be positive with minimal latency.

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“…Since the digital twin can reflect the dynamic mapping of physical products and their digital counterparts, it is considered the next wave of modeling, simulation, and optimization technologies [2]. Since the concept of the digital twin was introduced, it has been applied to many industrial fields, such as intelligent robots [3,4], AGV carts [5],…”

Section: Introductionmentioning

confidence: 99%

Fusion method for digital twin model of a production line

Liu,

Wang,

Huang

et al. 2024

Int J Adv Manuf Technol

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Digital twins have attracted more and more attention in the past few years. To put digital twins into practice, a large number of modeling approaches have been proposed, vast amounts of data have been collected, and their accuracy has been improving. However, current research has paid insufficient attention to the multi-scale features of the shop floor, which hinders the effective application of the digital twin shop floor. To address the problem of how to achieve effective multilevel and multi-dimensional fusion of digital twin models with production process data, this paper first proposes a structured data modeling framework for sorting out all the production process data collected in real-time; and then proposes a multi-level fusion framework for supporting the fusion of real-time data and twin models from the unit level to the system level. The method judges the parsed received data streams through the full-factor semanticization framework, and at the same time fuses the parsed data streams with the constructed full-factor twin model from multiple dimensions and layers, forming a twin model fusion method with real-time data streams as the blood and twin model as the skeleton. Finally, the micro-assembly-based production shop environment is selected as a case study to verify the correctness and feasibility of the proposed data grooming framework, data, and model fusion method.

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A digital twin for 3D path planning of large-span curved-arm gantry robot

Cited by 34 publications

References 17 publications

Automatic placement of cameras in a particle accelerator using a 3D engine and computational optimization

Automatic placement of cameras in a particle accelerator using a 3D engine and computational optimization

A Digital Twin Platform Integrating Process Parameter Simulation Solution for Intelligent Manufacturing

Fusion method for digital twin model of a production line

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