A digital twin is a digital replica of a physical device. The session at ARC Industry Forum “Digital Twins for Improving Operations and Maintenance” provided an explanation of the types of digital twins in industry and their applications. During plant design and build, a “project digital twin” provides a means to simulate and improve FEED, design, construction sequencing, and commissioning. For operations, the “performance twin” uses real-time data to assess status for predictive maintenance, process optimization, and operator training. A 3D digital twin of a plant can also be used to navigate to a virtual representation of an asset to access information about the real asset, which is the topic of this case story.
Digital Twin for Off-site Support
During ARC Forum session exploring digital twins in plants, CEO and Managing Director of Delta Drone International Christopher Clark presented his company’s approach to digital twins. This presentation provides a user case story by Rocketmine, a subsidiary of Delta Drone Group, for the application of a digital twin using Bentley Systems’ PlantSight software.
Plantwide Asset Information with Remote Access
Using a combination of laser scans and photogrammetry, Rocketmine created a 3D model of a mine processing plant using the PlantSight software. For asset information access, a portion of the point cloud representing an important asset was converted into a software object. Links to sources of information for that asset are added to the object. A user of the Bentley software can navigate through the 3D model to the asset, double click on the software object, and obtain current, federated information about the asset.
Remote Access with Augmented Reality
With the COVID-19 pandemic, plant operators need a means to obtain support from people not able to enter the plant. Using Trimble XR10 with an integrated HoloLens 2, a remote expert can see what a person in the plant sees and give them guidance. The expert can draw notations onto the display that both see. With HoloLens’ integrated 3D scanning capability, the notations remain fixed where they were drawn relative to the real objects in view – even when the person moves their head.
The software for the remote expert scenario comes with HoloLens. The on-site person will likely need the integrated hardhat. The remote expert can use an office grade Microsoft HoloLens device.
Mr. Hasenbroek demonstrated augmented reality for stepping through a previously written instruction sequence for changing the battery in a drone – an example of augmented reality being used to aid people in performing important procedures with which they are not familiar. He and Mr. Clark also demonstrated the remote expert scenario.
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Keywords: Digital Twin, Asset Management, Augmented Reality, 3D Model, ARC Advisory Group.