The simulation is part of BMW’s plan to use more artificial intelligence in manufacturing. Grüeneisl says machine-learning algorithms can simulate robots performing complex maneuvers to find the most efficient process. Over time, BMW wants to use the simulation to have robots learn how to perform increasingly complex jobs.BMW used a software platform called Omniverse, developed by the chipmaker Nvidia , to recreate the Regensburg production line. Last year, BMW said it was using an AI platform from Nvidia called Isaac to train robots for certain new tasks.
“In the future, I am very positive that we can just put a new robot in this facility, and say, ‘OK, talk with the other robots and find the best way to produce this body,’” Grüeneisl says.
Manufacturers have used computer simulations to hone their assembly lines for some time. But Omniverse allows the entire production process to be simulated with photo-realistic details, and with physical properties like gravity and different materials. It’s possible to lay out the production process from start to finish, and to see how changes to one part might have knock-on effects on another. It is easier to build a more complex virtual environment because different 3D models can be imported into the system. Omniverse uses an open file standard compatible with numerous computer-aided design packages.
The software will also simulate avatars of human workers grabbing parts and tools, and assembling components, to find the best procedure and minimize ergonomic problems. It might also make it possible for fewer workers to complete a particular job, Grüeneisl says.“We do AI simulation of how people move around the factory,” says Richard Kerris, general manager for Omniverse at Nvidia. He calls the project “one of the most complex simulations that's ever been done.”
There’s growing interest in using AI to control robots and other industrial machines. Encouraged by recent progress in AI, some startups are focused on having robots learn in simulation how to perform fiendishly difficult tasks like grasping irregular objects , technology that could eventually help automate much ecommerce and logistics work. This often uses an AI approach called reinforcement learning , which involves an algorithm experimenting and learning, from positive feedback, how to achieve a specific goal.
“This is definitely the way to go,” says Ding Zhao, a professor at Carnegie Mellon University who focuses on AI and digital simulations. Zhao says simulations are crucial to using AI for industrial applications, partly because it is impossible to run machines through millions of cycles to gather training data. In addition, he says, it’s important for machine-learning models to learn by experimenting with unsafe situations, such as two robots colliding, which cannot be done with real hardware. “Machine learning is data-hungry, and collecting it in the real world is expensive and risky,” he says.Willy Shih, a professor at Harvard Business School who specializes in manufacturing technology, says the sophistication of simulation has been increasing steadily, and he says simulation primarily saves time and money by preempting future manufacturing problems.
Shih says there is plenty of hype around AI for manufacturing but adds, “There are lots and lots of applications” for the technology too.Nvidia CEO Jensen Huang discussed BMW’s use of Omniverse during his keynote at the company's annual GTC conference, held virtually on Monday. Nvidia initially made graphics chips for gaming but broadened its focus when these chips proved adept at training AI programs. The company has since leapt into several other industries where AI is important, including automotive and medical imaging.
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