A virtual factory you can feel

December 06, 2013

Major changes to industrial plants are looming on the hori- zon. Customers are demanding increasingly more custom- ized, differentiated products. Manufacturers are experiencing a fourth industrial revolution: After water, steam and electric power, electronics and IT now networked sensors and sim- ulation are moving into the factory buildings: the products of the future know where they are, know their history, their current status and the production steps that are still pending in order to arrive at a finished product. To make this poss- ible, virtual and real world have to mesh more intensivelly.

Miniature model connects digital and real world

At EuroMold researchers of the Fraunhofer Institute for Computer Graphics Research IGD demonstrate how one can bridge this gap. The scien- tists constructed a miniature factory - including a small robot that moves barrels. The re- searchers observed the miniature factory with a camera. With ten images per second it is constantly recording the status in the real world and transmitting these data into the virtual.

Visitors of the booth, for example, are able to plan the route for a forklift. While the virtual one moves through the continuously digitized plant hall, the system analyzes where and when a collision may arise between the forklift and a real robot. In the miniature factory, it is poss- ible to rearrange the barrels. If the visitor sticks his hand in the path of the virtual forklift, the system immediately detects the obstruction. "This is the first step toward cyber-physical equivalency. A condition, where it is possible to switch between any real and virtual world. So far the term involves only geometric expressions. Others, such as those that include the function and behavior, are expected to follow," says Prof. André Stork, head of department at Fraunhofer IGD.

Cyber-physical equivalency, Industry 4.0 - what is exactly concealed behind this designat- ions? "Whereas the production processes today are centrally consolidated, with Industry 4.0, each item comes furnished with artificial intelligence, be it machine, system, workpiece or tool," adds Prof. Uwe Freiherr von Lukas, who heads the Rostock, Germany location of the Institute. In everyday terms, that means machines and robots mutually exchange infor- mation, make their own decisions and manage themselves - in conjunction with the participating human beings.

Manufacture low-volume production and customized products cost-effectively

This "new" industry should secure the position of Germany and Europe as location for industry. While Asia leads in mass production by a nose, Europe's future lies in the product- ion of customized pieces and low volume production. And this is precisely what flexible Industry 4.0 is intended to do: production lines can be redesigned and adapted so quickly that even low-volume production and customized products can be manufactured cost- effectively. Until now, business operations merely use the path from virtual to real: They plan and optimize the production lines on the computer, and then transmit them into reality. The return trip is only made rarely if at all. If something changes in the production process, this is only transferred to the virtual system on a case-bycase basis. "At EuroMold our mini- ature factory shows, that this might take a different course already today," says Freiherr von Lukas.
-end-


Fraunhofer-Gesellschaft

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