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Manufacturing Competition Challenges University Teams to Stack a Better Pallet

Simulate an industrial robot performing a common but complex shop floor task

Published: Thursday, January 28, 2010 - 06:30

Pallet-Packing Robot: This simulation shows a robot in the middle of creating a pallet of boxes of mixed sizes. NIST engineers are seeking university teams to develop such simulations for a May competition.

Credit: NIST

(NIST: Gaithersburg, MD) -- The National Institute of Standards and Technology (NIST) is seeking university teams to participate in a 2010 Virtual Manufacturing Automation Competition, May 2–3, to simulate an industrial robot performing a common but complex shop floor task—stacking odd-lot boxes on a shipping pallet. NIST, the engineering society IEEE, and Georgia Tech are co-sponsoring the competition.

The winning team will run part of their simulated task on a robot at the International Conference on Robotics and Automation 2010 in Anchorage, Alaska, also in May, as part of a demonstration of seamless transition from simulation to real-world systems.

“To participate, the teams need a computer gaming engine that is available for about $10,” says engineer Steve Balakirsky, adding that “from there they can use existing computer code, or create their own, to develop a simulation of a robot picking up boxes of various sizes and weights from a conveyor belt and arranging them on a pallet for shipping.” NIST’s interest, Balakirsky says, is in devising “performance metrics” that can be used to determine what makes a “good” mixed pallet.

The “mixed palletizing” task is a current manufacturing research interest, because plants that produce multiple products often have to ship a variety of items to a single location. The problem is familiar to anyone who has packed a variety of gifts into a larger box for shipping. A sound solution could lead to more efficient delivery of mail, food, and other wholesale items.

Building a mixed pallet is an efficient method of transporting the goods, but programming a robot for this task requires knowledge of robotics, mobility, mapping, and scheduling in a manufacturing environment. Additional consideration in creating the mixed pallet are package density, pallet stability, and how to know which packages need special care due to weight or fragility. The current state-of-the-art use of robots to place products on pallets involves stacking a predetermined number of boxes of the same size and weight. The challenge posed by the VMAC competition will stimulate advances in many areas of robotic algorithms, ranging from the perception of the boxes’ geometry, the grasping and positioning algorithms, and the overall planning procedures for intelligently configuring the mixed pallets based on the available boxes.

This simulation-based competition allows students to engage in real-word research that is ideal for learning robotic architectures, motion planning systems, and multiple robot control, Balakirsky said.

The deadline for entering the competition is Feb. 15 and the competition is May 2–3. More information about the competition, including a simple example of a robot simulation, can be found at www.vma-competition.com.

Contact NIST researchers at robosim@nist.gov with questions.


About The Author

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Founded in 1901, the National Institute of Standards and Technology (NIST) is a nonregulatory federal agency within the U.S. Department of Commerce. Headquartered in Gaithersburg, Maryland, NIST’s mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.