Machine simulation example: Cookies Packaging Robots

This model simulates a set of automated cookie packaging robots. The goal is to find a strategy for picking cookies that will maximize the "Cookie Packaging Success" by allowing the least number of cookies to pass across the entire length of the conveyor without getting picked up and packaged. As the pickers achieve higher utilisation, fewer of them are needed.

Each picker can have its own strategy, and there are several strategies to choose from:

  • Pick cookies farthest to the left
  • Pick cookies farthest to the right
  • Pick closest cookies
  • Pick cookies farthest away
  • Pick cookies requiring the least lateral movement

Simulation model

”Packaging Packaging robots in a 3D simulation model

The “what if” questions

The model provides operational answers to multiple “what if” questions. Some of them are listed below:

  • How many cookies rows on the conveyor are still acceptable? How fast can they run?
  • What picking strategy should be assigned to each and every picker?
  • How many pickers are required to pick all cookies before they finally fall at the end of the conveyor?
  • If there is one picker fewer or out of order, how many cookies will not be picked?
  • Is there another, better picking strategy to test? For example: The sum of all pickers’ movements is minimised. Maybe a picker should fill up a number of trays concurrently. Then it makes sure its movements (cookie -> tray) are as short as possible. What additional conditions are required here?



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