Task setting:

Fresh baked goods must meet high quality standards. Speed is essential to ensure that the rolls are available to the retailer in large quantities, high quality and defined quantities within a short period of time.


Together with the University of Applied Sciences West Coast (FHW), ISW has developed a real-time image processing system that meets all requirements. A line camera mounted above the conveyor belt records and sorts the rolls using image processing algorithms so that they can be grouped and counted for subsequent packaging.
Illumination is crucial here, because only a high-contrast image can ensure that the sorting process functions flawlessly. More than 100,000 rolls pass through the optical and thus contact-free quality control every hour.

In addition to the criteria of speed and detection reliability, compliance with hygienic standards, variability in terms of product variety and, of course, costs also play a role.

A comprehensive task which, however, offers a promising solution through modern image processing. ISW offers the complete solution in cooperation with a machine manufacturer.

Special features

  • All tests in the production flow, i.e. no stopping of the products necessary
  • High resolution line scan camera to check details


  • Product count
  • Geometry check

Image Processing Hardware

  • 1 x line scan camera (2048 pixels, Gigabit Ethernet)
  • 2 x homogeneous LED Light fields
  • High Accuracy Lens

Industrial Touch Terminal

15″ TFT Industrial Terminal

  • stainless steel front
  • resistive Touchscreen
  • 15″ Display resolution 1024 x 768 pixel
  • CPU Intel Core 2 Duo 2x 2.2GHz
  • 2GB DDR2 RAM

mass storage

  • 2GB CF card for the operating system
  • 160GB HDD 2,5″ 24/7 SATA
  • 8GB CF-Card in removable frame

Power supply

  • operating voltage 24VDC

environment/temperature range:

  • Protection class IP65 front
  • Temperature range 5°C to 50°C


  • Interfaces PC + I/0 box
  • 52 digital, I/Os, 24V
  • 2x Ethernet (TCP / IP)
  • 1x RS422

supply voltage 230 VAC / 50Hz

Signal voltage 24 VDC

Air pressure 6 bar

Image Processing Software

  • Internal development
  • Customized surface
  • Access levels locked by password protection