Smart Cameras and Machine Vision Software from Microscan Ensure Correctness and Readability of Data Matrix Codes

Customer: BRUNATA-METRONA -

Requirement: Decoding of multiple small Data Matrix codes from a distance of 25mm after printing process. -

Solution: Vision HAWK Smart Cameras from Microscan with AutoVISION®machine vision software. -

Project: Integrating flexible smart cameras in the production line to decode the Data Matrix codes printed on heat cost allocators. -

Result: Correct and 100% readable codes printed on each product.

During the production process of the TELMETRICstar heat cost allocators, two-dimensional (2D) Data Matrix codes are printed onto the TELMETRICstar units for traceability. BRUNATA- METRONA required a solution to ensure that each code is printed correctly, and that the code is readable after it leaves the production process. The new solution would replace the linear barcode readers that were used in the past, and had to be able to decode two codes simultaneously.

Ingenieurbüro Lawrenow OHG provided BRUNATA- METRONA with an inkjet printing solution using the CodeCenter 2 with two printheads by Inkdustry, which is able to print 24x24mm Data Matrix codes from a distance of 25mm to the product from the printhead

Lawrenow had worked with WI-SYSTEME GmbH, Microscan Elite Partner, already in the past, and when they needed a solution for decoding the Data Matrix codes, WI-SYSTEME recommended the Vision HAWK smart cameras from Microscan.

The Vision HAWK is able to read the high-density codes, as well as read two codes in parallel, in spite of the reflecting surface and poor lighting.

The following process is used to check the codes. BRUNATA-METRONA sends the data for the codes to the printer. The Vision HAWKs read the codes and send the data back to BRUNATA-METRONA''s central system for control. The job was created in AutoVISION machine vision software from Microscan and saved directly on the cameras, so that no PC is needed. The software can be used to modify the job in case new parts are introduced. If the Data Matrix codes are not 100% readable within a certain time, the controller software of BRUNATA-METRONA is notified immediately about the error.

Thanks to the Vision HAWK smart cameras, BRUNATA-METRONA are able to ensure code quality and readability on each product. The Vision HAWK smart cameras were easy to integrate, and provide excellent read performance, even for reading two small codes at one go. Also, no additional lighting was required thanks to the integrated lighting on the Vision HAWK smart cameras.