Data Matrix - the code for all occasions
Everybody knows the problem: The scanner of the supermarket cashier cannot
read the barcode, and the price for the product can not be collected,
because the linear alignment of the barcode must exactly be accounted
for decoding. The Data-Matrix-Code allows much more: it is a two dimensional
code, which encrypts the data horizontal and vertical. It´s position while
reading does not matter and a contrast of less than 20 % is sufficient.
With a minimum of space needed the Data-Matrix-Code can save more than
3000 characters - the solution for many tasks.
As specialist for Data-Matrix-Codes ISW has already developed a range of
exciting projects throughout Europe. For example ISW-machine-vision-systems
were integrated in hospitals were they are needed to identify operation
equipment or vials. Also conductor boards for mobile phones and cylinder
heads of car engines are being decoded with the know-how from Koelln-Reisiek.
Whether domed or reflecting surfaces, or security-codings under lacquer -
ISW is not resigning from difficult tasks.
Create you individual Data-Matrix-Code here.
Application descriptions:Reading Matrix Codes on motor vehicle printed circuit boards (pcb)
Job Definition:
At the manufacture and mounting of pcb`s for the automobile industry , the printed circuit board is before mounting directly marked for traceability with a Data Matrix ECC 200 Code, measurements 4mm x 4 mm with 18 x x18 modules via laser. The lasered codes afterwards need to be verified with regard to readability and correct content. In the product line the mounting is controlled at the reading stations about this code. Moreover is effective the code also to read reliably with changing slab colors, differential covering varnish thicknesses and deflections of the pcb`s in various code qualities. The pcb`s are expedited by the reading station with a velocity of 0.5 m/s.
Implementation:
With the code reader Hawkeye 1500 of the North American manufacturer Microscan the code reading for verification and facility control could be implemented along the product line at 15 reading stations. Additional are places for adjustment for manual identification fitted up with the hand scanner Hawkeye 50. Over the direct connection of a photoelectric barrier the image acquisition of the stationary code reader triggered. For lighting the apparatus has an integrated LED lighting which is, depending on the reading point, listed as a constant or via the photoelectric barrier triggered flash lighting. The test signal is at the verification delivered to the SPS by an opto-decoupled I/O interface. At the following reading stations for controlling of the mounting the reading results are transmitted using an Ethernet interface. On the basis of these information the mounting of the respective pcb `s can be controlled.
Customer`s Benefit:
Because of the suitable reading features of the Hawkeye 15 the quality variants of the Matrix Codes do not depict a handy cap for a reliable reading. Through a tangential deviation of the code reader up to 30° the code reading can also process reliable be realized on mirror finished lacquer coats.
Job Definition:
At the assembly of non-serialized components in aircraft engines of Lufthansa aircrafts a documentary evidence of origin is behooved adverse the aeronautical controlling institution. Therefore the power plant blades need to be identified and documented before the assembly. The power plant blades are therefore marked with a 2D-Data-Matrix-Code by inkjet printer. At this it can be about new, repaired or obsolete used parts. The Data-Matrix-Code contains on repaired parts the job number as well as on new or used parts the certification number.
Implementation:
The industrial Sensor Systems Wichmann GmbH (ISW) realized as certificated solution partner of Siemens a station for automated code identification of power plant blades. The station is based on three Simatic Machine Vision Cameras CM-4000, that can be traversed with a XY-axis system, as well as three hand scanners Hawkeye 15 by ISW. The testing station suits on every magnitude of power plant blades, which are manually engaged in similar orientation in project-specific trays, with which the station is charged. Now the test cycle starts, in which the cameras by the axis-system are moved over the test area and read out the code of every blade, whereat up to 20% damaged codes still are readable. Afterwards the read out data`s are saved in a data base. If a code cannot be read follows an error message. The code then need to be marked anew and the test cycle repeated. In that way is exactly pursuable and backtrackable, which blades are obstructed in which power plant.
Customer`s Benefit:
Via the test solution for 100-%-Controlling the customer can present the required documentary evidence of origin for the installation of the security-relevant components against the aeronautical authority. The utilization of well-tried components enables a competitive realization of the testing station, which flexible for all types of power plant blades can be applied.
