1-D codes still have a large use in industry for retail uses, however, and for logistics tracking. What are the benefits and the challenges of 1-D and 2-D based codes?Ģ-D, particularly data matrix, has significant advantages over 1-D codes, including data redundancy (being able to read the code, even when part is missing), a smaller footprint, and the ability to uniquely mark individual parts with many characters, which is not really possible with 1-D.
For long term quality assurance, full traceability allows manufactures to understand where defective components were used, ensuring a rapid response for the end customer when there is a quality issue. How does barcode technology relate or influence the quality sector of manufacturing?Īs mentioned above, the 2-d codes are useful for quality control in process, checking the codes to ensure only the correct part, or label is used prior to moving to the next manufacturing step. DPM can be challenging to illuminate properly, so an intelligent tuning function can remove the guesswork to maximize read rates. These same technologies, DSP and CMOS have also allowed readers to be low cost enough to replace the single line laser scanners, still with high performance.įor Direct part mark, variable focus technology like liquid lens, and lower cost, high intensity LEDs have made it easier to rapidly deploy readers that can auto focus and auto tune lights.
The advances in DSP technology and speed of CMOS imagers have enabled image based barcode readers to be able to perform the high speed 1-D barcode reading for logistics applications, which previously required lasers, or expensive line scan technology.