1Introduction

1.1What is an identification system?

An IDENT or identification system makes it possible to detect objects direct-ly by means of image recognition or indirectly by means of code/data carri-ers. In the case of fixed code systems, only data can be read. Read/write systems make it possible to store information on the data carrier.The automatic object identification has entered many areas of industrial industrial production. It provides information on products, goods and persons and thus makes it possible to link data and material flow. In rough industrial en-vironments mainly electromagnetic identification systems ( RFID = R adio F requency Id entification) are used as for this purpose robust and chemical-ly resistant data carriers are available. Barcode and Data Matrix code sys-tems, which work according to the optical principle, are fixed code systems. When these systems are used, the label must not become dirty or mechan- ically stressed.

1.2Why is it worth having an identification system?

IDENT systems save time and thus money in the automated variant produc-tion and due to the integration into the logistics concept, they ensure smooth processes. Product tracking and identification is possible in the en-tire production process. Sometimes the code or data carrier even remains with the product as in the case of barcodes and thus represents an uninter-rupted chain to the end customer. New cost-effective designs of code car-riers and comprehensive logistics concepts offer new application options.

Data safety

Date safety can be affected by both external impacts on the code carrier and incorrect data transfer.In the case of barcode and Matrix code systems, the reliability to achieve the right result at the first reading is typically <99%. In the case of an error, a second reading must be carried out. The code label can become mechan-ically, chemically or temporarily unreadable due to dirt.Electromagnetic IDENT systems with a memory in the code/data carrier are electrically and mechanically robust and offer a reading reliability of almost 100% at a data hold time of more than 10 years.
Issue date 2005-08-18 - Catalogue Identification Systems 2005/2006

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