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Lead Contents

RFID Systems

RFID Systems enable non-contact reading and writing of data. Also called electronic tags, IC tags, ubiquitous ID systems, and RF tags, RFID Systems enable non-contact reading and writing of data.

Overview Features
Principles Classifications
Engineering Data Further Information

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Primary Contents

Major Features of an RFID System

Able to Read and Write data without direct contact.

RF tags can store data as much as max. 8000 bytes enough for the production control. All of the data required for each process (process history, inspection history etc) can be freely stored, without the need for direct contact. This makes it possible to develop paperless sites, where the causes of production stop are reduced.

By "combining an item with its information", a highly pliable and reliable system configuration becomes possible.

With the technology to decentralize information, the load on higher systems is reduced. This means that system development costs can also be reduced, systems can be implemented significantly faster, and the system is much more flexible when making changes. Also, "the unification of items with their information" for each process and site can make it possible to manage production/processes and product quality without errors. And, with the latest information contained in RF tags, work can continue offline in emergencies, significantly shortening the time required to restore processes.

With the adoption of space transmission technology and protocols, highly reliable communication is made possible.

As opposed to barcodes which simply look for 1 or 0, advanced space transmission technologies and specialized protocols are employed for transmission through the air. 16 bits CRC is added to the information as it is transmitted. More than 18 bits Burst errors can be detected at a ratio of 00.9985%, providing a very high reliability in the transfer. Also, since there are no mechanical devices involved such as with the Raster Scan method for barcodes, the likelihood of malfunction and other problems is greatly reduced.

Reading and writing is possible without line of sight, using electric and electromagnetic wave transmission.

Unlike barcodes, since communication occurs by means of electric and electromagnetic waves, erroneous readings due to dirt, moisture, oil etc are cancelled out. Even if there is dust, moisture etc., or anything other than metal between the antenna and the RF tag,. it will not affect transmission. And since the communication range is wide, there is no need for extreme positioning which can greatly reduce the time and cost of design.