A basic RFID system consists of three components: reader, antenna (connected to the reader) and a tag, attached to the object to identify.
A basic RFID system consists of three components: reader,
antenna (connected to the reader) and a tag, attached to the object to
identify.
Giving priority to the development and production of readers,
scemtec supplies all-including systems consisting of data base
software, readers, antennas and tags. In addition, system studies are
provided by scemtec in order to support their customers in choosing the
most suitable include-all system.
The reader consists of either micro processing electronics with a
serial interface or a handheld terminal with integrated reader. In
addition, an either internal or external antenna is required. The
writing and reading ranges depend on the shape of the tag. Simple
reader modules (proximity reader) have short ranges of only several
centimeters, whereas those of the long-range readers are up to 2 m
long. The bigger the tag is the longer are the ranges.
Tags come in various types. There are tags of different memory sizes or
they are categorized as either read-only or read-write tag. Therefore,
scemtec developed the so-called “multi-standard” reader, a reader,
especially developed to read and write to any type of tag.
At present RFID systems usually operate at 125 kHz or 13,56 MHz in
Europe. scemtec offers multi-standard readers for both frequency ranges.
Transponder alias Tags ...
... are used for data capturing applications in logistic processes.
A transponder (tag) consists of an encased chip plus antenna.
The transponder (tag) has the ability to store data. In addition and in contrast to the barcode information data, these data can be modified, added, deleted, or completely re-stored. An electromagnetic field of different frequency ranges is used as a means of transferring data from the transponder to a corresponding reading device in a non-line-of-sight way.
Tags come in a variety of shapes:
- Glass tubes and sticks
- Glass tubes and sticks
- ISO charts tags
- Ring shaped tags etc.
Tags may have different functions:
- Read-only
- Read/write
- Password protection
- Encryption
- Anti-collision
Tags have numerous advantages. A summary:
- Tags are used to identify and trace any kind of objects, for example containers
- Identification of the object does not require line of sight. That means, opening of the container is no longer required and it stays intact
- The data transfer from tag to reader is not affected by dirt, ice, water , scratches etc. The tag could even be embedded in plastic
- The data transfer from tag to reader is not affected by dirt, ice, water , scratches etc. The tag could even be embedded in plastic
- A variable data storage allows in-use data modifications
- Process security is given due to the circumstance that password protected tags additionally could be encrypted in order to prevent others than the authorized readers from reading or modifying data
- High data security because of the fact that transponder data are complete, unchanged and saved at any time
- Certain tag types allow a simultaneous reading of several tags (anti-collision mode)
Tags provide a wide range of applications, just to mention a few:
- Product identification
- Process- ad production control
- Process- and production inspection
- Warehouse management
- Merchandise protection
- Merchandise tracking
- Ticketing
- Access control
- Animal identification
- Container identification
- Sports-Timing
- Traffic control
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