A passive tag is an RFID tag that has no battery. It operates by
absorbing RF from a reader and reflecting it's encoding ID number(s) back to that reader, thus drawing it's power from the reader. |
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| TAGS | ||
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A passive tag consists of a reel of copper and a microchipnd work as battery-free. The tag comes pre-programmed with a uniqueidentification number. Typically the number is assigned in a database to a specific record, e.g. a file. A passive tag consists of a reel of copper and a microchipnd work as battery-free. The tag comes pre-programmed with a uniqueidentification number. Typically the number is assigned in a database to a specific record, e.g. a file. As a full read-write tag a client's own identification number can be pre-programmed in to the tag, and data can be written to the tag throughout it's life. Tags are often integrated with a self adhesive laminate or labels or application to a wide variety of surfaces. 49mm x 82mm x 0.3 mm ICode 1. Tags can be integrated in to a wide variety of labels and tags for many commercial or industrial applications. |
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| READERS | ||
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A range of 13.56 MHz RFID readers is available for reading of RFID labels Readers are categorised
as follows: |
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A range of antenna options
are available to provide
powerful tag reading in a
wide range of settings. |
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| SOFTWARE | ||
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THAX FINDENTITY RF | |
Findentity RF works on the basis of radio frequency identification (RFID). The radio waves are well-known from radio receivers. Each file or each other item that is to be sought or identified, has to be equipped with a transponder, the battery-free transmitter of the size of a stamp. The life time of a transponder is practically unlimited, if it is not destroyed by outer influences. If you are looking for a special item, e.g. a file, you mark it in the list of files at your computer. Then the readers send out radio waves for a short time, that transmit the identification number of the transponder, that belongs to the searched item. The radio waves are "captured" by the reels of the transponders. If the waves get to the transponder that is searched, this one answers with radio waves of a special frequency. The computer makes out the reader, that receives the signals, and then shows the place, where it is located, by a 3D or 2D plan, voice or text. Additionally, the location can be marked by a laser beam, if the "Findpointer" is installed in the room (preferential at the ceiling). You can search for files at every computer in your network that is equipped with a workstation license. It is possible to install readers at dozens of computers but to search for items at only one computer (or to search for them at more computers if you want to). The other way round, it is not only possible to search for a special transponder, but transponders can also be identified. Using this function the transponders transmit their identification number to the querying reader. The transponder is comparable with an engraved mirror. If light hits the mirror, the light is reflected in a special way, because of the engraving. But transponders can only be identified directly, if they are in the reading range of a reader. The reading range is about 20 to 30 cm (height), that is mostly enough. As the readers have the size of about DIN A4, you have to install quite a number of readers, e.g. at one table, if you want to locate items very exactly. The most cost effective method of deployment is the so-called "Gate Solution". In this case only one reader is installed at the entrances of rooms. The number of readers needed depends on the number of room entrances you have. Instead of installing readers only at entrances they can also be installed at tables, e.g. at one corner of a table. The files or other items have to be carried past the reader, when they are brought into the room or put onto the table. In the case of this application the readers are activated in the continuous mode and register the transponders automatically. The location of the transponders, that belong to special items, is saved in a database. So you can find out, in which room or on which table the item is you are searching for. The transponders can be identified through material, except metal and water. There is no need of a line-of-sight communication between readers and transponders. If transponders are sticked on metal, the efficiency is reduced. Possibly, the efficiency loss can be compensated, if there is a distance between the transponder and the metal of at least 1 cm. |
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| APPLICATION SOFTWARE | ||
A range of off-the-shelf application software is available for generic tracking of items such as: Documents
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