One of the most popular rf technologies is called acousto magnetic am.
Rfid tag alarm system.
There are two types.
Turn on the monitor.
But in the future viruses could be a serious threat to an rfid system.
A radio frequency identification rfid based access control system allows only authorised people to enter a particular area of an establishment.
When triggered by an electromagnetic interrogation pulse from a nearby rfid reader device the tag transmits digital data usually an identifying inventory number back to the reader.
There s no way of telling any one item from any another.
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This number can be used to inventory goods.
So in a store rf tags set off the alarm when you try to steal something but the alarm mechanism doesn t know what you re stealing only that you re stealing something.
An rfid tag consists of a tiny radio transponder.
Modern passports in many countries including the usa and canada also contain an rfid chip.
Also the rfid tags are smart.
Rfid tags can be used for tracking packages in the mail or goods in a warehouse.
Unlike other security systems the hardware can be discrete and aesthetically pleasing.
A virus programmed on an rfid tag by an unknown source could cripple an rfid system when the tagged item is read at a facility.
Authorised people are provided with unique tags using which they can access that area.
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Of course these tags require eas and rfid systems at the exits to work effectively.
The rfid tag can contain tracking information or just a unique identification code.
Attach the tag to any of your belongings.
This means that each tag is associated to a particular product when an alarm is triggered store security can be instantly notified of the exact item responsible.
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According to some sources 1 rfid tags currently do not have enough memory capacity to store a virus.
Set the range short or long.
A radio receiver and transmitter.
Patented wireless technology rfid alerts you when the tagged item moves beyond your comfort zone effectively preventing loss theft or just forgetting an item.