RFID (radio frequency identification) chips or tags as they are better known are the size of the smallest coin in your purse, but they can hold huge amounts of information that can be manipulated in methods that can do fantastic things.
For instance, RFID tags are in the majority of office identity tags and in a few passports, enabling the holder to pass through security quickly while keeping the building or the country secure.
They are a modern version of the bar code. Remember before bar codes and bar code readers? When a shop keeper had to type prices into the cash register, correct mistakes and look up prices that they could not remember? People do not have any time for that anymore.
It is OK at the newsagents, but imagine a teenager typing in your two trolleys of weekly shopping at the supermarket every Saturday. You would still be there on Sunday! Superstores have thousands of articles and dozens of special offers - no-one could remember that lot.
No-one can, but bar codes make it straightforward and so do RFID tags. Bar codes work well, but they have to be seen to be read. RFID tags emit their information on a unique frequency which can be read out of line of sight. In other words, an RFID scanner does not have to be able to see the tag to be able to read it.
The scanner can see what is in your trolley without you having to unload it and as you pass by that scanner and pay for your things, they are deducted from stock straight away so that the warehouse manger can see what people are buying and what nobody wants to buy. So, if one brand of cat food is selling better than another, the manager will see that on the computer print-out and buy more of that make, thus keeping more people happy.
This use of RFID in stock control or asset management to give it its more official title, can translate itself into other uses too. An RFID tag can be put under your cat's fur or in its collar so that you can find him if he gets lost. The police and the wardens scan stray animals for a tag as part of their routine these days. Zoologists have been doing this with wild elephants, big cats and other threatened animals for years. Now you can have it done with your pets too.
Company vehicles, as assets of the firm, often have RFID tags and you can have one placed in your car to aid recovery if it is stolen. Baggage handlers at airports or bus terminals can (and do) use them to prevent mislaying luggage.
The US government insists that RFID tags be used on all vehicles carrying ammunition or dangerous substances and have done for almost ten years. The US military is in fact the principal user of these tags in the world. RFID tags are used to track military assets such as weapons, battle tanks, fuel, containers, artillery, you name it.
Some people are anxious about RFID technology. Where is the line between their convenience and their personal information? For example, they do not like getting junk emails from people that have been able to track the purchases they made with their credit cards.
For instance, RFID tags are in the majority of office identity tags and in a few passports, enabling the holder to pass through security quickly while keeping the building or the country secure.
They are a modern version of the bar code. Remember before bar codes and bar code readers? When a shop keeper had to type prices into the cash register, correct mistakes and look up prices that they could not remember? People do not have any time for that anymore.
It is OK at the newsagents, but imagine a teenager typing in your two trolleys of weekly shopping at the supermarket every Saturday. You would still be there on Sunday! Superstores have thousands of articles and dozens of special offers - no-one could remember that lot.
No-one can, but bar codes make it straightforward and so do RFID tags. Bar codes work well, but they have to be seen to be read. RFID tags emit their information on a unique frequency which can be read out of line of sight. In other words, an RFID scanner does not have to be able to see the tag to be able to read it.
The scanner can see what is in your trolley without you having to unload it and as you pass by that scanner and pay for your things, they are deducted from stock straight away so that the warehouse manger can see what people are buying and what nobody wants to buy. So, if one brand of cat food is selling better than another, the manager will see that on the computer print-out and buy more of that make, thus keeping more people happy.
This use of RFID in stock control or asset management to give it its more official title, can translate itself into other uses too. An RFID tag can be put under your cat's fur or in its collar so that you can find him if he gets lost. The police and the wardens scan stray animals for a tag as part of their routine these days. Zoologists have been doing this with wild elephants, big cats and other threatened animals for years. Now you can have it done with your pets too.
Company vehicles, as assets of the firm, often have RFID tags and you can have one placed in your car to aid recovery if it is stolen. Baggage handlers at airports or bus terminals can (and do) use them to prevent mislaying luggage.
The US government insists that RFID tags be used on all vehicles carrying ammunition or dangerous substances and have done for almost ten years. The US military is in fact the principal user of these tags in the world. RFID tags are used to track military assets such as weapons, battle tanks, fuel, containers, artillery, you name it.
Some people are anxious about RFID technology. Where is the line between their convenience and their personal information? For example, they do not like getting junk emails from people that have been able to track the purchases they made with their credit cards.
About the Author:
Owen Jones, the author of this article writes on several topics, but is now involved with the RFID asset tracking. If you would like to know more, please go to our website at Active RFID Management.
