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simply put, RFID tags can be printed for about a penny on a package and can be preprogrammed with a UPC code and expiration date. smart fridges (which are slowly coming around) would have on their 15" lcd panel an icon that would read all the rfid tags inside, and show all items in real time their age
and expected expiration or freshness date. you also have the option of adding notes to an item in inventory and when you use up an item, simply brush the item against the "remove" logo on the front of the fridge (like a speedpass) and it will delete the item from the inventory and put it on a preliminary "shopping list" for you to edit later. you could alternatively have the screen ask for confirm "out" or low" when you scan the item so if the milk is low you push it against the door, hit "low" and replace. This is all possible like 5 years ago so it would be relatively cheap and helpful to implement. FYI, if i see this on an LG fridge ill know where they got it lol.
[xandram, Mar 26 2010]
||I believe this idea has been done and re-done...
||I havent seen this level of interactivity posted on here yet.
||This is a really cool idea (no pun indented). The only snag
is that it requires the food to be tagged. What happens if
you cook something and want to put it in the fridge? I
guess you could have some sort of RFID-tag-printer in your
||But I'm wondering if we couldn't bypass one stage and
come up with an even smarter system. Food spoils due to
bacterial or fungal growth (and oxidation, to an extent).
All of these activities produce (amongst other things)
volatile compounds such as amines, thiols etc.
||A "smart" sensor ought to be able to detect these
compounds at relatively low concentrations, and alert the
consumer at the earliest signs of spoilage, without the
need for RFID tags. In the future, it might even be
possible to somehow feed the output from such a sensor
directly into the brain, so that the person would be able
to "see" (that's the closest word I can come up with) the
presence of these volatile compounds emitted from the
||Ultimately, of course, such a sensor might find other
applications, and might be made portable for use outside
the kitchen. If some means were found to power the
sensor conveniently, it could perhaps be worn about the
||//A "smart" sensor// I bet Stilton'd set that thing off pretty
reliably. There would have to be a "whitelist"
||paper engineering *could* print liquid level sensors as well as food temperature sensors cheaply. Also for homecooked meals I would hope that leftovers dont get forgotten for weeks at a time (i know i do it sometimes) but if you wanted to its easy to have a set of ziplock containers with rfid tags, you would scan the item on the front (speedpass type) select a catagory and expiration on the screen and Voila (french for TADA)