AP TUESDAY, MAY 23, 2006 01:43:35 PM
TULSA: After growing up on a cattle ranch, John Hassell became an electrical engineer specialising in wireless technology. So he feels doubly qualified to offer this warning about the system taking shape to track cattle across America: It wonít work.
To be sure, he doesnít quibble with the logic of the system. It stems from the Bush administrationís plan to give agriculture inspectors the ability to pinpoint the origins of mad cow and other diseases within 48 hours. Livestock facilities and individual animals will get identifying numbers, which owners will use to document the beastsí movements in industry databases.
The system isnít expected to be fully online until 2009, but already itís clear that in the sprawling US beef and dairy industries home to 100 million cattle many producers will automate data gathering with radio-frequency chips attached to cattle ears. And thatís what has Hassell worried. He contends most of the radio-frequency chips making their way onto cattle ears are a terrible fit.
Those chips based on the same radio-frequency identification (RFID) technology being integrated for inventory control by large retailers such as Wal-Mart Stores are known as ìpassiveî tags that broadcast identifying numbers for only a short range, generally just a few feet.
While cattle may be considered docile creatures, they are a lot more mobile and skittish than cases and pallets in Wal-Mart warehouses. Hassell believes only ìactiveî tags, which broadcast identification data for up to 300 feet, will consistently work for the multiple owners and many environments that cattle pass through, from pastures to stockyards, feed lots and slaughterhouses.
Hassell is so convinced that heís launched his own company, ZigBeef, to sell long-range tags. The name is a play on the ëZigBeeí wireless standard employed by his tags. ìI really donít think, on a mass scale that short-range, passive devices are going to be practical,î he said.
ìThe Betamax of the industry is the short-range tags. That makes Hassell sound like many other start-up technologists pooh-poohing a rival standard at the expense of his own. But something makes it a bit unusual: Even beef producers who are using the passive flavour of RFID donít seem thrilled with it either.