RuBee aims to be a rugged alternative to RFID

12.02.2009
The Institute of Electrical and Electronics Engineers has approved a standard for RuBee, a technology that is a bit like RFID but can be used in harsher environments such as underwater or in firearms.

Steel, liquids, animals and people, among other things, can disrupt RFID (radio frequency identification), according to Visible Assets, the small company that developed RuBee. Visible Assets sponsored the development of the new IEEE 1902.1 standard along with Seiko Epson, one of its licensees. It took about three years to complete the specification, according to Visible Assets CEO John Stevens.

RuBee gets around some of the limitations of RFID by using magnetic or "inductive" waves rather than radio waves and using very long wavelengths, Stevens said. In addition, RuBee tags can both send and receive signals, unlike RFID tags, which can only be passively read by scanners, he said. That means RuBee tags can either communicate with a base station or form a peer-to-peer network. RuBee is a packet network protocol like Wi-Fi or ZigBee, according to Stevens.

RFID is used to identify and gather information about objects and people for shipping, asset management, security and other applications. RuBee can serve much the same purpose, but in conditions that hamper RFID, according to Visible Assets. For example, a RuBee tag can be built into a gun and send data through its steel body. That allows a base station at an armory to collect information about how many times the gun was fired while it was in the field, Stevens said. The same base station and tags can be used to keep track of which guns are in the armory at a given time, he said.

Another promising area for RuBee is in health care, where it can be used to track both patients and equipment around a medical facility, Stevens said. One company is using the technology to tag wine bottles. RuBee, which does not rely on line-of-sight communication, has also been used for livestock, parts and tool tracking. One set of base stations and tags can be used to track employees, tools and parts simultaneously, he said.

"RFID has given up on almost every application we're in," Stevens said.