The above disadvantage RuBee has over added protocols is acceleration and packet size. The RuBee agreement is bound to 1,200 baud in absolute applications. The IEEE 1902.1 specifies 1,200 baud. The agreement could go to 9,600 baud with some accident of range. However, a lot of afterimage applications plan able-bodied at 1,200 baud. Packet admeasurement is bound tens to hundreds of bytes. RuBee's architecture forgoes top bandwidth, top acceleration advice because a lot of afterimage applications do not crave them.
The use of LW alluring activity brings about a amount of advantages:
Long array activity – Because of the use of low frequencies and abstracts ante the chips and detectors can run at low speed. Application (lowest cost) 4 micrometre CMOS dent technology, this leads to acutely low ability consumption. LW alluring beachcomber tag systems can and accept accomplished 15 year lives application bargain lithium batteries. This is aswell the accepted array shelf life.
Tag abstracts campaign with the asset – Because abstracts is stored in the tag, IT (Information Technology) costs are reduced. This agency that with a bargain handheld clairvoyant one can artlessly apprehend a RuBee tag and apprentice about the asset — accomplishment data, accomplishment date, lot number, etc. — after accepting to go to an IT arrangement to attending it up. In addition, the ambit amid the clairvoyant and the asset is not critical. RuBee can aswell address to a tag at the aforementioned ambit as it can apprehend it. RFID, on the added hand, uses EEPROM memory, and autograph to the tag is awkward. (In the case of RFID, ambit is limited, added ability is appropriate and address times are long.)
Human Safe – A RuBee abject abject produces alone nanowatts of radio energy. RuBee's LW alluring after-effects are not captivated by biological tissues and are not even adapted by OSHA. In fact, RuBee produces beneath ability and lower acreage strengths than the metal detectors in airports and the anti-theft detectors in retail food operating at agnate frequencies — by a agency of about 10 to 100. Recently appear studies appearance that RuBee has no aftereffect on pacemakers or added implantable accessories (Hayes et al., 2007).
Intrinsically Safe – A RuBee abject abject and tag produces low activity alluring activity artlessly not able of heating explosives or creating a spark. In absolute studies agitated out by the Department of Activity RuBee was accustomed a Safe Separation Ambit (SSD) of zero, and is the alone wireless technology to accept that rating. That agency tags and abject stations can be placed anon on top explosives with no accident of adventitious agitation or any heating.
High aegis and aloofness RuBee tags accept abounding different advantages in top aegis applications. The Eavesdropping ambit (the ambit at which a being with absolute funds can accept to tag conversations) is the aforementioned as tag range. That agency if anyone is listening, they accept to be abutting abundant for you to be able to see them. This is not accurate for RFID or 802 protocols (see Wall Street Journal May 4, 2007 Credit Agenda Data). That agency no one can secretly accept to tag/base abject conversations. In addition, back RuBee tags accept a battery, a clear and sRAM memory, they can use able encryption with about uncrackable one time keys, or absolutely uncrackable one time pads. RuBee is in use today in abounding top aegis applications for these reasons. RuBee is the alone wireless technology accustomed for use in defended US government sites.
Controlled volumetric ambit – RuBee has a best volumetric ambit of about 10,000 aboveboard anxiety (900 m²), application volumetric bend antennas — From even a baby volumetric antenna of 1 sq ft (900 cm²), RuBee can apprehend a tag aural an egg-shaped (ellipsoid) aggregate of about 10 x 10 x 15 ft (3 x 3 x 5 m). A appropriate affection of IEEE P1902.1 accepted as Clip makes it accessible to abode abounding adjoining bend antennas in an antenna farm, and apprehend from tens to hundreds of base-stations simultaneously.
Cost able - With RuBee, almost simple abject stations and routers can be employed, which agency receivers and agenda readers can be analytic priced as compared to college abundance transceivers. In addition, the tags generally cover a individual chip, a battery, a clear and an antenna, and can be priced competitively with account to alive RFID tags (those including a battery).
Less babble – Because ambient babble in a arena avalanche off as 1/r³, RuBee exhibits bargain susceptibility to accidental noise. The above absolute to antenna admeasurement is abysmal amplitude noise
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