|
|
|
Continual
Wireless Monitoring
Aims to provide and open standard for low-power wireless networking
of monitoring and control devices. ZigBeeTM has the
following unique features:
- Cable replacement
- Low power consumption, simple implementation
for project of any size, from a single household to a skyscraper.
- ZigBeeTM has many different
modes and states depending upon your latency and power requirements,
ZigBee/IEEE 802.15.4 has two major states: active (transmit/receive)
or deep sleep. The application software needs to focus on the
application, not on which power mode is optimum for each aspect
of operation.
- Even mains powered equipment needs to
be conscious of energy. ZigBeeTM devices will be
more ecological than their predecessors saving megawatts at
it full deployment.
- High density of nodes per network ZigBee's
use of the IEEE 802.15.4 PHY and MAC allows networks to handle
any number of devices. This attribute is critical for massive
sensor arrays and control networks.
- Simple protocol, global implementation.
ZigBee's protocol code stack is estimated to be about 1/4th
of Bluetooth's or 802.11's. Simplicity is essential to cost,
interoperability, and maintenance. The IEEE 802.15.4 PHY adopted
by ZigBeeTM has been designed for the 868 MHz band
in Europe, the 915 MHz band in N America, Australia, etc; and
the 2.4 GHz band is now recognized to be a global band accepted
in almost all countries.
- Very secure. Provide access control
to maintain a list of trusted device within the network. Use
symmetric key 128-bit advanced encryption standard
- Frame integrity to protect data from
being modified by parties without cryptographic keys
- Reduce development time. Because of
standards-based, ZigBeeTM technology helps reduce
development time for the OEM, and offer reliability, security,
interoperability and certification.
|
|
|
