原创 Zigbee不同版本的功能比较

2004

2006

2007

PRO

Interference avoidance

Network coordinator selects best available RF channel/Network ID at startup time.

Y

Y

Y

Y

Support for ongoing interference detection under operational conditions and wholesale adoption of a new operating RF channel and/or Network ID.

Y

Y

Automated/distributed address management

Device addresses automatically assigned using a hierarchical, distributed scheme.

Y

Y

Y

Device addresses automatically assigned using a stochastic scheme.

Y

Group addressing

Devices can be assigned to groups, and whole groups can be addressed with a single frame; thereby reducing network traffic for packets destined for groups.

Y

Y

Y

Centralized data collection

Low-overhead data collection by ZigBee Coordinator explicitly supported.

Y

Y

Y

Y

Low-overhead data collection by other devices supported under special circumstances (e.g. with Tree Routing).

Y

Y

Y

Y

Many-to-one routing allows the whole network to discover the aggregator in one pass.

Y

Source routing allows the aggregator to respond to all senders in an economical manner.

Y

Security

128-bit AES encryption with 32-bit Message Integrity Code (MIC) and frame counters to assure message freshness.

Y

Y

Y

Y

Security applied at the NWK layer by default, with key rotation to prevent hacking of the NWK key.

Y

Y

Y

Y

Higher-layer security supported.

Y

Y

Y

Y

<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />Trust Center application, operating on the ZigBee Coordinator, manages trust on behalf of network devices and acts as the central authority on what devices can join the network.

Y

Y

Y

Y

Trust Center can run on any device in the network.

Y

"High Security" mode available, which is selectable by TrustCenter policy, and requires Application Layer Link keys; peer-entity authentication; and peer-to-peer key establishment using Master Keys.

Y

Network scalability

Network scales up to the limits of the addressing algorithm. Typically, networks with tens to hundreds of devices are supported.

Y

Y

Y

An addressing algorithm that relaxes the limits on network size. Networks with hundreds to thousands of devices are supported.

Y

Message size

< 100 bytes. Exact size depends on services employed, such as security.

Y

Y

Large messages, up to the buffer capacity of the sending and receiving devices, are supported using Fragmentation and Reassembly.

Y

Y

Standardized commissioning

Standardized startup procedure and attributes support the use of commissioning tools in a multi-vendor environment.

Y

Y

Y

Robust mesh networking

Fault tolerant routing algorithms respond to changes in the network and in the RF environment.

Y

Y

Y

Y

Every device keeps track of its "neighborhood"; thereby further improving reliability and robustness.

Y

Cluster Library support

The ZigBee Cluster Library, as an adjunct to the stack, standardizes application behavior across profiles and provides an invaluable resource for profile developers.

Y

Y