Zigbee

Zigbee IEEE 802.15.4 agreement of pronoun. According to this Agreement provided that the technology is a short-range, low-power wireless communication technology. The name comes from the character bee dance, because the bees ( bee ) on the fly and" buzzing" ( Zig ) trembling wings" dance" and Companions to transfer pollen location information, that is to say the bees rely on such form groups in communication network. Its characteristic is short distance, low complexity, self-organized, low power, low data rate, low cost. Mainly suitable for the field of automatic control and remote control, can be embedded in a variety of equipment. In short, the ZigBee is a cheap, low power wireless network communication technology.

The origin of ZigBee

It is similar to ZigBee, and bluetooth. Is a new kind of short distance wireless technology.

For sensing control application ( sensor and control ).

This idea in the group of IEEE 802.15 in put forward, then set up the TG4 working group, establish regulations and IEEE 802.15.4.

In 2002, ZigBee Alliance was founded.

In 2004, ZigBee V1.0 was born. It is the first ZigBee specification. But because of the introduction of rush, there are some mistakes.

In 2006, the launch of ZigBee 2006, a relatively perfect.

By the end of 2007, ZigBee PRO launched

In Bluetooth technology used in the process of Bluetooth technology, people found that despite the many advantages, but there are still many defects. On the industry, home automation and industrial remote measurement and control field, Bluetooth technology is too complex, large power consumption, distance, network scale is too small, and industrial automation, wireless data communications needs of increasingly strong, and, for the industrial field, the wireless data transmission must be highly reliable, and can resist the industrial scene of a variety of electromagnetic interference. Therefore, after long efforts, ZigBee agreement in 2003 officially available. In addition, Zigbee used before it examined for home network communication protocol Home RF Lite.

Long-term since, low price, low transmission rate, short distance, low power wireless communication market has been the existence of. Since Bluetooth appeared later, made industrial control, automatic control, toy manufacturers and industry caper unceasingly,

But the Bluetooth's price has been high, seriously affecting the manufacturers use intention. Nowadays, the industry have participated in the IEEE802.15.4 group, responsible for the development of ZigBee physical layer and medium access layer.

The IEEE802.15.4 specification is an economic, efficient, low data rate ( < 250kbps ), working in the 2.4GHz and 868 / 928MHz wireless technology, used in personal area network and a peer-to-peer network. It is a ZigBee application layer and network layer protocol based. ZigBee is a new kind of short distance, low complexity, low power consumption, low data rate, low cost wireless network technology, it is a kind of Wireless Markup technology and Bluetooth technology between the proposal. Mainly used in the near distance wireless connection. It is based on the 802.15.4 standard, in thousands of small sensors intercuordination realization of communication. These sensors only need very little energy, to relay way through the radio wave data from one network node to another node, so their communication efficiency is very high.