ZigBee is a low-power LAN protocol based on the IEEE802.15.4 standard. According to international standards, ZigBee technology is a short-range, low-power wireless communication technology. This name (also known as the Zigbee Protocol) comes from the bee's splay, because bees rely on flying and "zig" to shake the wings of the "dance" to convey the position of the pollen with the companion. That is to say, the bees rely on such a way to form a communication network in the group. It is characterized by close proximity, low complexity, self-organization, low power consumption, and high data rate. It is mainly suitable for use in the fields of automatic control and remote control and can be embedded in various devices. In short, ZigBee is a cheap, low-power, short-range wireless networking communication technology. Overview 　　 ZigBee is a wireless network protocol for low-speed short-distance transmission. The ZigBee protocol is a physical layer (PHY), a media access control layer (MAC), a transport layer (TL), a network layer (NWK), an application layer (APL), and the like from bottom to top. The physical layer and the media access control layer follow the IEEE 802.15.4 standard. The main features of the ZigBee network are low power consumption, low cost, low speed, support for a large number of nodes, support for multiple network topologies, low complexity, fast, reliable, and secure. The devices in the ZigBee network can be divided into three roles: Coordinator, Router, and EndDevice. At the same time, ZigBee, as a short-range wireless communication technology, has a very strong applicability in the field of Internet of Things because its network can provide users with wireless data transmission functions conveniently. origin ZigBee translates as "Zibe", which is similar to Bluetooth. It is an emerging short-range wireless communication technology for Sensor and Control applications. Proposed by the IEEE 802.15 working group and developed by its TG4 working group. In August 2001, the ZigBee Alliance was established. In 2004, ZigBee V1.0 was born. It is the first version of the Zigbee specification. Due to the hasty of the launch, there are some errors. In 2006, ZigBee 2006 was launched, which is relatively complete. At the end of 2007, ZigBee PRO was launched. In March 2009, Zigbee RF4CE was launched with greater flexibility and remote control capabilities. Since 2009, Zigbee has adopted the IETF's IPv6 6Lowpan standard as the standard for the next generation of Smart Grid Smart Energy (SEP 2.0), which aims to form a globally unified network that is easy to integrate with the Internet for end-to-end network communication. With the construction of smart grids in the US and globally, Zigbee will gradually be replaced by the IPv6/6 Lowpan standard. The underlying technology of ZigBee is based on IEEE 802.15.4, that is, its physical layer and media access control layer directly use the definition of IEEE 802.15.4. Djh Gas Insulated Switchgear,Dead Front Switchgear,Electrical Switchgear,33Kv Switchgear Abb Shandong Shunkai electrical equipment co., LTD. , https://www.chinasdsk.com