The advantages of Zigbee

(1) Low power consumption: because of the low transmission rate of ZigBee, the transmit power is only 1mW, and the sleep mode is adopted, the power consumption is low, so the ZigBee device is very power-saving. It is estimated that ZigBee equipment by two No. 5 batteries can last up to 6 months to 2 years of time, which is unmatched by other wireless devices.
(2) low cost: the initial cost of the ZigBee module is around $6, and it is expected to drop to $1.5 – $2.5 soon, and the ZigBee agreement is royalty free. Low cost is also a key factor for ZigBee.
(3) time delay is short: the communication delay and the time delay from the sleep state are very short, the typical search equipment delay is 30ms, the sleep activation delay is 15ms, and the time delay of active equipment channel access is 15ms. Therefore, ZigBee technology is suitable for wireless control (such as industrial control occasions) where the delay is very demanding.
(4) network capacity is large: a star shaped Zigbee network can accommodate up to 254
From one device to one host device, one region can contain up to 100 ZigBee networks, and the network is flexible.
(5) reliability: a collision avoidance strategy is adopted, and a dedicated time slot is reserved for the communication service which needs fixed bandwidth, thus avoiding the competition and conflict of sending data. The MAC layer adopts a fully confirmed data transmission mode, and each transmitted packet must wait for the receiver’s acknowledgment information. If there is a problem in the transmission, it can be retransmitted.
(6) security: ZigBee provides a packet integrity check function based on cyclic redundancy check (CRC), supports authentication and authentication, adopts AES-128 encryption algorithm, and each application can flexibly determine its security attributes.