Energy-saving dormancy awakening method based on ZigBee technology

Abstract

The invention relates to an energy-saving dormancy awakening method based on a ZigBee technology. The method comprises the following steps that: S1, a coordinator node establishes a tree cluster type network; and a terminal node and a routing node are added into the network established by a coordinator; S2, the network is graded; time synchronization of a network node and the previous stage is carried out stage by stage; and finally, the whole-network time synchronization with the coordinator is realized; S3, the terminal node and the routing node enter a working period; the terminal node performs acquisition and transmission of data; and the routing node forwards the data to the previous-stage node; S4, after receiving the data uploaded by the terminal node, the coordinator sends dormancy control information to the routing node; and the routing node forwards the dormancy control information to the terminal node; S5, the node receives a dormancy instruction, sets a dormancy time control parameter and enters a dormancy state; and S6, when the dormancy time is up, the node is synchronously awakened to add the network and then enters the working state. By means of the method, the energy consumption of the system can be reduced; the energy utilization rate can be increased; the use time of the system is prolonged; and simultaneously, the maintenance cost of the network can also be reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to the technical field of application of ZigBee technology, and relates to an energy-saving method based on ZigBee technology for waking up from dormancy. Background technique [0002] In some application scenarios of Zigbee technology, the Zigbee system is required to be in a long-term unattended working state, and the nodes in the system are powered by batteries and can meet the requirements of working hours. For example, in some industrial monitoring, the battery-powered nodes require the system to work normally for several years; in bridge and tunnel safety monitoring, it is unrealistic to frequently replace batteries for a large number of Zigbee nodes; and in some wireless meter reading, etc. In the application of the system, real-time monitoring data is not required, but the system can meet the requirements of the use time of more than 2 years. Therefore, there...

AI Technical Summary

Problems solved by technology

Therefore, there are the following problems in these typical Zigbee system application scenarios: (1) The data information collection cycle is long, the node data sending and receiving time is short, and the node is in idle working state most of the time, wasting a lot of energy of the node

(3) Zigbee nodes themselves have limited energy supply, and once the nodes in the Zigbee system have insufficient energy supply, it will affect the normal use of the entire system, and increase the difficulty and cost of system maintenance

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