Energy-saving dormancy awakening method based on ZigBee technology

A technology, sleep time technology, applied in the energy-saving field of sleep wake-up, can solve the problems of short data sending and receiving time of nodes, waste of node energy, limited energy supply of Zigbee nodes, etc., to improve energy utilization rate, reduce energy consumption, and prolong use the effect of time

Inactive Publication Date: 2016-06-01
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Energy-saving dormancy awakening method based on ZigBee technology
  • Energy-saving dormancy awakening method based on ZigBee technology
  • Energy-saving dormancy awakening method based on ZigBee technology

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] figure 1 It shows the periodic working mode of nodes in the ZigBee system. The working mode of the node includes the working state and the dormant state. The working state includes the node time synchronization and the working period. During the working period, the data is collected and forwarded. During the dormant period, the node enters a low power consumption state.

[0023] figure 2 Shown is the ZigBee system architecture diagram, the system adopts the tree cluster network topology, which is convenient for the coordinator to manage the network and classify the network. In the figure, ZC is a coordinator, Ri (i=1, 2, 3) is a router, and ZDi (i=1, 2, 3...) is a terminal node. Among them, the coordinator ZC builds a network, the routing nodes forward data, and the terminal node ZDi collects and uploads data.

[0024] The perio...

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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...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W56/00H04W84/18
CPCH04W52/0209H04W56/0015H04W84/18Y02D30/70
Inventor 张毅程威李开宁何琰
Owner CHONGQING UNIV OF POSTS & TELECOMM
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