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Method and system for low-power wireless networking communication

A wireless networking and wireless network technology, applied in wireless communication, network topology, energy consumption reduction and other directions, can solve the problems of unfulfilled real-time requirements, low communication frequency, etc., to ensure real-time communication, simplify network structure, reduce The effect of power consumption

Active Publication Date: 2018-09-28
杭州云翼物联网科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the communication frequency is too low, some applications with high real-time requirements will not be able to realize

Method used

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  • Method and system for low-power wireless networking communication
  • Method and system for low-power wireless networking communication
  • Method and system for low-power wireless networking communication

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing

[0022] The network topology of the networking wireless network of the present invention is as follows: figure 1 shown. The network consists of a coordinator and multiple nodes, N(0) is the coordinator, and N(n,x) is the xth node of the nth level transit node. Except the first-level node N(1,x) directly communicates with the coordinator, the other levels of nodes communicate with the coordinator through the upper-level transit node.

[0023] The networking process of the network is as follows:

[0024] 1) Before joining the network, the node has been monitoring the wireless signal intermittently on the designated channel. The interval is generally one to several seconds, and the monitoring time is generally less than 1mS. When the read RSSI value is greater than a certain threshold, it will continue to monitor for a period of time to receive data. package, otherwise close ...

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Abstract

The invention discloses a method and a system for wireless networking communication. In the system, all node clocks keep synchronous with a coordinator clock, a communication cycle is set, the cycle is divided into a plurality of time slices, the coordinator assigns one monitoring time slice and a monitoring channel for relay nodes of each level, moreover, the coordinator can assign a plurality of time slices for the relay nodes in the first level, thus, power dissipation of the relay nodes in the first level is reduced further, each node only monitors wireless communication in own monitoring time slice and turns off wireless communication at other times; after the coordinator selects a path, a wireless communication data packet is sent within the time slice when the relay nodes of the next level start monitoring, the relay node of the next level receives the data packet and further forwards the data packet in the time slice when the relay nodes of the level after the next level start monitoring, and finally, the data packet arrives at the final node; after processing the data, the final node sends a return data packet within the time slice when the relay nodes of the previous level start monitoring again, the relay nodes of the level before the previous level forwards the uplink data packet within the time slice when the relay nodes of the previous level start monitoring again, finally, the data packet arrives at the coordinator, and thus one time of communication between the coordinator and the nodes is finished.

Description

technical field [0001] The invention relates to a wireless networking communication system, which is especially suitable for wireless communication applications that have low requirements on data volume and communication delay but have strict requirements on power consumption, such as wireless meter reading, low-speed data wireless collection and other fields. Background technique [0002] In some wireless communication networks, the requirements for data volume and communication delay are not high, but the requirements for power consumption of nodes are strict. Generally, it is required to use a lithium battery for power supply and work continuously for several years. Due to cost constraints, its nodes generally use simple wireless half-duplex transceiver chips. For example, in the centralized meter reading system of wireless water meters, gas meters, and heat meters, a coordinator usually manages hundreds or even thousands of nodes, and these nodes are scattered and requir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W84/18
CPCH04W24/08H04W52/0274H04W84/18Y02D30/70
Inventor 李雄
Owner 杭州云翼物联网科技有限公司
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