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A multi-network coexistence multi-frequency point wireless communication networking method

A wireless communication, multi-frequency technology, applied in wireless communication, network topology, network planning and other directions, can solve the problems of not fully utilizing time slot time, easily causing broadcast storms, reducing networking efficiency, etc., to reduce packet broadcast. , The effect of shortening networking time and improving networking efficiency

Active Publication Date: 2022-06-03
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This networking scheme has the following defects: 1) When nodes choose their own network, it is random, and it needs to keep trying, which increases the networking time and reduces the networking efficiency; 2) During the networking process, because the nodes are trying to join the network, Transmission of many invalid association request messages and association confirmation messages with rejection information greatly increases network overhead; 3) In a beacon cycle, including beacon slots, CSAM slots
Beacon slots consist of a central beacon slot, proxy beacon slots for all proxy sites, and multiple discovery beacon slots; after a node broadcasts proxy beacons or discovery beacons, it continues until the start of the CSMA slot 4) During the network repair process, routing request messages are broadcast throughout the network, which is likely to cause broadcast storms and greatly increase network overhead

Method used

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  • A multi-network coexistence multi-frequency point wireless communication networking method
  • A multi-network coexistence multi-frequency point wireless communication networking method
  • A multi-network coexistence multi-frequency point wireless communication networking method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Embodiment 1: This embodiment is a preferred implementation of the broadband micro-power wireless intelligent meter reading network networking method of the present invention. see image 3 , the networking method of this embodiment includes:

[0121] 1) After the central control node is powered on, the parameter area verification:

[0122] 2) Obtain the MAC address of the central control node. If the obtained MAC address is inconsistent with the local storage, or the MAC address is the same but not in a networked state, the central control node re-networks;

[0123] 3) Configure a whitelist for the central control node, and count the number of sites in the whitelist;

[0124] 4) Determine the duration of the beacon period according to the size of the network;

[0125] 5) Configure the frequency point for the central control node;

[0126] 6) Configure the network identification number for the central control node;

[0127] 7) The central control node monitors at fr...

Embodiment 2

[0143] This embodiment is a preferred implementation of the method for restoring the network of the central control node of the broadband micro-power wireless intelligent meter reading network of the present invention. see Figure 4 , the central control node network recovery method in this embodiment includes:

[0144] 1) The central control node obtains the MAC address after power-on. If it is the same as the local storage address, and the network is in a successful state before power-off, the network will be restored, and in other cases, the network will be re-established;

[0145] 2) Recreate the site status table, and re-record the network status of each site when the network is restored;

[0146] 3) The central control node is set not to initiate the business process actively within a certain period of time;

[0147] 4) The central control node monitors at frequency 0, and selects the appropriate time to broadcast the notification message through the competition mechan...

Embodiment 3

[0158] Embodiment 3: This embodiment is a preferred implementation of the method for restoring the network site of the broadband micro-power wireless intelligent meter reading network site of the present invention. see Figure 5 , the site network recovery method of this embodiment includes:

[0159] S1: After the site is powered on, the MAC address is obtained. If it is the same as the locally stored address, and the networking is successful before power off, the network will be restored; otherwise, go to S8;

[0160] S2: The station monitors at the original frequency, and if it receives the beacon frame of the original network, go to S3; if it cannot monitor the beacon frame of the original network, monitor the frequency 0 and go to S8; if it receives the association confirmation message , enter the working state;

[0161] S3: If it resolves to its own beacon time slot, go to S4; if it cannot resolve its own beacon time slot but can resolve it to the original network CSMA ...

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Abstract

The invention relates to a multi-network coexistence multi-frequency point wireless communication networking method, which belongs to the field of network planning. The method includes: after the central control node and the site are powered on, when the central control node is in an unnetworked state, adopting a networking method; after the networking is completed, performing network maintenance through proxy changes and real-time routing repair processes; Afterwards, the central control node or site is in the successful state of networking, and the central control node or site network recovery method is adopted. The present invention realizes the networking of multi-network coexistence and multi-frequency points, and shortens the networking time, improves the networking efficiency and network stability and the utilization rate of time slot time, and reduces the network overhead; at the same time, it can quickly restore the network to working status.

Description

technical field [0001] The invention belongs to the technical field of network planning, and relates to a multi-network coexistence multi-frequency wireless communication networking method. Background technique [0002] Existing networking technologies consist of wired and wireless technologies. Wired networking technologies include power line carriers, and wireless networking technologies include Wireless Mesh, Zigbee, Bluetooth, Wi-Fi, and WiMAX. [0003] The network topology model includes point-to-point star topology, upgraded to mesh topology, cluster network topology, and gradually developed to tree network topology. Each of the network topologies mentioned above supports one or more of these topologies. Zigbee networking technology supports star, mesh and tree topologies; Bluetooth technology supports star, cluster and tree topologies; Wi-Fi and WiMAX technologies support star and mesh topologies; power line carrier networking technology Support network or tree topo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/08H04W16/14H04W16/18H04W24/02H04W84/18
CPCH04W12/08H04W16/18H04W16/14H04W24/02H04W84/18Y02D30/70
Inventor 黄俊伟徐方雨张雪琦杨正海
Owner CHONGQING UNIV OF POSTS & TELECOMM
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