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

A wireless communication, multi-frequency technology, applied in wireless communication, network planning, network topology, etc., can solve the problems of increasing networking time, increasing network overhead, and not making full use of time slot time.

Active Publication Date: 2020-04-17
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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  • Multi-network coexistence multi-frequency-point wireless communication networking method
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Embodiment 1: This embodiment is a preferred implementation of the broadband micropower 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, check the parameter area:

[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 consistent but in an unnetworked 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 at the same time;

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

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

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

[0127] 7) The central control node monitor...

Embodiment 2

[0143] This embodiment is a preferred implementation of the network recovery method for the central control node of the broadband micropower 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) After the central control node is powered on, it obtains the MAC address. If it is consistent with the local storage address, and the network is successfully established before the power failure, the network will be restored, and the network will be re-established in other cases;

[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 actively initiate the business process within a certain period of time;

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

Embodiment 3

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

[0159] S1: Obtain the MAC address after the site is powered on. If it is consistent with the local storage address, and the network is successfully established before the power failure, 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, it goes to S3; if it cannot hear the beacon frame of the original network, it monitors frequency 0, and then goes to S8; if it receives the association confirmation message , into the working state;

[0161] S3: If the own beacon time slot is resolved, go to S4; if the own beacon time slot is not resolved but the original network CSMA time slot can be r...

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Abstract

The invention relates to a multi-network coexistence multi-frequency-point wireless communication networking method, and belongs to the field of network planning. The method comprises the following steps: after a central control node and a station are powered on, adopting a networking method when the central control node is in a non-networking state; after networking is finished, carrying out thenetwork maintenance through agent change and a real-time routing repair process; after power-on again, enabling the central control node or the station to be in a networking success state, and employing a central control node or station network recovery method. According to the invention, the networking of coexistence of multiple networks and multiple frequency points is realized, the networking time is shortened, the networking efficiency, the network stability and the utilization rate of time slot time are improved, and the network overhead is reduced; and meanwhile, the network can be quickly recovered to a working state.

Description

technical field [0001] The invention belongs to the technical field of network planning, and relates to a multi-network coexistence multi-frequency point wireless communication networking method. Background technique [0002] The existing networking technologies are composed of wired and wireless technologies. The wired networking technologies include power line carrier, etc., and the wireless networking technologies include Wireless Mesh, Zigbee, Bluetooth, Wi-Fi, WiMAX, etc. [0003] The network topology model includes point-to-point star topology, upgraded to mesh topology, cluster network topology, and gradually developed into tree network topology. Of the network topologies mentioned above, each technology 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 technology supports star and mesh topologies; power line carrier networkin...

Claims

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Application Information

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Patent Type & Authority Applications(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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