Micropower wireless network ad-hoc networking method based on multi-channel frequency hopping

Abstract

The invention discloses a micropower wireless network ad-hoc networking method based on multi-channel frequency hopping. A coordinator node is used for starting building of a whole sub network, an in-network routing node is controlled to conduct hop-by-hop grouping in a specified period to start broadcast networking of out-network routing nodes in the first hop range, manage complete routes from itself to the routing nodes in the region of the in-network routing node and conduct link maintenance and transparent transmission of application messages. The routing nodes are used for conducting multi-channel passive scanning receiving, automatically select an optimized route by capturing the whole route from a coordinator to the neighborhood nodes in the first hop range and actively report the whole captured route to the coordinator in a communication link active period. The whole networking process is quick, simple, free of manual participation and the like. Meanwhile, the coordinator controls the communication link active period, effectively prevents broadcast storm, prevents the out-network routing nodes from actively starting access applications periodically in full band and can share spectrum resources with other devices in a day parting mode. System expandability and scalability are good.

Description

technical field [0001] The invention belongs to the technical field of wireless network self-organizing network, and in particular relates to a micro-power wireless network self-organizing network method in a centralized meter reading system for low-voltage users in the electric power industry. Background technique [0002] The centralized meter reading system based on low-voltage power line carrier faces challenges in communication reliability due to the large noise pollution and variable load of the domestic low-voltage power grid, as well as the widespread use of AC and DC frequency conversion appliances in the future. With the continuous improvement of data acquisition technology, the existing carrier communication technology has been unable to meet the high-density acquisition frequency. On the other hand, with the continuous development of computer technology, modern signal processing technology and microelectronics technology, the bottleneck of radio frequency technol...

AI Technical Summary

Problems solved by technology

However, the existing micro-power wireless ad-hoc network technology is still immature, and there are still many problems, such as the lack of limiting the active time of the link, resulting in when the key node is abnormal, the free node (not connected to the network node) periodically initiates a network access request around the clock, and other As a result, other equipment in the entire working frequency band will be affected. For the shared spectrum resources, the consequences are unimaginable

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