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Route optimization method and system for Bluetooth mesh network with mobile nodes

A mobile node and optimization method technology, applied in network topology, short-distance communication service, wireless communication, etc., can solve problems such as limiting the application range of Bluetooth mesh, exacerbating network packet loss and delay, and channel collision, so as to reduce data loss Packet problem, wide application, and the effect of reducing network delay

Active Publication Date: 2022-07-29
苏州永联芯电子有限公司
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AI Technical Summary

Problems solved by technology

However, in a network scenario where nodes are densely deployed, flooding broadcasts will bring more redundant information in the network, causing channel collisions and packet loss problems
And when there are mobile nodes participating in the communication in the mesh network, it will aggravate the problem of packet loss and delay in the network
So this limits the scope of application of Bluetooth mesh

Method used

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  • Route optimization method and system for Bluetooth mesh network with mobile nodes
  • Route optimization method and system for Bluetooth mesh network with mobile nodes
  • Route optimization method and system for Bluetooth mesh network with mobile nodes

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Embodiment

[0058] The preferred embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0059] In the route optimization method of the Bluetooth mesh network with mobile nodes of the present invention, before the node performs the forwarding operation, the forwarding probability value of the node is calculated through a dynamic probability broadcasting algorithm. Nodes perform forwarding operations according to the dynamic forwarding probability value to limit redundant forwarding of nodes in the mesh network and reduce data packet loss and communication delay in the network. The specific improvement plan is as follows:

[0060] (1) Dynamic probability broadcast algorithm: Before the node performs the forwarding operation, it first calculates the initial value of the forwarding probability through the RSSI value in the received data packet; then adjusts the probability value through the neighbor node information recorded by the ...

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Abstract

The invention discloses a route optimization method for a bluetooth mesh network with mobile nodes, comprising: when it is judged that the node needs to be forwarded, obtaining the initial value of the forwarding probability of the node according to the RSSI value in the received data packet; according to the neighbor node of the node information, adjust the initial value of forwarding probability; confirm the adjusted initial value of forwarding probability according to the mobile node information of the node, and obtain the forwarding probability value; generate a random value, and compare the obtained node forwarding probability value with the generated random value , if the random value is greater than or equal to the forwarding probability value, the node performs the forwarding operation, otherwise, the node does not forward. The original flooding algorithm is improved, and a new routing method is proposed. By dynamically adjusting the forwarding probability value of nodes, the redundant forwarding of nodes in the Bluetooth mesh network is limited, thereby reducing network delay and data packet loss caused by mobile nodes.

Description

technical field [0001] The invention belongs to the technical field of mesh network wireless communication, and in particular relates to a route optimization method and system for a Bluetooth mesh network with mobile nodes. Background technique [0002] Bluetooth is a short-range wireless communication technology and one of the basic technologies of the Internet of Things. Bluetooth technology mainly includes classic Bluetooth and low-power Bluetooth technology, and low-power Bluetooth technology is widely used in many fields such as medical care, sports and fitness, security systems, and sensor Internet of Things. [0003] In order to solve the problems of short transmission distance and poor networking capability of low-power Bluetooth technology, in July 2017, the Bluetooth SIG promulgated the first version of the Bluetooth mesh standard specification to achieve global interoperability of the mesh protocol. Mesh is a new network topology of Bluetooth Low Energy. Compared...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04W4/80H04W84/18
CPCH04W40/02H04W4/80H04W84/18
Inventor 乔俊杰金海涛
Owner 苏州永联芯电子有限公司
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