Bluetooth mesh routing method based on improved flooding algorithm

Abstract

The invention discloses a Bluetooth mesh routing method based on an improved flooding algorithm, and the method comprises the steps: obtaining the related information of a neighbor node through a datapacket in a network, determining a forwarding threshold value according to the related information, and limiting the number of forwarding nodes; determining the forwarding probability of forwarding data packet nodes according to the distance between the two nodes and the residual energy of the nodes, determining the forwarding waiting time according to the forwarding probability, and performing time-sharing forwarding; if repeated data packets are received again after any node sends one data packet, it is considered that transmission of the data packets is successful, otherwise, it is considered that the data packets are lost, and the node sends the data packets again until transmission is successful. On the premise of ensuring the transmission reliability, the network energy consumptionis effectively reduced and balanced, so that the method is applicable to a wider application scene, and the value of the Bluetooth mesh is further improved.

Description

technical field [0001] The invention relates to the technical field of bluetooth mesh flooding algorithms, in particular to a bluetooth mesh routing method based on an improved flooding algorithm. 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. 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 Bluetooth low energy technology, in July 2017, the Bluetooth SIG issued the first version of the Bluetooth mesh standard specification to achieve global interoperability of the mesh protocol. Mesh is a new network topology choice for low-power Bluetooth. Compared with the previous point-to-...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned existing technical problems, the purpose of the present invention is to propose a Bluetooth mesh routing method based on an improved flooding algorithm. This invention aims at the problem of high energy consumption of the flooding algorithm, by limiting the participation in forwarding during a data packet transmission process The number of nodes to reduce unnecessary node forwarding, thereby reducing the energy consumption of the entire network; determine the forwarding probability of each node according to the remaining energy of each node, the lower the remaining energy, the smaller the forwarding probability, thus balancing the energy consumption of the entire network nodes Energy consumption; through the node retransmission mechanism, the data transmission reliability of the improved routing protocol is increased

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