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Communication method and system based on LoRa networking

A communication method and networking technology, applied in wireless communication, electrical components, etc., can solve the problems of dynamically adjusting the time slot allocation scheme, reducing data transmission throughput, generating empty time slots, etc., to improve efficiency and stability, Good application prospects and the effect of improving reliability

Active Publication Date: 2020-06-12
XIAN UNIV OF POSTS & TELECOMM +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the improvement of the current wireless transmission performance requirements, the traditional improved fixed time slot allocation algorithm cannot dynamically adjust the time slot allocation scheme according to the change of the current number of nodes, and will generate empty time slots, resulting in waste of time slots and reducing the throughput of data transmission quantity

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  • Communication method and system based on LoRa networking
  • Communication method and system based on LoRa networking
  • Communication method and system based on LoRa networking

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051] figure 1 It is a schematic flowchart of the communication method based on the LoRa networking of the present invention. Such as figure 1 Shown, the communication method of the present invention based on L...

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Abstract

The invention relates to a communication method and system based on LoRa networking. The method comprises the following steps: acquiring a time frame of data transmission based on LoRa networking, wherein the time frame comprises a fixed time slot, a shared time slot and a retransmission time slot; acquiring priorities of the data transmission nodes; allocating a fixed time slot to the core node;allocating a shared time slot to the common node; the common node competes for the shared time slot by adopting a CSMA / CA mechanism; when the data transmission fails, the node which fails in data transmission adopts a retransmission time slot to perform data retransmission; after the data transmission is completed, sending a synchronous data frame to the data transmission node; and each data transmission node performs clock compensation on the local real-time clock according to the synchronous data frame, and synchronizes the data transmission node and the gateway clock. According to the invention, the throughput of data transmission can be improved, and the efficiency of data transmission in LoRa networking is improved.

Description

technical field [0001] The present invention relates to the field of LoRa networking communication, in particular to a communication method and system based on LoRa networking. Background technique [0002] In recent years, the Internet of Things industry has developed rapidly. With the development of wireless communication technology and the popularization of mobile communication equipment, traditional mobile cellular communication technology cannot meet the communication characteristics of IoT node equipment and the requirements of long-distance, low power consumption and large-scale connection. In this case, small The demand for wireless ad hoc networks is increasing. Ad hoc networks are widely used in various fields of life because of their ease of use and low power consumption. Commonly used wireless technologies in the field of Internet of Things applications include LoRa, Zigbee, WIFI, and NB-IOT. However, ZigBee and WIFI are short-range wireless communication tech...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/0446Y02D30/70
Inventor 姚引娣王磊贺军瑾赵小强谢荡远李英李杨莉王琛高强
Owner XIAN UNIV OF POSTS & TELECOMM
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