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Address allocation method for LoRaWAN terminal equipment

A distribution method and terminal equipment technology, applied in transmission systems, electrical components, etc., can solve problems such as equipment address conflicts, application service interruptions, communication errors, etc., and achieve the effects of reducing load, avoiding equipment address conflicts, and reducing the probability of conflicts

Active Publication Date: 2020-09-25
成都慧简联信息科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] When the number of terminal nodes is large, the device addresses in the network are likely to conflict, resulting in device identification errors and communication errors; and every time a terminal node re-enters the network, the network server will assign a new device address to the terminal node, resulting in communication errors. Data discontinuity, application service interruption

Method used

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  • Address allocation method for LoRaWAN terminal equipment
  • Address allocation method for LoRaWAN terminal equipment

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Embodiment Construction

[0030] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.

[0031] like figure 1 Shown, a kind of LoRaWAN terminal device address allocation method that the present invention relates to, comprises the following contents:

[0032] O1. Use the database to store the DevEUI and DevAddr of the terminal nodes that have entered the network;

[0033] O2. The network server obtains the DevEUI of the terminal node in the network access request frame, judges whether the terminal node is a device re-entering the network by querying the database, and assigns a DevAddr corresponding to the DevEUI to the device re-entering the network;

[0034] O3. If it is a newly networked device, use the DevEUI of the terminal node as a random seed to randomly generate the DevAddr of the terminal node, query the database to determin...

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Abstract

The invention discloses an address allocation method for LoRaWAN terminal equipment, and aims to solve the problems that when the number of terminal nodes in a LoRaWAN network is large, equipment addresses conflict, and the equipment addresses change when the network is accessed again. The method comprises the steps of storing equipment identifiers and equipment addresses of networked terminal nodes by using a database; enabling the network server to query a database according to the equipment identifier of the terminal node to judge whether the terminal node is the equipment which accesses the network again, and quickly allocate the same equipment address to the equipment which accesses the network again; for newly accessed equipment, calculating and generating the equipment address of the terminal node according to the equipment identifier of the terminal node; querying the database to judge whether the generated equipment addresses conflict or not, and avoiding the equipment addressconflict by using multiple random calculations.

Description

technical field [0001] The invention belongs to the technical field of low-power wide area network communication, and in particular relates to a LoRaWAN terminal device address allocation method. Background technique [0002] LoRa is a LPWAN (Low Power Wide Area Network) technical specification, and its biggest features are long-distance, low power consumption, and low cost. LoRaWAN networks often have a large network scale, and the number of terminal nodes connected to a network can reach tens of thousands. According to the LoRaWAN protocol, the terminal node is identified by the DevAddr (device address) randomly assigned by the network server each time it enters the network. In the header of each uplink and downlink data frame in the network, the DevAddr field needs to be used to distinguish the terminal node sending or receiving data. [0003] The length of the DevAddr field of the terminal node in the LoRaWAN network is 32 bits, and the upper 7 bits are the public NwkI...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
CPCH04L61/50H04L61/5046
Inventor 杨鲲梁萧范新宇刘强
Owner 成都慧简联信息科技有限公司
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