LoRaWAN-based Internet-of-Things communication extension method and LoRaWAN Internet of Things

Abstract

The invention provides a LoRaWAN-based Internet-of-Things communication extension method and a LoRaWAN Internet of Things, and the method comprises the steps: building a LoRaWAN network which comprises a LoRaWAN gateway, a collector and a server; enabling the to-be-accessed terminal node to adopt a LoRaWAN terminal mode to send a registration request to the LoRaWAN gateway, and when feedback information of the LoRaWAN gateway is not received within a first preset feedback time, switching the to-be-accessed terminal node to the LoRa terminal mode to send the registration request to the collectors arranged in the collector channels, and receive the feedback information of the collectors, establishing communication connection with the collector corresponding to the signal intensity value in the strongest feedback information so as to construct a collector private network; and achieving relay forwarding of an uplink frame and a downlink frame of a to-be-accessed terminal node by adopting a collector for establishing communication connection, storing and updating registration information of the to-be-accessed terminal node, and sending the registration information to a server. The beneficial effects of the invention are that the LoRaWAN network and the collector private network do not interfere with each other, thereby achieving the blind area coverage of the LoRaWAN.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a LoRaWAN-based communication extension method for the Internet of Things and the LoRaWAN Internet of Things. Background technique [0002] In recent years, with the promotion of the application of LoRaWAN technology, it has been widely used in the field of Internet of Things. LoRaWAN is a wireless IoT communication solution using LoRa technology, which defines the protocol and communication architecture of the network. But LoRaWAN is a star network, which limits its network coverage. The LoRaWAN network architecture is a star network. In the LoRaWAN network, when the gateway uses the Sx1301 chip, it supports 8 LoRa channels with a fixed bandwidth of 125kHz, one channel supporting 125 / 250 / 500kHz bandwidth for communication with the gateway, and one high-speed FSK channel. LoRaWAN implements ADR technology (Adaptive Data Rate, rate adaptation), the closer to the ...

AI Technical Summary

Problems solved by technology

[0004] First, in practical applications, the gateway is installed on the pole, and the installation height of the gateway is limited, and the signal coverage of the gateway is limited

The terminal equipment at a long distance will not be able to establish an effective connection with the gateway;

[0005] Second, the installation height of terminal equipment in practical applications is low, and even some terminal equipment is installed in the basement or embedded in the wall

This causes the terminal equipment to receive and transmit signals very weakly, forming an island and unable to establish an effective connection with the gateway

[0006] Third, too many gateways deployed in practical applications will increase the cost

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