LoRa-based wireless communication system and method

Abstract

The present invention provides a LoRa-based wireless communication system and belongs to the wireless communication technological field. The system comprises a controller and a LoRa gateway; the LoRagateway and a plurality of LoRa direct nodes form a star network; and each LoRa indirect node is indirectly connected into the LoRa gateway with one LoRa direct node adopted as a relay node. Accordingto the LoRa-based wireless communication system of the present invention, the LoRa wireless technology is adopted, and such communication technology has the characteristics of long communication distance, anti-interference performance, low power consumption and the like, so that the communication technology can adopt the star network architecture, and therefore, the complexity of the system is reduced, and power consumption is reduced; an intelligent node management algorithm can ensure that wireless channels do not conflict with each other; and on the basis of the LoRa wireless technology and the algorithm, a relay function is additionally adopted, and therefore, a transmission distance can be increased manyfold with the real-time performance of data transmission ensured, the wireless diffraction capability of the system can be enhanced, and long transmission distances can be still ensured in complex environments.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, and in particular to a wireless communication system and method based on LoRa. Background technique [0002] The current wireless communication modules mostly use wifi, bluetooth, zigbee, super regeneration, etc., and their ideal transmission distance can reach 2-3km. If you want to reach a longer distance, you need to use the MESH topology, so that data can jump multiple nodes to the destination node. In order to obtain a longer transmission distance, more nodes need to be arranged, which undoubtedly increases the cost, and at the same time increases the system complexity and reduces the system stability. [0003] The communication distance of a single hop of the existing wireless communication technology is usually short, only 2-3km at the farthest. If you want to reach a longer communication distance, you need to use a MESH topology and multi-level relay, such as zigbee wirel...

AI Technical Summary

Problems solved by technology

And its anti-interference ability is weak, and the data cannot be resolved when the signal-to-noise ratio is negative

At the same time, the MESH topology composed of multi-level relays also brings problems such as complex structure and high power consumption. Multi-level relays also directly lead to a multiplied increase in data transmission time and reduced real-time performance.

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