LoRa-based wireless communication system and method

A wireless communication system and wireless communication technology, applied in the field of LoRa-based wireless communication systems, can solve problems such as complex structure, high power consumption, and reduced real-time performance

Inactive Publication Date: 2018-04-13
SHANGHAI HOLYSTAR INFORMATION TECH
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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 br

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[0087] It should be noted that, in the case of no conflict, the following technical solutions and technical features can be combined with each other.

[0088] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0089] Such as figure 1 As shown, a LoRa-based wireless communication system, the above-mentioned wireless communication system includes:

[0090] Controller 1, the above-mentioned controller 1 is used to output collection commands and receive collection data;

[0091] LoRa gateway 2. The above LoRa gateway 2 is used to receive and issue the above-mentioned collection command issued by the above-mentioned controller 1, and to receive the above-mentioned collected data and upload it to the above-mentioned controller 1;

[0092] Multiple LoRa nodes, each of the above LoRa nodes has two working modes, direct and indirect, the above LoRa node in the direct mode is LoRa direct node 3, the above LoRa node in...

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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...

Claims

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Application Information

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IPC IPC(8): H04W4/38H04W40/24H04W84/18
CPCH04W40/24H04W84/18Y02D30/70
Inventor 唐捷吴伟城王泽元肖潇王庆春欧启琛
Owner SHANGHAI HOLYSTAR INFORMATION TECH
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