Long-distance wireless internet of things system and node main transmitting and node main receiving methods

Abstract

The invention relates to the technical field of internet of things, and particularly relates to a long-distance wireless internet of things system. The long-distance wireless internet of things system comprises a gateway, and a plurality of nodes which are in a star distribution with the gateway; far-distance information transmission is implemented between the gateway and the nodes; the gateway comprises a long-distance wireless radio-frequency unit and a co-processor unit; the long-distance wireless radio-frequency unit includes an encoding-decoding module, a spread-spectrum modulation-demodulation module and an antenna; the co-processor unit is connected with the long-distance wireless radio-frequency unit; and the co-processor unit is used for receiving sensing information transmitted from the long-distance wireless radio-frequency unit and implementing analysis and processing. The invention further relates to a node main transmitting method based on the long-distance wireless internet of things system and further relates to a node main receiving method based on the long-distance wireless internet of things system. According to the long-distance wireless internet of things system and the node main transmitting and node main receiving methods, by designing the long-distance wireless internet of things system, the far-distance information transmission is implemented between the gateway and the nodes arranged around the gateway, so an arrangement distance between the nodes and the gateway is improved, thereby adapting to an internet of things application which needs a further transmission distance.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a long-distance wireless Internet of Things system and a node main transmitting and node main receiving method. Background technique [0002] The Internet of Things is an important part of the new generation of information technology, and it is also an important development stage in the "informationization" era. Together, it forms a network that connects people and things, and things and things, and realizes informatization, remote management control and intelligence. [0003] At the wireless sensor network level of the current Internet of Things solution, Zigbee and Bluetooth are the mainstream technologies used in the market. These two technologies are widely used, but they have a common shortcoming, that is, the transmission distance is too short; the actual application of Zigbee transmission The distance is only tens of meters, and Bluetooth is only a dozen me...

AI Technical Summary

Problems solved by technology

[0003] At the wireless sensor network level of the current Internet of Things solution, Zigbee and Bluetooth are the mainstream technologies used in the market. These two technologies are widely used, but they have a common shortcoming, that is, the transmission distance is too short; the actual application of Zigbee transmission The distance is only tens of meters, and Bluetooth is only a dozen meters

[0004] This inherent shortcoming prevents both Zigbee and Bluetooth from adapting to IoT applications that require longer transmission distances, such as smart buildings, smart communities, and smart cities.

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