Lora chain-shaped network communication method, Lora gateway and Lora chain-shaped network communication system

Abstract

The invention provides a Lora chain-shaped network communication method, a Lora gateway and a Lora chain-shaped network communication system, the method is applied to a Lora chain-shaped network communication system, and the Lora chain-shaped network communication system comprises at least two Lora nodes distributed in sequence; the method comprises the following steps that: a reference node monitors data uploaded by a corresponding lower-level Lora node in a monitoring time window of the reference node, and uploads the data collected by the reference node to an upper-level Lora node or a Loragateway of the reference node in an uploading time window of the reference node; the reference node is any Lora node; and in any two adjacent Lora nodes, the interception time window of the upper-level of Lora node coincides with the uploading time window of the lower-level of Lora node. According to the invnetion, the power consumption of the network system can be reduced.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a Lora chain network communication method, a Lora gateway and a Lora chain network communication system. Background technique [0002] In the tunnel environment, because the distance between the two ends of the tunnel is very long and the environment is not open, the transmission distance of the Lora (Long Range Radio, long-distance radio) network is limited, and there is generally no 4G signal in the tunnel to connect to the external network, so it is impossible to connect the Lora The gateway is arranged in the middle of the tunnel, and the Lora gateway can only be arranged near the exit of one end of the tunnel. [0003] At present, in the tunnel, the general communication method is to use a Lora gateway plus multiple low-power Lora nodes to build a star network. In the star network, the Lora node farthest from the Lora gateway must also be considered It can...

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Problems solved by technology

[0002] In the tunnel environment, because the distance between the two ends of the tunnel is very long and the environment is not open, the transmission distance of the Lora (Long Range Radio, long-distance radio) network is limited, and there is generally no 4G signal in the tunnel to connect to the external network, so it is impossible to connect the Lora The gateway is arranged in the middle of the tunnel, and the Lora gateway can only be arranged near the exit of one end of the tunnel

[0003] At present, in the tunnel, the general communication method is to use a Lora gateway plus multiple low-power Lora nodes to build a star network. In the star network, the Lora node farthest from the Lora gateway must also be considered Can communicate normally, which leads to the fact that the baud rate of the Lora node must be very small, resulting in a longer time for the Lora node to send data, and higher power consumption of the entire network system

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