Low power consumption wireless network realization method based on Lora wireless modules

Abstract

The invention relates to a low power consumption wireless network realization method based on Lora wireless modules. According to the method, a sending source and multiple nodes form the wireless network, each Lora wireless module automatically maintains one timer, the timers start timing when the nodes enter a dormancy mode; when the preset time of the timers arrives, the nodes are waken up and enter a CAD detection mode; the nodes in the CAD mode detect signals, if a signal is detected, the nodes enter a work mode, the next step is carried out, if no signal is detected, the nodes enter the dormancy mode; whether the signal is specifically sent to a node itself can be determined by the node according to the received data, if yes, the node enters a normal data reception mode, data interaction with the sending source is accomplished; otherwise, after the dormancy time of the timers is reset by the node, the nodes enter the dormancy mode. Through the method, the characteristic of low power consumption of the Lora wireless modules under the CAD mode is utilized, the received data is determined and analyzed to switch the work state, and thereby low power consumption is realized.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for realizing a low-power wireless network based on a Lora wireless module. Background technique [0002] The LORA wireless module is a wireless communication module based on spread spectrum modulation technology, which has the characteristics of long transmission distance, low transmission power consumption, and strong anti-interference. The Lora communication technology is developed by Smetech, and the RF chip used in the module is the SX127x chip of Smetech. At present, Lora wireless modules have been widely used in wireless sensor networks, especially in environmental monitoring, industrial control and other fields. Due to the harsh environment in these fields, there are strict requirements on the processing capacity and power consumption of network nodes. [0003] In order to prolong the service life of the nodes, the nodes will sleep and work al...

AI Technical Summary

Problems solved by technology

Although there are many studies on low power consumption of nodes, there is no implementation method of low power wireless network proposed for the channel monitoring characteristics of the Lora wireless module.

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