The method of setting up and controlling the operation modes of optical-electronic stations wireless sensor network using LoRa technology

Abstract

A method of managing a wireless sensor network of optical-electronic stations (OES) using LoRa technology is developed. Within the framework of the system of optic-electronic stations, two subnets are functioning: the video stream transmission network and the control network, which is the subject of this work. The main requirements for the control network were the following: the ability to ensure performance in radio-electronic suppression conditions, the provision of high-range radio communication, the ability to operate in conditions of dense urban development, the network energy efficiency, and the high stealth level. Technologies available on the market for building sensor networks were analyzed. LoRa technology was chosen for these purposes considering the established requirements for the network. The current network layout was created based on EBYTE E32-433T20DT LoRa radio modules. The basis of the developed method is two classes of commands for configuring the network of optical-electronic stations. The first class of commands is network management commands, operations to add and remove devices from the general routing table. The second class of commands controls communication modules and microcontrollers, changing their configuration parameters. The OES network’s control algorithms were developed based on these commands. Created commands and algorithms helped significantly facilitate and speed up the operator’s initialization and network configuration process and are already used in the current layout of the optical-electronic station system.