Bezdrátový sběr dat z elektroměru

Abstract

This thesis presents a system for remote acquisition and processing of electrical energy meter data using LoRa communication. The goal of the system is to achieve measurement accuracy comparable to a direct wired connection while enabling wireless data transmission between the energy meter and a processing unit. The solution focuses on reliable extraction of both monthly cumulative values and quarter-hour interval data covering a full day. The system consists of three main components: energy meter data acquisition via RS485 using the IEC 62056-21 protocol, wireless transmission using LoRa modules, and data processing on a PC using Python scripts. The processed output is structured into a format suitable for billing and further analysis. The design is constrained by the limited responsiveness of the energy meter and cost considerations, which influenced the choice of hardware and communication approach.