title: ÐÐµÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° Ð´Ð»Ñ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Wireless Experimental System for Testing Long-Term Strength of Materials
Creators: name: ÐÐ¾ÑÐ¸, ÐÐ¼Ð¸Ð»ÑÐ¾Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð¿Ð¾Ð»Ð·ÑÑÐµÑÑÑ
Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ
LoRa
RSSI
LOS
NLOS
CSS
creep
long-term strength

description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ â Ð±ÐµÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° ÑÐ²ÑÐ·Ð¸ Ð´Ð°Ð»ÑÐ½ÐµÐ³Ð¾ ÑÐ°Ð´Ð¸ÑÑÐ° Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ (LoRa) Ð´Ð»Ñ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ Ð½Ð° Ð´Ð¾Ð»Ð³Ð¾Ð²ÐµÑÐ½Ð¾ÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÑÐ»Ð¾Ð²Ð¸ÑÑ. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð±ÐµÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾Ð¹ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð´Ð»Ñ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð½Ð° Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LoRa Ð´Ð»Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð´Ð°Ð½Ð½ÑÑ Ñ Ð´Ð°ÑÑÐ¸ÐºÐ¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ð°Ð½Ð°Ð»Ð¸Ð· ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð¸ ÑÑÐ¿ÐµÑÐ½Ð¾ÑÑÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¿Ð°ÐºÐµÑÐ¾Ð². Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐµÐ¼Ðµ "ÐÐµÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð°Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° Ð´Ð»Ñ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð½Ð° Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½ÑÑ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð²". ÐÐµÑÐ¾Ð´Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²ÐºÐ»ÑÑÐ°Ð»Ð¸ Ð½Ð°ÑÑÑÐ¾Ð¹ÐºÑ Ð¸ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑÐ¾Ð² STM32 Ð¸ ESP32, Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ STM32CubeIDE, Arduino Ð¸ Matlab Ð´Ð»Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð´Ð°Ð½Ð½ÑÑ. Ð ÑÐ¾Ð´Ðµ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ¾Ð² Ð¸Ð·Ð¼ÐµÑÑÐ»Ð¸ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ ÑÐ¸Ð»Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð° (RSSI), ÑÑÐ¾Ð²ÐµÐ½Ñ ÑÑÐ¿ÐµÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð°ÐºÐµÑÐ¾Ð² Ð¸ ÑÐ¾Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ðµ ÑÐ¸Ð³Ð½Ð°Ð»/ÑÑÐ¼ (SNR) Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð¿ÑÑÐ¼Ð¾Ð¹ (LOS) Ð¸ Ð½ÐµÐ¿ÑÑÐ¼Ð¾Ð¹ Ð²Ð¸Ð´Ð¸Ð¼Ð¾ÑÑÐ¸ (NLOS). Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸, ÑÑÐ¾ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ Ð¸Ð·Ð¼ÐµÑÑÐµÑ Ð´Ð¾Ð»Ð³Ð¾Ð²ÐµÑÐ½Ð¾ÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð½Ð° Ð±Ð¾Ð»ÑÑÐ¸Ñ ÑÐ°ÑÑÑÐ¾ÑÐ½Ð¸ÑÑ. Ð¡ÑÐµÐ´Ð½Ð¸Ðµ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ RSSI Ð¸ SNR ÑÐºÐ°Ð·ÑÐ²Ð°ÑÑ Ð½Ð° ÑÑÐ°Ð±Ð¸Ð»ÑÐ½ÑÑ Ð¿ÐµÑÐµÐ´Ð°ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ LOS Ð¸ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ðµ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ðµ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ NLOS, Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ Ð½Ð° Ð±Ð¾Ð»ÑÑÐ¸Ñ ÑÐ°ÑÑÑÐ¾ÑÐ½Ð¸ÑÑ Ð¸ Ð¿ÑÐ¸ Ð²ÑÑÐ¾ÐºÐ¸Ñ ÑÐºÐ¾ÑÐ¾ÑÑÑÑ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð´Ð°Ð½Ð½ÑÑ.
description: Research Object: A long-range wireless communication system (LoRa) for testing material durability under various conditions. Objective: The development and investigation of a wireless experimental system for testing the long-term strength of materials using LoRa technology for sensor data transmission, as well as analyzing signal quality and packet transmission success. The thesis is dedicated to the topic "Wireless Experimental System for Testing Long-Term Strength of Materials." The research methods included setting up and testing the experimental setup, using STM32 and ESP32 microcontrollers, and software tools such as STM32CubeIDE, Arduino, and Matlab for automation and data processing. During the experiments, measurements of Received Signal Strength Indicator (RSSI), packet success rate, and Signal-to-Noise Ratio (SNR) were taken under Line of Sight (LOS) and Non-Line of Sight (NLOS). The research results showed that the developed system effectively measures the durability of materials over long distances. The average RSSI and SNR values indicate stable data transmission under LOS conditions and significant signal quality degradation under NLOS conditions, especially at longer distances and higher data transmission rates.