20.500.12556/RUL-187292 MERJENJE SILE NA PLEZALNIH OPRIMKIH FORCE MEASUREMENTS ON CLIMBING HOLDS V diplomski nalogi je predstavljen razvoj kompaktnega in cenovno ugodnega merilnega sistema za merjenje sile v plezalnem oprimku ter brezžični prenos izmerjenih podatkov na računalnik. Sistem je namenjen spremljanju in analizi moči prstov plezalcev, pri čemer merjenje sile temelji na merilni celici (ang. load cell). Signal merilne celice se z uporabo čipa HX711 pretvori v digitalno obliko, za zajem, obdelavo in brezžični prenos podatkov pa skrbi mikrokrmilnik ESP32. V okviru naloge je bilo načrtovano in izdelano tiskano vezje (PCB), ki je zaradi svojih majhnih dimenzij primerno za vgradnjo v plezalni oprimek. Razvita je bila tudi programska arhitektura, ki omogoča komunikacijo med merilnim sistemom in računalnikom ter sprejem in prikaz izmerjenih podatkov. Del naloge je obsegal umerjanje merilnega sistema in eksperimentalno preverjanje njegovih merilnih lastnosti, pri čemer so bile analizirane natančnost, negotovost in stabilnost meritev. Končni izdelek je delujoč merilni sistem, ki omogoča brezžično zajemanje podatkov o sili in predstavlja osnovo za uporabo meritev pri spremljanju ter analizi plezalne zmogljivosti. In this thesis, the development of a compact and cost-effective measurement system for measuring force in a climbing hold and wirelessly transmitting the measured data to a computer is presented. The system is intended for monitoring and analysing climbers' finger strength, with force measurement based on a load cell. The signal from the load cell is converted into digital form using the HX711 chip, while an ESP32 microcontroller is responsible for data acquisition, processing, and wireless transmission. As part of the thesis, a printed circuit board (PCB) was designed and manufactured, which, due to its small dimensions, is suitable for integration into a climbing hold. A software architecture was also developed to enable communication between the measurement system and the computer, as well as the reception and display of the measured data. The work included calibration of the measurement system and experimental evaluation of its measurement characteristics, with the accuracy, uncertainty, and stability of the measurements being analysed. The final product is a functional measurement system that enables wireless acquisition of force data and provides a basis for using these measurements to monitor and analyse climbing performance. merilna celica BLE plezalni oprimek Wheatstoneov mostič load cell BLE climbing hold Wheatstone bridge true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-10 08:00:03 2026-09-10 08:00:09 2026-09-11 04:28:12 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 62882 Cencic_Tobija_-_MERJENJE_SILE_NA_PLEZALNIH_OPRIMKIH.pdf Cencic_Tobija_-_MERJENJE_SILE_NA_PLEZALNIH_OPRIMKIH.pdf 1 AA0ED016A4D5E0579570549AA4EC2628 e46ceb038e0141fd169a1aef65c1fe34c4d420278f73612f9dda376a37b3413f df11724b-acdc-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=246849 Fakulteta za elektrotehniko 0 0 0