: By using the known size of objects and camera focal lengths, the system can estimate the distance of a worker or machine within a small margin of error.
The full research and technical details can be found in the article Dynamic Collision Alert System for Collaboration of Construction Equipment and Workers published in Buildings (MDPI). 999 Part 1(1).mp4
Because real-world collision data is dangerous and expensive to collect, researchers used a approach: : By using the known size of objects
: The system significantly decreased the number of "nuisance" alarms compared to static sensors, as it understands when a worker or another machine is approaching safely for collaboration. : The study noted that moving machine parts
: The study noted that moving machine parts (like an excavator's arm) can sometimes obstruct the view or cause perspective distortion, leading to slight distance errors.