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).
: Recognizes if a worker is facing away or kneeling, which increases risk. 999 Part 1(1).mp4
: 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
: 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. 999 Part 1(1).mp4
Because real-world collision data is dangerous and expensive to collect, researchers used a approach:
: Distinguishes between workers, excavators, and forklifts.