High-temperature Container ID: Image vs. RFID vs. EMMA

Ladle ID is the core hardware of intelligent steelmaking logistics - an error corrupts the whole platform. Ladle surfaces are locally above 350℃ with heavy electromagnetic interference, demanding strict ID technologies.

Image recognition: unlimited temperature but disturbed by glare and molten metal coverage, 70-95% accuracy typically, needs periodic re-painting and lens cleaning. Conventional IC-RFID: needs insulation; chips fail at high temperature with serious cross-reading, lifespan 6 months to 1 year. EMMA-ID: piezoelectric SAW chip works at 350℃, radar reads IDs via pulses - up to 100% on rail-served ladles, maintenance-free.