The Ladle Hot Spot Detection (LHSD) system uses the latest infrared technology to monitor the temperature of the ladle steel structure. Up to five infrared cameras observe the ladles while the crane is moving past the inspection site. The temperature measurements are completely automatic and require no manual interaction. If the ladles have been provided with a suitable marking, each ladle can be identified and matched with its data. LHSD automatically releases the alarm if a preset temperature threshold is transcended. This reliably prevents dangerous and loss-making ladle breakage.