steel ladle management device based on an RFID technology

Abstract

The invention provides a steel ladle management device based on an RFID technology, an ultrahigh frequency RFID tag is arranged on the surface of a steel ladle, and a wireless collector communicates with the ultrahigh frequency RFID tag to obtain steel ladle information in the ultrahigh frequency RFID tag; The wireless collector supports remote monitoring, and the received steel ladle informationis used for remote monitoring; The reader antenna and the ultrahigh frequency RFID tag are oppositely arranged, and the reader interacts with the ultrahigh frequency RFID tag through the reader antenna to obtain steel ladle information; And after receiving the steel ladle information, the reader judges whether the steel ladle is at a preset station or not. The steel ladle station monitoring function is achieved, the station and the steel ladle number of a steel ladle are automatically recognized, the intelligence of steel ladle recognition is improved, and the production safety coefficient ofa steel mill is increased. The tag is placed below the reinforcing rib of the steel ladle, the situation that steel slag flows to the tag in the pouring process of the steel ladle and affects wirelesssignals of the tag is avoided, and the reader antenna is fixed to the position right opposite to the tag so as to ensure the strength of the wireless signals.

Description

technical field [0001] The present invention relates to the technical field of ladle management, in particular to a ladle management device based on RFID technology, in particular to a wireless ladle identification device using a special UHF RFID tag. Background technique [0002] Ladle is a container used to transport and dump molten metal in a metallurgical plant. Its main circulation process includes ladle preheating, waiting for copper loading, tapping and loading copper, pouring, pouring molten steel, cooling and repairing, etc. In the past 20 years, workers in most steelmaking plants manually assign ladle numbers, record the real-time process of each ladle, and usually need to clean and repair according to the cycle of each ladle. These highly repetitive manual entries are prone to errors that can result in additional high costs for plant operations and affect the schedule of other ladles. Some enterprises rely on image recognition to manage steel ladles. However, ima...

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Problems solved by technology

However, there are usually difficulties in the implementation of ladle identification using RFID technology in metallurgical plants. For example, when the ladle is working, the temperature inside the ladle is as high as 1700 degrees, and the surface temperature is also more than 350 degrees. The maximum temperature resistance of common RFID surface acoustic wave devices is only At about 100 degrees, ordinary RFID tags cannot work at all; there are many metals in the working environment on site, which is easy to cause multi-faceted reflections and reduce the reading distance of tags; the maximum recognition distance of tags at different stations is different, and it is necessary to avoid interference between two adjacent tags

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