RFID (Radio Frequency Identification Device) read-write system supporting multi-field bus and management method thereof

Abstract

The invention discloses an RFID read-write system supporting a multi-field bus and a management method thereof, aiming at realizing the direct integration of RFID reader-writer equipment and an industrial field bus and simplifying the application of the RFID reader-writer equipment of an industrial field. In the RFID read-write system supporting the multi-field bus, a built-in RFID reader-writer is arranged and can be connected with a plurality of external reader-writers by external reader-writer interfaces, and a plurality of field bus interfaces are arranged and connected with field buses to directly integrate the RFID reader-writer and the field buses. The system is plug-and-play, automatically discovers the connected field buses and has an intelligent diverter switch for channel selection. The system has an independent working mode and a field bus working mode, the requirements of user monitoring and continuous work during power failure are met, and synchronously the real-time solution of the industrial field RFID reader-writer equipment can be achieved.

Description

technical field [0001] The invention relates to the field of fieldbus integration, in particular to an RFID reading and writing system supporting multiple fieldbuses and a management method thereof. Background technique [0002] Fieldbus is a digital serial two-way communication system, which is used for a fully decentralized, fully digital, intelligent, two-way, interconnected, multi-point, and multi-station communication network between field instruments and control systems. This technology can connect all existing field devices and controllers with one cable to form a digital communication network at the equipment and workshop level, and can complete functions such as field status monitoring, control, and remote parameterization. [0003] Radio Frequency Identification (Radio Frequency Identification), commonly known as RFID, is a non-contact automatic identification technology realized by radio frequency technology. It can realize fast reading and writing of electronic ...

AI Technical Summary

Problems solved by technology

RFID devices, especially readers, must be able to serve the automation of production lines more conveniently. They must be able to network with other field instruments and controllers as data acquisition devices, and exchange information directly with field devices in an efficient and real-time manner. The amount of information communication controlled by the bottom layer has changed the shortcomings of the past RFID closed-loop applications, such as low real-time performance and heavy network burden.

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