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

A field bus, reading and writing system technology, applied in the direction of bus network, cooperating devices, instruments, etc., can solve the problems of heavy network burden, low real-time performance, reducing the amount of information communication, etc. Intermittent work, the effect of reducing the amount of communication data

CN101763080BActive Publication Date: 2012-01-04INST OF AUTOMATION CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2012-01-04

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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.
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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 ...

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0039] Such as figure 1 as shown, figure 1 It is a schematic diagram of the RFID reading and writing system supporting multiple field buses provided by the present invention, and the connection relationship of each part is specifically identified in the figure. The system has a four-layer structure, field bus interface 1, intelligent transfer switch 2, embedded control layer 3, and read-write layer 4. Wherein the embedded control layer 3 includes a data storage unit 31, a field bus management unit 32, a reader-writer management unit 34, a data processing unit 33 and a human-computer interaction unit 35, and the read-write layer 4 includes a built-in reader-writer 41, external read-write Interface 42. The field bus inte...