Control circuit used for RFID intelligent reading and writing equipment

Abstract

The invention discloses a control circuit used for RFID intelligent reading and writing equipment. The circuit comprises a serial port communication module, a network conversion circuit module, a MCUmodule, a network controller, a network communication module and a RFID reading and writing module. Low frequency, high frequency and ultrahigh frequency RFID labels can be simultaneously read and written, and a reading and writing range can be adjusted according to an actual demand. Multiple equipment sections are operated in a networking mode, and a state indicating lamp of production and manufacturing equipment can be combined so as to reduce purchase cost, realize work cooperativity, centrality and stability and decrease maintenance cost.

Description

technical field [0001] The invention relates to the field of radio frequency identification, in particular to a control circuit for RFID intelligent reading and writing equipment. Background technique [0002] The technical background related to the present invention will be described below, but these descriptions do not necessarily constitute the prior art of the present invention. [0003] RFID is a wireless communication technology, also known as radio frequency identification, which can identify specific targets and read and write related data through radio signals without establishing mechanical or optical contact between the identification system and specific targets; radio signals are tuned into radio frequency An electromagnetic field that transmits data from a tag attached to an item for automatic identification and tracking of the item. Some tags can get energy from the electromagnetic field emitted by the identifier when they are identified, and do not need a bat...

AI Technical Summary

Problems solved by technology

[0004] In today's era of the Internet and the Internet of Things, it has promoted the upgrading and transformation of related sensing and reading and writing technologies, and the application of RFID tags has been widely used. At the same time, a large number of RFID reading and writing equipment and supporting equipment have emerged. ;At present, the RFID reading and writing equipment on the market only reads and writes a certain type of tag, and cannot read and write low-frequency, high-frequency and ultra-high-frequency RFID tags at the same time. Adjustment, the equipment cannot be connected with the enterprise MES / ERP system for data transmission, and multiple equipment cannot be networked and can only operate alone, and cannot communicate with other equipment, such as electronic scales and sensors; nor can it communicate with the status of manufacturing equipment The combination of indicator lights will easily increase the cost of equipment procurement, and there is no work coordination, and the equipment is scattered and cannot be controlled centrally, which increases the hidden dangers and instability of work, resulting in an increase in maintenance costs.

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