CN104751204A - UHF RFID electronic tag reading-writing device - Google Patents

Abstract

The invention provides a UHF RFID electronic tag reading-writing device for reading and writing UHF RFID tags in a totally metal-closed cabinet. The UHF RFID electronic tag reading-writing device is characterized by being composed of an UHF RFID antenna, a mechanical movable unit, a mechanical movable control unit, a UHF RFID reading-writing module and a UHF RFID reading-writing main control unit. When the electronic tag is read, the antenna can be moved; due to the movement of the antenna, the radio wave dead zone in the closed metal cabinet is greatly reduced, and the recognition rate of the UHF RFID reading-writing device to the electronic tags is increased.

Description

A kind of UHF RFID read-write equipment

Technical field

The present invention relates to a kind of UHF RFID read-write equipment, particularly close in cabinet in all-metal and carry out UHF RFID read-write equipment.

Background technology

In China, Internet of Things is pushed to following peak by UHF RFID, and wherein internet, mobile Internet are indispensable foundation stones, and what netter let slip no opportunity seeks various technological means, attempt the category being drawn in by Internet of Things and run into it, UHF RFID technique becomes the focus of concern.In the application of reality, we find, in totally-enclosed metal cabinet, when read write line is read and write electronic tag, radiowave due to metal pair uhf band has very strong reflection potential, the radiowave distribution situation of metal safe inside is very complicated, inevitably there is a lot of blind areas, and blind zone position is uncertain.If electronic tag is just in blind area, common read write line just can not identify, greatly reduces discrimination.

Summary of the invention

The present invention completes in view of the above problems, and its object is to provides a kind of UHF RFID read-write equipment, in the process of read-write electronic tag, by movement or the rotation of antenna, change aerial position, thus change the distribution of the radiowave of metal safe inside, with dead zone-eliminating.Finally substantially increase the discrimination of electronic tag.

UHF RFID read-write equipment, is characterized in that:

The antenna of described UHF RFID read-write equipment or described device, in identification electronic tag process, in the mode of making mechanical movement, reduces radiowave blind area.

UHF RFID read-write equipment, is characterized in that:

Described UHF RFID read-write equipment is by UHF RFID antenna, and Mechanical Moving unit, Mechanical Moving control module, UHF RFID read-write module, UHF RFID read-write main control unit forms.

UHF RFID read-write equipment, is characterized in that:

Described UHF RFID read-write equipment meets ISO 18000-6C ∕ EPC G2 consensus standard 860-960M operating frequency range.

UHF RFID read-write equipment, is characterized in that:

In described UHF RFID read-write equipment, the electronic tag of reading is arranged in totally-enclosed metal cabinet.

UHF RFID read-write equipment, is characterized in that:

Described mechanical motion refers in plane or three-dimensional space, does and rotates or Linear-moving or nonlinear moving.

When antenna is in a certain fixed position, often there is certain blind area in the radiowave distribution of totally-enclosed metal safe inside, portions of electronics label cannot be read.By making the continuous change of aerial position, the radiowave distribution of totally-enclosed metal safe inside is constantly changed, thus reaching radiowave, to cover totally-enclosed metal safe completely inner, the object of dead zone-eliminating.

According to the present invention, described UHF RFID read-write equipment provides stable electronic tag read rate, can be applied to the article storage link such as logistics, warehouse.Such as: the storage etc. of the valuables such as storage, safety cabinet of archives in archives.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of a kind of UHF RFID of the present invention read-write equipment.

Symbol description:

1 ... UHF RFID antenna

2 ... Mechanical Moving unit

3 ... UHF RFID read-write module

4 ... Mechanical Moving control module

5 ... UHF RFID read-write main control unit.

Embodiment

Below, with reference to accompanying drawing, propose a kind of embodiments of the present invention, a kind of UHF RFID read-write equipment is described in detail.

Fig. 1 is the schematic diagram of a kind of UHF RFID of the present invention read-write equipment.As can be seen from the figure, UHF RFID read-write equipment comprises UHF RFID antenna 1, Mechanical Moving unit 2, UHF RFID read-write module 3, Mechanical Moving control module 4 and UHF RFID read-write main control unit 5.

In described read-write equipment, UHF RFID antenna 1 is fixed on Mechanical Moving unit 2, UHF RFID antenna 1 is connected with UHF RFID read-write module 3, Mechanical Moving unit 2 is connected with Mechanical Moving control module 4, and Mechanical Moving control module 4 and UHF RFID read-write module 3 are all connected on UHF RFID read-write main control unit 5.

Mechanical Moving unit 2 can adopt stepper motor or electromagnet armature etc., can be changed the move mode of antenna by guide rail.UHF RFID read-write main control unit 5 can use single-chip microcomputer or ARM etc., realizes other equipment and controls.

Described read-write equipment is encapsulated in the shell of read-write equipment, and the shell of described read-write equipment is non-metallic material, as timber, plastics etc.Described read-write equipment is positioned over the inside center position of totally enclosed metal safe, can play the effect of load-bearing, and the article posting electronic tag are placed on the both sides up and down of described read-write equipment.

When carrying out tag reader, the instruction of reading tag by UHF RFID read-write main control unit sends to UHF RFID read-write module, UHF RFID read-write module starts the label reading metal cabinet inside, and result is returned to UHF RFID read-write main control unit.

After reading certain hour, UHF RFID read-write main control unit sends move to Mechanical Moving control module, and Mechanical Moving control module controls the opposite side that mechanical mobile unit moves to metal cabinet, continues to read.

When reading completes, UHF RFID read-write main control unit sends to UHF RFID read-write module and stops read write command, and UHF RFID read-write module stops reading.

Whole reading process is complete.

Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology enlightenment disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.

Claims (5)

1.UHF RFID read-write equipment, is characterized in that:

The antenna of described UHF RFID read-write equipment or described device, in identification electronic tag process, in the mode of making mechanical movement, reduces radiowave blind area.

2. UHF RFID read-write equipment according to claim 1, is characterized in that:

Described UHF RFID read-write equipment is by UHF RFID antenna, and Mechanical Moving unit, Mechanical Moving control module, UHF RFID read-write module, UHF RFID read-write main control unit forms.

3. UHF RFID read-write equipment according to claim 1, is characterized in that:

Described UHF RFID read-write equipment meets ISO 18000-6C ∕ EPC G2 consensus standard 860-960M operating frequency range.

4. UHF RFID read-write equipment according to claim 1, is characterized in that:

In described UHF RFID read-write equipment, the electronic tag of reading is arranged in totally-enclosed metal cabinet.

5. UHF RFID read-write equipment according to claim 1, is characterized in that:

Described mechanical motion refers in plane or three-dimensional space, does and rotates or Linear-moving or nonlinear moving.