CN207731282U - A kind of RFID antenna array reader - Google Patents
A kind of RFID antenna array reader Download PDFInfo
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- CN207731282U CN207731282U CN201721882256.5U CN201721882256U CN207731282U CN 207731282 U CN207731282 U CN 207731282U CN 201721882256 U CN201721882256 U CN 201721882256U CN 207731282 U CN207731282 U CN 207731282U
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Abstract
The utility model discloses a kind of RFID antenna array readers, it includes RFID read-write module, total gating circuit, first gating circuit, second gating circuit, third gating circuit, first antenna array, second aerial array and third antenna array, first gating circuit, second gating circuit is identical with third gating circuit structure, one end of total gating circuit is connect with RFID read-write module, the other end of total gating circuit passes through the one end with the first gating circuit respectively three identical USB, one end connection of second gating circuit is connected with one end of third gating circuit, the other end of first gating circuit is connect with first antenna array, the other end of second gating circuit is connect with the second aerial array, the other end of third gating circuit is connect with third antenna array.The utility model can access 72 aerial coils, easy-to-connect is cost-effective convenient for management, can be by electronic enterprises extensive use simultaneously using gating circuit and aerial array is introduced.
Description
Technical field
The utility model is related to a kind of reader more particularly to a kind of RFID antenna array readers.
Background technology
RFID read-write device is read out single antenna data by single RFID read-write chip at present, with it
The extension of application field, antenna access amount is from individually to the extension of multiple arrays.In this case, if giving each antenna
Individually it is equipped with the data signal acquisition receiving circuit of complete set, it is clear that be unscientific, it is therefore necessary to existing RFID
Read/write circuit makes improvement, is allowed to be adapted to be written and read multiple Array Antenna signals.
Utility model content
The technical problems to be solved in the utility model is in order to overcome the defects of the prior art, now to provide a kind of RFID days
Linear array reader realizes while accessing 72 aerial coils, and easy-to-connect is cost-effective convenient for management, can be by electronics electricity
Device industry extensive use.
The utility model is to solve above-mentioned technical problem by following technical proposals：
The utility model is a kind of RFID antenna array reader, and feature is, the RFID antenna array reader
Including RFID read-write module, total gating circuit, the first gating circuit, the second gating circuit, third gating circuit, first antenna battle array
Row, the second aerial array and third antenna array, first gating circuit, the second gating circuit and third gating circuit structure
Identical, one end of total gating circuit is connect with the RFID read-write module, and the other end of total gating circuit passes through three
A identical USB connect respectively with one end of one end of first gating circuit, the second gating circuit and third gating electricity
The one end on road connects, and the other end of first gating circuit is connect with the first antenna array, second gating circuit
The other end connect with second aerial array, the other end of the third gating circuit and the third antenna array connect
It connects, total gating circuit further includes microcontroller, and total gating circuit chooses described first under the control of the microcontroller
Gating circuit, the second gating circuit or third gating circuit, the first antenna array, the second aerial array and third antenna battle array
Row respectively include No. 24 antennas, and first gating circuit, the second gating circuit and third gating circuit are respectively used to choose each
One of self-corresponding No. 24 antenna carries out signal transmission.
Preferably, total gating circuit includes the first total control module circuit and the identical first gating mould of three line structures
Block circuit, the first total control module circuit include first resistor, the first capacitance and the first inductance, first gating module
Circuit includes the first diode, the second inductance and the second capacitance, and one end of the first resistor connects positive pole, and described first
The other end of resistance is connected in parallel one end of one end and first inductance of first capacitance, first capacitance it is another
One end is grounded, and the first diode described in the RFID read-write module and three tunnels is connected in parallel in the other end of first inductance
Anode, is connected in parallel one end of second inductance and USB described per the cathode of the first diode described in road, and described second
One end of second capacitance and the microcontroller, another termination of second capacitance is connected in parallel in the other end of inductance
Ground；The microcontroller is also connect with three described USB respectively.
Preferably, first gating circuit, the second gating circuit, third gating circuit include respectively the second master control
Modular circuit and the identical second gating module circuit of 24 line structures, the second total control module circuit and described first
The structure of total control module circuit is identical, the structure phase of the second gating module circuit and the first gating module circuit
Together, the second total control module circuit includes second resistance, third capacitance and third inductance, the second gating module circuit
Including the second diode, the 4th inductance and the 4th capacitance, the second resistance, third capacitance and third inductance are respectively with described
One resistance, the first capacitance and the first inductance correspond to it is identical, second diode, the 4th inductance and the 4th capacitance respectively with it is described
First diode, the second inductance and the second capacitance correspond to identical, and one end of the second resistance connects positive pole, and described second
The other end of resistance is connected in parallel one end of one end and the third inductance of the third capacitance, the third capacitance it is another
One end is grounded, and the second diode described in described USB and 24 tunnel is connected in parallel in the other end of the third inductance
Anode, be connected in parallel one end of the 4th inductance and USB described per the cathode of the second diode described in road, described the
The other end of four inductance connects one end of the 4th capacitance, the other end ground connection of the 4th capacitance.
Preferably, filter circuit, the filtered electrical are additionally provided between the cathode and the antenna of second diode
Road includes 3rd resistor, the 5th capacitance, the 6th capacitance, the 7th capacitance and the 8th capacitance, and the cathode of second diode is simultaneously
Connect one end of one end and the 6th capacitance of the 5th capacitance, the other end and the 6th capacitance of the 5th capacitance
The other end connect one end of one end of the 3rd resistor, one end and the 8th capacitance of the 7th capacitance, institute simultaneously
It states the other end, the other end of the 7th capacitance and the other end of the 8th capacitance of 3rd resistor while connecting antenna and same
When be grounded.
Preferably, first gating circuit, the second gating circuit, third gating circuit include shift register and two
The identical lamp of 14 line structures shows circuit, and the aobvious circuit of lamp is respectively set corresponding to antenna described in 24 tunnels described in 24 tunnels,
It includes the 4th resistance and the first LED light that the lamp, which shows circuit, and one end of the 4th resistance is connect with the shift register, institute
The other end for stating the 4th resistance is connect with first LED light, the other end ground connection of first LED light, described in 24 tunnels
The other end of 4th inductance is separately connected the shift register, and the shift register is also connect with described USB.
Preferably, first gating circuit, the second gating circuit, third gating circuit also include three tunnels protection electricity
Road, the protection circuit include the 5th resistance and the second LED light, and one end and the shift register of the 5th resistance connect
It connects, the other end of the 5th resistance is connect with one end of second LED light, the other end ground connection of second LED light.
Preferably, described USB is USB3.0 female seats.
The positive effect of the utility model is：
The utility model can access 72 aerial coils, pass through two simultaneously using gating circuit and aerial array is introduced
Grade gating circuit realizes the aerial array selectivity signal constituted to 72 antennas read-write.Easy-to-connect, convenient for management, section
About cost, can be by electronic enterprises extensive use.
Description of the drawings
Fig. 1 is the overall structure schematic block diagram of the preferred embodiment of the utility model.
Fig. 2 is the electric circuit construction schematic diagram of total gating circuit of the preferred embodiment of the utility model.
Fig. 3 is that the first gating circuit of the preferred embodiment of the utility model and the electric circuit construction of first antenna are illustrated
Figure.
Specific implementation mode
The utility model is further illustrated below by the mode of embodiment, but is not therefore limited in the utility model
Among the embodiment described range.
Fig. 1 is referred to, the utility model is a kind of RFID antenna array reader, including RFID read-write module 1, total gating
Circuit 2, the first gating circuit 3, the second gating circuit 4, third gating circuit 5, first antenna array 6,7 and of the second aerial array
Third antenna array 8.First gating circuit 3, the second gating circuit 4 are identical with 5 structure of third gating circuit, total gating circuit 2
One end connect 1 with RFID read-write module, the other end of total gating circuit 2 by three identical USB include USB19,
USB2 10 and USB3 11 is connect respectively with one end of one end of the first gating circuit 3, the second gating circuit 4 and third gating electricity
The one end on road 5 connects, and the other end of the first gating circuit 3 is connect with first antenna array 6, the other end of the second gating circuit 4
It is connect with the second aerial array 7, the other end of third gating circuit 5 is connect with third antenna array 8, and total gating circuit 2 also wraps
Microcontroller 12 is included, total gating circuit 2 chooses the first gating circuit 3, the second gating circuit 4 or third under the control of microcontroller 12
Gating circuit 5.First antenna array 6, the second aerial array 7 and third antenna array 8 respectively include No. 24 antennas i.e. antenna 1~
24, the first gating circuit 3, the second gating circuit 4 and third gating circuit 5 for choose one of corresponding No. 24 antenna into
Row signal transmission.
Preferably, as shown in Fig. 2, total gating circuit 2 includes that the first total control module circuit 20 and three line structures are identical
First gating module circuit 21,22 and 23, the first total control module circuit 20 include first resistor R0, the first capacitance C0 and first
Inductance L0, the first gating module circuit 21 include the first diode D1, the second inductance L1 and the second capacitance C1, the second gating module
Circuit 22 includes the first diode D1, the second inductance L2 and the second capacitance C2, and third gating module circuit 23 includes the one or two pole
Pipe D3, the second inductance L3 and the second capacitance C3.One end of first resistor C0 connects positive pole, and the other end of first resistor R0 is simultaneously
One end of one end and the first inductance L0 of the first capacitance C0 of connection ground connection, the other end ground connection of the first capacitance C0, the first inductance L0
The other end anode of first diode D1, D2 and D3 described in the RFID read-write module 1 and three tunnels is connected in parallel.Then first
First by taking the first gating module circuit 201 as an example, one end and the USB of the second inductance L1 is connected in parallel in the cathode of the first diode D1
One end and the microcontroller 12 of the second capacitance C1 is connected in parallel in seat USB1 9, the other end of the second inductance L1, the second capacitance C1's
The other end is grounded.The cathode of first diode D2 be connected in parallel the second inductance L2 one end and USB USB2 10, second electricity
One end and the microcontroller 12 of the second capacitance C2, the other end ground connection of the second capacitance C2 is connected in parallel in the other end of sense L2.First
One end of the second inductance L3 and the other end parallel connection of USB USB3 11, the second inductance L3 is connected in parallel in the cathode of diode D3
Ground connects one end and the microcontroller 12 of the second capacitance C3, the other end ground connection of the second capacitance C3.Microcontroller 12 also respectively with three
USB i.e. USB1 seats 9, USB2 seats 10 and USB3 seats 11 connects.Preferably, USB i.e. USB1 seats 9, USB2 seats 10 and USB3
11 be USB3.0 female seats.
Further, the first gating circuit 3, the second gating circuit 4, third gating circuit 5 include respectively the second master control
The identical second gating module circuit 31~324 of 30 and 24 line structure of modular circuit processed, the second total control module circuit 30
It is identical as the structure of the first total control module circuit 20, the second gating module circuit 31~324 and the first gating module circuit 21
~23 structure is identical, as shown in figure 3, the second total control module circuit 30 includes second resistance R0 ', third capacitance C0 ' and the
Three inductance C0 ', the second gating module circuit 3 include the second diode D1 '~24 ', the 4th inductance L1 '~24 ' and the 4th capacitance
C1~24 '.It is now illustrated by taking the second gating module circuit 31 as an example, second resistance R0 ', third capacitance C1 ' and third inductance
L1 ' is corresponding identical as the first resistor R0, the first capacitance C0 and the first inductance L0 respectively, the second diode D1, the 4th inductance
L1 ' and the 4th capacitance C1 ' is corresponding identical as the first diode D1, the second inductance L1 and the second capacitance C1 respectively, second resistance R0 '
One end connect positive pole, one end and the third electricity of third capacitance C0 ' is connected in parallel in the other end of second resistance R0 '
Feel one end of L0 ', the other end ground connection of third capacitance C1 ', USB i.e. USB1 is connected in parallel in the other end of third inductance L1 '
The anode of 9 and 24 tunnel the second diode D1 '~24 ' of seat, the cathode per road the second diode D1 '~24 ' are connected in parallel
One end of 4th inductance L1 ' and USB i.e. USB1 seats 9, the other end of the 4th inductance L1 ' connect the one of the 4th capacitance C1 '
End, the other end ground connection of the 4th capacitance C1.
It is additionally provided with filter circuit 41~424 between the cathode of second diode D1 '~24 ' and corresponding antenna 1~24.
Now illustrated by taking filter circuit 41 as an example, filter circuit 41 include 3rd resistor Rp1, the 5th capacitance C25, the 6th capacitance C26,
The cathode of 7th capacitance C27 and the 8th capacitance C28, the second diode D1 ' connect one end and the 6th electricity of the 5th capacitance C25 simultaneously
Hold one end of C26, the other end of the 5th capacitance C25 and the other end of the 6th capacitance C26 connect the 3rd resistor Rp1's simultaneously
One end, the 7th capacitance C27 one end and the 8th capacitance C28 one end, the other end of 3rd resistor Rp1, the 7th capacitance C27 it is another
The other end of one end and the 8th capacitance C28 connect antenna 1 and are grounded simultaneously simultaneously.
Preferably, the first gating circuit 3, the second gating circuit 4, third gating circuit 5 include 13 and of shift register
Lamp described in aobvious 51~524,24 tunnel of circuit of the identical lamp of 24 line structures shows circuit 51~524 and is respectively set corresponding to two
Ten No. four antennas 1~24.It now shows circuit 51 with lamp to illustrate, it includes the 4th resistance R1 and the first LED light that lamp, which shows circuit 51,
One end of LED1, the 4th resistance R1 are connect with shift register 13, and the other end and the first LED light LED1 of the 4th electricity R1 resistances connect
It connects, the other end ground connection of the first LED light LED1, the other end of the 4th inductance L1 '~24 ' of 24 tunnel is separately connected shift LD
Device 13, shift register 13 are also connect with USB i.e. USB1 seats 9.
Preferably, the first gating circuit 3, the second gating circuit 4, third gating circuit 5 also include three tunnels protection circuit
14, protection circuit 14 include the 5th resistance R25, R26, R27 and second LED light LED25, LED26, LED27, the 5th resistance R25,
One end of R26, R27 are connect with shift register 13, the other end of the 5th resistance R25, R26, R27 and the second LED light respectively
One end connection of one end of LED25, one end of LED26, LED27, the other end point of second LED light LED25, LED26, LED27
It is not grounded.
The utility model can access 72 aerial coils, pass through two simultaneously using gating circuit and aerial array is introduced
Grade gating circuit realizes the aerial array selectivity signal constituted to 72 antennas read-write.Easy-to-connect, convenient for management, section
About cost, can be by electronic enterprises extensive use.
The utility model is described in detail above in association with attached drawing embodiment, those skilled in the art can root
Many variations example is made to the utility model according to above description.Within the spirit and principle of the utility model, appoint made by
What modification, equivalent replacement, improvement etc., should be included within the scope of protection of this utility model.Thus, it is certain in embodiment
Details should not constitute the restriction to the utility model, and the utility model will be using the range that the appended claims define as this reality
With novel protection domain.
Claims (7)
1. a kind of RFID antenna array reader, which is characterized in that the RFID antenna array reader includes RFID read-write mould
Block, total gating circuit, the first gating circuit, the second gating circuit, third gating circuit, first antenna array, the second antenna array
Row and third antenna array, first gating circuit, the second gating circuit are identical with third gating circuit structure, total choosing
One end of circuit passband is connect with the RFID read-write module, and the other end of total gating circuit is USB identical by three
It is connect respectively with one end of one end of first gating circuit, the second gating circuit and one end of third gating circuit connects,
The other end of first gating circuit is connect with the first antenna array, the other end of second gating circuit with it is described
Second aerial array connects, and the other end of the third gating circuit is connect with the third antenna array, total gating electricity
Road further includes microcontroller, and total gating circuit chooses first gating circuit, the second choosing under the control of the microcontroller
Circuit passband or third gating circuit, the first antenna array, the second aerial array and third antenna array respectively include 24 tunnels
Antenna, first gating circuit, the second gating circuit and third gating circuit are respectively used to choose corresponding described 24
One of road antenna carries out signal transmission.
2. RFID antenna array reader according to claim 1, which is characterized in that total gating circuit includes first
Total control module circuit and the identical first gating module circuit of three line structures, the first total control module circuit include first
Resistance, the first capacitance and the first inductance, the first gating module circuit include the first diode, the second inductance and the second electricity
Hold, one end of the first resistor connects positive pole, and first capacitance is connected in parallel in the other end of the first resistor
One end and first inductance one end, the other end ground connection of first capacitance, the other end of first inductance is in parallel
Ground connects the anode of the first diode described in the RFID read-write module and three tunnels, and the cathode of the first diode described in every road is in parallel
Ground connects one end of second inductance and USB described, and second electricity is connected in parallel in the other end of second inductance
One end of appearance and the microcontroller, the other end ground connection of second capacitance；The microcontroller is also USB described with three respectively
Connection.
3. RFID antenna array reader according to claim 2, which is characterized in that first gating circuit, second
Gating circuit, third gating circuit include respectively the second total control module circuit and identical second gating of 24 line structures
Modular circuit, the second total control module circuit is identical as the structure of the first total control module circuit, second choosing
Logical modular circuit is identical as the structure of the first gating module circuit, and the second total control module circuit includes the second electricity
Resistance, third capacitance and third inductance, the second gating module circuit include the second diode, the 4th inductance and the 4th capacitance,
The second resistance, third capacitance and third inductance are corresponding identical as the first resistor, the first capacitance and the first inductance respectively,
Second diode, third inductance and third capacitance are corresponding with first diode, the second inductance and the second capacitance respectively
Identical, one end of the second resistance connects positive pole, and the third electricity is connected in parallel in the other end of the second resistance
One end of one end of appearance and the third inductance, the other end ground connection of the third capacitance, the other end of the third inductance is simultaneously
Join the anode that ground connects the second diode described in described USB and 24 tunnel, per the cathode of the second diode described in road
One end of the 4th inductance and USB described, the other end connection third capacitance of the third inductance is connected in parallel
One end, second capacitance the other end ground connection.
4. RFID antenna array reader according to claim 3, which is characterized in that the cathode of second diode with
Filter circuit is additionally provided between the antenna, the filter circuit includes 3rd resistor, the 5th capacitance, the 6th capacitance, the 7th
Capacitance and the 8th capacitance, the cathode of second diode simultaneously connect one end of the 5th capacitance and the 6th capacitance
One end, the other end of the 5th capacitance and the other end of the 6th capacitance connect one end, the institute of the 3rd resistor simultaneously
State one end of one end and the 8th capacitance of the 7th capacitance, the other end of the 3rd resistor, the 7th capacitance it is another
The other end of end and the 8th capacitance connects antenna and is grounded simultaneously simultaneously.
5. RFID antenna array reader according to claim 3, which is characterized in that first gating circuit, second
Gating circuit, third gating circuit include that shift register and the identical lamp of 24 line structures show circuit, 24 tunnel institutes
The aobvious circuit of lamp to be stated to be respectively set corresponding to antenna described in 24 tunnels, the lamp shows circuit and includes the 4th resistance and the first LED light,
One end of 4th resistance is connect with the shift register, and the other end and first LED light of the 4th resistance connect
It connects, the other end ground connection of first LED light, the other end of the 4th inductance described in 24 tunnels is separately connected the displacement
Register, the shift register are also connect with described USB.
6. RFID antenna array reader according to claim 5, which is characterized in that first gating circuit, second
Gating circuit, third gating circuit also include three tunnels protection circuit, and the protection circuit includes the 5th resistance and the 2nd LED
One end of lamp, the 5th resistance is connect with the shift register, the other end and second LED light of the 5th resistance
One end connection, second LED light the other end ground connection.
7. RFID antenna array reader according to claim 1, which is characterized in that described USB is USB3.0 female seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721882256.5U CN207731282U (en) | 2017-12-28 | 2017-12-28 | A kind of RFID antenna array reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721882256.5U CN207731282U (en) | 2017-12-28 | 2017-12-28 | A kind of RFID antenna array reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207731282U true CN207731282U (en) | 2018-08-14 |
Family
ID=63087316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721882256.5U Active CN207731282U (en) | 2017-12-28 | 2017-12-28 | A kind of RFID antenna array reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207731282U (en) |
-
2017
- 2017-12-28 CN CN201721882256.5U patent/CN207731282U/en active Active
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