CN208873147U - Multiple antennas RFID circuit and multiple antennas RFID reader - Google Patents
Multiple antennas RFID circuit and multiple antennas RFID reader Download PDFInfo
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- CN208873147U CN208873147U CN201820599830.4U CN201820599830U CN208873147U CN 208873147 U CN208873147 U CN 208873147U CN 201820599830 U CN201820599830 U CN 201820599830U CN 208873147 U CN208873147 U CN 208873147U
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- electronic switch
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- multiple antennas
- rfid
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Abstract
The utility model relates to a kind of multiple antennas RFID circuit and multiple antennas RFID readers, control module is connect by the input terminal of the first electronic switch of control and the second electronic switch with each output end, realize that the connection different between the output end of the second electronic switch of the output end of the first electronic switch is combined, the Anneta module quantity according to connecting path carry under various combination is different.Based on this, the carry mutiple antennas module in same RFID read-write module is realized, and can select the quantity of control carry Anneta module by access, to reduce the volume and cost of multiple antennas RFID circuit.
Description
Technical field
The utility model relates to radio RF recognition technology fields, more particularly to a kind of multiple antennas RFID circuit and more days
Line RFID reader.
Background technique
Radio RF recognition technology is a kind of wireless communication technique, and specific objective can be identified by radio signals and is read
Related data is write, without establishing mechanical or optical contact between identifying system and specific objective.RFID technique can recognize height
Fast moving object and the data that can identify multiple labels simultaneously, and RFID antenna is the transmitting for being used for transmission label data, receives
Device.
In traditional RFID (Radio Frequency Identification) circuit, a RFID chip is general only
Connect one to two antenna.In the application for including mutiple antennas, need to cause more days using multiple RFID chips
Line RFID circuit volume is larger and higher cost.
Utility model content
Based on this, it is necessary to which larger for multiple antennas RFID circuit volume and higher cost defect provides more days a kind of
Line RFID circuit and multiple antennas RFID reader.
Technical solution provided by the utility model embodiment is as follows:
A kind of multiple antennas RFID circuit, including the first electronic switch, the second electronic switch, control module,
RFID read-write module and mutiple antennas module；
First electronic switch and the second electronic switch include input terminal and multiple output ends；Wherein, first
The Card read/write end of the input terminal connection RFID read-write module of electronic switch, the input termination of the second electronic switch
Ground；
Any output end of first electronic switch can form access with any output end of the second electronic switch,
And one or more Anneta modules are connected on access；
Control module connects the control terminal of the first electronic switch, and the input for controlling the first electronic switch
End is connect with each output end；Control module is also connected with the control terminal of the second electronic switch, and cuts for controlling the second electronics
The input terminal for changing switch is connect with each output end.
In one embodiment, Anneta module is arranged with multistage matrix form；Wherein, multistage order of matrix number and the first electronics
The fan-out of switching switch or the second electronic switch is equal；
Each Anneta module is separately connected the adjacent antenna module with it with a line and same row；
The first row, last line, first row or last Anneta module arranged and the switching of the first electronics of multistage matrix are opened
The output end of pass connects one to one；
The first row, last line, first row or last Anneta module arranged and the switching of the second electronics of multistage matrix are opened
The output end of pass connects one to one；Wherein, the matrix where the Anneta module of the output end of the second electronic switch is connected
Ranks are different from the matrix ranks where the Anneta module of the output end of the first electronic switch of connection.
In one embodiment, for connecting positive supply, another power end is used for a power end of the first electronic switch
Connect negative supply；
One power end of the second electronic switch is for connecting positive supply, and another power end is for connecting negative supply.
In one embodiment, control module is also connected with the control terminal of RFID read-write module, for controlling RFID module for reading and writing
Corresponding RFID information is read and write by the Anneta module being connected.
In one embodiment, the first electronic switch and the first electronic switch are one analog switch of multiselect.
In one embodiment, the first electronic switch and the first electronic switch are that HEF4051BT eight selects a mould
Quasi- switch.
In one embodiment, control module MCU.
In one embodiment, RFID read-write module is RFID card reading circuit.
In one embodiment, Anneta module is antenna plate.
Multiple antennas RFID circuit provided by the utility model, control module pass through the first electronic switch of control and the
The input terminal of two electronic switch is connect with each output end, realizes that the output end of the first electronic switch is cut with the second electronics
Connection combination different between the output end of switch is changed, the Anneta module quantity according to connecting path carry under various combination is different.
Based on this, the carry mutiple antennas module in same RFID read-write module is realized, and control carry antenna can be selected by access
The quantity of module, to reduce the volume and cost of multiple antennas RFID circuit.
The utility model embodiment also provides a kind of multiple antennas RFID reader, including reader shell, and setting exists
Multiple antennas RFID circuit in reader shell.
Multiple antennas RFID reader provided by the utility model embodiment meets RFID by multiple antennas RFID circuit
In the application of multiple antennas application while the volume and cost of multiple antennas RFID reader is effectively reduced in circuit.
Detailed description of the invention
Fig. 1 is multiple antennas RFID circuit module connection figure；
Fig. 2 is the multiple antennas RFID circuit module connection figure of optional embodiment；
Fig. 3 is the power supply connection schematic diagram of electronic switch.
Specific embodiment
The purpose of this utility model, technical solution and technical effect in order to better understand, below in conjunction with attached drawing and reality
It applies example and further explaining illustration is carried out to the utility model.It states simultaneously, embodiments described below is only used for explaining this
Utility model is not used to limit the utility model.
Fig. 1 is multiple antennas RFID circuit module connection figure, as shown in Figure 1, including the first electronic switch 101, second
Electronic switch 102, control module 103, RFID read-write module 104 and Anneta module 105；
First electronic switch 101 and the second electronic switch 102 include input terminal TX and multiple output ends
(TX1~TXn)；Wherein, the Card read/write end of the input terminal TX connection RFID read-write module 104 of the first electronic switch 101
Out, the input terminal TX ground connection of the second electronic switch 102；
Any output end (TX1~TXn) of first electronic switch 101 can be with times of the second electronic switch 102
One output end (TX1~TXn) forms access, and one or more Anneta modules are connected on access；
Wherein, the output end (TX1~TXn) of the first electronic switch 101 and the second electronic switch 102 is defeated
Different connections is combined between outlet (TX1~TXn), and the Anneta module quantity in different connecting paths is different.As shown in Figure 1, the
The output end of one electronic switch 101 has n, and the output end of the second electronic switch 102 also has n, and the first electronics is cut
The output end (TX1~TXn) of the output end (TX1~TXn) and the second electronic switch 102 that change switch 101 may make up n2Kind
Connection combination, i.e., at most may include n2Kind Anneta module quantity.The quantity of Anneta module 105 on any connecting path can be preparatory
Setting.
Control module 103 connects the control terminal A of the first electronic switch 101, and opens for controlling the switching of the first electronics
The input terminal TX of pass 101 is connect with each output end (TX1~TXn)；Control module 103 is also connected with the second electronic switch 102
Control terminal B, and the input terminal TX for controlling the second electronic switch 103 is connect with each output end (TX1~TXn).
Control module 103 can be control circuit or control chip.Wherein, the first electronic switch 101 or the second electronics
Switching 102 input terminal TX of switch and the connection of output end (TX1~TXn) can be controlled by logic level, and logic level is input to
The control terminal A or B of first electronic switch 101 or the second electronic switch 102, the first electronic switch 101 or the
Two electronic switch 102 select a corresponding output end (TX1~TXn) and input terminal TX according to the logic level at a moment
Connection.Based on this, control circuit is the circuit of exportable logic level, and control chip is to be previously written logic level control logic
Or the chip that logic is controllable.In an optional embodiment, control module 103 is MCU.Electronics switching is previously written in MCU
The control logic of switch, such as dynamic polling or jump inquiry control logic, the first electronic switch of control 101 or the second electricity
The connection of son switching switch 102 input terminal TX and output end (TX1~TXn).
Multiple antennas RFID circuit provided by the present embodiment, control module 103 pass through the first electronic switch 101 of control
It is connect with the input terminal TX of the second electronic switch 102 with each output end (TX1~TXn), realizes the first electronic switch
The connection different between the output end (TX1~TXn) of the second electronic switch 102 of 101 output end (TX1~TXn) is combined,
105 quantity of Anneta module according to connecting path carry under various combination is different.Based on this, realize in same RFID read-write module
Carry mutiple antennas module 105 on 104, and the quantity of control carry Anneta module 105 can be selected by access, to reduce more days
The volume and cost of line RFID circuit.
Fig. 2 be an optional embodiment multiple antennas RFID circuit module connection figure, as shown in Fig. 2, Anneta module 105 with
Multistage matrix form arrangement；Wherein, multistage order of matrix number and the first electronic switch 101 or the second electronic switch
102 fan-out is equal；
Each Anneta module 105 is separately connected the adjacent antenna module 105 with it with a line and same row；
Anneta module 105 and the switching of the first electronics of the first row, last line, first row or last column of multistage matrix
The output end (TX1~TXn) of switch 101 connects one to one；
Anneta module 105 and the switching of the second electronics of the first row, last line, first row or last column of multistage matrix
The output end (TX1~TXn) of switch 102 connects one to one；Wherein, the output end of the second electronic switch 102 is connected
Matrix ranks where the Anneta module 105 of (TX1~TXn) with connect the first electronic switch 101 output end (TX1~
TXn the matrix ranks where Anneta module 105) are different.
The multiple antennas RFID circuit module of this optional embodiment, passes through the Anneta module arranged with multistage matrix form
105, it realizes in same 104 carry 1 of RFID read-write module to n2- 1 Anneta module is completed in same RFID read-write module 104
105 quantity of carry Anneta module it is linear selected.
Fig. 3 is the power supply connection schematic diagram of electronic switch, as shown in figure 3, the first electronic switch 101 or the
One power end V+ connection positive supply of two electronic switch 102, another power end V- connection negative supply.
Generally, the power end of the first electronic switch 101 or the second electronic switch 102 is to connect positive supply respectively
The ground and.In the present embodiment, by a power end V+ connection of the first electronic switch 101 or the second electronic switch 102
Positive supply, another power end V- connection negative supply, so that the first electronic switch 101 or the second electronic switch 102 are not
RFID signal in circuit can be had an impact, it is ensured that RFID signal free of losses transmission, solve multiple antennas RFID circuit read away from
From close problem.
Wherein, the first electronic switch 101 or the second electronic switch 102 can be one analog switch of multiselect, such as 16
1 analog switch, 8 are selected to select 1 analog switch or 4 select 1 analog switch etc..Each output end of one analog switch of multiselect is correspondingly connected with one
Anneta module 105, RFID read-write module 103 can realize the company with Anneta module 105 by the input terminal of one analog switch of multiselect
It connects.In an optional embodiment, selecting HEF4051BT eight to select an analog switch is the first electronic switch 101 or the second
Electronic switch 102 realizes the carry 1 to 8 in same RFID read-write module 1042- 1 Anneta module 105.
As shown in figure 3, control module 103 is also connected with the control of RFID read-write module 104 in an optional embodiment
C is held, corresponding RFID information is read and write by the Anneta module 105 being connected for controlling RFID read-write module 104.Based on this,
The volume of multiple antennas RFID circuit is effectively reduced.Wherein, RFID card reading circuit can be selected in RFID module for reading and writing 104 or RFID is read
Write chip.Meanwhile Anneta module 105 can be the antenna plate of naked antenna or access antenna.
The utility model embodiment also provides a kind of multiple antennas RFID reader, including reader shell, and setting exists
In reader shell as above-described embodiment multiple antennas RFID circuit.By multiple antennas RFID circuit, meets RFID circuit and exist
The application of multiple antennas application, while the volume and cost of multiple antennas RFID reader is effectively reduced.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Above embodiments only express the several embodiments of the utility model, and the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With novel protection scope.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of multiple antennas RFID circuit, which is characterized in that including the first electronic switch, the second electronic switch, control
Molding block, RFID read-write module and mutiple antennas module；
First electronic switch and second electronic switch include input terminal and multiple output ends；Wherein,
The input terminal of first electronic switch connects the Card read/write end of the RFID read-write module, the second electronics switching
The input end grounding of switch；
Any output end of first electronic switch can be formed with any output end of second electronic switch
Access, and one or more Anneta modules are connected on the access；
The control module connects the control terminal of first electronic switch, and opens for controlling the first electronics switching
The input terminal of pass is connect with each output end；The control module is also connected with the control terminal of second electronic switch, is used in combination
It is connect in the input terminal for controlling second electronic switch with each output end.
2. multiple antennas RFID circuit according to claim 1, which is characterized in that the Anneta module is with multistage matrix form
Arrangement；Wherein, the fan-out phase of the multistage order of matrix number and the first electronic switch or the second electronic switch
Deng；
Each Anneta module is separately connected the adjacent antenna module with it with a line and same row；
The first row, last line, first row or last Anneta module arranged of the multistage matrix are cut with first electronics
The output end for changing switch connects one to one；
The first row, last line, first row or last Anneta module arranged of the multistage matrix are cut with second electronics
The output end for changing switch connects one to one；Wherein, the Anneta module institute of the output end of second electronic switch is connected
Matrix ranks it is different from the matrix ranks where the Anneta module for the output end for connecting first electronic switch.
3. multiple antennas RFID circuit according to claim 1, which is characterized in that an electricity of first electronic switch
Source is for connecting positive supply, and another power end is for connecting negative supply；
One power end of second electronic switch is for connecting positive supply, and another power end is for connecting negative supply.
4. multiple antennas RFID circuit according to claim 1, which is characterized in that the control module is also connected with the RFID
The control terminal of module for reading and writing passes through the corresponding RFID letter of the Anneta module being connected read-write for controlling the RFID read-write module
Breath.
5. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that first electronics is cut
It changes switch and first electronic switch is one analog switch of multiselect.
6. multiple antennas RFID circuit according to claim 5, which is characterized in that first electronic switch and described
First electronic switch is that HEF4051BT eight selects an analog switch.
7. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that the control module is
MCU。
8. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that the RFID read-write mould
Block is RFID card reading circuit.
9. multiple antennas RFID circuit according to any one of claims 1 to 4, which is characterized in that the Anneta module is
Antenna plate.
10. a kind of multiple antennas RFID reader, which is characterized in that including reader shell, and be arranged outside the reader
Multiple antennas RFID circuit as claimed in any one of claims 1 to 9 in shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820599830.4U CN208873147U (en) | 2018-04-25 | 2018-04-25 | Multiple antennas RFID circuit and multiple antennas RFID reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820599830.4U CN208873147U (en) | 2018-04-25 | 2018-04-25 | Multiple antennas RFID circuit and multiple antennas RFID reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873147U true CN208873147U (en) | 2019-05-17 |
Family
ID=66461379
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820599830.4U Active CN208873147U (en) | 2018-04-25 | 2018-04-25 | Multiple antennas RFID circuit and multiple antennas RFID reader |
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| Country | Link |
|---|---|
| CN (1) | CN208873147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108280383A (en) * | 2018-04-25 | 2018-07-13 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit |
-
2018
- 2018-04-25 CN CN201820599830.4U patent/CN208873147U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108280383A (en) * | 2018-04-25 | 2018-07-13 | 广州周立功单片机科技有限公司 | Multiple antennas RFID circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510660 Room 1603-1607, 117 Longyi Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Ligong Science and Technology Co.,Ltd. Address before: 510660 Room 1603-1607, 117 Longyi Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU ZLG SINGLECHIP TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210210 Address after: 510000 room 306, 3rd floor, 43 Sicheng Road, software park, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU ZHIYUAN ELECTRONICS Co.,Ltd. Address before: 510660 Room 1603-1607, 117 Longyi Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Ligong Science and Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510000 room 306, 3rd floor, 43 Sicheng Road, software park, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU ZHIYUAN ELECTRONICS Co.,Ltd. Address before: 510000 room 306, 3rd floor, 43 Sicheng Road, software park, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU ZHIYUAN ELECTRONICS Co.,Ltd. |