CN214623661U - Card reader - Google Patents
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- CN214623661U CN214623661U CN202120546307.7U CN202120546307U CN214623661U CN 214623661 U CN214623661 U CN 214623661U CN 202120546307 U CN202120546307 U CN 202120546307U CN 214623661 U CN214623661 U CN 214623661U
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Abstract
The utility model discloses a card reader, include: at least two antenna coils, wherein the at least two antenna coils are arranged at a preset angle; and the at least two card reading information processing units are respectively connected with the at least two antenna coils and are used for respectively reading the electromagnetic signals of the target card induced by the at least two antenna coils. By adopting the technical scheme, the problems that the card reader can only read the card horizontally or only vertically in the card reading process in the related technology are solved.
Description
Technical Field
The utility model relates to the field of communications, particularly, relate to a card reader.
Background
The antenna of a high Frequency Radio Frequency Identification (RFID) reader in the market at present can only realize reading in the vertical direction, and a user must keep cards parallel when using the antenna. The card swiping mode of a user is limited, the card swiping waiting time is prolonged, and the card swiping efficiency is greatly reduced.
Aiming at the problems that in the card reading process of the card reader in the related technology, only horizontal card reading or only vertical card reading can be carried out and the like, an effective solution is not provided.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a card reader to solve among the correlation technique card reader at the in-process of reading the card, can only the level read the card or can only read the card scheduling problem perpendicularly.
According to an embodiment of the present invention, there is provided a card reader, including: at least two antenna coils, wherein the at least two antenna coils are arranged at a preset angle; and the at least two card reading information processing units are respectively connected with the at least two antenna coils and are used for respectively reading the electromagnetic signals of the target card induced by the at least two antenna coils.
In one exemplary embodiment, the card reader further comprises: any one of the at least two leads is used for connecting the antenna coil and the card reading information processing unit.
In one exemplary embodiment, the at least two antenna coils include: the antenna comprises a first antenna coil and a second antenna coil, wherein the first antenna coil and the second antenna coil are arranged at a preset angle, and the at least two card reading information processing units comprise: the card reader comprises a first card reading information processing unit and a second card reading information processing unit.
In an exemplary embodiment, the card reader further includes: the first conflict conducting wire is respectively connected with the first card reading information processing unit and the second card reading information processing unit and used for sending a reading stopping control instruction to the second card reading information processing unit through the first conflict conducting wire under the condition that the first card reading information processing unit reads the electromagnetic signal of the target card, and the first conflict conducting wire is also used for sending the reading stopping control instruction to the first card reading information processing unit through the first conflict conducting wire under the condition that the second card reading information processing unit reads the target card.
In an exemplary embodiment, the card reader further includes: the first processor is respectively connected with the first card reading information processing unit and the second card reading information processing unit, and is used for sending a reading stopping control instruction to the second card reading information processing unit when the first card reading information processing unit reads the electromagnetic signal of the target card, and is also used for sending the reading stopping control instruction to the first card reading information processing unit when the second card reading information processing unit reads the target card.
In an exemplary embodiment, the first processor is further configured to control the first card reading information processing unit and the second card reading information processing unit to read the electromagnetic signal of the target card in a polling manner.
In one exemplary embodiment, the at least two antenna coils include: the third antenna coil, fourth antenna coil and fifth antenna coil, third antenna coil, fourth antenna coil and fifth antenna coil two liang mutually perpendicular set up, two at least card information processing units of reading include: a third card reading information processing unit, a fourth card reading information processing unit and a fifth card reading information processing unit.
In one exemplary embodiment, the card reader further comprises: and the second processor is respectively connected with the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit and is used for sending a control instruction for stopping reading to the other two card reading information processing units under the condition that any one of the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit reads the electromagnetic signal of the target card.
In an exemplary embodiment, the second processor is further configured to control the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit to read the electromagnetic signal of the target card in a polling manner.
In one exemplary embodiment, the preset angle is taken from the set [45 ]°，135°]。
Through the utility model discloses, the card reader adopts at least two antenna coils, wherein, the at least two antenna coils are set with the preset angle; and the card reader is provided with at least two card reading information processing units which are respectively connected with the at least two antenna coils and used for respectively reading the electromagnetic signals of the target card induced by the at least two antenna coils. By adopting the technical scheme, the problems that the card reader can only horizontally read the card or can only vertically read the card and the like in the card reading process in the related technology are solved, so that the card reader can read the card in multiple dimensions in a mode of combining at least two antenna coils, and the purposes of facilitating card swiping of a user and efficiently swiping the card are achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a block diagram of a conventional high frequency RFID system according to an embodiment of the present invention;
FIG. 2 is a card reader configuration diagram (one) according to an embodiment of the present invention;
FIG. 3 is a diagram of a card reader architecture (two) according to an embodiment of the present invention;
fig. 4 is a flow chart of conflict handling between a vertical read-write system and a horizontal read-write system according to an embodiment of the present invention;
FIG. 5 is a card reader block diagram (III) according to an embodiment of the invention;
fig. 6 is a card reader configuration diagram (iv) according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
For a better understanding of the present invention, the following brief description is provided for the related art and technical terms related to the present invention:
radio Frequency Identification (RFID) is a non-contact automatic Identification technology, which transmits information by electromagnetic waves or inductive coupling to automatically identify a target object. Compared with other automatic transmission and identification technologies such as bar codes, magnetic cards, contact type IC cards and the like, RFID is quite widely applied because manual intervention is not needed, a plurality of targets can be identified simultaneously, the storage capacity is large, and the RFID can work in severe environments and the like.
The technology of low frequency (125K-134.2K), high frequency (13.56Mhz), ultrahigh frequency, microwave and the like are commonly used, and the high frequency is earlier in application, so that the technology is widely applied to occasions of short-distance (less than 10cm) reading, such as fixed asset management, production automation, animal and vehicle identification, road toll, entrance guard, storage anti-counterfeiting and the like. The common high-frequency RFID system comprises a reader-writer, a tag and application software, and the key for determining the reading distance and the performance is the design of a coil between the reader-writer and the tag.
Fig. 1 is a block diagram of a conventional high frequency RFID system according to an embodiment of the present invention, and the conventional high frequency RFID system is as shown in fig. 1, and includes: the reader-writer coil, the reader-writer chip and the wires connected with the reader-writer coil realize the card reading in the direction vertical to the reader-writer coil; the utility model aims at providing a novel high frequency RFID read write line antenna system design that the 3D direction can read.
In order to achieve the above object, the present invention provides a card reader, fig. 2 is a card reader structure diagram (i) according to an embodiment of the present invention, as shown in fig. 2, which takes at least two antenna coils as two examples, including:
at least two antenna coils 20, wherein the at least two antenna coils are arranged at a preset angle; and the at least two card reading information processing units 22 are respectively connected with the at least two antenna coils and are used for respectively reading the electromagnetic signals of the target card induced by the at least two antenna coils.
Through the utility model discloses, the card reader adopts at least two antenna coils, wherein, the at least two antenna coils are set with the preset angle; and the card reader is provided with at least two card reading information processing units which are respectively connected with the at least two antenna coils and used for respectively reading the electromagnetic signals of the target card induced by the at least two antenna coils. By adopting the technical scheme, the problems that the card reader can only horizontally read the card or can only vertically read the card and the like in the card reading process in the related technology are solved, so that the card reader can read the card in multiple dimensions in a mode of combining at least two antenna coils, and the purposes of facilitating card swiping of a user and efficiently swiping the card are achieved.
Fig. 3 is a structure diagram (ii) of the card reader according to an embodiment of the present invention, and in an alternative embodiment, as shown in fig. 3, the card reader further includes: and at least two conducting wires 24, wherein any one of the at least two conducting wires is used for connecting the antenna coil and the card reading information processing unit. In this embodiment, in order to implement communication connection between an antenna coil and a card reading information processing unit in a card reader, a wire is used to connect the antenna coil and the card reading information processing unit together, and assuming that there are two antenna coils, namely an antenna coil a and an antenna coil B, in the card reader, there are two card reading information processing units, namely a card reading information processing unit X and a card reading information processing unit Y, at least two wires, namely a wire a and a wire B, in the card reader, where the wire a connects the antenna coil a and the card reading information processing unit X, and the wire B connects the antenna coil B and the card reading information processing unit Y.
In an alternative embodiment, as shown in fig. 3, the at least two antenna coils comprise: the antenna comprises a first antenna coil and a second antenna coil, wherein the first antenna coil and the second antenna coil are arranged at a preset angle, and the at least two card reading information processing units comprise: the card reader comprises a first card reading information processing unit and a second card reading information processing unit.
It should be noted that, in this embodiment, in order to enable the user to perform the card swiping operation from both the horizontal direction and the vertical direction, the first antenna coil and the second antenna coil are usedSet at a predetermined angle, wherein the predetermined angle is taken from the set [45 ]°，135°]And the predetermined angle is preferably 90 degrees°That is, the first antenna coil and the second antenna coil are perpendicular to each other, and for better explanation, the description is made from the angle that the first antenna coil and the second antenna coil are perpendicular to each other, when the user swipes the card horizontally, the horizontal antenna coil identifies the user card, when the user swipes the card vertically, the vertical antenna coil identifies the user card, and for better processing the electromagnetic signal sent from the antenna coil, corresponding card reading information processing units are respectively arranged for the two antenna coils.
In an alternative embodiment, as shown in fig. 3, the card reader further includes: the first conflict conducting wire 26 is respectively connected with the first card reading information processing unit and the second card reading information processing unit, and is used for sending a reading stop control instruction to the second card reading information processing unit through the first conflict conducting wire when the first card reading information processing unit reads the electromagnetic signal of the target card, and the first conflict conducting wire is also used for sending a reading stop control instruction to the first card reading information processing unit through the first conflict conducting wire when the second card reading information processing unit reads the target card.
For better understanding, in this embodiment, the vertical first antenna coil and the corresponding first card reading information processing unit can be regarded as a vertical reading system, and the horizontal second antenna coil and the corresponding second card reading information processing unit can be regarded as a horizontal reading system, so as to avoid mutual interference between the two systems, and to read information in the user card more efficiently, a wheel training mechanism is designed, fig. 4 is a flow chart of collision processing between the vertical reading and writing system and the horizontal reading and writing system according to an embodiment of the present invention, and the specific steps are as follows:
step S202: after the equipment is powered on, the vertical reading system and the horizontal reading system work normally in a training state;
step S204: when a user conducts a card swiping action, after any system preferentially captures, the other side is immediately informed to stop sending to prevent interference;
step S206: when the user finishes the card swiping behavior, the opposite side is immediately informed to continue the rotation training mode, and meanwhile, the user also enters the rotation training mode.
It should be noted that, as to the training states of the vertical reading system and the horizontal reading system in step S202, specifically, each 1 millisecond or each 1 nanosecond may be used, that is, the interval between the vertical reading system reading and the horizontal reading system reading is 1 millisecond or 1 nanosecond.
In this period, in order to make the whole card reader read more efficiently and avoid reading conflict, a conflict conducting wire is arranged between a first card reading information processing unit in the vertical reading system and a second card reading information processing unit in the horizontal reading system, when the first card reading information processing unit reads an electromagnetic signal of a target card, a control instruction for stopping reading is sent to the second card reading information processing unit through the conflict conducting wire, and when the second card reading information processing unit reads the electromagnetic signal of the target card, the control instruction for stopping reading is sent to the first card reading information processing unit through the conflict conducting wire, so that reading conflict can be avoided.
Fig. 5 is a block diagram (iii) of a card reader according to an embodiment of the present invention, and in an alternative embodiment, as shown in fig. 5, the first conflict line 26 may be replaced by a first process 28, and the card reader further includes: the first processor 28 is connected to the first card reading information processing unit and the second card reading information processing unit, and configured to send a control instruction for stopping reading to the second card reading information processing unit when the first card reading information processing unit reads the electromagnetic signal of the target card, and also send a control instruction for stopping reading to the first card reading information processing unit when the second card reading information processing unit reads the target card.
It should be noted that, in the embodiment of the present invention, the connection between the first processor and the first card reading information processing unit and the connection between the second processor and the second card reading information processing unit may also be through a wire, and the embodiment of the present invention does not limit this.
It should be noted that, because some fault problems may exist or the processing efficiency is not high in order to avoid reading conflicts by means of a conflict wire, in order to avoid reading conflicts more reliably, a processor is provided to implement the function of the conflict wire, specifically, a first processor is connected with a first card reading information processing unit and a second card reading information processing unit by a wire, if the first card reading information processing unit reads an electromagnetic signal of a corresponding target card, the read message is sent to the first processor by the wire, so that the first processor knows that the first card reading information processing unit has successfully read, and at this time, the first processor sends a control instruction for stopping reading to the second card reading information processing unit by the wire. Similarly, if the second card reading information processing unit reads the electromagnetic signal of the corresponding target card first, the first processor performs the same operation as described above, and redundant description is omitted here.
In an optional embodiment, the first processor 28 is further configured to control the first card reading information processing unit and the second card reading information processing unit to read the electromagnetic signal of the target card in a polling manner. It should be noted that, for the first processor, the electromagnetic signal of the target card may be read every 1 millisecond or every 1 nanosecond.
Fig. 6 is a card reader structure diagram (iv) according to an embodiment of the present invention, and in an alternative embodiment, as shown in fig. 6, the at least two antenna coils include: the third antenna coil, fourth antenna coil and fifth antenna coil, third antenna coil, fourth antenna coil and fifth antenna coil two liang mutually perpendicular set up, two at least card information processing units of reading include: a third card reading information processing unit, a fourth card reading information processing unit and a fifth card reading information processing unit.
In order to enable a user to better perform a card swiping operation from multiple directions, the embodiment further provides a card reader for reading a user card from three directions, as shown in fig. 6, the card reader has three antenna coils, any two of the three antenna coils are arranged perpendicular to each other, and each corresponding antenna coil is provided with a card reading information processing unit.
In an optional embodiment, the card reader further comprises: and the second processor 30 is connected with the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit respectively, and is used for sending a control instruction for stopping reading to the other two card reading information processing units under the condition that any one of the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit reads the electromagnetic signal of the target card.
Specifically, if the third card reading information processing unit reads the electromagnetic signal of the corresponding target card, the read message is sent to the second processor through the wire, so that the second processor knows that the third card reading information processing unit has successfully read the target card, and at this time, the second processor sends a control instruction for stopping reading to the fourth card reading information processing unit and the fifth card reading information processing unit through the wire. Similarly, if the fourth card reading information processing unit and the fifth card reading information processing unit read the electromagnetic signals of the corresponding target card first, the second processor performs the same operation, and redundant description is omitted here.
In an optional embodiment, the second processor 30 is further configured to control the third card reading information processing unit, the fourth card reading information processing unit, and the fifth card reading information processing unit to read the electromagnetic signal of the target card in a polling manner. It should be noted that, for the second processor, the electromagnetic signal of the target card may be read every 1 millisecond or every 1 nanosecond.
In an optional embodiment, the main control chip of the card reading information processing unit is an MCU with a USB interface, an IIC interface or a serial interface. It should be noted that the main control chip may adopt an MCU having a USB interface, an IIC interface, or a serial interface, so as to facilitate data transmission with an external device. In a preferred embodiment, the main control chip may use an MCU of LPC214X series as the main control chip, and the chip uses an ARM7TDM-S core with a 2.0Full-speed interface. The utility model discloses main control chip LPC214X is owing to have USB transmission interface, consequently, and the accessible USB interface carries out data transmission with the peripheral hardware. Because the main control chip LPC214X also has an IIC interface, data transmission can be performed with peripheral equipment through the IIC interface; the master control chip LPC214X may also perform data transmission with peripheral devices through a serial interface.
Through the utility model discloses, the card reader adopts at least two antenna coils, wherein, the at least two antenna coils are set with the preset angle; and the card reader is provided with at least two card reading information processing units which are respectively connected with the at least two antenna coils and used for respectively reading the electromagnetic signals of the target card induced by the at least two antenna coils. By adopting the technical scheme, the problems that the card reader can only horizontally read the card or can only vertically read the card and the like in the card reading process in the related technology are solved, so that the multi-dimensional card of the card reader can be read in a mode of combining at least two antenna coils, and the aims of facilitating card swiping of a user and efficiently swiping the card are fulfilled.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A card reader, comprising:
at least two antenna coils, wherein the at least two antenna coils are arranged at a preset angle;
and the at least two card reading information processing units are respectively connected with the at least two antenna coils and are used for respectively reading the electromagnetic signals of the target card induced by the at least two antenna coils.
2. The card reader of claim 1, further comprising: any one of the at least two leads is used for connecting the antenna coil and the card reading information processing unit.
3. The card reader of claim 1, wherein the at least two antenna coils comprise: the first antenna coil and the second antenna coil are arranged at the preset angle, and the at least two card reading information processing units comprise: the card reader comprises a first card reading information processing unit and a second card reading information processing unit.
4. The card reader of claim 3, further comprising: the first conflict conducting wire is respectively connected with the first card reading information processing unit and the second card reading information processing unit and used for sending a reading stopping control instruction to the second card reading information processing unit through the first conflict conducting wire under the condition that the first card reading information processing unit reads the electromagnetic signal of the target card, and the first conflict conducting wire is also used for sending the reading stopping control instruction to the first card reading information processing unit through the first conflict conducting wire under the condition that the second card reading information processing unit reads the target card.
5. The card reader of claim 4, further comprising: the first processor is respectively connected with the first card reading information processing unit and the second card reading information processing unit, and is used for sending a reading stopping control instruction to the second card reading information processing unit when the first card reading information processing unit reads the electromagnetic signal of the target card, and is also used for sending the reading stopping control instruction to the first card reading information processing unit when the second card reading information processing unit reads the target card.
6. The card reader of claim 5, wherein the first processor is further configured to control the first card reading information processing unit and the second card reading information processing unit to read the electromagnetic signal of the target card in a polling manner.
7. The card reader of claim 1, wherein the at least two antenna coils comprise: the third antenna coil, fourth antenna coil and fifth antenna coil, third antenna coil, fourth antenna coil and fifth antenna coil two liang mutually perpendicular set up, two at least card information processing units of reading include: a third card reading information processing unit, a fourth card reading information processing unit and a fifth card reading information processing unit.
8. The card reader of claim 7, further comprising: and the second processor is respectively connected with the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit and is used for sending a control instruction for stopping reading to the other two card reading information processing units under the condition that any one of the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit reads the electromagnetic signal of the target card.
9. The card reader of claim 8, wherein the second processor is further configured to control the third card reading information processing unit, the fourth card reading information processing unit and the fifth card reading information processing unit to read the electromagnetic signal of the target card in a polling manner.
10. The card reader according to any of claims 1 to 9, characterized in that the preset angle is taken from the set [45 ]°，135°]。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120546307.7U CN214623661U (en) | 2021-03-16 | 2021-03-16 | Card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120546307.7U CN214623661U (en) | 2021-03-16 | 2021-03-16 | Card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214623661U true CN214623661U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120546307.7U Active CN214623661U (en) | 2021-03-16 | 2021-03-16 | Card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214623661U (en) |
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2021
- 2021-03-16 CN CN202120546307.7U patent/CN214623661U/en active Active
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