CN213545286U - Compatible card reader - Google Patents
Compatible card reader Download PDFInfo
- Publication number
- CN213545286U CN213545286U CN202022802327.4U CN202022802327U CN213545286U CN 213545286 U CN213545286 U CN 213545286U CN 202022802327 U CN202022802327 U CN 202022802327U CN 213545286 U CN213545286 U CN 213545286U
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- card reader
- radio frequency
- utility
- compatible
- model
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Abstract
The utility model belongs to the technical field of radio frequency identification, and discloses a compatible card reader.A microcontroller is fixed in a shell through screws and connected with a radio frequency circuit board through a connecting circuit; the casing side inlays and is equipped with the USB interface, and the casing upper surface inlays and is equipped with the LCD touch-sensitive screen, and microcontroller passes through interconnecting link and is connected with radio frequency circuit board, USB interface and LCD touch-sensitive screen, and the casing upper surface inlays and is equipped with the status indicator lamp, and the casing side inlays and is equipped with the interface that charges, and casing bottom splice has a plurality of silica gel supporting pads. The utility model discloses can be to the compatible reading and writing of electronic tags of different standards, to the compatible reading and writing of electronic tags of different frequency channels, the people of being convenient for use. The utility model can display the working state of the device through the state indicating lamp, which is convenient for checking; the charging interface can be connected with an external power supply to provide electric quantity for the device; can cushion the device through the silica gel supporting pad, can play effectual guard action.
Description
Technical Field
The utility model belongs to the technical field of radio frequency identification, especially, relate to a compatible formula card reader.
Background
At present: the radio frequency identification technology, also known as FRID technology, is a non-contact automatic identification technology that has emerged in the 90 s of the 20 th century, and is a technology that realizes contactless information transmission by spatial coupling (electromagnetic field or alternating magnetic field) of radio frequency signals and achieves the purpose of identification through the transmitted information. The method does not need to establish mechanical or optical contact between an identification system and a specific target, automatically identifies the object and obtains related information data, does not need manual intervention in process operation, can be applied to various severe environmental conditions, and is beneficial to identifying and managing various objects under different states. Various card readers are available on the market at the present stage of China, convenience is brought to common people, and meanwhile certain troubles are caused due to incompatibility of the card readers.
Through the above analysis, the problems and defects of the prior art are as follows:
the existing card reader has poor compatibility and is easy to influence the use of users.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides a compatible formula card reader.
The utility model discloses a realize like this, a compatible formula card reader is provided with:
a housing;
a microcontroller is fixed in the shell through screws and connected with a radio frequency circuit board through a connecting circuit;
the USB interface is embedded in the side face of the shell, the LCD touch screen is embedded in the upper surface of the shell, and the microcontroller is connected with the radio frequency circuit board, the USB interface and the LCD touch screen through connecting lines.
Further, a status indicator lamp is embedded on the upper surface of the shell.
Further, the side surface of the shell is embedded with a charging interface.
Further, casing bottom glue joint has a plurality of silica gel supporting pads.
Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:
the utility model discloses can be to the compatible reading and writing of electronic tags of different standards, to the compatible reading and writing of electronic tags of different frequency channels, the people of being convenient for use. The utility model can display the working state of the device through the state indicating lamp, which is convenient for checking; the charging interface can be connected with an external power supply to provide electric quantity for the device; can cushion the device through the silica gel supporting pad, can play effectual guard action.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a compatible card reader according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a silica gel support pad provided in an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a connection principle of a compatible card reader according to an embodiment of the present invention.
In the figure: 1. a housing; 2. a USB interface; 3. a charging port; 4. a status indicator light; 5. a silica gel support pad; 6. LCD touch screen.
Fig. 4 is a flowchart illustrating the working principle of the compatible card reader according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
To the problem that prior art exists, the utility model provides a compatible formula card reader, it is right to combine the figure below the utility model discloses do detailed description.
As shown in fig. 1 to fig. 3, a microcontroller is fixed inside a housing 1 of the compatible card reader provided in the embodiment of the present invention through screws, and the microcontroller is connected to a radio frequency circuit board through a connection line;
the side of the shell 1 is embedded with a USB interface 2, the upper surface of the shell 1 is embedded with an LCD touch screen 6, and the microcontroller is connected with the radio frequency circuit board, the USB interface and the LCD touch screen through connecting lines.
Preferably, a status indicator lamp 4 is fitted on the upper surface of the housing 1. The working state of the device can be displayed through the state indicating lamp, and the device is convenient to check.
Preferably, charging inlet 3 is fitted to a side surface of case 1. The charging interface can be connected with an external power supply to provide electric quantity for the device.
Preferably, the bottom of the shell 1 is glued with a plurality of silica gel supporting pads 5. Can cushion the device through the silica gel supporting pad, can play effectual guard action.
When the utility model is used, the card reader can demodulate and decode the received signal after receiving the carrier signal from the electronic tag;
the reader sends dual sideband amplitude shift keying ((DSB-ASK) or single sideband amplitude shift keying (SSB-ASK) or reverse amplitude shift keying (PR-ASK)) modulated radio frequency carrier information to one or more electronic tags, which signals are in a Pulse Interval Encoding (PIE) format;
when the card reader needs to obtain information from the electronic tag, firstly a carrier signal without modulation is sent and then a backscattering echo is monitored. The tag communicates information by backscattering the amplitude or phase of a modulated radio frequency carrier. The encoding format used to respond to reader commands is either FMO or Miller modulated subcarrier. The communication between the reader and the tag is half duplex, i.e. the protocol does not require the tag to demodulate the reader commands in backscatter. The tag should not respond to the mandatory command or the optional command using full duplex communication.
As shown in fig. 4, when initializing the chip, the chip is first confirmed to be normal. And initializing the interface in a parallel mode according to the time sequence, writing data into a register of the microcontroller and reading the data, and if the written data and the read data are the same, passing the read-write test of the register. In addition, whether the chip can be normally reset and interrupted or not needs to be verified, and the verification of the reset can be judged by whether the data is written in and read out or not. AS3992 generates a corresponding interrupt after the data transmission is completed, and writes the interrupt reason into the interrupt register, so that data can be written into the FIFO of AS3992 and then any data can be transmitted, and the interrupt can be confirmed according to whether the MCU interrupt function will be executed. After the test is passed through the reset, data read-write and interrupt, the substantial parameter configuration can be carried out, including protocol selection, frequency setting, sending and receiving options, predistortion parameters and the like.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.
Claims (4)
1. A compatible card reader, characterized in that the compatible card reader is provided with:
a housing;
a microcontroller is fixed in the shell through screws and connected with a radio frequency circuit board through a connecting circuit;
the USB interface is embedded in the side face of the shell, the LCD touch screen is embedded in the upper surface of the shell, and the microcontroller is connected with the radio frequency circuit board, the USB interface and the LCD touch screen through connecting lines.
2. The compatible card reader of claim 1, wherein a status indicator light is embedded in an upper surface of the housing.
3. The compatible card reader according to claim 1, wherein a charging interface is embedded in a side surface of the housing.
4. The compatible card reader of claim 1, wherein a plurality of silicone pads are glued to the bottom of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802327.4U CN213545286U (en) | 2020-11-27 | 2020-11-27 | Compatible card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802327.4U CN213545286U (en) | 2020-11-27 | 2020-11-27 | Compatible card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213545286U true CN213545286U (en) | 2021-06-25 |
Family
ID=76485298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022802327.4U Expired - Fee Related CN213545286U (en) | 2020-11-27 | 2020-11-27 | Compatible card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213545286U (en) |
-
2020
- 2020-11-27 CN CN202022802327.4U patent/CN213545286U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210625 Termination date: 20211127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |