CN203673492U - Radio frequency identification card reader - Google Patents
Radio frequency identification card reader Download PDFInfo
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- CN203673492U CN203673492U CN201320884820.2U CN201320884820U CN203673492U CN 203673492 U CN203673492 U CN 203673492U CN 201320884820 U CN201320884820 U CN 201320884820U CN 203673492 U CN203673492 U CN 203673492U
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- radio
- frequency
- module
- identification card
- radio frequency
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Abstract
The utility model discloses a radio frequency identification card reader, comprising a control unit, a radio frequency module connected with the control unit, and a signal return module connected with the radio frequency module. The radio frequency identification card reader is characterized in that the radio frequency identification card reader also comprises a radio frequency module, and a transmit-receive module connected with the control unit and the signal return module; the radio frequency module is used for outputting an amplified and modulate radio frequency signal; the signal return module is used for returning data received by the transmit-receive module to the radio frequency module; and the transmit-receive module is used for receiving the radio frequency signal from the radio frequency module, then alternatively outputting the radio frequency signal regularly to a radio frequency identification card, and receiving a feedback signal sent by the radio frequency identification card, wherein the feedback signal carries information of the radio frequency identification card. According to the radio frequency identification card reader, functions of the radio frequency identification card reader are expanded, and card reading validity of the radio frequency identification card reader is improved.
Description
Technical field
The utility model relates to card reader field, particularly a kind of radio frequency identification card reader.
Background technology
Radio-frequency (RF) identification (Radio Frequency Identification, RFID) claim again electronic tag, RFID technology is to start a kind of automatic identification technology of rising the nineties in 20th century, is one and utilizes radiofrequency signal to pass through Space Coupling (alternating magnetic field or electromagnetic field) to realize contactless information transmission and pass through transmitted information the technology that reaches identifying purpose.
At present, RFID technology has been widely applied to all trades and professions such as logistics, parking lot, the management of product line, in the application of RFID technology, and the reasons such as the radiofrequency signal of ultrahigh frequency is easily affected by the external environment, interference, its Card Reader performance is subject to larger restriction.Prior art is carried out the principle that merit is divided, the method for radiofrequency signal being carried out to the distribution of constant power multichannel, and the method shortcoming is that radiofrequency signal branch is more, signal power loss is larger, thereby causes Card Reader hydraulic performance decline, causes skip card problem.
Utility model content
The utility model embodiment provides a kind of radio frequency identification card reader, to realize the Function Extension of radio frequency identification card reader, improves the Card Reader validity of card reader.
The utility model embodiment provides a kind of radio frequency identification card reader, the radio-frequency module that comprises control module, be connected with described control module and the signal return module being connected with described radio-frequency module, described radio frequency identification card reader also comprises the transceiver module being connected with described radio-frequency module, described control module and described signal return module;
Described control module carries out open and close control for outputs level signals to transceiver module, and obtains radio-frequency (RF) identification card information;
Described radio-frequency module is for exporting the modulated radiofrequency signal of amplification;
Described signal return module returns to radio-frequency module for the data that transceiver module is received;
Described transceiver module is alternately exported described radiofrequency signal for timesharing from described radio-frequency module received RF signal, by described emission of radio frequency signals to radio-frequency identification card, and receiving the feedback signal that described radio-frequency identification card sends, described feedback signal is carried radio-frequency (RF) identification card information.
The beneficial effect that the technical scheme that the utility model provides is brought is:
From above-mentioned the utility model embodiment, due to by radiofrequency signal is carried out to time-division control, realize multiple signals and replace card-reading function, and then complete the Multidirectional sweeping Card Reader of Card Reader signal, therefore, improve the Card Reader validity of card reader, solved skip card problem.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the theory diagram of a kind of radio frequency identification card reader of the utility model;
Fig. 2 is the structural representation of a kind of radio frequency identification card reader of the utility model;
In figure:
01 control module, 02 radio-frequency module, 03 transceiver module, 04 signal return module, 05 combiner, 021 radio-frequency (RF) identification radio frequency unit, 022 amplifying circuit, 031 program-controlled radio-frequency switch, 032i coupled circuit, 033i antenna.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
The theory diagram of a kind of radio frequency identification card reader of the utility model, referring to Fig. 1, radio frequency identification card reader comprises control module 01, the radio-frequency module 02 being connected with described control module 01 and the signal return module 04 being connected with described radio-frequency module 02, and described radio frequency identification card reader also comprises the transceiver module 03 being connected with described radio-frequency module 02, described control module 01 and described signal return module 04; Described control module 01 carries out open and close control for outputs level signals to transceiver module 03, and obtains radio-frequency (RF) identification card information, then uploads host computer by various interface; Described radio-frequency module 02 is for exporting the modulated radiofrequency signal of amplification; Described signal return module 04 returns to radio-frequency module 02 for the data that transceiver module 03 is received; Described transceiver module 03 is alternately exported described radiofrequency signal for timesharing from described radio-frequency module 02 received RF signal, by described emission of radio frequency signals to radio-frequency identification card, and receiving the feedback signal that described radio-frequency identification card sends, described feedback signal is carried radio-frequency (RF) identification card information.
Referring to Fig. 2, described transceiver module 03 comprises program-controlled radio-frequency switch 031, at least two coupled circuit 032i that are connected with described program-controlled radio-frequency switch 031 and at least two antenna 033i that are connected with described at least two coupled circuit 032i respectively; Described program-controlled radio-frequency switch 031 is alternately exported described radiofrequency signal for timesharing from described radio-frequency module 02 received RF signal; Described coupled circuit 032i is used for making described program-controlled radio-frequency switch 031 and described antenna 033i to closely cooperate transmitting radio frequency signal to described antenna 033i; Described antenna 033i is used for extremely described radio-frequency identification card of described emission of radio frequency signals, and receives the feedback signal that described radio-frequency identification card sends.
Described radio-frequency module 02 comprises radio-frequency (RF) identification radio frequency unit 021 and the amplifying circuit 022 being connected with described radio-frequency (RF) identification radio frequency unit 021; Described radio-frequency (RF) identification radio frequency unit 021 is for exporting modulated radiofrequency signal to described amplifying circuit 022; Described amplifying circuit 022 is for amplifying described modulated radiofrequency signal.
Described control module 01 is micro-control unit MCU.
In concrete enforcement, described transceiver module 03 can comprise program-controlled radio-frequency switch 031, three coupled circuit 032i that are connected with described program-controlled radio-frequency switch 031 and three antenna 033i that are connected with described three coupled circuit 032i respectively.
Described radio frequency identification card reader also comprises the combiner 05 being connected with described signal return module 04 and transceiver module 03; Described combiner 05, transfers to described signal return module 04 for described feedback signal is carried out after data selection processing.
Radio frequency identification card reader use and the course of work that the utility model provides are as follows:
Step 1: radio-frequency (RF) identification radio frequency unit 021 is exported modulated radiofrequency signal, delivers to program-controlled radio-frequency switch 031 via amplifying circuit 022.
Step 2: program-controlled radio-frequency switch 031 is carried out to open and close control by control module 01 outputs level signals, radiofrequency signal is alternately exported in timesharing can carry out channel increase and decrease processing according to actual conditions to each coupled circuit 032i(coupled circuit), through each coupled circuit 032i, radiofrequency signal is sent to each corresponding antenna 033i.
Step 3: each antenna 033i and radio-frequency identification card carry out wireless signal communication, the radio-frequency (RF) identification card information of acceptance is sent to combiner 05 via each coupled circuit 032i and carries out data selection processing.
Step 4: select data message after treatment to be sent to radio-frequency (RF) identification radio frequency unit 021 through signal return module 04 and carry out data demodulates, information processing.
Step 5: control module 01 obtains radio-frequency (RF) identification radio frequency unit 021 and processes obtained radio-frequency (RF) identification card information, then uploads host computer by various interface.
The radio frequency identification card reader that the utility model provides carries out time-division control by program-controlled radio-frequency (RF) switch to radiofrequency signal, realize multiple signals and replace card-reading function, and then complete the Multidirectional sweeping Card Reader of Card Reader signal, therefore, improve the Card Reader validity of card reader, solved skip card problem.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can carry out the hardware that instruction is relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be ROM (read-only memory), disk or CD etc.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a radio frequency identification card reader, the radio-frequency module that comprises control module, be connected with described control module and the signal return module being connected with described radio-frequency module, it is characterized in that, described radio frequency identification card reader also comprises the transceiver module being connected with described radio-frequency module, described control module and described signal return module;
Described control module carries out open and close control for outputs level signals to transceiver module, and obtains radio-frequency (RF) identification card information;
Described radio-frequency module is for exporting the modulated radiofrequency signal of amplification;
Described signal return module returns to radio-frequency module for the data that transceiver module is received;
Described transceiver module is alternately exported described radiofrequency signal for timesharing from described radio-frequency module received RF signal, by described emission of radio frequency signals to radio-frequency identification card, and receiving the feedback signal that described radio-frequency identification card sends, described feedback signal is carried radio-frequency (RF) identification card information.
2. radio frequency identification card reader according to claim 1, it is characterized in that, described transceiver module comprises program-controlled radio-frequency switch, at least two coupled circuits that are connected with described program-controlled radio-frequency switch and at least two antennas that are connected with described at least two coupled circuits respectively;
Described program-controlled radio-frequency switch is alternately exported described radiofrequency signal for timesharing from described radio-frequency module received RF signal;
Described coupled circuit is used for making described program-controlled radio-frequency switch and described antenna to closely cooperate transmitting radio frequency signal to described antenna;
Described antenna is used for extremely described radio-frequency identification card of described emission of radio frequency signals, and receives the feedback signal that described radio-frequency identification card sends.
3. radio frequency identification card reader according to claim 1, is characterized in that, described radio-frequency module comprises radio-frequency (RF) identification radio frequency unit and the amplifying circuit being connected with described radio-frequency (RF) identification radio frequency unit;
Described radio-frequency (RF) identification radio frequency unit is used for exporting modulated radiofrequency signal to described amplifying circuit;
Described amplifying circuit is used for amplifying described modulated radiofrequency signal.
4. radio frequency identification card reader according to claim 1, is characterized in that, described control module is micro-control unit MCU.
5. radio frequency identification card reader according to claim 2, is characterized in that, described transceiver module comprises program-controlled radio-frequency switch, three coupled circuits that are connected with described program-controlled radio-frequency switch and three antennas that are connected with described three coupled circuits respectively.
6. according to the radio frequency identification card reader described in claim 1 to 5 any one, it is characterized in that, described radio frequency identification card reader also comprises the combiner being connected with described signal return module and transceiver module;
Described combiner, transfers to described signal return module for described feedback signal is carried out after data selection processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884820.2U CN203673492U (en) | 2013-12-30 | 2013-12-30 | Radio frequency identification card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884820.2U CN203673492U (en) | 2013-12-30 | 2013-12-30 | Radio frequency identification card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673492U true CN203673492U (en) | 2014-06-25 |
Family
ID=50969765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320884820.2U Expired - Fee Related CN203673492U (en) | 2013-12-30 | 2013-12-30 | Radio frequency identification card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203673492U (en) |
-
2013
- 2013-12-30 CN CN201320884820.2U patent/CN203673492U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20201230 |