CN204667412U - Low frequency closely connects the electronic bin RFID reader of contactless output - Google Patents
Low frequency closely connects the electronic bin RFID reader of contactless output Download PDFInfo
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- CN204667412U CN204667412U CN201520384793.1U CN201520384793U CN204667412U CN 204667412 U CN204667412 U CN 204667412U CN 201520384793 U CN201520384793 U CN 201520384793U CN 204667412 U CN204667412 U CN 204667412U
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- rfid reader
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- low frequency
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Abstract
A kind of low frequency of the utility model closely connects the electronic bin RFID reader of contactless output, comprise radio frequency interface unit and logic control element, radio frequency interface unit comprises the receiver for being received radio-frequency (RF) signal by antenna element, for the transmitter of transmitter logic control module signal, logic control element comprises processor, it is characterized in that: comprise and described antenna element, the impedance matching unit of the corresponding setting of VSSA signal in processor, described impedance matching unit performs impedance matching when being received radio-frequency (RF) signal by antenna element, described impedance matching unit performs impedance matching when receiving VSSA signal in processor.By the setting of the utility model device impedance matching, the signal intensity of electronic bin RFID reader is strengthened, transmission range increases, and the stability of obtaining information have also been obtained raising, the probability reducing information dropout or misread.
Description
Technical field
The utility model relates to reader technology field, and a kind of low frequency closely connects the electronic bin RFID reader of contactless output specifically.
Background technology
Smart Tag (electronic tag) is also known as radio-frequency (RF) tag, transponder, data carrier, and reader is also called readout device, scanner, read head, communicator, reader.The contactless of space being realized radiofrequency signal between electronic tag with reader by coupling element is coupled, and in coupling channel, according to sequential relationship, realizes transmission and the exchanges data of energy.
In recent years, Internet of Things industry has more and more hotter development trend in various places, then based on the electronic tag industry of industry also welcome the opportunities and challenges of a new round.Because electronic tag has not fragile, it is convenient to read, and volume is little, and reliability is high, and installation site is hidden, can save the advantages such as a large amount of manpower and materials simultaneously, and electronic tag application is more and more extensive.So become the object of the research of people for the ingredient reader that electronic labelling system is the most basic.
At present, conventional wireless radio frequency reader be a kind of can the automatic identification equipment of read electronic label, be a kind of contactless automatic identification technology, automatically identify destination object and obtain related data by radiofrequency signal, the work of identification need not Human disturbance.After label enters magnetic field, receive the radiofrequency signal that reader sends, the energy obtained by means of induction current sends out storage product information in the chips, and according to the otherness of application demand, the frequency band of wave frequency can be divided into low frequency, high frequency, ultrahigh frequency and microwave.
Existing reader uses field to differ greatly, and therefore used frequency range is different, and the signal attenuation that frequency is larger is serious, energy is transferred out by aerial coil electric coupling, magnetic field energy declines very fast, and information reading process is unstable, easily occurs information dropout phenomenon.
Utility model content
In view of the defect that above-mentioned prior art exists, the purpose of this utility model proposes the electronic bin RFID reader that a kind of low frequency closely connects contactless output, the reader especially designed for frequency 134.2KHz electronic tag.The purpose of this utility model will be achieved by the following technical programs:
A kind of low frequency closely connects the electronic bin RFID reader of contactless output, comprise radio frequency interface unit and logic control element, radio frequency interface unit comprises the receiver for being received radio-frequency (RF) signal by antenna element, for the transmitter of transmitter logic control module signal, logic control element comprises processor, comprise and described antenna element, the impedance matching unit of the corresponding setting of VSSA signal in processor, described impedance matching unit performs impedance matching when being received radio-frequency (RF) signal by antenna element, described impedance matching unit performs impedance matching when receiving VSSA signal in processor.
Further, described antenna element comprises ANT1 and ANT2 to the utility model; One end of the output terminal contact resistance R7 of described ANT1, the other end of resistance R7 divides three roads to be connected to resistance R5, electric capacity C4 and electric capacity C5, and resistance R5 and electric capacity C4 is connected in parallel; One end of the output terminal contact resistance R8 of described ANT2, the other end of resistance R8 divides two-way to be connected to electric capacity C6 and electric capacity C7; The output terminal of described VSSA divides two-way to be connected to electric capacity C5 and electric capacity C6.
Further, described radio frequency interface unit also comprises the clock generator of accurate processing digital signal to the utility model.
Further, described radio frequency interface unit also comprises voltage regulator to the utility model.
Further, logic control element also comprises the storage unit be connected with processor to the utility model.
Further, described processor is MCU or PLC to the utility model.
The utility model further, also comprises the display unit for the Signal aspects will extracted from processor.
The beneficial effects of the utility model are mainly reflected in: by the setting of the utility model device impedance matching, the signal intensity of electronic bin RFID reader is strengthened, transmission range increases, and the stability of obtaining information have also been obtained raising, the probability reducing information dropout or misread.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that the utility model low frequency closely connects the contactless electronic bin RFID reader from exporting;
Fig. 2 is the circuit diagram that the utility model low frequency closely connects the impedance matching unit of the electronic bin RFID reader of contactless output.
Embodiment
The utility model discloses the electronic bin RFID reader that low frequency closely connects contactless output, is different from the remote reader of traditional RFID.Below in conjunction with the accompanying drawing in the utility model embodiment, carry out clear, complete description to the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, the utility model low frequency closely connects the electronic bin RFID reader of contactless output, comprise radio frequency interface unit and logic control element, radio frequency interface unit comprises for being received the receiver of radio-frequency (RF) signal, the transmitter for transmitter logic control module signal by antenna element, logic control element comprises processor, comprises the impedance matching unit with the corresponding setting of VSSA signal in antenna element, processor.Impedance matching unit of stating provided by the utility model performs impedance matching when being received radio-frequency (RF) signal by antenna element, and impedance matching unit performs impedance matching when receiving VSSA signal in processor.
As shown in Figure 2, above-mentioned antenna element comprises ANT1 and ANT2.One end of the output terminal contact resistance R7 of ANT1, the other end of resistance R7 divides three roads to be connected to resistance R5, electric capacity C4 and electric capacity C5, and resistance R5 and electric capacity C4 is connected in parallel.One end of the output terminal contact resistance R8 of ANT2, the other end of resistance R8 divides two-way to be connected to electric capacity C6 and electric capacity C7.The output terminal of VSSA divides two-way to be connected to electric capacity C5 and electric capacity C6.By the setting of this impedance matching unit, effectively make the signal intensity of electronic bin RFID reader strengthen, transmission range increases.
Particularly, radio frequency interface unit also comprises the clock generator of accurate processing digital signal, and the utility model electronic bin three-in-one Smart Tag reader device that the error avoiding digital signal to transmit causes cannot normal operation.In addition, radio frequency interface unit also comprises voltage regulator, is conducive to the utility model device and runs under voltage stabilizing state.Above-mentioned logic control element also comprises the storage unit be connected with processor, receives signal data for storing.MCU or PLC elected as by the processor that the utility model embodiment provides, by being shown on the display unit by the signal extracted from processor.
During the utility model specific works, electronic tag (Fig. 1 is not shown) after receiving request signal by the circuit working in one partial rectification tail DC power supply subtab, part energy signal launches back reader after being modulated by the data message preserved in electronic tag, the receiver of reader is received from electronic tag the microcontroller that the signal obtained is sent to logic control element by antenna carry out data processing by connecing, the data that microcontroller is handled well are sent to storage unit on the one hand, send out deaf to transmitter on the one hand, data are back to electronic bin main frame by receiver again.After the process of receiver Received signal strength and processor transmission processing, the process of signal is all through impedance matching unit.
Therefore, by the setting of the utility model device impedance matching, the signal intensity of electronic bin RFID reader is strengthened, transmission range increases, and the stability of obtaining information have also been obtained raising, the probability reducing information dropout or misread.The utility model still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection domain of the present utility model.
Claims (7)
1. a low frequency closely connects the electronic bin RFID reader of contactless output, comprise radio frequency interface unit and logic control element, radio frequency interface unit comprises the receiver for being received radio-frequency (RF) signal by antenna element, for the transmitter of transmitter logic control module signal, logic control element comprises processor, it is characterized in that: comprise and described antenna element, the impedance matching unit of the corresponding setting of VSSA signal in processor, described impedance matching unit performs impedance matching when being received radio-frequency (RF) signal by antenna element, described impedance matching unit performs impedance matching when receiving VSSA signal in processor.
2. low frequency according to claim 1 closely connects the electronic bin RFID reader of contactless output, it is characterized in that: described antenna element comprises ANT1 and ANT2;
One end of the output terminal contact resistance R7 of described ANT1, the other end of resistance R7 divides three roads to be connected to resistance R5, electric capacity C4 and electric capacity C5, and resistance R5 and electric capacity C4 is connected in parallel;
One end of the output terminal contact resistance R8 of described ANT2, the other end of resistance R8 divides two-way to be connected to electric capacity C6 and electric capacity C7;
The output terminal of described VSSA divides two-way to be connected to electric capacity C5 and electric capacity C6.
3. low frequency according to claim 1 closely connects the contactless electronic bin RFID reader from exporting, and it is characterized in that: described radio frequency interface unit also comprises the clock generator of accurate processing digital signal.
4. low frequency according to claim 3 closely connects the contactless electronic bin RFID reader from exporting, and it is characterized in that: described radio frequency interface unit also comprises voltage regulator.
5. low frequency according to claim 1 closely connects the contactless electronic bin RFID reader from exporting, and it is characterized in that: logic control element also comprises the storage unit be connected with processor.
6. low frequency according to claim 1 closely connects the contactless electronic bin RFID reader from exporting, and it is characterized in that: described processor is MCU or PLC.
7. low frequency according to claim 1 closely connects the electronic bin RFID reader of contactless output, it is characterized in that: also comprise the display unit of the signal for extracting from processor in display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384793.1U CN204667412U (en) | 2015-06-05 | 2015-06-05 | Low frequency closely connects the electronic bin RFID reader of contactless output |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384793.1U CN204667412U (en) | 2015-06-05 | 2015-06-05 | Low frequency closely connects the electronic bin RFID reader of contactless output |
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| Publication Number | Publication Date |
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| CN204667412U true CN204667412U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520384793.1U Expired - Fee Related CN204667412U (en) | 2015-06-05 | 2015-06-05 | Low frequency closely connects the electronic bin RFID reader of contactless output |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463862A (en) * | 2017-08-30 | 2017-12-12 | 合肥新文远信息技术有限公司 | A kind of contactless RFID reader |
-
2015
- 2015-06-05 CN CN201520384793.1U patent/CN204667412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463862A (en) * | 2017-08-30 | 2017-12-12 | 合肥新文远信息技术有限公司 | A kind of contactless RFID reader |
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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 |
Granted publication date: 20150923 Termination date: 20180605 |
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| CF01 | Termination of patent right due to non-payment of annual fee |