CN203224881U - High-frequency RFID reader used for mobile phone near field payment - Google Patents
High-frequency RFID reader used for mobile phone near field payment Download PDFInfo
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- CN203224881U CN203224881U CN 201320062673 CN201320062673U CN203224881U CN 203224881 U CN203224881 U CN 203224881U CN 201320062673 CN201320062673 CN 201320062673 CN 201320062673 U CN201320062673 U CN 201320062673U CN 203224881 U CN203224881 U CN 203224881U
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Abstract
The utility model discloses a high-frequency RFID reader used for mobile phone near field payment. The high-frequency RFID reader used for mobile phone near field payment comprises a display circuit, a clock circuit, an ARM controller, a coding-decoding circuit, a transmitting circuit, a receiving circuit and an antenna, wherein the data port of the ARM controller is in connection with the data port of a communication circuit and the data port of the coding-decoding circuit, and the data port of the coding-decoding circuit is in connection with the output terminal of the transmitting circuit and the input terminal of the receiving circuit. The ARM controller is used not only to reduce chip design complexity and production cost, but also to allow the high-frequency RFID reader to achieve smaller size and better performance; the optimized transmitting circuit and receiving circuit communication is used to allow the RFID reader to achieve remote operation, rapid communication speed and simpler circuits.
Description
Technical field
The utility model relates to a kind of RFID reader, particularly relates to a kind of high-frequency RF ID reader for the near field payment.
Background technology
The RFID technology is a kind of non-contacting automatic identification technology, carries out the noncontact bidirectional data communication by the mode of less radio-frequency, and related data is identified and obtained to target.Rfid system mainly is made up of electronic tag, read write line, antenna 3 parts usually.Read write line is operated electronic tag, and the electronic labeling information that obtains is fed back to PC.REID is widely used in paying for the mobile phone near field with its special advantages gradually.Press the working frequency range difference, rfid system can be divided into several classes such as low frequency, high frequency, ultrahigh frequency and microwave.At present, most of rfid systems are low frequency and radio frequency system, but that the rfid system of ultrahigh frequency frequency range has an operating distance is far away, and advantage such as communication speed is fast, and cost is low, and size is little is more suitable for the application in following logistics, supply chain field.Although at present, the development of RFID super high frequency technique is comparative maturity, and some standards have also been arranged, the price of label also descends to some extent; But the RFID ultrahigh frequency reader-writer becomes bigger, more complicated and more expensive trend, and its consumed energy will be more, make element and reach hundreds of more than.
Summary of the invention
The purpose of this utility model be provide in order to address the above problem a kind of simple in structure, volume is little and reliability is high is used for the high-frequency RF ID reader of mobile phone near field payment.
The utility model is achieved through the following technical solutions:
A kind of high-frequency RF ID reader for the near field payment, comprise display circuit, clock circuit, ARM controller, coding-decoding circuit, radiating circuit, receiving circuit and antenna, described ARM controller divides other FPDP to be connected with the FPDP of described telecommunication circuit and the FPDP of described coding-decoding circuit, and the FPDP of described coding-decoding circuit is connected with the input end of the output terminal of described radiating circuit and described receiving circuit.
Further, described receiving circuit comprises first wave filter, second wave filter, the 3rd wave filter, amplifier, power splitter, phase-shift circuit, first demodulator, second demodulator, differential amplifier, comparer and shaping circuit, the signal output part of described first wave filter is connected with the signal input part of described amplifier, the signal output part of described amplifier is connected with the signal input part of described power splitter, the signal output part of described power splitter is connected with the signal input part of described phase-shift circuit and the signal input part of described second demodulator respectively, the signal output part of described second demodulator is connected with the signal input part of described the 3rd wave filter, the signal output part of described phase-shift circuit is connected with the signal input part of described first demodulator, the signal output part of described first demodulator is connected with the signal output part of described second wave filter, the signal output part of described second wave filter is connected with the signal input part of described differential amplifier with the signal output part of described the 3rd wave filter, the signal output part of described differential amplifier is connected with the signal input part of described comparer, and the signal output part of described comparer is connected with the signal input part of described shaping circuit.
Further, described radiating circuit comprises frequency synthesizer, frequency mixer, bandpass filter, power amplifier and circulator, the signal output part of described frequency synthesizer is connected with the signal input part of described frequency mixer, the signal output part of described frequency mixer is connected with the signal input part of described bandpass filter, the signal output part of described bandwidth-limited circuit is connected with the signal input part of described power amplifier, and the signal output part of described power amplifier is connected with the signal input part of described circulator.
The beneficial effects of the utility model are:
By adopting the ARM controller both can reduce complicacy and production cost in the chip design, can make the littler performance of volume of high-frequency RF ID reader better again, by adopting radiating circuit and the receiving circuit communication optimized to make that the operating distance of RFID reader is far away, communication speed is fast, and circuit is simpler.
Description of drawings
Fig. 1 is the structured flowchart that the utility model is used for the high-frequency RF ID reader of mobile phone near field payment;
Fig. 2 is the structured flowchart of receiving circuit in the utility model;
Fig. 3 is the structured flowchart of radiating circuit in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments:
As shown in Figure 1, this a kind of high-frequency RF ID reader for the near field payment, comprise display circuit, clock circuit, ARM controller, coding-decoding circuit, radiating circuit, receiving circuit and antenna, described ARM controller divides other FPDP to be connected with the FPDP of described telecommunication circuit and the FPDP of described coding-decoding circuit, and the FPDP of described coding-decoding circuit is connected with the input end of the output terminal of described radiating circuit and described receiving circuit.
As shown in Figure 2, described receiving circuit comprises first wave filter, second wave filter, the 3rd wave filter, amplifier, power splitter, phase-shift circuit, first demodulator, second demodulator, differential amplifier, comparer and shaping circuit, the signal output part of described first wave filter is connected with the signal input part of described amplifier, the signal output part of described amplifier is connected with the signal input part of described power splitter, the signal output part of described power splitter is connected with the signal input part of described phase-shift circuit and the signal input part of described second demodulator respectively, the signal output part of described second demodulator is connected with the signal input part of described the 3rd wave filter, the signal output part of described phase-shift circuit is connected with the signal input part of described first demodulator, the signal output part of described first demodulator is connected with the signal output part of described second wave filter, the signal output part of described second wave filter is connected with the signal input part of described differential amplifier with the signal output part of described the 3rd wave filter, the signal output part of described differential amplifier is connected with the signal input part of described comparer, and the signal output part of described comparer is connected with the signal input part of described shaping circuit.
As shown in Figure 3, radiating circuit comprises frequency synthesizer, frequency mixer, bandpass filter, power amplifier and circulator, the signal output part of described frequency synthesizer is connected with the signal input part of described frequency mixer, the signal output part of described frequency mixer is connected with the signal input part of described bandpass filter, the signal output part of described bandwidth-limited circuit is connected with the signal input part of described power amplifier, and the signal output part of described power amplifier is connected with the signal input part of described circulator.
Claims (3)
1. one kind is used for the high-frequency RF ID reader that pay in the mobile phone near field, it is characterized in that: comprise display circuit, clock circuit, ARM controller, coding-decoding circuit, radiating circuit, receiving circuit and antenna, described ARM controller divides other FPDP to be connected with the FPDP of telecommunication circuit and the FPDP of described coding-decoding circuit, and the FPDP of described coding-decoding circuit is connected with the input end of the output terminal of described radiating circuit and described receiving circuit.
2. the high-frequency RF ID reader for mobile phone near field payment according to claim 1, it is characterized in that: described receiving circuit comprises first wave filter, second wave filter, the 3rd wave filter, amplifier, power splitter, phase-shift circuit, first demodulator, second demodulator, differential amplifier, comparer and shaping circuit, the signal output part of described first wave filter is connected with the signal input part of described amplifier, the signal output part of described amplifier is connected with the signal input part of described power splitter, the signal output part of described power splitter is connected with the signal input part of described phase-shift circuit and the signal input part of described second demodulator respectively, the signal output part of described second demodulator is connected with the signal input part of described the 3rd wave filter, the signal output part of described phase-shift circuit is connected with the signal input part of described first demodulator, the signal output part of described first demodulator is connected with the signal output part of described second wave filter, the signal output part of described second wave filter is connected with the signal input part of described differential amplifier with the signal output part of described the 3rd wave filter, the signal output part of described differential amplifier is connected with the signal input part of described comparer, and the signal output part of described comparer is connected with the signal input part of described shaping circuit.
3. the high-frequency RF ID reader for mobile phone near field payment according to claim 1, it is characterized in that: described radiating circuit comprises frequency synthesizer, frequency mixer, bandpass filter, power amplifier and circulator, the signal output part of described frequency synthesizer is connected with the signal input part of described frequency mixer, the signal output part of described frequency mixer is connected with the signal input part of described bandpass filter, the signal output part of described bandwidth-limited circuit is connected with the signal input part of described power amplifier, and the signal output part of described power amplifier is connected with the signal input part of described circulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320062673 CN203224881U (en) | 2013-02-04 | 2013-02-04 | High-frequency RFID reader used for mobile phone near field payment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320062673 CN203224881U (en) | 2013-02-04 | 2013-02-04 | High-frequency RFID reader used for mobile phone near field payment |
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| CN203224881U true CN203224881U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320062673 Expired - Fee Related CN203224881U (en) | 2013-02-04 | 2013-02-04 | High-frequency RFID reader used for mobile phone near field payment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166826A (en) * | 2014-08-15 | 2014-11-26 | 广州中大微电子有限公司 | Receiving demodulator circuit for RFID card reader and method |
| CN108020344A (en) * | 2017-07-27 | 2018-05-11 | 南京航空航天大学 | The SAW ID-tag temp measuring system and method that time-division, time-division are combined with code division, time-division with frequency division, time-division with code division with frequency division |
-
2013
- 2013-02-04 CN CN 201320062673 patent/CN203224881U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166826A (en) * | 2014-08-15 | 2014-11-26 | 广州中大微电子有限公司 | Receiving demodulator circuit for RFID card reader and method |
| CN108020344A (en) * | 2017-07-27 | 2018-05-11 | 南京航空航天大学 | The SAW ID-tag temp measuring system and method that time-division, time-division are combined with code division, time-division with frequency division, time-division with code division with frequency division |
| CN108020344B (en) * | 2017-07-27 | 2020-03-17 | 南京航空航天大学 | Surface acoustic wave label temperature measurement system and method combining time division, time division and frequency division, time division and code division, and time division and code division |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140204 |