CN106446736A - Method for accessing register in RFID reader - Google Patents
Method for accessing register in RFID reader Download PDFInfo
- Publication number
- CN106446736A CN106446736A CN201610782204.4A CN201610782204A CN106446736A CN 106446736 A CN106446736 A CN 106446736A CN 201610782204 A CN201610782204 A CN 201610782204A CN 106446736 A CN106446736 A CN 106446736A
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- Prior art keywords
- rfid reader
- electronic tag
- depositor
- signal
- register
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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- Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention provides a method for accessing a register in an RFID reader. The RFID reader comprises an antenna, a system frequency generator, a phase locking loop, a modulation circuit, a microprocessor, a memory and a demodulation circuit. When an electronic tag is put in an induction range of the antenna, the RFID reader actively detects the existence of the electronic tag and reads information in the electronic tag to an RFID buffer through a receiving circuit by a front-end analog demodulation circuit, the RFID reader communicates with a microcontroller after internal operation processing of the information, and finally the microcontroller processes the information; an address of the register in the RFID reader is hexadecimal, and the register with different addresses have different functions; and the RFID reader can be connected with a computer network, and the address of the register is modified through the computer network to access different functions of the register. The method has the beneficial effects that the RFID reader is connected with the computer network, and the address of the register is modified through the computer network to access different functions of the register.
Description
Technical field
The present invention relates to electronic communication equipment technical field, especially relate to a kind of access of depositor in RFID reader
Method.
Background technology
With the continuous development of communication technology, RFID reader is also called read write line, is to read and write in electronic tag
Stored equipment RFID reader carries out radio communication by antenna and electronic tag, to realize the reading to electronic tag data
Go out and write.Depositor in RFID reader has several functions, how quickly to access difference in functionality and is particularly important.By
This is visible, how to work out a kind of access method of depositor in RFID reader, quickly can access depositor and realize posting
The conversion of difference in functionality in storage, is current those skilled in the art's problem demanding prompt solution.
Content of the invention
In order to solve the above problems, the invention provides in a kind of RFID reader depositor access method.
The access method of depositor in a kind of RFID reader of the present invention, described RFID reader includes antenna, system frequency
Rate generator, phase place lock-bit loop, modulation circuit, microprocessor, memorizer and demodulator circuit, described antenna is used for sending wirelessly
Signal gives described electronic tag, and returns responding, by described electronic tag, the data receiver returned；Described system frequency produces
Device is used for the operating frequency of generation system, and described phase place lock-bit loop is used for producing the carrier signal needed for radio frequency, described modulation
Circuit is used for carrier wave and giving radio circuit and sending giving the signal loading of described electronic tag；Described microprocessor is used
Described electronic tag signal to be given to described modulation circuit in producing, decode the signal that described electronic tag can send simultaneously, and
The data back of gained to application program, if the system of encryption also must do encryption and decryption operation；Described memorizer is used for depositing
Storage user program data, described demodulator circuit is used for demodulating the data that described electronic tag is brought
When described electronic tag is put in the range of described antenna induction, described RFID reader actively detects described electricity
The presence of subtab, and by demodulator circuit described in front end analogue, the information in described electronic tag is read in by receiving circuit
To in RFID buffer, described information internal arithmetic carries out traffic operation with described microcontroller, finally by described micro- after processing
Controller is processed to described information.
Wherein, the register address in described RFID reader is hexadecimal, and the described depositor of different address has
Different functions；Described RFID reader provides multiple modes communicating with custom system, and described RFID reader can be with
Computer network is attached, and is able to access that described depositor by the address that described depositor changed by described computer network
Difference in functionality.
Further, described receiving circuit includes two-way receiving channel, described RFID reader meeting during receiving
The signal described in two-way receiving is compared, system can automatic selecting signal be demodulated compared with signal described in Qiang Na road.
Further, described information is led to described microcontroller by serial SPI interface or parallel interface mode
Letter operation.
Further, make if write operation is carried out to described electronic tag, described microcontroller passes through serial SPI or simultaneously
Line interface mode operates depositor in described RFID reader to realize the write operation to described electronic tag data.
In a kind of RFID reader of the present invention, the access method of depositor, compared with prior art has advantages below：
First, pass through computer network in the access method of depositor in this RFID reader in described RFID reader
The address of depositor be modified and make depositor in described RFID reader access more convenient so that described depositor
Function is capable of rapid translating, and the value for example passing through to change the chip status depositor in described RFID reader can make to post
Storage is separately operable in standby mode and activation pattern, and verifies modification result by card seeking operation.
Second, in this RFID reader, described in the access method of depositor, receiving circuit includes two-way receiving channel,
During receiving, described RFID reader can be compared to the signal described in two-way receiving, and system meeting automatic selecting signal is relatively
Signal described in Qiang Na road is demodulated.This design can be substantially reduced blind area present in described antenna, improves described signal
The success rate being received.
Brief description
Fig. 1 is the structured flowchart of RFID reader in the present invention；
Fig. 2 is structured flowchart in application process for the RFID reader in the present invention.
Fig. 3 is TRF7960 typical application circuit figure in the present invention.
Specific embodiment
In order to be better understood from the present invention, with reference to specific embodiments and the drawings, the present invention is further retouched
State.
As Figure 1-3, in a kind of RFID reader depositor access method, wherein, basic group of RFID reader
Become to include three parts such as radio-frequency module, control process module and antenna, wherein control process module includes base band signal process mould
Block and intelligent object.It is microprocessor that described baseband signal processing module includes central processing unit, and described intelligent object includes PC
(Personal Computer) machine and user's main control module.
After refining further, described RFID reader includes antenna, system frequency generator, phase place lock-bit loop, tune
Circuit processed, microprocessor, memorizer and demodulator circuit, described antenna is used for transmitting wireless signals to described electronic tag, and handle
Returned by the data receiver that the response of described electronic tag is returned；Described system frequency generator is used for the work frequency of generation system
Rate, described phase place lock-bit loop is used for producing the carrier signal needed for radio frequency, and described modulation circuit is used for handle and will give described electricity
The signal loading of subtab to carrier wave and is given radio circuit and is sent；Described microprocessor will give described electronics mark for generation
Sign signal to described modulation circuit, decode the signal that described electronic tag can send simultaneously, and give application the data back of gained
Program, if the system of encryption also must do encryption and decryption operation；Described memorizer is used for storing user program data, described solution
Circuit is adjusted to be used for demodulating the data that described electronic tag is brought.
When described electronic tag is put in the range of described antenna induction, described RFID reader actively detects described electricity
The presence of subtab, and by demodulator circuit described in front end analogue, the information in described electronic tag is read in by receiving circuit
To in RFID buffer, described information internal arithmetic carries out traffic operation with described microcontroller, finally by described micro- after processing
Controller is processed to described information.
Wherein, the register address in described RFID reader is hexadecimal, and the described depositor of different address has
Different functions；Described RFID reader provides multiple modes communicating with custom system, and described RFID reader can be with
Computer network is attached, and is able to access that described depositor by the address that described depositor changed by described computer network
Difference in functionality.
There is RX1_AM and RX2_PM two-way receiving channel in receiving circuit described in TRF7960 model reader, receiving
During described RFID reader can to receive signal described in two-way be compared, described information pass through serial SPI interface or
Person's parallel interface mode and described microcontroller carry out traffic operation.System can automatic selecting signal relatively signal described in Qiang Na road
It is demodulated.This design can be substantially reduced blind area present in described antenna, improves the success rate that described signal is received.
If carrying out write operation to described electronic tag makes, described microcontroller passes through serial SPI or parallel interface side
Formula operates the depositor in described RFID reader realizing the write operation to described electronic tag data.
The introduction of TRF7960 depositor：
Table 1 register functions describe table
Register bit bit function：
(1) chip status control register (0x00)
Table 2 chip status control register
(2) ISO protocol integrated test system depositor (0x01)
Table 3 ISO protocol integrated test system depositor
Table 4 RFID mode selects
(3) manipulator and system time depositor (0x0B)
Table 5 manipulator and system time depositor
“C:... RFID experiment 13.56MHz HF RFID experiment one " in project file, all depositors of TRF7960
Address provides macrodefinition by header file " trf7960.h ", as follows：
TRF7960 depositor is 8bits depositor, and the data structure of its visit order is unsigned char type,
In main () function, state the unsigned char type data of the command of 10 elements, for storage register ground
Location and the value to content of registers modification, in the following example：
Example：Modification ISO protocol integrated test system depositor, (former content of registers is to select ISO14443A low bit rate agreement
ISO15693, single carrier, 1/4).
Former content of registers：(being worth for 0x02)
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Modification late register content：(being worth for 0x08)
| 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Modification sample code (part)：
Register access function：“C:... RFID experiment 13.56MHz HF RFID experiment one " in project file, head
The statement of register access function is given, the realization to function is placed on source file " trf7960.c " in file " trf7960.h "
In.
void WriteSingle(unsigned char*pbuf,unsigned char length)；// write single posting
Storage or multiple register command of special address, pbuf is the data that will write, and length is data length.
void WriteCont(unsigned char*pbuf,unsigned char lenght)；// continuously write and deposit
Device or multiple register command of special address, pbuf is the data that will write, and length is data length.
void ReadSingle(unsigned char*pbuf,unsigned char length)；// read single depositing
Device, pbuf is the data reading, and length is data length.
void ReadCont(unsigned char*pbuf,unsigned char lenght)；// continuous read register
Or multiple depositors of special address, pbuf is the data reading, and length is data length.
Beneficial effects of the present invention are：By computer network, the address of depositor in described RFID reader is carried out more
Change and make depositor in described RFID reader access more convenient so that the function of described depositor is capable of quick turning
Change, the value for example passing through to change the chip status depositor in described RFID reader can make depositor be separately operable standby
Pattern and activation pattern, and modification result is verified by card seeking operation.
Above embodiments of the invention are described in detail, but described content have been only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.All impartial changes made according to the scope of the invention and improvement etc., all should
Still belong within this patent covering scope.
Claims (4)
1. in a kind of RFID reader depositor access method it is characterised in that：Described RFID reader includes antenna, system
Frequency generator, phase place lock-bit loop, modulation circuit, microprocessor, memorizer and demodulator circuit, described antenna is used for sending no
Line signal gives described electronic tag, and returns responding, by described electronic tag, the data receiver returned；Described system frequency is produced
Raw device is used for the operating frequency of generation system, and described phase place lock-bit loop is used for producing the carrier signal needed for radio frequency, described tune
Circuit processed is used for carrier wave and giving radio circuit and sending giving the signal loading of described electronic tag；Described microprocessor
Described electronic tag signal to be given to described modulation circuit for producing, decode the signal that described electronic tag can send simultaneously,
And the data back of gained to application program, if the system of encryption also must do encryption and decryption operation；Described memorizer is used for
Storage user program data, described demodulator circuit is used for demodulating the data that described electronic tag is brought；
When described electronic tag is put in the range of described antenna induction, described RFID reader actively detects described electronics mark
The presence signed, and by demodulator circuit described in front end analogue, the information in described electronic tag is read into by receiving circuit
In RFID buffer, described information internal arithmetic carries out traffic operation with described microcontroller, finally by described micro-control after processing
Device processed is processed to described information；
Wherein, the register address in described RFID reader is hexadecimal, and the described depositor of different address has difference
Function；Described RFID reader provides multiple modes communicating with custom system, and described RFID reader can be with calculating
Machine network is attached, and is able to access that the difference of described depositor by the address that described depositor changed by described computer network
Function.
2. in RFID reader according to claim 1 depositor access method it is characterised in that：Described receiving circuit
Include two-way receiving channel, described RFID reader can be compared to the signal described in two-way receiving during receiving,
System can automatic selecting signal be demodulated compared with signal described in Qiang Na road.
3. in RFID reader according to claim 1 depositor access method it is characterised in that：Described information is passed through
Serial SPI interface or parallel interface mode carry out traffic operation with described microcontroller.
4. in the RFID reader according to any one in claim 1-3 depositor access method it is characterised in that：
If carrying out write operation to described electronic tag makes, described microcontroller operates institute by serial SPI or parallel interface mode
State depositor in RFID reader to realize the write operation to described electronic tag data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782204.4A CN106446736A (en) | 2016-08-31 | 2016-08-31 | Method for accessing register in RFID reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782204.4A CN106446736A (en) | 2016-08-31 | 2016-08-31 | Method for accessing register in RFID reader |
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| Publication Number | Publication Date |
|---|---|
| CN106446736A true CN106446736A (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610782204.4A Pending CN106446736A (en) | 2016-08-31 | 2016-08-31 | Method for accessing register in RFID reader |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220301383A1 (en) * | 2019-11-29 | 2022-09-22 | Banks And Acquirers International Holding | Method of communication between two sub-systems constituting a modular payment terminal. |
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| US20070197167A1 (en) * | 2006-02-17 | 2007-08-23 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Spatial diversity receiving device and input channel switching method |
| CN101079096A (en) * | 2007-06-13 | 2007-11-28 | 华南理工大学 | Multiple tag dynamic bit arbitration anti-collision method for RFID system |
| CN101699520A (en) * | 2009-09-23 | 2010-04-28 | 北京子天汇科信息技术有限公司 | Novel electronic anti-counterfeiting system used for electric meter |
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| CN102314401A (en) * | 2010-07-09 | 2012-01-11 | 瑞创国际公司 | Be used for the low-power of RFID transponder, few pin-count interface |
| CN103077412A (en) * | 2012-12-29 | 2013-05-01 | 深圳市远望谷信息技术股份有限公司 | Electronic tag echo signal receiving method of RFID (Radio Frequency Identification) reader-writer and device |
| CN103077365A (en) * | 2012-12-28 | 2013-05-01 | 广州中大微电子有限公司 | RFID (radio frequency identification) reader compatible with Type A protocol and Type B protocol |
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2016
- 2016-08-31 CN CN201610782204.4A patent/CN106446736A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050004702A1 (en) * | 2003-07-02 | 2005-01-06 | Mcdonald Glenn E. | System and method for tracking shipment of items utilizing RFID-tags |
| US20070197167A1 (en) * | 2006-02-17 | 2007-08-23 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Spatial diversity receiving device and input channel switching method |
| CN101079096A (en) * | 2007-06-13 | 2007-11-28 | 华南理工大学 | Multiple tag dynamic bit arbitration anti-collision method for RFID system |
| CN101699520A (en) * | 2009-09-23 | 2010-04-28 | 北京子天汇科信息技术有限公司 | Novel electronic anti-counterfeiting system used for electric meter |
| CN102073835A (en) * | 2009-11-23 | 2011-05-25 | 天津中兴软件有限责任公司 | Access method of RFID (Radio Frequency Identification Device) reader and interface driving equipment thereof |
| CN102314401A (en) * | 2010-07-09 | 2012-01-11 | 瑞创国际公司 | Be used for the low-power of RFID transponder, few pin-count interface |
| CN103077365A (en) * | 2012-12-28 | 2013-05-01 | 广州中大微电子有限公司 | RFID (radio frequency identification) reader compatible with Type A protocol and Type B protocol |
| CN103077412A (en) * | 2012-12-29 | 2013-05-01 | 深圳市远望谷信息技术股份有限公司 | Electronic tag echo signal receiving method of RFID (Radio Frequency Identification) reader-writer and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220301383A1 (en) * | 2019-11-29 | 2022-09-22 | Banks And Acquirers International Holding | Method of communication between two sub-systems constituting a modular payment terminal. |
| US11861991B2 (en) * | 2019-11-29 | 2024-01-02 | Banks And Acquirers International Holding | Method of communication between two sub-systems constituting a modular payment terminal |
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Application publication date: 20170222 |