CN103516398B - A kind of frequency communication method, switching device and RF system - Google Patents
A kind of frequency communication method, switching device and RF system Download PDFInfo
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- CN103516398B CN103516398B CN201210204561.4A CN201210204561A CN103516398B CN 103516398 B CN103516398 B CN 103516398B CN 201210204561 A CN201210204561 A CN 201210204561A CN 103516398 B CN103516398 B CN 103516398B
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Abstract
The open frequency communication method of the present invention, switching device and RF system, this system includes different the first equipment of radio frequency data formats and the second equipment, and switching device；Switching device includes the first communication module for communicating according to the radio frequency data formats of the first equipment and the first equipment, for the second communication module communicated according to the radio frequency data formats of the second equipment and the second equipment；Switching device judges whether the second equipment needing to access；If existing, then enabling first communication module, otherwise forbidden energy first communication module or holding first communication module are in disabled state.The present invention is by above technical scheme so that same equipment, under conditions of the communication function not affecting the opposite equip. matched with its radio frequency data formats, adds the communication function of equipment unmatched with its radio frequency data formats.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of frequency communication method, switching device and radio-frequency communication
System.
Background technology
Along with the development of wireless communication technology, technology for radio frequency has extensively in wireless mobile communications field
, irreplaceable effect.Various non-contact cards are the most extensively applied, such as mass transit card, door
Prohibit card, attendance card and bank card etc..
Existing radio-frequency card use frequency by low frequency 125KHz to hyperfrequency 2.4GHz, according to difference
Application scenarios, optional different frequency, use different communication protocol and algorithm.
But, the most most widely used card reader often only has a kind of fixing radio frequency data formats,
As worked in 13.56MHz, based in TypeA, TypeB, Mifare, Desfire or Felica
Plant communications protocol.
Due to the restriction of the radio frequency data formats that card reader uses, to its supporting radio-frequency card also by corresponding limit
System, as necessarily operated in 13.56MHz, and uses the communication protocol identical with card reader and algorithm etc..As
What makes same card reader in the condition of the communication function not affecting the card matched with its radio frequency data formats
Under, increase the communication function with the unmatched card of its radio frequency data formats, be to be badly in need of to be solved asking at present
Topic.
Summary of the invention
The present invention provides a kind of means of communication and system, solves how to make same equipment to penetrate with it not affecting
Under conditions of the communication function of the opposite equip. that frequency matches according to form, increase with its radio frequency data formats not
The problem of the communication function of the equipment of coupling.
For solving above-mentioned technical problem, the present invention takes techniques below scheme.
A kind of frequency communication method, described frequency communication method is applied to RF communication system, and described radio frequency leads to
Communication system includes the first equipment, the second equipment and switching device；Switching device includes for according to the first equipment
Radio frequency data formats and the first communication module of the first equipment communication, for according to the radio frequency number of the second equipment
The second communication module communicated according to form and the second equipment, and at described first communication module and second
The control module of radio frequency data formats conversion is carried out before communication module；Described frequency communication method includes:
Step one, control module judge whether the second equipment needing to access；
If step 2 exists, then enable described first communication module；If not existing, then described in forbidden energy first
Communication module or keep described first communication module to be in disabled state.
In an embodiment of the present invention, described frequency communication method also includes: the first equipment and the second equipment lead to
Cross after described switching device completes data interaction, first communication module described in control module forbidden energy, return step
Rapid one.
In an embodiment of the present invention, described step one specifically includes:
Described second communication module is sent out seeking signal；
Described control module judges whether to receive outside to the described answer signal seeking signal；
If receiving, then it is judged as there is the second equipment needing to access；If not receiving, then it is judged as not existing
Need the second equipment accessed.
In an embodiment of the present invention, described control module is by first communication module, second communication module
The mode of write corresponding configuration instruction, enables or forbidden energy respective communication module.
In an embodiment of the present invention, described radio frequency data formats includes radio communication frequency, radio communication association
View and/or RF algorithms.
A kind of switching device, including first communication module, second communication module and control module, wherein,
First communication module is used for the radio frequency data formats according to the first equipment and the first equipment communication；
Second communication module is used for the radio frequency data formats according to the second equipment and the second equipment communication；
Control module turns for carrying out radio frequency data formats between first communication module and second communication module
Change；It is additionally operable to the second equipment judging whether to need to access；Forbidden energy institute is determined whether according to judged result
State first communication module.
In an embodiment of the present invention, described control module includes format converting module, judge module and switch
Module, wherein,
Format converting module is for carrying out radio frequency data formats between first communication module and second communication module
Conversion；
Judge module is for judging whether the second equipment needing to access；
Switch module is for determining whether the first communication mould described in forbidden energy according to the judged result of described judge module
Block.
In an embodiment of the present invention, described control module also includes seeking signal generation module, is used for generating
Seek signal；Described second communication module seeks signal described in being additionally operable to be sent out；Described judge module is used
Outside to the described answer signal seeking signal in judging whether to receive, if receiving, then it is judged as there are needs
The second equipment accessed；If not receiving, then it is judged as there is not the second equipment that needs access.
In an embodiment of the present invention, described control module is to there is need to access second to set in judged result
Time standby, enable described first communication module；When judged result is the second equipment that there is not needs access,
First communication module described in forbidden energy or keep described first communication module to be in disabled state.
In an embodiment of the present invention, described control module is additionally operable to pass through institute at the first equipment and the second equipment
State after switching device completes data interaction, first communication module described in forbidden energy.
A kind of RF system, described RF communication system includes the first equipment, the second equipment, Yi Jishang
State the switching device described in any one；The radio frequency data formats of the first equipment and the second equipment is different.
RF system as claimed in claim 11, it is characterised in that the first equipment is radio communication frequency
Rate is the card reader of 13.56MHz；Second equipment is the terminal with 2.4GHz radio communication frequency RF card.
The beneficial effect comprise that between two equipment that radio frequency data formats is different, filled by switching
Put the conversion carrying out radio frequency data formats so that same equipment matches with radio frequency data formats not affecting
Under conditions of the communication function of opposite equip., add the communication of equipment unmatched with its radio frequency data formats
Function；Whether there is the second equipment that needs access in judging its effective communication distance by switching device simultaneously,
When there is the second equipment needing to access, enable on switching device for the rf data according to the first equipment
, if there is not the second equipment that needs access, then forbidden energy in form and the first communication module of the first equipment communication
This first communication module or keep this first communication module to be in disabled state, so can be prevented effectively from first
Communication module is constantly in enabled state, causes working as to have have the right of same radio frequency data form with the first equipment
When end equipment is wanted to access, switching device is considered as having same radio frequency data form with it by the first equipment mistake
Another opposite equip. and frequently execute anti-collision process, interference with the first equipment, there is the right of radio frequency data formats
The normal access of end equipment.
Accompanying drawing explanation
The schematic diagram of the RF system that Fig. 1 provides for one embodiment of the invention；
Fig. 2 is the flow chart of the frequency communication method of RF communication system shown in Fig. 1.
Detailed description of the invention
Combine accompanying drawing below by detailed description of the invention the present invention is described in further detail.
The present invention the first equipment, the radio frequency data formats difference of the second equipment.The content bag of radio frequency data formats
Include but be not limited to radio communication frequency, RF communication protocol, RF algorithms.First equipment, the second equipment
Radio communication frequency can be the optional frequency between 100KHz to 100GHz, as the first equipment radio frequency lead to
Letter frequency is 13.56MHz, and the radio communication frequency of the second equipment is 2.4GHz.First equipment includes but not office
It is limited to card reader.Second equipment is including, but not limited to having the terminal of radio-frequency card.
Fig. 1 show the RF system that one embodiment of the invention provides, and including the first equipment 1, second sets
Standby 2 and switching device 3；First equipment 1 is different from the radio frequency data formats of the second equipment 2；First equipment 1 includes
Third communication module 11 and the first control module 12；Second equipment 2 includes that fourth communication module 21 and second controls
Module 22；Switching device 3 includes first communication module 31, second communication module 32 and the 3rd control module 33.
First communication module 31 and the first equipment 1 have identical radio frequency data formats, for according to the first equipment
The radio frequency data formats of 1 is communicated with the first equipment 1 by third communication module 11；Second communication module 32
With the second equipment 2, there is identical radio frequency data formats, lead to for the radio frequency data formats according to the second equipment 2
Cross fourth communication module 21 to communicate with the second equipment 2.There is identical radio frequency data formats refer to have
Identical radio communication frequency, RF communication protocol and RF algorithms etc..Such as, the first equipment 1 is that radio frequency leads to
Letter frequency is the card reader of 13.56MHz, and the second equipment 2 is the hands with 2.4GHz radio communication frequency RF card
Machine, then the first communication module 31 on switching device 3 can be: with the reading of 13.56MHz radio communication frequency
Card utensil has the 13.56MHz communication module of same radio frequency data form, and this 13.56MHz communication module can be wrapped
Include 13.56MHz radio-frequency antenna and 13.56MHz radio-frequency (RF) receiving and transmission module；Second communication module 32 on switching device 3
Can be: the 2.4GHz with the radio-frequency card of 2.4GHz radio communication frequency with same radio frequency data form communicates
Module, this 2.4GHz communication module can include 2.4GHz radio-frequency antenna and 2.4GHz radio-frequency (RF) receiving and transmission module.Turn
Connection device 3 may be mounted at the side of card reader, with the center pair of the 13.56MHz radio-frequency antenna in card reader
Together, and the distance between card reader be in 13.56MHz require effective communication distance in the range of, with ensure turn
Connection device 3 can reliably, safely with card reader communicate.
3rd control module 33 is for carrying out radio frequency before first communication module 31 with second communication module 32
Data Format Transform.Concrete, control module 33 can include format converting module 331, judge module 332,
Switch module 333 and seek signal generation module 334.Format converting module 331, judge module 332, open
Close module 333 and seek signal generation module 334 and can be separately provided, it is also possible to being integrated into a module,
Such as the 3rd control module 33.3rd control module 33 can be made up of CPU, can use single CPU mechanism,
Dual processors mechanism can also be used.When using single CPU mechanism, this CPU has been responsible for the first communication mould
Block 31, the configuration of enable/forbidden energy of second communication module 32, be also responsible at the first equipment 1 and second
Radio frequency data formats conversion is carried out between equipment 2；When using dual processors mechanism, can be responsible for by host CPU
Complete, to first communication module 31, the configuration of the enable/forbidden energy of second communication module 32, to be responsible for by from CPU
Complete to carry out radio frequency data formats conversion between the first equipment 1 and the second equipment 2.
Format converting module 331 is for penetrating between first communication module 31 and second communication module 32
Frequently Data Format Transform；Its operation principle may be summarized to be: first communication module 31 is according to the first equipment 1
Radio frequency data formats receives the rf data that the first equipment 1 sends over, and this rf data is through form modulus of conversion
Block 331 is converted into after having same radio frequency data form with the second equipment 2, sends second communication module to
32, the rf data after conversion is sent by second communication module 32 according to the radio frequency data formats of the second equipment 2
To the second equipment 2.Second communication module 32 receives the second equipment according to the radio frequency data formats of the second equipment 2
2 rf datas sended over, this rf data is converted into through format converting module 331 to be had with the first equipment 1
After having identical radio frequency data formats, sending first communication module 31 to, first communication module 31 will conversion
After rf data be sent to the first equipment 1 according to the radio frequency data formats of the first equipment 1.Wherein, radio frequency number
According to including that the first equipment 1 and the second equipment 2 pass through the arbitrary data that switching device 3 is mutual.
Judge module 332 is for judging whether the second equipment 2 needing to access；Switch module 333 is used for
When judged result at judge module 332 is to there is the second equipment 2 needing to access, enables described first and lead to
Letter module 31；When judged result at judge module 332 is the second equipment 2 that there is not needs access, prohibit
Can described first communication module 31 or keep described first communication module 31 to be in disabled state.
As in figure 2 it is shown, for the frequency communication method being applied to RF communication system shown in Fig. 1, concrete bag
Include following flow process:
After S201, switching device 3 power on, first communication module 31 is in disabled state, second communication module
32 are in enabled state, i.e. second communication module 32 is in normal operating conditions, prepare to build with the second equipment 2
Vertical communication connection.
Concrete, can arrange after switching device 3 powers on, the default conditions of first communication module 31 are forbidden energy
State, the default conditions of second communication module 32 are enabled state；
Or arrange after switching device 3 powers on, first communication module 31, the acquiescence shape of second communication module 32
State is disabled state, by switch module 333 by writing corresponding configuration instruction to second communication module 32
Mode, enables second communication module 32；
Or arrange after switching device 3 powers on, first communication module 31, the acquiescence shape of second communication module 32
State is enabled state, by switch module 333 by writing corresponding configuration instruction to first communication module 31
Mode, forbidden energy first communication module 31.
S202, seeking signal generation module 334 and generate and seek signal, second communication module 32 is constantly to outgoing
Go out to seek signal.If the first equipment 1 is radio communication frequency is the card reader of 13.56MHz, the second equipment 2
Being the mobile phone with 2.4GHz radio communication frequency RF card, this seeks signal is card seeking signal.
Whether S203, judge module 332 receive the outside response letter that this seeks signal in judging Preset Time
Number, if receiving, then it is judged as there is the second equipment 2 needing to access, enters step S204, if not receiving,
Then it is judged as there is not the second equipment 2 that needs access, enters step S207.
S204, switch module 333, by the way of writing corresponding configuration instruction to first communication module 31, make
First communication module 31, i.e. first communication module 31 can be in normal operating conditions, prepare and the first equipment 1
Set up communication connection.
S205, the first equipment 1 and the second equipment 2 carry out data interaction by switching device 3.
Concrete, first communication module 31 receives the first equipment 1 according to the radio frequency data formats of the first equipment 1
The rf data sended over, this rf data is converted into through format converting module 331 to be had with the second equipment 2
After having same radio frequency data form, send second communication module 32 to, after second communication module 32 will be changed
Rf data be sent to the second equipment 2 according to the radio frequency data formats of the second equipment 2.Second communication module
32 receive, according to the radio frequency data formats of the second equipment 2, the rf data that the second equipment 2 sends over, and this is penetrated
After frequency is according to being converted into and have identical radio frequency data formats through format converting module 331 with the first equipment 1,
Send first communication module 31 to, first communication module 31 will conversion after rf data according to the first equipment 1
Radio frequency data formats be sent to the first equipment 1.Wherein, rf data includes the first equipment 1 and the second equipment
2 pass through the arbitrary data that switching device 3 is mutual.
After S206, the first equipment 1 and the second equipment 2 complete data interaction by switching device 3, switch
Module 333 by first communication module 31 write corresponding configuration instruction by the way of, forbidden energy first communication module
31, return step S202, carry out the operation seeking the second equipment 2 of next round.
If S207 now first communication module 31 is in enabled state, switch module 333 is by leading to first
Letter module 31 writes the mode of corresponding configuration instruction, forbidden energy first communication module 31, returns step S202,
Carry out the operation seeking the second equipment 2 of next round；If now first communication module 31 is in disabled state,
Then keep the disabled state of first communication module 31, return step S202, carry out seeking of next round and second set
The operation of standby 2.
In the present embodiment, when switching device judges the second equipment that there is not needs access time, forbidden energy first
Communication module or holding first communication module are in disabled state.If the first equipment is radio communication frequency
For the card reader of 13.56MHz, the second equipment is the mobile phone with 2.4GHz radio communication frequency RF card,
First communication module on switching device be with this card reader have same radio frequency data form 13.56MHz lead to
Letter module, if the 13.56MHz communication module on switching device is constantly in enabled state, then this card reader
During performing to initialize and wake up up, switching device can be considered as the radio-frequency card of a 13.56MHz, make
When there is company's card request of 13.56MHz radio-frequency card in the proper external world, this card reader can ceaselessly perform anti-collision and process,
Thus cause extraneous 13.56MHz radio-frequency card this card reader of more difficult normal access, therefore.When switching device judges
When there is not the mobile phone with 2.4GHz radio communication frequency RF card that needs access, on forbidden energy switching device
13.56MHz communication module or keep the 13.56MHz communication module on switching device to be in disabled state,
Above-mentioned interference can be prevented effectively from.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to recognize
Determine the present invention be embodied as be confined to these explanations.Ordinary skill for the technical field of the invention
For personnel, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace,
All should be considered as belonging to protection scope of the present invention.
Claims (12)
1. a frequency communication method, it is characterised in that described frequency communication method is applied to radio frequency and leads to
Communication system, described RF communication system includes the first equipment, the second equipment and switching device；Switching device bag
Include for according to the radio frequency data formats of the first equipment and the first communication module of the first equipment communication, for by
According to radio frequency data formats and the second communication module of the second equipment communication of the second equipment, and for described
The control module of radio frequency data formats conversion is carried out before first communication module and second communication module；Described penetrate
Frequently the means of communication include:
Step one, control module judge whether the second equipment needing to access；
If step 2 exists, then enable described first communication module；If not existing, then described in forbidden energy first
Communication module or keep described first communication module to be in disabled state.
2. frequency communication method as claimed in claim 1, it is characterised in that also include: first sets
After completing data interaction with the second equipment by described switching device, described in control module forbidden energy, first leads to
Letter module, returns step one.
3. frequency communication method as claimed in claim 1, it is characterised in that described step one is concrete
Including:
Described second communication module is sent out seeking signal；
Described control module judges whether to receive outside to the described answer signal seeking signal；
If receiving, then it is judged as there is the second equipment needing to access；If not receiving, then it is judged as not existing
Need the second equipment accessed.
4. frequency communication method as claimed in claim 1, it is characterised in that described control module is led to
Cross to first communication module, the mode of second communication module write corresponding configuration instruction, enable or forbidden energy is corresponding
Communication module.
5. the frequency communication method as described in any one of Claims 1-4, it is characterised in that described
Radio frequency data formats includes radio communication frequency, RF communication protocol and/or RF algorithms.
6. a switching device, it is characterised in that include first communication module, second communication module and
Control module, wherein,
First communication module is used for the radio frequency data formats according to the first equipment and the first equipment communication；
Second communication module is used for the radio frequency data formats according to the second equipment and the second equipment communication；
Control module turns for carrying out radio frequency data formats between first communication module and second communication module
Change；It is additionally operable to the second equipment judging whether to need to access；Forbidden energy institute is determined whether according to judged result
State first communication module.
7. switching device as claimed in claim 6, it is characterised in that described control module includes lattice
Formula modular converter, judge module and switch module, wherein,
Format converting module is for carrying out radio frequency data formats between first communication module and second communication module
Conversion；
Judge module is for judging whether the second equipment needing to access；
Switch module is for determining whether the first communication mould described in forbidden energy according to the judged result of described judge module
Block.
8. switching device as claimed in claim 7, it is characterised in that described control module also includes
Seek signal generation module, seek signal for generation；Described second communication module is additionally operable to be sent out institute
State and seek signal；Described judge module is outside to the described answer signal seeking signal for judging whether to receive,
If receiving, then it is judged as there is the second equipment needing to access；If not receiving, then it is judged as there are not needs
The second equipment accessed.
9. the switching device as described in any one of claim 6 to 8, it is characterised in that described control
Module, when judged result is to there is the second equipment needing to access, enables described first communication module；Sentencing
When disconnected result is the second equipment that there is not needs access, described in forbidden energy, first communication module or holding are described
First communication module is in disabled state.
10. switching device as claimed in claim 9, it is characterised in that described control module is additionally operable to
After the first equipment and the second equipment complete data interaction by described switching device, described in forbidden energy, first leads to
Letter module.
11. 1 kinds of RF systems, it is characterised in that described RF communication system include the first equipment,
Second equipment, and the switching device as described in any one of claim 6 to 10；First equipment and second sets
Standby radio frequency data formats is different.
12. RF systems as claimed in claim 11, it is characterised in that the first equipment is to penetrate
Frequently communication frequency is the card reader of 13.56MHz；Second equipment is to have 2.4GHz radio communication frequency RF
The terminal of card.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210204561.4A CN103516398B (en) | 2012-06-20 | 2012-06-20 | A kind of frequency communication method, switching device and RF system |
| PCT/CN2012/087883 WO2013097772A1 (en) | 2011-12-30 | 2012-12-28 | Radio frequency communication system, method, and terminal, radio frequency adaptation device, and card reading apparatus |
| TW101151090A TWI616073B (en) | 2011-12-30 | 2012-12-28 | Radio frequency communication system, method, terminal, radio frequency switching device and card reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210204561.4A CN103516398B (en) | 2012-06-20 | 2012-06-20 | A kind of frequency communication method, switching device and RF system |
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| Publication Number | Publication Date |
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| CN103516398A CN103516398A (en) | 2014-01-15 |
| CN103516398B true CN103516398B (en) | 2016-12-21 |
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| CN201210204561.4A Active CN103516398B (en) | 2011-12-30 | 2012-06-20 | A kind of frequency communication method, switching device and RF system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103235686A (en) * | 2013-03-29 | 2013-08-07 | 北京智谷睿拓技术服务有限公司 | Application management method and device |
| CN115225132A (en) * | 2021-04-16 | 2022-10-21 | 中电科航空电子有限公司 | Radio frequency forbidding control method and system of airborne satellite communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539982A (en) * | 2008-03-19 | 2009-09-23 | 广州盛华信息技术有限公司 | Radiofrequency transforming bridge equipment, radiofrequency identification system and radiofrequency data transfer method |
| CN201556213U (en) * | 2010-01-12 | 2010-08-18 | 惠州市恒睿电子科技有限公司 | Wireless multi-protocol RFID communication converter |
| CN101860383A (en) * | 2010-06-13 | 2010-10-13 | 武汉天喻信息产业股份有限公司 | Bridging equipment for realizing double-frequency non-contact communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2390509A (en) * | 2002-07-03 | 2004-01-07 | Marconi Information Systems Lt | Smart label reader interfacing device |
-
2012
- 2012-06-20 CN CN201210204561.4A patent/CN103516398B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539982A (en) * | 2008-03-19 | 2009-09-23 | 广州盛华信息技术有限公司 | Radiofrequency transforming bridge equipment, radiofrequency identification system and radiofrequency data transfer method |
| CN201556213U (en) * | 2010-01-12 | 2010-08-18 | 惠州市恒睿电子科技有限公司 | Wireless multi-protocol RFID communication converter |
| CN101860383A (en) * | 2010-06-13 | 2010-10-13 | 武汉天喻信息产业股份有限公司 | Bridging equipment for realizing double-frequency non-contact communication |
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