CN108573182A - A kind of radio frequency signal communication method and system - Google Patents
A kind of radio frequency signal communication method and system Download PDFInfo
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- CN108573182A CN108573182A CN201810385251.4A CN201810385251A CN108573182A CN 108573182 A CN108573182 A CN 108573182A CN 201810385251 A CN201810385251 A CN 201810385251A CN 108573182 A CN108573182 A CN 108573182A
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- terminal
- frequency
- electronic tag
- reader
- identification code
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- 238000004891 communication Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000012795 verification Methods 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000009432 framing Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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Classifications
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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
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- H04B5/77—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
Abstract
The invention discloses a kind of radio frequency signal communication method and system, are related to field of radio frequency communication.This method includes:Trigger signal is generated, includes the band information of electronic tag in trigger signal;The tranmitting frequency that radiofrequency signal is adjusted according to trigger signal, makes the tranmitting frequency of radiofrequency signal and the frequency band match of electronic tag;Data exchange is carried out with electronic tag.A kind of radio frequency signal communication method and system provided by the invention, by generating trigger signal, the frequency for the radiofrequency signal that reader is sent is adjusted according to the band information for the electronic tag for including in trigger signal, have the advantages that realize simple, make the tranmitting frequency of radiofrequency signal and the frequency band match of electronic tag, realize the data exchange between same reader and different types of electronic tag, improve the compatibility of reader, so that reader and the electronic tag of different frequency is carried out data exchange, improves the scope of application of reader.
Description
Technical field
The present invention relates to field of radio frequency communication more particularly to a kind of radio frequency signal communication method and system.
Background technology
Currently, in field of radio frequency communication, since technology development time is different, occur a variety of be based in real life
The near field of technology for radio frequency pays communication plan, for example, NFC, RFID-SIM etc., frequency of these readers due to its support
Difference, causes compatible very poor each other, for example, supporting the reader of NFC that can not support RFID-SIM, needs corresponding radio frequency whole
End.
Invention content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of radio frequency signal communication method
And system.
The technical solution that the present invention solves above-mentioned technical problem is as follows:
A kind of radio frequency signal communication method, including:
Trigger signal is generated, includes the band information of electronic tag in the trigger signal;
The tranmitting frequency that radiofrequency signal is adjusted according to the trigger signal, make the tranmitting frequency of the radiofrequency signal with it is described
The frequency band match of electronic tag;
Data exchange is carried out with the electronic tag.
The beneficial effects of the invention are as follows:A kind of radio frequency signal communication method provided by the invention, by generating trigger signal,
The frequency for the radiofrequency signal that reader is sent is adjusted according to the band information for the electronic tag for including in trigger signal, is had and is realized
Simple advantage makes the tranmitting frequency of radiofrequency signal and the frequency band match of electronic tag, realize same reader from it is different
Data exchange between the electronic tag of type improves the compatibility of reader, enables electricity of the reader with different frequency
Subtab carries out data exchange, improves the scope of application of reader.
Based on the above technical solution, the present invention can also be improved as follows.
Further, before the generation trigger signal, further include:
Obtain the identification code that rf terminal is sent;
Cryptographic Hash is generated according to the identification code;
According to the cryptographic Hash from being stored with cryptographic Hash and match the Hash in the database of band information correspondence
It is worth corresponding band information;
When being matched to band information corresponding with the cryptographic Hash, judge that the band information is currently sent out with radiofrequency signal
Whether radio frequency rate matches;
When the band information and the current tranmitting frequency of the radiofrequency signal mismatch, generated according to the band information
Adjust the trigger signal of the current tranmitting frequency of the radiofrequency signal.
Advantageous effect using above-mentioned further scheme is:Cryptographic Hash is generated by the identification code of acquisition, and according to Hash
Value directly matches the band information of corresponding rf terminal from database, can quickly obtain the frequency range letter of rf terminal
Breath, can simplify the process analyzed identification code, improve the speed and efficiency of identification.
The another technical solution that the present invention solves above-mentioned technical problem is as follows:
A kind of radio frequency signal communication system, including:Reader and electronic tag, wherein the reader includes:
Trigger signal acquiring unit includes the electronic tag for generating trigger signal, in the trigger signal
Band information;
Tranmitting frequency adjustment unit, the tranmitting frequency for adjusting radiofrequency signal according to the trigger signal make described penetrate
The frequency band match of the tranmitting frequency of frequency signal and the electronic tag;
Data exchange unit, for carrying out data exchange with the electronic tag.
The beneficial effects of the invention are as follows:A kind of radio frequency signal communication system provided by the invention, reader are touched by generating
It signals, the frequency for the radiofrequency signal that reader is sent is adjusted according to the band information for the electronic tag for including in trigger signal,
Have the advantages that realization is simple, makes the tranmitting frequency of radiofrequency signal and the frequency band match of electronic tag, realize same read-write
Data exchange between device and different types of electronic tag improves the compatibility of reader, enables reader and difference
The electronic tag of frequency carries out data exchange, improves the scope of application of reader.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the reader further includes:
Second identification code acquiring unit, the identification code for obtaining rf terminal transmission;
Hash generation unit, for generating cryptographic Hash according to the identification code;
Hash matching unit, for according to the cryptographic Hash from the number for being stored with device type and band information correspondence
According to matching the corresponding band information of the cryptographic Hash in library;
Second frequency judging unit, for when being matched to band information corresponding with the cryptographic Hash, judging the frequency
Whether segment information matches with the current tranmitting frequency of radiofrequency signal;
Second trigger signal generation unit, for when the band information and the current tranmitting frequency of the radiofrequency signal not
Timing generates the trigger signal for adjusting the current tranmitting frequency of radiofrequency signal according to the band information.
Advantageous effect using above-mentioned further scheme is:Cryptographic Hash is generated by the identification code of acquisition, and according to Hash
Value directly matches the band information of corresponding rf terminal from database, can quickly obtain the frequency range letter of rf terminal
Breath, can simplify the process analyzed identification code, improve the speed and efficiency of identification.
The another technical solution that the present invention solves above-mentioned technical problem is as follows:
A kind of computer readable storage medium, including instruction, when described instruction is run on computers, make the calculating
Machine executes the method described in above-mentioned technical proposal.
The advantages of additional aspect of the invention, will be set forth in part in the description, and will partly become from the following description
It obtains obviously, or practice is recognized through the invention.
Description of the drawings
Fig. 1 is a kind of flow diagram of one embodiment of radio frequency signal communication method of the present invention;
Fig. 2 is a kind of flow diagram of another embodiment of radio frequency signal communication method of the present invention;
Fig. 3 is a kind of flow diagram of the another embodiment of radio frequency signal communication method of the present invention;
Fig. 4 is a kind of flow diagram of the another embodiment of radio frequency signal communication method of the present invention;
Fig. 5 is a kind of structural framing figure of one embodiment of radio frequency signal communication system of the present invention;
Fig. 6 is a kind of structural framing figure of another embodiment of radio frequency signal communication system of the present invention;
Fig. 7 is a kind of network topological diagram of the another embodiment of radio frequency signal communication system of the present invention.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figure 1, for a kind of flow diagram of one embodiment of radio frequency signal communication method of the present invention, in the reality
It applies in example, provides a kind of radio frequency signal communication method that can be applied between rf terminal and reader, this method includes:
S1, generates trigger signal, includes the band information of electronic tag in trigger signal.
It should be noted that reader generates trigger signal, trigger signal is used to trigger the frequency modulation device in reader, lead to
The band information for crossing the electronic tag in the rf terminal carried in identification trigger signal adjusts the emitter transmitting of reader
Radiofrequency signal frequency.
There are many acquisition patterns of trigger signal, for example, can be by being manually entered, when user needs and particular radio-frequency terminal
When carrying out data exchange, it can generate the trigger signal of corresponding frequencies by selecting required frequency, be then input to read-write
In device.
In another example rf terminal can also be identified by reader, when the device type for identifying rf terminal
When, the correspondence of the storage on backstage can be called, the available frequency band information of the type equipment is obtained, then generates triggering letter
Number.
It is substantially to be carried out with the electronic tag in rf terminal when reader and rf terminal carry out data exchange
Data exchange, therefore, as long as obtaining the band information of electronic tag, record has the electronic tag to support in band information
The information such as frequency, agreement.
S2 adjusts the tranmitting frequency of radiofrequency signal according to trigger signal, makes the tranmitting frequency and electronic tag of radiofrequency signal
Frequency band match.
It should be noted that the mode of adjustment frequency have it is many in, realization method also there are many kinds of, tuning range can
To be arranged according to actual needs.
For example, the adjustment to emission of radio frequency signals frequency can be realized by frequency changer circuit.
When reader transmitting radiofrequency signal frequency it is identical as the frequency that electronic tag is supported when, so that it may with electronics mark
Label carry out data exchange.
It should be noted that making the tranmitting frequency of radiofrequency signal and the frequency band match of electronic tag, refer to working as other
When part meets, reader can carry out data exchange with rf terminal, it may be considered that the tranmitting frequency and electronics of radiofrequency signal
The frequency range of label matches.
For example, since radio communication belongs to near-field communication technology, there is certain want for communication distance, communication environment etc.
It asks, then when meeting the following conditions between reader and electronic tag:Communication distance meets the requirements, communication protocol conforms to
Ask, communication environment meets the requirements, the intensity of radiofrequency signal meets the requirements, data may be implemented between reader and rf terminal
It exchanges, then can think that the tranmitting frequency of radiofrequency signal and the frequency range of electronic tag match.
S3 carries out data exchange with electronic tag.
It should be noted that when radiofrequency signal tranmitting frequency and electronic tag frequency band match after, just have read-write
Device carries out the prerequisite of data exchange with rf terminal, after meeting other conditions, such as certification, encryption, so that it may to realize
Data exchange is carried out with electronic tag.
A kind of radio frequency signal communication method provided in this embodiment is wrapped by generating trigger signal according in trigger signal
The frequency for the radiofrequency signal that the band information adjustment reader of the electronic tag contained is sent, has the advantages that realization is simple, makes to penetrate
The tranmitting frequency of frequency signal and the frequency band match of electronic tag, realize same reader and different types of electronic tag it
Between data exchange, improve the compatibility of reader, the electronic tag of reader and different frequency enable to carry out data friendship
It changes, improves the scope of application of reader.
As shown in Fig. 2, for a kind of flow diagram of another embodiment of radio frequency signal communication method of the present invention, above-mentioned
On the basis of embodiment, the present invention can also be further improved, and in the present embodiment, it is logical provide a kind of preferred radiofrequency signal
Letter method, this method include:
S1, generates trigger signal, includes the band information of electronic tag in trigger signal.
It should be noted that reader generates trigger signal, trigger signal is used to trigger the frequency modulation device in reader, lead to
The band information for crossing the electronic tag in the rf terminal carried in identification trigger signal adjusts the emitter transmitting of reader
Radiofrequency signal frequency.
There are many acquisition patterns of trigger signal, for example, can be by being manually entered, when user needs and particular radio-frequency terminal
When carrying out data exchange, it can generate the trigger signal of corresponding frequencies by selecting required frequency, be then input to read-write
In device.
In another example rf terminal can also be identified by reader, when the device type for identifying rf terminal
When, the correspondence of the storage on backstage can be called, the available frequency band information of the type equipment is obtained, then generates triggering letter
Number.
It is substantially to be carried out with the electronic tag in rf terminal when reader and rf terminal carry out data exchange
Data exchange, therefore, as long as obtaining the band information of electronic tag, record has the electronic tag to support in band information
The information such as frequency, agreement.
Preferably, before step S1, can also include:
S11 obtains the identification code that rf terminal is sent, and the frequency range letter of the electronic tag of rf terminal is obtained according to identification code
Breath.
It should be noted that including the frequency for the electronic tag being arranged in the rf terminal in the identification code of rf terminal
Segment information.
The mode of acquisition can be obtained by other communication modes wirelessly or non-wirelessly, for example, can be by additional
Identification device identification need with rf terminal carry out radio communication device type, further according to rf terminal type with prestore
Rf terminal type be compared with the correspondence of the band information of electronic tag, obtain the electronics built in the rf terminal
The band information of label.
Preferably, the figure of imaging identification device collecting device terminal when rf terminal is close to rf terminal can be passed through
Picture, then the characteristic point by extracting rf terminal in image, are matched with the characteristic point of the rf terminal to prestore, and then are identified
The type of rf terminal.
By the image of collecting device terminal, the type of rf terminal can be quickly identified, can avoid manually knowing
The troublesome operation mode of other input radio frequency terminal type improves the speed and efficiency of radio communication, and accurate with discrimination
The high advantage of rate.
Preferably, the rf terminal for needing to carry out data exchange can also be selected on reader by artificial mode
Type, then generate rf terminal identification code, for reader identify rf terminal type.
S12, judges whether band information matches with the current tranmitting frequency of radiofrequency signal.
S13 generates adjustment radio frequency when band information is mismatched with the current tranmitting frequency of radiofrequency signal according to band information
The trigger signal of the current tranmitting frequency of signal.
Preferably, when band information is matched with the current tranmitting frequency of radiofrequency signal, illustrate that reader can be with the radio frequency
Terminal is communicated, then haves no need to change the frequency of the radiofrequency signal of reader transmitting.
Preferably, it in step S11, can specifically include:
S111a obtains the identification code that rf terminal is sent, and identification code includes the device type information of rf terminal.
S112a identifies the device type of rf terminal according to identification code.
S113a, according to the device type of rf terminal, from the number for the correspondence for being stored with device type and band information
The band information of the electronic tag corresponding to the device type of the rf terminal is obtained according to matching in library.
It is identified and judges by the device type to rf terminal, electronics mark in rf terminal can be accurately obtained
Sign corresponding band information.
S2 adjusts the tranmitting frequency of radiofrequency signal according to trigger signal, makes the tranmitting frequency and electronic tag of radiofrequency signal
Frequency band match.
It should be noted that the mode of adjustment frequency have it is many in, realization method also there are many kinds of, tuning range can
To be arranged according to actual needs.
For example, the adjustment to emission of radio frequency signals frequency can be realized by frequency changer circuit.
When reader transmitting radiofrequency signal frequency it is identical as the frequency that electronic tag is supported when, so that it may with electronics mark
Label carry out data exchange.
It should be noted that making the tranmitting frequency of radiofrequency signal and the frequency band match of electronic tag, refer to working as other
When part meets, reader can carry out data exchange with rf terminal, it may be considered that the tranmitting frequency and electronics of radiofrequency signal
The frequency range of label matches.
For example, since radio communication belongs to near-field communication technology, there is certain want for communication distance, communication environment etc.
It asks, then when meeting the following conditions between reader and electronic tag:Communication distance meets the requirements, communication protocol conforms to
Ask, communication environment meets the requirements, the intensity of radiofrequency signal meets the requirements, data may be implemented between reader and rf terminal
It exchanges, then can think that the tranmitting frequency of radiofrequency signal and the frequency range of electronic tag match.
S3 carries out data exchange with electronic tag.
It should be noted that when radiofrequency signal tranmitting frequency and electronic tag frequency band match after, just have read-write
Device carries out the prerequisite of data exchange with rf terminal, after meeting other conditions, such as certification, encryption, so that it may to realize
Data exchange is carried out with electronic tag.
Preferably, as shown in figure 3, illustrating for a kind of flow of the another embodiment of radio frequency signal communication method of the present invention
Scheme, before step S3, can also include:
S31 sends certification request information to electronic tag and recognizes after electronic tag enters the identification range of radiofrequency signal
Code is demonstrate,proved, authentication code includes the identification code of rf terminal and the current tranmitting frequency of radiofrequency signal.
It should be noted that after having adjusted the frequency relation between reader and rf terminal, make reader and radio frequency
Terminal has the prerequisite of communication, but cannot be guaranteed therefore the safety communicated therebetween is carrying out communicating it
Before, it is also necessary to the identity of rf terminal is verified by certification request information and authentication code.
In this step, include that the current tranmitting frequency of radiofrequency signal and radio frequency are whole in the authentication code emitted to rf terminal
The identification code at end can improve the safety of authentication code in this way.
It should be noted that the identification range of radiofrequency signal is according to practical determination, when other conditions meet, electronic tag
Data exchange can be carried out with reader, then can consider that electronic tag enters the identification range of radiofrequency signal.
As shown in table 1, the identification range corresponding to the frequency of several readers is given below.
Frequency | Identify distance |
30MHz | 0~1cm |
135KHz | 1m |
2.45GHz | 1~10m |
Table 1
S32 is encrypted authentication code according to predetermined encryption algorithm after acquisition electronic tag receives certification request information
The encrypted result obtained after operation.
It should be noted that preset Encryption Algorithm can be arranged according to actual demand.
For example, predetermined encryption algorithm can be Hash Encryption Algorithm.
For example, predetermined encryption algorithm can be symmetric encipherment algorithm.
Encrypted result and authentication code are sent to server and verified by S33.
For example, can be solved to encrypted result in the inverse operation for storing predetermined encryption algorithm in the server in advance
After close, authentication code can be obtained, the identity of rf terminal and reader is verified further according to authentication code.
S34 obtains the verification result that server verifies encrypted result according to authentication code.
After server authentication, the result after verification can be sent to reader, reader is determined according to verification result
It is fixed whether with rf terminal to carry out data exchange.
S35 carries out data exchange when verification result is to be verified with electronic tag.
Preferably, when verification result be verification not by when, can be sent out by reader audible and visual alarm prompt.
By being verified to the identity of rf terminal before data exchange, the safety of radio communication can be improved.
Preferably, can also include:
S36, when verification result be verification not by when, according to the identification code of rf terminal obtain electronic tag unique knowledge
Other code.
It should be noted that unique identifier storage is stored with electronic tag with the storage unit of electronic tag
Unique identity information.Include the band information for the electronic tag being arranged in the rf terminal in the identification code of rf terminal,
The unique identifier of the electronic tag can also be added in the identification code of rf terminal, by electronic tag in rf terminal
The identification code of band information and unique identifier as rf terminal.
S37 is updated the corresponding authentication failed number of unique identifier, the frequency of failure is increased primary.
It should be noted that at server end or reader end, authentication failed database can be preset, wherein being stored with
Unique identifier, failure cause and the frequency of failure of the electronic tag of authentication failed, and be updated in real time.
S38, when the frequency of failure reaches preset times, it includes electronic tag unique identification to be sent to preset alarm terminal
The warning message of code.
It is detected by the frequency of failure to electronic tag, user can be reminded to replace in time, and identification is insensitive to penetrate
Frequency terminal, or safeguarded in time, the behaviors such as malicious attack can also be effectively prevented.
A kind of radio frequency signal communication method provided in this embodiment obtains the equipment class of rf terminal in several ways
Type, and the band information of the electronic tag in device end is obtained accordingly, the radiofrequency signal emitted can be adjusted in order to reader
Frequency, reader can be made to support the rf terminal of different frequency, enable the electronic tag of reader and different frequency into
Row data exchange improves the scope of application of reader, and after adjusting frequency, is recognized by the identity to rf terminal
Card, can improve the safety of radio communication, and record the number of its certification that fails, and user can effectively be reminded to update or tie up
Protect the undesirable rf terminal of discrimination.
As shown in figure 4, for a kind of flow diagram of the another embodiment of radio frequency signal communication method of the present invention, above-mentioned
On the basis of embodiment, the present invention can also be further improved, and in the present embodiment, it is logical provide a kind of preferred radiofrequency signal
Letter method, this method include:
S1, generates trigger signal, includes the band information of electronic tag in trigger signal.
It should be noted that reader generates trigger signal, trigger signal is used to trigger the frequency modulation device in reader, lead to
The band information for crossing the electronic tag in the rf terminal carried in identification trigger signal adjusts the emitter transmitting of reader
Radiofrequency signal frequency.
There are many acquisition patterns of trigger signal, for example, can be by being manually entered, when user needs and particular radio-frequency terminal
When carrying out data exchange, it can generate the trigger signal of corresponding frequencies by selecting required frequency, be then input to read-write
In device.
In another example rf terminal can also be identified by reader, when the device type for identifying rf terminal
When, the correspondence of the storage on backstage can be called, the available frequency band information of the type equipment is obtained, then generates triggering letter
Number.
It is substantially to be carried out with the electronic tag in rf terminal when reader and rf terminal carry out data exchange
Data exchange, therefore, as long as obtaining the band information of electronic tag, record has the electronic tag to support in band information
The information such as frequency, agreement.
Preferably, before step S1, can also include:
S11 obtains the identification code that rf terminal is sent, and the frequency range letter of the electronic tag of rf terminal is obtained according to identification code
Breath.
It should be noted that including the frequency for the electronic tag being arranged in the rf terminal in the identification code of rf terminal
Segment information.
The mode of acquisition can be obtained by other communication modes wirelessly or non-wirelessly, for example, can be by additional
Identification device identification need with rf terminal carry out radio communication device type, further according to rf terminal type with prestore
Rf terminal type be compared with the correspondence of the band information of electronic tag, obtain the electronics built in the rf terminal
The band information of label.
Preferably, the figure of imaging identification device collecting device terminal when rf terminal is close to rf terminal can be passed through
Picture, then the characteristic point by extracting rf terminal in image, are matched with the characteristic point of the rf terminal to prestore, and then are identified
The type of rf terminal.
By the image of collecting device terminal, the type of rf terminal can be quickly identified, can avoid manually knowing
The troublesome operation mode of other input radio frequency terminal type improves the speed and efficiency of radio communication, and accurate with discrimination
The high advantage of rate.
Preferably, the rf terminal for needing to carry out data exchange can also be selected on reader by artificial mode
Type, then generate rf terminal identification code, for reader identify rf terminal type.
S12, judges whether band information matches with the current tranmitting frequency of radiofrequency signal.
S13 generates adjustment radio frequency when band information is mismatched with the current tranmitting frequency of radiofrequency signal according to band information
The trigger signal of the current tranmitting frequency of signal.
Preferably, when band information is matched with the current tranmitting frequency of radiofrequency signal, illustrate that reader can be with the radio frequency
Terminal is communicated, then haves no need to change the frequency of the radiofrequency signal of reader transmitting.
Preferably, it in step S11, can specifically include:
S111b obtains the identification code that rf terminal is sent.
For example, identification code includes the device type information of rf terminal.
S112b generates cryptographic Hash according to identification code.
For example, the type information of equipment can be indicated by specific character string, then obtaining the character string
Afterwards, so that it may to carry out Hash operation according to character string, obtain cryptographic Hash.
S113b matches cryptographic Hash from cryptographic Hash is stored with according to cryptographic Hash with the database of band information correspondence
Corresponding band information.
Cryptographic Hash is generated by the identification code of acquisition, and directly matches corresponding radio frequency end from database according to cryptographic Hash
The band information at end can quickly obtain the band information of rf terminal, can simplify the process analyzed identification code,
Improve the speed and efficiency of identification.
S2 adjusts the tranmitting frequency of radiofrequency signal according to trigger signal, makes the tranmitting frequency and electronic tag of radiofrequency signal
Frequency band match.
It should be noted that the mode of adjustment frequency have it is many in, realization method also there are many kinds of, tuning range can
To be arranged according to actual needs.
For example, the adjustment to emission of radio frequency signals frequency can be realized by frequency changer circuit.
When reader transmitting radiofrequency signal frequency it is identical as the frequency that electronic tag is supported when, so that it may with electronics mark
Label carry out data exchange.
It should be noted that making the tranmitting frequency of radiofrequency signal and the frequency band match of electronic tag, refer to working as other
When part meets, reader can carry out data exchange with rf terminal, it may be considered that the tranmitting frequency and electronics of radiofrequency signal
The frequency range of label matches.
For example, since radio communication belongs to near-field communication technology, there is certain want for communication distance, communication environment etc.
It asks, then when meeting the following conditions between reader and electronic tag:Communication distance meets the requirements, communication protocol conforms to
Ask, communication environment meets the requirements, the intensity of radiofrequency signal meets the requirements, data may be implemented between reader and rf terminal
It exchanges, then can think that the tranmitting frequency of radiofrequency signal and the frequency range of electronic tag match.
S3 carries out data exchange with electronic tag.
It should be noted that when radiofrequency signal tranmitting frequency and electronic tag frequency band match after, just have read-write
Device carries out the prerequisite of data exchange with rf terminal, after meeting other conditions, such as certification, encryption, so that it may to realize
Data exchange is carried out with electronic tag.
Preferably, as shown in figure 3, illustrating for a kind of flow of the another embodiment of radio frequency signal communication method of the present invention
Scheme, before step S3, can also include:
S31 sends certification request information to electronic tag and recognizes after electronic tag enters the identification range of radiofrequency signal
Code is demonstrate,proved, authentication code includes the identification code of rf terminal and the current tranmitting frequency of radiofrequency signal.
It should be noted that after having adjusted the frequency relation between reader and rf terminal, make reader and radio frequency
Terminal has the prerequisite of communication, but cannot be guaranteed therefore the safety communicated therebetween is carrying out communicating it
Before, it is also necessary to the identity of rf terminal is verified by certification request information and authentication code.
In this step, include that the current tranmitting frequency of radiofrequency signal and radio frequency are whole in the authentication code emitted to rf terminal
The identification code at end can improve the safety of authentication code in this way.
It should be noted that the identification range of radiofrequency signal is according to practical determination, when other conditions meet, electronic tag
Data exchange can be carried out with reader, then can consider that electronic tag enters the identification range of radiofrequency signal.
S32 is encrypted authentication code according to predetermined encryption algorithm after acquisition electronic tag receives certification request information
The encrypted result obtained after operation.
It should be noted that preset Encryption Algorithm can be arranged according to actual demand.
For example, predetermined encryption algorithm can be Hash Encryption Algorithm.
For example, predetermined encryption algorithm can be symmetric encipherment algorithm.
Encrypted result and authentication code are sent to server and verified by S33.
For example, can be solved to encrypted result in the inverse operation for storing predetermined encryption algorithm in the server in advance
After close, authentication code can be obtained, the identity of rf terminal and reader is verified further according to authentication code.
S34 obtains the verification result that server verifies encrypted result according to authentication code.
After server authentication, the result after verification can be sent to reader, reader is determined according to verification result
It is fixed whether with rf terminal to carry out data exchange.
S35 carries out data exchange when verification result is to be verified with electronic tag.
Preferably, when verification result be verification not by when, can be sent out by reader audible and visual alarm prompt.
By being verified to the identity of rf terminal before data exchange, the safety of radio communication can be improved.
Preferably, can also include:
S36, when verification result be verification not by when, according to the identification code of rf terminal obtain electronic tag unique knowledge
Other code.
It should be noted that unique identifier storage is stored with electronic tag with the storage unit of electronic tag
Unique identity information.Include the band information for the electronic tag being arranged in the rf terminal in the identification code of rf terminal,
The unique identifier of the electronic tag can also be added in the identification code of rf terminal, by electronic tag in rf terminal
The identification code of band information and unique identifier as rf terminal.
S37 is updated the corresponding authentication failed number of unique identifier, the frequency of failure is increased primary.
It should be noted that at server end or reader end, authentication failed database can be preset, wherein being stored with
Unique identifier, failure cause and the frequency of failure of the electronic tag of authentication failed, and be updated in real time.
S38, when the frequency of failure reaches preset times, it includes electronic tag unique identification to be sent to preset alarm terminal
The warning message of code.
It is detected by the frequency of failure to electronic tag, user can be reminded to replace in time, and identification is insensitive to penetrate
Frequency terminal, or safeguarded in time, the behaviors such as malicious attack can also be effectively prevented.
A kind of radio frequency signal communication method provided in this embodiment, by the identification code generation cryptographic Hash of acquisition, and according to
Cryptographic Hash directly matches the band information of corresponding rf terminal from database, can quickly obtain the frequency range of rf terminal
Information can simplify the process analyzed identification code, improve the speed and efficiency of identification, convenient for reader adjustment transmitting
The frequency of radiofrequency signal can make reader support the rf terminal of different frequency, enable electricity of the reader with different frequency
Subtab carries out data exchange, improves the scope of application of reader, and after adjusting frequency, pass through the body to rf terminal
Part is authenticated, and can improve the safety of radio communication, and records the number of its certification that fails, and can effectively remind user
Update or safeguard the undesirable rf terminal of discrimination.
As shown in figure 5, for a kind of structural framing figure of one embodiment of radio frequency signal communication system of the present invention, this implementation
A kind of radio frequency signal communication system that example provides, can be widely applied to the radio communication scene of various frequencies, which includes:
Reader 1, rf terminal 2 and server 3, wherein rf terminal 2 is built-in with electronic tag 20.
These equipment are illustrated separately below.
Reader 1 includes:
Trigger signal acquiring unit 101 includes the frequency range of electronic tag 20 for generating trigger signal, in trigger signal
Information.
Tranmitting frequency adjustment unit 102, the tranmitting frequency for adjusting radiofrequency signal according to trigger signal, makes radiofrequency signal
Tranmitting frequency and electronic tag 20 frequency band match.
Data exchange unit 103, for carrying out data exchange with electronic tag 20.
Preferably, reader 1 further includes:
First identification code acquiring unit 104a, the identification code for obtaining the transmission of rf terminal 2, identification code includes radio frequency
The device type information of terminal 2.
Band information analytic unit 105a, the frequency range letter of the electronic tag 20 for obtaining rf terminal 2 according to identification code
Breath.
First frequency judging unit 106a, for judging whether the current tranmitting frequency of band information and radiofrequency signal matches.
First trigger signal generation unit 107a, for being mismatched when band information and the current tranmitting frequency of radiofrequency signal
When, the trigger signal of the adjustment current tranmitting frequency of radiofrequency signal is generated according to band information.
Preferably, identification code includes the device type information of rf terminal 2, and band information analytic unit 105a includes:
Device type identifies subelement, the device type for identifying rf terminal 2 according to identification code.
Band information identifies subelement, for according to the device type of rf terminal 2, from being stored with device type and frequency range
Matching obtains the frequency range of the electronic tag 20 corresponding to the device type of the rf terminal 2 in the database of the correspondence of information
Information.
Preferably, reader 1 further includes:
Radio frequency transmitting unit 108 is used for after electronic tag 20 enters the identification range of radiofrequency signal, to electronic tag 20
It includes the identification code of rf terminal 2 and the current tranmitting frequency of radiofrequency signal to send certification request information and authentication code, authentication code.
Encrypted result acquiring unit 109, for obtaining after electronic tag 20 receives certification request information, according to default plus
The encrypted result obtained after operation is encrypted to authentication code in close algorithm.
Checking request unit 110 is verified for encrypted result and authentication code to be sent to server 3.
Verification result acquiring unit 111 is verified encrypted result according to authentication code for obtaining server 3
Verification result.
Verification result judging unit 112, for when verification result is to be verified, data friendship to be carried out with electronic tag 20
It changes.
Preferably, reader 1 further includes:
Third identification code acquiring unit 113, for when verification result be verification not by when, according to the knowledge of rf terminal 2
Other code obtains the unique identifier of electronic tag 20.
First identification code judging unit 114 will lose for being updated to the corresponding authentication failed number of unique identifier
Number is lost to increase once.
Alarm unit 115 includes electronics for when the frequency of failure reaches preset times, being sent to preset alarm terminal
The warning message of 20 unique identifier of label.
A kind of radio frequency signal communication system provided in this embodiment obtains the equipment class of rf terminal 2 by reader 1
Type, and the band information of the electronic tag 20 in device end is obtained accordingly, the radio frequency letter of transmitting can be adjusted in order to reader 1
Number frequency, can make reader 1 support different frequency rf terminal 2, enable electronics mark of the reader 1 with different frequency
Label 20 carry out data exchange, improve the scope of application of reader 1, and after adjusting frequency, pass through the body to rf terminal 2
Part is authenticated, and can improve the safety of radio communication, and records the number of its certification that fails, and can effectively remind user
Update or safeguard the undesirable rf terminal of discrimination 2.
As shown in fig. 6, for a kind of structural framing figure of another embodiment of radio frequency signal communication system of the present invention, this implementation
A kind of radio frequency signal communication system that example provides, can be widely applied to the radio communication scene of various frequencies, which includes:
The system includes:Reader 1, rf terminal 2 and server 3, wherein rf terminal 2 is built-in with electronic tag 20.
These equipment are illustrated separately below.
Reader 1 includes:
Trigger signal acquiring unit 101 includes the frequency range of electronic tag 20 for generating trigger signal, in trigger signal
Information.
Tranmitting frequency adjustment unit 102, the tranmitting frequency for adjusting radiofrequency signal according to trigger signal, makes radiofrequency signal
Tranmitting frequency and electronic tag 20 frequency band match.
Data exchange unit 103, for carrying out data exchange with electronic tag 20.
Preferably, reader 1 further includes:
Second identification code acquiring unit 104b, the identification code for obtaining the transmission of rf terminal 2.
Hash processing unit 105b, for generating cryptographic Hash according to identification code, and according to cryptographic Hash from being stored with equipment class
Type band information corresponding with cryptographic Hash is matched in the database of band information correspondence.
Preferably, Hash processing unit 105b may include Hash generation unit and Hash matching unit, wherein:
Hash generation unit is used to generate cryptographic Hash according to identification code.
Hash matching unit is used for according to cryptographic Hash from the database for being stored with device type and band information correspondence
The corresponding band information of middle matching cryptographic Hash.
Second frequency judging unit 106b, for when being matched to band information corresponding with cryptographic Hash, judging that frequency range is believed
Whether breath matches with the current tranmitting frequency of radiofrequency signal.
Second trigger signal generation unit 107b, for being mismatched when band information and the current tranmitting frequency of radiofrequency signal
When, the trigger signal of the adjustment current tranmitting frequency of radiofrequency signal is generated according to band information.
Preferably, reader 1 further includes:
Radio frequency transmitting unit 108 is used for after electronic tag 20 enters the identification range of radiofrequency signal, to electronic tag 20
It includes the identification code of rf terminal 2 and the current tranmitting frequency of radiofrequency signal to send certification request information and authentication code, authentication code.
Encrypted result acquiring unit 109, for obtaining after electronic tag 20 receives certification request information, according to default plus
The encrypted result obtained after operation is encrypted to authentication code in close algorithm.
Checking request unit 110 is verified for encrypted result and authentication code to be sent to server 3.
Verification result acquiring unit 111 is verified encrypted result according to authentication code for obtaining server 3
Verification result.
Verification result judging unit 112, for when verification result is to be verified, data friendship to be carried out with electronic tag 20
It changes.
Preferably, reader 1 further includes:
Third identification code acquiring unit 113, for when verification result be verification not by when, according to the knowledge of rf terminal 2
Other code obtains the unique identifier of electronic tag 20.
First identification code judging unit 114 will lose for being updated to the corresponding authentication failed number of unique identifier
Number is lost to increase once.
Alarm unit 115 includes electronics for when the frequency of failure reaches preset times, being sent to preset alarm terminal
The warning message of 20 unique identifier of label.
A kind of radio frequency signal communication system provided in this embodiment is generated according to the identification code of acquisition by reader 1 and is breathed out
Value is wished, and directly matches the band information of corresponding rf terminal 2 from database according to cryptographic Hash, can quickly obtain and penetrate
The band information of frequency terminal 2 can simplify the process analyzed identification code, improve the speed and efficiency of identification, convenient for reading
The frequency for writing the radiofrequency signal of the adjustment transmitting of device 1, can make reader 1 support the rf terminal 2 of different frequency, make reader 1
Data exchange can be carried out with the electronic tag 20 of different frequency, improve the scope of application of reader 1, and in adjustment frequency
Afterwards, it is authenticated by the identity to rf terminal 2, the safety of radio communication can be improved, and record its certification that fails
Number can effectively remind user to update or safeguard the undesirable rf terminal of discrimination 2.
As shown in fig. 7, for a kind of network topological diagram of the another embodiment of radio frequency signal communication system of the present invention, this implementation
A kind of radio frequency signal communication system that example provides, including server 3, multiple readers 1 and multiple rf terminals 2, each reader 1
It is carried out wireless communication by radiofrequency signal between each rf terminal 2, Ethernet can be passed through between reader 1 and server 3
Etc. being communicated, after rf terminal 2 is close to reader 1, after having executed preceding frequency modulation, verification process, rf terminal 2 is to reading
It writes device 1 and sends the signaling that request data exchanges, signaling is transmitted to server 3 by reader 1.
In another embodiment, the present invention also provides a kind of computer readable storage medium, including instruction, work as described instruction
When running on computers, the computer is made to execute the method described in the various embodiments described above.Reader should be understood that in this specification
Description in, reference term " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " etc.
Description means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in the present invention at least
In one embodiment or example.In the present specification, schematic expression of the above terms need not be directed to identical implementation
Example or example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments or example
In can be combined in any suitable manner.In addition, without conflicting with each other, those skilled in the art can will be in this specification
The different embodiments or examples of description and the feature of different embodiments or examples are combined.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is set, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.
The unit illustrated as separating component may or may not be physically separated, and be shown as unit
Component may or may not be physical unit, you can be located at a place, or may be distributed over multiple networks
On unit.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the embodiment of the present invention
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, can also be during two or more units are integrated in one unit.It is above-mentioned integrated
The form that hardware had both may be used in unit is realized, can also be realized in the form of SFU software functional unit.
It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product
To be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention substantially or
Say that all or part of the part that contributes to existing technology or the technical solution can embody in the form of software products
Out, which is stored in a storage medium, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes all or part of each embodiment method of the present invention
Step.And storage medium above-mentioned includes:USB flash disk, read-only memory (ROM, Read-OnlyMemory), is deposited mobile hard disk at random
The various media that can store program code such as access to memory (RAM, RandomAccessMemory), magnetic disc or CD.
More than, specific implementation mode only of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of radio frequency signal communication method, which is characterized in that including:
Trigger signal is generated, includes the band information of electronic tag in the trigger signal;
The tranmitting frequency that radiofrequency signal is adjusted according to the trigger signal makes the tranmitting frequency of the radiofrequency signal and the electronics
The frequency band match of label;
Data exchange is carried out with the electronic tag.
2. radio frequency signal communication method according to claim 1, which is characterized in that the generation trigger signal is specific to wrap
It includes:
The identification code that rf terminal is sent is obtained, the frequency range letter of the electronic tag of the rf terminal is obtained according to the identification code
Breath;
Judge whether the band information matches with the current tranmitting frequency of radiofrequency signal;
When the band information and the current tranmitting frequency of the radiofrequency signal mismatch, is generated and adjusted according to the band information
The trigger signal of the current tranmitting frequency of radiofrequency signal.
3. radio frequency signal communication method according to claim 2, which is characterized in that the knowledge for obtaining rf terminal and sending
Other code, the band information of the electronic tag of the rf terminal is obtained according to the identification code, is specifically included:
The identification code that rf terminal is sent is obtained, the identification code includes the device type information of the rf terminal;
The device type of the rf terminal is identified according to the identification code;
According to the device type of the rf terminal, from the database of correspondence for being stored with device type and band information
Matching obtains the band information of the electronic tag corresponding to the device type of the rf terminal.
4. radio frequency signal communication method according to claim 2 or 3, which is characterized in that it is described with the electronic tag into
Before row data exchange, further include:
After the electronic tag enters the identification range of the radiofrequency signal, certification request information is sent to the electronic tag
And authentication code, the authentication code include the identification code of the rf terminal and the current tranmitting frequency of the radiofrequency signal;
It obtains after the electronic tag receives the certification request information, the authentication code is carried out according to predetermined encryption algorithm
The encrypted result obtained after cryptographic calculation;
The encrypted result and the authentication code are sent to server to verify;
Obtain the verification result that the server verifies the encrypted result according to the authentication code;
When the verification result is to be verified, data exchange is carried out with the electronic tag.
5. radio frequency signal communication method according to claim 4, which is characterized in that further include:
When the verification result be verification not by when, the electronic tag is obtained only according to the identification code of the rf terminal
One identification code;
The corresponding authentication failed number of the unique identifier is updated;
When the frequency of failure reaches preset times, it includes the electronic tag unique identification to be sent to preset alarm terminal
The warning message of code.
6. a kind of radio frequency signal communication system, which is characterized in that including:Reader and electronic tag, wherein the reader packet
It includes:
Trigger signal acquiring unit includes the frequency range of the electronic tag for generating trigger signal, in the trigger signal
Information;
Tranmitting frequency adjustment unit, the tranmitting frequency for adjusting radiofrequency signal according to the trigger signal make the radio frequency believe
Number tranmitting frequency and the electronic tag frequency band match;
Data exchange unit, for carrying out data exchange with the electronic tag.
7. radio frequency signal communication system according to claim 6, which is characterized in that the reader further includes:
First identification code acquiring unit, the identification code for obtaining rf terminal transmission, the identification code includes the radio frequency
The device type information of terminal;
Band information analytic unit, the band information of the electronic tag for obtaining the rf terminal according to the identification code;
First frequency judging unit, for judging whether the current tranmitting frequency of the band information and radiofrequency signal matches;
First trigger signal generation unit, for being mismatched when the band information and the current tranmitting frequency of the radiofrequency signal
When, the trigger signal for adjusting the current tranmitting frequency of radiofrequency signal is generated according to the band information.
8. radio frequency signal communication system according to claim 7, which is characterized in that the identification code includes the radio frequency
The device type information of terminal, the band information analytic unit include:
Device type identifies subelement, the device type for identifying the rf terminal according to the identification code;
Band information identifies subelement, for according to the device type of the rf terminal, from being stored with device type and frequency range
Matching obtains the frequency range of the electronic tag corresponding to the device type of the rf terminal in the database of the correspondence of information
Information.
9. radio frequency signal communication system according to claim 7 or 8, which is characterized in that the reader further includes:
Radio frequency transmitting unit is used for after the electronic tag enters the identification range of the radiofrequency signal, to the electronics mark
It signs and issues and send certification request information and authentication code, the authentication code includes the identification code of the rf terminal and the radiofrequency signal
Current tranmitting frequency;
Encrypted result acquiring unit, for obtaining after the electronic tag receives the certification request information, according to default plus
The encrypted result obtained after operation is encrypted to the authentication code in close algorithm;
Checking request unit is verified for the encrypted result and the authentication code to be sent to server;
Verification result acquiring unit to the encrypted result verify for obtaining the server according to the authentication code
The verification result arrived;
Verification result judging unit, for when the verification result is to be verified, data friendship to be carried out with the electronic tag
It changes.
10. a kind of computer readable storage medium, which is characterized in that including instruction, when described instruction is run on computers,
The computer perform claim is set to require the method described in any one of 1 to 5.
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