CN105578497B - A kind of detection method and relevant device of NFC snooping equipment - Google Patents
A kind of detection method and relevant device of NFC snooping equipment Download PDFInfo
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- CN105578497B CN105578497B CN201510209296.2A CN201510209296A CN105578497B CN 105578497 B CN105578497 B CN 105578497B CN 201510209296 A CN201510209296 A CN 201510209296A CN 105578497 B CN105578497 B CN 105578497B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The present embodiments relate to fields of communication technology, disclose the detection method and relevant device of a kind of NFC snooping equipment.Wherein, this method comprises: NFC detection device can broadcast detection signal first, when detecting the NFC snooping equipment of specified type, judge whether the feedback information that the multiple NFC snooping equipments for receiving the specified type simultaneously are sent, if it is, it will be for each bit information in the feedback information, using the bit information as signature identification, and broadcast the broadcast message including this feature mark, when receive target NFC snooping equipment respond the broadcast message transmission object feedback information when, target NFC snooping equipment will be identified according to the device identification that the object feedback information includes, until identifying all NFC snooping equipments of the specified type, the NFC snooping equipment of next type is detected according still further to default detection ordering.Through the embodiment of the present invention, the detection efficiency to NFC snooping equipment can be improved.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of detection method and relevant device of NFC snooping equipment.
Background technique
Near-field communication (Near Field Communication, NFC) is a kind of radio technology of short distance high frequency.With
The rapid development of NFC technique, support NFC function equipment (abbreviation NFC device, such as smart phone) can it is relatively small away from
From carrying out data exchange in range.In general, NFC device can set a polling cycle, it can sequence detection in each polling cycle
The equipment of the type of skill such as NFC-A, NFC-B, NFC-F and NFC-V of surrounding, and when the detection of every kind of NFC technique type
Between be usually fixed.NFC snooping equipment refers to the NFC device of the detection signal for listening to the sending of NFC detection device；NFC
Detection device, which refers to for issuing detection signal, detects the NFC device of surrounding NFC snooping equipment.
Therefore, if may just will appear detection in the detection environment of multiple NFC snooping equipments of the type of skill of the same race
Conflict and causes to be unable to complete the identification to all NFC snooping equipments in the type of skill of the same race in a polling cycle.
Such as: assuming that the polling cycle of NFC detection device is 200ms, the detection time of the NFC snooping equipment of every kind of type of skill is
5ms, and assume that having the type of skill around the NFC detection device is multiple NFC snooping equipments of NFC-A.So detecting
When the NFC snooping equipment of the NFC-A type of skill, it is possible to which the multiple NFC snooping equipments that will appear in the NFC-A type of skill are same
When to the NFC detection device send feedback information so that the information that the NFC detection device receives is that multiple feedback informations are mutual
It is staggeredly formed, so that being unable to accurate discrimination goes out each feedback information.Therefore, NFC detection device is possible will be 5ms's
All NFC snooping equipments of the NFC-A type of skill can not be identified in time, it can only be until next polling cycle arrives
It is further continued for detect the NFC snooping equipment of the NFC-A type of skill.
If it is support card analog functuion NFC detection device when detecting NFC snooping equipment, can in a polling cycle
It is interior to set more than the time of half polling cycle as the card mold quasi- working time, it can thus waste a large amount of time waiting next time
The arrival of polling cycle.As it can be seen that in the same type of skill there are in the detection environment of multiple NFC snooping equipments,
It will be fixed due to the detection time of the NFC snooping equipment of each type of skill and lead to the mistake in detection NFC snooping equipment
Detection efficiency in journey reduces.
Summary of the invention
The embodiment of the invention discloses the detection methods and relevant device of a kind of NFC snooping equipment, can be improved and detect to NFC
Listen the detection efficiency of equipment.
The embodiment of the invention discloses a kind of detection method of NFC snooping equipment, this method may include:
Broadcast the detection signal for detecting near-field communication NFC snooping equipment；
When according to the NFC snooping equipment of default detection ordering detection specified type, judge whether to receive simultaneously described
The feedback information that multiple NFC snooping equipments of specified type are sent for the detection signal, the feedback information carry ratio
Special information；
If so, being directed to each described bit information, using the bit information as signature identification, and it includes described for broadcasting
The broadcast message of signature identification；
It receives the target NFC snooping equipment in the NFC snooping equipment of the specified type and responds the broadcast message transmission
Object feedback information, wherein the object feedback information includes the signature identification and the target NFC snooping equipment
Device identification；
The target NFC snooping equipment is identified according to the device identification；
When identifying all NFC snooping equipments of the specified type, next type is detected according to default detection ordering
NFC snooping equipment.
Correspondingly, the embodiment of the invention discloses a kind of NFC detection device, which may include:
First radio unit, for broadcasting the detection signal for detecting near-field communication NFC snooping equipment；
First judging unit, for when according to the NFC snooping equipment of default detection ordering detection specified type, judgement to be
The feedback information that multiple NFC snooping equipments that are no while receiving the specified type are sent for the detection signal, it is described
Feedback information carries bit information；
Second radio unit is when being, for ratio described in each for the judging result in first judging unit
Special information using the bit information as signature identification, and broadcasts the broadcast message including the signature identification；
Receiving unit, described in the target NFC snooping equipment response in the NFC snooping equipment for receiving the specified type
The object feedback information that broadcast message is sent, wherein the object feedback information includes the signature identification and the target
The device identification of NFC snooping equipment；
Recognition unit, for identifying the target NFC snooping equipment according to the device identification；
Detection unit, when for identifying all NFC snooping equipments of the specified type in the recognition unit, according to
Default detection ordering detects the NFC snooping equipment of next type.
The implementation of the embodiments of the present invention has the following beneficial effects:
In the embodiment of the present invention, NFC detection device can broadcast the detection signal for detecting NFC snooping equipment first,
When detecting the NFC snooping equipment of specified type, the multiple NFC snooping equipments hair for receiving the specified type simultaneously is determined whether
The feedback information sent, if so, will be for each bit information in the feedback information, using the bit information as feature
Mark, and broadcast the broadcast message including this feature mark.Broadcast message transmission is responded when receiving target NFC snooping equipment
Object feedback information when, will identify target NFC snooping equipment according to the device identification for including in the object feedback information,
And after identifying all NFC snooping equipments of the specified type, just next type can be detected according to default detection ordering
NFC snooping equipment.Through the embodiment of the present invention, NFC detection device can be identified when detecting certain type of NFC snooping equipment
The NFC device for detecting next type after all NFC devices of the type again out, in this way can be to avoid multiple due to receiving
Feedback information and cause to identify same type of all NFC snooping equipments within the set time, to improve to NFC
The detection efficiency of snooping equipment.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of flow diagram of the detection method of NFC snooping equipment disclosed by the embodiments of the present invention；
Fig. 2 is the flow diagram of the detection method of another kind NFC snooping equipment disclosed by the embodiments of the present invention；
Fig. 3 is a kind of structural schematic diagram of NFC detection device disclosed by the embodiments of the present invention；
Fig. 4 is the structural schematic diagram of another kind NFC detection device disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses the detection methods and relevant device of a kind of NFC snooping equipment, can be improved and detect to NFC
Listen the detection efficiency of equipment.It is described in detail separately below.
Referring to Fig. 1, Fig. 1 is a kind of process signal of the detection method of NFC snooping equipment disclosed by the embodiments of the present invention
Figure.Wherein, method shown in FIG. 1 can be applied to smart phone (such as Android phone, iOS mobile phone), tablet computer, the palm
There is the terminal of NFC function to set by upper computer, mobile internet device (MobileInternetDevices, MID) and PAD etc.
In standby.As shown in Figure 1, the detection method of the NFC snooping equipment may comprise steps of:
S101, NFC detection device broadcast the detection signal for detecting NFC snooping equipment.
In the embodiment of the present invention, NFC snooping equipment may include: smart phone (such as Android phone, iOS mobile phone),
Tablet computer, palm PC, mobile internet device (MobileInternetDevices, MID) and PAD etc. have NFC function
The terminal device of energy, the embodiment of the present invention is without limitation.
In the embodiment of the present invention, NFC detection device when carrying out data exchange, can detect first around it is existing other
NFC device, referred to as NFC snooping equipment.Therefore, NFC detection device can broadcast a detection signal first, which is used for
Indicate that the NFC detection device needs to detect the NFC snooping equipment of surrounding.
S102, the NFC detection device are when according to the NFC snooping equipment of default detection ordering detection specified type, judgement
The multiple NFC snooping equipments for whether receiving the specified type simultaneously are directed to the feedback information that the detection signal is sent, if so, holding
Row step S103；If it is not, executing step S106.
In the embodiment of the present invention, the type of skill of NFC device can be divided into NFC-A, NFC-B, NFC-F, NFC-V and its
His type, therefore, NFC detection device can preset a detection ordering, thus may be used before detecting NFC snooping equipment
Successively to detect the NFC snooping equipment of different technologies type according to preset detection ordering.Default detection ordering can be
First NFC-A type, then NFC-B type, then NFC-F type, then NFC-V type, last other types, still, each
The default detection ordering of NFC detection device can be different, and the embodiment of the present invention is without limitation.
In the embodiment of the present invention, listens to and set in the NFC of detection specified type according to default detection ordering when NFC detection device
When standby, the NFC snooping equipment of the specified type will send feedback information for the detection signal received and set to NFC detection
It is standby, bit information is carried in feedback information.It is received in synchronization by this accordingly, it is possible to just will appear NFC detection device
The feedback information that multiple NFC snooping equipments of specified type are sent, so, NFC detection device will real-time judge whether simultaneously
Receive the feedback information that multiple NFC snooping equipments of the specified type are sent.If receiving the more of the specified type simultaneously
The feedback information that a NFC snooping equipment is sent, which will be directed to each bit information, by the bit information
As signature identification, and broadcast the broadcast message including this feature mark；If not occurring receiving the specified type simultaneously
The case where feedback information that multiple NFC snooping equipments are sent, which will detect this according to default detection ordering and refer to
Determine the NFC snooping equipment of next type of type.
S103, judge the multiple NFC snooping equipments for receiving the specified type simultaneously for the detection in step S102
When the feedback information that signal is sent, which is directed to each bit information, using the bit information as feature mark
Know, and broadcasts the broadcast message including this feature mark.
In the embodiment of the present invention, there are two kinds of forms, i.e. " 0 " and " 1 " for bit information, therefore, when judging to receive simultaneously
To the specified type multiple NFC snooping equipments for the detection signal send feedback information when, which will
A kind of bit information is chosen from bit information as signature identification, is then broadcasted.Therefore, this feature mark can be
" 0 " is also possible to " 1 ".
Specifically, not only including this feature mark in the broadcast message that NFC detection device is broadcasted, can also include
This feature mark is the location of in feedback information etc., and the embodiment of the present invention is without limitation.
S104, the NFC detection device receive the response of the target NFC snooping equipment in the NFC snooping equipment of the specified type
The object feedback information that the broadcast message is sent.
In the embodiment of the present invention, when NFC snooping equipment receives the broadcast including signature identification of NFC detection device broadcast
After information, whether it includes this feature mark which judges in the feedback information of itself, if including,
Feedback information is sent again to NFC detection device.And NFC detection device only receives the specified type when receiving feedback information
Target NFC snooping equipment send object feedback information.Therefore, which includes the broadcast of NFC detection device
Signature identification and target NFC snooping equipment device identification.
For example, when the signature identification for including in broadcast message is " 1 ", this feature mark is locating in feedback information
Position is the first data bit, then, after NFC snooping equipment receives broadcast message, judge the first of its feedback information
Whether the data in data bit are consistent with this feature mark, if unanimously, its feedback information being then sent to NFC detection and is set
It is standby.So NFC detection device just can only receive the feedback information that the NFC snooping equipment of the specified type is sent, the feedback information
In include the NFC snooping equipment device identification, i.e. the NFC snooping equipment is referred to as target NFC snooping equipment, claims its feedback letter
Breath is object feedback information, and therefore, the data in the first data bit in the object feedback information are consistent with signature identification, so
NFC detection device can receive correct device identification according to the object feedback information.
S105, the NFC detection device identify that target NFC is listened to according to the device identification that the object feedback information includes and set
It is standby.
In the embodiment of the present invention, as the target NFC in the NFC snooping equipment that NFC detection device receives the specified type
After snooping equipment responds the object feedback information of broadcast message transmission, which will believe according to object feedback
The device identification for including in breath identifies target NFC snooping equipment.
Correspondingly, can broadcast the message again after the NFC detection device successfully identifies target NFC snooping equipment, lead to
Know that other NFC snooping equipments in addition to target NFC snooping equipment send feedback information again, then repeats step S102
~step S105, until the feedback information sent according to NFC snooping equipment identifies all NFC snooping equipments of the specified type
Until position.
S106, the NFC detection device detect the NFC snooping equipment of next type according to default detection ordering.
In the embodiment of the present invention, NFC detection device only when having identified all NFC snooping equipments of the specified type,
The NFC snooping equipment of next type of the specified type can be just detected according to default detection ordering.Therefore, NFC detection device exists
When detecting the NFC snooping equipment of next type, the step of execution with detect the specified type NFC snooping equipment the step of phase
Together, the embodiment of the present invention repeats no more.
It should be noted that the NFC detection device can be managed when identifying all NFC snooping equipments of the specified type
Xie Wei, NFC detection device do not occur receiving simultaneously in the feedback information that the NFC snooping equipment for receiving the specified type is sent
When the case where feedback information that multiple NFC snooping equipments of the specified type are sent or the NFC detection device has identified
When all NFC snooping equipments of the specified type, which detects the NFC of next type according to default detection ordering
Snooping equipment.
In the embodiment of the present invention, NFC detection device can broadcast the detection signal for detecting NFC snooping equipment first,
When detecting the NFC snooping equipment of specified type, the multiple NFC snooping equipments hair for receiving the specified type simultaneously is determined whether
The feedback information sent, if so, will be for each bit information in the feedback information, using the bit information as feature
Mark, and broadcast the broadcast message including this feature mark.Broadcast message transmission is responded when receiving target NFC snooping equipment
Object feedback information when, will identify target NFC snooping equipment according to the device identification for including in the object feedback information,
And after identifying all NFC snooping equipments of the specified type, just next type can be detected according to default detection ordering
NFC snooping equipment.Through the embodiment of the present invention, NFC detection device can be identified when detecting certain type of NFC snooping equipment
The NFC device for detecting next type after all NFC devices of the type again out, in this way can be to avoid multiple due to receiving
Feedback information and cause to identify same type of all NFC snooping equipments within the set time, so as to improve pair
The detection efficiency of NFC snooping equipment.
Referring to Fig. 2, the process that Fig. 2 is the detection method of another kind NFC snooping equipment disclosed by the embodiments of the present invention is shown
It is intended to.Wherein, method shown in Fig. 2 can be applied to smart phone (such as Android phone, iOS mobile phone), tablet computer,
Palm PC, mobile internet device (MobileInternetDevices, MID) and PAD etc. have the terminal of NFC function
In equipment.As shown in Fig. 2, the detection method of the NFC snooping equipment may comprise steps of:
S201, NFC detection device broadcast the detection signal for detecting near-field communication NFC snooping equipment.
S202, the NFC detection device are when according to the NFC snooping equipment of default detection ordering detection specified type, judgement
The multiple NFC snooping equipments for whether receiving the specified type simultaneously are directed to the feedback information that the detection signal is sent, if so, holding
Row step S203；If it is not, executing step S208.
As a kind of feasible embodiment, which judges whether to receive the more of the specified type simultaneously
A NFC snooping equipment can be with for the concrete mode for the feedback information that the detection signal is sent are as follows:
The NFC snooping equipment that step 11) the NFC detection device receives the specified type sends anti-for the detection signal
Feedforward information, wherein the feedback information is made of multiple bits, the corresponding bit information of each bit；
Step 12) the NFC detection device judge on same bit whether and meanwhile receive a variety of bit informations；
For step 13) when judging on same bit while receiving a variety of bit informations, the NFC detection device is true
The feedback information that multiple NFC snooping equipments that are fixed while receiving the specified type are sent for the detection signal.
In the embodiment of the present invention, NFC snooping equipment, which sends feedback information, to be sent in the form of bit, a bit
A bit information is corresponded to, the bit information on all bits forms a feedback information.Therefore, NFC detection device receives
The specified type NFC snooping equipment for the detection signal send feedback information be made of multiple bits.Such as open
Beginning position, check bit, data bit and stop bits etc., the title embodiment of the present invention of bit is without limitation.
For example, the bit for the feedback information that NFC snooping equipment is sent is by 1 start bit, 1 check bit, 4
Data bit and 1 stop bits composition, and the bit information on each bit can may be " 1 " for " 0 ", wherein
Bit information on start bit, check bit and stop bits is usually fixation, and therefore, NFC detection device can generally be judged
Receive the feedback information that multiple snooping equipments are sent from data bit the result is that judge.
S203, judge the multiple NFC snooping equipments for receiving the specified type simultaneously for the detection in step S202
When the feedback information that signal is sent, which is directed to each bit information, using the bit information as feature mark
Know, and broadcasts the broadcast message including this feature mark.
Specifically, NFC detection device is directed to each bit information, it is understood that using the bit information as signature identification
Are as follows: it, can be from the bit after NFC detection device is judged on some bit while receiving a variety of bit informations
On a variety of bit informations in choose target bits information using as signature identification, and in addition to including this feature in broadcast message
Except mark, the location information and the bit information before the bit that also will record the locating bit of this feature mark.
For example, if in synchronization, the feedback information of the A equipment transmission in the NFC snooping equipment of specified type
It is 1101011, and the feedback information that B device is sent is 1101101, then NFC detection device is receiving the 5th bit
When, " 0 " and " 1 " can be received together, thus the accurate data of the bit information on the bit cannot be identified, at this point,
NFC detection device is assured that while having received the feedback information that multiple NFC snooping equipments of the specified type are sent.Cause
This, which can choose bit information such as " 1 " from the 5th bit and be used as feature mark in " 0 " and " 1 "
Know, NFC detection device broadcast includes that signature identification is " 1 ", and this feature identifies on the 5th bit, and the first bit
Bit information on to the 4th bit is respectively the broadcast message of " 1 ", " 1 ", " 0 " and " 1 ".
S204, the NFC detection device receive the response of the target NFC snooping equipment in the NFC snooping equipment of the specified type
The object feedback information that the broadcast message is sent.
In the embodiment of the present invention, object feedback information includes the signature identification and target NFC of NFC detection device broadcast
The device identification of snooping equipment.Wherein, object feedback information include signature identification it is to be understood that object feedback information finger
Determine bit information on bit and this feature mark be consistent, and the bit information before the designated bit position also with broadcast message
In include content it is consistent.Wherein, the designated bit position of object feedback information is reception while judging in step S202
To the bit of multiple bit informations.
For example, if the bit of feedback information has seven, the content for including in broadcast message, which is characterized, to be identified as
" 1 ", and this feature mark on the 5th bit, and the bit information on the first bit to the 4th bit be respectively " 1 ",
" 1 ", " 0 " and " 1 ", then the first bit to the 5th bit in the object feedback information that target NFC snooping equipment is sent
Bit information on position is just necessary for 11011, and the bit information on the 6th bit and the 7th bit is in this reception
It is without restriction in the step of feedback information.
S205, the NFC detection device identify that target NFC is listened to according to the device identification that the object feedback information includes and set
It is standby.
S206, the NFC detection device judge to detect whether the detection time of the NFC snooping equipment of the specified type is more than most
Big detection time, if so, executing step S207；If it is not, executing step S202.
In the embodiment of the present invention, when the NFC detection device is successfully known according to the device identification that object feedback information includes
Chu not be after target NFC snooping equipment, judging the detection time used in the NFC snooping equipment for detecting the specified type is
No has been more than maximum detection time.If detection time is not above maximum detection time, but the unidentified complete specified type
When all NFC snooping equipments, which will continue to receive the unidentified NFC snooping equipment come out in the specified type
The feedback information of transmission, and judge whether the feedback information that the multiple NFC snooping equipments for receiving the specified type simultaneously are sent,
Repeat step S202~step S206；If detection time is more than maximum detection time, even if the NFC detection device is not
All snooping equipments of the specified type are identified, which must must also perform the next step suddenly, that is, judge according to pre-
If whether detection ordering completes the detection work to all types of NFC snooping equipments.
It should be noted that NFC detection device judge whether to have identified all NFC snooping equipments of the specified type according to
According to being: in the step of judging whether feedback information that the multiple NFC snooping equipments for receiving the specified type simultaneously are sent, sentencing
When breaking out while receiving the feedback information of multiple NFC snooping equipments transmission of the specified type, the NFC detection device
Judge that there is also multiple NFC snooping equipments to need to identify in the NFC snooping equipment of the specified type；And if it is judged that not same
When receive the specified type multiple NFC snooping equipments send feedback information when, the NFC detection device it may determine that go out
The NFC snooping equipment of the specified type is identified complete, can execute and detect according to the NFC that default detection ordering detects next type
The step of listening equipment.Wherein, maximum detection time is not necessarily fixed, may be for different types of NFC snooping equipment
Detection, maximum detection time set by the NFC detection device can be different, i.e. dynamic change.
For example, the polling cycle of NFC detection device is 200ms, and card mold intends the working time for 150ms, then detecting
The time of NFC snooping equipment only has 50ms.The NFC detection device is used when detecting the NFC snooping equipment of NFC-A type
Detection time be 8ms；And when detecting the NFC snooping equipment of NFC-B type, it is set due to being listened in the NFC of detection the type
Often occurs while receiving the case where feedback information that multiple NFC snooping equipments are sent when standby, then maximum detection time
It can be set as 12ms；Then when detecting the NFC snooping equipment of NFC-F type, also often occur while receiving multiple
The case where feedback information that NFC snooping equipment is sent, and maximum detection time is provided that 16ms；In detection NFC-V type
When NFC snooping equipment, the detection time used is 10ms, then when other kinds of NFC snooping equipment, even if there is also simultaneously
The case where receiving the feedback information that multiple NFC snooping equipments are sent, but maximum detection time is also only 4ms.
S207, when step S206 judges that the detection time is more than maximum detection time, NFC detection device judgement is pressed
All types of NFC snooping equipments whether are detected according to default detection ordering, if it is not, step S208 is executed, if so, terminating this stream
Journey.
In the embodiment of the present invention, when judging that the detection time is more than maximum detection time, which will
Further judge all types of NFC snooping equipments whether have been detected according to default detection ordering.For example, when specified type
When NFC snooping equipment is NFC-A type, after the NFC snooping equipment for having detected NFC-A type, the NFC detection device need into
The NFC snooping equipment of one step detection NFC-B type；And if detected when the NFC snooping equipment of specified type is other types
After other kinds of NFC snooping equipment, the NFC detection device otherwise wait the polling cycle end or enter card mold
Quasi- operating mode, in embodiments of the present invention, it can be understood as terminate this process.
S208, the NFC snooping equipment that next type is detected according to default detection ordering.
In the embodiment of the present invention, NFC detection device only has when all NFC snooping equipments for having identified the specified type, or
Person judge not and meanwhile receive the specified type multiple NFC snooping equipments send feedback information, or judge according to
When default detection ordering has not detected all types of NFC snooping equipments, which just can be according to default detection ordering
Detect the NFC snooping equipment of next type.
As a kind of feasible embodiment, above-mentioned NFC detection device detection NFC snooping equipment is the detection with bit
Mechanism detection, if detecting NFC snooping equipment with the testing mechanism of time slot, which broadcasts detection letter in first time
Number when, will distribute this polling cycle receive feedback information non-slotted channel, and each NFC snooping equipment receiving detection
After signal, a non-slotted channel will be arbitrarily chosen from the non-slotted channel of distribution and sends feedback information, then referring in detection
When determining the NFC snooping equipment of type, it just will appear the identical time slot letter of multiple NFC snooping equipment simultaneous selections of the specified type
Road sends feedback information, and therefore, NFC detection device is just not processed for the feedback information that the non-slotted channel receives.On the contrary
, if it is judged that being sent out in multiple NFC snooping equipments that synchronization does not receive the specified type using same non-slotted channel
When the feedback information sent, the NFC snooping equipment of each specified type will be successively identified, until detection time reaches maximum
Until detection time.Certainly, this maximum detection time is not fixed, can detect NFC according to current polling cycle and detect
The used detection time of equipment institute is listened to adjust at any time, the embodiment of the present invention is without limitation.And if NFC detection device is being known
Not Chu current type all NFC snooping equipments when simultaneously, the not up to maximum detection time of the NFC snooping equipment of current type,
So the NFC detection device will terminate the operation of the detection to the NFC snooping equipment of current type, then can be according to default detection
The NFC snooping equipment of the lower type of sequence detection.
In the embodiment of the present invention, NFC detection device can broadcast the detection signal for detecting NFC snooping equipment first,
When detecting the NFC snooping equipment of specified type, the multiple NFC snooping equipments hair for receiving the specified type simultaneously is determined whether
The feedback information sent, if so, will be for each bit information in the feedback information, using the bit information as feature
Mark, and broadcast the broadcast message including this feature mark.Broadcast message transmission is responded when receiving target NFC snooping equipment
Object feedback information when, will identify target NFC snooping equipment according to the device identification for including in the object feedback information,
And after identifying all NFC snooping equipments of the specified type, just next type can be detected according to default detection ordering
NFC snooping equipment.Through the embodiment of the present invention, NFC detection device can be identified when detecting certain type of NFC snooping equipment
The NFC device for detecting next type after all NFC devices of the type again out, in this way can be to avoid multiple due to receiving
Feedback information and cause to identify same type of all NFC snooping equipments within the set time.Further, if
When detecting the NFC snooping equipment of specified type, the NFC snooping equipment of the specified type will soon identify completion, then, so that it may
To reduce the detection time for the NFC snooping equipment for detecting the specified type, when NFC snooping equipment to continue type after sensing
There are in the case where multiple NFC snooping equipments, there can be abundant detection time, so as to improve to NFC snooping equipment
Detection efficiency.
Referring to Fig. 3, Fig. 3 is a kind of structural schematic diagram of NFC detection device disclosed by the embodiments of the present invention.Wherein, Fig. 3
Shown in NFC detection device 300 may include smart phone (such as Android phone, iOS mobile phone), tablet computer, palm electricity
Brain, mobile internet device (MobileInternetDevices, MID) and PAD etc. have the terminal device of NFC function.Such as
Shown in Fig. 3, which may include with lower unit:
First radio unit 301, for broadcasting the detection signal for detecting NFC snooping equipment.
In the embodiment of the present invention, NFC snooping equipment may include: smart phone (such as Android phone, iOS mobile phone),
Tablet computer, palm PC, mobile internet device (MobileInternetDevices, MID) and PAD etc. have NFC function
The terminal device of energy, the embodiment of the present invention is without limitation.
In the embodiment of the present invention, NFC detection device 300 when carrying out data exchange, can detect first around it is existing its
His NFC device, referred to as NFC snooping equipment.Therefore, the first radio unit 301 can broadcast a detection signal, detection letter first
Number be used to indicate the NFC detection device 300 need to detect around NFC snooping equipment.
First judging unit 302, for sentencing when according to the NFC snooping equipment of default detection ordering detection specified type
The disconnected multiple NFC snooping equipments for whether receiving the specified type simultaneously are directed to the feedback information that the detection signal is sent.
In the embodiment of the present invention, the type of skill of NFC device can be divided into NFC-A, NFC-B, NFC-F, NFC-V and its
His type, therefore, NFC detection device 300 can preset a detection ordering, thus before detecting NFC snooping equipment
The NFC snooping equipment of different technologies type can be successively detected according to preset detection ordering.Default detection ordering can be with
It is first NFC-A type, then NFC-B type, then NFC-F type, then NFC-V type, last other types are still, each
The default detection ordering of a NFC detection device 300 can be different, and the embodiment of the present invention is without limitation.
In the embodiment of the present invention, when NFC of the NFC detection device 300 according to default detection ordering in detection specified type is detectd
When listening equipment, the NFC snooping equipment of the specified type will send feedback information for the detection signal received and detect to NFC
Equipment 300 carries bit information in feedback information.It is connect accordingly, it is possible to just will appear NFC detection device 300 in synchronization
It receives by the feedback information of multiple NFC snooping equipments transmission of the specified type, so, the first judging unit 302 will be real-time
Judge whether the feedback information that the multiple NFC snooping equipments for receiving the specified type simultaneously are sent.If receiving this simultaneously
The feedback information that multiple NFC snooping equipments of specified type are sent, the second radio unit 303 will be believed for each bit
Breath using the bit information as signature identification, and broadcasts the broadcast message including this feature mark；If not occurring receiving simultaneously
To the specified type multiple NFC snooping equipments send feedback information the case where, detection unit 306 will be according to default detection
The NFC snooping equipment of next type of the sequence detection specified type.
Second radio unit 303, for judging to receive the specified type simultaneously in above-mentioned first judging unit 302
When the feedback information that multiple NFC snooping equipments are sent for the detection signal, for each bit information, by the bit information
As signature identification, and broadcast the broadcast message including this feature mark.
In the embodiment of the present invention, there are two kinds of forms, i.e. " 0 " and " 1 " for bit information, therefore, when the first judging unit 302
When judging the feedback information that the multiple NFC snooping equipments for receiving the specified type simultaneously are sent for the detection signal, the
Two radio units 303 will choose a kind of bit information as signature identification from bit information, then be broadcasted.Therefore,
This feature mark can be " 0 ", be also possible to " 1 ".
Specifically, not only include this feature mark in the broadcast message that the second radio unit 303 is broadcasted, it can be with
Including this feature mark the location of in feedback information etc., the embodiment of the present invention is without limitation.
Receiving unit 304, the target NFC snooping equipment response in the NFC snooping equipment for receiving the specified type should
The object feedback information that broadcast message is sent.
In the embodiment of the present invention, receive the broadcast of second radio unit 303 when NFC snooping equipment includes signature identification
After broadcast message, whether it includes this feature mark which judges in the feedback information of itself, if packet
It includes, just sends feedback information again to NFC detection device 300.And receiving unit 304 is only received and is somebody's turn to do when receiving feedback information
The object feedback information that the target NFC snooping equipment of specified type is sent.Therefore, which includes the second broadcast
The device identification of signature identification and target NFC snooping equipment that unit 303 is broadcasted.
For example, when the signature identification for including in broadcast message is " 1 ", this feature mark is locating in feedback information
Position is the first data bit, then, after NFC snooping equipment receives broadcast message, judge the first of its feedback information
Whether the data in data bit are consistent with this feature mark, if unanimously, its feedback information is then sent to NFC detection device
300.So receiving unit 304 just can only receive the feedback information that the NFC snooping equipment of the specified type is sent, the feedback information
In include the NFC snooping equipment device identification, i.e. the NFC snooping equipment is referred to as target NFC snooping equipment, claims its feedback letter
Breath is object feedback information, and therefore, the data in the first data bit in the object feedback information are consistent with signature identification, so
Recognition unit 305 can receive correct device identification according to the object feedback information.
Recognition unit 305, the device identification for including according to the object feedback information identify that target NFC is listened to and set
It is standby.
In the embodiment of the present invention, as the target NFC in the NFC snooping equipment that receiving unit 304 receives the specified type
After snooping equipment responds the object feedback information of broadcast message transmission, recognition unit 305 will be according to object feedback information
In include device identification identify target NFC snooping equipment.
Correspondingly, NFC detection device 300 can again after recognition unit 305 successfully identifies target NFC snooping equipment
Secondary broadcast message notifies other NFC snooping equipments in addition to target NFC snooping equipment to send feedback information again, then weighs
Operation performed by multiple first judging unit 302, the second radio unit 303, receiving unit 304 and recognition unit 305, until
Recognition unit 305 identifies all NFC snooping equipments position of the specified type according to the feedback information that NFC snooping equipment is sent
Until.
Detection unit 306, for detecting the NFC snooping equipment of next type according to default detection ordering.
In the embodiment of the present invention, when recognition unit 305 identifies all NFC snooping equipments of the specified type, detection
Unit 306 can just detect the NFC snooping equipment of next type of the specified type according to default detection ordering.Therefore, detection is single
For member 306 when detecting the NFC snooping equipment of next type, NFC detection device 300 can repeat and detect the specified type
The operation of NFC snooping equipment, the embodiment of the present invention repeat no more.
It should be noted that recognition unit 305 is understood that when identifying all NFC snooping equipments of the specified type
For NFC detection device 300 is in the feedback information that the NFC snooping equipment for receiving the specified type is sent, the first judging unit
When the case where feedback information that the 302 multiple NFC snooping equipments for not judging to receive the specified type simultaneously are sent, or identification
When unit 305 has identified all NFC snooping equipments of the specified type, detection unit 306 just can be suitable according to default detection
Sequence detects the NFC snooping equipment of next type.
In the embodiment of the present invention, NFC detection device can broadcast the detection signal for detecting NFC snooping equipment first,
When detecting the NFC snooping equipment of specified type, the multiple NFC snooping equipments hair for receiving the specified type simultaneously is determined whether
The feedback information sent, if so, will be for each bit information in the feedback information, using the bit information as feature
Mark, and broadcast the broadcast message including this feature mark.Broadcast message transmission is responded when receiving target NFC snooping equipment
Object feedback information when, will identify target NFC snooping equipment according to the device identification for including in the object feedback information,
And after identifying all NFC snooping equipments of the specified type, just next type can be detected according to default detection ordering
NFC snooping equipment.Through the embodiment of the present invention, NFC detection device can be identified when detecting certain type of NFC snooping equipment
The NFC device for detecting next type after all NFC devices of the type again out, in this way can be to avoid multiple due to receiving
Feedback information and cause to identify same type of all NFC snooping equipments within the set time, so as to improve pair
The detection efficiency of NFC snooping equipment.
Referring to Fig. 4, Fig. 4 is a kind of structural schematic diagram of NFC detection device disclosed by the embodiments of the present invention.Wherein, Fig. 4
Shown in NFC detection device 300 be to optimize on the basis of NFC detection device 300 shown in Fig. 3.Such as Fig. 4 institute
Show, which may further include the following units:
Second judgment unit 307, for judge detect the specified type NFC snooping equipment detection time whether be more than
Maximum detection time.
In the embodiment of the present invention, when recognition unit 305 is successfully identified according to the device identification that object feedback information includes
Out after target NFC snooping equipment, second judgment unit 307 is judged to be made in the NFC snooping equipment for detecting the specified type
Whether detection time has been more than maximum detection time.If detection time is not above maximum detection time, but identifies single
When all NFC snooping equipments of first 305 unidentified complete specified types, the first judging unit 302 will continue to receive the specified class
The feedback information that the unidentified NFC snooping equipment come out is sent in type, and judge whether to receive the more of the specified type simultaneously
The feedback information that a NFC snooping equipment is sent, i.e. repeatedly the first judging unit 302, the second radio unit 303, receiving unit 304
And operation performed by recognition unit 305；If detection time is more than maximum detection time, even if recognition unit 305 is not known
All snooping equipments of the not complete specified type, which must must also terminate current operation, thus third
Judging unit 308 judges the detection work to all types of NFC snooping equipments whether is completed according to default detection ordering again.
It should be noted that third judging unit 308 judges whether to have identified all NFC snooping equipments of the specified type
Foundation be: the first judging unit 302 is judging whether that the multiple NFC snooping equipments for receiving the specified type simultaneously send
In the operation of feedback information, when judging the feedback information that the multiple NFC snooping equipments for receiving the specified type simultaneously are sent,
Third judging unit 308 is it may determine that there is also multiple NFC snooping equipments needs in the NFC snooping equipment of the specified type out
Identification；And if multiple NFC snooping equipments transmission of the specified type is judged not while being received to the first judging unit 302
When feedback information, third judging unit 308 it may determine that go out the specified type NFC snooping equipment it is identified complete, therefore,
Detection unit 306 can detect the NFC snooping equipment of next type according to default detection ordering.Wherein, maximum detection time
It is not necessarily fixed, it may be for the detection of different types of NFC snooping equipment, set by the NFC detection device most
Big detection time can be different, i.e. dynamic change.
For example, the polling cycle of NFC detection device 300 is 200ms, and card mold intends the working time for 150ms, then examining
The time for surveying NFC snooping equipment only has 50ms.The NFC detection device 300 is when detecting the NFC snooping equipment of NFC-A type, institute
The detection time used is 8ms；And when detecting the NFC snooping equipment of NFC-B type, due to being detectd in the NFC of detection the type
It listens and often occurs while receiving the case where feedback information that multiple NFC snooping equipments are sent when equipment, then maximum detection
Time can be set as 12ms；Then when detecting the NFC snooping equipment of NFC-F type, also often occur while receiving
The case where feedback information that multiple NFC snooping equipments are sent, and maximum detection time is provided that 16ms；In detection NFC-V class
When the NFC snooping equipment of type, the detection time used is 10ms, then when other kinds of NFC snooping equipment, even if there is also
The case where receiving the feedback information that multiple NFC snooping equipments are sent simultaneously, but maximum detection time is also only 4ms.
Third judging unit 308 is more than maximum detection time for going out the detection time in above-mentioned second judgment unit 307
When, judge all types of NFC snooping equipments whether have been detected according to default detection ordering.
In the embodiment of the present invention, when second judgment unit 307 judges that the detection time is more than maximum detection time, the
Three judging units 308 can further judge all types of NFC snooping equipments whether have been detected according to default detection ordering.Example
It such as,, should after the NFC snooping equipment for having detected NFC-A type when the NFC snooping equipment of specified type is NFC-A type
NFC detection device 300 needs further to detect the NFC snooping equipment of NFC-B type；And it is set if the NFC of specified type is listened to
It is standby when being other types, after having detected other kinds of NFC snooping equipment, the NFC detection device 300 or wait the poll
The end in period or entrance card mold intend operating mode.
As a kind of feasible embodiment, the first judging unit 302 may include receiving subelement 3021, execute son list
Member 3022 and determining subelement 3023, in which:
Receiving subelement 3021, for receiving the NFC snooping equipment of the specified type for the anti-of detection signal transmission
Feedforward information, wherein the feedback information is made of multiple bits, the corresponding bit information of each bit.
Execute subelement 3022, for judge on same bit whether and meanwhile receive a variety of bit informations.
Subelement 3023 is determined, for judging on same bit while receiving in above-mentioned execution subelement 3022
When a variety of bit informations, determines while the multiple NFC snooping equipments for receiving the specified type are sent for the detection signal
Feedback information.
In the embodiment of the present invention, NFC snooping equipment, which sends feedback information, to be sent in the form of bit, a bit
A bit information is corresponded to, the bit information on all bits forms a feedback information.Therefore, receiving subelement 3021 connects
The feedback information that the NFC snooping equipment for the specified type received is sent for the detection signal is made of multiple bits.Such as
Start bit, check bit, data bit and stop bits etc., the title embodiment of the present invention of bit is without limitation.
For example, the bit for the feedback information that NFC snooping equipment is sent is by 1 start bit, 1 check bit, 4
Data bit and 1 stop bits composition, and the bit information on each bit can may be " 1 " for " 0 ", wherein
Bit information on start bit, check bit and stop bits is usually fixation, and therefore, executing subelement 3022 can generally judge
Receive out the feedback information that multiple snooping equipments are sent from data bit the result is that judge.
As a kind of feasible embodiment, the second radio unit 303 is directed to each bit information, by the bit information
As signature identification it is to be understood that judge on some bit while receiving a variety of in the first judging unit 302
After bit information, the second radio unit 303 can from a variety of bit informations on the bit choose target bits information with
As signature identification, and in broadcast message other than including this feature mark, the locating ratio of this feature mark also will record
Bit information before the location information of special position and the bit.
For example, if in synchronization, the feedback information of the A equipment transmission in the NFC snooping equipment of specified type
It is 1101011, and the feedback information that B device is sent is 1101101, then the receiving subelement in the first judging unit 302
3021 when receiving the 5th bit, can receive " 0 " and " 1 " together, thus cannot identify on the bit
The accurate data of bit information, at this point, determining that subelement 3023 is assured that while having received the multiple of the specified type
The feedback information that NFC snooping equipment is sent.Therefore, the second radio unit 303 can be from " 0 " and " 1 " in the 5th bit
Bit information such as " 1 " is chosen as signature identification, it is " 1 " that NFC detection device broadcast, which includes signature identification, and this feature
Mark on the 5th bit, and the bit information on the first bit to the 4th bit be respectively " 1 ", " 1 ", " 0 " and
The broadcast message of " 1 ".
As a kind of feasible embodiment, the object feedback information that receiving unit 304 receives includes the second broadcast
The device identification of signature identification and target NFC snooping equipment that unit 303 is broadcasted.Wherein, object feedback information includes spy
Sign mark is it is to be understood that bit information and this feature mark on the designated bit position of object feedback information are consistent, and this refers to
Bit information before determining bit is also consistent with the content for including in broadcast message.Wherein, the specified ratio of object feedback information
Special position is the bit that multiple bit informations are received while judging in step S202.
For example, if the bit of feedback information has seven, the content for including in broadcast message, which is characterized, to be identified as
" 1 ", and this feature mark on the 5th bit, and the bit information on the first bit to the 4th bit be respectively " 1 ",
" 1 ", " 0 " and " 1 ", then the first bit to the 5th bit in the object feedback information that target NFC snooping equipment is sent
Bit information on position is just necessary for 11011, and the bit information on the 6th bit and the 7th bit is in this reception
It is without restriction in the operation of feedback information.
As a kind of feasible embodiment, detection unit 306 is detectd according to the NFC that default detection ordering detects next type
Listen the operation of equipment, it is possible to understand that are as follows: only when recognition unit 305 has identified all NFC snooping equipments of the specified type, or
The feedback information that multiple NFC snooping equipments of the specified type are sent is judged not while being received to the first judging unit of person 302,
Or third judging unit 308 is when judging not detected all types of NFC snooping equipments according to default detection ordering, detection
Unit 306 can just detect the NFC snooping equipment of next type according to default detection ordering.
As a kind of feasible embodiment, it is with bit that above-mentioned NFC detection device 300, which detects NFC snooping equipment,
Testing mechanism detection, if detecting NFC snooping equipment with the testing mechanism of time slot, the first radio unit 301 is in broadcast detection letter
Number when, will distribute this polling cycle receive feedback information non-slotted channel, and each NFC snooping equipment receiving detection
After signal, a non-slotted channel will be arbitrarily chosen from the non-slotted channel of distribution and sends feedback information, then referring in detection
When determining the NFC snooping equipment of type, it just will appear the identical time slot letter of multiple NFC snooping equipment simultaneous selections of the specified type
Road sends feedback information, and therefore, NFC detection device 300 is just not processed for the feedback information that the non-slotted channel receives.Phase
Anti-, if the first judging unit 302 judges that the multiple NFC snooping equipments for not receiving the specified type in synchronization make
When the feedback information sent with same non-slotted channel, recognition unit 305 will successively identify that the NFC of each specified type is detectd
Equipment is listened, until detection time reaches maximum detection time.Certainly, this maximum detection time is not fixed, can
It is adjusted at any time with detecting the used detection time of NFC snooping equipment institute according to current polling cycle, the embodiment of the present invention is not
It limits.And if recognition unit 305 in all NFC snooping equipments for identifying current type, and not up to current type
NFC snooping equipment maximum detection time, set then the NFC detection device 300 will terminate to listen to the NFC of current type
Standby detection operation, then can detect the NFC snooping equipment of next type according to default detection ordering.
In the embodiment of the present invention, NFC detection device can broadcast the detection signal for detecting NFC snooping equipment first,
When detecting the NFC snooping equipment of specified type, the multiple NFC snooping equipments hair for receiving the specified type simultaneously is determined whether
The feedback information sent, if so, will be for each bit information in the feedback information, using the bit information as feature
Mark, and broadcast the broadcast message including this feature mark.Broadcast message transmission is responded when receiving target NFC snooping equipment
Object feedback information when, will identify target NFC snooping equipment according to the device identification for including in the object feedback information,
And after identifying all NFC snooping equipments of the specified type, just next type can be detected according to default detection ordering
NFC snooping equipment.Through the embodiment of the present invention, NFC detection device can be identified when detecting certain type of NFC snooping equipment
The NFC device for detecting next type after all NFC devices of the type again out, in this way can be to avoid multiple due to receiving
Feedback information and cause to identify same type of all NFC snooping equipments within the set time.Further, if
When detecting the NFC snooping equipment of specified type, the NFC snooping equipment of the specified type will soon identify completion, then, so that it may
To reduce the detection time for the NFC snooping equipment for detecting the specified type, when NFC snooping equipment to continue type after sensing
There are in the case where multiple NFC snooping equipments, there can be abundant detection time, so as to improve to NFC snooping equipment
Detection efficiency.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (11)
1. a kind of detection method of NFC snooping equipment characterized by comprising
Broadcast the detection signal for detecting near-field communication NFC snooping equipment；
When according to the NFC snooping equipment of default detection ordering detection specified type, judge whether to receive simultaneously described specified
The feedback information that multiple NFC snooping equipments of type are sent for the detection signal, the feedback information carry bit letter
Breath；
If so, being directed to each described bit information, using the bit information as signature identification, and broadcasting includes the feature
The broadcast message of mark, the broadcast message further include that this feature identifies the position in the feedback information；
It receives the target NFC snooping equipment in the NFC snooping equipment of the specified type and responds the mesh that the broadcast message is sent
Mark feedback information, wherein the equipment that the object feedback information includes the signature identification and the target NFC snooping equipment
Mark；
The target NFC snooping equipment is identified according to the device identification；
When identifying all NFC snooping equipments of the specified type, the NFC of next type is detected according to default detection ordering
Snooping equipment.
2. the method according to claim 1, wherein described judge whether to receive the specified type simultaneously
The feedback information that multiple NFC snooping equipments are sent for the detection signal, comprising:
Receive the feedback information that the NFC snooping equipment of the specified type is sent for the detection signal, the feedback information
It is made of multiple bits, the corresponding bit information of each bit；
Judge on same bit whether and meanwhile receive a variety of bit informations；
If so, determine while receiving multiple NFC snooping equipments of the specified type for the detection signal transmission
Feedback information.
3. according to the method described in claim 2, it is characterized in that, described be directed to each described bit information, by the ratio
Special information is as signature identification, comprising:
Any one bit information is chosen as signature identification from a variety of bit informations received on the bit；
Bit information on the bit of the object feedback information is consistent with the signature identification.
4. the method according to claim 1, wherein the method also includes:
When the multiple NFC snooping equipments judged not while receive the specified type detect the anti-of signal transmission for described
When feedforward information, the NFC snooping equipment of next type is detected according to default detection ordering.
5. described in any item methods according to claim 1~3, which is characterized in that described to identify institute according to the device identification
After stating target NFC snooping equipment, the method also includes:
Whether the detection time for judging to detect the NFC snooping equipment of the specified type is more than maximum detection time；
If so, executing described the step of detecting the NFC snooping equipment of next type according to default detection ordering.
6. according to the method described in claim 5, it is characterized in that, the method also includes:
When judging that the detection time of NFC snooping equipment of the specified type is more than maximum detection time, judge according to pre-
If whether detection ordering has detected all types of NFC snooping equipments；
If it is not, then executing described the step of detecting the NFC snooping equipment of next type according to default detection ordering.
7. a kind of NFC detection device characterized by comprising
First radio unit, for broadcasting the detection signal for detecting near-field communication NFC snooping equipment；
First judging unit, for judging whether same when according to the NFC snooping equipment of default detection ordering detection specified type
When receive the feedback information that multiple NFC snooping equipments of the specified type send for the detection signal, the feedback
Information carries bit information；
Second radio unit is when being, to believe for bit described in each for the judging result in first judging unit
Breath using the bit information as signature identification, and broadcasts the broadcast message including the signature identification, and the broadcast message is also
The position in the feedback information is identified including this feature；
Receiving unit, the target NFC snooping equipment in the NFC snooping equipment for receiving the specified type respond the broadcast
The object feedback information that information is sent, wherein the object feedback information includes that the signature identification and the target NFC are detectd
Listen the device identification of equipment；
Recognition unit, for identifying the target NFC snooping equipment according to the device identification；
Detection unit, when for identifying all NFC snooping equipments of the specified type in the recognition unit, according to default
Detection ordering detects the NFC snooping equipment of next type.
8. NFC detection device according to claim 7, which is characterized in that first judging unit includes receiving son list
Member executes subelement and determines subelement, in which:
The receiving subelement, for receiving the NFC snooping equipment of the specified type for the anti-of the detection signal transmission
Feedforward information, the feedback information are made of multiple bits, the corresponding bit information of each bit；
The execution subelement, for judge on same bit whether and meanwhile receive a variety of bit informations；
The determining subelement determination while receiving institute for when the judging result that judge of execution subelement is is
State the feedback information that multiple NFC snooping equipments of specified type are sent for the detection signal.
9. NFC detection device according to claim 8, which is characterized in that second radio unit is directed to each institute
Bit information is stated, using the bit information as the concrete mode of signature identification are as follows:
Spy of any one bit information as the bit is chosen from a variety of bit informations received on the bit
Sign mark；
Bit information on the bit of the object feedback information is consistent with the signature identification.
10. NFC detection device according to claim 7, which is characterized in that
The detection unit is also used to judge not in first judging unit while receiving the multiple of the specified type
When the feedback information that NFC snooping equipment is sent for the detection signal, the NFC of next type is detected according to default detection ordering
Snooping equipment.
11. according to the described in any item NFC detection devices of claim 7~9, which is characterized in that the NFC detection device also wraps
It includes:
Second judgment unit, for judging to detect whether the detection time of NFC snooping equipment of the specified type is more than maximum
Detection time；
Third judging unit is when being, to judge according to default detection ordering for the judging result in the second judgment unit
Whether all types of NFC snooping equipments have been detected；
Wherein, the detection unit is specifically used for when the judging result of the third judging unit is to be, according to default detection
The NFC snooping equipment of the lower type of sequence detection.
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| CN201510209296.2A CN105578497B (en) | 2015-04-28 | 2015-04-28 | A kind of detection method and relevant device of NFC snooping equipment |
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| CN201510209296.2A CN105578497B (en) | 2015-04-28 | 2015-04-28 | A kind of detection method and relevant device of NFC snooping equipment |
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| CN102300296A (en) * | 2011-08-24 | 2011-12-28 | 中兴通讯股份有限公司 | Method for reducing near field communication (NFC) apparatus power consumption and terminal equipment |
| CN103973340A (en) * | 2013-01-29 | 2014-08-06 | 华为终端有限公司 | Near field communication method and near field communication device |
| CN104081679A (en) * | 2012-10-25 | 2014-10-01 | 华为终端有限公司 | Near field communication method and near field communications device |
| CN104244456A (en) * | 2013-06-20 | 2014-12-24 | 华为终端有限公司 | Near field communication device activation method, near field communication primary device and target device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300296A (en) * | 2011-08-24 | 2011-12-28 | 中兴通讯股份有限公司 | Method for reducing near field communication (NFC) apparatus power consumption and terminal equipment |
| CN104081679A (en) * | 2012-10-25 | 2014-10-01 | 华为终端有限公司 | Near field communication method and near field communications device |
| CN103973340A (en) * | 2013-01-29 | 2014-08-06 | 华为终端有限公司 | Near field communication method and near field communication device |
| CN104244456A (en) * | 2013-06-20 | 2014-12-24 | 华为终端有限公司 | Near field communication device activation method, near field communication primary device and target device |
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