CN104866883B - A kind of RFID data processing method and device - Google Patents
A kind of RFID data processing method and device Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of radio frequency discrimination RFID data processing method and device, this method includes：Obtain the first data packet in the first RFID tag；The first identification code corresponding with the first RFID tag is extracted from the first data packet；Based on the first identification code, establish first thread corresponding with the first RFID tag and first timer, wherein whether first thread is effective for characterizing the first data packet, and first thread is added in thread management list, and first thread is marked according to first timer；According to the first mark information of first thread, first thread is handled.Scheme disclosed by the embodiments of the present invention can be handled first thread according to the first mark information of first thread, and then it realizes to whether the first data packet in the first RFID tag effectively confirms, to solve there is technical issues that in RFID system in the prior art, guarantee that RFID system applies the validity of used data at the middle and upper levels.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of RFID data processing method and devices.
Background technique
RFID (English：Radio Frequency Identification；Chinese：Radio frequency identification) it is a kind of contactless
Automatic identification technology works in the sensing layer of Internet of Things, be widely used in anti-counterfeit recognition, ticketing service traffic, logistics supply,
The fields such as security monitoring and locating and tracking.Due to the limitation of the physical conditions such as radio frequency induction in RFID, wireless sensor device day
Life has uncertainty and vulnerable to environmental disturbances, and system mostly reading, skip, repetition is caused to read and mispronounce phenomenon and happen occasionally.
These more readings, skip, repetition are read and are mispronounced data and may be collectively referred to as RFID redundant data.It is mispronounced to be reduced or avoided
Phenomenon can be taken and improve reader and label production technology level, reduce external electromagnetic environmental disturbances, optimization anticollision protocol
With the measures such as error checking and correction.But it for reading, repeats reading and skip phenomenon more, is only used as supplementary means using these methods, even
It is also undesirable to change reader deployment way, because each reader has its intrinsic coverage area, reader investigative range phase
It is difficult to accomplish without intersection and exhaustive covering between mutually.
The redundant data of RFID system is broadly divided into the redundant data of reader rank and the redundant data of data-level.It reads
The redundant data for writing device rank is mainly that multiple readers read the different ownership that labels certain in investigative range carry out.Especially
It is to be deposited between the actual detection region of reader and its space cell of interest in the environment of dense deployment RFID reader
In Spatial Mismatch phenomenon, the RFID data intersection reading problem caused by Spatial Mismatch will lead to label homing position information and be difficult to sentence
It is disconnected, and then affect the application demand of RFID upper-level system.The redundant data that tag recognition and label ownership positioning generate is serious
The efficiency that RFID system uses is reduced, also become large-scale promotion and implements the bottleneck of RFID.Rely solely on reduction reader
Number come reach be reduced or avoided intersection region way it is infeasible in practical applications because in this way will cause detection covering it is blind
Point or test leakage region are larger.Meanwhile this sparse disposition flexibility is poor, scalability is also insufficient.The redundant data of data-level
Mainly reader is repeated to certain static in investigative range or stop label progress a large amount of continuous readings within certain time
Read data.Especially under single reader multi-tag environment, reader will certainly shadow to the repetition reading of label in the unit time
Ring the logical process problem on upper layer.
Therefore, there is technical issues that in RFID system in the prior art.
Summary of the invention
The embodiment of the present invention is by providing a kind of RFID data processing method and device, to solve in the prior art
There is technical issues that in RFID system.
The embodiment of the invention provides a kind of radio frequency discrimination RFID data processing methods, including：
Obtain the first data packet in the first RFID tag；
The first identification code corresponding with first RFID tag is extracted from first data packet；
Based on first identification code, first thread corresponding with first RFID tag and the first timing are established
The first thread wherein whether the first thread is effective for characterizing first data packet, and is added to line by device
In thread management list, and the first thread is marked according to the first timer；
According to the first mark information of the first thread, the first thread is handled.
Optionally, described that the first thread is marked according to the first timer, it specifically includes：
It is based on first identification code described, establishes first thread corresponding with first RFID tag and first
When timer, by the first thread labeled as effectively, the first timer starts timing；Or
After one preset time period of first timer timing, by the first thread labeled as invalid.
Optionally, first mark information according to the first thread, is handled the first thread, specifically
Including：
If the first thread is marked as in vain, clearing up the first thread for being marked as invalid.
Optionally, it is marked as invalid first thread and clears up for described pair, specifically include：
The thread management list is locked；
The thread management list is traversed, is deleted the invalid first thread is marked as in the thread management list
It removes；
The thread management list is unlocked.
Optionally, it is based on first identification code described, establishes first thread corresponding with first RFID tag
And when first timer, if the first thread is existing, by the first thread labeled as effectively, and described the is controlled
New beginning timing is thought highly of in one timing.
Optionally, it is described the first thread is added in thread management list after, the method also includes：
Save the thread management list.
On the other hand the embodiment of the present invention also provides a kind of RFID data processing unit, including：
Obtaining unit, for obtaining the first data packet in the first RFID tag；
Extraction unit, for extracting the first identification corresponding with first RFID tag from first data packet
Code；
Unit is established, for being based on first identification code, establishes first thread corresponding with first RFID tag
And first timer, wherein whether the first thread is effective for characterizing first data packet, and by described first
Thread is added in thread management list, and the first thread is marked according to the first timer；
Processing unit is handled the first thread for the first mark information according to the first thread.
Optionally, the unit of establishing is specifically used for establishing and described first described based on first identification code
When the corresponding first thread of RFID tag and first timer, by the first thread labeled as effectively, described first periodically
Device starts timing, or after one preset time period of first timer timing, by the first thread labeled as invalid.
Optionally, if the processing unit is specifically used for the first thread and is labeled as in vain by the unit of establishing,
The first thread for being marked as invalid is cleared up.
Optionally, the processing unit is specifically used for locking the thread management list, and traverses the thread
Management list will be marked as the invalid first thread and delete in the thread management list, and to the thread management
List is unlocked.
The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages：
Due to using by establishing corresponding with the first RFID tag first thread and first timer, and pass through the
The technical solution that one timer marks first thread, so as to the first mark information according to first thread to first thread
It is handled, and then is realized to whether the first data packet in the first RFID tag effectively confirms, to solve existing skill
There is technical issues that in RFID system in art, guarantees that RFID system applies the effective of used data at the middle and upper levels
Property.
Detailed description of the invention
Fig. 1 is the flow chart of RFID data processing method provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of RFID data processing unit provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is deposited by providing a kind of RFID data processing method and device to solve in the prior art
RFID system in there is technical issues that.
Technical solution in the embodiment of the present invention is in order to solve the above technical problems, general thought is as follows：
Obtain the first data packet in the first RFID tag；
The first identification code corresponding with the first RFID tag is extracted from the first data packet；
Based on the first identification code, first thread corresponding with the first RFID tag and first timer are established, wherein the
Whether one thread is effective for characterizing the first data packet, and first thread is added in thread management list, and according to the
First thread is marked in one timer；
According to the first mark information of first thread, first thread is handled.
As can be seen that by establishing first thread corresponding with the first RFID tag and first timer, and pass through
First timer to first thread mark, so as to the first mark information according to first thread to first thread at
Reason, and then realize to whether the first data packet in the first RFID tag effectively confirms, to solve in the prior art
There is technical issues that in RFID system.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
Referring to FIG. 1, Fig. 1 is a kind of flow chart of RFID data processing method provided in an embodiment of the present invention, such as Fig. 1 institute
Show, this method includes：
S1：Obtain the first data packet in the first RFID tag；
S2：The first identification code corresponding with the first RFID tag is extracted from the first data packet；
S3：Based on the first identification code, first thread corresponding with the first RFID tag and first timer are established, wherein
Whether first thread is effective for characterizing the first data packet, and first thread is added in thread management list, and according to
First thread is marked in first timer；
S4：According to the first mark information of first thread, first thread is handled.
In S1, specifically, by way of being acquired active acquisition or passively, obtained out of first RFID tag
Take the first data packet.
If needing to be pre-designed suitable monitoring rule in such a way that active acquires and waiting rule, wherein monitor
After message of the rule for monitoring RFID card reader feedback excuse feedback, how the side of the data packet in allocation processing RFID tag
Formula；The mode passively acquired is used for when congestion occurs in monitoring, how to handle or abandon the data packet in RFID tag.
If needing to be pre-designed suitable triggering rule, triggering rule is for controlling by way of passively acquiring
How RFID tag initiatively provides the data packet in RFID tag to RFID card reader.
In practical applications, technical staff belonging to this field can select suitable data acquisition according to the actual situation
Mode and for rule, to obtain the data packet in RFID tag, details are not described herein again.
In the following section, by taking the first data packet in the first RFID tag as an example, come Jie that illustrated in detail
It continues.
It in the specific implementation process, can also be in advance to the first number got in order to guarantee the validity of RFID tag
It is verified according to packet, specifically, with CRC (English：Cyclic Redundancy Check；Referred to as Chinese：Cyclic redundancy check)
For, it can not divide exactly when receiving the first data packet reduction CRC, abandon current data, show that the RFID is marked if it can divide exactly
It is signed with effect.
After obtaining the first data packet in the first RFID tag by S1, method provided in an embodiment of the present invention enters
S2, i.e.,：The first identification code corresponding with the first RFID tag is extracted from the first data packet.
In S2, specifically, i.e., according to preset extracting rule, the first identification code is extracted from the first data packet.
If acquiring the first data packet in the first RFID tag in such a way that active acquires, then removal can be verified
Sequence other than code is as the first identification code；If acquiring the first data in the first RFID tag by way of passively acquiring
Packet, then can be using the sequence other than check code and address code as the first identification code.It is of course also possible to according to the actual situation, adopt
Such as pass through time33 scheduling algorithm with other suitable modes and extract the first identification code out of first data packet, to meet practical feelings
The needs of condition, herein with no restrictions.
Passing through S2 after extracting the first identification code in the first data packet, method provided in an embodiment of the present invention enters
S3, i.e.,：Based on the first identification code, first thread corresponding with the first RFID tag and first timer are established, and by the
One thread is added in thread management list, and first thread is marked according to first timer.
It is to be established and the first RFID tag pair according to the first identification code extracted in S2 specifically in S3
The first thread and first timer answered, whether first thread is used to characterize the first data packet effective, specifically, first thread
When being effective, the first data packet is valid data, and when first thread is wireless, the first data packet is invalid data.In this way, passing through
First timer realizes the label to first thread, and is handled according to the label to first thread first thread, realizes
Whether the technology for solving redundant data present in RFID system in the prior art is asked effectively is confirmed to the first data packet
Topic.
In the specific implementation process, after establishing first thread and first timer, it can first thread is put into line
In thread management list, so that the upper layer logic of RFID system can be according to the first thread in thread management list, to the first number
The operation such as it is read out according to packet.It specifically, can be first to thread management when first thread to be added in thread management list
List carries out locking operation, avoids other threads from operating thread management list, at this point, if having other to need that thread is added
These threads are then added in waiting list by the thread of management list, add thread pipe after thread management list unlock
It manages in list, a thread is then created in thread management list, and the first identification code is written in first thread, by the
Identification code of one identification code as first thread.
At this point, after first thread is added in thread management list, it can save thread management list to hard disk
In equal memory spaces, emergency cases damages caused by RFID system such as power-off are avoided.
Certainly, in order to guarantee the uniqueness of first thread, first thread and the first timing are being established according to the first identification code
When device, method provided in an embodiment of the present invention further includes：According to the first identification code, thread management list is traversed, checks thread pipe
Whether first thread is had existed in reason list.If first thread has existed, by first thread labeled as effective；If thread
First thread is not present in management list, then can continue S3.
Meanwhile also first thread is marked by first timer, specifically, i.e.,：It is being based on the first identification code,
When establishing first thread corresponding with the first RFID tag and first timer, by first thread labeled as effectively, first is fixed
When device start timing；Or after one preset time period of first timer timing, by first thread labeled as invalid.
In the specific implementation process, the length of preset time period can be configured according to the environment locating for RFID, such as
The factors such as the mobile speed of interval, holder or object are put according to RFID card reader, set reasonable for preset time period
Numerical value, the case where so as to which approximatively electronic tag leaves current card reader, details are not described herein again.
For example, setting preset time period as 1 minute, then first thread and first timer are being established according to the first identification code
Afterwards, first thread is added in thread management list first and is labeled as effectively, then the upper layer application of RFID system can at this time
To read the first data packet and carry out corresponding processing, while first timer starts timing, if the first RFID tag is again at this time
It is secondary to be arrived by RFID card reader scanning, namely the first data packet of the first RFID tag is obtained again, at this time due to first thread
It has built up and is present in thread management list, so first thread is no longer re-established, but again by first thread
It labeled as effective, and control first timer and restarts timing, be marked as this effective period in first thread
Interior, the upper layer application of RFID system can be read out the first data packet according to the first thread in thread management list
Deng operation.
After first timer timing 1 minute, then it is invalid to be labeled as first thread, since first thread is marked as
In vain, so the upper layer application of RFID system can not then read the first data packet at this time, it ensure that the upper layer application of RFID system
The data being able to use are valid data, give entire RFID system bring unstability so as to avoid redundant data.
After first thread is marked by S3, method provided in an embodiment of the present invention enters S4, i.e.,：According to
First mark information of one thread, handles first thread.
In the specific implementation process, when first thread is marked as effective, any place is not carried out to first thread at this time
Reason, to guarantee the validity of the first data packet；After first thread is marked as in vain, i.e., triggering is to the clear of first thread
Reason.
Specifically, including the following steps after first thread is marked as in vain to the cleaning of first thread：
Firstly, locking processing is carried out to thread management list, at this point, if thering are other to need to be added the line of thread management list
These threads are then added in waiting list by journey, are added in thread management list after thread management list unlock；
Secondly, traversal thread management list, will be marked as invalid first thread and deletes in thread management list.Specifically
, thread management list can be traversed according to the first identification code above-mentioned, so that first thread is found out, certainly, if the first identification
Code is not cryptographic Hash, and the thread in thread management list is to be arranged in order, then can be fast by modes such as binary chops
Speed hit first thread, to delete it, details are not described herein again；
Finally, unlocking thread management list, is added to other threads in thread management list, or from thread
Other threads are deleted in management list, details are not described herein again.
By first thread after being deleted in thread management list, it can save thread management list and stored to hard disk etc.
In space, emergency cases damages caused by RFID system such as power-off are avoided.
By above-mentioned part can be seen that due to using by establish corresponding with the first RFID tag first thread and
First timer, and the technical solution that first thread is marked by first timer, so as to according to first thread
Whether the first mark information handles first thread, and then realize effective to the first data packet in the first RFID tag
Confirmation guarantee RFID system at the middle and upper levels to solve to there is technical issues that in RFID system in the prior art
Using the validity of used data.
Based on the same inventive concept, on the other hand the embodiment of the present invention also provides a kind of RFID data processing unit, please join
Fig. 2 is examined, Fig. 2 is the schematic diagram of RFID data processing unit provided in an embodiment of the present invention, as shown in Fig. 2, the device includes：
Obtaining unit 201, for obtaining the first data packet in the first RFID tag；
Extraction unit 202, for extracting the first identification code corresponding with the first RFID tag from the first data packet；
Unit 203 is established, for being based on the first identification code, establishes corresponding with the first RFID tag first thread and the
One timer, wherein whether first thread is effective for characterizing the first data packet, and first thread is added to thread management
In list, and first thread is marked according to first timer；
Processing unit 204 is handled first thread for the first mark information according to first thread.
In the specific implementation process, unit 203 is established to be specifically used for establishing and marking with the first RFID based on the first identification code
When signing corresponding first thread and first timer, by first thread labeled as effectively, first timer starts timing, or
After one preset time period of first timer timing, by first thread labeled as invalid.
In the specific implementation process, if processing unit 204 is specifically used for first thread and is established unit 203 labeled as nothing
Effect is then cleared up to being marked as invalid first thread.
In the specific implementation process, processing unit 204 is specifically used for locking thread management list, and traverses thread
Management list will be marked as invalid first thread and delete, and is unlocked to thread management list in thread management list.
Technical solution in the embodiments of the present invention, at least has the following technical effect that or advantage：
Due to using by establishing corresponding with the first RFID tag first thread and first timer, and pass through the
The technical solution that one timer marks first thread, so as to the first mark information according to first thread to first thread
It is handled, and then is realized to whether the first data packet in the first RFID tag effectively confirms, to solve existing skill
There is technical issues that in RFID system in art, guarantees that RFID system applies the effective of used data at the middle and upper levels
Property.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of radio frequency discrimination RFID data processing method, which is characterized in that including：
Obtain the first data packet in the first RFID tag；
The first identification code corresponding with first RFID tag is extracted from first data packet, wherein described from first
The method that the first identification code corresponding with first RFID tag is extracted in data packet includes the mode actively extracted, and is actively mentioned
The mode taken specifically includes：The sequence other than check code will be removed as the first identification code；
Based on first identification code, first thread corresponding with first RFID tag and first timer are established,
Described in first thread for whether characterize first data packet effective, and the first thread is added to thread management
In list, and the first thread is marked according to the first timer；Wherein, first thread is being added to thread
When in management list, locking operation is carried out to thread management list；
According to the first mark information of the first thread, the first thread is handled；
Wherein, first thread is established according to the first identification code described and when first timer, according to the first identification code, traverses line
Thread management list checks in thread management list whether have existed first thread, if first thread has existed, by first
Thread marks are effective；If first thread is not present in thread management list, executes and be based on the first identification code, establishes and first
The corresponding first thread of RFID tag and first timer, and first thread is added in thread management list, and root
The step of first thread is marked according to first timer.
2. the method as described in claim 1, which is characterized in that it is described according to the first timer to the first thread into
Line flag specifically includes：
It is based on first identification code described, establishes first thread corresponding with first RFID tag and the first timing
When device, by the first thread labeled as effectively, the first timer starts timing；Or
After one preset time period of first timer timing, by the first thread labeled as invalid.
3. method according to claim 2, which is characterized in that first mark information according to the first thread is right
The first thread is handled, and is specifically included：
If the first thread is marked as in vain, clearing up the first thread for being marked as invalid.
4. method as claimed in claim 3, which is characterized in that described pair is marked as invalid first thread and clears up,
It specifically includes：
The thread management list is locked；
The thread management list is traversed, the invalid first thread will be marked as in the thread management list and is deleted；
The thread management list is unlocked.
5. the method as described in claim 1, which is characterized in that be based on first identification code described, establish and described the
When the corresponding first thread of one RFID tag and first timer, if the first thread is existing, by the First Line
Journey is labeled as effectively, and is controlled the first timer and restarted timing.
6. the method as described in claim 1, which is characterized in that the first thread is added to thread management list described
In after, the method also includes：
Save the thread management list.
7. a kind of RFID data processing unit, which is characterized in that including：
Obtaining unit, for obtaining the first data packet in the first RFID tag；
Extraction unit, for extracting the first identification code corresponding with first RFID tag from first data packet,
In, the method that the first identification code corresponding with first RFID tag is extracted from the first data packet includes actively extracting
Mode, actively extract mode specifically include：The sequence other than check code will be removed as the first identification code；
Establish unit, for being based on first identification code, establish corresponding with first RFID tag first thread and
First timer, wherein whether the first thread is effective for characterizing first data packet, and by the first thread
It is added in thread management list, and the first thread is marked according to the first timer, wherein by first
When thread is added in thread management list, locking operation is carried out to thread management list, is built described according to the first identification code
When vertical first thread and first timer, according to the first identification code, thread management list is traversed, checking in thread management list is
It is no to have existed first thread, if first thread has existed, by first thread labeled as effective；If in thread management list
There is no first threads, then execute and be based on the first identification code, establish first thread corresponding with the first RFID tag and first
Timer, and first thread is added in thread management list, and first thread is marked according to first timer
The step of；
Processing unit is handled the first thread for the first mark information according to the first thread.
8. device as claimed in claim 7, which is characterized in that the unit of establishing is specifically used for described based on described first
Identification code, when establishing first thread corresponding with first RFID tag and first timer, by the first thread mark
It is denoted as effectively, the first timer starts timing, or after one preset time period of first timer timing, by described the
One thread marks are invalid.
9. device as claimed in claim 8, which is characterized in that if the processing unit is specifically used for the first thread by institute
It states and establishes unit labeled as invalid, then clear up to being marked as the invalid first thread.
10. device as claimed in claim 9, which is characterized in that the processing unit is specifically used for arranging the thread management
Table is locked, and traverses the thread management list, and invalid described first will be marked as in the thread management list
Thread is deleted, and is unlocked to the thread management list.
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