CN104680206A - Access processing method for label - Google Patents
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- CN104680206A CN104680206A CN201310648594.2A CN201310648594A CN104680206A CN 104680206 A CN104680206 A CN 104680206A CN 201310648594 A CN201310648594 A CN 201310648594A CN 104680206 A CN104680206 A CN 104680206A
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Abstract
The invention provides an access method and an access processing method and a device for labels. The access method comprises the following steps: a reader-writer receives indicating information from a client, wherein the indicating information is used for indicating a label mode of a label to be accessed, and the label mode comprises one of a public mode and a private mode; the reader-writer performs label matching on an identified label according to the received indicating information; after the matching is successful, the reader-writer accesses the identified label. According to the technical scheme disclosed by the invention, the technical problems of low security, lower efficiency and the like of access to the label in related technologies are solved, so that the private mode and the public mode of the label can be simultaneously supported; the method is higher in efficiency, and the security of a system is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of access processing method of label.
Background technology
Radio-frequency (RF) identification (Radio Frequency Identify, referred to as RFID) system comprises label and read write line, it is a kind of contactless automatic identification technology, it automatically identifies destination object by radiofrequency signal and obtains related data, identification work need not manual intervention, can work in various rugged surroundings.RFID technique identifiable design high-speed moving object also can identify multiple label simultaneously, swift and convenient to operate.
At present, in correlation technique exist provide privately owned and publicly-owned two kinds of mode tag memory blocks label, EPC C1G2(Electronic procduct code class1generation2 supported by this label) agreement, this two kinds of patterns can be changed at any time by instruction of eating dishes without rice or wine.The memory block that these two kinds of patterns can be accessed is different, under privately owned pattern, EPC code length is 128, the USER district of 512 is had more than publicly-owned pattern, TID district has more 16 TID heads than publicly-owned pattern, 48 bit sequence number, and the EPC code of publicly-owned pattern is left in the TID district of privately owned pattern, user can access these regions after patten transformation; Also provided is short distance (within 1 meter) tag access function and interim and perpetual model translation function.All above-mentioned QT technology are conducive to client secure access tag memory block, meet various different application scenarios, can obtain more and more wider application in actual applications.
Low layer reader protocol (Low Level Reader Protocol, referred to as LLRP) agreement is the protocol interface between RFID reader and client computer.Why being called as lower layer protocol, is because it provide the control of RFID radio frequency protocol, the function namely providing radio frequency protocol access and control, and it has following features:
Supplying method controls reader and reads EPC information and out of Memory, writes data in label, and performs other order depending on agreement, as kill and lock in EPCC1G2.；
Healthy and strong status report and error handling mechanism are provided;
The function of the wireless transmission protocol providing expansion new;
Obtain the ability of reader device.
In the EPC network architecture of EPCglobal tissue definition, LLRP agreement, in filtration with between collecting layer and reader layer, serves as the effect of a medium.The protocol provides for a standard interface between client and reader, different manufacturers can issue corresponding Message Opcode reader according to actual scene, so just achieves the standardization of reader interfaces.
LLRP agreement provides the message of client-access reader, such as ADD_ACCESSSPEC, ADD_ROSPEC etc., ADD_ACCESSSPEC is access message, in ADD_ACCESSSPEC message, stop the information such as trigger condition, visit order (AccessCommand) containing id information, state, operation; To eat dishes without rice or wine in visit order protocol label mask information (AirProtocolTagSpec) and visit order operation information (AccessCommandOpSpec), but, adopt such scheme to conduct interviews to label and there is the defects such as the not high and efficiency of security is lower.
For the problems referred to above in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
For in correlation technique, label is conducted interviews and to there is the technical matterss such as the not high and efficiency of security is lower in process, the invention provides a kind of access of label, access processing method and device, at least to solve the problem.
According to an aspect of the present invention, provide a kind of access method of label, comprising: read write line receives the indication information coming from client, wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern; Read write line carries out tag match according to the indication information received to the label recognized; After the match is successful, read write line conducts interviews to the label recognized.
Read write line receives the indication information coming from client, comprising: read write line receives the access message coming from client, and wherein, access message carries indication information.
In access message, carry indication information in the following manner: in access message, increase special parameters, wherein, special parameters is used to indicate the label mode of label to be visited.
Special parameters is the special parameters increased in the visit order parameter of access message.
Read write line carries out tag match according to the indication information received to the label recognized, and comprising: if indication information is designated as privately owned pattern, read write line transfers the label recognized to privately owned pattern, and after reading respective storage areas content, then carry out matching operation; If indication information is designated as publicly-owned pattern, read write line transfers the label recognized to publicly-owned pattern, if matching area is product electronic code EPC, then directly carries out matching operation; If matching operation is carried out after then needing to read TID memory block content again in TID region; If USER district then determines that it fails to match.
Following information is also comprised: the ageing information of label mode transitional information, access profile information, label mode conversion in above-mentioned access message.
According to a further aspect in the invention, provide a kind of access processing method of label, comprising: client obtains indication information, wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern; Client sends the Indication message obtained to read write line.
Client sends the Indication message obtained to read write line, comprising: client sends access message to read write line, wherein, access message carries indication information.
In access message, carry indication information in the following manner: in access message, increase special parameters, wherein, special parameters is used to indicate the label mode of label to be visited.
Following information is also comprised: the ageing information of label mode transitional information, access profile information, label mode conversion in above-mentioned access message.
According to a further aspect of the invention, provide a kind of access means of label, be arranged in read write line, comprise: receiver module, for receiving the indication information coming from client, wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern; Matching module, for carrying out tag match according to the indication information received to the label that read write line recognizes; Access modules, for after the match is successful, conducts interviews to the label recognized.
According to a further aspect of the invention, provide a kind of access process device of label, comprising: acquisition module, for obtaining indication information, wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern; Sending module, for sending the Indication message obtained to read write line.
Pass through the present invention, read write line is adopted to carry out matching operation according to the indication information received to the label recognized, and to the technological means that label conducts interviews after the match is successful, solving in correlation technique conducts interviews to label exists the technical matterss such as the not high and efficiency of security is lower, thus achieve the privately owned pattern and publicly-owned mode tag that can support label simultaneously, there is higher efficiency, improve the security of system simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the process flow diagram of the access method of label according to the embodiment of the present invention 1;
Fig. 2 is the structured flowchart of the access means of label according to the embodiment of the present invention 1;
Fig. 3 is the process flow diagram of the access processing method of label according to the embodiment of the present invention 2;
Fig. 4 is the structured flowchart of the access process device of label according to the embodiment of the present invention 2;
Fig. 5 is the structured flowchart of the radio frequency identification security system according to the embodiment of the present invention 3 and embodiment 4;
Fig. 6 forms schematic diagram according to the ADD_ACCESSSPEC message parameter AccessCommand of the embodiment of the present invention 4;
Fig. 7 is the Type-Length-Value(TLV of the AccessCommand provided according to the LLRP agreement of the embodiment of the present invention 4) coded format schematic diagram;
Fig. 8 is the Type-Length-Value(TLV of the AccessCommand according to the embodiment of the present invention 4) coded format schematic diagram;
Fig. 9 is the Type-Length-Value(TLV of the C1G2CustomerSetting according to the embodiment of the present invention 4) coded format schematic diagram;
Figure 10 (a) is the parameter format schematic diagram of the label allocation pattern according to the embodiment of the present invention 4;
Figure 10 (b) is for being operating result response message format schematic diagram that read write line returns to client according to the embodiment of the present invention 4;
Figure 11 (a) is the form schematic diagram of the acquisition label mode information according to the embodiment of the present invention 4;
Figure 11 (b) obtains label mode response coding form schematic diagram according to the read write line of the embodiment of the present invention 4 to client;
Figure 12 is according to the client configuration of the embodiment of the present invention 4 or obtains the mutual schematic diagram of label mode;
Figure 13 supports the publicly-owned pattern of operation and privately owned mode tag process flow diagram according to while the embodiment of the present invention 4.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Consider in correlation technique, there is no at present conducts interviews to label exists the effective solution of the technical matterss such as the not high and efficiency of security is lower, provides relevant solution below in conjunction with embodiment, now describes in detail.
Fig. 1 is the process flow diagram of the access method of label according to the embodiment of the present invention 1.As shown in Figure 1, the method comprises:
Step S102, read write line receives and comes from the indication information of client, and wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern;
Step S104, read write line carries out tag match according to the indication information received to the label recognized;
Step S106, after the match is successful, read write line conducts interviews to the label recognized.
Adopt above-mentioned processing procedure, owing to can mate the label recognized according to the indication information of client, and after the match is successful, label is conducted interviews, therefore, the privately owned pattern of label and publicly-owned mode tag can be supported simultaneously, there is higher efficiency, improve the security of system simultaneously.
Read write line can receive according to various ways the above-mentioned indication information coming from client, such as can receive by setting up a dedicated communication link, in a preferred implementation of the present embodiment, can by receive come from client access message and carry in access message above-mentioned indication information technological means realize.
The mode of carrying indication information in access message also has multiple, such as, in access message, increase special parameters, and wherein, special parameters is used to indicate the label mode of label to be visited.In a preferred implementation process, above-mentioned special parameters is the special parameters increased in the visit order parameter in above-mentioned access message.
Step S104 specifically can comprise following processing procedure: if indication information is designated as privately owned pattern, read write line transfers the label recognized to privately owned pattern, and after reading respective storage areas content, then carry out matching operation; If indication information is designated as publicly-owned pattern, read write line transfers the label recognized to publicly-owned pattern, if matching area is product electronic code EPC, then directly carries out matching operation; If matching operation is carried out after then needing to read TID memory block content again in TID region; If USER district then determines that it fails to match.
In the present embodiment, following information can also be comprised in above-mentioned access message: the ageing information of label mode transitional information, access profile information, label mode conversion.Above-mentioned information can be realized by the respective field in access message.Such as label mode transitional information can be changed field by label mode and realize, and access profile information is realized by access profile field, and the ageing information of label mode conversion is realized by interim conversion or permanent conversion field.
Additionally provide a kind of access means of label in the present embodiment, this device is arranged in read write line, for realizing above-described embodiment and preferred implementation, having carried out repeating no more of explanation, and being described below to the module related in this device.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.Fig. 2 is the structured flowchart of the access means of label according to the embodiment of the present invention 1.As shown in Figure 2, this device comprises:
Receiver module 20, is connected to matching module 22, and for receiving the indication information coming from client, wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern;
Matching module 22, is connected to access modules 24, carries out tag match for the indication information received according to receiver module 20 to the label that read write line recognizes;
Access modules, after at matching module 22, the match is successful, conducts interviews to the label recognized.
By the function of each processing modules implement above-mentioned, can mate the label recognized according to the indication information of client equally, and after the match is successful, label is conducted interviews, therefore, the privately owned pattern of label and publicly-owned pattern can be supported simultaneously, there is higher efficiency, improve the security of system simultaneously
Embodiment 2
The present embodiment is corresponding with embodiment 1, is with the difference of embodiment 1, is described at the access scheme of client-side to label.
Fig. 3 is the process flow diagram of the access processing method of label according to the embodiment of the present invention 2.As shown in Figure 3, the method comprises:
Step S302, client obtains indication information, and wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern;
Step S304, client sends the Indication message obtained to read write line.
Client can send above-mentioned indication information in several ways, such as can send by setting up a dedicated communication link, in a preferred implementation process of the present embodiment, realize in the following manner: client sends access message to read write line, wherein, access message carries indication information.
In the present embodiment, carry indication information in the following manner in access message: in access message, increase special parameters, wherein, special parameters is used to indicate the label mode of label to be visited.
Similar with embodiment 1, following information can also be included but not limited in access message: the ageing information of label mode transitional information, access profile information, label mode conversion.
In the present embodiment, additionally provide a kind of access process device of label, this device is used for realizing said method, and Fig. 4 is the structured flowchart of the access process device of label according to the embodiment of the present invention 2.As shown in Figure 4, this device comprises:
Acquisition module 40, is connected to sending module 42, and for obtaining indication information, wherein, indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern;
Sending module 42, for sending the Indication message obtained to read write line
Embodiment 3
The technical matters that the present embodiment solves proposes a kind of radio frequency identification security system and method.The method can support the privately owned pattern of Monza4 and publicly-owned mode tag simultaneously, carry out patten transformation and accessing operation when tag match, have higher efficiency, improve the security of system simultaneously.
For achieving the above object, the technical scheme that adopts of the present embodiment is as follows:
A kind of radio frequency identification security system, as shown in Figure 5, this system comprises: client 50, read write line 52 and label 54 are formed, wherein client 50 and read write line 52 interface adopt LLRP agreement, wherein increase parameter C1G2CustomerSetting in ADD_ACCESSSPEC message AccessCommand parameter, in order to specify the publicly-owned pattern of coupling or the Monza4 label of privately owned pattern; In AccessCommandOpSpec, adding configuration and obtain label mode operation, in the operation of label allocation pattern, containing three fields, is that label mode is changed field, interim conversion or forever changes field, access profile field respectively.Client, by issuing ADD_ACCESSSPEC message, carries out the configuration of publicly-owned pattern and privately owned patten transformation and tag attributes to label.
RF identifying safety disposal route in the present embodiment, specifically comprises following treatment step:
Client issues checks (RO) and accesses (AO) message to read write line; Wherein increase parameter C1G2CustomerSetting in access message ADD_ACCESSSPEC message parameter AccessCommand, in order to specify the publicly-owned pattern of coupling or the Monza4 label of privately owned pattern;
After recognizing a label, carry out tag match, if C1G2CustomerSetting is configured to privately owned pattern, needs first to transfer label to privately owned pattern, read respective storage areas content, then carry out matching operation;
If C1G2CustomerSetting is configured to publicly-owned pattern, first transfer label to publicly-owned pattern, if matching area is EPC district, directly matching operation, if TID district, mates after needing to read memory block content; If USER district then returns, it fails to match.
Mate laggard rower label accessing operation, wherein, accessing operation has comprised reading and writing, locks, kills, label allocation pattern, obtain label mode.
Scheme in the present embodiment, can support the privately owned pattern of Monza4 and publicly-owned mode tag simultaneously, carry out patten transformation and accessing operation when tag match, have higher efficiency, improve the security of system simultaneously.
Embodiment 4
As shown in Figure 5, the radio-frequency recognition system in the present embodiment comprises client 50, read write line 52 and label 54.Adopt LLRP agreement between client 50 and read write line 54, by issuing Reader Operation(RO) and Access Operation(AO) message to read write line, carry out checking, reading and writing, lock, the accessing operation such as to kill.Adopt EPCC1G2 agreement between read write line and label, realize Physical layer and link layer is checked and accessing operation.For Monza4 label, The present invention gives the accessing operation of label allocation state and acquisition tag state.And an accessing operation in AO visit order using label allocation state or acquisition tag state, arranges tag state and attribute, can utilize the attribute of label preferably, improve the security of system.
Such as, first by card sender, label can be converted to privately owned state temporarily, after hair fastener, the relevant memory block of locking, then transfer label to publicly-owned state.
Label is in publicly-owned state in actual applications, can be converted to privately owned state by transitory state, and to operations that conducts interviews such as label USER districts, after waiting operation to complete, label transfers publicly-owned state automatically to, and protection USER district data message is not by other user operations.
Visible, add label allocation state of operation, ensure that the security of system to a certain extent.
With reference to shown in accompanying drawing 6, Fig. 6 shows ADD_ACCESSSPEC message parameter AccessCommand structure.Be made up of three parts: protocol label mask information (AirProtocolTagSpec) of eating dishes without rice or wine in visit order, visit order operation information (AccessCommandOpSpec) and match pattern information C1G2CustomerSetting.Be add match pattern field on standard LLRP protocol basis, this field can determine to mate the publicly-owned Mode Areas of label or privately owned Mode Areas.Like this, if when there is privately owned mode tag and publicly-owned mode tag in electromagnetic field simultaneously, read write line can identify two kinds of mode tag simultaneously, reads respective regions content, carries out tag match operation; And patten transformation can complete before read operation, do not need newly-increased accessing operation to carry out switch labels state, which enhance access efficiency.
With reference to shown in accompanying drawing 7, Fig. 7 shows the Type-Length-Value(TLV of the AccessCommand that LLRP agreement provides) coded format.Comprise mask information and accessing operation information.Which label mask information determines and participates in accessing operation, and accessing operation information determines the label participating in access and carries out which operation.
With reference to shown in accompanying drawing 8, Fig. 8 shows the Type-Length-Value(TLV of AccessCommand) coded format.Except comprising mask information and accessing operation information, also comprise match pattern information C1G2CustomerSetting.Match pattern information determines the coupling privately owned memory block of label or publicly-owned memory block.
With reference to shown in accompanying drawing 9, Fig. 9 shows the Type-Length-Value(TLV of C1G2CustomerSetting) coded format.This parameter comprises the CircumstanceSetting field of eight, and the definition of this field determines the privately owned memory block of coupling label or publicly-owned memory block.
Figure 10 (a) shows the parameter format of label allocation pattern, except access ID, outside access key, gives three fields, is that label mode is changed field, access profile field and interim conversion or forever changes field respectively.Label mode conversion must be carried out under SECURE state, and need to input correct key, access key guarantees the security of tag access system; Label is privately owned pattern by publicly-owned patten transformation by patten transformation field, or is publicly-owned pattern by privately owned Mode change; Access profile field determine short distance access (within 1 meter) or normalized distance from access; It is interim or permanent that interim conversion or permanent conversion field determine label mode, if interim conversion can automatically transfer publicly-owned state to after label power down, if perpetual model, label can keep this pattern always, until next patten transformation.Figure 10 (b) is the operating result response message that read write line returns to client, to know the correctness of operating result.
It is obtain label mode information that Figure 11 (a) shows, and only needs to access ID, access key parameter.Figure 11 (b) shows read write line and obtains label mode response coding form to client, obtains present mode and the access profile of label.By this accessing operation, client can be made to understand label current attribute information.
With reference to shown in accompanying drawing 12, Figure 12 shows client configuration or obtains the mutual schematic diagram of label mode.Configuration and to obtain label mode be client is issued by ADD_ACCESSSPEC message, obtains read write line operation response results by RO_ACCESS_REPORT label report message.There is mode configuration message just, just ensure that the security of this system.
With reference to shown in accompanying drawing 13, support the publicly-owned pattern of operation and privately owned mode tag flow process simultaneously, comprising:
Step S1300, determines whether to check a label, if go to step S1302, otherwise, continue to check;
S1302, after checking a label, carries out tag match;
S1304, judges whether CircumstanceSetting is privately owned pattern, is privately owned pattern or publicly-owned pattern, if so, goes to step S1306, otherwise, go to step S1308;
S1306, if the label judging the privately owned pattern of current matching, transfers label to privately owned mode tag, goes to step S1316;
Step S1308, the label of the publicly-owned pattern of current matching, transfers label to publicly-owned mode tag, goes to step S1310;
Step S1310, judges whether matching area is EPC memory block, if so, goes to step S1318, otherwise goes to step S1312;
Step S1312, judges whether matching area is TID memory block, if so, goes to step S1316, otherwise, go to step S1314;
Step S1314, if USER memory block then returns, it fails to match, because publicly-owned pattern index label do not exist USER memory block, after it fails to match, continues next region of coupling;
Step S1316, reads this pattern storage district, namely reads the content of matching area, go to step S1318;
Step S1318, carries out tag match, goes to step S1320;
S1320, judges whether that the match is successful, if the match is successful, goes to step S1322, otherwise goes to step S1300;
S1322, after the match is successful, carries out the accessing operation of label, and this accessing operation comprises reading and writing, locks, kills, label allocation pattern and obtain label mode.
In another embodiment, additionally provide a kind of software, this software is for performing the technical scheme described in above-described embodiment and preferred implementation.
In another embodiment, additionally provide a kind of storage medium, store above-mentioned software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. an access method for label, is characterized in that, comprising:
Read write line receives and comes from the indication information of client, and wherein, described indication information is used to indicate the label mode of label to be visited, and this label mode comprises one of following: publicly-owned pattern, privately owned pattern;
Described read write line carries out tag match according to the described indication information received to the label recognized;
After the match is successful, described read write line conducts interviews to the described label recognized.
2. method according to claim 1, is characterized in that, read write line receives the indication information coming from client, comprising:
Described read write line receives the access message coming from client, and wherein, described access message carries described indication information.
3. method according to claim 2, is characterized in that, carries described indication information in the following manner in described access message:
In described access message, increase special parameters, wherein, described special parameters is used to indicate the label mode of label to be visited.
4. method according to claim 3, is characterized in that, described special parameters is the special parameters increased in the visit order parameter of described access message.
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Application publication date: 20150603 |