CN103713968B - A kind of RFID tag data based on cloud storage technology recovers and method of calibration - Google Patents
A kind of RFID tag data based on cloud storage technology recovers and method of calibration Download PDFInfo
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- CN103713968B CN103713968B CN201310738328.9A CN201310738328A CN103713968B CN 103713968 B CN103713968 B CN 103713968B CN 201310738328 A CN201310738328 A CN 201310738328A CN 103713968 B CN103713968 B CN 103713968B
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Abstract
The invention discloses a kind of RFID tag data based on cloud storage technology to recover and method of calibration, wherein, RFID tag data includes the check code of RFID tag, is not easily forged, and safety is higher；Utilize cloud storage technology, it is ensured that each RFID tag has backup in cloud storage file system, add the safety of RFID tag and without in use repeatedly backing up, less costly；The step whether consistent with the check code that reader reads including judging new check code that check code maker generates, support the integrity of FRID label information is verified, and when RFID tag suffers forgery, destroys, can be recovered by the RFID tag data that WIFI network or 2G/3G network read backup from cloud storage file system whenever and wherever possible, solve prior art cannot the RFID tag data that damage be carried out quickly and the problem that has efficient recovery, can be widely applied to the communications field。
Description
Technical field
The present invention relates to the communications field, especially a kind of RFID tag data based on cloud storage technology recovers and method of calibration。
Background technology
RFID(RF identification) technology is largely used to the fields such as storage, sample detection and commodity circulation, but owing to most RFID tag adopts metal medium, easily damage because being subject to the impact of surrounding, transportation and anthropic factor, thus causing that the partial information even full detail of write RFID tag is lost。
Existing RFID management system also exists problems with:
1) RFID tag is easily forged, and safety is relatively low。
3) RFID tag evil itself is fragile and cause the loss of information, so that in use FRID label information is repeatedly backed up, relatively costly。
4), after RFID tag data is damaged, rapidly and effectively data reconstruction method is lacked。
In sum, need in the industry a kind of safety height at present badly, cost is low, can rapidly and efficiently recover impaired RFID tag data and efficient RFID tag data recovers and method of calibration。
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to: provide a kind of based on cloud storage technology, safety is high, cost is low, can rapidly and efficiently recover impaired RFID tag data and efficient RFID tag data recovers and method of calibration。
The technical solution adopted for the present invention to solve the technical problems is: a kind of RFID tag data based on cloud storage technology recovers and method of calibration, including:
A, adopt reader and check code maker RFID tag to be initialized and data acquisition, and by the check code of the content information of product gathered, the ID of RFID tag and RFID tag together as RFID tag data, back up to cloud storage file system；
B, reader scans product RFID tag, read RFID tag data and also judge whether the data read include the check code of RFID tag, if so, then perform step C, otherwise, then perform step D；
C, check code maker adopt the hash algorithm improved to generate new check code, and judge that whether new check code is consistent with the check code that reader reads, and if so, then show that the content of this RFID tag stands intact, and flow process terminates, otherwise, then perform step D；
D, ID according to RFID tag, by WIFI network or 2G/3G network to whether cloud storage file system query exists the product content information of this RFID tag, if existing, then drive reader that the data of RFID tag are recovered, be then back to step B；If being absent from, then showing that damaged or this RFID tag the information of ID of this RFID tag does not have collected backup, flow process terminates。
Further, described step A, comprising:
RFID tag is initialized by A1, RFID management system, then drives reader to write the content information of product to RFID tag；
The content information of ID according to RFID tag of A2, check code maker and product, adopts the hash algorithm improved to generate the check code of RFID tag；
A3, by the check code of the content information of product, the ID of RFID tag and RFID tag together as RFID tag data, back up to cloud storage file system。
Further, the content information of described product includes the unique identifier of product, product coding and product type。
Further, described step A2 and step C verifies code generator and adopts the hash algorithm improved to generate check code or this step of new check code of RFID tag, comprising:
S1, employing hash function H1(key, n) processes the ID of RFID tag and the content information of product respectively, thus obtaining corresponding cryptographic Hash H1(i), wherein, key is keyword, n=1,2,3,4；
S2, according to cryptographic Hash H1(i), with the length of Hash table, adopt hash function H2(i)=H1(i) %L is to H1(i) carry out Hash to make a list, thus obtaining Hash table htable, wherein, H1(i), for the step S1 cryptographic Hash obtained, " % " is complementation operator, the length that " L " is Hash table；
S3, by H1(i) reconfigure according to Hash table htable, thus obtaining the check code of RFID tag or new check code。
Further, described step S1, comprising:
S11, the field that the ID of RFID tag or the content information of product comprise being divided into n section, every section by len(key)/n figure place forms, wherein, len(key) represent the total length of keyword key；
S12, by every section of field data occur letter replace to letter in alphabet occur sequence number；
S13, by the len(key of every section)/n numeral be added, that then will add up and to 100 remainder numbers；
S14, being added by the remainder of n section, the result that then will add up is to 36 remainder number i, if remainder i is 0, then and cryptographic Hash H1(i) also it is 0；If remainder i is within the scope of 1-26, then cryptographic Hash H1(i) it is the capitalization of corresponding sequence number；If remainder i is within the scope of 27-35, then cryptographic Hash H1(i) it is (i-26)。
Further, described step S11, itself particularly as follows:
If the ID of RFID tag or product coding, then the field that it comprises being divided into 4 sections, every section by len(key)/4 figure places form；
If the unique identifier of product, then the field that it comprises being divided into 3 sections, every section by len(key)/3 figure places form；
If product type, then the field that it comprises being divided into 1 section, every section by len(key) figure place forms。
Further, in described step S2, hash function H2(i) the mode adopting linear hashing liquidates to advance by leaps and bounds to go and processes。
The invention has the beneficial effects as follows: RFID tag data includes the check code of RFID tag, is not easily forged, and safety is higher；Utilize cloud storage technology, make same RFID tag data can be stored in different back end with the form of multiple copies, ensure that each RFID tag has backup in cloud storage file system, add the safety of RFID tag and without in use repeatedly backing up, less costly；The step whether consistent with the check code that reader reads including judging new check code that check code maker generates, support the integrity of FRID label information is verified, and when RFID tag suffers forgery, destroys, can be recovered by the RFID tag data that WIFI network or 2G/3G network read backup from cloud storage file system whenever and wherever possible, solve prior art and the RFID tag data damaged cannot be carried out the quickly problem having efficient recovery。
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described。
Fig. 1 is that a kind of RFID tag data based on cloud storage technology of the present invention recovers the flow chart of steps with method of calibration；
Fig. 2 is the flow chart of step A of the present invention；
Fig. 3 is that the present invention adopts the hash algorithm of improvement to generate the check code of RFID tag or the flow chart of new check code；
Fig. 4 is the flow chart of step S1 of the present invention；
Fig. 5 is the flow chart of first embodiment of the invention；
Fig. 6 is the flow chart of second embodiment of the invention；
Fig. 7 is the flow chart of fourth embodiment of the invention；
Fig. 8 be fourth embodiment of the invention realize process schematic。
Detailed description of the invention
With reference to Fig. 1, a kind of RFID tag data based on cloud storage technology recovers and method of calibration, including:
A, adopt reader and check code maker RFID tag to be initialized and data acquisition, and by the check code of the content information of product gathered, the ID of RFID tag and RFID tag together as RFID tag data, back up to cloud storage file system；
B, reader scans product RFID tag, read RFID tag data and also judge whether the data read include the check code of RFID tag, if so, then perform step C, otherwise, then perform step D；
C, check code maker adopt the hash algorithm improved to generate new check code, and judge that whether new check code is consistent with the check code that reader reads, and if so, then show that the content of this RFID tag stands intact, and flow process terminates, otherwise, then perform step D；
D, ID according to RFID tag, by WIFI network or 2G/3G network to whether cloud storage file system query exists the product content information of this RFID tag, if existing, then drive reader that the data of RFID tag are recovered, be then back to step B；If being absent from, then showing that damaged or this RFID tag the information of ID of this RFID tag does not have collected backup, flow process terminates。
Wherein, reader, for being acquired RFID tag data；Check code maker is arranged in RFID management system；The content information of product includes the ID of product, product coding and product type；And cloud storage file system is the part in high in the clouds。
With reference to Fig. 2, it is further used as preferred embodiment, described step A, comprising:
RFID tag is initialized by A1, RFID management system, then drives reader to write the content information of product to RFID tag；
The content information of ID according to RFID tag of A2, check code maker and product, adopts the hash algorithm improved to generate the check code of RFID tag；
A3, by the check code of the content information of product, the ID of RFID tag and RFID tag together as RFID tag data, back up to cloud storage file system。
Being further used as preferred embodiment, the content information of described product includes the unique identifier of product, product coding and product type。
With reference to Fig. 3, it is further used as preferred embodiment, described step A2 and step C verifies code generator and adopts the hash algorithm improved to generate check code or this step of new check code of RFID tag, comprising:
S1, employing hash function H1(key, n) processes the ID of RFID tag and the content information of product respectively, thus obtaining corresponding cryptographic Hash H1(i), wherein, key is keyword, n=1,2,3,4；
S2, according to cryptographic Hash H1(i), with the length of Hash table, adopt hash function H2(i)=H1(i) %L is to H1(i) carry out Hash to make a list, thus obtaining Hash table htable, wherein, H1(i), for the step S1 cryptographic Hash obtained, " % " is complementation operator, the length that " L " is Hash table；
S3, by H1(i) reconfigure according to Hash table htable, thus obtaining the check code of RFID tag or new check code。
With reference to Fig. 4, it is further used as preferred embodiment, described step S1, comprising:
S11, the field that the ID of RFID tag or the content information of product comprise being divided into n section, every section by len(key)/n figure place forms, wherein, len(key) represent the total length of keyword key；
S12, by every section of field data occur letter replace to letter in alphabet occur sequence number；
S13, by the len(key of every section)/n numeral be added, that then will add up and to 100 remainder numbers；
S14, being added by the remainder of n section, the result that then will add up is to 36 remainder number i, if remainder i is 0, then and cryptographic Hash H1(i) also it is 0；If remainder i is within the scope of 1-26, then cryptographic Hash H1(i) it is the capitalization of corresponding sequence number；If remainder i is within the scope of 27-35, then cryptographic Hash H1(i) it is (i-26)。
Wherein, 36 remainder numbers are because letter and number totally 36 (26 letters, 10 Arabic numerals), and the content information of the ID of RFID tag or product generally by letter, numeral or the two form。
Be further used as preferred embodiment, described step S11, itself particularly as follows:
If the ID of RFID tag or product coding, then the field that it comprises being divided into 4 sections, every section by len(key)/4 figure places form；
If the unique identifier of product, then the field that it comprises being divided into 3 sections, every section by len(key)/3 figure places form；
If product type, then the field that it comprises being divided into 1 section, every section by len(key) figure place forms。
Wherein, the ID of corresponding RFID tag and the content information of product, the value difference of n: the ID of corresponding RFID tag and product coding, the value of n is 4；The unique identifier of corresponding product, the value of n is 3；Corresponding product type, the value of n is 1。
It is further used as preferred embodiment, in described step S2, hash function H2(i) the mode adopting linear hashing liquidates to advance by leaps and bounds to go and processes。
Below in conjunction with specific embodiment, the present invention is described in further detail。
Reference Fig. 5, the first embodiment of the present invention:
The main flow of RFID tag warehouse-in is as follows:
(1) buying: the RFID tag that centralized purchasing is new。
(2) warehouse-in: a, utilize reader to buying RFID tag be scanned operation, it is ensured that RFID tag normal operation；RFID tag after scanning is carried out batch in-stockroom operation by b, RFID management system, and warehouse-in information includes: tag number, entry time and in-stockroom operation person's information。
Reference Fig. 6, the second embodiment of the present invention:
The main flow of RFID tag distribution is as follows:
(1) product examination to be identified: warehouse-in greffier check the product information that will carry out RFID tag mark。
(2) RFID tag initializes, and prepares for write product information。
(3) being write product information from reader toward RFID tag, the information of write includes the unique identifier of product, product coding and product category type。
(4) after product information write RFID tag, the inspection to its correctness。
(5) check code maker generates the check code of RFID tag according to the ID of RFID tag and the content information of product, and check code is also written to the check bit of label in the lump。
(6), after the check code of label generates, backup in the lump in cloud storage file system with the ID of label, product content information。
(7) successfully being backuped to by RFID tag after in cloud storage file system, label data is formally effective。
(8) distribution RFID tag operation every time is recorded by RFID management system。
The maintenance process of information integrity in RFID tag use procedure is mainly introduced by the third embodiment of the present invention。Its maintenance process is as follows:
(1) by reader scans RFID tag, the information of RFID tag is read；
(2) judge whether the information of this RFID tag contains check code；
(3) content information of this label when FRID label information does not comprise check code (information of check code is also possible to damaged), is inquired about according to the ID of RFID tag to high in the clouds (cloud storage file system)。
(4) when check code contained in newly-generated check code and label is inconsistent, it is meant that the content of label is damaged, at this moment inquires about the content information of this label according to the ID of label to high in the clouds (cloud storage file system)。Inquire the content information of RFID tag, then drive reader that the content of label is recovered。
When not inquiring the content information of RFID tag, then have two possibility: a, this label ID damaged；B, this label information do not gather backup。
Reference Fig. 7 and Fig. 8, the fourth embodiment of the present invention:
For the unique identifier of product and L=4, the present invention adopt improvement hash algorithm generate check code detailed process be:
(1) unique identifier of product is divided into 4 sections: set the unique identifier of product as ABC090931DH090024512, then the respectively ABC09 of 4 sections after dividing, 0931D, H0900,24512。
(2) replace letter be in alphabet appearance sequence number: the field after replacement respectively 1}{2}{3}09,0931{4}, 8}0900,24512。
(3) each field is added that will add up and to 100 remainder numbers again: the result of remainder number respectively 15,17,17,14。
(4) remainder of 4 sections is added, then will add up and to 36 remainder number i:i=(15+17+14) %36=27, i=27 are within the scope of 27-35, therefore cryptographic Hash H1(i) it is 1。
(5) hash function H is used2(i)=H1(i) cryptographic Hash 1 is mapped to the cryptographic Hash H in hash function table, after mapping by %42(i) it is still 1, the 2nd position (first is 0) of corresponding hash function table, as shown in Figure 8。
Compared with prior art, the invention have the advantages that
A, RFID management system support cloud storage, it is possible to play RFID tag data backup effect；
B, include judging the step whether new check code that check code maker generates is consistent with the check code that reader reads, the integrity making the RFID management system support FRID label information to damaging verifies, and can label substance be recovered by the label information destroyed from the information of high in the clouds inquiry backup
It is above the preferably enforcement of the present invention has been illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the premise without prejudice to spirit of the present invention, and these equivalent deformation or replacement are all contained in the application claim limited range。
Claims (6)
1. the RFID tag data based on cloud storage technology recovers and method of calibration, it is characterised in that including:
A, adopt reader and check code maker RFID tag to be initialized and data acquisition, and by the check code of the content information of product gathered, the ID of RFID tag and RFID tag together as RFID tag data, back up to cloud storage file system；
B, reader scans product RFID tag, read RFID tag data and also judge whether the data read include the check code of RFID tag, if so, then perform step C, otherwise, then perform step D；
C, check code maker adopt the hash algorithm improved to generate new check code, and judge that whether new check code is consistent with the check code that reader reads, and if so, then show that the content of this RFID tag stands intact, and flow process terminates, otherwise, then perform step D；
D, ID according to RFID tag, by WIFI network or 2G/3G network to whether cloud storage file system query exists the product content information of this RFID tag, if existing, then drive reader that the data of RFID tag are recovered, be then back to step B；If being absent from, then showing that damaged or this RFID tag the information of ID of this RFID tag does not have collected backup, flow process terminates。
2. a kind of RFID tag data based on cloud storage technology according to claim 1 recovers and method of calibration, it is characterised in that described step A, comprising:
RFID tag is initialized by A1, RFID management system, then drives reader to write the content information of product to RFID tag；
The content information of ID according to RFID tag of A2, check code maker and product, adopts the hash algorithm improved to generate the check code of RFID tag；
A3, by the check code of the content information of product, the ID of RFID tag and RFID tag together as RFID tag data, back up to cloud storage file system。
3. a kind of RFID tag data based on cloud storage technology according to claim 2 recovers and method of calibration, it is characterised in that the content information of described product includes the unique identifier of product, product coding and product type。
4. a kind of RFID tag data based on cloud storage technology according to claim 3 recovers and method of calibration, it is characterized in that, verifying code generator in described step A2 and step C adopts the hash algorithm improved to generate check code or this step of new check code of RFID tag, comprising:
S1, employing hash function H1(key, n) processes the ID of RFID tag and the content information of product respectively, thus obtaining corresponding cryptographic Hash H1(i), wherein, key is keyword, n=1,2,3,4；
S2, according to cryptographic Hash H1(i), with the length of Hash table, adopt hash function H2(i)=H1(i) %L is to H1(i) carry out Hash to make a list, thus obtaining Hash table htable, wherein, H1(i), for the step S1 cryptographic Hash obtained, " % " is complementation operator, the length that " L " is Hash table；
S3, by H1(i) reconfigure according to Hash table htable, thus obtaining the check code of RFID tag or new check code；
Described step S1, comprising:
S11, the field that the ID of RFID tag or the content information of product comprise being divided into n section, every section by len(key)/n figure place forms, wherein, len(key) represent the total length of keyword key；
S12, by every section of field data occur letter replace to letter in alphabet occur sequence number；
S13, by the len(key of every section)/n numeral be added, that then will add up and to 100 remainder numbers；
S14, being added by the remainder of n section, the result that then will add up is to 36 remainder number i, if remainder i is 0, then and cryptographic Hash H1(i) also it is 0；If remainder i is within the scope of 1-26, then cryptographic Hash H1(i) it is the capitalization of corresponding sequence number；If remainder i is within the scope of 27-35, then cryptographic Hash H1(i) it is (i-26)。
5. a kind of RFID tag data based on cloud storage technology according to claim 4 recovers and method of calibration, it is characterised in that described step S11, itself particularly as follows:
If the ID of RFID tag or product coding, then the field that it comprises being divided into 4 sections, every section by len(key)/4 figure places form；
If the unique identifier of product, then the field that it comprises being divided into 3 sections, every section by len(key)/3 figure places form；
If product type, then the field that it comprises being divided into 1 section, every section by len(key) figure place forms。
6. a kind of RFID tag data based on cloud storage technology according to claim 4 or 5 recovers and method of calibration, it is characterised in that in described step S2, hash function H2(i) the mode adopting linear hashing liquidates to advance by leaps and bounds to go and processes。
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| CN105406934A (en) * | 2015-10-27 | 2016-03-16 | 上海斐讯数据通信技术有限公司 | Passive optical network system main and standby control board synchronization method and system |
| CN107506709A (en) * | 2017-08-15 | 2017-12-22 | 南昌航空大学 | Aircraft engine rotor system fault-signal characteristics information extraction method |
| CN112836535B (en) * | 2019-11-25 | 2023-06-06 | 珠海晶通科技有限公司 | Quick inventory method for radio frequency identification electronic tag |
| CN111950648B (en) * | 2020-08-20 | 2024-03-05 | 西安邮电大学 | Three-section code verification method and device for express package label |
| CN115310109B (en) * | 2022-08-16 | 2024-01-26 | 安徽人和智能制造有限公司 | File secure storage confidentiality system and method based on Internet of things technology |
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