CN103927633B - A kind of Item Information traceability system perceived with relevance and method - Google Patents
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Abstract
The present invention discloses a kind of Item Information traceability system perceived with relevance and method.Information server receive middleware processes by capturing interface after RFID initial data；RFID mark datas are formed with reference to logical process to be stored in information database；RFID is mapped to discovery server by data publication by registration interface；The shared inquiry of RFID mark datas is opened to application by query interface.It was found that the RFID that server receives information server by registration interface maps data publication；RFID is mapped into data storage in mapping database after correlation analysis；The RFID between different discovery servers, which is provided, by communication interface maps data sharing；The inquiry of RFID mapping data is opened to application by query interface.The present invention ensure that the integrality of retrospect Query Result on the basis of the change of the containment relationship such as combination or fractionation causes RFID data generation to dynamically associate between taking into full account article.
Description
Technical field
The invention belongs to technical field of the computer network, and in particular to a kind of Item Information retrospect perceived with relevance
System and method.
Background technology
Can International Organization for standardization GS1 gives a clearly definition to trackability (Traceability), i.e.,
By identification record come the history of one article of inquiring and authenticating, position and other application situation.It follows that retrospect service is most
Include at 2 points for the key problem of concern, i.e., how to identify an article and how to search corresponding identification record data.
Radio frequency identification technology (Radio-frequency identification, RFID) is exactly such a without directly
The automation mark and data acquisition technology of contact, it can be used to follow the trail of and position destination object.It is mainly characterized by：
1) it is directed to unique mark problem：Using RFID technique as article mark means, with traditional bar code, two dimension
Bar code is compared, and biggest advantage is whole no more than that by radio frequency signal automatic identification destination object and can obtain related data
Individual identification process is substantially without manual intervention.
2) searched problem for identification record：It can select to be based on " data-on-tag " pattern, identification record is directly deposited
Storage is in an rfid tag；It can also select to be based on " data-on-network " pattern, by identification record storage in a network, then
The routing hints of search are used as by the use of the mapping relations between RFID marks and network storage address.
Therefore, RFID technique receives the highest attention of academia and industrial circle in recent years, has been widely used in thing
Many application fields such as flow management, foodstuff traceability, fake certification, product recall, it can be used for realizing entirely so as to form one
Item tracing and the Ubiquitous Network of positioning in the range of ball.
At present, the system that retrospect service is provided based on RFID technique, it is main to include what EPCglobal tissues proposed
EPCglobal networks, DIALOG systems, and ePedigree systems etc..But existing scheme is general lack of RFID data
The consideration of relevance, the service quality (integrality) of retrospect is caused to be affected.Existing program is disadvantageous in that to RFID
Containing relevance between data, which lacks, to be paid attention to, the basis only compressed relevance is contained as a kind of RFID data, and is being entered
Do not account for adding the analysis to containing relevance during row retrospect.It is related to if this results in query function between data
Relevance, existing scheme can not just ensure the integrality of Query Result.
As shown in Figure 1, by taking the Drug Administration application based on RFID technique as an example.The complete lifecycle of medicine includes
" production-transport-sale-use " four-stage.Assuming that each participant of supply chain, from manufacturer, big retail trader, small point
Sell business, retailer to buyer all independent maintenances information datas of oneself.RFID label tag is encoded using EPC, and single product (item) are originally
Chest (case), the container pallet (pallet) of body and the single product of carrying will be sticked different RFID label tags respectively.Dan Pin
(being identified as SGTIN1) exists<L1,T2>A chest (being identified as SSCC1) is introduced into, then chest exists<L2,T4>It is placed
(SSCC2 is identified as on container pallet).After article is changed hands to small-sized retail trader from large-scale retail trader, undergo again
The encapsulation of another container pallet (being identified as SSCC3).Final single product are sold to common buyer.So, RFID numbers
Stored according to that may be dispersed in multiple different servers, there will be dynamic containing relevance between label.To common
For user, in this case it is not apparent that the combination and split process that article passes through in supply chain.
For example Drug Administration mechanism is connected to reports, it is found that single product are identified as SGTIN1 medicine and although had not exceeded
The effect phase, but gone bad and lost drug effect.By analysis, the medicine most probable reason that goes bad is in transit there is no guarantee that all the time
It is stored in 2~10 DEG C of low temperature environment.In order to navigate to the particular location of deterioration generation and responsible person concerned, in the hope of in the present
Avoid that the problem of similar occurs again in transport afterwards, it is necessary to deposit in each logistics warehouse during retrospect inquiry drug delivery
Temperature data during storage.If medicine is all loaded into high-capacity container consolidated delivery, each warehouse all remains the historical record of container.
Item information data so only associated by inquiry mark SGTIN1, can not just solve this actual demand.
The content of the invention
The present invention is in view of the above-mentioned problems, provide a kind of Item Information traceability system perceived with relevance and corresponding
Querying method is traced, the containment relationship such as combination or fractionation, which changes, between article is taken into full account causes RFID data to produce dynamic pass
On the basis of connection, ensure the integrality of retrospect Query Result.In the case where user only inputs single product mark, the mark is not returned only to
The relative article information of knowledge, additionally it is possible to return and the information of container with temporal feature all occurred with the article.
The technical solution adopted by the present invention is as follows：
A kind of Item Information traceability system perceived with relevance, it includes at least one discovery server and at least one
Individual information service system；
The discovery server includes：
Registration interface, it is connected with the information server in described information service system to receive RFID mapping data publications；
Query interface, opened to application program to carry out the inquiry of RFID mapping data；
Query processing module, for handling the inquiry request for RFID marks；
Correlation analysis module, for analyze article RFID mark mapping data between containment relationship that may be present,
Being associated property is analyzed；
Mapping database, for storing the article RFID identity obtained through correlation analysis and storage article information
Mapping relations between the mark of information server address；
Described information service system includes：
Reader, for obtaining the article identity carried in RFID label tag mark by twireless radio-frequency communication mode；
Middleware, for being pre-processed to the raw RFID data that reader obtains, and formed with certain semanteme
RFID event；
Information server, including：Registration interface, it is connected with the registration interface of the discovery server to carry out RFID mappings
The registration issue of data；Interface is captured, is connected with middleware and is identified with receiving the RFID of its upload；Query interface, to using journey
Sequence opening is to carry out the shared inquiry of RFID mark datas；Information database, for storing the marks of the RFID after middleware processes
Know data.
Further, the discovery server also includes communication interface, is opened to other discovery servers, carries out discovery clothes
Mapping data sharing between business device.
Further, the discovery server also includes filtering module, for utilizing time attribute information to the association
Property analysis filtered, avoid information redundancy.
Further, the pretreatment that the reader is carried out to raw RFID data includes filtration treatment, duplicate removal processing.
A kind of Item Information retroactive method that there is relevance to perceive using said system, its step include：
1) information owner is to the RFID event record for finding that server registration is possessed, while announces corresponding safe plan
Slightly；
2) inquiry request that inquiry request person initiates to identify for RFID to the discovery server, while submit rights relating the person
Can voucher；
3) it is described to find that server retrieval is identified as the map record of keyword with RFID step 2) described, and be associated
Property analysis, search the RFID mark association container identification map record；
4) whether the discovery server check inquiry has legal to information data corresponding to RFID marks
Access rights；If the validated user authorized then returns to addressable relative address list to inquiry request person, otherwise refuse
Service is provided or directly abandons inquiry request；
5) address list obtained according to step 4), inquiry request person's all information servers corresponding with address are simultaneously
Communication connection is established, while identity powers and functions voucher is submitted respectively to all information servers；
6) all information server certifications are by rear, by RFID identify associated by article information data return to inquiry please
The person of asking.
The present invention proposes a kind of new traceability system framework, including RFID label tag, reader, middleware, information service,
It was found that service and application；Establish and deposited in the data structure of tracing information, including the original record of reader, information server
Map record needed for the identification record of storage and inquiry etc.；Propose a kind of improved discovery service model (directory service mould
Type), add the correlation analysis module and redundant data filtering module of RFID data；And query operator is traced accordingly
Method：The single product inputted according to user identify, and return to the relative article information of the mark, and all occurred to have with the article
The information of the container article of temporal feature.Compared with prior art, the present invention is in the case where user only inputs single product mark, no
It is returned only to the relative article information of the mark, additionally it is possible to return to the container letter all occurred with the article with temporal feature
Breath；While Query Result integrality is ensured, its accuracy is also ensured that, the filtering of passage time attribute, avoids redundancy.
Brief description of the drawings
Fig. 1 is the Drug Administration application schematic diagram based on RFID technique；
Fig. 2 is the traceability system Organization Chart perceived with relevance；
Fig. 3 is the example data structure figure of tracing information；
Fig. 4 is the schematic diagram of the retroactive method perceived with relevance；
Fig. 5 is the flow chart for the retrospect inquiry for adding correlation analysis.
Embodiment
Below by specific embodiments and the drawings, the present invention will be further described.
1. the framework of traceability system
Fig. 2 show with relevance perceive Item Information traceability system Organization Chart, include findings that server (or
It was found that service module), two independent information service systems (corresponding to company A and company B respectively), find server respectively with two
Individual independent information service system is connected by registration interface.Any independent information service system include information server, in
Between part, reader and label, reader obtained by twireless radio-frequency communication mode carried in label article identity mark, read
Device is connected with middleware, and middleware is connected with information server and ERP system.
The core of wherein traceability system is information server (Information Service) and finds server
(Discovery Service), other application program is aided in realize retrospect inquiry, locating query, anti-fake certificate on this basis
Etc. function.
As shown in Fig. 2 find server specifically include registration interface, query interface, communication interface, query processing module,
Correlation analysis module, filtering module and mapping database.Query processing module is used to handle inquiry request person's initiation
For the inquiry request of RFID marks.Mapping database is used for storage article identity with storing the information of detailed Item Information
Mapping relations between server address mark.Correlation analysis module is used to analyzing that may be present between identity map data
Containment relationship.Filtering module is used to filter above-mentioned association analysis by time attribute information, avoids information redundancy.Information
Service system includes reader, middleware and information server.Reader is used to obtain RFID by twireless radio-frequency communication mode
The article identity mark carried in label.Middleware is used to filtering the raw RFID data that reader obtains, duplicate removal etc.
Pretreatment, and formed with certain semantic RFID event.Information server includes：Registration interface, capture interface, query interface
And information database.
Information server receives the upload of the RFID initial data after middleware processes by capturing interface；At logic
After reason, RFID mark datas are formed, are stored in the information database of information server；By registration interface, RFID is mapped
Data publication to find server；By query interface, the shared inquiry of RFID mark datas is opened to application.It was found that server
By registration interface, the RFID for receiving information server maps data publication；After correlation analysis, RFID is mapped into data
It is stored in the mapping database for finding server；Pass through communication interface, there is provided difference finds the RFID mappings between server
Data sharing；By query interface, the inquiry of RFID mapping data is opened to application.
Specifically, after article enters reader read range, reader can be obtained automatically by twireless radio-frequency communication
The article identity mark carried in power taking subtab, so as to generate original RFID mark datas.In order to remove data redundancy, need
The pretreatment operations such as duplicate removal, the filtering of middleware are first passed through, and combine other item related informations in enterprise information system,
Formed with certain semantic RFID event, then last deposit information server.But unlike that can be by webpage in internet
Between hyperlink relation crawl info web search service, the data source in RFID network is the information service containing enterprise's secret
Device, the partner that retrospect inquiry is only facing by mandate open.So want to realize to RFID data information in global scope
Flexible retrospect, basic premise is that information owner is needed certain index information, i.e., RFID data and place data source it
Between mapping relations, be published to index server and supply other querying nodes.In order to ensure the privacy of information owner, while
Need to issue corresponding security strategy.From realizing in terms of angle, information service and the infrastructure for finding to service can be by large-scale
Enterprise or company voluntarily safeguard, it is found that service can also be held in the palm as a kind of UNICOM's information service of tie by third party
Pipe.
2. the data structure of tracing information
Involved data can be divided into three classes in retrospect, be the original record of reader reading electronic labels respectively,
The RFID event record stored in information server, and find the index information record stored in server.It was found that server
According to inquiry request, the positional information or running orbit of commodity of the data generation provided with the RFID label tag of return are utilized.Specifically
For, involved various data are as shown in figure 3, be respectively described below：
1) original record (Initial_record)：Undressed original observed data includes the attribute of three dimensions,
That is observed object oid, observed events time of origin eventTime and observation place readPoint.
2) Item Information (Thing_information)：Except whether reflection RFID label tag is sometime appearing in certain
One position is registered outside information, and the Internet of Things application based on RFID network generally also needs to pay close attention to the other of object accompanying by label
Attribute information, such as type of items, place of production etc., so as to provide more complicated inquiry response.These application datas can uniformly take out
As for " key-value " to form<propertyID,propertyValue>.
3) logout (event_record)：By middleware processes program, after integrating original record and Item Information
It could be formed with the RFID event record of meaning.According to whether containment relationship transformation occurs, common observation thing can be divided into again
Part (Observation_event) and polymerization events (Aggregation_event).The object of observation of the latter identifies including single product
Cid and container identification pid, and add the concept of event behavior, action options can using value as " add " (combination) or
" delete " (decomposition).Contain special field in the RFID label tag raw information that reader is read, to represent being observed events
Or polymerization events, to identify whether to occur containment relationship transformation.
4) map record (map_record)：It was found that storage mapping record i.e. index letter in the mapping database of server
Breath, these index informations are a brief abstract of detailed Item Information in information server.The core of this mapping relations
It is exactly the information-source addresses map recorded as the object identity oid and storage dependent event of key assignments.In order to increase being wrapped data
Hold the analysis of relevance, also saving possible behavior property action and the time eventTime that event occurs.If
Action values are sky, illustrate simply common observed events, then container identification pid is also sky.Registrant to find server
Registration, the address of registrant is exactly source address here.It was found that server is after log-on message is received, you can corresponding to generation
Map record.
5) distributor information (Publisher_profile)：, can be with order to ensure confidentiality of the publisher to index information
Corresponding security strategy is set on service is found.This often just needs publisher to announce certain identity information, such as issues
Person ID, name, address, mailbox, affiliation (unit or organization), and identity public key etc. can be used for encryption to solve
Close certification auxiliary information.
3. the trace back process perceived with relevance
Fig. 4 show the interaction flow realized in once complete trace back process between information publisher and information inquiry person
Schematic diagram, it is described as follows：
1) information owner (information server A, B) registers possessed RFID things to discovery server (it was found that server)
Part records, while announces corresponding security strategy.
2) inquiry request person initiates to identify the inquiry request in (or mark section) for particular RFID to discovery server,
Submit identity powers and functions voucher simultaneously.
3) find that server is retrieved first and the map record of keyword is identified as with the RFID of user's request, then pass through association
Property analysis module be associated be analysis, search the RFID mark association container identification map record.
Map record reflects the mapping relations between mark and address, that is, which the information for being identified article is stored in
In the server of address.In addition, it will also include hour of log-on, registrant, incidence relation and other satellite informations.
4) find whether server check inquiry has legal access to information data corresponding to above-mentioned RFID marks
Power, if the validated user authorized, then addressable relative address list can be returned to inquiry request person, i.e., according to inquiry
Mark, remove to retrieve the database in DNS etc LIST SERVER, obtain the identity map record of correlation (wherein containing ground
Location information).If not the validated user of mandate, then refusal, which provides, services or directly abandons inquiry request.
5) address list obtained according to step 4), inquiry request person's all information servers corresponding with address are established logical
Letter connection, while to so information server submits identity powers and functions voucher.
6) information server certification passes through detailed item information data then associated by RFID marks are returned.
After correlation analysis is added, the main thought that the service of discovery carries out map record retrieval is：First according to user
The RFID of request is identified as keyword and searches map record；Then analyse whether to there are the map record of polymerization behavior；If
Have, then will likely container identification add queue to be checked, then recursively inquired about.Add the algorithm performs of correlation analysis
Flow to recursive query therein as shown in figure 5, be described as follows：
A) the setting time upper limit and time lower limit, inquire about the map record using id as keyword；
B) if there is to inquire about map records of the ID as keyword, then extract non-polymeric record therein and add DS responses
Queue, into step c)；Otherwise the DS response queues of sky are returned；
C) also aggregating records are judged whether, if the return DS response queues without if；If then entering step d)；
D) map record corresponding to polymerization behavior is grouped according to container identification pid；
E) each is grouped, determines whether combination event, combination event refers between multiple articles because position is total to
Polymerization events occurred are deposited, the container article that outer layer generally be present；If combination event, then the lower limit identified the pid
Time modification is earliest combination event time of origin；If it is not, determining whether fractionation event, fractionation event refers to
State the status releasing of syntagmatic；If the pid upper limit times identified are then revised as fractionation thing the latest by fractionation event
Part time of origin, terminate the recursive query if event is not split.
Mainly there are two kinds, i.e. locating query (track) and tracking inquiry in view of the citation form of retrospect inquiry
(trace), the former only focuses on the current latest position of article, and the inquiry target of the latter is then the entire motion track of article,
So before discovery service starts, it should first determine whether user's query type.If locating query is, it is necessary in each inquiry knot
Shu Hou, map record is ranked up according to time attribute, retains a newest map record all the time.
In addition, also having a little, critically important factor needs to consider, i.e. the reusability of container.Because RFID is led to
It can often be coexisted therewith in the Life cycle for being identified article, and the container such as chest, container pallet is in the mistake of logistics transportation
Often long-term use of in journey, this containment relationship allowed between single product and container is temporary transient.If only with container
RFID mark directly retrieved, it is likely that a large amount of irrelevant informations can be obtained.On the one hand, redundancy reduces inquiry
Can, cause network service load to increase.On the other hand, logistics company may deploy to close with the enterprise of the competitive business of more furniture
Make.Inquiry only has access rights, if uncontrolled generally according to service logic to the information of container in a period of time
Arbitrarily amplification access rights may cause the privacy leakage of information owner.Therefore, carried out in the present invention using time attribute
Filtering, is avoided obtaining excessive redundant results, i.e., by the adjustment time upper limit and lower limit, filtering is realized in the section for reducing inquiry.
The above embodiments are merely illustrative of the technical solutions of the present invention rather than is limited, the ordinary skill of this area
Technical scheme can be modified by personnel or equivalent substitution, without departing from the spirit and scope of the present invention, this
The protection domain of invention should be to be defined described in claim.
Claims (4)
1. a kind of Item Information retroactive method perceived with relevance, this method are applied to a kind of Item Information traceability system,
The Item Information traceability system includes at least one discovery server and at least one information service system；
The discovery server includes：
Registration interface, it is connected with the information server in described information service system to receive RFID mapping data publications；
Query interface, opened to application program to carry out the inquiry of RFID mapping data；
Query processing module, for handling the inquiry request for RFID marks；
Correlation analysis module, for analyze article RFID mark mapping data between containment relationship that may be present, carry out
Correlation analysis, the single product inputted according to user identify, and return to the relative article information of the mark, and all sent out with the article
Gave birth to the information of the container article with temporal feature；
Mapping database, for storing the article RFID identity obtained through correlation analysis and the information of storage article information
Mapping relations between server address mark；
Described information service system includes：
Reader, for obtaining the article identity carried in RFID label tag mark by twireless radio-frequency communication mode；
Middleware, for being pre-processed to the raw RFID data that reader obtains, and formed with certain semantic RFID
Event；
Information server, including：Registration interface, it is connected with the registration interface of the discovery server to carry out RFID mapping data
Registration issue；Interface is captured, is connected with middleware and is identified with receiving the RFID of its upload；Query interface, opened to application program
Put to carry out the shared inquiry of RFID mark datas；Information database, number is identified for storing the RFID after middleware processes
According to；
The Item Information retroactive method perceived with relevance comprises the following steps：
1) information owner is to the RFID event record for finding that server registration is possessed, while announces corresponding security strategy；
2) inquiry request person to it is described discovery server initiate for RFID mark inquiry request, while submit identity powers and functions with
Card；
3) it is described to find that server retrieval is identified as the map record of keyword with RFID step 2) described, and carry out relevance point
Analysis, search the map record of the container identification of RFID mark associations；
4) whether the discovery server check inquiry has legal access to information data corresponding to RFID marks
Authority；If the validated user authorized then returns to addressable relative address list to inquiry request person, otherwise refusal provides
Service directly abandons inquiry request；
5) address list obtained according to step 4), inquiry request person's all information servers corresponding with address are established logical
Letter connection, while identity powers and functions voucher is submitted respectively to all information servers；
6) all information server certifications are by rear, by RFID identify associated by the information data of article return to inquiry request
Person.
2. the method as described in claim 1, it is characterised in that：Step 2) the inquiry request for RFID marks is to be directed to
The inquiry request of particular RFID mark, or the inquiry request for RFID marks section；Before discovery service starts first
Judge user's query type：Locating query and tracking are inquired about.
3. the method as described in claim 1, it is characterised in that：Step 3) the correlation analysis, is asked according to user first
RFID be identified as keyword search map record；Then analyse whether to there are the map record of polymerization behavior；If so, then
Will likely container identification add queue to be checked, then recursively inquired about.
4. the method as described in claim 1, it is characterised in that：Time attribute is used to filter inquiry request to avoid obtaining
Take excessive redundant results.
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