WO2009130086A1 - Procédé et dispositif pour fournir des données compatibles - Google Patents

Procédé et dispositif pour fournir des données compatibles Download PDF

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Publication number
WO2009130086A1
WO2009130086A1 PCT/EP2009/052894 EP2009052894W WO2009130086A1 WO 2009130086 A1 WO2009130086 A1 WO 2009130086A1 EP 2009052894 W EP2009052894 W EP 2009052894W WO 2009130086 A1 WO2009130086 A1 WO 2009130086A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
data memory
validation rules
memory
validation
Prior art date
Application number
PCT/EP2009/052894
Other languages
German (de)
English (en)
Inventor
Rainer Falk
Florian Kohlmayer
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2009130086A1 publication Critical patent/WO2009130086A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/14—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Definitions

  • the invention relates to a method and a device for providing compatible data by a data memory, in particular by an RFID tag.
  • RFID tags store data that can be queried wirelessly. For example, RFID tags are attached to items and store identifying information for the item. By means of an RFID reading and writing device, data can be read from the RFID tag and data can be written into the RFID tag. RFID tags are also used in manufacturing. In this case, an object or a workpiece passes through a plurality of process steps, it being possible for an RFID reader and writer to be provided for some or all of the process steps. At the respective process stage, the RFID reading and writing device reads out data from the RFID tag attached to the workpiece and takes one
  • the data read from the RFID tag data can be considered. After the process step or the machining of the workpiece has been carried out, further data can then be written to the RFID tag which, for example, indicates information about the production process that has been carried out.
  • incompatible data that is to say data with different data formats or permissible data value ranges
  • RFID tags If, for example, a production plant that comprises several production stages is extended or modified, incompatible data can be stored on the RFID tags.
  • An exchange or change of a single production facility or a single process stage can lead to data in different forms RFID tag are written and thus no longer be evaluated correctly in subsequent manufacturing steps or at subsequent process steps. In this case, an occurring error is usually difficult to find, as a misconduct is usually only a few process steps later recognizable.
  • the invention provides a method for providing compatible data by a data memory, wherein when data is transmitted via a wireless interface of the data memory, the transmitted data is validated by means of stored validation rules.
  • the validation rules are stored in a read-only memory area of the data memory.
  • the data is validated by a validation unit of the data memory according to the stored validation rules.
  • the data when reading out data from the data memory by a reading device, the data is validated by a validation unit of the reading device in accordance with the stored validation rules. In one embodiment of the method according to the invention, when reading out data from the data memory by a reading device, the data is validated by a validation unit of a data processing system which is connected to the reading device.
  • the data to be written in is validated by a validation unit of the data memory in accordance with the stored validation rules.
  • the data to be written in are validated by a validation unit of the reading and writing device in accordance with the stored validation rules.
  • the data to be written in is validated by a validation unit of a data processing system which is connected to the reading and writing device.
  • the data to be written in temporarily in a buffer of the data memory or the reading and writing device are cached.
  • the validation rules or references to the validation rules are stored in the data memory.
  • the data memory is attached to a workpiece which passes through a plurality of process steps.
  • the data transmitted in each process step are validated by means of validation rules of the respective process step.
  • the data is validated by means of read-out validation rules when reading out data from the data memory.
  • the data is validated by means of registered-validation rules when writing data into the data memory.
  • the validation rules are stored on a server associated with the data store.
  • the stored validation rules are protected against tampering by means of a cryptographic checksum.
  • the cryptographic checksum is formed by a hash value.
  • a digital signature is generated from the cryptographic checksum by means of a secret key.
  • the data has status data which describe a process state of a workpiece.
  • the data has process data which describe a subsequent process step to be carried out on a workpiece.
  • the validation rules specify syntactic and semantic restrictions of the transmitted data.
  • the data memory is formed by an RFID tag.
  • the invention also provides a data store for providing compatible data with a wireless interface for transmitting data that is validated using stored validation rules.
  • the validation rules are stored in a memory area of the data memory or on a server assigned to the data memory.
  • the corresponding memory area is designed in particular as read-only so that no undesired change in the validation rules can take place.
  • an information is stored on the data memory, which refers to the stored on an external server validation rules. This allows the validation rules to be referenced for further use in conjunction with the data store.
  • the data memory has a validation unit for validating the transmitted data.
  • the data memory is an RFID tag.
  • the invention further provides a reader and writer for reading data from a data store and writing data to a data store via a wireless interface, wherein the data transmitted over the wireless interface is validated using stored validation rules.
  • the reading and writing device has a validation unit for validating the transmitted data.
  • the reading and writing device is an RFID reading and writing device.
  • the invention further provides a system for providing compatible data through data storage devices each attached to an article that undergoes multiple process steps, wherein for different process steps, a read and write device is provided for transmitting data over a wireless interface using configurable validation rules are validatable.
  • the data memories are RFID tags.
  • the invention further provides a computer program with program instructions for carrying out a method for providing compatible data by a data memory, wherein in a transmission of data via a wireless interface of the data memory, the transmitted data is validated by means of stored validation rules.
  • the invention also provides a data carrier for storing such a computer program.
  • FIG. 2 is a flowchart illustrating a read operation in a possible embodiment of the method according to the invention for providing compatible data
  • FIG. 3 is a flowchart of a write operation in a possible embodiment of the method for providing compatible data according to the invention.
  • Fig. 5 is a block diagram of a possible embodiment of a data memory according to the invention.
  • a system 1 for providing compatible data comprises at least one reading and writing device 2 for the transmission of data via a wireless interface.
  • Read and write device 2 data can be read from a data memory 3 and data is written to the data memory 3.
  • the system 1 for providing compatible data has three reading and writing devices 2-1, 2-2, 2-3.
  • the data memory 3 is, for example, an RFID tag, which is attached to an object 4, in particular a workpiece.
  • the workpiece 4 passes through several process steps, that is, it moves from one process step to the next process step.
  • an associated reading and writing device 2-i is provided for each process stage, which is connected via a line.
  • tion 5 is connected to an associated process control server 6.
  • These process control and monitoring servers 6 can each be connected via lines 7 to a data network 8 and exchange data with each other.
  • the data network 8 may be, for example, a local network of a production company. In an alternative embodiment, the network 8 is a network of networks, such as the Internet.
  • the article 4 can be any workpiece or any product.
  • the data memory 3 is preferably attached to a surface of the article 4. In an alternative embodiment, the data memory is integrated in the article 4.
  • the data memory can be any data memory 3, that is to say that the data memory 3 does not necessarily have to be an RFID tag.
  • the data memory 3 is not attached to an object or to a workpiece 4, but to a transport container for such an article, for example to a transport pallet.
  • the workpiece 4 or the transport container passes through several process steps PS, wherein in each case a reading and writing device 2 is provided for the transmission of data via the radio interface for the various process steps.
  • the transmitted data is validated by means of configurable validation rules VR.
  • validation rules VR are preferably stored in a read-only memory area of the data memory 3.
  • this validation unit is integrated in the data memory 3, that is to say for example in the RFID tag 3.
  • the validation unit validates the read-out data by means of stored validation rules VR, which are located in a read-only memory area of the data memory 3.
  • the validation unit is provided in the respective reader 2.
  • the data read from the data memory 3 are then validated by the validation unit contained in the reader 2 in accordance with the stored validation rules VR.
  • the validation rules VR are read from the read-only memory area of the data memory 3.
  • the validation rules VR are stored in a memory of the reader 2.
  • the data read out of the data memory 3 by the reading device 2 are validated by a validation unit of a data processing system which is connected to the reading device 2.
  • the validation unit is located, for example, in the process control server 6, which is connected to the reader 2 via the line 5.
  • a central server may also be provided, which performs the validations of the various reading and writing devices 2-1.
  • the data to be written on the data memory 3 is validated by a validation unit of the reading and writing device 2 in accordance with stored validation rules VR.
  • the data to be written is validated by a validation unit of a data processing system connected to the reader and writer 2.
  • the data to be written is validated by a validation unit of the process control server 6, which is connected via a line 5 to the reading and writing device 2.
  • the data read from the data memory 3 are validated by means of readout validation rules A-VR, while the data to be written into the data memory 3 are registered by means of write-in data.
  • Validation rules E-VR are validated. Thus, different validation rules VR can be provided for reading out and for writing data.
  • the validation rules VR are not stored on the data memory 3, but on a server associated with the data memory 3.
  • the stored validation rules VR are protected against manipulation by third parties by means of a cryptographic checksum. This cryptographic checksum is formed, for example, by a hash value. Using a secret key can also be generated from the cryptographic checksum, a digital signature.
  • the provided compatible data includes state data ZD and process data PD.
  • the state data ZD indicate, for example, a process state of an object or workpiece 4.
  • the process data PD describe, for example, a following process step to be carried out on the workpiece 4.
  • the data memory 3 is attached to the workpiece 4 so that it sequentially passes through several process steps PD.
  • validation rules VR 1 of the respective process step are provided for each process step PS 1 .
  • the data transferred during the process step are validated by the validation rules of the respective process step.
  • These validation rules may in turn comprise on the one hand readout validation rules A-VR 1 and on the other hand write-in validation rules E-VR 1 .
  • the validation rules VR indicate syntactic and semantic restrictions of the transmitted data.
  • the data to be written in are buffered temporarily in a buffer of the data memory 3 or of the reading and writing device 2.
  • FIG. 2 illustrates a read operation in an embodiment of the method according to the invention for providing compatible data.
  • the reading and writing device 2 reads the data stored on the data memory 3, for example, state data ZD of an associated workpiece 4 and process data PD of a process step PS to be undertaken on the workpiece 4.
  • the validation rules VR are read out.
  • the validation rules VR or a data validation policy DVP Data Validation Policy
  • the VR validation rules specify syntactic and semantic constraints on the stored tag data.
  • the validation rules VR or the data validation policy are explicitly stored.
  • a reference to the validation rules VR is stored in the data memory 3. This reference is, for example, a URI or URL (Uniform Resource Locator), wherein the validation rules VR are accessed via the URI or URL can.
  • the data validation policy DVP belonging to the data memory 3 can be identified directly or by means of URI / URL in a database on the basis of an ID of the data memory 3, for example a tag ID.
  • the data validation policy or the validation rules VR is not stored on the data memory 3 itself, but on a server which is associated with the respective data memory 3 or the RFID tag.
  • An advantage of this embodiment is that the data memory 3 or the RFID tag 3 does not have to be changed if the reading and writing device 2 obtains the validation rules VR and carries out the check during reading or writing.
  • the stored validation rules VR are protected against manipulation by means of cryptographic checksums.
  • the data memory 3 or the RFID tag 3 has stored a URL which refers to a current data validation policy DVP or to a current set of validation rules VR. By means of this link or this URL, the reading and writing device 2 can download the current data validation policy DVP.
  • the RFID tag 3 or the data memory 3 furthermore calculates a hash value, for example by means of SHAl. This calculated hash value is stored, for example, by the data memory 3 and can be used to check the integrity of the validation rules VR.
  • the reading and writing device 2 calculates the hash value of the data validation policy DVP or the validation rules VR loaded by a server and compares it with one of the RFID tag 3 loaded reference value.
  • This DVP Data Va- lidation Policy
  • the validation of the data can be carried out by the data memory 3 itself, by the reading and writing device 2 or else by a remote data processing system. In the exemplary embodiment illustrated in FIG. 2, the data is checked by means of the DVP or the validation of the data read out in step S3.
  • step S4 it is checked whether the data with the validation rules VR are compliant or fulfill the validation rules. If the read-out data does not satisfy the validation rules, an error handling is performed in step S5. Conversely, if the data satisfy the validation rules VR or if they are in conformity with them, the read-out data are used or evaluated. The process ends in step S7.
  • FIG. 3 shows a flow chart of a write operation in a possible embodiment of the method according to the invention for providing compatible data.
  • the validation rules VR or the DVP are read out by the reading and writing device 2 in a step S1.
  • data SD to be written is generated or provided and preferably buffered.
  • steps S1 and S2 are reversed.
  • step S3 it is checked whether the data to be written corresponds to the validation rules VR.
  • the buffering and checking of the data SD to be written on can take place by the data memory 3 itself, by the reading and writing device 2 or by an associated server 6.
  • step S4 it is decided whether or not the data SD to be written is compliant with the validation rules VR. If the data SD to be written in does not conform to the validation rules VR, an error handling takes place in step S5. Conversely, if the data to be written SD complies with the validation rules VR, the data is written in a memory area of the data memory 3 in step S6. The process ends in step S7.
  • the data stored on the data memory 3 are stored in the form of attribute value pairs AWP.
  • the following data record is stored on a data memory 3:
  • a filling process is made at the location of Kunststoff Perlach at 16 November 2007, 14.08 clock in a process step.
  • the data validation policy DVP defines the permitted attributes, ie time (Time), location (Location), process step (ProcStep) and comment (Comment). Optionally, also permitted values can be specified.
  • validation rules are given in a Backus-Naur form BNF or an extended Backus-Naur form, as given for example in Internet RFC2234.
  • An example of validation rules VR in Backus-Naur-Form BNF is:
  • TagData Time ';' Loc '; 'ProcStep ['; ' Comment]
  • Time 6DIGIT '-' 4DIGIT
  • Loc ALPHA 0 * 39 (ALPHA / DIGIT)
  • the stored tag data consists of three mandatory elements, ie time (Time), location (Loc) and process step (ProcStep) and optionally a comment (Comment). These are each separated by a semicolon.
  • the time is defined here as six digits, hyphen and four digits (e.g., 071106-1408 for November 6, 2007, 14:08).
  • the place (Loc) consists of a letter and between 0 and 39 following letters or numbers.
  • the process step may take one of the five specified values in the given example.
  • the Comment consists of between 1 and 40 representable characters or characters.
  • the validation rules VR are represented by means of descriptive languages, for example by means of XML (extensible mark-up language).
  • XML extensible mark-up language
  • the DTD is as follows:
  • Another way to represent the validation rules VR is an XML schema.
  • a valid instance of such an XML schema is, for example:
  • FIG. 4 shows an example to illustrate the method and system 1 according to the invention for providing compatible data by a data memory 3.
  • a workpiece 4 undergoes several process steps PS sequentially, wherein in the transition from the one process step PS 1 to the next process step PS 1 + I each have a read and write device 2 is provided.
  • On the workpiece 4 is a data memory 3 in the form of an RFID tag.
  • the two read and write devices 2A, 2B are connected to a common process control server 6.
  • the workpiece 4 is a car seat for a motor vehicle.
  • An RFID tag 3 is attached to the car seat 4, or the RFID tag 3 is integrated into the car seat 4 to be mounted.
  • the workpiece 4 that is a car seat without reference, provided.
  • the car seat is covered with various materials, such as leather or fabric.
  • the related process chair is mounted in the body of a motor vehicle.
  • step PS 1 - I the following data on the data memory 3 or on the RFID tag 3 is stored in the given embodiment:
  • ⁇ xsd: pattern value "build in” /> ⁇ / xsd: restriction> ⁇ / xsd: simpleType> ⁇ / xsd: schema>
  • the data validation rules VR and the data from the RFID tag 3 are read out by the RFID reader 2-H and the read-out data is checked for validity by means of the likewise read validation rules VR.
  • validation rules VR for the next process step PS 1 + I are changed as follows:
  • ⁇ xsd: pattern value "co-driver position" /> ⁇ / xsd: restriction> ⁇ / xsd: simpleType>
  • step PS 1 + I the installation position of the car seat 4 to be installed can be stored on the RFID tag 3.
  • the following data are written for the step PSi + i, which satisfy the DVP or the validation rules VR:
  • the method according to the invention and the system 1 according to the invention allow a flexible adaptation in the case of an extension or modification of a production line comprising several production stages, without the data becoming incompatible with one another.
  • the validation rules VR or the data validation policy DVP can be adapted to the changes made.
  • the necessary data is available on the workpiece 4 itself, which determine what is to be done with the workpiece 4 in the next process step.
  • the state data ZD indicates which process steps PS have already been performed on the workpiece 4. In addition, it is always ensured that makes the state data ZD and the process data PD compatible with the validation rules VR.
  • FIG. 5 shows a block diagram of a possible embodiment of a data memory 3, as can be used in the method according to the invention and the system 1 according to the invention for providing compatible data.
  • the data memory 3, as shown in FIG. 5, is, for example, an RFID tag 3 having a data memory 3A for storing data and a read-only memory
  • the data memory 3 also contains a validation unit 3B for validating the transmitted data by means of the validation rules VR present in the data memory 3A.
  • the data memory 3 also has a wireless interface 3C for transmitting the data to a reading and writing device 2.
  • the data store itself has no validation unit 3B, but the validation is performed by a validation unit within the reader and writer 2.

Abstract

L'invention concerne un système et un procédé pour fournir des données compatibles au moyen d'unités de stockage de données (3) déjà installées sur un objet (4) qui exécute plusieurs étapes de processus (PS). Selon l'invention, un appareil de lecture et d'écriture (2) est utilisé pour différentes étapes de processus (PS) pour transmettre des données par l'intermédiaire d'une interface sans fil, ces données pouvant être validées par des règles de validation (VR) configurables.
PCT/EP2009/052894 2008-04-22 2009-03-12 Procédé et dispositif pour fournir des données compatibles WO2009130086A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008020169 2008-04-22
DE102008020169.3 2008-04-22

Publications (1)

Publication Number Publication Date
WO2009130086A1 true WO2009130086A1 (fr) 2009-10-29

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045324A2 (fr) * 1999-01-29 2000-08-03 Sensormatic Electronics Corporation Gestion de production et d'operations a l'aide d'etiquettes d'identification radiofrequence (rfid) de lecture/ecriture
US20030154355A1 (en) * 2002-01-24 2003-08-14 Xtec, Incorporated Methods and apparatus for providing a memory challenge and response
WO2005101288A2 (fr) * 2004-04-14 2005-10-27 Atmel Germany Gmbh Procede de selection d'un ou plusieurs transpondeurs
US20070095928A1 (en) * 2003-01-15 2007-05-03 Hewlett-Packard Development Company, L.P. Physical items for holding data securely, and methods and apparatus for publishing and reading them

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045324A2 (fr) * 1999-01-29 2000-08-03 Sensormatic Electronics Corporation Gestion de production et d'operations a l'aide d'etiquettes d'identification radiofrequence (rfid) de lecture/ecriture
US20030154355A1 (en) * 2002-01-24 2003-08-14 Xtec, Incorporated Methods and apparatus for providing a memory challenge and response
US20070095928A1 (en) * 2003-01-15 2007-05-03 Hewlett-Packard Development Company, L.P. Physical items for holding data securely, and methods and apparatus for publishing and reading them
WO2005101288A2 (fr) * 2004-04-14 2005-10-27 Atmel Germany Gmbh Procede de selection d'un ou plusieurs transpondeurs

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