WO2001061638A1 - Chip card for detecting measurement data - Google Patents

Chip card for detecting measurement data Download PDF

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Publication number
WO2001061638A1
WO2001061638A1 PCT/DE2001/000489 DE0100489W WO0161638A1 WO 2001061638 A1 WO2001061638 A1 WO 2001061638A1 DE 0100489 W DE0100489 W DE 0100489W WO 0161638 A1 WO0161638 A1 WO 0161638A1
Authority
WO
WIPO (PCT)
Prior art keywords
chip card
sensor
chip
measurement
circuit carrier
Prior art date
Application number
PCT/DE2001/000489
Other languages
German (de)
French (fr)
Inventor
Karl-Heinz König
Jörg Schenk
Carsten Senge
Original Assignee
Orga Kartensysteme Gmbh
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 Orga Kartensysteme Gmbh filed Critical Orga Kartensysteme Gmbh
Priority to AU39166/01A priority Critical patent/AU3916601A/en
Publication of WO2001061638A1 publication Critical patent/WO2001061638A1/en

Links

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
    • G06K19/0716—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 at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
    • G06K19/0718—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 at least one of the integrated circuit chips comprising a sensor or an interface to a sensor the sensor being of the biometric kind, e.g. fingerprint sensors
    • 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
    • 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
    • G06K19/0701—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 at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0702—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 at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery
    • G06K19/0704—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 at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery the battery being rechargeable, e.g. solar batteries
    • 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
    • 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
    • G06K19/07701—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
    • G06K19/07703—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual
    • 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
    • G06K19/07766—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 comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
    • G06K19/07769—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 comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface

Definitions

  • the invention relates to a chip card and a chip card system according to the preamble of the relevant independent claim.
  • Chip cards of the generic type are already in large quantities as bank cards, telephone cards, for. B. used for the operation of mobile phones, access authorization cards, health insurance cards and the like.
  • the card body of such chip cards consists of several laminated plastic films or a card body produced by injection molding and is constructed in accordance with ISO 7810.
  • An essential aspect of the invention is to provide an electronic measurement data memory in the chip card, which stores the measurement data output by a sensor.
  • One or more sensors are preferably integrated into the chip card. Instead of one or more sensors internal to the card, the measurement signals emitted by one or more sensors external to the card, possibly via a suitable interface between the chip card and the sensor on the chip card body, can be transmitted to a chip card according to the invention and stored in its measurement data memory according to the invention.
  • Another important aspect of the invention is to provide the chip card according to the invention with a card-specific analog-digital converter or analog-digital electronics for converting an analog measurement signal emitted by the sensor or measurement sensor into a digital signal or a bit sequence.
  • the digitized measurement signal is preferably processed by a processor provided in the chip card and stored in a data memory assigned to the processor, such as a RAM or an EEPROM.
  • the chip card For autonomous operation of the chip card according to the invention, it is preferably provided with a voltage source provided in the chip card, such as in particular a solar cell and / or a battery or an accumulator, for supplying voltage to the electronic components located therein.
  • a voltage source provided in the chip card, such as in particular a solar cell and / or a battery or an accumulator, for supplying voltage to the electronic components located therein.
  • a contact-based and / or contactless interface to a computer such as, in particular, a PC, for evaluating or further evaluating the sensor or sensors is in or on the chip card according to the invention Measured data output from sensors, arranged.
  • the chip card according to the invention For sequence control of one or more measurements, which are preferably performed automatically by a chip card according to the invention, e.g. B. after confirmation of a push button provided in or on the chip card body or the like. , are executed, the chip card according to the invention is provided with a program memory for storing a corresponding measurement and / or evaluation program, which contains the processor provided in the chip card, which is preferably its own
  • the operating system of the processor and measurement and / or evaluation programs that are executable on the basis of this operating system are preferably stored in a card-internal ROM and / or RAM and / or EEPROM assigned to the processor.
  • digital electronics are preferably integrated in the chip card, which generates a card-specific system clock for the processor or microprocessor of the chip card.
  • Digital electronics are also provided with a device which enables synchronization and / or switching between the card-specific system clock and a card-external system clock, such as that of a card reader or a card-external evaluation unit, for example a PC.
  • a preferred chip card according to the invention has a card body which has its own line system, such as in particular a system of conductor tracks in or on the card body, which electrically connects the individual components to one another and enables rapid data exchange between them. It is also conceivable to implement an optical connection of the individual components instead of a system of conductor tracks, e.g. B. via one or more glass fibers and corresponding transducers, one of which
  • a circuit carrier which is initially separate from the chip card body. Further components required for carrying out the measuring task, which are not specific to the measuring task to be carried out by the circuit carrier in question, are then preferably arranged in or on the chip card body.
  • Such non-specific components can be, for example, a contact and / or contactless interface of the chip card to a card reader, a confirmation device, such as B. a push button to start and / or end one or more measurement programs, an internal voltage source and / or a line system integrated in or on the card body.
  • a chip card body according to the invention and a circuit carrier according to the invention then form a modular system in which a circuit carrier, preferably embedded in the chip card body, determines the functionality of the chip card according to the invention through its specific functionality.
  • chip card body in large series and to determine the functionality of a chip card formed from a chip card body and circuit carrier only by embedding a circuit carrier that fulfills the desired measurement task.
  • the functionality can be flexibly adapted.
  • the chip card body and the circuit carrier can be checked independently of one another for their function, for. B. from different manufacturers, before they are connected to a chip card from chip card body and this intended circuit carrier for the specific task to be performed by the chip card.
  • sensors that are used to record a chemical and / or physical and / or biological variable and / or a biometric feature should in particular be used as sensors inside or outside the card.
  • sensors for moisture measurement, temperature measurement, pressure measurements, measurement of the pH value of a liquid include sensors for moisture measurement, temperature measurement, pressure measurements, measurement of the pH value of a liquid,
  • Such sensors can be, for example act so-called micromechanical and / or microelectronic sensors. It is understood that the invention can also make use of other available sensors which are suitable due to their size.
  • Figure 1 is a schematic representation of a plan view of a chip card according to the invention, which has a chip card body and a chip module provided with a sensor, which is arranged in a cavity of the chip card body.
  • FIG. 2 shows the chip card shown in FIG. 1, partly in cross section along the section line A - A of FIG. 1.
  • the chip card 1 shown in FIGS. 1 and 2 has a chip card body 2 and a chip module 4, a multichip module (MCM), embedded in a cavity 3 of the chip card body 2.
  • the chip card body 2 consists of several laminated plastic films or one through
  • the chip card body 2 is provided with a cavity 5, in which a contact interface 6 of the chip card 1 for communication with a card reader (not shown) is embedded.
  • the interface 6 with contact is preferably the part which carries contact surfaces customary for chip cards in accordance with ISO 7810.
  • the chip card body 2 has a cavity (not shown) for receiving a battery 7, a cavity (not shown) for receiving a light-emitting diode 8, i.e. an LED, a cavity (not shown) for receiving a start button 15 and a cavity 9.
  • a processor 11 i.e. a CPU, a ROM 12, a RAM 13 and an EEPROM 14 integrated, which is embedded in the cavity 9 of the chip card body 2.
  • the components 6, 7, 8, 10 and 15 embedded in the chip card body 2 are preferably modules in the so-called chip-on-flex technology or in whole or in part TAB modules which have a particularly small overall height. These terms are known to the person skilled in the art, so that they need not be explained in more detail here. If the size of the die 10 permits, this can also be accommodated in the cavity 5 together with the interface 6.
  • the chip module or multichip module four has a circuit carrier 17 on which a sensor 18, preferably in the manner of a (thin), possibly plated-through circuit board and provided with conductor tracks on both sides Analog amplifier 19, an analog-digital converter 20, and a clock generating and clock switching device 21 is applied.
  • the clock generation and clock switching device 21 is used to generate an internal system clock and to switch the internal system clock generated by it to an external system clock, which is applied, for example, in the usual manner to a chip card interface by a card reader connected to the chip card via the interface 6 becomes.
  • a solar cell (not shown) and an accumulator (not shown) fed by it can of course also be used for the voltage supply of the components integrated in the chip card body 2 and provided on the circuit carrier 17.
  • a system is made for the electrical connection of the separate components embedded in the card body 2
  • Conductor tracks 22 are provided in the lower part of the chip card 1, which is arranged approximately parallel to the lower cover surface of the chip card 1. For the sake of clarity, only two conductor tracks 23 and 24 of the conductor track system 22 are shown as examples in FIG. 2.
  • the circuit carrier-side part 27 of an interface 25 is arranged on the circuit carrier 17, so that data and / or command communication between the CPU 11 and the analog-digital converter 20 mounted on the circuit carrier 17 and the clock generation and switching device 21 via the card body-side part 26 the interface 25 is possible.
  • the part 26 on the card body side is preferably formed by an appropriately designed conductor track system 22, as shown in FIG. 2.
  • the conductor track system 22 is preferably produced in the manner shown in FIG. 2 in the context of an injection molding process; however, it is also conceivable to form the lower layer of the chip card 1 by means of a laminating film (not shown) which is provided on its upper side with the conductor track system 22 and two is applied to the upper part of the chip card body.
  • the conductor track system 22 can also have a flexible plastic film, for example made of epoxy resin, on which the conductor tracks 23, 24 etc. are applied.
  • Conductor system 22 can, for example, in the manner shown in FIG. 2 via pins 16, the ball grid array technology (cf. in particular the exemplary connection of the connection points of the die 10 to the conductor tracks 23 and 24) or via the chip-and- Wire technology take place (cf. the exemplary connection of the connection points of the sensor 18 with the corresponding contact points of the circuit carrier 17).
  • the circuit carrier 17 equipped with the relevant components (after a separate functional test of both the circuit carrier and the equipped chip card body 2) is introduced into the cavity 3 of the chip card body 2. Then an electrical connection between the two parts 26 and 27 of the
  • Interface 25 for example by means of chip-and-wire technology, and the cavity 3 with a plastic or the like covered or filled, taking care that an opening 31 remains between the top of the chip card 1 and the surface of the sensor 18.
  • the invention is explained in more detail below using the example of a chip card that has a temperature sensor 18.
  • the temperature sensor for example an infrared sensor, periodically measures which temperature is a sensitive delivery, e.g. B. temperature and moisture sensitive raw materials are exposed during transport.
  • a corresponding chip card is enclosed with the delivery of raw materials.
  • the start button 15 is operated manually, the components of the chip card 1 are supplied with voltage from the battery 7, possibly only at predetermined time intervals for a certain time via a standby circuit (not shown), in order to save energy and so on periodic measurements over a long period
  • Allow period When the start button 15 is actuated, the light-emitting diode 8 changes its color, for example from red to green or vice versa, and the clock generating and clock switching device 21 generates an internal system clock. Thereupon, an operating system of the processor 11 stored in the ROM or EEPROM of the processor 11 and a measuring and / or evaluation software come into operation.
  • the sensor 18 emits an analog measurement signal corresponding to the temperature, which is fed to the input of the analog amplifier 19 via one or more lines 28. This amplifies the measurement signal emitted by sensor 18 and, if necessary, optimizes the signal / noise. That from the exit of the
  • Analog amplifier 19 output amplified measurement signal is fed via one or more lines 29 to the analog-to-digital converter 20, which converts the amplified, analog measurement signal into a corresponding digital signal or a bit sequence corresponding to the temperature.
  • the digital measurement signal emitted by the analog-digital converter 20 is queried by the processor 11 via the conductor system 22, the interface 25 and one or more lines 30 and stored in the EEPROM 14 and / or RAM 13, the memory or memories in question then partially as measurement data memory act.
  • This query and storage takes place continuously at periodic, preset time intervals, which can be specified, for example, by the measuring software. At the time of the storage or query, together with the storage of the measurement data, information about the assigned time of the measurement is stored in the measurement data memory.
  • the temperature (and if another suitable sensor is used) the moisture profile over the entire shipping period has been recorded.
  • the measurement data stored in the chip card are read out by a PC via the interface 6. With the available measurement data and the time of their measurement, it can be determined at which point in the mailing chain (manufacturer, warehouse, supplier 1, intermediate store, supplier 2 etc.) inadmissible temperature and / or humidity values have occurred.
  • the measurement data stored in the chip card 1 enclosed with the delivery can be deleted again, if necessary after an authentication check, for example by entering a correct sequence of numbers checked by the processor 11 for correctness.
  • This input can be made, for example, via a PC which has a card reader which is connected to the interface 6 of the chip card 1.
  • the chip card 1 can be put into its original idle state in this way until it is only operated again after the
  • Start button 15 is available for another measurement task.
  • the chip card described above can also be designed as a contactlessly operable chip card, in particular as a so-called smart label with a transponder.
  • the transponder is preferably passive and has a receive / transmit unit.
  • the transponder switching unit is advantageously integrated into the chip. Alternatively, it can also be arranged separately on the card (smart label).
  • the smart label consisting of the transponder and the features essential to the invention can advantageously be designed to be relatively flat and in particular as a self-adhesive label.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

The invention relates to a chip card (1) comprising a chip card body (2) and a non-solid state and/or solid state interface (6) which is provided for a card reader and which is arranged on said chip card body. In order to expand the use of a known chip card for additional fields of application, the chip card body (2) of an inventive chip card is electrically connected to at least one sensor (18) which is located inside and/or outside the card and which is provided for measuring a chemical and/or physical and/or biological quantity and/or a biometric feature. In addition, the chip card (1) is provided with an electronic measurement data memory (13, 14) for storing the measured values detected by the at least one sensor (18).

Description

CHIPKARTE ZUR ERFASSUNG VON MESSDATEN CHIP CARD FOR ACQUISITION OF MEASURED DATA
Die Erfindung betrifft eine Chipkarte sowie ein Chipkartensystem gemäß dem Oberbegriff des betreffenden unabhängigen Patentanspruchs .The invention relates to a chip card and a chip card system according to the preamble of the relevant independent claim.
Chipkarten der gattungsgemäßen Art werden bereits in großen Stückzahlen als Bankkarten, Telefonkarten, z. B. zum Betrieb von Mobiltelefonen, Zugangsberechtigungskarten, Krankenkassenkarten und dergleichen eingesetzt. Der Kartenkörper solcher Chipkarten besteht aus mehreren laminierten Kunststoffolien oder einem im Spritzgußverfahren hergestellten Kartenkörper und ist nach ISO 7810 aufgebaut.Chip cards of the generic type are already in large quantities as bank cards, telephone cards, for. B. used for the operation of mobile phones, access authorization cards, health insurance cards and the like. The card body of such chip cards consists of several laminated plastic films or a card body produced by injection molding and is constructed in accordance with ISO 7810.
Der Erfindung liegt die Aufgabe zugrunde die Chipkarte für weitere Anwendungsfeider nutzbar zu machen sowie einThe invention has for its object to make the chip card usable for further application fields and a
Chipkartensystem für derartige Chipkarten zur Verfügung zu stellen.To provide chip card system for such chip cards.
Die Aufgabe der Erfindung wird durch eine erfindungsgemäße Chipkarte sowie durch ein erfindungsgemäßes Chipkartensystem mit den Merkmalen des betreffenden unabhängigen Patentanspruchs gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.The object of the invention is achieved by a chip card according to the invention and by a chip card system according to the invention with the features of the relevant independent Claim resolved. Advantageous embodiments of the invention are specified in the dependent claims.
Ein wesentlicher Aspekt der Erfindung besteht darin, in der Chipkarte einen elektronischen Meßdatenspeicher vorzusehen, der die von einem Sensor abgegebenen Meßdaten speichert . Bevorzugt werden ein oder mehrere Sensoren in die Chipkarte integriert. Anstelle von einem oder mehreren karteninternen Sensoren können auch die von einem oder mehreren kartenexternen Sensoren abgegebenen Meßsignale, ggf. über eine geeignete Schnittstelle zwischen Chipkarte und Sensor am Chipkartenkorper, an eine erfindungsgemäße Chipkarte übertragen und in ihrem erfindungsgemäßen Meßdatenspeicher gespeichert werden.An essential aspect of the invention is to provide an electronic measurement data memory in the chip card, which stores the measurement data output by a sensor. One or more sensors are preferably integrated into the chip card. Instead of one or more sensors internal to the card, the measurement signals emitted by one or more sensors external to the card, possibly via a suitable interface between the chip card and the sensor on the chip card body, can be transmitted to a chip card according to the invention and stored in its measurement data memory according to the invention.
Ein weiterer wichtiger Aspekt der Erfindung besteht darin, die erfindungsgemäße Chipkarte mit einem karteneigenen Analog- Digitalwandler bzw. einer Analog-Digitalelektronik zur Umwandlung eines vom Sensor bzw. Meßsensor abgegebenen analogen Meßsignals in ein digitales Signal bzw. eine Bitfolge zu versehen. Das digitalisierte Meßsignal wird vorzugsweise von einem in der Chipkarte vorgesehenen Prozessor verarbeitet und in einem dem Prozessor zugeordneten Datenspeicher, wie einem RAM oder einem EEPROM, gespeichert.Another important aspect of the invention is to provide the chip card according to the invention with a card-specific analog-digital converter or analog-digital electronics for converting an analog measurement signal emitted by the sensor or measurement sensor into a digital signal or a bit sequence. The digitized measurement signal is preferably processed by a processor provided in the chip card and stored in a data memory assigned to the processor, such as a RAM or an EEPROM.
Zum autarken Betrieb der erfindungsgemäßen Chipkarte ist diese vorzugsweise mit einer in der Chipkarte vorgesehenen Spannungsquelle, wie insbesondere einer Solarzelle und/oder einer Batterie oder einem Akkumulator, zur Spannungsversorgung der in ihr befindlichen elektronischen Bauelemente versehen. Um die erfaßten und ggf. von dem Prozessor verarbeiteten Meßdaten auslesen zu können, ist in oder auf der erfindungsgemäßen Chipkarte eine kontaktbehaftete und/oder kontaktlose Schnittstelle zu einem Computer, wie insbesondere einem PC, zur Auswertung bzw. zur weiteren Auswertung der vom Sensor oder den Sensoren abgegebenen Meßdaten, angeordnet.For autonomous operation of the chip card according to the invention, it is preferably provided with a voltage source provided in the chip card, such as in particular a solar cell and / or a battery or an accumulator, for supplying voltage to the electronic components located therein. In order to be able to read the measured data that may have been processed by the processor, a contact-based and / or contactless interface to a computer, such as, in particular, a PC, for evaluating or further evaluating the sensor or sensors is in or on the chip card according to the invention Measured data output from sensors, arranged.
Zur Ablaufsteuerung von einer oder mehreren Messungen, die von einer erfindungsgemäßen Chipkarte vorzugsweise selbsttätig, z. B. nach Bestätigung eines im oder auf dem Chipkartenkorper vorgesehenen Drucktasters oder dgl . , ausgeführt werden, ist die erfindungsgemäße Chipkarte mit einem Programmspeicher zur Speicherung eines entsprechenden Meß- und/oder Auswertungsprogramms versehen, das den in der Chipkarte vorgesehenen Prozessor, der vorzugsweise ein eigenesFor sequence control of one or more measurements, which are preferably performed automatically by a chip card according to the invention, e.g. B. after confirmation of a push button provided in or on the chip card body or the like. , are executed, the chip card according to the invention is provided with a program memory for storing a corresponding measurement and / or evaluation program, which contains the processor provided in the chip card, which is preferably its own
Betriebssystem hat, steuert. Dieser veranlaßt dann seinerseits die Ausführung der Messung durch den oder die Sensoren und die Speicherung und/oder eine primäre Auswertung der erfaßten Meßdaten.Operating system controls. This then in turn causes the measurement to be carried out by the sensor or sensors and the storage and / or primary evaluation of the recorded measurement data.
Das Betriebssystem des Prozessors sowie auf der Basis dieses Betriebssystems lauffähige Meß- und/oder Auswertungsprogramme werden bevorzugt in einem dem Prozessor zugeordneten karteninternen ROM und/oder RAM und/oder EEPROM abgelegt .The operating system of the processor and measurement and / or evaluation programs that are executable on the basis of this operating system are preferably stored in a card-internal ROM and / or RAM and / or EEPROM assigned to the processor.
Weiterhin ist bevorzugt in der Chipkarte eine Digitalelektronik integriert, die einen karteneigenen Systemtakt für den Prozessor bzw. Mikroprozessor der Chipkarte erzeugt .Furthermore, digital electronics are preferably integrated in the chip card, which generates a card-specific system clock for the processor or microprocessor of the chip card.
Bei einer bevorzugten Ausführungsform der Erfindung ist die den karteneigenen Systemtakt bzw. ein Clock-Signal erzeugende Digitalelektronik ferner mit einer Einrichtung versehen, die eine Synchronisierung und/oder Umschaltung zwischen dem karteneigenen Systemtakt und einem kartenexternen Systemtakt, wie dem eines Kartenlesers oder einer kartenexternen Auswertungseinheit, beispielsweise einem PC, ermöglicht.In a preferred embodiment of the invention, that which generates the card's own system clock or a clock signal Digital electronics are also provided with a device which enables synchronization and / or switching between the card-specific system clock and a card-external system clock, such as that of a card reader or a card-external evaluation unit, for example a PC.
Eine bevorzugte erfindungsgemäße Chipkarte weist einen Kartenkörper auf, der ein eigenes Leitungssystem, wie insbesondere ein System aus Leiterbahnen im oder auf dem Kartenkörper besitzt, das die Einzelkomponenten elektrisch untereinander verbindet und einen schnellen Datenaustausch zwischen ihnen ermöglicht. Ebenso ist es denkbar, anstelle eines Systems aus Leiterbahnen eine optische Verbindung der Einzelkomponenten zu realisieren, z. B. über eine oder mehrere Glasfasern und entsprechende Wandler, die ein von der einenA preferred chip card according to the invention has a card body which has its own line system, such as in particular a system of conductor tracks in or on the card body, which electrically connects the individual components to one another and enables rapid data exchange between them. It is also conceivable to implement an optical connection of the individual components instead of a system of conductor tracks, e.g. B. via one or more glass fibers and corresponding transducers, one of which
Komponente zu einer anderen in der erfindungsgemäßen Chipkarte vorgesehenen Komponente zu übertragendes Digitalsignal in ein entsprechendes optisches Signal umwandeln, dieses über die Glasfaser bzw. Glasfasern oder dgl . übertragen und bei der anderen Komponente umgekehrt in ein Digitalsignal umwandeln.Convert component to another digital signal to be transmitted in the chip card according to the invention into a corresponding optical signal, this via the glass fiber or glass fibers or the like. transmitted and conversely convert the other component into a digital signal.
Bei einer besonders bevorzugten Ausführungsform der Erfindung ist vorgesehen, den oder die Sensoren und die für die konkrete Meßaufgabe spezifischen Bauelemente auf einem vom Chipkartenkorper zunächst separaten Schaltungsträger anzuordnen. Vorzugsweise werden dann weitere zur Durchführung der Meßaufgabe benötigte Bauelemente, die nicht spezifisch für die durch den betreffenden Schaltungsträger durchzuführende Meßaufgabe sind, im oder auf dem Chipkartenkorper angeordnet. Solche nicht spezifischen Bauelemente können etwa eine kontaktbehaftete und/oder kontaktlose Schnittstelle der Chipkarte zu einem Kartenleser, eine Bestätigungseinrichtung, wie z. B. ein Drucktaster, um ein oder mehrere Meßprogramme zu starten und/oder zu beenden, eine karteninterne Spannungsquelle und/oder ein im oder auf dem Kartenkörper integriertes Leitungssystem. Hierbei bilden dann ein erfindungsgemäßer Chipkartenkorper und ein erfindungsgemäßer Schaltungsträger ein modulares System, bei dem ein im Chipkartenkorper, vorzugsweise eingebetteter Schaltungsträger durch seine konkrete Funktionalität die Funktionalität der erfindungsgemäßen Chipkarte bestimmt.In a particularly preferred embodiment of the invention, it is provided to arrange the sensor or sensors and the components specific to the specific measurement task on a circuit carrier which is initially separate from the chip card body. Further components required for carrying out the measuring task, which are not specific to the measuring task to be carried out by the circuit carrier in question, are then preferably arranged in or on the chip card body. Such non-specific components can be, for example, a contact and / or contactless interface of the chip card to a card reader, a confirmation device, such as B. a push button to start and / or end one or more measurement programs, an internal voltage source and / or a line system integrated in or on the card body. In this case, a chip card body according to the invention and a circuit carrier according to the invention then form a modular system in which a circuit carrier, preferably embedded in the chip card body, determines the functionality of the chip card according to the invention through its specific functionality.
Hierdurch ist es möglich gleiche Chipkartenkorper in großer Serie herzustellen und erst durch die Einbettung eines die gewünschte Meßaufgabe erfüllenden Schaltungsträgers die Funktionalität einer aus Chipkartenkorper und Schaltungsträger gebildeten Chipkarte festzulegen. Damit ist also eine flexible Anpassung der Funktionalität gegeben. Zudem können die Chipkartenkorper und die Schaltungsträger unabhängig voneinander auf ihre Funktion hin überprüft werden, z. B. bei verschiedenen Herstellern, bevor diese zu einer Chipkarte aus Chipkartenkorper und diesem zugedachten Schaltungsträger für die konkret von der Chipkarte zu erfüllende Meßaufgabe, verbunden werden.This makes it possible to produce the same chip card body in large series and to determine the functionality of a chip card formed from a chip card body and circuit carrier only by embedding a circuit carrier that fulfills the desired measurement task. This means that the functionality can be flexibly adapted. In addition, the chip card body and the circuit carrier can be checked independently of one another for their function, for. B. from different manufacturers, before they are connected to a chip card from chip card body and this intended circuit carrier for the specific task to be performed by the chip card.
Als karteninterne bzw. kartenexterne Sensoren sollen erfindungsgemäß insbesondere solche Sensoren zum Einsatz kommen, die der Erfassung einer chemischen und/oder physikalischen und/oder biologischen Größe und/oder eines biometrischen Merkmals dienen. Beispielhaft seien hier Sensoren zur Feuchtigkeitsmessung, Temperaturmessung, Druckmessungen, Messung des pH-Werts einer Flüssigkeit,According to the invention, sensors that are used to record a chemical and / or physical and / or biological variable and / or a biometric feature should in particular be used as sensors inside or outside the card. Examples include sensors for moisture measurement, temperature measurement, pressure measurements, measurement of the pH value of a liquid,
Messung des Redoxpotentials oder die Messung von Blutwerten genannt. Bei solchen Sensoren kann es sich beispielsweise um sogenannte mikromechanische und/oder mikroelektronische Sensoren handeln. Es versteht sich, daß die Erfindung auch von anderen verfügbaren und aufgrund ihrer Größe geeigneten Sensoren Gebrauch machen kann.Measurement of the redox potential or the measurement of blood values called. Such sensors can be, for example act so-called micromechanical and / or microelectronic sensors. It is understood that the invention can also make use of other available sensors which are suitable due to their size.
Die Erfindung wird nachfolgend anhand von nicht notwendigerweise vollständig maßstäblichen Zeichnungen näher erläutert, wobei gleiche oder gleichwirkende Teile mit denselben Bezugszeichen versehen sind. Es zeigen:The invention is explained in more detail below with reference to drawings which are not necessarily to scale, the same or equivalent parts being provided with the same reference numerals. Show it:
Fig. 1 eine schematische Darstellung einer Draufsicht auf eine erfindungsgemäße Chipkarte, die einen Chipkartenkorper und ein mit einem Sensor versehenes Chipmodul aufweist, das in einer Kavität des Chipkartenkörpers angeordnet ist; undFigure 1 is a schematic representation of a plan view of a chip card according to the invention, which has a chip card body and a chip module provided with a sensor, which is arranged in a cavity of the chip card body. and
Fig. 2 die in Fig. 1 dargestellte Chipkarte teilweise im Querschnitt entlang der Schnittlinie A - A der Fig. 1.FIG. 2 shows the chip card shown in FIG. 1, partly in cross section along the section line A - A of FIG. 1.
Die in den Figuren 1 und 2 dargestellte Chipkarte 1 weist einen Chipkartenkorper 2 sowie ein in einer Kavität 3 des Chipkartenkörpers 2 eingebettetes Chipmodul 4, ein Multichipmodul (MCM), auf. Der Chipkartenkorper 2 besteht aus mehreren laminierten Kunststoffolien oder einem durchThe chip card 1 shown in FIGS. 1 and 2 has a chip card body 2 and a chip module 4, a multichip module (MCM), embedded in a cavity 3 of the chip card body 2. The chip card body 2 consists of several laminated plastic films or one through
(Kunststoff-) Spritzguß hergestellten Kartenkörper, der im übrigen vorzugsweise nach ISO 7810 aufgebaut ist. Ferner ist der Chipkartenkorper 2 mit einer Kavität 5 versehen, in der eine kontaktbehaftete Schnittstelle 6 der Chipkarte 1 zur Kommunikation mit einem Kartenleser (nicht dargestellt) eingebettet ist . Bei der kontaktbehafteten Schnittstelle 6 handelt es sich bevorzugt um das für Chipkarten übliche Kontaktflächen tragende Teil entsprechend der ISO 7810.(Plastic) injection molded card body, which is otherwise preferably constructed according to ISO 7810. Furthermore, the chip card body 2 is provided with a cavity 5, in which a contact interface 6 of the chip card 1 for communication with a card reader (not shown) is embedded. The interface 6 with contact is preferably the part which carries contact surfaces customary for chip cards in accordance with ISO 7810.
Weiterhin ist der Chipkartenkorper 2 mit einer Kavität (nicht dargestellt) zur Aufnahme einer Batterie 7, einer Kavität (nicht dargestellt) zur Aufnahme einer Leuchtdiode 8, d.h. einer LED, einer Kavität (nicht dargestellt) zur Aufnahme eines Starttasters 15 sowie einer Kavität 9 versehen.Furthermore, the chip card body 2 has a cavity (not shown) for receiving a battery 7, a cavity (not shown) for receiving a light-emitting diode 8, i.e. an LED, a cavity (not shown) for receiving a start button 15 and a cavity 9.
Auf einem sogenannten Die 10, d.h. einem Teil eines Halbleiterwafers, sind ein Prozessor 11, d.h. eine CPU, ein ROM 12, ein RAM 13 und ein EEPROM 14 integriert, der in der Kavität 9 des Chipkartenkörpers 2 eingebettet ist. Bei den im Chipkartenkorper 2 eingebetteten Bauelementen 6, 7, 8, 10 und 15 handelt es sich bevorzugt um Module in der sogenannten Chip-on-Flex-Technik oder ganz oder teilweise um TAB-Module, die eine besonders geringe Bauhδhe aufweisen. Dem Fachmann sind diese Begriffe bekannt, so daß sie hier nicht näher erläutert werden müssen. Sofern es die Größe des Die 10 gestattet, kann dieser auch zusammen mit der Schnittstelle 6 in der Kavität 5 untergebracht sein.On a so-called Die 10, i.e. part of a semiconductor wafer are a processor 11, i.e. a CPU, a ROM 12, a RAM 13 and an EEPROM 14 integrated, which is embedded in the cavity 9 of the chip card body 2. The components 6, 7, 8, 10 and 15 embedded in the chip card body 2 are preferably modules in the so-called chip-on-flex technology or in whole or in part TAB modules which have a particularly small overall height. These terms are known to the person skilled in the art, so that they need not be explained in more detail here. If the size of the die 10 permits, this can also be accommodated in the cavity 5 together with the interface 6.
Ferner kann es zweckmäßig sein, den Die 10 oder einen Teil der auf ihm integrierten Bauelemente nicht in der Kavität 9 des Chipkartenkδrpers 2 anzuordnen, sondern diesen auf einem Schaltungsträger 17 vorzusehen.Furthermore, it may be expedient not to arrange the die 10 or a part of the components integrated on it in the cavity 9 of the chip card body 2, but rather to provide this on a circuit carrier 17.
Das Chipmodul bzw. Multichipmodul vier weist einen Schaltungsträger 17 auf, auf dem, bevorzugt nach Art einer (dünnen), ggf. durchkontaktierten und beidseitig mit Leiterbahnen versehenen Platine, ein Sensor 18, ein Analogverstärker 19, ein Analog-Digitalwandler 20, und eine Takterzeugungs- und Taktumschalteinrichtung 21 aufgebracht ist. Die Takterzeugungs- und Taktumschalteinrichtung 21 dient der Erzeugung eines karteninternen Systemtakts und der Umschaltung des von ihr erzeugten karteninternen Systemtakts auf einen kartenexternen Systemtakt, der beispielsweise von einem mit der Chipkarte über die Schnittstelle 6 in Verbindung stehenden Kartenleser in üblicher Weise an die Schnittstelle einer Chipkarte angelegt wird.The chip module or multichip module four has a circuit carrier 17 on which a sensor 18, preferably in the manner of a (thin), possibly plated-through circuit board and provided with conductor tracks on both sides Analog amplifier 19, an analog-digital converter 20, and a clock generating and clock switching device 21 is applied. The clock generation and clock switching device 21 is used to generate an internal system clock and to switch the internal system clock generated by it to an external system clock, which is applied, for example, in the usual manner to a chip card interface by a card reader connected to the chip card via the interface 6 becomes.
Anstelle einer Batterie kann selbstverständlich auch eine Solarzelle (nicht dargestellt) und ein von ihr gespeister Akkumulator (nicht dargestellt) zur Spannungsversorgung der im Chipkartenkorper 2 integrierten und auf dem Schaltungsträger 17 vorgesehenen Bauelemente Verwendung finden. DerInstead of a battery, a solar cell (not shown) and an accumulator (not shown) fed by it can of course also be used for the voltage supply of the components integrated in the chip card body 2 and provided on the circuit carrier 17. The
Übersichtlichkeit halber ist die Spannungsversorgung der Bauelemente lediglich angedeutet.For the sake of clarity, the voltage supply to the components is only indicated.
Zur elektrischen Verbindung der im Kartenkörper 2 eingebetteten, separaten Bauelemente ist ein System ausA system is made for the electrical connection of the separate components embedded in the card body 2
Leiterbahnen 22 im unteren Teil der Chipkarte 1 vorgesehen, das etwa parallel zur unteren Deckfläche der Chipkarte 1 angeordnet ist. Der Übersichtlichkeit halber sind in Fig. 2 lediglich zwei Leiterbahnen 23 und 24 des Leiterbahnsystems 22 exemplarisch dargestellt.Conductor tracks 22 are provided in the lower part of the chip card 1, which is arranged approximately parallel to the lower cover surface of the chip card 1. For the sake of clarity, only two conductor tracks 23 and 24 of the conductor track system 22 are shown as examples in FIG. 2.
Auf dem Schaltungsträger 17 ist der schaltungsträgerseitige Teil 27 einer Schnittstelle 25 angeordnet, so daß eine Daten- und/oder Befehlskommunikation zwischen der CPU 11 und dem auf dem Schaltungsträger 17 aufgebrachten Analog-Digitalwandler 20 sowie der Takterzeugungs- und Taktumschalteinrichtung 21 über den kartenkörperseitigen Teil 26 der Schnittstelle 25 ermöglicht ist. Der kartenkorperseitige Teil 26 wird bevorzugt durch ein entsprechend gestaltetes Leiterbahnsystem 22 gebildet, wie in Fig. 2 dargestellt.The circuit carrier-side part 27 of an interface 25 is arranged on the circuit carrier 17, so that data and / or command communication between the CPU 11 and the analog-digital converter 20 mounted on the circuit carrier 17 and the clock generation and switching device 21 via the card body-side part 26 the interface 25 is possible. The part 26 on the card body side is preferably formed by an appropriately designed conductor track system 22, as shown in FIG. 2.
Das Leiterbahnsystem 22 wird vorzugsweise in der in Fig. 2 dargestellten Weise im Rahmen eines Spritzgußverfahrens erzeugt; ebenso ist es jedoch denkbar die untere Schicht der Chipkarte 1 durch eine Laminierfolie (nicht dargestellt) zu bilden, die auf ihrer Oberseite mit dem Leiterbahnsystem 22 versehen ist und auf dem oberen Teil des Chipkartenkörpers zwei aufgebracht wird. Alternativ kann das Leiterbahnsystem 22 auch eine flexible Kunststofffolie, beispielsweise aus Epoxydharz, aufweisen, auf der die Leiterbahnen 23, 24 etc. aufgebracht sind. Der elektrische Kontakt der in dem Chipkartenkorper 2 eingebetteten Bauelemente mit demThe conductor track system 22 is preferably produced in the manner shown in FIG. 2 in the context of an injection molding process; however, it is also conceivable to form the lower layer of the chip card 1 by means of a laminating film (not shown) which is provided on its upper side with the conductor track system 22 and two is applied to the upper part of the chip card body. Alternatively, the conductor track system 22 can also have a flexible plastic film, for example made of epoxy resin, on which the conductor tracks 23, 24 etc. are applied. The electrical contact of the components embedded in the chip card body 2 with the
Leiterbahnsystem 22 kann beispielsweise in der in Fig. 2 dargestellten Weise über Stifte 16, die Ball-Grid-Array- Technologie (vgl . insbesondere die beispielhafte Verbindung der Anschlußstellen des Die 10 mit den Leiterbahnen 23 und 24) oder über die Chip-and-Wire-Technik erfolgen (vgl. die beispielhafte Verbindung der Anschlußstellen des Sensors 18 mit den entsprechenden Kontaktstellen des Schaltungsträgers 17) .Conductor system 22 can, for example, in the manner shown in FIG. 2 via pins 16, the ball grid array technology (cf. in particular the exemplary connection of the connection points of the die 10 to the conductor tracks 23 and 24) or via the chip-and- Wire technology take place (cf. the exemplary connection of the connection points of the sensor 18 with the corresponding contact points of the circuit carrier 17).
Wie in Fig. 2 dargestellt, wird der mit den betreffenden Bauelementen bestückte Schaltungsträger 17 (nach einem separaten Funktionstest sowohl des Schaltungsträgers als auch des bestückten Chipkartenkörpers 2) in die Kavität 3 des Chipkartenkörpers 2 eingebracht. Dann wird eine elektrische Verbindung zwischen den beiden Teilen 26 und 27 derAs shown in FIG. 2, the circuit carrier 17 equipped with the relevant components (after a separate functional test of both the circuit carrier and the equipped chip card body 2) is introduced into the cavity 3 of the chip card body 2. Then an electrical connection between the two parts 26 and 27 of the
Schnittstelle 25, beispielsweise mittels der Chip-and-Wire- Technik, hergestellt und die Kavität 3 mit einem Kunststoff oder dgl . abgedeckt oder ausgefüllt, wobei dafür Sorge getragen wird, daß eine Öffnung 31 zwischen der Oberseite der Chipkarte 1 und der Oberfläche des Sensors 18 verbleibt.Interface 25, for example by means of chip-and-wire technology, and the cavity 3 with a plastic or the like covered or filled, taking care that an opening 31 remains between the top of the chip card 1 and the surface of the sensor 18.
Die Erfindung wird nachfolgend am Beispiel einer Chipkarte, die einen Temperatursensor 18 aufweist, näher erläutert. Der Temperatursensor 18, beispielsweise ein Infrarotsensor, mißt periodisch, welcher Temperatur eine sensible Lieferung, z. B. temperatur- und feuchtigkeitsempfindliche Rohstoffe, während des Transports ausgesetzt sind. Hierzu wird eine entsprechende Chipkarte der Rohstofflieferung beigepackt.The invention is explained in more detail below using the example of a chip card that has a temperature sensor 18. The temperature sensor 18, for example an infrared sensor, periodically measures which temperature is a sensitive delivery, e.g. B. temperature and moisture sensitive raw materials are exposed during transport. For this purpose, a corresponding chip card is enclosed with the delivery of raw materials.
Es versteht sich, daß dies lediglich ein einfaches Ausführungsbeispiel ist; insbesondere kann auch von einem oder mehreren der eingangs genannten Sensoren sowie weiterer Sensoren, soweit verfügbar, Gebrauch gemacht werden. Insbesondere ist es im vorgenannten Anwendungsfall zweckmäßig ein Chipmodul zu verwenden, daß neben dem Temperatursensor einen Feuchtigkeitssensor aufweist. Die von beiden Sensoren oder auch mehreren Sensoren abgegebenen Meßsignale würden dann vorzugsweise zeitmultiplex, d.h. periodisch nacheinander, erfaßt und nach ihrer Umwandlung in digitale Daten in einem Datenspeicher der Chipkarte gespeichert.It is understood that this is only a simple embodiment; in particular, use can also be made of one or more of the sensors mentioned at the outset and further sensors, if available. In particular, in the aforementioned application it is expedient to use a chip module that has a moisture sensor in addition to the temperature sensor. The measurement signals emitted by both sensors or a plurality of sensors would then preferably be time-division multiplexed, i.e. periodically in succession, recorded and after their conversion into digital data stored in a data memory of the chip card.
Zum gewünschten Zeitpunkt wird der Starttaster 15 manuell betätigt, die Bauelemente der Chipkarte 1 werden mit Spannung aus der Batterie 7 versorgt, ggf. lediglich in vorbestimmten Zeitintervallen für eine gewisse Zeit über eine Standby- Schaltung (nicht dargestellt) , um Energie einzusparen und um so periodisch durchgeführte Messungen über einen langenAt the desired time, the start button 15 is operated manually, the components of the chip card 1 are supplied with voltage from the battery 7, possibly only at predetermined time intervals for a certain time via a standby circuit (not shown), in order to save energy and so on periodic measurements over a long period
Zeitraum zu ermöglichen. Mit der Betätigung des Starttasters 15 wechselt die Leuchtdiode 8 ihre Farbe, beispielsweise von rot nach grün oder umgekehrt, und die Takterzeugungs- und Taktumschalteinrichtung 21 erzeugt einen karteninternen Systemtakt. Daraufhin tritt ein im ROM bzw. EEPROM des Prozessors 11 gespeichertes Betriebssystem des Prozessors 11 sowie eine Meß- und/oder Auswertungssoftware in Funktion. Der Sensor 18 gibt ein der Temperatur entsprechendes analoges Meßsignal ab, das dem Eingang des Analogverstärkers 19 über ein oder mehrere Leitungen 28 zugeführt wird. Dieser verstärkt das vom Sensor 18 abgegebene Meßsignal und nimmt ggf. eine Signal -/Rauschoptimierung vor. Das vom Ausgang desAllow period. When the start button 15 is actuated, the light-emitting diode 8 changes its color, for example from red to green or vice versa, and the clock generating and clock switching device 21 generates an internal system clock. Thereupon, an operating system of the processor 11 stored in the ROM or EEPROM of the processor 11 and a measuring and / or evaluation software come into operation. The sensor 18 emits an analog measurement signal corresponding to the temperature, which is fed to the input of the analog amplifier 19 via one or more lines 28. This amplifies the measurement signal emitted by sensor 18 and, if necessary, optimizes the signal / noise. That from the exit of the
Analogverstärkers 19 abgegebene verstärkte Meßsignal wird über ein oder mehrere Leitungen 29 dem Analog-Digitalwandler 20 zugeführt, der das verstärkte, analoge Meßsignal in ein entsprechendes Digitalsignal bzw. eine der Temperatur entsprechende Bitfolge umwandelt. Das vom Analog- Digitalwandler 20 abgegebene digitale Meßsignal wird von dem Prozessor 11 über das Leiterbahnsystem 22, die Schnittstelle 25 und ein oder mehrere Leitungen 30 abgefragt und im EEPROM 14 und/oder RAM 13 gespeichert, wobei der oder die betreffenden Speicher dann teilweise als Meßdatenspeicher fungieren. Diese Abfrage und Speicherung erfolgt kontinuierlich in periodischen, voreingestellten Zeitintervallen, die beispielsweise durch die Meßsoftware vorgegeben sein kann. Zum Zeitpunkt der Speicherung bzw. Abfrage wird zusammen mit der Speicherung der Meßdaten eine Information über den zugeordneten Zeitpunkt der Messung im Meßdatenspeicher abgelegt.Analog amplifier 19 output amplified measurement signal is fed via one or more lines 29 to the analog-to-digital converter 20, which converts the amplified, analog measurement signal into a corresponding digital signal or a bit sequence corresponding to the temperature. The digital measurement signal emitted by the analog-digital converter 20 is queried by the processor 11 via the conductor system 22, the interface 25 and one or more lines 30 and stored in the EEPROM 14 and / or RAM 13, the memory or memories in question then partially as measurement data memory act. This query and storage takes place continuously at periodic, preset time intervals, which can be specified, for example, by the measuring software. At the time of the storage or query, together with the storage of the measurement data, information about the assigned time of the measurement is stored in the measurement data memory.
Nach der Durchführung der vorgesehenen Meßaufgabe ist der Temperatur- (und bei Verwendung eines weiteren geeigneten Sensors) auch der Feuchtigkeitsverlauf über den gesamten Versandzeitraum aufgezeichnet worden. Insbesondere im Falle eines Transportschadens werden die in der Chipkarte gespeicherten Meßdaten von einem PC über die Schnittstelle 6 ausgelesen. Mit den zur Verfügung stehenden Meßdaten und dem Zeitpunkt ihrer Messung kann festgestellt werden, an welcher Stelle der Versandkette (Hersteller, Lager, Lieferant 1, Zwischenlager, Lieferant 2 usw.) unzulässige Temperatur- und/oder Feuchtigkeitswerte aufgetreten sind.After the intended measurement task has been carried out, the temperature (and if another suitable sensor is used) the moisture profile over the entire shipping period has been recorded. Especially in the case a transport damage, the measurement data stored in the chip card are read out by a PC via the interface 6. With the available measurement data and the time of their measurement, it can be determined at which point in the mailing chain (manufacturer, warehouse, supplier 1, intermediate store, supplier 2 etc.) inadmissible temperature and / or humidity values have occurred.
Anhand der Meßdaten können Reklamationen einfach begründet werden; eine aufwendige Fehlersuche entfällt. Ebenso kann vorgesehen sein, daß die in der der Lieferung beigepackten Chipkarte 1 gespeicherten Meßdaten, ggf. nach einer Authentisierungsprüfung, beispielsweise über die Eingabe einer korrekten und von dem Prozessor 11 auf ihre Richtigkeit hin überprüften Zahlenfolge, wieder gelöscht werden können. Diese Eingabe kann beispielsweise über einen PC erfolgen, der einen Kartenleser aufweist, der mit mit der Schnittstelle 6 der Chipkarte 1 in Verbindung steht . Ebenso kann die Chipkarte 1 auf diese Weise in ihren ursprünglichen Ruhezustand versetzt werden, bis sie erst nach einer erneuten Betätigung desComplaints can be justified based on the measurement data; there is no need for time-consuming troubleshooting. It can also be provided that the measurement data stored in the chip card 1 enclosed with the delivery can be deleted again, if necessary after an authentication check, for example by entering a correct sequence of numbers checked by the processor 11 for correctness. This input can be made, for example, via a PC which has a card reader which is connected to the interface 6 of the chip card 1. Likewise, the chip card 1 can be put into its original idle state in this way until it is only operated again after the
Starttasters 15 für eine weitere Meßaufgabe zur Verfügung steht .Start button 15 is available for another measurement task.
Alternativ kann die oben beschriebene Chipkarte auch als eine kontaktlos betreibbare Chipkarte, insbesondere als sogenanntes Smart Label mit einem Transponder, ausgebildet sein. Der Transponder ist vorzugsweise passiv ausgebildet und weist eine Empfangs-/Sendeeinheit auf. Vorteilhaft ist die Transponder- Schalteinheit in den Chip integriert. Alternativ kann er auch gesondert auf der Karte (Smart Label) angeordnet sein. Vorteilhaft kann das Smart Label bestehend aus dem Transponder und den erfindungswesentlichen Merkmalen relativ flach und insbesondere als selbstklebendes Etikett ausgebildet sein. Alternatively, the chip card described above can also be designed as a contactlessly operable chip card, in particular as a so-called smart label with a transponder. The transponder is preferably passive and has a receive / transmit unit. The transponder switching unit is advantageously integrated into the chip. Alternatively, it can also be arranged separately on the card (smart label). The smart label consisting of the transponder and the features essential to the invention can advantageously be designed to be relatively flat and in particular as a self-adhesive label.
Bezugszeichenliste :Reference symbol list:
Chipkarte Chipkartenkorper Kavität Chipmodul Kavität Schnittstelle Batterie Leuchtdiode Kavität 0 Die 1 Prozessor 2 ROM 3 RAM 4 EEPROM 5 Starttaster 7 Schaltungsträger 8 Sensor 9 Verstärker 0 Analog-Digitalwandler 1 Takterzeugungs- und Taktumschalteinrichtung 2 Leiterbahnsystem 3 Leiterbahn 4 Leiterbahn 5 Schnittstelle 6 kartenseitiges Teil der Schnittstelle 25 7 schaltungsträgerseitiges Teil der Schnittstelle 25 8 Leitungen 9 Leitungen 0 Leitungen 1 Öffnung Chip card chip card body cavity chip module cavity interface battery LED cavity 0 Die 1 processor 2 ROM 3 RAM 4 EEPROM 5 start button 7 circuit carrier 8 sensor 9 amplifier 0 analogue-digital converter 1 clock generation and clock switching device 2 interconnect system 3 interconnect 4 interconnect 5 interface 6 card-side part of the interface 25 7 part of the interface 25 on the circuit board side 8 lines 9 lines 0 lines 1 opening

Claims

Chipkarte zur Erfassung von Meßdaten sowie ein Chipkartensystem mit einer solchen ChipkartePatentansprüche Chip card for the acquisition of measurement data and a chip card system with such a chip card
1. Chipkarte (1) mit einem Chipkartenkorper (2) und einer auf diesem angeordneten kontaktbehafteten und/oder kontaktlosen Schnittstelle (6) für einen Kartenleser,1. chip card (1) with a chip card body (2) and a contact and / or contactless interface (6) arranged thereon for a card reader,
dadurch gekennzeichnet,characterized,
- daß der Chipkartenkorper (2) mit mindestens einem karteninternen und/oder kartenexternen Sensor (18) zur Messung einer chemischen und/oder physikalischen und/oder biologischen Größe und/oder eines biometrischen Merkmals in einer elektrischen Verbindung (25) steht, und- That the chip card body (2) with at least one card-internal and / or card-external sensor (18) for measuring a chemical and / or physical and / or biological size and / or a biometric feature in an electrical connection (25), and
- daß die Chipkarte (1) einen elektronischen- That the chip card (1) an electronic
Meßdatenspeicher (13, 14) zur Speicherung der von dem mindestens einen Sensor (18) ermittelten Meßwerte aufweist. Measurement data memory (13, 14) for storing the measured values determined by the at least one sensor (18).
2. Chipkarte nach Anspruch 1, dadurch gekennzeichnet, daß der Chipkartenkorper (2) mit einer Spannungsquelle (7) zur Spannungsversorgung des Sensors (18) und/oder des elektronischen Meßdatenspeichers (13, 14) versehen ist.2. Chip card according to claim 1, characterized in that the chip card body (2) is provided with a voltage source (7) for supplying voltage to the sensor (18) and / or the electronic measurement data memory (13, 14).
3. Chipkarte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Sensor (18) und/oder der elektronische Meßdatenspeicher (13, 14) auf einem Schaltungsträger (17) angeordnet ist, der vorzugsweise räumlich von der Schnittstelle (6) getrennt im oder auf dem Chipkartenkorper (2) angeordnet ist.3. Chip card according to claim 1 or 2, characterized in that the sensor (18) and / or the electronic measurement data memory (13, 14) is arranged on a circuit carrier (17), which is preferably spatially separated from the interface (6) in or is arranged on the chip card body (2).
4. Chipkarte nach Anspruch 3, dadurch gekennzeichnet, daß der Schaltungsträger (17) einen Analog-Digitalwandler (20) zur Umwandlung eines analogen Meßsignals des Sensors (18) in eine Bitfolge aufweist.4. Chip card according to claim 3, characterized in that the circuit carrier (17) has an analog-digital converter (20) for converting an analog measurement signal from the sensor (18) into a bit sequence.
5. Chipkarte nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Schaltungsträger (17) und/oder der Chipkartenkorper (2) mindestens einen Programmspeicher5. Chip card according to claim 3 or 4, characterized in that the circuit carrier (17) and / or the chip card body (2) at least one program memory
(12, 13, 14) zur Speicherung mindestens eines Programms zur Ablaufsteuerung eines im Chipkartenkorper (2) und/oder im Schaltungsträger (17) angeordneten Prozessors (11) aufweist.(12, 13, 14) for storing at least one program for sequence control of a processor (11) arranged in the chip card body (2) and / or in the circuit carrier (17).
6. Chipkarte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß im Chipkartenkorper (2) und/oder im Schaltungsträger (17) eine Takteinrichtung (21) zur Erzeugung eines karteninternen Systemtakts für getaktet betriebene karteninterne Schaltungen, wie insbesondere für den Prozessor (11), den Programmspeicher (12, 13, 14), den Meßdatenspeicher (13, 14) und den Analog- Digitalwandler (20) .6. Chip card according to one of claims 1 to 5, characterized in that in the chip card body (2) and / or in the circuit carrier (17) a clock device (21) for generating an internal system clock for clocked operated internal card circuits, such as in particular for the processor ( 11), the program memory (12, 13, 14), the measurement data memory (13, 14) and the analog-digital converter (20).
7. Chipkarte nach Anspruch 6, dadurch gekennzeichnet, daß im Chipkartenkorper (2) und/oder im Schaltungsträger (17) eine Systemtakt -Umschalteinrichtung (21) vorgesehen ist, die die getaktet betriebenen karteninternen Schaltungen anstelle des karteninternen Systemtakts mit einem kartenexternen Systemtakt beaufschlagt, wie dem eines Kartenlesers mit dem die Chipkarte (1) über die7. Chip card according to claim 6, characterized in that a system clock switching device (21) is provided in the chip card body (2) and / or in the circuit carrier (17), which acts on the clocked card-internal circuits instead of the card-internal system clock with a card-external system clock, like that of a card reader with which the chip card (1) over the
Schnittstelle (6) in einer elektrischen Verbindung zum Datenaustausch steht.Interface (6) is in an electrical connection for data exchange.
8. Chipkarte nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß im Chipkartenkorper (2) und/oder im Schaltungsträger (17) ein Analogsignalverstärker (19) vorgesehen ist, der ein vom Sensor (18) abgegebenes analoges Meßsignal verstärkt.8. Chip card according to one of claims 1 to 7, characterized in that an analog signal amplifier (19) is provided in the chip card body (2) and / or in the circuit carrier (17) which amplifies an analog measurement signal emitted by the sensor (18).
9. Chipkarte nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Sensor ein Temperatursensor, ein Feuchtesensor, ein Sensor zur Erfassung des pH-Werts und/oder des Redoxpotentials einer Flüssigkeit, insbesondere der von Wasser, oder ein Sensor zur Bestimmung von einem oder mehreren Blutwerten ist.9. Chip card according to one of claims 1 to 8, characterized in that the sensor is a temperature sensor, a moisture sensor, a sensor for detecting the pH and / or the redox potential of a liquid, in particular that of water, or a sensor for determining one or more blood tests.
10. Chipkarte nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, daß der Programmspeicher (12, 13, 14) ein Betriebssystem zum Betrieb des Prozessors (11) und/oder eine oder mehrere Meßprogramme zur Durchführung von Messungen mit einem oder mehreren Sensoren (18) speichert . 10. Chip card according to one of claims 5 to 9, characterized in that the program memory (12, 13, 14) an operating system for operating the processor (11) and / or one or more measurement programs for performing measurements with one or more sensors ( 18) saves.
11. Chipkarte nach einem der Ansprüche 5 bis 10, dadurch gekennzeichnet, daß der Programmspeicher (12, 13, 14) ein oder mehrere Auswertungsprogramme zur Auswertung und/oder Digitalisierung der von dem mindestens einen Sensor (18) abgegebenen Meßsignale aufweist.11. Chip card according to one of claims 5 to 10, characterized in that the program memory (12, 13, 14) has one or more evaluation programs for evaluating and / or digitizing the measurement signals emitted by the at least one sensor (18).
12. Chipkarte nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß im Chipkartenkorper (2) und/oder im Schaltungsträger (17) ein Uhren-Schaltkreis zur Zuordnung der Uhrzeit der Messung zu den erfaßten Meßdaten und/oder zur zeitgesteuerten Auslösung einer Meßdatenerfassung vorgesehen ist.12. Chip card according to one of claims 1 to 11, characterized in that in the chip card body (2) and / or in the circuit carrier (17) has a clock circuit for assigning the time of the measurement to the acquired measurement data and / or for time-controlled triggering of a measurement data acquisition is provided.
13. Chipkarte nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß im Chipkartenkorper (2) mindestens eine Betätigungseinrichtung (15) , wie ein Start- und/oder Stopschalter, vorgesehen ist, über den sich eines oder mehrere der Meßprogramme und/oder Auswertungsprogramme starten und/oder stoppen lassen.13. Chip card according to one of claims 1 to 12, characterized in that in the chip card body (2) at least one actuating device (15), such as a start and / or stop switch, is provided, via which one or more of the measurement programs and / or Start and / or stop evaluation programs.
14. Chipkarte nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß im oder auf dem Chipkartenkorper (2) eine Anzeigevorrichtung, wie ein LCD-Display und/oder ein oder mehrere LEDs (8) , vorgesehen ist, über die der14. Chip card according to one of claims 1 to 13, characterized in that a display device, such as an LCD display and / or one or more LEDs (8), is provided in or on the chip card body (2), via which the
Betriebszustand der Chipkarte (1) und/oder der Status eines Meßvorgangs und/oder eines Auswertungsvorgangs von Meßdaten angezeigt wird.Operating state of the chip card (1) and / or the status of a measurement process and / or an evaluation process of measurement data is displayed.
15. Chipkarte nach Anspruch 14, dadurch gekennzeichnet, daß die Anzeigevorrichtung (8) im oder auf der Chipkarte (1) vorgesehen ist und vorzugsweise eine streifenförmige Gestalt aufweist und/oder in einer ersten Kavität der Chipkarte (1) eingebettet ist.15. Chip card according to claim 14, characterized in that the display device (8) is provided in or on the chip card (1) and preferably a strip-shaped Has shape and / or is embedded in a first cavity of the chip card (1).
16. Chipkarte nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß im oder auf dem Chipkartenkorper (2) eine akustische Signaleinrichtung vorgesehen ist, die den Betriebszustand der Chipkarte (1) und/oder den Status eines Meßvorgangs und/oder eines Auswertungsvorgangs von Meßdaten signalisiert.16. Chip card according to one of claims 1 to 15, characterized in that an acoustic signal device is provided in or on the chip card body (2), which indicates the operating state of the chip card (1) and / or the status of a measuring process and / or an evaluation process Measured data signaled.
17. Chipkarte nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß im oder auf dem Chipkartenkorper (2) ein Leitungssystem (22), wie insbesondere ein System aus Leiterbahnen (23,24), vorgesehen ist, das zumindest den elektrischen Meßdatenspeicher (13, 14) und/oder den17. Chip card according to one of claims 1 to 16, characterized in that a line system (22), such as in particular a system of conductor tracks (23, 24), is provided in or on the chip card body (2), which at least the electrical measurement data memory ( 13, 14) and / or the
Schaltungsträger (17) mit der kontaktbehafteten und/oder kontaktlosen Schnittstelle (6) , wie insbesondere ein Funk- und/oder Infrarot -Sender und/oder -Empfänger, elektrisch verbindet.Circuit carrier (17) with the contact and / or contactless interface (6), such as in particular a radio and / or infrared transmitter and / or receiver, electrically connects.
18. Chipkarte nach Anspruch 2, dadurch gekennzeichnet, daß die Spannungsquelle durch eine Solarzelle und/oder eine Batterie (7) gebildet ist, wobei die Solarzelle und/oder die Batterie vorzugsweise eine streifenförmige Gestalt aufweist und/oder in einer zweiten Kavität der Chipkarte (1) eingebettet ist.18. Chip card according to claim 2, characterized in that the voltage source is formed by a solar cell and / or a battery (7), the solar cell and / or the battery preferably having a strip-like shape and / or in a second cavity of the chip card ( 1) is embedded.
19. Chipkartensystem mit einem Chipkartenleser und einer Datenverarbeitungseinrichtung zur Verarbeitung von aus einer Chipkarte (1) nach einem der Ansprüche 1 bis 18 ausgelesenen Daten. 19. Chip card system with a chip card reader and a data processing device for processing data read from a chip card (1) according to one of claims 1 to 18.
PCT/DE2001/000489 2000-02-17 2001-02-08 Chip card for detecting measurement data WO2001061638A1 (en)

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