WO2008107367A1 - Dispositif et procédé de formation d'un produit température-temps - Google Patents

Dispositif et procédé de formation d'un produit température-temps Download PDF

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Publication number
WO2008107367A1
WO2008107367A1 PCT/EP2008/052427 EP2008052427W WO2008107367A1 WO 2008107367 A1 WO2008107367 A1 WO 2008107367A1 EP 2008052427 W EP2008052427 W EP 2008052427W WO 2008107367 A1 WO2008107367 A1 WO 2008107367A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
unit
arrangement
time product
time
Prior art date
Application number
PCT/EP2008/052427
Other languages
German (de)
English (en)
Inventor
Klaus Preiser
Joerg Eichler
Original Assignee
Zentrum Mikroelektronik Dresden Ag
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 Zentrum Mikroelektronik Dresden Ag filed Critical Zentrum Mikroelektronik Dresden Ag
Publication of WO2008107367A1 publication Critical patent/WO2008107367A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/022—Means for indicating or recording specially adapted for thermometers for recording

Definitions

  • the invention relates to an arrangement for forming a temperature-time product, comprising a temperature sensor, a control and evaluation unit, a power supply unit and an output for outputting an output signal.
  • the invention also relates to a method for forming a temperature-time product.
  • a so-called maximum temperature load is specified for such goods. This indicates how long the product can be exposed to a higher temperature load, ie a temperature above the above-mentioned temperature threshold, before the product deteriorates and becomes unusable.
  • TTP temperature-time product
  • TTI temperature-time integral
  • This prior art describes a label (electronic label) which contains a battery and an electrical arrangement for forming a temperature-time product as well as a display ⁇ possibility in excess of a set threshold for the temperature-time product.
  • the invention is therefore based on the object to provide an arrangement and a method for forming a temperature-time product, whereby a simple, flexible formation and Speiche ⁇ tion of a temperature-time product is achieved.
  • the object in an arrangement for forming a temperature-time product of the aforementioned Art solved in that the arrangement is a temperature-time product calculating and storing datalogger unit, which includes a temperature measuring unit, the temperature ⁇ measurement, temperature-time product calculation and storage of the datalogger unit controlling timer unit and the Be ⁇ operating voltage by means of control by the timer unit to the data logger unit supplying operating voltage control unit.
  • the inventive arrangement comprises a data logger unit for temperature measurement, calculation TTP TTP evaluation and generation of an output signal, which is a battery voltage can be switched on only for a period of time not ⁇ manoeuvrable by means of an operation ⁇ voltage control unit.
  • a timer unit is provided for internally generating a time base and for timing control.
  • the arrangement has a power supply unit including a battery and a Batteriemana ⁇ ABERGEMENT unit is checked by means of which if a bat ⁇ terie is connected and which comprises state of charge the battery.
  • the arrangement according to the invention also includes a non-volatile memory for storing parameters or measured values which are retained even without the application of a voltage and can thus be read out
  • a single memory may be divided into various functional areas such as data memory and parameter memory, or multiple nonvolatile memories may be provided.
  • the data logger unit has a first nonvolatile memory for storing calibration data, a second nonvolatile memory for storing log parameters, a third nonvolatile memory for storing user data, a temperature measurement unit and a data logger controller.
  • a temperature measurement by means of an internal temperature ⁇ tursensors is determined by the data logger unit controlled by the timer unit, made and storage of the measured Temperature value and an associated time value in a non-volatile memory (EPROM) realized.
  • EPROM non-volatile memory
  • the data logger unit includes an assembly for TTP calculation and evaluation, which output signal generates also be output from ⁇ .
  • the timer means comprises a programmable oscillator, a programmable counter, a time comparison unit with a compare register, a timer control unit, and a non ⁇ volatile memory array.
  • the timer unit includes a programmable timer and counter. These are preset by parameters which are transmitted via the RFID interface in such a way that they generate a desired time base (time value).
  • the written into the same register Ver ⁇ comparison value is compared by the comparison unit with the signal generated by the timer unit value. If coincidence, a predetermined period of time delta t has expired and a start signal is generated. By means of this start signal, a control signal for controlling the operating voltage control unit is generated by the timer control unit.
  • the operating voltage control unit by means of a first output to the timer unit, and by a second off ⁇ is gear connected to the data logger unit input side to the power supply unit and the output side and that the operating voltage control unit connected by control lines to the timer unit and the data logger unit is.
  • the operating voltage control unit By the operating voltage control unit, the erfindungsge ⁇ Permitted arrangement is set, for example, at the beginning of a logistics chain in operation. For this purpose, the arrangement via RFID, a switch-on command and operating parameters is transmitted and the switch Sl is switched on.
  • the timer unit connected to the first output of the operating voltage control unit starts time counting.
  • the switch S2 is turned on. This supplies the data logger unit with the operating voltage and starts to work. For the purpose of saving energy, the switch S2 is switched off again after a predetermined duration or event-controlled.
  • the switch S1 can be switched off and the battery spared. Thus, the service life of the arrangement is extended.
  • the arrangement has an interface for data exchange and programming.
  • the interface for data exchange by an RFID unit with an antenna and an RFID control and control unit is gebil ⁇ det and that the RFID control and control unit with the power supply unit, the operating voltage control unit and the Datalogger unit is connected.
  • the arrangement according to the invention can be programmed by the user - not only at the factory. Thus, an individual adaptation to different goods and logistics chains by the user of the arrangement itself is possible. To this end, a data connection to the arrangement will be ⁇ builds using a corresponding arrangement for example via an RFID interface. About these control commands or parameters for the Pro ⁇ programming of the device can be transferred. A control command is understood, for example, as the command for switching the arrangement on or off. Examples of possible parameters are the delta time duration t, the start time point of the data onto ⁇ drawing, the temperature threshold and the TTP threshold.
  • the recorded data (temperature values with associated time values and the current TTP) are also read out via this air interface (RFID).
  • the method according to the invention does not carry out permanent TTP formation, but rather performs a temperature measurement in equidistant time steps. After this, a comparison with the predetermined, adjustable temperature threshold is performed and only if the temperature threshold is exceeded or undershot is the TTP calculated.
  • the part of the arrangement which carries out the temperature measurement and TTP calculation as well as the TTP evaluation, can be de-energized in the unneeded time and energy can be saved.
  • the arrangement can, depending on the parameters passed to it, exceed or else fall below a temperature which is likewise passed as a parameter. Check threshold and is therefore flexible.
  • Fig. 1 shows an inventive arrangement for forming a temperature-time product
  • Fig. 2 is a graphical representation of the inventive method for forming a temperature-time product.
  • the inventive arrangement comprises, as shown in Figure 1 Darge ⁇ represents the components datalogger unit 1, timer unit 2, operating voltage control unit 3, RFID unit 4, RFID control and control unit 5 with antenna 6 and Stromversor ⁇ supply unit 7, which from the battery and the associated battery management unit 9.
  • the arrangement also has an output 10 for outputting an output signal.
  • the data logger unit 1 is supplied by a by means of the operating voltage control unit 3 separately switchable operating voltage.
  • Unit 1 contains the sub-components listed below:
  • TTP calculation and evaluation 16 by means of which, after each temperature measurement, the comparison with the predetermined temperature threshold takes place and, depending on the result of this comparison, a TTP calculation and storage is carried out.
  • This subassembly 16 also generates the output ⁇ signal of the overall arrangement according to the invention, which is output at the output 10.
  • Non-volatile memory for storing calibration data 11. This also contains the control law of the programmable oscillator 17 ⁇ .
  • Non-volatile memory for storing log parameters 12. This contains the tax code for the Data logger unit 1 as time interval for the tempera ⁇ turunk, temperature thresholds, TTP thresholds and other parameters.
  • Non-volatile memory for user data 13 which occur during operation, such as temperature and associated periods of time.
  • Temperature measuring unit 14 which is started by the loggersteue ⁇ tion 15. The result is written on the one hand in the user data memory 13 and on the other hand the sub-assembly for TTP calculation and evaluation 16 provided ⁇ .
  • Data logger control 15 for generating all internal and external control signals, so the control signals for the Da ⁇ tenloggerizi 1 itself and for the timer unit 2, the operating voltage control unit 3 and the RFID control and control unit 5.
  • the assembly 15 starts and stops the timer unit 2 and receives on the other hand, after a time interval has passed through the timer unit 2, a start signal for temperature measurement.
  • the timer unit 2 is also supplied by a separately selectable by means of the loading ⁇ operating voltage control unit 3 ⁇ operation voltage.
  • the timer unit 2 consists of the nachfol ⁇ quietly listed sub-components:
  • Programmable oscillator 17 which receives from the nonvolatile memory 11 for balancing the oscillator Kalibrierparame ⁇ ter.
  • the oscillator itself generates an oscillator frequency with a low tolerance.
  • Time comparison unit 19 with a comparison register, which generates a start signal for temperature measurement and TTP calculation and storage, if the values of the comparison register and the counter match.
  • Timer control unit 20 for controlling the operation of the timer unit 2 and the operating voltage control unit 3rd
  • the timer unit 2 is either assigned a nonvolatile memory for storing parameters such as the value for the comparison register of the time comparison unit 19, or the unit 2 uses a memory area within another nonvolatile memory contained in the arrangement according to the invention, for example within the data logger unit 1.
  • the RFID unit 4, the RFID control and control unit 5 and the antenna 6 are provided according to the invention for receiving and transmitting RFID commands and thus form a possible interface 21 of the arrangement for forming a temperature-time product.
  • Other interface variants as in ⁇ example, a wired data exchange via plug contacts or contact surfaces and a contactless data exchange by means of an optical interface (IRDA) or an electrical interface (Bluetooth) are also possible.
  • both a programming of the inventive arrangement as well as the reading of the stored data can be the temperature profile recorded by the arrangement itself as well as an individual identification of the goods by means of an ID.
  • the RFID unit 4 which generates for example a profiled amplitudenmodu ⁇ 13.56 MHz carrier frequency allows the extra ⁇ transact data and clock signal and produces at the same time of the coil current via a rectifier arrangement, a supply voltage Versor-.
  • the RFID monitoring and control unit 5 interprets the data and clock signals and generates control signals for the battery management unit 9, which Radios Trustein ⁇ unit 3 and the data logger unit. 1 Both the programming of the arrangement according to the invention and the readout of the measured data (temperature values, time values and TTP) as well as an ID of the goods are carried out via the RFID interface.
  • Programmable parameters include, for example:
  • Time interval delta t which determines the time interval between two consecutive temperature measurements
  • Temperature threshold TDO or TDU for the adjustable upper or unte ⁇ re temperature threshold
  • a TTP flag by means of which it is determined whether a temperature overshoot or a temperature undershoot of an upper or lower temperature threshold is to trigger a TTP calculation
  • the operation of the arrangement should be ended or an overwriting of the oldest memory values should take place.
  • the end of the operation of the arrangement can also be signaled to the outside. If the memory values are overwritten, the initial data of the measurement is lost, but the last x measured values remain in the memory for subsequent evaluation.
  • the calculated TTP is of this rewriting ⁇ ben of measurement and time values unaffected because the TTP value is stored in a separate memory, which is only need to record a single (last / current) TTP value.
  • switch S Upon reaching the destination perishable goods, at the end of the supply chain, and after reading the data drawn on ⁇ the arrangement of the operating voltage control unit 3, switch S can be turned off.
  • the device for forming a temperature-time product can thus be brought into a de-energized, battery-saving state during the time in which it is not intended to measure and record data and can be stored temporarily and subsequently used for a new monitoring of perishable goods.
  • the data logger unit 1 controlled by the Ti ⁇ merashi 2, only connected to the operating voltage Vbat via the switch S2, when a temperature measurement and processing by the data logger unit 1 is to be performed.
  • the switch S2 is turned on via the RFID control and control unit 5 and on closing ⁇ the non-volatile memory for storing log parameters 12 with programmable parameters from the RFID control and control unit 5 via the data logger control 15 loaded.
  • the temperature-time product is only recalculated if the measured temperature has exceeded an adjustable temperature threshold, as shown in FIG.
  • TTP ⁇ ⁇ (Tmess T threshold) * delta _t ⁇ where TTP must be considered as a normalized product of a programmable time interval and a temperature overrun.
  • t tN
  • TTP delta _t * ⁇ (Tmess threshold)
  • the calculated TTP thus has, for example, as shown in Figure 2, the unit degrees second.
  • the temperature is measured for a short moment and then decided by means of a comparison with the predetermined temperature threshold, whether a temperature-time product is formed.
  • the operating voltage Vbat is supplied scarf ⁇ tet for the data logger unit.
  • the data logger controller 15 starts a temperature measurement are stored after their completion the temperature measured value and a value supplied ⁇ impaired in non-volatile memory 13 for user data.
  • This newly created TTP is compared with the adjustable TTP threshold in the module for TTP calculation and evaluation 16.
  • Exceeding a threshold TTP at the output 10 of the arrangement a corresponding output signal will be ⁇ .
  • the signaling takes place by changing the logic state of the output 10 from the state "0" to the state "1".
  • a connected display element is turned on and displayed that the product is spoiled.
  • the data logger unit 1 is turned off. All wichti ⁇ gen parameters are stored in appropriate non-volatile memories. Thus saving power, as Zvi ⁇ rule in the times of two consecutive temperature measurements is only on the timer.
  • FIG. 2 shows a recorded measurement series of temperature values in 0 C in the lower diagram.
  • the measured value acquisition always takes place after the elapse of the time period "del ta" of, for example, one second.
  • the first measured temperature value lies with a temperature of 9 0 C below the temperature threshold of 10 0 C. Thus becomes no TTP calculation triggered.
  • the second measured temperature is 11 0 C, and thus 1 DEGC above the temperature threshold of 10 0 C.
  • This over ⁇ underflow results in a TTP-calculation according to the above angege- surrounded calculation equation. The result of this calculation is shown in the diagram above and has the value of 1 degree second.
  • the following eight temperature readings are also above the temperature threshold and, as explained, lead to a recalculation of the TTP, which thus increases to about 20 degrees seconds.
  • the TTP is recalculated and increases to a value above the TTP threshold of 27 degrees seconds.
  • Non-volatile memory for storing log parameters

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

L'invention vise à mettre en oeuvre un dispositif et un procédé de formation d'un produit température-temps permettant une formation et un enregistrement simples et flexibles d'un produit température-temps. A cet effet, le dispositif selon l'invention comporte une unité d'enregistreur de données calculant et enregistrant le produit température-temps, pourvue d'une unité de mesure de température; une unité de temporisation commandant la mesure de température, le calcul du produit température-temps, et l'enregistrement de l'unité d'enregistreur de données; et une unité de commande de tension de fonctionnement fournissant la tension de fonctionnement à l'unité d'enregistreur de données par commande au moyen de l'unité de temporisation. Par ailleurs, le procédé selon l'invention consiste à réaliser une mesure de température dans des intervalles équidistants réglables; à comparer ensuite la température mesurée à un seuil de température réglable; à former un produit température-temps (TTP) en cas de dépassement du seuil de température; à enregistrer le produit température-temps (TTP), après calcul, dans une mémoire non-volatile; et à produire et émettre un signal de sortie en cas de dépassement d'un seuil de TTP réglable, pour l'affichage de ce dépassement.
PCT/EP2008/052427 2007-03-06 2008-02-28 Dispositif et procédé de formation d'un produit température-temps WO2008107367A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007011300.7 2007-03-06
DE102007011300 2007-03-06

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Publication Number Publication Date
WO2008107367A1 true WO2008107367A1 (fr) 2008-09-12

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054838B3 (de) * 2011-10-26 2013-04-25 Ebro Electronic Gmbh Datenlogger mit Mehrklassenschnittstelle
CN112070196A (zh) * 2019-06-11 2020-12-11 四川谦泰仁投资管理有限公司 一种带外接电池的无源rfid芯片及标签
WO2022079118A1 (fr) * 2020-10-14 2022-04-21 Suess Dieter Surveillance de la température à cœur de produits

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249863A (en) * 1992-02-14 1993-10-05 Texaco Inc. Temperature averaging data logger
FR2774763A1 (fr) * 1998-02-06 1999-08-13 Forterie Bruno Guy Thierry De Boitier electronique miniaturise pour surveiller la chaine du froid des produits perissables
US20040156418A1 (en) * 2002-10-17 2004-08-12 Wayne Debord Perishable product electronic label including time and temperature measurement
US20050281311A1 (en) * 2004-06-17 2005-12-22 Cryovac, Inc. Method of monitoring temperature exposure
US20060262828A1 (en) * 2005-04-29 2006-11-23 Ambrozy Rel S Stimulus indication employing polymer gels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249863A (en) * 1992-02-14 1993-10-05 Texaco Inc. Temperature averaging data logger
FR2774763A1 (fr) * 1998-02-06 1999-08-13 Forterie Bruno Guy Thierry De Boitier electronique miniaturise pour surveiller la chaine du froid des produits perissables
US20040156418A1 (en) * 2002-10-17 2004-08-12 Wayne Debord Perishable product electronic label including time and temperature measurement
US20050281311A1 (en) * 2004-06-17 2005-12-22 Cryovac, Inc. Method of monitoring temperature exposure
US20060262828A1 (en) * 2005-04-29 2006-11-23 Ambrozy Rel S Stimulus indication employing polymer gels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054838B3 (de) * 2011-10-26 2013-04-25 Ebro Electronic Gmbh Datenlogger mit Mehrklassenschnittstelle
CN112070196A (zh) * 2019-06-11 2020-12-11 四川谦泰仁投资管理有限公司 一种带外接电池的无源rfid芯片及标签
CN112070196B (zh) * 2019-06-11 2023-09-15 四川谦泰仁投资管理有限公司 一种带外接电池的无源rfid芯片及标签
WO2022079118A1 (fr) * 2020-10-14 2022-04-21 Suess Dieter Surveillance de la température à cœur de produits

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