EP0780822A1 - Méthode et dispositif pour la transmission sans contact de valeurs mesurées - Google Patents

Méthode et dispositif pour la transmission sans contact de valeurs mesurées Download PDF

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Publication number
EP0780822A1
EP0780822A1 EP96203531A EP96203531A EP0780822A1 EP 0780822 A1 EP0780822 A1 EP 0780822A1 EP 96203531 A EP96203531 A EP 96203531A EP 96203531 A EP96203531 A EP 96203531A EP 0780822 A1 EP0780822 A1 EP 0780822A1
Authority
EP
European Patent Office
Prior art keywords
measuring point
base station
transmitter
receiver
evaluation circuit
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP96203531A
Other languages
German (de)
English (en)
Other versions
EP0780822B1 (fr
Inventor
Siegfried Ritter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Corporate Intellectual Property GmbH
Philips Patentverwaltung GmbH
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Philips Corporate Intellectual Property GmbH, Philips Patentverwaltung GmbH, Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Philips Corporate Intellectual Property GmbH
Publication of EP0780822A1 publication Critical patent/EP0780822A1/fr
Application granted granted Critical
Publication of EP0780822B1 publication Critical patent/EP0780822B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/04—Arrangements for transmitting signals characterised by the use of a wireless electrical link using magnetically coupled devices

Definitions

  • the invention relates to a method for the contactless transmission of measured values and a corresponding arrangement for the contactless transmission of measured values.
  • Methods or arrangements for contactless transmission are preferably used for measured values from those measuring points which are not easily accessible and whose measured values are not required continuously. This includes, for example, many consumption data measurements and temperature measurements such as measuring a room temperature to control a heating system. Such methods or arrangements can also be used advantageously in the medical field, when physiological measured values from an implanted measuring point are required over a longer period of time.
  • a method and a device are known with which measured values from a remote measuring point can be detected by a reading device.
  • a reading device At the measuring point there is a sensor and an electronic interface circuit which is operated by a local energy source and which converts the measured values of the sensor into preferably digital measured data.
  • both the measuring point and the reading device are provided with a transmitting / receiving arrangement.
  • the interface circuit In order to consume as little energy as possible from the energy source, the interface circuit is switched inactive for longer periods of time and is only switched to receive periodically. If data are to be transmitted, the reading device sends out a data request signal, possibly several times in succession, until a request signal falls within a period in which the interface circuit is activated.
  • This interface circuit then initiates the transmission of a measured value or a sequence of measured values.
  • This transmission of data requires a relatively large amount of energy from the energy source, even if only for a short time, so that the energy source is heavily loaded and has a short lifespan, particularly in the case of frequent measurement data transmission.
  • EP 0 601 739 A2 discloses a method and an arrangement for data transmission from a measuring point with the aid of an interrogation circuit, the circuit of the measuring point and the interrogation circuit being coupled to one another via antennas.
  • the energy for operating the sensor and converting the measured values and for transmitting them is supplied via these antennas.
  • the measuring point therefore does not need its own energy source.
  • a measurement can only be carried out if the interface circuit is active.
  • practically only one measuring point can be detected in this way by an interface circuit.
  • this known method the case can no longer occur that a measurement or transmission of measurement data is no longer possible because an energy source is exhausted prematurely, since the query circuit is easily accessible or stationary and can therefore be provided with sufficiently large energy reserves.
  • the invention is based on the object of specifying a method or an arrangement with which the measurement data can be acquired by preferably a plurality of measurement points, these measurement points containing energy sources whose lifespan is as long as possible with small dimensions.
  • the energy source of the or each measuring point is used only for recording and converting the measured values, while for transmitting, ie for sending the measured data from the measuring point to a base station, the energy emitted by the base station is used.
  • the energy source of the measuring point for sending the data is not loaded and thus has a longer service life.
  • the base station in particular if it is used for the transmission of measured values from several measuring points, can be equipped with such a transmission power that even at a certain distance from the Sufficient energy is received in the measuring point, which can be used to transmit the measured values.
  • measurement values of the sensor are frequently converted into measurement data and temporarily stored in a memory of the evaluation circuit.
  • the data acquisition between the transmission processes must be fed by the energy source of the measuring point.
  • the stored measurement data are then transmitted for transmission from the memory via the transmitter / receiver of the measuring point to the base station.
  • the energy received in the measuring point from the base station can be used to transmit the measurement data by generating a direct voltage from this energy, which is taken up, for example, via a coil or a capacitor, which is used to feed the transmitter of the measuring point.
  • This transmitter then preferably transmits on a different frequency than the base station.
  • the base station and the measuring point are inductively coupled to each other via an antenna designed as a coil, that a controllable impedance is connected to the coil of the measuring point, which is controlled by the measurement data, and that the change in the base station of the Impedance is evaluated.
  • This principle is known in principle in data exchange arrangements with a portable data carrier and a fixed station, for example from DE 43 23 530 A1, which also describes the recharging of an energy store by means of the energy emitted by the fixed station.
  • the base station 1 contains a control arrangement 14 which is generally formed by a processor, in particular a microprocessor with further elements.
  • This control arrangement 14 controls a transmitter / receiver 12, which contains, inter alia, an oscillator and a demodulator. These are connected to a series resonant circuit comprising a series connection of a capacitor 11 and a coil 10, this coil representing an antenna.
  • this coil 10 is inductively coupled to a coil 20 of the measuring point 2, which represents the antenna of this measuring point.
  • the coil 20 forms a parallel resonant circuit with a capacitor 21, which is connected, inter alia, to a rectifier 22, which generates a DC voltage from the voltage induced in the coil 20. If this DC voltage has a sufficiently large value, a charging voltage for an energy store 26, which is shown here as an accumulator, is generated in a charging circuit 24 and the accumulator 26 is charged therewith.
  • the two voltage poles of the accumulator 26 are designated V S and V D and are connected to the correspondingly drawn supply voltage connections of two elements 32 and 34, which are explained below.
  • the parallel resonant circuit comprising the coil 20 and the capacitor 21 is also connected to a transmitter 30 and a receiver 28 of the measuring point 2.
  • the receiver 28 demodulates a signal with which the transmitter / receiver 12 of the base station 1 has modulated the vibration emitted via the series resonant circuit from the coil 10 and the capacitor 11. This modulation contains, in particular, a command for the measuring station 2 to subsequently transmit measurement data after this command.
  • This command is fed to an evaluation circuit 34 which can also be designed as a simple microprocessor and which is coupled to a sensor 36 which emits measured values.
  • a measured value can be represented, for example, by an analog electrical signal, and this is converted into digital measured data in the evaluation circuit 34.
  • the transmitter 30 contains the series connection of a switch and an impedance Z.
  • this impedance can be a resistor which, when the switch is closed, loads the resonant circuit from the coil 20 and the capacitor 21.
  • This additional load can be evaluated in the transmitter / receiver 12 of the base station 1, for example in that a higher current flows from the coil 10 and the capacitor 11 of the base station 2 in the series resonant circuit when there is an additional load in the measuring point 1 .
  • the impedance Z can also be designed, for example, as a capacitor, so that when the switch is closed, the resonance frequency of the parallel resonant circuit consisting of the coil 20 and the capacitor 21 and the capacitive impedance Z then adjusted to a different value. This can also be evaluated in the transmitter / receiver 12.
  • the series resonant circuit comprising the coil 10 and the capacitor 11 and the parallel resonant circuit comprising the coil 20 and the capacitor 21 are tuned to the substantially identical resonance frequency, at least when the switch in the transmitter 30 is open.
  • the transmission of the measured values from the measuring point 2 to the base station 1 thus takes place in that only one switch is closed or opened.
  • the control signal required to control the switch requires very little power, especially if the switch is designed as a field effect transistor. If the evaluation circuit 34 and the non-volatile memory 32 are also implemented in MOS technology, very little electrical energy from the accumulator 26 is required for their operation. As a result, it is possible that, even during the time in which the measuring point 2 is not coupled to the base station 1 or the latter does not emit a signal, measured values from the sensor 36 are repeatedly converted into measured data and stored in the memory 32 one after the other.
  • the memory 32 can also be used to store a program according to which the arrangement 34 operates.
  • This program or parts of programs can also be written into the memory 32 by the base station 1 via the receiver 28 of the measuring point 2 .
  • the evaluation program for the measured values of the sensor 36 can be changed during the operation of the measuring point.
  • the elements 22, 24 and 28 to 34 can expediently be combined in a single integrated circuit in order to achieve the smallest possible and inexpensive construction.
  • External memories can then be connected in addition to or even instead of the sensor 36 via the interface to the sensor 36 or even more favorably to an interface to the memory 32 which is led out of the integrated circuit, as a result of which the integrated circuit serves as an enlarged memory for a data exchange arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Near-Field Transmission Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Direct Current Feeding And Distribution (AREA)
EP96203531A 1995-12-20 1996-12-13 Méthode et dispositif pour la transmission sans contact de valeurs mesurées Expired - Lifetime EP0780822B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547684 1995-12-20
DE19547684A DE19547684A1 (de) 1995-12-20 1995-12-20 Verfahren und Anordnung zum kontaktlosen Übertragen

Publications (2)

Publication Number Publication Date
EP0780822A1 true EP0780822A1 (fr) 1997-06-25
EP0780822B1 EP0780822B1 (fr) 2003-07-09

Family

ID=7780728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96203531A Expired - Lifetime EP0780822B1 (fr) 1995-12-20 1996-12-13 Méthode et dispositif pour la transmission sans contact de valeurs mesurées

Country Status (4)

Country Link
US (1) US5859873A (fr)
EP (1) EP0780822B1 (fr)
JP (1) JP3842854B2 (fr)
DE (2) DE19547684A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009127656A1 (fr) * 2008-04-17 2009-10-22 Oerlikon Leybold Vacuum Gmbh Pompe à vide
WO2012065968A1 (fr) * 2010-11-19 2012-05-24 Endress+Hauser Gmbh+Co.Kg Appareil de mesure permettant de déterminer et/ou de surveiller au moins une grandeur de processus
WO2016202730A1 (fr) * 2015-06-15 2016-12-22 Sentronic GmbH Gesellschaft für optische Meßsysteme Dispositif de mesure pour déterminer des propriétés physiques, des propriétés chimiques, des propriétés biologiques et/ou des substances de l'environnement d'au moins un capteur ou de l'au moins un capteur faisant partie du dispositif de mesure
US12003902B2 (en) 2015-06-15 2024-06-04 Sentronic Gmbh Gesellschaft Fur Optische Messsysteme System and method for transmitting information

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5970393A (en) * 1997-02-25 1999-10-19 Polytechnic University Integrated micro-strip antenna apparatus and a system utilizing the same for wireless communications for sensing and actuation purposes
JP2001291181A (ja) * 2000-04-07 2001-10-19 Ricoh Elemex Corp センサ装置及びセンサシステム
EP1275207B1 (fr) * 2000-04-18 2005-06-29 Schleifring und Apparatebau GmbH Dispositif de transfert d'energie electrique ou de signaux
JP3839224B2 (ja) * 2000-06-29 2006-11-01 株式会社山武 集積化センサ素子及びこれを用いた計測システム
US6668618B2 (en) * 2001-04-23 2003-12-30 Agilent Technologies, Inc. Systems and methods of monitoring thin film deposition
US6992594B2 (en) * 2001-05-18 2006-01-31 Douglas Dudley Pipeline monitoring system
DE10255741A1 (de) * 2002-11-28 2004-06-09 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Modularer Messumformer mit galvanisch getrennten Messfühler
US7142114B2 (en) * 2003-09-30 2006-11-28 General Electric Company Non-contact patient temperature measurement
EP1844299B1 (fr) * 2005-01-25 2011-10-05 Nxp B.V. Reseau de circuits de detection, dispositif de commande pour faire fonctionner un reseau de circuits de detection et systeme de detection
US7545272B2 (en) 2005-02-08 2009-06-09 Therasense, Inc. RF tag on test strips, test strip vials and boxes
US20060283252A1 (en) * 2005-06-17 2006-12-21 Honeywell International Inc. Passive acoustic wave sensor system
KR101362954B1 (ko) * 2006-03-10 2014-02-12 가부시키가이샤 한도오따이 에네루기 켄큐쇼 반도체 장치 및 그 동작방법
EP2002383B1 (fr) 2006-03-15 2012-04-25 Semiconductor Energy Laboratory Co., Ltd. Dispositif à semi-conducteurs
DE102006051900A1 (de) 2006-10-31 2008-05-08 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung und/oder Überwachung mindestens einer Prozessgröße
JP5412034B2 (ja) 2006-12-26 2014-02-12 株式会社半導体エネルギー研究所 半導体装置
US8564413B2 (en) 2008-04-30 2013-10-22 Stmicroelectronics (Rousset) Sas Recharge of an active transponder
DE102008057751B4 (de) 2008-11-17 2011-03-10 Langerfeldt, Michael, Dr. Dr. Vorrichtung und Verfahren zum Lastmanagement
US7990103B2 (en) * 2008-11-24 2011-08-02 Sony Ericsson Mobile Communications Ab Portable electronic apparatus, and battery charging system comprising an antenna arrangement for a radio receiver
DE102011079827A1 (de) * 2011-07-26 2013-01-31 Endress + Hauser Gmbh + Co. Kg Verfahren und Vorrichtung zur Kommunikation mittels eines Transformators
DE112019003276A5 (de) 2018-06-29 2021-03-18 Brusa Elektronik Ag Induktive leistungsübertragung mit schwingkreis und verfahren zum betrieb der vorrichtung

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GB2138609A (en) * 1983-04-19 1984-10-24 Emi Ltd Electronic counter for mechanical drive
US4571599A (en) 1984-12-03 1986-02-18 Xerox Corporation Ink cartridge for an ink jet printer
USRE32572E (en) 1985-04-03 1988-01-05 Xerox Corporation Thermal ink jet printhead and process therefor
US4833491A (en) 1988-06-15 1989-05-23 Xerox Corporation Thermal ink jet printer adapted to operate in monochrome, highlight or process color modes
EP0457306A2 (fr) * 1990-05-18 1991-11-21 Gas-, Elektrizitäts- Und Wasserwerke Köln Ag. Procédé et dispositif pour lire et écrire une mémoire de données à microprocesseur, en particulier d'un appareil de comptage ou de mesure d'enregistrement
US5138332A (en) 1990-10-29 1992-08-11 Xerox Corporation Ink jet printing apparatus
US5221397A (en) 1992-11-02 1993-06-22 Xerox Corporation Fabrication of reading or writing bar arrays assembled from subunits
US5289211A (en) 1991-04-15 1994-02-22 Ing. S. Olivetti & C., S.p.A. Ink detecting device for a liquid-ink printing element
WO1994011851A1 (fr) * 1992-11-10 1994-05-26 Micro-Sensys Gmbh Module de telemetrie miniaturise
EP0601739A2 (fr) 1992-11-25 1994-06-15 Simmonds Precision Products Inc. Structure et procédé de traitement de données
US5332812A (en) 1986-03-10 1994-07-26 Board Of Regents, The University Of Texas System Solid-phase substrate containing modified heparin
DE4323530A1 (de) 1993-07-14 1995-01-19 Philips Patentverwaltung Datenaustauschanordnung
US5414452A (en) 1992-06-08 1995-05-09 Ing. C. Olivetti & C., S.P.A. Recognition of ink expiry in an ink jet printing head
WO1995027272A1 (fr) 1994-04-04 1995-10-12 Motorola Inc. Procede de relevement a distance de compteurs

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US4837556A (en) * 1985-04-15 1989-06-06 Kabushiki Kaisha Nihon Denzai Kogyo Kenkyusho Signal transmission device
GB8627241D0 (en) * 1986-11-14 1986-12-17 Chubb Lips Nederland Bv Identification token
NL8700861A (nl) * 1987-04-13 1988-11-01 Nedap Nv Lees-, schrijfsysteem met miniatuur informatiedrager.
DE3722728C1 (en) * 1987-07-09 1988-12-08 Ulrich Schoberer Work meter for a crank drive

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138609A (en) * 1983-04-19 1984-10-24 Emi Ltd Electronic counter for mechanical drive
US4571599A (en) 1984-12-03 1986-02-18 Xerox Corporation Ink cartridge for an ink jet printer
USRE32572E (en) 1985-04-03 1988-01-05 Xerox Corporation Thermal ink jet printhead and process therefor
US5332812A (en) 1986-03-10 1994-07-26 Board Of Regents, The University Of Texas System Solid-phase substrate containing modified heparin
US4833491A (en) 1988-06-15 1989-05-23 Xerox Corporation Thermal ink jet printer adapted to operate in monochrome, highlight or process color modes
EP0457306A2 (fr) * 1990-05-18 1991-11-21 Gas-, Elektrizitäts- Und Wasserwerke Köln Ag. Procédé et dispositif pour lire et écrire une mémoire de données à microprocesseur, en particulier d'un appareil de comptage ou de mesure d'enregistrement
US5138332A (en) 1990-10-29 1992-08-11 Xerox Corporation Ink jet printing apparatus
US5289211A (en) 1991-04-15 1994-02-22 Ing. S. Olivetti & C., S.p.A. Ink detecting device for a liquid-ink printing element
US5414452A (en) 1992-06-08 1995-05-09 Ing. C. Olivetti & C., S.P.A. Recognition of ink expiry in an ink jet printing head
US5221397A (en) 1992-11-02 1993-06-22 Xerox Corporation Fabrication of reading or writing bar arrays assembled from subunits
WO1994011851A1 (fr) * 1992-11-10 1994-05-26 Micro-Sensys Gmbh Module de telemetrie miniaturise
EP0601739A2 (fr) 1992-11-25 1994-06-15 Simmonds Precision Products Inc. Structure et procédé de traitement de données
DE4323530A1 (de) 1993-07-14 1995-01-19 Philips Patentverwaltung Datenaustauschanordnung
WO1995027272A1 (fr) 1994-04-04 1995-10-12 Motorola Inc. Procede de relevement a distance de compteurs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009127656A1 (fr) * 2008-04-17 2009-10-22 Oerlikon Leybold Vacuum Gmbh Pompe à vide
WO2012065968A1 (fr) * 2010-11-19 2012-05-24 Endress+Hauser Gmbh+Co.Kg Appareil de mesure permettant de déterminer et/ou de surveiller au moins une grandeur de processus
CN103221789A (zh) * 2010-11-19 2013-07-24 恩德莱斯和豪瑟尔两合公司 用于确定和/或监测至少一个过程变量的测量设备
CN103221789B (zh) * 2010-11-19 2015-05-27 恩德莱斯和豪瑟尔两合公司 用于确定和/或监测至少一个过程变量的测量设备
WO2016202730A1 (fr) * 2015-06-15 2016-12-22 Sentronic GmbH Gesellschaft für optische Meßsysteme Dispositif de mesure pour déterminer des propriétés physiques, des propriétés chimiques, des propriétés biologiques et/ou des substances de l'environnement d'au moins un capteur ou de l'au moins un capteur faisant partie du dispositif de mesure
US12003902B2 (en) 2015-06-15 2024-06-04 Sentronic Gmbh Gesellschaft Fur Optische Messsysteme System and method for transmitting information

Also Published As

Publication number Publication date
DE59610590D1 (de) 2003-08-14
DE19547684A1 (de) 1997-06-26
JPH09215228A (ja) 1997-08-15
EP0780822B1 (fr) 2003-07-09
US5859873A (en) 1999-01-12
JP3842854B2 (ja) 2006-11-08

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