EP2652461A1 - Procédé pour surveiller le fonctionnement d'un appareil de terrain - Google Patents

Procédé pour surveiller le fonctionnement d'un appareil de terrain

Info

Publication number
EP2652461A1
EP2652461A1 EP11794677.2A EP11794677A EP2652461A1 EP 2652461 A1 EP2652461 A1 EP 2652461A1 EP 11794677 A EP11794677 A EP 11794677A EP 2652461 A1 EP2652461 A1 EP 2652461A1
Authority
EP
European Patent Office
Prior art keywords
event
field device
stored
echo
complex
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.)
Withdrawn
Application number
EP11794677.2A
Other languages
German (de)
English (en)
Inventor
Manfred Hammer
Dietmar Spanke
Herbert Schroth
Hans Germann
Michael Heim
Andreas Mayr
Andreas MÖLLER
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.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co KG
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 Endress and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Publication of EP2652461A1 publication Critical patent/EP2652461A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/10—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for switching-in of additional or auxiliary indicators or recorders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/23—Recording or storing data
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31121—Fielddevice, field controller, interface connected to fieldbus
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof

Definitions

  • a complex measurement signal is, for example, an echo curve or an envelope or um
  • Measured signal measured value that is above or below a predetermined limit the rate of change of the level when it exceeds or falls below a predetermined limit. Furthermore, it is provided that the defined event can be freely selected by a user.
  • Bit count eg 8 bit
  • Bit count eg 8 bit
  • FIG. 1 shows a measuring device 1 operating according to the transit time measuring method for determining the filling level F of a medium 7, which is mounted on the container 5 via a connection piece.
  • the measuring device 1 consists of a measuring signals freely radiating into the container 5 transmitting / receiving element 6 and a transmitter 9.
  • the transmitter 9 has u.a. a high-frequency module 12, a transmitting / receiving unit 3, a control / evaluation unit 4 for signal processing of the measuring signals and for controlling the measuring device 1 and a communication unit 2, which allows communication via a not shown in FIG. 1 bus system.
  • the control / evaluation unit 4 is still a
  • Waveguides can be used in TDR method.
  • the measuring signals are generated in the form of high-frequency transmission signals S and emitted via the transmitting / receiving element 6 in a predetermined emission characteristic in the direction of the medium 7.
  • the transmitted signals S reflected at the interface 8 of the medium 7 are received as echo signals R from the transmitting / receiving element 6 and subsequently from the transmitting / receiving unit 3.
  • the downstream control / evaluation unit 4 uses the echo signals R to determine the so-called echo function 10, which represents the amplitudes of the echo signals R as a function of the distance traveled x or as a function of the corresponding transit time t.
  • an analog / digital conversion of the analog echo function 10 and the echo curve 10 a digitized envelope 1 1 is generated.
  • echo function 10 is used, this term encompassing the terms echo curve 10, envelope function or envelope.
  • Echo signal K which is caused by the reflection at a jammer 9.
  • the false echo signal K is caused by the internals 9 in the case shown.
  • the internals 9 which cause the spurious echo signals K may, for example, be a stirrer or an inflow pipe.
  • the useful echo signal NE that is, the surface 8 of the medium 7 reflected Measurement signal component to reliably identify and / or to determine the position xR of the useful echo signal 15 in the determined echo function 10 and in the digital envelope 1 1 exactly. From the exact determination of
  • Measuring position xR of the useful echo signal NE in the echo function 10 depends decisively on which measurement accuracy can be achieved with a level gauge 1 under the given measurement conditions in the container 5.
  • Level gauge 1 shown at a time t. Shown in particular are the reflection signals R in the echo curve 10 and their
  • the transmission signals S in the case shown are
  • High frequency pulses generated and transmitted via a coaxial cable to the coupling 1 1.
  • the transmission signals S are coupled out of the coaxial ladder system and radiated via the antenna 6. In the area of transitions from one component to the next step
  • Transmission signal S at least partially reflected back as reflection signals NE.
  • Suitable evaluation methods must in particular be such that they do not interpret the false echo signals R, K or even a double echo signal DE as useful echo signal NE.
  • a suitable evaluation algorithm is in the non-prepublished DE 10 2010 042 525.7
  • the function of a field device which provides a complex measurement signal S is monitored.
  • information about the Occurrence of the error even at a later date are still reliably available.
  • a radar level gauge 1 is described in FIGS. 1 and 2. This meter 1 provides a complex measurement signal, the echo curve 10, which is obtained using a plurality of temporally successive individual measurements.
  • the method according to the invention carries out the following method steps:
  • the complex measuring signals that is to say a plurality of echo curves 10 in the specific case, are stored within a predetermined time window ⁇ .
  • the event is, for example, the loss of the useful echo signal NE reflected at the filling material 7, around which
  • the user of the measuring device 1 has the opportunity to select an event from a list of offered events. Subsequently, the predetermined event is preferred based on the

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

L'invention concerne un procédé pour surveiller le fonctionnement d'un appareil de terrain (1), ce dernier (1) fournissant un signal de mesure complexe (10) qui est produit en utilisant une pluralité de mesures individuelles se succédant dans le temps. Le procédé comprend les étapes suivantes: - les signaux de mesure complexes (10) sont mis en mémoire dans une fenêtre de temps prédéfinie; - la survenance d'un événement prédéfini est surveillée dans l'appareil de terrain (1); - dans le cas où l'événement prédéfini ne survient pas dans la fenêtre de temps prédéfinie, les signaux de mesure complexes (10) mis en mémoire sont écrasés; dans le cas où l'événement prédéfini survient dans la fenêtre de temps prédéfinie, un premier nombre défini de signaux de mesure complexes (10) qui ont été déterminés immédiatement avant la survenance de l'événement dans le temps ainsi qu'un deuxième nombre défini de signaux de mesure complexes (10) qui ont été déterminés immédiatement après la survenance de l'événement dans le temps sont gelés.
EP11794677.2A 2010-12-17 2011-12-01 Procédé pour surveiller le fonctionnement d'un appareil de terrain Withdrawn EP2652461A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063430A DE102010063430A1 (de) 2010-12-17 2010-12-17 Verfahren zur Überwachung der Funktion eines Feldgeräts
PCT/EP2011/071459 WO2012079992A1 (fr) 2010-12-17 2011-12-01 Procédé pour surveiller le fonctionnement d'un appareil de terrain

Publications (1)

Publication Number Publication Date
EP2652461A1 true EP2652461A1 (fr) 2013-10-23

Family

ID=45346436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11794677.2A Withdrawn EP2652461A1 (fr) 2010-12-17 2011-12-01 Procédé pour surveiller le fonctionnement d'un appareil de terrain

Country Status (5)

Country Link
US (1) US9170145B2 (fr)
EP (1) EP2652461A1 (fr)
CN (1) CN103261850B (fr)
DE (1) DE102010063430A1 (fr)
WO (1) WO2012079992A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2752724B1 (fr) * 2013-01-08 2016-06-01 VEGA Grieshaber KG Procédé de contrôle d'appareils de terrain, appareil de commande, élément de programmation et support lisible sur ordinateur
DE102016101756A1 (de) * 2016-02-01 2017-08-03 Vega Grieshaber Kg Verfahren zur Bestimmung und Anzeige der optimalen Materialstärke bei der Füllstandmessung mit Radarsensoren
DE102016124982A1 (de) 2016-12-20 2018-06-21 Endress+Hauser SE+Co. KG Temperaturbeständiges Füllstandsmessgerät
CN107482616B (zh) * 2017-07-06 2020-04-03 华北电力大学 一种分布式电源高频阻抗等值建模方法
DE102018102366A1 (de) * 2018-02-02 2019-08-08 Endress+Hauser SE+Co. KG Füllstandsmessgerät
DE102018117164A1 (de) 2018-07-16 2020-01-16 Endress+Hauser SE+Co. KG Füllstandsmessgerät
DE102018123429A1 (de) * 2018-09-24 2020-03-26 Endress+Hauser SE+Co. KG Füllstandsmessgerät
DE102018123432A1 (de) * 2018-09-24 2020-03-26 Endress+Hauser SE+Co. KG Detektion von Ereignis-abhängigen Zuständen bei Füllstandsmessung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004092684A2 (fr) * 2003-04-16 2004-10-28 Endress+Hauser Gmbh+Co. Kg Procede d'enregistrement de signaux de mesure et dispositif correspondant

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754449A (en) * 1995-04-25 1998-05-19 Instrumented Sensor Technology, Inc. Method and apparatus for recording time history data of physical variables
DE19629588C2 (de) * 1996-07-23 2000-05-25 Monika Heck Signalaufzeichnungsverfahren und Vorrichtung zur Durchführung des Verfahrens
DE10024959B4 (de) 2000-05-22 2014-08-21 Endress + Hauser Gmbh + Co. Kg Vorrichtung zum unidirektionalen oder bidirektionalen Austausch von Daten
US6377196B1 (en) * 2000-07-14 2002-04-23 Lucent Technologies Inc. Method and apparatus for analog-to-digital conversion using attenuated analog signals
DE10052836A1 (de) 2000-10-24 2002-05-16 Endress Hauser Gmbh Co Vorrichtung zur Bestimmung und/oder Überwachung einer Prozeßvariablen
DE10260962A1 (de) * 2002-12-20 2004-07-01 Endress + Hauser Gmbh + Co. Kg Füllstandsmeßgerät und Verfahren zur Füllstandsmessung nach dem Laufzeitprinzip
US7516043B2 (en) 2003-07-31 2009-04-07 Fisher Controls International Llc Triggered field device data collection in a process control system
DE102004055551A1 (de) * 2004-11-17 2006-05-18 Endress + Hauser Gmbh + Co. Kg Verfahren zur Auswertung und Korrektur von Gesamtmesssignalen
US7781737B2 (en) * 2006-12-20 2010-08-24 Schlumberger Technology Corporation Apparatus and methods for oil-water-gas analysis using terahertz radiation
DE102007027276A1 (de) * 2007-06-11 2008-12-18 Endress + Hauser Gmbh + Co. Kg Feldgerät mit einer Vorrichtung zur Durchführung von Diagnoseverfahren
DE102010042525A1 (de) 2010-10-15 2012-04-19 Endress + Hauser Gmbh + Co. Kg Verfahren zur Ermittlung und Überwachung des Füllstands eines Mediums in einem Behälter mittels eines Füllstandsmessgeräts nach einem Laufzeitmessverfahren

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004092684A2 (fr) * 2003-04-16 2004-10-28 Endress+Hauser Gmbh+Co. Kg Procede d'enregistrement de signaux de mesure et dispositif correspondant

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Taschenbuch der Messtechnik mit Schwerpunkt Sensortechnik", 1 January 1996, MÜNCHEN ; WIEN : OLDENBOURG, 1996, ISBN: 978-3-486-23670-5, article HANS-ROLF TRÄNKLER: "Transienten-Speicherung", pages: 174, XP055481814 *
See also references of WO2012079992A1 *
XXX: "Digitalspeicher-Geräte (Laborgeräte)", 1 November 2010 (2010-11-01), pages 1 - 6, XP055481687, Retrieved from the Internet <URL:http://www.carl-engler-schule.de/culm/culm/culm2/th_messtechnik/laborgeraete/digispeicher2.pdf> [retrieved on 20180606] *

Also Published As

Publication number Publication date
US9170145B2 (en) 2015-10-27
CN103261850B (zh) 2016-09-21
DE102010063430A1 (de) 2012-06-21
US20120158363A1 (en) 2012-06-21
WO2012079992A1 (fr) 2012-06-21
CN103261850A (zh) 2013-08-21

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