WO2001057477A1 - Systeme de controle et procede permettant de controler a distance des grandeurs de mesure - Google Patents

Systeme de controle et procede permettant de controler a distance des grandeurs de mesure Download PDF

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Publication number
WO2001057477A1
WO2001057477A1 PCT/EP2001/001082 EP0101082W WO0157477A1 WO 2001057477 A1 WO2001057477 A1 WO 2001057477A1 EP 0101082 W EP0101082 W EP 0101082W WO 0157477 A1 WO0157477 A1 WO 0157477A1
Authority
WO
WIPO (PCT)
Prior art keywords
display
monitoring system
image
evaluation unit
measured value
Prior art date
Application number
PCT/EP2001/001082
Other languages
German (de)
English (en)
Other versions
WO2001057477A8 (fr
Inventor
Marc Dierckx
Original Assignee
Messer Griesheim 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 Messer Griesheim Gmbh filed Critical Messer Griesheim Gmbh
Priority to AU2001237363A priority Critical patent/AU2001237363A1/en
Publication of WO2001057477A1 publication Critical patent/WO2001057477A1/fr
Publication of WO2001057477A8 publication Critical patent/WO2001057477A8/fr

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Classifications

    • 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
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/39—Scanning a visible indication of the measured value and reproducing this indication at the remote place, e.g. on the screen of a cathode ray tube

Definitions

  • the invention relates to a monitoring system and a method for remotely monitoring measured variables, in particular when storing goods.
  • the invention is therefore to use a measuring device to record a physical or chemical parameter continuously or at regular time intervals and to visualize it on a display.
  • This measured value which is visualized on the display, is not read by operating personnel, but is recorded by a recording device and transmitted to a control center.
  • the measurement parameter is back-calculated with sufficient accuracy from the transmitted image using the evaluation unit.
  • the monitoring system according to the invention can also be easily retrofitted to existing systems equipped with analog measuring technology.
  • any analog or digital measuring device can be used as the "measuring device".
  • Any public or private cable or radio network can be considered as a "data transmission medium”.
  • the term "control center” is to be understood here as any place at which the electronic pulses transmitted by means of the data transmission medium can be received and read by means of the evaluation unit. It does not have to be a permanently installed control center.
  • An electronic surveillance camera the lens of which is aimed at the display, is advantageously used as the recording device.
  • the surveillance camera can take pictures of the display continuously, at predetermined time intervals or upon a corresponding signal and feed them into the data transmission medium.
  • the focal length of the camera is expediently adjustable, for example by means of a zoom lens, and / or the position of the recording device can be adjusted relative to the display.
  • the adjustment takes place automatically by means of motors and can be controlled from the control center using appropriate control commands.
  • a plurality of displays arranged side by side can be recorded or a freely selectable section can be mapped in the vicinity of the measuring device and transmitted to the control center.
  • the continuation of the monitoring can also be ensured in this way.
  • the data transmission medium comprises a public data network.
  • the telephone network, the power network or another public supply network can be considered as the data network.
  • the Internet is provided as the public data transmission medium.
  • the user of the invention can thus access the data of the recording device entered into the data transmission medium worldwide.
  • the recording device is in data exchange with a computer unit in which the image information recorded by the recording device can be temporarily stored, it is possible to:
  • Data transmission medium is in data exchange with the control center. In this way, larger systems secured by a number of recording devices can also be monitored by a single evaluation device, such as a personal computer. If required, individual recording devices can also be controlled separately.
  • An electronic data processing device such as a personal computer, is expediently provided as the preferred evaluation unit.
  • An electronic data processing device such as a personal computer, is expediently provided as the preferred evaluation unit.
  • To the "Pattern recognition software” is provided for evaluating the data transmitted as an image, which automatically reads the measured values from the image according to an entered program, for example by means of a subtraction method in which the transmitted image is subtracted from a reference image and the difference is assigned to certain measured values.
  • pointer instruments as measuring devices.
  • the pointers are provided with a marking, which is filtered out by a filter device in the receiving device and / or in the evaluation unit for further processing.
  • the pointer of a pointer instrument can be marked with a specific color, and the receiving device is provided with a filter that is only permeable for this color.
  • a digital frequency filter only in the software of the evaluation unit, which only allows image components with a frequency corresponding to the marking color to be evaluated. As a result, the effort involved in the evaluation using "pattern recognition software" can be reduced and the accuracy increased significantly.
  • a further preferred embodiment provides that the evaluation unit is in data exchange with a signal transmitter which emits an optical and / or acoustic signal when a certain size of the measured value is reached.
  • the arrangement of the receiving device and the display in a housing, which is made of transparent material, such as plexiglass, at least in the area of the display, is particularly advantageous.
  • the housing serves to protect against the weather.
  • the transparent part of the housing allows the operator to read the display if necessary, without having to open the housing.
  • the object of the invention is also achieved by a method according to claim 12.
  • measurement results of relevant physical or chemical parameters are visualized on a display.
  • the display with the visualized measured values is captured and the captured data is transmitted to an evaluation unit, by means of which the measured value of the parameter can be calculated back from the transmitted image of the display. After it has been recalculated, the measured value is available in numerical format for further processing.
  • a freely selectable image section around the display is advantageously recorded and sent to the evaluation unit.
  • the control center can take the first steps to find the cause.
  • the monitoring of tanks or tank systems is provided in a further development.
  • the monitoring of liquid gas tanks is particularly advantageous here, since a multiplicity of tanks can be monitored using the method according to the invention.
  • monitoring of displayed measured variables as well as of processes, such as filling or emptying the tank is possible without the extensive use of control personnel.
  • An exemplary embodiment of the invention will be explained in more detail below with the aid of the drawing.
  • FIG. 1 shows a monitoring system according to the invention in a block diagram.
  • the monitoring system 1 comprises a measuring device 2, a recording device designed as a monitoring camera 3 and an evaluation unit 5, in the exemplary embodiment a personal computer.
  • the surveillance camera 3 and the evaluation unit 5 are connected via a data transmission line, in the exemplary embodiment the Internet 6.
  • the measuring device 2 serves, when storing a liquid gas, such as liquid nitrogen, oxygen, carbon dioxide etc., in a free-standing tank 7, a parameter relevant for storage, such as
  • the measured value determined in the usual way is visualized on a display 8.
  • the display 8 is an analog instrument in which the measured value is displayed on the display 8 by means of a pointer 9, but other, in particular digital, measuring devices can also be used.
  • the display 8 and the surveillance camera 3 are arranged to protect against weather influences within a housing 10 which, at least in the area of the display 8, consists of a transparent material, such as plexiglass. This makes it possible for operating personnel to read the display 8 without opening the housing 10.
  • the focal length of the surveillance camera 3 is selected such that it can record one or more displays 8 arranged side by side, as required. Furthermore, it is equipped with a zoom lens 11, by means of which the focal length of the surveillance camera 3 can be freely selected within a predetermined range. This makes it possible to use the zoom lens 11 of the surveillance camera to select one Detect the area around the display 8 to be monitored and transmit images from this area to the evaluation unit 5. For the same reason, the surveillance camera 3 is pivotably mounted on an axis of rotation 12, which is horizontal in the exemplary embodiment. The zoom lens 11 and the axis of rotation 12 are connected to electric motors - not shown in the picture - by means of which the focal length or the angular position of the surveillance camera 3 can be set by means of corresponding control commands.
  • the surveillance camera 3 takes pictures of the display 8 continuously or at regular intervals and converts the pictures into electronic signals.
  • the surveillance camera 3 is connected via a data line 13 to the input connection 15 of a computer unit 16, in which the image information transmitted by the surveillance camera 3 is processed for transmission to the Internet 6. Additional connections 15 'on the computer unit 16 serve for connection to further surveillance cameras if required.
  • the computer unit 16 further comprises a storage unit 17 in which the image information transmitted by the surveillance camera 3 is temporarily stored. Otherwise, the computer unit 16 is accommodated in a lockable housing 19, which is preferably arranged below the tank 7, which rests on stands not shown in the figure. Since the electronic elements in the computer unit 16 can be temperature sensitive, the housing 19 is provided with a heater, not shown in the picture. As an alternative to this, the computer unit 16 can, however, also be provided in a building spatially distant from the tank 7.
  • the computer unit 16 is connected to the Internet 6 via a connection 18, for example a modem.
  • data from the computer unit 16 can be fed into the Internet 6, or data from the Internet 6 can be transmitted to the computer unit 16.
  • the data transmitted from the Internet 6 to the computer unit 16 are used, for example, to set control parameters of the surveillance camera 3, such as focal length of the lens 11 or control angle on the axis of rotation 12, by means of corresponding control commands.
  • the evaluation unit 5 is connected to the Internet at a freely selectable connection point 20.
  • the evaluation unit 5 essentially comprises a computer 21, for example a personal computer.
  • the transmitted image information can be stored in the computer and displayed on a screen 22.
  • the computer is also equipped with a "pattern recognition software" which allows the calculation of numerical values from the image information according to a predetermined program.
  • a program can consist, for example, in that the current image of the display 8 is subtracted from a stored reference image, for example the scale of the measuring device without a pointer or a zero value. The difference between the two images, which essentially only contains the information about the position of the pointer 9 on the display 8, can be clearly assigned to certain values of the parameter to be measured.
  • the program takes into account corresponding geometry factors.
  • the pointer 9 is marked with a specific color.
  • a corresponding analog color filter is provided on the lens 11 of the surveillance camera 3 and / or a corresponding digital frequency filter is provided in the evaluation software of the evaluation unit 5.
  • the recalculated value of the measurement parameter is displayed on the screen 22 of the computer 21 and is available in numerical format for further processing. It is possible to place it on a website 6 on the Internet 6 that is only accessible with a suitable password for a limited group of people, such as suppliers or customers.
  • the computer 21 is connected to a signal transmitter 23 which, when a certain value of the measured variable is reached, for example when a predetermined value is exceeded Limit value, an optical and / or acoustic signal, such as a warning signal, for the immediate information of an operator.
  • a signal transmitter 23 which, when a certain value of the measured variable is reached, for example when a predetermined value is exceeded Limit value, an optical and / or acoustic signal, such as a warning signal, for the immediate information of an operator.
  • the surveillance system 1 enables worldwide access to the data recorded by the surveillance camera 3.
  • the parameters relevant to the storage of the liquid gas are monitored reliably and in a simple manner.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Dans des dispositifs connus, le contrôle de paramètres physiques ou chimiques, lors du stockage de marchandises, notamment dans des unités spatialement séparées les unes des autres, est réalisé en ce que le paramètre est lu au moyen d'un dispositif de mesure numérique et la valeur mesurée est directement transmise à un centre de commande. Ceci présente l'inconvénient que l'équipement d'unités décentralisées avec une technique de mesure numérique est très coûteux. Selon cette invention, la mesure du paramètre est réalisée au moyen d'appareils de mesure classiques, notamment analogiques, dans lesquels la valeur mesurée est visualisée sur un système d'affichage. Le système d'affichage est détecté au moyen d'une caméra numérique, l'image détectée est numérisée et est transmise, par exemple par Internet, à une unité d'évaluation, dans laquelle la valeur mesurée est reconstituée et affichée, au moyen d'un logiciel de reconnaissance de formes. Cette invention offre une alternative économique, notamment dans des installations composées de rééquipement, à l'équipement complet avec une technique de mesure numérique. En outre, l'utilisation de la caméra permet le contrôle simultané de plusieurs systèmes d'affichages ou d'une zone environnante, située autour du système d'affichage.
PCT/EP2001/001082 2000-02-05 2001-02-01 Systeme de controle et procede permettant de controler a distance des grandeurs de mesure WO2001057477A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001237363A AU2001237363A1 (en) 2000-02-05 2001-02-01 Monitoring system and method for remote monitoring of measured variables

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10005213.4 2000-02-05
DE2000105213 DE10005213A1 (de) 2000-02-05 2000-02-05 Überwachungssystem und Verfahren zum Fernüberwachen von Messgrößen

Publications (2)

Publication Number Publication Date
WO2001057477A1 true WO2001057477A1 (fr) 2001-08-09
WO2001057477A8 WO2001057477A8 (fr) 2001-11-22

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Country Status (3)

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AU (1) AU2001237363A1 (fr)
DE (1) DE10005213A1 (fr)
WO (1) WO2001057477A1 (fr)

Cited By (10)

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Publication number Priority date Publication date Assignee Title
EP1241455A1 (fr) * 2001-03-13 2002-09-18 Tamtron OY Procédé et système de mesure
GB2371664B (en) * 2000-10-07 2004-10-13 Lattice Intellectual Property Utility meter index plate data reading
EP1947805A1 (fr) * 2007-01-16 2008-07-23 VEGA Grieshaber KG Surveillance et commande automatique de niveau de remplissage
EP2045587A3 (fr) * 2007-10-05 2009-05-06 Tamtron OY Procédé et système de vérification d'un dispositif de mesure
AT509742A1 (de) * 2010-04-23 2011-11-15 Oberth Georg Ing Datenerfassungssystem zur erfassung von energie- und wasserverbrauchsdaten mit warnmitteln
CN103542873A (zh) * 2013-10-01 2014-01-29 刘文化 采集障碍空间情景(画面)信息的装置
US8966044B2 (en) 2001-01-26 2015-02-24 Schneider Electric It Corporation Methods for displaying physical network topology and environmental status by location, organization, or responsible party
US8990536B2 (en) 2011-06-01 2015-03-24 Schneider Electric It Corporation Systems and methods for journaling and executing device control instructions
US9952103B2 (en) 2011-12-22 2018-04-24 Schneider Electric It Corporation Analysis of effect of transient events on temperature in a data center
US11076507B2 (en) 2007-05-15 2021-07-27 Schneider Electric It Corporation Methods and systems for managing facility power and cooling

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DE10140792A1 (de) * 2001-08-20 2003-03-13 Roland Beisert Vorrichtung zum selbsttätigen Erfassen des Zählerstandes eines Verbrauchszählers
DE10141521C1 (de) * 2001-08-24 2003-01-09 Siemens Ag Darstellung von Anwenderinformationen
DE10209328A1 (de) * 2002-02-27 2003-09-04 T O P Gmbh & Co Kg System zur Überwachung oder/und Optimierung der Funktion technischer Anlagen
DE102010015829A1 (de) * 2010-01-20 2011-07-21 WiriTec GmbH, 64625 Verfahren zur Zählerdatenerfassung und zur Verarbeitung der erfassten Zählerdaten
DE102010014252A1 (de) 2010-04-08 2011-10-13 Martin Meyer Vorrichtung zur Zählerstanderfassung
DE102010014253A1 (de) 2010-04-08 2011-10-13 Martin Meyer Vorrichtung mit einer Bilderfassungseinrichtung zur Zählerstandserfassung
EP2629076A1 (fr) 2012-02-17 2013-08-21 Rüdiger Stelljes Dispositif et procédé destinés à la détection d'un dégât des eaux
DE102013012183A1 (de) * 2013-04-05 2014-10-09 Fmb Blickle Gmbh Fluidtechnische Einrichtung mit verbesserter Erkennbarkeit von Prozessparametern
DE102014002528B4 (de) * 2014-02-24 2021-03-18 Stark Spannsysteme Gmbh Anzeigeeinrichtung zur optischen Anzeige eines Spannzustands einer Spannvorrichtung und Spannsystem
JP6404649B2 (ja) 2014-09-09 2018-10-10 ファナック株式会社 コンピュータ制御機器のリモート診断装置
DE102018133618A1 (de) 2018-12-27 2020-07-02 SIKA Dr. Siebert & Kühn GmbH & Co. KG Kalibrieraufbau zum Kalibrieren eines Temperaturmessfühlers und Verfahren hierzu
DE102019134580A1 (de) * 2019-12-16 2021-06-17 Samson Aktiengesellschaft System zur optischen Kommunikation in einer prozesstechnischen Anlage und prozesstechnische Anlage
DE102020210595A1 (de) 2020-08-20 2022-02-24 Carl Zeiss Microscopy Gmbh System und Verfahren zur Überwachung von Zuständen von Komponenten eines Mikroskops

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2371664B (en) * 2000-10-07 2004-10-13 Lattice Intellectual Property Utility meter index plate data reading
US8966044B2 (en) 2001-01-26 2015-02-24 Schneider Electric It Corporation Methods for displaying physical network topology and environmental status by location, organization, or responsible party
EP1241455A1 (fr) * 2001-03-13 2002-09-18 Tamtron OY Procédé et système de mesure
EP1947805A1 (fr) * 2007-01-16 2008-07-23 VEGA Grieshaber KG Surveillance et commande automatique de niveau de remplissage
US11503744B2 (en) 2007-05-15 2022-11-15 Schneider Electric It Corporation Methods and systems for managing facility power and cooling
US11076507B2 (en) 2007-05-15 2021-07-27 Schneider Electric It Corporation Methods and systems for managing facility power and cooling
EP2208032A4 (fr) * 2007-10-05 2011-03-02 Tamtron Oy Procédé et système pour la vérification d'un dispositif de mesure d'un moyen de déplacement de matière
EP2208032A1 (fr) * 2007-10-05 2010-07-21 Tamtron OY Procédé et système pour la vérification d'un dispositif de mesure d'un moyen de déplacement de matière
WO2009043976A3 (fr) * 2007-10-05 2009-05-28 Tamtron Oy Procédé et système de vérification d'un dispositif de mesure
EP2045587A3 (fr) * 2007-10-05 2009-05-06 Tamtron OY Procédé et système de vérification d'un dispositif de mesure
AT509742A1 (de) * 2010-04-23 2011-11-15 Oberth Georg Ing Datenerfassungssystem zur erfassung von energie- und wasserverbrauchsdaten mit warnmitteln
AT13031U1 (de) * 2010-04-23 2013-04-15 Oberth Georg Ing Datenerfassungssystem zur Erfassung von Energie- und Wasserverbrauchsdaten mit Warnmitteln
US8990536B2 (en) 2011-06-01 2015-03-24 Schneider Electric It Corporation Systems and methods for journaling and executing device control instructions
US9952103B2 (en) 2011-12-22 2018-04-24 Schneider Electric It Corporation Analysis of effect of transient events on temperature in a data center
CN103542873A (zh) * 2013-10-01 2014-01-29 刘文化 采集障碍空间情景(画面)信息的装置

Also Published As

Publication number Publication date
WO2001057477A8 (fr) 2001-11-22
DE10005213A1 (de) 2001-08-16
AU2001237363A1 (en) 2001-08-14

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