DE2708074A1 - ELECTRONIC ROTARY CONTROL RECEIVER - Google Patents

ELECTRONIC ROTARY CONTROL RECEIVER

Info

Publication number
DE2708074A1
DE2708074A1 DE19772708074 DE2708074A DE2708074A1 DE 2708074 A1 DE2708074 A1 DE 2708074A1 DE 19772708074 DE19772708074 DE 19772708074 DE 2708074 A DE2708074 A DE 2708074A DE 2708074 A1 DE2708074 A1 DE 2708074A1
Authority
DE
Germany
Prior art keywords
ripple control
control receiver
electronic
programming
supply networks
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
DE19772708074
Other languages
German (de)
Other versions
DE2708074C2 (en
Inventor
Artur Dr Ing Seibt
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.)
Heliowatt Werke Elektrizitaet GmbH
Original Assignee
Heliowatt Werke Elektrizitaet 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 Heliowatt Werke Elektrizitaet GmbH filed Critical Heliowatt Werke Elektrizitaet GmbH
Priority to DE2708074A priority Critical patent/DE2708074C2/en
Priority to AT0089978A priority patent/AT367931B/en
Priority to CH168378A priority patent/CH627884A5/en
Priority to GB6717/78A priority patent/GB1552586A/en
Priority to FR7804791A priority patent/FR2381407A1/en
Publication of DE2708074A1 publication Critical patent/DE2708074A1/en
Application granted granted Critical
Publication of DE2708074C2 publication Critical patent/DE2708074C2/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H02J13/00009Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optical Communication System (AREA)
  • Read Only Memory (AREA)
  • Circuits Of Receivers In General (AREA)
  • Selective Calling Equipment (AREA)

Description

HELIOWAH WERKE 1000 Berlin 12, den 9. 2. 1977HELIOWAH WERKE 1000 Berlin 12, February 9, 1977 Elektrizitöts-Gesel!schaft mbH Wilmersdorfar Straße 39Elektrizitöts-Gesellschaft mbH Wilmersdorfar Strasse 39

E 43 Go/We -3* 0577.10E 43 Go / We -3 * 0577.10

Elektronischer Runds*Electronic round * Die Erfindung bezieht sich auf einen elektronischen Rundsteuerempfanger fürThe invention relates to an electronic ripple control receiver for Energieversorgungsnetze .Energy supply networks.

Elektronische Rundsteuerempfänger sind bekannt. Sie sind in herömmicher Digitaltechnik in Verbindung mit Schaltern oder Steckvorrichtungen zum Programmieren der Befehle ausgeführt. Das Ausfiltem der Rundsteuerimpulse aus der Netzspannung wird durch Methoden der analogen Filter tenic, z.B. auch unter Verwendung sogenannter aktiver Filter, vorgenommen, wobei als Ausgangsglteder bipolare Relais vorgesehen sind.Electronic ripple control receivers are known. You are in traditional digital technology in connection with switches or plug devices for programming of commands executed. The ripple control pulses are filtered out of the mains voltage using methods of the analog filter tenic, e.g. also using so-called active filters, with the output elements bipolar relays are provided.

Der Erfindung liegt die Aufgabe zugrunde, einen elektronischen Rundsteuerempfänger zu schaffen, der durch Verringerung des Bauelementeaufwandes wirtschaftlicher herstellbar ist.The invention is based on the object of creating an electronic ripple control receiver which is more economical by reducing the number of components can be produced.

Diese Aufgabe ist durch die Erfindung geläst, wie sie in denThis task is slacked by the invention, as it is in the Teilen der Patentansprüche dargestellt ist und nachfolgend naher erläutert wird.Parts of the claims is shown and will be explained in more detail below.

Der elektronische Rundsteuerempfänger weist einen Computer, Einchip-Mikrocomputer auf, der zum Decodieren der Rundstauerbefehle wird. Er Übernimmt zusätzlich das Ausfiltem der Rundsteuerimpulse, wobei Methoden der digitalen Filtertechnik benutzt werden. Durch den Wegfall des größten Teils der Bauelemente, die bei den bisher üblichen analogen Memode fur das Ausfiltem der Impulse notwendig waren, wird eine beträchtliche Koste» ersparnis erzielt.The electronic ripple control receiver has a computer, One-chip microcomputer used to decode the traffic jam commands will. It also takes over the filtering out of the ripple control pulses, whereby Methods of digital filter technology are used. By eliminating the majority of the components that were used in the previous analog Memode were necessary for filtering out the impulses, there is a considerable cost » savings achieved.

Bei elektronischen Rundsteuerempfängem ist es üblich, die eingehenden Signale auf ihre Richtigkeit zu prüfen, d.h. es werden z.B. die Breite und Absende der Impulse auf vorgegebene Sollwerte Überprüft werden unzulässige Abweichungen erkannt, erfolgt keine Auslosung. Der Computer inIn the case of electronic ripple control receivers, it is common to use the incoming signals to check their accuracy, i.e. e.g. the width and address of the impulses to the specified target values. Inadmissible deviations are checked recognized, there will be no draw. The computer in

809834/0477809834/0477

empfänger gemäß der Erfindung kann Über die bekannten PrUfvorgänge hinaus aufgrund des ihm eingegebenen Programms weitere Prüfungen durchfuhren, die die Sicherheit gegen fehlende oder falsche Auslösungen erheblich verbessern.Receiver according to the invention can be used in addition to the known test procedures carry out further tests based on the program entered, which considerably improve the security against missing or incorrect tripping.

Außerdem ist die Programmierung des elektronischen Rundsteuerempfängers in einem elektronischen Speicher enthalten, vorzugsweise in einem nichtflUchtigen Halbleiterspeicher. Dieser Speicher ist als elektrisch programmierbarer Festwertspeicher (PROM) oder als elektrisch programmierbarer und löschbarer Festwertspeicher (UV-PROM) oder vorzugsweise als elektrisch schreib- und lesbarer Speicher (MNOS) ausgeführt und auf dem Mikrocomputerschaltkreis integriert.In addition, the programming of the electronic ripple control receiver is in an electronic memory, preferably in a non-volatile semiconductor memory. This memory is an electrically programmable read-only memory (PROM) or as electrically programmable and erasable read-only memory (UV-PROM) or preferably as electrically writable and readable Memory (MNOS) executed and integrated on the microcomputer circuit.

Da bei einem einmal eingebauten Rundsteuerempfänger die Programmierung in der Regel nicht mehr verändert wird, genügt die Angabe der Programmierung auf dem Typenschild. In Fällen, in denen die Programmierung häufiger zu ändern ist# kann eine vom Computer unmittelbar gesteuerte Anzeige eingesetzt werden.Since the programming is usually no longer changed when a ripple control receiver has been installed, it is sufficient to specify the programming on the nameplate. In cases where the programming has to be changed frequently # a display directly controlled by the computer can be used.

Die Programmierung des elektronischen Rundsteuerempfängers erfolgt entweder durch einen elektrischen Anschluß an den Rundsteuerempfänger oder über eine optische Datenstrecke. Im letzteren Falle ist die Programmierung ohne Offnen des Rundsteuerempfängers durch das Sichtfenster hindurch auslesbar, veränderbar und nach einer Änderung auf Richtigkeit überprüfbar. Die Datenstrecke arbeitet zu diesem Zweck vorteilhaft in beiden Richtungen, indem der Rundsteuerempfänger mindestens ein lichtempfindliches Element enthält, das Lichtimpulse eines außen aufzusetzenden Lichtsenders empfangt.The programming of the electronic ripple control receiver takes place either by means of an electrical connection to the ripple control receiver or via an optical data link. In the latter case, the programming is without opening of the ripple control receiver can be read through the viewing window, changed and checked for correctness after a change. The data link is working for this purpose advantageously in both directions, in that the ripple control receiver contains at least one light-sensitive element, the light pulses a light transmitter to be placed on the outside is received.

Zur Signalausgabe enthält der Rundsteuerempfänger ein lichtemittierendes Element, dem ein entsprechender Lichtempfänger außen gegenUberzusetzen ist. Als Lichtsender ist z.B. eine evtl. vorhandene Anzeige benutzbar. Zweckmäßig werden Lichtsender und -empfänger im Rundsteuerempfänger so angeordnet, daß in einem außen anzusetzenden Gegenstück die korrespondierenden Bauelemente deckungsgleich montiert sind. Die Prrmierung wird durch ein fest installiertes oder auch ein tragbie Gerät vorgenommen.The ripple control receiver contains a light-emitting element for signal output, to which a corresponding light receiver is to be placed outside. A possibly existing display can be used as a light transmitter, for example. Light transmitters and receivers are expediently arranged in the ripple control receiver in such a way that that in a counterpart to be attached to the outside the corresponding components are mounted congruently. The award is fixed by a installed or a portable device.

Zur Sicherung gegen unbefugte Manipulation des Programms enthält der Computer in seinem Speicher Codeworte und ist so pramiert, daß erst nach Empfang der Codeworte eine Änderung der Prraierung ermöglicht wird.To protect against unauthorized manipulation of the program, the computer contains codewords in its memory and is pramated in such a way that it is only possible to change the pramation after the codewords have been received.

809834/0477 -3-809834/0477 -3-

Claims (5)

Patentansprüche:Patent claims: I))Elektronischer Rundsteuerempfänger für Energieversorgungsnetze, dadurch '■^^—^ gekennzeichnet, daß zum Decodieren der Rundsteuerbefehle ein Mikrocomputer, vorzugsweise ein Einchip- Mikrocomputer, eingesetzt ist, der außerdem das Ausfiltern der Rundsteuerimpulse mit an sich bekannten Methoden der digitalen Filtertechnik durchfuhrt und daß die Programmierung des Rundsteuerempfängers in einem elektronischen, vorzugsweise auf dem Mikrocomputer integrierten nichtflüchtigen Speicher enthalten ist, wobei dieser als ein elektrisch schreib- und loschbarer Halbleiterspeicher (UV-PROM) oder ein elektrisch schreib- und lesbarer Halbleiterspeicher (MNOS) ausgeführt ist.I)) Electronic ripple control receiver for power supply networks, thereby '■ ^^ - ^ that a microcomputer is used to decode the ripple control commands preferably a one-chip microcomputer, is used, which also filtering out the ripple control pulses using methods known per se the digital filter technology and that the programming of the ripple control receiver in an electronic, preferably on the microcomputer integrated non-volatile memory is included, this being an electrically writable and erasable semiconductor memory (UV-PROM) or an electrically writable and readable semiconductor memory (MNOS) is implemented. 2) Elektronischer Rundsteuerempfänger für Energieversorgungsnetze, nach Anspruch 1, dadurch gekennzeichnet, daß die Eingabe des Programms in den elektrischen Programmspeicher Über einen elektrischen Anschluß an den Rundsteuerempfänger erfolgt und der Computer so programmiert ist, daß die eingegebene Programmierung des Rundsteuerempfängers zur Kontrolle wieder ausgelesen und angezeigt bzw. automatisch vergleichbar ist.2) Electronic ripple control receiver for energy supply networks, according to Claim 1, characterized in that the input of the program into the electrical program memory via an electrical connection to the Ripple control receiver takes place and the computer is programmed so that the input programming of the ripple control receiver is read out again for control purposes and displayed or can be automatically compared. 3) Elektronischer Rundsteuerempfänger für Energieversorgungsnetze, nach Anspruch 1 und Anspruch 2, dadurch gekennzeichnet, daß zur Eingabe der Programmierung des Rundsteuerempfängers eine optische Datenstrecke vorgesehen ist die in zwei Richtungen Daten vorzugsweise in 1 Bit-serieller Form empfängt und ausgibt, und daß der Rundsteuerempfänger zu diesem Zweck mindestens ein lichtempfindliches und mindestens ein lichtsendendes Bauelement enthält.3) Electronic ripple control receiver for energy supply networks, according to Claim 1 and Claim 2, characterized in that an optical data path is provided for inputting the programming of the ripple control receiver is that receives and outputs data in two directions, preferably in 1-bit serial form, and that the ripple control receiver to this Purpose contains at least one light-sensitive and at least one light-emitting component. 4) Elektronischer Rundsteuerempfänger für Energieversorgungsnetze, nach Anspruch 1 bis Anspruch 3, dadurch gekennzeichnet, daß die Eingabe, Änderung und Kontrolle der Programmierung des Rundsteuerempfängers über die optische Datenstrecke so erfolgt, daß außen auf das Gehäuse des Rundsteuerempfängers eine Vorrichtung aufgesetzt wird, die lichtempfindliche und lichtsendende Bauelemente enthält, die mit den entsprechenden Bauelementen des Rundsteuerempfängers korrespondieren.4) Electronic ripple control receiver for energy supply networks, according to Claim 1 to Claim 3, characterized in that the input, change and control of the programming of the ripple control receiver is carried out via the optical data path takes place in such a way that the outside of the housing of the ripple control receiver a device is put on, the photosensitive and contains light-emitting components that correspond to the corresponding components of the ripple control receiver correspond. 809834/0477 "4"809834/0477 " 4 " ORIGINAL INSPECTEDORIGINAL INSPECTED 27U8U7427U8U74 5) Elektronischer Rundsteuerempfänger für Energieversorgungsnetze/ nach Anspruch 1 bis Anspruch 4, dadurch gekennzeichnet, daß die Programmierung des Rundsteuerempfängers auf einer elektronischen Anzeigeeinrichtung angezeigt wird.5) Electronic ripple control receiver for power supply networks / according to claim 1 to claim 4, characterized in that the programming of the ripple control receiver is displayed on an electronic display device. 30983098
DE2708074A 1977-02-22 1977-02-22 Electronic ripple control receiver Expired DE2708074C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2708074A DE2708074C2 (en) 1977-02-22 1977-02-22 Electronic ripple control receiver
AT0089978A AT367931B (en) 1977-02-22 1978-02-09 ELECTRONIC RADIO CONTROL RECEIVER
CH168378A CH627884A5 (en) 1977-02-22 1978-02-16 Integrated, electronic ripple-control receiver for power supply networks
GB6717/78A GB1552586A (en) 1977-02-22 1978-02-20 Electronic centralised-control receiver
FR7804791A FR2381407A1 (en) 1977-02-22 1978-02-20 ELECTRONIC RECEIVER FOR CENTRALIZED REMOTE CONTROL SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2708074A DE2708074C2 (en) 1977-02-22 1977-02-22 Electronic ripple control receiver

Publications (2)

Publication Number Publication Date
DE2708074A1 true DE2708074A1 (en) 1978-08-24
DE2708074C2 DE2708074C2 (en) 1983-02-03

Family

ID=6002090

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2708074A Expired DE2708074C2 (en) 1977-02-22 1977-02-22 Electronic ripple control receiver

Country Status (5)

Country Link
AT (1) AT367931B (en)
CH (1) CH627884A5 (en)
DE (1) DE2708074C2 (en)
FR (1) FR2381407A1 (en)
GB (1) GB1552586A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825449A1 (en) * 1978-05-29 1979-12-06 Landis & Gyr Ag STATIC RADIO RECEIVER
DE3201532A1 (en) * 1982-01-20 1983-07-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Teleaction receiver with a microcomputer
EP0105087A2 (en) * 1982-10-01 1984-04-11 Zellweger Uster Ag Digital filter for a remote control receiver
EP0108244A1 (en) 1982-10-15 1984-05-16 Asea Brown Boveri Aktiengesellschaft Ripple control receiver
AT396724B (en) * 1984-11-22 1993-11-25 Zellweger Uster Ag METHOD AND DEVICE FOR DEMODULATING HIGH FREQUENCY MODULATED SIGNALS BY MEANS OF DIGITAL FILTERS AND DIGITAL DEMODULATORS, AND USE OF THE METHOD IN A REMOTE CONTROL RECEIVER

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU44365B (en) * 1981-10-17 1990-06-30 Licentia Gmbh Receiver of a main net-tone mtk command
JPS60104267A (en) * 1983-11-11 1985-06-08 Toshiba Corp Electric energy measuring device
AT380978B (en) * 1984-04-27 1986-08-11 Uher Ag DEVICE FOR EVALUATING RECEIVER SIGNALS IN TONE FREQUENCY RADIO CONTROLLER (TRE)
DE3528046A1 (en) * 1985-08-05 1987-02-05 Bbc Brown Boveri & Cie RADIO CONTROL RECEIVER
FR2600466B1 (en) * 1986-06-20 1994-03-18 Cahors Manuf Appareillage Electr POWER ADAPTER FOR ELECTRICAL INSTALLATIONS, ESPECIALLY DOMESTIC, WITH DRIVE CONTROL BY CARRIER CURRENTS
DE3813656A1 (en) * 1988-04-19 1989-11-09 Heliowatt Werke Arrangement for an electricity meter with audio-frequency ripple control receiver integrated in the meter housing
EP0396682B1 (en) * 1988-10-22 1993-11-10 Jan Gerrit TÖNNIES A process for varying the load on a power supply system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2144400A5 (en) * 1972-06-30 1973-02-09 Schlumberger Compteurs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CH-Z.: Bulletin ASE/UCS, 67(1976)10, 15. Mai, S.502 bis 506 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825449A1 (en) * 1978-05-29 1979-12-06 Landis & Gyr Ag STATIC RADIO RECEIVER
DE3201532A1 (en) * 1982-01-20 1983-07-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Teleaction receiver with a microcomputer
EP0105087A2 (en) * 1982-10-01 1984-04-11 Zellweger Uster Ag Digital filter for a remote control receiver
EP0105087A3 (en) * 1982-10-01 1985-08-21 Zellweger Uster Ag Digital filter for a remote control receiver
US4653016A (en) * 1982-10-01 1987-03-24 Zellweger Uster, Ltd. Digital filters for remote control receivers
EP0108244A1 (en) 1982-10-15 1984-05-16 Asea Brown Boveri Aktiengesellschaft Ripple control receiver
AT396724B (en) * 1984-11-22 1993-11-25 Zellweger Uster Ag METHOD AND DEVICE FOR DEMODULATING HIGH FREQUENCY MODULATED SIGNALS BY MEANS OF DIGITAL FILTERS AND DIGITAL DEMODULATORS, AND USE OF THE METHOD IN A REMOTE CONTROL RECEIVER

Also Published As

Publication number Publication date
DE2708074C2 (en) 1983-02-03
FR2381407B1 (en) 1984-06-01
GB1552586A (en) 1979-09-12
CH627884A5 (en) 1982-01-29
AT367931B (en) 1982-08-10
ATA89978A (en) 1979-12-15
FR2381407A1 (en) 1978-09-15

Similar Documents

Publication Publication Date Title
DE2708074A1 (en) ELECTRONIC ROTARY CONTROL RECEIVER
DE2622395C2 (en) Remotely readable magnetic compass
DE2816302A1 (en) DISPLAY DEVICE WITH LIMIT VALUE MESSAGE
EP0274767A1 (en) Method and circuit for determining the pick-off position of a remotely controlled resistance transmitter
DE1597725A1 (en) Electronic flash unit
DE2703880A1 (en) ELECTRIC TEST DEVICE WITH ACOUSTIC, QUANTITATIVE AND QUALITATIVE ANALOGUE DISPLAY
DE4122371C2 (en) Microprocessor controlled electronic measuring device
DE3227404A1 (en) METHOD AND DEVICES FOR TRANSMITTING INFORMATION
DE2557458B2 (en) EXPOSURE METER FOR CAMERAS
DE19603942A1 (en) Data acquisition device for automatic independent acquisition and storage of electrical parameters
CH629599A5 (en) Electricity meter with a special counting mechanism
DE1473907A1 (en) Device for the formation of a numerical value proportional to the mean value using digital means from two opposite edge coordinates of an image of the sun captured in a camera
DE3243542A1 (en) Method and measuring instrument for measuring and processing characteristic quantities of the environmental atmosphere, particularly of concentrations of various gases in the below-ground air current
DE3410003A1 (en) Demand tariff indicator
DE102015211457A1 (en) Electronic control device with wireless near-field communication and method for programming an electronic operating device by means of wireless near-field communication
DE2317743C2 (en) Procedure for commissioning or decommissioning a single-pole voltage finder for alternating high voltage
DE3143136A1 (en) Devices for data entry in communication system components
DE2541003B2 (en) Solid state circuit
DE2462512C2 (en) Electronic lock
DE2418907C2 (en) Circuit arrangement for a closable direct current circuit containing an inductance and a series resistor
DE1521957B1 (en) Device for uninterrupted, operator-free monitoring of the quality of the cathodic protection of systems
DE19937821A1 (en) Electronic multimeter has an extra multi-channel module that connects to the meter via an interface and has multiple connectors to allow point or group type sequential measurements of multiple measurement points
CH637771A5 (en) Additional device with tariff device, located in connection with an electricity meter, for forming counting values for charging for the power consumption
DE2748327C2 (en) Photomicrograph
DE901210C (en) Multivibrator circuit for generating a square wave voltage with a short rise time

Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation