EP0627716B1 - Apparatus for central acquisition of energy consumption costs - Google Patents
Apparatus for central acquisition of energy consumption costs Download PDFInfo
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- EP0627716B1 EP0627716B1 EP19940106017 EP94106017A EP0627716B1 EP 0627716 B1 EP0627716 B1 EP 0627716B1 EP 19940106017 EP19940106017 EP 19940106017 EP 94106017 A EP94106017 A EP 94106017A EP 0627716 B1 EP0627716 B1 EP 0627716B1
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- European Patent Office
- Prior art keywords
- consumption
- circuit
- band
- receiver
- accordance
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
Definitions
- the invention relates to a system for the central recording of energy consumption costs, such as heating and hot water costs in living and / or business premises, the individual consumption points by transmitting coded signals, the respective measuring point, the respective accumulated consumption value and possibly other characteristic data to a central Report to the receiving point at which the transmitted data from the individual measuring points is recorded centrally and, if necessary, used for billing, wherein an electronic consumption distribution device is assigned to each measuring point, which elaborates, sums up and electronically stores a relative or absolute consumption value at the measuring point in question, and the electronic consumption distribution device is assigned an electronic parallel series converter which converts the electronically recorded and coded consumption value into a sequential pulse sequence, wherein the consumption distribution device is also assigned an emitter emitting electromagnetic waves, which is switched by the parallel-series converter in the rhythm of the sequential pulse sequence delivered by the latter, and wherein the electronic transmission circuit has a surface acoustic wave element as a frequency resonator, and the central receiving point is assigned an electromagnetic wave selecting and receiving receiver, which transmits the transmitted electromagnetic sequential pulse signals to
- the purpose of the invention is an arrangement of the aforementioned Kind in such a way that their reliability continues is improved.
- WO 93 / o4457 is a flow meter known with impeller, microprocessor, timer, display and a lithium cell.
- the impeller is with a sensor equipped, e.g. a permanent magnet that everyone Rotation of the impeller connected to a reed contact.
- the switching intervals e.g. from 1o to 2o seconds are passed on to the microprocessor, where they be saved and shown on the display.
- a transmitter is assigned to the microprocessor, through which the amount and address, e.g. once a week, to one parent recipients are forwarded.
- a data processor is assigned to the receiver is connected to another transmitter. This other broadcaster is connected to a central computer, the one Central office is assigned.
- SAW surface waves
- oscillators vibrate at their fundamental wave frequency approximately in the range between 2oo MHz and 1 GHz. They are often called narrow-band, frequency-determining Elements used in the feedback branch of amplifiers and show very good noise characteristics.
- a uniform transmission frequency is used for the consumption distribution devices, so heating costs or Hot water cost allocator for the systems after the Invention. Via this transmission frequency, all data that is required for Labeling for the relevant distribution board from Are interested in a subordinate central office on the Transmit radio paths. From the circuit arrangement of a each UHF transmitter of a consumption distribution device preferably a carrier wave in the range of the predetermined Frequency broadcast, which is in the rhythm of the sequence of the Signal codes of the data to be transmitted is frequency modulated.
- the invention achieves the object by that the receiver is a receiver circuit with broadband Input contains a narrow-band scanner circuit is connected upstream, the input bandwidth the receiver circuit the spread of the by the surface wave elements certain transmission frequencies of the Consumption distribution devices, and wherein the through the scanner circuit trimmed frequency range in scans this broadband area Df back and forth.
- the scanner circuit (3) is a UHF broadband amplifier (2) is assigned.
- the UHF broadband amplifier (2) a has non-linear amplifier characteristic, which preferably is approximately square.
- the invention has advantages; these exist e.g. in that the effective width of the scanner frequency range covered at any moment by narrowband essentially always remains constant.
- the broadband amplifier 2 serves to raise the signal level, the signals incident on the antenna 1 from the transmitting antennas 11 of the consumption distribution devices 1o.
- the broadband amplifier 2 preferably has a nonlinear, in particular quadratic, characteristic curve in order to favor the incoming signals of the consumption distribution device 10 over the general interference level.
- the scanner 3 causes a continuous narrow band (df) scanning the pass band (Df) of the broadband amplifier 2 and thereby achieves an interference reduction of the Broadband range of the amplifier 2.
- the scanner 3 will advantageously controlled by a microprocessor 5, which is the 1, which the receiver circuit 6th together with the calculator 7 to 9, is common.
- the receiver circuit 6 includes the broadband amplifier as well 2 a broadband (Df) input circuit, which has a damping characteristic according to Figure 2 and the a super heterodyne circuit for frequency demodulation is subordinate.
- Df broadband
- the evaluation circuit 7 downstream of the receiver circuit 6 deals with the storage, control and evaluation of the from the consumption distribution devices 1o via their Antennas 11 transmit measured value telegrams on the radio path.
- All of the individual consumption distribution devices 1o 1 via their antennas 11 broadcast or UHF signals transmitted are received by the receiving antenna 1 detected and corrected by the scanner 3, the receiver circuit 6 forwarded.
- the course of the input attenuation is shown schematically in FIG the broadband amplifier 2 and the receiver circuit 6 shown within the frequency range Df.
- This Frequency range Df gives the range of the frequency band of the oscillators controlled by SAW components UHF transmitter (1o) again.
- the scanner 3 provides a narrow band, the frequency range df comprehensive input of the particular as Superheterodyne trained receiving circuit that with controlled variable tuning, such that the cut frequency range df in the broadband range Df scans back and forth.
- This scattering range Df of the SAW resonators of the transmitter circuits is mainly used for heat cost and hot water cost allocators significant because of the possible high levels that occur here Temperature fluctuations.
- the SAW resonators are inherently quite constant in frequency, in those occurring in the aforementioned applications however, high possible temperature differences are certain Frequency fluctuations of those equipped with SAW resonators UHF transmitter circuits cannot be completely avoided.
- This comparatively broadband passband (Df) is now continuously scanned for signal incidence by the appropriately dimensioned and designed scanner 3 in narrowband (df). This ensures that continuous and interference-reducing, narrow-band monitoring takes place within the pass band (Df) of the inputs of the amplifier 2 and the receiver circuit 6, which corresponds approximately to the scattering range of the SAW resonators of the UHF transmitter circuits (1o).
- Scanner 3 and receiver circuit 6 are always absolutely common in function.
- the width of the pass band (Df) of the inputs of the broadband amplifier (2) or the receiver circuit (6) is determined by the amount the maximum possible frequency deviation of the SAW resonator (10) determined by the setpoint.
Description
Die Erfindung betrifft eine Anlage zur zentralen Erfassung von
Energieverbrauchskosten, so Heizungs- und Warmwasserkosten
in Wohn- und/oder Geschäftsräumen, wobei die einzelnen
Verbrauchsstellen durch Übermittlung von codierten Signalen
die jeweilige Meßstelle, den jeweils aufgelaufenen Verbrauchswert
und ggf. weitere kennzeichnenden Daten an eine zentrale
Empfangsstelle melden, bei welcher die übermittelten Daten
der einzelnen Meßstellen zentral erfaßt und ggf. der
Abrechnung zugeführt werden,
wobei einer jeden Meßstelle eine elektronische Verbrauchsverteilereinrichtung
zugeordnet ist, die einen relativen
oder absoluten Verbrauchswert an der betreffenden Meßstelle
erarbeitet, aufsummiert und elektronisch speichert,
und der elektronischen Verbrauchsverteilereinrichtung ein
elektronischer Parallel-Serienwandler zugeordnet ist, welcher
den elektronisch festgehaltenen und codierten Verbrauchswert
in eine sequentielle Impulsfolge umwandelt,
wobei der Verbrauchsverteilereinrichtung außerdem ein elektromagnetische
Wellen abstrahlender Sender zugeordnet ist,
der von dem Parallel-Serienwandler im Rhythmus der von
letzterem verabfolgten sequentiellen Impulsfolge geschaltet
wird, und wobei die elektronische Sendeschaltung ein
akustisches Oberflächenwellenelement als Frequenz-Resonator
aufweist,
und der zentralen Empfangsstelle ein elektromagnetische
Wellen selektierender und aufnehmender Empfänger zugeordnet
ist, der die übermittelten elektromagnetischen sequentiellen
Impulssignale in die zentrale Empfangsstelle überträgt. The invention relates to a system for the central recording of energy consumption costs, such as heating and hot water costs in living and / or business premises, the individual consumption points by transmitting coded signals, the respective measuring point, the respective accumulated consumption value and possibly other characteristic data to a central Report to the receiving point at which the transmitted data from the individual measuring points is recorded centrally and, if necessary, used for billing,
wherein an electronic consumption distribution device is assigned to each measuring point, which elaborates, sums up and electronically stores a relative or absolute consumption value at the measuring point in question,
and the electronic consumption distribution device is assigned an electronic parallel series converter which converts the electronically recorded and coded consumption value into a sequential pulse sequence,
wherein the consumption distribution device is also assigned an emitter emitting electromagnetic waves,
which is switched by the parallel-series converter in the rhythm of the sequential pulse sequence delivered by the latter, and wherein the electronic transmission circuit has a surface acoustic wave element as a frequency resonator,
and the central receiving point is assigned an electromagnetic wave selecting and receiving receiver, which transmits the transmitted electromagnetic sequential pulse signals to the central receiving point.
Zweck der Erfindung ist es, eine Anordnung der vorgenannten Art derart weiterzubilden, daß deren Zuverlässigkeit weiter verbessert wird.The purpose of the invention is an arrangement of the aforementioned Kind in such a way that their reliability continues is improved.
Durch die Druckschrift WO 93/o4457 ist ein Durchflußmengenmesser bekannt mit Flügelrad, Mikroprozessor, Timer, Display und eine Lithiumzelle. Das Flügelrad ist mit einem Sensor ausgestattet, z.B. einem Permament-Magnet, der bei jeder Drehung des Flügelrades einen Reed-Kontakt beschaltet. Die Schalt-Intervalle, die z.B. von 1o bis 2o Sekunden betragen, werden an den Mikroprozessor weitergegeben, wo sie gespeichert werden und auf dem Display zur Anzeige gelangen.Through the publication WO 93 / o4457 is a flow meter known with impeller, microprocessor, timer, display and a lithium cell. The impeller is with a sensor equipped, e.g. a permanent magnet that everyone Rotation of the impeller connected to a reed contact. The switching intervals, e.g. from 1o to 2o seconds are passed on to the microprocessor, where they be saved and shown on the display.
Dem Mikroprozessor ist ein Sender zugeordnet, durch welchen der Betrag und die Adresse, z.B. einmal wöchentlich, zu einem übergeordneten Empfänger weitergeleitet werden.A transmitter is assigned to the microprocessor, through which the amount and address, e.g. once a week, to one parent recipients are forwarded.
Dem Empfänger ist ein Datenprozessor zugeordnet, der mit einem weiterem Sender verbunden ist. Dieser weitere Sender steht mit einem Zentralcomputer in Verbindung, der einer Zentralstelle zugeordnet ist.A data processor is assigned to the receiver is connected to another transmitter. This other broadcaster is connected to a central computer, the one Central office is assigned.
Bei den Schaltungsanordnungen für die UHF-Sender-Schaltungen zur Anwendung bei den einleitend zitierten Anlagen, werden vorteilhaft sogenannte OFW-Bauelemente (OFW = Oberflächenwellen) als Resonatoren für die Oszillatoren verwendet. Diese Bauelemente zeichnen sich durch eine Reihe von vorteilhaften Eigenschaften aus, die für die hier verwendeten Oszillatoren im UHF-Bereich zweckmäßig nutzbar sind.In the circuit arrangements for the UHF transmitter circuits for use in the systems cited in the introduction advantageous so-called SAW components (SAW = surface waves) used as resonators for the oscillators. These components are characterized by a number of advantageous ones Properties that are used for the here Oscillators in the UHF range are useful.
So erlauben diese Bauelemente die Herstellung von schmalbandigen Oszillatoren mit einer je nach der Größenordnung ihrer Frequenz wechselnden Güte zwischen etwa 7ooo und 2oooo. So these components allow the production of narrow-band Oscillators with a depending on the order of their Frequency changing quality between about 7ooo and 2oooo.
Diese Oszillatoren schwingen mit ihrer Grundwellenfrequenz etwa in der Größenordnung zwischen 2oo MHz und 1 GHz. Sie werden vielfach als schmalbandige, frequenzbestimmende Elemente im Rückkopplungszweig von Verstärkern eingesetzt und zeigen sehr gute Rauscheigenschaften.These oscillators vibrate at their fundamental wave frequency approximately in the range between 2oo MHz and 1 GHz. They are often called narrow-band, frequency-determining Elements used in the feedback branch of amplifiers and show very good noise characteristics.
Durch eine entsprechende Bemssung und Auslegung der OFW-Bauelemente lassen diese sich auf eine bestimmte Eigenfrequenz in der gewünschten Größenordnung festlegen.By appropriate dimensioning and interpretation of the SAW components can be assigned to a specific one Set the natural frequency in the desired range.
Für die Verbrauchsverteilereinrichtungen, so Heizkosten- oder Warmwasserkostenverteiler bei den Anlagen nach der Erfindung, wird eine einheitliche Sendefrequenz verwendet. Über diese Sendefrequenz werden sämtliche Daten, die zur Kennzeichnung für den betreffenden Verbrauchsverteiler von Interesse sind, an eine nachgeordnete Zentralstelle auf dem Funkwege übertragen. Von der Schaltungsanordnung eines jeden UHF-Senders einer Verbrauchsverteilereinrichtung wird bevorzugt eine Trägerwelle im Bereich der vorgegebenen Frequenz ausgestrahlt, welche im Rhythmus der Sequenz des Signalcodes der zu übertragenden Daten frequenzmoduliert wird.For the consumption distribution devices, so heating costs or Hot water cost allocator for the systems after the Invention, a uniform transmission frequency is used. Via this transmission frequency, all data that is required for Labeling for the relevant distribution board from Are interested in a subordinate central office on the Transmit radio paths. From the circuit arrangement of a each UHF transmitter of a consumption distribution device preferably a carrier wave in the range of the predetermined Frequency broadcast, which is in the rhythm of the sequence of the Signal codes of the data to be transmitted is frequency modulated.
Trotz der einheitlichen Festlegung einer gemeinsamen Sendefrequenz und trotz der weitgehenden Frequenzkonstanz der verwendeten OFW-Bauelemente als Resonatoren in den Senderschaltungen, sind gewisse Frequenzabweichungen, insbesondere unter Einfluß der Temperaturschwankungen, nicht ganz vermeidbar.Despite the uniform definition of a common transmission frequency and despite the largely constant frequency of the SAW components used as resonators in the transmitter circuits, are certain frequency deviations, especially below Influence of temperature fluctuations, not entirely avoidable.
Um sicherzustellen, daß trotz der Frequenzabweichungen alle UHF-Sender und damit alle damit bestückten Verbrauchsverteilereinrichtungen durch die vorteilhaft als Superheterodyne-Schaltung ausgebildete Empfängerschaltung erfaßt werden können, ist eine gewisse Brandbreite des Empfängereinganges der Empfängerschaltung unverzichtbar. To ensure that despite the frequency deviations, all UHF transmitters and thus all of the consumption distribution devices equipped with them through the advantageous as a super heterodyne circuit trained receiver circuit can be detected is a certain bandwidth of the receiver input the receiver circuit indispensable.
Damit werden durch den Empfänger jedoch alle in diesem
Empfangsbereich auftretenden Störsignale und Fremdimpulse
mit aufgenommen, welche zu einer Trübung der von einer
Verbrauchsverteilereinrichtung übermittelten Meßsignale
führen.
Dies hat zur Folge, daß eintreffende Meßsignale durch die
Prüfschaltung der dem Empfänger zugeordneten Zentralstelle
nur bedingt als richtig erkannt werden können. Es wird von
Fall zu Fall der Empfang mehrerer Signalfolgen und deren
Überprüfung notwendig werden, um die gezielte Ablesung einer
bestimmten Verbrauchsverteilereinrichtung vornehmen zu können.
Die Betriebssicherheit der Signalübertragung ist somit durch
den erforderlichen breitbandigen Eingang des Empfängers
gemindert.In this way, however, all interference signals and external pulses occurring in this reception area are recorded by the receiver, which lead to turbidity in the measurement signals transmitted by a consumption distribution device.
As a result, incoming measurement signals can only be partially recognized as correct by the test circuit of the central point assigned to the receiver. It will be necessary to receive and check several signal sequences from case to case in order to be able to read a particular consumption distribution device in a targeted manner. The operational reliability of the signal transmission is thus reduced by the required broadband input of the receiver.
Es ist Aufgabe der Erfindung, die Anordnung nach der Patentanmeldung so weiterzubilden, daß eine möglichst ungestörte Übertragung der Meßsignale von den Verbrauchsverteilereinrichtungen zum Empfänger erfolgen kann.It is an object of the invention, the arrangement according to the patent application to train so that one as undisturbed as possible Transmission of the measurement signals from the consumption distribution devices to the recipient.
Die Erfindung löst die gestellte Aufgabe dadurch, daß der Empfänger eine Empfängerschaltung mit breitbandigem Eingang enthält, der eine schmalbandig wirkende Scanner-Schaltung vorgeschaltet ist, wobei die Eingangsbandbreite der Empfängerschaltung die Streubreite der durch die Oberflächenwellen-Elemente bestimmten Sendefrequenzen der Verbrauchsverteilereinrichtungen umfaßt, und wobei der durch die Scanner-Schaltung angeschnittene Frequenzbereich in diesem Breitbandbereich Df abtastend hin- und herwandert. The invention achieves the object by that the receiver is a receiver circuit with broadband Input contains a narrow-band scanner circuit is connected upstream, the input bandwidth the receiver circuit the spread of the by the surface wave elements certain transmission frequencies of the Consumption distribution devices, and wherein the through the scanner circuit trimmed frequency range in scans this broadband area Df back and forth.
Eine Weiterbildung der Erfindung wird darin gesehen, daß die Scanner-Schaltung (3) zwingend zusammen mit der Empfängerschaltung (6) wirksam ist und nur gemeinsam mit dieser (6) ein- und ausschaltbar ist.A further development of the invention is seen in that the Scanner circuit (3) together with the receiver circuit (6) is effective and only together with this (6) can be switched on and off.
Eine andere mögliche Ausgestaltung der Erfindung wird darin erblickt, daß der Scanner-Schaltung (3) ein UHF-Breitbandverstärker (2) zugeordnet ist.Another possible embodiment of the invention is therein sees that the scanner circuit (3) is a UHF broadband amplifier (2) is assigned.
Schließlich soll eine Ausgestaltung der Erfindung noch darin gesehen werden, daß der UHF-Breitbandverstärker (2) eine nichtlineare Verstärkerkennlinie aufweist, welche vorzugsweise etwa quadratisch ist. Finally, an embodiment of the invention should still be included can be seen that the UHF broadband amplifier (2) a has non-linear amplifier characteristic, which preferably is approximately square.
Die Erfindung hat Vorteile aufzuweisen; diese bestehen z.B. darin, daß die wirksame Breite des vom Scanner in jedem Augenblick schmalbandig überdeckten Frequenzbereiches im wesentlichen immer konstant bleibt.The invention has advantages; these exist e.g. in that the effective width of the scanner frequency range covered at any moment by narrowband essentially always remains constant.
Die Erfindung ist in der nachstehenden Beschreibung in Form eines Ausführungsbeispieles erläutert und in den beigegebenen Zeichnungen im einzelnen dargestellt.The invention is in the form of the description below of an embodiment explained and in the attached Drawings shown in detail.
Es zeigen:
- Figur 1
- eine schematische Darstellung der der Erfindung zugrunde liegenden Meßeinrichtung für Verbrauchskosten;
Figur 2- eine graphische Darstellung des Dämpfungsverlaufes im Eingang der Empfängerschaltung bzw. des Breitbandverstärkers.
- Figure 1
- a schematic representation of the measuring device for consumption costs on which the invention is based;
- Figure 2
- a graphic representation of the attenuation curve in the input of the receiver circuit or the broadband amplifier.
Aus Figur 1 ist ersichtlich, daß die Empfangsantenne 1 an
den Eingang eines UHF-Breitbandverstärkers 2 angeschaltet
ist, welcher seinerseits dem gemäß der Erfindung zugeordneten
Scanner 3 vorgeschaltet ist. From Figure 1 it can be seen that the receiving antenna 1 on
the input of a
Der Breitbandverstärker 2 dient zur Anhebung des Signalpegels,
der an der Antenne 1 einfallenden Signale von den Sendeantennen
11 der Verbrauchsverteilereinrichtungen 1o.
Der Breitbandverstärker 2 hat vorzugsweise eine nichtlineare,
insbesondere quadratische Kennlinie, um die einfallenden
Signale der Verbrauchsverteilereinrichtung 1o gegenüber dem
allgemeinen Störpegel zu begünstigen.The
The
Der Scanner 3 bewirkt eine fortlaufende schmalbandige
(df) Abtastung des Durchlaßbereiches (Df) des Breitbandverstärkers
2 und erreicht dadurch eine Störverminderung des
Breitbandbereiches des Verstärkers 2. Der Scanner 3 wird
vorteilhaft von einem Mikroprozessor 5 gesteuert, welcher der
Schaltungsanordnung nach Figur 1, die die Empfängerschaltung 6
nebst dem Abrechner 7 bis 9 zum Gegenstand hat, gemeinsam ist.The scanner 3 causes a continuous narrow band
(df) scanning the pass band (Df) of the
Die Empfängerschaltung 6 umfaßt ebenso wie der Breitbandverstärker
2 einen breitbandigen (Df) Eingangskreis, welcher
eine Dämpfungscharakteristik nach Figur 2 aufweist und dem
eine Superheterodyne-Schaltung für Frequenzdemodulation
nachgeordnet ist.The
Die der Empfängerschaltung 6 nachgeordnete Auswerteschaltung 7
befaßt sich mit der Speicherung, Kontrolle und Auswertung der
von den Verbrauchsverteilereinrichtungen 1o über deren
Antennen 11 auf dem Funkwege übermittelten Meßwerttelegramme. The evaluation circuit 7 downstream of the
Die von den Verteilereinrichtungen 1o aufsummierten, an diesen
selbst angezeigten und über ihre Antennen 11 emittierten
Daten stehen in der Auswerteschaltung 7 abrufbereit dem
Auswertecomputer 8 zur Verfügung, welcher die verbrauchsabrechnungen
unter Ergänzung sämtlicher für den Verbraucher
interessanten und bedeutsamen Daten aufbereitet und diese über
den Printer 9 zum Ausdruck bringt.The summed up by the distribution devices 1o to these
themselves displayed and emitted via their
Sämtliche Baugruppen, soweit diese prozessorgesteuert sind
(3 - 9), stehen mit dem gemeinsamen, zentralen Mikroprozessor 5
über einen schematisch angedeutet Bus 15 in Verbindung und -
soweit notwendig - auch im Datenaustausch.All modules, insofar as they are processor-controlled
(3 - 9) stand with the common,
Sämtliche von den einzelnen Verbrauchsverteilereinrichtungen 1o
nach Figur 1 über deren Antennen 11 ausgestrahlten bzw.
übermittelten UHF-Signale werden von der Empfangsantenne 1
erfaßt und vom Scanner 3 störungsbereinigt, der Empfängerschaltung
6 zugeleitet.All of the individual consumption distribution devices 1o
1 via their
In Figur 2 ist schematisch der Verlauf der Eingangsfämpfung
des Breitbandverstärkers 2 bzw. der Empfängerschaltung 6
innerhalb des Frequenzbereiches Df dargestellt. Dieser
Frequenzbereich Df gibt den Streubereich des Frequenzbandes
der durch OFW-Bauelemente gesteuerten Oszillatoren der
UHF-Sender (1o) wieder. The course of the input attenuation is shown schematically in FIG
the
Der Scanner 3 stellt einen schmalbandigen, den Frequenzbereich df umfassenden Eingang der insbesondere als Superheterodyne ausgebildeten Empfangsschaltung dar, die mit einer gesteuerten variablen Abstimmung versehen ist, derart, daß der angeschnittene Frequenzbereich df im Breitbandbereich Df abtastend hin- und herwandert.The scanner 3 provides a narrow band, the frequency range df comprehensive input of the particular as Superheterodyne trained receiving circuit that with controlled variable tuning, such that the cut frequency range df in the broadband range Df scans back and forth.
In diesem Bereich Df etwa können die Eigenfrequenzen der Senderoszillatoren der Verbrauchsverteilereinrichtung 1o streuen.In this area Df, for example, the natural frequencies of the Transmitter oscillators of the consumption distribution device 1o scatter.
Dieser Streubereich Df der OFW-Resonatoren der Senderschaltungen wird vor allem bei Heizkosten- und Warmwasserkostenverteilern bedeutsam, wegen der hier auftretenden möglichen hohen Temperaturschwankungen.This scattering range Df of the SAW resonators of the transmitter circuits is mainly used for heat cost and hot water cost allocators significant because of the possible high levels that occur here Temperature fluctuations.
Die OFW-Resonatoren sind an und für sich recht frequenzkonstant, bei den in den vorgenannten Anwendungsfällen auftretenden hohen möglichen Temperaturdifferenzen jedoch sind gewisse Frequenzschwankungen der mit OFW-Resonatoren bestückten UHF-Senderschaltungen nicht ganz zu vermeiden.The SAW resonators are inherently quite constant in frequency, in those occurring in the aforementioned applications however, high possible temperature differences are certain Frequency fluctuations of those equipped with SAW resonators UHF transmitter circuits cannot be completely avoided.
Es ist somit erforderlich, daß der Verstärker 2 sowohl als
auch die Empfängerschaltung 6 im Bereich Df durchlässige
bzw. breitbandige Eingänge aufweisen. It is therefore necessary that the
Dieser vergleichsweise breitbandige Durchlaßbereich (Df) wird
nun durch den entsprechend bemessenen und ausgelegten
Scanner 3 schmalbandig (df) kontinuierlich auf Signaleinfall
abgetastet.
Es ist so sichergestellt, daß innerhalb des Durchlaßbereiches
(Df) der Eingänge des Verstärkers 2 und der Empfängerschaltung 6,
welcher ja etwa dem Streubereich der OFW-Resonatoren der
UHF-Senderschaltungen (1o) entspricht, eine stetige und
störungsmindernde, schmalbandige Überwachung stattfindet.This comparatively broadband passband (Df) is now continuously scanned for signal incidence by the appropriately dimensioned and designed scanner 3 in narrowband (df).
This ensures that continuous and interference-reducing, narrow-band monitoring takes place within the pass band (Df) of the inputs of the
Scanner 3 und Empfängerschaltung 6 sind stets zwingend gemeinsam
in Funktion.Scanner 3 and
Die Breite des Durchlaßbereiches (Df) der Eingänge des Breitbandverstärkers (2) bzw. der Empfängerschaltung (6) wird durch den Betrag der maximal möglichen Frequenzabweichung des OFW-Resonators (10) vom Sollwert bestimmt.The width of the pass band (Df) of the inputs of the broadband amplifier (2) or the receiver circuit (6) is determined by the amount the maximum possible frequency deviation of the SAW resonator (10) determined by the setpoint.
Claims (6)
- A system for centrally acquiring energy consumption costs, such as heating and hot-water costs in living spaces and/or business premises, the specific measuring place in question, the consumption value which has accumulated in each case and optionally further characterising data being signalled, through the transmission of encoded signals, by the individual places of consumption to a central receiving place at which the transmitted data from the individual measuring places is centrally acquired and optionally supplied to the statement of account, an electronic consumption distribution device (10) being associated with each measuring place and elaborating, adding up and electronically storing a relative or absolute consumption value for the measuring place in question, and an electronic parallel-to-serial converter being associated with the electronic consumption distribution device (10) and converting the electronically recorded and encoded consumption value into a sequential pulse train, a transmitter emitting electromagnetic waves also being associated with the consumption distribution device (10) and being switched, by the parallel-to-serial converter, in rhythm with the sequential pulse train provided by the latter, and the electronic transmitting circuit having an acoustic surface-wave element as a frequency resonator, and a receiver (6), which selects and receives electromagnetic waves, being associated with the central receiving place and transferring the transmitted electromagnetic sequential pulse signals to the central receiving place, characterised in that the receiver comprises a receiver circuit (6) with wide-band input (Df), with which a narrow-band (df) acting scanner circuit is connected in series, the input bandwidth of the receiver circuit comprising the scattering width of the transmission frequencies, of the consumption distribution devices, determined by the surface-wave elements, and the frequency range which is aimed at by the scanner circuit moving to and fro in this wide band range Df in a scanning manner.
- A system in accordance with Claim 1, characterised in that the scanner circuit (3) is compulsorily operative together with the receiver circuit (6) and can only be closed and disconnected together with the latter (6).
- A system in accordance with Claim 1 or 2, characterised in that a UHF wide-band amplifier (2) is associated with the scanner circuit (3).
- A system in accordance with Claim 3, characterised in that the UHF wide-band amplifier (2) has a non-linear amplifying characteristic.
- A system in accordance with Claim 4, characterised in that the amplifying characteristic is approximately quadratic.
- A system in accordance with any one of Claims 1 - 5, characterised in that the width of the pass-band (Df) of the inputs of the wide-band amplifier (2) or alternatively the receiver circuit (6) is determined by the magnitude of the maximum possible frequency deviation of the surface-wave resonator from the desired value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4312596 | 1993-04-17 | ||
| DE19934312596 DE4312596A1 (en) | 1993-04-17 | 1993-04-17 | System for the central recording of energy consumption costs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0627716A1 EP0627716A1 (en) | 1994-12-07 |
| EP0627716B1 true EP0627716B1 (en) | 2000-03-01 |
Family
ID=6485719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19940106017 Expired - Lifetime EP0627716B1 (en) | 1993-04-17 | 1994-04-18 | Apparatus for central acquisition of energy consumption costs |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0627716B1 (en) |
| DE (1) | DE4312596A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9614553B2 (en) | 2000-05-24 | 2017-04-04 | Enocean Gmbh | Energy self-sufficient radiofrequency transmitter |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU726789B2 (en) | 1997-02-12 | 2000-11-23 | Siemens Aktiengesellschaft | Arrangement and method for generating coded high-frequency signals |
| DE29710248U1 (en) * | 1997-06-12 | 1998-10-15 | Raab Karcher Energy Services G | Device for recording heat consumption and for regulating the heating power of a single radiator for room temperature control |
| DE19745973C2 (en) * | 1997-10-17 | 2000-06-29 | Schwenk Kg Theben Werk | Radio controlled heating controller |
| DE19751214A1 (en) * | 1997-11-19 | 1999-06-10 | Raab Karcher Energy Services G | Process for recording and evaluating temperature-dependent consumption values or measured values of other physical quantities |
| NO322272B1 (en) | 1999-03-26 | 2006-09-04 | Kongsberg Maritime As | Sensor and temperature monitoring system inside hard-to-reach, moving parts |
| DE10150128C2 (en) | 2001-10-11 | 2003-10-02 | Enocean Gmbh | Wireless sensor system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3949312A (en) * | 1974-09-16 | 1976-04-06 | American Electronic Laboratories, Inc. | Frequency scanning means and method |
| US5056107A (en) * | 1990-02-15 | 1991-10-08 | Iris Systems Inc. | Radio communication network for remote data generating stations |
| GB9118030D0 (en) * | 1991-08-21 | 1991-10-09 | Disys Inc | Data gathering system |
-
1993
- 1993-04-17 DE DE19934312596 patent/DE4312596A1/en not_active Withdrawn
-
1994
- 1994-04-18 EP EP19940106017 patent/EP0627716B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9614553B2 (en) | 2000-05-24 | 2017-04-04 | Enocean Gmbh | Energy self-sufficient radiofrequency transmitter |
| US9887711B2 (en) | 2000-05-24 | 2018-02-06 | Enocean Gmbh | Energy self-sufficient radiofrequency transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4312596A1 (en) | 1994-10-20 |
| EP0627716A1 (en) | 1994-12-07 |
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