DE19810870A1 - Electroacoustic communications system for use in connection with water supply systems - Google Patents
Electroacoustic communications system for use in connection with water supply systemsInfo
- Publication number
- DE19810870A1 DE19810870A1 DE1998110870 DE19810870A DE19810870A1 DE 19810870 A1 DE19810870 A1 DE 19810870A1 DE 1998110870 DE1998110870 DE 1998110870 DE 19810870 A DE19810870 A DE 19810870A DE 19810870 A1 DE19810870 A1 DE 19810870A1
- Authority
- DE
- Germany
- Prior art keywords
- acoustic
- electrical
- signal
- information
- water
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
Abstract
Description
Um Wasserversorgungssyteme ökonomisch betreiben zu können sind viele Informationen (z. B. die Menge des durchgeflossenen Wasser, Druck, Pumpendrehzahl, usw.) nötig. Diese Informationen entstehen entlang des Wasserversorgungsystems, räumlich fern von der Betriebsführung. Die Informationen müssen über weite Strecken übertragen werden. Es stehen zwei Möglichkeiten zur Verfügung: Entweder ein eigenes Informationsnetz aufzubauen und zu betreiben, oder das öffentliche Informationsnetz zu benutzen.There is a lot of information to be able to operate water supply systems economically (e.g. the amount of water flowed through, pressure, pump speed, etc.) necessary. This Information arises along the water supply system, spatially far from the Operational management. The information must be transmitted over long distances. There are two options are available: either to set up your own information network and to operate, or to use the public information network.
Das eigene Netz hat den wesentlichen Vorteil, für diese spezielle Anwendung entwickelt und angepaßt zu sein. Es ist aber meist teuer, weil die zu übertragende Information das Netz nicht vollständig auslastet. Der öffentliche Nachrichtendienst kostet Gebühren.The own network has the essential advantage, developed for this special application and to be adapted. However, it is usually expensive because the information to be transmitted is not the network fully utilized. The public intelligence service costs fees.
Beide Lösungen stehen aber nur an solchen Gebieten zur Verfügung, wo die Infrastruktur entwickelt ist. Sogar in Industrieländern gibt es Gebiete, die mit dem Wasserversorgungsystem erreicht werden sollen aber in denen die nachrichtentechnische Infrastruktur nicht zur Verfügung steht. In Entwicklungsländern, z. B. in Wüstenregionen, wo der Mangel an Infrastruktur noch größer ist, kann die zuverlässige Lösung der Informationsübertragung sehr teuer sein.However, both solutions are only available in areas where the infrastructure is developed. Even in developed countries, there are areas that match the Water supply system should be achieved in which the communication technology Infrastructure is not available. In developing countries, e.g. B. in desert regions where the lack of infrastructure is even greater, the reliable solution to the Information transfer can be very expensive.
Die Aufgabe der Erfindung ist, die Informationen durch solche Medien zu übertragen, die in einem Wasserversorgungssystem immer vorhanden sind.The object of the invention is to transmit the information through such media, which in a water supply system are always available.
Erfindungsgemäß ist die obige Aufgabe dadurch gelöst, daß die Informationen mit Hilfe der Digitaltechnik, Modulation- und Codierungsverfahren als akustisches Signal durch die wassergefüllte Leitung zuverlässig und kostengünstig übertragen werden.According to the invention the above object is achieved in that the information with the help of Digital technology, modulation and coding processes as an acoustic signal by the water-filled pipe can be transferred reliably and inexpensively.
Ausführungsbeispiele zeigen Fig. 1, und Fig. 2. Der akustische Umwandler, (Sender oder Empfänger) (3) wird mit Hilfe eines Anpassungstücks (2) auf der Wasserleitung (1) montiert. Meist ist es vorteilhaft die elektronische Signalverarbeitungseinrichtung separat auszuführen und das modulierte und codierte Signal elektrisch zu (und von) der Wasserleitung führen (4).Embodiments of FIGS. 1 and Fig. 2. The acoustic converter (transmitter or receiver) (3) is mounted by means of an adjustment piece (2) on the water circuit (1). It is usually advantageous to run the electronic signal processing device separately and to conduct the modulated and coded signal electrically to (and from) the water pipe ( 4 ).
Es ist weitgehend möglich die elektronische Signalverarbeitungseinrichtungen als Bestandteil der akustischen Umwandler auszuführen und unmittelbar an das Wasserrohr zu montieren.It is largely possible to use the electronic signal processing devices as a component the acoustic transducer and mount it directly on the water pipe.
Es gibt mehrere Möglichkeiten, das Ultraschallsignal optimal in das Rohr einzukoppeln. Fig. 1 zeigt eine akustische Hornantenne (5), wo die Sensoren entweder unmittelbar mit dem Wasser Kontakt haben, oder die Antenne mit einem Kunststoff gefüllt ist, der die optimale Einkopplung der Ultraschallenergie gewährleistet. Fig. 2 zeigt eine weitere mögliche Anordnung durch eine Reihe von Sensoren, bei der die optimale Ankopplung durch die phasen- und amplitudenichtige Anregung der Sensoren gewährleistet ist.There are several ways to optimally couple the ultrasonic signal into the pipe. Fig. 1 shows an acoustic horn antenna ( 5 ), where the sensors either have direct contact with the water, or the antenna is filled with a plastic, which ensures the optimal coupling of the ultrasonic energy. Fig. 2 shows a further possible arrangement by a series of sensors, in which the optimal coupling is ensured by the phase and amplitude correct excitation of the sensors.
Mit Hilfe von Signalverarbeitungsmethoden kann die Laufzeit des Signales ausgewertet werden, und damit eine Flußrichtungs- bzw Flußmengenbestimmung vorgenommen werden. Die Auswertung beruht auf statistischen Modellen, z. B. nach dem Hidden Markov Verfahren. Diese Auswertung kann gleichzeitig und mit demselben System wie zur Datenübertragung vorgeschlagen durchgeführt werden. Das Verfahren kann z. B. zur Leckerkennung in der Wasserleitung genutzt werden.With the help of signal processing methods, the runtime of the signal can be evaluated be, and thus a flow direction or flow quantity determination can be made. The evaluation is based on statistical models, e.g. B. according to the Hidden Markov method. This evaluation can be carried out simultaneously and with the same system as for data transmission proposed to be carried out. The method can e.g. B. for leak detection in the Water pipe can be used.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998110870 DE19810870A1 (en) | 1998-03-13 | 1998-03-13 | Electroacoustic communications system for use in connection with water supply systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998110870 DE19810870A1 (en) | 1998-03-13 | 1998-03-13 | Electroacoustic communications system for use in connection with water supply systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19810870A1 true DE19810870A1 (en) | 1999-09-16 |
Family
ID=7860733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998110870 Withdrawn DE19810870A1 (en) | 1998-03-13 | 1998-03-13 | Electroacoustic communications system for use in connection with water supply systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19810870A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2224901A1 (en) * | 2004-11-08 | 2005-03-01 | Juan Antonio Talavera Martin | Transmission system based on the propagation of elastic waves through electric cables |
WO2006000202A1 (en) * | 2004-06-25 | 2006-01-05 | Hasenau Laszlo P | Assembly for the optical transmission of data through fluid conducting conduits |
-
1998
- 1998-03-13 DE DE1998110870 patent/DE19810870A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006000202A1 (en) * | 2004-06-25 | 2006-01-05 | Hasenau Laszlo P | Assembly for the optical transmission of data through fluid conducting conduits |
DE102004030934B3 (en) * | 2004-06-25 | 2006-02-09 | Laszlo Hasenau | Arrangement for optical data transmission |
ES2224901A1 (en) * | 2004-11-08 | 2005-03-01 | Juan Antonio Talavera Martin | Transmission system based on the propagation of elastic waves through electric cables |
WO2006051128A2 (en) * | 2004-11-08 | 2006-05-18 | Talavera Martin Juan Antonio | Transmission system based on the propagation of elastic waves through electric cables |
WO2006051128A3 (en) * | 2004-11-08 | 2008-06-19 | Martin Juan Antonio Talavera | Transmission system based on the propagation of elastic waves through electric cables |
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Legal Events
Date | Code | Title | Description |
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8130 | Withdrawal |