DE102008057437B4 - Apparatus and method for short circuit isolation in speaker ring lines of electroacoustic installations - Google Patents
Apparatus and method for short circuit isolation in speaker ring lines of electroacoustic installations Download PDFInfo
- Publication number
- DE102008057437B4 DE102008057437B4 DE102008057437A DE102008057437A DE102008057437B4 DE 102008057437 B4 DE102008057437 B4 DE 102008057437B4 DE 102008057437 A DE102008057437 A DE 102008057437A DE 102008057437 A DE102008057437 A DE 102008057437A DE 102008057437 B4 DE102008057437 B4 DE 102008057437B4
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- Germany
- Prior art keywords
- short
- circuit
- modules
- contained
- line
- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/007—Monitoring arrangements; Testing arrangements for public address systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
Abstract
Bei der Erfindung handelt es sich um eine Vorrichtung zur Isolation von Leitungskurzschlüssen in Lautsprecherringleitungen für elektroakustische Anlagen, die eine zentrale elektronische Auswerteinheit mit Tonhilfssignaldetektor (24) und Tonhilfssignalgenerator (23), einen Mischverstärker (21), eine durch einen Mikroprozessor (25) gesteuerte Schalteinrichtung (22), sowie ein jedem Lautsprecher (3) zugeordnetes Kurzschlussisolationsmodul mit Gleichrichtern (11), Konstantstromquellen (12), Schaltelementen (13), Lastwiderständen (14) und Leuchtdioden (15) enthält. In den Kurzschlussisolationsmodulen stellen die tonhilfssignalgesteuerten konstantstromquellengespeisten Schaltelemente im Kurzschlussfalle in der Lautsprecherringleitung eine Isolation für den Leitungskurzschluss, örtlich vor und nach dem Kurzschluss gelegen, über die Lastwiderstände dar.The invention relates to a device for isolating line shorts in loudspeaker ring lines for electroacoustic systems, which has a central electronic evaluation unit with auxiliary audio signal detector (24) and auxiliary audio signal generator (23), a mixing amplifier (21) and a switching device controlled by a microprocessor (25) (22), as well as a short-circuit insulation module associated with each loudspeaker (3) with rectifiers (11), constant current sources (12), switching elements (13), load resistors (14) and light-emitting diodes (15). In the short-circuit isolation modules, the auxiliary sound-signal-controlled, constant current source-supplied switching elements in the event of a short circuit in the loudspeaker ring line provide isolation for the line short circuit, located locally before and after the short circuit, via the load resistors.
Description
Die Erfindung betrifft elektronische Kurzschlussisolationsmodule mit elektronischer Überwachungseinheit für Lautsprecherringleitungen in elektroakustischen Anlagen.The invention relates to electronic short-circuit isolation modules with electronic monitoring unit for speaker ring lines in electroacoustic systems.
Überwachungseinheiten für Lautsprecherleitungen sind aus den Offenlegungsschriften
Ebenso sind Module zur Kompensation von störenden Leitungsparametern für Lautsprecherleitungen bekannt.Likewise, modules for the compensation of disturbing cable parameters for loudspeaker lines are known.
Hauptleistungsanforderung von Leitungsüberwachungen für Lautsprecherleitungen ist die ständige Funktionsbereitschaft von elektroakustischen Anlagen, die nur dann sichergestellt werden kann, wenn alle relevanten Systemkomponenten permanent auf ihre Betriebsbereitschaft hin überwacht werden, mögliche auftretende Fehler schnell erkannt, weitergeleitet und wenn möglich selbstheilend automatisch beseitigt werden. Ein wesentlicher Bestandteil von elektroakustischen Anlagen sind die darin enthaltenen Lautsprecher und die notwendigen Lautsprecherverbindungsleitungen.Main power requirement of line monitoring for loudspeaker lines is the constant operational readiness of electroacoustic systems, which can only be ensured if all relevant system components are constantly monitored for their operational readiness, possible errors are quickly detected, forwarded and, if possible, self-healing automatically eliminated. An essential part of electroacoustic systems are the speakers and the necessary speaker connection cables.
Nachteilig ist, dass bei einem Kurzschluss in den Lautsprecherleitungen dieser zwar erkannt wird, die betroffene Leitung jedoch komplett ausfällt.The disadvantage is that in case of a short circuit in the speaker lines this is indeed recognized, but the affected line fails completely.
Aufgabe der vorliegenden Erfindung ist es daher, diesen Totalausfall zu verhindern indem mögliche Kurzschlüsse automatisch isoliert werden und somit der nicht gestörte Teil der Lautsprecherleitung und die daran betriebenen Lautsprecher fehlerfrei weiter funktionieren. Erfindungsgemäß wird die Aufgabe durch eine Vorrichtung nach Anspruch 1 und ein Verfahren nach Anspruch 2 gelöst.Object of the present invention is therefore to prevent this total failure by possible short circuits are automatically isolated and thus the undisturbed part of the loudspeaker line and the speakers operated on it continue to work error-free. According to the invention the object is achieved by a device according to claim 1 and a method according to claim 2.
Die Schaltelemente in den Kurzschlussisolationsmodulen schalten die Lastwiderstände, örtlich vor und nach dem Kurzschluss gelegen, so in die Lautsprecherringleitung, damit der Kurzschluss isoliert ist.The switching elements in the short-circuit isolation modules switch the load resistors, located locally before and after the short circuit, into the speaker ring line so that the short circuit is isolated.
Weitere vorteilhafte Merkmale der elektronischen Kurzschlussisolationsmodule und der elektronischen Überwachungseinheit sind in den Unteransprüchen enthalten.Further advantageous features of the electronic short-circuit isolation modules and the electronic monitoring unit are contained in the subclaims.
Die Erfindung wird anhand eines Ausführungsbeispieles näher erläutert.The invention will be explained in more detail with reference to an embodiment.
An einer elektronischen Auswerteinheit können mehrere Lautsprecherisolationsmodule betrieben werden. Mit der elektronischen Auswerteinheit werden den an den Lautsprechern angebrachten Kurzschlussisolationsmodulen das Tonnutzsignal (
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008057437A DE102008057437B4 (en) | 2008-11-14 | 2008-11-14 | Apparatus and method for short circuit isolation in speaker ring lines of electroacoustic installations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008057437A DE102008057437B4 (en) | 2008-11-14 | 2008-11-14 | Apparatus and method for short circuit isolation in speaker ring lines of electroacoustic installations |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102008057437A1 DE102008057437A1 (en) | 2010-05-20 |
DE102008057437B4 true DE102008057437B4 (en) | 2012-08-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102008057437A Expired - Fee Related DE102008057437B4 (en) | 2008-11-14 | 2008-11-14 | Apparatus and method for short circuit isolation in speaker ring lines of electroacoustic installations |
Country Status (1)
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DE (1) | DE102008057437B4 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100380A (en) * | 1976-03-12 | 1978-07-11 | Federal Signal Corporation | Supervisory circuit for monitoring speaker coils |
GB2299238A (en) * | 1995-03-22 | 1996-09-25 | Audix Communications Limited | Loudspeaker with means to prevent drawing excessive current |
DE19901288A1 (en) * | 1999-01-15 | 2000-07-20 | Klein & Hummel Gmbh | Loudspeaker monitoring unit for multiple speaker systems uses monitor and coding unit at each loudspeaker. |
WO2008036992A2 (en) * | 2006-09-28 | 2008-04-03 | Honeywell Life Safety Austria Gmbh | Method and measuring device for monitoring loudspeaker systems |
-
2008
- 2008-11-14 DE DE102008057437A patent/DE102008057437B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100380A (en) * | 1976-03-12 | 1978-07-11 | Federal Signal Corporation | Supervisory circuit for monitoring speaker coils |
GB2299238A (en) * | 1995-03-22 | 1996-09-25 | Audix Communications Limited | Loudspeaker with means to prevent drawing excessive current |
DE19901288A1 (en) * | 1999-01-15 | 2000-07-20 | Klein & Hummel Gmbh | Loudspeaker monitoring unit for multiple speaker systems uses monitor and coding unit at each loudspeaker. |
WO2008036992A2 (en) * | 2006-09-28 | 2008-04-03 | Honeywell Life Safety Austria Gmbh | Method and measuring device for monitoring loudspeaker systems |
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Publication number | Publication date |
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DE102008057437A1 (en) | 2010-05-20 |
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8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: GRAEF & MEYER GMBH, 66459 KIRKEL, DE |
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R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |
Effective date: 20121201 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |