EP0328985A2 - Warning radio receiver - Google Patents

Warning radio receiver Download PDF

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Publication number
EP0328985A2
EP0328985A2 EP89102014A EP89102014A EP0328985A2 EP 0328985 A2 EP0328985 A2 EP 0328985A2 EP 89102014 A EP89102014 A EP 89102014A EP 89102014 A EP89102014 A EP 89102014A EP 0328985 A2 EP0328985 A2 EP 0328985A2
Authority
EP
European Patent Office
Prior art keywords
output stage
power supply
circuit
control signal
radio receiver
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
EP89102014A
Other languages
German (de)
French (fr)
Other versions
EP0328985A3 (en
EP0328985B1 (en
Inventor
Günter Luber
Wolfgang Heuer
Rudolf Messerschmidt
Uwe Mätzold
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke 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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Priority to AT89102014T priority Critical patent/ATE98069T1/en
Publication of EP0328985A2 publication Critical patent/EP0328985A2/en
Publication of EP0328985A3 publication Critical patent/EP0328985A3/en
Application granted granted Critical
Publication of EP0328985B1 publication Critical patent/EP0328985B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/008—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations with transmission via TV or radio broadcast
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/181—Prevention or correction of operating errors due to failing power supply

Definitions

  • the invention relates to the field of warning radio receivers, which is defined in claim 1.
  • Warning radio receivers are known, inter alia, from the applicant's prospectus PINS. These receivers can have self-monitoring circuits as described in DE-PS 32 11 813.
  • the known receivers are supplied by an integrated battery.
  • the supply from an accumulator requires the lowest possible power consumption in the receiver in order to ensure the longest possible supply period.
  • the warning radio receiver comprises a receiving part 2 connected to the antenna 1, the output of which is connected to an output stage 3 which drives the loudspeaker 4.
  • a control signal decoder 5 is connected to the output of the receiving part 2.
  • these device stages require a power supply, which in the warning radio receiver comprises a power supply unit 6 and a battery 7 or an accumulator.
  • control signal decoder 5 can therefore be a decoder for the radio data signal, but is not limited to this.
  • a controllable switch 9 is looped into the circuit of the output stage, which can separate the output stage from the power supply 6, 7.
  • the lines of the power supply are highlighted in the circuit diagram because they form a separate line network from the signal lines.
  • the switch 9 is switchable from two separate control circuits 10 and 11.
  • the first control circuit 10 comprises an auxiliary contact 12 of the changeover switch 8, which ensures the power supply of the receiver from the battery in the event of a power failure. In the position which it assumes in the event of a power failure, the contact opens the switch 9, as a result of which the output stage 3 is separated from the receiving part 2 and control signal decoder 5 which continue to consume power.
  • the second control circuit 11 is connected to the control signal decoder 5 in addition to other control stages.
  • the second control circuit 11 causes the switch 9 to reclose when a predetermined control signal arrives.
  • the second control circuit must include a holding circuit 13 and a third control circuit 13 controls the reopening of the switch 9. The effect of this third control circuit is then parallel to the first control circuit.
  • control circuits are best implemented with semiconductor switches. Their structure is essentially determined by the above information, so that the reproduction of a more precise circuit diagram is unnecessary.
  • this circuit In the event of a power failure, this circuit not only switches the power supply to the built-in battery, but also disconnects the output stage from the power supply network.
  • the warning radio receiver is thus in a so-called stand-by mode.
  • the switch 9 is opened again, be it that it is no longer held by the control circuit 10 or is caused by the control circuit 12 to open. In the latter case, the end of the warning signal must be broadcast by the warning radio transmitter at the end of the warning broadcast.

Abstract

A warning radio receiver is described whose power requirement is covered in the event of mains power failure by a battery and whose power consumption is reduced by a de-activation of the output stage synchronous with the power failure. <IMAGE>

Description

Die Erfindung betrifft den Bereich der Warnfunkempfänger, der im Anspruch 1 näher bestimmt ist.The invention relates to the field of warning radio receivers, which is defined in claim 1.

Warnfunkempfänger sind unter anderem aus dem Prospekt PINS der An­melderin bekannt. Diese Empfänger können über selbstkontrollierende Überwachungsschaltungen verfügen, wie sie in der DE-PS 32 11 813 beschrieben sind.Warning radio receivers are known, inter alia, from the applicant's prospectus PINS. These receivers can have self-monitoring circuits as described in DE-PS 32 11 813.

Bei Stromausfall werden die bekannten Empfänger von einem integrier­ten Akkumulator versorgt. Die Versorgung aus einem Akkumulator er­fordert einen möglichst geringen Stromverbrauch in dem Empfänger, um eine möglichst lange Versorgungsdauer zu gewährleisten.In the event of a power failure, the known receivers are supplied by an integrated battery. The supply from an accumulator requires the lowest possible power consumption in the receiver in order to ensure the longest possible supply period.

Der Stromverbrauch in einem solchen Empfänger läßt sich erheblich reduzieren, wenn der Warnfunkempfänger in der in Anspruch 1 näher gekennzeichneten Weise ausgestaltet ist.The power consumption in such a receiver can be considerably reduced if the warning radio receiver is designed in the manner characterized in more detail in claim 1.

Anhand eines Blockschaltbildes wird ein erfindungsgemäßer Warnfunk­empfänger näher erläutert:A warning radio receiver according to the invention is explained in more detail using a block diagram:

Der erfindungsgemäße Warnfunkempfänger umfaßt laut seiner Definition ein an die Antenne 1 angeschlossenes Empfangsteil 2, dessen Ausgang mit einer Endstufe 3 verbunden ist, die den Lautsprecher 4 treibt. Parallel zur Endstufe 3 ist an den Ausgang des Empfangsteils 2 ein Steuersignaldecoder 5 angeschlossen.According to its definition, the warning radio receiver according to the invention comprises a receiving part 2 connected to the antenna 1, the output of which is connected to an output stage 3 which drives the loudspeaker 4. In parallel to the output stage 3, a control signal decoder 5 is connected to the output of the receiving part 2.

Zu ihrem Betrieb bedürfen diese Gerätestufen einer Stromversorgung, die bei dem Warnfunkempfänger ein Netzteil 6 und eine Batterie 7 bzw. einen Akkumulator umfaßt.For their operation, these device stages require a power supply, which in the warning radio receiver comprises a power supply unit 6 and a battery 7 or an accumulator.

Es ist bekannt, Steuersignale für einen Empfänger z. B. einem 57-kHz-Hilfsträger aufzumodulieren und diesen zusätzlich zu den Programmsignalen auf der dem Sender zugeordneten Trägerfrequenz zu den empfangsbereiten Empfängern zu übertragen.It is known to control signals for a receiver z. B. to modulate a 57 kHz subcarrier and to transmit this in addition to the program signals on the carrier frequency assigned to the transmitter to the receivers ready to receive.

Eine spezielle Art solcher Steuersignale wird mittels des Radiodaten­signals, RDS, übertragen und sind in einer Spezifikation der EBU festgelegt. Ihre Informationskapazität ist mit den bisher verabre­deten Anwendungsfällen noch nicht erschöpft. Der Steuersignaldeco­der 5 kann daher ein Decoder für das Radiodatensignal sein, ist aber darauf nicht beschränkt.A special type of such control signals is transmitted by means of the radio data signal, RDS, and are specified in a specification of the EBU. Your information capacity is not yet exhausted with the previously agreed use cases. The control signal decoder 5 can therefore be a decoder for the radio data signal, but is not limited to this.

In dem Stromkreis der Endstufe ist ein steuerbarer Einschalter 9 eingeschleift, der die Endstufe von der Stromversorgung 6, 7 zu trennen vermag. Die Leitungen der Stromversorgung sind im Schalt­bild stärker hervorgehoben, da sie ein von den Signalleitungen ge­trenntes Leitungsnetz bilden.A controllable switch 9 is looped into the circuit of the output stage, which can separate the output stage from the power supply 6, 7. The lines of the power supply are highlighted in the circuit diagram because they form a separate line network from the signal lines.

Der Einschalter 9 ist von zwei getrennten Steuerkreisen 10 und 11 aus schaltbar. Der erste Steuerkreis 10 umfaßt einen Hilfskon­takt 12 des Umschalters 8, der bei Stromausfall die Stromversor­gung des Empfängers aus der Batterie sicherstellt. Der Kontakt be­wirkt in der Stellung, die er bei Stromausfall einnimmt, eine Öffnung des Einschalters 9, wodurch die Endstufe 3 von den weiter­hin stromverbrauchenden Empfangsteil 2 und Steuersignaldecoder 5 abgetrennt wird.The switch 9 is switchable from two separate control circuits 10 and 11. The first control circuit 10 comprises an auxiliary contact 12 of the changeover switch 8, which ensures the power supply of the receiver from the battery in the event of a power failure. In the position which it assumes in the event of a power failure, the contact opens the switch 9, as a result of which the output stage 3 is separated from the receiving part 2 and control signal decoder 5 which continue to consume power.

Der zweite Steuerkreis 11 ist neben anderen Steuerstufen an den Steuersignaldecoder 5 angeschlossen. Der zweite Steuerkreis 11 be­wirkt bei Eintreffen eines zuvor festgelegten Steuersignals ein Wiederschließen des Einschalters 9.The second control circuit 11 is connected to the control signal decoder 5 in addition to other control stages. The second control circuit 11 causes the switch 9 to reclose when a predetermined control signal arrives.

Läßt sich das verabredete Steuersignal zum Einschalten des Ein­schalters 9 nicht ausreichend häufig im Radiodatensignal wieder­holen, um den Einschalter 9 geschlossen zu halten, dann muß der zweite Steuerkreis eine Halteschaltung 13 umfassen und ein dritter Steuerkreis 13 das Wiederöffnen des Einschalters 9 steuern. Dieser dritte Steuerkreis liegt dann in seiner Wirkung parallel zum ersten Steuerkreis.If the agreed control signal for switching on the switch 9 cannot be repeated sufficiently frequently in the radio data signal to keep the switch 9 closed, then the second control circuit must include a holding circuit 13 and a third control circuit 13 controls the reopening of the switch 9. The effect of this third control circuit is then parallel to the first control circuit.

Die Steuerkreise werden am besten mit Halbleiterschaltern reali­siert. Ihr Aufbau ist durch die vorstehenden Angaben im wesent­lichen festgelegt, so daß sich die Wiedergabe eines genaueren Schaltbildes erübrigt.The control circuits are best implemented with semiconductor switches. Their structure is essentially determined by the above information, so that the reproduction of a more precise circuit diagram is unnecessary.

Diese Schaltung bewirkt bei Netzausfall neben der Umschaltung der Stromversorgung auf die eingebaute Batterie auch eine Abtrennung der Endstufe von dem Stromversorgungsnetz. Der Warnfunkempfänger befin­det sich somit in einem sogenannten Stand-By-Mode.In the event of a power failure, this circuit not only switches the power supply to the built-in battery, but also disconnects the output stage from the power supply network. The warning radio receiver is thus in a so-called stand-by mode.

Verbreitet der Warnfunksender eine Warnsendung und sendet dieser vorausgehend ein Steuersignal z. B. als RDS-Modulation auf dem 57-kHz-Hilfsträger aus, dann veranlaßt der Steuersignaldecoder bei Empfang dieses Signals über den Einschalter 9 ein Zuschalten der Endstufe, so daß die Warnsendung über den Lautsprecher hörbar wird.Spreads the warning radio transmitter a warning broadcast and sends this beforehand a control signal z. B. as RDS modulation on the 57 kHz subcarrier, then causes the control signal decoder on receipt of this signal via the switch 9 to switch on the power amplifier, so that the warning broadcast can be heard over the loudspeaker.

Ist die Warnsendung beendet, dann wird der Einschalter 9 wieder ge­öffnet, sei es, daß er vom Steuerkreis 10 nicht mehr gehalten wird oder vom Steuerkreis 12 zur Öffnung veranlaßt wird. Im letzteren Fall muß seitens des Warnfunksenders am Schluß der Warnsendung ein das Ende anzeigende Steuersignal ausgestrahlt werden.If the warning has ended, the switch 9 is opened again, be it that it is no longer held by the control circuit 10 or is caused by the control circuit 12 to open. In the latter case, the end of the warning signal must be broadcast by the warning radio transmitter at the end of the warning broadcast.

Claims (2)

Warnfunkempfänger mit einem Empfangsteil, einer Endstufe und einer Stromversorgung, die ein Netzteil und eine Batterie als alternative Stromquellen umfaßt,
gekennzeichnet durch,
einen Einschalter (9) im Stromkreis der Endstufe (3) gesteuert von einem ersten Stromkreis (10), der beim Übergang des Gerätes in den Batteriebetriebsmode die Stromversorgung der Endstufe (3) unter­bricht und von einem zweiten Steuerkreis (11), der an einem Steuer­signaldecoder (5) angeschlossen ist, welche die Unterbrechung der Stromversorgung der Endstufe wieder aufhebt, wenn ein entsprechen­des erstes Steuersignal vom Empfangsteil (2) empfangen und vom Steuersignaldecoder (5) detektiert ist.Warning radio receiver with a receiving part, an output stage and a power supply, which comprises a power supply unit and a battery as alternative power sources,
marked by,
a switch (9) in the circuit of the output stage (3) controlled by a first circuit (10) which interrupts the power supply to the output stage (3) when the device is in battery operation mode and by a second control circuit (11) connected to a control signal decoder (5) is connected, which cancels the interruption of the power supply to the output stage when a corresponding first control signal is received by the receiving part (2) and detected by the control signal decoder (5). Warnfunkempfänger nach Anspruch 1,
dadurch gekennzeichnet,
daß parallel zum ersten Stromkreis (10) ein dritter Stromkreis (13) liegt, der die Unterbrechung der Stromversorgung der Endstufe wie­der herstellt, wenn ein entsprechendes zweites Steuersignal vom Empfangsteil (2) empfangen und vom Steuersignaldecoder (5) detek­tiert ist.Warning radio receiver according to claim 1,
characterized,
that parallel to the first circuit (10) is a third circuit (13) which restores the interruption of the power supply to the output stage when a corresponding second control signal is received by the receiving part (2) and detected by the control signal decoder (5).
EP89102014A 1988-02-19 1989-02-06 Warning radio receiver Expired - Lifetime EP0328985B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89102014T ATE98069T1 (en) 1988-02-19 1989-02-06 WARNING RADIO RECEIVER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3805191 1988-02-19
DE3805191A DE3805191A1 (en) 1988-02-19 1988-02-19 WARNING RECEIVER

Publications (3)

Publication Number Publication Date
EP0328985A2 true EP0328985A2 (en) 1989-08-23
EP0328985A3 EP0328985A3 (en) 1991-01-23
EP0328985B1 EP0328985B1 (en) 1993-12-01

Family

ID=6347729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102014A Expired - Lifetime EP0328985B1 (en) 1988-02-19 1989-02-06 Warning radio receiver

Country Status (6)

Country Link
US (1) US5060300A (en)
EP (1) EP0328985B1 (en)
JP (1) JP2865691B2 (en)
AT (1) ATE98069T1 (en)
DE (3) DE3805191A1 (en)
ES (1) ES2046340T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726554A1 (en) * 1995-02-08 1996-08-14 Peter A. Hochstein Traffic information system using light emitting diodes

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2629436B2 (en) * 1989-10-31 1997-07-09 日本電気株式会社 Power supply for in-vehicle electronic equipment
DE4228116C2 (en) * 1992-08-25 1996-10-17 Blaupunkt Werke Gmbh Circuit arrangement for the operating voltage supply of a car radio
JPH07106989A (en) * 1993-09-30 1995-04-21 Sony Corp Receiving device
US6993316B2 (en) * 2001-06-05 2006-01-31 Xm Sattellite Radio, Inc. Method and apparatus for backup power in a communication system
US7248152B2 (en) * 2005-01-14 2007-07-24 Xm Satellite Radio, Inc. Automatic on/off switch for vehicle power outlets

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121509A (en) * 1977-03-31 1978-10-24 Toshiba Corp Radio receiver featuring selective calling function
JPS56134842A (en) * 1980-03-25 1981-10-21 Matsushita Electric Ind Co Ltd Alarm broadcasting receiver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1525326A (en) * 1975-06-26 1978-09-20 Motorola Inc Circuit for use with personalised radio apparatus
DE3211813A1 (en) * 1982-03-31 1983-10-13 Blaupunkt-Werke Gmbh, 3200 Hildesheim CIRCUIT FOR CONTROLLING THE READINESS OF A MUTED WARNING RADIO RECEIVER
JPS6272234A (en) * 1985-09-26 1987-04-02 Matsushita Electric Ind Co Ltd Emergency broadcast receiver
JPS6282727A (en) * 1985-10-07 1987-04-16 Matsushita Electric Ind Co Ltd Emergency broadcast receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121509A (en) * 1977-03-31 1978-10-24 Toshiba Corp Radio receiver featuring selective calling function
JPS56134842A (en) * 1980-03-25 1981-10-21 Matsushita Electric Ind Co Ltd Alarm broadcasting receiver

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 2, Nr. 153 (E-78)[9845], Januar 1979, Seite 9845 E 78; & JP-A-53 121 509 (TOKYO SHIBAURA DENKI) 24-10-1978 *
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 12 (E-91)[890], 23. Januar 1982, Seite 890 E 91; & JP-A-56 134 842 (MATSUSHITA DENKI SANGYO K.K.) 21-10-1981 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726554A1 (en) * 1995-02-08 1996-08-14 Peter A. Hochstein Traffic information system using light emitting diodes
EP1011084A2 (en) * 1995-02-08 2000-06-21 Peter A. Hochstein Traffic information system using light emitting diodes
EP1011084A3 (en) * 1995-02-08 2002-10-16 Peter A. Hochstein Traffic information system using light emitting diodes

Also Published As

Publication number Publication date
DE8816300U1 (en) 1989-04-20
ATE98069T1 (en) 1993-12-15
ES2046340T3 (en) 1994-02-01
EP0328985A3 (en) 1991-01-23
US5060300A (en) 1991-10-22
DE58906268D1 (en) 1994-01-13
JP2865691B2 (en) 1999-03-08
JPH01248832A (en) 1989-10-04
DE3805191A1 (en) 1989-08-31
EP0328985B1 (en) 1993-12-01

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