DE2845718A1 - Alarm transmission system using binary coded radio signal - with 16 pulses of varying widths representing 4 characters - Google Patents

Alarm transmission system using binary coded radio signal - with 16 pulses of varying widths representing 4 characters

Info

Publication number
DE2845718A1
DE2845718A1 DE19782845718 DE2845718A DE2845718A1 DE 2845718 A1 DE2845718 A1 DE 2845718A1 DE 19782845718 DE19782845718 DE 19782845718 DE 2845718 A DE2845718 A DE 2845718A DE 2845718 A1 DE2845718 A1 DE 2845718A1
Authority
DE
Germany
Prior art keywords
pulses
characters
transmission
information
decoder
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Withdrawn
Application number
DE19782845718
Other languages
German (de)
Inventor
Helmar Grimm
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19782845718 priority Critical patent/DE2845718A1/en
Publication of DE2845718A1 publication Critical patent/DE2845718A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Alarm Systems (AREA)

Abstract

The signal transmission system transmits four separate characters. The first three characters may comprise the authorisation or selection address for the decoder, while the fourth character provides the specific alarm information. The coder supplying the coded pulses is incorporated in the alarm detector, while the decoder is incorporated in the central alarm control. Pref. the coder comprises a clock pulse generator, coupled to a counter, a parallel/series converter and a coupling logic. The coder is coupled to an h.f. transmitter, which employs a.m. or f.m. modulation. The decoder comprises a series/parallel converter, a validity checking circuit, a pulse counter, a check register, a store and logic. The central alarm control may have sixteen incoming channels.

Description

Einrichtung zur drahtlosen Übertragung vonDevice for the wireless transmission of

Informationen, speziell zur drahtlossen Alarmübertragung Die Erfindung betrifft eine Codier- und Decoidereinrichtung speziell zur Realisierung der für drahtlose Alarmsysteme geforderten hohen Sicherheitsbedürfnisse. Alarmsysteme der Art, die als Signalübertragung die Funkverbindung benutzen, werden in vielfacher Art gebaut. Aber sie können entweder keine FTZ-Nummer erreichen oder sind für ihre Funktionen zu aufwendig und dadurch zu störempfindlich. Solche Anlagen weisen große Nachteile auf und entsprechen nicht den im Einsatz geforderten Eigenschaften.Information, especially for wireless alarm transmission The invention relates to a coding and decoder device specifically for implementing the for wireless alarm systems required high security requirements. Alarm systems of Kinds that use the radio link as signal transmission are in multiple Kind of built. But they either cannot reach an FTZ number or are for theirs Functions too complex and therefore too sensitive to interference. Such plants have great Disadvantages and do not correspond to the properties required in use.

Die Übertragungseinheit nach der Erfindung, bestehend aus Codier- und Decodiereinheit, erfüllt alle für solche Systeme notwendigen Anforderungen: Minimaler Aufwand, große übertragungssicherheit, vielfältige Codiermöglichkeit und - bedingt durch die komplizierte Codierung - absoluter Ausschluß von Fehlalarm. Erfindungsgemäß wird ein Digitalsignal, bestehend aus 16 Einzelimpulsen, mit einer geeigneten Schaltung erzeugt, wobei die Wertigkeit der Impulse durch dünne und dicke Impulse definiert wird. Eine Impulsyruppe von It) Einzelimpulsen erzeugt demnach 4 Ziffern entsprechend den Informationsgehalt aussagenden Werten.The transmission unit according to the invention, consisting of coding and decoding unit, fulfills all requirements necessary for such systems: Minimal effort, high transmission security, diverse coding options and - due to the complicated coding - absolute exclusion of false alarms. According to the invention, a digital signal consisting of 16 individual pulses with a suitable circuit generated, the valence of the pulses by thin and thick Impulse is defined. A pulse group of It) individual pulses is generated accordingly 4 digits according to the information content indicative values.

Die Codiereinheit besteht im wesentlichen aus einem Taktgenerator, ei einem Taktzäh I er, ei einem Para I I eI -Ser i e I I -Wand | er und entsprechend miteinander verknüpfter Logik. Die Decodiereinheit besteht im wesentlichen aus einem Sericil-Parallel-Wandler, einem Wertigkeitsprüfer, Impulszähler, Prüfregister, Speicher und logischen Bauteilen. Erfindungsgemäß ist nun die Codiereinheit mit einem Hf-Sender kombiniert und prägt diesem das definierte Logik-Signal entweder in AM- oder FM-Modulation auf. Erfindungsgemäß ist dieser Codierer und Sender in einer Alarmnebenstelle direkt intcyricrt bzw. eingebaut. Die Decodiereinheit erhält somit über die Antenne vom Empfänger ein Signal, das geprüft und verarbeitet wird.The coding unit essentially consists of a clock generator, a clock counter, a Para I I eI -Seri e I I -wall | he and accordingly interrelated logic. The decoding unit consists essentially from a Sericil-parallel converter, a valuation tester, pulse counter, test register, Memory and logical components. According to the invention, the coding unit is now with combined with an RF transmitter and either stamps the defined logic signal on it in AM or FM modulation. According to the invention, this encoder and transmitter is in an alarm extension unit directly intcyricrt or built-in. The decoding unit receives thus a signal from the receiver via the antenna, which is checked and processed.

Erfindungsgemäß ist die Decodiereinheit mit weitcren logischen Baugruppen derart verkniipft, daß daraus einc iiberwachunyszentrale mit 16 Kanälen entsteht.According to the invention, the decoding unit is provided with further logical assemblies linked in such a way that a monitoring center with 16 channels is created.

Der Übertragungsmodus besteht aus drei Ziffern für die Anwahl der entsprechenden Adresse und einer Ziffer für die Definition der Übertragungsinformation. Nur wenn diese vom Codierer ausgestrahlte Adresse mit der vorgewähiten Adresse des Decodierers identisch ist, wird die mitgetragene Information verarbeitet. Die Übertragungszeit solcher Systeme, abhängig von der Trägerfrequenz, kann zwischen ImSek. bis zu 1Sek. gewählt werden. Da die Impulszahl definiert immer die gleiche und vom Informationsgehalt unabhängig ist, kennen zusätzliche Zeit und Zähikontrollen des Signals erfolgen.The transmission mode consists of three digits for selecting the corresponding address and a number for the definition of the transmission information. Only if this address broadcast by the encoder matches the preselected address of the Decoder is identical, the information carried along is processed. The transmission time such systems, depending on the carrier frequency, can be between ImSek. up to 1sec. to get voted. Because the number of pulses always defines the same and of the information content is independent, know additional time and count controls of the signal are done.

L e e r s e i t eL e r s e i t e

Claims (4)

Patentansprüche 1.0 Einrichtung zur draht losen Übertragung von Informationen, speziell zur drahtlosen Alarmübertragung dadurch gekennzeichnet, daß mit einer entsprechenden elektronischen Einrichtung 16 Impulse erzeugt werden, wobei die Impulse unterschiedliche Beiten haben und somit die Wertigkeit 0 und 1 des Binärcodes zusammensetzen und insgesamt einen Informationsgehalt von 4 Ziffern .erzeugen bzw. darstellen.Claims 1.0 device for wireless transmission of information, especially for wireless alarm transmission, characterized in that with a corresponding Electronic device 16 pulses are generated, the pulses being different Have Beiten and thus combine the valency 0 and 1 of the binary code and generate or represent an information content of 4 digits in total. 2. Einrichtung zur drahtlosen Übertragung von Informationen, speziell zur drahtlosen Alarmübertragung nach Anspruch 1 dadurch gekennzeichnet, daß aus 16 Impulsen mit der Wertigkeit 0 und 1 vier Ziffern erzeugt werden, wobei die ersten drei Ziffern die Berechtigung bzw. Selektrionsadresse fiir die Decodiereinheit darstellen und die vier Ziffern den Informationsintlalt mitf;ihrcn. 2. Device for the wireless transmission of information, especially for wireless alarm transmission according to claim 1, characterized in that from 16 pulses with the valency 0 and 1 four digits are generated, the first being three digits represent the authorization or selection address for the decoding unit and the four digits include the information content. 3. Einrichtung zur drahtlosen Übertragung von Informationen, speziell zur drahtlosen Alarmübertragung nach Anspruch 1 und 2 dadurch gekennzeichnet, daß zur Übertragung ein Codierer mit Sender und ein Decodierer mit Empfänger verwendet werden, die die 16 definierten Impulse oder eine Vielzahl davon erzeugen und auswerten können.3. Device for the wireless transmission of information, specifically for wireless alarm transmission according to Claims 1 and 2, characterized in that an encoder with a transmitter and a decoder with a receiver are used for transmission that generate and evaluate the 16 defined pulses or a large number of them can. 4. Einrichtung zur drahtlosen Übertragung von Informationen, speziell zur drahtlosen Alarmübertragung nach Anspruch 1, 2 und 3 dadurch gekennzeichnet, daß die Codiereinheit in Alarmnebenmelder integriert und die Decodiereinheit -verknüpft mit weiteren logischen Rauyruppen - in die Aldrmzentrale integriert wird.4. Device for the wireless transmission of information, especially for wireless alarm transmission according to claim 1, 2 and 3, characterized in that that the coding unit is integrated in secondary alarm alarms and linked to the decoding unit with further logical Rauyruppen - is integrated into the Aldrmzentrale.
DE19782845718 1978-10-20 1978-10-20 Alarm transmission system using binary coded radio signal - with 16 pulses of varying widths representing 4 characters Withdrawn DE2845718A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782845718 DE2845718A1 (en) 1978-10-20 1978-10-20 Alarm transmission system using binary coded radio signal - with 16 pulses of varying widths representing 4 characters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782845718 DE2845718A1 (en) 1978-10-20 1978-10-20 Alarm transmission system using binary coded radio signal - with 16 pulses of varying widths representing 4 characters

Publications (1)

Publication Number Publication Date
DE2845718A1 true DE2845718A1 (en) 1980-04-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782845718 Withdrawn DE2845718A1 (en) 1978-10-20 1978-10-20 Alarm transmission system using binary coded radio signal - with 16 pulses of varying widths representing 4 characters

Country Status (1)

Country Link
DE (1) DE2845718A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050299A1 (en) * 1980-10-20 1982-04-28 Gilles Marcel Morey Detection method and system, particularly for surveillance installations or automatisms
EP0116647A1 (en) * 1982-06-08 1984-08-29 Nohmi Bosai Kogyo Co., Ltd. Fire alarm system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050299A1 (en) * 1980-10-20 1982-04-28 Gilles Marcel Morey Detection method and system, particularly for surveillance installations or automatisms
EP0116647A1 (en) * 1982-06-08 1984-08-29 Nohmi Bosai Kogyo Co., Ltd. Fire alarm system
EP0116647A4 (en) * 1982-06-08 1987-07-16 Nohmi Bosai Kogyo Co Ltd Fire alarm system.

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