DE3207425A1 - Demand transmission of supplementary functions for reducing bandwidth in PCM radio control systems - Google Patents

Demand transmission of supplementary functions for reducing bandwidth in PCM radio control systems

Info

Publication number
DE3207425A1
DE3207425A1 DE19823207425 DE3207425A DE3207425A1 DE 3207425 A1 DE3207425 A1 DE 3207425A1 DE 19823207425 DE19823207425 DE 19823207425 DE 3207425 A DE3207425 A DE 3207425A DE 3207425 A1 DE3207425 A1 DE 3207425A1
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DE
Germany
Prior art keywords
control systems
channels
radio control
supplementary functions
bandwidth
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Withdrawn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
DE19823207425
Other languages
German (de)
Inventor
Werner Ing.(grad.) 3280 Bad Pyrmont Meinberg
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 DE19823207425 priority Critical patent/DE3207425A1/en
Publication of DE3207425A1 publication Critical patent/DE3207425A1/en
Withdrawn legal-status Critical Current

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • G08C15/12Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division the signals being represented by pulse characteristics in transmission link

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)

Abstract

In this type of transmission, supplementary functions of remote radio controller (e.g. channel 4-8) are transmitted only if there is a change in information with respect to the preceding cycle in the respective channel. Since, as a rule, channels 1-3 handle a large proportion of the control work of a remote radio controller, only these channels are still cyclically transmitted. The saving in bandwidth makes it possible to work with a wide frequency modulation shift within the regulations set by the Post Office. This results in optimum protection against interference.

Description

Beschreibungdescription

Titel: Bedarfsweise Übertragung von Zusatzfunktionen zur Bandbreitenreduzierung bei PCM - Funkleitsystemen.Title: If necessary, transfer of additional functions to reduce bandwidth for PCM radio control systems.

Anwendung: Die Erfindung der bedarfsweisen Übertragung von Zusatzfunktionen zur Bandbreitenreduzierung wird angewendet bei PCM-Funkleitsystemen zur Fernsteuerung von Modellen.Application: The invention of the need-based transfer of additional functions to reduce bandwidth is used in PCM radio control systems for remote control of models.

Zweck: Im Hobbybereich stehen für jeden Fernsteuerkanal 10 kHz Bandbreite zur Verfügung. Um eine störsichere Übertragung bei Frequenzmodulation zu erreichen, sollten möglichst niederfrequente Signale mit einem großen Hub gesendet werden. Da bei der PCM-Modulation wegen der codierten Übertragung in in der zur Verfügung stehenden Bandbreite ein größerer Informationsgehalt übermittelt werden muß, sollten nur wesentliche Informationen gesendet werden.Purpose: In the hobby sector, there is a 10 kHz bandwidth for each remote control channel to disposal. To achieve interference-free transmission with frequency modulation, Signals that are as low-frequency as possible should be sent with a large stroke. As with PCM modulation because of the coded transmission in the available standing bandwidth a larger information content must be transmitted only essential information is sent.

Wir gehen davon aus, daß bei der Fernsteuerung von Modellen die Kanäle 1-3 den Hauptanteil der Übertragungsarbeit leisten. We assume that when remotely controlling models, the channels 1-3 do most of the transference work.

Deshalb werden sie weiterhin zyklisch übertragen. Für die Funktionen 4-8 (Zusatzfunktionen) ist diese zyklische Übertragung nicht sinnvoll, da hierdurch die Bandbreite unnötig vergrößert wird. Hierbei ist es nicht relevant, ob Kanal 4-8 oder 5-10 oä. als Zusatzfunktion angesehen wird. That is why they will continue to be transmitted cyclically. For the functions 4-8 (additional functions), this cyclical transfer is not useful because it means the bandwidth is increased unnecessarily. It is not relevant here whether channel 4-8 or 5-10 or the like. is viewed as an additional function.

Stand der Für die bislang im Handel befindlichen Funkfernsteuerungen Technik: mit Pulslängenmodulation der Informationen sind derartige Überlegungen unnötig, da eine codierte Signalübertragung mit entsprechend umfangreichem Informationsgehalt nicht erfolgt. Diese Systeme sind ohnehin extrem störanfällig, da ein Minimum an Information mit großer Bandbreite übertragen werden muß (steile Flanken der Pulslängenimpulse).Status of For the radio remote controls currently on the market Technology: with pulse length modulation of the information are such considerations unnecessary, since a coded signal transmission with a correspondingly extensive information content not happened. These systems are extremely prone to failure anyway, as there is a minimum of Information must be transmitted with a large bandwidth (steep edges of the pulse length pulses).

Aufgabe: Der Erfindung liegt die Aufgabe zugrunde, unter den gegebenen - auch postalischen - Voraussetzungen ein Fernsteuersystem zu schaffen, das ein Maximum an Störsicherheit aufweist.Task: The invention is based on the task under the given - also postal - requirements to create a remote control system that a Has maximum immunity to interference.

Lösung: 1.Die Aufgabe wird erfindungsmäßig dadurch gelöst, daß nur die Kanäle 1-3 zyklisch übertragen werden, die Kanäle 4-8 jedoch nur nach Bedarf. Der Bedarf wird festgestellt, indem bei jedem Zyklus sämtliche Kanäle auf Änderungen zum Vorzyklus überprüft werden. Ein veränderter Kanal zustand wird registriert und mit einer Adresse versehen auf den Übertragungsweg geschickt. Liegen keine Änderungen vor, wird grundsätzlich Kanal 4 übertragen. Liegen gleichzeitige Änderungen auf mehreren Kanälen vor, wird zuerst der Kanal mit der niedrigsten Adresse übertragen. Das komplizierte Verfahren des Ist-- Wert - Vergleiches mit dem letzten Zykluswert, sowie die Entscheidung, welcher Kanal übertragen wird inkl. Adressenzuordnung, übernimmt ein moderner Mikroprozessor.Solution: 1. The object is achieved according to the invention in that only channels 1-3 are transmitted cyclically, but channels 4-8 only as required. The need is determined by checking all channels for changes at each cycle to be checked for the previous cycle. A changed channel status is registered and sent on the transmission path provided with an address. There are no changes before, channel 4 is always transmitted. There are simultaneous changes If there are several channels, the channel with the lowest address is transmitted first. The complicated process of comparing the actual value with the last cycle value, as well as the decision as to which channel is transmitted including address assignment a modern microprocessor.

Erzielbare Durch dieses System der Prioritätensetzung ergibt sich eine Vorteile hohe Ersparnis an Bandbreite. Gleichbleibende Informationen werden bei Kanal 4-8 nicht mehr übertragen. Dadurch ist es möglich - innerhalb der postalischen Auflagen - mit einem Verhältnismäßig großen FM-Hub zu arbeiten. Die Störsicherheit, die mit der PCM-Übertragung zu erreichen ist, wird dadurch optimiert.Achievable by this system of priority setting results one of the advantages is high bandwidth savings. Consistent information will be no longer transmitted on channels 4-8. This makes it possible - within the postal Requirements - to work with a relatively large FM hub. The interference immunity, that can be achieved with PCM transmission is optimized in this way.

Beschreibung Die Erfindung ist in der digicont-PCM-Funkfernsteuerung der eines Ausfüh- Fa. Werner Meinberg Hohenborner Str. 14 3280 Bad Pyrmont rungsbeispiels bereits zum größten Teil verwirklicht. (Prospekt liegt bei).Description The invention is in the digicont PCM radio remote control that of an execution example. Werner Meinberg Hohenborner Str. 14 3280 Bad Pyrmont already largely realized. (Prospectus is attached).

FM - Frequenzmodulation PCM - Puls-Code-Modulation FM - frequency modulation PCM - pulse code modulation

Claims (1)

Patentanspruch! Oberbegriff: Bedarfsweise Übertragung von Zusatzfunktionen zur Bandbreitenreduzierung bei Puls-Code-Modulation-Funkleitsystemen zur Fernsteuerung von Modellen.Claim! Generic term: If necessary, transfer of additional functions for bandwidth reduction in pulse code modulation radio control systems for remote control of models. Kennzeichnender Teil: dadurch gekennzeichnet, daß beider bedarfsweisen Übertragung von Zusatzfunktionen z.B. die Kanäle 4 bis 8 einer Funkfernsteuerung nur bei Informationsänderung zum Vorzyklus übertragen werden und somit das gleiche Telegramm wie im Vorzyklus nicht ständig wiederholt wird. Es gelingt auf diese Weise, beim Informationstelegramm Bandbreite einzusDaren.Characteristic part: characterized in that both are as required Transmission of additional functions, e.g. channels 4 to 8 of a radio remote control are only transferred when information changes to the previous cycle and thus the same Telegram is not repeated continuously as in the previous cycle. In this way it is possible to save bandwidth for the information telegram.
DE19823207425 1982-03-02 1982-03-02 Demand transmission of supplementary functions for reducing bandwidth in PCM radio control systems Withdrawn DE3207425A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823207425 DE3207425A1 (en) 1982-03-02 1982-03-02 Demand transmission of supplementary functions for reducing bandwidth in PCM radio control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823207425 DE3207425A1 (en) 1982-03-02 1982-03-02 Demand transmission of supplementary functions for reducing bandwidth in PCM radio control systems

Publications (1)

Publication Number Publication Date
DE3207425A1 true DE3207425A1 (en) 1983-09-08

Family

ID=6157081

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823207425 Withdrawn DE3207425A1 (en) 1982-03-02 1982-03-02 Demand transmission of supplementary functions for reducing bandwidth in PCM radio control systems

Country Status (1)

Country Link
DE (1) DE3207425A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714152A1 (en) * 1997-02-11 1998-08-13 Itt Mfg Enterprises Inc Method for transmitting data in pulse pauses of a speed signal and circuit arrangement for carrying out the method
DE19807565A1 (en) * 1998-02-23 1999-08-26 Meid Data transmission method and device for stage lighting installation or show effect

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714152A1 (en) * 1997-02-11 1998-08-13 Itt Mfg Enterprises Inc Method for transmitting data in pulse pauses of a speed signal and circuit arrangement for carrying out the method
DE19807565A1 (en) * 1998-02-23 1999-08-26 Meid Data transmission method and device for stage lighting installation or show effect

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