WO1980000210A1 - Procede d'identification dans des systemes agissant a distance en 2 communication collective - Google Patents

Procede d'identification dans des systemes agissant a distance en 2 communication collective Download PDF

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Publication number
WO1980000210A1
WO1980000210A1 PCT/CH1979/000093 CH7900093W WO8000210A1 WO 1980000210 A1 WO1980000210 A1 WO 1980000210A1 CH 7900093 W CH7900093 W CH 7900093W WO 8000210 A1 WO8000210 A1 WO 8000210A1
Authority
WO
WIPO (PCT)
Prior art keywords
spontaneous
sub
stations
substations
central station
Prior art date
Application number
PCT/CH1979/000093
Other languages
German (de)
English (en)
Inventor
J Guzmanedery
W Bizer
Original Assignee
Bbc Brown Boveri & Cie
J Guzmanedery
W Bizer
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 Bbc Brown Boveri & Cie, J Guzmanedery, W Bizer filed Critical Bbc Brown Boveri & Cie
Publication of WO1980000210A1 publication Critical patent/WO1980000210A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Definitions

  • the invention relates to an identification method in telecontrol systems in community traffic, in which a general request is sent from a central station within a cycle for spontaneous information and a feedback from the substation takes place.
  • the central office calls to all sub-stations whether there is spontaneous information.
  • Spontaneous information is understood to mean messages that must be transmitted spontaneously and immediately according to their meaning. This spontaneous information, which is only very sporadically available, must therefore be identified from the large number of substations.
  • the object of the invention is therefore to promptly and reliably query all substations whether and where there is sptane information. After a general call to all sub-stations and the determination of spontaneous information, there should be a specific query with high priority.
  • the transmission level is briefly switched on and off in succession for all the substations and only the substations with spontaneous data do not respond to this call.
  • the control center evaluates the transient impulses resulting from the short-term switching on and off of the transmission level and specifically queries the sub-stations with the spontaneous data.
  • the rapid recognition of spontaneous information is advantageous in the method according to the invention.
  • pulses instead of telegrams during the transmission, a substantial simplification could be achieved, because the previous bit pattern of the telegrams is converted into a pulse, which is evaluated in a discriminator in the central office.
  • the transmitter of the substation is briefly switched on and off in an advantageous manner.
  • a control unit (not shown) carries out a general query with a request telegram A via a control channel S to substations US1, US2, USJ, US4.bis to USn which are only symbolically indicated. If there is no spontaneous information in the first substation US1, the transmitter (not shown) of this substation reacts with a short oscillation until the transmission level is reached and then switches off again. No spontaneous information is available in the next substation US 2 either, so that the transmitter (not shown) of this substation swings up briefly. Spontaneous information Inf is only available at substation US3. The transmitter of this substation does not vibrate, but remains in the idle position. At the substation US4 there is again no spontaneous information, so that this transmitter oscillates.
  • a sequence of impulses which represent a statement about the presence or absence of spontaneous information in the substations, therefore goes to the monitoring channel to the control center. So, as with the known methods, telegrams do not go from each substation back to the control center, but only short pulses correspond to the response time of the transmitter in the substation. In a receiver, not shown, of the control center, these pulses are converted into digital pulses according to FIG. 1b in a discriminator, not shown, so that there is a clear recognition of the spontaneous information in the transmitter.
  • L-pulses mean no spontaneous information and 0-pulses indicate spontaneous information. The content of this spontaneous information can now be queried in a targeted query to the substations with the spontaneous information.

Abstract

Dans des systemes agissant a distance avec une transmission de donnees entre une centrale et plusieurs sous-stations (US1...USn), des annonces spontanees doivent etre transmises de ces sous-stations, de preference apres une interrogation, a la centrale. On vise a obtenir l'interrogation sure et a court terme de toutes les sous-stations sur la presence d'annonces spontanees avec l'interrogation successive et adressee des sous-stations ayant lesdites annonces spontanees, Apres l'appel collectif depuis la centrale, on effectue dans un bref delai, aupres de toutes les sous-stations de la serie et selon le niveau de transmission, une mise en et hors circuit, a laquelle seules les sous-stations (US3) ayant une annonce spontanee ne reagissent pas. La centrale interprete les impulsions transitoires resultant de la mise en et hors circuit du niveau de transmission comme une interrogation adressee.
PCT/CH1979/000093 1978-07-08 1979-06-21 Procede d'identification dans des systemes agissant a distance en 2 communication collective WO1980000210A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782830097 DE2830097A1 (de) 1978-07-08 1978-07-08 Identifikationsverfahren bei fernwirksystemen im gemeinschaftsverkehr
DE2830097 1978-07-08

Publications (1)

Publication Number Publication Date
WO1980000210A1 true WO1980000210A1 (fr) 1980-02-07

Family

ID=6043894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1979/000093 WO1980000210A1 (fr) 1978-07-08 1979-06-21 Procede d'identification dans des systemes agissant a distance en 2 communication collective

Country Status (3)

Country Link
EP (1) EP0016032A1 (fr)
DE (1) DE2830097A1 (fr)
WO (1) WO1980000210A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2908629C2 (de) * 1979-03-06 1985-10-17 Brown, Boveri & Cie Ag, 6800 Mannheim Aufrufverfahren für Fernwirksysteme im Gemeinschaftsverkehr

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH491574A (de) * 1969-06-20 1970-05-31 Landis & Gyr Ag Im Aufrufbetrieb arbeitende digitale Fernwirkanlage mit einer Zentralstelle und mehreren Unterstellen
US3652993A (en) * 1970-07-24 1972-03-28 Bell Telephone Labor Inc Rapid polling method for digital communications network
DE2536161A1 (de) * 1975-08-13 1977-02-17 Siemens Ag Fernwirkeinrichtung mit einer zentralstation und einer vielzahl von unterstationen
DE2740620A1 (de) * 1976-09-14 1978-03-16 Honeywell Inc Adressierverfahren und einrichtung zur durchfuehrung des verfahrens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH491574A (de) * 1969-06-20 1970-05-31 Landis & Gyr Ag Im Aufrufbetrieb arbeitende digitale Fernwirkanlage mit einer Zentralstelle und mehreren Unterstellen
US3652993A (en) * 1970-07-24 1972-03-28 Bell Telephone Labor Inc Rapid polling method for digital communications network
DE2536161A1 (de) * 1975-08-13 1977-02-17 Siemens Ag Fernwirkeinrichtung mit einer zentralstation und einer vielzahl von unterstationen
DE2740620A1 (de) * 1976-09-14 1978-03-16 Honeywell Inc Adressierverfahren und einrichtung zur durchfuehrung des verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Brown Boveri Mitteilungen, Band 54, No. 4, April 1967, Baden, Funk "Datenaustausch- und Steuer-Anlage (DASA)", Seiten 206 bis 210 siehe Seite 207, rechte Spalte, Zeile 3 bis Seite 208, linke Spalte, Zeile 4; Figuren 2 und 3. *

Also Published As

Publication number Publication date
DE2830097A1 (de) 1980-01-17
EP0016032A1 (fr) 1980-10-01

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