EP0456080A2 - Procédé et circuit pour afficher des signaux d'entrées différents - Google Patents

Procédé et circuit pour afficher des signaux d'entrées différents Download PDF

Info

Publication number: EP0456080A2
Authority: EP; European Patent Office
Prior art keywords: control signal; input signal; circuit; control; threshold value
Prior art date: 1990-05-11
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

EP91106956A

Other languages

German (de)

English (en)

Other versions

EP0456080A3 (en

EP0456080B1 (fr

Inventor

Rudolf Dipl.-Ing. Zeitschek

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.)

Siemens AG Oesterreich

Original Assignee

Siemens AG Oesterreich

Siemens AG

Siemens Corp

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.)

1990-05-11

Filing date

1991-04-29

Publication date

1991-11-13

1991-04-29 Application filed by Siemens AG Oesterreich, Siemens AG, Siemens Corp filed Critical Siemens AG Oesterreich

1991-11-13 Publication of EP0456080A2 publication Critical patent/EP0456080A2/fr

1993-06-16 Publication of EP0456080A3 publication Critical patent/EP0456080A3/de

1996-09-11 Application granted granted Critical

1996-09-11 Publication of EP0456080B1 publication Critical patent/EP0456080B1/fr

2011-04-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
- G08B29/02—Monitoring continuously signalling or alarm systems

Definitions

the invention relates to a method for displaying three different input signal states, "ON”, “OFF” and “FLASHING", with a single signaling element such as a lamp or a bell, preferably for the control room of an electrical system, in which one, by means of a Electrical control signal derived from the input signal states controls the signaling device in such a way that it is switched on when the input signal state is "ON”, is switched off when the input signal state is “OFF” and is cyclically switched over when the input signal state is "FLASHING", and for monitoring of the input signal states by means of two threshold value circuits also controlled by the electrical control signal and with an evaluation circuit.
the invention further relates to a circuit arrangement for carrying out the method.
DE A1 33 46 527 discloses a method and an arrangement for fail-safe alarm evaluation of an alarm line. Therefore, the deviation from the idle value of a zone is determined using a window discriminator (FD). It is irrelevant whether this deviation is positive or negative.
the subject of DE A1 31 47 742 contains a circuit arrangement for monitoring the occurrence of an alarm signal on a signal line. It essentially consists of two comparators that are connected to the signaling line. Both documents have in common that only a single output signal is derived from the signal state of the signaling line (signaling line).
the invention has for its object to use a control signal multiple times.
the method mentioned in the introduction is developed in such a way that four different control signal levels are formed from the three input signal states in such a way that the highest of the four control signal levels for the input signal state "ON” and the lowest of the four control signal levels for the input signal state "OFF” and for the input signal state "FLASHING", the two further control signal levels, which are in value between the lowest and the highest control signal level, are provided, and that the signaling device is switched on by means of one of the two higher control signal levels, and the signaling device is switched off by means of one of the two lower control signal levels, and that the first threshold circuit outputs a first output signal when the highest of the four control signal levels occurs and the second threshold circuit outputs a second output signal when the lowest of the four control signal levels occur, and that the instantaneous input signal state is determined by logically combining the two output signals of the threshold value circuits by means of an evaluation circuit.
two control signals are derived from a control signal that represents three different signal states. These are the output or signal of the signaling device, for example an acoustic or optical signal and the electrical output or monitoring signal of the evaluation circuit.
An advantageous circuit arrangement for carrying out the method is constructed in such a way that the signaling device and the two threshold value circuits are connected in parallel to one another on the output side of the control device, and that the first threshold value circuit has a first threshold value, the value of which lies between the highest of the four control signal levels and the second highest control signal level, that the second threshold circuit has a second threshold whose value lies between the lowest of the four control signal levels and the second lowest control signal level, and that the two outputs of the threshold circuits are connected to the two inputs of the evaluation circuit, which have at their output a signal corresponding to the input signal states of the control device delivers.
Each threshold value output combination thus clearly represents an input signal state, and the "FLASHING" state is thus also distinguished from the other two states at all times.
FIG. 2 shows a diagram of an exemplary course of the level of the electrical control signal in a circuit according to FIG. 1.
the diagram is divided into three different time periods T1, T2, T3.
the lowest control signal level U1 is present during the first period T1. This causes the message organ 2 to be switched off.
the second lowest control signal level U2 and the second highest control signal level U3 are switched cyclically, the signaling device 2 "flashes".
the signaling device is switched on by the highest control signal level U4.
a first threshold value S1 lies between the highest control signal level U4 and the second highest control signal level U3.
a second threshold value S2 lies between the second lowest control signal level U2 and the lowest control signal level U1.
this second threshold value S2 it is possible to distinguish between the input signal state "OFF” and the two other input signal states “FLASHING” and "ON”.

Landscapes

Engineering & Computer Science (AREA)
Computer Security & Cryptography (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Electronic Switches (AREA)
Arrangements For Transmission Of Measured Signals (AREA)
Circuit Arrangement For Electric Light Sources In General (AREA)
Cookers (AREA)
Emergency Alarm Devices (AREA)
Testing And Monitoring For Control Systems (AREA)
Time-Division Multiplex Systems (AREA)
Electric Clocks (AREA)

EP91106956A 1990-05-11 1991-04-29 Procédé et circuit pour afficher des signaux d'entrées différents Expired - Lifetime EP0456080B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
AT1046/90		1990-05-11
AT0104690A AT398859B (de)	1990-05-11	1990-05-11	Schaltung für die überwachung und betätigung eines meldeorgans

Publications (3)

Publication Number	Publication Date
EP0456080A2 true EP0456080A2 (fr)	1991-11-13
EP0456080A3 EP0456080A3 (en)	1993-06-16
EP0456080B1 EP0456080B1 (fr)	1996-09-11

Family

ID=3505417

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91106956A Expired - Lifetime EP0456080B1 (fr)	1990-05-11	1991-04-29	Procédé et circuit pour afficher des signaux d'entrées différents

Country Status (9)

Country	Link
EP (1)	EP0456080B1 (fr)
AT (2)	AT398859B (fr)
DE (1)	DE59108160D1 (fr)
DK (1)	DK0456080T3 (fr)
DZ (1)	DZ1500A1 (fr)
ES (1)	ES2094167T3 (fr)
GR (1)	GR3021921T3 (fr)
MA (1)	MA22148A1 (fr)
TN (1)	TNSN91034A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0562960A1 (fr) *	1992-03-27	1993-09-29	Cegelec	Appareil de surveillance et d'alarme pour installation de contrôle/commande

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3944921A (en) *	1970-12-11	1976-03-16	Canon Kabushiki Kaisha	Logic level test probe with grated oscillator
JPS49125066A (fr) *	1973-01-27	1974-11-29
GB1447291A (en) *	1973-08-04	1976-08-25	Honeywell Ltd	Logic level testers
DE2350362B2 (de) *	1973-10-08	1975-07-31	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Grenzwertmelder für impulsbetriebene Schaltungen
DE2451872C2 (de) *	1974-10-31	1976-10-21	Siemens Ag	Schaltungsanordnung zur pegelueberwachung
DE2455656B1 (de) *	1974-11-25	1975-09-11	Siemens Ag	Schwellwertstufe
DE2729108C3 (de) *	1977-06-28	1980-03-13	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Schaltungsanordnung zur Erkennung von Taktsignalen und zur Umwandlung in digitale Dauersignale
US4307389A (en) *	1980-04-25	1981-12-22	Ford Motor Company	Decoding circuit
DE3147742A1 (de) *	1981-12-02	1983-06-09	Siemens AG, 1000 Berlin und 8000 München	Schaltungsanordnung zum ueberwachen des auftretens eines alarmsignals auf einer meldeleitung
DE3346527A1 (de) *	1983-12-22	1985-07-04	Siemens AG, 1000 Berlin und 8000 München	Verfahren und anordnung zur stoerungssicheren alarmauswertung einer meldelinie einer gefahrenmeldeanlage

1990
- 1990-05-11 AT AT0104690A patent/AT398859B/de not_active IP Right Cessation
1991
- 1991-04-29 DK DK91106956.5T patent/DK0456080T3/da not_active Application Discontinuation
- 1991-04-29 AT AT91106956T patent/ATE142809T1/de not_active IP Right Cessation
- 1991-04-29 DE DE59108160T patent/DE59108160D1/de not_active Expired - Fee Related
- 1991-04-29 ES ES91106956T patent/ES2094167T3/es not_active Expired - Lifetime
- 1991-04-29 EP EP91106956A patent/EP0456080B1/fr not_active Expired - Lifetime
- 1991-05-06 MA MA22418A patent/MA22148A1/fr unknown
- 1991-05-08 DZ DZ910056A patent/DZ1500A1/fr active
- 1991-05-10 TN TNTNSN91034A patent/TNSN91034A1/fr unknown
1996
- 1996-12-05 GR GR960403325T patent/GR3021921T3/el unknown

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0562960A1 (fr) *	1992-03-27	1993-09-29	Cegelec	Appareil de surveillance et d'alarme pour installation de contrôle/commande
FR2689279A1 (fr) *	1992-03-27	1993-10-01	Cegelec	Appareil de surveillance et d'alarme pour installation de contrôle/commande.

Also Published As

Publication number	Publication date
DZ1500A1 (fr)	2004-09-13
ATE142809T1 (de)	1996-09-15
EP0456080A3 (en)	1993-06-16
ES2094167T3 (es)	1997-01-16
ATA104690A (de)	1994-06-15
MA22148A1 (fr)	1991-12-31
AT398859B (de)	1995-02-27
TNSN91034A1 (fr)	1992-10-25
DK0456080T3 (fr)	1997-02-17
EP0456080B1 (fr)	1996-09-11
GR3021921T3 (en)	1997-03-31
DE59108160D1 (de)	1996-10-17

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