EP1197936A2 - Système d'alarme - Google Patents

Système d'alarme Download PDF

Info

Publication number: EP1197936A2
Authority: EP; European Patent Office
Prior art keywords: line; detectors; test; processor; test unit
Prior art date: 2000-10-10
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

EP01123041A

Other languages

German (de)

English (en)

Other versions

EP1197936A3 (fr

EP1197936B2 (fr

EP1197936B1 (fr

Inventor

Gerhard Röpke

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.)

Job Lizenz GmbH

Original Assignee

Job Lizenz 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.)

2000-10-10

Filing date

2001-09-26

Publication date

2002-04-17

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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7660027&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1197936(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2001-09-26 Application filed by Job Lizenz GmbH filed Critical Job Lizenz GmbH

2002-04-17 Publication of EP1197936A2 publication Critical patent/EP1197936A2/fr

2003-07-02 Publication of EP1197936A3 publication Critical patent/EP1197936A3/fr

2005-02-02 Application granted granted Critical

2005-02-02 Publication of EP1197936B1 publication Critical patent/EP1197936B1/fr

2008-05-14 Publication of EP1197936B2 publication Critical patent/EP1197936B2/fr

2021-09-26 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
- G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
- G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Definitions

the invention relates to a hazard detection system according to the preamble of Claim 1.
Hazard detection systems for example fire alarm systems, usually have one Larger number of hazard detectors connected to a two-wire alarm line are connected. This can be designed as a stub or as a loop which the individual detectors communicate with a control center. Every detector points a sensor or the like which, depending on parameters of its Environment produces measured values. The measured values are sent to the Control center transmit, which usually the individual detectors cyclically queries. To assign the measured values to the individual detectors , it is necessary to assign an identifier or an address to each detector. The address is stored in the detector's non-volatile memory. in the Processor of the control center, the registration addresses are stored, so that the control center with Use a suitable program to monitor the individual detectors can.
the invention has for its object to provide a hazard alarm system, in which a multitude of errors can be easily identified and localized can, the effort for the test circuit and the measurement effort are minimal.
test circuit arrangement which is part of the headquarters and for example on a special Command of the central control processor the operational state of the network Hazard detection system checked. This is done with the help of at least one test unit, which contains its own test processor in which a test program is stored is.
a switch arrangement controlled by the test processor is also provided for the optional connection of the at least one test unit to the signaling line.
the measuring means are for checking the operational condition of the alarm system in the alarm center integrated, so that in connection with an intelligent evaluation software Installation errors can be detected quickly and effectively.
test circuit arrangement can be used for such errors are provided, with all test units with a test processor are connected. However, this can be provided redundantly.
the test circuit arrangement is a module formed, for example in the form of a plug-in card on which all components of the test circuit arrangement are arranged.
the test circuit arrangement has one Modem connection to check the network via a remote connection. This can take place over the telephone network, for example. With the help of such Possibility can check from a remote location, such as the Place of manufacture of the alarm system. The one in review Results obtained, in particular the errors found, can then read out and transmitted to the remote location via the remote connection. For example, before final commissioning or Acceptance of the alarm system installation errors discovered and rectified become.
a test unit for A constant current source sees the determination of impermissibly large cable lengths before that to the line via a modulator and a controllable switch is switched. With the help of a data word sent by the test processor via a Modulator is generated and which also contains the address of a detector a detector is controlled and a switch in it causes the wires of the line connect to.
the constant current source limits the current on the line a predetermined value, and a voltage measuring device can cover the whole Measure the voltage drop across the shorted section of the line.
the voltage drop caused by the lines depends on the difference of the measured voltage drop and the sum of the voltage drops at the Reporting of the measured section and, if applicable, a measuring resistor via which the Constant current flows to ground. If the voltage drop caused solely by the Line length is determined, is known, the resistance of the line length determine, because the cross-section of the line is known. From the on resistance determined in this way for the lines of the measured section the length of the measured section can therefore also be determined. To this The total length of a line can be determined in this way. It's on the top described way also possible the length of line sections to determine between selected detectors by in the detectors which the Limit the line section, the cross switches are closed one after the other.
the data word to control the individual detectors and to close the Cross switch is preferably voltage modulated according to an embodiment of the invention.
a logic circuit and a are usually located in the detector Demodulator, so that the selected or addressed detector determines when it a command is given to close the cross switch. It can also be a Time switching are provided, which after a predetermined time Cross switch opens again to the line length for another section between detectors.
Lines for the networks described often have a shield in the form a braid or a conductive foil that surrounds the wires of the lines.
Such a shield has a very low resistance. she lies either at ground or at a given potential. It can in particular The area of the detectors during installation happens that one wire shields touched and thereby causes a short circuit. With the help of the test unit for one Such a short-circuit can be determined by so-called shielding monitoring. On This is easily done according to the invention in that the potential of Shielding is monitored via the test processor. Deviates the potential of a predetermined value, there is a contact of a wire with the shield in front.
the monitoring circuits described in some cases have considerable space Dimensions. It is therefore advantageous if it is not only determined whether a There is a short circuit, but also where it is. Therefore looks an embodiment of the invention that the shield via a measuring resistor is connected to a potential source.
the test circuit arrangement shows as already described at the beginning, a constant voltage source. This ensures for the fact that, in the case of the short circuit described, a predetermined, limited amount Current through the line, across the short circuit and the measuring resistor flows. The entire voltage drop essentially consists of the voltage drop from the line sections and the measuring resistor together. How mentioned, the shield hardly contributes to voltage reduction and can are therefore neglected. Because the voltage drop across the measuring resistor is known is the voltage drop caused by the line calculate.
the Determine the resistance of the line section up to the short circuit point Because the cross section and the specific resistance of the veins is therefore known the resistance also calculate the length of the line to the short circuit. These calculations can be carried out in the test processor.
the length of the line from the control center to the short circuit point is already one essential statement that makes it easier to find a short circuit. Yet it is easier if it can be determined between which neighboring ones A short circuit has occurred. In the method described above, lets determine the length of the line sections between the detectors. Are therefore the individual cable lengths saved in the test processor can then be calculated between which detectors the contact between the shield and Wire or short circuit is present
Ring lines are often used in the hazard alarm systems described.
the ends of each with symmetrical circuit arrangements of a center are connected. It is therefore possible to have a ring line from both ends to operate, for example if it is interrupted in the area of the short circuit becomes.
a stub and the other branch line is operated from the other central section.
the detectors in series with on the wire Horizontal isolating switches have to disconnect the cable on both sides a short circuit. In normal operation, the disconnectors are closed however opened on command from the control center. Since the headquarters "knows" between Which detectors are short-circuited can those adjacent to the short-circuit Detectors are controlled to open the disconnector.
FIG. 1 shows a test circuit arrangement which is arranged within a box 10 shown in broken lines.
the test circuit arrangement 10 is part of a control center (not shown further) of a hazard alarm system which has a ring line.
Fig. 1 only the line A of the ring line is shown.
Line A consists of wires 12 and 14, and in the course of line A a series of detectors M to M n is connected.
the detectors M1, M2 and M n are shown. Part of the circuitry of the detectors M is shown in FIG. 2.
a cross switch T3 can be seen, which connects the wires 12, 14 in the closed state.
the voltage supply U STAB with a capacitor C and a diode D can also be seen.
the signaling circuit is also supplied with voltage when the voltage on line A drops briefly or approaches zero.
the detector M also has a modulator / demodulator 16, which converts a voltage pulse on the line line into logic signals for a logic circuit 18.
Logic circuit 18 includes an address memory and multiple input / output lines. It receives a serial data signal (e.g. an address or a command) and executes a command if a received address matches the address stored in the logic circuit 18. This can e.g. B. be the case to operate the cross switch T3 and thus short-circuit the wires 12, 14.
Each detector M has 14 disconnectors on both sides of the cross switch T3 in the wire T1, T2, which are normally closed during the operation of the detectors.
the wires 12, 14 are connected to one another via Zener diodes, which are not specified in any more detail connected so that if the polarity of the detectors is reversed during installation Short circuit arises, which in turn is determined by a short circuit test circuit can be, which will be discussed further below.
the test circuit arrangement 10 has a first test processor 20 and one second test processor 22 (CPU1 or CPU2).
the test processor 20 is via a Interface 24 (COM1) with the central processor, not shown, of the central office for the hazard alarm system in connection.
the test processor 22 is redundant intended.
a constant voltage source 26 (I KA ) is connected to the core 12 via a modulator 28 (MA) and a switch 30 (S 1A ).
the constant voltage source 26 is connected to a voltage supply 32 (U STABA ).
the test processor 20 controls the modulator 28 and the switch 30 to e.g. B. to put a voltage modulated data word on the line when the switch 30 is closed.
Another switch 33 which is also controlled by the test processor 20 (S 2A ), connects the wire 12 to ground when it is closed.
a voltage measuring device 36 (A / D1 A ) is connected to the wire 12 and its output is connected to the test processor 20. The same applies to a voltage measuring device 38 (A / D2 A ) which is connected to the wire 14.
the cores 12, 14 are surrounded by a shield 40, which is indicated by dashed lines in FIG. 1.
the shield 40 is connected to a shield test unit 42, the output of which is connected to the test processor 20. It contains a test resistor 44 (R A ), which is connected to the shield 40 and with the other terminal to the potential U S.
R A test resistor
the shield is connected to the positive input of an operational amplifier 46, the output of which is connected to the test processor 20.
the wire 14 is connected to ground via a measuring resistor 46a (R MA ), the same pole of the resistor 46a, which is connected to the wire 14, being connected to the positive input of an operational amplifier 48, the output of which is connected to the test processor 20.
R MA measuring resistor 46a
z. B the line length of the Determine line A or the wires 12, 14 and also the line lengths between desired detectors M, z. B. between neighboring detectors M.
z. B the line length of the Determine line A or the wires 12, 14 and also the line lengths between desired detectors M, z. B. between neighboring detectors M.
Equation 2 is calculated in the test processor 20 and the result R L (M n ) is stored. This value includes the line resistance between the connection of line A and the detector M n .
the switch T3 in the detector M n is opened again. This is done with the aid of a suitable time circuit, which is accommodated in the detector, for example in the logic module 18. The line voltage goes back to operating potential.
the measured values for the line sections and the entire line can be stored in the test processor 20.
a short circuit between the shield 40 and one of the wires are determined as well as the location of the Short circuit.
the shield 40 consists of a wire mesh or one Foil and is low-resistance and is neglected in the following calculations. Again, a normal operating state is assumed, i. H. Switch 30 is closed and switch 33 is open. Now the short circuit K1 detected and the short-circuit location can be determined.
this line length can also be related to the determined lengths of the line sections between the detectors M1 ... M n . It is therefore easy to determine between which detectors the short circuit lies, ie here between detectors M1 and M2.

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Engineering & Computer Science (AREA)
Computer Security & Cryptography (AREA)
Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Alarm Systems (AREA)
Data Exchanges In Wide-Area Networks (AREA)
Maintenance And Management Of Digital Transmission (AREA)

EP01123041A 2000-10-10 2001-09-26 Système d'alarme Expired - Lifetime EP1197936B2 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE10051329		2000-10-10
DE10051329A DE10051329C2 (de)	2000-10-10	2000-10-10	Gefahrenmeldeanlage

Publications (4)

Publication Number	Publication Date
EP1197936A2 true EP1197936A2 (fr)	2002-04-17
EP1197936A3 EP1197936A3 (fr)	2003-07-02
EP1197936B1 EP1197936B1 (fr)	2005-02-02
EP1197936B2 EP1197936B2 (fr)	2008-05-14

Family

ID=7660027

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP01123041A Expired - Lifetime EP1197936B2 (fr)	2000-10-10	2001-09-26	Système d'alarme

Country Status (5)

Country	Link
US (1)	US6507277B2 (fr)
EP (1)	EP1197936B2 (fr)
CN (1)	CN1157696C (fr)
AT (1)	ATE288605T1 (fr)
DE (2)	DE10051329C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1363261A1 (fr) *	2002-05-17	2003-11-19	Securiton AG	Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode
WO2009087169A1 (fr) *	2008-01-10	2009-07-16	Robert Bosch Gmbh	Dispositif de contrôle pour un système d'alarme, système d'alarme et procédé de contrôle du système d'alarme
WO2012045436A1 (fr) *	2010-10-04	2012-04-12	Novar Gmbh	Procédé servant à faire fonctionner une installation d'annonces orales
EP2437228B1 (fr) *	2010-10-04	2016-08-10	Hekatron Vertriebs GmbH	Alarme, installation d'alarme et procédé de reconnaissance d'erreurs de lignes de transmission

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10234612A1 (de) *	2002-07-30	2004-02-19	Robert Bosch Gmbh	Gefahrenmeldeanlage
EP2051220A1 (fr) *	2007-10-17	2009-04-22	Siemens Building Technologies Fire & Security Products GmbH & Co. oHG	Dispositif de séparation pour accumulateurs d'énergie pour ligne électrique conductrice d'énergie
EP3540706B1 (fr) *	2018-03-14	2020-10-21	Siemens Schweiz AG	Système et procédé d'adressage de dispositifs de sécurité actionnés à distance
DE102019203627A1 (de) *	2019-03-18	2020-09-24	Siemens Healthcare Gmbh	Detektion von Störungen bei der Messung von bioelektrischen Signalen

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US6185191B1 (en) *	1997-12-03	2001-02-06	Harris Corporation	Testing of ISDN line via auxiliary channel signaling
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2000
- 2000-10-10 DE DE10051329A patent/DE10051329C2/de not_active Expired - Fee Related
2001
- 2001-09-26 AT AT01123041T patent/ATE288605T1/de not_active IP Right Cessation
- 2001-09-26 EP EP01123041A patent/EP1197936B2/fr not_active Expired - Lifetime
- 2001-09-26 DE DE50105236T patent/DE50105236D1/de not_active Expired - Lifetime
- 2001-10-10 CN CNB011412275A patent/CN1157696C/zh not_active Expired - Fee Related
- 2001-10-10 US US09/975,439 patent/US6507277B2/en not_active Expired - Lifetime

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1363261A1 (fr) *	2002-05-17	2003-11-19	Securiton AG	Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode
WO2009087169A1 (fr) *	2008-01-10	2009-07-16	Robert Bosch Gmbh	Dispositif de contrôle pour un système d'alarme, système d'alarme et procédé de contrôle du système d'alarme
WO2012045436A1 (fr) *	2010-10-04	2012-04-12	Novar Gmbh	Procédé servant à faire fonctionner une installation d'annonces orales
CN103299352A (zh) *	2010-10-04	2013-09-11	诺瓦尔有限责任公司	一种用于运行语音广播装置的方法
CN103299352B (zh) *	2010-10-04	2015-08-19	诺瓦尔有限责任公司	一种用于运行语音广播装置的方法
EP2437228B1 (fr) *	2010-10-04	2016-08-10	Hekatron Vertriebs GmbH	Alarme, installation d'alarme et procédé de reconnaissance d'erreurs de lignes de transmission
US9462401B2 (en)	2010-10-04	2016-10-04	Novar Gmbh	Method for operating a public address system

Also Published As

Publication number	Publication date
US20020057198A1 (en)	2002-05-16
CN1157696C (zh)	2004-07-14
DE50105236D1 (de)	2005-03-10
DE10051329C2 (de)	2003-12-11
CN1372229A (zh)	2002-10-02
EP1197936A3 (fr)	2003-07-02
DE10051329A1 (de)	2002-04-18
EP1197936B2 (fr)	2008-05-14
US6507277B2 (en)	2003-01-14
EP1197936B1 (fr)	2005-02-02
ATE288605T1 (de)	2005-02-15

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