EP2958344A1 - Procédé et agencement de contrôle du cheminement d'un signal et son utilisation - Google Patents

Procédé et agencement de contrôle du cheminement d'un signal et son utilisation Download PDF

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Publication number
EP2958344A1
EP2958344A1 EP15001753.1A EP15001753A EP2958344A1 EP 2958344 A1 EP2958344 A1 EP 2958344A1 EP 15001753 A EP15001753 A EP 15001753A EP 2958344 A1 EP2958344 A1 EP 2958344A1
Authority
EP
European Patent Office
Prior art keywords
signal
code
control device
impressed
secure control
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Withdrawn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
EP15001753.1A
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German (de)
English (en)
Inventor
Bernd Klose
Felix Mellmann
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.)
Funkwerk Systems GmbH
Original Assignee
Funkwerk Information Technologies Karlsfeld 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.)
Filing date
Publication date
Application filed by Funkwerk Information Technologies Karlsfeld GmbH filed Critical Funkwerk Information Technologies Karlsfeld GmbH
Publication of EP2958344A1 publication Critical patent/EP2958344A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/007—Monitoring arrangements; Testing arrangements for public address systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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
    • G08B29/10—Monitoring of the annunciator circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
    • G08C25/04—Arrangements for preventing or correcting errors; Monitoring arrangements by recording transmitted signals

Definitions

  • the invention relates to a method and an arrangement for checking a signal path for processing signals or for the secure control and output of at least one stored voice announcement by means of a non-secure data processing device on request, as well as their use.
  • Such methods and arrangements are well known. Such methods and arrangements are used, for example, on rail vehicles as part of passenger information systems (FIS) in general and evacuation systems in particular to issue warnings or other announcements in the form of digitally stored voice prompts or external sound sources on demand.
  • FIS passenger information systems
  • the prior art methods and arrangements are based exclusively on digital functional groups which are monitored via a secure computer, which is extremely cost-intensive.
  • the invention is therefore based on the object to provide a method and an arrangement for checking a signal path for processing signals or for the secure control and output of at least one stored voice message by means of a non-secure data processing device on request, which / s constructive particular simple, fast-working, at the same time reliable, therefore extremely trouble-free and fail-safe, as well as very cost-effective, as well as to provide their use.
  • the code according to claim 4 is impressed on the signal or on the voice announcement in a modulated form. Preferably, this may be done in modulated form in a non-audible range.
  • At least one signal or at least one voice announcement with an impressed code is stored in a memory device and / or provided in a signal source, whereby each signal or voice announcement is individualized by an impressed unique code according to step a).
  • the measures of claim 6 serve to further increase the security. Thereafter, the file (s) with the signal or the voice announcement and the imprinted code is / are written to the correct assignment of signal or voice announcement and imprinted code validated.
  • the validation is expediently carried out according to safety-related aspects and requirements.
  • the imprinted code signal from a signal source or the stored voice prompts with imprinted code from a memory device is cycled through a secure control device according to step b) for functional testing of the evacuation system requested.
  • the invention further provides that the signal with imprinted code according to claim 8 from the signal sink or the amplified speech announcement with imprinted code from the amplifier according to step d) of the safe control device via a filtering and / or demodulation device is supplied.
  • the signal supplied by the signal source with impressed code or supplied by the amplifier voice announcement with imprinted code according to step e) is received and detected by claim 10 by a signal evaluation device of the safe control device.
  • step f) The impressed code of the detected signal or the impressed code of the detected voice announcement according to step f) according to claim 11 with an associated with the requested signal or the requested voice announcement, in a signal evaluation device of the secure control device provided and / or deposited code by a signal evaluation device of the safe control device compared and evaluated.
  • diagnosis message about the trouble-free / disturbance state of the signal or the voice prompt according to step 12) is generated and output by a diagnosis device of the safe control device in response to the evaluation of the comparison between the two codes.
  • the relay according to step i) is controlled according to claim 13 by a diagnostic device of the safe control device and the monitoring device for activating an output device for outputting the signal or the voice announcement and supplied with power.
  • the relay according to step i) is preferably tightened when the relay is simultaneously driven by the safe control device and the monitoring device and supplied with power.
  • the inventive design of the inventive arrangement for checking a signal path for processing signals comprises means for impressing a code on a signal and storing it in a file, a secure control device or a secure computer for requesting the signal with imprinted code from a signal source, means for processing the requested signal with impressed code and forwarding the processed signal with impressed code to a signal sink, means for supplying the signal with impressed code from the signal sink to the safe control apparatus, means for receiving and detecting the impressed code signal supplied from the signal sink by the secure control device; means for comparing and evaluating the impressed code of the detected signal with a code associated with the requested signal provided and / or stored in the secure control device the secure control device, means for generating and outputting a diagnostic message about the interference-free / malfunctioning state of the signal by the secure control device in response to the evaluation of the comparison between the two codes, means for resetting or interrupting a monitoring device for monitoring the function of one safe control and supply voltages in response to the evaluation of the comparison between the two codes, and means for driving
  • the arrangement for the secure control and output of at least one voice announcement by means of a non-secure data processing device comprises means for impressing a code on one of the at least one voice announcement and storing it in a memory device, a secure control device for requesting the stored voice prompts with stored code from the memory means, means for outputting the stored voice prompts to an amplifier and amplifying the stored voice prompts by the amplifier, means for supplying the amplified voice prompts with impressed code from the amplifier to the secure one A control device, means for receiving and detecting by the secure control device the voice-tagged speech announcement supplied from the amplifier, means for V equalize and evaluate the imprinted Codes of the detected voice prompt associated with the requested voice announcement provided and / or stored in the secure control device code by the secure control device, means for generating and outputting a diagnostic message on the trouble / disturbance state of the voice response by the secure control device in response to the Evaluation of the comparison between the two codes, means for resetting or interrupting a monitoring device for monitoring the function of a safe control and supply voltages
  • a method or an arrangement according to the invention in an evacuation system in a building, a tunnel, on a bridge or in a vehicle, in particular vehicle for the track-bound traffic, preferably for the Rail and rail transport, most preferably for railways, rubber-tired metro, monorail or suspension / suspension railways, and / or in a passenger and / or passenger information system to use.
  • the method (s) and / or arrangement (s) 10 for verifying a signal path for processing signals or for securely controlling and outputting at least one stored voice prompt by means of a non-secure data processing device on demand is / are in an evacuation system in a building in a tunnel, on a bridge or in a vehicle, in particular vehicle for track-bound traffic, preferably for rail and rail transport, very preferably for railways, rubber-tired metro trains, monorails or suspension / suspension railways, and / or provided in a passenger and / or passenger information system.
  • an arrangement 10 for example, a part of a passenger information system (FIS) is and in particular, for example, as an evacuation system on rail vehicles use.
  • the arrangement 10 is capable of internally digitally stored voice announcements or external sound sources to amplify on demand and output to an output channel with, for example, up to 100 V amplitude.
  • the arrangement 10 can virtually form a building block between a train guidance system 12 and an output device 14, for example a loudspeaker, in the rail vehicle.
  • Bidirectional communication takes place between the arrangement 10 and the train guidance system 12, the arrangement 10 receiving control signals 16 from the train guidance system and sending diagnostic messages 18 to the train guidance system 12, preferably continuously and cyclically.
  • a unidirectional communication takes place between the arrangement 10 and the output device 14, the arrangement 10 actuating the output device 14 via a control signal 20, for example in the form of an amplified audio signal.
  • the signal path 22 preferably outputs analog signals 24 ', without this possibly also precluding an at least partially digital signal processing.
  • the method comprises one in the Fig. 2 not shown in detail, in order to impose a code or a code sequence on a signal 24 or useful signal, for example in the form of an audible announcement or voice announcement.
  • Code or code sequence and signal 24 or useful signal are inseparable from each other and thus permanently connected.
  • the code or the code sequence impressed on the signal 24 or on the voice announcement is advantageously in a modulated form.
  • the code or the code sequence in the method or the arrangement 10 according to the invention is in a non-audible range.
  • At least one signal 24 with an impressed code or stamped code sequence is stored in a memory device 26 or a memory.
  • a memory device 26 or a memory.
  • Each signal 24 is thus represented by an imprinted one-time / n, i. unique / or only once available, code or code sequence individualized and precisely defined. It is thus ensured that each signal 24 is assigned a very specific code or code sequence which does not exist again.
  • the memory device 26 or the memory can also verify the correct assignment of signal 24 or voice message 24 and imprinted code in the course of a safety-related validation of the stored file / s with signal 24 or Voice prompt 24 and imprinted code. In this way, the reliability and reliability can be further improved.
  • the validation can be done as a type test (for a series of the evacuation system) or as a routine test in the course of commissioning by function test. Validation as a type test can be done before or after the storage done. A validation by piece check takes place after the signal with impressed code has been stored.
  • the at least one stamped-code signal 24 is provided by the memory device 26 in a signal source 28, for example a file, preferably an audio file.
  • the signal source 28 is prompted on request to reproduce a signal 24 or a useful signal, such as a voice message through the signal path 22.
  • the imprinted signal 24 is supplied to a processing device 32 upon request from the signal source 28.
  • one or more further processing devices 32 ' may be connected to the processing device 32.
  • the signal 24 is processed with code impressed.
  • the processing device 32 is an amplifier, the signal 24 is amplified and provided as a signal 24 '.
  • the thus imprinted code signal 24 ' is forwarded by the processing device (s) 32, 32' to a signal sink 34 and in turn fed back from the signal sink 34 to the control device 30.
  • the signal 24 'at the output of the signal source 36 can be previously performed via a filter and / or demodulation device 36.
  • the signal 24 ' is subsequently received and detected by the control device 30.
  • the signal 24 'with imprinted code is preferably fed to a signal evaluation device 38 of the control device 30.
  • the signal evaluation device 38 first detects the impressed code of the signal 24 'that has just been received.
  • the impressed code of the detected signal 24 ' is associated with a code which is associated with the requested signal 24 and supplied to the control device 30 upon request of the signal 24 and / or in the control device 30 or the signal evaluation device 38 is deposited, compared and evaluated. Consequently, a comparison between the code of the received signal 24 'and the stored expected value or code of the requested signal 24 takes place in the signal evaluation device 38.
  • control device 30 If there is a match of impressed code of the detected signal 24 'and code provided in the control device 30, i. if the result of the comparison is positive, the properties of the signal path 22 are assumed to be correct. The control device 30 then activates the output device 14, so that the signal 24 or the voice or announcement can be released and output via the output device 14.
  • control device 30 controls the output device 14 and blocks immediately the output of the signal 24 'or payload or the announcement or voice announcement.
  • control device 30 simultaneously requests again from the signal source 28 a signal 24 with impressed code.
  • the inventive method for checking the signal path 22 is repeated.
  • the request is made cyclically for verification purposes.
  • the request preferably also takes place permanently and / or in real time.
  • the inventive method which in the Fig. 2 can be applied at any time and / or regardless of the execution of the entire system function, provided that the surrounding system allows the decoupling of the signal sink 34 of the entire assembly 10.
  • the Fig. 2 shows the slaughter 40 the signal path 22 between the memory device 26 via the signal source 28 and the signal sink 34 up to and including the filter and / or demodulation device 36th
  • FIG. 12 shows an embodiment of an arrangement 10 according to the invention, which is provided for secure control and output of at least one stored announcement 24 by means of a data processing device 42 on request.
  • the associated method and further details for the configuration of methods and / or arrangement 10, which are proposed according to the invention in the case of positive and / or negative results of the comparison, are explained in more detail.
  • the arrangement 10 comprises the data processing device 42, which is usually designed as a non-secure computer.
  • the data processing device 42 is associated with the memory device 26 or memory and a speech synthesizer 44.
  • the memory device 26 is expediently integrated in the data processing device 42.
  • the memory device 26 stores at least one file, for example an audio file, which comprises at least one audible announcement 24 or voice announcement.
  • an audio file which comprises at least one audible announcement 24 or voice announcement.
  • On the announcement or voice announcement 24 a certain code or a specific code sequence is imprinted.
  • the announcement or voice announcement 24 and the code were therefore united together in the course of the project to a file. This can ensure that with the recognition of the code always the voice announcement is issued.
  • Each voice prompt 24 is thus represented by an imprinted one-time / n. unique / or only once available, code or code sequence individualized and precisely defined.
  • each voice prompt 24 is assigned a very specific code or code sequence which does not exist again.
  • the imprinted code or code sequence is preferably present in modulated form.
  • the code or the code sequence is expediently not audible.
  • several codes or code sequences can be used in this respect.
  • the selection of the correct voice prompt 24 (with several possible voice prompts 24) and, if the code could be evaluated, on the other hand, with sufficient probability, can check a good announcement quality.
  • the safety-relevant functions of the analog function groups of the amplifier module can be cyclically checked.
  • a safety-related validation of the stored file / s with signal 24 or voice prompt 24 and imprinted code can be used as a type test (for a series of evacuation systems) or as a routine test during commissioning of each individual device.
  • a validation as a type test can be done before or after the storage.
  • a validation by piece check takes place after the signal with impressed code has been stored.
  • the secure control device 30 communicates with the data processing device 42 in unidirectional communication.
  • the control device 30 requests to the data processing device 42 a stored speech announcement 24 with impressed code.
  • the data processing device 42 retrieves a corresponding file and forwards this file to the speech synthesizer 44.
  • the speech synthesizer 44 generates from the stored file a signal or a voice announcement with imprinted code or code sequence and outputs the signal 24 imprinted code to the processing device 32, which is formed for example as an amplifier from .
  • the signal or the voice announcement 24 with imprinted code, which is generated by the speech synthesizer 44 may be present in (partially) analog form and / or in (partially) digital, then additionally preferred modulated, form.
  • the processing device 32 processes the signal or the voice announcement 24 with imprinted code. For example, in the processing device 32, an amplification thereof takes place. Likewise, a conversion can take place from its (partially) digital form into analogous form.
  • the processing device 32 outputs the processed, for example amplified, signal or voice announcement 24 'with imprinted code to the filtering and / or demodulation device 36, from which the filtered and / or demodulated voice announcement 24' of the safe control device 30 is supplied.
  • a channel 45 over which the processing device 32 is connected to the output device 14 is closed.
  • the impressed code announcement 24 fed from the amplifier 32 is received and detected by the secure control device 30 and forwarded internally to the signal evaluation device 38.
  • the impressed code of the detected voice announcement 24 ' is then compared with a code which is assigned to the requested voice announcement 24' and stored in the signal evaluation device 38, and evaluated.
  • a diagnostic device 46 generates a diagnostic message about the interference-free / malfunctioning state of the signal or the voice announcement 24 'and to a separate monitoring device 48 or a separate watchdog and a relay 50 or safety relay output.
  • either the monitoring device 48 or the watchdog which is provided for monitoring the function of a safe control and supply voltages, either reset if the result of the comparison is positive or its activation interrupted if the result of the comparison is negative.
  • the relay 50 is activated by simultaneous activation by the diagnostic device 46 of the safe control device 30 and the monitoring device 48 with a positive result of the comparison and supplied with power or disabled in the negative result of the comparison. Only when the relay 50 is energized and energized can a speech announcement 24 'be made via the output device 14.
  • Validation of read-in digital inputs 52 The digital inputs 52 are read in twice. Permanently unequal input states lead to the absence of activation of the external monitoring device 48 or watchdogs.
  • Cyclic examination of the announcement function The test is based on a voice announcement 24 superimposed, inaudible, code or code sequence.
  • the different codes or code sequences are inseparably impressed on the various voice announcements 24 during the data provisioning process.
  • speech announcement 24 and code sequence are output on the same signal path 22 and amplified by the output device 14 and the amplifier.
  • the outputs of the output device 14 are returned to the secure control device 30 by a detection function. This compares the obtained code or code sequence with the expected code or code sequence. If these do not match, this leads to the absence of control of the external monitoring device 48 or watchdogs.
  • a separate monitoring function includes a watchdog and voltage monitoring.
  • the watchdog is regularly reset by the secure control device 30, as long as there is a match between the codes or code sequences to be compared and evaluated by the secure control device 30.
  • the relay 50 is controlled by the safe control device 30 and the monitoring device 48. The relay 50 is energized only when both the safe controller 30 and the monitor 48 turn off the relay 50.
  • the arrangement 10 further controls the external relays K1 and K2.
  • the relay K1 is controlled by the diagnosis device 46 and the monitoring device 48 via the relay 50, and indicates the operation or fault state of the device 10. From relay K2 a contact is read back to check the function of the relay.
  • the digital inputs 52 are for Triggering the speech announcement 24, 24 ', digital outputs 54 for connecting the output device / s 14 and speakers and for diagnosis, a data interface Ethernet (not shown) with the data processing device 42, an analog output voltage (100 V), a supply voltage 56 (24 V DC) and an LED display device for displaying the operating state (also not shown).
  • the method and the arrangement 10 according to the invention are distinguished by realization of the safety by means of a "fail-safety by safety-related failure reaction", which is characterized by a safety-related failure reaction of the observation unit on the one hand and by rapid detection of failures on the other hand.
  • the memory device 26, the control device 30 and the diagnostic device 46 of the control device 30 are implemented as digital functional groups.
  • the proofs of the specified function and the safety-related failure response for digital function groups are normatively regulated. Proof of the required safety target can be provided by using procedures described in the standards.
  • analog functional groups such as the speech synthesizer 44 and the processing device (s) 32, 32 'or amplifiers
  • a fast detection of a malfunction or failure is required.
  • the security goal is achieved by cyclically subjecting the analog function groups to a functional check by triggering a voice prompt 24, 24 '.
  • the speakers 14 must be turned off.
  • the output of the processing device 32, 32 'and the amplifier, respectively, is provided to the controller 30 in a suitable form to distinguish between the positive and negative result of a check.
  • the arrangement 10 according to the invention can be used in an evacuation system of any type, shape and size. Consequently, the arrangement 10 according to the invention can be used instead of in a vehicle or any mobile cell alike in a building, in a tunnel, on a bridge or the like fixed structure, to allow early warning and evacuation.
  • the arrangement 10 can then form in the overall technical context, as it were, a building block between a control system 12 and the output device 14, for example the loudspeaker, in the building or tunnel or on the bridge.
  • Bidirectional communication takes place between the arrangement 10 and the control system 12, wherein the arrangement 10 receives control signals 16 from the control system and sends diagnostic messages 18 to the control system 12, preferably continuously and cyclically.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
EP15001753.1A 2014-06-13 2015-06-15 Procédé et agencement de contrôle du cheminement d'un signal et son utilisation Withdrawn EP2958344A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014108397.0A DE102014108397A1 (de) 2014-06-13 2014-06-13 Verfahren und Anordnung zur Überprüfung eines Signalpfades sowie deren Verwendung

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EP2958344A1 true EP2958344A1 (fr) 2015-12-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4325893A1 (fr) * 2022-08-16 2024-02-21 Aptiv Technologies Limited Surveillance de lecture audio pour des applications automobiles

Citations (4)

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DE102007027942A1 (de) * 2007-06-18 2008-02-28 Daimler Ag Testsystem und Verfahren zum Testen von Multimediakomponenten
US20080317252A1 (en) * 2004-11-09 2008-12-25 Bertus Tjalsma Public Address System
US20100161089A1 (en) * 2008-12-19 2010-06-24 Thales Device for generating sound messages with integrated defect detection
WO2013186823A1 (fr) * 2012-06-15 2013-12-19 Toa Corporation Système de sonorisation et dispositif de commande pour système de sonorisation

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Publication number Priority date Publication date Assignee Title
DE4339906C2 (de) * 1993-11-23 1997-04-17 Wsz Elektronik Gmbh Verfahren und Vorrichtung zur Störungsüberwachung eines elektronischen Kommunikationssystems
DE202010001322U1 (de) * 2009-11-23 2010-06-24 Pfannenberg Gmbh Vorrichtung zur Überwachung eines Schallgebers, insbesondere eines Alarmschallgebers, und ein entsprechender Schallgeber
DE102011087676A1 (de) * 2011-12-02 2013-06-06 Continental Automotive Gmbh Verfahren und Vorrichtung zur Überprüfung einer Lautsprecheranordnung

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US20080317252A1 (en) * 2004-11-09 2008-12-25 Bertus Tjalsma Public Address System
DE102007027942A1 (de) * 2007-06-18 2008-02-28 Daimler Ag Testsystem und Verfahren zum Testen von Multimediakomponenten
US20100161089A1 (en) * 2008-12-19 2010-06-24 Thales Device for generating sound messages with integrated defect detection
WO2013186823A1 (fr) * 2012-06-15 2013-12-19 Toa Corporation Système de sonorisation et dispositif de commande pour système de sonorisation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4325893A1 (fr) * 2022-08-16 2024-02-21 Aptiv Technologies Limited Surveillance de lecture audio pour des applications automobiles

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