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1. WO2020007529 - EMERGENCY CALL SYSTEM OF A MOTOR VEHICLE

Publication Number WO/2020/007529
Publication Date 09.01.2020
International Application No. PCT/EP2019/063396
International Filing Date 23.05.2019
IPC
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
25
Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
01
characterised by the transmission medium
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
20
Arrangements for obtaining desired frequency or directional characteristics
32
for obtaining desired directional characteristic only
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
20
Arrangements for obtaining desired frequency or directional characteristics
32
for obtaining desired directional characteristic only
40
by combining a number of identical transducers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3
Circuits for transducers
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
29
Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
29
Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
18
Prevention or correction of operating errors
G08B 25/01 (2006.01)
H04R 1/32 (2006.01)
H04R 1/40 (2006.01)
H04R 3/00 (2006.01)
G08B 29/00 (2006.01)
G08B 29/18 (2006.01)
CPC
G08B 25/016
G08B 29/00
G08B 29/18
H04R 1/326
H04R 1/406
H04R 3/005
Applicants
  • VOLKSWAGEN AKTIENGESELLSCHAFT [DE/DE]; Berliner Ring 2 38440 Wolfsburg, DE
Inventors
  • BORK, Simon; DE
Priority Data
10 2018 210 934.603.07.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) NOTRUFSYSTEM EINES KRAFTFAHRZEUGS
(EN) EMERGENCY CALL SYSTEM OF A MOTOR VEHICLE
(FR) SYSTÈME D'APPEL D'URGENCE D'UN VÉHICULE À MOTEUR
Abstract
(DE)
Ein Notrufsystem eines Kraftfahrzeugs umfasst ein digitales Mikrofon, welches über einen Automotive Audio Bus mit einem Busmaster verbunden ist und von diesem zur Bereitstellung einer vorgegebenen Richtcharakteristik angesteuert wird, wobei - das digitale Mikrofon mindestens zwei Mikrofonkapseln aufweist, - die mindestens zwei Mikrofonkapseln symmetrisch zueinander angeordnet sind, - das digitale Mikrofon in Fahrrichtung vor dem Ort des Fahrers und dem Ort des Beifahrers angeordnet ist, und - bei einem Ausfall des Busmasters zwei Mikrofonkapseln verpolt seriell miteinander verschaltet werden, so dass eine gemeinsame Achtcharakteristik erzeugt wird, und die gemeinsamen Signale aus dem digitalen Mikrofon zur weiteren Verarbeitung herausgeführt werden.
(EN)
An emergency call system of a motor vehicle comprises a digital microphone that is connected to a bus master via an automotive audio bus and is actuated by said bus master to provide a prescribed directional characteristic, wherein - the digital microphone has at least two microphone capsules, - the at least two microphone capsules are arranged symmetrically with respect to one another, - the digital microphone is arranged ahead of the location of the driver and the location of the passenger in the direction of travel, and - in the event of failure of the bus master, two microphone capsules are interconnected in series with one another with the incorrect polarity, so that a common figure-of-eight characteristic is produced, and the common signals from the digital microphone are routed out for further processing.
(FR)
L'invention concerne un système d'appel d'urgence d'un véhicule à moteur. Le système comprend un microphone numérique, lequel est relié à un bus maître par l'intermédiaire d'un bus audio d'automobile et commandé par celui-ci pour fournir un diagramme de directivité prédéfini, - le microphone numérique présentant au moins deux capsules de microphone, - les deux capsules de microphone ou plus étant disposées de manière symétrique l'une par rapport à l'autre, - le microphone numérique étant disposé dans le sens de marche devant l'emplacement du conducteur et l'emplacement du passager avant, et - en cas de défaillance du bus maître, deux capsules de microphone étant connectées l'une à l'autre en série de manière polarisée, de sorte qu'une directivité bidirectionnelle commune est produite, et les signaux communs sont sortis du microphone numérique en vue d'un traitement subséquent.
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