EP4085454A1 - Système et procédé pour la détection acoustique de sirènes d'urgence - Google Patents
Système et procédé pour la détection acoustique de sirènes d'urgenceInfo
- Publication number
- EP4085454A1 EP4085454A1 EP21704335.5A EP21704335A EP4085454A1 EP 4085454 A1 EP4085454 A1 EP 4085454A1 EP 21704335 A EP21704335 A EP 21704335A EP 4085454 A1 EP4085454 A1 EP 4085454A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- siren
- tone
- vehicle
- patterns
- acoustic signal
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 61
- 241000269400 Sirenidae Species 0.000 title description 6
- 238000012545 processing Methods 0.000 claims abstract description 15
- 230000008859 change Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000000541 pulsatile effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
Definitions
- the system includes an acoustic signal processing module configured to process a number of frequency components of a frequency domain representation of the acoustic signal over time to determine a corresponding number of values.
- the processing includes determining, for each frequency component a value characterizing a presence of a time pattern associated with at least one siren pattern.
- the system also includes a multi-tone siren type detection module configured to process the values according to the siren patterns to determine a detection result indicating whether the multi-tone siren type is present in the acoustic signal.
- the present disclosure provides a system and method for detecting a multitone siren by accounting for a doppler shift attributable to a relative speed between an emergency vehicle and an automated vehicle.
- short- Time Fourier Transform (STFT) calculations are performed and energy values for each time-frequency bin are determined by detection unit 210.
- STFT short- Time Fourier Transform
- steps 575, 580, 585 and 595 detection unit 210 detects tone duration patterns for each given frequency.
- detection unit 210 checks for common onsets of the detected tone duration patterns for harmonics of the same fundamental frequency to generate detected segments.
- detection unit 210 matches the detected segments to given siren pattern models, which specify valid sequences of segments for siren signals.
- detection unit 210 generates a detection result.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Emergency Management (AREA)
- Computational Linguistics (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Traffic Control Systems (AREA)
Abstract
La présente invention concerne un procédé qui détecte la présence d'un type de sirène à tonalités multiples dans un signal acoustique. Le type de sirène à tonalités multiples est associé à un ou plusieurs motifs de sirène, chaque motif de sirène comprenant un certain nombre de motifs temporels à des fréquences correspondantes. Le procédé comprend le traitement d'un certain nombre de composantes de fréquence d'une représentation de domaine de fréquence du signal acoustique au cours du temps pour déterminer une pluralité correspondante de valeurs. Ce traitement comprend la détermination, pour chaque composante de fréquence, d'une valeur caractérisant une présence d'un motif temporel associé à au moins un motif de sirène. Le procédé comprend en outre le traitement des valeurs selon les motifs de sirène pour déterminer un résultat de détection indiquant si le type de sirène à tonalités multiples est présent dans le signal acoustique.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202062957290P | 2020-01-05 | 2020-01-05 | |
| US202062962278P | 2020-01-17 | 2020-01-17 | |
| PCT/US2021/012159 WO2021138696A1 (fr) | 2020-01-05 | 2021-01-05 | Système et procédé pour la détection acoustique de sirènes d'urgence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4085454A1 true EP4085454A1 (fr) | 2022-11-09 |
Family
ID=74572841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21704335.5A Pending EP4085454A1 (fr) | 2020-01-05 | 2021-01-05 | Système et procédé pour la détection acoustique de sirènes d'urgence |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4085454A1 (fr) |
| WO (1) | WO2021138696A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11984026B2 (en) | 2022-05-19 | 2024-05-14 | Alert The Mechanism LLC | System and method for emergency vehicle detection and alerting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011007777A1 (de) * | 2011-04-20 | 2012-10-25 | Robert Bosch Gmbh | Verfahren zur Erkennung eines sich einem Kraftfahrzeug nähernden Rettungsfahrzeuges, Signalverarbeitungsanlage für die Ausführung eines solchen Verfahrens und Warnsystem |
| DE102014217681B4 (de) * | 2014-09-04 | 2020-12-10 | Imra Europe S.A.S. | Sirenensignalquellenerfassung, -Erkennung und -Lokalisation |
| US10152884B2 (en) * | 2017-04-10 | 2018-12-11 | Toyota Motor Engineering & Manufacturing North America, Inc. | Selective actions in a vehicle based on detected ambient hazard noises |
| US10210756B2 (en) * | 2017-07-24 | 2019-02-19 | Harman International Industries, Incorporated | Emergency vehicle alert system |
| WO2020072116A2 (fr) * | 2018-07-20 | 2020-04-09 | Nuance Communications, Inc. | Système et procédé pour la détection acoustique de sirènes d'urgence |
-
2021
- 2021-01-05 WO PCT/US2021/012159 patent/WO2021138696A1/fr active Application Filing
- 2021-01-05 EP EP21704335.5A patent/EP4085454A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021138696A1 (fr) | 2021-07-08 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20220712 |
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| AK | Designated contracting states |
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