EP3814794A1 - Dachfinne für ein fahrzeug zur erfassung von umgebungsgeräuschen, fahrzeug mit einer derartigen dachfinne, bausatz für eine an einem fahrzeug nachrüstbare dachfinne und verfahren zum herstellen einer dachfinne - Google Patents
Dachfinne für ein fahrzeug zur erfassung von umgebungsgeräuschen, fahrzeug mit einer derartigen dachfinne, bausatz für eine an einem fahrzeug nachrüstbare dachfinne und verfahren zum herstellen einer dachfinneInfo
- Publication number
- EP3814794A1 EP3814794A1 EP19727346.9A EP19727346A EP3814794A1 EP 3814794 A1 EP3814794 A1 EP 3814794A1 EP 19727346 A EP19727346 A EP 19727346A EP 3814794 A1 EP3814794 A1 EP 3814794A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- roof
- roof fin
- fin
- ambient noise
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/801—Details
-
- 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
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic or infrasonic waves
- G01S5/28—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic or infrasonic waves by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
- H04R2430/23—Direction finding using a sum-delay beam-former
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
Definitions
- Roof fin for a vehicle to record ambient noise.
- the invention relates to a roof fin according to claim 1 for a vehicle for detecting ambient noise. Furthermore, the invention relates to a vehicle according to claim 7 comprising a roof fin according to the invention. The invention also relates to a kit according to claim 8 for a roof fin that can be retrofitted to a vehicle. Furthermore, the invention relates to a method according to claim 9 for producing a roof fin for a vehicle for detecting ambient noise.
- Driver assistance systems are known from the prior art which enable a partially and / or highly automated driving of a vehicle.
- the integration of the driver assistance systems requires complex changes to the design of the vehicle. For example, imaging sensors must meet specific position requirements. Or the entire vehicle body has to be changed to accommodate driver assistance systems.
- Antenna systems are known in the automotive sector which are at least partially enclosed by a housing.
- the antenna systems are often mounted on a roof of a vehicle and are also referred to as a roof fin if the housing has the shape of a fin, for example.
- DE 10 2013 206 519 A1 discloses a roof fin antenna system.
- DE 10 2016 221 858 A1 discloses a roof fin for a vehicle, a camera being arranged in a housing of the roof fin in order to record the exterior surroundings of the roof fin by the camera.
- DE 10 2016 006 802 A1 discloses a device for detecting an optical and / or acoustic special signal emanating from an emergency vehicle.
- the device can be arranged in a roof area of a vehicle. This is where the invention comes in.
- the invention has for its object to provide an improved compared to the prior art system for detecting ambient noise, which can be easily mounted on a vehicle without changing a given design of the vehicle.
- the roof fin according to the invention for a vehicle for detecting ambient noise solves the task with the features of claim 1.
- the roof fin includes at least a first and a second sensor to detect the ambient noise.
- the roof fin also includes an evaluation device. Depending on the detected ambient noise, the evaluation device classifies at least one noise source of the ambient noise and determines a direction of the noise source relative to the vehicle.
- the evaluation device is designed to carry out an artificial neural network.
- the artificial neural network is trained to receive a signal for a vehicle control device depending on at least the classification of the noise source and the direction of the noise source.
- the roof fin also includes an interface. The interface is designed to provide the signal from the vehicle control device in order to control the vehicle as a function of the ambient noise.
- the roof fin at least partially encloses the at least first and second sensors, the evaluation device and the interface.
- This roof fin is advantageously provided as a single component. All relevant components for recording ambient noise are fully integrated in this single component. The installation of a single component on a vehicle is easier than the installation of several individual components.
- a roof fin already belongs to the given exterior in many vehicles. This means that the given design of a vehicle does not have to be changed in order to install a system for recording ambient noise, comprising at least two sensors for recording the ambient noise and an evaluation device for processing the recorded ambient noise. The system is already fully integrated in the roof fin.
- This roof fin is provided as a single part to a vehicle owner. The vehicle owner can then advantageously retrofit the roof fin on his vehicle as a kind of retrofit solution. AI Alternatively or additionally, the roof fin is made available to a vehicle manufacturer.
- roof fin An advantage of the roof fin is that existing cable connections of the roof fin can be used for the microphones.
- the antenna of the roof fin usually already includes a coaxial cable that can be used for the transmission of the acoustic signals from the microphones.
- the vehicle manufacturer can then advantageously integrate the roof fin with the system for recording ambient noise into his vehicles.
- a suitable artificial neural network can advantageously generalize a recognized ambient noise and thus also recognize ambient noises that were not previously taught in or are not available in a database.
- the vehicle according to the invention achieves the object by means of a roof fin according to the invention, which comprises the vehicle.
- the first and second sensors for detecting ambient noise and the evaluation device for reacting to the ambient noise give the vehicle the ability to hear and identify noise from outside the vehicle in order to be able to initiate appropriate reactions.
- the kit according to the invention for a roof fin that can be retrofitted to a vehicle achieves the object with the features of claim 8.
- the kit comprises a roof-mounted housing.
- the roof structure housing has the shape of a fin.
- the kit further comprises at least a first and a second sensor in order to detect ambient noise.
- the kit also includes an evaluation device.
- the evaluation device is designed to use artificial intelligence to classify at least one noise source of the ambient noise as a function of the detected ambient noise and to determine a direction of the noise source relative to the vehicle. Depending on at least the classification of the noise source and the direction of the noise source, the Evaluation device a signal for a vehicle control device.
- the kit also includes an interface.
- the interface is designed to provide the signal from the vehicle control device in order to control the vehicle as a function of the ambient noise.
- a roof fin according to the invention can be easily assembled.
- the roof fin obtained in this way can be retrofitted to vehicles as a retrofit solution in order to be able to record ambient noises.
- the method according to the invention for producing a roof fin for a vehicle for recording ambient noise solves the task with the features of claim 9.
- the method comprises the method steps
- the method can advantageously be carried out by a vehicle owner, a vehicle manufacturer and / or by service stations, for example workshops.
- Finn denotes the dorsal fin of sharks and whales.
- a fin has an extremely characteristic triangular shape.
- a housing in the shape of a fin has a relatively low air resistance.
- a roof structure housing with the shape of a fin is called a roof fin.
- the surface shape of the roof fin is particularly advantageous for the installation of microphones or other sensors to detect acoustic signals. If the microphones are installed in the rear area of the roof fin, they are protected from the wind from the direction of travel. Wind is a ne of the possible sources that interfere with the detection of ambient noise while driving the vehicle.
- a vehicle is preferably a road vehicle, preferably a passenger or truck.
- the vehicle is preferably an automated vehicle.
- An automatically operated vehicle is a vehicle that has technical equipment that, in order to cope with a driver's task, including longitudinal and lateral guidance, the respective vehicle after activation of a corresponding automatic driving function, in particular a highly or fully automated driving function according to the SAEJ3016 standard a vehicle control device can control.
- a pure assistance system assists the driver in carrying out a driving task. This corresponds to SAE level 1.
- SAE level 5 is defined by the fact that all aspects of the dynamic driving task are carried out consistently by an automated driving system under all driving and environmental conditions that can be handled by a human driver.
- the invention is particularly intended for SAE levels 3, 4 and 5.
- the invention is used at SAE levels 3 and 4 in order to subsequently be used at SAE level 5.
- the invention can also be used as a pure assistance system, in particular for hearing-impaired people.
- the vehicle advantageously comprises further environmental detection sensors, for example a camera, a radar, a lidar and / or an ultrasonic sensor, in order to perceive the environment in an improved and redundant manner.
- the data of the first and / or second sensor is advantageously fused with data of at least one of the further surroundings detection sensors in order to improve the perception of the surroundings.
- Ambient noises are noises from the surroundings of a vehicle.
- the area around the vehicle is the space around the vehicle, the elements of which can act on the vehicle.
- Examples of ambient noises are acoustic signals from a follow-up horn of an emergency vehicle, acoustic signals from a signal generator from another road user, for example horns from another vehicle or the ringing of a cyclist, or acoustic signals from non-automotive road users, for example pedestrians' calls or children's cries.
- the first and second sensors each detect sound waves from the ambient noise and preferably convert them into an electrical signal, preferably an electrical voltage.
- the first and / or the second sensor preferably comprise a sound transducer.
- the sound transducer is a component that converts sound waves, in particular sound pressure changes, into electrical signals.
- a sound transducer is an arrangement of a magnet and an electrical coil.
- Further examples of a first and / or a second sensor are microphones, accelerometers, piezo sensors, strain gauges and other vibration sensors.
- a micro-electro-mechanical system, abbreviated MEMS, comprising an arrangement of semiconductor elements that absorb vibrations is also an example of a first and / or second sensor.
- the direction from which the sound waves arrive can advantageously be determined, for example via transit time differences between the two sensors.
- the first and / or the second sensor preferably also detect a distance from the noise source. This makes it possible to localize the noise source.
- the roof fin particularly preferably comprises an arrangement of more than two sensors in order to detect the ambient noise, advantageously four sensors in order to classify and / or localize noise sources relative to the vehicle from the front right, front left, rear left and rear right.
- the roof fin includes an all-round microphone.
- the omnidirectional microphone detects ambient noise from a 360 ° surrounding field, which means that the omnidirectional microphone is omnidirectional.
- the sensors are advantageously designed for use in the automotive field. This means that the sensors are particularly resistant to high and low temperatures, moisture, shocks and / or foreign bodies.
- An evaluation device is a device that processes incoming information and outputs a result resulting from this processing.
- an electronic circuit such as a central processor unit or a graphics processor, is an evaluation device.
- An arrangement of several Processors is also an evaluation device.
- the evaluation device is preferably implemented as a system-on-a-chip, ie all or at least a large part of the functions are integrated on one chip.
- the chip comprises, for example, a multi-core processor with central processing processors, referred to as Central Processing Unit, abbreviated CPU.
- the chip also includes graphics processors, referred to in English as the Graphic Processing Unit, or GPU for short. Graphics processors are particularly advantageous for parallel processing of processes.
- the evaluation device is thus advantageously a parallel computer.
- a parallel computer carries out processing operations simultaneously on, among other things, several main and / or graphics processors. Graphics processors are particularly suitable for parallel computing.
- the evaluation device is scalable, that is, the evaluation device can be adapted for different automation levels. Higher levels of automation require more computing power than lower levels of automation.
- Artificial intelligence is a generic term for the automation of intelligent behavior. For example, an intelligent algorithm learns to react appropriately to new information.
- An artificial neural network referred to as an artificial neural network, is an intelligent algorithm.
- An intelligent algorithm has to be learned to react appropriately to new information.
- an artificial intelligence In order to be able to react appropriately to new information, it is necessary that an artificial intelligence first learns the meaning of predetermined information using training data, inspired by the learning process of a brain.
- Training with training data is called machine learning.
- a subset of machine learning is deep learning, which uses a number of hierarchical layers of neurons, known as hidden layers, to carry out the machine learning process.
- Neurons are the functional units of an artificial neural network.
- An output of a neuron generally results as the value of an activation function evaluated via a sum of the inputs weighted with weighting factors plus a systematic error, the so-called bias.
- An artificial neural network with several hidden layers is a deep neural network.
- the artificial neural network is preferably a fully connected network, referred to as a fully connected network.
- a fully connected network each neuron in a layer is connected to all neurons in the previous layer.
- Each connection has its own weighting factor.
- the artificially neural network preferably comprises convolutional layers comprising a plurality of folding and / or poling layers known to the person skilled in the art.
- a filter is applied to a layer of neurons with the same weighting factors regardless of the position.
- the number of layers, the number of neurons, the type of activation function, the number of classes to be output and / or the determination of an absolute angle between the vehicle and the noise source and / or the distance of the noise source from the vehicle are variables that are artificial has optimized neural network in the training phase, preferably by minimizing a cost function.
- a vehicle control device is a device for regulating the longitudinal and / or transverse guidance of the vehicle.
- the vehicle control device includes actuators to implement vehicle guidance. With the a partially and / or highly automated operation of the vehicle is possible.
- An electronic control device abbreviated ECU, is a vehicle control device.
- An interface is a device between at least two functional units on which an exchange of logical variables, for example data, or physical variables, for example electrical signals, takes place, either only unidirectionally nal or bidirectional.
- the exchange can be analog or digital.
- the exchange can also be wired or wireless.
- kits describes the spatial juxtaposition of functionally coordinated individual components.
- the kit corresponds to a collection of the spatially separated individual components.
- the interface is preferably wireless.
- the roof fin preferably encloses an energy storage unit at least partially in order to provide energy for the provision of the signal.
- the interface is, for example, a WLAN interface with the WLAN standard IEEE 802.1 1 p, which was specially developed for vehicle communication.
- the interface is a Bluetooth interface, preferably a Bluetooth low-energy interface with significantly lower power consumption and a communication area similar to a classic Bluetooth interface.
- the interface is designed to transmit signals using 5G technology.
- 5G is a next generation mobile network with data rates up to 10 Gbit / s and latency times of less than 1 ms.
- the signal can advantageously be provided to other vehicles by means of so-called car-to-car communication, abbreviated C2C, or to a traffic infrastructure by means of so-called car-to-x-communication, abbreviated C2X.
- the energy storage unit is a battery.
- the roof fin can be connected to an electrical system of the vehicle via connection connections of a roof antenna.
- Connectable means mechanically and electrically connectable.
- the roof antenna includes connection options / connection recordings to an on-board network of the vehicle. These connection options already available for the roof antenna are used for the roof fin. This makes it particularly easy to connect the roof fin to a vehicle as a retrofit solution.
- the at least two sensors are advantageously arranged on the roof fin in such a way that they are protected against wind turbulence when the vehicle is traveling. Noise caused by wind turbulence is caused by a such arrangement minimized.
- the first and the second sensor are arranged in the back of the roof fin. Such an arrangement protects against wind from the direction of travel.
- the roof fin particularly preferably comprises a first and a second sound channel.
- the sound waves of the ambient noise are conducted to the first and the second sensor.
- a sound channel is a transmission path for sound waves.
- the first and / or the second sound channel are designed in such a way that the sound waves are optimally guided to a respective sensor, for example by reflection, when the respective sound channel penetrates the respective sound channel. Suitable mechanical measures are also, for example
- the first and / or the second sound channel comprise at least one first layer.
- the first layer conducts the sound waves and at least dampens interferences that impair the detection of the ambient noise.
- the first and / or the second sound channel preferably comprise a second layer.
- the second layer is water and / or wind tight and is designed to direct the sound waves to the first and / or second sensor.
- the first and / or the second sound channel particularly preferably comprise a third layer for protecting against the penetration of jet water and foreign bodies into the first and / or second sound channel.
- the first layer advantageously comprises a polyurethane filter foam.
- the second layer advantageously comprises a membrane made of polytetrafluoroethylene.
- the third layer advantageously comprises an open-pore diaphragm with 30 pores per inch and is in particular a barrier for insects.
- a roof fin according to the invention is preferably produced in the method according to the invention.
- the roof fin is advantageously connected to the vehicle.
- the roof fin is particularly preferably connected to a vehicle roof at a position of a roof antenna.
- Fig. 2 is a schematic representation of the roof fin from Fig. 1 a, 1 b
- Fig. 4 shows another embodiment of a roof fin
- Fig. 5 shows an embodiment of a kit according to the invention.
- the passenger car is a highly automated vehicle 1 and comprises driver assistance systems that support the driver in driving tasks.
- First and second sensors 11, 12 for detecting ambient noise and / or an evaluation device 13 for generating a control signal as a function of a detected ambient noise are, for example, a driver assistance system by means of which the vehicle can hear.
- the control signal is provided to a vehicle control device 2.
- the vehicle control device 2 is designed to control the vehicle 1 in a highly automated manner.
- the vehicle 1 is a partially automated vehicle 1 and supports the driver by perceiving the detected ambient noise. see, for example through visual, tactile and / or acoustic perception.
- the vehicle 1 comprises, for example, a human-machine user interface, referred to as human machine interface, or HMI for short.
- the HMI shows the driver, for example, that an emergency vehicle is approaching.
- the vehicle 1 comprises a roof fin 10.
- the roof fin 10 is shown enlarged in the detail of FIG. 1 b.
- the roof fin 10 is arranged on the vehicle roof of the vehicle 1 in the region of the gap between the vehicle roof and the tailgate.
- the roof fin 10 comprises a microphone as the first and the second sensor 11 and 12. 2 only one of the microphones is shown.
- the roof fin 10 comprises only a microphone in the form of an all-round microphone.
- Another exemplary embodiment of the invention provides that the roof fin 10 comprises an arrangement of more than two microphones, preferably at least four microphones.
- the roof fin 10 also includes an evaluation device 13.
- the evaluation device 13 is a platform. Several CPUs and GPUs are arranged on the platform, which process an intelligent algorithm using shared computing capacity and parallel computing.
- the intelligent algorithm is, for example, a convolutional neural network.
- the convolutional neural network is trained to determine a classification and a direction of the source of the sound signal relative to the evaluation device 13 upon input of a sound signal and, depending on this, to provide a control signal for the vehicle control device 2.
- the input is made via the at least first and / or second sensor 11, 12.
- the convolutional neural network determines that a fire service vehicle is approaching from the rear left.
- the vehicle control device 2 is braked by means of an interface 14 and the control signal is made available and driven to the right.
- the vehicle control device 2 controls the vehicle 1 as a function of this control signal and preferably as a function of further surroundings detection data from further surroundings sensors. right on the edge of the road.
- the convolutional neural network has learned to evaluate the air pressure fluctuations associated with the sound waves over time in order to obtain an object classification and distance-direction localization and to provide a control signal.
- the roof fin 10 comprises an interface 14.
- the interface 14 is, for example, a WLAN interface.
- the control signal of the vehicle control device 2 is provided via the interface 14.
- the roof fin 10 also includes an energy storage unit 15, for example in the form of a battery.
- the battery supplies the individual components of the roof fin 10 with electrical energy.
- the roof fin 10 is thus advantageously energy self-sufficient with regard to an on-board electrical system of the vehicle and can be retrofitted to the vehicle 1 in a particularly simple manner as a retrofit solution.
- the individual components of the roof fin 10 are also provided as a kit 20.
- the kit 20 is shown in FIG. 5.
- the kit includes the roof fin 10, the evaluation device 13, the interface 14 and the energy storage unit 15.
- Fig. 4 shows the roof fin 10 with a first and a second sound channel 16 and 17 in a sectional view.
- the first sound channel 16 guides the sound waves to the first sensor 11.
- the second sound channel 17 guides the sound waves to the second sensor.
- the sound channels 16, 17 each comprise an entrance area.
- the entrance area runs from an outside of the roof fin to a central point of the roof fin 10.
- a third layer 18c is arranged in front of the entrance area.
- the third layer 18c is an open-pore diaphragm with 30 PPI (pores per inch).
- the third layer 18c is a barrier to water jets and prevents foreign bodies, for example insects, from entering the sound channels 16, 17.
- the entrance area has a slope. Through the bevel, the sound waves that the third layer 18c have passed in the entrance area to a first layer 18a.
- the first layer 18a is arranged between the entrance area and a line area.
- the first layer 18a is a polyurethane filter foam.
- the first layer 18a is a barrier for wind and other disturbing noises and jet water, which is introduced into the sound channels 16, 17 at high pressure.
- the sound waves are conducted back and forth in the line area. This forward and backward routing of the sound waves leads to the sound waves being optimally guided to the least first and second sensors 11, 12 by reflections.
- a second layer 18b is arranged at one end of each line region.
- the second layer 18b is a membrane made of polytetrafluoroethylene.
- the second layer is a barrier to water and other foreign objects. The sound waves are transmitted from the second layer.
- a sound transducer of the at least first and second sensors 11, 12 is arranged at the end of the second layer 18b opposite the line region.
- the sound transducers are vibration sensors.
- the roof fin 10 is connected to the vehicle electrical system 1 via connection connections of a roof antenna.
- the method for producing a roof fin 10 is shown schematically in FIG. 3.
- a first method step V1 the individual parts of the kit 20 are provided.
- the individual parts are assembled in a second method step V2.
- the roof fin 10 thus obtained encloses the at least first and second sensors 11, 12, the evaluation device 13 and the interface 14.
- a third method step V3 the roof fin 10 is connected to the vehicle 1.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018210488.3A DE102018210488B4 (de) | 2018-06-27 | 2018-06-27 | Dachfinne für ein Fahrzeug zur Erfassung von Umgebungsgeräuschen, Fahrzeug mit einer derartigen Dachfinne, Bausatz für eine an einem Fahrzeug nachrüstbare Dachfinne und Verfahren zum Herstellen einer Dachfinne |
| PCT/EP2019/063591 WO2020001892A1 (de) | 2018-06-27 | 2019-05-27 | Dachfinne für ein fahrzeug zur erfassung von umgebungsgeräuschen, fahrzeug mit einer derartigen dachfinne, bausatz für eine an einem fahrzeug nachrüstbare dachfinne und verfahren zum herstellen einer dachfinne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3814794A1 true EP3814794A1 (de) | 2021-05-05 |
Family
ID=66676513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19727346.9A Withdrawn EP3814794A1 (de) | 2018-06-27 | 2019-05-27 | Dachfinne für ein fahrzeug zur erfassung von umgebungsgeräuschen, fahrzeug mit einer derartigen dachfinne, bausatz für eine an einem fahrzeug nachrüstbare dachfinne und verfahren zum herstellen einer dachfinne |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3814794A1 (de) |
| DE (1) | DE102018210488B4 (de) |
| WO (1) | WO2020001892A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019212424B3 (de) * | 2019-08-20 | 2020-10-22 | Audi Ag | Fahrzeugdachantenne für ein Fahrzeug, sowie Kraftfahrzeug |
| DE102019219525B3 (de) | 2019-12-13 | 2020-08-06 | Zf Friedrichshafen Ag | Schallwandler für eine Aufnahme von Außengeräuschen für ein Fahrzeug, und Fahrzeug mit Schallwandler |
| GB2591756A (en) * | 2020-02-05 | 2021-08-11 | Daimler Ag | A method for warning a user of a motor vehicle after detecting a motor vehicle with special authorization, as well as detection device |
| DE102020107775A1 (de) | 2020-03-20 | 2021-09-23 | Bayerische Motoren Werke Aktiengesellschaft | Erkennung und Interpretation akustischer Signale und Ereignisse im Fahrzeugaußen- und/oder Innenraum |
| US11483649B2 (en) | 2020-08-21 | 2022-10-25 | Waymo Llc | External microphone arrays for sound source localization |
| DE102021117311B4 (de) * | 2021-07-05 | 2024-08-22 | Spleenlab GmbH | Steuer- und Navigationsvorrichtung für ein autonom bewegtes System und autonom bewegtes System |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6148210A (ja) * | 1984-08-14 | 1986-03-08 | Nissan Motor Co Ltd | 車両用音響装置 |
| JP4684012B2 (ja) * | 2005-06-03 | 2011-05-18 | 株式会社オーディオテクニカ | 狭指向性マイクロホン |
| US7711136B2 (en) * | 2005-12-02 | 2010-05-04 | Fortemedia, Inc. | Microphone array in housing receiving sound via guide tube |
| DE102013206519B4 (de) | 2013-04-12 | 2023-08-17 | Bayerische Motoren Werke Aktiengesellschaft | Antennensystem für ein Fahrzeug und Verfahren zur Herstellung eines solchen Antennensystems |
| DE102014012184B4 (de) * | 2014-08-20 | 2018-03-08 | HST High Soft Tech GmbH | Vorrichtung und Verfahren zur automatischen Erkennung und Klassifizierung von akustischen Signalen in einem Überwachungsbereich |
| DE102014225803A1 (de) * | 2014-12-15 | 2016-06-16 | Bayerische Motoren Werke Aktiengesellschaft | Erkennen eines im Einsatz befindlichen Einsatzfahrzeuges im Straßenverkehr |
| US9873428B2 (en) * | 2015-10-27 | 2018-01-23 | Ford Global Technologies, Llc | Collision avoidance using auditory data |
| DE102016006802A1 (de) | 2016-06-03 | 2016-12-08 | Daimler Ag | Verfahren und Vorrichtung zur Erfassung zumindest eines von einem Einsatzfahrzeug ausgehenden Sondersignals |
| DE102016221858B4 (de) | 2016-11-08 | 2022-03-03 | Continental Teves Ag & Co. Ohg | Dachfinne und Fahrzeug mit einer solchen Dachfinne |
| KR102710789B1 (ko) * | 2016-12-09 | 2024-09-26 | 현대자동차주식회사 | 후방 차량의 시각화 정보 제공 장치 및 방법 |
-
2018
- 2018-06-27 DE DE102018210488.3A patent/DE102018210488B4/de active Active
-
2019
- 2019-05-27 WO PCT/EP2019/063591 patent/WO2020001892A1/de not_active Ceased
- 2019-05-27 EP EP19727346.9A patent/EP3814794A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018210488B4 (de) | 2020-01-09 |
| DE102018210488A1 (de) | 2020-01-02 |
| WO2020001892A1 (de) | 2020-01-02 |
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