CN110580098A - method and device for generating a predetermined sound wave rated pressure at a variable position of an operating space, and operating device for a device of a vehicle - Google Patents

method and device for generating a predetermined sound wave rated pressure at a variable position of an operating space, and operating device for a device of a vehicle Download PDF

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Publication number
CN110580098A
CN110580098A CN201910487481.6A CN201910487481A CN110580098A CN 110580098 A CN110580098 A CN 110580098A CN 201910487481 A CN201910487481 A CN 201910487481A CN 110580098 A CN110580098 A CN 110580098A
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Prior art keywords
sound
emitter
location
sound emitter
pressure
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Granted
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CN201910487481.6A
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CN110580098B (en
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P·希伯
S·梅尔
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1688—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being integrated loudspeakers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computer Hardware Design (AREA)
  • Signal Processing (AREA)
  • Otolaryngology (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The method proposed here relates to a method for generating a predetermined acoustic wave rated pressure at a variable position (125) of an operating space (110). The method comprises a measuring step, a selecting step, a determining step and a setting step. The position (125) is determined in the determining step. In the selecting step, at least one sound emitter (160) of the sound emitter device (115) is selected, wherein the sound emitter (160) has an emission area comprising the location (125). In the determining step, an emitter distance between the determined position (125) and the selected sound emitter (160) is determined. In a setting step, sound emitter parameters of the selected sound emitter (160) are set in dependence on the determined emitter distance, so that a predetermined sound wave setpoint pressure can be generated at the location (125) by actuating at least one of the set sound emitters (160).

Description

Method and device for generating a predetermined sound wave rated pressure at a variable position of an operating space, and operating device for a device of a vehicle
Technical Field
The measures are based on an apparatus or method according to the class of the independent claims. The subject of the present measure is also a computer program.
Background
WO2016/038347a1 describes a system and method for generating haptic information, wherein sound waves for haptic sensation can be provided at predetermined positions.
Disclosure of Invention
Against this background, with the measures proposed here, a method for generating a predetermined sound wave setpoint pressure at a variable position of an operating space is proposed according to the independent claims, furthermore a device using this method and a corresponding computer program are proposed, and finally an operating device for a vehicle with a device is proposed. Advantageous refinements and improvements of the device specified in the independent claims are possible by means of the measures set forth in the dependent claims.
the advantage that can be achieved with the proposed measures is that a predetermined sound wave setpoint pressure can be provided at a variable position by the method presented here. Thus, it is possible for one person or different persons to sense the tactile feedback produced by means of a predetermined sound wave pressure rating at a constant intensity at different locations of the operating space. This achieves an improved operational safety in operation.
A method for generating a predetermined acoustic wave setpoint pressure at a variable position of an operating space is proposed. The method comprises a measuring step, a selecting step, a determining step and a setting step. The position is determined in the determining step. In the selecting step, at least one sound emitter of the sound emitter device is selected, wherein the sound emitter has an emission area including the location. In the determination step, the transmitter distance between the determined position and the sound transmitter is determined. In the setting step, sound emitter parameters of the selected sound emitter are set in dependence on the determined emitter distance to allow a predetermined sound wave pressure rating to be generated at the location by actuation of at least one of the set sound emitters.
The method may be implemented, for example, in software or hardware or in a hybrid form of software and hardware, for example, in a control unit or device.
The acoustic nominal pressure may be a determined acoustic pressure that should be used to generate the desired tactile feedback at the person. Using the methods presented herein, such desired haptic feedback may advantageously have a constant intensity at variable positions.
A three-dimensional space is understood to be an operating space in which the position can be recognized, for example, by a camera. The relevant position can thus be determined using suitable identification means. For this purpose, for example, the sensor signals of the sensor device can be evaluated to determine an object located at the position, for example the hand of the user or one or more fingers of the hand of the user. Such an interaction in 3D space may be, for example, a gesture control. For example, a holographic brush or the like can be seen in three-dimensional space.
By determining the transmitter distance, one parameter or several parameters of the sound waves emitted by the sound transmitter can be identified, such as the expected sound pressure of the sound waves at the location.
For example, in the selecting step, a calculation of the available sound waves at the location may be achieved. According to one embodiment of the method, when the position is determined in a three-dimensional coordinate system having an x-axis, a y-axis and a z-axis representing the depth, the calculation of the usable sound wave at the z-coordinate of the determined position is carried out in the coordinate system.
In the setting step, the sound wave pressure to be output and/or the sound wave emitting time of the selected sound emitter may be set as the sound wave parameter. Here, the acoustic wave pressure to be output may be set based on a difference between the expected acoustic wave pressure without the setting step and the acoustic wave rated pressure, for example. Acoustic wave pressure allows tactile aerial feedback, particularly by ultrasound.
For example, a higher acoustic pressure to be output may be set when a higher transmitter distance has been determined, or a lower acoustic pressure to be output may be set when a lower transmitter distance relative to the higher transmitter distance has been determined, to achieve an acoustic nominal pressure at that location.
If several sound emitters are selected in the selecting step, the sound wave emission time of the selected sound emitter set in the setting step may result in a suitable superposition of the sound wave with one or more further sound waves at the location, since the location has been determined in the emission area of the several sound emitters, resulting in a sound wave nominal pressure.
In the selecting step, at least one further sound emitter of the sound emitter device may be selected, wherein the further sound emitter has a further emission area comprising the position. In the determining step, a further emitter distance between the further selected sound emitter and the location may be determined. In the setting step, the sound emitter parameter can be set as a function of the further emitter distance and/or a further sound emitter parameter of a further selected sound emitter can be set as a function of the further emitter distance and/or the emitter distance, so that a predetermined sound wave setpoint pressure can be generated at the location by additionally actuating the set further sound emitter. The sound wave pressure rating can thus be generated by superimposing a plurality of sound waves. This is for example helpful when there is a large distance between the sound reflector arrangement and the location.
In this case, in the setting step, a further sound wave pressure and/or a further sound wave emission time of the further selected sound emitter can be set. The set sonic pressure may be different from the set additional sonic pressures. Accordingly, the set sound wave emission time may be different from the set additional sound wave emission time.
In the setting step, further sound emitter parameters may be set according to the set sound emitter parameters.
in the setting step, a sound emitter parameter may be set that achieves a first sound wave pressure at the location, and a further sound emitter parameter may be set that achieves a second sound wave pressure at the location, wherein the first sound wave pressure corresponds to the second sound wave pressure. This allows multiple sound waves of different sound emitters to overlap each other at the same sound pressure to produce a sound pressure rating at that location.
According to an advantageous embodiment of the method, when a changed position different from the position is determined in the determination step, the selection step, the determination step and the setting step can be repeated with respect to the changed position. This allows tracking of the sound wave pressure rating at the changed location, thereby providing a consistent tactile sensation to the person even at the changed location.
It is also advantageous if the method has a drive step in which the at least one sound emitter selected in the selection step is driven using sound emitter parameters in order to generate a predefined sound wave setpoint pressure at the location. In the actuation step, the selected further sound emitter may also be actuated, using further sound emitter parameters, to generate a predetermined sound wave nominal pressure at the location.
In the measuring step, the position is measured as an object position of the object. The object may be, for example, a limb of a human being, such as a hand, in particular a finger or a fingertip of a person. Thus, the method is applied to a three-dimensional operating space. Alternatively, the described measures can be used for two-dimensional operating spaces, for example in the form of touch-sensitive surfaces, where the sound can be structure-borne sound. In the determining step, the position may also be determined as an object position of the object in the three-dimensional space.
In the determination step, the position may be determined with the use of an image capturing device. The image capture device may include a camera.
in the selection step, an ultrasonic transmitter of the ultrasonic transmitter device can be selected as sound transmitter, and in the setting step, the ultrasonic transmitter parameter is suspended as sound transmitter parameter depending on the determined transmitter distance, so that a predetermined acoustic nominal pressure in the form of a predetermined ultrasonic pressure can be generated at the location by actuating at least one set ultrasonic transmitter.
The ultrasonic transmitter parameter may be ultrasonic pressure and/or ultrasonic transmission time.
The measures set forth herein also provide an apparatus configured to perform, control or implement the steps of the variants of the methods presented herein in the respective units. In addition, the object based on the measure can be achieved quickly and efficiently by means of such a design variant of the measure in the form of a device.
To this end, the device may comprise at least one computing unit for processing signals or data, at least one memory unit for storing signals or data, at least one interface to the sensors or actuators for reading in sensor data from the sensors or for outputting data or sensor signals to the actuators, and/or at least one communication interface for reading in or outputting data, which data is embedded in a communication protocol. The computing unit may be, for example, a signal processor, a microcontroller or the like, wherein the memory unit may be a flash memory, an EPROM or a magnetic memory unit. The communication interface can be designed to read in or output data wirelessly and/or by wire, wherein the communication interface, which can read in or output the data connected by wire, can read in these data from the respective data transmission line and can output them into the respective data transmission line, for example electrically or optically.
In the present case, an apparatus can be understood as an electrical device which processes the sensor signal and outputs a control and/or data signal in dependence thereon. The device can have an interface, which can be designed in hardware and/or software. In the hardware design, the interface may be part of a so-called system ASIC, for example, which includes the various functions of the device. However, the interfaces may also be integrated circuits of their own or at least partly composed of discrete components. In the case of a software design, the interface may be a software module which is present, for example, on a microcontroller, in addition to other software modules.
In an advantageous embodiment, the device controls at least one setting signal, the setting of the sound emitter parameters of the sound emitter being carried out as a function of the determined emitter distance. For this purpose, the device can access sensor signals, for example identification signals, which represent the determined position. The control is effected by an actuator, for example a read-in device, which is designed to read in an identification signal, and/or a selection device, which is designed to select at least one sound emitter of the sound emitters, wherein the sound emitter has an emission region that includes the position, and/or a determination device, which is designed to determine an emitter distance between the determined position and the sound emitter, and/or an output device, which is designed to output a setting signal.
An operating device for a vehicle has an operating space, a sound-emitting device and the proposed device. Such an operating device can be used for operating one or more vehicle settings or vehicle functions of the vehicle, wherein the operating device advantageously allows a consistent tactile feedback to the operator when implementing the operating function performed in the operating space by the device.
It is also advantageous to have a computer program product or a computer program with a program code, also referred to as program code means, which can be stored on a machine-readable carrier or storage medium, such as a semiconductor memory, a hard disk memory or an optical memory, and is used to execute, implement and/or actuate the steps of the method according to the above-described design, in particular when the program product or program is executed on a computer or a device comprising a computing unit or computer.
Drawings
Embodiments of the measures proposed herein are shown in the drawings and are explained in more detail in the following description. The figures show that:
Fig. 1 shows an operating device for a vehicle, having an operating space, a sound-emitting device and a device according to an exemplary embodiment for generating a predetermined sound wave setpoint pressure at a variable position of the operating space;
FIG. 2 illustrates an apparatus for generating a predetermined acoustic pressure rating at a variable location of an operating space, according to an embodiment;
Fig. 3 is a flow chart of a method for generating a predetermined acoustic wave rated pressure at a variable position of an operating space according to an embodiment.
Detailed Description
In the following description of an advantageous embodiment of the method, the same or similar reference numerals are used for the elements shown in the various figures and functioning similarly, wherein repeated descriptions of these elements are omitted.
If an embodiment contains "and/or" -a relation between a first feature and a second feature, it can be assumed that this embodiment has not only the first feature but also the second feature according to one design and either the first feature or the second feature according to another embodiment.
Fig. 1 shows an operating device 100 for a vehicle 105, having an operating space 110, a sound-emitting device 115 and, according to an exemplary embodiment, a device 120 for generating a predetermined sound wave setpoint pressure at a variable position 125 of the operating space 110.
The operating device 100 is designed for use in a vehicle 105. The operating device 100 has an operating space 110, a sound emitting device 115 and a device 120. According to this embodiment, the operating device 100 is designed to be able to operate one or more vehicle settings or vehicle functions of the vehicle 100 by gestures performed by a person (e.g. a person's finger) within the operating space 110. According to this embodiment, the operating space 110 is formed, by way of example only, in two dimensions, in which at least one touch-sensitive element is optionally arranged. According to an alternative embodiment, the operating space 110 is formed three-dimensionally, wherein the position 125 in space is determined by means of an image-capturing device 130. In this case, according to one exemplary embodiment, the position 125 is not a fixed, predetermined position, but a position that can be freely selected by a person in the region of the operating space 110.
The device 120 is designed to generate or at least achieve a predetermined acoustic pressure rating at the variable location 125. For this purpose, the device 120 has a read-in device 135, a selection device 140, a determination device 145 and an output device 150.
The reading device 135 is designed to read an identification signal 155 indicating the position 125 to be measured. The selection device 140 is designed to select at least one sound emitter 160 of the sound emitter device 115, wherein the sound emitter 160 has an emission area comprising the position 125. For example, the sound emitter 160 is designed to emit ultrasonic waves.
the determination means 145 are designed to determine the transmitter distance between the determined position 125 and the selected sound transmitter 160. The output device 150 is designed to output a setting signal 165 which, depending on the determined transmitter distance, effects a setting of the selected sound transmitter parameters of the sound transmitter 160 in order to achieve a sound wave setpoint pressure at the location 125 of the operating space 110 by actuating the sound transmitter 115.
According to this embodiment, the sound emitting device 115 is arranged adjacent to the operating space 110 and has at least one additional sound emitter 170 which does not have an emitting area comprising the position 125 and is therefore not selected and set by the device 120.
According to this exemplary embodiment, the selection device 140 selects a further sound emitter 180 of the sound emitter device 115, wherein the further sound emitter 180 has a further emission region comprising the location 125, wherein the determination device 145 determines a further emitter distance between the further sound emitter 180 and the location 125, wherein the determination device 145 sets a sound emitter parameter as a function of the further emitter distance and/or sets a further sound emitter parameter of the further sound emitter 180 as a function of the further emitter distance and/or sets the emitter distance by means of a further setting signal 185, such that a predefined sound wave setpoint pressure is generated at the location 125 by means of a further actuation of the set further sound emitter 180.
According to this embodiment, the sound wave pressure and/or the sound wave emission time to be output of the selected sound emitter 160 is set to the sound wave parameter by the setting signal 165, and/or the sound wave pressure and/or the sound wave emission time to be output of the selected further sound emitter 180 is set to the further sound wave parameter by the further setting signal 185.
According to this embodiment, the further setting signal 185 sets the further sound emitter parameters according to the set sound emitter parameters.
According to this embodiment, the setting signal 165 is used to set a sound emitter parameter that achieves a first sound wave pressure at the location 125, and the further setting signal 185 is used to set a further sound emitter parameter that achieves a second sound wave pressure at the location 125, wherein the first sound wave pressure corresponds to the second sound wave pressure.
According to this exemplary embodiment, the reading device 135 reads in an identification signal 155, the measured position 125 of which has been determined as the object position of the object.
According to this embodiment, the position 125 is determined using touch-sensitive buttons arranged in the operating space 110 and/or using the image capturing device 130. The use of the image capture device 130 is suitable, for example, in the case of gesture control or for recognizing a movement of a holographic control element (for example, a brush) projected into the operating space 100.
According to this embodiment, the sound emitters 160, 180, 170 are ultrasonic emitters which are designed to emit sound waves in the form of ultrasonic waves.
In the following, the details of the device 120 will be described in more detail again:
The device 120 presented herein can optimize haptic aerial feedback by adjusting acoustic wave pressure.
As the distance of the hand 190 from the emitter device 115 increases, the intensity of the reflection (also referred to as feedback) decreases. However, consistent feedback can be achieved by means 120 presented herein. Thus, the device 120 proposed herein advantageously enables a constant feedback intensity to be obtained independently of the distance of the person's hand 190 from the emitter device 115. The distance to the emitter device 115 is due in part to the different body sizes of the persons and/or the different arm lengths of the persons resulting therefrom.
The sound waves of the sound emitters 160, 180 may be emitted by the device 120 offset so as to be able to be superimposed at different points of intersection. The early emitted sound wave has a lower intensity at time point x than the later emitted sound wave. At a greater distance from the sound emitter, a plurality of sound waves may be superimposed at that distance, although the sound wave pressure of the sound waves is lower. Thus, the equalization of the acoustic pressure is also dependent on it.
The device 120 allows for better feedback because the intensity is independent of distance. Thus, an optimal feedback for different user groups is guaranteed. Due to the expansion of the feedback space, the operator error caused by the user is reduced in depth.
Now, the functionality of the apparatus 120 is again summarily described in further statements:
first, the position of the hand in space (x, y, z coordinates) is determined using a camera 125. Thereafter, the distance of the hand 190 to the transmitter is calculated and the available sound waves are calculated at position z. Then, based on the distance and the number of available sound waves, a matching of the sound wave pressure to be achieved is achieved in increments. The matching of the acoustic pressure of the respective acoustic emitters 160, 180 is achieved based on the calculated Deltas.
Fig. 2 shows a device 120 for generating a predetermined acoustic nominal pressure at a variable position 125 of an operating space according to an embodiment.
This may be the apparatus 120 described with reference to fig. 1.
according to this embodiment, the operation space described in fig. 1 is formed as a three-dimensional space. According to this embodiment, the measured position shown in fig. 1 is changed from the measured position shown in fig. 2. According to the exemplary embodiment illustrated in fig. 1, the sound emitter parameters of the sound emitter 160 and the further sound emitter parameters of the further sound emitter 180 are set accordingly with respect to the changed position 200. The changed position 200 shown here is arranged according to this exemplary embodiment in the emission region of the sound emitter 160, of the further sound emitter 180 and of the additional sound emitter 170. Thus, according to this embodiment, the additional acoustic transmitter 170 is selected by the device 120 and, as described in FIG. 1, the additional transmitter distance of the additional acoustic transmitter 170 to the changed measured position 200 is determined and the additional acoustic transmitter parameters of the additional acoustic transmitter 170 are set so that a predetermined acoustic wave pressure rating can be generated at the changed measured position 200.
According to this embodiment, the device 120 further includes a driver that controls the selected acoustic emitters 160, 170, 180 to produce a predetermined acoustic nominal pressure at the changed location 200 using the respective acoustic emitter parameters of the selected acoustic emitters 160, 170, 180. For this purpose, the device 120 is coupled to the sound emitter via a suitable interface for transmitting the setting signal and/or the control signal. In this case, the sound emitters 160, 170, 180 are controlled according to this exemplary embodiment such that the sound waves emitted by the sound emitters 160, 170, 180 each have the same sound pressure at the determined location 200.
It can be seen here that, advantageously, a superposition of equally strong sound waves 205 of the individual sound emitters 160, 170, 180 takes place at the changed position 200.
Here, according to this exemplary embodiment, the sound pressure is adapted in increments, i.e. in dependence on the different distances between the sound emitters 160, 170, 180 and the position to be determined, and in dependence on the number of sound waves available per sound emitter 160, 170, 180, so that the same intensity occurs at the intersection point, i.e. at the position to be determined 200, independently of the distance.
The method proposed herein can be identified by measurements with acoustic pressure measurement devices at different distances from the acoustic emitters 160, 170, 180.
According to this embodiment, the first arrow 210 represents the variability of at least one acoustic emission time (also referred to as time) of the device 120 in order to achieve an acoustic nominal pressure at the determined location 200. A second arrow 215 represents the variability of at least a plurality of acoustic emitters 160, 170, 180 to be actuated by the device 120 to achieve acoustic pressure ratings at the determined location 200. The third arrow 220 represents the same acoustic pressure in the plurality of emitted acoustic waves 205 at the determined location 200. The same sonic pressure of the plurality of sonic waves 205 may be achieved by the device 120 to achieve a sonic nominal pressure at the determined location 200.
Fig. 3 shows a flow diagram of a method 300 for generating a predetermined acoustic wave rated pressure at a variable position of an operating space according to an embodiment.
A method 300 is referred to herein as being performed or controlled by one of the devices described with reference to one of the preceding figures.
The method 300 includes a determination step 305, a selection step 310, a determination step 315, and a setting step 320. Optionally, the method 300 according to this embodiment further comprises an output step 325.
The position is determined in a determination step 305. At least one sound emitter of the sound emitters is selected in a selection step 310, wherein the sound emitter has an emission area comprising the location. In a determination step 315, the transmitter distance between the determined position and the selected transmitter is determined. In a setting step 320, sound emitter parameters of the selected sound emitter are set as a function of the determined emitter distance, in order to be able to generate a predefined sound wave setpoint pressure at the location by actuating at least one set sound emitter.
According to this embodiment, in the setting step 320, the sound wave pressure to be output and/or the sound wave emission time of the sound emitter are set as the sound wave parameters.
According to this embodiment, in a selection step 310, at least one additional sound emitter assigned to the sound emitter device of the location is selected, wherein the further sound emitter has a further emission area comprising the location, wherein in the determination step 315 a further emitter distance between the further sound emitter and the location is determined. Wherein in a setting step 320, the sound emitter parameters are set as a function of the further emitter distance and/or the further sound emitter parameters of the further sound emitter are set as a function of the further emitter distance and/or the emitter distance, in order to be able to generate a predetermined sound wave setpoint pressure at the location by further actuating the set further sound emitter.
In a setting step 320, according to this embodiment, further sound emitter parameters are set according to the set sound reflector parameters.
According to this embodiment, in a setting step 320, a sound emitter parameter is set, which sound emitter parameter achieves a first sound wave pressure at the location, and a further sound emitter parameter is set, which further sound reflector parameter achieves a second sound wave pressure at the location, the first sound wave pressure corresponding to the second sound wave pressure.
When a changed position different from this position is determined in the determination step 305, the selection, determination and setting steps 310, 315, 320 are repeated according to this embodiment with respect to this changed position.
According to this embodiment, in a determination step 305, the position is determined as an object position of the object.
According to this embodiment, in a determination step 305, the position is determined using an image capturing device.
In a selection step 310, according to the present exemplary embodiment, an ultrasonic transmitter of the ultrasonic transmitter device is selected as a sound transmitter, and in a setting step 320, an ultrasonic transmitter parameter of the ultrasonic transmitter is set as a sound transmitter parameter as a function of the determined transmitter position, in order to be able to generate a predetermined sound wave setpoint pressure in the form of a predetermined ultrasonic pressure at the position by actuating at least one set ultrasonic transmitter.
according to this embodiment, in an actuation step 325, the at least one sound emitter selected in the selection step 310 is actuated using sound emitter parameters such that a predetermined sound wave nominal pressure is generated at the location.

Claims (14)

1. A method (300) for generating a predetermined acoustic wave rated pressure at a variable position (125) in an operating space (110), wherein the method (300) comprises the steps of:
Determining (305) a location (125);
Selecting (310) at least one sound emitter (160) of a sound emitter device (115), wherein the sound emitter (160) has an emission area comprising the location (125);
Determining (315) an emitter distance between the determined location (125) and the sound emitter (160); and
Setting (320) selected sound emitter parameters of the sound emitter (160) according to the determined emitter distance to allow the predetermined sound wave nominal pressure to be generated at the location (125) by actuation of at least one of the set sound emitters (160).
2. The method (300) according to claim 1, wherein in the setting step (320) a sound wave pressure and/or a sound wave emission time to be output of the sound emitter (160) is set as a sound wave parameter.
3. The method (300) according to any one of the preceding claims, wherein in the selecting step (310) at least one further sound emitter (180) of the sound emitter device (115) is selected, wherein the further sound emitter (180) has a further emission area comprising the location (125), wherein in the determining step (315) a further emitter distance between the further sound emitter (180) and the location (125) is determined, wherein in the setting step (320) the sound emitter parameter is set depending on the further emitter distance and/or a further sound emitter parameter of the further sound emitter (180) is set depending on the further emitter distance and/or the emitter distance, in order to be able to be controlled at the location (125) by a further actuation of the set further sound emitter (180) To generate the predetermined acoustic nominal pressure.
4. The method (300) of claim 3, wherein in the setting step (320), the further sound emitter parameter is set in accordance with the set sound emitter parameter.
5. The method (300) according to any one of claims 3-4, wherein in the setting step (320) a sound emitter parameter is set, the sound emitter parameter achieving a first sound wave pressure at the location (125), and a further sound emitter parameter is set, the further sound emitter parameter achieving a second sound wave pressure at the location (125), wherein the first sound wave pressure corresponds to the second sound wave pressure.
6. The method (300) according to any one of the preceding claims, wherein the selecting step (305), the determining step (315) and the setting step (320) are repeated in relation to a changed position (200) when a changed position (200) different from the position (125) is determined in the determining step (305).
7. The method (300) according to any one of the preceding claims, having a step of actuating (325) in which at least one of the sound emitters (160) selected in the step of selecting (310) is actuated with the sound emitter parameters to cause the predetermined sound wave nominal pressure to be generated at the location (125).
8. The method (300) according to any one of the preceding claims, wherein in the determining step (305) the position (125) is determined as an object position of an object.
9. The method (300) according to any one of the preceding claims, wherein the position (125) is determined in the determining step (305) using an image capturing device (130).
10. The method (300) according to any one of the preceding claims, wherein in the selecting step (310) an ultrasonic emitter of an ultrasonic emitting device is selected as the sound emitter (160) and in the setting step (320) an ultrasonic emitter parameter of the ultrasonic emitter is selected as the sound emitter parameter depending on the determined emitter distance, such that the predetermined acoustic nominal pressure in the form of a predetermined ultrasonic pressure can be generated at the location (125) by actuating at least one set ultrasonic emitter.
11. An apparatus (120) configured to perform and/or control the method (300) according to any one of the preceding claims in a respective unit (135, 140, 145, 150).
12. An operating device (100) for a vehicle (105) having an operating space (110), a sound-emitting device (115) and a device (120) according to claim 11.
13. A computer program having program code means configured to perform and/or control a method (300) according to any one of claims 1 to 10 when executed using a computing unit.
14. A machine readable storage medium on which a computer program according to claim 13 is stored.
CN201910487481.6A 2018-06-11 2019-06-05 Method and device for generating a predetermined sound wave target pressure at a variable position of an operating space, and operating device for a device of a vehicle Active CN110580098B (en)

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