[go: up one dir, main page]

WO2012066672A1 - Procédé et dispositif de production de son d'avertissement de véhicule - Google Patents

Procédé et dispositif de production de son d'avertissement de véhicule Download PDF

Info

Publication number
WO2012066672A1
WO2012066672A1 PCT/JP2010/070654 JP2010070654W WO2012066672A1 WO 2012066672 A1 WO2012066672 A1 WO 2012066672A1 JP 2010070654 W JP2010070654 W JP 2010070654W WO 2012066672 A1 WO2012066672 A1 WO 2012066672A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
vehicle
unit
frequency characteristic
outside
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.)
Ceased
Application number
PCT/JP2010/070654
Other languages
English (en)
Japanese (ja)
Inventor
旬平 岡本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Priority to JP2011544528A priority Critical patent/JP4892119B1/ja
Priority to PCT/JP2010/070654 priority patent/WO2012066672A1/fr
Publication of WO2012066672A1 publication Critical patent/WO2012066672A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching

Definitions

  • the present invention relates to a vehicle-like sound generation device, a vehicle-like sound generation method, a vehicle-like sound generation program, and a recording medium on which the vehicle-like sound generation program is recorded.
  • the notification sound corresponds to the surrounding environment, such as the surrounding situation specified from the captured surrounding video, the detected ambient noise level, and the surrounding area attribute specified from the detected current position.
  • Patent Document 1 hereinafter referred to as “conventional example”.
  • the surrounding situation such as whether or not there is a child or an elderly person is specified based on the surrounding image. Then, based on the specified ambient situation, a notification sound having a sound quality and volume suitable for the identified ambient situation is output. For example, in a surrounding situation where a child or an elderly person is present in the surroundings, the volume of the notification sound is controlled so as to gradually increase the volume from a low volume state, or the notification sound is set as a melody sound.
  • a notification sound of sound quality and volume that does not cause discomfort to surrounding pedestrians and residents is output.
  • the volume of the notification sound is controlled so as to gradually increase the volume from a low volume state, or the notification sound is made a melody sound.
  • the attribute of the surrounding area is specified based on the current position. And based on the specified attribute, the notification sound of the sound quality and sound volume suitable for the specified attribute is output. For example, when the surrounding area is a residential area, the volume of the notification sound is set low, and when the surrounding area is a downtown area, the volume of the notification sound is set high.
  • a notification sound having the same sound quality and volume is output.
  • a notification sound having the same sound quality and volume is output from the plurality of vehicles. Therefore, a situation may occur in which it is not possible to properly grasp the distance to each of the plurality of vehicles and the vehicle speed of each of the plurality of vehicles. When such a situation occurs, a pedestrian or the like cannot quickly take an appropriate measure for ensuring safety.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a new vehicle-evoked sound generating apparatus and vehicle-evoked sound generating method capable of optimizing vehicle-evoked sounds.
  • a vehicle-evoked sound generating device that outputs a vehicle-evoked sound from a sound output unit to the outside of the vehicle, wherein the vehicle is based on a sound collection result of the sound outside the vehicle.
  • An analysis unit that analyzes a frequency characteristic of an external sound; a supply unit that sends a sound signal toward the sound output unit; and a control unit that controls the supply unit, wherein the control unit outputs the sound output A frequency characteristic different from that of the sound outside the vehicle based on a comparison result between the frequency characteristic of the sound signal supplied to the part and the frequency characteristic of the sound outside the vehicle obtained by the analysis part.
  • the vehicle recalling sound generator is characterized in that the supply unit is controlled to send a sound signal corresponding to the sound to the sound output unit.
  • the present invention includes a supply unit that transmits a sound signal toward a sound output unit, and is used in a vehicle-recollection sound generator that outputs a vehicle-recall sound from the sound output unit to the outside of the vehicle.
  • a vehicle recalling sound generation method comprising: analyzing a frequency characteristic of a sound outside the vehicle based on a sound collection result of a sound outside the vehicle; and a sound signal supplied to the sound output unit And a signal corresponding to a sound having a frequency characteristic different from the sound outside the vehicle based on a comparison result between the frequency characteristic of the sound and the frequency characteristic of the sound outside the vehicle obtained in the analysis step, And a control step of performing control on the supply unit to be sent to the sound output unit.
  • the present invention is a vehicle-evoked sound generation program that causes a calculation unit to execute the vehicle-evoked sound generating method of the present invention.
  • the present invention is a recording medium in which the vehicle-like sound generation program of the present invention is recorded so as to be readable by a calculation unit.
  • FIG. 1 is a block diagram schematically showing a configuration of a vehicle recalling sound generator according to a first embodiment of the present invention. It is a block diagram which shows roughly the structure of the vehicle recalling sound generator which concerns on 2nd Embodiment of this invention. It is a block diagram which shows roughly the structure of the vehicle-like sound generator which concerns on one Example of this invention. It is a figure for demonstrating the content of the sound source information of FIG. It is a figure for demonstrating the content of the waveform table of FIG. It is a figure for demonstrating the content of the waveform information of FIG. It is a figure for demonstrating the waveform corresponding to the sound data sequence in the waveform information of FIG.
  • FIG. 1 shows a schematic configuration of a vehicle-like sound generation device 700A according to the first embodiment.
  • a vehicle recalling sound generator 700A is mounted on an electric vehicle MV (hereinafter referred to as “vehicle MV”), and a sound output unit 790 is connected thereto.
  • vehicle MV electric vehicle MV
  • the sound output unit 790 includes a speaker. This sound output unit 790 outputs the vehicle-recollected sound according to the output sound signal sent from the vehicle-recollected sound generating device 700A toward the outside of the vehicle MV.
  • vehicle recall sound is a sound that can notify a pedestrian or the like of the presence of the vehicle MV.
  • vehicle recall sound includes pseudo engine sound, sine waveform sound, and the like.
  • the vehicle recalling sound generation device 700A includes a storage unit 710, a sound collection unit 720, and an analysis unit 730.
  • the vehicle-like sound generation device 700A includes a control unit 740 and a supply unit 750.
  • the storage unit 710 includes sound source information.
  • the storage unit 710 can be accessed by the control unit 740 and the supply unit 750.
  • the sound source information includes a waveform table and a plurality of waveform information.
  • the waveform table each of the plurality of waveform information and the frequency characteristics thereof are associated and registered.
  • Each of the plurality of waveform information includes a plurality of sound data.
  • the plurality of sound data is time-series data, and a sound waveform is formed by arranging the plurality of sound data in time sequence.
  • Each of the plurality of waveform information is not similar to each other.
  • the sound collection unit 720 collects sounds around the vehicle MV.
  • the sound collection result by the sound collection unit 720 is sent to the analysis unit 730.
  • the analysis unit 730 receives the sound collection result sent from the sound collection unit 720. Then, the analysis unit 730 analyzes the frequency characteristics of the sound collection result. The analysis result by the analysis unit 730 is sent to the control unit 740.
  • the control unit 740 controls generation of an output sound signal by the supply unit 750. During such control, the control unit 740 sends a waveform designation to the supply unit 750.
  • control unit 740 receives the analysis result sent from the analysis unit 730. Upon receiving the analysis result, the control unit 740 compares the frequency characteristic of the analysis result with the frequency characteristic of the waveform currently specified for the supply unit 750. Then, the control unit 740 maintains the waveform designation at the current time when both frequency characteristics are not similar to each other. On the other hand, when both frequency characteristics are similar to each other, the control unit 740 sends a new waveform specification specifying a waveform that is not similar to the frequency characteristic of the analysis result to the supply unit 750.
  • control unit 740 The details of the control process for generating the output sound signal by the control unit 740 will be described later.
  • the supply unit 750 reads the waveform information designated by the waveform designation sent from the control unit 740 from the storage unit 710 and generates an output sound signal.
  • the output sound signal generated in this way is sent to the sound output unit 790.
  • the generation process of the output sound signal by the supply unit 750 will be described later.
  • analysis unit 730 analyzes the frequency characteristics of ambient sound of vehicle MV based on the sound collection result. Do. Then, the analysis unit 730 sends the analysis result to the control unit 740.
  • the control unit 740 Upon receiving the analysis result sent from the analysis unit 730, the control unit 740 receives the frequency characteristic obtained as the analysis result and the frequency characteristic associated with the first waveform information in the waveform table stored in the storage unit 710. Compare Subsequently, the control unit 740 determines whether or not the frequency characteristic of the analysis result is similar to the frequency characteristic corresponding to the first waveform information based on the comparison result, so that the ambient sound of the vehicle MV and the vehicle It is determined whether or not the vehicle recall sound output from the MV is similar. When the result of the determination is negative, the above-described comparison of frequency characteristics and determination of similarity between frequency characteristics are repeated.
  • the control unit 740 selects second waveform information other than the first waveform information.
  • the control unit 740 randomly selects the second waveform information from the waveform information other than the first waveform information among the waveform information stored in the storage unit 710. This is to reduce the probability that a change to the vehicle-like sound having the same frequency characteristic occurs at the same timing when a vehicle having the same function exists in the vicinity other than the vehicle MV.
  • the control unit 740 sends a waveform designation specifying the second waveform information to the supply unit 750.
  • the supply unit 750 starts generating an output sound signal based on the second waveform information.
  • the supply unit 750 continues to generate an output sound signal based on the second waveform information until a new waveform designation is received.
  • the output sound signal is generated while the above-described comparison of the frequency characteristics, determination of similarity between the frequency characteristics, and change of the waveform information used when generating the output sound signal are repeated as necessary. Is called.
  • the output audio signal generated in this way is sent from the supply unit 750 to the sound output unit 790. Receiving this output sound signal, the sound output unit 790 outputs the vehicle-like sound according to the output sound signal toward the outside of the vehicle MV.
  • the control unit 740 has the frequency characteristics of the ambient sound of the vehicle MV obtained by the analysis by the analysis unit 730 and the frequency of the vehicle recall sound being output to the outside of the vehicle MV. Compare characteristics. Subsequently, the control unit 740 compares both frequency characteristics and determines whether or not both frequency characteristics are similar to each other.
  • control unit 740 maintains the current waveform designation. As a result, the output of the vehicle-like sound currently being output to the outside of the vehicle is continued.
  • a new waveform designation that designates a waveform that is not similar to the frequency characteristic of the analysis result is sent to the supply unit 750.
  • the generation of an output sound signal based on the waveform information corresponding to the new waveform designation is started in the supply unit 750, and the vehicle recall sound corresponding to the new waveform designation is output outside the vehicle.
  • the control unit 740 selects from among the waveform information other than the waveform information currently used in the waveform information stored in the storage unit 710, New waveform information is selected at random. For this reason, when there is a vehicle having a similar function in the vicinity in addition to the vehicle MV, it is possible to reduce the probability that the change to the vehicle recall sound having the same frequency characteristic occurs at the same timing.
  • FIG. 2 shows a schematic configuration of a vehicle-like sound generation device 700B according to the second embodiment.
  • the vehicle recalling sound generation device 700 ⁇ / b> B includes a server device 810 and a terminal device 910.
  • data communication using the communication network 500 is possible between the server device 810 and the terminal device 910.
  • the server device 810 is installed at a fixed position in a building, for example.
  • the server device 810 includes a storage unit 710, an analysis unit 730, a control unit 740, and a supply unit 750.
  • the terminal device 910 is mounted on the vehicle MV.
  • the terminal device 910 includes a sound collection unit 720.
  • a sound output unit 790 is mounted on the vehicle MV.
  • the vehicle-like sound generation device 700B when the sound collection unit 720 sends the sound collection result to the analysis unit 730 and the supply unit 750 outputs, compared to the vehicle-like sound generation device 700A of the first embodiment described above.
  • the sound signal to the sound output unit 790 data communication using the communication network 500 is performed, which is different from the vehicle recalling sound generator 700A.
  • the sound collection unit 720 in the terminal device 910 collects the ambient sound of the vehicle MV, and sends the sound collection result to the server device 810 via the communication network 500.
  • the analysis unit 730 receives the sound collection result transmitted from the sound collection unit 720. Then, as in the case of the first embodiment, the analysis unit 730 analyzes the frequency characteristics of the ambient sound of the vehicle MV based on the sound collection result, and sends the analysis result to the control unit 740.
  • the control unit 740 controls the generation of the output sound signal by the supply unit 750, as in the case of the first embodiment. Then, the supply unit 750 sends the generated output sound signal to the sound output unit 790 via the communication network 500. As a result, the sound output unit 790 outputs the vehicle recall sound to the outside of the vehicle as in the case of the first embodiment.
  • the control unit 740 uses the waveform information stored in the storage unit 710 at the present time. New waveform information is randomly selected from the waveform information other than the existing waveform information. For this reason, when there is a vehicle having a similar function in the vicinity in addition to the vehicle MV, it is possible to reduce the probability that the change to the vehicle recall sound having the same frequency characteristic occurs at the same timing.
  • the control unit 740 uses the waveform information stored in the storage unit 710 at the present time when selecting new waveform information in the vehicle-evoked sound generation devices 700A and 700B. New waveform information is selected at random from the waveform information other than the currently used waveform information. On the other hand, when selecting new waveform information, the control unit 740 generates a sound corresponding to the new frequency characteristic of the ambient sound of the vehicle MV obtained by the analysis unit 730 after the lapse of a randomly determined length of time. For example, the waveform information of a sound having distinctiveness may be selected from a plurality of waveform information stored in the storage unit 710.
  • the control unit 740 when selecting new waveform information, obtains the change mode of the frequency characteristics of the ambient sound of the vehicle MV based on the analysis result of the analysis unit 730, In consideration of the obtained change mode, new waveform information may be selected from a plurality of waveform information stored in the storage unit 710. For example, the control unit 740 predicts the frequency characteristic of the surrounding sound of the vehicle MV in the future in consideration of the obtained change mode, and the frequency of the sound having the distinctiveness with respect to the sound having the predicted frequency characteristic The waveform information corresponding to the characteristic may be selected from a plurality of waveform information stored in the storage unit 710.
  • the vehicle-like sound generator did not have a sound output part, when there is no existing sound-output part which can be utilized, a vehicle-like sound generator is used. It is good also as a structure provided with a sound output part.
  • the vehicle-like sound generation apparatus was provided with the memory
  • the vehicle recalling sound generator may be configured not to include a storage unit.
  • the vehicle-like sound generator was provided with the sound collection part, when the existing installation which can pick up the surrounding sound of a vehicle exists, the said existing The sound collection unit may be used, and the vehicle recalling sound generator may be configured not to include the sound collection unit.
  • the server device 810 includes the storage unit 710, the analysis unit 730, the control unit 740, and the supply unit 750.
  • any of these components may be arbitrarily set. It can be mounted on the vehicle side.
  • FIG. 3 shows a schematic configuration of a vehicle-like sound generation device 100A according to an embodiment.
  • the vehicle-like sound generation device 100A is an aspect of the vehicle-like sound generation device 700A (see FIG. 1) of the first embodiment described above.
  • Vehicle recalling device 100A is mounted on a vehicle CR that travels on a road using an electric motor as a drive mechanism.
  • the vehicle CR is equipped with a sound output unit 210 as a sound output unit 790 connected to the vehicle recalling sound generating device 100A and a vehicle speed sensor 220.
  • the sound output unit 210 includes a left speaker that outputs sound toward the left front and a right speaker that outputs sound toward the right front.
  • the sound output unit 210 receives an output sound signal AOS sent from the vehicle-like sound generator 100A.
  • the sound output part 210 outputs a vehicle recall sound from the left and right speakers to the outside of the vehicle CR according to the output sound signal AOS.
  • the vehicle speed sensor 220 detects the rotation of the wheel or axle of the vehicle CR.
  • the vehicle speed detection result SPS by the vehicle speed sensor 220 is sent to the vehicle-like sound generation device 100A.
  • the vehicle-like sound generation device 100 ⁇ / b> A includes a storage unit 110 as a storage unit 710 and a travel information acquisition unit 120.
  • the vehicle-like sound generation device 100 ⁇ / b> A includes a sound signal generation unit 130 as a part of the supply unit 750 and a volume adjustment unit 140 as a part of the supply unit 750.
  • the vehicle recalling sound generation device 100A includes a sound collection unit 150 as the sound collection unit 720, an analysis unit 160 as the analysis unit 730, and a control unit 170A as the control unit 740.
  • the storage unit 110 includes a memory element, and stores various information data used in the vehicle recalling sound generation device 100A. Such information data includes sound source information SSI.
  • the storage unit 110 can be accessed by the sound signal generation unit 130 and the control unit 170A. Details of the sound source information SSI will be described later.
  • the traveling information acquisition unit 120 receives the vehicle speed detection result SPS sent from the vehicle speed sensor 220. Then, the travel information acquisition unit 120 converts the vehicle speed detection result SPS into vehicle speed information SP in a form that can be handled by the control unit 170A. The vehicle speed information SP thus obtained is sent to the control unit 170A.
  • the sound signal generation unit 130 sequentially sets a plurality of sound data included in the waveform information in the sound source information SSI designated by the waveform designation SLC sent from the control unit 170A as described later as sound data SDD. After reading, the read sound data is sequentially output at a predetermined period ⁇ . As a result, a sound signal WFD having a waveform corresponding to the selected waveform information is generated and sent to the volume adjusting unit 140.
  • the volume adjusting unit 140 receives the sound signal WFD sent from the sound signal generating unit 130. Then, the volume adjustment unit 140 performs volume adjustment processing on the sound signal WFD in accordance with the volume designation value VLC sent from the control unit 170A, and generates an output sound signal AOS. The output sound signal AOS thus generated is sent to the sound output unit 210.
  • the above-described sound collection unit 150 includes a sound collection device such as a microphone.
  • the sound collection unit 150 collects sounds around the vehicle CR.
  • the sound collection result AAD by the sound collection unit 150 is sent to the analysis unit 160.
  • the analysis unit 160 receives the sound collection result AAD sent from the sound collection unit 150. And the analysis part 160 analyzes the frequency characteristic of the said sound collection result AAD. The analysis result ANR by the analysis unit 160 is sent to the control unit 170A.
  • the above-described control unit 170A includes a central processing unit (CPU).
  • the control unit 170A performs output sound control in the vehicle-like sound generation device 100A by executing a predetermined program. The output sound control process by the control unit 170A will be described later.
  • the sound source information SSI stored in the storage unit 110 described above will be described.
  • the sound source information SSI includes a waveform table WFT and waveform information WFI 1 ,..., WFI M.
  • a sound signal having a waveform WFD j (t) shown in FIG. 7 is generated by sequentially outputting these sound data # j1 to #jN and outputting them in the order of reading at a predetermined period ⁇ . It has become.
  • the sound collecting operation by the sound collecting unit 150 is started, and the sound collection result AAD is sent to the analyzing unit 160.
  • the analysis unit 160 analyzes the frequency characteristic of the sound collection result AAD, and the analysis result ANR is sent to the control unit 170A (see FIG. 3).
  • the acquisition operation by the travel information acquisition unit 120 is started.
  • the travel information acquisition unit 120 converts the vehicle speed detection result SPS sent from the vehicle speed sensor 220 into vehicle speed information SP in a form that can be handled by the control unit 170A, and sends it to the control unit 170A. (See FIG. 3).
  • Such output sound control processing includes volume adjustment processing and sound signal generation control processing executed in parallel.
  • the control unit 170A In the volume control process, the control unit 170A generates a volume designation value VLC based on the vehicle speed information SP sent from the travel information acquisition unit 120, and sends the generated volume designation value VLC to the volume adjustment unit 140. (See FIG. 3).
  • step S11 the control unit 170A selects predetermined initial waveform information (for example, waveform information WFI 1 ). Then, the control unit 170A sends the waveform designation SLC designating the initial waveform information to the sound signal generation unit 130 (see FIG. 3).
  • predetermined initial waveform information for example, waveform information WFI 1 .
  • the control unit 170A sends the waveform designation SLC designating the initial waveform information to the sound signal generation unit 130 (see FIG. 3).
  • step S12 the control unit 170A determines whether or not the analysis result ANR is newly received from the analysis unit 160. If the result of this determination is negative (step S12: N), the process of step S12 is repeated.
  • step S12 If the analysis result ANR is newly received from the analysis unit 160 and the determination result in step S12 is affirmative (step S12: Y), the process proceeds to step S13.
  • step S13 the control unit 170A determines whether or not the vehicle recall sound being output from the sound output unit 210 is discriminating with respect to the ambient sound of the vehicle CR.
  • the control unit 170A When determining the discriminability, the control unit 170A reads the frequency characteristic corresponding to the currently selected waveform information from the waveform table WFT in the storage unit 110. Then, the control unit 170A determines whether or not the read frequency characteristic and the frequency characteristic newly received as the analysis result ANR are dissimilar, so that the vehicle recalling sound being output is the ambient sound of the vehicle CR. It is determined whether or not it has discriminability.
  • step S13: Y If the result of the determination in step S13 is affirmative (step S13: Y), the process returns to step S12. On the other hand, when the result of the determination in step S13 is negative (step S13: N), the process proceeds to step S14.
  • control unit 170A randomly selects one waveform information from waveform information other than the currently selected waveform information among waveform information WFI 1 to WFI M stored in storage unit 110. Subsequently, in step S ⁇ b> 15, the control unit 170 ⁇ / b> A sends a waveform designation SLC designating the newly selected waveform information to the sound signal generation unit 130. As a result, the sound signal generator 130 starts generating the sound signal WFD based on the newly selected waveform information (see FIG. 3).
  • step S15 When the process in step S15 described above is completed, the process returns to step S12. Thereafter, the processes of steps S12 to S15 are repeated.
  • the sound signal generation unit 130 outputs sound data constituting the waveform information designated by the waveform designation SLC sent from the control unit 170A. Read sequentially. Then, the sound signal generation unit 130 sequentially outputs the read sound data with a predetermined period ⁇ . As a result, a sound signal WFD having a waveform corresponding to the designated waveform information is generated. The sound signal WFD generated in this way is sent to the volume adjustment unit 140 (see FIG. 3).
  • volume adjustment unit 140 specified with the volume specification value VLC performs volume adjustment on the sound signal WFD sent from the sound signal generation unit 130 according to the volume specification value VLC, and generates an output sound signal AOS.
  • the output sound signal AOS thus generated is sent to the sound output unit 210.
  • the sound output unit 210 that has received the output sound signal AOS sent from the volume adjustment unit 140 outputs a sound according to the output sound signal AOS to the outside of the vehicle.
  • the vehicle recall sound is output outside the vehicle.
  • control unit 170A has the frequency characteristic of the ambient sound of the vehicle CR obtained by the analysis by the analysis unit 160 and the frequency characteristic of the vehicle-recollected sound being output to the outside of the vehicle CR. Compare Subsequently, the control unit 170A compares both frequency characteristics and determines whether or not both frequency characteristics are similar to each other.
  • control unit 170A maintains the current waveform designation. As a result, the output of the vehicle-like sound currently being output to the outside of the vehicle is continued.
  • a new waveform designating SLC designating a waveform that is not similar to the frequency characteristic of the analysis result is sent to the sound signal generating unit 130.
  • the generation of the sound signal WFD based on the waveform information designated by the new waveform designation SLC is started in the sound signal generation 130 and is output to the outside of the vehicle recall sound corresponding to the new waveform designation SLC.
  • the control unit 170A selects from the waveform information other than the currently selected waveform information among the waveform information WFI 1 to WFI M stored in the storage unit 110.
  • One waveform information is selected at random. For this reason, when there is a vehicle equipped with a device having the same vehicle-like sound generation function in addition to the vehicle CR, it is possible to reduce the probability that a change to the vehicle-like sound having the same frequency characteristic occurs. .
  • the vehicle-like sound generation device 100A are mounted on the vehicle CR.
  • the terminal device mounted on the vehicle CR The communicable server device may include a part of the components of the vehicle recalling sound generating device 100A.
  • the vehicle-recollection sound generation device 100A is not provided with the sound output unit 210. However, if there is no existing sound output unit 210 that can be used, the vehicle-recovery sound generation device 100A generates a sound. It is good also as a structure provided with an output part.
  • the storage unit 110 included in the vehicle-like sound generation device 100A stores the sound source information SSI.
  • the existing unit may be used, and the storage unit 110 may not store the sound source information SSI.
  • the vehicle-like sound generation device 100A includes the sound collection unit 150.
  • the existing facility is used. It is good also as a structure which does not include the sound collection part 150 so that it may utilize.
  • one waveform information is selected from the waveform information other than the currently selected waveform information among the waveform information WFI 1 to WFI M stored in the storage unit 110. Was selected at random.
  • new waveform information may be selected as in Modification 1 or Modification 2 below.
  • the sound signal generation unit 130 sequentially reads the sound data constituting the waveform information specified by the control unit 170A and sequentially outputs the sound data at a predetermined cycle ⁇ .
  • a sound having different frequency characteristics may be output according to the vehicle speed.
  • the read frequency characteristic and the current vehicle speed are used. Based on this, the frequency characteristic of the vehicle-like sound being output to the outside of the vehicle is calculated. Then, it may be determined whether the calculated frequency characteristic and the frequency characteristic newly received as the analysis result ANR are dissimilar.
  • the vehicle-evoked sound generating device according to the first modification includes a control unit that performs a sound signal generation control process different from the control unit 170A instead of the control unit 170A. Only the point provided is different in configuration. Hereinafter, the description will be given focusing on the difference.
  • vehicle-evoked sound generating device 100B the vehicle-evoked sound generating device according to Modification 1
  • control portion 170B the control unit provided in vehicle-evoked sound generating device 100B
  • step S21 the control unit 170B selects predetermined initial waveform information (for example, waveform information WFI 1 ), and sends a waveform designation SLC designating the initial waveform information to the sound signal generation unit 130.
  • step S22 the control unit 170B determines whether or not the analysis result ANR is newly received from the analysis unit 160. If the result of this determination is negative (step S22: N), the process of step S22 is repeated.
  • step S23 the controller 170B recognizes that the vehicle-evoked sound being output from the sound output unit 210 is distinct from the ambient sound of the vehicle CR. It is determined whether or not it has. If the result of this determination is affirmative (step S23: Y), the process returns to step S22.
  • step S23 If the result of the determination in step S23 is negative (step S23: N), the process proceeds to step S24.
  • step S24 the controller 170B randomly determines the waiting time.
  • step S25 the control unit 170B determines whether or not the determined waiting time has elapsed. If the result of this determination is negative (step S25: N), the process of step S25 is repeated.
  • step S25: Y When the determined waiting time has elapsed and the result of the determination in step S25 is affirmative (step S25: Y), the process proceeds to step S26.
  • step S26 it is determined whether or not a new analysis result ANR has been received from the analysis unit 160 after the determined waiting time has elapsed. If the result of this determination is negative (step S26: N), the process of step S26 is repeated.
  • step S26 the control unit 170B refers to the waveform table WFT in the storage unit 110, and newly acquires waveform information having a frequency characteristic that is not similar to the frequency characteristic received as the analysis result ANR during the process of step S26. Select as correct waveform information.
  • the new waveform information is selected, for example, if the frequency characteristics of the ambient sound are the same as those at the time of execution of the processing in step S23 described above, the frequency characteristics associated with the currently selected waveform information are not. Waveform information corresponding to similar frequency characteristics is selected. Further, for example, when the frequency characteristics of the ambient sound are dissimilar to those at the time when the process of step S23 described above is performed, the selected waveform information is selected as new waveform information. .
  • step S28 the control unit 170B sends a waveform designation SLC designating the newly selected waveform information to the sound signal generation unit 130.
  • the sound signal generation unit 130 starts generating the sound signal WFD based on the newly selected waveform information.
  • step S28 When the process in step S28 described above is completed, the process returns to step S22. Thereafter, the processes of steps S22 to S28 are repeated.
  • a vehicle recall sound suitable for alerting a pedestrian or the like can be output outside the vehicle, as in the case of the above-described embodiment.
  • the first modification when it is determined that the vehicle recalling sound being output is not discriminating with respect to the surrounding sound, a new frequency of the surrounding sound after a lapse of a waiting time of a randomly determined length
  • One waveform information of sound having distinctiveness with respect to a sound having characteristics is selected from a plurality of waveform information stored in the storage unit 110.
  • the first modification when a vehicle equipped with a device having the same vehicle-like sound generation function other than the vehicle CR is present in the vicinity, the change to the vehicle-like sound having the same frequency characteristic occurs. The probability can be reduced. Note that when the method of the first modification is employed, the number of waveform information stored in the storage unit 110 for reducing the probability can be reduced as compared with the case of the above-described embodiment. .
  • the vehicle-evoked sound generating device includes a control unit that performs a sound signal generation control process different from the control unit 170A, instead of the control unit 170A, as compared to the vehicle-evoked sound generating device 100A of the above-described embodiment. Only the point provided is different in configuration. Hereinafter, the description will be given focusing on the difference.
  • vehicle-evoked sound generating device 100C vehicle-evoked sound generating device 100C
  • control unit 170C control unit 170C
  • step S31 the control unit 170C selects predetermined initial waveform information (for example, waveform information WFI 1 ), and sends a waveform designation SLC designating the initial waveform information to the sound signal generation unit 130.
  • step S32 the control unit 170C determines whether or not the analysis result ANR is newly received from the analysis unit 160. If the result of this determination is negative (step S32: N), the process of step S32 is repeated.
  • step S32 determines whether or not the number of recent analysis results necessary for prediction of the frequency characteristics of ambient sounds in the future (for example, five) has been received. If the result of this determination is negative (step S33: N), the process returns to step S32.
  • step S33 the result of the determination in step S33 is negative until the required number of analysis results are received after the operation of the vehicle recalling sound generating device 100C is started. Thereafter, the result of the determination in step S33 becomes affirmative.
  • step S33 If the result of the determination in step S33 is affirmative (step S33: Y), the process proceeds to step S34.
  • step S34 the control unit 170C predicts the frequency characteristics of future ambient sounds based on the necessary number of recent analysis results.
  • step S35 the control unit 170C determines whether or not the vehicle recall sound being output from the sound output unit 210 is discriminating with respect to the predicted future ambient sound.
  • the control unit 170C reads the frequency characteristic corresponding to the currently selected waveform information from the waveform table WFT in the storage unit 110. Then, the control unit 170C determines whether the read frequency characteristic and the predicted frequency characteristic of the future ambient sound are dissimilar, so that the vehicle recalling sound being output is predicted in the future. It is determined whether or not there is discriminability with respect to ambient sounds.
  • step S35: Y If the result of the determination in step S35 is affirmative (step S35: Y), the process returns to step S32. On the other hand, when the result of the determination in step S35 is negative (step S35: N), the process proceeds to step S36.
  • step S36 the control unit 170C refers to the waveform table WFT in the storage unit 110, and selects waveform information having frequency characteristics that are not similar to the predicted frequency characteristics of ambient sounds as new waveform information.
  • step S37 the control unit 170C sends a waveform designation SLC designating the newly selected waveform information to the sound signal generation unit 130.
  • the sound signal generation unit 130 starts generating the sound signal WFD based on the newly selected waveform information.
  • step S37 When the process in step S37 described above is completed, the process returns to step S32. Thereafter, the processes of steps S32 to S37 are repeated.
  • a vehicle recall sound suitable for alerting a pedestrian or the like can be output outside the vehicle, as in the case of the above-described embodiment.
  • control units 170A, 170B, and 170C perform control processing for generating output sound by executing a program.
  • all or part of the control unit 170A is used. This may be performed by hardware using a dedicated LSI (Large Scale Integrated Circuit) or the like.
  • the programs executed by the control units 170A, 170B, and 170C may be acquired in a form recorded on a portable recording medium such as a CD-ROM or DVD, or distributed via a network such as the Internet. You may make it acquire in the form of.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

Une unité de commande (740) compare la caractéristique de fréquence de son autour d'un véhicule (MV) obtenue par une analyse effectuée par une unité d'analyse (730) et la caractéristique de fréquence de son d'avertissement de véhicule qui sort à l'extérieur du véhicule (MV). Par la suite, l'unité de commande (740) compare les deux caractéristiques de fréquence et détermine si les deux caractéristiques de fréquence sont mutuellement similaires ou non. Lorsque le résultat de la détermination est négatif, l'unité de commande (740) maintient une désignation de forme d'onde au moment présent. En conséquence, la sortie du son d'avertissement de véhicule qui sort au moment présent à l'extérieur du véhicule se poursuit. Par contre, lorsque le résultat de la détermination est positif, une nouvelle désignation de forme d'onde non similaire à celle de la caractéristique de fréquence obtenue suite à l'analyse est envoyée à une unité d'alimentation (750). En conséquence, la production d'un signal sonore de sortie sur la base d'informations de forme d'onde correspondant à la nouvelle désignation de forme d'onde démarre dans l'unité d'alimentation (750), et un son d'avertissement de véhicule correspondant à la nouvelle désignation de forme d'onde sort à l'extérieur du véhicule. En conséquence, le son d'avertissement de véhicule approprié pour attirer l'attention des piétons sort à l'extérieur du véhicule.
PCT/JP2010/070654 2010-11-19 2010-11-19 Procédé et dispositif de production de son d'avertissement de véhicule Ceased WO2012066672A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011544528A JP4892119B1 (ja) 2010-11-19 2010-11-19 車両想起音発生装置及び車両想起音発生方法
PCT/JP2010/070654 WO2012066672A1 (fr) 2010-11-19 2010-11-19 Procédé et dispositif de production de son d'avertissement de véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/070654 WO2012066672A1 (fr) 2010-11-19 2010-11-19 Procédé et dispositif de production de son d'avertissement de véhicule

Publications (1)

Publication Number Publication Date
WO2012066672A1 true WO2012066672A1 (fr) 2012-05-24

Family

ID=45907916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/070654 Ceased WO2012066672A1 (fr) 2010-11-19 2010-11-19 Procédé et dispositif de production de son d'avertissement de véhicule

Country Status (2)

Country Link
JP (1) JP4892119B1 (fr)
WO (1) WO2012066672A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014038010A1 (fr) * 2012-09-05 2014-03-13 三菱電機株式会社 Dispositif de génération de son de notification d'approche de véhicule
JP2015119246A (ja) * 2013-12-17 2015-06-25 カシオ計算機株式会社 電子機器及びプログラム
WO2018197600A1 (fr) * 2017-04-28 2018-11-01 Robert Bosch Gmbh Procédé et dispositif pour générer des bruits de synthèse
EP3579226A1 (fr) * 2018-06-05 2019-12-11 Grewus GmbH Dispositif d'avertissement de recul

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009040317A (ja) * 2007-08-10 2009-02-26 Toyota Motor Corp 車両接近告知装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009040317A (ja) * 2007-08-10 2009-02-26 Toyota Motor Corp 車両接近告知装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014038010A1 (fr) * 2012-09-05 2014-03-13 三菱電機株式会社 Dispositif de génération de son de notification d'approche de véhicule
JP5634649B2 (ja) * 2012-09-05 2014-12-03 三菱電機株式会社 車両接近報知音発生装置
CN104602963A (zh) * 2012-09-05 2015-05-06 三菱电机株式会社 车辆接近通知音产生装置
US9409516B2 (en) 2012-09-05 2016-08-09 Mitsubishi Electric Corporation Vehicle approach notification sound generating apparatus
CN104602963B (zh) * 2012-09-05 2016-09-28 三菱电机株式会社 车辆接近通知音产生装置
JP2015119246A (ja) * 2013-12-17 2015-06-25 カシオ計算機株式会社 電子機器及びプログラム
WO2018197600A1 (fr) * 2017-04-28 2018-11-01 Robert Bosch Gmbh Procédé et dispositif pour générer des bruits de synthèse
EP3579226A1 (fr) * 2018-06-05 2019-12-11 Grewus GmbH Dispositif d'avertissement de recul

Also Published As

Publication number Publication date
JPWO2012066672A1 (ja) 2014-05-12
JP4892119B1 (ja) 2012-03-07

Similar Documents

Publication Publication Date Title
CN105015412B (zh) 车辆提醒声产生装置及方法、终端装置、服务器装置
US20120001771A1 (en) Computer based system and method for providing a driver assist information
CN103152667B (zh) 使用触摸模式进行喇叭控制的装置和方法
WO2011070630A1 (fr) Dispositif d'émission sonore pour véhicule électrique
JP5585194B2 (ja) 事故状況記録システム
JP4892119B1 (ja) 車両想起音発生装置及び車両想起音発生方法
JP2016224477A (ja) 車載装置、運転モード制御システム、及び運転モード制御方法
JP2011162055A (ja) 擬似走行音発生装置および擬似走行音発生システム
JP2022084726A (ja) 運転支援装置、方法及びプログラム
JPWO2012004842A1 (ja) 運転操作支援装置及び運転操作支援方法
JP6949278B2 (ja) 運転支援装置、運転支援システムおよび運転支援方法
JP4944284B1 (ja) 音響装置及び出力音制御方法
WO2012066685A1 (fr) Dispositif sonore et dispositif de commande de son émis
JP5852288B2 (ja) 外部音出力制御装置及び外部音出力制御方法
WO2013145082A1 (fr) Dispositif d'alerte, procédé d'alerte, programme d'alerte et support d'enregistrement enregistrant ledit programme d'alerte
JP2023151964A (ja) 車両接近通報装置
JPWO2014064800A1 (ja) 車両接近報知音発生装置
CN114242028A (zh) 一种车辆的控制方法及装置、车辆和存储介质
JPWO2012066670A1 (ja) 音響装置及び出力音制御方法
JP2021157595A (ja) 走行支援システム、走行支援方法およびプログラム
JP5781233B2 (ja) 車両接近報知音発生装置
CN118494338B (zh) 车辆跨域共用车外扬声器的方法、车辆、设备及介质
JP5731074B2 (ja) 音出力部制御装置及び音出力部制御方法
JP2023170829A (ja) 車両接近音制御方法、車両接近音制御装置、及びサーバー
WO2012086063A1 (fr) Dispositif acoustique et procédé de commande de sortie sonore

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2011544528

Country of ref document: JP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10859862

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10859862

Country of ref document: EP

Kind code of ref document: A1