WO2023163196A1

WO2023163196A1 - Content output device, content output method, program, and recording medium

Info

Publication number: WO2023163196A1
Application number: PCT/JP2023/007198
Authority: WO
Inventors: 高志飯澤; 敬太倉持; 敦博山中
Original assignee: パイオニア株式会社
Priority date: 2022-02-28
Filing date: 2023-02-28
Publication date: 2023-08-31

Abstract

A content output device has a detection unit, a content acquisition unit, and an output unit. The detection unit detects the occurrence of a predetermined situation in a vehicle. The content acquisition unit acquires a content group including a plurality of pieces of content for audio guidance in order to notify occupants in the vehicle of the occurrence of a predetermined situation. The output unit outputs, among the content included in the content group, content corresponding to the number of occurrences of the predetermined situation in a vehicle.

Description

CONTENT OUTPUT DEVICE, CONTENT OUTPUT METHOD, PROGRAM AND STORAGE MEDIUM

The present invention relates to technology that can be used in outputting content for voice guidance.

Conventionally known is a technology for outputting content for voice guidance to notify passengers of a vehicle of the occurrence of a predetermined situation.

Specifically, for example, Patent Literature 1 discloses a technique for outputting a warning sound contained in a dangerous spot table when approaching a dangerous spot.

JP 2013-101083 A

However, Patent Document 1 does not particularly disclose the point of view of outputting content for voice guidance to the user while considering the number of occurrences of a given situation in the user. Therefore, according to the technology disclosed in Patent Literature 1, there is a problem that there is a possibility of imposing an unnecessary mental burden on the user who uses the vehicle voice guidance.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a main object of the present invention is to provide a content output device capable of reducing the mental burden of a user who uses voice guidance for vehicles. do.

The claimed invention is a content output device, comprising: a detection unit for detecting occurrence of a predetermined situation in a vehicle; and an output unit for outputting content according to the number of occurrences of the predetermined situation in the vehicle among the contents included in the content group. .

Further, the invention described in the claims is a content output method, which detects the occurrence of a predetermined situation in a vehicle, and provides voice guidance for notifying passengers of the vehicle of the occurrence of the predetermined situation. A content group including a plurality of contents is acquired, and content corresponding to the number of occurrences of the predetermined situation in the vehicle is output among the contents included in the content group.

Further, the invention according to the claims is a program executed by a content output device provided with a computer, comprising: a detection unit for detecting occurrence of a predetermined situation in a vehicle; a content acquisition unit that acquires a content group including a plurality of contents for voice guidance for informing passengers; The computer is caused to function as an output unit that outputs content.

1 is a diagram showing a configuration example of an audio output system according to an embodiment; FIG. 1 is a block diagram showing a schematic configuration of an audio output device; FIG. The figure which shows an example of schematic structure of a server apparatus. 4 is a flowchart for explaining processing performed in the server device;

In one preferred embodiment of the present invention, the content output device includes a detection unit for detecting occurrence of a predetermined situation in a vehicle, and voice guidance for informing passengers of the vehicle of the occurrence of the predetermined situation. a content acquisition unit that acquires a content group including a plurality of content for the vehicle, and an output unit that outputs content corresponding to the number of occurrences of the predetermined situation in the vehicle, among the contents included in the content group. have.

The above content output device has a detection unit, a content acquisition unit, and an output unit. The detection unit detects that a predetermined situation has occurred in the vehicle. The content acquisition unit acquires a content group including a plurality of content for voice guidance for informing passengers of the vehicle of occurrence of the predetermined situation. The output unit outputs content corresponding to the number of occurrences of the predetermined situation in the vehicle, among the contents included in the content group. As a result, the mental burden on the user who uses the voice guidance for vehicles can be reduced.

In one aspect of the above content output device, the output unit outputs the first content included in the content group when the number of occurrences of the predetermined situation is equal to or less than a predetermined threshold, and outputs the first content contained in the content group. exceeds the predetermined threshold, second content that is included in the content group and that is a simplified version of the first content is output.

In one aspect of the content output device, the output unit outputs the first content included in the content group with a first probability when the number of occurrences of the predetermined situation exceeds a predetermined threshold. and outputting a second content, which is included in the content group and which is a simplified version of the first content, with a second probability higher than the first probability.

In one aspect of the content output device described above, the predetermined situation is a situation in which rerouting is required.

In one aspect of the content output device described above, the predetermined situation is a situation in which a traffic jam may occur.

In another embodiment of the present invention, a content output method detects occurrence of a predetermined situation in a vehicle, and includes a plurality of contents for voice guidance for informing passengers of the vehicle of the occurrence of the predetermined situation. is obtained, and out of the contents included in the content group, content corresponding to the number of occurrences of the predetermined situation in the vehicle is output. As a result, the mental burden on the user who uses the voice guidance for vehicles can be reduced.

In still another embodiment of the present invention, a program executed by a content output device provided with a computer includes a detection unit that detects occurrence of a predetermined situation in a vehicle, a passenger of the vehicle that detects the occurrence of the predetermined situation. a content acquisition unit that acquires a content group including a plurality of content for voice guidance for notifying the user of the vehicle, and content corresponding to the number of occurrences of the predetermined situation in the vehicle from among the content included in the content group. The computer is made to function as an output unit for output. By executing this program on a computer, the above content output device can be realized. This program can be stored in a storage medium and used.

Preferred embodiments of the present invention will be described below with reference to the drawings.

[System configuration]
(overall structure)
FIG. 1 is a diagram illustrating a configuration example of an audio output system according to an embodiment. A voice output system 1 according to this embodiment includes a voice output device 100 and a server device 200 . The audio output device 100 is mounted on the vehicle Ve. The server device 200 communicates with a plurality of audio output devices 100 mounted on a plurality of vehicles Ve.

The voice output device 100 basically performs route search processing, route guidance processing, etc. for the user who is a passenger of the vehicle Ve. For example, when a destination or the like is input by the user, the voice output device 100 transmits an upload signal S1 including position information of the vehicle Ve and information on the designated destination to the server device 200 . Server device 200 calculates the route to the destination by referring to the map data, and transmits control signal S2 indicating the route to the destination to audio output device 100 . The voice output device 100 provides route guidance to the user by voice output based on the received control signal S2.

In addition, the voice output device 100 provides various types of information to the user through interaction with the user. For example, when a user makes an information request, the audio output device 100 supplies the server device 200 with an upload signal S1 including information indicating the content or type of the information request and information about the running state of the vehicle Ve. The server device 200 acquires and generates information requested by the user, and transmits it to the audio output device 100 as a control signal S2. The audio output device 100 provides the received information to the user by audio output.

(Audio output device)
The voice output device 100 moves together with the vehicle Ve and performs route guidance mainly by voice so that the vehicle Ve travels along the guidance route. It should be noted that "route guidance based mainly on voice" refers to route guidance in which the user can grasp information necessary for driving the vehicle Ve along the guidance route at least from only voice, and the voice output device 100 indicates the current position. It does not exclude the auxiliary display of a surrounding map or the like. In this embodiment, the voice output device 100 outputs at least various information related to driving, such as points on the route that require guidance (also referred to as “guidance points”), by voice. Here, the guidance point corresponds to, for example, an intersection at which the vehicle Ve turns left or right, or an important passing point for the vehicle Ve to travel along the guidance route. The voice output device 100 provides voice guidance regarding guidance points such as the distance from the vehicle Ve to the next guidance point and the traveling direction at the guidance point. Hereinafter, the voice regarding the guidance for the guidance route is also referred to as "route voice guidance".

The audio output device 100 is installed, for example, on the upper part of the windshield of the vehicle Ve or on the dashboard. Note that the audio output device 100 may be incorporated in the vehicle Ve.

FIG. 2 is a block diagram showing a schematic configuration of the audio output device 100. As shown in FIG. Audio output device 100 mainly includes communication unit 111 , storage unit 112 , input unit 113 , control unit 114 , sensor group 115 , display unit 116 , microphone 117 , speaker 118 , and vehicle exterior camera 119 . and an in-vehicle camera 120 . Each element in the audio output device 100 is interconnected via a bus line 110 .

The communication unit 111 performs data communication with the server device 200 under the control of the control unit 114 . The communication unit 111 may receive, for example, map data for updating a map DB (DataBase) 4 to be described later from the server device 200 .

The storage unit 112 is composed of various memories such as RAM (Random Access Memory), ROM (Read Only Memory), non-volatile memory (including hard disk drive, flash memory, etc.). The storage unit 112 stores a program for the audio output device 100 to execute predetermined processing. The above programs may include an application program for providing route guidance by voice, an application program for playing back music, an application program for outputting content other than music (such as television), and the like. Storage unit 112 is also used as a working memory for control unit 114 . Note that the program executed by the audio output device 100 may be stored in a storage medium other than the storage unit 12 .

The storage unit 112 also stores a map database (hereinafter, the database is referred to as "DB") 4. Various data required for route guidance are recorded in the map DB 4 . The map DB 4 stores, for example, road data representing a road network by a combination of nodes and links, and facility data indicating facilities that are candidates for destinations, stop-off points, or landmarks. The map DB 4 may be updated based on the map information received by the communication section 111 from the map management server under the control of the control section 114 .

The input unit 113 is a button, touch panel, remote controller, etc. for user operation. The display unit 116 is a display or the like that displays based on the control of the control unit 114 . The microphone 117 collects sounds inside the vehicle Ve, particularly the driver's utterances. A speaker 118 outputs voice for route guidance to the driver or the like.

The sensor group 115 includes an external sensor 121 and an internal sensor 122 . The external sensor 121 is, for example, one or more sensors for recognizing the surrounding environment of the vehicle Ve, such as a lidar, radar, ultrasonic sensor, infrared sensor, and sonar. The internal sensor 122 is a sensor that performs positioning of the vehicle Ve, and is, for example, a GNSS (Global Navigation Satellite System) receiver, a gyro sensor, an IMU (Inertial Measurement Unit), a vehicle speed sensor, or a combination thereof. It should be noted that the sensor group 115 may have a sensor that allows the control unit 114 to directly or indirectly derive the position of the vehicle Ve from the output of the sensor group 115 (that is, by performing estimation processing).

The vehicle exterior camera 119 is a camera that captures the exterior of the vehicle Ve. The exterior camera 119 may be only a front camera that captures the front of the vehicle, or may include a rear camera that captures the rear of the vehicle in addition to the front camera. good too. On the other hand, the in-vehicle camera 120 is a camera for photographing the interior of the vehicle Ve, and is provided at a position capable of photographing at least the vicinity of the driver's seat.

The control unit 114 includes a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), etc., and controls the audio output device 100 as a whole. For example, the control unit 114 estimates the position (including the traveling direction) of the vehicle Ve based on the outputs of one or more sensors in the sensor group 115 . Further, when a destination is specified by the input unit 113 or the microphone 117, the control unit 114 generates route information indicating a guidance route to the destination, Based on the positional information and the map DB 4, route guidance is provided. In this case, the control unit 114 causes the speaker 118 to output route voice guidance. Further, the control unit 114 controls the display unit 116 to display information about the music being played, video content, a map of the vicinity of the current position, or the like.

It should be noted that the processing executed by the control unit 114 is not limited to being implemented by program-based software, and may be implemented by any combination of hardware, firmware, and software. Also, the processing executed by the control unit 114 may be implemented using a user-programmable integrated circuit such as an FPGA (field-programmable gate array) or a microcomputer. In this case, this integrated circuit may be used to implement the program executed by the control unit 114 in this embodiment. Thus, the control unit 114 may be realized by hardware other than the processor.

The configuration of the audio output device 100 shown in FIG. 2 is an example, and various changes may be made to the configuration shown in FIG. For example, instead of storing the map DB 4 in the storage unit 112 , the control unit 114 may receive information necessary for route guidance from the server device 200 via the communication unit 111 . In another example, instead of having the speaker 118, the audio output device 100 is electrically connected to an audio output unit configured separately from the audio output device 100, or by a known communication means, so as to output the audio. Audio may be output from the output unit. In this case, the audio output unit may be a speaker provided in the vehicle Ve. In still another example, the audio output device 100 does not have to include the display section 116 . In this case, the audio output device 100 does not need to perform display-related control at all. may be executed. Similarly, instead of including the sensor group 115, the audio output device 100 may acquire information output by sensors installed in the vehicle Ve based on a communication protocol such as CAN (Controller Area Network) from the vehicle Ve. .

(Server device)
The server device 200 generates route information indicating a guidance route that the vehicle Ve should travel based on the upload signal S1 including the destination and the like received from the voice output device 100 . The server device 200 then generates a control signal S2 relating to information output in response to the user's information request based on the user's information request indicated by the upload signal S1 transmitted by the audio output device 100 and the running state of the vehicle Ve. The server device 200 then transmits the generated control signal S<b>2 to the audio output device 100 .

Furthermore, the server device 200 generates content for providing information to the user of the vehicle Ve and interacting with the user, and transmits the content to the audio output device 100 . The provision of information to the user is primarily a push-type information provision that is triggered by the server device 200 when the vehicle Ve reaches a predetermined driving condition. Also, the dialog with the user is basically a pull-type dialog that starts with a question or inquiry from the user. However, the dialogue with the user may start from the provision of push-type content.

FIG. 3 is a diagram showing an example of a schematic configuration of the server device 200. As shown in FIG. The server device 200 mainly has a communication section 211 , a storage section 212 and a control section 214 . Each element in the server device 200 is interconnected via a bus line 210 .

The communication unit 211 performs data communication with an external device such as the audio output device 100 under the control of the control unit 214 . The storage unit 212 is composed of various types of memory such as RAM, ROM, nonvolatile memory (including hard disk drive, flash memory, etc.). Storage unit 212 stores a program for server device 200 to execute a predetermined process. Moreover, the memory|storage part 212 contains map DB4.

The control unit 214 includes a CPU, GPU, etc., and controls the server device 200 as a whole. Further, the control unit 214 operates together with the audio output device 100 by executing a program stored in the storage unit 212, and executes route guidance processing, information provision processing, and the like for the user. For example, based on the upload signal S1 received from the audio output device 100 via the communication unit 211, the control unit 214 generates route information indicating a guidance route or a control signal S2 relating to information output in response to a user's information request. Then, the control unit 214 transmits the generated control signal S2 to the audio output device 100 through the communication unit 211 .

[Push-type content provision]
Next, push-type content provision will be described. The provision of push-type content means that when the vehicle Ve is in a predetermined driving situation, the audio output device 100 outputs the content related to the driving situation to the user. Specifically, the voice output device 100 acquires the driving situation information indicating the driving situation of the vehicle Ve based on the output of the sensor group 115 as described above, and transmits it to the server device 200 . The server device 200 stores table data for providing push-type content in the storage unit 212 . The server device 200 refers to the table data, and when the driving situation information received from the voice output device 100 mounted on the vehicle Ve matches the trigger condition defined in the table data, the script corresponding to the trigger condition is used to generate output content and transmit it to the audio output device 100 . The audio output device 100 audio-outputs the content for output received from the server device 200 . In this way, the content corresponding to the driving situation of the vehicle Ve is output to the user by voice.

The driving situation information includes, for example, the position of the vehicle Ve, the direction of the vehicle, traffic information around the position of the vehicle Ve (including speed regulation and congestion information, etc.), the current time, the destination, etc. At least one piece of information that can be acquired based on the function of each unit of the output device 100 may be included. Further, the driving situation information may include any one of the voice obtained by the microphone 117, the image captured by the exterior camera 119, and the image captured by the interior camera 120. The driving status information may also include information received from the server device 200 through the communication unit 111 .

[Processing related to content output]
Next, the processing related to content output will be described.

(Specific example 1)
When route guidance is started in the vehicle Ve, the server device 200 uses the map DB 4 stored in the storage unit 212 and the driving situation information of the vehicle Ve received in the communication unit 211 to determine the route guidance for the vehicle Ve. from the current location to the destination (hereinafter also referred to as route MR).

The server device 200 determines whether or not the travel route of the vehicle Ve deviates from the route MR based on the driving status information of the vehicle Ve acquired after route guidance is started in the vehicle Ve.

When the server device 200 determines that the travel route of the vehicle Ve does not deviate from the route MR, it acquires content for voice guidance corresponding to the current location of the vehicle Ve on the route MR, and transmits the acquired content. Processing for outputting to the audio output device 100 is performed.

When the server device 200 determines that the travel route of the vehicle Ve is off the route MR, the server device 200 acquires a route MS different from the route MR for guiding the vehicle Ve from the current location to the destination (hereinafter referred to as reroute). ) is performed. That is, when the server device 200 determines that the travel route of the vehicle Ve has deviated from the route MR, the server device 200 detects that the vehicle Ve needs to be rerouted. In addition, when the server device 200 determines that the travel route of the vehicle Ve has deviated from the route MR, the server device 200 has a plurality of voice guidance signals for informing the user that a situation requiring rerouting has occurred in the vehicle Ve. A content group CGA containing content is obtained. The content group CGA includes, for example, a script SCA corresponding to a plurality of sentences "I have deviated from the current driving route. I will search for another driving route." It includes a script SCB corresponding to a plurality of sentences "I will reroute." and a script SCC corresponding to one sentence "Reroute." That is, the script SCB corresponds to a simplified version of the script SCA. Also, the script SCC corresponds to a simplified version of the script SCB.

The server device 200 selects one content according to the number of occurrences of situations requiring rerouting in the vehicle Ve from among a plurality of contents for voice guidance included in the content group CGA, and selects the selected one content. Processing for outputting to the audio output device 100 is performed. In the case where such processing is performed, for example, the storage unit 212 may store in advance information that can specify the number of times the reroute processing has been performed for each vehicle Ve or for each user. Alternatively, when the above-described processing is performed, for example, the storage unit 212 stores in advance information that can specify the output count of each script included in the content group CGA for each vehicle Ve or for each user. Just do it. That is, in the content selection and output processing in this specific example, the output count of each content (script) included in the content group CGA can be used instead of the number of occurrences of situations requiring reroute.

For example, when the number of occurrences of situations requiring reroute is 10 or less, the server device 200 selects a script SCA from among the scripts included in the content group CGA, and outputs the selected script SCA by voice. Processing for output to the device 100 is performed. Then, according to such processing, a voice saying "We have deviated from the current travel route. We will search for another travel route" is output from the speaker 118 of the vehicle Ve to the user.

Further, for example, when the number of occurrences of situations requiring reroute is 11 or more and 50 or less, the server device 200 selects the script SCB from among the scripts included in the content group CGA, and selects the script SCB. Processing for outputting the script SCB to the voice output device 100 is performed. Then, according to such processing, a voice saying "We have deviated from the current driving route. We will reroute." is output from the speaker 118 of the vehicle Ve to the user.

Further, for example, when the number of occurrences of situations requiring reroute is 51 or more, the server device 200 selects a script SCC from among the scripts included in the content group CGA, and selects the selected script SCC. Processing for outputting to the audio output device 100 is performed. Then, according to such processing, a voice saying "I will reroute" is output from the speaker 118 of the vehicle Ve to the user.

According to the processing described above, the server device 200 can acquire a content group including a plurality of voice guidance content for informing passengers of the vehicle Ve of the occurrence of a situation requiring reroute. Further, according to the above-described processing, the server device 200 can output the content corresponding to the number of occurrences of situations requiring rerouting in the vehicle Ve among the respective contents included in the content group. Further, according to the processing described above, when the number of occurrences of situations requiring reroute is equal to or less than a predetermined threshold, the server apparatus 200 outputs the first content included in the content group CGA, and the reroute is performed. When the number of occurrences of the necessary situation exceeds the predetermined threshold, the second content that is included in the content group CGA and that is a simplified version of the first content can be output.

(Specific example 2)
The server device 200 determines whether or not there is traffic congestion on the travel route of the vehicle Ve based on the traffic information included in the driving status information of the vehicle Ve.

When the server device 200 determines that there is no traffic jam on the travel route of the vehicle Ve, the server device 200 acquires content for voice guidance corresponding to the current location of the vehicle Ve, and outputs the acquired content to the voice output device. Processing for output to 100 is performed.

When the server device 200 determines that there is a traffic jam on the travel route of the vehicle Ve, it detects that the vehicle Ve is in a situation where traffic jam may occur. In addition, when the server device 200 determines that a traffic jam is occurring on the travel route of the vehicle Ve, the server device 200 provides voice guidance for notifying the user that a situation in which the vehicle Ve may encounter traffic congestion has occurred. A content group CGB including a plurality of contents for is obtained. The content group CGB includes, for example, a script SCD corresponding to a plurality of sentences such as "There is a 400-meter long traffic jam 2 kilometers ahead of this road. It will take about 5 minutes to cross the traffic jam." A script SCE corresponding to one sentence "Kilometers ahead, 400 meters traffic jam, takes 5 minutes to pass." and a script equivalent to one sentence "2 kilometers ahead, 400 meters traffic jam in 5 minutes." SCF and, are included. That is, the script SCE corresponds to a simplified version of the script SCD. Also, the script SCF corresponds to a simplified version of the script SCE. According to this specific example, for example, parts other than numerical values in the scripts SCD, SCE, and SCF are included in the contents group CGB as fixed phrases, and the numerical parts in the respective scripts are driving situation information. should be changed according to

The server device 200 selects one content according to the number of occurrences of a situation in which the vehicle Ve may encounter a traffic jam from among a plurality of contents for voice guidance included in the content group CGB, and selects the selected one content. to the audio output device 100. It should be noted that in the case where such processing is performed, for example, if the storage unit 212 stores in advance information that can specify the output count of each script included in the content group CGB for each vehicle Ve or for each user. good. That is, in the processing related to content selection and output in this specific example, the number of outputs of each content (script) included in the content group CGB can be used instead of the number of occurrences of situations in which a traffic jam can be encountered.

For example, when the number of occurrences of a situation in which a traffic jam may be encountered is 10 or less, the server device 200 selects a script SCD from each script included in the content group CGB, and voices the selected script SCD. Processing for outputting to the output device 100 is performed. Then, according to such processing, a voice saying "There is a traffic jam of 400 meters in length 2 kilometers ahead of this road. It will take about 5 minutes to pass through the traffic jam." output.

Further, for example, when the number of occurrences of situations in which a traffic jam may occur is 11 times or more and 50 times or less, the server apparatus 200 selects a script SCE from each script included in the content group CGB, and selects the script SCE. Processing for outputting the selected script SCE to the audio output device 100 is performed. Then, according to such processing, a voice saying "2 kilometers ahead, 400 meters of traffic, it will take 5 minutes to pass" is output from the speaker 118 of the vehicle Ve to the user.

Further, for example, when the number of occurrences of situations in which a traffic jam may be encountered is 51 or more, the server device 200 selects a script SCF from each script included in the content group CGB, and to the audio output device 100. Then, according to such processing, a voice saying "2 kilometers ahead, 400 meters, 5 minute traffic jam" is output from the speaker 118 of the vehicle Ve to the user.

According to the processing described above, the server device 200 can acquire a content group including a plurality of content for voice guidance for informing passengers of the vehicle Ve of the occurrence of a situation in which they may encounter traffic congestion. In addition, according to the processing described above, the server apparatus 200 can output the content corresponding to the number of occurrences of situations in which the vehicle Ve may encounter a traffic jam among the contents included in the content group. Further, according to the above-described processing, server device 200 outputs the first content included in content group CGB to avoid traffic congestion when the number of occurrences of situations in which traffic congestion may occur is equal to or less than a predetermined threshold value. can be encountered exceeds the predetermined threshold value, second content that is included in the content group CGB and that is a simplified version of the first content can be output.

It should be noted that the processes described as specific examples above can be applied in substantially the same manner to the occurrence of various situations in the vehicle Ve. That is, the processing described as the specific example above can be applied to the occurrence of a predetermined situation in the vehicle Ve.

(processing flow)
Next, processing performed in the server device 200 will be described. FIG. 4 is a flow chart for explaining the processing performed in the server device.

First, the control unit 214 of the server device 200 detects that a predetermined situation has occurred in the vehicle Ve based on the driving situation information of the vehicle Ve received from the audio output device 100 (step S11).

Next, the control unit 214 acquires a content group including a plurality of voice guidance contents for notifying the user of the occurrence of the predetermined situation detected in step S11 (step S12).

Subsequently, the control unit 214 selects one content according to the number of occurrences of the predetermined situation detected in step S11 from among the plurality of content for voice guidance included in the content group acquired in step S12 ( step S13).

Finally, the control unit 214 performs processing for outputting the content selected in step S13 from the communication unit 211 to the audio output device 100 (step S14), and then terminates the series of processing in FIG. Through such processing, a voice is output to the user to inform the user of the occurrence of a predetermined situation.

According to this embodiment, the control unit 214 has functions as a detection unit and a content acquisition unit. Further, according to this embodiment, the communication unit 211 and the control unit 214 have a function as an output unit.

As described above, according to this embodiment, when a predetermined situation occurs in the vehicle Ve, it is possible to output content for voice guidance according to the number of occurrences of the predetermined situation. Therefore, according to this embodiment, for example, for a user who is unfamiliar with the occurrence of a predetermined situation, it is possible to provide voice guidance that explains the occurrence of the predetermined situation politely or in an easy-to-understand manner. Further, according to the present embodiment, for example, it is possible to provide voice guidance that briefly explains the occurrence of a given situation to a user accustomed to the occurrence of the given situation. Therefore, according to this embodiment, it is possible to reduce the mental burden on the user who uses the vehicle voice guidance.

According to this embodiment, for example, the control unit 114 functions as a detection unit, the communication unit 111 or the control unit 114 functions as a content acquisition unit, and the speaker 118 functions as an output unit. , substantially the same processing as the series of processing in FIG. 4 can be performed in the audio output device 100 .

[Modification]
Modifications suitable for the above embodiment will be described below. In the following description, for the sake of simplification, a detailed description of portions to which the above-described processing and the like can be applied will be omitted as appropriate.

For example, when the number of occurrences of situations requiring reroute is 11 or more and 50 or less, the server apparatus 200 selects the script SCB included in the content group CGA with a probability of P%, and selects the script SCB included in the content group CGA. The included script SCA may be selected with a probability of Q%. In such a case, server apparatus 200 may set the probability so as to satisfy the conditions of P+Q=100 and P>Q. Specifically, the server apparatus 200 may set the value of P to 95 and the value of Q to 5, for example.

Further, for example, when the number of occurrences of situations requiring reroute is 51 or more, the server apparatus 200 selects a script SCC included in the content group CGA with a probability of K%, and the script SCC is included in the content group CGA. The script SCB may be selected with a probability of L %, and the script SCA included in the content group CGA may be selected with a probability of M %. In such a case, the server apparatus 200 may set the probabilities so as to satisfy the conditions of K+L+M=100 and K>L>M. Specifically, the server apparatus 200 may set the value of K to 95, the value of L to 4, and the value of M to 1, for example.

According to the processing according to the modified example described above, when the number of occurrences of a given situation exceeds a given threshold, the server device 200 can provide a content group for informing the user of the occurrence of the given situation. outputs a first content included in the content group with a first probability, and outputs a second content that is included in the content group and is a simplified version of the first content with a second probability higher than the first probability can be output.

In the above-described embodiments, the program can be stored using various types of non-transitory computer readable media and supplied to a control unit or the like that is a computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic storage media (e.g., floppy disks, magnetic tapes, hard disk drives), magneto-optical storage media (e.g., magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R/W, semiconductor memory (eg mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)).

Although the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention. That is, the present invention naturally includes various variations and modifications that a person skilled in the art can make according to the entire disclosure including the scope of claims and technical ideas. In addition, the disclosures of the cited patent documents and the like are incorporated herein by reference.

100 audio output device 200 server device 111, 211 communication unit 112, 212 storage unit 113 input unit 114, 214 control unit 115 sensor group 116 display unit 117 microphone 118 speaker 119 exterior camera 120 interior camera

Claims

a detection unit that detects that a predetermined situation has occurred in the vehicle;
a content acquisition unit for acquiring a content group including a plurality of content for voice guidance for informing passengers of the vehicle of occurrence of the predetermined situation;
an output unit configured to output content according to the number of occurrences of the predetermined situation in the vehicle, among the content included in the content group;
A content output device having
The output unit outputs the first content included in the content group when the number of occurrences of the predetermined situation is equal to or less than a predetermined threshold, and the number of occurrences of the predetermined situation exceeds the predetermined threshold. 2. The content output device according to claim 1, which outputs second content, which is included in the content group and which is a simplified version of the first content, when the second content is included in the content group.
The output unit outputs the first content included in the content group with a first probability when the number of occurrences of the predetermined situation exceeds a predetermined threshold, and outputs the first content included in the content group and the first content included in the content group. 2. The content output device according to claim 1, wherein a second content obtained by simplifying one content is output with a second probability higher than the first probability.
The content output device according to any one of claims 1 to 3, wherein the predetermined situation is a situation requiring reroute.
The content output device according to any one of claims 1 to 3, wherein the predetermined situation is a situation in which traffic congestion may occur.
Detecting that a predetermined situation has occurred in the vehicle,
Acquiring a content group including a plurality of contents for voice guidance for informing passengers of the vehicle of occurrence of the predetermined situation;
A content output method for outputting content according to the number of occurrences of the predetermined situation in the vehicle, among the content included in the content group.
A program executed by a content output device comprising a computer,
a detection unit that detects that a predetermined situation has occurred in the vehicle;
a content acquisition unit for acquiring a content group including a plurality of content for voice guidance for informing passengers of the vehicle of occurrence of the predetermined situation;
A program that causes the computer to function as an output unit that outputs content corresponding to the number of occurrences of the predetermined situation in the vehicle, among the contents included in the content group.
A storage medium storing the program according to claim 7.