JP2006139771A - Onboard output device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable outputting rich and various contents data depending on status changes of a vehicle without complicated operations by occupants. <P>SOLUTION: An onboard output device is comprised of a vehicle scene setting part 10, data managing part 20, data extracting part 30 and output controlling part 40. The part 10 acquires status of/around the vehicle and sets a vehicle scene which includes a plurality of entries of attribute values from acquired results. The part 20 manages a plurality of contents data to which the attribute values concerning the vehicle scene are related. The part 30 extracts the contents data to which adaptable attribute values are related, based on comparison results with the attribute values included in the vehicle scene set by the vehicle scene setting part 10. The part 40 gives the contents data which the data extracting part 30 extracts to the output equipment 101. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an in-vehicle output device that is mounted on a vehicle and outputs content data such as sound source data and image / video data.

  In recent years, user requirements for vehicles have also diversified, and emphasis has been placed not only on exercise performance such as acceleration and maneuverability, but also on comfort in the passenger compartment.

  Conventionally, in-vehicle playback apparatuses that play back music data suitable for the situation of the vehicle and / or the vicinity of the vehicle have been provided in order to meet such demands for improving comfort. According to this in-vehicle playback device, for example, if the travel position or the nearby weather is specified as selection information, the music suitable for the current travel position or the current weather can be obtained without the vehicle passenger directly instructing the music data. The music suitable for the vehicle is sequentially reproduced, and the comfort in the passenger compartment can be improved (for example, see Patent Document 1).

JP 2001-189969 A

  However, in the in-vehicle playback device described in Patent Document 1, for example, when a travel position is specified as selection information, the music data is changed due to a change in the travel position, but the same music is transmitted every time when passing through the same place. Will be played. This is the same even when the situation other than the specified selection information changes, for example, when the passing time zone changes from morning to night, and is reproduced regardless of the weather when passing. The music that is played is not changed. On the other hand, when the weather near the vehicle is designated as the selection information, the same music is repeatedly reproduced as long as there is no change in the weather near the vehicle, regardless of the time zone where the vehicle travels. After all, in the in-vehicle playback device described in Patent Document 1, the music played after specifying the selection information has to be extremely poor in variation, so that the comfort in the passenger compartment can be improved. Is not reached.

  Incidentally, in Patent Document 1, as selection information designated by the passenger, in addition to the traveling position and weather, the vehicle traveling speed, nearby traffic information, destination information, passenger mood, passenger information, etc. Items are listed. However, the selection information once designated does not automatically switch with a change in the vehicle situation, and it is necessary for the passenger to re-specify the selection information each time in order to solve the above-described problem.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an in-vehicle output device capable of outputting content data rich in variations in accordance with changes in vehicle conditions without requiring a complicated operation by a passenger. And

  In order to solve the above-described problems and achieve the object, an in-vehicle output device according to the invention of claim 1 is an in-vehicle output device that outputs content data through an output device mounted on a vehicle. Vehicle scene setting means for acquiring a situation around the vehicle as scene information and setting a vehicle scene including attribute values of a plurality of items from the acquisition result, and attributes related to the vehicle scene for each of a plurality of content data Data extraction means for extracting content data associated with matching attribute values based on a comparison result between a data management means for managing values in association with each other and attribute values included in the vehicle scene set by the vehicle scene setting means And output control means for providing the content data extracted by the data extraction means to the output device.

  According to the first aspect of the present invention, the vehicle and / or the situation around the vehicle is set as a vehicle scene including a plurality of attribute values, and content data is output based on the vehicle scene.

  According to a second aspect of the present invention, there is provided the in-vehicle output device according to the first aspect of the invention, wherein the data extracting means has an attribute table in which priorities are set in advance for attribute values included in the vehicle scene. Content data is extracted according to the priority set in the table.

  According to the second aspect of the present invention, content data is extracted according to the priority set in the attribute table.

  According to a third aspect of the present invention, there is provided the in-vehicle output device according to the first aspect of the invention, wherein the vehicle scene setting means includes a change point of the next vehicle scene to be visited based on the vehicle and / or scene information acquired from the vehicle periphery, and The output control means has a function of predicting the reach distance, and switches the content data to be provided to the output device when the vehicle scene change point is reached.

  According to the third aspect of the present invention, when the vehicle scene change point is reached, content data conforming to the change point is output.

  According to a fourth aspect of the present invention, there is provided the in-vehicle output device according to the first aspect, wherein the output control means outputs the attribute value included in the vehicle scene set by the vehicle scene setting means and the output device at present. In addition to comparing the attribute value associated with the content data, notification data for notifying the compatibility status of each other is generated from the comparison result of both, and this is provided to the output device.

  According to the fourth aspect of the present invention, the compatibility situation between the vehicle scene and the content data currently output is notified.

  Further, in the in-vehicle output device according to the invention of claim 5, in the invention of claim 1, the output control means generates index data for displaying a list of identification information of the content data extracted by the data extraction means, This is characterized by being given to an output device.

  According to the invention of claim 5, the identification information of the content data extracted by the data extracting means is displayed as a list on the output device.

  According to a sixth aspect of the present invention, there is provided the in-vehicle output device according to the first aspect of the invention, wherein the output control means sequentially reproduces each characteristic portion when the content data extracted by the data extraction means is sound source data. The index data is generated and given to the output device.

  According to the sixth aspect of the present invention, the characteristic portions of the content data extracted by the data extracting means are sequentially reproduced from the output device.

  The on-vehicle output device according to the invention of claim 7 is the invention according to claim 5 or 6, wherein the output control means receives the content data selection information based on the index data output from the output device. The selected content data is provided to an output device.

  According to the seventh aspect of the present invention, when content data is selected based on the index data output from the output device, the content data is output from the output device.

  An in-vehicle output device according to an invention of claim 8 is the invention according to any one of claims 1 to 7, wherein the vehicle scene setting means includes items of scenery, time, and weather around the host vehicle. It is characterized by setting a vehicle scene.

  According to the eighth aspect of the present invention, the in-vehicle output device sets a vehicle scene including at least items of scenery, time, and weather.

  According to a ninth aspect of the present invention, there is provided the in-vehicle output device according to any one of the first to eighth aspects, wherein the data extracting means sets the weighting for each item based on the vehicle scene, and The comparison with the vehicle scene is performed by reflecting the weight on the attribute value associated with the data.

  According to the ninth aspect of the present invention, the in-vehicle output device sets weights for the respective items based on the vehicle scene, and compares the weights with the attribute values associated with the content data and performs comparison with the vehicle scene. .

  According to a tenth aspect of the present invention, there is provided an in-vehicle output device according to any one of the first to ninth aspects, wherein the data extracting means excludes content data reproduced within a predetermined time. It is characterized by doing.

  According to the tenth aspect of the present invention, the in-vehicle output device excludes content data reproduced within a predetermined time and extracts content data matching the scene.

  According to an eleventh aspect of the present invention, there is provided the in-vehicle output device according to any one of the first to tenth aspects, wherein the content data extracting means is based on an instruction from the user or changes in the vehicle scene. The content data is extracted when it is detected autonomously.

  According to the eleventh aspect of the present invention, the in-vehicle output device extracts content data that matches a scene based on an instruction from a user or when a change in a vehicle scene is detected autonomously.

  An in-vehicle output device according to a twelfth aspect of the present invention is the invention according to any one of the first to eleventh aspects, further comprising purchase processing means for performing a content data purchase process, wherein the data extraction means is: Unpurchased content data is extracted, and purchase processing is performed based on an instruction from the user.

  According to the twelfth aspect of the present invention, the in-vehicle output device extracts unpurchased content data in accordance with the scene and performs purchase processing.

  According to the first aspect of the present invention, the situation of the vehicle and / or the surroundings of the vehicle is set as a vehicle scene including a plurality of attribute values, and content data is output based on the vehicle scene. Even if complicated operations are not performed, detailed situation changes that occur in the vehicle and / or around the vehicle will be set as different vehicle scenes, making it possible to output content data rich in variations. There is an effect.

  According to the invention of claim 2, since the content data is extracted according to the priority set in the attribute table, for example, if the priority of the attribute item having a strong impression is set high, the content data more suitable for the situation at that time It is possible to perform the output of.

  According to the third aspect of the invention, when the change point of the vehicle scene is reached, content data that matches the change point is output, so that the presence of the passenger can be increased.

  According to the fourth aspect of the present invention, since the compatibility situation between the vehicle scene and the currently output content data is notified, the passenger can be made aware of the current situation.

  According to the invention of claim 5, since the identification information of the content data extracted by the data extracting means is displayed in a list on the output device, there is an effect that the content data corresponding to the situation can be easily recognized.

  According to the sixth aspect of the present invention, since the characteristic portions of the content data extracted by the data extracting means are sequentially reproduced from the output device, there is an effect that the content data corresponding to the situation can be easily recognized.

  According to the seventh aspect of the present invention, if content data is selected based on the index data output from the output device, the content data is output from the output device, thereby facilitating the content data output operation. There is an effect that can be.

  According to the invention of claim 8, since the vehicle output device sets a vehicle scene including at least the scenery, time, and weather items, a vehicle output device that automatically selects appropriate content data is obtained. There is an effect that can be.

  According to the ninth aspect of the present invention, the in-vehicle output device sets a weight for each item based on the vehicle scene, and compares the weight with the attribute value associated with the content data to compare with the vehicle scene. As a result, there is an effect that it is possible to obtain a vehicular output device that selects content data that is highly suitable for a scene.

  According to the invention of claim 10, the in-vehicle output device excludes content data reproduced within a predetermined time and extracts content data matching the scene, so that the reproduction frequency is biased to specific content data. The effect that the output device for vehicles which can prevent is obtained is produced.

  According to the invention of claim 11, the in-vehicle output device extracts content data that matches the scene based on an instruction from the user or when a change in the vehicle scene is detected autonomously. There is an effect that it is possible to obtain a vehicular output device capable of extracting content data at an arbitrary timing.

  According to the invention of claim 12, since the in-vehicle output device extracts unpurchased content data in accordance with the scene and performs purchase processing, the vehicle output device that supports the purchase of content data that matches the scene. There is an effect that can be obtained.

  Exemplary embodiments of an in-vehicle output device according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram showing a schematic configuration of an in-vehicle output device according to an embodiment of the present invention. The on-vehicle output device illustrated here outputs content data such as sound source data and image / video data through an output device 101 such as a speaker or a display mounted on a vehicle. Unit 20, data extraction unit 30, output control unit 40, and main control unit 50.

  The vehicle scene setting unit 10 acquires a vehicle and / or a situation around the vehicle as scene information, and sets a vehicle scene from the acquisition result.

  Examples of the scene information acquired by the vehicle scene setting unit 10 include vehicle information, area information, illuminance information, weather information, and time information. The vehicle information is information indicating a situation of the vehicle itself such as a traveling speed and a traveling direction. Area information is information about the current position of the vehicle and the location of the destination, such as “coastline”, “mountainous area”, “urban area”, “farm”, “sea”, “mountain”, “famous place”, etc. is there. The illuminance information is information indicating a situation related to the brightness around the vehicle, such as “bright”, “lightly dark”, “dark”, and the like. The meteorological information is information indicating a situation related to the weather around the vehicle such as “sunny”, “cloudy”, “rain”, “snow”, “fog”, “strong wind”, “typhoon”, “snowstorm”, and the like. Time information shows the current time and time zone such as “morning”, “daytime”, “evening”, “night”, or the situation regarding seasons such as “spring”, “summer”, “autumn”, “winter”, etc. It is information to show.

  These scene information is input information from the input means operated by the passenger, detection information by various detection devices such as a camera, illuminance sensor, raindrop sensor, speed sensor, etc. mounted on the vehicle, and from various information sites. The distribution information can be acquired as appropriate. As for the area information, various data relating to the location can be set in advance in the map data, and the area information can be obtained from a combination with position information obtained by using a system such as GPS (Global Positioning System).

  The vehicle scene set by the vehicle scene setting unit 10 is data representing the current vehicle situation or the next predicted vehicle situation, and includes at least two attribute values.

  The attribute values included in the vehicle scene are vehicle information, area information, illuminance information, weather information, and time information acquired as scene information. More specifically, for example, the vehicle scene setting unit 10 that has acquired “shoreline” as area information, “midsummer” and “daytime” as time information, and “bright” as illuminance information, respectively, Set a bright coastline. Further, when “mountain part” is acquired as area information and “night” is acquired as time information, the vehicle scene setting unit 10 sets “night mountain part” as the vehicle scene.

  In addition, when the next predicted vehicle scene is set, in addition to the attribute values described above, data that predicts the arrival distance to a point (change point) where the vehicle scene is changed is included.

  The data management unit 20 manages and stores a plurality of content data in a data storage unit 102 such as a hard disk in a state in which attribute values related to vehicle scenes are associated with each other. The content data stored in the data management unit 20 is acquired by downloading in advance a data acquired via a storage medium such as a CD (CompactDisc) or a DVD (DigitalVersatileDisc) or uploaded to a content server. .

  The attribute value associated with the content data has at least one of vehicle information, area information, illuminance information, weather information, and time information acquired as scene information by the vehicle scene setting unit 10 as an attribute item, and the content data is output The one that best fits the impression. More specifically, for example, content data A impressing “bright sea” is associated with attribute values “bright” and “ocean”, and another content data B impressing “mountain” is “ The attribute value “mountain” is associated with the attribute values “spring”, “cherry blossom”, and “rural area” to the content data C that impresses “the rural area where the cherry blossoms bloom”.

  The association between the content data and the attribute value is preferably executed in advance when recording on a CD or DVD or uploading to a content server, but the data management unit 20 stores the content data in the data storage unit 102. It may be performed each time.

  When a vehicle scene is given, the data extraction unit 30 extracts a suitable one from content data stored in the data storage unit 102 based on a comparison result with an attribute value included in the vehicle scene. . When extracting content data, an attribute table 31 in which priorities are set in advance for attribute values included in the vehicle scene is used as appropriate.

  More specifically, when a vehicle scene of “bright coastline in midsummer daytime” is given, the data extraction unit 30 sets the attribute values “midsummer” and “daytime” related to time information and the attribute value “bright” related to illuminance information. After obtaining the attribute value “coastline” regarding the area information, a search is performed using the content data stored in the data storage unit 102 associated with attribute values related to these as extraction targets. In this case, if there is content data in which all of “midsummer”, “daytime”, “bright”, and “coast line” are associated, it is extracted as the most suitable one.

  When there is no content data associated with all the attribute values, or when a plurality of content data is extracted, the content data associated with the three attribute values is extracted. At this time, the data extraction unit 30 refers to the priority set in the attribute table 31 and searches for content data associated with the top three attribute values as an extraction target. Thereafter, the target content data is extracted by executing the same processing. If the given vehicle scene includes data that predicts the reaching distance to the changing point, the data extraction unit 30 performs processing for associating the predicted reaching distance data with the extracted content data.

  FIG. 2 shows an example of the attribute table 31 described above. The content data illustrated here is sound source data, video data 1, and video data 2. The video data 1 shows video that matches the vehicle scene, and the video data 2 shows the characteristics of the area. For example, the video data 1 includes videos of general mountains and coastlines, and the video data 2 includes videos of Mt. Fuji, Matsushima, Kenrokuen, and the like.

  As is clear from FIG. 2, the illuminance information and the weather information have a higher priority for the sound source data and the video data 1 than the area information, and conversely, the video data 2 has the priority for the illuminance information and weather information. Area information has a high priority. In the former case, for example, in the case of “the sea on a downpour”, the image of “downpour rain” is stronger than the “sea”, so the priority of the weather information is higher than the area information. In the latter case, for example, regardless of actual weather and illuminance, it is for outputting a video peculiar to the place, so the priority of the area information is higher than other information.

  As shown in FIG. 1, the output control unit 40 of the in-vehicle output device controls information output from the output device 101 such as a speaker or a display, and includes an advice unit 41, a support unit 42, an intervention unit 43, and an output. A selection unit 44 is included.

  When there is content data that is received from the vehicle scene and currently output from the output device 101, the advice unit 41 compares the attribute value associated with the content data with the attribute value included in the vehicle scene. From the comparison result, notification data for notifying the compatibility status of both is generated and given to the output device 101.

  When receiving the content data, the support unit 42 generates index data for displaying a list of identification information of the content data, for example, file names, and gives this to the output device 101. Further, when the received content data is sound source data, the support unit 42 generates index data for sequentially reproducing the intro part and the climax part, and gives this to the output device 101.

  The support unit 42 monitors the content data selection information until the preset time elapses after the index data is given to the output device 101. The content data selection information may be output when the selection switch 103 prepared in advance is appropriately turned on, for example. When the content data selection information is input based on the output of the index data, the support unit 42 also performs a process of giving the content data selection information to the intervention unit 43.

  When the intervention unit 43 receives the content data, the intervention unit 43 performs a process of giving the content data to the output device 101. The timing at which the content data is given to the output device 101 differs between when the content data alone is received and when the content data is received together with the predicted reach distance data. That is, in the former case, the received content data is immediately given to the output device 101, whereas in the latter case, the output device 101 is reached when the vehicle scene change point specified based on the received predicted reach distance data is reached. Process to give to.

  The output selection unit 44 sets whether to pass through the support unit 42 when the content data extracted by the data extraction unit 30 is given to the intervention unit 43. Regarding the setting of the output selection unit 44, for example, when the setting switch 104 prepared in advance is turned on, it is sufficient to pass through the support unit 42.

  The main control unit 50 controls the vehicle scene setting unit 10, the data management unit 20, the data extraction unit 30, and the output control unit 40 as described above to output content data suitable for the vehicle scene through the output device 101. Is embodied.

  FIG. 3 is a flowchart showing the processing contents executed by the main control unit 50 when the above-described in-vehicle output device is operating. Hereinafter, the operation of the in-vehicle output device will be described with reference to FIG. In the following, for the sake of convenience, it is assumed that the passenger of the vehicle has performed a selection operation of “reproduce content data randomly”.

  First, the main control unit 50 of the in-vehicle output device performs a process of acquiring scene information through the vehicle scene setting unit 10 (step S100). The timing for acquiring the scene information may be continuously acquired, or when the travel distance of the vehicle reaches a preset value or every time the scene information acquisition point set in advance in the map data is reached. You may make it acquire to.

  The main control unit 50 that has acquired the scene information sets a vehicle scene through the vehicle scene setting unit 10 based on the acquisition result (step S200), and performs content data extraction processing through the data extraction unit 30 based on the set vehicle scene. This is performed (step S300).

  The vehicle scene setting process and / or the content data extraction process do not necessarily need to be performed every time the scene information is acquired. For example, these processes are performed only when the acquired scene information has changed significantly. It doesn't matter. If the content data suitable for the vehicle scene does not exist in the data storage unit 102, the main control unit 50 searches and downloads the content data suitable for the content server, and further transmits the data via the data management unit 20. You may make it extract this, after storing in the memory | storage part 102. FIG.

  The main control unit 50 that has extracted the content data executes an output control process to output the content data from the output device 101 (step S400).

  FIG. 4 is a flowchart showing details of the output control process. In the output control process, the main control unit 50 first determines whether or not the vehicle scene set in step S200 is given to the output control unit 40 (step S410), and further outputs content data in the current output device 101. It is determined whether or not (step S420). When the vehicle scene is not given to the output control unit 40, or when content data is not currently output from the output device 101, the main control unit 50 advances the procedure to step S440 without executing the below-described advice processing. .

  On the other hand, when a vehicle scene is given to the output control unit 40 and content data is currently being output from the output device 101, the main control unit 50 executes an advice process (step S430).

  In this advice processing, as shown in FIG. 5, the main control unit 50 performs processing for acquiring attribute values of content data currently output through the data management unit 20 (step S431). Further, the main control unit 50 compares the attribute value of the content data with the attribute value included in the vehicle scene through the advice unit 41 of the output control unit 40 (step S432), and a notification for reporting the compatibility status of both. Data is generated (step S433). The notification data is, for example, display data for displaying the adaptation status through a display and / or audio data for outputting the adaptation status through a speaker.

  Therefore, if the notification data is transmitted to the output device 101 in step S434, the compatibility status between the current vehicle scene and the currently output content data is notified from the display and / or the speaker. For example, when a Christmas song is played from the speaker even though the vehicle is running on the “midsummer coastline”, “the song currently being played is suitable for“ winter night ” It does not fit the current vehicle scene. ”And the vehicle passenger can be made aware of the current situation. In this case, it may be possible to actively advise that “the song that matches the current vehicle scene is XX”. On the contrary, if the content data currently output matches the current vehicle scene as a result of the comparison performed in step S432, it is preferable not to generate the notification data or to generate only the display data. .

  As shown in FIG. 4, the main control unit 50 that has finished the advice process next determines whether or not the content data extracted in step S300 is given to the output control unit 40 (step S440). When the content data is not given to the output control unit 40, the procedure is returned without performing support processing and intervention processing described later.

  On the other hand, when the content data is given to the output control unit 40, it is further determined whether or not the setting switch 104 is turned on (step S450). When the setting switch 104 is turned on, that is, when content data is given to the support unit 42, intervention processing is performed after the support processing is performed, and when the setting switch 104 is not turned on, that is, content data. Is provided to the intervention unit 43 without passing through the support unit 42, the intervention process is performed without performing the support process (steps S460 and S470).

  As shown in FIG. 6, in the support process, the main control unit 50 generates index data from the content data given through the support unit 42 (step S461), and performs a process of giving this to the output device 101 (step S462). ). As a result, in the output device 101, the file names of the selected content data are displayed in a list on the display unit, or when the selected content data is sound source data, the respective characteristic portions are sequentially reproduced from the speaker. become. Therefore, the vehicle occupant can easily recognize the content data suitable for the current situation based on the index data output from the output device 101. In this case, it is preferable to output the index data in order from the one suitable for the vehicle scene.

  After transmitting the index data to the output device 101, the main control unit 50 monitors the selection switch 103 until a preset time elapses (step S463, step S464), and selects before the time is up. When the switch 103 is turned on, content selection information is given to the intervention unit 43 (step S465), and then the procedure is returned. When the set time has passed without the selection switch 103 being turned on, the procedure is returned without performing step S465.

  Next, in the intervention process, as shown in FIG. 7, the main control unit 50 first determines whether or not selection information is included in the given content data (step S471). If the selection information is included in the content data, only the content data corresponding to the selection information is set as output data (step S472). On the other hand, if the selection information is not included in the content data, step The content data extracted in S300 is set as output data (step S473).

  Further, the main control unit 50 determines whether or not predicted reach distance data is associated with the content data set as output data (step S474). When the predicted reach distance data is not associated with the content data set as the output data, the main control unit 50 immediately performs a process of transmitting the output data to the output device 101 (step S476). As a result, since content data suitable for the current vehicle scene is output from the output device 101, the interior of the vehicle interior becomes suitable for the vehicle scene, and the passenger feels comfortable.

  On the other hand, when the predicted arrival distance data is associated, in other words, when the vehicle scene set in step S200 is to predict the next visit, until the change point is reached. After waiting, a process of giving output data to the output device 101 is performed (steps S475 and S476). As a result, the content data output from the output device 101 is changed to be compatible with the vehicle scene as soon as the vehicle passes through the change point, that is, when the vehicle scene changes. The change in the atmosphere is more realistic. If the content data is sound source data, fade out and fade in, that is, gradually decrease the volume of the currently playing sound source data and play the sound source data at a high volume at the same time as passing through the change point. This is preferable because the effect is further increased.

  Thereafter, the processing described above is repeatedly executed, and content data suitable for the vehicle scene is output to the vehicle interior. Therefore, according to the on-vehicle output device, the passengers of the vehicle always have a pleasant feeling and can improve the comfortability.

  In addition, the situation of the vehicle and / or the surroundings of the vehicle is set as a vehicle scene including a plurality of attribute values, and content data is output based on the vehicle scene. Therefore, even if you travel the same place repeatedly, that is, if there is no change in the area information, if the time zone that passes through in the morning and night changes, or the season changes between spring, summer, autumn and winter. If the weather situation changes, the set vehicle scenes will be different from each other. As a result, even if the passenger does not perform a complicated operation, the vehicle and / or minute situation changes that occur around the vehicle are set as different vehicle scenes, and content data rich in variations is output. It becomes possible.

  In addition, when the situation of a vehicle and / or a vehicle periphery changes frequently within a short time, there is a possibility that content data output from the output device is frequently changed. Especially in the case of sound source data, since the performance time is set, there is a possibility that the performance is interrupted if the change is frequent. Therefore, when setting the vehicle scene, in order not to cause these problems, for example, the vehicle scene is set as a single area from the starting point to the destination, and the setting can be made in a range where the change point does not occur frequently. preferable.

  By the way, setting of scenes and attributes, extraction of content data, and the like can be performed with appropriate changes. Hereinafter, modifications of the present invention will be described.

  First, FIG. 8 shows an example of a scene and attribute setting method. In the figure, a scene is specified by three attributes of “scenery”, “time zone”, and “weather”. Furthermore, weighting (attribute importance ratio) is set for each attribute for each scene, and content data is extracted using this ratio.

  Specifically, the attribute of “scenery” takes one of four values: “1: along the coast”, “2: mountainous area”, “3: urban area”, and “4: rural area”. . The attributes of “time zone” are “1: early morning (5-8 o'clock)”, “2: morning (8-12 o'clock)”, “3: noon (12-17 o'clock)”, “4: night ( It takes one of the five values “17:00 to 23:00” and “5: midnight (23:00 to 5:00)”. Similarly, the attribute of “weather” takes one of four values of “1: clear”, “2: cloudy”, “3: rain”, and “4: snow”.

  For example, in the scene of “along the coast”, “daytime”, and “rain”, the attribute importance ratio “scenery: time zone: weather” is set to “10:30:60”, and “along the coast”, “daytime”, “sunny” In the scene, the attribute importance ratio “landscape: time zone: weather” is set to “50:40:10”.

  In other words, when the weather is rainy, the weather image is more strongly affected by the user than the attributes such as the scenery, so the importance of the weather attribute is increased, and when the weather is clear, the surrounding scenery Since the image acts strongly on the user, the attribute importance of the scenery is increased.

  In this way, by changing the weighting for each attribute according to the scene, it is possible to select content data that is particularly suited to the user's impression in each situation.

  Selection of content data when this weighting is used will be further described with reference to FIG. In the figure, the scenes set by the vehicle scene setting unit 10 are “coastal”, “daytime”, and “sunny”, and the attribute importance ratio is “50:40:10”.

  The music data A to D stored in the data storage unit 102 are assigned attribute values of “scenery”, “time zone”, and “weather” corresponding to the contents. Note that the attribute values assigned to the content data do not necessarily need to be set for all attributes, and may have a “no target” attribute like the weather of the music data B.

  When selecting from these data, for the attribute that matches the scene, a score corresponding to the importance of the attribute is given, and the result of totaling the scores of each item is compared.

  For example, the attribute values of the music data A are “1: along the coast”, “3: noon”, “1: clear”, and all items match the scene. The scoring result is “100”, which is the sum of the time zone importance “40” and the weather importance “10”.

  The music data B has a landscape attribute value “1: along the coast”, a time zone attribute value “3: noon”, and the weather “no target”. Therefore, the scoring result is “90”, which is the sum of the importance “50” of the scenery and the importance “40” of the time zone.

  Further, the attribute values of the music data C are “1: along the coast”, “2: morning”, “1: clear”, the attribute values of the scenery and the weather match, and the attribute values of the time zone do not match. . Therefore, the scoring result is “60”, which is the sum of the importance level “50” of scenery and the importance level “10” of weather.

  Similarly, the attribute values of the music data D are “3: urban area”, “3: noon”, “4: snow”, only the attribute values of the time zone match, and the attribute values of the scenery and the weather match. do not do. Therefore, the time zone importance “40” is the scoring result.

  After performing such scoring, music data matching a scene can be selected by selecting music data of a predetermined score or more, or a predetermined number of music data in order of high score.

  Next, a processing operation when music data is reproduced at random using the attribute importance ratio will be described with reference to the flowchart of FIG. The processing flow shown in the figure is repeatedly executed when the user instructs the scene-linked random reproduction, that is, random reproduction of music data matching the scene.

  In the figure, first, the in-vehicle output device determines whether or not the scene-linked random playback is being performed (step S1101). If the scene-linked random playback is not being performed (step S1101, No), the processing ends. .

  On the other hand, if the scene-linked random playback is being performed (step S1101, Yes), the in-vehicle output device waits until the music data being played back (sound source being played back) is less than 60 seconds (step S1102).

  If it is less than 60 seconds until the end of the sound source during reproduction (step S1102, Yes), the scene characteristics at the current location, that is, the landscape attribute, the time zone attribute, and the weather attribute are acquired (step S1103).

  Subsequently, the scene characteristic (attribute value of each attribute) of the music data stored in the data storage unit 102 (here, the hard disk drive) is acquired (step S1104), and the music data is selected by comparison with the scene characteristic of the current location ( Step S1105).

  Further, the music data reproduced within a predetermined time (here, within 24 hours) is deleted from the candidates (step S1106). The reason why the data reproduced within a predetermined time is excluded is to prevent the same music data from being reproduced repeatedly in the same scene and to give variations to the reproduced music.

  If there is any remaining music data after step 1106 (step S1107, Yes), the music data (the highest score data if there are a plurality of remaining music data) is registered as the next reproduction sound source (step S1108). . If there is no remaining music data (No in step S1107), a normal random playback sound source is selected (for example, selected randomly from all music data) and registered as the next playback sound source (step S1109). ).

  After that, the in-vehicle output device waits until the music data being reproduced (sound source being played) ends (step S1110), and after the sound source being played ends (step S1110, Yes), the playback of the next playback sound source is started. (Step S1111), the process ends.

  In the above description, content data stored in the data storage unit 102 and arbitrarily reproducible has been described. However, for example, content data that has not been purchased by a user can be introduced according to a scene.

  In this case, the main control unit 50 has a function of purchasing content data. The method of purchasing content data may be a download from a server, or may be configured to store data whose reproduction is restricted as unpurchased data in the data storage unit 102 and release the restriction by purchase processing. Further, it is preferable to encourage the purchase of the user by making it possible to view a part of the unpurchased content data as a sample.

  Introduction of unpurchased content data in accordance with a scene may be executed based on a user request, or may be executed autonomously when a change in the scene is detected. FIG. 11 shows a flowchart for explaining introduction processing of unpurchased content data when there is a request from the user.

  As shown in the figure, when there is a request for introduction of unpurchased music data from the user (step S1201, Yes), the in-vehicle output device displays the scene characteristics at the current location, that is, the landscape attribute, the time zone attribute, and the weather attribute. Obtain (step S1202).

  Next, scene characteristics (attribute values of each attribute) of unpurchased music data are acquired (step S1203), and music data is selected by comparison with the scene characteristics of the current location (step S1204). If there is no matching unpurchased music data (step S1205, No), the process is terminated as it is. If there is matching music data (step S1205, Yes), the list is displayed together with the sample playback switch. (Step S1206).

  Thereafter, if the sample playback switch is turned on (step S1207, Yes), the sample sound source is played back (step S1210), and if there is a purchase instruction from the user (step S1211, Yes), the specified music data is purchased ( Authentication and billing are performed for reproduction (step S1212). On the other hand, if there is no purchase instruction (step S1211, No), the process is terminated as it is.

  If the sample playback switch is not turned on (step S1207, No), the display waits for 30 seconds (step S1208), and after 30 seconds have elapsed (step S1208, Yes), the display of the unpurchased scene matching music data list is canceled. (Step S1209), and the process ends.

  Next, processing when introducing unpurchased content data autonomously upon detection of a scene change will be described with reference to the flowchart of FIG.

  As shown in the figure, the in-vehicle output device is used when the current position of the own vehicle is within 700 m from the change point of the scenery and the next changed scenery has a section length of 1 km or more (step S1301, Yes). The scene characteristics at the current location, that is, the landscape attribute, the time zone attribute, and the weather attribute are acquired (step S1302).

  Next, scene characteristics (attribute values of each attribute) of unpurchased music data are acquired (step S1303), and music data is selected by comparison with the scene characteristics of the current location (step S1304). If there is no matching unpurchased music data (step S1305, No), the processing is ended as it is, and if there is matching music data (step S1305, Yes), the list is displayed together with the sample reproduction switch. (Step S1306).

  Thereafter, if the sample playback switch is turned on (step S1307, Yes), the sample sound source is played back (step S1310), and if there is a purchase instruction from the user (step S1311, Yes), the specified music data is purchased ( Authentication and billing are performed for reproduction (step S1312). On the other hand, if there is no purchase instruction (step S1311, No), the process is terminated as it is.

  If the sample playback switch is not turned on (step S1307, No), the display waits for 30 seconds (step S1308), and after 30 seconds have elapsed (step S1308, Yes), the display of the unpurchased scene matching music data list is canceled. (Step S1309) and the process is terminated.

  In this processing flow, when the same scenery continues for 1 km or more, content data corresponding to the scene is extracted, but this is because the music that matches the scene is changed for a short time because the scene is frequently switched. This is to avoid changes in Similar processing can be adopted in the other determinations described above, and the section length is not limited to 1 km, and any value can be used.

  Further, in the flowcharts shown in FIG. 12 and FIG. 11, the case where the sample reproduction of the content data is performed has been described as an example. However, the sample reproduction is not necessarily required, and may be indicated by, for example, a list display.

  As described above, the in-vehicle output device according to the present invention can automatically select and reproduce or introduce content data linked to a vehicle scene. In addition, the scene of the vehicle is determined based on the scenery stored in the map data, the time information acquired from the GPS, the weather acquired from the raindrop sensor or information site, etc., and the content that matches the scene by weighting each attribute Data can be selected with high accuracy.

It is a block diagram which shows schematic structure of the vehicle-mounted output device which is embodiment of this invention. 3 is a chart showing a specific example of an attribute table shown in FIG. 1. It is a flowchart which shows the content of the process which the main control part of the vehicle-mounted output apparatus shown in FIG. 1 implements. FIG. 4 is a flowchart showing details of output control processing shown in FIG. 3. FIG. 5 is a flowchart showing details of the advice processing shown in FIG. 4. 5 is a flowchart showing details of the support process shown in FIG. 4. It is a flowchart which shows the detail of the intervention process shown in FIG. It is explanatory drawing explaining the setting method of the scene and attribute using weighting (the 1). It is explanatory drawing explaining the setting method of the scene and attribute using weighting (the 2). It is explanatory drawing explaining selection of the content data using weighting. It is a flowchart explaining the scene interlocking random reproduction process based on a user instruction. It is a flowchart explaining the scene matching content data introduction process based on a user instruction. It is a flowchart explaining the autonomous scene matching content data introduction process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle scene setting part 20 Data management part 30 Data extraction part 31 Attribute table 40 Output control part 41 Advice part 42 Support part 43 Intervention part 44 Output selection part 50 Main control part 101 Output apparatus 102 Data storage part 103 Selection switch 104 Setting switch

Claims (12)

An in-vehicle output device that outputs content data through an output device mounted on a vehicle,
Vehicle scene setting means for acquiring a vehicle and / or a situation around the vehicle as scene information and setting a vehicle scene including attribute values of a plurality of items from the acquisition result;
Data management means for managing attribute values related to vehicle scenes in association with a plurality of content data,
Data extraction means for extracting content data associated with matching attribute values based on a comparison result with attribute values included in the vehicle scene set by the vehicle scene setting means;
An in-vehicle output device comprising: output control means for giving content data extracted by the data extraction means to an output device.   The data extraction means has an attribute table in which priorities are set in advance for attribute values included in a vehicle scene, and extracts content data according to the priorities set in the attribute tables. The on-vehicle output device described. The vehicle scene setting means has a function of predicting a change point of a vehicle scene to be visited next and a reaching distance thereof based on scene information acquired from the vehicle and / or around the vehicle,
The in-vehicle output device according to claim 1, wherein the output control means performs switching of content data to be given to the output device when the change point of the vehicle scene is reached.   The output control means compares the attribute value included in the vehicle scene set by the vehicle scene setting means with the attribute value associated with the content data currently output by the output device, and based on the comparison result between the two, The in-vehicle output device according to claim 1, wherein notification data for notifying a conformity state is generated and given to an output device.   2. The in-vehicle output device according to claim 1, wherein the output control means generates index data for displaying a list of identification information of the content data extracted by the data extraction means, and supplies the index data to the output device.   2. The output control unit according to claim 1, wherein when the content data extracted by the data extraction unit is sound source data, the output control unit generates index data for sequentially reproducing each characteristic portion and supplies the index data to an output device. The in-vehicle output device described in 1.   7. The in-vehicle apparatus according to claim 5, wherein the output control means gives the selected content data to the output device when content data selection information is input based on the index data output from the output device. Output device.   The in-vehicle output device according to any one of claims 1 to 7, wherein the vehicle scene setting means sets a vehicle scene including items of scenery, time, and weather around the host vehicle.   The data extraction means sets weighting for each item based on the vehicle scene and reflects the weighting on an attribute value associated with the content data to compare with the vehicle scene. The vehicle-mounted output device according to any one of Items 1 to 8.   The in-vehicle output device according to any one of claims 1 to 9, wherein the data extraction unit excludes and extracts content data reproduced within a predetermined time.   11. The content data extracting unit extracts the content data based on an instruction from a user or when autonomously detecting a change in the vehicle scene. The in-vehicle output device described in 1.   The purchase processing means for performing the purchase processing of the content data is further provided, wherein the data extraction means extracts unpurchased content data and performs the purchase processing based on an instruction from the user. The in-vehicle output device according to any one of 11.

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