JP2013200249A - Vehicle mounted system, vehicle mounted unit, information processing method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique which enables even a vehicle mounted unit not having sufficient memory capacity for storing whole data used for route guidance to use data to be used for the route guidance at appropriate timing.SOLUTION: A vehicle mounted system includes an information processing device and a vehicle mounted unit for providing route guidance. The information processing device includes a transmission unit which transmits first data that meets predefined criteria among data to be used for route guidance before route guidance is provided, and transmits second data that becomes an object to be used for route guidance among data except the first data from the data to be used for route guidance, when providing route guidance. The vehicle mounted unit includes a storage unit for storing the first data transmitted from the information processing device, and a route guidance unit for providing route guidance using the first data that is stored before providing route guidance and the second data transmitted when providing route guidance.

Description

  The present invention relates to an in-vehicle system, an in-vehicle device, an information processing method, and a program technology.

  These functions can be achieved by communicating with a communication center device having functions such as signal processing such as position information and moving speed, database maintenance of maps, addresses, facilities, etc., route search and voice guidance, etc. through a mobile phone etc. There is a mobile terminal device that exhibits (Patent Document 1).

JP 2001-200152 A

  In recent years, an in-vehicle device that uses a terminal such as a smartphone as a relay device to acquire data used for route guidance from a server has been developed. As a method for such an in-vehicle device to acquire data, before performing route guidance, a method for acquiring all data used for the route guidance in a lump and a method for acquiring data to be used when used for route guidance. And so on.

  However, such in-vehicle devices often do not have sufficient memory capacity to hold all data used for route guidance. For this reason, the in-vehicle device does not adopt a method of acquiring all data used for the route guidance in a lump before performing the route guidance, but adopts a method of acquiring data to be used when used for the route guidance. The

  However, in the method of acquiring the usage target data when used for route guidance, the usage target data may be acquired with a delay from the timing of using the usage target data due to the influence of the transfer time or the like. is there. In such a case, the in-vehicle device has a problem that the data to be used cannot be used at an appropriate timing.

  In one aspect, the present invention has been made in consideration of such points, and even in an in-vehicle device that does not have sufficient memory capacity to hold all data used for route guidance, Provide a technology for making data to be used in route guidance available at an appropriate timing.

  The present invention employs the following configuration in order to solve the above-described problems.

  That is, an in-vehicle system according to one aspect of the present invention receives an information processing device that transmits data used for route guidance, data transmitted from the information processing device, and performs route guidance using the received data. On-board machine to perform. The information processing apparatus transmits first data satisfying a predetermined criterion among data used for the route guidance to the onboard device before the route guidance is performed, and is used for the route guidance. When the in-vehicle device performs the route guidance, the second data that is the target of the route guidance among the data excluding the first data transmitted before the in-vehicle device performs the route guidance from the data to be routed. A transmission unit for transmission. In addition, the in-vehicle device has a holding unit that holds the first data transmitted from the information processing device before performing the route guidance, the first data that is held before performing the route guidance, A route guide unit that performs route guidance using the second data transmitted when performing route guidance.

  According to the above configuration, first data that satisfies a predetermined criterion among data used for route guidance is held in the vehicle-mounted device before route guidance is performed. Of the data obtained by removing the first data from the data used for route guidance, the second data that is the target of route guidance is transmitted to the in-vehicle device when route guidance is performed. And the vehicle equipment performs route guidance using the 1st data held before performing route guidance, and the 2nd data transmitted when using.

  Therefore, according to the above-described configuration, the first data that satisfies a predetermined standard is retained before route guidance, and the remaining data is transmitted when performing route guidance. Therefore, according to the above configuration, even in an in-vehicle device that does not have sufficient memory capacity to hold all data used for route guidance, the data to be used in the route guidance is used at an appropriate timing. It becomes possible.

  Further, as another form of the in-vehicle system according to the above aspect, the transmitting unit includes, among the data used for the route guidance, data having a high usage frequency indicating the frequency used for the route guidance. One data may be transmitted to the in-vehicle device.

  As another form of the in-vehicle system according to the above aspect, the transmitting unit uses, as the first data, data having high importance in the route guidance among data used for the route guidance as the in-vehicle You may send to the machine.

  As another form of the in-vehicle system according to the above aspect, the in-vehicle device can store a capacity of data that the holding unit can hold for the first data transmitted from the information processing apparatus before performing the route guidance. A notification unit for notifying the information processing device of a data holding capacity indicating the first data having a capacity not exceeding the data holding capacity notified from the in-vehicle device. May be transmitted to the in-vehicle device.

  As another form of the in-vehicle system according to the above aspect, the in-vehicle device can store a capacity of data that the holding unit can hold for the first data transmitted from the information processing apparatus before performing the route guidance. A notification unit for notifying the information processing device of a data holding capacity indicating, wherein the transmission unit of the information processing device includes, as the first data, out of the data used for the route guidance, in the route guidance. When there is a remainder in the remaining capacity obtained by removing the volume of the highly important data from the data holding capacity together with the data having high importance, the importance of the remaining capacity is determined from the data used for the route guidance. Of the data excluding high data, send frequently used data indicating the frequency used for the route guidance to the in-vehicle device before the route guidance is performed. Good.

  As another form of the in-vehicle system according to the above aspect, the information processing apparatus further includes a usage frequency acquisition unit that periodically acquires usage frequency information indicating a usage frequency of data used for the route guidance. The transmission unit periodically determines the first data to be transmitted before the route guidance is performed based on the usage frequency information that is periodically acquired, and the holding unit is periodically configured by the transmission unit. The first data held before performing the route guidance may be updated based on the first data determined and transmitted.

  As another form of the in-vehicle system according to the above aspect, an information processing method for realizing each of the above configurations, a program, or a computer or other device that records such a program may be used. It may also be a storage medium readable by a machine or the like. Here, the computer-readable recording medium is a medium that stores information such as programs by electrical, magnetic, optical, mechanical, or chemical action.

  For example, as another form of the in-vehicle system according to the above aspect, the in-vehicle device according to one aspect of the present invention receives data used for route guidance transmitted from the information processing apparatus, and uses the received data. The route guidance is performed. And the said vehicle equipment is the holding | maintenance part holding the 1st data which satisfy | fills predetermined conditions among the data utilized for the said route guidance transmitted from the said information processing apparatus, before performing the said route guidance, Of the first data held before performing the route guidance and the data obtained by removing the first data transmitted before performing the route guidance from the data used for the route guidance, use of the route guidance And a route guidance unit that performs the route guidance using the second data transmitted from the information processing apparatus when performing the route guidance.

  Further, for example, as another form of the in-vehicle system according to the above aspect, an information processing method according to an aspect of the present invention includes an information processing device that transmits data used for route guidance, and a transmission from the information processing device. Is executed in an in-vehicle system including an in-vehicle device that performs route guidance using the received data, and the information processing device uses a predetermined standard among data used for the route guidance. Transmitting the first data to be satisfied to the in-vehicle device before the route guidance is performed; and holding the first data transmitted from the information processing device before the in-vehicle device performs the route guidance. The information processing apparatus includes: the first information transmitted before the vehicle-mounted device performs the route guidance from the data used for the route guidance; Transmitting the second data to be used when the vehicle-mounted device performs route guidance, the vehicle-mounted device performs the route guidance, and the first data held before performing the route guidance. Performing route guidance using the second data transmitted at the time.

  Further, for example, as another form of the in-vehicle system according to the above aspect, the program according to an aspect of the present invention provides data used for the route guidance to an in-vehicle device that performs route guidance using the received data. The first data satisfying a predetermined standard among the data used for the route guidance is transmitted to the information processing apparatus to be transmitted, and is used for the route guidance before the route guidance is performed. When the in-vehicle device performs the route guidance on the second data that is the target of the route guidance among the data excluding the first data transmitted before the in-vehicle device performs the route guidance from the data to be routed And a step of transmitting to.

  According to the present invention, even in an in-vehicle device that does not have sufficient memory capacity to hold all data used for route guidance, the data to be used in the route guidance can be used at an appropriate timing. Technology can be provided.

FIG. 1 illustrates the configuration of an in-vehicle system according to an embodiment. FIG. 2 illustrates the configuration of the in-vehicle device and the information processing device included in the in-vehicle system according to the embodiment. FIG. 3 illustrates functional configurations of the in-vehicle device and the information processing apparatus included in the in-vehicle system according to the embodiment. FIG. 4 illustrates an audio list management table held by the information processing apparatus according to the embodiment. FIG. 5 illustrates an audio list management table held by the in-vehicle device according to the embodiment. FIG. 6 shows an example of the processing procedure of the in-vehicle system according to the embodiment. FIG. 7 shows an example in which the number of reproductions is counted in the audio list management table held by the in-vehicle device according to the embodiment. FIG. 8 shows an example in which the audio data that is the target of the first data is updated in the audio list management table held by the information processing apparatus according to the embodiment. FIG. 9 shows an example in which the audio data that is the target of the first data is updated in the audio list management table held by the vehicle-mounted device according to the embodiment.

  Hereinafter, an embodiment according to an aspect of the present invention (hereinafter, also referred to as “this embodiment”) will be described with reference to the drawings. However, the present embodiment described below is merely an example of the present invention in all points, and is not intended to limit the scope thereof. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention. That is, in implementing the present invention, a specific configuration may be appropriately adopted according to the embodiment.

  Although data appearing in the present embodiment is described in a natural language, more specifically, it is specified by a pseudo language, a command, a parameter, a machine language, or the like that can be recognized by a computer.

§1 In-vehicle system FIG. 1 illustrates the configuration of the in-vehicle system 1 according to the present embodiment. The in-vehicle system 1 according to the present embodiment receives an information processing device 3 that transmits data used for route guidance and data transmitted from the information processing device 3, and performs route guidance using the received data. Vehicle-mounted device 2.

  The in-vehicle device 2 is a device attached to the automobile, and performs route guidance using data received from the information processing device 3 while the automobile is running. In the present embodiment, the in-vehicle device 2 receives audio data and image data used for route guidance from the information processing device 3.

  The voice data is data used for performing route guidance by voice. The file format of the audio data is not particularly limited, and is appropriately selected according to the embodiment. The voice data according to the present embodiment corresponds to “data used for route guidance” of the present invention. However, the “data used for route guidance” of the present invention is not limited to the voice data. The “data used for route guidance” of the present invention may be image data, or may be appropriately selected according to each embodiment. The image data is data used for displaying a route, a map, a vehicle position, and the like on the display device of the in-vehicle device 2 in route guidance. The in-vehicle device 2 performs route guidance using these data.

  In the present embodiment, when voice data grouped one by one as an utterance unit is referred to separately, the voice data grouped one by one is referred to as a “voice file”. When there is no need to distinguish and call out audio files, one or more audio files are collectively referred to as “audio data”. However, the audio data may not be distinguished as an audio file as described above, and may be appropriately prepared according to the embodiment.

  The in-vehicle device 2 receives an operation from the user. Then, the in-vehicle device 2 transmits data (operation data) indicating the accepted operation to the information processing device 3. The information processing device 3 receives the operation data from the in-vehicle device 2 and executes processing related to the operation data. That is, the in-vehicle device 2 according to the present embodiment plays a role of a user interface of the information processing device 3.

  The information processing device 3 is a device that controls route guidance performed by the in-vehicle device 2. The information processing apparatus 3 selects an audio file to be reproduced in route guidance. Then, as will be described later, the in-vehicle device 2 reproduces voice data related to route guidance in accordance with a request (instruction) from the information processing device 3.

The information processing apparatus 3 is, for example, a mobile phone such as a smartphone, a PC (Personal Computer)
) Etc. The information processing apparatus 3 may hold data used for route guidance by itself. Further, the information processing device 3 may function as a relay device, receive data used for route guidance from another device (for example, a server), and transfer the received data to the in-vehicle device 2. In the present embodiment, a case where the information processing apparatus 3 holds data used for route guidance by itself is illustrated.

  The information processing apparatus 3 transmits the first voice data that satisfies a predetermined criterion among the voice data used for the route guidance to the in-vehicle device 2 before the route guidance is performed. The in-vehicle device 2 holds the first voice data received from the information processing device 3 before performing route guidance. Then, the information processing device 3 uses the second voice that is the target of the route guidance, out of the voice data excluding the first voice data transmitted before the route guidance is performed from the voice data used for the route guidance. Data is transmitted when the in-vehicle device 2 performs route guidance. The in-vehicle device 2 performs the route guidance using the first voice data received and held before the route guidance and the second voice data transmitted when the route guidance is performed.

  As described above, the in-vehicle system 1 according to the present embodiment includes the first voice data to be held in the in-vehicle device 2 before performing route guidance, and the in-vehicle device in performing the route guidance. 2 and the second audio data to be transmitted to 2. In other words, the in-vehicle system 1 according to the present embodiment considers that the in-vehicle device 2 does not have sufficient memory capacity to hold all the audio data used for route guidance, and all the voices used for route guidance. The in-vehicle device 2 preferentially holds the first audio data that satisfies a predetermined standard, not the data.

  Thus, in the in-vehicle system 1, when the second voice data is used for route guidance, the second voice data is transmitted from the information processing device 3 to the in-vehicle device 2, but the first voice data is routed. When it is used, the transmission of the first audio data can be omitted. Therefore, in the in-vehicle system 1, the first audio data can be prevented from being affected by the transfer time and the like, and thus can be used at an appropriate timing. Therefore, the in-vehicle system 1 uses the voice data used for route guidance at an appropriate timing even in the in-vehicle device 2 that does not have sufficient memory capacity to hold all the voice data used for route guidance. It becomes possible to do.

  The first audio data corresponds to “first data” of the present invention. The second audio data corresponds to “second data” of the present invention. However, both “first data” and “second data” are not limited to audio data, and are appropriately selected according to the embodiment.

[Configuration example]
FIG. 2 illustrates the configuration of the in-vehicle device 2 and the information processing device 3 included in the in-vehicle system 1 according to the present embodiment.

The in-vehicle device 2 includes a control unit 200, a ROM (Read Only Memory) 201, a RAM (Random Access Memory) 202, a communication unit 203, an audio interface 204, a power amplifier 205, a speaker 206, a video interface 207, a video decoder 208, and A display / operation panel 209 is provided. In FIG. 2, the audio interface is represented as “AUDIO IF”, the power amplifier as “Power Amp”, the video interface as “VIDEO IF”, and the video decoder as “VIDEO decoder”.

The control unit 200 receives a signal from each part of the in-vehicle device 2 or a connected external device, or an operation instruction signal from each operation unit based on a user operation, and the in-vehicle device 2 based on those signals.
The overall control of each part or external device. The control unit 200 includes, for example, one or a plurality of microcomputers (microcomputers) and peripheral circuits (ROM 201, RAM 202, interface circuits, etc.) used for processing of the microcomputers, and operates according to a program stored in the ROM 201 or the like. .

  The ROM 201 is a memory that stores various data and control programs, and is a rewritable flash memory, for example. The ROM 201 is controlled by a control signal from the control unit 200 and outputs target data to the RAM 202 or the like. In the present embodiment, the first sound data is stored in the ROM 201. When the first audio data is stored, the ROM 201 is, for example, a flash memory (EEPROM (Electrically Erasable Programmable Read-Only Memory)).

The communication unit 203 is a module for the in-vehicle device 2 to communicate with the information processing device 3. The communication unit 203 is appropriately selected depending on the type of communication performed between the in-vehicle device 2 and the information processing device 3. For example, the communication unit 203 is a USB (Universal Serial Bus) interface, a Wi-Fi (registered trademark) (wireless fidelity) module, a Bluetooth (registered trademark) module, or the like.

  The in-vehicle device 2 aurally performs route guidance by the audio interface 204, the power amplifier 205, and the speaker 206. The audio interface 204 and the power amplifier 205 are modules for outputting sound from the speaker 206.

  Audio data held in the RAM 202 or the like is input to the audio interface 204. The audio interface 204 is controlled by a control signal from the control unit 200 and outputs the input audio data to the power amplifier 205.

  The power amplifier 205 is controlled by the control signal of the control unit 200, adjusts the volume and sound with respect to the signal related to the input sound data, and outputs the adjusted sound signal to the speaker 206. The speaker 206 outputs a signal related to the audio data input by the power amplifier 205 as audio.

  The in-vehicle device 2 visually provides route guidance using the video interface 207, the video decoder 208, and the display / operation panel 209. The video interface 207 and the video decoder 208 are modules for displaying an image on the display / operation panel 209.

  Image data held in the RAM 202 or the like is input to the video interface 207. The video interface 207 is controlled by a control signal from the control unit 200 and outputs the input image data to the video decoder 208.

  The video decoder 208 is controlled by the control signal of the control unit 200 and is input from the control unit 200 in order to display the signal related to the image data input from the video interface 207 and the image data on the display / operation panel 209. Processing such as image composition is performed based on the display image signal, and the display / operation panel 209 is driven based on the image signal subjected to the processing.

The display / operation panel 209 displays an image based on the image signal input from the video decoder 208. The display / operation panel 209 includes, for example, a liquid crystal panel such as a liquid crystal display, an organic EL (Electro Luminescence) display, a plasma display, a cold cathode flat panel display, a backlight that illuminates the liquid crystal panel from the back, a resistance film type, And a touch panel such as a capacitance method. The touch panel outputs operation states of various operations by the user to the in-vehicle device 2 to the control unit 200. Note that the control unit 200 outputs operation data related to the operation state to the information processing device 3 via the communication unit 205.

  The information processing apparatus 3 includes a control unit 300, a ROM 301, a RAM 302, a communication unit 303, an audio interface 304, a power amplifier 305, a speaker 306, a video interface 307, a video decoder 308, a display / operation panel 309, and a GPS (Global Positioning System). ) An information receiving unit 310 is provided.

  The control unit 300, ROM 301, RAM 302, communication unit 303, audio interface 304, power amplifier 305, speaker 306, video interface 307, video decoder 308, and display / operation panel 309 are the control unit 200, ROM 201, RAM 202, respectively. The communication unit 203, the audio interface 204, the power amplifier 205, the speaker 206, the video interface 207, the video decoder 208, and the display / operation panel 209 can be described in the same manner. Therefore, the description is omitted.

  Note that the control unit 300 operates according to a program stored in a peripheral circuit such as the ROM 301 and controls each unit of the information processing device 3 and the in-vehicle device 2, thereby realizing a route guidance function of the in-vehicle device 2. For example, the control unit 300 selects an audio file, an image file, or the like to be reproduced in the route guidance based on data obtained from a GPS information receiving unit 310, the vehicle-mounted device 2, and the like described later. Then, the control unit 300 causes the in-vehicle device 2 to reproduce the selected audio file, image file, and the like. Thereby, the control part 300 implement | achieves the route guidance function of the vehicle equipment 2. FIG.

  For example, the control unit 300 causes the display / operation panel 209 of the in-vehicle device 2 to display an image showing the vehicle position and the route to the destination on the map. In addition, the control unit 300 causes the speaker 206 of the in-vehicle device 2 to output a voice related to a traveling direction guidance such as a right or left turn at an intersection or the like. In addition, the control unit 300 obtains traffic information from a traffic information communication system (VICS (registered trademark)) information receiving unit (not shown) and own vehicle position information from the GPS information receiving unit 310 to display / operate the in-vehicle device 2. Display on the panel 209. Thus, the control unit 300 performs route guidance (navigation) to the destination.

  The GPS information receiving unit 310 detects the vehicle position based on the GPS signal from the GPS satellite, and outputs the detected current location information to the control unit 300. The GPS information receiving unit 310 includes a GPS signal receiving circuit that receives a GPS signal, and a calculation unit that calculates the vehicle position based on the received GPS signal.

  In addition, regarding the specific hardware configurations of the vehicle-mounted device 2 and the information processing device 3, the omission, replacement, and addition of components may be appropriately performed according to the embodiment. For example, the in-vehicle device 2 and the information processing device 3 may include a communication unit for connecting to a network such as the Internet. In this case, the in-vehicle device 2 and the information processing device 3 can acquire various information and functions (programs) via the network.

[Function configuration example]
FIG. 3 illustrates the functional configuration of the in-vehicle device 2 and the information processing device 3 included in the in-vehicle system 1 according to the present embodiment. The in-vehicle device 2 includes a notification unit 20, a holding unit 21, and a route guide unit 22. The notification unit 20, the holding unit 21, and the route guide unit 22 are realized by the control unit 200 interpreting and executing various programs developed in the RAM 202 and the like, and controlling each component. The information processing apparatus 3 includes a transmission unit 30 and a usage frequency acquisition unit 31. The transmission unit 30 and the usage frequency acquisition unit 31 are realized by the control unit 300 interpreting and executing various programs developed in the RAM 302 and the like to control each component.

  The transmission unit 30 of the information processing device 3 transmits the first voice data satisfying a predetermined standard among the voice data used for the route guidance to the in-vehicle device 2 before the route guidance is performed. In addition, the transmission unit 30 is the voice data used for the route guidance, out of the voice data excluding the first voice data transmitted before the vehicle-mounted device 2 performs the route guidance from the voice data used for the route guidance. 2 Audio data is transmitted when the in-vehicle device performs route guidance.

  The predetermined standard is a standard for selecting the first voice data to be held in the in-vehicle device 2 before performing the route guidance from the voice data used for the route guidance, and is appropriately selected according to the embodiment. Good.

  As an example of the predetermined standard, the transmission unit 30 transmits, to the in-vehicle device 2 as first voice data, frequently used data indicating the frequency used for route guidance among voice data used for route guidance. May be.

  Here, the use frequency is indicated by, for example, the number of times the target data is used within a predetermined period. Further, the transmission unit 30 may determine whether or not the usage frequency is high depending on whether or not the usage frequency exceeds a predetermined threshold. In addition, the transmission unit 30 selects the audio data as the first audio data in order of frequency of use, and the data size (data capacity) of the selected first audio data exceeds the predetermined data size. By repeating the selection, audio data (first audio data) that is frequently used may be acquired.

  Thereby, since frequently used data is prioritized and held in the vehicle-mounted device 2, the probability that the second audio data is transmitted from the information processing device 3 to the vehicle-mounted device 2 can be reduced. Therefore, the in-vehicle system 1 can use the voice data used for the route guidance at an appropriate timing even if the in-vehicle device 2 does not have sufficient memory capacity to hold all the voice data used for the route guidance. Probability can be increased.

  Moreover, as an example of the predetermined standard, the transmission unit 30 may transmit, to the in-vehicle device 2, data having high importance in route guidance among voice data used for route guidance as first voice data. .

  Here, the importance level is an index indicating the importance of the voice data in the route guidance. The importance may be appropriately set according to the embodiment, and is set in consideration of, for example, a usage scene. As a specific example, audio data that should not be delayed in reproduction may be set to a higher importance level, and audio data that may be delayed in reproduction may be set to a lower importance level.

  Further, the transmission unit 30 may determine whether or not the importance is high depending on whether or not the importance exceeds a predetermined threshold. Further, the transmission unit 30 selects the audio data as the first audio data in descending order of importance, and until the total data size (data capacity) of the selected first audio data exceeds a predetermined data size. By repeating the selection, voice data with high importance (first voice data) may be acquired.

  As a result, the voice data with high importance is prioritized and held in the vehicle-mounted device 2, so that the voice data from the information processing device 3 to the vehicle-mounted device 2 when using the voice data with high importance for route guidance is stored. The probability that transmission is performed can be reduced. Therefore, the in-vehicle system 1 has a probability that voice data with high importance can be used at an appropriate timing even if the in-vehicle device 2 does not have sufficient memory capacity to hold all voice data used for route guidance. Can be increased.

Here, the transmission unit 30 stores the voice list management table 40 in the ROM in order to grasp which voice data of the voice data used for route guidance is transmitted as the first voice data.
Hold at 301 or the like.

  FIG. 4 illustrates the voice list management table 40 held by the information processing apparatus 3 according to the present embodiment. The voice list management table 40 manages attributes of each voice file included in voice data used for route guidance in the information processing apparatus 3. One record of the voice list management table 40 indicates the attribute of one voice file used for route guidance.

  In the present embodiment, the voice list management table 40 shows a list of voice files used for route guidance. The voice list management table 40 includes an ID field, a transmission flag field, a size field, and a data field.

  In the ID field, an identifier (ID) for identifying the audio file is stored. By using the ID, the audio file is identified. The information processing apparatus 3 to be described later specifies an audio file to be reproduced on the in-vehicle device 2 by specifying the ID.

  The transmission flag field stores information indicating whether or not the audio file is transmitted to the in-vehicle device 2 as the first audio data. In FIG. 4, “◯” indicates that the first audio data is transmitted to the in-vehicle device 2. On the other hand, “×” indicates that the first audio data is not transmitted to the in-vehicle device 2. That is, the voice list management table 40 in FIG. 4 indicates that the voice files with IDs 1 to 4 have been transmitted to the in-vehicle device 2 before performing route guidance as the first voice data.

  Information indicating the data size (data capacity) of the audio file is stored in the size field. The unit of the data size is set as appropriate. In the data field, information indicating the audio content of the audio file is stored.

  Note that the audio list management table 40 is information indicating at least one of the usage frequency and the importance level because the transmission unit 30 specifies the audio file to be the first audio data based on at least one of the usage frequency and the importance level. May be provided.

  In addition, the voice list management table 40 may be assigned an ID based on at least one of the usage frequency and the importance level, without including a field for storing information indicating at least one of the usage frequency and the importance level. In this case, at least one of the usage frequency and the importance may be indicated. For example, the ID of the audio file may be assigned a small value of the ID in descending order of importance. In this example, the audio file with ID “1” is the most important data.

  The data format of the voice list management table 40 is not limited to the table format as shown in the present embodiment, and may be appropriately selected according to the embodiment. The same applies to the voice list management table 50 held in the vehicle-mounted device 2 to be described later.

  The holding unit 21 of the in-vehicle device 2 holds the first voice data transmitted from the transmission unit 30 of the information processing device 3 before performing route guidance. Here, the holding unit 21 holds the voice list management table 50 in the ROM 201 or the like in order to grasp the first voice data transmitted before performing the route guidance among the voice data used for the route guidance.

FIG. 5 illustrates an audio list management table 50 held by the in-vehicle device 2 according to the present embodiment. The voice list management table 50 manages the attributes of each voice file included in the voice data used for route guidance in the in-vehicle device 2. One record of the voice list management table 50 is used for route guidance, similarly to the record of the voice list management table 40.
Indicates the attribute of the audio file.

  In the present embodiment, the voice list management table 50 indicates a list of voice files used for route guidance, and includes an ID field, a reproduction count field, a size field, and a data field.

  Information stored in the ID field, the size field, and the data field is the same as that in the voice list management table 40. However, in the record of the audio file that has not been transmitted as the first audio data, “NULL” indicating that no data exists is stored in the data field of the audio list management table 50.

  The number of playbacks of the audio file is stored in the playback count field. For example, every time an audio file is reproduced, the control unit 200 increments a value stored in the reproduction number field in the record of the reproduced audio file. As a result, the in-vehicle device 2 counts the number of times each audio file has been reproduced based on the value stored in the number-of-plays field. Note that the voice list management table 50 in FIG. 5 is in a state before route guidance is performed, and “0” that is an initial value is stored in the number-of-plays field of each record. Note that the reproduction count field may be provided in the audio list management table 40 held by the information processing apparatus 3.

  The route guidance unit 22 of the in-vehicle device 2 performs route guidance using the first voice data held in the holding unit 21 before route guidance and the second voice data transmitted when performing route guidance. . That is, the first voice data is held before performing route guidance. Therefore, the route guidance unit 22 does not have to wait for transmission from the information processing device 3 for the first voice data. On the other hand, the second voice data is transmitted from the information processing device 3 to the in-vehicle device 2 in accordance with the use of route guidance. Therefore, the route guidance unit 22 waits for transmission from the information processing device 3 for the second voice data, and after receiving the second voice data, performs route guidance using the received second voice data. . Details will be described later.

  The notification unit 20 of the in-vehicle device 2 notifies the information processing device 3 of a data holding capacity indicating the amount of data that can be held by the holding unit 21 for the first voice data transmitted from the information processing device 3 before performing route guidance. To do. For example, when the data holding capacity of the holding unit 21 is not taken into consideration, the in-vehicle device 2 may not include the notification unit 20.

  In response to the notification from the notification unit 20, the transmission unit 30 of the information processing device 3 transmits the first sound data having a capacity not exceeding the data holding capacity notified from the in-vehicle device 2 to the in-vehicle device 2. Good. That is, the transmission unit 30 considers the storage capacity of the first voice data in the storage unit 21 indicated by the data storage capacity, and transmits the first voice from the voice data used for route guidance before performing the route guidance. Data may be selected.

  For example, the transmission unit 30 refers to the usage frequency or importance of each audio file, and selects the audio file as the first audio data in descending order of the usage frequency or importance. And the transmission part 30 may select and identify the audio | voice file handled as 1st audio | voice data by repeating the said selection until it exceeds the data holding capacity notified by the notification part 20. FIG.

In response to the notification from the notification unit 20, the transmission unit 30 of the information processing device 3 uses, as the first voice data, voice data that is highly important in route guidance, among voice data used for route guidance. If there is a remainder in the remaining capacity excluding the volume of the voice data with high importance from the data holding capacity, the data of the data obtained by removing the data with high importance from the data used for route guidance for the remaining capacity Of these, frequently used data indicating the frequency used for route guidance may be transmitted to the in-vehicle device 2 before route guidance is performed.

  For example, the transmission unit 30 identifies voice data that exceeds the importance level that exceeds a predetermined threshold among the voice data that is used for route guidance as voice data that has a high importance level. Then, when the total data capacity of the specified voice data with high importance is smaller than the data holding capacity notified by the notification unit 20, and there is a surplus in the capacity of the first voice data to be transmitted before the route guidance is performed, The transmission unit 30 may specify audio data as the first audio data for the remaining capacity (residual capacity) based on the frequency of use. For example, the transmission unit 30 selects audio data as the first audio data in order of frequency of use, and repeats the selection until the total data capacity of the selected first audio data exceeds the remaining capacity, Audio data that is frequently used may be acquired.

  In addition, for example, the transmission unit 30 has a capacity corresponding to a predetermined ratio of the data holding capacity notified by the notification unit 20 with the first voice data among the voice data used for route guidance based on the importance. Voice data to be performed may be specified. For example, the transmission unit 30 selects audio data as the first audio data in descending order of importance, and the total data capacity of the selected first audio data exceeds the capacity corresponding to a predetermined ratio of the data holding capacity. Audio data with high importance may be acquired by repeating the selection up to this point. Then, the transmission unit 30 may specify the audio data to be the first audio data for the remaining data retention capacity (remaining capacity) by using the same method as described above based on the usage frequency.

  In addition, the information processing apparatus 3 can know the capacity of data that can be held by the holding unit 21 by performing such notification of the data holding capacity. Therefore, in the in-vehicle system 1, it is possible to efficiently use the capacity of the holding unit 21.

  The usage frequency acquisition unit 31 of the information processing device 3 periodically acquires usage frequency information indicating the usage frequency of voice data used for route guidance. When the audio file that is the first audio data is not updated using the usage frequency information, the information processing apparatus 3 may not include the usage frequency acquisition unit 31.

  A specific example of the usage frequency information is a value stored in the number-of-plays field of the audio list management table 50. The usage frequency acquisition unit 31 periodically acquires the usage frequency information by periodically accessing the voice list management table 50 held in the in-vehicle device 2.

  And the transmission part 30 may determine the 1st audio | voice data transmitted before route guidance is performed regularly based on the usage frequency information acquired regularly. And the holding | maintenance part 21 of the vehicle equipment 2 may update the 1st audio | voice data hold | maintained before performing route guidance based on the 1st audio | voice data regularly determined by the transmission part 30 and transmitted. .

  Thereby, it is possible to reflect a different usage state for each user in the usage frequency serving as a reference for selecting the first audio data. Therefore, when the first audio data is selected based on the use frequency, the first audio data suitable for each user can be selected.

§2 Operation example FIG. 6 illustrates a processing procedure of the in-vehicle system 1 according to the present embodiment. In FIG. 6, the step is abbreviated as “S”.

In the in-vehicle system 1 according to the present embodiment, connection processing is executed between the in-vehicle device 2 and the information processing device 3 before the in-vehicle device 2 performs route guidance. Specifically, the control unit 200 controls the communication unit 203, the control unit 300 controls the communication unit 303, and communication between the in-vehicle device 2 and the information processing device 3 is established. As a result, data can be exchanged between the in-vehicle device 2 and the information processing device 3.

  Further, in the in-vehicle system 1 according to the present embodiment, before the in-vehicle device 2 performs route guidance, the in-vehicle device 2 processes the first audio data satisfying a predetermined standard among the audio data used for route guidance. Obtained from device 3. The processing according to steps 100 to 103 is processing related to acquisition of the first audio data.

  In step 100, the control unit 300 of the information processing device 3 requests the vehicle unit 2 to confirm the memory capacity for the first audio data. The memory capacity for the first voice data inquired by the control unit 300 is a data holding capacity indicating the volume of data that can be held by the holding unit 21 for the first voice data transmitted from the information processing device 3 before route guidance is performed. It is. The data holding capacity is, for example, the memory capacity of the ROM 201 that can be used for holding voice data before performing route guidance.

  In step 101, as the processing of the notification unit 20 of the in-vehicle device 2, the control unit 200 returns the memory capacity for the first audio data inquired by the control unit 300 in response to the request from the information processing device 3 in step 100. To do. For example, the control unit 200 sets the data holding capacity indicating the capacity of data that can be held by the holding unit 21 for the first voice data transmitted from the information processing device 3 before the route guidance is performed, before the route guidance is performed. The memory capacity of the ROM 201 that can be allocated for data retention is returned to the information processing apparatus 3.

  The control unit 200 may appropriately determine the memory capacity of the ROM 201 that can be allocated to holding voice data before performing route guidance. For example, the control unit 200 takes into consideration the memory capacity of the ROM 201, the sum of the data sizes of voice data used for route guidance, and the like. The memory of the ROM 201 can be used for holding voice data before performing route guidance. Determine the capacity.

  In step 102, as processing of the transmission unit 30 of the information processing device 3, the control unit 300 identifies first audio data that satisfies a predetermined criterion among audio data used for route guidance. In the present embodiment, in step 101, the in-vehicle device 2 returns a data retention capacity to the information processing device 3. Therefore, as described above, the control unit 300 may transmit the first audio data having a capacity not exceeding the data holding capacity to the in-vehicle device 2.

  Further, as described above, the control unit 300 may use at least one of the usage frequency and the importance as the predetermined reference for specifying the audio data to be the first audio data. For example, the control unit 300 specifies the first audio data using at least one of the usage frequency and the importance as described above.

  For example, when using the use frequency as a predetermined reference, the control unit 300 may determine whether the use frequency is high by determining whether the use frequency exceeds a predetermined threshold. In addition, the control unit 300 selects audio data as the first audio data in order of frequency of use, and the total data capacity of the selected first audio data exceeds the data holding capacity notified in step 101. By repeating this selection until the above, data with high use frequency (first audio data) may be acquired. The case where importance is used as a predetermined standard can be explained in the same manner.

Further, for example, the control unit 300 sets the remaining capacity obtained by excluding the volume of voice data having high importance from the data holding capacity together with the voice data having high importance in route guidance among the voice data used for route guidance. In the case where there is a remainder, for the remaining capacity, among the data obtained by removing the highly important data from the data used for route guidance, the frequently used data indicating the frequency used for route guidance is used as the first voice. It may be specified as data.

  For example, in the initial setting of the voice list management table 40, it is assumed that small values of IDs are assigned in the order of high usage frequency. Further, it is assumed that the data holding capacity notified in step 101 is 8500. The control unit 300 uses the use frequency as a predetermined reference. In this case, for example, the control unit 300 sequentially selects an audio file from the ID “1” as the first audio data, and the ID “4” in which the total data capacity of the selected first audio data is in front of more than 8500. Repeat until “.” Accordingly, as illustrated in FIG. 4, the control unit 300 identifies the audio files having IDs “1” to “4” as the first audio data.

  In step 103, the control unit 300 transmits the first audio data specified in step 102 to the in-vehicle device 2 as a process of the transmission unit 30 of the information processing device 3. Further, the control unit 300 transmits a voice list management table in which a list of voice data used for route guidance is described together with the first voice data.

  Note that the voice list management table 50 held in the in-vehicle device 2 may be created by the control unit 300 from the voice list management table 40 of the information processing apparatus 3. In this case, the control unit 300 transmits the created voice list management table 50 to the in-vehicle device 2.

  In addition, the control unit 300 of the in-vehicle device 2 may create the audio list management table 50 held by the in-vehicle device 2 by referring to the audio list management table 40. In this case, the control unit 300 transmits the voice list management table 40 held by the information processing device 3 to the in-vehicle device 2.

  Through the processing so far (steps 100 to 103), in the in-vehicle system 1, the first voice data satisfying a predetermined standard is deployed in the in-vehicle device 2 before route guidance is performed. These processes may be executed as an initial process when the in-vehicle device 2 and the information processing device 3 are connected, for example.

  In this state, the in-vehicle device 2 of the in-vehicle system 1 according to the present embodiment starts route guidance. The route guidance is performed by the information processing device 3 controlling the in-vehicle device 2. In the route guidance, a map, a route, a vehicle position, and the like are displayed on the display / operation panel 209 of the in-vehicle device 2, and sound related to the traveling direction guidance is output from the speaker 206.

  The process of step 104 exemplifies the process in the case where the first voice data already transmitted in the route guidance is used. Moreover, the process of step 105 and step 106 illustrates the process in case audio | voice data other than 1st audio | voice data are used in the said route guidance. Hereinafter, these processes will be described using the voice list management table 40 of FIG.

  In step 104, the control unit 300 of the information processing device 3 specifies an audio file to be reproduced in the route guidance. Then, the control unit 300 requests the in-vehicle device 2 to reproduce the specified audio file.

  For example, it is assumed that an audio file with ID “1” is specified as an audio file used in route guidance executed by the in-vehicle device 2. At this time, the control unit 300 accesses the audio list management table 40 and refers to the value of the transmission flag field of the record of the corresponding audio file. Since “O” is stored in the transmission flag field of ID “1”, the control unit 300 determines that the audio file is already held in the vehicle-mounted device 2 and does not transmit the audio file. An instruction to reproduce the audio file (reproduction request) is transmitted to the in-vehicle device 2.

  In the in-vehicle device 2 that has received the reproduction request, as a process of the route guidance unit 22, the control unit 200 reproduces the audio file having the received ID “1”. Thereby, the sound of “Pawn” related to the sound file of ID “1” is output from the speaker 206.

  On the other hand, in step 105, the file to be reproduced in the route guidance is specified by the control unit 300 of the information processing device 3. Then, the control unit 200 transmits the specified audio file (second audio data) to the in-vehicle device 2.

  For example, it is assumed that an audio file with ID “5” is specified as an audio file used in route guidance executed by the in-vehicle device 2. At this time, the control unit 300 accesses the audio list management table 40 and refers to the value of the transmission flag field of the record of the corresponding audio file. Since “x” is stored in the transmission flag field of ID “5”, the control unit 300 determines that the audio file has not been transmitted to the in-vehicle device 2, and the audio file is designated as the second audio data. Send as.

  In step 106, the control unit 300 of the information processing apparatus 3 instructs (requests) the in-vehicle device 2 to reproduce the transmitted audio file. In the in-vehicle device 2 that has received the reproduction request, as a process of the route guidance unit 22, the control unit 200 reproduces the audio file having the received ID “5”. As a result, the voice “Looking rightward” related to the voice file with ID “5” is output from the speaker 206.

  In addition, the in-vehicle system 1 according to the present embodiment periodically acquires usage frequency information, measures the usage frequency of each voice file (voice data) used for route guidance, and holds the first voice to be held by the in-vehicle device 2. Data may be reviewed. As described above, in the present embodiment, the value stored in the number-of-plays field of the audio list management table 50 held in the in-vehicle device 2 is usage frequency information. The processing from step 107 to step 109 corresponds to the processing relating to the review of the first audio data. Processing related to the review of the first audio data will be described with reference to FIGS.

  Note that the in-vehicle system 1 according to the present embodiment acquires, for example, usage frequency information for each predetermined period, and reviews the first audio data held by the in-vehicle device 2. The predetermined period may be set by the user or may be set uniquely in the in-vehicle system 1.

  In step 107, as the processing of the transmission unit 30 of the information processing device 3, the control unit 300 reviews the voice data set as the first voice data among the voice data used for route guidance.

  Specifically, first, the control unit 300 refers to the number-of-plays field of the voice list management table 50 held in the in-vehicle device 2 as the process of the usage frequency acquisition unit 31, and plays the number of times of playing each voice file (usage frequency). Information).

Figure 7 shows an example in which views the audio list management table 50 Oite each audio file to the vehicle-mounted device 2 holds has been counted according to the present embodiment. It is assumed that, for example, a count result as shown in FIG. 7 is obtained as a result of counting the number of playback times of each audio file in the route guidance performed during a predetermined period.

From the voice list management table 50 of FIG. 7, it can be seen that the voice file with ID “3” set as the first voice data is not used more than the voice file with ID “6”. That is, the in-vehicle system 1 periodically measures the usage frequency of the first audio data in this way,
By resetting the audio data, the first audio data suitable for use for each user can be set.

  And the control part 300 resets the 1st audio | voice data as a process of the transmission part 30 based on the obtained use frequency information. For example, the control unit 300 selects an audio file in descending order of the number of times of reproduction (usage frequency), and repeats the selection until it exceeds the data holding capacity (8500) notified in the above step 101, so that the first audio Reset the data.

  FIG. 8 shows an example in which when the first audio data is reset as described above, the audio file that is the target of the first audio data is updated in the audio list management table 40 held by the information processing apparatus 3.

  As described above, in the audio list management table 50 of FIG. 7, the audio file with ID “3” set as the first audio data is not used more than the audio file with ID “6”. Therefore, FIG. 8 shows that the audio file with ID “3” is excluded from the first audio data and the audio file with ID “6” is newly set as the first audio data by the update. Yes.

  Through these processes, the control unit 300 reviews the voice data set as the first voice data among the voice data used for route guidance.

  In step 108, as processing of the transmission unit 30 of the information processing device 3, the control unit 300 transmits the reset first audio data to the in-vehicle device 2, and the first audio data and audio list management held by the in-vehicle device 2 are processed. The table 50 is updated.

  For example, the control unit 300 transmits an audio file related to a record in which “O” is stored in the transmission flag field of the audio list management table 40 illustrated in FIG. 8. Here, since the audio files with IDs “1”, “2”, and “4” have already been transmitted, the control unit 300 does not need to transmit these audio files.

  In step 109, as the processing of the holding unit 21 of the in-vehicle device 2, the control unit 200 updates the held first voice data and the voice list management table 50 based on the data transmitted from the information processing device 3.

  FIG. 9 shows an example in which the audio file that is the target of the first audio data is updated in the audio list management table 50 held by the in-vehicle device 2 according to the present embodiment. As illustrated in FIG. 9, the control unit 200 deletes the audio file with ID “3” and holds the audio file with ID “6” as the first audio data. Thereby, the control part 200 updates the 1st audio | voice data hold | maintained. Further, the control unit 200 updates the voice list management table 50 in accordance with the first voice data to be held. For example, the control unit 200 updates the voice list management table 50 by correcting the state shown in FIG. 7 to the state shown in FIG.

  Note that after the update, the control unit 200 or the control unit 300 may reset all the values in the number-of-plays field of the audio list management table 50 held in the in-vehicle device 2. Thereby, the number of reproductions (usage frequency) may be counted again from the beginning.

§3 Modifications The embodiment of the present invention has been described in detail above. However, the above description is merely an example of the present invention in all respects and is not intended to limit the scope thereof. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention.

  For example, in the description of the above operation example, the description of the processing for the image data is omitted, but the image data may be handled in the same manner as the audio data. Further, the image data may be handled so that part of the data is not transmitted to the vehicle-mounted device 2 but is transmitted when the image data is used before the route guidance is performed.

DESCRIPTION OF SYMBOLS 1 ... In-vehicle system, 2 ... In-vehicle machine, 3 ... Information processing apparatus,
20 ... communication part, 21 ... holding part, 22 ... route guidance part,
30 ... Transmitter, 31 ... Usage frequency acquisition unit,
40 ... Voice list management table (of information processing apparatus) 50 ... Voice list management table of (on-board unit) 200 ... Control unit, 201 ... ROM, 202 ... RAM, 203 ... Communication unit,
204 ... Audio interface, 205 ... Power amplifier, 206 ... Speaker,
207 ... Video interface, 208 ... Video decoder,
209 ... Display / operation panel 300 ... Control unit, 301 ... ROM, 302 ... RAM, 303 ... Communication unit,
304 ... Audio interface, 305 ... Power amplifier, 306 ... Speaker,
307: Video interface, 308: Video decoder,
309 ... Display / operation panel, 310 ... GPS information receiver

Claims (9)

An information processing device for transmitting data used for route guidance;
An in-vehicle device that receives data transmitted from the information processing apparatus and performs route guidance using the received data;
In-vehicle system including
The information processing apparatus includes:
Among the data used for the route guidance, first data that satisfies a predetermined standard is transmitted to the in-vehicle device before the route guidance is performed,
Of the data excluding the first data transmitted before the in-vehicle device performs the route guidance from the data used for the route guidance, the in-vehicle device uses the second data that is the target of the route guidance. A transmission unit that transmits when performing route guidance,
The in-vehicle device is
A holding unit for holding the first data transmitted from the information processing apparatus before performing the route guidance;
A route guidance unit that performs route guidance using the first data held before performing the route guidance and the second data transmitted when performing the route guidance;
Comprising
In-vehicle system. The transmitting unit transmits, as the first data, high-usage data indicating the frequency used for the route guidance among the data used for the route guidance to the in-vehicle device,
The in-vehicle system according to claim 1. The transmitting unit transmits data having high importance in the route guidance among the data used for the route guidance as the first data to the in-vehicle device.
The in-vehicle system according to claim 1 or 2. The in-vehicle device notifies the information processing device of a data holding capacity indicating a capacity of data that can be held by the holding unit for the first data transmitted from the information processing device before performing the route guidance. Further comprising
The transmission unit of the information processing device transmits the first data to the in-vehicle device having a capacity not exceeding the data retention capacity notified from the in-vehicle device.
The in-vehicle system according to any one of claims 1 to 3. The in-vehicle device notifies the information processing device of a data holding capacity indicating a capacity of data that can be held by the holding unit for the first data transmitted from the information processing device before performing the route guidance. Further comprising
The transmission unit of the information processing apparatus includes, as the first data, data having high importance from the data holding capacity together with data having high importance in the route guidance among data used for the route guidance. When there is a remainder in the remaining capacity excluding the capacity, the frequency used for the route guidance of the data obtained by removing the highly important data from the data used for the route guidance for the remaining capacity is indicated. Send frequently used data to the in-vehicle device before the route guidance is performed.
The in-vehicle system according to claim 1. The information processing apparatus further includes a usage frequency acquisition unit that periodically acquires usage frequency information indicating a usage frequency of data used for the route guidance,
The transmission unit periodically defines the first data to be transmitted before the route guidance is performed based on the use frequency information acquired periodically.
The holding unit updates the first data held before performing the route guidance based on the first data periodically determined and transmitted by the transmission unit.
The in-vehicle system according to claim 2 or 5. In the in-vehicle device that receives data used for route guidance transmitted from the information processing device and performs the route guidance using the received data,
A holding unit that holds first data that satisfies a predetermined condition among the data used for the route guidance transmitted from the information processing apparatus before performing the route guidance;
Of the first data held before performing the route guidance and the data obtained by removing the first data transmitted before performing the route guidance from the data used for the route guidance, use of the route guidance A route guidance unit that performs the route guidance using the second data transmitted from the information processing device when performing the route guidance;
Comprising
In-vehicle device. Executed in an in-vehicle system including an information processing device that transmits data used for route guidance, and an in-vehicle device that receives data transmitted from the information processing device and performs route guidance using the received data. An information processing method,
The information processing apparatus transmits first data that satisfies a predetermined criterion among data used for the route guidance to the in-vehicle device before the route guidance is performed;
The vehicle-mounted device holds the first data transmitted from the information processing device before performing the route guidance;
Of the data excluding the first data transmitted before the vehicle-mounted device performs the route guidance from the data used for the route guidance by the information processing device, the second data that is the target of the route guidance Transmitting when the in-vehicle device performs route guidance; and
The vehicle-mounted device performs route guidance using the first data held before performing the route guidance and the second data transmitted when performing the route guidance;
Information processing method to execute. To an information processing device that transmits data used for route guidance to an in-vehicle device that performs route guidance using received data,
Transmitting the first data satisfying a predetermined standard among the data used for the route guidance to the in-vehicle device before the route guidance is performed;
Of the data excluding the first data transmitted before the in-vehicle device performs the route guidance from the data used for the route guidance, the in-vehicle device uses the second data that is the target of the route guidance. A step of sending when performing route guidance;
A program for running

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