JP5522653B2 - In-vehicle AV equipment - Google Patents

Description

  The present invention is mounted on a vehicle capable of manual driving traveling that is driven by a driver's driving operation and automatic driving traveling that is not performed by a passenger's driving operation, and relates to functions and images related to audio. The present invention relates to an in-vehicle AV apparatus having an AV function including a mechanism.

  From the viewpoint of safe vehicle travel, conventional in-vehicle AV (Audio and Visual) devices are based on moving image (video) playback (video playback function) and character input operations using character keys during driving operations by passengers. Operations such as functions (information input function related to audio or video) are restricted. Therefore, when the vehicle is traveling by the driving operation of the occupant, the occupant cannot see a moving image by playing a DVD or the like, and cannot input characters using the character keys.

  By the way, in recent years, vehicles capable of autonomous driving traveling without depending on the driving operation of the occupant have been proposed (see Patent Document 1 and Patent Document 2). In such a vehicle capable of autonomous driving, an in-vehicle AV device having an AV function including an audio function and a video function can be mounted.

JP-A-10-162285 JP 2006-318446 A

  In the AV device mounted on the vehicle capable of automatic driving, the passenger does not perform driving operation when the vehicle is in the state of automatic driving, so that the above-described regulation such as reproduction of moving images is not performed. It is possible. However, in a vehicle capable of both manual driving and automatic driving instead of a vehicle dedicated to automatic driving, it is not preferable during manual driving if the restriction of the moving image playback function is not performed uniformly.

  The present invention has been made in view of such circumstances, and provides an in-vehicle AV apparatus capable of operating with an appropriate AV function regardless of whether the vehicle is driven manually or automatically. It is.

The in-vehicle AV device according to the present invention is mounted on a vehicle capable of manual driving traveling that is driven by a driving operation of an occupant and automatic driving driving that is driven without depending on the driving operation of the occupant. A vehicle-mounted AV device having an AV function including a function and a function related to an image, wherein the vehicle restricts an operation of a predetermined function of the AV function during the manual driving, and the vehicle performs the automatic driving. In response to the determination by the automatic driving determination means for determining whether or not the vehicle is in a traveling state and the automatic driving determination means that the vehicle is in the automatic driving traveling state, the restriction on the operation of the predetermined function the vehicle is the automatic operation in a state in which the control means in release state enables operation of the AV functions, operation of the function of the audio in the manual drive running is made When it is determined by the automatic driving determination means that the state has been changed to a row state, an operation state saving control means for storing the operation state of the function relating to the audio in the storage means, and regulation during the manual driving traveling And a function return control means for returning to the operating state of the function related to the audio stored in the storage means when the automatic driving traveling is finished in a state where the function related to the video is being operated. Become.

With such a configuration, when the vehicle is in the state of manual driving, the operation for the predetermined function of the AV function is restricted. On the other hand, when the vehicle is in the state of automatic driving, the operation of the predetermined function is performed. The AV function can be operated in a state in which the restriction on is released. Then, when the operation related to the audio is performed, the manual operation traveling is switched to the automatic operation traveling, and when the operation related to the image is performed and the automatic operation traveling is returned to the manual operation traveling, the automatic operation traveling is performed. The operation of the function related to the audio can be continued from the operation state of the function related to the audio at the time of switching.

  In the in-vehicle AV apparatus according to the present invention, the control unit includes a menu display control unit that displays a menu of the AV function on a display unit, and displays the menu on the display unit without restricting the operation of the predetermined function. Can be configured to allow operation for a function selected from a selected menu.

  With such a configuration, during the automatic driving of the vehicle, the AV function menu is displayed on the display unit, and the function selected from the menu displayed on the display unit is not restricted without restricting the operation of the predetermined function. Since the operation becomes possible, the occupant can operate the AV function including the predetermined function to be restricted during the manual driving travel during the automatic driving travel.

  In the in-vehicle AV apparatus according to the present invention, the menu display control means determines that the vehicle is in the automatic driving traveling state while the function related to the audio is being performed during the manual driving traveling. The AV function menu can be displayed on the display unit when the automatic driving determination means is used.

  With such a configuration, when switching from the state of manual driving travel to the state of automatic driving traveling, the function related to the audio that was operating at the time of manual driving traveling is displayed from the AV function menu displayed on the display unit. By switching to the selected function, it is possible to operate the AV function including the predetermined function to be restricted during the manual driving.

  Furthermore, in the in-vehicle AV apparatus according to the present invention, first information output means for outputting first information when the automatic driving determination means determines that the vehicle is in the automatic driving traveling state. And a second information output means for outputting second information when the vehicle returns from the automatic driving state to the manual driving state.

  With such a configuration, the first information is output when the vehicle is switched from the state of the manual driving travel in which the operation for the predetermined function among the AV functions is restricted to the state of the automatic driving traveling. Based on the first information, the occupant knows that the vehicle is in an automatic driving state in which the AV function can be operated in a state where the restriction on the operation of the predetermined function is released. it can. In addition, since the second information is output when the vehicle returns from the state of the automatic driving traveling to the state of the manual driving traveling, the occupant can make the vehicle perform the predetermined function based on the second information. It is possible to know that the operation has been returned to the state of manual driving where the operation is restricted.

  According to the in-vehicle AV device according to the present invention, when the vehicle is in the manual driving state, the operation of the predetermined function among the AV functions is restricted, while the vehicle is in the automatic driving state. Since the AV function can be operated without restricting the operation of the predetermined function, the AV function can be operated in consideration of safety at the time of manual operation traveling, and the automatic operation traveling can be performed. Sometimes the operation of unrestricted AV functions becomes possible. Therefore, it is possible to perform an operation for an appropriate AV function regardless of whether the vehicle is driven manually or automatically.

It is a block diagram which shows the structure of the vehicle-mounted AV apparatus which concerns on embodiment of this invention. It is a flowchart which shows the procedure (the 1) of the process which the process unit in the vehicle-mounted AV apparatus shown in FIG. 1 performs. It is a flowchart which shows the procedure (the 2) of the process which the process unit in the vehicle-mounted AV apparatus shown in FIG. 1 performs. It is a figure which shows the example of the music reproduction screen displayed on a display unit. It is a figure which shows the example of the automatic driving | operation start screen displayed on a display unit. It is a figure which shows the example of the source menu screen displayed on a display unit. It is a figure which shows the example of a display of the broadcast image received with TV tuner. It is a figure which shows the example of the automatic driving | operation end screen displayed on a display unit.

  Hereinafter, an in-vehicle AV device according to the present invention will be described with reference to the drawings.

  An in-vehicle AV apparatus according to an embodiment of the present invention is configured as shown in FIG. The in-vehicle AV apparatus 100 shown in FIG. 1 includes a manual driving travel that is performed by a driver's driving operation (including a steering operation, an accelerator operation, and a brake operation), and an automatic driving that is performed without a passenger's driving operation. It is mounted on a vehicle that can travel.

  In FIG. 1, an in-vehicle AV apparatus 100 includes a processing unit 10 constituted by a computer unit (including a CPU), an automatic operation ECU 11, and a storage unit 12 that stores various types of information. The automatic operation ECU 11 determines the vehicle speed based on, for example, information from a detector for detecting a porcelain marker embedded in the road, detection signals from various sensors such as a vehicle speed sensor, a throttle opening sensor, and a steering angle sensor. Control related to automatic driving such as control and steering angle control is performed. The automatic operation ECU 11 outputs an automatic operation start signal to the processing unit 10 when automatic operation control starts and an automatic operation end signal when the automatic operation control ends.

  The in-vehicle AV apparatus 100 reproduces a DVD or a CD as an AV source that realizes a function related to audio (voice) and a function related to video (still image, moving image) (these functions are collectively referred to as an AV function hereinafter). DVD / CD player 13, TV tuner 14 for receiving digital television broadcasts, radio tuner 15 for receiving radio broadcasts, SD card slot 16 for mounting an SD card for storing audio information and video information, and audio information and video information And an audio output circuit 18, a speaker 19, an image output circuit 20, and a display unit 21. These AV source, audio output circuit 18 and image output circuit 20 are connected to the processing unit 10, and audio information from each AV source is sent to the audio output circuit 18 via the processing unit 10, and from each AV source. The video information (image information) is supplied to the image output circuit 20 via the processing unit 10. The audio output circuit 18 outputs an audio signal based on the audio information from the processing unit 10 to a speaker 19 provided in the passenger compartment, and the speaker 19 outputs audio such as music based on the audio signal. The image output circuit 20 outputs an image signal based on the video information from the processing unit 10 to a display unit 21 provided in the vehicle interior, and a still image or a moving image based on the image signal is displayed on the display unit 21. Is displayed.

  The processing unit 10 in the in-vehicle AV device 100 executes processing according to the procedure shown in FIGS. 2A and 2B.

  In FIG. 2A, when the in-vehicle AV device 100 is activated, the processing unit 10 determines whether or not the vehicle is in the state of automatic driving based on the output from the automatic driving ECU 11 (S10). In the state of manual driving where the vehicle is driven by the driving operation of the occupant, the processing unit 10 repeatedly executes the determination (S10).

  During manual driving of the vehicle, of the AV function, the operation of the video (moving image) output function, for example, the video (moving image) reproduced from the DVD set in the DVD / CD player 13 or the broadcast received by the TV tuner 14 Displaying images and the like on the display unit 21 is restricted (prohibited). In such a situation, the occupant can listen to the music. For example, when the HDD 17 is selected as the AV source, audio information relating to the music stored in the HDD 17 is supplied to the audio output circuit 18 via the processing unit 10, and based on the audio signal output from the audio output circuit 18. The sound of the music is output from the speaker 19 (operation of the first function). At this time, information related to the music stored in the HDD 17 in association with the audio information is supplied to the image output circuit 20 via the processing unit 10, and based on the image signal output from the image output circuit 20, for example, As shown in FIG. 3, a music playback screen including information on the music (album name, singer name, song name, etc.) is displayed on the display unit 21. In the example of the music playback screen shown in FIG. 3, the play time of the music is also displayed.

  For example, the vehicle is capable of autonomous driving in a dedicated lane for autonomous driving provided on an expressway. When the vehicle enters the dedicated lane for the automatic driving travel, the automatic driving ECU 11 starts the automatic driving control and outputs an automatic driving start signal. As described above, when the processing unit 10 that repeatedly executes the determination (S10) of whether or not the vehicle is in the state of automatic driving travels receives the automatic driving start signal from the automatic driving ECU 11, the vehicle is For example, as shown in FIG. 4, the display unit 21 prompts the automatic operation start message “Start automatic operation mode” and prompts the source selection as shown in FIG. An automatic driving start screen (first information) including the message “Select and enjoy your favorite source during automatic driving” is displayed (S11). As a result, the occupant can know that the vehicle has entered the state of automatic driving, and can know that the source in the in-vehicle AV device 100 can be reselected.

  After displaying the automatic operation start message on the display unit 21, the processing unit 10 determines whether the output state of the AV apparatus 100 is an audio output state of non-video display, for example, a broadcast video of the TV tuner 14. It is determined whether it is in a state of restricting (prohibiting) and outputting only sound or a state of restricting (prohibiting) video during DVD playback and outputting only sound (S12). When it is determined that the AV apparatus 100 is outputting the sound of the music based on the audio information as described above and is not the sound output state of the video non-display (NO in S12), the processing unit 10 In response to the operation of the menu button by the occupant, for example, as shown in FIG. 5, AV sources such as DVD / CD (DVD / CD player 13), TV tuner 14, SD card (SD card slot 16), HDD 17, etc. Is displayed on the display unit 21 (S13). This source menu is a menu of information sources corresponding to AV functions that can be selected in the AV apparatus 100. Then, the processing unit 10 determines whether or not an AV source selection operation has been performed in a state where the source menu is displayed on the display unit 21 (S14). When the occupant performs an AV source selection operation from the source menu displayed on the display unit 21, in response thereto (YES in S14), the processing unit 10 selects the audio source (radio, music) by selecting the AV source. It is determined whether or not a change has been made from video source (TV tuner, DVD, HDD video, etc.) to CD (HDD audio) (S15). If it is determined that the audio source has been changed to the video source (YES in S15), the processing unit 10 stores information representing the current operating state of the audio source in the storage unit 12 (S16). For example, when the TV tuner is selected from the source menu in a state where the audio of the music is being output based on the audio information stored in the HDD 17 as described above, the processing unit 10 changes from the audio source to the video source. The information indicating the operating state of the audio output function at that time (the operating state of the first function), specifically, reproduction of audio information corresponding to the audio output is performed. Information for specifying the location and information for specifying the storage location of the information related to the music associated with the audio information (for example, the address of the HDD 17) are stored in the storage unit 12.

  When the processing unit 10 stores the operating state of the audio source that has been operating so far, such as information indicating the operating state of the audio output function, in the storage unit 12 (S15 YES, S16), the processing unit 10 The AV source is activated (S17). For example, when the TV tuner 14 is selected as a video AV source, the processing unit 10 activates the TV tuner 14 and receives it at the TV tuner 14 without restricting the operation of the video (moving image) output function. The video information of the broadcast program is supplied to the image output circuit 20 and the audio information of the broadcast program is supplied to the audio output circuit 18. Thereby, based on the image signal from the image output circuit 20, a video (moving image) of a broadcast program (for example, a quiz program) is displayed on the display unit 21 as shown in FIG. At the same time, the sound of the broadcast program is output from the speaker 19 based on the audio signal from the audio output circuit 18. As a result, the occupant can view the TV broadcast program in the vehicle in the state of automatic driving.

  On the other hand, when the vehicle is switched to automatic driving (YES in S10), the state is an audio output state in which no video is displayed, such as a state where the broadcast video of the TV tuner 14 is restricted (prohibited) and only audio is output. (YES in S12), the processing unit 10 releases the restriction on the operation of the video output function, and outputs the video corresponding to the display unit 21 together with the audio output (S18). For example, when only the sound of the TV tuner 14 is output, a video (see FIG. 6) corresponding to the sound is displayed on the display unit 21.

  Further, when the source selected from the source menu (see FIG. 5) displayed on the display unit 21 is not a video source but an audio source (for example, CD, HDD audio, radio), etc. (NO in S15) ), The processing unit 10 activates the selected audio source. As a result, the occupant can listen to the audio based on the audio information from the audio source selected from the source menu (see FIG. 5) in the vehicle in the state of automatic driving.

  Thereafter, as shown in FIG. 2B, the processing unit 10 determines whether or not the vehicle has returned from the state of automatic driving to the state of manual driving (S20). In the state of the automatic driving travel, the processing unit 10 repeatedly executes this determination (S20).

  For example, an occupant of a vehicle that is automatically driving on the exclusive lane on a highway in a state where video is output together with the sound of the TV broadcast program (the second function is being operated) If the automatic driving ECU 11 finishes the automatic driving, the automatic driving ECU 11 ends the automatic driving control, and the vehicle shifts from the automatic driving driving state to the manual driving driving state. As a result, the vehicle continues to travel according to the driving operation of the occupant. At this time, an automatic driving end signal is output from the automatic driving ECU 11, and based on the automatic driving end signal, the processing unit 10 determines that the vehicle has returned from the state of automatic driving to the state of manual driving (YES in S20). ).

  Then, the processing unit 10 switches the display content of the display unit 21 from the TV program video (see FIG. 6) to, for example, an automatic operation end screen (second information) as shown in FIG. 7 (S21). On this automatic driving end screen, an automatic driving end message “This will end the automatic driving mode.” And an AV source switching message “automatic driving before the automatic driving” will be displayed. Is done. At this time, the output of the audio of the TV broadcast program from the speaker 19 is continued. Note that the audio output can also be stopped. With such an automatic driving end screen, the occupant confirms that the vehicle is in the state of manual driving, and the AV source in the in-vehicle AV device 100 is automatically driven from the TV tuner 14 that was operating during the automatic driving. It can be seen that the source selected during the previous manual driving can be switched.

  When the processing unit 10 displays the automatic operation end screen (see FIG. 7) on the display unit 21, the information indicating the operation state of the audio source at the time of the automatic operation start in the storage unit 12, that is, the audio output It is determined whether or not information (refer to the process of S15) representing the operation state of the function at the start of the automatic operation is stored (S22). And if the information is memorize | stored in the memory | storage part 12 (it is YES at S22), the processing unit 10 will be the operation | movement at the time of the said automatic driving | operation start of an audio output function based on the information memorize | stored in the memory | storage part 12. Then, the audio output is continued from the operation state (S23). Specifically, the processing unit 10 stores information specifying the reproduction position of audio information corresponding to the audio output at the time of starting the automatic operation stored in the storage unit 12 and information regarding the music associated with the audio information. Based on the information for specifying the storage location (for example, the address of the HDD 17), the playback of the music and the output state of the music playback screen (see FIG. 3) at the start of the automatic operation are restored. From this state, the sound output of the music based on the audio information stored in the HDD 17 and the display of the music playback screen based on the information related to the music are continued. Thus, the occupant can continuously listen to the music that was output during the manual driving before switching to the automatic driving without any operation.

  Thereafter, the processing unit 10 deletes the information indicating the operation state of the audio output function stored in the storage unit 12 at the time of the start of the automatic operation (S21), and thereafter the vehicle is detected based on the output from the automatic operation ECU 11. It is repeatedly determined whether or not an automatic driving state has been reached (S10 in FIG. 2A). On the other hand, if the storage unit 12 does not store information indicating the operation state of the audio output function at the start of the automatic operation (NO in S22), the processing unit 10 further performs audio output and video display. For example, whether the TV tuner 14 is selected and the video of the broadcast program is displayed on the display unit 21 and the audio of the broadcast program is being output from the speaker 19. Determine (S25). If audio output and video display are being performed (YES in S25), the processing unit 10 restricts (prohibits) the operation of the video output function (S26). As a result, for example, when the TV tuner 14 is operating, the video of the broadcast program is not displayed, and only the sound of the broadcast program is output.

  On the other hand, if the audio output and the video display are not performed (NO in S25), specifically, if the audio output based on the audio information from the selected AV source is performed, the processing unit 10 While the voice source, which is the currently selected AV source, is operated as it is, it is repeatedly determined whether or not the vehicle is in the state of automatic driving based on the output from the automatic driving ECU 11 (S10 in FIG. 2A). Transition to the state.

  When the vehicle changes from the manual driving state to the automatic driving state again (YES in S10), the processing unit 10 executes the above-described processing (S11 to S18 in FIG. 2A, S20 to S26 in FIG. 2B) again. .

  The processing unit 10 enters the manual operation travel (YES in S20 in FIG. 2B) and moves to the determination operation (S10) as to whether or not the automatic operation travel state is entered, the display unit 21 displays the above-mentioned. The automatic operation end screen (see FIG. 7) is switched to a predetermined screen.

  According to the in-vehicle AV device 100 as described above, when a vehicle is in a manually driven state, a predetermined function of the AV function, for example, an operation of a video (moving image) output function is restricted. When the vehicle is in an automatic driving state, various AV functions can be operated without restricting the operation of the video output function. The AV function can be operated at the same time, and an unrestricted AV function can be operated during automatic driving. Therefore, it is possible to perform an operation for an appropriate AV function regardless of whether the vehicle is driven manually or automatically.

  As described above, the in-vehicle AV device according to the present invention has an effect that an operation for an appropriate AV function can be performed regardless of whether the vehicle is driven manually or automatically. It is mounted on a vehicle capable of driving and automatic driving and is useful as an in-vehicle AV device having an AV function including an audio function and a video mechanism.

10 processing unit 11 automatic operation ECU
12 storage unit 13 DVD / CD player 14 TV tuner 15 radio tuner 16 SD slot 17 HDD
18 Audio output circuit 19 Speaker 20 Image output circuit 21 Display unit 100 In-vehicle AV apparatus

Claims (4)

An AV including a function related to audio and a function related to video, which is mounted on a vehicle capable of performing a manual driving travel that is performed by a driving operation of an occupant and an automatic driving traveling that is performed without a driving operation of the occupant. A vehicle-mounted AV device having a function,
Operation restriction control means for restricting the operation of a predetermined function among the AV functions during the manual driving;
Automatic driving determination means for determining whether or not the vehicle is in the state of automatic driving traveling;
Control means for enabling the operation of the AV function in a state where the restriction on the operation of the predetermined function is released in response to the determination by the automatic driving determination means that the vehicle is in the state of the automatic driving traveling; ,
The audio function when the automatic driving determination means determines that the vehicle is in the automatic driving state while the audio function is being operated during the manual driving. Operation state storage control means for storing the operation state of
A function of returning to the operation state of the function related to the audio stored in the storage means when the automatic driving travel is finished in a state where the function related to the image regulated during the manual driving travel is being performed. An in-vehicle AV apparatus having a return control means . The control means includes menu display control means for displaying a menu of the AV function on a display unit,
The in-vehicle AV device according to claim 1, which enables an operation for a function selected from a menu displayed on the display unit without restricting an operation for the predetermined function.   The menu display control means is determined when the automatic driving determination means determines that the vehicle is in the automatic driving running state while the function related to audio is being performed during the manual driving driving. The on-vehicle AV device according to claim 2, wherein a menu of the AV function is displayed on the display unit. First information output means for outputting first information when the automatic driving determination means determines that the vehicle has entered the state of automatic driving;
The in-vehicle AV according to any one of claims 1 to 3 , further comprising: second information output means for outputting second information when the vehicle returns from the automatic driving state to the manual driving state. apparatus.

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