JP2019018723A - Screen display device for vehicle - Google Patents

Abstract

To provide a screen display device for a vehicle, which enables a plurality of occupants of a plurality of seats in a vehicle cabin to view and listen to a video simultaneously without significantly increasing the number of display parts.SOLUTION: A screen display device for a vehicle is applied in a vehicle having at least two seats mounted on a vehicle body so as to be rotatable. The screen display device for the vehicle comprises: display monitors (21, 22), each of which is mounted on the vehicle body so as to be rotatable and has a first display part on one face and a second display part on the other face; detection means (35-1 to 35-6, 46-1 to 46-2) for detecting relative relation between respective directions of the at least two seats and a direction of each monitor; and a control device 60 that controls the first display part and the second display part according to the detected relative relation.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a screen display device applied to a vehicle having a plurality of seats rotatably attached to a vehicle body.

  2. Description of the Related Art Conventionally, there has been proposed a video display device including a display unit that displays a video for passengers seated on a moving body such as a train and a vehicle (automobile) (see, for example, Patent Document 1).

JP 2001-311902 A

  Currently, automatic driving technology that allows vehicles to travel autonomously without driving by the driver is being developed. A driver of a vehicle equipped with automatic driving technology does not need to perform driving operation during automatic driving, and can spend free time in the passenger compartment. Therefore, for example, during automatic driving, it is conceivable that an occupant of a front seat including a driver rotates the front seat toward the rear of the vehicle and views an image displayed on the display unit together with the occupant of the rear seat.

  However, since the conventional device in Patent Document 1 is a device that is applied to a conventional vehicle that does not have automatic driving technology, the driver does not view the video to perform the driving operation. Designed based on assumptions. Therefore, in the conventional apparatus, the display unit is disposed at a position where an image can be provided only to passengers in the second and subsequent rows (that is, the rear seats). As described above, the conventional apparatus is designed after recognizing the problem that the passengers in the first row including the driver's seat (that is, the front seat) and the passengers in the rear seat view the video at the same time. Not. Furthermore, regardless of whether or not the vehicle is equipped with automatic driving technology, the conventional apparatus has seats arranged in different rows (for example, the second row seat and the fourth row seat of the vehicle). Is also not aware of the problem that passengers may wish to view different videos at the same time.

  One of the objects of the present invention is to provide a vehicle screen display device that allows a passenger in a plurality of seats in a vehicle cabin to view images simultaneously without significantly increasing the number of display units.

As one aspect for solving the above-described problem, the vehicle screen display device of the present invention includes at least two seats (11, 12, 13, 14, 15, 15) that are rotatably attached to the vehicle body (10). 16) applied to a vehicle (1) comprising
The first display unit (43, 47) is provided between the at least two seats so as to be rotatable with respect to the vehicle body and displays a first video on one side, and the first side is provided on the other side. A display monitor (21, 22) comprising a second display unit (44, 48) for displaying a second video that is the same as or different from the video of
Detection means (35-1 to 35-6, 46-1 to 46-2, 60) for detecting the relative relationship between the orientation of each of the at least two sheets and the orientation of the monitor;
A control device (60) for controlling the first display unit and the second display unit according to the detected relative relationship;
Is provided.

  According to this structure, the passenger | crew of the several seat in a vehicle interior can view an image | video simultaneously. The control device controls each of the first display unit and the second display unit of the monitor according to the relative relationship between the direction of each of the at least two sheets and the direction of the monitor. Therefore, the occupant can easily control each of the first display unit and the second display unit without leaving the seat on which the occupant is seated, and can display images desired by the occupant on the first display unit and the second display unit. You can watch either.

  Further features related to the present invention will become apparent from the description of the present specification and the accompanying drawings. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

  In the above description, in order to help the understanding of the invention, the reference numerals used in the embodiments are attached to the configuration of the invention corresponding to the embodiments in parentheses, but each constituent element of the invention is represented by the reference numerals. It is not limited to the embodiments specified.

1 is a schematic configuration diagram of a vehicle (automobile) mounted with a vehicle screen display device according to an embodiment of the present invention. It is a figure explaining the structure of the seat | sheet and monitor shown in FIG. 1, and the figure which looked at the vehicle from the horizontal direction. It is a figure explaining the rotation angle of the monitor shown in FIG. It is a block diagram of the screen display apparatus for vehicles mounted in the vehicle shown in FIG. FIG. 2 is a perspective view inside a vehicle showing a situation in which a first monitor that is one of the monitors shown in FIG. 1 is viewed. It is a top view in the vehicle of the condition shown in FIG. It is a top view in the vehicle which showed the condition which views and listens to the 2nd monitor which is one of the monitors shown in FIG. It is a figure explaining the control using the distance sensor employ | adopted as the modification of the screen display apparatus for vehicles which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The accompanying drawings show specific embodiments in accordance with the principle of the present invention, but these are for the understanding of the present invention, and are never used to limit the interpretation of the present invention. is not.

(Overview of vehicle configuration)
In FIG. 1, the left is the front of the vehicle and the right is the rear of the vehicle. Hereinafter, the vehicle front-rear direction refers to the left-right direction on the paper surface of FIG. The vehicle width direction is a direction orthogonal to the vehicle front-rear direction and refers to the vertical direction on the paper surface of FIG.

  The vehicle 1 has an automatic driving control function. The automatic driving control in the present embodiment is a control for controlling the driving of the vehicle 1 and driving the vehicle to the destination without operating the driver (not shown) such as an accelerator pedal, a brake pedal, and a steering wheel by the driver. Say. Automatic driving control includes not only fully automatic driving but also conditional automatic driving (for example, automatic driving in a limited environment such as in a highway).

  The vehicle 1 is a six-seater vehicle. The vehicle body floor 10 of the vehicle 1 includes a first seat 11, a second seat 12, a third seat 13, a fourth seat 14, a fifth seat 15, and a sixth seat 16.

  The first seat 11 is disposed as the first row of seats in the forefront position in the vehicle front-rear direction and in the vicinity of the center in the vehicle width direction. The first seat 11 is a seat on which a driver of the vehicle 1 is seated. A driving operator (not shown) of the vehicle 1 including the steering wheel SW is disposed in front of the first seat 11.

  The 2nd sheet 12 and the 3rd sheet 13 are arranged as a sheet of the 2nd row in the position behind the 1st row. The second seat 12 and the third seat 13 are arranged at an interval in the vehicle width direction. That is, the second seat 12 is disposed on the left side with respect to the central portion of the vehicle 1 in the vehicle width direction, and the third seat 13 is disposed on the right side with respect to the central portion of the vehicle 1 in the vehicle width direction.

  The fourth seat 14 is arranged as a seat in the third row at a position behind the second row and near the center in the vehicle width direction.

  The fifth seat 15 and the sixth seat 16 are arranged as seats in the fourth row at the rear position in the third row (the rearmost position in the vehicle front-rear direction). The fifth seat 15 and the sixth seat 16 are arranged at an interval in the vehicle width direction. That is, the fifth seat 15 is disposed on the left side with respect to the central portion of the vehicle 1 in the vehicle width direction, and the sixth seat 16 is disposed on the right side with respect to the central portion of the vehicle 1 in the vehicle width direction.

  A first monitor 21 and a second monitor 22 are rotatably attached to a vehicle body roof 20 (see FIG. 2) of the vehicle 1. The first monitor 21 is located between the second row of seats (12, 13) and the fourth row of seats (15, 16) (that is, above the fourth seat 14), and It is arranged at the center in the width direction. The second monitor 22 is located between the seat (11) in the first row and the seat (14) in the third row (that is, above the seats (12, 13) in the second row). Is arranged at the center in the vehicle width direction.

(Specific configuration of seat and monitor)
Since the sheets 11 to 16 have the same configuration, the first sheet 11 will be described below, and a detailed description of the other sheets 12 to 16 will be omitted.

  As shown in FIG. 2, the first seat 11 includes a seat surface portion (sitting portion) 31, a seat back 32, and a headrest 33. The seat surface portion 31 is attached to the vehicle body floor 10 via the rotation shaft 34. The rotating shaft 34 is provided perpendicular to the vehicle body floor 10. Accordingly, the first seat 11 is configured to be able to rotate 360 ° about the rotation shaft 34 with respect to the vehicle body floor 10. In the present embodiment, the first sheet 11 is configured to rotate every predetermined angle (for example, 15 °). The first sheet 11 includes a lock mechanism (not shown). When the lock mechanism is operated, the first sheet 11 is configured to stop when it is rotated by a predetermined angle and locked at the stop position when the first sheet 11 is brought into the unlocked state.

  The rotation angle of the sheet will be described with reference to FIG. In the present specification, the rotation angle α of the seat is based on when the seat surface portion 31 of the seat faces the front of the vehicle (when the line of sight of the occupant seated on the seat surface portion 31 faces the front of the vehicle). (0 degree) is the angle when rotated in the counterclockwise direction. Therefore, when the rotation angle α = 0 °, the seat is facing the front of the vehicle. When the rotation angle α is 90 °, the seat is facing the left side of the vehicle. When the rotation angle α is 180 °, the seat is facing the rear of the vehicle. When the rotation angle α is 270 °, the seat is in the state facing the right side of the vehicle. For example, in the example illustrated in FIG. 2, the first sheet 11 is in a state where the rotation angle α = 0 °, and the second sheet 12 is in a state where the rotation angle α = 180 °.

  The seat portion 31 includes a seat angle detector 35-1 that detects the rotation angle α. The seat angle detection unit 35-1 is a sensor that detects a difference in rotation between the rotating first seat 11 and the non-rotating vehicle body floor 10. For example, the seat angle detection unit 35-1 is a magnetic sensor that detects a change in the lines of magnetic force from a magnet attached to the rotating seat surface portion 31. Hereinafter, the sheet angle detection units of the second sheet 12 to the sixth sheet 16 are denoted as 35-2 to 35-6, respectively.

  An operation panel 36 is disposed on the side surface portion 31 a of the seat surface portion 31. The operation panel 36 includes operation buttons for changing the rotation angles (β1 and β2 described later) of the first monitor 21 and the second monitor 22, and the channels and volume of the first monitor 21 and the second monitor 22, etc. It has an operation button for changing. The occupant can change the rotation angles of the monitors 21 and 22 by using the operation panel 36. The occupant can set (change) the channel and volume of each of the monitors 21 and 22 using the operation panel 36. Hereinafter, the operation panels 36 of the first sheet 11 to the sixth sheet 16 are denoted as 36-1 to 36-6, respectively.

  The headrest 33 is provided with a receiver 37 and an earphone (or headphone) 38. The receiver 37 receives audio information from either the first monitor 21 or the second monitor 22 in response to an instruction from a control device 60 (see FIG. 4) described later. The earphone 38 is connected to the receiver 37 and plays audio information received by the receiver 37.

  Each of these seats 11 to 16 has a state in which a seat back 32 is erected from the seat surface portion 31 so that an occupant can be seated, and a state in which the seat back 32 is folded with respect to the seat surface portion 31 and functions as a table. (See the fourth sheet 14 in FIG. 2).

  Next, the configuration of the monitor will be described. Since the monitors 21 and 22 have the same configuration, the first monitor 21 will be described below, and the detailed description of the second monitor 22 will be omitted.

  As shown in FIG. 2, the first monitor 21 includes a rod-shaped support member 41 and a display device 42. One end of the support member 41 is connected to the vehicle body roof 20 via a rotating shaft 45 and a slide rail 54 described later. The other end of the support member 41 supports the display device 42.

  The display device 42 is a flat type reversible monitor. The display device 42 includes a first display unit 43 on one surface side and a second display unit 44 on the other surface side. The first display unit 43 and the second display unit 44 can display either the same image or different images. Therefore, in this embodiment, a plurality of occupants facing each other across the first monitor 21 can view different videos (programs). For example, in the example of FIG. 2, an occupant sitting on the second seat 12 watches the video displayed on the first display unit 43, and an occupant sitting on the fifth seat 15 is on the second display unit 44. The displayed video can be viewed.

  The first monitor 21 is accommodated in the accommodating space 53 between the roof trim 51 and the roof outer plate 52 of the vehicle body roof 20. A slide rail 54 extending in the vehicle front-rear direction is provided inside the roof outer plate 52. The support member 41 is connected to the slide rail 54 via the rotation shaft 45. When the first monitor 21 is accommodated, the display device 42 is directed upward about the rotation shaft 45 so that the surfaces of the first display portion 43 and the second display portion 44 of the display device 42 are parallel to the vehicle body roof 20. Rotate (see dotted line in FIG. 2). Thereafter, the first monitor 21 is accommodated in the accommodation space 53 by moving the rotation shaft 45 of the support member 41 forward along the slide rail 54.

  As shown in FIG. 3, the display device 42 is configured to be able to rotate 360 ° around the support member 41 when viewed from above the vehicle. The display device 42 is rotated by a motor (first motor 21M shown in FIG. 4) not shown in FIG. 3 according to the setting of the operation panel 36. In the present embodiment, the display device 42 is configured to rotate at a predetermined angle (for example, 15 °) and to be locked at the stop position each time the display device 42 rotates by a predetermined angle.

  In this specification, the rotation angle β1 of the first monitor 21 refers to the rotation angle in the counterclockwise direction when the surface of the first display unit 43 faces the front of the vehicle as a reference (0 degree). An angle. Therefore, for example, when the rotation angle β1 = 0 °, the first display unit 43 is in the state of facing the front of the vehicle, and the second display unit 44 is in the state of facing the rear of the vehicle. When the rotation angle β1 = 90 °, the first display unit 43 is directed to the left side of the vehicle, and the second display unit 44 is directed to the right side of the vehicle. When β1 = 180 °, the second display unit 44 is in the state of facing the front of the vehicle, and the first display unit 43 is in the state of facing the rear of the vehicle. When β1 = 270 °, the second display unit 44 is in a state of facing the left side of the vehicle, and the first display unit 43 is in a state of facing the right side of the vehicle.

  The first monitor 21 includes a monitor angle detector 46-1 that detects the rotation angle β1. The monitor angle detection unit 46-1 is a sensor that detects a difference in rotation angle between the support member 41 and the display device 42 that rotates with respect to the support member 41. For example, the monitor angle detection unit 46-1 is a magnetic sensor similar to the sheet angle detection unit 35-1.

  The second monitor 22 has the same configuration as the first monitor 21. The second monitor 22 includes a first display unit 47 on one surface side of the display device, and a second display unit 48 on the other surface side of the display device. The display device of the second monitor 22 is rotated by a motor (not shown) (second motor 22M shown in FIG. 4) according to the setting of the operation panel 36. Hereinafter, the rotation angle β2 of the second monitor 22 refers to an angle when the first display unit 47 is rotated counterclockwise with reference to the time when the surface of the first display unit 47 faces the front of the vehicle (0 degree). . The second monitor 22 includes a monitor angle detector 46-2 that detects the rotation angle β2. The second monitor 22 can also be housed in a housing space (not shown) between the roof trim 51 and the roof outer plate 52.

(Configuration of control device)
As shown in FIG. 4, the screen display control device according to the present embodiment includes a control device 60. The control device 60 includes a microcomputer including a CPU 61, a RAM 62, a ROM 63, and an interface (I / F) 64. The CPU 61 implements the control described below by executing instructions (programs, routines) stored in the ROM 63.

  The control device 60 is connected to the sheet angle detection units 35-1 to 35-6 and the monitor angle detection units 46-1 to 46-2. The control device 60 receives information on the rotation angle α of the corresponding sheet from each of the sheet angle detection units 35-1 to 35-6. The control device 60 receives information about the rotation angle β1 from the monitor angle detection unit 46-1, and receives information about the rotation angle β2 from the monitor angle detection unit 46-2.

  Further, the control device 60 is connected to the first monitor 21, the first motor 21M, the second monitor 22, and the second motor 22M. The control device 60 controls the first monitor 21 and the second monitor 22 according to the rotation angle α of each of the sheets 11 to 16 and the rotation angle β1 of the first monitor 21 and the rotation angle β2 of the second monitor 22. To do. In addition, the control device 60 can control the first motor 21M and the second motor 22M based on the operation of the operation panel 36 regardless of the operation panel 36 of any sheet. Although not shown, the control device 60 is also connected to the respective receivers 37 of the first sheet 11 to the sixth sheet 16, and transmits instructions to the respective receivers 37. Yes.

(Content of control)
Next, a method for controlling the first monitor 21 will be described with reference to FIGS. 5 and 6.

  The objects that can be viewed on the first monitor 21 are passengers sitting on the second row of seats (second seat 12 and third seat 13) and the fourth row of seats (fifth seat 15 and sixth seat). A passenger sitting on the seat 16). More specifically, the fourth sheet 14 is folded, the rotation angles α of the second sheet 12 and the third sheet 13 are both set to 180 °, and the rotation angles α of the fifth sheet 15 and the sixth sheet 16 are set. Is set to 0 °, the occupant seated on the second row seat and the occupant seated on the fourth row seat can view the first monitor 21. Regarding the first monitor 21, one display unit is shared by two passengers. That is, for example, the video on the first display unit 43 is viewed by two passengers seated on the second seat 12 and the third seat 13, and the video on the second display unit 44 is displayed on the fifth seat 15 and the sixth seat. Watched by two occupants seated in 16. In order to facilitate understanding, FIG. 5 is exaggerated so that the front side is wide and the back side is narrow.

  The control device 60 includes a first variable for determining the orientation of each of the sheets 12, 13, 15 and 16, and a second variable for determining the orientation of the display units 43 and 44 of the first monitor 21. Based on this, the relative relationship between the respective orientations of the sheets 12, 13, 15 and 16 and the orientation of the first monitor 21 is detected. Specifically, the control device 60 determines which sheet based on the combination of the first variable of each of the sheets 12, 13, 15 and 16 and the second variable of each of the sheets 12, 13, 15 and 16. It is determined which occupant seated in the vehicle and which display unit are facing each other. Details of the first variable and the second variable will be described later. The control device 60 executes power ON / OFF processing of the display units 43 and 44 and channel switching processing of the display units 43 and 44 in accordance with the above-described relative relationship.

  Next, specific contents of the control will be described. The control device 60 manages the first variable for each of the sheets 12, 13, 15 and 16 in the instruction (program, routine) to be executed. Here, the first variable is a flag for determining the orientation of the sheet. The first variable is a state in which the occupant seated on the target seat faces the first monitor 21 (that is, the target seat is one of the first display unit 43 and the second display unit 44 of the first monitor 21). It is “1” when the video is set in a direction in which the video can be viewed. The first variable is “0” when the occupant seated on the target seat is not facing the first monitor 21.

  The ROM 63 stores in advance a first table that represents the relationship between the rotation angle α of each of the sheets 12, 13, 15, and 16 and the first variable. When the control device 60 receives the respective rotation angles α of the sheets 12, 13, 15 and 16, the control device 60 applies the respective rotation angles α to the first table to thereby determine the respective first angles of the sheets 12, 13, 15 and 16. Determine one variable. Table 1 below is an example of the first table.

  In Table 1, only the portions necessary for the following description (values every 90 ° of the rotation angle α) are shown, and many portions are omitted. In the first table, “1” is set to the first variable for the range of the rotation angle α in which the first monitor 21 can be viewed. For example, the passenger seated on the second seat 12 can view the first monitor 21 when the rotation angle α of the second seat 12 is 180 ° to 200 °. Therefore, for example, the value of the first variable for the second sheet 12 in the first table is set to “1” in the range of the rotation angle α = 180 ° to 200 °. For the other sheets 13, 15 and 16, “1” is set as the first variable for the range of the rotation angle α in which the first monitor 21 can be viewed.

  In the example of FIG. 6, the rotation angle α of the second sheet 12 and the third sheet 13 is 180 °, and the rotation angle α of the fifth sheet 15 and the sixth sheet 16 is 0 °. Therefore, the control device 60 sets the first variable of each of the second sheet 12, the third sheet 13, the fifth sheet 15, and the sixth sheet 16 to “1” by referring to the first table.

  The control device 60 manages the second variable for each of the sheets 12, 13, 15, and 16 in the instruction (program, routine) to be executed. Here, the second variable is a variable indicating which display unit of the first monitor 21 is directed to which sheet side. More specifically, the second variable is “1” when the first display unit 43 is facing the target sheet. The second variable is “2” when the second display unit 44 is facing the target sheet. The second variable is “0” when neither the first display unit 43 nor the second display unit 44 is directed toward the target sheet.

  The ROM 63 stores in advance a second table representing the relationship between the rotation angle β1 of the first monitor 21 and the second variables of the sheets 12, 13, 15 and 16. When the control device 60 receives the rotation angle β1 of the first monitor 21, the control device 60 applies the rotation angle β1 to the second table to determine the second variables of the sheets 12, 13, 15, and 16, respectively. Table 2 below is an example of the second table.

  In Table 2, only the portions necessary for the following description (values of 90 ° of the rotation angle β1) are shown, and many portions are omitted. In the second table, “1” is set as the second variable for the range of angles at which the first display unit 43 of the first monitor 21 faces the target sheet. For example, when the rotation angle β1 = 0 ° to 20 °, the first display unit 43 of the first monitor 21 faces the direction of the second seat 12, and the occupant of the second seat 12 views the first display unit 43. can do. Therefore, for example, the value of the second variable for the second sheet 12 in the second table is set to “1” in the range of the rotation angle β1 = 0 ° to 20 °.

  In the second table, “2” is set as the second variable for the range of angles at which the second display unit 44 of the first monitor 21 faces the target sheet. For example, when the rotation angle β1 = 180 ° to 200 °, the second display unit 44 of the first monitor 21 faces the direction of the second seat 12, and the occupant of the second seat 12 views the second display unit 44. can do. Therefore, for example, the value of the second variable for the second sheet 12 in the second table is set to “2” in the range of the rotation angle β1 = 180 ° to 200 °. For each of the sheets 13, 15, and 16, “1” is set as the second variable for the range of the rotation angle β 1 in which the first display unit 43 of the first monitor 21 faces the target sheet. “2” is set in the second variable for the range of the rotation angle β1 in which the second display unit 44 of the second display unit 44 faces the target sheet.

  In the example of FIG. 6, the rotation angle β1 = 0 °. The 1st display part 43 will be in the state which turned to the 2nd sheet 12 and the 3rd sheet | seat 13 side, and the 2nd display part 44 will be in the state which turned to the 5th sheet | seat 15 and the 6th sheet | seat 16 side. The control device 60 sets the second variable of each of the second sheet 12 and the third sheet 13 to “1” by referring to the second table, and sets the second variable of each of the fifth sheet 15 and the sixth sheet 16. Set 2 variables to "2".

  As described above, the control device 60 sets the first variable and the second variable for each of the sheets 12, 13, 15, and 16. The values of the first variable and the second variable in the example of FIG. 6 are as shown in Table 3 below.

  The control device 60 performs the power ON / OFF process of each of the display units 43 and 44 of the first monitor 21 and the first monitor 21 according to the combination of the value of the first variable and the value of the second variable. Switching processing of each channel (moving image including video and audio to be broadcast) of the display units 43 and 44 is executed. Specifically, when the value of the first variable and the value of the second variable are updated, the control device 60 determines that the first variable is “1” for each of the sheets 12, 13, 15, and 16, and Whether the second variable is “1” or “2” is determined. The control device 60 controls the display units 43 and 44 of the first monitor 21 based on the determination result.

  For example, when the first variable of a specific seat is “1” and the second variable of the specific seat is “1”, the control device 60 determines that the occupant sitting on the specific seat It determines with the 1st display part 43 facing. That is, the control device 60 determines that the occupant seated on the specific seat can view the video displayed on the first display unit 43. Therefore, the control device 60 turns on the power of the first display unit 43 and causes the first display unit 43 to display the video of the channel set by the operation panel 36 of the specific sheet. The power source of the first display unit 43 may be turned on when a power-on operation using the operation panel 36 of the specific sheet is performed.

  The same applies to the second display unit 44. That is, when the first variable of the specific seat is “1” and the second variable of the specific seat is “2”, the control device 60 determines that the occupant sitting on the specific seat It determines with the 2nd display part 44 facing. That is, the control device 60 determines that an occupant seated on the specific seat can view the video displayed on the second display unit 44. Therefore, the control device 60 turns on the power of the second display unit 44 and causes the second display unit 44 to display the video of the channel set by the operation panel 36 of the specific sheet. The power source of the second display unit 44 may be turned on when a power-on operation using the operation panel 36 of the specific sheet is performed.

  Here, the second sheet 12 and the fifth sheet 15 will be described as specific examples. In the example of FIG. 6, since the first variable of the second seat 12 is “1” and the second variable of the second seat 12 is “1”, the control device 60 is seated on the second seat 12. It is determined that the occupant and the first display unit 43 are facing each other. Accordingly, the control device 60 turns on the power of the first display unit 43 and causes the first display unit 43 to display the video of the channel set on the operation panel 36 of the second sheet 12. At that time, the control device 60 instructs the receiver 37 of the second sheet 12 to receive the audio information of the first display unit 43. Thus, the receiver 37 of the second sheet 12 receives the audio information of the video displayed on the first display unit 43, and the audio information flows to the earphone 38. Note that the same processing is executed for the third sheet 13.

  With the above control, the passenger sitting on the second seat 12 can enjoy the video and audio of the first display unit 43. The first display unit 43 may automatically display an image of a channel preset on the operation panel 36. In the example of FIG. 6, an occupant seated on the second seat 12 and an occupant seated on the third seat 13 share the video displayed on the first display unit 43. In this case, a priority order is set in advance between the second sheet 12 and the third sheet 13. According to this configuration, the image of the channel set on the operation panel 36 of the sheet having a high priority is automatically displayed on the first display unit 43.

  As another example, the occupant may set the channel of the first display unit 43 by using the activated operation panel 36 after the power of the first display unit 43 is turned on.

  In the example of FIG. 6, since the first variable of the fifth seat 15 is “1” and the second variable of the fifth seat 15 is “2”, the control device 60 is seated on the fifth seat 15. It is determined that the occupant and the second display unit 44 are facing each other. Accordingly, the control device 60 turns on the power of the second display unit 44 and causes the second display unit 44 to display the video of the channel set on the operation panel 36 of the fifth sheet 15. At that time, the control device 60 instructs the receiver 37 of the fifth sheet 15 to receive the audio information of the video displayed on the second display unit 44. Thereby, the receiver 37 of the fifth sheet 15 receives the audio information of the second display unit 44, and the audio information flows to the earphone 38. The power supply of the second display unit 44 may be turned on when a power-on operation using the operation panel 36 of the fifth sheet 15 is performed. The same process is executed for the sixth sheet 16.

  Next, the case where the display device 42 of the first monitor 21 is rotated 180 ° from the state of FIG. 6 will be described. When the rotation angle β1 = 180 °, the first display unit 43 is directed to the fifth sheet 15 and the sixth sheet 16 side, and the second display unit 44 is disposed on the second sheet 12 and the third sheet 13 side. It will be in the state of facing.

  The values of the first variable and the second variable for each of the sheets 12, 13, 15 and 16 when the display device 42 of the first monitor 21 is rotated 180 ° from the state of FIG. 6 are shown in Table 4 below. Value.

  Here, the second sheet 12 will be described as a specific example. When the display device 42 of the first monitor 21 is rotated 180 ° from the state of FIG. 6, the first variable of the second sheet 12 is “1” and the second variable of the second sheet 12 is “2”. It becomes. Therefore, the control device 60 determines that the occupant seated on the second seat 12 faces the second display unit 44. The control device 60 maintains the power ON state of the second display unit 44 and causes the second display unit 44 to display an image of the channel set on the operation panel 36 of the second sheet 12.

  At that time, the control device 60 instructs the receiver 37 of the second sheet 12 to receive the audio information of the video displayed on the second display unit 44. As a result, the receiver 37 of the second sheet 12 receives the audio information of the second display unit 44, and the audio information flows to the earphone 38. By the above control, even when the first monitor 21 is rotated, the passenger of the second seat 12 can continue to enjoy the video and audio of the channel set by the second display unit 44.

  Next, the process of turning off the power of the first monitor 21 will be described. The control device 60 executes the power OFF process when either of the following two conditions (first condition and second condition) is satisfied.

  The first condition is a condition that is satisfied when the second variable of all sheets is “0”. This means that there is no sheet in the direction in which the first display unit 43 and the second display unit 44 face. For example, when the rotation angle β1 of the first monitor 21 is 90 °, there is no sheet in the direction in which the first display unit 43 and the second display unit 44 face. Therefore, when the second variable of all the sheets is “0”, the control device 60 turns off the power of the first display unit 43 and the second display unit 44.

  The second condition is a condition that is satisfied when the first variable of two sheets belonging to the same column is “0”. For example, when the first variables of both the second seat 12 and the third seat 13 belonging to the second row are “0”, this means that the occupants of both the second seat 12 and the third seat 13 It means that it is not suitable for 21 side. For example, both the second sheet 12 and the third sheet 13 are rotated 180 ° from the state shown in FIG. In this case, since the first variables of both the second sheet 12 and the third sheet 13 are “0”, the control device 60 turns off the power of the first display unit 43. Similarly, when both the fifth sheet 15 and the sixth sheet 16 rotate from the state of FIG. 6 and the first variables of both the fifth sheet 15 and the sixth sheet 16 become “0”, the control device 60. Turns off the power of the second display unit 44.

  Next, a method for controlling the second monitor 22 will be described with reference to FIG. The subjects who can view the second monitor 22 are seated on the first row of seats (first seat 11) and the second row of seats (second seat 12 and third seat 13). An occupant sitting on the third row of seats (fourth seat 14).

  The control device 60 manages the third variable for each of the sheets 11, 12, 13 and 14 in the instruction (program, routine) to be executed. Here, the third variable is a flag for determining the orientation of the sheet, similarly to the first variable. The third variable is a state in which the occupant seated on the target seat faces the second monitor 22 (that is, the target seat is one of the first display unit 47 and the second display unit 48 of the second monitor 22). “1” when the image is set in a direction in which the image can be viewed), and “0” when the occupant seated on the target seat is not facing the second monitor 22 side.

  The ROM 63 stores in advance a third table that represents the relationship between the rotation angle α of each of the sheets 11, 12, 13, and 14 and the third variable. When the control device 60 receives the respective rotation angles α of the sheets 11, 12, 13 and 14, the control device 60 applies the respective rotation angles α to the third table, so Three variables are determined.

  Table 5 below is an example of the third table. In Table 5, only the portions necessary for the following description (values every 90 ° of the rotation angle α) are shown, and many portions are omitted. Similar to the first table, in the third table, “1” is set in the third variable for the range of the rotation angle α in which the second monitor 22 can be viewed for each of the sheets 11, 12, 13, and 14. Has been.

  In the example of FIG. 7, the rotation angles α of the sheets 11, 12, 13, and 14 are 180 °, 270 °, 90 °, and 0 °, respectively. Accordingly, the control device 60 refers to the third table and sets all the third variables of the sheets 11, 12, 13 and 14 to “1”.

  The control device 60 manages the fourth variable in the instruction (program, routine) to be executed. Here, the fourth variable is a variable indicating which display unit of the second monitor 22 is directed to which sheet side, like the second variable. More specifically, the fourth variable is “1” when the first display unit 47 of the second monitor 22 faces the target sheet. The fourth variable is “2” when the second display unit 48 of the second monitor 22 faces the target sheet. The fourth variable is “0” when neither the first display unit 47 nor the second display unit 48 of the second monitor 22 is directed toward the target sheet.

  The ROM 63 stores in advance a fourth table representing the relationship between the rotation angle β2 of the second monitor 22 and the fourth variables of the sheets 11, 12, 13 and 14. When receiving the rotation angle β2 of the second monitor 22, the control device 60 applies the rotation angle β2 to the fourth table to determine the fourth variables of the sheets 11, 12, 13, and 14, respectively.

  Table 6 below is an example of the fourth table. In Table 6, only the portions necessary for the following description (values of every 90 ° of the rotation angle β2) are shown, and many portions are omitted. Similar to the second table, in the fourth table, “1” is set to the fourth variable for the range of the rotation angle β2 in which the first display unit 47 faces the target sheet, and the second display unit 48 is the target table. “2” is set as the fourth variable for the range of the rotation angle β2 facing the sheet.

  In the example of FIG. 7, the rotation angle β2 = 0 °. Accordingly, the control device 60 refers to the fourth table and sets the fourth variable of the first sheet 11 to “1”. The control device 60 refers to the fourth table and sets each of the fourth variables of the second sheet 12 and the third sheet 13 to “0”. The control device 60 refers to the fourth table and sets the fourth variable of the fourth sheet 14 to “2”.

  As described above, the control device 60 sets the third variable and the fourth variable for each of the sheets 11, 12, 13, and 14. The values of the third variable and the fourth variable in the example of FIG. 7 are as shown in Table 7 below.

  The control device 60 performs the power ON / OFF processing of the display units 47 and 48 of the second monitor 22 and the display unit of the second monitor 22 according to the combination of the value of the third variable and the value of the fourth variable. Switching processing of the respective channels 47 and 48 (moving images including video and audio to be broadcast) is executed. Specifically, when the value of the third variable and the value of the fourth variable are updated, the control device 60 sets the third variable to “1” for each of the sheets 11, 12, 13, and 14, and , It is determined whether the fourth variable is “1” or “2”. The control device 60 controls the display units 47 and 48 of the second monitor 22 based on the determination result.

  In the example of FIG. 7, the third variable of the first sheet 11 is “1”, and the fourth variable of the first sheet 11 is “1”. Therefore, the control device 60 determines that the occupant seated on the first seat 11 and the first display unit 47 are facing each other. Therefore, the control device 60 turns on the power of the first display unit 47 and causes the first display unit 43 to display the video of the channel set on the operation panel 36 of the first sheet 11.

  On the other hand, in the example of FIG. 7, the third variable of the fourth sheet 14 is “1”, and the fourth variable of the fourth sheet 14 is “2”. Therefore, the control device 60 determines that the occupant seated on the fourth seat 14 and the second display unit 48 are facing each other. Therefore, the control device 60 turns on the power of the second display unit 48 and causes the second display unit 48 to display the video of the channel set on the operation panel 36 of the fourth sheet 14.

  Next, the case where the display device 42 of the second monitor 22 is rotated by 90 ° from the state of FIG. 7 (the state of the dotted line in FIG. 7) will be described. In this case, the control device 60 sets the fourth variables of the sheets 11, 12, 13 and 14 to “0”, “1”, “2” and “0” by referring to the fourth table. .

  Accordingly, the values of the third variable and the fourth variable when the display device 42 of the second monitor 22 is rotated by 90 ° from the state of FIG.

  In this case, since the third variable of the second seat 12 is “1” and the fourth variable of the second seat 12 is “1”, the control device 60 is seated on the second seat 12. It determines with the passenger | crew and the 1st display part 47 facing. Therefore, the control device 60 maintains the power ON state of the first display unit 47 of the second monitor 22 and causes the first display unit 47 to display the video of the channel set on the operation panel 36 of the second sheet 12. .

  Further, in this case, since the third variable of the third seat 13 is “1” and the fourth variable of the third seat 13 is “2”, the control device 60 is seated on the third seat 13. It is determined that the occupant and the second display unit 48 are facing each other. Therefore, the control device 60 maintains the power ON state of the second display unit 48 and causes the second display unit 48 to display the video of the channel set on the operation panel 36 of the third sheet 13.

  Next, the process of turning off the power of the second monitor 22 will be described. Regarding the second monitor 22, even when the display unit 47 (or 48) is directed toward the target seat, when the occupant of the target seat is not directed toward the second monitor 22, the control device 60 Then, the display unit 47 (or 48) is turned off. Specifically, for a sheet with the fourth variable “1” or “2”, when the third variable of the sheet is “0”, the control device 60 displays the display units 47 and 48 facing the sheet. Turn off any of the power supplies. For example, when the first sheet 11 rotates from the state of FIG. 7 and the third variable of the first sheet 11 becomes “0”, the control device 60 turns off the power of the first display unit 47.

  According to the above embodiment, it becomes possible for the passenger | crew of the some seats 11-16 in the vehicle 1 to view an image simultaneously. It is considered that the role of the monitor in the vehicle 1 increases as the development of the automatic driving technology progresses. In particular, it is conceivable that not only the rear seat occupant but also the front seat occupant including the driver spend free time in the passenger compartment. In such a situation, according to the present embodiment, the passengers in both the front seat and the rear seat can simultaneously view the monitor image in the passenger compartment.

  In the present embodiment, depending on the correlation between the respective orientations of the sheets 11 to 16 and the respective orientations of the monitors 21 and 22, the power sources of the monitors 21 and 22 and the channels of the monitors 21 and 22 are set. Can be controlled automatically. For example, an occupant seated in each of the seats 11 to 16 controls the ON / OFF of each of the monitors 21 and 22 and the respective channels of the monitors 21 and 22 by rotating the seat on which the seat is seated. it can. Therefore, while the occupant simply controls each of the monitors 21 and 22 without leaving the seats 11 to 16 on which the occupant is seated, the image desired by the occupant is displayed on either the first display unit or the second display unit. You can watch at.

  In addition, this invention is not limited to the said embodiment, A various modification can be employ | adopted within the scope of the present invention.

(Modification 1)
In order to detect the relative relationship between the respective directions of the sheets 11 to 16 and the respective directions of the monitors 21 and 22, a sensor other than the angle detection sensor may be used. For example, a distance sensor may be used. The distance sensor includes a light source (LED, laser diode, etc.) and a light receiving element. In the distance sensor, the light source emits light, and the light receiving element receives the light reflected from the measurement object. The distance sensor calculates the distance to the measurement object from the received light information.

  Below, although the structure of the 1st monitor 21 is demonstrated, the 2nd monitor 22 may also be provided with the same structure. As shown in FIG. 8, the first monitor 21 is provided at the two first distance sensors 71 provided at both ends in the width direction on the first display unit 43 side, and at both ends in the width direction on the second display unit 44 side. Two second distance sensors 72 provided. A reflector (reflector) 39 is disposed on each headrest 33 of the sheets 11 to 16.

  The first distance sensor 71 calculates the distance to the object in the direction in which the first display unit 43 is directed. For example, when the second sheet 12 is directed toward the first monitor 21, the light emitted from each of the first distance sensors 71 is reflected by the reflector 39 of the second sheet 12. Therefore, each of the two first distance sensors 71 can detect the distance of the second sheet 12 to the reflector 39. The control device 60 acquires the relative angle between the first display unit 43 and the second sheet 12 based on those distances. And if it determines with the passenger | crew who seated on the 2nd sheet | seat 12 and the 1st display part 43 of the 1st monitor 21 facing based on those distances, the control apparatus 60 will be the 1st display part 43. Is turned on, and the image of the channel set on the operation panel 36 of the second sheet 12 is displayed on the first display unit 43.

  In addition, when the 2nd sheet | seat 12 is rotated from the state of FIG. 8, either of the distance detected by the two 1st distance sensors 71 exceeds each predetermined range, or two 1st distance sensors Any one of 71 cannot detect the distance. When any of these is established, the control device 60 determines that the occupant seated on the second seat 12 does not face the first display unit 43 of the first monitor 21. Therefore, the control device 60 turns off the power of the first display unit 43. Similarly, the control device 60 can determine whether the second display unit 44 and an occupant seated on a specific seat are facing each other using the distances detected by the two second distance sensors 72. it can.

  In addition, the configuration of the first table to the fourth table is not limited to the above-described example. Regarding the first table and the third table, the range of the rotation angle α in which the first variable is “1” may be appropriately changed according to the configuration of the seat and the monitor. Regarding the second table, the range of the rotation angle β1 that becomes “1” and the range of the rotation angle β1 that becomes “2” may be appropriately changed according to the configuration of the seat and the monitor. Regarding the fourth table, the range of the rotation angle β2 that becomes “1” and the range of the rotation angle β2 that becomes “2” may be appropriately changed according to the configuration of the seat and the monitor.

  In the above-described embodiment, each of the monitors 21 and 22 is automatically rotated by the motor. However, each of the monitors 21 and 22 may be manually rotated. Furthermore, the arrangement of the seats in the vehicle 1 is not limited to the above example. For example, the vehicle 1 may be a two-row seat vehicle or a five-row seat vehicle.

  The above-described embodiment may be applied to a vehicle not equipped with automatic driving control. For example, according to the above-described embodiment during parking or charging of the electric vehicle, it is possible for the passengers seated on the plurality of seats 11 to 16 in the vehicle 1 to simultaneously view different images.

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 10 ... Vehicle body floor, 11-16 ... Seat, 20 ... Vehicle body roof, 21, 22 ... Monitor, 35-1 to 35-6 ... Seat angle detection part, 42 ... Display apparatus, 43, 44, 47, 48: Display unit, 46-1, 46-2: Monitor angle detection unit, α: Sheet rotation angle, β1, β2: Monitor rotation angle

Claims (1)

A vehicle screen display device applied to a vehicle including at least two seats rotatably attached to a vehicle body,
A first display unit is provided between the at least two seats so as to be rotatable with respect to the vehicle body, and displays a first image on one surface, and is identical to the first image on the other surface. Or a display monitor including a second display unit for displaying a different second video;
Detecting means for detecting a relative relationship between the orientation of each of the at least two sheets and the orientation of the monitor;
A control device for controlling the first display unit and the second display unit according to the detected relative relationship;
A vehicle screen display device comprising:

Images