Information processing device and information processing method

Abstract

To improve more preferably, adjustment of an angle of a display disposed on a seat.SOLUTION: An information processing apparatus is incorporated in a vehicle in which a display is disposed on a seat and at a position rearward than a head-rest mounted on an upper part of the seat. The apparatus includes a control part for setting, in a case where the head-rest is in a first state in which the head-rest is not pushed forward to a given position, a range of tilting the display at a first range so as not to interfere with the head-rest in the first state; or setting, whereas in a case where the head-rest is in a second state in which the head-rest is pushed forward to the given position, the range of tilting the display at a second range being a wider range that is wider than the first range toward forward.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to an information processing device and an information processing method. [Background technology]

[0002] A technique has been disclosed in which a display for rear seat passengers is attached to the headrest of the front seat of a vehicle (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-099782 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to more suitably adjust the angle of a display attached to a seat. [Means for solving the problem]

[0005] One aspect of the present disclosure is An information processing device provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest at an upper portion of the seat, When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; The information processing device is provided with a control unit that executes the above.

[0006] Another aspect of the present disclosure is An information processing method executed by a computer provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest at an upper portion of the seat, the method comprising: The computer When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; This is an information processing method for performing the above.

[0007] Another aspect of the present disclosure is a program for causing a computer to execute the above-described information processing method, or a storage medium that non-temporarily stores the program. [Effects of the Invention]

[0008] According to the present disclosure, the angle of a display attached to a seat can be adjusted more suitably. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram showing a schematic configuration of an FR sheet according to an embodiment. [Figure 2] 10 is a diagram showing the state of the FR seat when the FR seat is moved to the most forward position and the backrest and headrest are folded down to the most forward position. FIG. [Figure 3] FIG. 10 is a diagram showing the movable range of the RR display when the FR seat is in the forwardmost position. [Figure 4] FIG. 1 is a diagram illustrating a schematic configuration of a system according to an embodiment. [Figure 5]2 is a block diagram showing an example of the configuration of a FR seat, a FR seat ECU, a rear controller, a RR seat ECU, a FR display, a RR display ECU, and a RR display that constitute the system according to the embodiment. FIG. [Figure 6] 2 is a diagram illustrating an example of the functional configuration of a FR seat ECU, a rear controller, a RR seat ECU, a FR display, a RR display ECU, and a RR display. [Figure 7] FIG. 10 is a sequence diagram showing the overall processing of the system when a rear seat passenger tilts the RR display horizontally. [Figure 8] FIG. 10 is a sequence diagram showing the overall processing of the system when the RR display is raised from a horizontal tilt state. [Figure 9] FIG. 10 is a sequence diagram showing the overall processing of the system when the horizontal tilt state of the RR display is canceled when the ACC power is turned from ON to OFF. [Figure 10] FIG. 10 is a sequence diagram showing the overall processing of the system when the RR display is tilted horizontally when the ACC power is turned on. [Figure 11] FIG. 10 is a sequence diagram showing the overall processing of the system when the RR display is raised from a horizontal tilt state. [Figure 12] FIG. 10 is a sequence diagram showing the overall processing of the system when the RR display is raised from a horizontal tilt state. [Figure 13] FIG. 10 is a sequence diagram showing the overall processing of the system when the FR seat is in a normal state. DETAILED DESCRIPTION OF THE INVENTION

[0010] An information processing device according to one aspect of the present disclosure is an information processing device provided in a vehicle in which a display is attached to a seat located behind the headrest above the seat. The display is, for example, an information input / output device for a passenger (hereinafter also referred to as a rear seat passenger) located behind the display. That is, the rear seat passenger can obtain information by looking at the display screen or input information from the display screen. This display is tiltable. The tilt function allows, for example, the rear seat passenger to adjust the display to an angle that is easy to view.

[0011] Therefore, when the headrest is in a first state in which the headrest is not tilted to a predetermined position in the forward direction of the vehicle, the control unit sets the tilt range of the display to a first range in which the display does not interfere with the headrest in the first state. By tilting the display within the first range, it is possible to adjust the display to an angle that is easy for rear seat passengers to view and to prevent the display from interfering with the headrest. The first state may be a state in which the seat is usable.

[0012] On the other hand, if rear passengers want to view the scenery rather than the display, they can tilt the display forward to the second range. However, because there is a headrest in front of the display, tilting the display forward in this state could cause it to interfere with the headrest. Therefore, the display can only be tilted when the headrest is not interfering with it.

[0013] That is, when the headrest is in the second state in which it is reclined to the predetermined position, the control unit adjusts the range in which the display is tilted to be further forward than the first range. The second range includes a wider range. In the second state, the headrest is tilted forward, making the seat unusable. The second range also includes a state in which the display is tilted forward, and may be, for example, a range in which the display can be tilted horizontally. When the headrest is in the second state, the display does not interfere even if it is tilted forward. Therefore, by tilting the display in such a case, it is possible to increase the field of view from the rear seat while suppressing interference with the headrest, thereby improving the satisfaction of rear seat occupants.

[0014] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The configurations of the following embodiments are examples, and the present disclosure is not limited to the configurations of the embodiments. Furthermore, the following embodiments can be combined as much as possible.

[0015] First Embodiment FIG. 1 is a diagram showing a schematic configuration of a front seat 1 (hereinafter also referred to as FR seat 1) according to this embodiment. The FR seat 1 is, for example, a passenger seat, but is not limited thereto. It may be any seat other than a driver's seat, in which a display can be attached to a headrest 4 (described later). The state of the FR seat 1 shown in FIG. 1 is a state in which a user can sit on the FR seat 1. The FR seat 1 includes a seat surface 2 on which the user sits, a backrest 3 against which the user leans, a headrest 4 that supports the user's head, and a RR display 26. The backrest 3 is connected at its lower part to the seat surface 2 and at its upper part to the headrest 4. The display 26 is attached to the upper part of the backrest 3, rearward of the headrest 4, and can be tilted in the direction of the arrow in the state of the FR seat 1 shown in FIG. 1. The range indicated by the arrow is an example of a first range, and the state of the headrest 4 shown in FIG. 1 is an example of a first state. The FR seat 1 is attached to a vehicle and can be moved in the fore-and-aft direction of the vehicle (the left-and-right direction in FIG. 1). Movement is achieved by moving the seat 2 on rails attached to the vehicle's chassis. The angle of the backrest 3 relative to the seat 2 can also be adjusted. The angle of the backrest 3 can be changed in the front-to-rear direction around the connection point with the seat 2. The angle of the headrest 4 can also be changed in the front-to-rear direction around the connection point with the backrest 3.

[0016] FIG. 2 shows the state of the FR seat 1 when it is moved all the way forward and the backrest 3 and headrest 4 are tilted all the way forward. An occupant cannot sit on the FR seat 1. Even in this state, the RR display 26 can be tilted in the direction of the arrow. The state of the seat 2, backrest 3, and headrest 4 shown in FIG. 1 is referred to as the normal state, and the state of the seat 2, backrest 3, and headrest 4 shown in FIG. 2 is referred to as the forward-most state. The forward-most state is not limited to the state in which the FR seat 1 is moved all the way forward, but can also include a state in which it is positioned within a predetermined range from that position. Similarly, it is not limited to the state in which the backrest 3 and headrest 4 are tilted all the way forward, but can also include a state in which it is positioned within a predetermined range from that state. These positions may be, for example, positions set so that rear seat occupants can relax. That is, they may be positions that maximize rear seat space or positions in which the headrest 4 does not obstruct the view forward from the rear seat.

[0017] The RR display 26 according to this embodiment can be tilted forward until it is in a horizontal position when the FR seat 1 is in the forward-most position. FIG. 3 is a diagram showing the movable range of the RR display 26 when the FR seat 1 is in the forward-most position. The state in which the RR display 26 is tilted all the way forward is indicated by the reference numeral 260 in FIG. 3. Incidentally, tilting the RR display 26 to a horizontal position is also referred to as horizontal tilt. Incidentally, the range indicated by the arrow in FIG. 3 is an example of the second range, and the state of the headrest 4 shown in FIG. 3 is an example of the second state. For example, when rear seat passengers do not use the display, the RR display 26 can be tilted forward until it is in a horizontal position. The R display 26 may obstruct the view of rear seat passengers and become a nuisance to them. However, horizontal tilt of the RR display 26 makes it possible to ensure the view of rear seat passengers. Note that the RR display 26 does not need to be in an exactly horizontal position. For example, if it is tilted forward from the vertical direction, the extent to which it obstructs the view of rear seat passengers can be reduced.

[0018] For example, when a rear seat passenger presses a predetermined button, the horizontal tilt function of the RR display 26 is activated, causing the RR display 26 to assume a horizontal position. The button pressed by the rear seat passenger at this time is called a horizontal tilt button. In this embodiment, pressing the horizontal tilt button once rotates the RR display 26 until it assumes a horizontal tilt position. Therefore, the horizontal tilt button according to this embodiment is also called a one-touch horizontal tilt button. The one-touch horizontal tilt button is not limited to a physical button, and may be a button displayed on a touch panel. The one-touch horizontal tilt button may be provided, for example, on the rear controller 22, the FR display 24, the RR display 26, or the FR seat 1.

[0019] However, if the RR display 26 is tried to be placed in a horizontal position even when the headrest 4 is not tilted forward, there is a risk that the RR display 26 will interfere with the headrest 4. Therefore, in this embodiment, pressing the one-touch horizontal tilt button is enabled only when the FR seat 1 is in the forward-most position. That is, the RR display 26 can be operated to be placed in a horizontal position only when the headrest 4 is tilted forward. On the other hand, if the headrest 4 is rotated backward when the RR display 26 is in a horizontal position, there is a risk that the headrest 4 will interfere with the RR display 26. Therefore, in this embodiment, when the RR display 26 is in a horizontal position, the headrest 4 is prohibited from being rotated backward (also referred to as being raised or standing up). This can also be said to prohibit the position shown in FIG. 1 or FIG. 2 from being reached. In other words, the headrest 4 is permitted to be moved only when the angle of the RR display 26 is set to an angle that does not interfere with the headrest 4. Note that the following description will be given assuming that the headrest 4 and the horizontal RR display 26 will interfere with each other unless the FR seat 1 is in the forward-most position. Furthermore, when the RR display 26 is not in a horizontal tilt state, it means that the RR display 26 is in the tilt state shown in Figure 1 or Figure 2, i.e., at an angle that allows rear seat passengers to view the screen.

[0020] Furthermore, if an image is displayed on the RR display 26 in the horizontal position, the image may be in the field of view of the driver in the front seat, which may interfere with driving. Furthermore, even if an image is displayed on the RR display 26, it is difficult for rear seat passengers to see it. Therefore, when the RR display 26 is placed in the horizontal position, the display on the RR display 26 is turned off. Furthermore, operation of the RR display 26 via the touch panel or remote control is disabled.

[0021] 4 is a diagram illustrating a schematic configuration of a system 20 according to this embodiment. The system 20 includes a front-rear seat ECU 21, a rear controller 22, a rear-rear seat ECU 23, a front-rear display 24, a rear-rear display ECU 25, and a rear-rear display 26. These are connected via an in-vehicle network (e.g., CAN (registered trademark): Controller Area Network).

[0022] The FR seat ECU 21, the rear controller 22, the RR seat ECU 23, the FR display 24, the RR seat ECU 25, and the RR display 26 each have a processor and a memory. The processor executes a computer program in the memory and performs processing as each device.

[0023] The FR seat ECU 21 controls the state of the FR seat 1 by processing a computer program. The FR seat ECU 21 is a device for changing the position of the seat 2, the angle of the backrest 3, the angle of the headrest 4, etc., to change the state of the FR seat 1. When the FR seat 1 is placed in the most forward position, or when the most forward position of the FR seat 1 is canceled, the FR seat ECU 21 transmits a notification to that effect to the in-vehicle network. The FR seat ECU 21 may also store, as the state of the FR seat 1, whether or not the FR seat 1 is in the most forward position. The FR seat ECU 21 may also store, as the state of the FR seat 1, the position of the seat 2, the angle of the backrest 3, the angle of the headrest 4, etc.

[0024] The rear controller 22 is a device that changes the state of the RR display 26 by processing a computer program according to input from a rear seat passenger. The RR seat ECU 23 is a device that changes the state of the rear seat by processing a computer program and stores the state of the rear seat.

[0025] The FR display 24 is a device that provides a user interface screen and interacts with front seat occupants. The front seat occupants include the occupant in the driver's seat and the occupant in the passenger seat. For example, when a front seat occupant expresses a desire to move the RR display 26 via the user interface screen, a command to move the position of the RR display 26 is sent to the in-vehicle network through processing of a computer program.

[0026] The RR display ECU 25 is a device that changes the state of the RR display 26 through computer program processing and stores the state of the RR display 26. The RR display 26 also provides a user interface screen and interacts with rear seat passengers. When a rear seat passenger expresses a desire to move the RR display 26 via the user interface screen, the RR display ECU 25 transmits a command to move (tilt) the position of the RR display 26 through computer program processing.

[0027] Next, a description will be given of the hardware configuration of the FR seat 1, the FR seat ECU 21, the rear controller 22, the RR seat ECU 23, the FR display 24, the RR display ECU 25, and the RR display 26. Fig. 5 is a block diagram that schematically shows an example of the configuration of each of the FR seat 1, the FR seat ECU 21, the rear controller 22, the RR seat ECU 23, the FR display 24, the RR display ECU 25, and the RR display 26 that constitute the system 20 according to this embodiment.

[0028] The FR seat 1 is provided with an actuator 11 that moves the seat cushion 2 in the longitudinal direction of the vehicle, an actuator 12 that changes the angle of the backrest 3 relative to the seat cushion 2, an actuator 13 that changes the angle of the headrest 4 relative to the backrest 3, and a communication unit 14. Each of the actuators 11, 12, and 13 operates based on a signal from the FR seat ECU 21. Each of the actuators 11, 12, and 13 is typically an electric motor. Note that moving each component of the FR seat 1 with each of the actuators 11, 12, and 13 is also referred to as operating the FR seat 1. Operating the FR seat 1 includes moving it to the most forward position and canceling the most forward position.

[0029] The communication unit 14 is an interface unit for connecting the FR seat 1 to an in-vehicle network. In this embodiment, a plurality of vehicle components including the FR seat ECU 21, rear controller 22, RR seat ECU 23, FR display 24, RR display ECU 25, and RR display 26 are connected to one another via a bus of the in-vehicle network. An example of a standard for the in-vehicle network is CAN (registered trademark: Controller Area Network). Examples of communication standards other than CAN include Ethernet. Net (registered trademark) can be exemplified.

[0030] The RR display 26 attached to the FR seat 1 includes a processor 261, a memory 262, an input / output unit 263, a communication unit 264, and an actuator 265. These are interconnected by a bus.

[0031] The processor 261 is a CPU (Central Processing Unit), a DSP (Digital Signal Processor), etc. The processor 261 controls the RR display 26 and outputs various information. The memory 262 is a RAM (Random Access Memory), a ROM (Read Only Memory), and Only Memory), EPROM (Erasable Programmable ROM), hard disk drive (HDD, Hard Disk Drive), removable media, etc. The memory 262 stores an operating system (OS), various programs, various tables, etc. The processor 261 executes the programs stored in the memory 262, and the various components are controlled through the execution of these programs. This allows the RR display 26 to realize functions that meet a predetermined purpose. The memory 262 is a computer-readable recording medium.

[0032] The input / output unit 263 is a means for inputting and outputting information. Specifically, it is composed of a touch panel and its control means, and a liquid crystal display and its control means. In this embodiment, the touch panel and liquid crystal display are composed of a single touch panel display. Note that this is not limited to a touch panel display, and may be, for example, a mouse, a keyboard, a push button, a microphone, etc. The input / output unit 263, for example, displays a one-touch horizontal tilt button on the touch panel display and detects that the user has tapped the one-touch horizontal tilt button. This means that the user has pressed the one-touch horizontal tilt button. Furthermore, the communication unit 264 has the same function as the communication unit 14 of the FR seat 1, so a description thereof will be omitted. The actuator 265 is a device for changing the angle of the RR display 26.

[0033] The FR seat ECU 21 has a processor 211, a memory 212, and a communication unit 213. The processor 211, the memory 212, and the communication unit 213 of the FR seat ECU 21 have functions equivalent to those of the processor 261, the memory 262, and the communication unit 264 of the RR display 26, and therefore description thereof will be omitted.

[0034] The rear controller 22 has a processor 221, a memory 222, an input / output unit 223, and a communication unit 224. The processor 221, the memory 222, the input / output unit 223, and the communication unit 224 of the rear controller 22 have functions equivalent to those of the processor 261, the memory 262, the input / output unit 263, and the communication unit 264 of the RR display 26, and therefore description thereof will be omitted.

[0035] The RR seat ECU 23 has a processor 231, a memory 232, and a communication unit 233. The processor 231, the memory 232, and the communication unit 233 of the RR seat ECU 23 have functions equivalent to those of the processor 261, the memory 262, and the communication unit 264 of the RR display 26, and therefore description thereof will be omitted.

[0036] The FR display 24 has a processor 241, a memory 242, an input / output unit 243, and a communication unit 244. The processor 241, the memory 242, the input / output unit 243, and the communication unit 244 of the FR display 24 have functions equivalent to those of the processor 261, the memory 262, the input / output unit 263, and the communication unit 264 of the RR display 26, and therefore description thereof will be omitted.

[0037] The RR display ECU 25 has a processor 251, a memory 252, and a communication unit 253. The processor 251, the memory 252, and the communication unit 253 of the RR display ECU 25 have functions equivalent to those of the processor 261, the memory 262, and the communication unit 264 of the RR display 26, and therefore description thereof will be omitted.

[0038] The processor 261 of the RR display 26, the processor 211 of the FR seat ECU 21, the processor 221 of the rear controller 22, the processor 231 of the RR seat ECU 23, the processor 241 of the FR display 24, or the processor 251 of the RR display ECU 25 are examples of a control unit.

[0039] Next, we will explain the functions of the FR seat ECU 21, rear controller 22, RR seat ECU 23, FR display 24, RR display ECU 25, and RR display 26. Fig. 6 is a diagram illustrating an example of the functional configuration of the FR seat ECU 21, rear controller 22, RR seat ECU 23, FR display 24, RR display ECU 25, and RR display 26. The FR seat ECU 21, rear controller 22, RR seat ECU 23, FR display 24, RR display ECU 25, and RR display 26 each include control units 21A, 22A, 23A, 24A, 25A, and 26A as functional components. The processors 211, 221, 231, 241, 251, and 261 of the FR seat 1, FR seat ECU 21, rear controller 22, RR seat ECU 23, FR display 24, RR display ECU 25, and RR display 26 execute the processes of the control units 21A, 22A, 23A, 24A, 25A, and 26A according to computer programs stored in memory. However, any of the functional components or part of the processes may be executed by a hardware circuit.

[0040] When each of the control units 21A, 22A, 23A, 24A, 25A, and 26A receives a notification or command transmitted over the in-vehicle network, it transfers the notification or command to an appropriate vehicle component.

[0041] Next, a description will be given of the overall processing of the system 20. Fig. 7 is a sequence diagram showing the overall processing of the system 20 when a rear seat passenger tilts the RR display 26 horizontally. Note that the processing in each device is actually executed by the control units 21A, 22A, 23A, 24A, 25A, and 26A of each device, but for simplicity, the following processing will be described as if each device were performing the processing.

[0042] Also, the processing of the RR seat ECU 23 and the FR display 24 is omitted. In reality, a signal is transmitted from the rear controller 22 to the RR display ECU 25 via the FR display 24, but Fig. 7 illustrates a signal being transmitted from the rear controller 22 to the RR display ECU 25. Similarly, in reality, a signal is transmitted from the RR display ECU 25 to the rear controller 22 via the FR display 24, but Fig. 7 illustrates a signal being transmitted from the RR display ECU 25 to the rear controller 22. These conditions are the same in the other sequence diagrams below.

[0043] First, to tilt the RR display 26 horizontally, the FR seat 1 must be in the front-most position. When the FR seat ECU 21 detects that the FR seat 1 is in the front-most position (processing of S11), it notifies the rear controller 22, the RR display ECU 25, and the RR display 26 that the FR seat 1 is in the front-most position (processing of S12). At this time, the FR seat 1 is in the position shown in FIG. 2.

[0044] When the user inputs to move the FR seat 1 to the frontmost position, the FR seat ECU 21 controls the actuators 11, 12, 13 of the FR seat 1 to move the FR seat 1 to the frontmost position. For example, when the actuators 11, 12, and 13 of the rear wheel seat 1 are actuated for a predetermined time, the rear wheel seat ECU 21 may detect that the rear wheel seat 1 is in the forward-most position. Alternatively, the rear wheel seat ECU 21 may detect that the rear wheel seat 1 is in the forward-most position by attaching a sensor to the rear wheel seat 1 for detecting that the seat is in the forward-most position. The seat position notification may be transmitted, for example, during regular communication via CAN (registered trademark).

[0045] In this way, the FR seat ECU 21 notifies that the FR seat 1 is in the forward-most state, thereby permitting horizontal tilt of the RR display 26. This enables the one-touch horizontal tilt button of the rear controller 22. When the rear controller 22 detects that the one-touch horizontal tilt button has been pressed (processing of S13), the rear controller 22 sends a horizontal tilt button ON notification, which is a notification indicating that the one-touch horizontal tilt button has been pressed, to the RR display ECU 25 (processing of S14). Then, the RR display ECU 25 sends a horizontal tilt instruction to the RR display 26 (processing of S15). This horizontal tilt instruction is an instruction for placing the RR display 26 in a horizontally tilted state. Note that the horizontal tilt button ON notification may be sent from the rear controller 22 to the RR display ECU 25 only when the FR seat 1 is in the forward-most state. Alternatively, the horizontal tilt instruction may be sent from the RR display ECU 25 to the RR display 26 only when the FR seat 1 is in the forward-most state. Alternatively, the RR display 26 that receives the horizontal tilt command may tilt the RR display 26 horizontally only when the FR seat 1 is in the forward-most position. That is, the determination that the RR seat 1 is in the forward-most position and the determination to tilt the RR display 26 horizontally may be made by any of the rear controller 22, the RR display ECU 25, and the RR display 26. The horizontal tilt command may include a command to turn off the screen, a command to disable the touch panel, and a command to disable reception of signals from the remote control.

[0046] Before the RR display 26 is tilted horizontally, the screen is turned off (processing of S16). This screen OFF state continues until the horizontal tilt state is resolved. This prevents the screen from being displayed in the horizontal tilt state. Furthermore, operation of the RR display 26 via the touch panel is disabled (processing of S17). This prevents the angle of the RR display 26, the screen ON, and other operations from being performed via the touch panel. Furthermore, reception of signals from the remote control is disabled (processing of S18). This remote control is a controller that allows rear seat passengers to remotely operate the RR display 26. This prevents the angle of the RR display 26, the screen ON, and other operations from being performed, just like in the case of a touch panel.

[0047] Then, the RR display 26 transmits a headrest erection-prohibited notification to the FR seat ECU 21, the rear controller 22, and the RR display ECU 25 (processing of S19). The headrest erection-prohibited notification is a notification for prohibiting the headrest 4 from being rotated backward (raised). This notification is transmitted before the RR display 26 performs horizontal tilt. After this notification is transmitted, any operation performed by the user to rotate the headrest 4 backward is invalidated by any of the devices.

[0048] Next, the RR display 26 performs a horizontal tilt operation (processing of S20). As a result, the RR display 26 enters a horizontal tilt state. That is, it enters the state indicated by the reference numeral 260 in FIG. 3. Once in the horizontal tilt state, the RR display 26 transmits a status notification and a tilt state notification to the RR display ECU 25 (processing of S21 and S22). The status notification is information for notifying the RR display ECU 25 of the following states: screen off, touch panel disabled, and remote control disabled. The tilt state notification is information indicating the tilt state of the RR display 26, and at this time, information indicating the horizontal tilt state is transmitted.

[0049] In this way, the horizontal tilt state can be achieved only when the FR seat 1 is in the forward-most position. This can be said to enable the one-touch horizontal tilt button or to permit the horizontal tilt state only when the FR seat 1 is in the forward-most position. Note that although the screen is turned off in the processing of S16, as an alternative method, the screen may be turned off when the tilt angle of the RR display 26 reaches a predetermined angle or more.

[0050] Second Embodiment In this second embodiment, a process for canceling the horizontally tilted state of the RR display 26, that is, rotating the RR display 26 backward and raising it, will be described. FIG. 8 is a sequence diagram showing the overall process of the system 20 when raising the RR display 26 from the horizontally tilted state. At the start of this sequence diagram, the RR display 26 is in the horizontally tilted state, i.e., the state shown in FIG. 3.

[0051] When the user presses a seat position change button on the rear controller 22, a seat movement instruction is sent from the rear controller 22 to the FR seat ECU 21 (processing of S31). Note that the seat movement instruction can be sent from, for example, the rear controller 22, the FR seat 1, or the FR display 24. The rear controller 22, the FR seat 1, or the FR display 24 is provided with a button for moving, for example, the seat cushion 2, the backrest 3, or the headrest 4 from the most forward state. Note that this button is not limited to a physical button, and may be displayed on a screen. By pressing this button, the user can arbitrarily shift the position of the seat cushion 2 of the FR seat 1, adjust the angle of the backrest 3, or adjust the angle of the headrest 4.

[0052] The FR seat ECU 21 moves (actuates) the FR seat 1 (processing of S32). At this time, the seat position is changed in accordance with the user's operation. At this time, the RR display 26 is still in the horizontal tilt state, so the headrest 4 is not raised.

[0053] When movement of the FR seat 1 begins, the FR seat ECU 21 transmits a foremost state OFF notification to the rear controller 22, the RR display ECU 25, and the RR display 26 (processing of S33). The foremost state OFF notification is information indicating that the foremost state of the FR seat 1 has been released. Furthermore, upon receiving the foremost state OFF notification, the RR display ECU 25 transmits a horizontal tilt OFF instruction, which is an instruction to release the horizontal tilt state of the RR display, to the RR display 26 (processing of S34). The horizontal tilt OFF instruction is issued when the RR display ECU 25 receives the foremost state OFF notification after being notified that the RR seat 1 is in the foremost state by the seat position notification in the processing of S12.

[0054] When the RR display 26 receives the frontmost state OFF notification and the horizontal tilt OFF instruction, it executes an operation to cancel the horizontal tilt state (processing of S35). At this time, for example, it is returned to the angle before it entered the horizontal tilt state. The angle of the RR display 26 before it entered the horizontal tilt state is stored in the memory of the RR display 26. Alternatively, the angle of the RR display 26 may be adjusted so that it is at a predetermined angle that is not in the horizontal tilt state.

[0055] When the horizontal tilt cancellation operation is completed, the RR display 26 transmits a horizontal tilt OFF completion notification to the RR display ECU 25 (processing of S36). The RR display ECU 25, which has received the horizontal tilt OFF completion notification, transmits a headrest raising permission notification to the FR seat ECU 21 and the rear controller 22 (S37). The headrest raising permission notification is a notification indicating that the headrest 4 may be raised. Upon receiving this notification, Then, the FR seat ECU 21 can raise the headrest 4.

[0056] The RR display 26 also returns the ON / OFF state of the screen to the state it was in before the horizontal tilt state (processing of S38). That is, if the screen was ON before the horizontal tilt state was entered, the screen is turned ON after the horizontal tilt is canceled, and if the screen was OFF before the horizontal tilt state was entered, the screen is turned OFF after the horizontal tilt is canceled. The ON / OFF state of the screen before the horizontal tilt state was entered is stored in the memory of the RR display 26.

[0057] Furthermore, the RR display 26 returns the enabled or disabled state of the touch panel to the state before the horizontal tilt state (processing of S39). The enabled or disabled state of the touch panel before the horizontal tilt state is stored in the memory of the RR display 26. The RR display 26 also enables reception of signals from the remote control that was disabled when the RR display 26 was placed in the horizontal tilt state (processing of S40).

[0058] Then, the RR display 26 transmits a status notification and a tilt state notification to the RR display ECU 25 (processing of S41 and S42).

[0059] If the frontmost state is detected after this, the RR display 26 remains upright and does not enter the horizontal tilt state until the pressing of the one-touch horizontal tilt button S13 is detected. In other words, the state shown in Figure 2 is maintained.

[0060] In this way, the headrest 4 can be moved after the horizontal tilt state is released, so that interference of the headrest 4 with the RR display 26 can be suppressed.

[0061] Third Embodiment In this third embodiment, a process when the ACC power supply is turned off from on will be described. The ACC power supply is an accessory power supply, and is a power supply that can operate at least the RR display 26. Below, a process when the ACC power supply is turned off when the FR seat 1 is in the forwardmost state will be described.

[0062] Here, the state of the FR seat 1 can be changed by the user's button operation even when the ACC power is OFF. On the other hand, when the ACC power is OFF, power is not supplied to the RR display 26, and the angle of the RR display 26 cannot be adjusted. If the ACC power is turned OFF while the RR display 26 remains in a horizontally tilted state, the user may be unable to adjust the position of the FR seat 1, or the RR display 26 may be interfered with when the headrest 4 of the FR seat 1 is raised. Therefore, in this embodiment, if the ACC power is turned OFF while the RR display 26 is in a horizontally tilted state, the horizontally tilted state of the RR display 26 is canceled. In this case, the angle of the RR display 26 is returned to the angle before the horizontally tilted state.

[0063] Next, we will explain the process for canceling the horizontally tilted state of the RR display 26 when the ACC power supply is turned from ON to OFF. Figure 9 is a sequence diagram showing the overall process of the system 20 when the horizontally tilted state of the RR display 26 is canceled when the ACC power supply is turned from ON to OFF. This sequence diagram shows the process when the FR seat 1 is in the forward-most state and the RR display 26 is in the horizontally tilted state until just before the ACC power supply is turned OFF.

[0064] When the ACC power supply is turned off, the RR display ECU 25 detects this (processing of S51). Next, the RR display ECU 25 The angle of the RR display 26 and the state of the FR seat 1 are written to memory (processing of S52). The angle of the RR display 26 and the state of the FR seat 1 immediately before the ACC power is turned off are the last angle of the RR display 26 and the state of the FR seat 1 the previous time the ACC power was turned on. Note that the timing for writing the angle of the RR display 26 and the state of the FR seat 1 immediately before the ACC power is turned off to memory is not limited to this timing; for example, writing to memory may be performed so that the data is always updated when the ACC power is on. Then, the RR display ECU 25 sends an instruction to the RR display 26 to return it to the angle immediately before the horizontal tilt state (original angle) (processing of S53). This angle immediately before the horizontal tilt state (original angle) is stored in the memory of the RR display ECU 25 or the memory of the RR display 26.

[0065] The RR display 26 executes a process to change the angle back to its original angle (processing of S54). For example, the angle of the RR display 26 may be feedback-controlled based on the actuator's operation angle or operation time, or the angle of the RR display 26 may be detected by a sensor and feedback-controlled. Alternatively, the angle of the RR display 26 may be adjusted to a predetermined angle that is not the horizontal tilt state, rather than the original angle. Then, when the angle of the RR display 26 is returned to its original angle, the RR display 26 transmits a change completion notice to the RR display ECU 25 (processing of S55). The change completion notice is information indicating that the angle of the display 26 has been changed to the angle immediately before it became the horizontal tilt state.

[0066] Thereafter, a stop instruction is transmitted to the RR display 26, which is an instruction to shut down the RR display 26 (processing of S56). Then, the RR display ECU 25 executes a stop process, which is a process for performing a shutdown (processing of S57). After receiving the stop instruction, the RR display 26 executes the stop process (processing of S58). Note that until the processes of S54 and S56 are completed, the same power as when the ACC power supply is ON is supplied. This makes it possible to change the angle of the RR display 26.

[0067] If the FR seat 1 is in the forward position and the RR display 26 is at an angle other than horizontal tilt (the angle at which the user views the screen) immediately before the ACC power is turned off, the original angle in S54 will be the angle of the RR display 26 immediately before the ACC power is turned off, and therefore the angle of the RR display 26 will not be changed in S54.

[0068] As described above, according to this embodiment, when the ACC power supply is turned off, the horizontal tilt state of the RR display 26 is canceled, so even if the user moves the FR seat 1 when the ACC power supply is turned off, the headrest 4 can be prevented from interfering with the RR display 26.

[0069] <Fourth embodiment> In the fourth embodiment, when the ACC power is turned on, the angle is automatically adjusted according to the state of the RR display 26 immediately before the ACC power was turned off. That is, when the ACC power is turned on, as explained in the third embodiment, the horizontal tilt state is released even if the FR seat 1 is in the forward-most position. Therefore, if the FR seat 1 is in the forward-most position when the ACC power is turned on and the RR display 26 was in the horizontal tilt state immediately before the ACC power was turned off, an operation to return it to the horizontal tilt state is performed. On the other hand, if the FR seat 1 is not in the forward-most position when the ACC power is turned on, the angle is adjusted to the last angle stored other than the horizontal tilt state. Note that if the RR display 26 was in the upright position immediately before the ACC power was turned off (i.e., not in the horizontal tilt state), the angle is stored in memory, and when the ACC power is turned on, the angle is restored to the angle stored in memory. In this case, if the FR seat 1 is in the forward-most position, Even if the RR display 26 is tilted horizontally, the RR display 26 is not tilted horizontally.

[0070] Next, we will explain the process of setting the RR display 26 to a horizontally tilted state when the ACC power is turned on from off. Figure 10 is a sequence diagram showing the overall process of the system 20 when the RR display 26 is set to a horizontally tilted state when the ACC power is turned on. This sequence diagram shows the process when the FR seat 1 is in the forward-most state and the RR display 26 is in a horizontally tilted state immediately before the ACC power is turned off, and when the ACC power is turned on from off from on, the FR seat 1 is in the forward-most state.

[0071] When the ACC power supply is turned ON, the RR display ECU 25 detects this (processing of S61). Next, the RR display ECU 25 executes a startup process (processing of S62) and transmits a startup instruction to the RR display 26, which is an instruction to start the RR display 26 (processing of S63). Furthermore, the RR display ECU 25 reads from the memory 252 the angle of the RR display 26 and the state of the FR seat 1 immediately before the ACC power supply was turned OFF (processing of S64).

[0072] After receiving the start-up instruction, the RR display 26 executes start-up processing (processing of S65), and further reads from memory the angle of the RR display 26 immediately before the ACC power supply was turned off (processing of S66).

[0073] Also, after the ACC power is turned ON, if the FR seat ECU 21 detects that the FR seat 1 is in the frontmost state (processing of S11), it notifies the rear controller 22, the RR display ECU 25, and the RR display 26 that the FR seat 1 is in the frontmost state (processing of S12).

[0074] Furthermore, if the RR display ECU 25 receives a notification that the RR display 26 is in the forward state and the angle of the RR display 26 was in the horizontal tilt state immediately before the ACC power was turned off, a horizontal tilt instruction is sent to the RR display 26 (processing of S15). Furthermore, the RR display 26 sends a headrest upright impossibility notification to the FR seat ECU 21 and the rear controller 22 (processing of S19). The processing from S16 onwards performed by the RR display 26 is the same as that in FIG. 7, and therefore description thereof will be omitted.

[0075] If the RR display 26 is not in a horizontally tilted state immediately before the ACC power is turned OFF, the angle of the RR display 26 is not adjusted when the ACC power is turned ON. Also, if the FR seat 1 is not in the forwardmost position when the ACC power is turned ON, the angle of the RR display 26 is not adjusted when the ACC power is turned ON.

[0076] As described above, according to this embodiment, when the ACC power is turned ON, the RR display 26 is returned to the state it was in immediately before the ACC power was turned OFF, thereby improving user convenience.

[0077] Fifth Embodiment In the fifth embodiment, a process for canceling the horizontally tilted state of the RR display 26 by a user operation, that is, a process for raising the RR display 26, will be described. For example, if the RR display 26 is in a horizontally tilted state, when the driver tries to look at the side mirror, the RR display 26 may block the driver's view, making it difficult to see the side mirror. In such a case, the horizontally tilted state can be canceled by a user operation.

[0078] FIG. 11 is a sequence diagram showing the overall processing of the system 20 when the RR display 26 is raised from a horizontal tilt state. At the start of this sequence diagram, the RR display 26 is 6 is the horizontal tilt state. Note that the same processes as those in the above sequence diagram are assigned the same reference numerals and their explanations are omitted. In addition, in this embodiment, when the RR display 26 is in the horizontal tilt state, if the one-touch horizontal tilt button is pressed again, the horizontal tilt state is canceled.

[0079] When the rear controller 22 detects that the one-touch horizontal tilt button has been pressed (processing of S13), the rear controller 22 sends a horizontal tilt button ON notification, which is a notification indicating that the one-touch horizontal tilt button has been pressed, to the RR display ECU 25 (processing of S14). The one-touch horizontal tilt button may be provided on the FR display 24. Then, when the RR display ECU 25 receives the horizontal tilt button ON notification while the RR display 26 is in a horizontally tilted state, it sends a horizontal tilt OFF instruction, which is an instruction to cancel the horizontally tilted state of the RR display, to the RR display 26 (processing of S34). The processing from this point onwards is the same as that in FIG. 8, and therefore description thereof will be omitted.

[0080] In this way, the user can cancel the horizontal tilt state by pressing the one-touch horizontal tilt button.

[0081] Sixth Embodiment In the sixth embodiment, a process will be described in which the user presses a button (one-touch seat return button) for returning the FR seat 1 from the forward position to its original position to cancel the horizontally tilted state of the RR display 26. Fig. 12 is a sequence diagram showing the overall process of the system 20 when the RR display 26 is raised from the horizontally tilted state. At the start of this sequence diagram, the RR display 26 is in the horizontally tilted state. The same processes as those in the above sequence diagrams are assigned the same reference numerals and their explanations will be omitted.

[0082] When the user presses the one-touch seat return button on the rear controller 22 (processing of S71), a seat return signal is transmitted from the rear controller 22 to the FR seat ECU 21 and the RR display ECU 25 (processing of S72). Note that the one-touch seat return button may also be provided on, for example, the rear controller 22, the FR seat 1, or the FR display 24, and in this case, the seat return signal is transmitted from the device on which the one-touch seat return button is pressed to the FR seat ECU 21 and the RR display ECU 25. This button is not limited to a physical button, and may also be displayed on a screen.

[0083] The FR seat ECU 21 does not move the FR seat 1 until it receives the headrest raising possible notification. Also, upon receiving the seat return signal, the RR display ECU 25 transmits a horizontal tilt OFF command to the RR display 26, which is a command to cancel the horizontal tilt state of the RR display (processing of S34). The subsequent processing up to S42 is the same as in FIG. 8, so a description thereof will be omitted.

[0084] Then, upon receiving the seat return signal and the headrest rising possible notification, the FR seat ECU 21 executes one-touch seat return processing (processing of S73). At this time, the seat is returned to the seat position before it became the foremost state. The seat position before it became the foremost state is stored in the memory 212 of the FR seat ECU 21. Then, when movement of the FR seat 1 starts, the FR seat ECU 21 transmits a foremost state OFF notification to the rear controller 22, the RR display ECU 25, and the RR display 26 (processing of S33).

[0085] As described above, according to this embodiment, when the user returns the state of the FR seat 1 from the forwardmost state with one touch, the FR seat 1 is not moved until the horizontal tilt state is eliminated, thereby preventing the headrest 4 from interfering with the RR display 26.

[0086] Seventh Embodiment In the seventh embodiment, the tilt operation when the FR seat 1 is in the normal state will be described. Fig. 13 is a sequence diagram showing the overall processing of the system 20 when the FR seat 1 is in the normal state. At the start of this sequence diagram, the FR seat 1 is in the normal state, and the RR display 26 is in the raised state.

[0087] When the user performs a tilt operation on the rear controller 22 (processing of S80), a tilt operation command is transmitted from the rear controller 22 to the RR display ECU 25 and the RR display 26 (processing of S81). The tilt operation command is a command to tilt the RR display 26. This command includes information regarding the tilt direction. The tilt range is limited to the range shown in FIG. 1. Then, the RR display 26 executes an operation to tilt the RR display 26 in the direction according to the user's operation (processing of S82). The tiltable range at this time is the range shown in FIG. 1, which corresponds to the first range. Therefore, the range to which the RR display 26 can be tilted is limited to a range that does not interfere with the headrest 4. This restriction remains unchanged until a forefront state notification (see S12) is received.

[0088] Furthermore, when the user releases the tilt operation in the rear controller 22 (processing of S83), a tilt operation release instruction is transmitted from the rear controller 22 to the RR display ECU 25 and the RR display 26 (processing of S84). The tilt operation release instruction is an instruction to stop the tilt operation of the RR display 26. Then, the RR display 26 stops the operation of tilting the RR display 26 (processing of S85). Then, a status notification and a tilt state notification are transmitted from the RR display 26 to the RR display ECU 25 (processing of S86 and S87). Then, the RR display ECU 25, having received the tilt state notification, transmits a headrest raising possible notification to the FR seat ECU 21 and the rear controller 22. That is, since the RR display 26 is limited to the range shown in FIG. 1, there is no interference even when the headrest 4 is raised.

[0089] As described above, according to this embodiment, the tilt range in the tilt operation is limited even in the normal state, so that interference between the RR display 26 and the headrest 4 can be suppressed.

[0090] <Other embodiments> The above-described embodiment is merely an example, and the present disclosure can be implemented with appropriate modifications within the scope that does not deviate from the gist of the disclosure.

[0091] The processes and means described in this disclosure can be freely combined and implemented as long as no technical contradiction occurs.

[0092] Furthermore, a process described as being performed by one device may be shared and executed by multiple devices. Alternatively, a process described as being performed by different devices may be executed by a single device. In a computer system, the hardware configuration (server configuration) by which each function is realized can be flexibly changed. For example, the functions of the FR seat ECU 21, rear controller 22, RR seat ECU 23, FR display 24, RR seat ECU 25, and RR display 26 may be included in other devices. It is not necessary to provide all of the FR seat ECU 21, rear controller 22, RR seat ECU 23, FR display 24, RR seat ECU 25, and RR display 26.

[0093] The present disclosure can also be realized by providing a computer program implementing the functions described in the above embodiments to a computer, and having one or more processors in the computer read and execute the program. Such a computer program may be provided to the computer via a non-transitory computer-readable storage medium connectable to the computer's system bus or via a network. Non-transitory computer-readable storage media include, for example, any type of disk, such as a magnetic disk (e.g., a floppy disk, a hard disk drive (HDD), etc.), an optical disk (e.g., a CD-ROM, a DVD disk, a Blu-ray disk), a read-only memory (ROM), a random-access memory (RAM), an EPROM, an EEPROM, a magnetic card, a flash memory, an optical card, or any type of medium suitable for storing electronic instructions. [Explanation of symbols]

[0094] 1 FR seat 2 Seat 3 Backrest 4 Headrest 20 Systems 21 FR seat ECU 22 Rear Controller 23RR seat ECU 24FR display 25 RR Display ECU 26 RR Display

Claims

1. An information processing device provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest at an upper portion of the seat, When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; a control unit that executes the the second range is a range in which the display can be tilted until the display is horizontal; Information processing device.

2. An information processing device provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest above the seat, When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; a control unit that executes the The control unit When the headrest is in the second state and the display is tilted to the second range, the headrest is prohibited from being put into the first state. Information processing device.

3. An information processing device provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest above the seat, When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; a control unit that executes the The control unit When there is a request to change the headrest to the first state from a state in which the headrest is in the second state and the display is tilted to the second range, the headrest is changed to the first state after tilting the display from the second range to the first range. Information processing device.

4. The control unit When tilting the display from the second range to the first range, the display is returned to the last tilt state in the first range. The information processing device according to claim 3 .

5. An information processing device provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest at the top of the seat, When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; a control unit that executes the The control unit When the headrest is in the second state and the display is tilted to the second range, if it is detected that an accessory power source of the vehicle has been turned off, the display is tilted from the second range to the first range. Information processing device.

6. The control unit When tilting the display from the second range to the first range, the display is returned to the last tilt state in the first range. The information processing device according to claim 5 .

7. The control unit When the on-state of the accessory power supply of the vehicle is detected, the headrest is in the second state and the last time the accessory power supply was on, when the display has been tilted to the second range, tilting the display from the first range to the second range; 7. The information processing device according to claim 5 or 6.

8. An information processing device provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest at the top of the seat, When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; a control unit that executes the The control unit when there is a request to tilt the display from the second range to the first range, permitting the headrest to be changed from the second state to the first state after the display has been tilted from the second range to the first range; Information processing device.

9. The control unit determining whether there is a request to tilt the display from the second range to the first range based on an input to an input / output unit corresponding to a driver of the vehicle; The information processing device according to claim 8 .

10. An information processing device provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest above the seat, When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; a control unit that executes the The control unit When the display is tilted to the second range, the screen of the display is turned off. Information processing device.

11. The control unit When tilting the display from the second range to the first range, the screen state of the display is returned to the last state when the display was in the first range. The information processing device according to claim 10.

12. The second range is a range in which the display interferes with the headrest when the headrest is in the first state. The information processing device according to claim 1 .

13. An information processing method executed by a computer provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest at an upper portion of the seat, the method comprising: The computer When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; Run the second range is a range in which the display can be tilted until the display is horizontal; Information processing methods.

14. An information processing method executed by a computer provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest above the seat, comprising: The computer When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; Run The computer When the headrest is in the second state and the display is tilted to the second range, the headrest is prohibited from being put into the first state. Information processing methods.

15. An information processing method executed by a computer provided in a vehicle in which a display is attached to a seat at a position rearward of a headrest above the seat, comprising: The computer When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; Run The computer When there is a request to change the headrest to the first state from a state in which the headrest is in the second state and the display is tilted to the second range, the headrest is changed to the first state after tilting the display from the second range to the first range. Information processing methods.

16. The computer When tilting the display from the second range to the first range, the display is returned to the last tilt state in the first range. The information processing method according to claim 15.

17. A display is attached to the seat at a position rearward of the headrest at the top of the seat. An information processing method executed by a computer provided in a vehicle, The computer When the headrest is in a first state in which the headrest is not reclined to a predetermined position in the forward direction of the vehicle, a range in which the display is tilted is set to a first range in which the display does not interfere with the headrest in the first state; When the headrest is in a second state in which it is reclined to the predetermined position, a range in which the display is tilted is set to a second range that includes a range that is wider in the forward direction than the first range; Run The computer When the headrest is in the second state and the display is tilted to the second range, if it is detected that an accessory power source of the vehicle has been turned off, the display is tilted from the second range to the first range. Information processing methods.

18. The second range is a range in which the display interferes with the headrest when the headrest is in the first state.

18. The information processing method according to any one of claims 13 to 17.

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