Directional display control device, directional display method, and program

Abstract

To provide a directional display control device capable of clearly indicating the direction of travel of a moving object with vibrations even when vibrations occur due to unevenness on the road.SOLUTION: A control unit 20 includes: a travel instruction direction acquisition unit 22 that acquires the instruction direction of travel in which a moving object should travel; a vibration control unit 29 that controls the vibration of actuators 19 arranged as a pair on the left and right; and a moving body vibration detection unit 21 that detects moving body vibration that is the vibration received from the road surface when the moving body moves. The vibration control unit 29 causes the actuator 19 to vibrate by the phase and magnitude on the basis of the moving body vibration detected by the moving body vibration detection unit 21 according to the travel instruction direction acquired by the travel direction acquisition unit 22.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a direction presentation control device, a direction presentation method, and a program. [Background technology]

[0002] A technology has been disclosed that provides route guidance using a first vibration that is generated at a timing synchronized with the occurrence timing of periodic information that occurs periodically while a user is moving along a route, and a second vibration that is generated in the period between the occurrence timings (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-046335 Summary of the Invention [Problem to be solved by the invention]

[0004] While the moving object is moving, the moving object may vibrate irregularly due to unevenness of the road surface, etc. When the moving object vibrates due to unevenness of the road surface, etc., there is a risk that the user may have difficulty perceiving the vibration generated to indicate the direction in which the moving object should proceed.

[0005] The present disclosure has been made in consideration of the above, and aims to clearly indicate the direction in which a moving object should travel by using vibrations, even when vibrations are generated due to unevenness in the road surface, etc. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the objective, the direction presentation control device of the present disclosure comprises a travel instruction direction acquisition unit that acquires a travel instruction direction, which is the direction in which a moving body should travel, a vibration control unit that controls the vibration of vibration units arranged as a pair on the left and right, and a moving body vibration detection unit that detects moving body vibration, which is vibration that the moving body receives from the road surface when moving, and the vibration control unit vibrates the vibration unit with a phase and magnitude based on the moving body vibration detected by the moving body vibration detection unit, in accordance with the travel instruction direction acquired by the travel instruction direction acquisition unit.

[0007] The direction presentation method according to the present disclosure includes a travel instruction direction acquisition step of acquiring a travel instruction direction, which is the direction in which a moving body should travel, a vibration control step of controlling vibration of vibration units arranged as a pair on the left and right, and a moving body vibration detection step of detecting moving body vibration, which is vibration that the moving body receives from the road surface when moving, and the vibration control step vibrates the vibration units with a phase and magnitude based on the moving body vibration detected by the moving body vibration detection step, in accordance with the travel instruction direction acquired by the travel instruction direction acquisition step.

[0008] The program of the present disclosure includes a travel instruction direction acquisition step of acquiring a travel instruction direction, which is the direction in which a moving body should travel, a vibration control step of controlling vibration of vibration units arranged as a pair on the left and right, and a moving body vibration detection step of detecting moving body vibration, which is vibration that the moving body receives from the road surface when moving, and the vibration control step causes a computer operating as a direction presentation control device to vibrate the vibration units with a phase and magnitude based on the moving body vibration detected by the moving body vibration detection step, in accordance with the travel instruction direction acquired by the travel instruction direction acquisition step. Effect of the Invention

[0009] According to the present disclosure, it is possible to provide an advantageous effect that even when vibrations occur due to unevenness of the road surface, the direction in which the moving object should travel can be clearly indicated by the vibrations. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram showing an example of the configuration of a moving body. [Diagram 2] FIG. 2 is a partially enlarged view of the periphery of the handle of the vehicle. [Diagram 3] FIG. 3 is a block diagram illustrating an example of the configuration of a direction presentation system according to the embodiment. [Figure 4] FIG. 4 is a flowchart illustrating an example of processing in the direction presentation system according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of a direction presentation control device, a direction presentation method, and a program according to the present disclosure will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the following embodiments.

[0012] [Embodiment] <Directional indication system> FIG. 1 is a schematic diagram showing an example of the configuration of a moving body. FIG. 2 is a partially enlarged view of the periphery of the handle of the moving body. FIG. 3 is a block diagram showing an example of the configuration of a direction presentation system according to an embodiment. During route guidance, the direction presentation system 1 vibrates the side in which the moving body 100 should travel, thereby presenting the direction in which the moving body 100 should travel to the user who is a passenger of the moving body 100. More specifically, the direction presentation system 1 is a system that presents the direction in which the moving body 100 should travel to the user of the moving body 100 by vibrating actuators 19, which are vibration units arranged as a pair on the left and right.

[0013] In this embodiment, the user of the mobile object 100 is guided along a route by an external navigation system, for example, a navigation system application of an electronic device such as a portable smartphone.

[0014] The moving body 100 is, for example, a micro (ultra-small) mobility such as a kickboard or a bicycle. The moving body 100 may be, for example, an electric vehicle such as a wheelchair or a senior car. The moving body 100 refers to an object in which the user can easily feel the vibration of the body caused by the unevenness of the road surface. In the following embodiment, a case will be described in which the moving body 100 is a kickboard as shown in FIG. 1.

[0015] The direction presentation system 1 includes an acceleration sensor 11, a display unit 17, a speaker 18, a right actuator (vibration unit) 19R, a left actuator (vibration unit) 19L, and a direction presentation control device (hereinafter, referred to as a "control device") 20. In this embodiment, the display unit 17 and the speaker 18 are not essential components.

[0016] The acceleration sensor 11 acquires sensor data capable of detecting moving body vibrations occurring in the moving body 100 due to unevenness of the road surface when the moving body 100 moves. The acceleration sensor 11 is a sensor that detects acceleration in, for example, three axial directions. The three axial directions are the front-rear, left-right, and up-down directions of the moving body 100. Vibrations of the moving body 100 can be detected by acceleration in the three axial directions. The acceleration sensor 11 is disposed, for example, on the step 101 of the moving body 100 or near the right actuator 19R and the left actuator 19L. The acceleration sensor 11 outputs sensor data, which is the detection result, to the moving body vibration detection unit 21 of the control device 20.

[0017] The display unit 17 is, for example, a display device specific to the direction presentation system 1, or a display device of an electronic device carried by a user. The display unit 17 is, for example, a display including a liquid crystal display or an organic EL (Electro-Luminescence) display. The display unit 17 is disposed, for example, on the handle 102 of the moving object 100. The display unit 17 displays an image based on a video signal output from the display control unit 27 of the control device 20. The display unit 17 displays an image presenting the direction in which the moving object 100 should proceed.

[0018] The image showing the direction in which the moving object 100 should travel is preferably an image of a simple shape that the user of the moving object 100 can confirm without staring at the display unit 17. The image showing the direction in which the moving object 100 should travel is, for example, an image of an arrow indicating the travel direction. In addition to the image of the arrow, there may be an image of a meter showing the distance to a right or left turn point.

[0019] The speaker 18 may be, for example, a sound output device specific to the direction presentation system 1, or a sound output device of an electronic device carried by the user. The speaker 18 may be, for example, a speaker attached to the moving body 100, or an electronic device, earphones, or headphones used by the user. The speaker 18 is disposed, for example, on the handle 102 of the moving body 100. The speaker 18 outputs sound based on a sound signal output from the sound output control unit 28 of the control device 20. The speaker 18 outputs sound presenting the direction in which the moving body 100 should proceed.

[0020] The actuator 19 is a drive mechanism that generates vibrations. The actuator 19 is a drive mechanism that vibrates a portion of the moving object 100 that the user touches. In this embodiment, the actuator 19 vibrates the surface of the handle 102. The actuator 19 presents to the user, through vibrations, the direction in which the moving object 100 should travel, which is acquired by the travel instruction direction acquisition unit 22 of the control device 20. The actuator 19 is controlled to drive and stop driving based on a control signal from the vibration control unit 29 of the control device 20, thereby controlling the vibration of the handle 102.

[0021] The actuators 19 are arranged in a pair on the left and right sides. For example, the actuators 19 are arranged in a pair on the right handle 102R and the left handle 102L. The actuators 19 include a right actuator 19R and a left actuator 19L.

[0022] The right actuator 19R is disposed on the right handle 102R. The right actuator 19R vibrates the right handle 102R. For example, when the moving body 100 should move to the right, the right actuator 19R vibrates the right handle 102R to present the moving body 100 with the direction to move to the user.

[0023] The left actuator 19L is disposed on the left handle 102L. The left actuator 19L vibrates the left handle 102L. For example, when the moving body 100 should move leftward, the left actuator 19L vibrates the left handle 102L to present the moving body 100 with the direction to move to the user.

[0024] <Directional indication control device> The control device 20 is implemented as a terminal device installed in the moving object 100 or an electronic device carried by a user. The control device 20 is, for example, a calculation processing device constituted by a CPU (Central Processing Unit) and the like. The control device 20 executes instructions included in a program stored in a storage unit (not shown). The control device 20 includes a moving object vibration detection unit 21, a travel instruction direction acquisition unit 22, a display control unit 27, an audio output control unit 28, and a vibration control unit 29. In this embodiment, the display control unit 27 and the audio output control unit 28 are not essential components.

[0025] The moving body vibration detection unit 21 detects moving body vibration, which is vibration received from the road surface when the moving body 100 moves. The moving body vibration detection unit 21 detects rattling of the moving body 100 caused by unevenness of the road surface when the moving body 100 moves. The moving body vibration detection unit 21 detects moving body vibration based on sensor data acquired from the acceleration sensor 11.

[0026] The travel instruction direction acquisition unit 22 acquires a travel instruction direction in which the mobile object 100 should travel. More specifically, the travel instruction direction acquisition unit 22 acquires information indicating the direction in which the mobile object 100 should travel (hereinafter referred to as "travel instruction direction information") from an external navigation system via, for example, a communication unit (not shown). The travel instruction direction acquisition unit 22 acquires the travel instruction direction information at a timing when the route guidance function of the navigation system presents the user with the direction in which to travel, for example, when a right or left turn point is approaching.

[0027] The travel direction information is, for example, information corresponding to various kinds of guidance regarding directions presented to a user during route guidance in a navigation system. The travel direction information is, for example, information indicating the direction to travel at a branch point such as a right or left turn point, or information indicating the direction of a destination as viewed from a current location. The travel direction information may include, for example, information indicating the distance to a right or left turn point, or the distance to a destination.

[0028] The display control unit 27 controls the display of an image on the display unit 17. The display control unit 27 outputs a video signal that causes the image to be output to the display unit 17. More specifically, the display control unit 27 causes the display unit 17 to display an image presenting an instruction direction for traveling of the moving object 100.

[0029] The audio output control unit 28 controls the output of audio from the speaker 18. The audio output control unit 28 outputs an audio signal for outputting audio from the speaker 18. The audio output control unit 28 outputs an audio signal for outputting audio presenting a travel instruction direction of the moving body 100 from the speaker 18.

[0030] The vibration control unit 29 controls the vibration of the actuator 19. The vibration control unit 29 outputs a control signal that controls whether the actuator 19 starts vibrating or stops vibrating.

[0031] The vibration control unit 29 presents the direction in which the moving body 100 should travel by making the user sense vibrations in the direction in which the moving body 100 should travel. When the vibration control unit 29 acquires travel instruction direction information by the travel instruction direction acquisition unit 22, it vibrates the actuator 19 corresponding to the travel instruction direction. This vibration is called a presentation vibration. For example, when a right turn point is approaching and the vibration control unit 29 acquires travel instruction direction information indicating "right", it outputs a control signal to the right actuator 19R to vibrate the right handle 102R of the moving body 100. For example, when a left turn point is approaching and the vibration control unit 29 acquires travel instruction direction information indicating "left", it outputs a control signal to the left actuator 19L to vibrate the left handle 102L of the moving body 100.

[0032] The presentation vibration is a vibration that presents the user with the travel direction instruction. The presentation vibration has a different period or waveform from a moving body vibration caused by a bumpy road surface or the like, and it is preferable that the presentation vibration can be distinguished from the moving body vibration in terms of waveform.

[0033] In this embodiment, for example, while the travel direction is presented by vibration, the vibration control unit 29 controls the phase and magnitude of the vibration of the actuator 19 corresponding to the travel direction so that the sum of the vibration of the actuator 19 and the moving body vibration detected by the moving body vibration detection unit 21 becomes a predetermined reference value. More specifically, the vibration control unit 29 controls the vibration of the actuator 19 so that the sum of the vibration of the handle 102 caused by the detected moving body vibration and the vibration of the actuator 19 becomes constant at all times. The vibration control unit 29 outputs a control signal to the actuator 19 so that the actuator 19 vibrates in the same phase as the phase of the moving body vibration detected by the moving body vibration detection unit 21 and with a magnitude that is the difference between a predetermined reference value and the magnitude of the detected vibration.

[0034] The vibration control unit 29 vibrates the actuator 19 so as to cancel the moving body vibration detected by the moving body vibration detection unit 21, for example, in accordance with the travel instruction direction acquired by the travel instruction direction acquisition unit 22. The vibration control unit 29 outputs a control signal to the actuator 19 so as to vibrate with a vibration that is the opposite phase and has the same magnitude as the moving body vibration detected by the moving body vibration detection unit 21. More specifically, the vibration of the actuator 19 is controlled so that the vibration of the handle 102 caused by the detected moving body vibration and the vibration of the actuator 19 is always zero.

[0035] At this time, it is preferable that the vibration control unit 29 vibrates the actuator 19 corresponding to the direction opposite to the travel instruction direction acquired by the travel instruction direction acquisition unit 22 so as to cancel the moving body vibration detected by the moving body vibration detection unit 21. For example, when the vibration control unit 29 acquires travel instruction direction information indicating "left", it outputs a control signal to the left actuator 19L for vibrating the left handle 102L of the moving body 100 so as to cancel the moving body vibration. For example, when the vibration control unit 29 acquires travel instruction direction information indicating "right", it outputs a control signal to the right actuator 19R for vibrating the right handle 102R of the moving body 100 so as to cancel the moving body vibration.

[0036] For example, the vibration control unit 29 vibrates the actuator 19 corresponding to the travel instruction direction acquired by the travel instruction direction acquisition unit 22 so as to present the travel instruction direction after canceling the moving body vibration detected by the moving body vibration detection unit 21. In this case, the vibration control unit 29 outputs a control signal to the right actuator 19R so as to vibrate the actuator 19 corresponding to the travel instruction direction with the sum of a vibration that is in the opposite phase to the moving body vibration and has the same vibration magnitude as the moving body vibration, and a presentation vibration that presents the travel instruction direction. More specifically, the vibration of the actuator 19 is controlled so that the vibration of the handle 102 caused by the detected moving body vibration and the vibration of the actuator 19 is always only the vibration of the actuator 19.

[0037] <Information processing in direction display systems> Next, information processing in the direction presentation system 1 will be described with reference to Fig. 4. Fig. 4 is a flowchart showing an example of processing in the direction presentation system according to the embodiment. Before starting movement by the moving body 100, the user starts an external navigation system to start route guidance. In addition, before starting movement by the moving body 100, the direction presentation system 1 is started. When the direction presentation system 1 is started, the processing of the flowchart shown in Fig. 4 is started.

[0038] The control device 20 starts detecting moving body vibrations and acquiring travel instruction directions (step S101). More specifically, the control device 20 starts a process of detecting moving body vibrations, which are vibrations that the moving body 100 receives from the road surface while moving, using the moving body vibration detection unit 21 based on sensor data acquired from the acceleration sensor 11. The control device 20 starts a process of acquiring travel instruction direction information from an external navigation system using the travel instruction direction acquisition unit 22. The control device 20 proceeds to step S102.

[0039] The control device 20 determines whether the moving body 100 will turn right (step S102). More specifically, when the control device 20 acquires information indicating that the instructed traveling direction is right from the instructed traveling direction acquisition unit 22, the control device 20 determines that the moving body 100 will turn right. When the control device 20 determines that the moving body 100 will turn right (Yes in step S102), the control device 20 proceeds to step S103. When the control device 20 does not determine that the moving body 100 will turn right (No in step S102), the control device 20 proceeds to step S105.

[0040] When it is determined that the moving object 100 will turn right (Yes in step S102), the control device 20 presents the right turn by display and audio (step S103). More specifically, the control device 20 causes the display control unit 27 to display an arrow image indicating a right turn on the display unit 17. The control device 20 causes the audio output control unit 28 to output audio indicating a right turn from the speaker 18. The control device 20 proceeds to step S104.

[0041] The control device 20 vibrates the right handle 102R and cancels the vibration of the left handle 102L (step S104). More specifically, the control device 20 outputs a control signal to the right actuator 19R, via the vibration control unit 29, for presenting and vibrating the right handle 102R of the moving body 100. The control device 20 outputs a control signal to the left actuator 19L, via the vibration control unit 29, for vibrating the left handle 102L of the moving body 100 so as to cancel the moving body vibration. The control device 20 proceeds to step S108.

[0042] If the control device 20 does not determine that the moving body 100 will turn right (No in step S102), the control device 20 determines whether or not the moving body 100 will turn left (step S105). More specifically, if the control device 20 acquires information indicating that the instructed traveling direction is left by the instructed traveling direction acquisition unit 22, the control device 20 determines that the moving body 100 will turn left. If the control device 20 determines that the moving body 100 will turn left (Yes in step S105), the control device 20 proceeds to step S106. If the control device 20 does not determine that the moving body 100 will turn left (No in step S105), the control device 20 proceeds to step S108.

[0043] When it is determined that the moving object 100 will turn left (Yes in step S105), the control device 20 presents the left turn by display and audio (step S106). More specifically, the control device 20 causes the display control unit 27 to display an arrow image indicating a left turn on the display unit 17. The control device 20 causes the audio output control unit 28 to output audio indicating a left turn from the speaker 18. The control device 20 proceeds to step S107.

[0044] The control device 20 vibrates the left handle 102L and cancels the vibration of the right handle 102R (step S104). More specifically, the control device 20 outputs a control signal to the left actuator 19L, via the vibration control unit 29, for presenting and vibrating the left handle 102L of the moving body 100. The control device 20 outputs a control signal to the right actuator 19R, via the vibration control unit 29, for vibrating the right handle 102R of the moving body 100 so as to cancel the moving body vibration. The control device 20 proceeds to step S108.

[0045] The control device 20 determines whether or not to end this process (step S108). The control device 20 determines to end this process when an end operation is detected, when the destination is reached, or the like. When the control device 20 determines to end the process (Yes in step S108), it ends the process of this flowchart. When the control device 20 does not determine to end the process (No in step S108), it executes the process of step S102 again.

[0046] <Effects> As described above, in this embodiment, the actuator 19 is vibrated so that the handle 102 vibrates with the sum of the detected moving body vibration and the presentation vibration for presenting the moving body direction in accordance with the moving body 100's moving direction, thereby making it possible to present the moving body 100's moving direction as a direction in which the user always feels a constant vibration. Also, in this embodiment, the actuator 19 in the opposite direction to the moving body 100's moving direction is vibrated so as to cancel the detected moving body vibration in accordance with the moving body 100's moving direction, thereby making it possible to present a direction other than the moving body 100's moving direction as a direction in which the user does not feel vibration. Also, in this embodiment, the actuator 19 is vibrated with a vibration that cancels the detected moving body vibration and presents the moving body 100's moving direction in accordance with the moving body 100's moving direction, thereby making it possible to present the moving body 100's moving direction as a direction in which the user feels vibration other than the moving body vibration due to unevenness of the road surface or the like. In this embodiment, even if the moving body vibrates due to unevenness of the road surface, etc., the direction in which the moving body 100 should proceed can be presented by controlling the vibration of the actuator 19 so that the phase and magnitude of the vibration are easily felt by the user.

[0047] In this embodiment, the actuator 19 corresponding to the direction opposite to the direction in which the moving body 100 should travel is vibrated so as to cancel the detected moving body vibration. According to this embodiment, it is possible to cancel the moving body vibration caused by the unevenness of the road surface in the direction opposite to the direction in which the moving body 100 should travel. In this embodiment, even if there is vibration caused by the unevenness of the road surface, it is possible to present the direction by the vibration so that the user can easily sense it.

[0048] In this embodiment, while the direction to travel is presented by vibration, the phase and magnitude of the vibration of the actuator 19 corresponding to the direction to travel are controlled so that the sum of the vibration of the actuator 19 and the vibration of the moving body becomes a predetermined reference value. This embodiment can present the direction by vibration so that the user can easily sense it.

[0049] Each component of the illustrated direction presentation system is a functional concept, and does not necessarily have to be physically configured as illustrated. In other words, the specific form of each device is not limited to that shown in the figure, and all or part of the device may be functionally or physically distributed or integrated in any unit depending on the processing load and usage status of each device.

[0050] The configuration of the direction presentation system is realized, for example, as software, by a program loaded into a memory. In the above embodiment, the configuration is described as a functional block realized by the cooperation of these hardware and software. In other words, these functional blocks can be realized in various forms by only hardware, only software, or a combination of these.

[0051] The components described above include those that a person skilled in the art can easily imagine and those that are substantially the same. Furthermore, the configurations described above can be appropriately combined. Furthermore, various omissions, substitutions, or modifications of the configurations are possible without departing from the scope of the present invention.

[0052] In the above description, the direction display system 1 has been described as including the acceleration sensor 11, but is not limited thereto as long as it is capable of detecting the vibration of a moving body. The direction display system 1 may detect the vibration of a moving body by a gyro sensor.

[0053] In the above description, the moving body is described as a micromobility or the like, but the moving body may be a pedestrian, and the present invention may also be applied to a pedestrian. For example, the vibration of the moving body in the sole of a shoe worn by a pedestrian may be detected, and the sole may be vibrated or the vibration may be canceled.

[0054] In the above description, the actuator 19 is described as being disposed on a moving body, but is not limited thereto. The actuator 19 may be a driving mechanism attached to the user's body. The actuator 19 may be, for example, a right actuator 19R attached to the user's right arm and a left actuator 19L attached to the user's left arm.

[0055] In the above, the moving body vibration is canceled when the direction to travel is presented, but this is not limited to the above. When the moving body is moving straight, for example, the moving body vibration may be canceled when the direction to travel is not presented. This can improve the comfort of the moving body when traveling.

[0056] In the above description, the travel instruction direction acquisition unit 22 has been described as acquiring information indicating the direction in which the moving body 100 should travel from an external navigation system, but is not limited to this. The direction presentation control device 20 may be a part of a navigation system mounted on the moving body 100, and the travel instruction direction acquisition unit 22 may acquire the direction in which to travel from this navigation system.

[0057] In the above description, the vibration control unit 29 has been described as vibrating the actuator 19 corresponding to the direction in which the vehicle should travel or the direction opposite to the direction in which the vehicle should travel when the travel direction information is acquired by the travel direction acquisition unit 22. When the travel direction information acquired by the travel direction acquisition unit 22 indicates going straight or making a U-turn, the vibration control unit 29 may present an appropriate direction in which the vehicle should travel by predetermining a pattern for vibrating the actuator 19. When the intersection in the direction in which the vehicle should travel is a five-way intersection and the direction in which the vehicle should travel or the direction opposite to the direction in which the vehicle should travel cannot be presented as an appropriate direction, the appropriate direction in which the vehicle should travel may be presented by a vibration pattern in the same manner. [Explanation of symbols]

[0058] One-way display system 11 Acceleration Sensor 17 Display 18 Speaker 19 Actuator (vibration part) 19L Left actuator (vibration part) 19R Right actuator (vibration part) 20 Control device (directional display control device) 21 Moving object vibration detection unit 22 Travel direction acquisition unit 27 Display control section 28 Audio output control section 29 Vibration control section 100 Mobile 101 Steps 102 Handle

Claims

1. a travel direction acquisition unit that acquires a travel direction in which the moving object should travel; a vibration control unit that controls vibration of the vibration units arranged as a pair on the left and right; a moving body vibration detection unit that detects moving body vibrations that the moving body receives from a road surface while moving; Equipped with the vibration control unit vibrates the vibration unit with a phase and a magnitude based on the moving body vibration detected by the moving body vibration detection unit, in accordance with the travel instruction direction acquired by the travel instruction direction acquisition unit. Directional display control device.

2. The vibration control unit vibrates the vibration unit corresponding to a direction opposite to a direction in which the moving body should move so as to cancel the moving body vibration detected by the moving body vibration detection unit. The direction indication control device according to claim 1 .

3. the vibration control unit controls a phase and a magnitude of the vibration of the vibration unit corresponding to the travel instruction direction so that a sum of the vibration of the vibration unit and the vibration of the moving body becomes a predetermined reference value while the travel instruction direction is presented by vibration. The direction indication control device according to claim 1 or 2.

4. a travel direction acquisition step of acquiring a travel direction in which the moving body should travel; a vibration control step of controlling vibration of the vibration units arranged as a pair on the left and right; a moving body vibration detection step of detecting moving body vibration, which is vibration received by the moving body from a road surface while the moving body is moving; Including, the vibration control step causes the vibration unit to vibrate with a phase and a magnitude based on the moving body vibration detected in the moving body vibration detection step, in accordance with the travel instruction direction acquired in the travel instruction direction acquisition step. Direction presentation method.

5. a travel direction acquisition step of acquiring a travel direction in which the moving body should travel; a vibration control step of controlling vibration of the vibration units arranged as a pair on the left and right; a moving body vibration detection step of detecting moving body vibration, which is vibration received by the moving body from a road surface while the moving body is moving; Including, the vibration control step causes the vibration unit to vibrate with a phase and a magnitude based on the moving body vibration detected in the moving body vibration detection step, in accordance with the travel instruction direction acquired in the travel instruction direction acquisition step. A program for causing a computer operating as a direction display control device to execute the above.

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