Fan unit, tactile presentation device, air control device, air control method, and vehicle

Abstract

This fan unit is equipped with: a fan that is capable of blowing air from a circumferential part thereof; and a cover part that is capable of opening a blowout section formed as a portion of the circumferential part of the fan and that changes the opening range of the blowout section. In this air control method, a cover part that is capable of opening a blowout section formed as a portion of a circumferential part of the fan capable of blowing air from the circumferential part and that changes the opening range of the blowout section changes the range of coverage of the circumferential part of the fan, thereby changing the opening range of the blowout section.

Description

Fan unit, tactile presentation device, wind control device, wind control method, and vehicle

[0001] The present disclosure relates to a fan unit having a centrifugal fan, a tactile presentation device, a wind control device, a wind control method, and a vehicle having a tactile presentation device.

[0002] It is known to use a fan as a wind source for generating wind. Patent Document 1 discloses a vehicle air conditioning control device that adjusts the amount of airflow to two air outlets. Patent Document 2 discloses a blower that changes the ratio of the amount of airflow to two air outlets. Patent Document 3 discloses a technology for controlling the direction of airflow by oscillating a fan casing that houses a centrifugal fan.

[0003] There is also a known technology that uses a fan to provide a desired airflow to the user. Patent Document 4 provides an automatic air conditioner that not only provides a comfortable air-conditioning feeling to vehicle occupants, but also provides the vehicle occupants, particularly the driver, with a sense of realism suited to the driving location or driving conditions. When the vehicle is turning on a curved road, the airflow distribution to the left and right of the air blown from four variable airflow direction grilles toward the vehicle occupants, particularly the driver, is increased or decreased to create a drifting feeling when driving around a curve.

[0004] Japanese Patent Laid-Open No. 11-139138 Japanese Patent Laid-Open No. 2008-88985 International Publication No. 2020 / 170303 Japanese Patent Laid-Open No. 2003-94928

[0005] The range of the airflow generated by a fan is fixed, and the fan rotation speed (wind speed) is often the control parameter. To change the range of the airflow generated by a fan, measures such as using multiple fans or using multiple airflow direction-changing grilles as in Patent Document 4 are taken, but these may result in an increase in the size of the device.

[0006] In view of the above circumstances, an object of the present disclosure is to improve the degree of freedom in presenting wind without increasing the size of the device.

[0007] A fan unit according to one embodiment of the present disclosure comprises a fan capable of blowing air from a circumferential portion, and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan and changing the opening range of the blowing portion.

[0008] According to this embodiment, the blowing range of the blowing unit can be controlled simply by changing the opening range of the cover unit, thereby improving the degree of freedom in presenting wind without increasing the size of the device.

[0009] The cover portion may change the range of coverage of the circumferential portion of the fan, thereby changing the open range of the blowout portion.

[0010] According to this embodiment, the blowing range of the blowing unit can be controlled simply by changing the area covered by the circumferential portion of the fan, thereby improving the degree of freedom in presenting the wind without increasing the size of the device.

[0011] The cover portion may change the opening range of the blowout portion steplessly in both directions between a maximum value and a minimum value.

[0012] This allows for greater freedom in presenting the wind.

[0013] The cover portion may have a movable cover that changes the range of coverage of the circumferential portion by being displaced along the circumferential portion of the fan, thereby changing the open range of the blowing portion in the circumferential direction.

[0014] According to this embodiment, the blowing range of the blowing section can be controlled simply by displacing the movable cover.

[0015] The movable cover may be displaced along the circumferential portion of the fan to control the direction of air blown from the blowing portion.

[0016] According to this embodiment, the direction and speed of air blown from the blowing portion can be controlled simply by displacing the movable cover.

[0017] The cover portion may include a fixed cover that houses the fan and has a closing portion that covers a portion of the circumferential portion of the fan and an opening portion that opens the remaining portion of the circumferential portion of the fan, and a movable cover that covers another portion of the circumferential portion of the fan and is displaceable relative to the fixed cover to change the range that faces the closing portion, thereby changing the open range of the blowing portion.

[0018] According to this embodiment, the blowing range of the blowing unit can be controlled simply by rotating the movable cover, thereby improving the degree of freedom in presenting the wind without increasing the size of the device.

[0019] The fixed cover may house the movable cover and the fan.

[0020] The fixed cover can also function as a housing for storage.

[0021] The open range may be at a minimum when the cover portion covers the entire circumferential portion of the fan.

[0022] According to this embodiment, the blowing range of the blowing unit can be controlled simply by changing the area covered by the circumferential portion of the fan, thereby improving the degree of freedom in presenting the wind without increasing the size of the device.

[0023] The cover portion may control a direction of air being blown out from the blowing portion.

[0024] This allows the direction of airflow from the air outlet to be controlled using only the cover, improving the flexibility of airflow presentation without increasing the size of the device.

[0025] The cover portion may change the blowing direction by changing the opening range.

[0026] This allows the cover section alone to improve the degree of freedom in the direction of air blown from the blowing section, without increasing the size of the device.

[0027] The fan unit may further include a rotation control unit that rotates the fan unit.

[0028] This further improves the degree of freedom in the blowing direction from the blowing section.

[0029] The rotation control section may rotate the fan unit in a circumferential direction so as to maintain a constant blowing direction that changes with a change in the opening range.

[0030] This improves the degree of freedom in the blowing direction from the blowing section.

[0031] The cover portion may change an opening range of the blowout portion to change a blowout range, a blowout direction, and a flow rate.

[0032] This allows for greater freedom in wind presentation.

[0033] The movable cover may be a single piece.

[0034] This makes it possible to avoid an increase in the size of the device.

[0035] The fan unit may further include a supply unit that supplies gas containing a fragrance to the intake portion of the fan.

[0036] This allows it to be used as a scent transfer device or a device that simultaneously presents airflow (wind) and scent to a user or space.

[0037] The fan may be a centrifugal fan.

[0038] The fan may be a fan in which blades rotate around an axis, sucking gas (typically air) in the axial direction from the intake section and blowing out air in 360° directions from the circumferential section.

[0039] A tactile presentation device according to one embodiment of the present disclosure includes a fan capable of blowing air from a circumferential portion, and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan and changing the opening range of the blowing portion.

[0040] A wind control device according to one embodiment of the present disclosure comprises a fan capable of blowing out wind from a circumferential portion, and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan and changing the opening range of the blowing portion.

[0041] A wind control method according to one embodiment of the present disclosure is capable of opening a blowing section, which is part of the circumferential section of a fan capable of blowing wind from the circumferential section, and a cover section that changes the opening range of the blowing section changes the range that covers the circumferential section of the fan, thereby changing the opening range of the blowing section.

[0042] A vehicle according to one embodiment of the present disclosure is equipped with a tactile presentation device having a fan capable of blowing air from a circumferential portion, and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan and changing the opening range of the blowing portion.

[0043] 1 shows a fan unit according to a first embodiment of the present disclosure; FIG. 2 shows a fan unit according to a second embodiment of the present disclosure; FIG. 3 is a perspective view showing an example of a tactile presentation device as an implementation example of a fan unit; FIG. 4 is a block diagram showing a configuration of a VR system that controls the tactile presentation device; FIG. 5 shows an operation flow in which the VR system controls the tactile presentation device; FIG. 6 is a schematic diagram showing wind diffusion; FIG. 7 is a schematic diagram showing a chair-type tactile presentation device; FIG. 8 is a schematic diagram showing a wind direction control method; FIG. 9 is a schematic diagram showing a tactile presentation device that can present a scent; FIG. 10 is a block diagram showing an example configuration of a vehicle control system; and FIG. 11 is a diagram showing an example of a sensing area.

[0044] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

[0045] 1. Fan unit according to the first embodiment

[0046] FIG. 1 shows a fan unit according to a first embodiment of the present disclosure.

[0047] The fan unit 100 according to the first embodiment includes a fan 110 and a cover portion 120 .

[0048] The fan 110 has blades 112 that rotate around an axis 111, thereby drawing in gas (typically air) in the axial direction through an intake section 113 and blowing out wind in a 360° direction from a circumferential section 114. In this embodiment and the following embodiments, the fan 110 is a centrifugal fan that blows out wind in a 360° centrifugal direction. The intake section 113 is located closer to the axis 111 than the outer edges 115 of the blades 112, and is an imaginary plane that intersects with the axial direction. The circumferential section 114 corresponds to the circumferential surface of an imaginary cylinder formed by the outer edges 115 of the blades 112.

[0049] The cover unit 120 opens the blowing section 117, which is part of the circumferential section 114 of the fan 110, and changes the opening range of the blowing section 117. The blowing section 117 is a part of the circumferential section 114 of the fan 110 that is not covered by the cover unit 120 and is capable of blowing out air. The cover unit 120 changes the opening range of the blowing section 117 by changing the area that it covers on the circumferential section 114 of the fan 110. The opening range of the blowing section 117 is synonymous with the open area of ​​the blowing section 117. The cover unit 120 changes the opening range of the blowing section 117 steplessly in both directions (reversibly) between a maximum value and a minimum value. The cover unit 120 has a fixed cover 130 and a movable cover 140.

[0050] The fixed cover 130 fixedly covers a part 116 of the circumferential portion 114 of the fan 110. The fixed cover 130 defines the limit of the opening range of the blowing portion 117, and consequently controls the blowing direction of the air from the blowing portion 117.

[0051] Movable cover 140 is a single component, and conversely, it is not made up of, for example, multiple opening and closing blades. Movable cover 140 is a long, flexible sheet, and has a width equal to or greater than the width of circumferential portion 114 of fan 110 (the height and thickness of fan 110).

[0052] The movable cover 140 has both ends in the width direction supported by a pair of guide rails 141. The guide rails 141 are arranged so as to circle the circumferential portion 114 of the fan 110 from near one end 131 of the fixed cover 130. The guide rails 141 are arranged at the other end 132 of the fixed cover 130 away from the circumferential portion 114 so that the other end 132 of the fixed cover 130 and the guide rails 141 form a blower (air outlet). With both ends in the width direction supported by the pair of guide rails 141, the movable cover 140 slides along the circumferential portion 114 from near one end 131 of the fixed cover 130 to the other end 132.

[0053] Movable cover 140 is displaced at least in the circumferential direction (the circumferential direction of circumferential portion 114 of fan 110) relative to circumferential portion 114 of fan 110, thereby changing the open range of blowout portion 117 in the circumferential direction. Movable cover 140 changes the range that covers circumferential portion 114 by sliding along circumferential portion 114 of fan 110, thereby changing the open range of blowout portion 117 in the circumferential direction in a bidirectional (reversible) and stepless manner between a maximum value and a minimum value.

[0054] (A) shows a state in which the open range of the blowout section 117 is at or near the maximum value. The tip 142 of the movable cover 140 is located near one end 131 of the fixed cover 130. The range along the circumferential portion 114 of the fan 110 from the tip 142 of the movable cover 140 to the other end 132 of the fixed cover 130 forms the blowout section 117. At this time, the blowout range of the blowout section 117 is the range schematically indicated by the wide arrow F1, and the blowout direction of the air from the blowout section 117 is the direction schematically indicated by the arrow F1. Furthermore, when the blowout range of the blowout section 117 is the range schematically indicated by the wide arrow F1, the flow speed of the blown air slows down.

[0055] (B) shows a state in which the opening range of the blowout section 117 is between the maximum and minimum values. The tip 142 of the movable cover 140 is in a position where it slides from one end 131 of the fixed cover 130 in (A) along the circumferential portion 114 of the fan 110. The range along the circumferential portion 114 of the fan 110 from the tip 142 of the movable cover 140 to the other end 132 of the fixed cover 130 forms the blowout section 117. At this time, the blowout range of the blowout section 117 is the range schematically indicated by arrow F2, and the blowout direction of the air from the blowout section 117 is the direction schematically indicated by arrow F2. Furthermore, since the blowout range of the blowout section 117 is the range schematically indicated by arrow F2 (narrower than arrow F1), the flow velocity of the blown air is faster than the flow velocity in (A).

[0056] (C) shows a state in which the open range of the blowout section 117 is at its minimum. The tip 142 of the movable cover 140 is at a position closest to the other end 132 of the fixed cover 130. The range along the circumferential section 114 of the fan 110, from the tip 142 of the movable cover 140 to the other end 132 of the fixed cover 130, forms the blowout section 117. At this time, the blowout range of the blowout section 117 is the range schematically indicated by the narrow arrow F3, and the blowout direction of the air from the blowout section 117 is the direction schematically indicated by the arrow F3. Furthermore, when the blowout range of the blowout section 117 is the range schematically indicated by the narrow arrow F3, the flow velocity of the blown air is at its fastest.

[0057] In this way, movable cover 140 controls the opening range of blowout section 117 by sliding along circumferential section 114. As a result, movable cover 140 also controls the blowout range of blowout section 117 and the blowout direction and flow rate from blowout section 117, as schematically shown by arrows F1, F2, and F3. If it is desired to keep the blowout direction from blowout section 117 constant, a rotation control section that rotates fan unit 100 may be further provided. The rotation control section may rotate fan unit 100 in the circumferential direction so as to maintain the blowout direction constant, which changes depending on the opening range.

[0058] According to this embodiment, the blowing range of blowing unit 117 and the blowing direction and flow speed from blowing unit 117 can be controlled simply by sliding and displacing movable cover 140. This allows for greater freedom in presenting wind without increasing the size of the device compared to, for example, installing multiple fans in multiple locations.

[0059] As a modified example, the guide rail 141 may be disposed near the other end 132 of the fixed cover 130, without being separated from the circumferential portion 114. By positioning the tip 142 of the movable cover 140 near the other end 132 of the fixed cover 130, the cover portion 120 covers the entire area of ​​the circumferential portion 114 of the fan 110, and the open area is almost zero. This design makes it possible to create a windless or nearly windless state.

[0060] 2. Fan unit according to the second embodiment

[0061] FIG. 2 shows a fan unit according to a second embodiment of the present disclosure.

[0062] In the following description, illustration and description of configurations and operations that are similar to those already illustrated and described may be omitted, and differences will be mainly described.

[0063] The fan unit 200 according to the second embodiment includes a fan 210 and a cover portion 220 .

[0064] The fan 210 is a centrifugal fan in which blades 212 rotate around an axis 211, sucking in gas (typically air) in the axial direction from an intake section 213 and blowing out air in a 360° direction from a circumferential section 214 (the outer edge 215 of the blades 212).

[0065] The cover unit 220 opens the blowing section 217, which is part of the circumferential section 214 of the fan 210, and changes the opening range of the blowing section 217. The blowing section 217 is a part of the circumferential section 214 of the fan 210 that is not covered by the cover unit 220 and is capable of blowing out air. The cover unit 220 changes the opening range of the blowing section 217 by changing the area that it covers on the circumferential section 214 of the fan 210. The opening range of the blowing section 217 is synonymous with the open area of ​​the blowing section 217. The cover unit 220 changes the opening range of the blowing section 217 steplessly in both directions (reversibly) between a maximum value and a minimum value. The cover unit 220 has a fixed cover 230 and a movable cover 240.

[0066] The fixed cover 230 houses the fan 210, i.e., it also functions as a housing for housing the fan. The fixed cover 230 has a closing portion 233 that fixedly covers a portion of the circumferential portion 214 of the fan 210, and an opening portion 235 that leaves the remaining portion of the circumferential portion 214 of the fan 210 open. The fixed cover 230 has open ends 231 and 232. In this example, the closing portion 233 covers half (180°) of the circumferential portion 214 of the fan 210, and leaves the remaining half (180°) of the circumferential portion 214 open. The fixed cover 230 defines the limit of the opening range of the blowing portion 217 (up to 180°), and consequently controls the direction of the air blown from the blowing portion 217.

[0067] The movable cover 240 is a single component, and conversely, it is not composed of, for example, multiple opening and closing blades. The movable cover 240 covers another portion of the circumferential portion 214 of the fan 210. In this example, the movable cover 240 covers ¼ (90°) of the circumferential portion 214 of the fan 210. The movable cover 240 is displaceable relative to the fixed cover 230, specifically, rotates in the circumferential direction relative to the fixed cover 230. In this example, the movable cover 240 is fixedly attached to the fan 210 and rotates together with the fan 210. As a variant, since it is theoretically only necessary that the position of the movable cover 240 relative to the fixed cover 230 be variable, the fan 210 may not rotate, and the movable cover 240 may rotate independently of the fan 210.

[0068] Movable cover 240 rotates in the circumferential direction relative to fixed cover 230, changing the range facing closed portion 233 of fixed cover 230 (overlapping with closed portion 233) and the range on the open portion 235 side, thereby changing the open range of blowout portion 217. Movable cover 240 changes the open range of blowout portion 217 in the circumferential direction in a stepless manner in both directions (reversibly) between a maximum value and a minimum value.

[0069] (A) shows a state in which the open range of the blowout section 217 is at or near its maximum value. The tip 242 of the movable cover 240 is located near one end 234 of the closing section 233 of the fixed cover 230. The entire movable cover 240 faces the closing section 233 of the fixed cover 230 (overlapping the closing section 233). The range along the circumferential section 214 of the fan 210 corresponding to the open portion of the movable cover 240 excluding the closing section 233 constitutes the blowout section 217. In other words, the entire open section 235 (180°) between the open ends 231 and 232 of the fixed cover 230 corresponds to the blowout section 217. In this case, the blowout range of the blowout section 217 is the range schematically indicated by the wide arrow F1. Furthermore, when the blowout range of the blowout section 217 is the range schematically indicated by the wide arrow F1, the flow velocity of the blown air slows down.

[0070] (B) shows a state in which the opening range of the blowout section 217 is between the maximum and minimum values. A portion 243 (approximately half) of the movable cover 240 faces the closing section 233 of the fixed cover 230 (overlapping the closing section 233). The tip 242 of the movable cover 240 extends beyond one end 234 of the closing section 233 of the fixed cover 230 and is positioned in the open section 235. The range from one open end 231 of the fixed cover 230 to the tip 242 of the movable cover 240 corresponds to the blowout section 217. In this case, the blowout range of the blowout section 217 is the range schematically indicated by arrow F2. Furthermore, since the blowout range of the blowout section 217 is the range schematically indicated by arrow F2 (narrower than arrow F1), the flow velocity of the blown air is faster than the flow velocity in (A).

[0071] (C) shows a state in which the open range of the blowing section 217 is at its minimum. The entire movable cover 240 is positioned in the open section 235 without facing the closing section 233 of the fixed cover 230 (without overlapping the closing section 233). The tip 242 of the movable cover 240 is positioned farthest from one end 234 of the closing section 233 of the fixed cover 230 and is positioned in the open section 235. The rear end 244 of the movable cover 240 is located near one end 234 of the closing section 233 of the fixed cover 230. The range (90°) from one open end 231 of the fixed cover 230 to the tip 242 of the movable cover 240 corresponds to the blowing section 217. In this case, the blowing range of the blowing section 217 is the range schematically indicated by the narrow arrow F3. Furthermore, when the blowing range of the blowing section 217 is the range schematically indicated by the narrow arrow F3, the flow velocity of the blown air becomes the fastest.

[0072] In this way, movable cover 240 rotates in the circumferential direction relative to fixed cover 230, changing the range facing closed portion 233 of fixed cover 230 (overlapping closed portion 233) and the range on the open portion 235 side, thereby controlling the open range of blowing portion 217. As a result, movable cover 240 also controls the blowing range of blowing portion 217 and the blowing direction and flow speed from blowing portion 217, as schematically shown by arrows F1, F2, and F3.

[0073] As a variant, the movable cover 240 may be larger than the portion of the fixed cover 230 that opens the circumferential portion 214 (in this example, the movable cover 240 is 180° or larger). In this case, the movable cover 240 completely covers the open portion 235 of the fixed cover 230, so that the cover portion 220 covers the entire range of the circumferential portion 214 of the fan 210, and the open range is almost zero. This design makes it possible to create a windless or near-windless state.

[0074] In this embodiment, the fixed cover 230 houses the movable cover 240 and the fan 210. In other words, the fixed cover 230 is located on the outside, and the movable cover 240 is located on the inside. Alternatively, as a modified example, the movable cover may be located on the outside and the fixed cover on the inside. Taking the example shown in this figure, the fixed cover 240 may be installed on the fan 210, and the fan 210 and the fixed cover 240 may be stationary (fixed), with the movable cover 230 rotating circumferentially around them. In this case, the movable cover 230 controls not only the blowing range and flow rate of the blowing unit 217 but also the blowing direction from the blowing unit 217, as in the first embodiment ( FIG. 1 ). If it is desired to maintain a constant blowing direction from the blowing unit 217, a rotation control unit that rotates the fan unit 100 may be further provided. The rotation control unit may rotate the fan unit 100 circumferentially so as to maintain a constant blowing direction that changes depending on the opening range.

[0075] According to this embodiment, the blowing range of blowing unit 217 and the blowing direction and flow speed from blowing unit 217 can be controlled simply by rotating and displacing movable cover 240. This allows for greater freedom in presenting wind without increasing the size of the device compared to, for example, installing multiple fans in multiple locations.

[0076] 3. Example of fan unit implementation

[0077] The fan units 100 and 200 according to the first and second embodiments can be implemented in various electronic devices as haptic presentation devices or wind control devices. Examples of implementations of the fan units 100 and 200 as haptic presentation devices include wearable VR devices, aroma diffusers, and vehicles. In a wearable VR device, a wide variety of haptic sensations can be presented by blowing air onto the wearer's skin from the air outlets 117 and 217, each with a variable opening range. In an aroma diffuser, a user can bring the aroma diffuser close to the tip of their nose and feel the wind tactilely on the skin at the tip of their nose. In a vehicle, blowing air toward the driver from the air outlets 117 and 217, each with a variable opening range, can alert the driver to driving behaviors, such as safety alerts, and can enhance the user experience when driving or experiencing content. An example of implementations of the fan units 100 and 200 as wind control devices is a cooling device that can be installed in an electronic device. The heat source can be efficiently cooled from the blowout sections 117 and 217, the opening range of which is variable. An example of implementation will be described in more detail below.

[0078] FIG. 3 is a perspective view showing an example of a tactile presentation device as an implementation example of a fan unit.

[0079] The haptic presentation device 300 is a wearable VR device. The haptic presentation device 300 has a neck-mounted speaker unit 301 and a pair of fan units 302, 302. Either the fan unit 100 or 200 according to the first or second embodiment may be implemented as the fan unit 302. In this figure, as an example, the fan unit 200 according to the second embodiment is implemented as the fan unit 302. When a user wears the neck-mounted speaker unit 301 around their neck, the opening 235 of the movable cover 230 of the fan unit 200 faces the user's face.

[0080] FIG. 4 is a block diagram showing the configuration of a VR system that controls a tactile presentation device.

[0081] The VR system 400 has a control circuit including a CPU 401, a GPU 402, a ROM 403, and a RAM 404, a bus 410 connecting these, an input unit 405 connected to the bus 410 via an input interface 411, an output unit 406, a storage unit 407, a communication unit 408, and a storage medium 409. The VR system 400 presents content data including video and sound to a user using an external electronic device.

[0082] The CPU 401 loads a program recorded in the ROM 403 into the RAM 404 and executes it to play content, etc. The CPU 401 functions as a fan control unit 412 and a cover control unit 413 that generate a fan control signal and a cover control signal in synchronization with the content and output them to the tactile presentation device 300 by wireless communication via the communication unit 408 and the output unit 406. The fan control signal is a signal that controls the on / off and rotation speed of the fan 210. The cover control signal is a signal that controls the rotation amount of the cover unit 220, etc., in order to control the opening range of the blowing unit 717 of the fan 210.

[0083] The GPU 402 renders images related to the content by loading a program recorded in the ROM 403 into the RAM 404 and executing it. The input unit 405 accepts input from external devices and the user. The output unit 406 outputs video signals and audio signals in addition to fan control signals and cover control signals. The storage unit 407 is a large-capacity non-volatile storage device such as an SSD or HDD. The communication unit 408 is an interface that performs wireless communication with the tactile presentation device 300 over a short distance, either via a network or without. The storage medium 409 is a non-volatile removable medium.

[0084] FIG. 5 shows an operational flow in which the VR system controls the haptic presentation device.

[0085] The CPU 401 determines whether wind presentation is triggered by a content scenario or event (step S1). For example, in the case of video content with a predetermined wind presentation scenario, wind presentation is triggered according to the scenario, and in the case of interactive content such as a game, wind presentation is triggered by an event during the game. The CPU 401 determines the presented wind speed and blowing range based on the scenario and event (step S2).

[0086] FIG. 6 shows a schematic diagram of wind diffusion.

[0087] The CPU 401 determines the output wind speed, wind output timing, and opening range of the blowout unit 117 based on the distance to the user and the blowout range (step S3). Specifically, the wind diffuses depending on the distance from the fan unit 200 to the user. Conversely, the wind diffusion range depends on the distance to the user. The narrower the wind diffusion range, the faster the wind speed; the wider the wind diffusion range, the slower the wind speed. The CPU 401 determines the output wind speed taking into account the wind diffusion range. To prevent the wind speed from changing depending on the wind diffusion range, the CPU 401 may adjust the wind speed for a small range, using the maximum wind speed for the maximum range as an upper limit. The CPU 401 also calculates backward the opening range of the blowout unit 117 to be output from the target wind diffusion range at the destination (user). The CPU 401 also adjusts the output timing to be earlier based on the distance and arrival time to the user, so that the wind reaches the user at the desired presentation timing according to the distance.

[0088] The CPU 401 generates a fan control signal based on the output wind speed and the wind output timing, and generates a cover control signal based on the opening range of the blowing unit 117. The CPU 401 outputs the fan control signal and the cover control signal to the tactile presentation device 300 by wireless communication via the communication unit 408 and the output unit 406 (step S4).

[0089] The fan unit 200 of the tactile presentation device 300 turns the fan 210 on and off based on the fan control signal, causing it to rotate at a specified rotation speed. Based on the cover control signal, the fan unit 200 sets the rotation amount of the cover part 220 and changes the opening range of the blowing part 717 of the fan 210. This allows the fan unit 200 of the tactile presentation device 300 to output a desired wind, thereby enhancing and expanding the sense of realism of the video and sound through tactile stimulation.

[0090] In use cases where wind is displayed in conjunction with video and audio, the degree of freedom in displaying wind can be improved by controlling not only the wind speed but also the range of wind diffusion. In addition to the rotation control of the fan unit 200 itself, it is possible to display wind with two degrees of freedom: wind speed and range.

[0091] 4. Application examples

[0092] (1) First application example

[0093] This embodiment can be applied to a case where a user wearing a neck-worn tactile presentation device 300 uses a VR system 400 to view environmental images and sounds. The VR system 400 displays images of a flowing river or rustling leaves, evoking the feeling of wind blowing. The wind is presented to the user at a set timing synchronized with the images. This can also add a sense of atmosphere to memorable landscapes.

[0094] When creating content, the target wind diffusion range and wind speed at the destination (user) are set as parameters. The opening range of the blow-out unit 117 and the motor rotation speed can be calculated from the wind speed. The opening range of the blow-out unit 117 is changed according to the distance. When the opening range of the blow-out unit 117 is narrowed, the wind speed increases, so the rotation speed is controlled to maintain the target wind speed. The wind may be adjusted according to the sound frequency of the content (diffusion and slow speed for low frequencies, convergence and fast speed for high frequencies).

[0095] It may also be used in conjunction with a sensor that measures the distance to the user's surface, in which case the wind speed output by the fan is calculated backward from the wind speed when it reaches the user.

[0096] The temperature of the air may be changed by installing a heat source or a cold source in the air intake section 113. For example, in addition to the image, it is possible to feel a cool breeze like being on a plateau. When displaying the temperature, the air speed may be slowed down so that the wind is not felt, and the device may be used for transferring heat.

[0097] The user may wear the neck-worn tactile presentation device 300, and the image may be displayed on a fixed display. Alternatively, the user may wear a head-mounted display, and the head-mounted display may be the tactile presentation device 300 and output the image and sound.

[0098] As another application example, when a user wearing the neck-worn tactile presentation device 300 runs on a treadmill, wind can be presented to the user, making it possible to present the user with the sensation of running through the wind outdoors.

[0099] (2) Second application example

[0100] This embodiment can be applied to cases where a user wearing a neck-worn haptic presentation device 300 plays an action game or the like using a VR system 400. When an event occurs in which an object passes near a character controlled by the user, wind corresponding to the object is presented. For example, in the case of a small, fast-moving object such as a bullet, wind concentrated in a narrow range is presented for a short period of time. For example, in the case of a train passing in front of the user, continuous wind is presented over a wide range.

[0101] When a character operated by a user is running, the wind speed presented to the user is changed according to the character's moving speed, and the moving speed is presented to the user.

[0102] Speed ​​changes can be used to present wind speeds that exceed the device's wind speed or to emphasize changes in wind speed. When the rate of change in wind speed exceeds a certain level or the specified presented wind speed exceeds the device's capabilities, a calm state may be created immediately before the change to create the illusion of a strong wind. For example, when a content scenario specifies wind speed levels from "3 to 10," the wind speed levels may be changed in the order of "3, 3, 0, 7, 7." To achieve the difference of "7" between wind speed levels "3 and 10," a calm state may be presented first, followed by a wind speed level of "7." To emphasize the calm state, a steady, weak wind speed may be presented and then suddenly changed to "0." When the rate of change in wind speed exceeds a certain level, the wind speed presented to the user may be intentionally overshot to emphasize the change. For example, when the wind speed level suddenly changes from "0" to "1," the wind speed levels may be changed in the order of "0, 0, 2, 1, 1."

[0103] The tactile presentation device 300 is not limited to a neck-worn type, but may be a wristband type, ankle band type, or head-mounted type that is worn on the hand, foot, or head and presents wind in response to the user's movements. If the tactile presentation device 300 is a wristband type worn on the hand, the action of attracting / releasing an object in the VR space may be presented by suction / release of wind.

[0104] (3) Third application example

[0105] FIG. 7 is a schematic diagram of a chair-type tactile presentation device.

[0106] The tactile presentation device 300 is not limited to a wearable device such as a neck strap, and may be a stationary device. For example, a stationary tactile presentation device 300 in which the fan unit 200 is installed near the headrest of a chair can be given as an example. Alternatively, a stationary tactile presentation device 300 in which the fan unit 200 is installed on an in-vehicle console, interior surface, windshield, dashboard, or the like can be given as an example.

[0107] By installing the tactile presentation device 300 on a chair, it can be used to present a sense of realism linked to games and videos. By installing the tactile presentation device 300 inside a vehicle, it becomes possible to present in conjunction with video and audio as in-car entertainment technology.

[0108] (4) Fourth application example

[0109] FIG. 8 shows a schematic diagram of a wind direction control method.

[0110] To control the wind direction, the fan unit 302 itself may be panned (moved like a pendulum). To create the feeling that wind is coming from the front, the fan unit 302 may be panned from front to back, outputting wind, and then repeatedly panning back to front while the wind is stopped. By staggering the timing of the wind presentation from the left and right fan units 302 (e.g., left first, right back), and repeating this operation, the user may be given the illusion that the wind is flowing from left to right (phantom sensation, apparent effect). When multiple fan units 302 are used, the fan units 302 may be driven sequentially to present a sense of direction using an apparent motion effect. When fan units 302 are installed on the left and right sides of the neck, the sensation of wind speed may be improved by controlling the pitch angle of one fan unit in the blowing direction and the other in the inhaling direction.

[0111] (5) Fifth application example

[0112] FIG. 9 is a schematic diagram of a tactile presentation device capable of presenting a scent.

[0113] An example of an implementation of the fan unit 200 as a tactile presentation device is an aroma diffuser. The fan unit 200 as an aroma diffuser further includes a supply unit 218 that supplies a gas containing a fragrance to the intake unit 213 of the fan 210. (A) shows the fan unit 200 from the intake unit 213 side. (B) shows the fan unit 200 from the open section 235 side. By installing the supply unit 218 that supplies a gas containing a fragrance to the intake unit 213 of the fan 210, the fan unit 200 can be used as a fragrance transfer device or a device that simultaneously presents airflow (wind) and a fragrance to a user or a space. The timing of scent presentation can be synchronized with the wind, and the amount of scent presented can be adjusted according to the wind speed to maintain a constant level. The user can bring the aroma diffuser close to the tip of their nose and tactilely feel the wind on the skin at the tip of their nose. The scent may be output in synchronization with the output of video and audio content.

[0114] 5. Example of vehicle control system configuration

[0115] FIG. 10 is a block diagram showing an example of the configuration of a vehicle control system 11, which is an example of a mobility device control system to which the present technology is applied.

[0116] The vehicle control system 11 is provided in the vehicle 1 and performs processing related to automated driving of the vehicle 1. This automated driving includes automated driving of levels 1 to 5, and remote driving and remote assistance of the vehicle 1 by a remote driver.

[0117] The vehicle control system 11 includes a vehicle control ECU (Electronic Control Unit) 21, a communication unit 22, a map information storage unit 23, a location information acquisition unit 24, an external recognition sensor 25, an in-vehicle sensor 26, a vehicle sensor 27, a memory unit 28, a driving automation control unit 29, a DMS (Driver Monitoring System) 30, an HMI (Human Machine Interface) 31, and a vehicle control unit 32.

[0118] The vehicle control ECU 21, communication unit 22, map information storage unit 23, position information acquisition unit 24, external recognition sensor 25, in-vehicle sensor 26, vehicle sensor 27, memory unit 28, driving automation control unit 29, DMS 30, HMI 31, and vehicle control unit 32 are connected to each other so as to be able to communicate with each other via a communication network 41. The communication network 41 is configured, for example, by an in-vehicle communication network or bus conforming to a digital two-way communication standard such as CAN (Controller Area Network), LIN (Local Interconnect Network), LAN (Local Area Network), FlexRay (registered trademark), or Ethernet (registered trademark). Different communication networks 41 may be used depending on the type of data being transmitted. For example, CAN may be used for data related to vehicle control, and Ethernet may be used for large-volume data. In addition, each part of the vehicle control system 11 may be directly connected without going through the communication network 41, using wireless communication intended for communication over relatively short distances, such as near field communication (NFC) or Bluetooth (registered trademark).

[0119] In the following description, when each unit of the vehicle control system 11 communicates via the communication network 41, the description of the communication network 41 will be omitted. For example, when the vehicle control ECU 21 and the communication unit 22 communicate via the communication network 41, it will simply be described that the vehicle control ECU 21 and the communication unit 22 communicate with each other.

[0120] The vehicle control ECU 21 is configured with various processors such as a CPU (Central Processing Unit), an MPU (Micro Processing Unit), etc. The vehicle control ECU 21 controls the entire or part of the functions of the vehicle control system 11.

[0121] The communication unit 22 communicates with various devices inside and outside the vehicle, other vehicles, servers, base stations, etc., and transmits and receives various data. At this time, the communication unit 22 can communicate using a plurality of communication methods.

[0122] The following provides an overview of communication with the outside of the vehicle that can be performed by the communication unit 22. The communication unit 22 communicates with a server (hereinafter referred to as an external server) or the like on an external network via a base station or an access point using a wireless communication method such as 5G (fifth generation mobile communication system), LTE (Long Term Evolution), or DSRC (Dedicated Short Range Communications). The external network with which the communication unit 22 communicates is, for example, the Internet, a cloud network, or a network specific to a carrier. The communication method used by the communication unit 22 with the external network is not particularly limited as long as it is a wireless communication method that enables digital two-way communication at a communication speed equal to or higher than a predetermined distance.

[0123] Furthermore, for example, the communication unit 22 can communicate with a terminal located near the vehicle using P2P (Peer to Peer) technology. The terminal located near the vehicle can be, for example, a terminal worn by a mobile object moving at a relatively slow speed, such as a pedestrian or a bicycle, a terminal installed at a fixed location in a store, or an MTC (Machine Type Communication) terminal. Furthermore, the communication unit 22 can also perform V2X communication. V2X communication refers to communication between the vehicle and others, such as vehicle-to-vehicle communication with another vehicle, vehicle-to-infrastructure communication with a roadside unit, vehicle-to-home communication, and vehicle-to-pedestrian communication with a terminal carried by a pedestrian.

[0124] The communication unit 22 can receive, for example, a program for updating software that controls the operation of the vehicle control system 11 from the outside (over the air). The communication unit 22 can also receive map information, traffic information, information about the surroundings of the vehicle 1, and the like from the outside. For example, the communication unit 22 can also transmit information about the vehicle 1 and information about the surroundings of the vehicle 1 to the outside. Information about the vehicle 1 that the communication unit 22 transmits to the outside includes, for example, data indicating the state of the vehicle 1 and the recognition result by the recognition unit 73. Furthermore, for example, the communication unit 22 performs communication corresponding to a vehicle emergency notification system such as e-call.

[0125] For example, the communication unit 22 receives electromagnetic waves transmitted by a road traffic information and communication system (VICS (Vehicle Information and Communication System) (registered trademark)) such as a radio beacon, an optical beacon, or FM multiplex broadcasting.

[0126] The following provides an overview of communication with the vehicle interior that can be performed by the communication unit 22. The communication unit 22 can communicate with each device in the vehicle using, for example, wireless communication. The communication unit 22 can communicate with each device in the vehicle using a communication method that enables bidirectional digital communication at a predetermined communication speed or higher via wireless communication, such as wireless LAN, Bluetooth, NFC, or Wireless USB (WUSB). The communication unit 22 can also communicate with each device in the vehicle using wired communication. For example, the communication unit 22 can communicate with each device in the vehicle using wired communication via a cable connected to a connection terminal (not shown). The communication unit 22 can communicate with each device in the vehicle using a communication method that enables bidirectional digital communication at a predetermined communication speed or higher via wired communication, such as Universal Serial Bus (USB), High-Definition Multimedia Interface (HDMI) (registered trademark), or Mobile High-Definition Link (MHL).

[0127] Here, the in-vehicle device refers to, for example, a device in the vehicle that is not connected to the communication network 41. Possible in-vehicle devices include, for example, a mobile device or wearable device carried by a user in the vehicle, such as a driver, and an information device brought into the vehicle and temporarily installed therein.

[0128] The map information storage unit 23 stores one or both of a map acquired from an external source and a map created by the vehicle 1. For example, the map information storage unit 23 stores a three-dimensional high-precision map, a global map that is less accurate than a high-precision map and covers a wide area, and the like.

[0129] Examples of high-precision maps include dynamic maps, point cloud maps, and vector maps. A dynamic map is a map consisting of four layers of dynamic information, quasi-dynamic information, quasi-static information, and static information, and is provided to the vehicle 1 from an external server or the like. A point cloud map is a map made up of a point cloud (point cloud data). A vector map is a map adapted to automated driving by associating traffic information such as the positions of lanes and traffic lights with the point cloud map.

[0130] The point cloud map and the vector map may be provided, for example, from an external server or the like, or may be created in the vehicle 1 based on sensing results from the camera 51, radar 52, LiDAR 53, etc. as a map for matching with a local map described later, and stored in the map information storage unit 23. Furthermore, when a high-precision map is provided from an external server or the like, map data of, for example, an area of ​​several hundred square meters relating to the planned route along which the vehicle 1 will travel is acquired from the external server or the like in order to reduce communication capacity.

[0131] The location information acquisition unit 24 receives GNSS (Global Navigation Satellite System) signals from GNSS satellites and acquires location information of the vehicle 1. The acquired location information is supplied to the driving automation control unit 29. Note that the method used by the location information acquisition unit 24 is not limited to using GNSS signals, and it may also acquire location information using a beacon, for example.

[0132] The external recognition sensor 25 includes various sensors used to recognize the situation outside the vehicle 1, and supplies sensor data from each sensor to each part of the vehicle control system 11. The type and number of sensors included in the external recognition sensor 25 are arbitrary.

[0133] For example, the external recognition sensor 25 includes a camera 51, a radar 52, a LiDAR (Light Detection and Ranging, Laser Imaging Detection and Ranging) 53, and an ultrasonic sensor 54. Without being limited to this, the external recognition sensor 25 may be configured to include one or more types of sensors selected from the camera 51, the radar 52, the LiDAR 53, and the ultrasonic sensor 54. The number of cameras 51, radars 52, LiDARs 53, and ultrasonic sensors 54 is not particularly limited as long as the number is a number that can be realistically installed on the vehicle 1. Furthermore, the types of sensors included in the external recognition sensor 25 are not limited to this example, and the external recognition sensor 25 may include other types of sensors. Examples of sensing areas of each sensor included in the external recognition sensor 25 will be described later.

[0134] The imaging method of the camera 51 is not particularly limited. For example, cameras of various imaging methods capable of distance measurement, such as a time-of-flight (ToF) camera, a stereo camera, a monocular camera, and an infrared camera, can be applied to the camera 51 as needed. However, the camera 51 may simply acquire an image without distance measurement.

[0135] Furthermore, for example, the external recognition sensor 25 may include an environmental sensor for detecting the environment for the vehicle 1. The environmental sensor is a sensor for detecting the environment such as weather, climate, brightness, etc., and may include various sensors such as a raindrop sensor, a fog sensor, a sunlight sensor, a snow sensor, and an illuminance sensor.

[0136] Furthermore, for example, the external recognition sensor 25 includes a microphone used to detect sounds around the vehicle 1 and the location of sound sources.

[0137] The interior sensor 26 includes various sensors for detecting information inside the vehicle, and supplies sensor data from each sensor to each unit of the vehicle control system 11. The types and number of the various sensors included in the interior sensor 26 are not particularly limited as long as they are of types and numbers that can be realistically installed in the vehicle 1.

[0138] For example, the interior sensor 26 may include one or more types of sensors selected from the group consisting of a camera, radar, a seating sensor, a steering wheel sensor, a microphone, and a biometric sensor. The camera included in the interior sensor 26 may be a camera using any of various imaging methods capable of measuring distances, such as a Time of Flight (ToF) camera, a stereo camera, a monocular camera, or an infrared camera. The camera included in the interior sensor 26 may also be a camera simply for acquiring captured images, regardless of distance measurement. The biometric sensor included in the interior sensor 26 may be provided, for example, on a seat, a steering wheel, or the like, and detect various types of biometric information of the user.

[0139] The vehicle sensor 27 includes various sensors for detecting the state of the vehicle 1, and supplies sensor data from each sensor to each unit of the vehicle control system 11. The types and number of the various sensors included in the vehicle sensor 27 are not particularly limited as long as they are of types and numbers that can be realistically installed on the vehicle 1.

[0140] For example, the vehicle sensor 27 includes a speed sensor, an acceleration sensor, an angular velocity sensor (gyro sensor), and an inertial measurement unit (IMU) that integrates these sensors. For example, the vehicle sensor 27 includes a steering angle sensor that detects the steering angle of the steering wheel, a yaw rate sensor, an accelerator sensor that detects the amount of accelerator pedal operation, and a brake sensor that detects the amount of brake pedal operation. For example, the vehicle sensor 27 includes a rotation sensor that detects the number of rotations of the engine or motor, an air pressure sensor that detects tire air pressure, a slip ratio sensor that detects tire slip ratio, and a wheel speed sensor that detects the rotation speed of the wheels. For example, the vehicle sensor 27 includes a battery sensor that detects the remaining battery charge and temperature, and an impact sensor that detects external impacts.

[0141] The storage unit 28 includes at least one of a non-volatile storage medium and a volatile storage medium, and stores data and programs. The storage unit 28 is used, for example, as an electrically erasable programmable read-only memory (EEPROM) and a random access memory (RAM). Examples of storage media that can be used include a magnetic storage device such as a hard disk drive (HDD), a semiconductor storage device, an optical storage device, and a magneto-optical storage device. The storage unit 28 stores various programs and data used by each component of the vehicle control system 11. For example, the storage unit 28 includes an event data recorder (EDR) and a data storage system for automated driving (DSSAD), and stores information about the vehicle 1 before and after an event such as an accident, and information acquired by the in-vehicle sensors 26.

[0142] The driving automation control unit 29 controls the driving automation function of the vehicle 1. For example, the driving automation control unit 29 includes an analysis unit 61, an action planning unit 62, and an operation control unit 63.

[0143] The analysis unit 61 performs an analysis process of the vehicle 1 and the surrounding situation. The analysis unit 61 includes a self-position estimation unit 71, a sensor fusion unit 72, and a recognition unit 73.

[0144] The self-position estimation unit 71 estimates the self-position of the vehicle 1 based on the sensor data from the external recognition sensor 25 and the high-precision map stored in the map information storage unit 23. For example, the self-position estimation unit 71 generates a local map based on the sensor data from the external recognition sensor 25 and matches the local map with the high-precision map to estimate the self-position of the vehicle 1. The position of the vehicle 1 is based on, for example, the center of the rear wheel pair axle.

[0145] The local map is, for example, a three-dimensional high-precision map or an occupancy grid map created using a technique such as SLAM (Simultaneous Localization and Mapping). The three-dimensional high-precision map is, for example, the point cloud map described above. The occupancy grid map is a map in which the three-dimensional or two-dimensional space around the vehicle 1 is divided into grids of a predetermined size and the occupancy status of objects is indicated on a grid-by-grid basis. The occupancy status of objects is indicated, for example, by the presence or absence of an object and its probability of existence. The local map is also used, for example, in the detection process and recognition process of the situation outside the vehicle 1 by the recognition unit 73.

[0146] The self-position estimation unit 71 may estimate the self-position of the vehicle 1 based on the position information acquired by the position information acquisition unit 24 and the sensor data from the vehicle sensor 27 .

[0147] The sensor fusion unit 72 performs sensor fusion processing to obtain information by combining multiple different types of sensor data (for example, image data supplied from the camera 51 and sensor data supplied from the radar 52). Methods for combining different types of sensor data include compounding, integration, fusion, and association.

[0148] The recognition unit 73 executes a detection process for detecting the situation outside the vehicle 1 and a recognition process for recognizing the situation outside the vehicle 1 .

[0149] For example, the recognition unit 73 performs detection processing and recognition processing of the situation outside the vehicle 1 based on information from the external recognition sensor 25, information from the self-position estimation unit 71, information from the sensor fusion unit 72, etc.

[0150] Specifically, for example, the recognition unit 73 performs detection processing and recognition processing of objects around the vehicle 1. The object detection processing is, for example, processing to detect the presence or absence, size, shape, position, movement, etc. of an object. The object recognition processing is, for example, processing to recognize attributes such as the type of object, or to identify a specific object. However, the detection processing and the recognition processing are not necessarily clearly separated, and may overlap.

[0151] For example, the recognition unit 73 detects objects around the vehicle 1 by performing clustering to classify a point cloud based on sensor data from the radar 52, the LiDAR 53, or the like into clusters of points. This allows the presence, size, shape, and position of objects around the vehicle 1 to be detected.

[0152] For example, the recognition unit 73 performs tracking to follow the movement of clusters of point clouds classified by clustering, thereby detecting the movement of objects around the vehicle 1. As a result, the speed and traveling direction (movement vector) of the objects around the vehicle 1 are detected.

[0153] For example, the recognition unit 73 detects or recognizes vehicles, people, bicycles, obstacles, structures, roads, traffic lights, traffic signs, road markings, etc. based on image data supplied from the camera 51. The recognition unit 73 may also recognize the types of objects around the vehicle 1 by performing recognition processing such as semantic segmentation.

[0154] For example, the recognition unit 73 can perform a recognition process of traffic rules around the vehicle 1 based on the map stored in the map information storage unit 23, the result of estimation of the self-position by the self-position estimation unit 71, and the result of recognition of objects around the vehicle 1 by the recognition unit 73. Through this process, the recognition unit 73 can recognize the positions and states of traffic lights, the contents of traffic signs and road markings, the contents of traffic regulations, and lanes that can be traveled, etc.

[0155] For example, the recognition unit 73 can perform a recognition process of the environment around the vehicle 1. The surrounding environment to be recognized by the recognition unit 73 may include weather, temperature, humidity, brightness, and road surface conditions.

[0156] The behavior planning unit 62 creates a behavior plan for the vehicle 1. For example, the behavior planning unit 62 creates the behavior plan by performing route planning and route tracking processing.

[0157] The route planning includes global path planning and local path planning. Global path planning includes a process of planning a rough route from a start to a goal. Local path planning, also called trajectory planning, includes a process of generating a trajectory that allows the vehicle 1 to proceed safely and smoothly in the vicinity of the vehicle 1 on the planned route, taking into account the motion characteristics of the vehicle 1.

[0158] Path following is a process of planning an operation for safely and accurately traveling along a route planned by a route plan within a planned time. The behavior planning unit 62 can, for example, calculate a target speed and a target angular velocity of the vehicle 1 based on the results of this path following process.

[0159] The operation control unit 63 controls the operation of the vehicle 1 in order to realize the action plan created by the action planning unit 62 .

[0160] For example, the operation control unit 63 controls a steering control unit 81, a brake control unit 82, and a drive control unit 83 included in a vehicle control unit 32 described later, to perform lateral vehicle motion control and longitudinal vehicle motion control so that the vehicle 1 travels along the trajectory calculated by the trajectory plan. For example, the operation control unit 63 performs control aimed at driver assistance functions such as collision avoidance or impact mitigation, following driving, vehicle speed maintenance driving, host vehicle collision warning, host vehicle lane departure warning, and driving automation such as driving without operation by the driver or a remote driver.

[0161] The DMS 30 performs processes such as authenticating the driver and recognizing the driver's state based on sensor data from the in-vehicle sensors 26 and input data input to the HMI 31 (described later). Examples of the driver's state to be recognized include physical condition, level of alertness, level of concentration, level of fatigue, line of sight, level of intoxication, driving operation, and posture.

[0162] The DMS 30 may be configured to perform authentication processing for users other than the driver and recognition processing for the status of the users. Furthermore, for example, the DMS 30 may be configured to perform recognition processing for the status inside the vehicle based on sensor data from the in-vehicle sensor 26. Examples of the status inside the vehicle that may be recognized include temperature, humidity, brightness, and odor.

[0163] The HMI 31 inputs various data and instructions and presents various data to the user.

[0164] The following provides an overview of data input via the HMI 31. The HMI 31 includes input devices for a person to input data. The HMI 31 generates input signals based on data, instructions, and the like input via the input devices and supplies the signals to each component of the vehicle control system 11. The HMI 31 includes, as input devices, controls such as a touch panel, buttons, switches, and levers. The HMI 31 may also include input devices that allow information to be input by voice, gestures, or other means other than manual operation. Furthermore, the HMI 31 may use, as input devices, externally connected devices such as a remote control device using infrared or radio waves, or a mobile or wearable device compatible with the operation of the vehicle control system 11.

[0165] The presentation of data by the HMI 31 will be briefly described. The HMI 31 generates visual information, auditory information, and tactile information for the user or the outside of the vehicle. The HMI 31 also performs output control, controlling the output, output content, output timing, output method, etc. of each piece of generated information. The HMI 31 generates and outputs, as visual information, information indicated by images or lights, such as an operation screen, a status display of the vehicle 1, a warning display, and a monitor image showing the situation around the vehicle 1. The HMI 31 also generates and outputs, as auditory information, information indicated by sounds, such as voice guidance, warning sounds, and warning messages. The HMI 31 also generates and outputs, as tactile information, information imparted to the user's sense of touch by, for example, force, vibration, movement, etc.

[0166] Examples of output devices that the HMI 31 uses to output visual information include a display device that displays an image on its own to present visual information and a projector device that projects an image to present visual information. The display device may be a device that displays visual information within the user's field of vision, such as a head-up display, a transmissive display, or a wearable device with an augmented reality (AR) function, in addition to a display device with a normal display. The HMI 31 may also use display devices included in a navigation system, an instrument panel, a camera monitoring system (CMS), an electronic mirror, a lamp, or the like provided in the vehicle 1 as output devices that output visual information.

[0167] As an output device for the HMI 31 to output auditory information, for example, an audio speaker, a headphone, or an earphone can be applied.

[0168] For example, a haptic element using haptic technology can be applied as an output device for outputting tactile information from the HMI 31. The haptic element is provided on a part that the user touches, such as a steering wheel or a seat.

[0169] The vehicle control unit 32 controls each part of the vehicle 1. The vehicle control unit 32 includes a steering control unit 81, a brake control unit 82, a drive control unit 83, a body system control unit 84, a light control unit 85, and a horn control unit 86.

[0170] The steering control unit 81 detects and controls the state of the steering system of the vehicle 1. The steering system includes, for example, a steering mechanism including a steering wheel, an electric power steering, etc. The steering control unit 81 includes, for example, a steering ECU that controls the steering system, an actuator that drives the steering system, etc.

[0171] The brake control unit 82 detects and controls the state of the brake system of the vehicle 1. The brake system includes, for example, a brake mechanism including a brake pedal, an antilock brake system (ABS), a regenerative brake mechanism, etc. The brake control unit 82 includes, for example, a brake ECU that controls the brake system, an actuator that drives the brake system, etc.

[0172] The drive control unit 83 detects and controls the state of the drive system of the vehicle 1. The drive system includes, for example, an accelerator pedal, a drive force generating device for generating drive force such as an internal combustion engine or a drive motor, and a drive force transmission mechanism for transmitting the drive force to the wheels. The drive control unit 83 includes, for example, a drive ECU for controlling the drive system, and an actuator for driving the drive system.

[0173] The body system control unit 84 detects and controls the states of the body system systems of the vehicle 1. The body system systems include, for example, a keyless entry system, a smart key system, a power window device, a power seat, an air conditioning system, an airbag, a seat belt, a shift lever, etc. The body system control unit 84 includes, for example, a body system ECU that controls the body system systems, an actuator that drives the body system systems, etc.

[0174] The light control unit 85 detects and controls the states of various lights of the vehicle 1. Examples of lights to be controlled include headlights, backlights, fog lights, turn signals, brake lights, projections, and bumper displays. The light control unit 85 includes a light ECU that controls the lights, an actuator that drives the lights, and the like.

[0175] The horn control unit 86 detects and controls the state of the car horn of the vehicle 1. The horn control unit 86 includes, for example, a horn ECU that controls the car horn, an actuator that drives the car horn, and the like.

[0176] 11 is a diagram showing an example of a sensing area of ​​the camera 51, radar 52, LiDAR 53, ultrasonic sensor 54, etc. of the external recognition sensor 25. Note that in the figure, the vehicle 1 is shown as viewed from above, with the left end side being the front end (front) side of the vehicle 1 and the right end side being the rear end (rear) side of the vehicle 1.

[0177] Sensing area 101F and sensing area 101B show examples of sensing areas of the ultrasonic sensors 54. Sensing area 101F covers the periphery of the front end of the vehicle 1 with multiple ultrasonic sensors 54. Sensing area 101B covers the periphery of the rear end of the vehicle 1 with multiple ultrasonic sensors 54.

[0178] The sensing results in the sensing area 101F and the sensing area 101B are used, for example, for parking assistance for the vehicle 1.

[0179] Sensing area 102F to sensing area 102B show examples of sensing areas of a short-range or medium-range radar 52. Sensing area 102F covers a position farther in front of the vehicle 1 than sensing area 101F. Sensing area 102B covers a position farther behind the vehicle 1 than sensing area 101B. Sensing area 102L covers the periphery behind the left side of the vehicle 1. Sensing area 102R covers the periphery behind the right side of the vehicle 1.

[0180] The sensing results in sensing area 102F are used, for example, to detect vehicles, pedestrians, and the like that are present in front of the vehicle 1. The sensing results in sensing area 102B are used, for example, for a collision prevention function behind the vehicle 1. The sensing results in sensing area 102L and sensing area 102R are used, for example, to detect objects in blind spots on the sides of the vehicle 1.

[0181] Sensing areas 103F to 103B show examples of sensing areas sensed by camera 51. Sensing area 103F covers a position farther in front of vehicle 1 than sensing area 102F. Sensing area 103B covers a position farther in the rear of vehicle 1 than sensing area 102B. Sensing area 103L covers the periphery of the left side of vehicle 1. Sensing area 103R covers the periphery of the right side of vehicle 1.

[0182] The sensing results in the sensing area 103F can be used for, for example, recognition of traffic lights and traffic signs, lane departure prevention assistance systems, and automatic headlight control systems. The sensing results in the sensing area 103B can be used for, for example, parking assistance and surround view systems. The sensing results in the sensing areas 103L and 103R can be used for, for example, surround view systems.

[0183] Sensing area 104 shows an example of the sensing area of ​​LiDAR 53. Sensing area 104 covers a position farther ahead of vehicle 1 than sensing area 103F. On the other hand, sensing area 104 has a narrower range in the left-right direction than sensing area 103F.

[0184] The sensing results in the sensing area 104 are used to detect objects such as surrounding vehicles, for example.

[0185] A sensing area 105 shows an example of the sensing area of ​​the long-range radar 52. The sensing area 105 covers a position further ahead of the vehicle 1 than the sensing area 104. On the other hand, the sensing area 105 has a narrower range in the left-right direction than the sensing area 104.

[0186] The sensing results in the sensing area 105 are used for, for example, adaptive cruise control (ACC), emergency braking, collision avoidance, and the like.

[0187] The sensing areas of the cameras 51, radars 52, LiDARs 53, and ultrasonic sensors 54 included in the external recognition sensor 25 may have various configurations other than those shown in the figure. Specifically, the ultrasonic sensors 54 may also sense the sides of the vehicle 1, and the LiDAR 53 may sense the rear of the vehicle 1. The installation positions of the sensors are not limited to the above-described examples. The number of each sensor may be one or more.

[0188] The present disclosure may have the following configurations.

[0189] (1) A fan unit comprising: a fan capable of blowing air from a circumferential portion; and a cover portion capable of opening a blowing portion that is a part of the circumferential portion of the fan and changing the opening range of the blowing portion. (2) The fan unit described in (1) above, wherein the cover portion changes the opening range of the blowing portion by changing the area that it covers the circumferential portion of the fan. (3) The fan unit described in (1) or (2) above, wherein the cover portion changes the opening range of the blowing portion steplessly in both directions between a maximum value and a minimum value. (4) The fan unit described in any one of (1) to (3) above, wherein the cover portion has a movable cover that changes the area that it covers the circumferential portion of the fan by moving along the circumferential portion of the fan, thereby changing the opening range of the blowing portion in the circumferential direction. (5) The fan unit according to (4) above, wherein the movable cover controls the direction of airflow from the blowing section by displacing along the circumferential section of the fan. (6) The fan unit according to any one of (1) to (3) above, wherein the cover section comprises: a fixed cover that houses the fan and has a closing section that covers a part of the circumferential section of the fan and an opening section that exposes the remaining part of the circumferential section of the fan; and a movable cover that covers another part of the circumferential section of the fan and displaces relative to the fixed cover to change the area that faces the closing section, thereby changing the open range of the blowing section. (7) The fan unit according to (6) above, wherein the fixed cover houses the movable cover and the fan. (8) The fan unit according to any one of (1) to (7) above, wherein the open range is minimum when the cover section covers the entire circumferential section of the fan. (9) The fan unit according to any one of (1) to (8) above, wherein the cover portion controls the direction of air blown from the blowing portion.(10) The fan unit according to any one of (1) to (9) above, wherein the cover portion changes the blowing direction by changing the open range. (11) The fan unit according to any one of (1) to (10) above, further comprising a rotation control portion that rotates the fan unit. (12) The fan unit according to (11) above, wherein the rotation control portion rotates the fan unit in a circumferential direction so as to maintain constant the blowing direction that changes with the change in the open range. (13) The fan unit according to any one of (1) to (12) above, wherein the cover portion changes the open range of the blowing portion to change the blowing range, blowing direction, and flow speed. (14) The fan unit according to any one of (4) to (7) above, wherein the movable cover is a single component. (15) The fan unit according to any one of (1) to (14) above, further comprising a supply unit that supplies gas containing a fragrance to an intake portion of the fan. (16) The fan unit according to any one of (1) to (15) above, wherein the fan is a centrifugal fan. (17) A tactile presentation device comprising: a fan capable of blowing out air from a circumferential portion; and a cover unit that can open a blowing portion that is a part of the circumferential portion of the fan and change the opening range of the blowing portion. (18) A wind control device comprising: a fan capable of blowing out air from a circumferential portion; and a cover unit that can open a blowing portion that is a part of the circumferential portion of the fan and change the opening range of the blowing portion. (19) A wind control method in which a blowing section, which is part of the circumferential section of a fan capable of blowing wind from the circumferential section, can be opened, and a cover section that changes the opening range of the blowing section changes the opening range of the blowing section by changing the range that covers the circumferential section of the fan.(20) A vehicle equipped with a tactile presentation device having a fan capable of blowing air from a circumferential portion, and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan and changing the opening range of the blowing portion.

[0190] Although the embodiments and modified examples of the present technology have been described above, the present technology is not limited to the above-described embodiments, and it goes without saying that various modifications can be made within the scope of the gist of the present technology.

[0191] 100 Fan unit 110 Fan 111 Shaft 112 Blade 113 Intake section 114 Circumferential section 115 Outer edge 116 Part 117 Blow-out section 117 Open range 120 Cover section 130 Fixed cover 131 One end 132 Other end 140 Movable cover 141 Guide rail 142 Tip 200 Fan unit 210 Fan 211 Shaft 212 Blade 213 Intake section 214 Circumferential section 215 Outer edge 217 Blow-out section 220 Cover section 230 Fixed cover 231 Open end 233 Closed section 234 One end 235 Open section 240 Movable cover 242 Tip 243 Part 244 Rear end 300 tactile presentation device 301 neck speaker unit 302 fan unit 400 VR system 401 CPU 402 GPU 403 ROM 404 RAM 405 input unit 406 output unit 407 storage unit 408 communication unit 409 storage medium 410 bus 411 input interface 412 fan control unit 413 cover control unit 717 blowing unit

Claims

1. A fan unit comprising: a fan capable of blowing out air from a circumferential portion; and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan, and which changes the opening range of the blowing portion.

2. A fan unit as claimed in claim 1, wherein the cover portion changes the range of coverage of the circumferential portion of the fan, thereby changing the open range of the blowing portion.

3. A fan unit as claimed in claim 1, wherein the cover portion changes the opening range of the blowing portion steplessly in both directions between a maximum value and a minimum value.

4. A fan unit as described in claim 1, wherein the cover portion has a movable cover that changes the range of coverage of the circumferential portion by displacing along the circumferential portion of the fan, thereby changing the open range of the blowing portion in the circumferential direction.

5. A fan unit according to claim 4, wherein the movable cover controls the blowing direction from the blowing section by being displaced along the circumferential portion of the fan.

6. A fan unit as described in claim 1, wherein the cover portion comprises: a fixed cover which houses the fan and has a closing portion which covers part of the circumferential portion of the fan and an opening portion which opens the remaining part of the circumferential portion of the fan; and a movable cover which covers another part of the circumferential portion of the fan and which is displaceable relative to the fixed cover to change the range which faces the closing portion, thereby changing the open range of the blowing portion.

7. A fan unit according to claim 6, wherein the fixed cover houses the movable cover and the fan.

8. A fan unit as claimed in claim 1, wherein the opening range is at a minimum when the cover portion covers the entire circumferential range of the fan.

9. A fan unit as claimed in claim 1, wherein the cover portion controls the direction of air blown from the blowing portion.

10. A fan unit according to claim 1, wherein the cover portion changes the blowing direction by changing the opening range.

11. A fan unit according to claim 1, further comprising a rotation control unit for rotating the fan unit.

12. A fan unit according to claim 11, wherein the rotation control section rotates the fan unit in a circumferential direction so as to maintain a constant blowing direction which changes with the change in the opening range.

13. A fan unit as claimed in claim 1, wherein the cover portion changes the opening range of the blowing portion to thereby change the blowing range, blowing direction and flow speed.

14. A fan unit according to claim 4, wherein the movable cover is a single part.

15. A fan unit according to claim 1, further comprising a supply section for supplying gas containing a fragrance to the intake section of the fan.

16. A fan unit according to claim 1, wherein the fan is a centrifugal fan.

17. A tactile presentation device comprising: a fan capable of blowing out air from a circumferential portion; and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan, and capable of changing the opening range of the blowing portion.

18. A wind control device comprising: a fan capable of blowing out air from a circumferential portion; and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan, and capable of changing the opening range of the blowing portion.

19. A wind control method in which a blowing section, which is part of the circumferential part of a fan capable of blowing out air from the circumferential part, can be opened, and a cover part which changes the opening range of the blowing section changes the opening range of the blowing section by changing the area which the cover part covers of the circumferential part of the fan.

20. A vehicle equipped with a tactile presentation device having a fan capable of blowing out air from a circumferential portion, and a cover portion capable of opening a blowing portion that is part of the circumferential portion of the fan, and changing the opening range of the blowing portion.

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