Information display device and information display method

Abstract

To provide an information presentation device and an information presentation method capable of preventing a user from feeling that presenting information is complicated while preventing a driver from conducting driving operation causing vehicle motion that leads to motion sickness.SOLUTION: An information presentation device and an information presentation method calculate, on the basis of a parameter related to acceleration acting on a vehicle or a passenger, an amount of actuation which is an amount by which an oscillating body moves or deforms to prompt a change in a posture of the passenger or driving operation and an actuation direction which is a direction where the oscillating body moves or deforms for each passenger of the vehicle. Moreover, the device and the method calculate a priority level indicating priority for presenting the oscillating body for each passenger. A motion output to a driver of the vehicle is different from a motion output to a fellow passenger other than the driver out of the passengers when a motion of the oscillating body is output to the passenger on the basis of the amount of actuation, the actuation direction, and the priority level.SELECTED DRAWING: Figure 1

Description

【Technical Field】 【0001】 The present invention relates to an information presentation device and an information presentation method. 【Background Art】 【0002】 There is known a technique for preventing or reducing the occurrence of motion sickness in a user by causing a predetermined graphic image to be deformed and displayed in a direction of deformation corresponding to the direction opposite to the direction of acceleration related to inertial force so as to prompt the user's posture when viewing an image to tilt in the direction opposite to the direction of acceleration related to inertial force (Patent Document 1). 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2019-174523 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 The invention described in Patent Document 1 has a problem that while suppressing the divergence between the recognition of the occupant and the actual vehicle movement, it cannot suppress the driver from performing a driving operation that causes a vehicle movement leading to motion sickness. Further, since information such as a graphic image is presented regardless of the possibility of occurrence of motion sickness, there is a problem that the information presentation feels complicated to the user. 【0005】 The present invention has been made in view of the above problems. An object thereof is to provide an information presentation device and an information presentation method capable of suppressing a driver from performing a driving operation that causes a vehicle movement leading to motion sickness and suppressing the user from feeling that the information presentation is complicated. 【Means for Solving the Problems】 【0006】 An information presentation device and information presentation method according to one aspect of the present invention calculates, for each occupant of a vehicle, an actuation amount, which is the amount by which a oscillating body moves or deforms to induce a change in the occupant's posture or driving operation, and an actuation direction, which is the direction in which the oscillating body moves or deforms, based on parameters related to the acceleration acting on the vehicle or occupant. Then, for each occupant, a priority level is calculated that indicates the priority of presenting the oscillating body. When outputting the operation of the oscillating body to the occupants based on the actuation amount, actuation direction, and priority level, the operation output to the vehicle driver is different from the operation output to passengers other than the driver. [Effects of the Invention] 【0007】 According to the present invention, it is possible to suppress the driver from performing driving operations that cause vehicle motion leading to kinesiology, while also suppressing the user from finding the information presented to them cumbersome. [Brief explanation of the drawing] 【0008】 [Figure 1] Figure 1 is a block diagram showing an example of the configuration of the information presentation device 100 according to this embodiment. [Figure 2] Figure 2 is a flowchart showing an example of the basic processing of information presentation in the information presentation device 100 of this embodiment. [Figure 3] Figure 3 shows an example in which the index value (index value a, etc.) calculated by the index value calculation unit 112 is normalized to a value between 0 and 1 using a monotonically increasing function. [Figure 4] Figure 4 shows an example of subdividing the area within area 2 (NG area) where the index value is sufficiently large into area 3. [Figure 5] Figure 5 shows an example of information presentation to the crew. [Modes for carrying out the invention] 【0009】 Embodiments of the present invention will be described below with reference to the drawings. In the drawings, identical parts are denoted by the same reference numerals and their descriptions are omitted. 【0010】 [Configuration of the information display device] Figure 1 is a block diagram showing an example of the configuration of an information presentation device 100 according to this embodiment. As shown in the block diagram of Figure 1, the configuration of the information presentation device 100 to which this embodiment is applied conceptually shows only the parts of the configuration that are relevant to this embodiment. 【0011】 As one embodiment of this invention, consider an automobile equipped with an information display device 100 to which the present invention is applied. Figure 1 shows the configuration of the information display device 100 to which the present invention is applied, and the information display device 100 consists of a sensor 20, a controller 50, and an output unit 70. 【0012】 The information display device 100 may be equipped with one or more output units 70. The information display device 100 may also be equipped with an output unit 70 for each occupant of the vehicle. 【0013】 The controller 50 calculates an output value (control value) related to motion sickness, using as input values ​​parameters that change according to the driving conditions and act on the vehicle or the occupants of the vehicle (occupants) at least related to acceleration. The following are examples of parameters that act on the vehicle or occupants at least related to acceleration: • Δv: Error in the vertical velocity perceived by the crew (see references below) • Accelerations acting on the vehicle's body (e.g., roll and yaw) • Acceleration acting on the occupant's head (e.g., vehicle acceleration) 【0014】 As shown in Figure 1, in this embodiment, the controller 50 includes an acquisition unit 51, a calculation unit 53, and a determination unit 55. 【0015】 Sensor 20 is a sensor mounted on a vehicle or a device worn by an occupant, and examples include acceleration sensors, velocity sensors, yaw axis angular velocity sensors, roll axis angular velocity sensors, etc. 【0016】 In addition, the sensor 20 may include a sensor for detecting the posture of the occupant. Examples of sensors for detecting the posture of the occupant include acceleration sensors, GPS, seating sensors, stress sensors such as pulse oximeters, etc. The sensor 20 may detect the posture of the occupant by image recognition based on an image of the occupant captured via a camera or an infrared sensor. 【0017】 The acquisition unit 51 acquires measurement values related to the driving state via the sensor 20. In particular, the acquisition unit 51 acquires parameters related to the acceleration acting on the vehicle or the occupant boarding the vehicle. 【0018】 The calculation unit 53 acquires, as input values, parameters acting on the vehicle or the occupant boarding the vehicle from the measurement values acquired by the acquisition unit 51, and calculates an output value corresponding to the above-described parameters, or an output value corresponding to an index value related to motion sickness. 【0019】 The index value related to motion sickness indicates the degree of concern about motion sickness, and can be obtained by a known method such as the SVC (Subjective Vertical Conflict Theory) model as an example. Here, the SVC model is a model that calculates the degree of concern (MSI: Motion Sickness Incidence) about motion sickness by accumulating over time the deviation between the subjective sense of movement perceived from the acceleration generated in the head of the occupant of a moving object and the estimated value of the sense of movement by the internal model of a human (see reference: Fujisawa, Wada, Konno, Doi (2012) "Analysis of the driver's head position control strategy and its application to a posture control device", Transactions of the Institute of Measurement and Control, Vol. 48, No. 1, pp. 60-66). As an example, the index value related to motion sickness may be the following value (referred to as "index value a") calculated by the SVC model or the MSI value (see Fig. 1 of the reference). 【Number】 【0020】 The value obtained by the above formula normalizes the discrepancy between subjective perception and estimated value for each single processing frame using a nonlinear function, and this calculated value can be considered as an instantaneous value of the degree of concern about motion sickness in relation to the current driving behavior. Thus, as an example, by applying the SVC model, the degree of concern about motion sickness in the calculation unit 53 can be calculated more appropriately. 【0021】 Furthermore, the calculation unit 53 calculates, as output values, for each occupant the amount of movement or deformation of the oscillating body and the direction of movement or deformation of the oscillating body, based on the parameters. Here, the oscillating body refers to characters, agents, figures, etc., presented to the occupant via the output unit 70 in order to prompt a change in the occupant's posture or driving operation. 【0022】 More specifically, the calculation unit 53 individually calculates the amount and direction of operation associated with the driver and the amount and direction of operation associated with the passengers. The amount and direction of operation associated with the driver and the amount and direction of operation associated with the passengers may be different. 【0023】 For example, the calculation unit 53 calculates the operating direction for passengers such that it is in the opposite direction to the lateral component of the acceleration (the direction approximately perpendicular to the direction of travel of the vehicle). The calculation unit 53 also calculates the operating direction for the driver such that it is in the same direction as the lateral component of the acceleration. 【0024】 Furthermore, the calculation unit 53 calculates a priority level for each occupant, indicating the priority for presenting the oscillating body. As will be described later, the output unit 70 adjusts the output (information presentation) of the oscillating body's movement based on the amount of operation and direction of operation, based on the priority level. 【0025】 The calculation unit 53 may also calculate the priority level based on an index value representing the degree of motion sickness of the crew members, calculated based on the parameters. In particular, the calculation unit 53 may calculate the priority level such that the higher the index value related to a crew member, the higher the priority level for that crew member. The calculation unit 53 may also calculate the priority level based on the number of crew members. 【0026】 The calculation unit 53 may calculate the priority level based on the driver's driving time. In particular, the calculation unit 53 may calculate the priority level such that the longer the driver's driving time, the higher the priority level for the passenger. The calculation unit 53 may also calculate the passenger's stress level and calculate the priority level based on the calculated stress level. In particular, the calculation unit 53 may calculate the priority level such that the higher the passenger's stress level, the higher the priority level for the passenger. The stress level may be calculated based on, for example, the duration of travel, the frequency of vehicle shaking, the vehicle speed, the distance to obstacles around the vehicle, etc. 【0027】 Furthermore, the calculation unit 53 may calculate the priority level based on changes in the driver's driving tendencies. The driver's driving tendencies may be estimated based on, for example, the frequency of acceleration, braking, the duration of each acceleration, and the duration of each braking while driving. 【0028】 Furthermore, the calculation unit 53 may calculate the priority level based on the road characteristics of the road on which the vehicle is traveling. Here, the road characteristics of the road on which the vehicle is traveling may be obtained from a map database or the like, which is not shown. The calculation unit 53 may also calculate the priority level based on flags set by the occupants. 【0029】 The calculation unit 53 may obtain output values ​​by performing various adaptive processing on the parameters or index values ​​related to motion sickness described above. For example, the calculation unit 53 may calculate an index value as the degree of concern regarding motion sickness based on the measurement values ​​of the sensor 20 acquired by the acquisition unit 51, and then perform processing to adapt the output value according to the magnitude of the index value. Examples of calculations for the adaptive processing of the index value include noise reduction using a low-pass filter and normalization associated with conversion to output values. 【0030】 Here, Figure 3 shows an example in which the index value (index value a, etc.) calculated by the calculation unit 53 is normalized to a value between 0 and 1 using a monotonically increasing function. 【0031】 As shown in Figure 3, the region where the index value is near 0 is designated as Region 1 (hereinafter referred to as the "OK region" or "first range"), and the region above that is designated as Region 2 (hereinafter referred to as the "NG region" or "second range"). For example, the first range in which the above-mentioned parameters or index values ​​are less than or equal to the set value may be designated as Region 1, and the second range in which the above-mentioned parameters or index values ​​are greater than the set value may be designated as Region 2. 【0032】 In Region 1, the concern about motion sickness is sufficiently low, while in Region 2, the concern about motion sickness is above a certain level, so it is necessary to effectively output this concern to the driver. In other words, the boundary input value (setpoint), which is the input value at the boundary between Region 1 and Region 2, is the input value such that the concern about motion sickness is above a certain level. Therefore, the setpoint is set based on the relationship that holds between acceleration and the passenger's concern about motion sickness (degree of motion sickness). 【0033】 Furthermore, the calculation unit 53 may make the area of ​​area 1 larger for drivers who are not yet proficient in driving compared to drivers who are improving. For example, the controller 50 may determine that a driver whose average index value over a certain period is greater than a predetermined value is an inexperienced driver and set the area of ​​area 1 larger, i.e., the boundary input value larger. 【0034】 Thus, the calculation performed by the calculation unit 53 is such that the output value increases as the input value increases, and in region 1, which includes an input value of 0, the slope of the increase in the output value with respect to the increase in the input value in region 2, which corresponds to a larger input value, may be small. In other words, in region 2, the slope of the increase in the output value with respect to the increase in the input value is larger than in region 1. That is, the change in the amount of operation per unit change of the parameter in the second range is larger than the change in the amount of operation per unit change of the parameter in the first range. 【0035】 Furthermore, if the magnitude of the input value is in region 2, the controller 50 may provide the output unit 70 with an output value calculated from the input value, along with an output value calculated from the boundary input value or the input value of region 1 (hereinafter, the boundary input value or the input value of region 1 will be referred to as the "comparison parameter"). As a result, the output unit 70 outputs an output value calculated from the current input value, along with an output value calculated from the boundary input value (the input value at the boundary between the OK region and the NG region) or the input value of region 1 (the OK region). Therefore, when there is a high concern about motion sickness (i.e., in the NG region), by displaying the deviation from the region where there is little concern about motion sickness (the OK region), the driver or other passengers can realize that their current driving is deviating from driving that does not cause motion sickness. 【0036】 In other words, the calculation unit 53 may calculate the operating amount and operating direction based on the comparison parameter in the first range when the parameter is in the second range. The controller 50 may then provide the output unit 70 with the operating amount and operating direction calculated based on the parameter, as well as the operating amount and operating direction calculated based on the comparison parameter. 【0037】 The calculation performed by the calculation unit 53 may result in a small slope of increase in the output value relative to the increase in the input value in region 3, which corresponds to an input value larger than that of region 2. Figure 4 shows an example in which a region with a sufficiently large index value within region 2 (NG region) is subdivided into region 3. In region 3, since the concern about intoxication is already sufficiently large, the controller 50 may keep the output value constant regardless of changes in the index value. In summary, as an example, regions 1 to 3 have the following properties. In this example, in region 2, the slope θ at the time of output is obtained by multiplying the maximum slope (MaxDeg: for example, 90°) by the index value a (=0 to 1). This makes it possible to present information proportional to the magnitude of the index value a, etc., that leads to intoxication. Region 1: Near 0, dead zone (e.g., slope θ = 0° at output) Region 2: Monotonically increasing (e.g., slope θ at output = MaxDeg*a) Region 3: Saturation (Example: Slope θ = MaxDeg at output) 【0038】 The determination unit 55 determines whether the occupant to whom the information presented by the output unit 70 (described later) is to be presented is the driver or a passenger. For example, the determination unit 55 may make a determination based on a flag set for each output unit 70. Alternatively, the determination unit 55 may make a determination based on the priority level calculated by the calculation unit 53. 【0039】 Furthermore, the determination unit 55 may determine whether the changes in the occupant's posture and behavior acquired via the sensor 20 correspond to the movement of the oscillating body. More specifically, it may determine whether the changes in the occupant's posture and behavior match or are similar to predetermined changes that have been pre-associated with the movement of the oscillating body. 【0040】 For example, the calculation unit 53 determines, based on sensor measurements, whether the driver or passenger who is the target of the current information presentation is able to act in accordance with the information presented to the output unit. For the driver, the calculation unit 53 may determine, based on the steering angular velocity and the acceleration generated in the vehicle, whether the magnitude and frequency of lateral acceleration have decreased compared to before the information was presented. For the passenger, the calculation unit 53 may determine whether they are able to lean their body as instructed by the presented information. 【0041】 The output unit 70 outputs an output value calculated by the controller 50, which changes according to the driving state, in a way that is perceptible to the occupants (driver and / or passengers). The output unit 70 outputs to the occupants concerns about motion sickness according to the output value calculated by the controller 50. In particular, the output unit 70 outputs the operation of the oscillating body to the occupants based on the amount of operation, direction of operation, and priority level. When the output unit 70 outputs, the operation output to the vehicle driver may be different from the operation output to passengers other than the driver. 【0042】 The output unit 70 outputs characters, agents, figures, etc., as a oscillating element to be presented to the occupant to prompt a change in the occupant's posture or driving operation. The output unit 70 may change at least one of the type of oscillating element and the timing of its operation based on whether the occupant is the driver or not. 【0043】 The output form corresponding to the output value from the output unit 70 may be expressed by the tilt of the character or agent's head, the shape of a figure, an image, color, light, or a change in sound. For this reason, the output unit 70 may be a display unit such as a display, a light-emitting device such as an LED, or a sound output unit such as a speaker. For example, multiple LEDs may be arranged in a line on the dashboard of a vehicle, and the number of LEDs that light up may increase or decrease on the left and right in accordance with the output value due to the left and right lateral acceleration. Furthermore, by arranging the colors so that green LEDs are used in region 1 and red LEDs are used in region 2, the arrival of region 2 may be made perceptible to the occupant. 【0044】 Here, the tilt during output can be in opposite directions depending on whether it is directed towards the driver or a passenger, as shown in the "Direction of Movement" column of Figure 5. For example, the output unit 70 may be tilted in the direction of lateral acceleration (acceleration) when directed towards the driver, and in the opposite direction to lateral acceleration (acceleration) when directed towards other passengers. This allows for an appropriate representation of the discrepancy between each passenger's perception (subjective sensation). 【0045】 One specific example of the output format is to simulate the way the occupants' bodies sway in response to the vehicle's motion, since the acceleration acting on the occupants is the cause of motion sickness, by outputting it as the tilt of the character's body. 【0046】 For example, when outputting the motion of the oscillating body to the driver, the output unit 70 may output an action that changes the oscillating body so that it faces forward of the vehicle and tilts the oscillating body in the direction in which the acceleration occurs, at the timing when a lateral acceleration acting on the vehicle or the occupants of the vehicle occurs. In the "Orientation of Oscillating Body" column of Figure 5, it is shown that the oscillating body faces forward of the vehicle, the same direction as the driver. In the "Timing" column, it is shown that the output of the motion of the oscillating body starts at the timing when the lateral acceleration occurs. 【0047】 When outputting the motion of the oscillating body to a passenger, the output unit 70 may output an action that changes the oscillating body so that it faces the rear of the vehicle and its front faces the passenger, and tilts the oscillating body in the opposite direction to the direction in which acceleration occurs, at a timing prior to the timing when lateral acceleration occurs. In the "Orientation of Oscillating Body" column of Figure 5, it is shown that the oscillating body faces the passenger. Also, in the "Timing" column, it is shown that the output of the motion of the oscillating body starts prior to the timing when lateral acceleration occurs. 【0048】 Here, the preceding timing may be set to a time predetermined time before the timing at which lateral acceleration occurs. Alternatively, the preceding timing may be set to the timing at which the vehicle passes a point predetermined distance before the point at which lateral acceleration occurs. 【0049】 The output unit 70 selects the occupant to whom the operation of the oscillating body will be output (information presentation). For example, the output unit 70 may prioritize selecting the occupant with the highest priority level from among two or more occupants, and output the operation of the oscillating body based on the amount of operation and direction of operation related to the selected occupant. 【0050】 For example, if the number of output units 70 provided by the information display device 100 is less than the number of occupants, the device will prioritize selecting occupants with higher priority levels and output the movement of the oscillating body based on the operating amount and operating direction related to the selected occupants. More specifically, the output unit 70 may compare the priority level calculated for the driver with the priority level calculated for the passengers and select the occupant with the higher priority level (either the driver or the passengers). The output unit 70 may then output the movement of the oscillating body based on the operating amount and operating direction related to the selected occupants. 【0051】 Furthermore, the output unit 70 may output the movement of the oscillating body based on the operating amount and operating direction related to a priority level greater than a predetermined threshold. This reduces the opportunities for the output unit 70 to output the movement of the oscillating body, thereby preventing the occupants from feeling bothered by the output of the oscillating body's movement. In particular, by appropriately selecting the predetermined threshold, the output unit 70 can be set to output the movement of the oscillating body only when it is necessary to output the movement of the oscillating body to the occupants. 【0052】 In addition, if a change in the occupant's posture corresponding to the movement of the oscillating body is detected, the output unit 70 may output a notification to the occupant indicating that the occupant's posture is a predetermined posture. 【0053】 If the occupant is not acting in accordance with the output of the rocking body's movement, the output unit 70 may execute a non-achieved output to prompt the occupant to act in accordance with the information presented. For example, the output unit 70 may display the difference between the desired body tilt and the current body tilt of the passenger, and provide information to guide the occupant to the desired body tilt. 【0054】 If the crew member is able to act in accordance with the information presented, the output unit 70 may execute an achievement output to communicate that the crew member has achieved the desired action. For example, the output unit 70 may display a design showing an expression on the front of a oscillating body, which may be represented by a character, agent, or graphic. If the crew member is able to act in accordance with the information presented, the output unit 70 may change the design so that the oscillating body shows a smile, and output an audio message indicating that the crew member has achieved the desired action. 【0055】 The information display device 100 may be a microcomputer, personal computer, or server computer, including an ECU (engine control unit) or CPU. In addition to a CPU or other arithmetic means, the information display device 100 may also include SRAM (Static Random Access Memory), small-capacity high-speed memory (e.g., cache memory), or storage units such as an HDD (Hard Disk Drive) or SSD (Solid State Drive), which are not shown in the diagram. It may also be a processor such as a CPU that has control means such as a controller 50, a control program such as an OS (Operating System), a program that defines various processing procedures, and internal memory for storing required data, and performs information processing to execute various processes using these programs. 【0056】 [Processing Procedure for Information Display Device] Next, the processing procedure of the information presentation device according to this embodiment will be described with reference to the flowchart in Figure 2. The processing of the information presentation device shown in Figure 2 may be started based on user instructions, or it may be executed repeatedly at predetermined intervals. 【0057】 First, in step S101, the acquisition unit 51 acquires parameters related to acceleration acting on the vehicle or the occupants of the vehicle. 【0058】 In step S103, the calculation unit 53 calculates the amount of operation and the direction of operation for each occupant based on the parameters. 【0059】 In step S105, the calculation unit 53 calculates a priority level for each occupant, indicating the priority for presenting the rocking body. 【0060】 In step S107, the output unit 70 selects the occupant to whom the operation of the oscillating body will be output (information presentation). At this time, the determination unit 55 may determine whether the occupant to whom the information presentation by the output unit 70 is to be presented is the driver or a passenger. 【0061】 In step S109, the operating amount and operating direction calculated for each crew member are obtained, and the operating amount and operating direction for the crew member selected as the crew member for whom information will be presented are acquired. 【0062】 In step S111, the output unit 70 outputs the movement of the oscillating body to the occupant based on the amount of operation, direction of operation, and priority level. After that, the processing of the information display device shown in Figure 2 is completed. 【0063】 [Effects of the Embodiment] As described in detail above, the information presentation device and information presentation method according to this embodiment calculate, for each occupant of a vehicle, the amount of movement or deformation of a oscillating body that prompts a change in the occupant's posture or driving operation, and the direction of movement or deformation of the oscillating body, based on parameters related to the acceleration acting on the vehicle or occupant. Then, for each occupant, a priority level indicating the priority of presenting the oscillating body is calculated. When outputting the movement of the oscillating body to the occupants based on the amount of movement, direction of movement, and priority level, the movement output to the vehicle driver is different from the movement output to passengers other than the driver. 【0064】 This helps to prevent drivers from performing driving maneuvers that could cause motion sickness, while also preventing users from finding the information presented to them overwhelming. Furthermore, it allows for the appropriate presentation of information to reduce motion sickness to both the driver and other passengers, depending on the situation. 【0065】 Furthermore, in the information presentation device and information presentation method according to this embodiment, the operating direction calculated for the passenger may be in the opposite direction to the lateral component of the acceleration of the vehicle. This makes it possible to provide passengers other than the driver with information to reduce motion sickness by controlling their own bodies by referring to the oscillating body. 【0066】 Furthermore, in the information presentation device and information presentation method according to this embodiment, the operating direction calculated for the driver may be in the same direction as the lateral component of the acceleration of the vehicle. This makes it possible to present the driver with a swaying body that simulates the body movements of passengers other than the driver. As a result, it is possible to provide information about body sway resulting from driving behaviors that can lead to motion sickness. 【0067】 Furthermore, the information display device and information display method according to this embodiment may prioritize selecting the occupant with the highest priority level from among two or more occupants, and output the movement of the oscillating body based on the amount of operation and direction of operation related to the selected occupant. This makes it possible to provide information to reduce motion sickness to occupants who are more likely to experience motion sickness when the number of output units is less than the number of occupants. 【0068】 Furthermore, the information display device and information display method according to this embodiment may output the movement of the oscillating body based on the operating amount and operating direction related to a priority level greater than a predetermined threshold. This allows for the appropriate selection of whether or not each output unit is necessary when there are two or more output units. In particular, it is possible to reduce the opportunities to output the movement of the oscillating body and suppress the occupant from feeling bothered by the output of the movement of the oscillating body. 【0069】 Furthermore, the information presentation device and information presentation method according to this embodiment may calculate an index value representing the degree of motion sickness of the occupants based on parameters, and calculate a priority level based on the index value. The priority level may be calculated based on the number of occupants. The priority level may be calculated based on the driver's driving time. The priority level may be calculated based on the road characteristics of the road on which the vehicle is traveling. The priority level may be calculated based on changes in the driver's driving habits. The stress level of the occupants may be calculated, and the priority level may be calculated based on the stress level. The priority level may be calculated based on flags set by the occupants. In this way, the priority level for information presentation to occupants (driver and / or passengers) can be appropriately calculated. 【0070】 Furthermore, the information presentation device and information presentation method according to this embodiment may change at least one of the type of oscillating body and the timing of its operation based on whether the occupant is the driver or not. This allows for more appropriate information presentation by the oscillating body to suit the occupant (driver and / or passenger). 【0071】 Furthermore, in the information presentation device and information presentation method according to this embodiment, the change in the amount of operation per unit change of the parameter in the second range, where the absolute value of the parameter is greater than the set value, may be greater than the change in the amount of operation per unit change of the parameter in the first range, where the absolute value of the parameter is less than or equal to the set value. This allows for division into a first range where the concern about motion sickness is small and a second range where it is large, and enables adjustment of output control in the first and second ranges. In addition, it is possible to suppress the feeling that the information presentation is cumbersome to the user. 【0072】 Furthermore, in the information display device and information display method according to this embodiment, the set value may be set based on the relationship between acceleration and the degree of motion sickness of the occupant. This allows for the setting value to be set such that the concern of motion sickness exceeds a certain level, and the concern of motion sickness can be appropriately communicated to the occupant. 【0073】 Furthermore, the information display device and information display method according to this embodiment may calculate the amount of operation and the direction of operation based on a comparison parameter in the first range when the parameter is in the second range, and output the amount of operation and the direction of operation calculated based on the comparison parameter in addition to the amount of operation and the direction of operation calculated based on the parameter. This is preferable because, if there is a high concern about motion sickness, the deviation from the area where there is a low concern about motion sickness can be displayed, making the driver aware that their current driving is deviating from driving that does not cause motion sickness. 【0074】 Furthermore, the information presentation device and information presentation method according to this embodiment may output a notification indicating that the occupant's posture is a predetermined posture when a change in the occupant's posture corresponding to the movement of the oscillating body is detected via a detection unit that detects the occupant's posture. This makes it possible to inform the occupant whether or not they were able to respond to the information presentation. 【0075】 [Other embodiments] Now, while embodiments of the present invention have been described above, the present invention may be implemented in various different embodiments within the scope of the technical idea described in the claims, in addition to the embodiments described above. 【0076】 For example, although the information display device 100 has been described as being configured as an integrated unit to perform processing in a standalone manner, it is not limited to this. It may also function as an external server, processing requests from in-vehicle client terminals and returning the processing results to the in-vehicle client terminals. In other words, the information display device 100 may be installed at any location within the vehicle, or it may be installed at a location remote from the vehicle, with the indicator values ​​transmitted to the vehicle via a communication network or the like and output to the vehicle's occupants. 【0077】 Furthermore, among the processes described in the embodiments, all or part of the processes described as being performed automatically can be performed manually, or all or part of the processes described as being performed manually can be performed automatically by known methods. 【0078】 In addition, the processing procedures, control procedures, specific names, information including parameters such as registration data and search conditions for each process, screen examples, and database configuration shown in the above-mentioned documents and drawings may be changed at will unless otherwise specified. 【0079】 Furthermore, with respect to the information display device 100, etc., each component shown in the illustration is a functional concept and does not necessarily have to be physically configured as shown. For example, the processing functions of each device of the information display device 100, particularly the processing functions performed by the controller 50, may be implemented in whole or in part by a processor such as a CPU (Central Processing Unit) and a program interpreted and executed by that processor, or they may be implemented as a wired logic hardware processor. The program is recorded on a non-temporary computer-readable recording medium (ROM or HDD, etc.) that includes programmed instructions for causing a computer to execute the method according to the present invention, as described later, and is mechanically read by the information display device 100 as needed. 【0080】 Furthermore, this computer program may be stored on an application program server connected to the information display device 100 via any network, and it is possible to download all or part of it as needed. 【0081】 Furthermore, the program according to the present invention may be stored on a computer-readable recording medium, or it may be configured as a program product. Here, "recording medium" includes any "portable physical medium" such as memory cards, USB memory, SD cards, flexible disks, magneto-optical disks, ROMs, EPROMs, EEPROMs, CD-ROMs, MOs, DVDs, and Blu-ray® Discs. 【0082】 Furthermore, "program" refers to a data processing method described in any language or writing method, regardless of its format, such as source code or binary code. Note that "program" is not necessarily limited to a single, monolithic structure; it also includes distributed structures consisting of multiple modules or libraries, and those that work in cooperation with other programs, such as an OS (Operating System), to achieve their functions. Regarding the specific configuration, reading procedure, and post-reading installation procedure for each device shown in the embodiments, well-known configurations and procedures can be used. The present invention may also be defined as a program product recorded on a non-temporary, computer-readable recording medium. 【0083】 Furthermore, the information display device 100 may be configured as a known information processing device such as a personal computer, ECU, or workstation, or it may be configured by connecting any peripheral device to the information processing device. Alternatively, the information display device 100 may be realized by implementing software (including programs, data, etc.) that realizes the method of the present invention on the information processing device. 【0084】 Furthermore, the specific forms of distribution and integration of the devices are not limited to those shown in the figures, and all or part of them can be functionally or physically distributed and integrated in any unit according to various additions or functional loads. In other words, the embodiments described above may be implemented in any combination, or the embodiments may be implemented selectively. [Explanation of symbols] 【0085】 20 sensors 50 controllers 51 Acquisition Department 53 Calculation Unit 55 Judgment section 70 Output section 100 Information presentation device

Claims

[Claim 1] An information display device mounted on a vehicle, comprising an acquisition unit, a controller, and an output unit, The acquisition unit is, A parameter related to the acceleration acting on the vehicle or the occupants of the vehicle is obtained. The aforementioned controller, For each occupant, the amount of movement of the oscillating body that causes a change in the occupant's posture or driving operation, and the direction of movement of the oscillating body are calculated based on the parameters. Based on the aforementioned parameters, an index value representing the degree of motion sickness of the occupants is calculated, and for each occupant, a priority level indicating the priority of presenting the rocking body is calculated such that the higher the index value, the higher the priority level. The output unit is, Based on the amount of operation, the direction of operation, and the priority level, the operation of the oscillating body is output to the occupant. The operating direction calculated for the driver of the vehicle among the occupants is in the same direction as the lateral component of the acceleration of the vehicle. The operating direction calculated for passengers other than the driver among the aforementioned occupants is in the opposite direction to the lateral component of the acceleration of the vehicle. An information display device characterized by the following. [Claim 2] An information display device according to claim 1, The output unit selects, prioritizing the occupant with the highest priority level among two or more occupants, and outputs the operation of the oscillating body based on the operating amount and operating direction related to the selected occupant. An information display device characterized by the following. [Claim 3] An information display device according to claim 1, The output unit outputs the operation of the oscillating body only to the occupant whose priority level is greater than a predetermined threshold. An information display device characterized by the following. [Claim 4] An information display device according to claim 1, The change in the operating quantity per unit change of the parameter in the second range, where the absolute value of the parameter is greater than the set value, is greater than the change in the operating quantity per unit change of the parameter in the first range, where the absolute value of the parameter is less than or equal to the set value. An information display device characterized by the following. [Claim 5] An information display device according to claim 4, The aforementioned controller, When the parameter is in the second range, the operating amount and operating direction are calculated based on the comparison parameter in the first range. The output unit is, In addition to the operating amount and operating direction calculated based on the aforementioned parameters, the operating amount and operating direction calculated based on the aforementioned comparison parameters are output. An information display device characterized by the following. [Claim 6] An information display device according to claim 1, The system further includes a detection unit for detecting the posture of the occupant, If the detection unit detects a change in the occupant's posture corresponding to the movement of the oscillating body, the output unit outputs a notification indicating that the occupant's posture is a predetermined posture. An information display device characterized by the following. [Claim 7] An information presentation method relating to an information presentation device mounted on a vehicle, comprising an acquisition unit, a controller, and an output unit, The acquisition unit is, A parameter related to the acceleration acting on the vehicle or the occupants of the vehicle is obtained. The aforementioned controller, For each occupant, the amount of movement of the oscillating body that causes a change in the occupant's posture or driving operation, and the direction of movement of the oscillating body are calculated based on the parameters. Based on the aforementioned parameters, an index value representing the degree of motion sickness of the occupants is calculated, and for each occupant, a priority level indicating the priority of presenting the rocking body is calculated such that the higher the index value, the higher the priority level. The output unit is, Based on the amount of operation, the direction of operation, and the priority level, the operation of the oscillating body is output to the occupant. The operating direction calculated for the driver of the vehicle among the occupants is in the same direction as the lateral component of the acceleration of the vehicle. The operating direction calculated for passengers other than the driver among the aforementioned occupants is in the opposite direction to the lateral component of the acceleration of the vehicle. An information presentation method characterized by the following.

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