Information presentation device, method, and program

Abstract

To provide an information presentation device capable of giving a sense of safety to a crewman on a travel road with continuous corners.SOLUTION: An on-vehicle unit 10 as an information presentation device comprises: an acquisition section for acquiring road information on a road in a travel direction of a vehicle 20; a generation section for generating corner information including curvature information of corners on the road in the travel direction based on the road information acquired by the acquisition section; and a provision section for collectively providing the corner information of at least two or more corners generated by the generation section to the crewman of the vehicle 20.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an information presentation device, an information presentation method, and an information presentation program. [Background technology]

[0002] Conventionally, there are many types of vehicle navigation systems. For example, there is a system that provides the occupant with information to determine an appropriate vehicle speed and steering angle according to road conditions, such as the technology disclosed in Patent Document 1. In addition, for example, the technology disclosed in Patent Document 2 indicates a plurality of consecutive dangerous areas in route guidance. This disclosed technology provides the occupant with information on the type and presence of dangerous areas, such as "U-turn ahead" or "crosswalk ahead when turning left." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4599932 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-132897 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the technology disclosed in Patent Document 1 only displays the shapes of each corner one by one, and on a road with a series of corners, the occupant may feel uneasy if they cannot predict the next corner.Furthermore, the technology disclosed in Patent Document 2 only displays the type and presence of dangerous areas, but does not display specific details such as how the steering should be performed at each corner, which may make the occupant feel uneasy.

[0005] The present invention has been made in consideration of the above points, and aims to provide an information presentation device, an information presentation method, and an information presentation program that can give occupants a sense of security on roads with continuous corners. [Means for solving the problem]

[0006] The information presentation device of the first aspect includes an acquisition unit that acquires road information for a road in the vehicle's traveling direction, a generation unit that generates corner information including curvature information for corners on the road in the traveling direction based on the road information acquired by the acquisition unit, and a provision unit that compiles the corner information for at least two or more of the corners generated by the generation unit and provides it to an occupant of the vehicle.

[0007] The information presentation device of the first aspect is configured to generate corner information based on acquired road information, and to provide the generated corner information for at least two or more corners together to a vehicle occupant. Here, the corner information includes curvature information related to the curvature of the corner. This information presentation device can give a sense of security to the occupant on a road with a series of corners.

[0008] The information presentation device of a second aspect is the information presentation device of the first aspect, wherein the provision unit changes at least one of the content and amount of the corner information based on the driving skill level of the driver who is the occupant.

[0009] According to the second aspect of the information presentation device, by changing the content and amount of corner information according to the driver's level of driving skill, it is possible to prevent the next corner information from being presented before the driver's understanding or vehicle operation can keep up.

[0010] The information presentation device of the third aspect is the information presentation device of the first aspect, wherein the acquisition unit acquires detection information from a sensor mounted on the vehicle, and the generation unit generates the corner information based on the detection information and the road information.

[0011] The information presentation device of the third aspect is configured to obtain, from a sensor, road conditions when a vehicle has previously passed through the road as detection information, and to generate corner information by adding the detection information to road information. This information presentation device can present corner information based on more detailed road conditions such as road surface information.

[0012] An information presentation device of a fourth aspect is the information presentation device of any one of the first to third aspects, wherein, when there is a dangerous spot at the corner, the generation unit generates an instruction word that calls attention to driving operations at the dangerous spot.

[0013] According to the information presentation device of the fourth aspect, by presenting information that prompts the driver to be careful about driving operations in dangerous places, it is possible to give the occupants a greater sense of security.

[0014] An information presentation device of a fifth aspect is the information presentation device of any one of the first to third aspects, wherein the generation unit generates a demonstrative term that indicates a driving line of the road according to the shape of the successive corners.

[0015] According to the information presentation device of the fifth aspect, by presenting information about the driving line according to the shape of the corner, the driver can smoothly drive the vehicle through each corner.

[0016] A sixth aspect is an information presentation method in which a computer executes a process of acquiring road information for a road in the direction of travel of a vehicle, generating corner information including curvature information for corners on the road in the direction of travel based on the acquired road information, compiling the generated corner information for at least two or more of the corners, and providing the information to an occupant of the vehicle.

[0017] A seventh aspect is an information presentation program that causes a computer to execute a process of acquiring road information for a road in the vehicle's traveling direction, generating corner information including curvature information for corners on the road in the traveling direction based on the acquired road information, and compiling the generated corner information for at least two or more of the corners and providing it to an occupant of the vehicle. [Effects of the Invention]

[0018] According to the present invention, it is possible to give a sense of security to occupants on a road with successive corners. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a block diagram showing a schematic configuration of an information presentation system. [Figure 2] FIG. 2 is a block diagram showing the hardware configuration of a vehicle. [Figure 3] FIG. 2 is a block diagram showing the functional configuration of the vehicle-mounted device. [Figure 4] 10 is a diagram for explaining the relationship between a combination of occupant information and vehicle information and level information. FIG. [Figure 5] 10 is a diagram for explaining the relationship between the steering angle of the steering wheel and the curvature symbol; FIG. [Figure 6] FIG. 10 is a diagram for explaining generated corner information. [Figure 7] 10A and 10B are diagrams for explaining the content of information presented in corners according to level information. [Figure 8] FIG. 10 is a diagram for explaining an example in which corner information is displayed as icons. [Figure 9] FIG. 2 is a diagram illustrating an example of a display screen of a vehicle. [Figure 10] 10 is a flowchart illustrating an example of a level setting process. [Figure 11] 10 is a flowchart illustrating an example of an information presentation process. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, an information presentation system 100 according to this embodiment includes an in-vehicle device 10 as an information presentation device, a vehicle 20, and a center server 30. The vehicle-mounted device 10 is connected to the center server 30 via a communication line N, and transmits and receives data to and from the center server 30. The center server 30 provides road information such as road traffic volume, road restriction status, road surface condition, etc. to the vehicle-mounted device 10 of the vehicle 20. The number of vehicle-mounted devices 10 and the number of center servers 30 included in the information presentation system 100 are not limited to the example of FIG. 1, and two or more vehicle-mounted devices 10 and two or more center servers 30 may be included.

[0021] 2 shows a hardware configuration of a vehicle 20 including the vehicle-mounted device 10. As shown in Fig. 2, the vehicle-mounted device 10 has a CPU (Central Processing Unit) 42, a memory 44, a storage device 46, an in-vehicle communication I / F (Interface) 48, an input device 52, an output device 54, a storage medium reading device 56, and a wireless communication I / F 58. The CPU 42, memory 44, storage device 46, in-vehicle communication I / F 48, input device 52, output device 54, storage medium reading device 56, and wireless communication I / F 58 are connected to each other via an internal bus 59 so as to be able to communicate with each other.

[0022] The CPU 42 is a central processing unit that executes various programs and controls each component. That is, the CPU 42 reads the programs from the storage device 46 and executes the programs using the memory 44 as a work area. The CPU 42 controls each component and performs various arithmetic operations in accordance with the programs stored in the storage device 46.

[0023] The memory 44 is configured by RAM (Random Access Memory) and serves as a working area for temporarily storing programs and data. The storage device 46 is configured with a ROM (Read Only Memory), an HDD (Hard Disk Drive), an SSD (Solid State Drive), etc., and stores various programs including an operating system and various data. The storage device 46 stores an information presentation program for executing the information presentation process described below.

[0024] The in-vehicle communication I / F 48 is an interface for connecting to each ECU (Electronic Control Unit) 22. The interface uses a communication standard based on the CAN (Controller Area Network) protocol. The in-vehicle communication I / F 48 is connected to the external bus 21.

[0025] The input device 52 is a device for allowing the occupant to input various information. Examples of the input device 52 include steering switches and a touchpad provided on the steering wheel, a touch panel provided on the dashboard, and a controller provided on the center console. The input device 52 may also be a microphone provided in the vehicle cabin as a voice input means. The output device 54 is a device for outputting various types of information to the occupants. Examples of the output device 54 include a center display, a head-up display, and a meter display as display means, and a speaker as audio output means. A touch panel display may be used as the output device 54, which may function as the input device 52.

[0026] The storage medium reader 56 reads data stored in various storage media such as CD (Compact Disc)-ROM, DVD (Digital Versatile Disc)-ROM, Blu-ray Disc, and USB (Universal Serial Bus) memory, and writes data to the storage media.

[0027] The wireless communication I / F 58 is an interface for communicating with other devices including the center server 30. For this communication, a wireless communication standard such as 4G, 5G, or Wi-Fi (registered trademark) is used.

[0028] The ECU 22 includes at least an ECU 22A, an ECU 22B, and an ECU 22C. The ECU 22A is exemplified by an ADAS (Advanced Driver Assistance System) ECU or an ECU for a drive recorder. A camera 24 is connected to the ECU 22A. The camera 24 is provided as a sensor that captures images of the periphery of the vehicle 20. The ECU 22B is exemplified by a steering ECU. A sensor 26 that detects the steering angle is connected to the ECU 22B. The ECU 22C is exemplified by a multimedia ECU that controls a car navigation system. A GPS (Global Positioning System) device 28 is connected to the ECU 22C. The GPS device 28 is a device that measures the current position of the vehicle 20. The GPS device 28 includes an antenna (not shown) that receives signals from GPS satellites. The GPS device 28 may be connected directly to the vehicle-mounted device 10 instead of to the ECU 22C.

[0029] Next, the functional configuration of the vehicle-mounted device 10 according to this embodiment will be described with reference to Fig. 3. As shown in Fig. 3, the vehicle-mounted device 10 according to this embodiment functions as an acquisition unit 12, a generation unit 14, and a provision unit 16 by the CPU 42 executing an information presentation program stored in the storage device 46.

[0030] The acquisition unit 12 has a function of acquiring at least road information, position information, detection information, occupant information, and vehicle information. The acquisition unit 12 of this embodiment acquires road information from the center server 30 via the communication network N. The acquisition unit 12 may acquire road information stored in the vehicle-mounted device 10. Here, the road information includes map information and surrounding area information. The map information is electronic data related to a map including a driving route. The surrounding area information includes information directly related to the road, such as road traffic volume, restriction status, and road surface condition, and information that affects the road, such as weather and climate.

[0031] Moreover, the acquisition unit 12 of this embodiment acquires location information from the GPS device 28 or the like. The location information is information about the current location of the vehicle 20. The acquisition unit 12 of this embodiment acquires detection information via a camera 24, a sensor 26, or the like mounted on the vehicle 20. Here, the detection information includes, for example, road surface information. The road surface information is information about the state of the road surface (for example, gaps and slipperiness of the road surface).

[0032] The acquisition unit 12 of this embodiment also acquires a driving skill level as occupant information input from the input device 52 of the vehicle 20. The acquisition unit 12 may also acquire a driving skill level that is automatically determined by the vehicle 20 based on the driver's driving history. The acquisition unit 12 of this embodiment also acquires vehicle information input from the input device 52 of the vehicle 20. The acquisition unit 12 may also acquire vehicle information that is pre-stored in the memory 44 of the in-vehicle device 10.

[0033] The generation unit 14 has a function of generating corner information for the road in the traveling direction of the vehicle. As a preprocessing for the main function, the generation unit 14 combines the occupant information and vehicle information acquired by the acquisition unit 12 to set level information. The level information is a standard level for adjusting the content and amount of information that assists the driver in driving the vehicle 20.

[0034] The occupant information includes information on the driving skill level of the driver in the vehicle 20 (hereinafter referred to as "driving skill level"). In this embodiment, the driving skill level is defined as a label that represents the driver's driving skill in four stages. Specifically, as the driving skill improves, it changes in the order of "general user level," "beginner level," "intermediate level," and "advanced level." In addition, the occupants, including the driver, can freely set the driving skill level using the input device 52 of the vehicle 20.

[0035] On the other hand, the vehicle information is a label defined for each output of the engine or motor of the vehicle 20. Below, an example of a label defined for each engine output will be described. Specifically, in this embodiment, the vehicle information is classified into one of three types: "low engine power," "medium engine power," and "high engine power." For example, when allocating engine power based on the displacement of the vehicle, it can be allocated as follows: "Low engine power" is assigned to vehicles with an engine displacement of 1500cc or less. "Medium engine power" is assigned to vehicles with an engine displacement of over 1500cc and up to 2000cc. "High Engine Power" is assigned to vehicles with an engine displacement of over 2000cc.

[0036] The reason for classifying vehicle information by engine power is that the higher the engine power, the more advanced the driving skill required. For example, when driving a vehicle with a large engine displacement, acceleration is higher and the vehicle speed is more likely to increase than when driving a vehicle with a small engine displacement. In addition to the engine displacement, factors that affect driving skills include the presence or absence of a supercharger, vehicle weight, etc. Therefore, the vehicle information may be set based not only on the engine displacement but also on the presence or absence of a supercharger and vehicle weight.

[0037] In this embodiment, the level information is set for a combination of the occupant information and the vehicle information. More specifically, the level information shown in FIG. 4 is set for a combination of the occupant information and the vehicle information by a level setting process described later.

[0038] The generation unit 14 generates corner information based on the road information acquired by the acquisition unit 12. More specifically, the generation unit 14 determines whether or not there is a corner on the road in the travel direction and generates corner information based on at least map information among the road information acquired by the acquisition unit 12. Here, the corner information includes curvature symbols of the road corners, conjuncts, and information related to demonstrative terms.

[0039] The curvature symbol is information indicating the steering angle of the steering wheel 60 presented to the driver when the vehicle 20 passes through a corner. Specifically, as shown in FIG. 5, the curvature symbol is a symbol combining a letter (L or R) indicating the direction in which the driver turns the steering wheel 60 and a steering angle number assigned according to the steering angle. In FIG. 5, "L" stands for "Left" and indicates the direction in which the driver turns the steering wheel 60 to the left. On the other hand, "R" stands for "Right" and indicates the direction in which the driver turns the steering wheel 60 to the right. The steering angle number is assigned so that the smaller the numerical value, the larger the steering angle. Note that the generation unit 14 may generate curvature sentences that specifically explain the shape of the corner, etc., instead of the curvature symbol. The curvature symbol and curvature sentences are examples of curvature information.

[0040] FIG. 6 is a diagram for explaining a plurality of pieces of generated corner information, and is a diagram simply showing the correspondence between the curvature symbol, the change symbol, and the demonstrative term for each corner. The transition symbols are symbols that indicate a change in road width at a corner and are represented by ">" and "<". The ">" symbol is called "tight" and indicates that the road width narrows from the entrance to the exit of the corner, while the "<" symbol is called "open" and indicates that the road width widens from the entrance to the exit of the corner.

[0041] The instruction words are symbols for instructing the recommended driving method to the driver of the vehicle 20. The instruction words include risk instruction words and driving line instruction words. Risk indicators are phrases that call attention to driving operations in dangerous areas. Examples of risk indicators include "caution" to call attention to the road ahead, "brake" to call attention to deceleration, and "slow" to call attention to driving slowly. The driving line indicator is a phrase that indicates the driving line on the road. Examples of driving line indicators include "keep in" to encourage driving on the inside of the corner, "keep out" to encourage driving on the outside of the corner, and "enter from the left" to encourage entering the corner from the left side.

[0042] The above curvature symbols, change symbols, and demonstrative words are not limited to those described above, and may be set, for example, based on the terminology of rallies, a type of motor racing, so as to make it easier for the driver to understand how to operate the vehicle 20.

[0043] The indicator is generated based on the detection information acquired by the acquisition unit 12. Specifically, when it is determined from the detection information that the drive wheels of the vehicle 20 are spinning or that one of the wheels is locked, the generation unit 14 generates a risk indicator. The generation unit 14 may also generate a risk indicator based on weather information included in the surrounding information acquired by the acquisition unit 12. Furthermore, when the shape of the road corner is determined based on the steering angle during cornering included in the detection information or a captured image of the corner, the generation unit 14 generates a driving line indicator.

[0044] The providing unit 16 has a function of providing the driver with a collection of corner information on a plurality of corners on a road in the traveling direction of the vehicle 20. Specifically, the providing unit 16 provides the driver with a collection of corner information on a plurality of corners including the nearest corner, based on the current position of the vehicle 20, which is the position information acquired by the acquiring unit 12. Furthermore, the providing unit 16 of this embodiment changes at least one of the content and amount of corner information of a plurality of consecutive corners based on the level information set by the generating unit 14.

[0045] 7 is a diagram illustrating corner information provided to the driver for each level of information. The corner information corresponding to each level of information is displayed as an image on a head-up display serving as the output device 54, or output as sound to a speaker serving as the output device 54.

[0046] First, when the level information is for a general user, corner information is provided as a curvature sentence for two corners at a time. The content of the curvature sentence is a sentence that describes the direction of the corner and the degree of turning, such as "There are successive left corners that become gradually sharper." Note that the corner information is not replaced with an abbreviated form.

[0047] Next, if the level information is beginner level, the corner information provides curvature symbols and risk indicators for two corners at a time. In this case, the corner information includes curvature symbols such as "L5·5" and risk indicators such as "slow." Note that the corner information is not replaced with abbreviations.

[0048] Next, if the level information is intermediate level, the curvature symbols and alternation symbols for two or more corners are provided as corner information at once. In this case, the corner information is a combination of curvature symbols and alternation symbols for three corners, for example, "R6·L5<>5". Note that the corner information is not replaced with abbreviated forms.

[0049] Finally, when the level information is at the advanced driver level, corner information is provided, consisting of curvature symbols, transition symbols, and driving line indicators for two or more corners at a time. In this case, the corner information is a combination of the curvature symbols, transition symbols, and driving line indicators for two corners, such as "L5<>5 in." Note that at the advanced driver level, corner information can also be abbreviated. For example, if the steering wheel 60 needs to be turned, such as "R3·L7," and the angle of the second corner is gentle, the curvature symbol for the second corner can be omitted and replaced with "R3Z." By shortening the output words through such substitutions, the advantage is that the corner information is easier for the driver to recognize, even when driving at high speeds, as would be expected for a driver with advanced driving skill level.

[0050] FIG. 8 is a diagram showing corner information in the form of icons as an example of the content that the providing unit 16 outputs to the output device 54. The meanings of the icons in the left column of Figure 8 are listed below. The corner curvature information icon is an icon consisting of a curvature symbol and an image of the corner shape. The exit visibility icon is an icon that uses ">" or "<" to indicate whether the exit is visible depending on the road width of the corner. The road width change icon is an icon that indicates whether the road width will widen or narrow. The surrounding caution icon is an exclamation mark icon that calls attention. The poor visibility icon is a question mark icon that indicates that it is difficult to see the surroundings (indicating that it is unknown what is there). The downhill / uphill icon is an icon that shows the slope of the road. The bumpy road caution icon is an icon that calls attention to the unevenness of the road surface.

[0051] FIG. 9 is a diagram showing, as an example, a plurality of corner information items that the providing unit 16 displays on a display screen 70 of a monitor that is the output device 54. In FIG. As shown in Figure 9, multiple icons and instruction word text are displayed simultaneously in an appropriate combination for corner information for at least two or more corners. For example, a curvature information icon and an exit visibility icon are displayed as corner information for a first corner from approximately the center to the left side of the display screen 70, and a curvature information icon and a road width change icon are displayed as corner information for a second corner in the upper right corner of the display screen 70. In this case, the display related to the second corner information is displayed smaller than the display related to the first corner information. Then, on the display screen 70, a risk instruction word consisting of text such as "recommend slowing down" is displayed below the corner information for the first corner. The number of icons, the type of display, the arrangement, etc. are not limited to the example shown in FIG.

[0052] Next, the operation of the information presentation system 100 according to this embodiment will be described. The vehicle-mounted device 10 executes a level setting process shown in Fig. 10 and an information presentation process shown in Fig. 11. Each process in the vehicle-mounted device 10 is executed by the CPU 42 functioning as the acquisition unit 12, the generation unit 14, and the provision unit 16. The information presentation process is an example of an information presentation method of the present invention.

[0053] The level setting process will be described with reference to FIG.

[0054] In step S101, the CPU 42 acquires the driving purpose input from the input device 52 of the vehicle-mounted device 10. Next, in step S103, the CPU 42 determines whether the driver's use of the vehicle 20 is for sports driving. If the CPU 42 determines that the vehicle 20 is not for sports driving (step S103: NO), the process proceeds to step S105. On the other hand, if the CPU 42 determines that the vehicle 20 is for sports driving (step S103: YES), the process proceeds to step S107.

[0055] In step S105, the CPU 42 sets the level information to the general user level, and then ends the process. Next, in step S107, the CPU 42 acquires occupant information and vehicle information.

[0056] Next, in step S109, the CPU 42 determines whether the driving skill level of the driver of the vehicle 20 exceeds the beginner level. If the CPU 42 determines that the driving skill level does not exceed the beginner level (step S109: NO), the CPU 42 proceeds to step S111. On the other hand, if the CPU 42 determines that the driving skill level exceeds the beginner level (step S109: YES), the CPU 42 proceeds to step S113.

[0057] In step S111, the CPU 42 sets the level information to the beginner level, and then ends the process. Next, in step S113, the CPU 42 determines whether the driving skill level of the driver of the vehicle 20 exceeds the intermediate level. If the CPU 42 determines that the driving skill level does not exceed the intermediate level (step S113: NO), the CPU 42 proceeds to step S115. On the other hand, if the CPU 42 determines that the driving skill level exceeds the intermediate level (step S113: YES), the CPU 42 proceeds to step S119.

[0058] In step S115, the CPU 42 determines whether the engine displacement of the vehicle 20 is 2000 cc or less. If the CPU 42 determines that the engine displacement of the vehicle 20 is not 2000 cc or less (step S115: NO), the process proceeds to step S119. On the other hand, if the CPU 42 determines that the engine displacement of the vehicle 20 is 2000 cc or less (step S115: YES), the process proceeds to step S117. In step S117, the CPU 42 sets the level information to the intermediate level, and then ends the process.

[0059] Next, in step S119, the CPU 42 determines whether the displacement of the vehicle 20 exceeds 1500 cc. If the CPU 42 determines that the displacement of the vehicle 20 does not exceed 1500 cc (step S119: NO), the process proceeds to step S117. On the other hand, if the CPU 42 determines that the displacement of the vehicle 20 exceeds 1500 cc (step S119: YES), the process proceeds to step S121. In step S121, the CPU 42 sets the level information to the advanced level, and then ends the process.

[0060] The information presentation process will be described with reference to FIG. In step S201, the CPU 42 acquires road information, position information, and detection information. Next, in step S202, the CPU 42 generates corner information based on the road information and detection information.

[0061] Next, in step S203, the CPU 42 presents to the driver a collection of corner information for a plurality of corners, including the nearest corner, based on the current position of the vehicle 20, which is the position information acquired by the acquisition unit 12. At this time, the corner information generated in step S202 is presented in accordance with the level information set in the level setting process. Then, the information presentation process ends.

[0062] (summary) As described above, this embodiment acquires road information in the traveling direction of the vehicle 20, generates corner information including curvature information of corners on the road in the traveling direction, and compiles the corner information for at least two or more corners to provide to the driver of the vehicle 20. Therefore, this embodiment can give the driver of the vehicle 20 a sense of security on a road with a series of corners.

[0063] Furthermore, this embodiment changes at least one of the content and amount of corner information based on the driving skill level of the driver of the vehicle 20. Therefore, according to this embodiment, by changing the content and amount of corner information according to the driving skill level of the driver, it is possible to prevent the next corner information from being presented before the driver's understanding or operation of the vehicle 20 can keep up.

[0064] Furthermore, this embodiment acquires detection information from the camera 24, sensor 26, etc. mounted on the vehicle 20 when the vehicle passes over a road in advance, and generates corner information based on the detection information and road information. Therefore, this embodiment can present corner information based on more detailed road conditions such as road surface information.

[0065] Furthermore, in this embodiment, when a dangerous spot is present at a corner, an instruction word is generated to prompt the driver to take appropriate driving precautions in the dangerous spot. Therefore, according to this embodiment, by presenting information to prompt the driver to take appropriate driving precautions in the dangerous spot, it is possible to give the driver a greater sense of security.

[0066] Furthermore, this embodiment generates a reference word that indicates the driving line on the road according to the shape of successive corners. Therefore, according to this embodiment, by presenting information on the driving line according to the shape of the corners, the driver can smoothly pass through each corner.

[0067] In this embodiment, the corner information is presented to the driver, but this is not limited to this. The corner information may be presented to an occupant in the passenger seat or the like, and the occupant may present the corner information to the driver.

[0068] (remarks) The information presentation process executed by the CPU after reading the software (program) in the above embodiment may be executed by various processors other than the CPU. Examples of such processors include programmable logic devices (PLDs) such as field-programmable gate arrays (FPGAs), whose circuit configuration can be changed after fabrication, and dedicated electrical circuits such as application-specific integrated circuits (ASICs), which are processors with circuit configurations specifically designed to execute specific processes. The transmission process may be executed by one of these processors, or by a combination of two or more processors of the same or different types (e.g., multiple FPGAs, or a combination of a CPU and an FPGA). The hardware structure of these processors is, more specifically, an electrical circuit that combines circuit elements such as semiconductor devices.

[0069] In the above embodiment, the information presentation program is pre-stored (installed) in a storage device, but the present invention is not limited to this. The program may be provided in a form recorded on a recording medium such as a CD-ROM, a DVD-ROM (Digital Versatile Disc Read Only Memory), or a USB (Universal Serial Bus) memory. The program may also be downloaded from an external device via a network. [Explanation of symbols]

[0070] 10 Onboard equipment (information presentation device) 12 Acquisition Department 14 Generation part 16 Providing Department 20 vehicles 26 sensors

Claims

1. an acquisition unit that acquires road information for a road in a traveling direction of a vehicle; a generation unit that generates corner information including curvature information of corners on the road in the traveling direction based on the road information acquired by the acquisition unit; a providing unit that compiles the corner information for at least two or more of the corners generated by the generating unit and provides the compiled information to an occupant of the vehicle; Including, The generation unit If there is a dangerous spot at the corner, an instruction word is generated to prompt the driver to take caution in driving operations at the dangerous spot; generating an instruction word indicating a driving line of the road according to the shape of the successive corners; The acquisition unit further acquires information indicating a driving skill level of a driver who is the occupant and information indicating an output of the vehicle, The providing unit When the driving skill level is a first level, the curvature information for a predetermined number of corners is provided to the occupant as the corner information regardless of the output of the vehicle; when the driving skill level is a second level higher than the first level, the corner information is provided to the occupant in combination with the curvature information for the predetermined number of corners and an instruction word that calls attention to driving operations at the dangerous location, regardless of the output of the vehicle; When the driving skill level is a predetermined level higher than the second level, the curvature information for the predetermined number of corners or more is provided to the occupant in combination with information of a type different from the curvature information, and whether to add an instruction word indicating a driving line on the road is changed according to the output of the vehicle. Information presentation device.

2. The acquisition unit Acquire detection information from a sensor mounted on the vehicle; The generation unit The information presentation device according to claim 1 , wherein the corner information is generated based on the detection information and the road information.

3. Obtaining road information for a road in the direction of travel of the vehicle; generating corner information including curvature information of corners on the road in the traveling direction based on the acquired road information; The generated corner information for at least two or more of the corners is compiled and provided to an occupant of the vehicle; If there is a dangerous spot at the corner, an instruction word is generated to prompt the driver to take caution in driving operations at the dangerous spot; generating an instruction word indicating a driving line of the road according to the shape of the successive corners; Further, information indicating a driving skill level of the driver who is the occupant and information indicating an output of the vehicle are acquired; When the driving skill level is a first level, the curvature information for a predetermined number of corners is provided to the occupant as the corner information regardless of the output of the vehicle; when the driving skill level is a second level higher than the first level, the corner information is provided to the occupant in combination with the curvature information for the predetermined number of corners and an instruction word that calls attention to driving operations at the dangerous location, regardless of the output of the vehicle; When the driving skill level is a predetermined level higher than the second level, the curvature information for the predetermined number of corners or more is provided to the occupant in combination with information of a different type from the curvature information, and whether or not to add an instruction word indicating the driving line on the road is changed according to the output of the vehicle. A method of presenting information in which processing is performed by a computer.

4. Obtaining road information for a road in the direction of travel of the vehicle; generating corner information including curvature information of corners on the road in the traveling direction based on the acquired road information; The generated corner information for at least two or more of the corners is compiled and provided to an occupant of the vehicle; If there is a dangerous spot at the corner, an instruction word is generated to prompt the driver to take caution in driving operations at the dangerous spot; generating an instruction word indicating a driving line of the road according to the shape of the successive corners; Further, information indicating a driving skill level of the driver who is the occupant and information indicating an output of the vehicle are acquired; When the driving skill level is a first level, the curvature information for a predetermined number of corners is provided to the occupant as the corner information regardless of the output of the vehicle; when the driving skill level is a second level higher than the first level, the corner information is provided to the occupant in combination with the curvature information for the predetermined number of corners and an instruction word that calls attention to driving operations at the dangerous location, regardless of the output of the vehicle; When the driving skill level is a predetermined level higher than the second level, the curvature information for the predetermined number of corners or more is provided to the occupant in combination with information of a different type from the curvature information, and whether or not to add an instruction word indicating the driving line on the road is changed according to the output of the vehicle. An information presentation program that causes a computer to execute processing.

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