Traveling guidance system and traveling guidance program

Abstract

To improve a degree of relief and safety in an area in which a view in a mountain path or the like is obstructed and at the time of nighttime driving by presenting an optimum amount of information corresponding to a driver at optimum timing during traveling.SOLUTION: A traveling guidance system is configured so as to calculate distance L that can be passed and the number of corners N existing in the range of the distance L with time (t) that a driver can remember as basic information at a current speed of a vehicle 12, and to present information on the corners at a time with time and trouble of the first corner. Accordingly, since the amount of information that a driver can remember is presented at optimum timing, a sense of safety and a degree of safety at the time of traveling in a complex travel path, such as a travel path having a short interval between corners, and in a travel path under environment in which a visual field is poor can be improved.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a driving guidance system and a driving guidance program that provide guidance on road conditions along a driving route while a vehicle is traveling. [Background technology]

[0002] Conventionally, there has been known a guidance system (navigation device) that is mounted on a vehicle such as an automobile and that uses a position measurement device called a GPS (Global Positioning System) and various sensors to display the current position of the vehicle to the driver of the vehicle and search for and display a route to a destination.

[0003] In addition, when a vehicle equipped with a navigation system approaches a point where it is difficult to judge the safety situation, such as a corner, a technology has been proposed to alert the driver by emitting a warning sound for the corner ahead of the vehicle, changing the color of the road displayed on the map screen of the display unit, or displaying a warning mark.

[0004] Patent Document 1 describes that by providing the driver with appropriate information to determine the appropriate vehicle speed and steering angle according to road conditions, the burden on the driver can be reduced even when traveling in places where decisions regarding a variety of matters must be made, thereby contributing to safe vehicle driving.

[0005] For this reason, Patent Document 1 has a memory means for storing map data, a display unit for displaying information, a vehicle speed sensor for detecting vehicle speed, and a control unit for determining the display shape of the road section ahead in the direction of travel based on the map data and the vehicle speed, and displaying the display shape of the road section on the display unit. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-47198 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in order to drive safely and securely in areas with poor visibility such as mountain roads, in bad weather such as fog, rain or snow, or at night, it is useful to present information about the shape of the road, i.e., the situation at intersections and curves, but conventional technologies including Patent Document 1 may not present information at the appropriate time.

[0008] In particular, it is difficult to determine the timing for presenting information about complex roads and the parameters for the amount of information to be presented at one time.

[0009] In other words, if the timing of information presentation is too late compared to the appropriate timing, the driver may not be able to operate the vehicle in time. On the other hand, if the timing of information presentation is too early compared to the appropriate timing, the driver may forget if too much information is presented at once. In other words, the timing of information presentation is an extremely important factor.

[0010] Taking the above facts into consideration, the present invention aims to provide a driving guidance system and a driving guidance program that can improve the level of security and safety when driving in areas with poor visibility, such as mountain roads, or at night, by presenting the optimal amount of information according to the driver at the optimal timing while driving. [Means for solving the problem]

[0011] The driving guidance system of the present invention is a driving guidance system that provides guidance on road conditions along a driving route while a vehicle is driving, and is characterized by calculating the distance that can be traveled in a preset time at the current vehicle speed and the number of corners that will be passed on the driving route, and outputting driving route information that provides advance guidance on corner locations.

[0012] In the travel guidance system according to the present invention, the predetermined time is a time during which a person can memorize information, which is set based on the results of verification of a person's memory ability.

[0013] The driving guidance system of the present invention includes an extraction unit that extracts corner points from map data of a driving route along which a vehicle is to travel; a calculation unit that calculates, based on the vehicle's driving data and a predetermined time, distance information traveled during the time and information on the number of corner points on the driving route that can be passed through during the time; a generation unit that generates driving route information for driving guidance including a plurality of corner points from the distance information calculated by the calculation unit and the information on the number of corner points; and an output unit that outputs the driving route information generated by the generation unit to the driver, before the first of the plurality of corner points included in the driving route information.

[0014] In the travel guidance system according to the present invention, the predetermined time is a time during which a person can memorize information, which is set based on the results of verification of a person's memory ability.

[0015] In the driving guidance system of the present invention, if the amount of driving route information presented during the preset time is greater than the amount of information that a person can remember, part of the driving route information is repeatedly presented while driving.

[0016] In the driving guidance system according to the present invention, the driving route information is presented a predetermined time before the first corner point that is set depending on the vehicle speed, and if there is an unpassed corner point after the predetermined time has elapsed since the time the driving route information was presented, the unpassed corner point is repeatedly presented.

[0017] In the driving guidance system of the present invention, the output unit is characterized in that it includes one or more of the following notification forms: a notification form through hearing, a notification form through vision, a notification form using cutaneous sensation, a notification form using a wearable device, a notification form using a helmet, a notification form using an implanted chip, and a notification form using the seat of the vehicle.

[0018] A travel guidance program according to the present invention is characterized in that it causes a computer to operate as the extraction unit, calculation unit, generation unit, and output unit of the travel guidance system. [Effects of the Invention]

[0019] As described above, the present invention has the effect of improving the level of security and safety when driving in areas with poor visibility, such as mountain roads, or at night, by presenting the optimal amount of information according to the driver at the optimal timing while driving. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic configuration diagram of a vehicle equipped with a travel guidance system according to an embodiment of the present invention. [Figure 2] 1 is a schematic configuration diagram in which controls for operating a travel guidance system according to an embodiment of the present invention are classified by function. [Figure 3] This is a plan view of a curved road that clarifies the broad and narrow definitions of a corner. (A) is a curve in the narrow sense, and (B) is a corner in the narrow sense (both are corners in the broad sense). [Figure 4] These are characteristic diagrams showing the results of verification experiments on human memory ability, where (A) is a characteristic diagram showing the results of an experiment to determine the amount of driving information that a driver can remember, and (B) is a characteristic diagram showing the results of an experiment to determine the amount of time that a driver can retain driving information. [Figure 5] 3 is a control flowchart for executing the travel guidance system according to the present embodiment. [Figure 6]6 shows a first example of a driving simulation (steady-state information presentation) performed under the processing based on the flowchart of FIG. 5 in the driving guidance system of the present embodiment. [Figure 7] 10 shows a second example of a driving simulation (special information presentation) performed under the processing based on the flowchart of FIG. 5 in the driving guidance system of this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] FIG. 1 is a schematic diagram of a vehicle 12 equipped with a travel guidance system 10 according to the present embodiment.

[0022] The vehicle 12 is equipped with a vehicle control device 14, which controls the operating devices of the drive system and electrical system in response to driving operations by the driver.

[0023] A GPS 16 is connected to the vehicle control device 14. The GPS 16 stores map data of the driving range, recognizes the driving position while the driver is driving, and displays the map and the current position on a monitor, for example.

[0024] Cameras 18 (here, a front camera 18A and a rear camera 18B) are also connected to the vehicle control device 14, and monitor the situation around the vehicle 12 while it is traveling. The cameras 18 can also be used, for example, to obtain information for automatic driving of the vehicle 12 (including auxiliary functions such as automatic braking), and may be added with cameras that capture images in the left and right directions of the vehicle 12 (a left front camera, a left rear camera, a right front camera, and a right rear camera) or sensors such as LiDAR (Light Detection and Ranging). LiDAR can measure the distance to an object and capture the properties of the object by illuminating the target with laser light and analyzing the reflected light.

[0025] Here, the travel guidance system 10 is connected to a vehicle control device 14, and acquires various information from the vehicle control device 14 while the vehicle 12 is traveling.

[0026] 2, the information sources to be acquired include vehicle speed information 20, steering angle information 22 (which may be curve curvature, curve strength, etc.), map data 24, GPS information (position information, etc.) 26, and camera image information 28. The travel guidance system 10 is configured to include at least a CPU, a ROM, and a RAM.

[0027] FIG. 2 is a schematic diagram showing the control functions for operating the travel guidance system 10 according to this embodiment. The blocks shown in FIG. 2 are classified by function and do not limit the hardware configuration. For example, a travel guidance control program may be preprogrammed into a microcomputer, and the system may operate based on this travel guidance control program. Also, a programming device such as an ASIC may be used for each function.

[0028] The travel guidance system 10 includes an operation information acquisition unit 30. The operation information acquisition unit 30 acquires vehicle speed information 20 and steering angle information 22 (which may be curve curvature, curve strength, etc.) from a vehicle control device 14 (see FIG. 1).

[0029] The travel guidance system 10 also includes a travel information acquisition unit 32. The travel information acquisition unit 32 acquires map data 24 (including curvature, distance, altitude, gradient, road surface gradient, unevenness, etc.), GPS information 26, and camera capture information 28.

[0030] Furthermore, the travel guidance system 10 includes a road information acquisition unit 34. A communication I / F 36 is connected to the road information acquisition unit 34. The communication I / F 36 is capable of communicating with a vehicle monitoring center 38 outside the vehicle 12, and the road information acquisition unit 34 acquires information relating to the travel area of ​​the vehicle 12 (particularly, road conditions in the travel direction) from the vehicle monitoring center 38.

[0031] The road conditions in the direction of travel of the vehicle 12 can be obtained from map data and GPS information, but it is also possible to obtain information on real-time road changes, such as width restrictions due to construction, road closures, and weather information.

[0032] The detailed functions of the information acquired by the operation information acquisition unit 30, the driving information acquisition unit 32, and the road information acquisition unit 34 include the following functions.

[0033] (Function 1) Vehicle speed information is a function that stores the driver's operation information (vehicle speed is measured by the wheel speed sensor) and the vehicle speed estimated from GPS.

[0034] (Function 2) The driving route information is a function to record and save road information (map information, GPS, camera information, roads created from sensors installed in the vehicle 12, and other arbitrary driving route information).

[0035] In function 2, if the communication speed is high, the calculation may be performed on an external server such as the vehicle monitoring center 38 from map information and the vehicle's own position.

[0036] In this embodiment, the road structure in the direction of travel is an important factor in determining road conditions. Examples of road structure include how long a straight section of the road continues and how far it is to the next corner.

[0037] Here, a "corner" refers to a section of a road where a vehicle changes course from a straight road to the next straight road (see FIGS. 3(A) and (B)).

[0038] In the narrow sense, a gradual change of course may be referred to as a "curve" as shown in Figure 3(A), and a nearly right-angled turn (right turn, left turn) may be referred to as a "corner" as shown in Figure 3(B). However, in this embodiment, "corner" includes both a "curve" and a "corner" in the narrow sense.

[0039] The operation information acquisition unit 30 is connected to the first calculation unit 40. The operation information acquisition unit 30 sends the acquired vehicle speed information and steering angle information to the first calculation unit 40.

[0040] A basic information storage unit 42 is connected to the first calculation unit 40. A preset time is stored in the basic information storage unit 42 as basic information. The preset time is a time t during which the driver can memorize information, and is set based on the verification results regarding the memory ability of a person (driver) shown in FIG. 4. Details of the basic information (the time t during which the driver can memorize information) will be described later.

[0041] The first calculation unit 40 calculates a distance L that can be traveled in a time t that the driver can remember while the vehicle 12 is traveling based on the basic information, and sends the calculated distance L to the information generation unit 44.

[0042] The travel information acquisition unit 32 is connected to the second calculation unit 46. The travel information acquisition unit 32 sends the acquired map data, GPS information, and camera shooting information to the second calculation unit 46.

[0043] Furthermore, the road information acquisition unit 34 is connected to the second calculation unit 46. The road information acquisition unit 34 transmits information relating to the driving area of ​​the vehicle 12, which is acquired via the communication I / F 36, to the second calculation unit 46.

[0044] The second calculation unit 46 is connected to the basic information storage unit 42 .

[0045] The second calculation unit 46 calculates the number of corners N that can be memorized by the driver in the time t that the driver can memorize while the vehicle 12 is traveling, taking into account the vehicle speed, based on the basic information, and sends the calculated number of corners N to the information generation unit 44.

[0046] (Basic information) The results of a verification experiment on human memory ability are shown in Figure 4. Hereinafter, the subject is a driver who drives the vehicle 12, so a human will be specified as the driver.

[0047] FIG. 4(A) is a characteristic diagram showing the results of an experiment to obtain the amount of driving information that a driver can remember.

[0048] The experimental method was to have the driver use a PC (personal computer) or other device to randomly read out 1 to 6 words while driving. The driver would then repeat the words they heard.

[0049] The results of the experiment showed that up to three words, the correct answer rate was high and the fluctuation in the correct answer rate was small, but from four words onwards, the correct answer rate suddenly dropped and the fluctuation in the correct answer rate also became larger.

[0050] As a result, it can be seen that the driver's memory suddenly becomes incapable of remembering when the number of words exceeds a threshold of three. For example, while the vehicle 12 is traveling, the driver may have sufficient memory capacity for the notifications of the first three corners, but may have difficulty remembering the notifications of the fourth and subsequent corners.

[0051] FIG. 4(B) is a characteristic diagram showing the results of an experiment to determine the time a driver can retain driving information in his memory.

[0052] The experimental method was to read out three words to the driver using a PC while he was driving. After that, the driver was asked to repeat the information he had memorized after a random waiting time of 0 to 30 seconds.

[0053] The experimental results showed that the correct answer rate was high and the fluctuation in the correct answer rate was small up to 4 seconds of memory retention time, but after 6 seconds, the correct answer rate decreased and the fluctuation in the correct answer rate also increased. As a result, 4 seconds was set as a threshold value for the driver, and once the threshold value is exceeded, there is a possibility that the driver's memory ability will become unclear. This threshold value (4 seconds in this embodiment) is set as the "predetermined time."

[0054] According to the verification results of the memory ability of a person (driver) in Figure 4, the time t that a driver can remember information is the time that a person can remember information, based on the experimental results of verifying the maximum number of words for which the accuracy rate when repeating randomly read out words is above a predetermined threshold, and the maximum time for which the accuracy rate when repeating these words is above a predetermined threshold when read out at regular intervals.In this embodiment, the maximum number of corners that can be remembered is 3, and the time that memory can be maintained is approximately 4 seconds.

[0055] As shown in Figure 2, basic information is input to the information generation unit 44 from the basic information storage unit 42, and based on this basic information, the calculation result (travel distance L) of the first calculation unit 40, and the calculation result (number of corners N) of the second calculation unit 46, information on the driving route (taking into account vehicle speed) to be traversed in a time t that the driver can remember is generated.

[0056] The road information is information that mainly includes position information of the entrance and exit of corners on a future road, starting from the current position while traveling, as shown in FIGS. 6 and 7, for example.

[0057] That is, the information generating unit 44 executes the following processing. (Process 1) Obtaining current location and vehicle speed (Process 2) Obtaining the travel distance L (Step 3) Obtain the number of corners N (Process 4) Information about corners that the driver can pass through within the time t that the driver can remember is presented all at once, at a timing x seconds (for example, 4 seconds) before the driver reaches the entrance to the first corner.

[0058] Through the above processes 1 to 4, the information generating unit 44 combines the vehicle speed and road information based on the second calculating unit 46 and the calculation results of the second calculating unit 46, creates driving route information of corners that the driver can pass through within the time t that the driver can remember, and records this information together with the driving data. By recording the driving data and the driving route information, it is possible to present the driving route information to the driver at an appropriate timing.

[0059] For example, information about corners that can be traversed is presented as is, as long as the driver can remember the information.

[0060] Furthermore, for example, if the amount of information about corners that can be traversed is greater than the amount of information that the driver can remember, information about two corners at a time is presented.

[0061] The information generating unit 44 is connected to the determining unit 48 and sends the generated roadway information to the determining unit 48 .

[0062] The determining unit 48 determines whether or not the road information generated by the information generating unit 44 needs to be repeated.

[0063] In other words, if the amount of information presented at one time is greater than the amount of information that the driver can remember, or if there is a corner that has not been passed after the time t that a person can remember after the information is presented, a decision is made to repeat the information presentation (generation of repeat information).

[0064] The judgment unit 48 is connected to the information output unit 50, and selects and notifies the output devices installed in the vehicle 12 based on the driving route information generated by the information generation unit 44 and the repeat information judged by the judgment unit 48.

[0065] The following are specific examples of applicable output devices. (1) Use your hearing. For example, information is presented by sound via a speaker, etc. For example, words, single sounds, complex sounds (alert sounds), stereophonic sounds, etc. (2) Use your vision. For example, information is presented using meter clusters, navigation systems (navigation), LEDs (illumination), HUDs (head-up displays), tablets, window glass, etc. For example, display of text, arrows, flashing lights, icons, diagrams, etc. (3) Use your skin senses. For example, vibration, temperature, stimuli (steering wheel, etc.) (4) Use wearable devices. For example, smart glasses, earphones, smart watches, etc. (5) Use a helmet. For example, shields, LEDs, earphones, microphones, etc. (6) Use an implantable chip. For example, signals can be sent to the brain or body to stimulate it directly, or bone conduction can be used. (7) Use the seat surface. For example, the seat surface can be changed using vibration, temperature, stimulation, pressure, etc.

[0066] Here, each output device has a function to repeat the information about a corner if the driver reaches the entrance of the corner after the time t that the driver can remember from the timing of presenting the information has elapsed. For example, the timing of the repetition is set to approximately half the distance of the previous information.

[0067] The usage modes, output devices, and notification modes that can be selected are shown in Table 1. The selection of the output device may be a single selection or multiple selections.

[0068] [Table 1]

[0069] The operation of this embodiment will be described below with reference to the flowchart of Fig. 5. Fig. 5 is a control flowchart for executing the cruise guidance system 10 according to this embodiment.

[0070] In step 100, map data (road shape) is acquired, then the process proceeds to step 102, where the current position and vehicle speed information of the vehicle 12 are acquired, information on the nearest corner and the next corner is acquired, and the process proceeds to step 104.

[0071] In step 104, as decision 1, it is determined whether the situation (shape of the road) allows for the information to be presented for each corner with ample time to spare. In other words, it is determined whether there is enough time to present information about each corner, from the entrance of the nearest corner to the entrance of the next corner.

[0072] If the answer at step 104 is positive, it is determined that there is no need to present information about multiple corners at once, and the process proceeds to step 106. At the nearest corner, the process of presenting information about multiple corners at once as in this embodiment is not performed, but rather a passing process is performed, and the process returns to step 102.

[0073] By passing through the nearest corner, the current "next corner" becomes the nearest corner.

[0074] If the determination in step 104 is negative, it is determined that it is necessary to present information about a plurality of corners at once, and the process proceeds to step 108.

[0075] In step 108, calculation is performed by the first calculation unit 40. That is, based on the time t (and vehicle speed) that the driver can remember, the travel distance L in the time t that the driver can remember is calculated.

[0076] In the next step 110, the calculation is performed by the second calculation unit 46. That is, based on the time t (and vehicle speed) that the driver can remember, the number N of corners that exists within the range of the time t that the driver can remember is calculated.

[0077] In the next step 112, as decision 2, it is determined whether the number N of corners that the driver can pass through in the time t that the driver can remember is equal to or greater than the amount of information that the driver can remember.

[0078] If the answer in step 112 is affirmative, it is determined that the amount of information exceeds the amount that the driver can remember, and the process proceeds to step 114, where driving route information that processes two corners as one set is output, and then the process proceeds to step 116, where the information on the corner that exceeds the amount of information that the driver can remember is output as repeat information based on the previous corner, and the process returns to step 102.

[0079] Also, if the result of decision 2 in step 112 is negative, it is determined that the amount of information is one that the driver can remember, and the process proceeds to step 118, where the information for N number of corners is set to be output all at once, and then in step 120, the driving road information is output at a position x seconds (for example, 4 seconds) before the first corner, and the process proceeds to step 122.

[0080] In step 122, as a third decision, it is determined whether or not there is an unpassed corner after a time t that the driver can remember, starting from the time when the information is presented.

[0081] If the determination in step 122 is negative, it is determined that there are no unpassed corners, and the process returns to step 102.

[0082] If the determination in step 122 is affirmative, it is determined that there is a corner that has not been passed, and the process proceeds to step 124, where repeat information on the corner that has not been passed is output, and the process returns to step 102.

[0083] (Driving simulation example 1) FIG. 6 shows a first example of a driving simulation (steady-state information presentation) performed under the processing based on the flowchart of FIG. 5 in the driving guidance system 10 of this embodiment.

[0084] If the current driving position is point A, the nearest corner is the first point (□ point 1) in a black square frame (hereinafter referred to as "□").

[0085] When searching for corner entrances within the travel direction range for time t that the driver can remember from this point □1, there are points □1, □2, and □3.

[0086] When the current driving position is x seconds (for example, 4 seconds) before the position entrance of the first corner (point B), information on the corners at points □1, □2, and □3 is presented.

[0087] Now, with point B as the reference point, it is clear that the corner at point □3 will deviate within the travel direction range for time t that the driver can remember.

[0088] Therefore, with point B as the base point, at the end (point C) of the range of the traveling direction for time t that the driver can remember, information about the corner at point □3 is repeatedly presented.

[0089] Thereafter, the vehicle 12 passes through the corners at point □1, point □2, and point □3, but at this time, since the driver has memorized the information for each corner, he or she can drive carefully around the corners at point □1, point □2, and point □3.

[0090] Next, on the road after passing the corner at Point 3, the nearest corner is Point 1 (Point 1) marked with white letters in a square frame (hereinafter referred to as "Point 1").

[0091] When a corner entrance is searched for within the travel direction range of the time t that the driver can remember from this first point, the first point and the second point are found.

[0092] When the current driving position is x seconds (for example, 4 seconds) before the position entrance of the first corner (point D), information on the corners of the first point and the second point is presented.

[0093] Thereafter, the vehicle 12 passes through the corners at ■ point 1 and ■ point 2, but at this time, the driver has memorized the information of each corner, so he can drive while paying sufficient attention to the corners at ■ point 1 and ■ point 2.

[0094] (Driving simulation example 2) FIG. 7 shows a second example of a driving simulation (special information presentation) performed under the processing based on the flowchart of FIG. 5 in the driving guidance system 10 of this embodiment.

[0095] If the current driving position is point A', the nearest corner is the first point (□ first point) in a black square frame (hereinafter referred to as "□").

[0096] When searching for corner entrances within the travel direction range for time t that the driver can remember from this point □1, there are points □1, □2, and □3.

[0097] When the current driving position is x seconds (for example, 4 seconds) before the position entrance of the first corner (point B'), information on the corners at points □1, □2, and □3 is presented.

[0098] Now, with point B as the reference point, it is clear that the corner at point □3 will deviate within the travel direction range for time t that the driver can remember.

[0099] Therefore, with point B' as the base point, at the end (point C') of the range of the traveling direction for the time t that the driver can remember, information about the corner at point □3 is repeatedly presented.

[0100] Thereafter, the vehicle 12 passes through the corners at point □1, point □2, and point □3, but at this time, since the driver has memorized the information for each corner, he or she can drive carefully around the corners at point □1, point □2, and point □3.

[0101] Next, on the road after passing the corner at Point 3, the nearest corner is Point 1 (Point 1) marked with white letters in a square frame (hereinafter referred to as "Point 1").

[0102] When a corner entrance is searched for within the travel direction range of the time t that the driver can remember from this first point, the first point and the second point are found.

[0103] If we look at the current driving position (point D') x seconds (for example, 4 seconds) before the position entrance of the first corner, point D' is located before the corner for which information is already being displayed (□ third point), which means that the display of corner information may be out of order.

[0104] Therefore, if point D', which presents information about ■point 1 and ■point 2, is located before the halfway point (point E) of the driving path at the previous corner (□point 3), information about ■point 1 and ■point 2 will be presented at this point E.

[0105] In addition, in the above driving simulation example 1 and driving simulation example 2, if the repetition time and the time to present information on the next new group of corners are close to each other, the presentation of information on the repeat and the presentation of information on the new group of corners may be performed simultaneously.

[0106] As described above, in this embodiment, the distance L that can be traveled and the number of corners N that exist within the distance L are calculated using the time t that the driver can remember at the current speed of the vehicle 12 as basic information, and information about those corners is presented all at once, before the driver has time to turn the first corner. This allows the amount of information that the driver can remember to be presented at the optimal timing, improving the sense of security and safety when driving on complex roads, such as roads with short intervals between corners, or roads in poor visibility environments.

[0107] In this embodiment, as shown in Figures 3(A) and (B), no distinction is made between curved roads (curves in the narrow sense) and twisted roads (corners in the narrow sense), and all direction-changing roads are considered corners. However, in mode setting, etc., "corners" may be classified into right turns, left turns (curves in the narrow sense) with a curvature radius R, and right turns, left turns (corners in the narrow sense), etc.

[0108] The type of classification may be set depending on the amount of memory and information based on the time t that the driver can memorize.

[0109] Furthermore, the number of corners N and the travel distance L, which are set based on the time t during which the driver can memorize information, may be corrected by learning so as to approximate the ability of each individual driver.

[0110] Furthermore, the number of corners N and the travel distance L may be corrected depending on the driving conditions (weather, number of passengers, region, road surface conditions, etc.).

[0111] [Note] (Appendix 1) A driving guidance system that provides guidance on road conditions along a driving route while a vehicle is traveling, This driving guidance system calculates the distance that can be traveled in a preset time at the current vehicle speed and the number of corners that will be passed on the road, and outputs driving route information that provides advance guidance on corner locations.

[0112] (Appendix 2) The predetermined time is 2. The navigation system according to claim 1, wherein the time period during which a person can remember information is set based on verification results regarding human memory ability.

[0113] (Appendix 3) an extraction unit that extracts corner points from map data of a road along which the vehicle is to travel; a calculation unit that calculates, based on the travel data of the vehicle and a predetermined time, information on a distance traveled during the time period and information on the number of corners on the travel path that can be passed during the time period; a generating unit that generates driving route information for driving guidance including a plurality of corner points from the distance information calculated by the calculating unit and the corner point number information; an output unit that outputs the driving road information generated by the generation unit to a driver before a first corner point among the plurality of corner points included in the driving road information; A driving guidance system having the above.

[0114] (Appendix 4) The predetermined time is 4. The navigation system of claim 3, wherein the time period during which a person can remember information is set based on verification results regarding human memory ability.

[0115] (Appendix 5) 5. A driving guidance system as described in Appendix 3 or Appendix 4, wherein if the amount of road information presented is greater than the amount of information that a person can remember within the preset time, a portion of the road information is repeatedly presented while driving.

[0116] (Appendix 6) the road information is presented a predetermined time before the first corner point, the time being set depending on the vehicle speed; 6. The driving guidance system according to claim 3, wherein if there is an unpassed corner point after the preset time has elapsed since the time when the driving route information was presented, the unpassed corner point is repeatedly presented.

[0117] (Appendix 7) 7. A travel guidance system according to any one of appendices 3 to 6, wherein the output unit includes one or more of the following notification modes: auditory notification, visual notification, skin sensation notification, wearable device notification, helmet notification, implanted chip notification, and vehicle seat notification.

[0118] (Appendix 8) On the computer, Operated as an extraction unit, a calculation unit, a generation unit, and an output unit of the travel guidance system according to any one of Supplementary Note 1 to Supplementary Note 7, Driving guidance program. [Explanation of symbols]

[0119] 10 Driving Guidance System 12 vehicles 14 Vehicle control device 16 GPS 18 Camera 18A Front camera 18B Rear camera 20 Vehicle speed information 22 Steering angle information 24 Map Data 26 GPS information 28 Camera shooting information 30 Operation information acquisition unit (extraction unit) 32 Driving information acquisition unit (extraction unit) 34 Road information acquisition unit (extraction unit) 36 Communication I / F 38 Vehicle Monitoring Center 40 First calculation unit (calculation unit) 42 Basic information storage section 44 Information generation unit (generation unit) 46 Second calculation unit (calculation unit) 48 Judgment Department 50 Information output unit (output unit)

Claims

1. A driving guidance system that provides guidance on road conditions along a driving route while a vehicle is traveling, This driving guidance system calculates the distance that can be traveled in a preset time at the current vehicle speed and the number of corners that will be passed on the road, and outputs driving route information that provides advance guidance on corner locations.

2. The predetermined time is 2. The navigation system according to claim 1, wherein the time period during which a person can memorize information is set based on verification results regarding a person's memory ability.

3. an extraction unit that extracts corner points from map data of a road along which the vehicle is to travel; a calculation unit that calculates, based on the travel data of the vehicle and a predetermined time, information on a distance traveled during the time period and information on the number of corners on the travel path that can be passed during the time period; a generating unit that generates driving route information for driving guidance including a plurality of corner points from the distance information calculated by the calculating unit and the corner point number information; an output unit that outputs the driving road information generated by the generation unit to a driver before a first corner point among the plurality of corner points included in the driving road information; A driving guidance system having the above.

4. The predetermined time is 4. The navigation system according to claim 3, wherein the time period during which a person can memorize information is set based on verification results regarding a person's memory ability.

5. 4. The driving guidance system according to claim 3, wherein if the amount of road information presented during the preset time period is greater than the amount of information that a person can remember, a portion of the road information is repeatedly presented during driving.

6. the road information is presented a predetermined time before the first corner point, the time being set depending on the vehicle speed; 4. The driving guidance system according to claim 3, wherein if there is an unpassed corner point after the preset time has elapsed since the time when the driving route information was presented, the unpassed corner point is repeatedly presented.

7. 4. The driving guidance system of claim 3, wherein the output unit includes one or more of the following notification forms: an auditory notification form, a visual notification form, a cutaneous notification form, a wearable device notification form, a helmet notification form, an implanted chip notification form, and a vehicle seat notification form.

8. On the computer, The device is operated as an extraction unit, a calculation unit, a generation unit, and an output unit of the travel guidance system according to any one of claims 3 to 7. Driving guidance program.

Images