JP2021189318A - Driving simulator program, driving simulator method, and driving simulator - Google Patents

Abstract

To carry out a driving skill function test as well as a cognition function test under a cognition theme.SOLUTION: A driving simulator displays an image of a cognition function test within a movie of a driving situation a driver is watching, makes prior notification to the driver that a test regarding an image would be carried out after the driving simulation, executes a driving simulation including the image for the cognition function test within the movie while generating the movie by updating the driving situation based on the driving operation of the driver, executes the cognition function test after the driving simulation, and outputs an evaluation result for the cognition function test and the evaluation result of the driving skill. The image of the cognition function test is an object appearing in the movie, and the cognition function test is the test for evaluating memory of the driver regarding attributes of an object.SELECTED DRAWING: Figure 6

Description

The present invention relates to a driving simulator program, a driving simulator method and a driving simulator.

The driving simulator generates a video of the driving situation to be watched by the driver, and updates the driving situation based on the operation of the driving operation means such as the steering wheel, the accelerator, and the brake by the driver who watches the video. The driving simulator does not allow the driver to drive the actual vehicle, but causes the driver to simulate the driving operation means under the simulated driving situation. The driving simulator generates driving situations that require basic driving operations such as turning right and left at intersections, and driving situations that are prone to accidents, and updates based on the driving operations performed by the driver in each driving situation. Based on the driving situation, it is evaluated whether the driving skill is appropriate and contributes to the improvement of the driving skill. The driving simulator is described in the following patent documents.

On the other hand, in recent years, dementia in which cognitive function declines appears as a symptom from the elderly to young people, and the decline in cognitive function may lead to a decline in driving skills. In particular, as the number of accidents among the elderly increases, elderly drivers are obliged to take a cognitive function test when renewing their driver's license.

Japanese Unexamined Patent Publication No. 2008-148952 Japanese Unexamined Patent Publication No. 2009-237104 Japanese Unexamined Patent Publication No. 2015-45826 Japanese Unexamined Patent Publication No. 2018-4506

However, medically, there is no correlation between cognitive decline and motor function decline, and there are cases where cognitive decline does not impair driving skills, and conversely, cognitive function There are some cases where driving skills have declined even though they have not declined. And since deterioration of driving skill leads to deterioration of quality of life, it is required to prevent deterioration of driving skill.

Therefore, an object of the first aspect of the present embodiment is to provide a driving simulator program, a driving simulator method, and a driving simulator that perform a driving skill test and a cognitive function test under a cognitive task.

The first aspect of the present embodiment is a driving simulator program that causes a computer to execute the processing of the driving simulator.
The processing of the driving simulator is
An image of the cognitive function test is displayed in the video of the driving situation that the driver watches, and the driver is notified in advance that the test will be performed on the image after the driving simulation.
While updating the driving situation based on the driver's driving operation and generating the moving image, a driving simulation in which the image of the cognitive function test is included in the moving image is executed.
After the driving simulation, the cognitive function test was performed.
It has the ability to output the evaluation result of the cognitive function test and the evaluation result of driving skill.
The image of the cognitive function test is an object that appears in the moving image.
The cognitive function test is a driving simulator program that evaluates the memory ability of the driver with respect to the attributes of the object.

According to the first aspect, it is possible to perform a driving skill test under a cognitive task and a cognitive function test at the same time.

It is a figure which shows the configuration example of the operation simulator in this embodiment. It is a flowchart which shows the outline of the process of a driving simulator program. It is a flowchart which shows the process of the driving training program with a cognitive task. It is a flowchart which shows the process of a driving aptitude inspection program. It is a figure which shows the start screen example of the driving training with a cognitive task. It is a figure which shows the screen example of the explanation of a cognitive task. It is a figure which shows the screen example of the driving training start. It is a figure which shows one screen example of the moving image of the driving situation during driving training. It is a figure which shows the screen example of the moving image of the scene where an accident is likely to occur. It is a figure which shows an example of the screen which performs the examination of the memory ability which is a cognitive task. It is a figure which shows the output example 1 of the cognitive function and the driving training evaluation in the driving training with a cognitive task. It is a figure which shows an example of the start screen of a driving aptitude test. It is a figure which shows an example of the screen of the driving aptitude inspection (1). It is a figure which shows an example of the screen of the inspection result of the driving aptitude inspection (1). It is a figure which shows an example of the screen of the driving aptitude inspection (2). It is a figure which shows an example of the screen of the inspection result of the driving aptitude inspection (2). It is a figure which shows the output example 1 of the evaluation result in the driving suitability inspection. It is a figure which shows an example of the driving skill improvement cycle which incorporated the driving training with a cognitive task by a driving simulator into a PDCA cycle. It is a figure which shows the output example 2 of the cognitive function and the driving training evaluation in the driving training with a cognitive task. It is a figure which shows the output example 2 of the evaluation result in the driving suitability inspection.

FIG. 1 is a diagram showing a configuration example of a driving simulator according to the present embodiment. The operation simulator 1 is an information processing device having a processor 10 which is a central processing unit, a main memory 12 accessed by the processor, an interface 14 with an external network NW, an internal bus 16, and a large-capacity storage 20. be. The storage 20 stores the main program 22 of the driving simulator, subprograms such as the driving training program 24 with a cognitive task and the driving aptitude test program 26, and the history data 28 of the evaluation result of the driver who has driven the driving simulator. .. The processor expands and executes the main program 22 of the driving simulator, the driving training program 24 with a cognitive task, and the driving aptitude test program 26 in the main memory 12.

The driving simulator 1 is accessed from the driving simulator terminals 30 and 32 via the network NW. The driving simulator 1 sequentially executes the driving simulator main program 22, the driving training program 24 with a cognitive task, and the driving aptitude test program 26 in response to the driving training request from the driving simulator terminal. A simulated driver's seat, a simulated steering wheel, a simulated brake, and a simulated accelerator are arranged in the driving simulator terminal. In response to the driver sitting in the simulated driver's seat operating the simulated steering wheel, simulated brake, and simulated accelerator, the driving simulator terminals 30 and 32 transmit the operation content to the driving simulator 1, and the processor is based on the operation content. The driving status is updated, a video to be viewed from the driver's seat corresponding to the driving status is generated, and displayed on the driving simulator terminal.

The processor that executes the driving simulator main program 22, the driving training program 24 with a cognitive task, and the driving aptitude test program 26 updates the driving status based on the driver's driving operation, as in the case of executing a normal game program. .. The processor creates a driving situation by arranging polygons such as roads, traffic lights, buildings such as buildings, cars traveling on roads, people walking on sideways, and objects used for cognitive tasks in a virtual driving space, for example. Then, the car to be driven based on the driver's driving operation is moved in the virtual motion space, and the position and direction of other polygons are changed in response to the movement of the car to update the driving situation. .. Then, the processor generates a moving image to be viewed by the driver based on the driver's viewpoint and the direction of the line of sight in the ever-changing driving situation.

Although the driving simulator 1 receives driving training at a plurality of driving simulator terminals, the driving simulator 1 may be operated as a driving simulator by a standard loan.

[Driving simulator]
FIG. 2 is a flowchart showing an outline of the processing of the driving simulator program. The processor 10 of the driving simulator executes the main program 22 of the driving simulator and its subprograms to execute the following processing. In the following description, it is described that the processor executes the processing by omitting the execution of the main program 22 of the operation simulator and its subprograms.

The processor executes the registration process of the user who is the driver (S10). In user registration, the date of birth, gender, age at the time of license acquisition, etc. of the user are registered.

Next, the processor executes the processing of the driving training with the cognitive task (S11), and evaluates the cognitive function and the driving skill in the driving training (S12). These processes S11 and S12 are performed by the processor executing the driving training program 24 with a cognitive task. Details will be described later. Next, the processor performs a driving aptitude test (S13) and performs a driving aptitude evaluation (S14). These processes S13 and S14 are performed by the processor executing the driving aptitude test program 26. The details will be described later.

Then, the processor outputs the results of the evaluation of cognitive function and driving skill and the evaluation of driving aptitude (S15). In addition, the processor provides output that recommends the driver cognitive function training corresponding to the poorly rated driving skills (S16). Cognitive function training is training developed by the Japan Society for Dementia and the like to improve or improve various cognitive functions, and it has been confirmed that the corresponding cognitive function is improved or improved by receiving cognitive function training. ..

[Driving training program with cognitive tasks]
FIG. 3 is a flowchart showing the processing of a driving training program with a cognitive task. The processor generates and outputs a video explaining the cognitive task before starting the driving training (S20).

FIG. 5 is a diagram showing an example of a start screen of driving training with a cognitive task. FIG. 6 is a diagram showing a screen example for explaining a cognitive task. On the start screen of FIG. 5, "Check your driving skill" and "Diagnose your driving skill in four situations from now on" are displayed. The "four scenes" are scenes that are prone to accidents. Simulation data of a predetermined number of scenes has been created in advance, and the processor reproduces the operating conditions of the four scenes based on the simulation data of, for example, four scenes randomly selected from the predetermined number of scenes.

On the screen for explaining the cognitive task in Fig. 6, along with three types of screen examples SMPL_1 to SMPL_3, "A colorful pig appears somewhere in the city while driving. The color of the pig encountered while driving after driving. There is a quiz to select. "

Three screen examples SMPL_1 to SMPL_3 are screen examples in which an image of a cognitive function test is included in a video of a driving situation that the driver watches during driving training. The three screen examples are screens of a moving image of a driving situation that can be seen from the driver's point of view. An image in which the object "pig" is placed is displayed as an image example of the cognitive function test along the driving route in the video of the driving situation. That is, the image of the cognitive function test is an image of an object that appears along the driving path in the moving image of the driving situation. As objects, the screen SMPL_1 shows a pig walking on the sidewalk, the screen SMPL_2 shows a pig climbing the roof of a building, and the screen SMPL_3 shows a pig hanging on a traffic light.

The object may be any animal, virtual animal, virtual character, or any other animal, creature, object, or the like. The objects are colored differently, for example, and in the post-driving quiz, the memory of the pig's color encountered during driving is checked. However, the memory quiz is not limited to the memory of the color of the object, and may be any attribute of the object, for example, the shape, pattern, color of the object, or a combination thereof. For example, if the object is a "lion," a quiz may be used to ask the memory of the male or female shape of the lion. If the object is an "animal", a quiz may be used to ask the memory of any of "pig", "horse", and "cow".

Returning to FIG. 3, the processor generates a driving training start screen and starts driving training (S21). Then, the processor updates the driving status based on the driving operation, and generates a video of the updated driving status (S22). The video of the driving situation includes an image of the cognitive task. In addition, the video of the driving situation includes a video of a scene in which an accident is likely to occur. At the end of the driving training for one scene, the processor produces a video of the cognitive task test (S23). The processor repeats the update of the driving situation and the generation S22 of the video and the generation S23 of the video of the cognitive task test until, for example, the driving training of all four scenes is completed (S24). The main screens in the driving training video are explained below.

FIG. 7 is a diagram showing a screen example of starting driving training. The driving training start screen has the message "Let's train driving skills and memory" and "Let's find and memorize colorful pigs. Let's start." Following the screen for starting driving training, the processor plays a navigation voice so that the driving vehicle heads for the scene of the accident in the video of the driving situation, and causes the driver to follow the navigation voice. The processor updates the driving situation based on the driving operation, advances the virtual car being driven along the route in the virtual space called driving training, and directs it to the scene of the accident. Then, the processor generates video and audio to be viewed from the driver's seat in an ever-changing driving situation.

FIG. 8 is a diagram showing one screen example of a moving image of a driving situation during driving training. In this example, the "pig" object OBJ is displayed on the left side of the road in the driving route in the video of the driving situation seen by the driver. For example, this pig has a certain color (not shown). As announced on the explanation screen of the cognitive task in FIG. 6, the driver performs a driving operation while searching for an object OBJ that appears in the ever-changing driving situation. That is, during driving training, the driver is required to search for objects of cognitive tasks and memorize their characteristics, and is placed in a distracted state. Therefore, the driver is in a situation where he cannot concentrate on driving training because he is conscious of searching for the object "pig".

FIG. 9 is a diagram showing a screen example of a moving image of a scene in which an accident is likely to occur. The scene on the screen of FIG. 9 is a scene in which a pedestrian appears from the blind spot of a large vehicle when the traffic light turns blue at an intersection and an attempt is made to start with another vehicle on the right side. In this scene, if you suddenly start at a green light without predicting a pedestrian from the blind spot, it will lead to an accident where you come into contact with a pedestrian who suddenly appears. If the driving operation is improper and the vehicle comes into contact with a pedestrian, the processor will stop the video and display the words "accident occurred". When drivers are distracted by looking for objects that appear along the driving path, which is a cognitive task, they tend to be unable to correctly predict pedestrians from blind spots. If no accident occurs, when the driving training including one scene is completed, the processor finishes updating the driving status of the driving training and generating a video of the driving status.

FIG. 10 is a diagram showing an example of a screen for performing a memory test, which is a cognitive task. The processor generates and displays a video of the cognitive task test when the driving training for one scene is completed. FIG. 10 shows an example of an inspection screen for selecting the color of the "pig" that appeared in the moving image during driving training. On the screen, "What color is the pig?" "What color was the pig you encountered in the place of the photo while driving? Please select the photo you think is correct." "Select the photo on the left and right of the cross pad, and select the photo. The message "OK to confirm with the button" is displayed. In addition, the screen displays photographs of a plurality of still images in which pigs of different colors appear.

The driver selects one of the two photographs on the left and right of the cross pad of the input pad, and presses the ○ button to confirm. The processor determines whether or not the photograph selected by the driver is correct based on the selection operation by the driver.

According to a study by the Road Safety Department of the American Automobile Association, 25-50% of all car accidents are reported to be caused by distracted driving. In other words, being in a distracted situation (distruction) makes it easier for a driver to have a car accident.

Based on the results of this study, the driving simulator of this embodiment provides the driver with driving training with a cognitive task. In other words, the driving simulator not only evaluates the driving skill of the driver, but also searches for the object that appears in the video of the driving simulator while driving, and takes a quiz to ask the memory of the attribute of the object after driving. Imposing on your hand. By imposing a cognitive task, the driver can be placed in a situation where accidents are likely to occur in a situation where accidents occur frequently, and the level of driving skill in the situation where the driver frequently causes accidents can be evaluated with high accuracy.

By imposing a cognitive task, it is possible to bring distracting factors that exist in the real world into the unreal game world of a driving simulator and create a driving situation equivalent to that in the real world. This effect appears not only in the elderly but also in all age groups including the young.

In addition to the above points, the driving simulator of the present embodiment can perform a quiz asking the memory ability related to the cognitive task after the driving training, and can also test the cognitive function corresponding to the cognitive task. Then, as shown below, the driving simulator includes the level of cognitive function in addition to the level of driving skill in the evaluation result. By showing the driver such an evaluation result, the driver is given an incentive to work not only on the improvement of the cognitive function corresponding to the cognitive task but also on the improvement of the cognitive function corresponding to the driving skill.

FIG. 11 is a diagram showing output example 1 of cognitive function and driving training evaluation in driving training with a cognitive task. As shown in FIG. 2, the processor determines whether or not the photograph selected by the driver in the cognitive task test is correct, and evaluates the cognitive function (S12). In addition, the processor determines whether or not an accident has occurred based on the driving operation in a situation where an accident is likely to occur in the driving training with a cognitive task, and evaluates the driving skill in the driving training (S12). Then, the processor outputs an evaluation result that describes the evaluation result of the cognitive function and the evaluation result of the driving skill (S15).

The output example of the cognitive function and the driving training evaluation in FIG. 11 includes registration information, comprehensive evaluation, and dangerous scene explanations 1 to 4. The registration information shows the user ID, gender, year of birth, and age of driver's license. Comprehensive evaluation shows radar charts of memory, attention retention, visuospatial function, reasoning function, judgment / responsiveness, and dexterity.

Comprehensive evaluation includes the level of memory, which is the cognitive function evaluated by the test for cognitive tasks, and the driving skills required in various driving situations during driving training, such as continuous attention, visuospatial function, and reasoning function. The radar chart shows the level of judgment, responsiveness, and dexterity.

The level of memory is calculated based on whether or not the quiz in the cognitive task test shown in FIG. 10 was answered correctly. Since a memory quiz is given in the driving training of each of the four scenes, the memory level is calculated based on, for example, the correct answer rate. On the other hand, the level of driving skill is calculated by a predetermined calculation method based on the driving operation of the driver during the driving training.

The comprehensive evaluation shown in FIG. 11 outputs the five types of driving skills in association with psychological terms and explanations of the driving skills. As shown below, the left side is a psychological term and the right side is an explanation of driving skills. Memory, which is a cognitive function, is also a psychological term.
Psychological terms: Explanation of driving skills Sustaining attention: Distance visual space function that traveled without causing an accident: Appropriate inter-vehicle distance inference function with the preceding person according to speed: Driving judgment and responsiveness that predicted danger in advance : Driving skill according to road conditions such as traffic lights and pauses: Smoothness of steering wheel / access / brake operation

In other words, the explanation of driving skill is a description that specifically explains driving skill, while the psychological term is a technical term of psychology officially defined by the Japan Society for Dementia and the like. On the other hand, the Japan Society for Dementia and others have prepared training to improve cognitive function in response to psychological terms. And there is a lot of evidence that cognitive function is improved when a patient with cognitive decline receives cognitive function training. Therefore, by showing the levels of multiple driving skills in the column of comprehensive evaluation and also describing the psychological terms related to or corresponding to each driving skill, the driver can improve the driving skill with a low evaluation. You will be encouraged to perform cognitive function training in psychological terms that correspond to your driving skills. If the psychological term corresponding to each driving skill for which the evaluation result is shown is also described in the comprehensive evaluation column, the driver is given an incentive to perform cognitive function training and the possibility of improving the corresponding cognitive function is increased. ..

By describing the URL address of the website of the institution where the cognitive function training can be taken corresponding to the psychological term in the evaluation output of FIG. 11, the cognitive function training can be recommended to the driver, and the driver can cognitive function. It makes it easier to carry out training.

In the evaluation output of FIG. 11, dangerous scene explanations 1 to 4 are described. Danger scene commentary 1 is the title of the dangerous scene "Unexpected movement of the preceding vehicle" and the dangerous scene "When the preceding vehicle in the right lane suddenly changes course to the front when driving in the left lane". Includes a brief description of. In addition, "If you do not know the traffic situation in the right lane as well as your own lane, there is a risk of contact. If you find a vehicle waiting for a right turn ahead, pay attention to the traffic situation in the right lane. If you do not have a broad understanding of traffic conditions, you will not be able to respond to sudden changes in the course of other vehicles. " Further, in the danger scene commentary 1, a thumbnail image of the scene of the accident, a display of the driving training result of "accident occurrence", and a five-step driving evaluation are shown. The remaining dangerous scene explanations 2 to 4 include the same description.

Each danger scene commentary 1 to 4 may further include the memory test result of the attribute of the object appearing in the moving image of the driving situation. For example, the "pig" icon may be displayed in white for correct answers and black for incorrect answers by arranging them on five stars in a five-level driving evaluation.

FIG. 19 is a diagram showing output example 2 of cognitive function and driving training evaluation in driving training with a cognitive task. FIG. 11 shows the evaluation output of the first driving skill diagnosis, while FIG. 19 shows the evaluation output of the second driving skill diagnosis. In the radar chart shown in the comprehensive evaluation, the first comprehensive evaluation is shown by a broken line, and the second comprehensive evaluation is shown by a solid line. According to this, the overall evaluation of the second time is 80 points, which is higher than the 54 points of the first time. In this way, by showing the evaluation history of the driving skill diagnosis, the driver can know the transition of the evaluation. As the history of the comprehensive evaluation, a plurality of times after the first time may be displayed, or only the history immediately before may be displayed.

In the second driving skill diagnosis, the combination of the four dangerous situations is different from the first in FIG. The second combination of dangerous scenes is "unexpected movement of the predecessor", "children jumping out in a residential area", "evaporation phenomenon", and "sudden stop of the predecessor due to signal change".

[Driving aptitude test program]
FIG. 4 is a flowchart showing the processing of the driving aptitude test program. The processor executes a driving aptitude inspection program, generates a moving image of the driving aptitude test (1) (S30), and after the driving aptitude test (1) is completed, aggregates and displays the inspection results (S31). Further, the processor generates a moving image of the driving aptitude test (2) (S32), and after the driving aptitude test (2) is completed, aggregates and displays the inspection results (S33).

In the driving aptitude test (1) and (2), the processor randomly displays a driving operation instruction image instructing a predetermined driving operation in the moving image a plurality of times while generating the moving image of the driving situation. When the driver detects that the driving operation instruction image is displayed, the driver performs a driving operation on the driving operation instruction screen. The processor measures and evaluates the accuracy of this driving operation, the reaction speed, and the like.

FIG. 12 is a diagram showing an example of the start screen of the driving aptitude test. On this start screen, "Let's train your reaction power" "From now on, we will diagnose your driving brain age by measuring your reaction speed, accuracy, and concentration." "Driving brain age is for driving. The required responsiveness is quantified as age. You can make an objective evaluation by comparing it with your actual age. ”Is displayed.

FIG. 13 is a diagram showing an example of the screen of the driving aptitude test (1). In the driving aptitude test (1), the driver continues to step on the access without operating the steering wheel and travels on a straight road. While driving, one of the blue circle, yellow inverted triangle, and red diamond-shaped images, which are the driving operation instruction images, is randomly displayed on the front of the moving image. The driver is required to perform the following driving operations in response to detecting the display of those images.
(1) If the image is a blue circle, "keep stepping on the accelerator"
(2) If the image is a yellow inverted triangle, "quickly release the accelerator and immediately step on again."
(3) If the image is a red diamond, "quickly release the accelerator and immediately step on the brake."

In the example of FIG. 13, a yellow inverted triangle figure is displayed. In the case of this driving operation instruction image, the driver performs a driving operation in which the accelerator is quickly released and immediately re-depressed. The processor measures the accuracy of this driving operation, response time, and reaction unevenness. In the yellow inverted triangle figure, the time after the figure is displayed starts from 0:00 and the time until the driving operation is measured and displayed. By displaying the time in the graphic in this way, the driver can intuitively grasp the time required from the graphic display to the driving operation. Since it is not necessary to operate the steering wheel, the driver can concentrate on performing the corresponding driving operation in response to the display of the driving operation instruction image.

In the example of FIG. 13, the driving operation instruction image is displayed 15 times in one driving aptitude test (1). For the driver, concentrating on detecting the display of the driving operation instruction image and performing the corresponding driving operation in response to the display is simple and tedious. Therefore, as shown in FIG. 13, 15 operation operation instruction images are sequentially displayed at the upper end of the screen, and a small black circle is further displayed at the display position of the remaining operation operation instruction images. As a result, the driver can know how many times the driving operation instruction image has been displayed up to now and how many times it will be displayed in the future, and can dispel boredom. Further, by displaying a cross mark on the driving operation image when an erroneous driving operation is performed, the driver is notified of the correctness of the driving operation with respect to the displayed driving operation image.

FIG. 14 is a diagram showing an example of a screen of the inspection result of the driving aptitude inspection (1). On this screen, under the title "Result Announcement", 15 driving operation instruction images are displayed side by side in the display order on the right side of the "Mark" label. Then, a cross mark is displayed on the driving operation instruction image in which the wrong driving operation is performed. Further, on the right side of each of the "accelerator" and "brake" labels, under each driving operation instruction image, the access and brake operation history is shown by the thickness of a plurality of vertical lines arranged in the direction of the bill.

In addition, the evaluation result table is displayed on this screen, and in the evaluation result table, "your result" corresponds to "accuracy", "reaction time", and "reaction unevenness" in the "analysis item" column. Five grades and measured values are displayed in the column, and the average value is displayed in the "Average of the same generation" column. Regarding the measured values, the accuracy is the correct answer rate = the number of correct answers /% of the number of driving operation instruction images, the reaction time is the time required for the driving operation to be performed after the image is displayed, and the reaction unevenness is the reaction time. Variation time. The thumbnail image of FIG. 13 is displayed on the right side of the evaluation result table.

FIG. 15 is a diagram showing an example of the screen of the driving aptitude test (2). In the driving aptitude test (2), the driver keeps stepping on the accelerator, operates the steering wheel in response to the meandering road, and drives the vehicle. While driving, one of a blue circle, a yellow inverted triangle, and a red diamond-shaped image, which is a driving operation instruction image, is randomly displayed around or at any position of the moving image. The driver is required to perform the same driving operation as the driving aptitude test (1) in response to detecting the display of those images.

In the screen example of FIG. 15, a red diamond-shaped image is displayed in the lower left corner of the screen. In the driving aptitude test (2), the driver needs to concentrate on detecting the display of the driving operation instruction image and executing the corresponding driving operation while operating the steering wheel in response to the change of the road ahead. Therefore, unlike the driving aptitude test (1), the reaction force of the driving operation under the load of operating the steering wheel is inspected. The time from the display to the driving operation is measured and displayed in the red diamond, and the driver can intuitively grasp the time required from the graphic display to the driving operation.

Further, as in the driving aptitude test (1), the driving operation instruction image is displayed 15 times in one driving aptitude test (2). As shown in FIG. 15, 15 times of driving operation instruction images are displayed in order at the upper end of the screen, and small black circles are displayed at the display positions of the remaining driving operation instruction images. Further, by displaying a cross mark on the driving operation image when an erroneous driving operation is performed, the driver is notified of the correctness of the driving operation for each driving operation image.

FIG. 16 is a diagram showing an example of a screen of the inspection result of the driving aptitude inspection (2). Similar to the inspection result screen of the driving aptitude test (1), on the screen of FIG. 16, 15 driving operation instruction images are displayed in the order of display under the title "result announcement" and to the right of the "mark" label. It is displayed side by side, and a cross mark is displayed on the driving operation instruction image in which the wrong driving operation is performed.

Further, on the right side of each of the "accelerator" and "brake" labels, the access and brake operation history is shown by the thickness of a plurality of horizontally arranged vertical lines under the respective driving operation instruction images. Then, on the right side of each of the "steering wheel" and "stagger" labels, the history of left and right movements of the steering wheel operation and the history of left and right fluttering of the car are shown as waveforms.

In addition, in the evaluation result table, as in the inspection result (Fig. 14) of the driving aptitude test (1), "your result" corresponds to "accuracy" and "reaction time" in the "analysis item" column. Five-level evaluation and measured values are displayed in the column of, and the average value is displayed in the column of "Average of the same generation". Further, unlike the driving suitability inspection (1), "steering wheel operation" is added to the "analysis item" column. The measured value of the steering wheel operation is the length of the vehicle deviating from the driving path. Further, a thumbnail image of the screen of FIG. 15 is displayed on the right side of the evaluation result table.

FIG. 17 is a diagram showing output example 1 of the evaluation result in the driving suitability inspection. As shown in FIG. 2, the processor evaluates the driving aptitude test (S14) and outputs the evaluation result (S15). In addition to the evaluation result tables shown in FIGS. 14 and 16, the evaluation contents include the driver's brain age and generational ranking.

The output example of the driving aptitude evaluation in FIG. 17 shows registration information, driving brain age, generational ranking, evaluation result table of test 1 and test 2, and general evaluation. The registration information is the same as in FIG.

For the driving brain age, a driving brain age distribution graph, a driver's driving brain age (44 years old), and a five-level evaluation are displayed. The driving brain age is a number indicating how many years the test results of the driving aptitude tests (1) and (2) correspond to the average value or the median value. In the column of "driving brain age" in FIG. 17, it is shown that "driving brain age distribution graph", that the driving age is "44 years old", and that it is the fourth of the five-point evaluation by the figure of five stars. Is done. In the "driving brain age distribution graph", the position of the driving brain age "44 years old" is indicated by a black circle (arrow) between the position of the driver's age "50 years old" and the position of "22 years old". In the driving brain age distribution graph, the history of past examinations is displayed for each number of examinations. The driver can compare the driving brain age in this examination with the driving brain age in the past examination. However, in the example of FIG. 17, it is shown that the number of examinations is "first time".

In the column of "ranking by generation" in FIG. 17, a driver's brain age distribution graph of the same generation as the driver is shown. This graph is a histogram of the driver's brain age of a predetermined number of people (for example, 2000) of the same generation as the driver, and the driver's driver's brain age bin is highlighted and displayed. In addition, the ranking is shown from the youngest driver of the same generation. This rank is a rank out of 100 people and is shown as a normalized rank.

The evaluation result tables of "Test 1" and "Test 2" of FIG. 17 are the same as the evaluation result tables of the driving aptitude tests (1) and (2) of FIGS. 14 and 16. "Selective reaction test" is displayed on the right side of the label of "Test 1", and "Attention distribution / multiple work test" is displayed on the right side of the label of "Test 2". "Selective reaction inspection" and "attention distribution / multiple work inspection" are inspection terms for driving functions stipulated by laws and regulations.

Then, the general evaluation (comment) based on the results of the driving aptitude tests (1) and (2) is shown in the general evaluation. In the example shown in Figure 17, the general comment was "There was a slight error in the reaction to the mark." "It took some time to decide and execute the action." "I was able to drive in a fairly accurate position with respect to the course." It is. "

FIG. 20 is a diagram showing output example 2 of the evaluation result in the driving suitability inspection. FIG. 17 is an output example 1 of the evaluation result in the first driving aptitude test, and FIG. 20 is an output example 2 of the second time. In the column of the driving brain age in FIG. 20, the first driving brain age and the second driving brain age are shown in the driving brain age distribution graph. The second brain age is 42 years old, which is younger than the first 44 years old. The driving brain age distribution graph may show changes in the driving brain age multiple times after the initial examination. Also, in the column of ranking by generation in FIG. 20, the ranking in the same generation is 39th, which is higher than the first 48th, and the corresponding age is rejuvenated in the driving brain age distribution graph of the same generation in the same column. ..

In FIG. 20, the measurement results of the operation time in the selection reaction test of the test 1 and the attention distribution / multiple work test of the test 2 are the same as or improved from the first time except for the steering wheel operation.

[Motor skill improvement cycle]
By incorporating the driving training by the driving simulator of this embodiment at the beginning of the PDCA cycle for dementia prevention, both dementia prevention and improvement of driving skills can be expected. The PDCA cycle for dementia prevention includes dementia awareness (Plan), cognitive training, exercise, dietary improvement (Do), medical examination (Check), medical care at medical institutions, and use of nursing care facilities (Action). Consists of.

FIG. 18 is a diagram showing an example of a driving skill improvement cycle in which driving training with a cognitive task by a driving simulator is incorporated into a PDCA cycle. According to this driving skill improvement cycle, the user first experiences driving training with a cognitive task in the driving simulator according to the present embodiment (S41). Users who are shown the results of driving training with cognitive tasks have better incentives to improve their driving skills if they have reduced driving skills. In this state, the user takes a dementia awareness class (Plan) (S42). The user then performs cognitive improvement training associated with reduced driving skills (Do) (S43). The user also undergoes a medical examination of cognitive function (Check) (S44). Furthermore, the user takes an action corresponding to the medical test result (Action) (S45).

Users who have experienced driving training with cognitive tasks in a driving simulator will work on cognitive training with a high awareness, aiming to improve their reduced driving skills. As a result, improvement of cognitive function and improvement of driving skill can be expected.

As described above, the driving simulator in the present embodiment provides driving training with a cognitive task, can carry out driving training in a state of being distracted by the cognitive task, and has high accuracy in driving skills in situations where accidents occur frequently. Can be determined. At the same time, the cognitive function of the driver can be tested by the cognitive task.

1: Driving simulator 10: Processor 22: Driving simulator main program 24: Driving training program with cognitive task 26: Driving aptitude test program
OBJ: Object
CRS: Cursor

Claims (8)

A driving simulator program that causes a computer to execute the processing of the driving simulator.
The processing of the driving simulator is
An image of the cognitive function test is displayed in the video of the driving situation that the driver watches, and the driver is notified in advance that the test will be performed on the image after the driving simulation.
While updating the driving situation based on the driver's driving operation and generating the moving image, a driving simulation in which the image of the cognitive function test is included in the moving image is executed.
After the driving simulation, the cognitive function test was performed.
It has the ability to output the evaluation result of the cognitive function test and the evaluation result of driving skill.
The image of the cognitive function test is an object that appears in the moving image.
The cognitive function test is a driving simulator program that evaluates the memory ability of the driver with respect to the attributes of the object. The object is either an animal, a virtual animal, or a virtual character.
The driving simulator program according to claim 1, wherein the attribute of the object is any of the shape, pattern, color, and combination thereof of the object. The evaluation result includes the level of the memory ability evaluated by the cognitive function test and the level of a plurality of driving skills required in the driving situation, and further includes psychological terms corresponding to the plurality of driving skills. The driving simulator program according to claim 1, which is shown to the driver in association with the driving skill. The processing of the driving simulator further
The third aspect of claim 3, wherein when outputting the evaluation result of the driving skill, the driver is recommended to perform the cognitive function improving training of the psychological term corresponding to the driving skill deteriorated in the evaluation result. Driving simulator program. The processing of the driving simulator further
While generating a video of the driving situation, the driving operation instruction image for instructing a predetermined driving operation is included in the video multiple times.
The reaction time of the driving operation to the driving operation instruction image performed by the driver in response to the driving operation instruction image is evaluated.
It has the ability to output the evaluation results of the driving operation.
The driving simulator program according to claim 1, wherein the driving operation instruction images are displayed side by side in the order of display in the moving image, and the remaining number of times of display is displayed. The driving simulator program according to claim 5, wherein the output of the evaluation result of the driving operation is displayed by arranging the driving operation instruction images in the order of display and displaying the correctness of the driving operation in association with the driving operation instruction image. .. An image of the cognitive function test is displayed in the video of the driving situation that the driver watches, and the driver is notified in advance that the test will be performed on the image after the driving simulation.
While updating the driving situation based on the driver's driving operation and generating the moving image, a driving simulation in which the image of the cognitive function test is included in the moving image is executed.
After the driving simulation, the cognitive function test was performed.
It has the ability to output the evaluation result of the cognitive function test and the evaluation result of driving skill.
The image of the cognitive function test is an object that appears in the moving image.
The cognitive function test is a driving simulator method that evaluates the memory ability of the driver with respect to the attributes of the object. With the processor
It has a memory to be accessed by the processor.
The processor
An image of the cognitive function test is displayed in the video of the driving situation that the driver watches, and the driver is notified in advance that the test will be performed on the image after the driving simulation.
While updating the driving situation based on the driver's driving operation and generating the moving image, a driving simulation in which the image of the cognitive function test is included in the moving image is executed.
After the driving simulation, the cognitive function test was performed.
The evaluation result of the cognitive function test and the evaluation result of the driving skill are output.
The image of the cognitive function test is an object that appears in the moving image.
The cognitive function test is a driving simulator that evaluates the memory ability of the driver with respect to the attributes of the object.

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