JP2023126641A - Control device - Google Patents

Abstract

To provide a control device which can detect an operator who is estimated to be in an undesirable condition to operate a moving body such as having dementia or the like while reducing troubles to healthy operators.SOLUTION: In a control device 10, a question control part 3 presents a driver who drives a vehicle with questions in a display part 13, and an output control part 5 issues a warning or restricts starting of an engine of the vehicle on the basis of a state of answers by the driver to the questions. In addition, the question control part 3 controls the frequency at which questions are presented from the next time on the basis of the state of answers by the driver.SELECTED DRAWING: Figure 1

Description

The present invention relates to a control device that controls a moving body.

BACKGROUND OF THE INVENTION It has been proposed to limit the driving behavior of a moving object such as a vehicle when the driver is an elderly person or the like who needs to be careful when driving.

For example, Patent Document 1 describes that a driver's guardian sets limits on the driving behavior of the driver (person to be protected) and controls the driving behavior in accordance with the driving behavior restrictions. ing.

Further, Patent Document 2 describes that whether or not to start the engine is determined based on the validity of information input by the driver.

Japanese Patent Application Publication No. 2011-192031 Japanese Patent Application Publication No. 2008-75639

In the invention described in Patent Document 1, although the guardian can restrict the driving behavior of the person to be protected, the guardian must set the restrictions in advance. Therefore, it is difficult for the guardian to impose restrictions, for example, in cases where the guardian is not aware that the person being protected is suffering from dementia, or in cases where there is normally no need to restrict the person, such as drinking or overwork.

In the invention described in Patent Document 2, a decision is made each time the engine is started, which is troublesome for a healthy driver.

Therefore, the present invention provides a control device that can detect an operator who is in a state where it is estimated that it is not desirable to operate a mobile object, such as dementia, and can reduce the inconvenience for a healthy operator. That is the issue.

In order to solve the above problem, the invention according to claim 1 includes a question presenting unit that presents questions to an operator who operates a mobile object, and a question presenting unit that presents questions to an operator who operates a mobile object, and based on the state of the answer to the question by the operator, The present invention is characterized in that it includes a regulating section that regulates the notification of a warning or the traveling of the mobile object, and a question control section that controls the frequency of presenting the question from the next time onwards based on the state of the answer.

The invention according to claim 8 is a control method for a control device that controls a moving object, which includes a step of presenting a question to an operator who operates the moving object, and a step of presenting a question to an operator who operates the moving object; The method includes a regulation step of regulating the notification of a warning or the traveling of the mobile object based on the state of the answer, and a question control step of controlling the frequency of presenting the question from next time onwards based on the state of the answer. It is characterized by

The invention according to claim 9 is characterized in that the control method according to claim 8 is executed by a computer.

FIG. 1 is a block diagram of a control device according to a first embodiment of the present invention. 2 is an example of an authentication screen in the control device shown in FIG. 1. 2 is a flowchart of the operation of the control device shown in FIG. 1. FIG. 4 is a flowchart of question display determination shown in FIG. 3; 7 is a flowchart of the operation of the control device according to the second embodiment of the present invention. 6 is a flowchart of question display determination shown in FIG. 5. FIG. It is a flow chart of operation of a control device concerning a 3rd example of the present invention.

A control device according to an embodiment of the present invention will be described below. In the control device according to an embodiment of the present invention, the question presenting unit presents a question to an operator who operates a mobile object, and the regulating unit issues a warning based on the state of the answer to the question by the operator. Notify or restrict the movement of moving objects. Further, the question control unit controls the frequency of presenting subsequent questions based on the state of the driver's answers. By doing this, it becomes possible to detect a driver who is in a condition such as dementia that is presumed to make it undesirable to operate a mobile object, based on the answers to the questions. In addition, the frequency with which subsequent questions are presented is controlled based on the state of the pilot's answers, so it is possible to reduce the frequency of questions presented to healthy pilots, thereby reducing their annoyance. .

The device further includes a calculation means for calculating a correct answer rate based on the results of answers to the pilot's questions, and the question control unit reduces the frequency of presenting subsequent questions as the correct answer rate increases, so that the correct answer rate decreases. Accordingly, the frequency of presenting subsequent questions may be increased. By doing so, it is possible to control the frequency of question presentation by taking into account the status of the pilot's answers up to that point. Furthermore, by calculating the correct answer rate by accumulating past answer results, it is possible to reduce fluctuations in the presentation frequency due to cases where a correct answer is given by chance, etc., and to make the frequency suitable for the operator's condition.

Further, when the answer to the question by the pilot is correct, the question control unit may present the next question less frequently than when the answer is incorrect. By doing this, when the pilot correctly answers a question, it is determined that the pilot is in good health, and the frequency of questions being presented can be reduced, reducing the hassle of answering questions. .

The device further includes a measurement unit that measures the time required for the pilot to input an answer to the question, and the question control unit presents the next question as the time required for the pilot to input the answer to the question increases. The frequency with which subsequent questions are presented may be decreased as the time required to input an answer to a question becomes shorter. By doing this, it is assumed that the pilot is in an unfavorable condition for piloting, not based on the content of the answer, but even if the answer is slow and takes a long time to enter. You can ask questions. In addition, if answers are input quickly and in a short period of time, the frequency of questions can be reduced to avoid bothering healthy pilots.

The vehicle may further include an acquisition unit that acquires the age of the operator, and the question control unit may not present the question if the age of the operator is less than a predetermined value. By doing so, for example, questions can be presented only to elderly people and not to other people. Therefore, it is possible to prevent operators other than elderly people from feeling bothered.

Furthermore, it may further include a transmitting means for transmitting the answer result or the correct answer rate to a predetermined contact. By doing so, the pilot's answer results or correct answer rate can be notified to the pilot's family, etc., and it becomes possible for the family, etc. to understand the symptoms of dementia, etc. in the pilot.

Further, the question control unit may change the number of questions to be asked from next time onwards based on the state of the pilot's answers. By doing this, if the pilot's answers suggest that the pilot is in an unfavorable condition for piloting, the number of questions can be increased to better understand the pilot's situation. can be accurately grasped.

Further, in the control method according to an embodiment of the present invention, in the question presentation step, a question is presented to the operator who operates the mobile object, and in the regulation step, the state of the answer to the question by the operator is Based on this, a warning is issued or the movement of a mobile object is restricted. Furthermore, in the question control step, the frequency of presenting subsequent questions is controlled based on the state of the answers. By doing this, it becomes possible to detect a driver who is in a condition such as dementia that is presumed to make it undesirable to operate a mobile object, based on the answers to the questions. Furthermore, since the frequency with which subsequent questions are presented is controlled based on the status of the pilot's answers, the frequency with which questions are presented can be lowered to reduce the annoyance of healthy pilots.

Moreover, it is good also as a control program which causes a computer to execute the above-described control method. By doing so, it becomes possible to use a computer to detect a driver who has a condition such as dementia that makes it difficult to operate a mobile object, based on the answers to the questions. Furthermore, since the frequency with which subsequent questions are presented is controlled based on the state of the answers, the frequency with which questions are presented can be lowered to reduce the annoyance of healthy pilots.

A control device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. The on-vehicle device 1 is mounted on a vehicle as a moving body, for example, and as shown in FIG. 1, an input section 11, a display section 13, a vehicle control section 14, and a communication section 15 are electrically connected. The on-vehicle device 1 and the communication section 15 constitute the control device 10 according to this embodiment. Note that the moving object on which the control device 10 is mounted is not limited to a vehicle, but may be a ship, an aircraft, or the like.

The on-vehicle device 1 includes a driver authentication section 2, a question control section 3, an answer result storage section 4, and an output control section 5. The in-vehicle device 1 may be configured as, for example, an ECU (Electronic Control Unit), and the control unit of a device such as a car navigation device may include a driver authentication unit 2, a question control unit 3, an answer result storage unit 4, and an output control unit. It may be configured to perform the function of section 5.

The driver authentication unit 2 authenticates the driver of the vehicle. Examples of the authentication method include displaying options on the display unit 13 as shown in the upper part of FIG. 2, and using fingerprint authentication as shown in the lower part of FIG. Alternatively, the password may be input from the input unit 11.

The question control unit 3 creates questions to be presented to the driver (operator) and causes the display unit 13 to display the questions. Further, the question control unit 3 determines whether the answers to the questions are correct or incorrect, calculates the percentage of correct answers, and determines and controls the presentation frequency of the questions. The detailed operation will be described later. That is, the question control unit 3 controls the question presentation unit that presents questions to the driver who drives (operates) the vehicle, and the frequency of presenting subsequent questions based on the state of the driver's answers. It functions as a question control section.

The answer result storage unit 4 is composed of a storage means such as a non-volatile memory or an HDD (Hard Disk Drive), and stores the driver's response history to the questions created by the question control unit 3, the driver's personal information, etc. accumulate. This answer history may be accumulated only for a predetermined period, such as the most recent six months. Further, the answer result storage unit 4 may be configured with an external database server or the like. When configured as an external database server, information regarding the authenticated driver is acquired from the database server, for example, via the communication unit 15.

The output control unit 5 may, for example, display a warning on the display unit 13 or restrict the vehicle control unit 14 from starting the engine, etc., based on the answer results and correct answer rate determined by the question control unit 3. Output control signals. That is, the output control unit 5 functions as a regulation unit that issues a warning or regulates the running of the vehicle based on the state of the answer to the question by the driver.

The input unit 11 is composed of a touch panel, push buttons, etc. superimposed on the display unit 13, and is used for driver authentication shown in FIG. 2, inputting answers to questions, etc. Note that the answer may be input by voice input.

A signal indicating that the ignition switch (key switch) or push switch of the vehicle has been operated (turned on) is input to the IGN 12. In this embodiment, when the signal is input from the IGN 12, driver authentication by the driver authentication section 2 is started.

The display unit 13 is configured with, for example, a liquid crystal display or an EL (Electro Luminescence) display, and displays the above-mentioned driver authentication screen, questions, warnings, and the like.

The vehicle control unit 14 is, for example, an ECU that controls the engine of the vehicle, and when a signal for restricting activation is input from the control device 1, restricts the activation of the engine (prevents it from starting).

The communication unit 15 is wirelessly connected to the Internet, a public line network, etc., and communicates with predetermined contact information such as sending e-mails under the control of the control device 1.

Next, the operation (control method) of the control device 10 having the above-described configuration will be explained with reference to the flowchart shown in FIG. 3. The flowchart in FIG. 3 is mainly executed by the on-vehicle device 1. Furthermore, when the on-vehicle device 1 is configured with an ECU or a CPU (Central Processing Unit), this flowchart is converted into a computer program, and the control method becomes a control program executed by the computer. In step S101 of FIG. 3, the driver authentication unit 2 determines whether the IGN 12 is ON or not. If it is ON (YES), the process proceeds to step S102, and if it is OFF (NO), the process proceeds to step S102. Wait there.

Next, in step S102, the driver authentication unit 2 performs driver authentication using the above-mentioned options, fingerprint authentication, etc. If the authentication is successful, the process proceeds to step S103; if it fails, the process proceeds to step S115, and the initial authentication is performed. If the personal information is not set, the process advances to step S113 to register the driver.

Next, in step S103, the question control unit 3 reads the personal information and answer history information of the driver authenticated in step S102 from the answer result storage unit 4, and the process proceeds to step S104. Examples of personal information include name, date of birth, address, and contact email address. The answer history includes, for example, the number of questions, the number of correct answers, and the date of the previous question presentation. Note that the contact information includes the contact information of the driver's family, relatives, etc., but may also be the family hospital, government office, police station, etc.

Next, in step S104, the question control unit 3 determines whether or not to display the question. If the question is displayed, the process proceeds to step S105; if not, the process ends. The detailed operation of this step will be described later.

Next, in step S105, the question control unit 3 displays (presents) a question (first question) on the display unit 13, prompts for input of an answer, and proceeds to step S106. Questions may be created from personal information (date of birth, age, zodiac sign, name of prefecture/city/town/village of address, etc.), or questions created from information not related to a specific individual (such as today's date, day of the week, current location, etc.). (prefectures, cities, towns, villages, etc.). Alternatively, it may be a simple puzzle or a simple calculation problem. It is also desirable that the questions be such that a person in good health can easily answer them.

Next, in step S106, the question control unit 3 processes the answer results of the question displayed in step S105, and the process proceeds to step S107. As for processing of answer results, for example, if the answer to a question is correct, the number of questions is counted up and the number of correct answers is counted up, and if the answer to a question is incorrect, only the number of questions is counted up. do.

Next, in step S107, the question control unit 3 displays (presents) a question (second question) on the display unit 13, prompts the user to input an answer, and proceeds to step S108. The content of the question is preferably different from that in step S105.

Next, in step S108, the question control unit 3 processes the answer result of the question displayed in step S107, and the process proceeds to step S109. In this embodiment, the number of questions is two, but if there are three or more questions, the steps of displaying and answering the questions and processing the answer results are repeated for the number of questions. If there is only one question, steps S107 and S108 are omitted.

Next, in step S109, the question control unit 3 determines whether or not the driver has answered all questions correctly with respect to the questions displayed in steps S105 and S107, and if all questions have been answered correctly (in the case of YES), the process ends. , if all the questions are not answered correctly (in the case of NO), the process advances to step S110. Note that in this step, for example, if the correct answer rate for the last six months is less than a predetermined value (for example, less than 98%), the process may proceed to step S110.

Next, in step S110, as a result of the determination in step S109, not all questions were answered correctly, so the contact information is sent, for example, "You did not answer the vehicle startup question correctly. The correct answer rate for 6 months is (number of correct answers)/( (number of questions).'' Note that the correct answer rate included in the email may be expressed as a percentage, or may be the current correct answer rate. Alternatively, it may be the answer result (question content and its answer).

Next, in step S111, the question control unit 3 determines whether or not the driver answered all the questions incorrectly with respect to the questions displayed in steps S105 and S107. The process advances to step S112, and if all questions are not answered incorrectly (in the case of NO), the process ends. Note that in this step, for example, if the correct answer rate for the last six months is less than a predetermined value (for example, less than 80%), the process may proceed to step S112.

Next, in step S112, since all the questions were answered incorrectly in step S111, the question control unit 3 causes the display unit 13 to display a message such as "You don't seem to be feeling well today. Please refrain from driving." and exit. Incidentally, in addition to or in place of the message display, a control signal may be output to the vehicle control unit 14 to restrict starting of the engine.

On the other hand, in step S113, since it was determined in step S102 that the initial authentication or personal information was not set, the driver authentication unit 2 determines whether or not to set personal information. If not, the process proceeds to step S114, and if not (NO), the process proceeds to step S105. Whether or not to set a question may be determined by, for example, displaying a message to that effect on the display unit 13 and allowing the user to select.

Next, in step S114, the driver authentication unit 2 prompts for the input of personal information to register the driver, and the process proceeds to step S105. The steps after step S105 are the same as those described above. The questions to be asked when this step is executed may be created based on the personal information etc. input in this step. Furthermore, questions when personal information is not set may be created from information that is not related to a specific individual.

Further, in step S115, since the authentication failed in step S102, the driver authentication unit 2 outputs a control signal to the vehicle control unit 14 disabling the start of the vehicle engine. Note that although activation is disabled in this embodiment, this step may be omitted if authentication fails due to a device-side problem such as fingerprint recognition accuracy, for example.

Next, the question display determination in step S104 mentioned above will be explained with reference to the flowchart shown in FIG. The flowchart shown in FIG. 4 is executed by the question control section 3.

First, in step S201, for example, it is determined whether the driver's age is 70 years old or older based on the personal information read by the driver authentication unit 2, and if the driver is 70 years old or older (in the case of YES), step Proceeding to S202, if the person is under 70 years old (NO), the question control unit 3 determines not to display the question. That is, the driver authentication section 2 functions as an acquisition section that acquires the age of the driver. Further, the question control unit 3 does not present questions when the age of the driver is less than a predetermined age.

Note that the age to be determined in this step is not limited to 70 years old, and may be set to an age at which an elderly person can be determined. In this embodiment, this step is provided to target elderly people, but this step may be omitted if the process is performed regardless of age.

Next, in step S202, the cumulative correct answer rate for the most recent six months is calculated based on the information on the answer history (number of correct answers, number of questions) read by the driver authentication unit 2, and determined as follows. If the correct answer rate is 98% or more, proceed to step S203; if the correct answer rate is 90% or more but less than 98%, proceed to step S204; if the correct answer rate is 80% or more and less than 90%, proceed to step S205, and answer correctly. If the percentage is less than 80%, it is determined that the question should be displayed. That is, the question control unit 3 functions as a calculation means that calculates the correct answer rate based on the answers to the questions.

Note that, as explained in step S105, the questions in this example are answered correctly if the person is in a healthy state, so if the correct answer rate is less than 80%, there is a problem with the health condition such as dementia. The question is always displayed based on the assumption that this is the case. Also, since there is no data in the initial state, questions are displayed.

Next, in step S203, it is determined whether 14 days or more have passed since the previous question was presented. If 14 days have passed (YES), it is determined that the question is to be displayed; if not ( In the case of NO), it is determined that the question is not displayed. In this step, since the probability of correct answer is 98% or higher, which is quite high, the question presentation frequency is set to be long, assuming that the patient is in a healthy state.

Next, in step S204, it is determined whether 7 days or more have passed since the previous question was presented. If 7 days or more have passed (YES), it is determined that the question will be displayed; if not ( In the case of NO), it is determined that the question is not displayed. In this step, since there is a high probability that the correct answer rate is 90% or more and less than 98%, the frequency of presenting questions is set to be shorter but less frequent than when the correct answer rate is 98% or more, assuming that the person is in an almost healthy state. ing.

Next, in step S205, it is determined whether one day or more has passed since the previous question was presented. If one day has passed (YES), it is determined that the question is to be displayed; if not, ( In the case of NO), it is determined that the question is not displayed. In this step, since the correct answer rate is 80% or more and less than 90%, it is assumed that a health problem is suspected, and the frequency of question presentation is set to be high.

Note that the numerical value of the correct answer rate determined in step S202 is an example, and may be changed as appropriate. In this embodiment, as described above, the questions are questions that would be answered correctly if the subject is in a healthy state, so the standard for the correct answer rate is set high.

In addition, the reason why the correct answer rate for the most recent 6 months is used in step S202 in FIG. be. Moreover, by setting the period to the most recent period, recent trends can be known. Note that this predetermined period of six months may of course be changed, and may be changed to the number of questions (the most recent 100 questions, etc.) instead of being limited to the period.

That is, according to the flowchart of FIG. 4, as the driver's correct answer rate increases, the question control unit 3 reduces the frequency of presenting questions from next time onwards, and as the correct answer rate decreases, presents questions from next time onwards. Presented more frequently.

According to this embodiment, in the control device 10, the question control unit 3 causes the display unit 13 to present questions to the driver who drives the vehicle, and the output control unit 5 controls the status of the answers to the questions asked by the driver. Based on this, the notification of a warning or the starting of the vehicle engine is restricted. Further, the question control unit 3 controls the frequency of presenting subsequent questions based on the state of the driver's answers. By doing this, it is possible to detect a driver who is in a condition such as dementia that makes driving a vehicle infeasible, based on the answers to the questions. Furthermore, since the frequency of presenting subsequent questions is controlled based on the state of the driver's answers, it is possible to reduce the frequency of presenting questions and reduce the annoyance for healthy drivers.

In addition, the question control unit 3 calculates the correct answer rate based on the results of the answers to the questions of the driver, and as the correct answer rate increases, the frequency of presenting the questions from next time onwards is decreased, and as the correct answer rate decreases, the frequency of presenting the questions from next time onwards is increased. questions are presented more frequently. By doing so, it is possible to control the frequency of presentation of questions in consideration of the state of the driver's answers up to that point. In addition, fluctuations in presentation frequency due to cases where a correct answer is given by chance are reduced.

Further, the driver authentication section 2 acquires the age of the driver, and the question control section 3 does not present any questions when the age of the driver is less than 70 years old. By doing this, questions can be presented only to elderly people and not to other people. Therefore, drivers other than the elderly can be prevented from feeling troubled.

Further, the control device 10 includes a communication unit 15 that transmits the correct answer rate to a contact information such as a guardian when a question is answered incorrectly. By doing so, the driver's family, etc. can be informed of the driver's answer result or correct answer rate, and the family, etc. can understand the signs of dementia, etc. of the driver.

Next, a control device 10 according to a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. Note that the same parts as those in the first embodiment described above are given the same reference numerals, and the description thereof will be omitted.

This embodiment differs in the method of question display determination in step S104. In this embodiment, a counter is provided in the question control section 3. This counter can count up and down between 0 and 3. FIG. 5 shows a flowchart of the operation of the control device 1 according to this embodiment.

Steps S101 to S115 are the same as in the first embodiment. In step S301, which is proceeded to when all questions are not answered correctly in step S109 (in the case of NO), the counter is counted down (count value - 1) and the process proceeds to step S110.

On the other hand, in step S302, which is proceeded to when all questions are answered correctly in step S109 (in the case of YES), the counter is counted up (count value +1) and the process ends.

FIG. 6 is a flowchart regarding question display determination according to this embodiment. In FIG. 6, steps S201 and S203 to S205 are the same as in the first embodiment. In FIG. 6, in step S401, which is executed instead of step S202, determination is made based on the count value of the counter described above. That is, if the count value is "3", the process advances to step S203; if the count value is "2", the process advances to step S204; if the count value is "1", the process advances to step S205, and if the count value is "0" In this case, it is determined that the question is to be displayed.

In other words, in this embodiment, the question display frequency is changed based only on the driver's previous answer results. This means that as the count value increases, the frequency of displaying subsequent questions decreases, and as the count value decreases, the frequency of displaying subsequent questions increases. That is, when the driver's answer to a question is correct, the question control unit 3 presents the question less frequently from next time onwards than when the answer is incorrect.

Note that, as is clear from the flowchart of FIG. 6, this counter does not become a value greater than "3" even if all questions are answered correctly, and does not become less than "0" even if incorrect answers are repeated.

Further, the count value of the counter does not have to increase or decrease by 1. For example, when presenting two questions as shown in FIG. 5, the number may be changed depending on the number of questions, such as adding -1 for one incorrect answer and -2 for two incorrect answers.

According to this embodiment, when the driver's answer to a question is correct, the question control unit 3 presents the question less frequently from next time onwards than when the answer is incorrect. By doing so, if the answer is correct, it is determined that the driver is in a healthy state, and the frequency of presentation of the questions can be lowered to reduce the annoyance.

Next, a control device according to a third embodiment of the present invention will be described with reference to FIG. Note that the same parts as those in the first and second embodiments described above are given the same reference numerals, and the description thereof will be omitted.

This embodiment differs in the method of question display determination in step S104. In this embodiment, the question control unit 3 uses a timer or the like to measure the time (answer time) required from displaying the question on the display unit 13 until inputting the answer. Note that this response time may be the time until the user starts inputting the answer, or may be the time until the user finishes inputting the answer.

FIG. 7 is a flowchart regarding question display determination according to this embodiment. In FIG. 7, steps S201 and S203 to S205 are the same as in the first embodiment. In FIG. 7, in step S501 executed in place of step S202, determination is made based on the response time measured by the above-mentioned timer or the like. That is, the question control section 3 functions as a measurement section that measures the time required for the driver to input an answer to a question. In step S501, if the response time is less than 10 seconds, proceed to step S203; if the response time is 10 seconds or more and less than 20 seconds, proceed to step S204; if the response time is between 20 seconds and less than 30 seconds, proceed to step S205. If the response time is 30 seconds or more, it is determined that the question will be displayed.

In other words, in this embodiment, the question display frequency is changed based only on the driver's response time. That is, the question control unit 3 increases the frequency of displaying questions as the time required to input the driver's answer becomes longer, and decreases the frequency of displaying questions as the time becomes shorter.

Note that the reference time for determining the response time shown in FIG. 7 is an example, and may be changed as appropriate depending on the method of inputting the answer to the question (choices, numerical input, voice input, etc.). Further, when the number of questions is two as shown in FIG. 3, the answer time may be the average answer time of two questions, or may be determined based on the answer time of either one. Further, this response time may also be accumulated in the response result storage section 4 as response history information, and the determination may be made based on the average response time including the past history.

Furthermore, this embodiment may be combined with the first and second embodiments. In other words, the question display frequency may be changed based on both the correct answer rate, count value, and answer time.

According to this embodiment, the question control unit 3 measures the time required for the driver to input an answer to the question, and adjusts the next and subsequent questions as the time required for the driver to input the answer to the question becomes longer. The frequency of presenting questions is increased, and as the time required to input an answer to a question is shortened, the frequency of presenting subsequent questions is decreased. By doing this, it is assumed that the driver is in an unfavorable condition for driving, not based on the content of the answer, but even if the time it takes to input the answer is slow, and questions are asked frequently. You can do it like this. Furthermore, if answers are input quickly and in a short period of time, the frequency of questions can be reduced to avoid bothering healthy drivers.

Note that in each of the embodiments described above, the number of questions is fixed, but the number of questions may be changed, for example. For example, as the correct answer rate or count value becomes smaller or the response time becomes longer, the number of questions from next time onwards is increased, and as the correct answer rate or count value becomes larger or the answer time becomes shorter, the number of questions from next time onwards is increased. You may also do so. That is, the number of questions to be asked from next time onwards may be changed based on the state of the driver's answers.

In addition, in each of the above-mentioned examples, it was explained that the test was mainly carried out for pilots who are at risk of dementia, but it is also possible to carry out the test for pilots who are presumed to be drinking or overworked, for example. It is. The present invention is applied because even if a person is drinking alcohol (intoxication, etc.) or is overworked (drowsiness, loss of concentration, etc.), the person may answer simple questions incorrectly or take time to answer. Is possible.

Further, in each of the above-described embodiments, the explanation has been made as a device mounted on a vehicle, but the present invention can be applied to a device such as a smartphone that is detachable from a vehicle as long as it displays a warning on a display unit. In this case, driver authentication may be started, for example, by mounting the device on a cradle or the like, or by recognizing that the driver is in a parking lot from the current location.

Further, in each of the above-described embodiments, the driver is authenticated, but in the case of a moving object such as a rental car operated by an unspecified number of people, the authentication may be omitted. In this case, the second and third embodiments in which the past history is not essential may be applied, and the count value etc. may be initialized at the time of lending. Further, the questions may be created from information not related to a specific individual, simple puzzles, or simple calculation problems.

In addition, in each of the above-mentioned examples, an email was sent to the contact if the answer was incorrect, but the email is sent periodically (every month, every 10 questions, etc.) regardless of the answer. You can also send it. Furthermore, the email may include not only the answer results and correct answer rate, but also the answer time.

Further, the present invention is not limited to the above embodiments. That is, those skilled in the art can implement various modifications based on conventionally known knowledge without departing from the gist of the present invention. Of course, such modifications fall within the scope of the present invention as long as they still have the configuration of the control device of the present invention.

1 On-vehicle device 2 Driver authentication section 3 Question control section (question presentation section, question control section)
4 Answer result storage section 5 Output control section (regulation section)
10 Control device 11 Input section 13 Display section 14 Vehicle control section 15 Communication section S104 Question display judgment (Question control process)
S105 Question display/answer (1) (question presentation process)
S107 Question display/answer (2) (question presentation process)
S112 Warning display (notification regulation process)

Claims (1)

a question presentation unit that presents questions to an operator who operates the mobile object;
a regulation unit that issues a warning or regulates the travel of the mobile object based on the state of the answer to the question by the operator;
a question control unit that controls the frequency of presenting the question from next time onwards based on the state of the answer;
A control device comprising: