JP2018135002A - Physical checkup system for use in vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a physical checkup system for use in a vehicle capable of determining a change in the driving capability of an occupant and thereby improving the driving capability.SOLUTION: A physical checkup system for use in a vehicle includes: a bio-information detection unit 16 for detecting the bio-information of an occupant; a driving operation information detecting unit 18 for detecting driving operation information on the driving operation of the vehicle by the occupant; a peripheral information detecting unit 20 for detecting peripheral information of the vehicle; a determination unit 30 for determining a change in the driving capability of the occupant on the basis of driving capability information on the occupant's past driving capability acquired from a health and driving capability information management center 32 and on the basis of driving capability information lead out on the basis of the bio-information, the driving operation information, and peripheral information; a display unit 24 for displaying the determination result of the determination unit 30; and a control unit 26 for performing line-of-sight guidance display control for improving the driving capability when it is determined that the driving capability has declined.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle health diagnosis device that diagnoses the driving ability of a driver who drives a vehicle.

  When driving a vehicle, it is preferable that the state of health is good and there is no decrease in concentration, etc. Therefore, a technique for performing a health check on an occupant has been proposed.

  For example, in the technique described in Patent Document 1, a vehicle health diagnosis device that adjusts the sitting posture of an occupant has been proposed. Specifically, in the technique described in Patent Document 1, the biological information detection means provided on the steering wheel detects biological information of an occupant seated on the seat and outputs a biological information signal, and the diagnostic means uses the biological information. Diagnose the health of the passenger based on the signal. Further, the physique information acquisition means acquires the occupant's physique information, the normal posture derivation means acquires the normal pose of the occupant suitable for the biometric information detection means to detect the biometric information based on the acquired physique information. Ask for posture. Further, the current posture information acquisition unit acquires posture information for specifying the sitting posture of the occupant, and the posture control unit controls the posture adjustment unit that adjusts the posture of the occupant. Then, when the posture control means controls the posture adjustment means, the difference between the current posture and the normal posture is obtained. The posture adjustment means is controlled.

JP 2005-238968 A

  However, in Patent Document 1, the normal posture is adjusted so that a good biological signal can be acquired. However, information on the driving ability of the occupant is not detected, and the influence of the driving ability in a healthy state is taken into consideration. There is room for improvement.

  The present invention has been made in consideration of the above-described facts, and an object of the present invention is to provide a vehicle health diagnostic apparatus that can improve the driving ability by determining a change in the driving ability of the occupant.

  In order to achieve the above object, an invention according to claim 1 detects an external information acquisition unit that acquires driving capability information related to a past driving capability of a passenger to be determined from an external information center, and detects biological information of the passenger. The biological information detection unit, the driving operation information detection unit that detects driving operation information related to the driving operation of the vehicle by the occupant, the peripheral information detection unit that detects the peripheral information of the vehicle, and the driving acquired by the external information acquisition unit Derived based on capability information, the biological information detected by the biological information detection unit, the driving operation information detected by the driving operation information detection unit, and the peripheral information detected by the peripheral information detection unit A determination unit that determines a change in the driving capability of the occupant based on the driving capability information, a display unit that displays a determination result of the determination unit, and the driving capability is reduced. If it is determined that and a control unit for performing a training control to improve driving skills.

  According to the first aspect of the present invention, the external information acquisition unit acquires past driving ability information of the determination target occupant from the external information center, and the biometric information detection unit detects the occupant's biometric information, The driving operation information detecting unit detects driving operation information, and the surrounding information detecting unit detects surrounding information.

  The external center may store past detection results for each occupant such as biological information, driving operation information, and peripheral information as driving ability information, or may be derived from the biological information, driving operation information, and peripheral information. The driving ability information for each occupant may be stored. In addition, the biological information unit detects various biological information such as body temperature, body fat, weight, blood pressure, and pulse. In addition, the driving operation information detection unit determines driving ability such as reaction speed, wide field of view, and degree of recognition of the external environment (signals, signs, etc.), for example, regarding recognition, determination, and operation when the driver drives. To detect driving operation information during daily driving. In addition, the surrounding information detection unit detects, for example, at least one of a traveling state of the own vehicle, a traveling state of another vehicle, a pedestrian, road information, and sign / signal information.

  In the determination unit, a change in the driving capability of the occupant is determined based on the acquired driving capability information of the past determination target and the driving capability information derived based on the biological information, the driving operation information, and the peripheral information, The determination result is displayed on the display unit.

  In the control unit, when it is determined that the driving ability is reduced, the training control for improving the driving ability is performed, and the driving ability can be improved by the training control. That is, it becomes possible to improve the driving ability by determining a change in the driving ability of the occupant.

  For example, in the case of a vehicle that is capable of automatic driving, it may be switched between automatic driving and manual driving depending on the passenger's condition, but the current driving ability of the passenger should be displayed during automatic driving or after driving Can be fed back by. In addition, it is possible to recover the driving ability by performing the training control during the automatic driving, and to suppress the lowering of the driving ability.

  As described above, according to the present invention, there is an effect that it is possible to provide a vehicular health diagnostic apparatus capable of determining a change in the driving ability of an occupant and improving the driving ability.

1 is a block diagram showing a schematic configuration of a vehicle health diagnostic apparatus according to an embodiment. It is a figure for demonstrating an example of gaze guidance display control. It is a block diagram which shows an example of structures other than the determination part in the cloud computer of the vehicle health diagnostic apparatus which concerns on this embodiment. It is a flowchart which shows an example of the flow of the process performed in the control part by the side of the vehicle of the medical examination apparatus for vehicles which concerns on this embodiment. It is a flowchart which shows an example of the flow of the process performed in the determination part of the medical examination apparatus for vehicles which concerns on this embodiment.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of the vehicle health diagnostic apparatus according to the present embodiment.

  The vehicle health diagnosis apparatus 10 according to the present embodiment includes a communication unit 14, a biological information detection unit 16, a driving operation information detection unit 18, a surrounding information detection unit 20, a driver identification unit 22, a control unit 26, a display unit 24, A determination unit 30 and a personal database 34 are provided.

  In the present embodiment, the vehicle 12 is provided with a communication unit 14, a biological information detection unit 16, a driving operation information detection unit 18, a surrounding information detection unit 20, a driver identification unit 22, a control unit 26, and a display unit 24. . The determination unit 30 is provided in the cloud computer 28, and the personal database 34 is provided in the health / driving ability information management center 32. In the present embodiment, the determination unit 30 is described as a configuration provided in the cloud computer 28 in order to increase processing capacity, but may be provided on the vehicle 12 side. Alternatively, the personal database 34 may be provided on the cloud computer 28 and the health / driving ability information management center 32 may be omitted, and communication may be performed only between the vehicle 12 and the cloud computer 28. Alternatively, the determination unit 30 may be provided in the health / driving ability information management center 32, and the cloud computer 28 may be omitted to perform communication between the vehicle and the health / driving ability information management center 32.

  The communication unit 14 connects the vehicle 12 and the cloud computer 28 by wireless or the like, and exchanges information. In the present embodiment, information detected in the vehicle 12 is transmitted to the cloud computer 28 and the determination result of the determination unit 30 of the cloud computer 28 is received.

  The biological information detection unit 16 detects the biological information of the occupant. As the biological information, for example, various biological information such as body temperature, body fat, weight, blood pressure, and pulse are detected. The biometric information detection unit 16 detects biometric information using, for example, various sensors provided in a wearable device worn by a steering wheel, an assist grip, a seat, or an occupant. Various types of biological information are detected by applying known techniques as the various types of sensors.

  The driving operation information detection unit 18 detects driving operation information related to the driving operation by the occupant. In the present embodiment, the driving operation information detection unit 18 relates to recognition, determination, and operation when the driver is driving, such as driving speed such as reaction speed, wide field of view, and degree of recognition of the external environment (signals, signs, etc.). The driving operation information for determining is detected during daily driving. For example, driving operation information is provided by at least one of an accelerator ECU (Electronic Control Unit), a brake ECU, a steering ECU, a shift ECU, an acceleration sensor, a vehicle speed sensor, and a driver monitor camera that detects the driver's line of sight, each mounted on a vehicle. Is detected. Specifically, the accelerator operation is detected as driving operation information by the accelerator ECU. Further, the brake control ECU detects the operation state of the brake as driving operation information. Further, the shift control ECU detects the shift operation state as driving operation information. Further, acceleration applied to the vehicle by the acceleration sensor is detected as driving operation information. Further, the vehicle speed is detected as driving operation information by the vehicle speed sensor. Further, the driver's line of sight is detected as driving operation information by a driver monitor camera that photographs the driver.

  The surrounding information detection unit 20 detects information related to the environment around the vehicle. For example, at least one of a traveling state of the host vehicle, a traveling state of another vehicle, a pedestrian, road information, and sign / signal information is detected as peripheral information.

  The driver identifying unit 22 identifies a driver who drives the vehicle and receives a diagnosis. For example, the driver may be photographed with a driver monitor camera, and the driver may be identified based on the photographing result. Alternatively, the driver may be recognized using other authentication methods (such as biometric authentication and card authentication).

  The display unit 24 displays various information such as the determination result of the determination unit 30. The display unit 24 displays information on at least one of a front windshield glass, a center display, and a meter display, for example. When displaying information on the front windshield glass, for example, the information may be displayed on the front windshield glass by a head mounted display (HUD), or by using an organic EL (Organic Electro-Luminescence) film or the like. Information may be displayed on the windshield glass.

  The control unit 26 comprehensively controls each part in the vehicle 12 and performs training in order to improve the driver's ability when the driver's visual field range is reduced and the line-of-sight movement speed / frequency is reduced. The driver is trained by performing the gaze guidance display control as a control. As the line-of-sight guidance display control, for example, as shown in FIG. 2, a mark such as “★” is displayed on the front windshield glass, and the line of sight is guided by moving from the center to the outside. Then, the line of sight is confirmed by the line of sight detection camera or the like, and the time required for the line of sight to match the direction of “★” is reduced. Also, in order to consciously widen the field of view, a frame line is displayed to improve the dynamic visual acuity.

  The determination unit 30 has the function of an external information acquisition unit, and acquires the driving capability information stored in the personal database 34 from the health / driving capability information management center 32. The driving ability information will be described as acquiring biological information, driving operation information, and peripheral information detected in the past, but the driving ability information derived from the biological information, driving operation information, and peripheral information is acquired. May be.

  The determination unit 30 includes the driving capability information derived from the past information of the determination target driver acquired from the health / driving capability information management center 32, the biological information detected by the biological information detection unit 16, and the driving operation. Based on the driving operation information detected by the information detection unit 18 and the driving capability information derived based on the peripheral information detected by the peripheral information detection unit 20, a change in the current driving capability of the driver is determined. The details of the determination method of the change in driving ability by the determination unit 30 will be described later.

  The personal database 34 of the health / driving ability information management center 32 stores the personal data of the driver as driving ability information. For example, the cloud computer 28 collects the detection results of the biological information detection unit 16, the driving operation information detection unit 18, and the surrounding information detection unit 20 via the communication unit 14. The collected information is transmitted to the health / driving ability information management center 32 and stored in the personal database 34 as past driving ability information. FIG. 1 shows an example in which Mr. A's personal data 34A and Mr. B's personal data 34B are stored.

  Here, storage of various types of driving capability information related to driving capability in the personal database 34 of the health / driving capability information management center 32 and determination of driving capability by the determination unit 30 of the cloud computer 28 will be described.

  In the present embodiment, biological information, driving operation information, and peripheral information are detected by the vehicle 12 and stored as a personal database 34 in the health / driving capability information management center 32 for each driver. Here, when storing as the personal database 34, in order for the determination unit 30 to determine the driving ability, for example, the detected peripheral information may be divided into cases, and the driving operation information and biometric information for each scene may be stored. Good. As an example, driving operation information such as a brake operation, a steering operation, and a line-of-sight direction in a scene in which a brake light of a vehicle ahead lights up, and biological information such as a driver's blood pressure and pulse are stored in association with each other. As another example, in a scene where there are pedestrians and bicycles when turning right or left, driving operation information such as a brake operation, a steering operation, and a line-of-sight direction, and biological information such as a blood pressure and a pulse of the driver are stored in association with each other. To do. By storing the driving operation information and biometric information for each scene, it is possible to obtain the driver's reaction speed and the like as driving ability information from the driving operation information and biometric information in a similar scene. The driving ability information may be obtained by the determination unit 30, but the health / driving ability information management center 32 may derive driving ability information such as reaction speed and store it in the personal database 34.

  Therefore, when the determination unit 30 receives a determination request, the determination unit 30 acquires biological information, driving operation information, and peripheral information detected by the vehicle, and performs driving in a similar scene from the information stored in the personal database 34. The change in driving ability is determined by comparing the reaction speed of the person. For example, the determination unit 30 calculates, as driving ability information, a reaction time until the driver performs a brake operation, a reaction time until a steering operation is performed, and the like after the brake light is turned on during a predetermined range of pulses. Then, by comparing the current reaction time with the reaction time obtained from the information stored in the personal database 34, the determination unit 30 can determine whether there is a decrease in driving ability. The determination as to whether or not there is a decrease in the driving ability is made, for example, when the reaction time is delayed for a predetermined time or more and it is determined that the driving ability is decreasing. In addition, as an example of determining whether there is a decrease in driving ability, other than this, the time required until brake braking is applied in the brake braking scene after finding a pedestrian or bicycle crossing when turning left or right You may determine by comparing with a track record. Or you may determine by comparing with the past results, the time required when putting in a parking lot, the frequency | count of turning back, the position shift from a frame line, etc.

  As shown in FIG. 3, the cloud computer 28 may include an on-demand processing unit 36 in addition to the determination unit 30.

  For example, the on-demand processing unit 36 is communicably connected to a communication device 38 provided at the driver's home and the health / driving ability information management center 32. Then, on the TV monitor 40 in the living room of the driver's home, the surrounding environment information is displayed on demand as a video together with the driving operation information of the own vehicle stored in the health / driving ability information management center 32. At this time, it is possible to objectively determine one's driving tendency by highlighting other vehicles, signs, road information, pedestrians, etc., and looking back on whether there were any oversights.

  Then, the flow of the specific process performed in the control part 26 by the side of the vehicle 12 of the vehicle health diagnostic apparatus 10 which concerns on this embodiment comprised as mentioned above is demonstrated. FIG. 4 is a flowchart showing an example of the flow of processing performed by the control unit 26 on the vehicle 12 side of the vehicle health diagnostic apparatus 10 according to the present embodiment. Note that the processing of FIG. 4 takes into account the case where gaze guidance display control is required, such as when instructed by the driver at the time of stopping, when the vehicle stops at a red light, etc. It is preferably performed at a timing such as a timing when the vehicle is not traveling. In a vehicle capable of automatic driving, the timing during automatic driving may be used.

  In step 100, the control unit 26 controls the driver identifying unit 22, identifies the driver of the vehicle, and proceeds to step 102. The driver identification result is output to the control unit 26 as driver identification information. For example, as described above, the driver may be identified by photographing the driver using a driver monitor camera and identifying the driver based on the photographing result. Alternatively, the driver may be recognized using other authentication methods (such as biometric authentication and card authentication).

  In step 102, the control unit 26 acquires the driver's biometric information detected by the biometric information detection unit 16, and proceeds to step 104. As an example of the biological information detected by the biological information detection unit 16, various biological information such as body temperature, body fat, weight, blood pressure, and pulse are detected as described above.

  In step 104, the control unit 26 acquires the driving operation information detected by the driving operation information detection unit 18, and proceeds to step 106. As described above, the driving operation information detected by the driving operation information detection unit 18 relates to the recognition speed, the judgment, and the operation when the driver is driving, the reaction speed, the wide field of view, the external environment (signals, signs, etc.) ) Driving operation information for determining driving ability, such as recognition degree.

  In step 106, the control unit 26 acquires the peripheral information detected by the peripheral information detection unit 20 and proceeds to step 108. As described above, the peripheral information detected by the peripheral information detection unit 20 detects at least one of the traveling state of the host vehicle, the traveling state of the other vehicle, the pedestrian, the road information, and the sign / signal information, as described above. .

  In step 108, the control unit 26 controls the communication unit 14 to transmit each of the driver identification information, biometric information, driving operation information, and surrounding information to the determination unit 30 of the cloud computer 28, and the current state of the occupant A situation determination request is made and the process proceeds to step 110.

  In step 110, the control unit 26 determines whether or not the determination result corresponding to the determination request in step 108 has been received from the cloud computer 28 via the communication unit 14. The process waits until the determination is affirmed and proceeds to step 112.

  In step 112, the control unit 26 controls the display unit 24 to display the received determination result and proceeds to step 114. For example, when it is received that there is no change in driving ability as a determination result, it is displayed on the display unit 24 that there is no change in driving ability, and when the driving ability is lowered, the driving ability is lowered. This is displayed on the display unit 24 to notify that training is necessary.

  In step 114, the control unit 26 determines whether or not the driving ability needs to be improved. The determination is based on the determination result of the current state of the occupant determined by the determination unit 30 of the cloud computer 28, and it is determined whether or not the driving ability is reduced. If the determination is affirmative, the process proceeds to step 116. If the result is negative, the series of processing of the control unit 26 is terminated as it is.

  In step 116, the control unit 26 performs line-of-sight guidance display control and ends the series of processes. For example, as shown in FIG. 2, a mark such as “★” is displayed on the front windshield glass, and the line of sight is guided by moving from the center toward the outside. Then, the line of sight is confirmed by the line of sight detection camera or the like, and the time required for the line of sight to match the direction of “★” is reduced. Also, in order to consciously widen the field of view, a frame line is displayed to improve the dynamic visual acuity. This makes it possible to improve the driving ability when the driving ability is reduced. In addition, it is possible to recover the normal state by suppressing the tendency of visual field reduction due to aging by gaze guidance. In addition, it is possible to promote improvement of cognitive function by specifying “★” and improving the reaction speed.

  Next, the process performed in the determination part 30 of the cloud computer 28 of the vehicle health diagnostic apparatus 10 according to the present embodiment will be described. FIG. 5 is a flowchart illustrating an example of a flow of processing performed by the determination unit 30 of the vehicle health diagnostic device 10 according to the present embodiment. The process of FIG. 5 starts when a determination request for the current state of the occupant (step 108 described above) is made from the vehicle 12 and the determination unit 30 receives the determination request.

  In step 200, the determination unit 30 acquires the information in the personal database 34 corresponding to the identification information of the determination target driver from the communication unit 14 from the health / driving ability information management center 32, and proceeds to step 202.

  In step 202, the determination unit 30 derives a change in the driving ability of the driver and proceeds to step 204. For example, the determination unit 30 identifies a scene represented by each of the biological information, the driving operation information, and the peripheral information received from the vehicle 12, and the driver in a similar scene from the information stored in the personal database 34. A change in driving ability is derived by deriving and comparing the reaction rate of each.

  In step 204, the determination unit 30 determines whether or not there is a decrease in driving capability from the derived driving capability change. For example, it is determined whether or not the reaction rate has been delayed by a predetermined time or more. If the determination is affirmative, the process proceeds to step 206. If the determination is negative, the process proceeds to step 208.

  In step 206, the determination unit 30 returns a decrease in driving ability to the communication unit 14 of the vehicle 12 that is the determination request source, and ends the series of processes. As a result, on the vehicle 12 side, when the communication unit 14 receives the determination result, the determination in step 110 described above is affirmed, the driving ability is reduced and the driving ability needs to be improved, and the determination in step 114 is affirmed. The

  On the other hand, in step 208, the determination unit 30 returns to the communication unit 14 of the vehicle 12 of the determination request source that there is no change in athletic ability, and the series of processing ends. As a result, on the vehicle 12 side, when the communication unit 14 receives the determination result, the determination in step 110 described above is affirmed, there is no change in the driving capability, and improvement of the driving capability is unnecessary, and the determination in step 114 is denied. The

  As described above, in the vehicle health diagnostic apparatus 10 according to the present embodiment, the change in the driving ability of the driver is determined, and when the driving ability is lowered, training is performed by performing gaze guidance display control. Driving ability can be improved.

  In the above-described embodiment, the general vehicle 12 has been described. However, the present invention is not limited to this, and the control unit 26 enables automatic driving control in which the vehicle 12 can control autonomous driving as a vehicle capable of automatic driving. Also good. That is, in the case of a vehicle capable of automatic driving, it may be switched between automatic driving and manual driving depending on the state of the occupant, but feedback can be provided by displaying the current driving ability of the occupant during the automatic driving. it can. Further, during the automatic driving, the processing shown in FIG. 3 can be performed to perform training control such as line-of-sight guidance display control, so that the driving ability can be recovered, and a reduction in driving ability can be suppressed.

  In addition, the processing performed by the control unit 26 and the determination unit 30 in the above-described embodiment may be software processing performed by executing a program, or may be processing performed by hardware. Alternatively, the processing may be a combination of both software and hardware. In the case of software processing, the program may be stored in various storage media and distributed.

  Furthermore, the present invention is not limited to the above, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 Vehicle health diagnostic apparatus 12 Vehicle 14 Communication part 16 Biological information detection part 18 Driving operation information detection part 20 Peripheral information detection part 22 Driver identification part 24 Display part 26 Control part 28 Cloud computer 30 Determination part (external information acquisition part)
32 Health / Drivability Information Management Center 34 Personal Database

Claims (1)

An external information acquisition unit that acquires driving capability information related to the past driving capability of the passenger to be determined from an external information center;
A biological information detection unit that detects biological information of the occupant;
A driving operation information detection unit for detecting driving operation information related to the driving operation of the vehicle by the occupant;
A surrounding information detector for detecting surrounding information of the vehicle;
By the driving ability information acquired by the external information acquisition unit, the biological information detected by the biological information detection unit, the driving operation information detected by the driving operation information detection unit, and the surrounding information detection unit A determination unit for determining a change in the driving ability of the occupant based on the driving ability information derived based on the detected peripheral information;
A display unit for displaying a determination result of the determination unit;
A control unit that performs training control to improve driving ability when it is determined that the driving ability is reduced;
Medical checkup device for vehicles comprising