Notification device, notification method, and program

Abstract

To perform appropriate notification while avoiding excessive notification and an increase in throughput.SOLUTION: The communication terminal 1 functioning as a notification device includes the information acquisition unit 11 functioning as a biological information acquisition unit that acquires the biological information Db of the driver D who is a user and an external environment recognition unit that recognizes an external environment, the timer unit 18 functioning as an external environment recognition unit that recognizes another external environment, the intelligent function evaluation unit 12 that evaluates the physical condition of the driver D on the basis of the biological information Db, and the notification control unit 16 that notifies the driver D of the notification information on the basis of the evaluation result of the intelligent function evaluation unit 12. When it is detected that the physical condition of the driver D is equal to or lower than a predetermined level based on the evaluation result of the intellectual function evaluation unit 12, the notification control unit 16 recognizes the external environment of the driver D by the information acquisition unit 11 and includes predetermined information based on the external environment in notification information.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a notification device, a notification method, and a program. [Background technology]

[0002] In recent years, efforts to provide access to sustainable transportation systems that take into consideration vulnerable traffic participants have been gaining momentum. Toward this goal, efforts are being focused on research and development of preventive safety technologies to further improve traffic safety and convenience. For example, Patent Documents 1 and 2 disclose safe driving support devices that use biometric information, including imaging results, respiration, and pulse waves, and vehicle information to estimate the driver's cognitive state or provide advice or warnings to the driver. Patent Document 1 also describes acquiring environmental information representing the vehicle's traffic environment and using the vehicle information and environmental information to determine the degree of danger based on the amount the vehicle exceeds the speed limit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-200544 [Patent Document 2] Japanese Patent Application Publication No. 2023-145868 Summary of the Invention [Problem to be solved by the invention]

[0004] In preventive safety technology, it is desirable to take necessary measures according to the driver's physical condition, which affects the driver's cognitive ability and judgment ability. One of the necessary measures is to provide appropriate notifications while avoiding excessive notifications and an increase in processing load. The present invention aims to solve the above problems by providing appropriate notifications while avoiding excessive notifications and an increase in processing volume, thereby further improving traffic safety and contributing to the development of a sustainable transportation system. [Means for solving the problem]

[0005] One aspect of the present disclosure is a notification device that includes a biometric information acquisition unit that acquires a user's biometric information, an external environment recognition unit that recognizes the external environment, a health condition evaluation unit that evaluates the user's health condition based on the biometric information, and a notification control unit that notifies notification information based on the evaluation result of the health condition evaluation unit, wherein when the user's health condition is detected to be below a predetermined level based on the evaluation result of the health condition evaluation unit, the notification control unit recognizes the user's external environment using the external environment recognition unit and includes predetermined information based on the external environment in the notification information.

[0006] Another aspect of the present disclosure is a notification method executed by a notification device, comprising: a biometric information acquisition step for acquiring biometric information of a user; an external environment recognition step for recognizing the external environment; a health condition evaluation step for evaluating the health condition of the user based on the biometric information; and a notification control step for notifying notification information based on the evaluation result of the health condition evaluation step, wherein in the notification control step, when the user's health condition is detected to be below a predetermined level based on the evaluation result of the health condition evaluation step, the external environment recognition step recognizes the user's external environment, and the notification information includes predetermined information based on the external environment.

[0007] Another aspect of the present disclosure is a program in which a notification device controlled by a computer functions as a biometric information acquisition unit that acquires a user's biometric information, an external environment recognition unit that recognizes the external environment, a health condition evaluation unit that evaluates the user's health condition based on the biometric information, and a notification control unit that notifies notification information based on the evaluation result of the health condition evaluation unit, and when the user's health condition is detected to be below a predetermined level based on the evaluation result of the health condition evaluation unit, the notification control unit recognizes the user's external environment using the external environment recognition unit and includes predetermined information based on the external environment in the notification information. [Effects of the Invention]

[0008] According to the present invention, it is possible to perform appropriate notification while avoiding excessive notification and an increase in the amount of processing. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram illustrating a usage mode of a communication terminal. [Figure 2] FIG. 2 is a diagram illustrating a configuration of a communication terminal. [Figure 3] FIG. 3 is a diagram showing the relationship between the items to be evaluated, a plurality of intellectual functions, and driving advice items. [Figure 4] FIG. 4 is a flowchart illustrating a notification method executed by a communication terminal. [Figure 5] FIG. 5 is a diagram illustrating an example of the dialogue process. [Figure 6] FIG. 6 is a flowchart illustrating the notification process before driving. [Figure 7] FIG. 7 is a diagram illustrating an example of the notification information. [Figure 8] FIG. 8 is a flowchart illustrating notification processing during driving. DETAILED DESCRIPTION OF THE INVENTION

[0010] [1. Usage of communication terminal 1] As shown in FIG. 1, the communication terminal 1 is attached via a terminal holder 150 to a position in front of the driver D, who is the user, inside the vehicle 100. The communication terminal 1 is a portable device such as a smartphone, mobile phone, or tablet terminal, and can be carried by the driver D. The vehicle 100 is a four-wheeled vehicle and is an example of a target vehicle of the present disclosure. Note that the target vehicle may be a moving body other than a four-wheeled vehicle, such as an airplane, a motorcycle, or a ship.

[0011] The driver D wears a wearable device 5. The wearable device 5 is a device such as a smart watch that is worn on the wrist, arm, or head, or a wearable smart innerwear or a sensing device that is attached to the body or epidermis, and includes a vital sensor 6 and a communication unit 7. The vital sensor 6 is a sensor that continuously measures the biological information Db of the driver D at time intervals. The vital sensor 6 includes a sensor that can measure the biological information Db related to the sleep, exercise, and stress of the driver D, and includes a group of sensors that can measure, for example, the heart rate, wrist skin temperature that is an indicator of body temperature, an electrocardiogram, blood oxygen concentration, activity level, and information related to sleep.

[0012] The communication unit 7 is a unit that performs wireless communication with the communication terminal 1, and performs short-range communication in accordance with specifications such as Bluetooth (registered trademark) and UWB (Ultra Wide Band). The wearable device 5 uses the communication unit 7 to transmit measured biological information Db to the communication terminal 1. Information about the communication terminal 1, which is the communication destination, is registered in advance in the communication unit 7.

[0013] The vehicle 100 includes an ECU (Electronic Control Unit) 110 that controls the operation of each part of the vehicle 100, a communication unit 120, a navigation device 121, a front camera 130 that takes images in front of the vehicle 100, a driver monitor camera 131 that takes images of the driver D, a display 132, speakers 133a and 133b, an acceleration sensor 134, and the like. The ECU 110 communicates with the communication terminal 1 via the communication unit 120. The vehicle 100 includes a steering wheel 140, an accelerator pedal 141, a brake pedal 142, and the like as driving operation parts that the driver D operates when driving.

[0014] The communication terminal 1 can detect the behavior of the vehicle 100, which changes in response to the operation of the driving operation unit, that is, the operation of the steering wheel 140, the accelerator pedal 141, and the brake pedal 142 by the driver D, using an acceleration sensor 32 (see FIG. 2 ) built into the communication terminal 1. The notification device 2 may detect the behavior of the vehicle 100 by acquiring the detection result of the acceleration sensor 134 provided in the vehicle 100.

[0015] The communication terminal 1 notifies the user of notification information based on the biological information Db detected by the wearable device 5, etc., on a display 34 provided in the communication terminal 1. Furthermore, the communication terminal 1 has various functions that are included in a typical smartphone, such as a map display function that displays map information including the current location on the display 34, a route guidance function that provides route guidance from the current location to a destination set by the driver D, and a music playback function. Note that the communication terminal 1 may also have a function that displays notification information and map information on the display 132 of the vehicle 100.

[0016] [2. Configuration of communication terminal 1] The configuration of the communication terminal 1 will be described with reference to Fig. 2. The communication terminal 1 includes a control unit 3 having a processor 10 and a memory 20, a communication unit 30, a camera 31, an acceleration sensor 32, a GNSS (Global Navigation Satellite System) sensor 33, a display 34, a speaker 35, a microphone 36, and the like.

[0017] The communication unit 30 has a communication module that performs wireless communication with an external device. The communication unit 30 includes a communication module that performs short-range wireless communication in accordance with specifications such as Bluetooth (registered trademark) and UWB (Ultra Wide Band) between the vehicle 100 and the wearable device 5. The communication unit 30 also includes a communication module that communicates with a traffic information server 210 and a service providing server 211 via a communication network 200 such as a mobile communication network. Information about the vehicle 100 and the wearable device 5, which are the communication destinations, is registered in advance on the communication unit 30 side.

[0018] The camera 31 can capture an image of the driver D when the communication terminal 1 is attached to the terminal holder 150 (see FIG. 1). The acceleration sensor 32 detects, for example, six axes (acceleration in each of the longitudinal, lateral, and vertical directions, and angular velocity about each axis). The GNSS sensor 33 detects the current position of the communication terminal 1. When the communication terminal 1 is attached to the terminal holder 150, the position detected by the GNSS sensor 33 becomes the current position of the vehicle 100. The display 34 is visible to the driver D when the communication terminal 1 is attached to the terminal holder 150 (see FIG. 1). The display 34 is a touch panel, and the driver D can operate the communication terminal 1 by touching the display 34.

[0019] The memory 20 stores application programs 21 for the communication terminal 1, map information 22 including roads, a biometric information database 23 (hereinafter referred to as biometric information DB23) that stores biometric information Db acquired from the wearable device 5 in chronological order, and an exercise behavior information database 24 (hereinafter referred to as exercise behavior information DB24) that stores driving behavior information Dv described below in chronological order. The processor 10 is a computer that controls the communication terminal 1, and by reading and executing a program 21, functions as an information acquisition unit 11, an intellectual function evaluation unit 12, a ride detection unit 13, a dialogue unit 14, a voice evaluation unit 15, a notification control unit 16, and a vehicle control unit 17. The processor 10 also includes a timer unit 18 that measures time.

[0020] The information acquisition unit 11 acquires the biological information Db measured by the wearable device 5 using the communication unit 30, and records the acquired biological information Db in the memory 20. The memory 20 also records the measurement date and time of the biological information Db. Furthermore, the information acquisition unit 11 acquires information acquired by the camera 31, the acceleration sensor 32, the GNSS sensor 33, and the microphone 36, and records the information in the memory 20. The information acquired by the camera 31 is, for example, facial image data of the driver D, and the facial image data may be used as biometric information Db that identifies the physical condition of the driver D, etc.

[0021] The information acquired by the acceleration sensor 32 is information indicating the behavior of the vehicle 100 in response to the operation of the steering wheel 140, the accelerator pedal 141, and the brake pedal 142 by the driver D, that is, driving behavior information Dv indicating the driving behavior of the driver D. The driving behavior information Dv is continuously acquired at time intervals and recorded in the memory 20. In addition, the information acquisition unit 11 is not limited to a configuration in which it acquires driving behavior information Dv using the acceleration sensor 32 of the communication terminal 1, and may acquire driving behavior information Dv acquired by the acceleration sensor 134 of the vehicle 100 using short-range communication.

[0022] Furthermore, the information acquisition unit 11 can acquire information on the communication network 200 by using the communication unit 30. For example, the information acquisition unit 11 can acquire road traffic information Dt provided by the traffic information server 210 and various types of provided information provided by the service providing server 211. The provided information provided by the service providing server 211 includes, for example, test information (e.g., health checkup information) on the physical and cognitive functions of the driver D provided by a medical institution, advice provided by a medical institution, and information that can identify the external environment of the driver D and the vehicle 100 (weather information Dw, etc.). The test information may be used as biological information Db.

[0023] The road traffic information Dt is information including the current location of the communication terminal 1 and congestion information in the surrounding area. The road traffic information Dt may also include information other than congestion information, such as accident information, regulation information, rest areas, etc. Information on the current location detected by the GNSS sensor 33 may be used as the current location. The weather information Dw is information including the current weather and weather forecast for the current location of the communication terminal 1 and the surrounding area, and the information acquisition unit 11 can acquire time information Dtm from the clock unit 18. The time information Dtm includes not only the time but also information such as the date. The weather information Dw and the time information Dtm are examples of environmental information that indicates the external environment of the driver D and the vehicle 100.

[0024] The intellectual function evaluation unit 12 performs processing to evaluate a plurality of intellectual functions related to the physical condition of the driver D and related to the driving ability of the driver D, based on the biological information Db. More specifically, the intellectual function evaluation unit 12 has a calculation unit 12a that calculates evaluation values ​​of a plurality of intellectual functions consisting of planning ability 311, perception ability 312, attention ability 313, judgment ability 314, and operation ability 315 shown in Fig. 3, based on the biological information Db, evaluates the plurality of intellectual functions based on the calculated evaluation values, and detects whether the physical condition of the driver D is good or not based on these evaluations.

[0025] Figure 3 shows the relationship between the items to be evaluated, the multiple intellectual functions evaluated by the intellectual function evaluation unit 12 (planning ability 311, perceptual ability 312, attention ability 313, judgment ability 314, and operating ability 315), and the driving advice items (first driving advice item 321 to fifth driving advice item 325). The biological information Db obtained by the vital sensor 6 includes information that affects the sleep 304, the exercise 305, and the stress 306 shown in Fig. 3, so that the state of physiological indices consisting of the sleep 304, the exercise 305, and the stress 306 can be estimated from the biological information Db. The driving behavior information Dv includes information on the accelerator operation 301, the brake operation 302, and the steering operation 303 shown in Fig. 3, so that the state of the accelerator operation 301, the brake operation 302, and the steering operation 303 can be estimated from the driving behavior information Dv.

[0026] 3, planning ability 311 is particularly related to sleep 304, perception ability 312 is related to sleep 304, accelerator operation 301, brake operation 302, and steering operation 303. Attention ability 313 is related to sleep 304, exercise 305, stress 306, accelerator operation 301, brake operation 302, and steering operation 303, and judgment ability 314 and operation ability 315 are related to sleep 304, exercise 305, accelerator operation 301, brake operation 302, and steering operation 303.

[0027] Using these relationships, the intellectual function evaluation unit 12 scores the sleep 304, exercise 305, and stress 306 of the driver D based on the biological information Db of the driver D, acquires first physical condition information corresponding to the evaluation value for each intellectual function based on the relationships shown in Fig. 3, and compares each piece of first physical condition information with a predetermined threshold to determine whether each intellectual function is good or not. If the majority of the intellectual functions are good (three or more), the intellectual function evaluation unit 12 determines that the physical condition related to the intellectual function of the driver D (hereinafter referred to as the first physical condition as appropriate) is good, and if less than half of the intellectual functions are good (two or less), it determines that the first physical condition of the driver D is poor.

[0028] In this description, the term "physical condition" is not limited to the narrow sense, but includes information indicating at least one of physical condition and health in the broad sense. Furthermore, a known method may be applied as appropriate to the evaluation process of the first physical condition, including the calculation process of the evaluation value for each intellectual function. Furthermore, test information (e.g., health check information) of the physical functions and cognitive functions of the driver D may be obtained from the service providing server 211, and the evaluation of each intellectual function and the first physical condition may be performed based on the biological information Db including this test information. Furthermore, the intellectual functions may be changed, increased or decreased as appropriate. Furthermore, the intellectual function evaluation unit 12 evaluates the planning ability 311, perception ability 312, attention ability 313, judgment ability 314, and operation ability 315 based on the driving behavior information Dv, and can also evaluate the physical condition of the driver D by taking into consideration both this evaluation and the evaluation based on the biological information Db.

[0029] Next, the driving advice items shown in FIG. 3 will be described. The first driving advice item 321 is an item for which driving advice is suitable when the planning ability 311 or the attention ability 313 is low, and is, for example, the operating speed of the accelerator pedal 141 when starting off. The second driving advice item 322 is an item for which driving advice is suitable when the planning ability 311 or the judgment ability 314 is low, and is, for example, the operating speed of the brake pedal 142 when stopping.

[0030] The third driving advice item 323 is an item for which driving advice is suitable when the perceptual ability 312, attention ability 313, or judgment ability 314 is low, and is, for example, the operating speed of the steering wheel 140 when winding or overtaking a vehicle. The fourth driving advice item 324 is an item for which driving advice is suitable when the attention ability 313 is low, and is, for example, the distance between the vehicle and the vehicle ahead.

[0031] The fifth driving advice item 325 is an item for which driving advice is suitable when the perceptual ability 312, the judgment ability 314, or the operation ability 315 is low, and is, for example, swaying of the vehicle 100 from side to side. The manner in which these driving advice items are used will be described later.

[0032] Returning to FIG. 2, the entry detection unit 13 detects the timing when the driver D gets into the vehicle 100 (hereinafter referred to as the entry timing), thereby performing a process of detecting whether the driver D is before getting into the vehicle or is in the vehicle. The process of detecting the entry timing is not particularly limited, but for example, the entry detection unit 13 acquires image information from a camera inside the vehicle 100 (e.g., the driver monitor camera 131) or a camera provided in the vehicle 100 that captures images of the outside of the vehicle, and detects the entry timing of the driver D using image recognition technology. The entry detection unit 13 may also receive a signal from a weight sensor provided in the driver's seat from the vehicle 100, and detect the entry timing of the driver D based on the received signal.

[0033] The dialogue unit 14 performs dialogue processing to dialogue with the driver D. The dialogue processing is processing to use the speaker 133a to output dialogue audio to prompt a voice response from the driver D. This dialogue processing includes processing to collect voice information of the driver D using the microphone 36. In this embodiment, the dialogue processing is executed at the timing when the driver D gets in, or immediately before or immediately after the timing when the driver D gets in, which is detected by the boarding detection unit 13. This makes it possible to acquire voice information of the driver D at the time of boarding, immediately before boarding, or immediately before boarding, that is, to acquire voice information of the driver D immediately before driving.

[0034] The voice evaluation unit 15 performs a process of acquiring voice physical condition information related to the physical condition of the driver D by performing a voice analysis of the voice information of the driver D acquired through the dialogue processing. The content of this processing is not particularly limited, but in this embodiment, voice features are extracted and an arithmetic process is performed to calculate information indicating the vitality and mental stability of the driver D from the extracted features, thereby acquiring the voice physical condition information indicating the vitality and mental stability. Then, based on the voice physical condition information, the voice evaluation unit 15 determines whether the physical condition (appropriately referred to as the second physical condition) affected by the vitality and mental stability is good or not. The processing performed by the voice evaluation unit 15 is not limited to the above processing, and a wide range of processing can be applied to obtain information that can be used to evaluate the physical condition of the driver D from the voice of the driver D.

[0035] The notification control unit 16 generates notification information corresponding to the physical condition of the driver D based on a combination of the evaluation results of the intellectual function evaluation unit 12 and the evaluation results of the voice evaluation unit 15, and displays the generated notification information on the display 34, or emits a voice corresponding to the notification information from the speaker 133a. The vehicle control unit 17 has a control function for the vehicle 100, and more specifically, is capable of controlling the driving assistance functions of the vehicle 100 by communicating with the vehicle 100 using the communication unit 30. The driving assistance functions include an automatic braking function, a lane keeping assist function, and adaptive cruise control (ACC).

[0036] [3. Operation of communication terminal 1] The notification method executed by communication terminal 1 will be described with reference to the flowchart shown in Fig. 4. The flowchart shown in Fig. 4 is repeatedly executed at appropriate interrupt timings when application program 21 is being executed. Furthermore, when wearable device 5 is present within the short-range wireless communication area of ​​communication terminal 1, information acquisition unit 11 executes a process of acquiring biological information Db measured by wearable device 5.

[0037] 4, the notification control unit 16 of the communication terminal 1 determines whether or not the boarding detection unit 13 has detected that the driver D has boarded the vehicle (step S1A). If the boarding detection unit 13 has not detected that the driver D has boarded the vehicle (step S1A / NO), the notification control unit 16 determines whether or not a certain time has elapsed since the previous advice was displayed on the display 34 (step S2A). If the certain time has not elapsed (step S2A / NO), the notification control unit 16 proceeds to the processing of step S1A.

[0038] If the notification control unit 16 does not detect that the driver D has boarded the vehicle (step S1A / NO), and after a certain period of time has elapsed (step S2A / YES), the intellectual function evaluation unit 12 acquires first physical condition information corresponding to the evaluation values ​​for each of a plurality of intellectual functions based on the biometric information Db for a predetermined period in the biometric information DB23 recorded in the memory 20, and performs a process of evaluating the first physical condition of the driver D based on the first physical condition information (step S3A). As a result, the intellectual function evaluation unit 12 detects whether or not the majority (three or more) of the intellectual functions in the planning ability 311, perception ability 312, attention ability 313, judgment ability 314, and operation ability 315 during a predetermined period are good, and detects whether or not the first physical condition is good depending on whether or not the majority of the intellectual functions are good.

[0039] The predetermined period may be set to any appropriate period, but by setting it to a period that allows for identification of driver D's relatively long-term physical condition, for example, by setting it to a period of several hours, days, or months in the past starting from the present time, it is possible to obtain an evaluation result of driver D's relatively long-term physical condition. In addition, in step S3A, the intellectual function evaluation unit 12 may acquire first physical condition information corresponding to an evaluation value for each of a plurality of intellectual functions based on the biometric information Db for a predetermined period in the biometric information DB23 and the driving behavior information Dv for a predetermined period in the exercise behavior information DB24, and perform processing to evaluate the first physical condition of the driver D based on the first physical condition information.

[0040] Next, the notification control unit 16 performs a pre-driving notification process (step S4A) based on the evaluation result of the intellectual function evaluation unit 12. The pre-driving notification process will be described later. On the other hand, when the notification control unit 16 detects that the driver D has boarded the vehicle (step S1A / YES), it starts acquiring driving behavior information Dv, and the intellectual function evaluation unit 12 acquires first physical condition information corresponding to the evaluation value for each of multiple intellectual functions based on the biometric information Db for a predetermined period in the biometric information DB23 recorded in the memory 20, and performs a process to evaluate the first physical condition of the driver D based on the first physical condition information (step S6A).

[0041] As a result, similar to step S3A, it is detected whether or not the majority (three or more) of intellectual functions in the planning ability 311, perception ability 312, attention ability 313, judgment ability 314, and operation ability 315 are good during a predetermined period, and whether or not the first physical condition is good is detected depending on whether or not the majority of intellectual functions are good. Note that the predetermined period may be set to an appropriate period, similar to step S3A.

[0042] In addition, in step S6A, the intellectual function evaluation unit 12 may acquire first physical condition information corresponding to an evaluation value for each of a plurality of intellectual functions based on the biometric information Db for a predetermined period in the biometric information DB23 and the driving behavior information Dv for a predetermined period in the exercise behavior information DB24, and perform processing to evaluate the first physical condition of the driver D based on the first physical condition information.

[0043] Next, the notification control unit 16 performs notification processing during driving based on the evaluation result of the intellectual function evaluation unit 12 (step S7A). The notification processing during driving will be described later. After executing the notification process during driving in step S7A, the notification control unit 16 determines whether or not it has detected that the driver D has dismounted (step S8A), and if it has detected that the driver D has dismounted (step S8A / YES), it performs post-driving processing (step S9A). There are no particular limitations on the method for detecting dismounting, and it is possible to apply, for example, a method that uses the camera 130 or a weight sensor in the driver's seat.

[0044] The post-driving process of step S9A is a process of creating a hazard map that describes locations where inappropriate driving behavior occurred, based on the driving behavior information Dv acquired during driving. For example, the information acquisition unit 11 continuously acquires the driving behavior information Dv while the vehicle is traveling, and detects locations where inappropriate driving behavior, such as sudden braking or swerving to the left or right, occurred based on the driving behavior information Dv and information on the current position detected by the GNSS sensor 33, and creates a hazard map that describes the detection results. The created hazard map may be data described in the map information 22 in the memory 20, or data recorded in the memory 20 separately from the map information 22.

[0045] When a hazard map is created, the hazard map can be used while driving, for example, by the notification control unit 16 notifying the driver D of a location where inappropriate driving behavior has occurred when the driver D is driving near the location, thereby urging the driver D to drive safely. Note that the processing after driving is not limited to the processing of creating a hazard map, and any appropriate processing may be applied.

[0046] In step S6A, the notification control unit 16 may perform a dialogue process to prompt the user to give a voice response using the dialogue unit 14, acquire voice information of the driver D who responded to the voice output, and use the voice evaluation unit 15 to evaluate a second physical condition indicating the relatively short-term physical condition of the driver D based on the voice information of the driver D. Then, the physical condition of the driver D may be evaluated based on a combination of the evaluation results of the first physical condition and the second physical condition.

[0047] FIG. 5 is a diagram showing an example of the dialogue processing of the dialogue unit 14. As shown in FIG. The left side of Fig. 5 shows notification information that is emitted as sound by the dialogue unit 14 via the speaker 133a. The notification information may also be displayed on the display 34. The right side of Fig. 5 shows the content of the utterance made by the driver D. The voice uttered by the driver D is collected by the microphone 36.

[0048] The dialogue content of the dialogue unit 14 may be changed as appropriate within the scope of prompting a voice response from the driver D. In the example of Fig. 5, the dialogue content includes a message inquiring about the destination ("Where will you be driving today?"), and messages inquiring about whether audio playback is enabled and preferences for audio playback ("Do you listen to music while driving?", "Do you prefer relaxing music or uplifting music?", etc.).

[0049] Therefore, the communication terminal 1 can use known voice recognition technology to acquire information about the destination, whether audio is played, and audio preferences spoken by the driver D. The communication terminal 1 can start a route guidance process to the destination and an audio playback process by executing a process corresponding to the acquired information.

[0050] When performing route guidance processing, it is preferable to obtain road traffic information Dt provided by the traffic information server 210 and use congestion information and the like included in the road traffic information Dt to search for a recommended route.

[0051] Next, the notification process before driving will be described with reference to the flowchart shown in FIG. 6, the notification control unit 16 determines whether the first physical condition is equal to or lower than a predetermined level using the intellectual function evaluation unit 12 (step S1B). Here, the predetermined level is a threshold for determining whether the driver D is in poor physical condition, and for example, if less than half (three or more) of the intellectual functions are good, the first physical condition is determined to be equal to or lower than the predetermined level. However, this predetermined level is not limited to a threshold for determining whether the physical condition is poor in the strict sense, but may be any threshold for determining whether the user is at high risk in at least one of physical condition and driving. For example, when a driver D with two or more or one or more good intellectual functions is considered to be a user with a high risk, the first physical condition may be determined to be below a predetermined level. Also, when a driver D whose first physical condition is deteriorating, that is, a driver D whose first physical condition is gradually becoming worse, is considered to be a user with a high risk, the first physical condition may be determined to be below a predetermined level. In this way, the predetermined level may be set appropriately.

[0052] If the first physical condition exceeds a predetermined level (step S1B / NO), the notification control unit 16 performs a first notification process based on the first physical condition (step S2B). The first notification process is a process of notifying a minimum amount of notification information for users whose physical condition and driving risk are relatively low. As illustrated in FIG. 7, the notification information of the first notification process is a simple message such as, "To maintain your health, please make an effort to get regular health checks and exercise." Therefore, the driver D is unlikely to feel bothered by the message.

[0053] If the first physical condition is below a predetermined level (step S1B / YES), the notification control unit 16 acquires first environmental information consisting of weather information Dw and time information Dtm (step S3B) and performs second notification processing based on the first physical condition and the first environmental information (step S4B). The second notification process is a process for notifying information different from the first notification process, and is a process for notifying notification information for users whose physical condition and driving risk are relatively high. In the notification information of the second notification process illustrated in FIG. 7, at least a wording corresponding to the intellectual function with the lowest evaluation is entered at the position indicated by the symbol BB. Therefore, for example, if the intellectual function with the lowest evaluation is attention ability 313, the notification will say, "Your attention does not seem to be good."

[0054] 7, information obtained from weather information Dw is input at the position indicated by symbol CC, and information obtained from time information Dtm is input at the position indicated by symbol DD. Therefore, advice related to daily life such as "Rain is forecast, so watch your step. It is night, so pay attention to visibility" is notified. The above is the notification process before driving.

[0055] The notification process during driving will be described with reference to the flowchart shown in FIG. As shown in FIG. 8, the notification control unit 16 determines whether the first physical condition is equal to or lower than a predetermined level using the intellectual function evaluation unit 12 (step S1C). If the first physical condition exceeds the predetermined level (step S1C / NO), the notification control unit 16 performs a third notification process based on the first physical condition (step S2C). The third notification process is a process for notifying information different from the first notification process and the second notification process, and is a process for notifying minimal notification information for users whose physical condition and driving risk are relatively low. As exemplified in FIG. 7, the notification information of the third notification process is a simple message such as "Take care."

[0056] If the first physical condition is below a predetermined level (step S1B / YES), the notification control unit 16 determines whether a destination is set (step S3C). If a destination is not set (step S3C / NO), the notification control unit 16 acquires first environmental information consisting of weather information Dw and time information Dtm (step S4C), and performs a fourth notification process based on the first physical condition and the first environmental information (step S5C).

[0057] The fourth notification process is a process for notifying information different from the first to third notification processes, and is a process for notifying notification information for users whose physical condition and driving risk are relatively high. As illustrated in FIG. 7, in the notification information of the fourth notification process, at least a wording corresponding to the intellectual function with the lowest evaluation is entered in the position indicated by the symbol EE. Therefore, if the intellectual function with the lowest evaluation is attention ability 313, advice such as "Your attention does not seem to be good. Please drive carefully" is notified.

[0058] 7, the position indicated by the symbol BB is filled with a statement corresponding to at least the intellectual function with the lowest rating, the position indicated by the symbol CC is filled with information obtained from weather information Dw, and the position indicated by the symbol DD is filled with information obtained from time information Dtm. Therefore, for example, driving advice such as "Your attention is not good. Rain is forecast, so please drive carefully, taking care not to slip. It is night, so please drive carefully, taking care not to slip." is notified.

[0059] Furthermore, in the fourth notification process, advice may be notified using at least one driving advice item corresponding to the intellectual function with the lowest rating among the driving advice items 321 to 325 shown in Fig. 3. For example, if the intellectual function with the lowest rating is operation ability 315, the driving advice item corresponding to operation ability 315 is the fifth driving advice item 325 (side-to-side sway of vehicle 100), and therefore the notification reads, "When driving today, be careful of side-to-side sway of vehicle 100."

[0060] If a destination is not set (step S3C / NO), the notification control unit 16 acquires second environmental information consisting of weather information Dw, time information Dtm, and road traffic information Dt (step S6C), and performs fifth notification processing based on the first physical condition and the second environmental information (step S7C). The fifth notification process is a process for notifying information different from the first to fifth notification processes, and is a process for notifying notification information for users whose physical condition and driving risks are relatively high.

[0061] As shown in FIG. 7, in the notification information of the fourth notification process, the position indicated by the symbol BB is input with a statement corresponding to at least the intellectual function with the lowest rating, the position indicated by the symbol CC is input with information obtained from weather information Dw, the position indicated by the symbol DD is input with information obtained from time information Dtm, and the position indicated by the symbol EE is input with information obtained from road traffic information Dt. Therefore, for example, advice regarding driving to the destination such as "Your attention seems to be poor. Rain is forecast, so please drive carefully, taking care not to slip. It is night, so please drive carefully, paying attention to the headlights of oncoming vehicles. There is traffic congestion on the way to your destination, so we will suggest a recommended route that avoids traffic congestion" is notified.

[0062] In the fifth notification process, as in the fourth notification process, advice may be notified using at least one driving advice item corresponding to the intellectual function with the lowest rating out of the driving advice items 321 to 325 shown in FIG. For example, if the intellectual function with the lowest rating is planning ability 311, the driving advice items corresponding to planning ability 311 are the first driving advice item 321 (speed of operating accelerator pedal 141 when starting) and the second driving advice item 322 (speed of operating brake pedal 142 when stopping), so advice such as "When driving today, be careful of the speed of operating accelerator pedal 141 when starting and the speed of operating brake pedal 142 when stopping" is notified. This allows appropriate driving advice to be given according to the physical condition.

[0063] In step S7C, in addition to the fifth notification process, the notification control unit 16 performs a driving route change process for changing the driving route based on the destination and the road traffic information Dt. This driving route change process aims to change the driving route from the current location to the destination to a safer one by using road traffic information Dt. The process searches for a recommended route by appropriately using information such as congestion information, accident information, regulation information, and rest areas contained in the road traffic information Dt, and changes the driving route to the searched recommended route.

[0064] For example, the driving route change process searches for a driving route that avoids dangerous areas such as congested areas and accident-prone areas, or a driving route that stops at rest areas, thereby changing to a driving route that takes into account the intellectual function with the lowest evaluation. If the attention ability 313 of the driver D is low, the reaction speed will decrease and there is a risk that it will be difficult to respond to a person suddenly appearing on the road, so a driving route that avoids narrow roads and streets, a driving route that prioritizes wide roads, etc. may be searched for. In addition, dangerous areas, congested areas may be notified, and advice to take a rest may be given. In this way, when the physical condition of the driver D is below a predetermined level, the road traffic information Dt is acquired, and the recommended route is changed or notification information is notified based on the acquired road traffic information Dt, so that appropriate notification can be made.

[0065] On the other hand, when the physical condition of the driver D is not below a predetermined level, the driving risk can be considered low. In this case, the road traffic information Dt is not acquired, and notification information using the road traffic information Dt is not notified, so that an increase in the processing volume and excessive notifications can be avoided. In the travel route change process in step S7C, the driver D may be able to appropriately select whether to search for a travel route and / or whether to change to the searched travel route. The above is the notification process while driving.

[0066] [4. Variations of notification processing] In the above-described notification process before driving and notification process during driving, the notification information may be changed as appropriate. For example, the environmental information acquired when the driver's physical condition is detected to be below a predetermined level does not have to be limited to the weather information Dw, the time information Dtm, and the road traffic information Dt, and information indicating the external environment of at least one of the driver D and the vehicle 100 may be applied as appropriate.

[0067] In addition, if the driver's physical condition is detected to be below a predetermined level during the notification process before driving and the notification process during driving, the notification control unit 16 may use the dialogue unit 14 to output audio to prompt the driver D to respond to at least the intellectual function with the lowest rating, and may include response response information based on the user's response in the notification information. For example, a question related to the intellectual function with the lowest rating may be asked as a voice output to prompt the driver D to respond to the answer related to the intellectual function, such as a question to confirm the decline in the intellectual function. If an affirmative answer is given to the decline in the intellectual function, the notification control unit 16 may identify physiological indices to be improved based on the intellectual function (for example, sleep 304, exercise 305, and stress 306 shown in FIG. 3), and notify the driver of advice related to the identified physiological indices.

[0068] Furthermore, when the fourth notification process and the fifth notification process shown in FIG. 8 are performed, a process for changing the settings of the driving support function may be executed. The process of changing the setting of the driving assistance function is a process in which the vehicle control unit 17 changes the driving assistance function of the vehicle 100 to a predetermined setting that prioritizes safety. The predetermined setting is, for example, a setting that increases the inter-vehicle distance when adaptive cruise control is in use. Note that, after the process of changing the setting of the driving assistance function is performed, if the third notification process is performed, that is, if the physical condition of the driver D has improved, the driving assistance function may be returned to the setting before the setting change (for example, a user-set value).

[0069] When the fifth notification process is performed, a process of notifying the surroundings may be executed. The notification process to the surroundings is a process in which the notification control unit 16 uses the communication unit 30 to wirelessly communicate advice to the surroundings related to the driving of the driver D to occupants of other vehicles around the vehicle 100, family members of the driver D, and the like. For example, by wirelessly transmitting information corresponding to the advice to the surroundings to the in-vehicle system of the other vehicle or to a mobile device carried by the occupant or family member, the advice to the surroundings is audibly emitted from the in-vehicle system or the mobile device (e.g., a smartphone). In this way, if the driver D is feeling unwell, it is possible to notify those around him or her to pay attention. Note that communication with the in-vehicle system of the other vehicle or the like may be performed using vehicle-to-vehicle communication.

[0070] [5. Effects of the embodiment] As described above, the communication terminal 1 includes a biometric information acquisition unit that acquires biometric information Db of the user, i.e., the driver D, an information acquisition unit 11 that functions as an external environment recognition unit that recognizes the external environment such as weather information Dw and road traffic information Dt, a timing unit 18 that functions as an external environment recognition unit that recognizes the external environment consisting of time information Dtm, an intellectual function evaluation unit 12 that evaluates the physical condition of the driver D based on the biometric information Db, and a notification control unit 16 that notifies notification information based on the evaluation result of the intellectual function evaluation unit 12. When the physical condition of the driver D is detected to be below a predetermined level based on the evaluation result of the intellectual function evaluation unit 12, the notification control unit 16 recognizes the external environment of the driver D using the information acquisition unit 11 and includes predetermined information based on the external environment in the notification information.

[0071] According to this configuration, when driver D's physical condition is below a predetermined level, the external environment of driver D is recognized, and predetermined information based on the external environment is included in the notification information.Therefore, when driver D's physical condition is not below the predetermined level, processing to recognize driver D's external environment is not necessary, and appropriate notifications can be made while avoiding excessive notifications and an increase in processing volume. The intellectual function evaluation unit 12 can also be referred to as a physical condition evaluation unit and a first physical condition evaluation unit, and the voice evaluation unit 15 can also be referred to as a physical condition evaluation unit and a second physical condition evaluation unit.

[0072] Furthermore, the intellectual function evaluation unit 12 evaluates a plurality of intellectual functions related to the physical condition of the driver D based on the biological information Db, and the notification control unit 16 notifies the driver D of information based on the intellectual function with the lowest evaluation, and then notifies the driver D of predetermined information based on the external environment, as shown in Fig. 7. With this configuration, notification of information based on important intellectual functions related to the physical condition can be prioritized over notification of predetermined information based on environmental information, and appropriate notification can be provided.

[0073] The vehicle 100 further includes a boarding detection unit 13 that functions as a boarding detection unit that detects whether the driver D has not yet boarded the vehicle 100 or is currently boarding the vehicle, and changes the object of recognition of the external environment by the information acquisition unit 11 depending on whether the driver D has not yet boarded the vehicle as shown in FIG. 6 or is currently boarding the vehicle as shown in FIG. 8. This configuration makes it possible to provide information based on environmental information that is preferable to be notified to the user depending on whether the driver D has not yet boarded the vehicle or is currently boarding the vehicle. This also makes it possible to provide appropriate notifications.

[0074] Furthermore, the notification information includes advice related to the driver D's driving, and when the driver D is in the vehicle 100 and the driver D's destination is set, the external environment to be recognized includes road traffic information Dt. With this configuration, when the driver D is in poor health and in the vehicle, notification information that takes into account the driver's physical condition and the road traffic conditions to the destination can be provided, making it possible to provide appropriate notification.

[0075] Furthermore, the notification control unit 16 performs processing to change the driving route to one that takes into consideration the physical condition of the driver D, based on the road traffic information Dt and the physical condition of the driver D obtained from the evaluation result of the intellectual function evaluation unit 12. With this configuration, it is possible to provide a more appropriate driving route.

[0076] The intellectual function evaluation unit 12 evaluates a plurality of intellectual functions related to the physical condition of the driver D based on the biological information Db, and has a dialogue unit 14 that functions as a voice output unit that outputs voice prompting the driver D to respond to the intellectual function with the lowest evaluation when the physical condition of the driver D is detected to be below a predetermined level, and the notification control unit 16 includes response response information based on the response of the driver D in the notification information. With this configuration, more appropriate information can be notified through dialogue with the driver D.

[0077] Furthermore, if the answer of the driver D is an affirmative answer regarding the intellectual function with the lowest evaluation, the notification control unit 16 identifies a physiological index to be improved based on the intellectual function and notifies the driver of advice regarding the identified physiological index. With this configuration, it is possible to notify the driver of information to improve the driver's deteriorated intellectual function, and more appropriate information can be notified.

[0078] The processing of the information acquisition unit 11 is an example of the biometric information acquisition step and external environment recognition step of the present disclosure, the processing of the intellectual function evaluation unit 12 is an example of the physical condition evaluation step of the present disclosure, and the processing of the notification control unit 16 is an example of the notification control step of the present disclosure.

[0079] Furthermore, the notification information includes advice for those around the driver D related to the driving of the driver D, and when the third notification process is performed, the notification control unit 16 performs a process of transmitting the advice for those around the driver D to the outside using wireless communication. With this configuration, when the driver D is driving and is not feeling well, it is possible to send a notification to those around the driver D to call their attention.

[0080] Furthermore, when at least one of the second notification process and the third notification process is performed, the vehicle control unit 17 is provided which changes the driving assistance function of the vehicle 100 driven by the driver D to a predetermined setting that prioritizes safety. With this configuration, when the driver D is not in good physical condition and is currently in poor health, driving assistance that prioritizes safety, in other words, driving assistance tailored to the user who is in poor physical condition, can be provided.

[0081] 6. Other Embodiments The above embodiment is merely one embodiment of the present invention, and any modifications and applications are possible without departing from the spirit of the present invention.

[0082] For example, the configuration of the communication terminal 1 shown in Figure 2 is an example, and the configuration may be changed as appropriate. The configuration of each part shown in Figure 2 etc. can be widely applied to a configuration realized by software, a configuration realized by hardware, or a configuration realized by a combination of software and hardware. Furthermore, the division of processing units in the flowchart and the processing order are not limited to the example shown in the figure, and may be changed as appropriate.

[0083] Furthermore, although the notification device of the present invention has been described as being realized by the communication terminal 1, which is a portable device, the present invention is not limited to this and may also be realized by the vehicle 100. Furthermore, although the notification device has been described as acquiring the biometric information Db from the wearable device 5, the notification device itself may have a function to measure the biometric information Db.

[0084] Although the program 21 for realizing the notification method of the present invention has been described as being recorded on a notification device, the program 21 may be acquired from an external device via communication. The program 21 may also be recorded on a computer-readable recording medium. The recording medium may be a magnetic or optical recording medium, a semiconductor memory device, or the like.

[0085] 7. Configurations Supported by the Above Embodiments The above embodiment is a specific example of the following configuration.

[0086] (Configuration 1) A notification device comprising a biometric information acquisition unit that acquires a user's biometric information, an external environment recognition unit that recognizes the external environment, a health condition evaluation unit that evaluates the user's health condition based on the biometric information, and a notification control unit that notifies notification information based on the evaluation result of the health condition evaluation unit, wherein when the user's health condition is detected to be below a predetermined level based on the evaluation result of the health condition evaluation unit, the notification control unit recognizes the user's external environment using the external environment recognition unit and includes predetermined information based on the external environment in the notification information. According to this configuration, when the user's physical condition is below a predetermined level, the user's external environment is recognized, and predetermined information based on the external environment is included in the notification information. Therefore, when the user's physical condition is not below the predetermined level, processing to recognize the user's external environment is not required, and appropriate notifications can be made while avoiding excessive notifications and an increase in processing volume.

[0087] (Configuration 2) The notification device described in Configuration 1, wherein the physical condition evaluation unit evaluates multiple intellectual functions related to the user's physical condition based on the biometric information, and the notification control unit notifies the user of information based on the intellectual function with the lowest evaluation as the notification information, and then notifies the user of the specified information. According to this configuration, notification of information based on important intellectual functions related to physical condition can be given priority over notification of predetermined information based on environmental information, allowing appropriate notification to be provided.

[0088] (Configuration 3) A notification device as described in configuration 1 or 2, which includes a boarding detection unit that detects whether the user is before or during boarding the target vehicle, and changes the object of recognition of the external environment by the external environment recognition unit depending on whether the user is before or during boarding. According to this configuration, it is possible to provide information based on environmental information that is preferable to notify the user depending on whether the user is before or during the ride, and to make appropriate notifications.

[0089] (Configuration 4) A notification device as described in Configuration 3, wherein the notification information includes advice related to the user's driving, and when the user is in the target vehicle and the user's destination is set, the external environment of the recognition target includes road traffic information. According to this configuration, when a driver is in poor physical condition while riding, notification information that takes into consideration the driver's physical condition and road traffic conditions to the destination can be provided, making it possible to provide appropriate notification.

[0090] (Configuration 5) The notification device according to Configuration 4, wherein the notification control unit performs a process of changing the driving route to take into account the user's physical condition based on the road traffic information and the user's physical condition obtained from the evaluation result of the physical condition evaluation unit. This configuration allows for a more appropriate route to be provided.

[0091] (Configuration 6) A notification device described in any one of configurations 1 to 5, wherein the physical condition evaluation unit evaluates multiple intellectual functions related to the user's physical condition based on the biometric information, and has an audio output unit that outputs audio to prompt the user to respond to the intellectual function with the lowest evaluation when the user's physical condition is detected to be below a predetermined level, and the notification control unit includes response response information based on the user's response in the notification information. According to this configuration, more appropriate information can be notified through dialogue with the user.

[0092] (Configuration 7) The notification device described in Configuration 6, wherein the notification control unit, if the user's answer is a positive answer regarding the intellectual function with the lowest rating, identifies physiological indicators that should be improved based on the intellectual function and notifies advice regarding the identified physiological indicators. According to this configuration, it is possible to notify the user of information that will improve the user's impaired intellectual function, and more appropriate information can be notified.

[0093] (Configuration 8) A notification method executed by a notification device, comprising: a biometric information acquisition step for acquiring a user's biometric information; an external environment recognition step for recognizing the external environment; a health condition evaluation step for evaluating the user's health condition based on the biometric information; and a notification control step for notifying notification information based on the evaluation result of the health condition evaluation step, wherein in the notification control step, when the user's health condition is detected to be below a predetermined level based on the evaluation result of the health condition evaluation step, the external environment recognition step recognizes the user's external environment, and the predetermined information based on the external environment is included in the notification information. According to this configuration, it is possible to perform appropriate notifications while avoiding excessive notifications and increases in the amount of processing.

[0094] (Configuration 9) A program that causes a notification device controlled by a computer to function as a biometric information acquisition unit that acquires a user's biometric information, an external environment recognition unit that recognizes the external environment, a health condition evaluation unit that evaluates the user's health condition based on the biometric information, and a notification control unit that notifies notification information based on the evaluation result of the health condition evaluation unit, wherein the notification control unit recognizes the user's external environment using the external environment recognition unit when the user's health condition is detected to be below a predetermined level based on the evaluation result of the health condition evaluation unit, and includes predetermined information based on the external environment in the notification information. According to this configuration, it is possible to perform appropriate notifications while avoiding excessive notifications and increases in the amount of processing. [Explanation of symbols]

[0095] 1...communication terminal, 5...wearable device, 6...vital sensor, 7, 30...communication unit, 10...processor, 11...information acquisition unit, 12...intellectual function evaluation unit (biometric information acquisition unit, external environment recognition unit), 13...boarding detection unit, 14...interaction unit (voice acquisition unit), 15...health condition related index calculation unit, 16...notification control unit, 17...vehicle control unit, 18...timekeeping unit (external environment recognition unit) 20...memory, 21...program, 22...map information, 23...biometric information database, 24...exercise behavior information database, 30...communication unit, 31...camera La, 32...acceleration sensor, 33...GNSS sensor, 34...display, 35...speaker, 36...microphone, 100...vehicle (target vehicle), 110...ECU, 121...navigation device, 130...front camera, 131...driver monitor camera, 132...display, 133a, 133b...speakers, 150...terminal holder, 160...wearable device, 200...communication network, 210...traffic information server, 211...service providing server, D...driver, Db...biometric information, Dv...driving behavior information.

Claims

1. a biometric information acquisition unit that acquires biometric information of a user; an external environment recognition unit that recognizes the external environment; a physical condition evaluation unit that evaluates a physical condition of the user based on the biological information; a notification control unit that notifies notification information based on the evaluation result of the physical condition evaluation unit, When the user's physical condition is detected to be below a predetermined level based on the evaluation result of the physical condition evaluation unit, the notification control unit recognizes the external environment of the user using the external environment recognition unit, and includes predetermined information based on the external environment in the notification information. Notification device.

2. the physical condition evaluation unit evaluates a plurality of intellectual functions related to the physical condition of the user based on the biological information; The notification control unit notifies, as the notification information, information based on the intellectual function with the lowest evaluation, and then notifies the predetermined information. The notification device of claim 1 .

3. a boarding detection unit that detects whether the user is about to board or is currently boarding the target vehicle; The external environment recognition unit changes the object of recognition of the external environment depending on whether the vehicle is before boarding or during boarding. The notification device of claim 1 .

4. the notification information includes advice related to the user's driving; When the user is in the target vehicle and the destination of the user is set, the external environment of the recognition target includes road traffic information. The notification device of claim 3 .

5. The notification control unit performs a process of changing the driving route in consideration of the user's physical condition, based on the road traffic information and the user's physical condition obtained from the evaluation result of the physical condition evaluation unit. The notification device of claim 4.

6. the physical condition evaluation unit evaluates a plurality of intellectual functions related to the physical condition of the user based on the biological information; a voice output unit that outputs a voice prompting the user to give an answer related to the intellectual function with the lowest evaluation when the physical condition of the user is detected to be below a predetermined level, The notification control unit includes answer response information based on the answer of the user in the notification information. The notification device of claim 1 .

7. When the answer of the user is an affirmative answer regarding the intellectual function with the lowest evaluation, the notification control unit identifies a physiological index to be improved based on the intellectual function and notifies advice regarding the identified physiological index. The notification device of claim 6.

8. A notification method performed by a notification device, comprising: a biometric information acquisition step of acquiring biometric information of a user; an external environment recognition step of recognizing an external environment; a physical condition evaluation step of evaluating a physical condition of the user based on the biological information; a notification control step of notifying notification information based on the evaluation result of the physical condition evaluation step, In the notification control step, when the user's physical condition is detected to be below a predetermined level based on the evaluation result in the physical condition evaluation step, the external environment recognition step recognizes the external environment of the user, and predetermined information based on the external environment is included in the notification information. Notification method.

9. a computer-controlled notification device; a biometric information acquisition unit that acquires biometric information of a user; an external environment recognition unit that recognizes the external environment; a physical condition evaluation unit that evaluates a physical condition of the user based on the biological information; a notification control unit that notifies notification information based on the evaluation result of the physical condition evaluation unit; When the user's physical condition is detected to be below a predetermined level based on the evaluation result of the physical condition evaluation unit, the notification control unit recognizes the external environment of the user using the external environment recognition unit, and includes predetermined information based on the external environment in the notification information. program.

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