WO2018221364A1 - 眠気推定装置、覚醒誘導制御装置、および、覚醒誘導システム - Google Patents
眠気推定装置、覚醒誘導制御装置、および、覚醒誘導システム Download PDFInfo
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- WO2018221364A1 WO2018221364A1 PCT/JP2018/019925 JP2018019925W WO2018221364A1 WO 2018221364 A1 WO2018221364 A1 WO 2018221364A1 JP 2018019925 W JP2018019925 W JP 2018019925W WO 2018221364 A1 WO2018221364 A1 WO 2018221364A1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4806—Sleep evaluation
- A61B5/4809—Sleep detection, i.e. determining whether a subject is asleep or not
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
Definitions
- the present disclosure relates to a drowsiness estimation device, a wakefulness guidance control device, and a wakefulness guidance system.
- Patent Document 1 discloses a device that stimulates a person with heat and induces awakening of the person by controlling air conditioning.
- Patent Document 2 and Patent Document 3 disclose devices that stimulate a person by sound and control the sound to induce the person's awakening.
- Patent Document 4 discloses a device that stimulates a person with a scent by inducing a scent of the person by controlling a device that generates the scent.
- a person's sleepiness level is estimated from an image captured using a camera or the like.
- the device for inducing arousal based on the human sleepiness estimated in this way is driven in a manner corresponding to the human sleepiness.
- This disclosure is intended to provide a drowsiness estimation device and the like that can estimate a human drowsiness level with higher accuracy.
- a drowsiness estimation device includes an environment detection unit that detects a plurality of environmental states around a person and outputs environmental information indicating the detected environmental states; A calculation unit for calculating an environmental level indicating a degree of ease of sleepiness of the person in the environment according to the environmental information output by the environment detection unit; and outputting the environmental level calculated by the calculation unit. And an output unit.
- a wakefulness guidance control device includes the drowsiness estimation device described above, and a control unit that drives a wakefulness guidance unit that induces the wakefulness of the person in a mode according to the environmental level. .
- a wakefulness guidance system includes the wakefulness guidance control device described above and the wakefulness guidance unit described above.
- the drowsiness estimation device can estimate a person's drowsiness level with higher accuracy.
- FIG. 1 is a block diagram illustrating a characteristic functional configuration of the sleepiness estimation apparatus according to the embodiment.
- FIG. 2 is a diagram illustrating an example of an environment level corresponding to a feature example of environment information.
- FIG. 3 is a diagram illustrating an example of an output result for the wakefulness guidance control apparatus according to the embodiment to notify the environment level.
- FIG. 4 is a flowchart in which the drowsiness estimation apparatus according to the embodiment outputs the degree of ease of sleepiness in the surrounding environment.
- FIG. 5 is a diagram for explaining an example of a system including the awakening guidance control device according to the embodiment.
- FIG. 6 is a block diagram illustrating a characteristic functional configuration of the wakefulness guidance control apparatus according to the embodiment.
- FIG. 7 is a diagram illustrating an example of human characteristics according to sleepiness level.
- FIG. 8A is a block diagram illustrating an example of a configuration of the wake-up guidance control device according to the first modification of the embodiment.
- FIG. 8B is a block diagram illustrating an example of a configuration of the awakening guidance control device according to the first modification of the embodiment.
- FIG. 9 is a flowchart illustrating a procedure in which the awakening guidance control device according to the embodiment drives the awakening guidance unit in a manner corresponding to the environmental level.
- FIG. 10 is a flowchart illustrating a procedure in which the awakening guidance control device according to the embodiment drives the awakening guidance unit in a manner corresponding to the environmental level and the drowsiness level.
- FIG. 11 is a diagram illustrating an example of a change in sleepiness level with respect to time when the wakefulness guidance control device according to the embodiment is used.
- FIG. 12 is a flowchart illustrating a procedure in which the awakening guidance control device according to the embodiment drives the awakening guidance unit according to the control parameter.
- FIG. 13 is a flowchart illustrating another example of a procedure in the case where the wake-up guidance control device according to the embodiment drives the wake-up guide.
- FIG. 14 is a diagram illustrating another example of a change in drowsiness level with respect to time when the wakefulness guidance control apparatus according to the embodiment is used.
- FIG. 15 is a diagram for explaining a system including the awakening guidance control device according to the second modification of the embodiment.
- FIG. 12 is a flowchart illustrating a procedure in which the awakening guidance control device according to the embodiment drives the awakening guidance unit according to the control parameter.
- FIG. 13 is a flowchart illustrating another example of a procedure in the case where the wake-up guidance control
- FIG. 16 is a flowchart illustrating a procedure of an operation in which the awakening guidance control device drives the awakening guidance unit when the awakening guidance control device according to the second modification of the embodiment is used for a plurality of people.
- FIG. 17A is a diagram illustrating an example of a change in drowsiness level with respect to the awakening guidance method when the awakening guidance control device according to the second modification of the embodiment is used.
- FIG. 17B is a diagram illustrating an example of a change in sleepiness level with respect to time when the wakefulness guidance control device according to the second modification of the embodiment is used.
- a drowsiness estimation device includes an environment detection unit that detects a plurality of environmental states around a person and outputs environmental information indicating the detected environmental states; A calculation unit for calculating an environmental level indicating a degree of ease of sleepiness of the person in the environment according to the environmental information output by the environment detection unit; and outputting the environmental level calculated by the calculation unit. And an output unit.
- the sleepiness estimation apparatus the degree of ease of sleepiness in the environment depending on the environment in which the person (user) is present can be quantified as the environment level. Therefore, according to the sleepiness estimation apparatus, the user's sleepiness degree can be estimated with higher accuracy.
- the sleepiness estimation apparatus can notify the user of the degree of ease of sleepiness of the quantified environment by connecting the output unit to a device such as a display or an amplifier. Therefore, according to the sleepiness estimation device, by notifying the user of the quantified degree of ease of sleepiness of the environment as the environment level, the user confirms the environment level and takes measures to prevent sleepiness, for example. Can take.
- a wakefulness guidance control device includes the drowsiness estimation device described above, and a control unit that drives a wakefulness guidance unit that induces the wakefulness of the person in a mode according to the environmental level. .
- control unit can drive the awakening induction unit in a manner according to the environmental level. Therefore, according to the wakefulness guidance control device, the degree of sleepiness of the user can be estimated with higher accuracy, and the user's wakefulness can be effectively induced according to the environmental level.
- the wakefulness guidance control device further includes a sleepiness detection unit that detects a sleepiness level indicating the sleepiness level of the person, and the control unit detects the sleepiness detection unit When the drowsiness level is equal to or higher than the first reference value, the awakening induction unit may be driven.
- control part can control the timing which drives a wake-up induction part from a user's sleepiness level. Therefore, according to the awakening guidance control device, it is possible to guide the user's awakening at an effective timing.
- the sleepiness detection unit detects the sleepiness level of each of the plurality of people
- the control unit detects that the sleepiness level of each of the plurality of people is a second level.
- the awakening induction unit may be stopped.
- control unit can wake up a plurality of users in the same environment to a predetermined sleepiness level. That is, according to such a configuration, even in an environment where there are a plurality of users, the plurality of users can be easily awakened.
- the control unit includes the awakening induction unit only for the part of the persons. It may be driven.
- the control unit can execute the awakening induction method suitable for each user. That is, according to such a configuration, even in an environment where there are a plurality of users, the user can be awakened by the awakening induction method suitable for each user.
- the wakefulness guidance control device further includes an acquisition unit that acquires a control parameter for controlling the wakefulness induction unit, and the control unit uses the control parameter acquired by the acquisition unit.
- the awakening induction unit may be driven in a corresponding manner.
- the acquisition unit is connected to a user interface such as a touch panel to acquire information on the driving mode of the awakening guidance unit desired by the user from the user.
- a control part can drive an awakening guidance part. Therefore, according to such a configuration, the awakening induction unit can be driven in a manner desired by the user.
- control parameter may include a drive time until the control unit drives and stops the awakening induction unit.
- the control unit automatically stops the awakening induction unit when the drive time included in the control parameter has elapsed. Therefore, even if the user of the wake-up guidance control device repeatedly uses the wake-up guidance control device, it is difficult to get used to the method of inducing wake-up. In this way, it is difficult for the user to become accustomed to the awakening induction method, and the reduction of the awakening induction effect can be suppressed.
- control parameter may include a current time
- control unit may change the manner in which the wake-up guiding unit is driven according to the current time indicated by the control parameter.
- the user can be adjusted so that the user can be awakened more. Therefore, according to such a structure, the awakening induction effect for the user can be enhanced.
- control parameter may include wakefulness information indicating a wakefulness level for awakening a sleepiness level indicating the sleepiness level of the person to a predetermined sleepiness level.
- control unit can drive the awakening induction unit to induce the awakening to a predetermined drowsiness level desired by the user.
- the wake-up guidance control device is connected to a plurality of wake-up guidance sections having different wake-up guidance methods for inducing the wake-up of the person, and the control section is configured in a manner according to the environmental level. You may drive one or more awakening guidance parts in an awakening guidance part.
- the wake-up guidance control apparatus can guide the user's wake-up by a plurality of different wake-up guidance methods. Therefore, according to such a structure, it becomes difficult for a user to get used to the awakening induction method, and the reduction of the awakening induction effect can be suppressed.
- control unit may be a wakefulness induction method different from the one or more wakefulness induction units that are driven when the sleepiness level indicating the sleepiness level of the person does not become the third reference value or less for a predetermined time.
- the awakening guidance unit may be driven.
- the awakening induction method that can possibly induce the user's awakening can be further executed. Therefore, according to such a structure, it is suppressed that the induction
- a wake-up guidance system includes the wake-up guidance control device and the wake-up guidance unit.
- the awakening guidance unit is driven according to the acquired environmental level. That is, according to the awakening guidance system of the present disclosure, the user's awakening can be induced by the awakening guidance method according to the environment around the user. Therefore, according to the awakening guidance system of the present disclosure, the user's awakening can be more effectively induced as compared with a conventional device that induces a user's awakening.
- FIG. 1 is a block diagram showing a characteristic functional configuration of the sleepiness estimation apparatus according to the embodiment.
- the sleepiness estimation device 1 is a device that detects an environment around a person (user) and quantifies the degree of ease of sleepiness of the user in the detected environment.
- the drowsiness estimation apparatus 1 includes an environment detection unit 150, a calculation unit 2, and an output unit 130.
- the environment detection unit 150 detects the state of the environment around the user and outputs environment information indicating the detected state of the environment. Specifically, the environment detection unit 150 has an interface connected to the sensor 800, detects the state of the environment detected by the sensor 800, and outputs environment information indicating the detected state of the environment to the calculation unit 2. .
- the environment information is information indicating the state of the environment around the user, and includes information such as temperature, humidity, CO 2 concentration, illuminance, sound, and fragrance, for example.
- the environment information may include space information indicating a space where the user is present.
- the spatial information indicates, for example, in a car, in an office, in a school, or the like.
- the calculation unit 2 calculates the environment level based on the environment information detected by the environment detection unit 150.
- the environmental level is a quantified numerical value indicating the degree of ease of sleepiness of the user in the environment around the user. For example, when a certain environment is an environment in which the user is likely to become sleepy, the calculation unit 2 calculates the environment level high. For example, when a certain environment is an environment in which it is difficult for the user to become sleepy, the calculation unit 2 calculates the environment level low. Specifically, when the environment around the user is dim, it is considered that the environment is likely to make the user sleepy. In such a case, the calculation unit 2 acquires information indicating the brightness of the environment output from the environment detection unit 150, and calculates a high environmental level of the environment from the acquired information by a predetermined calculation method. As another specific example, when the noise in the environment around the person is large, it is considered that the environment is difficult for the user to become sleepy. In such a case, the calculation unit 2 calculates the environmental level of the environment low.
- the calculation unit 2 is realized by, for example, a CPU (Central Processing Unit) and a control program stored in a storage unit that is communicably connected to the drowsiness estimation device 1.
- Examples of the storage unit include ROM (Read Only Memory), RAM (Random Access Memory), HDD (Hard Disk Drive), SSD (Solid State Drive), and the like.
- FIG. 2 is a diagram illustrating an example of an environment level corresponding to a feature example of environment information.
- the environment detection unit 150 detects one or more of the feature examples shown in the table of FIG. 2 as the environmental state, and outputs the detected environmental state to the calculation unit 2 as environmental information.
- the ambient temperature is 18-22 ° C.
- the humidity is 50-60%
- the sound is 30 dB (decibel) or less
- the brightness is 100 lx (lux) or less.
- the calculation unit 2 calculates the environmental level as 5, for example, the environmental level is high.
- the temperature in the environment is 30 ° C.
- the humidity is 90%
- the sound is 80 dB or more
- the brightness is 2500 lx or more, it is considered that the environment is unlikely to be sleepy for the user.
- the calculation unit 2 calculates the environmental level as 1, for example, the environmental level is low.
- the calculation unit 2 calculates the environmental level of the environment around the user from the environmental information output by the environment detection unit 150.
- the relationship between the environment level and the environment feature example shown in FIG. 2 is merely an example, and the present invention is not limited to this.
- the environmental level may be classified into six levels or more, and may be classified into four levels or less.
- the environmental level calculation method may be arbitrarily set, and is not particularly limited.
- the calculation unit 2 may determine the environment level by calculating the environment information such as air temperature, brightness, and sound with a predetermined weight.
- the value of the environmental level may be set lower if the user is more likely to become sleepy. In the following description, it is assumed that the environmental level is low is a state in which the user is difficult to get sleepy.
- the output unit 130 is an interface for outputting information for notifying the user of the environmental level calculated by the calculation unit 2.
- the output unit 130 is connected to a display unit 500 that is a display device such as a display, for example, and outputs display information such as characters and pictures indicating the environmental level calculated by the calculation unit 2 to the display unit 500.
- the display unit 500 displays the acquired display information as an image.
- Examples of the display unit 500 include a monitor device configured by a liquid crystal panel, an organic EL panel, or the like.
- an information terminal having a display such as a television, a smartphone, or a tablet terminal may be used.
- FIG. 3 is a diagram illustrating an example of an output result for the sleepiness estimation apparatus 1 according to the embodiment to notify the environmental level.
- the calculation unit 2 causes the display unit 500 to output environmental level information indicating the calculated environmental level to the output unit 130. For example, an image 510 shown in FIG. 3 is displayed on the display unit 500.
- the output unit 130 may be connected to, for example, a speaker and output sound information indicating the environmental level calculated by the calculation unit 2.
- FIG. 4 is a flowchart showing a procedure by which the sleepiness estimation apparatus 1 according to the embodiment calculates the environmental level of the environment around the user.
- the environment detection unit 150 detects the state of the environment around the user (step S101).
- the environment detection unit 150 outputs environmental conditions such as brightness, volume, and temperature around the user detected by the sensor 800 to the calculation unit 2 as environment information.
- the calculation unit 2 calculates the environment level based on the environment information output by the environment detection unit 150 (step S102).
- the calculation unit 2 outputs environment level information indicating the calculated environment level to the output unit 130 (step S501).
- the display unit 500 that acquired the environment level information output by the output unit 130 displays, for example, the image 510 shown in FIG.
- the sleepiness estimation apparatus 1 includes an environment detection unit 150 that detects an environment around the user, and a calculation unit 2 that quantitatively calculates the degree of sleepiness of the environment detected by the environment detection unit 150. And an output unit 130 for outputting the result calculated by the calculation unit 2.
- the drowsiness estimation device 1 can notify the user of the environmental level quantifying the degree of ease of sleepiness in the environment around the user. Therefore, according to the sleepiness estimation apparatus 1, the user's sleepiness degree can be estimated with higher accuracy and notified to the user. The user can check the environmental level and take measures to prevent sleepiness, for example.
- FIG. 5 is a diagram for explaining an example of a system including the wakefulness guidance control device according to the embodiment.
- FIG. 6 is a block diagram illustrating a characteristic functional configuration of the wakefulness guidance control apparatus according to the embodiment.
- the awakening guidance control device 100 is a control device that is mounted on, for example, the vehicle 600 shown in FIG. 5 and guides the awakening of the user U such as the driver of the vehicle 600.
- the wakefulness guidance control device 100 includes a drowsiness estimation device 1, a drowsiness detection unit 110, a control unit 120, a storage unit 140, and an acquisition unit 160.
- the sleepiness detection unit 110 detects a sleepiness level indicating the degree of sleepiness of the user U.
- the drowsiness detection unit 110 detects the arousal level of the user U.
- the drowsiness detection unit 110 has an interface for acquiring a moving image including the user U imaged by the imaging unit 400 connected to the drowsiness detection unit 110, and detects the drowsiness level of the user U from the moving image. .
- the sleepiness detection unit 110 outputs the detected sleepiness level of the user U to the control unit 120.
- a method for detecting the sleepiness level of the user U is not particularly limited.
- the sleepiness level can be detected from moving image information of the user U's face.
- FIG. 7 is a diagram illustrating an example of the characteristics of the user U according to the sleepiness level.
- the sleepiness level is low, for example, it is determined to be 1, and the blink of the user U is slow and the blink period is short and frequently performed. If it is interrupted, the drowsiness level is high, for example, 3 is determined. That is, the user U is determined not to sleep when the blinking cycle of the user U is stable, and is determined to be sleepy when the blinking of the user U is slow and frequently performed.
- the sleepiness detection unit 110 detects the sleepiness level of the user U by analyzing the moving image including the user U acquired from the imaging unit 400. Note that the relationship between the sleepiness level, the sleepiness level, and the feature example illustrated in FIG.
- the sleepiness level may be classified into 6 levels or more, and may be classified into 4 levels or less.
- the criteria for determining the drowsiness level may be arbitrarily set and are not particularly limited.
- the value of the sleepiness level may be set lower when the user U has a higher sleepiness level. In the following description, it is assumed that the low sleepiness level is a state in which the user's sleepiness level is low.
- Examples of the imaging unit 400 include a camera using a CMOS (Complementary Metal Oxide Semiconductor) image sensor, a camera using a CCD (Charge Coupled Device) image sensor, and the like.
- CMOS Complementary Metal Oxide Semiconductor
- CCD Charge Coupled Device
- the control unit 120 drives (that is, drives) one or more of the wake-up induction units 300a to 300d that guide the user U's wake-up in a manner corresponding to the environmental level calculated by the calculation unit 2.
- the control unit 120 wakes up the user U in a manner corresponding to the environment level calculated by the calculation unit 2.
- the awakening induction units 300a to 300d may be collectively referred to as the awakening induction unit 300.
- the awakening guidance control device 100 is connected to one or a plurality of awakening guidance units 300 by wiring (not shown).
- the control unit 120 drives all the wake-up induction units 300 connected to the wake-up guidance control device 100 to wake up the user U. To induce.
- the control unit 120 drives one of a plurality of wake-up guidance units 300 connected to the wake-up guidance control device 100. Then, the user U is awakened.
- the drowsiness detection unit 110 and the control unit 120 are realized by a CPU and a control program stored in the storage unit 140, for example.
- the sleepiness detection unit 110, the control unit 120, and the calculation unit 2 may be realized by one CPU or may be realized by different CPUs.
- the awakening induction unit 300 is a device used to lower the sleepiness level of the user U.
- Examples of the awakening induction unit 300 include an acoustic device that emits sound, a light emitting device that emits light, an aroma generator that emits scent, an air conditioner that controls air conditioning such as temperature, humidity, and CO 2 concentration. That is, awake induction unit 300, sound, light, induce awakening and prompt the user U, such as by heat or humidity, lowering the like CO 2 concentration apparatus for improving the environment for trigger drowsiness of the user U is there.
- the first reference value may be set in advance, and the sleepiness level is not particularly limited.
- the first reference value is stored in advance in the storage unit 140 when the drowsiness level is 3.
- the control unit 120 drives the awakening induction unit 300 when the sleepiness level detected by the sleepiness detection unit 110 satisfies the first reference value.
- the control unit 120 stops the awakening induction unit 300.
- the control unit 120 may stop the awakening induction unit 300 when a predetermined time has elapsed after the awakening induction unit 300 is driven.
- the second reference value may be arbitrarily set in advance, and the sleepiness level is not particularly limited.
- the second reference value is stored in advance in the storage unit 140 when the drowsiness level is 1.
- the predetermined time is not particularly limited as long as an arbitrarily set time is adopted in advance.
- the predetermined time is set in advance to 5 minutes, 10 minutes, 15 minutes, or the like.
- the wakefulness guidance control apparatus 100 may include a time measuring unit (not shown) such as an RTC (Real Time Clock) in order to measure time.
- RTC Real Time Clock
- the sleepiness detection unit 110 may detect the sleepiness level of each of a plurality of users.
- the control unit 120 may stop the awakening induction unit 300 when the sleepiness level of each of the plurality of users is equal to or lower than the second reference value.
- the control unit 120 drives the awakening induction unit 300 only for the some users. Also good.
- the acquisition unit 160 is an interface that acquires control parameters for controlling the awakening induction unit 300.
- the acquisition unit 160 is connected to a user interface such as a touch panel, for example, and acquires information on the operation of the user U by the user interface. Specifically, the acquisition unit 160 acquires control parameters from the user U.
- the control parameter includes, for example, a drive time until the control unit 120 drives the awakening induction unit 300 to stop it.
- control parameter includes, for example, the current time.
- the control part 120 changes the aspect which drives the awakening induction part 300 according to the present time which a control parameter shows.
- the control parameter may include wakefulness information indicating the wakefulness level for making the sleepiness level indicating the sleepiness level of the user U to a predetermined sleepiness level.
- the awakening degree information includes stop reference information indicating the sleepiness level of the user U who stops the awakening guiding unit 300. That is, the stop reference information is the second reference value described above. For example, when the second reference value is arbitrarily determined in advance, the control unit 120 obtains the stop reference information, and when the user U reaches the sleepiness level indicated by the stop reference information, the control unit 120 The control method of the awakening induction unit 300 is changed so that 300 is stopped.
- the control part 120 may select the awakening induction
- the control unit 120 drives the awakening guidance unit 300 in the order of decreasing the power consumption.
- control unit 120 a priority of awakening method of inducing wakefulness guiding portion 300 to be driven, lighting, fragrance, conditioning (temperature and humidity control), ventilation awake induction unit for driving in the order of (CO 2 control) 300 may be selected.
- control parameter may include a mode setting when the control unit 120 drives the awakening induction unit 300.
- the mode may include, for example, an energy saving mode in which the control unit 120 does not drive an air conditioner or a ventilation fan with high power consumption as the awakening induction unit 300 and induces the user U to awaken with illumination or a scent.
- the control unit 120 drives, for example, an air conditioner that performs temperature and humidity control as the awakening induction unit 300, and at this time, the temperature is lower than when the energy saving mode is not acquired. You may drive so that it may not.
- the control unit 120 drives the ventilation fan to be ventilated as the awakening guidance unit 300, and the air volume moved by the ventilation fan at this time is reduced so as to be smaller than the case where the energy saving mode is not acquired. May be driven.
- the mode when the control unit 120 drives the awakening guidance unit 300 may include the awakening priority mode in which all the awakening guidance units 300 connected to the awakening guidance control device 100 are driven.
- the mode when the control unit 120 drives the awakening induction unit 300 includes other awakening induction methods without changing the color temperature in the illumination light emitted by the LED (Light Emitting Diode) illumination which is an example of the awakening induction unit 300.
- the sleep mode that drives the awakening guiding unit 300 that executes the above may be included.
- the control unit 120 does not make the color temperature of the illumination light emitted by the wake-up guide unit 300 so blue (that is, lowers the color temperature than when the sleep mode is not acquired). May be controlled.
- control unit 120 drives or stops the awakening induction unit 300 in a manner according to such control parameters acquired by the acquisition unit 160.
- the control unit 120 replaces one or more wake-up guidance units 300 in the plurality of wake-up guidance units 300 with the wake-up guidance unit 300. Drive every. In this case, the control unit 120 may drive the plurality of awakening guidance units 300 in order for each awakening guidance unit 300, or may select and drive them randomly. Further, the control unit 120 may drive a plurality of awakening induction units 300 that are different from one or more awakening induction units 300 driven last time. Further, for example, the control unit 120 may select and drive one or more awakening induction units 300 among the plurality of awakening induction units 300 according to the current time.
- the control unit 120 may select and drive one or more awakening induction units 300 among the plurality of awakening induction units 300 according to the season.
- the awakening guidance control apparatus 100 may include a storage unit 140 that stores, for each awakening guidance unit 300, a reduction amount (change amount) of the sleepiness level of the user U with respect to a predetermined time.
- the control unit 120 may drive one or more wakefulness induction units 300 including the wakefulness induction unit 300 in which the amount of decrease in the sleepiness level of the user U with respect to the predetermined time stored in the storage unit 140 is the largest.
- control unit 120 includes one or more awakening induction units 300 including the awakening induction unit 300 in which the amount of change in the sleepiness level of the user U with respect to the predetermined time stored in the storage unit 140 is the largest in the direction in which the user U is awakened. May be driven.
- the control unit 120 may drive the awakening induction unit 300 different from the one or more awakening induction units 300 that are driven.
- the third reference value is set to a value smaller than the first reference value and larger than the second reference value.
- the control unit 120 drives the wakefulness guiding unit to be driven if the drowsiness level of the user U is not less than or equal to the third reference value after a predetermined time has elapsed after driving the wakefulness guiding unit 300.
- Driving the awakening induction unit 300 different from 300 causes the user U to be awakened.
- the control unit 120 may stop the driven awakening guidance unit 300 or may continue driving it.
- the third reference value may be set to the same value as the first reference value or the second reference value.
- the storage unit 140 is a storage device in which control programs executed by the drowsiness detection unit 110, the control unit 120, and the calculation unit 2 are stored.
- the storage unit 140 is, for example, a ROM, RAM, HDD, SSD, or the like.
- the configuration of the wakefulness guidance control device 100 shown in FIG. 6 is for illustrating the present disclosure specifically, and the wakefulness guidance control device 100 according to the present disclosure has the configuration shown in FIG. It is not necessary to have everything. In other words, the awakening guidance control apparatus 100 according to the present disclosure only needs to have a configuration that can realize the effects of the present disclosure.
- FIG. 8A is a block diagram illustrating an example of a configuration of the wakefulness guidance control device 100 according to the first modification of the embodiment of the present disclosure.
- the wakefulness guidance control device 100 includes a drowsiness estimation device 1 and a control unit 120.
- Each processing unit performs the same process as the processing unit having the same reference numeral shown in FIG.
- the drowsiness estimation apparatus 1 calculates the drowsiness level in the calculation unit 2 from the environmental state detected by the environment detection unit 150 based on the output detected by the sensor 800.
- the calculation is not limited to this form.
- the drowsiness detection unit 110 may calculate the drowsiness level based on the state of a person (not shown).
- the sleepiness detection unit 110 may calculate the human sleepiness level based on the blinking state of the user U taken by the imaging unit 400. By doing so, the sleepiness detection unit 110 can estimate (detect) the sleepiness level of the user U with higher accuracy.
- the awakening guidance control apparatus 100 can execute an operation according to a flowchart as shown in FIG.
- FIG. 9 is a flowchart illustrating a procedure in which the awakening guidance control apparatus 100 according to the embodiment drives the awakening guidance unit 300 in a manner corresponding to the environmental level.
- the environment detection unit 150 detects the state of the environment around the user U (step S101).
- the environment detection unit 150 outputs environmental conditions such as brightness, volume, and temperature around the user U detected by the sensor 800 to the control unit 120 as environment information.
- the calculation unit 2 calculates the environment level based on the environment information output by the environment detection unit 150 (step S102).
- control unit 120 drives the awakening induction unit 300 in a manner corresponding to the environmental level calculated by the calculation unit 2 (step S105).
- control unit 120 drives the awakening induction unit 300 in a manner according to the environmental level calculated by the calculation unit 2.
- the awakening of the user U can be induced by the awakening guidance method according to the environment around the user U. Therefore, according to the awakening guidance control device 100 of the present disclosure, it is possible to guide the user U awakening more effectively than a conventional device that induces the user U awakening.
- FIG. 10 is a flowchart illustrating a procedure in which the awakening guidance control apparatus 100 according to the embodiment drives the awakening guidance unit 300 in a manner corresponding to the environmental level and the drowsiness level.
- the environment detection unit 150 detects the state of the environment around the user U (step S101).
- the environment detection unit 150 outputs environmental conditions such as brightness, volume, and temperature around the user U detected by the sensor 800 to the control unit 120 as environment information.
- the calculation unit 2 calculates the environment level based on the environment information output by the environment detection unit 150 (step S102).
- the sleepiness detection unit 110 detects the sleepiness level of the user U (step S103). For example, the drowsiness detection unit 110 acquires the moving image captured by the imaging unit 400 and analyzes the acquired moving image to detect the sleepiness level of the user U.
- control unit 120 determines whether or not the drowsiness level detected by the drowsiness detection unit 110 is equal to or higher than the first reference value (step S104). When the control unit 120 determines that the sleepiness level is not equal to or higher than the first reference value (No in Step S104), the sleepiness detection unit 110 and the control unit 120 continue to execute the operations of Step S103 and Step S104.
- control unit 120 determines that the drowsiness level is equal to or higher than the first reference value (Yes in step S104)
- the control unit 120 drives the awakening induction unit 300 in a manner corresponding to the environmental level calculated by the calculation unit 2 ( Step S105).
- FIG. 11 is a diagram illustrating an example of a change in sleepiness level with respect to time when the wakefulness guidance control apparatus 100 according to the embodiment is used.
- FIG. 11 is a graph illustrating an example of a change in the sleepiness level of the user U when the control unit 120 operates the wakefulness induction unit 300 in the flowchart illustrated in FIG. 10.
- the horizontal axis of the graph shown in FIG. 6 is time, and shows a sleepiness level.
- the sleepiness level of the user U increases as time elapses. It is assumed that the sleepiness level of the user U reaches 3 at time t1.
- the control unit 120 drives the awakening induction unit 300 (step S105 shown in FIG. 10). Further, as time elapses, the sleepiness level of the user U gradually decreases. At time t2, the control unit 120 stops the awakening induction unit 300 because the sleepiness level of the user U has reached the second reference value.
- the awakening guidance control device 100 detects the state of the environment around the user U, outputs the environment information indicating the detected environment state, and the sleepiness indicating the degree of sleepiness of the user U.
- the drowsiness detection part 110 which detects a level, and the control part 120 are provided.
- the calculation unit 2 calculates an environment level indicating the degree of ease of sleepiness of the user U in the environment according to the environment information output by the environment detection unit 150.
- the control unit 120 drives the awakening induction unit 300 in a manner corresponding to the environmental level calculated by the calculation unit 2.
- the control unit 120 drives the awakening induction unit 300 according to the environmental level calculated by the calculation unit 2. That is, according to the awakening guidance control device 100 of the present disclosure, the awakening of the user U can be induced by the awakening guidance method according to the environment around the user U. Therefore, according to the awakening guidance control device 100 of the present disclosure, it is possible to guide the user U awakening more effectively than a conventional device that induces the user U awakening.
- the present disclosure may be configured as a system including the awakening guidance control device 100 and one or a plurality of awakening guidance units 300.
- the wakefulness guidance system 200 according to the present disclosure includes the wakefulness guidance control device 100 and the wakefulness guidance unit 300.
- the awakening guidance unit 300 is driven according to the calculated environmental level. That is, according to the awakening guidance system 200 of the present disclosure, the awakening of the user U can be induced by the awakening guidance method according to the environment around the user U. Therefore, according to the awakening guidance system 200 of the present disclosure, it is possible to induce the user U awakening more effectively as compared to the conventional device that induces the user U awakening.
- control unit 120 may drive the awakening induction unit 300 in a manner corresponding to the control parameter acquired by the acquisition unit 160.
- FIG. 12 is a flowchart illustrating a procedure in which the awakening guidance control device 100 according to the embodiment drives the awakening guidance unit 300 according to the control parameter.
- the acquisition unit 160 acquires control parameters (step S301).
- the acquisition unit 160 is a communication interface, and acquires control parameters from a smartphone, a personal computer, or the like operated by a user U connected to be communicable by wire or wireless.
- the awakening guidance system 200 may include an operation unit such as a touch panel operated by the user.
- the operation unit is communicably connected to the acquisition unit 160 by wire or wireless.
- the user U operates the operation unit and inputs control parameters.
- the acquisition unit 160 acquires control parameters input from the operation unit.
- the environment detection unit 150, the calculation unit 2, the drowsiness detection unit 110, and the control unit 120 execute the same operations as in steps S101 to S104 shown in FIG.
- step S302 when the control unit 120 determines that the drowsiness level is equal to or higher than the first reference value (Yes in step S104), the aspect according to the control parameter acquired by the acquisition unit 160 and the environmental level calculated by the calculation unit 2 Then, the awakening induction unit is driven (step S302).
- control unit 120 drives and stops the awakening induction unit 300 with the drive time.
- control unit 120 changes the manner in which the wake-up guiding unit 300 is driven according to the current time indicated by the control parameter.
- the control unit 120 may drive the awakening induction unit 300 to further encourage the user U to awaken. If the awakening induction unit 300 is a device that emits sound, the control unit 120 may drive the volume to be larger than that at other times. When the awakening induction unit 300 includes a plurality of awakening induction units 300, the control unit 120 may drive all the awakening induction units 300. Further, for example, if the current time is night, the control unit 120 may drive the awakening induction unit 300 so as not to induce the user U too much. If the awakening induction unit 300 is a device that emits light, the control unit 120 may drive the light amount to be smaller than that at other times.
- control parameter may include wakefulness information indicating a wakefulness level for awakening a sleepiness level indicating the sleepiness level of the user U to a predetermined sleepiness level.
- wakefulness information includes stop reference information indicating the sleepiness level of the user U who stops the wakefulness guiding unit 300
- the control unit 120 does not have the stop reference information even if the second reference value is arbitrarily determined in advance.
- the control method of the awakening induction unit 300 is changed so that the awakening induction unit 300 is stopped.
- control unit 120 may select the awakening guidance unit 300 to be driven according to the awakening level information.
- control parameter may include a mode setting when the control unit 120 drives the awakening induction unit 300.
- mode as described above, the energy saving mode, the awakening priority mode, the pleasant sleep mode, and the like are exemplified.
- an instruction of the wake-up guidance method may be included as a control parameter.
- the control unit 120 drives the awakening guidance unit 300 that can execute the awakening guidance method indicated by the instruction.
- the awakening guidance control apparatus 100 may include the acquisition unit 160 that acquires the control parameters for controlling the awakening guidance unit 300.
- the control unit 120 may drive the awakening induction unit 300 in a manner corresponding to the control parameter acquired by the acquisition unit 160.
- the acquisition unit 160 may acquire information on the driving mode of the awakening guidance unit 300 desired by the user U from the user U by being connected to a user interface such as a touch panel.
- the control unit 120 can drive the awakening induction unit 300 in a manner corresponding to the information acquired by the acquisition unit 160. Therefore, according to such a configuration, the awakening induction unit 300 can be driven in a manner desired by the user U.
- control parameter may include a drive time until the control unit 120 drives the awakening induction unit 300 to stop it.
- the control unit 120 automatically stops the awakening induction unit when the drive time included in the control parameter has elapsed. Therefore, even if the user U repeatedly uses the awakening guidance unit 300 connected to the awakening guidance control device 100, it becomes difficult to get used to the method of inducing awakening performed by the awakening guidance unit 300. That is, according to such a configuration, it is difficult to cause the user U to get used to the awakening guidance method, and a reduction in the awakening guidance effect can be suppressed.
- the current time may be included in the control parameter.
- the control unit 120 may change the manner in which the awakening induction unit 300 is driven according to the current time indicated by the control parameter.
- the user U can be adjusted so that the user U can be awakened more. Therefore, according to such a configuration, the awakening induction effect for the user U can be enhanced.
- control parameter may include wakefulness level information indicating a wakefulness level for awakening a sleepiness level indicating the sleepiness level of the user U to a predetermined sleepiness level.
- the wakefulness level information may include stop reference information indicating the sleepiness level of the user U who stops the wakefulness guiding unit 300.
- control unit 120 can drive the awakening induction unit 300 to induce the awakening to a predetermined drowsiness level desired by the user U.
- the wake-up guidance control device 100 may be connected to a plurality of wake-up guidance sections 300 having different wake-up guidance methods for inducing the user U's wake-up.
- the wake-up guidance system 200 may include a plurality of wake-up guidance sections 300 with different wake-up guidance methods for guiding the user U's wake-up.
- the control unit 120 is one or more of the awakening induction units 300 among the plurality of awakening induction units 300 in a manner according to the environmental level. Drive.
- the wake-up guidance control apparatus 100 can guide the user U's wake-up by a plurality of different wake-up guidance methods. Therefore, according to such a structure, since the user U becomes difficult to get used to the awakening induction method, a reduction in the awakening induction effect on the user U can be suppressed.
- the control unit 120 may randomly select the awakening guidance unit 300 to be driven, for example.
- the control unit 120 may select the awakening guidance unit 300 to be driven according to the control parameter acquired by the acquisition unit 160.
- control unit 120 may select one or a plurality of wake-up induction units 300 to be driven from among the plurality of wake-up induction units 300 according to the attribute of the user U, and drive the selected wake-up induction unit 300.
- the attribute of the user U is information such as the age, sex, and physique of the user U.
- the method by which the control unit 120 estimates the attribute of the user U is not particularly limited.
- the control unit 120 may estimate the attribute of the user U from the image captured by the imaging unit 400.
- the acquisition unit 160 may acquire attribute information related to the attribute of the user U as a control parameter.
- the control parameter may include information such as temperature, music, and fragrance desired by the user U.
- the control unit 120 may select the awakening guidance unit 300 to be driven from the estimated and / or acquired attributes of the user U. By doing so, the control unit 120 can drive the awakening induction unit 300 that is estimated to have a higher awakening induction effect on the user U.
- control unit 120 is different from the driving awakening guidance unit 300 if the user's U drowsiness level is not less than or equal to the third reference value after a predetermined time has elapsed since the driving of the awakening guidance unit 300.
- the awakening of the user U may be induced by driving the awakening induction unit 300.
- FIG. 13 is a flowchart illustrating another example of a procedure when the wakefulness guidance control apparatus 100 according to the embodiment drives the wakefulness guidance unit 300.
- the environment detection unit 150, the calculation unit 2, the drowsiness detection unit 110, and the control unit 120 execute similar operations from step S101 to step S105 shown in FIG.
- control unit 120 determines whether or not the sleepiness level of the user U detected by the sleepiness detection unit 110 is equal to or lower than the second reference value (step S201).
- control unit 120 determines that the sleepiness level of the user U is equal to or lower than the second reference value (Yes in step S201), the control unit 120 stops the awakening induction unit 300.
- the control unit 120 determines whether or not the sleepiness level of the user U is less than or equal to the third reference value (Ste S203).
- Step S203 When determining that the sleepiness level of the user U is equal to or lower than the third reference value (Yes in Step S203), the control unit 120 returns to Step S201 and determines whether or not the sleepiness level of the user is equal to or lower than the second reference value. judge.
- the control unit 120 determines whether or not a predetermined time arbitrarily determined in advance has elapsed (Step S204). ). For example, the control unit 120 may acquire whether or not a predetermined time has elapsed from the RTC when the awakening guidance control device 100 includes a timekeeping unit such as an RTC.
- control unit 120 When it is determined that the predetermined time has not elapsed (No in step S204), the control unit 120 returns to step S201 and determines whether or not the user's sleepiness level is equal to or lower than the second reference value.
- Step S204 when it is determined that the predetermined time has elapsed (Yes in Step S204), the control unit 120 drives the wake-up induction unit 300 of the wake-up induction method different from the wake-up induction unit 300 being driven (Step S205).
- the control unit 120 drives the awakening guidance unit 300 of the awakening guidance method different from the awakening guidance unit 300 being driven, and then returns to step S201 again to determine whether the sleepiness level of the user U is equal to or lower than the second reference value. Continue to determine whether.
- FIG. 14 is a diagram illustrating another example of a change in sleepiness level with respect to time when the awakening guidance control apparatus 100 according to the embodiment is used. That is, FIG. 14 is a graph showing an example of a change in the sleepiness level of the user U when the awakening guidance system 200 is operated in the flowchart shown in FIG. The horizontal axis of the graph shown in FIG. 14 is time, and the vertical axis indicates the sleepiness level of the user U.
- the sleepiness level of the user U increases as time elapses. It is assumed that the sleepiness level of the user U reaches 3 at time t3.
- the control unit 120 drives the awakening induction unit 300 (step S105 shown in FIG. 13).
- the control unit 120 drives the awakening induction unit 300 of a different awakening induction method from the awakening induction unit 300 being driven (step S205 shown in FIG. 13). That is, in FIG. 14, the predetermined time is the time from time t3 to time t4.
- the control unit 120 stops the awakening induction unit 300.
- the control unit 120 drives the one or more awakening induction units 300 to be driven and the awakening induction unit 300 having a different awakening induction method. .
- FIG. 15 is a diagram for explaining a system including the wakefulness guidance control device 100 according to the second modification of the embodiment.
- the awakening guidance control device 100 and the awakening guidance system 200 are mounted on the vehicle 600.
- the environment in which the awakening guidance control device 100 and the awakening guidance system 200 are used is not limited to a vehicle.
- the awakening guidance control device 100 and the awakening guidance system 200 may be applied to a room such as an office.
- the awakening guidance control apparatus 100 and the awakening guidance system 200 according to the present disclosure are also applied when there are a plurality of users in a certain environment.
- FIG. 15 shows a case where two users U1 and U2 are in the room 700.
- the awakening guidance control apparatus 100 is disposed in a room 700.
- the wake-up guidance control device 100 is connected to a plurality of wake-up guidance sections 300e to 300j having different wake-up guidance methods by wiring (not shown).
- the awakening induction units 300e to 300i are similar to the awakening induction unit 300 (wakefulness induction units 300a to 300d), such as an acoustic device that emits sound, a light emitting device that emits light, an aroma generator that emits scent, temperature, humidity, An air conditioner for controlling air conditioning such as CO 2 concentration is exemplified.
- the awakening induction unit 300e to 300i stimulates the users U1 and U2 by sound, light, heat, or the like, or induces awakening, or induces the drowsiness of the users U1 and U2 by reducing humidity, CO 2 concentration, or the like. It is a device that improves the environment.
- the awakening guidance control device 100 is connected to individual awakening guidance units (awakening guidance units) 301a to 301d that can individually induce the user U1 and the user U2 by wiring (not shown).
- the sleepiness detection unit 110 detects the sleepiness level of each user.
- the control unit 120 sets the individual wake-up guidance units (wake-up guidance units) 301a to 301d, respectively. Drive for users.
- the individual wake-inducing units 301a to 301d are also equipped with an acoustic device that emits sound, a light-emitting device that emits light, an aroma generator that emits scent, air conditioning such as temperature, humidity, and CO 2 concentration, similarly to the wake-up guiding units 300e to 300i.
- An air conditioner to be controlled is exemplified.
- individual awakening induction units 301a and 301b that control air conditioning by air blowing that easily induces awakening for each user, individual awakening induction units 301c and 301d by light, and the like are employed as the individual awakening induction unit.
- FIG. 16 shows that when the wakefulness guidance control device 100 according to the second modification of the embodiment is used for a plurality of users, the wakefulness guidance control device 100 uses the wakeup guidance units 300e to 300i and the individual wakefulness guidance units 301a to 301d. It is a flowchart which shows the procedure of the operation
- the environment detection unit 150 detects the state of the environment around the users U1 and U2 (step S101).
- the environment detection unit 150 outputs environmental conditions such as brightness, volume, and temperature around the users U1 and U2 detected by the sensor 800 to the calculation unit 2 as environment information.
- the calculation unit 2 calculates the environment level based on the environment information output by the environment detection unit 150 (step S102).
- the calculation unit 2 outputs information including the calculated environment level to the control unit 120.
- the sleepiness detection unit 110 detects the sleepiness levels of a plurality of users (step S103a). For example, the drowsiness detection unit 110 acquires the moving image captured by the imaging unit 400 and analyzes the acquired moving image to detect the sleepiness level of each of the users U1 and U2.
- control unit 120 determines whether all the sleepiness levels detected by the sleepiness detection unit 110 are equal to or higher than the first reference value (step S104a). That is, the control unit 120 determines whether or not the sleepiness level detected by the sleepiness detection unit 110 is equal to or higher than the first reference value for both the users U1 and U2.
- control unit 120 determines that the sleepiness level of all members is not equal to or higher than the first reference value (No in step S104a), the sleepiness detection unit 110 and the control unit 120 continue to execute the operations of step S103a and step S104a.
- the control unit 120 determines that the sleepiness level of all members is equal to or higher than the first reference value (Yes in step S104a)
- the control unit 120 induces wakefulness to all members in a manner according to the environmental level calculated by the calculation unit 2.
- the control unit 120 drives the awakening induction unit 300g, which is a ventilation fan, to induce the awakening of both the users U1 and U2 by reducing the CO 2 concentration in the entire room 700.
- the control unit 120 drives the awakening induction unit 300j that is an aroma generator to control the scent of the entire room 700, thereby inducing the awakening of both the users U1 and U2.
- control unit 120 determines whether or not all the sleepiness levels detected by the sleepiness detection unit 110 are equal to or lower than the second reference value (step S401). That is, the control unit 120 determines whether or not the sleepiness level detected by the sleepiness detection unit 110 is less than or equal to the second reference value for both the users U1 and U2.
- control unit 120 determines that the sleepiness level of all the members is equal to or lower than the second reference value (Yes in Step S401), the control unit 120 stops the driving awakening induction unit (Step S402).
- the control unit 120 determines that the sleepiness level of all the members is not equal to or lower than the second reference value (No in step S401), the sleepiness level of only some users among the users detected by the sleepiness detection unit 110 is the first. It is determined whether or not it is greater than 2 reference values (step S403). That is, the control unit 120 determines whether the sleepiness level of both the users U1 and U2 detected by the sleepiness detection unit 110 is greater than the second reference value, or the sleepiness level of one of the users U1 and U2 is the first. 2 Determine whether it is greater than the reference value.
- the control unit 120 drives the awakening induction unit in a different manner (step S404).
- the control unit 120 drives a wake-up guide unit of a wake-up guide method different from the driven wake-up guide unit.
- the awakening induction unit 300j may generate a scent more strongly, thereby facilitating the induction of the awakening of both the users U1 and U2. .
- it returns to step S401 and the control part 120 determines whether the sleepiness level of all is below a 2nd reference value.
- the control unit 120 determines that the sleepiness level is the second reference.
- the awakening induction unit is driven only for some users larger than the value. For example, when the sleepiness level of the user U1 is greater than the second reference value and the sleepiness level of the user U2 is equal to or lower than the second reference value, the control unit 120 performs air conditioning so as to induce only the user U1 to wake up.
- the individual awakening induction unit 301a that controls the above is driven.
- step S405 when driving the individual awakening guidance unit, the control unit 120 may or may not stop the awakening guidance unit that has been driven.
- step S104a the control unit 120 determines whether the drowsiness level detected by the drowsiness detection unit 110 is all equal to or higher than the first reference value, but is particularly limited to the fact that all are equal to or higher than the first reference value. Is not to be done.
- the control unit 120 may determine whether or not the sleepiness level detected by the sleepiness detection unit 110 is equal to or higher than the first reference value for some users. In this case, when the control unit 120 determines that the sleepiness level of the some users is equal to or higher than the first reference value, the control unit 120 awakens all the members in a manner according to the environment level calculated by the calculation unit 2.
- the guiding unit may be driven.
- the control unit 120 may drive the awakening guide unit when the sleepiness level of the four users is equal to or higher than the first reference value.
- the condition for the control unit 120 to drive the individual awakening guidance unit may be changed.
- the control unit 120 in driving the wakefulness guiding unit when the sleepiness level of the four users is equal to or higher than the first reference value, in step S403
- the individual awakening induction unit may be driven for the three users. In this way, in the flowchart shown in FIG.
- control unit 120 drives the wakefulness induction unit or the individual wakefulness induction unit so that the drowsiness level is equal to or higher than the first reference value or the second reference value.
- the conditions regarding the number of users for driving the unit or the individual awakening guidance unit may be arbitrarily set.
- FIG. 17A is a diagram illustrating an example of changes in drowsiness levels of the users U1 and U2 with respect to the awakening guidance method when the awakening guidance control device 100 according to the second modification of the embodiment is used.
- FIG. 17B is a diagram illustrating an example of changes in drowsiness levels of the users U1 and U2 with respect to time when the wakefulness guidance control apparatus 100 according to the second modification of the embodiment is used.
- 17A and 17B are graphs showing an example of changes in the drowsiness levels of the users U1 and U2 when the control unit 120 operates the awakening induction unit and the individual awakening induction unit in the flowchart shown in FIG. .
- FIG. 17A is a diagram illustrating an example of changes in drowsiness levels of the users U1 and U2 with respect to the awakening guidance method when the awakening guidance control device 100 according to the second modification of the embodiment is used.
- FIG. 17B is a diagram illustrating an example of changes in drowsiness levels of the users U1 and U
- the solid line indicates the time change of the sleepiness level of the user U1
- the broken line indicates the time change of the sleepiness level of the user U2.
- the horizontal axis of the graph shown in FIG. 17B is time
- the vertical axis indicates sleepiness level.
- the sleepiness level of the users U1 and U2 increases as time elapses. Assume that the drowsiness levels of both the users U1 and U2 reach 2 at time t6 (the state without control shown in FIG. 17A).
- the control unit 120 controls the entire room 700 to drive both the user U1 and U2 wake-up induction units (step S105a shown in FIG. 16).
- the control unit 120 drives the awakening induction unit 300g, which is a ventilation fan, to induce the awakening of both the users U1 and U2 by reducing the CO 2 concentration in the entire room 700.
- the sleepiness level of the users U1 and U2 gradually decreases.
- the sleepiness level of the user U2 has reached 1, but the sleepiness level of the user U2 has not yet reached 1 (the CO 2 control ON state in FIG. 17A).
- the control unit 120 controls the individual awakening induction unit to induce the awakening of only the user U1 (step S405a shown in FIG. 16).
- the control unit 120 drives the individual awakening induction unit 301a that controls the air conditioning so as to induce the awakening of only the user U1.
- the control unit 120 stops the individual awakening guidance unit (the state of the individual temperature control in FIG. 17A).
- the sleepiness detection unit 110 may detect the sleepiness level of each of the plurality of users.
- the control unit 120 stops the awakening induction unit when the sleepiness level of each of the plurality of users is equal to or lower than the second reference value.
- control unit 120 can wake up a plurality of users in the same environment to a predetermined sleepiness level. That is, according to such a configuration, it is possible to easily awaken many users even in an environment where a plurality of users exist.
- the control unit 120 further drives the awakening induction unit only for the some users.
- the method for individually driving the awakening guidance unit is not particularly limited. For example, when the sleepiness level of only the user U1 shown in FIG. 15 is larger than the second reference value, the control unit 120 can irradiate only the user U1 with the individual awakening guidance unit 301a that can blow only the user U1. The individual awakening induction unit 301c is driven.
- the control unit 120 provides each user with a wake-up guidance method suitable for each user even when a plurality of users in the same environment cannot be woken up to a predetermined sleepiness level by the same wake-up guide method. Can be executed. That is, according to such a configuration, even in an environment where there are a plurality of users, the user can be awakened by the awakening induction method suitable for each user.
- the control unit determines whether the drowsiness level detected by the drowsiness detection unit is equal to or higher than the first reference value, but is not limited thereto.
- the sleepiness detection unit may determine whether or not the detected sleepiness level is equal to or higher than a first reference value.
- the sleepiness detection unit outputs the determination result of the sleepiness level to the control unit.
- the control unit drives the awakening induction unit based on the determination result output by the sleepiness detection unit.
- control subject of the control executed by the components such as the environment detection unit, the calculation unit, the control unit, and the drowsiness detection unit described above is merely an example, and is not limited.
- the present disclosure can be realized not only as a drowsiness estimation device or a wakefulness guidance control device, but also includes a program including steps performed by each component of the sleepiness estimation device or the wakefulness guidance control device, and the program recorded therein It can also be realized as a recording medium such as a computer-readable DVD (Digital Versatile Disc).
- the program may be recorded in advance on a recording medium, or may be supplied to the recording medium via a wide area communication network including the Internet.
- the comprehensive or specific aspect described above may be realized by a system, an apparatus, an integrated circuit, a computer program, or a computer-readable recording medium, and any of the system, the apparatus, the integrated circuit, the computer program, and the recording medium It may be realized by various combinations.
- the present disclosure can quantitatively calculate the degree of human sleepiness in the environment as an environmental level from the environment around the person, and output the calculated result to prompt the person to improve the environment.
- used for sleepiness estimation device used as a wakefulness guidance control device and a wakefulness guidance system that can more effectively induce the wakefulness of the person according to the environmental level calculated by the sleepiness estimation device. It is arranged in a vehicle, an office, etc., and is used for a device that drives an air conditioner, a sound device or the like to induce human awakening.
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Abstract
Description
上記課題を解決するために、本開示の一態様に係る眠気推定装置は、人の周囲における複数の環境の状態を検出し、検出した前記環境の状態を示す環境情報を出力する環境検出部と、前記環境検出部が出力した前記環境情報に応じて、前記環境における前記人の眠くなりやすさの度合いを示す環境レベルを算出する算出部と、前記算出部が算出した前記環境レベルを出力する出力部と、を備える。
[眠気推定装置]
<構成>
まず、実施の形態に係る眠気推定装置について、図1~図3を参照して説明する。
続いて、実施の形態に係る眠気推定装置1の動作について、図4を参照して説明する。
<構成>
続いて、実施の形態に係る覚醒誘導制御装置および覚醒誘導システムの構成について、図5および図6を参照して説明する。
続いて、実施の形態に係る覚醒誘導制御装置100および覚醒誘導システム200の動作について、図9~図17Bを参照して説明する。なお、以下の説明においては、眠気レベルの判定基準として、図7に示す眠気レベル、眠気度合いおよび特徴例の関係が予め記憶部140に記憶されているものとする。また、図2に示す環境レベルを、環境情報に対する重み付けおよび当該重み付けから環境レベルを算出するためのアルゴリズムが予め記憶部140に記憶されているものとする。また、第1基準値は、眠気レベルが3として設定されているものとして説明する。また、第2基準値は、眠気レベルが1として設定されているものとして説明する。また、第3基準値は、眠気レベルが2として設定されているものとして説明する。
以上、本開示に係る眠気推定装置、覚醒誘導制御装置、および、覚醒誘導システムについて、実施の形態および変形例に基づいて説明したが、本開示は、上記の実施の形態および変形例に限定されるものではない。例えば、各実施の形態および変形例に対して当業者が思いつく各種変形を施して得られる形態や、本開示の趣旨を逸脱しない範囲で各実施の形態および変形例における構成要素および機能を任意に組み合わせることで実現される形態も本開示に含まれる。
2 算出部
100 覚醒誘導制御装置
110 眠気検出部
120 制御部
130 出力部
140 記憶部
150 環境検出部
160 取得部
200 覚醒誘導システム
300、300a~300j 覚醒誘導部
301a、301b、301c、301d 個別覚醒誘導部(覚醒誘導部)
400 撮像部
500 表示部
510 画像
600 車両
700 室内
800 センサ
U、U1、U2 ユーザ
Claims (12)
- 人の周囲における複数の環境の状態を検出し、検出した前記環境の状態を示す環境情報を出力する環境検出部と、
前記環境検出部が出力した前記環境情報に応じて、前記環境における前記人の眠くなりやすさの度合いを示す環境レベルを算出する算出部と、
前記算出部が算出した前記環境レベルを出力する出力部と、を備える
眠気推定装置。 - 請求項1に記載の眠気推定装置と、
前記環境レベルに応じた態様で前記人の覚醒を誘導する覚醒誘導部を駆動させる制御部と、を備える
覚醒誘導制御装置。 - さらに、前記人の眠気度合いを示す眠気レベルを検出する眠気検出部を備え、
前記制御部は、前記眠気検出部が検出した前記眠気レベルが第1基準値以上の場合に、前記覚醒誘導部を駆動させる
請求項2に記載の覚醒誘導制御装置。 - 前記環境に複数の人がいる場合、
前記眠気検出部は、前記複数の人のそれぞれの眠気レベルを検出し、
前記制御部は、前記複数の人のそれぞれの眠気レベルが第2基準値以下の場合、前記覚醒誘導部を停止させる
請求項3に記載の覚醒誘導制御装置。 - 前記制御部は、前記複数の人の中の一部の人のみの眠気レベルが、前記第2基準値よりも大きい場合、前記一部の人に対してのみ前記覚醒誘導部を駆動させる
請求項4に記載の覚醒誘導制御装置。 - さらに、前記覚醒誘導部を制御するための制御パラメータを取得する取得部を備え、
前記制御部は、前記取得部が取得した前記制御パラメータに応じた態様で、前記覚醒誘導部を駆動させる
請求項2~5のいずれか1項に記載の覚醒誘導制御装置。 - 前記制御パラメータは、前記制御部が前記覚醒誘導部を駆動して停止させるまでの駆動時間を含む
請求項6に記載の覚醒誘導制御装置。 - 前記制御パラメータは、現在時刻を含み、
前記制御部は、前記制御パラメータが示す前記現在時刻に応じて、前記覚醒誘導部を駆動させる態様を変更する
請求項6又は7に記載の覚醒誘導制御装置。 - 前記制御パラメータは、前記人の眠気度合いを示す眠気レベルを所定の眠気レベルまで覚醒させるための覚醒度合いを示す覚醒度情報を含む
請求項6~8のいずれか1項に記載の覚醒誘導制御装置。 - 前記覚醒誘導制御装置は、前記人の覚醒を誘導する覚醒誘導方法の異なる複数の覚醒誘導部と接続されており、
前記制御部は、前記環境レベルに応じた態様で前記複数の覚醒誘導部の中の1以上の覚醒誘導部を駆動させる
請求項2~9のいずれか1項に記載の覚醒誘導制御装置。 - 前記制御部は、前記人における、前記人の眠気度合いを示す眠気レベルが所定時間第3基準値以下とならない場合、駆動させている前記1以上の覚醒誘導部と異なる覚醒誘導方法の覚醒誘導部を駆動させる
請求項10に記載の覚醒誘導制御装置。 - 請求項2~11のいずれか1項に記載の覚醒誘導制御装置と、前記覚醒誘導部と、を備える
覚醒誘導システム。
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