WO2016067594A1 - Work capability control system - Google Patents

Abstract

A work capability control system comprises: a content acquisition unit (11) that acquires information about current work content of a worker; an environment acquisition unit (11) that acquires information about a work environment surrounding the worker; an intrinsic index unit (12, 43) that creates an index of the capability being used by the worker depending on the work content; a general index unit (12, 41) that creates an index of the capability required by the worker to carry out the work content on the basis of the work environment and the work content; an output unit (13, 30, 31, 32) that outputs the information about the work content to the worker; and a control unit (12, 29, 41) that controls the output unit. The control unit compares an intrinsic index obtained by the intrinsic index unit with a general index obtained by the general index unit, and, if the intrinsic index has a lack or excess relative to the general index, modifies the content of the information output from the output unit so as to eliminate the lack or excess.

Description

Work capacity control system Cross-reference of related applications

This application is based on Japanese Patent Application No. 2014-221636 filed on October 30, 2014 and Japanese Patent Application No. 2015-142168 filed on July 16, 2015, which is described herein. Incorporate content.

This disclosure relates to a work capability control system that performs control for optimizing a worker's capability.

In the prior art, the state of the user who is in the vehicle is detected, and the operation of the in-vehicle device is autonomously controlled so as to be in the form desired by the user from the detection result. As a result, the satisfaction level of the user riding in the vehicle is always maintained at a high level (see, for example, Patent Document 1).

JP 2007-145225 A

In the prior art described in Patent Document 1 described above, hospitality control is performed to increase user satisfaction, but hospitality control is performed without considering the ability used by the user. If the ability used by the user is not taken into account, the control that is automatically performed such as hospitality control may be bothersome to the user.

Therefore, the present disclosure has been made in view of the above points, and provides a work capability control system that performs control for optimizing a worker's ability in consideration of the ability used by the worker. For the purpose.

A work capability control system according to an aspect of the present disclosure includes a content acquisition unit that acquires information about a worker's current work content, an environment acquisition unit that acquires information about a work environment surrounding the worker, and the worker For the worker, a unique indicator part that indexes the ability used by the operator, a general indicator part that indexes the ability necessary for the worker to perform the work contents based on the work environment and work contents, and the worker An output unit that outputs information related to the work content and a control unit that controls the output unit are included. The control unit compares the unique index obtained by the unique indicator unit with the general indicator obtained by the general indicator unit, and if the unique indicator is excessive or insufficient with respect to the general indicator, the excess or deficiency is eliminated. Change the contents of the information output from the output unit.

According to this work capacity control system, the ability used by the worker is indexed by the specific index section, and the ability necessary for the worker to implement is indexed by the general index section. Thus, the unique index and the general index can be compared. Then, as a result of the comparison, if the specific index is excessive or deficient with respect to the general index, the control unit changes the content of the information output from the output unit so as to eliminate the excess or deficiency. Thus, for example, when the general index is higher than the specific index and the capability required for the work content is insufficient, it is possible to prompt the user to draw out the capability based on information from the output unit. Further, for example, when the general index is lower than the specific index and the ability is excessively used for the work content, the ability can be urged to be suppressed by the information of the output unit. As a result, the worker is urged to exhibit the necessary ability most efficiently according to the work content.

The above and other objects, features, and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing
FIG. 1 is a simplified block diagram illustrating a work capability control system according to an embodiment of the present disclosure. FIG. 2 is a flowchart showing the capability control process. FIG. 3 is a diagram for explaining the capability control process. FIG. 4 is a block diagram showing the driving support system. FIG. 5 is a flowchart showing processing during automatic operation. FIG. 6 is a flowchart showing processing when switching to manual operation. FIG. 7 is a flowchart showing processing when switching to automatic operation.

Hereinafter, a plurality of forms for carrying out the present disclosure will be described with reference to the drawings. In some embodiments, portions corresponding to the matters described in the preceding embodiments may be given the same reference numerals, or one letter may be added to the preceding reference numerals, and overlapping descriptions may be omitted. In addition, when a part of the configuration is described in each embodiment, the other parts of the configuration are the same as those of the embodiment described in advance. In addition to the combination of parts specifically described in each embodiment, the embodiments may be partially combined as long as the combination does not hinder the combination.

(First embodiment)
A first embodiment of the present disclosure will be described with reference to FIGS. The work ability control system 10 is a system that performs control for optimizing the ability of the subject in consideration of the ability used by the worker (also referred to as the subject). The target person refers to all persons who perform work, such as a driver and a factory worker. The work capability control system 10 is applied to an environment in which a target person must perform work while the environment changes from moment to moment. For example, driving a car and a predetermined work in a factory correspond to work performed in a changing environment.

Specifically, the work capability control system 10 indexes the ability of a person who is difficult to control by himself / herself, determines whether the necessary ability is used under the current situation, and the necessary ability is excessive or insufficient. In this case, it is a system that controls each unit to compensate for excess or deficiency of capability. As shown in FIG. 1, the work capability control system 10 includes a sensing unit 11, a calculation unit 12, and an actuator unit 13.

The sensing unit 11 is a content acquisition unit and an environment acquisition unit for grasping the environmental situation, the attributes and characteristics of the target person, and the current state of the target person. The environment and situation refers to a space that changes over time and is affected by changes in the environment and situation when performing work. For example, for the driver, it refers to the road conditions and the vehicle interior environment, and for the factory worker, it refers to changes in the work content to be performed and the field environment. The sensing unit 11 gives the acquired information to the calculation unit 12.

The sensing unit 11 acquires information on the work environment surrounding the target person using an environmental sensing method such as a camera, an infrared camera, and a microphone. In addition, the sensing unit 11 acquires the attributes and characteristics of the target person by personal authentication, for example. Therefore, the sensing unit 11 also functions as a unique acquisition unit that acquires unique information of the target person. In addition, the sensing unit 11 acquires the current state of the subject based on, for example, biological sensing and the operation state of the device. Therefore, the sensing unit 11 also functions as a content acquisition unit that acquires information on the current work content of the target person. The unique information includes personal information stored in the storage unit in advance such as the subject's sex, age, blood type, and history, and biological information acquired by the sensing unit 11.

The calculation unit 12 is a control unit that controls the actuator unit 13 based on information from the sensing unit 11. The arithmetic unit 12 is realized by, for example, an electronic control unit (Electronic Control Unit: abbreviated ECU). The computing unit 12 determines the ability required to perform work in a certain environment from the respective states grasped by the sensing unit 11, the ability that can be used to perform the work that the target person originally has, and the current target person Calculate the ability used to accomplish the work.

Therefore, the calculation unit 12 functions as a unique index unit that indexes the ability used by the target person according to the work content. The computing unit 12 also functions as a general index unit that indexes the ability necessary for the target person to perform the work content based on the work environment and the work content.

The actuator unit 13 is a unit that performs various stimuli that can change the ability of the subject to perform work. Therefore, the actuator unit 13 has a function as an output unit that outputs information related to the work content to the target person. The actuator unit 13 is realized by a device capable of changing the ability of the subject by a device capable of single or multiple senses. Therefore, the actuator unit 13 can perform not only the output of information depending on the type, but also an auxiliary operation for assisting the work content of the subject. The actuator unit 13 is realized by, for example, a vehicle air conditioner and a navigation device. The driving of the subject can be assisted by changing the in-vehicle environment by the vehicle air conditioner. The subject can also be influenced by information displayed on the navigation device and sound output. Further, the ability to perform the work may be secured by reducing or reducing the output of the device that has already assigned the target person with the ability to perform the work, or by stopping the output.

Next, the capability control process of the arithmetic unit 12 will be described with reference to FIG. The capability control process illustrated in FIG. 2 is a process that is repeatedly performed in a short time by the calculation unit 12. In step S1, various data are acquired from the sensing part 11, and it moves to step S2. In step S2, the target value Z is calculated by the sensing unit 11, and the process proceeds to step S2. The target value Z is a necessary ability value necessary for the target person to perform work in a certain environment.

In step S3, the target correction value θ is calculated, and the process proceeds to step S4. The correction value θ is an ability value that can be used to perform the work that the subject originally has. Therefore, the correction value θ differs depending on personal information, and is determined by, for example, blood type, exercise experience, age and sex.

In step S4, the current value X is calculated, and the process proceeds to step S5. The current value X is an ability value that the target person is currently using to perform work. The current value X is calculated from the subject's biological information, for example.

In step S5, the current value X is compared with the value obtained by multiplying the correction value θ by the target value Z in order to determine the operation of the device of the actuator unit 13. As a result of the comparison, if the multiplied value is equal to or greater than the current value X, the process proceeds to step S6, and if it is less than the current value X, this flow ends.

In step S6, the operation signal of the actuator unit 13 is calculated, and the process proceeds to step S7. As the operation signal, since the multiplied value is equal to or greater than the current value X, it exceeds the required ability value of the subject, so that the necessary ability value is increased or the amount of work currently being performed is reduced. 13 actuation signals are calculated. In step S7, the calculated operation signal is output to the actuator unit 13, and this flow is finished.

The target value Z necessary for performing work that changes in accordance with the environment and the situation as described above is compared with the current value X currently used by the subject. If the current value X is lower than the target value Z, feedback is given to increase the ability value currently used by the subject, and it is urged to achieve the ability value necessary for performing the work. .

In other words, the calculation unit 12 compares the current value X, which is the unique index obtained by the unique index unit, with the corrected target value Z, which is the general index obtained by the general index unit. When the specific index is excessive or insufficient with respect to the general index, the calculation unit 12 changes the content of the information output from the actuator unit 13 so as to eliminate the excess or deficiency.

Next, an example of how each value is calculated by the calculation unit 12 will be described. First, a description will be given of a method for calculating a necessary ability value necessary for performing work that varies depending on the environment and circumstances. The necessary ability value is a value obtained by indexing necessary ability for the target person to implement based on the work environment, the work content, and the specific information. For example, a case will be described in which the target person is a driver who drives a vehicle, the work content is driving the vehicle, and the work environment is environment information inside the vehicle, weather information outside the vehicle, and information on road conditions.

As shown in Tables 1 to 3, the items of ability necessary for the work performed by the target person are linked to the environment and situation, and are stored in advance in ROM (Read-Only Memory: abbreviated ROM). Yes. As a result, the biological data (biological information) obtained when the target person is actually performing work can be used and digitized by, for example, machine learning. Examples of biometric data related to the currently used capacity value include sleepiness, concentration and stress.

As shown in Table 1, since drowsiness, concentration, and stress vary depending on the travel location, the correction values are α1, α2, β1, β2, β1, γ1, and γ2 as reference values A, B, and C depending on the travel location with respect to the reference values. It is corrected using. The correction is performed by adding a correction coefficient at a travel location that requires a stricter determination than the reference value at the reference travel location, and subtracting the correction coefficient at a travel location that does not require a strict determination.

As shown in Table 2, drowsiness, concentration, and stress vary depending on the driving environment, and therefore, as reference values D, E, and F, correction coefficients are α3, α4, β3, β4, γ3, and γ4 depending on the driving environment with respect to the reference values. It is corrected using. The correction is performed by adding a correction coefficient in a driving environment that requires a stricter determination than the reference value in the reference driving environment, and subtracting the correction coefficient in a driving environment that does not require a strict determination.

As shown in Table 3, drowsiness, concentration, and stress vary depending on the weather, so the correction values α5, α6, β5, β6, γ5, and γ6 are used as the reference values G, H, and I for the reference values depending on the weather. Have been corrected. The correction is performed by adding a correction coefficient in the weather that requires a stricter determination than the reference value in the standard weather, and subtracting the correction coefficient in a weather that does not require a strict determination.

The values shown in Tables 1 to 3 are acquired, and drowsiness, concentration and stress are quantified by the following equations (1) to (3). Here, a1, a2, and a3 are coefficients to be corrected at the travel location. b1, b2, and b3 are coefficients to be corrected in the traveling environment. c1, c2, and c3 are coefficients corrected in the weather. d1 to d3 are coefficients for correcting the whole. The coefficient to be corrected is a parameter that determines a capability value necessary for performing the work of the subject, for example, and takes into account the attributes and characteristics of the subject. Attributes and characteristics refer to, for example, proficiency level for work, physical ability, and health status.

Sleepiness = a1 × travel location + b1 × travel environment + c1 × weather + d1 (Formula 1)
Concentration = a2 × travel location + b2 × travel environment + c2 × weather + d2 (Formula 2)
Stress = a3 × travel location + b3 × travel environment + c3 × weather + d3 (Equation 3)
In the equations (1) to (3), when the traveling place is a highway, the traveling environment is crowded, and the weather is light rain, the following equations (4) to (6) are obtained.

Sleepiness = a1 × (A + α2) + b1 × (D + α3) + c1 × (G + α5) + d1 (Formula 4)
Concentration power = a2 × (A + α2) + b2 × (D + α3) + c2 × (G + α5) + d2 (Formula 5)
Stress = a3 × (A + α2) + b3 × (D + α3) + c3 × (G + α5) + d3 (Expression 6)
Next, a method for calculating the use ability value currently used by the subject will be described. The use ability value is a value obtained by indexing the ability used by the subject according to the work content based on the work content and the biological information. The relationship between the biological data to be digitized and the ability value is the same as the calculation of the necessary ability value described above. The concentration can be grasped using, for example, the content rate of the electroencephalogram α wave and the state of cerebral blood flow in the frontal lobe. Drowsiness can be grasped using, for example, the content rate of the electroencephalogram θ wave, the eye movement, and the degree of relaxation of the facial expression muscle. The stress can be grasped using, for example, the temperature distribution on the face surface and the degree of sweating due to tension. These are converted into numerical values so that they can be compared with the values calculated by the above-described equations (1) to (3). The relationship between the biometric data and the ability value is an example, and is not limited to the above-described relationship between the biometric data and the ability. The digitization of concentration, etc. is not limited to the above-described biometric data, and the concentration, etc. may be grasped and digitized using a plurality of other biometric data including the biometric data.

Next, a comparison between the required ability value and the use ability value of the subject will be described with reference to FIG. In FIG. 3, when the driver is performing the operation of driving, the calculation of the use ability value is shown in a graph. The required ability value varies depending on the attributes and characteristics of the subject as described above.

In FIG. 3, as an example, (a) a skilled person is traveling at high speed, (b) a beginner is traveling at high speed, (c) a skilled person is traveling at high speed in rainy weather, (d) This shows a case where a beginner is traveling at high speed in rainy weather. In the cases of (a), (b), and (c), the necessary capacity values Z1, Z2, and Z3 are lower than the usable capacity value X1, so the current state is maintained. However, in the case of (d), the required ability value Z4 exceeds the use ability value X1. Therefore, the air-conditioning is controlled so as to reduce the speed from the high-speed traveling, output music for the driver to relax, or improve the vehicle interior environment. As a result, the required capacity value can be lowered or the usable capacity value can be increased.

As described above, the calculation unit 12 of the present embodiment digitizes the ability used by the subject, and the ability required for the subject to perform. This makes it possible to compare the required capacity value with the use capacity value. Then, as a result of the comparison, when the use capacity value is excessive or insufficient with respect to the required capacity value, the calculation section 12 changes the content of the information output from the actuator section 13 so that the excess or deficiency is eliminated. Thus, for example, when the required capability value is higher than the use capability value and the capability required for the work content is insufficient, it is possible to prompt the direction to draw out the capability by the information from the actuator unit 13. Further, for example, when the required capability value is lower than the use capability value and the capability is excessively used for the work content, it is urged to suppress the capability by the information of the actuator unit 13. As a result, the target person is encouraged to demonstrate the ability required for the work content.

Further, in the present embodiment, the necessary ability value indexes the ability necessary for the target person to implement based on the work environment, the work content, and the specific information. Accordingly, since the necessary ability value is indexed using the specific information of the target person, the individual ability can be reflected in the necessary ability value. As a result, the calculation accuracy of the required capability value can be improved.

Furthermore, in the present embodiment, the use ability value indexes the ability used by the worker according to the work content based on the work content and the biological information. Therefore, since the use ability value is indexed using the biometric information of the subject, the current biometric information of the subject can be reflected in the use ability value. As a result, the calculation accuracy of the usage ability value can be improved.

As described above, in the work capability control system 10 according to the present embodiment, the capability value necessary for performing the work that changes according to the environment and the situation is determined, and the capability value currently used by the target person is compared and required. Give the passengers a lot of feedback. As a result, the target person can efficiently perform work, and the occurrence of human error can be suppressed.

(Second Embodiment)
Next, a second embodiment of the present disclosure will be described with reference to FIGS. In this embodiment, the work capability control system 10 of the first embodiment is applied to a driving support system 20 that supports driving of a vehicle. Therefore, the driving support system 20 sets a worker in the work capability control system 10 as a driver, and performs control for optimizing the driver's capability in consideration of the capability used by the driver. The driving support system 20 shown in FIG. 4 can switch the vehicle between an automatic driving state and a manual driving state. The driving support system 20 is mounted on a vehicle. The driving support system 20 includes a driving support device 21, a surrounding environment recognition device 22, a vehicle behavior related sensor 23, a brake switch 24, an accelerator switch 25, a steering torque sensor 26, a vehicle interior camera 27, a biosensor 28, a vehicle control ECU 29, a vehicle Air conditioner 30, acoustic device 31, odor generator 32, and operation changeover switch 33. Hereinafter, a vehicle equipped with the driving support system 20 is referred to as a host vehicle.

The surrounding environment recognition device 22 includes a camera such as a camera and a laser radar that captures a predetermined range around the host vehicle, and recognizes the surrounding environment of the host vehicle based on information detected by these sensors. As an example of the surrounding environment to be recognized, there are a road shape around the own vehicle, a preceding vehicle, an obstacle around the own vehicle, and the like.

The surrounding environment recognition device 22 recognizes a lane by performing a known image recognition process such as edge detection on a captured image of a camera, for example. Then, the surrounding environment recognition device 22 recognizes the road shape around the own vehicle by calculating the recognized lane width, the radius of curvature of the lane, the offset amount of the own vehicle from the lane center, and the like.

The surrounding environment recognition device 22 performs well-known image recognition processing such as edge detection and template matching on the captured image of the camera, so that the size of the preceding vehicle of the own vehicle, the obstacle around the own vehicle, Specify the relative position of. And the surrounding environment recognition apparatus 22 specifies the speed and moving direction of an obstacle by the time change of the specified obstacle. In addition, when using a laser radar, a millimeter wave radar, or sonar, the surrounding environment recognition device 22 detects an obstacle based on the received intensity of the reflected wave that is generated when the transmitted exploration wave is reflected on the object. .

The vehicle behavior related sensor 23 detects information related to the behavior of the host vehicle. As the vehicle behavior-related sensor 23, a vehicle speed sensor that detects the speed of the host vehicle, an acceleration sensor that detects the acceleration of the host vehicle, a gyro sensor that detects the angular velocity of the host vehicle, and the position of the host vehicle are calculated from the positioning satellite of the positioning satellite system. There are receivers that can receive information.

The brake switch 24 is a switch that is turned on when the brake pedal of the own vehicle is depressed, and turned off when the brake pedal of the own vehicle is not depressed. The brake switch 24 outputs a signal corresponding to on / off. The accelerator switch 25 is a switch that is turned on when the accelerator pedal of the host vehicle is depressed, and turned off when the accelerator pedal of the host vehicle is not depressed. The accelerator switch 25 outputs a signal corresponding to on / off. The steering torque sensor 26 detects the steering torque applied to the steering wheel of the vehicle by the driver.

The vehicle interior camera 27 is a unique information acquisition unit, and is a biological information sensor that senses the driver to determine whether the driver of the vehicle is in a state of lack of concentration. A range including a person's face is imaged sequentially, for example, every 100 msec. The vehicle interior camera 27 may be installed at a position where the range including the driver's face can be imaged, such as the upper surface of the steering column cover. The vehicle interior camera 27 may be an optical camera or an infrared camera that can capture images even in an environment with little visible light.

The biosensor 28 is a unique information acquisition unit that detects a driver's biometric information. The biological sensor 28 is realized by, for example, a heart rate sensor, a respiration sensor, an electroencephalogram sensor, a body temperature sensor, and a blood pressure sensor. The heart rate sensor measures the heart rate of the driver of the own vehicle. The respiration sensor measures the respiration rate of the driver. The electroencephalogram sensor measures the amplitude and frequency of the driver's electroencephalogram. The body temperature sensor measures the driver's body temperature. The blood pressure sensor measures the blood pressure of the driver.

The vehicle control ECU 29 is an electronic control device that performs acceleration / deceleration control and steering control of the host vehicle. The vehicle control ECU 29 includes a steering ECU that performs steering control, an engine ECU that performs acceleration / deceleration control, a brake ECU, and the like. The vehicle control ECU 29 is a control unit, and also controls the vehicle air conditioner 30, the acoustic device 31, and the odor generating device 32.

The vehicle air conditioner 30 is an output unit and is an air conditioner that air-conditions the vehicle interior. The vehicle air conditioner 30 controls the temperature of the conditioned air blown into the vehicle interior so as to be the set temperature set by the driver. The vehicle air conditioner 30 is also controlled by the vehicle control ECU 29.

The acoustic device 31 is an output unit, which is also called a car audio, and outputs sound into the passenger compartment. The acoustic device 31 reproduces music stored in advance in the storage unit or music stored in the storage medium. The music stored in the storage unit includes a sound effective for relaxing the driver and a warning sound for awakening. The driver can determine the selection of music, the volume, the reproduction order, and the like by operating the operation unit of the audio device 31. The acoustic device 31 is also controlled by the vehicle control ECU 29.

The odor generating device 32 is an output unit, and outputs the odor to the passenger compartment. The odor generating device 32 outputs a plurality of fragrances stored in advance. The odor from the fragrance includes not only a relaxing odor but also a stimulating odor that promotes arousal. The driver can determine the type and release amount of the fragrance by operating the operation unit of the odor generating device 32. The odor generating device 32 is also controlled by the vehicle control ECU 29.

The operation switch 33 is connected to the driving support device 21. The operation changeover switch 33 is operated by the driver. When operated, the operation changeover switch 33 switches between automatic operation and manual operation. The operation switch 33 is provided, for example, in the steering of the own vehicle. For example, when an operation input indicating that automatic driving is to be performed is received, the driving switch 33 transmits a signal for switching from manual driving to automatic driving to the driving support device 21. Similarly, the operation changeover switch 33 transmits a signal for switching from automatic operation to manual operation to the driving support device 21 when an operation input for performing manual operation is received, for example.

The driving support device 21 includes a CPU, a memory such as a ROM and a RAM, an I / O, and a bus for connecting them, and executes various processes by executing a control program stored in the ROM. For example, the driving support device 21 can switch between automatic driving and manual driving, and when switching to automatic driving, instructs the vehicle control ECU 29 to perform automatic driving. The driving support device 21 switches from the automatic driving to the manual driving based on the detection of the driving operation of the driver of the own vehicle during the automatic driving, that is, the override. Note that some or all of the functions executed by the driving support device 21 may be configured by hardware using one or a plurality of ICs.

The driving support device 21 includes an automatic driving control unit 41, an override detection unit 42, a driver indexing unit 43, and a driving switching unit 44 as shown in FIG. The automatic driving control unit 41 is a control unit, and based on the surrounding environment of the own vehicle recognized by the surrounding environment recognition device 22 and information related to the behavior of the own vehicle detected by the vehicle behavior related sensor 23, Determine the course and speed. Then, the automatic operation control unit 41 transmits the determined information to the vehicle control ECU 29 as an instruction signal. Then, the vehicle control ECU 29 changes the steering angle, the brake pressure, the intake air amount, the gear ratio, etc. based on the instruction signal transmitted from the automatic operation control unit 41 so that the host vehicle travels at the target course and speed. Automatic operation. Examples of automatic driving include automatic driving that maintains the driving lane of the vehicle on an expressway, automatic driving that retreats to the shoulder when the vehicle is abnormal, and automatic driving that follows the preceding vehicle. There is.

The override detection unit 42 detects an override during automatic operation by the automatic operation control unit 41. As an example, when the brake switch 24 is on, a brake operation by the driver is detected, and when the accelerator switch 25 is on, the accelerator operation by the driver is detected, and driving is performed from the steering torque detected by the steering torque sensor 26. The steering operation by the person is detected. The brake operation by the driver may be detected based on a signal from a brake stroke sensor that detects the depression amount of the brake pedal. Similarly, the accelerator operation by the driver may be detected based on an accelerator stroke sensor signal that detects the amount of depression of the accelerator pedal.

The driver indexing unit 43 is a unique indexing unit, and indexes the state of the driver of the own vehicle based on the image taken by the vehicle interior camera 27 and the biological information measured by the biological sensor 28. The driver indexing unit 43 is based on the image including the face of the driver of the own vehicle captured by the in-vehicle camera 27 and the biological information measured by the biometric sensor 28, and the driver's drowsiness and concentration power. , Index stress sequentially. When drowsiness is indexed and used as the arousal level, for example, the content of the electroencephalogram θ wave measured by the biosensor 28 using the degree of eye opening of the driver and the degree of eye movement and relaxation of facial expression muscles from the captured image. Is used. When the concentration is indexed to obtain the concentration level, for example, the content rate of the electroencephalogram θ wave measured by the biological sensor 28 and the state of cerebral blood flow in the frontal lobe are used. Further, when the stress is indexed to be the comfort level, for example, the temperature distribution of the face surface measured by the biosensor 28 and the degree of sweating due to tension are used.

The operation switching unit 44 switches between automatic operation and manual operation. The operation switching unit 44 switches from manual operation to automatic operation when a signal requesting execution of automatic operation is received from the operation switch 33, for example. Similarly, when a signal requesting execution of manual operation is received, the automatic operation is switched to the manual operation. Further, the operation switching unit 44 switches from manual operation to automatic operation when an area in which automatic operation can be performed is reached.

Further, when the override detection unit 42 detects an override and the driver indexing unit 43 determines that the driver is not awake, the operation switching unit 44 determines that the override is invalid. This is because the operation performed in a non-wake state by the driver is relatively likely to be incorrect. On the other hand, when the override detection unit 42 detects an override and the driver indexing unit 43 determines that the state is awake, the override is determined to be valid. The operation switching unit 44 switches from automatic operation to manual operation when it is determined that the override is valid.

Next, specific control of the automatic operation control unit 41 will be described with reference to the flowcharts of FIGS. The processing shown in FIGS. 5 to 7 is repeatedly performed in a short time by the automatic driving control unit 41 when the driving support device 21 is in a power-on state, that is, when the ignition of the vehicle is on.

In step S51, it is determined whether or not automatic operation is in progress. If automatic operation is in progress, the process proceeds to step S52. If automatic operation is not in progress, this flow ends. In step S52, since automatic driving is in progress, the driver's arousal level is acquired, and the process proceeds to step S53. The awakening level is acquired from the driver indexing unit 43 as described above.

In step S53, the acquired arousal level is compared with a predetermined reference value to determine whether monitoring work is possible. The reference value is a general index, and is a numerical value of the ability required to monitor automatic driving. As a result, when the monitoring work is possible, this flow is ended, and when the monitoring work is not possible, the process proceeds to step S54. Since the driver needs to monitor the automatic driving even during the automatic driving, when the arousal level is low, it is necessary to improve the arousal level.

Therefore, in step S54, each part is controlled so that the arousal level is improved, and this flow is finished. As control for improving the arousal level, for example, control is performed so that cold air is blown out from the vehicle air conditioner 30 toward the face. Moreover, it controls so that a pungent odor is output from the odor generating device 32. Also, the sound device 31 is controlled to output a warning sound, uptempo music, or the like. The improvement of arousal level can be promoted by some, a combination, or all of these.

As described above, in the flowchart shown in FIG. 5, the driver does not have to perform the driving operation during the automatic driving, but has the sovereignty and needs to perform monitoring work. At this time, the driver's arousal level is acquired based on the electroencephalogram and facial expression, and it is determined whether the driver's arousal level is necessary for the monitoring work. When the required arousal level is insufficient, the level of the awakening level is controlled by a warning sound, cold wind, stimulating odor, or the like. As a result, the use ability value of the driver can be brought close to the necessary ability value necessary for monitoring the automatic driving. Therefore, it is possible to support the driving of the driver during the automatic driving of the driver sovereignty.

Next, control when switching from automatic operation to manual operation will be described with reference to FIG. In step S61, the operation switching unit 44 determines whether or not the automatic operation is switched to the manual operation. If the operation is switched to the manual operation, the process proceeds to step S62. finish.

In step S62, since manual operation has been switched, the awakening level and the concentration level are acquired, and the process proceeds to step S63. The awakening level and the concentration level are acquired from the driver indexing unit 43 as described above.

In step S63, since automatic driving is changed to manual driving, each part is controlled so that the driver's arousal level and concentration level are appropriate for manual driving, and this flow is finished. The appropriate value is a general index, which is a numerical value of the ability required to carry out manual operation. In the manual driving aptitude control performed in step S63, for example, when the arousal level is low, the above-described arousal level improvement control of FIG. 5 is performed so that the arousal level is improved. For example, when the degree of concentration is low, control is performed so that music that enhances concentration is output from the audio device 31 so that the user can concentrate on manual operation. The awakening level serving as a reference at this time is set to a higher value than the monitoring operation for automatic driving. This is because manual operation requires a higher capacity than monitoring work.

As described above, in the flowchart shown in FIG. 6, when the automatic operation is switched to the manual operation, each unit is controlled so that the driver is in a state suitable for the manual operation. As a result, the use ability value of the driver can be brought close to the necessary ability value necessary for manual driving.

Further, during manual operation, the required capacity value is compared with the use capacity value as in FIG. 3 of the first embodiment described above, and the vehicle air conditioner 30, the acoustic device 31, the odor generating device 32, and the like are controlled. . For example, when the stress is high and the comfort level is low due to a traffic jam or the like, a music with a gentle scent or rhythm is output and the comfort level is improved. Further, even when the wakefulness level becomes low during manual driving, control is performed so that the wakefulness level becomes an appropriate value for manual driving.

Next, control when switching from manual operation to automatic operation will be described with reference to FIG. In step S71, it is determined whether or not the operation switching unit 44 has switched from manual operation to automatic operation. If the operation has been switched to automatic operation, the process proceeds to step S72. finish.

In step S72, since it was switched to automatic driving, the arousal level and the comfort level are acquired, and the process proceeds to step S73. The arousal level and the comfort level are acquired from the driver indexing unit 43 as described above.

In step S73, since manual driving is changed to automatic driving, each part is controlled so that the driver's arousal level and comfort level are appropriate for automatic driving, and this flow is ended. The appropriate value is a general index, which is a numerical value of the capability required when automatic driving is performed. In the automatic driving aptitude control executed in step S73, for example, if the comfort level is low and the arousal level is high, a music and a scent with a slow rhythm are output so that the comfort level is suitable for automatic driving. The sound device 31 and the odor generating device 32 are controlled.

Thus, in the flowchart shown in FIG. 7, when switching from manual operation to automatic operation, each unit is controlled so that the driver is in a state suitable for automatic operation. As a result, the use ability value of the driver can be brought close to the necessary ability value necessary for automatic driving.

In the present embodiment, the automatic operation control unit 41 compares the specific index with the general index when the automatic switching and the manual operation are switched by the operation switching unit 44, and the specific index is excessive or insufficient with respect to the general index. In some cases, the devices 30, 31, and 32 are controlled so that there is no excess or deficiency. The vehicle air conditioner 30, the acoustic device 31, and the odor generating device 32 are output units, and perform an auxiliary operation that assists the driver in driving the vehicle. For example, the vehicle air conditioner 30 assists driving by making the vehicle interior comfortable by air-conditioning the vehicle interior. The acoustic device 31 assists driving by relaxing the driver by outputting music in the passenger compartment. Further, the odor generating device 32 assists driving by awakening the driver by generating a stimulating odor. Therefore, even if the general index obtained by switching between automatic driving and manual driving changes, the inherent index can be made close to the general index so that the inherent index is not excessive or insufficient.

In the present embodiment, the automatic operation control unit 41 compares the specific index and the general index during the automatic operation, and if the specific index is excessive or insufficient with respect to the general index, the excessive or insufficient is eliminated. Thus, the vehicle air conditioner 30, the acoustic device 31, and the odor generating device 32 are controlled. Therefore, when the driver monitors the automatic driving during the automatic driving, the unique index can be controlled so as not to be excessive or deficient with respect to the general index corresponding to the monitoring. Therefore, it is possible to assist the driver's monitoring and to suppress the monitoring failure.

In the present embodiment, automatic driving that accepts a driver's operation even during automatic driving is performed, but the present invention is not limited to automatic driving in which the driver has sovereignty. For example, the vehicle may have sovereignty and may be fully automatic driving that does not accept driver's operation for automatic driving. In such a case, the driver does not need to monitor, so if you want to take a nap, for example, if you want to take a nap, a song with a slightly lower heart rate than the heart rate and a scent suitable for a nap Is controlled so that the sound device 31 and the odor generating device 32 are output. In addition, as long as the lighting can be controlled, the lighting or the like may be controlled so that the indoor environment is suitable for nap.

Also, the operation switching unit 44 may switch from manual operation to automatic operation even when the driver is in poor physical condition. The driving switching unit 44 shifts to automatic driving when the driver's arousal level is low due to illness or the like and the low state is not improved by the devices 30, 31, and 32 due to the situation of the biosensor 28 and the vehicle interior camera 27. And you may stop at a safe place. If the biosensor 28 detects that the driver is in a drunk state, the vehicle is prohibited if the vehicle is stopped, and if the vehicle is traveling, the vehicle is shifted to automatic driving, and in a safe place. It may be stopped.

The flowchart described in the present disclosure or the process of the flowchart is configured by a plurality of parts (or referred to as steps), and each part is expressed as, for example, S1. Furthermore, each part can be divided into a plurality of sub-parts, while the plurality of parts can be combined into one part. Furthermore, each part configured in this manner can be referred to as a circuit, a device, a module, and a means.

In addition, each of the above-mentioned plurality of parts or a combination thereof includes (i) not only a software part combined with a hardware unit (for example, a computer) but also (ii) hardware (for example, an integrated circuit, wiring) As a part of the logic circuit), it can be realized with or without including the functions of related devices. Further, the hardware unit can be configured inside the microcomputer.

(Other embodiments)
The preferred embodiments of the present disclosure have been described above. However, the present disclosure is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present disclosure.

The structure of the above embodiment is merely an example, and the scope of the present disclosure is not limited to the scope of these descriptions. The scope of the present disclosure is indicated by the description of the scope of claims, and further includes meanings equivalent to the description of the scope of claims and all modifications within the scope.

In the first embodiment described above, the sensing unit 11 directly detects various types of information, but is not limited to such a configuration. For example, the sensing unit 11 may acquire information from a server or the like.

In the above-described first embodiment, the required ability value and the general ability value are digitized and compared, but are not limited to the digitized control. The comparison may be made not by quantification but by dividing the level according to a predetermined stage and comparing the levels. Therefore, it is not limited to a numerical value as long as it is not a numerical value but an index with superiority or inferiority in advance.

In the second embodiment described above, the unique information acquisition unit is realized by the vehicle interior camera 27 and the biological sensor 28 mounted on the vehicle, but it is not necessary to be mounted on the vehicle. For example, various information of the driver may be acquired by communicating with a wearable terminal worn by the driver and a sensor attached to the driver.

In the above-described second embodiment, one of the work contents of the driver is the monitoring of the automatic driving, but is not limited to the monitoring of the automatic driving of the vehicle. For example, the present system may be applied to a supervisor who monitors moving means such as airplanes, spacecrafts, artificial satellites, trains, buses, and transportation means. Further, the present system may be applied to a monitor stationed in a monitoring room that monitors facilities and buildings.

In the second embodiment described above, various actuators are controlled using the operator's unique index when switching between automatic operation and manual operation. However, the present invention is not limited to such a case. For example, it may be used when switching between work and break in the office, and may be used when, for example, an airplane pilot switches between automatic driving and manual driving. Further, for example, it may be applied when a long-distance bus driver and a taxi driver are switched between a case where the passenger is on board and a case where the passenger is not on the passenger. Further, for example, the present system may be mounted on a study desk and used in a scene where studying or switching between work and rest is performed. Similarly, it may be used in a space used by switching between task and rest, such as a rear seat of a vehicle or a business class seat of an airplane.

Furthermore, it may be used on the factory line. Use in an environment where it is difficult for people to maintain the awakening level, such as line work that repeats simple work at a fixed position or night shift work, to maintain the arousal level and concentration required for the work content in an appropriate state Is possible. Further, by outputting the worker's state as information to the manager, it is possible to detect a worker with poor physical condition, consider safety, and prompt the worker to rest.

Although the present disclosure has been described with reference to the embodiments, it is understood that the present disclosure is not limited to the embodiments and structures. The present disclosure includes various modifications and modifications within the equivalent range. In addition, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.

Claims (6)

1. A content acquisition unit (11) for acquiring information on the current work content of the worker;
   An environment acquisition unit (11) for acquiring information on a work environment surrounding the worker;
   A unique index section (12, 43) for indexing the ability used by the worker according to the work content;
   A general indicator unit (12, 41) for indexing the ability of the worker to perform the work content based on the work environment and the work content;
   An output unit (13, 30, 31, 32) for outputting information related to the work content to the worker;
   A control unit (12, 29, 41) for controlling the output unit,
   The control unit compares the specific index obtained by the specific index unit with the general index obtained by the general index unit, and if the specific index is excessive or insufficient with respect to the general index, A work capability control system that changes the content of information output from the output unit so that there is no shortage.
2. A unique acquisition unit (11, 27, 28) for acquiring unique information of the worker;
   2. The work capability control system according to claim 1, wherein the general index unit indexes a capability required for the worker to perform based on the work environment, the work content, and the unique information.
3. The unique information includes the worker's biological information,
   The work capability control system according to claim 2, wherein the unique index unit indexes the ability used by the worker according to the work content based on the work content and the biological information.
4. The worker is a driver who drives a vehicle,
   The work content is driving the vehicle,
   The work capacity control system according to any one of claims 1 to 3, wherein the work environment is environment information inside the vehicle, weather information outside the vehicle, and information related to road conditions.
5. Mounted on the vehicle for automatic driving,
   An operation switching unit (44) for switching between automatic operation and manual operation;
   The output unit performs an auxiliary operation to assist the driver in driving the vehicle,
   The control unit compares the specific index with the general index when automatic operation and manual operation are switched by the operation switching unit, and the specific index is excessive or insufficient with respect to the general index. The work capability control system according to claim 4, wherein the content of the auxiliary operation performed by the output unit is changed so as to eliminate excess and deficiency.
6. Mounted on the vehicle for automatic driving,
   The work content during automatic operation is monitoring of automatic operation,
   The output unit performs an auxiliary operation to assist monitoring of the driver's automatic driving,
   The control unit compares the specific index with the general index when the vehicle is in automatic operation, and if the specific index is excessive or insufficient with respect to the general index, the excess or shortage is eliminated. The work capability control system according to claim 4, wherein the content of the auxiliary operation performed by the output unit is changed.
   
   

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