JP2017086678A - Biological state recognition device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biological state recognition device capable of recognizing a state of a biological activity such as a body condition of a person who operates each kind of a device.SOLUTION: The biological state recognition device estimates and notifies of a body condition of an operator, based on input speed of characters which are input by the operator from a character input part of a terminal unit, so that, even when the operator does not realize a change of his/her body condition, the biological state recognition device can notify the operator of a proper caution. Therefore the biological state recognition device is effective for health management of the operator, and improves safety when the operator operates each kind of a device (for example, a motor vehicle).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a biological state in which a human (operator) can recognize a biological state such as a person's physical condition and exercise ability when inputting character information to a device such as a portable terminal that can input character information. The present invention relates to a recognition device.

  Conventionally, as a device for recognizing the physical condition of a driver (driver) who drives a vehicle, for example, the driver is photographed by a camera, and the physical condition such as the driver's sleepiness is grasped from the face image, etc. An apparatus for giving a warning is known (see Patent Document 1).

JP 2014-71628 A

  In the above-described conventional technology, the driver can be alerted by a warning or the like, but not only when driving the vehicle, but when a person operates various devices in order to improve safety, etc. It is desired to warn a person by recognizing the physical condition of the person.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a biological state recognition device capable of recognizing the state of biological activity such as the physical condition of a person who operates various devices.

  (1) The biological state recognition device according to the first aspect of the present invention detects an input state of the character information that changes depending on the state of the biological activity of the operator when character information is input by the operator. A detection unit, and an operator state determination unit that compares the input state of the character information detected by the input state detection unit with a reference input state to determine the state of the biological activity of the operator. I have.

  In the present invention, an operator (person) can input character information, for example, by operating a character input unit of a mobile terminal (specifically, for example, a key input unit of a mobile terminal or a keyboard of a personal computer). The input state detection unit detects an input state (for example, input speed or degree of error) that changes depending on the state of the operator's life activity (for example, physical condition or athletic ability) among the input state of the character information. Then, the operator state determination unit compares the input state of the character information by the operator with the input state serving as a reference, and determines the state of biological activity (biological state) of the operator.

  In other words, in the present invention, when the operator inputs character information to, for example, a portable terminal, the input state of the character information is detected, and the state of the biological activity of the operator is determined based on the input state of the character information. Therefore, it is possible to easily recognize the state of biological activity such as the physical condition and exercise ability of the operator.

  Specifically, when a person's physical condition is poor, for example, the ability to input characters (for example, input speed) to the mobile terminal is reduced, so that the person's physical condition is entered from the state of inputting character information as in the present invention. The state of life activity such as can be grasped.

  Therefore, according to the present invention, for example, a mobile terminal is operated without taking a human image with a camera to determine the state of the person's physical condition or the like, or without determining the state of the person's physical condition with an electrocardiogram or the like. Thus, it is possible to easily grasp the state of a person's physical condition and the like from the state when inputting characters.

Therefore, by notifying the person or the like of the physical condition of the recognized person, for example, there is an advantage that it contributes to safety and health management when operating various devices.
Here, the character information is information on characters input to the input target device and information such as symbols input in association with characters when inputting words or sentences. Specific examples include characters such as hiragana, kana, kanji, and alphabets. including. Note that only characters may be employed as the character information.

  The input state of character information is a state related to input such as the speed at which character information is input and the rate of mistakes in inputting character information. When a person inputs character information, the physical condition and exercise of the person It changes according to the state of life activity such as ability (active or undertone etc.).

  An operator's state of biological activity is a person's psychological, brain, or physical activity state, such as a person's physical condition (eg, fever, drowsiness, etc.), motor ability or cognitive ability. When the state of activity decreases (for example, when it falls below the normal range), the input state of character information also decreases (for example, the input speed decreases or errors in input characters, words, sentences, etc. increase).

  As the reference input state, data can be collected from many people in advance through experiments or the like and set based on the collected data. When an operator is specified, a certain amount of data may be accumulated (for example, during a normal period), and a reference input state may be set from the data.

  In addition, a character input part is mentioned as a mechanism which inputs character information into various apparatuses, such as a portable terminal and a personal computer. That is, the character input unit is a mechanism for inputting character information in an information processing apparatus capable of processing character information such as a portable terminal or a personal computer, and examples thereof include a keyboard and a touch panel.

  (2) In the biological state recognition device according to the second aspect of the present invention, the input state detection unit detects the speed at which character information is input, and the operator state determination unit detects the speed at which the character information is input and the reference. The state of the biological activity of the operator may be determined by comparing the speed with which the character information is input.

  When the state of life activity such as a physical condition of a person is bad, the speed of inputting character information is usually reduced. Therefore, it is possible to accurately determine the state of life activity such as the physical condition of a person from the input speed of character information. In other words, when the speed of inputting character information is lower (slower) than the reference value indicating the normal state, the state of the biological activity such as the physical condition of the person is poor (for example, the physical condition or exercise ability of the person is lower than usual). It is possible to determine that the

  As a speed at which character information is input, for example, a speed at which a character string of a predetermined number of characters (for example, 100 characters) is input can be employed. Alternatively, the sentence to be input is divided into words (such as "Hello" or "yesterday"), determined the rate to be input to each word, it is also possible to adopt the speed.

  (3) In the biological state recognition device according to the third aspect of the present invention, the input state detection unit detects the ratio of wrong character information in the input character information, and the operator state determination unit inputs it incorrectly. The state of the biological activity of the operator may be determined by comparing the ratio of the character information that has been input and the ratio of the character information that is erroneously input as a reference.

  When the state of biological activity such as a person's physical condition is bad, there are usually many errors in characters, words, sentences, etc. when inputting character information. Therefore, it is possible to accurately determine the state of a person's physical condition or the like from the degree of error in inputting character information. In other words, if the percentage of mistakes in inputting character information is greater than the reference value indicating a normal state, the state of life activity such as a person's physical condition is poor (for example, the person's physical condition or exercise ability is lower than usual). It is possible to determine that the

(4) As a fourth aspect of the present invention, the determination result of the state of the biological activity of the operator may be notified.
For example, when the state of the life activity is worse (than usual), a warning indicating that the vehicle is to be stopped may be displayed on, for example, a display of a portable terminal or by voice.

  (5) As a fifth aspect of the present invention, the state of the life activity of the operator may be classified according to the level, and notification according to the level may be performed. For example, when the state of the biological activity of the operator is extremely bad, a warning may be given to go to the hospital.

  (6) As a sixth aspect of the present invention, the tendency of the operator's dementia may be determined from the ratio of character information input incorrectly. That is, when the degree of dementia becomes severe, the ratio of character information that is input incorrectly tends to increase. Therefore, the degree of dementia may be estimated from the ratio of character information that is input incorrectly.

  (7) As a seventh aspect of the present invention, the degree to which the character input unit is operated (for example, frequency (number of times per hour), operation time, etc.) is determined, and the state of the biological activity of the operator is determined according to the degree. You may judge.

  For example, when there is a lot of mail transmission / reception on a mobile terminal etc., the character input part is operated to a large extent, so if the operation level is excessively greater than the reference value, the operator becomes tired and the It can be estimated that the state of life activity is poor.

  (8) As an eighth aspect of the present invention, when it is determined that the state of the biological activity of the operator is worse than normal (reference value), when the vehicle is driven, the operation of the vehicle is made safe according to the degree. You may control to the side.

  For example, when it is determined that the state of the biological activity of the operator is poor due to the input state of the character information, the vehicle acceleration may be controlled to be lower than usual, or the braking force may be increased. .

  (9) As the ninth aspect of the present invention, the psychological state of the operator is determined from the contents of the input character information. In particular, it may be determined that the psychological state is bad.

Further, when the vehicle is driven when the psychological state is bad, the operation of the vehicle may be controlled to the safe side according to the degree of the psychological state of the operator.
(10) As a tenth aspect of the present invention, the age may be estimated and reported according to the input speed.

  In other words, since the input speed tends to decrease as the age increases, the operator's age may be estimated from the input speed.

It is a block diagram which shows the system configuration | structure containing the terminal device of 1st Embodiment. It is a top view which shows the display part etc. of the terminal device of 1st Embodiment. It is a flowchart which shows the control processing in the terminal device of 1st Embodiment. It is a flowchart which shows the control processing in the terminal device of 2nd Embodiment. It is explanatory drawing which shows the system configuration | structure containing the terminal device and vehicle control apparatus of 3rd Embodiment. It is a block diagram which shows the system configuration | structure containing the vehicle control apparatus of 3rd Embodiment. It is a flowchart which shows the control processing in 3rd Embodiment. It is a flowchart which shows the control processing in 4th Embodiment. It is a flowchart which shows the control processing in 5th Embodiment. It is a flowchart which shows the control processing in 6th Embodiment. It is a flowchart which shows the control processing in 7th Embodiment. It is a flowchart which shows the control processing in 8th Embodiment.

Embodiments to which the present invention is applied will be described below with reference to the drawings.
<First Embodiment>
In the first embodiment, a portable terminal (terminal device) will be described as an example of a biological state recognition device.

[1. Constitution]
First, a system configuration including the terminal device of the first embodiment will be described.
As shown in FIG. 1, a terminal device (for example, a mobile terminal such as a smartphone) 1 according to the first embodiment is an information processing device that can be carried and carried by a person, communicates with a base station 3, and via an Internet network. Information can be transmitted to and received from the server 5.

  The terminal device 1 includes a housing 11, a display unit (display) 13, an input unit (character input unit) 15, a communication unit 17, a sound output unit (speaker) 19, a control unit 21, a storage unit (memory) 23, and the like. It has. Each configuration will be described below.

  As shown in FIG. 2, the display unit 13 of the terminal device 1 is, for example, a liquid crystal display device arranged to cover one surface of the terminal device 1, and the display unit 13 includes character information such as characters and the like. Images (still images and moving images) can be displayed.

  The display unit 13 has not only a display function but also a touch panel function. By touching a predetermined position, the display unit 13 operates the terminal device 1, changes the display state of an image, and inputs characters. be able to.

The character input unit 15 is provided in a part of the display unit 13 (the lower half in FIG. 2), and each key 25 is assigned according to a character to be input or the like as is well known.
That is, the character input unit 15 is set as a touch panel in a part of the display unit 13, and the type of the key 25 is displayed according to each character. Specifically, each line is assigned to each key 25, for example, “A” line, “K” line, and the characters on each line are sequentially selected by, for example, the number of times the key 25 corresponding to each line is pressed. It is set to be possible.

  The character input unit 15 may be displayed on the display unit 13 at all times, but the character input unit 15 may be displayed only when necessary without displaying the character input unit 15 normally. In addition, when not displaying the character input part 15, you may display an image, a character, etc. on the display part 13 whole surface.

  In addition, a character input unit having a plurality of keys that are mechanically operated separately from the display unit, such as a foldable mobile phone, may be provided. Or you may provide the character input part which has several keys like the keyboard of a personal computer, for example.

The communication unit 17 is a communication device that communicates with an external device (base station) 3 and the like, and is capable of transmitting and receiving voice information, character information, image information, and the like.
The sound output unit 19 is a device that drives a speaker to output sound or voice.

The control unit 21 is an electronic control device having a microcomputer including a known CPU, RAM, and the like, and has a function of controlling the operation of the terminal device 1.
The storage unit 23 is a memory (for example, a non-volatile memory) that stores a program for controlling the terminal device 1 and various data.

[2. processing]
Next, processing executed by the control unit 21 (specifically, the CPU) according to a program will be described.

<Physical condition determination process based on input speed>
Here, a process for determining the physical condition of the operator based on the input speed of the character information will be described.

  As shown in FIG. 3, in step 100, when the character input unit 15 is operated, character information (characters and symbols: hereinafter may be simply referred to as characters) indicated by the operation is input to the control unit 21. (For example, a process of storing characters in the RAM). Further, when a character is input, the input time (time information) is also stored.

As the time when the character is input, for example, the time (time information) when the character is confirmed and stored in the nonvolatile memory can be adopted.
That is, normally, when sending a mail or the like from the terminal device 1, when inputting characters to the terminal device 1, the characters are once displayed on the display unit 13 according to the pressed key 25. The confirmation key 25 that decides to use a character is operated to confirm the character. The determined content is stored in, for example, a nonvolatile memory. Thereafter, if the confirmed character is not changed due to deletion or the like, an e-mail is transmitted with the content. Therefore, here, the time information of the time when the character is determined is stored. In addition, for example, the time when a character is first input may be stored.

  In the following step 110, the character input speed is detected from the input character and its time information. For example, when 100 characters are input, the input speed is calculated from the time taken to input the 100 characters. For example, 100 characters are divided by the time (seconds) required for input to calculate how many characters are input per second (that is, input speed).

  In the following step 120, the character input speed is determined. For example, the character input speed calculated this time is compared with a reference character input speed to determine a level indicating the level of the input speed.

  The reference character input speed is, for example, a reference value (normal value) obtained from data (for example, average) of input speeds of a plurality of people who are in good physical condition in advance, and the input speed is compared with this reference value. Can be determined.

  The input speed level can be classified into a plurality of levels such as “slow”, “slightly slow”, “normal”, and the like. For example, if the input speed is higher than the reference value, it will be “normal”, if it is less than the reference value and more than half of the reference value, it will be “slow”, and if it is less than half the reference value, it will be “slow”. Can do.

In the subsequent step 130, the physical condition of the operator is determined based on the determination result of the character input speed.
That is, when the input speed is slower than normal, it is considered that the physical condition is bad, and therefore the degree (level) of the physical condition can be determined according to the level of the input speed. The physical condition level can be classified into a plurality of levels such as “bad”, “slightly bad”, “normal”, and the like.

  For example, when the input speed level is “normal”, the physical condition level is “normal”, when the input speed level is “slightly slow”, the physical condition level is “slightly bad”, and the input speed level is “slow”. ", The physical condition level can be set to" bad ".

  In subsequent step 140, it is determined whether or not to notify the result determined in step 130 (physical condition determination result). If an affirmative determination is made here, the process proceeds to step 150. If a negative determination is made, the present process is temporarily terminated. For example, when the physical condition determination result is “bad”, it can be set to notify that effect.

In step 150, the determination result, for example, “physical condition is bad” is displayed on the display unit 13, or the sound output unit 19 is notified by voice.
Further, advice accompanying the determination result (for example, advice such as “Please take a break”) may be notified.

In addition, about the process according to a determination result, while alert | reporting the state of each level according to each level of a physical condition, you may give the advice according to each level.
For example, if your physical condition is "slightly bad", give advice to "Please take a break". If your physical condition is "bad", it is stronger than that. May be performed.

[3. effect]
In the first embodiment, since the operator's physical condition is estimated and reported based on the input speed of characters input by the operator using the character input unit 15 of the terminal device 1, the operator's own physical condition is reported. Even when the change is not noticed, an appropriate warning or the like can be notified to the operator.

Therefore, it is effective for the health management of the operator, and even when the operator operates various devices (for example, automobiles), the safety is improved.
In the first embodiment, the physical condition determination process described above is performed in the terminal device 1. In addition, information related to the input character (for example, the input speed of the character and its time information) is transmitted to the server 5. Then, a similar physical condition determination process may be performed according to the program of the server 5 (processing is performed using a so-called cloud), and notification of the determination result or the like may be performed by the terminal device 1 (hereinafter, other embodiments are also described) The same).

  In the first embodiment, the input speed of a character string having a predetermined number of characters is detected. However, the input speed of a predetermined word may be adopted. For example, the input speed of words such as “good morning” and “goodbye” may be adopted.

Second Embodiment
Next, the second embodiment will be described, but the description of the same content as the first embodiment will be omitted. The same configuration as that of the first embodiment will be described using the same figure number.

In the second embodiment, the hardware configuration is the same as that of the first embodiment, and the control processing is different. Therefore, the contents of the control processing will be described.
<Physical condition determination process based on input error>
Here, a process for determining the physical condition of the operator based on the degree of error of the input character or the like will be described.

As shown in FIG. 4, in step 200, when the character input unit 15 is operated, a process of inputting character information indicated by the operation is performed.
In the following step 210, an error in the input character information is detected. For example, when 100 characters are input, an error in the 100 characters is calculated.

  As this mistake, for example, a mistake may be detected by using a known function for checking a mistake in a sentence (a so-called collect function). For example, in the case of the sentence “Look at the mountain”, since “has” is grammatically incorrect, such a wrong part may be detected.

  In addition to this, although it is once inputted and displayed on the display unit (or the character is confirmed), when the character is deleted thereafter, the deleted portion may be mistaken.

In the following step 220, the frequency (ratio) of errors in the input character information is calculated.
As the error frequency, for example, the ratio of the number of characters in the wrong place to a predetermined number of characters such as 100 characters can be used as the error frequency.

  In the next step 230, the degree of error (level) in the character information is determined from the calculated error frequency. For example, the error frequency of the character information calculated this time is compared with the error frequency of the character information used as a reference, and the level indicating the level of the error frequency is determined.

  Here, the reference error frequency is, for example, a reference value (normal value) obtained from data (for example, average) of frequency with which errors occur when a plurality of persons with good physical condition input character information in advance. By comparing with this reference value, it is possible to determine the error level of the input character information.

  Note that the error level can be classified into a plurality of levels such as “(there are many errors)”, “slightly many”, “normal”, and the like. For example, if the frequency of mistakes is less than the reference value, it will be “normal”, if it is less than 1.5 times the reference value from the reference value, it will be “somewhat more”, and if it is more than 1.5 times the reference value “Many”.

In the following step 240, the operator's physical condition is determined based on the determination result of the error level.
That is, when the mistake is slower than usual, it is considered that the physical condition is bad, and therefore the degree (level) of the physical condition can be determined according to the level of the error. The physical condition level can be classified into a plurality of levels such as “bad”, “slightly bad”, “normal”, and the like.

  For example, when the error level is “normal”, the physical condition level is “normal”, when the error level is “slightly high”, the physical condition level is “slightly bad”, and when the error level is “high” Can make his physical condition “bad”.

  In subsequent step 250, it is determined whether or not to notify the result determined in step 240 (physical condition determination result). If an affirmative determination is made here, the process proceeds to step 260, whereas if a negative determination is made, the present process is temporarily terminated.

  In step 260, the determination result, for example, “physical condition is bad” is displayed on the display unit 13, or the sound output unit 19 is notified by voice. Note that advice accompanying the determination result (for example, advice such as “Please take a break”) may also be notified.

In the second embodiment, the same effects as in the first embodiment are obtained.
<Third Embodiment>
Next, the third embodiment will be described, but the description of the same contents as the first embodiment will be omitted. The same configuration as that of the first embodiment will be described using the same figure number.

[1. Constitution]
As shown in FIG. 5, the terminal device 1 according to the third embodiment communicates with a vehicle control device 33 that is mounted on a vehicle (automobile) 31 and controls the vehicle 31, and the physical condition of the driver who is the operator. Accordingly, the vehicle 31 is controlled via the vehicle control device 33.

As shown in FIG. 6, the vehicle control device 33 is an electronic control device that includes a known CPU 33a, ROM 33b, RAM 33c, an input / output unit 33d, and the like.
The vehicle control device 33 is connected to a communication device 35, various sensors 37, a camera 39, a radar 41, a navigation device 43, a GPS (Global Positioning System) 45, switches 47, and the like. Further, an engine control unit 49, a brake control unit 51, a display device 53, a sound output device 55, and the like are connected.

Each configuration will be described below.
The communication device 35 is a device that communicates with the terminal device 1 or a device outside the vehicle (for example, the base station 3).

Examples of the various sensors 37 include various known sensors that detect the state of the host vehicle, such as a vehicle speed sensor, an acceleration sensor, a brake sensor, and a steering angle sensor.
The camera 39 is a unit that captures the situation around the host vehicle (for example, forward) and acquires the image.

  The radar 41 is a unit that detects a target based on the reflected wave of the irradiated radar wave. Note that millimeter waves, laser light, ultrasonic waves, and the like are used as radar waves. As is well known, the radar 41 can determine the distance from the target such as another vehicle, the relative speed, and the direction of the target.

  The navigation device 43 detects the current location of the host vehicle based on information from a positioning unit such as the GPS 45, and displays the position of the host vehicle along with the map on the display device 53, similarly to the known navigation device.

The switches 47 give various instructions to the vehicle control device 33 by the operation of the driver. For example, the switches 47 can instruct execution or stop of the well-known inter-vehicle control.
The engine control unit 49 is an electronic control device that controls the operation of the engine, and can control the output of the engine, for example, by controlling a fuel injection valve or the like.

The brake control unit 51 is an electronic control device that controls the operation of the brake, and can control the braking force, for example, by controlling the wheel cylinder pressure.
The display device 53 is, for example, a liquid crystal display device that is arranged on, for example, a dashboard and performs various displays. The display device 53 also serves as the display device 53 that displays a map or the like of the navigation device 49.

The sound output device 55 is a device that outputs sound, voice, and the like through a speaker.
[2. processing]
Next, the process which the vehicle control apparatus 33 performs mainly according to a program is demonstrated.

Here, the process which changes the content of vehicle control based on the level of the physical condition input from the terminal device 1 is demonstrated.
As shown in FIG. 7, in step 300, the vehicle control device 33 communicates with the terminal device 1 to obtain information on the determination result of the physical condition of the operator. For example, information indicating an operator's physical condition level (“normal”, “slightly bad”, “bad”) obtained by the processing of the first and second embodiments is input.

  In subsequent step 310, it is determined whether or not the acquired physical condition level is a level for changing the control content of the vehicle 31. For example, when it is set to change the control content of the vehicle 31 to the safe side when the physical condition is “poor”, the process proceeds to step 320 as “poor” and otherwise the process is temporarily terminated.

In step 320, since the physical condition is “bad”, the control content is determined so as to control the vehicle 31 to the safe side so that the vehicle 31 can be safely driven even when the physical condition is “bad”.
In step 330, the control content determined in step 320 is changed and the process is temporarily terminated.

  As an example of controlling to the safe side, for example, the engine control unit 49 performs control so that the degree of acceleration is weaker than usual even when the accelerator pedal is depressed during acceleration. Specifically, for example, the fuel injection amount is reduced to suppress the increase in speed.

  Further, for example, when the brake control unit 51 depresses the brake pedal during braking, control is performed so that the braking force is greater than usual. For example, the wheel cylinder pressure is quickly increased to increase the braking force.

In addition to controlling the vehicle 31, the display device 53 and the sound output device 55 of the vehicle 31 may notify the level of the driver's physical condition or notify the advice corresponding to the physical condition.
[3. effect]
In the third embodiment, the control content of the vehicle 31 is set to the safe side according to the physical condition (that is, when the physical condition is bad), so that there is an advantage that the driving safety is improved.

<Fourth embodiment>
Next, a fourth embodiment will be described, but the description of the same contents as the second embodiment will be omitted. In addition, about the structure similar to 2nd Embodiment, it demonstrates using the same figure number.

Since the hardware configuration of the fourth embodiment is the same as that of the second embodiment and the control processing is different, the contents of the control processing will be described.
<Dementia determination process based on input mistake>
Here, a process of determining the level of the operator's cognitive ability (for example, the level of dementia) based on the level of mistakes in input characters and the like will be described.

As shown in FIG. 8, in step 400, character information is input from the character input unit 15 of the terminal device 1.
In subsequent step 410, as in the second embodiment, an error in the input character information is detected.

In the following step 420, the frequency (ratio) of errors in the input character information is calculated.
In the subsequent step 430, the degree of error (level) in the character information is determined from the calculated error frequency.

In the subsequent step 440, the operator's dementia is determined based on the determination result of the error level.
That is, in the case of dementia, it is considered that there are many mistakes in input information, and therefore, dementia is determined according to the error level.

For example, when there are “slightly many” mistakes, the level is “slightly suspected of dementia”, and when there are many mistakes, the level is “suspected of dementia”.
In the subsequent step 450, the result determined in step 240 (dementia determination result) and the advice (for example, check in a hospital) are informed, and the process is temporarily terminated.

In the fourth embodiment, dementia can be determined from the degree of input error.
Here, the dementia is determined from the degree of the input error, but the dementia may be similarly determined from the input speed (for example, “slightly slow” or “slow” level determination).

The fourth embodiment is not limited to the determination of the degree of dementia, but can be applied to the determination of the degree of cognitive ability.
<Fifth Embodiment>
Next, the fifth embodiment will be described, but the description of the same contents as the first embodiment will be omitted. The same configuration as that of the first embodiment will be described using the same figure number.

Since the hardware configuration of the fifth embodiment is the same as that of the first embodiment and the control processing is different, the contents of the control processing will be described.
<An operator's fatigue level determination process based on the degree of input of character information>
Here, a process for determining the fatigue level of the operator based on the degree of input of character information will be described.

As shown in FIG. 9, in step 500, character information is input from the character input unit 15 of the terminal device 1.
In the subsequent step 510, the level of input character information (the level of input) is detected. Specifically, it is detected how many characters are input during a predetermined period (for example, one day). For example, depending on how much (how many characters) character information has been input during a predetermined period, the degree of effort spent on inputting characters (and hence the degree of fatigue) can be known.

In the following step 520, the level determination of the input level is performed based on the input level (for example, the number of characters input per day).
For example, the number of characters input per day is obtained as a reference value by an experiment or the like, and the level of the input level is determined by comparing with the reference number of characters.

  For example, when the number of characters input per day is 5 times or more to less than 10 times the standard, the degree of input is “slightly large”, and when the number of characters is 10 times or more than the standard, the degree of input is “excessive”. Can be determined.

In the subsequent step 530, the operator's fatigue level is determined based on the determined level of input.
For example, when the input level is “slightly large”, it can be determined that “slightly high fatigue level”, and when the input level is “excessive”, it can be determined that “fatigue level is high”.

  In the subsequent step 540, the result determined in step 530 (fatigue level determination result) and advice (for example, check at a hospital) are notified, and the process is temporarily terminated.

In the fifth embodiment, the degree of fatigue can be determined from the degree of input.
<Sixth Embodiment>
Next, although the sixth embodiment will be described, description of the same contents as those of the first embodiment will be omitted. The same configuration as that of the first embodiment will be described using the same figure number.

Since the hardware configuration of the sixth embodiment is the same as that of the first embodiment and the control processing is different, the contents of the control processing will be described.
<Operator's psychological state determination process based on negative words>
Here, a process of determining the psychological state of the operator based on the content of the input word will be described.

As shown in FIG. 10, in step 600, character information is input from the character input unit 15 of the terminal device 1.
In the subsequent step 610, the content of the word composed of the input characters is determined. For example, it is determined whether the input word is a negative word (for example, words such as “death”, “violence”, “attack”, “melancholy”).

  In the following step 620, the frequency of negative words is detected. For example, the frequency of negative words in characters input in a predetermined number of characters (for example, 500 characters) or a predetermined period (for example, one day) is detected.

In the subsequent step 630, the psychological state of the operator is determined from the frequency of negative words.
For example, the frequency of a negative word (in a normal person) is obtained as a reference value by an experiment or the like, and the psychological state of the operator is determined by comparing with the reference frequency.

  For example, when the frequency of negative words is 2 times or more to less than 3 times normal, the psychological state is “slightly bad”, and when the frequency is 3 times or more than the standard, the psychological state is “bad”. Can be determined.

In the subsequent step 640, the level of the determined psychological state is notified and advice (for example, check at a hospital) is notified, and the process is temporarily terminated.
In the sixth embodiment, the psychological state can be determined from the frequency of negative words.

<Seventh embodiment>
Next, the seventh embodiment will be described, but the description of the same contents as the third and sixth embodiments will be omitted. Note that the same configuration as in the third and sixth embodiments will be described using the same figure number.

Since the hardware configuration of the seventh embodiment is the same as that of the third embodiment and the control processing is different, the contents of the control processing will be described.
<Vehicle control processing based on psychological state>
Here, the process of controlling the vehicle based on the psychological state determined in the sixth embodiment will be described.

As shown in FIG. 11, in step 700, the vehicle control device 33 communicates with the terminal device 1 to obtain information on the determination result of the operator's psychological state from the terminal device 1.
In the subsequent step 710, it is determined whether or not to perform control according to the determination result. For example, if the psychological state is “bad”, the process proceeds to step 720 in order to perform appropriate vehicle control. Otherwise, the process is temporarily terminated.

In step 720, since the psychological state is “bad”, processing for controlling the vehicle 31 to the safe side (that is, control processing related to acceleration and braking similar to the third embodiment) is performed.
In the seventh embodiment, the vehicle 31 can be safely controlled even when the psychological state of the operator (and hence the driver) is bad.

<Eighth Embodiment>
Next, although an eighth embodiment will be described, description of the same contents as those of the first embodiment will be omitted. The same configuration as that of the first embodiment will be described using the same figure number.

Since the hardware configuration of the eighth embodiment is the same as that of the first embodiment and the control processing is different, the contents of the control processing will be described.
<Age estimation processing based on input speed>
Here, the estimation of age based on the input speed of character information will be described.

As shown in FIG. 12, in step 800, character information is input from the character input unit 15 of the terminal device 1.
In the subsequent step 810, the input speed of character information is detected.

In the following step 820, the age is estimated from the input speed of the character information.
That is, there is a certain correlation between the input speed of character information and the age, and generally there is a tendency that the input speed decreases as the age increases. Therefore, it is possible to obtain data on the relationship between age and input speed in advance by experiments or the like, and estimate the age from the input speed based on this correlation data.

In the subsequent step 830, the estimated age is notified, and the present process is temporarily terminated.
In the eighth embodiment, the age can be estimated from the input speed of the character information.
<Other embodiments>
As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that this invention can take a various form, without being limited to the said embodiment.

  (1) For example, in each of the above-described embodiments, the character input unit of a terminal device such as a mobile terminal such as a mobile phone or an iPhone is taken as an example, but a keyboard such as a personal computer can be used as the character input unit. That is, the physical condition or the like may be determined based on character information input from the keyboard.

  (2) Also, in each of the embodiments, instead of the process of determining the physical condition based on the input state of character information (for example, the input speed or the error of the input character information), according to the input state of the character information You may determine athletic ability.

For example, when the input speed of character information is lower than a reference value indicating a normal state or when there are more errors than the reference value, it may be determined that the exercise capacity is lower than normal.
(3) Furthermore, the functions of one component in the embodiment may be distributed as a plurality of components, or the functions of a plurality of components may be integrated into one component. Further, at least a part of the configuration of the above embodiment may be replaced with a known configuration having the same function. Moreover, you may abbreviate | omit a part of structure of the said embodiment. In addition, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of the other embodiment. In addition, all the aspects included in the technical idea specified from the wording described in the claims are embodiments of the present invention.

  (4) In addition to the terminal device and the vehicle control device described above, the present invention is implemented in various forms such as a program for causing the terminal device and the vehicle control device to function as a computer, a medium storing the program, and a vehicle control method. It can also be realized.

  DESCRIPTION OF SYMBOLS 1 ... Terminal device, 13 ... Display part, 17 ... Communication part, 19 ... Sound output part, 21 ... Control part, 33 ... Vehicle control apparatus, 23 ... Memory | storage part, 25 ... Key, 49 ... Engine control part, 51 ... Brake Control unit

Claims (3)

An input state detection unit that detects an input state of the character information that changes depending on a state of life activity of the operator when character information is input by the operator;
An operator state determination unit that compares the input state of the character information detected by the input state detection unit with a reference input state to determine the state of the biological activity of the operator;
A biological state recognition apparatus comprising: The biological state recognition apparatus according to claim 1,
The input state detection unit detects a speed at which the character information is input,
The operator state determination unit determines the state of the biological activity of the operator by comparing the speed at which the character information is input with the speed at which the character information serving as a reference is input. Biological state recognition device. The biological state recognition apparatus according to claim 1 or 2,
The input state detection unit detects a ratio of incorrect character information among the input character information,
The operator state determination unit determines the state of the biological activity of the operator by comparing the ratio of the character information input incorrectly and the ratio of the character information input incorrectly as a reference. The biological state recognition apparatus characterized by the above-mentioned.