JP3048918B2 - Concentration estimation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a degree-of-concentration estimating apparatus for estimating and measuring whether or not a living body represented by a person is mainly concentrated on a thing.

[0002]

2. Description of the Related Art In general, when a human being concentrates on things as a living body, various parts such as a central nervous system, a peripheral nerve, a circulatory nerve, and a motor nerve act as its nervous system. The activities of these various nerves can be individually measured as various biological information.

As a technique for measuring the activity of the nervous system, there is, for example, an audio output device having an automatic audio adjustment function disclosed in Japanese Patent Application Laid-Open No. 4-335399. Here, a human body detection sensor is provided for a human, so that when a human body is detected, the volume is adjusted to be small so that sound can be heard at a suitable volume according to the distance between the human and the device. Further, as a human body detection sensor, for example, a technique using an electrode for an electrocardiogram, a cuff for measuring a blood pressure, or the like when a human is a patient is exemplified.

[0004]

In the case of the above-described audio output device, a plurality of pieces of biological information are measured at the same time. However, since these pieces of biological information are activated not only during concentration but also due to other factors, human voice information is measured. It is difficult to determine whether or not humans are concentrated from one nervous system activity without changing the mental state.

In general, in order to estimate whether or not a person is concentrated on things, objective evaluation using biological information is necessary in order to prevent the concentration of the human in the subjective evaluation. It is considered difficult to estimate the degree of concentration in association with the degree of concentration, and at present, an apparatus capable of accurately estimating the degree of concentration of a human (living body) has not been developed.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a technical problem thereof is that a concentration degree estimating apparatus capable of accurately estimating and measuring the concentration degree of a living body to be measured represented by a human. Is to provide.

[0007]

According to the present invention, a plurality of biological information measuring units for measuring a plurality of biological information from activities of a plurality of nervous systems of a living body to be measured to obtain measured biological information are provided. A concentration rule setting unit that sets concentration rule setting information that associates an activity state and a concentration state in a plurality of nervous systems; and estimates a concentration of a living body to be measured from measured biometric information and concentration rule setting information. A degree of concentration estimating device including a degree of concentration estimating unit that obtains degree of concentration estimation information and a degree of concentration result display unit that displays the degree of concentration estimation information as a result of the degree of concentration of the living body to be measured is obtained.

Further, according to the present invention, in the above-mentioned concentration degree estimating apparatus, the concentration degree rule setting section estimates a change in the internal state of the living body to be measured in accordance with a plurality of pieces of biological information, and A concentration estimation device that automatically sets concentration rule setting information is obtained.

Further, according to the present invention, in any one of the above-described concentration degree estimating apparatuses, the plurality of biological information measuring units include the measured biological information as a plurality of nervous systems of the central nervous system, peripheral nerves, circulating nerves, and somatic nerves. The degree of concentration estimation unit obtains the degree of concentration estimation information from the activity index relating to the nerve information.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a basic configuration of a concentration estimation apparatus according to one embodiment of the present invention. The concentration degree estimating apparatus includes a plurality of biological information measuring units 2 that measure a plurality of (various) pieces of biological information 101 from a plurality of nervous system activities of a measured living body (human) 1 to obtain measured biological information 102; A concentration rule setting unit 3 for setting concentration rule setting information 103 in which activity states and concentration states in a plurality of nervous systems are associated with the information 102;
And a concentration estimating unit 4 for estimating the degree of concentration of the living body 1 to be measured from the concentration degree rule setting information 103 to obtain concentration degree estimation information 104, and displaying the degree of concentration estimation information 104 as a result of the degree of concentration of the living body to be measured. And five parts of concentration result display.

Here, the concentration rule setting unit 3 estimates a change in the internal state of the living body to be measured in accordance with a plurality of pieces of biological information, and applies the concentration rule setting information 10 to the measured biological information 102.
Set 3 automatically. The multiple biological information measuring unit 2 obtains the measured biological information 102 as a plurality of nervous systems from nerve information relating to two or more of the central nervous system, peripheral nerve, circulatory nerve, and somatic nerve. Further, the concentration estimation section 4 estimates the concentration estimation information 104 from the activity index related to the nerve information.

On the other hand, the nerve information obtained by the multiple biological information measuring unit 2 as the multiple biological information 101 uses brain waves for the central nervous system, and fingertip pulse waves, earlobe pulse waves, and skin temperature (hereinafter simply referred to as skin temperature) for the peripheral nerves. Circulating nerves use heart rate, respiratory volume, etc., and somatic nerves use other factors such as gaze, movement, etc. (eg, skin resistance, blinks, pupils, gazing points, gazing times, etc.) Use case. For this reason, the plural biological information measuring units 2 include an amplifier that amplifies and measures a biological signal from an electrode attached to the living body (human) 1 to be measured, and a line-of-sight movement using a light emitting element or a light receiving element in a non-contact manner. A visual device that detects the temperature of the skin and gaze time, a temperature detection device that has a temperature sensor and can detect the skin temperature remotely without contact, and an operation measurement device that measures the operation of the position sensor and detects position fluctuation. It may be selected and used.

FIG. 2 is a functional schematic diagram showing an example of a system configuration relating to the concentration estimation apparatus. In the system configuration here, the motion measuring device 2a described above and the eye camera 2a as a visual device are provided in the multiple biological information measuring unit 2A.
2, and a biological amplifier 2a3 as an amplifier,
The concentration rule setting unit 3 and the concentration estimating unit 4 are integrally formed by an A / D converter and a personal computer (PC). A position sensor for detecting a position change is provided on the head of the living body (human) 1 to be measured, the head position is measured, and the result is sent to the motion measuring device 2a1. ) Measurement glasses are put on the first eye, and the result of gaze and line of sight is sent to the eye camera 2a2. Further, the plurality of biological information 101 sent to the biological amplifier 2a3 include brain waves, skin temperatures, skin resistance values, heartbeats, respirations, blinks, pulse waves (fingertip pulse waves, fixation points,
And gaze time), and pupils.

The plurality of biometric information measuring units 2A transmit the transmitted information as the measured biometric information 102 to the concentration rule setting unit 3 and the concentration estimating unit 4 and take them into the personal computer, thereby setting the concentration rule. After the information 103 is set correspondingly, the degree of concentration is estimated, and the obtained degree of concentration estimation information 104 is displayed on the degree-of-concentration result display unit 5 as a result of the degree of concentration.

By the way, when the plurality of biological information 101 are elements such as brain wave, skin temperature, skin resistance value, heartbeat, respiration, blink, fingertip pulse wave, attention point, attention time, and head position fluctuation,
Regarding the concentration level rule setting information 103, if the degree of concentration is high, 1) the response of the electroencephalogram to the specific object to be concentrated clearly appears, 2) the skin temperature decreases to a level that does not decrease too much, and 3) the skin resistance value increases. Increase to an extent that is not too much,
4) Heartbeat interval time fluctuates for a particular subject to concentrate on 5) Deeper breathing depth 6) Longer breathing interval 7) Longer blink interval 8) Amplitude of fingertip pulse wave Is not too small, 9) the gaze time is long, 1
It may be defined as satisfying some or all of the items such as 0) the number of times of gaze at a specific range is large, and 11) the distance between the head position and the focused object is short. As a result, the concentration estimation section 4 measures the living body (human) based on the measured biological information 102 and the concentration rule setting information 103.
By estimating the degree of concentration, the degree of concentration estimation information 104 can be obtained.

FIG. 3 is a functional test diagram showing another example of a system configuration relating to the concentration estimation device. The system configuration here is a simplification of the configuration shown in FIG. 2 above, in which a plurality of biological information measuring units 2B include an eye camera 2b1 as a visual device and a biological amplifier 2b2 as an amplifier.
A point that the subject to be measured (human) 1 is put on measurement glasses and only the result of the line of sight is sent to the eye camera 2b1, and a living body amplifier 2b2 has a plurality of pieces of biological information. The difference is that only a pulse wave (finger pulse wave, gazing point, and gazing time) is transmitted as 101.

FIG. 4 shows the concentration rule setting information 1 in the concentration rule setting unit 3 when the fingertip pulse wave and the gazing point are used for the plural biological information measuring units 2B in this system configuration.
03 is an example. In such a case, if the degree of concentration is high, 1) the range of gaze is narrow, that is, attention is paid to the screen without distraction, 2) the above-mentioned range of gaze is viewed relatively long, 3) fingertips It may be defined as satisfying all the items such as the degree of tension estimated by the pulse wave is neither too high nor too low.

Therefore, the degree of concentration is output in five stages based on the amplitude of the fingertip pulse wave, the line-of-sight movement distance per unit time, and the gaze time (gaze stationary time) for each gaze range in accordance with such a concentration degree rule. Suppose you do. More specifically, the gaze movement distance per unit time of the user is measured, and it is determined whether or not the gaze movement is within a set range. And determine such a gaze time in less than 1 second, less than 3 seconds, less than 5 seconds, 10
The gaze level was divided into five stages of less than 10 seconds and 10 seconds or more.

In addition, the user's degree of tension is classified into 15 levels based on the amplitude of the fingertip pulse wave representing the tension state, and the degree of tension ranges from 6 to 10 based on the degree of tension and the gaze level. That is, when the degree of tension is moderate, the degree of concentration = the gaze level, and when the degree of tension is not moderate, the degree of concentration = 3−3.
(The absolute value of the value obtained by subtracting 3 from the gaze level), and the degree of concentration was determined.

FIG. 5 shows a display example of the concentration degree obtained by the concentration degree display section 5 when the concentration degree is obtained, and FIG. 6 shows a display example of the concentration degree result display section 5 when the concentration state is not concentrated. It is.

In each of the figures, the size of the circle at the upper left in the figure indicates the degree of concentration, and “<” in the frame expressing the degree of tension indicates the direction in which the degree of tension changes, that is, the tension in the figure. This indicates that the degree is decreasing. It is also possible to give a warning to the living body to be measured (human) 1 or the experimenter by changing the display color except when the degree of tension is appropriate and the degree of concentration is high.

[0023]

As described above, according to the concentration estimating apparatus of the present invention, a plurality of living body information is measured from a living body (human) to be measured, in particular, a plurality of living body information is measured from activities of a plurality of nervous systems. In addition to obtaining the measured biometric information, setting the concentration level rule setting information in which the activity states and the concentration states in a plurality of nervous systems are associated with the measured biometric information, and measuring based on the measured biometric information and the concentration level rule setting information. Living body (human)
Since the degree of concentration is estimated and the degree of concentration estimation information is obtained, the degree of concentration of the measured living body (human) on things can be estimated and displayed in real time. As a result, for example, improvement of educational effect using a simulator or the like and application to training such as rehabilitation are effective.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a concentration estimation apparatus according to an embodiment of the present invention.

FIG. 2 is a functional schematic diagram showing an example of a system configuration related to the concentration estimation device shown in FIG. 1;

FIG. 3 is a functional schematic diagram showing another example of the system configuration relating to the degree of concentration estimation device shown in FIG. 1;

FIG. 4 shows a specific example of concentration rule setting information in a concentration rule setting unit provided in the system configuration shown in FIG. 3;

FIG. 5 shows a display example at the time of concentration on a concentration degree result display unit provided in the system configuration shown in FIG. 3;

FIG. 6 shows a display example at the time of non-concentration in the concentration result display section provided in the system configuration shown in FIG. 3;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 living body to be measured (human) 2, 2A, 2B multiple biological information measuring unit 2a1 motion measuring device 2a2, 2b1 eye camera 2a3, 2b2 biological amplifier 3 concentration rule setting unit 4 concentration estimation unit 5 concentration result display unit 101 living body Information 102 Measured biological information 103 Concentration rule setting information 104 Concentration estimation information

Continuation of the front page (56) References JP-A-6-296596 (JP, A) JP-A-7-504833 (JP, A)

Claims (3)

(57) [Claims] A plurality of biological information measuring units that measure a plurality of biological information from activities of a plurality of nervous systems of a living body to be measured to obtain measured biological information; and an activity state in the plurality of nervous systems with respect to the measured biological information. A degree-of-concentration rule setting unit that sets degree-of-concentration rule setting information in association with a state of concentration; and a degree-of-concentration estimation information that estimates the degree of concentration of the living body to be measured from the measured biometric information and the degree of concentration rule setting information. A concentration level estimating apparatus comprising: a concentration level estimating unit to obtain; and a concentration level result display unit that displays the concentration level estimation information as a result of the degree of concentration of the living body to be measured. 2. The concentration degree estimating device according to claim 1, wherein the concentration degree rule setting unit estimates a change in an internal state of the living body to be measured in accordance with the plurality of pieces of biological information and outputs the estimated change to the measured biological information. A concentration level estimating apparatus for automatically setting the concentration level rule setting information. 3. The concentration estimation device according to claim 1, wherein the plurality of biological information measuring units use the measured biological information as the plurality of nervous systems to determine central nervous system, peripheral nerve, circulating nerve, and somatic nerve. A concentration estimating apparatus, which is obtained from nerve information on two or more of them, and wherein the concentration estimating unit estimates the concentration estimation information from an activity index related to the nerve information.