JPH06339474A - Detecting device for human mental bio-signal - Google Patents

Abstract

PURPOSE:To visualize the degree of concentration by providing an infrared sensor for detecting weak infrared rays emitted from human bodies, correcting an output of the sensor according to outside air temperature after amplification, taking an a.c. component from the corrected output, analyzing its frequency, and displaying the result in a display device. CONSTITUTION:An infrared sensor 2 such as a thermopile detector is provided for detecting a.c. signals of about 10Hz or less which are included in weak infrared rays emitted from human bodies and which are affected by the potential abilities of humans and the state of mind, and a signal output from the sensor 2 is amplified by a preamplifier 3 and input to a temperature/waveform correcting circuit 5. Any temperature error included in an output of the preamplifier 3 is compensated according to outside air temperature data obtained by a temperature sensor 4, and the output corrected is input to a level shift circuit 6, which then removes a d.c. component from the output to capture 'ki' that is derived from human mental activity. The a.c. output obtained is fed via a main amplifier 7 and a BPF 8 to a display device 9, which in turn displays the mental activity.

Description

Detailed Description of the Invention

[0001]

[Industrial field of application] The present invention detects the mental signals of human beings and recognizes the mental concentration of humans, which is what is called "Qi" in China, to improve the mental strength. Further, the present invention relates to a human mental biological signal detecting device which enhances the enhancement of physical ability and discovers human potential.

[0002]

2. Description of the Related Art Conventionally, the following devices have been known as devices for detecting a human biological signal.

(1) First Prior Art: Electroencephalograph An electroencephalograph is a measuring instrument for detecting an electroencephalogram, which is a spontaneous potential fluctuation generated from the cerebral cortex. The measurement method is such that when the subject's sensory organs and sounds are given, or when the subject is given hyperventilation or drug administration, the change in the cerebral cortical potential changes compared with the normal time. It is to observe whether there is. From these measurement results, it is possible to judge the pathological condition such as determination of the site of tencan, brain tumor, and brain injury. Two types of electrodes, a dish electrode and a needle electrode shown in FIGS. 3 to 4, are generally used as electrodes provided on the brain skin for performing this measurement. As shown in FIG. 3, the plate electrode 30 is made of silver or a plate-shaped electrode of a sampler, and a scalp 3 is formed through a paste 31.
It is to be attached to 2 using bandages and bandages. As shown in FIG. 4, the needle electrode 33 is made by inserting stainless steel or a needle-shaped sampler into the scalp 32. Both of them are currently most frequently used for EEG measurement.

(2) Second prior art: electromyography When a muscle contracts due to excitement from the nervous system, the electromyography amplifies the action potential generated with the contraction derived from outside the cell. It is a device that records on a myoelectricity meter. As the measurement method, the subject is made to have various muscle states, and a general electromyographic method for observing changes in the number of electromyographic waveforms, amplitudes, and spike waves in each state, and electrical stimulation are given to the muscles. , There is a evoked electromyogram to observe the electromyogram induced by it.
The electrodes provided on the skin for performing this measurement are generally shown in FIG.
There are needle electrodes and surface electrodes shown in FIG. Needle electrode 3
4 is 50-100 in the hypodermic needle 35 as shown in FIG.
A μ enamel copper wire 36 is enclosed and its tip is exposed. This needle electrode is an electrode that is used by inserting even the muscle fiber group to be observed. As shown in FIG. 6, the surface electrode 36 is an electrode used by attaching and fixing the dish-shaped electrode 37 to the skin 39 via the paste 38. Both are the most commonly used for EMG production.

[0005]

Objects of the present invention: Problems to be Solved The above-mentioned respective prior arts have been used as a device for measuring an electroencephalogram and recording an electromyogram, but they have the following problems.

The electroencephalograph, which is the first prior art, requires a device to be attached to the brain skin of the subject at the time of measurement, so that the subject is shaken to some extent during the measurement, and There is a problem that an error occurs in the measurement result due to the disturbance of the electroencephalogram coming from the mental agitation. In particular, the method of inserting the needle electrode into the subcutaneous part of the brain causes particularly severe mental agitation of the subject, and also suffers considerable physical damage. Moreover, since the contact resistance between the electrode and the skin is considerably large, it is easy to allow the AC hum to mix due to electrostatic induction from the commercial AC wire, and as a result, the AC hum is superimposed on the signal data of the subject, There is an issue that makes the analysis of measurement results difficult.

Also in the second prior art EMG,
Since it is used in close contact with the human body, it has problems similar to those of the electroencephalograph in that it causes psychological upset and causes measurement errors. Furthermore, conventional devices for detecting biomedical signals, not limited to electroencephalographs and electromyograms, are limited to detecting the physical biomedical signals of the human body, and cannot detect human psychological biomedical signals. .

It is an object of the present invention to provide a device for eliminating the problems and drawbacks described above and detecting a biomedical signal in psychosomatic medicine which is different from the biomedical signal in physical medicine.

[0009]

Structure of the present invention: In order to achieve the above-mentioned object, the present invention detects an alternating current component superposed in a weak far infrared ray, and in particular, an alternating current signal of 10 [Hz] or less is detected. A device for detecting an internal signal of the human body, which should be called a mental wave, is constructed. That is, an infrared sensor detector,
A preamplifier that amplifies the output of the infrared sensor, a temperature sensor that is installed near the infrared sensor and that detects the ambient temperature in the vicinity, and a temperature that inputs the temperature data detected by the temperature sensor and corrects the output of the preamplifier. A waveform correction circuit, a level shift circuit that extracts an AC component from the output of the correction circuit, a main amplifier that amplifies the AC output of the level shift circuit, a frequency analysis device that frequency-analyzes the output of the main amplifier, A human mental biological signal detecting device comprising a display device for displaying the output of the frequency analyzing device was constructed, and the low frequency biological signal was extracted and amplified so that the degree of mental concentration could be understood. The infrared sensor is a thermal thin-film thermopile detector that can be used at room temperature and can follow the frequency response, and an infrared sensor that uses germanium or indium antimonite used at liquid nitrogen temperature. . Further, regarding the AC analyzer, an FFT (Fast Fourier Transform) device that analyzes the AC output for each of a large number of different frequencies and displays what kind of signal is included, or a bandpass filter that passes only an arbitrary frequency component Is configured to use.

[0010]

It has been found that by increasing the concentration of the human mind, the autonomic nerve can be controlled. By doing so, it is possible to control the heart rate, that is, to adjust pulsation and increase blood flow, for example. become able to. At this time, the intensity of far infrared rays emitted from the hand increases, and the intensity signal fluctuates depending on the mental state of the living body, but the component of this alternating current component increases due to the degree of mental concentration. In particular, "Qigong," which is said in China, uses this degree of mental concentration, and it means that the Qi emitted from the hand is detected by the sensor of the far-infrared detector. Then, the detected output is a level shift after the correction by the output of the temperature sensor placed near the detector after passing the preamplifier and the waveform correction excluding the miscellaneous component, and the AC indicating the mental strength. Take out only.
After this is further amplified, it acts to visually and audibly display a specific frequency related to mental power on a display device, which enables so-called "ki" intensity expression.

[0011]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings.

The weak far-infrared rays emitted from the human body contain a slight amount of alternating current, of which 10 [H]
z] and the following AC signals are indispensable for observing human potential and human psychological state. As a device for detecting this signal, FIG. 1 is a first circuit configuration diagram 1 of the human mental biological signal detecting device of the present invention. An infrared sensor detector for detecting weak far infrared rays from the human body (especially, here, a thermopile detector 2 which can be used in a wide wavelength range and can detect an AC component of 10 [Hz] or less at room temperature operation is used. ) And a preamplifier 3 is connected to the output side of the thin film thermopile detector 2 for amplifying the output of the sensor. Next, the temperature / waveform correction circuit 5 is connected to the output side of the preamplifier 3 as means for correcting the temperature error and the waveform of the thin film thermopile detector 2 with respect to the outside air temperature. This temperature / waveform correction circuit 5
The temperature error of the output of the preamplifier 3 is corrected based on the temperature data obtained by the temperature sensor 4. Next, a level shift circuit 6 for removing a DC component is taken out as a means for extracting a slight AC component contained in the far infrared rays.
Is attached to the output side of the temperature / waveform correction circuit 5. The alternating current obtained here is to encourage the fluctuation of "Qi" generated by the activity of the human spirit, and although it is amplified once by the preamplifier 3, it can be obtained only slightly. Since it is only a weaker one in the far infrared ray, the main amplifier 7 amplifies it again. If you put it directly into the main amplifier without passing through the level shift circuit and amplify it, the main amplifier will be saturated by the direct current component, and by another electronic circuit means, only the AC signal of 10 [Hz] or less will be amplified, And it is difficult to cut the DC component.
Next, among the AC output of the main amplifier 7, especially 10 [H
z] 10 [H] as means for detecting only low frequencies below
z], which is a complicated process of connecting a band-pass filter 8 that passes only the frequency components below the main amplifier 7 to the output side. Finally, as a means for knowing the output of the bandpass filter 8, the display device 9 is set to
To the output of. This display device 9 is 10 [Hz]
As a means of knowing the magnitude of the following alternating current, it may be visible, audible, or both. As described above, a high level of technology has been created because the degree of mental activity can be displayed on the display device.

[0013]

[Embodiment 2] FIG. 2 is a second circuit configuration diagram 11 of the human mental biological signal detecting apparatus of the present invention. The difference between the second circuit configuration diagram 11 and the first circuit configuration diagram 1 of the first embodiment is that an FFT (fast Fourier transform) circuit 10 is used instead of the bandpass filter 8. By using the FFT circuit 10, it is possible to detect only an arbitrary frequency among the frequencies in the alternating current of 10 [Hz] or less, so that more detailed data can be obtained. The preamplifier 3 and the main amplifier 7 are separated from each other for the purpose of amplifying a weaker AC component in the weak far infrared ray with high accuracy. From the above, it can be said that the second embodiment is also a highly accurate technique.

[0014]

[Effect of the present invention]

(1) According to the present invention, the intensity of human mental activity, in other words, the degree of mental concentration, which is originally invisible, is the first display in the world due to technically complicated measurement and circuit processing. It was possible to see and hear, and it was possible to achieve what was previously impossible, which was a truly epoch-making effect. is there.

(2) That is, according to the present invention, the weak AC component in the weak far infrared rays emitted by the human body is particularly 10 [Hz].
By detecting the following signals, it has become possible to grasp the human mental strength.

(3) By dividing the amplifying means into the preamplifier and the main amplifier, the weaker AC component in the weak far infrared ray can be selected and amplified with high accuracy.

(4) The device of the present invention is completely different from the device of the prior art and is of non-contact type with respect to the subject, so that the subject is hardly swayed mentally. There are few. The device of the present invention is as described above.
It is possible to obtain an epoch-making effect remarkably different from the prior art.

[Brief description of drawings]

FIG. 1 is a first circuit configuration diagram of a human mental biological signal detecting device of the present invention.

FIG. 2 is a second circuit configuration diagram of the human mental biological signal detecting device of the present invention.

FIG. 3 is a diagram showing an example of how the plate electrode of the electroencephalograph of the prior art (1) is attached to a human body.

FIG. 4 is a diagram showing an example of attaching a needle electrode of an electroencephalograph according to the related art (1) to a human body.

FIG. 5 is a diagram showing an example of attachment of a needle electrode of the electromyography of the related art (2) to a human body.

FIG. 6 is a diagram showing an example of attachment of a surface electrode of a conventional electromyography device (2) to a human body.

[Explanation of symbols]

1 First circuit configuration diagram of human mental biological signal detection device 2 Thin film type thermopile detector 3 Preamplifier 4 Temperature sensor 5 Temperature / waveform correction circuit 6 Level shift circuit 7 Main amplifier 8 Bandpass filter 9 Display device 10 FFT circuit 11 Second circuit configuration diagram of human mental biological signal detection device

Claims (4)

[Claims] 1. An infrared sensor detector, a preamplifier for amplifying the output of the infrared sensor detector, a temperature sensor installed near the infrared sensor detector to detect an outside air temperature, and a temperature detected by the temperature sensor. A temperature / waveform correction circuit for inputting data and correcting the output of the preamplifier for temperature and waveform, a level shift circuit for extracting an AC component from the output of the correction circuit, and a main amplifier for amplifying the AC output of the level shift circuit And a frequency analysis device for frequency-analyzing the output of the main amplifier, and a display device for displaying the output of the frequency analysis device. 2. The human mental biological signal detecting apparatus according to claim 1, wherein the infrared sensor detector is any one of a thin-film thermopile detector, a germanium infrared detector, and an indium antimonite infrared detector. . 3. The human mental biological signal detecting device according to claim 1, wherein the frequency analysis device is a fast Fourier transform device or a bandpass filter of an arbitrary frequency. 4. The human mental biological signal detecting device according to claim 1, wherein the display device has a visual and / or audible display means.