CN105749402A - Deep hypnosis system and method based on feedback mechanism - Google Patents

Abstract

The invention discloses a deep hypnosis system and method based on a feedback mechanism. First, the original brain wave signal detected by the electroencephalograph is obtained, and after processing, it is transmitted to the brain wave analysis module to identify the sleep state, and the brain wave control module generates and updates immediately. The hypnotic sound with the same main frequency distribution of brain waves in the next sleep state is synthesized with the soothing music of the SD card in the audio processing module, and the synthesized tracks and sleep state are transmitted to the LCD liquid crystal display. button to realize function selection, and at the same time, the synthesized music is transmitted to the modified playback module for playback, and according to the principle of biological mutual induction, the insomniac is guided to enter a deep sleep quickly, and when the deep sleep is reached, the system stops functioning for the insomniac, allowing the insomniac to help himself of the sleep cycle.

Description

A deep hypnosis system and method based on feedback mechanism

【Technical field】

The invention relates to a deep hypnosis system and method based on a feedback mechanism.

【Background technique】

With the development of society, changes in living and working habits brought about by modernization and increasing pressure, insomnia is becoming more and more common, and the number of insomniacs is increasing year by year. Insomnia not only leads to a decline in the quality of life, decline in academic performance, memory loss, and low work efficiency, but also poses a threat to physical health and life safety. Therefore, the treatment of insomnia has gradually received more and more attention.

For insomnia, the current main treatment methods are divided into traditional therapy and new physical therapy. Traditional therapy includes drug therapy, psychotherapy and traditional Chinese medicine therapy, and new physical therapy includes electromagnetic stimulation-induced sleep therapy, magnetic stimulation therapy and sound therapy. The shortcomings of traditional therapy are gradually exposed during its development process. For example, drug therapy is prone to tolerance, periodic reactions and side effects; psychological therapy is affected by many unstable factors and can only play a supporting role; traditional Chinese medicine therapy has a long treatment cycle and slow results , so no side effects, safe, long-term effective new physical therapy has gradually gained people's favor, but this method is still in the early stages of development, the technology is not yet mature.

【Content of invention】

The purpose of the present invention is to solve the above problems, and provide a deep hypnosis system and method based on a feedback mechanism.

In order to achieve the above object, the present invention adopts the following technical solutions to achieve:

A deep hypnosis system based on feedback mechanism, including a controller, brain wave acquisition module, audio processing module and playback module;

The controller includes a main control module and a human-computer interaction module. The main control module is composed of a brain wave control module and a brain wave analysis module. The brain wave analysis module uses the time-frequency analysis method to identify sleep patterns from the brain wave signals transmitted by the brain wave acquisition module. state; the brainwave control module is used to generate hypnotic sounds for entering the next sleep state, synthesize with soothing music, and realize communication and control with other modules;

The brain wave acquisition module is used to obtain the original brain wave signal, process the original brain wave signal, and then transmit it to the brain wave analysis module for sleep state identification;

The human-computer interaction module includes an LCD liquid crystal display for displaying synthesized tracks and sleep status, and keys for realizing synthesized music playback, termination and switching functions;

The audio processing module is used to store the main control chip to generate hypnotic sound, soothing music and synthesized music, and realize the transmission of synthesized music to the playback module;

The playback module is used to realize synthetic music playback, and finally guide the insomniac into a deep sleep state.

The further improvement of the present invention is:

The audio processing module stores hypnotic sounds, soothing music and synthesized music through the SD card.

Both the electroencephalogram analysis module and the electroencephalogram control module use the same DSP or FPGA.

A deep hypnosis method based on a feedback mechanism, comprising the following steps:

Taking the insomniac's brain wave signal obtained by the electroencephalograph as the feedback input, the brain wave analysis module identifies the sleep state through the time-frequency analysis method, and at the same time, the next sleep state is used as the control given amount to implement the control of the sleep state; the brain wave control The module controls the sound playing module to play the hypnotic sound that makes the insomniac enter the next sleep state, and the hypnotic sound acts on the insomniac by using the principle of biological mutual induction, so that the insomniac enters the target sleep state; when the brain wave analysis module detects the sleep state of the insomniac After the change occurs, the next sleep state is used as the control given amount, and the control of the sleep state is implemented until the insomniac enters a deep sleep state, and the system stops acting on the insomniac, allowing it to perform a sleep cycle by itself.

Compared with the prior art, the present invention has the following beneficial effects:

The present invention adopts the feedback mechanism in the automatic control principle to continuously identify the sleep state, so that the sleep state is continuously approaching deep sleep until it is recognized as a deep sleep state, solves the problem of low sleep efficiency for insomniacs, and realizes no side effects, safety, and long-term effective hypnotic effect ; The present invention utilizes brain waves to identify sleep states, because the distribution of the main frequency bands of the time-spectrum of brain waves can directly reflect the sleep state, so the accuracy of identifying sleep states is high; Long-term playing alone causes auditory fatigue, and the concept of sound capsules is proposed to wrap hypnotic sounds in soothing music to achieve a pleasant and hypnotic playback effect; this invention can not only quickly guide patients into deep sleep, but also lay a solid foundation for mass production a good foundation.

【Description of drawings】

Fig. 1 is the action schematic diagram of deep hypnosis system;

Fig. 2 is the schematic diagram of sleep mechanism;

Figure 3 is a schematic diagram of the feedback mechanism.

Among them, S1 is the state of falling asleep; S2 is the state of light sleep; S3 is the state of moderate and deep sleep; S4 is the state of deep sleep; REM is the period of slow eye movement sleep; NREM is the period of rapid eye movement.

【detailed description】

The present invention is described in further detail below in conjunction with accompanying drawing:

Referring to Fig. 1, the present invention is based on the deep hypnosis system of the feedback mechanism in the automatic control principle. Its system structure is characterized by a closed-loop system that takes the sleep state of the human brain as the control object, specifically including the controller (main control module, human-computer interaction module), sensor (brain wave acquisition module) and actuator (playback module, audio processing module) , and the sleep state of the human brain constitute a complete closed-loop system structure.

Identify the sleep state: the main control module uses the brain wave signal, through the time-frequency analysis of the brain wave signal, and recognizes the sleep state according to the difference in the main frequency band distribution of the time-spectrum in each sleep period.

The deep hypnosis system puts forward the concept of sound capsules when using sound hypnosis. In order to avoid the hypnotic sound playback effect being noisy and long-term alone playback causing auditory fatigue, the concept of capsules is used to wrap the hypnotic sound in soothing music to achieve pleasant and hypnotic playback. Effect.

Another hypnotic feature of the present invention resides in the conception of silent music. Since the sound frequency range that can be heard by humans is 20Hz-20KHz, it cannot completely cover the brain wave frequency (1Hz-30Hz) in the sleep state of the human brain, especially the main frequency band (1Hz-8Hz). To this end, the frequency bandwidth is expanded by modifying the power amplifier and customizing the speakers, so as to realize the vibration playback effect of the low-frequency signal-hypnotic sound.

The specific structural principle:

The invention includes a closed-loop system structure composed of a brain wave acquisition module, a main control module, an audio processing module, a human-computer interaction module and a playback module. The brain wave acquisition module is used for the electroencephalograph to obtain the original brain wave signal, and after the signal is processed, it is transmitted to the brain wave analysis module for sleep state identification; the main control module includes the brain wave control module and the brain wave analysis module, and the main control module takes the main The control chip is the core. The electroencephalogram analysis module identifies the sleep state through the time-frequency analysis method for the electroencephalogram signal transmitted by the electroencephalogram acquisition module. The brainwave control module is used to generate hypnotic sounds for entering the next sleep state, synthesize with soothing music, communicate and control with other modules, etc.; the audio processing module includes an SD card, which is mainly used to store data generated by the main control chip with a large amount. Hypnotic sound, soothing music and synthesized music, realize the transmission of synthesized music to the playback module; the human-computer interaction module includes an LCD display for displaying synthesized tracks and sleep status, and buttons for realizing the functions of playing, terminating, and switching synthesized music; In order to achieve the hypnotic sound playback effect mainly distributed in the low frequency band, the module transforms the power amplifier and customizes the speakers to realize the synthetic music playback, and finally guides the insomniac into a deep sleep state.

The present invention is a feedback system, and according to the current sleep state, the brainwave control module can timely generate hypnotic sound to guide the human body into a deeper sleep state. At the same time, the concept of sound capsules is proposed, that is, in order to avoid the noisy hypnotic sound playing effect and the auditory fatigue caused by long-term single playing, with the help of the concept of capsules, it is wrapped in soothing music to achieve a pleasant and hypnotic playing effect. Use the brain wave signal to identify the sleep state, and identify the sleep state through the time-frequency analysis of the brain wave signal.

Hypnosis principle of the present invention:

Referring to Fig. 2, a schematic diagram of the sleep mechanism of the present invention, a complete sleep cycle includes wakefulness period, rapid eye movement period NREM and slow eye movement sleep period REM; wherein the rapid eye movement period NREM is divided into sleep state S1, sleep state according to sleep from shallow to deep There are four periods of light sleep state S2, medium and deep sleep state S3, and deep sleep state S4. According to the depth of the sleep cycle, the sleep cycle is divided into three types: light sleep, moderate sleep, and deep sleep cycle. The method for improving the sleep quality of the present invention is to guide the insomniac to enter the deep sleep cycle as much as possible by synthesizing music under the guidance of the principle of biological mutual induction.

Referring to FIG. 3 , the schematic diagram of the feedback mechanism of the present invention is interpreted by taking the falling asleep state S1 as an example. Assuming that the brain wave analysis module identifies the sleep state S1 through time-frequency analysis, the brain wave control module generates and controls the sound playback module to broadcast the hypnotic sound that makes the insomniac enter the light sleep state S2, and the hypnotic sound acts on the For insomniacs, let the insomniacs enter the target sleep state—light sleep state S2; when the brain wave analysis module detects that the sleep state of the insomniac has changed, the next sleep state—the middle and deep sleep state S3 is used as the control given amount to implement sleep State control...until the insomniac enters the deep sleep state S4. When it is identified that the patient is in the deep sleep state S4, the system stops acting on the patient, allowing the patient to automatically enter the sleep cycle.

1 and 3 relate to the principle of the present invention—the principle of biological mutual induction. The principle of biological mutual induction means that the human brain can feel the influence of the external environment, thereby changing its own state. The process of using the principle of biological mutual induction in the present invention makes the brain feel the influence of hypnotic sounds, thereby changing the sleep state of insomniacs.

The invention adopts a feedback mechanism to not only improve the sleep quality, but also observe the sleep state at any time through the LCD liquid crystal display. Because the hypnotic effect of the present invention is safe, has no side effects, and is effective for a long time, and uses the concept of capsules to synthesize and play hypnotic sounds and soothing music, the effect is pleasant and hypnotic, so it has better cost performance than other forms of treating insomnia.

The above content is only to illustrate the technical ideas of the present invention, and cannot limit the protection scope of the present invention. Any changes made on the basis of the technical solutions according to the technical ideas proposed in the present invention shall fall within the scope of the claims of the present invention. within the scope of protection.

Claims (4)

1. the degree of depth hypnosis system based on feedback mechanism, it is characterised in that include controller, E.E.G acquisition module, audio processing modules and playing module；

Controller includes main control module and human-computer interaction module, and main control module is controlled module by E.E.G and E.E.G analysis module is constituted, when the eeg signal that the transmission of E.E.G acquisition module obtains is passed through by E.E.G analysis module-and frequency analysis method identification sleep state；E.E.G control module is used for being generated into next dormant hypnosis sound and realizes communicating and controlling with other modules with music synthesis of releiving；

E.E.G acquisition module, is used for obtaining original eeg signal, and original eeg signal is processed, and is transmitted further to E.E.G analysis module and carries out sleep state identification；

Human-computer interaction module includes display synthesis song and dormant LCD liquid crystal display screen and for realizing the button of composite music broadcasting, termination and handoff functionality；

Audio processing modules is used for storing main control chip and generates hypnosis sound, music of releiving and composite music, it is achieved composite music is transferred to playing module；

Playing module is used for realizing composite music and plays, final guiding insomniac's penetration depth sleep state.

2. the degree of depth hypnosis system based on feedback mechanism according to claim 1, it is characterised in that described audio processing modules is by SD card storage hypnosis sound, music of releiving and composite music.

3. the degree of depth hypnosis system based on feedback mechanism according to claim 1, it is characterised in that described E.E.G analysis module and E.E.G control module and all adopt same DSP or FPGA.

4. the degree of depth hypnosis method based on feedback mechanism, it is characterised in that comprise the following steps:

With insomniac's eeg signal of electroencephalograph acquisition for feed back input amount, when E.E.G analysis module passes through-frequency analysis method identification sleep state, simultaneously with next sleep state for controlling specified rate, implement dormant control；E.E.G controls module control sound broadcasting module broadcast makes insomniac enter next dormant hypnosis sound, utilizes biological this hypnosis sound of mutual inductance principle to act on insomniac, makes insomniac's target approach sleep state；After E.E.G analysis module detects that insomniac's sleep state changes, with next sleep state for controlling specified rate, implementing dormant control, until insomniac enters deep sleep, system fails in insomniac so that it is self-service carry out sleep cycle.