KR101258984B1 - Stress relieving content providing system and method - Google Patents

Abstract

A system and method for providing stress relief content may include determining a stress symptom based on psychological information of a user, determining a stress level based on the biosignal of the user, and primary content corresponding to the determined stress symptom and the degree. Selecting second contents among the first contents based on a rule according to demographic information of the user, and selecting one of the second contents based on a user profile of the user. A method and system for providing stress relief content comprising determining tertiary content and providing the determined tertiary content to the user.

Description

Stress relief content delivery system and method {STRESS RELIEVING CONTENT PROVIDING SYSTEM AND METHOD}

The present invention relates to a content providing system and a method for providing stress relief.

Modern people experience various stressors in their daily lives. If you do not manage the stress on the psychological and physical various symptoms will occur.

These symptoms may be expressed in physiological conditions such as allergies and gastric ulcers, but the symptoms are not so heavy that they require treatment. In addition, there are limitations to the treatment under the supervision of a doctor, such as general oral administration or injection, and there is a concern of side effects when such a drug is used.

Thus, there is a growing demand for content such as devices, devices, and therapies that can assist the public in their daily lives. In general, people have different emotions, so not all users respond to the same content. Therefore, even in the case of serving the same content, it was necessary to provide different types of services according to individual characteristics.

An object of the present invention is to provide a system and method for providing a service more appropriate to stress according to the characteristics of an individual by using information such as biosignal, psychological information, demographic information, and user profile.

In order to solve the above technical problem, a first aspect of the disclosed technology is to determine a stress symptom and a degree based on psychological information and a biosignal of a user, and to select first contents corresponding to the determined stress symptom and a degree. Selecting secondary content among the primary contents based on a rule according to demographic information of the user; tertiary content among the secondary contents based on the user profile of the user It provides a content providing method for stress relief comprising the step of, and providing the determined third content to the user.

The second aspect of the disclosed technology to solve the above technical problem is a stress measuring unit for determining the symptoms and the degree of stress on the basis of psychological information and the bio-signal of the user, the first content corresponding to the determined symptoms and degree of stress A primary content selection unit for selecting, a secondary content selection unit for selecting secondary contents among the primary contents based on a rule according to demographic information of the user, and based on the user profile of the user To provide a content providing system for stress relief comprising a third content selection unit for determining a third content of the second content, and a content providing unit for providing the determined third content to the user There is.

The disclosed technique may have the following effects. It is to be understood, however, that the scope of the disclosed technology is not to be construed as limited thereby, as it is not meant to imply that a particular embodiment should include all of the following effects or only the following effects.

Content recommendation system and method for providing stress relief according to an embodiment provides a more suitable content for stress relief by providing a customized service to the user in consideration of the user's psychological state, physical state and demographic information, user profile It works.

1 is a flowchart illustrating a method for providing stress relief content according to an embodiment of the present invention.
2 is a block diagram illustrating a system for providing stress relief content according to an embodiment of the present invention.
3 is a block diagram illustrating a stress measuring unit of FIG. 2.
4 is a block diagram illustrating a content selecting unit of FIG. 2.

The description of the disclosed technique is merely an example for structural or functional explanation and the scope of the disclosed technology should not be construed as being limited by the embodiments described in the text. That is, the embodiments may be variously modified and may have various forms, and thus the scope of the disclosed technology should be understood to include equivalents capable of realizing the technical idea.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

Singular expressions should be understood to include plural expressions unless the context clearly indicates otherwise, and terms such as "include" or "have" refer to features, numbers, steps, operations, components, parts, or parts thereof described. It is to be understood that the combination is intended to be present, but not to exclude in advance the possibility of the presence or addition of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

Each step may occur differently from the stated order unless the context clearly dictates the specific order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted to be consistent with meaning in the context of the relevant art and can not be construed as having ideal or overly formal meaning unless expressly defined in the present application.

1 is a flowchart schematically illustrating a method for providing stress relief content according to an embodiment of the present invention.

Referring to FIG. 1, in step 105, a content providing system receives an input for user registration information. The user registration information may be a user's ID, name, or contact information. If there is no matching user registration information by searching the user profile storage for the received user registration information, the process proceeds to step 110 of receiving a user profile.

In step 110, the user profile is input to the content providing system. The user profile may include a user's ID, name, contact information, user's gender, date of birth, occupation group, marital status, video content preference, acoustic content preference, aroma content preference, lighting content preference, and content ranking.

In step 115, the content providing system receives psychological information about the stress state of the user. Psychological information can be input through questionnaires written in the self-assessment tool. For example, it may include a question that measures the user's symptoms of stress on cognitive, emotional, and behavioral issues. Another example is measuring stress symptoms such as memory loss, decreased concentration, psychological tension, physiological tension, cognitive symptoms, anxiety, depression, desire displeasure, anger, behavioral symptoms, insomnia, and suicidal thoughts. May contain questions. The symptoms of stress are determined based on the input psychological information.

In step 120, the biometric signal of the user is measured in the content providing system. Biological signals are measured using measurement sensors and devices. For example, the method of measuring the biosignal may include a method of detecting information about the heartbeat by measuring a photopletysmogram (PPG) through a measuring sensor. As another example, a galvanic skin reflex (GSR) along with a PPG measurement, or a pulse measurement, may be used to compensate for or identify errors in the PPG data.

In step 125, the content providing system determines the degree of stress based on the user's biosignal measured in step 120. For example, the degree of stress may be determined using Heart Rate Variability (HRV) according to the peak interval of the PPG waveform.

When the position of the PPG nth peak value is Rn and the heart rate is Tn, HRVn may be represented by Equation 1, and the continuous change in the heart rate is HRV.

Fast Fourier Transform (FFT) of HRV is used to calculate Power Spectrum Density. Generate HRV spectrum based on power spectral density.

 The HRV spectrum is classified into an ultra low frequency component (VLF) appearing at 0.04 Hz or less, a low frequency component (LF) appearing at 0.04 to 0.15 Hz, and a high frequency component (HF) appearing at 0.15 to 0.4 Hz.

Among the frequency bands related to the HRV spectrum, LF represents the activity of the sympathetic nervous system and blood pressure control mechanisms, and HF is known to have information about the activity of the parasympathetic nervous system, especially the vagus nerve and respiratory activity.

That is, when the ratio of the peak value of the LF Peak / HF peak is increased, the sympathetic nerve activity becomes active to improve the user's state because the current user's state is unpleasant or the mood is subsided. Therefore, it can be seen that the peak value of the LF is relatively large. On the other hand, when the ratio of the peak value of the LF Peak / HF peak is small, it indicates that the peak value of the HF is relatively large. That is, since the current state of the user is pleasant or excited, it can be seen that the activity of the parasympathetic nerve is active to stabilize the user. Therefore, the degree of stress can be determined based on the ratio of the peak value of the low frequency component LF to the peak value of the high frequency component HF.

In operation 130, the content providing system selects first contents from among contents classified and set by an expert in advance based on the bio signal of the user and the mental state of the user.

In step 135, the content providing system selects secondary contents based on demographic rules. After generating a rule engine using demographic information, the secondary contents satisfying the conditions set in the generated rule engine are selected. Another example implementation of the rule engine is to create a group based on user profile and demographic information when there are a large number of serviced users, and to create or modify the content ranking by identifying the content with the highest content ranking in the generated group. It may be implemented as a rule engine.

Conditions set in the rule engine may include a user's gender, date of birth, occupation, marital status, music genre preference, scent preference, video preference, and lighting preference. The expert can modify the conditions set in the rule engine.

In step 140, the content providing system selects the third content based on the user profile. The highest content is selected based on the content ranking stored in the user profile. For example, if the rosemary and lavender scents are selected as the secondary contents, if the rosemary scent is -2 and the lavender scent is +1 in the user profile, the lavender scent is selected. If the user profile does not exist or the content ranking is the same, the third content is randomly selected.

In step 145, the content providing system provides at least one service of video, sound, fragrance, and lighting corresponding to the third content. A monitor for displaying an image, a speaker for outputting sound, a lamp for emitting light, and a fragrance injector for injecting fragrance are provided to provide each content to a user based on a user profile.

In step 150, the content providing system inputs whether the content service is continuously provided to the user, and returns to step 120 if the service is not terminated.

In step 160, the content providing system receives a service satisfaction evaluation from the user, and stores the service satisfaction evaluation in the user profile. In addition, the content providing system stores the degree of change of the user's biosignal in the user profile after the service is terminated.

The user profile is modified based on the service satisfaction evaluation stored in the user profile and the degree of biosignal change. For example, in a system where the service satisfaction rating is 5 points from -2 to 2 points, when a user provides rosemary scent and receives a service satisfaction rating score of -2 for rosemary scent, The service profile is stored in the user profile and the user profile is modified by lowering the rosemary-flavored content ranking by -2.

As another example, if the user is provided with the content of rosemary scent, and the stress level of the user is reduced after the service is terminated, the degree of change in the stress level is stored in the user profile. The degree of change in stress can be determined based on the ratio of the peak of the user's LF (Peak) to the peak of the HF (Peak). The user profile can be modified based on the degree of change in the degree of stress on the rosemary scent. As another example, content ranking may be modified in a user profile.

Therefore, as the modification process is repeated, the user's content rank is changed, and a suitable service can be provided to the user.

2 is a diagram schematically illustrating a content providing system according to an exemplary embodiment of the present invention. 2, the stress relief content providing system includes a content selecting unit 200, a content storing unit 220, a user profile storing unit 240, a stress measuring unit 260, and a content providing unit 280. .

The content selecting unit 200 may include a first content selecting unit 420 for selecting first contents corresponding to a stress symptom and a degree of a user, and based on a rule according to demographic information of the user. A second content selection unit 440 for selecting the second contents among the third content selection unit 460 for determining the third content among the second contents based on the user profile of the user. . The content selection unit 200 may be implemented as a single device or a plurality of devices according to the implementation example.

The content storage unit 220 stores contents classified according to the stress symptom and the degree. Content stored in the content storage unit 220 may be set in consultation with an expert. For example, stress symptoms may be classified and stored as cognitive symptoms, emotional symptoms, and behavioral symptoms. As another example, as shown in Table 1, the hierarchies may be classified and stored.

Main Category Subdivision Cognitive symptoms Memory loss Weakened concentration Psychological tension Menstrual tension Emotional symptoms unrest depressed Craving, anger Behavioral symptoms insomnia Suicidal thoughts

The degree of stress can be set to any of the grades 0 to 5, based on the ratio of the peak of LF to peak of HF, and is defined as percent based on percentile. It may be done.

The user profile storage 240 stores a user profile. For example, the user profile includes the user's ID, name, contact information, gender, date of birth, occupation, marital status, music genre preference, scent preference, visual preference, lighting preference, service satisfaction rating, biosignal change, and content ranking. can do.

The user profile stored in the user profile storage 240 may be modified based on a service satisfaction evaluation and a biosignal change degree measured after service termination for the user. As another example, content ranking may be modified in a user profile.

The stress measurer 260 receives a psychological state from the user and measures a user's biosignal. The stress state is determined based on the mental state input from the user. The degree of stress is determined based on the measurement result of the user's biosignal.

The content provider 280 provides at least one service of image, sound, fragrance, and lighting for the content selected by the content selector 200. The content providing unit 280 includes a monitor for displaying an image, a speaker for outputting sound, a fragrance injector for injecting fragrance, and a lamp for providing illumination. For example, when video content is selected, the content is decoded and output to the monitor apparatus. When the acoustic content is selected, the acoustic content is decoded and output through the speaker. When the fragrance content is selected, the fragrance injector injects the fragrance by controlling the type, the injection amount, and the injection time of the fragrance. When the lighting content is selected, the light is emitted by controlling the on / off, color, and brightness of the lamp.

3 is a block diagram illustrating the stress measuring unit 260 of FIG. 2. The stress measurer includes a user input unit 310, a biosignal measurer 330, a stress symptom determiner 350, and a stress degree determiner 370.

The user input unit 310 may receive an input for the user profile and the mental state from the user.

After the user input unit 310 receives the user registration information, the user input unit 310 compares the user profile storage unit 240 and searches whether there is a matching user profile. If the user registration information exists, the user input unit 310 may show a user profile to the user, and may receive a modification of the user profile from the user. If the user registration information does not exist in the user profile storage 240, the user profile is input from the user.

The user input unit 310 may receive a response to the psychological state through a questionnaire form self-assessment written item. For self-assessment tools, items that include cognitive, emotional and behavioral symptoms can be included.

The biosignal measuring unit 330 continuously measures a user's biometric change using a measuring sensor. Measurement sensors include Photopletysmogram (PPG), Galvanic Skin Reflex (GSR), or sensors capable of measuring pulse. For example, a photoelectric pulse wave (PPG) is measured using a measuring sensor and information about the heartbeat is detected from the measured result.

The stress symptom determiner 350 determines the stress symptom based on a response to the psychological symptom input by the user input unit 310. The stress symptom determination unit 350 determines the stress symptom of the user by matching a response to the psychological symptom with a stress symptom set by an expert.

The stress level determiner 370 determines the stress level based on the information measured by the biosignal measuring unit 330. For example, PPG is measured to detect information about the heartbeat, and an HRV spectrum is generated based on the detection result. The degree of stress is determined based on the ratio of the peak value of the low frequency component LF and the peak value of the high frequency component HF based on the generated HRV spectrum. The stress level determiner 370 may use the GSR and the pulse to supplement or confirm the PPG measurement value of the user.

4 is a block diagram illustrating the content selecting unit 200 of FIG. 2. Referring to FIG. 4, the content selector 200 includes a first content selector 420, a second content selector 440, and a third content selector 460. According to the implementation example, the content selection unit 200 may be formed in a single configuration or may be formed in a plurality of configurations.

The first content selecting unit 420 receives stress information on the user's stress symptoms and the degree of stress from the stress measuring unit and selects the first content among the contents stored in the content storage unit based on the stress information.

The second content selecting unit 440 selects second contents among the first contents based on the set rule engine. The rule engine sets rules generated based on demographic information by an expert, and selects corresponding content when the user profile satisfies a condition set in the rule engine. The rule engine may be manually configured by an expert as an example of implementation. Another example implementation is a rule engine that creates a group based on user profile and demographic information, and ranks the content with high satisfaction information in the group and automatically generates or modifies the content ranking. Can be.

Conditions set in the rule engine may include a user's gender, date of birth, occupation, marital status, music genre preference, scent preference, video preference, and lighting preference.

The third content selection unit 460 selects the third content from the second contents based on the user profile. For example, when the rosemary and lavender scents are selected as the secondary contents, when the rosemary scent is -2 and the lavender scent is +1 content ranking in the user profile, the lavender scent which is the highest content is selected. If the user profile does not exist or the content ranking is the same, the third content is selected at random.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

Claims (14)

In the method of providing content to a user in a stress relief content providing system,
Determining a stress symptom based on psychological information of the user;
The degree of stress is determined based on the biosignal of the user, and a heart rate variability (HRV) spectrum is generated from the biosignal so as to generate a peak value and a high frequency component of the low frequency component LF of the HRV spectrum. Determining the stress degree based on a ratio of peaks of HF);
Selecting first contents corresponding to the determined stress symptom and degree;
Selecting secondary contents among the primary contents based on a rule according to the demographic information of the user;
Determining third one of the second ones based on the user profile of the user; And
And providing the determined tertiary content to the user. The method of claim 1,
And the psychological information is psychological information based on a response to a user's self-assessment tool writing question. delete The method of claim 1, wherein selecting second contents from among the first contents based on a rule according to demographic information of the user comprises:
And selecting the secondary contents by comparing the user profile of the user among the primary contents with a condition set by a rule engine based on demographic information. The method of claim 1, wherein determining the third one of the second pieces of content based on the user profile of the user comprises:
The method of claim 1, wherein the third content is selected as the highest content according to the ranking of the contents stored in the user profile. The method of claim 1, wherein providing the determined tertiary content to the user comprises:
And providing at least one service of an image, sound, aroma, and lighting corresponding to the determined third content. The method of claim 1,
Receiving a service satisfaction rating from the user and storing the service satisfaction rating in a user profile;
Storing a degree of change of the biosignal of the user in a user profile after the service is terminated for the user; And
And modifying a user profile based on the service satisfaction evaluation and the degree of change of the biosignal. A stress measurer to determine a stress symptom based on psychological information of a user, and determine a degree of stress based on the biosignal of the user;
A first content selecting unit which selects first content corresponding to the determined stress symptom and degree;
A second content selecting unit selecting second contents among the first contents based on a rule according to demographic information of the user;
A third content selecting unit which determines a third content among the second contents based on the user profile of the user; And
A content providing unit configured to provide the determined third content to the user,
A user profile storage unit for receiving a service satisfaction evaluation from the user, storing the service satisfaction evaluation in a user profile, and storing a change in the biosignal of the user in a user profile after service termination for the user;
And the user profile is modified based on the service satisfaction evaluation and the degree of change of the biosignal. The method of claim 8,
And the psychological information is psychological information based on the user's response to the self-assessment tool writing question. The method of claim 8, wherein the stress measuring unit
A Heart Rate Variability (HRV) spectrum is generated from the biosignal, and is based on a ratio of the peak value of the low frequency component (LF) and the peak value of the high frequency component (HF) of the HRV spectrum. Stress relief content providing system for determining the degree of stress. The method of claim 8, wherein the second content selection unit
And selecting the secondary contents by comparing the user profile of the user among the primary contents with a condition set by a rule engine based on demographic information. The method of claim 8, wherein the third content selection unit
The system of claim 1, wherein the third content is selected as the highest content according to the ranking of each content stored in the user profile. The method of claim 8, wherein the content providing unit
And a system for providing at least one of an image, sound, fragrance, and lighting corresponding to the determined third content. delete

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