KR20200098020A - Internet-based sleep detection and heat generation system - Google Patents

Abstract

The present invention relates to a system for providing a sleeping posture detection bed and heat generation based on the internet of things and, more specifically, to a system for providing a sleeping posture detection bed and heat generation based on the internet of things which uses a sensor coupled to a mattress cover to measure the body temperature in a sleeping state of a user while sleeping to provide concentrated heating on a portion with which body contact is not frequent if the body temperature drops to a prescribed temperature or lower. Also, the system for providing a sleeping posture detection bed and heat generation based on the internet of things comprises: a mattress cover; a sensor unit which is arranged on the mattress cover and detects the body temperature in a sleeping state of a user to output the detected body temperature in the sleeping state of the user; a transceiving unit to wirelessly transceive data of the sensor unit to/from an application of a portable terminal; the application to transmit a heating control signal to a controller of heating smart fabric clothing if the body temperature in the sleeping state of the user received from the transceiving unit is lower than or equal to a prescribed temperature; and the heating smart fabric clothing including a plurality of heating bodies embedded in divided areas of fabric clothing, and the controller to generate heat by supplying heating power to selected heating bodies if the heating control signal is received from the application.

Description

Internet-based sleep detection and heat generation system {Internet-based sleep detection and heat generation system}

The present invention relates to an Internet of Things-based sleeping posture detection bedding and heat supply system, in particular, when the temperature falls below a certain temperature by measuring the body temperature of the user while sleeping using a sensor coupled to the bed cover The present invention relates to an IoT-based sleeping posture detection bedding and heat providing system based on the Internet of Things to provide intensive heat generation to areas where physical contact is not frequent.

In recent years, sleep disorders in modern people have become more severe and have become a social problem, but it is difficult not only to detect the symptoms of sleep disorders by themselves, but also to recognize the severity of the symptoms.

In addition, an incorrect sleep posture affects the mood or sleep level after sleep, and if the sleep posture is not correct, fatigue does not resolve and affects health.

In other words, if fatigue persists, there is a problem that social life is difficult due to various symptoms as well as diseases such as insomnia and narcolepsy.

In addition, modern people who take sleep disorder lightly do not recognize the sleep disorder as a disease and neglect it for a long time, or avoid visiting a hospital for a sleep disorder to be examined or treated.

Unexamined Patent Publication No. 10-2011-0069332 (title of the invention: intelligent bed device through sleep state private room, publication date: June 23, 2011) Unexamined Patent Publication No. 10-2012-0073392 (Name of the invention: Sleeping posture automatic correction bed, Publication date: July 5, 2012)

The present invention is to solve the above problems, by measuring the body temperature of the user while sleeping by using a sensor coupled to the bed cover, when the temperature falls below a certain temperature, body contact is not frequent. It is to provide an Internet of Things-based sleeping posture detection bedding and heat supply system that provides intensive heat to a part.

The present invention is provided on the cover of the mattress, a sensor unit for detecting the body temperature of the user's sleeping state and outputting the detected body temperature of the user's sleeping state; A transceiver for transmitting and receiving data from the sensor unit wirelessly to an application of a portable terminal; An application that transmits a heat control signal to the controller of a heat generating smart fabric when the body temperature in the sleeping state of the user transmitted through the transmission/reception unit is below a certain temperature; And a heating smart textile garment having a plurality of heating elements embedded in each of the partition regions of the textile garment, and a controller that supplies heat to the selected heating element when a heat control signal is received in the application to generate heat.

In addition, the sensor unit of the present invention detects the user's sleeping state and outputs the detection result as data, the transmission/reception unit wirelessly transmits and receives the data of the sensor unit to a portable terminal, and the application transmits the data transmitted through the transmission/reception unit. Output and compare and analyze the data of the standard sleep state.

In addition, the sensor unit of the present invention is characterized in that at least one of a voice sensor, a body temperature sensor, and a motion sensor.

In addition, the sensor unit of the present invention is characterized in that it is detachable from the cover of the mattress.

In addition, the application of the present invention is characterized in that the data of the reference sleep state and the sleep state data of the user are compared and analyzed to provide information on at least one of sleep posture, pillow type, and pillow height.

In addition, the heating smart textile clothing of the present invention further comprises a gender-age determination unit for distinguishing age and gender from the user's voice information input through a microphone, the controller is the gender-age and age determined by the age determination unit Depending on the gender, the heat generation site and the heat generation temperature are controlled.

In addition, among the plurality of heating elements of the present invention, the first heating element is located on the hip, the second heating element is located on the thigh, and the third heating element is located on the lower knee.

In addition, the controller of the present invention keeps the temperature of the first heating element lower than the set temperature, and keeps the second heating element and the second heating element higher than the set temperature in the case of a male.

In addition, the controller of the present invention keeps the temperature of the first heating element higher than the set temperature, and keeps the second heating element and the second heating element lower than the set temperature in the case of a female.

In addition, the controller of the present invention maintains a temperature that is about 10 degrees lower than the set temperature when the age is in the teens to the 30s, maintains the set temperature when the age is in the 30s to 50s, and when the age is over 50 Try to maintain a proportionally increased temperature.

In addition, the heating smart textile clothing of the present invention further comprises an emotion determination unit that determines the emotion of the user from the user's voice information input through a microphone and provides the determined emotion to the controller, wherein the controller includes the emotion determination unit The heating temperature is adjusted based on the user's emotions transmitted from.

In addition, the controller of the present invention maintains a temperature about 10 degrees lower than the set temperature when the user is cheerful, maintains the set temperature in normal cases, and maintains the temperature increased in proportion to age in the depressed state. Do it.

In addition, the emotion determination unit of the present invention detects the user's voice as voice activity detection based on signal energy, and determines the user's emotion by extracting a feature parameter.

In addition, the emotion determination unit of the present invention includes a detection module for detecting a user's voice as voice activity detection based on signal energy; An extraction module for extracting a feature parameter from the user's voice detected by the detection module; And a recognition module that determines the user's emotion by using the feature parameter extracted by the extraction module.

In addition, the heating smart fabric clothing of the present invention is a plurality of fabric sensors that are embedded in each of the compartment area of the fabric to detect whether the user touches; And a contact state determination unit configured to receive a result of sensing contact from the plurality of fabric sensors to determine a user's contact state.

The present invention measures the body temperature of a user in a sleeping state so that when the temperature falls below a certain temperature, intensive heat generation is provided to a portion where body contact is not frequent.

1 is a block diagram of an IoT-based sleeping posture detection bedding according to the present invention;
FIG. 2 is a perspective view showing an IoT-based sleep posture detection bedding according to FIG. 1;
3 is an embodiment showing the distribution of the motion detection sensor of the sensor unit according to FIG. 1;
4 is an exemplary embodiment showing data output to the portable terminal according to FIG. 1.
Figure 5 is a configuration diagram of a heating smart fabric clothing used in the heating system according to an embodiment of the present invention.
6 is a configuration diagram further including a fabric sensor and a contact state determination unit in FIG. 5.
7 is a block diagram of a controller according to the present invention.
8 is a detailed circuit diagram of the controller according to the present invention.
9 is a detailed configuration diagram of an emotion determination unit according to the present invention.
A view showing a lead yarn of the fabric sensor of FIG. 9 of FIG. 10.
11 is a plan view of a fabric capable of measuring pressure in an embodiment using the conductive yarn of FIG. 10.
12 is a view for explaining the principle of pressure measurement using a conductive yarn according to an embodiment of the present invention.
13 is a plan view of a fabric capable of measuring pressure of another embodiment using the conductive yarn of FIG. 11.
14 is a view for explaining a plurality of slits formed between the weft and warp of the fabric sensor according to another embodiment of the present invention.

For a detailed description of the present invention to be described later, reference is made to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it should be understood that the location or arrangement of individual components in each disclosed embodiment may be changed without departing from the technical spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions over several aspects.

1 is a block diagram of an IoT-based sleep posture detection bedding according to the present invention, FIG. 2 is a perspective view showing the IoT-based sleep posture detection bedding according to FIG. 1, and FIG. 3 is a movement of a sensor unit according to FIG. An embodiment showing the distribution of detection sensors, and FIG. 4 is an embodiment showing data output to the portable terminal according to FIG. 1.

The IoT-based sleep posture detection system 100 according to the present invention includes a mattress 110, a frame 120, a sensor unit 130, a power supply unit 140, a transmission/reception unit 150, and an application 160. Done.

The bed consists of a mattress 110 on which a user can lie down and a frame 120 supporting the mattress 110.

The width and length of the frame 120 is determined according to the size of the mattress 110, and there are various types of the mattress 110 such as latex and spring.

In addition, the sensor unit 130 is coupled with the cover of the mattress 110 to detect the user's sleep state, and outputs the detection result as data.

The sensor unit 130 is composed of at least one of a sound sensor, a body temperature sensor, and a motion sensor, and the sound sensor is a sensor that collects and measures sound generated around the sensor with a microphone, and the user snores while sleeping. The sound is detected when a sound is generated due to a sleep disorder behavior such as a tooth or tooth.

The temperature sensing sensor detects the temperature of a fluid, solid, etc. and converts the temperature detected by a sensor used to record or control the temperature into an electric signal and transmits it.

The detection element that detects the temperature of such a temperature sensor is composed of a thermistor, platinum, nickel, and hot air, and the detection element detects the change in body temperature while the user is sleeping and converts the sensed temperature into an electric signal. The resulting signal is transmitted to the application 160.

The motion detection sensor detects a user's motion using a pressure sensor, and can find out information such as a range of motion and frequency of motion during a user's sleep according to a change in a part where pressure is sensed.

For example, as shown in FIG. 3, sensors are distributed on one surface of the sensor unit 130 at regular horizontal and vertical intervals to detect the user's movement, and the horizontal and vertical positions of the detected sensors are X, Y. It is calculated as an axis and converted into an electronic signal.

The sensor unit 130 is detachable from the cover of the mattress 110 and can be detached when necessary, such as washing or removing contamination.

For example, when washing is necessary because the cover of the mattress 110 is contaminated, it may be detached from the sensor unit 130 and washed separately, and then connected to the sensor unit 130 again after drying.

The power supply unit 140 is formed on one surface of the sensor unit 130 to supply power.

The transmission/reception unit 150 transmits and receives data from the sensor unit 130 to and from the portable terminal.

The transmission/reception unit 150 is made of wired communication or wireless communication, and in the case of wireless communication, it is connected to a portable terminal through one or more of wireless communication channels such as Bluetooth, NFC, beacon, and Wi-Fi to transmit and receive data.

The application 160 is installed in a portable terminal to receive data by the transmission/reception unit 150 and compare and analyze the data of the reference sleep state.

The application 160 stores data such as sleep time and sleep posture according to criteria such as age and gender, and uses the data to compare with the data of the user's sleep state and analyze the user's sleep state.

For example, the standard sleep time by age is about 14 hours for children under 12 months and 13 hours for children under 36 months, and about 12 hours for children aged 3 to 5, according to the National Sleep Foundation's announcement. Time is known to be about 10 hours for 6 to 13 years old, about 9 hours for 14 to 17 years old, about 8 hours for 18 to 64 years old, and about 7 hours for 65 years or older.

In addition, in the case of pregnant women, which are special circumstances, average 8 to 9 hours, and the average sleeping time varies depending on the country.

Based on these sleep data, the appropriate sleep time for the human body to recover, the number of times a person wakes up while sleeping, and the number of times he snores while sleeping to determine whether he or she has a good night's sleep.Check the user's sleep state and compare it with the reference sleep data. .

If the user snores while sleeping for 5 hours, the sleep time is shorter than that of the standard sleep state, and the user is informed of how much he snores while sleeping.

The application 160 compares and analyzes the data of the reference sleep state and the sleep state data of the user to provide information on one or more of a sleep posture, a pillow type, a pillow height, a sleep habit, and a sleep environment.

There are various postures such as a ceiling-looking posture, a left-sided posture, a right-sided posture, a crouched posture, and a posture using a pillow. Types of pillows include pillows made of latex, cotton, wood, grain, etc. In addition, there are various pillows depending on the user's sleeping position.

In addition, there are various types of sleep habits such as exercise before sleep, meal time, food, and bath, and sleep environment includes brightness of lighting, type of bedding, temperature and humidity of bedroom, fragrance of bedroom, type of pajamas, etc.

For example, the application 160 provides environmental information such as appropriate temperature, humidity, and brightness of a bedroom to a user who wants a good night's sleep, and provides information such as stretching and exercise that allows the user to sleep well before going to sleep. It affects the endorphins and fatigue in the user's body to help with a good night's sleep.

The application 160 compares and analyzes the user's sleep state data to determine whether there is a sleep disorder, and provides a method to help improve symptoms.

Types of sleep disorders include insomnia, inability to sleep properly, uneven breathing during sleep, sleep apnea, and narcolepsy in any time and place.

The application 160 analyzes the user's sleep data transmitted through the transmission/reception unit 150 to determine whether or not there is a sleep disorder, the type of the sleep disorder, etc., and provides a method for alleviating symptoms according to symptoms.

For example, if the number of times the user snores while sleeping is higher than the standard value, it determines the presence of sleep apnea according to the number of snores, and provides information such as sleep posture and sleep environment to help relieve sleep apnea. do.

The application 160 has a wake-up alarm function.

When the user sleeps, since the cover of the mattress 110 to which the sensor unit 130 is coupled is used, the user can wake up at a desired time by using an alarm function.

The alarm function that helps the user to wake up at a desired time is turned on/off based on the pressure sensed by the sensor unit 130.

For example, the user sets the alarm time to 7 am using the application 160, and when sleeping, pressure is sensed by the user's weight in the sensor unit 130, and the alarm time is set at 7 am. When the alarm starts to sound, the alarm continues until the pressure sensed by the sensor unit 130 is not detected.

In addition, the alarm can be turned on/off depending on whether or not there is a pressure sensed by the sensor unit 130 according to the user's setting, and the alarm can be turned on/off by manipulation of the portable terminal.

5 is a configuration diagram of a heating smart fabric clothing used in a heating system according to an exemplary embodiment of the present invention, and FIG. 6 is a configuration diagram including a fabric sensor and a contact state determination unit in FIG. 5.

5 and 6, the heating smart fabric clothing according to a preferred embodiment of the present invention includes a plurality of heating elements H; H1 to H3, which are built-in and disposed in each of the partition regions of the textile clothing 1, and a heating element ( A battery (B) that supplies power for heat generation to H; H1 to H3, a switch (S) for turning on and off electrical connection between a plurality of heating elements (H; H1 to H3) and the battery (B), and a user A controller (C) for supplying the heating power of the battery to the selected heating element by receiving a command signal according to the operation of and controlling the on/off of the switching unit (S), a gender-age determination unit (D), and an emotion determination unit It is roughly divided into components of (E), a plurality of fabric sensors FS (FS1 to FS3) and a contact state determination unit (T).

The plurality of heating elements (H; H1 to H3) are each built-in and disposed in a partition area of the textile garment (1), and are connected to the switching portion (S).

For example, one heating element H1 is located on the hip, the other heating element H2 is located on the thigh, and another heating element H3 is located on the lower knee.

Each of the plurality of heating elements (H; H1 to H3) has two power lines, that is, (+) power lines (L1, L2) so as to receive heating power from the battery (B) through the switching unit (S). , L3) and a (-) power line (not shown), one power line ((+) power line) is independent and the other power line ((-) power line) is common. In addition, each of the independent power lines L1, L2, and L3 are electrically connected to the battery B through the switching unit S, and the common power line is always electrically connected to the battery B. Thus, the heating elements H; H1 to H3 corresponding to the power lines L1, L2, and L3 electrically connected by turning on the switching unit S are supplied with heating power from the battery B.

The switching part (S) is a heating element selected by the wearer of the heating fabric clothing (1) among independent power lines (L1, L2, L3) to each of the plurality of heating elements (H; H1 to H3) under the control of the controller (C) ( The power lines L1, L2, and L3 corresponding to H; H1 to H3) are turned on so that the heating power is supplied.

At this time, the switching part (S) may turn on the entire independent power lines (L1, L2, L3) according to the selection of the wearer of the heating fabric clothing (1), and only one of the power lines (L1, L2, L3) It may be turned on, or a randomly selected number of power lines among a plurality of independent power lines L1, L2, and L3 may be turned on. In addition, when the switching unit S turns on the selected power lines L1, L2, and L3, it turns off the unselected power lines L1, L2, and L3 of course.

The battery (B), the controller (C) and the switching part (S) are each separately built into the case, and may be electrically connected to each other through a connector or cable, but in that case, the appearance is crude, and the heating fabric clothing (1) There are inconveniences and problems, such as having to make a pocket to attach or put each of them on the device, so the battery (B), the controller (C) and the switching part (S) are packaged together in one housing, thereby improving the appearance. It is desirable to make it neat, reduce the volume, and make it convenient to carry on the heating fabric garment 1, and to be easy to handle.

Meanwhile, the age-gender determination unit D distinguishes age and gender from the user's voice information input through a microphone (not shown), and provides them to the controller C.

Then, the controller (C) adjusts the temperature of the heating elements (H; H1 ~ H3) according to the age and gender.

For example, in the case of a male, the controller (C) maintains the temperature of the heating element (H1) in the hip region lower than the set temperature, and the thigh heating element (H2) and the heating element under the knee (H3) to maintain the temperature higher than the set temperature. do.

On the contrary, the controller (C) keeps the temperature of the heating element (H1) in the hip area higher than the set temperature in the case of a female, and the heating element (H2) of the thigh and the heating element under the knee (H3) to be kept lower than the set temperature. .

In addition, the controller (C) maintains a temperature that is about 10 degrees lower than the set temperature when the age is in the teens to 30s, and maintains the set temperature when the age is in the 30s to 50s, and proportional to the age when the age is over 50 To maintain the increased temperature.

In more detail, the age-gender determination unit D extracts one or more feature values or feature vectors (hereinafter, collectively referred to as'feature values') for voice information.

This age-gender determination unit (D) is a linear predictive coefficient (Linear Predictive).

Coefficient) method, Cepstrum method, Mel Frequency Cepstral Coefficient (MFCC) method, filter bank energy method, etc., or a combination of them to extract feature values. I can.

The age-gender determination unit (D) extracts a plurality of feature values from the same voice information by applying a plurality of the aforementioned feature value discrimination methods, or uses a single feature value discrimination method but uses a plurality of samples to obtain a plurality of feature values. Can be determined, and if the feature values are obtained for M voice samples by the N feature discrimination method, the feature values can be expressed in the form of a matrix of (N * M).

The age-gender determination unit (D) extracts a feature value by reflecting the difference between the male and the female, that is, the gender feature of the input voice information, and converts the voice information to the male group (M) based on the extracted feature value. Or divide into women and children group (FC).

In addition, the age-gender determination unit D may extract a feature value by reflecting the age-specific features of men with respect to the voice information divided into the male group M.

In addition, the age-gender determination unit D can extract feature values by reflecting the age-specific features of women and children for voice information divided into women and children group (FC), and as a result, input voice information again. It is divided into female group (F) and children group (C).

At this time, the children's group (C) is a group targeting people before the metamorphic period, where male and female characteristics are difficult to distinguish.

In addition, the age-gender determination unit D may extract a feature value by reflecting the age-specific features of women with respect to the voice information divided into the female group F.

In addition, the age-gender determination unit (D) is based on the voice information divided into children group (C).

On the other hand, feature values are extracted by reflecting the gender features of children.

Subsequently, the age-gender determination unit (D) determines a representative feature value by reflecting a weight on the extracted feature value, and based on the determined representative feature value, a reference feature value for each gender and age or a voice and image reference sample Gender and age are determined by referring to the stored standard DB.

Next, the emotion determination unit E detects the user's voice as voice activity detection based on signal energy for the user's voice input through the microphone, extracts the feature parameter, and determines the user's emotion. The determined emotional state is transmitted to the controller C.

The controller (C) maintains a temperature 10 degrees lower than the set temperature when the user is cheerful, maintains the set temperature in normal cases, and maintains the temperature increased in proportion to age in the depressed state.

Each of the plurality of fabric sensors FS (FS1 to FS3) is disposed to be embedded in a partition area of the fabric garment 1 and is connected to the contact state determination unit T.

For example, one fabric sensor FS1 is located at the hip, the other fabric sensor FS2 is located at the thigh, and another fabric sensor FS3 is located below the knee.

The contact state determination unit T receives the pressure signals sensed by the plurality of fabric sensors FS to determine whether the user's body has been in contact, and if it does, determines whether the user's body has been in contact with it, and determines whether it lasts for a certain time or longer, and determines the determination result to the controller C. Provided as

Then, when the body is not in contact with the body, the heating element H corresponding to the fabric sensor FS maintains the temperature higher than the set temperature, and when the body repeats contact and separation, the fabric sensor The heating element H corresponding to (FS) maintains the set temperature, the body is in contact with the fabric sensor FS for a certain time or longer, and the heating element H is kept lower than the set temperature.

On the other hand, as shown in FIG. 7, the controller (C) displays the touch panel (2) through which the user inputs a command signal by touch, and the heating temperature of the heating element (H) by the number of lights. An LED 3 for displaying a heating temperature is provided, a battery remaining amount display window 4 and a wireless communication unit 5 displaying the remaining amount of dischargeable power of the battery B.

As the battery (B), it is preferable to use a secondary battery that is charged through a commercial power source, and among the secondary batteries, it is preferable to use a lithium ion battery that is small and has a large capacity.

In addition, the controller C includes a switching unit 10, a resistance measuring unit 20, a control unit U4, a protection unit 50, and a constant voltage unit 40 as shown in FIG. 7.

The switching unit 10 generates a pulse-type heat generating power by switching the power discharged and output by the battery B, and applies it to the heating element H.

On-off switching of the switching unit 10 is controlled by the control unit U4 to adjust the duty ratio of the pulse.

As shown in FIG. 8, the switching unit 10 includes a first switching element U5 provided in a power line connecting the battery B and the heating element H, and the first switching element U5. A second switching element Q1 is connected to the gate terminal and the controller U4 to turn on and off the first switching element U5 according to a control signal from the controller U4, and the first switching element U5 And resistors R14, 15, and 16 that are connected in series or parallel to the second switching element Q1 to achieve a stable switching operation.

It is preferable to use a voltage control element FET or IGBT as the first switching element U5, which has a fast response speed (switching speed), suitable for high voltage, and stable switching operation.

The resistance measurement unit 20 measures the resistance value of the heating element H connected to the output terminal, detects the temperature of the heat radiated from the heating element, and transmits the measured resistance value of the heating element to the control unit U4. do. Thus, the control unit U4 controls the switching of the switching unit 10 so that the heating temperature of the heating element is adjusted to match the set temperature, thereby adjusting the duty ratio of the heating power pulse.

As shown in FIG. 8, the resistance measuring unit 20 includes an operational amplifier U7A for amplifying a resistance value of the heating element H according to a gain factor by connecting the heating element H to the non-inverting terminal, and the Two resistors R26 and 27 connected to the inverting terminal of the operational amplifier U7A to determine the gain ratio, and the reference voltage supplied by the constant voltage unit 40 and used to measure the resistance value of the heating element H ( A first transistor U6 that controls the supply of VCC1 to the operational amplifier U7A, and a first transistor U6 that controls on/off by the controller U4 and controls the on/off of the first transistor U6. It comprises two transistors (Q3).

In order to increase the accuracy of the resistance value of the heating element H measured by the resistance measuring unit 20, when measuring the resistance value, the control unit U4 cuts off the heating power applied to the heating element H (that is, the first 1 switching element (U5) is kept in an off state), and the second transistor (Q3) is turned on so that the first transistor (U5) is conducted so that the reference voltage (VCC1) of the constant voltage unit 40 is supplied. do. The supplied reference voltage VCC1 is applied to the heating element H so that the resistance value of the heating element H can be sensed.

The resistance value of the heating element H generally increases as the heating temperature increases. Since the resistance value of the heating element (H) according to the temperature varies depending on the component, thickness, and length of the heating element (H), it is necessary to secure accurate data on the heating temperature and resistance value of the heating element (H) obtained through experiments in advance. It may be desirable.

The controller U4 controls the controller C as a whole. In more detail, first, a command signal manipulated and input by a user through the touch panel 2 is received and processed. The command signal input by the user includes a power signal for turning on or off the controller, and a set temperature signal for setting the heating temperature to a desired temperature by the heating element H.

Next, the heat generation temperature of the heating element H is calculated from the resistance value of the heating element H that is sensed and measured by the resistance measurement unit 20 and transmitted, and the heating temperature according to the calculated resistance value is compared with a preset temperature. And, according to the comparison result, the switching unit 10 is controlled to adjust the pulse duty ratio of the heating power, so that the heating temperature of the heating element H maintains the set temperature. At this time, the control unit U4 internally converts the analog signal of the resistance value transmitted from the resistance measurement unit 20 to a digital signal through an A/D converter, and calculates the heating temperature based on the converted digital signal. .

In addition, when sensing and measuring the resistance value of the heating element H through the resistance measuring unit 20, the first switching element U5 of the switching unit 10 is turned off to cut off the heating power, and the resistance measuring unit ( The first transistor U6 of 20) is turned on so that the reference voltage of the constant voltage unit 40 is supplied.

And, by controlling the no-load detection unit 30, it detects whether the heating element H is normally connected to the output terminal, and when the detection result is that the heating element H is not connected, the switching so that the heating power is not applied to the heating element H. The part 10 is turned off.

For reference, the no-load detection unit 30 includes a detection resistor R18 that detects whether the heating element H is connected, a third transistor Q2 that controls power supply to the detection resistor R18, and the detection resistor. It comprises a transmission resistor (R19) for transmitting the result of detection by (R18) to the control unit (U4).

The protection unit 50 is directly connected to the battery B, and if an instantaneous high voltage such as a surge is included in the power output from the battery B, the constant voltage unit 40 connected thereafter by blocking it (U4), etc., is prevented from being damaged, and back electromotive force is applied to the battery (B) through the constant voltage unit 40 connected to the rear end to prevent damage to the battery (B). If) is discharged below the standard value, further discharge is blocked to protect the battery (B).

The constant voltage unit 40 converts the power supplied from the battery B to a constant voltage, supplies driving power to the control unit U4, and supplies a reference voltage to the resistance measuring unit 20.

The constant voltage unit 40 includes a regulator U3 that converts the supply power input from the battery B to a constant voltage and outputs the constant voltage, and the controller U4 using the output voltage of the regulator U3 as a driving voltage VCC. And a capacitor C5 supplied to the capacitor, and two distribution resistors R6 and R7 supplied to the resistance measuring unit 20 as a reference voltage VCC1 by voltage-dividing the voltage of the capacitor.

Meanwhile, as shown in FIG. 9, the emotion determination unit E includes a detection module 31 for detecting a user's voice as voice activity detection based on signal energy, and an extraction module for extracting a feature parameter ( 32), it may be composed of a recognition module 33 and a memory 34 for determining the user's emotions.

At this time, the detection module 31 performs voice activity detection based on signal energy and may detect a user's voice.

In addition, the extraction module 32 extracts a feature parameter from a sound source including a user's voice, and the feature parameter is based on a Mel-Frequency Cepstral Coefficient (MFCC) and Log-energy.

MFCC applies FFT (Fast Fourier Transform) to the user's voice that has passed through the Hamming Window, applies a Mel-scale filter bank to the result of applying the FFT to obtain a power spectrum, and takes a log of the power spectrum. , It can be obtained by applying DCT (Discrete Cosine Transform) to the result of taking the log.

The feature parameter is obtained by extracting a real sequence of 39th order every frame of speech.

Here, the length of the frame may be set to 30 ms. The 39th real sequence consists of three 13th real sequences. The first 13th real sequence is obtained by using MFCC (12th order) and Log-energe (1st order) extracted from the current frame, and the second 13th real sequence is obtained by using the difference of each element between the current frame and the 1st previous frame. The third real sequence is obtained by using the difference between the current frame and the second previous frame by element.

The recognition module 33 determines the user's emotion by comparing the characteristic parameter of the user's voice with the acoustic model for each emotion stored in the memory 34.

The memory 34 may store acoustic model data such as a Hidden Markov Model trained from voice data for each emotion for a plurality of emotions. Such acoustic model data is used by the recognition module 33 to determine the user's emotion.

The multiple emotions classified here can be neutrality, joy, anger, sadness, etc. However, the content of the present invention is not limited thereto, and may be classified into a plurality of emotions (for example, surprise, dislike, fear, etc.) according to other criteria.

On the other hand, the fabric sensor (FS) is a configuration that can measure the pressure applied to the fabric sensor (FS) as a numerical value, the conductive yarn (110-10) as shown in Figure 10 is used as a warp and weft yarn as shown in FIG. It is manufactured and formed.

Referring to Figure 10, the conductive yarn (110-10) of an embodiment includes a core yarn (110-11) and an elastic polymer coating layer (110-12) extruded to surround the outer surface of the core yarn (110-11) do.

The conductive thread 110-10 can conduct current through the central thread 110-11. The core yarn 110-11 may be formed by metal plating with a conductive metal such as silver on the outer surface of the multifilament made of synthetic fibers, but is not limited thereto. This core yarn (110-11) can be manufactured by a conventional method. That is, after spinning a synthetic fiber made of nylon, polyester, etc. as multifilament through a spinning pack, it can be produced by plating it. As for the method of metal plating treatment on the outer surface of the multifilament, the usual plating method used in manufacturing the conductive yarn can be applied as it is. The cross-sectional shape of the core yarn 110-11 may be circular or elliptical, and its diameter may also be adjusted according to the use of the fabric, and may be, for example, 20 to 1,000 micrometers.

The elastic polymer coating layer 110-12 is formed by extrusion molding together with the core yarn 110-11 so as to surround the outer surface of the core yarn 110-11. The elastic polymer coating layer 110-12 is extruded while completely enclosing the core yarn 110-11 to stably fix and support the core yarn 110-11 therein. In order to enable such a process, the polymer constituting the elastic polymer coating layer 110-12 must have thermoplastic properties and at the same time have elasticity, and must have a relatively high resistance. The relatively high resistance here is from a fewΩ to a few thousandΩ. The reason why the elastic polymer coating layer 110-12 has a relatively high resistance rather than a complete insulator is, as described below, the pressure at the intersection point of the two conductive yarns 110-10 in contact with each other. This is to measure. In the present invention, the degree of pressure is measured by measuring the change in capacitance or resistance between the two conductive threads 110-10, which occurs when pressure is applied to the intersection of the two conductive threads 110-10, and the elastic polymer coating layer 110- If 12) is a complete insulator, the change in capacitance or resistance cannot be measured.

Preferably, the material of the elastic polymer coating layer 110-12 of this property is an elastomer in which carbon particles are dispersed. The coating thickness of the elastic polymer coating layer 110-12 may be adjusted according to the use of the fabric, and may be, for example, 10 to 500 micrometers.

This conductive yarn (110-10) is used as warp and weft yarn to produce a fabric. 11 is a plan view of a fabric capable of measuring pressure according to an embodiment using the conductive yarn of FIG. 10.

Referring to FIG. 11, the fabric is woven with a weft 111 including a conductive yarn 111b and a general polymer yarn 111a, and a warp 112 including a conductive yarn 112b and a general polymer yarn 112a. That is, in the fabric capable of measuring the pressure of one embodiment, the conductive yarn 111b is used only for some weft yarns 111 and the other weft yarns 111 may be used as general polymer yarns, and the conductive yarn 112b for only some warp yarns 112 Is used and the remaining warp 112 may be a general polymer yarn 112a. However, it is not limited thereto and the conductive yarn may be used for all the weft yarns 111 and 112. The conductive yarn may be appropriately disposed on the weft yarn 111 and the warp yarn 112 so that the crossing point of the conductive yarn 112b used as the warp 112 and the conductive yarn 111b used as the weft 111 at the part to be measured for pressure. What is important is that at least one conductive yarn 111b must be present in the weft yarn 111, and there must be at least one conductive yarn 112b in the warp 112 as well. This is because the intersection of the conductive yarns 111b and 112b occurs. General polymer yarns 111a and 112a used in the weft yarns 111 and warp yarns 112 may be common polymer yarns such as cotton yarn, mat yarn, polyester yarn, and nylon yarn. In FIG. 11, although the fabric is illustrated as being woven in a plain weave, the present invention is not limited thereto, and the fabric may be woven in a twill weave, a runner weave, or a change structure thereof.

12 is a view for explaining the principle of pressure measurement using a conductive yarn according to an embodiment of the present invention, and shows a cross section taken along line A-A' of FIG. 11.

Referring to FIG. 12, the elastic polymer coating layers 110-12 of the two conductive yarns 111b and 112b are in contact with each other at the intersection of the weft conductive yarn 111b and the warp conductive yarn 112b in the fabric. In addition, when pressure is applied to the crossing point while current is applied to the two conductive yarns 111b and 112b, the thickness of the elastic polymer coating layer 110-12 decreases in proportion to the pressure, and thus, the two conductive yarns 111b, serving as electrodes. The distance d between 112b) is also reduced in proportion to this. When the distance d between the two conductive yarns 111b and 112b decreases, the capacitance C between the two conductive yarns 111b and 112b increases in proportion thereto. In general, the capacitance (C) is a ratio of the total amount of charge to the potential difference between conductors, which is proportional to the dielectric constant (ε) and the cross-sectional area (S) of the electrode, and inversely proportional to the distance (d) between the electrodes. The elastic polymer coating layer 110-12 of the conductive yarns 111b and 112b of the present invention serves as a dielectric, and the core yarn 110-11 serves as an electrode, so that pressure is applied to the intersection point and the elastic polymer coating layer 110- As the thickness of 12) decreases, the distance d between the two conductive yarns 111b and 112b decreases, and thus the capacitance between the two core yarns increases.

In the embodiment of FIG. 12, the principle of measuring pressure using capacitance has been described, but is not limited thereto, and pressure may be measured using a resistance value.

The resistance value (R) is proportional to the specific resistance (ρ) and length (l) of the material and inversely proportional to the cross-sectional area (A). When a current flows through the center yarns 110-11 of the conductive yarns 111b and 112b of the present invention, the elastic polymer coating layer 110-12 plays a role of resistance, and pressure is applied to the crossing point, so that the elastic polymer coating layer 110-12 When the thickness of) decreases, the distance d between the two conductive threads 111b and 112b decreases, resulting in a decrease in the length of the resistive material (ℓ). Therefore, the resistance value R also decreases. The degree of pressure can be measured through the measurement of the resistance value R according to the pressure change.

The arrangement structure of the weft yarn 111 and the warp 112 shown in FIG. 11 has a side that does not conform to the recent trend of pursuing thin woven clothing by making woven clothing thick even when woven directly applied to woven clothing. . In addition, the weaving method is so monotonous that it is difficult to form the desired pattern.

In order to solve this problem, as shown in FIG. 13, a fabric sensor may be configured with a single layer.

13 is a plan view of a fabric capable of measuring pressure of another embodiment using the conductive yarn of FIG. 10.

Referring to FIG. 13, a contact portion of a plurality of weft yarns 220 and a plurality of warp yarns 230 is attached through an adhesive to constitute the fabric sensor 210.

The weft thread 220 and the warp thread 230 are the same as the wire thread of FIG. 10 and are different in that the weaving method attaches the contact portion through an adhesive.

In this embodiment, the plurality of weft yarns 220 and the warp yarn 230 are connected to each other in the X-axis or Y-axis direction in a two-dimensional plane defined as an XY coordinate plane, and the plurality of weft yarns 220 and warp yarns 230 are A plurality of slits 225 having a very narrow width are formed.

Explaining this from a different perspective, a unit sensing cell including at least one of each unit weft yarn 220 and warp 230 may be defined. The unit sensing cell may have a quadrangular shape as shown in FIG. 14, and includes one or more unit weft yarns 220 and warp 230 therein.

14 is a view for explaining a plurality of slits formed between the weft and warp of the fabric sensor according to another embodiment of the present invention.

First, referring to FIG. 14, a plurality of slits 225 are based on a point at which a rectangular diagonal line defining the unit detection cell 240 intersects, that is, an intersection point at which the weft yarn 220 and the warp 230 intersect. It extends toward the vertex of a square shape and can have a sinusoidal shape. In order to increase the touch detection rate according to the low-diameter conductive rod, it is most preferable that the sinusoidal shape of the plurality of slits 225 is a half-wavelength sinusoidal curve, but is not limited thereto, and the sinusoidal shape is formed to repeat several cycles. Can be. In addition, the plurality of slits 225 may be formed to be point symmetric with respect to an intersection point at which the weft yarn 220 and the warp yarn 230 intersect in the unit sensing cell 240. That is, the virtual slit formed by rotating the slit formed in the direction from the center of the unit sensing cell to the vertex by 90 degrees is formed to coincide with the slit formed in the direction reaching the vertex adjacent to the vertex.

In this way, while maintaining the sameness of the weft and warp patterns between the X-axis and Y-axis directions, the area of the plurality of slits formed in the unit sensing cell 240 is increased, and interpolation is maintained while maintaining a large amount of change in capacitance of the sensing signal. You can increase it. In addition, the resolution representing the difference between the maximum value and the minimum value of the capacitance change amount is improved, which is advantageous for noise.

Meanwhile, the fabric sensors 110-1 and 210 described above are partially formed or attached to or inserted into the fabric clothing 100, and then the user moves while wearing the fabric clothing 100, or the user's posture is changed. , When sitting or lying on an external object, a force is applied in a vertical direction to the fabric sensors 110-1 and 210 by a user's body or an external object.

Then, the fabric sensor (110-1, 210) is the force applied to the fabric sensor (110-1, 210) and the change in which the fabric sensor (110-1, 210) is stretched (for example, the fabric sensor (110-1, 210) ), the change in resistance or change in the setting capacity can be detected.

This resistance change further includes a separate sensor capable of detecting a change in the current flowing through the fabric sensors 110-1 and 210 by the fabric sensors 110-1 and 210 by itself, or detecting a change in resistance or current. It can be detected by doing.

The fabric sensors 110-1 and 210 may provide the sensed resistance change value to the contact state determination unit T.

The battery B performs a function of supplying power to the fabric sensor FS.

In the present invention, when the sensor unit 130 of the IoT-based sleep posture detection system measures the user's temperature and transmits it to the application 160, the application 160 generates a heating fabric when the user's temperature is lower than the set temperature. By transmitting a heat control signal to the controller C of the clothing 1, the power lines L1, L2, and L3 corresponding to the heating elements H; H1 to H3 selected by the wearer are turned on to supply heat generation power to generate heat. .

At this time, the contact state determination unit (T) detects a part that is in contact with the mattress 110 using the fabric sensors 110-1 and 210 and is applied to the fuming bodies (H; H1 to H3) of the part corresponding to the contact part. The corresponding power lines L1, L2, and L3 are turned on to supply heat generation power to generate heat.

For example, if the back part is in contact with the matrix, the power lines (L1, L2, L3) corresponding to the fuming bodies (H; H1 to H3) present in the part corresponding to the abdomen are turned on to supply heat generation power to generate heat. , If the right arm is in contact with the matrix, the power lines (L1, L2, L3) corresponding to the fuming bodies (H; H1 to H3) present in the left arm are turned on to supply heat generation power to generate heat. So that heat is supplied to the user's body in a balanced manner so that the body temperature is maintained evenly.

The present invention uses a sensor coupled to the cover of the bed matrix to output the user's posture and sleep conditions such as snoring as data during sleep to prevent sleep disorders, etc., and to establish a sleep posture that can improve symptoms. Can be detected.

In addition, the present invention continuously monitors the presence or absence of physical contact so that intensive heat generation is provided to areas in which the physical contact is not frequent.

So far, the present invention has been looked at around the examples. Those of ordinary skill in the art to which the present invention pertains will be able to understand that the present invention may be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative point of view rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

1: heating fabric clothing 2: touch panel
3: Heating temperature display LED 4: Battery level display window
B: battery H: heating element
U1: control unit 10: switching unit
20: resistance measurement unit 30: no-load detection unit
40: constant voltage unit 50: protection unit
100: IoT-based sleep posture detection system
110: mattress
120: frame
130: sensor unit
140: power supply
150: transceiver
160: application

Claims (15)

mattress cover;
A sensor unit provided on the mattress cover to detect a body temperature of the user's sleeping state and output the detected body temperature of the user's sleeping state;
A transceiver for transmitting and receiving data from the sensor unit wirelessly to an application of a portable terminal;
An application that transmits a heat control signal to the controller of a heat generating smart fabric when the body temperature in the sleeping state of the user transmitted through the transmission/reception unit is below a certain temperature; And
Internet-based sleep including a plurality of heating elements embedded in each partition area of the textile clothing, and a heating smart textile clothing including a controller that supplies heating power to the selected heating element when a heating control signal is received from the application to generate heat Posture detection bedding and heat delivery system. The method of claim 1,
The sensor unit detects the user's sleep state and outputs the detection result as data,
The transmitting and receiving unit wirelessly transmits and receives the data of the sensor unit to the portable terminal,
The application outputs the data transmitted through the transmission and reception unit, the IoT-based sleep posture detection bedding and heat providing system for comparing and analyzing the data of the reference sleep state. The method of claim 1,
The IoT-based sleep posture detection bedding and heat supply system, characterized in that the sensor unit is at least one of a voice sensor, a body temperature sensor, and a motion sensor. The method of claim 1,
The IoT-based sleep posture detection bedding and heat supply system, characterized in that the sensor unit is detachable from the mattress cover. The method of claim 1,
The application is an IoT-based sleep posture detection bedding and heat provision system, characterized in that the application provides information on any one or more of a sleep posture, a pillow type, and a pillow height by comparing and analyzing data of a reference sleep state and data of a user's sleep state . The method of claim 1,
The heating smart fabric clothing
Further comprising a gender-age determination unit for distinguishing age and gender from the user's voice information input through the microphone,
The controller is an IoT-based sleep posture detection bedding and heat providing system for controlling a heat generating site and a heat temperature according to the age and gender identified by the gender-age determination unit. The method of claim 6,
Among the plurality of heating elements, the first heating element is located in the hip part, the second heating element is located in the thigh part, and the third heating element is located in the lower part of the knee. IoT-based sleeping posture detection bedding and heat providing system. The method of claim 7,
In the case of a male, the first heating element maintains a temperature lower than a set temperature, and the second heating element and the second heating element maintain higher than a set temperature. The method of claim 7,
In the case of a female, the first heating element maintains a temperature higher than a set temperature, and the second heating element and the second heating element maintain a set temperature lower than a set temperature. The method of claim 7,
The controller maintains a temperature that is about 10 degrees lower than the set temperature when the age is in the teens to 30s, maintains the set temperature when the age is in the 30s to 50s, and increases in proportion to the age when the age is over 50 IoT-based sleeping posture detection bedding and heat supply system to maintain The method of claim 1,
The heating smart fabric clothing
Further comprising an emotion determination unit for determining the user's emotion from the user's voice information input through the microphone and providing the determined emotion to the controller,
The controller is an IoT-based sleep posture detection bedding and heat provision system that adjusts the heating temperature based on the user's emotion transmitted from the emotion determination unit. The method of claim 11,
The controller is based on IoT, which maintains a temperature that is about 10 degrees lower than the set temperature when the user is cheerful, maintains the set temperature in normal cases, and maintains the temperature increased in proportion to age in the depressed state. Sleeping posture detection bedding and fever delivery system. The method of claim 11,
The emotion determination unit detects the user's voice as voice activity detection based on signal energy, and extracts characteristic parameters to determine the user's emotion. The method of claim 11,
The emotion determination unit includes: a detection module for detecting a user's voice as voice activity detection based on signal energy;
An extraction module for extracting a feature parameter from the user's voice detected by the detection module; And
An IoT-based sleep posture detection bedding and heat providing system comprising a recognition module that determines the user's emotion by using the feature parameter extracted by the extraction module. The method of claim 1,
The heating smart fabric clothing
A plurality of fabric sensors embedded in each of the compartment areas of the fabric clothing to detect whether a user touches it; And
Internet-based sleep posture detection bedding and heat providing system further comprising a contact state determination unit that receives a result of sensing contact from the plurality of fabric sensors and determines a user's contact state.

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