KR20170050173A

KR20170050173A - On-Chair Posture Control System with Flexible Pressure Mapping Sensor and method at the same

Info

Publication number: KR20170050173A
Application number: KR1020150151382A
Authority: KR
Inventors: 차길환
Original assignee: 차길환
Priority date: 2015-10-29
Filing date: 2015-10-29
Publication date: 2017-05-11

Abstract

The active posture correcting system using the flexible pressure distribution sensor according to the present invention includes a flexible pressure sensor unit that is distributed and arranged in a predetermined area to detect a pressure distribution, a pressure-distribution sensing signal is received from the flexible pressure sensor unit An attitude detection device comprising a signal processing section for generating pressure distribution information for detection and a communication module for externally transmitting the pressure distribution detection information generated by said signal processing section; And a posture correction guide device for comparing the body pressure distribution detection information from the attitude detection device and the body pressure distribution detection information for each reference position stored in advance to determine a posture of the user and outputting guidance information on the determined posture .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active posture correction system and method using a flexible pressure distribution sensor,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a health care technology, and more particularly, to an active posture correcting system and a method thereof, which detect a body pressure distribution at the time of a user's sitting and discriminate a posture of a user, .

Recently, healthcare is changing from a short-term treatment through a medical institution to a healthcare system that continuously checks health through apparatuses used by the patient in his / her daily life and informs the specialists of their usage patterns.

This change has become possible due to the development of IT convergence technology. It detects the user's biometric signal through various sensors and sends the detected information to various smart devices, and stores the DB (Database ) And SW (Software) that can analyze and compare with other services.

In recent years, Smart Sheet (smart sheet) based on intelligent smart fiber material that has built in pressure, temperature and humidity sensing function to monitor biometric information more accurately and conveniently responds to environmental changes like an organism, Applications are being studied.

Such a study is disclosed in Korean Patent Office No. 10-2014-0032082, which is titled as a user's seating posture monitoring system. In this technique, a pressure sensor and a tilt sensor are arranged, a pressure sensor and a tilt sensor are used to generate attitude data on the attitude of the user sitting on the chair, and the attitude data generated by the chair device are analyzed, An analyzing device for generating information, and a display device for displaying information generated in the analyzing device.

However, in the above-described conventional technique, four pressure sensors are provided at the edge of the seating surface of the chair to measure the posture, but this has not been able to accurately detect the posture reflecting the user's biometric characteristics.

More specifically, since the biometric characteristics such as the thickness and size of the muscles and fats constituting the buttocks and the shape of the pelvis bone constituting the buttocks are different from each other, the four pressure sensors installed on the seated surface edge concentrate the load on the part of the buttocks It is difficult to precisely detect, for example, which portion is applied and which portion is not subjected to a load, and it is difficult to clearly determine the posture of the user.

Therefore, in the past, there has been a problem that the user's posture can not be clearly monitored.

Korean Patent Publication No. 10-2014-0032082

An object of the present invention is to provide an active posture correcting system and a method thereof, which detect a body pressure distribution at the time of sitting differently according to a user's biometric characteristic, determine a posture of a user, and provide posture correction solution feedback information accordingly.

According to an aspect of the present invention, there is provided an active posture correcting system using a flexible pressure distribution sensor, comprising: a flexible pressure sensor unit that is arranged to be distributed to a predetermined region to detect a body pressure distribution; A signal processing unit for receiving and processing the detection signal to generate the body pressure distribution detection information, and a communication module for transmitting the body pressure distribution detection information generated by the signal processing unit to the outside; And a posture correction guide device for comparing the body pressure distribution detection information from the attitude detection device and the body pressure distribution detection information for each reference position stored in advance to determine a posture of the user and outputting guidance information on the determined posture .

According to the present invention, the body pressure distribution at the time of sitting differently according to the user's biological characteristics is detected to determine the posture of the user, and the posture correction solution feedback information corresponding thereto is provided, Can be provided.

FIG. 1 is a block diagram of an active posture correcting system according to a preferred embodiment of the present invention. FIG.
2 is a view showing an example of a sensor arrangement of an active posture correcting system according to a preferred embodiment of the present invention.
3 and 4 are flowcharts of an active posture correction service method according to a preferred embodiment of the present invention.
5 is a view illustrating an example of feedback information of a posture correction solution for active posture correction according to a preferred embodiment of the present invention.

The present invention can provide a customized active posture correction service by detecting the body pressure distribution at the time of sitting different according to the biological characteristics of the user, determining the posture of the user, and providing the posture correction solution feedback information accordingly.

The configuration of the active posture correcting system according to the present invention will be described in detail with reference to FIG.

The active posture correcting system includes an attitude detecting device 100 and a posture correcting guiding device 200.

The attitude detection device 100 is installed in a chair or the like and includes a flexible pressure sensor unit 102, a signal processing unit 104, a communication unit 106, and a charging circuit 110.

The posture correction guidance device 200 includes a communication unit 202, a processor 204, a memory unit 206, a display device 208, an audio output device 210, An interface unit 212 and a vibration device 214.

&Lt; Configuration of Attitude Determination Device 100 >

The flexible pressure sensor unit 102 of the attitude detection device 100 is constituted by flexible pressure sensors inherent in the seat or the seat of the chair and the back plate. The flexible pressure sensors, as shown in FIG. 2 (a) , An array of N * N lattice-shaped arrays each having a point interval of 3.5 cm and a vertical length of 41 cm, or may be interspersed at a plurality of predetermined positions as shown in FIG. 2 (b). The flexible pressure sensor unit 102 can quantitatively detect a user's body pressure distribution even in a fluffy medium such as a chair, thereby clearly detecting the user's posture. At this time, the body pressure distribution of the user can be measured in the form of a size depending on the force or contact area applied to the pressure sensor unit 102 by the user's hip or shoulder. The flexible pressure sensor may be a film type flexible device capable of measuring pressure by resistance, capacitance, piezoresistive or the like.

The signal processing unit 104 performs data collection and processing, and amplifies and filters the pressure-sensing pressure detection signals from the flexible pressure sensors provided in the flexible pressure sensor unit 102, ), Multiplexing, and the like to be processed into the body pressure distribution detection information, and provided to the posture correction guidance device 200 through the communication unit 106. The signal processing unit 104 includes a PCB circuit, a multiplexer, a signal amplifier, an ADC, a memory, a timing and filtering system, a bus interface, and a field programmable gate array (FPGA).

The communication unit 106 communicates with the posture correction guide device 200 as a wired (serial communication such as RS232 or USB) or a wireless (such as a Zigbee, Bluetooth, or WiFi) communication module.

The charging circuit 110 is composed of a portable system and a charging circuit and a battery (lithium polymer, lithium ion, etc.) for wireless communication.

The communication unit 202 of the posture correction guidance apparatus 200 is responsible for communication with the attitude detection device 100 as a wired (serial communication such as RS232 or USB) or a wireless (such as Zigbee, Bluetooth, WiFi) communication module.

The processor 204 requests the user's basic information inputted by the user according to a user's initialization request through the user interface unit 212 and the body pressure distribution detection information for each reference attitude to the attitude detection device 100, (106). The processor 204 receives the body pressure distribution detection information from the attitude detection device 100 and the body pressure distribution by reference attitude stored in the memory unit 106 according to a user's request for active posture correction service through the user interface unit 212 And compares the detection information to determine the posture of the user and outputs the posture correction solution feedback corresponding thereto. Especially, as shown in Fig. 5, the reference position may be a sitting position, a right posture (normal position), a leftward posture, a rightward posture, a backward posture, a forward inclined posture, It can be composed of a braided posture.

The basic information of the user may be composed of keys, weight, sex, and the like.

In addition, the processor 204 measures the pressure distribution information of the user, that is, the magnitude of the force or the contact area applied by the user's hip or shoulder to the pressure sensor unit 102 of the attitude detection device 100, And performs an analysis of the posture mode of the user in comparison with a correct posture (normal posture), and visually outputs the analysis through the display device 208. FIG. In particular, the visual output may have the form of a contour plot, a graph, an animation, text information, and the like.

The posture correction solution feedback of the processor 204 may provide real-time posture analysis information in the reference posture circle, may have the form of periodic analysis and on-demand analysis, and may provide quantitative analysis relative to the reference posture .

The posture correction solution feedback of the processor 204 may also take the form of an alarm sound output through the audio output device 210 and may take the form of a vibration output through the vibration device 214, You will be warned or cautioned to correct your posture.

In addition, the processor 204 may store statistical information by storing the attitude determination information of the user, and the statistical information may be provided to the user at the request of the user, Statistical information such as stars can be formed.

In addition, the processor 204 provides a posture correction guide as part of posture correction solution feedback, and the posture correction guide includes a posture warning, a rest notice, a correct posture guidance, a stretching video recommendation, Etc., daily, weekly, and monthly statistical information. The posture warning indicates the current posture state, and can be provided according to the period selected by the user. The break notification is to guide the user to rest when he or she is seated for a long period of time. For example, the user may be instructed to rest for 10 minutes when sitting for one hour in the right posture and for 10 minutes if sitting for 30 minutes in the wrong posture.

The memory unit 206 stores a necessary storage area at the time of program processing of the processor 204, and stores posture correction solution feedback information, user posture determination information, and the like according to the present invention.

The display device 208 displays display information under the control of the processor 204.

The audio output apparatus 210 outputs audio information under the control of the processor 204.

The user interface 212 is responsible for the interface between the processor 204 and the user.

The vibration device 214 is driven under the control of the processor 204 to generate vibration.

The active posture correcting service process using the active posture correcting system according to the preferred embodiment of the present invention will be described in detail with reference to the flow charts of FIG. 3 and FIG.

First, when the initialization is requested by the user (step 300), the posture correction guidance device 200 guides the user to input basic information and stores the basic information when the user inputs the basic information according to the guidance ). The basic information of the user may include a key, a weight, a sex, and the like.

When the storage of the basic information is completed, the posture correction guidance device 200 receives the user's body pressure distribution detection information from the attitude detection device 100 and stores the same (steps 304 to 318).

More specifically, when the posture correction guidance device 200 requests the user's body pressure distribution detection signal (304), the user also sits at the posture detecting device 100, and thus the posture detecting device 100 detects the user's body pressure distribution The posture correction guidance device 200 stores the detection information of the body pressure distribution when it is input (steps 306 to 312). In this process, the attitude detection device 100 measures the force or the contact area applied by the user's hip or shoulder, and converts the force or contact area into the body pressure distribution detection information (step 306). At this time, the attitude detection device 100 measures Measurement of pressure information on the pressure distribution is repeatedly performed, and the force or contact area according to the position movement is compared with the reference coordinate value to reset the coordinate value, and the moving average value is measured (steps 308 to 310). Accordingly, the body pressure distribution detection information of the moving average value is transmitted to the posture correction guidance device 200 (step 312).

Thereafter, the posture correction guide device 200 receiving the moving average value classifies the received moving average value pressure-pressure distribution detection information by reference position and determines the posture mode as shown in FIG. Referring to FIG. 5, the posture correction guide device 200 quantitatively analyzes and guides the seating posture of the user with respect to the reference posture, and the guidance may be performed through a posture analysis balance or a posture analysis circle. The posture analyzing circle schematically shows the reference posture in a circular shape and the user's posture is close to which reference posture. 5B, the posture mode to be classified includes a non-sitting state, a right posture (normal posture), a left-leaning posture, a right-leaning posture, a backward-leaning posture, a forward leaning posture, Leg braided posture, and the like. 5 (a), in the determination of the posture mode, if there is no measured pressure distribution detection information, it is determined that the patient is not in a sitting position, and the correct posture is set as a reference value. Accordingly, the left-right inclination is measured in the right posture (from the reference value) to judge the left-leaning posture or the right-leaning posture, and the forward / backward inclination is measured to determine the posture leaning backward or backward. At this time, the left and right and front / rear inclination can be determined to be normal or abnormal within the setting range angle.

Further, the right-leg twist or the left-leg twist is compared with the reference set value of the force or the contact area applied to the user's hip or shoulder together with the left-right inclination, and when it is not within the range of the reference set value, .

And provides an active posture correction service according to the determined posture mode.

The posture correction guidance device 200 compares the user's pressure distribution distribution detection information value and the determined posture mode received from the posture detection device 100 with the pressure change distribution detection information values stored in advance in the initialization process, (Step 314), and feedback information on the posture correction is derived (step 316).

At this time, feedback information on the posture correction is provided in the form of a posture warning and a break notification. For example, the posture warning indicates the current posture state, and may be provided according to the period selected by the user. The break notification is to guide the user to rest when he or she is seated for a long period of time. For example, the user may be instructed to rest for 10 minutes when sitting for one hour in the right posture and for 10 minutes if sitting for 30 minutes in the wrong posture.

In addition, the posture warning, the break notification may have the form of an alarm sound output through the audio output device 210, and may take the form of a vibration output through the vibration device 214.

In addition, the statistical information may be generated by storing the user's attitude determination information (step 318). The statistical information may be provided to the user at the request of the user, and may be formed in the form of daily, weekly, or monthly statistical information Can be provided. In addition, various statistical information such as sex, age, and country can be formed through the server.

At this time, along with statistical information, it is possible to provide posture correction solution information such as correct sitting posture, recommendation of stretching video, recommended motion after work or after school, and the like.

As described above, the technical ideas described in the embodiments of the present invention can be implemented independently of each other, and can be implemented in combination with each other. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. It is possible. Accordingly, the technical scope of the present invention should be determined by the appended claims.

100: attitude detecting device
102: Flexible pressure sensor unit
104: Signal processor
106:
110: charging circuit
200: Posture correction guide device
202:
204: Processor
206:
208: Display device
210: Audio output device
212:
214: Vibrating device

Claims

In an active posture correction system using a flexible pressure distribution sensor,
A flexible pressure sensor unit that is distributed over a predetermined area to detect the pressure distribution, a signal processing unit that receives and processes the pressure pressure distribution detection signal from the flexible pressure sensor unit to generate pressure pressure distribution detection information, An attitude detection device having a communication module for transmitting a pressure distribution information to the outside; And
A posture correction guiding device for comparing the body pressure distribution detection information from the attitude detection device and the body pressure distribution detection information for each reference attitude stored in advance to determine a posture of the user and outputting guidance information on the determined posture;
Wherein the active posture correction system includes a flexible pressure distribution sensor.

The method according to claim 1,
The guidance information on the determined posture may be, for example,
Wherein the controller is configured to display an image of the reference posture that is close to the reference posture of the reference posture that is stored in advance, and to guide the user to the active posture correcting system using the flexible pressure distribution sensor.

The method according to claim 1,
Wherein the flexible pressure sensor unit comprises:
It consists of a number of film type flexible pressure sensors,
Wherein the plurality of flexible pressure sensors are arranged in a lattice or disposed at predetermined positions.

The method according to claim 1,
Wherein the flexible pressure sensor unit is installed on a seat of a chair or a seat of a chair and a back plate of the chair.

In a posture correction method in an active posture correction system using a flexible pressure distribution sensor,
(a) requesting initialization through a user terminal and inputting basic information;
(b) when the user terminal requests the user's body pressure distribution detection signal, the attitude detection device generates and supplies the user's body pressure distribution detection information to the user terminal;
(c) the user terminal classifying the received pressure-pressure distribution detection information by reference position and determining a posture mode;
(d) the user terminal compares the body pressure distribution detection information, the determined posture mode, and the pre-stored reference posture pressure distribution detection information to determine whether the posture of the user is corrected or not;
(e) deriving feedback information on the posture correction according to whether the posture is corrected or not; And
(f) generating statistical information by storing the attitude determination information of the user.

6. The method of claim 5,
In the step (b), the body pressure distribution detection information is measured by the attitude detection device repeatedly according to the set period, and the force or the contact area according to the position movement is compared with the reference coordinate value Wherein the coordinate value is a moving average value measured by being reset.

6. The method of claim 5,
In the step (c), the posture mode corresponds to any one of a non-sitting state, a right posture, a leftward posture, a rightward posture, a backward posture, a forward posture, a left leg posture posture, And the posture correcting method.

6. The method of claim 5,
In the step (e), the feedback information on the posture correction may be provided in the form of a posture warning and a break notification, and the posture warning and the break notification may be output through an audio output device, And the posture correcting method.