KR20180031850A - Smart IoT chair and sitting attitude monitoring system - Google Patents

Abstract

Disclosed are a smart IoT chair and a sitting position monitoring system which allow a user to check a sitting habit of the user. According to an embodiment of the present invention, the smart IoT chair has embedded IoT equipment installed on a seat-separable chair, and comprises: a pressure sensor installed on a prescribed position of a seat to measure a pressure by a position of a sitting person; a tilt sensor installed on a prescribed position of the seat to measure a tilt of the seat by a sitting position; a communication module to transmit position data to at least one among a user terminal and a wireless gateway by a Bluetooth communication method, and receive a list request or a detail request from the user terminal; and a control module to convert a value measured by the pressure sensor and a value measured by the tilt sensor in accordance with a predetermined packet structure to generate the position data, and determine the Bluetooth communication method in accordance with a request type from the user terminal.

Description

[0001] Smart IoT chair and sitting attitude monitoring system [0002]

The present invention relates to a Smart IoT chair and a sitting posture monitoring system.

Modern people spend more than half a day sitting for various purposes such as study or business purpose. Therefore, modern people are suffering from a variety of back problems such as back disk, pelvic distortion, and scoliosis which had hardly occurred in the past. In recent years, there are hospitals where only the spine is treated professionally.

With the success of the DuoBack technology, many of the chairs currently on the market are adopting a backrest separation technology. In recent years, however, unlike conventional duo bags, the back plate and the plate where the butt touches are also divided into two parts. The seats in the seats are separated by the two parts of the plate where the hips touch, reducing the pressure on the hips and pelvis / waist, which reduces the pressure on the waist and hips that are created by long sitting. This not only reduces back pain and hip pain when sitting for a long time, but also induces the user to sit in the right position.

Recently, a system has been developed that monitors the user's sitting posture using various sensors and provides information on the sitting posture.

Korean Registered Patent No. 10-1379351 (Registered on March 24, 2014) - User's sitting posture monitoring system

The present invention visualizes data by measuring the inclination of each hip contact plate separated from the seat separable chair and the pressure applied to the plate, thereby allowing the user to check the habit of sitting by himself or herself, To provide a smart IoT chair and sitting posture monitoring system.

The present invention relates to a Smart IoT chair and a sitting posture monitoring system that can receive signals from various devices in one smart phone and transmit signals from one device to a plurality of smartphones by combining low power Bluetooth communication and iBeacon communication method .

Other objects of the present invention will become more apparent through the following preferred embodiments.

According to an aspect of the present invention, there is provided a Smart IoT chair having an embedded IoT device installed in a seats separated from each other, the pressure sensor comprising: a pressure sensor installed at a predetermined position of the seat to measure pressure according to an attitude of a seated person; A tilt sensor installed at a predetermined position of the seat so as to measure a tilt of the seat according to a seating posture; A communication module that transmits the attitude data to at least one of a user terminal and a wireless gateway by a Bluetooth communication method and receives a list request or a detailed request from the user terminal; A control module for converting the value measured by the pressure sensor and the value measured by the tilt sensor according to a predetermined packet structure to generate the attitude data and determining the Bluetooth communication method according to a request type from the user terminal Smart IoT chairs are included.

When the request from the user terminal is a list request, the communication module can perform communication using an i-beacon communication method.

Or if the request from the user terminal is a detailed request, the communication module can perform communication using a connection communication method.

Wherein the pressure sensor comprises: an upper plate on which a first conductive chamber is disposed in a zigzag manner on a lower surface thereof and in which a plurality of first buffer members are disposed at regular intervals below the first conductive chamber; A lower conductive plate arranged on the upper surface in a zigzag manner and having a plurality of second buffer members arranged at regular intervals on the second conductive chamber; And a conductive film layer interposed between the upper plate and the lower plate.

The tilt sensor may include a plurality of switch modules that are turned on at different slopes.

When the mercury ball is present inside the body and the mercury ball is slanted by more than a predetermined angle, the mercury ball slides to connect the pin of the first terminal and the pin of the second terminal to each other.

Wherein the tilt sensor includes three switch modules, the first switch module (A) is placed horizontally, the second switch module (B) is placed at a first tilt angle, and the third switch module (C) And the second inclination angle may be twice the first inclination angle.

One end of the first switch module A, the second switch module B and the third switch module C are connected to the power source Vcc and the other ends are connected to the switch resistors 2R, 2 / 3R, 0 and the other end of each of the switch resistors is connected to the ground GND, and a common resistance R is interposed therebetween, and the voltage across the common resistance R becomes an output value of the tilt sensor have.

The attitude data uses a UUID of 16 bytes in the message packet structure of the iBeacon data as an identification number for indicating the position where the smart IoT chair is installed, and the 2-byte major value indicates the use of the chair number And a minus value of 2 bytes can be used as a value indicating the current chair status.

The minor value is divided into 2 bits and divided into 6 bits of the left slope (TL), right slope (TR), left front pressure (PLF), left rear pressure (PLB), right front pressure (PRF) Can be assigned to sensor values.

According to another aspect of the present invention, there is provided a method of monitoring a sitting posture performed by a user terminal communicating with a plurality of Smart IoT chairs, the method comprising: transmitting a list request to the plurality of Smart IoT chairs; Receiving first posture data from the plurality of Smart IoT chairs in an iBeacon communication manner; Analyzing and displaying the first attitude data; Transmitting a detailed request to a selected Smart IoT chair among the plurality of Smart IoT chairs; Receiving a second posture data in real time by communicating with a Smart IoT chair that has transmitted the detailed request in a connection communication manner; And analyzing the second posture data to visualize and display the current sitting posture.

And executing a game for guiding the user to write in the direction opposite to the normal habitual sitting direction based on the stored attitude data of the user.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, the slope of each hip contact plate separated from the seat separable chair and the pressure applied to the plate are measured to visualize the data, thereby allowing the user to check the habit of sitting by himself or herself, The posture correction can be induced.

In addition, by combining low-power Bluetooth communication with iBeacon communication method, it is possible to receive signals from a plurality of devices in one smartphone or transmit signals from one device to a plurality of smartphones.

FIG. 1 is a block diagram showing a schematic configuration of a smart IoT chair and a sitting posture monitoring system according to an embodiment of the present invention;
2A is a plan view of a pressure sensor,
2B is a cross-sectional view of the pressure sensor,
3A is a configuration diagram of a switch module constituting a tilt sensor,
3B is a view showing a tilt sensor,
3C shows a tilt sensor circuit,
FIG. 3D is a table showing the output value of the tilt sensor according to the switch state,
Figure 4 shows an embedded IoT device attached to a Smart IoT chair,
5 shows an iBeacon packet structure,
6 is a diagram illustrating a minor data structure,
7 is a diagram showing the meaning of the packet data and the sensor position,
FIG. 8 is a flowchart of a seating-posture monitoring method performed in a seating-posture monitoring system according to an embodiment of the present invention;
9 shows a demonstration picture of an application running on a user terminal,
10 is an exemplary view showing the operation of a Smart IoT chair and an application according to the present embodiment;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a diagram showing a schematic configuration of a smart IoT chair and a sitting posture monitoring system according to an embodiment of the present invention.

The seating posture monitoring system according to an embodiment of the present invention includes a smart IOT chair 100 and a user terminal 210 connected to each other through a communication network. In addition, it may further include a wireless gateway 220 and a server 230.

The smart IoT chair 100 measures information on the sitting position of a seated person using a new pressure sensor and a tilt sensor and converts the information into attitude data and transmits the data to the user terminal 210 via Bluetooth or wireless Internet, (220) to the server (230). The transmitted attitude data may be received by both the user terminal 210 and the wireless gateway 220.

The user terminal 210 can be used for visualizing the received attitude data in real time and delivering information to the user or for correcting the attitude in the form of notification / game / exercise. Here, the user terminal 210 may be an electronic terminal capable of installing a program (app, application, etc.) for visualization of posture data and correction of a sitting posture.

The wireless gateway 220 receives unique identification information, attitude data, time, and the like from one or more Smart IoT chairs 100 and records them in the database of the server 230 to post-analyze the posture pattern of the user or group . The user terminal 210 may transmit the attitude data to the server 230 instead of the wireless gateway 220. [

The smart IoT chair 100 can be manufactured as a type having an embedded IoT device installed on a seats separated from the seat. The seat separation type chair is a chair in which the plate portion of the seated person's hips is divided into two parts and measures the inclination of each separated butt contact plate and the pressure applied to each of the hip contact plates to produce data do.

The smart IOT chair 100 may include a pressure sensor 110, a tilt sensor 120, a communication module 130, and a control module 140.

The pressure sensor 110 is attached to a predetermined position of the seat so as to measure the pressure according to the posture of the seated person. By analyzing the distribution of the pressure measured according to the arrangement of the pressure sensor 110, it is possible to grasp the seating posture of the seated person.

The tilt sensor 120 is attached to a predetermined position of the seat so as to measure the tilt of the seat. The degree of balance with respect to the sitting position of the seated person can be grasped by comparing the degrees of inclination of the left and right side plates on both sides.

The communication module 130 transmits the value measured by the pressure sensor 110 and the value measured by the tilt sensor 120 to the user terminal 210 and / or the wireless gateway 220 through a low power communication method. The communication method used by the communication module 130 is based on a Bluetooth communication method, and an iBeacon communication method and a connection communication method can be selectively used depending on the situation.

The control module 140 generates attitude data according to a packet structure suitable for a communication method in order to transmit the values measured by the pressure sensor 110 and the tilt sensor 120 through the communication module 130, ).

In this case, the communication mode in the communication module 130 can be determined according to the type of the request received from the user terminal 210 or the wireless gateway 220. The smart IOT chair 100 may further include a power source for supplying power to the pressure sensor 110, the tilt sensor 120, the communication module 130, and the control module 140.

Hereinafter, the configuration and function of each component of the smart IOT chair 100 will be described in detail with reference to related drawings.

2A is a plan view of the pressure sensor, and Fig. 2B is a sectional view of the pressure sensor.

2A and 2B, the pressure sensor 110 according to the present embodiment includes a top plate 310, a bottom plate 320, and a conductive film layer 330 interposed therebetween. The upper plate 310 and the lower plate 320 may be coupled to each other in a state in which the conductive film layer 330 is disposed in the middle by a coupling method such as sewing.

2A is a plan view of the upper plate 310 and the lower plate 320. As shown in FIG. The top plate 310 is viewed from above and the bottom plate 320 is viewed from above.

The upper surface of the upper plate 310 is arranged in a staggered manner with a first conductive chamber 312 whose one end is fixed near a vertex of the lower surface. The other end of the first conductive chamber 312 may be exposed to the outside of the top plate 310 and connected to a terminal of the circuit. In the first conductive chamber 312, the solid line portion may be stitched on the front surface (lower surface) and the dotted line portion may be stitched on the back surface (upper surface). That is, the main arrangement direction (horizontal direction in the drawing) of the first conductive chamber 312 is exposed on the lower surface, and a portion in the direction (vertical direction in the drawing) intersecting with the main arrangement direction can be exposed on the upper surface.

The lower plate 320 also has a structure similar to that of the upper plate 310 and a second conductive chamber 322 whose one end is fixed near one vertex of the upper surface is staggered. The other end of the second conductive chamber 322 may be exposed to the outside of the lower plate 320 and may be connected to other terminals of the circuit. In the second conductive chamber 322, the solid line portion may be stitched on the front surface (upper surface) and the dotted line portion may be stitched on the back surface (lower surface). That is, the main arrangement direction (horizontal direction in the drawing) of the second conductive chamber 322 is exposed on the upper surface, and the portion in the direction (vertical direction in the drawing) intersecting with the main arrangement direction can be exposed on the lower surface.

The first conductive chamber 312 of the upper plate 310 and the second conductive chamber 322 of the lower plate 320 are connected to the intermediate conductive film layer 330 and the second conductive film 322 of the upper plate 310 by the seating of the seated person, And the resistance value (signal value) can be varied depending on the point of contact.

A plurality of first cushioning members 314 may be provided on the lower surface of the upper plate 310 at predetermined intervals in a direction intersecting the main arrangement direction of the first conductive chamber 312. The first cushioning members 314 of N (natural numbers of 2 or more) partition the first conductive chamber 312 into (N + 1) spaces.

A plurality of second buffer members 324 may be provided on the upper surface of the lower plate 320 at predetermined intervals in a direction intersecting the main arrangement direction of the second conductive chamber 322. N second buffer members 324 partition the second conductive chamber 322 into (N + 1) spaces.

The first cushioning member 314 and the second cushioning member 324 serve as a buffer between the upper plate 310 and the lower plate 320 so that the first conductive member 312 and the second conductive member The width of the signal value corresponding to the pressure difference can be increased by allowing the conductive film 322 to contact the conductive film 330 of the intermediate layer and to distinguish the space to be contacted according to the pressure position.

FIG. 3B is a view showing a tilt sensor, FIG. 3C is a diagram showing a tilt sensor circuit, and FIG. 3D is a diagram showing the output value of the tilt sensor according to the switch state. FIG. 3A is a configuration diagram of a tilt sensor, Table.

The tilt sensor 120 can measure the tilt of the hip contact plate according to the sitting posture of the seated person by subdividing the tilt.

The tilt sensor 120 includes a plurality of switch modules 400 that are turned on at different tilt angles.

Referring to FIG. 3A, when the mercury ball 420 is present inside the body 410 and is inclined by a certain angle, the switch module 400 slides the inner mercury ball 420 to connect the two pins, The switch operates on the same principle as the switch.

For example, in the present embodiment, the analog output tilt sensor 120 can be manufactured by using three switch modules 400 and applying a DAC circuit (tilt sensor circuit shown in FIG. 3C).

The three switch modules 400 are divided into A, B, and C, and the tilt sensor circuit has a resistance value capable of expressing 0, 1/3, 2/3, and 1 as Vcc in each step.

Referring to FIG. 3B, the three switch modules 400 are installed at different angles. The first switch module A is placed horizontally (0 degrees), the second switch module B is placed at the first inclination angle 1, and the third switch module C is placed at the second inclination angle 2 Can be placed. Here, the second inclination angle [theta] 2 may be twice the first inclination angle [theta] 1.

3C, in the tilt sensor circuit, one end of the first switch module A, the second switch module B, and the third switch module C are connected to the power source Vcc, 2R, 2 / 3R, and 0 (zero) resistors. The other end of each switch resistance is connected to the ground (GND), and a common resistance R is interposed therebetween. The voltage across the common resistance R becomes the output value of the tilt sensor 120. [

In FIG. 3B, the values 3, 1, 0, and 1.5 are resistance values corresponding to 2R, 2 / 3R, 0, and R in FIG. 3C, respectively.

Referring to FIG. 3D, initially, all the switch modules 400 are turned off, so that the output value (target value) becomes zero. When the inclination is inclined by the first inclination angle, the first switch module A is turned on, and in this case, the output value (target value) becomes 1/3 of the power supply Vcc. When the tilt is inclined by the second inclination angle, the second switch module B is also turned on, and in this case, the output value (target value) becomes 2/3 of the power supply Vcc. When the inclination is larger than the second inclination angle, the third switch module C can also be turned on. In this case, the output value (target value) becomes the same value as the power source Vcc.

By using the change of the output value according to the switch state, the tilt sensor 120 can further measure the slope of the hip contact plate according to the sitting position of the seated person.

Figure 4 is a diagram of an embedded IoT device attached to a Smart IoT chair.

4, four pressure sensors 110RF, 110RB, 110LF, and 110LB and two tilt sensors 120R and 120L may be attached to the smart IOT chair 100. FIG. The four pressure sensors 110RF, 110RB, 110LF and 110LB are arranged on the front / back in the left / right seat cushion of the chair (PRF, PRB, PLF, PLB) and two tilt sensors 120R , 120L can be attached to the lower left and right side plates (RT, LT). The control module 140 corresponding to the main board is an embedded type and can be installed at the rear of the lower part of the chair. The communication module 130 may be installed on the main board corresponding to the control module 140.

FIG. 5 is a diagram showing an iBeacon packet structure, FIG. 6 is a diagram showing a minor data structure, and FIG. 7 is a diagram showing the meaning of the packet data and the location of the sensor.

The communication module 130 basically transmits attitude data via Bluetooth communication (e.g., Bluetooth 4.0).

The control module 140 determines the format of the attitude data to be transmitted from the communication module 130, and designs the structure of the message packet accordingly.

In the Bluetooth communication, the iBeacon communication method has a message packet structure as shown in FIG. The iBeacon data includes a 9-byte iBeacon prefix, a 16-byte UUID, a 2-byte major, a 2-byte minor, and a 2-byte transmit power (Measured Tx Pwr). Among these, there are three kinds of data that the user can arbitrarily change and express by UUID, major, and minor.

In this embodiment, since the UUID is 16 bytes, the UUID is used as an identification number for indicating a location (building) where the chair is installed, and the major value is used for indicating the chair number in the building with 2 bytes. And a minor value can be used to transmit the current state of the chair.

The minor value is 16-bit data. On the basis of the fact that each sensor outputs the value of four stages as described above, the 16 bits are divided into two bits as shown in FIG. 7 to transmit six sensor values .

Referring to FIG. 6, the structure of the minor data is shown, which indicates where each data constituting each packet means. TL is Tilt Left, TR is Tilt Right, PLF is Left Left Pressure, PLB is Left Left Pressure, PRF is Right Right Front, , PRB means pressure right back.

The meaning of the packet data and the sensor position are shown in Fig.

8 is a flowchart illustrating a method of monitoring a sitting posture performed in a sitting posture monitoring system according to an embodiment of the present invention.

Receiving data in the form of iBeacon and checking the reception rate of the data shows that the reception rate of the data is very irregular. This is because, although each iBeacon transmits data at regular intervals, the receiving data processing method differs depending on the receiving system's platform or operating system (eg, Android, iOS).

Accordingly, in the present embodiment, data may be transmitted and received by using a Bluetooth communication method in order to compensate for this.

In the iBeacon communication method, it is possible to receive iBeacon signals for one device (smart IoT chair in this embodiment) at a plurality of user terminals, and conversely, signals of various devices can be received from one user terminal. However, in the case of the connection communication method, data transmission / reception is possible only between two connected devices (one user terminal and one device).

The iBeacon communication method is disadvantageous for high speed transmission and regular reception of data, but the connection communication method enables high-speed transmission and regular reception.

Considering the merits and demerits of these two communication methods, the present embodiment envisions a method of providing an actual service.

For example, if a user wants to view detailed data, that is, if the user is a sitting chair, it would be better to show high frequency data through fast sampling, and if the user does not need to look closely, (low sampling frequency) data.

Accordingly, the first user drives an application related to the seating and posture monitoring service (step S800), confirms the list of the chairs in the room, and transmits a request (list request) to various Smart IoT chairs to check the status briefly S805). In this case, signals for attitude data are received from various Smart IoT chairs using an iBeacon communication method capable of receiving various signals, and interpreted and displayed on a user terminal (step S810). In this case, the received signal includes the first attitude data (chair identification information, chair position, etc.).

When selecting a chair to be detailed in the list, a detailed request is transmitted (step S815). High speed data (including information on the current state of the chair) is transmitted in real time Visualization, and renewal so as to provide a service (step S820). The high-speed transmission of data using the connection can be expected to reduce the bi-directional communication function and the input delay of the user in the exercise and game application using the smart IoT chair as the input device.

Referring again to FIG. 1, an application providing a seating posture monitoring service may be installed in the user terminal 210 and be driven. The application can extract iBeacon data (attitude data) transmitted from the smart IOT chair 100 and visualize and display the extracted data.

In this case, among the various iBeacon signals, a method for distinguishing the iBeacon signals corresponding to the smart IoT chair 100 is as follows. Of the packet structure of the iBeacon data, the UUID has 16 bytes of data, which can represent 3.40 x 1038 data. The range of 8 bytes, about 1.84 x 1019, would be sufficient to indicate the location of all buildings, so the remaining 8 bytes could be used as the service identification number for the Smart IoT chair. That is, among the 16 bytes belonging to the UUID among the iBeacon data, 8-byte chair position information and 8-byte service identification information (related to the sitting posture monitoring service) can be included.

Next, consideration should be given to how to distinguish between different chairs in the same building. By using 2 bytes as the major value, data from 0 to 65535 can be used, but it can be implemented so that the chair name can be specified when registering the first chair instead of the number in consideration of the general user.

FIG. 9 shows a demonstration photograph of an application driven by the user terminal 210. FIG. (a) is a screen displaying an iBeacon list to search for smart IoT chairs. Ibeacon of pebble company is being searched in the state that it does not implement the job of filtering only the service number corresponding to the smart IoT chair. (b) is a screen for selecting a chair on the screen (a) and registering the chair in the application. After registering the chair, if you look at the chair list, the name registered in the NAME part together with the registered chair is displayed as shown in (c). If you select a chair, you can switch to a screen that shows the state of the chair according to the data received after connection is made as shown in (d).

10 is an exemplary view showing the operation of the Smart IoT chair and the application according to the present embodiment.

The drawings from (a) to (f) are captions of screens viewed in an application by each posture. In each drawing, the left side is the actual user's sitting posture, and the right side is the screen in which the application visualizes the data. In the application screen, the user is intuitively seated on the sitting position by expressing that the user is sitting on the red line. In addition, a step of each sensor may be displayed at the bottom of the application screen.

The smart IoT chair and sitting posture monitoring system according to the present embodiment can be utilized in a simple leisure and posture correction game using a smart IoT chair as an input device. Based on the user's attitude data of the accumulated game, it is possible to induce the user to write in the direction opposite to the direction in which the player normally tilts and sits, thereby helping the user in correcting the posture while enjoying the game. For example, when analyzing a person's sitting pattern, if the person sits sideways at a normal 7: 3 ratio, then when the game is played, You can do it.

In addition, because Bluetooth can be used to collect data through the wireless gateway, it is possible to analyze the habit of sitting in various groups from a large amount of collected attitude data, to make medical advice through analyzing the seating pattern of a specific individual Vibration / sound may be stimulated. For example, if a user has a habit of sitting on the front of a chair when studying and a habit of leaning back when watching a movie, You can leave a message to sit back a little more to fix and fix it. In addition, when the user tilts for a long time, he or she may stimulate the user to perceive vibration or a sound.

Since the relationship between work efficiency and sitting posture habits is well known, it is possible to arrange the smart IoT chair in the office to calibrate the user's posture and increase the efficiency of the user's work just by posture correction. In addition, since the learning efficiency is also closely related to the right attitude in schools and institutes, it is possible to increase academic achievement by arranging Smart IoT chairs. Because the wireless gateway can collect data from multiple users, if the space is occupied by several people like a company or a school, then by gathering the attitude data of the group, the group will be actively involved in posture correction .

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 invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

100: Smart IoT Chair 110: Pressure sensor
120: tilt sensor 130: communication module
140: control module 210: user terminal
220: Wireless gateway 230: Server
310: upper plate 312: first conductive thread
314: first buffer member 320: lower plate
322: second conductive chamber 324: second buffer member
330: conductive film layer 400: switch module

Claims (13)

As a Smart IoT chair with embedded IoT equipment in a seats with separate seating,
A pressure sensor installed at a predetermined position of the seat so as to measure a pressure corresponding to the posture of the seated person;
A tilt sensor installed at a predetermined position of the seat so as to measure a tilt of the seat according to a seating posture;
A communication module for transmitting attitude data to at least one of a user terminal and a wireless gateway in a Bluetooth communication system;
A control module for converting the value measured by the pressure sensor and the value measured by the tilt sensor according to a predetermined packet structure to generate the posture data;
Smart IoT chair that includes.
The method according to claim 1,
Wherein the communication module transmits the attitude data in a Bluetooth communication manner, receives a list request or a detailed request from the user terminal,
Wherein the control module determines the Bluetooth communication mode according to a type of a request from the user terminal.
3. The method of claim 2,
Wherein when the request from the user terminal is a list request, the communication module performs communication using an i-beacon communication method.
3. The method of claim 2,
Wherein when the request from the user terminal is a detailed request, the communication module performs communication using a connection communication method.
The method according to claim 1,
The pressure sensor includes:
An upper plate on which a first conductive yarn is arranged in a zigzag manner on a lower surface of the first conductive yarn, and a plurality of first buffer members are arranged at regular intervals below the first conductive yarn;
A lower conductive plate arranged on the upper surface in a zigzag manner and having a plurality of second buffer members arranged at regular intervals on the second conductive chamber;
And a conductive film layer interposed between the upper plate and the lower plate.
The method according to claim 1,
Wherein the tilt sensor includes a plurality of switch modules that are turned on at different tilt angles.
The method according to claim 6,
Wherein the switch module slidably moves the mercury ball when the mercury ball is present in the body and is inclined by more than a specified angle to connect the pins of the first terminal and the pins of the second terminal to each other.
8. The method of claim 7,
Wherein the tilt sensor includes three switch modules,
The first switch module A is placed horizontally, the second switch module B is placed at a first tilt angle, the third switch module C is placed at a second tilt angle,
Wherein the second inclination angle is twice the first inclination angle.
9. The method of claim 8,
One end of the first switch module A, the second switch module B and the third switch module C are connected to the power source Vcc and the other ends are connected to the switch resistors 2R, 2 / 3R, 0 and the other end of each of the switch resistors is connected to a ground GND, a common resistor R is interposed therebetween,
Wherein a voltage across the common resistor (R) is an output value of the tilt sensor.
The method according to claim 1,
The attitude data uses a UUID of 16 bytes in the message packet structure of the iBeacon data as an identification number for indicating the position where the smart IoT chair is installed, and the 2-byte major value indicates the use of the chair number And a minus value of 2 bytes is used as a value indicating the current state of the chair.
11. The method of claim 10,
The minor value is divided into 2 bits and divided into 6 bits of the left slope (TL), right slope (TR), left front pressure (PLF), left rear pressure (PLB), right front pressure (PRF) Lt; RTI ID = 0.0 > IoT < / RTI > chair.
A method for monitoring a sitting posture performed in a user terminal communicating with a plurality of Smart IoT chairs,
Transmitting a list request to the plurality of Smart IoT chairs;
Receiving first posture data from the plurality of Smart IoT chairs in an iBeacon communication manner;
Analyzing and displaying the first attitude data;
Transmitting a detailed request to a selected Smart IoT chair among the plurality of Smart IoT chairs;
Receiving a second posture data in real time by communicating with a Smart IoT chair that has transmitted the detailed request in a connection communication manner;
And analyzing the second posture data to visualize and display the current sitting posture.
12. The method of claim 11,
Executing a game for guiding the user to write in a direction opposite to the usual habitual sitting direction based on the accumulated user's attitude data;
Further comprising the steps of:

Images