JP2019208958A - Chair management system and management program - Google Patents

Abstract

To acquire and visualize information on movement of a movable part of a chair to provide a user with the visualized information as useful information.SOLUTION: This chair management system MS for managing motion of a chair including a seat 1, a movable part, configured to be movable in a longitudinal direction or a lateral direction with respect to a leg, a non-movable part, is configured to comprise: sensors 61, 62 for acquiring movement information on the seat 1; data processing means 8 for generating motion data for visually grasping the seat 1's motion, on the basis of the movement information of the sensors 61, 62; and a screen Pn, display means for displaying the seat 1's motion on the basis of the motion data generated by the data processing means 8.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a chair management system and a management program used in an office or the like.

  In business forms in recent offices, a chair is indispensable for operating a PC or the like together with a desk. At the same time, the effects on health caused by sitting and working for a long time, the problem of reduced work efficiency, and the like are beginning to be generally recognized.

  From such a background, recently, a new type of chair has been proposed that can move the body while moving the seat back and forth and left and right even when sitting. Such a chair not only reduces the burden on the body from maintaining the same posture during work, and leads to improvement of work efficiency through refresh, but also more and more utilization in the future from the viewpoint of health maintenance and promotion. Is expected.

WO2017-145271

  By the way, such a chair also has no meaning unless it can function. For example, if the sitting posture does not change for a long time or is biased to one of the two because the sitting posture is poor, the effect of the so-called moving chair is reduced by half, and there are times when it is difficult for the user to be aware of it.

  Therefore, not only will a chair that can move the body be provided, but if there is a support system in which the movement of the chair can be visualized and the user can feed back while enjoying it, the user's motivation will be further enhanced. Conceivable.

  However, even though some conventional chairs detect the biological information and sitting state of the seated person and transmit the detected information to the outside, there has been no idea of acquiring and visualizing information related to the movement of the chair.

  An object of the present invention is to provide a chair management system and a program that are useful in promoting utilization of this type of chair from such a new viewpoint.

  In order to achieve this object, the present invention takes the following measures.

  That is, the chair management system according to the present invention manages the operation of a chair configured such that the movable part is movable in the front-rear or left-right direction with respect to the non-movable part. A sensor to obtain; data processing means for generating operation data for visually grasping the operation of the movable part based on movement information of the sensor; and the movable part based on the operation data generated by the data processing means. And display means for displaying the movement of the camera.

  Here, the movable part includes not only the seat and the back but also the movement of the entire chair such as the movement of the elbow and the movement of the back seat. The non-movable part refers to a part that is relatively stationary with respect to the movable part, such as a part that supports the movable part among the components of the chair.

  The present invention can be said to calculate the movement of the seated person by measuring the movement of the chair. With this configuration, the movement of the movable part can be visualized and fed back to the user. For the user, if it is normal, it is re-recognized about how to use the chair and the posture, etc. As a trigger, this will increase the motivation of using the chair, which in turn can promote effective use of the chair.

In order to reduce the size and weight of the functional section of the chair, it may include an information terminal that communicates with the sensor, and the information terminal may be configured to function as the data processing means and the display means. desirable.
The information terminal mentioned here includes a PC, a tablet, a smartphone, and the like.

  In order to reduce the size and weight of the functional unit of the chair and reduce the load on the information terminal, the information unit includes an information terminal that communicates with the sensor and a server that communicates with the information terminal. It is desirable that the server functions as the data processing means and the information terminal functions as the display means.

  The configuration for collectively collecting data, processing data, and displaying includes an information terminal having the function as the sensor, and the information terminal is configured to function also as the data processing means and the display means. Is desirable.

  In the above, the information terminal also has a functional unit as a sensor, and the information terminal has means for temporarily storing, processing, and displaying a series of operation data acquired from the sensor functional unit in the information terminal. It is also preferable.

  In order to grasp whether or not the function of the chair is properly used, the movement information of the movable part is acceleration information in the front-rear or left-right direction, and the data processing means is configured to preset the operation of the movable part. It is desirable to determine whether or not the feature matches, and if it matches, count as a shake to be extracted and generate the number of shakes as motion data.

  A useful function for the user to confirm his / her seating position is that the movement information of the movable part is position information in the front-rear or left-right direction, and the data processing means uses the current information of the movable part as operation data. Examples include a configuration in which data relating to a position is generated and the display means displays the position.

  As a function useful for the user to check his / her seating history, the data processing means is linked with data on the current position of the movable part as operation data, and the display means displays the movement history. What is composed is mentioned.

  By creating a program that causes the computer to function as data processing means in the management system according to any of the above by being read and executed by the computer, the management system of the present invention can be applied to both information terminals and servers. An environment that can be used effectively can be provided.

  According to the present invention described above, a new useful chair management system and management program that can acquire and visualize information related to the movement of the movable part of the chair and provide it as useful information to the user are provided. It becomes possible to do.

The perspective view of the chair with which one embodiment of the present invention is applied. The figure for demonstrating the movement to the front-back and left-right direction of the seat among the operation | movement of the chair. The figure for demonstrating the support structure of the same seat. The figure which shows the hard resource of the management system which concerns on one Embodiment of this invention. The figure which shows the functional block of the data processing means which comprises the management system. The figure which shows the screen which an attitude | position data generation part produces | generates. The graph which shows the relationship between the displacement which concerns on movement of a seat, speed, and acceleration. The figure which shows the screen on which the present attitude data which an attitude | position data generation part produces | generates were displayed. The figure which shows a mode that a attitude | position moves in the screen on which the present attitude data which an attitude | position data generation part produces | generates were displayed. The figure which shows the relationship between the present posture data which an attitude | position data generation part produces | generates, and an alert. The figure which shows the screen on which the attitude | position log | history data which an attitude | position data generation part produces | generates were displayed. The figure which shows the screen on which the attitude | position log | history data which an attitude | position data generation part produces | generates were displayed. The figure which shows the relationship between the acceleration of a chair reference | standard and the acceleration of a setting position reference | standard. The figure which shows the whole structure of a management system. The figure which shows a user's confirmation screen. The figure which shows the management screen of a server. The figure which shows the modification of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 3, the chair Cr to which the management system of the present embodiment is applied is such that the seat 1 that is a movable part is a non-movable part and is a reference point on the chair. It is configured to be movable in the front-rear direction (± D direction) and the left-right direction (± W direction).

  Then, the management system MS constructed including the information terminal Cm such as a personal computer, a tablet, a smartphone, or the like passes through the sensors 41, 42, and 43 with the movement information INF and the seating information SEF for the leg 2 of the seat 1 attached to the chair Cr. Obtaining and generating operation data MD for visually grasping the operation of the seat 1, which is a movable part, in the information terminal Cm based on the information INF and SEF, and displaying means based on the operation data MD The movement of the seat 1, which is a movable part, is displayed on the screen pn of the information terminal Cm.

  As the movable part of the chair Cr, there are a back 5 and a movable elbow (not shown) in addition to the seat 1, and there are several movements including back and forth or left and right directions such as a rocking operation of the back 5 and a turning operation of the movable elbow. Things can be considered. Although the movement of the seat 1 is visualized in the present embodiment, the present invention can naturally be applied to the movement of the back and the movable elbow which are movable parts other than the seat 1.

  Hereinafter, the embodiment in which the seat 1 is a movable part will be described in detail. As shown in FIGS. 1 to 3, the chair Cr is seated on a support base 3 provided on a leg 2 via a support mechanism 4. 1, the support mechanism 4 includes a left / right moving part 41 and a front / rear moving part 42. The support mechanism 4 in the illustrated example is such that the support base 3 supports the left and right moving part 41, the left and right moving part 41 supports the front and rear moving part 42, and the seat 1 is attached to the front and rear moving part 42. The support mechanism 4 as a whole allows the seat 1 to move by superimposing the forward and backward movements and the lateral movements, and moves the seat 1 back and forth and right and left with respect to the legs 2.

  In the illustrated example, the left and right moving portion 41 is suspended and supported by the lower ends of the pair of links 41a and 41a, the upper ends of both links 41a and 41a are attached to the support base 3, and the left and right moving portion 41 moves left and right. Even so, the center of gravity is raised while the moving tip side is inclined downward. The front / rear moving part 42 is supported by the left / right moving part 41 by a slide support part formed by a guide hole 42b provided in the front / rear moving part 42 and a follower 41b provided in the left / right moving part 41, and the rear end is The lower end of the link 42c is suspended and supported, and the upper end of the link 42c is attached to the left and right moving part 41. Even if the front and rear moving part 42 moves back and forth, the moving front end side is inclined downward, and the center of gravity is Configured to lift. As a result, even if the seating load applied to the seat 1 at the destination of movement is lost, the chair can return to the reference position of front and rear and left and right by its own weight.

  As described above, this chair moves not only in the front / rear / left / right direction but also in the up / down direction. However, since the displacement in the up / down direction is slight compared to the displacement in the front / rear / left / right direction, the seat 1 in this embodiment is The description proceeds as a chair that moves back and forth or left and right. In FIG. 2, the symbol n indicates the center (reference position) of the leg, and m indicates the position of the center of gravity of the seat 2. In this embodiment, since the back 5 is movable together with the seat 2, the center of gravity of the seat 2 includes the center of gravity of the back 5 that moves together with the seat 2.

  Of course, even if the front / rear moving unit 42 is first supported by the support base 3, the left / right moving unit 41 is supported by the front / rear moving unit 42, and the seat 1 is attached to the left / right moving unit 41, Operation can be realized. Whether the support structure is a slide support mechanism or a link mechanism can be implemented in various combinations. Furthermore, it is a matter of course that a chair that moves in the front-rear direction or the left-right direction, to which the present invention is applied, is also included in a chair that moves the seat 1 or the back 5 only in the front-rear direction and does not move left and right.

Returning to the illustrated chair Cr, the back 5 of the chair Cr is attached to an appropriate portion such as the front-rear moving part 42, the left-right moving part 41 or the support base 3 via the back attaching part 51, and the back Part of the back mounting portion 51 is exposed at a position between the seat 5 and the seat 1 and recessed from the surface that the seated person contacts. Therefore, in this embodiment, in order to configure the management system MS, the sensor box 6 having the sensors 61 and 62 is disposed in the back mounting portion 51, the seating sensor 63 is disposed in the seat 1, and these sensors are disposed. The signals detected by 61, 62 and 63 are transferred to the data processing means 8 via the transmission / reception units 71 and 72 shown in FIG. 4, and the data processing means 8 generates visible motion data for use by the user. Configured as follows. As the transmission / reception units 71 and 72, those based on an appropriate short-range wireless communication standard other than Blue-tooth are used.
Note that a method of estimating the sitting time without using the sitting sensor can also be adopted. This will be described later.

  In addition to the above, the attachment positions of the sensors 61 and 62 can be appropriately selected from positions that do not interfere with the user, such as the lower surface of the seat 1 and the rear surface of the back 5. However, for proper detection, it is desirable that the mounting positions of the sensors 61 and 62 be on the center line in the left-right direction (W direction) of the chair Cr.

  In the present embodiment, the sensor 61 is an acceleration sensor that is one of motion sensors, and the sensor 62 is an orientation sensor that senses geomagnetism and indicates an orientation.

The acceleration sensor 61 is configured to detect, for example, biaxial acceleration, and outputs two acceleration signals. In this embodiment, one axis is set to detect the front-rear direction (D direction) of the chair, and the other one axis is set to detect the left-right direction (W direction) of the chair. Hereinafter, the accelerations detected by this will be referred to as α _D and α _w . That is, these accelerations α _D and α _w are accelerations on a coordinate system with the front-rear direction and the left-right direction as two orthogonal axes when viewed on a chair basis.

  Further, the direction sensor 62 detects which direction the chair Cr is directed in the state of being attached to the chair Cr. In this embodiment, description will be made on the assumption that the direction of the front of the seat 1 with respect to the geomagnetism N is output as the angle signal θ. That is, as shown in FIG. 6, the azimuth sensor 62 has an absolute reference, such that θ = 0 if the front of the seat 1 faces north “N” and θ = 90 ° if it faces the east “E”. The detected value θ in the range of 0 ° to 360 ° is output.

  The seating sensor 63 shown in FIGS. 1 and 4 is a limit switch embedded in the lower surface of the seat 1, and when a user is seated, a pressing portion (not shown) is pressed and turned ON, and when the user leaves the seat, the pressing portion is returned by a spring. It is of the weight detection type that is turned off. This signal is transmitted to the data processing means 8 side, and the data processing means 8 manages the sitting time. The estimation method when the seating sensor 63 is not used is regarded as a seating state while the acceleration sensor 61 outputs a signal, and the output is stopped and a predetermined time (for example, 3 minutes) has passed and it is determined that the user is away. .

  On the other hand, as shown in FIG. 4, the data processing means 8 includes hardware resources such as a display means (DP) 8d and an input device (ENT) 8e in addition to the CPU 8a, the memory 8b and the interface (I / F) 8c. It is comprised by information terminals Cm, such as a personal computer, a smart phone, and a tablet provided with. In the memory 8b, a chair management program Pr according to the present embodiment is written in advance. The management program Pr is called and executed by the CPU 8a, so that the information terminal Cm is used as the posture determination unit 81, the posture data generation unit 82, the calorie consumption calculation unit 83, the seating time calculation unit 84, and the like shown in FIG. Make it work.

  The “posture” here refers to the posture of the seat 1 with respect to the leg 2, for example, “post-tilt posture”, “post-tilt posture”, “left-tilt posture”, “right-tilt” In addition to “posture”, “posture history” such as “sway” and “movement locus”, which is a temporal change of the posture, is included. The main function of the management program Pr is to judge these attitudes and display them on the screen. For example, FIG. 8 shows that the chair Cr is tilted to the right through the object MO indicating the seated person, and FIG. 9 shows the movement of the chair Cr through the object MO showing the seated person. 11, a history of shaking of the chair Cr is displayed through the object MO indicating the seated person. These will be described later.

  This is not limited to seat 1. Even if the movable part is a movable elbow (not shown), there are some which are configured to move substantially horizontally in the front / rear and left / right directions or turn to move to the chest of the user. With such a configuration, the posture and the posture change of the movable elbow in the front-rear or left-right direction can be managed by the management system and the management program of the present invention as described above. Further, when the movable part is a back, there is a structure in which the back is supported so as to be tilted backward with respect to the seat, and the back seat is interlocked to perform a synchro-rocking operation. In such a case, the angle in the backward tilt direction and the change in angle can be handled by the management system and the management program of the present invention as the posture or the posture change in the back and forth direction or the left-right direction of the movable portion.

  Hereinafter, returning to the present embodiment in which the movable part is the seat 1, each function of the data processing means 8 will be described.

  The posture determination unit 81 shown in FIG. 8 determines a position determination unit 81a that determines the position of the seat 1 in the front-rear or left-right direction, a position change determination unit 81b that determines the position change, and determines whether the seat 1 swings in the front-back or left-right direction. A swing determination unit 81c is included. In addition, the posture data generation unit 82 generates current posture data (real-time posture data) 82a that is data related to the current position of the seat 1, posture history data 82b that is a history thereof, shaking frequency data 82c, and the like as operation data.

  The posture determination unit 81 performs calibration at the start of use in order to make the position determination unit 81a and the position change determination unit 81b function.

As shown in FIG. 6B, the calibration is performed such that, for example, the chair Cr faces the desk Dk when sitting, and the center m of the seat 1 shown in FIGS. It is executed when the user operates the execution button on the information terminal Cm in a state where the user is positioned at the center position n, that is, the reference position where the weight returns. As a result, the front and rear position and the left and right position of the seat when viewed on a chair basis
(D, W) = (0, 0)
And the orientation of the chair Cr is associated with the orientation of the geomagnetism. For example, if calibration is performed when the front direction (D direction) of the chair is shifted by an angle θ _{0 with} respect to the N direction of geomagnetism, the position where θ (= θ ₀ ) is detected (D, Initially set as W) = (0, 0). Then, if the chair subsequently rotates by δθ, the detected value θ of the azimuth sensor 62 corresponds to θ ₀ + δθ. Therefore, the rotational phase angle δθ on the relative coordinates with respect to the desk DK of the seat 1 at this time is θ−θ Calculated as ₀ .

  FIG. 11 shows a state in which the chair Cr is rotated by δθ in the negative direction through the user object MO, and the front and rear, left and right DW coordinates when viewed from the chair reference are rotated by the same angle with respect to the XY coordinates of the installation destination. ing. In this state, when the seat 1 is moved back and forth and left and right or shakes, the display of the object MO is moved in the D direction and / or the W direction from the illustrated position.

Hereinafter, an algorithm for detecting the movement of the chair 1 will be briefly described.
If the seat 1 does not rotate, the XY coordinates of the installation reference base 1 coincide with the chair reference DW coordinates as shown in FIG. 13A, and the acceleration (αx, αy of the seat 1 on the XY coordinates). ) Is equal to the acceleration (α _W , α _D ) on the DW coordinate. That is,
αx = α _W
αy = α _D
It is.

  However, as shown in FIG. 13B, the seat 1 rotates and moves forward, backward, left and right on the DW coordinates on the chair position at the rotational position.

Therefore, the position change determination unit 81b shown in FIG. 5A uses the data (α _D , α _W ) of the acceleration sensor 61 in the biaxial direction and the output θ of the azimuth sensor 62 shown in FIG. 6B. The acceleration (αx, αy) on the coordinates (X, Y) based on the installation destination is determined as follows. fx and fy are general coordinate conversion functions.
αx = fx (α _D , α _W , δθ)
αy = fy (α _D , α _W , δθ)

The position determination unit 81a shown in FIG. 5A integrates the acceleration (α _x , α _y ) handled by the position change determination unit 81b for each axis, thereby changing the current speed (dx / dt, dy / dt) and the coordinates (X, Y) of the current position of the movement destination moved from the first position are calculated by the following equation, for example.
(Dx / dt, dy / dt) = (∫α _x dt, ∫α _y dt)
(X, Y) = (∬α _x d ² t, ∬α _y d ² t)

  Thus, regardless of the orientation of the chair Cr, and even if the seat 1 moves back and forth and left and right (tilt) with respect to the chair, the current position of the seat 1 on the XY coordinates of the installation destination reference And the current posture such as its orientation, or its time change can be tracked. Of course, these current speed and current position calculation methods are merely examples. For this reason, taking into account the sensor characteristics, sampling period, or error accumulation state, various approximation formulas are used, timely correction is performed, and the current posture is calculated by a generally different calculation method. Needless to say, the time change can be calculated.

The swing determination unit 81c shown in FIG. 5A takes in the data (α _D , α _W ) of the acceleration sensor 61 and determines that the seat 1 is “swing” when it satisfies a predetermined condition. Since the swing does not depend on which direction the chair is facing, if there is data (α _D , α _W ) of the acceleration sensor 61 in determining the swing, it is converted into the XY coordinate system data of the installation destination standard. It is not always necessary to convert.

  Normally, when the chair Cr is swung like a pendulum, as shown in FIG. 7, waves representing displacement-velocity-acceleration appear periodically with a phase shift. For example, if the front of the seat is a positive displacement, the displacement swings to the maximum positive at the front end (time t1, t5), and swings to the maximum negative at the rear end (time t3). The speed becomes 0 at the front end (time t1, t5) and the rear end (time t3), and takes a negative maximum value and a positive maximum value during the backward or forward movement between them (time t2, t4). The acceleration becomes zero when the speed increases and decreases, that is, when the seat 1 passes through the center of the leg 2, that is, the reference position (time t2, t4), and is negative at the front end and the rear end where the direction of movement changes before and after the stop. Or a positive maximum value (time t1, t3, t5). Therefore, simply considering that the zero cross points where the polarity of the acceleration detected by the acceleration sensor 61 is switched appear in two places, it can be counted as one reciprocation of the seat 1.

  However, even if the same seat 1 is shaken, if the seat 1 is gently moved, the acceleration becomes zero, that is, close to a uniform motion, and cannot be said to be “sway”. In order to judge “shake”, it is necessary to alternate the accumulated energy and kinetic energy due to gravity, springs, etc. like a pendulum. To this end, in addition to the reversal of the sign of acceleration, the maximum acceleration is effective at least to some extent. It is necessary to have a value with sex. Therefore, providing a threshold value for the absolute value of the detected acceleration and exceeding the threshold value is also necessary as a determination criterion for “sway”.

  Furthermore, the movement of the occupant using the seat 1 of the chair Cr is the swing of the seat in the front-rear direction (D direction) (corresponding to pitching), the swing in the left-right direction (W direction) (corresponding to rolling), the vertical axis It consists of a torsional rotation (equivalent to yawing), or a combination of these, and a combination of operations unique to the chair Cr not corresponding to these, and operations characteristic of the user. Furthermore, the movable range of the seat 1 has a characteristic configuration inherent to the chair such that the front-rear direction is wider than the left-right direction, and the rear side is wider than the front side in the front-rear direction. As described above, the nature, size, and characteristics of the swaying that are assumed vary with respect to the front-rear, left-right, and torsional directions.

In order to supplement such various movements, the swing determination unit 81c shown in FIG. 5A includes not only acceleration data α _D and α _W input as movement information but also orientation data θ of the chair Cr. Thus, conditions such as polarity and threshold necessary for judging “swing” from both waveforms are determined.

Further, as shown in FIG. 5 (b), the shaking determination unit 81c previously patterns the magnitude and direction of the acceleration of the seat 1, the rotation of the seat 1, the movement locus, etc. for each characteristic movement of the seat 1. The vibration reference data ref is stored, and the vibration reference data ref and the acceleration data α _D and α _{W of the} seat 1 actually detected as the movement information inf, the bearing direction data θ of the seat, etc. are used for pattern matching, etc. Compared by technique, the closest motion pattern is extracted, and based on the shake condition set in advance for each motion pattern, it is determined whether or not it is “shake” from the actual data, and the number of shakes data is generated It may be configured to.

  The posture data generation unit 82 shown in FIG. 5 generates current posture data 82a for displaying the current position calculated by the position determination unit 81a of the posture determination unit 81 on the XY coordinates. FIG. 6A shows the current posture data 82a displayed in the posture display field F0 on the screen Dp of the information terminal Cm as the display means. The posture display field F0 is obtained by superimposing the chair reference coordinates (D, W) on the installation destination reference coordinates (X, Y), and includes a circle representing the seated person's head and a triangle representing the sitting nose. An object MO representing a seated person is displayed, and the position and orientation of the seat 1, which is a movable part, are represented through the object MO. If the seat 1 rotates, the dynamic object on the screen also rotates as shown in FIG. 11, and if the seat 1 moves horizontally back and forth and left and right, the dynamic object on the screen also moves back and forth and left and right as shown in FIG. This is what we have already said.

  In addition to the posture display field F0, this screen Dp is provided with an alert display field F1, a seating time display field F2, a swing count display field F3, and a consumption Cal field F4. In these fields F1 to F4, in addition to current posture data 82a, posture history data 82b, and shaking count data 82c, which will be described later, the consumption Cal and seating time calculation unit 84 calculated by the consumption Cal calculation unit are described. The calculated seating time is displayed. This will be described below.

  The alert display is made to let the user know whether the posture is good or bad. In performing the alert display, the posture data generation unit 82 is set to classify the position of the seat 1 on the DW coordinates into 16 sections as shown in FIG. 10, and the current position corresponds to “6”, for example. For example, the alert message is extracted from the alert message column prepared in the right column of FIG. 10 in advance, and a display indicating that the position of the center of gravity of the seat 1 is slightly tilted to the right is made. Incidentally, in the state of FIG. 9, the center of gravity position of the seat 1 corresponds to the above-mentioned category 6, so that “slightly tilted to the right” is displayed in the alert display field F1, and the state of FIG. Since it corresponds to the category 1, “already balanced” is displayed in the alert display field F1.

  The posture data generation unit 82 also generates posture history data 82b. The posture history data 82b captures the position on the absolute coordinate (X, Y) of the seat 1 determined by the position determination unit 81a of the posture determination unit 81 as one piece of log information for each predetermined sampling period Δt. , Remembered. Then, the posture history data 82b is displayed as shown in FIG. 11 in the posture display field F0 on the screen Dp which is a display means. In FIG. 11, the elapsed time (9 seconds) after the start of sitting is displayed in the sitting time display field F2, and the posture history data 82b is plotted in the posture display field F0 as the posture history during this time.

  The seating time is counted by the seating time calculation unit 84 of the data processing unit 8. The seating time calculation unit is configured to count the elapsed time from the start of seating when the seating sensor 63 described above is turned on and stop counting when the seating sensor 63 is turned off. It is displayed in the sitting time display field F2 of FIG. When not using the seating sensor 63, the elapsed time after the acceleration sensor 61 starts outputting a signal is counted.

  The posture history is based on the log information at regular intervals as described above, as well as by plotting the swing position at peak-to-peak with the largest amplitude as a point and connecting the points with a line. In addition, the posture history can be displayed as shown in FIG.

  Further, the posture data generation unit 82 shown in FIG. 5 generates the number-of-swings data 82c by counting the number of times of shaking when the shaking determination unit 81c determines “shake”, and the number of times of shaking field F3 on the screen is generated. Displays the number of shaking. In FIG. 11, it is displayed that the camera shakes 21 times in 9 seconds.

  5 generates seating position analysis data as one of the posture history data 82b. In this analysis data, the ratio of the stay time is calculated by calculating the ratio of the position where the user often moves the seat 1 within a predetermined time in the unit of the section of the seat 1 shown in FIG. Thus, the analysis data is displayed in the posture display field F0 as shown in FIG. In this case, it is displayed that 70% is in the center (section 1) and 25% is slightly behind (section 10). In addition, since the trend is slightly behind, the alert display field F is displayed as “tilt a little later”.

  Furthermore, the data processing means 8 shown in FIG. It is known that calorie consumption can generally be measured through expiration. Even with the same amount of exercise, the calorie consumption varies depending on the speed and acceleration of moving a predetermined distance and the weight. Therefore, various tests were conducted on the relationship between the acceleration when the seat was swung with various accelerations while sitting on the chair Cr, the weight of the user, and the calorie consumption through exhalation. Is input in advance, an arithmetic expression for calculating calorie consumption is created in advance and stored in the memory 8b. And the consumption Cal calculation part 83 calculates a calorie consumption based on the body weight registered beforehand and the frequency | count of shaking frequency 82c produced | generated through the judgment of the shaking judgment part 81c, and the consumption Cal display field F4 shown in FIG. The consumption Cal after sitting is displayed. In this screen, it is displayed that the shaking is made 21 times during the sitting time of 9 seconds and the consumption Cal is 0.96.

  The management system MS is also set with a mode for calling attention to the fact that the person is sitting too much, that is, the state where the body is not moved is maintained from the sitting time and the calorie value due to shaking. Specifically, for example, if a calorie is not consumed more than a predetermined cal (3 kcal) in a predetermined time (60 minutes), a character such as “I'm sitting too much. It appears on the measurement display screen.

  Further, as shown in FIG. 14, the management system MS sends operation data from the information terminals Cm1, Cm2,... Cmj to the server SV, and the server SV has a chair Cr1, Cr2,. Manage the usage status. For this purpose, when the application is started, first, the user ID and the password PW are requested to be input together with the pairing of the transmission / reception units 71 and 72 shown in FIG. 4, and information about the use of the chair Cr is acquired for this user. It is configured to be sent to the server SV.

  In the information terminal Cm, as shown in FIG. 15, a program for displaying a list of date, sitting time, number of shakings, consumption Cal, posture determination, etc. is executed as needed. The posture determination is a column for displaying the analysis result and the like shown in FIG. “Playback” is a command for displaying the posture history at any time in the posture display field F0. Users can check their usage status at any time using this screen.

  On the other hand, FIG. 16 shows a management screen of the server SV. A part of the management program Pr is also executed at any time in the server SV. This management screen displays a list of ID, name, age, sex, occupation, sitting time, number of shaking, consumption Cal, posture determination, and the like. This management program Pr can be browsed by a request of an authorized person, and processing of the program and stored data is permitted. With this authority, for example, it is possible to set and use such that an alert is displayed on the information terminal Cm from the server SV for a user whose number of shaking per unit time is less than a threshold value.

  As described above, the chair management system MS according to the present embodiment manages the operation of a chair configured such that the seat 1 which is a movable part can be moved in the forward or leftward direction with respect to the leg 2 which is a non-movable part. Sensors 61 and 62 for acquiring movement information of the seat 1, and data processing means for generating operation data for visually grasping the movement of the seat 1 based on the movement information of the sensors 61 and 62 8 and a screen Pn which is a display means for displaying the movement of the seat 1 based on the operation data generated by the data processing means 8.

  If comprised in this way, the movement of the seat 1, which is a movable part, can be visualized and fed back to the user. This will increase the motivation to use the chair and thus promote the effective use of the chair.

In particular, when acquiring movement information of the seat 1, which is a movable part, (1) only movement information of the seat 1, which is a movable part, is acquired by a sensor, and movement information with respect to the ground of the seat 1, which is a movable part, is calculated. (2) A mode of obtaining relative movement information of the seat 1 as a movable part with respect to the non-movable part by calculation processing, wherein the movement information of the non-movable part is predicted and subtracted by calculation. 3) A mode in which a sensor is attached to both the seat 1 which is a movable part and the non-movable part, for example, the leg 2, and a subtraction operation is performed to obtain relative movement information of the seat 1 which is the movable part with respect to the leg 2 which is the non-movable part. Contains.
The aspect (3) has the highest accuracy, but requires many sensors. On the other hand, in the present embodiment, since the aspect (1) is adopted, the object can be achieved at a low cost by suppressing the number of sensors and the calculation process.

  Further, the management system MS includes an information terminal Cm that communicates with the sensors 61 and 62, and this information terminal Cm functions as the data processing means 8 and the screen Pn that is a display means. Due to the function separation, it is sufficient to provide only the sensors 61 and 62 on the chair Cr side, and the functional portion of the chair Cr can be reduced in size and weight.

  In addition, a server SV that communicates with the information terminal Cm is included, and the server SV stores at least the operation data transmitted from the information terminal Cm in association with the chair user. While managing the user's situation collectively, the collected data can be effectively used as big data.

  In the management system MS, the sensor includes an acceleration sensor 61. Thus, if at least the acceleration sensor 61 is employed, the speed and position can be obtained by calculation in addition to the acceleration, and the differential processing is not necessary, so the calculation load is small. Therefore, it is possible to accurately detect a small shake that is difficult with the current GPS or the like.

  In this case, since the acceleration sensor 61 is configured to detect biaxial acceleration along a plurality of different directions, the movement of the planar movable portion can be accurately captured. Of course, if there are three or more axes, it is possible to detect the movement of the three-dimensional or four or more multi-dimensional movable parts.

  Speaking of the present embodiment, the sensor is configured by using the acceleration sensor 61 and the orientation sensor 62 in combination, so that the position and orientation of the seat 1 are appropriately displayed in the orientation display field F0 of FIG. Can do.

  In detail, the movement information of the seat 1, which is a movable part, is acceleration information in the front-rear or left-right direction, and the data processing means 8 determines whether the operation of the seat 1 matches a preset feature. If they match, they are counted as shakes to be extracted and the number of shakes as motion data is generated, so that it is possible to appropriately grasp whether or not the function of the swinging chair is used appropriately.

  Further, the movement information of the seat 1 is the acceleration information in the front-rear or left-right direction, and the data processing means 8 compares the shaking reference data ref relating to a plurality of behaviors stored in advance with the shaking indicated by the nearest shaking reference data ref. When it is determined that there is, it is possible to appropriately perform the shaking determination even when the seat 1 moves in a complicated manner.

  Moreover, since the data processing means 8 is comprised so that a user's calorie consumption may be calculated based on the frequency | count of shaking, it can be utilized for enlightenment which performs a light exercise | movement using a shaking chair.

  Further, the movement information of the seat 1, which is a movable part, is position information in the front-rear or left-right direction, and the data processing means 8 generates data relating to the current position of the seat 1 as operation data, and the screen Dp, which is a display means, is displayed. Since it is comprised so that the position of the movable part with respect to a non-movable part may be displayed, a useful function can be provided when a user confirms his / her seating position.

  In this case, the data processing means 8 is configured so that the movement data of the seat 1 relative to the non-movable part is displayed on the screen Dp as the display means by linking data relating to the current position of the seat 1 as the movable part as the operation data. Therefore, it is possible to provide a useful function for the user to check his / her seating history.

  Then, by creating a program that causes the computer to function as data processing means in the management system described in any of the above by being read and executed by the computer, the present embodiment is implemented in both the information terminal Cm and the server SV. The form management system MS can be used effectively.

  As mentioned above, although one Embodiment of this invention was described, the specific structure of each part is not limited only to embodiment mentioned above.

  Further, as shown in FIG. 17, an information terminal Cm that communicates with the sensor 61 and the like and a server SV that communicates with the information terminal Cm are included. The management system may be constructed such that it functions and the information terminal Cm plays the role of the screen Dp that is a display means.

  With this function separation, only the sensor 61 needs to be provided on the chair side, and the functional portion of the chair is reduced in size and weight. Moreover, since the data processing is performed by the server SV, the data processing from a plurality of information terminals Cm can be collectively handled by the server SV and used for central management. Along with this, it is possible to distribute the load by giving each information terminal Cm only the role of display.

  Of course, if the smartphone has functions of an acceleration sensor and a direction sensor, the smartphone itself may be set at an appropriate position on the chair to detect information related to movement of the movable portion in the planar direction. In this way, as long as there is an information terminal, it is not necessary to use a separate sensor.

  Of course, there may be a mode in which a smartphone is used only as a sensor and a PC as an information terminal is used as a data processing unit or a display unit.

  Further, in each of the above configurations, the information terminal is configured to have a functional unit as a sensor, and a series of operation data acquired from the sensor functional unit is temporarily stored in the information terminal, processed, and displayed. Of course, the information terminal may have the means.

  If the accuracy of the GPS is improved, it becomes possible to detect the seating position, the azimuth, the history, etc. by using only the GPS instead of the azimuth sensor or the acceleration sensor.

  Other configurations can be variously modified without departing from the spirit of the present invention.

1 ... Movable part (seat)
2 ... Non-movable part (leg)
8 Data processing means 61 Acceleration sensor 62 Direction sensor Cm Information terminal INF Movement information Pn Display means (screen)
Pr ... management program ref ... reference data

Claims (9)

The movable part manages the operation of the chair configured to be movable in the front-rear or left-right direction with respect to the non-movable part,
A sensor for acquiring movement information of the movable part;
Data processing means for generating operation data for visually grasping the operation of the movable part based on movement information of the sensor;
Display means for displaying the movement of the movable part based on the operation data generated by the data processing means;
A chair management system comprising: The chair management system according to claim 1, further comprising an information terminal that communicates with the sensor, wherein the information terminal functions as the data processing unit and the display unit. Including an information terminal that communicates with the sensor and a server that communicates with the information terminal, the server functions as the data processing means, and the information terminal functions as the display means, The chair management system according to claim 1. The chair management system according to claim 1, further comprising an information terminal having a function as the sensor, wherein the information terminal also functions as the data processing unit and the display unit. The information terminal also has a function unit as a sensor, and the information terminal has means for temporarily storing, processing, and displaying a series of operation data acquired from the sensor function unit in the information terminal. The chair management system according to any one of claims 2 to 4. The movement information of the movable part is acceleration information in the front-rear or left-right direction, and the data processing means determines whether or not the operation of the movable part matches a preset feature, and extracts if it matches. The chair management system according to any one of claims 1 to 5, wherein the chair management system is configured to generate the number of swings as motion data by counting as swings to be performed. The movement information of the movable part is position information in the front-rear or left-right direction, the data processing means generates data relating to the current position of the movable part as operation data, and the display means displays the position. Item 7. The chair management system according to any one of Items 1 to 6. The chair management system according to claim 7, wherein the data processing unit includes data relating to a current position of the movable unit as operation data, and the display unit displays a movement history. A program that causes a computer to function as data processing means in the management system according to claim 1 by being read and executed by the computer.