JP7473856B2 - Seat System - Google Patents

Description

The present invention relates to a seat system having a seat with a sensor.

Conventionally, a vehicle seat is known in which multiple pressure sensors are arranged on the seat to detect the seating position of the occupant (Patent Document 1).

JP 2017-65504 A

However, conventional vehicle seats only evaluate and indicate the driver's seated posture, which means they cannot be used very effectively.

The present invention aims to provide a seat system that allows an occupant in a seat to use information obtained from other seats in an environment where seats equipped with sensors are installed in various locations, in order to propose new value for seats.

In order to solve the above-mentioned problems, the seat system according to the present invention comprises a first seat having a first seat body and a first sensor provided on the first seat body to obtain first information for detecting the physical condition of an occupant sitting on the first seat body, a second seat having a second seat body and a second sensor provided on the second seat body to obtain second information for detecting the physical condition of an occupant sitting on the second seat body, a mobile terminal capable of communicating with the first seat and the second seat and capable of calculating a first evaluation value that is an evaluation value of the physical condition of the occupant based on the first information and a second evaluation value that is an evaluation value of the physical condition of the occupant based on the second information, and a data storage unit that stores the first evaluation value and the second evaluation value as integrated data.

According to this configuration, when an occupant is sitting in the first seat, the occupant can obtain first information from the first seat using the mobile terminal and calculate a first evaluation value from the first information. Also, when an occupant is sitting in the second seat, the occupant can obtain second information from the second seat using the mobile terminal and calculate a second evaluation value from the second information. The first evaluation value and the second evaluation value calculated by the mobile terminal are then accumulated as integrated data by the data accumulation unit. Therefore, in an environment where seats with sensors are installed in various locations, an occupant sitting in a specific seat can use information obtained from other seats.

The mobile terminal may also have the data storage unit.

This eliminates the need for a server with a data storage unit, simplifying the configuration of the seat system.

The seat system may further include a server capable of communicating with the mobile device, and the server may have the data storage unit.

This eliminates the need to provide a data storage unit on the mobile device, saving on storage capacity on the mobile device.

The mobile device may also be capable of acquiring the data integrated by the server from the server, and may notify the seat occupant of the data acquired from the server.

This allows the data integrated by the server to be notified to the seat occupant via their mobile device, allowing the seat occupant to make effective use of the data.

The first sensor and the second sensor may be pressure sensors, and the mobile terminal may be capable of calculating the amount of motion of the seated occupant as the first evaluation value based on a first pressure value as the first information, and may be capable of calculating the amount of motion of the seated occupant as the second evaluation value based on a second pressure value as the second information.

In this way, the amount of exercise performed by the seated person is used as an evaluation value, so the seated person's integrated amount of exercise can be referenced, enabling the seated person to understand their own physical condition.

According to the configuration described in claim 1, in an environment where seats with sensors are installed in various locations, a person sitting in a specific seat can use information obtained in other seats.

In addition, if the mobile terminal has a data storage unit, a server is not required, which simplifies the configuration of the seat system.

In addition, if the server has a data storage unit, there is no need to provide a data storage unit in the mobile terminal, which saves on the storage capacity of the mobile terminal.

In addition, the data integrated by the server can be notified to the seated person via a mobile device, allowing the seated person to make effective use of the data.

In addition, by using the amount of exercise of the seated person as an evaluation value, it is possible to refer to the integrated amount of exercise of the seated person, thereby enabling the seated person to understand their own physical condition.

FIG. 1 illustrates a seat system according to an embodiment. FIG. 2 is a diagram illustrating a configuration of a seat system. FIG. 2 is a block diagram illustrating a configuration of a mobile terminal. 13 is a graph showing changes in pressure obtained during a 100m sprint game. 11 is a flowchart showing a process on the smartphone. FIG. 13 is a diagram showing a start screen of a sheet application. FIG. 13 is a diagram showing a screen displaying the total number of steps. FIG. 13 is a diagram showing a seat system according to a first modified example. FIG. 11 is a block diagram illustrating a configuration of a seat system according to a first modified example. 13 is a flowchart showing a process in a smartphone according to a first modified example. 13 is a flowchart showing a process in a server according to a first modified example. 13 is a flowchart showing a process in a smartphone according to a second modified example. FIG. 13 is a diagram showing a start screen when presenting a 100-run game in the second modified example. FIG. 13 is a diagram showing a start screen when a break is presented in the second modified example. 13 is a flowchart showing a process performed by a smartphone according to a third modified example. FIG. 13 is a diagram showing a screen displaying the current weight and weight history in the third modified example. FIG. 13 is a diagram showing a state in which measured weight is notified on a home screen in the third modified example.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the seat system 1 includes a child seat 2 as an example of a first seat, a cart-attached chair 3 as an example of a second seat, and a smartphone SP as an example of a mobile terminal.

The child seat 2 is a seat for a child that is attached to a vehicle seat S that is installed in a vehicle CR. The cart-attached chair 3 is a seat for a child that is installed in a shopping cart SHC that is available in supermarkets, home improvement centers, etc. In the present invention, front, back, left, right, up and down are based on an occupant P sitting in the child seat 2 or cart-attached chair 3.

As shown in FIG. 2, the child seat 2 comprises a first seat body 20 and a first control device 200. The first seat body 20 has a seat cushion 21 and a seat back 22. The seat cushion 21 and the seat back 22 each include a cushion pad and a skin covering the cushion pad. The cushion pad is made of urethane foam or the like, and is supported by a frame (not shown). The skin is made of fabric or the like.

The seat cushion 21 has multiple pressure sensors PS1 to PS3 under the surface. The pressure sensors PS1 to PS3 are an example of a first sensor, and acquire measured values that are the first information for detecting the physical condition, or more specifically, the movement, of the seated occupant P sitting in the first seat body 20. The pressure sensors PS1 to PS6 are positioned so that they can detect the condition of the seat surface facing the seated occupant P sitting in the first seat body 20, and acquire pressure values from the seated occupant P sitting in the first seat body 20.

The pressure sensors PS1 to PS3 are provided in pairs symmetrically on the left and right sides of the child seat 2 with respect to the center of the child seat 2 on the left and right sides.
Specifically, the pressure sensors PS1 and PS2 are disposed at positions on the seat cushion 21 corresponding to the buttocks of the seated occupant P. The pressure sensors PS1 and PS2 constitute a first cushion sensor SC1 that measures pressure from the buttocks of the seated occupant P. The pressure sensor PS2 is disposed in front of the pressure sensor PS1. Note that the first cushion sensor SC1 may include only one of the pressure sensors PS1 and PS2.

The pressure sensor PS3 is located under the thighs of the seated occupant P. The pressure sensor PS3 constitutes the second cushion sensor SC2 that measures the pressure value from the thighs of the seated occupant P. The pressure sensor PS3 is disposed in front of the pressure sensor PS2.

Note that the pressure sensors PS1 to PS3 are elements whose electrical resistance changes depending on, for example, external pressure, and the greater the pressure value, the higher (or lower) the voltage of the detection signal.

The first control device 200 is connected to the pressure sensors PS1 to PS3 so as to be able to acquire pressure values from each of the pressure sensors PS1 to PS3. The first control device 200 is capable of transmitting information detected by each of the pressure sensors PS1 to PS3 to the smartphone SP.

More specifically, a short-range communication device 210 that enables short-range wireless communication such as Bluetooth (registered trademark) or Wi-Fi (registered trademark) is connected to the first control device 200. The first control device 200 is capable of communicating with the smartphone SP via the short-range communication device 210.

The cart-attached chair 3 comprises a second seat body 30 and a second control device 300. The second seat body 30 has a seat cushion 31 and a seat back 32. The seat cushion 31 and the seat back 32 are made of resin.

The seat cushion 31 is provided with multiple pressure sensors PS4 to PS6. The pressure sensors PS4 to PS6 are an example of a second sensor, and acquire measured values that are second information for detecting the physical condition, or more specifically, the movement, of the seated occupant P sitting in the second seat main body 30. The pressure sensors PS4 to PS6 acquire pressure values from the seated occupant P sitting in the second seat main body 30.

The pressure sensors PS4 to PS6 are provided in pairs symmetrically on the left and right sides of the cart-attached chair 3 with respect to the center of the left and right sides.
Specifically, the pressure sensor PS4 and the pressure sensor PS5 are disposed at positions on the seat cushion 31 corresponding to the buttocks of the seated occupant P. The pressure sensor PS4 and the pressure sensor PS5 constitute a third cushion sensor SC3 that measures pressure from the buttocks of the seated occupant P. The pressure sensor PS5 is disposed in front of the pressure sensor PS4. Note that the third cushion sensor SC3 may include only one of the pressure sensor PS4 and the pressure sensor PS5.

The pressure sensor PS6 is located under the thighs of the seated occupant P. The pressure sensor PS6 constitutes the fourth cushion sensor SC4, which measures the pressure value from the thighs of the seated occupant P. The pressure sensor PS6 is disposed in front of the pressure sensor PS5.

Note that the pressure sensors PS4 to PS6 are elements whose electrical resistance changes depending on, for example, external pressure, and the greater the pressure value, the higher (or lower) the voltage of the detection signal.

The second control device 300 is connected to the pressure sensors PS1 to PS3 so as to be able to acquire pressure values from each of the pressure sensors PS4 to PS6. The second control device 300 is capable of transmitting information detected by each of the pressure sensors PS4 to PS6 to the smartphone SP.

More specifically, a short-range communication device 310 that enables short-range wireless communication such as Bluetooth (registered trademark) or Wi-Fi (registered trademark) is connected to the second control device 300. The second control device 300 is capable of communicating with the smartphone SP via the short-range communication device 310.

The first control device 200, the second control device 300, and the smartphone SP each have a CPU, ROM, RAM, rewritable non-volatile memory, etc. (not shown), and execute pre-stored programs. The smartphone SP also has a display DSP.

The smartphone SP is capable of communicating with the child seat 2 and the cart-attached chair 3. In more detail, the smartphone SP has the function of acquiring pressure values from the pressure sensors PS1 to PS3 via the first control device 200, and acquiring pressure values from the pressure sensors PS4 to PS6 via the second control device 300. A seat app is installed on the smartphone SP to provide the seated occupant P with games that can be played based on signals (pressure values) transmitted from the child seat 2 and the cart-attached chair 3.

The seat app according to this embodiment is capable of providing a 100m sprint game to the seated person P. The 100m sprint game is a game in which a character displayed on the display DSP runs based on pressure values transmitted from the child seat 2 or the cart-attached chair 3.

As shown in FIG. 3, the smartphone SP includes a motion detection unit 110, a game processing unit 120, a step count calculation unit 130, a data accumulation unit 140, and an alarm unit 150.

The motion detection unit 110 has a function of acquiring pressure values from the child seat 2 and the cart-attached chair 3 that change according to the motion of the seated person P. When the motion detection unit 110 acquires a pressure value from the child seat 2 or the cart-attached chair 3, it outputs the acquired pressure value to the game processing unit 120 and the step count calculation unit 130.

The game processing unit 120 has a function of executing a 100m sprint game based on pressure values. For example, when an occupant P sitting in the child seat 2 plays the 100m sprint game, the game processing unit 120 acquires pressure values P3R, P3L of the left and right pressure sensors PS3 in the child seat 2. Then, it determines a normal pressure P3n, which is the average pressure of the occupant P sitting at that time, and a threshold value P3th for detecting peaks in the pressure value, and calculates a normal step period TSn, which is the period for moving the average legs of the occupant P.

Specifically, when the seated person P alternately raises his/her legs, the pressure values P3R and P3L change, for example, as shown in FIG. 4. In FIG. 4, the part where the pressure suddenly decreases indicates that the pressure at the pressure sensor PS3 has decreased as a result of the seated person P raising his/her legs. In other words, the pressure value around 140 where the pressure does not decrease becomes the average normal pressure P3n when the legs are not raised. To calculate the normal pressure P3n, for example, the absolute value of the difference between the previous and current values of the pressure values P3R and P3L (this value is the current value P3(n) minus the previous value P3(n-1)) is equal to or less than a predetermined value (i.e., when the change in value is small), and then the current values are tallied and averaged.

The threshold value P3th is a threshold value for determining whether the leg is being raised, and in the case of FIG. 4, for example, a value of about 100 to 120 can be used. Therefore, the threshold value P3th can be a value obtained by multiplying the normal pressure P3n by a predetermined value. For example, the threshold value P3th can be a value obtained by multiplying the normal pressure P3n by a predetermined value of about 0.6 to 0.9.

The normal step period TSn is the average value of the step period TS, which is the time interval between the peaks of the pressure values P3R and P3L.
The pressure values P3R, P3L can be determined to have reached their peak when the difference between the previous value and the current value changes from negative to positive under the condition that each pressure value P3R, P3L is smaller than the threshold value P3th (exceeding it from the upper side to the lower side), and the previous value P3(n-1) at this time can be determined to be the peak value Pm.

When the game processing unit 120 detects peaks in the pressure values P3R, P3L in response to the movement of the seated person P, it calculates the peak value Pm, and calculates the step strength F (FR, FL), which is the magnitude of leg lift, based on the peak value Pm and the normal pressure P3n. The step strength F can be the magnitude of the peak, that is, the value obtained by subtracting the peak value Pm from the normal pressure P3n. In this embodiment, in order to eliminate differences due to the physical size of the seated person P, the value is normalized by the normal pressure P3n. For example, the step strength F is
F = (P3n - Pm) / P3n
Let us assume that.

When the game processing unit 120 calculates the step strength F during the 100m sprint game, it moves the character on the display DSP towards the goal. The amount of movement at this time corresponds to the magnitude of the step strength F. The smartphone SP moves the character, for example, F [m] towards the goal. Note that when acquiring a pressure value from the cart-attached chair 3, the game processing unit 120 also performs the same processing as described above. In the following description, the pressure value acquired from the child seat 2 is also referred to as the "first pressure value", and the pressure value acquired from the cart-attached chair 3 is also referred to as the "second pressure value".

Returning to FIG. 3, the step count calculation unit 130 can calculate a first step count, which is the amount of movement of the occupant P sitting in the child seat 2, as a first evaluation value based on the first pressure value, and can calculate a second step count, which is the amount of movement of the occupant P sitting in the cart-attached chair 3, as a second evaluation value based on the second pressure value. Specifically, for example, the step count calculation unit 130 measures the number of peak values Pm calculated by the game processing unit 120, and obtains this number as the number of steps. The step count calculation unit 130 outputs the measured number of steps to the data accumulation unit 140.

The data accumulation unit 140 has a function of accumulating the first step count and the second step count output from the step count calculation unit 130 as integrated data. Specifically, the step count calculation unit 130 adds up the first step count and the second step count. In addition, in this embodiment, the accumulation of the step count in the data accumulation unit 140 is updated every day. In other words, in this embodiment, the total step count for one day is accumulated in the data accumulation unit 140.

The notification unit 150 has a function of notifying the seated occupant P of the data stored in the data storage unit 140. Specifically, in this embodiment, the notification unit 150 displays the total number of steps stored in the data storage unit 140 on the display DSP. Note that the method of notification by the notification unit 150 is not limited to this, and the notification may be made by voice, for example.

Next, the operation of the smartphone SP (more specifically, the control unit within the smartphone SP) will be described in detail.
When the seat occupant P starts the seat application, the smartphone SP starts the process shown in Fig. 5 (START). In this control, the smartphone SP first determines whether or not it is in a state in which it can communicate with the child seat 2 or the cart-attached chair 3 (S11).

If it is determined in step S11 that communication is not possible (No), the smartphone SP ends this process. If it is determined in step S11 that communication is possible (Yes), the smartphone SP displays the start screen of the 100m sprint game (see FIG. 6) on the display DSP (S12).

After step S12, the smartphone SP determines whether or not the 100m sprint game has been selected (S13). If it is determined in step S13 that the 100m sprint game has been selected (Yes), the smartphone SP executes the 100m sprint game (S14).

After step S14, specifically during the 100m sprint game, the smartphone SP calculates the number of steps based on the pressure value (S15). After step S15, specifically after the 100m sprint game ends, the smartphone SP adds (integrates) the current number of steps to the past number of steps stored in the data storage unit 140 (S16).

After step S16, the smartphone SP displays the integrated number of steps on the display DSP (S17). After step S17, the smartphone SP determines whether or not the user has selected to end the seat app (S18).

If it is determined in step S18 that the selection to end the sheet app has not been made (No), the smartphone SP returns to the processing of step S12. If it is determined in step S18 that the selection to end the sheet app has been made (Yes), the smartphone SP ends this processing.

Next, an example of a specific operation of the smartphone SP will be described in detail.
As shown in Fig. 1, for example, when a seat occupant P (child) in a child seat 2 activates a seat app on a smartphone SP to kill time while heading to a supermarket in a vehicle CR, the process in Fig. 5 is started. If the smartphone SP is in a state where it can communicate with the child seat 2 (S11: Yes), a start screen of a 100m sprint game is displayed on the display DSP of the smartphone SP (S12) as shown in Fig. 6.

On the start screen, a button B1 for starting the 100m sprint game and a button B2 for ending the seat app are displayed. When seated person P selects button B1, the answer is determined as Yes in step S13, and the 100m sprint game is executed (S14).

When the 100m sprint game is finished, the smartphone SP calculates the number of steps for one game and stores them in the data storage unit 140 (S15, S16), and displays the total number of steps for the day stored in the data storage unit 140 on the display DSP (S17, see FIG. 7). When the seated person P plays the 100m sprint game multiple times while in the car, the number of steps for one game is sequentially stored in the data storage unit 140 each time the game ends.

When the vehicle CR arrives at the supermarket and the seated person P selects the end button B2 on the start screen shown in FIG. 6, the smartphone SP ends the seat app. If the seated person P, who is seated in the cart attached chair 3 of the shopping cart SHC while shopping at the supermarket, starts the seat app on the smartphone SP again to kill time, the process in FIG. 5 starts again.

When the smartphone SP is in a state where it can communicate with the cart-attached chair 3 (S11: Yes), as shown in FIG. 6, the start screen of the 100m sprint game is displayed on the display DSP of the smartphone SP (S12). After that, as described above, each time the seated person P plays the game, the number of steps for one game is sequentially accumulated in the data accumulation unit 140. Therefore, the seated person P can know the total number of steps, which is the sum of the number of steps in the vehicle CR and the number of steps on the shopping cart SHC, and can easily know how much exercise the seated person P has performed. In addition, the parent of the seated person P can know the number of steps (amount of exercise) for their child in one day, and can decide the child's future activity plan and meal menu, etc., taking into account the amount of exercise.

As described above, the seat system 1 of the present embodiment can provide the following advantages.
In an environment where seats (2, 3) having pressure sensors are installed in various locations, an occupant P seated in a specific seat can use information obtained in other seats.

By having the smartphone SP have the data storage unit 140, a server as described below is not required, and the configuration of the seat system 1 can be simplified.

The number of steps taken by seated person P, which is the amount of exercise, is used as the evaluation value, so that seated person P can refer to the integrated number of steps taken and understand his/her own physical condition.

Although an embodiment of the present invention has been described above, the present invention can be modified as appropriate as shown in the following other forms. In the following description, configurations that are substantially similar to those in the above embodiment are given the same reference numerals and descriptions thereof are omitted.

In the above embodiment, the data storage unit 140 is provided in the smartphone SP, but the present invention is not limited to this. For example, as shown in Figures 8 and 9, the data storage unit 420 may be provided in a server SV that can communicate with the smartphone SP. Specifically, in the embodiment shown in Figure 8, the seat system 1A includes the child seat 2, cart-attached chair 3, and smartphone SP described above, as well as a server SV.

As shown in FIG. 9, the smartphone SP includes a transmitting unit 160 and a receiving unit 170 instead of the data storage unit 140 in the above embodiment. The transmitting unit 160 has a function of associating the number of steps for one game calculated by the step number calculating unit 130 with identification information corresponding to the seated person P and transmitting it to the server SV. The receiving unit 170 has a function of receiving the total number of steps, which will be described later, transmitted from the server SV and outputting the received total number of steps to the notification unit 150. As a result, the smartphone SP is configured to obtain the data (total number of steps) integrated by the server SV from the server SV and notify the obtained data to the seated person P.

The server SV includes a receiving unit 410, a data storage unit 420, and a transmitting unit 430. The receiving unit 410 has a function of receiving the number of steps associated with the identification information from the smartphone SP. When the receiving unit 410 receives the number of steps associated with the identification information, it outputs the received number of steps together with the identification information to the data storage unit 420.

The data storage unit 420 has a function of accumulating and storing the number of steps acquired from the receiving unit 410 for each piece of identification information. The transmitting unit 430 has a function of transmitting the total number of steps corresponding to the seated person P stored in the data storage unit 420 to the smartphone SP.

In this embodiment, the smartphone SP is configured to execute the process shown in FIG. 10, and the server SV is configured to execute the process shown in FIG. 11. The process shown in FIG. 10 has new steps S31 and S32 instead of step S16 in the process shown in FIG. 5, and the other processes are similar to the process in FIG. 5.

In the process shown in FIG. 10, the smartphone SP calculates the number of steps in step S15, and then transmits the calculated number of steps to the server SV (S31). After step S31, the smartphone SP requests and acquires the total number of steps, which is integrated data, from the server SV (S32), and displays the acquired total number of steps on the display DSP (S17).

As shown in FIG. 11, the server SV constantly determines whether the number of steps has been acquired from the smartphone SP (S41). If it is determined in step S41 that the number has not been acquired (No), the server SV ends this process.

If it is determined in step S41 that the number of steps has been acquired (Yes), the server SV adds (integrates) the acquired number of steps to the past number of steps accumulated in the data accumulation unit 420 (S42). After step S42, the server SV determines whether or not there is a request for integrated data, i.e., the total number of steps, from the smartphone SP (S43).

If it is determined in step S43 that no request has been made (No), the server SV ends this process. If it is determined in step S43 that a request has been made (Yes), the server SV transmits the integrated total number of steps to the smartphone SP (S43) and ends this process.

As described above, according to this embodiment, there is no need to provide a data storage unit in the smartphone SP, so the storage capacity of the smartphone SP can be saved.

The total number of steps integrated by the server SV is notified to the seated person P via the smartphone SP, so that the seated person P can make effective use of the total number of steps.

In the above embodiment, the total number of steps is simply displayed on the display DSP as integrated data, but the present invention is not limited to this, and the integrated data can be used for various purposes. For example, an activity plan may be determined based on the total number of steps.

Specifically, the smartphone SP may be configured to execute the process shown in FIG. 12 in the seat system 1 shown in FIG. 1, for example. The process shown in FIG. 12 has a new step S51 instead of step S17 in the process shown in FIG. 5, and the other steps are the same as the process in FIG. 5.

In the process shown in FIG. 12, the smartphone SP integrates and accumulates the number of steps in the data accumulation unit 140 (S16), and then determines an activity plan based on the integrated total number of steps, and displays the determined activity plan on the display DSP (S51). Here, in this embodiment, a 100m sprint game and a break (closing the seat app) are exemplified as activity plans.

In step S51, if the total number of steps is less than a predetermined number (e.g., 3,000 steps), the smartphone SP indicates that the amount of exercise of the seated person P is insufficient and presents an activity plan to promote exercise, i.e., a 100m running game, as a recommended activity plan. In more detail, as shown in FIG. 13, the smartphone SP displays on the display DSP a message encouraging the user to play the 100m running game, and displays the button B1 for playing the 100m game larger than the button B2 for taking a rest.

In step S51, if the total number of steps is equal to or greater than a predetermined number, the smartphone SP indicates that the seated person P is tending to exercise (game) too much, and therefore presents a recommended activity plan of taking a break, i.e., closing the seat app. In more detail, as shown in FIG. 14, the smartphone SP displays a message encouraging the seated person P to take a break on the display DSP, and displays a button B2 for taking a break larger than the button B1 for playing the 100m game.

According to this embodiment, an activity plan is presented to the seated person P based on the total number of steps (integrated data), so that an activity plan suited to the physical condition of the seated person P can be presented to the seated person P. Also, when the parent of the seated person P sees the screen shown in FIG. 14, the parent can know that the child is exercising (playing games) too much, and can take the smartphone SP away from the child.

In the above embodiment, the evaluation value (first evaluation value, second evaluation value) of the physical condition of the seated occupant P is the amount of exercise (number of steps) of the seated occupant P, but the present invention is not limited to this, and the evaluation value may be, for example, weight or sitting time. For example, if the evaluation value is weight, the smartphone SP can be configured to execute an app for measuring weight, more specifically, the process shown in FIG. 15, in the seat system 1 shown in FIG. 1.

The process shown in FIG. 15 includes step S11 of the process shown in FIG. 5, as well as new steps S61 to S67. In the process shown in FIG. 15, if the smartphone SP determines in step S11 that communication is possible (Yes), it acquires a pressure value from the child seat 2 or the cart-attached chair 3 (S61).

After step S61, the smartphone SP calculates the weight of the seated person P based on the pressure value (S62). After step S62, the smartphone SP updates the weight history stored in the data storage unit 140 (S63). In detail, in step S63, the smartphone SP associates the currently calculated weight with the date and stores it in the data storage unit 140 together with past weight and date data. In other words, the smartphone SP does not integrate data by adding up the number of steps as in the previous embodiment, but rather integrates data by accumulating weight and date data.

After step S63, the smartphone SP determines whether the app is active (S64). If it is determined in step S64 that the app is active (Yes), the smartphone SP displays the weight for that day and the weight history for the past (e.g., this month) on the app screen displayed over the entire display DSP, as shown in FIG. 16 (S65).

If it is determined in step S64 that the app is not in an active state (No), the smartphone SP notifies the user of the currently calculated weight in a message frame displayed in a portion of the home screen, as shown in FIG. 17 (S66). After step S65 or step S66, the smartphone SP determines whether or not the user has selected to end the app (S67).

If it is determined in step S67 that end has not been selected (No), the smartphone SP returns to the processing of step S61. If it is determined in step S67 that end has been selected (Yes), the smartphone SP ends this processing.

In this embodiment, the seated person P can know the weight history (integrated data), so the seated person P can easily manage his/her weight.

If the evaluation value is the sitting time, advertisements, recommended apps, health advice, etc. can be presented to the seated person P based on the sitting time. For example, if the sitting time is longer than a predetermined time, it can be determined that the seated person P is thirsty and an advertisement for a beverage can be presented to the seated person P. The sitting time can be calculated as the elapsed time after the pressure value reaches or exceeds a predetermined threshold.

In the above embodiment, pressure values are exemplified as the first and second information for detecting the physical condition of a seated occupant, but the present invention is not limited to this, and the first and second information may be, for example, current values corresponding to body temperature or the amount of sweating. Any sensor capable of detecting this information may be used. For example, if the first and second information are current values corresponding to the amount of sweating, the evaluation value may be the amount of sweating calculated from the current value, and data on the amount of sweating and dates from the past to the present may be accumulated as integrated data.

The number of seats that make up the seat system is not limited to two, and may be three or more. The seats may also be seats installed in other vehicles such as ships or aircraft, or may be chairs or floor chairs installed in homes or public facilities.

In the above embodiment, the sensor is provided only on the seat cushion, but the present invention is not limited to this. For example, the sensor may be provided on both the seat cushion and the seat back, or only on the seat back.

In the above embodiment, pressure sensors are exemplified as the first sensor and the second sensor, but the present invention is not limited to this, and the first sensor and the second sensor may be, for example, an optical sensor. In this case, information on whether or not light is detected by the optical sensor may be the first information and the second information, and the number of steps, etc. may be calculated based on this first information and the second information.

In the above embodiment, a smartphone SP is used as an example of a mobile terminal, but the present invention is not limited to this, and the mobile terminal may be a mobile terminal other than a smartphone SP, such as a tablet.

The elements described in the above embodiments and variations may be implemented in any combination.

Reference Signs List 1 Seat system 2 Child seat 3 Chair attached to cart 20 First seat body 30 Second seat body 140 Data storage unit P Seat occupant SP Smartphone

Claims (10)

a first seat having a first seat body and a first sensor provided on the first seat body and configured to obtain first information for detecting a motion of an occupant sitting on the first seat body;
a second seat having a second seat body and a second sensor provided on the second seat body and configured to obtain second information for detecting a motion of an occupant sitting in the second seat body;
a portable terminal capable of communicating with the first seat and the second seat, determining the movement of an occupant based on an average value of the first information acquired multiple times from the first sensor when the occupant is not moving, and calculating a first evaluation value that is an evaluation value of the movement of the occupant based on the determination result, and determining the movement of the occupant based on an average value of the second information acquired multiple times from the second sensor when the occupant is not moving, and calculating a second evaluation value that is an evaluation value of the movement of the occupant based on the determination result;
a data storage unit that stores the first evaluation value and the second evaluation value as integrated data. Further comprising a server capable of communicating with the mobile terminal,
2. The seat system according to claim 1, wherein the server includes the data storage unit. the mobile terminal is capable of executing a seat application that uses the integrated data, and has a step count calculation unit;
The step count calculation unit
calculating a first number of steps, which is an amount of motion of the seated person, as the first evaluation value based on the first information;
calculating a second number of steps, which is an amount of motion of the seated person, as the second evaluation value based on the second information;
2. The seat system according to claim 1, wherein the number of steps calculated as the first evaluation value and the second evaluation value by integrating the first number of steps and the second number of steps is output to the data storage unit. The mobile terminal includes the data storage unit,
the data accumulation unit accumulates a step count obtained by integrating the first step count and the second step count output from the step count calculation unit as the integrated data;
4. The seat system according to claim 3, wherein the number of steps stored in said data storage unit is updated every day. The mobile terminal includes:
The data integrated by the server can be acquired from the server, and a notification unit is provided,
3. The seat system according to claim 2, wherein the notification unit notifies the seat occupant of the number of steps as the data acquired from the server. the first sensor and the second sensor are pressure sensors;
The seat system described in any one of claims 1 to 5, characterized in that the mobile terminal is capable of calculating the amount of motion of the occupant as the first evaluation value based on a first pressure value as the first information, and is capable of calculating the amount of motion of the occupant as the second evaluation value based on a second pressure value as the second information. The mobile terminal includes:
A display is provided.
The seat system described in claim 3, characterized in that when the total number of steps obtained by adding up the first number of steps and the second number of steps is less than a predetermined number of steps, a message is displayed on the display encouraging the user to carry out an activity plan to promote exercise, and a first button for starting the activity plan is displayed larger than a second button for ending the seat app. The mobile terminal includes:
A display is provided.
The seat system according to claim 3, characterized in that, when the total number of steps obtained by adding up the first number of steps and the second number of steps is equal to or greater than a predetermined number of steps, a message prompting the user to close the seat app is displayed on the display, and a second button for closing the seat app is displayed larger than a first button for starting an activity plan to promote exercise. 9. The seat system according to claim 1, wherein the mobile terminal presents an advertisement, an application, or advice to the seat occupant based on the seating time. The first seat body has a seat cushion and a seat back,
10. The seat system according to claim 1, wherein the seat cushion and the seat back each include a cushion pad and a cover covering the cushion pad.

Images