seat system

Abstract

To allow an occupant seated on a seat to use information acquired by any other seats in any environments in which the seat with sensors is installed at various places.SOLUTION: A seat system 1 comprises: a first seat (a child seat 2) having a first sensor that acquires first information for detecting the physical state of an occupant seated on a first seat body; a second seat (a seat 3 attached to a cart) having a second sensor that acquires second information for detecting the physical state of an occupant seated on a second seat body; a mobile terminal (a smartphone SP) capable of communicating with the first seat and the second seat, calculating a first evaluation value which is an evaluation value of the physical state of the occupant on the basis of the first information, and also capable of calculating a second evaluation value which is an evaluation value of the physical state of the occupant on the basis of the second information; and a data accumulation part 140 that accumulates the first evaluation value and the second evaluation value as the integrated data.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a seat system including a seat having sensors.

Background Art

[0002] Conventionally, a vehicle seat having a plurality of pressure sensors disposed thereon has been known for detecting the seating posture of an occupant (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the conventional vehicle seat has a problem that it cannot be used very effectively because it only evaluates and presents the seating posture of the driver.

[0005] Therefore, an object of the present invention is to provide a seat system in which a seated person sitting on a seat can use information obtained from other seats in an environment where seats having sensors are installed at various locations in order to propose new value of the seat.

Means for Solving the Problems

[0006] In order to solve the above-described problems, a seat system according to the present invention includes a first seat main body, and a first seat provided with a first sensor for acquiring first information for detecting a physical state of a seated person sitting on the first seat main body; a second seat main body, and a second seat provided with a second sensor for acquiring second information for detecting a physical state of a seated person sitting on the second seat main body; a mobile terminal capable of communicating with the first seat and the second seat, capable of calculating a first evaluation value which is an evaluation value of the physical state of the seated person based on the first information, and capable of calculating a second evaluation value which is an evaluation value of the physical state of the seated person based on the second information; and a data storage unit that stores data obtained by integrating the first evaluation value and the second evaluation value.

[0007] According to this configuration, when a seated person is sitting on the first seat, the seated person can acquire first information from the first seat by means of the mobile terminal and calculate a first evaluation value from the first information. Further, when a seated person is sitting on the second seat, the seated person can acquire second information from the second seat by means of the mobile terminal and calculate a second evaluation value from the second information. Then, the first evaluation value and the second evaluation value calculated by the mobile terminal are stored as integrated data by the data storage unit. Therefore, in an environment where seats having sensors are installed in various places, a seated person sitting on a predetermined seat can utilize information obtained from other seats.

[0008] Further, the mobile terminal may have the data storage unit.

[0009] According to this, a server having a data storage unit becomes unnecessary, so that the configuration of the seat system can be simplified.

[0010] Further, the seat system may further include a server capable of communicating with the mobile terminal, and the server may have the data storage unit.

[0011] According to this, since there is no need to provide a data storage unit in the mobile terminal, the storage capacity of the mobile terminal can be saved.

[0012] In addition, the mobile terminal can acquire the data integrated by the server from the server, and may notify the seated person of the data acquired from the server.

[0013] According to this, since the data integrated by the server is notified to the seated person via the mobile terminal, the seated person can effectively utilize the data.

[0014] In addition, the first sensor and the second sensor are pressure sensors, and the mobile terminal can calculate the momentum of the seated person as the first evaluation value based on the first pressure value as the first information, and calculate the momentum of the seated person as the second evaluation value based on the second pressure value as the second information.

[0015] According to this, since the momentum of the seated person is used as an evaluation value, the seated person can refer to the integrated momentum and grasp their own physical condition.

Effect of the Invention

[0016] According to the configuration described in claim 1, in an environment where seats having sensors are installed in various places, a seated person sitting on a predetermined seat can utilize the information obtained on other seats.

[0017] In addition, when the mobile terminal has a data storage unit, the server becomes unnecessary, so the configuration of the seat system can be simplified.

[0018] In addition, when the server has a data storage unit, there is no need to provide a data storage unit in the mobile terminal, so the storage capacity of the mobile terminal can be saved.

[0019] In addition, by notifying the seated person of the data integrated by the server via the mobile terminal, the seated person can effectively utilize the data.

[0020] Also, by using the amount of movement of the seated person as an evaluation value, the integrated amount of movement of the seated person can be referred to, so that the physical condition of the seated person himself / herself can be grasped.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

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DETAILED DESCRIPTION OF THE INVENTION

[0022] 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 portable terminal.

[0023] The child seat 2 is a seat for a child that is attached to a vehicle seat S installed in a vehicle CR. The cart-attached chair 3 is a seat for a child provided on a shopping cart SHC that is always available in a supermarket or a home center. In the present invention, front-rear, left-right, and up-down are based on the seated person P sitting on the child seat 2 or the cart-attached chair 3.

[0024] As shown in FIG. 2, the child seat 2 includes 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 include a cushion pad and a skin that covers 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.

[0025] The seat cushion 21 is provided with a plurality of pressure sensors PS1 to PS3 under the skin. The pressure sensors PS1 to PS3 are an example of the first sensor, and acquire measurement values which are the first information for detecting the physical state, specifically the movement, of the seated person P sitting on the first seat body 20. The pressure sensors PS1 to PS6 are arranged so as to be able to detect the state of the seating surface facing the seated person P sitting on the first seat body 20, and acquire the pressure values from the seated person P sitting on the first seat body 20.

[0026] Each of the pressure sensors PS1 to PS3 is provided in a pair symmetrically with respect to the left and right centers of the child seat 2. Specifically, the pressure sensor PS1 and the pressure sensor PS2 are arranged at positions corresponding to the buttocks of the seated person P in the seat cushion 21. The pressure sensor PS1 and the pressure sensor PS2 constitute a first cushion sensor SC1 for measuring the pressure from the buttocks of the seated person P. The pressure sensor PS2 is arranged in front of the pressure sensor PS1. Note that the first cushion sensor SC1 may include only one of the pressure sensor PS1 and the pressure sensor PS2.

[0027] The pressure sensor PS3 is located under the thighs of the seated person P. The pressure sensor PS3 constitutes a second cushion sensor SC2 for measuring the pressure value from the thighs of the seated person P. The pressure sensor PS3 is arranged in front of the pressure sensor PS2.

[0028] Note that the pressure sensors PS1 to PS3 are, for example, elements whose electrical resistance changes due to external pressure, and the higher (or lower) the pressure value, the higher (or lower) the voltage of the detection signal.

[0029] The first control device 200 is connected to the pressure sensors PS1 to PS3 so as to be able to acquire pressure values from the pressure sensors PS1 to PS3. The first control device 200 can transmit the information detected by each of the pressure sensors PS1 to PS3 to the smartphone SP.

[0030] Specifically, the first control device 200 is connected to a short-range communication device 210 that enables short-range wireless communication such as Bluetooth (registered trademark) or Wi-Fi (registered trademark). The first control device 200 can communicate with the smartphone SP via the short-range communication device 210.

[0031] The cart-attached chair 3 includes 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.

[0032] A plurality of pressure sensors PS4 to PS6 are provided in the seat cushion 31. The pressure sensors PS4 to PS6 are an example of the second sensor, and acquire measurement values, which are the second information for detecting the physical state, specifically the movement, of the seated person P sitting on the second seat body 30. The pressure sensors PS4 to PS6 acquire pressure values from the seated person P sitting on the second seat body 30.

[0033] Each pair of the pressure sensors PS4 to PS6 is provided symmetrically with respect to the left-right center of the cart-attached chair 3. Specifically, the pressure sensor PS4 and the pressure sensor PS5 are disposed at positions corresponding to the buttocks of the seated person P in the seat cushion 31. The pressure sensor PS4 and the pressure sensor PS5 constitute a third cushion sensor SC3 that measures the pressure from the buttocks of the seated person 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.

[0034] The pressure sensor PS6 is located under the thigh of the seated person P. The pressure sensor PS6 constitutes a fourth cushion sensor SC4 that measures the pressure value from the thigh of the seated person P. The pressure sensor PS6 is disposed in front of the pressure sensor PS5.

[0035] Note that the pressure sensors PS4 to PS6 are elements whose electrical resistance changes due to external pressure, for example, and the voltage of the detection signal increases (or decreases) as the pressure value increases.

[0036] The second control device 300 is connected to the pressure sensors PS1 to PS3 so as to be able to acquire pressure values from the pressure sensors PS4 to PS6. The second control device 300 can transmit the information detected by each of the pressure sensors PS4 to PS6 to the smartphone SP.

[0037] Specifically, the second control device 300 is connected to a short-range communication device 310 that enables short-range wireless communication such as Bluetooth (registered trademark) or Wi-Fi (registered trademark). The second control device 300 can communicate with the smartphone SP via the short-range communication device 310.

[0038] The first control device 200, the second control device 300, and the smartphone SP have a CPU, ROM, RAM, rewritable non-volatile memory, etc. (not shown) and execute a program stored in advance. Note that the smartphone SP further includes a display DSP.

[0039] The smartphone SP can communicate with the child seat 2 and the cart-attached chair 3. Specifically, the smartphone SP has a 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. An app for the seat for providing a game executable for the seated person P based on signals (pressure values) transmitted from the child seat 2 and the cart-attached chair 3 is installed in the smartphone SP.

[0040] In the app for the seat according to the present embodiment, it is possible to provide a 100m race game to the seated person P. The 100m race game is a game in which a character displayed on the display DSP is made to run based on the pressure value transmitted from the child seat 2 or the cart-attached chair 3.

[0041] As shown in FIG. 3, the smartphone SP includes an operation detection unit 110, a game processing unit 120, a step count calculation unit 130, a data storage unit 140, and a notification unit 150.

[0042] The operation detection unit 110 has a function of acquiring a pressure value that changes according to the movement of the seated person P from the child seat 2 and the cart-attached chair 3. When the operation 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.

[0043] The game processing unit 120 has a function of executing a 100 m running game based on the pressure value. For example, when the seated person P sitting on the child seat 2 plays a 100 m running game, the game processing unit 120 acquires the pressure values P3R and P3L of the left and right pressure sensors PS3 on the child seat 2. Then, it determines the normal pressure P3n, which is the average pressure of the seated person P at that time, and a threshold value P3th for peak detection of the pressure value, and calculates the normal step period TSn, which is the average period of moving the legs of the seated person P.

[0044] Specifically, when the seated person P alternately raises the legs, the pressure values P3R and P3L change as shown in FIG. 4, for example. In FIG. 4, the portion where the pressure suddenly decreases indicates that the pressure of the portion of the pressure sensor PS3 has decreased due to the seated person P raising the leg. That is, the pressure value near 140 where the pressure has not decreased becomes the average normal pressure P3n when the leg is not being raised. To calculate the normal pressure P3n, for example, when the absolute value of the difference between the previous value and the current value of the pressure values P3R and P3L (the value obtained by subtracting the previous value P3(n - 1) from the current value P3(n)) is less than or equal to a predetermined value (that is, when the change in the value is small), the current values may be aggregated and averaged.

[0045] Also, the threshold value P3th is a threshold value for determining that the leg is being lifted. For example, in the case of FIG. 4, a value of about 100 to 120 may be used. Therefore, as the threshold value P3th, a value obtained by multiplying the normal pressure P3n by a predetermined value can be used. For example, a value obtained by multiplying the normal pressure P3n by a predetermined value of about 0.6 to 0.9 can be set as the threshold value P3th.

[0046] 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 and P3L can be determined to have reached a peak when the difference between the previous value and the current value changes from negative to positive under the condition that each of the pressure values P3R and P3L is smaller than the threshold value P3th (crossed from the upper side to the lower side). At this time, the previous value P3(n - 1) can be set as the peak value Pm.

[0047] When the game processing unit 120 detects the peaks of the pressure values P3R and P3L according to the movement of the seated person P, it calculates the peak value Pm, and based on the peak value Pm and the normal pressure P3n, calculates the step strength F (FR, FL), which is the magnitude of the leg lift. 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 the difference due to the body size of the seated person P, it is a value normalized by the normal pressure P3n. For example, the step strength F is F = (P3n - Pm) / P3n is set.

[0048] During the 100m race game, when the game processing unit 120 calculates the step intensity F, it moves the character on the display DSP towards the goal. The amount of movement at this time is according to the magnitude of the step intensity F. For example, the smartphone SP moves the character towards the goal by F [m]. Even when obtaining the pressure value from the cart - attached chair 3, the game processing unit 120 performs the same processing as described above. In the following description, the pressure value obtained from the child seat 2 is also referred to as the "first pressure value", and the pressure value obtained from the cart - attached chair 3 is also referred to as the "second pressure value".

[0049] Returning to FIG. 3, the step count calculation unit 130 can calculate the first step count, which is the amount of movement of the seated person P sitting on the child seat 2, as the first evaluation value based on the first pressure value, and can calculate the second step count, which is the amount of movement of the seated person P sitting on the cart - attached chair 3, as the 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 step count. The step count calculation unit 130 outputs the measured step count to the data storage unit 140.

[0050] The data storage unit 140 has a function of storing 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 accumulates the first step count and the second step count. Also, in this embodiment, the accumulation of the step count in the data storage unit 140 is updated every day. That is, in this embodiment, the total step count for one day is stored in the data storage unit 140.

[0051] The notification unit 150 has a function of notifying the seated person P of the data stored in the data storage unit 140. Specifically, in this embodiment, the notification unit 150 displays the total step count 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 for example, it may be notified by voice or the like.

[0052] Next, the operation of the smartphone SP (specifically, the control unit in the smartphone SP) will be described in detail. When the seated person P launches the seat application, the smartphone SP starts the process shown in FIG. 5 (START). In this control, the smartphone SP first determines whether it is in a communicable state with the child seat 2 or the cart-attached chair 3 (S11).

[0053] If it is determined in step S11 that it is not in a communicable state (No), the smartphone SP ends this process. If it is determined in step S11 that it is in a communicable state (Yes), the smartphone SP displays the start screen of the 100m race game (see FIG. 6) on the display DSP (S12).

[0054] After step S12, the smartphone SP determines whether the 100m race game has been selected (S13). If it is determined in step S13 that the 100m race game has been selected (Yes), the smartphone SP executes the 100m race game (S14).

[0055] After step S14, specifically during the 100m race game, the smartphone SP calculates the number of steps based on the pressure value (S15). After step S15, specifically after the end of the 100m race game, the smartphone SP adds (integrates) the current number of steps to the past number of steps stored in the data storage unit 140 (S16).

[0056] 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 the end of the seat application has been selected (S18).

[0057] If it is determined in step S18 that the termination of the seat application has not been selected (No), the smartphone SP returns to the process of step S12. If it is determined in step S18 that the termination of the seat application has been selected (Yes), the smartphone SP terminates this process.

[0058] Next, an example of the specific operation of the smartphone SP will be described in detail. As shown in FIG. 1, for example, when the vehicle CR is heading to the supermarket and the seated person P (child) sitting on the child seat 2 starts the seat application of the smartphone SP for killing time, the process of FIG. 5 is started. When the smartphone SP is in a state where it can communicate with the child seat 2 (S11: Yes), as shown in FIG. 6, a start screen of the 100m running game is displayed on the display DSP of the smartphone SP (S12).

[0059] On the start screen, a button B1 for starting the 100m running game and a button B2 for terminating the seat application are displayed. When the seated person P selects the button B1, it is determined as Yes in step S13, and the 100m running game is executed (S14).

[0060] When the 100m running game ends, the smartphone SP calculates the number of steps for one game and stores it in the data storage unit 140 (S15, S16), and also displays the total number of steps for the whole day stored in the data storage unit 140 on the display DSP (S17, see FIG. 7). In the vehicle, when the seated person P executes the 100m running game multiple times, each time the game ends, the number of steps for one game is sequentially stored in the data storage unit 140.

[0061] 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 terminates the seat app. During shopping at the supermarket, when the seated person P sitting on the cart-attached chair 3 of the shopping cart SHC restarts the seat app of the smartphone SP for entertainment, the process of FIG. 5 starts again.

[0062] When the smartphone SP is in a communicable state with the cart-attached chair 3 (S11: Yes), as shown in FIG. 6, a start screen of the 100m running game is displayed on the display DSP of the smartphone SP (S12). Thereafter, as described above, each time the seated person P executes the game, the number of steps for one game is sequentially accumulated in the data storage unit 140. Therefore, the seated person P can know the total number of steps obtained by adding the number of steps in the vehicle CR and the number of steps on the shopping cart SHC, so that the seated person P can easily know how much exercise has been done. Also, the parent of the seated person P can know the number of steps (amount of exercise) of the child for one day, so that the subsequent activity plan and meal menu of the child can be determined in consideration of the amount of exercise.

[0063] As described above, according to the seat system 1 of the present embodiment, the following effects can be achieved. In an environment where seats (2, 3) having pressure sensors are installed in various places, the seated person P sitting on a predetermined seat can use the information obtained from other seats.

[0064] Since the smartphone SP has the data storage unit 140, a server as described later becomes unnecessary, and the configuration of the seat system 1 can be simplified.

[0065] Since the number of steps, which is the amount of exercise of the seated person P, is used as an evaluation value, the seated person P can refer to the integrated number of steps and can grasp his / her own physical condition.

[0066] Although the embodiments of the present invention have been described above, the present invention can be appropriately modified and implemented as shown in the following other forms. In the following description, the same reference numerals are given to configurations substantially the same as those in the above embodiments, and the description thereof is omitted.

[0067] In the above embodiment, the data storage unit 140 is provided in the smartphone SP. However, the present invention is not limited to this. For example, as shown in FIGS. 8 and 9, a data storage unit 420 may be provided in a server SV that can communicate with the smartphone SP. Specifically, in the form shown in FIG. 8, the seat system 1A includes a server SV in addition to the aforementioned child seat 2, cart-attached chair 3, and smartphone SP.

[0068] As shown in FIG. 9, the smartphone SP includes a transmission unit 160 and a reception unit 170 instead of the data storage unit 140 in the above embodiment. The transmission unit 160 has a function of transmitting the number of steps for one game calculated by the step calculation unit 130 to the server SV in association with the identification information corresponding to the seated person P. The reception 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. Thereby, the smartphone SP is configured to acquire the data (total number of steps) integrated by the server SV from the server SV and notify the seated person P of the acquired data.

[0069] The server SV includes a reception unit 410, a data storage unit 420, and a transmission unit 430. The reception unit 410 has a function of receiving the number of steps associated with the identification information from the smartphone SP. When the reception unit 410 receives the number of steps associated with the identification information, it outputs the received number of steps to the data storage unit 420 together with the identification information.

[0070] The data storage unit 420 has a function of accumulating and storing the number of steps acquired from the reception unit 410 for each identification information. The transmission 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.

[0071] In this form, the smartphone SP is configured to execute the processes shown in FIG. 10, and the server SV is configured to execute the processes 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 the same as those in the process of FIG. 5.

[0072] In the process shown in FIG. 10, after calculating the number of steps in step S15, the smartphone SP transmits the calculated number of steps to the server SV (S31). After step S31, the smartphone SP requests and obtains the total number of steps, which is integrated data, from the server SV (S32), and displays the obtained total number of steps on the display DSP (S17).

[0073] As shown in FIG. 11, the server SV constantly determines whether it has obtained the number of steps from the smartphone SP (S41). If it is determined in step S41 that the number of steps has not been obtained (No), the server SV ends this process.

[0074] If it is determined in step S41 that the number of steps has been obtained (Yes), the server SV adds (integrates) the obtained number of steps to the past number of steps stored in the data storage unit 420 (S42). After step S42, the server SV determines whether there is a request for integrated data, that is, the total number of steps, from the smartphone SP (S43).

[0075] If it is determined in step S43 that there is no request (No), the server SV ends this process. If it is determined in step S43 that there is a request (Yes), the server SV transmits the integrated total number of steps to the smartphone SP (S43) and ends this process.

[0076] As described above, according to this form, since there is no need to provide a data storage unit in the smartphone SP, the storage capacity of the smartphone SP can be saved.

[0077] Since the server SV integrates the total number of steps and notifies the seated person P via the smartphone SP, the seated person P can effectively utilize the total number of steps.

[0078] In the above embodiment, only the total number of steps as integrated data was displayed on the display DSP. However, the present invention is not limited to this, and the integrated data can be utilized for various purposes. For example, an activity plan may be determined based on the total number of steps.

[0079] 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 processes are the same as those in the process of FIG. 5.

[0080] In the process shown in FIG. 12, after integrating and storing the number of steps in the data storage unit 140 (S16), the smartphone SP 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 form, as the activity plan, a 100m running game and a break (ending the seat application) are exemplified.

[0081] In step S51, when the total number of steps is less than a predetermined number of steps (for example, 3000 steps), the smartphone SP presents, as a recommended activity plan, an activity plan for promoting exercise, that is, a 100m running game, because the amount of exercise of the seated person P is insufficient. Specifically, as shown in FIG. 13, the smartphone SP displays a message prompting the execution of the 100m running game on the display DSP and displays a button B1 for executing the 100m game larger than a button B2 for taking a break.

[0082] In step S51, when the total number of steps of the smartphone SP is equal to or greater than a predetermined number of steps, since the seated person P tends to overdo the exercise (game), the smartphone SP presents rest, that is, the termination of the seat app, as a recommended activity plan. Specifically, as shown in FIG. 14, the smartphone SP displays a message prompting rest on the display DSP, and also displays a button B2 for rest larger than a button B1 for executing a 100m game.

[0083] According to this form, since the activity plan is presented to the seated person P based on the total number of steps (integrated data), an activity plan suitable for the physical condition of the seated person P can be presented to the seated person P. Further, when the parent of the seated person P sees the screen shown in FIG. 14, the parent can know that the child is overdoing the exercise (game), so the parent can take the smartphone SP away from the child.

[0084] In the above embodiment, the evaluation values (the first evaluation value and the second evaluation value) of the physical condition of the seated person P are the amount of exercise (number of steps) of the seated person P. However, the present invention is not limited to this, and the evaluation value may be, for example, body weight or sitting time. For example, when the evaluation value is body weight, the smartphone SP can be configured to execute an app for measuring body weight, specifically, the process shown in FIG. 15, in the seat system 1 shown in FIG. 1.

[0085] The process shown in FIG. 15 has the process of step S11 shown in FIG. 5, and also has the processes of new steps S61 to S67. In the process shown in FIG. 15, when the smartphone SP determines that it can communicate in step S11 (Yes), the smartphone SP acquires a pressure value from the child seat 2 or the cart-attached chair 3 (S61).

[0086] 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). Specifically, in step S63, the smartphone SP associates the weight calculated this time with the date and stores it in the data storage unit 140 together with the past weight and date data. That is, the smartphone SP integrates the data not by adding the number of steps as in the above embodiment, but by accumulating the weight and date data.

[0087] After step S63, the smartphone SP determines whether the app is in an active state (S64). If it is determined in step S64 that the app is in an active state (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 on the entire display DSP as shown in FIG. 16 (S65).

[0088] If it is determined in step S64 that the app is not in an active state (No), the smartphone SP notifies the weight calculated this time in the message frame displayed in a part of the home screen as shown in FIG. 17 (S66). After step S65 or step S66, the smartphone SP determines whether the end of the app has been selected (S67).

[0089] If it is determined in step S67 that the end has not been selected (No), the smartphone SP returns to the process of step S61. If it is determined in step S67 that the end has been selected (Yes), the smartphone SP ends this process.

[0090] According to this form, the seated person P can know the weight history (integrated data), so the seated person P can easily manage their weight.

[0091] When the evaluation value is the sitting time, for example, based on the sitting time, advertisements, recommended apps, health advice, etc. can be presented to the sitter P. For example, when the sitting time is longer than a predetermined time, it can be determined that the throat is thirsty, and an advertisement for a beverage can be presented to the sitter P. Note that the sitting time may be calculated as the elapsed time since the pressure value became equal to or higher than a predetermined threshold value.

[0092] In the above embodiment, the pressure value is exemplified as the first information and the second information for detecting the physical state of the sitter. However, the present invention is not limited to this, and the first information and the second information may be, for example, a current value corresponding to body temperature or sweating amount. Note that the sensor may be any sensor that can detect these pieces of information. Further, for example, when the first information and the second information are current values corresponding to the sweating amount, the evaluation value may be the sweating amount calculated from the current value, and the data of the sweating amount and the date from the past to the present may be accumulated as integrated data.

[0093] Also, the number of seats constituting the seat system is not limited to two, and may be three or more. Further, the seat may be a seat installed in another vehicle such as a ship or an aircraft, or may be a chair or a seat installed in a home or a public facility.

[0094] In the above embodiment, sensors are provided only on the seat cushion. However, the present invention is not limited to this, and for example, sensors may be provided on both the seat cushion and the seat back, or sensors may be provided only on the seat back.

[0095] In the above embodiment, the pressure sensor is exemplified as the first sensor and the second sensor. However, the present invention is not limited to this, and the first sensor and the second sensor may be, for example, a light sensor. In this case, information on whether light is detected by the light sensor may be used as 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.

[0096] In the above embodiment, the smartphone SP is exemplified as the mobile terminal. However, the present invention is not limited thereto, and the mobile terminal may be a mobile terminal other than the smartphone SP such as a tablet, for example.

[0097] Each element described in the above-described embodiment and modification examples may be implemented in any combination.

Explanation of Reference Numerals

[0098] 1 Seat system 2 Child seat 3 Cart-attached chair 20 First seat body 30 Second seat body 140 Data storage unit P Occupant SP Smartphone

Claims

1. a first seat including a first seat body and a first sensor provided on the first seat body for detecting a first pressure from a seated person sitting on the first seat body; a second seat including a second seat body and a second sensor provided on the second seat body for detecting a second pressure from a seated person sitting on the second seat body; a mobile terminal capable of communicating with the first seat and the second seat, determining the movement of the seated person based on a first average pressure value which is an average value of the first pressures acquired a plurality of times from the first sensor when the seated person is sitting on the first seat, calculating a first evaluation value which is an evaluation value of the movement of the seated person, determining the movement of the seated person based on a second average pressure value which is an average value of the second pressures acquired a plurality of times from the second sensor when the seated person is sitting on the second seat, and calculating a second evaluation value which is an evaluation value of the movement of the seated person; and a data storage unit for storing data obtained by integrating the first evaluation value and the second evaluation value. The mobile terminal: when the seated person is sitting on the first seat, moves a character on the display according to the magnitude of the first pressure based on the first pressure acquired from the first sensor and the first average pressure value; when the seated person is sitting on the second seat, moves a character on the display according to the magnitude of the second pressure based on the second pressure acquired from the second sensor and the second average pressure value. A seat system characterized by the above.

2. The mobile terminal: when the seated person is sitting on the first seat, calculates a first step intensity which is the magnitude of the seated person lifting the leg based on the peak value of the first pressure and the first average pressure value, and moves the character more greatly as the first step intensity is greater; when the seated person is sitting on the second seat, calculates a second step intensity which is the magnitude of the seated person lifting the leg based on the peak value of the second pressure and the second average pressure value, and moves the character more greatly as the second step intensity is greater. The seat system according to Claim 1, characterized by the above.

3. The mobile terminal: When the seated person is sitting on the first seat, a first threshold value for determining that the seated person is raising their legs is calculated based on the first average pressure value, and the peak value of the first pressure is calculated on the condition that the first pressure exceeds the first threshold value in a direction away from the first average pressure value. The seat system according to claim 2, wherein when the seated person is sitting on the second seat, a second threshold value for determining that the seated person is raising their legs is calculated based on the second average pressure value, and the peak value of the second pressure is calculated on the condition that the second pressure exceeds the second threshold value in a direction away from the second average pressure value.

4. The seat system further includes a server capable of communicating with the mobile terminal. The seat system according to claim 1, wherein the server has the data storage unit.

5. 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 calculates a first step count, which is the momentum of the seated person, as the first evaluation value based on the first pressure. calculates a second step count, which is the momentum of the seated person, as the second evaluation value based on the second pressure. The seat system according to claim 1, wherein the step count obtained by integrating the first step count and the second step count calculated as the first evaluation value and the second evaluation value is output to the data storage unit.

6. The data storage unit stores, as the integrated data, the step count obtained by integrating the first step count and the second step count output from the step count calculation unit. The seat system according to claim 5, wherein the storage of the step count in the data storage unit is updated daily.

7. The mobile terminal When the total step count obtained by integrating the first step count and the second step count is less than a predetermined step count, a message prompting the execution of an activity plan to promote exercise is displayed on the display, and a first button for starting the activity plan is displayed larger than a second button for ending or taking a break from the activity plan. The seat system according to claim 5.

8. The mobile terminal When the total number of steps obtained by integrating 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 a break is displayed on the display, and a second button for ending or taking a break from the activity plan for promoting exercise is displayed larger than the first button for starting the activity plan. The seat system according to claim 5, characterized in that.

9. The seat system according to any one of claims 1 to 8, characterized in that the mobile terminal presents an advertisement, an application, or advice based on the integrated data.

10. The first seat body has a seat cushion and a seat back, The seat cushion and the seat back each include a cushion pad and a skin covering the cushion pad. The seat system according to any one of claims 1 to 9, characterized in that.

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