JP2023075703A - seat system - Google Patents

Abstract

To improve entertainment characteristics of a seat so as to propose a new value of the seat.SOLUTION: A seat system 1 comprises: a seat body 11 on which a user can sit; a plurality of sensors (pressure sensors P) that is provided in the seat body 11 and into which information is input from the user; and a control part 20 that acquires the information from the sensor. The control part 20 changes output on the basis of coincidence of timing of input of the information into at least two of the sensors.SELECTED DRAWING: Figure 1

Description

The present invention relates to a seat system comprising a seat with sensors.

2. Description of the Related Art Conventionally, there is known a vehicle seat in which a plurality of pressure sensors are arranged on the seat in order to detect the seating posture of an occupant (Patent Document 1).

JP 2017-65504 A

However, the conventional vehicle seat only evaluates and presents the sitting posture of the driver, so there is a problem that it cannot be used very effectively.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the entertainment value of a seat in order to propose a new value of the seat.

In order to solve the above problems, a seat system according to the present invention includes a seat body on which a user can sit, a plurality of sensors provided on the seat body for receiving information from the user, and acquiring information from the sensors. and a control unit.
The control unit changes the output based on the matching degree of information input timings to at least two of the sensors.

According to this configuration, the output is changed based on the coincidence of the input timings of the information to the two sensors. can be improved.

Further, the control unit may execute an application program based on information from the sensor, and may give a higher evaluation value in the application program as the matching degree of the input timing is higher.

Further, the application program is a program for moving a character on a screen, and the control unit may increase the speed of the character as the matching degree of the input timing is higher.

According to this configuration, for example, it is possible to provide the user with a three-legged game.

Further, the sensor may be a pressure sensor, and the controller may determine that the smaller the difference between the pressure values of the two pressure sensors acquired at the same time, the higher the matching degree of the input timing.

Further, the control unit calculates the sum of the differences in the pressure values of the two pressure sensors during a predetermined period from the present time to the past, and determines that the smaller the sum is, the higher the degree of coincidence of the input timings is. good too.

Further, the control unit may notify the input timing of information to the sensor.

Further, the seat main body can be seated by two or more users, and the plurality of sensors include a first sensor to which information is input from a first user and a second sensor to which information is input from a second user. And, the control unit, based on the degree of coincidence between the input timing of information to the first sensor by the first user and the input timing of information to the second sensor by the second user, You can change the output.

The seat body includes a first seat body on which a first user can sit, and a second seat body which is separate from the first seat body and on which a second user can sit. , wherein the first seat body has a first sensor to which information is input from a first user, and the second seat body has a second sensor to which information is input from a second user. , the control unit changes the output based on the degree of coincidence between the input timing of information to the first sensor by the first user and the timing of information input to the second sensor by the second user. good too.

According to the present invention, it is possible to improve the entertainment value of the seat.

Further, the control unit increases the speed of the character moving on the screen as the degree of coincidence of the timing of inputting information to the sensor is higher, so that, for example, a three-legged game can be provided to the user.

1 illustrates a seat system according to an embodiment of the invention; FIG. 4 is a flow chart showing the operation of a smart phone; FIG. 10 is a flow chart showing processing of a two-person tripod game; FIG. FIG. 4 is a diagram showing an example of changes in pressure values of a first right leg sensor and a second right leg sensor; FIG. 10 is a diagram for explaining a modification of the setting method of the application sensor; 1 shows a seat system with two seat bodies; FIG.

An embodiment of the present invention will be described below with reference to the drawings.
As shown in FIG. 1 , the seat system 1 includes a seat 10 and a control section 20 . In the following description, front and rear, left and right, and up and down are based on the user sitting on the seat 10 .

The seat 10 is a chaise longue-like seat, and includes a seat body 11 whose seat surface is longer in the left-right direction than in the front-rear direction, and a plurality of pressure sensors P as an example of sensors. Two or more users can sit on the seat body 11 . The seat body 11 includes a seat cushion 11A and a seat back 11B.

The pressure sensor P is a sensor that acquires pressure, which is information for specifying the physical condition of the user sitting on the seat body 11 (posture and movement of the user's body). The pressure sensor P is provided between the skin of the seat cushion 11A and the pad.

The plurality of pressure sensors P includes a plurality of first sensors P1 to which pressure information is input from a first user, and a plurality of second sensors P2 to which pressure information is input from a second user. there is In this embodiment, the number of the first sensors P1 and the number of the second sensors P2 are 12, respectively.

The plurality of first sensors P1 are arranged within a first range R1, which is a range on the right side of the center of the seat cushion 11A in the left-right direction. The plurality of first sensors P1 are arranged so that two rows of six first sensors P1 spaced in the left-right direction are spaced in the front-rear direction. The six rear first sensors P1 are arranged at positions corresponding to the buttocks of the seated person. The six first sensors P1 on the front side are arranged at positions corresponding to the thighs of the seated person.

The plurality of second sensors P2 are arranged within a second range R2, which is a range on the left side of the center of the seat cushion 11A in the left-right direction. The plurality of second sensors P2 are arranged so that two rows of six second sensors P2 spaced apart in the left-right direction are arranged in two rows spaced in the front-rear direction. The six rear second sensors P2 are arranged at positions corresponding to the buttocks of the seated person. The six second sensors P2 on the front side are arranged at positions corresponding to the thighs of the seated person.

The control unit 20 has a function of executing an application program (hereinafter also simply referred to as an “application”) based on information from the pressure sensor P. As shown in FIG. The control unit 20 has a first control unit 21 , a second control unit 22 and a smart phone 23 . The first control unit 21, the second control unit 22, and the smartphone 23 each have a CPU, ROM, RAM, rewritable non-volatile memory, etc. (not shown), and execute pre-stored programs. Note that the smartphone 23 further includes a screen 23A.

The first control unit 21 and the second control unit 22 can communicate with the smart phone 23 . Note that the first control unit 21 and the second control unit 22 may be provided in the seat body 11 or may be configured as devices separate from the seat body 11 and the smartphone 23 .

In this embodiment, an application that provides a three-legged game is exemplified as an application. In the three-legged game, a first user and a second user sitting on the seat body 11 move their left and right legs alternately up and down while matching the movement of the other's legs, so that the screen 23A of the smartphone 23 This is a game in which the displayed character runs. Note that in the three-legged-legged game according to the present embodiment, unlike the actual three-legged-legged game, the character speed increases as the degree of coincidence in the timing of vertical movement of the left legs or the right legs of the first user and the second user increases. Make it a game that grows.

The first controller 21 is connected to each first sensor P1 and acquires information from each first sensor P1. The second controller 22 is connected to each second sensor P2 and acquires information from each second sensor P2.

The first control unit 21 has a function of setting two first sensors P1 having the strongest reaction among the six first sensors P1 on the front side as sensors for the first application used in the application. When the first user sits in the first range R1, the first control unit 21 sets the first application sensors from the plurality of first sensors P1, and controls the left and right first application sensors set as the first application sensors. The information acquired from the sensor P1 is output to the smartphone 23. In the following description, of the left and right first sensors P1 set as the sensors for the first application, the left first sensor P1 is also referred to as the "first left leg sensor", and the right first sensor P1 is referred to as the "first left leg sensor". , is also referred to as a “first right leg sensor”.

The second control unit 22 has a function of setting two second sensors P2 having the strongest reaction among the six second sensors P2 on the front side as the second application sensors used in the application. When the user sits within the second range R2, the second control unit 22 sets the second application sensors from the plurality of second sensors P2, and sets the left and right second sensors P2 set as the second application sensors. to the smart phone 23. In the following description, of the left and right second sensors P2 set as the sensors for the second application, the left second sensor P2 is also referred to as a "second left leg sensor", and the right second sensor P2 is also referred to as a "second left leg sensor". , is also called a “second right leg sensor”.

The smartphone 23 has a function of executing a three-legged game application based on information from the first application sensor and the second application sensor. The smartphone 23 has a function of changing the output based on the degree of coincidence between the timing of inputting information to the sensor for the first application and the timing of inputting information to the sensor for the second application. Specifically, the smart phone 23 increases the speed of the character on the screen 23A as the timing of inputting information to the first right leg sensor and the timing of inputting information to the second right leg sensor match. In addition, the smart phone 23 increases the speed of the character on the screen 23A as the timing of inputting information to the first left leg sensor and the timing of inputting information to the second left leg sensor match.

In the three-legged game, the character's speed is directly related to the time from the start to the goal, so it corresponds to the evaluation value in the application. In other words, the higher the evaluation value, the more advantageous the game progresses. In this embodiment, the speed of the character corresponds to the evaluation value.

Therefore, in the present embodiment, the smart phone 23 increases the evaluation value in the application as the timing of inputting information to the first right leg sensor and the timing of inputting information to the second right leg sensor are more coincident. . In addition, the smart phone 23 increases the evaluation value in the application as the degree of coincidence between the timing of inputting information to the first left leg sensor and the timing of inputting information to the second left leg sensor is higher.

As shown in FIG. 4 , the smart phone 23 has a higher matching degree of input timing as the absolute value of the difference ΔP between the pressure value PR1 of the first right leg sensor and the pressure value PR2 of the second right leg sensor, which are acquired simultaneously, is smaller. It has a function to determine The smartphone 23 also has a function of determining that the smaller the absolute value of the difference between the pressure value of the first left leg sensor and the pressure value of the second left leg sensor acquired at the same time, the higher the matching of the input timings.

Specifically, the smartphone 23 detects the absolute value of the difference ΔP between the pressure values PR1 and PR2 of the first right leg sensor and the second right leg sensor, the first left leg sensor and The sum S of the difference between the pressure values of the second left leg sensor and the absolute value is calculated.

Next, operations of the smart phone 23 will be described in detail.
When the user launches the three-legged game application, the smartphone 23 starts the processing shown in FIG. 2 (START). In this process, the smartphone 23 first determines whether or not it is in a state of being able to communicate with the seat 10 (S1).

If it is determined in step S1 that communication is not possible (No), the smartphone 23 terminates this process. If it is determined in step S1 that communication is possible (Yes), the smartphone 23 displays a start image of the three-legged game on the screen 23A (S2). It is assumed that the start image displays a start button for starting the three-legged game and an end button for ending the application.

Further, when determining that communication is possible, the smartphone 23 requests the pressure values used in the three-legged game from the first control unit 21 and the second control unit 22 . Upon receiving the request, the first control unit 21 and the second control unit 22 set the first application sensor and the second application sensor, and transmit the pressure value of each application sensor to the smartphone 23 .

After step S2, the smartphone 23 determines whether or not the start button displayed on the screen 23A has been selected (S3). If it is determined that the start button has been selected in step S3 (Yes), the smartphone 23 determines whether the flag F indicating whether the calibration in the three-legged game has already been executed in the past is 0 ( S4).

Here, calibration means that, in a three-legged game, the peak of the pressure value input from the first user to the first application sensor and the peak of the pressure value input from the second user to the first application sensor are This is a process of aligning to an equivalent value.

If it is determined that F is not 0 in step S4 (No), that is, if calibration has been performed in the past, the smartphone 23 starts the three-legged game without performing calibration (S5) ( S9). If it is determined that F=0 in step S4 (Yes), that is, if calibration has never been performed in the past, the smartphone 23 performs calibration (S5).

The smartphone 23 displays instructions for each user on the screen 23A during calibration. For example, the smartphone 23 displays a message on the screen 23A, "Please alternately move both legs up and down for a predetermined period of time." The smartphone 23 sets a correction value for correcting the peak values of the pressure values of the left leg sensors acquired during a predetermined period of time to the same value. In addition, the smartphone 23 sets correction values for the right leg sensors as well as for the left leg sensors so as to align the peak values of the respective pressure values.

After step S6, the smartphone 23 sets the flag F to 1 (S6), and executes the three-legged game (S7). Processing in the three-legged game will be described in detail later.

After step S7, or when it is determined No in step S3, the smartphone 23 displays the start image and determines whether or not the end button displayed on the screen 23A has been selected (S8). If it is determined in step S8 that the end button has not been selected (No), the smartphone 23 returns to the process of step S2. If it is determined in step S8 that the end button has been selected (Yes), the smartphone 23 terminates this process.

As shown in FIG. 3, the smartphone 23 notifies each user of a signal to start a character in a three-legged game, and then acquires a pressure value from the pressure sensor P corresponding to each leg of each user (S21). Specifically, the smartphone 23 acquires pressure values of the first left leg sensor, the second left leg sensor, the first right leg sensor, and the second right leg sensor in step S21. Further, the smartphone 23 corrects the pressure value on the side of the first user or the pressure value on the side of the second user so that the peaks of the pressure value on the side of the first user and the pressure value on the side of the second user are aligned.

Note that the smartphone 23 may notify each user of the timing of inputting information to each left leg sensor or each right leg sensor after reporting a signal to start the character. Specifically, the smartphone 23 notifies each user of a message such as "1, 2, 1, 2, ..." or a message of "inside, outside, inside, outside, ..." by voice. You may In addition, the input timing may be notified by simple sound other than voice, video, light, vibration, or the like.

After step S21, the smartphone 23 detects the absolute value of the difference between the pressure values of the first right leg sensor and the second right leg sensor and the pressure value of the first left leg sensor and the second A total sum S of the difference between the pressure values of the left leg sensor and the absolute value is calculated (S22). In this embodiment, each pressure value is acquired every 50 ms, and the predetermined period is 0.5 s. As a result, the number of differences obtained during the predetermined period is 10 on the right leg side and 10 on the left leg side.

After step S22, the smart phone 23 calculates the matching degree D from the total sum S and the following formula (1) (S23).
D=1-S/20460 (1)

Here, the pressure value data is represented by 10 bits. Therefore, the minimum value of the difference between the two pressure values is 0, and the maximum value is 1023. Since the number of differences obtained during the predetermined period is 10 on the right leg side and 10 on the left leg side, the maximum value of the sum S of all the differences is 20,460. Therefore, the smaller the ratio obtained by dividing the sum S of the differences in the predetermined period by the maximum value 20460 of the sum S, the smaller the value indicating that the input timing of each user is off. Then, by subtracting this ratio from 1, a degree of coincidence D indicating how well the input timings of the respective users coincide is calculated. It should be noted that the higher the degree of coincidence D, the more the input timings of the users are coincident.

After step S23, the smartphone 23 sets the speed of the character based on the matching degree D (S24). Specifically, in step S24, the smartphone 23 increases the speed of the character as the degree of matching D increases.

After step S24, the smartphone 23 moves the character on the screen 23A at the speed set in step S23 (S25). After step S25, the smartphone 23 determines whether or not the character has reached the goal (S26).

When it is determined in step S26 that the character has not reached the goal (No), the smartphone 23 returns to the process of step S21. If it is determined in step S26 that the character has reached the goal (Yes), the smartphone 23 displays the result on the screen 23A (S27), and ends this process.

Next, an example of the operation of the control section 20 will be described. The example below shows an example where calibration has not been performed in the past.

As shown in FIG. 1, the first user operates the smartphone 23 while the first user sits in a first range R1 on the right side of the seat 10 and the second user sits in a second range R2 on the left side of the seat 10. When the three-legged game application is launched, the smartphone 23 requests the first control unit 21 and the second control unit 22 for pressure values to be used in the three-legged game. The first control unit 21 and the second control unit 22 transmit the pressure value of each application sensor to the smartphone 23 in response to a request.

When the smartphone 23 displays the start image on the screen 23A and the first user selects the start button of the start image, calibration is executed (S3: Yes→S4: Yes→S5). In the calibration, instructions for each user are displayed on the screen 23A, so each user alternately moves both legs up and down according to the instructions. Each user may look at the screen 23A of the smart phone 23 together, or look at the screen of the large monitor to which the smart phone 23 is connected.

When the calibration ends, the smartphone 23 executes a three-legged game (S7). In the three-legged game, each user alternately moves both legs up and down while synchronizing the movements of the legs. In the three-legged game, if the legs of each user do not move in synchronism, the speed of the characters on the screen 23A is low, so each user tries to align their leg movements by, for example, synchronizing their voices.

In the three-legged game, when the motions of the legs of each user become uniform, the speed of the character increases. When the character reaches the goal, the smartphone 23 displays the time from the start to the goal as a result, and ends the three-legged game.

According to the above, the following effects can be obtained in this embodiment.
Since the output is changed based on the coincidence of the input timing of information to each right leg sensor or each left leg sensor, it is possible to provide a user with a three-legged game application and improve the entertainment of the seat 10.例文帳に追加can be done.

The present invention is not limited to the above-described embodiments, and can be used in various forms as exemplified below. In the following description, members having substantially the same structure as those of the above-described embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.

The method of setting the application sensor is not limited to the method of the above embodiment. For example, as shown in FIG. 5, the application sensor may be set by setting the origin at a predetermined position of the seat cushion 11A and obtaining the center of gravity of the user based on the set origin.

Specifically, in this example, two pressure sensors Pa and Pb adjacent to the left and right of the pressure sensors P on the rear side and two pressure sensors Pc and Pd located in front of these pressure sensors Pa and Pb, etc. The position of the distance is set to the origin, the left side of the origin is set to the positive x coordinate, and the rear side of the origin is set to the positive y coordinate. The first control unit 21 or the second control unit 22 (hereinafter also simply referred to as the “seat control unit”) controls the position of a plurality of pressure sensors P that detect a pressure value equal to or greater than a predetermined value according to the seating of the user. Based on the moment applied to the origin, the x-coordinate Gx and y-coordinate Gy of the center of gravity G are obtained.

Specifically, the seat control section obtains the x-coordinate Gx and y-coordinate Gy of the center of gravity G using the following equations (2) and (3).
Gx=ΣFn·xn/ΣFn (2)
Gy=ΣFn·yn/ΣFn (3)
Fn: Pressure value of the n-th pressure sensor P among the plurality of pressure sensors P that detect a pressure value equal to or greater than a predetermined value xn: x-coordinate of the n-th pressure sensor P yn: y-coordinate of the n-th pressure sensor P

When a pressure value equal to or greater than a predetermined value is applied only to the four pressure sensors Pa to Pd shown in FIG. Find the coordinate Gy.
Gx={Fa.(-xa)+Fc.(-xc)+Fb.xb+Fd.xd}/(Fa+Fb+Fc+Fd) (4)
Gy={Fc·(−yc)+Fd·(−yd)+Fa·ya+Fb·yb}/(Fa+Fb+Fc+Fd) (5)
Here, the symbols attached behind the symbols F and x correspond to the symbols attached behind the pressure sensor P. As shown in FIG. That is, the pressure value of the pressure sensor Pa is Fa, and the x, y coordinates of the pressure sensor Pa are -xa, ya.

Since the origin is set equidistant from the four pressure sensors Pa to Pd, the above equations (5) and (6) become the following equations (7) and (8).
Gx={(Fb+Fd)−(Fa+Fc)}/(Fa+Fb+Fc+Fd) (7)
Gy={(Fa+Fb)−(Fc+Fd)}/(Fa+Fb+Fc+Fd) (8)

After obtaining the x-coordinate Gx and y-coordinate Gy of the center of gravity G, the seat control unit sets the application sensor with the center of gravity G as a reference. For example, in a three-legged game application that uses load information from both legs of the user as in the above-described embodiment, the seat control unit uses two pressure sensors Pc and Pd located in front of the center of gravity G as application sensors. can be set.

Note that the seating surface of the seat cushion 11A may be marked with a mark that can be recognized by the user as an application sensor. In this case, the seat control unit may execute the application using the pressure sensor corresponding to the mark as the application sensor.

In the above embodiment, the pressure sensor P is provided only on the seat cushion 11A, but the present invention is not limited to this, and the pressure sensor P may be provided on the seat back 11B.

In the above-described embodiment, the seat body 11 in the shape of a chaise longue on which two or more users can sit has been exemplified, but the present invention is not limited to this. For example, as shown in FIG. 6 , the seat body 30 may have a first seat body 31 and a second seat body 32 separate from the first seat body 31 .

The first seat main body 31, on which the first user can sit, has a seat cushion 31A, a seat back 31B and a headrest 31C. The seat cushion 31A and the seat back 31B have a first sensor P1 to which information is input by the first user. The first sensor P1 is connected to the first controller 21 . The first sensor P1 may be provided on at least one of the seat cushion 31A, seat back 31B and headrest 31C.

The second seat main body 32 can be seated by the second user, and has a seat cushion 32A, a seat back 32B and a headrest 32C. The seat cushion 32A and seat back 32B have a second sensor P2 to which information is input from the second user. The second sensor P2 is connected to the first controller 21 . The second sensor P2 may be provided on at least one of the seat cushion 32A, seat back 32B and headrest 32C.

The smartphone 23 changes the output based on the degree of coincidence between the input timing of information to the first sensor P1 by the first user and the input timing of information to the second sensor P2 by the second user. Specifically, the smartphone 23 is capable of executing a three-legged game application similar to that of the above-described embodiment. Even with such a form, it is possible to obtain the same effect as the above-described embodiment.

Note that, in this embodiment, an application may be employed in which the first user and the second user input pressure using only one first seat body 31 . Specifically, the first user may manually press the pressure sensor P of the seat cushion 31A, and the second user may manually press the pressure sensor P of the seat back 31B. Moreover, as an application in this case, for example, it is possible to adopt a game in which the score increases at an accelerated rate when two users press the pressure sensor P at the same timing.

In this game, for example, 10 points are added when two people match the timing once, 100 points are added when the timing is matched twice in a row, 1000 points are added when the timing is matched 3 times in a row, and 1000 points are added when the timing is matched 4 times in a row. If the timing is correct, 10000 points are added, and if the timing is not correct, the game can be restarted from 10 points. It should be noted that the game is not limited to the game in which the score increases according to the number of times the timing is matched, and the game may be a game in which the score increases as the timing coincides.

In the above-described embodiment, the speed of the character is increased when the movement timings of the right legs or the left legs of each user are highly matched, unlike the actual three-legged race, but the present invention is not limited to this. For example, the speed of the character may be increased when the movement timings of the left and right inner legs or the left and right outer legs of each user have a high matching degree, as in an actual tripod.

Determination of the matching degree of the input timing of the information to the sensor is not limited to the above embodiment. For example, it may be determined that the smaller the difference between the time when the pressure value from the first user reaches the peak value and the time when the pressure value from the second user reaches the peak value, the higher the degree of matching.

A character may be a car, an airplane, or the like. The character may also move relative to the background by moving the background around the character.

The seat may be a vehicle seat used in automobiles, ships, or the like, or may be a seat installed in a room such as a public facility.

In the above-described embodiment, the control unit is composed of the first control unit 21, the second control unit 22, and the smartphone 23, but the present invention is not limited to this. For example, the control unit may be connected to each sensor of the seat and connected to a monitor such as a car navigation system. In this case, the control unit may cause the character on the monitor to act by executing an application based on information from each sensor.

The controller may increase the speed of the character as the timing of inputting information to three or more sensors increases. In this case, for example, a three-person, four-legged game can be adopted as the application.

The control unit may change the output based on the matching degree of information input timings to the plurality of sensors. For example, the control unit moves an object moved by the control unit when the matching degree of input timing is equal to or higher than a predetermined value, and does not move the object when the matching degree of input timing is less than a predetermined value. be able to. The object may be, for example, a character on the screen, a vehicle such as a cart on which the user rides, or a robot.

The sensor may be any sensor to which information is input by the user, and may be, for example, an optical sensor, a capacitance sensor, a temperature sensor, a humidity sensor, a radio wave sensor, a sound sensor, or the like. Information is not limited to pressure values, and may be any information.

In the embodiment of FIG. 1, two rows of a plurality of sensors arranged in the horizontal direction are provided, but the present invention is not limited to this. Or it may be three or more rows.

In the above-described embodiment, two control units (the first control unit 21 and the second control unit 22) are provided, but the present invention is not limited to this. may be configured to obtain the signal from the

The app sensor settings may be reset when the user stands up from the seat 10 .

In addition, sensors may be provided on the left and right sides of the seat cushion or seat back (parts protruding from the seat surface), headrests, armrests, or parts around the seat (instrument panel, door, floor).

Each element described in the above embodiment and modifications may be implemented in any combination.

1 seat system 11 seat body 20 controller P pressure sensor

Claims (8)

a seat body on which a user can sit;
a plurality of sensors provided on the seat body and receiving information from a user;
A seat system comprising a control unit that acquires information from the sensor,
The seat system according to claim 1, wherein the control unit changes the output based on the degree of coincidence of information input timings to at least two of the sensors. The control unit
executing an application program based on information from the sensor;
2. The sheet system according to claim 1, wherein the higher the degree of matching of the input timings, the higher the evaluation value in the application program. The application program is a program for moving a character on the screen,
The control unit
3. The sheet system according to claim 2, wherein the speed of the character is increased as the matching degree of the input timing is higher. the sensor is a pressure sensor,
The control unit
4. The seat system according to any one of claims 1 to 3, wherein the smaller the difference between the pressure values of the two pressure sensors acquired at the same time, the higher the degree of coincidence of the input timings. . The control unit
calculating the sum of the differences in the pressure values of the two pressure sensors during a predetermined period from the current time to the past;
5. The sheet system according to claim 4, wherein the smaller the total sum, the higher the matching degree of the input timings. The control unit
6. The seat system according to any one of claims 1 to 5, wherein timing of inputting information to said sensor is notified. The seat body is capable of being seated by two or more users,
The plurality of sensors are
a first sensor to which information is input from a first user;
a second sensor to which information is input from a second user;
The control unit
3. The output is changed based on the degree of coincidence between the input timing of information to the first sensor by the first user and the timing of information input to the second sensor by the second user. Seat system according to any one of claims 1 to 6. The seat body is
a first seat body on which a first user can sit;
a second seat body that is separate from the first seat body and on which a second user can sit;
The first seat body has a first sensor to which information is input from a first user,
The second seat body has a second sensor to which information is input from a second user,
The control unit
3. The output is changed based on the degree of coincidence between the input timing of information to the first sensor by the first user and the timing of information input to the second sensor by the second user. Seat system according to any one of claims 1 to 6.

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