JP2008052441A - Bag-shaped device apparatus and its control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To present sensations with good response speed by means of a small apparatus configuration. <P>SOLUTION: A bag-shaped device apparatus 100 includes a bag-shaped device 1, a slave bag volume regulating part 2, and a device control part 3. The bag-shaped device 1 is made of vinyl material and includes a master bag 11 with a gas sealed therein, and a slave bag 12 formed in a portion of the master bag 11, having a gas sealed therein, and having a smaller volume than the master bag 11. A CPU 31 transmits a value input by way of an external input I/F 32 to the slave bag volume regulating part 2 as the target position of a piston 21. At the slave bag volume regulating part 2, the piston 21 is moved by a motor 22 according to the value. As a result, the gas in the slave bag 12 changes in volume, changing the shape of the master bag 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bag-like device device that presents a sense of touch or sight to a user, and a control method therefor, for example.

  Due to the development of communication over networks, conventional communication methods using media other than voice and images have been researched and developed. For example, a method has been proposed in which information about movement is extracted from voice, music, or text, and a stuffed animal is operated as if it were a living thing by a motor or the like (see Patent Document 1). By using this method, it becomes possible to transmit the movement of the stuffed toy body synchronized with the voice, music and text to be communicated over the network.

JP 2003-150186 A

  However, in order to carry out communication using richer people and human senses, it is very important to realize things such as softness and touch. With the above method, it is possible to reproduce movements synchronized with voice, music, and text, but it is not possible to reproduce touches and movements at remote locations. For this reason, there is a need for a method that can transmit a sense of softness and touch to a remote place. Further, in the robot apparatus as described above, since a large number of motors are used so as to be able to operate with multiple degrees of freedom, the structure of the apparatus becomes complicated and large, and the operation sound becomes loud.

  The present invention has been made paying attention to the above circumstances, and an object of the present invention is to provide a bag-like device device capable of presenting a sense at a high reaction speed with a small device configuration and a control method thereof. is there.

  In order to achieve the above object, a bag-like device device and a control method thereof according to the present invention are formed in a first bag filled with gas, a part of the first bag, filled with gas, A second bag having a volume smaller than that of the first bag, and adjusting means for adjusting the volume of gas inside the second bag based on input information are provided.

  If comprised in this way, since the 2nd bag is affixed on the 1st bag, if the volume of the gas inside a 2nd bag is made to increase, a pressure will be applied to the surface of a 1st bag. Thereby, the shape of the first bag can be changed. By utilizing this, it is possible to provide a bag-like device device that has a higher reaction speed and can easily transmit a sense to a person than directly adjusting the volume in the first bag with the same amount of air.

The present invention is also characterized by having the following various configurations.
The first configuration is characterized in that the second bag is formed by attaching a peripheral edge of a sheet-like member to the outside of the first bag. By comprising in this way, the change of the volume of a 2nd bag and the shape change of a 2nd bag can be directly transmitted to a 1st bag, and a bag-like device apparatus with a sufficient reaction speed can be provided. .

  The second configuration is characterized in that the second bag is formed by attaching a peripheral edge of a sheet-like member to the inside of the first bag. By comprising in this way, the change of the volume of a 2nd bag and the shape change of a 2nd bag can be directly transmitted to a 1st bag, and a bag-like device apparatus with a sufficient reaction speed can be provided. .

  A third configuration is characterized in that the second bag is formed of a bag independent of the first bag, and a part thereof is bonded to the first bag. By configuring the first bag and the second bag as separate bags, a bag-like device device can be easily realized by using a conventional doll or cushion using an air bag as it is.

According to a fourth configuration, the second bag is formed at a plurality of locations of the first bag. By attaching a large number of second bags to the first bag, a bag-like device device capable of reproducing a more delicate feeling can be provided.
The fifth configuration further includes acquisition means for acquiring sound information, and the adjustment means adjusts the volume of gas inside the second bag based on the sound information acquired by the acquisition means. It is characterized by. If it does in this way, it will become possible to show a user the sense according to the size of the inputted voice, for example.

  The sixth configuration further includes acquisition means for acquiring character information, and the adjustment means adjusts the volume of gas inside the second bag based on the character information acquired by the acquisition means. It is characterized by. Thereby, for example, it becomes possible to present the user with a sense corresponding to the input speed of the input character information.

  In the seventh configuration, the measuring means for measuring the pressure of the gas in at least one of the second bag or the first bag, and the pressure information measured by the measuring means are transmitted via a communication line. Transmitting means, and receiving means for receiving pressure information via the communication line, the adjusting means based on the pressure information received by the receiving means, the volume of the gas inside the second bag It is characterized by adjusting.

  The above configuration further includes means for measuring the atmospheric pressure in the second bag or means for measuring the atmospheric pressure in the first bag, and transmits the measured atmospheric pressure information to the other party via the communication line and receives it. The volume of the second bag is adjusted based on the atmospheric pressure information. This enables bidirectional communication based on the senses.

  In an eighth configuration, the first bag has a recessed portion, the second bag is formed in the recessed portion, and the volume of the gas inside the second bag is changed by the adjusting means. And the first bag is bent and stretched at the recessed portion. By comprising in this way, for example, a 2nd bag can be arranged in the joint part of a stuffed animal, and a link part can be constituted as the 1st bag, and it can move a doll and a stuffed animal limb by natural operation. It can also be applied as an actuator.

  In short, according to the present invention, it is possible to provide a bag-like device device capable of presenting a sense with a small device configuration with a high response speed and a control method thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
FIG. 1 is a schematic configuration diagram showing a first embodiment of a bag-like device device according to the present invention.
The bag-like device device 100 includes a bag-like device 1, a child bag volume adjustment unit 2, and a device control unit 3. The bag-like device 1 includes a parent bag 11 filled with gas, and a child bag 12 formed in a part of the parent bag 11 and having a volume smaller than that of the parent bag 11 and filled with gas.

  FIG. 2 is a block diagram illustrating a configuration of the bag-like device device 100. The bag-like device 1 is composed of one parent bag 11 and one child bag. FIG. 3 shows the configuration of the bag-like device 1. The parent bag 11 is made of, for example, a vinyl material and encloses a gas such as air. The child bag 12 is formed in a part of the parent bag 11, and the periphery of the sheet-like member made of a vinyl material is crimped to the outer side or the inner side of the parent bag 11.

  The child bag volume control unit 2 includes a piston 21, a motor 22 that controls the position of the piston 21, and a potentiometer 23 that detects the position of the piston 21. The piston 21 and the child bag 12 are connected by an air tube to form one space.

  The device control unit 3 includes a CPU (Central Processing Unit) 31 and an external input interface (external input I / F) 32. For example, a volume dial that receives input from the user is connected to the external input I / F 32. The value input from the dial by the external input I / F 32 is captured, and the CPU 31 transmits the value to the child bag volume adjustment unit 2 as the target position of the piston 21. The piston 21 is moved by the motor 22 based on this value. As a result, the shape of the parent bag 11 changes as the volume of the gas inside the child bag 12 changes. This is shown in FIG. When the volume of the gas in the child bag 12 is increased by the child bag volume control unit 2, the pressure applied to the surface of the parent bag 11 in contact with the child bag 12 increases, and the shape of the parent bag 11 changes.

  FIG. 5 shows the bag-like device 1 embedded in a stuffed animal. In this way, for example, the user holding the stuffed toy can be given a feeling that the stuffed toy moves. Similarly, it can be embedded in things such as pillows and cushions. Thus, it is possible to give a sensation to the head of a sleeping person, hold a cushion, or give a sensation to a person sitting on the cushion.

  As described above, in the first embodiment, the bag-shaped device device 100 includes the bag-shaped device 1, the child bag volume adjusting unit 2, and the device control unit 3. The bag-like device 1 includes a parent bag 11 made of a vinyl material and encapsulated with gas, and a child bag 12 formed in a part of the parent bag 11 and enclosing gas and having a smaller volume than the parent bag 11. The CPU 31 transmits the value input by the external input I / F 32 to the child bag volume adjustment unit 2 as the target position of the piston 21. In the child bag volume control unit 2, the piston 21 is moved by the motor 22 based on this value. As a result, the shape of the parent bag 11 changes as the volume of the gas inside the child bag 12 changes.

  For example, if the volume inside the main bag 11 is directly controlled by an air pump or the like, the air pump is huge compared to the main bag 11 and the device configuration becomes large, and noise is generated when the air pump is controlled. There is a problem in terms of use. Moreover, when decompressing the inside of a bag, the method of extracting air from the inside of a bag must be utilized, and there also exists a problem that the control is very difficult. Further, in the method of simply connecting the piston to the main bag 11 and controlling the volume inside the main bag 11 by the movement of the piston, when the bag becomes large, the piston becomes huge and the apparatus configuration becomes large. There is a point. In addition, when the bag becomes large, the reaction speed of pressurization / decompression slows down, and there is a problem that it is difficult to convey a person's breathing and subtle vibration sensation.

  On the other hand, in the said 1st Embodiment, by providing the small bag 12 in a part of the main bag 11, and changing the volume of the small bag 12, the volume inside the main bag 11 directly with the same amount of air. It is possible to provide a bag-like device device 100 that has a faster reaction speed, a quieter sound, and a better human sense.

  Moreover, the bag-like device 1 can also be configured as follows. For example, as shown in FIG. 6, the parent bag 11 and the child bag 12 are configured as independent bags, and the bag-like device 1 can be formed by bonding the parent bag 11 and the child bag 12 together. . Thus, the present invention can be easily implemented by simply pasting together a bag-shaped member such as a commercially available vinyl material.

  In the said 1st Embodiment, although the bag-shaped device 1 was comprised using the rectangular parallelepiped main bag 11 and the child bag 12, this can also be comprised using another shape. For example, a stuffed animal made of a vinyl material may be used for the parent bag. Further, as shown in FIG. 7, the bag-like device 1 is configured using a small bag 12 having an arbitrary size such as a circle, an ellipse, a square, or a special figure. Accordingly, it is possible to apply a commercially available stuffed animal material as a bag-like device 1 as it is, or to configure the bag-like device 1 using a shape that is responsive to the movement of the piston 21. It becomes possible.

  Moreover, it can also form so that the parent bag 11 may be equipped with the some child bag 12. FIG. Specifically, for example, as shown in FIG. 8, an apparatus configuration using a parent bag 11 provided with child bags 12 on the head and abdomen of the stuffed toy can be used. By doing in this way, a sensation can be presented independently by the stuffed toy head and abdomen, and a sensation presentation according to the part can be performed.

(Second Embodiment)
In the first embodiment, the bag-like device 1 is controlled by a volume dial, that is, direct input means. In the second embodiment of the present invention, by applying the bag-like device device to voice communication by an existing telephone, it is possible to configure a communication device that adds a sense of voice. FIG. 9 is a schematic view of a system in which sensory presentation is added to a telephone voice call by configuring the bag-like device device to respond to voice. As shown in FIG. 9, each has a bag-like device device via a telephone line.

  FIG. 10 is a block diagram showing the configuration of the bag-like device device showing the second embodiment of the present invention. The same parts as those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted. A telephone terminal is connected to the bag-like device device 100A by a wireless or wired line, and voice sent from the other party is input via the telephone line.

  The bag-shaped device device 100A includes a bag-shaped device 1, a child bag volume adjusting unit 2, and a device control unit 3A. The bag-like device 1 is embedded in a cushion or the like, and the user receives a sense transmitted from the bag-like device 1 through the cushion. The device control unit 3A includes a CPU 31 and a voice sensation extraction unit 33. The voice sensation extraction unit 33 detects the magnitude of the input voice under the control of the CPU 31 and controls the child bag volume adjustment unit 2 based on the magnitude.

The operation of the bag-shaped device device 100A configured as described above will be described. FIG. 11 is a flowchart showing the processing procedure and contents of the bag-like device device 100A.
CPU31 will extract the magnitude | size of an audio | voice based on the acquired audio | voice information, if audio | voice information is acquired from a telephone terminal in step S11a. In step S11b, the voice sensation extraction unit 33 generates a sensation parameter corresponding to the size of the sensation presented by the bag-like device 1 based on the extracted size information under the control of the CPU 31. CPU31 transmits this produced | generated sensory parameter to the child bag volume control part 2 (step S11c). The child bag volume adjusting unit 2 adjusts the volume of the gas inside the child bag 12 according to the received sensory parameter (step S11d). This presents the user with a sense based on the voice of the other party.

  As described above, according to the second embodiment, a sense based on the input voice can be presented to the user by the bag-like device 1. For example, when the voice is loud, it is determined that the conversation is exciting, and the bag-like device 1 is vibrated quickly or the degree of deformation is increased. Thereby, it is possible to perform voice communication with a feeling such as vibration and shape change by the bag-like device 1. Note that the voice sensation extraction unit 33 may generate a sensation parameter corresponding to the size of the sensation to be presented based on not only the volume of the voice but also the height of the voice.

(Third embodiment)
According to the third embodiment of the present invention, a communication device in which a sense of character is added can be configured by applying the bag-like device device to communication using an existing character chat. FIG. 12 is a schematic diagram of a system in which sensory presentation is added to chat communication by configuring a bag-like device device so as to respond to character chat by a personal computer (PC). As shown in FIG. 12, each has a bag-like device device via a communication network such as the Internet.

  FIG. 13: is a block diagram which shows the structure of the bag-shaped device apparatus which shows 3rd Embodiment of this invention. The same parts as those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted. A PC is connected to the bag-like device device 100B via a wireless or wired line, and character information sent from the other party is input via a communication network.

  The bag-shaped device device 100B includes a bag-shaped device 1, a child bag volume adjusting unit 2, and a device control unit 3B. The bag-like device 1 is embedded in a cushion or the like, and the user receives a sense transmitted from the bag-like device 1 through the cushion. The device control unit 3B includes a CPU 31 and a character sense extraction unit 34. The character sense extraction unit 34 detects the input speed of characters from the input character information under the control of the CPU 31 and controls the child bag volume adjustment unit 2 based on the speed.

The operation of the bag-like device device 100B configured as described above will be described. FIG. 14 is a flowchart showing the processing procedure and contents of the bag-like device device 100B.
When the character information is input from the PC, the CPU 31 acquires the number of characters input from the input character information in step S14a. Next, the CPU 31 calculates a character input speed by the character sense extraction unit 34 based on the acquired number of inputs (step S14b). Further, in step S <b> 14 c, the character sense extraction unit 34 generates sensory parameters corresponding to the size of the sense presented by the bag-like device 1 based on the calculated input speed. CPU31 transmits this produced | generated sensory parameter to the child bag volume control part 2 (step S14d). The child bag volume adjustment unit 2 adjusts the volume of gas inside the child bag 12 according to the received sensory parameter (step S14e). This presents the user with a sense based on text information coming from the chat communication partner.

  As described above, according to the third embodiment, a sensation based on the input character information can be presented to the user by the bag-like device 1. Thereby, it becomes possible to perform character chat communication to which a sense such as vibration or shape change by the bag-like device 1 is added. For example, when the input speed is fast, it can be determined that the exchange in chatting is exciting, and the bag-like device 1 can be vibrated quickly or the degree of deformation can be increased. Note that the character sense extraction unit 34 may generate a sensory parameter corresponding to the size of a sense to be presented based on not only the character input speed but also the content of the character.

(Fourth embodiment)
According to a fourth embodiment of the present invention, the bag-like device device further includes means for measuring the pressure in the child bag or means for measuring the pressure in the parent bag, and transmits the measured pressure information to the other party. Thus, bidirectional communication by the bag-like device is enabled.
FIG. 15 is a schematic diagram of a system that performs two-way communication using a bag-like device. The bag-like device device is used between users connected via a network and can share the feeling of pressing the cushion between users. Specifically, when the user X hugs the cushion X, the cushion Y of the counterpart user Y swells. In other words, it is an operation feeling that pushes two balloons virtually connected. The equilibrium state is a state in which the position of the piston 21 of the child bag volume adjusting unit 2 that controls the cushions X and Y is stationary at the center.

  FIG. 16: is a block diagram which shows the structure of the bag-shaped device apparatus which shows 4th Embodiment of this invention. The same parts as those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted. The bag-shaped device device 100C includes a bag-shaped device 1, a child bag volume adjusting unit 2, and a device control unit 3C. The bag-like device 1 is embedded in a cushion or the like as shown in FIG. 15, and the user receives a sense transmitted from the bag-like device 1 through the cushion.

  The device control unit 16 includes a CPU 31, a communication interface (communication I / F) 35, and a baby bag pressure measurement unit 26. The communication I / F 35 transmits / receives atmospheric pressure information of the child bag 12 to / from the counterpart bag-like device device via the communication network. The child bag pressure measuring unit 36 is a barometric pressure sensor, and transmits the pressure information in the child bag 12 measured sequentially to the CPU 31. When the CPU 31 receives the atmospheric pressure information from the child bag atmospheric pressure measurement unit 36, the CPU 31 sequentially transmits the atmospheric pressure information received by the communication I / F 35 to the counterpart bag-like device device via the communication network.

The operation of the bag-shaped device device 100C configured as described above will be described. FIG. 17 is a flowchart showing the processing procedure and contents of the bag-shaped device device 100C.
In step S <b> 17 a, the CPU 31 acquires atmospheric pressure information coming from the counterpart bag-like device device through the communication I / F 35. In step S <b> 17 b, the CPU 31 acquires atmospheric pressure information in the child bag 12 measured by the child bag pressure measuring unit 36.

  Next, in step S17c, the CPU 31 compares both pieces of acquired atmospheric pressure information, and calculates the difference between the measured atmospheric pressure information in the child bag 12 and the other party's atmospheric pressure information (step S17d). In step S17e, if the measured pressure in the child bag 12 is large, the child bag volume adjusting unit 2 is instructed to pull the piston 21 based on the calculated difference information. On the other hand, when the other party's atmospheric pressure is large, an instruction is given to push the piston 21 into the child bag volume control unit 2 based on the difference information.

  As a result, a communication device that can share the feeling of holding a cushion can be realized. In the third embodiment, the atmospheric pressure information of the child bag 12 is used. However, the atmospheric pressure information of the parent bag 11 can also be used. In the case of performing control with higher accuracy, it is preferable to control the pressure information of the parent bag 11 and the child bag 12 at the same time. In this case, the CPU 31 receives the parent bag pressure information and the child bag pressure information from the parent bag pressure measurement unit and the child bag pressure measurement unit, and weights the pressure that tends to change in pressure, so that the pressure information is obtained. Is generated and compared with the atmospheric pressure information coming from the other side, and the piston is controlled.

(Other embodiments)
The present invention is not limited to the above embodiments. In each of the embodiments described above, the present invention is used as a means for transmitting a feeling of breathing the shape change of the child bag 12 or a feeling of shaking or cuddling to the communication partner via the network. Furthermore, the present invention can be applied as an actuator capable of moving a doll or a stuffed toy limb with a natural motion by inserting a child bag into the joint portion and configuring the link portion as a parent bag.

  FIG. 18 shows an operation example in which the upper portion of the shaft of the parent bag is tilted between the hands by contracting the shape of the child bag, and a configuration example thereof. Specifically, the parent bag 11 has a hollow portion, and the child bag 12 is formed in the hollow portion. By configuring the bag-like device 1 in this manner, the volume of the gas inside the child bag 12 is reduced by the child bag volume adjusting unit 2 and the shape of the child bag 12 is contracted, so that the depression part of the parent bag 11 is reduced. Can be bent to the center. On the other hand, by increasing the volume of gas inside the child bag 12 and expanding the shape of the child bag 12, the parent bag 11 can be stretched around the recessed portion. By using the bag-like device device in this way, it is possible to construct a system that can express a sense of breathing and movement of limbs with stuffed animals. In addition, the material, shape and configuration of the bag-like device 1, the control procedure and control contents of the bag-like device 1, etc. can be variously modified and implemented without departing from the gist of the present invention.

  In short, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in each embodiment. Furthermore, you may combine suitably the component covering different embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram which shows 1st Embodiment of the bag-shaped device apparatus concerning this invention. The block diagram which shows the structure of the bag-shaped device apparatus shown in FIG. The figure which shows an example of a structure of a bag-shaped device. The figure which shows a mode that the shape of a bag-shaped device changes. The figure which shows a mode that the bag-like device was embedded in the stuffed animal. The figure which shows the other structure of a bag-shaped device. The figure which shows the other structure of a bag-shaped device. The figure which shows the other structure of a bag-shaped device apparatus. The schematic block diagram of the communication system using the bag-shaped device apparatus concerning 2nd Embodiment. The block diagram which shows the structure of the bag-shaped device apparatus concerning 2nd Embodiment. The flowchart which shows the process sequence and the content of the bag-shaped device apparatus shown in FIG. The schematic block diagram of the communication system using the bag-shaped device apparatus concerning 3rd Embodiment. The block diagram which shows the structure of the bag-shaped device apparatus concerning 3rd Embodiment. The flowchart which shows the process sequence and the content of the bag-shaped device apparatus shown in FIG. The schematic block diagram of the communication system using the bag-shaped device apparatus concerning 4th Embodiment. The block diagram which shows the structure of the bag-shaped device apparatus concerning 4th Embodiment. The flowchart which shows the process sequence and the content of the bag-shaped device apparatus shown in FIG. The figure which shows the structure of the bag-shaped device in the case of utilizing as an actuator.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100,100A, 100B, 100C ... Bag-shaped device apparatus, 1 ... Bag-shaped device, 2 ... Child bag volume control part, 3, 3A, 3B, 3C ... Device control part, 11 ... Parent bag, 12 ... Child bag, 21 ... Piston, 22 ... Motor, 23 ... Potentiometer, 31 ... CPU, 32 ... External input I / F, 33 ... Voice sensation extraction unit, 34 ... Character sensation extraction unit, 35 ... Communication I / F, 36 ... Child bag Barometric pressure measurement unit.

Claims (13)

A first bag filled with gas;
A second bag formed on a part of the first bag, filled with gas, and having a smaller volume than the first bag;
A bag-like device device comprising: adjusting means for adjusting the volume of gas inside the second bag based on input information.   The bag-like device device according to claim 1, wherein the second bag is formed by attaching a peripheral edge of a sheet-like member to the outside of the first bag.   The bag-like device device according to claim 1, wherein the second bag is formed by attaching a peripheral edge of a sheet-like member to the inside of the first bag.   2. The bag-like device device according to claim 1, wherein the second bag is constituted by a bag independent of the first bag, and a part thereof is bonded to the first bag.   The bag-like device device according to claim 1, wherein the second bag is formed at a plurality of locations of the first bag. Furthermore, an acquisition means for acquiring audio information is provided,
The bag-like device device according to claim 1, wherein the adjusting unit adjusts a volume of gas inside the second bag based on voice information acquired by the acquiring unit. Furthermore, an acquisition means for acquiring character information is provided,
The bag-like device device according to claim 1, wherein the adjusting means adjusts the volume of gas inside the second bag based on the character information acquired by the acquiring means. And measuring means for measuring the pressure of the gas inside at least one of the second bag or the first bag;
Transmitting means for transmitting pressure information measured by the measuring means via a communication line;
Receiving means for receiving pressure information via the communication line,
2. The bag-like device device according to claim 1, wherein the adjusting unit adjusts a volume of gas inside the second bag based on pressure information received by the receiving unit. The first bag has a recessed portion;
The second bag is formed in the hollow portion,
2. The bag-like device device according to claim 1, wherein the volume of the gas inside the second bag is changed by the adjusting means, and the first bag is bent and stretched at the recessed portion. Used for a bag-like device device comprising a first bag filled with gas and a second bag formed in a part of the first bag, filled with gas, and having a smaller volume than the first bag. And
A control method comprising adjusting a volume of gas inside the second bag based on input information. Furthermore, it acquires audio information,
The control method according to claim 10, wherein a volume of a gas inside the second bag is adjusted based on the acquired voice information. In addition, get character information,
The control method according to claim 10, wherein the volume of the gas inside the second bag is adjusted based on the acquired character information. Furthermore, the pressure of the gas inside the second bag is measured,
Transmitting the measured pressure information via a communication line;
Receiving pressure information via the communication line;
The control method according to claim 10, wherein a volume of a gas inside the second bag is adjusted based on the received pressure information.

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