JP2021157393A - Information processor and control device - Google Patents

Abstract

To provide an information processor and a control device capable of enhancing both touch operation for a display with a touch panel and angle adjustment of the display with the touch panel.SOLUTION: An information processor includes: a display with a touch panel; a support unit that supports posture of the display with the touch panel in an adjustable manner; a lock unit that locks adjustment of the posture of the display by the support unit; a determination unit that determines whether or not the touch operation on the display with the touch panel is a change operation for changing the posture of the display; and a control unit that releases, when it is determined that the change operation is performed, the lock by the lock unit.SELECTED DRAWING: Figure 3

Description

The present invention relates to an information processing device and a control device.

In recent years, in an information processing device, a touch operation on a touch panel of a display with a touch panel has been used. The angle of a display connected to a desktop personal computer or a display of a notebook personal computer can be adjusted by a movable part such as a hinge. In such a movable part, the torque is adjusted so that the angle does not easily change by the touch operation and the angle of the display can be easily adjusted by the angle adjusting operation.

Japanese Unexamined Patent Publication No. 2015-098937 JP-A-2016-122464 International Publication 2016/203526

In the display, there is a difference in the torque applied to the movable portion between the touch operation on the region away from the movable portion and the touch operation on the region near the movable portion. Therefore, if an appropriate torque is set for the movable part for a touch operation on the area near the movable part, the angle of the display may fluctuate when the touch operation is performed on the area away from the movable part. be. Further, if an appropriate torque is set for the movable portion for a touch operation on a region away from the movable portion, the angle of the display may not be easily adjusted.

One aspect of the disclosed technology is to provide an information processing device and a control device capable of enhancing both touch operation on a display with a touch panel and posture adjustment of the display with a touch panel.

One aspect of the disclosed technology is exemplified by the following information processing apparatus. The information processing apparatus includes a display with a touch panel, a support portion for adjustablely supporting the posture of the display with the touch panel, a lock portion for locking the adjustment of the posture of the display with the touch panel by the support portion, and the display with the touch panel. A determination unit that determines whether or not the touch operation to is a change operation that changes the posture of the display with the touch panel, and a control unit that releases the lock by the lock unit when it is determined that the touch operation is the change operation. , Equipped with.

The disclosed technology can enhance the operability of both the touch operation on the display with the touch panel and the posture adjustment of the display with the touch panel.

FIG. 1 is a diagram illustrating the appearance of a notebook-type personal computer according to an embodiment. FIG. 2 is a diagram showing an example of the hardware configuration of the notebook type personal computer according to the embodiment. FIG. 3 is a diagram showing an example of a processing block of the notebook type personal computer according to the embodiment. FIG. 4 is a diagram illustrating a touch operation for an area where the icon is not displayed in the embodiment. FIG. 5 is a diagram showing an example of a touch operation pattern indicating that the operation is a change operation for changing the posture of the display in the embodiment. FIG. 6 is a diagram showing an example of a processing flow of the notebook type personal computer according to the embodiment. FIG. 7 is a first diagram illustrating the appearance of the display device according to the first modification. FIG. 8 is a second diagram illustrating the appearance of the display device according to the first modification. FIG. 9 is a diagram illustrating a hardware configuration of the display device according to the first modification.

<Embodiment>
The configurations of the embodiments shown below are examples, and the disclosed technology is not limited to the configurations of the embodiments. The information processing apparatus according to the embodiment includes, for example, the following configuration.
The information processing device according to this embodiment is
Display with touch panel and
A support portion that supports the posture of the display with a touch panel in an adjustable manner, and
A lock portion that locks the posture adjustment of the display with a touch panel by the support portion, and a lock portion.
A determination unit for determining whether or not the touch operation on the display with the touch panel is a change operation for changing the posture of the display with the touch panel.
A control unit for releasing the lock by the lock unit when it is determined that the change operation is performed is provided.

The information processing device is, for example, a notebook type personal computer. A display with a touch panel is a display in which a touch panel for detecting a touch operation is superimposed on a display unit such as a liquid crystal display. The touch panel may be provided, for example, up to the edge portion of the display (the portion where the display unit is not provided). In a notebook-type personal computer, a display with a touch panel is supported by a support portion. The support is, for example, a hinge. The hinge includes a tilt, swivel, height, rotor, arm, etc., and enables the posture of the display with a touch panel to be adjusted. The lock portion is a member that locks the support portion so that the posture of the display with a touch panel cannot be adjusted. The lock unit unlocks the support unit under the control of the control unit. There is no limitation on the method of locking the support portion by the lock portion, and various methods can be adopted.

In a notebook-type personal computer or the like, a touch operation is performed on a display with a touch panel. Further, in a notebook type personal computer or the like, posture adjustment including angle adjustment of a display with a touch panel may be performed. In the conventional technique, the resistance to the adjustment (for example, the torque of the rotating support portion) is adjusted so as to suppress the shaking and the fluctuation of the posture of the display with the touch panel during the touch operation and to facilitate the adjustment of the posture. rice field. However, in such a technique, if it is important to suppress the shaking of the display with a touch panel and the fluctuation of the posture during the touch operation, a large force is required when adjusting the posture. Further, if emphasis is placed on facilitating the adjustment of the posture, the display with the touch panel sways and the posture fluctuates greatly during the touch operation.

When the touch operation on the touch panel is a change operation for changing the posture of the display with the touch panel, the information processing apparatus can easily adjust the posture by releasing the lock by the lock portion. In addition, when the touch operation to the touch panel is not a change operation to change the posture of the display with the touch panel, the lock by the lock portion is maintained to suppress the shaking and the fluctuation of the posture of the display with the touch panel during the touch operation. Can be done. That is, the information processing apparatus can enhance both the touch operation on the display with the touch panel and the posture adjustment of the display with the touch panel.

In the information processing apparatus, the determination unit displays an icon on the display with a touch panel, and the determination unit performs the change operation when the touch operation is performed in a manner different from the touch operation for the icon. It may be determined that. Touch operations are often performed on icons in order to start programs or call various functions. Examples of the touch operation different from the touch operation on the icon include a touch operation performed on a plurality of icons at the same time, a touch operation on an area where the icon is not displayed, and the like. Examples of the area where the icon is not displayed include an area where the icon is not displayed in the display unit and the edge of the display where the display unit is not provided.

Further, the determination unit may determine that the change operation is performed when the touch operation and the touch pattern stored in advance match. Further, the determination unit may determine that the touch operation is the change operation when the touch operation is a touch operation for an area larger than a preset area. Further, the information processing apparatus further includes a hardware key, and the determination unit determines that the change operation is performed when the operation for the hardware key and the touch operation for the touch panel are performed at the same time. May be good. The hardware key may be a keyboard or a physical button provided on a display with a touch panel. By providing such a feature, the information processing apparatus can easily determine whether or not the operation is a change operation.

The technique according to the embodiment can also be grasped from the side of the control device. The control device according to the embodiment is
A control device connected to a display device including a display with a touch panel, a support portion for adjustablely supporting the posture of the display with the touch panel, and a lock portion for locking the adjustment of the posture of the display with the touch panel by the support portion. And
A determination unit for determining whether or not the touch operation to the touch panel is a change operation for changing the posture of the display with the touch panel.
A control unit for releasing the lock by the lock unit when it is determined that the change operation is performed is provided.

The control device is, for example, a device including a processor, a memory, and the like, and capable of controlling various hardware. The control device may be built in a display with a touch panel and connected by an internal circuit. That is, the control device and the display with a touch panel may be integrated. Further, the control device may be a desktop personal computer connected to a display with a touch panel by a cable or wireless communication. Similar to the information processing device, the control device is a touch operation on the display with a touch panel by releasing the lock by the lock unit when the touch operation on the touch panel is a change operation for changing the posture of the display with the touch panel. It is possible to improve the operability of both the display and the posture adjustment of the display.

Hereinafter, an embodiment in which the above information processing apparatus is applied to a notebook type personal computer will be further described with reference to the drawings. FIG. 1 is a diagram showing an example of a notebook type personal computer according to an embodiment. The notebook type personal computer 1 includes a main body 11 and a display 12. Hereinafter, in the present specification, the notebook type personal computer 1 is also referred to as a notebook computer 1.

The main body 11 includes a keyboard 111 and a touch pad 112. Further, the main body 11 includes a processor, a memory, and the like (not shown). The display 12 includes a display unit 121, an edge portion 123, and a touch panel 122. The main body 11 and the display 12 are rotatably connected by a hinge 13. The hinge 13 is an example of a “support portion”.

In the display 12, the edge portion 123 surrounds the display portion 121. The edge 123 is also referred to as a frame. The touch panel 122 is provided so as to cover the display portion and the edge portion 123. That is, the touch panel 122 is also provided on the edge portion 123, which is an area where the display unit 121 does not display an image.

FIG. 2 is a diagram showing an example of the hardware configuration of the notebook type personal computer according to the embodiment. The notebook computer 1 includes a Central Processing Unit (CPU) 201, a main storage unit 202, an auxiliary storage unit 203, a communication unit 204, a keyboard 111, a touch pad 112, a display unit 121, a touch panel 122, a lock unit 131, and a connection bus B1. .. The CPU 201, the main storage unit 202, the auxiliary storage unit 203, the communication unit 204, the keyboard 111, the touch pad 112, the display unit 121, the touch panel 122, and the lock unit 131 are connected to each other by the connection bus B1.

The main body 11 includes a CPU 201, a main storage 202, an auxiliary storage 203, a communication unit 204, a keyboard 111, and a touch pad 112. The display 12 includes a display unit 121 and a touch panel 122. Further, a lock portion 131 is provided on the hinge 13 that rotatably connects the main body portion 11 and the display 12.

The CPU 201 is also called a microprocessor unit (MPU) or a processor. The CPU 201 is not limited to a single processor, and may have a multiprocessor configuration. Further, a single CPU 201 connected by a single socket may have a multi-core configuration. At least a part of the processing executed by the CPU 201 is performed by a processor other than the CPU 201, for example, a dedicated processor such as a Digital Signal Processor (DSP), a Graphics Processing Unit (GPU), a numerical arithmetic processor, a vector processor, or an image processing processor. You may. Further, at least a part of the processing executed by the CPU 201 may be executed by an integrated circuit (IC) or another digital circuit. Further, at least a part of the CPU 201 may include an analog circuit. Integrated circuits include Large Scale Integrated Circuits (LSIs), Application Specific Integrated Circuits (ASICs), and Programmable Logic Devices (PLDs). PLDs include, for example, Field-Programmable Gate Array (FPGA). The CPU 201 may be a combination of a processor and an integrated circuit. The combination is called, for example, a microcontroller unit (MCU), a system-on-a-chip (SoC), a system LSI, a chipset, or the like. In the notebook computer 1, the CPU 201 expands the program stored in the auxiliary storage unit 203 into the work area of the main storage unit 202, and controls peripheral devices through the execution of the program. As a result, the notebook computer 1 can execute a process that meets a predetermined purpose. The main storage unit 202 and the auxiliary storage unit 203 are recording media that can be read by the notebook computer 1.

The main storage unit 202 is exemplified as a storage unit that is directly accessed from the CPU 201. The main memory 202 is a Random Access Memory (RAM) and a Read.
Includes Only Memory (ROM).

The auxiliary storage unit 203 stores various programs and various data in a readable and writable recording medium. The auxiliary storage unit 203 is also called an external storage device. The auxiliary storage unit 203 stores an operating system (Operating System, OS), various programs, various tables, and the like. The OS includes a communication interface program that exchanges data with an external device or the like connected via the communication unit 204. External devices and the like include, for example, other information processing devices and external storage devices connected by a computer network or the like. The auxiliary storage unit 203 may be, for example, a part of a cloud system which is a group of computers on a network.

The auxiliary storage unit 203 is, for example, an Erasable Programmable ROM (EPROM), a solid state drive (Solid State Drive, SSD), a hard disk drive (Hard Disk Drive, HDD), or the like. Further, the auxiliary storage unit 203 is, for example, a Compact Disc (CD) drive device, a Digital Versail Disc (DVD) drive device, a Blu-ray (registered trademark) Disc (BD) drive device, or the like. In addition, the auxiliary storage unit 203 may be provided by the Network Attached Storage (NAS) or the Storage Area Network (SAN).

The communication unit 204 is, for example, an interface with a computer network. The communication unit 204 communicates with an external device via a computer network.

The keyboard 111, the touch pad 112, and the touch panel 122 are input units that receive operation instructions and the like from the user. A plurality of hardware keys (physical keys) are arranged on the keyboard 111, and when the hardware keys are pressed, an operation instruction or the like from a user is received. The touch pad 112 and the touch panel 122 detect a touch operation by a user's finger or the like.

The display unit 121 displays the data processed by the CPU 201 and the data stored in the main storage unit 202. Examples of the display unit 121 include a Liquid Crystal Display (LCD), a Plasma Display Panel (PDP), an Electroluminescence (EL) panel, an organic EL panel, and the like. The notebook computer 1 can provide an intuitive operation environment to the user by arranging the touch panel 122 superimposed on the display unit 121.

The lock portion 131 is a member that locks the rotation of the hinge 13 that rotatably connects the main body portion 11 and the display 12. The lock portion 131 may be formed of, for example, a material having a high coefficient of friction such as rubber, and the rotation of the hinge 13 may be locked by pressing the lock portion 131 against the hinge 13. The lock unit 131 is unlocked by the control of the lock control unit 42, which will be described later. The lock portion 131 is an example of a “lock portion”.

<Processing block of laptop computer 1>
FIG. 3 is a diagram showing an example of a processing block of the notebook type personal computer according to the embodiment. The notebook computer 1 includes a determination unit 41, a lock control unit 42, and a condition storage unit 43. In the notebook computer 1, the CPU 201 executes a computer program executably deployed in the main storage unit 202, so that the notebook computer 1 can be used as each unit of the notebook computer 1, such as the determination unit 41, the lock control unit 42, and the condition storage unit 43. Execute the process.

Based on the conditions stored in the condition storage unit 43, the determination unit 41 determines whether or not the operation is a touch operation indicating that the operation is a change operation for changing the posture of the display 12. The determination unit 41 is an example of a “determination unit”.

The lock control unit 42 controls the lock unit 131 to lock the hinge 13 when a predetermined time has elapsed since the notebook computer 1 was started. Further, when the determination unit 41 makes an affirmative determination, the lock control unit 42 controls the lock unit 131 to unlock the hinge 13. The lock control unit 42 is an example of a “control unit”.

The condition storage unit 43 stores information indicating a touch operation indicating that the touch operation on the touch panel 122 is a change operation for changing the posture of the display 12. The condition storage unit 43 stores, for example, information indicating a touch operation in a mode different from the touch operation for the icon. The touch operation in a mode different from the touch operation on the icon may be, for example, a touch operation on an area where the icon is not displayed. That is, the touch operation may be performed on the area of the touch panel 122 that overlaps with the edge portion 123 or the area of the area that overlaps with the display unit 121 where the icon is not displayed on the display unit 121.

FIG. 4 is a diagram illustrating a touch operation for an area where the icon is not displayed in the embodiment. In FIG. 4, a plurality of icons A are displayed on the display 12. In the example of FIG. 4, the touch operation by the finger F is performed on the area where none of the plurality of icons A is displayed. Information indicating such a touch operation may be stored in the condition storage unit 43. When the determination unit 41 determines that a touch operation different from the touch operation for the icon has been performed on the touch panel 122 with reference to the condition storage unit 43, the touch operation is a change operation for changing the posture of the display 12. It may be determined that.

The condition storage unit 43 may store, for example, information indicating a pattern of a touch operation indicating that the operation is a change operation for changing the posture of the display 12. FIG. 5 is a diagram showing an example of a touch operation pattern indicating that the operation is a change operation for changing the posture of the display in the embodiment. In FIG. 5, a so-called V-shaped touch operation pattern P1 that moves from diagonally upper left to diagonally lower right and then diagonally upward to the right is illustrated. The condition storage unit 43 may store information indicating a pattern of a touch operation indicating that the operation is such a change operation for changing the posture of the display 12. For example, when the locus of the touch operation with respect to the touch panel 122 matches the pattern P1 stored in the condition storage unit 43, the determination unit 41 may determine that the touch operation is a change operation for changing the posture of the display 12.

The condition storage unit 43 may store, for example, a threshold value of the area of the touch operation indicating that the operation is a change operation for changing the posture of the display 12. In this case, the determination unit 41 indicates that the touch operation is a change operation for changing the posture of the display 12 when the area of the touch operation detected by the touch panel 122 is equal to or larger than the threshold value stored in the condition storage unit 43. It may be determined that.

The condition storage unit 43 may store, for example, information indicating that any key of the hardware key and the touch operation on the touch panel 122 are pressed at the same time. Here, the hardware key is not limited to the key of the keyboard 111, and may be, for example, a hardware key provided on the display 12. In this case, when any key of the keyboard 111 and the touch operation to the touch panel 122 are pressed at the same time, the determination unit 41 may determine that the operation is a change operation for changing the posture of the display 12. ..

<Processing flow>
FIG. 6 is a diagram showing an example of a processing flow of the notebook type personal computer according to the embodiment. Hereinafter, an example of the processing flow of the notebook-type personal computer according to the embodiment will be described with reference to FIG.

In T1, the determination unit 41 determines whether or not a predetermined time has elapsed since the device was started. When the predetermined time has elapsed (YES at T1), the process proceeds to T2. If the predetermined time has not elapsed (NO at T1), the process of T1 is repeated.

At T2, the lock control unit 42 drives the lock unit 131 to lock the hinge 13. Since the hinge 13 is locked in the state of T2, even if the user performs a touch operation on the touch panel 122, the posture of the display 12 is prevented from fluctuating and the display 12 is suppressed from shaking.

In T3, the determination unit 41 determines whether or not the touch operation on the touch panel 122 is a change operation for changing the posture of the display 12. If it is a change operation (YES at T3), the process proceeds to T4. If it is not a change operation (NO at T3), the process of T3 is repeated.

At T4, the lock control unit 42 drives the lock unit 131 to unlock the hinge 13. Since the lock is unlocked at T4, the user can easily change the posture of the display 12. At T5, the determination unit 41 determines whether or not a predetermined time has elapsed. When the predetermined time has elapsed (YES at T5), the process proceeds to T2. If the predetermined time has not elapsed (NO at T5), the process of T5 is repeated.

In this processing flow, the unlocked state is maintained for a predetermined time (T1) after the device is started and for a predetermined time (T5) after the unlocking. Therefore, the user can easily change the posture to the display 12 during the predetermined time after the device is activated and the predetermined time after the lock is released. The length of the predetermined time may be appropriately determined based on the time required to change the posture of the display 12.

<Action and effect of the embodiment>
In the notebook computer 1 according to the embodiment, when the touch operation on the touch panel 122 is not a change operation for changing the posture of the display 12 (NO in T3), the lock of the hinge 13 is maintained. Therefore, it is possible to prevent the posture of the display 12 from fluctuating or the display 12 from shaking due to the touch operation on the touch panel 122. Since the hinge 13 is locked, the notebook computer 1 suppresses the posture change of the display 12 and the shaking of the display 12 even if a touch operation is performed on the display 12 at a position away from the hinge 13 (for example, the upper end portion). be able to.

On the other hand, when the touch operation on the touch panel 122 is a change operation for changing the posture of the display 12 (NO at T3), the lock control unit 42 unlocks the hinge 13 (T4), so that the display 12 is displayed. The posture of is easily changeable. That is, the notebook computer 1 according to the embodiment can enhance both the touch operation on the touch panel 122 and the angle adjustment of the display 12.

In the present embodiment, the determination unit 41 can determine the change operation based on various conditions by storing the information indicating the change operation for changing the posture of the display 12 in the condition storage unit 43. That is, according to the present embodiment, the conditions for determining the change operation can be flexibly set.

<First modification>
In the embodiment, a technique for enhancing the operability of both the touch operation and the posture change of the display 12 by the notebook computer 1 has been described. However, the disclosed technology is not limited to the notebook computer 1. The disclosed technique may be applied, for example, to a display device. Hereinafter, the first modification will be described with reference to the drawings. The same components as those in the embodiment are designated by the same reference numerals, and the description thereof will be omitted.

7 and 8 are views illustrating the appearance of the display device according to the first modification. FIG. 7 is a front view of the display device 12a. FIG. 8 is a side view of the display device 12a. The display device 12a includes a display unit 121, a main body unit 300 having a touch panel 122 arranged so as to overlap the display unit 121, and a support leg 302 having a hinge 13a.

The support legs 302 support the main body 300 so that the posture can be changed by the hinge 13a. By supporting the main body 300 so that its posture can be changed, the posture can be changed to a horizontally elongated state in which the longitudinal direction is horizontally rearward, a vertically elongated state in which the longitudinal direction is vertical, and the like. Further, the angle of the display unit 121 with respect to the line of sight can be adjusted in various ways.

FIG. 9 is a diagram illustrating a hardware configuration of the display device according to the first modification. The main body 300 of the display device 12a includes a control device 301, a display unit 121, and a touch panel 122.

The control device 301 includes a CPU 201, a main storage unit 202, and an auxiliary storage unit 203. The control device 301 serves as each unit such as the determination unit 41, the lock control unit 42, and the condition storage unit 43 illustrated in FIG. 3 by the CPU 201 executing a computer program executably deployed in the main storage unit 202. The process can be executed.

That is, in the first modification, each unit realized by the control device 301 can control the locked state of the hinge 13a by controlling the lock unit 131. Therefore, the operability of both the touch operation on the touch panel 122 and the angle adjustment of the main body 300 of the display device 12a can be improved by the first modification.

Here, in the first modification, the control device 301 is built in the main body 300 of the display device 12a, but the control device 301 may be a desktop personal computer connected to the display device 12a. That is, instead of the control device 301, the desktop personal computer controls the lock portion 131 to control the locked state of the hinge 13a, and touch operation with respect to the touch panel 122 and angle adjustment of the main body portion 300 of the display device 12a. Any operability may be enhanced.

The embodiments and modifications disclosed above can be combined with each other.

<< Computer-readable recording medium >>
An information processing program that enables a computer or other machine or device (hereinafter, computer or the like) to realize any of the above functions can be recorded on a recording medium that can be read by the computer or the like. Then, the function can be provided by causing a computer or the like to read and execute the program of this recording medium.

Here, a recording medium that can be read by a computer or the like is a recording medium that can store information such as data and programs by electrical, magnetic, optical, mechanical, or chemical action and can be read from the computer or the like. To say. Among such recording media, those that can be removed from a computer or the like include, for example, a flexible disc, an optical magnetic disc, a Compact Disc Read Only Memory (CD-ROM), a Compact Disc-Recordable (CD-R), and a Compact Disc-ReWriterable. (CD-RW), Digital Versatile Disc (DVD), Blu-ray Disc (BD), Digital Audio Tape (DAT), 8 mm tape, memory cards such as flash memory, and the like. In addition, there are hard disks, ROMs, and the like as recording media fixed to computers and the like.

1: Notebook type personal computer, notebook computer 11: Main body 111: Keyboard 112: Touch pad 12: Display 121: Display 122: Touch panel 123: Edge 12a: Display device 13, 13a: Hinge 131: Lock 201: CPU
202: Main storage unit 203: Auxiliary storage unit 204: Communication unit 300: Main unit 301: Control device 302: Support leg 41: Judgment unit 42: Lock control unit 43: Conditional storage unit

Claims (7)

Display with touch panel and
A support portion that supports the posture of the display with a touch panel in an adjustable manner, and
A lock portion that locks the posture adjustment of the display with a touch panel by the support portion, and a lock portion.
A determination unit for determining whether or not the touch operation on the display with the touch panel is a change operation for changing the posture of the display with the touch panel.
A control unit for releasing the lock by the lock unit when it is determined that the change operation is performed is provided.
Information processing device. An icon is displayed on the display with a touch panel.
When the touch operation is performed in a mode different from the touch operation for the icon, the determination unit determines that the change operation is performed.
The information processing device according to claim 1. The determination unit determines that the change operation is performed when the touch operation is performed on the area of the display with the touch panel where the icon is not displayed.
The information processing device according to claim 2. When the touch operation and the touch pattern stored in advance match, the determination unit determines that the change operation is performed.
The information processing device according to claim 1 or 2. When the touch operation is a touch operation for an area larger than a preset area, the determination unit determines that the touch operation is the change operation.
The information processing device according to claim 1 or 2. With more hardware keys
The determination unit determines that the change operation is performed when the operation for the hardware key and the touch operation for the display with the touch panel are performed at the same time.
The information processing device according to claim 1 or 2. A control device connected to a display device including a display with a touch panel, a support portion for adjustablely supporting the posture of the display with the touch panel, and a lock portion for locking the adjustment of the posture of the display with the touch panel by the support portion. And
A determination unit for determining whether or not the touch operation on the display with the touch panel is a change operation for changing the posture of the display with the touch panel.
A control unit for releasing the lock by the lock unit when it is determined that the change operation is performed is provided.
Control device.

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