JP2022003733A - Information processing device, information processing system, method, and program - Google Patents

Abstract

To provide an information processing device, an information processing system, a method, and a program that are easy to switch connection modes of access points.SOLUTION: In an information processing system 100, a server 110 that controls connection between a communication terminal and an access point 130 includes; a communication unit 311 that acquires a drawn image drawn on an electronic blackboard 120 capable of drawing an image; and a mode switching requesting unit 314 that requests switching of a mode to connect the communication terminal and the access point 130 when the drawn image acquired by the communication unit 311 matches a predetermined image.SELECTED DRAWING: Figure 3

Description

The present invention relates to an information processing device, an information processing system, a method and a program for switching connection settings to an access point.

A service is provided in which access points are installed in stores, facilities, buildings, etc., and smart phone terminals and the like are connected to the network via wireless LAN.

In the above-mentioned service, the quality of the communication service is stabilized by setting an upper limit on the number of terminals that can be connected to the access point and by asking the terminal user to input a password.

By the way, in the above-mentioned services, in the event of an emergency such as a disaster, the connection to the access point is opened to the public, and a communication service is provided for the purpose of collecting information and confirming the safety in the event of a disaster. In some cases. In such a case, the access point setting is switched to a mode in which the upper limit of the number of terminals that can be connected is raised, or a mode in which password input is not required.

As a technique for switching the connection mode of the access point in the event of an emergency, for example, Japanese Patent No. 6056251 (Patent Document 1) is known. Patent Document 1 discloses a technique of shutting down a specific LAN port in a state of high urgency and prohibiting connection between a wireless terminal device wirelessly connected in the state and a specific LAN device.

By the way, when switching the connection mode in the event of an emergency, it is required that the mode can be easily switched without complicated operation or advanced knowledge. However, in the prior art such as Patent Document 1, switching is performed based on an external notification such as an Earthquake Early Warning, and the connection mode is switched when the notification cannot be properly received. could not. Therefore, there has been a demand for a technique for easily switching the connection mode in the event of an emergency.

The present invention has been made in view of the above-mentioned problems in the prior art, and an object of the present invention is to provide an information processing device, an information processing system, a method, and a program in which the connection mode of an access point can be easily switched.

That is, according to the present invention.
An information processing device that controls the connection between a communication terminal and an access point.
An acquisition means for acquiring a drawn image drawn on a display device capable of drawing an image, and
An information processing apparatus is provided that includes requesting means for requesting switching of a mode for connecting the communication terminal and the access point when the drawn image acquired by the acquisition means matches a predetermined image.

According to the present invention, it is possible to provide an information processing device, an information processing system, a method and a program in which the connection mode of an access point can be easily switched.

The figure which shows the schematic structure of the hardware of the whole information processing system in this embodiment. The figure which shows the hardware configuration included in each apparatus constituting the information processing system of this embodiment. The software block diagram included in the information processing system of this embodiment. The flowchart which shows the process which the server of this embodiment executes. The figure explaining the switching of the connection mode of the access point in this embodiment. The figure explaining the information processing system which shifted to the emergency mode in this embodiment. The figure which shows the schematic structure of the hardware of the whole information processing system in another embodiment. A software block diagram included in an information processing system of another embodiment.

Hereinafter, the present invention will be described with reference to embodiments, but the present invention is not limited to the embodiments described later. In each of the figures referred to below, the same reference numerals are used for common elements, and the description thereof will be omitted as appropriate.

FIG. 1 is a diagram showing a schematic configuration of hardware of the entire information processing system 100 in the present embodiment. FIG. 1 illustrates a configuration in which a server 110, an electronic blackboard 120, and an access point 130 are connected as an example. The number of electronic blackboards 120 and access points 130 included in the information processing system 100 of the present embodiment is not limited to that shown in FIG. 1, and the number of electronic blackboards 120 and access points 130 included in the system is not limited. Further, the method of connecting each device may be wired communication or wireless communication.

The server 110 is an information processing device that provides the service of the present embodiment. The server 110 of the present embodiment performs processing such as transmission of an image to be displayed on the electronic blackboard 120 and analysis of an image drawn on the electronic blackboard 120. The server 110 of the present embodiment is also configured as a control device for switching the connection mode of the access point 130.

The electronic blackboard 120 is a device having display means for displaying various information. Further, the electronic blackboard 120 of the present embodiment can detect contact with the finger of the user performing the operation or the display means of a pointing device such as a so-called stylus pen, and can draw an image.

The access point 130 is a device that relays communication between the information processing terminal 140 and the network. FIG. 1 illustrates an access point 130 that is wirelessly communicating with two information processing terminals 140. Here, examples of the information processing terminal 140 include various communication terminals such as a smart phone terminal, a tablet terminal, and a personal computer terminal. The access point 130 of the present embodiment shown in FIG. 1 is set with an SSID (Service Set Identifier) that identifies the access point, a password for authenticating the connection with the information processing terminal 140, and the like. Further, the access point 130 of the present embodiment has a configuration capable of switching to an emergency mode in which the network communication service is open to the public in the event of an emergency such as a disaster.

Next, the hardware configuration of each device will be described. FIG. 2 is a diagram showing a hardware configuration included in each device constituting the information processing system 100 of the present embodiment, and FIG. 2A is a diagram showing the hardware configuration of the server 110 and the access point 130 in FIG. 2 (a). b) shows the hardware configuration of the electronic blackboard 120, respectively.

First, FIG. 2A will be described. The server 110 and the access point 130 of this embodiment are configured to include a CPU 210, a RAM 220, a ROM 230, a storage device 240, and a communication I / F 250, and each hardware is connected via a bus. The access point 130 may be configured not to include the storage device 240.

The CPU 210 is a device that executes a program that controls the operations of the server 110 and the access point 130 and performs predetermined processing. The RAM 220 is a volatile storage device for providing an execution space for a program executed by the CPU 210, and is used for storing and expanding programs and data. The ROM 230 is a non-volatile storage device for storing programs, firmware, and the like executed by the CPU 210.

The storage device 240 is a readable / writable non-volatile storage device that stores the OS, various applications, setting information, various data, etc. that make the server 110 and the access point 130 function. The communication I / F 250 connects the server 110 and the access point 130 to the network, and enables communication with other devices via the network. Communication via the network may be either wired communication or wireless communication, and various data can be transmitted and received using a predetermined communication protocol such as TCP / IP.

Next, FIG. 2B will be described. The electronic blackboard 120 of the present embodiment includes a CPU 210, a RAM 220, a ROM 230, a storage device 240, a communication I / F 250, and a display 260, and each hardware is connected via a bus. .. Since the CPU 210, RAM 220, ROM 230, storage device 240, and communication I / F 250 are the same as those described with reference to FIG. 2A, detailed description thereof will be omitted.

The display 260 is a device for displaying various images such as texts, photographs, and images, and examples thereof include an LCD (Liquid Crystal Display). Further, the display 260 of the present embodiment is configured as a so-called touch panel display, and can detect contact with an object. As a result, the user who operates the electronic blackboard 120 of the present embodiment can draw an image having an arbitrary shape.

The hardware configuration included in each device of the present embodiment has been described above. Next, the functional means executed by each hardware in the present embodiment will be described with reference to FIG. FIG. 3 is a software block diagram included in the information processing system 100 of the present embodiment.

As shown in FIG. 3, the server 110 includes modules of a communication unit 311, an image analysis unit 312, an image determination unit 313, a mode switching request unit 314, and a storage unit 315. Further, the electronic blackboard 120 includes each module of the communication unit 321, the display unit 322, and the contact position detection unit 323. Further, the access point 130 includes each module of the communication unit 331 and the connection setting unit 332.

First, the server 110 will be described. The communication unit 311 is a means for connecting to a network via the communication I / F 250 and communicating with other devices constituting the information processing system 100. For example, the communication unit 311 can communicate with the electronic blackboard 120, transmit an image to be displayed on the electronic blackboard 120, and receive an image drawn on the electronic blackboard 120. Further, the communication unit 311 can transmit a connection mode switching request to the access point 130.

The image analysis unit 312 is a means for analyzing an image drawn on the electronic blackboard 120 (hereinafter referred to as a “drawing image”). The image determination unit 313 is a means for determining whether or not a predetermined image stored in the storage unit 315 matches the analyzed drawn image based on the result analyzed by the image analysis unit 312. The determination result by the image determination unit 313 is output to the mode switching request unit 314.

The mode switching request unit 314 is a means for requesting the access point 130 to switch the connection mode via the communication unit 311 when the image determination unit 313 determines that the drawn image matches a predetermined image.

The storage unit 315 is a means for controlling the storage device 240 and storing an image for mode switching (hereinafter referred to as a “trigger image”). The storage unit 315 may be configured to store a plurality of trigger images according to the switching mode. Further, the storage unit 315 can store the image to be displayed on the electronic blackboard 120 as display information. Further, the storage unit 315 can store the IP address of the electronic blackboard constituting the information processing system 100 in order to communicate with the electronic blackboard 120.

Next, the electronic blackboard 120 will be described. The communication unit 321 is a means for connecting to a network via the communication I / F 250 and communicating with other devices constituting the information processing system 100. For example, the communication unit 321 can communicate with the server 110 to receive an image to be displayed on the electronic blackboard 120 and transmit a drawn image.

The display unit 322 is a means for controlling the operation of the display 260 and displaying various images on the display 260. The contact position detection unit 323 is a means for detecting the position of the user's finger or various pointing devices in contact with the display 260. When the contact position detection unit 323 continuously detects the contact position of the object, the display unit 322 can display the locus of the contact position as a drawn image.

Next, the access point 130 will be described. The communication unit 331 is a means for connecting to a network via the communication I / F 250 and communicating with other devices constituting the information processing system 100. For example, the communication unit 331 can communicate with the server 110 and receive a mode switching request. Further, the communication unit 331 can send a notification to the server 110 that the connection mode switching based on the mode switching request is completed.

The connection setting unit 332 is a means for setting the connection mode between the access point 130 and the information processing terminal 140. The connection setting unit 332 can set an upper limit of the number of information processing terminals 140 that can be connected to the access point, a password for authenticating the connection, and the like, and is appropriately based on the received mode switching request. You can change the settings. For example, when the access point 130 receives a request for switching to the emergency mode in the event of a disaster or the like, the connection setting unit 332 switches to the connection mode set as the emergency mode. Examples of emergency modes in the event of a disaster include a mode in which the upper limit of the number of terminals that can be connected is raised (including a mode in which the upper limit is unlimited), a mode that does not require password input, and a mode that combines these. The embodiment is not particularly limited.

The software block described above corresponds to a functional means realized by the CPU 210 executing the program of the present embodiment to make each hardware function. In addition, all of the functional means shown in each embodiment may be realized by software, or some or all of them may be implemented as hardware that provides equivalent functions. Further, all of the above-mentioned functional means may not necessarily be included in the configuration as shown in FIG.

Next, the process of switching the connection mode of the access point 130, which is executed by each of the above functional means, will be described. FIG. 4 is a flowchart showing a process executed by the server 110 of the present embodiment. Here, the case where the server 110 is switched to the emergency mode in the event of a disaster will be described as an example.

The server 110 starts processing from step S1000. In step S1001, the communication unit 311 of the server 110 requests the electronic blackboard 120 to transmit the drawn image. After that, in step S1002, the communication unit 311 acquires a drawn image from the electronic blackboard 120. The acquired drawn image is temporarily stored in the storage unit 315 of the server 110 or the like. In another preferred embodiment, the electronic blackboard 120 may be configured to periodically transmit a drawn image to the server 110, whereby the process of step S1001 can be omitted.

Next, in step S1003, the process is branched depending on whether or not the received drawn image and the trigger image stored in the storage unit 315 match. If the drawn image and the trigger image do not match (NO), the process returns to step S1001 and the above-mentioned process is repeated. If it does not match the trigger image, the drawn image is deleted from the server 110. If the drawn image and the trigger image match (YES), the process proceeds to step S1004.

The process in step S1003 is performed by the image analysis unit 312 analyzing the drawn image and the image determination unit 313 determining based on the analysis result and the trigger image. Matching images in step S1003 is not intended to be a perfect match. For example, considering that an image is drawn freehand on the electronic blackboard 120, the feature amount of the drawn image analyzed by the image analysis unit 312 and the feature amount of the trigger image are compared and matched at a ratio equal to or higher than the threshold value. If so, it can be determined that they match.

After step S1003, in step S1004, the mode switching request unit 314 transmits a request for switching the connection mode to the emergency mode to the access point 130. After that, in step S1005, the server 110 branches the process depending on whether or not the access point 130 has received the notification that the mode switching is completed. If the mode switching completion notification has not been received (NO), the process of step S1005 is repeated, and the mode switching completion notification is awaited. If the mode switching completion notification is received (YES), the process proceeds to step S1006.

In step S1006, the server 110 also sets the state of its own machine to the emergency mode. In step S1006, for example, the fact that a disaster has occurred, evacuation information, and the like can be distributed to one or more electronic blackboards 120 constituting the information processing system 100, and a display can be requested. After that, in step S1007, the server 110 ends the process.

In the process shown in FIG. 4, since the emergency mode can be switched by drawing a predetermined image on the electronic blackboard 120, the information processing system 100 can easily switch the connection mode of the access point 130. ..

In the process shown in FIG. 4, the drawn image acquired in step S1002 is targeted for determining whether or not it matches the trigger image, but in order to prevent unintended switching of the connection mode, the following Such processing may be performed. That is, the difference between the drawn image acquired at a certain time point and the drawn image acquired at the next time point may be calculated, and the connection mode may be switched when the difference matches the trigger image. As a result, even if an image that matches the trigger image is mistakenly drawn during the operation of the electronic blackboard 120, it is possible to prevent the user from unintentionally switching the connection mode.

Hereinafter, switching of the connection mode will be described with reference to specific examples shown in FIGS. 5 and 6. FIG. 5 is a diagram illustrating switching of the connection mode of the access point 130 in the present embodiment. In No. 5, the case where the information processing system 100 operated in the normal mode is switched to the emergency mode in the event of a disaster or the like is illustrated. The circled numbers in FIG. 5 indicate the order of processing, and will be described below as “processing 1” or the like.

As shown in FIG. 5, the user draws an image for switching to the emergency mode on the electronic blackboard 120 due to the occurrence of a disaster or the like (process 1). An example of a user who draws an image is an administrator of a facility in which the electronic blackboard 120 is installed, and it is assumed that the administrator grasps an image for switching the connection mode.

After that, the server 110 acquires the drawn image from the electronic blackboard 120 (process 2). The process 2 in FIG. 5 corresponds to step S1002 in FIG.

Next, the server 110 compares the acquired drawing image with the trigger image stored in the storage unit 315, and determines whether or not they match. FIG. 5 illustrates a case where the server 110 stores a trigger image for switching to the emergency mode and a trigger image for switching to the test mode. In the example of FIG. 5, it is determined that the image drawn in the process 1 matches the trigger image in the emergency mode.

Since it is determined in the process 3 that the drawn image matches the trigger image in the emergency mode, the server 110 sends a request to the access point 130 to switch the connection mode to the emergency mode (process 4).

Upon receiving the mode switching request from the server 110, the access point 130 switches the connection mode from the normal mode to the emergency mode (process 5). Switching to the emergency mode eliminates the need to enter a password to authenticate the connection to the access point, for example. Further, in the emergency mode, the name of the SSID may be changed to "free" or the like in order to make it easier for the information processing terminal 140 to recognize that the access point is open to the public. Further, in the emergency mode, the upper limit of the number of information processing terminals 140 that can be connected to the access point may be raised from that in the normal mode.

When the connection mode is switched to the emergency mode in process 5, the access point 130 sends a notification to the server 110 that the mode switching is completed (process 6).

Next, FIG. 6 will be described. FIG. 6 is a diagram illustrating an information processing system 100 that has transitioned to the emergency mode in the present embodiment. The process shown in FIG. 6 is started after the access point 130 transmits a notification that the mode switching is completed in the process 6 of FIG.

When the server 110 receives the mode switching completion notification from the access point 130, the server 110 also changes its own setting to the emergency mode (process 1).

After that, the server 110 transmits an alarm to the electronic blackboard 120 (process 2). The server 110 can transmit the image data of the alarm screen to be displayed on the electronic blackboard 120 together with the transmission of the alarm in the process 2. The alarm may be transmitted to a plurality of electronic blackboards 120 constituting the information processing system 100. Thereby, the same alarm can be notified to the other electronic blackboard 120 in the information processing system 100 other than the electronic blackboard 120 on which the image is drawn. The image data of the alarm screen transmitted to the electronic blackboard 120 may be stored in the storage unit 315 of the server 110, or may be stored in a storage area outside the server 110.

The electronic blackboard 120 that has received the alarm from the server 110 displays the alarm screen on the display 260 (process 3). As illustrated in FIG. 6, the electronic blackboard 120 displays evacuation information as an alarm screen.

As described with reference to FIGS. 5 and 6, according to the present embodiment, the connection mode of the access point 130 can be switched to the emergency mode and the electronic blackboard 120 can be switched to the emergency mode by drawing a predetermined image on the electronic blackboard 120. An alarm screen can be displayed on the screen.

According to the embodiment described so far, the connection mode can be switched by drawing a predetermined image on the electronic blackboard 120. Therefore, the information processing system 100 in the present embodiment can easily switch the connection mode of the access point 130. The connection mode may be switched by an operation other than drawing an image on the electronic blackboard 120, for example, inputting a predetermined word by voice, pulling a string, pressing a switch, applying vibration, or the like. The connection mode may be switched by the operation.

In the embodiments described so far, the server 110 mainly controls the electronic blackboard 120 and the access point 130. However, the embodiment is not particularly limited, and the information processing system 100 may be configured by an embodiment other than those described. For example, in another preferred embodiment, the configuration may be controlled by a device that employs SDN (Software Defined Network) technology. The SDN technology is a technology for dividing and controlling a network on a software basis, and there is a method using an OpenFlow protocol as a typical means for realizing SDN.

FIG. 7 is a diagram showing a schematic configuration of the hardware of the entire information processing system 100 in another embodiment. In another embodiment shown in FIG. 7, the information processing system 100 includes a server 110, an electronic blackboard 120, an access point 130, and further includes an SDN controller 150 and an SDN switch 160.

Similar to the server 110 shown in FIG. 1, the SDN controller 150 shown in FIG. 7 is a device that controls the connection mode of the access point 130 based on the result of analyzing the image drawn on the electronic blackboard 120. The SDN controller 150 switches the connection mode via the SDN switch 160. The SDN controller 150 can execute each process shown in the flowchart of FIG.

The SDN switch 160 is a device that switches the connection mode between the access point 130 and the information processing terminal 140 based on the request from the SDN controller 150 to switch the connection mode. The SDN switch 160 may be configured integrally with the access point 130.

The server 110 in another embodiment shown in FIG. 7 is configured as a file server for storing an image, and can store an image to be displayed on the electronic blackboard 120, for example. Examples of the image stored in the server 110 include image data of an alarm screen.

FIG. 8 is a software block diagram included in the information processing system 100 of another embodiment. Since the functional means of the electronic blackboard 120 is the same as the configuration shown in FIG. 3, details are omitted. Further, the description of what is common to the functional means shown in FIG. 3 will be omitted as appropriate.

The server 110 includes each module of the communication unit 311 and the storage unit 315. The communication unit 311 is a means for connecting to a network via the communication I / F 250 and communicating with other devices constituting the information processing system 100. The storage unit 315 is a means for storing an image to be displayed on the electronic blackboard 120 as display information.

The SDN controller 150 includes modules of a communication unit 351, an image analysis unit 352, an image determination unit 353, a mode switching request unit 354, and a storage unit 355. Since the software block of the SDN controller 150 is the same as the server 110 shown in FIG. 3, the description thereof will be omitted. The storage unit 355 can store the IP addresses of the server 110 and the electronic blackboard that make up the information processing system 100 in order to communicate with the server 110 and the electronic blackboard 120.

The SDN switch 160 includes each module of the communication unit 361 and the connection setting unit 362. Since the software block of the SDN switch 160 is the same as the access point 130 shown in FIG. 3, the description thereof will be omitted.

Also in the other embodiments shown in FIGS. 7 and 8, the information processing system 100 can perform the processes described in FIGS. 5 and 6. That is, in the information processing system 100 in another embodiment, the SDN controller 150 compares the drawn image and the trigger image, and if they match, the SDN controller 150 transmits a mode switching request to the SDN switch 160. .. Upon receiving the mode switching request, the SDN switch 160 switches the connection mode between the access point 130 and the information processing terminal 140. Further, when the SDN controller 150 receives the mode switching completion notification from the SDN switch 160, it acquires the image data of the display information from the server 110 and transmits it to the electronic blackboard 120.

As described above, also in other embodiments, the connection mode can be switched by drawing a predetermined image on the electronic blackboard 120. Therefore, the information processing system 100 in the other embodiment can easily switch the connection mode of the access point 130.

According to each embodiment of the present invention described above, it is possible to provide an information processing apparatus, an information processing system, a method and a program in which the connection mode of an access point can be easily switched.

Each function of each embodiment described above can be realized by one or more processing circuits. Here, the "processing circuit" as used herein is a processor programmed to perform each function by software, such as a processor implemented by an electronic circuit, or a processor designed to execute each function described above. It shall include devices such as ASIC (Application Specific Integrated Circuit), DSP (digital signal processor), FPGA (field programmable gate array) and conventional circuit modules.

The group of devices described in the examples is merely one of a plurality of computing environments for implementing the embodiments disclosed herein. In one embodiment, the server 110 includes a plurality of computing devices, such as a server cluster. The plurality of computing devices are configured to communicate with each other over any type of communication link, including networks, shared memory, and the like, and perform the processes disclosed herein.

Each function of each embodiment of the present invention described above can be realized by a device executable program described in C, C ++, C #, Java (registered trademark), etc., and the program of the present embodiment is a hard disk device, a CD. -It can be stored and distributed in device-readable recording media such as ROM, MO, DVD, flexible disk, EEPROM (registered trademark), and EPROM, and can be transmitted via a network in a format that other devices can. can.

Although the present invention has been described above with each embodiment, the present invention is not limited to each of the above-described embodiments, and the action and effect of the present invention can be achieved within the range of embodiments that can be inferred by those skilled in the art. As long as it works, it is included in the scope of the present invention.

100 ... Information processing system, 110 ... Server, 120 ... Electronic blackboard, 130 ... Access point, 140 ... Information processing terminal, 150 ... SDN controller, 160 ... SDN switch, 210 ... CPU, 220 ... RAM, 230 ... ROM, 240 ... Storage device, 250 ... Communication I / F, 260 ... Display, 311,351 ... Communication unit, 312,352 ... Image analysis unit, 313,353 ... Image determination unit, 314,354 ... Mode switching request unit, 315,355 ... Storage unit, 321 ... Communication unit, 322 ... Display unit, 323 ... Contact position detection unit, 331, 361 ... Communication unit, 332, 362 ... Connection setting unit

Japanese Patent No. 6056251

Claims (10)

An information processing device that controls the connection between a communication terminal and an access point.
An acquisition means for acquiring a drawn image drawn on a display device capable of drawing an image, and
An information processing apparatus including a requesting means for requesting switching of a mode for connecting the communication terminal and the access point when the drawn image acquired by the acquisition means matches a predetermined image. The information processing apparatus according to claim 1, wherein the requesting means requests a change in an authentication method for connecting from the communication terminal to the access point. The information processing apparatus according to claim 1 or 2, wherein the requesting means requests a change in the upper limit of the number of terminals that can be connected to the access point. One of claims 1 to 3, further comprising a transmission means for transmitting display information corresponding to the predetermined image to the display device when the drawn image acquired by the acquisition means matches the predetermined image. The information processing device described in the section. The information processing apparatus according to claim 4, wherein the display information is acquired from an external storage means that stores the display information corresponding to the predetermined image. An information processing device that controls the connection between a communication terminal and an access point.
An acquisition means for acquiring a drawn image drawn on a display device capable of drawing an image, and
An information processing system including a requesting means for requesting switching of a mode for connecting the communication terminal and the access point when the drawn image acquired by the acquisition means matches a predetermined image. The information processing system according to claim 6, further comprising a transmission means for transmitting display information corresponding to the predetermined image to the display device when the drawn image acquired by the acquisition means matches the predetermined image. .. The information processing system according to claim 7, wherein the display device displays the display information when the display information is received from the transmission means. It is a method of controlling the connection between the communication terminal and the access point.
A step to acquire a drawn image drawn on a display device capable of drawing an image, and
A method comprising the step of requesting switching of a mode for connecting the communication terminal and the access point when the drawn image acquired in the acquisition step matches a predetermined image. A program executed by an information processing device that controls the connection between a communication terminal and an access point, and is an acquisition means for acquiring a drawn image drawn on a display device capable of drawing an image of the information processing device.
A program that functions as a requesting means for requesting switching of a mode for connecting the communication terminal and the access point when the drawn image acquired by the acquisition means matches a predetermined image.

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