JP5201745B2 - Display change system and display change program - Google Patents

Description

  The present invention relates to image display using a display device, and more particularly to a technique for automatically changing and displaying an image magnification.

  In general, when giving a presentation such as a lesson or a lecture, a method is used in which an explanation is given using a magnified image displayed on a display device such as a monitor or a projector so that the lecturer can easily explain to the audience. However, if the magnification set by the speaker is not appropriate for an enlarged image, there is a problem that the presentation becomes difficult to understand for the audience. For example, if the set magnification is too small or too large, people who cannot recognize the detailed characters and display displayed on the display device or who cannot grasp the entire image displayed from the audience It is a problem that a lot appears.

As means for solving the above problem, in the field of computer terminals, there is a technique of changing an enlarged display format according to the type of text displayed on a display device. In this technique, a means is used for determining whether the type of text displayed on the display device is vertical writing or horizontal writing, and expanding in only one direction according to the result. Specifically, when the type of sentence is vertical writing, it is enlarged only in the horizontal direction, and when it is horizontal writing, means for enlarging only in the vertical direction is used. Thereby, according to the kind of the text displayed, it can be automatically enlarged and displayed in a format in which the viewer can easily grasp the entire image of the text. (See Patent Document 1)

JP 2002-215281 (Page 5-7, FIGS. 2, 4)

  If the technique of patent document 1 is used, according to the content of the displayed image called the kind of sentence which a display apparatus displays, an expansion format can be set automatically. However, it cannot be determined whether or not the image is enlarged and displayed at a magnification that is easy for the viewer to see. For this reason, when this technology is used when giving a presentation, the magnification must be manually adjusted appropriately according to the surrounding conditions such as the number of image viewers and the locations where the images are being viewed. There is a problem that a new burden arises for the user.

  An object of the present invention is to solve the above-mentioned problems of the prior art. Specifically, when an image is enlarged and displayed using a display device, a system that reduces the burden on a user who makes a presentation by automatically determining an enlargement magnification according to the surrounding situation where the image is viewed It is an issue to provide.

In order to solve the above problem, the display change system of the present invention is configured to have an instruction terminal that displays a predetermined area of an image in an enlarged manner using a display device when a lesson is performed. An image information acquisition unit for acquiring image information of a region, an enlargement instruction information acquisition unit for acquiring enlargement instruction information for instructing enlargement of an image, and curriculum information of a class being conducted at the time of acquisition of the enlargement instruction information comprising a curriculum information acquiring unit, and determines the magnification determining section enlargement magnification of the image information based on curriculum information, and a display control unit for displaying on the display device to enlarge information based on magnification, the The curriculum information acquisition unit acquires information including at least one of the content of the lesson, the place of implementation, the number of participants, and the organization of the course as curriculum information .

By configuring as in the present invention, it is possible to grasp the date and time when an instruction to enlarge an image is issued by the instruction terminal. Furthermore, it is possible to determine under what circumstances the image is viewed by acquiring curriculum information related to the class being conducted at that date and time. By determining the magnification based on this determination result, it is possible to display an enlarged image according to the surrounding situation.

  The lesson in the present invention refers to a concept including not only a lesson in school but also a presentation given by a speaker to an audience. Specific examples include lectures at universities, other lectures, and reporting meetings held within companies and specific groups.

  The display device in the present invention refers to a device that displays a designated image on a screen, a screen, or the like. Specifically, a display or a projector can be considered as an example.

  The predetermined area in the present invention refers to a portion of the image that requires enlargement, and may be the entire image or a range designated by the instruction terminal.

  The curriculum information in the present invention refers to information indicating the content and plan of the lesson. Specifically, the content of the lesson, the place of implementation, the date and time of implementation, the implementer, the number of participants, and information on the organization receiving the class can be considered as examples.

The display change system of the present invention also includes an instruction terminal that enlarges and displays a predetermined area of an image using a display device when a lesson is performed, a subordinate terminal used by a participant participating in the lesson, and a management server Are connected to each other via a network. The management server includes an image information acquisition unit that acquires image information of a predetermined area, and an enlargement instruction that acquires enlargement instruction information that instructs image enlargement. Based on the curriculum information, an information acquisition unit, a terminal information acquisition unit that acquires information about subordinate terminals at the time of acquisition of expansion instruction information, a curriculum information acquisition unit that acquires curriculum information of a lesson generated based on the terminal information, comprising a determining factor determination unit magnification of the image information, a display control unit for displaying on the display device to enlarge information based on magnification, the Te, the Curriculum information acquisition unit, the contents of the lesson as the curriculum information, implementation location, course number, and it may be configured that you get one information including one or more participants tissue.

  With the configuration according to the present invention, curriculum information can be generated using information of a terminal connected to the network at the time when an image enlargement instruction is issued. Accordingly, it is possible to perform an enlarged display at an optimum magnification at that time according to the surrounding situation that changes every moment.

Since the curriculum information acquisition unit in the display change system of the present invention can acquire and use various information related to the lesson as curriculum information, it is possible to determine the magnification corresponding to various information as the surrounding situation It becomes.

It is also possible to realize the above-described present invention by reading the program of the present invention into a terminal and executing it. That is, in a display change system having an instruction terminal for enlarging and displaying a predetermined area of an image using a display device when a class is carried out, an image information acquisition function for acquiring image information of the predetermined area, and an image enlargement The enlargement instruction information acquisition function for acquiring the enlargement instruction information to be instructed, the curriculum information acquisition function for acquiring the curriculum information of the class conducted at the time of acquisition of the enlargement instruction information, and the enlargement magnification of the image information based on the curriculum information A magnification determination function for determining, and a display control function for enlarging the image information based on the enlargement magnification and displaying it on a display device. The curriculum information acquisition function includes the content of the lesson, the place of execution, and the attendance as curriculum information. number, and display change can be realized on a computer to obtain any information including one or more participants tissue program It may be configured as.

  This display change program also has the same operation and effect as the above-described display change system, and can also have various characteristic configurations described above.

Also, the above-described present invention can be realized by configuring the program of the present invention as follows, reading it into a terminal and executing it. In other words, an instruction terminal that enlarges and displays a predetermined area of an image using a display device when a lesson is performed, a subordinate terminal used by a participant participating in the lesson, and a management server are connected to the network. In an enlargement display system, an image information acquisition function for acquiring image information of a predetermined area, an enlargement instruction information acquisition function for acquiring enlargement instruction information for instructing enlargement of an image, and connection to a network at the time of acquisition of the enlargement instruction information A terminal information acquisition function for acquiring information relating to a terminal being present, a curriculum information acquisition function for acquiring curriculum information of a lesson generated based on the terminal information, and a magnification determination function for determining an image enlargement magnification based on the curriculum information; has a display control function of displaying on the display device to enlarge information based on magnification, the curriculum information The resulting function, the contents of teaching as curriculum information, implementation location, course number, and may be configured as a display change program for realizing the management server to acquire any information including one or more participants tissue.

  This display change program also has the same operation and effect as the above-described display change system, and can also have various characteristic configurations described above.

  According to the present invention configured as described above, when an image is enlarged and displayed using a display device, the image is enlarged and displayed at a magnification according to the surrounding situation at the date and time when the enlargement instruction is issued from the instruction terminal. can do. Thereby, the effect that the burden of the user who teaches can be reduced is acquired.

The conceptual diagram which shows an example of the system configuration | structure in Example 1 of this invention. The conceptual diagram which shows an example of the hardware constitutions of the management server of this invention. The functional block diagram which shows an example of the system configuration | structure in Example 1 of this invention. The flowchart which shows an example of the process in Example 1 of this invention. The figure which shows an example of the expansion instruction information of this invention. The figure which shows an example of the image information of this invention. The figure which shows an example of the information memorize | stored in the curriculum information storage part 14 of this invention. The figure which shows an example of the information memorize | stored in the determination table 16 of this invention. The figure which shows an example of the display control information of this invention. The image figure which shows an example of the image displayed with the enlarged display apparatus C of this invention. The conceptual diagram which shows an example of the system configuration | structure in Example 2 of this invention. The functional block diagram which shows an example of the system configuration | structure in Example 2 of this invention. The conceptual diagram which shows an example of the system configuration | structure in Example 3 of this invention. The functional block diagram which shows an example of the system configuration | structure in Example 3 of this invention. The flowchart which shows an example of the process in Example 3 of this invention. The figure which shows an example of the terminal information of this invention. The figure which shows an example of the information memorize | stored in the terminal information storage part 18b of this invention. The figure which shows an example of the information memorize | stored in the curriculum information storage part 14 of this invention. The conceptual diagram which shows an example of the system configuration | structure in Example 4 of this invention. The functional block diagram which shows an example of the system configuration | structure in Example 4 of this invention.

Example 1 Configuration
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 conceptually shows an example of the overall configuration of the display change system of the present invention. In the present invention, as shown in FIG. 1, an information management server A (hereinafter referred to as “management server A”) has an instruction terminal B (hereinafter referred to as “terminal B”) and an enlarged display device C (hereinafter referred to as “enlargement”). Display device C ”) and a communication network N (hereinafter referred to as“ network N ”).

  Network N is a CSMA / CD (Carrier Sense Multiple Access Collision Detection) system equipped with a cable that physically transmits information in a limited facility such as a company or school, and a relay device such as a LAN switch or hub. Although it is configured as an Ethernet (registered trademark) type LAN, the network N is constructed by an intranet using the Internet technology in addition to the Ethernet type LAN, or a WAN (Wide Area Network) technology. It may be constructed by.

  FIG. 2 conceptually shows an example of the hardware configuration of the management server A or the terminal B.

  The management server A includes an arithmetic device 1 such as a CPU that executes arithmetic processing of a program, a storage device 2 such as a RAM and a hard disk for storing information, processing results of the arithmetic device 1 and information stored in the storage device 2 on the Internet. And at least a communication device 3 that transmits and receives via a network such as a LAN. Each function (each unit) realized on the terminal is executed when a unit (program, module, or the like) that executes the process is read into the arithmetic unit 1. When using the information stored in the storage device 2 in the processing, each function reads the corresponding information from the storage device 2 and uses the read information in the processing in the arithmetic device 1 as appropriate.

  The management server A may include an input device 4 such as a keyboard, a mouse, or a numeric keypad and a display device 5 such as a display (screen) as necessary. The “display device 5” here is a display (screen) that is directly connected to the management server A or integrated with the management server A in terms of hardware configuration. Is different. In addition, the management server A may have its functions distributed to a plurality of terminals or servers.

The hardware configuration of the terminal B is almost the same as that of the management server A, and includes a computing device 1, a storage device 2, a communication device 3, an input device 4, and a display device 5, as shown in FIG.

  FIG. 3 shows a functional block diagram of the management server A, terminal B, and enlarged display device C constituting the display change system of the present invention. Each component and each means in the present invention are only logically distinguished in function, and may be physically or virtually identical.

  FIG. 3 shows only the minimum equipment, components, means and the like necessary in the present invention, and the description of the other devices, components, means, etc. is omitted.

  The management server A acquires a network I / F 10 for transmitting / receiving various information to / from the terminal B and the enlarged display device C via the network N, and enlargement instruction information indicating an enlargement display instruction output from the terminal B. The instruction information acquisition unit 11, the image information acquisition unit 12 that acquires image information of an area to be enlarged among the images displayed on the display device 5 of the terminal B, and the time when the enlargement instruction information is acquired are implemented. Curriculum information acquisition unit 13 for acquiring the curriculum information of the lesson, curriculum information storage unit 14 for storing the curriculum information about the lesson, a magnification determination unit 15 for determining a magnification for enlarging an image using the acquired curriculum information, a magnification Determination table 16 that stores information used as a reference for determination, and displays an enlarged image acquired based on the determined magnification And a display control unit 17 to be transmitted to enlarge the display device C generates the display control information of the order.

  The terminal B is executed in the network I / F 20 for transmitting and receiving various information to and from the management server A and the enlarged display device C via the network N, the terminal control unit 21 that executes various operations in the terminal B, and the terminal B. An enlargement instruction information generation unit 22 that generates enlargement instruction information related to an enlargement instruction and transmits the enlargement instruction information to the management server A, and generates image information related to an area designated as an enlargement display target among images displayed on the display device 5 of the terminal B The image information generating unit 23 for transmitting to the management server A, the input device 4 for inputting information to the terminal B, and the display device 5 for displaying information instructed by the terminal control unit 21 are provided.

  The enlarged display device C includes a network I / F 30 for transmitting and receiving various information to and from the management server A and the terminal B via the network N, and a display control information receiving unit 31 that receives display control information output from the management server A. A display device control unit 32 that executes various operations of the enlarged display device C, and an image display unit 33 that displays an image in response to an instruction from the display device control unit 32 are provided. The enlarged display device C here refers to a device that enlarges and displays a designated image on a screen or a screen. Specifically, a display or a projector can be considered as an example. Further, the terminal itself provided with the display device may serve as the enlargement device C.

The operation of each component will be described below based on the functional block diagram constituting the present invention shown in FIG.

  The enlargement instruction information generation unit 22 acquires from the terminal control unit 21 that the user of the terminal B has given an enlargement instruction using the input device 4, and generates enlargement instruction information. Furthermore, the generated enlargement instruction information is transmitted to the management server A via the network I / F 20.

  The above-described enlargement instruction information is information indicating when an operation instruction for performing enlargement display on the image displayed on the display device 5 of the terminal B is output. The terminal identification information that can uniquely identify the performed terminal B, the user identification information that can uniquely identify the user (login user) who operates the terminal B, and the date and time when the enlargement instruction was issued The information includes at least one of date / time information to be displayed and coordinate information indicating the center position of the image to be enlarged.

  The coordinate information refers to information indicating which position in the image to be enlarged is to be enlarged. In this case, it is preferable that the position of the mouse cursor displayed in the display device 5 when the enlargement instruction information is generated is the coordinate information. Alternatively, the user may separately designate a coordinate position, and the designated coordinate position may be used as coordinate information.

  The image information generation unit 23 acquires, from the terminal control unit 21, information related to an image displayed in an area designated as an enlargement instruction target by the user from among the images displayed on the display device 5 of the terminal B. Is generated. Further, the generated image information is transmitted to the management server A via the network I / F 20.

  The image information is information indicating the image data displayed in the area designated by the user of the terminal B and the time when the area designation is performed. The terminal B that has designated the area is uniquely defined. Terminal identification information that can be uniquely identified, user identification information that can uniquely identify a user (logged-in user) who operates terminal B, date and time information that indicates the date and time when the area designation was performed, and designation That includes at least image data displayed in the displayed area.

  The area specified by the user may be the entire display area in the display device 5 of the terminal B, or may be a display area within a range arbitrarily surrounded by a rectangle by the user.

  The expansion instruction information acquisition unit 11 acquires the expansion instruction information of the terminal B connected to the network N via the network I / F 10 and transmits the acquired expansion instruction information to the curriculum information acquisition unit 13.

  The image information acquisition unit 12 acquires the image information of the terminal B connected to the network N via the network I / F 10 and transmits the acquired image information to the display control unit 17.

  The curriculum information acquisition unit 13 is based on the expansion instruction information acquired from the expansion instruction information acquisition unit 11 and the time when the expansion instruction information is issued from the curriculum information stored in the curriculum information storage unit 14 (enlargement instruction) The curriculum information corresponding to the class conducted by the terminal B at the time) is extracted and acquired. Then, the curriculum information acquisition unit 13 transmits the acquired curriculum information and enlargement instruction information together to the magnification determination unit 15.

  The curriculum information storage unit 14 stores curriculum information related to each class conducted using the terminal B. The storage format at that time may be stored in a form that is associated with each date / time information using date / time information indicating the date and time of the class included in the curriculum information, or user identification information or a terminal indicating the class implementer A format in which the identification information is used in association with each other may be used. Moreover, it is good also as a form which links | relates and preserve | saves in the form using the information of both the implementation date and lesson of a lesson.

  The curriculum information in the above refers to information indicating the implementation contents and plans related to the classes being conducted. Specifically, a variety of information related to the class, such as the content of the class, the location of the class, the date and time of the implementation, the implementer, the number of participants, or information about the organization attending the class, is defined as curriculum information. .

  The magnification determination unit 15 determines the magnification of the image based on the curriculum information acquired from the curriculum information acquisition unit 13. At that time, the magnification determination unit 15 refers to information used as a criterion for magnification determination stored in the determination table 16 to determine an enlargement magnification. Then, the determined enlargement magnification and enlargement instruction information are transmitted together to the display control unit 17.

  In the determination table 16, information in which predetermined information included in the curriculum information is associated with a magnification is stored in advance. The predetermined information included in the curriculum information associated with the magnification may be any information such as the content of the lesson, the location of the lesson, the date and time of the lesson, the implementer, the number of participants, and information on the organization receiving the lesson. Absent.

  The display control unit 17 acquires image information from the image information acquisition unit 12 and further acquires an enlargement magnification from the magnification determination unit 15. Then, the acquired image information is enlarged according to the acquired enlargement magnification and the resolution of the enlargement display device C (the angle of view size of the enlargement display device C) with the coordinate information included in the enlargement instruction information as the center. Data is generated, display control information including the enlarged image data is generated, and transmitted to the enlarged display device C via the network I / F 10.

  The display control information receiving unit 31 receives the display control information output from the display control unit 17 via the network I / F 30 and transmits it to the display device control unit 32.

  The display device control unit 32 causes the image display unit 33 to display the image data included in the display control information based on the display control information acquired from the display control information receiving unit 31.

  About the above-mentioned process, the display control part 17 of the management server A is good also as a structure which transmits the produced | generated display control information with respect to the terminal B via network I / F10. In this case, the terminal control unit 21 of the terminal B receives the display control information via the network I / F 20, and converts the image data included in the received display control information based on the enlargement magnification included in the display control information. A process of enlarging and displaying on the display device 5 of the terminal B is performed.

  By performing the above processing, the user of the terminal B can view the same image as the image enlarged and displayed by the enlarged display device C on the display device 5 of the terminal B.

Example 1 Treatment Process
Next, an example of a processing process in the display change system of the present invention will be described with reference to the functional block diagram of FIG. 3, the flowchart of FIG. In the following description, a case where the present system is used in a class at a junior high school will be described as an example. Further, a case where the number of students taking a class is used as curriculum information for determining an enlargement magnification will be described as an example.

  When the enlargement instruction information generation unit 22 of the terminal B detects that the enlargement instruction operation has been performed from the information of the terminal control unit 21, the enlargement instruction information is generated based on the contents, and the generated enlargement instruction information is transmitted to the network I. / F20 to the management server A. An example of the generated enlargement instruction information is shown in FIG.

  The above will be specifically described by taking as an example the case where the enlargement instruction information is generated as shown in FIG. The enlargement instruction information includes four pieces of information: date information, terminal identification information, user identification information, and coordinate information. In FIG. 5, the terminal “A001” is assigned to the date “2010/2/5 10:45”. This indicates that the user “TC012” to use has designated an image displayed on the display device 5 and has given an enlargement instruction.

  The image information generation unit 23 of the terminal B acquires information related to the image displayed in the area designated as the enlargement instruction target by the user from the information of the terminal control unit 21 to generate image information, and the generated image Information is transmitted to the management server A via the network I / F 20. An example of the generated image information is shown in FIG.

  The above will be specifically described by taking as an example the case where the image information is generated as shown in FIG. The image information includes four pieces of information: date information, terminal identification information, user identification information, and image data. In FIG. 6, the terminal “A001” is used for the date “2010/2/5 10:45”. This shows that the user “TC012” who has performed the designation of the image (image shown in the image data) displayed in the designated area of the display device 5 has given an enlargement instruction. In the present embodiment, the designated area is the entire range displayed on the display device 5.

  The expansion instruction information acquisition unit 11 of the management server A acquires the expansion instruction information transmitted from the terminal B via the network I / F 10 (S101). Further, the acquired enlargement instruction information is transmitted to the curriculum information acquisition unit 13.

  The image information acquisition unit 12 of the management server A acquires the image information transmitted from the terminal B via the network I / F 10 (S102). Further, the acquired image information is transmitted to the display control unit 17.

  The curriculum information acquisition unit 13 searches the curriculum information storage unit 14 based on the expansion instruction information acquired from the expansion instruction information acquisition unit 11, and extracts and acquires curriculum information related to the class currently being conducted at the terminal B. (S103). Then, the acquired curriculum information and enlargement instruction information are combined and transmitted to the magnification determination unit 15.

  The curriculum information storage unit 14 will be specifically described. In the curriculum information storage unit 14, various types of information related to classes are stored for each system. In this example, information on lessons conducted at junior high school is stored, so subject information as class contents, timetable information as implementation date information, classroom information as implementation location, class number as attendance, class information as attendance organization , Etc. are stored in association with each other. An example of information stored in the curriculum information storage unit 14 is shown in FIG.

  The above will be specifically described by taking as an example the case where the curriculum information is stored as shown in FIG. Curriculum information is stored by system based on date / time information, and includes seven types of information: date / time information (date information / time zone information), class information, class size, subject information, teacher information, and classroom information. Yes. Introducing an example of the stored information, in the time zone “9: 00-10: 50 (first hour)” of the date “2010/2/5”, the class information “1-A” and the class number “25” It is stored that a person takes a class with subject information “Science” in the classroom “Science Room” from the teacher “TC104”. Furthermore, information such as the age and age group of the student may be included and stored. These pieces of information do not necessarily have to be included, but need only include information necessary for the operation of the system.

  Next, the processing in the curriculum information acquisition unit 13 will be specifically described. When the expansion instruction information acquired from the expansion instruction information acquisition unit 11 is as shown in FIG. 5 and the curriculum information stored in the curriculum information storage unit 14 is as shown in FIG. 7, the curriculum information acquisition unit 13 Using the date information “2010/2/5 10:45” and the user identification information “TC105” included in the instruction information, the curriculum information storage unit 14 is searched, and information on the currently conducted lesson is used as curriculum information. Extract and get. As a result, class information “1-A”, class number “25”, subject information “society”, and classroom information “audiovisual room” are acquired as curriculum information currently being implemented. Then, the curriculum information acquisition unit 13 transmits the acquired curriculum information to the magnification determination unit 15.

  The magnification determination unit 15 determines the enlargement magnification based on the curriculum information acquired from the curriculum information 13 and the information used as a reference for magnification determination stored in the determination table 16 (S104). Then, the determined enlargement magnification and enlargement instruction information are transmitted together to the display control unit 17.

  The determination table 16 will be specifically described. In the determination table 16, information used as a reference for magnification determination, in which predetermined information included in the curriculum information is associated with a magnification, is determined and stored in advance. An example of information stored in the determination table 16 is shown in FIG.

  The above will be specifically described by taking as an example a case where the information stored in the determination table 16 is as shown in FIG. In the determination table, for each predetermined information included in the curriculum information, the contents and the magnification are set in association with each other. In FIG. 8, the relationship between the three contents of the number of persons, the subject information, and the classroom information and the magnification is set. The information stored in the determination table 16 is not limited to these. For example, class information (school grade information), teacher information (user identification information), age and age group contents and magnification may be set and stored. good. Further, a relationship between a combination of two or more pieces of information included in the curriculum information and the magnification may be set.

  Next, the process in the magnification determination unit 15 will be specifically described. In the present embodiment, the enlargement magnification is determined using the class number “25” among various information included in the curriculum information acquired from the curriculum information acquisition unit 13. The magnification information determination unit 15 uses the information stored in the determination table 16 to determine the enlargement magnification corresponding to the class number “25”. As a result, the magnification is determined to be “6 times”. Then, the determined enlargement magnification and enlargement instruction information are transmitted together to the display control unit 17.

  The display control unit 17 generates display control information using the image information acquired from the image information acquisition unit 12 and the enlargement magnification and enlargement instruction information acquired from the magnification determination unit 15 (S105). Then, the generated display control information is transmitted to the enlarged display device C via the network I / F 10.

  The processing in the display control unit 17 will be specifically described. When the image information acquired from the image information 12 is as shown in FIG. 6 and the enlargement magnification acquired from the magnification determination unit 15 is “6 times”, the display control unit 17 displays the coordinate information included in the enlargement instruction information. As a center, image data obtained by enlarging the image data included in the image information by six times is generated, and display control information including the image data obtained by dividing the image data is generated. An example of the generated display control information is shown in FIG.

  The display control information receiving unit 31 receives the display control information output from the display control unit 17 via the network I / F 30 and transmits it to the display device control unit 32.

  The display device control unit 32 displays the image data on the image display unit 33 based on the display control information acquired from the display control information receiving unit (S106). An example of an image displayed by the image display unit 33 is shown in FIG.

  By adopting the above-mentioned embodiment, the number of students ("students" in this example) of the class being conducted at the time when the user performing the class ("teacher" in this example) gives an enlargement instruction Accordingly, enlargement at an appropriate magnification can be easily performed. Thereby, the burden of the user who performs a lesson can be reduced.

  In addition, in the above-described embodiment, various information can be obtained by setting predetermined information included in the curriculum information used when determining the enlargement magnification to information other than the number of students (“number of classes” in this embodiment). Therefore, it is possible to determine an enlargement magnification according to the surrounding situation, and it is possible to perform enlargement display at the determined magnification.

Example 2 Configuration
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 11 conceptually shows an example of the overall configuration of the display change system of the present invention. As shown in FIG. 11, the present invention is configured such that the terminal B and the enlarged display device C are connected directly or via a communication network N (hereinafter referred to as “network N”). The connection format between the terminal B and the enlarged display device C may be either a direct connection or a connection via the network N.

  Next, a second embodiment of the display change system of the present invention will be described using the functional block diagram of FIG. In addition, the same code | symbol is attached | subjected to the same component as Example 1, and when performing the same operation | movement as Example 1, the detailed description is abbreviate | omitted.

  The second embodiment of the display change system of the present invention has a curriculum information acquisition unit 13, a curriculum information storage unit 14, a magnification determination unit 15, a determination table 16, and a display control unit 17 inside the terminal B, and The terminal B and the enlarged display device C are different from the embodiment of Example 1 in that they are connected via the connection I / F 40 and the connection I / F 50.

  The present embodiment is characterized in that the present invention can be realized by only the terminal B and the enlarged display device C without providing the management server A as in the first embodiment.

  Hereinafter, the operation of each component will be described. Detailed descriptions of the same components or operations as those in the first embodiment are omitted.

  The enlargement instruction information generation unit 22 acquires from the terminal control unit 21 that the user of the terminal B has given an enlargement instruction using the input device 4, and generates enlargement instruction information. Further, the generated enlargement instruction information is transmitted to the curriculum information acquisition unit 14.

  The image information generation unit 23 acquires, from the terminal control unit 21, information related to an image displayed in an area designated as an enlargement instruction target by the user from among the images displayed on the display device 5 of the terminal B. Is generated. Further, the generated image information is transmitted to the display control unit 17.

  The curriculum information acquisition unit 13 is based on the expansion instruction information acquired from the expansion instruction information generation unit 11, and the date and time information included in the expansion instruction information from the curriculum information stored in the curriculum information storage unit 14. Based on the terminal identification information, the curriculum information corresponding to the class conducted by the terminal B at the time when the expansion instruction information is issued is extracted and acquired. Then, the curriculum information acquisition unit 13 transmits the acquired curriculum information to the magnification determination unit 15.

  The display control unit 17 acquires image information from the image information generation unit 12 and further acquires an enlargement magnification from the magnification determination unit 15. Then, display control information that associates the acquired image information with the enlargement magnification is generated and transmitted to the enlargement display apparatus C via the connection I / F 10.

  The display control information receiving unit 31 receives the display control information output from the display control unit 17 via the connection I / F 30 and transmits it to the display device control unit 32.

  By configuring as described above, even when the management server A is not provided, the present invention can be implemented only by the terminal B and the enlarged display device C. Thereby, the work and cost relating to the system configuration of the present invention can be reduced.

Example 3 Configuration
Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 13 conceptually shows an example of the overall configuration of the display change system of the present invention. In the present invention, as shown in FIG. 13, a management server A, a terminal B, an enlarged display device C, and a plurality of client terminals D (hereinafter referred to as “subordinate terminals D”) are connected to a communication network N (hereinafter referred to as “network N”). It is configured in the form of being connected via

  The hardware configuration of the subordinate terminal D is almost the same as that of the management server A and the terminal B, and includes the arithmetic device 1, the storage device 2, the communication device 3, the input device 4, and the display device 5, as shown in FIG. Yes.

  Next, a third embodiment of the display change system of the present invention will be described using the functional block diagram of FIG. In addition, the same code | symbol is attached | subjected to the same component as Example 1, and when performing the same operation | movement as Example 1, the detailed description is abbreviate | omitted.

  In the third embodiment of the display change system of the present invention, a terminal information acquisition unit 18a that acquires information related to subordinate terminals connected to the network N, and terminal information that stores the acquired terminal information are stored inside the management server A. The present embodiment is different from the first embodiment in that it includes a storage unit 18b and a curriculum information generation unit 19 that generates curriculum information from the stored terminal information.

  Further, the dependent terminal D includes a network I / F 60 for transmitting and receiving various information to and from the management server A and the enlarged display device C via the network N, and a dependent terminal control unit that executes various operations in the dependent terminal D. 61, a terminal information generation unit 62 that generates information about the dependent terminal, an input device 4 that inputs information to the dependent terminal D, and a display device 5 that displays information instructed by the dependent terminal control unit 21. .

  In the present embodiment, as in the first embodiment and the second embodiment, instead of determining the enlargement magnification based on pre-stored curriculum information, information on subordinate terminals connected to the network is acquired and the information is obtained. It is characterized in that curriculum information is created using, and magnification is determined.

  Hereinafter, the operation of each component will be described. Detailed descriptions of the same components or operations as those in the first embodiment are omitted.

  The terminal information generation unit 62 of the dependent terminal D acquires information that the user uses the dependent terminal D connected to the network from the dependent terminal control unit 61, and generates terminal information. Further, the generated terminal information is transmitted to the management server A via the network I / F 60.

  The above terminal information refers to information indicating whether or not the subordinate terminal D connected to the network N is being used by the user. Specifically, information indicating whether or not the slave terminal D is powered on, information indicating that the user has logged into the network N via the slave terminal D (user identification information), and connection to the network N Terminal identification information that can uniquely indicate the subordinate terminal D is considered as terminal information. Further, operation log information indicating the content of the operation performed in the subordinate terminal D may be generated and transmitted to the management server A as terminal information.

  The terminal information acquisition unit 18a acquires the terminal information of the subordinate terminal D connected to the network N via the network I / F 10, and stores the acquired terminal information in the terminal information storage unit 18b. The terminal information acquisition unit 18a updates the content stored in the terminal information storage unit 18b each time new terminal information is acquired.

  The curriculum information generation unit 19 uses the terminal information stored in the terminal information storage unit 18b to generate curriculum information corresponding to the lesson conducted by the terminal B when the enlargement instruction information is issued. Specifically, information on the number of participants participating in the class conducted at the time when the expansion instruction information was issued, information on the attending organization receiving the class, and the like is generated. The generated curriculum information is stored in the curriculum information storage unit 14.

  A method for generating the curriculum information will be specifically described. For example, when calculating the number of participants participating in the current class as curriculum information, the power source information of the subordinate terminal D connected to the network is acquired, and the terminal is in the power ON state. There is a method of calculating the number of participants participating in the class by counting how many are there. In addition, a method of calculating the number of participants participating in the class by acquiring login information of the subordinate terminal D connected to the network and counting the number of login users is also conceivable. In addition, when determining the attending organization that is attending the current class, the user identification information included in the login information of the subordinate terminal D connected to the network and the user identification information included in the operation log information Can be considered, by identifying the organization to which the acquired user belongs using a user information database (not shown). The user information database stores user identification information and user attribute information (for example, grade, class, gender, visual acuity, academic ability, etc.) in association with each other.

  The curriculum information storage unit 14 stores the curriculum information generated by the curriculum information generation unit 19. The storage format is stored in association with the date and time information, and when the curriculum information generated by the curriculum information generation unit 19 is newly received, the content of the stored information is updated. Is preferred.

  The curriculum information acquisition unit 13 outputs the expansion instruction information from the curriculum information storage unit 14 based on the date / time information included in the expansion instruction information based on the expansion instruction information acquired from the expansion instruction information acquisition unit 11. The curriculum information corresponding to the lesson conducted by the terminal B at the time point is extracted and acquired. Then, the curriculum information acquisition unit 13 transmits the acquired curriculum information to the magnification determination unit 15.

Example 3 Treatment Process
Next, an example of a processing process in the display change system of the present embodiment will be described with reference to the functional block diagram of FIG. 14, the flowchart of FIG. In the following explanation, a case where the present system is used in a class at a junior high school will be described. Further, a case will be described as an example where the number of students taking a class is used as the curriculum information for determining the magnification.

  The operations from (S303) to (S304) and (S307) to (S308) in the flowchart of FIG. 15 are the same as those in [Example 1-Processing process], and thus the description thereof is omitted.

  When the attribute information generation unit 62 of the subordinate terminal D detects from the information of the subordinate terminal control unit 61 that a login operation to the network N has been performed, the attribute information generation unit 62 generates terminal information based on the content, and generates the generated terminal information. The data is transmitted to the management server A via the network I / F 60. An example of the generated terminal information is shown in FIG.

  The above will be specifically described by taking the case where the terminal information is generated as shown in FIG. 16 as an example. The terminal information includes three pieces of information: date information, operation details, terminal identification information, and user identification information. In FIG. 16, the user “1A015” is assigned to the terminal at the date “2010/2/5 10:30”. This indicates that the user has logged in to the network N using “B004”.

  The terminal information acquisition unit 18a of the management server A acquires the terminal information transmitted from the subordinate terminal D via the network I / F 10. Further, the acquired terminal information is stored in the terminal information storage unit 18b (S301). An example of information stored in the terminal information storage unit 18b is shown in FIG.

  The above will be specifically described with reference to an example in which terminal information is stored as shown in FIG. The terminal information is stored in association with the order of date and time information, and includes four pieces of information: date and time information, operation details, terminal identification information, and user identification information. These pieces of information do not necessarily have to be included, but need only include information necessary for the operation of the system. The information stored in the terminal information storage unit 18b is updated each time new terminal information is output in the terminal information acquisition unit 18a, and thus information indicating which subordinate terminal is currently performing a login operation to the network N. Can be grasped.

  The curriculum information generation unit 19 analyzes the terminal information stored in the terminal information storage unit 18b, and generates curriculum information related to the class being conducted at the current time. The generated curriculum information is stored in the curriculum information storage unit 14 as needed (S302). An example of information stored in the curriculum information storage unit 14 is shown in FIG.

  The above will be specifically described with reference to an example in which terminal information is stored as shown in FIG. The curriculum information generation unit 19 calculates the number of terminals in the login state among the terminal information stored in the terminal information storage unit 18b. When the current date and time is “2010/2/5 10:35”, the number of terminals in the login state is calculated as “19”. Then, it is determined that the number of terminals in the login state is the number of students currently participating in the class. Then, the curriculum information is generated by combining the current date and time information and the number of terminals in the login state, and stored in the curriculum information storage unit 14.

  The curriculum information acquisition unit 13 acquires curriculum information related to the class currently being conducted at the terminal B from the curriculum information storage unit 14 based on the expansion instruction information acquired from the expansion instruction information acquisition unit 11 (S305). Then, the acquired curriculum information is transmitted to the magnification determination unit 15.

  The case where the enlargement instruction information acquired from the enlargement instruction information acquisition unit 11 is as shown in FIG. 5 will be specifically described. The curriculum information acquisition unit 13 searches the curriculum information storage unit 14 using the date and time information “2010/2/5 10:45” included in the enlargement instruction information, and obtains information on the currently conducted class as the curriculum information. Extract and get as. As a result, information of the number of login terminals (number of students) “19” is acquired as curriculum information currently being implemented. Then, the curriculum information acquisition unit 13 transmits the acquired curriculum information to the magnification determination unit 15.

  The magnification determination unit 15 determines the enlargement magnification based on the curriculum information acquired from the curriculum information 13 and the information used as a reference for magnification determination stored in the determination table 16 (S306). Then, the determined magnification is transmitted to the display control unit 17.

  The above will be specifically described by taking as an example a case where the information stored in the determination table 16 is as shown in FIG. The magnification determination unit 15 determines the enlargement magnification using the number of login terminals (number of students) “19”. The magnification information determination unit 15 uses the information stored in the determination table 16 to determine the enlargement magnification corresponding to the number of people “19”. As a result, the magnification is determined to be “5 times”. Then, the determined magnification is transmitted to the display control unit 17.

  By adopting the above-mentioned embodiment, the number of students ("students" in this example) of the class being conducted at the time when the user performing the class ("teacher" in this example) gives an enlargement instruction Among them, it is possible to easily expand at an appropriate magnification according to the number of people who were actually participating in the class at that time instead of the predetermined number of people (for example, the total number of students in the class). . As a result, it is possible to determine the surrounding situation in real time and to perform an enlarged display at an optimum magnification.

Example 4 Configuration
Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 19 conceptually shows an example of the overall configuration of the display change system of the present invention. As shown in FIG. 19, the present invention is configured such that the terminal B, the enlarged display device C, and the subordinate terminal D are directly connected or connected via a communication network N (hereinafter referred to as “network N”). ing. The connection format between the terminal B and the enlarged display device C may be either a direct connection or a connection via the network N.

  Next, a fourth embodiment of the display change system of the present invention will be described using the functional block diagram of FIG. In addition, the same code | symbol is attached | subjected to the same component as Example 1 or Example 3, and the detailed description is abbreviate | omitted when performing the same operation | movement as Example 1 or Example 3. FIG.

  In the fourth embodiment of the display change system of the present invention, the terminal B includes a curriculum information acquisition unit 13, a curriculum information storage unit 14, a magnification determination unit 15, a determination table 16, a display control unit 17, and a terminal information acquisition unit. 18a, the terminal information storage unit 18b, and the curriculum information generation unit 19 are different from the first and third embodiments.

  The present embodiment is characterized in that the present invention can be realized only by the terminal B, the enlarged display device C, and the subordinate terminal D without providing the management server A as in the first and third embodiments. .

  By configuring as in the present embodiment, the present invention can be implemented even when the management server A is not provided. Thereby, the work and cost relating to the system configuration of the present invention can be reduced.

A: Management server B: Terminal C: Enlarged display device D: Subordinate terminal 1: Arithmetic device 2: Storage device 3: Communication device 4: Input device 5: Display device 10: Network I / F
11: enlargement instruction information acquisition unit 12: image information acquisition unit 13: curriculum information acquisition unit 14: curriculum information storage unit 15: magnification determination unit 16: determination table 17: display control unit 18a: terminal information acquisition unit 18b: terminal information storage Part 19: Curriculum information generation part 20: Network I / F
21: Terminal control unit 22: Expansion instruction information generation unit 23: Image information generation unit 30: Network I / F
31: Display control information receiving unit 32: Display device control unit 33: Image display unit 40: Connection I / F
50: Connection I / F
60: Network I / F
61: Subordinate terminal control unit 62: Terminal information generation unit

Claims (4)

In a display change system having an instruction terminal for enlarging and displaying a predetermined area of an image using a display device when a lesson is performed, an image information acquisition unit that acquires image information of the predetermined area, and enlargement of the image and enlargement instruction information acquisition unit for acquiring an enlarged indication information indicating a curriculum information acquisition unit for acquiring the curriculum information lesson being implemented at the time of acquisition of the enlargement instruction information, the image based on the curriculum information A magnification determination unit that determines an enlargement magnification of information; and a display control unit that enlarges the image information based on the enlargement magnification and displays the image information on the display device, and the curriculum information acquisition unit includes the curriculum information as the curriculum information. Information including at least one of the content of the lesson, the place of implementation, the number of students, and the organization of the class is acquired. Change system. A display in which an instruction terminal that enlarges and displays a predetermined area of an image using a display device, a subordinate terminal used by a participant participating in the lesson, and a management server are connected via a network when a lesson is conducted In the change system, the management server includes an image information acquisition unit that acquires image information of the predetermined area, an enlargement instruction information acquisition unit that acquires enlargement instruction information for instructing enlargement of the image, and the enlargement instruction information. A terminal information acquisition unit that acquires information about the dependent terminal at the time of acquisition, a curriculum information acquisition unit that acquires curriculum information of the lesson generated based on the terminal information, and the image information based on the curriculum information A magnification determination unit that determines an enlargement magnification; and a display control unit that enlarges the image information based on the enlargement magnification and displays the image information on the display device. And the curriculum information acquisition unit acquires, as the curriculum information, information including any one or more of the content of the lesson, the place of implementation, the number of students, and the organization of the class . In a display change system having an instruction terminal for enlarging and displaying a predetermined area of an image using a display device when carrying out a lesson, an image information acquisition function for acquiring image information of the predetermined area, and enlargement of the image An enlargement instruction information acquisition function for acquiring enlargement instruction information for instructing, a curriculum information acquisition function for acquiring curriculum information of the class being conducted at the time of acquisition of the enlargement instruction information, and the image based on the curriculum information A magnification determination function for determining an enlargement magnification of information; and a display control function for enlarging the image information based on the enlargement magnification and causing the display device to display the image information. The curriculum information acquisition function includes: the contents of the lesson as information, implementation location, course number, and to obtain any information including one or more participants tissue con Display change program to be implemented Yuta. An enlargement in which an instruction terminal that enlarges and displays a predetermined area of an image using a display device, a subordinate terminal used by a participant participating in the lesson, and a management server are connected via a network when a lesson is performed In the display system, an image information acquisition function for acquiring image information of the predetermined area, an enlargement instruction information acquisition function for acquiring enlargement instruction information for instructing enlargement of the image, and the slave terminal at the time of acquisition of the enlargement instruction information A terminal information acquisition function for acquiring information related to the curriculum, a curriculum information acquisition function for acquiring curriculum information of the lesson generated based on the terminal information, and a magnification determination for determining an enlargement magnification of the image based on the curriculum information a function and, and a display control function of displaying on said display device to expand the picture image information on the basis of the magnification, before Curriculum information acquisition function, the contents of the lesson as the curriculum information, implementation location, course number, and display change program for realizing the management server to acquire any information including one or more participants tissue.

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