JP6248409B2 - Data management system and program - Google Patents

Description

  The present invention relates to a technique for managing a group of data such as files.

  2. Description of the Related Art Conventionally, electronic pens that digitize written information have been developed, and “Anot pen” developed by Swedish company Anoto is known as a representative one. For example, as described in Patent Document 1, the anotopen reads a predetermined dot pattern printed on a sheet, generates entry information, and transmits the entry information to the terminal device.

  Patent Document 2 describes that metadata is added to an electronic document file representing a paper on which a dot pattern is formed. Further, Patent Document 3 discloses a technique for registering search metadata indicating the contents entered with an electronic pen while viewing the content on the time axis of the video content and the audio content.

Japanese Patent No. 3874498 JP 2009-76054 A JP 2007-334526 A

  It would be convenient if different educational institutions could share electronic data of educational materials such as resumes and tests generated at educational sites such as schools, and entry data indicating student answers and teacher comments. In that case, a system capable of managing and searching the electronic data and entry data of the above teaching materials is required. Therefore, the main object of the present invention is to provide a data management system and program capable of suitably managing data relating to education.

In one aspect of the present invention, a data management system includes a character recognition unit that performs character recognition on entry contents indicated by data relating to education, and a meta-data that associates the metadata obtained by the character recognition with the data relating to education. data associating means, data regarding education metadata associated with the metadata associated means, have a storage means for retrievably stored based on the metadata, the metadata associated means, about the educational When the data indicates the answer contents of the test, the time required for filling in the answer contents in the data relating to the education, the time from the start of the test to the start of writing the answer contents, or the start of the test Information indicating at least one of the time from writing to the end of writing of the answer content as metadata. When associating, the time for which the test was paused by selecting the button indicating the suspension of the test is subtracted from the time, and the information indicating the time after the subtraction is used as metadata for the education. Associate with data .

The data management system includes character recognition means, metadata association means, and storage means. The character recognition means performs character recognition on the entry content indicated by the data related to education. The metadata association means associates metadata obtained by character recognition with data related to education. The storage means stores data relating to education associated with the data so as to be searchable based on the metadata. Here, “data related to education” includes, for example, display information obtained by digitizing educational materials such as resumes and tests, and stroke display information that reproduces the contents filled in by students and teachers. Points to data handled by With this configuration, the data management system can store metadata obtained by character recognition in association with each piece of data related to education, and can suitably search for data related to education using the metadata.
In addition, when the data relating to the education indicates the content of the answer to the test, the metadata associating means includes, in the data relating to the education, the time required for the entry of the content of the answer, from the start of the test to the start of writing the content of the answer. Or information indicating at least one of the time from the start of the test to the end of writing of the answer content is associated as metadata. According to this aspect, the data management system can suitably store the data related to education so that the search can be performed by designating information related to the time required for the test.

In one aspect of the data management system, the metadata association unit associates, as metadata, keyword information related to the entry content with the data related to education. According to this aspect, the data management system can suitably store the data related to education so that when the data related to education indicates the content of entry, a search can be performed by specifying a keyword related to the content of entry.
In another mode of the data management system, the metadata associated means, data relating to the training, at least one of information for identifying the information or teacher to identify the institution associated with the data, metadata Associate as. According to this aspect, the data management system can suitably store data relating to education so that a search can be made by designating an educational institution such as a school or a teacher.

In another mode of the data management system, the metadata associated means, data relating to the training, the identity of materials related to the data, related as metadata. According to this aspect, the data management system can suitably store data relating to education so that a search can be performed with the identification information of the teaching material specified.

In another mode of the data management system, the metadata associated means, data relating to the education, information indicating the type of the entry content, related as metadata. According to this aspect, the data management system can suitably store data relating to education so that a search can be performed by specifying the type of entry content.

In another mode of the data management system, the metadata association means, said calculating the number of strokes constituting the entry content, the information on the number of the strokes, associated with data relating to the educational as metadata. According to this aspect, the data management system can suitably store the data related to education so that when the data related to education indicates the entry content, the search specifying the number of strokes constituting the entry content can be performed.

In another mode of the data management system, the metadata associated means calculates the number of people involved in entry of the entry content, the information of the number, associated with the data relating to the educational as metadata. According to this aspect, the data management system can suitably store the data related to education so that when the data related to education indicates the contents of entry, a search specifying the number of persons involved in the entry can be performed.

  In another aspect of the data management system, the data management system includes an input unit that receives an input that specifies metadata, and a search unit that searches for data related to the education associated with the metadata specified by the input. Display means for displaying data relating to the education searched by the search means. According to this aspect, the data management system can accept input of metadata and display data related to any education desired by the user.

  In another aspect of the data management system, the data management system further includes data generation means for generating data relating to the education based on the entry information generated by the electronic pen. According to this aspect, the data management system can generate data related to education based on the entry information generated by the electronic pen and store it in a searchable manner.

  The program according to the present invention causes a computer device to function as any one of the metadata association means described above. By installing these programs in the computer apparatus and causing them to function, the computer apparatus can suitably execute the processing of the metadata association unit.

  According to the present invention, the data management system can suitably manage the data related to education so that the data related to education can be searched by the metadata by storing the metadata in association with each of the data related to education.

It is a system configuration figure of a data management system concerning this embodiment. Show the situation in the classroom. It is a top view of the answer sheet distributed to the student “Taro”. The other aspect of an answer sheet is shown. It is a figure which shows the response | compatibility of an answer sheet, an electronic pen, and a student (entrant). It is a figure explaining the relationship between the dot of a dot pattern, and the value into which the dot is converted. (A) shows a dot pattern typically, and (b) is a figure showing an example of information corresponding to it. It is the schematic which shows the structure of an electronic pen. It is a schematic block diagram of a computer apparatus. It is a schematic block diagram of a management server. It is a schematic block diagram of a cloud server. (A) Shows the data structure of user-defined information. (B) A schematic structure of the entry file is shown. The data structure of metadata DB is shown. It is an example of a display of a drawing application window. FIG. 6 shows a display example of a drawing application when executing an arithmetic test corresponding to the example of FIG. The display example of the drawing application which displayed the content of the answer after completion | finish of a test is shown. A display example of the file search screen is shown. A display example of the search result screen is shown.

  Hereinafter, preferred embodiments of a system according to the present invention will be described with reference to the drawings.

[System configuration of data management system]
FIG. 1 is a system configuration diagram of the data management system 10. The data management system 10 shown in FIG. 1 is meta-formatted into a file (also referred to as “entry file”) obtained by digitizing the contents entered by the electronic pen 1 or a file obtained by digitizing educational materials (also referred to as “learning material file”). In this system, data is added and managed so as to be searchable by the cloud server 7. Hereinafter, when there is no particular distinction between the entry file and the teaching material file, these are also simply referred to as “files”.

  The cloud server 7 is a computer device 3 (3A to 3C) via a management server 4 installed for each educational institution such as a school or a wireless LAN router 9 that performs wireless communication in accordance with Wi-Fi (registered trademark). Receive entry files and teaching material files from. Further, the cloud server 7 receives entry information from the electronic pen 1 via the base station 8 connected to the mobile phone communication network, and generates an entry file.

  The management server 4 transfers the entry file and the teaching material file received from the computer apparatuses 3 </ b> A and 3 </ b> B to the cloud server 7. The computer devices 3A and 3B are installed in the classrooms A and B, respectively, and receive entry information transmitted from each electronic pen 1 and display entry contents and the like on the display. In the classroom A, there are the dot printing paper 2 on which the dot pattern is printed and the display 5A on which the dot patterns are laminated, and the students and teachers fill in the dot printing paper 2 and the display 5A with the electronic pen 1. In classroom B, there are answer sheets on which dot patterns are printed, textbooks, notebooks for board writing, dot printing paper 2 such as a learning drill book, and a dot screen 5B described later. Thus, the dot printing paper 2 and the dot screen 5B are filled in.

  The wireless LAN router 9 is installed at a student's home, for example, and receives the entry file from the computer apparatus 3C and transfers it to the cloud server 7. In the example of FIG. 1, the computer device 3 </ b> C receives the entry information generated and transmitted by the electronic pen 1 by an entry operation on the learning drill book or the dot printing paper 2 that is an answer sheet. Then, the computer device 3 </ b> C generates an entry file from the entry information received from the electronic pen 1 and transmits it to the cloud server 7 via the wireless LAN router 9.

  The display 5A is a material that reflects infrared rays so that it can be read by the electronic pen 1 on a base film that is a transparent resin substrate such as polyethylene terephthalate (titanium oxide, cholesteric liquid crystal, infrared reflective pigment, etc.). A dot pattern (encoded pattern) is printed with ink containing, and has a layer structure protected by a protective layer such as a transparent EB cured resin. Here, the dot pattern is printed with a material that reflects infrared rays, even if visible light of various colors is emitted from the display panel under the dot pattern forming layer, the electronic pen 1 has a good contrast. This is because it is desirable to recognize the dot pattern.

[System configuration in classroom B]
Next, a specific example of the system configuration in the classroom B will be described for convenience of the subsequent processing description. FIG. 2 shows the inside of classroom B. In classroom B, electronic pens 1A to 1F (1) used by students and teachers, and answer patterns 2A to 2E printed on each student's desk are printed with dot patterns (encoded patterns) on almost the entire surface. The computer device 3B that receives the entry information from the electronic pen 1 and reproduces and displays the entry contents on the answer sheets 2A to 2E based on the entry information, the dot screen 5B on which the dot pattern is printed, and the display screen of the computer device 3B And a projector 11 that projects the same image on the dot screen 5B.

  In the dot screen 5B, a dot pattern (coded pattern) is printed on a white resin substrate with an ink containing carbon that absorbs infrared rays so that the electronic pen 1 can read the image. It has a layer structure protected by a resin layer or the like. The light that constitutes the same image as the screen of the computer apparatus 3B is projected by the projector 11 on the dot screen 5B.

  FIG. 3 is a top view of the answer sheet 2A distributed to the student “Taro”. One or a plurality of answer sheets 2A are prepared for the student “Taro”. In the example of FIG. 3, squares are printed on the answer sheet 2A. The dot pattern is printed with ink containing carbon that absorbs infrared rays, and the squares are printed with ink that does not absorb in the infrared region.

  When a plurality of answer sheets 2A to 2E are prepared for each student, dot patterns (coded patterns) in different coordinate ranges are printed on the answer sheets 2A to 2E distributed to the same student. In addition, on the answer sheets 2A to 2E, an entry column, a question, an answer column, and the like may be printed. 4A to 4C are top views of the answer sheet 2A showing a mode different from that shown in FIG. Thus, when entry fields and problems are printed on the answer sheets 2A to 2E, these entry fields and problems are printed with ink that does not absorb in the infrared region.

  Next, the correspondence between the answer sheets 2A to 2E and the electronic pens 1A to 1E and the students (entries) will be described. In the classroom B, as shown in FIG. 5, the student “Taro” answers the answer sheet 2A using the electronic pen 1A, and the student “Jiro” answers the answer sheet 2B using the electronic pen 1B. “Saburo” answers the answer sheet 2C using the electronic pen 1C, the student “Shiro” answers the answer sheet 2D using the electronic pen 1D, and the student “Goro” answers using the electronic pen 1E. The answer shall be on sheet 2E. In addition, the teacher (operator) “Hanako” operates the computer device 3B.

[Dot pattern]
Next, referring to FIG. 6 and FIG. 7, an Anoto dot pattern (coding pattern) formed on the dot printing paper 2, the display 5 </ b> A, and the dot screen 5 </ b> B (these are also simply referred to as “entry media”). ). FIG. 6 is a diagram for explaining the relationship between the dots of the dot pattern printed on the entry medium and the values to which the dots are converted. As shown in FIG. 6, each dot of the dot pattern is associated with a predetermined value depending on its position. In other words, each dot is associated with a value of 0 to 3 depending on which direction the top, bottom, left, or right is shifted from the reference position of the grid (intersection of the vertical line and horizontal line). The value of each dot can be further converted into a first bit value for the X coordinate and a second bit value for the Y coordinate. The position coordinates on the paper are determined by the combination of the information thus associated.

  FIG. 7A shows an arrangement of a certain dot pattern. As shown in FIG. 7A, 6 × 6 dots are arranged in a range of about 2 mm in length and width so that a unique pattern can be obtained no matter which part of the paper is taken 6 × 6 dots. Yes. The dot pattern formed by these 36 dots holds position coordinates (for example, on which position the dot pattern is located on the entry medium). FIG. 7B is a diagram in which each dot shown in FIG. 7A is converted into a corresponding value based on the regularity shown in FIG. 6 according to the shift direction from the reference position of the lattice. This conversion is performed by the electronic pen 1 that captures an image of a dot pattern.

[Electronic pen]
Next, the electronic pen 1 will be described with reference to FIG. FIG. 8 is a schematic view showing the structure of the electronic pen 1. As shown in FIG. 8, the electronic pen 1 includes an ink cartridge 104, an LED 105, a CMOS camera 106, a pressure sensor 107, a processor 108 including a CPU, a memory 109 such as a ROM and a RAM, A communication unit 111 including a real-time clock 110, an antenna, and the like, and a battery 112 are provided. The tip of the ink cartridge 104 is a pen tip portion 103, and each student enters a stroke (handwritten stroke) by bringing the pen tip portion 103 of the electronic pen 1 into contact with an entry medium. The ink of the ink cartridge 104 does not include a material that absorbs infrared rays (for example, carbon). Here, contact of the pen tip portion 103 of the electronic pen 1 with the paper is referred to as “pen down”, and removal of the pen tip portion 103 from the contact (contact) state is referred to as “pen up”. . A trajectory written between the pen-down and pen-up of the electronic pen 1 is one stroke, and characters, figures, etc. are composed of one or a plurality of strokes.

  The battery 112 is for supplying electric power to each component in the electronic pen 1. For example, the battery 112 is configured to turn on / off the electronic pen 1 itself by attaching and detaching a cap (not shown) of the electronic pen 1. May be. The real time clock 110 transmits time information indicating the current time (time stamp) and supplies the time information to the processor 108. The pressure sensor 107 detects the pressure applied through the ink cartridge 104 from the pen tip portion 103 when the student writes or taps a character or mark on the entry medium with the electronic pen 1, that is, the writing pressure, and the value is detected by the processor. To 108.

  The processor 108 switches on / off the switches of the LED 105 and the CMOS camera 106 based on the writing pressure data supplied from the pressure sensor 107. That is, when the student writes characters or the like on the entry medium with the electronic pen 1, the pen pressure is applied to the pen tip portion 103, and when the pressure sensor 107 detects a writing pressure higher than a predetermined value, the processor 108 It is determined that entry has started, and the LED 105 and the CMOS camera 106 are operated. When the student finishes entering one stroke and releases the electronic pen 1 from the entry medium, the pressure sensor 107 detects pen-up because no writing pressure exceeding a predetermined value is detected. Then, the communication unit 111 associates the pen-up information detected by the pressure sensor 107 with the pen ID, and transmits it as entry information to the computer apparatus 3 or the like.

  The LED 105 and the CMOS camera 106 are attached near the pen tip portion 103 of the electronic pen 1, and an opening 102 is formed in a portion of the housing 101 that faces the LED 105 and the CMOS camera 106. The LED 105 illuminates infrared rays toward the vicinity of the pen tip portion 103 on the entry medium. The region is slightly deviated from the position where the pen tip 103 contacts the entry medium. The CMOS camera 106 is provided with an infrared transmission filter that transmits infrared rays and blocks non-infrared rays. The CMOS camera 106 captures a dot pattern in an area illuminated by the LED 105, and the image data of the dot pattern is captured. This is supplied to the processor 108.

  Here, since the ink material of dots printed on the dot printing paper 2 or the dot screen 5B absorbs infrared rays, the infrared rays irradiated by the LED 105 are absorbed by the dots. Therefore, the dot portion has a relatively small amount of infrared reflection, and the portion other than the dot has a relatively large amount of infrared reflection. By photographing with the CMOS camera 106, a dot area and other areas can be distinguished by providing a threshold value based on the difference in the amount of reflected infrared light. On the other hand, since the dot ink material formed on the display 5A reflects infrared rays as will be described later, the infrared rays irradiated by the LED 105 are reflected by the dots. Therefore, the dot portion has a relatively large amount of infrared reflection, and the portion other than the dot has a relatively small amount of infrared reflection. By photographing with the CMOS camera 106, a dot area and other areas can be distinguished by providing a threshold value based on the difference in the amount of reflected infrared light. Note that the shooting area by the CMOS camera 106 is a range including a size of about 2 mm × about 2 mm as shown in FIG. 7A, and the shooting by the CMOS camera 106 is performed at regular intervals of about 50 to 100 times per second. Is called. Further, the CMOS camera 106 has a sufficient depth of field in order to photograph dots clearly.

  During the student's entry, the processor 108 uses the dot pattern of the image data supplied by the CMOS camera 106 to determine the X and Y coordinates (hereinafter referred to simply as “coordinate data”) on the entry medium of the stroke (handwriting) to be entered by the student. Or “coordinate information”) is continuously calculated. That is, the processor 108 converts the image data of the dot pattern as shown in FIG. 7A supplied by the CMOS camera 106 into the data array shown in FIG. The data is converted into a Y coordinate bit value, and X and Y coordinate data are calculated from the data array by a predetermined calculation method. The processor 108 has a rotation correction processing function for correcting the arrangement of dots on the image due to the angle of the electronic pen 1 facing the dot pattern, and is used for coordinate calculation. Then, the processor 108 associates the current time (time stamp: entered time information) transmitted from the real-time clock 110, writing pressure data, and X and Y coordinate data. Hereinafter, these associated data are collectively referred to as “coordinate attribute information”. Since the 6 × 6 dot pattern in the entry medium does not overlap in the entry medium, when the student enters characters or the like with the electronic pen 1, it indicates which position on the entry medium the entered position corresponds to. It can be specified by coordinate calculation by the processor 108.

  The memory 109 stores property information such as a pen ID, a pen manufacturer number, and a pen software version for identifying each electronic pen 1. Then, the communication unit 111 associates the pen ID, time information (time stamp), writing pressure data, and X and Y coordinate data, and transmits them as entry information to the computer device 3 or the like. Transmission to the computer apparatus 3 or the like by the communication unit 111 is performed immediately and sequentially by wireless transmission such as Bluetooth (registered trademark). Here, one or a plurality of coordinate attribute information generated between the pen-down and pen-up of the electronic pen 1 and transmitted to the computer device 3 or the like is stored as stroke information by the computer device 3 or the like. In other words, one stroke is composed of one or a plurality of X and Y coordinates (coordinate points), and the computer device 3 or the like is configured by one or more composing one stroke by pen down information and pen up information. Recognize coordinate attribute information.

  Preferably, the communication unit 111 includes a first communication device that performs Bluetooth wireless communication processing, a second communication device that performs wireless communication processing compliant with Wi-Fi, and a third communication device that performs portable communication processing. And have. The communication unit 111 performs wireless communication using any one of the first communication device, the second communication device, and the third communication device based on the control of the processor 108.

  The first communication device exchanges information such as a pass key that is an authentication key with the computer apparatus 3 in advance by a pairing operation, and recognizes the computer apparatus 3 as a communication partner of Bluetooth communication. Then, the first communication device transmits a radio wave for a predetermined time when the cap (not shown) of the electronic pen 1 is removed, and establishes Bluetooth communication with the computer apparatus 3 when the computer apparatus 3 receives the radio wave. The second communication device transmits an ESS-ID and an encryption key to the wireless LAN router 9 after receiving a radio wave (beacon) transmitted from the wireless LAN router 9 and receives authentication from the wireless LAN router 9. Establish WiFi communication with the wireless LAN router 9. In this case, the second communication device performs communication by designating the communication address stored in the memory 109 as the transmission destination address based on the control of the processor 108. The third communication device includes a chip such as a SIM necessary for performing communication in the mobile phone communication system. When the entry information is transmitted by the third communication device, the processor 108 designates the communication address of the cloud server 7 stored in the memory 109 as the transmission destination. Further, the processor 108 transmits the identification information stored in the SIM together with the entry information to the transmission destination.

  In addition, the electronic pen 1 should just be equipped with either the 1st-3rd communication device according to a use instead of providing all the 1st-3rd communication devices. In addition, the electronic pen 1 may include a pen portion that is not filled with ink instead of the ink cartridge 104. In this case, ink is not output from the nib portion 103.

  Preferably, when the CMOS camera 106 recognizes the dot pattern, the electronic pen 1 determines whether the dot pattern is formed of an infrared reflecting material or an infrared absorbing material, and based on the determination. The dot pattern reading program may be switched. Specifically, the electronic pen 1 first performs a binarization process on the image captured by the CMOS camera 106 using a predetermined threshold, and the infrared reflection region and the infrared absorption from the binarized image. The area is discriminated, and the magnitude relation between the area of the infrared reflection area and the area of the infrared absorption area is compared. The electronic pen 1 performs a negative / positive inversion process on the binarized image when the infrared absorption area is larger than the infrared reflection area, and performs a negative / positive inversion process when the negative / positive inversion process is performed. The dot pattern is recognized based on the obtained image, and when the negative / positive inversion process is not performed, the dot pattern is recognized based on the binarized image. Thereby, it is possible to appropriately recognize both the dot pattern printed with the infrared absorbing ink and the dot pattern printed with the infrared reflective ink.

[Computer device]
Next, the computer apparatus 3 will be described with reference to FIG. The computer device 3 includes, as hardware, an antenna device capable of data communication with the electronic pen 1 and the wireless LAN router 9, a processor such as a CPU, a memory such as a ROM and a RAM, a display, a mouse, a keyboard, and the like. The computer apparatus 3 may be configured by a tablet PC such as iPad (registered trademark), a PDA (Personal Data Assistance), a PC (personal computer) equipped with a display, or the like. As shown in FIG. 9, the computer device 3 functionally includes an input unit 31 such as a touch panel, a communication unit 32, a processing unit 34, a storage unit 33, and a display unit 36. The communication unit 32 includes an antenna receiving circuit and the like, receives entry information from the electronic pen 1, and transmits the received information to the processing unit 34. The communication unit 32 exchanges an entry file, a teaching material file, and the like with the cloud server 7. The display means 36 is constituted by a display or the like, and displays the contents instructed by the processing means 34.

  The storage unit 33 includes a memory such as a ROM, a RAM, and a hard disk, and stores information on a coordinate range (also referred to as “coordinate definition information”) indicated by a dot pattern printed on each entry medium. As shown in FIG. 12A, the storage unit 33 stores the user ID and the user name in association with the unique pen ID held by the electronic pen 1 as user definition information. In FIG. 12A, for example, the user ID “U01” and the user name “Taro” are stored in association with the pen ID “pen01” in advance. Further, the storage unit 33 stores entry information transmitted by each electronic pen 1 for each pen ID. Furthermore, the storage means 33 stores in advance a learning material file generated by a teacher who is an operator of the computer device 3. The teaching material file is, for example, a test, a resume distributed in a class, and electronic data of a reference book.

  The storage means 33 stores an entry file, which is learning data in a file format, by executing the program by the processing means 24 based on the entry information and the user definition information. FIG. 12B shows a schematic structure of the entry file. As shown in FIG. 12B, the entry file is operated for categorization according to the user ID, the user stroke information including the position coordinate information of the entry information transmitted from the electronic pen 1, and the answer contents. User color (classification) information set by the user and metadata. The user ID is specified by the processing unit 34 by referring to the user definition information stored in advance in the storage unit 33 based on the pen ID included in the entry information, and is associated with the user stroke information based on the entry information. It is done. The user stroke information includes position coordinate (XY coordinate) information calculated by the electronic pen 1, time information when written, and writing pressure information. When reading the file data, the operator inputs a user ID, user color information, and the like into a predetermined input area by the input unit 31, causes the processing unit 34 to search for specific data, and obtains user stroke information. It can be reproduced on the display means 36.

  The processing means 34 is constituted by a processor such as a CPU and controls the entire computer device 3. The processing unit 34 includes a file generation unit 340, a metadata association unit 341, and a display control unit 342.

  The file generation unit 340 generates an entry file shown in FIG. 12B based on the entry information generated and transmitted by the electronic pen 1. The file generation means 340 functions as the “data generation means” in the present invention.

  The metadata association unit 341 adds metadata to the entry file generated by the file generation unit 340. The metadata association unit 341 adds the metadata to the teaching material file stored in the storage unit 33 and specified by the input unit 31 to be uploaded to the cloud server 7 by the operator.

  The metadata associating means 341 includes, as metadata, for example, a teacher name, identification information of a teaching material indicating the contents of the teaching material displayed or printed on the entry medium, keyword information relating to a solution, identification information for each type of entry medium In addition, various information described in specific examples of FIGS. 15 and 16 to be described later is added to the entry file. Further, the metadata association unit 341 indicates information such as the name of the teacher who is the creator of the teaching material based on the input by the input unit 31 and the setting information stored in the storage unit 33 in advance for the designated teaching material file. Add metadata. Then, the metadata association unit 341 transmits the file with the added metadata to the cloud server 7 through the communication unit 32. Specific processing of the metadata associating unit 341 will be described in detail in the [specific example] section.

  The display control unit 342 reproduces the entry information associated with each pen ID as a handwriting and displays it on the display unit 36. In addition, the display control unit 342 receives an input designating metadata for searching for a file desired by the user by causing the display unit 36 to display a file search screen shown in FIG. 17 to be described later. Then, the display control unit 342 transmits file request information (also referred to as “file request information”) including the specified metadata information to the cloud server 7. Then, the display control unit 342 causes the display unit 36 to display the file received from the cloud server 7.

  Further, in the example of classroom B shown in FIG. 2, the display control means 342 of the computer apparatus 3B displays the entry contents on the display means 36 based on the entry information about the answer sheets 2A to 2E, and also displays the electronic pen ID. The user name corresponding to the corresponding user ID is displayed. Further, the display control means 342 of the computer device 3B synchronizes the same contents as the display means 36 and displays the same signal as the display signal for the display means 36 to the communication means 32 in order to project and display from the projector 11 onto the dot screen 5B. To transmit to the projector 11.

[Management server configuration]
Next, the management server 4 will be described. The management server 4 includes, as hardware, a communication device capable of data communication, a processor such as a CPU, and a memory such as a ROM and a RAM.

  FIG. 10 is a functional block diagram of the management server 4. The management server 4 is functionally composed of a communication unit 42, a storage unit 43, a processing unit 44, and the like.

  The communication unit 72 receives the entry file from the computer apparatuses 3A and 3B and transmits the received information to the processing unit 74. The storage unit 73 is configured by a memory such as a ROM or a RAM. The storage unit 73 stores metadata information attached to the received entry file or teaching material file, such as the name of the school that is the educational institution that owns the computer apparatuses 3A and 3B and the management server 4.

  The processing means 74 is constituted by a processor such as a CPU, and controls the entire management server 4. The processing unit 74 includes metadata association unit 441. The metadata association unit 441 assigns metadata to the entry file or teaching material file received from the computer apparatuses 3A and 3B. For example, the metadata association unit 441 adds information on the name of the school that owns the management server 4 or the like as metadata to the entry file. Then, the metadata association unit 441 transmits the entry file or teaching material file with the added metadata to the cloud server 7 via the communication unit 72.

[Cloud server configuration]
Next, the cloud server 7 will be described. The cloud server 7 includes, as hardware, a communication device capable of data communication, a processor such as a CPU, and a memory such as a ROM and a RAM.

  FIG. 11 is a functional block diagram of the cloud server 7. The cloud server 7 is functionally configured by a communication unit 72, a storage unit 73, a processing unit 74, and the like.

  The communication unit 72 receives an entry file from the computer device 3 or receives entry information from the electronic pen 1 and transmits the received information to the processing unit 74. The communication unit 72 receives file request information from the computer apparatus 3 and transmits display information corresponding to the file request information to the computer apparatus 3.

  The storage unit 73 is configured by a memory such as a ROM or a RAM. The storage unit 73 stores the received or generated entry file and teaching material file, and a database of the entry file and the teaching material file (also referred to as “file DB”) for making these files searchable based on the metadata. Remember. Similarly to the storage unit 33 of the computer device 3, the storage unit 73 stores coordinate definition information of the dot pattern printed on the entry medium.

  FIG. 13 shows the data structure of the file DB. As shown in FIG. 13, the file DB stores metadata information attached to the file indicated by the fill ID for each file ID. Here, “file ID” indicates identification information of each file registered in the file DB. “School name” indicates the name of the educational institution (school) that provided the target file. The “teacher name” indicates the name of the supervisor who took charge of the lesson when the file was created when the target file was an entry file, and the name of the teacher who created the material file when the target file was a teaching material file Show. "Educational material identification information" indicates the identification information of the educational material used in the lesson when the file was created when the target file was an entry file, and the identification information of the educational material when the target file was a educational material file . Instead of the example of FIG. 13, the learning material identification information may be the name (title) of the learning material when the identification number is not assigned to the target learning material. “Entry medium identification information” indicates identification information of an entry medium that is to be filled in by the electronic pen 1 when the entry information used for creating the entry file is generated. In the present embodiment, the entry medium identification information indicates, for example, which of the dot printing paper 2, the display 5A, and the dot screen 5B. The entry medium identification information may be a dot pattern address to which the position coordinates indicated by the dot pattern attached to the target entry medium belong. The “entry type information” is information indicating whether entry by a student, entry by a teacher, or entry of a teacher's comment for entry by a student. In the example of FIG. 13, “1” indicating entry by a student is set as entry type information.

  “Entry time” indicates the time span from the first entry time of the answer contents to the last entry time when the target file is an entry file indicating the answer contents of the test. “Time required for starting writing” indicates the time width from the start time of the test to the first entry time of the answer contents when the target file is an entry file indicating the answer contents of the test. “Answer time” indicates a time width from the start time of the test to the last time entered in the answer contents when the target file is an entry file indicating the answer contents of the test. “Keyword” is a solution that indicates information on keywords related to the entry content, for example, the entry content recorded in the entry file, when the target file is an entry file in which predetermined entry contents are recorded. . “Number of strokes” indicates the number of strokes constituting the entry contents when the target file is an entry file in which predetermined entry contents are recorded. “Number of persons involved” indicates the number of persons involved in the entry of the entry contents when the target file is an entry file in which predetermined entry contents are recorded. “Storage location” indicates a location (path) where the target file is stored.

  As shown in FIG. 13, in the case of a teaching material file such as a file ID “0201”, “entry medium identification information”, “entry type”, “entry time”, “required start time”, “answer time”, The “Keyword”, “Stroke Count”, and “Number of Participants” fields are blank.

  The processing means 74 is constituted by a processor such as a CPU and controls the entire cloud server 7. The processing unit 74 includes a storage control unit 741 and a search unit 742.

  The storage control unit 741 stores the entry file and teaching material file received from the computer apparatus 3 in the storage unit 73 and registers the received file in the file DB. Further, the storage control unit 741 generates an entry file when entry information is received from the electronic pen 1 via the base station 8. For example, in this case, the storage control unit 741 divides the entry information for each entry pattern to which the position coordinates indicated by the received entry information belong and the entry medium to which the dot pattern corresponding to the entry information is added. Generate a file. Then, the storage control means 741 gives various metadata such as entry medium identification information and the number of strokes to the generated entry file, stores the entry file in the storage means 73 and registers it in the file DB. Note that the storage control unit 741 may further add metadata such as keywords to each entry file by character recognition and analysis of the entry contents recorded in each created entry file.

  The search means 742 searches for a specified file based on the file request information received from the computer device 3. Then, the search unit 742 extracts information on the file that matches the search condition indicated by the file request information from the storage unit 35 and transmits it to the computer apparatus 3 by the communication unit 72. The processing of the search means 742 will be described in detail in the [File Search] section.

[Concrete example]
Next, with reference to FIGS. 14 to 16, a specific example including processing for adding metadata will be described for the case where the computer apparatus 3 </ b> B installed in the classroom B is an operation target.

(1) Basic Description of Drawing Application Window FIG. 14 is an example of a window (also referred to as a “drawing application window”) based on execution of a predetermined drawing application program displayed on the display screen of the display means 36 of the computer apparatus 3B. Indicates.

  Based on the entry information generated when the answer sheets 2A to 2E are filled in with the electronic pen 1, the electronic data on the answer sheets 2A to 2E is stored by the user stroke information stored as the entry file in the storage means 33 in the computer 3B. A stroke in which the handwriting of the pen 1 is reproduced (hereinafter also simply referred to as “reproduction stroke”) is drawn in the user stroke information display area 50 of the display unit 36 by the display control unit 342. When the reproduction stroke to be drawn is larger than the user stroke information display area 50 in enlarged display or the like, the display control means 342 enables the horizontal scroll bar 51 and the vertical scroll bar 52, and displays the user stroke information by the operator's mouse operation. The area 50 is scrolled so that the entire reproduction stroke can be displayed in a plurality of times.

  Also, the display control means 342 includes a selection user display button 53, a comparison list display button 54, a reproduction display button 56, a selection image output button 57, a display size change list 58, and a reduction display button as function buttons at the top of the drawing application window. 59, an enlarged display button 60, page feed buttons 61 and 62, rotation display buttons 63 and 64, a user control display button 65, and the like, and each process is executed by selecting a function button with a mouse.

  The selected user display button 53 is used to display a large list of reproduction strokes corresponding to one user name selected from a user selection list 69, which will be described later, and to display a list of thumbnails displaying small reproduction strokes corresponding to other user names. Button. The comparison list display button 54 is a button for displaying a list of reproduction strokes corresponding to a plurality of user names at the same time. The reproduction display button 56 is a button for reproducing and displaying the reproduction strokes one by one. The selected image output button 57 is a button for outputting a reproduction stroke in the arbitrary selection range as image data.

  The display size change list 58 is a list that indicates the display size of the reproduction stroke that is currently drawn in the user stroke information display area 50. In addition, the operator can arbitrarily select and change the display size from the pull-down menu using the mouse. The reduction display button 59 is a function for reducing the display size of the reproduction stroke drawn in the user stroke information display area 50 at a predetermined ratio from the currently set display size. The enlargement display button 60 is a function for enlarging the display size of the reproduction stroke drawn in the user stroke information display area 50 at a predetermined ratio from the currently set display size. The page feed buttons 61 and 62 are buttons for displaying answer sheets 2A to 2E having different page addresses (paper dot patterns) when a plurality of answer sheets 2A to 2E are set. The rotation display buttons 63 and 64 are buttons for rotating the reproduction stroke drawn in the user stroke information display area 50 by 90 degrees. The user control display button 65 is a function for switching display / non-display of the user control list 68.

  As shown in FIG. 14, the user control list 68 includes a user selection list 69, color classification buttons 70A to 70F, a list order sort button 78, a color order sort button 79, a classification graph display button 81, a reload button 82, and the like. Is done.

  The user selection list 69 is a list for selecting a reproduction stroke to be displayed in the user stroke information display area 50 by a user name. The user selection list 69 includes a user color (classification) information display field 691, a user name display field 692, and a keyword display field 693. The display control unit 342 displays a user name corresponding to the user ID associated with each user stroke information acquired from the electronic pen 1 and stored in the storage unit 33 as an entry file in the user name display column 692, and color classification User color (classification) information selected by the buttons 70 </ b> A to 70 </ b> F is displayed in the user color (classification) information display field 691, and information on each user such as a keyword indicating a solution is displayed in the keyword display field 693.

  The operator of the computer apparatus 3B can directly input characters into the keyword display field 693 using the keyboard of the input means 21, and the display control means 342 uses the input characters as keyword information to enter the meta data of the entry file. Append to data. Instead of recognizing the keyword based on the input by the input unit 21, the display control unit 342 recognizes and analyzes the reproduction stroke of each student, thereby generating a keyword indicating a solution corresponding to each student's answer. You may recognize it.

  The color classification buttons 70 </ b> A to 70 </ b> F are buttons for setting user color (classification) information for each student displayed in the user selection list 69. The button 70A is a button for setting user color (classification) information in red, the button 70B in blue, the button 70C in yellow, the button 70D in green, the button 70E in brown, and the button 70F in white. When the operator of the computer apparatus 3B selects a specific user name in the user selection list 69 with the mouse and selects a desired button among the color classification buttons 70A to 70F, the display control unit 342 displays the user selection list 69. The user color (classification) information display column 691 of the selected user name is displayed in the designated color. The user color (classification) information may be set to white when not set.

  The list order sort button 78 is a button for sorting the user list displayed in the user selection list 69 in the order of the list number. In this embodiment, the order of user IDs shown in FIG. The color order sort button 79 is arranged so that students in the user list displayed in the user selection list 69 are continuously arranged with the same user color (classification) information attached by the operation of the color classification buttons 70A to 70F. And a button for rearranging in order of user color (classification) information. The classification graph display button 81 is a button for displaying the number of users for each user color information attached by operating the color classification buttons 70A to 70F in the user stroke information display area 50 as a bar graph or the like. The reload button 82 is a button for returning the user stroke information of the student selected in the user selection list 69 to the state when the entry file is saved.

(2) Execution of Test FIG. 15 shows a display example of the drawing application when executing the arithmetic test corresponding to the example of FIG. As shown in FIG. 15, the display control unit 341 includes buttons 101 to 103 related to time management for executing a test and display areas 104 to 105 for time management in a drawing application window. 50.

  When the display control unit 341 detects that the start button 101 has been selected, the display control unit 341 recognizes that the test has started, and displays the remaining time of the test displayed in the display area 104 and the test execution displayed in the display area 105. Update elapsed time. When the display control unit 341 detects that the stop button 102 has been selected, the display control unit 341 recognizes that the test has been temporarily stopped, and displays the display area 104 until it detects that the start button 101 has been selected again. The display update of 105 is stopped. Furthermore, when the display control means 341 detects that the end button 103 has been selected, the display control means 341 recognizes that the test has ended, and displays the user stroke information on a display screen showing the answer contents of each student in FIG. The display of the area 50 is switched.

  FIG. 16 shows a display example of a drawing application that displays the content of the answer after the end of the test. In the example of FIG. 16, the display control means 342 displays in the user stroke information display area 50 the reproduction stroke that reproduces the handwriting with the electronic pen 1D on the Shiro answer sheet 2D selected from the user selection list 69. Further, the display control unit 342 displays a keyword indicating the solution of each student in the keyword display field 693 based on the input to the input unit 31. Instead of recognizing the keyword corresponding to each student based on the input to the input means 31, the display control means 342 recognizes the keyword corresponding to each student by recognizing the reproduction stroke corresponding to each student. May be.

(3) Adding Metadata Next, processing executed by the file generation unit 340 and the metadata association unit 341 in the examples of FIGS. 15 to 16 will be described.

  First, the file generation unit 340 generates an entry file for each answer to the answer sheets 2A to 2E of each student based on the entry information received from the electronic pens 1A to 1E. And the metadata correlation means 341 gives various metadata with respect to each entry file.

  Here, an example of adding metadata to an entry file in which the content of the answer of “Taro” is recorded will be described. Note that the entry file in which the answer content of “Taro” is recorded corresponds to the file with the file ID “0101” in FIG.

  The metadata association unit 341 recognizes the teacher name “Hanako” and the teaching material identification information “0A1” by referring to the setting information stored in advance by the storage unit 33, for example, and assigns the information to the entry file as metadata. To do. Further, the metadata association unit 341 recognizes the type of the entry medium by referring to the coordinate definition information based on the coordinate information of the dot pattern indicated by the entry information used to generate the entry file, and the entry medium identification information “ "Dot printing paper" is given to the entry file as metadata. Further, the metadata association unit 341 recognizes that the entry content recorded in the entry file is written by the student based on the entry information and user definition information used to generate the entry file, and sets the entry type “1”. , It is given to the entry file as metadata.

  Further, in the example of FIG. 15, the metadata association unit 341 includes the time when the entry information used to generate the entry file is first generated and the time when the entry information is generated last based on the time information included in the entry information. Recognize the time difference. Then, the metadata association unit 341 assigns the entry time “8 minutes” corresponding to the above-described time difference to the entry file as metadata. In the example of FIG. 15, the metadata association unit 341 subtracts the paused time from the above time difference when there is a time during which the test is paused by the selection of the stop button 102. Recognize later time as entry time. Further, the metadata association unit 341 recognizes the elapsed time from the start of the test when the entry information used to generate the entry file is first generated based on the time information included in the entry information. Then, the metadata associating unit 341 assigns the writing start required time “7 minutes” corresponding to the above-described elapsed time to the entry file as metadata. In the example of FIG. 15, the metadata association unit 341 selects the stop button 102, and if there is a time during which the test is temporarily suspended before the first entry time, the time is calculated as described above. Subtract from time, start writing the time after subtraction and recognize as required time. Further, the metadata association unit 341 recognizes the elapsed time from the start of the test at the time when the entry information used to generate the entry file is finally generated based on the time information included in the entry information. Then, the metadata association unit 341 assigns the answer time “15 minutes” corresponding to the above-described elapsed time to the entry file as metadata. In the example of FIG. 15, the metadata association unit 341 selects the stop button 102 and, if there is a time during which the test has been temporarily suspended before the last entry time, the time elapsed as described above. Subtract from time and recognize the time after subtraction as answer time.

  Further, the display control unit 342 recognizes the keyword “number sequence” displayed in the keyword display field 693 and assigns the recognized keyword as metadata to the entry file. Further, the display control unit 342 counts the number of strokes constituting the entry content recorded in the entry file, and gives the counted number of strokes “51” to the entry file as metadata. Further, the display control means 342 has entered all of the entry contents recorded in the entry file with the electronic pen 1A having the pen ID “pen01” based on the pen ID information indicated by the entry information used to generate the entry file. Is recognized, and the number of persons involved “1” is given to the entry file as metadata.

  Here, a supplementary explanation will be given of the process for generating entry type information. The metadata association unit 341 refers to the pen ID and the user-defined information included in the entry information, so that the metadata association unit 341 is an entry file based on the entry information generated by the electronic pen 1F used by the teacher “Hanako”. It is determined whether the entry file is based on entry information generated by the electronic pens 1A to 1E to be used. When the metadata association unit 341 recognizes that the entry content recorded in the entry file is written by the teacher, the metadata association unit 341 sets entry type information to be given to the entry file to “2”. In addition, when the teacher enters a mark or comment indicating correctness on any of the answer sheets 2A to 2E written by the student using the electronic pen 1F, the metadata association unit 341 displays the pen ID included in the entry information. Is referred to the answer sheets 2A to 2E by the electronic pen 1F, and the answer sheets 2A to 2E written by the electronic pen 1F are referred to by referring to the entry file stored by the storage means 33. Recognizes that writing by the electronic pens 1A to 1E used by the students is already present. In this case, the metadata associating unit 341 adds entry type information “3” indicating that it is an entry of the teacher's comment for the entry by the student to the entry file as metadata.

  Further, when the metadata association unit 441 of the management server 4 receives the entry file recording the answer of “Taro” from the computer device 3B, information indicating the school name “AA school” to which the classroom B belongs is used as metadata. Append to the above entry file. Then, the metadata association unit 441 transmits the entry file to the cloud server 7.

  If the identification number assigned to each teacher exists instead of the metadata indicating “teacher name”, the metadata association unit 341 stores the identification number as metadata representing the identification information of the teacher. May be added. Similarly, if the identification number assigned to the school exists instead of the metadata indicating “school name”, the metadata association unit 441 uses the identification number as metadata representing the identification information of the educational institution. It may be added to the file.

[File Search]
Next, search processing for a search target file will be described with reference to FIGS. 17 and 18.

  FIG. 17 shows a display example of a file search screen displayed by the display means 36 of the computer device 3. The display control means 342 displays the file search screen shown in FIG. 17 on the display by receiving predetermined display information from the cloud server 7.

  On the file search screen, the display control unit 342 displays the first specification column 110 (110A to 110C) in the pull-down menu format for specifying the metadata type and the metadata type specified in the first specification column 110. A second designation field 111 (111A to 111C) for designating a specific condition for the above by text input and a search start designation button 112 are displayed.

  When the rightmost buttons 113A to 113C of the first designation field 110 are selected, the display control unit 342 sets the metadata type indicated by each item of the file DB in FIG. 13 based on the display information received from the cloud server 7. Display the corresponding menu selectable. Then, the display control means 342 displays the type of metadata corresponding to the menu designated by the mouse click operation or the like in the first designation column 110. In the example of FIG. 17, the display control unit 342 displays “school name” in the first designation column 110A and “teacher name” in the first designation column 110B based on the operation on the file search screen. Yes. Further, the display control means 342 causes the second designation field 111 to display information for specifically designating metadata for the metadata type designated in the first designation field 110 based on the text input. Yes. In the example of FIG. 17, the display control means 342 displays “AA school”, which is information for specifically specifying the “school name” displayed in the first designation field 110 </ b> A, in the second designation field 111 </ b> A. “Hanako”, which is information for specifically specifying the “teacher name” displayed in the first designation column 110A, is displayed in the second designation column 111B.

  When the display control unit 342 detects that the search start designation button 112 has been selected, the display control unit 342 generates file request information including metadata information designated in the first designation field 110 and the second designation field 111. , To the cloud server 7.

  FIG. 18 shows a display example of a search result screen displayed after the search start designation button 112 is selected in the example of FIG. The display control means 342 displays the search result screen shown in FIG. 18 on the display based on the display information received from the cloud server 7 after transmitting the file request information. The display control means 342 returns the display screen to the list display column 120 that displays a list of files having the metadata specified in the first specification column 110 and the second specification column 111, and the file search screen shown in FIG. A return button 121 and an additional condition specifying button 122 for specifying an additional condition related to metadata are displayed on the search result screen.

  First, when the file request information is received from the computer apparatus 3, the search unit 742 of the cloud server 7 refers to the file DB and extracts a file having metadata specified by the file request information. In the example of FIG. 17, since the metadata for the school name and the teacher name is specified, the search means 742 searches the file DB shown in FIG. 13 for a file having the metadata specified in the second specification field 111B. recognize. Then, the search means 742 generates display information for displaying the search result screen of FIG. 18 and transmits it to the computer apparatus 3. Then, the display control means 342 of the computer device 3 displays the search result screen shown in FIG. 18 based on the received display information.

  In the example of FIG. 18, the display control unit 342 displays metadata corresponding to each file that matches the search condition in the list display field 120 for each type, and a display button for downloading and displaying each file. 130 (130A to 130C) is displayed. When the display control unit 342 detects that an arbitrary display button 130 has been selected, the display control unit 342 transmits request information for a file corresponding to the selected display button 130 to the cloud server 7. In this case, the search unit 742 of the cloud server 7 extracts the file specified by the request information from the storage unit 73 and transmits the file to the requesting computer apparatus 3. Then, the display control unit 342 of the computer device 3 displays the file transmitted from the cloud server 7 on the display.

  When the return button 121 is selected, the display control unit 342 returns the display screen to the file search screen shown in FIG. In addition, when the additional condition designation button 122 is selected, the display control unit 342 further displays input fields corresponding to the first designation field 110 and the second designation field 111. Then, the display control means 342 extracts a file that matches the metadata information specified by the input in the input field from the file currently displayed in the list display field 120, and displays the extracted list of files in the list display field. 120 is displayed.

[Effects of this embodiment]
According to the embodiment described above, the cloud server 7 preferably manages the entry file and the learning material file so that the entry file and the learning material file can be searched by the metadata by storing the metadata in association with each of the entry file and the learning material file. Can do. Then, the computer apparatus 3 transmits the file request information including the metadata conditions specified by the user to the cloud server 7, thereby displaying a list of files that match the metadata conditions specified by the user. And a file arbitrarily selected by the user from the list can be downloaded from the cloud server 7 and displayed.

[Modification of this embodiment]
Next, a modification of this embodiment will be described. The following modifications may be applied in any combination to the above-described embodiment.

(Modification 1)
In the description of the above-described embodiment, the computer device 3, the management server 4, or the cloud server 7 assigns a predetermined type of metadata to the entry file or the teaching material file. Instead, an arbitrary computer existing in the network 6 may give a predetermined type of metadata to the entry file or the teaching material file. That is, the process for assigning metadata may be executed by any device that can communicate with the cloud server 7.

(Modification 2)
In the configuration example of FIG. 1, one cloud server 7 stores a file DB and a file registered in the file DB. Instead, a plurality of cloud servers 7 may store these information in a distributed manner. For example, the data management system 10 may include a server that stores the entry file, a server that stores the teaching material file, and a server that stores the file DB as the cloud server 7.

  Further, instead of the cloud server 7 storing the files registered in the file DB, the management server 4 and the computer device 3 may store these files. In this case, the management server 4 and the computer device 3 transmit the storage location information of these files and the metadata attached to the files to the cloud server 7 instead of transmitting the entry file and the teaching material file to the cloud server 7. To do. And the cloud server 7 memorize | stores file DB similarly to embodiment. When the cloud server 7 receives request information for downloading a file from an arbitrary device, the cloud server 7 stores the target file in accordance with the storage location information of the file stored in the file DB. 7 and the like, and transfer the file to the requesting device. Instead of transferring the file, the cloud server 7 may transmit an instruction signal indicating that the target file should be transmitted to the device that requested the file, to the management server 7 that stores the file.

(Modification 3)
In the example of FIG. 12B, the computer device 3 has given metadata to the entry file. Instead of this, the computer apparatus 3 may add metadata for each position coordinate information of the user stroke information constituting the entry file. Similarly, when the management server 4 and the cloud server 7 attach metadata to the entry file, the management server 4 and the cloud server 7 may attach metadata for each position coordinate information included in the user stroke information constituting the entry file.

(Modification 4)
In the above-described embodiment, the Anoto method is used for the electronic pen, the dot pattern (coded pattern), and the entry information, but the use of the Anoto method is not limited.

DESCRIPTION OF SYMBOLS 1 (1A-1E) ... Electronic pen 2 ... Entry 3 (3A-3C) ... Transfer apparatus 4 ... Management server 5A ... Display 5B ... Dot screen 6 ... Network 7 ... Cloud server 8 ... Base station 9 ... Wireless LAN router

Claims (10)

Character recognition means for performing character recognition on the entry content indicated by the data related to education;
Metadata association means for associating metadata obtained by character recognition with the data relating to the education ;
Storage means for storing data relating to education associated with metadata by the metadata association means so as to be searchable based on the metadata;
Have
The metadata associating means is a case where the data relating to the education indicates the answer content of the test, and the time required for the entry of the answer content in the data relating to the education is started from the start of the test. When the information indicating at least one of the time until the test or the end of writing of the answer content is associated as metadata , the selection of the button indicating the suspension of the test from the time is selected. The data management system according to claim 1, wherein the time for which the test has been suspended is subtracted and information indicating the time after the subtraction is associated with the data relating to the education as the metadata .   2. The data management system according to claim 1, wherein the metadata association unit associates, as the metadata, keyword information related to the entry content with the data relating to the education.   The metadata association unit associates at least one of information for identifying an educational institution related to the data and information for identifying a teacher as metadata with respect to the data relating to the education. 2. The data management system according to 2.   The data management system according to any one of claims 1 to 3, wherein the metadata association unit associates, as metadata, identification information of a teaching material related to the data with the data related to the education.   The data management system according to any one of claims 1 to 4, wherein the metadata association unit associates, as metadata, information indicating the type of entry content with the data related to education. The metadata association means, said calculating the number of strokes constituting the entry content, the information on the number of the strokes, any one of claims 1 to 5, characterized in that associated with data relating to the educational as metadata The data management system described in 1. The metadata associated means calculates the number of people involved in entry of the entry content, the information of the number, any one of claims 1 to 6, characterized in that associated with data relating to the educational as metadata The data management system described in 1. An input means for accepting input for specifying metadata;
Search means for searching for data relating to the education associated with the metadata specified by the input;
Display means for displaying data relating to the education searched by the search means;
The data management system according to any one of claims 1 to 7 , further comprising: The data management system according to any one of claims 1 to 8 , further comprising data generation means for generating data relating to the education based on entry information generated by an electronic pen. A program that causes a computer device to function as the metadata association unit according to any one of claims 1 to 9 .