JP2013055595A - Terminal device, content display system, program, data structure, and content distribution server - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal device capable of providing the newest information in information variable in time in accordance with the purpose of a content.SOLUTION: When displaying an electric content, a terminal device 1 embeds, in a part of the content to be displayed, sensing data acquired from a sensing server 3 and displays the content. The electronic content contains, within the electronic content, acquisition condition data including a temporal condition or a positional condition as indication of the content of required information. When receiving the acquisition condition data and providing the sensing data, the sensing server 3 determines the correlation between the received acquisition condition data and the collected sensing data, extracts optimal sensing data, and provides the extracted data to the terminal device 1.

Description

  The present invention relates to a terminal device that displays electronic content.

  Conventionally, electronic content is displayed as follows. For example, the system of Patent Document 1 captures an image of an aquarium fish, reads the name of the fish from a database, and synthesizes the image and the name to create a real-time picture book.

  The system of Patent Document 2 is to create a slide show by aggregating images taken from a plurality of imaging means in real time. The terminal updates the image file used for the slide show every time a new image is added.

  In order to reduce the communication load, the system of Patent Literature 3 determines which area of the updated image data is to be transmitted when transmitting an image and transmits the image.

JP 2011-60130 A JP 2009-303004 A JP 2006-246153 A

  None of the conventional systems provide information that can change over time. In addition, information providers cannot collect and provide information without providing information collection.

  An object of this invention is to provide the terminal device which can provide the newest information among the information which can change temporally according to the objective of a content.

The terminal device according to the present invention includes a storage unit that stores electronic content, a display unit that displays the content of the electronic content, a communication unit that performs data transmission and reception with an external server, and reads the electronic content from the storage unit, A control unit that displays the content of the content on a display unit, wherein the electronic content stored in the storage unit is a temporal condition or position of sensing data that is a result of sensing an object Including acquisition condition data including a visual condition, and the control unit receives a process of reading the acquisition condition data and displaying sensing data matching the acquisition condition data before displaying the electronic content on the display unit, The received sensing data is included in the contents of the electronic content and displayed on the display unit.
The electronic content in the present invention includes digitized and electronically recordable document data or a combination of document data and image data, video data, music data, or a program. This electronic content includes, for example, an electronic book and electronic signboard data. The electronic book in the present invention is a digital book that can be read by a personal computer, a personal digital assistant (PDA), a mobile phone, or the like. The major difference between an electronic book and a web page is that there is a concept of a page in an electronic book, and it is possible to set a table of contents consisting of page numbers or to turn the page. There is no concept of a page, and operations such as setting a table of contents and turning pages cannot be performed. The electronic signboard data is different from the electronic book in that the number of pages is only one page. The electronic signboard data is stored and displayed in a hardware storage unit called an electronic signboard.

The terminal device of the present invention displays the contents of electronic content including sensing data received from the outside. For example, an <IMG> tag in HTML is used to define a region in which sensing data should be embedded as an image in electronic content. The sensing data acquisition conditions are described using <TEXTARE> tags in HTML. In this case, the acquisition conditions include at least the information type of the sensing data, temporal conditions, and positional conditions. The main formats of e-books include EPUB, PDF, XMDF,. There is a book. In the present invention, description will be made mainly on acquisition and display of sensing data in electronic contents as an electronic book of EPUB3 which is the latest version of the EPUB format. However, this description is not limited to EPUB, and there are many parts that can be applied to other electronic book formats. This is because many electronic book formats support HTML.
For example, acquisition condition data shown in FIG. 4 described later is described in advance as HIDDEN attribute data as data in TEXTAREA described in an HTML file constituting the contents of an electronic book. The terminal device reads the acquisition condition data described in this way as an object by the JavaScript (registered trademark) program, processes it into a command parameter attached to the URL, and uses the “location.href” command to the sensing server 3. Can be transmitted (see FIG. 5). Details will be described later. Then, the external server extracts sensing data that matches the acquisition condition data, and prepares the extracted sensing data in a predetermined URL in the external server. The terminal device obtains what is prepared for the predetermined URL in the external server as image data from the address indicated by url indicated by src = “url” in the <IMG> tag shown in FIG. Is displayed on the display. Thereby, the sensing data is received as matching the acquisition condition data embedded in the electronic content. Accordingly, it is possible to provide real-time information on the object in accordance with the purpose of the content.

  The electronic content stored in the storage unit includes an event description serving as a trigger for reading out the acquisition condition data, and the control unit reads out the event description so that the electronic content is stored in the display unit. It is desirable to read out the acquisition condition data before displaying it.

  For example, the trigger event can be realized by extending an event handler that is included in the control unit and operates. If the electronic content is an advertisement to be displayed on an electronic signboard, you can add a program that detects the gaze detection event to the event handler. If the electronic content is an electronic book, a page near the page that displays the sensing data You can also implement an event handler that fires when an event is viewed. It is also easy to assemble a program that starts operation upon detection of an event by these event handlers with a JavaScript program and include the JavaScript program in the electronic content. In this case, unnecessary sensing data is not updated unnecessarily.

  In addition, when the electronic content is an electronic book, it is desirable that a predetermined page is browsed as a trigger. In an electronic book, an event is described in which a page near a page in which sensing data is to be embedded is browsed or a table of contents jumping to the page is clicked. Then, the acquisition condition data described on the page of the electronic book is read, sensing data that matches the condition is requested from the sensing server, and sensing data is acquired by the terminal device as a response from the sensing server.

  The terminal device may include a line-of-sight sensor, and the control unit may read the acquisition condition data when the line-of-sight sensor senses the line of sight.

  For example, when the terminal device is an electronic signboard installed at a station or the like, an image sensor for line-of-sight detection is mounted on the electronic signboard, and the line of sight of a person approaching the electronic signboard faces the electronic signboard. When detected, the acquisition condition data is read and sensing data is received.

  The acquisition condition data is transmitted to an external server connected to the terminal device, and the determination unit of the external server determines sensing data that matches the received acquisition condition data, and transmits the sensing data to the terminal device. .

  Note that the present invention can be realized by a program executed by the control unit of a terminal device including a storage unit, a display unit, a communication unit, and a control unit. The present invention can also be realized as a data structure of electronic content.

  According to the present invention, it is possible to provide the latest information among the information that can change with time in accordance with the purpose of the content.

It is a block diagram which shows the structure of a content display system. It is a figure which shows an example of the data structure of electronic content. It is a figure which shows the data flow between the terminal device 1 and the sensing server 3. FIG. It is a figure which shows the data structure of acquisition condition data. It is a figure which shows the example of a search command and a search parameter. It is a figure which shows the data structure of a provision contract database. It is a figure which shows the data structure of a use contract database. 3 is a flowchart showing the operation of the terminal device 1. 3 is a flowchart showing the operation of the sensing server 3. It is a figure which shows the application example in the case of implement | achieving a WEB page as electronic content. It is a figure which shows the application example of an electronic book. It is a figure which shows the application example of an electronic signboard.

  FIG. 1 is a block diagram showing the configuration of a content display system using the terminal device of the present invention. The content display system includes a terminal device (information processing device) 1 connected via the Internet 7, a content provider server 2, a sensing server 3, and a plurality of sensors (in the example of FIG. And).

  The control unit 11 of the terminal device 1 downloads electronic content from the content provider server 2 via the communication unit 12 and the Internet 7 and stores it in the content DB 14 that is a storage unit. The control unit 11 reads the electronic content from the content DB 14 and displays the content of the electronic content on the display unit 13.

  The sensing server 3 receives sensing data that is a result of sensing each object by the sensors via the communication unit 37 and the Internet 7 and stores the sensing data in the sensing data DB 36. The object is, for example, a tourist spot such as a hotel, a botanical garden, a temple, a restaurant, or the like. Examples of the sensor include a camera, a temperature sensor, and a humidity sensor.

  When displaying the content of the electronic content, the control unit 11 of the terminal device 1 embeds and displays the sensing data acquired from the sensing server 3 for a part of the displayed content. FIG. 2 shows an example of the data structure of electronic content. As shown in FIG. 2, the electronic content is composed of, for example, HTML data, and there is an HTML tag <IMG> that defines an area in which sensing data should be embedded as an image, and the tag indicates the location and size of the image. There are various options. FIG. 2 shows an example of a tag of HTML data, which is composed of an attribute name and an attribute item value. The control unit 11 executes a process for generating a search command and a search parameter for causing the sensing server 3 to search for sensing data, and transmits a sensing data request command to the sensing server 3. These conversion programs may be generally described by a JavaScript program or the like. As shown in FIG. 3, the electronic content includes the JavaScript program and image data that is displayed when sensing data cannot be received (or displayed provisionally until sensing data is received). Yes.

In order to show the sensing data in the electronic content, it is necessary to include acquisition condition data including a temporal condition and a positional condition of the sensing data in the electronic content. FIG. 4 shows an example of the data structure of sensing condition acquisition condition data. This acquisition condition data can also be realized as data embedded in advance as a default value of the HIDDEN attribute in TEXTAREA in the content described in HTML constituting the electronic content. The data in TEXTAREA can be referred to as an object in the JavaScript program by defining the name attribute in TEXTAREA.
Therefore, in the content described in HTML and the electronic content including the JavaScript program, the acquisition condition data shown in FIG. 4 can be manipulated by the JavaScript program. That is, the JavaScript program reads the acquisition condition data shown in FIG. 4 as an object from TEXTAREA in HTML, and uses the read acquisition condition data to synthesize a command character string in the format shown in FIG. Can easily be put in a column variable. The control unit 11 of the terminal device 1 can transmit an acquisition request command for sensing data including acquisition condition data to the sensing server 3 by executing the following command in the JavaScript program.
location.href = “URL1”;
This will be described in more detail. That is, each command parameter (search parameter) in the search command shown in FIG. 5 is described by the acquisition condition data shown in FIG. The acquisition condition data shown in FIG. 4 includes a tag name portion of the XML tag, <tag_name></tag_name>, and a tag value value surrounded by the tag name, and has the following general format.
<tag_name> value </ tag_name>
Using the acquisition condition part of FIG. 4 described in such a general format, the command parameter part shown in FIG. 5 is generated as follows.
tag_name = value
When such command parameters (search parameters) are connected in URL1, they are combined with “&”. As a result, the search parameters shown in FIG. 5 can be generated in the character string variable URL1. Then, the next command is executed using the generated character string variable of URL1.
location.href = “URL1”;
With reference to FIG. 3, the data flow between the terminal device 1 and the sensing server 3 and the operations of the terminal device 1 and the sensing server 3 will be described in more detail. In the description of the paragraph 0023, the description has been made up to the processing in which the control unit 11 reads the content data and transmits the search command and the search parameter via the communication unit 12 in FIG. Next, the determination unit 31 of the sensing server 3 receives the acquisition condition data via the communication unit 37, and provides the matching of the acquisition condition data and the sensing data usage contract and the acquisition condition data before providing the sensing data. Match the sensing data provision contract. Details will be described later (see paragraph 0032).
When there is sensing data that satisfies the above two matchings, the determination unit 31 may automatically generate HTML data including the sensing data and transmit the HTML data to the terminal device 1 using the HTTP protocol. Further, a method of converting the corresponding sensing data into image data and storing it in the display sensing data storage area 38 can be executed. In this case, the URL of the display sensing data storage area 38 is set to the same value as the url used in the Src = “url” option in the image display tag indicated by the <IMG> tag shown in FIG. Set to. By doing so, in the operation of the control unit 11 of the terminal device 1, what is described in the electronic content and processed as sensing data from the sensing server 3 by the function of the <IMG> tag shown in FIG. Will be displayed on the display unit 13 of the terminal device 1.

  The sensing server 3 collects data output from sensors installed in various places and data input by a person. For example, in the example of FIG. 1, four sensors 51 to 54 are installed in various places.

  The provision contract registration unit 34 of the sensing server 3 concludes a contract with the owner of these sensors, receives data provision from various sensors, and pays the consideration. The sensing data provision contract is concluded with the owners of various sensors online via the Internet 7. FIG. 6 shows the data structure of the sensing data provision contract. Sensing data provision contract data is stored in the sensing data provision contract DB 32. As shown in FIG. 6, the sensing data provision contract is concluded for each sensor ID. Each sensing data provision contract has contract conditions as shown in each data item.

  The sensor may measure temperature, humidity, illuminance, atmospheric pressure, acceleration, sound, etc., may be a surveillance camera that acquires video, or may be a portable terminal. A system having a plurality of sensors is also included. In the sensing data provision contract, restrictions on data that can provide sensing data, reliability, etc. are determined.

  In addition, it is desirable that the provided sensing data is added with the time, position, and the like when the data is acquired. When it is difficult to add the time and position, an intermediate node for adding the time and position is installed between the sensing server 3 and the sensor, or the additional function is added to the sensor. Regarding the provision conditions of sensing data, for example, if it is a video, there are no restrictions when the camera owner uses it, and when providing it to other users, consider privacy and confidential matters, Conditions such as hiding a part of the video, not providing part of the time, or limiting the provider may be described. Further, disclaimers regarding data provision, data reliability, and the like may be added.

  On the other hand, the usage contract registration unit 35 of the sensing server 3 concludes a contract with the users of the various sensors, provides the data of the various sensors to the users, and receives payment of the consideration. The sensing data use contract is concluded with each user online via the Internet 7. The user in this embodiment is a content provider. By concluding a usage contract, the content provider can provide the content without the need for the content provider to collect information for each location.

  Sensing data usage contract data is stored in the sensing data usage contract DB 33. FIG. 7 shows the data structure of the sensing data use contract. The sensing data use contract describes the name of the content provider who uses the sensing data, the application name, the name of the content, the consideration when using the sensing data, and the like.

  The sensing data use contract is referred to when the sensing server 3 receives the acquisition condition data. As shown in FIG. 4, the acquisition condition data includes the name of the content provider, the application name, the name of the content, the price per sensing, and the like. When receiving the acquisition condition data, the determination unit 31 first refers to the sensing data usage contract DB 33 and performs matching with the acquisition condition data. The matching between the sensing data use contract and the acquisition condition data is performed for each attribute item. Basically, the content provider name, application name, content name, and the like described in the acquisition condition data are matched when they are described in the sensing data use contract.

  When the matching between the sensing data use contract and the acquisition condition data is completed, the determination unit 31 next performs the matching between the sensing data provision contract and the acquisition condition data. As shown in FIG. 4, the acquisition condition data includes an acquisition condition data ID, a position / coordinate of a sensing target, an information type, an absolute time of sensing data generation, a relative time of sensing data generation, and a position difference of sensing data. An allowable value, an allowable value of the difference in time of occurrence of sensing data, and the like are included. When the determination unit 31 receives such acquisition condition data, the determination unit 31 refers to the sensing data provision contract DB 32 and performs matching with the acquisition condition data. The matching between the sensing data provision contract and the acquisition condition data is performed for each attribute item. Basically, the position and coordinates of the sensing target described in the acquisition condition data, the type of information, the absolute time of sensing data generation, the relative time of sensing data generation, the tolerance value of the sensing data position difference, and the generation of sensing data All the conditions such as the time difference tolerance are matched when they are described in the sensing data provision contract.

  For example, in the example of FIG. 4, the position and coordinates of the sensing target are set to (34.9854, 135.7577). That is, in this example, the latitude and longitude of Kyoto Station are set. In this case, the content has an intention to acquire and display information about Kyoto Station. Accordingly, the determination unit 31 of the sensing server 3 searches the data structure of the sensing data provision contract shown in FIG. 6 for a match that meets the condition, and if there is a match, the sensing data from the sensor. Is obtained from the sensing data DB 36 and provided to the terminal device 1. For example, in FIG. 6, since the sensor ID 5 matches the condition, data of the sensor ID 5 (video data captured by the camera) is provided to the terminal device 1.

  In this way, the sensing server 3 collates the conditions indicated in the sensing data provision contract with the conditions indicated in the acquisition condition data, and if they match and the physical sensor in the contract is operable, Data from the sensor specified by the physical sensor ID is provided to the terminal device 1 as sensing data corresponding to the acquisition condition data ID.

  The content provider (operator of the content provider server 2) concludes a sensing data usage contract with the operator of the sensing server 3 using the function of the usage contract registration unit 35. The concluded sensing data use contract is stored in the use contract DB 33. In addition, the sensor owner concludes a sensing data provision contract with the operator of the sensing server 3 using the function of the provision contract registration unit 34. The concluded sensing data provision contract is stored in the provision contract DB 32. The determination unit 31 matches the acquisition condition data received from the terminal device 1 with the sensing data provision contract in the provision contract DB 32 and the sensing data provision contract in the usage contract DB 33 for each attribute item. Then, as a result of matching, the determination unit 31 acquires sensing data that is a result of sensing a target by a sensor that satisfies a condition, and transmits the sensing data to the terminal device 1. The terminal device 1 embeds the acquired sensing data in the content and displays it according to the description of the electronic content. As a result, the content provider defines a partial area in the content provided by electronic content as an information provision area that changes in real time according to the sensing data, and the sensing data collected as the material is new information that satisfies the predetermined conditions. Can be provided as. Therefore, it is possible to provide information with high real-time property in electronic content that has conventionally only provided photographs and information created in the past.

  The data may be automatically transmitted from various sensors, but the provider may manually input each data item shown in FIG. In the case of manual input, there is a possibility that the expression content of each data item may vary, so it is desirable that the provider manually input by selecting from a plurality of predefined menus. . Also, depending on the sensor, for example, a GPS (Global Positioning System) mobile phone with a built-in camera, acquisition of position information indicated by latitude and longitude from the GPS, imaging of an image by the camera, and acquisition of the time of imaging In some cases, the captured image can be transmitted as a pair of position information and time information (hereinafter referred to as a GPS mobile phone). In this case, software for concluding a sensing data provision contract with the sensing server 3 is installed in the GPS mobile phone, and for example, a sensing data provision contract including the contents shown in the row of sensor ID = m in FIG. May be fastened. In this case, a description of “moving object” is entered in the position field of the sensing area. This indicates that the sensor does not exist at a fixed position indicated by a specific latitude / longitude, but is a movable sensor. If the sensor with sensor ID = m can be moved by a predetermined time to a position that can satisfy the conditions indicated by the acquisition condition data, the sensing data type, data amount, If conditions such as guaranteed accuracy and value are met, sensing data from the sensor with sensor ID = m may be acquired by the sensing server 3 and transmitted to the terminal device 1 that needs the sensing data. .

  Next, the operation of the content display system will be described with reference to a flowchart. FIG. 8 is a flowchart showing the operation of the terminal device 1. First, the control unit 11 of the terminal device 1 reads content from the content DB 14 and displays it on the display unit 13 (s11). The content is downloaded from the content provider server 2 periodically or according to an instruction from the user of the terminal device 1.

  The control unit 11 determines whether or not acquisition condition data is included in the read electronic content (s12). If the acquisition condition data is not included, the process returns to s11 to repeat reading and displaying of the content.

  When the acquisition condition data is included, the control unit 11 checks whether or not a trigger event is included (s13). When the trigger event is not included, the sensing data acquisition request command (that is, the search command and the search parameter) including the acquisition condition data described above is transmitted to the sensing server 3 (s14), and the trigger event is included. Only when the event condition is satisfied, the search command and the search parameter are transmitted (s15).

As shown in FIG. 4, the acquisition condition data may include a description of the trigger event. For example, the example of FIG. 4 includes a description of <trigger event> gaze detection </ trigger event>. This is an electronic signboard installed at a station or the like, and when the electronic content is an advertisement, an image sensor for line-of-sight detection is mounted on the terminal apparatus 1 that is an electronic signboard. When it is detected that the line of sight of the person approaching the electronic signboard is facing the electronic signboard, “Gaze detection = Yes”, and the acquisition condition data is transmitted.
The trigger event can be realized by extending an event handler that is included in the control unit 11 of the terminal device 1 and operates. You can add a program that detects gaze detection events to the event handler, or you can implement an event handler that generates an event when a page near the page that displays the sensing data is viewed. It is also easy to assemble a program that starts operation upon detection of an event by these event handlers with a JavaScript program and include the JavaScript program in the electronic content. For example, EPUB3, which is an electronic book format, supports both the JavaScript program and HTML, so that the contents described in this embodiment can be easily realized.

  In addition, when the terminal device 1 is a personal computer or a portable terminal and the electronic content is an electronic book, when a page near the page is browsed or a part of the table of contents jumping to the page is clicked, If the event is described in <Trigger Event> above, the other part of the acquisition condition data described in the page of the electronic book is transmitted to the sensing server 3 based on the occurrence of the trigger. .

  Thereafter, the control unit 11 determines whether or not sensing data is received within a predetermined time (s16). If not received within the predetermined time, the process returns to the process of s11, and the process is repeated from reading and displaying of the content. At this time, nothing is displayed in the area where the sensing data is to be embedded, or a default image or the like previously included in the electronic content is displayed.

  When receiving the sensing data within a predetermined time, the control unit 11 embeds the received sensing data in a predetermined area in the content and displays it (s17).

  Next, FIG. 9 is a flowchart showing the operation of the sensing server 3. First, the determination unit 31 of the sensing server 3 receives a sensing data acquisition request command (search command and search parameter) including acquisition condition data from the terminal device 1 (s31). The determination unit 31 refers to the usage contract DB 33 and performs matching with the received acquisition condition data. As shown in FIG. 4, the acquisition condition data describes conditions such as the content provider name, application name, content name, and the like. Further, as shown in FIG. 7, the sensing data use contract also describes conditions such as the name of the content provider, the application name, and the name of the content.

  When receiving the acquisition condition data, the determination unit 31 first refers to the sensing data use contract DB 33, and for each attribute item of the sensing data use contract and the acquisition condition data, all the conditions described in the acquisition condition data are detected. Determine whether it is described in the data usage agreement.

  When there is an unmatched item for each attribute item and matching is not completed, the determination unit 31 transmits sensing data non-applicability information to the terminal device 1 (s33).

  On the other hand, when the matching between the sensing data use contract and the acquisition condition data is completed, the determination unit 31 next performs the matching between the sensing data provision contract and the acquisition condition data, extracts the sensing data (s34), and extracts the data. The sensing data is stored in the display sensing data storage area 38 specified by the URL (s35). For example, in the example of the acquisition condition data in FIG. 4, since the position and coordinates of the sensing target are set to (34.9854,135.7577), the determination unit 31 uses the data structure of the sensing data provision contract shown in FIG. Since the sensor ID 5 matches the condition, the data of the sensor ID 5 (video data captured by the camera) is stored in the sensing data storage area 38 for display as sensing data. As a result, the control unit 11 of the terminal device 1 uses the URL prepared in the predetermined URL in the display sensing data storage area 38 as indicated by src = “url” in the <IMG> tag shown in FIG. Is acquired as image data from the address indicated by (2) and displayed on the display unit.

  Further, if the sensing data provision contract data does not include the contract data having the latitude and longitude indicated in the acquisition condition data as the sensing area, or the sensor may be broken, the determination unit 31 determines that the GPS It is also possible to adopt a mode in which a cellular phone, that is, a contractor of a sensing data provision contract serving as a “mobile body” is requested to transmit sensing data. For example, an email stating “Please send an image of Kyoto Station Concourse within 30 minutes” is sent to the subscriber. Here, among the providers who received the e-mail, the provider who was in the Kyoto Station Concourse took a picture of the Kyoto Station Concourse using a GPS mobile phone, and both the shooting date and time, latitude, and longitude information were detected by the sensing server 3. Send to. The data is preferably transmitted by a dedicated application for sensing data provision contract installed in the GPS mobile phone. In this case, the dedicated application automatically acquires the latitude and longitude information at the time of shooting and transmits the image data obtained by shooting to the sensing server 3. In this way, it is also possible to provide sensing data from a moving body.

  The determination part 31 will output a log, if it preserve | saves in the sensing data storage area 38 for a display (s36). The log is output and stored in a charging DB (not shown) in the sensing server 3, a charging server, or the like. The accumulated log indicates the usage history of the sensing data and is used for billing. That is, since the content provider is described as a user in the sensing data use contract, the billing server can perform billing according to the use history by referring to the log.

  Next, FIG. 10, FIG. 11, and FIG. 12 are diagrams showing application examples of the content display system of the present embodiment. FIG. 10 is a diagram illustrating an application example in the case of realizing a WEB page as electronic content. The thick arrows shown in FIGS. 10, 11, and 12 indicate the flow of data.

  In this case, the terminal device 1 is a general personal computer or a portable terminal. As shown in FIG. 10A, the terminal device 1 uses the WEB browser to access the URL of the content provider server 2 via the Internet 7 and receives the content. In this case, the content is HTML data (or data compatible with HTML) and can be displayed by a WEB browser. Then, the terminal device 1 transmits the acquisition condition data to the sensing server 3 via the Internet 7 based on the acquisition condition data and the trigger event as tag options included in the HTML data.

  Then, as shown in FIG. 10B, the sensing server 3 extracts the sensing data according to the received acquisition condition data, and acquires the sensing data (sensor 51 in the example of the figure) from the sensor (sensor 51 in the example of the figure). Are received each time via the Internet 7 or accumulated in the sensing data DB 36) are stored in the sensing data storage area 38 for display. The terminal device 1 receives the sensing data from the display sensing data storage area 38, and displays the sensing data in a predetermined area in the WEB browser. For example, in this example, the current actual captured video of Kyoto City, the current weather (for example, the actual text input by the sensor provider in Kyoto City, displayed as a weather image), the current actual image The temperature, current actual humidity, etc. are displayed.

  Content providers can provide local video and weather information only by concluding content usage contracts, without the need for the content provider to collect actual video and weather information in each region. become. In addition, the content provider can provide highly accurate information with higher real-time characteristics than information received from other weather information servers such as government agencies, etc., only by concluding a content use contract.

  Next, FIG. 11 is a diagram illustrating an application example of an electronic book. Also in this case, the terminal device 1 is a general personal computer or a portable terminal. As shown in FIG. 11A, the terminal device 1 receives content from the content provider server 2 via the Internet 7 using an electronic book browser. In this case, the content is an electronic book, but has a structure close to the above-described HTML data. Then, the terminal device 1 transmits the acquisition condition data to the sensing server 3 via the Internet 7 based on the acquisition condition data that is a tag option and the trigger event included in the electronic book. As described above, in the electronic book, an event such as a page near the page where the sensing data is to be embedded is browsed or a table of contents jumping to the page is clicked is described in the trigger event. deep.

  Then, as shown in FIG. 11 (B), the sensing server 3 extracts sensing data according to the received acquisition condition data, and acquires the sensing data (sensor 51 in the example of FIG. 11) from the sensor (sensor 51 in the example of FIG. 11B). Are received each time via the Internet 7 or accumulated in the sensing data DB 36) are stored in the sensing data storage area 38 for display. The terminal device 1 receives the sensing data from the display sensing data storage area 38 and displays the sensing data in a predetermined area in a predetermined page of the electronic book. Thereby, new information is displayed on the page of the electronic book. When the content is an electronic book, a series of operations in the terminal device 1 can be described as a comment described by one alt option of the options shown in FIG. It is also possible to equip an electronic book automatic composition engine with a function for incorporating such a description into an electronic book. There are various formats for electronic books, but it is possible to cope with various formats by describing condition acquisition data in these formats.

  Next, FIG. 12 is a diagram illustrating an application example of the electronic signboard. In this example, the terminal device 1 is a hanging advertisement in a train, an electronic signboard in a station waiting room, or an electronic signboard in various places in a station, using color electronic paper or LCD. As shown in FIG. 12A, the terminal device 1 receives content such as an advertisement from the content provider server 2 via the Internet 7 using a dedicated application. Also in this case, the content has a structure close to the above-described HTML data. Then, the terminal device 1 transmits the acquisition condition data to the sensing server 3 via the Internet 7 based on the acquisition condition data that is a tag option and the trigger event included in the content.

  As described above, in the electronic signboard, the description of “line-of-sight detection” is included as a trigger event, the image sensor for line-of-sight detection is mounted on the terminal device 1, and the line-of-sight of a person approaching the electronic signboard When it is detected that is facing the electronic signboard, “line-of-sight detection = Yes”, and acquisition condition data is transmitted.

  Then, as shown in FIG. 12B, the sensing server 3 extracts the sensing data according to the received acquisition condition data, and acquires the sensing data (sensor 51 in the example of the figure) from the sensor (sensor 51 in the example in the figure). Are received each time via the Internet 7 or accumulated in the sensing data DB 36) are stored in the sensing data storage area 38 for display. The terminal device 1 receives the sensing data from the sensing data storage area 38 for display, and displays the sensing data (moving image) on an area such as “Today's state” of XX hot spring. In this case, advertisements including real-time images such as sightseeing spots and shopping streets can be provided by providing videos taken by the cameras installed at sightseeing spots and the cameras of providers who have visited sightseeing spots as sensing data. It can be installed in a station or train.

DESCRIPTION OF SYMBOLS 1 ... Terminal device 2 ... Content provider server 3 ... Sensing server 7 ... Internet 11 ... Control part 12 ... Communication part 13 ... Display part 14 ... Content DB
31 ... Judgment part 32 ... Sensing data provision contract DB
33 ... Sensing data usage contract DB
34 ... Provision contract registration unit 35 ... Usage contract registration unit 36 ... Sensing data DB
37: Communication unit 51, 52, 53, 54 ... Sensor

Claims (13)

A storage unit for storing electronic content;
A display unit for displaying the contents of the electronic content;
A communication unit that transmits and receives data to and from an external server;
A control unit that reads out the electronic content from the storage unit and displays the content of the electronic content on the display unit;
A terminal device comprising:
The electronic content stored in the storage unit includes acquisition condition data including a temporal condition or a positional condition of sensing data, which is information that can change with time,
The control unit reads the acquisition condition data before displaying the electronic content on the display unit;
Sensing data matching the acquisition condition data is received, and the received sensing data is included in the contents of the electronic content and displayed on the display unit. The electronic content stored in the storage unit includes an event description serving as a trigger for reading the acquisition condition data,
The terminal device according to claim 1, wherein the control unit reads the acquisition condition data by reading the event description before displaying the electronic content on the display unit.   The terminal device according to claim 2, wherein the electronic content stored in the storage unit is an electronic book, and browsing a predetermined page is used as a trigger for reading the acquisition condition data. The terminal device includes a gaze sensor.
The terminal device according to claim 1, wherein the control unit reads the acquisition condition data when the line-of-sight detection sensor senses the line of sight. A content display system comprising a terminal device and an external server connected to the terminal device,
The terminal device
A storage unit for storing electronic content;
A display unit for displaying the contents of the electronic content;
A communication unit that transmits and receives data to and from an external server;
A controller that reads out the electronic content from the storage unit and causes the display unit to display details of the electronic content;
The electronic content stored in the storage unit includes acquisition condition data including a temporal condition or a positional condition of sensing data, which is information that can change with time,
The control unit reads the acquisition condition data before displaying the electronic content on the display unit, transmits the acquisition condition data to the external server,
The external server includes a communication unit that receives the acquisition condition data;
Determining sensing data matching the acquisition condition data, and transmitting the sensing data to the terminal device;
With
The control unit of the terminal device receives sensing data that matches the acquisition condition data, and includes the received sensing data in the contents of the electronic content and causes the display unit to display the content display system. A storage unit for storing electronic content;
A display unit for displaying the contents of the electronic content;
A communication unit that transmits and receives data to and from an external server;
A control unit that reads out the electronic content from the storage unit and displays the content of the electronic content on the display unit;
A program executed by the control unit of a terminal device comprising:
The electronic content stored in the storage unit includes acquisition condition data including a temporal condition or a positional condition of sensing data, which is information that can change with time,
A process of reading the acquisition condition data before displaying the electronic content on the display unit in the control unit;
A program that receives sensing data that matches the acquisition condition data and causes the display unit to display the received sensing data in the contents of the electronic content. The electronic content stored in the storage unit includes an event description serving as a trigger for reading the acquisition condition data,
The program according to claim 6, wherein the acquisition condition data is read before the electronic content is displayed on the display unit by causing the control unit to read the event description.   8. The program according to claim 7, wherein the electronic content stored in the storage unit is an electronic book, and browsing of a predetermined page is used as a trigger for reading the acquisition condition data. The terminal device includes a gaze sensor.
The program according to claim 6 or 7, wherein the control unit causes the acquisition condition data to be read when the gaze is sensed by the gaze sensor. A data structure of electronic content read to the information processing device,
Sensing data that is information that can change over time, acquisition condition data that includes temporal conditions and positional conditions, an event description that triggers reading of the acquisition condition data, and the type of information of the sensing data Including
A process of reading the acquisition condition data before displaying the electronic content on the display unit in the information processing apparatus;
A data structure including a description for executing processing for displaying sensing data that matches the acquisition condition data included in the contents of the electronic content.   11. The data structure according to claim 10, wherein the information processing apparatus reads the event description and reads the acquisition condition data before displaying the electronic content on the display unit.   The data structure according to claim 11, wherein the electronic content is an electronic book and a predetermined page is viewed as a trigger for reading the acquisition condition data. A content distribution server that distributes electronic content including acquisition condition data including temporal conditions or positional conditions of sensing data, which is information that can change over time,
The electronic content is a process of reading the acquisition condition data before displaying the electronic content on a display unit on an information processing apparatus that receives distribution;
A content distribution server, comprising: a description for performing processing for displaying sensing data that matches the acquisition condition data included in the contents of the electronic content.