Recording device, information provision device, information provision method

Abstract

We provide a recording device that enables the provision of video suitable for various applications. [Solution] In the information providing device 10, the recording data collection unit 81 collects recording data including video, date and time information of the date and time of capture, and location information of the location where the image was captured. The message information collection unit 82 collects message information related to the recording data that has been posted on SNS, based on the date and time information and location information of the recording data. The determination unit 83 determines a map attribute that indicates a map for a specific purpose to which the recording data is mapped, based on the words contained in the message information related to the recording data. The storage unit 90 stores the recording data, message information, and map attributes in association. When the reception unit 84 receives a request for the provision of recording data, the provision unit 85 retrieves the recording data associated with the map attribute included in the request and the message information associated with the recording data from the storage unit 90 and provides them to the requester.

Description

Technical Field

[0006]

[0001] The present invention relates to the technology of video provision.

Background Art

[0002] A system for collecting recorded data of videos recorded by a photographing device such as a drive recorder via a communication network is known.

[0003] For example, there is known a data collection system in which a photographing device for which conditions for photographing image data to be collected are preset transmits the photographing image data that satisfies the conditions to a data collection device, enabling rapid collection of desired data (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As one mode of using the collected recorded data, location information of the location where the video represented by the recorded data was imaged is associated with the recorded data, and the video imaged at the location of the location information is provided to the user according to the designation of the location information by the user.

[0006] However, the video provided by the above-described mode may not be suitable for the user's use. When such a video is provided, the user will have an impression such as "I was shown a boring video."

[0007] In one aspect, an object of the present invention is to enable provision of a video suitable for use.

Means for Solving the Problems

[0008] An information providing device, one aspect of this disclosure, comprises a video recording data collection unit, a message information collection unit, a determination unit, a storage unit, a reception unit, and a provision unit. The video recording data collection unit collects video recording data including video, date and time information indicating the date and time the video was captured, and location information indicating the location where the video was captured. The message information collection unit collects message information posted to social networking services (SNS) that is related to the video recording data, based on the date and time information and location information contained in the video recording data. The determination unit determines map attributes for the video recording data, which indicate application-specific maps to which the video recording data is mapped, based on words contained in the message information related to the video recording data. The storage unit stores the video recording data and the map attributes for the video recording data in association. The reception unit receives requests for the provision of video recording data, which include map attributes. The provision unit, in response to receiving the request, retrieves the video recording data associated with the map attributes included in the request from the storage unit and provides it to the requester. [Effects of the Invention]

[0009] In one aspect, the present invention has the effect of enabling the provision of images suitable for a particular application. [Brief explanation of the drawing]

[0010] [Figure 1] This diagram shows an example of the configuration of an information provision system. [Figure 2] This diagram shows a detailed configuration example of an information provision device. [Figure 3] This diagram shows an example of the data structure of recorded data. [Figure 4] This diagram shows an example of the data structure of message information. [Figure 5] This diagram shows an example of how a crime prevention and neighborhood watch map is displayed. [Figure 6] This is a diagram showing an example of how the navigation map is displayed. [Figure 7] It is a diagram showing an example of a map attribute determination table. [Figure 8] It is a diagram showing a first example of the data structure of a recording data request. [Figure 9] It is a diagram showing an example of the hardware configuration of a computer. [Figure 10] It is a flowchart showing an example of the processing content of collection processing. [Figure 11] It is a flowchart showing an example of the processing content of map attribute determination processing. [Figure 12] It is a flowchart showing a first example of the processing content of recording data providing processing. [Figure 13] It is a flowchart showing the processing content of the changed part of map attribute determination processing. [Figure 14] It is a diagram showing a second example of the data structure of a recording data request. [Figure 15] It is a flowchart showing a second example of the processing content of recording data providing processing.

Mode for Carrying Out the Invention

[0011] Hereinafter, embodiments will be described in detail while referring to the drawings.

[0012] FIG. 1 shows a configuration example of the information providing system 1.

[0013] The information providing system 1 includes an information providing device 10 and a plurality of recording devices 20. Various data can be exchanged between each of the information providing device 10 and the recording device 20 via a communication network 30. Also, the information providing device 10 can exchange various data with a mobile terminal 40 via a communication line not shown, and further, can exchange various data with a social networking service (SNS) server 50 as well.

[0014] A plurality of recording devices 20 are mounted one by one on each of a plurality of vehicles 60. The recording device 20 stores the recording data of the video 21 (road live video 21-1) around the vehicle 60 captured in the vehicle 60 in a storage device. The recording device 20 includes a clock for obtaining date and time information indicating the date and time when the video 21 was captured, and a position detection device such as a GPS (Global Positioning System) device for obtaining position information indicating the position of the place where the video 21 was captured. The recording device 20 adds the date and time information and the position information about the video 21 to the recording data of the video 21 and stores it.

[0015] In this embodiment, the recording device 20 is provided with a video providing instruction button as one of the input units 23. The video providing instruction button is pressed by the occupant of the vehicle 60 when capturing the video 21 of a subject of interest. Such subjects include, for example, traffic obstacles such as road congestion, road flooding, road closures, traffic accidents, roadside fires, etc., people with unnatural costumes or behaviors, events such as road live shows or street performances, etc., but are not limited thereto.

[0016] The recording device 20 sends the recording data about the video 21 of the subject of interest recorded during the period until a predetermined time has elapsed after the pressing operation of the video providing instruction button to the information providing device 10. The length of the recording time of the video represented by the recording data to be sent may be freely set. Also, the sending of the recording data to the information providing device 10 may be performed immediately after the recording ends, may be performed after a predetermined time has elapsed after the recording ends, or may be performed in response to a request for sending the recording data from the information providing device 10. [[ID=**10**]]

[0017] [[ID=**11**]] The information providing device 10 collects video recording data 21 sent from each of the multiple recording devices 20, and also collects message information related to the collected recording data from the SNS server 50. The information providing device 10 determines the attributes of the recording data by analyzing the collected message information. Furthermore, when the information providing device 10 receives a request for recording data, including the specification of attributes, from the mobile terminal 40, it provides the recording data having the specified attributes to the mobile terminal 40.

[0018] The mobile terminal 40 is, for example, a smartphone carried by the user or a tablet device installed in a vehicle in which the user is riding. The mobile terminal 40 plays back recorded data, including attribute specifications, provided by the information provision device 10 and displays the video 21. At this time, the mobile terminal 40 maps the location of the imaged place onto a usage-specific map 41 (event map 41-1) identified by the attributes specified in the recorded data and displays the video 21 (street live video 21-1).

[0019] The configuration of the information providing device 10 will be explained in more detail. Figure 2 shows a detailed example of the configuration of the information providing device 10.

[0020] The information providing device 10 includes a communication unit 70, a control unit 80, and a storage unit 90.

[0021] The communication unit 70 connects to the communication network 30 and exchanges various types of data with each of the multiple recording devices 20. The communication unit 70 also connects to a communication line (not shown) and exchanges various types of data with the mobile terminal 40. Furthermore, the communication unit 70 also exchanges various types of data with the SNS server 50.

[0022] The control unit 80 includes a recording data collection unit 81, a message information collection unit 82, a decision unit 83, a reception unit 84, and a provision unit 85.

[0023] The recording data collection unit 81 collects the video recording data 21 that has been sent from each of the multiple recording devices 20 and received by the communication unit 70.

[0024] Figure 3 shows an example of the data structure of recorded data, which is one of the various types of data sent from the recording device 20. The recorded data is composed of video data representing the video 21, associated with recorded data identification information, date and time information, and location information.

[0025] The recording data identification information is the information that identifies each recording data.

[0026] The date and time information and location information indicate the date and time when the video 21 was captured and the location where the video 21 was captured, respectively.

[0027] Let's return to the explanation of Figure 2.

[0028] The message information collection unit 82 collects message information related to the recorded data collected by the recorded data collection unit 81. The message information is information about messages posted on social networking services (SNS), such as tweets posted on Twitter (registered trademark), which is operated by Twitter, Inc. The message information is stored and managed on the SNS server 50.

[0029] The message information collection unit 82 collects message information related to the recorded data from the SNS server 50 based on the date and time information and location information contained in the recorded data.

[0030] Figure 4 shows an example of the data structure of message information sent from the SNS server 50. The recorded data consists of a message body, which is text data, associated with message identification information, posting date and time, posting location, and poster information.

[0031] Message identification information is the information that identifies each message.

[0032] The posting date and location indicate the time and place where the message was posted, respectively.

[0033] Poster information is information about the person who posted the message, and includes attribute information about the poster, such as their name, gender, and age.

[0034] Let's return to the explanation of Figure 2.

[0035] The determination unit 83 determines the map attributes of the recorded data collected by the recorded data collection unit 81. Map attributes are attributes that indicate the application-specific map 41 on which the recorded data is mapped. The application-specific map 41 is a map on which information presumed to be related to the intended use of the map is mapped to the locations associated with that information.

[0036] Figure 1 shows an example of the display of the event map 41-1 shown on the display unit of the mobile terminal 40. The event map 41-1 is an example of the usage-specific map 41, and shows the locations where various events such as concerts, live performances, and street performances are held. This is a map with locations mapped. Street live video 21-1 is mapped onto this event map 41-1. Street live video 21-1 is video 21, which is represented by one of the recorded data collected by the recorded data collection unit 81. The recorded data of street live video 21-1 is assigned the map attribute "event" by the determination unit 83.

[0037] This section describes other examples of maps categorized by purpose (41).

[0038] Figure 5 shows an example of the display of the crime prevention and monitoring map 41-2. The crime prevention and monitoring map 41-2 is also an example of a map 41 for specific uses. The crime prevention and monitoring map 41-2 is a map suitable for crime prevention and monitoring children and the elderly. Person video 21-2 is mapped onto this crime prevention and monitoring map 41-2. Person video 21-2 is also a video 21 represented by one of the recorded data collected by the recorded data collection unit 81. The recorded data of person video 21-2 is assigned the map attribute "monitoring" by the determination unit 83.

[0039] Figure 6 shows an example of the display of the navigation map 41-3. The navigation map 41-3 is also an example of a map 41 for specific purposes. The navigation map 41-3 is a map that provides various traffic information to car drivers. Accident video 21-3 is mapped onto this navigation map 41-3. Accident video 21-3 is also video 21 represented by one of the recorded data collected by the recorded data collection unit 81. The recorded data of accident video 21-3 is assigned the map attribute "Navigation" by the determination unit 83.

[0040] The determination of map attributes by the determination unit 83 is performed based on words contained in message information related to the recorded data to which the map attribute is associated. More specifically, the determination unit 83 refers to a pre-prepared map attribute determination table and determines the map attribute for the recorded data to which words used in the message information related to the recorded data are associated in the map attribute determination table.

[0041] An example of a map attribute determination table is shown in Figure 7. In this example, the words "traffic jam," "flooding," "flood," "earthquake," "tsunami," "volcanic eruption," "accident," "fire," and "hit by car" are registered and associated with the map attribute "navigation." Additionally, the words "wandering," "elderly," and "commuting to school" are registered and associated with the map attribute "watchful eye," while the words "molester," "attacked," "suspicious person," "indecent exposure," "violent assailant," "stabbed," and "pervert" are registered and associated with the map attribute "crime prevention." Furthermore, the words "street performance" and "location scouting" are registered and associated with the map attribute "event."

[0042] The decision unit 83 first extracts words from the message body contained in the message information. For example, morphological analysis techniques are used for this word extraction.

[0043] The map attribute determination table should be stored in advance, for example, in the memory unit 90.

[0044] Next, the determination unit 83 determines the map attributes for the recorded data based on the map attributes associated with the words registered in the map attribute determination table among the words extracted from the message information related to the recorded data.

[0045] Note that a single recorded data file may not be assigned only one map attribute. For example, if multiple words extracted from message information are associated with multiple different map attributes in the map attribute determination table, the determination unit 83 will determine those multiple map attributes for the recorded data file associated with the message information. Also, if multiple message information files are collected for a single recorded data file, the determination unit 83 will determine the map attributes for that recorded data file that are associated with words registered in the table among the words extracted from each of the multiple message information files.

[0046] Furthermore, if multiple message pieces are collected for a single recording, the determination unit 83 may determine the map attributes for that recording based on words contained in two or more of the collected message pieces. For example, consider a case where three message pieces are collected for a single recording, and the word "traffic jam" is extracted from only one of them, while the word "street performance" is extracted from two of them. In this case, the determination unit 83 may use "street performance" instead of "traffic jam" and determine the "event" associated with "street performance" in the map attribute determination table illustrated in Figure 7 as the map attribute for that single recording.

[0047] Furthermore, the recorded video data collected by the recorded video data collection unit 81, the message information related to the recorded video data collected by the message information collection unit 82, and the map attributes for the recorded video data determined by the determination unit 83 are associated with each other and stored in the storage unit 90.

[0048] The reception unit 84 receives requests for recording data from the mobile terminal 40.

[0049] Figure 8 shows a first example of the data structure of a recording data request sent from the mobile terminal 40 for this request. In this example, predetermined data indicating that the data column is a "recording data request" is placed at the beginning, followed by the following data: "request destination identifier," "request source identifier," "map attribute," "target date and time," and "target location."

[0050] The "request destination identifier" is an identifier that identifies the information providing device 10, which is the recipient of the recording data request, and the "request source identifier" is an identifier that identifies the mobile terminal 40, which is the source of the recording data request.

[0051] "Map attributes" are information that identifies the map attributes associated with the recorded data that is the subject of the request.

[0052] The "target date and time" is information used to set conditions for the date and time when the video 21 to be mapped to the usage-specific map 41 was captured, and is date and time information used to set conditions for the date and time information in the recorded data that is the subject of the request. For example, this "target date and time" may be set to information indicating the date and time when the mobile terminal 40 sent the recorded data request. Alternatively, information representing the date and time specified by the user of the mobile terminal 40 may be set as the "target date and time".

[0053] The "target location" is information used to set conditions for the location of the image capture site of the video 21 to be mapped on the application-specific map 41, and is location information used to set conditions for the location information in the recorded data that is the subject of the request. The "target date and time" is set to information indicating the location of the place where the mobile terminal 40 sent the recorded data request, obtained by a location detection device such as a GPS device installed in the mobile terminal 40. Alternatively, information representing the location of a place specified by the user of the mobile terminal 40, for example by tapping on a map displayed on the mobile terminal 40, may be set as the "target location".

[0054] When the mobile terminal 40 receives a request from a user to display a map 41 for specific uses, it sends a recording data request to the information provider 10 containing information that identifies the map attributes of the requested map 41 for specific uses. For example, if a request to display an event map 41-1 is received, a recording data request containing information that identifies "event" as a map attribute is sent. Also, for example, if a request to display a crime prevention / monitoring map 41-2 is received, a recording data request containing information that identifies "monitoring" or "crime prevention" as a map attribute is sent. Alternatively, for example, if a request to display a navigation map 41-3 is received, a recording data request containing information that identifies "navigation" as a map attribute is sent. The reception unit 84 receives such recording data requests.

[0055] In response to receiving a request for recording data, the provision unit 85 retrieves the recording data associated with the map attributes included in the request and the message information associated with the recording data from the storage unit 90 and provides them to the mobile terminal 40 that made the request.

[0056] When the mobile terminal 40 receives recorded data, it maps the video 21 represented in the recorded data to the location indicated by the location information of the recorded data on a map displayed based on map data provided by a map server (not shown). In this way, the mobile terminal 40 provides the user with a map 41 for specific purposes that corresponds to the display request received from the user.

[0057] The information provision device 10 is configured as described above and provides video 21 suitable for the user's purpose.

[0058] The information providing device 10 may also be configured using a computer with a combination of software.

[0059] Figure 9 shows an example of the hardware configuration of computer 100.

[0060] Computer 100 includes, for example, a processor 101, memory 102, storage device 103, reader 104, communication interface 106, and input / output interface 107 as its components. These components are connected via a data bus 108, allowing them to exchange data with each other.

[0061] The processor 101 may be, for example, a single processor, a multi-processor, or a multi-core processor. The processor 101 uses the memory 102 to execute a program that describes the procedures for each of the recording data acquisition process and the recording data provision process, which will be described later, thereby providing the functions of the control unit 80.

[0062] Memory 102 is, for example, a semiconductor memory, and includes a RAM area and a ROM area. RAM stands for Random Access Memory, and ROM stands for Read Only Memory.

[0063] The storage device 103 is, for example, a semiconductor memory such as a hard disk or flash memory, or an external storage device. When the information providing device 10 is configured using a computer 100, the storage device 103 provides the functions of the storage unit 90.

[0064] The reader 104 accesses the removable storage medium 105 according to instructions from the processor 101. The removable storage medium 105 can be implemented as, for example, a semiconductor device (such as a USB memory stick), a medium in which information is input / output by magnetic action (such as a magnetic disk), or a medium in which information is input / output by optical action (such as a CD-ROM or DVD). Note that USB is an abbreviation for Universal Serial Bus. CD is an abbreviation for Compact Disc. DVD is an abbreviation for Digital Versatile Disk.

[0065] The communication interface 106 transmits and receives data via various communication lines, for example, in accordance with instructions from the processor 101. When the information providing device 10 is configured using the computer 100, the communication interface 106 provides the functions of the communication unit 70.

[0066] The input / output interface 107 provides an interface with input devices such as a keyboard, mouse, button switch, or touch panel. The input / output interface 107 also provides an interface with output devices such as a display device or audio output device.

[0067] The program executed by the processor 101 of this computer 100 is provided, for example, in the following form.

[0068] (1) Pre-installed in storage device 103. (2) Provided via removable storage medium 105. (3) Provided from a program server or the like to a communication interface 106 via a communication network 30 or the like.

[0069] The hardware configuration of computer 100 is illustrative, and the embodiments are not limited thereto. For example, some or all of the functions of the above-mentioned functional units may be implemented as hardware such as FPGAs and SoCs. FPGA stands for Field Programmable Gate Array. is an abbreviation for System-on-a-chip.

[0070] Next, we will explain the various processes performed by the control unit 80 of the information providing device 10.

[0071] Furthermore, when configuring the information provision device 10 by combining software with the computer 100 shown in Figure 9, the information processing program describing the processes described below should be executed by the processor 101.

[0072] First, let's explain the data collection process. The data collection process involves collecting recorded video data and message information, and determining map attributes for the collected message information.

[0073] Figure 10 is a flowchart showing an example of the processing content of the data collection process. Of the processes shown in Figure 10, processes S101 and S102 are performed by the recording data collection unit 81, and processes S103 to S107 are performed by the message information collection unit 82. In addition, process S108 is performed by the determination unit 83.

[0074] When the process shown in Figure 10 begins, first, in S101, a process is performed to determine whether the recording data transmitted from the recording device 20 has been received by the communication unit 70. If this determination process determines that the recording data has been received (the determination result is YES), the process proceeds to S102. On the other hand, if this determination process determines that the recording data has not been received (the determination result is NO), the process in S101 is repeated until it is determined that the recording data has been received.

[0075] In S102, the process of saving the recorded data received by the communication unit 70 to the storage unit 90 is performed.

[0076] In S103, the system performs a process to obtain date and time information and location information from the received recording data.

[0077] In S104, the search period and search area are set based on the date and time information and location information obtained through the processing in S103.

[0078] The search period and search area represent the conditions for the message information to be collected, and each represents the conditions regarding the posting date and time and posting location included in the message information. Here, message information whose posting date and time falls within the search period and whose posting location falls within the search area will be collected.

[0079] In the S104 process, a period of time within a predetermined time before and after the date and time information is set as the search target period, and locations within a predetermined distance from the location information are set as the search target area. Therefore, message information posted on SNS at a posting location where the distance from the location indicated by the location information included in the recording data is within the predetermined distance is collected, at a posting date and time where the time difference between the posting date and time information included in the recording data is within the predetermined time.

[0080] In S105, a message information retrieval request is sent to the SNS server 50, which includes information on the search target period and search target area set by the processing in S104.

[0081] Upon receiving a message information retrieval request, the SNS server 50 searches for message information that satisfies the search period and search area conditions included in the request, and then sends the resulting message information to the information providing device 10.

[0082] In S106, processing is performed to collect message information that has been sent in response to the message information retrieval request sent in the processing of S104 and received by the communication unit 70. The collected message information is treated as message information related to the recorded data that was determined to have been received in the processing of S101.

[0083] In S107, the message information collected in the process of S106 is stored in the storage unit 90 in association with the recorded data saved in the process of S102. For example, to manage the association between recorded data and message information, a management table may be created that associates identification information for recorded data with identification information for message information, and this table may be stored in the storage unit 90.

[0084] In S108, map attribute determination processing is performed. This process determines the map attributes of the recorded data that was determined to have been received by the processing in S101, using the message information related to the recorded data collected by the processing in S106. Details of this map attribute determination processing will be described later.

[0085] Once processing in S108 is complete, processing of the recorded data that was determined to have been received by processing in S101 is finished. After that, processing returns to S101 to determine whether or not new recorded data has been received.

[0086] The process described above constitutes the data collection process.

[0087] Next, we will explain the map attribute determination process, which is process S108 in Figure 10. Figure 11 is a flowchart showing an example of the processing content of the map attribute determination process.

[0088] When the process in Figure 11 begins, first, in S111, a process is performed to determine whether multiple message information was collected by the process in S106 in Figure 10, which was performed immediately before the start of this process. If this determination process determines that multiple message information was collected (the determination result is YES), the process proceeds to S113. On the other hand, if this determination process determines that only one message information was collected (the determination result is No), the process proceeds to S112.

[0089] In S112, a process is performed to extract words from the message information collected by the process in S106 in Figure 10. After this process in S112, the process proceeds to S115.

[0090] Meanwhile, in S113, a process is performed to extract words from each of the multiple message information collected by the process in S106 in Figure 10.

[0091] In addition, in processes S112 and S113, for example, morphological analysis is performed on the message body contained in the message information to extract words.

[0092] Following the processing in S113, in S114, a process is performed to extract words from the extracted words that were included in two or more message pieces.

[0093] In S115, the system refers to the map attribute determination table to identify words registered in the table from among the words extracted by the processing in S112 or S114, and then retrieves the map attribute associated with the identified word in the table. The map attribute obtained through this process is determined to be the map attribute for the recorded data that was determined to have been received by the processing in 101 of Figure 10.

[0094] In S116, the map attributes acquired in the process of S115 are stored in the storage unit 90, corresponding to the recorded video data saved in the process of S102 in Figure 10. Alternatively, the aforementioned management table, used for managing the correspondence between recorded video data and message information, may also be used to manage the correspondence between recorded video data and map attributes.

[0095] Once the S116 process is complete, the map attribute determination process ends and the process returns to the data collection process shown in Figure 10.

[0096] The process described above constitutes the map attribute determination process.

[0097] Next, the recording data provision process will be described. The recording data provision process is the process of providing the requester with the recording data to which the map attribute is associated, along with message information related to the recording data, in response to a recording data request in which the map attribute has been specified.

[0098] Figure 12 is a flowchart showing the first example of the processing content of the recorded data provision process. Of the processes shown in Figure 12, processes S201 and S202 are performed by the receiving unit 84, and processes S203 to S207 are performed by the providing unit 85.

[0099] When the process shown in Figure 12 begins, first, in S201, a process is performed to determine whether the recording data request transmitted from the mobile terminal 40 has been received by the communication unit 70. If this determination process determines that the recording data request has been received (the determination result is YES), the process proceeds to S202. On the other hand, if this determination process determines that the recording data request has not been received (the determination result is NO), the process in S201 is repeated until it is determined that the recording data request has been received.

[0100] Next, in S202, the system receives the recording data request received by the communication unit 70 and performs the process of acquiring the map attributes, target date and time, and target location information included in the recording data request.

[0101] Next, in S203, the process of setting the extraction conditions for the recorded data to be provided to the requester of the recorded data request is performed using the target date and time and target location information obtained through the processing in S202.

[0102] In the S203 process, dates and times up to a predetermined period prior to the date and time indicated by the target date and time are set as the extraction conditions for recorded data regarding date and time information. Alternatively, dates and times within a predetermined period, with the date and time indicated by the target date and time being the midpoint of that period, may also be set as the extraction conditions for recorded data regarding date and time information. Furthermore, a predetermined period may be set for each map attribute, and the period determined for the map attribute obtained by the S202 process may be used to set the extraction conditions for recorded data regarding date and time information.

[0103] Furthermore, in this 203 process, locations within a predetermined distance from the location indicated as the target location are set as the extraction condition for recording data regarding location information. Alternatively, distances may be predetermined for each map attribute, and the distances determined for the map attributes obtained by the S202 process may be used to set the extraction condition for recording data regarding location information.

[0104] Next, in S204, the storage unit 90 performs a process to identify the recorded data that is associated with the map attributes obtained through the processing in S202.

[0105] Next, in S205, the process of extracting recording data that matches the extraction conditions for both date and time information and location information set in the process of S203 is performed in the process of S204, and reading it from the storage unit 90.

[0106] Next, in S206, the storage unit 90 reads and acquires message information associated with the recorded data extracted by the processing in S205.

[0107] Next, in S207, the communication unit 70 is controlled to send the recorded video data acquired in the processing of S205 and the message information acquired in the processing of S206 to the mobile terminal 40, which is the source of the recorded video data request received in the processing of S202. Upon receiving this recorded video data, the mobile terminal 40 displays the video 21 represented by the recorded video data, mapped to the location indicated by the location information of the recorded video data on a map displayed based on map data provided by a map server (not shown).

[0108] After completing the processing in S207, the process of providing the recording data corresponding to the recording data request that was determined to have been received by the processing in S201 is completed. Then, the process returns to S201 to determine whether or not a new recording data request has been received.

[0109] The process described above is the first example of the process for providing recorded data.

[0110] The information provision device 10 performs the data collection process and recorded data provision process described above, thereby providing the user with video 21 suitable for their intended use, and enabling the display of the usage-specific map 41, on which the video 21 is mapped, on the mobile terminal 40.

[0111] Furthermore, the video 21 provided to the user via the mobile terminal 40 may be made not only suitable for its intended use, but also suitable for the user's attributes (such as gender and age).

[0112] For example, the aforementioned event map 41-1 is a map 41 categorized by purpose that maps the locations of various events. Here, for example, an event map 41-1 for men or for people in their 20s, the map 41 categorized by purpose is based on the attributes of the users. Therefore, the maps may be further subdivided, and the information providing device 10 may provide the mobile terminal 40 with images 21 suitable for mapping onto each of these maps.

[0113] To make the video 21 that the information provider 10 provides to the mobile terminal 40 suitable for the user's attributes, as described above, only a partial modification of the embodiment described so far is required. The details of this partial modification will now be explained.

[0114] First, let's explain Figure 13. Figure 13 is a flowchart showing the processing details of the modified part of the map attribute determination process. This flowchart shows the processing performed by the determination unit 83 following the processing at S116 in the flowchart shown in Figure 11.

[0115] Following the process in S116 in Figure 11, in S121, the process of extracting and obtaining the poster information from the message information from which words were extracted by the process in S112 or S114 in Figure 11 is performed.

[0116] Next, in S122, the user information obtained in the process of S121 is stored in the storage unit 90 as a user attribute indicating the user of the usage-specific map 41 to which the recorded data is mapped, in association with the recorded data saved in the process of S102 in Figure 10. It should be noted that the aforementioned management table for managing the association between recorded data, message information, and map attributes may also be used to manage the association between recorded data and user information.

[0117] Once the S122 process is complete, the map attribute determination process ends and the process returns to the data collection process shown in Figure 10.

[0118] Next, let's look at Figure 14. Figure 14 shows a second example of the data structure of a recording data request sent from the mobile terminal 40.

[0119] The second example shown in Figure 14 has a structure in which "user attribute" data is placed and included between the "map attribute" and "target date and time" data in each of the same data points as the first example shown in Figure 8.

[0120] "User attributes" refers to information about the user attributes of the user on the usage-specific map 41 to which the requested recorded data is mapped.

[0121] When the mobile terminal 40 receives a request from a user to display a map 41 for specific uses, it sends a recording data request to the information provider 10 containing information that identifies the map attributes of the map 41 for specific uses and the user attributes of the map 41 for specific uses. For example, if a request to display an event map 41-1 for men is received, a recording data request is sent containing information that identifies "event" in the map attributes and information that indicates "male" in the user attributes.

[0122] Next, Figure 15 will be explained. Figure 15 is a flowchart showing a second example of the processing content for providing recorded data. This second example replaces the first example shown in Figure 12.

[0123] Of the processes shown in Figure 15, processes S211 and S212 are performed by the receiving unit 84, and processes S213 to S207 are performed by the supply unit 85.

[0124] When the process shown in Figure 15 begins, first, in S211, a process is performed to determine whether the recording data request transmitted from the mobile terminal 40 has been received by the communication unit 70. If this determination process determines that the recording data request has been received (the determination result is YES), the process proceeds to S212. On the other hand, if this determination process determines that the recording data request has not been received (the determination result is NO), the process in S211 is repeated until it is determined that the recording data request has been received.

[0125] Next, in S212, the communication unit 70 receives a recording data request and performs a process to acquire the map attributes, user attributes, target date and time, and target location information included in the recording data request.

[0126] Next, in S213, the process of setting extraction conditions for the recording data to be provided to the requester of the recording data request is performed using the target date and time and target location information obtained through the processing in S212.

[0127] In the S213 process, dates and times up to a predetermined period prior to the date and time indicated by the target date and time are set as the extraction conditions for recorded data regarding date and time information. Alternatively, dates and times within a predetermined period, with the date and time indicated by the target date and time being the midpoint of that period, may be set as the extraction conditions for recorded data regarding date and time information. Furthermore, a predetermined period may be set for each map attribute, and the period determined for the map attribute obtained by the S212 process may be used to set the extraction conditions for recorded data regarding date and time information.

[0128] Furthermore, in this process 213, locations within a predetermined distance from the location indicated by the target location are set as the extraction condition for recording data regarding location information. Alternatively, distances may be predetermined for each map attribute, and the distances determined for the map attributes obtained by the process in S212 may be used to set the extraction condition for recording data regarding location information.

[0129] Next, in S214, the storage unit 90 performs a process to identify the recorded data that is associated with the combination of map attributes and user attributes obtained through the processing in S212.

[0130] Next, in S215, the process of extracting recording data that matches the extraction conditions for both date and time information and location information set in the process of S213 is performed in the S214 process and read from the storage unit 90.

[0131] Next, in S216, the storage unit 90 reads and acquires message information associated with the recorded data extracted by the processing in S215.

[0132] Next, in S217, the communication unit 70 is controlled to send the recorded video data acquired in the processing of S215 and the message information acquired in the processing of S216 to the mobile terminal 40, which is the source of the recorded video data request received in the processing of S212. Upon receiving this recorded video data, the mobile terminal 40 displays the video 21 represented by the recorded video data, mapped to the location indicated by the location information of the recorded video data on a map displayed based on map data provided by a map server (not shown).

[0133] After completing the processing in S217, the process of providing recording data based on the recording data request that was determined to have been received by the processing in S211 is completed. Then, the process returns to S211 to determine whether or not a new recording data request has been received.

[0134] The process described above is the second example of the process for providing recorded data.

[0135] The embodiments described above also include embodiments of the information provision program and the recording medium on which the program is recorded.

[0136] An information provision program that causes a computer to perform the following actions: collect recorded video data including video, date and time information indicating the date and time the video was captured, and location information indicating the location where the video was captured; collect message information posted to a social networking service (SNS) that is related to the recorded video data, based on the date and time information and location information included in the recorded video data; determine map attributes for the recorded video data, which indicate a map for a specific purpose to which the recorded video data is mapped, based on words included in the message information related to the recorded video data; store the recorded video data, the message information related to the recorded video data, and the map attributes for the recorded video data in association with each other in a storage unit; receive a request for the provision of the recorded video data, which includes the map attributes; and, in response to receiving the request, retrieve the recorded video data associated with the map attributes included in the request and the message information associated with the recorded video data from the storage unit and provide them to the requester.

[0137] Although embodiments of the disclosure and their advantages have been described in detail above, those skilled in the art will be able to make various modifications, additions, and omissions without departing from the scope of the invention as clearly stated in the claims. [Explanation of symbols]

[0138] 1 Information Provision System 10 Information Provision Device 20 Recording Device 21 Video 21-1 Live Street Video 21-2 People Video 21-3 Accident Video 30 Communication Network 40 Mobile Terminal 41 Maps by Application 41-1 Event Map 41-2 Crime Prevention / Monitoring Map 41-3 Navigation Map 50 SNS Server 60 Vehicle 70 Communication Unit 80 Control Unit 81 Recording Data Collection Unit 82 Message Information Collection Unit 83 Decision Unit 84 Reception Unit 85 Provision Unit 90 Storage Unit 100 Computer 101 Processor 102 Memory 103 Storage Device 104 Reader 105 Removable Storage Medium 106 Communication Interface 107 Input / Output Interface 108 Data Bus

Claims

1. A recording device mounted on a vehicle, comprising: an imaging unit for imaging the area around the vehicle; an input unit including a video provision instruction button that accepts operation by the occupants of the vehicle; a storage unit for storing the video captured by the imaging unit as recording data in a storage device; a communication unit for communicating with an external information provision device; and a control unit that, in response to the pressing of the video provision instruction button, causes the recording data captured by the imaging unit and stored in the storage device during a predetermined period of time from the time of pressing to be sent to the information provision device via communication by the communication unit.

2. An information providing device comprising: a recording data collection unit that collects recording data from a recording device according to claim 1; a message information collection unit that collects message information posted to a social networking service and related to the recording data based on the date and time information and location information included in the recording data, wherein the recording data includes video, date and time information indicating the date and time the video was captured, and location information indicating the location of the place where the video was captured; a determination unit that determines map attributes for the recording data, which indicate application-specific maps to which the recording data is mapped, based on words included in the message information related to the recording data; a storage unit that stores the recording data and the determined map attributes in association; a reception unit that receives a request for the provision of the recording data and which includes the map attributes; and a provision unit that, in response to receiving the request, obtains the recording data associated with the map attributes included in the request from the storage unit and provides it to the requester.

3. An information provision method comprising: a recording data collection step of collecting recording data including video footage, date and time information indicating the date and time the video was captured, and location information indicating the location of the place where the video was captured; a message information collection step of collecting message information posted to a social networking service that relates to the recording data, based on the date and time information and location information included in the recording data; a determination step of determining map attributes for the recording data that indicate a map for a specific purpose to which the recording data is mapped, based on words included in the message information related to the recording data; a storage step of storing the recording data and the determined map attributes in association; a reception step of receiving a request for the provision of the recording data that includes the map attributes; and a provision step of providing the recording data associated with the map attributes included in the request to the requester of the request in response to the acceptance of the request.

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