JP2021043504A - Information collection method, communication control apparatus and content accumulation apparatus - Google Patents

Abstract

To transfer collation object data having a large data amount to a content accumulation apparatus rapidly and stably.SOLUTION: A user terminal 1 transmits an interest including text data and an image file for collation to an information oriented network, and when the server 2 receives the interest from the user terminal, the image file for collation is separated from the interest, and an outline interest including the text data and not including the image file for collation and a detailed interest including the image file for collation are transmitted to the information oriented network. A camera 3 associates the text data included in the outline interest and the image file for collation included in the detailed interest, performs collation processing of the image file accumulated in a user's own apparatus and the image file for collation based on a condition defined by the text data, and transmits a collation result report to the user terminal.SELECTED DRAWING: Figure 1

Description

The present invention relates to an information collection method in which an information collector device collects information stored in a content storage device via an information-oriented network, a communication control device connected to the information-oriented network, and content connected to the information-oriented network. It relates to a storage device.

Currently, IP networks (Internet) are widespread. In this IP network, when the content stored in the device is acquired by the user terminal, the necessary content can be acquired by obtaining the IP address of the device and accessing the device using the IP address. ..

On the other hand, as an alternative technology to such an IP network, an information-oriented network (ICN: Information Centric Network) technology is known. Further, as a technology similar to this information-oriented network, there are CCN (Contents Centric Network) and NDN (Named Data Network). Focusing on the routing (routing control) method, these technologies are also called "attribute routing", "name routing", "information routing", etc., and the contents accumulated in the device are used as the attributes of the contents. It is constructed so that it can be collected by name.

By the way, in an information-oriented network, it is possible to collect necessary contents from devices in the network by adding a content name containing character information that identifies necessary contents to an interest (message) and transmitting it from a user terminal. it can. However, the collected content includes many contents that the user does not want. For this reason, there is a problem that it takes a lot of time and effort to select appropriate contents from the collected contents.

Therefore, the device that stores the image files (contents) searches the image files stored in the own device based on the search conditions specified by the information collector, and when an image file that matches the search conditions is found, the image is found. A technique is known in which a file is collated with an image file for collation designated by an information collector to select appropriate contents (see Patent Document 1).

Japanese Patent No. 6373437

However, in the conventional technique, in addition to the text data describing the search conditions, an image file for collation (collation target data) is added to the interest, so that the amount of interest data increases. For this reason, if there is a low-speed line in the middle of the route to the target device that stores the corresponding content, there is a problem of communication delay that it takes a long time for the interest to reach the target device, and interest There was a problem of communication interruption that the target device was not reached, and there was a problem that the image file for collation could not be transferred to the target device quickly and stably.

Therefore, it is a main object of the present invention to provide an information collection method, a communication control device, and a content storage device capable of quickly and stably transferring a large amount of data to be collated to a content storage device. To do.

The information collection method of the present invention is an information collection method in which an information collector device collects information stored in a content storage device via an information-oriented network, and the information collector device collates with request content data. When the interest including the data is sent to the information-oriented network and the communication control device connected to the information-oriented network receives the interest from the information collector device, the request content data is transmitted from the interest. The schematic interest that includes and does not include the collation target data and the detailed interest that includes the collation target data are separated, the schematic interest and the detailed interest are sent to the information-oriented network, and the content storage device controls the communication. Upon receiving the schematic interest and the detailed interest from the apparatus, the request content data included in the schematic interest and the collation target data included in the detailed interest are associated with each other and defined in the request content data. Based on the conditions, the content stored in the own device is collated with the collation target data, and the response message including the collation result is sent to the information-oriented network.

Further, the communication control device of the present invention is a communication control device connected to an information-oriented network, from a receiving unit that receives an interest including request content data and collation target data from an information collector device, and from the interest. A processor that separates a schematic interest that includes the request content data and does not include the collation target data and a detailed interest that includes the collation target data, and a transmission unit that transmits the schematic interest and the detailed interest to the information-oriented network. And, the configuration is provided.

Further, the content storage device of the present invention is a content storage device connected to an information-oriented network, and is a receiving unit that receives a schematic interest and a detailed interest from a communication control device, and a request content data included in the schematic interest. And a processor that collates the collation target data included in the detailed interest and performs collation processing between the content stored in the own device and the collation target data based on the conditions specified in the request content data. The configuration includes a transmission unit that sends a response message including the result of the collation process to the information-oriented network.

According to the present invention, the communication control device divides the approximate interest including the request content data and not the collation target data into the detailed interest including the collation target data and sends the data to the information-oriented network, so that the amount of data is large. Large collation target data can be quickly and stably transferred to the content storage device.

Overall configuration diagram of the communication system according to the first embodiment A block diagram showing a schematic configuration of a user terminal 1, a server 2, and a camera 3 according to the first embodiment. A sequence diagram showing an operation procedure of the communication system according to the first embodiment. Overall configuration diagram of the communication system according to the second embodiment Overall configuration diagram of the communication system according to the third embodiment A sequence diagram showing an operation procedure of the communication system according to the third embodiment. Overall configuration diagram of the communication system according to the modified example of the third embodiment A sequence diagram showing an operation procedure of the communication system according to the modified example of the third embodiment. Overall configuration diagram of the communication system according to the fourth embodiment A sequence diagram showing an operation procedure of the communication system according to the fourth embodiment. Overall configuration diagram of the communication system according to the fifth embodiment A sequence diagram showing an operation procedure of the communication system according to the fifth embodiment. Overall configuration diagram of the communication system according to the sixth embodiment A sequence diagram showing an operation procedure of the communication system according to the sixth embodiment. Overall configuration diagram of the communication system according to the seventh embodiment Overall configuration diagram of the communication system according to the eighth embodiment A sequence diagram showing an operation procedure of the communication system according to the eighth embodiment. A sequence diagram showing an operation procedure of the communication system according to the eighth embodiment. A sequence diagram showing an operation procedure of the communication system according to the ninth embodiment. A sequence diagram showing an operation procedure of the communication system according to the ninth embodiment. Overall configuration diagram of the communication system according to the tenth embodiment A sequence diagram showing an operation procedure of the communication system according to the tenth embodiment. A sequence diagram showing an operation procedure of the communication system according to the tenth embodiment. A sequence diagram showing an operation procedure of the communication system according to the eleventh embodiment. A sequence diagram showing an operation procedure of the communication system according to the eleventh embodiment. A block diagram showing a schematic configuration of a ferry 41 according to a twelfth embodiment. Explanatory drawing which shows the outline of the communication system which concerns on 13th Embodiment Explanatory drawing which shows the outline of the communication system which concerns on 14th Embodiment

The first invention made to solve the above-mentioned problems is an information collecting method in which an information collector device collects information accumulated in a content storage device via an information-oriented network, and the information collector device is capable of collecting information. , The interest including the request content data and the collation target data is sent to the information-oriented network, and when the communication control device connected to the information-oriented network receives the interest from the information collector device, the interest is received. Separates the schematic interest containing the request content data and not including the collation target data and the detailed interest including the collation target data, and sends the schematic interest and the detailed interest to the information-oriented network, and the content. When the storage device receives the schematic interest and the detailed interest from the communication control device, the request content data included in the schematic interest is associated with the collation target data included in the detailed interest, and the data is described. Based on the conditions specified in the request content data, the content stored in the own device is collated with the collation target data, and the response message including the collation result is sent to the information-oriented network. ..

According to this, the communication control device divides the approximate interest including the request content data and not the collation target data into the detailed interest including the collation target data and sends it to the information-oriented network, so that the collation with a large amount of data The target data can be quickly and stably transferred to the content storage device.

Further, the second invention has a configuration in which the communication control device adds identification information of the collation target data to the schematic interest.

According to this, based on the identification information of the collation target data, for example, the name (file name) of the data file storing the collation target data, the request content data included in the approximate interest and the collation target data included in the detailed interest are obtained. The corresponding process (interest reconstruction process) can be easily and appropriately performed.

Further, in the third invention, when the data storage device provided on the high-speed communication path stores the data to be collated included in the detailed interest and the content storage device receives the approximate interest, the said The configuration is such that the data storage device is requested to provide the collation target data.

According to this, it is possible to reduce the load on the information-oriented network by suppressing unnecessary transfer of detailed interest.

Further, in the fourth invention, the communication control device constitutes the information-oriented network and transmits the approximate interest to a low-speed communication path including a communication section by long-range wireless communication to form the information-oriented network. In addition, the detailed interest is transmitted to the high-speed communication path including the communication section by short-range wireless communication.

According to this, since the approximate interest with a small amount of data is transmitted by the low-speed communication path and the detailed interest with a large amount of data is transmitted by the high-speed communication path, efficient communication can be performed.

Further, in the fifth invention, when the content storage device receives the detailed interest from the communication control device, the content storage device transfers the detailed interest to another content storage device in the vicinity.

According to this, even when there is no high-speed communication path or is interrupted, or when the content storage device exists outside the communication area of wireless communication, the detailed interest can be delivered to the content storage device.

Further, in the sixth invention, the mobile body receives the detailed interest by short-range wireless communication from the station device connected to the high-speed communication path, transports the detailed interest, and transports the detailed interest, and the content is transmitted by short-range wireless communication. The detailed interest is transmitted to the storage device.

According to this, even if there is no high-speed communication path of the information-oriented network or the communication path is interrupted, the detailed interest can be delivered to the content storage device.

Further, in the seventh invention, the communication control device notifies the moving body of the position of the station device, and the moving body changes the moving path so as to pass in the vicinity of the station device. The configuration is such that the detailed interest is acquired from the station device.

According to this, the detailed interest can be reliably delivered from the station device to the moving body. In addition, when making the moving body change the moving route, a measure such as giving an incentive such as points may be used in order to promote the change of the moving route.

Further, in the eighth invention, the communication control device sends the detailed interest including the divided data obtained by dividing the collation target data to the information-oriented network, and the content storage device is included in the detailed interest. The divided data is integrated to acquire the collation target data.

According to this, the content storage device can acquire the collation target data even if the information-oriented network does not have an appropriate high-speed communication path. In this case, if the content storage device determines that the collation target data is unnecessary based on the approximate interest, the detailed interest transmitted thereafter may be ignored. Further, when the content storage device has acquired the divided data to the extent that the collation process can be appropriately executed, the reception of the detailed interest transmitted thereafter may be stopped.

Further, according to the ninth aspect of the present invention, the content storage device executes preprocessing based on the request content data included in the schematic interest between the time when the approximate interest is received and the time when the detailed interest is received. The configuration is to be used.

According to this, by executing preprocessing between receiving the approximate interest and receiving the detailed interest, it is possible to shorten the time and improve the efficiency of the collation process performed at the stage when the detailed interest is received. it can.

Further, according to the tenth invention, as the pre-processing, the content storage device obtains the content corresponding to the approximate search condition described in the request content data included in the schematic interest in the content stored in the own device. It is configured to search from the inside.

According to this, since detailed collation processing needs to be performed only for the contents found in the search process, the collation process can be performed quickly.

Further, according to the eleventh invention, as the pre-processing, the content storage device obtains the content corresponding to the search condition described in the request content data included in the schematic interest from the contents stored in the own device. The configuration is such that a search is performed and the necessity of the collation target data is determined based on the search result.

According to this, since the detailed interest may be transferred to the content storage device that requires the collation target data, the load on the information-oriented network can be reduced.

Further, in the twelfth invention, when the content storage device determines that the collation target data is necessary, the content storage device transmits information (position, device ID, etc.) about the own device to the communication control device, and the communication control is performed. The device notifies the moving body that transports the detailed interest of information about the content storage device that requires the collation target data, and the moving body is in the vicinity of the content storage device that requires the collation target data. The movement route is changed so as to pass through, and the detailed interest is transferred to the content storage device.

According to this, the detailed interest can be reliably transferred from the mobile body to the content storage device. In addition, when making the moving body change the moving route, a measure such as giving an incentive such as points may be used in order to promote the change of the moving route.

The thirteenth invention is a communication control device connected to an information-oriented network, from a receiving unit that receives an interest including request content data and collation target data from an information collector device, and from the interest. The configuration includes a processor that separates the schematic interest that includes the request content data and does not include the collation target data, and a transmission unit that transmits the schematic interest and the detailed interest to the information-oriented network.

According to this, as in the first invention, the collation target data having a large amount of data can be quickly and stably transferred to the content storage device.

Further, the fourteenth invention is a content storage device connected to an information-oriented network, in which a receiving unit that receives a schematic interest and a detailed interest from a communication control device, a request content data included in the schematic interest, and a request content data. A processor that collates the collation target data included in the detailed interest and performs collation processing between the content stored in the own device and the collation target data based on the conditions specified in the request content data, and the above. The configuration includes a transmission unit that sends a response message including the result of the collation process to the information-oriented network.

According to this, as in the first invention, the collation target data having a large amount of data can be quickly and stably transferred to the content storage device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First Embodiment)
FIG. 1 is an overall configuration diagram of a communication system according to the first embodiment.

This communication system collects necessary contents or incidental information thereof using an information-oriented network (ICN: Information Centric Network), and is a user terminal 1 (information collector device) and a server 2 (communication control device). And a camera 3 (content storage device). The user terminal 1, the server 2, and the camera 3 are connected to each other via an information-oriented network. In addition, a router 4 is installed in the information-oriented network. In addition to the ones shown in the figure, the router 4 is installed at an appropriate place in the information-oriented network.

In the user terminal 1, a user (information collector) performs an operation related to information collection. In this embodiment, an image search is performed as an example of information collection. When the user inputs necessary information, the user terminal 1 generates an interest including text data and an image file for collation, and sends the interest to the information-oriented network.

Here, the text data (request content data) includes information on the user's request content, specifically, the position information of the shooting point (area) and the shooting as the condition (search condition) of the search process performed by the camera 3. Time information of the time (period) is described. This text data is generated in response to a user's input operation regarding search conditions and the like. At this time, if the user specifies a specific area (for example, near XXX town) as the shooting point, the image file taken by the camera 3 located in the area is targeted. Further, when the user specifies a specific time zone as the shooting time (period), the image file shot by the camera 3 in that time zone is targeted.

Further, the collation image file (collation target data) includes, for example, a face image of a person to be searched in the case of a person search. The camera 3 performs a collation process using the face image of the person to be searched, so that an image file in which the person to be searched is captured is selected. By reporting the result of this collation process to the user, the user can confirm the recent location and movement route of the person to be searched.

When the server 2 receives the interest from the user terminal 1, the server 2 separates the image file for collation from the interest, and sets the outline interest containing the text data and not the image file for collation and the image file for collation. A detailed interest including is generated, and the approximate interest and the detailed interest are sent to another communication route of the information-oriented network. In particular, the server 2 sends the approximate interest to the low-speed communication route (route # 1) and the detailed interest to the high-speed communication route (route # 2).

When the camera 3 receives the approximate interest and the detailed interest from the server 2, the camera 3 displays an image file (content) corresponding to the search condition described in the text data included in the approximate interest in the image file stored in the own device. Then, the image file for collation included in the detailed interest is collated with the image file found in the search, and the response message including the collation result is sent from the request source (source of interest). It is transmitted to the user terminal 1.

In the present embodiment, the camera 3 receives the detailed interest including the image file and performs the image collation process using the image file. However, the collation target data to be added to the detailed interest is the image data. Not limited. For example, voice data or odor data may be used as collation target data. In this case, it is preferable to describe in the text data information regarding the type of collation target data, that is, the type of content to be searched and collated by the camera 3, as a search condition.

Further, the server 2 may divide the interest into two when the image file (data to be collated) has a predetermined capacity or more. Further, when a plurality of types of collation target data are targeted, it may be determined whether or not the interest is divided into two according to the type of the collation target data. That is, when the collation target data is of a predetermined type (for example, an image), the interest is divided into two.

Further, in the present embodiment, an example in which the camera 3 is connected to the information-oriented network as the content storage device will be described, but the content storage device is not limited to the camera. In an information-oriented network, since connected devices share content, devices other than cameras, such as sensing devices such as temperature / humidity sensors and microphones, as well as servers and routers, function as content storage devices.

Next, a schematic configuration of the user terminal 1, the server 2, and the camera 3 according to the first embodiment will be described. FIG. 2 is a block diagram showing a schematic configuration of a user terminal 1, a server 2, and a camera 3.

The user terminal 1 includes a communication unit 11, an input unit 12, a display unit 13, a memory 14, and a processor 15.

The communication unit 11 transmits an interest (request message) to the network, and receives a collation result report (response message) transmitted from the network as a response of the interest.

In the input unit 12, the user (information collector) performs an input operation for designating a search condition and an image to be searched (such as a face image of a person). The display unit 13 displays an input image when designating a search condition or an image to be searched, and information received by the communication unit 11.

The memory 14 stores a program or the like executed by the processor 15.

The processor 15 executes various processes related to information collection by executing a program stored in the memory 14. In the present embodiment, the processor 15 performs interest transmission processing, received data processing, and the like.

In the interest transmission process, the processor 15 acquires text data related to the search condition input by the user, acquires an image file to be searched by the user, and generates an interest including the text data and the image file. , The communication unit 11 is controlled so as to send the interest to the information-oriented network.

In the received data processing, the processor 15 performs processing such as displaying the data received from the information-oriented network by the communication unit 11, for example, the collation result report from the camera 3 on the display unit 13.

The server 2 includes a communication unit 21 (reception unit, transmission unit), a memory 22, and a processor 23.

The communication unit 21 sends and receives interest (request message) and response message to and from the information-oriented network.

The memory 22 stores a program or the like executed by the processor 23.

The processor 23 performs various processes related to information collection by executing the program stored in the memory 22. In the present embodiment, the processor 23 performs interest transfer processing, received data transfer processing, and the like.

In the interest transfer process, the processor 23 transfers the interest received from the upper node (router on the user terminal 1 side, etc.) of the information-oriented network by the communication unit 11 to the lower node (router, etc. on the camera 3 side). Controls the communication unit 21.

In particular, in the present embodiment, the processor 23 separates the image file from the interest received from the user terminal 1 (image separation processing), and the outline interest including the text data and not the image file and the detailed interest including the image file. To generate. Then, the processor 23 controls the communication unit 21 so as to send the approximate interest to the low-speed communication route of the information-centric network and the detailed interest to the high-speed communication route of the information-centric network.

In the received data transfer process, the processor 23 receives data (for example, a collation result report) received from a lower node (such as a router on the camera 3 side) of the information-oriented network by the communication unit 11 as a higher node (a router on the user terminal 1 side). Etc.), and the communication unit 21 is controlled so as to transfer the data.

The camera 3 includes a photographing unit 31, a communication unit 32 (reception unit, transmission unit), a memory 33, and a processor 34.

The photographing unit 31 photographs the periphery of the camera 3 and outputs captured image data. The captured image data (still image, moving image) is stored in an image file by the processor 34.

The communication unit 32 receives the interest (request message) transmitted from the information-oriented network, and transmits the collation result report (response message) to the information-oriented network.

The memory 33 stores a program or the like executed by the processor 23. Further, the memory 33 stores the image file generated by the processor 34.

The processor 34 performs various processes related to information collection by executing the program stored in the memory 22. In the present embodiment, the processor 34 performs interest reconstruction processing, image search processing, image matching processing, and the like.

In the interest reconstruction process, when the communication unit 32 receives the approximate interest from the server 2 and further receives the detailed interest from the server 2, the processor 34 includes the text data included in the approximate interest and the detailed interest. Corresponds to the image file for collation. At this time, if the number of interests received is not so large, the text data can be associated with the image file for collation based on the arrival timing of the approximate interest and the detailed interest. In this interest reconstruction process, it is sufficient to associate the text data with the image file for collation, and it is not necessary to reproduce the message of the interest including the text data and the image file for collation.

In the image search process, the processor 34 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device. Specifically, in the text data, the position information of the shooting point (area) and the time information of the shooting time (period) are described as search conditions, and the shooting point (area) and the shooting time (period) are used. The corresponding image file is searched.

In the image collation process, the processor 34 collates the image file for collation with the image file found by the image search, and generates a collation result report to be transmitted to the user terminal 1 as a response to the interest. This collation result report (response message including the collation result) is sent from the communication unit 32 to the information-oriented network, is transferred in the reverse direction in the communication path of the approximate interest, and reaches the user terminal 1.

In the image collation process, the collation accuracy (the accuracy of collation, the recognition rate) indicating the high possibility that the subjects (for example, a person) appearing in the two image files are the same is acquired, and the collation accuracy is predetermined. When the threshold value (for example, 90%) of is reached, the information indicating that the collation was successful, the identification information (camera ID) of the own device, and the position information of the own device are added to the collation result report. To. On the other hand, when the collation accuracy does not reach the threshold value, the information that the collation failed, the identification information (camera ID) of the own device, and the position information of the own device are added to the collation result report. ..

Further, in the image collation process, the processor 34 may transmit the numerical value of the collation accuracy itself to the user terminal 1 so that the identification determination is performed on the user terminal 1 side. In this case, for example, when a plurality of collation results are returned, the user terminal 1 may select the one with the highest collation accuracy, or both the collation accuracy and the position difference between the previously collated position. May be taken into consideration when selecting the optimum one. As a result, it becomes possible to select a more appropriate one as compared with the case where the user terminal 1 receives only the success / failure information of the collation.

Next, the operation procedure of the communication system according to the first embodiment will be described. FIG. 3 is a sequence diagram showing an operation procedure of the communication system.

First, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route (route # 1) of the directional network. Further, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route (route # 2) of the information-oriented network.

Next, when the camera 3 receives the approximate interest from the server 2 and further receives the detailed interest from the server 2, the text data included in the approximate interest and the image file for collation included in the detailed interest are obtained. Correspondence (interest reconstruction process). Next, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the server 2. This collation result report is received by the user terminal 1 via the server 2.

(Second Embodiment)
Next, the second embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 4 is an overall configuration diagram of the communication system according to the second embodiment. The operation procedure of the communication system is the same as that of the first embodiment (see FIG. 1).

In the present embodiment, as in the first embodiment (see FIG. 1), the server 2 separates the image data included in the interest from the user terminal 1 and includes the text data and does not include the image file. Is sent to the low-speed communication route of the information-oriented network, and the detailed interest including the image file is sent to the high-speed communication route of the information-oriented network.

On the other hand, in the present embodiment, the server 2 adds the identification information of the image file included in the detailed interest to the approximate interest. Here, the identification information of the image file is, for example, a file name given to the image file. For example, the file name "GZA-20190624-9s3fd" is added to the outline interest. The file name should have a certain length so that it does not match other file names as much as possible, or include time and random numbers (including random alphabets and symbols, not limited to numbers). Is desirable.

As a result, when the camera 3 receives the schematic interest and the detailed interest, the camera 3 associates the text data included in the schematic interest with the image file included in the detailed interest based on the identification information of the image file included in the schematic interest. The process (interest reconstruction process) can be easily and appropriately performed.

In the present embodiment, the camera 3 associates the text data with the image file based on the identification information of the image file, but the server 2 relates to the attribute information of the image file, for example, the size of the image file. Information and information on the type of object to be photographed (person, etc.) are added to the outline interest and transmitted to the camera 3, so that the camera 3 associates the text data with the image file based on the attribute information of the image file. It may be.

(Third Embodiment)
Next, the third embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 5 is an overall configuration diagram of the communication system according to the third embodiment.

In the present embodiment, similarly to the first embodiment (see FIG. 1), the server 2 sends a schematic interest to the low-speed communication route of the information-oriented network, and sends a detailed interest to the high-speed communication route of the network.

On the other hand, in the present embodiment, the intermediate server 5 (data storage device) is installed on the high-speed communication route for transmitting the detailed interest from the server 2. Upon receiving the approximate interest from the server 2, the camera 3 requests the intermediate server 5 to provide an image file for collation. When the intermediate server 5 receives the detailed interest from the server 2, it accumulates the collation image file included in the detailed interest, and if there is a request from the camera 3, the collation image file stored in its own device. Is transmitted to the camera 3. The intermediate server 5 is one of the servers 2 on the information-oriented network, and the image request from the camera 3 is sent to the information-oriented network as an interest requesting an image file.

As described above, in the present embodiment, when the intermediate server 5 receives the detailed interest from the server 2, the detailed interest is not transferred, and when there is an image request from the camera 3, the collation image included in the detailed interest is obtained. Send the file to camera 3. Therefore, unnecessary transfer of detailed interest can be avoided, and the load on the network can be reduced.

It should be noted that the camera 3 determines the necessity of the collation image file based on the text data included in the approximate interest, and only when the camera 3 determines that the collation image file is necessary, the intermediate server 5 is used for collation. You may request the transfer of the image file. At this time, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Then, when an image file corresponding to the search condition is found, it is determined that the image file for collation is necessary.

Next, the operation procedure of the communication system according to the third embodiment will be described. FIG. 6 is a sequence diagram showing an operation procedure of the communication system.

First, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Further, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network.

Next, when the intermediate server 5 receives the detailed interest from the server 2, the image file for collation included in the detailed interest is stored in the own device.

Further, when the camera 3 receives the approximate interest from the server 2, it transmits an image request to the intermediate server 5. Next, when the intermediate server 5 receives the image request from the camera 3, the image file corresponding to the image request is stored in the own device, so the image file is transmitted to the camera 3. At this time, the image request is sent to the information-oriented network as interest, and the image file is sent to the information-oriented network as response data of interest.

Next, when the camera 3 receives the collation image file from the intermediate server 5, the text data included in the approximate interest is associated with the collation image file acquired from the intermediate server 5 (interest reconstruction process). .. Next, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the server 2. This collation result report is received by the user terminal 1 via the server 2.

(Modified example of the third embodiment)
Next, a modified example of the third embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 7 is an overall configuration diagram of a communication system according to a modified example of the third embodiment.

In this modification, as in the third embodiment (see FIG. 5), when the intermediate server 5 accumulates the image file for collation included in the detailed interest from the server 2, and there is a request from the camera 3. The collation image file stored in the own device is transmitted to the camera 3.

On the other hand, in this modification, when the camera 3 can access the server 6 installed in the information-oriented network in addition to the intermediate server 5, the image file for collation is also transmitted to the server 6 in addition to the intermediate server 5. Request offer. In this case, since the image file corresponding to the request from the camera 3 is not stored in the own device, the other server 6 transmits a response to the camera 3 that the corresponding image file does not exist.

Next, the operation procedure of the communication system according to the modified example of the third embodiment will be described. FIG. 8 is a sequence diagram showing an operation procedure of the communication system.

First, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Further, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network.

Next, when the intermediate server 5 receives the detailed interest from the server 2, the image file included in the detailed interest is stored in its own device.

Further, when the camera 3 receives the approximate interest from the server 2, it transmits an image request to the intermediate server 5 and the other servers 6. Next, when the intermediate server 5 receives the image request from the camera 3, the image file corresponding to the image request is stored in the own device, so the image file is transmitted to the camera 3. Further, when the other server 6 receives the image request from the camera 3, the image file corresponding to the image request is not stored in the own device, so a response to the effect that the corresponding image file does not exist is transmitted to the camera 3. To do.

Next, when the camera 3 receives the collation image file from the intermediate server 5, the text data included in the approximate interest is associated with the collation image file acquired from the intermediate server 5 (interest reconstruction process). .. Next, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the server 2. This collation result report is received by the user terminal 1 via the server 2.

(Fourth Embodiment)
Next, the fourth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 9 is an overall configuration diagram of the communication system according to the fourth embodiment.

In the present embodiment, similarly to the first embodiment (see FIG. 1), the server 2 sends a schematic interest to the low-speed communication route of the information-oriented network, and sends a detailed interest to the high-speed communication route of the network.

On the other hand, in the present embodiment, the approximate interest is transferred to the camera 3 using the wireless line. Specifically, a gateway 7 (wireless distribution device) that serves as a base station for long-distance wireless communication, especially LPWA (Low Power, Wide Area) communication, is installed on a low-speed communication route that transmits an approximate interest. The approximate interest is transferred from the gateway 7 to the camera 3 by LPWA communication.

The gateway 7 broadcasts a schematic interest via LPWA communication. That is, the camera 3 is notified of the approximate interest by the broadcast communication.

As a result, the approximate interest can be transferred to the cameras 3 located in the communication area of the gateway 7 all at once. Further, the transfer range of the approximate interest can be limited by the communication area of the gateway 7. That is, the approximate interest can be transferred only to the cameras 3 that exist in a limited range. Therefore, it is possible to avoid transferring the approximate interest to the cameras 3 which are present in a wider range than necessary.

The configurations of the user terminal 1, the server 2, and the camera 3 are substantially the same as those of the first embodiment (see FIG. 2), but the communication unit 32 of the camera 3 has a function of performing LPWA communication.

Next, the operation procedure of the communication system according to the fourth embodiment will be described. FIG. 10 is a sequence diagram showing an operation procedure of the communication system.

First, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Next, when the gateway 7 receives the approximate interest from the server 2, the approximate interest is transmitted to the camera 3 by LPWA communication.

Further, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network. Next, when the camera 3 receives the detailed interest from the server 2, the text data included in the approximate interest is associated with the image file for collation included in the detailed interest (interest reconstruction process). Next, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the gateway 7 by LPWA communication.

Next, when the gateway 7 receives the collation result report from the camera 3, the gateway 7 sends the collation result report to the low-speed route of the information-oriented network. This collation result report is received by the user terminal 1 via the server 2.

(Fifth Embodiment)
Next, the fifth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 11 is an overall configuration diagram of the communication system according to the fifth embodiment.

In the present embodiment, similarly to the fourth embodiment (see FIG. 9), the gateway 7 transmits the approximate interest to the camera 3 by LPWA communication.

On the other hand, in the present embodiment, a relatively high-speed short-range wireless communication, specifically, an access point 8 that performs WLAN communication such as WiFi (registered trademark) is used as a high-speed communication route for transmitting detailed interest (wireless distribution device). It is installed, and detailed interest is transferred from the access point 8 to the camera 3 by WLAN communication.

Further, since the communication area (radio wave range) of WiFi (registered trademark) is smaller than the communication area of LPWA, one access point 8 can transmit detailed interest to all cameras 3 in the communication area of LPWA. It may not be possible.

Therefore, in the present embodiment, the detailed interest is transferred between the plurality of peripheral cameras 3 by multi-hop communication. That is, the detailed interest is sequentially transferred from the camera 3 located in the communication area of the access point 8 to the surrounding cameras 3, and the camera 3 located outside the communication area of the access point 8 can acquire the detailed interest.

Next, the operation procedure of the communication system according to the fifth embodiment will be described. FIG. 12 is a sequence diagram showing an operation procedure of the communication system.

First, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Next, when the gateway 7 receives the approximate interest from the server 2, the approximate interest is transmitted to the camera 3 by LPWA communication.

Further, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network. Next, when the access point 8 receives the detailed interest from the server 2, the detailed interest is transferred to the camera 3 by WLAN communication. Further, when the camera 3 receives the detailed interest from the access point 8, the detailed interest is transferred to another camera 3 existing in the vicinity.

Next, when the camera 3 receives the detailed interest from the access point 8 or another camera 3, the text data included in the approximate interest is associated with the collation image file included in the detailed interest (interest reconstruction process). ). Next, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the gateway 7 by LPWA communication.

Next, when the gateway 7 receives the collation result report from the camera 3, the gateway 7 sends the collation result report to the low-speed route of the information-oriented network. This collation result report is received by the user terminal 1 via the server 2.

(Sixth Embodiment)
Next, the sixth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 13 is an overall configuration diagram of the communication system according to the sixth embodiment.

In the present embodiment, similarly to the fourth embodiment (see FIG. 9), the gateway 7 transmits the approximate interest to the camera 3 by LPWA communication.

On the other hand, in the present embodiment, the detailed interest is transferred to the camera 3 by using a moving body such as a vehicle or a pedestrian as the ferry 41 carrying the detailed interest by the message ferry method. A station 9 (station device) is installed on a high-speed communication route (route # 2) of an information-oriented network. The station 9 accumulates the detailed interest received from the high-speed communication route, and when the ferry 41 stops at the station 9, the detailed interest is transferred to the ferry 41. Then, when the ferry 41 stops at the camera 3, the detailed interest is transferred from the ferry 41 to the camera 3.

As described above, in the present embodiment, since the detailed interest is transferred to the camera 3 by the message ferry method, the detailed interest can be delivered to the camera 3 even if the high-speed communication route of the information-oriented network is only halfway.

When the vehicle becomes the ferry 41, specifically, the in-vehicle terminal mounted on the vehicle operates the ferry 41. This in-vehicle terminal has an information-oriented network function.

Further, in the present embodiment, the transfer of the detailed interest from the station 9 to the ferry 41 and the transfer of the detailed interest from the ferry 41 to the camera 3 are performed by wire communication. Therefore, the station 9 and the ferry 41 are connected by a communication terminal, and the ferry 41 and the camera 3 are connected by a communication terminal. At this time, for example, when a charger is installed in the station 9, the charger and the electric vehicle are docked, and the charging power is transmitted from the charger to the electric vehicle, the detailed interest is transferred from the station 9 to the ferry 41. You may try to do it.

Next, the operation procedure of the communication system according to the sixth embodiment will be described. FIG. 14 is a sequence diagram showing an operation procedure of the communication system.

First, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Next, when the gateway 7 receives the approximate interest from the server 2, the approximate interest is transmitted to the camera 3 by LPWA communication.

Further, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network. Next, when the station 9 receives the detailed interest from the server 2, the detailed interest is transferred to the ferry 41. Next, when the ferry 41 receives the detailed interest from the station 9, the detailed interest is transferred to the camera 3.

Next, when the camera 3 receives the detailed interest from the ferry 41, the text data included in the approximate interest is associated with the collation image file included in the detailed interest (interest reconstruction process). Next, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the gateway 7 by LPWA communication.

Next, when the gateway 7 receives the collation result report from the camera 3, the gateway 7 sends the collation result report to the low-speed route of the information-oriented network. This collation result report is received by the user terminal 1 via the server 2. If the ferry is equipped with a camera and has an LPWA communication function, the camera mounted on the ferry may also be operated as the camera 3. In this case, it is necessary to add information on the place where the video was taken to the collation result report.

(7th Embodiment)
Next, the seventh embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 15 is an overall configuration diagram of the communication system according to the seventh embodiment.

In the present embodiment, similarly to the sixth embodiment (see FIG. 13), the gateway 7 transmits the approximate interest to the camera 3 by LPWA communication. The station 9 also transfers the detailed interest to the ferry 41. Then, the ferry 41 transfers the detailed interest to the camera 3.

On the other hand, in the present embodiment, the transfer of the detailed interest from the station 9 to the ferry 41 and the transfer of the detailed interest from the ferry 41 to the camera 3 are performed by short-range wireless communication such as WLAN communication.

As a result, when transferring the detailed interest from the station 9 to the ferry 41, the ferry 41 does not have to stop at the station 9 and only needs to pass in the vicinity thereof. Further, when transferring the detailed interest from the ferry 41 to the camera 3, the ferry 41 only needs to pass in the vicinity of the camera 3.

The operation procedure of the communication system according to the present embodiment is the same as that of the sixth embodiment (see FIG. 1), but in particular, in the present embodiment, the detailed interest is transferred from the ferry 41 to the camera 3 by WLAN communication.

Further, in the present embodiment, the ferry 41 transfers the detailed interest to the camera 3 by short-range wireless communication such as WLAN communication, but the communication method is not limited to WLAN communication. For example, the detailed interest may be transferred from the ferry 41 to the camera 3 by infrared communication, Bluetooth (registered trademark), millimeter wave communication, or the like.

(8th Embodiment)
Next, the eighth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 16 is an overall configuration diagram of the communication system according to the eighth embodiment.

In the present embodiment, similarly to the seventh embodiment (see FIG. 15), the gateway 7 transmits the approximate interest to the camera 3 by LPWA communication. Further, the ferry 41 transfers the detailed interest to the camera 3 by short-range wireless communication such as WLAN communication.

On the other hand, in the present embodiment, the server 2 informs the ferry 41 of the position of the station 9. Then, the ferry 41 changes from the planned route to a route that passes around the station 9 so that the detailed interest can be transferred from the station 9.

As described above, in the present embodiment, since the ferry 41 passing around the station 9 changes the route, the detailed interest can be reliably transferred from the station 9 to the camera 3.

In the present embodiment, in order to change the route of the ferry 41 (moving body), the cooperation of the person who controls the ferry 41, for example, when the ferry 41 is a vehicle, the driver of the ferry 41 is required. Therefore, in order to promote the cooperation of the person who controls the ferry 41, an incentive (card points, discount coupon, etc.) may be given when the person cooperates in changing the route.

Next, the operation procedure of the communication system according to the eighth embodiment will be described. 17 and 18 are sequence diagrams showing the operation procedure of the communication system.

As shown in FIG. 17, first, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Next, when the gateway 7 receives the approximate interest from the server 2, the approximate interest is transmitted to the camera 3 by LPWA communication.

Further, the server 2 transmits a device position notification (interest) including the position information of the station 9 to the ferry 41. Next, when the ferry 41 receives the device position notification from the server 2, the ferry 41 sets the passage route of its own device based on the information included in the device position notification, specifically, the position information of the station 9. Change to a route that passes in the vicinity of (route change).

Further, as shown in FIG. 18, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network. Next, when the station 9 receives the detailed interest from the server 2, the detailed interest is transferred to the ferry 41 by short-range wireless communication (WLAN communication or the like). Next, when the ferry 41 receives the detailed interest from the station 9, the detailed interest is transferred to the camera 3 by short-range wireless communication.

Next, when the camera 3 receives the detailed interest from the ferry 41, the text data included in the approximate interest is associated with the collation image file included in the detailed interest (interest reconstruction process). Next, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the gateway 7 by LPWA communication.

Next, when the gateway 7 receives the collation result report from the camera 3, the gateway 7 sends the collation result report to the low-speed route of the information-oriented network. This collation result report is received by the user terminal 1 via the server 2.

(9th Embodiment)
Next, the ninth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. Further, the configuration of the communication system according to the present embodiment is the same as that of the seventh embodiment (see FIG. 15).

In the present embodiment, similarly to the seventh embodiment (see FIG. 15), the gateway 7 transmits the approximate interest to the camera 3 by LPWA communication. Further, by the message ferry method, the detailed interest is transferred to the camera 3 using the ferry 41 (mobile body). Further, the ferry 41 transfers the detailed interest to the camera 3 by short-range wireless communication such as WLAN communication.

On the other hand, in the present embodiment, the camera 3 waits from the arrival of the approximate interest until the arrival of the detailed interest, and as a preprocessing, the camera 3 prepares the image file for collation based on the text data included in the approximate interest. Judge the necessity. Then, when the camera 3 determines that the image file for collation is unnecessary, it does not receive the detailed interest delivered from the ferry 41.

Further, the ferry 41 broadcasts a detailed interest by short-range wireless communication (WLAN communication or the like) while moving. That is, the detailed interest is notified to the camera 3 by the broadcast communication. Therefore, all the cameras 3 existing in the communication area of the short-range wireless communication can receive the detailed interest transmitted from the ferry 41. On the other hand, the camera 3 that determines that the collation image file is unnecessary in the preprocessing operates so as not to receive the detailed interest transmitted from the ferry 41.

The ferry 41 may recognize the camera 3 to which the detailed interest is transmitted, and then transmit the detailed interest only to the camera 3 that requires the image file for collation.

Next, the operation procedure of the communication system according to the ninth embodiment will be described. 19 and 20 are sequence diagrams showing the operation procedure of the communication system.

As shown in FIG. 19, first, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Next, when the gateway 7 receives the approximate interest from the server 2, the approximate interest is transmitted to the camera 3 by LPWA communication.

Next, when the camera 3 receives the approximate interest from the gateway 7, as a preprocessing, it determines the necessity of the collation image file based on the text data included in the approximate interest (image necessity determination). At this time, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Then, when an image file corresponding to the search condition is found, it is determined that the image file for collation is necessary. On the other hand, when the image file corresponding to the search condition is not found, it is determined that the image file for collation is unnecessary.

Further, as shown in FIG. 20, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network. Next, when the station 9 receives the detailed interest from the server 2, the detailed interest is transferred to the ferry 41 by short-range wireless communication (WLAN communication or the like). Next, when the ferry 41 receives the detailed interest from the station 9, the detailed interest is transferred to the camera 3 by short-range wireless communication.

Next, when the camera 3 determines that the image file for collation is necessary in the preprocessing, when the detailed interest from the ferry 41 is received, the text data included in the approximate interest and the collation included in the detailed interest are used. Associate with the image file of (interest reconstruction process). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the gateway 7 by LPWA communication.

On the other hand, the camera 3 that determines that the collation image file is unnecessary in the preprocessing does not receive the detailed interest from the ferry 41, and does not perform interest reconstruction, image collation, and collation result report. In the examples shown in FIGS. 19 and 20, since the cameras 3 of # 1 and # 4 have determined that the image file for collation is unnecessary, the detailed interest from the ferry 41 is not received, and the interest reconstruction, image collation, and image collation are performed. Do not report the collation result.

(10th Embodiment)
Next, the tenth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 21 is an overall configuration diagram of the communication system according to the tenth embodiment.

In the present embodiment, similarly to the seventh embodiment (see FIG. 15), the gateway 7 transmits the approximate interest to the camera 3 by LPWA communication. Further, the ferry 41 transfers the detailed interest to the camera 3 by short-range wireless communication (WLAN communication or the like). Further, the camera 3 determines the necessity of the collation image file based on the text data included in the approximate interest.

On the other hand, in the present embodiment, when the camera 3 needs an image file for collation, it reports to the server 2 to that effect. Then, the server 2 notifies the ferry 41 of the position information of the camera 3 that requires the image file for collation. Then, the ferry 41 of the camera 3 that requires the image file for collation from the planned route so that the detailed interest can be transferred to the camera 3 that requires the image file for collation by short-range wireless communication. Change to a route that passes around.

As described above, in the present embodiment, since the ferry 41 changes the route so as to pass around the camera 3 that requires the image file for collation, the detailed interest is surely transferred from the ferry 41 to the camera 3. Can be done. Regarding the ferry route change, even if both "passing near the station" performed in the eighth embodiment and "passing near the camera requiring detailed interest" performed in the present embodiment are performed at the same time. Good.

In addition, in this embodiment, as in the eighth embodiment, in order to change the route of the ferry 41 (moving body), in order to promote the cooperation of the person who controls the ferry 41, when cooperating with the change of the route, Incentives (card points, discount coupons, etc.) may be awarded.

Further, in the present embodiment, the server 2 notifies the ferry 41 of the position information of the camera 3 that requires the image file for collation, and this notification may be performed by an appropriate communication path. For example, when the ferry 41 passes through the communication area of the gateway 7, the gateway 7 may transmit to the ferry 41 by LPWA communication.

Next, the operation procedure of the communication system according to the tenth embodiment will be described. 22 and 23 are sequence diagrams showing the operation procedure of the communication system.

As shown in FIG. 22, first, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Next, when the gateway 7 receives the approximate interest from the server 2, the approximate interest is transmitted to the camera 3 by LPWA communication.

Next, when the camera 3 receives the approximate interest from the gateway 7, as a preprocessing, it determines the necessity of the collation image file based on the text data included in the approximate interest (image necessity determination). At this time, the camera 3 searches for an image file corresponding to the search condition described in the text data from the image files stored in the own device (image search). Then, when an image file corresponding to the search condition is found, it is determined that the image file for collation is necessary. On the other hand, when the image file corresponding to the search condition is not found, it is determined that the image file for collation is unnecessary.

Next, when the camera 3 determines that the collation image file is necessary in the preprocessing, it transmits an image necessity report to the effect that the collation image data is required to the gateway 7. In the example shown in FIG. 22, the cameras 3 of # 2 and # 3 determine that the image file for collation is necessary, and transmit the image necessity report to the gateway 7. On the other hand, the cameras 3 of # 1 and # 4 do not transmit the image necessity report to the gateway 7 because it is determined in the preprocessing that the image file for collation is unnecessary.

Next, when the gateway 7 receives the image requirement report from the camera 3, the image requirement report is transferred to the server 2. When the server 2 receives the image requirement report from the gateway 7, the verification is performed based on the information included in the image requirement report, specifically, the identification information of the camera 3 that requires the image file for verification. A device position notification (interest) including the position information of the camera 3 that requires an image file is transmitted to the ferry 41.

Next, when the ferry 41 receives the device position notification from the server 2, the ferry 41 is based on the information included in the device position notification, specifically, the position information of the camera 3 that requires the image file for collation. The passage route of the own device is changed to a route that passes near the camera 3 that requires an image file for collation (route change).

Further, as shown in FIG. 23, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network. Next, when the station 9 receives the detailed interest from the server 2, the detailed interest is transferred to the ferry 41 by short-range wireless communication (WLAN communication or the like). Next, when the ferry 41 receives the detailed interest from the station 9, the detailed interest is transferred to the camera 3 by short-range wireless communication. At this time, the ferry 41 transfers the detailed interest only to the camera 3 which determines that the image file for collation is necessary.

Next, when the camera 3 receives the detailed interest from the ferry 41, the text data included in the approximate interest is associated with the collation image file included in the detailed interest (interest reconstruction process). Next, the camera 3 collates the image file for collation with the image file found by the image search (image collation). Then, the camera 3 transmits the collation result report to the gateway 7 by LPWA communication. At this time, the camera 3 that determines that the collation image file is unnecessary in the preprocessing does not perform interest reconstruction, image collation, and collation result report. In the example shown in FIG. 1, since the cameras 3 of # 1 and # 4 determine that the image file for collation is unnecessary, interest reconstruction, image collation, and collation result report are not performed.

Next, when the gateway 7 receives the collation result report from the camera 3, the gateway 7 sends the collation result report to the low-speed route of the information-oriented network. This collation result report is received by the user terminal 1 via the server 2. This collation result report includes only the collation result of the cameras 3 (# 2, # 3) that have performed the image collation.

(11th Embodiment)
Next, the eleventh embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. The overall configuration of the communication system according to the eleventh embodiment is the same as that of the seventh embodiment (see FIG. 15).

In the present embodiment, similarly to the seventh embodiment (see FIG. 15), the gateway 7 transmits the approximate interest to the camera 3 by LPWA communication. Further, by the message ferry method, the detailed interest is transferred to the camera 3 using the ferry 41 (mobile body).

On the other hand, in the present embodiment, the camera 3 outlines the waiting time from the arrival of the approximate interest to the arrival of the detailed interest as a preprocessing of image collation using the image file for collation included in the detailed interest. Based on the text data included in the interest, a candidate image file is searched from the image files stored in the own device (candidate image search).

Here, in the text data, information regarding the content requested by the information collector, for example, position information regarding a shooting point, time information regarding a shooting time, and the like are described. In the candidate image search process, the information described in the text data is used as a search condition, and the image file corresponding to the search condition is searched. For example, when the target person is a man in the person search, only the image file in which the man appears is set as a candidate image file.

As described above, in the present embodiment, the candidate image file is searched as the pre-processing of the image collation. Therefore, in the image collation, the candidate image file found in the pre-processing may be targeted for collation. Image matching can be performed in a short time.

Next, the operation procedure of the communication system according to the eleventh embodiment will be described. 24 and 25 are sequence diagrams showing an operation procedure of the communication system according to the eleventh embodiment.

As shown in FIG. 24, first, the user terminal 1 sends an interest including text data and an image file for collation to an information-oriented network. Next, when the server 2 receives the interest from the user terminal 1, it separates the image file from the interest (image separation process), generates a schematic interest containing text data and does not include the image file, and provides information. Send to the low-speed communication route of the directional network. Next, when the gateway 7 receives the approximate interest from the server 2, the approximate interest is transmitted to the camera 3 by LPWA communication.

Next, when the camera 3 receives the approximate interest from the gateway 7, as a preprocessing, a candidate image file is selected from the image files stored in the own device based on the text data included in the approximate interest. Search (image search).

Further, as shown in FIG. 25, the server 2 generates a detailed interest including an image file and sends it to a high-speed communication route of an information-oriented network. Next, when the station 9 receives the detailed interest from the server 2, the detailed interest is transferred to the ferry 41 by short-range wireless communication (WLAN communication or the like). Next, when the ferry 41 receives the detailed interest from the station 9, the detailed interest is transferred to the camera 3 by short-range wireless communication.

Next, when the camera 3 receives the detailed interest from the ferry 41 and finds a candidate image file in the preprocessing, the text data included in the approximate interest and the collation image included in the detailed interest are included. Associate with a file (interest reconstruction process). Next, the camera 3 collates the image file for collation included in the detailed interest with the candidate image file found in the preprocessing (image collation). Then, the camera 3 transmits the collation result report to the gateway 7 by LPWA communication.

Next, when the gateway 7 receives the collation result report from the camera 3, the gateway 7 sends the collation result report to the low-speed route of the information-oriented network. This collation result report is received by the user terminal 1 via the server 2.

On the other hand, if the camera 3 does not find a candidate image file in the preprocessing, interest reconstruction, image collation, and collation result report are not performed. In the examples shown in FIGS. 24 and 25, since the candidate image file was not found in the camera 3 of # 3, interest reconstruction, image collation, and collation result report are not performed.

In the present embodiment, as a preprocessing, collection (candidate image search) is performed to search for a candidate image file from the image files stored in the own device based on the text data included in the approximate interest. However, this candidate image search is not limited to this embodiment, and can be applied to other embodiments such as the first embodiment.

(12th Embodiment)
Next, the twelfth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 26 is a block diagram showing a schematic configuration of the ferry 41 according to the twelfth embodiment.

In the present embodiment, as in the seventh embodiment (see FIG. 15), the detailed interest is transferred to the camera 3 by using the ferry 41 (moving body) by the message ferry method.

The ferry 41 includes a first communication unit 51, a second communication unit 52, a third communication unit 53, a memory 54, and a processor 55.

The first communication unit 51 performs WLAN communication with the station 9, specifically, short-range wireless communication such as WiFi (registered trademark) and WiGig (registered trademark). The first communication unit 51 receives the detailed interest from the station 9.

The second communication unit 52 performs LPWA communication with the gateway 7. The second communication unit 52 receives the approximate interest from the gateway 7. When the server 2 notifies the ferry 41 of the position information of the camera 3 that requires the image file for collation as in the tenth embodiment, the LPWA passes through the communication area of the gateway 7. It is transmitted from the gateway 7 to the ferry 41 by communication.

The third communication unit 53 performs WLAN communication with the camera 3, specifically, short-range wireless communication such as WiFi (registered trademark) and WiGig (registered trademark). The third communication unit 53 transmits the detailed interest to the camera 3. The first communication unit 51 may also serve as the third communication unit 53. If any of the first communication unit, the second communication unit, and the third communication unit adopts the same communication method, the same device can be shared. That is, if the communication method of the first communication unit and the communication method of the third communication unit are both WLAN communication, the first communication unit and the third communication unit can be shared as the same device. ..

The memory 54 stores a program or the like executed by the processor 55.

The processor 55 executes various processes related to the detailed interest transfer by executing the program stored in the memory 54.

When the vehicle becomes the ferry 41, specifically, the in-vehicle terminal mounted on the vehicle operates the ferry 41. When the pedestrian becomes the ferry 41, specifically, a mobile information terminal (for example, a smartphone) possessed by the pedestrian operates the ferry 41. Further, when the bicycle becomes the ferry 41, specifically, the mobile information terminal possessed by the bicycle driver or the in-vehicle terminal mounted on the bicycle operates the ferry 41. Mobile information terminals and in-vehicle terminals have the function of an information-oriented network. In addition, such mobiles such as vehicles and pedestrians that become the ferry 41 cooperate with mobiles that regularly pass through the target area, such as trucks of delivery companies and members of local government patrols. You may ask for it.

Further, the communication between the mobile body serving as the ferry 41 and the camera 3 may be short-range wireless communication such as WLAN communication, but when the mobile information terminal (for example, a smartphone) has a cellular communication function. The detailed interest may be transferred to the mobile body which becomes the ferry 41 by cellular communication.

(13th Embodiment)
Next, the twelfth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 27 is an explanatory diagram showing an outline of the communication system according to the twelfth embodiment.

In this embodiment, multi-hop communication is performed by a plurality of cameras 3. The camera 3 functions as a repeater, and detailed interests are sequentially transferred to the adjacent camera 3. As a result, the detailed interest is transferred to the plurality of cameras 3.

Further, in the present embodiment, the camera 3 constitutes a mesh network. That is, by connecting the plurality of cameras 3 to each other, the plurality of cameras 3 form a mesh-like transmission path as a repeater. As a result, the detailed interest can be spread to a plurality of cameras 3 existing within the required range.

In the example shown in FIG. 27, when the detailed interest is transferred from the ferry 41 to one camera 3 (# 1), the detailed interest is transferred to the adjacent cameras 3 in order. As a result, the detailed interest is transferred to all the cameras 3 constituting the mesh network.

(14th Embodiment)
Next, the thirteenth embodiment will be described. It should be noted that the points not particularly mentioned here are the same as those in the above-described embodiment. FIG. 28 is an explanatory diagram showing an outline of the communication system according to the thirteenth embodiment.

In the present embodiment, as in the seventh embodiment (see FIG. 15), the detailed interest is transferred to the camera 3 by using the ferry 41 (moving body) by the message ferry method. On the other hand, in this embodiment, a plurality of ferries 41, 42, 43 are used. Further, in this embodiment, a plurality of types of ferries 41, 42, 43 are used.

In the example shown in FIG. 28, the camera 3 receiving the detailed interest from the ferries 41, 42, 43 transfers the detailed interest to another ferry 41, 42, 43 passing by, and the ferries 41, 42, 43 are different. Transfer the detailed interest to the camera 3. Further, the camera 3 transfers the detailed interest to the ferries 41, 42, 43 of a type different from the ferry 41, 42, 43 of the transfer source.

Specifically, the detailed interest is transferred from the vehicle that becomes the ferry 41 to the cameras 3 (# 1, # 2). Next, the detailed interest is transferred from the camera 3 (# 1) to the pedestrian who becomes the ferry 42. Then, the detailed interest is transferred from the pedestrian of the ferry 42 to the cameras 3 (# 3, # 4). Further, the detailed interest is transferred from the camera 3 (# 4) to the bicycle which becomes the ferry 43. Then, the detailed interest is transferred from the bicycle to the camera 3 (# 5).

As described above, in the present embodiment, since the plurality of ferries 41, 42, 43 are used and the plurality of types of ferries 41, 42, 43 are further used, the detailed interest is transferred to the camera 3 existing in a wide range. be able to.

By the way, in the above-described embodiment, the server 2 sends a detailed interest including the image file for collation (data to be collated) to the information-oriented network, but the image file for collation is divided and each of the plurality of divided files is divided. May be sent in another detailed interest. As a result, even if the information-oriented network does not have a high-speed communication route, a large-capacity image file can be transmitted.

In this case, when the camera 3 receives the detailed interest including each of the plurality of divided files, the acquired plurality of divided files may be integrated to reproduce the original image file for collation. At this time, the camera 3 determines the necessity of the collation image file as preprocessing during the waiting time from the arrival of the approximate interest to the arrival of the detailed interest, and eliminates the need for the collation image file. If it is determined, the subsequent detailed interest may not be received. Further, in a file configuration in which the image resolution increases each time a plurality of layered divided files are received, the subsequent detailed interest occurs at the timing when the image resolution increases to the extent that the camera 3 can perform appropriate image matching. May not be received.

As described above, embodiments have been described as examples of the techniques disclosed in this application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. are made. It is also possible to combine the components described in the above embodiments to form a new embodiment.

The information collection method, the communication control device, and the content storage device according to the present invention have an effect of being able to quickly and stably transfer a large amount of data to be collated to the content storage device, and are an information collector device. Is useful as an information collection method for collecting information stored in a content storage device via an information-oriented network, a communication control device connected to the information-oriented network, a content storage device connected to the information-oriented network, and the like.

1 User terminal (information collector device)
2 Server (communication control device)
3 Camera (content storage device)
4 Router 5 Intermediate server (data storage device)
6 Server 7 Gateway (wireless distribution device)
8 Access point (wireless distribution device)
9 stations (station equipment)
11 Communication unit 12 Input unit 13 Display unit 14 Memory 15 Processor 21 Communication unit (receiver, transmitter)
22 Memory 23 Processor 31 Shooting unit 32 Communication unit (receiver, transmitter)
33 Memory 34 Processor 41, 42, 43 Ferry (mobile)

Claims (14)

An information collection method in which an information collector device collects information stored in a content storage device via an information-oriented network.
The information collector device
An interest containing the request content data and the collation target data is sent to the information-oriented network, and the interest is sent to the information-oriented network.
The communication control device connected to the information-oriented network
When the interest from the information collector device is received, the schematic interest including the request content data and not including the collation target data and the detailed interest including the collation target data are separated from the interest, and the schematic interest is separated. And send the detailed interest to the information-oriented network,
The content storage device
Upon receiving the schematic interest and the detailed interest from the communication control device, the request content data included in the schematic interest and the collation target data included in the detailed interest are associated with the request content data. Information collection characterized in that the content stored in the own device is collated with the collation target data based on the specified conditions, and a response message including the collation result is sent to the information-oriented network. Method. The communication control device
The information collecting method according to claim 1, wherein the identification information of the collation target data is added to the schematic interest. The data storage device provided on the high-speed communication path
Accumulate the collation target data included in the detailed interest,
The content storage device
The information collection method according to claim 1, wherein when the schematic interest is received, the data storage device is requested to provide the data to be collated. The communication control device is
The outline interest is transmitted to the low-speed communication path including the communication section by long-distance wireless communication while forming the information-oriented network.
The information collecting method according to claim 1, wherein the information-oriented network is configured and the detailed interest is transmitted to a high-speed communication path including a communication section by short-range wireless communication. The content storage device is
The information gathering method according to claim 1, wherein when the detailed interest is received from the communication control device, the detailed interest is transferred to another content storage device in the vicinity. The moving body
The feature is that the detailed interest is received from the station device connected to the high-speed communication path by short-range wireless communication, the detailed interest is transported, and the detailed interest is transmitted to the content storage device by short-range wireless communication. The information collection method according to claim 4. The communication control device is
Notify the moving body of the position of the station device and
The moving body is
The information gathering method according to claim 6, wherein the movement route is changed so as to pass in the vicinity of the station device, and the detailed interest is acquired from the station device. The communication control device is
The detailed interest including the divided data obtained by dividing the collation target data is transmitted to the information-oriented network.
The content storage device is
The information collecting method according to claim 1, wherein the divided data included in the detailed interest is integrated to acquire the collation target data. The content storage device is
The information collection according to claim 1, wherein preprocessing is executed based on the request content data included in the schematic interest between the time when the schematic interest is received and the time when the detailed interest is received. Method. The content storage device is
The ninth aspect of the present invention is characterized in that, as the preprocessing, the content corresponding to the outline search condition described in the request content data included in the outline interest is searched from the contents stored in the own device. Information gathering method. The content storage device is
As the preprocessing, the content corresponding to the search condition described in the request content data included in the outline interest is searched from the content stored in the own device, and the collation target data is based on the search result. The information collecting method according to claim 9, wherein the necessity of the above is determined. The content storage device is
When it is determined that the collation target data is necessary, information about the own device is transmitted to the communication control device.
The communication control device is
Information about the content storage device that requires the collation target data is notified to the moving body that transports the detailed interest.
The moving body is
The information collection according to claim 11, wherein the movement route is changed so as to pass in the vicinity of the content storage device that requires the collation target data, and the detailed interest is transferred to the content storage device. Method. A communication control device connected to an information-centric network
A receiver that receives an interest including request content data and collation target data from the information collector device, and
A processor that separates a schematic interest that includes the request content data and does not include the collation target data from the interest, and a detailed interest that includes the collation target data.
A transmitter that sends the schematic interest and the detailed interest to the information-centric network, and
A communication control device characterized by being equipped with. A content storage device connected to an information-oriented network
A receiver that receives the schematic and detailed interests from the communication controller, and
The request content data included in the outline interest is associated with the collation target data included in the detailed interest, and the content stored in the own device and the collation target are collated based on the conditions specified in the request content data. A processor that collates with data and
A transmitter that sends a response message containing the result of the collation process to the information-oriented network, and a transmitter.
A content storage device characterized by being equipped with.

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