JP2020010184A - Control arrangement and program - Google Patents

Abstract

To provide a technique for controlling moving image traffic appropriately regardless of whether the moving image traffic is encrypted.SOLUTION: A control arrangement for controlling communication traffic of a communication device includes a traffic acquisition unit for acquiring moving image traffic transmitted from the communication device, a pattern analysis unit for analyzing the traffic pattern of the moving image traffic, when it is encrypted, a content analysis unit for analyzing the content of the moving image of the moving image traffic, when it is not encrypted, and a traffic control unit for controlling the communication traffic of the communication device, on the basis of analysis results from the pattern analysis unit or the content analysis unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control device and a program.

2. Description of the Related Art There has been known a technique for controlling a communication amount by dynamically controlling a shooting frame rate according to communication contents (for example, see Patent Document 1).
[Prior art documents]
[Patent Document]
[Patent Document 1] International Publication No. 2013/145553

  It is desirable to provide a technology that can appropriately control video traffic whether the video traffic is encrypted or not.

  According to a first aspect of the present invention, there is provided a control device for controlling communication traffic of a communication device. The control device may include a traffic acquisition unit that acquires the video traffic transmitted by the communication device. The control device may include a pattern analysis unit that analyzes a traffic pattern of the moving image traffic when the moving image traffic is encrypted. The control device may include a content analysis unit that analyzes the content of the moving image of the moving image traffic when the moving image traffic is not encrypted. The control device may include a traffic control unit that controls communication traffic of the communication device based on an analysis result by the pattern analysis unit or the content analysis unit.

  The traffic control unit, among the plurality of traffic control patterns stored in a control pattern storage unit storing a plurality of traffic control patterns, a traffic control corresponding to the analysis result by the pattern analysis unit or the content analysis unit. The communication traffic of the communication device may be controlled based on the pattern. The traffic acquisition unit may receive, from a relay system that relays communication between the communication device and the Internet, the video traffic received by the relay system from the communication device, and the traffic control unit may include the pattern control unit. A control instruction for controlling the communication traffic may be transmitted to the relay system based on the analysis result by the analysis unit or the content analysis unit.

  The relay system may include a wireless device that wirelessly communicates with the communication device, and a core network that receives communication traffic received by the wireless device from the communication device from the wireless device and transmits the communication traffic to the Internet. The traffic acquisition unit may receive the video traffic from the wireless device, the traffic control unit, based on the analysis result by the pattern analysis unit or the content analysis unit, for the core network, The communication traffic of the communication device may be controlled by transmitting a change instruction for changing the bearer setting corresponding to the communication device. The traffic control unit determines whether a communication protocol of the video traffic by the communication device is UDP, and when the communication protocol is not UDP, changes a bearer setting corresponding to the communication device to the core network. An instruction may be transmitted, and in the case of UDP, a change instruction for changing the band allocation to the communication device may be transmitted to the wireless device. The traffic control unit transmits, to the wireless device, a change instruction for changing a bandwidth allocation to the communication device based on the analysis result by the pattern analysis unit or the content analysis unit. May be controlled. The wireless device may be a wireless base station that wirelessly communicates with the communication device in a communication cell of the wireless device, and the traffic control unit performs the analysis by the pattern analysis unit or the content analysis unit, and The communication traffic of the communication device may be controlled based on the congestion degree of the communication cell of the wireless device. The traffic control unit may control the communication traffic of the communication device such that the higher the congestion degree of the communication cell is, the more strongly the communication traffic of the communication device is limited. The traffic control unit may transmit, to a communication destination of the communication device, notification information generated based on a result of the analysis performed by the pattern analysis unit or the content analysis unit.

  According to a second aspect of the present invention, there is provided a program for causing a computer to function as the control device.

  The above summary of the present invention is not an exhaustive listing of all the required features of the present invention. Further, a sub-combination of these feature groups can also be an invention.

An example of the control device 100 is schematically shown. An example of the control device 100 is schematically shown. An example of the flow of processing by the control device 100 is schematically shown. An example of the control pattern table 152 is schematically shown. An example of the pattern classification table 132 is schematically shown. An example of the moving image classification table 122 is schematically shown. An example of the control device 100 is schematically shown. An example of the flow of processing by the control device 100 is schematically shown. An example of the control device 100 is schematically shown. An example of the control pattern table 154 is schematically shown. An example of the pattern classification table 134 is schematically shown. An example of the control device 100 is schematically shown. 1 schematically shows an example of a hardware configuration of a computer 1000 functioning as a control device 100.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all combinations of the features described in the embodiments are necessarily indispensable to the solution of the invention.

  FIG. 1 schematically shows an example of the control device 100. The control device 100 according to the present embodiment controls communication traffic of the communication device 300 that communicates with the network 400 via the relay system 200.

  The communication device 300 establishes a communication connection with the relay system 200, for example, and transmits traffic to and receives traffic from the network 400 via the established communication connection. In addition, transmitting traffic may be transmitting data. Receiving traffic may mean receiving data. The data is, for example, a packet.

  The communication device 300 may have a function of transmitting moving image traffic, which is moving image traffic, and transmits the moving image traffic to the network 400 via the relay system 200. The communication device 300 may have a function of receiving moving image traffic, and receives moving image traffic from the network 400 via the relay system 200. The communication device 300 may have a function of capturing a moving image by itself. Further, the communication device 300 may not have a function of capturing a moving image by itself, and may obtain a moving image captured by another device. The communication device 300 may wirelessly communicate with the relay system 200. Further, the communication device 300 may perform wired communication with the relay system 200. Examples of the communication device 300 include a network camera, a PC (Personal Computer), a mobile phone such as a smartphone, a tablet terminal, and an arbitrary IoT (Thing of Thing) device.

  The communication device 300 transmits and receives traffic to and from the relay system 200 according to an arbitrary communication protocol. Examples of the communication protocol include Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and Realtime Transport Protocol (RTP).

  The relay system 200 according to the present embodiment relays communication between the communication device 300 and the network 400. The relay system 200 may mirror the data to be relayed and transmit the data to the control device 100. For example, the relay system 200 transmits the video traffic transmitted by the communication device 300 to the network 400, and also mirrors the video traffic and transmits the video traffic to the control device 100.

  The control device 100 analyzes the received video traffic and controls the communication traffic of the communication device 300 based on the analysis result. The control device 100 includes a traffic acquisition unit 110, a content analysis unit 120, a pattern analysis unit 130, a traffic control unit 140, and a control pattern storage unit 150. The traffic acquisition unit 110 receives moving image traffic from the relay system 200.

  The content analyzing unit 120 analyzes the content of the moving image of the moving image traffic when the moving image traffic acquired by the traffic acquiring unit 110 is not encrypted. For example, the content analysis unit 120 determines to which of a plurality of types of moving images the moving image content of the moving image traffic received by the traffic obtaining unit 110 corresponds in advance.

  For example, when the video traffic is a packet, the content analysis unit 120 checks the video codec by referring to the header of the packet, and analyzes the content of the video by decoding the payload. The content analysis unit 120 may, for example, determine whether the content of the moving image is content such as sports, movies and dramas, a short movie, a commercial message (CM), a live distribution, a video of a surveillance camera, or the like. Is determined. The type of moving image is not limited to this, and may include other types. As the content analysis unit 120, a well-known moving image recognition AI (Artificial Intelligence) that recognizes the contents of a moving image from moving image data may be used.

  The pattern analysis unit 130 analyzes a traffic pattern of the video traffic when the video traffic received by the traffic acquisition unit 110 is encrypted. The pattern analysis unit 130 determines which of a plurality of traffic patterns registered in advance the traffic pattern of the video traffic received by the traffic acquisition unit 110, for example.

  For example, the pattern analysis unit 130 determines which of a plurality of traffic patterns registered in advance from the video traffic protocol, the average bandwidth of the video traffic, the content time of the video of the video traffic, and the transmission destination of the video traffic. judge. As the pattern analysis unit 130, a known traffic pattern recognition AI that recognizes a traffic pattern from video traffic may be used.

  If the video traffic received from the relay system 200 is not encrypted, the traffic acquisition unit 110 transmits the video traffic to the content analysis unit 120. If the video traffic is encrypted, the traffic acquisition unit 110 converts the video traffic into a pattern. It may be transmitted to the analysis unit 130. In addition, the traffic acquisition unit 110 may transmit the video traffic received from the relay system 200 to both the content analysis unit 120 and the pattern analysis unit 130. In this case, the content analyzing unit 120 may analyze the content of the moving image when the moving image traffic received from the traffic acquiring unit 110 is not encrypted, and may discard the moving image traffic when the moving image traffic is encrypted. The pattern analysis unit 130 may analyze a traffic pattern of the video traffic when the video traffic received from the traffic acquisition unit 110 is encrypted, and may discard the traffic pattern when the video traffic is not encrypted.

  The traffic control unit 140 controls communication traffic of the communication device 300 based on an analysis result by the content analysis unit 120 or the pattern analysis unit 130. The traffic control unit 140 transmits a control instruction for controlling the communication traffic of the communication device 300 to the relay system 200 based on the analysis result by the content analysis unit 120 or the pattern analysis unit 130, thereby reducing the communication traffic of the communication device 300. May be controlled. In accordance with the control instruction received from control device 100, relay system 200 restricts, releases, or increases the band allocated to communication device 300, for example.

  When the video traffic is not encrypted, the traffic control unit 140 controls the communication traffic of the communication device 300 based on the analysis result by the content analysis unit 120. When the moving image traffic is encrypted, the traffic control unit 140 controls the communication traffic of the communication device 300 based on the analysis result by the pattern analysis unit 130.

  The traffic control unit 140 may control communication traffic of the communication device 300 based on the control patterns stored in the control pattern storage unit 150. The control pattern storage unit 150 may store a plurality of control patterns corresponding to each of the plurality of moving image types. Further, the control pattern storage unit 150 may store a plurality of control patterns corresponding to each of the plurality of traffic patterns.

  The traffic control unit 140 reads, for example, a control pattern corresponding to the type of moving image indicated by the analysis result of the content analysis unit 120 from the control pattern storage unit 150, and controls the communication traffic of the communication device 300 based on the control pattern. I do. As a specific example, the traffic control unit 140 determines that the type of the moving image indicated by the analysis result of the content analyzing unit 120 is a moving image having a large bandwidth consumption and a long content time, such as a moving image of a sports game. The strong band limitation is applied to the communication band of the communication device 300 for a long time. In addition, when the type of the moving image indicated by the analysis result by the content analyzing unit 120 is a relatively short short moving image uploaded to the moving image posting site, the traffic control unit 140 sets a weak band limitation on the communication band of the communication device 300. Apply for a short time. Specific band limiting amounts of the strong band limiting and the weak band limiting may be arbitrarily determined. The respective times for a long-time application and a short-time application may be arbitrarily determined.

  The traffic control unit 140 reads, for example, a control pattern corresponding to the traffic pattern indicated by the analysis result of the pattern analysis unit 130 from the control pattern storage unit 150, and controls the communication traffic of the communication device 300 based on the control pattern. . As a specific example, the traffic control unit 140 determines that the traffic pattern indicated by the analysis result of the pattern analysis unit 130 is a pattern in which large traffic occurs regularly, and has a large average bandwidth and a long content time. A strong band limitation is applied to the communication band of the communication device 300 for a long time. In addition, the traffic control unit 140 determines whether the traffic pattern indicated by the analysis result of the pattern analysis unit 130 is a pattern in which large traffic occurs regularly, and has a small average bandwidth and a short content time. A weak band limitation is applied to 300 communication bands for a short time. The threshold for determining whether the average band is large or small may be arbitrarily determined. Further, a threshold value for stabilizing whether the content time is long or short may be arbitrarily determined.

  By performing the above-described processing by the control device 100, the video traffic of the communication device 300 can be appropriately controlled whether the video traffic is encrypted or not.

  FIG. 2 schematically illustrates an example of the control device 100. FIG. 2 illustrates a case where the control device 100 is applied to a carrier network 10 provided by a communication carrier. FIG. 2 exemplifies a wireless device 210 and a core network 220 as the relay system 200. In the example shown in FIG. 2, the network 400 is, for example, the Internet.

  The wireless device 210 performs wireless communication with the communication device 300. The wireless device 210 transmits the traffic received from the communication device 300 to the core network 220. The wireless device 210 transmits the traffic addressed to the communication device 300 received from the core network 220 to the communication device 300. The wireless device 210 is, for example, a wireless base station such as an eNB (evolved NodeB). The core network 220 transmits the traffic received from the wireless device 210 to the network 400 for the communication destination of the communication device 300.

  In this example, the traffic acquisition unit 110 receives moving image traffic from the wireless device 210. Then, the traffic control unit 140 transmits a control instruction for controlling the communication traffic of the communication device 300 to the core network 220 based on the analysis result of the moving image traffic by the content analysis unit 120 or the pattern analysis unit 130.

  The traffic control unit 140 transmits, for example, a change instruction to change the bearer setting to the communication device 300 to the core network 220. The core network 220 changes the bearer setting for the communication device 300 according to the change instruction received from the traffic control unit 140. For example, the core network 220 limits the communication traffic of the communication device 300 by changing the bearer setting for the communication device 300 in accordance with the change instruction, thereby reducing the bandwidth allocated to the communication device 300.

  With the spread of 5G (5th Generation) and IoT businesses, network cameras such as surveillance cameras and vehicle-mounted cameras are expected to spread. Since the bandwidth used for uploading moving image data is very large, a communication carrier needs a mechanism for controlling traffic while considering the application and communication characteristics of the application. However, the conventional communication control of the network camera is control from the server mainly by the application provider or control performed by the camera device itself. When the communication provider performs band control at its own convenience, the QoE (Quality of Service) of the user is remarkable. (Experience). In addition, in the spread of IoT, a large number of network cameras will be installed, so cameras with lower cost and simpler functions or existing cameras are required. is there.

  According to the control device 100 according to the present embodiment, since the control device 100 includes both the content analysis unit 120 and the pattern analysis unit 130, the communication carrier can grasp the video content of the network camera and the like, Bandwidth control without deteriorating the QoE of the camera, and the communication volume control can be realized irrespective of the specifications of the camera device. Therefore, even if a large number of inexpensive cameras are introduced, the bandwidth control can be performed. Will be possible. With these, the above-described problem can be solved.

  Control device 100 may be arranged at any position in carrier network 10. The control device 100 may be arranged in an MEC (Mobility Edge Computing). Further, control device 100 may be the MEC itself.

  FIG. 3 schematically illustrates an example of the flow of a process performed by the control device 100. Here, control device 100 knows in advance the ID / IP address and the like assigned to communication device 300 from information such as the communication destination of communication device 300, and the bandwidth managed by relay system 200 is congested. Assuming that the control is performed, a flow of processing until control of communication traffic of the communication device 300 is started will be described.

  In step (step may be abbreviated as S) 102, traffic acquisition section 110 receives a mirroring packet of moving image traffic from wireless device 210. In S104, the traffic acquisition unit 110 determines whether the communication content is encrypted. If it is determined that the data is encrypted, the process proceeds to S106. If it is determined that the data is not encrypted, the process proceeds to S108.

  In S106, the pattern analysis unit 130 analyzes the traffic pattern of the video traffic. In S108, the content analysis unit 120 analyzes the content of the moving image of the moving image traffic.

  In S110, the traffic control unit 140 acquires a control pattern corresponding to the analysis result in S106 or S108 from the control pattern storage unit 150. In S112, the traffic control unit 140 changes the bearer setting of the GW (Gateway) device of the core network 220 according to the control pattern acquired in S110, and reduces the bandwidth allocated to the communication device 300.

  The traffic control unit 140 reduces the allocated bandwidth of the communication device 300, for example, when the type of moving image is a captured image of a sport or a traffic pattern is a pattern in which large traffic occurs periodically. Instead, if the type of moving image is a monitoring camera image or the traffic pattern is a pattern in which small traffic continues regularly, the bandwidth allocated to the communication device 300 is changed unless the amount of communication traffic fluctuates significantly. Reduce. As a result, the assigned bandwidth is reduced during a period in which no significant change occurs in the monitoring camera image. Since the video in such a period has low importance, the allocated bandwidth can be reduced without impairing the user's QoE.

  FIG. 4 schematically shows an example of the control pattern table 152. The control pattern table 152 illustrated in FIG. 4 illustrates four control patterns. The number of control patterns registered in the control pattern table 152 may be any number. The control pattern table 152 illustrated in FIG. 4 illustrates a case where the items include a control pattern number, band limitation availability_degree, packet drop availability, and control time as items, but the control pattern table 152 includes other items. Items may be included.

  In the example illustrated in FIG. 4, the control pattern 1 is a pattern in which band limitation is possible, the degree of band limitation is strong, packet drop is not possible, and control time is long. The control pattern 2 is a pattern in which band limitation is possible, the degree of band limitation is weak, packet drop is not possible, and control time is short. The control pattern 3 is a pattern in which the band can be limited, the degree of the band limitation is weak, the packet cannot be dropped, and the control time is long. The control pattern 4 is a pattern in which the band can be limited, the degree of the band limitation is strong, the packet can be dropped, and the control time is short.

  FIG. 5 schematically shows an example of the pattern classification table 132. The pattern classification table 132 illustrated in FIG. 5 illustrates five traffic patterns. The number of traffic patterns registered in the pattern classification table 132 may be any number. The pattern classification table 132 illustrated in FIG. 5 illustrates a case including items such as a traffic pattern, a protocol, an average bandwidth, a content time, a communication destination, and a control pattern number. Items may be included.

  In the example illustrated in FIG. 5, A1 indicates that large traffic occurs periodically, the protocol is TCP, the average bandwidth is large, the content time is long, the communication destination is aaa, and the corresponding control pattern is control pattern 2. Is a traffic pattern. A2 indicates a traffic pattern in which large traffic occurs periodically, the protocol is TCP, the average bandwidth is small, the content time is short, the communication destination is bbbb, and the corresponding control pattern is control pattern 1. A3 indicates a traffic pattern in which small traffic continues periodically, the protocol is TCP, the average bandwidth is small, the communication destination is cccc, and the corresponding control pattern is control pattern 3. A4 is a traffic pattern that randomly fluctuates around the central throughput, the protocol is UDP, the average bandwidth is large, the content time is long, the communication destination is dddd, and the corresponding control pattern is control pattern 3. Is shown. A5 is a traffic pattern that randomly fluctuates around the central throughput, the protocol is UDP, the average bandwidth is small, the content time is long, the communication destination is eee, and the corresponding control pattern is control pattern 3. Is shown.

  The pattern analysis unit 130 may analyze the video traffic to determine which traffic pattern in the pattern classification table 132 corresponds to the traffic pattern of the video traffic. The traffic control unit 140 may read a control pattern corresponding to the traffic pattern determined by the pattern analysis unit 130 from the control pattern table 152.

  FIG. 6 schematically shows an example of the moving image classification table 122. The moving image classification table 122 illustrated in FIG. 6 illustrates five moving image types. The number of types of moving images registered in the moving image classification table 122 may be an arbitrary number. Although the moving image classification table 122 illustrated in FIG. 6 illustrates a case where the items include a content content, a protocol, a bandwidth consumption, a content time, and a control pattern number, the moving image classification table 122 includes other items. May be included.

  In the example shown in FIG. 6, B1 is a moving image whose content is sports / movie / drama, etc., whose protocol is TCP, bandwidth consumption is large, content time is long, and the corresponding control pattern is control pattern 1. Indicates the type of B2 indicates a type of a moving image in which the content is a short moving image, the protocol is TCP, the bandwidth consumption is large, the content time is short, and the corresponding control pattern is the control pattern 2. B3 indicates the type of moving image in which the content is CM, the protocol is TCP, the bandwidth consumption is small, the content time is short, and the corresponding control pattern is control pattern 2. B4 indicates the type of moving image whose content is live distribution, whose protocol is UDP, whose bandwidth is large, the content time is long, and the corresponding control pattern is control pattern 3. B5 indicates the type of moving image in which the content is monitoring, the protocol is UDP, the bandwidth consumption is small, the content time is long, and the corresponding control pattern is control pattern 4.

  The content analysis unit 120 may analyze the content of the moving image of the moving image traffic and determine which moving image type in the moving image classification table 122 the moving image corresponds to. The traffic control unit 140 may read a control pattern corresponding to the type of moving image determined by the content analysis unit 120 from the control pattern table 154.

  FIG. 7 schematically illustrates an example of the control device 100. Here, differences from FIG. 2 will be mainly described. The traffic control unit 140 of the control device 100 illustrated in FIG. 7 controls the communication traffic of the communication device 300 by transmitting an instruction to control the communication traffic of the communication device 300 to the wireless device 210.

  The traffic control unit 140 transmits a change instruction to change the bandwidth allocation to the communication device 300 to the wireless device 210 based on the analysis result of the content analysis unit 120 or the pattern analysis unit 130, for example. Control 300 communication traffic. In addition, the traffic control unit 140 determines, for example, whether or not the protocol of the moving image traffic by the communication device 300 is UDP. If the protocol is not UDP, the traffic control unit 140 changes the bearer setting for the communication device 300 to the core network 220. An instruction is transmitted, and in the case of UDP, a change instruction for changing the bandwidth allocation to the communication device 300 is transmitted to the wireless device 210.

  FIG. 8 schematically illustrates an example of the flow of a process performed by the control device 100. Here, differences from FIG. 3 will be mainly described.

  In S202, the traffic acquisition unit 110 receives a mirroring packet of moving image traffic from the wireless device 210. In S204, the traffic acquisition unit 110 determines whether the communication contents are encrypted. If it is determined that the data is encrypted, the process proceeds to S206. If it is determined that the data is not encrypted, the process proceeds to S208. In S206, the pattern analysis unit 130 analyzes the traffic pattern of the video traffic. In S208, the content analysis unit 120 analyzes the content of the moving image of the moving image traffic. In S210, the traffic control unit 140 acquires a control pattern corresponding to the analysis result in S206 or S208 from the control pattern storage unit 150.

  In S212, the traffic control unit 140 determines whether the communication protocol of the moving image traffic by the communication device 300 is UDP. If the communication protocol is not UDP but TCP or the like, the process proceeds to S214, and if the communication protocol is UDP, the process proceeds to S216.

  In S214, the traffic control unit 140 changes the bearer setting of the GW device of the core network 220 according to the control pattern acquired in S210, and reduces the allocated bandwidth of the communication device 300. In S216, the traffic control unit 140 reduces the bandwidth allocation to the communication device 300 in the wireless device 210 according to the communication load. The traffic control unit 140 drops, for example, a UDP packet. As a specific example, the traffic control unit 140 limits the buffer of the UDP packet or increases the limit of the buffer of the UDP packet.

  FIG. 9 schematically illustrates an example of the control device 100. Here, differences from FIG. 7 will be mainly described. FIG. 9 illustrates a case where wireless device 210 is wireless base station 212 that wirelessly communicates with communication device 300 in a communication cell. The traffic control unit 140 of the control device 100 shown in FIG. 9 controls the communication traffic of the communication device 300 based on the analysis result by the content analysis unit 120 or the pattern analysis unit 130 and the information received from the wireless base station 212. .

  The traffic control unit 140 receives, for example, the congestion degree of a communication cell from the radio base station 212. The traffic control unit 140 controls the communication traffic of the communication device 300 based on the analysis result by the content analysis unit 120 or the pattern analysis unit 130 and the congestion degree of the communication cell of the wireless base station 212. The traffic control unit 140 controls the communication traffic of the communication device 300 such that, for example, the higher the congestion degree of the communication cell of the wireless device 210 is, the more the communication traffic of the communication device 300 is restricted.

  FIG. 10 schematically shows an example of the control pattern table 154. Here, differences from the control pattern table 152 shown in FIG. 4 will be mainly described. The control pattern table 154 shown in FIG. 10 includes control patterns 5 to 8 in addition to control patterns 1 to 4.

  FIG. 11 schematically shows an example of the pattern classification table 134. Here, differences from the pattern classification table 132 shown in FIG. 5 will be mainly described. The pattern classification table 134 shown in FIG. 11 includes a cell congestion degree as an item.

  As shown in FIGS. 10 and 11, the pattern classification table 134 may include the cell congestion degree as an item, and the control pattern table 154 indicates that the pattern classification table 134 includes combinations that increase by the amount of the cell congestion degree. A corresponding control pattern may be included. Thus, the communication traffic of the communication device 300 can be appropriately restricted in consideration of the degree of cell congestion of the wireless device 210.

  FIG. 12 schematically illustrates an example of the control device 100. Here, differences from FIG. 2 will be mainly described. Traffic control unit 140 of control device 100 shown in FIG. 12 transmits notification information generated based on the analysis result by content analysis unit 120 or pattern analysis unit 130 to the communication destination of communication device 300.

  Here, an example will be described in which the communication device 300 is a monitoring camera and the communication destination of the communication device 300 is an APP server 410 that performs camera monitoring. The communication device 300 continuously transmits the captured image of the monitoring target area to the APP server 410 via the wireless device 210, the core network 220, and the network 400. The APP server 410 stores the received captured image. In addition, the stored captured image is viewed by an operator or the like to check whether an abnormality has occurred in the monitoring target area. Here, if the operator is not always viewing the captured image, the operator may not immediately notice that an abnormality has occurred in the imaging target area.

  The traffic control unit 140 according to the present embodiment, when the analysis result of the content analysis unit 120 indicates that an abnormality has occurred in the monitoring target area, notifies that the abnormality may have occurred in the monitoring target area. The notification data is transmitted to the APP server 410. In addition, when the analysis result of the pattern analysis unit 130 indicates that the traffic volume has suddenly increased from the state where the traffic is constantly continued, the traffic control unit 140 determines that an abnormality has occurred in the monitoring target area. The notification data for notifying that it may have occurred is transmitted to the APP server 410. Thus, the occurrence of an abnormality in the monitoring target area that the APP server 410 has not noticed can be notified to the APP server 410 from the communication carrier.

  FIG. 13 schematically illustrates an example of a hardware configuration of a computer 1000 functioning as the control device 100. The computer 1000 according to the present embodiment includes a CPU peripheral portion including a CPU 1010 and a RAM 1030 interconnected by a host controller 1092, a ROM 1020 connected to the host controller 1092 by an input / output controller 1094, a communication I / F 1040, and a hard disk drive 1050. , And an input / output unit having an input / output chip 1080.

  The CPU 1010 operates based on programs stored in the ROM 1020 and the RAM 1030, and controls each unit. The communication I / F 1040 communicates with another device via a network by wire or wirelessly. The communication I / F 1040 functions as hardware for performing communication. The hard disk drive 1050 stores programs and data used by the CPU 1010.

  The ROM 1020 stores a boot program executed by the computer 1000 at the time of startup, a program depending on hardware of the computer 1000, and the like. The input / output chip 1080 connects various input / output devices to the input / output controller 1094 via, for example, a parallel port, a serial port, a keyboard port, a mouse port, and the like.

  The program provided to the hard disk drive 1050 via the RAM 1030 is stored in a recording medium such as an IC card and provided by the user. The program is read from the recording medium, installed on the hard disk drive 1050 via the RAM 1030, and executed by the CPU 1010.

  A program installed in the computer 1000 and causing the computer 1000 to function as the control device 100 may act on the CPU 1010 or the like to cause the computer 1000 to function as each unit of the control device 100. The information processing described in these programs is read into the computer 1000, and the traffic acquisition unit 110, the content analysis unit 120, It functions as the pattern analysis unit 130, the traffic control unit 140, and the control pattern storage unit 150. Then, by using these specific means, calculation or processing of information according to the purpose of use of the computer 1000 in the present embodiment is realized, whereby a specific control device 100 corresponding to the purpose of use is constructed.

  In the above embodiment, an example in which the control device 100 controls the communication traffic of the communication device 300 when the moving image traffic is transmitted from the communication device 300 to the network 400 has been mainly described, but the present invention is not limited to this. The control device 100 may control the communication traffic of the communication device 300 when the communication device 300 receives the moving image traffic from the network 400.

  As described above, the present invention has been described using the embodiments, but the technical scope of the present invention is not limited to the scope described in the above embodiments. It is apparent to those skilled in the art that various changes or improvements can be made to the above embodiment. It is apparent from the description of the appended claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of processes such as operations, procedures, steps, and steps in the apparatuses, systems, programs, and methods shown in the claims, the description, and the drawings is particularly “before”, “before” It should be noted that they can be realized in any order as long as the output of the previous process is not used in the subsequent process. Regarding the operation flow in the claims, the specification, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to implement in this order. Not something.

1, 2, 3, 4, 5, 8 control pattern, 10 carrier network, 100 control device, 110 traffic acquisition unit, 120 content analysis unit, 122 video classification table, 130 pattern analysis unit, 132 pattern classification table, 134 pattern classification Table, 140 traffic control unit, 150 control pattern storage unit, 152 control pattern table, 154 control pattern table, 200 relay system, 210 wireless device, 212 wireless base station, 220 core network, 300 communication device, 400 network, 410 APP server , 1000 computer, 1010 CPU, 1020 ROM, 1030 RAM, 1040 communication I / F, 1050 hard disk drive, 1080 input / output chip, 1092 host computer Roller, 1094 input and output controller

Claims (11)

A control device for controlling communication traffic of the communication device,
A traffic acquisition unit that acquires video traffic transmitted by the communication device;
A pattern analysis unit that analyzes a traffic pattern of the video traffic when the video traffic is encrypted;
When the video traffic is not encrypted, a content analysis unit that analyzes the content of the video of the video traffic,
A traffic control unit that controls communication traffic of the communication device based on an analysis result by the pattern analysis unit or the content analysis unit.   The traffic control unit, among the plurality of traffic control patterns stored in a control pattern storage unit that stores a plurality of traffic control patterns, a traffic control corresponding to the analysis result by the pattern analysis unit or the content analysis unit The control device according to claim 1, wherein the control device controls communication traffic of the communication device based on a pattern. The traffic acquisition unit, from a relay system that relays communication between the communication device and the Internet, receives the video traffic that the relay system has received from the communication device,
The control device according to claim 1, wherein the traffic control unit transmits a control instruction for controlling the communication traffic to the relay system based on a result of the analysis performed by the pattern analysis unit or the content analysis unit. The relay system,
A wireless device that wirelessly communicates with the communication device;
The control device according to claim 3, further comprising: a core network configured to receive communication traffic received by the wireless device from the communication device from the wireless device and transmit the communication traffic to the Internet. The traffic acquisition unit receives the video traffic from the wireless device,
The traffic control unit, based on the analysis result by the pattern analysis unit or the content analysis unit, to the core network, by transmitting a change instruction to change the bearer settings corresponding to the communication device, The control device according to claim 4, which controls communication traffic of the communication device.   The traffic control unit determines whether a communication protocol of the video traffic by the communication device is UDP. If the communication protocol is not UDP, the traffic control unit changes a bearer setting corresponding to the communication device to the core network. The control device according to claim 5, wherein the control device transmits an instruction and, in the case of UDP, a change instruction for changing a bandwidth allocation to the communication device to the wireless device.   The traffic control unit transmits, to the wireless device, a change instruction for changing a bandwidth allocation to the communication device, based on the analysis result by the pattern analysis unit or the content analysis unit, so that the communication device The control device according to claim 4, wherein the control device controls communication traffic. The wireless device is a wireless base station that wirelessly communicates with the communication device in a communication cell of the wireless device,
The traffic controller according to claim 5, wherein the traffic controller controls communication traffic of the communication device based on a result of the analysis performed by the pattern analyzer or the content analyzer and a congestion degree of a communication cell of the wireless device. The control device according to claim 1.   The control device according to claim 8, wherein the traffic control unit controls the communication traffic of the communication device such that the communication traffic of the communication device is strongly limited as the congestion degree of the communication cell increases.   9. The communication device according to claim 3, wherein the traffic control unit transmits notification information generated based on a result of the analysis performed by the pattern analysis unit or the content analysis unit to a communication destination of the communication device. 10. The control device according to claim 1.   A program for causing a computer to function as the control device according to any one of claims 1 to 10.

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