JP2021097394A - Communication device, communication method, and program - Google Patents

Abstract

To provide a communication device that can increase the number of overall communicable users.SOLUTION: A communication device determines whether or not to disconnect communication with another communication device via a communication satellite depending on the communication condition of the communication device and communicates the determination result that the communication is to be disconnected to a line control unit for allocating communication frequencies and allocating a communication frequency to communication of the other communication device in response to receiving the determination result when it is determined to disconnect the communication. The communication device determines whether or not to resume a connection for the communication depending on the communication condition of the communication device and transmits a resumption notification signal indicating that the connection for the communication is to be resumed to the line control unit that allocates a communication frequency to the communication device in response to receiving the resumption notification signal when it is determined to resume the connection for the communication.SELECTED DRAWING: Figure 1

Description

The present invention relates to a communication device, a communication method, and a program.

In communication, if a large number of frequency bands can be secured, many users can communicate at the same time. However, in the case of communication with a small number of allocated frequency bands, for example, communication using satellite communication, the number of users who can communicate at the same time is limited by the number of the frequency bands.
Patent Document 1 discloses a technique for efficiently using a satellite line as a related technique.

Japanese Unexamined Patent Publication No. 2002-164827

By the way, as described above, in the case of communication in which the assigned frequency band is small, the number of users who can communicate at the same time is limited by the number of the frequency bands. Therefore, in communication with a small number of allocated frequency bands, there is a demand for a technology capable of increasing the number of users who can communicate with the communication system as a whole.

Each aspect of the present invention aims to provide a communication device, a communication method, and a program capable of solving the above problems.

In order to achieve the above object, according to one aspect of the present invention, the communication device determines whether or not to disconnect the communication with another device via the communication satellite based on the communication status of the own device. , A line control device that allocates a determination result indicating that the communication is disconnected when it is determined to disconnect the communication, and the frequency of the communication is set to another device based on the reception of the determination result. It is determined whether or not to resume the connection of the communication based on the means for transmitting to the line control device assigned to the communication and the communication status of the own device, and when it is determined that the connection of the communication is resumed, the connection of the communication is performed. The present invention includes means for transmitting a restart notification signal indicating that the operation is restarted to the line control device that allocates the communication frequency to the own device based on the reception of the restart notification signal.

In order to achieve the above object, according to another aspect of the present invention, the communication method determines whether or not to disconnect the communication with another device via the communication satellite based on the communication status of the own device. Then, when it is determined that the communication is disconnected, the determination result indicating that the communication is disconnected is given to the line control device that allocates the frequency of the communication, and the frequency of the communication is set to another device based on the reception of the determination result. It is transmitted to the line control device assigned to the communication of, and it is determined whether or not to restart the connection of the communication based on the communication status of the own device, and when it is determined that the connection of the communication is restarted, the connection of the communication is made. A restart notification signal indicating restart is transmitted to the line control device that assigns the frequency of the communication to the own device based on the reception of the restart notification signal.
In order to achieve the above object, according to another aspect of the present invention, the program disconnects the computer of the communication device from communication with another device via the communication satellite based on the communication status of the own device. It is a line control device that allocates the frequency of the communication, and the determination result indicating that the communication is disconnected when it is determined that the communication is disconnected is determined based on the reception of the determination result. When it is determined whether or not to resume the connection of the communication based on the means for transmitting the frequency of the above to the line control device assigned to the communication of the other device and the communication status of the own device, and it is determined that the connection of the communication is resumed. To function as a means for transmitting a restart notification signal indicating that the connection of the communication is restarted to the line control device that allocates the frequency of the communication to the own device based on the reception of the restart notification signal.
In order to achieve the above object, according to another aspect of the present invention, the communication system has an operation history indicating the past operation of the first user and environmental information indicating the usage environment of the terminal used by the first user. Information including the above, which stores information used for determining whether or not the first communication line being used by the first user can be disconnected and whether or not the disconnected first communication line is connected. A second communication line in which the first communication line is disconnected based on the storage unit and the information stored in the storage unit, and the frequency band assigned to the disconnected first communication line is used by the second user. When it is determined that the first communication line is connected based on the information stored in the storage unit, the second communication line is disconnected and the second communication line is connected. A control unit that allocates the frequency band to the first communication line and connects the first communication line is provided.
In order to achieve the above object, according to another aspect of the present invention, the line connection method is an operation history showing the past operation of the first user and an environment showing the usage environment of the terminal used by the first user. Information including information, which is used for determining whether or not the first communication line being used by the first user can be disconnected and whether or not the disconnected first communication line is connected. The frequency band is allocated to the second communication line used by the second user by storing and disconnecting the first communication line based on the information and assigning the frequency band assigned to the disconnected first communication line to the second communication line. When the second communication line is connected and it is determined that the first communication line is to be connected based on the information, the second communication line is disconnected, the frequency band is assigned to the first communication line, and the frequency band is assigned. Includes connecting the first communication line.

According to each aspect of the present invention, it is possible to increase the number of users who can communicate with the communication system as a whole.

It is a figure which shows an example of the structure of the communication system by one Embodiment of this invention. It is a figure which shows an example of the structure of the 1st communication apparatus by one Embodiment of this invention. It is a figure which shows an example of the structure of the 2nd communication apparatus by one Embodiment of this invention. It is a figure which shows an example of the structure of the 3rd communication apparatus by one Embodiment of this invention. It is a figure which shows an example of the processing flow of the communication system by one Embodiment of this invention. It is a figure which shows the communication system of the minimum configuration by embodiment of this invention. It is a figure which shows the communication apparatus of the minimum structure by embodiment of this invention. It is a schematic block diagram which shows the structure of the computer which concerns on at least one Embodiment.

Hereinafter, embodiments will be described in detail with reference to the drawings.
<Embodiment>
In the communication system 1 according to the embodiment of the present invention, a communication line is assigned to the first user, but while data communication is not performed on the communication line, the communication line is assigned to the second user for data. It is a communication system. Further, the communication system 1 is a system in which a second user performs data communication via the communication line and then reassigns the communication line to the first user without the first user connecting to the communication line. is there.
For example, the communication system 1 is a system that communicates via a communication satellite. When the communication system 1 is a system that communicates via a communication satellite, the frequency band that can be used for the communication line when the communication satellite is used is small, so that the communication efficiency due to the allocation of the communication line to the user in the communication system 1 is improved. The effect of improvement is more likely to be obtained than when there are many frequency bands. Therefore, the communication system 1 that communicates via the communication satellite will be described below. However, the communication system 1 is not limited to a system that communicates via a communication satellite.
It should be noted that the transmission / reception of signals for controlling the communication path (that is, controlling the connection of the communication line and the disconnection of the communication line) between the devices has a narrow frequency band different from that of the communication line and can always be communicated. It is performed using a line (control-only line). That is, the following data communication is disconnected from the control-dedicated line between the first communication device 10 and the third communication device 30 and the control-dedicated line between the second communication device 20 and the third communication device 30. Even if it is maintained.

As shown in FIG. 1, the communication system 1 includes a first communication device 10, a second communication device 20, a third communication device 30, and communication satellites 40 and 50.

The first communication device 10 is a communication device used by the first user. The first communication device 10 communicates with the third communication device 30 via the communication satellite 40.
As shown in FIG. 2, the first communication device 10 includes a wireless device 101, a GW (Gateway) device 102, a line control device 103, a terminal 104 (an example of a determination unit), a terminal 105 (an example of a determination unit), and data storage. It is a computer system including a device 106 (an example of a storage unit). The first communication device 10 may be a computer device having the functions of the wireless device 101, the GW device 102, and the line control device 103.
The broken line in FIG. 2 indicates a network line. The solid line in FIG. 2 indicates a communication line.

The wireless device 101 is a wireless device that communicates with the third communication device 30 via the communication satellite 40.
For example, the wireless device 101 includes a modem, a frequency converter, an amplifier, an antenna, and the like. The wireless device 101 transmits and receives communication data between the first communication device 10 and the third communication device 30.

The GW device 102 is a device that controls a path for communication.
Specifically, the GW device 102 controls (that is, determines) a route for transmitting communication data to the wireless device 101. Further, the GW device 102 controls a route for transmitting the communication data received by the wireless device 101 to the terminal 104, the terminal 105, and the line control device 103. Further, the GW device 102 controls the wireless device 101 in response to the instruction signal of the line control device 103, and controls the communication line used for communication by changing the frequency band used for communication.

The line control device 103 is a device that manages the line of the first communication device 10. The line control device 103 obtains a determination result indicating communication disconnection or communication resumption based on the communication status / disconnectability status of the terminals 104 and 105 from the recognition SW. The line control device 103 transmits to the third communication device 30 a determination result indicating communication disconnection or communication resumption based on the obtained communication status / disconnectability status. Further, the line control device 103 controls the GW device 102 according to the control signal received from the third communication device 30, thereby connecting the communication line in the first communication device 10, disconnecting the communication line, and prioritizing management of the communication line. It is a control device that performs.

Each of the terminals 104 and 105 is a terminal that can be used by a user in a place where the first communication device 10 is installed (hereinafter, referred to as "user A", user A is an example of the first user). Recognition software (described as "recognition SW" in FIGS. 2 to 4) for determining whether or not communication is being performed is installed in each of the terminals 104 and 105.
For example, the recognition software (hereinafter referred to as recognition SW) is packet capture software, and each of the terminals 104 and 105 captures packets flowing through a communication line to display the contents, analyze, and aggregate the contents. By doing so, the amount of data communication (traffic) flowing through the network and its changes are specified. Then, it is determined that each of the terminals 104 and 105 is in a state of not communicating when the communication amount is zero, and is in a state of communicating when the communication amount is not zero. It should be noted that determining that each of the terminals 104 and 105 is in a state of communication is equivalent to determining that the communication line cannot be disconnected. Further, determining that each of the terminals 104 and 105 is not communicating is equivalent to determining that the communication line can be disconnected.
Further, the recognition SW is software for each of the terminals 104 and 105 to specify the operating status of the user A. For example, by the recognition SW, each of the terminals 104 and 105 has the mouse cursor moving (that is, the user A is moving the mouse) or the character is input (that is, the user A is inputting the character). What is the displayed WEB site (that is, what WEB site is the user A looking at), and whether the user A is captured by the cameras of the terminals 104 and 105 (that is, the user A is the terminal 104). , Are you sitting in the seat in front of 105) and so on. A technique such as face recognition may be used to identify the user in the camera.

The data storage device 106 is a device that stores data indicating a criterion for determination performed by each of the terminals 104 and 105 using the recognition SW.
For example, the data storage device 106 stores information indicating the communication tendency of the user A as data indicating a determination criterion. Examples of the information indicating the communication tendency of the user A include an operation history indicating the past operation of the user A, environment information indicating the usage environment of the terminals 104 and 105 of the user A, and the like.
Specific examples of the operation history of the user A include the time when the user A sits in front of the terminals 104 and 105, the time when the user A sits in front of the terminals 104 and 105, and the like.
Specific examples of the environment information of the user A are the time when the user A actually starts the data communication in each time zone, the time when the data communication ends, the amount of communication in the data communication, the opportunity to perform the data communication, and the like. .. The opportunity for data communication is information indicating when the user A starts data communication. For example, when the user A sits in the seat in front of the terminals 104 and 105 and the user A always starts data communication, "the user A sits in the seat in front of the terminals 104 and 105" is an opportunity. Further, for example, when the user A sits in the seat in front of the terminals 104 and 105 at a specific time zone and the user A always starts data communication, the "user A is the terminal 104 and 105 at a specific time zone". "Sit in the seat in front of you" is an opportunity.

Each of the recognition SWs of the terminals 104 and 105 communicates in use by the user A based on the operation history of the user A and the environmental information of the user A accumulated in the data storage device 106 and the current operation of the user A. It is possible to determine whether or not the line can be disconnected. Alternatively, each of the recognition SWs of the terminals 104 and 105 is used by the user A based on at least one of the operation history of the user A stored in the data storage device 106, the environmental information of the user A, and the current operation of the user A. It is possible to determine whether or not the communication line inside can be disconnected.
For example, each of the recognition SWs of the terminals 104 and 105 determines whether or not the user A is sitting in the seat in front of the own terminal based on the operation history of the user A accumulated in the data storage device 106 and the environment information of the user A. Regardless, if it is analyzed that communication is being performed automatically (that is, without user A's operation) at a specific time on a specific day of the week, user A is in use at a specific time on that specific day of the week. It is determined that the communication line cannot be disconnected (that is, the communication line being used by user A cannot be temporarily assigned to another user).

Further, for example, when the user A is sitting in the seat in front of the own terminal at a time other than the specific time on the above-mentioned specific day of the week, the user A communicates with each of the recognition SWs of the terminals 104 and 105. It is determined that the user A cannot disconnect the communication line in use (that is, the communication line in use by the user A cannot be temporarily assigned to another user). Further, when the user A is not sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the user A is not communicating with the recognition SWs of the terminals 104 and 105, respectively. It is determined that the user A can disconnect the communication line in use (that is, the communication line in use by the user A can be temporarily assigned to another user). Also, when user A is not sitting in front of the terminal at a time other than a specific time on a specific day of the week and user A temporarily assigns the communication line in use to another user. When the user A returns (sits) to the seat in front of the own terminal, the recognition SWs of the terminals 104 and 105 each resume the communication (that is, the communication that the user A has disconnected to allocate to another user). The line needs to be in a state where user A can communicate).

Each of the recognition SWs of the terminals 104 and 105 determines whether or not the communication line being used by the user A can be disconnected by using only the environment information of the user A stored in the data storage device 106. May be good. The environmental information is an example of information on the communication status and disconnection availability status. In this case, the data storage device 106 stores information indicating the past communication history of the user A (data communication start time, data communication end time, etc.) and the amount of communication at each time as environmental information data. .. Then, each of the recognition SWs of the terminals 104 and 105 has the same time range of the past day of the week corresponding to today's day of the week (for example, a range from 1 hour before to 1 hour after the current time) in a predetermined time range including the current time. Etc.) to determine if there is a communication history. In this determination, each of the recognition SWs of the terminals 104 and 105 determines that the connection cannot be made if there is a communication history in the same time range of the past day of the week corresponding to today's day of the week, and the past day of the week corresponding to today's day of the week. If there is no communication history in the same time range, it may be determined that the disconnection is possible.

Each of the recognition SWs of the terminals 104 and 105 determines whether or not the communication line in use by the user A can be disconnected based only on the operation history of the user A accumulated in the data storage device 106. May be good. The operation history is an example of information on the communication status and disconnection availability status. In this case, each of the recognition SWs of the terminals 104 and 105 determines the operation history from one hour before the current user A to the present. Each of the recognition SWs of the terminals 104 and 105 determines whether or not the own device stores the history of the user A performing the operation of generating communication in a predetermined period from one hour ago to the present. In this determination, each of the recognition SWs of the terminals 104 and 105 performs communication when the own device stores the history of the user A performing the operation of generating the communication in the predetermined period from one hour ago to the present. It is determined that the communication cannot be disconnected, and if the own device does not store the history of performing the operation of generating the communication in the predetermined period from one hour ago to the present, it is determined that the communication can be disconnected. The history of operations that generate communication may be, for example, information that a web browser has been started or information that another application program that generates communication has been started.

Each of the recognition SWs of the terminals 104 and 105 determines whether or not the communication line being used by the user A can be disconnected based only on the current operation of the user A stored in the data storage device 106. You may. The current operation is an example of information on the communication status and disconnection availability status. In this case, each of the recognition SWs of the terminals 104 and 105 is a camera attached to the own device, and acquires an image from a camera attached to the front surface of the monitor and taking a picture of a person located in the front surface of the monitor. Each of the recognition SWs of the terminals 104 and 105 uses face determination processing to determine whether or not a person's face is reflected in the image. When each of the recognition SWs of the terminals 104 and 105 determines that the face of a person is reflected in the face determination process of the image, it is determined that the communication cannot be disconnected because communication may occur, and the face of the image is determined. If it is determined in the determination process that the face of the person is not reflected, it is determined that the communication can be disconnected.

The connection and disconnection of the communication line can be switched in about 1 to 2 seconds. Therefore, even after the user A returns to the seat in front of the own terminal and performs the process of identifying the user in the camera, the user A can communicate with the communication line assigned to another user. The process to do is in time.
Each of the recognition SWs of the terminals 104 and 105 transmits a determination result indicating communication disconnection or communication resumption based on the communication status / disconnectability status to the line control device 103. The determination result indicating the communication disconnection or communication resumption based on the communication status / disconnectability status is transmitted from the line control device 103 to the third communication device 30. In the above-mentioned process of determining whether or not communication can be disconnected in each of the recognition SWs of terminals 104 and 105, the line control device 103 uses the information of the communication status and disconnection availability status for each determination in the terminal 104 and It may be obtained from 105 and performed in the same manner.

The second communication device 20 is a communication device used by the second user. The second communication device 20 communicates with the third communication device 30 via the communication satellite 50.
As shown in FIG. 3, the second communication device 20 includes a wireless device 201, a GW device 202, a line control device 203, a terminal 204 (an example of a determination unit), a terminal 205 (an example of a determination unit), and a data storage device 206 (an example of a determination unit). It is a computer system equipped with an example of a storage unit). The second communication device 20 may be a computer device having the functions of the wireless device 201, the GW device 202, and the line control device 203.
The broken line in FIG. 3 indicates a network line. The solid line in FIG. 3 indicates a communication line.

The wireless device 201 is a wireless device that communicates with the third communication device 30 via the communication satellite 50.
For example, the wireless device 201 includes a modem, a frequency converter, an amplifier, an antenna, and the like. The wireless device 201 transmits / receives communication data between the second communication device 20 and the third communication device 30.

The GW device 202 is a device that controls a path for communication.
Specifically, the GW device 202 controls (that is, determines) a route for transmitting communication data to the wireless device 201. Further, the GW device 202 controls a route for transmitting the communication data received by the wireless device 201 to the terminal 204, the terminal 205, and the line control device 203. Further, the GW device 202 controls the wireless device 201 in response to the instruction signal of the line control device 203, and controls the communication line used for communication by changing the frequency band used for communication.

The line control device 203 is a device that manages the line of the second communication device 20. The line control device 203 obtains a determination result indicating communication disconnection or communication resumption based on the communication status / disconnectability status of the terminals 204 and 205 from the recognition SW. The line control device 203 transmits to the third communication device 30 a determination result indicating communication disconnection or communication resumption based on the obtained communication status / disconnectability status. Further, the line control device 203 is a control device that connects the communication line and disconnects the communication line in the second communication device 20 by controlling the GW device 202 according to the control signal received from the third communication device 30. ..

Each of the terminals 204 and 205 is a terminal that can be used by a user in a place where the second communication device 20 is installed (hereinafter, referred to as "user B", user B is an example of the second user). A recognition SW for determining whether or not communication is being performed is installed in each of the terminals 204 and 205.
For example, the recognition SW is packet capture software, and each of the recognition SWs of terminals 204 and 205 flows through the network by capturing packets flowing through the communication line, displaying the contents, analyzing, and totaling. Identify data traffic (traffic) and its changes. Then, it is determined that each of the recognition SWs of the terminals 204 and 205 is in a state of not communicating when the communication amount is zero, and is in a state of communicating when the communication amount is not zero. It should be noted that determining that the recognition SWs of the terminals 204 and 205 are communicating with each other is equivalent to determining that the communication line cannot be disconnected. Further, determining that the recognition SWs of the terminals 204 and 205 are not communicating is equivalent to determining that the communication line can be disconnected.
Further, the recognition SW is software for each of the terminals 204 and 205 to specify the operating status of the user B. For example, by the recognition SW, each of the terminals 204 and 205 has the mouse cursor moving (that is, the user B is moving the mouse) or the character is input (that is, the user B is inputting the character). What is the displayed WEB site (that is, what WEB site is the user B looking at), and whether the camera of the terminals 204 and 205 shows the user B (that is, the user B is the terminal 104). , Are you sitting in the seat in front of 105) and so on. A technique such as face recognition may be used to identify the user in the camera.

The data storage device 206 is a device that stores data indicating a criterion for determination performed by each of the terminals 204 and 205 using the recognition SW.
For example, the data storage device 206 stores information indicating the communication tendency of the user B as data indicating a determination criterion. Examples of the information indicating the communication tendency of the user B include an operation history indicating the past operation of the user B, environment information indicating the usage environment of the terminals 204 and 205 of the user B, and the like.
Specific examples of the operation history of the user B include the time when the user B sits in front of the terminals 204 and 205, the time when the user B sits in front of the terminals 204 and 205, and the like.
Specific examples of the environment information of the user B are the time when the user B actually starts the data communication in each time zone, the time when the data communication ends, the amount of communication in the data communication, the opportunity to perform the data communication, and the like. .. The opportunity for data communication is information indicating when the user B starts data communication. For example, when user B sits in the seat in front of terminals 204 and 205 and user B always starts data communication, "user B sits in the seat in front of terminals 204 and 205" is an opportunity. Further, for example, when the user B sits in the seat in front of the terminals 204 and 205 at a specific time zone and the user B always starts the data communication, the "user B is the terminal 204 and 205 at the specific time zone". "Sit in the seat in front of you" is an opportunity.

Each of the recognition SWs of the terminals 204 and 205 communicates in use by the user B based on the operation history of the user B and the environmental information of the user A stored in the data storage device 206 and the current operation of the user A. It is possible to determine whether or not the line can be disconnected. Alternatively, each of the recognition SWs of the terminals 204 and 205 is used by the user B based on at least one of the operation history of the user B stored in the data storage device 206, the environmental information of the user A, and the current operation of the user A. It is possible to determine whether or not the communication line inside can be disconnected.
For example, each of the recognition SWs of the terminals 204 and 205 determines whether or not the user B is sitting in the seat in front of the own terminal based on the operation history of the user B accumulated in the data storage device 206 and the environment information of the user B. Regardless, if it is analyzed that communication is automatically performed at a specific time on a specific day of the week (that is, without user B operating), user B is in use at a specific time on that specific day of the week. It is determined that the communication line cannot be disconnected (that is, the communication line being used by user B cannot be temporarily assigned to another user).

Further, for example, when the user B is sitting in the seat in front of the own terminal at a time other than the specific time on the above-mentioned specific day of the week, the user B communicates with each of the recognition SWs of the terminals 204 and 205. It is determined that the user B cannot disconnect the communication line in use (that is, the communication line in use by the user B cannot be temporarily assigned to another user). Further, when the user B is not sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the user B is not communicating with the recognition SWs of the terminals 204 and 205, respectively. It is determined that the user B can disconnect the communication line in use (that is, the communication line in use by the user B can be temporarily assigned to another user). Also, when user B is not sitting in front of his / her terminal at a time other than a specific time on a specific day of the week and user B temporarily assigns the communication line in use to another user. When the user B returns (sits) to the seat in front of the own terminal, the recognition SWs of the terminals 204 and 205 each resume the communication (that is, the communication that the user B has disconnected to allocate to another user). The line needs to be in a state where user B can communicate).

Each of the recognition SWs of the terminals 204 and 205 determines whether or not the communication line being used by the user B can be disconnected by using only the environment information of the user B stored in the data storage device 206. May be good. In this case, the data storage device 206 stores information indicating the past communication history of the user B (data communication start time, data communication end time, etc.) and the amount of communication at each time as environmental information data. .. Then, each of the recognition SWs of the terminals 204 and 205 has the same time range of the past day of the week corresponding to today's day of the week (for example, a range from 1 hour before to 1 hour after the current time) in a predetermined time range including the current time. Etc.) to determine if there is a communication history. In this determination, each of the recognition SWs of the terminals 204 and 205 determines that the connection cannot be made if there is a communication history in the same time range of the past day of the week corresponding to today's day of the week, and the past day of the week corresponding to today's day of the week. If there is no communication history in the same time range, it may be determined that the disconnection is possible.

Each of the recognition SWs of the terminals 204 and 205 determines whether or not the communication line being used by the user B can be disconnected based only on the operation history of the user B stored in the data storage device 206. May be good. In this case, each of the recognition SWs of the terminals 204 and 205 determines the operation history from one hour before the current user B to the present. Each of the recognition SWs of the terminals 204 and 205 determines whether or not the own device stores the history of the user B performing the operation of generating communication in a predetermined period from one hour ago to the present. In this determination, each of the recognition SWs of the terminals 204 and 205 performs communication when the own device stores the history of the user B performing the operation of generating the communication in the predetermined period from one hour ago to the present. It is determined that the communication cannot be disconnected, and if the own device does not store the history of performing the operation of generating the communication in the predetermined period from one hour ago to the present, it is determined that the communication can be disconnected. The history of operations that generate communication may be, for example, information that a web browser has been started or information that another application program that generates communication has been started.

Each of the recognition SWs of the terminals 204 and 205 determines whether or not the communication line being used by the user B can be disconnected based only on the current operation of the user B stored in the data storage device 206. You may. In this case, each of the recognition SWs of the terminals 204 and 205 is a camera attached to the own device, and acquires an image from a camera attached to the front surface of the monitor and taking a picture of a person located in the front surface of the monitor. Each of the recognition SWs of the terminals 204 and 205 uses face determination processing to determine whether or not a person's face is reflected in the image. When each of the recognition SWs of the terminals 204 and 205 determines that the face of a person is reflected in the face determination process of the image, it is determined that the communication cannot be disconnected because communication may occur, and the face of the image is determined. If it is determined in the determination process that the face of the person is not reflected, it is determined that the communication can be disconnected.

The connection and disconnection of the communication line can be switched in about 1 to 2 seconds. Therefore, even after the user B returns to the seat in front of the own terminal and performs the process of identifying the user in the camera, the user B can communicate with the communication line assigned to another user. The process to do is in time.
Each of the recognition SWs of the terminals 204 and 205 transmits a determination result indicating communication disconnection or communication resumption based on the communication status / disconnectability status to the line control device 203. The determination result indicating the communication disconnection or communication resumption based on the communication status / disconnectability status is transmitted from the line control device 203 to the third communication device 30. In the above-mentioned process of determining whether or not communication can be disconnected in each of the recognition SWs of terminals 204 and 205, the line control device 203 uses the information of the communication status and disconnectability status to be used for each determination in the terminals 204 and 205. It may be obtained from 205 and performed in the same manner.

The third communication device 30 is a communication device that manages a communication line in the communication system 1. The third communication device 30 determines a frequency band used for communication in the communication satellites 40 and 50, and the first communication device 10 and the second communication device via the communication satellites 40 and 50 are used so as to use the determined frequency band. Notify 20. Then, the third communication device 30 communicates with the first communication device 10 via the communication satellite 40. Further, the third communication device 30 communicates with the second communication device 20 via the communication satellite 50.
As shown in FIG. 4, the third communication device 30 includes a wireless device 301, a GW device 302, a line control device 303a, a line control device 303b (an example of a first control unit, an example of a second control unit), and a terminal 304 (an example of a first control unit and a second control unit). A determination unit), a terminal 305 (an example of a determination unit), and a data storage device 306 (an example of a storage unit) are provided.
The broken line in FIG. 4 indicates a network line. The solid line in FIG. 4 indicates a communication line.

The wireless device 301 is a wireless device that communicates with the first communication device 10 via the communication satellite 40. Further, the wireless device 301 is a wireless device that communicates with the second communication device 20 via the communication satellite 50.
For example, the wireless device 301 includes a modem, a frequency converter, an amplifier, an antenna, and the like. The wireless device 301 transmits / receives communication data between the first communication device 10 and the third communication device 30, and transmits / receives communication data between the second communication device 20 and the third communication device 30.

The GW device 302 is a device that controls a path for communication.
Specifically, the GW device 302 controls (that is, determines) a route for transmitting communication data to the wireless device 301. Further, the GW device 302 controls a route for transmitting the communication data received by the wireless device 301 to the terminals 304, the terminal 305, and the line control devices 303a and 303b. Further, the GW device 302 controls the wireless device 301 in response to the instruction signal of the line control device 303a, and controls the communication line used for communication by changing the frequency band used for communication.

The line control device 303a is a device that manages the line of the third communication device 30. The line control device 303a obtains a determination result indicating communication disconnection or communication resumption based on the communication status / disconnectability status of the terminals 304 and 305 from the recognition SW. The line control device 303a transmits to the line control device 303b a determination result indicating communication disconnection or communication resumption based on the obtained communication status / disconnectability status. Further, the line control device 303a is a control device that connects the communication line and disconnects the communication line in the third communication device 30 by controlling the GW device 302 according to the control signal received from the line control device 303b.
The line control device 303b is a control device that connects the communication line, disconnects the communication line, and preferentially manages the communication line in the communication system 1. For example, the line control device 303b transmits a control signal for managing the priority of the user's communication line to the first communication device 10. Further, the line control device 303b transmits a control signal for managing the priority of the user's communication line to the second communication device 20. Further, the line control device 303b receives a notification of the status of the first communication device 10 from the first communication device 10. Further, the line control device 303b receives a notification of the status of the second communication device 20 from the second communication device 20.

Each of the terminals 304 and 305 is a terminal that can be used by a user (hereinafter, referred to as "user C") in a place where the third communication device 30 is installed. A recognition SW for determining whether or not communication is being performed is installed in each of the terminals 304 and 305.
For example, the recognition SW is packet capture software, and each of the recognition SWs of terminals 304 and 305 flows through the network by capturing packets flowing through the communication line, displaying the contents, and performing analysis / aggregation. Identify data traffic (traffic) and its changes. Then, it is determined that each of the recognition SWs of the terminals 304 and 305 is in a state of not communicating when the communication amount is zero, and is in a state of communicating when the communication amount is not zero. It should be noted that determining that the recognition SWs of the terminals 304 and 305 are communicating with each other is equivalent to determining that the communication line cannot be disconnected. Further, determining that the recognition SWs of the terminals 304 and 305 are not communicating is equivalent to determining that the communication line can be disconnected.
Further, the recognition SW is software for each of the terminals 304 and 305 to specify the operating status of the user C. For example, by the recognition SW, each of the terminals 304 and 305 has the mouse cursor moving (that is, the user C is moving the mouse) or the character is input (that is, the user C is inputting the character). What is the displayed WEB site (that is, what WEB site is the user C looking at), and whether the user in the cameras of terminals 304 and 305 is the user C (that is, the user). Whether C is sitting in the seat in front of terminals 304 and 305) and the like are specified. A technique such as face recognition may be used to identify the user in the camera.

The data storage device 306 is a device that stores data indicating a criterion for determination performed by each of the terminals 304 and 305 using the recognition SW.
For example, the data storage device 306 stores information indicating the communication tendency of the user C as data indicating a determination criterion. Examples of the information indicating the communication tendency of the user C include an operation history indicating the past operation of the user C, environment information indicating the usage environment of the terminals 304 and 305 of the user C, and the like.
Specific examples of the operation history of the user C include the time when the user C sits in front of the terminals 304 and 305, the time when the user C sits in front of the terminals 304 and 305, and the like.
Specific examples of the environment information of the user C are the time when the user C actually starts the data communication in each time zone, the time when the data communication ends, the amount of communication in the data communication, the opportunity to perform the data communication, and the like. .. The opportunity for data communication is information indicating when the user C starts data communication. For example, when the user C sits in the seat in front of the terminals 304 and 305 and the user C always starts data communication, "the user C sits in the seat in front of the terminals 304 and 305" is an opportunity. Further, for example, when the user C sits in the seat in front of the terminals 304 and 305 at a specific time zone and the user C always starts data communication, the "user C is the terminal 304 and 305 at a specific time zone". "Sit in the seat in front of you" is an opportunity.

Each of the recognition SWs of the terminals 304 and 305 communicates in use by the user C based on the operation history of the user C and the environmental information of the user C accumulated in the data storage device 306 and the current operation of the user C. It is possible to determine whether or not the line can be disconnected. Alternatively, each of the recognition SWs of the terminals 304 and 305 is used by the user C based on at least one of the operation history of the user C stored in the data storage device 306, the environmental information of the user C, and the current operation of the user C. It is possible to determine whether or not the communication line inside can be disconnected.
For example, each of the recognition SWs of the terminals 304 and 305 determines whether or not the user C is sitting in the seat in front of the own terminal from the operation history of the user C accumulated in the data storage device 306 and the environment information of the user C. Regardless, if it is analyzed that communication is being performed automatically (that is, without user C's operation) at a specific time on a specific day of the week, user C is in use at a specific time on that specific day of the week. It is determined that the communication line cannot be disconnected (that is, the communication line being used by user C cannot be temporarily assigned to another user).

Further, for example, when the user C is sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the user C communicates with each of the recognition SWs of the terminals 304 and 305. It is determined that the user C cannot disconnect the communication line in use (that is, the communication line in use by the user C cannot be temporarily assigned to another user). Further, when the user C is not sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the user C is not communicating with the recognition SWs of the terminals 304 and 305, respectively. It is determined that the user C can disconnect the communication line in use (that is, the communication line in use by the user C can be temporarily assigned to another user). Also, when user C is not sitting in front of the terminal at a time other than a specific time on a specific day of the week and user C temporarily assigns the communication line in use to another user. When the user C returns (sits) to the seat in front of the own terminal, the recognition SWs of the terminals 304 and 305 each resume the communication (that is, the communication that the user C has disconnected to allocate to another user). The line needs to be in a state where user C can communicate).

Each of the recognition SWs of the terminals 304 and 305 determines whether or not the communication line being used by the user C can be disconnected by using only the environment information of the user C stored in the data storage device 306. May be good. In this case, the data storage device 306 stores information indicating the past communication history of the user C (data communication start time, data communication end time, etc.) and the amount of communication at each time as environmental information data. .. Then, each of the recognition SWs of the terminals 304 and 305 has the same time range of the past day of the week corresponding to today's day of the week (for example, a range from 1 hour before to 1 hour after the current time) in a predetermined time range including the current time. Etc.) to determine if there is a communication history. In this determination, the recognition SWs of the terminals 304 and 305 determine that they cannot be disconnected if there is a communication history in the same time range of the past day of the week corresponding to today's day of the week, and each of the past days of the week corresponding to today's day of the week. If there is no communication history in the same time range, it may be determined that the disconnection is possible.

Each of the recognition SWs of the terminals 304 and 305 determines whether or not the communication line being used by the user C can be disconnected based only on the operation history of the user C accumulated in the data storage device 306. May be good. In this case, each of the recognition SWs of the terminals 304 and 305 determines the operation history from one hour before the current user C to the present. Each of the recognition SWs of the terminals 304 and 305 determines whether or not the own device stores the history of the user C performing the operation of generating communication in a predetermined period from one hour ago to the present. In this determination, each of the recognition SWs of the terminals 304 and 305 performs communication when the own device stores the history of the user C performing the operation of generating the communication in the predetermined period from one hour ago to the present. It is determined that the communication cannot be disconnected, and if the own device does not store the history of performing the operation of generating the communication in the predetermined period from one hour ago to the present, it is determined that the communication can be disconnected. The history of operations that generate communication may be, for example, information that a web browser has been started or information that another application program that generates communication has been started.

Each of the recognition SWs of the terminals 304 and 305 determines whether or not the communication line being used by the user C can be disconnected based only on the current operation of the user C stored in the data storage device 306. You may. In this case, each of the recognition SWs of the terminals 304 and 305 is a camera attached to the own device, and acquires an image from a camera attached to the front surface of the monitor and taking a picture of a person located in the front surface of the monitor. Each of the recognition SWs of the terminals 304 and 305 uses face determination processing to determine whether or not a person's face is reflected in the image. When each of the recognition SWs of the terminals 304 and 305 determines that the face of a person is reflected in the face determination process of the image, it is determined that the communication cannot be disconnected because communication may occur, and the face of the image is determined. If it is determined in the determination process that the face of the person is not reflected, it is determined that the communication can be disconnected.

The connection and disconnection of the communication line can be switched in about 1 to 2 seconds. Therefore, even after the user C returns to the seat in front of the own terminal and performs the process of identifying the user in the camera, the user C can communicate with the communication line assigned to another user. The process to do is in time.
Each of the recognition SWs of the terminals 304 and 305 transmits a determination result indicating communication disconnection or communication resumption based on the communication status / disconnectability status to the line control device 303a. The determination result indicating the communication disconnection or communication resumption based on the communication status / disconnectability status is transmitted from the line control device 303a to the line control device 303b. In the above-mentioned process of determining whether or not communication can be disconnected in each of the recognition SWs of terminals 304 and 305, the line control device 303a uses the information of the communication status and disconnectability status to be used for each determination in the terminals 304 and 305. It may be obtained from 305 and performed in the same manner.

The communication satellite 40 amplifies the communication signal between the first communication device 10 and the third communication device 30 that is transmitted and received using the communication line of the frequency band determined by the third communication device 30.

The communication satellite 50 amplifies the communication signal between the second communication device 20 and the third communication device 30 that is transmitted and received using the communication line of the frequency band determined by the third communication device 30.

Next, the process of switching the line performed by the communication system 1 will be described.
Here, the processing flow of the communication system 1 shown in FIG. 5 will be described.
It is assumed that the user A uses the terminal 104 to communicate with the terminal 304. Further, it is assumed that the user B tries to communicate with the terminal 305 by using the terminal 205 which has a low priority and cannot communicate with the terminal 305 at the present time while the user A is communicating.

When the terminal 104 starts communication with the third communication device 30, the terminal 104 reads data indicating a criterion for determination to be performed using the recognition SW from the data storage device 106.
The recognition SW of the terminal 104 determines whether or not the first communication line in use by the first communication device 10 can be disconnected by using the information of the communication status and the disconnectability status (step S1).
When it is determined that the first communication line cannot be disconnected (NO in step S1), the recognition SW of the terminal 104 returns to the process of step S1.
Further, when the recognition SW of the terminal 104 determines that the first communication line can be disconnected (YES in step S1), the line control device 103 and the communication satellite 40 determine the first determination result indicating that the first communication line can be disconnected. Is transmitted to the third communication device 30 via.

The line control device 303a receives the first determination result from the first communication device 10. The line control device 303a transmits the first determination result to the line control device 303b. The line control device 303b receives the first determination result from the line control device 303a. The line control device 303b determines that the frequency band assigned to the first communication line is an empty frequency band based on the received first determination result.

When the line control device 303b receives the first determination result, the line control device 303b disconnects the first communication line that is not performing data communication between the terminal 104 and the terminal 304 (step S2).
For example, the line control device 303b transmits a control signal for disconnecting the first communication line used for communication between the terminal 104 and the terminal 304 to the line control device 303a and the line control device 103. The line control device 303a receives the control signal, and outputs an instruction signal instructing the wireless device 301 to disconnect the first communication line via the GW device 302 in response to the received control signal. The line control device 103 receives the control signal, and outputs an instruction signal instructing the wireless device 101 to disconnect the first communication line via the GW device 102 in response to the received control signal. The wireless device 301 and the wireless device 101 disconnect the first communication line used for communication between the terminal 104 and the terminal 304 in response to the instruction signal. That is, the wireless device 301 and the wireless device 101 stop communication using the frequency band previously assigned to the first communication line.

Here, it is assumed that the user B performs an operation on the terminal 205 to start communication with the terminal 305. The terminal 205 requests the third communication device 30 to perform data communication with the terminal 305 via the communication satellite 50 using the control dedicated line in response to the operation by the user B.
In response to the request, the line control device 303b disconnects the first communication line between the terminal 104 and the terminal 304 to the second communication line between the terminal 205 and the terminal 305 via the line control device 303a. The frequency band allocated to the first communication line is allocated before the first communication line (step S3).
For example, the line control device 303b assigns a control signal that allocates the frequency band of the first communication line used for communication between the terminal 104 and the terminal 304 to the second communication line between the terminal 205 and the terminal 305. Transmission is performed to the line control device 303a, the line control device 103, and the line control device 203.
The line control device 303a outputs an instruction signal to the wireless device 301 via the GW device 302 in response to the control signal. In response to the instruction signal, the wireless device 301 uses the frequency band of the second communication line between the terminal 205 and the terminal 305 as the frequency of the first communication line used for communication between the terminal 104 and the terminal 304. Switch to the band.
Further, the line control device 203 outputs an instruction signal to the wireless device 201 via the GW device 202 in response to the control signal. In response to the instruction signal, the wireless device 201 uses the frequency band of the second communication line between the terminal 205 and the terminal 305 as the frequency of the first communication line used for communication between the terminal 104 and the terminal 304. Switch to the band.
Further, in the line control device 103, the frequency band of the first communication line used for the communication between the terminal 104 and the terminal 304 is assigned to the communication between the terminal 205 and the terminal 305 by the control signal. Is recognized, and it is determined that the frequency band cannot be used until the line control device 303b gives permission to use the line again.

The line control device 303b determines whether or not communication between the terminal 104 and the terminal 304 is resumed (step S4).

For example, the recognition SW of the terminal 104 determines whether or not the first communication line in use by the first communication device 10 can be restarted by using the information of the communication status and the disconnectability status. Specifically, the recognition SW of the terminal 104 determines whether or not the user A is sitting in the seat in front of the own terminal based on the operation history of the user A accumulated in the data storage device 106 and the environment information of the user A. Regardless, if it is analyzed that communication is automatically performed at a specific time on a specific day of the week, it is notified that communication between the terminal 104 and the terminal 304 will resume at a specific time on that specific day of the week. The notification signal to be sent is transmitted to the third communication device 30 via the line control device 103. The line control device 303b determines whether or not a notification signal is received from the first communication device 10 via the line control device 303a. Then, the line control device 303b determines that the communication between the terminal 104 and the terminal 304 has not yet resumed when the notification signal has not been received. Further, when the line control device 303b receives the notification signal, it determines that the communication between the terminal 104 and the terminal 304 is resumed.

Further, for example, when the recognition SW of the terminal 104 determines from the image taken by the camera that the user A has returned to the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the recognition SW of the terminal 104 is referred to as the terminal 104. A notification signal notifying that communication with the terminal 304 is resumed is transmitted to the third communication device 30 via the line control device 103. The line control device 103 transmits the notification signal to the third communication device 30 using a control dedicated line. The line control device 303b determines whether or not a notification signal is received from the first communication device 10 via the line control device 303a. Then, the line control device 303b determines that the communication between the terminal 104 and the terminal 304 has not yet resumed when the notification signal has not been received. Further, when the line control device 303b receives the notification signal, it determines that the communication between the terminal 104 and the terminal 304 is resumed.

It should be noted that the recognition SW of the terminal 104 is described above as to whether or not to disconnect based on at least one of the user's operation history stored in the data storage device 106, the user A's environmental information, and the user A's current operation. It may be determined whether or not the communication is restarted in the same manner as the process of determining the above.

That is, the recognition SW of the terminal 104 may determine whether or not to restart the communication by the disconnected communication line by using only the environment information of the user A stored in the data storage device 106. In this case, the data storage device 106 stores information indicating the past communication history of the user A (data communication start time, data communication end time, etc.) and the amount of communication at each time as environmental information data. .. Then, the recognition SW of the terminal 104 has the same time range of the past day of the week corresponding to today's day of the week (for example, a range from 1 hour before to 1 hour after the current time) in a predetermined time range including the current time. Determine if there is a communication history. In this determination, the recognition SW of the terminal 104 determines that if there is a communication history in the same time range of the past day of the week corresponding to today's day of the week, the communication by the disconnected communication line is restarted, and today's day of the week. If there is no communication history in the same time range of the past day of the week corresponding to, it may be determined that the communication by the disconnected communication line is not restarted.

Further, the recognition SW of the terminal 104 may determine whether or not to restart the communication by the disconnected communication line based only on the operation history of the user A accumulated in the data storage device 106. In this case, the recognition SW of the terminal 104 determines the operation history from one hour before the current user A to the present. The recognition SW of the terminal 104 determines whether or not the own device stores the history of the user A performing the operation of generating communication in a predetermined period from one hour ago to the present. In this determination, the recognition SW of the terminal 104 is disconnected when the own device stores the history of the user A performing the operation of generating communication in a predetermined period from one hour ago to the present. If the own device does not store the history of performing the operation to generate communication in the predetermined period from 1 hour ago to the present, it is determined that the communication is restarted by the disconnected communication line. May be determined not to be performed. The history of operations that generate communication may be, for example, information that a web browser has been started or information that another application program that generates communication has been started.

Further, the recognition SW of the terminal 104 may determine whether or not to restart the communication by the disconnected communication line based only on the current operation of the user A in which the data storage device 106 is stored. In this case, the recognition SW of the terminal 104 is a camera attached to its own device, and acquires an image from a camera attached to the front surface of the monitor and taking a picture of a person located in the front surface of the monitor. The recognition SW of the terminal 104 uses face determination processing to determine whether or not a person's face is reflected in the image. When the recognition SW of the terminal 104 determines that the face of a person is reflected in the face determination process of the image, it determines that the communication may be restarted by the disconnected communication line because the communication may occur. If it is determined that the face of a person is not reflected in the face determination process of the image, it may be determined that the communication by the disconnected communication line is not restarted. In the above-mentioned process of determining whether or not to restart communication in the recognition SW of the terminal 104, the line control device 103 acquires information on the communication status and disconnection availability status to be used for each determination from the terminal 104. And may be done in the same way.

When the line control device 303b determines that the communication between the terminal 104 and the terminal 304 is not resumed (NO in step S4), the line control device 303b returns to the process of step S4.

Further, when the line control device 303b determines that the communication between the terminal 104 and the terminal 304 is resumed (YES in step S4), the line control device 303b disconnects the second communication line between the terminal 205 and the terminal 305 (step S5). ).
For example, the line control device 303b sends a control signal for disconnecting the second communication line used for communication between the terminal 205 and the terminal 305 via the line control device 303a to the line control device 303a and the line control device 303a. It is transmitted to 203. The line control device 303a and the line control device 203 disconnect the second communication line used for communication between the terminal 205 and the terminal 305 in response to the control signal.

The line control device 303b assigns the frequency assigned to the first communication line between the terminal 104 and the terminal 304 to the second communication line before disconnecting the second communication line between the terminal 205 and the terminal 305. A band (that is, a frequency band assigned to the first communication line between the terminal 104 and the terminal 304) is assigned (step S6).
For example, the line control device 303b assigns a control signal that allocates the frequency band of the second communication line used for communication between the terminal 205 and the terminal 305 to the first communication line between the terminal 104 and the terminal 304. Transmission is performed to the line control device 303a, the line control device 103, and the line control device 203.
The line control device 303a outputs an instruction signal to the wireless device 301 via the GW device 302 in response to the control signal. In response to the instruction signal, the wireless device 301 uses the frequency band of the first communication line between the terminal 104 and the terminal 304 as the frequency of the second communication line used for communication between the terminal 205 and the terminal 305. Switch to the band.
Further, the line control device 103 outputs an instruction signal to the wireless device 101 via the GW device 102 in response to the control signal. In response to the instruction signal, the wireless device 101 uses the frequency band of the first communication line between the terminal 104 and the terminal 304 as the frequency of the second communication line used for communication between the terminal 205 and the terminal 305. Switch to the band.
Further, in the line control device 203, the frequency band of the second communication line used for the communication between the terminal 205 and the terminal 305 is assigned to the communication between the terminal 104 and the terminal 304 by the control signal. Is recognized, and it is determined that the frequency band cannot be used until the line control device 303b gives permission to use it again.

At this time, if there is another free communication line (that is, a dedicated control line for an unused frequency band), the line control device 303b is used for communication between the disconnected terminal 205 and the terminal 305. The frequency band assigned to the vacant communication line may be assigned to the second communication line that has been used.

The communication system 1 according to the embodiment of the present invention has been described above.
Each of the wireless devices 101, 202, and 302 includes a modem, a frequency converter, a power amplifier, an antenna, and the like, and is a device that transmits and receives data. Each of the wireless devices 101, 202, and 302 changes the setting of the component such as changing the frequency based on the instruction of the line control device which is a higher-level device. The instruction of the line control device is given in the flow of the line control device-GW device-wireless device.
Each of the GW devices 102, 202, and 302 is a device that controls a route in a communication device (performs routing in a network). Each of the GW devices 102, 202, and 302 sees the destination of the communication data received via the wireless device and transmits the data to an appropriate terminal. Further, each of the GW devices 102, 202, and 302 looks at the destination of the data received from the terminal at the time of transmission and goes to an appropriate route of the wireless device (which antenna if the wireless device has a plurality of antennas). (Determine whether to use the route of) and send the data.
Each of the line control devices 103, 203, and 303a is a device that manages the line in the communication device, and notifies the host device (line control device 303b) of information on the line usage status of the terminal and whether or not the line can be disconnected. When connecting / disconnecting a line, each of the line control devices 103, 203, and 303a receives an instruction from the line control device 303b, and the line control device that manages the target communication device instructs the subordinate equipment.
The instruction and response for connecting / disconnecting the line is performed only between the "line control device 103, 203, 303a" and the "line control device 303b", and the line control device 303b directly changes the settings of the GW device and the wireless device. There is no such thing.
The line control device 303b is a device that manages the line of the entire communication system, and is a device that makes a final determination and instruction of line connection / disconnection between communication devices. Since the line control device 303b is a device that performs determination / instruction, it is necessary to obtain the status of each communication device from the line control devices 103, 203, and 303a.
Then, the line is disconnected as follows.
For example, when disconnecting the line of the first communication device 10, the line control device 103 determines that the disconnection is possible by looking at the status of the terminals 104 and 105, and notifies the line control device 303b of the information. The line control device 303b determines the disconnection and issues a disconnection instruction to the line control device 103. The line control device 103 receives the disconnection instruction and issues a disconnection instruction to the wireless device 101 via the GW device 102 in order to disconnect the line of the first communication device 10.

The communication system 1 includes a data storage device 106 (an example of a storage unit), a terminal 104 (an example of a determination unit), and a line control device 303b (an example of a first control unit and an example of a second control unit).
The data storage device 106 is information including an operation history indicating the past operation of the user A (an example of the first user) and environment information indicating the usage environment of the terminal 104 (an example of the determination unit) used by the user A. Therefore, the information used for determining whether or not the user A can disconnect the first communication line in use and whether or not to connect the disconnected first communication line is stored.
The terminal 104 determines whether or not to disconnect the first communication line based on the information stored in the data storage device 106.
The line control device 303b (an example of the first control unit) uses the frequency band assigned to the disconnected first communication line by the user B (an example of the second user) based on the determination result by the terminal 104. 2 The frequency band is assigned to the communication line and the second communication line is connected. Further, when the line control device 303b (an example of the second control unit) determines to connect the first communication line based on the information stored in the data storage device 106, the line control device 303b disconnects the second communication line and first The frequency band is assigned to the communication line and the first communication line is connected.
By doing so, the communication system 1 can increase the number of users who can communicate as a whole.

In one embodiment of the present invention, the frequency band used in the first communication line used by the user A is assigned to the second communication line used by the user B, and then the first communication line used by the user A. A specific example has been described by taking the case of reallocating the frequency band to. However, in another embodiment of the present invention, the frequency band used in the second communication line used by the user B is assigned to the first communication line used by the user A, and then the second communication used by the user B is used. The frequency band may be assigned to the line again. Further, in another embodiment of the present invention, another user is adopted instead of the user A and the user B, and the connection of the communication line is controlled by the same processing as the processing described in one embodiment of the present invention. It may be.

In one embodiment of the present invention, for example, when the user A is sitting in a seat in front of the terminal 104 or the terminal 105 at a time other than the specific time on the above-mentioned specific day of the week, the terminal is the user. A determines that communication is being performed, and the communication line used by user A cannot be disconnected (that is, the communication line used by user A cannot be temporarily assigned to another user). It was explained as a judgment. However, in another embodiment of the present invention, the terminal is at a time other than the specific time on the specific day of the week described above, and even when the user A is sitting in the seat in front of the terminal 104 or the terminal 105. Is only viewing downloaded videos and documents, and if it is determined that data is not being sent or received via the communication line, user A temporarily transfers the communication line in use to another user. It may be determined that it can be assigned. Switching between connection and disconnection of the communication line can be performed in about 1 to 2 seconds. In this case, for example, each of the terminals 104 and 105 is an operation in which the user A moves the mouse cursor to the terminal in use. Is detected, a process of making the communication line assigned to another user available to the user A (that is, transmitting an instruction to the third communication device 30 to allocate the communication line to the terminal in use). That) should be done.

In one embodiment of the present invention, for example, when the user B is sitting in a seat in front of the terminal 204 or the terminal 205 at a time other than the specific time on the above-mentioned specific day of the week, the terminal is the user. B determines that communication is being performed, and the communication line used by user B cannot be disconnected (that is, the communication line used by user B cannot be temporarily assigned to another user). It was explained as a judgment. However, in another embodiment of the invention, the terminal is at a time other than the specific time on the particular day of the week described above, even if the user B is sitting in front of the terminal 204 or 205. Is only viewing downloaded videos and documents, and if it is determined that data is not being sent or received via the communication line, user B temporarily transfers the communication line in use to another user. It may be determined that it can be assigned. Switching between connection and disconnection of the communication line can be performed in about 1 to 2 seconds. In this case, for example, each of the terminals 204 and 205 is an operation in which the user B moves the mouse cursor to the terminal in use. Is detected, a process of making the communication line assigned to another user available to the user B (that is, transmitting an instruction to the third communication device 30 to allocate the communication line to the terminal in use). That) should be done.

In one embodiment of the present invention, for example, when the user C is sitting in the seat in front of the terminal 304 or the terminal 305 at a time other than the specific time on the above-mentioned specific day of the week, the terminal is the user. C determines that communication is being performed, and the communication line being used by user C cannot be disconnected (that is, the communication line being used by user C cannot be temporarily assigned to another user). It was explained as a judgment. However, in another embodiment of the present invention, the terminal is at a time other than the specific time on the specific day of the week described above, even when the user C is sitting in the seat in front of the terminal 304 or the terminal 305. Is only viewing downloaded videos and documents, and if it is determined that data is not being sent or received via the communication line, user C temporarily transfers the communication line in use to another user. It may be determined that it can be assigned. Switching between connection and disconnection of the communication line can be performed in about 1 to 2 seconds. In this case, for example, each of the terminals 304 and 305 is an operation in which the user C moves the mouse cursor to the terminal in use. When is detected, a process may be performed to enable the user C to communicate with the communication line assigned to the other user.

The minimum configuration communication system 1 according to the embodiment of the present invention will be described.
As shown in FIG. 6, the communication system 1 having the minimum configuration according to the embodiment of the present invention includes a storage unit 401, a determination unit 402, a first control unit 403, and a second control unit 404.
The storage unit 401 is information including an operation history indicating the past operation of the first user and environment information indicating the usage environment of the terminal used by the first user, and is the first information being used by the first user. 1 Stores information used for determining whether or not the communication line can be disconnected and whether or not the disconnected first communication line is connected.
The determination unit 402 determines whether or not to disconnect the first communication line based on the information stored in the storage unit 401.
Based on the determination result by the determination unit 402, the first control unit 403 allocates the frequency band assigned to the disconnected first communication line to the second communication line used by the second user, and the frequency band is assigned to the second communication line. Connect the second communication line.
When the second control unit 404 determines that the first communication line is to be connected based on the information stored in the storage unit 401, the second control unit 404 disconnects the second communication line and connects the frequency band to the first communication line. Allocate and connect the first communication line.
By doing so, the communication system 1 can increase the number of users who can communicate as a whole.

The communication device 70 having the minimum configuration according to the embodiment of the present invention will be described.
The communication device 70 (first communication device 10, second communication device 20, third communication device 30) having the minimum configuration according to the embodiment of the present invention includes the first means 71 and the second means 72 as shown in FIG. You only have to prepare at least.
The first means 71 determines whether or not to disconnect the communication with another device via the communication satellite based on the communication status of the own device, and if it is determined to disconnect the communication, disconnects the communication. The determination result shown is transmitted to the line control device that allocates the communication frequency to the line control device that allocates the communication frequency to the communication of another device based on the reception of the determination result.
The second means 72 determines whether or not to restart the communication connection based on the communication status of the own device, and if it is determined to restart the communication connection, sends a restart notification signal indicating that the communication connection is restarted. , The communication frequency is transmitted to the line control device assigned to the own device based on the reception of the restart notification signal.

In the processing according to the embodiment of the present invention, the order of the processing may be changed as long as the appropriate processing is performed.

Although the embodiment of the present invention has been described, the above-mentioned communication system 1, the first communication device 10, the second communication device 20, the third communication device 30, the wireless devices 101, 201, 301, the GW devices 102, 202, and the line control The devices 103, 203, 303a, 303b, terminals 104, 105, 204, 205, 304, 305, and other control devices may have a computer device inside. The process of the above-mentioned processing is stored in a computer-readable recording medium in the form of a program, and the above-mentioned processing is performed by the computer reading and executing this program. A specific example of a computer is shown below.
FIG. 8 is a schematic block diagram showing a configuration of a computer according to at least one embodiment.
As shown in FIG. 8, the computer 5 includes a CPU 6, a main memory 7, a storage 8, and an interface 9.
For example, the above-mentioned communication system 1, first communication device 10, second communication device 20, third communication device 30, wireless device 101, 201, 301, GW device 102, 202, line control device 103, 203, 303a, 303b. , Terminals 104, 105, 204, 205, 304, 305, and other control devices are each mounted on the computer 5. The operation of each processing unit described above is stored in the storage 8 in the form of a program. The CPU 6 reads a program from the storage 8, expands it into the main memory 7, and executes the above processing according to the program. Further, the CPU 6 secures a storage area corresponding to each of the above-mentioned storage units in the main memory 7 according to the program.

Examples of the storage 8 include HDD (Hard Disk Drive), SSD (Solid State Drive), magnetic disk, optical magnetic disk, CD-ROM (Compact Disk Read Only Memory), DVD-ROM (Digital Versatile Disk Read). , Semiconductor memory and the like. The storage 8 may be internal media directly connected to the bus of computer 5, or external media connected to computer 5 via an interface 9 or a communication line. When this program is distributed to the computer 5 via a communication line, the distributed computer 5 may expand the program in the main memory 7 and execute the above processing. In at least one embodiment, the storage 8 is a non-temporary tangible storage medium.

<Other Embodiments>
In the communication system 1 according to the embodiment of the present invention, a communication line is assigned to the first user, but while data communication is not performed on the communication line, the communication line is assigned to the second user for data. It is a communication system. Further, the communication system 1 is a system in which a second user performs data communication via the communication line and then reassigns the communication line to the first user without the first user connecting to the communication line. is there.
For example, the communication system 1 is a system that communicates via a communication satellite. When the communication system 1 is a system that communicates via a communication satellite, the frequency band that can be used for the communication line when the communication satellite is used is small, so that the communication efficiency due to the allocation of the communication line to the user in the communication system 1 is improved. The effect of improvement is more likely to be obtained than when there are many frequency bands. Therefore, the communication system 1 that communicates via the communication satellite will be described below. However, the communication system 1 is not limited to a system that communicates via a communication satellite.
It should be noted that the transmission and reception of signals for controlling the communication path (that is, controlling the connection of the communication line and the disconnection of the communication line) between the devices has a narrow frequency band different from that of the communication line and can always be communicated. It is done using a line.

As shown in FIG. 1, the communication system 1 includes a first communication device 10, a second communication device 20, a third communication device 30, and communication satellites 40 and 50.

The first communication device 10 is a communication device used by the first user. The first communication device 10 communicates with the third communication device 30 via the communication satellite 40.
As shown in FIG. 2, the first communication device 10 includes a wireless device 101, a GW (Gateway) device 102, a line control device 103, a terminal 104 (an example of a determination unit), a terminal 105 (an example of a determination unit), and data storage. A device 106 (an example of a storage unit) is provided.
The broken line in FIG. 2 indicates a network line. The solid line in FIG. 2 indicates a communication line.

The wireless device 101 is a wireless device that communicates with the third communication device 30 via the communication satellite 40.
For example, the wireless device 101 includes a modem, a frequency converter, an amplifier, an antenna, and the like. The wireless device 101 transmits and receives communication data between the first communication device 10 and the third communication device 30.

The GW device 102 is a device that controls a path for communication.
Specifically, the GW device 102 controls (that is, determines) a route for transmitting communication data to the wireless device 101. Further, the GW device 102 controls a route for transmitting the communication data received by the wireless device 101 to the terminal 104, the terminal 105, and the line control device 103. Further, the GW device 102 controls the wireless device 101 in response to the instruction signal of the line control device 103, and controls the communication line used for communication by changing the frequency band used for communication.

The line control device 103 is a device that manages the line of the first communication device 10. The line control device 103 obtains the communication status and disconnectability status of the terminals 104 and 105 from the recognition SW. The line control device 103 transmits the obtained information on the communication status and disconnectability status to the third communication device 30. Further, the line control device 103 controls the GW device 102 in response to the instruction signal received from the third communication device 30, thereby connecting the communication line in the first communication device 10, disconnecting the communication line, and prioritizing management of the communication line. It is a control device that performs.

Each of the terminals 104 and 105 is a terminal that can be used by a user in a place where the first communication device 10 is installed (hereinafter, referred to as "user A", user A is an example of the first user). Recognition software (described as "recognition SW" in FIGS. 2 to 4) for determining whether or not communication is being performed is installed in each of the terminals 104 and 105.
For example, the recognition software is packet capture software, and each of the terminals 104 and 105 captures packets flowing through a communication line, displays the contents, analyzes, and aggregates the data flowing through the network. Identify traffic and its changes. Then, it is determined that each of the terminals 104 and 105 is in a state of not communicating when the communication amount is zero, and is in a state of communicating when the communication amount is not zero. It should be noted that determining that each of the terminals 104 and 105 is in a state of communication is equivalent to determining that the communication line cannot be disconnected. Further, determining that each of the terminals 104 and 105 is not communicating is equivalent to determining that the communication line can be disconnected.
Further, the recognition software is software for each of the terminals 104 and 105 to specify the operating status of the user A. For example, according to the recognition software, each of the terminals 104 and 105 has a mouse cursor moving (that is, user A is moving the mouse) or a character is input (that is, user A is inputting a character). What is the displayed WEB site (that is, what WEB site is the user A looking at), and whether the user A is captured by the cameras of the terminals 104 and 105 (that is, the user A is the terminal 104). , Are you sitting in the seat in front of 105) and so on. A technique such as face recognition may be used to identify the user in the camera.

The data storage device 106 is a device that stores data indicating a criterion for determination performed by each of the terminals 104 and 105 using the recognition software.
For example, the data storage device 106 stores information indicating the communication tendency of the user A as data indicating a determination criterion. Examples of the information indicating the communication tendency of the user A include an operation history indicating the past operation of the user A, environment information indicating the usage environment of the terminals 104 and 105 of the user A, and the like.
Specific examples of the operation history of the user A include the time when the user A sits in front of the terminals 104 and 105, the time when the user A sits in front of the terminals 104 and 105, and the like.
Specific examples of the environment information of the user A are the time when the user A actually starts the data communication in each time zone, the time when the data communication ends, the amount of communication in the data communication, the opportunity to perform the data communication, and the like. .. The opportunity for data communication is information indicating when the user A starts data communication. For example, when the user A sits in the seat in front of the terminals 104 and 105 and the user A always starts data communication, "the user A sits in the seat in front of the terminals 104 and 105" is an opportunity. Further, for example, when the user A sits in the seat in front of the terminals 104 and 105 at a specific time zone and the user A always starts data communication, the "user A is the terminal 104 and 105 at a specific time zone". "Sit in the seat in front of you" is an opportunity.

Each of the terminals 104 and 105 sets the communication line used by the user A based on the operation history of the user A and the environmental information of the user A stored in the data storage device 106 and the current operation of the user A. It is possible to determine whether or not it is possible to disconnect.
For example, each of the terminals 104 and 105 is based on the operation history of the user A stored in the data storage device 106 and the environment information of the user A, regardless of whether or not the user A is sitting in the seat in front of the terminal. If it is analyzed that communication is automatically performed at a specific time on a specific day of the week (that is, without user A operating), the communication line used by user A at a specific time on that specific day of the week is analyzed. Is not possible (that is, the communication line being used by user A cannot be temporarily assigned to another user).

Further, for example, when the user A is sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the user A is communicating with each of the terminals 104 and 105, respectively. It is determined that the user A cannot disconnect the communication line in use (that is, the communication line in use by the user A cannot be temporarily assigned to another user). Further, if the user A is not sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, each of the terminals 104 and 105 determines that the user A is not communicating. Then, it is determined that the communication line being used by the user A can be disconnected (that is, the communication line being used by the user A can be temporarily assigned to another user). Also, when user A is not sitting in front of his / her terminal at a time other than a specific time on a specific day of the week and user A temporarily assigns the communication line in use to another user. When the user A returns (sits) to the seat in front of the own terminal, each of the terminals 104 and 105 disconnects the communication line that the user A has disconnected for resuming communication (that is, assigning to another user). It is necessary to make the user A able to communicate).
The connection and disconnection of the communication line can be switched in about 1 to 2 seconds. Therefore, even after the user A returns to the seat in front of the own terminal and performs the process of identifying the user in the camera, the user A can communicate with the communication line assigned to another user. The process to do is in time.
Each of the terminals 104 and 105 transmits the communication status and the disconnectability status to the line control device 103. Information on the communication status and disconnectability status is transmitted from the line control device 103 to the third communication device 30.

The second communication device 20 is a communication device used by the second user. The second communication device 20 communicates with the third communication device 30 via the communication satellite 50.
As shown in FIG. 3, the second communication device 20 includes a wireless device 201, a GW device 202, a line control device 203, a terminal 204 (an example of a determination unit), a terminal 205 (an example of a determination unit), and a data storage device 206 (an example of a determination unit). An example of a storage unit) is provided.
The broken line in FIG. 3 indicates a network line. The solid line in FIG. 3 indicates a communication line.

The wireless device 201 is a wireless device that communicates with the third communication device 30 via the communication satellite 50.
For example, the wireless device 201 includes a modem, a frequency converter, an amplifier, an antenna, and the like. The wireless device 201 transmits / receives communication data between the second communication device 20 and the third communication device 30.

The GW device 202 is a device that controls a path for communication.
Specifically, the GW device 202 controls (that is, determines) a route for transmitting communication data to the wireless device 201. Further, the GW device 202 controls a route for transmitting the communication data received by the wireless device 201 to the terminal 204, the terminal 205, and the line control device 203. Further, the GW device 202 controls the wireless device 201 in response to the instruction signal of the line control device 203, and controls the communication line used for communication by changing the frequency band used for communication.

The line control device 203 is a device that manages the line of the second communication device 20. The line control device 203 obtains the communication status and disconnectability status of the terminals 204 and 205 from the recognition SW. The line control device 203 transmits the obtained communication status / disconnectability status information to the third communication device 30. Further, the line control device 203 is a control device that connects the communication line and disconnects the communication line in the second communication device 20 by controlling the GW device 202 in response to an instruction signal received from the third communication device 30. ..

Each of the terminals 204 and 205 is a terminal that can be used by a user in a place where the second communication device 20 is installed (hereinafter, referred to as "user B", user B is an example of the second user). Recognition software for determining whether or not communication is being performed is installed in each of the terminals 204 and 205.
For example, the recognition software is packet capture software, and each of the terminals 204 and 205 captures packets flowing through a communication line, displays the contents, analyzes, and aggregates the data flowing through the network. Identify traffic and its changes. Then, it is determined that each of the terminals 204 and 205 is in a state of not communicating when the communication amount is zero, and is in a state of communicating when the communication amount is not zero. It should be noted that determining that each of the terminals 204 and 205 is in a state of communication is equivalent to determining that the communication line cannot be disconnected. Further, determining that each of the terminals 204 and 205 is not communicating is equivalent to determining that the communication line can be disconnected.
Further, the recognition software is software for each of the terminals 204 and 205 to specify the operating status of the user B. For example, according to the recognition software, each of the terminals 204 and 205 has a mouse cursor moving (that is, user B is moving the mouse) or a character is input (that is, user B is inputting a character). What is the displayed WEB site (that is, what WEB site is the user B looking at), and whether the camera of the terminals 204 and 205 shows the user B (that is, the user B is the terminal 104). , Are you sitting in the seat in front of 105) and so on. A technique such as face recognition may be used to identify the user in the camera.

The data storage device 206 is a device that stores data indicating a criterion for determination performed by each of the terminals 204 and 205 using the recognition software.
For example, the data storage device 206 stores information indicating the communication tendency of the user B as data indicating a determination criterion. Examples of the information indicating the communication tendency of the user B include an operation history indicating the past operation of the user B, environment information indicating the usage environment of the terminals 204 and 205 of the user B, and the like.
Specific examples of the operation history of the user B include the time when the user B sits in front of the terminals 204 and 205, the time when the user B sits in front of the terminals 204 and 205, and the like.
Specific examples of the environment information of the user B are the time when the user B actually starts the data communication in each time zone, the time when the data communication ends, the amount of communication in the data communication, the opportunity to perform the data communication, and the like. .. The opportunity for data communication is information indicating when the user B starts data communication. For example, when user B sits in the seat in front of terminals 204 and 205 and user B always starts data communication, "user B sits in the seat in front of terminals 204 and 205" is an opportunity. Further, for example, when the user B sits in the seat in front of the terminals 204 and 205 at a specific time zone and the user B always starts the data communication, the "user B is the terminal 204 and 205 at the specific time zone". "Sit in the seat in front of you" is an opportunity.

Each of the terminals 204 and 205 sets the communication line used by the user B based on the operation history of the user B and the environmental information of the user A stored in the data storage device 206 and the current operation of the user A. It is possible to determine whether or not it is possible to disconnect.
For example, each of the terminals 204 and 205 is based on the operation history of the user B stored in the data storage device 206 and the environment information of the user B, regardless of whether or not the user B is sitting in the seat in front of the own terminal. If it is analyzed that communication is automatically performed at a specific time on a specific day of the week (that is, without user B operating), the communication line used by user B at a specific time on that specific day of the week is analyzed. Is not possible (that is, the communication line being used by user B cannot be temporarily assigned to another user).

Further, for example, when the user B is sitting in the seat in front of the own terminal at a time other than the specific time on the above-mentioned specific day of the week, the user B is communicating with each of the terminals 204 and 205, respectively. It is determined that the user B cannot disconnect the communication line in use (that is, the communication line in use by the user B cannot be temporarily assigned to another user). Further, if the user B is not sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, each of the terminals 204 and 205 determines that the user B is not communicating. Then, it is determined that the communication line being used by the user B can be disconnected (that is, the communication line being used by the user B can be temporarily assigned to another user). Also, when user B is not sitting in front of his / her terminal at a time other than a specific time on a specific day of the week and user B temporarily assigns the communication line in use to another user. When the user B returns (sits) to the seat in front of the own terminal, each of the terminals 204 and 205 disconnects the communication line that the user B has disconnected for resuming communication (that is, assigning to another user). It is necessary to make the user B able to communicate).
The connection and disconnection of the communication line can be switched in about 1 to 2 seconds. Therefore, even after the user B returns to the seat in front of the own terminal and performs the process of identifying the user in the camera, the user B can communicate with the communication line assigned to another user. The process to do is in time.
Each of the terminals 204 and 205 transmits the communication status and the disconnectability status to the line control device 203. Information on the communication status and disconnectability status is transmitted from the line control device 203 to the third communication device 30.

The third communication device 30 is a communication device that manages a communication line in the communication system 1. The third communication device 30 determines a frequency band used for communication in the communication satellites 40 and 50, and the first communication device 10 and the second communication device via the communication satellites 40 and 50 are used so as to use the determined frequency band. Notify 20. Then, the third communication device 30 communicates with the first communication device 10 via the communication satellite 40. Further, the third communication device 30 communicates with the second communication device 20 via the communication satellite 50.
As shown in FIG. 4, the third communication device 30 includes a wireless device 301, a GW device 302, a line control device 303a, a line control device 303b (an example of a first control unit, an example of a second control unit), and a terminal 304 (an example of a first control unit and a second control unit). A determination unit), a terminal 305 (an example of a determination unit), and a data storage device 306 (an example of a storage unit) are provided.
The broken line in FIG. 4 indicates a network line. The solid line in FIG. 4 indicates a communication line.

The wireless device 301 is a wireless device that communicates with the first communication device 10 via the communication satellite 40. Further, the wireless device 301 is a wireless device that communicates with the second communication device 20 via the communication satellite 50.
For example, the wireless device 301 includes a modem, a frequency converter, an amplifier, an antenna, and the like. The wireless device 301 transmits / receives communication data between the first communication device 10 and the third communication device 30, and transmits / receives communication data between the second communication device 20 and the third communication device 30.

The GW device 302 is a device that controls a path for communication.
Specifically, the GW device 302 controls (that is, determines) a route for transmitting communication data to the wireless device 301. Further, the GW device 302 controls a route for transmitting the communication data received by the wireless device 301 to the terminals 304, the terminal 305, and the line control devices 303a and 303b. Further, the GW device 302 controls the wireless device 301 in response to the instruction signal of the line control device 303a, and controls the communication line used for communication by changing the frequency band used for communication.

The line control device 303a is a device that manages the line of the third communication device 30. The line control device 303a obtains the communication status and disconnectability status of the terminals 304 and 305 from the recognition SW. The line control device 303 transmits the obtained communication status / disconnectability status information to the line control device 303b. Further, the line control device 303a is a control device that connects the communication line and disconnects the communication line in the third communication device 30 by controlling the GW device 302 in response to an instruction signal received from the line control device 303b.
The line control device 303b is a control device that connects the communication line, disconnects the communication line, and preferentially manages the communication line in the communication system 1. For example, the line control device 303b transmits an instruction signal for managing the priority of the user's communication line to the first communication device 10. Further, the line control device 303b transmits an instruction signal for managing the priority of the user's communication line to the second communication device 20. Further, the line control device 303b receives a notification of the status of the first communication device 10 from the first communication device 10. Further, the line control device 303b receives a notification of the status of the second communication device 20 from the second communication device 20.

Each of the terminals 304 and 305 is a terminal that can be used by a user (hereinafter, referred to as "user C") in a place where the third communication device 30 is installed. Recognition software for determining whether or not communication is being performed is installed in each of the terminals 304 and 305.
For example, the recognition software is packet capture software, and each of the terminals 304 and 305 captures packets flowing through a communication line and displays the contents, analyzes and aggregates the data flowing through the network. Identify traffic and its changes. Then, it is determined that each of the terminals 304 and 305 is in a state of not communicating when the communication amount is zero, and is in a state of communicating when the communication amount is not zero. It should be noted that determining that each of the terminals 304 and 305 is in a state of communication is equivalent to determining that the communication line cannot be disconnected. Further, determining that each of the terminals 304 and 305 is not communicating is equivalent to determining that the communication line can be disconnected.
Further, the recognition software is software for each of the terminals 304 and 305 to specify the operating status of the user C. For example, according to the recognition software, each of the terminals 304 and 305 has a mouse cursor moving (that is, user C is moving the mouse) or a character is input (that is, user C is inputting a character). What is the displayed WEB site (that is, what WEB site is the user C looking at), and whether the user in the cameras of terminals 304 and 305 is the user C (that is, the user). Whether C is sitting in the seat in front of terminals 304 and 305) and the like are specified. A technique such as face recognition may be used to identify the user in the camera.

The data storage device 306 is a device that stores data indicating a criterion for determination performed by each of the terminals 304 and 305 using the recognition software.
For example, the data storage device 306 stores information indicating the communication tendency of the user C as data indicating a determination criterion. Examples of the information indicating the communication tendency of the user C include an operation history indicating the past operation of the user C, environment information indicating the usage environment of the terminals 304 and 305 of the user C, and the like.
Specific examples of the operation history of the user C include the time when the user C sits in front of the terminals 304 and 305, the time when the user C sits in front of the terminals 304 and 305, and the like.
Specific examples of the environment information of the user C are the time when the user C actually starts the data communication in each time zone, the time when the data communication ends, the amount of communication in the data communication, the opportunity to perform the data communication, and the like. .. The opportunity for data communication is information indicating when the user C starts data communication. For example, when the user C sits in the seat in front of the terminals 304 and 305 and the user C always starts data communication, "the user C sits in the seat in front of the terminals 304 and 305" is an opportunity. Further, for example, when the user C sits in the seat in front of the terminals 304 and 305 at a specific time zone and the user C always starts data communication, the "user C is the terminal 304 and 305 at a specific time zone". "Sit in the seat in front of you" is an opportunity.

Each of the terminals 304 and 305 sets the communication line used by the user C based on the operation history of the user C and the environmental information of the user C stored in the data storage device 306 and the current operation of the user C. It is possible to determine whether or not it is possible to disconnect.
For example, each of the terminals 304 and 305 is based on the operation history of the user C accumulated in the data storage device 306 and the environment information of the user C, regardless of whether or not the user C is sitting in the seat in front of the own terminal. If it is analyzed that communication is automatically performed at a specific time on a specific day of the week (that is, without user C operating), the communication line used by user C at a specific time on that specific day of the week is analyzed. Is not possible (that is, the communication line being used by user C cannot be temporarily assigned to another user).

Further, for example, when the user C is sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the user C is communicating with each of the terminals 304 and 305, respectively. It is determined that the user C cannot disconnect the communication line in use (that is, the communication line in use by the user C cannot be temporarily assigned to another user). Further, if the user C is not sitting in the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, each of the terminals 304 and 305 determines that the user C is not communicating. Then, it is determined that the communication line being used by the user C can be disconnected (that is, the communication line being used by the user C can be temporarily assigned to another user). Also, when user C is not sitting in front of the terminal at a time other than a specific time on a specific day of the week and user C temporarily assigns the communication line in use to another user. When the user C returns (sits) to the seat in front of the own terminal, each of the terminals 304 and 305 disconnects the communication line that the user C has disconnected for resuming communication (that is, assigning to another user). It is necessary to make it possible for user C to communicate).
The connection and disconnection of the communication line can be switched in about 1 to 2 seconds. Therefore, even after the user C returns to the seat in front of the own terminal and performs the process of identifying the user in the camera, the user C can communicate with the communication line assigned to another user. The process to do is in time.
Each of the terminals 304 and 305 transmits the communication status and the disconnectability status to the line control device 303a. Information on the communication status and disconnectability status is transmitted from the line control device 303a to the line control device 303b.

The communication satellite 40 amplifies the communication signal between the first communication device 10 and the third communication device 30 that is transmitted and received using the communication line of the frequency band determined by the third communication device 30.

The communication satellite 50 amplifies the communication signal between the second communication device 20 and the third communication device 30 that is transmitted and received using the communication line of the frequency band determined by the third communication device 30.

Next, the process of switching the line performed by the communication system 1 will be described.
Here, the processing flow of the communication system 1 shown in FIG. 5 will be described.
It is assumed that the user A uses the terminal 104 to communicate with the terminal 304. Further, it is assumed that the user B tries to communicate with the terminal 305 by using the terminal 205 which has a low priority and cannot communicate with the terminal 305 at the present time while the user A is communicating.

When the terminal 104 starts communication with the third communication device 30, the terminal 104 reads data indicating a criterion for determination made by using the recognition software from the data storage device 106.
It is determined whether or not the first communication device 10 can disconnect the first communication line in use (step S1).
When the terminal 104 determines that the first communication line cannot be disconnected (NO in step S1), the terminal 104 returns to the process of step S1.
Further, when the terminal 104 determines that the first communication line can be disconnected (YES in step S1), the terminal 104 transmits the first determination result indicating that the first communication line can be disconnected via the line control device 103 and the communication satellite 40. It transmits to the third communication device 30.

The line control device 303a receives the first determination result from the first communication device 10. The line control device 303a transmits the first determination result to the line control device 303b. The line control device 303b receives the first determination result from the line control device 303a. The line control device 303a determines that the frequency band assigned to the first communication line is an empty frequency band based on the received first determination result.

When the line control device 303b receives the first determination result, the line control device 303b disconnects the first communication line that is not performing data communication between the terminal 104 and the terminal 304 (step S2).
For example, the line control device 303b transmits a control signal for disconnecting the first communication line used for communication between the terminal 104 and the terminal 304 to the line control device 303a and the line control device 103. The line control device 303a and the line control device 103 receive the control signal, and output an instruction signal instructing the wireless device 301 and the wireless device 101 to disconnect the first communication line in response to the received control signal. The wireless device 301 and the wireless device 101 disconnect the first communication line used for communication between the terminal 104 and the terminal 304 in response to the instruction signal. That is, the wireless device 301 and the wireless device 101 stop communication using the frequency band previously assigned to the first communication line.

Here, it is assumed that the user B performs an operation on the terminal 205 to start communication with the terminal 305. The terminal 205 requests the third communication device 30 to perform data communication with the terminal 305 via the communication satellite 50 in response to the operation by the user B.
In response to the request, the line control device 303b disconnects the first communication line between the terminal 104 and the terminal 304 to the second communication line between the terminal 205 and the terminal 305 via the line control device 303a. The frequency band allocated to the first communication line is allocated before the first communication line (step S3).
For example, the line control device 303b assigns a control signal that allocates the frequency band of the first communication line used for communication between the terminal 104 and the terminal 304 to the second communication line between the terminal 205 and the terminal 305. Transmission is performed to the line control device 303a, the line control device 103, and the line control device 203.
The line control device 303a outputs an instruction signal to the wireless device 301 in response to the control signal. In response to the instruction signal, the wireless device 301 uses the frequency band of the second communication line between the terminal 205 and the terminal 305 as the frequency of the first communication line used for communication between the terminal 104 and the terminal 304. Switch to the band.
Further, the line control device 203 outputs an instruction signal to the wireless device 201 in response to the control signal. In response to the instruction signal, the wireless device 201 uses the frequency band of the second communication line between the terminal 205 and the terminal 305 as the frequency of the first communication line used for communication between the terminal 104 and the terminal 304. Switch to the band.
Further, in the line control device 103, the frequency band of the first communication line used for the communication between the terminal 104 and the terminal 304 is assigned to the communication between the terminal 205 and the terminal 305 by the control signal. Is recognized, and it is determined that the frequency band cannot be used until the line control device 303b gives permission to use the line again.

The line control device 303b determines whether or not communication between the terminal 104 and the terminal 304 is resumed (step S4).

For example, the terminal 104 determines a specific day of the week from the operation history of the user A and the environment information of the user A stored in the data storage device 106, regardless of whether or not the user A is sitting in the seat in front of the terminal. When it is analyzed that communication is automatically performed at a specific time of the line, a notification signal notifying that communication between the terminal 104 and the terminal 304 is resumed at a specific time of the specific day of the week is sent to the line. It is transmitted to the third communication device 30 via the control device 103. The line control device 303b determines whether or not to receive the notification signal from the first communication device 10 via the line control device 303a. Then, the line control device 303b determines that the communication between the terminal 104 and the terminal 304 has not yet resumed when the notification signal has not been received. Further, when the line control device 303b receives the notification signal, it determines that the communication between the terminal 104 and the terminal 304 is resumed.

Further, for example, when the terminal 104 determines from the image taken by the camera that the user A has returned to the seat in front of the own terminal at a time other than the specific time on the specific day of the week described above, the terminal 104 and the terminal 304 A notification signal notifying that the communication between the two is resumed is transmitted to the third communication device 30 via the line control device 103. The line control device 303b determines whether or not to receive the notification signal from the first communication device 10 via the line control device 303a. Then, the line control device 303b determines that the communication between the terminal 104 and the terminal 304 has not yet resumed when the notification signal has not been received. Further, when the line control device 303b receives the notification signal, it determines that the communication between the terminal 104 and the terminal 304 is resumed.

When the line control device 303b determines that the communication between the terminal 104 and the terminal 304 is not resumed (NO in step S4), the line control device 303b returns to the process of step S4.

Further, when the line control device 303b determines that the communication between the terminal 104 and the terminal 304 is resumed (YES in step S4), the line control device 303b disconnects the second communication line between the terminal 205 and the terminal 305 (step S5). ).
For example, the line control device 303b sends a control signal for disconnecting the second communication line used for communication between the terminal 205 and the terminal 305 via the line control device 303a to the line control device 303a and the line control device 303a. 103, transmission to line control device 203. The line control device 303a, the line control device 103, and the line control device 203 disconnect the second communication line used for communication between the terminal 205 and the terminal 305 in response to the control signal.

The line control device 303b assigns the frequency assigned to the first communication line between the terminal 104 and the terminal 304 to the second communication line before disconnecting the second communication line between the terminal 205 and the terminal 305. A band (that is, a frequency band assigned to the first communication line between the terminal 104 and the terminal 304) is assigned (step S6).
For example, the line control device 303b assigns a control signal that allocates the frequency band of the second communication line used for communication between the terminal 205 and the terminal 305 to the first communication line between the terminal 104 and the terminal 304. Transmission is performed to the line control device 303a, the line control device 103, and the line control device 203.
The line control device 303a outputs an instruction signal to the wireless device 301 in response to the control signal. In response to the instruction signal, the wireless device 301 uses the frequency band of the first communication line between the terminal 104 and the terminal 304 as the frequency of the second communication line used for communication between the terminal 205 and the terminal 305. Switch to the band.
Further, the line control device 103 outputs an instruction signal to the wireless device 101 in response to the control signal. In response to the instruction signal, the wireless device 101 uses the frequency band of the first communication line between the terminal 104 and the terminal 304 as the frequency of the second communication line used for communication between the terminal 205 and the terminal 305. Switch to the band.
Further, in the line control device 203, the frequency band of the second communication line used for the communication between the terminal 205 and the terminal 305 is assigned to the communication between the terminal 104 and the terminal 304 by the control signal. Is recognized, and it is determined that the frequency band cannot be used until the line control device 303b gives permission to use it again.

At this time, when there is another free communication line (that is, an unused frequency band), the line control device 303b is used for communication between the disconnected terminal 205 and the terminal 305. The frequency band assigned to the vacant communication line may be assigned to the communication line.

The communication system 1 according to the embodiment of the present invention has been described above.
Each of the wireless devices 101, 202, and 302 includes a modem, a frequency converter, a power amplifier, an antenna, and the like, and is a device that transmits and receives data. Each of the wireless devices 101, 202, and 302 changes the setting of the component such as changing the frequency based on the instruction of the line control device which is a higher-level device. The instruction of the line control device is given in the flow of the line control device-GW device-wireless device.
Each of the GW devices 102, 202, and 302 is a device that controls a route in a communication device (performs routing in a network). Each of the GW devices 102, 202, and 302 sees the destination of the communication data received via the wireless device and transmits the data to an appropriate terminal. Further, each of the GW devices 102, 202, and 302 looks at the destination of the data received from the terminal at the time of transmission and goes to an appropriate route of the wireless device (which antenna if the wireless device has a plurality of antennas). (Determine whether to use the route of) and send the data. Each of the line control devices 103, 203, and 303a is a device that manages the line in the communication device, and notifies the host device (line control device 303b) of information on the line usage status of the terminal and whether or not the line can be disconnected. When connecting / disconnecting a line, each of the line control devices 103, 203, and 303a receives an instruction from the line control device 303b, and the line control device that manages the target communication device instructs the subordinate equipment.
The instruction and response for connecting / disconnecting the line is performed only between the "line control device 103, 203, 303a" and the "line control device 303b", and the line control device 303b directly changes the settings of the GW device and the wireless device. There is no such thing.
The line control device 303b is a device that manages the line of the entire communication system, and is a device that makes a final determination and instruction of line connection / disconnection between communication devices. Since the line control device 303b is a device that performs determination / instruction, it is necessary to obtain the status of each communication device from the line control devices 103, 203, and 303a.
Then, the line is disconnected as follows.
For example, when disconnecting the line of the first communication device 10, the line control device 103 determines that the disconnection is possible by looking at the status of the terminals 104 and 105, and notifies the line control device 303b of the information. The line control device 303b determines the disconnection and issues a disconnection instruction to the line control device 103. The line control device 103 receives the disconnection instruction and issues a disconnection instruction to the wireless device 101 via the GW device 102 in order to disconnect the line of the first communication device 10.

The communication system 1 includes a data storage device 106 (an example of a storage unit), a terminal 104 (an example of a determination unit), and a line control device 303b (an example of a first control unit and an example of a second control unit).
The data storage device 106 is information including an operation history indicating the past operation of the user A (an example of the first user) and environment information indicating the usage environment of the terminal 104 (an example of the determination unit) used by the user A. Therefore, the information used for determining whether or not the user A can disconnect the first communication line in use and whether or not to connect the disconnected first communication line is stored.
The terminal 104 determines whether or not to disconnect the first communication line based on the information stored in the data storage device 106.
The line control device 303b (an example of the first control unit) uses the frequency band assigned to the disconnected first communication line by the user B (an example of the second user) based on the determination result by the terminal 104. 2 The frequency band is assigned to the communication line and the second communication line is connected. Further, when the line control device 303b (an example of the second control unit) determines to connect the first communication line based on the information stored in the data storage device 106, the line control device 303b disconnects the second communication line and first The frequency band is assigned to the communication line and the first communication line is connected.
By doing so, the communication system 1 can increase the number of users who can communicate as a whole.

In one embodiment of the present invention, the frequency band used in the first communication line used by the user A is assigned to the second communication line used by the user B, and then the first communication line used by the user A. A specific example has been described by taking the case of reallocating the frequency band to. However, in another embodiment of the present invention, the frequency band used in the second communication line used by the user B is assigned to the first communication line used by the user A, and then the second communication used by the user B is used. The frequency band may be assigned to the line again. Further, in another embodiment of the present invention, another user is adopted instead of the user A and the user B, and the connection of the communication line is controlled by the same processing as the processing described in one embodiment of the present invention. It may be.

In one embodiment of the present invention, for example, when the user A is sitting in a seat in front of the terminal 104 or the terminal 105 at a time other than the specific time on the above-mentioned specific day of the week, the terminal is the user. A determines that communication is being performed, and the communication line used by user A cannot be disconnected (that is, the communication line used by user A cannot be temporarily assigned to another user). It was explained as a judgment. However, in another embodiment of the present invention, the terminal is at a time other than the specific time on the specific day of the week described above, and even when the user A is sitting in the seat in front of the terminal 104 or the terminal 105. Is only viewing downloaded videos and documents, and if it is determined that data is not being sent or received via the communication line, user A temporarily transfers the communication line in use to another user. It may be determined that it can be assigned. Switching between connection and disconnection of the communication line can be performed in about 1 to 2 seconds. In this case, for example, each of the terminals 104 and 105 is an operation in which the user A moves the mouse cursor to the terminal in use. Is detected, a process of making the communication line assigned to another user available to the user A (that is, transmitting an instruction to the third communication device 30 to allocate the communication line to the terminal in use). That) should be done.

In one embodiment of the present invention, for example, when the user B is sitting in a seat in front of the terminal 204 or the terminal 205 at a time other than the specific time on the above-mentioned specific day of the week, the terminal is the user. B determines that communication is being performed, and the communication line used by user B cannot be disconnected (that is, the communication line used by user B cannot be temporarily assigned to another user). It was explained as a judgment. However, in another embodiment of the invention, the terminal is at a time other than the specific time on the particular day of the week described above, even if the user B is sitting in front of the terminal 204 or 205. Is only viewing downloaded videos and documents, and if it is determined that data is not being sent or received via the communication line, user B temporarily transfers the communication line in use to another user. It may be determined that it can be assigned. Switching between connection and disconnection of the communication line can be performed in about 1 to 2 seconds. In this case, for example, each of the terminals 204 and 205 is an operation in which the user B moves the mouse cursor to the terminal in use. Is detected, a process of making the communication line assigned to another user available to the user B (that is, transmitting an instruction to the third communication device 30 to allocate the communication line to the terminal in use). That) should be done.

In one embodiment of the present invention, for example, when the user C is sitting in the seat in front of the terminal 304 or the terminal 305 at a time other than the specific time on the above-mentioned specific day of the week, the terminal is the user. C determines that communication is being performed, and the communication line being used by user C cannot be disconnected (that is, the communication line being used by user C cannot be temporarily assigned to another user). It was explained as a judgment. However, in another embodiment of the present invention, the terminal is at a time other than the specific time on the specific day of the week described above, even when the user C is sitting in the seat in front of the terminal 304 or the terminal 305. Is only viewing downloaded videos and documents, and if it is determined that data is not being sent or received via the communication line, user C temporarily transfers the communication line in use to another user. It may be determined that it can be assigned. Switching between connection and disconnection of the communication line can be performed in about 1 to 2 seconds. In this case, for example, each of the terminals 304 and 305 is an operation in which the user C moves the mouse cursor to the terminal in use. When is detected, a process may be performed to enable the user C to communicate with the communication line assigned to the other user.

The minimum configuration communication system 1 according to the embodiment of the present invention will be described.
As shown in FIG. 6, the communication system 1 having the minimum configuration according to the embodiment of the present invention includes a storage unit 401, a determination unit 402, a first control unit 403, and a second control unit 404.
The storage unit 401 is information including an operation history indicating the past operation of the first user and environment information indicating the usage environment of the terminal used by the first user, and is the first information being used by the first user. 1 Stores information used for determining whether or not the communication line can be disconnected and whether or not the disconnected first communication line is connected.
The determination unit 402 determines whether or not to disconnect the first communication line based on the information stored in the storage unit 401.
Based on the determination result by the determination unit 402, the first control unit 403 allocates the frequency band assigned to the disconnected first communication line to the second communication line used by the second user, and the frequency band is assigned to the second communication line. Connect the second communication line.
When the second control unit 404 determines that the first communication line is to be connected based on the information stored in the storage unit 401, the second control unit 404 disconnects the second communication line and connects the frequency band to the first communication line. Allocate and connect the first communication line.
By doing so, the communication system 1 can increase the number of users who can communicate as a whole.

In the processing according to the embodiment of the present invention, the order of the processing may be changed as long as the appropriate processing is performed.

Although the embodiment of the present invention has been described, the above-mentioned communication system 1, the first communication device 10, the second communication device 20, the third communication device 30, the wireless devices 101, 201, 301, the GW devices 102, 202, and the line control The devices 103, 203, 303a, 303b, terminals 104, 105, 204, 205, 304, 305, and other control devices may have a computer device inside. The process of the above-mentioned processing is stored in a computer-readable recording medium in the form of a program, and the above-mentioned processing is performed by the computer reading and executing this program. A specific example of a computer is shown below.
FIG. 8 is a schematic block diagram showing a configuration of a computer according to at least one embodiment.
As shown in FIG. 8, the computer 5 includes a CPU 6, a main memory 7, a storage 8, and an interface 9.
For example, the above-mentioned communication system 1, first communication device 10, second communication device 20, third communication device 30, wireless device 101, 201, 301, GW device 102, 202, line control device 103, 203, 303a, 303b. , Terminals 104, 105, 204, 205, 304, 305, and other control devices are each mounted on the computer 5. The operation of each processing unit described above is stored in the storage 8 in the form of a program. The CPU 6 reads a program from the storage 8, expands it into the main memory 7, and executes the above processing according to the program. Further, the CPU 6 secures a storage area corresponding to each of the above-mentioned storage units in the main memory 7 according to the program.

Examples of the storage 8 include HDD (Hard Disk Drive), SSD (Solid State Drive), magnetic disk, optical magnetic disk, CD-ROM (Compact Disk Read Only Memory), DVD-ROM (Digital Versatile Disk Read). , Semiconductor memory and the like. The storage 8 may be internal media directly connected to the bus of computer 5, or external media connected to computer 5 via an interface 9 or a communication line. When this program is distributed to the computer 5 via a communication line, the distributed computer 5 may expand the program in the main memory 7 and execute the above processing. In at least one embodiment, the storage 8 is a non-temporary tangible storage medium.

Further, the above program may realize a part of the above-mentioned functions. Further, the program may be a file that can realize the above-mentioned functions in combination with a program already recorded in the computer device, that is, a so-called difference file (difference program).

Although some embodiments of the present invention have been described, these embodiments are examples and do not limit the scope of the invention. Various additions, omissions, replacements, and changes may be made to these embodiments without departing from the gist of the invention.

1 ... Communication system 5 ... Computer 6 ... CPU
7 ... Main memory 8 ... Storage 9 ... Interface 10 ... First communication device 20 ... Second communication device 30 ... Third communication device 40, 50 ... Communication satellite 101, 201, 301 ... Radio devices 102, 202, 302 ... GW (Gateway) devices 103, 203, 303a, 303b ... Line control devices 104, 105, 204, 205, 304, 305 ... Terminal 106 , 206, 306 ... Data storage device 401 ... Storage unit 402 ... Judgment unit 403 ... First control unit 404 ... Second control unit

Claims (8)

Based on the communication status of the own device, it is determined whether or not to disconnect the communication with another device via the communication satellite, and when it is determined that the communication is disconnected, the determination result indicating that the communication is disconnected is obtained. A means for transmitting the communication frequency to the line control device that allocates the communication frequency to the communication of another device based on the reception of the determination result.
A restart notification signal indicating that the connection of the communication is restarted when it is determined that the connection of the communication is restarted is determined based on the communication status of the own device. A means for transmitting to the line control device that allocates the frequency of the communication to the own device based on the reception of the restart notification signal, and
A communication device equipped with. The operation history of the user who uses the own device, the environment information of the own device, and the current operation information of the user are acquired, and the operation history, the environment information, and the current operation information are used as the basis. The communication device according to claim 1, wherein when it is determined that the communication status is a situation in which communication is not being performed, the communication is determined to be disconnected. The first aspect of claim 1, wherein when the operation history of a user who uses the own device is acquired and it is determined that the communication status is not communicating based on the operation history, the communication is determined to be disconnected. Communication device. The communication device according to claim 1, wherein when the environment information of the own device is acquired and it is determined that the communication status is not communicating based on the environment information, the communication is determined to be disconnected. When the information on the current operation of the user who uses the own device is acquired and it is determined that the communication status is not communicating based on the information on the current operation of the user, the communication is disconnected. The communication device according to claim 1. Claims 1 to claim 1 to claim that when it is determined that the user of the own device has returned based on the image taken by the camera provided in the own device, it is determined that the communication is to be performed and the connection of the communication is restarted. The communication device according to any one of 5. Based on the communication status of the own device, it is determined whether or not to disconnect the communication with another device via the communication satellite, and when it is determined that the communication is disconnected, the determination result indicating that the communication is disconnected is obtained. , A line control device that allocates the frequency of the communication, and transmits the frequency of the communication to the line control device that allocates the frequency of the communication to the communication of another device based on the reception of the determination result.
A restart notification signal indicating that the connection of the communication is restarted when it is determined that the connection of the communication is restarted is determined based on the communication status of the own device. A communication method of transmitting to the line control device that assigns the frequency of the communication to the own device based on the reception of the restart notification signal. The computer of the communication device,
Based on the communication status of the own device, it is determined whether or not to disconnect the communication with another device via the communication satellite, and when it is determined that the communication is disconnected, the determination result indicating that the communication is disconnected is obtained. A means for a line control device that allocates the frequency of the communication and transmits the frequency of the communication to the line control device that allocates the frequency of the communication to the communication of another device based on the reception of the determination result.
A restart notification signal indicating that the connection of the communication is restarted when it is determined that the connection of the communication is restarted is determined based on the communication status of the own device. A means for transmitting to the line control device that assigns the frequency of the communication to the own device based on the reception of the restart notification signal.
A program that functions as.

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