JP6529794B2 - Communication apparatus, communication system, communication method and communication program - Google Patents

Description

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

  In recent years, communication devices capable of using a plurality of communication paths are increasing in communication devices provided with a communication function. As an example, an imaging apparatus (for example, a digital camera) is known that can use both wired communication and wireless communication. For example, the digital camera of Patent Document 1 includes an imaging unit and a camera body that are configured to be removable. When the imaging unit is attached to the camera body, communication between the two is performed by wired communication, and when the imaging unit is separated from the camera body, communication between the two is performed by wireless communication. In the digital camera of Patent Document 1, wireless communication is started at the same time as separation is performed by the operation of the removal switch. This reduces the time lag of switching from wired communication to wireless communication.

JP 2004-200107

  In the case of a communication apparatus capable of using a plurality of communication paths, combined use of a plurality of communication paths is also conceivable. Here, when a plurality of communication paths are used in combination, it is considered that the convenience of the user can be improved by setting the user what data exchange should be performed on which communication path.

The present invention has been made in view of the above circumstances, the communication device capable of using a plurality of communication paths, a communication device capable of easily performing allocation of the communication path for each communication function, a communication system, signals passing It is an object to provide a method and a communication program .

In order to achieve the above object, a communication apparatus according to a first aspect of the present invention is a communication apparatus, and a communication unit that communicates with another communication apparatus using a plurality of communication paths; A communication function allocation unit that allocates a communication function to each communication path in the communication unit, a communication state determination unit that determines a connection state for each communication path, an allocation by the communication function allocation unit, and the communication state judgment unit A communication control unit that controls communication for each of the communication paths according to the determination result, a priority database storing priorities of the plurality of communication paths for each of the communication functions, and comprising a display control unit for displaying a communication function assigned to the communication situation allows the display section visible, the communication control unit, in a communication path in the connection in which the communication function is assigned Performs the communication by using the highest-priority communication path corresponding to the communication function.

In order to achieve the above object, a communication system according to a second aspect of the present invention is a communication system configured to perform communication between a first communication device and a second communication device, 2. The communication unit performs communication with the first communication unit using a plurality of communication paths, and a communication function allocation unit that allocates a communication function to each communication path in the communication unit. A communication status determination unit that determines a connection status for each of the communication paths; and a communication control unit that controls communication for each of the communication paths according to the assignment by the communication function allocation unit and the determination result of the communication status determination unit. a priority database storing the priority of the plurality of communication paths for each of the communication function, are displayed to enable the display unit visible and a communication function assigned to the communication status of each of said communication path ; And a indicates the control unit, the communication control unit, in the communication path being connected to the communication function is assigned, using the highest-priority communication path corresponding to the communication function the Communicate .

In order to achieve the above object, a communication method according to a third aspect of the present invention is a communication method by a first communication device and a second communication device for performing communication using a plurality of communication paths, each of which Assigning a communication function to a communication path, determining the connection status for each communication path, and the priority database storing priorities of the plurality of communication paths for each of the communication functions Among the connected communication paths to which a function is assigned, performing the communication using the communication path with the highest priority corresponding to the communication function, and the communication status and assignment of each of the communication paths comprising a be displayed on the visible display unit and a communication function are.
In order to achieve the above object, a communication program according to a fourth aspect of the present invention is a communication program in a communication system having a first communication device and a second communication device for performing communication using a plurality of communication paths. A communication program by a computer of an apparatus, comprising assigning a communication function to each communication path, determining a connection status for each communication path, and setting the plurality of communication paths for each of the communication functions. The communication is performed using the communication path with the highest priority corresponding to the communication function among the connected communication paths to which the communication function is allocated from the priority database storing the priority. And causing the display unit to display the communication status of each of the communication paths and the assigned communication function in a visible manner.

According to the present invention, it is possible to provide a communication apparatus capable of using a plurality of communication paths, a communication device capable of easily performing allocation of the communication path for each function, a communication system, a communication method and a communication program .

It is a figure which shows the structure of the communication system provided with the communication apparatus in one Embodiment of this invention. It is a figure which shows the example of a priority database. It is a figure for demonstrating the outline | summary of operation | movement of a communication system. It is a flowchart which shows the notional operation | movement in a communication system. It is a flowchart which shows the modification of notional operation | movement in a communication system. It is FIG. 1 of the flowchart which shows operation | movement of the camera function as a specific example of operation | movement of the communication apparatus 200 in a communication system. FIG. 13 is a second diagram of the flowchart showing the operation of the camera function as a specific example of the operation of the communication device 200. FIG. 10 is a first diagram of a flowchart showing an operation of a camera function as a specific example of the operation of the communication device 100. FIG. 7 is a second diagram of the flowchart showing the operation of the camera function as a specific example of the operation of the communication device 100. It is a figure which shows the modification which a 2nd communication part is not direct communication.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the configuration of a communication system provided with a communication apparatus according to an embodiment of the present invention. The communication system includes a plurality of communication devices (the communication device 100 and the communication device 200 in the example of FIG. 1). Communication device 100 and communication device 200 are configured to be able to communicate with each other by a plurality of communication paths. The communication device 100 is, for example, a lens-type imaging device that does not have a display unit. The communication device 200 is, for example, a smartphone.

  The communication apparatus 100 as a first communication apparatus includes an imaging unit 102, a communication unit 104, a recording unit 106, and a control unit 108.

  The imaging unit 102 includes a photographing lens, an imaging element, an analog / digital (A / D) conversion circuit, and the like. The photographing lens is an optical system for forming an image of a subject (not shown) on an imaging device. The imaging element converts an image of a subject formed through a photographing lens into an electrical signal (image signal). The A / D conversion circuit converts an image signal obtained by the imaging device into a digital signal (image data).

  The communication unit 104 communicates with at least the communication device 200. The communication unit 104 includes a plurality of communication units (three communication units corresponding to communication paths (the first communication unit 1041, the second communication unit 1042, and the third communication unit 1043 in the example of FIG. 1). The unit 1041 performs, for example, USB communication, the second communication unit 1042 performs, for example, WiFi communication, and the third communication unit 1043 performs, for example, Bluetooth (registered trademark) communication.

  The recording unit 106 is, for example, a flash memory built in the communication device 100. In the recording unit 106, the photographed image generated by the control unit 108 is recorded in the form of an image file. Further, in the recording unit 106, a priority database 1061 is recorded. The priority database is a database storing settings of priorities of communication paths used for respective communication functions of the communication unit 104.

  FIG. 2 is a diagram showing an example of the priority database 1061. In the example of FIG. 2, the priority is highest for the first place and lowest for the third place. Basically, high priority is set for a communication path that can perform mass communication. For example, USB communication can perform large-capacity communication compared to WiFi communication or Bluetooth communication. Therefore, basically, the first communication unit 1041 has higher priority than the second communication unit 1042 and the third communication unit 1043. In addition, WiFi communication and Bluetooth communication can perform mass communication in comparison with Bluetooth communication. Therefore, basically, the second communication unit 1042 has higher priority than the third communication unit 1043.

  Further, in FIG. 2, as an example of the communication function, a live view transfer function (LV), a live view backup function (BU), a rec view transfer function (RV), a file transfer function (file), command communication The setting of the priority of the function (Com) and the function (Info) of the information communication is shown. The live view transfer function is a function of transferring image data for live view display. The live view backup function is a function of transferring backup image data for live view display when the communication unit performing live view transfer is disconnected. Since it is a backup, the same communication path as live view transfer is not used for the live view backup function. Also, the function of live view backup may not be used depending on, for example, the setting of the user. The function of rec view transfer is a function of transferring a captured image to cause the display unit of the communication apparatus 200 to display the captured image immediately after capturing. File transfer is, for example, a function of transferring an image file recorded in the recording unit 106. The file transfer function is divided into three: JPEG file transfer, RAW file transfer, and moving image (MOV) file transfer, and the priority is set for each file type. The function of command communication is a function of communicating control commands of the communication apparatus 100. The control command includes, for example, an activation command of a camera function and a photographing command. The function of information communication is a function of communicating information of the communication apparatus 100. The information includes, for example, the model name of the communication apparatus 100 and the photographing condition.

  FIG. 2A is a setting example in which communication is performed with the first communication unit 1041 given top priority. That is, in the example of FIG. 2A, the function of live view transfer, the function of record view transfer, the function of file transfer, the function of command communication, and the function of information communication are assigned to the first communication unit 1041. On the other hand, the function of live view backup is assigned to the second communication unit 1042.

  FIG. 2B is a setting example in which communication is performed with priority given to the function of live view transfer over other communication functions. That is, in the example of FIG. 2B, the function of live view transfer, the function of rec view transfer, and the function of command communication are assigned to the first communication unit 1041. On the other hand, the live view backup function, the file transfer function, and the information communication function are assigned to the second communication unit 1042. In the example of FIG. 2B, by reducing the communication function allocated to the first communication unit 1041, it is possible to provide a surplus in the communication capacity for live view transfer.

  FIG. 2C shows a setting example in the case where immediate responsiveness is required. That is, in the example of FIG. 2C, JPEG file transfer is allocated to the first communication unit 1041 as compared with the example of FIG. 2B. By performing only live view transfer, record view transfer, and JPEG file transfer using the first communication unit 1041, confirmation and transfer of a captured image can be performed quickly.

  FIG. 2D shows a setting example in which file transfer is emphasized. That is, in the example of FIG. 2D, file transfer is assigned to a plurality of communication units, as compared with the example of FIG. In this example, one file is divided, and the divided files are transferred in parallel by a plurality of communication units, and the files divided in the communication apparatus 200 are combined. Since transfer is performed using a plurality of communication units, high-speed communication is possible.

  The settings shown in FIGS. 2A to 2D are stored in the priority database 1061 and are read by the control unit 108 as necessary. Then, the communication function is assigned according to the read setting. As a result of this allocation, at the time of communication in each communication function, the communication unit having the highest priority among communication units in connection is used. However, the communication unit set to unused is not used even during connection. For example, in the state where the setting of FIG. 2A is made in the priority database 2101, when the communication path by the first communication unit 1041 is connected, the control unit 212 has a function of live view transfer, rec view transfer The function of file transfer, the function of file transfer, the function of command communication, and the function of information communication are assigned to the first communication unit 1041. Further, the control unit 212 assigns the function of live view backup to the second communication unit 1042. On the other hand, when the communication path by the second communication unit 1042 and the third communication unit 1043 is in connection and the communication path by the first communication unit 1041 is in disconnection, the control unit 212 has the function of live view transfer, REC view The transfer function, the file transfer function, the command communication function, and the information communication function are assigned to the second communication unit 1042.

  The setting of the priority database 1061 is effective when at least two communication units are connected. When only one communication unit is connected, the connected communication unit is used regardless of the content of the priority database 1061.

  Here, the settings shown in FIG. 2A to FIG. 2D are an example and can be appropriately changed. Further, it is not necessary to store all of the settings shown in FIGS. 2A to 2D in the priority database 1061. Furthermore, the user may be able to set the content of the priority database 1061. As described above, there is a difference in communication priority and data capacity depending on functions and apparatuses and devices, and it is preferable that appropriate communication or fail-safe communication be switched for each function according to the situation. Also, depending on the situation, which function is important also differs. For example, a real-time image is important at the time of setting before the start of observation of an object, and a high-definition image is important in observation and photographing. Although the image data is heavy, the command is light in communication.

  The control unit 108 includes a CPU and an ASIC, and controls the overall operation of the communication device 100. The control unit 108 includes an imaging control unit 1081, an image processing unit 1082, a communication function assignment unit 1083, a communication status determination unit 1084, and a communication control unit 1085. The imaging control unit 1081 controls an imaging operation in the imaging unit 102. The image processing unit 1082 performs various types of image processing on the image data obtained by the imaging unit 102 to generate live view image data, captured image data, and the like. The communication function allocation unit 1083 allocates a communication function to each communication unit of the communication unit 104 according to the setting of the priority database 1061. The communication status determination unit 1084 determines the connection status of the communication path by each communication unit of the communication unit 104. The communication control unit 1085 controls the communication by the communication unit according to the assignment by the communication function assignment unit 1083. The communication status determination unit 1084 may not only determine the communication itself, but also determine the environment, the state, and the like of the communication apparatus. If the communication status determination unit 1084 has a GPS, an altimeter, a thermometer, and a battery check function, the results can be included in the determination as well.

  A communication device 200 as a second communication device includes a display unit 202, a touch panel 204, an operation unit 206, a communication unit 208, a recording unit 210, and a control unit 212. The communication device 200 has at least a camera application that provides the user with a camera function by controlling the communication device 100.

  The display unit 202 is, for example, a liquid crystal display, and displays various images. For example, the display unit 202 displays an image based on a live view based on image data for live view transferred from the communication device 100 or an image file recorded on the recording unit 106.

  The touch panel 204 is provided so as to be superimposed on the display screen of the display unit 202. The touch panel 204 detects a touch operation of the user. The operation unit 206 is an operation unit other than the touch panel 204 such as a power button.

  The communication unit 208 communicates with at least the communication device 100. The communication unit 208 includes communication units (three in the example of FIG. 1, a first communication unit 2081, a second communication unit 2082, and a third communication unit 2083 in the example of FIG. 1) corresponding to a plurality of communication paths. The first communication unit 2081 performs, for example, USB communication. The second communication unit 2082 performs, for example, WiFi communication. The third communication unit 2083 performs, for example, Bluetooth communication.

  The recording unit 210 is, for example, a flash memory built in the communication device 200. In the recording unit 210, an application for operating various functions in the communication apparatus 200 is recorded. Further, in the recording unit 210, a priority database 2101 similar to that of the communication device 100 is recorded.

  The control unit 212 includes a CPU and an ASIC, and controls the overall operation of the communication device 200. The control unit 212 includes a display control unit 2121, a communication function assignment unit 2123, a communication status determination unit 2124, and a communication control unit 2125. The display control unit 2121 controls the display operation of the display unit 202. Further, the display control unit 2121 causes the display unit 202 to display a display indicating the state of the communication path. The communication function allocation unit 2123 allocates a communication function to each communication unit of the communication unit 208 according to the setting of the priority database 2101. The communication status determination unit 2124 determines the connection status of the communication path by each communication unit of the communication unit 208. The communication control unit 2125 controls the communication by the communication unit according to the assignment by the communication function assignment unit 2123.

  Hereinafter, the operation of the communication system of the present embodiment will be described. In the following description, unless otherwise noted, the first communication unit 1041 of the communication apparatus 100 and the first communication unit 2081 of the communication apparatus 200 will be collectively referred to as a first communication unit. Similarly, the second communication unit 1042 of the communication device 100 and the second communication unit 2082 of the communication device 200 are collectively referred to as a second communication unit. Similarly, the third communication unit 1043 of the communication apparatus 100 and the third communication unit 2083 of the communication apparatus 200 are collectively referred to as a third communication unit.

  The communication device 100 is, for example, a lens type imaging device. The lens-type imaging device has the blocks shown in FIG. 1 in a lens barrel-shaped housing. The communication device 100 as such a lens type imaging device may be connected to the communication device 200 via the cable 300 as shown in FIG. 3A, for example. At this time, the communication path by the communication apparatus 100 and the first communication unit of the communication apparatus 200 is connected. In the present embodiment, when the communication path by any one of the first communication unit, the second communication unit, and the third communication unit is in connection, the connection of the communication path by the remaining communication units is also attempted. FIG. 3A shows an example in which the WiFi communication by the second communication unit is established and the Bluetooth communication by the third communication unit is not established.

  In the state as shown in FIG. 3A, the user operates the communication device 200 to start a camera application. At this time, as shown in FIG. 3B, the live view image 202a transferred from the communication device 100 to the communication device 200 is displayed on the display unit 202 of the communication device 200. Further, in the present embodiment, icons 202b, 202c, and 202d, which are displays representing the state of the communication path between the communication device 100 and the communication device 200, are also displayed. The state of the communication path includes, for example, whether the corresponding communication path is being used for the current communication, whether the corresponding communication path is merely connected, or the corresponding communication path is being disconnected. An icon 202 b indicates the state of the communication path by the first communication unit. In the example of FIG. 3B, the icon 202b is "in use (LV)". Thereby, the user can know that the first communication unit is used for live view transfer. Also, the icon 202 c is “connected”. Thereby, the user can know that the communication path by the second communication unit is connected but not used for data communication. Furthermore, the icon 202 d is “not connected”. Thereby, the user can know that the communication path by the third communication unit is being disconnected. Although the character display is shown in FIG. 3B, it is needless to say that the present invention is not limited to the character display.

  When changing the assignment of the communication function, the user touches, for example, one of the icons 202 b, 202 c, and 202 d. At this time, as shown in FIG. 3C, a list of allocations of communication functions for each current communication path is displayed. The list includes an icon 202e indicating communication functions available between the communication device 100 and the communication device 200, and an icon 202f indicating communication paths associated with the respective communication functions. For example, when the icon 202f is touched by the user, a list of communication paths is displayed. The user selects a desired communication path from the list. In response to this, the communication apparatus 200 changes the assignment of the communication function to the communication path. This assignment is also shared in the communication device 100. Here, as for important functions, it may be displayed that the communication for failsafe is possible even if the current communication is NG. By this, even if USB is disconnected, the user can be given a sense of security that is recovered by WiFi.

In the state where the communication function is assigned to each communication path, when the communication path with high priority is disconnected, communication is performed using the communication path with lower priority. For example, as shown in FIG. 3D, when the cable 300 is disconnected from the communication device 200 and the communication path by the first communication unit is disconnected, using the communication path by the second communication unit being connected, Communication is performed. Since communication is performed on the communication path already connected, it is possible to minimize the influence of disconnection of the communication path. This can minimize opportunity loss due to centralized operation interruption. Such an effect (fail-safe effect) can be expected by negotiating between the devices what to do with the alternative communication when this communication is interrupted (NG) when the communication is completed. Regardless of this, this failsafe effect can be achieved by setting the same settings for each device in advance. However, as the number of candidates for corresponding devices increases, and in situations where the situation changes in a variety of ways, failsafe measures differ depending on the scene, so it is more realistic to decide on the next candidate at the current communication It can correspond. Such fail-safe command communication does not have to handle data as heavy as image communication, so communication can be shared among devices at high speed and simply. Therefore, it may be possible to decide on a failsafe measure according to each scene or condition and communicate or negotiate. As an example of this condition, other than "when communication is disconnected", when communication is slow, when battery is exhausted, when moving to a place, when temperature is lowered, when requested communication speed is changed There are cases where it is no longer an environment where wireless can be used, but it will be complicated to list them and explain them briefly.
・ Change of place (near → far) Function A, communication method X, function B, communication method X
・ Change of place (far → near) Function A, communication method Y, function B, communication method Y
・ Temperature decrease Function A, communication method X, function B, communication method Z
・ Battery consumption Function A, communication method Z, function B, communication method Z
It is needless to say that the fail-safe communication method should be changed to an optimal type according to the power supply design of the device, antenna design, connector design and the like. Also, in some cases, the wired connection may be fail safe. In this case, appropriate control may be performed, such as enabling the connector, or the user may be advised by voice or visual information to suggest the user a wired connection. Devices are made. Depending on the communication method, there are security issues and password setting is required, but such a procedure is automatically performed in advance by such negotiation.

  FIG. 4 is a flowchart showing a conceptual operation in the communication system of the present embodiment. The process of FIG. 4 is performed by at least one of the control unit 212 of the communication apparatus 200 and the control unit 108 of the communication apparatus 100. Below, it demonstrates as a control part, without distinguishing both.

  In step S101, the control unit determines whether there is a change in the connection status of the communication path. The case where there is a change in the connection status of the communication path means that the communication path which has not been connected is newly connected or the communication path which has been connected is disconnected. If it is determined in step S101 that there is a change in the connection status of the communication path, the process proceeds to step S102. If it is determined in step S101 that there is no change in the connection status of the communication path, the process proceeds to step S105.

  In step S102, the control unit determines whether all communication paths have been disconnected. If it is determined in step S102 that all communication paths have been disconnected, the process of FIG. 4 is ended. If it is determined in step S102 that all communication paths have not been disconnected, the process proceeds to step S103.

  In step S103, the control unit allocates the communication function to the communication path according to the current state of the communication path and the content of the priority database. At this time, the control unit refers to the priority database and assigns each communication function to the communication path having the highest priority among the communication paths being connected. In addition to processing for reducing the size of image data to be transferred in other communications such as live view transfer, and reducing the compression rate, processing for reducing the transfer frame rate may be considered. Thereafter, the process proceeds to step S104.

  In step S104, the control unit executes various communication processes using the communication unit to which the communication function is assigned in step S103. Thereafter, the process returns to step S101.

  In step S105, the control unit determines whether to prioritize file transfer. The case of prioritizing file transfer is, for example, the case where large-capacity image files need to be transferred. If it is determined in step S105 that priority is not given to file transfer, the process returns to step S101. If it is determined in step S105 that file transfer is prioritized, the process proceeds to step S106.

  In step S106, the control unit performs file transfer priority processing. Thereafter, the process returns to step S101. The file transfer priority process is, for example, a process of assigning the file transfer function to a plurality of communication paths as shown in FIG. 2 (d). In addition to processing for reducing the size of image data to be transferred in other communications such as live view transfer, and reducing the compression rate, processing for reducing the transfer frame rate may be considered.

  FIG. 5 is a flowchart showing a modification of the conceptual operation in the communication system of the present embodiment. The process in FIG. 5 is also performed in at least one of the control unit 212 of the communication apparatus 200 and the control unit 108 of the communication apparatus 100. Below, it demonstrates as a control part, without distinguishing both.

  In step S201, the control unit determines whether there is a change in the connection status of the communication path. If it is determined in step S201 that there is a change in the connection status of the communication path, the process proceeds to step S202. If it is determined in step S201 that there is no change in the connection status of the communication path, the process proceeds to step S206.

  In step S202, the control unit activates an unstarted communication path. Thereafter, the process proceeds to step S203. For example, when the connection of the communication path by the first communication unit is confirmed and the second communication unit is connected, the control unit attempts to activate the communication path by the third communication unit. Also, for example, when disconnection of the communication path by the first communication unit is confirmed and the second communication unit is connected, the control unit activates the communication path by the first communication unit and the third communication unit. Try.

  In step S203, the control unit determines whether all communication paths have been disconnected. If it is determined in step S203 that all communication paths have been disconnected, the process of FIG. 5 is ended. If it is determined in step S203 that all communication paths have not been disconnected, the process proceeds to step S204.

  In step S204, the control unit allocates the communication function to the communication path in accordance with the current state of the communication path and the content of the priority database. Other than the communication method, in addition to processing for reducing the size of image data to be transferred in other communication such as live view transfer or reducing the compression rate, processing for reducing the transfer frame rate may be considered. Thereafter, the process proceeds to step S205.

  In step S205, the control unit executes various communication processes using the communication unit to which the communication function is assigned in step S204. Thereafter, the process returns to step S201.

  In step S206, the control unit determines whether to prioritize file transfer. If it is determined in step S206 that the file transfer is not prioritized, the process returns to step S201. If it is determined in step S206 that file transfer is prioritized, the process proceeds to step S207.

  In step S207, the control unit performs file transfer priority processing. Thereafter, the process returns to step S201.

  FIG. 6A and FIG. 6B are flowcharts showing the operation when the camera function is selected by the application of the communication device 200 as a specific example of the operation of the communication device 200 in the communication system of the present embodiment. The processes of FIGS. 6A and 6B are controlled by the control unit 212. Here, the process of FIGS. 6A and 6B is a specific example of the process of FIG. As in the process of FIG. 5, a process of executing activation of an unstarted communication path may be added.

  In step S301, the control unit 212 causes the display unit 202 to display an icon representing an application recorded in the recording unit 210. The icons at least include an icon corresponding to the camera application.

  In step S302, the control unit 212 determines whether a camera start instruction has been issued. For example, when the icon of the camera application displayed on the display unit 202 is touched, it is determined that a camera start instruction has been issued. If it is determined in step S302 that a camera start instruction has not been issued, the process proceeds to step S303. If it is determined in step S302 that a camera start instruction has been issued, the process proceeds to step S304.

  In step S303, the control unit 212 executes other processing. The other processes are, for example, a process related to a telephone function and a process related to an electronic mail function. Description of the details of the other processing is omitted.

  In step S304, the control unit 212 assigns communication functions to the respective communication paths in accordance with the settings of the priority database 2101. At this time, the control unit 212 refers to the priority database 2101 and allocates each communication function to the communication path having the highest priority among the communication paths under connection. The initial setting of the priority database 2101 is assumed to be, for example, the setting of FIG.

  In step S305, the control unit 212 transmits the shared command to the communication apparatus 100 using the communication path for command communication. The sharing command is a command for sharing the setting of the assignment of the communication function with the communication apparatus 100.

  In step S306, the control unit 212 determines whether a sharing command has been received from the communication apparatus 100. If it is determined in step S306 that the sharing command has been received from the communication apparatus 100, the process proceeds to step S307. If it is determined in step S306 that the sharing command has not been received from the communication apparatus 100, the process proceeds to step S308. Note that the communication device 100 (imaging device) may not have the function of sending a sharing command, in which case these processes are unnecessary, and other operations such as network communication, insertion of a memory card, setting by a PC, etc. Alternative switching is also possible.

  In step S307, the control unit 212 changes the assignment of each communication path in accordance with the setting of assignment of the communication function or the sharing command. In step S308, the control unit 212 receives the live view image via the live view transfer communication path and receives the live view backup image via the live view backup communication path. Then, the control unit 212 causes the display unit 202 to display a live view based on the live view image or the live view backup image. When both the live view image and the live view backup image are received, the control unit 212 causes the display unit 202 to display the live view based on the live view image. On the other hand, when only the live view backup image is received, the control unit 212 causes the display unit 202 to display the live view based on the live view backup image.

  In step S309, the control unit 212 indicates the state of the communication path between the communication device (such as an imaging device) 100 and the communication device (such as a smartphone) 200, as shown in FIG. The display unit 202 displays 202 d. As a result, the user can operate the device with confidence while checking the communication state and the fail safe at the time of communication failure. Depending on the situation, it plays an important role in confirmation and decision making at the time of various operations, such as switching the communication state. In particular, unlike wired communications, such as wireless communications, it is difficult to visually identify the communication status, so this device is effective. Furthermore, communication setting may be performed for each function of the device.

  In step S310, the control unit 212 determines whether the user has changed the assignment of the communication function. For example, when the communication path is selected on the screen as shown in FIG. 2C, it is determined that the assignment change operation has been performed. If it is determined in step S310 that the user has made an operation to change the assignment of communication functions, the process proceeds to step S311. If it is determined in step S310 that the user has not performed an operation to change the assignment of communication functions, the process proceeds to step S313. Here, as for important functions, it may be displayed that the communication for failsafe is possible even if the current communication is NG. By this, even if USB is disconnected, the user can be given a sense of security that is recovered by WiFi. Here, since the observation operation is very important in the example of the camera, steps such as fail safe and winding are included. When this image observation is interrupted, visual confirmation can not be performed, and an impression as if the device is broken is received. In addition, if the observation target is lost, the user's judgment is also wrong. Furthermore, in many cases, the device is operated based on the observation result, and focusing and exposure may be adjusted while watching the same, or movement control of the device itself may be performed. Assuming this, it is important to switch to another communication with failsafe during live view. This fail safe may involve not only the live view communication duration but also the change of the frame rate and the change of the image quality. Negotiation is important including these things. Of course, regardless of live view (observation), it is needless to say that such allowance measures are important as appropriate depending on the device and purpose. Here, in order to simplify the explanation, these steps are included particularly at the timing of S310.

  In step S311, the control unit 212 assigns communication functions to the respective communication paths according to the user operation. In step S312, the control unit 212 transmits a shared command to the communication apparatus 100 using the communication path for command communication. Thereby, the change contents of the assignment of the communication function made in the communication device 200 are shared also in the communication device 100. This is because this example is described based on an example in which the operating user holds the communication apparatus 200. Of course, an application in which the communication apparatus 100 transmits to the communication apparatus 200 and negotiates is also possible. Conceivable. In addition, it is also assumed that another operation device instructs the remote communication device 200 to set the communication device 100. In the present invention, since the communication setting can be changed frequently for each function, another operating device may set the communication devices 100 and 200 simultaneously.

  In step S313, the control unit 212 determines whether the user has performed a shooting operation. For example, when the predetermined button of the operation unit 206 is operated or when the touch release operation is performed via the touch panel 204, it is determined that the photographing operation is performed by the user. If it is determined in step S313 that the user has performed a shooting operation, the process proceeds to step S314. If it is determined in step S313 that the user has not performed a shooting operation, the process proceeds to step S321.

  In step S314, the control unit 212 determines whether there is a change in the connection status of the communication path. If it is determined in step S314 that there is a change in the connection status of the communication path, the process proceeds to step S315. If it is determined in step S314 that there is no change in the connection status of the communication path, the process proceeds to step S317.

  In step S315, the control unit 212 assigns communication functions to the respective communication paths in accordance with the settings in the priority database 2101. In step S316, the control unit 212 transmits the shared command to the communication apparatus 100 using the communication path for command communication. Thereby, the change contents of the assignment of the communication function made in the communication device 200 are shared also in the communication device 100. Here, since the shooting operation is very important in the example of the camera, steps such as fail-safe and winding are included, but of course, depending on the device and purpose regardless of shooting, depending on the device and purpose It goes without saying that such treatment measures are important. Here, in order to simplify the explanation, these steps are included especially after Y of S313.

  In step S317, the control unit 212 transmits an imaging command to the communication apparatus 100 using the communication path for command communication.

  In step S318, the control unit 212 determines whether a sharing command has been received from the communication apparatus 100. If it is determined in step S318 that the sharing command has been received from the communication apparatus 100, the process proceeds to step S319. If it is determined in step S318 that the sharing command has not been received from the communication apparatus 100, the process proceeds to step S320.

  In step S319, the control unit 212 changes the allocation of each communication path according to the sharing command. Thereby, the change contents of the assignment of the communication function made in the communication apparatus 100 are shared also in the communication apparatus 200. These concepts are the contents of setting the communication method individually for each function or negotiating the fail-safe method among the devices, and it is possible to specify which one is specified from which one. As described above. Although the device with the function to be actually controlled is written in the example of making a request according to each function, the other communication device may know what kind of function it has. is there. In addition, a device having a high calculation speed may determine the communication status and the capability of the other device to specify a sharing command. At this time, the function may be shared with another device in cooperation with the Internet.

  In step S320, the control unit 212 receives the rec view image via the rec view transfer communication path. Then, the control unit 212 causes the display unit 202 to display the rec view based on the rec view image.

  In step S321, the control unit 212 determines whether a file transfer operation has been performed by the user. For example, when an operation of a predetermined button or a predetermined touch operation is performed, it is determined that the file transfer operation is performed by the user. If it is determined that the file transfer operation has been performed by the user in step S321, the process proceeds to step S322. If it is determined in step S321 that the file transfer operation has not been performed by the user, the process proceeds to step S331.

  In step S322, the control unit 212 determines whether there is a change in the connection status of the communication path. If it is determined in step S322 that there is a change in the connection status of the communication path, the process proceeds to step S323. If it is determined in step S322 that there is no change in the connection status of the communication path, the process proceeds to step S325.

  In step S323, the control unit 212 assigns communication functions to the respective communication paths in accordance with the settings in the priority database 2101.

  In step S324, the control unit 212 transmits the shared command to the communication apparatus 100 using the communication path for command communication. Thereafter, the process proceeds to step S327. Thereby, the change contents of the assignment of the communication function made in the communication device 200 are shared also in the communication device 100. Note that, as described above, the determination of the status change of the communication path does not necessarily have to be performed at this timing, and since the camera is described here as an example, the file transfer is emphasized. For example, when transmitting result images such as observations or inspections in places where communication is difficult, prompt file transfer is often required, and by taking such measures, for more useful inspections and monitoring As a camera, the user value can be enhanced. It goes without saying that it may be an audio file or a text file obtained by converting inspection results into characters, as well as still and moving image files.

  In step S325, the control unit 212 determines whether to prioritize file transfer. When priority is given to file transfer during operation of the camera function, for example, when it is necessary to transfer a high quality image file during live view display, it is necessary to display a high quality live view image during manual focusing. That's the case. If it is determined in step S325 that file transfer is prioritized, the process proceeds to step S326. If it is determined in step S325 that the file transfer is not prioritized, the process proceeds to step S327. This is the case when not only manual focus but also exposure and angle of view, etc. are to be viewed by controlling a detailed image.

  In step S326, the control unit performs file transfer priority processing. Thereafter, the process proceeds to step S327. The file transfer priority process is, for example, a process of assigning the file transfer function to a plurality of communication paths as shown in FIG. 2 (d). In addition to processing for reducing the size of image data to be transferred in other communications such as live view transfer, and reducing the compression rate, processing for reducing the transfer frame rate may be considered.

  In step S327, the control unit 212 transmits a file transfer command to the communication apparatus 100 using the communication path for command communication.

  In step S328, the control unit 212 determines whether a sharing command has been received from the communication apparatus 100. If it is determined in step S328 that the sharing command has been received from the communication apparatus 100, the process proceeds to step S329. If it is determined in step S328 that the sharing command has not been received from the communication apparatus 200, the process proceeds to step S330.

  In step S329, the control unit 212 changes the allocation of each communication path according to the sharing command. In step S330, the control unit 212 receives an image file via the file transfer communication path. Then, the control unit 212 records the received image file in the recording unit 210. Thereafter, the process proceeds to step S331. These concepts are the contents of setting the communication method individually for each function or negotiating the fail-safe method among the devices, and it is possible to specify which one is specified from which one. As described above. Although the device with the function to be actually controlled is written in the example of making a request according to each function, the other communication device may know what kind of function it has. is there. In addition, a device having a high calculation speed may determine the communication status and the capability of the other device to specify a sharing command. At this time, the function may be shared with another device in cooperation with the Internet.

  In step S331, the control unit 212 determines whether an instruction to end the camera has been issued. For example, when an operation of a predetermined button or a predetermined touch operation is performed, it is determined that an instruction to end the camera has been issued. If it is determined in step S331 that an instruction to end the camera has not been issued, the process proceeds to step S304. If it is determined in step S331 that an instruction to end the camera has been issued, the processing of FIGS. 6A and 6B ends.

  7A and 7B are flowcharts showing the operation of the camera function as a specific example of the operation of the communication apparatus 100 in the communication system of the present embodiment. This may be a general camera with a communication function. The processes in FIGS. 7A and 7B are controlled by the control unit 108.

  In step S401, the control unit 212 determines whether a camera start instruction has been issued. For example, a start instruction such as a switch operation is issued. When it is determined in the communication device 200 that a camera activation instruction has been issued, the communication device 100 also determines that a camera activation instruction has been issued. If it is determined in step S401 that the camera start instruction has not been issued, the processing of FIGS. 7A and 7B is ended. If it is determined in step S401 that a camera start instruction has been issued, the process proceeds to step S402. In general, a camera is used for observation and photographing, but the communication device 200 is a portable information terminal or the like, and in many cases the power is always on, so this step is provided assuming that this receives signals. Of course, the camera may be activated by simultaneously turning on the power or operating the communication device 200, but the application thereof can be achieved by changing the direction of the communication request or the like.

  In step S402, the control unit 108 changes the setting of the priority database 1061 in accordance with the sharing command transmitted from the communication device 200 in accordance with the process of step S305.

  In step S403, the control unit 108 determines whether there is a change in the connection status of the communication path. If it is determined in step S403 that there is a change in the connection status of the communication path, the process proceeds to step S404. If it is determined in step S403 that there is no change in the connection status of the communication path, the process proceeds to step S406.

  In step S404, the control unit 108 assigns communication functions to the respective communication paths according to the settings of the priority database 1061. In step S405, the control unit 108 transmits a sharing command to the communication apparatus 200 using the communication path for command communication. Thereby, the change contents of the assignment of the communication function made in the communication apparatus 100 are shared also in the communication apparatus 200. To reiterate, these concepts are the contents of negotiation setting such as setting the communication method individually for each function or what to do with failsafe, among the devices, and designation is made from which one. It is as mentioned above that it is good. Here, it is assumed that transmission is performed from the communication apparatus 100 on the assumption that the determination is made according to the situation such as the imaging result at the time of live view. That is, although the device which has the function to be actually controlled and which can determine the situation at the time of shooting is described as an example which makes a request according to each function, what kind of function it has, There are also cases where the other communication device is aware. In addition, a device having a high calculation speed may determine the communication status or the strength or status of the other device to specify the sharing command. At this time, the function may be shared with another device in cooperation with the Internet. The setting may be performed for each function or each situation, and the timing of the negotiation communication and the direction of the communication may be changed according to the situation.

  In step S406, the control unit 108 transmits a live view image to the communication device 200 using the communication path for live view transfer. When live view images are to be transmitted using a communication path with a low priority, processing for reducing the size, reducing the compression rate, or reducing the transfer frame rate may be used in combination. good. In step S407, the control unit 108 transmits a live view backup image to the communication apparatus 200 using the communication path for live view backup. When live view backup images are to be transmitted using a communication path with low priority, processing to reduce the size, reduce the compression rate, and lower the transfer frame rate is used in combination. Also good.

  In step S408, the control unit 108 determines whether a sharing command has been received from the communication device 200. If it is determined in step S408 that the sharing command has been received from the communication apparatus 200, the process proceeds to step S409. If it is determined in step S408 that the sharing command has not been received from the communication apparatus 200, the process proceeds to step S410.

  In step S409, control unit 108 changes the allocation of each communication path according to the sharing command. Thereby, the change contents of the assignment of the communication function made in the communication device 200 are shared also in the communication device 100.

  In step S410, the control unit 108 determines whether a shooting command has been received. If it is determined in step S410 that the shooting command has been received, the process proceeds to step S411. If it is determined in step S410 that no shooting command has been received, the process proceeds to step S416.

  In step S411, the control unit 108 controls the imaging unit 102 to execute a photographing operation. Then, the control unit 108 performs image processing on the image data obtained by the photographing operation, and records the image file obtained by the image processing in the recording unit 106.

  In step S412, the control unit 108 determines whether there is a change in the connection status of the communication path. If it is determined in step S412 that there is a change in the connection status of the communication path, the process proceeds to step S413. If it is determined in step S412 that there is no change in the connection status of the communication path, the process proceeds to step S416.

  In step S413, the control unit 108 assigns communication functions to the respective communication paths in accordance with the settings in the priority database 1061. In step S414, control unit 108 transmits the shared command to communication apparatus 200 using the communication path for command communication. Thereby, the content of the change made in the communication device 100 is also notified to the communication device 200. These concepts are the contents of setting the communication method individually for each function or negotiating the fail-safe method among the devices, and it is possible to specify which one is specified from which one. As described above. Here, an example in which the device having the function to be controlled makes a request according to the situation when it is controlled, but the other communication device is in what situation the function is present There are also cases where you are grasping. Further, the present invention is not limited to this, and a device having a high calculation speed may speculate or judge the communication status or the capability or status of the other device to specify the shared command. At this time, the function may be shared with another device in cooperation with the Internet.

  In step S415, the control unit 108 transmits the rec view image using the communication path for rec view transfer.

  In step S416, the control unit 108 determines whether a file transfer command has been received. If it is determined in step S416 that a file transfer command has been received, the process proceeds to step S417. If it is determined in step S416 that the file transfer command has not been received, the process proceeds to step S421.

  In step S417, the control unit 108 determines whether there is a change in the connection status of the communication path. If it is determined in step S418 that there is a change in the connection status of the communication path, the process proceeds to step S418. If it is determined in step S417 that there is no change in the connection status of the communication path, the process proceeds to step S420.

  In step S418, the control unit 108 assigns communication functions to the respective communication paths in accordance with the settings of the priority database 1061.

  In step S419, control unit 108 transmits a shared command to communication apparatus 200 using the communication path for command communication. The changed contents of the assignment of the communication function made in the communication device 100 are shared in the communication device 200 as well. These concepts are the contents of setting the communication method individually for each function or negotiating the fail-safe method among the devices, and it is possible to specify which one is specified from which one. As described above. Although the device that actually has the transmission function writes in an example that makes a request according to the optimal communication function and transmission situation according to the data, the other communication device is what kind of function is the situation There are also cases where you are grasping. In addition, a device having a high calculation speed may determine the communication status and the capability of the other device to specify a sharing command. At this time, the function may be shared with another device in cooperation with the Internet.

  In step S420, the control unit 108 transmits the image file specified by the file transfer command using the communication path for command communication.

  In step S421, the control unit 108 determines whether an instruction to end the camera has been issued. For example, when it is determined in the communication device 200 that a camera end instruction has been issued, it is determined in the communication device 100 that a camera end instruction has also been issued. If it is determined in step S421 that an instruction to end the camera has not been issued, the process returns to step S402. If it is determined in step S421 that a camera start instruction has been issued, the processing of FIGS. 7A and 7B ends.

  As described above, according to the present embodiment, in a communication system including communication devices having communication units corresponding to a plurality of communication paths, it is possible to assign different communication functions to each communication unit. Thereby, it is possible to perform communication according to the application such as reducing the communication load in a specific communication function.

  Further, according to the present embodiment, it is displayed which communication path is used for the current communication and what communication function is assigned to each communication path. This improves the convenience of the user.

  Further, according to the present embodiment, when the existing communication path is disconnected or a new communication path is connected, the allocation of the communication function is changed according to the content of the priority database. This enables quick resumption of communication when the communication path is suddenly disconnected. In addition, when a communication path having a higher priority than an existing communication path is being connected, high-quality communication can be performed using the communication path.

Further, according to the present embodiment, the live view backup image is transferred using a communication path different from the communication path for live view transfer. This makes it possible to display the live view without interruption.
In addition to the situation described above, for example, continuous shooting is performed with the camera as a situation that changes the situation and switches the communication during communication, so that file transfer should be given priority over live view, or power There is a situation where you want to turn off the power from WiFi and switch to Bluetooth communication with lower power or another power. In addition, there is a judgment unique to the camera side (the communication device 100) that it has not reached the limit of the processing capability of the camera and it is not in the case of communication. In such a case, it is better for the camera side to access the communication device 200 . Also, when sending a share command to the camera from the information terminal (communication device 200) side, the display of the information terminal is in the power saving state, so file transfer is necessary but a high-resolution through image is no longer required, for example If, in the middle of shooting, an image is transmitted and received via the network, it is conceivable that the shooting application has shifted to the background. In this case, it is better for the communication device 200 to access the communication device 100. As described above, according to the use scene and the user's desired operation, in fact, it is necessary to assume a situation where the devices requiring communication are switched, and the present invention covers that. In other words, while using an external service such as SNS, while connecting to an external service network or not, in a situation where a camera is connected for shooting and shooting is performed, the operation is performed while changing the communication connection destination. It is possible to designate the next connection before disconnecting the connection, or to specify the reconnection arrangement by the prior communication.

Hereinafter, modifications of the present embodiment will be described.
[Modification 1]
In the embodiment described above, the number of communication paths is three. On the other hand, the technique of the present embodiment can be applied even if the number of communication paths is two or four or more. Further, in the embodiment described above, the wired communication path and the wireless communication path are mixed. On the other hand, the technology of the present embodiment can be applied to only the wired communication path or only the wireless communication path. Furthermore, as long as there are multiple communication paths, the types may be the same.

  In the embodiment described above, an application example in direct communication between the communication apparatus 100 and the communication apparatus 200 is shown. Communication between the communication device 100 and the communication device 200 may be performed via an access point. An application example to such a communication system is shown in FIG. In the example of FIG. 8A, an example in which the second communication unit performs communication in WiFi communication (infrastructure mode) via the access point 400 is shown. Further, in the example of FIG. 8A, the communication device 100 and the communication device 200 are configured to be connectable to the network 500 via the access point 400. Furthermore, the communication device 100 and the communication device 200 are configured to be connectable to another communication device (imaging device) 600 via the network 500. When communication between devices can not be performed, it is effective to switch and connect each device to communication via a network or a base station (or satellite) because the distance, interference restriction, etc. are relatively reduced.

  In such a case, as shown in FIG. 8B, an icon 202g indicating the state of the communication path with the other communication device 600 may be displayed. The icon 202g is turned on when the communication path is connected, and turned off when the communication path is disconnected.

Further, similarly to the communication device 100, the operation of the communication device 600 may be configured to be controlled by the communication device 200. When such an operation of the communication device 600 is under the control of the communication device 200, an icon 202g indicating that may be displayed.
[Modification 2]
In the examples of FIGS. 6A and 6B and FIGS. 7A and 7B described above, the connection state of the communication path is determined in the communication apparatus that starts communication. On the other hand, the connection status of the communication path may be determined in one of the communication devices. In addition, when communication is performed via a communication path different from the content of the priority database, a warning may be issued.
[Other modifications]
The technology of the present embodiment is expected to be applied to the industrial field, the medical field, and the like. The technique of the present embodiment is applied to a communication system including a plurality of communication devices capable of communicating through a plurality of communication paths. Therefore, the communication device 100 may not be an imaging device such as a general camera, and may be a camera of a specific wavelength such as infrared, or an inspection device using radio waves such as voice, ultrasonic waves, and microwaves. . X-ray examinations and radiation measurement devices are also targets. Also, the communication device 200 may not be a smartphone. In this regard, the technology of the present embodiment is expected to be applied to various fields.

  Although the present invention has been described above based on the embodiment, the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications and applications are possible within the scope of the present invention. Also, in the explanation of each operation flowchart described above, the operation is described using “first”, “next”, etc. for convenience, but it means that it is essential to carry out the operation in this order. Absent.

  Also, each process according to the above-described embodiment can be stored as a program that can be executed by a CPU or the like as a computer. In addition, it can be stored and distributed in a storage medium of an external storage device such as a memory card, a magnetic disk, an optical disk, a semiconductor memory, and the like. Then, the CPU or the like reads the program stored in the storage medium of the external storage device, and the operation is controlled by the read program, whereby the above-described processing can be executed.

  Furthermore, the embodiments described above include inventions of various stages, and various inventions can be extracted by appropriate combinations of a plurality of disclosed constituent features. For example, even if some of the configuration requirements are removed from all the configuration requirements shown in the embodiment, the configuration requirements can be solved if the problems as described above can be solved and the effects as described above can be obtained. The configuration can also be extracted as an invention.

  100, 200, 600 communication apparatus, 102 imaging unit, 104, 208 communication unit, 106 recording unit, 108 control unit, 202 display unit, 204 touch panel, 206 operation unit, 210 recording unit, 212 control unit, 300 cable, 400 access Point 500 network 600 communication device 1041 2081 first communication unit 1042 2082 second communication unit 1043 2083 third communication unit 1061 2101 priority database 1081 imaging control unit 1082 image processing unit 1082 1083, 2123 communication function allocation unit, 1084, 2124 communication status determination unit, 1085, 2125 communication control unit, 2121 display control unit

Claims (6)

A communication device,
A communication unit that communicates with another communication device using a plurality of communication paths;
A communication function assignment unit that assigns a communication function to each communication path in the communication unit;
A communication status determination unit that determines a connection status for each communication path;
A communication control unit that controls communication for each communication route according to the assignment by the communication function assignment unit and the determination result of the communication status determination unit;
A priority database storing priorities of the plurality of communication paths for each of the communication functions;
A display control unit that causes a display unit to visibly display the communication status of each of the communication paths and the assigned communication function ;
Equipped with
The communication control unit performs the communication using the communication path with the highest priority corresponding to the communication function among the connected communication paths to which the communication function is assigned .   The display control unit according to claim 1, wherein the communication control unit is configured to display the communication route used for the current communication, the currently connected communication route, and the currently disconnected communication route as the communication status of the communication unit. Communication device.   The communication device according to claim 1, wherein the communication function allocation unit allocates the communication function according to a user's operation or automatically. A communication system configured to communicate between a first communication device and a second communication device, the communication system comprising:
The second communication device is
A communication unit that communicates with the first communication device using a plurality of communication paths;
A communication function assignment unit that assigns a communication function to each communication path in the communication unit;
A communication status determination unit that determines a connection status for each communication path;
A communication control unit that controls communication for each communication route according to the assignment by the communication function assignment unit and the determination result of the communication status determination unit;
A priority database storing priorities of the plurality of communication paths for each of the communication functions;
A display control unit for displaying to allow the display unit visually recognize the communication function and assigned a communication status of each of said communication path,
Equipped with
The communication control unit performs the communication using a communication path with the highest priority corresponding to the communication function among the connected communication paths to which the communication function is assigned . A communication method by a first communication device and a second communication device for performing communication using a plurality of communication paths, the communication method comprising:
Assigning a communication function to each communication path;
Determining the connection status for each of the communication paths;
From the priority database storing the priorities of the plurality of communication paths for each of the communication functions, the priority corresponding to the communication function among the connected communication paths to which the communication function is assigned is Performing the communication using the highest communication path;
And it is displayed to allow the display section visually recognize the communication function and assigned a communication status of each of said communication path,
A communication method comprising. A communication program by a computer of the second communication device in a communication system having a first communication device and a second communication device which communicate using a plurality of communication paths,
Assigning a communication function to each communication path;
Determining the connection status for each of the communication paths;
From the priority database storing the priorities of the plurality of communication paths for each of the communication functions, the priority corresponding to the communication function among the connected communication paths to which the communication function is assigned is Performing the communication using the highest communication path;
Displaying the communication status of each of the communication paths and the communication function assigned thereto on a display unit in a visible manner;
Communication program to make a computer execute.