JP2012253698A - Conference terminal device, conference system and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable communication relay with a satisfactory state in an ad hoc communication environment between conference terminal devices.SOLUTION: A conference terminal device 1 includes: a conference conductor determination unit 11 for acquiring communication state information with each of a plurality of devices capable of ad hoc communication to store the information into a communication state storage unit 12, and based on the communication state information, defining a conference conductor terminal; a display page indication unit 13 for transmitting a display page indication of a conference paper to a device serving as the conference conductor terminal; an indication reception unit 15 for receiving the display page indication from a terminal of an explaining person or the conference conductor terminal; an indication transfer unit 14 for transmitting the received display page indication to each of the plurality of conference terminal devices, participant terminals, when the self-device is the conference conductor terminal; and an indication page display processing unit 16 for displaying the indicated page of the conference paper on the basis of the display page indication.

Description

  The present invention relates to a conference terminal device that displays conference materials, a conference system including a plurality of the conference terminal devices, and a computer program.

  In order to share materials in a meeting, a conference system has been proposed in which materials are shared by a computer or a dedicated terminal device instead of paper material distribution.

  In the conference system, the same conference materials and documents are displayed on each of a plurality of conference terminal devices used by conference participants. The conference terminal device of the conference system mainly includes an explainer terminal used by a moderator and a material explainer, and a participant terminal used by each participant.

  The explainer terminal distributes various data such as meeting materials and documents to the participant terminals, instructions to specify the pages to be displayed such as meeting materials and documents (display page instructions), display of meeting materials on the projector, etc. Perform the process. The participant terminal displays the conference material specified by the explainer terminal. The explainer terminal and the participant terminal display the same page of the same material on the display screen of each conference terminal device.

  In the conference system, each conference terminal device is connected to ad hoc by wireless communication such as a wireless LAN, and exchanges data and display instructions. Therefore, in order for the conference system to operate stably, the communication quality between the explainer terminal and each participant terminal needs to be maintained high.

  However, in a situation where the communication environment is unstable such as a wireless LAN, communication between the explainer terminal and each participant terminal may become impossible. For example, as shown in FIG. 11, in the conference system, it is assumed that the conference terminal device A is an explainer terminal and the conference terminal devices B and C are participant terminals. A case where the conference terminal device A (explainer terminal) and the conference terminal device B (participant terminal) can communicate, and the conference terminal device A and the conference terminal device C (participant terminal) cannot communicate. It is. On the other hand, in the same communication situation, when the conference terminal device B becomes an explainer terminal, there can be a situation where both the conference terminal device A and the conference terminal device C can communicate with the conference terminal device B.

  As described above, there is a problem that the data sharing of the conference system functions or does not function depending on the communication status between the conference terminal devices.

  In order to solve such a problem, a method for preparing a terminal device (mediation terminal device) that mediates an instruction transmitted from the explainer terminal to the participant in addition to the explainer terminal and the participant terminal has been proposed. . A conventional method for finding a terminal device having a good communication state from a plurality of terminal devices has also been proposed.

International Publication No. 2008/149430 JP 2004-304391 A

  In a conventional method of mediating communication by preparing an intermediary terminal device, it is necessary to determine the intermediary terminal device in advance. However, there is no guarantee that the determined intermediary terminal device is in good communication with other terminal devices.

  In addition, even in the conventional method of finding a terminal device with a good communication state, it is necessary to determine a candidate to be an intermediary terminal device in advance. Furthermore, in a situation where there are many participants coming and going as in a conference, or a situation where there are many incoming and outgoing terminal devices that communicate data, it is necessary to reset the next mediating terminal device each time the mediating terminal device no longer exists There was a problem.

  An object of the present invention is to use a conference terminal device with good communication sensitivity as a relay device between an explainer terminal and a participant terminal from a plurality of conference terminal devices without placing an operational burden on the conference participants. It is to provide a conference terminal device that can perform the process of determining. Another object of the present invention is to provide a conference system including a plurality of the above-described conference terminal devices. Another object of the present invention is to provide a computer program for causing a computer to function as the conference terminal device.

  The conference terminal device disclosed as one aspect of the present invention is configured to 1) communicate with each of a plurality of conference terminal devices capable of ad hoc communication at a fixed place, and communication status information with the conference terminal device And, based on the acquired communication state information, a conference conductor determination unit that determines the conference terminal device having the best communication state as a conference conductor terminal, and 2) a page of the conference material displayed on the own device. A display page instruction unit that generates a specified display page instruction and transmits it to the conference terminal device determined as the conference conductor terminal; and 3) the plurality of conferences when the own device is determined as the conference conductor terminal. If the display page instruction is received from one of the terminal devices for use, or if the own device is not determined as the conference conductor terminal, the conference conductor terminal determines An instruction receiving unit that receives the display page instruction from the terminal device for use, and 4) when the own device is determined to be the conference conductor terminal, the received display page instruction is transmitted to each of the plurality of conference terminal devices. And 5) an instruction page display processing unit for displaying a designated page of the conference material based on the display page instruction received by the own apparatus.

  According to the conference terminal device disclosed as one aspect of the present invention, when determining a conference terminal device (conference conductor terminal) that relays an instruction from the explainer terminal to the participant terminal, Since the conference terminal device having good communication sensitivity is automatically determined from the plurality of conference terminal devices to be used, the participant can save time and labor for determining the relay device.

It is a figure which shows the block structural example in the example of 1 form of the terminal device for meetings. It is a figure which shows the example of communication status information. It is a figure which shows the processing flow of a conference conductor determination process. It is a figure which shows the example of the communication status table which meeting terminal device AE hold | maintains. It is a figure which shows the function example of each terminal device for a meeting of a meeting system. It is a figure which shows the processing flow of the transmission process of a display page instruction | indication. It is a figure which shows the processing flow of the transmission process of a display page instruction | indication. It is a figure which shows the processing flow of the display process by a display page instruction | indication. It is a figure which shows the processing flow of the redetermination process of a conference conductor terminal. It is a figure which shows the function example of each terminal device for a meeting of the meeting system after the re-decision of a meeting conductor terminal. It is a figure explaining the problem of the conventional conference system which this inventor considered.

  Hereinafter, a conference system including a conference terminal device and a plurality of conference terminal devices disclosed as one embodiment of the present invention will be described.

  The disclosed conference terminal device is a device that displays data such as conference materials and documents on its own display screen or a connected display device, and is configured to be portable.

  The conference system includes a plurality of conference terminal devices used by conference participants who gather at a specific location.

  In addition, each conference terminal device has an ad hoc wireless communication function, and the conference terminal device becomes an access point (AP) without using an access point or a router, and wireless data communication with other conference terminal devices. It can be performed. For example, the conference terminal device has a communication program called Wi-Fi Direct, and the conference terminal devices perform peer-to-peer data communication. Wi-Fi Direct operates based on IEEE 802.11. The conference terminal device connects to another conference terminal device in the same manner as a normal access point provides a connection with a client.

  A plurality of conference terminal devices constituting the conference system function as an explainer terminal, a participant terminal, or a conference conductor terminal.

  The explainer terminal is a device for designating conference materials and display pages to be transferred to other conference terminal devices participating in the conference system. The participant terminal becomes the presenter terminal in accordance with the transition of the presenter as the meeting progresses. The explainer terminal transmits data to be displayed on each conference terminal device such as conference materials and documents (hereinafter simply referred to as conference materials), and an instruction specifying the page of the conference material to be displayed (hereinafter referred to as display page instruction). .

  Note that the conference material may be provided to the conference terminal device in advance by various media or communication.

  The participant terminal is a device that receives the conference material and display page instructions sent from the explainer terminal, directly or via the conference conductor terminal, and displays the page of the conference material specified by the display page instruction. is there.

  The conference conductor terminal is a device that receives a display page instruction from the explainer terminal and transmits the received display page instruction to other participant terminals. The conference conductor terminal is one or more conference terminal devices specified from a plurality of conference terminal devices participating in the conference system, and also has a function of an explainer terminal or a participant terminal.

  In the disclosed conference system, the conference conductor terminal is a conference terminal that can communicate with all the conference terminal devices (participant terminals) constituting the conference system and has the best communication state with other conference terminal devices. A device is selected.

  Further, when the presenter changes to another participant, the conference terminal device of the replaced participant becomes the presenter terminal. Then, the new explainer terminal transmits conference materials, display page instructions, and the like to the other participant terminals. At this time, the conference terminal device which has been the presenter terminal so far becomes the participant terminal.

  FIG. 1 is a diagram illustrating a block configuration example in one example of a conference terminal device.

  As described above, the conference terminal device 1 participating in the conference system can function as any conference terminal device such as an explainer terminal, a conference conductor terminal, or a participant terminal.

  The conference terminal device 1 of the conference system includes a conference conductor determination unit 11, a communication state storage unit 12, a display page instruction unit 13, an instruction transmission unit 14, an instruction reception unit 15, and an instruction page display processing unit 16.

  The conference conductor determination unit 11 determines a conference conductor terminal based on communication state information indicating a communication state with each conference terminal device participating in the conference system. Details of the conference conductor determination process will be described later.

  The communication state storage unit 12 stores communication state information collected by the conference conductor determination unit 11 from other conference terminal devices. The communication state information is, for example, an RSSI (Received Signal Strength Indicator) value indicating a communication result with another conference terminal device and a radio wave intensity state at that time.

  A data table in which communication state information (RSSI value in communication between devices) is recorded is stored in the communication state storage unit 12.

  The display page instruction unit 13 is activated when the own device is an explainer terminal, or based on the display page of the conference material displayed on the display screen (not shown in FIG. 1) of the own device or the explainer. A display page instruction is generated by the operation of the input device of the device itself, and the generated display page instruction is transmitted to the conference conductor terminal using the wireless communication function.

  The display page instruction is an instruction for displaying the page of the conference material displayed on the screen of the explainer terminal on the other participant terminals, and includes specification of a page to be displayed of the conference material and a request for specifying processing.

  The instruction transmission unit 14 is activated when the device itself is a conference conductor terminal. When the device itself is a conference conductor terminal, the instruction transmission unit 14 transmits the display page instruction received from the explainer terminal to the participant terminal.

  The instruction receiving unit 15 is activated when the own device is a conference conductor terminal or a participant terminal. When the device itself is a conference conductor terminal, the instruction receiving unit 15 receives a display page instruction from the explainer terminal using the wireless communication function. When the own device is a participant terminal, the instruction receiving unit 15 receives a display page instruction from the conference conductor terminal using the wireless communication function.

  The instruction page display processing unit 16 is activated when the own device is a conference conductor terminal or a participant terminal. When the own device is a conference conductor terminal, the designated page of the conference material is displayed on the display screen of the own device based on the display page instruction received from the explainer terminal. When the own device is a participant terminal, the designated page of the conference material is displayed on the display screen of the own device based on the display page instruction received from the conference conductor terminal.

  FIG. 2 is a diagram illustrating an example of communication state information.

  As described above, the communication status information (RSSI value) collected from each conference terminal device of the conference system is recorded in the communication status table. In the example shown in FIG. 2, the RSSI value at the time of communication between the conference terminal device A and the conference terminal device B is 128, the RSSI value at the time of communication between the conference terminal device B and the conference terminal device C is 64, This indicates that the connection between the terminal device A for conference and the terminal device C for conference could not be established.

  Next, the conference conductor determination process executed by the conference conductor determination unit 11 will be described in more detail.

  The conference conductor determination unit 11 determines the conference conductor terminal by the following method.

  Step S_A: In each conference terminal device of the conference system, the conference conductor determination unit 11 starts processing. For example, the conference conductor determination unit 11 can simultaneously press a conference conductor determination process start button provided on each conference terminal device by a conference participant (user) or select a menu for starting the conference conductor determination process. To start the process.

  Step S_B: The conference conductor determination unit 11 of each conference terminal device performs communication between the conference terminal devices with the same connection conditions (SSID, encryption method, password) by the wireless communication function, and acquires the RSSI value.

  Step S_C: The conference conductor determination unit 11 of each conference terminal device exchanges the communication result with the other conference terminal device and its RSSI value, and records the exchanged RSSI value in the communication state table.

  Step S_D: The conference conductor determining unit 11 of each conference terminal device refers to the communication state table, selects one conference terminal device corresponding to the conference conductor terminal determination rule, and determines the conference conductor terminal. .

  The decision rule is a rule for selecting an optimum communication sensitivity from all conference terminal devices participating in the conference system. The determination rule is, for example, to select a conference terminal device that can communicate with all the conference terminal devices of the conference system and has the highest average RSSI value of communication with other conference terminal devices. For example, a conference terminal device that can communicate with all conference terminal devices and has the lowest variance of RSSI values is selected.

  Step S_E: The conference conductor determination unit 11 of each conference terminal device checks whether the determined conference conductor terminal is its own device. If the device itself is a conference conductor terminal, the conference conductor determination unit 11 notifies other conference terminal devices that it has become a conference conductor terminal. If the own device is not a conference conductor terminal, the conference conductor determining unit 11 receives a notification that the conference conductor terminal has become a conference conductor terminal from another conference terminal device, and determines the result of determination by the own device (which conference terminal device is the conference conductor terminal). Check if it is a terminal.

  If communication between the presenter terminal and the conference conductor terminal becomes impossible due to changes in the communication environment or the leaving of conference participants using the conference conductor terminal, the next conference conductor terminal is determined as follows. To do.

  The conference conductor determination unit 11 of the presenter terminal refers to the communication state table when communication with the conference conductor terminal is not possible, and can communicate with all conference terminal devices. The conference terminal device corresponding to the terminal determination rule (the average RSSI value is the highest or the RSSI value variance is the lowest) is selected and designated as the conference conductor terminal. Then, the conference conductor determination unit 11 of the explainer terminal notifies the designated conference terminal device that the conference conductor terminal has been designated.

  The conference conductor determination unit 11 of the conference terminal device that has received the specified notification from the explainer terminal notifies other conference terminal devices that it has become a conference conductor terminal.

  When the conference conductor determination unit 11 of the presenter terminal refers to the communication state table, if there is no conference terminal corresponding to the determination rule of the conference conductor determination process (the conference terminal that can communicate with all the conference terminal devices If the device does not exist, a message prompting re-execution of the conference conductor determination processing (the processing from step S_A to S_E) is displayed on the display screen of the own device. By this message display, the presenter (user of the presenter terminal) prompts the conference participant (user of the participant terminal) to start the conference conductor determination process. When the participants simultaneously operate the start of the conference conductor determination process, the conference conductor determination process is executed again, and a new conference conductor terminal is determined.

  As described above, since a conference participant can automatically determine a conference conductor terminal and set it in all conference terminal devices only by the start operation of the conference conductor determination process, it takes time to set up the conference conductor terminal. It can be omitted.

  Next, an embodiment of the disclosed conference system will be described.

  In this embodiment, it is assumed that the conference material is provided in advance to each conference terminal device via a data storage medium or a network.

  After meeting participants gather with each conference terminal device, press the button on the conference terminal device to notify the start of the conference, or the button on the conference terminal device to start the conference conductor determination process Perform operations such as pressing. As a result, the conference conductor determination process is started in each conference terminal device, the conference conductor terminal is determined, and the conference can proceed.

  FIG. 3 is a diagram illustrating a process flow of the conference conductor determination process.

  The conference conductor determination unit 11 of each conference terminal device performs the processes of steps S1 to S10 shown in FIG.

  The conference conductor determination unit 11 communicates with other conference terminal devices having the same connection conditions (step S1). At this time, a certain conference terminal device temporarily becomes a temporary access point (AP) and communicates with all the conference terminal devices having the same connection conditions as the own device. When communication with all the conference terminal devices is finished, the role of the temporary AP is finished, and then another conference terminal device becomes the temporary AP. When the conference terminal device serving as the temporary AP overlaps, the conference terminal device that has previously declared to be the temporary AP is given priority.

  When the conference terminal devices communicate with each other, the conference conductor determination unit 11 acquires an RSSI value at the time of communication with another conference terminal device with which the own device communicated as an AP (step S2).

  The conference conductor determination unit 11 determines whether there is another unconnected conference terminal device (step S3). If there is another unconnected conference terminal device (Y in step S3), the process proceeds to step S1. Returning, if there is no other unconnected conference terminal device (N in step S3), the process proceeds to step S4.

  The conference conductor determination unit 11 generates a communication state table, records the RSSI value acquired during communication between the own device and each conference terminal device in the communication state table, and stores it in the communication state storage unit 12 (step S4). .

  The conference conductor determination unit 11 again becomes a temporary AP, and exchanges a communication state table for recording RSSI values of communication with each conference terminal device collected by the own device with other conference terminal devices (first time). Exchange), the communication state table of the other conference terminal device acquired by the exchange is stored in the communication state storage unit 12 (step S5). After completing the exchange of the communication state table with all the conference terminal devices, the role of the temporary AP is finished, and the next conference terminal device becomes the temporary AP. Similarly, the conference terminal device that has become the temporary AP exchanges the communication status table with other conference terminal devices.

  Subsequently, the conference terminal device becomes a temporary AP, and the conference conductor determination unit 11 again exchanges the communication state table collected by the own device with another conference terminal device (second time), and is obtained by the exchange. The communication state table of another conference terminal device is stored in the communication state storage unit 12 (step S6).

  The reason for exchanging the communication state table twice is that it is not possible to confirm the existence of a conference terminal device that cannot be communicated with by itself. Once the communication status table (RSSI value) has been exchanged between all the conference terminal devices, even if there is a conference terminal device that cannot be communicated with, the communication obtained from other conference terminal devices This is because, based on the status table, it is possible to know the existence of a conference terminal device that the own device cannot communicate with.

  By performing the processes of steps S1 to S6 on all the conference terminal devices, the communication status table (the RSSI value of the RSSI value) of all the conference participants (the range in which any conference terminal device can communicate) Table).

  Subsequently, the conference conductor determination unit 11 analyzes the communication state table held in the communication state storage unit 12 and selects a conference terminal device corresponding to the determination rule for conference conductor determination. As a decision rule, a rule that communication with all conference terminal devices is possible and the average RSSI value is the highest is used. Furthermore, the conference conductor determination unit 11 of the conference terminal device that has determined that the device is a conference conductor terminal declares that the device is a conference conductor terminal to other conference terminal devices (step S7). ).

  Here, since all the conference terminal devices share the same communication state table, the same conference terminal device is extracted as the conference conductor terminal.

  Subsequently, it is checked whether there is another conference terminal device that declares the conference conductor terminal (sends notification that it is a conference conductor terminal) (step S8).

  If there is another conference terminal device that declares the conference conductor terminal (Y in step S8), the communication state tables are exchanged again between the declared conference terminal devices, and it is determined which one will be the conference conductor terminal ( Step S9). The decision rule for the conference conductor terminal is the same as the decision rule used in the process of step S7.

  Then, the conference conductor determination unit 11 of the conference terminal device that has become the conference conductor terminal notifies the other conference terminal devices that it has become the conference conductor terminal, and distributes the communication state table (step S10).

  If there is no other conference terminal device declaring the conference conductor terminal (N in step S8), the process is terminated.

  In the embodiment, it is assumed that the conference terminal devices A to E participate in the conference. The conference conductor determination process is started in each conference terminal device, and each of the conference terminal devices A to E sequentially becomes a temporary AP, and communicates with all the conference terminal devices having the same connection conditions as the own device.

  For example, it is assumed that the conference terminal device A communicates with the conference terminal devices B, D, and E to acquire the RSSI value, but cannot communicate with the conference terminal device C. Therefore, the conference terminal device A cannot detect the presence of the conference terminal device C. Similarly, since the conference terminal device C could not communicate with the conference terminal device A, its presence cannot be detected. On the other hand, it is assumed that the conference terminal devices B, D, and E can communicate with all the conference terminal devices.

  The conference terminal devices A and C exchange the communication state table with the conference terminal devices B, D, and E, and the presence of the conference terminal devices C and A that could not be detected, and the connection between the two cannot be established. You can know that it was.

  FIG. 4 is a diagram illustrating an example of a communication state table held by the conference terminal devices A to E.

  Through the processing in steps S5 and S6 of the processing flow shown in FIG. 3, the communication state between the devices is recorded for all conference terminal devices participating in the conference.

  When the communication state table shown in FIG. 4 is referred to, the conference terminal device B that can communicate with all the conference terminal devices and has the highest RSSI value (60.5) is determined as the conference conductor terminal. . After this conference conductor determination process, the conference is started.

  FIG. 5 is a diagram illustrating a function example of each conference terminal device of the conference system.

  When the conference terminal device A is an explainer terminal, the conference terminal device A transmits the generated display page instruction to the conference terminal device B which is a conference conductor terminal. The conference terminal device B transmits the received display page instruction to the conference terminal devices C, D, and E of the participant terminals.

  FIG. 6 is a diagram illustrating a processing flow of a display page instruction transmission process.

  The display page instruction unit 13 of the presenter terminal (conference terminal device A) specifies the page of the conference material displayed on the display screen of the own device and generates a display page instruction that specifies the specified page as the display page. (Step S20). The display page instruction unit 13 transmits the generated display page instruction to the conference conductor terminal (conference terminal device B) (step S21).

  The processes in steps S20 to S21 are executed each time the displayed conference material page is changed.

  FIG. 7 is a diagram illustrating a processing flow of a display page instruction transmission process.

  The instruction receiving unit 15 of the conference conductor terminal (conference terminal apparatus B) receives a display page instruction from the explainer terminal (conference terminal apparatus A) (step S30). The instruction transmission unit 14 transmits the received display page instruction to all the participant terminals (conference terminal devices C, D, E) (step S31). Further, the instruction page display processing unit 16 displays the specified page on the display screen of the own device based on the received display page instruction (step S32).

  FIG. 8 is a diagram showing a processing flow of display processing by a display page instruction.

  The instruction receiving unit 15 of the participant terminal (conference terminal devices C, D, E) receives a display page instruction from the conference conductor terminal (conference terminal device B) (step S40). The instruction page display processing unit 16 displays the specified page on the display screen of the own device based on the received display page instruction (step S41).

  When the conference conductor terminal disappears while the conference is in progress, for example, when a participant who has the conference terminal device that has been the conference conductor terminal leaves, the process of re-deciding the conference conductor terminal is performed. Is called.

  FIG. 9 is a diagram illustrating a process flow of the re-determination process of the conference conductor terminal.

  The conference conductor determination unit 11 of the presenter terminal (conference terminal device A) checks whether the communication with the conference conductor terminal (conference terminal device B) is successful (step S50), and only when the communication is not successful. (N in step S50), referring to the communication state table of the own device, the conference terminal device that satisfies the decision rule next to the conference conductor terminal (conference terminal device B) that could not communicate as the conference conductor terminal Extract (step S51). In the communication state table shown in FIG. 4, the conference conductor determination unit 11 of the explainer terminal extracts the conference terminal device E having the next highest average RSSI value.

  When the conference conductor determination unit 11 of the presenter terminal can extract the conference terminal device corresponding to the conference conductor terminal based on the communication state table (Y in step S52), the conference conductor determination unit 11 adds the conference terminal device to the extracted conference terminal device. The designated notification is transmitted to the conference conductor terminal (step S53). Upon receiving this designated notification, the conference conductor determination unit 11 of the conference terminal device notifies all the conference terminal devices (conference terminal devices C and D) of the notification that the own device is a conference conductor terminal (step S10). S54).

  On the other hand, when the conference terminal device corresponding to the conference conductor terminal cannot be extracted based on the communication state table (N in step S52), the conference conductor determination unit 11 of the explainer terminal determines the conference conductor determination. A message for requesting a start operation is displayed on the display screen of the device itself (step S55). As a result, the presenter is re-executed to determine a new conference conductor terminal in order to prompt the participant to start the conference conductor determination process.

  FIG. 10 is a diagram illustrating a functional example of each conference terminal device of the conference system after re-determination of the conference conductor terminal.

  After the conference terminal device B leaves, the conference terminal device A transmits a display page instruction to the conference terminal device E, which is a new conference conductor terminal. The conference terminal device E transmits the received display page instruction to the conference terminal devices C and D of the participant terminals.

  The conference terminal device 1 of the conference system includes a CPU that executes processing, a ROM that stores programs, a RAM that stores programs and conference materials, an I / O that connects an LCD or electronic paper that displays conference materials, and the like It can be implemented by a computer or dedicated hardware.

  Each processing unit of the conference terminal device 1 can also be implemented by a program executable by a computer. In this case, a program that describes the processing contents of the functions that the conference conductor determination unit 11, the display page instruction unit 13, the instruction transmission unit 14, the instruction reception unit 15, and the instruction page display processing unit 16 of the conference terminal device 1 should have. Is provided. When the provided program is executed by the computer, the function of the processing unit of the conference terminal device 1 is realized on the computer.

  The computer can also read a program directly from a portable recording medium and execute processing according to the program. Furthermore, the program executed by the computer can be recorded on a computer-readable recording medium.

  As described above, according to the disclosed conference terminal device, communication status information between the devices is collected among a plurality of conference terminal devices gathered in a certain place, and the conference terminal with the highest communication sensitivity is collected. The process of determining the device as the conference conductor terminal can be executed semi-automatically. Therefore, it is possible to set a favorable communication environment during a conference by using a conference terminal device that is optimal for relaying communication without imposing a burden on the user.

  Further, according to the disclosed conference terminal device, when the communication environment changes, the conference terminal device having the next best communication sensitivity can be determined as the conference conductor terminal, and communication can be continued. Therefore, even if the communication during the conference is an ad hoc environment, it is possible to maintain a good communication environment corresponding to a change in the communication state.

  With the above operation, the conference participants can receive the display page instruction from the explainer terminal more reliably, and can concentrate on the conference without worrying about the communication environment.

DESCRIPTION OF SYMBOLS 1 Conference terminal device 11 Conference conductor determination part 12 Communication state memory | storage part 13 Display page instruction | indication part 14 Instruction transmission part 15 Instruction reception part 16 Instruction page display process part

Claims (7)

A terminal device for conferences that displays conference materials,
Communicate with each of a plurality of conference terminal devices capable of ad hoc communication at a certain location, acquire communication status information with the conference terminal device, and based on the acquired communication status information, communicate status A conference conductor determination unit for determining the best conference terminal device as a conference conductor terminal;
A display page instruction unit that generates a display page instruction that specifies a page of the conference material displayed on the own device and transmits the display page instruction to the conference terminal device determined as the conference conductor terminal;
When the own device is determined as the conference conductor terminal, the display page instruction is received from one of the plurality of conference terminal devices, or when the own device is not determined as the conference conductor terminal, An instruction receiving unit for receiving the display page instruction from the conference terminal device determined as the conference conductor terminal;
An instruction transmission unit for transmitting the received display page instruction to each of the plurality of conference terminal devices when the own device is determined to be the conference conductor terminal;
An instruction page display processing unit that displays a designated page of the conference material based on the display page instruction received by the own device. When the display page instruction unit of the own device fails to communicate with the conference conductor terminal, the conference conductor determination unit confers a conference terminal device with the second best communication status based on the communication status information. The conference terminal device according to claim 1, wherein the conference terminal device is determined as a conductor terminal. 2. The conference conductor determination unit starts processing according to a specific signal, and acquires a value indicating a communication strength state with each of the plurality of conference terminal devices as the communication state. Alternatively, the conference terminal device according to claim 2. The conference conductor determining unit determines, as the conference conductor terminal, a conference terminal device that can communicate with the plurality of conference terminal devices and has the highest average value indicating the communication strength state. The conference terminal device according to claim 3. The conference conductor determining unit determines, as the conference conductor terminal, a conference terminal device that is communicable with the plurality of conference terminal devices and has a minimum variance value indicating a state of the communication strength. The conference terminal device according to claim 3. A conference system comprising a plurality of conference terminal devices according to any one of claims 1 to 5. Computer
Communicate with each of a plurality of conference terminal devices capable of ad hoc communication at a certain location, acquire communication status information with the conference terminal device, and based on the acquired communication status information, communicate status A conference conductor determination unit for determining the best conference terminal device as a conference conductor terminal;
A display page instruction unit that generates a display page instruction that specifies a page of the conference material displayed on the own device and transmits the display page instruction to the conference terminal device determined as the conference conductor terminal;
When the own device is determined as the conference conductor terminal, the display page instruction is received from one of the plurality of conference terminal devices, or when the own device is not determined as the conference conductor terminal, An instruction receiving unit for receiving the display page instruction from the conference terminal device determined as the conference conductor terminal;
An instruction transmission unit for transmitting the received display page instruction to each of the plurality of conference terminal devices when the own device is determined to be the conference conductor terminal;
A computer program for functioning as a conference terminal device, comprising: an instruction page display processing unit that displays a designated page of the conference material based on the display page instruction received by the own device.