JP2000349913A - Method for generating utility history in video conference system and the video conference system with utility history generating function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for generating a utility history in a video conference system that can reflect cross-reference between reservation information and call connection information to a utility history and to provide the video conference system. SOLUTION: A call connection information collection section 21 periodically collects call connection information of a video conference system, and a call connection information storage section 31 stores the collected information. When collection is disabled due to some fault, the storage section 31 stores finally collected call connection information number and the next call connection information number is collected at a next collection period. Furthermore, a reservation information collection section 22 collects reservation information from a reservation controller 7, and a reservation information storage section 32 stores the collected information. When the information cannot be collected due to some fault, the finally collected reservation information number is memorized sand the next reservation information is collected at the next collection period. A utility history generating section 23 periodically read the call connection information storage section 31 and the reservation information storage section 32 and cross-reference them, and stores the result to a utility history storage section 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating a usage history in a video conference system, and a video conference system with a usage history creation function for implementing the method.

[0002]

2. Description of the Related Art A system for performing a multimedia conference by connecting not only audio but also video and data to a terminal between remote points via a network is conventionally known as, for example, a video conference system. . Conventionally, the use history of this video conference system includes a case where an actual connection history is edited based on call connection information, and a case where a reservation use state is edited based on a reservation schedule.

An example of a video conference system capable of editing an actual connection history based on call connection information is described in Japanese Patent Application Laid-Open No. 5-236132. The video conference system described in this publication discloses that, in order to avoid complicated call connection control that occurs when an immediate call and a reserved call coexist, call connection information of an immediate call and call connection information of a reserved call are combined. , A system that manages with a unified management table.

In this video conference system, a plurality of terminals for video conference are accommodated on an exchange connected via a trunk line, and each exchange has a central processing unit mounted in each of the exchanges. The system includes a call connection control unit that implements a video conference service, a call connection information management unit that manages call connection information, and a reservation information management unit that manages reservation information.

[0005] Regardless of whether an immediate video conference or a reserved video conference is to be performed, a required network resource is captured by a call connection information management unit at the time of a call connection request, and the network resource information is unified. , The call connection control unit connects the video conference.

When a video conference is connected, information such as a calling terminal, a participating terminal, and a connection start time is written by a call connection information management unit. At the time of termination, resources in the network are similarly released by the call connection information management unit, and the end time or hold time information is written in the call connection information. In this way, since the call connection information is created in connection units regardless of the types of the immediate call and the reserved call, the actual call connection history can be edited by collecting the call connection information.

[0007]

However, this prior art has the following problems. The first problem is that the actual call connection information and the reservation information cannot be associated with each other. For example, even if a service registered as a service of 60 minutes on the reservation information actually ends in 10 minutes, That is not reflected in the usage history. This is because the conventional electronic conference system does not consider the association between the call connection information and the reservation information at all. Second
The problem is that even if the call connection information is associated with the reservation information, the connection with some participating terminals fails,
This means that if a participating terminal is added during the execution of the reservation service, the association cannot be made. The reason is that if only the reservation information and all the call connection information match, as described above, if the contents of the reservation information and some of the call connection information are different, Because it will come off. The third problem is that, even when the collection of the call connection information and the reservation information has failed, the call connection information and the reservation information cannot be associated with each other, as in the second problem. .

[0008] As described above, in the conventional usage history generation method of the video conference system, no association between the call connection information and the reservation information is taken into account, so that connection with some participating terminals fails, When a new participant terminal is added on the way or when the collection of either the call connection information or the reservation information fails, they cannot be reflected in the use history.

An object of the present invention is to provide a method of creating a usage history in a video conference system capable of reflecting the correspondence between reservation information and call connection information in a usage history, and a television with a usage history creation function for implementing the method. To provide a conference system.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a method of creating a use history in a video conference system according to the present invention comprises an exchange, a plurality of video conference terminals accommodated in the exchange, and a television. A reservation device for accepting a conference reservation and performing reservation control; a data processing device for performing call connection control for implementing a video conference between terminals, and collecting and managing call connection information and reservation information; This is implemented by a video conference system having a storage device that stores the call connection information and the reservation information collected by the processing device.

In the method of creating a usage history in the video conference system according to the present invention, when one of the call connection information and the reservation information is used as the first information and the other is used as the second information, the stored first and second information are stored. Read processing for reading out the second information, search processing for searching for the corresponding second information using the first information as a key, first information used as the key, and search processing for the second information It includes an associating process of associating the result with the result, and a writing process of storing information obtained by the associating process as use history information.

[0012] The above-mentioned associating process includes the first information collected during a predetermined period and the second information collected during the predetermined period.
Is executed by repeatedly associating the information with each other in each usage history creation cycle. If the collection of the first information or the second information fails and the associating process cannot be performed,
After the cycle in which the failure has occurred, the process includes executing the association process in each usage history creation cycle.

A video conference system with a use history creating function according to the present invention comprises an exchange, a plurality of terminals for video conference accommodated in the exchange, a reservation device for receiving reservation of the video conference and performing reservation control, and a terminal. A data processing device for collecting and managing call connection information and reservation information, and a storage device for storing the call connection information and reservation information collected by the data processing device. A data conferencing system having a usage history creating function, wherein the data processing device collects call connection information after the call connection information number already collected for each switch at a predetermined call connection information collection cycle, and If the collection of the connection information is successful, the call connection information is stored in the storage device. A call connection information collection unit that collects call connection information from uncollected exchanges and restarts collection at the next call connection information collection cycle when there is no next uncollected exchange. The reservation information after the reserved reservation information number is collected from the reservation control device, and if the reservation information collection is successful, the collected reservation information is stored in the storage device. If the reservation information collection is not successful, the next A reservation information collection unit that restarts collection in a reservation information collection cycle of the same, and searches for call connection information collected in the same predetermined period by using the reservation information collected in a predetermined period as a key for each usage history creation period. In the case where the reservation information and the search result of the call connection information are associated with each other and stored in the storage device as use history information, and the collection processing of the reservation information or the call connection information fails and the association processing cannot be performed. In Use history generation for performing the process of creating the use history information by executing the associating process for each use history creation period after the failure period, and the process of storing the call connection information of the immediate call in the storage device. And a part.

Further, the video conference system with a use history creating function according to the present invention comprises: a first use history output unit for reading and outputting use history information stored in a storage device;
An input device that externally inputs a search condition of usage history information to be output and outputs the search condition to the first usage history output unit;
May be provided with an output device for displaying the usage history information output from the usage history output unit. Or, a recording medium that records usage history information, and an input device that externally inputs an output condition of usage history information to be recorded on the recording medium,
The output condition is input from an input device, the usage history information stored in the storage device is searched according to the output condition, and the usage history information is read out one by one.
A second usage history output unit that converts the data into a format and outputs the converted data to the recording medium can be provided.

[0015]

The use history creation method and the use history creation function in the video conference system of the present invention have the following functions. (1) Call connection information and reservation information in the video conference system are associated with each other, and the associated result information is stored as a use history. (2) Collection of call connection information and reservation information is performed periodically, and if collection fails due to a device failure or the like, collection is restarted in the next cycle. (3) The use history is periodically created, and when the collection of the call connection information and the reservation information fails due to a device failure or the like and the association cannot be performed, the association process is periodically repeated thereafter. (4) Search for usage history information according to the output conditions specified by the input device.

As described above, according to the present invention, a usage history of a video conference implemented in a video conference system is created by associating the call connection information with the reservation information, and the created usage history is arbitrarily output. A technical configuration capable of outputting according to conditions is provided.

[0017]

FIG. 1 is a block diagram showing a configuration of a first embodiment of a video conference system. This video conference system has an exchange 5, a terminal 6, and a use history creation device of the present invention. The usage history creation device includes a data processing device 2 operated by program control, a storage device 3 for storing information, a reservation terminal 8, a reservation control device 7, an input device 1 such as a keyboard, and an output device 4 such as a display. .

The storage device 3 includes a call connection information storage unit 31,
A reservation information storage unit 32 and a use history storage unit 33 are provided. The call connection information storage unit 31 stores the call connection information of the video conference collected by the call connection information collection unit 21 described later for each connection regardless of the immediate service or the reservation service. The content of the call connection information includes "host terminal",
There are “participating terminal”, “start time”, “hold time”, “service type”, “immediate / reservation type”, and the like.

The reservation information storage section 32 stores reservation information of the video conference collected by the reservation information collection section 22 described later for each service. As the contents of the reservation information,
There are "reserver", "host terminal", "participating terminal", "service contents", "reservation start time", "reservation end time", "comment" and the like.

The use history storage unit 33 stores, as use history information, information in which call connection information and reservation information of a video conference are associated with each service. The contents of the usage history information include the contents of the call connection information and the contents of the reservation information, and the result of associating the contents. The contents of the usage history storage unit 33 are displayed on the output device 4 according to an instruction from the input device 1.

The data processing device 2 includes a call connection information collection unit 2
1, a reservation information collection unit 22, a use history creation unit 23,
And a use history output unit 24. The call connection information collection unit 21 periodically collects call connection information by inquiring of the exchange 5 at a predetermined cycle. The call connection information is information related to a video conference call made by a plurality of video conference terminals 6 accommodated in the exchange 5, and is generated by the exchange. If the call connection information cannot be collected due to some failure, the call connection information collection unit 21 remembers the collected last call connection information number, and starts the next collection cycle from the number next to the last call connection information number. Collect.

The reservation information collection section 22 periodically collects reservation information of a video conference by inquiring of the reservation control device 7. The reservation information is registered in the reservation control device 7 from the reservation terminal 8 and managed by the reservation control device 7. If the collection cannot be performed due to some failure, the reservation information collection unit 22 remembers the last collected reservation information number and performs collection in the next collection cycle from the number next to the last reservation information number.

The use history creating unit 23 periodically stores the call connection information storage unit 31 and the reservation information storage unit 32 in the storage device 3.
And the read call connection information and the reservation information are associated with each other using the “calling terminal” and the “start time” as keys (for example, using the contents of the calling terminal field of the reservation information as a key, Is searched, and when the corresponding call connection information exists, the reservation information and the call connection information are regarded as “corresponding”, and when the corresponding call connection information does not exist,
“There is no corresponding call connection information”), and the result is stored in the use history storage unit 3 in the storage device 3.
At this time, all call connection information and reservation information for a certain period are read out, and the association is repeated periodically (for each use history generation period), so that the collection failure of the call connection information collection unit 21 and the reservation information collection unit 22 is prevented. deal with. For example, even when the call connection information collecting unit 21 fails to collect the call connection information, there is no call connection information corresponding to the reservation information at the time of the previous period, and the association result is “no corresponding service”.
If the call connection information is normally collected in the next usage history generation cycle, the association is correctly performed in the next cycle. The usage history output unit 24 searches the usage history storage unit 33 in the storage device 3 according to the output condition input from the input device 1, and outputs the search result to the output device 4.

Next, the operation of this embodiment will be described. FIG.
5 is a flowchart describing the operation of the call connection information collection unit 21. The call connection information collection unit 21 is always running, and continues to determine whether or not the current time is the call connection information collection period until the call connection information collection period (step A1). When the call connection information collection period comes, the call connection information number for each station, which is stored for each exchange 5, is read, and the call connection information after that number is collected for the exchange 5 (step A2). When the collection of the call connection information is successful (step A3), the collected call connection information is stored in the call connection information storage unit 31 of the storage device 3 (A4). Then, the collected call connection information number for each station corresponding to the collected exchange 5 is updated to the last number of the collected call connection information (step A).
5) Next, it is determined whether there is an uncollected exchange (step A6). If there is an uncollected exchange, call connection information of the next uncollected exchange 5 is collected (step A).
2). If the collection of the call connection information fails (step A3), it is determined whether there is a next uncollected exchange (step A6). If there is an uncollected exchange, the call connection of the exchange 5 is determined. Information is collected (A2). Step A
Regardless of whether the call connection information collection is successful or unsuccessful as a result of the determination in step 3, if there is no uncollected switch as a result of the determination in step A6, the call The collection of connection information is restarted (step A1).

FIG. 3 is a flowchart describing the flow of the processing of the reservation information collecting unit 22. Reservation information collection unit 22
Is always activated similarly to the call connection information collection unit 21,
Until the reservation information collection cycle, it is determined whether the current time is the reservation information collection cycle (step B1). When the reservation information collection period is reached, the collected reservation information number is read, and the reservation information after that number is collected by the reservation control device 7 (step B2). It is determined whether the collection of the reservation information was successful (step B3). If the collection was not successful, the process returns to step B1, and the collection of the reservation information is restarted at the next reservation information collection cycle. By the judgment in step B3,
When the reservation information collection is successful, the collected reservation information is written in the reservation information storage unit 32 of the storage device 3 (step B4). Then, the collected reservation information number is updated to the last number of the collected reservation information (step B5). Thereafter, the collection of the reservation information is restarted in the next reservation information collection cycle (step B1).

FIG. 4 and FIG. 5 are flowcharts describing the flow of the processing of the usage history creation unit 23. FIG. 5 shows the last part of a series of processes continued from FIG.

Similarly to the call connection information collection unit 21 and the reservation information collection unit 22, the usage history creation unit 23 is always running, and checks whether or not the current time is the usage history creation cycle (step C1).

When the usage history generation cycle comes, the reservation information for a certain period stored in the reservation information storage unit 32 of the storage device 3 is read out one by one (step C2). Whether there is call connection information having the same host terminal as the “host terminal” of the read reservation information is determined from the call connection information for the certain period stored in the call connection information storage unit 31 of the storage device 3. A search is performed (step C3). If there is matching call connection information (step C4), it is determined whether the "reservation start time" in the reservation information matches the "start time" in the call connection information (step C5), and the two are matched. In this case, the information in which the call connection information is made to correspond to the reservation information is registered in the use history storage unit 33 of the storage device 3 as “corresponding reserved call with service” (step C6). If the start times do not match in step C5, the process returns to step C3, and the search for call connection information is continued. In step C4,
If there is no call connection information that matches the reservation information, only the reservation information is registered in the use history storage unit 33 of the storage device 3 as “corresponding reserved call without service” (step C).
7). Next, it is determined whether or not the registered reservation information is the last reservation information in the reservation information for the certain period (step C8).
And the process from step C2 to step C7 is repeated until the last reservation information.

When the reading of the reservation information for the certain period is completed, the call connection information for the certain period stored in the call connection information storage unit 31 of the storage device 3 is read one by one (step C9). It is determined whether the “immediate / reservation type” of the read call connection information is immediate (step C10),
If it is immediate, the call connection information is stored in the usage history storage unit 33 of the storage device 3 as “immediate call” (step C).
11). If the "immediate / reservation type" is "reservation", the process returns to step C9 to continue reading the call connection information. When the reading of the call connection information for the certain period is completed (step C12), the process returns to step C1, and the creation of the usage history is restarted at the next usage history creation cycle. In this way, the usage history creation unit 23 periodically associates the reservation information with the call connection information, and stores the result in the usage history storage unit 33.
To be stored.

FIG. 6 is a flowchart showing the flow of the process of the usage history output unit 24. The usage history output unit 24 determines an output condition based on a request from the input device 1 (step D1). For example, if the output condition is specified as an arbitrary year and month “March 1999”, the usage history storage unit 33 searches for a usage history whose “start time” is “March 1999” (step D2). ). After the search is completed, the search result is output to output device 4
(Step D3).

Next, a second embodiment of the present invention will be described with reference to the drawings. In the following description, the above-described embodiment will be referred to as a first embodiment. FIG. 7 is a block diagram showing the configuration of the second embodiment. This embodiment is different from the first embodiment in that the data processing device 2 has a second usage history output unit 25 and a recording medium 9 in addition to the configuration of the data processing device 2 shown in FIG. Different from form. This recording medium 9 can be a magnetic disk or another recording medium.

The second usage history output unit 25 converts the usage history information into a CSV format and records it on the recording medium 9.
In the present embodiment, the second usage history output unit 25 receives the request from the input device 1 and uses the usage history storage unit 3 of the storage device 3.
3, the usage history information is read out one by one, converted into the CSV format, and recorded on the recording medium 9.

Next, the operation of this embodiment will be described with reference to the drawings. FIG. 8 is a flowchart illustrating the operation of the present embodiment. In the first embodiment shown in FIG.
The usage history information is output to the output device 4 according to the instruction of the input device 1.
Output only. As a result, the use history information cannot be referred to or processed by another device. Therefore, in the present embodiment, the second usage history output unit 25
Is provided so that the usage history information processed by the second usage history output unit 25 can be output to the recording medium 9. As a result, the use history information can be referred to or processed by another device.

The second use history output unit 25 is provided with the input device 1
, The use history information is read out one by one from the use history storage unit 33 of the storage device 3 (step E1 in FIG. 8).
Elements of the read usage history information are separated by “,” (comma) and converted into a CSV format (step E2). By converting to the CSV format in this way, it is easy to refer to and process the usage history information by another device. When all the usage history information is read out and the conversion into the CSV format is completed (step E3), it is recorded on the recording medium 9 (step E4).

The case where all the use history information is recorded on the recording medium has been described above. However, only the use history information corresponding to the input condition specified by the input device 1 may be stored.

A usage history creation program for controlling the data processing apparatus of FIGS. 1 and 2 to execute the usage history creation method in a video conference of the present invention is recorded together with an operating system on a recording medium (not shown). . This use history creation program has a first program for executing a process of associating reservation information with call connection information, and a second program for executing an immediate call process.

The first program includes a first procedure for judging that the current time is the history information creation cycle, and a second procedure for reading out the stored reservation information for a fixed period one by one at the history information creation cycle. The second procedure, the third procedure of searching for the call connection information of the video conference that matches the video conference described in the read reservation information, and the video conference that matches the video conference described in the reservation information A fourth procedure for determining whether or not the call connection information is the same as the call connection information. If the result of the determination in the fourth procedure is that there is no call connection information for the video conference that matches the reserved video conference, In the fifth and fourth steps of registering information indicating that there is no call connection information corresponding to the above, if the result of determination is that there is call connection information for a video conference that matches the reserved video conference, Is a reservation A sixth step determines the start time matched in the reservation start time and call connection information in the broadcast,
In the sixth procedure, when the reservation start time in the reservation information matches the start time in the call connection information, a seventh procedure of registering information in which the call connection information is associated with the reservation information; If the start times do not match in the sixth procedure, the procedure returns to the third procedure, repeats the third, fourth, and fifth procedures until the start times match, and then executes the seventh procedure. Or execute the third, fourth, and fifth procedures.
When the fifth and seventh procedures are executed, whether the reservation information is the last reservation information of the certain period,
If the result of the ninth procedure for determining whether or not the reservation information is not the last reservation information, the procedure returns to the second procedure,
It includes a procedure from the second procedure to the fifth procedure or a tenth procedure for executing a procedure from the second procedure to the seventh procedure until the last reservation information is obtained.

The second program is an eleventh procedure for reading out the call connection information for a certain period one by one, and a twelfth procedure for judging whether or not the read out call connection information is an immediate call.
If the result of the determination in the twelfth procedure is not an immediate call, the procedure returns to the eleventh procedure and repeats the eleventh and twelfth procedures until the call connection information of the immediate call is read. If the result of the determination in the twelfth procedure is that the call is an immediate call, a fourteenth procedure for registering the call connection information as the call connection information for the immediate call, and A fifteenth procedure for determining whether the connection information is connection information or not, and as a result of the fifteenth determination, if the call connection information is not the last call connection information, the eleventh, And a sixteenth procedure for executing the twelfth, thirteenth, fourteenth, and fifteenth procedures.

The flowchart of FIG. 4 shows the flow of the processing by the first program, and the flowchart of FIG.
9 shows a flow of a process by the second program.

[0040]

The present invention has the following effects. (1) The call connection information and the reservation information in the video conference system are associated with each other, and the associating result information is stored as a use history, so that the scheduled time at the time of the reservation and the actual connection time do not match. The use history information can reflect both the scheduled time at the time of reservation and the actual connection time. For example, even if the service time of 60 minutes at the time of reservation ends in 30 minutes for an actual connection, the use history information can reflect both the scheduled time at the time of reservation and the actual connection time. The reason is that call connection information and reservation information are collected, and the use history creation unit searches for the corresponding call connection information using the "host terminal" and "start time" of the reservation information as keys, and This is because both the reservation information and the call connection information to be stored are stored in the use history storage unit. (2) Collection of call connection information and reservation information is performed periodically, and if collection fails due to a device failure or the like, collection is restarted in the next cycle. Further, creation of a usage history is performed periodically. Even if the collection of the call connection information and the reservation information fails due to a device failure and the association cannot be performed, thereafter, by periodically repeating the association process, due to the failure of the exchange or the reservation control device, Even if the call connection information and the reservation information cannot be collected, if the call connection information and the reservation information can be collected after the failure recovery, the usage history information can be correctly created. As a result, the use history information can be created without being affected by the device states of the exchange and the reservation control device.

The reason why such an effect occurs is as follows. Since both the call connection information collection unit and the reservation information collection unit periodically execute the collection process, even if the collection fails in the current cycle, the collection process can be performed again in the next cycle. Further, since the use history creation unit also periodically executes the use history creation process, even if the reservation information and the call connection information cannot be associated with each other in this cycle, they can be associated again in the next cycle. Therefore, if the reservation information and the call connection information have been collected when the usage history is created, the association can be made. (3) Searching the usage history information according to the output condition specified by the input device and outputting the search result to the output device, the usage history of the video conference system can be changed to, for example, “use date”, “host terminal”. , "Reserved person", etc., and only the corresponding use history can be output to the output device. As a result, statistical information under various conditions can be easily obtained according to the purpose.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a first embodiment of a video conference system.

FIG. 2 is a flowchart describing an operation of a call connection information collecting unit 21.

FIG. 3 is a flowchart describing a processing flow of a reservation information collecting unit 22.

FIG. 4 is a flowchart describing a flow of processing of a use history creation unit.

FIG. 5 is a flowchart describing the flow of processing of a usage history creation unit, and shows the last part of a series of processing continued from FIG. 4;

FIG. 6 is a flowchart showing a flow of processing of a usage history output unit 24;

FIG. 7 is a block diagram illustrating a configuration of a second exemplary embodiment of the present invention.

FIG. 8 is a flowchart illustrating the operation of the second embodiment.

[Explanation of symbols]

 Reference Signs List 1 input device 2 data processing device 3 storage device 4 output device 5 exchange 6 terminal 7 reservation control device 8 reservation terminal 9 recording medium 21 call connection information collection unit 22 reservation information collection unit 23 use history creation unit 24 use history output unit 25 use History output unit (second) 31 Call connection information storage unit 32 Reservation information storage unit 33 Usage history storage unit

Claims (11)

[Claims] An exchange, a plurality of terminals for a video conference accommodated in the exchange, a reservation device for receiving a reservation of the video conference and controlling the reservation, and a call connection for carrying out a video conference between the terminals. A data processing device that controls and collects and manages call connection information and reservation information, and a usage history of a video conference system having a storage device that stores the call connection information and reservation information collected by the data processing device. When one of the call connection information and the reservation information is used as the first information and the other is used as the second information, the stored first and second information are read out. The first information used as the key and the information obtained by the associating process for associating the search result of the second information with the second information are searched for using the first information as a key. Profit A use history creating method in a video conference system, characterized by storing as use history information. 2. first information collected during a predetermined period;
The associating process is repeatedly performed with the second information collected in the predetermined period for each usage history creation cycle, and the associating process cannot be performed due to failure in collecting the first information or the second information. 2. The method according to claim 1, wherein, in the case, after the cycle in which the failure has occurred, the method according to claim 1 includes a process of executing the association process in each usage history generation cycle to generate the usage history information. 3. The use history method according to claim 1, wherein the first information is set in the reservation information, the second information is set in the call connection information, and the video conference identification included in the reservation information for identifying the video conference. Using the information as a key, a first search for searching for call connection information having the same video conference identification information is performed, and as a result of the search, if there is no corresponding call connection information, the reservation information and the search result are compared. Is registered as usage history information. If the result of the first search indicates that there is call connection information having the same video conference identification information, the reserved TV included in the reservation information Using the conference start time as a key, a second search for searching for call connection information having a start time coinciding with the start time is executed, and as a result of the second search, if the relevant call connection information exists, The reservation information is paired with the second search result. If the corresponding call connection information does not exist as a result of the second search, the use history information is registered for the next reservation information without registering the result of the second search. Is executed, and as a result of the second search, when the corresponding call connection information does not exist, when there is no next reservation information, the process of creating the usage history creation information is repeated in the next usage history creation cycle. The method of claim 2. 4. The method according to claim 1, further comprising the step of collecting call connection information, wherein said call connection information collection step includes a step of collecting, after a predetermined call connection information collection cycle, a call connection information number that has been collected for each exchange. The call connection information is collected, and when the collection of the call connection information is successful, the call connection information is stored in a storage device, the collected call connection information number for each exchange is updated, and the collection of the call connection information is performed. Is unsuccessful, if there is a next uncollected exchange, the call connection information collection process from the uncollected exchange is executed, and if there is no next uncollected exchange, the next call connection information collection is performed. Restarting the collection of call connection information in a cycle, wherein the use history generation method includes a reservation information collection step, wherein the reservation information collection step includes, for each predetermined reservation information collection cycle, a reservation after a collected reservation information number. Collects information from the reservation controller If the collection of the reservation information is successful, the reservation information is stored in the storage device to update the collected reservation information number, and if the collection of the reservation information is unsuccessful, the next reservation information collection is performed. The method according to claim 1, wherein collection of reservation information is restarted in a cycle. 5. A determination is made as to whether the read call connection information is the call connection information of an immediate call, and if the read call connection information is the call connection information of an immediate call, the call connection information is used as the call history of the immediate call. 2. The method according to claim 1, comprising the step of registering as information. 6. An exchange, a plurality of video conference terminals accommodated in the exchange, a reservation device for receiving reservation of the video conference and controlling the reservation, and a call connection for carrying out a video conference between the terminals. A video conference system with a use history creation function, comprising: a data processing device for collecting and managing call connection information and reservation information; and a storage device for storing the call connection information and reservation information collected by the data processing device. The data processing device, for each predetermined call connection information collection cycle, collects call connection information after the call connection information number already collected for each exchange, if the collection of the call connection information succeeds, The call connection information is stored in the storage device, and when the collection of the call connection information is unsuccessful, if there is a next uncollected switch, the call connection information is collected from the uncollected switch, When there are no exchanges that have not been collected, the call connection information collection unit restarts collection at the next call connection information collection cycle, and the reservation information after the collected reservation information number is collected from the reservation control unit for each reservation information collection cycle If the reservation information collection is successful, the collected reservation information is stored in a storage device,
If the reservation information collection is not successful, the same as the reservation information collection unit that restarts collection in the next reservation information collection cycle, using the reservation information collected for a predetermined period as a key in each usage history creation cycle Search for the call connection information collected during a predetermined period of time, store the reservation information in the storage device as use history information in association with the search result of the call connection information, and store the reservation information or the call connection information. If the collection fails and the association processing cannot be performed, after the cycle in which the collection failed, the association processing is executed every use history creation cycle to create the use history information, and A video conference system with a usage history creation function, comprising: a usage history generation unit that performs a process of storing call connection information in the storage device. 7. A first usage history output unit for reading and outputting usage history information stored in the storage device, and inputting a search condition of usage history information to be output from outside to perform the first usage. The video conference system according to claim 6, further comprising: an input device that outputs to the history output unit; and an output device that displays usage history information output from the first usage history output unit. 8. A recording medium for recording usage history information, an input device for externally inputting an output condition of usage history information to be recorded on the recording medium, and an output condition for inputting the output condition from an input device. A second usage history output unit that searches for usage history information stored in the storage device, reads out the usage history information one by one, converts the read usage history information into a CSV format, and outputs the CSV to the recording medium. Item 7. The video conference system according to Item 6. 9. An exchange, a plurality of video conference terminals accommodated in the exchange, a reservation device for accepting a video conference reservation and performing reservation control, and a call connection for performing a video conference between the terminals. Use for creating a usage history in a video conference system having control, a data processing device for collecting and managing call connection information and reservation information, and a storage device for storing the call connection information and reservation information collected by the data processing device In a recording medium on which a history creation program is recorded, the use history creation program includes: a first procedure for determining that the current time is a history information creation cycle; A second procedure for reading out the reservation information of the period one by one, and call connection information of a video conference corresponding to the video conference described in the read reservation information A fourth procedure of determining whether or not the call connection information of the video conference coincides with the video conference described in the reservation information; and As a result, when there is no call connection information of the video conference that matches the reserved video conference, a fifth procedure of registering information indicating that there is no call connection information corresponding to the reservation information, In the procedure, if the result of the determination is that there is call connection information of the video conference that matches the reserved video conference, it is determined whether the reservation start time in the reservation information matches the start time in the call connection information. In the sixth procedure and the sixth procedure, when the reservation start time in the reservation information matches the start time in the call connection information, the information in which the call connection information is associated with the reservation information is registered. The seventh procedure and the sixth procedure , If the start time does not match,
Returning to the third procedure, the third, fourth, and fifth procedures are repeated until the start times match, and then the seventh procedure is executed.
Alternatively, an eighth procedure for executing the third, fourth, and fifth procedures, and when the fifth or seventh procedure is executed, whether the reservation information is the last reservation information for the certain period, If the result of the ninth procedure is not the last reservation information, the procedure returns to the second procedure, and the second procedure returns to the fifth procedure until the last reservation information is obtained. Or a tenth procedure for executing a procedure from the second procedure to the seventh procedure. 10. The usage history creation program further includes: an eleventh procedure for reading out the call connection information for the predetermined period one by one; and determining whether the read call connection information is an immediate call. If the result of the determination in the twelfth procedure is not an immediate call, the procedure returns to the eleventh procedure and repeats the eleventh and twelfth procedures until the call connection information of the immediate call is read. If the result of the determination in the twelfth procedure is an immediate call, a fourteenth procedure for registering the call connection information as the call connection information for the immediate call, A fifteenth procedure for determining whether or not the final call connection information, and as a result of the fifteenth determination, if the call connection information is not the final call connection information, up to the final call connection information, Eleventh, twelfth, first
The recording medium according to claim 9, further comprising: a sixteenth procedure for performing a third, a fourteenth, and a fifteenth procedure. 11. The recording medium according to claim 10, wherein the procedure of the eleventh procedure is executed after the ninth procedure, and returns to the first procedure after completing the fifteenth procedure.