JP7200600B2 - Communication systems, upload methods and programs - Google Patents

Description

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

2. Description of the Related Art Conventionally, in a communication system such as UCS (multi-site conference system) that performs communication at multiple sites, communication between each terminal used by each user for communication is managed by a management system, and video and audio are exchanged between each terminal. Communication is performed by transmitting data such as Log information is recorded in each terminal, and if there is a problem, the log information is sent by the user's operation, and the administrator verifies it. In recent years, in order to deal with troubles, a technology has been studied that enables the management system to manage the log information in each terminal.

As one of such technologies, there is a document that discloses a technology for preventing transmission omission of log information (see Patent Document 1).

However, for example, if the terminal starts sending log information during communication, the amount of data communication will increase on the communication line shared with the video signal, so it is necessary to limit the image quality of the video signal and so on. There was a problem of becoming

SUMMARY OF THE INVENTION It is an object of the present invention to provide a communication system, an upload method, and a program capable of reliably transmitting log information without degrading image quality.

In order to solve the above-described problems, a communication system according to an embodiment of the invention includes a communication terminal and controls transmission of communication information between the communication terminal and another communication terminal, generation means for generating log information during communication between said communication terminal and said other communication terminal; storage means for storing log information generated by said generation means; transmission means for uploading log information; communication control means for allocating log information uploaded by the transmission means to a server different from a server controlling transmission of the communication information , wherein the transmission means automatically uploads the log information at a predetermined timing, The transmission of the log information is canceled when new communication is started between the communication terminal and another communication terminal during the transmission of the log information.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in becoming possible to transmit log information reliably, without degrading an image quality.

FIG. 1 is a schematic diagram showing an example of the configuration of the entire system according to the first embodiment. FIG. 2 is a diagram illustrating an example of a hardware configuration of a communication terminal; FIG. 3 is a diagram showing an example of the hardware configuration of each device in the communication management system. FIG. 4 is a diagram showing an example of the configuration of functional blocks of a communication terminal. FIG. 5 is a diagram showing an example of definition information. FIG. 6 is a diagram illustrating an example of log information created by the log information creating unit. FIG. 7 is a diagram illustrating an example of transmission data created by a message creating unit; FIG. 8 is a schematic diagram for explaining the automatic log upload function. FIG. 9 is a diagram showing an example of a configuration of functional blocks of a communication request sorting device. FIG. 10 is a diagram illustrating an example of a functional block configuration of a load distribution control device. FIG. 11 is a diagram showing an example of the functional block configuration of the communication management server. FIG. 12 is a diagram showing an example of terminal information of communication terminals managed in the terminal management table. FIG. 13 is a diagram illustrating an example of a configuration of functional blocks of a log upload server; FIG. 14 is a flow chart showing an example of terminal log transmission processing in the log transmission control unit of the communication terminal. FIG. 15 is a flowchart showing an example of timing determination processing performed by the transmission timing determination unit of the communication terminal. FIG. 16 is a flowchart illustrating an example of optimization processing by a log information optimization processing unit; FIG. 17 is a flow chart showing an example of timing distribution processing performed by a transmission timing distribution processing unit of the communication device. FIG. 18 is a flowchart showing an example of request allocation processing in the communication request allocation device. FIG. 19 is a flowchart illustrating an example of load distribution processing of requests in the load distribution control device. FIG. 20 is a flowchart showing an example of terminal log information storage processing in the log upload server.

Hereinafter, embodiments of a communication system, an upload method, and a program according to the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, a video conference will be described as an example of communication between multiple bases. It is assumed that conference information (audio, video, etc.) is transmitted in a video conference as communication information transmitted between multiple locations.

(First embodiment)
FIG. 1 is a schematic diagram showing an example of the configuration of the entire system according to the first embodiment. First, with reference to FIG. 1, an overview of the entire system according to the first embodiment will be described.

The communication system 1 shown in FIG. 1 has a plurality of communication terminals (10a, 10b, 10c, . . . ) and a communication management system 20. In the following description, any one of the communication terminals (10a, 10b, 10c, . . . ) will be referred to as "communication terminal 10".

Each communication terminal (10a, 10b, 10c, . . . ) is on a LAN (Local Area Network) built at each user's base. For example, the communication terminal 10a is on the LAN constructed at the office in Tokyo, the communication terminal 10b is on the LAN constructed at the office in Osaka, and the communication terminal 10c is on the LAN constructed at the office in Fukuoka. . Each communication terminal (10a, 10b, 10c, . . . ) accesses the communication management system 20 through the Internet 30 respectively. Although illustration is omitted, it is assumed that a communication network between each communication terminal (10a, 10b, 10c, . . . ) and the communication management system 20 includes a large number of relay devices. In addition, the communication network may include locations where wireless communication is performed as well as wired communication.

Communication terminal 10 exchanges conference information (audio, video, etc.) d1 with other communication terminals 10 via communication management system 20 to hold a multipoint conference. Among the conference information d1 that the communication terminal 10 exchanges with other communication terminals 10 in the multi-site conference, the image may be a still image or a moving image. Also, the video may include both moving images and still images.

Furthermore, the communication terminal 10 transmits the terminal log information d2 of its own device to the communication management system 20 . Here, "terminal log information" is log information such as operation contents and processing contents received by the own device.

Specifically, the communication terminal 10 has "generating means", "storage means", and "transmitting means" as means related to transmission of the terminal log information d2. The “generating means” generates log information during communication between the communication terminal 10 and another communication terminal 10 . The "storage means" stores the generated log information. The 'transmitting means' uploads (transmits) log information (terminal log information d2) that can be uploaded according to the communication line band used by the conference information d1. For example, if uploading puts a strain on the communication line band, the “transmitting means” uploads the terminal log information d2 with a data amount or timing that does not put the communication line band on.

In this way, the communication terminal 10 holds a multipoint conference with another communication terminal 10 under the control of the communication management system 20, and the terminal log information d2 recorded in the multipoint conference is stored in the communication line band used by the conference information d1. is uploaded to the communication management system 20 at a data amount and timing that do not put pressure on the user.

The communication management system 20 is an example of "communication control means". A communication management system 20 shown in FIG. A part or all of each device may be built within the provider of the multi-site conference system, or may be provided by the cloud.

The communication request distribution device 21 distributes the request (transmission information) from the communication terminal 10 to the load distribution control device 22 of the server group in charge of each process according to the request type (meeting information d1/terminal log information d2). distribute to In this embodiment, when the type of request is conference information d1, the communication request distribution device 21 distributes the request to the load distribution control device 22 of the server group of the communication management server 23 that manages the conference information. Further, when the request type is the terminal log information d2, the communication request distribution device 21 distributes the request to the load distribution control device 22 of the server group of the log upload server 24 that manages the log.

The load distribution control device 22 performs communication band limitation, load distribution, timeout control, and the like. In the communication band limitation, the communication band is limited by weighting the transmission of requests to the server group depending on the operating rate of the CPU (Central Processing Unit), the amount of data, and the like. In load distribution, load distribution is performed by transmitting requests to each server in a server group in the order determined by a predetermined algorithm. In timeout control, an error is returned to the communication terminal 10 when there is no response to a request sent to the server within a predetermined time.

The communication management server 23 processes requests related to the conference information d1 of the communication terminal 10. FIG.

The log upload server 24 processes requests related to the terminal log information d2 of the communication terminal 10. FIG.

<Hardware configuration>
Next, the hardware configuration of the communication terminal 10 and each device included in the communication management system 20 will be described.

FIG. 2 is a diagram showing an example of the hardware configuration of the communication terminal 10. As shown in FIG. As shown in FIG. 2, the communication terminal 10 includes a CPU 151 that controls the overall operation of the communication terminal 10, a ROM (Read Only Memory) 152 that stores a communication terminal program, and a RAM (Random Access Memory) that is used as a work area for the CPU 151. Memory) 153, various data (terminal ID (Identification) and password for uniquely identifying its own device, various definition information, terminal log information d2, management table of terminal log information d2, meeting information to be transmitted d1, received conference information d1, etc.), a SSD (Solid State Drive) 155 that controls reading or writing of various data to the flash memory 154 under the control of the CPU 151, and a recording medium 156 such as a flash memory. A media drive 157 for controlling reading or writing (storage) of data to, an operation button 158 operated when selecting a destination of the communication terminal 10, and a power switch 159 for switching ON/OFF of the power of the communication terminal 10. , a network I/F 161 for transmitting various data such as conference information d1 and terminal log information d2, a CMOS (Complementary Metal Oxide Semiconductor) 162 for capturing an object and obtaining an image according to the control of the CPU 151, and controlling the driving of this CMOS 162. Image sensor I/F 163, microphone 164 for inputting voice, speaker 165 for outputting voice, voice input/output I/F 166 for processing input/output of voice signals between microphone 164 and speaker 165 under the control of CPU 151, CPU 151 It has a display I/F 167 for transmitting image data to an external display 170 under control, and a bus line 160 such as an address bus and a data bus for electrically connecting each part as shown in FIG.

Note that the recording medium 156 is detachably attached to the communication terminal 10 . In addition, as long as it is a non-volatile memory from which data is read or written under the control of the CPU 151, not only the flash memory 154 but also an EEPROM (Electrically Erasable and Programmable ROM) or the like may be used. Furthermore, the CMOS 162 is a solid-state imaging device that converts light into electric charge and digitizes the image (video) of the subject. may The display 170 is composed of a liquid crystal or an organic EL that displays an image of a subject, icons for operation, and the like.

FIG. 3 is a diagram showing an example of the hardware configuration of each device (communication request distribution device 21, load distribution control device 22, communication management server 23, log upload server 24) in the communication management system 20. As shown in FIG. The communication request distribution device 21, the load distribution control device 22, the communication management server 23, and the log upload server 24 all have substantially the same hardware configuration. FIG. 3 shows an example of these hardware configurations. Note that the hardware configuration is not limited to include all of them.

Each device includes a CPU 251 that controls the overall operation of the device, a ROM 252 that stores programs for each device, a RAM 253 that is used as a work area for the CPU 251, an HD (Hard Disk) 254 that stores various data, and a CPU 251 A HDD (Hard Disk Drive) 255 that controls reading or writing of various data to the HD 254 according to the control of , a media drive 257 that controls reading or writing (storage) of data to a recording medium 256 such as a flash memory, a cursor, a menu, A display 258 for displaying various information such as windows, characters, or images; a network I/F 259 for data transmission including reception of various data such as conference information d1 and terminal log information d2; A keyboard 261 having a plurality of keys for inputting, a mouse 262 for selecting and executing various instructions, selecting an object to be processed, moving a cursor, etc., and a CD-ROM (Compact Disc Read) as an example of a removable recording medium. CD-ROM drive 214 for controlling reading or writing of data to/from Only Memory) 263, and bus lines 260 such as an address bus and a data bus for electrically connecting each part as shown in FIG. .

In the following, when referring to the hardware of each device (the communication request distribution device 21, the load distribution control device 22, the communication management server 23, and the log upload server 24), each device has the hardware shown in FIG. using hardware configuration.

<Functional configuration of the embodiment>
Next, functional configurations of the communication terminal 10 and the communication management system 20 will be described.

<Functional Configuration of Communication Terminal 10>
FIG. 4 is a diagram showing an example of the functional block configuration of the communication terminal 10. As shown in FIG. Communication terminal 10 includes transmission/reception unit 101, operation input reception unit 102, login request unit 103, imaging unit 104a, image display control unit 104b, voice input unit 105a, voice output unit 105b, format information acquisition unit 106, storage/read processing. It has a unit 107 , a log information creation unit 108 and a message creation unit 109 . Furthermore, the communication terminal 10 has a log information optimization processing section 110 and a log transmission control section 120 . Here, the transmitting/receiving unit 101, the message creating unit 109, and the log transmission control unit 120 mainly correspond to "transmitting means". The storage/read processing unit 107 and the storage unit 1000 mainly correspond to the “storage means”. The log information creating unit 108 mainly corresponds to the "creating means". The log information optimization processing unit 110 corresponds to "optimization means".

Each unit is implemented by the CPU 151 reading and executing a program stored in the ROM 152 . Each unit appropriately uses the storage unit 1000 such as the flash memory 154 shown in FIG.

(Functional units of communication terminal 10)
Next, each functional unit of the communication terminal 10 shown in FIG. 4 will be described in detail. The transmission/reception unit 101 of the communication terminal 10 transmits/receives various data (information) to/from each device in the communication system 1 through the network I/F 161 shown in FIG. The operation input reception unit 102 receives various inputs by the user from the operation button 158 and the power switch 159 shown in FIG. For example, when the user turns on the power switch 159 shown in FIG. 2, the operation input receiving unit 102 shown in FIG. 4 receives the power ON and turns on the power.

The login requesting unit 103 automatically transmits login request information indicating a login request and the current IP address of the communication terminal 10 from the transmitting/receiving unit 101 to the communication management system 20 upon receipt of the power ON. .

The image capturing unit 104a captures an image of a subject using the CMOS 162 and the image sensor I/F 163 shown in FIG. 2, and outputs image data obtained by the image capturing. The image display control unit 104b performs control for transmitting image data to an external display 170 through the display I/F 167 shown in FIG. The voice input unit 105a inputs voice of the user through the microphone 164 and the voice input/output I/F 166 shown in FIG. 2, converts the voice into a voice signal, and outputs voice data related to the voice signal. The audio output unit 105b converts an audio signal related to audio data into audio using the speaker 165 and the audio input/output I/F 166 shown in FIG. 2 and outputs the audio.

Format information acquisition unit 106 acquires format information registered in storage unit 1000 .

The storage/read processing unit 107 stores various data in the storage unit 1000 and reads various data stored in the storage unit 1000 .

The log information creation unit 108 creates log information based on the details of the operation received by the operation input reception unit 102 and the details of the processing performed by each unit of the communication terminal 10 when communicating with another communication terminal. Here, the log information creation unit 108 selects a format acquired by the format information acquisition unit 106 from a plurality of formats, and creates log information in the selected format. Specifically, the log information creation unit 108 creates a log file of log information having time stamps in chronological order based on the operation details communicated between the device itself and other communication terminals and the processing details of the device itself. and store the log file in the storage unit 1000 . Detailed contents of the log information will be described in detail with reference to FIG.

The message creation unit 109 creates a message including a communication terminal ID for identifying its own device in a format that can be interpreted by the log upload server 24 . Here, the format interpreted by the log upload server 24 is a format according to the communication protocol used in communication between the log upload server 24 and the communication terminal 10, which is its own device, and is predetermined by the communication terminal program. there is As this communication protocol, a communication protocol standardized by the Internet Technology Task Force is preferably used, and XMPP (Extensible Messaging and Presence Protocol) is exemplified. In this embodiment, the message means a message for notifying the destination that at least the terminal log information d2 is included in the transmission data. Note that the contents of the message will be described in detail with reference to FIG.

The log information optimization processing unit 110 optimizes log files for upload. In the log information optimization processing unit 110, the log information rotation processing unit 111 rotates the log files in the storage unit 1000 to perform generation management. Also, the log information compression processing unit 112 compresses the log files that have undergone file rotation. As a result, the log file is optimized as the terminal log information d2 to be uploaded. Here, the log information rotation processing unit 111 corresponds to "file rotation means". The log information compression processing unit 112 corresponds to "compression means". A specific file rotation method and compression method will be described in detail with reference to FIG.

The log transmission control unit 120 controls transmission timing of the terminal log information d2. In the log transmission control unit 120, the transmission timing determination unit 121 determines the transmission timing of the terminal log information d2 from the state of the device itself.

The transmission timing is a predetermined timing for uploading the terminal log information d2, and in the present embodiment, it is determined whether or not a predetermined condition is satisfied. The definition information of the predetermined condition is pre-stored in a storage unit such as the flash memory 154 . It is also possible to display a UI screen on the display 170 and perform settings using a setting unit that accepts settings.

FIG. 5 is a diagram showing an example of definition information. Definition information 1000 shown in FIG. 5 is associated with each state 1001 of its own device and a condition indicating log transmission propriety 1002 . The definition information 1000 includes, for example, a condition that transmission during a teleconference (during transmission of conference information such as audio and video) is "NG", a condition that transmission after the teleconference is "OK", and A condition is defined that transmission immediately after login after power-on is "OK". In addition, these conditions are examples and are not limited to these. For example, it may define at least one of the above conditions, may define the timing of "OK" in transmission during a teleconference, or define other conditions. There may be.

The transmission target determination unit 122 corresponds to a “determination means” and determines a transmission target from the optimized log file, that is, the terminal log information d2. When the transmission of the transmission target is successful, the transmission target determination unit 122 sets information indicating that the terminal log information d2 of the transmission target has been transmitted in the management table of the storage unit 1000 or the like.

The transmission timing distribution processing unit 123 sets a time lag until the start of transmission for transmission targets when an abnormality occurs in requests such as simultaneous transmission from each communication terminal 10 .

(log information)
FIG. 6 is a diagram showing an example of log information created by the log information creation unit 108. As shown in FIG. FIG. 6 shows log information created in JSON format as an example. In the log information 2000 shown in FIG. 6, the item "type" indicates whether the information was transmitted with the other communication terminal 10 at the time of "request" representing a request or received at the time of "response" representing a response. is recorded.

Identification information for identifying communication with another communication terminal 10 is recorded in the “Call-ID” item.

In the "Command" field, an input request received by the operation input receiving unit 102 is recorded, and information such as "invite" requesting the start of communication and "end" requesting the end of communication is recorded. .

In the “Result” item, information representing permission or non-permission as the content of a response from another communication terminal 10 or the content of a response to another communication terminal 10 is recorded.

(sent data)
FIG. 7 is a diagram showing an example of transmission data 2200 created by message creating section 109. As shown in FIG. The message creation unit 109 creates transmission data 2200 including terminal log information d2 optimized by the log information optimization processing unit 110 and determined to be transmitted by the log transmission control unit 120 in a predetermined location.

In the example shown in FIG. 7, transmission data 2200 includes log information 200 created in JSON format and message 2100 created in XML format according to RFC (Request for Comments) 3921, which is one of XMPP. For example, in the message 2100, either the meeting information d1 or the terminal log information d2 is set as the request transmission destination. Accordingly, the request type can be determined in the communication request sorting device 21 . Further, each of the communication terminal program and the communication management program defines that log information is included in the "<body>" tag, which is a child node of the "<message>" tag of the transmission data. . Therefore, the log upload server 24 that receives the transmission data 2200 of FIG. 7 can recognize that log information is included in the "<body>" tag. Note that according to RFC3921, any character string can be recorded in the "<body>" tag, so in FIG. 7 the log information is included in the "<body>" tag. A method of including the log information 2000 in the transmission data 2200 is not particularly limited as long as it follows a communication protocol compatible with the log upload server 24 .

(Auto upload function)
FIG. 8 is a schematic diagram for explaining the automatic log upload function. The communication terminal 10 accumulates log information in the form of a log file, and the log information rotation processing unit 111 performs file rotation. File rotation is performed based on the default value (upper limit). The default value is an upper limit file size (for example, 1 MB) for file rotation and a switching period (for example, daily unit, weekly unit, monthly unit, etc.). I remember. The log information rotation processing unit 111 performs file rotation up to the maximum set number of log file generations, for example, when log writing of log information to the log file exceeds a default value.

The log information rotation processing unit 111 manages generations of each log file subdivided by file rotation using generation information (first generation, second generation, . . . ) in a management table or the like. When the number of generations is exceeded, delete log files in order from the oldest generation.

The log information compression processing unit 112 optimizes by compressing old generation log files among subdivided log files obtained by log rotation. Since the latest data are stored in the form of log files, they are compressed when they are sent.

Here, a known technique such as ZIP or TAR is used as a compression algorithm for compression processing. Note that the compression algorithm is not limited to these. Any compression algorithm may be used as the compression algorithm.

The communication terminal 10 in FIG. 8 shows one piece of terminal log information d2 that has been subdivided by file rotation and further compressed. Each terminal log information d2 is transmitted to the log upload server 24 of the communication management system 20 at a predetermined timing. The terminal log information d2 is sequentially received by the log upload server 24, and the support center side performs troubleshooting based on each terminal log information d2 uploaded to the log upload server 24. FIG.

<Functional Configuration of Communication Management System 20>
<Functional Configuration of Communication Request Distribution Device 21>
FIG. 9 is a diagram showing an example of the configuration of functional blocks of the communication request sorting device 21. As shown in FIG. As shown in FIG. 9 , the communication request distribution device 21 has a transmission/reception section 211 and a request distribution processing section 212 .

The transmission/reception unit 211 transmits and receives various requests. The request distribution processing unit 212 distributes the requests for the conference information d1 and the terminal log information d2 to each device. The distribution processing to each device is performed based on the distribution setting definition information stored in the storage unit such as the HD 254 by the communication request distribution device 21 . The distribution setting definition information is definition information in which a request type and a request transmission destination are associated with each other. In the present embodiment, the load distribution control device 22 of the server group of the communication management server 23 is associated as the request transmission destination for the request whose type is related to the conference information d1. In addition, the load distribution control device 22 of the server group of the log upload server 24 is associated as the request transmission destination for the request type related to the terminal log information d2. Although two types of distribution destinations are shown in the present embodiment, the distribution destinations are not limited to these two types. Other variations may be defined in the distribution setting definition information.

<Functional Configuration of Load Distribution Control Device 22>
FIG. 10 is a diagram showing an example of the functional block configuration of the load distribution control device 22. As shown in FIG. As shown in FIG. 10 , the load distribution control device 22 has a transmission/reception section 221 , a communication band control section 222 , a load distribution control section 223 and a timeout control section 224 .

The transmitting/receiving unit 221 transmits/receives various requests.

Communication band control unit 222 limits the communication band. For example, the load distribution control unit 22 calculates the current total amount of communication band, and if the total amount exceeds a certain amount, the communication band control unit 222 sends a request to the load distribution control unit 223 until the amount becomes equal to or less than the certain amount. block the transmission of (wait). The determination that the amount is equal to or less than a certain amount is performed based on the communication band limit set value stored in the storage unit such as the HD 254 in the load distribution control device 22 .

The load distribution control unit 223 performs load distribution control for allocating and transmitting requests to each server in the group in order to distribute the load of the servers in the group. As the distribution algorithm here, for example, a sequential distribution (round robin) algorithm can be used. In addition, it is also possible to use an algorithm that preferentially assigns servers with less CPU load and memory load from among the servers. Note that these algorithms are examples, and other algorithms may be used without being limited to these.

The timeout control unit 224 performs timeout control when a request is transmitted to a destination server. In the timeout control, an error is returned to the communication request distribution device 21 or the communication terminal 10 when there is no response to the request sent to the server within a predetermined time.

<Functional Configuration of Communication Management Server 23>
FIG. 11 is a diagram showing an example of the configuration of functional blocks of the communication management server 23. As shown in FIG. As shown in FIG. 11, the communication management server 23 includes a transmission/reception unit 231, a terminal authentication unit 232, a state management unit 233, a terminal extraction unit 234, a terminal state acquisition unit 235, a primary screening unit 236, a session management unit 237, a quality It has a determination unit 238 , a storage/read processing unit 239 and a delay time management unit 230 . Each unit is realized by the CPU 251 reading and executing a program stored in the ROM 252 . The communication management server 23 also has a storage unit 5000 . Storage unit 5000 includes various databases (relay device management database 5001, terminal authentication management database 5002, terminal management database 5003, destination list management database 5004, session management database 5005, priority management database 5006, quality management database 5007).

Table configurations of various databases are, for example, as follows. In the relay device management table, for each relay device ID of the relay device, the operation status of the relay device, the date and time when the communication management server 23 received the status information indicating the operation status, the IP address of the relay device, and the maximum data in the relay device. Transmission speed (Mbps) and the like are associated.

In the terminal authentication management table, passwords are associated with the terminal IDs of all the communication terminals 10 managed by the communication management server 23 .

In the terminal management table (DB 5003 in FIG. 11), for each terminal ID of each communication terminal 10, the terminal name, the operating state of each communication terminal 10, the date and time when the login request information was received by the communication management server 23, The IP address etc. of the communication terminal 10 are associated.

FIG. 12 is a diagram showing an example of terminal information of the communication terminal 10 managed by the terminal management table. The terminal information is also managed by the communication terminal itself. In the terminal management table 6000, the terminal name 6001 is the name set for the communication terminal. The operating status 6002 of the terminal is timely updated according to the status of the terminal.

In the destination list management table, all the terminal IDs of the terminals registered as destination terminal candidates are associated with the terminal ID of the request source terminal requesting the start of the video conference. The candidates for the destination terminal are added or deleted in response to an addition or deletion request to the communication management server 23 from the request source terminal.

In the session management table, for each session ID for uniquely identifying a session in which call data is communicated between terminals, the relay device ID of the relay device used for relaying image data and voice data, the request source terminal The communication management server 23 receives the terminal ID, the terminal ID of the destination terminal, the reception delay time (ms) when the image data is received at the destination terminal, and the delay information indicating the delay time from the destination terminal. Date and time are associated. When a video conference is held between two communication terminals 10, the reception date and time of the delay information may be managed based on the delay information transmitted from the request source terminal instead of the destination terminal. However, when a teleconference is held between three or more terminals 10, the reception date and time of the delay information is managed based on the delay information transmitted from the terminal 10 on the receiving side of the image data and audio data.

In the address priority management table, in any communication terminal 10 and any relay device, the address priority is determined according to the sameness/difference of four sets of dot address parts of IP addresses in general IPv4. points are associated to be higher. For example, when the IP address has the same three values from the upper to the lower dot address, the point of the address priority is "5". If the IP address has the same two values from the upper to the lower dot address, the point of address priority is "3". In this case, whether the lowest dot address values are the same or not is irrelevant to the priority. In the case of IP addresses having the same highest value of the dot address and different second highest value, the address priority point is "1". In this case, whether or not the third highest dot address and the lowest dot address have the same value is irrelevant to the priority. In the case of IP addresses with different highest dot addresses, the point of address priority is "0". In this case, whether or not the values of the second, third, and lowest dot addresses are the same is irrelevant to the priority.

In the transmission rate priority management table, the maximum data transmission rate (Mbps) in the relay device is associated with and managed so that the transmission rate priority point increases. For example, when the maximum data transmission speed in the relay device is 1000 Mbps or more, the transmission speed priority point is "5". If the maximum data transmission speed in the relay device is 100 Mbps or more and less than 1000 Mbps, the transmission speed priority point is "3". If the maximum data transmission speed in the relay device is 10 Mbps or more and less than 100 Mbps, the transmission speed priority point is "1". If the maximum data transmission speed in the relay device is less than 10 Mbps, the transmission speed priority point is "0".

In the quality management table, image quality (image quality) of image data to be relayed by the relay device is associated with delay time (ms) of image data in the request source terminal or destination terminal.

(Functional units of communication management server 23)
Next, each functional unit of the communication management server 23 will be described in detail. The transmission/reception unit 231 transmits/receives various data (or information) to/from other terminals, devices, or systems via the network I/F 259 shown in FIG. The terminal authentication unit 232 searches the terminal authentication management table of the storage unit 5000 using the terminal ID and password included in the login request information received via the transmission/reception unit 231 as a search key, and searches the terminal authentication management table. Terminal authentication is performed by judging whether the terminal ID and password are managed. The state management unit 233 manages the operating state of the request source terminal that has requested login. Specifically, the state management unit 233 stores the terminal ID of the requesting terminal, the operating state of the requesting terminal, the reception date and time of the login request information in the communication management server 23, and the IP of the requesting terminal in the terminal management table of the storage unit 5000. Associate and manage addresses.

The terminal extracting unit 234 searches the destination list management table of the storage unit 5000 using the terminal ID of the request source terminal that has made the login request as a key, and reads out the terminal IDs of the destination terminal candidates that can communicate with the request source terminal. By doing so, the terminal ID is extracted. Further, the terminal extracting unit 234 searches the destination list management table to extract the terminal IDs of other requesting terminals in which the terminal ID of the requesting terminal is registered as a destination terminal candidate.

The terminal status acquisition unit 235 searches the terminal management table of the storage unit 5000 using the terminal ID of the destination terminal candidate extracted by the terminal extraction unit 234 as a search key, and for each terminal ID extracted by the terminal extraction unit 234, Read the operating status. As a result, the terminal status acquiring unit 235 can acquire the operating status of the destination terminal candidates that can communicate with the request source terminal that has made the login request. Furthermore, the terminal status acquisition unit 235 acquires the operation status of the request source terminal that has issued the login request by searching the terminal status management table of the storage unit 5000 using the terminal ID as a search key.

The primary narrowing-down unit 236 performs primary narrowing-down processing as processing for supporting the final narrowing-down processing of finally narrowing down to one relay device from a plurality of relay devices. The primary screening unit 236 has a session ID generation unit 236a, a terminal IP address extraction unit 236b, a primary selection unit 236c, and a priority determination unit 236d.

The session ID generator 236a generates a session ID for uniquely identifying a session in which call data is communicated between terminals. The terminal IP address extraction unit 236b searches the terminal management table of the storage unit 5000 based on the terminal ID of the requesting terminal and the terminal ID of the destination terminal included in the start request information sent from the requesting terminal. By doing so, the IP address of each corresponding communication terminal 10 is extracted.

The primary selection unit 236c selects a relay device by selecting the relay device ID of the relay device whose operation status is "ONLINE" among the relay devices managed in the relay device management table of the storage unit 5000. do. Further, the primary selection unit 236c searches the relay device management table based on the IP address of the request source terminal and the IP address of the destination terminal, which are extracted by the terminal IP address extraction unit 236b. For each dot address of the IP address of the relay device, it is checked whether it is the same as or different from each dot address in each IP address of the request source terminal and the destination terminal. Further, for each relay device, the primary selection unit 236c selects the top two relays with the highest points among the integrated points obtained by integrating the higher address priority points for the communication terminal 10 and the transmission speed priority points. Further selection of relay devices is made by selecting a device.

In the present embodiment, the top two relay devices with the highest points are selected, but the present invention is not limited to this. One or more relay devices may be selected.

The priority determination unit 236d refers to the priority management table of the storage unit 5000 and determines the address priority point for each relay device investigated by the primary selection unit 236c. Also, the priority determination unit 236d searches the transmission speed priority management table based on the maximum data transmission speed of each relay device stored in the relay device management table, and selects each relay device narrowed down by the primary selection unit 236c. determines the transmission rate priority point.

The session management unit 237 associates and manages the session ID generated by the session ID generation unit 236a, the terminal ID of the request source terminal, and the terminal ID of the destination terminal in the session management table of the storage unit 5000 . Also, the session management unit 237 manages the relay device ID of the relay device finally selected as one by the final selection unit 16c of the communication terminal 10 for each session ID in the session management table.

The quality determination unit 238 searches the quality control table of the storage unit 5000 using the delay time as a search key, extracts the image quality of the corresponding image data, and determines the image quality of the image data to be relayed by the relay device. The storage/read processing unit 239 performs read processing and write processing of various data (data such as tables) stored in the storage unit 5000 using the HDD 255 shown in FIG. The delay time management unit 230 extracts the corresponding terminal ID by searching the terminal management table of the storage unit 5000 using the IP address of the destination terminal as a search key. The delay time indicated by the delay information is stored and managed in the delay time field portion of the record containing the .

<Functional Configuration of Log Upload Server 24>
FIG. 13 is a diagram showing an example of the functional block configuration of the log upload server 24. As shown in FIG. As shown in FIG. 13 , the log upload server 24 has a transmission/reception section 241 , a storage destination determination section 242 , and a storage/read processing section 243 . Each unit is realized by the CPU 251 reading and executing a program stored in the ROM 252 . The log upload server 24 also has a storage unit 5500 . A storage unit 5500 shows a log management database 5501 stored in the HD 254 .

In the log management table of the log management database 5501, for each terminal ID of the communication terminal 10, a log ID for identifying terminal log information d2, terminal log information d2, a session ID, and time management information are associated. It is The terminal log information d2 includes "invite" for requesting the start of a communication session between terminals, "bye" for notifying the end of this session, "login" for requesting login to the communication management system 20, Information such as "logout" requesting logout from 20 and "cancel" canceling the request may be included. The time management information is information indicating the time managed in association with each piece of terminal log information d2.

(Each functional part of the log upload server)
Next, each functional unit of the log upload server 24 will be described in detail. The transmission/reception unit 241 transmits/receives various data (information) to/from another terminal, device, or system via the network I/F 259 shown in FIG. When the terminal log information d2 is stored in the log management database 5501, the storage destination determination unit 242 distributes the storage destinations to different internal databases according to the type of the terminal log information d2. The storage/read processing unit 243 performs read processing and write processing of various data (data such as tables) stored in the storage unit 5500 using the HDD 255 shown in FIG.

<Processing flow of each device>
Next, the processing flow of each device will be described. First, the transmission processing flow of the terminal log information d2 in the communication terminal 10 will be described, and then the optimization processing of the terminal log information d2 to be transmitted will be described.

FIG. 14 is a flowchart showing an example of terminal log transmission processing in the log transmission control unit 120 of the communication terminal 10. As shown in FIG. First, the log transmission control unit 120 (transmission timing determination unit 121) determines from the state of the communication terminal 10 whether it is time to automatically upload (transmit) the terminal log information d2 (step S1). The details of this determination process will be described later (see FIG. 15).

When the transmission timing determination unit 121 determines that it is not the transmission timing (step S2: No), it periodically repeats the determination of step S1 until the transmission timing.

When the transmission timing determination unit 121 determines that it is the transmission timing (step S2: Yes), the log transmission control unit 120 (transmission target determination unit 122) determines the transmission target as the terminal log information d2 ( step S3). For example, the transmission target determination unit 122 determines, among the terminal log information d2 optimized by the log information optimization processing unit 110, the minimum untransmitted terminal log information d2 as the transmission target. Details of the optimization process performed by the log information optimization processing unit 110 will be described later (see FIG. 16).

Subsequently, the log transmission control unit 120 (transmission timing determination unit 121) determines whether or not an abnormality has occurred by determining whether or not the conference has ended all at once due to an abnormality on the communication line or server side (step S4).

If there is an abnormality (step S4: No), the log transmission control unit 120 (transmission timing distribution processing unit 123) performs timing distribution processing of transmission timing (step S5). Transmission timing dispersion processing section 123 sets a random time lag of 1 to 60 seconds, for example, before transmission starts as timing dispersion processing. This timing distributed processing will be described later with reference to the drawings (see FIG. 17).

If no abnormality has occurred (step S4: Yes), the log transmission control unit 120 performs terminal log information transmission processing for transmitting the transmission target determined in step S3 to the communication management system 20 (step S6). After the transmission, the log transmission control unit 120 returns to step S1 and performs the same processing on the remaining untransmitted data.

FIG. 15 is a flowchart showing an example of timing determination processing performed by the transmission timing determination section 121 of the communication terminal 10. As shown in FIG. First, the transmission timing determination unit 121 compares the definition information 1000 (see FIG. 5) with the operating state 6002 (see FIG. 12) of the terminal (step S1-1).

When the operating state 6002 of the terminal is "meeting" (step S1-2: Yes), the transmission timing determination unit 121 determines that the log transmission propriety 1001 of the definition information 1000 is "NG". It is determined that it is not the transmission timing of d2 (step S1-3), and this determination process is terminated.

Further, when the operation status 6002 of the terminal is not "during a meeting" (step S1-2: No) but "after the meeting" (step S1-4: Yes), the transmission timing determination unit 121 Since the transmittability 1001 is "OK", it is determined that it is OK, that is, it is time to transmit the terminal log information d2 (step S1-5), and this determination process ends.

Further, when the operating state 6002 of the terminal is not "after the meeting ends" (step S1-4: No) but "after login" (step S1-6: Yes), the transmission timing determination unit 121 Since the transmittability 1001 is "OK", it is determined that it is OK, that is, it is time to transmit the terminal log information d2 (step S1-7), and this determination process ends.

Further, if the operating state 6002 of the terminal is not "after login" (step S1-6: No), that is, if the operating state does not match any of the definition information 1000, the transmission timing determination unit 121 It is determined that it is not time to transmit the terminal log information d2 (step S1-8), and this determination process is terminated.

Here, as an example, the flow has been described assuming that nothing is defined other than "during a meeting", "after the end of the meeting", and "after login" of the log transmission availability 1001. FIG. If there are definitions other than these, the transmission timing determination unit 121 determines the rest of the definitions in the same manner as "during the meeting", "after the end of the meeting", and "after login".

Also, here, an example is shown in which an operating state that does not match any of the definition information 1000 is determined as NG, but it may be determined as OK.

FIG. 16 is a flowchart showing an example of optimization processing by the log information optimization processing unit 110 of the communication device 10. As shown in FIG. First, the log information optimization processing unit 110 (log information rotation processing unit 111) performs file rotation processing on log information stored in the form of log files (step S11).

Subsequently, the log information optimization processing unit 110 (log information compression processing unit 112) compresses the old (not the latest) generation log files among the log files that have been subdivided after the file rotation (step S12). . As a result, the log transmission control unit 120 obtains the terminal log information d2 by optimizing the log information stored in the form of log files.

Thus, in the communication terminal 10, the log information stored in the form of log files is optimized, and the optimized terminal log information d2 is sent as a request to the communication request sorting device 21 at a predetermined timing.

FIG. 17 is a flowchart showing an example of timing distribution processing performed by the transmission timing distribution processing unit 123 of the communication device 10. As shown in FIG. First, the transmission timing dispersion processing unit 123 randomly determines the number of seconds between 1 and 60 seconds (step S5-1). Then, the transmission timing distribution processing unit 123 sleeps for the number of seconds determined in the previous stage, and leads to the terminal log information transmission process in the subsequent stage (the process of step S6 in FIG. 14) (step S5-2).

FIG. 18 is a flowchart showing an example of request allocation processing in the communication request allocation device 21. As shown in FIG. First, the transmission/reception unit 211 receives a request (step S21). Specifically, the transmission/reception unit 211 receives transmission data 2200 shown in FIG. 7 transmitted from the communication terminal 10 as a request.

Subsequently, the request distribution processing unit 212 determines the request type from the request received by the transmission/reception unit 211, and distributes the destination of the request (step S22). The request distribution processing unit 212 determines the request type from the request message. In addition, the request distribution processing unit 212 determines the request type from, for example, the request header (for example, Host header), request body (content), and request path (for example, /meeting, /logupload, etc.) of the request. Note that these are examples of indicators for determining the request type, and the indicators are not limited to these. Other indices may be used as appropriate.

Subsequently, the transmission/reception unit 211 transmits the request to the load distribution control device 22 corresponding to the request type (step S23). Specifically, the transmitting/receiving unit 211 transmits the request to the destination (the load distribution control device 22 corresponding to the request type) allocated by the request allocation processing unit 212 . For example, when the request type is "meeting information", the request is transmitted to the load distribution control device 22 of the server group of the communication management server 23 that manages the meeting information. Also, when the request type is "terminal log information", the request is transmitted to the load distribution control device 22 of the server group of the log upload server 24 that manages the terminal log information.

In this way, the request is sent to the corresponding load distribution control device 22 according to the type of the request by the sorting process by the request sorting processor 212 .

FIG. 19 is a flow chart showing an example of load distribution processing of requests in the load distribution control device 22 . Here, processing in the load distribution control device 22 of the log upload server 24 will be described as an example, but the same applies to the load distribution control device 22 of the communication management server 23 .

First, the transmission/reception unit 221 receives the request (step S31). The transmission/reception unit 221 receives transmission data 2200 shown in FIG. 7 as a request from the communication terminal 10 via the communication request sorting device 21 .

Subsequently, the communication band control unit 222 performs communication band control to block transmission of the request received from the transmission/reception unit 221 to the load distribution control unit 223 (step S32).

Subsequently, the load distribution control unit 223 appropriately distributes the request to (a plurality of) log upload servers 24 under its control and transmits the request (step S33).

Subsequently, the timeout control unit 224 performs timeout control (step S34). For example, the timeout control unit 224 determines that a timeout has occurred when a certain period of time has passed while waiting for the request result from the log upload server 24 . The fixed period here is based on the timeout setting value stored in the storage unit such as the HD 254 in the load distribution control device 22 .

Subsequently, the transmission/reception unit 221 transmits the request result (step S35). For example, when the timeout control unit 224 does not determine that a timeout has occurred, the request result from the log upload server 24 is transmitted to the communication terminal 10 via the communication request distribution device 21 . Further, when the timeout control unit 224 determines that a timeout has occurred, the request result of a timeout error is transmitted to the communication terminal 10 via the communication request distribution device 21 .

In this example, the request result is transmitted to the communication terminal 10 via the communication request distribution device 21 , but the request result may be transmitted directly from the load distribution control device 22 to the communication terminal 10 .

In this manner, the load distribution control device 22 performs communication band limitation and load distribution processing for requests. In addition, since the load distribution control device 22 returns the request result from the destination server of the request to the communication terminal 10, the communication terminal 10 manages whether or not the transmission of the terminal log information d2 to be transmitted has been completed according to the request result. be able to. For example, when an error is returned as a request result, the communication terminal 10 can determine that the terminal log information d2 corresponding to this request result has not been transmitted, and can manage the untransmitted information in a management table or the like.

FIG. 20 is a flowchart showing an example of processing for storing the terminal log information d2 in the log upload server 24. As shown in FIG. First, the transmission/reception unit 241 receives transmission data 2200 shown in FIG. 7 as a request from the communication terminal 10 via the load distribution control device 22 (step S41).

Subsequently, the storage destination determination unit 242 determines the storage destination DB (step S42). Specifically, when log information is stored in the log management DB, the storage destination determination unit 242 distributes storage destinations to different internal DBs according to the type of the terminal log information d2. For example, the storage destination determination unit 242 distributes storage destinations to different internal DBs according to the value of "Type" of the terminal log information d2. In addition, the storage destination determination unit 242 distributes storage destinations to separate internal DBs according to the value of "Command" in the terminal log information. In addition, the storage destination determination unit 242 distributes storage destinations to different internal DBs according to the value of "Log Level" of the terminal log information d2. These are only examples, and other log information classifications may be defined.

Subsequently, the storage/read processing unit 243 stores the log information in the log management DB (step S43). Specifically, the storage/reading processing unit 243 stores the terminal log information in a predetermined location of the log management DB determined by the judgment in step S42.

Subsequently, the transmission/reception unit 241 transmits the request result (step S44). For example, the transmitting/receiving unit 241 transmits a request result indicating that the terminal log information has been stored to the load distribution control device 22 .

Note that it is not necessary to have all of the communication system configuration, the hardware configuration of each device, and the functional configuration shown as an example in this embodiment, and a combination of some of them may be used. For example, the communication band control unit 222, the load distribution control unit 223, and the timeout control unit 224 in the load distribution control device 22 may be realized by one or a combination of two of them.

In the present embodiment, an example of a video conference is shown as communication using a communication system, but the present invention is not limited to this. Communication also includes presentation of information. For example, it is possible to apply the present communication system to electronic commerce (conversational product transaction), a two-way video distribution terminal (Showroom Nico Nico Douga (registered trademark)), and the like. Also, in the present embodiment, conference information (audio/video) has been described as an example of communication information, but the present invention is not limited to this. For example, stroke data (handwritten information) or text data may be included.

<Effects of the first embodiment>
This embodiment has optimization means. Since this reduces the size of the terminal log information d2, the transmission time is shortened, and the communication line bandwidth and processing load on the communication management system 20 can also be reduced. In addition, since the size of the terminal log information d2 is reduced, the log transmission is completed in a short time, so failures due to interruption of transmission can be reduced.

In addition, in the present embodiment, the load distribution control device 22 distributes requests to a plurality of log upload servers 24, so that the request processing load on each log upload server 24 is reduced. request can be processed.

Further, in the log upload server 24, the database (DB) storing log information is differentiated according to the type, so it is possible to reduce the load on the DB resource.

In addition, since the load distribution control device 22 performs time-out control, it is possible to cancel a request when it is taking a long time due to a large number of requests.

In addition, the load distribution control device 22 does not monopolize the communication line band for the terminal log information d2, and it is possible to prevent deterioration of the conference quality due to compression of the communication line band for the conference information.

Also, when an abnormality occurs in a request such as simultaneous transmission from each communication terminal 10, the transmission timing distribution processing unit 123 performs timing distribution processing to distribute the transmission timing. Therefore, it is possible to prevent the terminal log information d2 from being transmitted from many communication terminals 10 all at once, and the communication line band and the processing load of the communication management system 20 to increase explosively.

As described above, in the present embodiment, it is possible to automatically upload log information without putting pressure on the communication line band used for communication of conference information (communication information).

In addition, by combining with the feature of transmission of unsent logs on the communication terminal side, it is possible to reduce the communication band load and processing load on the communication management system while preventing omissions in transmission of terminal log information.

Since the communication line band is not compressed in this way, it is possible to prevent the deterioration of the conference quality such as the image quality in the video conference or the like. In particular, by reducing the communication bandwidth load and processing failures on the communication management system, there is no pressure on the communication line bandwidth used in the conference, and the conference quality (video and audio), which is the original value of the multi-site conference system, can be improved. can be kept high. In addition, since the transmission status of the terminal log information d2 can be managed by the communication terminal 10, it is possible to reliably transmit the log information without omission.

In addition, since the terminal log information d2 can be collected automatically and reliably, it can be used for cause analysis, etc. when a trouble occurs in the multi-site conference system as a whole or in the communication terminal 10. FIG. Further, by analyzing the usage method of the communication terminal 10, the tendency of the meeting, etc. from the terminal log information d2, it is possible to make use of it for proposing and improving more convenient functions.

(Modification 1)
In the first embodiment, an example of performing log rotation and compression of log files in the communication terminal 10 was shown. You may make it

(Modification 2)
In the first embodiment, the communication terminal 10 determines that the minimum number of terminal log information d2 that has not yet been transmitted is to be transmitted. You may do so. In this case, since the latest generation log file is not compressed, the latest generation log file is compressed and transmitted at the time of transmission.

(Modification 3)
In the first embodiment, in the communication terminal 10, the transmission timing distributed processing unit 123 randomly sets a time lag for starting transmission. ) may use a different time lag value for each communication terminal 10 derived from the fourth octet information.

(Modification 4)
When a new video conference is started by receiving a user operation from the operation input receiving unit 102 while the terminal log information d2 is being transmitted in the communication terminal 10, the transmission timing determination unit 121 detects this and transmits the terminal log information d2. may be canceled. By doing so, even when a new conference is started, it is possible to prevent deterioration of the conference quality due to compression of the communication line band.

(Modification 5)
The transmitted terminal log information d2 may be deleted from the storage unit 1000 of the communication terminal 10 after the terminal log information d2 is transmitted. For example, since it is possible to determine whether the transmission of the terminal log information d2 to be transmitted has been completed based on the request result from the log upload server 24, when the transmission is completed, the transmission target determination unit 122 to be deleted as sent. By doing so, the storage area of the communication terminal 10 can be effectively utilized.

(Modification 6)
In the first embodiment, the log transmission control unit 120 is configured to autonomously determine transmission timing and appropriately transmit logs. After the processing is finished, the log transmission control unit 120 may be inquired about whether or not the log transmission is possible, and the terminal log information d2 may be transmitted when the inquiry result is "OK".

(Modification 7)
The load distribution control unit 22 may increase or decrease the number of subordinate log upload servers 24 according to the processing load on the log upload servers 24 . The processing load here corresponds to, for example, the amount of communication (log size) of the terminal log information d2 to the load distribution control unit 22, the number of simultaneous reception requests, and the like. The average CPU usage and average memory usage of each log upload server 24 also correspond. Note that these are examples of indices for determining the processing load, and other indices may be used without being limited to these. By doing so, the server resources in the communication management system can be efficiently used according to the load of log upload processing.

(Modification 8)
In the log upload server 24, storage destinations may be assigned to different internal tables according to the types of terminal log information d2 instead of separate internal DBs.

(Modification 9)
If the communication terminal 10 cannot transmit the terminal log information d2 for some reason (the transmission is not completed), the communication terminal 10 may transmit the previous log information collectively at the next transmission. For example, transmission cancellation, transmission failure, disconnection, power shutdown, etc. can be considered. In such a case, as a predetermined timing, for example, after the video conference between the communication terminal 10 and the other communication terminal 10 ends, the log information of this time and the previously unsent log information are collectively transmitted. Alternatively, immediately after the communication terminal 10 logs in to the communication management system 20, the current log information and the previous unsent log information are collectively transmitted. By doing so, even if the log transmission fails, the terminal log information d2 will not be lost, and the log upload server 24 can reliably collect the terminal log information d2.

A program executed in the communication system of the present embodiment and modifications is a file in an installable format or an executable format, and can be stored on a CD-ROM, flexible disk (FD), CD-R, DVD (Digital Versatile Disk), or the like. provided on a computer-readable recording medium.

Further, the programs executed by the communication systems of the present embodiment and modified examples may be stored on a computer connected to a network such as the Internet, and provided by being downloaded via the network. Further, the programs executed in the communication systems of the present embodiment and modified examples may be provided or distributed via a network such as the Internet.

Further, the programs of the present embodiment and modifications may be configured so as to be pre-installed in a ROM or the like and provided.

Reference Signs List 1 communication system 10a, 10b, 10c communication terminal 20 communication management system 2
REFERENCE SIGNS LIST 1 communication request distribution device 22 load balancing control device 23 communication management server (device) 24 log upload server (device) 30 Internet 101 transmission/reception unit 102 operation input reception unit 103 Login request unit 104a... Imaging unit 104b...
Image display control unit 105a Audio input unit 105b Audio output unit 106 Format information acquisition unit 107 Storage/read processing unit 108 Log information creation unit 109 Message creation unit
110 Log information optimization processing unit 111 Log information rotation processing unit 112 Log information compression processing unit 120 Log transmission control unit 121 Transmission timing determination unit 122 Transmission target determination unit 123 Transmission timing Distributed processing unit, d1: meeting information, d2: terminal log information

JP 2011-227868 A

Claims (31)

A communication system that includes a communication terminal and controls transmission of communication information between the communication terminal and another communication terminal,
generating means for generating log information during communication between the communication terminal and the other communication terminal;
a storage means for storing the log information generated by the generating means;
transmission means for uploading log information;
communication control means for allocating the log information uploaded by the transmission means to a server different from the server controlling transmission of the communication information ;
The transmission means automatically uploads the log information at a predetermined timing, and transmits the log information when new communication is started between the communication terminal and another communication terminal during transmission of the log information. cancel the
A communication system characterized by: The transmission means is
having a judgment means for judging log information that can be uploaded from a plurality of log information without putting pressure on the communication line bandwidth used for communication,
uploading the log information determined by the determining means;
When the transmission information is communication information, the communication control means performs control so that the transmission information is transmitted to a communication management server that manages communication at multiple locations between the communication terminal and other communication terminals, and the transmission information is In the case of the log information, control to send to the log upload server;
The communication system according to claim 1, characterized by: The communication terminal has the generation means, the storage means, and the transmission means,
3. The communication system according to claim 1 or 2, characterized by: As the timing for automatic upload by the transmission means,
not possible during transmission of said communication information;
4. The communication system according to any one of claims 1 to 3 , characterized in that: The timing at which the transmission means automatically uploads
After the communication between the communication terminal and the other communication terminal is completed,
4. The communication system according to any one of claims 1 to 3 , characterized in that: The timing at which the transmission means automatically uploads
Immediately after the communication terminal logs in to the communication control means,
4. The communication system according to any one of claims 1 to 3 , characterized in that: Having a setting means for setting the timing of automatic upload by the transmission means,
4. The communication system according to any one of claims 1 to 3 , characterized in that: The transmitting means deletes the transmitted log information accumulated in the storage means after transmitting the log information.
4. The communication system according to any one of claims 1 to 3 , characterized in that: optimizing means for optimizing the log information stored in the storage means;
4. The communication system according to any one of claims 1 to 3 , characterized in that: The optimization means has a file rotation means for performing file rotation up to the maximum setting of the number of log file generations, using a default value as a reference for file rotation, as a process for optimizing the log information.
10. The communication system according to claim 9 , characterized by: the optimization means further comprises compression means for compressing the file;
As a process for optimizing the log information, each log file rotated by the file rotation means is compressed by the compression means.
11. The communication system according to claim 10 , characterized by: The transmission means compresses and transmits the latest generation log file that has not been compressed at the time of transmission of the log information by the compression means.
12. The communication system according to claim 11 , characterized by: The transmission means transmits the log information of the amount of data that does not put pressure on the communication line band, from the untransmitted portion of the log information obtained by the optimization process.
12. The communication system according to claim 11 , characterized by: If the transmission of the log information is not completed during the transmission of the log information, the unsent log information that was not completed in the previous transmission is also collectively transmitted at the next transmission of the log information.
4. The communication system according to any one of claims 1 to 3 , characterized in that: After the communication between the communication terminal and the other communication terminal is finished, the current log information and the previously unsent log information are collectively transmitted.
15. The communication system according to claim 14 , characterized by: Immediately after the communication terminal logs in to the communication control means, the current log information and the previously unsent log information are collectively transmitted.
15. The communication system according to claim 14 , characterized by: The transmitting means performs timing distribution processing for dispersing the transmission timing of the log information at the time of simultaneous termination.
4. The communication system according to any one of claims 1 to 3 , characterized in that: As the timing distributed processing, a random time lag is provided before the start of transmission;
18. The communication system according to claim 17 , characterized by: As the timing distributed processing, a different time lag is provided for each communication terminal from the terminal ID of each communication terminal,
19. The communication system according to claim 18 , characterized by: As the timing distributed processing, a different time lag is provided for each communication terminal from the IP address of each communication terminal,
18. The communication system according to claim 17 , characterized by: a plurality of load distribution control units for distributing loads to a plurality of servers;
a communication request distribution unit that distributes each request for communication information and log information to the plurality of load distribution control units according to the type of communication information or log information;
has
limiting the communication band in at least one of the plurality of load distribution control units to which the log information is distributed;
4. The communication system according to any one of claims 1 to 3 , characterized in that: load distribution to a plurality of log upload servers in the load distribution control unit that distributes the log information;
22. The communication system according to claim 21 , characterized by: The load distribution control unit changes the number of the log upload servers according to the processing load.
23. The communication system according to claim 22 , characterized by: The processing load is the amount of communication of the log information to the load distribution control unit,
24. The communication system according to claim 23 , characterized by: The processing load is the number of simultaneous reception requests to the load distribution control unit,
24. The communication system according to claim 23 , characterized by: The processing load is the average CPU usage of each log upload server,
24. The communication system according to claim 23 , characterized by: The processing load is the average memory usage of each log upload server,
24. The communication system according to claim 23 , characterized by: The log upload server distributes storage destinations to different internal DBs according to the type of log information when storing log information in the log management DB.
23. The communication system according to claim 22 , characterized by: performing timeout control in a load distribution control unit to which the log information is distributed;
23. The communication system according to claim 22 , characterized by: A method of uploading log information in a communication system that includes a communication terminal and controls transmission of communication information between the communication terminal and another communication terminal,
generating log information during communication between the communication terminal and the other communication terminal;
storing the generated log information;
sending log information;
a step of allocating the transmitted log information to a server different from the server controlling transmission of the communication information;
including
In the step of transmitting the log information, the log information is automatically uploaded at a predetermined timing, and when new communication is started between the communication terminal and another communication terminal during transmission of the log information, the cancel sending log information,
upload method. the communication terminal computer,
generating means for generating log information during communication between the communication terminal and another communication terminal;
a storage unit for storing the log information generated by the generation unit in a storage unit;
When uploading the log information , the log information is automatically uploaded at a predetermined timing, and when new communication is started between the communication terminal and another communication terminal during transmission of the log information, the transmission means for canceling transmission of log information ;
A program to function as

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