JP2019110446A - Communication terminal, terminal control program, terminal control method, and communication system - Google Patents

Abstract

To make it possible to output information for verifying communication quality.SOLUTION: A communication terminal 200 includes: an acquisition unit 212 for acquiring a message input by a user; a log generation unit 211 for generating a log including quality information indicating communication quality and positional information indicating a position at which communication quality is measured; a keyword determination unit 213 for determining whether a message acquired by the acquisition unit 212 includes a predetermined keyword related to the communication quality; and a transmission unit 214 for associating the message acquired by the acquisition unit 212 with the log generated by the log generation unit 211 to transmit the associated message to the outside when the keyword determination unit 213 determines that the message includes a predetermined keyword.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a communication terminal that measures communication quality, a terminal control program, a terminal control method, and a communication system.

  The communication terminal can measure the communication quality of wireless communication performed with the base station. The communication quality is represented by, for example, indicators such as RSSI (received signal strength), SNR (signal to noise ratio) and the like. As one means for improving communication quality when there is an area with poor communication quality, there is known a means for remotely controlling the direction of an antenna installed in a base station managed by a telecommunications carrier (for example, Patent Literature 1).

Unexamined-Japanese-Patent No. 2000-278021

  By the way, for example, the telecommunications carrier investigates whether a message such as “bad radio wave” or “phone can not be connected” is posted to a web site including SNS, and based on the result of the investigation, the above-mentioned We are trying to improve communication quality by using measures. However, even when a message as described above is found on a website, the communication quality actually measured by the communication terminal is unknown, and it has been difficult for the communication carrier to verify the communication quality.

  Therefore, the present invention has been made in view of these points, and it is an object of the present invention to provide a communication terminal, a terminal control program, a terminal control method, and a communication system capable of outputting information for verifying communication quality. I assume.

  A communication terminal according to a first aspect of the present invention is a log including message acquisition means for acquiring a message input by a user, quality information indicating communication quality, and position information indicating a position at which the communication quality is measured. Log generation means for generating, keyword determination means for determining whether or not a predetermined keyword related to the communication quality is included in the message acquired by the message acquisition means, and the keyword determination means determines the predetermined message in the message And a transmission unit that associates the message acquired by the message acquisition unit with the log generated by the log generation unit when it is determined that a keyword is included, and transmits the message to the outside.

  The transmission unit associates the message acquired by the message acquisition unit with a log including the quality information indicating the communication quality measured within a predetermined time including the time when the message is input, to the outside. It may be sent.

The message acquisition means may acquire the message to be posted by the user using application software operating on the communication terminal.
The message acquisition means may acquire a message before the user posts in the application software.

The log generation unit may generate the log including the quality information indicating the communication quality measured in response to activation of the application software.
The message acquisition means may acquire a message obtained by converting a voice uttered in a call by the user into a character string.
The log generation unit may generate the log including the quality information indicating the communication quality measured in response to the message acquisition unit acquiring the message.

  A terminal control program according to a second aspect of the present invention includes, in a computer, a step of acquiring a message input by a user, quality information indicating communication quality, and position information indicating a position at which the communication quality is measured. The steps of generating a log, determining whether the acquired message includes a predetermined keyword relating to the communication quality, and determining that the message includes the predetermined keyword, And transmitting the acquired message and the generated log in association with each other.

  A terminal control method according to a third aspect of the present invention includes a computer-implemented step of acquiring a message input by a user, quality information indicating communication quality, and position information indicating a position at which the communication quality is measured. Generating a log including the information, determining whether the acquired message includes a predetermined keyword related to the communication quality, and determining that the message includes the predetermined keyword And the step of associating the acquired message with the generated log and transmitting it to the outside.

  A communication system according to a fourth aspect of the present invention includes the communication terminal and a management device that communicates with the communication terminal, and the management device transmits the message and the log transmitted from the communication terminal. It comprises: acquiring means for acquiring; and quality judging means for judging whether communication quality at a position indicated by the position information is normal based on the quality information.

The quality determination unit may determine whether communication quality in a predetermined range from a position indicated by the position information is normal based on the quality information.
When the value of the communication quality indicated by the quality information exceeds a predetermined value, the quality judging means determines that the communication quality in the predetermined range is normal from the position indicated by the position information corresponding to the quality information. It is also good.

The quality determination unit may determine whether the communication quality is normal based on the number of logs acquired by the acquisition unit.
The quality determination means may determine whether the communication quality in the one predetermined range is normal based on the number of logs including position information indicating a position included in the one predetermined range. .

  The communication system is associated with the message based on the type of the predetermined keyword included in the message acquired by the acquiring unit when the quality judging unit judges that the communication quality is abnormal. The apparatus may further include weighting means for weighting the position indicated by the position information corresponding to the quality information.

  According to the present invention, it is possible to output information for verifying communication quality.

It is a schematic diagram of the communication system concerning this embodiment. It is a block diagram of a communication terminal concerning this embodiment. It is a schematic diagram of the message acquisition method which the communication terminal which concerns on this Embodiment performs. It is a block diagram of a management device concerning this embodiment. It is a schematic diagram of the quality state detection method which the management apparatus which concerns on this Embodiment performs. It is a sequence diagram which shows the flow of operation | movement of the communication system which concerns on this Embodiment.

[Overview of Communication System S]
FIG. 1 is a schematic view of a communication system S according to the present embodiment. The communication system S includes a management apparatus 100, a plurality of communication terminals 200, and a plurality of base stations 10. The number of communication terminals 200 and base stations 10 included in the communication system S is not limited. The communication system S may include devices such as other servers and terminals.

  The base station 10 is a wireless base station device capable of performing wireless communication (mobile communication) such as LTE (Long Term Evolution). The base station 10 includes an antenna, a processor, an electric circuit, and other equipment necessary for wireless communication, and is wirelessly connected to the communication terminal 200 in a range (ie, cell) in which it can communicate. The base station 10 relays communication between the communication terminal 200 and the network N such as the Internet.

  The communication terminal 200 is a communication device capable of performing wireless communication such as LTE. The communication terminal 200 is, for example, a portable terminal such as a smartphone or a tablet terminal. Communication terminal 200 is wirelessly connected to base station 10 and communicates with network N via base station 10. Further, the communication terminal 200 measures the quality of communication with the base station 10 as described later, and measures its own position.

  Further, application software (hereinafter, referred to as SNS application) used for a service for posting a message including SNS (Social Networking Service) is installed in the communication terminal 200. Communication terminal 200 acquires a message input by the user in the SNS application.

  The management apparatus 100 is a computer that stores and manages quality information indicating communication quality measured by the communication terminal 200. The management device 100 is connected to the network N by wire or wirelessly.

[Configuration of Communication Terminal 200]
FIG. 2 is a block diagram of communication terminal 200 according to the present embodiment. Arrows in FIG. 2 indicate the main data flow, and there may be data flows not shown in FIG. In FIG. 2, each block is not a hardware (apparatus) unit configuration but a function unit configuration. As such, the blocks shown in FIG. 2 may be implemented in a single device or may be implemented separately in multiple devices. Transfer of data between the blocks may be performed via any means such as a data bus, a network, a portable storage medium, and the like.

  Communication terminal 200 includes control unit 210, positioning signal reception unit 220, communication unit 230, storage unit 240, and sound collection unit 250. The control unit 210 includes a log generation unit 211, an acquisition unit 212, a keyword determination unit 213, and a transmission unit 214.

  The positioning signal reception unit 220 includes, for example, a GPS (Global Positioning System) receiver, and receives a positioning signal from a GPS satellite. Communication terminal 200 can calculate coordinates of its own position with high accuracy using positioning signals from a plurality of GPS satellites.

  The communication unit 230 is a communication interface for communicating with the management apparatus 100 via the base station 10. The communication unit 230 includes an antenna, a processor, an electric circuit, and the like for performing wireless communication. The communication unit 230 performs predetermined processing on a communication signal received from the outside to acquire data, and inputs the acquired data to the control unit 210. Also, the communication unit 230 performs predetermined processing on the data input from the control unit 210 to generate a communication signal, and transmits the generated communication signal to the outside.

The storage unit 240 is a storage medium including a read only memory (ROM), a random access memory (RAM), a hard disk drive, and the like. The storage unit 240 stores in advance a program to be executed by the control unit 210. In addition, the storage unit 240 stores the quality information measured by the communication terminal 200.
The sound collection unit 250 is a microphone capable of collecting surrounding sound waves. The sound collection unit 250 acquires, for example, voice input in a call, that is, voice emitted by a user in a call.

  The control unit 210 is a processor such as a central processing unit (CPU), for example, and executes the program stored in the storage unit 240 to be used as the log generation unit 211, the acquisition unit 212, the keyword determination unit 213, and the transmission unit 214. Function. The functions of the log generation unit 211, the acquisition unit 212, the keyword determination unit 213, and the transmission unit 214 will be described later with reference to FIG. At least a part of the functions of the control unit 210 may be performed by an electrical circuit. In addition, at least part of the functions of the control unit 210 may be executed by a program executed via a network.

  Communication terminal 200 according to the present embodiment is not limited to the specific configuration shown in FIG. The communication terminal 200 is not limited to one device, and may be configured by connecting two or more physically separated devices in a wired or wireless manner.

[Description of message acquisition method]
FIG. 3 is a schematic view of a message acquisition method performed by communication terminal 200 according to the present embodiment. Log generation unit 211 of communication terminal 200 includes a log including quality information indicating communication quality measured using communication unit 230, and position information indicating a position at which communication quality obtained using positioning signal reception unit 220 is measured. To generate (a). Specifically, the log generation unit 211 first measures the quality of communication with the base station 10. Although RSSI or SNR is used as the communication quality in the present embodiment, other indicators capable of indicating high or low communication quality or poor may be used. Also, the communication quality may indicate that the communication has been terminated normally or has been abnormally terminated (disconnected).

  The log generation unit 211 may perform measurement of communication quality in either voice communication or data communication, or may measure communication quality with limitation to communication using a specific software. The log generation unit 211 may measure the communication quality in each communication, or may measure the communication quality in the communication when a predetermined time has elapsed since the previous measurement.

  In addition, the log generation unit 211 may generate a log including quality information indicating communication quality measured in response to activation of the SNS application, or in response to the acquisition unit 212 described later acquiring a message. A log including quality information indicating the measured communication quality may be generated. By doing this, the log generation unit 211 can measure the communication quality at a timing close to when the user feels dissatisfaction with the communication quality.

  The log generation unit 211 may change the frequency of measurement of communication quality in accordance with the remaining amount of the battery (rechargeable battery) of the communication terminal 200. For example, the log generation unit 211 decreases the measurement frequency when the remaining battery level of the communication terminal 200 is smaller than a predetermined threshold, and increases the measurement frequency when the remaining battery capacity of the communication terminal 200 is equal to or higher than the predetermined threshold. By doing this, it is possible to balance the operation time of the communication terminal 200 and the measurement frequency.

  Subsequently, the log generation unit 211 measures the position (coordinates) of the communication terminal 200 at the time of communication quality measurement using the positioning signal from the GPS satellite received by the positioning signal reception unit 220. The measurement of the position of the communication terminal 200 by the log generation unit 211 is not limited to a specific method. For example, the log generation unit 211 may estimate the position of the communication terminal 200 at the time of communication quality measurement based on the position of the cell of the base station 10 with which the communication terminal 200 can communicate.

  The log generation unit 211 measures the position at any one time of communication quality measurement at the start, the middle, or the end of the communication as the position at the time of the communication quality measurement. The log generation unit 211 stores the generated log in the storage unit 240.

  The acquisition unit 212 of the communication terminal 200 acquires a message input by the user (b). Specifically, the acquisition unit 212 acquires a message to be posted using a SNS application in which the user operates in the communication terminal 200. The acquisition unit 212 may acquire the message input by the user when pressing the post button provided in the SNS application, or may acquire it before posting (for example, when the message is input) You may

  The message acquired by the acquisition unit 212 is not limited to the message posted in the SNS application. For example, the acquisition unit 212 may acquire, via the sound collection unit 250, a message obtained by converting the voice uttered by the user into a character string. A well-known technique can be utilized for character string conversion of the sound which acquisition part 212 performs.

  The keyword determination unit 213 of the communication terminal 200 determines whether the message acquired by the acquisition unit 212 includes a predetermined keyword related to communication quality (c). For example, the keyword determination unit 213 includes a keyword (for example, communication and radio waves) indicating that the content is related to communication, and a keyword (for example, bad or broken) indicating that the content is negative for communication quality. Determine if it is included in the message.

  The keyword determination unit 213 may determine whether or not a keyword (for example, an accident, a weather, an event, or the like) related to a factor affecting the communication quality is included in the message in addition to the above-described keyword. By doing this, the keyword determining unit 213 can more easily determine whether it is necessary for the communication carrier to take measures to improve the communication quality.

  The transmission unit 214 of the communication terminal 200 associates the message acquired by the acquisition unit 212 with the log generated by the log generation unit 211 when the keyword determination unit 213 determines that the message includes a predetermined keyword. Send to the outside (d). Specifically, the transmission unit 214 determines the communication quality measured within a predetermined time including the time at which the message is acquired by the message acquired by the acquisition unit 212 and the log generation unit 211 via the communication unit 230. Are associated with a log including quality information indicating. When the acquiring unit 212 acquires a message in which the voice is converted into a character string, the transmitting unit 214 uses the time when the voice is emitted as the time when the message is input.

  The transmitting unit 214 manages, for example, the message acquired by the acquiring unit 212 and the log including the quality information indicating the communication quality measured at the time closest to the time when the message is input, in association with the log Send to device 100. The management device 100 receives and stores the message and the log from the communication terminal 200 (e).

[Configuration of Management Device 100]
FIG. 4 is a block diagram of the management apparatus 100 according to the present embodiment. In FIG. 4, arrows indicate the main data flow, and there may be data flows not shown in FIG. 4. In FIG. 4, each block is not a hardware (apparatus) -based configuration but a function-based configuration. As such, the blocks shown in FIG. 4 may be implemented in a single device or may be implemented separately in multiple devices. Transfer of data between the blocks may be performed via any means such as a data bus, a network, a portable storage medium, and the like.

  The management device 100 includes a control unit 110, a communication unit 120, and a storage unit 130. The control unit 110 includes an acquisition unit 111, a quality determination unit 112, a weighting unit 113, and an output unit 114.

  Communication unit 120 is a communication interface for communicating with communication terminal 200 via base station 10. The communication unit 120 includes a processor for performing communication, a connector, an electric circuit, and the like. The communication unit 120 performs predetermined processing on a communication signal received from the outside to acquire data, and inputs the acquired data to the control unit 110. Further, the communication unit 120 performs predetermined processing on the data input from the control unit 110 to generate a communication signal, and transmits the generated communication signal to the outside.

  The storage unit 130 is a storage medium including a ROM, a RAM, a hard disk drive, and the like. The storage unit 130 stores in advance a program to be executed by the control unit 110. The storage unit 130 also stores the quality information received from the communication terminal 200. The storage unit 130 may be provided outside the management apparatus 100, and in that case, data may be exchanged with the control unit 110 via the communication unit 120.

  The control unit 110 is, for example, a processor such as a CPU, and functions as an acquisition unit 111, a quality determination unit 112, a weighting unit 113, and an output unit 114 by executing a program stored in the storage unit 130. The functions of the acquisition unit 111, the quality determination unit 112, the weighting unit 113, and the output unit 114 will be described later with reference to FIG. At least a part of the functions of the control unit 110 may be performed by an electrical circuit. In addition, at least a part of the functions of the control unit 110 may be executed by a program executed via a network.

  The management apparatus 100 according to the present embodiment is not limited to the specific configuration shown in FIG. The management device 100 is not limited to one device, and may be configured by connecting two or more physically separated devices in a wired or wireless manner.

[Description of quality state detection method]
FIG. 5 is a schematic view of the quality state detection method performed by the management apparatus 100 according to the present embodiment. The acquisition unit 111 of the management device 100 acquires a message including a predetermined keyword transmitted from the communication terminal 200 and a log including quality information of each point P at which the communication terminal 200 has measured the communication quality (f ). FIG. 5 schematically shows the point P at which the communication terminal 200 has measured the quality information on a map.

  The quality determination unit 112 determines whether the communication quality at the position indicated by the position information included in the log is normal based on the quality information included in the log (g). Specifically, based on the quality information, the quality determination unit 112 determines whether the communication quality in a predetermined range from the position indicated by the position information is normal. For example, when the value of RSSI or SNR as the communication quality indicated by the quality information exceeds a predetermined value, the quality determination unit 112 determines that the communication quality in a predetermined range from the position indicated by the position information corresponding to the quality information is normal. judge. On the other hand, when the value of the RSSI or SNR is equal to or less than the predetermined value, the quality determination unit 112 determines that the communication quality in a predetermined range from the position indicated by the position information corresponding to the quality information is abnormal.

  Here, the predetermined range is a fixed range centered on the position indicated by the position information. The quality determination unit 112 may change the predetermined range in accordance with the type of the keyword related to the factor affecting the communication quality, which is determined to include the keyword determination unit 213 of the communication terminal 200. For example, when an event such as a concert or a fireworks display is held, the quality determination unit 112 determines whether the communication quality is normal, with the venue indicated by the position information as a predetermined range.

  The quality determination unit 112 may determine whether the communication quality is normal based on the number of logs acquired by the acquisition unit 111. Specifically, based on the number of logs including position information indicating a position included in one predetermined range, the quality determination unit 112 determines whether the communication quality in the one predetermined range is normal or not. You may judge. For example, as shown in FIG. 5, when the number of logs included in the predetermined range A1 is one, and the quality determination unit 112 is equal to or less than a predetermined number set in the management apparatus 100 in advance, It is determined that the communication quality in the range A1 is normal. On the other hand, the quality judgment unit 112 judges that the communication quality in the predetermined range A2 is abnormal when the number of logs included in the predetermined range A2 is large and exceeds the predetermined number. The threshold of the number of logs is set in advance in the management apparatus 100.

  When the quality determination unit 112 determines that the communication quality is abnormal, the weighting unit 113 uses the quality information associated with the message based on the type of the predetermined keyword included in the message acquired by the acquisition unit 111. The position indicated by the corresponding position information is weighted (h). The type of the predetermined keyword is, for example, a keyword indicating that communication can not be performed, and a keyword indicating that communication is delayed. In the management device 100, the priority order of predetermined keyword types is set in advance.

  Here, it is assumed that the keyword indicating that the communication can not be performed has a higher priority than the keyword indicating that the communication is in a delayed state. In addition, as shown in FIG. 5, the message M1 associated with the point P1 in which the communication quality is determined to be abnormal is “radio wave is bad” and the point P2 in which the communication quality is determined to be abnormal. It is assumed that there is a message "communication is disconnected" which is the associated message M2.

  In this case, the weighting unit 113 indicates the low priority keyword (that is, the communication is delayed) with respect to the point P2 corresponding to the message M2 including the high priority keyword (that is, the keyword indicating the inability to communicate). Weighting with higher importance than the point P1 corresponding to the message M1 including the On the other hand, the weighting unit 113 weights the point P1 corresponding to the message M1 including the low priority keyword lower in importance than the point P2 corresponding to the message M2 including the high priority keyword. By doing this, when there are a plurality of points where there is an abnormality in the communication quality, the weighting unit 113 can cause the communication carrier to recognize points that need to be prioritized.

  The output unit 114 determines the importance of the position information indicated by the message including the predetermined keyword, the quality information included in the log associated with the message, and the quality information weighted by the weighting unit 113. Output. The output unit 114 may output information on a map as shown in FIG. 5, or a message including a predetermined keyword, quality information, and information indicating a point (for example, latitude and longitude, or an address, etc.) And the importance may be output as a message. For example, when outputting information on a map as shown in FIG. 5, the output unit 114 displays each point P as a display mode according to the degree of importance as information on points weighted by the weighting unit 113 (for example, Output in different colors, shapes, patterns, etc. depending on the importance. The output unit 114 may display the output information on a display (not shown) included in the management apparatus 100, or may display the output information on a management terminal managed by the provider via the communication unit 120.

[Operation of Communication System S]
FIG. 6 is a sequence diagram showing the flow of the operation of the communication system S according to the present embodiment. This sequence diagram is triggered by the activation of the SNS application operating in the communication terminal 200. The acquisition unit 212 of the communication terminal 200 acquires a message that the user posts using the SNS application (S11).

  When the acquisition unit 212 acquires the message, the log generation unit 211 generates a log including quality information indicating the measured communication quality and position information indicating the position at which the communication quality is measured (S12). In the example of FIG. 6, the log generation unit 211 generates a log in response to the acquisition unit 212 acquiring a message in step S12. However, the log may be generated in each communication. The log may be generated at intervals of, or may be generated in response to the activation of the SNS application. The log generation unit 211 stores the generated log in the storage unit 240.

  The keyword determination unit 213 determines whether the message acquired by the acquisition unit 212 includes a predetermined keyword related to communication quality (S13). If the keyword determination unit 213 determines that the message acquired by the acquisition unit 212 does not include a predetermined keyword related to communication quality (in the case of NO in S13), the process ends.

  On the other hand, when it is determined that the message includes the predetermined keyword related to the communication quality (in the case of YES in S13), transmission unit 214 determines the message and the predetermined time including the time when the message is input. It associates with the log including the quality information indicating the measured communication quality, and transmits it to the management apparatus 100.

  Subsequently, when the acquisition unit 111 acquires the message and the log via the communication unit 120, the quality determination unit 112 of the management device 100 communicates at the position indicated by the position information included in the log, the communication indicated by the quality information included in the log It is determined whether the quality is normal (S15). When the quality determination unit 112 determines that the communication quality is normal (in the case of YES in S15), the process ends.

  On the other hand, when the quality determination unit 112 determines that the communication quality is abnormal (in the case of NO in S15), the weighting unit 113 performs weighting based on the type of the predetermined keyword (S16). Then, the output unit 114 determines the importance of the position indicated by the position information corresponding to the message including the predetermined keyword, the quality information included in the log associated with the message, and the quality information weighted by the weighting unit 113. And (S17).

[Effect of this embodiment]
As described above, when the message input by the user includes a predetermined keyword, communication terminal 200 associates the keyword with the log including the measured communication quality and the measured position, and sends the same to management device 100. Send. When the communication quality value included in the log is abnormal, the management apparatus 100 that has acquired the keyword and the log outputs a message including a predetermined keyword and quality information and the like included in the log associated with the message. Do. By doing this, the communication system S detects a position where there is an abnormality in the communication quality and outputs information for verifying the communication quality in response to the user inputting a message regarding the communication quality. it can. As a result, the communication carrier can associate and verify the message input by the user with the communication quality actually measured.

  When the communication system S associates the quality information with the message including the predetermined keyword, for example, the user posts a message such as “bad radio wave”, the communication provider objectively measures the communication quality based on the quality information. You can understand the state of Furthermore, since the communication system S operates triggered by the user inputting a message, the communication carrier can grasp the latest state of the communication quality.

  As mentioned above, although the present invention was explained using an embodiment, the technical scope of the present invention is not limited to the range given in the above-mentioned embodiment, and various modification and change are possible within the range of the gist. is there. For example, a specific embodiment of device distribution and integration is not limited to the above embodiment, and all or a part thereof may be functionally or physically distributed and integrated in any unit. Can. In addition, new embodiments produced by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effects of the new embodiment generated by the combination combine the effects of the original embodiment.

10 base station 100 management unit 110 control unit 111 acquisition unit 112 quality determination unit 113 weighting unit 114 output unit 120 communication unit 130 storage unit 200 communication terminal 210 control unit 211 log generation unit 212 acquisition unit 213 keyword determination unit 214 transmission unit 220 positioning Signal reception unit 230 Communication unit 240 Storage unit 250 Sound collection unit

Claims (15)

Message acquisition means for acquiring a message input by the user;
Log generation means for generating a log including quality information indicating communication quality and position information indicating a position at which the communication quality is measured;
Keyword determination means for determining whether the message acquired by the message acquisition means includes a predetermined keyword related to the communication quality;
When the keyword determining unit determines that the message includes the predetermined keyword, the message acquired by the message acquiring unit is associated with the log generated by the log generating unit and transmitted to the outside Transmitting means,
A communication terminal comprising The transmission unit associates the message acquired by the message acquisition unit with a log including the quality information indicating the communication quality measured within a predetermined time including the time when the message is input, to the outside. Send,
The communication terminal according to claim 1. The message acquisition unit acquires the message to be posted by the user using application software operating on the communication terminal.
The communication terminal according to claim 1 or 2. The message acquisition unit acquires a message before the user posts in the application software.
The communication terminal according to claim 3. The log generation unit generates the log including the quality information indicating the communication quality measured in response to activation of the application software.
The communication terminal according to claim 3 or 4. The message acquisition means acquires a message obtained by converting the voice uttered in the call by the user into a character string.
The communication terminal according to claim 1 or 2. The log generation unit generates the log including the quality information indicating the communication quality measured in response to the message acquisition unit acquiring the message.
The communication terminal according to any one of claims 1 to 6. On the computer
Obtaining a message input by the user;
Generating a log including quality information indicating communication quality and position information indicating a position at which the communication quality is measured;
Determining whether the acquired message includes a predetermined keyword related to the communication quality;
When it is determined that the message includes the predetermined keyword, the acquired message and the generated log are associated with each other and transmitted to the outside;
Terminal control program to execute. Computer runs,
Obtaining a message input by the user;
Generating a log including quality information indicating communication quality and position information indicating a position at which the communication quality is measured;
Determining whether the acquired message includes a predetermined keyword related to the communication quality;
When it is determined that the message includes the predetermined keyword, the acquired message and the generated log are associated with each other and transmitted to the outside;
Terminal control method having: It has a communication terminal given in any 1 paragraph of Claims 1-7, and a controlling device which communicates with the communication terminal,
The management device is
Acquisition means for acquiring the message and the log transmitted from the communication terminal;
Quality determination means for determining whether communication quality at the position indicated by the position information is normal based on the quality information;
A communication system comprising: The quality judging means judges, based on the quality information, whether or not communication quality in a predetermined range from the position indicated by the position information is normal.
A communication system according to claim 10. When the value of the communication quality indicated by the quality information exceeds a predetermined value, the quality judging means determines that the communication quality in the predetermined range is normal from the position indicated by the position information corresponding to the quality information.
The communication system according to claim 11. The quality determination unit determines whether the communication quality is normal based on the number of logs acquired by the acquisition unit.
The communication system according to any one of claims 10 to 12. The quality determination means determines whether the communication quality in the one predetermined range is normal based on the number of logs including position information indicating a position included in the one predetermined range.
The communication system according to claim 13. When the quality judging means judges that the communication quality is abnormal, it corresponds to the quality information associated with the message based on the type of the predetermined keyword contained in the message acquired by the acquiring means Further comprising weighting means for weighting the position indicated by the position information.
The communication system according to any one of claims 10 to 14.

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