JP6360729B2 - COMMUNICATION QUALITY INFORMATION DISPLAY SYSTEM, TERMINAL DEVICE, SERVER DEVICE, COMMUNICATION QUALITY INFORMATION DISPLAY METHOD, AND COMMUNICATION QUALITY INFORMATION DISPLAY PROGRAM - Google Patents

Description

  The present invention relates to a communication quality information display system, a terminal device, a server device, a communication quality information display method, and a communication quality information display program.

  In communication performed by a terminal device, communication quality such as radio wave intensity and communication speed may change depending on the position of the terminal device. For this reason, a system for confirming communication quality at a desired position or range is desired. For example, Patent Document 1 extracts a communication related log acquired within a predetermined range centered on a position where a communication device exists, calculates an average value of communication speeds included in the extracted communication related log, An information system for displaying communication quality information related to communication quality is described.

JP 2014-72683 A

  In the information system described in Patent Literature 1, the information processing apparatus extracts a communication-related log acquired within a predetermined range, and calculates an average value from the extracted communication-related log. However, since an enormous amount of communication-related logs are accumulated, the processing of the information processing apparatus becomes heavy, and there is a possibility that display of communication quality information related to communication quality will be delayed.

  The present invention has been made in view of the above problems, and includes a communication quality information display system, a terminal device, a server device, and a communication quality information display capable of speeding up display of communication quality information relating to communication quality in a desired range. It is an object to provide a method and a communication quality information display program.

  A communication quality information display system according to an aspect of the present invention is a communication quality information display system that includes a terminal device and a server device, and displays communication quality information related to communication quality in a target range on a terminal device. The server device defines a mesh group including a plurality of meshes obtained by dividing an area on a map, and stores a mesh statistical value that is a statistical value related to communication quality in the mesh in association with each mesh. A storage unit, a mesh selection unit that selects a mesh included in the target range determined in the terminal device, and a mesh statistical value acquisition that acquires a mesh statistical value of the mesh selected by the mesh selection unit from the mesh statistical value storage unit Means. The terminal device is calculated by a range determination unit that determines a target range, a statistical value calculation unit that calculates a statistical value of the target range based on the mesh statistical value acquired by the mesh statistical value acquisition unit, and a statistical value calculation unit Display means for displaying the communication quality information of the target range based on the statistical value.

  According to this communication quality information display system, in the server device, the mesh statistics value is stored in the mesh statistics value storage means in association with each mesh, and the mesh included in the target range determined in the terminal device is the mesh. The mesh statistical value of the selected mesh selected by the selecting means is acquired from the mesh statistical value storing means by the mesh statistical value acquiring means. Then, in the terminal device, the statistical value of the target range is calculated by the statistical value calculation unit using the mesh statistical value acquired in the server device, and the communication quality information of the target range is calculated by the display unit based on the calculated statistical value. Is displayed. In this way, the statistical value of the target range is calculated using the mesh statistical value without using the measurement value included in the log acquired within the target range. For this reason, since it is not necessary to process a huge amount of logs, it is possible to speed up the calculation of the statistical value of the target range, and as a result, it is possible to speed up the display of the communication quality information related to the communication quality.

  The display unit may display a map in a predetermined range, and the terminal device may further include a zoom rate acquisition unit that acquires a zoom rate of the map displayed on the display unit, and the mesh statistics value storage unit May define a plurality of mesh groups according to the division roughness for dividing the area on the map in association with the zoom rate of the map displayed on the display means, and the mesh selection means may acquire the zoom ratio. You may select the mesh contained in a target range from the mesh of the mesh group corresponding to the zoom rate acquired by the means. In this case, the statistical value of the target range is calculated using the mesh statistical value of the mesh with the division roughness corresponding to the zoom rate of the map displayed on the terminal device. For this reason, according to the zoom rate of the map currently displayed in the terminal device, the number of mesh statistical values used for calculation of the statistical value of the target range can be adjusted. For example, even when the zoom rate of the map displayed on the terminal device is small, the number of mesh statistics used to calculate the statistics of the target range can be suppressed from becoming an enormous amount. It is possible to speed up the calculation. As a result, even if the zoom ratio of the map displayed on the terminal device is changed, it is possible to speed up the display of the communication quality information related to the communication quality.

  The terminal device further includes a measurement unit that performs measurement related to communication quality of the terminal device, and a log generation unit that generates a log including the measurement value of the measurement performed by the measurement unit and the position information of the terminal device. Well, the server device calculates the mesh statistical value of the mesh defined in the mesh statistical value storage means based on the log storage means for storing the log generated by the log generation means and the log stored in the log storage means And a mesh statistical value calculation means for storing the calculated mesh statistical value in the mesh statistical value storage means. The mesh statistics value of the mesh is considered to change with time. On the other hand, since the mesh statistical value can be updated with the measured value of the terminal device, it is possible to improve the calculation accuracy of the statistical value of the target range.

  The range determination unit may determine the range of the map displayed on the display unit as the target range. In this case, it is possible to speed up the display of the communication quality information in the range of the map displayed on the display means.

  The range determining means may determine a range designated by the user as a target range. In this case, it is possible to speed up the display of communication quality information in a range desired by the user.

  By the way, the present invention can be described as an invention of a communication quality information display system as described above, and also as an invention of a terminal device, a server device, a communication quality information display method, and a communication quality information display program as follows. Can be described. This is substantially the same invention only in different categories, and has the same operations and effects.

  That is, the terminal device which concerns on another aspect of this invention is a terminal device which displays the communication quality information regarding the communication quality in a target range. The terminal device includes a range determination unit that determines a target range, and a statistical value related to communication quality of meshes included in the target range determined by the range determination unit among a plurality of meshes obtained by dividing an area on a map. Statistical value calculation means for acquiring a certain mesh statistical value and calculating the statistical value of the target range based on the acquired mesh statistical value, and communication quality of the target range based on the statistical value calculated by the statistical value calculation means Display means for displaying information.

  The server apparatus which concerns on another aspect of this invention is a server apparatus which provides the information for displaying the communication quality information regarding the communication quality in a target range on a terminal device. This server device defines a mesh group including a plurality of meshes obtained by dividing a region on a map, and stores mesh statistics that are statistical values related to communication quality in the mesh in association with each mesh. A value storage means, a mesh selection means for selecting a mesh included in the target range determined in the terminal device, and a mesh statistical value of the mesh selected by the mesh selection means from the mesh statistical value storage means to obtain the terminal device Mesh statistic value acquisition means for transmitting to.

  The communication quality information display method according to still another aspect of the present invention defines a mesh group including a terminal device and a plurality of meshes obtained by dividing an area on a map, and is a statistical value related to communication quality in the mesh. A communication quality information display method of a communication quality information display system, comprising: a server device including mesh statistical value storage means for storing mesh statistical values in association with each mesh. In this communication quality information display method, a terminal device determines a range determination step in which a target range is determined, a server device selects a mesh included in the target range determined in the range determination step, and a server device The mesh statistical value acquisition step of acquiring the mesh statistical value of the mesh selected in the mesh selection step from the mesh statistical value storage means, and the terminal device based on the mesh statistical value acquired in the mesh statistical value acquisition step, A statistical value calculating step for calculating a statistical value of the target range, and a display step for displaying the communication quality information of the target range based on the statistical value calculated in the statistical value calculating step by the terminal device.

  The communication quality information display program according to still another aspect of the present invention is determined by a range determination unit that determines a target range of a computer and a range determination unit among a plurality of meshes obtained by dividing an area on a map. By obtaining a statistical value of a mesh, which is a statistical value related to the communication quality of a mesh included in the target range, and calculating a statistical value of the target range based on the acquired mesh statistical value, and a statistical value calculating unit Based on the calculated statistical value, it functions as display means for displaying communication quality information in the target range.

  ADVANTAGE OF THE INVENTION According to this invention, the display of the communication quality information regarding the communication quality in a desired range can be sped up.

It is a figure which shows roughly the structure of the communication quality information display system which concerns on one Embodiment. It is a hardware block diagram of the terminal device of FIG. It is a hardware block diagram of the server apparatus of FIG. It is a figure which shows an example of the log stored in the log storage part of FIG. It is a figure which shows an example of the mesh management table stored in the mesh statistics value storage part of FIG. It is a figure for demonstrating an example of a statistical value calculation method. It is a figure for demonstrating the other example of a statistical value calculation method. It is a sequence diagram which shows the log collection process performed by the communication quality information display system of FIG. It is a sequence diagram which shows the communication quality information display process performed by the communication quality information display system of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same reference numerals are used for the same or equivalent elements, and redundant descriptions are omitted.

  FIG. 1 is a diagram schematically illustrating a configuration of a communication quality information display system according to an embodiment. As shown in FIG. 1, the communication quality information display system 1 is configured to include one or more terminal devices 10 and a server device 30, and communication quality information related to communication quality in the target range is displayed on the terminal device 10. It is a system that makes it display. Here, examples of the communication quality include communication speed (throughput) and radio wave quality.

  The terminal device 10 is a device that displays communication quality information related to communication quality in the target range. The terminal device 10 is a device that is used by a user and has a communication function. For example, the terminal device 10 is a mobile phone such as a smartphone, a tablet terminal, or a notebook PC. The server device 30 is a device that provides information for causing the terminal device 10 to display communication quality information related to communication quality in the target range, and is configured by an information processing device, for example. Note that the terminal device 10 and the server device 30 are communicably connected via a network NW. The network NW may be configured by either wired or wireless, and is, for example, a network such as a mobile communication network, the Internet, a wired WAN (Wide Area Network), or a wireless WAN.

  Functionally, the terminal device 10 includes an input unit 11, a measurement unit 12 (measurement unit), a transmission / reception unit 13, a display unit 14 (display unit), and a processing unit 15. The terminal device 10 is configured by hardware shown in FIG.

  FIG. 2 is a hardware configuration diagram of the terminal device 10. As shown in FIG. 2, the terminal device 10 physically includes one or a plurality of CPUs (Central Processing Units) 101, a RAM (Random Access Memory) 102 and a ROM (Read Only Memory) 103, which are main storage devices. The computer includes a communication module 104 that is a data transmission / reception device, an auxiliary storage device 105 such as a semiconductor memory, an input device 106 that accepts user input such as a touch panel, and an output device 107 such as a display. Each function of the terminal device 10 in FIG. 1 is a communication module under the control of the CPU 101 by causing one or more predetermined computer software (communication quality information display program) to be read on hardware such as the CPU 101 and the RAM 102. This is realized by operating the input device 106 and the output device 107, and reading and writing data in the RAM 102 and the auxiliary storage device 105.

  Returning to FIG. 1, the functional configuration of the terminal device 10 will be described in detail. The input unit 11 functions as an input unit that receives a user operation via the input device 106. The input unit 11 transmits operation information indicating the received user operation to the processing unit 15.

  The measurement unit 12 functions as a measurement unit that performs measurement related to communication quality of the terminal device 10. The measurement unit 12 performs measurement according to an instruction from the processing unit 15 and transmits a measurement value (measurement result) to the processing unit 15. For example, the measurement unit 12 measures the communication speed, radio wave quality, and the like of the terminal device 10.

  The transmission / reception unit 13 functions as a transmission / reception unit that transmits various types of information from the processing unit 15 to the server device 30 via the network NW and receives various types of information from the server device 30 via the network NW. The transmission / reception unit 13 transmits the received information to the processing unit 15.

  The display unit 14 functions as a display unit that displays communication quality information of the target range based on a statistical value calculated by a statistical value calculation unit 24 described later. For example, the display unit 14 may display a statistical value as communication quality information, or may display information regarding communication quality according to the statistical value. The display unit 14 displays a map in a predetermined range. The display unit 14 may display the communication quality information of the target range together with the target range on the map.

  The processing unit 15 functions as a processing unit that controls the operation of the terminal device 10. The processing unit 15 includes a measurement control unit 21 (log generation unit), a range determination unit 22 (range determination unit), a zoom rate acquisition unit 23 (zoom rate acquisition unit), and a statistical value calculation unit 24 (statistic value calculation unit). And).

  The measurement control unit 21 functions as a log generation unit that generates a log including the measurement value of the measurement performed by the measurement unit 12 and the position information of the terminal device 10. For example, the measurement control unit 21 instructs the measurement unit 12 to measure the communication quality in response to receiving operation information for measuring the communication quality from the input unit 11 or at a predetermined timing by the program. To do. The measurement control unit 21 receives the measurement value of the measurement performed by the measurement unit 12, and the measurement value, measurement date information indicating the date and time when the measurement was performed, and the position of the terminal device 10 when the measurement was performed The log which matched the latitude information and longitude information which show is produced | generated.

  The measurement date and time information is acquired by a timekeeping unit (not shown), and the latitude information and longitude information are acquired by a positioning unit (not shown) such as GPS (Global Positioning System). The log includes terminal information indicating the terminal type of the terminal device 10, line type information indicating the network to be measured, communication carrier information indicating a communication carrier, and a base station indicating a base station such as a base station number. Information etc. may be included. The terminal information is stored in advance in storage means (not shown).

  The measurement control unit 21 transmits the generated log to the server device 30 via the transmission / reception unit 13. For example, the measurement control unit 21 transmits a log to the server device 30 every time measurement is performed by the measurement unit 12. The measurement control unit 21 may store the generated logs in the storage unit in the terminal device 10 and collectively transmit the logs stored in the storage unit to the server device 30 at a predetermined timing.

  The range determination unit 22 functions as a range determination unit that determines a target range. The range determination unit 22 determines the target range in response to receiving operation information for displaying the communication quality information of the target range from the input unit 11 or at a predetermined timing by the program. For example, the range determination unit 22 determines the range of the map displayed on the display unit 14 as the target range. The range determination unit 22 may determine a range specified by the user via the input unit 11 as a target range. As a specific example, the range determination unit 22 may determine a range surrounded by a frame on the map displayed on the display unit 14 as a target range.

  The range determination unit 22 transmits target range information for specifying the determined target range to the server device 30 via the transmission / reception unit 13. As the target range information, when the target range is a rectangle, for example, latitude information and longitude information indicating the latitude and longitude of the vertex of the target range, or latitude information indicating the longitude and longitude of the center position of the target range And longitude information are used. Further, when a range ID or the like for specifying a range is determined in advance as a common rule with the server device 30, a range ID or the like may be used as target range information. The range determination unit 22 may include the zoom rate information indicating the zoom rate acquired by the zoom rate acquisition unit 23 in the target range information and transmit it to the server device 30.

  The zoom rate acquisition unit 23 functions as a zoom rate acquisition unit that acquires the zoom rate of the map displayed on the display unit 14. The zoom rate acquisition unit 23 acquires the zoom rate according to an instruction from the range determination unit 22 and transmits zoom rate information indicating the acquired zoom rate to the range determination unit 22.

  The statistical value calculation unit 24 functions as a statistical value calculation unit that calculates the statistical value of the target range based on the mesh statistical value acquired by the mesh statistical value acquisition unit 44 described later. Here, the mesh statistical value is a statistical value related to communication quality in the mesh, and the mesh is a section obtained by dividing an area on the map. The statistical value calculation unit 24 receives mesh statistical value information from the server device 30 via the transmission / reception unit 13. A method for calculating the statistical value of the target range will be described later. Then, the statistical value calculation unit 24 transmits the calculated statistical value of the target range to the display unit 14.

  Next, the functional configuration of the server device 30 will be described. Functionally, the server device 30 includes a transmission / reception unit 31, a log storage unit 32 (log storage unit), a mesh statistical value storage unit 33 (mesh statistical value storage unit), and a processing unit 34. The server device 30 is configured by hardware shown in FIG.

  FIG. 3 is a hardware configuration diagram of the server device 30. As shown in FIG. 3, the server device 30 physically includes one or more CPUs 301, a RAM 302 and a ROM 303 that are main storage devices, a communication module 304 that is a data transmission / reception device, and an auxiliary storage device such as a hard disk. It is comprised as a computer provided with hardware, such as 305. Each function of the server device 30 in FIG. 1 is such that the communication module 304 is controlled under the control of the CPU 301 by loading one or more predetermined computer software on the hardware such as the CPU 301 and the RAM 302 shown in FIG. This is realized by operating and reading and writing data in the RAM 302 and the auxiliary storage device 305.

  Returning to FIG. 1, the functional configuration of the server device 30 will be described in detail. The transmission / reception unit 31 functions as a transmission / reception unit that transmits various types of information from the processing unit 34 to the terminal device 10 via the network NW and receives various types of information from the terminal device 10 via the network NW. The transmission / reception unit 31 transmits the received information to the processing unit 34.

  The log storage unit 32 functions as a log storage unit that stores a log generated by the measurement control unit 21. The log storage unit 32 stores a log transmitted by one or more terminal devices 10. The log includes log ID that is identification information for uniquely identifying the log, measurement date and time information that is information indicating the date and time when measurement by the measurement unit 12 was performed, and measurement by the measurement unit 12 At least latitude information and longitude information that are information indicating the latitude and longitude, respectively, and the measurement value measured by the measurement unit 12 are included.

  FIG. 4 is a diagram illustrating an example of a log stored in the log storage unit 32. The log stored in the log storage unit 32 illustrated in FIG. 4 includes a log ID, measurement date / time information, latitude information, longitude information, measurement values, terminal information, and line type information. The terminal information is information (for example, model name, product number, etc.) indicating the terminal device 10 that has been measured by the measurement unit 12. The terminal information may be information (for example, OS information, OS version, etc.) indicating software installed in the terminal device 10 that has been measured by the measurement unit 12. The line type information is information indicating a network in which measurement by the measurement unit 12 is performed, and is, for example, “LTE (Long Term Evolution)”, “HSDPA (High Speed Downlink Packet Access)”, or the like.

  In this example, the log with the log ID “0001” is recorded at a position of latitude 35.112 degrees and longitude 140.221 degrees on May 29, 2014 at 13:20 on the terminal device 10 whose terminal model is SO-02F. The LTE communication speed was measured every minute, indicating that the measured value was 50.12 Mbps.

  The mesh statistical value storage unit 33 functions as a mesh statistical value storage unit that defines a mesh group including a plurality of meshes obtained by dividing an area on a map and stores mesh statistical values in association with each mesh. . Each mesh is obtained, for example, by dividing an area on a map for each predetermined latitude and longitude. The mesh statistic storage unit 33 includes a mesh ID for uniquely identifying a mesh, information for defining a range of the mesh identified by the mesh ID, a mesh statistic for the mesh identified by the mesh ID, Are managed in association with each other.

  The mesh statistical value storage unit 33 defines a plurality of mesh groups according to the division roughness for dividing the area on the map in the mesh management table, and sets each mesh group to the zoom rate of the map displayed on the display unit 14. You may associate. The division roughness is, for example, the size of latitude and longitude, which is a unit for dividing an area on a map. That is, each mesh group is associated with the size of latitude and longitude, which is a unit for dividing the area on the map, and obtained by dividing the area on the map according to the magnitude of the associated latitude and longitude. Containing mesh. Then, as the zoom rate increases, the zoom rate and the mesh group are associated with each other so that the division roughness decreases (that is, the range of one mesh decreases).

  FIG. 5 is a diagram illustrating an example of a mesh management table stored in the mesh statistical value storage unit 33. The mesh management table shown in FIG. 5 stores zoom rate information, mesh ID, center latitude information, center longitude information, and mesh statistics in association with each other. The zoom rate information is information indicating the zoom rate of the map displayed on the display unit 14. The center latitude information and the center longitude information are information indicating the latitude and longitude of the center position of the mesh specified by the mesh ID, respectively. In this example, the sizes of latitude and longitude, which are units for dividing the mesh, are determined in advance according to the zoom rate. Therefore, the mesh range can be specified by the latitude and longitude of the center position of the mesh.

  In this example, for example, mesh groups of meshes identified by mesh IDs “20001”, “20002”,. The mesh identified by the mesh ID “20001” has a central latitude of 35.113 degrees, a central longitude of 140.002 degrees, and a mesh statistical value of 19.5 Mbps. The mesh identified by the mesh ID “200002” has a central latitude of 35.115 degrees, a central longitude of 140.004 degrees, and a mesh statistical value of 22.6 Mbps. Thus, at a zoom ratio of 2 times, an area on the map is divided every 0.002 degrees of latitude, and a mesh divided every 0.002 degrees of longitude is defined. In this example, the mesh management table has zoom rate information, but the mesh management table may be divided for each zoom rate. Further, the mesh management tables divided for each zoom rate may be stored in different storage units.

  The processing unit 34 functions as a processing unit that controls the operation of the server device 30. The processing unit 34 includes a log collection unit 41, a mesh statistical value calculation unit 42 (mesh statistical value calculation unit), a mesh selection unit 43 (mesh selection unit), and a mesh statistical value acquisition unit 44 (mesh statistical value acquisition unit). And comprising.

  The log collection unit 41 collects logs received from the terminal device 10 via the transmission / reception unit 31 and stores the collected logs in the log storage unit 32.

  Based on the log stored in the log storage unit 32, the mesh statistical value calculation unit 42 calculates the mesh statistical value of the mesh defined in the mesh statistical value storage unit 33, and stores the calculated mesh statistical value in the mesh statistical value It functions as a mesh statistical value calculation means stored in the unit 33. Specifically, the mesh statistical value calculation unit 42 stores, in the log storage unit 32, a log having latitude information and longitude information indicating the position in the mesh for each mesh defined in the mesh statistical value storage unit 33. Extract from the log. Then, the mesh statistical value calculation unit 42 calculates the mesh statistical value of the mesh from the extracted measurement value of the log. For example, the mesh statistical value calculation unit 42 sets the average value of the extracted measurement values of the logs as the mesh statistical value.

  The mesh statistical value calculation unit 42 calculates the mesh statistical value at a predetermined timing, and updates the mesh statistical value stored in the mesh statistical value storage unit 33. Further, the mesh statistical value calculation unit 42 uses the log stored in the log storage unit 32 since the previous calculation of the mesh statistical value and the mesh statistical value stored in the mesh statistical value storage unit 33, The mesh statistics may be updated.

  The mesh selection unit 43 functions as a mesh selection unit that selects a mesh included in the target range determined by the terminal device 10. The mesh selection unit 43 receives target range information from the terminal device 10 via the transmission / reception unit 31. The mesh selection unit 43 determines which mesh among meshes defined in the mesh statistical value storage unit 33 is included in the target range specified by the received target range information. And the mesh selection part 43 selects the mesh determined to be included in the target range. Here, the mesh included in the target range means a mesh in which at least a part of the mesh is included in the target range. The mesh selection unit 43 transmits the mesh ID of the selected mesh to the mesh statistical value acquisition unit 44.

  In the mesh statistical value storage unit 33, when a plurality of mesh groups corresponding to the division roughness for dividing the region on the map is defined, the mesh selection unit 43 sets the zoom rate acquired by the zoom rate acquisition unit 23 to the zoom rate. A mesh including the target range is selected from the meshes of the corresponding mesh group. That is, the mesh selection unit 43 acquires the zoom rate indicated by the zoom rate information included in the received target range information, and selects the mesh group corresponding to the acquired zoom rate in the mesh management table of the mesh statistical value storage unit 33. To do. Then, the mesh selection unit 43 determines which mesh among meshes included in the selected mesh group is included in the target range specified by the received target range information. And the mesh selection part 43 selects the mesh determined to be included in the target range.

  The mesh statistical value acquisition unit 44 functions as a mesh statistical value acquisition unit that acquires the mesh statistical value of the mesh selected by the mesh selection unit 43 from the mesh statistical value storage unit 33. More specifically, when the mesh statistical value acquisition unit 44 receives a mesh ID from the mesh selection unit 43, the mesh statistical value acquisition unit 44 obtains the mesh statistical value of the mesh corresponding to the received mesh ID from the mesh management table of the mesh statistical value storage unit 33. get. Then, the mesh statistical value acquisition unit 44 transmits mesh statistical value information including the acquired mesh statistical value to the terminal device 10 via the transmission / reception unit 31. The mesh statistical value information may include center latitude information and center longitude information of the mesh corresponding to the mesh statistical value. Further, the mesh statistical value information may include information that can specify a mesh range corresponding to the mesh statistical value.

  Next, the statistical value calculation method for the target range performed by the statistical value calculation unit 24 will be described. For example, the statistical value calculation unit 24 calculates the statistical value of the target range by the following first to third statistical value calculation methods.

(First statistical value calculation method)
The statistical value calculation unit 24 calculates an average value of mesh statistical values included in the mesh statistical value information received from the server device 30. Then, the statistical value calculation unit 24 sets the average value of the mesh statistical values as the statistical value of the target range. For example, when the mesh statistical value information received from the server device 30 includes N mesh statistical values A ₁ , A ₂ ,..., A _N , the target range is expressed by the following equation (1). Statistical values are calculated.

(Second statistical value calculation method)
The statistical value calculation unit 24 calculates an average value by weighting the mesh statistical value included in the mesh statistical value information received from the server device 30 according to the distance between the center of the mesh and the center of the target range. Then, the statistical value calculation unit 24 sets the obtained value as the statistical value of the target range. More specifically, for example, the statistical value calculation unit 24 calculates, from the center latitude information and the center longitude information of the mesh included in the mesh statistical information, the mesh center corresponding to each mesh statistical value and the center of the target range. Calculate the distance.

For example, as shown in FIG. 6, if the mesh _{M 1} ~ mesh _{M 6} is included in the scope T, respectively and scope T of the center _{C 1} ~ center _{C 6} mesh _{M 1} ~ mesh _{M 6} calculates the distance _{R 1} ~ distance _{R 6} of the center _{C T.} Then, the statistical value calculation unit 24 weights each mesh statistical value so that the weight of the mesh statistical value of the mesh becomes larger as the center of the mesh is closer to the center of the target range. For example, the statistical value calculation unit 24 multiplies the mesh statistical value by the reciprocal of the distance between the center of the mesh and the center of the target range. Then, the statistical value calculation unit 24 divides the multiplication result by the sum of the reciprocal of the distance between the center of each mesh and the center of the target range, and calculates the sum of the division results as the statistical value of the target range.

For example, the mesh statistics information received from the server apparatus _{30, A 1, A 2,} ···, are included the N mesh statistics A _N, and the center of the mesh corresponding to the mesh statistics If the distance between the center of the target range was _{R 1, R 2, ···,} R N, statistics target range is calculated by the following equation (2).

(Third statistical value calculation method)
The statistical value calculation unit 24 calculates an average value by weighting the mesh statistical value included in the mesh statistical value information received from the server device 30 according to the area ratio of the mesh included in the target range. Then, the statistical value calculation unit 24 sets the obtained value as the statistical value of the target range. More specifically, for example, the statistical value calculation unit 24 determines the area of the portion included in the target range among the meshes corresponding to each mesh statistical value from information that can identify the range of the mesh included in the mesh statistical value information. Is calculated. Then, the statistical value calculation unit 24 calculates the area ratio of the area of the portion included in the target range to the area of the mesh. When the entire mesh is included in the target range, the area ratio of the mesh is 1.

For example, the area ratio r _{1 ~} area of the portion contained, if the mesh M _{1 ~} mesh M ₆ is included in the scope T, the target range T of the mesh M _{1 ~} mesh M ₆ as shown in FIG. 7 calculating the ratio _{r 6.} Then, the statistical value calculation unit 24 weights each mesh statistical value so that the larger the area ratio of the portion included in the target range, the larger the weight of the mesh statistical value of that mesh. For example, the statistical value calculation unit 24 multiplies the mesh statistical value by the area ratio of the portion included in the target range of each mesh. Then, the statistical value calculation unit 24 calculates the average value of the multiplication results as the statistical value of the target range.

For example, the mesh statistical value information received from the server device 30 includes N mesh statistical values A ₁ , A ₂ ,..., A _N , and the mesh target range corresponding to each mesh statistical value area ratio _{r 1,} r 2, contained in ..., indicating an _{r N,} statistics target range is calculated by the following equation (3).

  Next, a log collection process executed by the communication quality information display system 1 will be described with reference to FIG. FIG. 8 is a sequence diagram showing log collection processing executed by the communication quality information display system 1. The process illustrated in FIG. 8 is started in response to, for example, an operation for measuring communication quality in the terminal device 10 or at a predetermined timing by a program.

  First, the measurement control unit 21 of the terminal apparatus 10 instructs the measurement unit 12 to perform communication quality measurement. And the measurement part 12 measures according to the instruction | indication of the measurement control part 21, and transmits a measured value to the measurement control part 21 (step S11). Subsequently, the measurement control unit 21 receives the measurement value of the measurement performed by the measurement unit 12, the measurement value, the measurement date information indicating the date and time when the measurement was performed, and the terminal device when the measurement was performed A log that associates at least latitude information and longitude information indicating 10 positions is generated. And the measurement control part 21 transmits the produced | generated log to the server apparatus 30 via the transmission / reception part 13 (step S12). Here, for example, the measurement control unit 21 may transmit a log to the server device 30 every time measurement is performed by the measurement unit 12, or store the generated log in a storage unit in the terminal device 10. Logs stored in the storage unit may be collected and transmitted to the server device 30 at a predetermined timing.

  Next, the log collection unit 41 of the server device 30 receives a log from the terminal device 10 via the transmission / reception unit 31 (step S13). Then, the log collection unit 41 collects the logs received by the transmission / reception unit 31, and stores the collected logs in the log storage unit 32 (step S14). Subsequently, based on the log stored in the log storage unit 32, the mesh statistical value calculation unit 42 calculates the mesh statistical value of the mesh defined in the mesh statistical value storage unit 33 at a predetermined timing (step) S15). Then, the mesh statistical value calculation unit 42 stores the calculated mesh statistical value in the mesh management table of the mesh statistical value storage unit 33 (step S16). In this way, the log collection process is terminated.

  Next, communication quality information display processing executed by the communication quality information display system 1 will be described with reference to FIG. FIG. 9 is a sequence diagram illustrating communication quality information display processing executed by the communication quality information display system 1. The process shown in FIG. 9 is started, for example, in response to an operation for displaying the communication quality information of the target range in the terminal device 10 or at a predetermined timing by the program.

  First, the range determination unit 22 of the terminal device 10 determines a target range (step S21, range determination step). Here, the range determination unit 22 may determine, for example, the range of the map displayed on the display unit 14 as the target range, or determine the range specified by the user via the input unit 11 as the target range. May be. Then, the range determination unit 22 transmits target range information for specifying the determined target range to the server device 30 via the transmission / reception unit 13 (step S22). The target range information may further include zoom rate information acquired by the zoom rate acquisition unit 23.

  Next, the mesh selection unit 43 of the server device 30 receives the target range information from the terminal device 10 via the transmission / reception unit 31 (step S23). Then, the mesh selection unit 43 determines which mesh among meshes defined in the mesh statistical value storage unit 33 is included in the target range specified by the received target range information. Note that when the mesh statistical value storage unit 33 defines a plurality of mesh groups corresponding to the division roughness for dividing the area on the map, the mesh selection unit 43 may acquire the zoom acquired by the zoom rate acquisition unit 23. A mesh including the target range is selected from meshes of the mesh group corresponding to the rate. That is, the mesh selection unit 43 acquires the zoom rate indicated by the zoom rate information included in the received target range information, and selects the mesh group corresponding to the acquired zoom rate in the mesh management table of the mesh statistical value storage unit 33. To do. Then, the mesh selection unit 43 determines which mesh among meshes included in the selected mesh group is included in the target range specified by the received target range information.

  Then, the mesh selection unit 43 selects a mesh determined to be included in the target range, and transmits the mesh ID of the selected mesh to the mesh statistical value acquisition unit 44 (step S24, mesh selection step). Subsequently, when receiving the mesh ID from the mesh selecting unit 43, the mesh statistical value acquiring unit 44 acquires the mesh statistical value of the mesh corresponding to the received mesh ID from the mesh management table of the mesh statistical value storage unit 33 ( Step S25, mesh statistical value acquisition step). And the mesh statistics value acquisition part 44 transmits the mesh statistics value information containing the acquired mesh statistics value to the terminal device 10 via the transmission / reception part 31 (step S26). The mesh statistical value information may further include information such as center latitude information and center longitude information of the mesh corresponding to the mesh statistical value, information capable of specifying the mesh range corresponding to the mesh statistical value, and the like.

  Next, the statistical value calculation unit 24 of the terminal device 10 receives mesh statistical value information from the server device 30 via the transmission / reception unit 13 (step S27). Then, the statistical value calculation unit 24 calculates the statistical value of the target range by any one of the above-described first to third statistical value calculation methods (step S28, statistical value calculation step). Subsequently, the display unit 14 displays the communication quality information of the target range based on the statistical value calculated by the statistical value calculation unit 24 (step S29, display step). For example, the display unit 14 may display a statistical value as communication quality information, or may display information regarding communication quality according to the statistical value. In this way, the communication quality information display process is terminated.

  Next, effects of the communication quality information display system 1 and the communication quality information display method will be described. According to the communication quality information display system 1 and the communication quality information display method, the mesh statistics value is stored in the mesh statistics value storage unit 33 in the server device 30 in association with each mesh, and is determined by the terminal device 10. The mesh included in the target range is selected by the mesh selection unit 43, and the mesh statistical value of the selected mesh is acquired from the mesh statistical value storage unit 33 by the mesh statistical value acquisition unit 44. In the terminal device 10, the statistical value of the target range is calculated by the statistical value calculation unit 24 using the mesh statistical value acquired in the server device 30, and the communication quality information of the target range is obtained based on the calculated statistical value. Displayed by the display unit 14. Accordingly, the statistical value of the target range can be calculated using the mesh statistical value calculated in advance in the server device 30 without using the measurement value included in the log acquired within the target range. For this reason, since it is not necessary to process a huge amount of logs, the calculation of the statistical value of the target range can be speeded up. As a result, it is possible to increase the display speed of the communication quality information and improve usability.

  In addition, the mesh statistical value storage unit 33 may define a plurality of mesh groups corresponding to the division roughness for dividing the area on the map in association with the zoom rate of the map displayed on the display unit 14. . In this case, the mesh selection unit 43 selects a mesh included in the target range from the meshes of the mesh group corresponding to the zoom rate acquired by the zoom rate acquisition unit 23. According to this, the statistical value of the target range is calculated using the mesh statistical value of the mesh with the division roughness corresponding to the zoom rate of the map displayed on the terminal device 10. For this reason, according to the zoom rate of the map currently displayed in the terminal device 10, the number of the mesh statistical values used for calculation of the statistical value of the target range can be adjusted. For example, even when the zoom rate of the map displayed on the terminal device 10 is small, it is possible to suppress the number of mesh statistical values used for calculating the statistical value of the target range from becoming an enormous amount. Can be speeded up. As a result, even if the zoom rate of the map displayed on the terminal device 10 is changed, the display of communication quality information can be speeded up. In addition, when the zoom rate of the map displayed on the terminal device 10 is large, it is possible to suppress the number of mesh statistics values from becoming too small, and it is possible to suppress a decrease in the calculation accuracy of the statistics values of the target range. Become.

  Further, the mesh statistical value of the mesh is considered to change with time. On the other hand, the measurement unit 12 of the terminal device 10 performs measurement related to the communication quality of the terminal device 10, and the measurement control unit 21 obtains the measurement value of the measurement performed by the measurement unit 12 and the position information of the terminal device 10. Generate a log containing. The log storage unit 32 of the server device 30 stores the log generated by the measurement control unit 21, and the mesh statistical value calculation unit 42 stores mesh statistical values based on the log stored in the log storage unit 32. The mesh statistical value of the mesh defined in the unit 33 is calculated, and the calculated mesh statistical value is stored in the mesh statistical value storage unit 33. According to this, since the mesh statistical value can be updated with the measured value of the terminal device 10, it is possible to improve the calculation accuracy of the statistical value of the target range.

  The range determining unit 22 may determine the map range displayed on the display unit 14 as the target range. In this case, it is possible to speed up the display of the communication quality information in the range of the map displayed on the display unit 14, that is, the browsing range.

  Moreover, the range determination part 22 may determine the range designated by the user as an object range. In this case, it is possible to speed up the display of communication quality information in a range desired by the user.

  In addition, this invention is not limited to embodiment mentioned above. For example, the mesh statistical value calculation unit 42 calculates the mesh statistical value of each mesh for each model of the terminal device 10 included in the log of the log storage unit 32, and the mesh management table of the mesh statistical value storage unit 33 further includes Terminal information indicating the model of the terminal device 10 may be included, and the mesh statistical value of each mesh may be managed for each model of the terminal device 10. In this case, the terminal device 10 includes the terminal information indicating the model of the terminal device 10 in the target range information and transmits the target range information to the server device 30. Then, the mesh statistical value acquisition unit 44 obtains a mesh statistical value corresponding to the model of the terminal device 10 among the mesh statistical values of the mesh selected by the mesh selecting unit 43 from the mesh management table of the mesh statistical value storage unit 33. Acquired and included in the mesh statistics information. According to this, even when the statistical value regarding the communication quality differs for each model of the terminal device 10, the statistical value of the target range can be calculated according to the model of the terminal device 10. For this reason, the calculation accuracy of the statistical value of the target range can be improved, and the reliability of the communication quality information of the target range can be improved.

  Further, in the terminal device 10, when the operation for displaying the communication quality information of the target range is continuously performed, the target range determined by the range determination unit 22 is the same as the target range that was the previous display target. In the case where some or all of them overlap, the mesh statistics value acquisition unit 44 may include an untransmitted mesh statistics value other than the transmitted mesh statistics value in the mesh statistics value information and transmit it. In this case, the information amount of mesh statistical value information can be reduced.

  Further, the terminal device 10 may include the load information indicating the processing load of the terminal device 10 in the target range information and transmit it to the server device 30. The mesh statistical value storage unit 33 may define a plurality of mesh groups according to the division roughness for dividing the area on the map in the mesh management table, and associate each mesh group with the processing load of the terminal device 10. . For example, as the processing load of the terminal device 10 increases, the division roughness increases (that is, the range of one mesh increases). In this case, the mesh selection unit 43 selects a mesh including the target range from the meshes of the mesh group corresponding to the processing load of the terminal device 10. That is, the mesh selection unit 43 acquires the processing load indicated by the load information included in the received target range information, and selects a mesh group corresponding to the acquired processing load in the mesh management table of the mesh statistical value storage unit 33. . According to this, according to the processing load of the terminal device 10, the number of mesh statistical values used for calculation of the statistical value of the target range can be adjusted. For example, when the processing load of the terminal device 10 is large, the number of mesh statistical values used for calculating the statistical value of the target range can be reduced, and the calculation of the statistical value of the target range can be suppressed from being delayed. As a result, it is possible to suppress delay in displaying communication quality information.

  DESCRIPTION OF SYMBOLS 1 ... Communication quality information display system, 10 ... Terminal device, 12 ... Measurement part (measurement means), 14 ... Display part (display means), 21 ... Measurement control part (log generation means), 22 ... Range determination part (range determination) Means), 23 ... zoom rate acquisition unit (zoom rate acquisition means), 24 ... statistical value calculation unit (statistical value calculation means), 30 ... server device, 32 ... log storage unit (log storage means), 33 ... mesh statistical value Storage unit (mesh statistical value storage unit), 41... Log collection unit, 42... Mesh statistical value calculation unit (mesh statistical value calculation unit), 43 ... mesh selection unit (mesh selection unit), 44 ... mesh statistical value acquisition unit ( Mesh statistics value acquisition means).

Claims (9)

A communication quality information display system that includes a terminal device and a server device, and displays communication quality information related to communication quality in a target range on the terminal device,
The server device
A mesh statistical value storing means for defining a mesh group including a plurality of meshes obtained by dividing an area on a map, and storing a mesh statistical value that is a statistical value related to communication quality in the mesh in association with each of the meshes; ,
Mesh selecting means for selecting a mesh included in the target range determined in the terminal device;
Mesh statistical value acquisition means for acquiring the mesh statistical value of the mesh selected by the mesh selecting means from the mesh statistical value storage means;
With
The terminal device
Range determining means for determining the target range;
Based on the mesh statistical value acquired by the mesh statistical value acquisition unit, a statistical value calculation unit that calculates a statistical value of the target range;
Display means for displaying communication quality information of the target range based on the statistical value calculated by the statistical value calculating means;
A communication quality information display system. The display means displays a map of a predetermined range,
The terminal device further includes zoom rate acquisition means for acquiring the zoom rate of the map displayed on the display means,
The mesh statistical value storage means defines a plurality of mesh groups corresponding to the division roughness for dividing the area on the map in association with the zoom rate of the map displayed on the display means,
The communication quality information display system according to claim 1, wherein the mesh selection unit selects a mesh included in the target range from meshes of a mesh group corresponding to the zoom rate acquired by the zoom rate acquisition unit. The terminal device
Measuring means for measuring the communication quality of the terminal device;
Log generation means for generating a log including the measurement value of the measurement performed by the measurement means and the position information of the terminal device;
Further comprising
The server device
Log storage means for storing a log generated by the log generation means;
Based on the log stored in the log storage unit, the mesh statistical value of the mesh defined in the mesh statistical value storage unit is calculated, and the calculated mesh statistical value is stored in the mesh statistical value storage unit A calculation means;
The communication quality information display system according to claim 1 or 2, further comprising:   The communication quality information display system according to any one of claims 1 to 3, wherein the range determining unit determines a range of a map displayed on the display unit as the target range.   The communication quality information display system according to any one of claims 1 to 3, wherein the range determination unit determines a range specified by a user as the target range. A terminal device that displays communication quality information related to communication quality in a target range,
A range determining means for determining a target range;
Obtaining a mesh statistical value that is a statistical value related to communication quality of a mesh included in the target range determined by the range determining unit among a plurality of meshes obtained by dividing an area on a map, and acquiring the mesh statistics A statistical value calculation means for calculating a statistical value of the target range based on the value;
Display means for displaying communication quality information of the target range based on the statistical value calculated by the statistical value calculating means;
A terminal device. A server device that provides information for displaying communication quality information related to communication quality in a target range on a terminal device,
A mesh statistical value storing means for defining a mesh group including a plurality of meshes obtained by dividing an area on a map, and storing a mesh statistical value that is a statistical value related to communication quality in the mesh in association with each of the meshes; ,
Mesh selecting means for selecting a mesh included in the target range determined in the terminal device;
Mesh statistics value acquisition means for acquiring the mesh statistics value of the mesh selected by the mesh selection means from the mesh statistics value storage means and transmitting it to the terminal device;
A server device comprising: A mesh statistic that defines a terminal group and a mesh group including a plurality of meshes obtained by dividing an area on a map, and stores a mesh statistic that is a statistical value related to communication quality in the mesh in association with each of the meshes A communication quality information display method of a communication quality information display system including a server device comprising value storage means,
A range determining step in which the terminal device determines a target range;
A mesh selection step in which the server device selects a mesh included in the target range determined in the range determination step;
The server apparatus acquires a mesh statistical value of the mesh selected in the mesh selecting step from the mesh statistical value storage means; and
A statistical value calculating step in which the terminal device calculates a statistical value of the target range based on the mesh statistical value acquired in the mesh statistical value acquiring step;
A display step in which the terminal device displays communication quality information of the target range based on the statistical value calculated in the statistical value calculating step;
A communication quality information display method comprising: Computer
Range determination means for determining the target range;
Obtaining a mesh statistical value that is a statistical value related to communication quality of a mesh included in the target range determined by the range determining unit among a plurality of meshes obtained by dividing an area on a map, and acquiring the mesh statistics A statistical value calculating means for calculating a statistical value of the target range based on the value; and
Display means for displaying communication quality information of the target range based on the statistical value calculated by the statistical value calculating means;
Communication quality information display program to function as

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