Measuring equipment

Abstract

To provide a measuring device capable of displaying a measurement result of communication quality for each communication related to the measurement of communication quality between a terminal device and a communication device.SOLUTION: A measuring device 10 includes: a communication unit 110 that transmits and receives information to / from a plurality of terminal devices and a plurality of communication devices that communicate with the terminal devices; a measurement instruction unit 101 that instructs a terminal device or a communication device to perform communication related to communication quality measurement between the terminal device and the communication device, based on combination information 201 indicating combinations of communication between the plurality of terminal devices and the plurality of communication devices that communicate with the terminal devices; and a display unit 120 that displays a measurement image showing a communication state between the terminal device and the communication device that perform communication related to communication quality measurement according to the instruction of the measurement instruction unit 101.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a measurement device. [Background technology]

[0002] BACKGROUND ART Conventionally, there is known a technology relating to a wireless environment measuring system that performs communication relating to measurement of communication quality between a terminal device and a communication device that are present within the communication area of ​​a wireless network (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-005009 Summary of the Invention [Problem to be solved by the invention]

[0004] In the wireless environment measuring system disclosed in Patent Document 1, the measurement result of communication quality including the presence or absence of a communication abnormality is displayed after the communication related to the measurement of communication quality is completed. In other words, in the wireless environment measuring system disclosed in Patent Document 1, it may take time until all communications related to the measurement of communication quality are completed before it is possible to check the presence or absence of a communication abnormality within the communication area. [Means for solving the problem]

[0005] A measurement device that achieves the above-mentioned objective is characterized by comprising: a communication unit that transmits and receives information to and from multiple terminal devices and multiple communication devices that communicate with the terminal devices; a measurement instruction unit that instructs the terminal device or the communication device via the communication unit to communicate related to the measurement of communication quality between the terminal device and the communication device based on combination information that indicates a combination of communications between the multiple terminal devices and multiple communication devices that communicate with the terminal devices; the terminal device that performs communication related to the measurement of communication quality at the instruction of the measurement instruction unit based on the measurement results of the communication quality received from the terminal device and the communication device via the communication unit; an image generation unit that generates a measurement image showing the communication status with the communication device; and a display unit that displays the measurement image.

[0006] According to this configuration, the measurement device can display the measurement results of communication quality for each communication related to the measurement of communication quality between the terminal device and the communication device. In the above-described measuring device, the image generating section may cause the display section to display, as the measurement image, a list image showing a list of the terminal device and the communication device that communicate in response to an instruction from the measurement instruction section.

[0007] According to this configuration, the display unit can simply display the measurement result of the communication quality for each communication related to the measurement of the communication quality between the terminal device and the communication device. In the above-mentioned measuring device, the image generation unit may display, as the measurement image on the display unit, a line image connecting the terminal device and the communication device that communicate at the instruction of the measurement instruction unit, superimposed on a map image showing the locations where the multiple terminal devices and the multiple communication devices are installed.

[0008] According to this configuration, the display unit can display the measurement results of the communication quality in correspondence with the positions where the terminal device and the communication device are installed. The above-mentioned measurement device further includes a judgment unit that judges whether the measurement of communication quality between the terminal device and the communication device has been completed properly based on whether information indicating that the measurement has been completed is received from the terminal device or the communication device, and if the judgment unit determines that the measurement has not been completed properly, the image generation unit may display an alert image related to the communication status between the corresponding terminal device and the communication device on the display unit.

[0009] According to this configuration, the display unit can notify the user of the communication status using an alert image relating to the communication status between the terminal device for which measurement has not been properly completed and the communication device. The above-mentioned measurement device further includes a judgment unit that judges whether the measurement of communication quality between the terminal device and the communication device has been completed properly based on whether information indicating that the measurement has been completed is received from the terminal device or the communication device, and if the judgment unit judges that the measurement has not been completed properly, the measurement instruction unit may stop communication related to the communication measurement and instruct communication to be performed by a terminal device or a communication device among the combinations indicated in the combination information that has not yet performed communication related to the communication quality measurement.

[0010] With this configuration, even if the measurement of communication quality between a terminal device and a communication device has not been properly completed, the measurement device can stop communication and have the terminal device and communication device that have not yet performed communication related to the measurement of communication quality perform the measurement, thereby enabling efficient measurement.

[0011] In the above-described measuring device, the image generating unit may cause the display unit to display the measurement image in a different display mode depending on the measurement result of the communication quality. According to this configuration, the display unit can notify the user of the measurement results in a visually easy-to-understand manner. [Effects of the Invention]

[0012] According to the present invention, the measurement device can display the measurement results of communication quality for each communication related to the measurement of communication quality between the terminal device and the communication device. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 illustrates an example of a configuration of a wireless network system. [Figure 2] FIG. 1 is a diagram illustrating an example of the configuration of a measurement device. [Figure 3] FIG. 10 is a diagram showing an example of the contents of combination information. [Figure 4] FIG. 10 is a diagram illustrating an example of a list image. [Figure 5] 10 is a flowchart showing an example of the operation of the measurement device. [Figure 6] FIG. 1 is a diagram illustrating an example of the configuration of a measurement device. [Figure 7] FIG. 2 is a diagram illustrating an example of a map image. [Figure 8] FIG. 10 is a diagram illustrating an example of a line image. [Figure 9] FIG. 10 is a diagram illustrating an example of an alert image. [Figure 10] FIG. 10 is a diagram showing an example of a display mode of an alert image. [Figure 11] FIG. 10 is a diagram showing an example of a display mode of a line image. DETAILED DESCRIPTION OF THE INVENTION

[0014] <Embodiment> [Overall configuration] Hereinafter, an embodiment embodying a measurement device will be described with reference to the drawings. As shown in Fig. 1, a wireless network system 1 includes a measurement device 10, a plurality of access points 20, and a plurality of terminal devices 30. The wireless network system 1 of this embodiment includes four access points 20, access points 20-1 to 20-4, and three terminal devices 30, terminal devices 30-1 to 30-3.

[0015] The measurement device 10 and the terminal device 30 can communicate with each other via a wireless network provided by the access point 20. Examples of the wireless network provided by the access point 20 include Wi-Fi, Bluetooth (registered trademark), and Zigbee (registered trademark). Note that these wireless networks are merely examples and are not limited to these. Specifically, the measurement device 10 can communicate with the terminal devices 30-1 and 30-2 via the wireless network provided by the access point 20-1. Furthermore, the measurement device 10 can communicate with the terminal device 30-3 via the wireless network provided by the access point 20-2. In the following description, it is assumed that the access point 20 has a layer 3 routing function. The access point 20 is an example of a "communication device."

[0016] Furthermore, some of the multiple access points 20 may be connected to the measurement device 10 so that they can communicate with each other via a wired network. In this example, of the multiple access points 20, access points 20-1 and 20-2 are connected to the measurement device 10 via a wired network. Meanwhile, access point 20-3 and the measurement device 10 can communicate with each other via the wireless network provided by access point 20-1, and with terminal device 30-1 or terminal device 30-2 via the wireless network provided by access point 20-3. Furthermore, access point 20-4 and the measurement device 10 can communicate with each other via the wireless network provided by access point 20-2, and with terminal device 30-3 via the wireless network provided by access point 20-4.

[0017] The measurement device 10 instructs the access point 20 or the terminal device 30 to perform communication related to measurement of communication quality between the terminal device 30 and the access point 20. Specifically, the measurement device 10 transmits information including an instruction to start measurement to the access point 20 that provides a wireless network with which the measurement device 10 can communicate. The information indicating the terminal device 30 and the access point 20 to be measured is, for example, the Internet Protocol (IP) address or Media Access Control (MAC) address of the terminal device 30 or the access point 20. In the example shown in FIG. 1 , the measurement device 10 transmits information to the access points 20-1 and 20-2 instructing the terminal device 30-1 to perform communication related to measurement of communication quality between the terminal device 30-1 and the access point 20-3. Information indicating the terminal device 30-1 to be measured is recorded in the routing table of the access point 20-1, but not recorded in the access point 20-2. For this reason, the access point 20-1 transmits to the terminal device 30-1 information including information indicating the terminal device 30 to be measured and the access point 20 to be measured, and an instruction to start measurement.

[0018] Based on the received information, the terminal device 30-1 starts communication related to the measurement of communication quality between the terminal device 30-1 and the access point 20-3. For example, the terminal device 30-1 executes communication related to the measurement of communication quality by transmitting a predetermined number of packets from the terminal device 30-1 to the access point 20-3. The terminal device 30-1 acquires information related to communication quality as the measurement result and transmits the acquired information to the measurement device 10 via the access point 20-1. The information related to communication quality includes, for example, some or all of the radio wave intensity, transmission speed, throughput, delay time, error rate, etc. of the wireless network provided by the access point 20 to be measured. Furthermore, when the communication related to the measurement of communication quality is completed, the terminal device 30-1 transmits information indicating the completion of the measurement to the measurement device 10 via the access point 20-1.

[0019] The measurement device 10 instructs each of the multiple terminal devices 30 and multiple access points 20 included in the wireless network system 1 to perform communication related to measurement of communication quality, and measures the communication quality of the entire wireless network system 1.

[0020] [Configuration of measuring device 10] As shown in FIG. 2, the measurement device 10 includes a control unit 100, a communication unit 110, a display unit 120, and a storage unit 200.

[0021] The control unit 100 is realized, for example, by a hardware processor such as a CPU (Central Processing Unit) executing a program (software). Some or all of these components may be realized by hardware (including circuitry) such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a GPU (Graphics Processing Unit), or may be realized by a combination of software and hardware. The program may be stored in the storage unit 200 in advance, or may be stored on a removable storage medium such as a DVD or CD-ROM, and installed in the storage unit 200 by inserting the storage medium into a drive device of the measurement device 10.

[0022] The communication unit 110 is realized by a network card such as a NIC (Network Interface Card), a wireless communication module, or the like, and transmits and receives information to and from other devices such as the access point 20 and the terminal device 30 via a wired network or a wireless network.

[0023] The display unit 120 is realized by a display or the like, and displays various images based on the control of the control unit 100. The storage unit 200 is realized by, for example, a ROM (Read Only Memory), a flash memory, an SD card, a RAM (Random Access Memory), etc. The storage unit 200 stores, for example, a program that realizes the control unit 100 as well as combination information 201.

[0024] 3, the combination information 201 is information indicating a combination of communications related to measurement of communication quality between a terminal device 30 and an access point 20. In detail, the combination information 201 includes one or more records in which information indicating the terminal device 30 to be measured and information indicating the access point 20 to be measured are associated one-to-one. The example combination information 201 shown in FIG. 3 indicates that communications related to measurement of communication quality are performed by a combination of the terminal device 30-1 and the access point 20-3, a combination of the terminal device 30-2 and the access point 20-3, and a combination of the terminal device 30-3 and the access point 20-4.

[0025] The control unit 100 includes a measurement instruction unit 101, an image generation unit 102, and a determination unit 103. Based on combination information 201, the measurement instruction unit 101 instructs the terminal device 30 or the access point 20 to perform communication related to communication quality measurement via the network using the communication unit 110. Here, the measurement instruction unit 101 instructs communication related to communication quality measurement for combinations that can communicate simultaneously. In the combination information 201 shown in FIG. 3, the combination of terminal device 30-1 and access point 20-3 and the combination of terminal device 30-2 and access point 20-3 cannot communicate simultaneously one-to-one, but the combination of terminal device 30-1 and access point 20-3 and the combination of terminal device 30-3 and access point 20-4 can communicate simultaneously one-to-one. Therefore, the measurement instruction unit 101 instructs communication related to communication quality measurement for two combinations that can communicate simultaneously.

[0026] Based on the received measurement results, the image generation unit 102 generates a measurement image showing the communication status between the terminal device 30 that performed communication related to the communication quality measurement in accordance with the instruction of the measurement instruction unit 101 and the access point 20, and displays the measurement image on the display unit 120. In the following description, the terminal device 30 and the access point 20 that performed communication related to the communication quality measurement in accordance with the instruction of the measurement instruction unit 101 will be referred to as the "terminal device 30 to be measured" and the "access point 20 to be measured." Furthermore, when there is no need to distinguish between the "terminal device 30 to be measured" and the "access point 20 to be measured," they will also be simply referred to as the "measurement target." The image generation unit 102 of this embodiment generates, as the measurement image, a list image IM1 that shows a list of the terminal devices 30 and the access points 20 that communicate in accordance with the instruction of the measurement instruction unit 101, and displays the list image on the display unit 120. Details of the list image IM1 will be described later.

[0027] The determination unit 103 determines whether or not the measurement of communication quality between the terminal device 30 and the access point 20 has been properly completed. The case where the measurement of communication quality has not been properly completed means, for example, that the measurement of communication quality by the measurement target has been started and the measurement result has been received, but information indicating that the measurement has been completed has not been received from the measurement target.

[0028] [About list image IM1] As shown in FIG. 4, the image generation unit 102 generates a list image IM1 including a terminal device 30 to be measured, an access point 20 to be measured, and a table showing the communication status between the terminal device 30 and the access point 20. The communication status includes, for example, “measurement started,” “measuring,” “measurement completed,” and “measurement failed.” “Measurement started” refers to, for example, a state in which the measurement instruction unit 101 has transmitted information indicating an instruction to start measurement. “measurement in progress” refers to, for example, a state in which information related to communication quality has been received as a measurement result from the measurement target. “measurement completed” refers to, for example, a state in which information indicating that measurement has been completed has been received from the measurement target. “measurement failed” refers to, for example, a state in which the determination unit 103 has determined that the measurement has not been properly completed. The image generation unit 102 determines the communication status based on the information transmitted by the measurement instruction unit 101, the information received by the communication unit 110, and the determination result of the determination unit 103, and generates the list image IM1.

[0029] [Operation flow] The operation of the measurement device 10 will be described in detail with reference to Fig. 5. The measurement device 10 executes the process of the flowchart shown in Fig. 5 at the timing when measuring the communication quality of the wireless network system 1. First, the measurement instruction unit 101 refers to the combination information 201 and instructs the terminal device 30 to be measured or the access point 20 to be measured to perform communication related to measurement of communication quality (step S100). In detail, the measurement device 10 transmits information including information indicating the terminal device 30 to be measured and the access point 20 to be measured, and an instruction to start measurement, to the terminal device 30 to be measured or the access point 20 to be measured, using the communication unit 110 via the network.

[0030] Next, the image generation unit 102 determines whether communication related to the measurement of communication quality has started between the terminal device 30 to be measured and the access point 20 in response to an instruction from the measurement instructing unit 101 (step S102). Specifically, the image generation unit 102 determines that communication related to the measurement of communication quality has started when, in response to an instruction from the measurement instructing unit 101, the communication unit 110 transmits information indicating the terminal device 30 to be measured and the access point 20 to be measured, and information including an instruction to start measurement. On the other hand, if the communication unit 110 does not transmit information indicating an instruction to start measurement for some reason despite the instruction from the measurement instructing unit 101, the image generation unit 102 determines that communication related to the measurement of communication quality has not started. When the image generation unit 102 determines that communication related to the measurement of communication quality has started, the image generation unit 102 determines that the communication status between the terminal device 30 to be measured and the access point 20 is "measurement started," generates a list image IM1, and displays it on the display unit 120 (step S104).

[0031] Next, the image generation unit 102 determines whether information related to communication quality has been received as a measurement result from the terminal device 30 or the access point 20 to be measured (step S106). If the image generation unit 102 determines that information related to communication quality has been received as a measurement result from the measurement target, it determines that the communication status between the terminal device 30 to be measured and the access point 20 is "under measurement." On the other hand, if the measurement instruction unit 101 has issued an instruction for communication related to communication quality measurement but the image generation unit 102 has not received a measurement result from the measurement target after a predetermined time has passed, it determines that information related to communication quality has not been received as a measurement result. If the image generation unit 102 determines that information related to communication quality has been received as a measurement result from the measurement target, it generates or updates a list image IM1 in which the communication status of the measurement target is set to "under measurement," and displays the list image IM1 on the display unit 120 (step S108).

[0032] Next, the determination unit 103 determines whether or not the measurement of communication quality between the terminal device 30 to be measured and the access point 20 has been properly completed (step S110). In detail, if the determination unit 103 does not receive information indicating that the measurement has been completed from the measurement target even after a predetermined time has elapsed since the communication state changed to measurement start or measurement in progress, the determination unit 103 determines that the measurement of communication quality has not been properly completed.

[0033] If it is determined in step S102 that communication related to the measurement of communication quality has not started, if it is determined in step S106 that information related to communication quality has not been received as the measurement result, or if the determination unit 103 determines that the measurement of communication quality has not been properly completed, the image generation unit 102 determines the communication status of the measurement target to be "measurement failed." The image generation unit 102 generates or updates a list image IM1 in which the communication status of the measurement target is set to "measurement failed," displays it on the display unit 120 (step S112), and ends the process.

[0034] If the determination unit 103 determines that the communication quality measurement has been properly completed, the image generation unit 102 determines the communication status between the terminal device 30 to be measured and the access point 20 to be "measurement completed." The image generation unit 102 generates or updates a list image IM1 in which the communication status of the measurement target has been set to "measurement completed," and displays the list image IM1 on the display unit 120 (step S114). The measurement instruction unit 101 refers to the combination information 201, and instructs the terminal device 30 to be measured or the access point 20 to be measured, which have not yet performed communication related to the communication quality measurement, to perform communication related to the communication quality measurement (step S116), and proceeds to the process at step S102.

[0035] [Effects of the measuring device 10] (1) In the measurement device 10 of this embodiment, the image generation unit 102 generates a measurement image based on the communication state between the terminal device 30 to be measured and the access point 20 to be measured, and displays the measurement image on the display unit 120. In this embodiment, the image generation unit 102 generates a list image IM1 as the measurement image.

[0036] According to this configuration, the measurement device 10 can display the measurement results of communication quality on the display unit 120 for each communication related to the measurement of communication quality between the terminal device 30 and the access point 20. Furthermore, the image generation unit 102 can easily display the measurement results of communication quality using the list image IM1.

[0037] The above-described embodiments may be modified as follows: The above-described embodiments and the following modifications may be combined with each other within the scope of technical compatibility. <Modification: When a measurement image is displayed superimposed on a map image> In the above, the image generation unit 102 generates the list image IM1 as the measurement image, but this is not limiting. Below, we will explain a case where the image generation unit 102 generates, as the measurement image, an image in which a line image connecting the terminal device 30 to be measured and the access point 20 to be measured is superimposed on a map image.

[0038] As shown in Fig. 6, the measurement device 10a of the modified example includes a control unit 100, a communication unit 110, a display unit 120, an input unit 130, and a storage unit 200. The input unit 130 is realized by a keyboard, a mouse, a touch panel, or the like, and receives user operations. In addition to combination information 201, the storage unit 200 of the modified example also stores map image information 202. The map image information 202 is information indicating a map image MP1 of the positions where the access point 20 and the terminal device 30 are installed.

[0039] The image generation unit 102 of the measurement device 10a of the modified example displays a map image MP1 on the display unit 120 before the measurement instruction unit 101 issues an instruction for communication related to measurement of communication quality. The user uses the input unit 130 to superimpose access point images GP1 representing each access point 20 on the map image MP1 displayed on the display unit 120. The user also uses the input unit 130 to superimpose terminal device images GP2 representing each terminal device 30 on the map image MP1 displayed on the display unit 120.

[0040] 7, in this example, the user superimposes an access point image GP1-1 indicating access point 20-3 and an access point image GP1-2 indicating access point 20-4 on the map image MP1. The user also superimposes a terminal device image GP2-1 indicating terminal device 30-1, a terminal device image GP2-2 indicating terminal device 30-2, and a terminal device image GP2-3 indicating terminal device 30-3 on the map image MP1.

[0041] In this modified example, the image generation unit 102 superimposes a status image MS1 indicating the communication status among "measurement started," "measuring," "measurement completed," and "measurement failed" on the map image MP1. Note that when different combinations of communications related to communication quality measurement are being executed simultaneously, the image generation unit 102 may superimpose a status image MS1 indicating a communication status with a higher priority on the map image MP1. The priority of the communication status may be determined in advance or may be specified by the user. For example, if it is desired to quickly confirm that a measurement has failed, the priority of the communication status of "measurement failed" is increased. In this case, even if some of the communications related to the communication quality measurement being executed simultaneously are "measuring," the image generation unit 102 superimposes a status image MS1 indicating "measurement failed" on the map image MP1.

[0042] In addition, instead of (or in addition to) the process of generating a list image IM1 including a table showing the communication status, the image generation unit 102 of the modified example superimposes a line image GP3 connecting the terminal device 30 to be measured and the access point 20 to be measured on the map image MP1 as a measurement image.

[0043] 8, the image generation unit 102 superimposes a line image GP3-1 connecting the access point 20-1 to be measured and the terminal device 30-1 on the map image MP1 as a measurement image. Also, the image generation unit 102 superimposes a line image GP3-2 connecting the access point 20-2 to be measured and the terminal device 30-3 on the map image MP1 as a measurement image.

[0044] According to this configuration, the display unit 120 can display the measurement results of communication quality as a line image GP3 in association with the positions where the terminal device 30 and the access point 20 are installed. This allows the user to visually and easily recognize the combination of the terminal device 30 and the access point 20 with which communication related to the measurement of communication quality is being performed.

[0045] If the determination unit 103 determines that the measurement has not been properly completed, the image generation unit 102 may display an alert image GP4 related to the communication status between the corresponding terminal device 30 and the access point 20. As shown in Fig. 9, since the measurement of the communication quality between the access point 20-1 and the terminal device 30-1 has been completed, the measurement instruction unit 101 instructs the start of communication related to the measurement of the communication quality between the next combination of access point 20-1 and the terminal device 30-2. Accordingly, the image generation unit 102 superimposes a line image GP3-3 connecting the access point 20-1 to be measured and the terminal device 30-2 on the map image MP1 as a measurement image. On the other hand, if the determination unit 103 determines that the measurement of the communication quality between the terminal device 30-3 and the access point 20-2 has not been properly completed, the image generation unit 102 superimposes an alert image GP4-1 connecting the terminal device 30-3 to be measured and the access point 20-2 on the map image MP1, instead of the line image GP3-2. The alert image GP4 is realized, for example, by a line image with a display mode different from that of the line image GP3. For example, the line image GP3 is realized by a solid line, and the alert image GP4 is realized by a dashed line.

[0046] According to this configuration, the display unit 120 can notify the user of the communication status using an alert image GP4 relating to the communication status between the terminal device 30 for which measurement has not been properly completed and the access point 20. This allows the user to visually and easily recognize the combination of the terminal device 30 for which measurement of communication quality has failed and the access point 20.

[0047] In the above-described embodiment, the case has been described in which processing is terminated when the communication status of some of the communications related to the measurement of communication quality that was being performed in response to an instruction from the measurement instructing unit 101 becomes "measurement failed." However, this is not limited to this. When the determining unit 103 determines that the measurement has not been properly completed, the measurement instructing unit 101 may cancel the communication related to the measurement of communication and instruct communication to a terminal device 30 or an access point 20 that has not yet performed communication related to the measurement of communication quality, among the combinations indicated in the combination information 201. In this case, when the determining unit 103 determines that the measurement has not been properly completed and the communication related to the measurement of communication quality is canceled, the image generating unit 102 continues to display an alert image GP4 indicating that the communication has been canceled.

[0048] In the example shown in FIG. 10 , the determination unit 103 determines that communication related to the measurement of communication quality between the terminal device 30-1 and the access point 20-1 has not been properly completed. Then, the measurement instruction unit 101 stops the communication related to the measurement of communication quality between the terminal device 30-1 and the access point 20-1. The image generation unit 102 superimposes an alert image GP4-2 connecting the terminal device 30-1 and the access point 20-1 on the map image MP1. Then, the measurement instruction unit 101 refers to the combination information 201 and causes the next combination of the terminal device 30-2 and the access point 20-1, which have not yet performed communication related to the measurement of communication quality, to perform the measurement. The image generation unit 102 superimposes a line image GP3-3 corresponding to the next measurement on the map image MP1.

[0049] With this configuration, the measurement device 10 stops communication even if the measurement of communication quality between the terminal device 30 and the access point 20 has not been properly completed. Then, the measurement device 10 causes the next combination of the terminal device 30 and the access point 20, which have not yet performed communication related to the communication quality measurement, to perform the measurement, thereby enabling efficient measurement of communication quality.

[0050] The image generating unit 102 may change the display mode of the line image GP3 depending on the communication state. As shown in FIG. 11 , the image generating unit 102 may, for example, increase the thickness of the line image GP3 as the received measurement result indicates better communication quality. The image generating unit 102 may also display the line image GP3 and the alert image GP4 in different colors. For example, the image generating unit 102 may display the line image GP3 in a cooler color as the received measurement result indicates better communication quality, and may display the line image GP3 in a warmer color and the alert image GP4 in a red color as the received measurement result indicates worse communication quality. With this configuration, the display unit 120 can visually notify the user of the measurement results in an easily understandable manner.

[0051] If the communication status is uniquely determined to be one of "measurement started," "measuring," "measurement completed," and "measurement failed" based on information related to communication quality received as a measurement result, such as communication history and link up / link down, the image generation unit 102 does not need to perform processing to determine the communication status. In this case, the image generation unit 102 displays on the display unit 120 a list image IM1 or a line image GP3 indicating the uniquely determined communication status based on the information related to communication quality received as a measurement result.

[0052] In the above description, the image generation unit 102 displays the map image MP1 on the display unit 120 before the measurement instructing unit 101 issues an instruction for communication related to the measurement of communication quality. However, this is not limited to this. The storage unit 200 may store in advance, as map image information 202 representing the map image MP1, an access point image GP1 representing each access point 20 and a terminal device image GP2 representing each terminal device 30 superimposed on the map image MP1. In this case, the user does not use the input unit 130 to perform a process of placing the access point image GP1 or the terminal device image GP2 on the map image MP1, and the measuring device 10 and the measuring device 10a may not be provided with the input unit 130.

[0053] The measuring device 10 and the measuring device 10a may not include the determination unit 103. In this case, the measuring device 10 and the measuring device 10a proceed to the next process without executing the process of step S112. The process of the measuring device 10 allows the user to recognize that the measurement has failed when the list image IM1 continues not to show "measurement started" or continues to show "measurement in progress" and not "measurement completed." Furthermore, the process of the measuring device 10a allows the user to recognize that the measurement has failed when the status image MS1 continues not to show "measurement started," continues not to display the line image GP3, or continues to display the line image GP3.

[0054] The image generating unit 102 may display the alert image GP4 in cases other than when the determining unit 103 determines that the measurement has not been properly completed. Specifically, when the image generating unit 102 determines that communication related to the measurement of communication quality has not started, the image generating unit 102 may display the alert image GP4 linking the access point 20 to be measured and the terminal device 30 to be measured. Furthermore, when the measurement instructing unit 101 determines that information related to communication quality has not been received as the measurement result, the image generating unit 102 may display the alert image GP4 linking the access point 20 to be measured and the terminal device 30 to be measured. Furthermore, the image generating unit 102 may display the alert image GP4 in different ways depending on whether communication related to the measurement of communication quality has not started, whether information related to communication quality has not been received as the measurement result, or whether the measurement has not been properly completed.

[0055] The measurement device 10 and the measurement device 10a may have the same functions as the access point 20, for example. In this case, the measurement device 10 and the measurement device 10a may have a layer 3 routing function. With this configuration, the measurement device 10 and the measurement device 10a can refer to the routing table in the configuration shown in FIG. 1 and uniquely select the access point 20-1 as the destination of information to the terminal device 30-1. Therefore, the measurement device 10 and the measurement device 10a can prevent unnecessary packets from being sent and received in the wireless network system 1.

[0056] The terminal device 30 may have the same functions as the access point 20. In this case, the measurement instruction unit 101 specifies the provider of the wireless network whose communication quality is to be measured, either the terminal device 30 or the access point 20, and instructs communication related to the measurement of communication quality.

[0057] The above-described numbers of access points 20 and terminal devices 30 are merely examples and are not intended to be limiting. The wireless network system 1 may include any number of access points 20 and terminal devices 30, as long as the wireless network system 1 includes multiple access points 20 and multiple terminal devices 30. [Explanation of symbols]

[0058] 1...wireless network system, 10...measuring device, 10a...measuring device, 20, 20-1, 20-2, 20-3, 20-4...access points, 30, 30-1, 30-2, 30-3...terminal devices, 100...control unit, 101...measurement instruction unit, 102...image generation unit, 103...judgment unit, 110...communication unit, 120...display unit, 130...input unit, 200...memory unit, 201...information, 202...map image information, GP3, GP3-1, GP3-2, GP3-3...line image, GP4, GP4-1, GP4-2...alert image, IM1...list image, MP1...map image, MS1...status image.

Claims

1. a communication unit for transmitting and receiving information to and from a plurality of terminal devices and a plurality of communication devices communicating with the terminal devices; a measurement instruction unit that instructs the terminal device or the communication device via the communication unit to perform communication related to measurement of communication quality between the terminal device and the communication device based on combination information indicating a combination of communications between the plurality of terminal devices and a plurality of communication devices communicating with the terminal devices; the terminal device that performs communication related to the measurement of the communication quality in response to an instruction from the measurement instruction unit; and an image generation unit that generates a measurement image indicating which communication state the communication with the communication device is in, out of measurement start, measurement in progress, measurement completed, and measurement failed; a display unit that generates or updates and displays the measurement image for each communication related to the measurement of the communication quality between the terminal device and the communication device; Equipped with The measurement device is characterized in that the image generation unit displays, as the measurement image, a line image connecting the terminal device, with which communication is being performed at the instruction of the measurement instruction unit, and the communication device, superimposed on a map image showing the locations where the multiple terminal devices and the multiple communication devices are installed, on the display unit.

2. a determination unit that determines whether measurement of communication quality between the terminal device and the communication device has been properly completed based on whether information indicating that measurement has been completed is received from the terminal device or the communication device; When the determination unit determines that the measurement has not been properly completed, the image generation unit causes the display unit to display an alert image relating to a communication status between the corresponding terminal device and the communication device. The measuring device according to claim 1 .

3. a determination unit that determines whether measurement of communication quality between the terminal device and the communication device has been properly completed based on whether information indicating that measurement has been completed is received from the terminal device or the communication device; When the determination unit determines that the measurement has not been properly completed, the measurement instruction unit stops communication related to the measurement of communication, and instructs the terminal device or the communication device, among the combinations indicated in the combination information, that has not yet performed communication related to the measurement of communication quality to perform communication. The measuring device according to claim 1 or 2.

4. the image generation unit changes the display mode of the measurement image depending on the measurement result of the communication quality and displays it on the display unit.

4. The measuring device according to claim 1, wherein the measuring device is a measuring device for measuring a temperature of the object.

Images