JP6760369B2 - Control device - Google Patents

Description

The present invention relates to a control device. The present invention particularly relates to a control device capable of easily grasping the state of a wireless relay device.

Conventionally, in a multi-channel wireless communication system, the radio wave state of a plurality of channels is quantified by using the electric field strength values of a plurality of channels received from a plurality of wireless devices, and the quantified data is used for each of a plurality of channels. Discloses a radio wave condition display device that visualizes the radio wave conditions of a plurality of wireless devices and simultaneously displays them on a display screen (Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-114416

However, the technique disclosed in Patent Document 1 has a problem that it can only grasp the radio wave state of the wireless device and cannot grasp the state of the access point.

The present invention is intended to solve the above-mentioned problems associated with the prior art, and an object of the present invention is to provide a control device capable of easily grasping the state of a wireless relay device. is there.

According to one embodiment of the present invention, from a plurality of wireless relay devices, first information indicating the communication status related to the wireless relay device and second information indicating the communication status related to the identifier set in the wireless relay device are shown. A receiver that receives communication status information including information and third information indicating communication status commonly related to a plurality of identifiers set in the same wireless relay device, and a three-dimensional space defined by a plane and a third direction. As an image group in which the image corresponding to the identifier is arranged and grouped in the third direction for each of the wireless relay devices in which the identifier is set, at least one of the plane and the third direction is displayed. A control device including a generation unit that displays data at a position corresponding to the first information and generates data for displaying the second information corresponding to the identifier in the image corresponding to the identifier. Provided.

According to the present invention, it is possible to provide a control device capable of easily grasping the state of the wireless relay device.

It is a block diagram which shows the relationship of a plurality of access points which cooperate with the control device which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of the control device which concerns on one Embodiment of this invention. It is a block diagram which shows the functional block structure of the control part of the control device which concerns on one Embodiment of this invention. It is a figure which shows an example of the display part of the control device which concerns on one Embodiment of this invention. It is a conceptual diagram which shows an example of the whole map of the control device which concerns on one Embodiment of this invention. It is a conceptual diagram which shows an example of the icon which concerns on one Embodiment of this invention. It is a conceptual diagram which shows an example of the icon which concerns on one Embodiment of this invention. It is a conceptual diagram which shows an example of the icon which concerns on one Embodiment of this invention. It is a conceptual diagram which shows an example of the icon which concerns on one Embodiment of this invention. It is a flow diagram which shows the operation example at the time of using the whole map function of the control device which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of the control device which concerns on the modification of this invention. It is a block diagram which shows the structure of the control device which concerns on other modification of this invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The embodiments shown below are examples of the embodiments of the present invention, and the present invention is not limited to these embodiments. In the drawings referred to in the present embodiment, the same part or a part having the same function is given the same code or a similar code (a code in which A, B, etc. are simply added after the numbers), and the process is repeated. The explanation of may be omitted. In addition, the dimensional ratio of the drawing may differ from the actual ratio for convenience of explanation, or a part of the configuration may be omitted from the drawing.

The relationship between a plurality of wireless relay devices (access points) 4a and the like that cooperate with the control device 3 will be described with reference to FIG. FIG. 1 is a block diagram showing a relationship between a control device and a plurality of access points according to an embodiment of the present invention. Here, the plurality of access points 4a and the like that cooperate with the control device 3 are collectively referred to as a wireless communication system. Further, in FIG. 1, there are a plurality of access points 4a, 4b, ..., 4n, but when it is not necessary to distinguish each access point, it is simply referred to as "access point 4". Databases 5a, 5b, ..., 5n are connected to each access point 4, but when it is not necessary to distinguish them, they are simply referred to as "database 5". In this specification, "radio" means transmitting a signal through space by electromagnetic waves.

In this example, the wireless relay device 4 is an access point (AP) of a wireless LAN (Local Area Network). However, the wireless relay device 4 may be a wireless LAN router. In the following description, the wireless relay device 4 will be described as being an access point. The access point 4 acquires information on the communication status as will be described in detail later. The acquired information is stored and held in the database 5.

A wireless terminal (not shown) is connected to the access point 4. The wireless terminal includes a multifunctional mobile phone, a mobile communication terminal device such as a mobile phone and a PDA (Personal Digital Assistant), an information processing terminal device having a communication function and a calculation function such as a personal computer, and the like. It also includes a browser as a display control function, a communication control unit that performs communication control between the CPU, memory, and the wireless relay device 4. Further, an operation input device such as a mouse, a keyboard, and a touch panel and a display device can be provided.

In this example, the control device 3 is an access point (AP) of a wireless LAN (Local Area Network). In this example, the control device 3 controls a plurality of access points 4. Here, the control device 3 may be referred to as a controller access point (controller AP) in the sense that it has a function of controlling a plurality of access points 4. On the other hand, a plurality of access points 4 controlled by the controller access point may be referred to as member access points. The database 6 is connected to the control device 3. As will be described in detail later, the information received by the control device 3 from the access point 4 is stored and held in the database 6. However, the control device 3 is not limited to the access point of the wireless LAN. The control device 3 may be connected to a plurality of access points 4 by wire.

[Control device configuration]
Next, the configuration of the control device 3 will be described with reference to FIG. FIG. 2 is a block diagram showing a configuration of a control device according to an embodiment of the present invention.

The control device 3 includes a control unit 30, a storage unit 60, an operation unit 40, a display unit 50, a connection unit 70, and a communication unit 80. Each of these configurations is connected via a bus.

The control unit 30 includes an arithmetic processing circuit such as a CPU. The control unit 30 realizes a function for executing a program stored in the storage unit 60 by a CPU (computer) to perform a display data generation process described later. A part or all of the configuration that realizes the function here is not limited to the case where it is realized by software by executing the program, and may be realized by hardware. A case where it is realized by hardware will be described in Modification 1. The function realized by the control unit 30 includes a function of controlling each unit of the device in addition to a function of generating display data (display data generation function).

The storage unit 60 is a storage device such as a non-volatile memory or a hard disk. The storage unit 60 includes a storage area for storing application programs for realizing various functions such as the above-mentioned program, and a storage area for storing setting information set by a setting process or the like. The program may be provided as stored in a computer-readable recording medium such as a magnetic recording medium, an optical recording medium, an optical magnetic recording medium, or a semiconductor memory, as long as it can be executed by a computer. In this case, the control device 3 may include a device for reading the recording medium. The program may also be downloaded via the network.

The operation unit 40 outputs a signal corresponding to the operation input by the user by the operation button or the like to the control unit 30. The operation button may be an operator that includes, for example, a power switch, a cursor key, and the like, and accepts a user's instruction. The display unit 50 is a display device such as a liquid crystal display or an organic EL display, and displays a screen (setting screen or the like) based on the control by the control unit 30. The control device 3 may not have the operation unit 40 and the display unit 50. In this case, the functions corresponding to the operation unit 40 and the display unit 50 may be substituted in the external device connected to the control device 3. The connection unit 70 is an interface for connecting to a terminal such as a PC.

The communication unit 80 connects to a network (not shown) based on the control of the control unit 30 and transmits / receives information to / from an external device. The above is the description of the control device 3.

Next, the configuration of the control unit 30 of the control device 3 will be described with reference to FIG. FIG. 3 is a block diagram showing a functional block configuration of a control unit of a control device according to an embodiment of the present invention. The control device 3 includes a receiving unit 31 and a generating unit 33. Note that FIG. 3 also shows a display unit 50, a storage unit 60, and a communication unit 80 for convenience of explanation.

The receiving unit 31 receives communication status information from a plurality of access points 4. The receiving unit 31 may receive communication status information from a plurality of access points 4 after receiving an input for updating the display contents. Here, the communication status information includes information indicating the communication status related to the access point (first information) and information indicating the communication status related to the identifier (SSID; Service Set IDentifier) set for the access point (second information). Information) and information (third information) indicating a communication status commonly related to a plurality of SSIDs (Multi SSIDs) set in the same access point.

The information indicating the communication status related to the access point is, for example, information such as radio field strength, channel, and number of access points. Information indicating the communication status related to the SSID set in the access point includes, for example, the SSID, the MAC address of the wireless terminal connected to the SSID, the media type (IEEE 802.11a / b / g / n, etc.), and the like. Information such as channel, transmission speed, authentication method (open, PSK, WPA, WPA2, etc.), encryption method, and the like.

Information indicating communication status commonly related to a plurality of SSIDs set in the same access point includes, for example, channel usage rate, CRC error occurrence rate, communication load (traffic), and frequency (2.4 GHz in this example). Information such as the number of connected wireless terminals (5 GHz).

The generation unit 33 has a plane defined by the X-axis direction (first direction) 701 and the Z-axis direction (second direction) 702 and a Y-axis direction (third direction) different from the X-axis direction 701 and the Z-axis direction 702. ) Generate data that pseudo-displays the three-dimensional space defined by 703. Further, the generation unit 33 arranges and groups the images corresponding to the SSID described later in the Y-axis direction 703 for each access point 4 in which the SSID is set as an image group 65 (see FIG. 5) in the X-axis direction 701. , Z-axis direction 702 and Y-axis direction 703, along at least one direction, generate data to be displayed at a position corresponding to information indicating a communication status related to the access point. In addition, the generation unit 33 generates data for displaying information indicating the communication status related to the SSID set in the access point corresponding to the SSID in the image corresponding to the SSID. Further, the generation unit 33 is an area corresponding to the image (the icon 61 of the representative SSID described later) located in the foreground of the image group 65, and is superimposed on the image corresponding to another SSID included in the image group 65. Data for displaying information indicating a communication status commonly related to a plurality of SSIDs set in the same access point corresponding to the plurality of SSIDs indicated by the image group 65 is generated at a position including at least a non-area. The display unit 50 displays an image using the data generated by the generation unit 33.

The generation unit 33 may generate data that pseudo-displays the three-dimensional space defined by the plane and the Y-axis direction (third direction) 703. In this case, the generation unit 33 arranges and groups the images corresponding to the SSID in the Y-axis direction 703 for each access point 4 in which the SSID is set as an image group 65 (see FIG. 5) as a plane and Y. Data to be displayed at a position corresponding to information indicating the communication status related to the access point is generated in at least one of the axial directions 703. For example, when the channel is displayed in the Y-axis direction 703 and the radio field intensity and the number of access points are displayed on a plane, the display method on the plane may be any display method. The plane does not have to be a plane orthogonal to the X-axis and the Z-axis, and the relationship between the radio field intensity and the number of access points may be displayed in one direction such as the X-axis or the Z-axis. Further, the relationship between the radio field intensity and the number of access points may be displayed on an arbitrary axis (for example, in a spiral shape) of the plane.

Next, the display of the display unit 50 of the control device 3 will be described with reference to FIG. FIG. 4 is a diagram showing an example of a display unit of the control device according to the embodiment of the present invention.

CH + button 501, CH-button 503, channel selection button 505, search button 509, whole display button 515, enlargement button 517, reduction button 519, up button 521, down button 523, left button 525, right button 527 shown in FIG. , The origin return button 529 and the automatic update button 543 are included in the operation unit 40.

By pressing the whole display button 515, the whole map can be displayed as shown in FIG. The display can be enlarged by pressing the enlargement button 517, and the display can be reduced by pressing the reduce button 519. By pressing the up button 521, the down button 523, the left button 525, and the right button 527, it is possible to specify up, down, left, and right, respectively. When the origin return button 529 is pressed, the vicinity of the origin is displayed. Further, depending on whether or not the automatic update button 543 is pressed, it is possible to select whether to update the displayed contents automatically or manually. Further, by pressing the XY display button (not shown), the XY plane can be displayed as the front. Similarly, pressing the YZ display button (not shown) allows the YZ plane to be displayed as the front, and pressing the ZX display button (not shown) displays the ZX plane as the front. Can be done. When these planes are the front, the other axes are not displayed. Further, when the button 531 is pressed, the CRC error rate of the frame addressed to the own station is displayed, and when the button 533 is pressed, the CRC error rate of all the frames received by the access point 4 is displayed.

When the CH + button 501 is pressed, a channel having a value increased by one channel from the currently selected channel is selected. On the other hand, when the CH-button 503 is pressed, a channel having a value one channel less than the currently selected channel is selected. By pressing the channel selection button 505, the channel can be freely selected. Information on channels other than the channel selected by setting may be hidden. A free word can be entered in the search field 511. When the search button 509 is pressed, the search result is displayed in the additional information display field 545. In this example, "SSID-8" is entered in the search field 511. When "SSID-8" is searched, an icon corresponding to "SSID-8" (a representative SSID icon 61 or a sub SSID icon 62 described later) is displayed in the additional information display field 545.

When the additional information display icon (not shown) is pressed, the comment in the additional information display field 545 may be updated. In the additional information display column 545, "good" and "evil" are described, and there are five rectangles in between. The five rectangles may be colored differently or may have different characters written on them. In this example, the meanings of the five rectangles are "good", "acceptable", "caution", "warning", and "serious" in terms of "good". However, the number and meaning of rectangles can be set as appropriate.

The evaluation criteria are determined based on the communication status information. The CRC error rate of the channel used by the own station (the control device 3) is a predetermined percentage or more, there is a channel that completely overlaps with the channel used by the own station, and the channel usage rate is predetermined. Percentage or more, the number of wireless terminals connected to the own station is more than the specified number, there is a wireless terminal whose signal reception strength from the wireless terminal connected to the own station is -70 dBm or less, etc. Conditions may be set, and each condition may be integrated and used as an evaluation standard.

As mentioned above, even users who do not have specialized knowledge can have problems by displaying in colors and characters that mean "good", "acceptable", "caution", "warning", "serious", etc. It has the effect of being able to judge the importance of.

Next, the entire map of the wireless LAN will be described with reference to FIG. FIG. 5 is a conceptual diagram showing an example of an overall map of the control device according to the embodiment of the present invention.

The SSID icon is displayed at a position corresponding to the information (first information) indicating the communication status related to the access point for each access point 4 in which the SSID icon is set. The information (first information) indicating the communication status related to the access point is, as described above, the radio field strength, the channel, the number of access points, and the like. In the example of FIG. 5, the radio field intensity as the first information is represented in the X-axis direction (first direction) 701, the channel as the first information is represented in the Y-axis direction (third direction) 703, and the Z-axis direction is shown. (Second direction) 702 represents the number of access points as the first information. The radio wave strength means the radio wave strength seen from the control device (own station access point) 3. That is, after arranging the icon of the control device (own station access point) 3 at the origin, the origin is set to 0 dBm, and the farther away from the origin to the minus side in the X-axis direction, the more from the control device (own station access point) 3. It means that the seen radio field strength becomes weaker. However, the X-axis direction 701, the Y-axis direction 703, and the Z-axis direction 702 may be not only any one of the radio field strength, the channel, and the number of access points, but also the channel usage rate, the CRC error rate, and the number of SSIDs. When three types of information are displayed in each of the three directions in this way, the generation unit 33 is data for displaying the image group 65 at positions corresponding to the three types of information along the three directions. To generate.

An image corresponding to the SSID, that is, a representative SSID icon 61, a sub SSID icon 62, and an SSID icon 63 of another company's access point is displayed on the entire map of FIG. The icon 61 of the representative SSID means the icon of the representative SSID of the VAP (Visual Access Point). The representative SSID means an SSID displayed on the front side (front side of the screen) of the plurality of SSIDs of the same access point. The sub SSID icon 62 means an SSID icon other than the representative SSID. In the case of VAP, it is possible to set a plurality of SSIDs (Multi SSIDs). The icon 61 of the representative SSID and the sub SSID icon 62 can be said to be an image group grouped by arranging them in the Y-axis direction 703 for each access point.

The display interval between the representative SSID icons 61, the display interval between the representative SSID icon 61 and the sub SSID icon 62, and the display interval between the representative SSID icon 61 and the SSID icon 63 of another company's access point are set as appropriate. You can change it with.

When the access point is operating with a plurality of SSIDs, the plurality of SSIDs are displayed overlapping in the Y-axis direction 703. That is, the sub SSID icons 62 are displayed side by side behind the icon 61 of the representative SSID so as to partially overlap in the Y-axis direction 703. In other words, the icon 61 of the representative SSID is displayed as a perfect shape icon without being blocked by other icons. On the other hand, the display of the sub SSID icon 62 is blocked at the portion overlapping the icon in front of the screen, and the icon having a perfect shape is not displayed. The difference between the icon 61 of the representative SSID and the sub SSID icon 62 will be described in detail in the description of FIGS. 6 and 7.

Further, in this example, the representative SSID icon 61 and the sub SSID icon 62 are SSIDs of access points manufactured by the same company. Here, an access point made by the same company may be referred to as an "in-house access point". The company access point is a controller access point 3 and a member access point 4 controlled by the controller access point. In this example, the SSID icon of the company's access point is displayed on the plus side in the Z-axis direction 702. On the other hand, the SSID icon 63 of the access point of another company is displayed on the minus side in the Z-axis direction 702. The SSID icon 63 of the third-party access point means the SSID icon of the third-party access point that is not controlled by the controller access point 3. By displaying the SSID of the company's access point and the SSID's icon of the access point of another company separately in this way, it is possible to distinguish and grasp each information.

Further, by displaying the entire map of the access points as shown in FIG. 5, it is possible to grasp the information of all the access points at once without switching the display. Since each of the icons displayed on the entire map (representative SSID icon 61, sub SSID icon 62, SSID icon 63 of another company's access point) has an evaluation lamp, each evaluation can be grasped at a glance. It works. The details of the evaluation lamp will be described later, but in this example, colors corresponding to the five evaluation levels are displayed on the evaluation lamp. By arranging the SSID icon in the pseudo three-dimensional space in this way, it is possible to easily find the SSID having a bad evaluation.

Further, when the radio wave intensity is set to the X-axis direction 701, when there are a plurality of SSID icons whose evaluation level is below a certain level, it is possible to visually grasp the cause of the evaluation level below a certain level. That is, when there are a plurality of SSID icons whose evaluation level is below a certain level and these radio wave intensities are within a predetermined range (for example, the same or close values), it is visually recognized that there is a high possibility of an external wave or an interfering wave. Can be grasped. On the other hand, even if there are multiple SSID icons whose evaluation level is below a certain level, if these radio wave intensities are out of the predetermined range, it is necessary to visually grasp that the possibility of external waves or interfering waves is low. Can be done.

The generation unit 33 has a plurality of images corresponding to the SSID in a predetermined range according to the communication status information, and when the relationship of the radio field intensity information in which the plurality of images are located satisfies a predetermined condition, the plurality of images You may generate data for selecting and displaying the image of. Here, the SSID within a predetermined range according to the communication status information may be, for example, an SSID whose evaluation level is equal to or lower than a certain level. Further, the predetermined condition may be, for example, that the information on the radio field strengths at which the plurality of images are located matches, or the difference between the radio field strengths at which the plurality of images are located is within a predetermined range (for example, 20 dB). It may be within. Predetermined conditions can be set as appropriate. If there are multiple SSID images with a poor evaluation level and the predetermined condition is that the information on the radio field strengths of the multiple images match, the cause of the poor evaluation level is likely to be an external wave or an interfering wave. .. Therefore, there is an effect that it is possible to generate data for selecting and displaying an image of SSID having a poor evaluation level due to an external wave or an interfering wave.

The generation unit 33 displays images corresponding to all SSIDs in a three-dimensional space, and when one of the images corresponding to SSIDs is selected, data for displaying the images corresponding to the selected SSIDs. May be generated. When any of the icons displayed on the entire map (representative SSID icon 61, sub SSID icon 62, SSID icon 63 of another company's access point) is selected, the generation unit 33 displays the selected SSID icon. The data is generated and the icon of the selected SSID is displayed in the additional information display field 545. This has the effect of narrowing down the information you want to check. For example, when checking on the whole map, the detailed information of the icon with a bad evaluation can be confirmed by selecting the icon with a bad evaluation of the evaluation lamp.

When any one of the images of the plurality of wireless relay devices is selected, the generation unit 33 generates data for displaying the selected image of the wireless relay device in a predetermined area. May be good. Specifically, the generation unit 33 displays the selected image of the wireless relay device in the X-axis direction (first direction) 701, the Z-axis direction (second direction) 702, and the Y-axis direction (third direction) 703. Data for display in the area including the center of the three axes (origin shown in FIG. 5) may be generated. For example, in a three-dimensional space having three axes of radio wave strength, channel, and SSID number, in the initial state, the SSID number of the channel in which the SSID icon of the control device (own station access point) 3 is operating is 0, and the radio wave strength is 0 dBm. It is displayed at the position, and the icon of each SSID is displayed for each channel in the order of the radio wave intensity detected by the control device 3. When an image of one of a plurality of access points (member access points) 4 is selected from this initial state, the selected access point 4 is placed at a position where the SSID number of the operating channel is 0 and the radio wave intensity is 0 dBm. Is displayed, and each SSID icon is displayed in the order of the radio wave intensity detected by the access point 4. This has the effect of narrowing down the information you want to check.

Next, the icon 61 of the representative SSID and the sub SSID icon 62 will be described with reference to FIGS. 6 and 7. 6 and 7 are conceptual diagrams showing an example of an icon according to an embodiment of the present invention.

The icon 61 of the representative SSID is displayed in at least three areas. In this example, the three regions are circular, as shown in FIG. However, the shape of the icon 61 of the representative SSID is not limited to the circular shape, and may be any shape such as a polygonal shape and an elliptical shape that can be displayed side by side. Inside the innermost region (first region) of the three regions, for example, at the center 612 of the icon 61 of the representative SSID, information indicating the communication status related to the SSID set in the access point (second information). ) Is displayed. This information may be referred to as basic information. The evaluation lamp 617 displays the evaluation in the second area, which is the area surrounding the first area. The number display 611 is displayed in the third area, which is an area surrounding the second area.

As described above, the basic information (second information) is information such as SSID, MAC address, wireless LAN standard, channel, maximum transmission speed, authentication method, encryption method, and evaluation. In this example, as shown in FIG. 6, the SSID is SSID-12345678. The MAC address is 12:34:56:78:90: ab. The wireless LAN standard is IEEE 802. With ac, the channel is 13ch. The maximum transmission speed is 1.7 Gps, the authentication method is WPA2-EAP, and the encryption method is AES. These pieces of information shown in FIG. 6 are information (second information) indicating the communication status related to the SSID set in the access point.

Also, in this example, the evaluation level is "5". In this example, there are five evaluation levels, and the colors corresponding to the respective evaluations are displayed on the evaluation lamps 617 and 627. For example, when the evaluation level is "1", the evaluation is "serious" as described above, and the corresponding color is dark red. When the evaluation level is "2", the evaluation is the above-mentioned "warning", and the corresponding color is red. When the evaluation level is "3", the evaluation is the above-mentioned "Caution", and the corresponding color is orange. When the evaluation level is "4", the evaluation is "acceptable" as described above, and the corresponding color is green. When the evaluation level is "5", the evaluation is "good" as described above, and the corresponding color is blue. When the evaluation level is "0", there is no evaluation result and the lamp is off. The evaluation level stage and the color corresponding to the evaluation level can be set and changed as appropriate. The evaluation is determined based on the communication status information as described above.

The number display 611 and 621 represent the number of wireless terminals to be connected. In this example, the number display 611 and 621 can display from 0 to 100 units. In addition, the color corresponding to the number of units is also displayed. For example, when the number of connected wireless terminals is 0, the light is turned off, and when the number of connected wireless terminals is 1 to 10, it is displayed in blue. Similarly, 11 to 20 units are displayed in green, 21 to 40 units are displayed in orange, 41 to 50 units are displayed in red, and 51 to 100 units are displayed. When it is a stand, it is displayed in dark red. However, the number of units that can be displayed on the number of units displayed 611 and 621 and the color corresponding to the number of units can be appropriately set and changed.

A third region corresponding to a plurality of SSIDs indicated by the image group is located at a position including at least a region that is located in the foreground of the image group and does not overlap with other images included in the image group. Information (information indicating communication status commonly related to a plurality of SSIDs set in the same access point) is displayed. In this example, the information indicating the communication status commonly related to the plurality of SSIDs set in the same access point is the CRC error rate and the channel usage rate. The CRC error rate 613 displays the CRC error rate, and the channel usage rate 615 displays the channel usage rate. The CRC error rate 613 and the channel usage rate 615 shown in FIG. 6 are information (third information) indicating communication status commonly related to a plurality of SSIDs set in the same access point. The CRC error rate 613 and the channel usage rate 615 are information that have the same value in a plurality of SSIDs, or information that is commonly related. Since the CRC error rate calculates the CRC error rate of all frames received by one access point, there is no conceptual CRC error rate in SSID units. Therefore, the CRC error rate is information common to a plurality of SSIDs. The channel usage rate is the same because one access point uses the same frequency. Therefore, the channel usage rate is information that has the same value in a plurality of SSIDs. The region corresponding to the image located in the foreground of the image group and including at least the region included in the image group that does not overlap with other images is not limited to the CRC error rate and the channel usage rate, and may be plural. Any information that has the same value in the SSID of, or information that is commonly related can be displayed.

The CRC error rate can be displayed from 0% to 100%. Also, the color corresponding to the percentage can be displayed. In this example, when the CRC error rate is 0%, the light is turned off, and when the CRC error rate is 1% to 10%, the light is displayed in blue. Similarly, when the CRC error rate is 11% to 20%, it is displayed in green, and when the CRC error rate is 21% to 40%, it is displayed in orange, and the CRC error rate is 41% to 60%. When the CRC error rate is 61% to 100%, it is displayed in dark red. Similar to the CRC error rate, the channel usage rate is also displayed from 0% to 100% together with the color corresponding to the percentage.

In FIGS. 5 and 6, the CRC error rate 613 information and the channel usage rate 615 information are displayed in the left half around the evaluation lamp 617. This is because, as shown in FIG. 5, since the Y-axis direction 703 is the upper right direction in the plan view, it is displayed on the side opposite to the upper right direction. In this way, what is displayed on the opposite side of the upper right direction is the information that has the same value for multiple SSIDs, or if it is common information, it is displayed on the SSID in front of the screen, that is, the icon 61 of the representative SSID. This is sufficient, and it is not necessary to display it on the sub SSID icon 62. Therefore, as shown in FIG. 7, the CRC error rate information and the channel usage rate information are not displayed on the sub SSID icon 62. The icon 61 of the representative SSID and the sub SSID icon 62 are different in this respect.

The Y-axis direction 703 can be set in any direction. For example, unlike the example of FIG. 5, when the Y-axis direction 703 is the upper left direction in the plan view of FIG. 5, the CRC error rate 613 and the channel usage rate 615 are displayed in the right half around the evaluation lamp 617. Will be done. That is, the CRC error rate 613 and the channel usage rate 615 are displayed on the side opposite to the direction in which the icons of the plurality of SSIDs overlap with each other around the SSID in front of the screen.

For example, when the MAC address of the wireless terminal is input to the search field 511 shown in FIG. 4 for a search, the MAC address information 639 may be displayed outside the circle as shown in FIG. 8A. The display position of the MAC address information is a position that does not easily overlap with other SSID icons. For example, when the Y-axis direction 703 is changed, the MAC address information is displayed from the position shown in FIG. 8A (the position of MAC address information 639) to the position shown in FIG. 8B (the position of MAC address information 649). May change. In this example, as shown in FIGS. 8A and 8B, the MAC address information 639 and the MAC address information 649 have triangular arrows, and these arrows point to the center of the circle, respectively. In this way, when the MAC address of the wireless terminal is searched, the searched MAC address information is displayed, so that it is easy to distinguish it from other SSID icons. Note that the MAC address information is displayed outside the circle not only when the MAC address of the wireless terminal is entered in the search field 511 for searching, but also when the wireless terminal roams. Good. Further, the display of MAC address information may be set within a predetermined time.

Similar to the Y-axis direction 703, the X-axis direction 701 and the Z-axis direction 702 are also regions corresponding to the image located in the foreground of the image group and are not superimposed on other images included in the image group. It can be arbitrarily set as long as it is possible to display information having the same value in a plurality of SSIDs or information related in common at a position including at least the area.

On the other hand, it is preferable that the number display 621 is displayed as much as possible even if a part of the sub SSID icons 62 overlaps. In the example of FIG. 5, a part of the number display overlaps. However, in this example, 1 to 10 units are displayed in blue, 11 to 20 units are displayed in green, 21 to 40 units are displayed in orange, and 41 units. When the number of units is 50 to 50, it is displayed in red, and when it is 51 to 100, it is displayed in dark red. Therefore, for example, even if a part of the number display is overlapped, it is possible to identify which of these five colors is displayed. Therefore, the degree of overlap of the sub-SSID icons 62 is preferably such that it is possible to identify which of the evaluation level colors (5 colors in this example) is displayed even if they overlap. The degree of this overlap will depend on the number of units that can be displayed and the color corresponding to the number of units. In order to display the colors of all the evaluation levels of the number display 621, the generation unit 33 is a plurality of regions corresponding to images corresponding to a plurality of SSIDs at positions including at least a region not superimposed on other images. Data for displaying information on the number of connected wireless terminals corresponding to the SSID of the above may be generated.

As described above, according to the present embodiment, there is an effect that the information of one SSID with one icon can be grasped in real time by one display without switching the screen display. For example, if the channel usage rate and the number of connected wireless terminals are displayed as in the present embodiment, the cause of the high channel usage rate can be investigated. That is, when the channel usage rate is high and the number of connected wireless terminals is large, it is considered that the cause is that the number of connected wireless terminals is large and the access point 4 is loaded. On the other hand, when the channel usage rate is high and the number of wireless terminals to be connected is small, it is considered that the cause is that the wireless terminals connected to the access point 4 are in the low speed mode. The transmission speed of the wireless terminal connected to the access point 4 becomes slower as the distance from the access point 4 increases. If even one wireless terminal has a slow transmission speed, the transmission speed of the other wireless terminal connected to the access point 4 to which the wireless terminal is connected also slows down. In this way, one icon can display one SSID information at one time without switching the screen display, and by displaying multiple communication status information such as the channel usage rate and the number of wireless terminals connected, the SSID can be displayed. It has the effect of being able to grasp the problems that are occurring and their causes.

[Operation example]
An operation example when the whole map function of the control device 3 is used will be described with reference to FIG. FIG. 9 is a flow chart showing an operation example when the overall map function of the control device according to the embodiment of the present invention is used.

First, it is determined whether or not the user has accepted the input for updating the display content (step S101). If this input is not accepted, the process loops until this input is accepted, and when the input is accepted (yes in step S101), the control device 3 informs each access point 4 of the latest communication status. An instruction is transmitted to transmit the information (step S103). The latest communication status information means the communication status information when the record of the communication status information is updated at the access point 4. In other words, it means communication status information having time information (time stamp) at the time of update. When the automatic update button 543 is pressed, it is treated as accepting the input of the update at each set automatic update timing.

Then, the receiving unit 31 receives the latest communication status information from each access point 4 (step S105). In other words, the receiving unit 31 receives the communication status information from the access point 4 after receiving the input for updating the display content. If the receiving unit 31 does not receive the latest communication status information even after the lapse of a predetermined period, the control device 3 may request each access point 4 to retransmit the latest communication status information. Alternatively, the process may be terminated and the user may wait for the input of the update of the display content to be received again.

Subsequently, the latest received communication status information is recorded in the database 5 (step S107). Subsequently, the generation unit 33 generates data for displaying an icon related to each SSID based on the latest communication status information of each access point 4 recorded in the database 5 (step S109). In this operation example, the display unit 50 has been described as being outside the control device 3, but when the control device 3 includes the display unit 50, the display unit 50 further increases the data generated by the generation unit 33. May be displayed.

By displaying the information of each SSID in real time in this way, it is possible to grasp the problem that has occurred in each SSID in real time. In addition, since each SSID icon is displayed in colors and characters meaning "good", "acceptable", "caution", "warning", "serious", etc., even users who do not have specialized knowledge can display it. It has the effect of being able to judge the importance of the problem.

<Modification example 1>
The control device 3 of the above embodiment can also be realized by the following hardware configuration. FIG. 10 is a block diagram showing a configuration of a control device according to a modified example of the present invention. The description of the configuration overlapping with the control device 3 will be omitted. As shown in FIG. 10, the control device 3A includes a radio wave analysis circuit 31A, a data generation circuit 33A, and an image display circuit 35A. The control unit 30 of the control device 3 is realized by the radio wave analysis circuit 31A, the data generation circuit 33A, and the image display circuit 35A. Further, in this example, the communication unit 80A includes the radio wave detection unit 81A, but may be configured by another circuit. The radio wave detection unit 81 detects the received radio wave. The radio wave analysis circuit 31A digitizes the information of the detected radio wave. The radio wave analysis circuit 31A corresponds to the receiving unit 31 of the control device 3. The data generation circuit 33A generates data for displaying an image such as an image of an SSID icon. The data generation circuit 33A corresponds to the generation unit 33 of the control device 3. The image display circuit 35A determines the drawing position. Also in this modification, the same effect as that of the above-described embodiment is obtained.

<Modification 2>
The control device 3 of the above embodiment can also be realized by the following software configuration. FIG. 11 is a block diagram showing a configuration of a control device according to another modification of the present invention. As shown in FIG. 11, the storage unit 60B stores a radio wave analysis program 61B, a data generation program 63B, and an image display program 65B. Unlike the control device 3, it is divided into a plurality of programs. The radio wave detection unit 81 detects the received radio wave. The radio wave analysis unit 31B of the CPU executes the radio wave analysis program 61B stored in the storage unit 60B to quantify the detected radio wave information. The radio wave analysis unit 31B corresponds to the reception unit 31 of the control device 3. The data generation unit 33B of the CPU executes a data generation program stored in the storage unit 60B to generate data for displaying an image such as an image of an SSID icon. The data generation unit 33B of the CPU corresponds to the generation unit 33 of the control device 3. The image display unit 35B of the CPU executes the image display program stored in the storage unit 60B to determine the drawing position. Also in this modification, the same effect as that of the above-described embodiment is obtained.

The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit.

3: Control device 4: Wireless relay device 5, 6: Database 30: Control unit 31: Reception unit 33: Generation unit 40: Operation unit 50: Display unit 60: Storage unit 61: Representative SSID icon 62: Sub SSID icon 65 : Image group 70: Connection part 80: Communication part

Claims (14)

From a plurality of wireless relay devices, first information indicating a plurality of types of communication status related to the wireless relay device, and second information different from the first information and related to an identifier set in the wireless relay device. a receiver for receiving the communication status information including the second information indicating a communication status of,
A pseudo display of the three-dimensional space defined by the plane and the third direction,
One group of images the image corresponding to the identifier set in the wireless relay device grouping are arranged in the third direction, the plane and the type of communication status is assigned, respectively, in the first information displayed at a position corresponding to the first information in the 3-dimensional space artificially defined by the first three-way direction,
The image corresponding to the identifier includes a generation unit that generates data for displaying the second information corresponding to the identifier.
A control device comprising. The communication status information further includes third information that is different from the first information and indicates a communication status that is commonly related to a plurality of identifiers set in one wireless relay device.
The generation unit is a region corresponding to an image located in the foreground of the image group, and a plurality of regions indicated by the image group at positions including at least a region included in the image group that does not overlap with the image. The control device according to claim 1, wherein data for displaying the third information corresponding to the identifier is generated. The generator pseudo-displays a three-dimensional space defined by a plane defined in the first and second directions and a third direction different from the first and second directions.
One of the radio relay device image group set image corresponding to the identifier is grouped arranged in the third direction, the type of the communication status of the first information is assigned each of the first Claim 1 or claim , wherein data for displaying at a position corresponding to the first information in the three-dimensional space pseudo-defined by the direction, the second direction, and the third direction is generated. Item 2. The control device according to item 2. The generator
The image corresponding to the identifier is displayed in at least three areas.
The second information is displayed inside the first region, which is the innermost region of the three regions.
The second area, which is an area surrounding the first area, is displayed in a color corresponding to an index determined based on the communication status information.
The control device according to any one of claims 1 to 3, wherein data for displaying the first information is generated in a third region which is a region surrounding the second region. The first information includes three types of the communication status .
The generating unit, the three types of the communication status is assigned each of the first direction, in the second direction and wherein the three-dimensional space in which the third is the direction thus artificially defined, according to the first information The control device according to claim 3, wherein data for displaying the image group at a vertical position is generated. Any one of claims 3 to 5, wherein the second information includes at least one of the identifier and the MAC address of a wireless terminal connected to the wireless relay device having the identifier. The control device according to claim 1. The control device according to claim 2 , wherein the third information includes at least one of a channel usage rate, a CRC error rate, a communication load, and the number of wireless terminals connected for each frequency. Claim 1 to claim 1, wherein the generation unit generates data for displaying at least a part of an image corresponding to the identifier in a color corresponding to an index determined based on the communication status information. The control device according to any one of 3. The first information includes information on radio field strength.
When the generation unit has a plurality of images corresponding to the identifiers whose indexes determined based on the communication status information are in a predetermined range, and the difference in radio field intensity at which the plurality of images are located is within a predetermined range. The control device according to any one of claims 1 to 3, wherein data for selecting and displaying the plurality of images is generated. The generator displays images corresponding to all the identifiers in the three-dimensional space.
When one of the images corresponding to the identifier is selected, the claim is characterized in that data for displaying the image corresponding to the selected identifier in a form different from the display form before selection is generated. Item 3. The control device according to item 3. When any one of the images of the plurality of wireless relay devices is selected, the generation unit generates data for displaying the selected image of the wireless relay device in a predetermined area. The control device according to claim 3, wherein the control device is characterized by the above. The generation unit is a region corresponding to an image corresponding to the plurality of identifiers, and has a value corresponding to the plurality of identifiers and different for each of the plurality of identifiers at a position including at least a region not superimposed on the other images. The control device according to any one of claims 1 to 3, wherein data for displaying the first information is generated. The wireless relay device is an access point and
The control device according to any one of claims 1 to 12, wherein the identifier is an SSID. The control device according to any one of claims 1 to 13, wherein the control device has an access point function.

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