KR102481572B1 - Display method, program, display device, measurement device, and measurement display system - Google Patents

Abstract

An object is to provide a display method, a program, a display device, a measurement device, and a measurement display system that enable setting of a frequency channel suitable for wireless communication. The display method includes an acquisition step and a display step. The acquisition step acquires a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The display step displays congestion conditions based on congestion degrees of each of a plurality of specific frequency channels.

Description

Display method, program, display device, measurement device, and measurement display system

The present disclosure generally relates to display methods, programs, display devices, measurement devices, and measurement display systems. The present disclosure relates, in particular, to a display method, program, display device, measurement device, and measurement display system for selecting a frequency channel used for wireless communication.

Patent Literature 1 discloses a lighting system including a plurality of lighting fixtures and a terminal device. In a lighting system, a server device is used to provide setting information of a lighting fixture to a terminal device, and a server device and a terminal device or a server device and a lighting device perform wireless communication.

However, wireless communication is easily affected by the surrounding environment, and there may be cases in which wireless communication between devices cannot be performed depending on a method for selecting a frequency channel for wireless communication. Therefore, in installing a system using radio communication (wireless communication system), it is desirable to select an appropriate frequency channel in consideration of the influence of the surrounding environment on radio communication. However, it is difficult to determine the influence of the surrounding environment on wireless communication by human five senses.

Japanese Unexamined Patent Publication No. 2017-162719

An object is to provide a display method, a program, a display device, a measurement device, and a measurement display system that enable setting of a frequency channel suitable for wireless communication.

A display method of one aspect of the present disclosure includes an acquisition step and a display step. The acquisition step is a step of acquiring a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The displaying step is a step of displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels.

A program of one aspect of the present disclosure is a program for causing one or more processors to execute the display method.

A display device of one aspect of the present disclosure includes an acquisition unit and a display unit. The acquisition unit acquires a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The display unit displays a congestion condition based on the degree of congestion of each of the plurality of specific frequency channels.

A measurement device according to one embodiment of the present disclosure includes a measurement unit and a determination unit. The measurement unit measures radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determining unit determines a degree of congestion for each of the plurality of specific frequency channels based on radio wave intensity.

A measurement display system of one aspect of the present disclosure includes a measurement unit, a determination unit, and a display unit. The measurement unit measures radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determining unit determines a degree of congestion for each of the plurality of specific frequency channels based on radio wave intensity. The display unit displays a congestion condition based on the degree of congestion of each of the plurality of specific frequency channels.

1 is a block diagram of a measurement display system according to an embodiment.
Fig. 2 is a diagram showing an example of a screen displayed by the measurement display system.
3 is a block diagram of an example of a wireless communication system (load control system).
4 is an explanatory diagram of the measurement display system.
5 is a diagram showing an example of a screen displayed by the measurement display system.
Fig. 6 is a diagram showing an example of a screen displayed by the measurement display system.
Fig. 7 is a diagram showing an example of a screen displayed by the measurement display system.
Fig. 8 is a diagram showing an example of a screen displayed by the measurement display system.
9 is a flow chart of the operation of the measurement display system.

1. Embodiments

1. 1 Overview

1 shows a measurement display system 10 that executes the display method of one embodiment. The display method of this embodiment includes an acquisition step and a display step. The acquiring step is a step of acquiring a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The display step is a step of displaying congestion conditions based on congestion levels of each of a plurality of specific frequency channels. The measurement display system 10 displays the display screen D10 shown in FIG. 2 by executing the display method. On the display screen D10, a congestion situation is displayed in the display areas R21 to R26 and the display areas R31 to R36.

According to the display method of this embodiment, congestion conditions are displayed based on congestion degrees of each of a plurality of specific frequency channels. Therefore, the user can judge the influence of the surrounding environment on the wireless communication as an index of congestion. In this way, the user can select a frequency channel suitable for radio communication with certainty. Therefore, according to the display method of this embodiment, it is possible to set a frequency channel suitable for radio communication.

1.2 Details

Hereinafter, the display method of the present embodiment will be described in more detail. The display method of this embodiment is executed by the measurement display system 10 shown in FIG. 1 . The measurement display system 10 can be used when installing a wireless communication system that performs wireless communication using radio waves as a medium. In particular, the measurement display system 10 can be used to determine a frequency channel suitable for use by the wireless communication system in a place where the wireless communication system is scheduled to be installed.

3 shows a load control system 100, which is an example of a wireless communication system. The load control system 100 is a system that controls a load. As shown in FIG. 3 , the load control system 100 includes a management device 200, a controller 300, a plurality of relays 400 (three in this case), a plurality of lighting fixtures 500, A setting system 600 is provided. In the load control system 100, the lighting fixture 500 is a load. That is, the load control system 100 has an aspect as a lighting control system that controls lighting equipment.

The management device 200 is connected to a plurality of relays 400 by a two-wire communication line. The management device 200 collectively or individually controls the operating state of the plurality of relays 400 via a communication line. Here, the operating state includes an on state and an off state, and the management device 200 performs a process of switching the relay 400 from an on state to an off state, and a process of switching the relay 400 from the off state to the on state. do

One or more lighting fixtures 500 are connected to each of the plurality of relays 400 . When it is necessary to individually describe a plurality of lighting devices 500, they are described as lighting devices 501, 502, ..., 508. The plurality of relays 400 are connected to a power source (for example, commercial power supply) that supplies power, and when the relay 400 is in an on state, the relay 400 transfers power from the power source to the relay 400. ) is supplied to the lighting fixture 500 connected to. When the relay 400 is off, the relay 400 does not supply power from the power supply to the lighting fixture 500 connected to the relay 400 .

The controller 300 is connected to the management device 200 by wire. The controller 300 stores setting information including a plurality of groups A1 to A3, and a plurality of lighting fixtures each belonging to any one of the plurality of groups A1 to A3 based on an instruction from the management device 200. 500 is controlled for each of a plurality of groups A1 to A3. For example, the controller 300 controls at least one of dimming and toning of one or more lighting fixtures 500 included in groups A1 to A3 to be controlled based on instructions from the management device 200. .

The some lighting apparatus 500 is comprised so that communication with the setting system 600 and the controller 300 is possible. Each lighting fixture 500 is configured to be capable of communication by a plurality of communication methods. In the present embodiment, a communication method using low-power wireless (specified low-power wireless) wireless communication that does not require a license, and communication using infrared rays having higher directivity than communication using low-power wireless. communication is possible in this way. Here, in low-power wireless (specified low-power wireless) wireless communication, the amount of data that can be transmitted per unit time (eg, 1 second) is larger than that of infrared communication. In addition, for low-power radio, specifications such as frequency band and aerial power to be used depending on the purpose are regulated in each country. In Japan, low-power radios using radio waves in the 920 MHz band or 420 MHz band are stipulated. In the following description, a communication method based on wireless communication using infrared rays is referred to as an infrared communication method, and a communication method based on wireless communication using low-power radio is referred to as a radio wave communication method.

Each lighting fixture 500 receives a signal from the setting system 600 through wireless communication using an infrared communication system. When transmitting information to the setting system 600, each lighting fixture 500 transmits information by wireless communication using a radio wave communication method. In addition, each lighting fixture 500 communicates with the controller 300 by wireless communication using a radio wave communication method.

In the load control system 100, the setting system 600 propagates the first identifier and the second identifier to the controller 300 when changing the group membership for one lighting fixture 500. transmit by means of communication. The first identifier is an identifier of the lighting fixture 500 to which the group is changed. The second identifier is an identifier of a lighting appliance 500 of a group to which the lighting appliance 500 to be changed belongs after being changed. The controller 300 uses the first identifier and the second identifier to change the configuration of the group so that the lighting fixture 500 to be changed belongs to the group to which the lighting fixture 500 of the second identifier belongs, that is, Change setting information. When a new group is included in the setting information, the setting system 600 transmits the identifier (third identifier) of the lighting fixture 500 belonging to the new group to the controller 300 by radio wave communication. The controller 300 generates a new group included in the setting information to which the lighting fixture 500 belongs and updates (changes) the setting information using the third identifier.

In this way, in the load control system 100, the lighting fixture 500, the controller 300, and the setting system 600 communicate by wireless communication using a radio wave communication method. The measurement display system 10 can be used for selection of a frequency channel suitable for wireless communication using a radio wave communication method in the load control system 100 .

As shown in FIG. 1 , the measurement display system 10 includes a display device 20 and a plurality of measurement devices 30 .

As an example, the measurement display system 10 includes six measurement devices 30 . As shown in FIG. 4 , the six measuring devices 30 are installed at points P1 to P6 where the facility 700 is different.

A facility 700 is a place where a wireless communication system (load control system 100) is scheduled to be installed. Points P1 to P6 may be points where devices (lighting fixtures, etc.) for wireless communication in load control system 100 are installed.

In FIG. 4 , a facility 700 represents one floor of a building. Examples of the facility 700 include detached houses, multi-unit dwellings (households, common areas), stores, and buildings (whole buildings and floors). In addition, the facility 700 may include not only a building but also a building and a site on which the building exists, and examples thereof include factories, parks, hospitals, and commercial facilities.

Each measurement device 30 includes a communication unit 31 and a processing unit 32 . The communication unit 31 and the processing unit 32 can be accommodated in the same housing.

The communication unit 31 is a communication interface. The communication unit 31 has a function of connecting the measuring device 30 to the display device 20 so that communication is possible. The communication unit 31 conforms to a predetermined communication protocol. The predetermined communication protocol can be selected from various well-known wired and wireless communication standards (e.g., light wire communication protocol, wireless communication protocol, infrared communication protocol, extended HBS protocol, LonTalk (registered trademark) protocol). Further, examples of wireless communication protocols include standards for specific low-power radios and standards for wireless local area networks (LANs). As standards for specific low-power radios, Wi-SUN (registered trademark) standard and Wi-SUN HAN (registered trademark) are exemplified. As a standard for wireless LAN, Wi-Fi (registered trademark) is exemplified.

The processing unit 32 is configured to control the overall control of the measurement device 30, that is, the communication unit 31. The processing unit 32 may be realized by a computer system including one or more processors (microprocessors) and one or more memories. That is, one or more processors function as the processing unit 32 by executing one or more programs (applications) stored in one or more memories. The program is pre-recorded in the memory of the processing unit 32 here, but may be provided via an electric communication line such as the Internet or recorded on a non-temporary recording medium such as a memory card.

The processing unit 32 includes a measurement unit F31 and a determination unit F32. The measurement unit F31 and the determination unit F32 do not represent a substantial configuration, but represent functions realized by the processing unit 32 .

The measurement unit F31 is configured to measure radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. In particular, in the present embodiment, the measurement unit F31 is configured to measure the radio wave intensity for each of a plurality of specific frequency channels using the communication unit 31 . The radio wave intensity is expressed as the intensity of radio waves (radio signals) received by the communication unit 31 for each of a plurality of specific frequency channels. From another point of view, the radio wave strength can be said to be the strength of the electric field at the place where the communication unit 31 is located.

Here, a plurality of frequency channels are used in radio communication performed by the load control system 100 using radio waves as a medium. As an example, a plurality of frequency channels are included in the 920 MHz band. Specifically, plurality of frequency channels, 923.8, 924.0, 924.2, 924.4, 924.6, 924.8, 925.0, 925.2, 925.4, 925.6, 925.8, 926.0, 926.2, 926.4, 926.6, 926.8, 927.0, 927.4, 927.4 22 frequency channels of 927.8 and 928.0. The plurality of specific frequency channels may be two or more frequency channels selected from these plurality of frequency channels. As an example, the plurality of specific frequency channels may be 11 frequency channels of 923.8, 924.2, 924.6, 925.0, 925.4, 925.8, 926.2, 926.6, 927.0, 927.4, and 927.8. On the other hand, all of the plurality of frequency channels may be used as a plurality of specific frequency channels.

In the present embodiment, the measurement unit F31 measures the radio wave strength a plurality of times for each of a plurality of specific frequency channels. For example, the measuring unit F31 measures the radio wave intensity at regular intervals during a predetermined period. As an example, the predetermined period may be 10 seconds, and the predetermined interval may be 0.1 second. In this case, a measured value of 100 is obtained for the radio wave intensity of one specific frequency channel.

The determination unit F32 is configured to determine the degree of congestion for each of a plurality of specific frequency channels based on radio wave intensity. For each of a plurality of specific frequency channels, the degree of congestion is determined by a congestion rate obtained from radio wave intensity. The congestion rate is expressed as a ratio at which the radio wave intensity exceeds a threshold value when the radio wave intensity is measured a plurality of times. In this embodiment, the congestion rate is expressed as a percentage. As described above, the measurement unit F31 obtains a measurement value of 100 for the radio wave intensity of one specific frequency channel. Here, if the number of measured values equal to or greater than the threshold is 15, the congestion rate is 15%. The threshold value is appropriately determined in consideration of the possibility of an influence on radio communication of radio wave strength exceeding the threshold value. The determination unit F32 sets the congestion rate obtained for each of a plurality of specific frequency channels to its congestion degree.

As shown in FIG. 1 , the display device 20 includes an input/output unit 21, a communication unit 22, and a processing unit 23. The input/output unit 21, the communication unit 22, and the processing unit 23 can be housed in the same housing. The display device 20 is an information terminal, for example, a smartphone. Meanwhile, the display device 20 may be implemented by a portable terminal such as a tablet terminal or a wearable terminal, or a personal computer.

The input/output unit 21 includes an input device for operating the display device 20 . The input device has, for example, a touch pad and/or one or more buttons. In addition, the input/output unit 21 includes an image display device for displaying time information. An image display device is a thin display device such as a liquid crystal display or an organic EL display. On the other hand, a touch panel may be constituted by the touch pad of the input/output unit 21 and the image display device.

The communication unit 22 is a communication interface. The communication unit 22 has a function of connecting the display device 20 to the measurement device 30 so that communication is possible. The communication unit 22 conforms to a predetermined communication protocol. The predetermined communication protocol can be selected from various well-known wired and wireless communication standards (e.g., light wire communication protocol, wireless communication protocol, infrared communication protocol, extended HBS protocol, LonTalk (registered trademark) protocol). Further, examples of wireless communication protocols include standards for specific low-power radios and standards for wireless local area networks (LANs). As standards for specific low-power radios, Wi-SUN (registered trademark) standard and Wi-SUN HAN (registered trademark) are exemplified. As a standard for wireless LAN, Wi-Fi (registered trademark) is exemplified.

The processing unit 23 is configured to control the overall control of the display device 20, that is, the input/output unit 21 and the communication unit 22. The processing unit 23 may be realized by a computer system including one or more processors (microprocessors) and one or more memories. That is, one or more processors function as the processing unit 23 by executing one or more programs (applications) stored in one or more memories. The program is pre-recorded in the memory of the processing unit 23 here, but may be provided via an electric communication line such as the Internet or recorded on a non-temporary recording medium such as a memory card.

The processing unit 23 includes an acquisition unit F21 and a display unit F22. The acquisition unit F21 and the display unit F22 do not represent a substantial configuration, but represent functions realized by the processing unit 23.

The acquisition unit F21 is configured to acquire a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. That is, the acquisition unit F21 acquires, for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium, a degree of congestion determined based on radio wave intensity (acquisition). step) is executed.

In this embodiment, the acquisition unit F21 acquires the congestion degree from one or more measurement devices 30 . In this embodiment, the acquisition unit F21 acquires the congestion degree from the measuring device 30 . The acquisition unit F21 requests the congestion degree to the measurement device 30 via the communication unit 22, and thereby acquires the congestion degree from the measurement device 30. Since the measurement display system 10 includes a plurality of measurement devices 30 , the acquisition unit F21 acquires the degree of congestion from each of the plurality of measurement devices 30 . In the present embodiment, the degree of congestion of each of a plurality of specific frequency channels is acquired from the measuring device 30 at points P1 to P6 in which the facility 700 is different, and the degree of congestion is displayed by the congestion rate. That is, for each of the specific frequency channels, congestion rates at different points P1 to P6 are obtained. In addition, the acquisition unit F21 does not request a congestion degree for each measurement device 30, but requests a congestion degree for each specific frequency channel. That is, the acquisition unit F21 acquires the congestion degree from all measurement devices 30 for one of a plurality of specific frequency channels, and then acquires the congestion degree from all measurement devices 30 for the next specific frequency channel. do. In this way, the acquisition unit F21 acquires the degree of congestion for each of a plurality of specific frequency channels.

The display unit F22 is configured to display a congestion condition based on the degree of congestion of each of a plurality of specific frequency channels. That is, the display unit F22 executes a step for displaying a congestion condition (display step) based on the degree of congestion of each of a plurality of specific frequency channels.

In this embodiment, the display unit F22 displays a congestion situation based on the degree of congestion acquired by the acquisition unit F21. In the present embodiment, the display unit F22 displays representative values of one or more congestion rates at one or more points for each of a plurality of specific frequency channels, instead of displaying all congestion degrees acquired by the acquisition unit F21. do. That is, the congestion condition includes one or more representative values of congestion rates at one or more points for each of a plurality of specific frequency channels. Here, the representative value is the highest value among the congestion rates of 1 or more (the highest congestion rate value). In this embodiment, congestion rates at different points P1 to P6 are obtained for each of the specific frequency channels. Therefore, among the congestion rates at different points P1 to P6, the highest congestion rate is used as the representative value of the congestion rate. Moreover, in the present embodiment, the congestion condition includes a display serving as a criterion for the degree of congestion. A mark serving as a criterion for the degree of congestion is either a recommendation mark indicating a frequency channel that can be recommended for use or a congestion mark indicating a frequency channel that is congested. In this embodiment, the recommended mark is indicated by "○", and the congestion mark is indicated by "Δ". If the congestion degree of a specific frequency channel is less than a prescribed value, a recommended mark is displayed, and if the congestion degree of a specific frequency channel is greater than or equal to a prescribed value, a congestion mark is displayed. In the present embodiment, since the congestion degree at a plurality of points P1 to P6 is obtained for one specific frequency channel, the representative value of the congestion rate is used as the congestion degree for the specific frequency channel. The prescribed value is appropriately determined in consideration of the feasibility of radio communication in a degree of congestion equal to or higher than the prescribed value. For example, the specified value may be set to 10 [%].

In this embodiment, the display unit F22 displays a result display screen D10 (see FIGS. 2 and 5 to 8) for displaying congestion conditions on the image display device of the input/output unit 21. On the other hand, in Fig. 2 and Figs. 5 to 8, symbols and accompanying objects (leaders, arrows, etc.) of the codes are described for explanation of the result display screen D10, and are not included in the result display screen D10 itself. no. On the other hand, in FIGS. 2 and 5 to 8, examples in which congestion conditions are displayed for six specific frequency channels are shown only for easy explanation.

The result display screen D10 will be described below. As shown in Fig. 2, the result display screen D10 includes group boxes G11 to G16, labels L11 to L14, and buttons B21 and B22.

Group boxes G11 to G16 each correspond to a plurality of specific frequency channels. On the other hand, in Fig. 2, group boxes G11 to G16 correspond to six specific frequency channels among a plurality of specific frequency channels. The group boxes G11 to G16 include radio buttons B11 to B16, (1st) display areas R11 to R16, (2nd) display areas R21 to R26, and (3rd) display areas R31 to R36, respectively. .

Radio buttons B11 to B16 are used to select a specific frequency channel to be used in radio communication from a plurality of specific frequency channels.

The first display areas R11 to R16 are used to display identification information for identifying a plurality of specific frequency channels. The identification information is, for example, a name exclusively assigned to a specific frequency channel. 2, "1CH" in the first display area R11, "2CH" in the first display area R12, "3CH" in the first display area R13, "4CH" in the first display area R14, "4CH" in the first display area R15 "5CH" and "6CH" are displayed in the first display area R16.

The second display areas R21 to R26 and the third display areas R31 to R36 indicate congestion conditions of the corresponding specific frequency channels. The second display areas R21 to R26 are used for displaying a congestion degree criterion. In Fig. 2, recommendation marks ("○") are displayed in the second display regions R21, R23, R25, and R26, and congestion marks ("Δ") are displayed in the second display regions R22 and R24. The third display regions R31 to R36 are used for display of the representative value of the congestion rate. In Fig. 2, "1" in the third display area R31, "15" in the third display area R32, "1" in the third display area R33, "100" in the third display area R34, and "100" in the third display area R35 "0" and "2" are displayed in the third display area R36.

The label L11 is arranged corresponding to the radio buttons B11 to B16, and indicates the role of the radio buttons B11 to B16. In Fig. 2, the label L11 displays the character string "Selection". The label L12 is disposed corresponding to the first display regions R11 to R16, and displays a description of the display contents of the first display regions R11 to R16. In Fig. 2, the label L12 indicates a character string "Channel". The label L13 is disposed corresponding to the second display regions R21 to R26, and displays an explanation of the display contents of the second display regions R21 to R26. In Fig. 2, the label L13 displays a character string of "survey result". The label L14 is disposed corresponding to the third display regions R31 to R36, and displays an explanation of the display contents of the third display regions R31 to R36. In Fig. 2, the label L14 indicates the character string "level".

Button B21 is a button for ending the display of the result display screen D10. When button B21 is operated, the display unit F22 ends display of the result display screen D10. Also, if the acquisition unit F21 has not acquired the congestion degree from all of the specified frequency channels, the operation of acquiring the congestion degree is stopped. Button B22 is a button for determining use of a specific frequency channel selected by radio buttons B11 to B16. When button B22 is operated, display device 20 notifies load control system 100 of information about a specific frequency channel being selected by radio buttons B11 to B16. The load control system 100 may set a frequency channel according to a notification from the display device 20 .

The display unit F22 updates the congestion status of the specific frequency channel for which the congestion degree was acquired by the acquisition unit F21 whenever the congestion degree is acquired by the acquisition unit F21. That is, the display unit F22 displays the result display screen D10 even if the acquisition unit F21 does not acquire the congestion degree of all specific frequency channels, and displays the result display screen D10 whenever the congestion degree is acquired in the acquisition unit F21. update More specifically, the display unit F22 displays the result display screen D10 shown in FIG. 5 when the acquisition unit F21 has not acquired the degree of congestion of a certain frequency channel. In the result display screen D10 of Fig. 5, neither the recommendation mark nor the congestion mark is displayed in the second display areas R21 to R26, and the degree of congestion is not displayed in the third display areas R31 to R36. That is, the congestion situation is not displayed on the result display screen D10. Then, the display unit F22 updates the congestion condition of the specific frequency channel for which the congestion degree was acquired by the acquisition unit F21 whenever the congestion degree is acquired by the acquisition unit F21. Fig. 6 shows a result display screen D10 when the degree of congestion of a specific frequency channel corresponding to "1CH" and "2CH" is acquired by the acquisition unit F21. As is clear from Fig. 6, in the specific frequency channels corresponding to "1CH" and "2CH", the second display areas R21 and R22 and the third display areas R31 and R32 are updated. That is, a recommendation mark ("○") is displayed in the second display area R21, and a congestion mark ("Δ") is displayed in the second display area R22. Further, "1" is displayed in the third display area R31 and "15" is displayed in the third display area R32. Then, when the degree of congestion of all specific frequency channels is acquired by the acquisition unit F21, as shown in Fig. 2, congestion conditions of all specific frequency channels are displayed.

Further, the display unit F22 is configured to display recommending use of a specific frequency channel having the lowest congestion degree among a plurality of specific frequency channels. In particular, the display unit F22 is configured to display recommending use of a specific frequency channel whose congestion degree is less than a prescribed value and whose congestion degree is the lowest among a plurality of specific frequency channels. That is, the display unit F22 selects a specific frequency channel having the lowest degree of congestion from among a plurality of specific frequency channels whose degree of congestion is less than the prescribed value as a frequency channel recommended for use.

As shown in Fig. 7, the display unit F22 displays a screen D11 showing frequency channels recommended for use. In Fig. 7, the screen D11 is displayed superimposed on the result display screen D10. Screen D11 includes a display area R41 for displaying information on frequency channels recommended for use. For example, as for the degree of congestion (the representative value of the congestion rate in this embodiment), as shown in Fig. 2, the frequency channel of CH1 is "1". The frequency channel of CH2 is "15". The frequency channel of CH3 is "1". The frequency channel of CH4 is "100". The frequency channel of CH5 is "0". The frequency channel of CH6 is "2". In this case, the display unit F22 selects a frequency channel recommended for use (recommended channel) from four frequency channels, namely, CH1, CH3, CH5, and CH6, in which the degree of congestion is less than the specified value (10 in this case). do. In other words, the display section F22 selects a frequency channel recommended for use from frequency channels with a recommendation mark. Here, the frequency channel of CH5 has the lowest degree of congestion (0). Therefore, the display unit F22 selects the frequency channel of CH5 as the frequency channel recommended for use, and on the screen D11, a message such as "5CH is recommended as a result of this confirmation" is displayed in the display area R41 on the screen D11. do.

On the other hand, the display unit F22 is configured to display recommending re-acquisition of the congestion degree of each of the plurality of specific frequency channels when the congestion degree of any of the plurality of specific frequency channels is not less than the specified value. In this case, as shown in Fig. 8, the display unit F22 displays the screen D12 for recommending re-acquisition of the degree of congestion. In Fig. 8, the screen D12 is displayed superimposed on the result display screen D10. The screen D12 includes a display area R42 for displaying a message recommending re-acquisition of the degree of congestion. On screen D12, in display area R42, "There are no channels that can be recommended as a result of this check. Please perform the investigation again.” is displayed. This is because it is considered difficult to stably establish radio communication unless a specific frequency channel whose congestion is less than a prescribed value does not exist. In such a case, acquisition of the degree of congestion of a plurality of specific frequency channels is requested again. On the other hand, in Fig. 8, a screen for recommending re-acquisition of the congestion degree is displayed as screen D12, but a screen for prompting the user to select a desired frequency channel from among a plurality of frequency channels may be displayed instead.

1. 3 actions

Hereinafter, the operation of the measurement display system 10 will be briefly described with reference to FIG. 9 .

First, when an operation for starting display of a congestion situation is executed on the display device 20, the display unit F22 displays the result display screen D10 on the image display device of the input/output unit 21 as shown in FIG. do.

Further, in the display device 20, the acquisition unit F21 transmits a request for a congestion degree of a specified frequency channel to each measurement device 30 (S11).

In the measurement device 30, in response to a request from the acquisition unit F11 of the display device 20, the measurement unit F31 measures the radio wave strength for a specific frequency channel for which congestion is requested (S12), and the determination unit F32 Determines the degree of congestion (congestion rate) (S13). The measurement device 30 transmits the degree of congestion determined by the determination unit F32 to the display device 20 .

In the display device 20, the acquisition unit F21 acquires the degree of congestion of the specified frequency channel from each measurement device 30. Then, the display part F22 displays the congestion situation on the result display screen D10, as shown in FIG.2 and FIG.6, based on the degree of congestion of the specific frequency channel in each measuring device 30 (S14).

Here, if the acquisition unit F21 has not acquired the degree of congestion for all of the specified frequency channels (S15: No), the process returns to step S11. Then, in step S11, the acquisition unit F21 transmits, to each measuring device 30, a request for a congestion degree of a specific frequency channel for which a congestion degree has not yet been acquired.

On the other hand, if the acquisition unit F21 acquires the degree of congestion of all the specified frequency channels (S15: Yes), as shown in Fig. 2, a result display screen D10 displaying congestion conditions for all the specified frequency channels is displayed. Further, the display unit F22 determines whether or not a specific frequency channel whose congestion degree is less than a specified value exists (S16).

Here, if a specific frequency channel whose congestion is less than the specified value exists (S16: Yes), the display unit F22 displays the screen D11 as shown in Fig. 7, and selects a frequency channel recommended for use (recommended channel). It is displayed (S17).

On the other hand, if there is no specific frequency channel whose congestion degree is less than the specified value (S16: No), as shown in Fig. 8, the display unit F22 displays the screen D12 and recommends re-acquisition of the congestion degree (S18).

1.4 Summary

The display device 20 described above includes an acquisition unit F21 and a display unit F22. The acquisition unit F21 is configured to acquire a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The display unit F22 is configured to display a congestion condition based on the degree of congestion of each of a plurality of specific frequency channels. According to this display device 20, it is possible to set a frequency channel suitable for radio communication.

In other words, it can be said that the display device 20 is executing the following method (display method). The display method includes an acquisition step and a display step. The acquiring step is a step of acquiring a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The display step is a step of displaying congestion conditions based on congestion levels of each of a plurality of specific frequency channels. According to this display method, as with the display device 20, it is possible to set a frequency channel suitable for radio communication.

The display method is realized by one or more processors executing a program (computer program). This program is a program for causing one or more processors to execute the display method. According to such a program, it is possible to set a frequency channel suitable for radio communication in the same way as the display method.

In addition, the measurement device 30 described above includes a measurement unit F31 and a determination unit F32. The measurement unit F31 is configured to measure radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determination unit F32 is configured to determine the degree of congestion for each of a plurality of specific frequency channels based on radio wave intensity. According to this measuring device 30, it is possible to set a frequency channel suitable for radio communication.

In other words, it can be said that the measuring device 30 is executing the following method (measurement method). The measurement method includes a measurement step and a determination step. The measurement step is a step of measuring radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determining step is a step of determining the degree of congestion for each of a plurality of specific frequency channels based on radio wave intensity. According to this measurement method, it is possible to set a frequency channel suitable for radio communication, similarly to the measurement device 30 .

The measurement method is realized by one or more processors executing a program (computer program). This program is a program for causing one or more processors to execute the measurement method. According to such a program, it is possible to set a frequency channel suitable for radio communication as in the measurement method.

In addition, the measurement display system 10 described above includes a measurement unit F31, a determination unit F32, and a display unit F22. The measurement unit F31 is configured to measure radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determination unit F32 is configured to determine the degree of congestion for each of a plurality of specific frequency channels based on radio wave intensity. The display unit F22 is configured to display a congestion condition based on the degree of congestion of each of a plurality of specific frequency channels. According to this measurement display system 10, it is possible to set a frequency channel suitable for radio communication.

In other words, it can be said that the measurement display system 10 is executing the following method (measurement display method). The measurement display method includes a measurement step, a decision step, and a display step. The measurement step is a step of measuring radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determining step is a step of determining the degree of congestion for each of a plurality of specific frequency channels based on radio wave intensity. The display step is a step of displaying congestion conditions based on congestion levels of each of a plurality of specific frequency channels. According to this measurement display method, as in the measurement display system 10, it is possible to set a frequency channel suitable for radio communication.

The measurement display method is realized by one or more processors executing a program (computer program). This program is a program for causing one or more processors to execute the measurement display method. According to such a program, it is possible to set a frequency channel suitable for radio communication, similarly to the measurement display method.

2. Variations

An embodiment of the present disclosure is not limited to the above embodiment. The above embodiment can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. Modifications of the above embodiment are enumerated below.

In the above embodiment, each measurement device 30 obtains one congestion rate for each specific frequency channel. In this case, the congestion degree corresponds to the congestion rate. However, the congestion degree may be a sequence including congestion rates of 2 or more, or may be a value calculated from congestion rates of 2 or more. In one modified example, each measurement device 30 may obtain a plurality (two or more) congestion rates for each specific frequency channel. That is, each measurement device 30 may obtain the congestion rate multiple times for the same frequency channel. In this case, a plurality of congestion rates at the same point are obtained for each of a plurality of specific frequency channels. The congestion condition may also include representative values of a plurality of congestion rates at the same point for each of a plurality of specific frequency channels.

In the above embodiment, congestion rates at a plurality of points are obtained for each specific frequency channel. The congestion condition displayed on the display unit F22 includes representative values of a plurality of congestion rates obtained at a plurality of different points for each of a plurality of specific frequency channels. In order to obtain the congestion rate at a plurality of points for each specific frequency channel, in the above embodiment, measurement devices 30 are provided at a plurality of points (see P1 to P6 in Fig. 4), respectively. In one variant, the congestion rate may be obtained at a plurality of points using a single measuring device 30 . That is, it is not essential to use a plurality of measurement devices 30 .

In short, the congestion condition may include one or more representative values of congestion rates at one or more points for each of a plurality of specific frequency channels. The representative value may be a value obtained mathematically, such as an average value of a plurality of congestion rates, a mode value, a minimum value, and a maximum value. As for the representative value, considering the reliability of establishment of radio communication, it is preferable to use the highest value, that is, the value at the most congested time.

In the above embodiment, the degree of congestion is evaluated by the congestion rate. Here, the congestion rate is expressed as a ratio at which the radio wave intensity exceeds a threshold value when the radio wave intensity is measured a plurality of times. In one modified example, the congestion rate may be a representative value of the radio wave intensity when the radio wave intensity is measured a plurality of times. The representative value may be a value obtained mathematically, such as an average value of a plurality of congestion rates, a mode value, a minimum value, and a maximum value. However, as for the congestion rate, it is more effective for setting a frequency channel suitable for wireless communication when expressed as a ratio at which the radio wave intensity exceeds a threshold value when the radio wave intensity is measured a plurality of times.

In the above embodiment, the congestion condition includes one or more representative values of congestion rates at one or more points for each of a plurality of specific frequency channels. However, the congestion condition may include the congestion degree itself instead of the representative value of the congestion rate. In addition, the congestion condition includes a display serving as a standard for the congestion degree, but does not necessarily need to include a display serving as a standard for the congestion degree.

In the above embodiment, the congestion degree is obtained from the measuring device 30, but in the wireless communication system (load control system 100), devices that perform wireless communication (the lighting fixture 50, the controller 300, the setting system ( 600) etc.) may have a function as the measuring device 30. In addition, in the wireless communication system, not only the equipment that performs wireless communication, but also the equipment included in the wireless communication system may have a function as the measuring device 30.

In one modified example, instead of acquiring the congestion degree from the measurement device 30, the acquisition unit F21 may acquire the congestion degree based on the radio wave intensity obtained from the measurement device 30. That is, the acquisition unit F21 may have a function as the determination unit F32.

In one modified example, the display device 20 and the measurement device 30 may be a single device. That is, the display device 20 may have a function as the measuring device 30 . In this case, the acquisition unit F21 can be omitted.

In one modification, the plurality of frequency channels may be appropriately determined in consideration of a frequency band (eg, 420 MHz) used in radio communication, not limited to the 920 MHz band. Further, the interval between frequency channels is not limited to 0.2 MHz and may be appropriately determined depending on the frequency band.

In one modified example, the measurement display system 10 may be constituted by a plurality of computers. For example, the functions of the measurement display system 10 (in particular, the measurement unit F31, the determination unit F32, and the display unit F22) may be distributed to a plurality of devices. In addition, at least part of the functions of the measurement display system 10 may be realized by, for example, the cloud (cloud computing).

The execution subject of the measurement display system 10 described above includes a computer system. A computer system has a processor and memory as hardware. When the processor executes the program recorded in the memory of the computer system, the function as the main body of execution of the measurement display system 10 in the present disclosure is realized. The program may be pre-recorded in the memory of the computer system, or may be provided through an electric communication line. In addition, the program may be provided by being recorded on a non-temporary recording medium such as a memory card, an optical disk, or a hard disk drive readable by a computer system. A processor of a computer system is composed of one to a plurality of electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). A field programmable gate array (FGPA), an application specific integrated circuit (ASIC), or a reconfigurable logic device capable of reconfiguring junction relationships inside an LSI or setting up circuit divisions inside an LSI, which is programmed after manufacturing the LSI, is also the same. can be used for this purpose. A plurality of electronic circuits may be integrated into one chip, or may be distributed and provided on a plurality of chips. A plurality of chips may be integrated in one device, or may be distributed and provided in a plurality of devices.

3. the sun

As is clear from the above embodiments and modified examples, the present disclosure includes the following aspects. In the following, reference numerals are attached in parentheses only to clarify correspondence with the embodiments.

A 1st aspect includes an acquisition step and a display step as a display method. The acquisition step is a step of acquiring a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The displaying step is a step of displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels. According to this aspect, it is possible to set a frequency channel suitable for radio communication.

The second aspect is based on the display method of the first aspect. In the second aspect, in the display step, a display recommending use of a specific frequency channel having the lowest degree of congestion among the plurality of specific frequency channels is performed. According to this aspect, selection of a frequency channel suitable for radio communication becomes easy.

The third aspect is based on the display method of the first or second aspect. In the third aspect, in the display step, a display recommending use of a specific frequency channel whose congestion degree is less than a specified value and whose congestion degree is the lowest among the plurality of specific frequency channels is recommended. According to this aspect, setting of an appropriate frequency channel is facilitated by radio communication.

The fourth aspect is based on the display method of the third aspect. In the fourth aspect, in the display step, when the congestion degree of any one of the plurality of specific frequency channels is not less than the specified value, a display recommending re-acquisition of each congestion degree of the plurality of specific frequency channels is performed. According to this aspect, it is possible to set an appropriate frequency channel by radio communication.

A fifth aspect is based on the display method of any one of the first to fourth aspects. In the fifth aspect, the display step updates the congestion status of the specific frequency channel for which the congestion degree was obtained in the acquisition step whenever the congestion degree is acquired in the acquisition step. According to this aspect, it is possible to set an appropriate frequency channel through radio communication without waiting for the acquisition of the degree of congestion to end.

A 6th aspect is based on the display method of any one of the 1st - 5th aspect. In the sixth aspect, for each of the plurality of specific frequency channels, the degree of congestion is determined by a congestion rate obtained from radio wave intensity. According to this aspect, it is possible to set an appropriate frequency channel by radio communication.

The seventh aspect is based on the display method of the sixth aspect. In the seventh aspect, the congestion condition includes one or more representative values of congestion rates at one or more points for each of the plurality of specific frequency channels. According to this aspect, it is possible to set an appropriate frequency channel by radio communication.

The eighth aspect is based on the display method of the sixth aspect. In the eighth aspect, the congestion condition includes a plurality of representative values of congestion rates at the same point for each of the plurality of specific frequency channels. According to this aspect, it is possible to set an appropriate frequency channel by radio communication.

The ninth aspect is based on the display method of the sixth aspect. In the ninth aspect, the congestion condition includes a plurality of representative values of congestion rates obtained for a plurality of different points for each of the plurality of specific frequency channels. According to this aspect, it is possible to set an appropriate frequency channel by radio communication.

A tenth aspect is based on any one of the display methods of the seventh to ninth aspects. In the tenth aspect, the representative value is the highest value. According to this aspect, it is possible to set an appropriate frequency channel by radio communication.

An 11th aspect is based on the display method of any one of the 6th - 10th aspects. In the eleventh aspect, the congestion rate is expressed as a ratio at which the radio wave intensity exceeds a threshold value when the radio wave intensity is measured a plurality of times. According to this aspect, it is possible to set an appropriate frequency channel by radio communication.

A twelfth aspect is a program for causing one or more processors to execute the display method of any one of the first to eleventh aspects. According to this aspect, it is possible to set a frequency channel suitable for radio communication.

A thirteenth aspect is equipped with the acquisition part F21 and the display part F22 as the display apparatus 20. The acquisition unit F21 is configured to acquire a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The display unit F22 is configured to display a congestion condition based on the degree of congestion of each of the plurality of specific frequency channels. According to this aspect, it is possible to set a frequency channel suitable for radio communication.

A 14th aspect is equipped with the measuring device 30, the measuring part F31, and the determining part F32. The measurement unit F31 is configured to measure radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determination unit F32 is configured to determine a degree of congestion for each of the plurality of specific frequency channels based on radio wave intensity. According to this aspect, it is possible to set a frequency channel suitable for radio communication.

A fifteenth aspect is the measurement display system 10, which includes a measurement unit F31, a determination unit F32, and a display unit F22. The measurement unit F31 is configured to measure radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium. The determination unit F32 is configured to determine a degree of congestion for each of the plurality of specific frequency channels based on radio wave intensity. The display unit F22 is configured to display a congestion condition based on the degree of congestion of each of the plurality of specific frequency channels. According to this aspect, it is possible to set a frequency channel suitable for radio communication.

10: Measurement display system
20: display device
30: measuring device
F21: Acquisition Department
F22: Display
F31: Instrumentation
F32: decision section

Claims (17)

An acquisition step of acquiring a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium;
A display step of displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels
including,
In the display step, among the plurality of specific frequency channels, a display recommending use of a specific frequency channel having a congestion degree less than a specified value and having the lowest congestion degree is performed.
display method. delete delete According to claim 1,
In the display step, if the congestion degree of any of the plurality of specific frequency channels is not less than the specified value, display recommending re-acquisition of each congestion degree of the plurality of specific frequency channels.
display method. According to claim 1,
The display step updates the congestion status of the specific frequency channel for which the congestion degree was obtained in the acquisition step whenever the congestion degree is acquired in the acquisition step.
display method. An acquisition step of acquiring a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium;
A display step of displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels
including,
For each of the plurality of specific frequency channels, the degree of congestion is determined by a congestion rate obtained from radio wave strength;
The congestion situation includes representative values of a plurality of congestion rates obtained for a plurality of different points for each of the plurality of specific frequency channels,
display method. According to claim 6,
The congestion situation includes, for each of the plurality of specific frequency channels, one or more representative values of congestion rates at one or more points,
display method. According to claim 6,
The congestion situation includes representative values of a plurality of congestion rates at the same point for each of the plurality of specific frequency channels.
display method. delete According to claim 6,
The representative value is the highest value,
display method. According to claim 6,
The congestion rate is expressed as a ratio at which the radio wave intensity exceeds a threshold value when the radio wave intensity is measured a plurality of times.
display method. A program recorded on a computer-readable recording medium, for causing one or more processors to execute the display method of any one of claims 1, 4 to 8, 10 and 11,
program. an acquisition unit that acquires a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium;
A display unit for displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels
to provide,
The display unit displays a display recommending use of a specific frequency channel having a congestion degree less than a specified value and having the lowest congestion degree among the plurality of specific frequency channels.
display device. a measuring unit that measures radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium;
A determination unit for determining a degree of congestion for each of the plurality of specific frequency channels based on radio wave intensity
to provide,
A congestion situation is displayed on a display unit based on the degree of congestion of each of the plurality of specific frequency channels;
For each of the plurality of specific frequency channels, the degree of congestion is determined by a congestion rate obtained from radio wave intensity;
The congestion situation includes, for each of the plurality of specific frequency channels, representative values of a plurality of congestion rates obtained for a plurality of different points,
instrumentation. a measurement unit for measuring radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium;
a determination unit for determining a degree of congestion for each of the plurality of specific frequency channels based on radio wave intensity;
A display unit for displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels
to provide,
The display unit displays a display recommending use of a specific frequency channel having a congestion degree less than a specified value and having the lowest congestion degree among the plurality of specific frequency channels.
Instrumentation display system. an acquisition unit that acquires a degree of congestion determined based on radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium;
A display unit for displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels
to provide,
For each of the plurality of specific frequency channels, the degree of congestion is determined by a congestion rate obtained from radio wave intensity;
The congestion situation includes, for each of the plurality of specific frequency channels, representative values of a plurality of congestion rates obtained for a plurality of different points,
display device. a measuring unit that measures radio wave intensity for each of a plurality of specific frequency channels included in a plurality of frequency channels used for radio communication using radio waves as a medium;
a determination unit for determining a degree of congestion for each of the plurality of specific frequency channels based on radio wave intensity;
A display unit for displaying a congestion situation based on the degree of congestion of each of the plurality of specific frequency channels
to provide,
For each of the plurality of specific frequency channels, the degree of congestion is determined by a congestion rate obtained from radio wave strength;
The congestion situation includes representative values of a plurality of congestion rates obtained for a plurality of different points for each of the plurality of specific frequency channels,
Instrumentation display system.

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