JP2011114416A - Radio wave state display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio wave state display device for generally and visually displaying radio wave states of respective radio devices in a multi-channel radio communication system. <P>SOLUTION: The radio wave state display device includes: a device information storage part 2a for storing radio device information including an installation location, a type and an identification code related to the plurality of radio devices that is input by a user; an image display device 4 provided with a display screen 4a; a radio communication part 11a capable of transmitting and receiving signals by radio waves by a plurality of channels of different frequencies among the plurality of radio devices; a digitizing processing part 3a for digitizing the radio wave states of the plurality of channels for each of the plurality of radio devices using electric field strength values of the plurality of channels transmitted from the plurality of radio devices and received by the radio communication part 11a; and a display processing part 3b for visualizing the radio wave states of the plurality of radio devices for the plurality of channels using the digitized data and simultaneously displaying them on the display screen 4a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention provides a radio wave state display device that comprehensively and visually displays a radio wave state of each wireless device in a multi-channel wireless communication system, and an arrangement place of a wireless device, a wireless relay device, and the like according to a radio wave environment. The present invention relates to a wireless device connection support program that can be easily determined.

  For example, multi-channel wireless communication systems using radio waves of multiple frequencies such as ZigBee are expected to be used as wireless communication systems for remote control of home appliances and various devices in factories because of their low power consumption and low cost. Yes. In the case of ZigBee, the maximum transmission distance is a straight line as short as about 30 m, and the use frequency band is 2.4 GHz, which overlaps the frequency band of a microwave oven or a wireless LAN. Therefore, the actual transmission distance may be further shortened due to electromagnetic noise generated from other electrical devices or interference with other wireless communication systems.

  When such a wireless communication system is actually installed, an operator determines the arrangement of wireless devices empirically while looking at a sketch at the work site. If the arrangement of the wireless master unit and the wireless slave unit is determined in advance and a large change in arrangement is not possible, it is required to efficiently arrange a smaller number of relay devices. In the conventional method that relies on the experience of the worker, the arrangement and radio wave state of the wireless device are not converted into data, and it is difficult to feed back to the subsequent installation work of the wireless communication system.

  Patent Document 1 discloses a radio environment of a planned installation location, for example, a loss rate in a transmission path, a throughput, and a frequency of occurrence of a communication error before actually placing a wireless device using a simulated wireless terminal device and an operation device. A technique for evaluating the above is disclosed. As described above, if the radio wave environment is evaluated in advance, it is possible to determine the placement location of the device more efficiently than when changing the placement of the device while repeating trial and error. In this case, it is necessary to evaluate each channel, and it is difficult to comprehensively evaluate a plurality of channels.

JP 2008-228186 A

  The present invention has been made to solve the above-described problems of the conventional example, and a radio wave state display device that comprehensively and visually displays a radio wave state of each wireless device in a multi-channel wireless communication system, and An object of the present invention is to provide a wireless device connection support program that can easily determine the location of a wireless device, a wireless relay device, or the like according to a radio wave environment.

  In order to achieve the above object, the invention of claim 1 is a radio wave state display device, comprising: an input unit operated by a user; an installation location for a plurality of wireless devices input by the user via the input unit; Signals can be transmitted and received by radio waves on a plurality of channels with different frequencies between a device information storage unit that stores wireless device information including an identification code, an image display unit that includes a display screen, and a plurality of wireless devices. Using the field strength values of the plurality of channels transmitted from the wireless communication unit and the plurality of wireless devices and received by the wireless communication unit, the radio wave states of the plurality of channels are determined for each of the plurality of wireless devices. Using the digitization processing unit for digitizing and the data digitized by the digitization processing unit, the radio wave states of the plurality of wireless devices are determined for each of the plurality of channels. And Satoshika, characterized by comprising a display processing unit for simultaneously displaying on the display screen.

  According to a second aspect of the present invention, in the radio wave state display device according to the first aspect, the numerical processing unit contours the radio wave states of the plurality of channels, and the display processing unit includes the radio wave state of the plurality of channels. An image showing the above is made translucent, further two-dimensional or three-dimensional, and displayed on the display screen in an overlapping manner.

  According to a third aspect of the present invention, in the radio wave state display device according to the first aspect, the numerical processing unit contours the radio wave states of the plurality of channels, and the display processing unit includes the radio wave state of the plurality of channels. An image indicating the above is made translucent, further three-dimensional, and displayed on the display screen while being shifted by a predetermined distance in a predetermined direction.

  According to a fourth aspect of the present invention, in the radio wave state display device according to the second or third aspect, the images indicating the radio wave states of the respective channels to be translucent are displayed with different transparency. Features.

  According to a fifth aspect of the present invention, in the radio wave state display device according to the second or third aspect, the images indicating the radio wave states of the respective channels to be translucent are displayed in different colors. Features.

  According to a sixth aspect of the present invention, in the radio wave state display device according to the first aspect, the numerical processing unit converts the radio wave states of the plurality of channels into a two-dimensional graph, and the display processing unit includes the plurality of channels. A graph image indicating a radio wave state is displayed on the display screen while being shifted by a predetermined distance in the vertical direction of the screen.

  According to a seventh aspect of the present invention, in the radio wave state display device according to the sixth aspect, the image of each channel or the individual graph images indicating the radio wave states of the plurality of wireless devices are displayed in different colors on the display screen. It is displayed.

  According to an eighth aspect of the present invention, in the radio wave state display device according to any one of the first to seventh aspects, when the user inputs the number of newly added wireless devices via the input unit. The numerical processing unit determines an optimal installation location of a newly added wireless device by calculation, and the display processing unit is on the display screen corresponding to the position determined by the numerical processing unit. A radio wave state of the newly added wireless device obtained by calculation is visualized and displayed at the position.

  A ninth aspect of the present invention is the radio wave state display device according to any one of the first to eighth aspects, wherein the first or the second state displayed on the display screen by a user operating the input unit. An image showing the radio wave conditions of all channels for a plurality of wireless devices can be moved to any position on the display screen.

  A tenth aspect of the present invention is the radio wave state display device according to any one of the first to ninth aspects, wherein the one or more channels on which the radio wave state is simultaneously displayed on the display screen are determined by a user. It is an arbitrary channel among the selected plurality of channels.

  According to an eleventh aspect of the present invention, in the radio wave state display device according to the third aspect, the order of the images indicating the radio wave states of the respective channels displayed on the display screen while being shifted by a predetermined distance in the predetermined direction is changed. It is possible.

  A twelfth aspect of the present invention is the radio wave state display device according to any one of the first to eleventh aspects, wherein the plurality of wireless devices are connected on the display screen in a tree topology. The connection state of the plurality of wireless devices is visually displayed.

  A thirteenth aspect of the present invention is the radio wave state display device according to any one of the first to twelfth aspects of the present invention, wherein the image displayed on the display screen at the time point specified by the user via the input unit. An image data storage unit for storing data is further provided.

  The invention of claim 14 is a wireless device connection support program for confirming the connection status of wireless devices by being installed and executed in a computer device, wherein a user is provided with installation locations and identification codes of a plurality of wireless devices. Displaying on the display screen of the display device an image for inputting wireless device information including the wireless device information including installation locations and identification codes regarding the plurality of wireless devices input by the user in the storage device A step of storing, a step of causing a plurality of wireless devices to transmit and receive signals on a plurality of channels having different frequencies with respect to a wireless communication device that transmits and receives signals using radio waves, and a plurality of wireless devices Measurement of field strength for each of the plurality of channels measured and transmitted to the wireless communication device Receiving the measured values of the field strengths of the plurality of channels for each of the plurality of wireless devices received in a storage device; and the field strength values of the plurality of channels stored in the storage device. Using the step of digitizing the radio wave states of the plurality of channels for each of the plurality of wireless devices, and using the digitized data, the plurality of channels for each of the plurality of wireless devices. The step of visualizing the radio wave state and simultaneously displaying it on the display screen is provided.

  According to a fifteenth aspect of the present invention, in the wireless device connection support program according to the fourteenth aspect, in the step of digitizing the radio wave states of the plurality of channels, the radio wave states of the plurality of channels are contoured, The step of visualizing the radio wave condition and simultaneously displaying it on the display screen is to make the image indicating the radio wave condition of each channel translucent, further two-dimensional or three-dimensional, and display the image on the display screen in an overlapping manner. It is characterized by.

  According to a sixteenth aspect of the present invention, in the wireless device connection support program according to the fourteenth aspect, in the step of digitizing the radio wave states of the plurality of channels, the radio wave states of the plurality of channels are contoured, The step of visualizing the radio wave condition and displaying it on the display screen at the same time makes the image showing the radio wave condition of each channel translucent, further three-dimensionalized, and superimposed on the display screen while shifting by a certain distance in a predetermined direction. It is characterized by being displayed.

  According to a seventeenth aspect of the present invention, in the wireless device connection support program according to the fourteenth aspect, the step of digitizing the radio wave states of the plurality of channels forms a two-dimensional graph of the radio wave states of the plurality of channels. The step of visualizing the radio wave conditions of the channels and simultaneously displaying them on the display screen includes displaying a graph image indicating the radio wave conditions of the plurality of channels on the display screen while shifting a certain distance in the vertical direction of the screen. Features.

  The invention according to claim 18 is the wireless device connection support program according to any one of claims 14 to 17, wherein the display screen displays an image for allowing the user to input the number of wireless devices newly added. In accordance with the number of units input by the user, the step of determining the optimal installation location of the newly added wireless device by calculation, and the position on the display screen corresponding to the determined position The method further comprises the step of visualizing and displaying the radio wave state of the newly added wireless device.

  According to a nineteenth aspect of the present invention, in the wireless device connection support program according to any one of the fourteenth to eighteenth aspects, the plurality of wireless devices displayed on the display screen in response to a user operation. The method further includes a step of moving an image showing the radio wave state of all the channels to an arbitrary position on the display screen.

  According to a twentieth aspect of the present invention, in the wireless device connection support program according to any one of the fourteenth to nineteenth aspects, data of an image displayed on the display screen is stored in response to a user operation. The method further includes the step of storing the information in the apparatus.

  According to the first aspect of the present invention, since the field strength values of the plurality of channels are transmitted from the plurality of wireless devices to the wireless communication unit, the radio wave state display device is converted into electronic data for each channel of each wireless device. Electric field strength values can be obtained. Then, using these electric field strength values, the radio wave state of a space where a plurality of wireless devices are installed can be graphed and visually displayed. Furthermore, since the radio wave conditions for a plurality of channels are simultaneously displayed on the display screen of the display device, the user (installer) can comprehensively check the radio wave conditions of each wireless device in the multi-channel wireless communication system. And can be visually recognized. Furthermore, the user can easily determine the location of the wireless device, the wireless relay device, etc. according to the radio wave environment.

  According to the invention of claim 2, the radio wave states of a plurality of channels are contoured and displayed two-dimensionally or three-dimensionally, and the images indicating the two-dimensional or three-dimensional radio wave states are made translucent. Since it is displayed in an overlapping manner on the display screen, the user only has to select the location where the contour lines are rough and select the wireless device (relay device), and easily place the wireless device or the wireless relay device. Can be determined. In this case, since the contour lines indicating the radio wave states of the plurality of channels are displayed in an overlapping manner, the user can recognize the overall radio wave states of the plurality of channels based on the density of the image. For example, a relay device or the like may be installed at a location with a low concentration.

  According to the third aspect of the present invention, since the images showing the radio wave states of a plurality of channels are displayed slightly shifted, the user can visually recognize the density of the contour lines showing the radio wave states of each channel. It is possible to visually recognize whether the radio wave condition of each channel is good or bad.

  According to the invention of claim 4, since the images showing the radio wave states of the respective translucent channels are displayed with different transparency, the lower layer image can be clearly seen even in places where the contour lines are dense. Can be recognized. Therefore, for example, when only a specific channel of a specific wireless device is used, particularly when the radio wave condition is good, the location and channel of the wireless device can be visually recognized.

  According to the invention of claim 5, since the images showing the radio wave states of the translucent channels are displayed in different colors, the portions where the contour lines are dense differ from the other portions. Can be recognized as a color. Therefore, the user can recognize the overall radio wave states of a plurality of channels by changing the color of the image. For example, a relay device or the like may be installed at a location where the color has not changed.

  According to the invention of claim 6, the radio wave states of a plurality of channels are formed into a two-dimensional graph and displayed on the display screen while being shifted by a certain distance in the vertical direction of the screen. It can be recognized as a graph, and whether the radio wave condition of each channel is good or bad can be visually recognized.

  According to the seventh aspect of the present invention, the image of each channel or the individual graph images indicating the radio wave states of a plurality of wireless devices are displayed on the display screen in different colors. It is possible to easily visually recognize a channel having a particularly excellent radio wave condition from the radio wave conditions of the channel.

  According to the invention of claim 8, when the user inputs the number of newly added wireless devices, the installation location of the newly added wireless device is automatically displayed on the display screen. The radio wave state of a newly added wireless device estimated from the surrounding radio wave state is visualized and displayed. That is, since the electric field strength value of each channel of each wireless device is converted into electronic data (digitized), it is possible to specify the optimum installation location of the added wireless device by performing arithmetic processing on the data. it can.

  According to the ninth aspect of the present invention, it is possible to simulate and display on the display screen how the radio wave state changes when the position of an existing or newly added wireless device is moved.

  According to the invention of claim 10, when there are many usable channels, it is possible to select an arbitrary channel and simplify the display on the display screen.

  According to the eleventh aspect of the present invention, by changing the order of overlapping images displayed on the display screen, the overall image on the display screen changes. Therefore, by repeating the order of images, the user can visually recognize a channel with a better radio wave condition.

  According to the invention of claim 12, when a plurality of wireless devices are connected in a tree topology, the connection state between the wireless devices can be visually recognized. It is possible to easily recognize which wireless device is moved, which wireless device should be moved, or which wireless device should not be moved.

  According to the invention of claim 13, since the data of the image displayed on the display screen at the time designated by the user is stored, the past data accumulated in the image data storage unit is referred to later, and thereafter It is also possible to provide feedback to the installation work of the wireless communication system.

  According to the fourteenth to twentieth aspects of the present invention, the radio wave state display device can be realized simply by installing and executing a wireless device connection support program in an existing device such as a personal computer connected to the wireless communication device. Can do.

The figure which shows an example of the structure of the radio | wireless communications system by the radio wave state display apparatus which concerns on one Embodiment of this invention, and a some radio | wireless apparatus, and its connection state. The figure which shows the 1st example of a display which visualized and simultaneously displayed the radio wave state of the some radio | wireless apparatus about the some channel displayed on the display screen of the said radio wave state display apparatus. The figure which shows the 2nd display example which visualized and displayed simultaneously the radio wave state of the some radio | wireless apparatus about the said some channel. The figure which shows the 3rd display example which visualized the electromagnetic wave state of the said radio | wireless apparatus. The figure which shows the 4th example of a display which visualized the electromagnetic wave state of the said radio | wireless apparatus. The block block diagram of the said electromagnetic wave state display apparatus. 6 is a flowchart showing a basic operation of the radio wave state display device or a wireless device connection support program according to the present invention. The figure which displays the connection state of a wireless device visually on the image which shows the electromagnetic wave state of a wireless device, and shows the other example of a display. The figure which shows the example of a display which visualized the radio wave state of the position which should add a wireless device, and the wireless device after a wireless device addition. The figure which shows the example of a display which visualized the electromagnetic wave state of the radio | wireless apparatus after moving a radio | wireless apparatus.

  A radio wave state display device and a wireless device connection support program according to an embodiment of the present invention will be described. The radio wave state display device 1 is a device that can visually display the radio wave states of a plurality of wireless devices constituting a multi-channel wireless communication system, and the wireless device connection support program is an existing personal computer connected to the wireless communication device. The radio wave state display device 1 can be realized by installing and executing it on a computer 10 or the like.

  FIG. 1 shows a configuration of a wireless communication system including a plurality of wireless devices that transmit / receive signals to / from the radio wave state display device 1 through wireless communication using radio waves. The radio wave state display device 1 includes a personal computer 10 and a wireless communication device (wireless master device) 11 connected thereto. The wireless device does not have a wireless communication function with the wireless relay devices 21 and 22 for receiving a signal transmitted from another wireless device and further transferring the received signal to another wireless device. While wired to other devices (controlled devices or wired devices) 31-33, receiving signals transmitted from other wireless devices and transferring the received signals to the other devices 31-33, The wireless communication devices 23 and 24 that transmit signals output from the other devices 31 to 33 to other wireless devices by wireless communication, and the signals transmitted from the other wireless devices are received, and the signals are received according to the received signals. The controlled devices 25 and 26 having a wireless communication function for executing a certain function and transmitting a signal output by itself to other wireless devices by wireless communication are included. In addition, these apparatuses are examples, and the kind and number are not specifically limited.

  FIG. 2 shows a first display example in which radio wave states of a plurality of wireless devices are visualized for each of a plurality of channels and simultaneously displayed on a display screen. In FIG. 2, for example, for three channels CH1, CH2, and CH3, the radio wave state is three-dimensionally measured using the measured electric field strength values (field strength values) transmitted from the plurality of wireless devices 21 to 26 to the wireless communication device 11. Is visually visualized. The images indicating the radio wave states of the channels CH1, CH2, and CH3 are displayed while being shifted by a certain distance in the vertical direction of the display screen, and do not overlap. In this case, since the images indicating the radio wave states of the channels CH1, CH2, and CH3 do not overlap, it is not always necessary to be translucent. In addition, the user can arbitrarily select the channel number, the number of channels, and the display order of the image indicating the radio wave state displayed on the display screen. Furthermore, in order to identify the channel number, images indicating the radio wave state may be displayed in different colors.

  In the second display example shown in FIG. 3, images indicating the radio wave states of the channels CH1, CH2, and CH3 are displayed so as to be partially overlapped by being shifted by a certain distance in the vertical (vertical) direction of the display screen. Further, in the third display example shown in FIG. 4, images indicating the radio wave states of the channels CH1, CH2, and CH3 are displayed so as to be completely overlapped. In this way, by displaying the contour lines of the radio wave states of a plurality of channels in an overlapping manner, the user can recognize the overall radio wave states of the plurality of channels based on the color shade of the image. For example, a relay device or the like may be installed at a location with a low concentration. Furthermore, users can visually recognize the density of contour lines indicating the radio wave status of each channel by displaying images showing the radio wave status of multiple channels on the display screen while shifting them by a certain distance in a predetermined direction. It is possible to visually recognize whether the radio wave condition of each channel is good or bad. Furthermore, when displaying the images indicating the radio wave conditions of the channels CH1, CH2, and CH3 in a completely overlapped manner, the density of the contour lines can be reduced by the density of the image even in a two-dimensional image viewed from the top. Can be visually recognized.

  In these cases, the images indicating the radio wave states of the channels CH1, CH2, and CH3 partially or completely overlap with each other, and therefore must be translucent. At that time, the images indicating the radio wave states may be displayed with different transparency, or may be displayed with different colors. By displaying images indicating the radio wave state of each channel with different transparency levels, it is possible to clearly recognize lower layer images even in places where the contour lines are dense. Therefore, for example, when only a specific channel of a specific wireless device is used, particularly when the radio wave condition is good, the location and channel of the wireless device can be visually recognized. In addition, by displaying the image indicating the radio wave state of each channel in a different color, a portion where the contour lines are dense can be recognized as a color different from the other portions. Therefore, the user can recognize the overall radio wave states of a plurality of channels by changing the color of the image. For example, a relay device or the like may be installed at a location where the color has not changed. Note that the level of transparency or color in which an image showing the radio wave state of which channel is displayed may be arbitrarily selected by the user, or the electric field strength of a plurality of wireless devices for each channel is measured. The radio wave state display device may automatically determine the value based on the maximum value or the average value.

  In the fourth display example shown in FIG. 5, the images indicating the radio wave states of the channels CH1, CH2, and CH3 are formed into a two-dimensional graph, and the graph images are shifted by a certain distance in the vertical (vertical) direction of the display screen and do not overlap. Is displayed. More specifically, a state in which an image showing the radio wave state of each channel CH1, CH2, CH3 shown in FIG. 2 is viewed from an arbitrary position in the horizontal direction is shown. You may display the image of each channel, or each graph which shows the radio wave state of a several radio | wireless apparatus on a display screen with a respectively different color. In this way, by displaying the radio wave status of multiple channels in a two-dimensional graph, the user can recognize the contour map of the radio wave status as a cross-sectional view, and visually recognize whether the radio wave status of each channel is good or bad can do. Then, the user can easily visually recognize a channel (for example, CH3 in the case of FIG. 5) having a particularly excellent radio wave state from among the radio wave states of a plurality of graphed channels. Note that the two-dimensional graph is not limited to the diagram as shown in FIG. 5, and may be a bar graph or other graph representing the electric field strength value.

  FIG. 6 shows a block configuration of the radio wave state display device 1. The radio wave state display device 1 includes, for example, a storage device 2 configured by a non-volatile memory such as a hard disk device, an arithmetic processing device 3 configured by a CPU, a ROM, a RAM, the wireless communication device 11, and a display screen 4a. And a display device 4 such as a liquid crystal monitor device and an input device 5 having, for example, a keyboard and a touch panel (input unit 5a). The radio wave state display device 1 may be a dedicated device integrally having these functions, or may be the existing personal computer 10 connected to the wireless communication device 11 as described above.

  The storage device 2 includes a device information storage unit 2a that stores wireless device information including the installation location, type, and identification code of the wireless device input by the user, and each of the wireless devices 21 to 26 collected via the wireless communication device 11. It functions as a measured value storage unit 2b for storing measured values of electric field strength and an image data storage unit 2c for storing an image displayed on the display screen at an arbitrary time.

  The arithmetic processing device 3 uses a plurality of wireless devices 21 to 26 by using the field strength values of the plurality of channels CH1, CH2, CH3... CHN transmitted from the plurality of wireless devices 21 to 26 and received by the wireless communication unit 11. 26, each of the channels CH1, CH2, CH3,... Is digitized by using the digitization processing unit 3a that digitizes the radio wave state of the plurality of channels CH1, CH2, CH3. Each of CH2, CH3,... Functions as a display processing unit 3b that visualizes radio wave states of a plurality of wireless devices 21 to 26 and simultaneously displays them on the display screen 4a.

  As a part of the radio wave state display device 1, the radio communication device 11 is a radio communication unit 11a that transmits and receives signals to and from a plurality of actually installed radio devices 21 to 26 through radio communication using radio waves. Function. When the display device 4 is a so-called touch panel provided with a transparent input device on the display screen 4a, for example, the display device 4 also functions as the input device 5 operated by the user.

  In the radio wave state display device 1, the radio wave states of the wireless devices 21 to 25 based on the results of actual transmission / reception of test signals between the wireless communication device 11 and the wireless devices 21 to 26, specifically, channels CH1 and CH2 Since the measurement value of the electric field intensity for each of CH3,... Is grasped, the digitization processing unit 3a numerically calculates the electric field intensity distribution based on the measurement value of the electric field intensity and the distance from each of the wireless devices 21 to 26. Turn into. Since the electric field strength is inversely proportional to the square of the distance, it is possible to create data for drawing a three-dimensional contour map as shown in FIG. The display processing unit 3b displays an image indicating the radio wave state of each channel as shown in any of FIGS. 2 to 5 on the display screen 4a using the data digitized by the digitizing processing unit 3a.

  Next, the basic operation of the radio wave state display device 1, in other words, the basics of the wireless device connection support program installed and executed in the radio wave state display device 1 will be described with reference to the flowchart shown in FIG. The wireless device connection support program is installed in the radio wave state display device 1 or is installed in the existing personal computer 10 and executed.

  When this wireless device connection support program is activated, first, the arithmetic processing device 3 (display processing unit 3b) prompts the user for wireless device information including the installation location, type, and identification code of the wireless device, as necessary. An image for inputting wired device information is displayed on the display screen 4a of the display device 4 (step # 1). The user inputs device information by operating a touch panel, a keyboard, or the like while viewing a message displayed on the display screen 4a of the display device 4. When the device information is input, the arithmetic processing device 3 (data transfer unit: not shown) stores the device information in the storage device 2 (device information storage unit 2a) (step # 2).

  Next, the arithmetic processing device 3 (communication control unit: not shown) is connected to the wireless communication device 11 (wireless communication unit 11a) with respect to a plurality of wireless devices installed at the installation location of the wireless device. A test signal is transmitted and received via radio communication using radio waves (step # 3). Referring to FIG. 1, for example, the wireless communication device 11 instructs each wireless device 21 to 26 registered in the personal computer 10 to return a measured value of the electric field strength at a wireless frequency of CH1, for example. The test signals are sent in order. And the electric field strength measured value transmitted from the radio | wireless apparatuses 21-26 is received (step # 4). When receiving the field strength measurement value, the arithmetic processing device 3 (communication control unit) checks whether or not there is an answerback from the wireless devices 21 to 26. First, assuming that there is an answerback from the relay devices 21 and 22, the wireless communication device 11 can directly transmit and receive signals only with the relay devices 21 and 22, and the other wireless devices 23 to 26 are different from each other. It can be seen that signal transmission / reception cannot be performed directly. Next, the relay device 21 is relayed and a test signal is transmitted to the other wireless devices 23 to 26. Thus, for example, if there is an answerback from the wireless communication device 23, it is understood that the wireless communication device 11, the relay device 21, and the wireless communication device 23 are connected in this order. The same applies to the relay device 22. By performing the test transmission for all the available channels CH1, CH2, CH3... CHN, the storage device 2 (measurement value storage unit 2a) has the electric fields of the wireless devices 21 to 26 for all the channels. The intensity measurement value is stored (step # 5). Although not depicted in FIG. 1, if any route cannot be transmitted or received, that is, if there is a wireless device that is not connected, the fact is also known.

  When the reception of the electric field strength measurement values from the respective wireless devices 21 to 26 is completed, the arithmetic processing device 3 (numericalization processing unit 3a), the wireless devices 21 to 21 stored in the storage device 2 (measurement value storage unit 2a). Using the measured electric field strength values of 26, the radio wave states of a plurality of channels are digitized for each of the wireless devices 21 to 26 (step # 6). The arithmetic processing device 3 (display processing unit 3b) wirelessly uses the location information of the wireless devices 21 to 26 stored in the storage device 2 (device information storage unit 2a) and the data digitized in step # 6. For each of the devices 21 to 26, the radio wave states of a plurality of channels are visualized and simultaneously displayed on the display screen 4a (step # 7).

  As shown in FIG. 1, when the wireless devices 21 to 26 are connected in a tree topology, as described above, when receiving the field strength measurement values from the wireless devices 21 to 26, which wireless devices are connected to each other. You can see if it is connected. Therefore, as shown in FIG. 8, on the display screen 4a, the connection status of the wireless devices 21 to 26 may be visually displayed on an image indicating the radio wave status of each channel. As a result, for example, the user can easily recognize which wireless device is movable and which wireless device should not be moved.

  Furthermore, in step # 6, the radio wave states of a plurality of channels are digitized for each of the wireless devices 21 to 26, and the wireless device (relay device) is added to which location by performing arithmetic processing on the data. The optimal installation location can be specified. Accordingly, an image for allowing the user to input the number of newly added wireless devices is displayed on the display screen (step # 8), and the image is newly added according to the number input by the user. The optimal installation location of the wireless device to be added is determined by calculation (step # 9), and as shown in FIG. 9, the newly added wireless device is placed at a position on the display screen 4a corresponding to the determined location. An image indicating the radio wave status of each channel CH1, CH2, CH3, including the radio wave status is updated and displayed (radio wave status display update: step # 10). In FIG. 9, the radio wave state (electric field intensity distribution) of a newly added wireless device does not actually have a wireless device at that position, but is only a virtual one. It can be obtained by interpolating the measured electric field strength value of the device.

  By the way, there are cases where walls, pillars, and other devices are installed at the installation location of the wireless device, and it is not always possible to install the wireless device (relay device) at the location automatically determined as described above. I can't. Therefore, if necessary, according to the operation by the user, as shown in FIG. 10, an image showing the radio wave states of all the channels for a plurality of wireless devices displayed on the display screen can be arbitrarily displayed on the display screen 4a. You may comprise so that it can be moved to the position (step # 11). At that time, the image indicating the radio wave state of each channel CH1, CH2, CH3,... Is updated again and displayed (step # 12). The movement of the position of the wireless device may be an existing wireless device as well as a newly added wireless device. Furthermore, when a new wireless device is not added, an existing wireless device may be moved. As a result, when the position of the wireless device is moved, the radio wave state is simulated and displayed on the display screen, so the user can actually add or move the wireless device. Without changing the radio wave condition.

  Furthermore, the data of the image displayed on the display screen can be stored in the storage device according to the operation by the user (step # 13). As a result, the data of the image displayed on the display screen at the time point specified by the user is stored, so the past data stored in the image data storage unit is referred to later, and the subsequent wireless communication system is installed. It is also possible to provide feedback to the work.

  In addition, this invention is not limited to description of the said embodiment, A various deformation | transformation is possible within the scope of the invention. For example, each of the wireless devices 21 to 26 may perform communication by automatically selecting a channel having the strongest electric field strength, that is, a radio wave condition, from a plurality of channels capable of communication. You may communicate using only the specific channel designated by the user. Furthermore, the present invention is not limited to the multi-channel wireless communication system using radio waves of a plurality of frequencies such as ZigBee as exemplified, and can be applied to a wireless communication system such as a wireless LAN or BlueTooth.

DESCRIPTION OF SYMBOLS 1 Radio wave status display device 2 Storage device 2a Device information storage unit 2b Measurement value storage unit 2c Image data storage unit 3 Arithmetic processing device 3a Numerical processing unit 3b Display processing unit 4 Display device 4a Display screen 5 Input device 5a Input unit 10 Personal Computer 11 Wireless communication device 11a Wireless communication unit 21, 22 Relay device (wireless device)
23, 24, 27 Wireless communication device (wireless device)
25, 26 Controlled devices 31-33 Wired equipment

Claims (20)

An input unit operated by a user;
A device information storage unit that stores wireless device information including installation locations and identification codes related to a plurality of wireless devices input by the user via the input unit;
An image display unit having a display screen;
A wireless communication unit capable of transmitting and receiving signals by radio waves on a plurality of channels having different frequencies between a plurality of wireless devices;
Quantification that quantifies the radio wave state of the plurality of channels for each of the plurality of wireless devices using the electric field strength values of the plurality of channels transmitted from the plurality of wireless devices and received by the wireless communication unit. A processing unit;
A display processing unit is provided that visualizes radio wave states of the plurality of wireless devices for each of the plurality of channels using the data digitized by the digitization processing unit and simultaneously displays them on the display screen. A radio wave condition display device. The digitization processing unit contours the radio wave states of the plurality of channels,
2. The display processing unit according to claim 1, wherein the display processing unit translucently displays an image indicating a radio wave state of the plurality of channels, further converts the image into a two-dimensional or three-dimensional image, and displays the image superimposed on the display screen. Radio wave status display device. The digitization processing unit contours the radio wave states of the plurality of channels,
The display processing unit translucently and further three-dimensionalizes images indicating the radio wave states of the plurality of channels, and displays the images on the display screen while being shifted by a predetermined distance in a predetermined direction. Item 2. A radio wave state display device according to item 1.   The radio wave state display device according to claim 2 or 3, wherein the images indicating the radio wave states of the respective channels to be translucent are displayed with different transparency.   The radio wave state display device according to claim 2 or 3, wherein the images indicating the radio wave states of the respective channels to be translucent are displayed in different colors. The numerical processing unit converts the radio wave states of the plurality of channels into a two-dimensional graph,
2. The radio wave state display device according to claim 1, wherein the display processing unit displays a graph image indicating the radio wave states of the plurality of channels on the display screen while being shifted by a predetermined distance in the vertical direction of the screen. .   The radio wave state display device according to claim 6, wherein the image of each channel or the individual graph images indicating the radio wave states of the plurality of wireless devices are displayed on the display screen in different colors. When the user inputs the number of newly added wireless devices via the input unit,
The numerical processing unit determines an optimal installation location of a newly added wireless device by calculation,
The display processing unit visualizes and displays a radio wave state of the newly added wireless device obtained by calculation at a position on the display screen corresponding to the position determined by the digitization processing unit. The radio wave state display device according to any one of claims 1 to 7, characterized in that:   When the user operates the input unit, an image showing the radio wave status of all channels for the one or more wireless devices displayed on the display screen can be moved to any position on the display screen. The radio wave state display device according to any one of claims 1 to 8, wherein the radio wave state display device is provided.   10. The one or more channels on which the radio wave state is simultaneously displayed on the display screen are arbitrary channels among the plurality of channels selected by a user. The radio wave state display device according to any one of the above.   The radio wave state display device according to claim 3, wherein the order of images indicating the radio wave state of each channel displayed on the display screen while being shifted by a predetermined distance in the predetermined direction can be changed.   12. The connection state of the plurality of wireless devices is visually displayed on the display screen when the plurality of wireless devices are connected in a tree topology. The radio wave state display device according to claim 1.   13. The image data storage unit according to claim 1, further comprising an image data storage unit for storing data of an image displayed on the display screen at a time point designated by a user via the input unit. The radio wave state display device according to claim 1. A wireless device connection support program for confirming a connection status of a wireless device by being installed and executed in a computer device,
Displaying on the display screen of the display device an image for allowing a user to input wireless device information including installation locations and identification codes of a plurality of wireless devices;
Storing wireless device information including installation locations and identification codes related to the plurality of wireless devices input by a user in the storage device;
A step of causing a plurality of wireless devices to transmit and receive signals on a plurality of channels having different frequencies with respect to a wireless communication device that transmits and receives signals by radio waves,
Receiving measured values of electric field strength for each of the plurality of channels measured by the plurality of wireless devices and transmitted to the wireless communication device;
Storing the measured values of the electric field strengths of the plurality of channels for the plurality of received wireless devices in a storage device;
Using the electric field strength values of the plurality of channels stored in the storage device, quantifying the radio wave states of the plurality of channels for each of the plurality of wireless devices;
A wireless device connection comprising the step of visualizing the radio wave states of the plurality of channels for each of the plurality of wireless devices using the digitized data and simultaneously displaying them on the display screen Support program. The step of quantifying the radio wave states of the plurality of channels is to contour the radio wave states of the plurality of channels,
The step of visualizing the radio wave states of the plurality of channels and simultaneously displaying them on the display screen is to make the image showing the radio wave states of each channel translucent, further two-dimensionally or three-dimensionally displayed on the display screen. The wireless device connection support program according to claim 14, wherein the wireless device connection support program is displayed in an overlapping manner. The step of quantifying the radio wave states of the plurality of channels is to contour the radio wave states of the plurality of channels,
The step of visualizing the radio wave states of the plurality of channels and simultaneously displaying them on the display screen makes the images showing the radio wave states of the respective channels translucent, further three-dimensionalized, while shifting the image by a predetermined distance in a predetermined direction. 15. The wireless device connection support program according to claim 14, wherein the wireless device connection support program is displayed in an overlapping manner on a display screen. The step of quantifying the radio wave states of the plurality of channels is a two-dimensional graph of the radio wave states of the plurality of channels,
The step of visualizing the radio wave states of the plurality of channels and simultaneously displaying them on the display screen displays a graph image indicating the radio wave states of the plurality of channels on the display screen while shifting the graphs by a certain distance in the vertical direction of the screen. The wireless device connection support program according to claim 14, wherein: Displaying an image on the display screen for allowing the user to input the number of newly added wireless devices;
In accordance with the number input by the user, the step of determining the optimal installation location of the newly added wireless device by calculation,
18. The method of claim 14, further comprising visualizing and displaying a radio wave state of the newly added wireless device at a position on the display screen corresponding to the determined position. The wireless device connection support program according to any one of the above.   The method further includes a step of moving an image showing radio wave states of all channels for the plurality of wireless devices displayed on the display screen to an arbitrary position on the display screen in response to an operation by a user. The wireless device connection support program according to any one of claims 14 to 18, characterized in that:   The wireless device connection according to any one of claims 14 to 19, further comprising a step of storing data of an image displayed on the display screen in a storage device in response to an operation by a user. Support program.

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