JP2002033710A - Consulting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a consulting method, that instructs a user at least where a high-frequency radio wave absorbing body is to be placed or preferably where and how many radio wave absorbing bodies with which performance level, kind or article number are located, based on visualized radio wave information that may be a very effective tool for a consulting business with respect to the high frequency radio wave absorbing body covering a millimeter wave used for fields of wireless interference prevention, interference on compatibility with an indoor LAN, radar false image prevention and EMC countermeasures, especially in the fields of prevention of wireless interference of an indoor LAN and building interference or the like. SOLUTION: This consulting method is characterized in presentation of how to solve an electromagnetic wave interference, where a radio wave interference state which is the cause of a radio wave and/or electromagnetic wave interference is expressed in digital cell mapping data, on the basis of radio wave and/or electromagnetic wave measurement data, processing the digital cell mapping data by a computer generates a visualized radio wave mapping, and the radio wave mapping is analyzed to solve the electromagnetic wave interference.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio wave absorber used in the fields of radio interference prevention, indoor LAN correspondence, radar false image prevention, and EMC countermeasures, particularly, millimeter waves such as indoor LAN and radio interference caused by building interference. The present invention relates to a consulting method using radio wave mapping, which is radio wave information visualized as a tool during a consulting business regarding high frequency radio wave absorbers. For example, in the consulting business to solve the problem of electromagnetic interference by collectively managing the measurement of radio waves, undertaking orders, printing, information processing, construction (including when outsourcing to other companies) and delivery to consumers And consulting methods that use radio wave mapping as a visual tool to provide easy-to-understand explanations for direct contracting activities with consumers and for housing manufacturers, construction firms, general contractors, design offices, government offices, and general consumers. It is.

[0002]

2. Description of the Related Art Conventionally, various electromagnetic wave shielding materials have been used as countermeasures against noise in electronic equipment products that emit electromagnetic waves. In the case of the electromagnetic wave shield, basically, the electromagnetic wave is prevented from entering the electronic device housing by utilizing the reflection function of the incident unnecessary electromagnetic wave. Therefore, in this case, the electromagnetic wave exists in the use space in some sense, and causes a secondary noise.

On the other hand, in the case of a conventional electromagnetic wave absorber, from the design stage, the reflection level from a radio wave absorber layer having the same geometrical area as the reflection level from a metal plate which is a perfect reflector is determined. It is manufactured in consideration of the degree of reduction, that is, how much the incident electromagnetic wave is absorbed. Therefore, in this case, there is no electromagnetic wave incident on the use space. Therefore, this is a fundamental solution to unnecessary electromagnetic waves, and both are clearly distinguished in their operation and configuration.

[0004] Further, in the past, consumers demanding improvement with respect to electromagnetic interference are generally not aware unless some sort of interference appears, because the invisible information of electromagnetic waves is the root cause. In that case, no business opportunity for electromagnetic wave countermeasures will be realized. In other words, in the past, there has not been visualization of electromagnetic waves so that awareness is expressed,
Therefore, inconvenience is felt after appearing as a phenomenon, and it is necessary to take action for the first time. More specifically, it is common to take a self-response after a TV becomes difficult to see or cannot be seen due to a radio wave obstruction such as a ghost to a monitor such as a TV. In other words, such measures are simple, such as purchasing and replacing an antenna at a retail store such as a supermarket.

On the other hand, in an indoor LAN that has been developing in recent years, for example, a plurality of computers are provided in a home, and opportunities for exchanging each room by wireless communication are increasing. In this case, since radio in a high-frequency range that is technically high is targeted, the response that can be taken by an individual must be limited to a simple one, such as trying a solution using a specialized book or the like.

[0006] Furthermore, there has been a small number of computers compatible with wireless LAN and no wireless interference has been received.
As the number of children increases or the number of connected devices increases or the room distance and installation location are changed without fail, consumers may experience sudden radio interference, loss of communication, or errors in communication data. Unawares of the situation and has to deal with it. Furthermore, the contract is conventionally performed only between the consumer and the trader A, the processing is separately performed by the processor S, and the construction is separately performed by the house maker H, etc., and the electromagnetic wave absorber is attached to solve the consumer's problem and satisfy the customer. The business flow of getting a degree was complicated.

[0007] The design and processing of the electromagnetic wave absorber after measurement also poses a problem. The first companies to deal directly with consumers (including consultation complaints) are, for example, traditionally those of public institutions, publicly licensed companies (Ministry of Posts and Telecommunications), and shield measurement specialists. In that case, a direct contact is received from the consumer side, and after receiving the contact, a simple hearing (telephone, fax, etc.) is performed. After detailed examination, bring in a measuring device,
It is customary for the contractor to proceed with the installation → measurement → result examination almost using his own know-how. Therefore, consumer opinion is almost ignored. In other words, the explanation of the data is insufficient, the data is not visualized as a drawing, and it is too professional to understand, so it will be proceeding with the advantage of the trader itself. Coupled with the inability to do so, customer satisfaction is low.

In general, the value of the S-parameter for defining the performance of the electromagnetic wave absorber is important, and the measurement methods for obtaining the S-parameter are “coaxial, waveguide method”, “cavity resonator method”,
"The free space method, etc. is selected according to the size and shape of the place or the measurement site, and the measurement is performed. In addition, the amount of radio wave absorption of the material itself is determined by the" free space standing wave method "or simply the" Advantest method. And so on.

A special measuring device or the like is used in accordance with the frequency of the electromagnetic wave. For example, a cavity resonator or a network analyzer is required for measuring a transmission coefficient using a cavity resonator. In addition, EMC (Electro Mag
As a measurement facility, a spectroanalyzer with a built-in electric field strength receiver, static electricity, burst wave, lightning surge wave, radio frequency analysis, pulse magnetic field, voltage dip drop, instantaneous power failure / voltage fluctuation, DC voltage fluctuation Some of the 7 tests have been all-in-one on one device (EIA 3U height).

[0010] Regulations (including regulations) on EMC are becoming particularly strict. Assurance of measurement is usually a proof of compliance with the EMC Directive, and CE (Communant
It is also obligatory to display an (Eeuropeenne) mark. In addition, it is customary that only the trader decides whether to use a radio wave absorber or an electromagnetic wave shield. Furthermore, there is also a type of radio wave absorber to be used as an example. In other words, since the standards such as types and frequencies are various and a high degree of specialized knowledge is required, it is generally difficult for consumers to cope with each other.

The most basic electromagnetic wave absorber is a single-layer type electromagnetic wave absorber lined with a structurally simple metal. Generally, there are many one-layer rubber sheet radio wave absorbers in which carbon particles are mixed in a rubber material. Further, there is a two-layer type radio wave absorber having a surface layer and an absorption layer. It is made of graphite-containing styrofoam or silicon carbide FR
There are many radio wave absorbers using P.

Further, there is a multilayer type radio wave absorber which requires a wide band, such as a radio wave absorber used in an anechoic chamber. This is classified into a pyramid type and a wedge type according to the structural form. As a thin film multilayer electromagnetic wave absorber, there is, for example, "Flextel" (trade name) of Nippon Enesis Co., Ltd. In this method, a combination of more than 15 kinds of materials is determined from the construction conditions and manufactured. Furthermore, each layer is firmly bonded with a special thermoplastic adhesive, and it is impossible to correct it after construction or correct it on the spot. In addition, it is inevitable to be in a form corresponding to the frequency, and it is necessary to separately prepare constituent materials. Also,
In recent years, the demand for radio waves conscious of the millimeter wave band, mainly for mobile phones, has been rapidly increasing, and accompanying this, the demand for the millimeter wave band (particularly 60G
(Hz, 90 GHz band), research and development of radio wave absorbers are also being actively carried out, and severe control is required in terms of processing accuracy, and many of them are difficult. In these processes, a specialized processor receives an order from a measuring company and proceeds with the process. On the other hand, in the case of construction, a contractor who can construct the above-described radio wave absorber on a building structure on the consumer side, generally a house maker H, is generally used. In such a case, the flow is that each contractor, who performs construction and delivery according to the instructions of the measurement contractor and performs final inspection, is separately and complicatedly involved.

[0013]

The problem to be solved by the present invention is a 3D radio wave visualized by a computer,
Utilizing a new business tool called electromagnetic interference information,
To provide a consulting method that enables the user to visually recognize the electromagnetic interference at the construction site as an image and presents a solution to the electromagnetic interference. In the consulting business of radio wave absorbers used in the fields of radio interference prevention, indoor LAN correspondence, radar false image prevention, and EMC countermeasures, especially high frequency radio wave absorbers including millimeter waves such as indoor LAN and radio interference due to building interference From the visualized radio wave information that can be an effective tool, indicate at least where to install the radio wave absorber, preferably what kind of performance, type or part number, where and how much radio wave absorber should be installed It is to realize that.

[0014] As described above, a fundamental solution is to implement a more advanced electromagnetic wave absorber, which has been conventionally handled simply by individuals. Furthermore, providing a higher level of customer satisfaction by simplifying the business structure.

[0015]

In order to solve the above-mentioned problems, the consulting method according to the present invention comprises the following steps: (1) a method of causing radio wave and / or electromagnetic interference based on measurement data of radio waves and / or electromagnetic waves; After converting the radio wave interference state to digital cell mapping data,
A consulting method, wherein a radio wave mapping visualized by data processing of the digital cell mapping data is created by a computer, and the radio wave mapping is analyzed to present a method for solving an electromagnetic interference.

(2) The consulting method according to (1), wherein the mapping area is a specified area and space. The electromagnetic wave mapping used here refers to the digital radio interference state that causes electromagnetic interference.
After the cell mapping data, it is visualized from the data processing. The mapping area includes a radio wave transmission source and an electromagnetic interference area, and is not particularly limited.

(3) The mapping area includes a station premises, a station waiting room, an airport waiting room, a transportation facility, a tunnel, an underground shopping mall, an underground shopping mall, an underground passage, a subway, a subway, each city, and each structure. The consulting method according to (1) or (2), wherein the method is between objects, between rooms in a house building, or in a room. For example, between the cities where the measurement was performed, between the structures, and in the case of the individual consumer, it may be in a house building owned by the consumer himself, especially between rooms. Of course, there is no distinction between structures, public and private, and also applies to spatially enclosed places. However, it is different for an anechoic chamber that is a sealed place, which is different from the present case in the reference measurement place of the radio wave measurement equipment,
Not relevant to this case. In the closed place here,
For example, an underground mall or a tunnel. More dynamic moving objects are out of scope. This is the case where the electromagnetic interference source changes within a short time measurement, and this case is not applicable.

(4) The method of solving the electromagnetic wave interference is characterized in that the presentation of what kind of performance, type or part number of the radio wave absorber is to be performed and how much is to be performed (1). ), (2) or (3).

(5) The company that creates the radio wave mapping is a printing company (1), (2),
The consulting method according to (3) or (4). In other words, as an example, a business where the printing company D is located at the center and solves the problem of electromagnetic interference by collectively managing the measurement of radio wave absorbers, receiving orders, printing, information processing, and construction delivery to consumers The radio wave consulting business is performed while controlling the flow of the information.

(6) The side to be presented with the method for solving the electromagnetic interference is a house maker, a construction company, a general contractor, a design office, a government office, or a general consumer (1), (2). , (3), (4) or (5). It is what it was.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of radio wave mapping used in the consulting method of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing one mode (embodiment) of the radio wave mapping 10 of the present invention. Such a radio wave mapping was produced by the following steps. FIGS. 2A, 2B and 2C are perspective views showing digital cells 3 of various sizes.

The radio wave mapping 10 of the present invention uses radio waves and
And / or visualization of the interference state of radio waves causing electromagnetic interference as digital cell mapping data 9. Therefore, it starts by converting radio waves into visualization information. Therefore, first, in preparing the digital cell mapping data 9, for example, the entire layout of a house building,
Data such as room allocation, framework / electrical wiring, wireless repeaters and connectors are also input as symbols and numerical values, and CAD data digitally processed in a 3D state is used. For these, CAD software conventionally used in construction, design and the like may be used as it is, or may be specially produced.

Next, the 3D-CAD data is divided into cells 1 corresponding to a unit volume of a certain cube. This cell division may be performed in an equivalent manner, or may be performed by weighting data by digital processing or the like. Further, the digital cell 3 may be a cone, a sphere, a polygon or the like instead of the cubic cell 1.

FIGS. 2A, 2B and 2C are perspective views showing digital cells 3 of various sizes. As a method of processing digital cell data (digital cell mapping data), when importance is placed on the speed of analysis processing over measurement accuracy, the number of digital cells 3 is limited or the size of cell unit 2 is changed. And set it. The arrangement of the digital cells 3 can be freely arranged as three-dimensional, and data processing such as rotation, illumination direction, etc. may be performed so as to facilitate explanation to consumers. The area of the digital cell 3 can also be set freely according to the measurement location and the number of measurement points. Furthermore, the cell unit 2 can be differentiated and set to the minimum bit of the digital data. The number of cells is not limited, and data processing may be performed as random number generation. Also, data may be encoded or thinned out to perform intermediate processing to increase speed and convenience.

Next, digital processing software for analyzing electromagnetic interference is used separately. This is for visualizing the interference state, and is preferably one capable of performing detailed simulation analysis of the flow and behavior of the electromagnetic wave in 3D as much as possible. Commercially available electromagnetic field analysis software may be used, and further, basic software (Mathematica, d-BASE, visual-BASIC) may be combined,
It may be dedicated by self-production or the like. For example, if it is a commercially available electromagnetic field analysis software, there are a lot of software for microwave CAD in particular.
c. , A linear simulator, Supercompac
t, Tochstone, SN
AP, Libra, MDS, MSPICE and the like are used.

Furthermore, the OS is not particularly limited as a basic one, and any OS may be used. For example, the OS is Win
Windows, MacOS, UNIX, Linux, or the like may be used. These simulators are associated with computing power. For example, in the basic SPICE, RA
M is 640K-100M, CPU is 8086-6803
From the range of about 0 to HFSS, to support 3D, RAM is 60M-1G, CPU is PA
-A class of about RISCP (II) is basically required. In any case, it is preferable to use a workstation-class computer after preparing a use environment, and it is preferable to provide a large-scale supercomputer-class computer and a plurality of dedicated servers.

In the configuration of the simulator, the load on the computer is reduced by making the input unit easier. In this case, Use
r Interface and a Frame section that regulates the exchange of data with other CAD, and a circuit parameter calculation, various analysis programs, and a program for optimization.
In the ngine part, and in a device such as a circuit element having a discontinuity such as a cross or a bend, or a Datab based on measured data.
Basically, it is composed of a Library section or the like that stores “ase” or the like.

Further, it is more preferable to use dedicated software capable of performing digital processing at a higher level, for example, by combining a plurality of such software than using them alone. The visualized radio wave mapping (electromagnetic wave digital mapping) 10 is obtained by combining these separately prepared softwares into digital cell mapping data and visualizing them.

The radio wave mapping (electromagnetic wave digital mapping) is analyzed as follows. The measurements are spatially multipoint measurements. Alternatively, the number may be reduced to a number that can be analyzed by performing data processing such as data complementation. Data such as the magnitude of electromagnetic wave absorption, the magnitude of electromagnetic interference, and the distance between the radio wave source and the measurement point are used as the measurement values. In the electromagnetic wave digital mapping, the position of the computer or the position of the wireless repeater, etc., which has been claimed by the consumer S, are further placed, and the necessary numerical values are input so that electromagnetic wave analysis can be performed.

Necessary numerical values may be measured on site, and in the case of a house, since the dimensional standard is unified, measurement or simulation results are used in a model house according to the standard, or data obtained in advance is used. The calculated value may be substituted. Further, when advanced and strict processing is required, the measurement data may be obtained through a measurement company designated by the printing company D together with the sales of the printing company D (including technology). The measurement may be performed by a specialized measurement company designated by the printing company D, or if it is determined that past data can be used, it is used.

The measurement results further show the 3D-CA
A special symbol that superimposes on the data of D to distinguish the direction of radio waves → and distinguish, the magnitude of electromagnetic wave absorption, the magnitude of symbols with numerical values and signs, the magnitude of radio wave interference is described by wave symbols and waveforms, etc. And process the data. These are not limited as long as they can be distinguished as data. Since these are both digital data, they can be easily processed by computer.

Visualization is performed by forming a contour line, color classification (illustrated in FIG. 1), a histogram, a graph such as a wave and a polygonal line, and the like, according to the result of the digital numerical value processed. This result can be displayed or presented as a display display, an output on a simple printer, or a print using a digital on-demand printer.

A specific example of the radio wave consulting method of the present invention will be described below. As an example, a house building will be described in detail with a region between rooms (centering on a child room) as an area. The interference source is described assuming a wireless LAN computer in the children's room. In order to make the business flow easier to explain, the explanation will be made in the following order: meeting / order receiving activities → radio wave measurement / measurement → radio wave absorber processing (including logistics) → construction / delivery inspection.

(Meeting / Order Receiving Activity) The contents of the consulting service will be described in comparison with the conventional business. With the development of the indoor LAN technology, for example, a plurality of computers are provided and used in a home, and the chances of exchanging computer data between each room by wireless communication have increased.

Further, there has been a small number of computers compatible with the wireless LAN and no wireless interference has been received so far.
As the number of children increases or grows, the number of connected devices increases, or the distance between rooms and the installation location are changed without fail. As a result, radio interference occurs suddenly and the situation must be dealt with. Here, for the first time, consumers become aware of electromagnetic interference.

Therefore, conventionally, a request is made by searching for a radio wave measurement trader. At this time, the orders have already been received at the time of the request. In other words, there is no denial at this stage. If it is mild, business chances will be lost due to such problems. In view of the above, including the explanation of the meeting, the consumer side is in the position, and the trader is the main position. For this reason, it is common for consumers to not know how much electromagnetic wave absorbers need to be installed in order to take measures against electromagnetic interference. Further, usually, the contractor determines and presents how much the cost is, an estimate, a delivery date, and the like. Therefore, as a consumer dissatisfaction, the desire to actually do so cannot be met and customer satisfaction is low.

On the other hand, in this case, the printing company D works as a consultant service to actively solve the dissatisfaction. In other words, consultation and advice are provided for hearings requested by customers. At this time, since the printing company D has already prepared an electronic catalog of the catalog and the like as digital data, the printing company D proposes the digital catalog specifically while looking at a monitor such as a CRT. In this case, it is possible to include a determination as to whether to request the printing company D or not to use another printing company.

(Measurement / Measurement) Conventionally, a company licensed by the Ministry of Posts and Telecommunications or a specialized company licensed by a wireless worker performs measurement / measurement. At this time, the measuring company brings in the measuring device and installs it →
It is customary for this trader to proceed with measurement-> examination of results using his own know-how. Therefore, consumer opinion is almost ignored. In other words, the explanation of the data is insufficient, it is too professional to understand, and the process proceeds with the advantage of the trader itself. Again, as a dissatisfaction on the consumer side, customer satisfaction is low.

On the other hand, in the case of the present case, in the present business, the above-mentioned radio wave mapping determines an important position. That is,
It is used to visualize the invisible medium called radio waves. The measurement and measurement may be performed by a specialized trader as before, but the printing company D mainly performs the instruction and control. If the data is abundantly prepared and standardized like a house, it matches the model case, and if there is simulation data that does not require measurement, it may be used as a consultant.

(Electromagnetic absorber processing (including logistics) → construction
Using the above-mentioned radio wave mapping (electromagnetic wave digital mapping), the consumer and the sales company of the printing company D can use a mobile or portable computer to obtain 3
Understand the phenomenon as D-video (moving images are also acceptable)
Also, for construction work, it is possible to make arrangements according to the progress status together with the visualization information, it is easy to incorporate consumer opinions, and the changes that occurred at the time of consultants are timely,
Consumer opinions are sufficiently captured by digital data change processing or by showing simulation results, thereby increasing customer satisfaction. Depending on the simulation result, it is easier to determine when it is better to change the installation location of the computer to the optimal location than to renovate the children's room, and whether changing the wiring method or wireless LAN repeater is the fundamental solution. .

Further, at this time, it is possible to make a proposal based on the improvement of the current situation, as to whether the electromagnetic wave absorber can be solved by applying the sheet with the electromagnetic wave absorber or what type is effective. Can be solved inexpensively and in a satisfactory manner. Specifically, which direction in the children's room is the source of electromagnetic interference? Is it necessary to use only the walls or the entire room for construction? Or, individual consumers, their favorite cosmetic paper, etc., including the color and design of the cross-face, meeting, construction, delivery inspection, and resolution of electromagnetic interference. Here, the latest information on the design of the printing company D and the marketability are included, and the range of consulting services is increased.

Further, the printing company D can print on decorative paper and the like, and has digital data as building material data such as the size of panel boards and mounting hardware. Absent. Further, it is possible to provide consulting on the color management, lighting design, design, and the like that can be distinguished by distinguishing the printing company D from other industries by utilizing its know-how. Also, as mentioned above,
Printing company D
If a large amount of past information is acquired by accumulating it in the server, it will be possible to compare data before and after new construction and simulate, etc., so it is no longer necessary to bring measurement equipment directly to the site Has advantages.

The order data received by the business of the printing company D can be used by facsimile, telephone, mobile phone, data logger, mobile terminal, or floppy disk, and is stored in the server of the printing company D as the main body. Printing company D
In this case, not only confidentiality management of customer data, but also information processing has more know-how than before, and this is one of the livelihoods, so this flow is simplified and smoothly performed. The digital data in the server of the printing company D, which is the main body, is the data processing No. Can be managed collectively, so that the progress can be centrally managed, including printing, processing, and physical distribution. As a result, it is possible to immediately respond to and report on the issuance and completion of delivery and construction plans to consumers.

Further, the electromagnetic wave digital mapping can be used for business development alone. Electromagnetic interference may be converted from individual data at each home to regional data including that home, or if data contracted between regions is collected, data will be converted between cities. . Further, since the printing company D has sufficient know-how of digital information processing, it also has know-how of personal information management, and can perform a job capable of sufficiently securing information confidentiality. Therefore, this data may be exchanged individually, or since the data itself is valuable, the data may be printed and the printed matter may be sold.

In addition, since the data volume and data accuracy are increased due to an increase in the order-to-delivery results, the state of electromagnetic interference can be predicted in advance, and the installation location of a structure that is likely to become a new electromagnetic wave source is installed. And a business to warn of electromagnetic wave claim sources.

[0046]

EXAMPLES The present invention will be further described below with reference to examples.

(Embodiment 1) FIG. 1 is a schematic diagram showing an embodiment of radio wave mapping used in the present invention. Such a radio wave mapping 10 was produced by the following steps.

(1) The floor plan of a house to be measured is converted from a floor plan (plan view) to a three-dimensional view by 3D-CAD (for building and design). (3D drawing 4 of the house). (2) Next, a digital cell 3 having a size corresponding to the space to be measured was prepared. Here, a cube having a reference amount of 1 in the same direction is classified as a unit cell 1. (3) The digital cell 3 was arranged in accordance with the measurement space. The coordinate position of each digital cell was represented and determined in an (X, Y, Z) coordinate system. However, when necessary for electromagnetic wave analysis, it was converted to a polar coordinate system and used.

(4) Specific radio wave measurement values are as follows. For the radio wave absorber material, the S-parameter, load impedance, and voltage standing wave ratio (VSWR) are measured by the resonator method and the coaxial waveguide method, respectively. I asked. Furthermore, the state of the electromagnetic interference in the room is based on a spatial standing wave method based on EMC measurement,
The reflection coefficient and the amount of absorption were measured and determined by the reflected power method. (5) Next, electromagnetic wave analysis was performed based on the measurement results. The reflection coefficient and the amount of radio wave absorption calculated and processed from the standing wave that changed in a complicated manner were arranged as digital numerical values in portions corresponding to the respective spatial positions of the digital cell 3.

The computer used for these was SUN
Workstation. Performance / Window
s NT version compatible, OS UNIX, 800MB memory,
Hard disk 40GB. Since the software used differs in the basic processing method of electromagnetic wave analysis, the following combination was analyzed. MAGNA / TDM (CRC Research Laboratory)
Electromagnetic wave analysis by finite integral equation
NA / FIM (manufactured by CRC Research Institute) and MSPICICE were used for wave analysis for the fundamental propagation part.

(6) Further, the digital cell mapping data 9 and the 3D drawing 4 of the house were superimposed and calculated to obtain a radio wave mapping 10. Here, as a result after the radio wave analysis, in the visualization of the radio wave mapping drawing, the 3D drawing 4 of the house was represented by a gradation pattern by color-coding the interference state of the radio wave according to the result of the calculated digital numerical value. A bright (white) portion in the gradation pattern indicates a place where radio interference is strong. A dark (black) part in the gradation pattern indicates a place where radio interference is weak. This is shown in FIG.

(7) By consulting (explaining) the visual data of radio wave mapping as shown in FIG. 1 to the owner or the contractor of a house having a room, a place where improvement is actually needed and a place where it is not needed can be determined. The visualized information provided a clearer understanding. For that reason,
The construction of the necessary and sufficient radio wave absorbers and building materials including the radio wave absorbers without waste was smoothly performed, and it was highly evaluated as an excellent radio consultant method that has never been seen before in business.

(Embodiment 2) FIG. 3A is a schematic diagram showing an embodiment of radio wave mapping used in the present invention. Such a radio wave mapping 11 was produced by the following steps.

(1) The layout of a room to be measured is converted from a floor plan (plan view) to a three-dimensional view by 3D-CAD (for architecture and design). (Room 3D drawing 5). (2) Next, a digital cell 3 having a size corresponding to the space to be measured was prepared. Here, a cube having a reference amount of 1 in the same direction is classified as a unit cell 1. (3) The digital cell 3 was arranged in accordance with the measurement space. The coordinate position of each digital cell was represented and determined in an (X, Y, Z) coordinate system. However, when necessary for electromagnetic wave analysis, it was converted to a polar coordinate system and used.

(4) Specific radio wave measurement values are as follows. For the radio wave absorber material, the S-parameter, load impedance, and voltage standing wave ratio (VSWR) are measured by the resonator method and the coaxial waveguide method, respectively. I asked. Furthermore, the state of the electromagnetic interference in the room is based on a spatial standing wave method based on EMC measurement,
The reflection coefficient and the amount of absorption were measured and determined by the reflected power method. (5) Next, electromagnetic wave analysis was performed based on the measurement results. The reflection coefficient and the amount of radio wave absorption calculated and processed from the standing wave that changed in a complicated manner were arranged as digital numerical values in portions corresponding to the respective spatial positions of the digital cell 3.

The computer used for these was SUN
Workstation. Performance / Window
s NT version compatible, OS UNIX, 800MB memory,
Hard disk 40GB. Since the software used differs in the basic processing method of electromagnetic wave analysis, the following combination was analyzed. MAGNA / TDM (CRC Research Laboratory)
Electromagnetic wave analysis by finite integral equation
NA / FIM (manufactured by CRC Research Institute) and MSPICICE were used for wave analysis for the fundamental propagation part.

(6) Further, the digital cell mapping data 8 and the 3D drawing 5 of the room were superimposed and calculated, and the radio wave mapping 11 was obtained. Here, as a result after the radio wave analysis, the visualization of the radio wave mapping drawing expressed the interference state of the radio wave with a gradation pattern in the 3D drawing 5 of the room in accordance with the result of the calculated digital numerical value. A bright (white) portion in the gradation pattern indicates a place where radio interference is strong. A dark (black) part in the gradation pattern indicates a place where radio interference is weak. This is shown in FIG.

(7) Necessary digital data is decomposed from the digital cell mapping data 8 of the radio wave mapping 11 of FIG. 3A and the 3D-CAD data, and the digital cell mapping data 8 (FIG. b)) and the room 3D-CAD FIG. 5 (FIG. 3 (c)).

(8) 3D-CAD of the room FIG.
(C)) was further converted from the gradation pattern indicating the state of radio wave interference, and the site 6 (position in cell units) where data conversion was to be performed and the radio wave absorber was to be applied could be shown as in FIG. 3 (d). (9) By explaining the above visual data to owners and contractors of houses with rooms, they were able to clearly understand the actual necessary construction parts that were visualized. Therefore, the construction of the necessary and sufficient radio wave absorbers and building materials including the radio wave absorbers without waste is performed smoothly,
As a business, it was highly evaluated as an excellent radio consultant method.

[0060]

According to the present invention, a new business tool of 3D radio wave and electromagnetic interference information visualized by a computer is used to visually recognize an electromagnetic interference condition at a construction site as an image, and to display the electromagnetic interference. Was able to provide a consulting method for presenting a solution.

Consultation on radio wave absorbers used in the fields of radio interference prevention, indoor LAN correspondence, radar false image prevention, and EMC countermeasures, particularly high frequency radio wave absorbers including millimeter waves such as indoor LANs and radio interference due to building interference From the visualized radio wave information that can be a very effective tool at the time of business, at least where to install the radio wave absorber, preferably where and how much radio wave absorber of performance, type or product number Can be realized. By using radio wave mapping (electromagnetic wave digital mapping), the phenomena can be understood as 3D images (moving images are also possible), and at the time of construction work, visualization information can be used, and discussions can be made in accordance with the progress of the work. Is easily included.

According to the present invention, a new radio wave consulting method can be provided and created. By developing a business centered on a new tool called radio wave mapping, we have realized a lightweight, inexpensive, wide band and easy installation in electromagnetic wave absorber construction and response to electromagnetic interference, especially for high frequency (1 GHz-70 GHz). By simplifying the business structure, customer satisfaction can be provided through radio consulting with higher quality levels.

The most suitable electromagnetic wave absorber can be easily simulated and selected according to the degree of arrival of electromagnetic waves at the construction site, and consulting work can be performed in line with the current situation. For example, in the case of construction on an indoor wall surface, the degree of scattering / reflection of electromagnetic waves differs between the incidence from the window surface and the ceiling surface. Consulting can be done to construct an optimal electromagnetic wave absorber for such a situation.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of one embodiment of radio wave mapping of the present invention.

FIG. 2 is a perspective view showing a configuration example of a digital cell of the present invention.

FIG. 3 is a schematic diagram of another embodiment of the radio wave mapping of the present invention.

[Explanation of symbols]

 Reference Signs List 1 cell 2 cell unit 3 digital cell 4 3D drawing of house 5 3D drawing of room (3D-CAD drawing of room) 6 Site where radio wave absorber should be installed 8 Digital cell mapping data 9 Digital cell mapping data 10 Radio wave mapping 11 Radio wave mapping

Claims (6)

[Claims] The method according to claim 1, wherein the radio wave and / or electromagnetic wave measurement data is used to convert the radio wave interference condition causing radio wave and / or electromagnetic wave interference into digital cell mapping data. A consulting method characterized in that a radio wave mapping visualized by the data processing is created by a computer, the radio wave mapping is analyzed, and a method for solving an electromagnetic wave obstacle is presented. 2. The consulting method according to claim 1, wherein the mapping area is a specified area and space. 3. The mapping area includes a station premises, a station waiting room, an airport waiting room, a transportation facility, a tunnel, an underground shopping mall, an underground shopping mall, an underground passage, a subway, an inter-city,
The consulting method according to claim 1, wherein the method is between each structure, between rooms in a house building, or in a room. 4. The presentation of a method for solving the electromagnetic wave interference will be based on what kind of performance, type or part number of the electromagnetic wave absorber,
The consulting method according to claim 1, wherein the method indicates how much to perform. 5. The consulting method according to claim 1, wherein the company that creates the radio wave mapping is a printing company. 6. A method according to claim 1, wherein the method for solving the electromagnetic interference is provided by a house maker, a construction company, a general contractor, a design office,
The consulting method according to claim 1, wherein the consulting method is a government office or a general consumer.