Electromagnetic environment analysis system, electromagnetic environment analysis method, and storage medium

Abstract

The present application relates to an electromagnetic environment analysis system, an electromagnetic environment analysis method, and a storage medium. In the electromagnetic environment analysis system, a first marker is arranged on a sensor in an actual space. A second marker has information capable of specifying a relative position with respect to a position at which an image is captured in a captured image in the actual space, and is arranged at a predetermined position. A display range determination section determines a display range in which information related to a measurement value is displayed in the image, based on a detection result of the second marker. A position calculation section calculates a relative position of the first marker and the second marker, based on a detection result of the first marker and a detection result of the second marker. A division determination section determines a division corresponding to a measurement position at which each measurement value is measured, among a plurality of divisions in which the display range is divided, based on the relative position. A display information determination section determines information related to display of the division, based on the measurement value.

Description

TECHNICAL FIELD

[0001] The present application relates to an electromagnetic environment analysis system, an electromagnetic environment analysis method, and a storage medium. BACKGROUND

[0002] A device that analyzes an electromagnetic environment is known. For example, Japanese Patent Application Publication No. 2013-238581 discloses a device that acquires a measurement value related to an electromagnetic environment and displays information related to the measurement value. The device causes the information related to the acquired measurement value to correspond to a plurality of divisions that distinguish display ranges of a display section, and displays the information related to the measurement value for each division. SUMMARY

[0003] Analysis of an electromagnetic environment is performed in various uses. For example, in an EMC (electromagnetic compatibility) test of an electronic device, it is analyzed from which place of the device an electromagnetic wave is generated. In the device described in Patent Literature 1, a signal generated from a measurement target object is measured by moving an operation section including a sensor. The measurement value of the measurement is associated with each of a plurality of divisions that distinguish display ranges of a display section, according to a position at which the measurement value is measured. The measurement position at which the measurement value is measured is acquired from an image imaged by a fixed imaging device.

[0004] There is a demand to make the overall structure of an electromagnetic environment analysis system compact and to easily perform a measurement related to an electromagnetic environment, and the like. For example, in a case where an imaging device is fixed, the scale of the overall electromagnetic environment analysis system is large, and preparation for measurement is complicated. In order to specify a measurement position from an operation section displayed in an imaged image, input of various information such as an absolute position at which imaging is performed in three-dimensional space, the number of pixels of the imaged image, and a viewing angle is required. Each time the kind of the imaging device and the imaging environment are changed, the various information is required.

[0005] An object of one embodiment of the present application is to provide an electromagnetic environment analysis system that can easily perform a measurement related to an electromagnetic environment. An object of another embodiment of the present application is to provide an electromagnetic environment analysis method that can easily perform a measurement related to an electromagnetic environment. An object of still another embodiment of the present application is to provide a computer-readable storage medium that stores a program that can easily perform a measurement related to an electromagnetic environment.

[0006] An electromagnetic environment analysis system according to one embodiment includes a measurement processing section, an imaging image acquisition section, a marker detection section, a display range determination section, a position calculation section, and an image creation section. The measurement processing section acquires a plurality of measurement values related to an electromagnetic environment based on detection results of a sensor that is located in an actual space and that detects information related to the electromagnetic environment successively. The imaging image acquisition section acquires an imaging image that is imaged successively in the actual space. The marker detection section detects at least one of a first marker and at least one second marker based on the imaging image acquired by the imaging image acquisition section. The first marker is disposed on the sensor in the actual space. The at least one second marker has information that can specify a relative position with respect to a position at which the imaging image is imaged in the actual space and is disposed at a position determined in advance. The display range determination section determines a display range in which information related to the measurement values is displayed in an image based on a detection result of the at least one second marker. The position calculation section calculates a relative position of the first marker and the at least one second marker based on a detection result of the first marker and a detection result of the at least one second marker. The image creation section creates an image in which the information related to the measurement values is displayed at a position corresponding to a measurement position at which each of the measurement values is measured. The image creation section includes a division determination section and a display information determination section. The division determination section determines a division of a plurality of divisions that divide the display range, the division corresponding to the measurement position at which each of the measurement values is measured, based on the relative position calculated by the position calculation section. The display information determination section determines information related to display of the division based on the measurement value corresponding to the division.

[0007] In the electromagnetic environment analysis system, the display range determination section determines the display range in which the information related to the measurement values is displayed in the image based on the detection result of the at least one second marker. The division determination section determines the division of the plurality of divisions that divide the display range, the division corresponding to the measurement position at which each of the measurement values is measured, based on the relative position of the first marker and the at least one second marker. The display information determination section determines the information related to the display of the division based on the measurement value corresponding to the division. In this case, even if a camera that images the imaging image is not fixed, the information related to the measurement values can be displayed appropriately in the plurality of divisions in which the display range is formed. Even if various information such as an imaging position and an angle of view of the imaging image is not input in advance, the measurement position can be specified from the imaging image by the second marker and the first marker. Therefore, the electromagnetic environment analysis system can easily implement measurement related to the electromagnetic environment.

[0008] In the above-described one embodiment, the at least one second marker can include a plurality of second markers that are disposed at positions determined in advance, respectively. In this case, the three-dimensional positions of the second markers in the actual space can be recognized easily from the imaging image according to the plurality of second markers. As a result, the display range can be specified more easily.

[0009] In the one aspect described above, the mark detection section can detect the first mark and the at least one second mark from one captured image. In this case, the display range and the measurement position can be more easily specified from one image.

[0010] In the one aspect described above, the division determination section can calculate coordinates of the measurement position within the display range based on the relative position, and determine the division corresponding to the measurement value based on the calculated coordinates. In this case, the measurement position corresponding to the division can be more easily specified.

[0011] In the one aspect described above, the operation section can include a sensor and be operated by the user.

[0012] In the one aspect described above, the imaging section can be provided to the frame held by the user and sequentially capture the actual space. The captured image acquisition section can acquire the captured image from the imaging section.

[0013] In the one aspect described above, the display section can display the image created by the image creation section.

[0014] In the one aspect described above, the display section can display the image created by the image creation section. The display section can be provided to the frame. In this case, both the imaging section and the display section are provided to the frame held by the user, and thus the measurement related to the electromagnetic environment can be more easily achieved with a more compact structure.

[0015] The electromagnetic environment analysis method according to another aspect of the present application includes: acquiring a plurality of measurement values related to an electromagnetic environment based on detection results of a sensor located in an actual space and sequentially detecting information related to the electromagnetic environment; acquiring a captured image sequentially captured in the actual space; detecting at least one of a first mark and at least one second mark based on the acquired captured image; determining a display range in which information related to the measurement values is displayed in the image based on a detection result of the at least one second mark; calculating a relative position of the first mark and the at least one second mark based on a detection result of the first mark and the detection result of the at least one second mark; and creating an image in which information related to the measurement values is displayed at positions corresponding to measurement positions at which the measurement values are measured. The first mark is disposed on the sensor in the actual space. The at least one second mark has information capable of specifying a relative position with respect to a position at which the captured image is captured in the actual space and is disposed at a predetermined position. In the creation of the image, a division corresponding to the measurement position at which each of the measurement values is measured is determined from among a plurality of divisions that are distinguished based on the calculated relative position, and information related to the display of the division is determined based on the measurement value corresponding to the division.

[0016] The computer-readable storage medium in the further aspect of the present application stores a program for causing a computer to execute a process for use in an electromagnetic environment analysis method, the process including: a process of acquiring a plurality of measurement values related to an electromagnetic environment based on detection results of a sensor located in an actual space and detecting information related to the electromagnetic environment sequentially; a process of acquiring an imaging image imaged in the actual space sequentially; a process of detecting at least one of a first marker and at least one second marker based on the acquired imaging image; a process of determining a display range in which information related to a measurement value is displayed in the image based on a detection result of the at least one second marker; a process of calculating a relative position of the first marker and the at least one second marker based on a detection result of the first marker and the detection result of the at least one second marker; and a process of creating an image in which information related to a measurement value is displayed at a position corresponding to a measurement position at which each measurement value is measured. The first marker is disposed on the sensor in the actual space. The at least one second marker has information capable of specifying a relative position with respect to a position at which the imaging image is imaged in the actual space and is disposed at a predetermined position. In the creation of the image, a division corresponding to a measurement position at which each measurement value is measured is determined among a plurality of divisions of the display range based on the calculated relative position, and information related to display of the division is determined based on a measurement value corresponding to the division.

[0017] The present application will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only and thus are not to be considered as limiting the present application.

[0018] Further scope of the applicability of the present application will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the application, are given by way of illustration only, since various changes and modifications within the scope of the claims herein will become apparent to those skilled in the art from this detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a block diagram of an electromagnetic environment analysis system in the present embodiment.

[0020] Figure 2 is a diagram showing one example of a measurement target.

[0021] Figure 3 is a diagram showing a state of a display range in which a measurement result is displayed.

[0022] Figure 4 is a diagram showing a state in which a measurement position is detected.

[0023] Figure 5 is a diagram showing a measurement position for each division.

[0024] Figure 6 (a) and Figure 6 (b) is a diagram showing the zoning definition table used in the zoning setting.

[0025] Figure 7 (a) and Figure 7 (b) is a diagram used to illustrate the setting of the zoning.

[0026] Figure 8 It is a diagram used to illustrate the determination of zoning.

[0027] Figure 9 It is a diagram used to illustrate the determination of colors.

[0028] Figure 10 This is a diagram illustrating an example of the hardware structure of an electromagnetic environment analysis system.

[0029] Figure 11 This is a flowchart illustrating the measurement method using an electromagnetic environment analysis system.

[0030] Figure 12 This is a flowchart representing the marker detection process.

[0031] Figure 13 This is a flowchart showing the display and processing of measurement results.

[0032] Figure 14 This is a flowchart illustrating an example of the redesign process for administrative divisions.

[0033] Figure 15 This is a diagram used to illustrate the process of resetting zoning boundaries.

[0034] Figure 16 This is a diagram used to illustrate the process of resetting zoning boundaries.

[0035] Figure 17 This is a diagram used to illustrate the process of resetting zoning boundaries.

[0036] Figure 18 This is a diagram used to illustrate the process of resetting zoning boundaries. Detailed Implementation

[0037] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are referred to by the same reference numerals, and repeated descriptions are omitted.

[0038] First, refer to Figures 1-10 The functions and structure of the electromagnetic environment analysis system of this embodiment will be explained. Figure 1is a block diagram of an electromagnetic environment analysis system. The electromagnetic environment analysis system 1 is a system that performs a measurement related to an electromagnetic environment and displays a measurement result as an image. The electromagnetic environment analysis system 1 measures an electromagnetic field as a measurement related to an electromagnetic environment. The electromagnetic environment analysis system 1 measures, for example, an electromagnetic field generated by a measurement target. The electromagnetic field is generated, for example, by an electromagnetic wave transmitted from a measurement target. The electromagnetic field is not limited to a magnetic field generated by an electromagnetic wave of an extremely low frequency. The measurement of an electromagnetic field includes a measurement of an electromagnetic wave. Hereinafter, a measurement related to an electromagnetic environment will also be simply referred to as a "measurement".

[0039] The measurement target includes, for example, various devices such as an electronic component, a substrate on which an electronic component is mounted, and a power supply device. Figure 2 An example of a measurement target is shown. Figure 2 The measurement target 5 shown is a wireless charger. The measurement target 5 includes an electronic substrate 6 and a power supply coil 7. The measurement target 5 supplies power to an electronic device such as a smartphone by wireless from the power supply coil 7 in a state connected to a power source.

[0040] The electromagnetic environment analysis system 1 displays a result image corresponding to a position at which a measurement is performed and a measurement result. In the present embodiment, the electromagnetic environment analysis system 1 displays a composite image in which a result image and an imaging image after imaging of a measurement target are overlapped. As a modification of the present embodiment, the electromagnetic environment analysis system 1 can display a result image on a transmission-type display without making a composite image. The electromagnetic environment analysis system 1 can be, for example, a head-mounted display of a video see-through type or an optical see-through type.

[0041] In the present embodiment, the electromagnetic environment analysis system 1 acquires an imaging image while performing a measurement, and updates a display result image. Therefore, a user can perform a measurement of a desired position while referring to a result image. As a modification of the present embodiment, the electromagnetic environment analysis system 1 can make and display a result image from a measurement result that has already been measured.

[0042] As described above, the electromagnetic environment analysis system 1 can measure an electromagnetic field generated by a measurement target and display a result image in which a measurement result is overlapped with an imaging image after imaging of a measurement target. Figure 1As shown, the electromagnetic environment analysis system 1 is provided with the range determination marker 2 and the electromagnetic environment analysis device 3. The range determination marker 2 is arranged in the actual space, and is a marker for determining a range in which a measurement result is displayed or a range in which a measurement is performed. "Arranged in the actual space" means not virtually arranged on an image or the like. Hereinafter, a range determined by the range determination marker 2 is referred to as a "display range". The range determination marker 2 is physically separated from the electromagnetic environment analysis device 3, and is arranged by a user in a predetermined position in the actual space. The range determination marker 2 has a feature point at which the electromagnetic environment analysis device 3 can recognize a three-dimensional position of the range determination marker 2 in the actual space. For example, the range determination marker 2 includes a two-dimensional code or the like pattern having such a feature point. The two-dimensional code, for example, includes three-dimensional position information of the range determination marker 2. The three-dimensional position information is information capable of specifying a three-dimensional position of the range determination marker itself. In other words, the range determination marker 2 has information capable of specifying a position at which an image is captured in the actual space and a relative position of the range determination marker 2. The range determination marker 2 is not limited to this form if the electromagnetic environment analysis device 3 can recognize a position of the range determination marker 2 in the actual space.

[0043] In the present embodiment, as shown in Figures 3-5 The range determination marker 2 includes a plurality of range determination markers 2a, 2b. Each of the plurality of range determination markers 2a, 2b is arranged at a predetermined position. In the present embodiment, each of the range determination markers 2a, 2b has three-dimensional position information by a two-dimensional code or the like. Each of the range determination markers 2a, 2b can have information capable of specifying a position in an image even if it does not have information capable of specifying a three-dimensional position as a single body. In Figures 3-5 The two range determination markers 2a, 2b are arranged around the measurement target object 5. In Figures 3-5 In the example shown, as described above, the measurement target object 5 is a wireless charger. The measurement target object 5 performs an operation in a state in which the smartphone 8 is arranged above the power supply coil 7. For example, a display range RA in which a measurement result is displayed is a rectangle, and the vertices of the diagonal of the display range RA are determined with the two range determination markers 2a, 2b as a reference. The top left vertex of the display range RA is determined by the range determination marker 2a, and the bottom right vertex of the display range RA is determined by the range determination marker 2b.

[0044] In the present embodiment, as shown in Figures 3-5 The electromagnetic environment analysis device 3 determines a display range RA in which a measurement result is displayed by recognizing the range determination marker 2. In a modified example of the present embodiment, the electromagnetic environment analysis device 3 can also determine a measurement range in which a measurement is performed in the actual space by recognizing the range determination marker 2.

[0045] As Figure 1As shown, the electromagnetic environment analysis device 3 includes an operation unit 10 and a main body 20. The operation unit 10 and the main body 20 are electrically connected via wired or wireless means. The operation unit 10 includes a sensor 11 and a sensor marker 12. Figure 4 and Figure 5 As shown, the operation unit 10 is operated by the user and positioned at the desired measurement location. The operation unit 10 is moved by the user relative to the measurement object 5. The operation unit 10 can be moved by the user's hand or by the user's electronic operation, and thus by mechanical movement. The sensor 11 is located in the actual space and successively detects information related to the electromagnetic environment. The sensor 11 successively detects the signal set as the object. The sensor 11 includes, for example, an antenna, an electric field probe, or a magnetic field probe. The sensor 11 transmits the detected signal to the main body 20. The sensor 11 detects at least one of the following as detection information: information related to the strength of at least one of an electric field and a magnetic field, information related to the intensity of an electromagnetic wave, information related to the phase of an electromagnetic wave, and information related to the waveform of an electromagnetic wave. The detection information includes, for example, the current value or voltage value generated in the electric field probe or the magnetic field probe. The sensor 11 transmits the detected detection information to the main body 20. When the sensor mark 12 corresponds to the first mark, the range determination mark 2 corresponds to the second mark.

[0046] Sensor marker 12 is disposed on sensor 11 in the actual space and moves together with sensor 11. In other words, sensor 11 and sensor marker 12 move as the user moves the operating unit 10. Sensor marker 12 is a marker used to obtain the position of sensor 11 in the actual space. Like range determination marker 2, sensor marker 12 has feature points that the electromagnetic environment analysis device 3 can identify the three-dimensional position of sensor marker 12 in the actual space through image recognition. For example, sensor marker 12 includes graphics such as a QR code with these feature points. The QR code contains, for example, three-dimensional position information of sensor marker 12. Sensor marker 12 is not limited to this form if the electromagnetic environment analysis device 3 can identify the position of sensor marker 12 in the actual space. Sensor marker 12 may not have information that can specify a specific three-dimensional position on its own, as long as it has information that can specify a position within a camera image.

[0047] like Figure 1 As shown, the main body 20 includes: a camera unit 21, a storage unit 22, a measurement and processing unit 23, a display unit 24, and a display control unit 25. The camera unit 21, storage unit 22, measurement and processing unit 23, display unit 24, and display control unit 25 can be housed in one frame or distributed across multiple frames. When housed in multiple frames, they can be interconnected via wired or wireless connections.

[0048] The imaging section 21 sequentially images the imaging image in the actual space. The imaging section 21 images at a predetermined time interval. The imaging section 21 delivers the imaging image to the display control section 25. In the present embodiment, the imaging section 21 is provided to the frame body held by the user. The imaging section 21 is moved by the user. The imaging section 21 changes the position and the posture by the operation of the user.

[0049] The storage section 22 stores the data acquired in advance and the data acquired from various functional sections in the main body section 20. The storage section 22 stores, for example, the data acquired from the imaging section 21, the measurement processing section 23, and the display control section 25.

[0050] The measurement processing section 23 acquires the detection information detected in the sensor 11, processes the acquired detection information, and outputs the processed detection information as measurement information. The measurement information corresponds to the measurement result. The measurement processing section 23 functions as, for example, a spectrum analyzer, a network analyzer, or an oscilloscope. The measurement processing section 23 delivers the measurement information to the display control section 25. The measurement information includes a plurality of measurement values related to the electromagnetic environment and additional information corresponding to each measurement value. The measurement values include various physical values. In the present embodiment, the measurement values are values indicating the intensity of the electromagnetic wave and correspond to the measurement result. For example, the measurement values of the present embodiment are values indicating the intensity of the electric field or the magnetic field. The additional information includes, for example, at least one of information related to the intensity of the electromagnetic wave, information related to the phase of the electromagnetic wave, information related to the frequency component of the electromagnetic wave, and information related to the timing of measurement.

[0051] The measurement processing section 23 acquires a plurality of measurement values related to the electromagnetic environment based on the detection result of the sensor 11. The measurement processing section 23 processes, for example, the detection information detected in the sensor 11, and calculates the intensity of a plurality of frequency components as measurement information in each measurement. The measurement processing section 23 sets the intensity of each frequency component as a measurement value at, for example, each measurement position. For example, the measurement processing section 23 calculates the intensity of 100 to 500 frequency components in a predetermined frequency band.

[0052] The display section 24 displays at least one of the imaging image in the imaging section 21 and the measurement image created in the display control section 25. The measurement image is an image indicating the measurement information processed in the measurement processing section 23. The display section 24 includes a display that displays the image. In the present embodiment, the display section 24 is provided to the same frame body as the imaging section 21. The display section 24 is moved together with the imaging section 21 by the user. As a modification of the present embodiment, the display section 24 can also display the image in a display outside the electromagnetic environment analysis system 1.

[0053] The display control section 25 controls the display of the display section 24. The display control section 25 creates an image displayed in the display section 24 based on at least one of the captured image of the imaging section 21 and the measurement information of the measurement processing section 23. As shown in Figure 1 The display control section 25 includes a position information acquisition section 31, a display range determination section 32, a position relationship judgment section 33, a measurement information acquisition section 34, and an image creation section 35.

[0054] The position information acquisition section 31 acquires position information related to the measurement position at which each measurement value is measured. The position information acquisition section 31 calculates the position information related to the measurement position based on, for example, the captured image in the imaging section 21. As shown in Figure 1 The position information acquisition section 31 includes a captured image acquisition section 41, a marker detection section 42, and a marker position calculation section 43. The captured image acquisition section 41 acquires the captured image from the imaging section 21. In other words, the captured image acquisition section 41 acquires the captured image that is captured sequentially in the actual space.

[0055] The marker detection section 42 detects at least one of the range determination marker 2 and the sensor marker 12 based on the captured image acquired in the captured image acquisition section 41. In the present embodiment, at least one of the range determination marker 2 and the sensor marker 12 is detected from one captured image. The marker detection section 42 detects the characteristic point of each range determination marker 2. The marker detection section 42 detects the characteristic point of the sensor marker 12.

[0056] The marker position calculation section 43 calculates the position of at least one of the range determination marker 2 and the sensor marker 12 based on the detection result of the marker detection section 42. The marker position calculation section 43 calculates the relative position of the range determination marker 2 and the sensor marker 12 based on the detection result of the range determination marker 2 and the detection result of the sensor marker 12. In the present embodiment, the marker position calculation section 43 calculates the position of at least one of the range determination marker 2 and the sensor marker 12 in the captured image. As a modification of the present embodiment, the marker position calculation section 43 can also calculate the three-dimensional position of at least one of the range determination marker 2 and the sensor marker 12 in the actual space.

[0057] In the present embodiment, the marker position calculation section 43 calculates the three-dimensional position of each range determination marker 2 based on the characteristic point of each range determination marker 2 detected in the marker detection section 42. For example, as shown in Figures 3-5 The marker position calculation section 43 calculates the position PI of the corner of the two-dimensional code of each range determination marker 2 in the actual space as the vertex of the display range from the characteristic point of each range determination marker 2. In the present embodiment, the marker position calculation section 43 calculates the three-dimensional position of the sensor marker 12 based on the characteristic point of the sensor marker 12 detected in the marker detection section 42. For example, as shown in Figure 4 andFigure 5 As shown, the marker position calculating section 43 calculates the position P2 of the corner of the two-dimensional code of the sensor marker 12 in the actual space based on the feature points of the sensor marker 12. The position P2 of the sensor marker 12 corresponds to the position of the sensor 11. The position of the sensor 11 at the time of measurement corresponds to the measurement position. Hereinafter, the position of the sensor 11 is referred to as "sensor position".

[0058] The display range determining section 32 determines the display range RA in which information related to the measurement value is displayed in the image based on the detection result of the marker detecting section 42. The display range determining section 32 determines the display range RA in which the measurement information is displayed in the display section 24 based on the positions of the range determination markers 2 calculated in the marker position calculating section 43. In the present embodiment, the display range determining section 32 determines the display range RA based on, for example, the positions of the two range determination markers 2 calculated in the marker position calculating section 43. For example, the marker position calculating section 43 calculates the positions P1 of the range determination markers 2a, 2b or the sizes of the regions defined by the range determination markers 2a, 2b based on the detection result of the marker detecting section 42. For example, as shown in FIG. 6, the marker position calculating section 43 calculates the positions P1 of the range determination markers 2a, 2b based on the feature points of the sensor marker 12. Figures 3-5 As shown, the display range determining section 32 determines the display range RA as a region in the shape of a rectangle having the positions P1 of the respective range determination markers 2 as two vertices of a diagonal line. In other words, the display range determining section 32 determines the display range RA as a region in the shape of a quadrangle having, for example, a line portion connecting the position P1 of the range determination marker 2a and the position P1 of the range determination marker 2b as a diagonal line.

[0059] As a modification of the present embodiment, the display range determining section 32 can determine a region in the shape of a circle as the display range RA. The display range determining section 32 can determine, for example, a region in the shape of a quadrangle having a line portion connecting the position P1 of the range determination marker 2a and the position P1 of the range determination marker 2b as a diameter as the display range RA. For example, the display range determining section 32 can determine a region in the shape of a circle having one range determination marker 2 as a center as the display range RA. In this case, information defining the radius of the circle can be stored in the storage section 22 in advance.

[0060] The display range determining section 32 can set, for example, a region in the shape of a triangle having the positions P1 of the three range determination markers 2 as vertices as the display range RA. The display range determining section 32 can set a region in the shape of a circle circumscribed around a triangle having the positions P1 of the three range determination markers 2 as vertices as the display range RA.

[0061] The marker position calculating section 43 can also calculate the size of the range determination marker 2 based on the detection result of the marker detecting section 42. For example, the marker position calculating section 43 can acquire information about the relative position of the imaging section 21 and the range determination marker 2 from the size of the range determination marker 2. In this case, the display range determining section 32 can determine the display range RA of the size corresponding to the information about the relative position of the imaging section 21 and the range determination marker 2. For example, the display range determining section 32 can determine the radius of the above-mentioned circle based on the size of the range determination marker 2 calculated by the marker position calculating section 43.

[0062] The positional relationship judging section 33 judges the positional relationship between the display range RA determined by the display range determining section 32 and the sensor position calculated by the marker position calculating section 43. For example, the positional relationship judging section 33 judges whether the sensor position is within the display range RA. For example, the positional relationship judging section 33 judges whether the position P2 of the sensor marker 12 is within the display range RA.

[0063] The measurement information acquiring section 34 acquires measurement information from the measurement processing section 23. In other words, the measurement information acquiring section 34 acquires a plurality of measurement values related to the electromagnetic environment and additional information corresponding to each measurement value. The measurement information acquiring section 34 acquires the plurality of measurement values output from the measurement processing section 23 based on the detection information detected by the sensor 11. The measurement information acquiring section 34 transmits the acquired measurement information to the image creating section 35. The measurement information acquiring section 34 associates, for example, the measurement position and the measurement value and stores them in the storage section 22. The measurement information acquiring section 34 can acquire the measurement values and the measurement positions associated with each other from the storage section 22.

[0064] The image creating section 35 creates an image in which information related to the measurement value is displayed at a position corresponding to the measurement position of each measurement value. The image created in the image creating section 35 is displayed in the display section 24, for example. The image creating section 35 creates an image based on the detection result of the marker detecting section 42. The image creating section 35 creates a result image corresponding to the measurement position and the measurement result calculated in the marker position calculating section 43. In the present embodiment, the result image contains at least one of information indicating the sensor position, information indicating the display range RA, and information indicating the measurement result. For example, as shown in Figs. 17A and 17B, the information indicating the sensor position is a circle P3 centered on the measurement position. For example, the result image indicates the display range RA and indicates the measurement result within the display range RA. The image creating section 35 creates a result image indicating only the display range RA in a case where no measurement value corresponding to the display range RA is acquired. In the present embodiment, the image creating section 35 creates a composite image in which the result image is superimposed on the captured image. As shown in Figs. 17A and 17B, the image creating section 35 creates a composite image in which the result image is superimposed on the captured image. Figure 4 and Figure 5 As shown in Figs. 17A and 17B, the information indicating the sensor position is a circle P3 centered on the measurement position. For example, the result image indicates the display range RA and indicates the measurement result within the display range RA. The image creating section 35 creates a result image indicating only the display range RA in a case where no measurement value corresponding to the display range RA is acquired. In the present embodiment, the image creating section 35 creates a composite image in which the result image is superimposed on the captured image. As shown in Figs. 17A and 17B, the image creating section 35 creates a composite image in which the result image is superimposed on the captured image. Figure 1As shown, the image production unit 35 includes a region processing unit 51, a display information determination unit 52, and a compositing unit 53.

[0065] like Figure 5 As shown, the zoning processing unit 51 performs the process of setting multiple zoning areas PA within the display range RA. The multiple zoning areas PA are regions that distinguish the display range RA. In other words, the display range RA is formed by multiple zoning areas PA. Furthermore, in other words, the multiple zoning areas PA are regions that distinguish the display range RA from which the measurement results will be displayed in the result image produced in the image production unit 35. Each zoning area PA has a higher resolution than the measurement location. Figure 5 In this context, it indicates that multiple measurement locations P4 are located within a single zone PA. For example... Figure 1 As shown, the zoning processing unit 51 includes a zoning setting unit 61, a zoning determination unit 62, and a resetting determination unit 63.

[0066] The zoning setting unit 61 sets multiple zones PA within the display range RA. In other words, the zoning setting unit 61 sets multiple zones PA by differentiating the display range RA that displays information related to the measured value. In other words, the display range RA is formed by multiple zones PA. In this embodiment, the zoning setting unit 61 sets multiple zones PA based on the information shown in the zoning definition table pre-stored in the storage unit 22. Figure 6 (a) and Figure 6 (b) An example of a zone definition table. Storage unit 22 pre-stores, for example, multiple zone definition tables 71 and 72. Each zone definition table 71 and 72 defines the structure of multiple zones forming the display range RA. The multiple zone definition tables 71 and 72 define the structure of each zone PA within the display range RA, distinguished by mutually different numerical definitions. In other words, the structure of each zone PA when the display range RA is distinguished by mutually different numerical definitions.

[0067] For example, the zoning setting unit 61 sets the zoning definition table used in the zoning determination unit 62 for judgment based on multiple zoning definition tables 71 and 72 pre-stored in the storage unit 22. Figure 6 (a) shows the zoning definition table 71 and Figure 6 (b) The zoning definition table 72 shown indicates the size and number of multiple zones PA that form the display area RA, as well as the position of each zone PA. The zoning definition table can also indicate the number of display areas RA that are distinguished. Figure 7 (a) indicates the state of the display range RA based on the zoning definition table 71. Figure 7(b) indicates a state in which the display range RA is distinguished based on the zone definition table 72. The zone PA is changed from the zone PA1 to the zone PA2 by changing the zone definition table. The number of display ranges RA is different between the zone definition table 71 and the zone definition table 72. The sizes of the zones PA1 and PA2 are different from each other. The size of each zone PA indicated in the zone definition table 72 is smaller than the size of each zone PA indicated in the zone definition table 71.

[0068] The zone determination section 62 determines the zone PA corresponding to the measurement position of each measurement value based on the position information acquired in the position information acquisition section 31, among a plurality of zones PA. In the present embodiment, the zone determination section 62 calculates the coordinates of the measurement position P4 within the display range RA, that is, the coordinates of the position P2 of the sensor marker 12, based on the relative position of the range determination marker 2 and the sensor marker 12 calculated in the marker position calculation section 43. For example, the zone determination section 62 calculates the coordinates of the position P2 of the sensor marker 12 with the position P1 of the range determination marker 2a as the origin. The zone determination section 62 determines the zone PA corresponding to the measurement value based on the calculated coordinates. In the present embodiment, the zone determination section 62 determines the zone PA corresponding to the measurement position of each measurement value based on the zone definition table set in the zone setting section 61. The zone determination section 62 stores the determination result in the storage section 22, for example.

[0069] Figure 8 An example of the measurement information stored in the storage section 22 after the zone is determined by the zone determination section 62 is shown in FIG. 17. Figure 8 In FIG. 17, the storage section 22 stores the measurement information D1 to D4 in which the X coordinate and the Y coordinate indicating the measurement position are associated with the measurement value. Figure 8 The column of the zone in FIG. 17 indicates the determination result of the zone determination section 62. Figure 8 In the example shown in FIG. 17, the zone PA corresponding to the measurement position of each measurement value is determined based on the X coordinate and the Y coordinate indicating the measurement position and the zone definition table 71.

[0070] The reset determination section 63 determines whether the plurality of zones PA is reset by the zone setting section 61. In other words, the reset determination section 63 determines whether the size of the plurality of zones PA forming the display range RA is changed. In a case where the reset determination section 63 determines that the plurality of zones PA is reset, the zone setting section 61 performs the reset of the plurality of zones PA by changing the number of the plurality of zones PA forming the display range RA. For example, the zone setting section 61 performs the reset of the plurality of zones PA by changing the number of the display ranges RA. For example, in a case where the reset determination section 63 determines that the plurality of zones PA is reset, the zone setting section 61 changes the zone definition table. In this case, the zone setting section 61 changes the zone definition table to be referred to from the zone definition table 71 shown in (a) to the zone definition table 72 shown in (b), for example. Figure 6 (a) shown in the zone definition table 71 toFigure 6 (b) shown. In a case where the re-setting determination section 63 determines to re-set the plurality of zones PA, the zone setting section 61 re-sets the plurality of zones PA forming the display range RA by, for example, change of the zone definition table from Figure 7 (a) shown to Figure 7 (b) shown.

[0071] When the re-setting of the plurality of zones PA is performed by the zone setting section 61, the zone determination section 62 determines the zone PA corresponding to the measurement position of each measurement value in the re-set plurality of zones PA. In other words, the zone determination section 62 re-determines the zone PA corresponding to the measurement position of each measurement value based on the changed zone definition table. For example, in a case where the re-setting determination section 63 determines to re-set the plurality of zones PA and the zone setting section 61 re-sets the plurality of zones PA2, the zone determination section 62 determines the zone PA2 corresponding to the measurement position of each measurement value in the plurality of zones PA2 based on the position information.

[0072] In the present embodiment, the re-setting determination section 63 determines to perform the re-setting in a case where a prescribed condition is satisfied in the processing within the electromagnetic environment analysis device 3. For example, the re-setting determination section 63 determines to perform the re-setting in a case where the number of zones PA corresponding to the measurement values exceeds a prescribed number. In other words, the re-setting determination section 63 determines to perform the re-setting in a case where the number of zones PA displaying the measurement result exceeds a prescribed value. The re-setting determination section 63 determines to perform the re-setting in a case where, for example, the proportion of the number of zones PA corresponding to the measurement values to the number of divisions of the display range RA exceeds a prescribed value. The "number of divisions of the display range RA" is the number of divisions of the display range RA, that is, the number of zones PA forming the display range RA. The re-setting determination section 63 prohibits the re-setting of the plurality of zones PA in a case where the number of times of the re-setting of the plurality of zones PA exceeds a prescribed number.

[0073] The re-setting determination section 63 can determine to re-set the plurality of zones PA in a case where at least one of a plurality of conditions set in advance is satisfied. The size of each zone re-set by the zone setting section 61 can be different depending on the satisfied condition. In other words, the number of divisions of the display range RA can be different depending on the satisfied condition.

[0074] The plurality of conditions can be different operations or calculations by the user, or can be the same operation or calculation and different in the timing or number of inputs. For example, the division setting section 61 can also newly set a plurality of divisions PA in a case where a condition such as a first input operation by the user is satisfied, and further newly set a plurality of divisions PA in a case where a condition such as a second input operation by the user is satisfied. At this time, the size of each division newly set by the division setting section 61 in the case where the condition such as the first input operation is satisfied can be smaller than the size of each division newly set by the division setting section 61 in the case where the condition such as the second input operation is satisfied. In other words, the size of each division newly set by the division setting section 61 in the case where the first condition is satisfied can be smaller than the size of each division newly set by the division setting section 61 in the case where a second condition satisfied before the first condition is satisfied is satisfied.

[0075] As a modification of the present embodiment, the re-setting determination section 63 can determine that re-setting is performed in accordance with a prescribed input operation by the user. For example, in a case where a switch is operated by the user, the re-setting determination section 63 can determine that re-setting is performed. For example, the re-setting determination section 63 determines that a prescribed condition is satisfied in processing in the electromagnetic environment analysis device 3 and that a prescribed input operation by the user is performed in accordance with the state of a flag.

[0076] The display information determination section 52 determines information displayed in the display section 24. For example, information determined by the display information determination section 52 is displayed as an image in the display section 24. The display information determination section 52 determines, for example, information used in the production of a result image. The display information determination section 52 determines information related to the display of each division PA based on a measured value corresponding to each division PA. The display information determination section 52 determines information displayed in a division PA corresponding to a measured value. In the present embodiment, the display information determination section 52 determines that information displayed in a division PA having a measured value that does not correspond is Null. As a modification of the present embodiment, the display information determination section 52 can not determine information in a division PA having a measured value that does not correspond.

[0077] In a case where the re-setting determination section 63 determines that a plurality of divisions PA are re-set, the display information determination section 52 determines information related to the display of a division PA based on a measured value corresponding to the re-set division PA. For example, in a case where the re-setting determination section 63 determines that a plurality of divisions PA are re-set and the division setting section 61 re-sets a plurality of divisions PA2, the display information determination section 52 determines information related to the display of the division PA2 based on a measured value corresponding to the division PA2.

[0078] The display information determination unit 52 determines a representative value based on, for example, the measured value corresponding to each zone PA, and determines information related to the display of each zone PA based on the representative value. The information related to the display of each zone PA may be, for example, the color displayed in each zone PA. The information related to the display of each zone PA may also not be a color, but rather a number or symbol representing the representative value. In this embodiment, if there is a zone PA whose measured value does not correspond, the display information determination unit 52 determines that the representative value in that zone PA is null. If the representative value corresponding to a zone PA is null, the display information determination unit 52 determines that the zone PA is set to colorless or not displayed.

[0079] The display information determination unit 52 determines the color displayed in each zone PA based on, for example, the magnitude of the measured value corresponding to each zone PA. For example, the display information determination unit 52 determines the color displayed in each zone PA as... Figure 9 The colors in the color distribution table 55 shown correspond to the magnitudes of the measured values. Figure 9 In the diagram, arrow V represents a measured value within a certain zoning area PA. Figure 9 In this context, the higher the measured value, the higher the concentration of the color displayed in each PA zone. For example, ... Figure 5 As shown, multiple color zones PA are divided according to the magnitude of the measured values ​​located in each zone PA. The display information determination unit 52 can also display icons in the zones PA containing predetermined representative values ​​within the display range RA. The predetermined representative value is, for example, the largest representative value within the display range RA. The predetermined representative value could also be, for example, the smallest representative value within the display range RA, etc.

[0080] like Figure 5 As shown, the display information determination unit 52 calculates a representative value based on two or more measured values ​​and determines information related to the display of zone PA based on the representative value when two or more measured values ​​measured at different times correspond to a zone PA. "Two or more measured values ​​correspond to a zone PA" means that a measurement position P4 with two or more measured values ​​is configured in a zone. The display information determination unit 52 calculates the representative value based on additional information and the two or more measured values. "Calculation of the representative value from two or more measured values" includes selecting "the representative value from two or more measured values". In this embodiment, the display information determination unit 52 selects the representative value based on information related to the intensity of electromagnetic waves and the two or more measured values. For example, the display information determination unit 52 sets the maximum, minimum, median, or mode of two or more measured values ​​as the representative value and determines information related to the display of zone PA. As a variation of this embodiment, the display information determination unit 52 may also calculate the average value of two or more measured values, set the calculated average value as the representative value, and determine information related to the display of zone PA.

[0081] As a modification of the present embodiment, the display information determination section 52 can determine information related to the display of each zone PA based on the frequency component. For example, a case where the plurality of measurement values include a plurality of first measurement values related to electromagnetic waves of a first frequency component and a plurality of second measurement values related to electromagnetic waves of a second frequency component is studied. In this case, the display information determination section 52 determines first information related to the display of the zone PA based on, for example, the first measurement values corresponding to the zone PA. The display information determination section 52 determines second information related to the display of the zone PA based on, for example, the second measurement values corresponding to the zone PA. The display information determination section 52 calculates a first representative value from two or more first measurement values corresponding to one zone PA and determines the first information related to the display of the zone PA based on the first representative value in a case where the two or more first measurement values are measured at different timings from each other. The display information determination section 52 calculates a second representative value from two or more second measurement values corresponding to one zone PA and determines the second information related to the display of the zone PA based on the second representative value in a case where the two or more second measurement values are measured at different timings from each other. The first information and the second information can be displayed simultaneously in each zone PA.

[0082] As a modification of the present embodiment, the display information determination section 52 can select at least one measurement value from two or more measurement values based on the frequency component and calculate a representative value from the selected at least one measurement value. For example, the display information determination section 52 calculates one measurement value as a representative value based on other additional information other than the frequency component from two or more measurement values selected based on the frequency component. For example, the display information determination section 52 can determine information related to the display of the zone PA based on information related to the intensity of electromagnetic waves by setting an average value of two or more measurement values selected based on the frequency component as a representative value. For example, the display information determination section 52 can select a measurement value related to electromagnetic waves of a prescribed frequency band from two or more measurement values. The display information determination section 52 can select a measurement value related to electromagnetic waves of a plurality of frequency components from two or more measurement values.

[0083] The synthesis section 53 produces a synthesized image in which the result image and the captured image are synthesized. The image production section 35 outputs the synthesized image produced in the synthesis section 53 to the display section 24. The synthesis section 53 does not produce a synthesized image in a case where at least one of the result image and the captured image is not present. The image production section 35 outputs only the result image to the display section 24 in a case where the captured image is not present. The image production section 35 outputs only the captured image to the display section 24 in a case where the result image is not present.

[0084] Next, the hardware configuration of the electromagnetic environment analysis device 3 will be described with reference to FIG. 6. Figure 10 The hardware configuration of the electromagnetic environment analysis device 3 will be described with reference to FIG. 6. Figure 10is a diagram showing an example of a hardware configuration of the electromagnetic environment analysis device 3.

[0085] The electromagnetic environment analysis device 3 is provided with a processor 101, a main storage device 102, an auxiliary storage device 103, a communication device 104, an input device 105, an output device 106, an imaging device 107, a probe 108, and a display 109. The electromagnetic environment analysis device 3 includes one or more computers configured by these hardware and programs and the like software. The electromagnetic environment analysis device 3 is realized by cooperating with the hardware.

[0086] In a case where the electromagnetic environment analysis device 3 is configured by a plurality of computers, these computers can be connected by a local connection, or can be connected via a communication network such as the Internet or an intranet. By this connection, one electromagnetic environment analysis device 3 is logically configured.

[0087] The processor 101 executes an operating system and applications and the like. The main storage device 102 is configured by a ROM (Read Only Memory) and a RAM (Random Access Memory). For example, at least a part of the measurement processing section 23 and the display control section 25 is realized by the processor 101 and the main storage device 102. The processor 101 and the main storage device 102 configure a part of a spectrum analyzer, a network analyzer, or an oscilloscope.

[0088] The auxiliary storage device 103 is a storage medium configured by a hard disk and a flash memory and the like. The auxiliary storage device 103 generally stores a larger amount of data than the main storage device 102. For example, at least a part of the storage section 22 is realized by the auxiliary storage device 103.

[0089] The auxiliary storage device 103 stores programs and data necessary in processing in advance. The programs cause the computer to execute each functional element of the electromagnetic environment analysis device 3. By the programs, for example, the processing S1 and the processing S3 to the processing S7 are executed in the computer. The programs can also be provided by being recorded on a tangible recording medium such as a CD-ROM, a DVD-ROM, a semiconductor memory, and the like. The programs can also be provided as a data signal via a communication network.

[0090] The communication device 104 is configured by a network card or a wireless communication module. For example, at least a part of the imaging image acquisition section 41 and the measurement information acquisition section 34 is realized by the communication device 104. The input device 105 is configured by a keyboard, a mouse, a touch panel, and the like. For example, at least a part of the operation section 10, the display section 24, the imaging image acquisition section 41, the measurement information acquisition section 34, and the re-setting determination section 63 is realized by the input device 105. The output device 106 is configured by an alarm and a printer and the like. For example, at least a part of the image production section 35 is realized by the output device 106.

[0091] The imaging device 107 is constituted by a video camera or a still camera. For example, at least a part of the imaging section 21 is realized by the imaging device 107. The probe 108 is connected to an input terminal of a spectrum analyzer, a network analyzer, or an oscilloscope. For example, at least a part of the operation section 10 is realized by the probe 108. The display 109 includes a monitor of a computer, a display screen of a mobile terminal, or a projection screen. For example, at least a part of the display section 24 is realized by the display 109.

[0092] Next, referring to Figures 11-14 An example of a measurement method using the electromagnetic environment analysis system will be described. Figure 11 is a flowchart showing an electromagnetic environment analysis method using the electromagnetic environment analysis system.

[0093] First, the division processing section 51 acquires initial settings of a plurality of divisions PA (process S1). For example, the division processing section 51 acquires the initial settings which are previously stored in the storage section 22. The initial settings include, for example, a division definition table.

[0094] Next, the range determination markers 2 are arranged (process S2). For example, the user arranges a plurality of range determination markers 2 around a display range of a measurement result. In other words, the user arranges a plurality of range determination markers 2 around a range in which measurement is performed. The plurality of range determination markers 2 can also be arranged at a position which is previously set by a not-shown device included in the electromagnetic environment analysis system 1. In the present embodiment, as shown in Figure 3 two range determination markers 2 are arranged at the vertices on the diagonal line of the desired display range RA.

[0095] Next, the imaging image acquisition section 41 acquires an imaging image (process S3). The imaging image acquisition section 41 acquires an imaging image which is imaged in the imaging section 21. The imaging section 21 images the range determination markers 2. For example, the imaging section 21 images so that all of the plurality of range determination markers 2 arranged in the process S2 enter one imaging image. For example, the imaging section 21 images so as to acquire a feature point indicating a three-dimensional position for each range determination marker 2. In the process S3, the imaging section 21 can also image the sensor marker 12 together with the range determination markers 2.

[0096] Next, the marker detection processing is performed by the marker detection section 42, the marker position calculation section 43, the display range determination section 32, and the position relationship judgment section 33 (process S4). In the marker detection processing, the positions of at least one of the range determination markers 2 and the sensor marker 12 are acquired from the imaging image acquired in the process S3. In the marker detection processing, the positional relationship of the range determination markers 2 and the sensor marker 12 is judged.

[0097] Next, the display control section 25 determines whether or not to acquire the captured image again (process S5). The display control section 25 determines whether or not to acquire the captured image again on the basis of the detection results of the range determination marker 2 and the sensor marker 12 in the process S4. In a case where it is determined to acquire the captured image again, the process returns to the process S3.

[0098] In the process S5, in a case where it is determined not to acquire the captured image again, the display process of the measurement result is performed by the image production section 35 (process S6). In the display process of the measurement result, the result image corresponding to the position on which the measurement is performed and the measurement result is displayed in the display section 24.

[0099] Next, the display control section 25 determines whether or not to end the process (process S7). In the process S7, in a case where it is determined not to end the process, the process returns to the process S3. In the process S7, in a case where it is determined to end the process, the series of processes is ended.

[0100] Next, the marker detection process in the process S4 is described in detail. Figure 12 is a flowchart showing the marker detection process.

[0101] First, the marker detection section 42 determines whether or not the range determination marker 2 is present in the captured image (process S11). The marker detection section 42 performs image detection of the feature points of the range determination marker 2 from, for example, the captured image. The marker detection section 42 determines that the range determination marker 2 is present in the captured image in a case where the feature points of the range determination marker 2 are recognized in the captured image. The marker detection section 42 determines that the range determination marker 2 is not present in the captured image in a case where the feature points of the range determination marker 2 are not recognized in the captured image. In the process S11, in a case where it is determined that the range determination marker 2 is present, the process proceeds to the process S12. In the process S11, in a case where it is determined that the range determination marker 2 is not present, the process proceeds to the process S21.

[0102] In a case where it is determined in the process S11 that the range determination marker 2 is present, it is determined whether or not the sensor marker 12 is present in the captured image (process S12). The marker detection section 42 performs image detection of the feature points of the sensor marker 12 from, for example, the captured image. The marker detection section 42 determines that the sensor marker 12 is present in the captured image in a case where the feature points of the sensor marker 12 are recognized in the captured image. The marker detection section 42 determines that the sensor marker 12 is not present in the captured image in a case where the feature points of the sensor marker 12 are not recognized in the captured image. In the process S12, in a case where it is determined that the sensor marker 12 is present, the process proceeds to the process S17. In the process S12, in a case where it is determined that the sensor marker 12 is not present, the process proceeds to the process S13.

[0103] When it is determined in the processing S12 that there is no sensor mark 12, the mark position calculating section 43 acquires the position PI of the range determination mark 2 (processing S13). For example, the mark position calculating section 43 calculates the position PI of the range determination mark 2 in the captured image, and outputs the calculation result to the position relationship judging section 33 and the storage section 22.

[0104] When the processing S13 ends, the position relationship judging section 33 judges whether the position PI of the range determination mark 2 is appropriate (processing S14). For example, the position relationship judging section 33 judges whether the position relationship of the plurality of range determination marks 2a, 2b is appropriate. For example, the position relationship judging section 33 judges that the position relationship of the plurality of range determination marks 2a, 2b is appropriate when each of the range determination marks 2a, 2b is disposed at a position where the display range RA of the rectangle can be specified. For example, the position relationship judging section 33 judges that each of the range determination marks 2a, 2b is disposed at a position where the display range RA can be specified when the position PI of the range determination mark 2a is located at the upper left of the position PI of the range determination mark 2b in the captured image. When it is judged that the position PI of the range determination mark 2 is not appropriate, the processing proceeds to the processing S15. When it is judged that the position PI of the range determination mark 2 is appropriate, the processing proceeds to the processing S16.

[0105] When it is judged in the processing S14 that the position PI of the range determination mark 2 is not appropriate, the display control section 25 causes the display section 24 to display the captured image (processing S15). For example, in the processing S15, the display information determining section 52 determines that only the captured image is displayed on the display section 24. The image producing section 35 does not produce a composite image in the compositing section 53, and outputs only the captured image to the display section 24. As a result, the display section 24 displays only the captured image. When the processing S15 ends, the mark detection processing ends, and the processing result is returned.

[0106] When it is judged in the processing S14 that the position PI of the range determination mark 2 is appropriate, the display control section 25 causes the display section 24 to display the captured image and the display range RA (processing S16). In the processing S16, the display range determining section 32 determines the display range RA based on the detection result of the range determination mark 2. For example, in the processing S16, the display information determining section 52 determines that the display range RA and the captured image are displayed in the display section 24. The image producing section 35 outputs a composite image in which a result image indicating only the display range RA and the captured image are synthesized, to the display section 24. As a result, as shown in FIG. 18, the display section 24 displays the display range RA and the captured image. When the processing S16 ends, the mark detection processing ends, and the processing result is returned. Figure 3

[0107] ​When it is determined in the processing S12 that the sensor mark 12 is present, the mark position calculating section 43 acquires the position PI of the range determination mark 2 and the position P2 of the sensor mark 12 (processing S17). For example, the mark position calculating section 43 calculates the position PI of the range determination mark 2 within the captured image and the position P2 of the sensor mark 12 within the captured image, and outputs the calculation results to the position relationship judging section 33 and the storage section 22. In the processing S17, the mark position calculating section 43 calculates the relative positions of the range determination mark 2 and the sensor mark 12 on the basis of the detection result of the range determination mark 2 and the detection result of the sensor mark 12. The position P2 of the sensor mark 12 is position information related to the measurement position at which the measurement value is measured. In the present embodiment, the position P2 of the sensor mark 12 coincides with the measurement position.

[0108] When the processing S17 ends, the position relationship judging section 33 judges whether the positions of the range determination mark 2 and the sensor mark 12 are appropriate (processing S18). For example, the position relationship judging section 33 judges whether the positional relationship of the plurality of range determination marks 2a, 2b is appropriate. For example, as in the processing S14, in a case where each of the range determination marks 2a, 2b is arranged at a position at which the display range RA of the rectangle can be specified, the position relationship judging section 33 judges that the positional relationship of the plurality of range determination marks 2a, 2b is appropriate. In a case where it is judged that the position PI of the range determination mark 2 is inappropriate, the processing proceeds to the processing S13. In a case where it is judged that the position PI of the range determination mark 2 is appropriate, the processing proceeds to the processing S19.

[0109] In a case where it is judged in the processing S18 that the position PI of the range determination mark 2 is appropriate, it is judged whether the measurement position is within the display range RA (processing S19). For example, the position relationship judging section 33 judges that the measurement position is within the display range RA in a case where the position P2 of the sensor mark 12 is within the display range RA. In a case where it is judged that the measurement position is not within the display range RA, the processing proceeds to the processing S20. In a case where it is judged that the measurement position is within the display range RA, the mark detection processing ends, and the processing returns to the processing result.

[0110] When it is determined in the process S19 that the measurement position is not located within the display range RA, the display control section 25 causes the display section 24 to display the captured image, the display range RA, and the sensor position (process S20). In the process S20, the display range determination section 32 determines the display range RA based on the detection result of the range determination marker 2. For example, in the process S20, the display information determination section 52 determines to display the display range RA, the captured image, and the sensor position in the display section 24. For example, in the process S20, the display information determination section 52 calculates the display range RA from the position P1 of the range determination marker 2 acquired in the process S17 and calculates the sensor position from the position P2 of the sensor marker 12 acquired in the process S17. The image production section 35 outputs a composite image in which a result image indicating the display range RA and the sensor position and the captured image are synthesized to the display section 24. As a result, as shown in Fig. 27, the display section 24 displays the display range RA, the sensor position, and the captured image. When the process S20 ends, the marker detection processing ends, and the processing result is returned. Figure 4

[0111] When it is determined in the process S11 that there is no range determination marker 2, it is determined whether there is the sensor marker 12 in the captured image (process S21). For example, as with the process S12, the marker detection section 42 performs image detection of the feature points of the sensor marker 12 from the captured image. When it is determined in the process S21 that there is the sensor marker 12, the processing proceeds to a process S22. When it is determined in the process S21 that there is no sensor marker 12, the processing proceeds to a process S24.

[0112] When it is determined in the process S21 that there is the sensor marker 12, the marker position calculation section 43 acquires the position P2 of the sensor marker 12 (process S22). For example, the marker position calculation section 43 calculates the position P2 of the sensor marker 12 in the captured image and outputs the calculation result to the display information determination section 52 and the storage section 22. In the present embodiment, the position P2 of the sensor marker 12 coincides with the measurement position.

[0113] When the process S22 ends, the display control section 25 causes the display section 24 to display the captured image and the sensor position (process S23). For example, in the process S23, the display information determination section 52 determines to display the captured image and the sensor position in the display section 24. For example, in the process S23, the display information determination section 52 calculates the sensor position from the position P2 of the sensor marker 12 acquired in the process S22. The image production section 35 outputs a composite image in which a result image indicating only the sensor position and the captured image are synthesized to the display section 24. When the process S23 ends, the marker detection processing ends, and the processing result is returned.

[0114] ​In a case where it is determined in the processing S21 that there is no sensor mark 12, the display control section 25 causes the display section 24 to display the captured image (processing S24). For example, in the processing S24, the display information determination section 52 determines to display only the captured image in the display section 24. The image production section 35 does not produce a composite image in the composition section 53, and outputs only the captured image to the display section 24. As a result, the display section 24 displays only the captured image. When the processing S24 ends, the mark detection processing ends, and the processing returns the processing result.

[0115] Next, the display processing of the measurement result in the processing S6 will be described in detail. Figure 13 is a flowchart showing the display processing of the measurement result.

[0116] First, it is determined whether the measurement information acquisition section 34 acquires the measurement value (processing S31). In a case where the measurement information acquisition section 34 acquires the measurement value from the measurement processing section 23, it is determined that the measurement value is acquired. In a case where the measurement information acquisition section 34 does not acquire the measurement value, the processing returns to the processing S31. In a case where the measurement information acquisition section 34 acquires the measurement value, the processing proceeds to the processing S32.

[0117] In a case where it is determined that the measurement value is acquired, the measurement information acquisition section 34 associates the measurement value and the measurement position with each other (processing S32). The measurement information acquisition section 34 acquires the measurement position acquired in the processing S17 from the position information acquisition section 31. The measurement information acquisition section 34 stores the measurement value and the measurement position associated with each other, for example, to the storage section 22. The measurement information acquisition section 34 outputs the measurement value and the measurement position associated with each other to the image production section 35. The measurement information acquisition section 34 can acquire the measurement value and the measurement position associated with each other from the storage section 22.

[0118] Next, the zone determination section 62 determines the zone PA corresponding to the measurement position (processing S33). The zone determination section 62 determines the zone PA corresponding to the measurement position of each measurement value from among the plurality of zones PA based on the position information acquired in the position information acquisition section 31. The plurality of zones PA set in the processing S33 are the zones PA distinguished by the initial setting in the processing S1. The zone setting section 61 can distinguish the display range RA at the time of acquisition of the initial setting in the processing S1, or can distinguish the display range RA before the processing S33 or in the processing S33.

[0119] In the present embodiment, the division determination section 62 determines the division PA corresponding to the measurement position of each measurement value stored in the storage section 22. The division determination section 62 stores the determination result in the storage section 22, for example. The division determination section 62 can output the determination result to the display information determination section 52.

[0120] Next, the display information determination section 52 determines the representative value in the division PA (process S34). The display information determination section 52 acquires the measurement value corresponding to the division PA of the object from the division determination section 62 or the storage section 22. The display information determination section 52 determines the representative value based on the measurement value corresponding to the division PA, for example. The display information determination section 52 calculates and determines the representative value from the two or more measurement values corresponding to one division PA, in a case where the two or more measurement values measured at different times correspond to one division PA.

[0121] Next, the division processing section 51 performs the re-setting process of the division PA (process S35). The division processing section 51 performs the re-setting of the division PA in the division setting section 61 in a case where the re-setting determination section 63 determines to re-set the plurality of divisions PA. The re-setting determination section 63 performs the re-setting of the plurality of divisions PA in a case where a flag indicating that a prescribed condition is satisfied in the process in the electromagnetic environment analysis device 3 or a prescribed input by the user is detected.

[0122] Next, the display information determination section 52 determines the information related to the display of the division PA based on the representative value (process S36). In the present embodiment, the display information determination section 52 determines the color displayed in the division PA based on the representative value. For example, the display information determination section 52 determines the color displayed in each division PA according to the magnitude of the measurement value corresponding to each division PA. For example, the display information determination section 52 determines the color displayed in the division PA as the color corresponding to the magnitude of the representative value corresponding to the division PA. The display information determination section 52 can determine the information other than the color according to the representative value of each division PA in the process S36. The display information determination section 52 stores the information related to the display of each division PA in the storage section 22.

[0123] Next, the display control section 25 causes the display section 24 to display the captured image, the display range RA, the sensor position, and the measurement result (process S37). In the process S37, the display range determination section 32 determines the display range RA based on the detection result of the range determination mark 2. The display control section 25 acquires information necessary for display, for example, from the storage section 22. For example, the display information determination section 52 determines to display the captured image, the display range RA, the sensor position, and the measurement result in the display section 24. For example, in the process S37, the display information determination section 52 calculates the display range RA from the position PI of the range determination mark 2 acquired in the process S17 and calculates the sensor position from the position P2 of the sensor mark 12 acquired in the process S17. The measurement result is expressed by a color determined in the process S36, for example. The image production section 35 outputs a composite image in which a result image expressing the display range RA, the sensor position, and the measurement result is synthesized with the captured image to the display section 24. The measurement result is expressed by displaying information related to the measurement value at a position corresponding to the measurement position of the measurement value. As a result, the display section 24 displays the display range RA, the sensor position, the measurement result, and the captured image. When the process S37 ends, the mark detection process ends, and the process returns to the process result.

[0124] In Figure 5 the measurement positions P4 of two or more measurement values are located in one division PA. In this case, a representative value is also calculated and determined in the process S33 and the process S34, and in the process S36, information related to the display of the division PA is determined based on the representative value. As a result, a color corresponding to the representative value is displayed in each division PA. In other words, in a case where two or more measurement values measured at different times correspond to one division PA, information based on the representative value is also displayed.

[0125] Next, one example of the division re-setting process in the process S35 will be described in detail. Figure 14 is a flowchart showing one example of the division re-setting process.

[0126] First, the re-setting determination section 63 determines whether or not the division PA is re-set (process S41). In the present embodiment, the re-setting determination section 63 determines whether or not a condition such as a ratio of the number of divisions PA in which the measurement result is displayed with respect to the number of divisions of the display range RA exceeds a prescribed value is satisfied. This prescribed value is stored in the storage section 22 together with the division definition table. In a case where the above ratio does not exceed the prescribed value, the division re-setting process ends. In a case where the above ratio exceeds the prescribed value, the process proceeds to the process S42.

[0127] In a case where the above ratio exceeds the prescribed value, the division setting section 61 changes the division definition table referred to (process S42). The division setting section 61 changes the division definition table referred to, for example, from Figure 6(a) the zone definition table 71 shown in FIG. 7 is changed to Figure 6 (b) the zone definition table 72 shown in FIG. 8. The number of display ranges RA distinguished in the zone definition table 72 is larger than the number of display ranges RA distinguished in the zone definition table 71. In the case where the zone definition table 71 corresponds to the first zone definition table, the zone definition table 72 corresponds to the second zone definition table.

[0128] Next, the zone setting section 61 performs re-setting of the plurality of zones PA (process S43). In the process S43, the zone setting section 61 refers to the zone definition table 72 changed in the process S42, and re-sets the plurality of zones PA. Through the process S42 and the process S43, the zone setting section 61 re-sets the plurality of zones PA so as to change the number of zones PA forming the display range RA. Thereby, the zone setting section 61 changes the size of each zone PA. The zone setting section 61 changes the number of the plurality of zones PA forming the display range RA from Figure 7 (a) the plurality of zones PA1 shown in FIG. 7 is re-set to Figure 7 (b) the plurality of zones PA2 shown in FIG. 8. Each of the plurality of zones PA2 has a different size from the zones PA1. In the present embodiment, the size of each zone PA2 is smaller than the size of each zone PA1. As a result, the zones PA classifying the measurement positions P4 of the measurement values are changed. For example, in Figure 7 (a), the plurality of measurement positions P4 located in the same zone PA1 are divided into two zones PA2 different from each other. In the case where the zone PA1 corresponds to the first zone, the zone PA2 corresponds to the second zone.

[0129] Next, the zone determination section 62 re-determines the zones PA corresponding to the measurement positions (process S44).

[0130] For example, the zone determination section 62 determines the zone PA2 corresponding to the measurement position among the plurality of zones PA2 re-set in the process S43. The zone determination section 62 determines the zone PA2 corresponding to the measurement position of each measurement value among the plurality of zones PA2, based on the position information acquired in the position information acquisition section 31. The zone determination section 62 stores the determination result in the storage section 22, for example. The zone determination section 62 can also output the determination result to the display information determination section 52.

[0131] Next, the display information determination unit 52 determines the representative value in zone PA (process S45). When process S45 ends, the zone resetting process ends. For example, the display information determination unit 52 determines the representative values ​​corresponding to each of the multiple zones PA2 reset in process S43. The display information determination unit 52 obtains the measurement value corresponding to the target zone PA2 from the zone determination unit 62 or the storage unit 22. The display information determination unit 52 determines the representative value based on, for example, the measurement value corresponding to zone PA2. The display information determination unit 52 calculates and determines the representative value based on these two or more measurement values ​​when two or more measurement values ​​measured at different times correspond to one zone PA2. In this case, the display information determination unit 52 determines information related to the display of zone PA2 in process S36 after process S45 based on the representative value calculated in process S45.

[0132] The above describes an example of a measurement method using an electromagnetic environment analysis system, but the order of each process is not limited thereto. For example, process S1 can be executed at any time if it occurs after process S2 and before process S6. If process S1 is executed before process S33, it can be performed midway through process S6. When the resetting determination unit 63 determines the resetting of the zone PA based on the user's input operation, process S35 can be executed at any time if it occurs after process S1 and before process S36.

[0133] In process S31, information related to the electromagnetic environment is obtained from sensor 11, and multiple measurement values ​​are obtained based on the obtained information. Sensor 11 detects information related to the electromagnetic environment sequentially. In this embodiment, multiple measurement values ​​related to the electromagnetic environment are obtained in process S31 by repeatedly performing processes S3 to S7. Camera unit 21 captures images of the actual space sequentially, and image acquisition unit 41 acquires the images captured sequentially by camera unit 21. When multiple measurement values ​​are output from measurement processing unit 23 between one cycle of processes S3 to S7, multiple measurement values ​​are obtained in one process S31.

[0134] Next, refer to Figures 15-18 This provides a more detailed example of the reclassification of zones in Electromagnetic Environment Analysis System 1. Figures 15-18 In this context, different colors are represented by different shades.

[0135] exist Figure 15 In this embodiment, by executing processes S31 to S37, information corresponding to the measured values ​​is displayed in each zone PA1 that forms the display range RA. In this embodiment, each zone PA1 is color-coded according to the measured values. Within the display range RA, zones PA1 without shading are areas that are not measured.

[0136] From Figure 15 the state shown in Fig. 10, the measurement is repeatedly performed as the operation section 10 is moved, and thus the number of the zones PA1 in which the information corresponding to the measurement value is displayed increases. In other words, the number of the zones PA1 in which the color is displayed increases. Figure 16

[0137] In addition, from the state shown in Fig. 10, the measurement is repeatedly performed as the operation section 10 is moved, and thus the ratio of the number of the zones PA1 in which the display of the measurement result is performed to the number of divisions of the display range RA exceeds the first prescribed value. By satisfying this condition, it is determined in the process S41 that the re-setting of the zones PA is performed, and the processes S42 to S45, and the processes S36 and S37 are executed. In the process S43, the zone definition table is changed from the zone definition table 71 to the zone definition table 72. As a result, as shown in Fig. 11, the plurality of zones PA formed in the display range RA are re-set from the plurality of zones PA1 to the plurality of zones PA2. The size of each zone PA2 is smaller than the size of each zone PA1. The number of the zones PA formed in the display range RA increases from that shown in Fig. 10. In other words, the display range RA is more finely divided from that shown in Fig. 10. The determination of the representative value in the plurality of zones PA2 is performed by the processes S44 and S45, and the display in the display range RA is updated from the display based on the plurality of zones PA1 to the display based on the plurality of zones PA2 by the processes S36 and S37. Figure 16 Figure 17 Figure 16 Figure 16 In addition, from the state shown in Fig. 10, the measurement is repeatedly performed as the operation section 10 is moved, and thus the ratio of the number of the zones PA1 in which the display of the measurement result is performed to the number of divisions of the display range RA exceeds the first prescribed value. By satisfying this condition, it is determined in the process S41 that the re-setting of the zones PA is performed, and the processes S42 to S45, and the processes S36 and S37 are executed. In the process S43, the zone definition table is changed from the zone definition table 71 to the zone definition table 72. As a result, as shown in Fig. 11, the plurality of zones PA formed in the display range RA are re-set from the plurality of zones PA1 to the plurality of zones PA2. The size of each zone PA2 is smaller than the size of each zone PA1. The number of the zones PA formed in the display range RA increases from that shown in Fig. 10. In other words, the display range RA is more finely divided from that shown in Fig. 10. The determination of the representative value in the plurality of zones PA2 is performed by the processes S44 and S45, and the display in the display range RA is updated from the display based on the plurality of zones PA1 to the display based on the plurality of zones PA2 by the processes S36 and S37.

[0138] Figure 17 In addition, from the state shown in Fig. 10, the measurement is repeatedly performed as the operation section 10 is moved, and thus the ratio of the number of the zones PA1 in which the display of the measurement result is performed to the number of divisions of the display range RA exceeds the first prescribed value. By satisfying this condition, it is determined in the process S41 that the re-setting of the zones PA is performed, and the processes S42 to S45, and the processes S36 and S37 are executed. In the process S43, the zone definition table is changed from the zone definition table 71 to the zone definition table 72. As a result, as shown in Fig. 11, the plurality of zones PA formed in the display range RA are re-set from the plurality of zones PA1 to the plurality of zones PA2. The size of each zone PA2 is smaller than the size of each zone PA1. The number of the zones PA formed in the display range RA increases from that shown in Fig. 10. In other words, the display range RA is more finely divided from that shown in Fig. 10. The determination of the representative value in the plurality of zones PA2 is performed by the processes S44 and S45, and the display in the display range RA is updated from the display based on the plurality of zones PA1 to the display based on the plurality of zones PA2 by the processes S36 and S37. Figure 18 Figure 17 Figure 17 ​​​​​​​The states shown are more finely distinguished. The determination of the representative value in the plurality of divisions PA3 is performed by the process S44 and the process S45, and the display in the display range RA is updated from the display based on the plurality of divisions PA2 to the display based on the plurality of divisions PA3 by the process S36 and the process S37.

[0139] Next, the effects of the electromagnetic environment analysis system of the present embodiment will be described. In the electromagnetic environment analysis system 1, the display range determining section 32 determines the display range RA in which the information related to the measurement values is displayed in the image based on the detection result of at least one range determination marker 2. The division determining section 62 determines the division PA of the plurality of divisions PA that divides the display range RA, which corresponds to the measurement position at which each measurement value is measured, based on the relative positions of the sensor marker 12 and at least one range determination marker 2. The display information determining section 52 determines the information related to the display of the division PA based on the measurement value corresponding to the division PA. In this case, even if the imaging section 21 is not fixed, the information related to the measurement values can be appropriately displayed in the plurality of divisions PA formed by the display range RA. In other words, even if the imaging section 21 moves relatively to the measurement target object 5 or the sensor 11, the display range RA, the plurality of divisions PA, and the measurement position are adjusted in conjunction with this relative movement. For example, in a case where the imaging section 21 is close to the measurement target object 5 and displays the measurement target object 5 at twice the size, the display of the display range RA and the plurality of divisions PA is also adjusted to twice the size. For example, during the measurement, even if the imaging section 21 moves due to hand shaking, the measurement result is appropriately displayed by the display section 24.

[0140] In addition, even if various information such as the angle of view of the captured image is not input in advance, the above-described measurement position can be specified from the captured image. For example, even if the camera that functions as the imaging section 21 is changed to another kind, or the resolution and shape of the captured image are changed, the relative positions of the range determination marker 2 and the sensor marker 12 are not affected. Therefore, in this case, the measurement result is appropriately displayed by the display section 24. As described above, the electromagnetic environment analysis system 1 can easily perform the measurement related to the electromagnetic environment.

[0141] The range determination marker 2 includes a plurality of range determination markers 2a, 2b. From the plurality of range determination markers 2a, 2b, the three-dimensional position of the range determination marker 2 in the actual space can be easily recognized from the captured image. As a result, the three-dimensional positions of the imaging section 21, the sensor 11, and the like in the actual space can be easily recognized from the captured image. For example, as long as the positions of the respective range determination markers 2a, 2b are recognized, even if the postures, i.e., inclinations, of the respective range determination markers 2a, 2b are not recognized, the three-dimensional position of the range determination marker 2 can be recognized. Therefore, the display range RA can be more easily specified.

[0142] The marker detection section 42 detects the sensor marker 12 and the range determination marker 2 from one captured image. In this case, it is easier to specify the display range RA and the measurement position from one image.

[0143] The division determination section 62 calculates coordinates of the measurement position within the display range RA based on the relative position, and determines the division PA corresponding to the measurement value based on the calculated coordinates. In this case, it is easier to specify the measurement position corresponding to the division PA.

[0144] The range determination marker 2 has three-dimensional position information. In this case, by detection of one range determination marker 2, the three-dimensional position of the range determination marker 2 is specified, and thus it is easier to perform the measurement.

[0145] The display section 24 that displays the image created by the image creation section 35 and the imaging section 21 are provided in the same housing. If both the imaging section 21 and the display section 24 are provided in the housing held by the user, it is easier to achieve the measurement related to the electromagnetic environment with a more compact structure.

[0146] The larger the size of the plurality of divisions PA that divide the display range RA, the lower the resolution of the display of the information related to the measurement value. If the resolution of the display is low, information related to the local electromagnetic environment cannot be obtained. In a case where the user performs the measurement while observing the display in a state where the resolution of the display is low, it is also difficult to recognize that the measurement value is obtained at a desired density. In contrast, the smaller the size of the plurality of divisions PA that divide the display range RA, the more time and effort are required to understand the overall situation of the electromagnetic environment, and the amount of data of the measurement result also increases. The appropriate structure of the plurality of divisions PA varies depending on the situation of the measurement. In a case where the display range RA is divided in a certain size, it is difficult to solve the above-described problems in a trade-off relationship. For example, it is necessary to display the measurement result of the rough position at the initial stage of the measurement, and then to display the detailed measurement result for the desired position. In the electromagnetic environment analysis system 1, the re-division determination section 63 determines whether to re-divide the plurality of divisions PA. In a case where the re-division determination section 63 determines to re-divide the plurality of divisions PA, the division setting section 61 re-divides the plurality of divisions PA that form the display range RA into a plurality of divisions PA2 that are smaller than the division PA1. In this case, the display information determination section 52 determines the information related to the display of the division PA2. Thus, in the measurement of the display range RA, it is possible to change the size of the plurality of divisions PA that form the display range RA. Thus, it is possible to change the resolution of the display depending on the situation of the measurement. As a result, it is easy to achieve the desired measurement.

[0147] The size of each division PA2 is smaller than the size of each division PA1. In this case, in the measurement display range RA, the resolution of the display can be set from a low state to a high state. Therefore, the electromagnetic environment analysis system 1 can display the measurement result of the rough position at the initial stage of the measurement, and then display the detailed measurement result for the desired position.

[0148] In a case where the re-setting determination section 63 determines to re-set the plurality of divisions PA, the division determination section 62 determines the division PA2 corresponding to the measurement position of each measurement value among the plurality of divisions PA2 based on the position information, and the display information determination section 52 determines the information related to the display of the division PA2 based on the measurement value corresponding to the division PA2. In this case, the measurement value corresponding to the division PA2 is determined again, and thus more accurate display can be achieved in the division PA2.

[0149] In a case where at least one of the plurality of conditions is satisfied, the re-setting determination section 63 determines to re-set the plurality of divisions PA. In a case where a first condition among the plurality of conditions is satisfied, the size of each division PA2 re-set by the division setting section 61 is smaller than in a case where a second condition among the plurality of conditions is satisfied. In this case, the plurality of divisions PA of the display range RA are re-set to the divisions PA2 having different sizes according to the conditions. Therefore, the desired measurement can be more easily achieved.

[0150] The second condition is a condition satisfied before the first condition is satisfied. In this case, after the size of the plurality of divisions PA of the display range RA formed by satisfying the second condition is re-set, the size of the plurality of divisions PA of the display range RA formed by satisfying the first condition is further reduced. Therefore, the resolution of the display can be changed in multiple stages according to the state of the measurement.

[0151] The storage section 22 stores a plurality of division definition tables 71, 72 defining the structure of each division PA in a case where the display range RA is divided according to a different number of divisions. The division setting section 61 sets the plurality of divisions PA based on the plurality of division definition tables 71, 72. In this case, even without special arithmetic processing, the resolution of the display can be more easily changed by the division definition tables 71, 72.

[0152] The re-setting determination section 63 determines to re-set the plurality of divisions PA according to the input operation of the user. In this case, the re-setting of the plurality of divisions PA can be performed at an arbitrary timing.

[0153] The re-setting determination section 63 determines to re-set the plurality of divisions PA in a case where the number of divisions PA corresponding to the measurement values exceeds a predetermined number. In this case, the re-setting of the plurality of divisions PA can be automatically performed.

[0154] The re-setting determination section 63 determines that the plurality of zones PA is to be re-set in a case where the ratio of the number of zones PA corresponding to the measured values to the number of display ranges RA exceeds a predetermined value. In this case, re-setting of the plurality of zones PA can be automatically performed by a simpler setting.

[0155] The re-setting determination section 63 prohibits re-setting of the plurality of zones PA in a case where the number of times of re-setting of the plurality of zones PA exceeds a predetermined number. In this case, a situation where re-setting is performed more than necessary can be avoided. As a result, detailed measurement of a desired position can be more easily achieved.

[0156] The electromagnetic environment analysis system 1 calculates a representative value from two or more measured values and determines information related to display of a zone PA based on the representative value in a case where the two or more measured values measured at different timings correspond to one zone PA. In this way, the electromagnetic environment analysis system 1 performs two-stage processing of calculation of a representative value and determination of display information based on the representative value, and thus, even in a case where a plurality of measured values exist in one zone PA, an appropriate measurement result can be displayed in each zone PA. For example, if movement of the sensor 11 and measurement performed by the sensor 11 are not synchronized, the measured values and the zones PA do not necessarily become a one-to-one relationship. Considering measurement error, measurement needs to be performed a plurality of times in one zone PA. In this way, regardless of a device structure in which a timing at which measurement is performed and a position at which measurement is performed are not synchronized or a case where measurement is performed a plurality of times in one zone PA, the electromagnetic environment analysis system 1 can display an appropriate measurement result in each zone.

[0157] The measurement information acquisition section 34 acquires additional information corresponding to each measured value. The additional information includes at least one of information related to intensity of an electromagnetic wave, information related to phase of an electromagnetic wave, information related to frequency component of an electromagnetic wave, and information related to a timing at which measurement is performed. The display information determination section 52 calculates a representative value from two or more measured values included in one zone PA based on the additional information. In this case, a more appropriate representative value can be calculated from two or more measured values.

[0158] The plurality of measured values can include a plurality of measured values related to electromagnetic waves of mutually different frequency components. In this case, the display information determination section 52 selects at least one measured value from the two or more measured values based on the frequency component, and calculates a representative value from the selected at least one measured value. As a result, in a case where two or more measured values exist in one zone PA, an appropriate measurement result related to an electromagnetic wave of a desired frequency component can be displayed.

[0159] The plurality of measurement values can also include a plurality of first measurement values related to electromagnetic waves of a first frequency component and a plurality of second measurement values related to electromagnetic waves of a second frequency component. In this case, the display information determination section 52 determines first information related to display of the division PA based on the first measurement values corresponding to the division PA, and determines second information related to display of the division PA based on the second measurement values corresponding to each division PA. The display information determination section calculates a first representative value from two or more first measurement values and determines the first information related to display of the division PA based on the first representative value in a case where the two or more first measurement values measured at different timings correspond to one division PA. As a result, for each electromagnetic wave of a different frequency component, an appropriate measurement result can be displayed in each division PA.

[0160] The display information determination section 52 sets a maximum value, a minimum value, a median value, or a mode value among two or more measurement values included in one division PA as a representative value, and determines information related to display of the division PA. In this case, a desired measurement value can be set as the representative value. For example, a measurement result can be displayed more accurately compared to a case where only measurement values in the same division PA are updated.

[0161] The display information determination section 52 can also calculate an average value of two or more measurement values included in one division PA, set the calculated average value as a representative value, and determine information related to display of the division PA. In this case, a desired measurement value can also be set as the representative value.

[0162] The image creation section 35 also includes a re-setting determination section 63 that determines whether to re-set the plurality of divisions PA forming the display range RA. In a case where the re-setting determination section 63 determines to re-set the plurality of divisions PA, the division setting section 61, the division determination section 62, and the display information determination section 52 perform the following processing. The division setting section 61 re-sets the plurality of divisions PA forming the display range RA from the plurality of divisions PA1 to a plurality of divisions PA2 each having a different size from the divisions PA1. The division determination section 62 determines a division PA2 of the plurality of divisions PA2 corresponding to the measurement position P4 of each measurement value based on the position information obtained by the position information obtaining section 31. The display information determination section 52 can also determine information related to display of the division PA2 based on the measurement values corresponding to the division PA2. The display information determination section calculates a representative value from two or more measurement values and determines information related to display of the division PA2 based on the calculated representative value in a case where the two or more measurement values measured at different timings correspond to one division PA2. In this case, the size of the division PA can be changed according to the measurement situation. Even in a case where the size of the division PA is changed, an appropriate measurement result is displayed in each division PA.

[0163] The above describes the embodiments and modifications of the present application, but the present application is not necessarily limited to the above-described embodiments, and various changes can be made within the scope of the gist thereof.

[0164] In the present embodiment, the position P2 of the sensor mark 12, i.e., the measurement position, is acquired by image recognition of the sensor mark 12. However, the method of acquiring the measurement position is not limited thereto. For example, a motion sensor can be built in at least one of the operation section 10 and the imaging section 21. The motion sensor includes, for example, an acceleration sensor, a gyro sensor, a direction sensor, and the like.

Claims

1. An electromagnetic environment analysis system, wherein, It is an electromagnetic environment analysis system that measures the electromagnetic field generated by the object being measured. have: The measurement and processing unit obtains multiple measurement values ​​related to the electromagnetic environment based on the detection results of sensors located in the actual space and which successively detect information related to the electromagnetic environment. The camera image acquisition unit acquires camera images that are captured sequentially in the actual space; A marker detection unit detects, based on a camera image acquired by the camera image acquisition unit, a first marker disposed on the sensor in the actual space, and at least one second marker disposed at a predetermined position around the object to be measured, having information on its relative position with respect to the position where the camera image is captured in the actual space. The display range determination unit determines, based on the detection result of the at least one second marker, the display range in the image where information related to the measured value is displayed; The position calculation unit calculates the relative position of the first marker and the at least one second marker based on the detection result of the first marker and the detection result of the at least one second marker; and The image processing unit produces an image that displays information related to the measured values ​​at a position corresponding to the measurement location of each measured value. The image production unit includes: The zoning determination unit distinguishes the zoning of the multiple zoning of the display range based on the relative position determination calculated in the position calculation unit, and the zoning corresponding to the measurement position of each measurement value. and The display information determination unit determines information related to the display of the zone based on the measured value corresponding to the zone.

2. The electromagnetic environment analysis system according to claim 1, wherein, The at least one second mark comprises a plurality of second marks respectively configured at predetermined locations.

3. The electromagnetic environment analysis system according to claim 1 or 2, wherein, The marker detection unit detects the first marker and the at least one second marker from a camera image.

4. The electromagnetic environment analysis system according to any one of claims 1 to 3, wherein, The zoning determination unit calculates the coordinates of the measured position within the display range based on the relative position, and determines the zoning corresponding to the measured value based on the calculated coordinates.

5. The electromagnetic environment analysis system according to any one of claims 1 to 4, wherein, It also includes an operation unit that contains the sensor and is operated by the user.

6. The electromagnetic environment analysis system according to any one of claims 1 to 5, wherein, It also includes: a camera unit, which is mounted on a frame held by the user and captures images of the actual space sequentially. The image acquisition unit acquires the image from the camera unit.

7. The electromagnetic environment analysis system according to any one of claims 1 to 6, wherein, It also includes a display unit that displays an image produced by the image production unit.

8. The electromagnetic environment analysis system according to claim 6, wherein, It also includes: a display unit that displays an image created by the image creation unit, The display unit is disposed on the frame.

9. An electromagnetic environment analysis method, wherein, It is an electromagnetic environment analysis method that measures the electromagnetic field generated by the object being measured. have: Based on the detection results of sensors located in actual space and which successively detect information related to the electromagnetic environment, multiple measured values ​​related to the electromagnetic environment are obtained. Acquire video images that are captured sequentially in the actual space; Based on the acquired camera image, a first marker disposed on the sensor in the actual space and at least one second marker disposed at a predetermined position around the object to be measured, having information on the relative position of the second marker with respect to the position of the camera image captured in the actual space. Based on the detection results of the at least one second marker, determine the display range in the image where information related to the measured value is displayed; Based on the detection results of the first marker and the detection results of the at least one second marker, the relative positions of the first marker and the at least one second marker are calculated; Create an image that displays information related to the measured values ​​at a position corresponding to the measurement location of each measured value. In the image creation process, the relative position of the operation determines the divisions in the display range that correspond to the measurement positions of each measurement value, and the information related to the display of the division is determined based on the measurement values ​​corresponding to the divisions.

10. A storage medium, wherein, It is a computer-readable storage medium containing programs used in electromagnetic environment analysis methods for measuring the electromagnetic field generated by the object being measured. The program causes the computer to execute: Based on the detection results of sensors located in actual space and successively detecting information related to the electromagnetic environment, multiple measured values ​​related to the electromagnetic environment are obtained through processing. Processing to obtain video images captured sequentially in the actual space; Based on the acquired camera image, the process involves detecting a first marker disposed on the sensor in the actual space, and at least one second marker having information about its relative position with respect to the position where the camera image is captured in the actual space and disposed at a predetermined position around the object to be measured; Based on the detection results of the at least one second marker, the process of determining the display range of information in the image related to the measured value to be displayed; Based on the detection results of the first marker and the detection results of the at least one second marker, the relative positions of the first marker and the at least one second marker are calculated. The process of creating an image that displays information related to the measured values ​​at a position corresponding to the measurement location of each measured value. In the image creation process, the relative position of the operation determines the divisions in the display range that correspond to the measurement positions of each measurement value, and the display-related information of the division is determined based on the measurement values ​​corresponding to the divisions.

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