JP2019158479A - Wave source information presentation system, wave source information presentation method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To present information on a wave source. A wave source information presentation system has a plurality of receiving elements that receive waves propagating from a wave source in a three-dimensional space, and the position of the wave source in the three-dimensional space and the position of the wave source in the three-dimensional space based on the reception results of the plurality of receiving elements. It includes an estimation unit that estimates the posture, and a presentation unit that presents an image based on the position and posture of the wave source estimated by the estimation unit. [Selection diagram] Fig. 1

Description

  One embodiment of the present invention relates to a wave source information presentation system, a wave source information presentation method, and a program.

  2. Description of the Related Art Conventionally, a technique for measuring radio wave (electromagnetic wave) noise radiated from various electronic devices is known in the field of environmental electromagnetic engineering (EMC: Electromagnetic Compatibility). It is important to know the spatial distribution of the radio noise around the device in order to identify the part from which the radio noise is actually generated. Also, when evaluating the directivity of an antenna incorporated in a communication device, it is necessary to measure the spatial distribution of the radiated radio wave intensity.

  Patent Document 1 describes a radio wave intensity measuring device for measuring radio wave intensity. The radio wave intensity measuring apparatus measures the intensity of radio waves in a plurality of measurement areas by a radio wave absorber having a plane having a plurality of measurement areas. The radio wave intensity measuring device generates a radio wave intensity distribution image that is an image visualized corresponding to the position of the measurement area based on the radio wave intensity in a plurality of measurement areas, and displays the generated radio wave intensity distribution image. it can. Furthermore, the radio wave intensity measuring device can display the radio wave intensity distribution image generated every predetermined time while updating it.

International Publication No. 2010/013408

  However, although the above-described radio wave intensity measuring device can visualize the radio wave intensity measured in the radio wave absorber, it cannot present information regarding the wave source of the radio wave.

  The present invention has been made based on the above problems, and an object of the present invention is to provide a wave source information presentation system, a wave source information presentation method, and a program capable of presenting information related to a wave source.

  In order to solve the above problems, a wave source information presentation system according to an aspect of the present invention is based on a plurality of receiving elements that receive a wave propagated from a wave source in a three-dimensional space, and reception results of the plurality of receiving elements. An estimation unit that estimates the position and orientation of the wave source in the three-dimensional space; and a presentation unit that presents an image based on the position and orientation of the wave source estimated by the estimation unit.

  The wave source information presentation system of one aspect of the present invention is the above-described wave source information presentation system, wherein the estimation unit estimates a parameter related to radio waves at positions around the wave source based on reception results of the plurality of receiving elements. Then, the presenting unit presents an image based on the parameter relating to the radio wave estimated by the estimating unit.

  A wave source information presentation system according to an aspect of the present invention is the above-described wave source information presentation system, wherein the presentation unit includes a head mounted display that displays an image, and is based on a viewpoint of a user wearing the head mounted display. The image based on the position and orientation of the wave source is superimposed on the image in the three-dimensional space that the user is viewing.

  The wave source information presentation system according to one aspect of the present invention is the above-described wave source information presentation system, and the image based on the position and orientation of the wave source is an image based on parameters related to radio waves.

  The wave source information presentation system according to one aspect of the present invention is the above-described wave source information presentation system, wherein the estimation unit cannot estimate the position and orientation of the wave source among the parameters related to the radio wave, Only an image based on the propagation direction (arrival direction) of is presented.

  The wave source information presentation method of one aspect of the present invention receives a wave propagated from a wave source by a plurality of receiving elements from a wave source, and based on reception results of the plurality of receiving elements, the wave source information in the three-dimensional space. The position and orientation are estimated, and an image based on the estimated position and orientation of the wave source is presented.

  The program according to one aspect of the present invention, when receiving a wave propagating in a three-dimensional space from a wave source by a plurality of receiving elements to a computer, based on reception results of the plurality of receiving elements, The position and orientation of the wave source are estimated, and an image based on the estimated position and orientation of the wave source is presented.

  According to one embodiment of the present invention, information about a wave source can be presented.

It is a figure which shows the structure of the wave source information presentation system 1 of 1st Embodiment. 1 is a perspective view showing an example of a radio wave sensor 100. FIG. 1 is a cross-sectional view of a radio wave sensor 100. FIG. It is a figure which shows the cross section and equivalent circuit of the radio wave sensor. It is a figure for demonstrating the process which estimates the position of the wave source RW. 4 is an example of a display image 510 displayed on the head mounted display 500. It is a figure for demonstrating test | inspecting the electromagnetic wave which leaks from the electronic device for vehicle control mounted in the vehicle. It is a figure which shows an example of the display image 510. FIG. It is a flowchart which shows an example of the flow of the process which presents wave source information. It is a block diagram which shows one structural example of 400 A of personal computers for control in 2nd Embodiment. It is a figure for demonstrating the process which estimates an electromagnetic wave. FIG. 10 is a diagram for explaining a range to be displayed on the head mounted display 500. FIG. 10 is a diagram for explaining a range to be displayed on the head mounted display 500. It is a flowchart which shows an example of the flow of a process which presents the information based on the parameter of an electromagnetic wave.

  A wave source information presentation system, a wave source information presentation method, and a program to which the present invention is applied will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram illustrating a configuration of a wave source information presentation system 1 according to the first embodiment.
The wave source information presentation system 1 is used, for example, when a user wants to acquire information about a wave source existing in a three-dimensional space. When the user wants to acquire information about the wave source, the user puts on the head mounted display 500 and causes the radio wave sensor 100 to detect the radio wave propagating in the three-dimensional space. Thus, the wave source information presentation system 1 estimates information about the wave source based on the radio wave detected by the radio wave sensor 100 and causes the head mounted display 500 to draw the information about the wave source. Thereby, the wave source information presentation system 1 can display what kind of wave source exists in the three-dimensional space.

  In the present embodiment, the wave source information presentation system 1 is described as estimating information about the wave source RW that emits radio waves. However, the present invention is not limited to this, and a three-dimensional space such as sound and ultrasonic waves is used. Any wave that propagates is applicable. Further, in the present embodiment, it will be described that information about radio waves is displayed, but the present invention is not limited to this, and information about radio waves may be presented to the user by sound or vibration.

  As shown in FIG. 1, the wave source information presentation system 1 includes, for example, a radio wave sensor 100, an RF switch 200, a software defined radio 300, a control personal computer 400, and a head mounted display (HMD) 500. The wave source information presentation system 1 receives a radio wave as a wave radiated from the wave source RW by the radio wave sensor 100. In the present embodiment, the wave source RW is a dipole antenna, but is not limited to this, and any wave source may be used as long as it radiates waves.

  FIG. 2 is a perspective view showing an example of the radio wave sensor 100. The radio wave sensor 100 includes, for example, a dielectric substrate 102, a copper patch 104, a via 106, and a copper plate 108. The shape of the dielectric substrate 102 is, for example, a sheet (thin plate) shape. In the radio wave sensor 100, the substrate is a dielectric, but is not limited thereto, and may be another type of substrate. The size of the dielectric substrate 102 is desirably a size that can be easily carried by a measurer.

A plurality of copper patches 104 are formed on the surface 100 </ b> A of the dielectric substrate 102. The plurality of copper patches 104 are arranged in a matrix. Each copper patch 104 corresponds to each cell in the radio wave sensor 100.
Each of the copper patches 104 is a square electrode formed of a copper plate. The shape of the copper patch 104 is not limited to a square, and may be another shape such as a triangle or a hexagon. The copper patch 104 is not limited to a copper patch, and may be another metal patch.

  Each of the plurality of copper patches 104 is arranged at an interval sufficiently shorter than the wavelength of the radio wave irradiated from the wave source RW. The length (size) of each of the copper patches 104 is sufficiently shorter than the wavelength of the radio wave radiated from the wave source RW.

  The frequency of the radio wave emitted from the wave source RW is assumed to be a frequency between 800 MHz and 2.4 GHz, for example. The wavelength of the radio wave having a frequency of 800 MHz is 37.5 cm. The wavelength of the radio wave having a frequency of 2.4 GHz is 12.5 cm. In this case, for example, it is assumed that the interval between the copper patches 104 is 1 millimeter. Further, it is assumed that the vertical and horizontal lengths of the copper patch 104 are 20 millimeters, for example.

  A copper plate 108 is formed on the back surface 100 </ b> B of the radio wave sensor 100. The copper plate 108 functions as a ground terminal. The back surface 100B of the radio wave sensor 100 is not limited to a copper plate, and may be another metal plate.

  FIG. 3 is a cross-sectional view of the radio wave sensor 100. A resistor (not shown) that absorbs radio waves radiated from the wave source RW is provided between the copper patches 104 on the surface 100A of the radio wave sensor 100. Vias 106 are formed in the dielectric substrate 102 corresponding to the copper patches 104. The via 106 is copper penetrating from the front surface 100 </ b> A to the back surface 100 </ b> B of the radio wave sensor 100. As a result, the via 106 electrically connects each copper patch 104 and the copper plate 108.

  FIG. 4 is a diagram showing a cross section and an equivalent circuit of the radio wave sensor 100. When radio waves are incident on the radio wave sensor 100, as shown in FIG. 4A, electric charges are generated between the copper patches 104, so that the copper patches 104 function as capacitors and the dielectric substrate sandwiched between the vias 106. 102 functions as an inductor. Thereby, the radio wave sensor 100 functions equivalently as an LC parallel circuit as shown in FIG. That is, the radio wave sensor 100 functions as a sheet having surface impedance as an LC parallel circuit with respect to radio waves incident on the surface 100A. That is, the radio wave sensor 100 has the property of changing the reflection phase of the incident radio wave depending on the frequency or blocking (band gap) the surface wave propagation in a specific frequency band.

  The RF switch 200 is installed on the back surface 100B of the radio wave sensor 100 as shown in FIG. The RF switch 200 includes, for example, a plurality of measurement circuits (not shown). Each measurement circuit is electrically connected to both ends of a resistor connected to each of the plurality of copper patches 104. Each measurement circuit measures the voltage generated at the corresponding resistor. The resistor that connects between the copper patches 104 arranged on the surface 100 </ b> A of the radio wave sensor 100 consumes electric power (energy) of radio waves absorbed in the connected copper patch 104. At this time, the voltage generated in the resistor connecting the copper patches 104 is proportional to the electric field component of the incident radio wave. Therefore, if the measurement circuit measures the amplitude and phase of the voltage generated in the corresponding resistor, the amplitude and phase of the electric field component of the radio wave incident on the corresponding copper patch 104 can be measured. That is, the strength and phase of the electric field component of the radio wave incident on the copper patch 104 corresponding to the corresponding resistance can be measured by each measurement circuit. A combination of the copper patch 104 and the measurement circuit realizes a plurality of receiving elements (two-dimensional sensor arrays) that receive waves propagated from a wave source in a three-dimensional space.

  The RF switch 200 sequentially selects a voltage signal including amplitude and phase information of the radio wave (electric field component) measured by the measurement circuit and transmits the voltage signal to the software defined radio 300.

  The software defined radio 300 receives the voltage signal transmitted from the RF switch 200. The software defined radio 300 transmits voltage signal information to the control personal computer 400. The personal computer 400 calculates the amplitude of the voltage signal generated in the resistance in the radio wave sensor 100. At the same time, the difference between the phase of the voltage signal generated in the resistance at the reference point provided in the radio wave sensor 100 and the phase of the voltage signal generated in the resistance at a point away from the reference point is calculated. Further, the amplitude of the voltage signal is calibrated and converted to the amplitude of the radio wave (electric field strength) incident on the surface of the radio wave sensor 100.

  The control personal computer 400 includes, for example, a signal analysis device 410 and a transmission device 420. The signal analysis device 410 includes a radio wave information analysis unit 412 and a wave source estimation unit 414. The radio wave information analysis unit 412 and the wave source estimation unit 414 are realized by one or more processors such as a CPU (Central Processing Unit) executing a radio wave analysis / radio wave estimation program stored in one or more program memories, for example. Is done.

  The radio wave information analysis unit 412 calculates, for each cell, the phase difference between the amplitude of the radio wave (electric field component) incident on the radio wave sensor 100 and the phase of the radio wave (electric field component) incident on the reference point provided in the radio wave sensor 100. Thereby, the radio wave information analysis unit 412 measures the two-dimensional distribution of the amplitude and phase difference of the radio wave (electric field component) incident on the surface of the radio wave sensor 100.

  FIG. 5 is a diagram for explaining processing for estimating the position of the wave source RW. The wave source estimation unit 414 estimates the position of the wave source RW based on the distribution of the radio wave (electric field component) amplitude and the distribution of the radio wave (electric field component) phase difference measured by the radio wave information analysis unit 412. The wave source estimation unit 414 uses, for example, a MUSIC (Multiple Signal Classification) method in order to estimate the position of the wave source RW. The MUSIC method is an algorithm used for estimating the arrival direction of a radio wave, the position of a wave source, and the like. In the MUSIC method, electric field components of radio waves received at a plurality of measurement points (radio wave detection areas) are used as mode vectors. The wave source estimation unit 414 calculates a mode vector using a received electric field obtained theoretically based on the absorption coefficient of the radio wave incident on the radio wave sensor 100. Thereby, the wave source estimation unit 414 can estimate the three-dimensional position (x, y, z) of the wave source RW and the attitude (θ, φ) of the wave source RW. θ and φ are angles indicating the degree of inclination of the wave source RW with respect to the reference axis in the three-dimensional space.

  The wave source estimation unit 414 uses the MUSIC method to search the position and orientation of the wave source RW that can generate the distribution of the measured radio wave (electric field component) amplitude and phase on the surface of the radio wave sensor 100, The position and orientation of the reliable wave source RW are obtained as estimated values. A plurality of wave sources RW may exist. Here, the MUSIC method is used assuming that the wave source RW is a dipole antenna, but an appropriate wave source model may be assumed for wave sources other than the dipole antenna.

  The transmission device 420 transmits information representing the position and orientation of the wave source RW to the head mounted display 500. The information representing the position and orientation of the wave source RW is, for example, an image representing the position and orientation of the wave source RW.

  The head mounted display 500 includes a display device and a communication device. The head mounted display 500 displays an image in a three-dimensional space where a user exists. The head mounted display 500 updates the image in the three-dimensional space based on the viewpoint position. The viewpoint position acquisition method is not limited as long as it is an existing technique.

  When the head mounted display 500 receives information representing the position and orientation of the wave source RW from the transmission device 420, the head mounted display 500 draws an image to be displayed on the display device based on the information representing the position and orientation of the wave source RW. Accordingly, the head mounted display 500 displays an image representing the position and orientation of the wave source RW superimposed on the image in the three-dimensional space.

  The head mounted display 500 stores, for example, the correspondence between the position in the three-dimensional space and the position in the image to be displayed. The head mounted display 500 calculates which position of the displayed image of the three-dimensional space the position and orientation of the wave source RW acquired from the control personal computer 400 correspond to. As a result, the head mounted display 500 superimposes and displays an image based on the position and orientation of the wave source RW on the image in the three-dimensional space.

  FIG. 6 is an example of a display image 510 displayed on the head mounted display 500. The display image 510 includes a wave source image 512 and a three-dimensional space image 514 at a position in the image corresponding to the position where the wave source RW is viewed from the viewpoint. Note that the three-dimensional space image 514 is not necessarily displayed by the head mounted display 500. Further, the head mounted display 500 may display the wave source image 512 in a color different from the actual wave source RW (for example, an emphasized color such as red) in order to emphasize that radio waves are radiated from the wave source RW.

  FIG. 7 is a diagram for explaining inspection of radio waves leaking from the vehicle control electronic device mounted on the vehicle. When examining radio waves leaking from the vehicle M, for example, the user holds the radio wave sensor 100, approaches the vehicle M, and causes the head mounted display 500 to display the wave source image 512 including the image of the vehicle M. When the user's field of view moves to a position where the vehicle control electronic device 600 is built in the vehicle M, the wave source information presentation system 1 uses, for example, an abnormal radio wave as a radio wave leaking from the vehicle control electronic device 600. In some cases, a display image 510 as shown in FIG. 8 is displayed.

  In addition to an image (not shown) in a three-dimensional space, the display image 510 includes an image 520 that represents the position and orientation of the vehicle control electronic device 600 built in the vehicle M, an alert image 522 that recognizes a warning, and a message And an image 524.

  The image based on the position and orientation of the wave source RW may be generated by the control personal computer 400, but is not limited thereto, and may be generated by the head mounted display 500.

FIG. 9 is a flowchart illustrating an example of a flow of processing for presenting wave source information.
First, the position of the radio wave sensor 100 and the viewpoint position are determined (step S100). The viewpoint position may be detected as long as the viewpoint is known to have moved. Next, the radio wave sensor 100, the RF switch 200, and the software defined radio 300 measure a voltage signal including radio wave amplitude and phase information (step S102). Next, the control personal computer 400 calculates the radio wave information incident on the surface 100A of the radio wave sensor 100 based on the measured voltage signal (step S104). The radio wave information includes radio wave parameters such as frequency and wavelength in addition to the amplitude and phase difference distribution of the radio wave (electric field component). Next, the control personal computer 400 estimates the position and orientation of the wave source based on the radio wave information (step S106). Next, the head mounted display 500 displays an image based on the position and orientation of the wave source RW included in the field of view based on the position and orientation of the wave source (step S108).
The wave source information presentation system 1 can display an image based on the position and orientation of the wave source even when the positions of the radio wave sensor 100 and the head mounted display 500 are moved by repeating the processing from step S100 to step S108.

  According to the wave source information presentation system 1 of the first embodiment described above, a plurality of receiving elements (100) that receive a wave propagated through a three-dimensional space from the wave source RW and reception results of the plurality of receiving elements (100). An estimation unit (400) for estimating the position and orientation of the wave source RW in a three-dimensional space, and a presentation unit (500) for presenting an image based on the position and orientation of the wave source RW estimated by the estimation unit (400) Can be realized. Thereby, according to the wave source information presentation system 1, the information regarding the wave source RW can be presented. The information regarding the wave source RW is, for example, the wave source image 512 shown in FIG. 6 described above, the image 520 representing the position and orientation shown in FIG. 8, the alert image 522 for recognizing the warning, and the message image 524.

(Second Embodiment)
Hereinafter, the second embodiment will be described. FIG. 10 is a block diagram illustrating a configuration example of the control personal computer 400A in the second embodiment. The control personal computer 400A is different from the control personal computer 400 of the first embodiment in that a radio wave estimation unit 416 is provided instead of the wave source estimation unit 414.

  FIG. 11 is a diagram for explaining processing for estimating radio waves. For example, the radio wave estimation unit 416 sets a plurality of radio wave estimation positions at predetermined intervals in the vertical direction and horizontal direction of the three-dimensional space within a predetermined range from the radio wave sensor 100. The radio wave estimation unit 416 estimates the position and orientation of the wave source using, for example, the MUSIC method. Next, the radio wave estimation unit 416 estimates, for each radio wave estimation position in the three-dimensional space, a radio wave that should be radiated and propagated from the wave source RW to the periphery based on theoretical calculation or electromagnetic field simulation calculation. The radio wave estimation unit 416 calculates, as radio wave parameters for each radio wave estimation position, the amplitude and phase of the electric field component, the direction of the electric field vector, the amplitude and phase of the magnetic field component, the direction of the magnetic field vector, the propagation direction of the radio wave, and the like.

  FIG. 12 is a diagram for explaining a range to be displayed on the head mounted display 500. When the user's field of view is in a range including the wave source RW, the control personal computer 400A displays an image based on the radio wave parameter at the radio wave estimation position near the wave source RW.

  FIG. 13 is an example of an image displayed on the head mounted display 500. The head mounted display 500 superimposes and displays a wave source image 710, radio wave images 720-1, 720-2, and 720-3, and an image 730 in a three-dimensional space. The wave source image 710 may be a part of the image 730 in the three-dimensional space. For example, the radio wave image 720 is displayed in an emphasized color as the amplitude of the radio wave (electric field component) increases. For example, the color of the radio wave image 720-1 at the radio wave estimation position closest to the wave source is red, and the color of the radio wave image 720-2 at the radio wave estimation position next to the wave source is light blue, and the radio wave estimation farthest from the wave source is The color of the radio wave image 720-3 at the position is dark blue. The radio wave image 720 is an image in which a triangular pyramid is displayed in a three-dimensional manner, and is drawn so that the sharpened portion three-dimensionally represents the direction of the radio wave (vector indicating the direction of the electric field component). The radio wave image 720 is not limited to the amplitude of the electric field component, and the color may be changed based on the phase of the electric field component, the amplitude and phase of the magnetic field component, the frequency (wavelength), and the like, and indicates the direction of the magnetic field vector. A triangular pyramid may be displayed, or a triangular pyramid indicating the propagation direction of radio waves may be displayed. The radio wave image may be a still image or a moving image showing changes in radio wave parameters.

FIG. 14 is a flowchart illustrating an example of a flow of processing for presenting information based on radio wave parameters.
First, the position of the radio wave sensor 100 and the viewpoint position are determined (step S200). Next, the radio wave sensor 100, the RF switch 200, and the software defined radio 300 measure voltage signals including amplitude and phase information of radio waves (electric field components) (step S202). Next, the control personal computer 400 calculates the radio wave information incident on the surface 100A of the radio wave sensor 100 based on the measured voltage signal (step S204). The radio wave information includes radio wave parameters such as frequency and wavelength in addition to the amplitude and phase difference distribution of the radio wave (electric field component). Next, the control personal computer 400A estimates radio wave parameters for each radio wave estimation position based on the radio wave information (step S206). Next, the head mounted display 500 displays an image based on the estimated radio wave parameter based on the estimated radio wave parameter (step S208).
The wave source information presentation system 1 can display the image based on the parameter of the radio wave even when the positions of the radio wave sensor 100 and the head mounted display 500 are moved by repeating the processing from step S200 to step S208.

  As described above, according to the second embodiment, the estimation unit (416) estimates the parameters related to the radio waves at positions around the wave source RW based on the reception results of the plurality of receiving elements (100). The presenting unit (500) presents an image based on the parameter relating to the radio wave estimated by the estimating unit. Thereby, according to 2nd Embodiment, the parameter of the electromagnetic wave for every estimated radio wave position radiated | emitted from the said wave source can be shown as information regarding a wave source.

(Other embodiments)
(1) In the first embodiment, an image based on the position and orientation of the wave source is displayed, and in the second embodiment, an image based on the radio wave parameter for each estimated radio wave position is displayed. You may display both the image based on and the image based on the parameter of the electromagnetic wave for every electromagnetic wave estimated position.
(2) The application of the present invention is, for example, to inspect the vehicle control electronic device 600, but is not limited to this, and is radiated from an antenna in education such as electromagnetics and radio wave engineering. It is also possible to display and understand the radio wave status.
(3) The radio wave sensor 100 has been described as having a flat surface. However, the radio wave sensor 100 is not limited thereto, and may have a shape other than a flat surface as long as the distribution of incident radio waves can be detected.
(4) The radio wave estimation unit 416 may estimate only the propagation direction (arrival direction) of radio waves when the position and orientation of the wave source cannot be estimated. The case where the position and orientation of the wave source cannot be estimated is, for example, a case where the distribution of radio waves on the surface of the radio wave sensor 100 is uniform and a plane wave arriving from a distance is received.
(5) The control personal computer 400 estimates a current path (current distribution) as a wave source that emits radio waves, and based on the current value and current direction, how and where the radio waves radiate or leak from the device. You may estimate what is being done. The control personal computer 400 may cause the head mounted display 500 to display the estimated current path (current distribution) and / or information indicating the state of radio wave radiation from the device.
(6) The control personal computer 400 estimates the frequency of the radio wave as a radio wave parameter at the radio wave estimation position, estimates what radio wave is propagating in the three-dimensional space based on the frequency of the radio wave, The estimation result may be displayed on the head mounted display 500. For example, the control personal computer 400 can cause the head mounted display 500 to display information indicating which of the frequencies assigned to the mobile carrier the frequency of the radio wave assigned to which mobile carrier is high.
(7) The control personal computer 400 superimposes an image based on the position and orientation of the wave source and the radio wave parameter for each radio wave estimation position on the image in the three-dimensional space. Alternatively, an image based on the position and orientation of the wave source at the place where the photograph was taken and the radio wave parameter for each radio wave estimation position may be superimposed.

  As described above, the embodiments and modifications as one aspect of the present invention have been described in detail with reference to the drawings. However, specific configurations are not limited to the embodiments and modifications, and depart from the gist of the present invention. This includes design changes that do not occur. In addition, one aspect of the present invention can be modified in various ways within the scope of the claims, and the technical aspects of the present invention also relate to embodiments obtained by appropriately combining technical means disclosed in different embodiments. Included in the range. Moreover, it is the element described in said each embodiment and modification, and the structure which substituted the element which has the same effect is also contained.

DESCRIPTION OF SYMBOLS 1 ... Wave source information presentation system, 100 ... Radio wave sensor, 104 ... Copper patch, 106 ... Via, 200 ... RF switch, 300 ... Software defined radio, 400, 400A ... Control personal computer, 410 ... Signal analysis device, 412 ... Radio wave information Analysis unit 414 Wave source estimation unit 416 Radio wave estimation unit 420 Transmission device 500 Head display (HMD) 510 Display image 512 Wave source image 522 Alert image 524 Message image 600 ... Electronic device for vehicle control, 710 ... Wave source image, 720 ... Radio wave image, 720-1 ... Radio wave image, 720-2 ... Radio wave image, 720-3 ... Radio wave image, 730 ... Image

Claims (7)

A plurality of receiving elements for receiving a wave propagating in a three-dimensional space from a wave source;
An estimation unit that estimates the position and orientation of the wave source in the three-dimensional space based on reception results of the plurality of reception elements;
A presentation unit for presenting an image based on the position and orientation of the wave source estimated by the estimation unit;
A wave source information presentation system. The estimation unit estimates a parameter related to radio waves at positions around the wave source based on reception results of the plurality of receiving elements,
The presenting unit presents an image based on a parameter related to the radio wave estimated by the estimating unit;
The wave source information presentation system according to claim 1. The presentation unit includes a head mounted display for displaying an image,
Based on the viewpoint of the user wearing the head-mounted display, an image based on the position and orientation of the wave source is superimposed on the image in the three-dimensional space that the user is viewing.
The wave source information presentation system according to claim 1. The image based on the position and orientation of the wave source is an image based on parameters related to radio waves.
The wave source information presentation system according to claim 3. The estimation unit presents only an image based on the arrival direction or propagation direction of the radio wave among the radio wave parameters when the position and orientation of the wave source cannot be estimated among the parameters related to the radio wave,
The wave source information presentation system according to claim 4. Receives the wave propagating in the three-dimensional space from the wave source with multiple receiving elements,
Based on the reception results of the plurality of receiving elements, estimate the position and orientation of the wave source in the three-dimensional space,
Present an image based on the estimated position and orientation of the wave source.
Wave source information presentation method. On the computer,
When receiving a wave propagated through a three-dimensional space from a wave source by a plurality of receiving elements, based on reception results of the plurality of receiving elements, the position and orientation of the wave source in the three-dimensional space are estimated,
Present an image based on the estimated position and orientation of the wave source.
program.

Images