Information processing device

Abstract

To reduce a workload in a prospect survey.SOLUTION: An accept unit 112 accepts a target object distance Dt which is the distance from a determination target object Ot to a first antenna A1 among a plurality of objects O included in a captured image obtained by imaging a direction from the first antenna A1 to a second antenna A2. Based on the target object distance Dt, a determination unit 113 determines whether the determination target object Ot servers as an obstacle to wireless communication between the first antenna A1 and the second antenna A2. When the determination result of the determination unit 113 is negative and an object O that is closer to the first antenna A1 next to the determination target object Ot exists inside a Fresnel circle Sf, the accept unit 112 accepts a new determination target object distance Dt while setting the object O as a new determination target object Ot. The accept unit 112 repeats the acceptance and the determination unit 113 repeats the determination until there is no more object O located inside the Fresnel circle Sf and between the first antenna A1 and the second antenna A2.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an information processing device. [Background technology]

[0002] In order to evaluate the communication quality between antennas that make up a wireless communication network, line-of-sight surveys are conducted to determine whether there are any obstacles between the antennas. In line-of-sight surveys, the distance between the antennas and any objects located between them is measured. In addition, the Fresnel radius (radius of the Fresnel area) at the object's location is calculated based on the distance between the object and the antenna. If the object is located within the Fresnel area, it is determined that the object will obstruct communication between the antennas. Conventional line-of-sight surveys require workers to climb to high places carrying surveying equipment such as transits, which places a heavy burden on the workers.

[0003] Furthermore, Patent Document 1 below discloses a line quality determination device that determines the communication quality between a first antenna and a second antenna. The line quality determination device aims a scope from the first antenna to the second antenna to capture an image, and if an obstacle is present within the field of view of the scope, measures the distance from the first antenna to the obstacle. Based on the distance measurement result and the distance between the first antenna and the second antenna, the line quality determination device displays an image in which a Fresnel zone is superimposed on the captured image on a display unit, and recognizes the obstacle in the image to determine whether or not the obstacle is present within the Fresnel zone. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-312021 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the line quality determination device disclosed in Patent Document 1, when multiple obstacles exist within the field of view of the scope, the above determination must be performed for all of the obstacles, which results in a heavy processing load on the line quality determination device and long processing times. [Means for solving the problem]

[0006] In order to solve the above problems, an information processing device according to a preferred embodiment of the present invention includes an acquisition unit that acquires an image captured in a direction from a first antenna to a second antenna; a reception unit that receives the distance from an object to be determined to the first antenna among multiple objects included in the captured image; a determination unit that determines whether the object to be determined will interfere with wireless communication between the first antenna and the second antenna based on the distance received by the reception unit; a generation unit that generates a first image indicating a Fresnel circle that is the outer edge of a Fresnel region corresponding to the distance received by the reception unit; and a display control unit that displays a display image including the first image and the captured image on a display device.When the determination result of the determination unit is negative and an object that is next closest to the first antenna after the object to be determined exists inside the Fresnel circle, the reception unit regards the object as a new object to be determined and receives the distance of the new object to be determined.The reception unit repeats the acceptance and the determination unit repeats the judgment until there are no more objects located inside the Fresnel circle and between the first antenna and the second antenna. [Effects of the Invention]

[0007] The present invention can reduce the processing load on an information processing device used in a forecast survey and shorten the processing time. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a diagram illustrating a wireless station B in a wireless communication network. [Figure 2] 1 is a block diagram showing the configuration of a determination system 1. FIG. [Figure 3] FIG. 2 is a block diagram showing the configuration of an information processing device 10A. [Figure 4] FIG. 2 is a block diagram showing the configuration of drone 20A. [Figure 5] 10 is a flowchart showing the procedure of processing executed by the processing device 110. [Figure 6] FIG. 2 is a diagram showing an example of a display on a display device 150 of an information processing device 10A. [Figure 7A] FIG. 2 is an enlarged view of a captured image Pc. [Figure 7B] FIG. 2 is an enlarged view of a captured image Pc. [Figure 7C] FIG. 2 is an enlarged view of a captured image Pc. [Figure 7D] FIG. 2 is an enlarged view of a captured image Pc. [Figure 7E] FIG. 2 is an enlarged view of a captured image Pc. [Figure 7F] FIG. 2 is an enlarged view of a captured image Pc. [Figure 8] FIG. 2 is a diagram showing a typical fixed angle circle Sd. [Figure 9] FIG. 2 is a diagram schematically illustrating the relationship between a constant angle circle Sd and a Fresnel region Fr. [Figure 10] 10 is a graph showing the relationship between the Fresnel radius rf and the radius rd of the constant angle circle Sd. [Figure 11] 1 is a diagram schematically illustrating the relationship between the Fresnel circle Sf and the viewing angle θf. [Figure 12] FIG. 2 is a block diagram showing the configuration of an information processing device 10B. [Figure 13] FIG. 2 is a block diagram showing the configuration of drone 20B. [Figure 14] 10 is a flowchart showing the procedure of processing executed by the processing device 110. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the dimensions and scale of each part in the drawings may differ from those in reality. The embodiments described below are preferred specific examples of the present invention. Therefore, various technically preferable limitations are applied to the following embodiments. However, the scope of the present invention is not limited to these forms unless otherwise specified in the following description to the effect that the present invention is limited.

[0010] 1. First embodiment FIG. 1 is a diagram schematically illustrating a wireless station B in a wireless communication network. In this embodiment, a wireless communication network using microwaves is assumed as an example of the wireless communication network. The wireless communication network includes a plurality of wireless stations B (for example, a first wireless station B1 and a second wireless station B2 shown in FIG. 1). As shown in FIG. 1, the first wireless station B1 is provided with a first antenna A1, and the second wireless station B2 is provided with a second antenna A2. Wireless communication between the first wireless station B1 and the second wireless station B2 is achieved by propagation of radio waves between the first antenna A1 and the second antenna A2.

[0011] Whether a wireless communication transmission path between the first antenna A1 and the second antenna A2 is established is determined by the presence or absence of an object O within the Fresnel region Fr. If an object O (e.g., objects Oa and Ob in FIG. 1) is located in the Fresnel region Fr between the first antenna A1 and the second antenna A2, the quality of wireless communication may be degraded due to increased transmission loss. For example, in FIG. 1, object Oa is located within the Fresnel region Fr and may affect the transmission state of radio waves. On the other hand, object Ob is not located within the Fresnel region Fr and does not affect the transmission state of radio waves. Examples of object O include buildings, steel towers, and trees.

[0012] The Fresnel region Fr is the range where there are curved propagation paths whose difference from the shortest straight-line path connecting the antennas is within half a wavelength. The Fresnel region Fr is defined as a spheroid with its axis at the line of sight Ls, which is the shortest straight line connecting the first antenna A1 and the second antenna A2. If the distance from any point P on the line of sight Ls to the first antenna A1 is Dp, the distance from the first antenna A1 to the second antenna A2 (hereinafter referred to as the "section distance") is D0, the frequency of the radio waves transmitted between the antennas is f, and the speed of light is C, the radius of the Fresnel region Fr at the position of point P (hereinafter referred to as the "Fresnel radius rf") is given by the following equation (1). The circle representing the outer edge of the Fresnel region Fr at the position of point P (a circle centered on the line of sight Ls and with a radius of the Fresnel radius rf) is defined as the Fresnel circle Sf. Furthermore, when considering an imaginary line connecting the first antenna A1 and any point on the Fresnel circle Sf, the angle formed between the imaginary line and the line of sight Ls is defined as the line of sight angle θf.

[0013]

number

[0014] FIG. 2 is a block diagram showing the configuration of the determination system 1. The determination system 1 shown in FIG. 2 determines whether a wireless communication transmission path is secured between a first antenna A1 and a second antenna A2. The determination system 1 includes an information processing device 10A, a drone 20A, and an operation device 30. The operation device 30, which is operated by an operator, controls the flight of the drone 20A. The drone 20A is an example of an air vehicle. The drone 20A includes an imaging device 230 (see FIG. 4). The information processing device 10A acquires an image captured by the imaging device 230 from the drone 20A using wireless communication.

[0015] 3 is a block diagram showing the configuration of the information processing device 10 A. The information processing device 10 A includes a processing device 110, a storage device 120, a communication device 130, an input device 140, and a display device 150.

[0016] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of the information processing device 10A may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0017] The processing device 110 is a processor that controls the entire information processing device 10A, and is configured, for example, by one or more chips. The processing device 110 is configured, for example, by a central processing unit (CPU) that includes an interface with peripheral devices, an arithmetic unit, a register, etc. Note that some or all of the functions of the processing device 110 may be realized by hardware such as a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). The processing device 110 executes various processes in parallel or sequentially.

[0018] The processing device 110 functions as an acquisition unit 111, a reception unit 112, a determination unit 113, a generation unit 114, and a display control unit 115, for example, by executing a control program PR1 read from the storage device 120. That is, the processing device 110 includes the acquisition unit 111, the reception unit 112, the determination unit 113, the generation unit 114, and the display control unit 115.

[0019] The acquisition unit 111 acquires image data transmitted from the drone 20A via the communication device 130. The image data indicates a captured image Pc (see, for example, FIG. 7A) captured by the imaging device 230 of the drone 20A. This captured image Pc is an image captured in the direction from the first antenna A1 to the second antenna A2. That is, the acquisition unit 111 acquires the captured image Pc captured in the direction from the first antenna A1 to the second antenna A2. The acquisition unit 111 acquires the captured image Pc from the drone 20A via the communication device 130.

[0020] The receiving unit 112 receives an object distance Dt, which is the distance from a determination target object Ot to the first antenna A1, among a plurality of objects O included in the captured image Pc. The determination target object Ot is one of the plurality of objects O included in the captured image Pc.

[0021] In the first embodiment, the object distance Dt is input by the operator operating the input device 140. The receiving unit 112 receives the object distance Dt output from the input device 140. The operator recognizes the object distance Dt, for example, by referring to a map (not shown). This map may be a paper medium or a map image displayed on the display device 150 (or a display device of an information processing device different from the information processing device 10A). The receiving unit 112 also receives input of various parameters.

[0022] In the following description, multiple determination target objects Ot may be specified. In this case, each determination target object Ot will be referred to as determination target object Ot[x] (x is an integer equal to or greater than 1). The object distance Dt corresponding to the determination target object Ot[x] will be referred to as object distance Dt[x]. The Fresnel radius rf at the position of the determination target object Ot[x] will be referred to as Fresnel radius rf[x], and the outer edge of the Fresnel region Fr at the position of the determination target object Ot[x] will be referred to as Fresnel circle Fs[x]. The separation distance Ds between the determination target object Ot[x] and the line of sight Ls will be referred to as separation distance Ds[x]. The separation distance Ds will be described later.

[0023] The determination unit 113 determines whether the object to be determined Ot will interfere with wireless communication between the first antenna A1 and the second antenna A2 based on the object distance Dt. More specifically, the determination unit 113 calculates a Fresnel region Fr at the position of the object to be determined Ot based on the object distance Dt. Then, the determination unit 113 determines whether the object to be determined Ot is located within the Fresnel region Fr at the position of the object to be determined Ot. If the object to be determined Ot is not located within the Fresnel region Fr, the object to be determined Ot will not interfere with the wireless communication network. On the other hand, if the object to be determined Ot is located within the Fresnel region Fr, the object to be determined Ot may interfere with the wireless communication network. Whether the object to be determined Ot will interfere with the wireless communication network is determined based on the shadowing loss L calculated based on the degree of penetration of the object to be determined Ot into the Fresnel region Fr. A method for calculating the shadowing loss L will be described later.

[0024] The generation unit 114 generates an image to be displayed on the display device 150. The image generated by the generation unit 114 includes a first image showing a Fresnel circle Sf that is the outer edge of the Fresnel region Fr corresponding to the object distance Dt, and an image showing a constant angle circle Sd, which will be described later.

[0025] The display control unit 115 displays on the display device 150 a display image including the image generated by the generation unit 114 and the captured image Pc.

[0026] The storage device 120 is a recording medium readable by the processing device 110, and stores a plurality of programs including the control program PR1 executed by the processing device 110, and various data used by the processing device 110. The storage device 120 may be configured, for example, with at least one of a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), and a random access memory (RAM). The storage device 120 may also be called a register, a cache, a main memory, or the like. The control program PR1 may be transmitted from another device via a network such as the Internet.

[0027] The communication device 130 is hardware (transmission / reception device) for wireless communication with other devices such as the drone 20A. For example, the communication device 130 has one or both of a function to communicate with other devices by short-range wireless communication and a function to communicate with other devices via a mobile communication network or a network.

[0028] The input device 140 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The display device 150 is a display device (for example, various display panels such as a liquid crystal display panel, an organic EL display panel, etc.) that displays information to the outside. The input device 140 and the display device 150 may be integrated into one structure (for example, a touch panel).

[0029] 4 is a block diagram showing the configuration of the drone 20A. The drone 20A includes a processing device 210, a storage device 220, an imaging device 230, a communication device 240, an inertial sensor 250, and a flight mechanism 260.

[0030] The processing device 210 is a processor that controls the entire drone 20A, and is configured, for example, by one or more chips. The processing device 210 is configured, for example, by a central processing unit (CPU) that includes an interface with peripheral devices, an arithmetic unit, and registers. Note that some or all of the functions of the processing device 210 may be realized by hardware such as a DSP, ASIC, PLD, and FPGA. The processing device 210 executes various processes in parallel or sequentially.

[0031] The storage device 220 is a recording medium readable by the processing device 210, and stores a plurality of programs including the control program PR2 executed by the processing device 210, and various data used by the processing device 210. The storage device 220 may be configured with at least one of, for example, a ROM, an EPROM, an EEPROM, and a RAM. The storage device 220 may also be called a register, a cache, a main memory (primary storage device), or the like.

[0032] The imaging device 230 includes, for example, a lens, an image sensor, an image processing engine, etc. The imaging device 230 captures an image of the periphery of the drone 20A and generates a captured image Pc. Image data indicating the captured image is transmitted to the information processing device 10A via the communication device 240. The captured image of the imaging device 230 may be a moving image or a still image. In this embodiment, the imaging device 230 captures a moving image. The on / off of imaging by the imaging device 230 (the timing of imaging in the case of a still image) and imaging parameters (for example, imaging magnification or focal length) may be set by the information processing device 10A.

[0033] The communication device 240 is hardware (transmission / reception device) for communicating with other devices such as the information processing device 10A and the operation device 30. For example, the communication device 130 has one or both of a function of communicating with other devices by short-range wireless communication and a function of communicating with other devices via a mobile communication network or a network.

[0034] The inertial sensor 250 may include an acceleration sensor, a gyro sensor, and a geomagnetic sensor. The inertial sensor 250 detects parameters related to the attitude of the drone 20A and outputs the values ​​of the detected parameters to the processing device 210. The processing device 210 controls the flight mechanism 260 using the values ​​of the parameters output from the inertial sensor 250.

[0035] The flight mechanism 260 includes a propeller and a motor that rotates the propeller. The driving state of the motor of the flight mechanism 260 is controlled by the processing device 210. The processing device 210 controls the driving state of the motor based on operation information received from the operation device 30.

[0036] The operation device 30 includes a controller and a communication device. The controller is an operation device (for example, a joystick, button, switch, etc.) that accepts operations to specify the position and attitude of the drone 20A. The communication device is hardware (transmission / reception device) for communicating with the communication device 240 of the drone 20A. The operation device 30 generates operation information based on operations on the controller and transmits the operation information to the drone 20A. A display device may be provided on the operation device 30 so that an image captured by the imaging device 230 of the drone 20A can be displayed. In this way, the position and attitude of the drone 20A can be grasped in detail, and the drone 20A can be controlled more efficiently.

[0037] Next, the processing device 110 of the information processing device 10A will be described in detail. As described above, the processing device 110 includes the acquisition unit 111, the reception unit 112, the determination unit 113, the generation unit 114, and the display control unit 115.

[0038] The operation of the information processing device 10A will be described using FIGS. 5 to 11. FIG. 5 is a flowchart showing the procedure of processing executed by the processing device 110. FIG. 6 is a diagram showing an example of the display of the display device 150 of the information processing device 10A. The display image SC1 of FIG. 6 displays a captured image display section M0 displaying a captured image Pc captured by the drone 20A, a camera specification display section M1, a transmission path specification display section M2, a measurement specification display section M3, a drawing specification display section M4, a shooting magnification display section M5, a Fresnel radius display section M6, a ridge separation display section M7, a margin display section M8, an image capture button BT1, a fixed angle circle drawing button BT2, a Fresnel drawing button BT3, a separation gauge set button BT4, and a separation calculation button BT5. Details of these are described in each step of FIG. 5.

[0039] S11: When the worker inputs various parameters using the input device 140, the processing device 110 functions as the receiving unit 112 and receives the various parameters. For example, when the worker places the cursor on a parameter display portion (for example, any of the display portions M1 to M4 in FIG. 6) in the display image SC1 and clicks it, the worker can input the parameters displayed in that display portion.

[0040] The parameters are broadly categorized into camera specifications, transmission path specifications (micro route specifications), measurement specifications, and drawing specifications. The camera specification parameters are displayed in the camera specification display section M1 of FIG. 6. The camera specification parameters include the size of the image sensor used in the imaging device 230 and the minimum focal length of the imaging device 230. The transmission path specification parameters are displayed in the transmission path specification display section M2 of FIG. 6. The transmission path specification parameters include the frequency band of the microwaves transmitted between the first antenna A1 and the second antenna A2 and the section distance D0 between the first antenna A1 and the second antenna A2. The measurement specification parameters are displayed in the measurement specification display section M3 of FIG. 6. The measurement specification parameters include the object distance Dt, which will be described later, and the lens focal length of the lens of the imaging device 230. The drawing specification parameters are displayed in the drawing specification display section M4 of FIG. 6. The drawing specification parameters include the fixed angle circle angle θ, which will be described later.

[0041] S12: In the display image SC1, the captured image display section M0 displays a captured image Pc of a moving image captured by the drone 20A. When the worker presses the image capture button BT1, the processing device 110 functions as the acquisition section 111 and acquires the captured image Pc of a still image. That is, when the image capture button BT1 is pressed, the acquisition section 111 acquires a part of the still image constituting the moving image as the captured image Pc.

[0042] FIG. 7A is an enlarged view of the captured image Pc. The captured image Pc shown in FIG. 7 shows the second antenna A2 and objects O (O1 to O6). The object O is located between the first antenna A1 and the second antenna A2. Specifically, the objects O1 to O5 are buildings such as buildings, and the object O6 is a power transmission tower. The objects O1 to O6 are closest to the first antenna A1 in the order of O1, O4, O3, O2, O5, and O6. That is, the object O1 is closest to the first antenna A1, and the object O6 is farthest from the first antenna A1. To improve the accuracy of subsequent processing, it is preferable that the center of the captured image Pc coincide with the line of sight Ls connecting the first antenna A1 and the second antenna A2. That is, it is preferable that the shooting direction of the imaging device 230 coincide with the line of sight Ls.

[0043] S13: When the worker presses the confined circle drawing button BT2, the processing device 110 displays an image on the display device 150 prompting the worker to specify the second antenna A2. The worker specifies the center of the second antenna A2 using a mouse or the like, thereby specifying the coordinates (x1, y1) of the line of sight Ls on the captured image Pc. Thereafter, the processing device 110 functions as the generation unit 114 and generates image data representing the confined circle Sd. The processing device 110 then functions as the display control unit 115 and displays on the display device 150 a display image in which the image of the confined circle Sd is superimposed on the captured image Pc. FIG. 7B is an example of a display image Pd1 in which the image of the confined circle Sd is superimposed on the captured image Pc.

[0044] The definite circle Sd is a circle used for primary determination of whether line of sight is achieved in the transmission path. FIG. 8 is a diagram schematically illustrating the definite circle Sd. The definite circle Sd is defined as the set of cross-sectional edges Fd of a right circular cone C whose apex is the center of the lens Le positioned at the first antenna A1 and whose axis is the line of sight Ls. The angle between the line of sight Ls and the generating line Lb of the right circular cone C is defined as the definite circle angle θ. The definite circle Sd drawn on the captured image Pc, i.e., the definite circle Sd on the image sensor IS, is the result of superimposing projections of the side surfaces of the right circular cone C at all distances Dd on the line of sight Ls. The radius rd of the definite circle Sd on the captured image Pc is determined by the size of the image sensor IS, the minimum focal length of the imaging device 230, the lens focal length at the time of measurement, and the definite circle angle θ. Therefore, if the imaging conditions (size of the image sensor IS, minimum focal length of the imaging device 230, lens focal length at the time of measurement) are constant, the radius rd of the constant angle circle Sd increases as the constant angle circle angle θ increases.

[0045] FIG. 9 is a diagram showing the relationship between the rated circle Sd and the Fresnel region Fr. FIG. 10 is a graph showing the relationship between the Fresnel radius rf and the radius rd of the constant angle circle Sd. More specifically, FIG. 10 is a graph in which the line-of-sight angle θf at each point between the first antenna A1 and the second antenna A2 is replaced with the constant angle circle angle θ. Each data series shows the results when the section distance D0 is changed in 1-kilometer increments from 1 km to 12 km. The frequency f of the radio waves transmitted between the antennas is assumed to be 11 GHz.

[0046] As shown in Figure 10, regardless of whether the section distance D0 is 1 km to 12 km, the Fresnel radius rf at each point between the first antenna A1 and the second antenna A2 is smaller than the radius rd of the constant angle circle Sd with a constant angle circle angle θ = 1°, except in the immediate vicinity of the first antenna A1.

[0047] 9, the Fresnel region Fr at each point between the first antenna A1 and the second antenna A2 is included within the confined circle Sd with a confined circle angle θ=1°. Therefore, in this embodiment, a primary determination of visibility is performed using the confined circle Sd with a confined circle angle θ=1°. The center of the confined circle Sd on the captured image Pc is set to coordinates (x1, y1).

[0048] 10, the Fresnel radius rf at a point 300 m or more away from the first antenna A1 is smaller than the radius rd of the constant angle circle Sd with the constant angle circle angle θ=0.5°, regardless of whether the section distance D0 is 1 km to 12 km. Therefore, depending on the measurement conditions, the constant angle circle angle θ may be set to 0.5° (or greater than 0.5° and less than 1°).

[0049] S14: The worker determines whether any object O other than the second antenna A2 is present inside the fixed circle Sd displayed on the display device 150 and inputs the determination result into the information processing device 10A. As described above, the area surrounded by the fixed circle Sd is larger than the Fresnel region Fr. Therefore, if no object O other than the second antenna A2 is present inside the fixed circle Sd, the visibility between the first antenna A1 and the second antenna A2 is good and there is no interference with wireless communication. When the processing device 110 receives an input of a determination result indicating that no object O other than the second antenna A2 is present inside the fixed circle Sd (S14: NO), the processing device 110 proceeds to S26. In this way, by having the processing device 110 draw the fixed circle Sd, visibility inspection can be completed with a single determination at points with good visibility, thereby reducing the processing load on the worker.

[0050] S15: When the input of the determination result that the object O exists inside the confined circle Sd is received (S14: YES), the processing device 110 requests the operator to input the object distance Dt. The operator determines the object closest to the first antenna A1 among the objects O existing inside the confined circle Sd as the determination target object Ot[1], and inputs the object distance Dt[1], which is the distance from the determination target object Ot[1] to the first antenna A1, using the input device 140. The processing device 110 functions as the receiving unit 112 and receives the object distance Dt[1].

[0051] For example, in the example of the captured image Pc in Fig. 7B, objects O2 to O6 are included within the fixed circle Sd. Of these, the object O4 is closest to the first antenna A1. Therefore, the object to be determined Ot[1] is object O4. The operator inputs the distance to object O4 as the object distance Dt[1].

[0052] S16: When the worker presses the Fresnel drawing button BT3, the processing device 110 functions as the generation unit 114 and generates image data indicating the Fresnel circle Sf. Specifically, the generation unit 114 calculates the Fresnel radius rf[1] at the position of the determination target object Ot[1] using the object distance Dt[1] as the distance Dp in the above formula (1). The Fresnel circle Sf[1] indicated by the image data is a circle centered at the coordinates (x1, y1) and having a radius of the Fresnel radius rf[1].

[0053] The processing device 110 also functions as the display control unit 115, generates a display image Pd2 (Pd2a or Pd2b) by superimposing an image of the Fresnel circle Sf[1] on the captured image Pc, and displays the display image Pd2 on the display device 150. The area inside the Fresnel circle Sf[1] is the Fresnel region Fr. FIGS. 7C and 7D are examples of the display image Pd2 by superimposing the image of the Fresnel circle Sf[1] on the captured image Pc. In the display image Pd2a shown in FIG. 7C, an object O4, which is the object to be determined Ot[1], is present inside the Fresnel circle Sf[1]. In the display image Pd2b shown in FIG. 7D, an object O4, which is the object to be determined Ot[1], is not present inside the Fresnel circle Sf[1]. The display control unit 115 displays the display image Pd2 in the captured image display portion M0 of the display image SC1 shown in FIG. 6, and also displays the value of the Fresnel radius rf[1] in the Fresnel radius display portion M6 of the display image SC1.

[0054] S17: The worker determines whether the object to be determined Ot[1] is located inside the Fresnel circle Sf[1] (indicated as "inside the Fresnel circle" in the flowchart) and inputs the determination result to the information processing device 10A. If the input indicates that the object to be determined Ot[1] is not located inside the Fresnel circle Sf[1] (S17: NO), the processing device 110 proceeds to S22.

[0055] S18: If it is input that the determination target object Ot[1] is located inside the Fresnel circle Sf[1] (S17: YES), the processing device 110 calculates the separation distance Ds[1] and the negative margin Mm. More specifically, the processing device 110 functions as the receiving unit 112 and receives a separation gauge set for the determination target object Ot[1]. Specifically, for example, the operator operates the input device 140 to specify the position of the determination target object Ot[1] on the display image Pd2 at which the distance from the line of sight Ls (coordinates (x1, y1)) is smallest, thereby specifying coordinates (x2, y2) on the display image Pd2 that indicate the position of the determination target object Ot[1] at which the distance from the line of sight Ls is smallest. The specification of the coordinates (x2, y2) corresponds to the separation gauge set.

[0056] The processing device 110 calculates the separation distance Ds[1] and the negative margin Mm[1] using the coordinates (x1, y1), (x2, y2) on the display image and the Fresnel circle Sf[1]. FIG. 7E shows a display image Pd3 displaying the coordinates (x1, y1), (x2, y2), the separation distance Ds[1], and the negative margin Mm[1]. The separation distance Ds[1] is the distance between the line of sight Ls and the object to be determined Ot[1]. The margin is the distance between the object to be determined Ot[1] and the Fresnel circle Sf[1]. If the object to be determined Ot[1] is not located inside (outside) the Fresnel circle Sf[1], the margin is a positive value. If the object to be determined Ot[1] is located inside the Fresnel circle Sf[1], the margin is a negative value.

[0057] The imaging conditions (camera specifications, imaging magnification, etc.) of the imaging device 230 and the object distance Dt[1] to the determination target object Ot[1] are known. Therefore, the processing device 110 can convert the distance between the coordinates (x1, y1) and (x2, y2) on the display image into a separation distance Ds[1] in real space. The processing device 110 can also convert the distance between the coordinates (x2, y2) on the display image and the position of the Fresnel circle Sf[1] closest to the coordinates (x2, y2) into a negative margin Mm[1] in real space. The negative margin Mm[1] can also be calculated by subtracting the separation distance Ds[1] from the Fresnel radius rf[1] (Mm = rf - Ds).

[0058] Thereafter, the processing device 110 functions as the display control unit 115 and displays the calculation result on the display device 150. More specifically, the separation distance Ds[1] is displayed in the ridge separation display area M7 of the display image SC1 shown in Fig. 6, and the value of the negative margin Mm is displayed in the margin display area M8 of the display image SC1 shown in Fig. 6. In addition, the display control unit 115 displays the display image Pd3 in the captured image display area M0 of the display image SC1 shown in Fig. 6.

[0059] S19: The processing device 110 functions as the determination unit 113, and estimates the influence of the determination target object Ot[1] on communication based on the degree of overlap between the Fresnel circle Sf[1] and the determination target object Ot[1]. For example, the determination unit 113 estimates the influence of the determination target object Ot[1] on communication by calculating the received power Pe at the first antenna A1.

[0060] Specifically, the determination unit 113 calculates the area Ns[1] where the determination target object Ot[1] and the Fresnel region Fr[1] overlap on the captured image Pc. The determination unit 113 calculates the shadowing loss L[1] caused by the determination target object Ot[1] from the ratio of the area Ns[1] to the area Nf[1] within the Fresnel region Fr[1] at the position of the determination target object Ot[1] using the following formula (2). In the following formulas (2) to (5), each parameter is generalized using x.

[0061] L[x] = 10*log(Nf[x] / (Nf[x]-Ns[x])) ···(2)

[0062] The range of the determination target object Ot[1] on the captured image Pc is specified, for example, by an operator tracing the edge portion of the determination target object Ot[1] on the captured image Pc using the input device 140. Alternatively, the processing device 110 may automatically extract the edge of the determination target object Ot[1] on the captured image Pc.

[0063] Furthermore, the determining unit 113 calculates the free space loss Ld[D0] corresponding to the section distance D0 between the first antenna A1 and the second antenna A2 using the following formula (3).

[0064] Ld[D0] = 10*log(4*π*D0*f / c) 2 ···(3)

[0065] The determination unit 113 calculates the received power Pe at the first antenna A1 using the following equation (4): In the following equation (4), Pt is the transmission power, G1 is the antenna gain of the first antenna A1, and G2 is the antenna gain of the second antenna A2.

[0066] Pe = Pt+G1+G2-Ld[D0]-L[x] … (4)

[0067] If there are multiple objects to be determined Ot located inside the Fresnel circle Sf, the shadowing loss L[x] corresponding to each object to be determined Ot[x] is accumulated. That is, the received power Pe is calculated by the following formula (5).

[0068] Pe = Pt+G1+G2-Ld[D0]-ΣL[x] … (5)

[0069] S20: The processing device 110 functions as the determination unit 113 and determines whether the influence of the determination target object Ot[1] on communication is within an acceptable range. In other words, the determination unit 113 determines whether the determination target object Ot will interfere with wireless communication between the first antenna A1 and the second antenna A2 based on the object distance Dt accepted by the acceptance unit 112. For example, the determination unit 113 determines whether the received power Pe at the first antenna A1 is equal to or greater than a predetermined minimum received power Pmin. If the received power Pe is equal to or greater than the minimum received power Pmin, the determination unit 113 determines that the influence of the determination target object Ot[1] on communication is within an acceptable range (S20: YES). Then, the processing device 110 proceeds to S23.

[0070] S21: If the received power Pe is less than the minimum received power Pmin, the determination unit 113 determines that the influence of the determination target object Ot[1] on communication exceeds the allowable range (S20: NO). The processing device 110 functions as the generation unit 114 and generates a determination image indicating that the determination target object Ot[1] will cause a communication problem. Specifically, it generates a determination image indicating that there is a possibility that a problem will occur in the communication quality between the first antenna A1 and the second antenna A2. Then, the processing device 110 functions as the display control unit 115 and displays a determination image indicating that there is a possibility that a problem will occur in the communication quality on the display device 150, and ends the processing of this flowchart.

[0071] If the determination target object Ot[1] is not located inside the Fresnel circle Sf[1] in S22:S17 (S17:NO), the processing device 110 calculates the positive margin Mp[1] using the coordinates (x2, y2) on the display image and the Fresnel circle Sf[1]. The method for calculating the positive margin Mp[1] is the same as the method for calculating the negative margin Mm[1]. FIG. 7F shows a display image Pd4 displaying the positive margin Mm[1]. The processing device 110 functions as the display control unit 115 and displays the calculation result on the display device 150. More specifically, the value of the positive margin Mp[1] is displayed in the margin display area M8 of the display image SC1 shown in FIG. 6. Furthermore, the display control unit 115 displays the display image Pd4 in the captured image display area M0 of the display image SC1 shown in FIG. 6.

[0072] S23: The worker determines whether an object O other than the determination target object Ot[1] and the second antenna A2 exists inside the Fresnel circle Sf[1]. If there are no objects other than the determination target object Ot[1] and the second antenna A2 inside the Fresnel circle Sf[1] (S23: NO), the processing device 110 proceeds to S26. Note that if the processing reaches S23 via S17: NO, the determination target object Ot[1] does not exist inside the Fresnel circle Sf[1], so the worker determines whether there is an object O other than the second antenna A2 inside the Fresnel circle Sf[1].

[0073] S24: If an object O other than the determination target object Ot[1] and the second antenna A2 is present inside the Fresnel circle Sf[1] (S23: YES), the worker sets the object O that is next closest to the first antenna A1 after the determination target object Ot[1] among the objects O inside the Fresnel circle Sf[1] as a new determination target object Ot[2]. For example, in the case of the display image Pd3 shown in FIG. 7E, the worker sets the object O3 as the new determination target object Ot[2].

[0074] S25: When the operator inputs the object distance Dt[2] from a new determination target object Ot[2] to the first antenna A1 using the input device 140, the processing device 110 functions as the receiving unit 112 and receives the object distance Dt[2]. After this, the processing device 110 returns the process to S16. In S16, a new Fresnel circle Sf[2] is generated according to the object distance Dt[2] of the new determination target object Ot[2]. That is, the processing device 110 repeatedly receives the object distance Dt and repeats the determination until there are no more objects located inside the Fresnel circle Sf and between the first antenna A1 and the second antenna A2.

[0075] S26: If it is determined in S14 that no object O other than the second antenna A2 exists inside the fixed angle circle Sd, or if it is determined in S23 that no object other than the determination target object Ot and the second antenna A2 exists inside the Fresnel circle Sf, the processing device 110 functions as the generation unit 114 and generates a determination image indicating that there is no problem with the communication quality between the first antenna A1 and the second antenna A2. Then, the processing device 110 functions as the display control unit 115 and displays on the display device 150 a determination image indicating that there is no possibility of a problem with the communication quality, and the processing of this flowchart ends.

[0076] In the above-described flowchart, the determination unit 113 determines whether a problem will occur in communication quality based on whether the received power Pe is equal to or greater than the minimum received power Pmin (S19 and S20). The process is not limited to this. The determination unit 113 may immediately determine that a problem may occur in communication quality when a determination result indicating that the determination target object Ot[1] is located inside the Fresnel circle Sf[1] is input in S17 of Fig. 5. In this case, if it is determined in S17 that the determination target object Ot is located inside the Fresnel circle Sf[1] (S17: YES), the processing device 110 advances the process to S22.

[0077] As described above, when the determination result of the determination unit 113 is negative (S20: NO) and an object O next to the determination target object Ot is present inside the Fresnel circle Sf closest to the first antenna A1, the reception unit 112 sets the object O to be determined as a new determination target object Ot (S24) and receives the object distance Dt to the new determination target object Ot (S25). Then, the reception unit 112 repeats reception and the determination unit 113 repeats determination until there are no more objects O located inside the Fresnel circle Sf and between the first antenna A1 and the second antenna A2.

[0078] 11 is a diagram schematically showing the relationship between the Fresnel circle Sf and the line-of-sight angle θf. As in FIG. 1, a point on the line-of-sight Ls at a distance Dp from the first antenna A1 is defined as point P. The line-of-sight angle θf corresponding to the Fresnel circle Sf at point P is always smaller than the line-of-sight angle θf corresponding to the Fresnel circle Sf at a point on the line-of-sight Ls closer to the first antenna A1 than point P (for example, points p1 and p2). Therefore, if there is no object O located farther than the object to be determined Ot inside the Fresnel circle Sf at the position of the object to be determined Ot, it can be determined that the communication quality in the section farther from the object to be determined Ot is good.

[0079] As described above, in the first embodiment, among the objects O appearing within the fixed angle circle or the Fresnel circle Sf, the objects O closest to the first antenna A1 are selected as the object to be determined Ot. That is, in the information processing device 10A, it is possible to reduce the processing load related to the line of sight investigation and shorten the processing time required for the line of sight investigation, compared to a case where the object O appearing within the fixed angle circle in the captured image is simply selected as the object to be determined Ot.

[0080] In the first embodiment, the processing device 110 calculates the Fresnel radius rf at the position of the determination target object Ot using the object distance Dt input by the operator. This processing can simplify the configuration of the determination system 1 compared to when the object distance Dt is calculated by the processing device 110.

[0081] In the first embodiment, the drone 20A is equipped with the imaging device 230, and the drone 20A is flown to the position of the first antenna A1 to capture an image. This configuration reduces the burden on the worker in the visibility survey compared to when the worker carries an imaging device and a transit or the like and works at the first antenna A1.

[0082] 2. Second embodiment In the first embodiment, whether or not an object O is located inside a definite circle or a Fresnel circle is determined by an operator. Also, in the first embodiment, an object distance Dt to a determination target object Ot is input by an operator. On the other hand, in the second embodiment, the determination of whether or not an object O is located inside a definite circle or a Fresnel circle and the input of an object distance Dt to a determination target object Ot are performed by an information processing device 10B. In the second embodiment, the same components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, and detailed description thereof will be omitted.

[0083] Fig. 12 is a block diagram showing the configuration of the information processing device 10B, and Fig. 13 is a block diagram showing the configuration of the drone 20B. The determination system 1 of the second embodiment uses the information processing device 10B instead of the information processing device 10A, and uses the drone 20B instead of the drone 20A.

[0084] The drone 20B includes a first imaging device 230A and a second imaging device 230B instead of the imaging device 230. The first imaging device 230A outputs first captured image data representing a first captured image. The second imaging device 230B outputs second captured image data representing a second captured image. The first imaging device 230A and the second imaging device 230B are fixed to the drone 20B, spaced a predetermined distance apart. The optical axis of the first imaging device 230A and the optical axis of the second imaging device 230B are parallel. Therefore, a set of the first captured image and the second captured image constitutes a so-called stereo image. The first captured image data and the second captured image data are transmitted to the information processing device 10B via the communication device 240.

[0085] The information processing device 10B differs from the information processing device 10A in that it includes an identification unit 116 and a distance calculation unit 117.

[0086] The identification unit 116 identifies the order in which one or more objects O located inside a fixed angle circle or a Fresnel circle overlap based on the first captured image and the second captured image, and identifies a new object to be determined Ot[x] based on the order.

[0087] The distance calculation unit 117 calculates the object distance Dt[x], which is the distance from the object to be determined Ot[x] to the first antenna A1, based on the first captured image and the second captured image, and inputs the calculated object distance Dt[x] to the reception unit 112.

[0088] Fig. 14 is a flowchart showing the procedure of processing executed by the processing device 110. In the following explanation, steps that are the same as those in the flowchart of the first embodiment shown in Fig. 5 are given the same step numbers as in Fig. 5, and explanations thereof will be omitted.

[0089] S12A: When the worker presses the image capture button BT1 (see FIG. 6), the processing device 110 functions as the acquisition unit 111 and acquires captured images. At this time, the acquisition unit 111 acquires first captured image data indicating the first captured image and second captured image data indicating the second captured image. The first captured image and the second captured image are stereo images captured at the same time by the first imaging device 230A and the second imaging device 230B, respectively.

[0090] S12B: The processing device 110 identifies an object appearing in the captured image. The processing device 110 extracts edges included in the captured image by, for example, image processing, and identifies the object O appearing in the captured image.

[0091] S14A: The processing device 110 determines whether an object O other than the second antenna A2 exists inside the confined circle Sd. The processing device 110 identifies the second antenna A2 from among the objects O captured in the captured image Pc, for example, by pattern matching. If an object other than the second antenna A2 is located inside the confined circle Sd, the processing device 110 determines that an object O other than the second antenna A2 exists inside the confined circle Sd (S14: YES). Furthermore, if no object other than the second antenna A2 is located inside the confined circle Sd, the processing device 110 determines that no object O other than the second antenna A2 exists inside the confined circle Sd (S14: NO).

[0092] S15A: If an object O other than the second antenna A2 is present inside the confined circle Sd (S14A: YES), the processing device 110 functions as the identification unit 116 and identifies the determination target object Ot[1], which is the object O closest to the first antenna A1, among the objects O located inside the confined circle Sd. Specifically, the processing device 110 identifies the order in which one or more objects O located inside the confined circle Sd overlap, and identifies the determination target object Ot[1] based on the order.

[0093] S15B: The processing device 110 functions as the distance calculation unit 117 and calculates the object distance Dt[1] from the determination target object Ot[1] to the first antenna A1. As described above, the first captured image and the second captured image are stereo images, so the distance calculation unit 117 can calculate the depth direction position of the object O appearing in the captured image (the distance from the first imaging device 230A and the second imaging device 230B). Therefore, in the second embodiment, the worker does not need to refer to a map and input the object distance Dt[1], which improves work efficiency.

[0094] Depending on the arrangement of the objects O within the confined circle Sd, it may be difficult to identify the determination target object Ot[1] based solely on the overlapping order of the objects O. In this case, the processing device 110 may function as the distance calculation unit 117 in S15A to calculate the distance to the object O located inside the confined circle Sd, and then function as the identification unit 116 to identify the determination target object Ot[1].

[0095] S17A: The processing device 110 determines whether the determination target object Ot[1] is located inside the Fresnel circle Sf[1]. Specifically, for example, if the entire portion of the captured image corresponding to the determination target object Ot[1] identified in S15A is located outside the Fresnel circle Sf[1], the processing device 110 determines that the determination target object Ot[1] is not located inside the Fresnel circle Sf[1]. On the other hand, if even a part of the captured image corresponding to the determination target object Ot[1] is located inside the Fresnel circle Sf[1], the processing device 110 determines that the determination target object Ot[1] is located inside the Fresnel circle Sf[1].

[0096] S18A: If the determination target object Ot[1] is located inside the Fresnel circle Sf[1] (S17: YES), the processing device 110 calculates the separation distance Ds[1] and the negative margin Mm[1]. Specifically, for example, the processing device 110 identifies, among the edges of the determination target object Ot[1] extracted from the captured image, the position at which the distance from the line of sight Ls (coordinates (x1, y1)) is the smallest as coordinates (x2, y2), and calculates the separation distance Ds[1] and the negative margin Mm[1]. Therefore, in the second embodiment, the operator does not need to specify the position at which the distance from the line of sight Ls is the smallest among the edges of the determination target object Ot[1].

[0097] S23A: The processing device 110 determines whether or not an object O other than the determination target object Ot[1] and the second antenna A2 is located inside the Fresnel circle Sf[1]. The determination method can be performed, for example, by replacing the fixed angle circle Sd in the above description of S14A with the Fresnel circle Sf[1]. Note that if the processing reaches S23A via S17A:NO, the determination target object Ot[1] is not located inside the Fresnel circle Sf[1], and therefore the processing device 110 determines whether or not an object O other than the second antenna A2 is located inside the Fresnel circle Sf[1].

[0098] S24A: If an object O other than the determination target object Ot[1] and the second antenna A2 is located inside the Fresnel circle Sf[1] (S24A: YES), the processing device 110 functions as the identification unit 116 and identifies the object O that is next closest to the first antenna A1 after the determination target object Ot[1] as a new determination target object Ot[2]. The identification method is the same as in S15A.

[0099] S25A: The processing device 110 functions as the distance calculation unit 117 and calculates the object distance Dt[2] from the new determination target object Ot[2] to the first antenna A1. The calculation method is the same as in S15B. Therefore, the operator does not need to refer to a map and input the object distance Dt[2].

[0100] As described above, in the information processing device 10B, the processing device 110 identifies the order in which the objects O located inside the Fresnel circle Sf overlap based on the captured image, and identifies a new determination target object Ot based on the order. This process eliminates the need for the operator to specify the determination target object Ot, thereby reducing the workload of the operator. Furthermore, it is possible to eliminate the waiting time of the processing device 110 until the operator specifies the determination target object Ot, thereby reducing the processing time.

[0101] Furthermore, in the information processing device 10B, the processing device 110 calculates the object distance Dt to the determination target object Ot based on the first captured image and the second captured image, and calculates the Fresnel radius rf at the position of the determination target object Ot using the calculated distance. This process eliminates the need for the operator to specify the object distance Dt, thereby reducing the workload on the operator. Furthermore, it is possible to eliminate the waiting time of the processing device 110 until the operator specifies the object distance Dt, thereby reducing the processing time.

[0102] That is, in the second embodiment, it is possible to omit the judgment and parameter input by the worker, and therefore, in the second embodiment, it is possible to further improve the work efficiency of the forecast survey compared to the first embodiment.

[0103] 3. Variations (1) In the second embodiment, the information processing device 10B calculates the object distance Dt using the first captured image and the second captured image, but the operator may input the object distance Dt, as in the first embodiment. Also, in the second embodiment, the information processing device 10B identifies the object O closest to the first antenna A1 as the determination target object Ot[1], but the operator may identify the determination target object Ot, as in the first embodiment.

[0104] (2) In the information processing device 10B, the generation unit 114 may generate an identification image that distinguishes a new determination target object Ot (for example, determination target object Ot[2] in the flowchart of FIG. 14) from other objects O in the captured image. The identification image is, for example, an image that shows the outline of the new determination target object Ot. The identification image is also an example of a second image. The display control unit 115 may display, on the display device 150, an image in which an image showing the Fresnel circle Sf and the identification image are superimposed on the captured image. This process allows the operator to confirm which object O has been identified as the new determination target object Ot, thereby improving the accuracy of visibility surveys using the information processing device 10B.

[0105] 4.Other (1) In the above-described embodiment, the storage device (e.g., storage devices 120 and 220) is a recording medium readable by the processing device (e.g., processing devices 110 and 210). While ROM and RAM are exemplified, the storage device may be a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory device (e.g., a card, a stick, a key drive), a CD-ROM (Compact Disc-ROM), a register, a removable disk, a hard disk, a floppy (registered trademark) disk, a magnetic strip, a database, a server, or any other suitable storage medium. The program may also be transmitted from a network via a telecommunications line. The program may also be transmitted from a communications network via a telecommunications line.

[0106] (2) In the above-described embodiments, the described information, parameters, etc. may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0107] (3) In the above-described embodiment, input and output information may be stored in a specific location (for example, a memory) or may be managed using a management table. Input and output information may be overwritten, updated, or added to. Output information may be deleted. Input information may be transmitted to another device.

[0108] (4) In the above-described embodiment, the determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0109] (5) The order of the process procedures, sequences, flowcharts, etc. illustrated in the above-described embodiments may be rearranged unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0110] (6) Each function illustrated in Figures 3, 4, 12, and 13 is realized by any combination of hardware and / or software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are connected directly or indirectly (for example, by wire, wirelessly, etc.) and these multiple devices. A functional block may also be realized by combining software with the single device or the multiple devices.

[0111] Furthermore, the communication devices 130 and 240 are hardware (transmission / reception devices) for performing communication between computers via at least one of a wired network and a wireless network, and are also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. The communication devices 130 and 240 may be configured to include, for example, a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).

[0112] (7) The programs exemplified in the above-described embodiments should be broadly construed to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., regardless of whether software is called software, firmware, middleware, microcode, hardware description language, or by other names.

[0113] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0114] (8) In each of the foregoing embodiments, the terms "system" and "network" are used interchangeably.

[0115] (9) Information, parameters, etc. described in this disclosure may be represented using absolute values, relative values ​​from a predetermined value, or other corresponding information. For example, radio resources may be indicated by indexes. The names used for the above-described parameters are not limiting in any way. Furthermore, mathematical formulas using these parameters may differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not limiting in any way.

[0116] (10) In the above embodiments, the phrase "based on" does not mean "based only on," unless otherwise specified. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0117] (11) Any reference to an element using a designation such as "first," "second," etc., used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0118] (12) When used in this disclosure, the terms "include," "including," and variations thereof are intended to be inclusive, similar to the term "comprising." Furthermore, when used in this disclosure, the term "or" is not intended to be an exclusive or.

[0119] (13) In this disclosure, where articles are added by translation, such as a, an, and the in English, this disclosure may include the nouns following these articles being plural.

[0120] (14) In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combined" may also be interpreted in the same way as "different."

[0121] (15) Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Notification of predetermined information (e.g., notification that "X is true") is not limited to explicit notification, but may be implicit (e.g., not notifying the predetermined information).

[0122] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure. [Explanation of symbols]

[0123] 1...Determination system, 10A, 10B...Information processing device, 20A, 20B...Drone, 30...Operation device, 110...Processing device, 111...Acquisition unit, 112...Reception unit, 113...Determination unit, 114...Generation unit, 115...Display control unit, 116...Identification unit, 117...Distance calculation unit, 120...Storage device, 130...Communication device, 140...Input device, 150...Display device, 210...Processing device, 220...Storage device, 230...Photography Imaging device, 230A...first imaging device, 230B...second imaging device, 240...communication device, 250...inertial sensor, 260...flight mechanism, A1...first antenna, A2...second antenna, B1...first wireless station, B2...second wireless station, D0...section distance, Dt...object distance, Fr...Fresnel region, Fs...Fresnel circle, O...object, Ot...object to be determined, Sf...Fresnel circle, rf...Fresnel radius, θf...line of sight angle.

Claims

1. an acquisition unit that acquires a captured image captured in a direction from the first antenna toward the second antenna; a reception unit that receives a distance from a determination target object among a plurality of objects included in the captured image to the first antenna; a generating unit that generates a first image showing a Fresnel circle that is an outer edge of a Fresnel area corresponding to the distance received by the receiving unit; a display control unit that displays a display image including the first image and the captured image on a display device; Information processing device.

2. when an object next to the object to be determined is present inside the Fresnel circle and is closest to the first antenna, the receiving unit regards the object as a new object to be determined and receives a distance to the new object to be determined; the reception unit repeats reception until there is no object located inside the Fresnel circle and between the first antenna and the second antenna. The information processing device according to claim 1 .

3. an input device for an operator to input the distance; the receiving unit receives the distance output from the input device; The information processing device according to claim 1 .

4. the captured images include a first captured image captured by a first imaging device and a second captured image captured by a second imaging device spaced a predetermined distance from the first imaging device, a distance calculation unit that calculates a distance from the determination target object to the first antenna based on the first captured image and the second captured image, and inputs the calculated distance to the reception unit; The information processing device according to claim 1 .

5. an identification unit that identifies an order in which one or more objects located inside the Fresnel circle overlap based on the captured image, and identifies the new determination target object based on the order; The information processing device according to claim 1 .

6. the generation unit generates a second image in the captured image that distinguishes the new determination target object from other objects; the display control unit displays, on the display device, a display image including an image in which the first image and the second image are superimposed on the captured image. The information processing device according to claim 5 .

7. a communication device for wireless communication with the aircraft; the acquisition unit acquires the captured image from the aircraft via the communication device. The information processing device according to claim 1 .

Images