WO2020189491A1

WO2020189491A1 - Information processing device and information processing method

Info

Publication number: WO2020189491A1
Application number: PCT/JP2020/010789
Authority: WO
Inventors: 脩介渡邉; 忠成長榮; 貢輝福山; 雅和濱野; 山田　武史; 尚史原; 雄一朗瀬川; 康裕北村
Original assignee: 株式会社Ｎｔｔドコモ
Priority date: 2019-03-18
Filing date: 2020-03-12
Publication date: 2020-09-24
Also published as: JPWO2020189491A1; JP7267397B2

Abstract

As a technology for assisting with an operation of an aerial body (20) which inspects a state of a telegraph facility, an intensity information acquisition unit (101) acquires intensity information indicating an intensity of radio waves emitted from a telegraph facility to be inspected for each direction. The intensity information is information which includes, for example, a radiation pattern indicating a gain for each radiation direction of the radio waves emitted from the telegraph facility. On the basis of the intensity information acquired by the intensity information acquisition unit (101), an interference space identification unit (102) identifies radio wave intensity in an airspace in the vicinity of the telegraph facility to be inspected. A flight command unit (103) commands a flight such that interference with the radio waves for which the intensity is indicated by the intensity information acquired by the intensity information acquisition unit (101) is reduced. A command correspondence processing unit (302) carries out a process which corresponds to a command indicated by transmitted command data.

Description

Information processing device and information processing method

The present invention relates to a technique for supporting the operation of an air vehicle.

As a technique for supporting the operation of an air vehicle, Patent Document 1 states that patent document 1 acquires rotation information indicating the orientation of the nacelle and the phase of the blade in the wind turbine to be inspected, and acquires inspection data based on the rotation information. A technique for generating data on the flight route (inspection route) of an aircraft is disclosed.

Japanese Unexamined Patent Publication No. 2018-21491

When acquiring inspection data (image data, etc.) of a telecom equipment with a flying object such as a drone as in the technology of Patent Document 1 in order to inspect the state of a telecom equipment that emits radio waves such as a base station, the radio waves transmitted. May interfere and communication with the aircraft (communication with the pilot used by the operator, etc.) may become unstable.
Therefore, an object of the present invention is to reduce the influence of interference on the communication performed by the flying object.

In order to achieve the above object, the present invention has an acquisition unit that acquires strength information indicating the strength of each direction of radio waves emitted from the telecom equipment, and inspection data of the telecom equipment controlled by wireless communication and from a remote position. Provided is an information processing device including an instruction unit for instructing a flight to reduce interference with radio waves whose intensity is indicated by the acquired intensity information when flying an air vehicle capable of acquiring the data.

According to the present invention, the influence of interference on the communication performed by the flying object can be reduced.

Diagram showing an example of the overall configuration of the equipment inspection system according to the embodiment Diagram showing an example of the hardware configuration of the server device Diagram showing an example of drone hardware configuration Diagram showing an example of the hardware configuration of the radio Diagram showing the functional configuration realized by each device Diagram showing an example of radiation pattern Diagram showing an example of radio field strength in each unit space Diagram showing an example of the displayed instructions The figure which shows an example of the operation procedure of each device in instruction processing Diagram showing an example of a drone's flight path Diagram showing an example of another flight path of a drone Diagram showing an example of a threshold table Diagram showing an example of the instruction content displayed in the modified example

[1] Example FIG. 1 shows an example of the overall configuration of the equipment inspection system 1 according to the embodiment. The equipment inspection system 1 is a system that supports inspection work of telecom equipment using an air vehicle. The telecom equipment in this system is equipment that wirelessly transmits and receives electric signals. The function of the telecommunications equipment is maintained by finding deterioration of the telecommunications equipment through inspection and repairing it if necessary. In this embodiment, the case where the antenna equipment installed in the mobile communication base station is the inspection target will be described.

Inspection of telecom equipment is performed using inspection data, which is data for determining the degree of deterioration (degree of deterioration) and the necessity of repair. The inspection data is, for example, measurement data of an infrared sensor, measurement data of an ultrasonic sensor, measurement data of a millimeter wave sensor, or the like. In this embodiment, the photographing data (data indicating a still image or a moving image) taken by the photographing means is used as the inspection data.

The degree of deterioration and the necessity of repair based on the inspection data are mainly determined by the person in charge of inspection. The person in charge of inspection may judge the degree of deterioration by looking at the displayed inspection data, or determine the degree of deterioration after having the computer perform a process (image processing, etc.) for further analysis of the inspection data. May be good. It is not necessary to limit the subject of the judgment to a person, and for example, artificial intelligence may be made to judge the degree of deterioration or the like.

The equipment inspection system 1 includes a network 2, a server device 10, a drone 20, and a radio 30. The network 2 is a communication system including a mobile communication network, the Internet, and the like, and relays data exchange between devices accessing the own system. The server device 10 accesses the network 2 by wired communication (may be wireless communication), and the drone 20 and the radio 30 access by wireless communication.

In this embodiment, the drone 20 is a rotorcraft type flying object that flies by rotating one or more rotors. The drone 20 has a function of acquiring inspection data of the telecom equipment while flying at a position away from the telegraph equipment to be inspected. In this embodiment, the drone 20 has a photographing function of capturing an ambient image as a function of acquiring inspection data. The drone 20 controls operations such as flight by wireless communication, and acquires inspection data (photographed data of telecom equipment in this embodiment).

The radio 30 is a device that performs proportional control (proportional control), and is used by the operator to operate the drone 20. The radio 30 transmits control data for controlling the operation of the drone 20 such as flight by wireless communication conforming to a standard such as a wireless LAN (Local Area Network) or Bluetooth (registered trademark). The drone 20 controls the operation of its own aircraft according to the control content (control of flight, shooting, etc.) indicated by the received control data.

On the other hand, the antenna equipment from which the drone 20 acquires inspection data also emits strong radio waves. If the radio waves of the antenna equipment interfere with the radio waves for operation, the control of the drone 20 is lost and the risk of collision or crash increases. Therefore, the server device 10 performs instruction processing or the like instructing the drone 20 to fly in which radio wave interference is unlikely to occur. The server device 10 is an example of the "information processing device" of the present invention.

FIG. 2 shows an example of the hardware configuration of the server device 10. The server device 10 may be physically configured as a computer device including a processor 11, a memory 12, a storage 13, a communication device 14, a bus 15, and the like. In the following description, the word "device" can be read as a circuit, a device, a unit, or the like.

Further, each device may be included one or more, or some devices may not be included. The processor 11 operates, for example, an operating system to control the entire computer. The processor 11 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with peripheral devices, a control device, an arithmetic unit, a register, and the like.

For example, the baseband signal processing unit and the like may be realized by the processor 11. Further, the processor 11 reads a program (program code), a software module, data, and the like from at least one of the storage 13 and the communication device 14 into the memory 12, and executes various processes according to the read program and the like. As the program, a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.

Although it has been explained that the various processes described above are executed by one processor 11, they may be executed simultaneously or sequentially by two or more processors 11. The processor 11 may be implemented by one or more chips. The program may be transmitted from the network via a telecommunication line. The memory 12 is a computer-readable recording medium.

The memory 12 may be composed of at least one such as a ROM (ReadOnlyMemory), an EPROM (ErasableProgrammableROM), an EPROM (ElectricallyErasableProgrammableROM), and a RAM (RandomAccessMemory). The memory 12 may be called a register, a cache, a main memory (main storage device), or the like. The memory 12 can store a program (program code), a software module, or the like that can be executed to implement the wireless communication method according to the embodiment of the present disclosure.

The storage 13 is a computer-readable recording medium, and is, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, or a magneto-optical disk (for example, a compact disk, a digital versatile disk, or a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like.

The storage 13 may be called an auxiliary storage device. The storage medium described above may be, for example, a database, server or other suitable medium containing at least one of the memory 12 and the storage 13. The communication device 14 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network.

For example, the above-mentioned transmission / reception antenna, amplifier unit, transmission / reception unit, transmission line interface, and the like may be realized by the communication device 14. The transmission / reception unit may be physically or logically separated from each other in the transmission unit and the reception unit. Further, each device such as the processor 11 and the memory 12 is connected by a bus 15 for communicating information. The bus 15 may be configured by using a single bus, or may be configured by using a different bus for each device.

FIG. 3 shows an example of the hardware configuration of the drone 20. The drone 20 is physically a computer including a processor 21, a memory 22, a storage 23, a communication device 24, a flight device 25, a sensor device 26, a battery 27, a camera 28, a bus 29, and the like. It may be configured as a device. The hardware of the same name shown in FIG. 2 such as the processor 21 is the same type of hardware as in FIG. 2, although there are differences in performance and specifications.

The communication device 24 has a function of communicating with the radio 30 (for example, a wireless communication function using radio waves in the 2.4 GHz band) in addition to the communication with the network 2. The flight device 25 includes a motor 251 and a rotor 252, and is a device for flying its own aircraft. The flight device 25 can move its own aircraft in all directions and make its own aircraft stationary (hovering) in the air.

The sensor device 26 is a device having a sensor group for acquiring information necessary for flight control. The sensor device 26 has, for example, a position sensor that measures the position (latitude and longitude) of the own machine and a direction in which the own machine is facing (the front direction of the own machine is determined by the drone, and the determined front direction). It is equipped with a direction sensor that measures the direction in which the aircraft is facing) and an altitude sensor that measures the altitude of the aircraft.

Further, the sensor device 26 includes a speed sensor for measuring the speed of the own machine and an inertial measurement sensor (IMU (Inertial Measurement Unit)) for measuring the angular speed of three axes and the acceleration in three directions. The battery 27 is a device that stores electric power and supplies electric power to each part of the drone 20. The camera 28 includes an image sensor, optical system parts, and the like, and photographs an object in the direction in which the lens is facing.

FIG. 4 shows an example of the hardware configuration of the radio 30. The radio 30 may be physically configured as a computer device including a processor 31, a memory 32, a storage 33, a communication device 34, an input device 35, an output device 36, a bus 37, and the like. The hardware of the same name shown in FIG. 2 such as the processor 31 is the same type of hardware as in FIG. 2, although there are differences in performance and specifications.

The input device 35 is an input device (for example, a switch, a button, a sensor, etc.) that receives an input from the outside. In particular, the input device 35 includes a left stick 351 and a right stick 352, and accepts an operation on each stick as a movement operation in the front-back direction, the up-down direction, the left-right direction, and the rotation direction of the drone 20. The output device 36 is an output device (for example, a monitor 361, a speaker, an LED (Light Emitting Diode) lamp, etc.) that outputs to the outside. The input device 35 and the output device 36 may have an integrated configuration (for example, the monitor 361 is a touch screen).

In addition, each of the above devices includes hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be composed of. Further, in each of the above devices, a part or all of each functional block may be realized by the hardware. For example, the processor 11 may be implemented using at least one of the hardware.

Each function in each device included in the equipment inspection system 1 is performed by the processor by loading predetermined software (program) on the hardware such as each processor and memory, and the communication by each communication device is controlled. It is achieved by controlling at least one of reading and writing of data in memory and storage.

FIG. 5 shows the functional configuration realized by each device. The server device 10 includes a strength information acquisition unit 101, an interference space identification unit 102, and a flight instruction unit 103. The radio 30 includes an inspection target notification unit 301 and an instruction response processing unit 302. The inspection target notification unit 301 notifies the server device 10 of the telecom equipment to be inspected. The inspection target notification unit 301 displays, for example, a list of the names of the base stations having the telecom equipment to be inspected, and transmits the base station ID of the base station selected by the inspector to the server device 10.

The strength information acquisition unit 101 acquires strength information indicating the strength of each direction of the radio wave emitted from the telecom equipment to be inspected. The strength information acquisition unit 101 is an example of the “acquisition unit” of the present invention. The intensity information is information including, for example, a radiation pattern indicating the gain of radio waves emitted from the telecom equipment in each radiation direction and output information indicating the strength of the radio wave output of the telecom equipment. In this embodiment, for example, a radiation pattern is created in advance by an inspector from the shape of the antenna of each base station, which is the telecom equipment to be inspected.

FIG. 6 shows an example of the radiation pattern. In the example of FIG. 6, the radiation pattern Ae1 on the E surface (electric field surface) and the radiation pattern Ah1 on the H surface (magnetic field surface) are represented. The radiation pattern Ae1 has a large gain in the horizontal direction and a small gain in the vertical direction. The radiation pattern Ah1 has a large gain in the east-west direction B1 and a north-south direction B2, and a small gain in the direction B3 connecting the southwest and the northeast and the direction B4 connecting the southeast and the northwest.

The person in charge of inspection creates output information in advance based on the specifications of the telecom equipment as well as the radiation pattern. The intensity information including the radiation pattern and the output information created by the inspector in this way is stored in, for example, the server device 10 including the base station ID corresponding to each. The strength information acquisition unit 101 reads out the strength information including the base station ID transmitted from the radio 30 from its own device and acquires it as the strength information of the telecom equipment to be inspected.

Note that the strength information may be stored in an external device. In that case, the strength information acquisition unit 101 acquires the strength information read from the external device. Further, in this embodiment, in order to make the explanation easy to understand, it is not necessary to consider the change of the radio field intensity with time. The strength information acquisition unit 101 supplies the acquired strength information to the interference space identification unit 102.

The interference space identification unit 102 sets a space in which the intensity of the radio wave indicated by the intensity information acquired by the intensity information acquisition unit 101 is equal to or higher than the threshold value as an interference space in which the wireless communication performed by the drone 20 and the radio wave emitted by the telegraph equipment interfere with each other. Identify. The interference space specifying unit 102 is an example of the "specific unit" of the present invention. The interference space identification unit 102 stores, for example, airspace information indicating the range of the airspace around the telecom equipment of each base station.

Airspace information is represented by, for example, a unit space. The unit space is a virtual cubic space that is spread tightly in the real space, and is a space that represents the smallest unit of the airspace.
FIG. 7 shows an example of the radio field intensity in each unit space. In the example of FIG. 7, the unit space around the telecom equipment 3 is color-coded into four types. The telegraph equipment 3 is an antenna equipment in which four antennas 4 are arranged so as to be located at each apex of a quadrangle.

In the example of FIG. 7, it is shown that Lv4, Lv3, Lv2, and Lv1 (the relationship of radio field intensity is Lv4> Lv3> Lv2> Lv1) in order from the unit space where the color is dark. In the example of FIG. 7A, the telecom equipment 3 viewed from the south side to the north and the surrounding unit space are shown. Each unit space shown in FIG. 7A is a unit space in which the position of the north-south direction B2 is common to that of the telegraph equipment 3, and as shown on the H plane of FIG. 6, the radio wave in the east-west direction B1 having a large gain is large. It is a unit space in which strength is expressed.

For example, unit spaces having a radio field intensity of Lv4 are lined up in the horizontal direction of the antenna 4 of the telecom equipment 3, and unit spaces having a radio field strength of Lv3 are lined up above and below the unit space of Lv4. Further, unit spaces having a radio field intensity of Lv2 are lined up above and below the unit space of Lv3, and unit spaces having a radio field strength of Lv1 are lined up above and below the unit space of Lv2. The unit space group having a radio wave intensity of Lv4, the unit space group having Lv3, and the unit space group having a radio wave intensity of Lv2 all have a width in the vertical direction as the distance from the antenna 4 increases, as shown by the gain on the E plane in FIG. It is wider, that is, the vertical range is wider.

In the example of FIG. 7B, the telecom equipment 3 viewed from the southeast side to the northwest and the surrounding unit space are shown. Each unit space shown in FIG. 7B is a unit space in which the position of the direction B4 connecting southeast and northwest is common to that of the telegraph equipment 3, and as shown in the H plane of FIG. 6, the southwest has a small gain. This is a unit space in which the radio field intensity in the direction B3 connecting the northeast and the northwest is represented. For example, unit spaces having a radio field intensity of Lv3 are lined up in the horizontal direction of the antenna 4 of the telecom equipment 3, and unit spaces having a radio field strength of Lv2 are lined up above and below the unit space of Lv3.

In addition, unit spaces with a radio field intensity of Lv1 are lined up above and below the unit space of Lv2. The range in which the radio wave intensity extends in the vertical direction of the unit space group of Lv3 and the unit space group of Lv2 is narrower than that of the unit space group of Lv3 and the unit space group of Lv2 shown in FIG. 7 (a). The interference space identification unit 102 determines the radio wave intensity of each unit space by the radiation pattern of the telegraph equipment 3 (the unit space in the direction of larger gain has a stronger radio wave intensity) and output information (the larger the output of the radio wave of the telegraph equipment, the stronger the radio wave intensity). Is strong) and the distance between each unit space and the antenna 4 (the farther the distance from the antenna 4 is, the weaker the radio field intensity is).

In this embodiment, the interference space specifying unit 102 specifies, for example, a unit space having a radio field intensity of Lv4 as an interference space. The interference space specifying unit 102 generates interference space information indicating a unit space representing the specified interference space. In this embodiment, as shown in FIG. 7A, it is assumed that an interference space is generated in the unit space in the east-west direction B1 and the north-south direction B2 when viewed from the telecom equipment 3. Therefore, the interference space specifying unit 102 generates interference space information indicating each unit space in the east-west direction B1 and the north-south direction B2 as an interference space. The interference space identification unit 102 adds a base station ID to the generated interference space information and supplies it to the flight instruction unit 103.

The flight instruction unit 103 instructs the flight to reduce the interference with the radio wave whose intensity is indicated by the intensity information acquired by the intensity information acquisition unit 101. The flight instruction unit 103 is an example of the "instruction unit" of the present invention. In this embodiment, the flight instruction unit 103 instructs the flight not to pass through the interference space specified by the interference space identification unit 102. In order to give flight instructions, the flight instruction unit 103 stores, for example, equipment information indicating the number of inspection directions required for the antenna equipment of each base station in association with the base station ID.

The inspection direction is the direction to acquire the inspection data of the antenna equipment. For antenna equipment, the number of inspection directions required is determined by the number and arrangement of antennas. For example, in the case of antenna equipment in which one or two or more antennas are arranged straight, inspection data may be acquired from two directions, so that two inspection directions are required. Further, if the antenna equipment has three or more antennas arranged along a triangle, three inspection directions are required.

Also, if the antenna equipment has four or more antennas arranged along a quadrangle or a circle, four inspection directions are required. The flight instruction unit 103 reads out the equipment information stored in association with the base station ID indicated by the supplied interference space information. The flight instruction unit 103 determines the number of directions indicated by the read equipment information from the directions in which the unit space representing the interference space indicated by the supplied interference space information does not exist.

In the case of the telecom equipment 3 shown in FIGS. 6 and 7, the flight instruction unit 103 determines four inspection directions because the four antennas are arranged along the quadrangle. Since the unit space in the four directions of north, south, east, and west is specified as the interference space in the flight instruction unit 103, the four northeast, northwest, southwest, and southeast directions that are not specified as the interference space are specified. Determine one inspection direction.

The flight instruction unit 103 generates instruction data for instructing flight to acquire inspection data for the four determined inspection directions, and transmits the generated instruction data to the radio 30. The instruction response processing unit 302 of the radio 30 performs a process corresponding to the instruction indicated by the transmitted instruction data (hereinafter referred to as “instruction response process”). In this embodiment, the instruction response processing unit 302 performs a process of displaying the instruction content indicated by the instruction data on the monitor 361 of the own device and transmitting the instruction content to the operator as the instruction response process.

FIG. 8 shows an example of the displayed instruction content. In the example of FIG. 8, the instruction handling processing unit 302 puts the character string "Please acquire the inspection data from the following four directions for the telecom equipment 3. Northeast, southeast, southwest, northwest" on the monitor 361 of the radio 30. it's shown. When the operator follows the displayed instruction, the drone 20 flies on the northeast side, the southeast side, the southwest side, and the northwest side of the telecom equipment 3 and acquires inspection data.

Based on the above configuration, the server device 10 performs an instruction process for instructing the flight of the drone 20 to acquire the inspection data of the telecom equipment to be inspected.
FIG. 9 shows an example of the operation procedure of each device in the instruction processing. The operation procedure of FIG. 10 is started, for example, when the operator of the drone 20 performs an operation of selecting a base station to be inspected for the radio 30.

First, when the server device 10 (strength information acquisition unit 101) receives the notification of the base station ID transmitted from the radio 30 (step S11), the radio wave emitted from the telecom equipment of the base station indicated by the received base station ID. (Step S12), the strength information indicating the strength in each direction of is acquired. Next, the server device 10 (interference space specifying unit 102) identifies an interference space in which interference between the wireless communication performed by the drone 20 and the radio wave emitted by the telecom equipment occurs based on the acquired strength information (step S13). ..

Then, the server device 10 (flight instruction unit 103) transmits instruction data instructing the flight to reduce the interference with the radio wave whose intensity is indicated by the intensity information acquired in step S12 to the radio 30 (step S14). Specifically, the server device 10 (flight instruction unit 103) transmits instruction data instructing flight that does not pass through the interference space specified in step S13. The flight path when the operator flies the drone 20 according to the instruction indicated by the transmitted instruction data will be described with reference to FIG.

FIG. 10 shows an example of the flight path of the drone 20. In the example of FIG. 10, the telecom equipment 3 viewed from the southeast side, the flight path Bne1 which is separated into three unit spaces on the northeast side of the telecom equipment 3 and reciprocates up and down, and the unit space 3 on the southwest side of the telecom equipment 3. The flight path Bsw1 is separated and reciprocates up and down. When the flight paths Bne1 and Bsw1 are flown, the drone 20 will fly without passing through an interference space (a unit space having a radio field intensity of Lv4) as shown in FIG. 7B.

If there is no instruction from the server device 10, the operator will decide the flight direction without knowing the radio field strength of each airspace. An example of the flight path in that case will be described with reference to FIG.

FIG. 11 shows an example of another flight path of the drone 20. In the example of FIG. 11, the telecom equipment 3 viewed from the south side, the flight path Be1 which is separated by three unit spaces on the east side of the telegraph equipment 3 and reciprocates up and down, and the west side of the telegraph equipment 3 are separated by three unit spaces. The flight path Bw1 that reciprocates up and down is represented. When the flight paths Be1 and Bw1 are flown, the drone 20 passes through an interference space (a unit space having a radio field intensity of Lv4) as shown in FIG. 7A.

The drone 20 controls the operation of its own machine by receiving the control data transmitted from the radio 30. However, when flying in a space with strong radio wave strength such as an interference space, the radio wave from the radio 30 and the telegraph equipment It is possible that the radio waves from the drone 20 interfere with each other, fail to receive the control data, and the drone 20 is not controlled correctly. In this embodiment, as described above, the flight is instructed to reduce the interference with the radio waves from the telecom equipment.

Therefore, when the operator follows the instruction from the server device 10 as in the example of FIG. 10, the influence of interference on the communication performed by the drone 20 can be reduced as compared with the case where the above flight instruction is not given. .. Further, in this embodiment, the flight that does not pass through the interference space specified as described above is instructed. Therefore, the influence of the interference can be reduced more reliably than in the case where the flight instruction is given without specifying the interference space.

[2] Modifications The above-mentioned examples are merely examples of the implementation of the present invention, and may be modified as follows. Further, the examples and the modified examples may be combined as necessary. When combining the examples and each modification, prioritize each modification (prioritize which one should be prioritized when a conflicting event occurs when each modification occurs). May be good.

[2-1] Frequency band of radio waves Radio wave interference is more likely to occur as the frequency bands of radio waves are closer. Therefore, the interference space specifying unit 102 may specify a larger space as an interference space as the frequency band of the radio wave of the telegraph equipment and the frequency band of the radio wave used by the drone 20 in wireless communication are closer. In this modification, the intensity information acquisition unit 101 acquires intensity information including the frequency band of the radio wave transmitted by the telecom equipment.

The frequency band of radio waves transmitted by telecommunications equipment may differ, for example, for each telecommunications equipment. Further, even in the same telecom equipment, radio waves of a plurality of different frequency bands may be emitted at the same time. In the latter case, the intensity information acquisition unit 101 acquires intensity information including each frequency band of the radio waves emitted at the same time. The interference space identification unit 102 provides a threshold table in which the difference between the radio wave frequency band of the telecom equipment and the radio wave frequency band used by the drone 20 in wireless communication and the radio wave intensity threshold used when specifying the interference space are associated with each other. Use.

FIG. 12 shows an example of a threshold table. In the example of FIG. 12, the difference between the frequency bands “less than Th11”, “Th11 or more and less than Th12”, and “Th12 or more”, and the threshold values “Th1”, “Th2”, and “Th3” (T1 <T2 <T3) Are associated with each other. For example, the interference space specifying unit 102 calculates the difference between the medians of the frequency bands as the difference of the frequency band, and specifies the interference space by using the threshold value associated with the calculated difference in the threshold table.

The smaller the threshold value of the radio field intensity used when specifying the interference space, the more unit space will be specified as the interference space, and the larger the specified interference space will be. That is, by using the threshold table of FIG. 12, the interference space specifying unit 102 specifies the large space as the interference space because the smaller the difference in the frequency band, the smaller the threshold of the radio wave intensity used when specifying the interference space. Will be done.

When the same telegraph equipment simultaneously emits radio waves of a plurality of different frequency bands, the interference space identification unit 102 sets the threshold value associated with the smallest of the above differences in each frequency band in the threshold table. Use to identify the interference space. At that time, the interference space specifying unit 102 specifies the interference space by using the radiation pattern and output information of the radio wave in the frequency band where the difference is minimized.

In this modified example, by changing the size of the interference space based on the difference in the frequency band as described above, the specified interference space is compared with the case where the size of the interference space is made uniform regardless of the difference in the frequency band. Is too small to cause the drone 20 to be affected by interference, that is, it is possible to prevent the drone 20 from losing control and crashing due to the influence of interference.

[2-2] Drone control In the embodiment, the flight of the drone 20 and the acquisition of inspection data were controlled by operating the radio 30, but for example, instructions such as flight path, flight speed, flight time, and shooting timing were given from a personal computer or the like. It may be transmitted to the drone 20 to autonomously control the acquisition of flight and inspection data.

[2-3] Aircraft In the examples, a rotary-wing aircraft type air vehicle was used as the air vehicle, but the vehicle is not limited to this. The air vehicle may be, for example, an airplane type air vehicle or a helicopter type air vehicle. In short, any flying object may be used as long as it can fly around the telecom equipment to be inspected and has a function of acquiring inspection data.

[2-4] Switching to autonomous flight Depending on the telecom equipment, a route that passes through the interference space specified by the interference space identification unit 102 (hereinafter referred to as "interference space route") may be flown in order to acquire inspection data. There may be cases where it must be done. On the other hand, the drone 20 may have an autonomous flight function for autonomous flight on a designated route, as described in the above modification.

If the flight instruction unit 103 must fly on the interference space route and the drone 20 has an autonomous flight function, the flight instruction unit 103 may instruct the drone 20 to fly autonomously on the interference space route. For example, in the example of FIG. 7, when a unit space having a radio field intensity of Lv3 or higher is specified as an interference space, as shown in FIG. 7B, if the radio wave strength does not pass through the unit space of Lv3, the telecom equipment 3 Not all inspection data can be obtained.

In the example of FIG. 7, the flight instruction unit 103 instructs the drone 20 to fly autonomously when the radio field intensity shown in FIG. 7B passes through the unit space of Lv3. For example, the radio 30 may have a function of switching between an operated flight and an autonomous flight that maintains the last operated flight state (autonomous flight that maintains the flight direction, flight speed, etc.) (in this case, at the end). The flight route is specified when the flight is continued in the operated flight state).

In the above case, the flight instruction unit 103 gives an instruction of this modification by notifying the operator of the altitude to switch to autonomous flight and the altitude to switch to flight by operation. Further, the flight instruction unit 103 forcibly switches to autonomous flight when the radio wave intensity reaches the unit space of Lv3 or more with respect to the drone 20, and operates when the radio wave intensity has passed through the unit space of Lv3 or more. You may send instruction data to switch to flight by. In this case, the drone 20 switches between operational flight and autonomous flight as indicated by the received instruction data.

There is a high possibility that the control data from the radio 30 will not reach the drone 20 during the flight in the interference space, but if the drone 20 is flying autonomously, the drone 20 will continue to fly on the specified route even if the control data does not reach. To do. According to this modification, the drone 20 capable of autonomous flight can fly safely even when there is an interference space route, as compared with the case where the switch to autonomous flight is not performed.

The drone 20 controls the operation of its own machine by the control data transmitted from the radio 30 as described above. The control data from the radio 30 includes data for controlling the operation related to flight. That is, the drone 20 has a receiving function for receiving a communication indicating a flight instruction. When the flight instruction unit 103 instructs the autonomous flight as described above, the flight instruction unit 103 may instruct to stop the reception function during the autonomous flight.

When the drone 20 flies in the interference space, there is a possibility that the above receiving function receives incomplete control data due to the interference of radio waves. Further, in some cases, the possibility that the reception function mistakenly receives the radio wave emitted from the telecom equipment as control data is not zero. In this modified example, by stopping the reception function during autonomous flight, an abnormal flight is performed by receiving inappropriate control data and the drone 20 falls, as compared with the case where the reception function is not stopped. You can prevent the situation.

[2-5] Frequency band selection The drone 20 may be able to select wireless communication in two or more frequency bands. For example, in the case of wireless communication conforming to the wireless LAN standard, it may be possible to select between the 2.4 GHz band and the 5 GHz band. In that case, the flight instruction unit 103 may instruct to select wireless communication in a frequency band of two or more frequency bands in which interference with radio waves emitted by the telecom equipment is unlikely to occur.

The flight instruction unit 103 transmits instruction data indicating the instruction content as a character string, as in the embodiment, for example.
FIG. 13 shows an example of the instruction content displayed in this modification. In the example of FIG. 13, the instruction handling processing unit 302 displays the character string "Please select the operation in the 5 GHz band" on the monitor 361 of the radio 30.

In the example of FIG. 13, the telecom equipment emits radio waves in a frequency band in which the difference from the 2.4 GHz band is smaller than the difference from the 5 GHz band. If the operator follows the displayed instructions, wireless communication in the frequency band where interference with the radio waves emitted by the telecom equipment is least likely to occur is surely performed. On the other hand, if there is no frequency band instruction, wireless communication may be performed in a frequency band where interference with radio waves emitted by the telecom equipment is likely to occur, depending on the operator's choice.

In this modified example, it is possible to prevent interference between the wireless communication performed by the drone 20 and the radio wave emitted by the telecom equipment, as compared with the case where the frequency band is not instructed. When three or more frequency bands can be selected, the flight instruction unit 103 may use at least one or more other frequency bands even if the second or later frequency band is less likely to interfere with the radio waves emitted by the telecom equipment. If interference is less likely to occur and the degree of interference falls below a predetermined reference, it may be instructed to select wireless communication in that frequency band. Even in that case, it is possible to suppress the influence of radio wave interference on the acquisition of inspection data as compared with the case where the frequency band is not instructed.

[2-6] Flight instruction The flight instruction unit 103 may instruct flight by a method different from each of the above examples. For example, in the embodiment, the flight instruction unit 103 indicates only the direction in which the inspection data is acquired, but the flight route to be flown may be instructed more specifically. The specific instruction is, for example, an instruction indicating a unit space to be flown, a distance from a telecom facility, a flight speed, a flight direction, or the like.

Further, the flight instruction unit 103 may give a flight instruction in words as in the embodiment, or may give an image or a moving image showing a flight path, for example. Further, in the embodiment, the flight instruction unit 103 instructed the flight to move the drone 20 up and down almost simply, but may instruct a complicated flight to move the drone 20 up and down, left and right, back and forth, and diagonally in order to avoid the interference space. Good. Further, the flight instruction unit 103 may instruct the flight to pass through the interference space when the necessary inspection data cannot be acquired without flying in the interference space.

Further, when the interference space changes with the passage of time, the flight instruction unit 103 may instruct, for example, the period in which the interference space is the smallest as the period for flight. In either case, the flight instruction unit 103 is as unaffected by radio wave interference as possible so that the drone 20 does not lose control and crash due to the above-mentioned radio wave interference that does not reach the correct control data. Just point to.

[2-7] Device for Realizing Each Function The device for realizing each function shown in FIG. 5 is not limited to the above-mentioned device. For example, the drone 20 or the radio 30 may realize the functions realized by the server device 10. In that case, the drone 20 or the radio 30 is an example of the "information processing device" of the present invention. When the drone 20 is realized, the instruction data may be transmitted to the radio 30 as in the embodiment, but it is possible to avoid the interference more quickly if the drone 20 itself makes a flight to reduce the interference according to the instruction. desirable. In any case, it is sufficient that each function shown in FIG. 5 is realized in the entire equipment inspection system 1.

[2-8] Category of Invention In the present invention, in addition to the above-mentioned information processing devices such as the server device 10 and the radio 30, an information processing system including each information processing device and an air vehicle such as a drone 20 (equipment inspection system 1). Can be regarded as an example). Further, the present invention can be regarded as an information processing method for realizing the processing performed by each information processing device, and also as a program for operating a computer that controls each information processing device. The program regarded as the present invention may be provided in the form of a recording medium such as an optical disk in which the program is stored, or may be downloaded to a computer via a network such as the Internet, and the downloaded program may be installed and used. It may be provided in the form of

[2-9] Functional Blocks The block diagram used in the description of the above embodiment shows blocks for functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Further, the method of realizing each functional block is not particularly limited.

That is, each functional block may be realized by using one physically or logically connected device, or directly or indirectly (for example, two or more physically or logically separated devices). , Wired, wireless, etc.) and may be realized using these plurality of devices. The functional block may be realized by combining the software with the one device or the plurality of devices.

Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption. There are broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but only these. I can't. For example, a functional block (constituent unit) for functioning transmission is called a transmitting unit or a transmitter. As described above, the method of realizing each of them is not particularly limited.

[2-10] Handling of input / output information, etc. The input / output information, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information and the like can be overwritten, updated, or added. The output information and the like may be deleted. The input information or the like may be transmitted to another device.

[2-11] Judgment method Judgment may be performed by a value represented by 1 bit (0 or 1), a boolean value (Boolean: true or false), or a numerical value. (For example, comparison with a predetermined value) may be performed.

[2-12] Processing Procedures, etc. The order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in the present disclosure may be changed as long as there is no contradiction. For example, the methods described in the present disclosure present elements of various steps using exemplary order, and are not limited to the particular order presented.

[2-13] Handling of input / output information, etc. The input / output information, etc. may be stored in a specific location (for example, memory) or managed by a management table. Input / output information and the like can be overwritten, updated, or added. The output information and the like may be deleted. The input information or the like may be transmitted to another device.

[2-14] Software Software is an instruction, instruction set, code, code segment, program code, program, regardless of whether it is called software, firmware, middleware, microcode, hardware description language, or another name. , Subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc. should be broadly interpreted.

In addition, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, a website that uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) When transmitted from a server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission medium.

[2-15] Information, Signals, etc. The information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.

[2-16] "Judgment", "Decision"
The terms "determining" and "determining" used in this disclosure may include a wide variety of actions. "Judgment" and "decision" are, for example, judgment, calculation, computing, processing, deriving, investigating, looking up, search, inquiry. It may include (eg, searching in a table, database or another data structure), ascertaining as "judgment" or "decision".

Also, "judgment" and "decision" are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (Accessing) (for example, accessing data in memory) may be regarded as "judgment" or "decision". In addition, "judgment" and "decision" mean that "resolving", "selecting", "choosing", "establishing", "comparing", etc. are regarded as "judgment" and "decision". Can include. That is, "judgment" and "decision" may include that some action is regarded as "judgment" and "decision". Further, "judgment (decision)" may be read as "assuming", "expecting", "considering" and the like.

[2-17] Meaning of "based on" The phrase "based on" used in this disclosure does not mean "based on only" unless otherwise stated. In other words, the statement "based on" means both "based only" and "at least based on".

[2-18] "Different"
In the present disclosure, the term "A and B are different" may mean "A and B are different from each other". The term may mean that "A and B are different from C". Terms such as "separate" and "combined" may be interpreted in the same way as "different".

[2-19] "and", "or"
In the present disclosure, for configurations that can be implemented by either "A and B" or "A or B", the configuration described in one expression may be used as the configuration described in the other expression. For example, when "A and B" are described, they may be used as "A or B" as long as they are not inconsistent with other descriptions and can be implemented.

[2-20] Variations of Aspects, etc. Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched with execution. Further, the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit notification, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.

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 in the present disclosure. The present disclosure may be implemented as an amendment or modification mode without departing from the purpose and scope of the present disclosure as defined by the claims. Therefore, the description of this disclosure is for purposes of illustration only and does not have any restrictive meaning to this disclosure.

1 ... Equipment inspection system, 2 ... Network, 10 ... Server device, 20 ... Drone, 30 ... Propo, 101 ... Strength information acquisition unit, 102 ... Interference space identification unit, 103 ... Flight instruction unit, 301 ... Inspection target notification unit, 302 ... Instruction handling processing unit.

Claims

An acquisition unit that acquires strength information indicating the strength of each direction of radio waves emitted from telecom equipment,
When flying an air vehicle that is controlled by wireless communication and can acquire inspection data of the telecom equipment from a remote position, the flight is instructed to reduce interference with radio waves whose intensity is indicated by the acquired intensity information. An information processing device equipped with an indicator.
It is provided with a specific unit that identifies a space in which the intensity of the radio wave indicated by the acquired intensity information is equal to or greater than a threshold value as an interference space in which the interference occurs.
The information processing device according to claim 1, wherein the instruction unit instructs a flight that does not pass through the specified interference space.
The information processing device according to claim 2, wherein the specific unit specifies a larger space as the interference space as the frequency band of the radio wave of the telecom equipment and the frequency band of the radio wave used by the flying object in wireless communication are closer.
The air vehicle has a function of autonomously flying on a designated route.
The information according to claim 2 or 3, wherein when the instruction unit has to fly a route passing through the interference space in order to acquire the inspection data, the instruction unit instructs the flying object to fly autonomously on the route. Processing equipment.
The air vehicle has at least a receiving function for receiving a communication indicating a flight instruction.
The information processing device according to claim 4, wherein when the instruction unit instructs the autonomous flight, the instruction unit instructs to stop the reception function during the autonomous flight.
The air vehicle can select wireless communication in two or more frequency bands.
The information processing device according to any one of claims 1 to 5, wherein the indicating unit instructs to select wireless communication in a frequency band in which interference with radio waves is unlikely to occur among the two or more frequency bands.
Steps to acquire strength information indicating the strength of each direction of radio waves emitted from telecom equipment, and
When flying an air vehicle that is controlled by wireless communication and can acquire inspection data of the telecom equipment from a remote position, the flight is instructed to reduce interference with radio waves whose intensity is indicated by the acquired intensity information. An information processing method that has steps.