JP2021157624A - Information processing device - Google Patents

Abstract

To suppress flight of an aircraft so as not to cause trouble in communication of other radio communication terminal by increasing strength of received power from a radio communication terminal mounted on the aircraft.SOLUTION: An aircraft operation management device 50 is an information processing device for managing flight of an aircraft 10. An application terminal 60 transmits a flight application input from an administrator such as an organization or an individual who manages flight of the aircraft 10 to the aircraft operation management device 50 via a network 40. When the aircraft 10 related to the flight application flies, the aircraft operation management device 50 specifies a scale of failure related to communication caused by communication between a radio communication terminal 20 of the aircraft 10 and a radio base station 41, and determines propriety of the flight application based on the scale of the failure to transmit information on determination results to the application terminal 60.SELECTED DRAWING: Figure 2

Description

The present invention relates to a technique for determining whether or not a flight application for a flying object can be applied.

In the UMTS (Universal Mobile Telecommunications System) network, Long Term Evolution (LTE) has been specified for the purpose of higher data rate and lower latency (Non-Patent Document 1). LTE uses an OFDMA (Orthogonal Frequency Division Multiple Access) -based method for the downlink (downlink) and SC-FDMA (Single Carrier Frequency Division Multiple Access) for the uplink (uplink) as the multi-access method. Is used. In addition, a successor system to LTE (for example, sometimes referred to as LTE advanced or LTE enhancement (hereinafter referred to as "LTE-A")) has also been studied and specified for the purpose of further widening and speeding up from LTE. (Rel. 10/11).

Taking advantage of its high-speed communication and low latency, LTE and LTE-A systems are not only used as conventional telephones, but also for various purposes such as Internet access-related, entertainment-related such as image / video distribution, and remote control of machines. It is used on a global scale in the field. Among them, what has recently attracted attention is the movement to create new services by equipping flying objects (for example, unmanned aerial vehicles such as drones) with wireless communication terminals of LTE systems.

3GPP TS 36.300 “Evolved UTRA and Evolved UTRAN Overall description”

The LTE system is a system in which a plurality of wireless communication base stations communicate using the same frequency. Therefore, when the radio wave irradiation areas (service areas) of the adjacent wireless communication base stations overlap each other, interference occurs in the overlapping areas, and the interference reduces the frequency utilization efficiency of the system. Specifically, as shown in FIG. 1, in the downlink where the wireless base station transmits radio waves and is received by the wireless communication terminal, a certain wireless communication terminal MT1 existing in the overlapping area is connected to the own terminal MT1. In addition to the radio wave from a certain wireless communication base station BS1, a relatively strong interfering radio wave from the adjacent wireless communication base station BS2 is received, and the communication quality (throughput) is lowered. Further, in the uplink in which the wireless communication terminal transmits radio waves and is received by the wireless base station, a situation occurs in which the wireless communication terminals MT1 and MT2 in the overlapping area are connected to the wireless communication base station BS1 and the wireless communication base station BS2, respectively. .. In this case, the wireless communication base station BS1 receives the interference radio waves from the wireless communication terminal MT2 in addition to the radio waves from the wireless communication terminal MT1, and the communication quality (throughput) of the wireless communication terminal MT1 deteriorates. Therefore, the LTE system operator generally designs the area by adjusting the antenna position of the radio base station and the directivity direction of the antenna so that the size of the overlapping area is minimized. The current LTE system assumes the use of wireless communication terminals near the surface of the earth, and specifically, the area design is also near the surface of the earth so that it is optimal for use near the surface of the earth (about 1.5 m above the ground). It is designed in consideration of non-line-of-sight propagation peculiar to radio wave propagation.

When communication is performed by mounting a wireless communication terminal on an air vehicle such as a drone on an LTE system that assumes the use of a wireless communication terminal near the surface of the earth, unlike the radio wave propagation environment near the surface of the earth, wireless Since the environment between the communication terminal and the wireless base station is almost a line-of-sight propagation environment, as shown in FIG. By receiving radio waves from many wireless base stations as well, the communication quality may deteriorate, resulting in a decrease in communication throughput or a state in which communication cannot be performed. Further, in the uplink, radio waves from the distant sky wireless communication terminals MT1 and MT2 arrive at the wireless base station as interference, which causes interference with the uplink from the wireless communication terminal MT3 communicating near the ground surface. Become. As a result, the amount of interference power received becomes larger than expected at the time of system design, and the wireless communication of the wireless communication terminal MT3 communicating near the ground surface communicating with the wireless base station may be disturbed.

For the use of wireless communication in an aircraft such as a drone, control signals for controlling the aircraft necessary for the flight of the aircraft were photographed on the downlink, and the camera mounted on the aircraft was photographed on the uplink. It is common to transmit video or images. Since the control signal transmitted on the downlink has a relatively low bit rate transmission speed, there is relatively no problem even in the sky where the quality is not sufficient compared to the vicinity of the ground surface, whereas the video and image transmitted on the uplink Transmits high-definition video such as 4K, so a high bit rate transmission speed, that is, a wireless communication terminal needs to transmit radio waves with a large transmission power. This causes interference radio waves from the sky to reach a wide range, causing communication failure to wireless communication terminals that communicate near the surface of the earth.

The present invention has been made in view of such a situation, and an increase in the power received from a wireless communication terminal mounted on an air vehicle may cause a failure in communication of another wireless communication terminal. The purpose is to suppress the flight of the flying object so that it does not occur.

The present invention relates to an application acquisition unit for acquiring a flight application including a scheduled flight position and a scheduled flight date and time of an air vehicle having a wireless communication terminal, and the scheduled flight position and the scheduled flight date and time included in the acquired flight application. Based on the specific unit that specifies the magnitude of the obstacle related to wireless communication caused by the wireless communication between the wireless communication terminal and the wireless base station of the aircraft, and the result specified by the specific unit, whether or not the flight application is possible or not is determined. Provide an information processing device provided with a judgment unit for making a judgment.

The scheduled flight position is a position in airspace units separated by a predetermined reference, and the specific unit may specify the magnitude of the obstacle related to the wireless communication in each of the airspaces.

The planned flight position is a position in an airspace unit separated by a predetermined reference, and the specific unit assigns a weight to the number of wireless communication terminals possessed by each aircraft scheduled to fly in the airspace. , The magnitude of the obstacle related to the wireless communication may be specified.

The specific unit corresponds to the number of radio communication terminals possessed by the air vehicle scheduled to fly in the airspace, and the distance between the radio communication terminal possessed by each air vehicle and each radio base station. A weight may be added to specify the magnitude of the obstacle related to the wireless communication.

The flight application includes a scheduled communication speed of wireless communication executed by the wireless communication terminal of the flying object, and the specific unit is a wireless communication terminal of the wireless communication terminal of the flying object scheduled to fly in the airspace. The number may be weighted according to the scheduled communication speed of the wireless communication terminal of each of the flying objects to specify the magnitude of the obstacle related to the wireless communication.

The specific unit performs the wireless communication based on the distance between the radio base station at the highest position on the ground corresponding to each of the airspaces and the wireless communication terminal of the flying object scheduled to fly in the airspace. You may try to identify the magnitude of the obstacles associated with.

The determination unit determines whether or not the flight application is possible by comparing the magnitude of the obstacle related to wireless communication identified by the identification unit with the threshold value that fluctuates according to the flight conditions of the flying object. It may be.

Measurement to acquire the result of measuring the magnitude of the obstacle related to wireless communication caused by the wireless communication between the wireless communication terminal and the wireless base station of the flying object at the scheduled flight position and the scheduled flight date and time included in the flight application. A result acquisition unit is provided, and the determination unit compares the magnitude of the obstacle related to wireless communication specified by the identification unit with a threshold value to determine whether or not the flight application is possible, and the measurement is acquired. The threshold may be determined according to the result.

Based on the magnitude of the obstacle related to wireless communication specified by the specific unit, the communication speed when the wireless communication terminal of the flying object performs wireless communication at the scheduled flight position and the scheduled flight date and time included in the flight application. A communication plan specifying unit that specifies the range of the above and the number of the wireless communication terminals, and a notification unit that notifies the administrator of the flying object of information about the specified communication speed range and the number of wireless communication terminals. You may.

In the communication plan specifying unit, the wireless communication terminal of the flying object communicates at the scheduled flight position and the scheduled flight date and time included in the flight application based on the magnitude of the obstacle related to the wireless communication specified by the specific unit. The fee for doing may be specified and the notification unit may notify the manager of the aircraft of information regarding the specified fee.

According to the present invention, the flight of the flying object is suppressed so that the communication power received from the wireless communication terminal mounted on the flying object is increased so that the communication of other wireless communication terminals is not disturbed. It becomes possible.

It is a figure explaining the problem in the sky use of the LTE system. It is a block diagram which shows an example of the structure of a flight management system. It is a block diagram which shows the hardware configuration of a wireless communication terminal. It is a block diagram which shows the hardware composition of the aircraft flight management apparatus. It is a block diagram which shows the functional structure of the aircraft flight management apparatus. It is a flowchart which shows the processing procedure of the aircraft flight management apparatus. It is a schematic diagram which illustrates the terminal evaluation number in the airspace unit. It is a figure which shows an example of the data which an aircraft flight management apparatus stores. It is a figure which shows the example of the judgment about whether or not the flight application is possible.

[composition]
FIG. 2 is a diagram showing an example of the configuration of the flight management system 1 according to the present embodiment. The flight management system 1 includes a flying object 10 such as a drone, a wireless communication terminal 20 mounted on the flying object 10, a wireless communication terminal 30 used by a user on the ground, a network 40 including a wireless base station 41, and a network. The aircraft flight management device 50 connected to the 40 and the application terminal 60 connected to the network 40 are provided.

Physically, the air vehicle 10 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an auxiliary storage device, a positioning unit for positioning its own position, and a wireless communication terminal 20. It includes a computer composed of a communication IF (Interface) and the like connected to the computer, and a drive mechanism including various sensors, motors, rotary blades and the like controlled by the computer. The aircraft body 10 flies in the air by controlling the drive mechanism according to the flight plan permitted by the flight object operation management device 50.

The wireless communication terminals 20 and 30 are physically derived from a CPU, ROM, RAM, an auxiliary storage device, a communication IF for communicating via the network 40, a communication IF connected to the computer of the flying object 10, and the like. Become. A wireless communication system is constructed by the wireless communication terminals 20 and 30 and the network 40 including the wireless base station 41. This wireless communication system is, for example, a wireless communication system according to LTE (Long Term Evolution). In LTE, the wireless communication terminals 20 and 30 are called UEs, and the wireless base station 41 is called an eNB. Areas capable of wireless communication with each of the wireless base stations 41 are called cells. The wireless communication terminals 20 and 30 in each cell are wirelessly connected to the wireless base station 41 forming the cell to perform wireless communication. For example, the wireless communication terminal 30 used by a user on the ground executes wireless communication with the wireless base station 41 on the ground. On the other hand, the wireless communication terminal 20 mounted on the aircraft 10 executes wireless communication with the wireless base station 41 not only on the ground but also in the sky (for example, in the airspace at an altitude of 30 m or more).

The flight object operation management device 50 is an information processing device that manages the operation of the flight object 10. The application terminal 60 transmits a flight application input from a manager such as an organization or an individual who manages the flight of the flight object 10 to the flight object flight management device 50 via the network 40. Alternatively, it may be transmitted to the operator who manages the flight vehicle operation management device 50 by a method such as telephone or facsimile as a transmission means and input to the flight object operation management device 50 by the operator. As described with reference to FIG. 1, when the flying object 10 flies, the wireless communication performed by another wireless communication terminal by the wireless communication between the wireless communication terminal 20 and the wireless base station 41 possessed by the flying object 10 is related. Failure can occur. When the flight object 10 according to the flight application flies, the flight object flight management device 50 has a magnitude of an obstacle related to wireless communication caused by wireless communication between the wireless communication terminal 20 and the wireless base station 41 possessed by the flight object 10. Is identified, the approval or disapproval of the above flight application is determined based on the magnitude of the obstacle, and the determination result is recorded. The aircraft flight management device 50 may transmit the determination result to the application terminal 60, display the determination result via the network 40 in response to a request from the application terminal 60, or call, facsimile, or the like. It may be transmitted to a manager such as an organization or an individual who manages the flight of the flying object 10 via. When the flight application is approved, the flight object flight management device 50 identifies the identification information (aircraft ID) of the flight object 10 to be flown and the identification information (airspace) of the airspace to which the flight object 10 is scheduled to fly. The flight plan including the ID) and the date and time when the flying object 10 flies in the airspace is stored. Further, the flight object flight management device 50 may store the flight plan of each flight object 10 and record the identification information (aircraft object ID) of each flight object 10 and the flight status thereof. The flight conditions recorded here include the position where the flight object 10 is flying and the date and time when the flight object 10 arrived at that position. These positions and dates are notified from the wireless communication terminal 20 of the aircraft 10 to the aircraft flight management device 50 via the network 40. The flight object flight management device 50 determines whether or not the position and date and time are within the flight plan, and based on the determination result, issues flight instructions to the flight object 10 via the network 40 and the wireless communication terminal 20 as necessary. conduct. It should be noted that such flight management of the flying object 10 may be realized by using a well-known technique, and detailed description thereof will be omitted in the present specification.

FIG. 3 is a diagram showing an example of the hardware configuration of the wireless communication terminal 20 included in the flying object 10. The wireless communication terminal 20 is physically configured as a computer device including a processor 2001, a memory 2002, a storage 2003, a communication device 2004, an input device 2005, an output device 2006, a bus connecting them, and the like. In the following description, the word "device" can be read as a circuit, a device, a unit, or the like. The hardware configuration of the wireless communication terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.

Each function of the wireless communication terminal 20 is performed by the processor 2001 by loading predetermined software (program) on the hardware such as the processor 2001 and the memory 2002, and the processor 2001 controls the communication by the communication device 2004 or the memory. It is realized by controlling at least one of reading and writing of data in 2002 and storage 2003.

Processor 2001, for example, runs an operating system to control the entire computer. The processor 2001 may be configured by a central processing unit (CPU) including an interface with a peripheral device, a control device, an arithmetic unit, a register, and the like. Further, for example, a baseband signal processing unit, a call processing unit, and the like may be realized by the processor 2001.

The processor 2001 reads a program (program code), a software module, data, and the like from at least one of the storage 2003 and the communication device 2004 into the memory 2002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described later is used. The functional block of the wireless communication terminal 20 may be realized by a control program stored in the memory 2002 and operating in the processor 2001. Various processes may be executed by one processor 2001, or may be executed simultaneously or sequentially by two or more processors 2001. Processor 2001 may be implemented by one or more chips. The program may be transmitted from the network 40 to the wireless communication terminal 20 via a telecommunication line.

The memory 2002 is a computer-readable recording medium, and is composed of at least one such as a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a RAM (Random Access Memory). May be done. The memory 2002 may be referred to as a register, a cache, a main memory (main storage device), or the like. The memory 2002 can store a program (program code), a software module, or the like that can be executed to carry out the method according to the present embodiment.

The storage 2003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, 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. Storage 2003 may be referred to as auxiliary storage.

The communication device 2004 is hardware (transmission / reception device) for performing communication between computers by wireless communication, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like. The communication device 2004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize frequency division duplex and time division duplex. The transmission / reception antenna, the amplifier unit, the transmission / reception unit, the transmission line interface, and the like may be realized by the communication device 2004. The transmission / reception unit may be physically or logically separated from each other in the transmission unit and the reception unit.

The input device 2005 is an input device that accepts input from the outside. The input device 2005 includes, for example, a barometric pressure sensor. The output device 2006 is an output device that performs output to the outside. The input device 2005 and the output device 2006 may be integrated.

The positioning device 2007 is a device that positions the position of the wireless communication terminal 20, that is, the position of the flying object 10 by, for example, GPS (1 Global Positioning System) and a distance measuring camera with respect to the ground surface. The position positioned by the positioning device 2007 is a position in a three-dimensional space including latitude and longitude (mainly positioned by GPS) and altitude (mainly positioned by a distance measuring camera).

Each device such as the processor 2001 and the memory 2002 is connected by a bus for communicating information. The bus may be configured by using a single bus, or may be configured by using a different bus for each device. In the present embodiment, the processor 2001 and its peripheral device position the position of the flying object 10 and select the communication method of the wireless communication terminal 20 based on the position of the flying object 10 as a control device according to the present invention. Function.

Further, the wireless communication terminal 20 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 configured by, and a part or all of each functional block may be realized by the hardware. For example, processor 2001 may be implemented using at least one of these hardware. The configuration of the wireless communication terminal 30 is the same as that of the wireless communication terminal 20, but it is not always necessary to include the positioning device 2007.

FIG. 4 is a diagram showing a hardware configuration of the aircraft flight management device 50. The hardware configuration of the aircraft flight management device 50 may be configured to include one or more of the devices shown in FIG. 4, or may be configured not to include some of the devices. Further, a plurality of devices having different housings may be connected by communication to form the flight vehicle operation management device 50.

The aircraft flight management device 50 is physically configured as a computer device including a processor 5001, a memory 5002, a storage 5003, a communication device 5004, a bus connecting them, and the like. For each function of the aircraft flight management device 50, the processor 5001 performs calculations by loading predetermined software (program) on hardware such as the processor 5001 and the memory 5002, and controls communication by the communication device 5004. It is realized by controlling at least one of reading and writing of data in the memory 5002 and the storage 5003. Each of these devices is operated by electric power supplied from a power source (not shown). In the following description, the word "device" can be read as a circuit, a device, a unit, or the like.

Processor 5001 operates, for example, an operating system to control the entire computer. The processor 5001 may be configured by a central processing unit (CPU) including an interface with a peripheral device, a control device, an arithmetic unit, a register, and the like. Further, for example, a baseband signal processing unit, a call processing unit, and the like may be realized by the processor 5001.

The processor 5001 reads a program (program code), a software module, data, and the like from at least one of the storage 5003 and the communication device 5004 into the memory 5002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described later is used. The functional block of the aircraft flight management device 50 may be realized by a control program stored in the memory 5002 and operating in the processor 5001. Various processes may be executed by one processor 5001, but may be executed simultaneously or sequentially by two or more processors 5001. Processor 5001 may be implemented by one or more chips. The program may be transmitted from the network 40 to the aircraft flight management device 50 via a telecommunication line.

The memory 5002 is a computer-readable recording medium, and is composed of at least one such as a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a RAM (Random Access Memory). May be done. The memory 5002 may be referred to as a register, a cache, a main memory (main storage device), or the like. The memory 5002 can store a program (program code), a software module, or the like that can be executed to carry out the method according to the present embodiment.

The storage 5003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, 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 5003 may be referred to as an auxiliary storage device.

The communication device 5004 is hardware (transmission / reception device) for performing communication between computers via the network 40, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.

Each device such as the processor 5001 and the memory 5002 is connected by a bus for communicating information. The bus may be configured by using a single bus, or may be configured by using a different bus for each device.

The aircraft flight management device 50 includes hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured by, and a part or all of each functional block may be realized by the hardware. For example, processor 5001 may be implemented using at least one of these hardware.

The application terminal 60 is physically configured as a computer device including a processor, a memory, a storage, a communication device, an input device, an output device, a bus connecting them, and the like. In each function of the application terminal 60, the processor loads predetermined software (program) on hardware such as memory, so that the processor performs calculations and controls communication by the communication device, or data in memory and storage. It is realized by controlling at least one of reading and writing of. The processor, memory, storage, communication device, input device, output device, and the bus connecting them connect the processor 5001, memory 5002, storage 5003, communication device 5004, input device 2005, output device 2006, and these. Since the bus and the hardware are the same, the description thereof will be omitted.

FIG. 5 is a diagram showing an example of the functional configuration of the flight vehicle operation management device 50. In the flight body operation management device 50, the application acquisition unit 51 acquires the flight application input to the application terminal 60 by the administrator of the flight body 10 via the network 40. In this flight application, the flying object ID of the flying object 10 scheduled to fly, the number of the flying objects 10, the wireless communication speed planned by the wireless communication terminal 20 possessed by the flying object 10, and the flying object 10 Includes the scheduled flight position (scheduled flight position) and the scheduled flight date and time (scheduled flight date and time). Here, the scheduled flight position of the flying object 10 is designated in units of airspace divided in a mesh shape based on a predetermined reference. In the present embodiment, this airspace is a rectangular parallelepiped having a side of 10 km, but the airspace is not limited to this.

The specific unit 52 is a wireless communication generated by wireless communication between the wireless communication terminal 20 of the aircraft 10 and the wireless base station 41 at the scheduled flight position and the scheduled flight date and time included in the flight application acquired by the application acquisition unit 51. Identify the magnitude of the obstacles associated with. Here, the magnitude of the obstacle related to the radio communication corresponds to the magnitude of the interference estimated to occur in each radio base station 41 due to the flight of the flying object 10. This is referred to as the estimated interference amount below.

The determination unit 53 determines whether or not to accept the flight application based on the result specified by the specific unit 52. Information on the determination result may be transmitted to the application terminal 60 via the network 40, and the information on the determination result may be output on the application terminal 60, or the determination result may be output via the network 40 in response to a request from the application terminal 60. It may be displayed, or transmitted to a manager such as an organization or an individual who manages the flight of the flying object 10 via a telephone, a facsimile, or the like. The application terminal 60 outputs information regarding this determination result.

[motion]
Next, the operation of the present embodiment will be described with reference to FIGS. 6 to 8. In FIG. 6, the administrator of the flight object 10 operates the application terminal 60 to determine the flight object ID of the flight object 10 scheduled to fly, the number of the flight objects 10, and the wireless communication terminal possessed by the flight object 10. Enter the flight application including the radio communication speed scheduled by 20 and the scheduled flight position and scheduled flight date and time of the flight body 10. The application acquisition unit 51 of the aircraft flight management device 50 acquires the flight application via the network 40 (step S11). The flight application for the flight object 10 to the flight object operation management device 50 may be input electronically by the application terminal 60, the network 40, and the application acquisition unit 51 as described above, or the flight object 10 may be input. It is also possible that the administrator inputs the information to the application acquisition unit 51 based on the information transmitted from the administrator such as an organization or an individual who manages the flight to the administrator side by telephone, facsimile or the like.

Next, the specific unit 52 of the flight vehicle operation management device 50 sets the wireless communication terminal 20 and the radio base station of the aircraft body 10 at the scheduled flight position and the scheduled flight date and time included in the flight application acquired by the application acquisition unit 51. The magnitude of the obstacle related to wireless communication caused by wireless communication with 41 is specified for each airspace (step S12). Specifically, it is as follows.

First, the specific unit 52 evaluates the number of flying objects 10 included in the flight application (that is, the total number of wireless communication terminals 20 possessed by these flying objects) in airspace units by the following formula.

Number of evaluation terminals in each airspace = Total number of wireless communication terminals included in each flight application included in the flight application x Position coefficient α x Communication speed coefficient β

The position coefficient α is a coefficient that takes a maximum value in the airspace corresponding to the planned flight position of the flying object 10 and takes a lower value as the distance from the airspace corresponding to the scheduled flight position of the flying object 10 increases. For example, 0 ≤ position coefficient α ≤ 1, and in the airspace corresponding to the planned flight position of the flying object 10 (hereinafter referred to as the planned flight airspace), the position coefficient α = 1 and the airspace adjacent to the planned flight area (hereinafter referred to as the adjacent airspace). In (), the position coefficient α = 0.5, in the airspace adjacent to the adjacent airspace (excluding the planned flight area, hereinafter referred to as the next adjacent airspace), the position coefficient α = 0.25, these planned flight areas and adjacent airspaces. And in the airspace other than the next adjacent airspace, the position coefficient α = 0, and so on. This is because the closer to the planned flight position of the flying object 10 having the wireless communication terminal 20, the greater the obstacles related to wireless communication in other wireless communication terminals.

The communication speed coefficient β is a coefficient that takes a higher value as the wireless communication speed planned by the wireless communication terminal 20 of the flying object 10 increases. For example, when the wireless communication speed planned by the wireless communication terminal 20 of the flying object 10 is 5 Mbps or more, the communication speed coefficient β = 5, and when the wireless communication speed is 3 Mbps or more and less than 5 Mbps, the communication speed coefficient β = 2, When the wireless communication speed is 1 Mbps or more and less than 3 Mbps, the communication speed coefficient β = 1, when the wireless communication speed is less than 1 Mbps, the communication speed coefficient β = 0.5, and so on. This is because the higher the wireless communication speed of the wireless communication terminal 20 included in the flying object 10, the larger the transmission power, and therefore the greater the obstacles related to wireless communication in other wireless communication terminals. In this way, the specific unit 52 determines the distance between each wireless communication terminal 20 and each wireless base station 41 with respect to the number of wireless communication terminals 20 included in the flying object 10 scheduled to fly in each airspace. A weight is given according to the scheduled communication speed of the wireless communication terminal 20.

For example, as illustrated in FIG. 7, it is assumed that three flying objects 10 are scheduled to fly from airspace S to airspace G by a route like an arrow while executing wireless communication at a wireless communication speed of 4 Mbps. The planned flight position of the flying object 10 is specified in units of airspace having a certain size, but here, it is assumed that the flying object 10 flies at the center position of each airspace.

Here, as described above, the position coefficient α = 1 in the planned flight area, the position coefficient α = 0.5 in the adjacent airspace, the position coefficient α = 0.25 in the next adjacent airspace, and in other airspaces. When the position coefficient α = 0 and the wireless communication speed planned by the wireless communication terminal 20 of the flying object 10 is 5 Mbps or more, the communication speed coefficient β = 5, and when the wireless communication speed is 3 Mbps or more and less than 5 Mbps, It is assumed that the communication speed coefficient β = 2, the communication speed coefficient β = 1 when the wireless communication speed is 1 Mbps or more and less than 3 Mbps, and the communication speed coefficient β = 0.5 when the wireless communication speed is less than 1 Mbps.

First, consider the case where three airspaces 10 fly in the airspace S at a certain date and time. At this time, the number of evaluation terminals in the airspace group A1 represented by the darkest shading is the total number of wireless communication terminals 20 × position coefficient 1 × communication speed coefficient 5 = 15, and then the airspace group represented by the darkest shading. The number of evaluation terminals in A2 is the total number of wireless communication terminals 20 x position coefficient 0.5 = 1.5, and the number of evaluation terminals in the airspace group A3 represented by the next darkest shade is that of the wireless communication terminals 20. The total number is 3 × the position coefficient is 0.25 = 0.75, and the number of evaluation terminals in the unshaded airspace group A4 is the total number of the wireless communication terminals 20 × the position coefficient is 0 = 0. The number of evaluation terminals for each airspace unit determines the effect of the wireless communication of each wireless communication terminal 20 on each airspace when the three flying objects 10 fly in the airspace S. It means size. The number of such evaluation terminals is calculated for each airspace corresponding to the route on which the flying object 10 flies, and for each date and time when the aircraft flies in the airspace. Although each airspace was represented on a two-dimensional plane in FIG. 7, each of these airspaces is actually arranged in a three-dimensional space divided according to latitude, longitude, and altitude, and is a terminal. The number of evaluations is also calculated in the three-dimensional space.

Next, the specific unit 52 calculates the estimated interference amount for each airspace and the date and time. Here, as the position of the radio base station 41 installed in the ground area directly under each airspace, the radio base station 41 (hereinafter referred to as the radio base station 41) at the highest position on the ground corresponding to each airspace (the ground directly under each area). , The position of the representative base station) is used. The representative base station is considered to be the most interfering base station here because it is considered to have good visibility over a long distance. The specific unit 52 simulates based on the distance between the planned flight position of the aircraft 10 and the position of the representative base station, the antenna characteristics of the wireless communication terminal 20 and the representative base station, the number of evaluation terminals, and the radio wave propagation model in the air. To calculate the estimated interference amount.

Therefore, the specific unit 52 stores the data group illustrated in FIG. In this data group, the airspace ID of each airspace, the boundary position information indicating the position of the boundary of the airspace (that is, the boundary with the adjacent airspace), and the representative position indicating the position of the center of the airspace (referred to as the representative position). It includes information, position information indicating the position of the representative base station on the ground corresponding to the airspace (the ground directly below each airspace), and the antenna characteristics of the representative base station. In the specific unit 52, when three flying objects 10 fly along the route illustrated in FIG. 7, first, one wireless communication terminal 20 is placed at the representative position of the airspace S (the position at the center of the airspace S). Assuming that there is, the estimated interference amount with respect to the representative base station of the surrounding airspace group including the airspace S (here, the airspace S to be flown, its adjacent airspace and the next adjacent airspace) is calculated for each airspace, and the calculated estimation is performed. The total estimated interference amount is calculated by multiplying each of the interference amounts by the number of evaluation terminals calculated for each of these airspaces. Thereby, when three flying objects 10 are flying in the airspace S, the magnitude of the obstacle related to the wireless communication caused by the wireless communication between each wireless communication terminal 20 and the representative base station directly under each airspace is specified. can do. The identification unit 52 performs such a calculation for each airspace and date and time over the flight path of the flying object 10.

Then, the determination unit 53 determines whether or not the flight application can be made based on the total estimated interference amount specified by the identification unit 52 (step S13 in FIG. 6), and networks the application terminal 60 with information on the determination result. Transmission is performed via 40 (step S14 in FIG. 6). Information on the determination result may be transmitted to a manager such as an organization or an individual who manages the flight of the flying object 10 via a telephone, a facsimile, or the like. Regarding the determination of whether or not to accept the flight application, specifically, the determination unit 53 compares the total estimated interference amount calculated in the airspace specified by the specific unit 52 and the date and time unit with the threshold value, and determines whether or not the flight application is possible. If the total estimated interference amount is below the threshold value in all airspaces or dates and times over the planned flight route, the flight application is permitted, and if the total estimated interference amount exceeds the threshold value in any one or more airspaces or date and time. Do not allow flight applications. This threshold value is a value corresponding to a case where the influence of interference is not negligible, and is determined in advance by calculation or experiment. When the determination unit 53 approves the flight application, in the data group illustrated in FIG. 8, the communication of the flying object ID of each flying object 10 scheduled to fly in each airspace and the communication of the wireless communication terminal 20 possessed by each flying object 10. Memorize the scheduled speed. The flight object ID of each flight object 10 scheduled to fly in each of these airspaces and the scheduled communication speed of the wireless communication terminal 20 possessed by each flight object 10 are stored in association with the scheduled flight date and time.

Here, FIG. 9 is a diagram showing an example of determination as to whether or not a flight application is possible in a certain airspace. Here, in order to explain in an easy-to-understand manner, the flight date and time are expressed by dividing them by day. In the example of the figure, in the target airspace, the total estimated interference amount based on the flight application by the managers A, B, C, and D of the flight object 10 is calculated with respect to the scheduled flight date N. Since it is below the threshold, any flight application is permitted. On the other hand, regarding the scheduled flight date N + 1, since the total estimated interference amount based on the flight application made earlier by the managers of the flight object 10, A, B, and C, is less than the threshold value, these flight applications are made. However, if the estimated interference amount based on the flight application made by the D person is added up, the estimated interference amount in the airspace exceeds the threshold, so the flight application of the D person is not permitted. Similarly, regarding the scheduled flight date N + 2, the flight application of Person D is not permitted.

In this way, a message prompting the change of conditions, including the approval or disapproval of the flight application, is transmitted from the aircraft flight management device 50 to the application terminal 60 or the result is transmitted in response to the request from the application terminal 60. Alternatively, it is transmitted by telephone, facsimile, etc. at the request of the administrator of the flight object 10. The administrator of the flight body 10 refers to this message, and if the flight application is not permitted, reviews the conditions included in the flight application and performs work such as re-applying for the flight.

According to the embodiment described above, the flight application is not permitted so that the reception power intensity from the wireless communication terminal mounted on the flying object increases, which causes a communication failure of other wireless communication terminals. That is, it is possible to suppress the flight of an air vehicle that interferes with the communication of other wireless communication terminals.

[Modification example]
The present invention is not limited to the embodiments described above. The above-described embodiment may be modified as follows. Further, the following two or more modified examples may be combined and carried out.

[Modification 1]
When the determination unit 53 compares the estimated interference amount calculated in the airspace and the date and time unit specified by the specific unit 52 with the threshold value, this threshold value does not have to be a fixed value, and the flight condition of the flying object 10 It may vary according to. For example, the magnitude of the obstacle caused by the wireless communication by the wireless communication terminal 20 included in the flying object 10 varies substantially depending on the number of other wireless communication terminals. For example, at night, in the mountains, at sea, etc., it is assumed that there are extremely few other wireless communication terminals, so that the obstacle caused by the wireless communication by the wireless communication terminal 20 included in the flying object 10 does not substantially matter. That is, in the airspace corresponding to such a date and time or region, the threshold value may be larger than that in other airspaces. That is, the determination unit 53 may change the threshold value according to the position or the date and time when determining whether or not the flight application is possible. The threshold value according to the position or the date and time is stored in the determination unit 53 as a database in advance.

In addition, for example, in areas where events such as concerts, exhibitions, and sports competitions are held, many users who have wireless communication terminals gather on the ground, so the airspace above such areas may interfere. Corresponds to the airspace that is likely to cause problems. That is, it is desirable that the above threshold value be smaller than that of other airspaces in the airspace above the area where events where many users gather on the ground are held. Therefore, when the determination unit 53 compares the magnitude of the communication-related obstacle specified by the specific unit 52 with the threshold value and determines whether or not the flight application is possible, the flight schedule position and the flight schedule included in the flight application are included. The threshold value may be changed according to the event scheduled to be held on the date and time. The threshold value according to the scheduled position and the scheduled date and time of the event to be held is stored in a database in advance in the determination unit 53.

[Modification 2]
The actual amount of interference in the radio base station 41 may be evaluated and analyzed to optimize the above threshold value. Since each wireless base station 41 can measure the amount of propagation delay with the wireless communication terminal 20 that is wirelessly connected, the aircraft flight management device 50 propagates from each wireless base station 41. Information on the amount of delay (that is, information corresponding to the measurement result of interference caused by wireless communication with the wireless communication terminal 20) is collected. That is, the flight body operation management device 50 has a magnitude of communication-related obstacle caused by communication between the radio communication terminal 20 and the radio base station of the flight body 10 at the scheduled flight position and the scheduled flight date and time included in the flight application. It is provided with a measurement result acquisition unit that acquires the result of measurement. Then, when the determination unit 53 compares the magnitude of the communication-related interference specified by the specific unit 52 with the threshold value and determines whether or not the flight application is possible, the determination unit 53 determines the measurement result acquired by the measurement result acquisition unit. Depending on the situation, an appropriate threshold value may be determined so that the amount of interference does not matter.

[Modification 3]
The flight object flight management device 50 manages the flight object 10 by combining the wireless communication speed and the number of wireless communication terminals 20 that are acceptable within the threshold of the estimated amount of interference at the scheduled flight position and the scheduled flight date and time related to the flight application. It may be presented to a person and the administrator may select from them. The combination of the wireless communication speed and the number of wireless communication terminals 20 that is acceptable within the threshold value of the interference estimation amount is the number of wireless communication terminals 20, the position coefficient, and the communication speed coefficient, which are described with reference to FIGS. 7 to 9. It can be specified from the relationship between the estimated interference amount and the threshold value. That is, in the flight vehicle operation management device 50, the wireless communication terminal 20 performs wireless communication at the scheduled flight position and the scheduled flight date and time included in the flight application based on the magnitude of the communication-related obstacle specified by the specific unit 52. Notification to notify the administrator of the flying object 10 of the communication plan specifying unit that specifies the range of the communication speed and the number of the wireless communication terminals 20 at the time, and the information about the specified communication speed range and the number of the wireless communication terminals 20. It may be provided with a part. Further, the communication plan specifying unit specifies the charge for the wireless communication terminal 20 to communicate at the scheduled flight position and the scheduled flight date and time included in the flight application, based on the magnitude of the communication-related obstacle specified by the specific unit. However, the notification unit may notify the flight object manager of information regarding the specified charge. For example, the notification unit tells the administrator of the aircraft 10 that "Recommended plan for you 1: Maximum speed 3 Mbps ~ 1 Mbps x 3 units and price: *** yen""Recommended plan for you 2: Maximum A message such as "The speed is 1 Mbps or less x 30 units and the price is +++ yen" is generated and sent to the application terminal 60. Charges according to the scheduled flight position and scheduled flight date and time are stored in a database in advance in the communication plan identification unit.

[Other variants]
The block diagram used in the description of the above embodiment shows a block of functional units. These functional blocks (components) are realized by any combination of hardware and / or software. Further, the means for realizing each functional block is not particularly limited. That is, each functional block may be realized by one physically and / or logically coupled device, or directly and / or indirectly by two or more physically and / or logically separated devices. (For example, wired and / or wireless) may be connected and realized by these a plurality of devices.

Each aspect / embodiment described herein includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA. (Registered Trademarks), GSM (Registered Trademarks), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand), It may be applied to systems utilizing Bluetooth®, other suitable systems and / or next-generation systems extended based on them.

The order of the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in the present specification may be changed as long as there is no contradiction. For example, the methods described herein present elements of various steps in an exemplary order, and are not limited to the particular order presented.
Each aspect / embodiment described in the present specification 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 one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.

The information or parameters described in the present specification may be represented by an absolute value, a relative value from a predetermined value, or another corresponding information. For example, the radio resource may be indexed.

The names used for the above parameters are not limited in any way. Further, mathematical formulas and the like using these parameters may differ from those expressly disclosed herein. Since the various channels (eg, PUCCH, PDCCH, etc.) and information elements (eg, TPC, etc.) can be identified by any suitable name, the various names assigned to these various channels and information elements are in any respect. However, it is not limited.

The terms "determining" and "determining" as used herein may include a wide variety of actions. "Judgment" and "decision" are, for example, judgment, calculation, computing, processing, deriving, investigating, looking up (for example, table). , Searching in a database or another data structure), ascertaining can be regarded as "judgment" or "decision". Further, "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 "determined" or "determined". 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".

The present invention may be provided as an information processing method including processing steps performed in the wireless communication terminal 20 or the flight vehicle operation management device 50. Further, the present invention may be provided as a program executed by the wireless communication terminal 20 or the aircraft flight management device 50. Such a program may be provided in the form of being recorded on a recording medium such as an optical disk, or may be provided in the form of being downloaded to a computer via a network such as the Internet and being installed and made available. It is possible.

Software, instructions, etc. may be transmitted and received via a transmission medium. For example, the software uses wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave to websites, servers, or other When transmitted from a remote source, these wired and / or wireless technologies are included within the definition of transmission medium.

The information, signals, etc. described herein 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 are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.

The terms described herein and / or the terms necessary for understanding the present specification may be replaced with terms having the same or similar meanings. For example, the channel and / or symbol may be a signal. Also, the signal may be a message. Further, the component carrier (CC) may be referred to as a carrier frequency, a cell, or the like.

Any reference to elements using designations such as "first", "second" as used herein does not generally limit the quantity or order of those elements. These designations can be used herein as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted there, or that the first element must somehow precede the second element.

The "means" in the configuration of each of the above devices may be replaced with a "part", a "circuit", a "device" and the like.

As long as "inclusion," "comprising," and variations thereof are used herein or in the claims, these terms are as comprehensive as the term "comprising." Intended to be targeted. Furthermore, the term "or" as used herein or in the claims is intended not to be an exclusive OR.

Throughout this disclosure, if articles are added by translation, for example a, an, and the in English, unless the context clearly indicates that these articles are not. It shall include more than one.

Although the present invention has been described in detail above, it is clear to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be implemented as modifications and modifications without departing from the spirit and scope of the invention as defined by the claims. Therefore, the description of the present specification is for the purpose of exemplification and does not have any limiting meaning to the present invention.

1: Flight management system, 10: Aircraft, 20, 30: Wireless communication terminal, 2001: Processor, 2002: Memory, 2003: Storage, 2004: Communication device, 2005: Input device, 2006: Output device, 40: Network, 41: Radio base station, 50: Aircraft flight management device, 51: Application acquisition unit, 52: Specific unit, 53: Judgment unit, 5001: Processor, 5002: Memory, 5003: Storage, 5004: Communication device, 60: Application Terminal.

Claims (10)

The application acquisition department that acquires flight applications including the scheduled flight position and scheduled flight date and time of an aircraft having a wireless communication terminal,
At the scheduled flight position and scheduled flight date and time included in the acquired flight application, a specific unit that identifies the magnitude of the obstacle related to wireless communication caused by the wireless communication between the wireless communication terminal and the wireless base station of the aircraft. ,
An information processing device including a judgment unit for determining whether or not to apply for flight based on the result specified by the specific unit. The planned flight position is a position in the airspace unit separated by a predetermined standard.
The information processing device according to claim 1, wherein the specific unit specifies the magnitude of a failure related to the wireless communication in each of the airspaces. The planned flight position is a position in the airspace unit separated by a predetermined standard.
The claim is characterized in that the specific unit assigns a weight to the number of wireless communication terminals possessed by an air vehicle scheduled to fly in the airspace to specify the magnitude of an obstacle related to the wireless communication. 1. The information processing apparatus according to 1. The specific unit corresponds to the number of radio communication terminals possessed by the air vehicle scheduled to fly in the airspace, and the distance between the radio communication terminal possessed by each air vehicle and each radio base station. The information processing device according to claim 2, wherein a weight is given to specify the magnitude of a failure related to the wireless communication. The flight application includes the scheduled communication speed of wireless communication executed by the wireless communication terminal of the flying object.
The specific unit assigns a weight to the number of wireless communication terminals possessed by each flying object scheduled to fly in the airspace according to the scheduled communication speed of the wireless communication terminal possessed by each said flying object. The information processing device according to claim 2 or 3, wherein the magnitude of the failure related to the wireless communication is specified. The specific unit relates to the radio communication based on the distance between the radio base station at the highest position on the ground corresponding to each of the airspaces and the radio communication terminal of the flying object scheduled to fly in the airspace. The information processing apparatus according to any one of claims 2 to 4, wherein the magnitude of the obstacle is specified. The determination unit determines whether or not the flight application is possible by comparing the magnitude of the obstacle related to wireless communication identified by the identification unit with the threshold value that fluctuates according to the flight conditions of the flying object. The information processing apparatus according to any one of claims 1 to 6. Measurement to acquire the result of measuring the magnitude of the obstacle related to wireless communication caused by the wireless communication between the wireless communication terminal and the wireless base station of the flying object at the scheduled flight position and the scheduled flight date and time included in the flight application. Equipped with a result acquisition unit
When the determination unit compares the magnitude of the obstacle related to wireless communication specified by the identification unit with the threshold value and determines whether or not the flight application is possible, the determination unit determines the threshold value according to the acquired measurement result. The information processing apparatus according to any one of claims 1 to 7, wherein the information processing apparatus is determined. Based on the magnitude of the obstacle related to wireless communication specified by the specific unit, the communication speed when the wireless communication terminal of the flying object performs wireless communication at the scheduled flight position and the scheduled flight date and time included in the flight application. Communication plan identification unit that specifies the range of the above and the number of the wireless communication terminals,
The information processing according to any one of claims 1 to 7, further comprising a notification unit for notifying the administrator of the flying object of information regarding the specified communication speed range and the number of wireless communication terminals. Device. In the communication plan specifying unit, the wireless communication terminal of the flying object communicates at the scheduled flight position and the scheduled flight date and time included in the flight application based on the magnitude of the obstacle related to the wireless communication specified by the specific unit. Identify the charges for what you do and
The information processing device according to claim 9, wherein the notification unit notifies the manager of the flying object of information regarding the specified charge.

Images