Aircraft management system and aircraft management method

Abstract

To prevent situations where no alternative landing site can be found in the event of an unforeseen incident occurring during flight.SOLUTION: An aircraft management system 1 includes: a nearby landing-capable port search unit 12 that searches for nearby landing-capable ports that are located within a determined distance from a route R1 of an aircraft 100 and can accept a landing within a specified time from a route passage timing; and an alternative candidate port determination unit 13 that determines an extracted nearby landing-capable port as an alternative candidate port for emergency landing when the nearby landing-capable port is extracted by the nearby landing-capable port search unit 12, and modifies a route of the aircraft 100 to a destination to a route where a nearby landing-capable port can be extracted when no nearby landing-capable port is extracted, and determines the nearby landing-capable port extracted for the modified route as an alternative candidate port.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an aircraft management system and an aircraft management method. [Background technology]

[0002] A technology has been disclosed that, in preparation for the occurrence of a malfunction in an aircraft during flight, enables the malfunctioning aircraft to land at an alternative landing site by preparing alternative landing sites and alternate routes for the original destination (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] US Patent Application Publication No. 2022 / 0111962 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional system does not check the current status of alternative landing sites. Therefore, when an aircraft that has experienced a malfunction attempts to land at a pre-planned alternative landing site, it may find that the alternative landing site is unavailable. In this case, the aircraft that has experienced the malfunction is unable to land at the alternative landing site, which is inconvenient. The present application has been made in view of this background, and aims to provide an aircraft management system and an aircraft management method that can prevent a situation in which an alternative landing site cannot be found for an aircraft in flight when an unforeseen event such as a malfunction of the aircraft or bad weather occurs. [Means for solving the problem]

[0005] As a first aspect for achieving the above object, there is provided a flight situation recognition unit that recognizes the flight situation of an aircraft flying on a route to a destination point, a nearby available landing port search unit that recognizes a route passage timing, which is the timing when the aircraft flies on the route, based on the recognition result of the flight situation of the aircraft by the flight situation recognition unit, and searches for a nearby available landing port that is located within a predetermined judgment distance from the route and is a takeoff / landing port that can accept a landing within a predetermined time from the route passage timing, and a nearby available landing port search unit that extracts the nearby available landing port. and an alternative candidate port determination unit that, when the nearby possible landing port search unit has not extracted the nearby possible landing port, changes the route of the aircraft to the destination point to a route that will allow the nearby possible landing port to be extracted by the nearby possible landing port search unit, and determines the nearby possible landing port extracted by the nearby possible landing port search unit for the changed route as the alternative candidate port.

[0006] In the above aircraft management system, the flight situation recognition unit may repeatedly execute a process of recognizing the flight situation of the aircraft while the aircraft is in flight, the nearby landing port search unit may repeatedly execute a process of searching for the nearby landing port based on the recognition result of the flight situation of the aircraft by the flight situation recognition unit, and the alternative candidate port determination unit may repeatedly execute a process of determining the alternative candidate port depending on whether or not the nearby landing port has been extracted by the nearby landing port search unit.

[0007] In the above aircraft management system, the flight situation recognition unit may recognize the flight situation including the level of malfunction occurring in the aircraft, and the nearby landing port search unit may be configured to change the judgment distance depending on the level of malfunction occurring in the aircraft recognized by the flight situation recognition unit.

[0008] In the above-mentioned aircraft management system, the flight situation recognition unit may recognize the flight situation including the remaining flight distance of the aircraft, and the nearby landing port search unit may be configured to change the judgment distance according to the remaining flight distance of the aircraft recognized by the flight situation recognition unit.

[0009] The above-mentioned aircraft management system may be configured to include a flight interference factor recognition unit that recognizes whether or not a flight interference factor has occurred that will prevent the aircraft from flying to the destination point, and an emergency landing response unit that, when the flight interference factor recognition unit recognizes that the flight interference factor has occurred, changes the route of the aircraft to an emergency route toward the alternative candidate port.

[0010] The aircraft management system may be configured to include an alternative transportation means information providing unit that provides information on alternative transportation means from the alternative candidate port to a specified area where the destination point is located when the emergency landing response unit changes the route of the aircraft to the emergency route.

[0011] As a second aspect for achieving the above object, there is provided an aircraft management method executed by a computer, the method comprising: a flight situation recognition step for recognizing a flight situation of an aircraft flying on a route to a destination point; a nearby available landing port search step for recognizing a route passing timing, which is the timing when the aircraft flies on the route, based on a recognition result of the flight situation of the aircraft by the flight situation recognition step, and searching for a nearby available landing port that is located within a predetermined judgment distance from the route and is capable of accepting landing within a predetermined time from the route passing timing; an alternative candidate port determination step of, when the nearby possible landing port is extracted, determining the extracted nearby possible landing port as an alternative candidate port to respond to an emergency landing of the aircraft, and, when the nearby possible landing port is not extracted by the nearby possible landing port search step, changing the route to the destination point of the aircraft to a route from which the nearby possible landing port is extracted by the nearby possible landing port search step, and determining the nearby possible landing port extracted by the nearby possible landing port search step as the alternative candidate port for the changed route. [Effects of the Invention]

[0012] The above-mentioned aircraft management system and aircraft management method can prevent a situation in which an aircraft in flight is unable to find an alternative landing site in the event of an unforeseen incident such as a malfunction of the aircraft or bad weather. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a configuration diagram of an aircraft management system. [Figure 2] FIG. 2 is an explanatory diagram of the process of changing the route of an aircraft so as to secure an alternative candidate port. [Figure 3] FIG. 3 is a flowchart of the process of determining an alternative candidate port. DETAILED DESCRIPTION OF THE INVENTION

[0014] [1. Aircraft Management System Configuration] The configuration of the aircraft management system 1 of this embodiment will be described with reference to Figures 1 and 2. With reference to Figure 1, the aircraft management system 1 monitors the flight status of an aircraft 100 flying along a route R1 from a departure point Ps to a destination point Pd, and executes processing to determine an alternative candidate port to respond to an emergency landing due to an unforeseen event.

[0015] The aircraft 100 is, for example, an eVTOL (Electric Vertical Take-Off and Landing aircraft). The aircraft management system 1 is a computer system including a processor 10, a memory 20, a communication unit 30, etc. The processor 10 corresponds to the computer in the present disclosure. The aircraft management system 1 communicates with the aircraft 100, a takeoff and landing port management system 210, a transportation information server 220, a weather information server 230, etc. via a communication network 200 using the communication unit 30.

[0016] The takeoff and landing port management system 210 recognizes the usage status of multiple takeoff and landing ports located in the management area including route R1 by communicating with management systems installed at each takeoff and landing port, and records usage status data showing the real-time usage status of each takeoff and landing port in a takeoff and landing port DB (database) 211 as needed. The weather information server 230 provides weather information for the target area including route R1. The transportation information server 220 provides information on transportation operating within the target area including route R1.

[0017] The memory 20 of the aircraft management system 1 stores a program 21 for controlling the aircraft management system 1 and a flight operation DB 22 that records flight information (flight route, flight schedule, etc.) of aircraft whose operations are managed by the aircraft management system 1. By reading and executing the program 21, the processor 10 functions as a flight situation recognition unit 11, a nearby landing port search unit 12, an alternative candidate port determination unit 13, a flight interference factor recognition unit 14, an emergency landing response unit 15, and an alternative transportation means information provision unit 16.

[0018] The processing executed by the flight situation recognition unit 11 corresponds to the flight situation recognition step in the aircraft management method of the present disclosure, the processing executed by the nearby landing port search unit 12 corresponds to the nearby landing port search step in the aircraft management method of the present disclosure, and the processing executed by the alternative candidate port determination unit 13 corresponds to the alternative candidate port determination step in the aircraft management method of the present disclosure.

[0019] The flight situation recognition unit 11 receives flight situation information Fsi transmitted from the aircraft 100 and recognizes the flight situation of the aircraft 100. The flight situation information Fsi includes the route R1 to the destination point Pd of the aircraft 100, the current position and flight speed of the aircraft 100, the aircraft status of the aircraft 100 (whether or not there is a malfunction, and if there is a malfunction, the level of the malfunction), the remaining flight distance of the aircraft 100, the weather in the flight area of ​​the aircraft 100, etc. The flight situation recognition unit 11 records the recognized information on the flight situation of the aircraft 100 in the flight operation DB 22.

[0020] The nearby possible landing port search unit 12 sets a plurality of check positions Pc11, Pc12, Pc13, and Pc14 that the aircraft 100 will pass through in the future, based on the route R1 to the destination point Pd of the aircraft 100, the current position Pp, the flight speed, etc., recognized by the flight situation recognition unit 11. The nearby possible landing port search unit 12 then searches for a nearby possible landing port, which is a takeoff or landing port that is located within a determination distance from each check position and can accept the landing of the aircraft 100 within a predetermined time (for example, within several tens of minutes to several hours) from the time when the aircraft 100 passes the check position.

[0021] The nearby possible landing port search unit 12 accesses the takeoff and landing port management system 210 and searches for nearby possible landing ports for each check position by referring to the takeoff and landing port DB 211. Note that the nearby possible landing port search unit 12 may communicate with the management system installed at each takeoff and landing port to recognize the usage status of each takeoff and landing port, thereby determining whether or not to accept the landing of the aircraft 100 at each takeoff and landing. Figure 1 illustrates an example in which nearby possible landing ports Cp11, Cp12, Cp13, and Cp14 are extracted from search areas Ar11 to Ar14 within the judgment distance for each check position Pc11 to Pc14.

[0022] Here, the check positions are set so that the search areas of adjacent check positions overlap, thereby maintaining a situation in which a nearby possible landing port is always present within a judgment distance from the aircraft 100 while the aircraft 100 is heading toward the destination point Pd. Note that while four check positions Pc11 to Pc14 are shown as an example in Figure 1, the number of set check positions may be changed as appropriate depending on the distance of the route R1, the judgment distance, etc.

[0023] If nearby possible landing ports are extracted by nearby possible landing port search unit 12 for all check positions Pc11 to Pc14, alternative candidate port determination unit 13 determines the extracted nearby possible landing ports as alternative candidate ports in preparation for an emergency landing of aircraft 100. On the other hand, if nearby possible landing port search unit 12 does not extract nearby possible landing ports for any of the check positions, alternative candidate port determination unit 13 changes the route of aircraft 100 heading towards destination point Pd to a route that extracts nearby possible landing ports for all check positions.

[0024] 2 illustrates a situation in which aircraft 100 flies along route R1 and approaches check position Pc12, and the nearby landing port Cp12, which had been determined as an alternative candidate port, becomes unable to accept a landing. In this case, the alternative candidate port determination unit 13 changes the route of aircraft 100 to route R2, as indicated by arrow Y, for all check positions Pc22, Pc23, and Pc23, from which nearby landing port search unit 12 extracts nearby landing ports.

[0025] For route R2, nearby landing candidate ports Cp22, Cp23, and Cp24 are extracted from search areas Ar22, Ar23, and Ar24 of check positions Pc22, Pc23, and Pc24, respectively, and alternative candidate port determination unit 13 determines nearby landing candidate ports Cp22, Cp23, and Cp24 as alternative candidate ports. This makes it possible to maintain a state in which alternative candidate ports available for landing that are located within the judgment distance are secured for aircraft 100 flying toward destination point Pd. Alternative candidate port determination unit 13 records information about the changed route in flight operation DB 22.

[0026] The flight interference factor recognition unit 14 recognizes flight interference factors that may interfere with the flight of the aircraft 100 to the destination, such as a malfunction of the aircraft 100 or bad weather, based on the flight status information Fsi transmitted from the aircraft 100, the weather information Wsi of the area in which the aircraft 100 is flying transmitted from the weather information server 230, etc.

[0027] When the emergency landing response unit 15 determines that it is difficult for the aircraft 100 to fly to its destination due to a flight interference factor recognized by the flight interference factor recognition unit 14, it transmits emergency response information to the aircraft 100 instructing it to change its route to an emergency route from the current position of the aircraft 100 to the nearest alternative candidate port and to land at the alternative candidate port. This makes it possible to quickly arrange for an emergency landing at the alternative candidate port when an unexpected flight interference factor occurs for the aircraft 100.

[0028] When the emergency landing response unit 15 changes the route of the aircraft 100 to an emergency route to an alternative candidate port, the alternative transportation information provider 16 accesses the transportation information server 220 to obtain the transportation information Tri, thereby searching for an alternative transportation means for traveling from the alternative candidate port to the vicinity of the destination. Then, the alternative transportation information provider 16 provides information on alternative transportation means that can be used to travel from the alternative candidate port to the vicinity of the destination to passengers of the aircraft 100.

[0029] FIG. 1 illustrates an example in which the route R1 of the aircraft 100 is changed to an emergency route Re heading toward a nearby possible landing port Cp12 that has been determined as an alternative candidate port. In this case, the alternative transportation information provider 16 transmits, for example, information about ground transportation 110 heading from the nearby possible landing port Cp12 to a predetermined point Px within an area Ard that includes the destination point Pd, to a mobile device or the like used by the passenger. The ground transportation 110 may be public transportation such as a bus or train, a shared vehicle, or the like. In addition to ground transportation, the alternative transportation may also transmit information about an alternative aircraft that can be arranged to the mobile device or the like.

[0030] [2. Determining alternative candidate ports] The procedure for the process of determining an alternative candidate port executed by the aircraft management system 1 for the aircraft 100 in flight shown in Figure 1 will be described according to the flowchart shown in Figure 3. While the aircraft 100 is flying towards the destination point Pd, the aircraft management system 1 repeatedly executes the process according to the flowchart shown in Figure 3 in a predetermined control cycle.

[0031] 3, the flight situation recognition unit 11 receives flight situation information Fsi transmitted from the aircraft 100 and recognizes the route, current position, and flight speed of the aircraft 100. In the following step S2, the nearby landing port search unit 12 recognizes the timing at which the aircraft 100 passes through each of the check positions Pc11 to Pc14 set on the route R1 from the departure point Ps of the aircraft 100 to the destination point Pd.

[0032] By the loop processing of the next steps S3 to S11, an alternative candidate port for emergency landing is determined for each check position Pc11 to Pc14, and for each check position after the change if the route of the aircraft 100 is changed. Hereinafter, the check position that is the target of the processing in steps S4 to S8 is referred to as the target check position.

[0033] In step S4, nearby possible landing port search unit 12 searches for a takeoff or landing port located within a judgment distance from the target check position, with reference to takeoff or landing port DB 211 of takeoff or landing port management system 210. If a takeoff or landing port located within the judgment distance from the target check position has been extracted, nearby possible landing port search unit 12 proceeds to step S6, and if no takeoff or landing port located within the judgment distance from the target check position has been extracted, proceeds to step S9. Note that if the route of aircraft 100 to the destination point has been determined so that a takeoff or landing port is located within the judgment distance from each check position, the processing of steps S4 and S5 is unnecessary.

[0034] In step S6, nearby landing port search unit 12 refers to takeoff and landing port DB 211 and determines whether the extracted takeoff and landing port is in a state where it can accept the landing of aircraft 100. In the following step S7, if the extracted takeoff and landing port is capable of accepting a landing (if a nearby landing port has been extracted), nearby landing port search unit 12 proceeds to step S8, and if the extracted takeoff and landing port is not capable of accepting a landing, it proceeds to step S9.

[0035] In step S8, the alternative candidate port determination unit 13 determines, as an alternative candidate port for emergency landing, the takeoff and landing port (nearby landing port) extracted by the nearby landing port search unit 12. Also, in step S9, the alternative candidate port determination unit 13 changes the route of the aircraft 100 to a route that allows the nearby landing port search unit 12 to extract, for all check positions, a takeoff and landing port (nearby landing port) that is located within a judgment distance from the check position and that can accept the landing of the aircraft 100, as described above with reference to Figure 2.

[0036] In the next step S10, the alternative candidate port determination unit 13 determines the extracted nearby landing possible port for the changed route as an alternative candidate port for emergency landing. When the route of the aircraft 100 is changed by the processing of step S9, the alternative candidate port determination unit 13 transmits route change information instructing the route change to the aircraft 100, and instructs the aircraft 100 to change the route.

[0037] After the route of the aircraft 100 is changed in step S9, the aircraft management system 1 executes the process according to the flowchart in Fig. 3 for the changed route. As a result, if a situation arises in which a nearby possible landing port cannot be extracted for the changed route, the route can be further changed to maintain a state in which an alternative candidate port is secured within a determined distance from the current position of the aircraft 100 while the aircraft 100 is flying toward the destination point Pd.

[0038] 3. Other Embodiments In the above embodiment, when a malfunction occurs in the aircraft 100 but the level of the malfunction is less than the level at which the emergency landing response unit 15 determines that flying to the destination is difficult, and the aircraft 100 continues flying to the destination point Pd, the nearby possible landing port search unit 12 may change the judgment distance when searching for a nearby possible landing port, depending on the level of the malfunction recognized from the flight situation information Fsi by the flight situation recognition unit 11. For example, the higher the level of the malfunction (the greater the impact on the flight of the aircraft 100), the shorter the judgment distance may be.

[0039] In the above embodiment, the nearby landing port search unit 12 may change the determination distance when searching for a nearby landing port, depending on the remaining flight distance of the aircraft 100 recognized by the flight situation recognition unit 11. For example, if there is a margin in the remaining flight distance of the aircraft 100, the determination distance may be increased. The remaining flight distance of the aircraft 100 is recognized based on the remaining amount of energy for driving the aircraft 100 (fuel, battery charge, etc.), the weather, etc.

[0040] In the above embodiment, the aircraft management system of the present disclosure is configured by the aircraft management system 1, which is a computer system that communicates with the aircraft 100. However, the aircraft management system of the present disclosure may also be configured to be mounted on the aircraft 100. In this case, the aircraft management system mounted on the aircraft 100 communicates with the takeoff and landing port management system or a management system installed at each takeoff and landing port to search for nearby ports where landing is possible. Furthermore, part of the configuration of the aircraft management system 1 may be provided on the aircraft 100.

[0041] 2 is a schematic diagram showing the functional configuration of the aircraft management system 1 divided by main processing content to facilitate understanding of the present invention, but the configuration of the aircraft management system 1 may be divided in other ways. Furthermore, the processing of each component may be executed by one hardware unit or multiple hardware units. Furthermore, the processing of each component shown in FIG. 3 may be executed by one program or multiple programs.

[0042] 4. Configurations supported by the above embodiments The above embodiment is a specific example of the following configuration.

[0043] (Configuration 1) An aircraft management system comprising: a flight situation recognition unit that recognizes the flight situation of an aircraft flying on a route to a destination point; a nearby landing port search unit that recognizes the route passage timing, which is the timing when the aircraft flies on the route, based on the recognition result of the flight situation of the aircraft by the flight situation recognition unit, and searches for a nearby landing port that is a takeoff or landing port that is located within a predetermined judgment distance from the route and is capable of accepting a landing within a predetermined time from the route passage timing; and an alternative candidate port determination unit that, when the nearby landing port search unit extracts the nearby landing port, determines the extracted nearby landing port as an alternative candidate port for responding to an emergency landing of the aircraft, and, when the nearby landing port search unit does not extract the nearby landing port, changes the route of the aircraft to the destination point to a route that will result in the nearby landing port being extracted by the nearby landing port search unit, and determines the nearby landing port extracted by the nearby landing port search unit for the changed route as the alternative candidate port. According to the aircraft management system of configuration 1, for an aircraft flying on a route to a destination, the transit timing of the aircraft along the route is recognized, and a nearby possible landing port that is located within a predetermined distance from the route and can accept a landing within a predetermined time from the route transit timing is searched for. If a nearby possible landing port is identified, the nearby possible landing port is determined as an alternative candidate port for responding to an emergency landing. If a nearby possible landing port is not identified, the aircraft's route is changed to a route that identifies a nearby possible landing port. This makes it possible to secure an alternative candidate port for the aircraft in flight, thereby preventing a situation in which an alternative landing site cannot be found for the aircraft in flight in the event of an unforeseen event such as an aircraft malfunction or bad weather.

[0044] (Configuration 2) An aircraft management system as described in Configuration 1, wherein the flight situation recognition unit repeatedly executes a process of recognizing the flight situation of the aircraft while the aircraft is in flight, the nearby landing port search unit repeatedly executes a process of searching for the nearby landing port based on the recognition result of the flight situation of the aircraft by the flight situation recognition unit, and the alternative candidate port determination unit repeatedly executes a process of determining the alternative candidate port depending on whether or not the nearby landing port is extracted by the nearby landing port search unit. According to the aircraft management system of configuration 2, by repeatedly executing the process of searching for nearby ports where landing is possible as the aircraft moves, it is possible to update the alternative candidate ports in response to changes in the aircraft's flight conditions or when the takeoff / landing port that had been determined as an alternative candidate port becomes unable to accept landings.

[0045] (Configuration 3) An aircraft management system as described in Configuration 1 or Configuration 2, wherein the flight situation recognition unit recognizes the flight situation including the level of malfunction occurring in the aircraft, and the nearby landing port search unit changes the judgment distance depending on the level of malfunction occurring in the aircraft recognized by the flight situation recognition unit. According to the aircraft management system of configuration 3, it is possible to determine alternative candidate ports where an emergency landing can be made depending on the level of the failure occurring in the aircraft.

[0046] (Configuration 4) An aircraft management system described in any one of configurations 1 to 3, wherein the flight situation recognition unit recognizes the flight situation including the remaining flight distance of the aircraft, and the nearby landing port search unit changes the judgment distance depending on the remaining flight distance of the aircraft recognized by the flight situation recognition unit. According to the aircraft management system of configuration 4, it is possible to determine an alternative candidate port where an emergency landing is possible depending on the remaining flight distance of the aircraft.

[0047] (Configuration 5) An aircraft management system described in any one of configurations 1 to 4, comprising a flight interference factor recognition unit that recognizes whether or not a flight interference factor has occurred that will prevent the aircraft from flying to the destination point, and an emergency landing response unit that changes the route of the aircraft to an emergency route toward the alternative candidate port when the flight interference factor recognition unit recognizes that the flight interference factor has occurred. According to the aircraft management system of configuration 5, when an aircraft flight disruption occurs, the safe flight of the aircraft can be ensured by changing to an emergency route heading toward an alternative candidate port.

[0048] (Configuration 6) An aircraft management system according to any one of configurations 1 to 5, comprising an alternative transportation means information providing unit that provides information on alternative transportation means from the alternative candidate port to a specified area where the destination point is located when the route of the aircraft is changed to the emergency route by the emergency landing response unit. According to the aircraft management system of configuration 6, when an aircraft lands at an alternative candidate port that is different from the original destination point, information on alternative transportation means can be provided to mobile devices used by aircraft passengers and to the management system of the transportation company operating the aircraft, thereby supporting the use or arrangement of alternative transportation means to the vicinity of the destination point.

[0049] (Configuration 7) An aircraft management method executed by a computer, comprising: a flight situation recognition step for recognizing the flight situation of an aircraft flying a route to a destination point; a nearby landing port search step for recognizing a route passage timing, which is the timing at which the aircraft flies the route, based on the recognition result of the flight situation of the aircraft by the flight situation recognition step, and searching for a nearby landing port that is located within a predetermined judgment distance from the route and is capable of accepting landing within a predetermined time from the route passage timing; and a nearby landing port search step for searching for a nearby landing port that is located within a predetermined judgment distance from the route and is capable of accepting landing within a predetermined time from the route passage timing. an alternative candidate port determination step for, when a possible nearby landing port is extracted, determining the extracted nearby possible landing port as an alternative candidate port to respond to an emergency landing of the aircraft, and, when the nearby possible landing port is not extracted by the nearby possible landing port search step, changing the route to the destination point of the aircraft to a route from which the nearby possible landing port is extracted by the nearby possible landing port search step, and determining the nearby possible landing port extracted by the nearby possible landing port search step as the alternative candidate port for the changed route. By executing the aircraft management method of the seventh aspect by a computer, the same effects as those of the aircraft management system of the first aspect can be obtained. [Explanation of symbols]

[0050] 1...aircraft management system, 10...processor, 11...flight situation recognition unit, 12...nearby landing port search unit, 13...alternative candidate port determination unit, 14...flight disruption factor recognition unit, 15...emergency landing response unit, 16...alternative transportation means information provision unit, 20...memory, 21...program, 22...flight operation DB, 30...communication unit, 100...aircraft, 110...alternative transportation means, 200...communication network, 210...takeoff and landing port management system, 211...takeoff and landing port DB, 220...transportation information server, 230...weather information server.

Claims

1. a flight situation recognition unit that recognizes the flight situation of an aircraft flying along a route to a destination point; a nearby landing port search unit that recognizes a route passing timing, which is the timing when the aircraft flies along the route, based on the recognition result of the flight status of the aircraft by the flight status recognition unit, and searches for a nearby landing port that is located within a predetermined judgment distance from the route and is capable of accepting a landing within a predetermined time from the route passing timing; an alternative candidate port determination unit that, when the nearby possible landing port searching unit extracts the nearby possible landing port, determines the extracted nearby possible landing port as an alternative candidate port for dealing with an emergency landing of the aircraft, and, when the nearby possible landing port searching unit does not extract the nearby possible landing port, changes the route to the destination point of the aircraft to a route that will extract the nearby possible landing port by the nearby possible landing port searching unit, and determines the nearby possible landing port extracted by the nearby possible landing port searching unit for the changed route as the alternative candidate port; An aircraft management system comprising:

2. the flight situation recognition unit repeatedly executes a process of recognizing a flight situation of the aircraft during a flight of the aircraft, the nearby available landing port search unit repeatedly executes a process of searching for the nearby available landing port based on a recognition result of the flight situation of the aircraft by the flight situation recognition unit; The alternative candidate port determination unit repeatedly executes a process of determining the alternative candidate port depending on whether the nearby available landing port search unit has extracted the nearby available landing port. The aircraft management system of claim 1 .

3. the flight situation recognition unit recognizes the flight situation including the level of a malfunction occurring in the aircraft; The nearby available landing port search unit changes the determination distance depending on the level of a malfunction occurring in the aircraft recognized by the flight situation recognition unit.

3. An aircraft management system according to claim 1 or claim 2.

4. The flight situation recognition unit recognizes the flight situation including a remaining flight distance of the aircraft, The nearby landing port search unit changes the determination distance according to the remaining flight distance of the aircraft recognized by the flight situation recognition unit.

3. An aircraft management system according to claim 1 or claim 2.

5. a flight interference factor recognition unit that recognizes whether or not a flight interference factor has occurred that interferes with the flight of the aircraft to the destination point; an emergency landing response unit that changes the route of the aircraft to an emergency route heading toward the alternative candidate port when the flight interference factor recognition unit recognizes that the flight interference factor has occurred; The aircraft management system according to claim 1 or 2, comprising:

6. and an alternative transportation means information providing unit that provides information on alternative transportation means from the alternative candidate port to a predetermined area where the destination point is located when the route of the aircraft is changed to the emergency route by the emergency landing response unit.

6. The aircraft management system of claim 5.

7. 1. A computer-implemented method for aircraft management, comprising: a flight situation recognition step of recognizing a flight situation of an aircraft flying a route to a destination point; a nearby landing port search step of recognizing a route passage timing, which is the timing when the aircraft flies along the route, based on the recognition result of the flight status of the aircraft by the flight status recognition step, and searching for a nearby landing port that is located within a predetermined judgment distance from the route and is capable of accepting landing within a predetermined time from the route passage timing; an alternative candidate port determination step, when the nearby possible landing port is extracted by the nearby possible landing port search step, determining the extracted nearby possible landing port as an alternative candidate port for dealing with an emergency landing of the aircraft, and when the nearby possible landing port is not extracted by the nearby possible landing port search step, changing the route to the destination point of the aircraft to a route where the nearby possible landing port is extracted by the nearby possible landing port search step, and determining the nearby possible landing port extracted by the nearby possible landing port search step as the alternative candidate port for the changed route; An aircraft management method comprising:

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