A target off-block time collaborative management method and system

Abstract

The present invention discloses a target off-block time collaborative management method and system, including: calculating the coordinated off-block time DOBT of the flight based on the acquired flight information and flight type, the flight type includes the flight being a non-restricted flight without AIBT time, the flight being a non-restricted flight with AIBT time, and the flight being a restricted flight; determining the airport target off-block time A-TOBT based on the coordinated off-block time DOBT of the flight and the actual support capability of the airline; acquiring the estimated off-block time EOBT in real time, and comparing the estimated off-block time EOBT with the airport target off-block time A-TOBT, and updating the airport target off-block time A-TOBT; acquiring the calculated take-off time CTOT issued by air traffic control in real time, and calculating the deviation value between the airport target off-block time A-TOBT and the calculated take-off time CTOT, and generating a correction signal for the target off-block time TOBT when the deviation value is greater than a preset threshold. The target off-block time collaborative management method and system of the present application improves the work efficiency of management and reduces the probability of flight delays.

Description

Technical Field

[0001] The present invention relates to the technical field of air traffic management, and in particular to a target off-block time collaborative management method and system. Background Art

[0002] In order to achieve refined operation, improve flight operation efficiency, and strengthen collaborative management, the Civil Aviation Administration of China's Air Traffic Control Bureau uses the National Traffic Management System (hereinafter referred to as NTFM) throughout the country to comprehensively calculate and sort flight release times. NTFM will establish a data exchange mechanism with airlines and airports, and manage the flow of flights across the country through the flight plan data of each airline and the airport support resources. For restricted flights, the NTFM system will calculate and sort the flight release time (CTOT) according to the target off-block time (TOBT) reported by the airline, which is the allowed release time of the flight. In this way, the air traffic control unit queues the take-off time of the flight based on the completion of the target support of each flight, thereby achieving the effect of improving the efficiency of flight release in the airspace. However, from the perspective of actual flight operations, there are still some problems with the use of the above workflow method. For example, when a special situation occurs in the airspace during the current period, resulting in a backlog of flight releases, although the air traffic control NTFM system will calculate the CTOT time based on the TOBT time provided by the airline, the large number of backlogged flights will easily lead to a large difference between TOBT and CTOT, that is, TOBT will be much earlier than CTOT. If the airport and the airline still provide support for the flight according to the TOBT, it will cause passengers to wait too long on the plane, which will not only affect the passenger experience and easily cause mass incidents such as passenger complaints, but also consume a lot of energy and increase the operating costs of the airline if the aircraft carries passengers for too long. Another example is that since the progress of aircraft support work is easily affected by many factors, in the actual support work, the airline will inevitably revise the TOBT time provided in advance, but due to the complexity of the airspace, when the TOBT changes slightly, the updated CTOT provided by the NTFM system may be quite different from the original CTOT. For example, the TOBT provided to the NTFM system after revision may only be 10 minutes larger than the original value, but the new CTOT time calculated by the system after re-sequencing may be 1 to 2 hours larger than the original value. On the one hand, airlines are afraid of delays caused by CTOT jumps, and do not correct TOBT in a timely manner, resulting in a large amount of time waste. On the other hand, some flights that could have avoided delays by compressing the work progress are ultimately delayed due to excessive CTOT jumps caused by the revision of TOBT. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a target off-block time collaborative management method and system.

[0004] A target off-block time collaborative management method proposed in the present invention comprises the following steps:

[0005] S1. Calculate the coordinated off-block time DOBT of the flight based on the acquired flight information and flight type, where the flight type includes a non-restricted flight with no AIBT time, a non-restricted flight with AIBT time, and a restricted flight;

[0006] S2. Determine the airport target off-block time (A-TOBT) based on the flight's coordinated off-block time (DOBT) and the airline's actual support capability;

[0007] S3, obtaining the estimated off-block time EOBT in real time, comparing the estimated off-block time EOBT with the airport target off-block time A-TOBT, and updating the airport target off-block time A-TOBT;

[0008] S4. Obtain the calculated takeoff time CTOT issued by air traffic control in real time, and calculate the deviation between the airport target off-block time A-TOBT and the calculated takeoff time CTOT. When the deviation is greater than a preset threshold, generate a correction signal for the target off-block time TOBT;

[0009] S5. Correct the target off-block time TOBT based on the correction signal of the target off-block time TOBT.

[0010] Preferably, it also includes:

[0011] S6. Repeat steps S1 to S5 based on the revised target off-block time TOBT, and continuously monitor the airport target off-block time A-TOBT to determine the flight support sequence and flight release sequence.

[0012] Preferably, the flight information specifically includes: minimum stopover time MTT, variable taxi time VTT, estimated arrival time ETA, actual arrival time ATA, planned take-off time STD, actual block time AIBT, calculated take-off time CTOT, and flight number.

[0013] Preferably, step S1 specifically includes:

[0014] During the preset time period, when the flight type is a non-restricted flight and there is no AIBT time, the coordinated off-block time DOBT of the flight is Max{ETA / ATA+VTT+MTT,STD};

[0015] When the flight type is a non-restricted flight and there is an AIBT time, DOBT = Max{AIBT+MTT,STD};

[0016] When the flight type is specifically a restricted flight, DOBT = CTOT - VTT;

[0017] Among them, MTT is the minimum stop time; VTT is the variable taxi time; ETA is the estimated arrival time; ATA is the actual arrival time; STD is the planned take-off time; AIBT is the actual block time; CTOT is the calculated take-off time.

[0018] Preferably, step S2 specifically includes:

[0019] The target off-block time (A-TOBT) is determined based on the actual support capability of the airline so that the target off-block time (A-TOBT) is no later than the coordinated off-block time (DOBT).

[0020] Preferably, the real-time acquisition of estimated off-block time EOBT specifically includes:

[0021] When the flight actually lands, the EOBT acquisition process is as follows:

[0022] EOBT=Max{ATA+VTT+MTT, STD-N};

[0023] When the flight is parked at the stand and the on-block operation is completed, the process of obtaining the estimated off-block time (EOBT) is as follows:

[0024] EOBT=Max{AIBT+MTT,STD-N};

[0025] When the gate is open for boarding, the EOBT acquisition process is as follows:

[0026] EOBT = gate opening time + boarding time + time from boarding to door closing;

[0027] When the gate is closed, the EOBT acquisition process is as follows:

[0028] EOBT = Gate Closure Time + Time from the end of boarding to the closing of the cabin door;

[0029] Among them, MTT is the minimum stopover time; VTT is the variable taxi time; ETA is the estimated arrival time; ATA is the actual arrival time; STD is the scheduled take-off time; AIBT is the actual block time, and N is the airport custom time.

[0030] Preferably, comparing the estimated off-block time EOBT with the airport target off-block time A-TOBT and updating the airport target off-block time A-TOBT specifically includes:

[0031] When the EOBT is earlier than the A-TOBT, it means that the flight support is normal and can be completed according to the established A-TOBT.

[0032] When the estimated off-block time EOBT is later than the airport target off-block time A-TOBT, it means that the flight support is delayed and the airport target off-block time A-TOBT needs to be corrected and updated.

[0033] Preferably, the preset threshold is specifically 5 minutes; when the deviation value is greater than 5 minutes, a correction signal of the target off-block time TOBT is generated.

[0034] The present invention proposes a target off-block time collaborative management system, comprising:

[0035] A first processing module is used to calculate the coordinated off-block time DOBT of the flight based on the acquired flight information and flight type, where the flight type includes a non-restricted flight with no AIBT time, a non-restricted flight with AIBT time, and a restricted flight;

[0036] The second processing module is used to determine the airport target off-block time A-TOBT based on the coordinated off-block time DOBT of the flight and the actual support capability of the airline;

[0037] A comparison module is used to obtain the estimated off-block time EOBT in real time, compare the estimated off-block time EOBT with the airport target off-block time A-TOBT, and update the airport target off-block time A-TOBT;

[0038] The judgment module is used to obtain the calculated take-off time CTOT issued by the air traffic control in real time, and calculate the deviation between the airport target off-block time A-TOBT and the calculated take-off time CTOT. When the deviation is greater than a preset threshold, a correction signal of the target off-block time TOBT is generated;

[0039] The correction processing module is used to correct the target off-block time TOBT based on the correction signal of the target off-block time TOBT.

[0040] In the present invention, the proposed target off-block time collaborative management method and system introduces the A-TOBT index on the basis of the original TOBT to achieve standardized and refined flight support process control. By monitoring the A-TOBT index, flight delays can be predicted in advance, so that timely countermeasures can be taken. At the same time, by monitoring the A-TOBT at the corresponding key nodes, an effective evaluation can be made on whether the flight can perform CTOT, so that CTOT can be coordinated in the first time according to the evaluation results, which can avoid the situation of CTOT missing to the greatest extent and reduce the probability of flight delays. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A structural schematic diagram of a workflow of a target off-block time collaborative management method proposed by the present invention;

[0042] Figure 2 A structural schematic diagram of an implementation process of a target off-block time collaborative management method proposed by the present invention;

[0043] Figure 3 A schematic diagram of the system architecture of a target off-block time collaborative management system proposed by the present invention. DETAILED DESCRIPTION

[0044] Reference Figure 1-3 The present invention proposes a target off-block time collaborative management method, comprising the following steps:

[0045] S1. Calculate the coordinated off-block time DOBT of the flight based on the acquired flight information and flight type. The flight types include: a non-restricted flight with no AIBT time, a non-restricted flight with AIBT time, and a restricted flight.

[0046] In this embodiment, the flight information specifically includes: minimum stopover time MTT, variable taxi time VTT, estimated arrival time ETA, actual arrival time ATA, planned take-off time STD, actual block time AIBT, calculated take-off time CTOT, and flight number.

[0047] In this embodiment, an expression in the form of Max{A, B} means that when the values ​​of A and B exist at the same time, the maximum value is taken.

[0048] In this embodiment, step S1 specifically includes:

[0049] During the preset time period, when the flight type is specifically a non-restricted flight and there is no AIBT time, the coordinated off-block time DOBT of the flight is Max{ETA / ATA+VTT+MTT,STD}.

[0050] When the flight type is a non-restricted flight and there is an AIBT time, DOBT = Max{AIBT+MTT,STD};

[0051] When the flight type is specifically a restricted flight, DOBT = CTOT - VTT;

[0052] Among them, MTT is the minimum stop time; VTT is the variable taxi time; ETA is the estimated arrival time; ATA is the actual arrival time; STD is the planned take-off time; AIBT is the actual block time; CTOT is the calculated take-off time.

[0053] In this embodiment, for a single flight, the airline needs to submit the TOBT data of the flight to the air traffic control NTFM system 120 minutes before the scheduled departure time of the flight, and TOBT = STD-5min; the air traffic control NTFM system calculates the CTOT of the flight based on the TOBT published by the airline, and the flight needs to complete all support work before this time and be released according to this time; the airline calculates A-TOBT 90 minutes before the scheduled departure of the outbound flight, combined with the airline's existing support capabilities. The specific method of calculating A-TOBT is as follows: the airline uses the DOBT value calculated in the A-CDM system as a reference, and formulates A-TOBT in combination with the airline's actual support capabilities. The formulated A-TOBT time should be no later than the DOBT time provided by the A-CDM system.

[0054] S2. Determine the airport target off-block time (A-TOBT) based on the flight's coordinated off-block time (DOBT) and the airline's actual support capability.

[0055] In this embodiment, step S2 specifically includes:

[0056] The target off-block time (A-TOBT) is determined based on the actual support capability of the airline so that the target off-block time (A-TOBT) is no later than the coordinated off-block time (DOBT).

[0057] S3. Obtain the estimated off-block time EOBT in real time, compare the estimated off-block time EOBT with the airport target off-block time A-TOBT, and update the airport target off-block time A-TOBT.

[0058] In this embodiment, obtaining the estimated off-block time EOBT in real time specifically includes:

[0059] When the flight actually lands, the EOBT acquisition process is as follows:

[0060] EOBT=Max{ATA+VTT+MTT, STD-N};

[0061] When the flight is parked at the stand and the on-block operation is completed, the process of obtaining the estimated off-block time (EOBT) is as follows:

[0062] EOBT=Max{AIBT+MTT,STD-N};

[0063] When the gate is open for boarding, the EOBT acquisition process is as follows:

[0064] EOBT = gate opening time + boarding time + time from boarding to door closing;

[0065] When the gate is closed, the EOBT acquisition process is as follows:

[0066] EOBT = Gate Closure Time + Time from the end of boarding to the closing of the cabin door;

[0067] Among them, MTT is the minimum stopover time; VTT is the variable taxi time; ETA is the estimated arrival time; ATA is the actual arrival time; STD is the scheduled take-off time; AIBT is the actual block time, and N is the airport custom time.

[0068] In this embodiment, N is an airport customized parameter, and different airports can customize different parameters based on the actual taxiing conditions at the airport.

[0069] In this embodiment, the estimated off-block time EOBT is compared with the airport target off-block time A-TOBT, and the airport target off-block time A-TOBT is updated, specifically including:

[0070] When the EOBT is earlier than the A-TOBT, it means that the flight support is normal and can be completed according to the established A-TOBT.

[0071] When the estimated off-block time EOBT is later than the airport target off-block time A-TOBT, it means that the flight support is delayed and the airport target off-block time A-TOBT needs to be corrected and updated.

[0072] In this embodiment, when the flight actually starts to carry out support work at the airport, the relevant personnel of the airport and the airline use the EOBT calculated by the A-CDM system to compare and analyze with the A-TOBT, evaluate whether the aircraft can complete the support before the established A-TOBT time based on the existing support capabilities and resources, and make corresponding corrections to the A-TOBT in combination with the EOBT value. If the EOBT time is later than the A-TOBT, it means that there is a delay in the flight support process, and if the support continues at this support rhythm, it will not be possible to complete the support at the A-TOBT time. At this time, the staff needs to communicate with the on-site operating personnel to determine whether to speed up the support speed or to correct the A-TOBT according to the current EOBT situation.

[0073] In this embodiment, if the current EOBT value is greater than A-TOBT, there is a risk that A-TOBT cannot be executed normally. At this time, the airport operation personnel need to refer to the EOBT value to modify A-TOBT, and need to ensure that the A-TOBT value is greater than A-TOBT.

[0074] S4. Obtain the calculated takeoff time CTOT issued by air traffic control in real time, and calculate the deviation between the airport target off-block time A-TOBT and the calculated takeoff time CTOT. When the deviation is greater than a preset threshold, generate a correction signal for the target off-block time TOBT.

[0075] In this embodiment, the preset threshold is specifically 5 minutes; when the deviation value is greater than 5 minutes, a correction signal of the target off-block time TOBT is generated.

[0076] S5. Correct the target off-block time TOBT based on the correction signal of the target off-block time TOBT.

[0077] In this embodiment, if it is found during the A-TOBT monitoring process that there is a large deviation between the A-TOBT and the CTOT issued by the air traffic control, the deviation between the A-TOBT and the CTOT is greater than 5 minutes, and it is confirmed that the flight can no longer be released according to the CTOT (for example, after communicating with the ground support unit, it is confirmed that the existing support progress can no longer be compressed or the current support resources cannot support subsequent work in time, etc.), it is necessary to refer to the published TOBT for modification and resend the modified TOBT to the air traffic control NTFM system.

[0078] S6. Repeat steps S1 to S5 based on the revised target off-block time TOBT, and continuously monitor the airport target off-block time A-TOBT to determine the flight support sequence and flight release sequence.

[0079] In this embodiment, after receiving the new TOBT, the NTFM system will recalculate the CTOT using the new TOBT and publish it, and the flight will be released according to the CTOT. At the same time, the airline and the airport continue to monitor the A-TOBT by continuing the above operations.

[0080] In this embodiment, the corresponding meanings of the English abbreviations are as follows:

[0081] A-CDM system: The full name of the A-CDM system is the Airport Collaborative Decision-Making System. It is constructed by the airport and collects the operating data of all on-site operating units such as airlines, air traffic control, ground service companies, and aviation fuel, thereby realizing the monitoring of the entire process of flight ground support.

[0082] NTFM system: The national traffic management system integrates the traffic information of traffic management units at all levels of civil aviation, and coordinates the operation support resources of airlines, airports, air traffic control and other platforms, so as to achieve refined flight operation management across the country, improve flight operation efficiency and reduce flight delays.

[0083] TOBT: Target Off-Block Time, the time when the flight will be ready and can be launched immediately after receiving the clearance. TOBT is mainly used to apply for flight release resources from the NTFM system.

[0084] A-TOBT: Airport Target Off-Block Time, the time when a flight is ready and can be launched immediately after receiving permission. A-TOBT is mainly used for support business collaboration between airports and airlines, and provides refined management methods for modifying TOBT data.

[0085] CTOT: Calculated Take-off Time, the estimated departure time of a flight calculated and assigned by the flight flow management system.

[0086] DOBT: Decide Off-Block Time, coordinated off-block time, the latest off-block time calculated by the A-CDM system based on the corresponding flight parameters to ensure that the flight is not delayed.

[0087] EOBT: Estimate Off-Block Time, the estimated flight off-block time at the current moment calculated in the A-CDM system based on the actual progress of flight support work and the corresponding business logic algorithm.

[0088] MTT: Minimum Turn-time, the minimum preparation time required for a flight from landing to the next takeoff.

[0089] VTT: Variable Taxi Time, which is the time it takes for an aircraft to taxi from the parking stand to the runway, calculated based on factors such as the parking stand, take-off runway, and taxi route.

[0090] ETA: Estimated Time of Arrival, which is the flight landing time predicted by different technical means before the flight actually lands.

[0091] ATA: Actual Time of Arrival, the time when the flight actually lands on the runway.

[0092] STD: Schedule Time of Departure, the departure time of the flight plan approved by the Civil Aviation Administration.

[0093] Restricted flights: Flights that cannot be released according to the normal scheduled time due to objective factors and need to be released according to the CTOT time issued by the air traffic control office.

[0094] AIBT: Actual In-Block Time, which refers to the time it takes for ground maintenance personnel to put the first wheel block on the aircraft after the aircraft has stopped at the parking position.

[0095] Reference Figure 1-3 The present invention proposes a target off-block time collaborative management system, comprising:

[0096] A first processing module is used to calculate the coordinated off-block time DOBT of the flight based on the acquired flight information and flight type, where the flight type includes a non-restricted flight with no AIBT time, a non-restricted flight with AIBT time, and a restricted flight;

[0097] The second processing module is used to determine the airport target off-block time A-TOBT based on the coordinated off-block time DOBT of the flight and the actual support capability of the airline;

[0098] A comparison module is used to obtain the estimated off-block time EOBT in real time, compare the estimated off-block time EOBT with the airport target off-block time A-TOBT, and update the airport target off-block time A-TOBT;

[0099] The judgment module is used to obtain the calculated take-off time CTOT issued by the air traffic control in real time, and calculate the deviation between the airport target off-block time A-TOBT and the calculated take-off time CTOT. When the deviation is greater than a preset threshold, a correction signal of the target off-block time TOBT is generated;

[0100] The correction processing module is used to correct the target off-block time TOBT based on the correction signal of the target off-block time TOBT.

[0101] In the specific working process of the target off-block time collaborative management method and system of the present embodiment, the coordinated off-block time DOBT of the flight is calculated based on the acquired flight information and flight type; the airport target off-block time A-TOBT is determined based on the coordinated off-block time DOBT of the flight and the actual support capability of the airline; the estimated off-block time EOBT is acquired in real time, and the estimated off-block time EOBT is compared with the airport target off-block time A-TOBT to update the airport target off-block time A-TOBT; the calculated take-off time CTOT issued by the air traffic control is acquired in real time, and the deviation value between the airport target off-block time A-TOBT and the calculated take-off time CTOT is calculated, and when the deviation value is greater than a preset threshold, a correction signal of the target off-block time TOBT is generated; the target off-block time TOBT is corrected based on the correction signal of the target off-block time TOBT, and then the flight support sequence and the flight release sequence are determined according to the corrected target off-block time TOBT.

[0102] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A target off-block time collaborative management method, characterized in that: The following steps are involved: S1. Calculate the coordinated off-block time DOBT of the flight based on the acquired flight information and flight type. The flight types include: non-restricted flight without AIBT time, non-restricted flight with AIBT time, and restricted flight. The flight information specifically includes: minimum stopover time MTT, variable taxi time VTT, estimated arrival time ETA, actual arrival time ATA, scheduled take-off time STD, actual block time AIBT, calculated take-off time CTOT, and flight number. S2. Determine the airport target off-block time (A-TOBT) based on the flight's coordinated off-block time (DOBT) and the airline's actual support capability; S3, obtaining the estimated off-block time EOBT in real time, comparing the estimated off-block time EOBT with the airport target off-block time A-TOBT, and updating the airport target off-block time A-TOBT; S4. Obtain the calculated takeoff time CTOT issued by air traffic control in real time, and calculate the deviation between the airport target off-block time A-TOBT and the calculated takeoff time CTOT. When the deviation is greater than a preset threshold, generate a correction signal for the target off-block time TOBT; S5. Correcting the target off-block time TOBT based on the correction signal of the target off-block time TOBT; Step S1 specifically includes: During the preset time period, when the flight type is a non-restricted flight and there is no AIBT time, the coordinated off-block time DOBT of the flight is Max{ETA / ATA+VTT+MTT, STD}; When the flight type is a non-restricted flight and has an AIBT time slot, DOBT=Max{AIBT+MTT, STD}; When the flight type is a restricted flight, DOBT = CTOT - VTT; Among them, MTT is the minimum stop time; VTT is the variable taxi time; ETA is the estimated arrival time; ATA is the actual arrival time; STD is the planned take-off time; AIBT is the actual block time; CTOT is the calculated take-off time.

2. The TOBT collaborative management method according to claim 1, characterized in that: Also includes: S6. Repeat steps S1 to S5 based on the revised target off-block time TOBT, and continuously monitor the airport target off-block time A-TOBT to determine the flight support sequence and flight release sequence.

3. The TOBT collaborative management method according to claim 1, characterized in that: Step S2 specifically includes: The target off-block time (A-TOBT) is determined based on the actual support capability of the airline so that the target off-block time (A-TOBT) is no later than the coordinated off-block time (DOBT).

4. The TOBT collaborative management method according to claim 1, characterized in that: The real-time acquisition of estimated off-block time EOBT specifically includes: When the flight actually lands, the EOBT acquisition process is as follows: EOBT=Max{ATA+VTT+MTT,STD-N}; When the flight is parked at the stand and the on-block operation is completed, the process of obtaining the estimated off-block time (EOBT) is as follows: EOBT=Max{AIBT+MTT,STD-N}; When the gate is open for boarding, the EOBT acquisition process is as follows: EOBT = gate opening time + boarding time + time from boarding to door closing; When the gate is closed, the EOBT acquisition process is as follows: EOBT = Gate Closure Time + Time from the end of boarding to the closing of the cabin door; Among them, MTT is the minimum stopover time; VTT is the variable taxi time; ETA is the estimated arrival time; ATA is the actual arrival time; STD is the scheduled take-off time; AIBT is the actual block time, and N is the airport custom time.

5. The TOBT collaborative management method according to claim 4, characterized in that: The method of comparing the estimated off-block time EOBT with the airport target off-block time A-TOBT and updating the airport target off-block time A-TOBT specifically includes: When the EOBT is earlier than the A-TOBT, it means that the flight support is normal and can be completed according to the established A-TOBT. When the estimated off-block time EOBT is later than the airport target off-block time A-TOBT, it means that the flight support is delayed and the airport target off-block time A-TOBT needs to be corrected and updated.

6. The TOBT collaborative management method according to claim 1, characterized in that: The preset threshold is specifically 5 minutes; when the deviation value is greater than 5 minutes, a correction signal of the target off-block time TOBT is generated.

7. A target off-block time collaborative management system, characterized in that: include: A first processing module is used to calculate the coordinated off-block time DOBT of the flight based on the acquired flight information and flight type, where the flight type includes a non-restricted flight with no AIBT time, a non-restricted flight with AIBT time, and a restricted flight; The flight information specifically includes: minimum stopover time MTT, variable taxi time VTT, estimated arrival time ETA, actual arrival time ATA, planned take-off time STD, actual block time AIBT, calculated take-off time CTOT, and flight number; The second processing module is used to determine the airport target off-block time A-TOBT based on the coordinated off-block time DOBT of the flight and the actual support capability of the airline; A comparison module is used to obtain the estimated off-block time EOBT in real time, compare the estimated off-block time EOBT with the airport target off-block time A-TOBT, and update the airport target off-block time A-TOBT; The judgment module is used to obtain the calculated take-off time CTOT issued by the air traffic control in real time, and calculate the deviation between the airport target off-block time A-TOBT and the calculated take-off time CTOT. When the deviation is greater than a preset threshold, a correction signal of the target off-block time TOBT is generated; A correction processing module, configured to correct the target off-block time TOBT based on a correction signal of the target off-block time TOBT; In the first processing module, the coordinated off-block time DOBT of the flight is calculated based on the acquired flight information and flight type, specifically including: During the preset time period, when the flight type is a non-restricted flight and there is no AIBT time, the coordinated off-block time DOBT of the flight is Max{ETA / ATA+VTT+MTT, STD}; When the flight type is a non-restricted flight and has an AIBT time slot, DOBT=Max{AIBT+MTT, STD}; When the flight type is a restricted flight, DOBT = CTOT - VTT; Among them, MTT is the minimum stop time; VTT is the variable taxi time; ETA is the estimated arrival time; ATA is the actual arrival time; STD is the planned take-off time; AIBT is the actual block time; CTOT is the calculated take-off time.

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