JP7616488B2 - Work plan change device, work plan change system, storage device, management device, and work plan change program - Google Patents

Description

The present disclosure relates to a work plan change device, a work plan change system, a storage device, a management device, and a work plan change program that change the work plans of workers at an airport.

Ground operations carried out between the time an aircraft lands at an airport and the time it takes off are carried out according to an operation plan. An operation plan is a plan that determines which worker will be responsible for which flight (or which ground operation), and is drawn up according to the aircraft operation schedule. However, if an aircraft or ground operation is delayed, the work plan that has been drawn up may not be able to resolve the aircraft delay.

Patent document 1 discloses an aircraft spot management system that presents proposed changes when it is determined that a change is necessary to the allocation of aircraft parking spaces due to a delay in ground operations.

JP 2002-74437 A

The conventional technology disclosed in Patent Document 1 had the problem that it was limited to determining whether or not a work delay was occurring and was unable to efficiently change the work plan.

The present disclosure has been made to solve the above-mentioned problems, and aims to provide a work plan change device that can efficiently change work plans.

The work plan change device disclosed herein includes a calculation unit that calculates a delay time for work based on work progress information indicating the progress of the work at the airport, an estimation unit that estimates information identifying a parking schedule that will be affected by the delay of the work based on a parking schedule including parking times of aircraft at multiple parking areas and the delay time, to generate estimated information, and a work plan change unit that changes the work plan of the worker who will perform the work based on the estimated information.

The work plan change device disclosed herein has the effect of enabling work plans to be changed efficiently.

FIG. 1 is a diagram illustrating an example of a configuration of a work plan change system according to first and second embodiments. 4 is an example of an aircraft parking schedule stored in an aircraft parking schedule storage unit according to the first and second embodiments. 4 is an example of travel information stored in a travel information storage unit according to the first and second embodiments. 4 is an example of worker information stored in a worker information storage unit according to the first and second embodiments. 13 is an example of necessary qualification information stored in a necessary qualification information storage unit according to the first and second embodiments. 4 is an example of a work plan formulated by a work plan formulation unit according to the first and second embodiments. 4 is an example of work progress information managed by a work progress information management unit according to the first and second embodiments. 4 is an example of positioning information managed by a positioning information management unit according to the first and second embodiments. 6 is an example of a calculation result by a calculation unit and estimated information estimated by an estimation unit according to the first and second embodiments. 13 is an example of a work plan after being changed by a work plan change unit according to the first and second embodiments. 1 is a flowchart showing an example of an operation procedure of the work plan change system according to the first and second embodiments; FIG. 13 is a diagram illustrating an example of a configuration of a work plan change unit when machine learning is used in the second embodiment. FIG. 13 is a diagram illustrating an example of a configuration of a learning device included in a work plan change unit according to a second embodiment. FIG. 13 is a diagram illustrating an example of a configuration of an inference device provided in an operation plan change unit according to a second embodiment. 1 is a diagram illustrating an example of a hardware configuration of a work plan change device according to the first and second embodiments; FIG. 2 is a diagram illustrating an example of a hardware configuration of a storage device according to the first and second embodiments. FIG. 2 is a diagram illustrating an example of a hardware configuration of a management device according to the first and second embodiments.

Below, the work plan change device, work plan change system, storage device, management device and work plan change program relating to the embodiments are described in detail with reference to the drawings.

Embodiment 1.
1 is an example of a configuration diagram of a work plan change system 10 according to the embodiment 1. The work plan change system 10 is a system that changes a work plan for workers at an airport.

The work plan change system 10 includes a work plan change device 11, a storage device 12, and a management device 13. The work plan change device 11, the storage device 12, and the management device 13 are connected to a network. The work plan change device 11, the storage device 12, and the management device 13 transmit and receive information to each other via the network. In the first embodiment, the network is, for example, a WAN (Wide Area Network) such as the Internet, but may also be a LAN (Local Area Network).

The work plan modification device 11 is a device that modifies the work plans of workers at an airport. The work plan modification device 11 is operated, for example, by an operator that manages the turnaround operations at the airport. The work plan modification device 11 includes a parking schedule input unit 21, a movement information storage unit 22, a worker information storage unit 23, a required qualification information storage unit 24, a work plan formulation unit 25, a work progress information input unit 26, a positioning information input unit 27, and a work plan input unit 28.

The parking schedule input unit 21 inputs a parking schedule including parking times of aircraft at multiple parking lots from the parking schedule output unit 42 of the storage device 12. The parking times include at least one of a parking start time and a parking end time.

The movement information memory unit 22 stores movement information. The movement information is information regarding the movement of workers from one of a number of parking lots to another parking lot. The movement information is information regarding the time required to move between parking lots, or information regarding the distance between parking lots.

The worker information storage unit 23 stores worker information, which is information regarding worker qualifications, etc.

The required qualifications information storage unit 24 stores required qualifications information, which is information that matches work at the parking area with the qualifications required for that work.

The work plan formulation unit 25 formulates a work plan for workers who will perform work at the airport, based on the parking schedule from the parking schedule input unit 21, the movement information from the movement information storage unit 22, the worker information from the worker information storage unit 23, and the necessary qualification information from the necessary qualification information storage unit 24. For example, if the work plan is on a daily basis, the work plan formulation unit 25 formulates the work plan before the start of work for that day. In the example shown in FIG. 1, the work plan formulation unit 25 is included in the work plan modification device 11, but it does not have to be included in the work plan modification device 11. In this case, a work plan that has been manually formulated in advance by an operator who coordinates the work is input to the work plan modification device 11.

The work progress information input unit 26 inputs work progress information indicating the progress of work at the airport from the work progress information output unit 53 of the management device 13.

The positioning information input unit 27 inputs positioning information, which is position information of workers and equipment, from the positioning information output unit 55 of the management device 13. The positioning information may include at least the position information of the workers.

The work plan input unit 28 inputs the latest work plan from the work plan output unit 57 of the management device 13. If the work plan change unit 31 has changed the work plan for the first time, the latest work plan is the plan created by the work plan creation unit 25. If the work plan change unit 31 has changed the work plan for the second time or later, the latest work plan is the plan that was changed immediately before by the work plan change unit 31. In other words, the latest work plan is the plan managed by the work plan management unit 56 of the management device 13, which will be described later, and is the plan that is currently being used as the worker's work plan.

The work plan change device 11 also includes a calculation unit 29, an estimation unit 30, a work plan change unit 31, and a work plan output unit 32.

The calculation unit 29 calculates the delay time of the work based on the work progress information from the work progress information input unit 26. The calculation unit 29 calculates the delay time of the work due to the delayed arrival of the aircraft, or the delay time due to a delay in the work itself. The calculation unit 29 outputs the delay time plus the parking schedule ID and delay factor described later as the calculation result. The calculation result will be described in detail later with reference to FIG. 9. The delay time is the difference between the scheduled work start time and the work start time. The delay time may also be the difference between the scheduled work end time and the work end time, or the difference between the scheduled work end time and the work end time required by the airline.

The estimation unit 30 estimates information that identifies the parking schedule that is affected by the delay of the work based on at least the delay time of the calculation result from the calculation unit 29 and the parking schedule from the parking schedule input unit 21, and sets it as estimated information. When the delay time from the calculation unit 29 is zero, the estimation unit 30 does not need to estimate information that identifies the parking schedule that is affected by the delay. The estimation unit 30 estimates information that identifies the parking schedule that is affected by the delay in the work plan from the work plan input unit 28 based on the delay time from the calculation unit 29, the parking schedule from the parking schedule input unit 21, the movement information from the movement information storage unit 22, the work progress information from the work progress information input unit 26, and the positioning information from the positioning information input unit 27. Here, the information that identifies the parking schedule is information that corresponds one-to-one with the parking schedule, and is, for example, an identifier of the parking schedule. The identifier of the parking schedule corresponds to the parking schedule ID described later.

The estimation unit 30 may estimate information that identifies a parking schedule that will be affected by a delay based only on the delay time calculated by the calculation unit 29. The estimation unit 30 may also estimate information that identifies a parking schedule that will be affected by a delay based on not only the delay time calculated by the calculation unit 29 but also other information. The other information is, for example, a worker's schedule in the latest work plan. Even if a delay occurs in a worker's work, the worker is not necessarily affected by the delay unless he or she is scheduled to perform another work after that. By using not only the delay time but also other information, the estimation unit 30 can accurately estimate information that identifies a parking schedule that will be affected by a delay.

The work plan modification unit 31 modifies the work plan from the work plan input unit 28 based on the estimation information from the estimation unit 30. The work plan modification unit 31 may modify the work plan from the work plan input unit 28 based on the estimation information from the estimation unit 30, the parking schedule from the parking schedule input unit 21, the movement information from the movement information storage unit 22, the worker information from the worker information storage unit 23, the required qualification information from the required qualification information storage unit 24, and the positioning information from the positioning information input unit 27.

The work plan modification unit 31 modifies the work plans of workers who will perform work at the airport for work that is affected by the delay. Work that is affected by the delay refers to work that is linked to information that specifies the parking schedule that is affected by the delay. The work plan modification unit 31 modifies the work plan based on predetermined constraint conditions. Examples of the constraint conditions include: the amount of change from the work plan formulated by the work plan formulation unit 25 is set to a predetermined amount or less; the amount of change from the latest work plan from the work plan input unit 28 is set to a predetermined amount or less; the number of reserve workers assigned to work is set to a predetermined value or less; the maximum overtime hours are set to a predetermined time or less to reduce bias in overtime hours among all workers; and the travel time between parking lots for which the workers are responsible is set to a predetermined time or less.

The work plan output unit 32 outputs the work plan from the work plan formulation unit 25 or the work plan from the work plan modification unit 31 to the work plan input unit 51 of the management device 13. Specifically, if the work plan modification unit 31 has not modified the work plan, the work plan output unit 32 outputs the work plan formulated by the work plan formulation unit 25. If the work plan modification unit 31 has modified the work plan, the work plan output unit 32 outputs the work plan modified by the work plan modification unit 31.

The storage device 12 is a device that stores information used when the work plan change device 11 changes the work plans of workers at the airport. The storage device 12 is operated, for example, by a business operator that transports aircraft. The storage device 12 includes a parking schedule storage unit 41 and a parking schedule output unit 42.

The parking schedule memory unit 41 stores the parking schedule. The parking schedule is information used in the planning performed by the work plan planning unit 25, the estimation performed by the estimation unit 30, and the modification performed by the work plan modification unit 31. Specifically, the parking schedule is information used in the planning of the work plan, the calculation of delay times, the estimation of information identifying parking schedules affected by delays, and the modification of the work plan.

The parking schedule output unit 42 outputs the parking schedule from the parking schedule memory unit 41 to the parking schedule input unit 21 of the work plan change device 11.

The management device 13 is a device that manages information used when the work plan change device 11 changes the work plans of workers at the airport. The management device 13 is operated, for example, by an operator that manages the turnaround operations at the airport. The management device 13 includes a work plan input unit 51, a work progress information management unit 52, a work progress information output unit 53, a positioning information management unit 54, a positioning information output unit 55, a work plan management unit 56, and a work plan output unit 57.

The work plan input unit 51 inputs the work plan from the work plan output unit 32 of the work plan change device 11.

The work progress information management unit 52 manages work progress information. The work progress information is information used in the calculations performed by the calculation unit 29 and the estimations performed by the estimation unit 30. Specifically, the work progress information is information used in the calculation of delay times and in the estimation of information identifying parking schedules that are affected by work delays.

The work progress information output unit 53 outputs the work progress information from the work progress information management unit 52 to the work progress information input unit 26 of the work plan change device 11.

The positioning information management unit 54 manages the positioning information. The positioning information is information used in the estimation performed by the estimation unit 30 and in the changes performed by the work plan change unit 31. Specifically, the positioning information is information used in the estimation of information identifying the affected parking schedule and in the changes to the work plan.

The positioning information output unit 55 outputs the positioning information from the positioning information management unit 54 to the positioning information input unit 27 of the work plan change device 11.

The work plan management unit 56 manages the work plan from the work plan input unit 51.

The work plan output unit 57 outputs the work plan from the work plan management unit 56 to the work plan input unit 28 of the work plan change device 11.

Next, various information and work plans according to the first embodiment will be described in detail with reference to Figures 2 to 10. Figure 2 is an example of an aircraft parking schedule stored in the aircraft parking schedule memory unit 41 of the storage device 12 according to the first embodiment. The aircraft parking schedule includes an aircraft parking schedule ID, aircraft number, aircraft type, work type, parking lot number, flight name at the time of arrival, parking start time, parking end time, flight name at the time of departure, and update time.

The parking schedule ID is an identifier for the parking schedule. The aircraft number is a number that uniquely identifies the parked aircraft. The aircraft model is the type of aircraft that is parked. The work type is a work ID that is set for the parked aircraft. The parking lot number is a number that indicates the location where the aircraft is parked. The arrival flight name is the flight name when the aircraft arrives at the airport and begins parking. The parking start time is the time when the aircraft arrives and stops at the parking lot. The parking end time is the time when the aircraft begins moving again to leave the parking lot for takeoff. The departure flight name is the flight name when the aircraft ends parking and departs from the airport. The update time is the time when the parking schedule memory unit 41 updates the parking schedule based on the aircraft's operational status.

In the example shown in FIG. 2, the parking lot with parking lot number "1" corresponding to parking schedule ID "00001" represents the "first parking lot." Additionally, the parking lot with parking lot number "2" corresponding to parking schedule ID "00002" represents the "second parking lot."

The work type corresponding to a parking schedule ID may be one, such as parking schedule ID "00001," or it may be multiple, such as parking schedule ID "00002."

Figure 3 is an example of travel information stored in the travel information storage unit 22 of the work plan change device 11 according to the first embodiment. The travel information includes, for multiple parking lots, information on the travel time required for workers to travel between one parking lot and each of the other parking lots. In the example shown in Figure 3, the information also includes information on the travel time required for travel between a parking lot and a loading and unloading area, and information on the travel time required for travel between one loading and unloading area and another loading and unloading area.

The travel time is, for example, the standard time it takes for a worker to travel by foot or car from the parking lot or cargo handling area, which is the origin point, to the parking lot or cargo handling area, which is the destination point. If the worker uses equipment at the destination, the travel time may be the standard time it takes for the worker to travel using that equipment. In this case, considering that the travel speed differs for each piece of equipment, the travel information storage unit 22 may store travel information for each piece of equipment. The travel information is not limited to information on travel time, but may also be information on travel distance, which is the distance from the parking lot or cargo handling area, which is the origin point, to the parking lot or cargo handling area, which is the destination point. In this case, the travel distance is calculated by multiplying the travel speed by the travel time.

Figure 4 is an example of worker information stored in the worker information storage unit 23 of the work plan change device 11 according to embodiment 1. The worker information includes a worker ID and information on whether or not the worker holds each qualification.

The worker ID is an identifier that uniquely identifies a worker. Information on whether or not a worker holds each qualification is represented by "T" and "F." "T" means that the worker holds the qualification, and "F" means that the worker does not hold the qualification. In the example shown in Figure 4, the worker with worker ID "a0010" holds qualification 1, but does not hold qualification 2. Here, qualifications indicate whether or not the worker can perform the various ancillary tasks that make up ground work.

Figure 5 is an example of the necessary qualification information stored in the necessary qualification information storage unit 24 of the work plan change device 11 in embodiment 1. The necessary qualification information includes the work type and information on whether each qualification is required. In other words, the necessary qualification information is information that indicates which qualifications are required for the work type set for a parked aircraft.

Information on whether each qualification is required is represented by "T" and "F". "T" means that a qualification is required, and "F" means that a qualification is not required. In the example shown in Figure 5, work of work type "OP001" requires qualification 1, but not qualification 2. Therefore, a worker who holds at least qualification 1 can perform work of work type "OP001". Furthermore, a worker who holds at least qualifications 1 and 2 can perform work of work type "OP002" alone. This is not limited to the above, and for example, a worker who holds only qualification 1 and a worker who holds only qualification 2 may be able to perform work of work type "OP002" together.

Figure 6 is an example of a work plan formulated by the work plan formulation unit 25 of the work plan modification device 11 in embodiment 1. Figure 6 is an example of a work plan for a certain day. The work plan includes a worker ID, a work start time, a work end time, a work type, a qualification, a work location (starting point), a work location (ending point), and a parking schedule ID.

The work start time is the time when the worker corresponding to the worker ID should start the work. The work end time is the time when the worker corresponding to the worker ID should finish the work. The qualifications are the qualifications required for the work. Qualification "N/A" means that no qualification is required for the corresponding work. Here, there is no one-to-one correspondence between work types and qualifications. In the example shown in Figure 6, work of work type "OP042" requires qualification 20, but for example, qualification 21 is also required.

The work location (starting point) is the location where work corresponding to the work type is performed. Alternatively, the work location (starting point) is the starting point when the work corresponding to the work type involves movement. The work location (end point) is the end point when the work corresponding to the work type involves movement. Work location (end point) "N/A" means that the work corresponding to the work type does not involve movement. The parking schedule ID is the ID of the parking schedule. The parking schedule ID "N/A" means that it is not dependent on work at a specific parking lot. In the example shown in Figure 6, the worker corresponding to worker ID "a0020" only moves between parking lots and does not work at a specific parking lot.

In the example shown in FIG. 6, the worker corresponding to worker ID "a0010" performs loading and unloading work at Parking Lot No. 6 between 10:40 and 10:50 based on the parking schedule with parking schedule ID "00039". The worker corresponding to worker ID "a0011" transports luggage from Parking Lot No. 3 to Parking Lot No. 8 between 11:00 and 11:10 based on the parking schedule with parking schedule ID "00015". The worker corresponding to worker ID "a0020" moves from Parking Lot No. 5 to Parking Lot No. 2 between 12:10 and 12:25.

Figure 7 is an example of work progress information managed by the work progress information management unit 52 of the management device 13 according to embodiment 1. The work progress information includes an aircraft parking schedule ID, a scheduled work start time, a work start time, a scheduled work end time, a work end time, a work end time requested by the airline, and an update time.

The scheduled work start time is the time when work based on the parking schedule corresponding to the parking schedule ID is scheduled to start. The work start time is the time when the work actually starts. The scheduled work end time is the time when work based on the parking schedule corresponding to the parking schedule ID is scheduled to end. If the work start time changes from the scheduled work start time, the scheduled work end time is changed based on the amount of change between the scheduled work start time and the work start time. In the example shown in FIG. 7, the scheduled work start time for work based on the parking schedule corresponding to the parking schedule ID "00002" is 14:00, while the work start time is 14:10. In this case, the work started 10 minutes later than planned. As a result, the scheduled work end time has been changed to 14:50. If the work start time was 14:00 as scheduled, the scheduled work end time would be 14:40.

The work end time is the time when the work was actually completed. If the work has not been completed, the work end time will be left blank. The work end time required by the airline is the work end time that must be met in order for the aircraft in question to depart again. The update time is the time when the work progress information management unit 52 updated the work progress information in accordance with the work progress status.

Figure 8 is an example of positioning information managed by the positioning information management unit 54 of the management device 13 according to embodiment 1. The positioning information includes a worker ID or equipment ID, a position (closest work location), and an update time.

The equipment ID is an identifier given to each of a number of pieces of equipment used in ground operations at an airport. The location (nearest work location) is the location of the worker corresponding to the worker ID or the nearest work location. The location (nearest work location) may be the location of the equipment corresponding to the equipment ID or the nearest work location. The location (nearest work location) may be detected by a GPS (Global Positioning System) (not shown), or may be detected by a camera (not shown) mounted at a specified location. The detection method is not limited to these. The update time is the time when the positioning information management unit 54 updates the location of the worker or equipment.

Figure 9 shows an example of the calculation result by the calculation unit 29 of the work plan change device 11 in embodiment 1, and the estimated information estimated by the estimation unit 30 of the work plan change device 11. The calculation result includes the parking schedule ID, the delay cause, and the delay time. The estimated information includes the parking schedule ID of the parking schedule affected by the delay.

The delay cause is the cause of the work delay. The delay time is the delay time corresponding to the delay cause. The parking schedule ID of the parking schedule affected by the delay is the identifier of the parking schedule affected by the delay. The parking schedule ID "N/A" of the parking schedule affected by the delay means that the parking schedule ID of the parking schedule affected by the delay does not exist.

In the example shown in FIG. 9, the work start time of the work corresponding to the parking schedule ID "00042" is delayed by 20 minutes. As a result, the estimation unit 30 estimates that the parking schedule IDs "00042" and "00051" are affected by the delay. Specifically, the estimation unit 30 estimates that the work corresponding to the parking schedule IDs "00042" and "00051" is affected by the delay. Here, the reason why the parking schedule ID "00042" is estimated to be affected by the delay is, for example, because there are multiple works corresponding to the parking schedule ID "00042", and the delay in the start time of one of the works affects the remaining works. In addition, the reason why the parking schedule ID "00051" is estimated to be affected by the delay is, for example, because when a worker performing a work corresponding to the parking schedule ID "00042" continues to perform a work corresponding to the parking schedule ID "00051", the start time of the work corresponding to the parking schedule ID "00051" is also delayed.

In addition, the end time of the work corresponding to parking schedule ID "00008" has been delayed by 15 minutes. As a result, the estimation unit 30 estimates that parking schedule ID "00055" will be affected by the delay. The reason that parking schedule ID "00055" is estimated to be affected by the delay is, for example, because the work corresponding to parking schedule ID "00008" is followed by the work corresponding to parking schedule ID "00055" at the same parking area.

In addition, the start time of the work corresponding to parking schedule ID "00039" has been delayed by 5 minutes. This causes the estimation unit 30 to estimate that parking schedule ID "00039" will be affected by the delay.

In addition, the end time of the work corresponding to the parking schedule ID "00045" has been delayed by two minutes. However, the estimation unit 30 estimates that there is no parking schedule ID that is affected by the delay.

Figure 10 is an example of a work plan after being changed by the work plan change unit 31 of the work plan change device 11 according to the first embodiment. As in Figure 6, the work plan includes a worker ID, a work start time, a work end time, a work type, a qualification, a work location (starting point), a work location (ending point), and a parking schedule ID.

The example shown in FIG. 10 differs from FIG. 6 in that the work start time of the worker corresponding to worker ID "a0010" has been changed from 10:40 to 10:45, and a work plan for the worker corresponding to worker ID "a0032" has been added. This is because the work start time corresponding to parking schedule ID "00039" in the work progress information shown in FIG. 7 has been delayed by 5 minutes. As a result, as shown in FIG. 9, the estimation unit 30 estimates parking schedule ID "00039" as estimated information.

In the example shown in FIG. 10, the work plan is changed so that the delay in starting the work is made up by having the worker corresponding to the worker ID "a0032" perform the work corresponding to the work type "OP032" of the parking schedule ID "00039" in addition to the worker corresponding to the worker ID "a0010". Note that the work corresponding to the work type "OP032" of the parking schedule ID "00039" requires qualification 1, and the worker corresponding to the worker ID "a0010" who was previously assigned to this work has qualification 1 as shown in FIG. 6. Therefore, the newly added worker corresponding to the worker ID "a0032" does not necessarily have to have qualification 1. It is desirable that the additional worker who performs the work corresponding to the work type "OP032" is close to the sixth parking apron, which is the work location (starting point) for loading and unloading. Whether the distance is close or not can be determined from the positioning information from the positioning information input unit 27. In addition, the location of the worker, which is an additional factor, can be estimated not only from the positioning information but also from the work location (starting point) or work location (ending point) of the latest work plan.

In the above, the work plan for work type "OP032" for parking schedule ID "00039" is changed, but if there is other work corresponding to parking schedule ID "00039", the work plan may be changed so that the worker corresponding to worker ID "a0032" performs work other than the work corresponding to work type "OP032".

The work plan may also be changed so that not only the worker corresponding to worker ID "a0032" but also other workers perform the work corresponding to work type "OP032" of parking schedule ID "00039". In this case, a worker who is close to Parking Lot 6, which is the work location (starting point) for loading and unloading, is preferable. Furthermore, when worker ID "a0032" operates the equipment and heads to Parking Lot 6, a worker who can board the equipment on the way to Parking Lot 6 is preferable.

Next, the operation of the work plan change system 10 will be described. FIG. 11 is a flowchart showing an example of the operation procedure of the work plan change system 10 according to the first embodiment. As a premise for the operation procedure described below, the parking schedule storage unit 41 stores an aircraft parking schedule. The movement information storage unit 22 stores movement information. The worker information storage unit 23 stores worker information. The required qualification information storage unit 24 stores required qualification information. The work progress information management unit 52 manages work progress information. The positioning information management unit 54 manages positioning information. The work plan management unit 56 manages the latest work plan that has been previously planned or changed.

In step ST1, the parking schedule output unit 42 of the storage device 12 determines whether the parking schedule shown in FIG. 2 has been updated. Specifically, the parking schedule output unit 42 determines whether the parking schedule has been updated based on the update time of the parking schedule. In addition, the work progress information output unit 53 of the management device 13 determines whether the work progress information shown in FIG. 7 has been updated. Specifically, the work progress information output unit 53 determines whether the work progress information has been updated based on the update time of the work progress information. If the judgment in step ST1 is Yes, that is, if at least one of the judgments made by the parking schedule output unit 42 or the judgments made by the work progress information output unit 53 is Yes, the process proceeds to step ST2. If the judgment in step ST1 is No, that is, if both the judgments made by the parking schedule output unit 42 and the judgments made by the work progress information output unit 53 are No, the work plan change device 11 performs the process of step ST1 again.

In step ST2, if it is determined that the parking schedule has been updated, the parking schedule input unit 21 of the work plan modification device 11 receives the updated parking schedule from the parking schedule output unit 42 of the storage device 12. If it is determined that the work progress information has been updated, the work progress information input unit 26 of the work plan modification device 11 receives the updated work progress information from the work progress information output unit 53 of the management device 13.

In step ST3, the positioning information output unit 55 of the management device 13 determines whether the positioning information shown in FIG. 8 has been updated. Specifically, the positioning information output unit 55 determines whether the positioning information has been updated based on the update time in the positioning information. If the determination in step ST3 is Yes, the process proceeds to step ST4. If the determination in step ST3 is No, the process proceeds to step ST5.

In step ST4, the positioning information input unit 27 of the work plan change device 11 receives the updated positioning information from the positioning information output unit 55 of the management device 13.

In step ST5, the calculation unit 29 of the work plan change device 11 calculates the delay time based on the work progress information.

In step ST6, the estimation unit 30 of the work plan modification device 11 estimates the parking schedule ID of the parking schedule affected by the delay in the work plan from the work plan input unit 28. The estimation unit 30 of the work plan modification device 11 estimates the parking schedule ID of the parking schedule affected by the delay in the work plan from the work plan input unit 28 based on the delay time, the parking schedule, the work progress information, the movement information, and the positioning information. The estimation unit 30 may notify, for example, an operator coordinating the work of the parking schedule ID of the parking schedule affected by the delay as an alert.

In step ST8, the work plan modification unit 31 of the work plan modification device 11 modifies the work plan for the parking schedule ID of the parking schedule affected by the delay based on the estimated information. Alternatively, the work plan modification unit 31 of the work plan modification device 11 modifies the work plan for the parking schedule ID of the parking schedule affected by the delay based on the estimated information, the parking schedule, the movement information, the worker information, the required qualification information, and the positioning information. The work plan modification unit 31 may notify the operator or worker in charge of the work of the modified work plan. With the above, the work plan modification system 10 ends the operation according to the procedure shown in FIG. 11.

In the procedure shown in FIG. 11, if neither the parking schedule nor the work progress information is updated, the processing from step ST2 onwards is not performed. This is not limited to the above, and the processing from step ST2 onwards may be performed at a predetermined cycle regardless of whether the information has been updated or not. In this case, the processing of step ST1 is not performed. Furthermore, in step ST2, not only updated information is obtained, but all information, i.e., parking schedule, movement information, worker information, required qualification information, work progress information and positioning information, is obtained.

According to the first embodiment, the calculation unit 29 calculates the delay time based on the work progress information. The estimation unit 30 estimates the parking schedule ID of the parking schedule affected by the delay based on the delay time and the parking schedule to obtain estimated information. The work plan modification unit 31 modifies the work plan based on the estimated information. This makes it possible to appropriately determine whether or not the work plan needs to be modified, to identify the parts that need to be modified, and to efficiently modify the work plan.

The estimation unit 30 estimates the parking schedule ID of the parking schedule affected by the delay, taking into account the travel information. This allows the estimated information to be estimated with high accuracy. The work plan change unit 31 changes the work plan, taking into account the travel information. This allows the work plan to be changed with high accuracy.

The work plan modification unit 31 modifies the work plan, taking into consideration the worker information as well. This allows for a work plan that appropriately assigns workers suited to the characteristics of the work. The work plan modification unit 31 modifies the work plan, taking into consideration the required qualification information as well. This allows for a work plan that appropriately assigns workers suited to the characteristics of the work.

The estimation unit 30 estimates the parking schedule ID of the parking schedule affected by the delay, taking into account the positioning information. This allows the estimated information to be estimated with high accuracy. The work plan modification unit 31 modifies the work plan, taking into account the positioning information. This allows workers to be assigned to a parking area close to the parking schedule ID of the parking schedule affected by the delay, and allows for a work plan that minimizes the burden on workers.

The specific form of distribution or integration of each component in the work plan change system 10 according to the first embodiment is not limited to that described in the first embodiment. For example, the parking schedule storage unit 41 may be provided in the work plan change device 11. By providing the parking schedule storage unit 41 in the work plan change device 11, the functions of the work plan change device 11 and the functions of the storage device 12 may be realized by one device. Alternatively, at least one of the work progress information management unit 52, the positioning information management unit 54, and the work plan management unit 56 may be provided in the work plan change device 11. By providing the work progress information management unit 52, the positioning information management unit 54, and the work plan management unit 56 in the work plan change device 11, the functions of the work plan change device 11 and the functions of the management device 13 may be realized by one device. Furthermore, the functions of the work plan change device 11, the functions of the storage device 12, and the functions of the management device 13 may be realized by one device.

Embodiment 2.
In the first embodiment, the work plan change unit 31 changes the work plan in an arbitrary manner based on the estimation information, the parking schedule, the movement information, the worker information, the required qualification information, and the positioning information. Meanwhile, in the second embodiment, the work plan change unit 31 changes the work plan using, for example, machine learning. Note that the configuration diagram of the work plan change system 10 according to the second embodiment is the same as the configuration diagram shown in FIG. 1.

A method of changing a work plan using machine learning is described below. FIG. 12 is an example of a configuration diagram of a work plan change unit 70 when machine learning is used in embodiment 2. The work plan change unit 70 is an example of a work plan change unit 31 that changes a work plan using machine learning.

The work plan modification unit 70 includes a learning device 71, an inference device 72, and a learned model storage unit 73. The learning device 71 learns the work plan. The learning device 71 outputs a learned model that is the result of learning. The learned model storage unit 73 stores the learned model. The inference device 72 reads out the learned model that infers the work plan from the learned model storage unit 73. The inference device 72 outputs the inference result as a modified work plan by inputting inference data to the learned model.

Figure 13 is an example of a configuration diagram of a learning device 71 provided in the work plan modification unit 70 according to the second embodiment. The learning device 71 includes a data acquisition unit 74 and a model generation unit 75. The data acquisition unit 74 acquires learning data and creates a data set by compiling the learning data. The learning data includes the latest work plan, estimated information, parking schedule, work progress information, movement information, worker information, required qualification information, and positioning information.

The model generation unit 75 generates a trained model using the learning data. The model generation unit 75 generates a trained model that infers a work plan from the latest work plan, estimation information, parking schedule, work progress information, movement information, worker information, required qualification information, and positioning information.

The learning algorithm used by the model generation unit 75 can be a known algorithm such as supervised learning, unsupervised learning, or reinforcement learning. As an example, a case where reinforcement learning is applied to the learning algorithm used by the model generation unit 65 will be described. In reinforcement learning, an agent in an environment observes the current state and decides on an action to be taken. The agent obtains a reward from the environment by selecting an action, and learns a policy that will obtain the most reward through a series of actions. Q-learning and TD (Temporal Difference) learning are known as representative methods of reinforcement learning. For example, in the case of Q-learning, the action value table, which is a general update formula for the action value function Q(s,a), is expressed by the following formula (1). The action value function Q(s,a) represents the action value Q, which is the value of the action of selecting the action "a" in the environment "s".

In formula (1), "s _t " represents the environment at time "t". "a _t " represents an action at time "t". The action "a _t " changes the environment to "s _t+1 ". "r _t+1 " represents the reward obtained due to the change in the environment. "γ" represents the discount rate. "α" represents the learning coefficient. The work plan becomes the environment "s _t ". The method of updating the work plan in the model generation unit 65 or the point of updating the work plan becomes the action "a _t ". The latest work plan, estimated information, parking schedule, work progress information, movement information, worker information, required qualification information, and positioning information data are the data referenced when updating the work plan.

The update formula expressed by equation (1) increases the action value Q if the action value of the best action "a" at time "t+1" is greater than the action value Q of the action "a" executed at time "t", and decreases the action value Q in the opposite case. In other words, the action value function Q(s, a) is updated so that the action value Q of the action "a" at time "t" approaches the best action value at time "t+1". As a result, the best action value in a certain environment is propagated sequentially to the action value in the previous environment.

The model generation unit 75 has a reward calculation unit 76 and a function update unit 77. The reward calculation unit 76 calculates a reward based on the data set. The function update unit 77 updates a function for determining a work plan according to the reward calculated by the reward calculation unit 76.

Specifically, the reward calculation unit 76 calculates the reward "r" based on the value of the objective function that uses the efficiency of the work plan as an index. The efficiency of the work plan refers to the small amount of change from the latest work plan, the small number of reserve workers assigned to the work, the small bias in overtime hours of all workers, and the small amount of movement between parking lots in charge. For example, when the value of the objective function changes in a direction that improves the efficiency of the work plan, the reward calculation unit 76 increases the reward "r". The reward calculation unit 76 increases the reward "r" by giving a reward value of "1". Note that the reward value is not limited to "1". When the value of the objective function changes in a direction that decreases the efficiency of the work plan, the reward calculation unit 76 decreases the reward "r". The reward calculation unit 76 decreases the reward "r" by giving a reward value of "-1". Note that the reward value is not limited to "-1".

The function update unit 77 updates the function, which is a model for determining a work plan, according to the reward calculated by the reward calculation unit 76. The function can be updated by, for example, updating an action value table according to a data set. The action value table is a data set in which any action is associated with its action value and stored in the form of a table. For example, in the case of Q-learning, the action value function Q(s _t , a _t ) expressed by the above formula (1) is used as a function for determining estimated information.

So far, we have described the case where reinforcement learning is applied to the learning algorithm used by the model generation unit 75, but learning other than reinforcement learning may be applied to the learning algorithm. The model generation unit 75 may perform machine learning using a known learning algorithm other than reinforcement learning, such as a learning algorithm such as deep learning, neural network, genetic programming, inductive logic programming, or support vector machine.

Figure 14 is an example of a configuration diagram of an inference device 72 provided in the work plan change unit 70 in embodiment 2. The inference device 72 infers a work plan based on inference data.

The inference device 72 has a data acquisition unit 78 and an inference unit 79. The data acquisition unit 78 acquires data for inference. The data for inference is the latest work plan, estimated information, parking schedule, work progress information, movement information, worker information, required qualification information, and positioning information.

The inference unit 79 reads the trained model generated by the learning device 71 from the trained model storage unit 73. The inference unit 79 infers a work plan by inputting inference data to the trained model. The inference unit 79 outputs the inference result as a modified work plan.

In this way, the work plan modification unit 70 modifies the work plan using machine learning. This enables the work plan modification device 11 to modify the work plan with high accuracy.

The learning device 71 and the inference device 72 are provided in the work plan change device 11, but are not limited to this. The learning device 71 and the inference device 72 may be provided outside the work plan change device 11. In this case, the learning device 71 and the inference device 72 may be connected to the work plan change device 11 via a network. The learning device 71 and the inference device 72 may exist on a cloud server.

According to the second embodiment, the work plan change unit 70 uses machine learning to change the work plan. This can improve the accuracy of the changes.

Next, the hardware configuration of the work plan change device 11 will be described. FIG. 15 is an example of a hardware configuration diagram of the work plan change device 11 according to the first and second embodiments. The work plan change device 11 is realized by a computer system including a processing circuit 90 and a communication device 91. The processing circuit 90 includes a processor 92 and a memory 93. The processing circuit 90 is a circuit on which the processor 92 executes software.

The processing units of the work plan modification device 11, that is, the work plan formulation unit 25, the calculation unit 29, the estimation unit 30, and the work plan modification unit 31, are realized by software, firmware, or a combination of software and firmware. The software or firmware is written as a program and stored in the memory 93. In the processing circuit 90, the processor 92 reads and executes the work plan modification program, which is a program stored in the memory 93, to realize the functions of the work plan formulation unit 25, the calculation unit 29, the estimation unit 30, and the work plan modification unit 31. That is, the processing circuit 90 includes a memory 93 for storing a program that results in the processing of the work plan modification device 11 being executed. It can also be said that the work plan modification program stored in the memory 93 causes a computer to execute the procedures and methods of the work plan modification device 11.

Processor 92 is a CPU (Central Processing Unit, also called a central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, processor, or DSP (Digital Signal Processor)). The memory 93 may be, for example, a non-volatile or volatile semiconductor memory such as a random access memory (RAM), a read only memory (ROM), a flash memory, an erasable programmable read only memory (EPROM), an electrically erasable programmable read only memory (EEPROM (registered trademark)), a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, or a digital versatile disk (DVD), etc. The movement information storage unit 22, the worker information storage unit 23, and the required qualification information storage unit 24 are realized by the memory 93. The parking schedule input unit 21 , the work progress information input unit 26 , the positioning information input unit 27 , the work plan input unit 28 , and the work plan output unit 32 are realized by the communication device 91 .

Next, the hardware configuration of the storage device 12 will be described. Figure 16 is an example of a hardware configuration diagram of the storage device 12 according to embodiments 1 and 2. The storage device 12 is realized by a computer system including a processing circuit 100 and a communication device 101. The processing circuit 100 includes a processor 102 and a memory 103. The functions of the communication device 101, the processor 102, and the memory 103 are the same as those of the communication device 91, the processor 92, and the memory 93 shown in Figure 15, respectively, and therefore detailed description will be omitted. The parking schedule storage unit 41 is realized by the memory 103. The parking schedule output unit 42 is realized by the communication device 101.

Next, the hardware configuration of the management device 13 will be described. FIG. 17 is an example of a hardware configuration diagram of the management device 13 according to embodiments 1 and 2. The management device 13 is realized by a computer system including a processing circuit 110 and a communication device 111. The processing circuit 110 includes a processor 112 and a memory 113. The functions of the communication device 111, the processor 112, and the memory 113 are the same as the functions of the communication device 91, the processor 92, and the memory 93 shown in FIG. 15, respectively, and therefore detailed description will be omitted.

The work progress information management unit 52, the positioning information management unit 54, and the work plan management unit 56 are realized by the memory 113. The work progress information output unit 53, the positioning information output unit 55, the work plan input unit 51, and the work plan output unit 57 are realized by the communication device 111.

Each of the work plan change device 11, the storage device 12, and the management device 13 may include an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). Each of the work plan change device 11, the storage device 12, and the management device 13 may be composed of two or more devices. The operation plan creation program may be stored in a recording medium such as a CD (Compact Disc)-ROM or a DVD-ROM, and the recording medium may be provided to realize each embodiment.

The configurations shown in the above embodiments are examples of the contents of this disclosure. The configurations of each embodiment can be combined with other known technologies. The configurations of each embodiment can be combined as appropriate. A portion of the configuration of each embodiment can be omitted or modified without departing from the gist of this disclosure.

10 Work plan change system, 11 Work plan change device, 12 Storage device, 13 Management device, 21 Parking schedule input unit, 22 Movement information storage unit, 23 Worker information storage unit, 24 Required qualification information storage unit, 25 Work plan formulation unit, 26 Work progress information input unit, 27 Positioning information input unit, 28 Work plan input unit, 29 Calculation unit, 30 Estimation unit, 31 Work plan change unit, 32 Work plan output unit, 41 Parking schedule storage unit, 42 Parking schedule output unit, 51 Work plan input unit, 52 Work progress information management unit, 53 Work progress information output unit, 54 Positioning information management unit, 55 Positioning information output unit, 56 Work plan management unit, 57 Work plan output unit, 70 Work plan change unit, 71 Learning device, 72 Inference device, 73 Learned model memory unit, 74 Data acquisition unit, 75 Model generation unit, 76 Reward calculation unit, 77 Function update unit, 78 Data acquisition unit, 79 Inference unit, 90 Processing circuit, 91 Communication device, 92 Processor, 93 Memory, 100 Processing circuit, 101 Communication device, 102 Processor, 103 Memory, 110 Processing circuit, 111 Communication device, 112 Processor, 113 Memory.

Claims (17)

a calculation unit that calculates a delay time of the work based on work progress information indicating the progress of the work at the airport;
an estimation unit that estimates information that identifies a parking schedule that will be affected by the delay of the work based on a parking schedule including parking times of aircraft at a plurality of parking areas and the delay time, and generates estimated information;
a work plan change unit that changes a work plan of a worker who will perform the work based on the estimated information;
A work plan change device comprising: The work plan change device according to claim 1,
The estimation unit is a work plan change device that estimates the estimated information based on movement information, which is information regarding the movement of the worker from one of the multiple parking lots to another parking lot. 3. The work plan change device according to claim 1,
The estimation unit is a work plan change device that estimates the estimated information based on positioning information, which is position information of the worker. 3. The work plan change device according to claim 1,
The work plan change unit is a work plan change device that changes the work plan based on movement information, which is information regarding the movement of the worker from one of the multiple parking areas to another of the parking areas. 3. The work plan change device according to claim 1,
The work plan change unit is a work plan change device that changes the work plan based on positioning information that is position information of the worker. 3. The work plan change device according to claim 1,
The work plan modification unit is a work plan modification device that modifies the work plan based on positioning information that is position information of the workers and equipment. 3. The work plan change device according to claim 1,
The work plan modification unit is a work plan modification device that modifies the work plan based on worker information, which is information regarding the qualifications of the worker. The work plan change device according to claim 7,
The work plan change unit is a work plan change device that changes the work plan based on required qualification information, which is information that matches the work at the parking area with the qualifications required for the work. The work plan change device according to claim 1,
The work plan change unit is a work plan change device including a model generation unit that generates a trained model that infers the work plan. The work plan change device according to claim 1 or 9,
The work plan change device includes an inference unit that outputs the work plan using a trained model that infers the work plan. a parking schedule storage unit that stores a parking schedule including parking times of aircraft at a plurality of parking lots;
a work progress information management unit that manages work progress information indicating the progress of work at the airport;
A calculation unit that calculates a delay time of the work based on the work progress information;
an estimation unit that estimates information specifying an aircraft parking schedule that will be affected by the delay of the work based on the aircraft parking schedule and the delay time, and generates estimated information;
a work plan change unit that changes a work plan of a worker who will perform the work based on the estimated information;
A work plan change system comprising: A storage device for storing information used by the work plan change device according to claim 1,
A storage device comprising: an aircraft parking schedule storage unit that stores the aircraft parking schedule used in estimating the estimated information. A management device for managing information used by the work plan change device according to claim 1,
a management device comprising: a work progress information management unit that manages the work progress information used in calculating the delay time. The management device according to claim 13,
A management device including a positioning information management unit that manages positioning information, which is information used in estimating the estimated information and is position information of the worker. 15. The management device according to claim 13,
A management device including a positioning information management unit that manages positioning information, which is information used in changing the work plan and is position information of the worker. The management device according to claim 14 ,
The positioning information management unit is a management device that manages positioning information, which is position information of the workers and equipment. Calculating a delay time of the work based on work progress information indicating the progress of the work at the airport;
A step of estimating information for identifying a parking schedule that will be affected by the delay of the work based on a parking schedule including parking times of aircraft at a plurality of parking areas and the delay time, and setting the information as estimated information;
changing a work plan of a worker who will perform the work based on the estimated information;
A work plan change program that causes a computer to execute the above.

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