Job node identification methods, devices, equipment and storage media

Abstract

This application provides a method, apparatus, device, and storage medium for identifying work nodes, relating to the field of data acquisition technology. It can intelligently identify the work nodes of airport work vehicles without manual intervention. The method includes: acquiring target data features of the airport work vehicle based on its equipment data stream; the target data features include at least one of the following: vehicle positioning information, vehicle drive motor status, work device motor status, vehicle speed, vehicle docking status, and vehicle hydraulic system signals; matching the target data features with preset feature conditions corresponding to each work node; when the target data features match the preset feature conditions of the target work node, determining that the airport work vehicle is at the target work node; each work node includes at least a work vehicle arrival node, a proximity node to the aircraft node, an aircraft docking node, a docking completion node, and a work completion node.

Description

Technical Field

[0001] This application relates to the field of data acquisition technology, and in particular to a method, apparatus, device and storage medium for identifying work nodes. Background Technology

[0002] Data collection at airport operation vehicle nodes is crucial for the orderly operation of airport flights. Currently, data collection at airport operation vehicle nodes mainly relies on data input by airport staff on-site to identify the operation nodes of the airport operation vehicles.

[0003] However, this method mainly relies on manual operation, which requires a large investment of human resources and has a low level of digitalization and intelligence. It also suffers from problems such as poor timeliness and susceptibility to errors. Summary of the Invention

[0004] The purpose of this application is to provide a method, apparatus, device and storage medium for identifying work nodes, which can intelligently identify the work nodes of airport work vehicles without human intervention.

[0005] To achieve the above objectives, this application adopts the following technical solution: Firstly, this application provides a method for identifying work nodes. The method includes: acquiring target data features of the airport work vehicle based on its equipment data stream; matching the target data features with preset feature conditions corresponding to each work node; and determining that the airport work vehicle is at a target work node when the target data features match the preset feature conditions of the target work node. The equipment data stream is used to characterize the data generated by the airport work vehicle from work preparation to work completion. The target data features include at least one of the following: vehicle positioning information, vehicle drive motor status, work device motor status, vehicle speed, vehicle approaching aircraft status, and vehicle hydraulic system signals. Each work node includes at least a work vehicle arrival node, an approaching aircraft node, an aircraft docking node, a docking completion node, and a work completion node.

[0006] The technical solution provided in this application extracts features from the equipment data stream of an airport operation vehicle to obtain target data features. These target data features reflect the key actions of the airport operation vehicle. The target data features are then matched with preset feature conditions corresponding to each operation node. These preset feature conditions reflect the key actions of each operation node. When the target data features match the preset feature conditions of the target operation node, that is, when the key actions of the airport operation vehicle match the key actions of the target operation node, it indicates that the airport operation vehicle is at the target operation node. The above process can automatically complete the identification of airport operation vehicle operation nodes without manual intervention.

[0007] In some embodiments, the airport work vehicle is an airport belt conveyor vehicle. The motor status of the work device includes the status of the conveyor belt motor.

[0008] In some embodiments, the target operation node is the operation vehicle arrival node. The preset characteristic conditions corresponding to the operation vehicle arrival node include: vehicle positioning information indicating that the airport conveyor belt trolley has arrived within a preset operation electronic fence, which indicates a preset operation range centered on the parking position of the target aircraft being operated by the airport conveyor belt trolley; vehicle drive motor status indicating that the vehicle drive motor speed is 0, or that the vehicle is in a powered-off state; and conveyor belt motor status indicating that the conveyor belt motor is in a power-off or standby state and that the conveyor belt motor speed signal is 0. The operation vehicle arrival node refers to the node where the airport conveyor belt trolley arrives at the designated operation position and is ready to begin operation. The airport conveyor belt trolley arriving within the preset operation electronic fence indicates that the airport conveyor belt trolley has arrived at the designated operation position; the vehicle drive motor speed being 0, or the vehicle being powered off, indicates that the airport conveyor belt trolley is in a stopped state and ready to begin operation; the conveyor belt motor being in a power-off or standby state and the conveyor belt motor speed signal being 0 indicates that the conveyor belt is not running. When the above preset characteristic conditions are met, the airport conveyor belt trolley can be considered to be at the operation vehicle arrival node.

[0009] In some embodiments, the target operation node is a node close to an aircraft. The preset characteristic conditions corresponding to a node close to an aircraft include: vehicle positioning information indicating that the airport conveyor belt is within a preset operation electronic fence, and the duration of the airport conveyor belt being within the preset operation electronic fence is greater than a first duration; the vehicle drive motor status indicating that the vehicle drive motor is rotating in the forward direction; the vehicle speed being less than a first vehicle speed threshold; and the conveyor belt motor status indicating that the conveyor belt motor speed is 0. A node close to an aircraft refers to a node where the airport conveyor belt approaches the aircraft at a low speed. The vehicle positioning information showing that the airport conveyor belt is continuously within the preset operation electronic fence ensures that the airport conveyor belt is always within the aircraft-approaching operation range, preventing cross-operation conflicts caused by confusion of aircraft positions or accidental entry into adjacent aircraft positions; the vehicle drive motor rotating in the forward direction indicates that the airport conveyor belt is in a forward state, i.e., the direction of the airport conveyor belt's movement is towards the aircraft; and the vehicle speed being less than the first vehicle speed threshold ensures that the vehicle approaches the aircraft at a low speed. When the above preset characteristic conditions are met, the airport conveyor belt is considered to be at a node close to an aircraft.

[0010] In some embodiments, the target operation node is an aircraft docking node. The preset characteristic conditions corresponding to the aircraft docking node include: vehicle positioning information indicating that the airport conveyor belt is within the aircraft cargo door positioning area; vehicle drive motor status indicating that the vehicle drive motor is rotating in the forward direction, the vehicle drive motor speed is less than a speed threshold, and the duration of the vehicle drive motor rotating in the forward direction and the vehicle drive motor speed being less than the speed threshold is greater than a second duration; vehicle docking status indicating that the vehicle has entered a speed-limited mode; the vehicle speed is less than a second speed threshold, and the second speed threshold is less than a first speed threshold. The aircraft docking node refers to the node where the airport conveyor belt is prepared to dock with the aircraft cargo door. The airport conveyor belt trolley is positioned within the aircraft cargo door's positioning area, meaning its positioning data is stable within a precise area near the cargo door, preparing for docking with the aircraft cargo door. The vehicle's drive motor is rotating in the forward direction at a speed below a threshold speed (low forward speed). While the trolley is still moving forward, the drive motor speed is low, and the vehicle speed is below a second speed threshold to ensure it creeps closer to the aircraft. The vehicle then enters a speed-limited mode, restricting its maximum speed and reducing acceleration / deceleration to ensure no high-speed collision or loss of control occurs during approach / docking, protecting aircraft safety. When these preset conditions are met, the airport conveyor belt trolley is considered to be at the aircraft docking node.

[0011] In some embodiments, the target operation node is a docking completion node, and the preset characteristic conditions corresponding to the docking completion node include: the vehicle drive motor status indicates that the speed of the vehicle drive motor is 0. The vehicle hydraulic system signals include outrigger extension signals and platform lifting signals. The vehicle docking status indicates that the airport conveyor belt vehicle has successfully docked with the aircraft door. The conveyor belt motor status indicates that the speed of the conveyor belt motor is greater than 0, and the duration of the conveyor belt motor speed being greater than 0 is greater than a third duration.

[0012] The docking completion node refers to the point at which the airport conveyor belt trolley's working platform is successfully docked with the aircraft cargo door. A vehicle drive motor speed of 0 indicates the airport conveyor belt trolley is at a stop, fulfilling the prerequisite for operation. The outrigger extension signal instructs the hydraulic outriggers to extend downwards and contact the ground to bear part of the vehicle's weight and prevent tipping during operation. The platform lift signal instructs the airport conveyor belt trolley's working platform to be raised to a designated height for docking with the aircraft door. A conveyor belt motor speed greater than 0, and the duration of this greater-than-zero speed exceeding a third time interval, indicates the conveyor belt has begun operation. When these preset characteristic conditions are met, the airport conveyor belt trolley can be considered to have reached the docking completion node.

[0013] In some embodiments, the target work node is a work completion node, and the preset characteristic conditions of the work completion node include: the conveyor belt motor status indicating that the speed of the conveyor belt motor is 0; vehicle hydraulic system signals including outrigger retraction signal and platform lowering signal; vehicle drive motor status indicating that the vehicle drive motor is rotating in reverse; vehicle docking status indicating that the vehicle has exited the speed limit mode; and vehicle positioning information indicating that the airport conveyor belt vehicle is outside the preset work electronic fence.

[0014] The task completion node refers to the point at which the airport conveyor belt truck completes its task. A conveyor belt motor speed of 0 indicates that the conveyor belt has stopped operating; the outrigger retraction signal indicates that the hydraulic outriggers should be retracted to the stop position; the vehicle is only allowed to leave the aircraft position after the outriggers are confirmed to be retracted; the platform lowering signal indicates that the work platform has descended to a safe driving height, signifying that loading and unloading are complete and the equipment has returned to driving status; this, along with outrigger retraction, can serve as a condition for the airport conveyor belt truck to "prepare to leave"; the vehicle drive motor rotating in reverse indicates that the airport conveyor belt truck is in reverse, i.e., the airport conveyor belt truck is moving away from the aircraft; the vehicle exiting speed-limited mode means that the airport conveyor belt truck has exited the aircraft-approaching operation state, and there is no need to limit the speed of the airport conveyor belt truck; the airport conveyor belt truck being outside the preset work electronic fence indicates that the airport conveyor belt truck has left the work area. When the above preset characteristic conditions are met, the airport conveyor belt truck can be considered to have reached the task completion node.

[0015] In some embodiments, before acquiring the target data features of the airport operation vehicle based on its equipment data stream, the operation node identification method provided in this application further includes: sending an operation start command to the airport operation vehicle and acquiring the equipment data stream of the airport operation vehicle. The operation start command instructs the airport operation vehicle to move from the operation vehicle preparation area to the target node to perform the operation. If the airport operation vehicle is identified as being at an operation completion node, an operation completion command is sent to the airport operation vehicle. The operation completion command instructs the airport operation vehicle to leave the target node and return to the operation vehicle preparation area. Before receiving the operation start command, the airport operation vehicle waits in the operation vehicle preparation area. After receiving the operation start command, the airport operation vehicle arrives at the designated operation location (e.g., the location corresponding to the operation vehicle arrival node) and begins collecting the equipment data stream of the airport operation vehicle, thereby identifying the operation nodes (operation vehicle arrival node, aircraft approach node, aircraft docking node, docking completion node, and operation completion node). When the airport work vehicle is identified as being at a work completion node, the work completion node indicates that the airport work vehicle has completed the current work. A work completion instruction is sent to the airport work vehicle, instructing the airport work vehicle to leave the position corresponding to the target node and return to the work vehicle preparation area to wait for the work start instruction of the next work.

[0016] Secondly, this application provides a job node identification device, which includes an acquisition module and a processing module.

[0017] The aforementioned acquisition module is used to acquire target data features of the airport operation vehicle based on the equipment data stream. The equipment data stream is used to characterize the data generated by the airport operation vehicle from preparation for operation to completion of operation. Target data features include at least one of the following: vehicle positioning information, vehicle drive motor status, operation device motor status, vehicle speed, vehicle docking status, and vehicle hydraulic system signals.

[0018] The aforementioned processing module is used to match the target data features with the preset feature conditions corresponding to each operation node. When the target data features match the preset feature conditions of the target operation node, it is determined that the airport operation vehicle is at the target operation node. Each operation node includes at least the operation vehicle arrival node, aircraft proximity node, aircraft docking node, docking completion node, and operation completion node.

[0019] Thirdly, this application provides a chip or chip system, which includes a processor coupled to a memory for storing programs or instructions. When the program or instructions are executed by the processor, the above-mentioned job node identification method is executed.

[0020] Fourthly, this application provides an electronic device, which includes: a memory and one or more processors; the memory is coupled to one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the electronic device to perform the above-mentioned job node identification method.

[0021] Fifthly, this application provides a computer-readable storage medium storing at least one computer program, which is loaded and executed by a processor to implement the above-mentioned job node identification method.

[0022] Sixthly, this application provides a computer program product, which includes a computer program or instructions, and when the computer program or instructions are executed by a processor, implements the above-mentioned job node identification method.

[0023] The solutions provided in aspects two through six above are used to implement the method provided in aspect one above, and their specific implementations will not be described in detail here. The technical effects corresponding to any implementation method of the solutions provided in aspects two through six above can be found in the technical effects corresponding to any implementation method in aspect one above, and will not be described in detail here.

[0024] It should be noted that any of the possible implementations of any of the above aspects can be combined, provided that the solutions do not contradict each other. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A flowchart illustrating a job node identification method provided in an embodiment of this application; Figure 2 A flowchart illustrating a method for identifying the arrival node of a work vehicle, provided in an embodiment of this application; Figure 3 A flowchart illustrating a method for identifying nearby aircraft nodes provided in an embodiment of this application; Figure 4 A flowchart illustrating an aircraft docking node identification method provided in this application embodiment; Figure 5 A flowchart illustrating a docking completion node identification method provided in an embodiment of this application; Figure 6 A flowchart illustrating a method for identifying job completion nodes provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a job node identification device provided in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0032] In the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0033] In the embodiments of this application, at least one can also be described as one or more, and multiple can be two, three, four or more, and this application does not impose any restrictions.

[0034] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0035] It should be noted that the information (including but not limited to device information, personal information of the subject, etc.), data (including but not limited to data used for analysis, data stored, data displayed, etc.) and signals involved in this application are all authorized by the subject or fully authorized by all parties, and the collection, use and processing of related data must comply with relevant laws, regulations and standards.

[0036] Data collection at airport operation vehicle nodes is crucial for the orderly operation of airport flights. Currently, data collection at airport operation vehicle nodes mainly relies on data input by airport staff on-site to identify the operation nodes of the airport operation vehicles.

[0037] However, this method mainly relies on manual operation, which requires a large investment of human resources and has a low level of digitalization and intelligence. It also suffers from problems such as poor timeliness and susceptibility to errors.

[0038] Based on this, this application provides a method for identifying work nodes. By extracting features from the equipment data stream of an airport work vehicle, target data features are obtained. These target data features reflect the key actions of the airport work vehicle. The target data features are then matched with preset feature conditions corresponding to each work node. These preset feature conditions reflect the key actions of each work node. When the target data features match the preset feature conditions of the target work node, that is, when the key actions of the airport work vehicle match the key actions of the target work node, it indicates that the airport work vehicle is at the target work node. The above process can automatically complete the identification of airport work vehicle work nodes without manual intervention.

[0039] Figure 1 This is a flowchart illustrating a job node identification method provided in an embodiment of this application. This method can be executed by an electronic device.

[0040] like Figure 1 As shown, the job node identification method provided in this application embodiment may include: S101: Based on the equipment data stream of the airport operation vehicle, obtain the target data characteristics of the airport operation vehicle.

[0041] Airport work vehicles are special vehicles used during flight stopovers to perform various support tasks close to the fuselage of parked aircraft.

[0042] For example, airport operation vehicles can be airport conveyor belt trucks, tractor trucks, refueling trucks, clean water trucks, sewage trucks, etc.

[0043] This application describes an example of an airport conveyor belt vehicle. Airport conveyor belt vehicles are used to dock with aircraft doors to transport baggage, cargo, etc., from the ground to the aircraft cargo hold, or to unload baggage, cargo, etc., from the aircraft cargo hold to the ground.

[0044] During the operation of the airport conveyor belt truck, real-time data reflecting its operating status is continuously generated, forming an equipment data stream.

[0045] Equipment data streams are used to characterize the data generated by airport work vehicles from the preparation stage to the completion of the work. Examples include motor current and belt conveyor speed.

[0046] Specifically, after acquiring the device data stream, data features are extracted from the continuous device data stream, and then feature sequences representing key actions, i.e. target data features, are extracted from the data features.

[0047] For example, the target data features include at least one of the following: vehicle positioning information, vehicle drive motor status, working device motor status, vehicle speed, vehicle docking status, and vehicle hydraulic system signals.

[0048] Vehicle location information is used to reflect the location of airport operation vehicles. For example, vehicle location information can be Global Navigation Satellite System (GNSS) information.

[0049] The status of the vehicle's drive motor reflects its operating state, thus determining whether the airport work vehicle is stopped, moving forward, reversing, or crawling. For example, the drive motor status can include its speed and direction. When the drive motor speed is 0, the vehicle is stationary; when the drive motor speed is greater than 0 or the direction is forward, the airport work vehicle is moving forward; when the drive motor speed is less than 0 or the direction is reverse, the airport work vehicle is reversing.

[0050] In some embodiments, the motor status of the working device can be the conveyor belt motor status, which reflects the operating status of the conveyor belt. The conveyor belt motor status can include the motor speed, direction of rotation, etc. For example, when the conveyor belt motor speed is 0, it indicates that the conveyor belt has not started working, or the work has been paused / completed; when the conveyor belt motor speed is greater than 0 or the direction of rotation is forward, it indicates that the conveyor belt is transporting baggage / cargo from the ground to the aircraft cargo hold for drop-off operations; when the conveyor belt motor speed is less than 0 or the direction of rotation is reverse, it indicates that the conveyor belt is transporting baggage / cargo from the aircraft cargo hold to the ground for pick-up operations.

[0051] The vehicle docking status is used to distinguish whether an airport work vehicle is in normal driving or docking operation. For example, when a conveyor belt truck enters an aircraft stand and prepares to dock with the cargo hold door, it can enter docking status in the following way: Method 1: The driver presses the "Dock-on Mode / Speed ​​Limit Mode" button, and the airport work vehicle enters the dock-on mode.

[0052] Method 2: The system can automatically determine the vehicle's proximity to the aircraft based on vehicle location information, such as the airport work vehicle entering a preset work electronic fence, vehicle speed indicating a decrease in speed, and the status of the work device motor. For example, vehicle hydraulic system signals are used to reflect the hydraulic actions and status of the outriggers and work platform. For instance, an outrigger extension signal indicates that the hydraulic outrigger is fully extended and under pressure; an outrigger retraction signal indicates that the hydraulic outrigger is fully retracted to the driving position; a platform rise signal indicates that the conveyor work platform is raised to the aircraft-proximity working height range; and a platform lower signal indicates that the conveyor platform has lowered to the lowest driving and storage position.

[0053] In addition, before obtaining the target data characteristics of the airport operation vehicle based on the equipment data stream of the airport operation vehicle, an operation start command can be sent to the airport operation vehicle.

[0054] The operation start command is used to instruct the airport operation vehicle to drive from the operation vehicle preparation area to the target node to perform the operation.

[0055] For example, when the airport work vehicle is idle, i.e., when there is no work task, it can be parked in the work vehicle preparation area, waiting for the work start instruction to be issued. When the airport work vehicle receives the work start instruction issued by the background dispatch system, it drives from the work vehicle preparation area to the location corresponding to the work vehicle arrival node of this work task, ready to start the work.

[0056] Step S102: Match the target data features with the preset feature conditions corresponding to each operation node. When the target data features match the preset feature conditions of the target operation node, determine that the airport operation vehicle is at the target operation node.

[0057] For example, each operation node includes at least the operation vehicle arrival node, the aircraft approach node, the aircraft docking node, the docking completion node, and the operation completion node.

[0058] The following are the preset feature conditions corresponding to each task node.

[0059] In some embodiments, the preset characteristic conditions corresponding to the arrival of the work vehicle at the node include: Condition 1: The vehicle location information indicates that the airport conveyor belt has arrived within the preset electronic fence for operation.

[0060] Among them, the preset operation electronic fence is used to indicate the preset operation range centered on the parking position of the target aircraft for airport conveyor belt operations.

[0061] Condition 2: The vehicle drive motor status indicates that the speed of the vehicle drive motor is 0, or the vehicle drive motor status indicates that the vehicle is in a turned-off state.

[0062] For example, the duration during which the vehicle drive motor rotates at 0 or the vehicle is in a turned-off state can be obtained, when the duration is greater than 30 seconds.

[0063] Condition 3: Conveyor Belt Motor Status Indicator: The conveyor belt motor is in a power-off or standby state and the motor speed signal is 0.

[0064] In one specific embodiment Figure 2 A method for identifying the arrival node of a work vehicle is presented. For example... Figure 2 As shown, the method may include the following steps: S201, Obtain the target data features.

[0065] The description of this step can be found in S101 above, and will not be repeated here.

[0066] S202, compare the target data features with the following preset feature conditions: the vehicle positioning information indicates that it has arrived within the preset operation electronic fence, the speed of the vehicle drive motor is 0, and the status of the conveyor belt motor indicates that the conveyor belt motor is in a power-off state.

[0067] S203, confirm that the airport operation vehicle is at the operation vehicle arrival node.

[0068] Specifically, if the target data features meet the following preset feature conditions: the vehicle positioning information indicates that it has arrived within the preset electronic fence for operation, the speed of the vehicle drive motor is 0, and the status of the conveyor belt motor indicates that the conveyor belt motor is in a power-off state, then the airport operation vehicle is determined to be at the operation vehicle arrival node.

[0069] In some embodiments, the preset characteristic conditions corresponding to the nearby aircraft node include: Condition 1: The vehicle location information indicates that the airport conveyor belt is within the preset operation electronic fence, and the duration of the airport conveyor belt being within the preset operation electronic fence is greater than the first duration.

[0070] The first duration can be set according to the actual situation. For example, the first duration can be 3 seconds. This application embodiment does not limit the value of the first duration.

[0071] Condition 2: Vehicle drive motor status indicates that the vehicle drive motor is rotating in the forward direction.

[0072] Understandably, the fact that the vehicle's drive motor is rotating in the forward direction indicates that the vehicle is moving forward.

[0073] Condition 3: The vehicle speed is less than the first speed threshold.

[0074] The vehicle speed can be calculated based on data such as the rotational speed of the vehicle's drive motor. The first vehicle speed threshold can be set according to actual conditions; for example, the value of the first vehicle speed threshold can be in the range of 5 km / h to 6 km / h. This application embodiment does not limit the value of the first vehicle speed threshold.

[0075] Condition 4: Conveyor Belt Motor Status Indicator: The speed of the conveyor belt motor is 0.

[0076] When the system is close to the aircraft node, the conveyor belt motor is usually not started yet. At this time, the system continuously monitors the status of the conveyor belt motor, and the speed signal of the conveyor belt motor remains at 0.

[0077] In one specific embodiment Figure 3 A method for identifying nearby aircraft nodes is presented. Figure 3 As shown, the method may include the following steps: S301, Obtain target data features.

[0078] The description of this step can be found in S101 above, and will not be repeated here.

[0079] S302, compare the target data features with the following preset feature conditions: the vehicle positioning information indicates that the airport conveyor belt is within the preset operation electronic fence, and the duration of the airport conveyor belt being within the preset operation electronic fence is greater than the first duration, the vehicle drive motor is rotating in the forward direction, the vehicle speed is less than the first vehicle speed threshold, and the rotation speed of the conveyor belt motor is 0.

[0080] S303, confirming that the airport operation vehicle is located near the aircraft node.

[0081] Specifically, if the target data features meet the following preset feature conditions: the vehicle positioning information indicates that the airport conveyor belt is within the preset operation electronic fence, and the duration of the airport conveyor belt being within the preset operation electronic fence is greater than a first duration, the vehicle drive motor is rotating in the forward direction, the vehicle speed is less than a first vehicle speed threshold, and the rotation speed of the conveyor belt motor is 0, then it is determined that the airport operation vehicle is near the aircraft node.

[0082] In some embodiments, the preset characteristic conditions corresponding to the aircraft docking node include: Condition 1: The vehicle location information indicates that the airport conveyor belt is within the positioning area of ​​the aircraft cargo door.

[0083] Condition 2: The vehicle drive motor status is characterized by the vehicle drive motor being in the forward rotation direction, the vehicle drive motor speed being less than the speed threshold, and the duration of the vehicle drive motor being in the forward rotation direction and the vehicle drive motor speed being less than the speed threshold being greater than the second duration.

[0084] The speed threshold can be set according to actual conditions; for example, the speed threshold can be from 400 rpm to 800 rpm. This application embodiment does not limit the value of the speed threshold. A speed lower than the speed threshold indicates that the airport conveyor belt is slowly approaching the aircraft fuselage.

[0085] Condition 3: The vehicle's docking status indicates that the vehicle has entered the speed-limited mode.

[0086] Condition 4: The vehicle speed is less than the second speed threshold, and the second speed threshold is less than the first speed threshold.

[0087] The second vehicle speed threshold can be set according to the actual situation. For example, the value range of the second vehicle speed threshold can be from 0.5m / s to 1m / s. This application embodiment does not limit the value of the second vehicle speed threshold.

[0088] In addition, at the aircraft docking point, the conveyor belt motor may be ready to start, and the system begins to continuously monitor the speed and direction signals of the conveyor belt motor, but at this time the effective working direction of the conveyor belt motor is not recorded.

[0089] In one specific embodiment Figure 4 A method for identifying aircraft docking nodes is presented. For example... Figure 4 As shown, the method may include the following steps: S401, Obtain target data features.

[0090] The description of this step can be found in S101 above, and will not be repeated here.

[0091] S402, compare the target data features with the following preset feature conditions: the vehicle positioning information indicates that the airport conveyor belt is in the positioning area of ​​the aircraft cargo door, and the vehicle drive motor is rotating in the forward direction, the speed of the vehicle drive motor is less than the speed threshold, and the duration of the vehicle drive motor rotating in the forward direction and the speed of the vehicle drive motor being less than the speed threshold is greater than the second duration, and the vehicle enters the speed limit mode, and the vehicle speed is less than the second speed threshold.

[0092] S403, confirming that the airport work vehicle is at the aircraft docking point.

[0093] Specifically, if the target data features meet the following preset feature conditions: the vehicle positioning information indicates that the airport conveyor belt is located within the aircraft cargo door positioning area, and the vehicle drive motor is rotating in the forward direction, the speed of the vehicle drive motor is less than the speed threshold, and the duration of the vehicle drive motor rotating in the forward direction and the speed of the vehicle drive motor being less than the speed threshold is greater than the second duration, and the vehicle enters the speed limit mode, and the vehicle speed is less than the second vehicle speed threshold, then the airport operation vehicle is determined to be at the aircraft docking node.

[0094] In some embodiments, the preset characteristic conditions corresponding to the docking completed node include: Condition 1: Vehicle drive motor status indicates that the speed of the vehicle drive motor is 0.

[0095] Specifically, when the speed of the vehicle drive motor changes from a low speed to 0, wait for the vehicle to come to a complete stop, that is, the vehicle speed remains at 0 for a preset time for confirming stillness, such as 30 seconds.

[0096] Condition 2: The vehicle's hydraulic system signals include outrigger extension signals and platform lifting signals.

[0097] The outrigger extension signal is used to indicate that the hydraulic outriggers should be extended downwards and in contact with the ground before operation to bear part of the vehicle's weight and prevent tipping during lifting. For example, the outrigger extension signal can be a status signal given by a detection device in the vehicle's hydraulic system indicating that the outriggers are fully extended and locked / under pressure.

[0098] The platform lift signal is used to indicate that the working platform (boom / worktable) of the airport conveyor belt is raised to a designated height (aligned with the aircraft cargo door) via hydraulic cylinders. For example, the platform lift signal can be a status signal from a detection device located in the vehicle's hydraulic system indicating that the working platform has reached the designated height.

[0099] Condition 3: The vehicle docking status indicates that the airport conveyor belt has successfully docked with the aircraft door.

[0100] Condition 4: The state of the conveyor belt motor indicates that the speed of the conveyor belt motor is greater than 0, and the duration of the speed of the conveyor belt motor being greater than 0 is greater than the third duration.

[0101] The third duration can be set according to the actual situation. For example, the value of the third duration can be from 1 second to 2 seconds. This application embodiment does not limit the value of the third duration.

[0102] It is understandable that the conveyor belt motor speed is greater than 0, and the duration of the conveyor belt motor speed being greater than 0 is greater than the third time period, indicating that the conveyor belt has started working.

[0103] In addition, the direction signal of the conveyor belt motor can be obtained, which can be either forward or reverse.

[0104] If the turn signal is forward, the operation is determined to be a delivery operation; if the turn signal is reverse, the operation is determined to be a receiving operation.

[0105] Among them, the delivery operation is used to instruct goods to be transferred from the airport conveyor belt to the aircraft, and the receiving operation is used to instruct goods to be transferred from the aircraft to the airport conveyor belt.

[0106] For example, the direction signal of the conveyor belt motor can be determined by analyzing the motor controller instructions. If the direction signal is "forward," the system infers and records the current operation as a delivery operation; if the direction signal is "reverse," the system infers and records the current operation as a receiving operation.

[0107] In one specific embodiment Figure 5 A method for identifying nodes that have completed docking is presented. For example... Figure 5 As shown, the method may include: S501, Obtain target data features.

[0108] The description of this step can be found in S101 above, and will not be repeated here.

[0109] S502, compare the target data features with the following preset feature conditions: the vehicle drive motor speed is 0, and the vehicle hydraulic system signals include outrigger extension signal and platform lifting signal, and the vehicle docking status indicates that the airport conveyor belt vehicle has successfully docked with the aircraft door, and the conveyor belt motor speed is greater than 0, and the duration of the conveyor belt motor speed being greater than 0 is greater than the third duration.

[0110] S503, confirming that the airport work vehicle is at the docking completion point.

[0111] Specifically, if the target data features meet the following preset feature conditions: the vehicle drive motor speed is 0, and the vehicle hydraulic system signals include outrigger extension signal and platform lifting signal, and the vehicle docking status indicates that the airport conveyor belt vehicle has successfully docked with the aircraft door, and the conveyor belt motor speed is greater than 0, and the duration of the conveyor belt motor speed being greater than 0 is greater than the third duration, then the airport operation vehicle is determined to be at the docking completion node.

[0112] In some embodiments, the preset characteristic conditions of a job completion node include: Condition 1: The state of the conveyor belt motor indicates that the speed of the conveyor belt motor is 0.

[0113] Understandably, if the conveyor belt motor's speed is 0, it means that the conveyor belt has stopped running.

[0114] Condition 2: The vehicle's hydraulic system signals include outrigger retraction signals and platform lowering signals.

[0115] The outrigger retraction signal is used to indicate that the hydraulic outriggers should be retracted to the stop position, indicating that "the outriggers have been fully retracted, lifted off the ground, and do not obstruct vehicle movement." Only after the outriggers are confirmed to be retracted can the vehicle leave the parking position (to prevent airport conveyor belt vehicles from carrying outriggers).

[0116] The platform drop signal is used to indicate that the work platform has descended to a safe driving height, signifying that loading and unloading are complete and the equipment has returned to driving status. It can be used together with the outrigger retraction as a condition for the airport conveyor belt vehicle to "prepare for evacuation".

[0117] Condition 3: Vehicle drive motor status indicates that the vehicle drive motor is rotating in the opposite direction.

[0118] Specifically, when the vehicle drive motor speed is less than 0 or a specific reverse indicator is detected, it indicates that the vehicle drive motor is rotating in the opposite direction, meaning that the vehicle is reversing and moving away from the aircraft.

[0119] Condition 4: The vehicle's docking status indicates that the vehicle has exited the speed limit mode.

[0120] The vehicle has exited the speed-limited (machine-assisted operation) mode, meaning it has deactivated the machine-assisted speed control and returned to normal driving or standby status. Condition 5: Vehicle location information indicates that the airport conveyor belt is outside the preset electronic fence for operations.

[0121] Specifically, when the location data of the airport conveyor belt falls outside the preset electronic fence for operation, it is determined that the airport conveyor belt has left the aircraft docking operation area.

[0122] Furthermore, if the airport operation vehicle is identified as being at a completion point, a completion instruction is sent to the airport operation vehicle.

[0123] The task completion instruction is used to instruct the airport work vehicle to leave the target node and return to the work vehicle preparation area.

[0124] In one specific embodiment Figure 6 A method for identifying job completion nodes is presented. For example... Figure 6 As shown, the method may include the following steps: S601, Obtain target data features.

[0125] The description of this step can be found in S101 above, and will not be repeated here.

[0126] S602, compare the target data features with the following preset feature conditions: the conveyor belt motor speed is 0, and the vehicle hydraulic system signals include outrigger retraction signal and platform drop signal, and the vehicle drive motor is rotating in the opposite direction, and the vehicle exits the speed limit mode.

[0127] S603, confirm that the airport operation vehicle is at the operation completion node.

[0128] Specifically, if the target data features meet the following preset feature conditions: the conveyor belt motor speed is 0, and the vehicle hydraulic system signals include outrigger retraction signals and platform lowering signals, and the vehicle drive motor is rotating in the opposite direction, and the vehicle exits the speed limit mode, then the airport operation vehicle is determined to be at the operation completion node.

[0129] In summary, the technical solution provided in this application extracts features from the equipment data stream of the airport operation vehicle to obtain target data features. These target data features reflect the key actions of the airport operation vehicle. The target data features are then matched with preset feature conditions corresponding to each operation node. These preset feature conditions reflect the key actions of each operation node. When the target data features match the preset feature conditions of the target operation node, that is, when the key actions of the airport operation vehicle match the key actions of the target operation node, it indicates that the airport operation vehicle is at the target operation node. The above process can automatically complete the identification of airport operation vehicle operation nodes without manual intervention.

[0130] In addition, other feasible implementation methods can also be used to capture images of the operation, including the aircraft cargo door and the airport operation vehicle, through an image acquisition device. The operation node of the airport operation vehicle can be determined based on the operation images and the vehicle status data (such as the status of the vehicle drive motor, vehicle speed, and the status of the operation device motor).

[0131] If the airport work vehicle is not identified in the operation image, it means that the airport work vehicle has not approached the aircraft or has already left the aircraft.

[0132] If the image of the operation includes an airport operation vehicle, it indicates that the vehicle is close to the aircraft. Combining this with the vehicle's status data can further determine the operation node where the vehicle is located. For details on how to determine the operation node of the airport operation vehicle based on its status data, please refer to the description in S102 above. Alternatively, the operation image can be input into a monocular depth estimation model or a binocular stereo vision model to determine the distance between the airport operation vehicle and the aircraft. Based on this distance, the operation node of the airport operation vehicle can be determined.

[0133] The foregoing mainly describes the solution provided in this application. Accordingly, this application also provides a job node identification device, which is used to implement the above-described method embodiments.

[0134] Figure 7 This is a schematic diagram of the structure of a job node identification device provided in an embodiment of this application, as shown below. Figure 7 As shown, the job node identification device 700 may include an acquisition module 701 and a processing module 702.

[0135] The acquisition module 701 is used to execute Figure 1The illustrated method involves the operation of S101; the processing module 702 is used to execute... Figure 1 The illustrated method shows the operation of S102.

[0136] In some embodiments, the job node identification device includes hardware structures and / or software modules corresponding to the execution of each function in order to achieve the above-described functions. Those skilled in the art will readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0137] This application embodiment can divide the job node identification device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one job node identification module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0138] like Figure 8 As shown, the electronic device provided in this application embodiment may include a processor 801, a bus 802, a communication interface 803, and a memory 804. The processor 801, the memory 804, and the communication interface 803 communicate with each other via the bus 802. It should be understood that this application does not limit the number of processors and memories in the network device.

[0139] The 802 bus can be a PCI bus, an Extended Industry Standard Architecture (EISA) bus, or a UB bus, etc. Buses can be divided into address buses, data buses, control buses, etc. For ease of representation, Figure 8 The bus 802 may be represented by a single line, but this does not mean that there is only one bus or one type of bus. The bus 802 may include a path for transmitting information between various components of the network device (e.g., memory 804, processor 801, communication interface 803).

[0140] Processor 801 may include any one or more processors such as CPU, graphics processing unit (GPU), microprocessor (MP), or digital signal processor (DSP).

[0141] Memory 804 may include volatile memory, such as random access memory (RAM). Memory 804 may also include non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid state drive (SSD).

[0142] The communication interface 803 uses transceiver modules, such as, but not limited to, network interface cards and transceivers, to enable communication between network devices and other devices or communication networks.

[0143] The memory 804 stores executable program code, and the processor 801 executes the executable program code to implement the functions of the aforementioned method embodiments. That is, the memory 804 stores instructions for executing the above-described job node identification method.

[0144] This application also provides a chip or chip system, which includes a processor coupled to a memory for storing programs or instructions. When the program or instructions are executed by the processor, the above-mentioned job node identification method is executed.

[0145] This application also provides a computer-readable storage medium storing at least one computer program, which is loaded and executed by a processor to implement the job node identification method provided in the above-described method embodiments.

[0146] This application also provides a computer program product, which includes a computer program or instructions that, when executed by a processor, implement the job node identification method provided in the above-described method embodiments.

[0147] Through the above description of the implementation methods, those skilled in the art will clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the module can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, modules, and units described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0148] Since the job node identification module, computer-readable storage medium, and computer program product in the embodiments of the present invention can be applied to the above method, the technical effects obtained can also be referred to the above method embodiments, and the embodiments of the present invention will not be repeated here.

[0149] The method steps in this embodiment can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a network device. Of course, the processor and storage medium can also exist as discrete components in the network device.

[0150] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer programs or instructions. When a computer program or instruction is loaded and executed on a computer, the processes or functions of the embodiments of this application are performed, in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable module. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, a computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video disc (DVD); or it can be a semiconductor medium, such as a solid-state drive (SSD).

[0151] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for identifying job nodes, characterized in that, The method includes: Based on the equipment data stream of the airport operation vehicle, the target data features of the airport operation vehicle are obtained; the equipment data stream is used to characterize the data generated by the airport operation vehicle from preparation for operation to completion of operation; the target data features include at least one of the following: vehicle positioning information, vehicle drive motor status, operation device motor status, vehicle speed, vehicle docking status, and vehicle hydraulic system signals. The target data features are matched with the preset feature conditions corresponding to each operation node. When the target data features match the preset feature conditions of the target operation node, the airport operation vehicle is determined to be at the target operation node. Each operation node includes at least the operation vehicle arrival node, the aircraft proximity node, the aircraft docking node, the docking completion node, and the operation completion node.

2. The method according to claim 1, characterized in that, The airport operation vehicle is an airport belt conveyor vehicle; the motor status of the operation device includes the status of the conveyor belt motor.

3. The method according to claim 2, characterized in that, The target work node is the arrival node of the work vehicle, and the preset feature conditions corresponding to the arrival node of the work vehicle include: The vehicle positioning information indicates that the airport conveyor belt has arrived within the preset operation electronic fence, which is used to indicate the preset operation range centered on the parking position of the target aircraft operated by the airport conveyor belt. The vehicle drive motor state indicates that the speed of the vehicle drive motor is 0, or the vehicle drive motor state indicates that the vehicle is in a turned-off state. The state of the conveyor belt motor indicates that the conveyor belt motor is in a power-off or standby state and the speed signal of the conveyor belt motor is 0.

4. The method according to claim 3, characterized in that, The target operation node is the nearby aircraft node, and the preset characteristic conditions corresponding to the nearby aircraft node include: The vehicle location information indicates that the airport conveyor belt is within the preset operation electronic fence, and the duration for which the airport conveyor belt is within the preset operation electronic fence is greater than the first duration; The vehicle drive motor status indicates that the vehicle drive motor is rotating in the forward direction; The vehicle speed is less than a first vehicle speed threshold; The state of the conveyor belt motor indicates that the rotational speed of the conveyor belt motor is 0.

5. The method according to claim 4, characterized in that, The target operation node is an aircraft docking node, and the preset characteristic conditions corresponding to the aircraft docking node include: The vehicle positioning information indicates that the airport conveyor belt is located within the aircraft cargo door positioning area; The vehicle drive motor state indicates that the vehicle drive motor is rotating in the forward direction, the speed of the vehicle drive motor is less than the speed threshold, and the duration of the vehicle drive motor being rotating in the forward direction and the speed of the vehicle drive motor being less than the speed threshold is greater than the second duration. The vehicle docking status indicates that the vehicle has entered speed-limited mode; The vehicle speed is less than a second vehicle speed threshold, and the second vehicle speed threshold is less than the first vehicle speed threshold.

6. The method according to claim 5, characterized in that, The target operation node is a docking completion node, and the preset characteristic conditions corresponding to the docking completion node include: The vehicle drive motor state indicates that the speed of the vehicle drive motor is 0. The vehicle hydraulic system signals include outrigger extension signals and platform lifting signals; The vehicle docking status indicates that the airport conveyor belt vehicle has successfully docked with the aircraft door. The state of the conveyor belt motor indicates that the rotational speed of the conveyor belt motor is greater than 0, and the duration of the rotational speed of the conveyor belt motor being greater than 0 is greater than the third duration.

7. The method according to claim 6, characterized in that, The target task node is a task completion node, and the preset characteristic conditions of the task completion node include: The state of the conveyor belt motor indicates that the rotational speed of the conveyor belt motor is 0; The vehicle hydraulic system signals include outrigger retraction signals and platform lowering signals; The vehicle drive motor status indicates that the vehicle drive motor is rotating in the opposite direction. The vehicle docking status indicates that the vehicle has exited the speed limit mode. The vehicle location information indicates that the airport conveyor belt is outside the preset electronic fence for operations.

8. The method according to any one of claims 1-7, characterized in that, Before obtaining the target data features of the airport operation vehicle from the equipment data stream based on the airport operation vehicle, the method further includes: Send a work start command to the airport work vehicle and obtain the equipment data stream of the airport work vehicle; wherein, the work start command is used to instruct the airport work vehicle to drive from the work vehicle preparation area to the target node to perform the work; If the airport work vehicle is detected to be at a work completion node, a work completion instruction is sent to the airport work vehicle; the work completion instruction is used to instruct the airport work vehicle to leave the target node and return to the work vehicle preparation area.

9. A work node identification device, characterized in that, The device includes: The acquisition module is used to acquire target data features of the airport operation vehicle based on the equipment data stream of the airport operation vehicle; the equipment data stream is used to characterize the data generated by the airport operation vehicle from preparation for operation to completion of operation; the target data features include at least one of the following: vehicle positioning information, vehicle drive motor status, operation device motor status, vehicle speed, vehicle docking status, and vehicle hydraulic system signals. The processing module is used to match the target data features with the preset feature conditions corresponding to each operation node. When the target data features match the preset feature conditions of the target operation node, the airport operation vehicle is determined to be at the target operation node. Each operation node includes at least the operation vehicle arrival node, the aircraft proximity node, the aircraft docking node, the docking completion node, and the operation completion node.

10. An electronic device, characterized in that, The electronic device includes: a memory and one or more processors; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code including computer instructions, and the one or more processors call the computer instructions to cause the electronic device to perform the job node identification method as described in any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one computer program, which is loaded and executed by a processor to implement the job node identification method as described in any one of claims 1 to 8.

12. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when executed by a processor, implement the job node identification method as described in any one of claims 1 to 8.

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