Differentiated maintenance method and system for civil aviation airport refueling bolt

Abstract

The invention discloses a differentiated maintenance method and system for civil aviation airport refueling bolts, and relates to the technical field of civil aviation airport safety. In order to solve the defects that an existing refueling bolt guide valve cannot be subjected to differential maintenance, excessive maintenance and insufficient maintenance are serious, the equipment reliability is poor and the maintenance cost is high, the corresponding relation between a machine position number and a refueling bolt number is obtained, and the equipment category of the refueling bolt is divided according to the use frequency of the refueling bolt; collecting maintenance data of all the refueling bolts, and establishing a knowledge base module; establishing a task execution module, obtaining corresponding equipment maintenance schemes from the knowledge base module, and distributing the equipment maintenance schemes to corresponding operators; a maintenance operation step for the refueling bolt is generated; maintenance is completed according to the equipment maintenance scheme, a maintenance result is tested, and a maintenance condition is reported; and information display is carried out on all knowledge. The method is mainly used for carrying out differential maintenance on the guide valve of the refueling bolt and other refueling bolt accessory equipment.

Description

Technical Field

[0001] The present invention relates to the field of civil aviation airport safety technology, and in particular to a differentiated maintenance method and system for a fuel hydrant at a civil aviation airport. Background Art

[0002] Fuel hydrant equipment is a device used to refuel aircraft, mainly used in trunk airports with apron fuel supply pipelines. Fuel hydrant equipment is usually located on the apron and connected to the underground fuel delivery system to transport fuel to the aircraft's fuel tank through pipelines. The design and operation of the fuel hydrant must meet strict safety standards to prevent safety accidents such as fuel leakage and fire.

[0003] There are two valves that control the on and off of oil products. The first is the fuel hydrant, and the second is the fuse valve (also called the maintenance valve) located at the bottom of the fuel hydrant. For fuel hydrants, the most common failure is the pilot valve. Therefore, the maintenance of the pilot valve is the key work of fuel hydrant maintenance operations, and a maintenance method needs to be designed for the maintenance of the pilot valve.

[0004] In recent years, new or expanded facilities have been built at the same time, so the failure rate of newer equipment is lower. Based on this background, for airports where the oil supply pipeline has been in use for a long time, the failure rate of equipment has begun to increase. At the same time, due to the limited number of personnel, the pressure of equipment maintenance is relatively high. At present, most airports have two maintenance modes for guide valves. One is to replace or repair the faulty equipment after the equipment fails, and the other is to replace the guide valves of a certain area on time. The two methods are not mutually exclusive and can be carried out at the same time.

[0005] However, the safety management requirements of civil aviation airports are increasing day by day, and oil leakage of equipment while in use is not acceptable, so the first method is not applicable to current management requirements.

[0006] The second method is mainly based on historical fault data. Since newly built or expanded airports do not have a researchable data basis, they rely only on the experience of equipment maintenance personnel. In addition, since the number of equipment at different stands is different and the types of aircraft parked are different, the frequency of equipment use is different. Therefore, using the second method to replace the pilot valve as a whole will result in over-maintenance and under-maintenance of some pilot valves, and will also cause a waste of resources and manpower.

[0007] Therefore, there is a need for a differentiated maintenance method and system for civil aviation airport refueling hydrants that can improve the maintenance efficiency of the guide valve, increase equipment reliability, and reduce maintenance costs. Summary of the invention

[0008] In order to solve the defects of the existing refueling hydrant guide valve that cannot be maintained in a differentiated manner, over-maintenance and under-maintenance are serious, the equipment reliability is poor, and the maintenance cost is high, the present invention provides a differentiated maintenance method and system for refueling hydrants at civil aviation airports that can improve the maintenance efficiency of the guide valve, improve equipment reliability, and reduce maintenance costs.

[0009] The differentiated maintenance method of a civil aviation airport refueling hydrant according to the present invention comprises the following steps:

[0010] S1. Obtain the correspondence between the aircraft position number and the fuel hydrant number, and classify the equipment categories of the fuel hydrants according to the frequency of use of the fuel hydrants;

[0011] S2. Collect the maintenance data of all fuel hydrants and establish a knowledge base module;

[0012] S3, establishing a task execution module, wherein the task execution module includes a maintenance task execution module and a repair task execution module, wherein the maintenance task execution module includes a task identification module, a task distribution module and a task execution module,

[0013] The task identification module is used to obtain corresponding equipment maintenance plans and equipment repair plans from the knowledge base module;

[0014] The task distribution module is used to distribute tasks according to the division of labor of operators in the equipment maintenance plan;

[0015] The task execution module is used to generate maintenance operation steps for the fuel hydrant according to the distributed apron operation requirements, weather warnings and / or maintenance tutorials;

[0016] The maintenance task execution module includes a maintenance information reporting module;

[0017] The maintenance information reporting module is used to complete maintenance according to the equipment maintenance plan, test the maintenance results and report the maintenance situation;

[0018] S4. Establish an information display module, which includes a maintenance knowledge display module, a repair knowledge display module and a test knowledge display module. The repair knowledge display module is used to display the equipment maintenance plan in the knowledge base module; the maintenance knowledge display module is used to display maintenance tutorials and maintenance operation steps; the test knowledge display module is used to display test tutorials and test indicators.

[0019] Further: in S1, the equipment categories of the gas hydrant include common equipment, uncommon equipment, unique equipment and unused equipment.

[0020] Further: in S2, the maintenance data includes historical maintenance records of the fuel hydrant, the correspondence between the aircraft position number and the fuel hydrant number, the opening status of the fuse valve belonging to the fuel hydrant, the usage data of the fuel hydrant and / or the equipment model.

[0021] Furthermore: the correspondence between the aircraft position number and the fuel hydrant number includes one-to-many and / or one-to-one; the usage data of the fuel hydrant includes usage time, number of uses, fuel hydrant status and / or fuel hydrant location; for a newly used fuel hydrant, the time of commissioning is used as the last equipment maintenance time.

[0022] Further: in S2, the knowledge base module includes equipment maintenance plans and equipment repair plans, the equipment maintenance plans include maintenance cycles, division of labor among operators, apron operation requirements, weather warnings and / or maintenance tutorials, and the equipment repair plans include repair tools, repair steps and / or post-repair inspection plans.

[0023] Further: the maintenance cycle is calculated as follows:

[0024] Obtain the maintenance records of apron equipment and the usage data of refueling hydrants, and analyze the equipment failure cycle N corresponding to different types of refueling hydrants T , according to the equipment failure cycle N T and the last maintenance time before the equipment failed T j Get the cycle calculation number N;

[0025] N=N T / N j ;

[0026] The mode N of the number of period calculations N z As the fault cycle, in the fault cycle N z The equipment maintenance needs to be completed before the equipment maintenance period is T j (N z -1).

[0027] Further: to ensure that each maintenance is completed before the expiration of the maintenance cycle, the delay deviation is used to adjust the maintenance cycle;

[0028] Determine the maintenance time before failure T j , the number of staff n, delay deviation δ = 0, the number of times the task is delayed;

[0029]

[0030] Among them, R z is the total number of tasks in the maintenance cycle, T z1 is the time required to increase when the number of people remains unchanged, and δ is the delay deviation within the maintenance cycle.

[0031] The differentiated maintenance system for fuel hydrants at civil aviation airports described in the present invention includes a data collection module, a risk warning module, and a task execution module;

[0032] The data acquisition module is used to obtain the use information of the refueling hydrant. The refueling information needs to be filled in by the mobile terminal, and the data acquisition module pushes the collected information to the task execution module.

[0033] The risk warning module is used to obtain real-time weather information through weather monitoring equipment according to the apron operation risks under different weather conditions, and push different operation risk information to the task execution module.

[0034] Furthermore, the refueling information includes the number of the refueling hydrant, the time the refueling hydrant is used, the refueling time and / or the refueling amount.

[0035] The beneficial effects of the present invention are:

[0036] The present invention designs a maintenance mode based on equipment structure, usage frequency and historical failure rate, which improves maintenance efficiency, reduces operating costs and improves equipment reliability. During the operation of the apron fuel supply network, a method and system for performing differential maintenance on different types of fuel hydrant guide valves are designed by analyzing the fault data of the fuel hydrant guide valves, thereby improving the efficiency and effect of maintenance, reducing maintenance costs and extending the service life of the equipment.

[0037] This application increases the accuracy of maintenance and avoids duplication of work, thereby solving the waste of human resources and improving the operating quality of apron pipe network equipment and facilities. Through differentiated maintenance, the replacement frequency of some equipment can be reduced, equipment can be managed in an orderly manner, and equipment can be replaced uniformly by batch, effectively reducing the equipment failure rate within the maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a flowchart of the differentiated maintenance method of fuel hydrants at civil aviation airports;

[0039] Figure 2 It is a structural diagram of the differentiated maintenance system of the fuel hydrant at a civil aviation airport;

[0040] Figure 3 This is the risk warning interface diagram;

[0041] Figure 4 It is a technical and communication interface diagram

[0042] Figure 5 This is the task distribution interface diagram;

[0043] Figure 6This is a diagram of the equipment maintenance interface. DETAILED DESCRIPTION

[0044] The following are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. The embodiments described below are only used to explain the present invention and cannot be interpreted as limitations on the present invention. The protection scope of the present invention should be based on the protection scope of the claims. The embodiments of the present invention are described in detail below. In order to facilitate the description of the present invention and simplify the description, the technical terms used in the specification of the present invention should be interpreted in a broad sense, including but not limited to conventional replacement schemes not mentioned in this application, and also including direct implementation methods and indirect implementation methods.

[0045] Example 1

[0046] Combination Figure 1-Figure 6 This embodiment describes a differentiated maintenance method for a fuel hydrant at a civil aviation airport, including the following steps:

[0047] S1. Obtain the correspondence between the aircraft position number and the fuel hydrant number, and classify the equipment categories of the fuel hydrants according to the frequency of use of the fuel hydrants; the equipment categories of the fuel hydrants include common equipment, uncommon equipment, unique equipment, and unused equipment. According to the frequency of use of the fuel hydrants, they are classified into common equipment, uncommon equipment, unique equipment, and unused equipment. Specifically:

[0048] Commonly used equipment: Commonly used equipment refers to the refueling hydrant well equipment that is frequently used in the aircraft position. Commonly used equipment is not necessarily the only equipment.

[0049] Infrequently used equipment: Infrequently used equipment refers to a refueling hydrant well that can be used to park multiple aircraft types, but the aircraft types generally parked do not use this refueling hydrant well for refueling. It is a refueling hydrant well equipment that may be used but is generally not used frequently. The fuse valve is in a closed state for a long time and is opened when in use.

[0050] Unique equipment: Unique equipment means that there is only one refueling hydrant well in the aircraft position. As long as there is a refueling mission in the aircraft position, this equipment will be used for refueling. The unique equipment in the aircraft position must be a commonly used equipment.

[0051] Unused equipment: Unused equipment refers to refueling hydrant well equipment that is not suitable for refueling for a long time due to external factors (such as airport planning, aircraft position adjustment, change of aircraft parked at the stand, etc.), and the fuse valve is in the closed state.

[0052] S2. Collect the maintenance data of all fuel hydrants and establish a knowledge base module; the maintenance data includes the historical maintenance records of the fuel hydrants, the correspondence between the aircraft position number and the fuel hydrant number, the opening status of the fuse valve of the fuel hydrant, the use data of the fuel hydrant and / or the equipment model.

[0053] The correspondence between the aircraft stand number and the fuel hydrant number includes one-to-many and / or one-to-one; the usage data of the fuel hydrant includes usage time, number of uses, fuel hydrant status and / or fuel hydrant location; for a newly used fuel hydrant, the time of commissioning is used as the last equipment maintenance time.

[0054] The definition of completed maintenance is that the maintenance action is completed and tested, and the test results are normal. After the maintenance personnel complete the maintenance, they fill in the test time and operator, and automatically generate a unique code. The coding format is: XD-YYYY-MM-DD-NNN, where XD is a fixed format, YYYY is the year, MM is the month, DD is the day, and NNN is the sequence number of the pilot valves completed on that day. For example (XD20240819001), the first pilot valve completed on August 19, 2024.

[0055] The knowledge base module includes equipment maintenance plans and equipment repair plans. The equipment maintenance plan includes maintenance cycles, division of labor among operators, apron operation requirements, weather warnings and / or maintenance tutorials. The equipment repair plan includes repair tools, repair steps and / or post-repair inspection plans.

[0056] S3, establishing a task execution module, wherein the task execution module includes a maintenance task execution module and a repair task execution module, wherein the maintenance task execution module includes a task identification module, a task distribution module and a task execution module,

[0057] The task identification module is used to obtain corresponding equipment maintenance plans and equipment repair plans from the knowledge base module;

[0058] The task distribution module is used to distribute tasks according to the division of labor of operators in the equipment maintenance plan;

[0059] The task execution module is used to generate maintenance operation steps for the fuel hydrant according to the distributed apron operation requirements, weather warnings and / or maintenance tutorials;

[0060] The maintenance task execution module includes a maintenance information reporting module;

[0061] The maintenance information reporting module is used to complete maintenance according to the equipment maintenance plan, test the maintenance results and report the maintenance situation;

[0062] S4. Establish an information display module, which includes a maintenance knowledge display module, a repair knowledge display module and a test knowledge display module. The repair knowledge display module is used to display the equipment maintenance plan in the knowledge base module; the maintenance knowledge display module is used to display maintenance tutorials and maintenance operation steps; the test knowledge display module is used to display test tutorials and test indicators.

[0063] After receiving the operation task, the operator takes out the intact pilot valve from the spare parts warehouse, carries relevant tools, drives to the equipment location, and replaces the pilot valve of the equipment with the intact pilot valve. After returning from the completion of the operation, the disassembled equipment is centrally inspected, the aging parts are replaced, and the equipment is returned to the spare parts warehouse after passing the test, and the test time is recorded. If it cannot be repaired, it is replaced with a new equipment. When the next replacement cycle arrives, the spare parts with the earliest time are selected from the spare parts warehouse for replacement according to the repair time to ensure that the repaired equipment can be used in time.

[0064] The maintenance cycle is calculated as follows:

[0065] Obtain the maintenance records of apron equipment and the usage data of fuel hydrants, divide the equipment into equipment categories, and analyze the equipment failure cycle N corresponding to different types of fuel hydrants T (months), according to the equipment failure cycle N T and the last maintenance time before the equipment failed T j (month) obtain the cycle calculation number N;

[0066] N=N T / N j ;

[0067] The mode N of the number of period calculations N z As the fault cycle, in the fault cycle N z The equipment maintenance needs to be completed before the equipment maintenance period is T j (N z -1).

[0068] Determine the maintenance time before failure T j , maintenance time before failure T j If the maintenance time before failure is too long, the equipment will be replaced too early before failure, resulting in a waste of resources; if the maintenance time before failure is too short, it will be difficult to obtain a reasonable operation plan due to the number of operators, and thus the task cannot be completed. Therefore, it is necessary to design a maintenance time before failure algorithm to avoid wasting resources while ensuring that personnel are within a reasonable working range.

[0069] In order to ensure that each maintenance is completed before the expiration of the maintenance cycle, the delay deviation is used to adjust the maintenance cycle; the actual situation is used as the calculation basis, specifically: the number of staff n, the delay deviation δ = 0 (no delayed tasks). It is the maintenance cycle and number of staff under ideal conditions, and there is no task delay. Rz is the total number of tasks in the maintenance cycle; δ is the delay deviation in the maintenance cycle, the number of times the task is delayed. If a delay occurs, δ>0, and the total duration needs to be extended. In theory, the maintenance of equipment cannot be overdue, but due to environmental factors, the actual maintenance time is often different from the theoretical plan.

[0070] Determine the maintenance time before failure T j , the number of staff n, delay deviation δ = 0, the number of delayed tasks; when the number of staff remains unchanged and delayed tasks occur, we can get:

[0071]

[0072] Among them, R z is the total number of tasks in the maintenance cycle, T z1 is the time required to increase when the number of people remains unchanged, and δ is the delay deviation within the maintenance cycle. Therefore, the maintenance lead time within each maintenance cycle can be adjusted to ensure that each maintenance is completed before the expiration date.

[0073] If all maintenance phases are within the time limit after a maintenance is completed, calculate the minimum time limit Δδ in each cycle, set the maintenance time before failure Tj-Δδ for the next cycle, and continue to shorten the time.

[0074] After the maintenance is completed, the next maintenance time is updated according to the maintenance cycle. For newly commissioned equipment, the commissioning time of the equipment is the last maintenance time. Therefore, the calculation method of the equipment in the new stage returns to step 2 to reclassify and calculate the maintenance cycle. When it is first commissioned, Tj is 6 months.

[0075] Note: Determine the mode time of failure based on the period from good condition to failure, and then determine the failure period in units of half a year. Complete the replacement of equipment within one unit before the equipment failure period, and update the equipment maintenance time at the same time.

[0076] For example, if the unit cycle is 6 months, the mode of failure of brand A equipment is 13 months, and 13 / 6 is rounded up to 3. Therefore, the equipment needs to be replaced within the second unit cycle, that is, 2×6=12 months. Therefore, the maintenance cycle of brand A is 12 months; 6 months is a general large-scale maintenance cycle.

[0077] The maintenance cycle of guide valves of different brands is different. For example, the maintenance cycle of B guide valves is 18 months for commonly used equipment, 36 months for infrequently used equipment, 96 months for unused equipment, and 12 months for the only machine in the machine position; the maintenance cycle of C guide valves is 36 months for commonly used equipment, 60 months for infrequently used equipment, 96 months for unused equipment, and 36 months for the only machine in the machine position. The maintenance date of the equipment is dynamically updated according to the maintenance status of the equipment. The duty supervisor divides the maintenance work according to the personnel situation on that day, and each operator starts the operation. Update after the operation is completed. The equipment is summarized to form a differentiated maintenance record of the equipment. When the equipment expires, the equipment will be marked in red in the maintenance record as a reminder. The maintenance personnel will replace the equipment. After the replacement is completed, the maintenance record date will be updated, and the next expiration will be displayed in the maintenance record.

[0078] Example 2

[0079] This embodiment is described in conjunction with Example 1. This embodiment discloses a differentiated maintenance system for fuel hydrants at a civil aviation airport, including a data collection module, a risk warning module, and a task execution module;

[0080] The data acquisition module is used to obtain the use information of the refueling hydrant. The refueling information needs to be filled in by the mobile terminal, and the data acquisition module pushes the collected information to the task execution module. The refueling information includes the number of the refueling hydrant, the use time of the refueling hydrant, the refueling time and / or the refueling amount.

[0081] like Figure 3 As shown, the risk warning module is used to obtain real-time weather information through weather monitoring equipment according to the apron operation risks under different weather conditions, and push different operation risk information to the task execution module.

[0082] For the task execution module, the specific execution process is as follows:

[0083] 1. Equipment maintenance frequency tracking.

[0084] Through the data collection module, the equipment is classified by number according to the usage data of the gas hydrant, and then classified again according to the brand of the equipment used.

[0085] 2. Obtain equipment maintenance schedule.

[0086] like Figure 4 As shown in the figure, for the first use, enter the last maintenance time (the time of commissioning for new equipment that has not been maintained) and the equipment maintenance time of different frequency classifications, so as to obtain the latest maintenance schedule of the equipment. After that, the last maintenance time of the equipment is dynamically updated as the operator's information is uploaded, and the equipment maintenance schedule is updated synchronously.

[0087] 3. Determine the system roles. In the system, configure the roles of each user and configure different permissions according to the roles. The main roles are the duty supervisor and the operator. The duty supervisor has the function of formulating and issuing tasks.

[0088] 4. Set up information reminders. When the equipment has completed maintenance, the equipment will be displayed in green on the screen, yellow when it is about to be maintained, and red when it has not been maintained. It also supports saving and retrieving information based on the operator, operation time, operation content, etc.

[0089] 5. Establish a work dispatch module for the equipment maintenance system.

[0090] like Figure 5 and Figure 6 As shown, the system module can obtain the equipment maintenance schedule based on the data acquisition module. The duty captain can assign work to the operators based on the maintenance schedule in the system, the personnel situation on the day and / or the operation situation, and distribute the maintenance task details, operation risk warnings, and related information to the designated operator's mobile terminal.

[0091] 6. Task implementation.

[0092] After the relevant content is distributed, operators can obtain daily work content, carry tools, and drive to the maintenance location according to the work content.

[0093] 7. After arriving at the site, the operator obtains equipment information by scanning the code with the work mobile phone or identifying the NFC patch. After completing the relevant replacement work, fill in the electronic record and upload it.

[0094] 8. The equipment status is updated, and the next maintenance time of the equipment is automatically calculated in the background according to the equipment maintenance cycle.

[0095] 9. After the equipment is inspected and repaired, the repair time is recorded and placed in the spare parts warehouse for next use.

Claims

1. A differentiated maintenance method for fuel hydrants at civil aviation airports, characterized in that: The steps include: S1. Obtain the correspondence between the aircraft position number and the fuel hydrant number, and classify the equipment categories of the fuel hydrants according to the frequency of use of the fuel hydrants; S2. Collect the maintenance data of all fuel hydrants and establish a knowledge base module; S3, establishing a task execution module, wherein the task execution module includes a maintenance task execution module and a repair task execution module, wherein the maintenance task execution module includes a task identification module, a task distribution module and a task execution module, The task identification module is used to obtain corresponding equipment maintenance plans and equipment repair plans from the knowledge base module; The task distribution module is used to distribute tasks according to the division of labor of operators in the equipment maintenance plan; The task execution module is used to generate maintenance operation steps for the fuel hydrant according to the distributed apron operation requirements, weather warnings and / or maintenance tutorials; The maintenance task execution module includes a maintenance information reporting module; The maintenance information reporting module is used to complete maintenance according to the equipment maintenance plan, test the maintenance results and report the maintenance situation; S4. Establish an information display module, which includes a maintenance knowledge display module, a repair knowledge display module and a test knowledge display module. The repair knowledge display module is used to display the equipment maintenance plan in the knowledge base module; the maintenance knowledge display module is used to display maintenance tutorials and maintenance operation steps; the test knowledge display module is used to display test tutorials and test indicators.

2. A differentiated maintenance method for fuel hydrants at civil aviation airports according to claim 1, characterized in that: In S1, the equipment categories of the gas hydrant include common equipment, uncommon equipment, unique equipment and unused equipment.

3. The differentiated maintenance method for fuel hydrants at civil aviation airports according to claim 1 is characterized in that: In S2, the maintenance data includes historical maintenance records of the fuel hydrant, the correspondence between the aircraft position number and the fuel hydrant number, the opening status of the fuse valve of the fuel hydrant, the usage data of the fuel hydrant and / or the equipment model.

4. A differentiated maintenance method for fuel hydrants at civil aviation airports according to claim 3, characterized in that: The correspondence between the aircraft stand number and the fuel hydrant number includes one-to-many and / or one-to-one; the usage data of the fuel hydrant includes usage time, number of uses, fuel hydrant status and / or fuel hydrant location; for a newly used fuel hydrant, the time of commissioning is used as the last equipment maintenance time.

5. The differentiated maintenance method for fuel hydrants at civil aviation airports according to claim 1 is characterized in that: In S2, the knowledge base module includes equipment maintenance plans and equipment repair plans. The equipment maintenance plan includes maintenance cycles, division of labor among operators, apron operation requirements, weather warnings and / or maintenance tutorials. The equipment repair plan includes repair tools, repair steps and / or post-repair inspection plans.

6. A differentiated maintenance method for fuel hydrants at civil aviation airports according to claim 5, characterized in that: The maintenance cycle is calculated as follows: Obtain the maintenance records of apron equipment and the usage data of refueling hydrants, and analyze the equipment failure cycle N corresponding to different types of refueling hydrants T , according to the equipment failure cycle N T and the last maintenance time before the equipment failed T j Get the cycle calculation number N; N=N T / N j ; The mode N of the period calculation number N z As the fault cycle, in the fault cycle N z The equipment maintenance needs to be completed before the equipment maintenance period is T j (N z -1).

7. A differentiated maintenance method for fuel hydrants at civil aviation airports according to claim 6, characterized in that: To ensure that each maintenance is completed before the maintenance cycle expires, delay deviation is used to adjust the maintenance cycle; Determine the maintenance time before failure T j , the number of staff n, delay deviation δ = 0, the number of times the task is delayed; Among them, R z is the total number of tasks in the maintenance cycle, T z1 is the time required to increase when the number of people remains unchanged, and δ is the delay deviation within the maintenance cycle.

8. A differentiated maintenance system for fuel hydrants at civil aviation airports, characterized in that: Including data collection module, risk warning module and task execution module; The data acquisition module is used to obtain the use information of the refueling hydrant. The refueling information needs to be filled in by the mobile terminal, and the data acquisition module pushes the collected information to the task execution module. The risk warning module is used to obtain real-time weather information through weather monitoring equipment according to the apron operation risks under different weather conditions, and push different operation risk information to the task execution module.

9. A differentiated maintenance system for fuel hydrants at civil aviation airports according to claim 8, characterized in that: The refueling information includes the number of the refueling hydrant, the time the refueling hydrant is used, the refueling time and / or the refueling amount.

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