Maintenance support personnel operation load evaluation method

Abstract

The invention belongs to the technical field of aircraft support, and particularly relates to a maintenance support personnel operation load evaluation method, which comprises the steps of grading an operation environment, decomposing action elements of a support operation process, capturing the actions of maintenance support personnel according to the action elements under the grading of the operation environment, and simulating the support operation process. According to the method, the operation load value is obtained by counting the guarantee operation process and the action behaviors and duration of the maintenance guarantee personnel, calculating the labor intensity of the maintenance guarantee personnel, and the operation load of the maintenance guarantee personnel is quantified, so that the operation load level can be accurately reflected, and the problem of interference on normal operation of the maintenance guarantee personnel is not involved; and the one-sidedness of a single detection method can be avoided, the operability is high, the invasiveness is small, and the evaluation is more accurate and credible.

Description

Technical Field

[0001] The present application belongs to the field of aircraft support technology, and specifically relates to a method for evaluating the workload of maintenance support personnel. Background Art

[0002] Aircraft have to go through a series of support operations during the aircraft dispatch process. Carrying out an assessment of the workload of maintenance support personnel is of great significance for the design and optimization of the support operation process during the aircraft dispatch process.

[0003] Currently, the following methods are mainly used to evaluate the workload of maintenance personnel: Subjective evaluation method: The workload of maintenance personnel is divided into six dimensions: mental workload, physical workload, operational performance, sense of time urgency, effort and frustration. The relative importance of each dimension is evaluated by pairwise comparison, and the weight of each dimension is determined and scored. The workload is calculated according to the weight of each dimension to determine the subjective workload value of maintenance personnel. When using the subjective evaluation method, due to the large individual differences, the maintenance personnel's subjective evaluation of their workload is closely related to their own physical and mental state at the time. When the same maintenance personnel completes the same task under different conditions, their subjective evaluation results may vary greatly. Therefore, the division of workload lacks a reliable basis, and usually only an overall evaluation of the load level after the operation can be made, and the scale cannot be completed during the execution of the operation.

[0004] Task performance measurement method: The task performance of maintenance personnel is used as the evaluation standard for workload. By adding additional tasks of different difficulty levels during the execution of the operation, the behavioral indicator-related data for measuring workload is recorded, and the workload is judged based on the behavioral indicator-related data. When using the task performance measurement method, the performance evaluation indicators lack a reliable basis, and using the performance of some tasks as evaluation indicators is relatively one-sided. In addition, the acquisition and recording of performance evaluation indicators will interfere with the normal operations of maintenance personnel.

[0005] Physiological data detection method: Use various sensors and technologies to monitor the physiological parameters of maintenance personnel during operation, including EEG, eye movement, heart rate, etc., to evaluate the workload of maintenance personnel. Using the physiological data detection method, maintenance personnel have various operating postures, and most physiological data collection devices are poorly wearable, which will have a strong interference with the normal operation process of maintenance personnel.

[0006] This application is proposed in view of the above-mentioned technical defects. Summary of the invention

[0007] The purpose of this application is to provide a method for evaluating the workload of maintenance personnel to overcome or alleviate at least one of the known technical deficiencies.

[0008] The technical solution of this application is: A method for evaluating the workload of maintenance personnel, comprising: Step 1: Classify the working environment; Step 2: Decompose the action elements of the support operation process, including: The action elements of the power-on operation process are decomposed into squatting, lifting the harness with both hands, walking, operating with both hands, and standing; The refueling operation process is decomposed into the action elements of one-hand operation, walking, two-hand operation, operating the hose, squatting, and standing; Step 3: Under the classification of the working environment, capture the actions of the maintenance personnel according to the action elements and simulate the maintenance operation process; Step 4: Count the maintenance operation process, the actions and duration of the maintenance personnel, calculate the labor intensity of the maintenance personnel, and obtain the operation load value.

[0009] Optionally, in the above-mentioned method for assessing the workload of maintenance personnel, step 1 is specifically as follows: The working environment is divided into three levels according to the temperature, humidity, wind speed and thermal insulation value of work clothes: comfort, compensation and tolerance.

[0010] Optionally, in the above-mentioned method for assessing the workload of maintenance support personnel, in step three, Unity 3D software is used to simulate the support operation process.

[0011] Optionally, in the above-mentioned method for evaluating the workload of maintenance personnel, in step 4, the labor intensity of maintenance personnel is calculated as the sum of the product of the average metabolic heat production rate of each action and the time; Average metabolic heat production rate of action behavior ,in, The average metabolic heat production rate of basic movements is taken as the average metabolic heat production rate of lying still; is the average metabolic heat production rate of action postures, including sitting, running, squatting, standing, bending, and walking; is the average metabolic heat production rate of the movement type. The movement types include manual, single-arm, double-arm, and whole-body. The average metabolic heat production rate of each movement type is divided into light, medium, heavy, and very heavy levels. It indicates the classification of working environment into comfortable, compensatory and tolerable levels, and the corresponding average metabolic heat production rate increases step by step.

[0012] This application has at least the following beneficial technical effects: A method for evaluating the workload of maintenance personnel is provided. The method is designed to classify the operating environment and decompose the action elements of the maintenance operation process. Then, under the classification of the operating environment, the actions of the maintenance personnel are captured according to the action elements, and the maintenance operation process is simulated. By statistically analyzing the maintenance operation process, the action behaviors of the maintenance personnel and their duration, and calculating the labor intensity of the maintenance personnel, the workload value is obtained, and the workload of the maintenance personnel is quantified. The method can accurately reflect the workload level, does not involve the problem of interfering with the normal operation of the maintenance personnel, and can avoid the one-sidedness of a single detection method. The method has strong operability, low invasiveness, and more accurate and reliable evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a method for evaluating workload of maintenance support personnel provided in an embodiment of the present application.

[0014] In order to better illustrate the present embodiment, some contents of the drawings may be omitted, which is only used for illustrative purposes and should not be construed as limiting the present application. DETAILED DESCRIPTION

[0015] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be described in further detail in detail and in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design.

[0016] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall have the usual meanings understood by those of ordinary skill in the art to which this application belongs. The words used in the description of this application to indicate orientation are only used to indicate relative directions or positional relationships. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. The word "include" used in the description of this application indicates that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects.

[0017] A method for evaluating the workload of maintenance personnel, such as Figure 1 shown.

[0018] Step 1: Classify the working environment.

[0019] The working environment can be divided into three levels according to the temperature, humidity, wind speed and thermal insulation value of work clothes: comfort, compensation and tolerance.

[0020] When the working environment is classified as compensation, the limits of air temperature, humidity, wind speed and thermal insulation value of work clothes are shown in Table 1: Table 1

[0021] When the working environment is classified as tolerance, the limits of temperature, humidity, wind speed and thermal insulation value of work clothes are as shown in Table 2: Table 2

[0022] The working environments for other combinations of temperature, humidity, wind speed and thermal insulation value of work clothes are classified as comfortable.

[0023] Step 2: Decompose the action elements of the support operation process.

[0024] The support operations specifically include power-on operations, refueling operations, etc.

[0025] The action elements of the power-on operation process are decomposed into squatting, lifting the wire harness with both hands, walking, operating with both hands, and standing.

[0026] The action elements of the refueling operation process are decomposed into one-hand operation, walking, two-hand operation, hose operation, squatting, and standing action elements.

[0027] Step 3: Under the grading of the operating environment, capture the actions of the maintenance personnel according to the action elements and simulate the maintenance operation process.

[0028] Unity 3D software can be used to simulate the security operation process.

[0029] Step 4: Count the maintenance operation process, the actions and duration of the maintenance personnel, calculate the labor intensity of the maintenance personnel, and obtain the operation load value.

[0030] The labor intensity of maintenance personnel is the sum of the average metabolic heat production rate of each action and the product of time.

[0031] Average metabolic heat production rate of action behavior ,in, The average metabolic heat production rate of basic movements is taken as the average metabolic heat production rate of lying still; is the average metabolic heat production rate of action postures, including sitting, running, squatting, standing, bending, and walking; is the average metabolic heat production rate of the movement type. The movement types include manual, single-arm, double-arm, and whole-body. The average metabolic heat production rate of each movement type is divided into light, medium, heavy, and very heavy levels. It indicates the classification of working environment into comfortable, compensatory and tolerable levels, and the corresponding average metabolic heat production rate increases step by step.

[0032] The specific values ​​of the average metabolic heat production rate of action behavior are shown in Table 3: Table 3

[0033] The above-mentioned embodiment discloses a method for evaluating the workload of maintenance support personnel, which is designed to classify the working environment and decompose the action elements of the maintenance work process. Then, under the grading of the working environment, the actions of the maintenance support personnel are captured according to the action elements, and the maintenance work process is simulated. By statistically analyzing the maintenance work process, the action behaviors of the maintenance support personnel and their duration, and calculating the labor intensity of the maintenance support personnel, the workload value is obtained, and the workload of the maintenance support personnel is quantified. This method can accurately reflect the workload level without involving interference with the normal work of the maintenance support personnel, and can avoid the one-sidedness of a single detection method. It has strong operability, low invasiveness, and more accurate and reliable evaluation.

[0034] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.

Claims

1. A method for evaluating the workload of maintenance personnel, characterized in that: include: Step 1: Classify the working environment; Step 2: Decompose the action elements of the support operation process, including: The action elements of the power-on operation process are decomposed into squatting, lifting the harness with both hands, walking, operating with both hands, and standing; The refueling operation process is decomposed into the action elements of one-hand operation, walking, two-hand operation, operating the hose, squatting, and standing; Step 3: Under the classification of the working environment, capture the actions of the maintenance personnel according to the action elements and simulate the maintenance operation process; Step 4: Count the maintenance operation process, the actions and duration of the maintenance personnel, calculate the labor intensity of the maintenance personnel, and obtain the operation load value.

2. The method for evaluating the workload of maintenance personnel according to claim 1, characterized in that: Step 1 is as follows: The working environment is divided into three levels according to the temperature, humidity, wind speed and thermal insulation value of work clothes: comfort, compensation and tolerance.

3. The method for evaluating the workload of maintenance personnel according to claim 1, characterized in that: In step three, Unity 3D software is used to simulate the support operation process.

4. The method for evaluating workload of maintenance personnel according to claim 1, characterized in that: In step 4, the labor intensity of the maintenance personnel is calculated as the sum of the average metabolic heat production rate of each action and the product of time; Average metabolic heat production rate of action behavior ,in, The average metabolic heat production rate of basic movements is taken as the average metabolic heat production rate of lying still; is the average metabolic heat production rate of action postures, including sitting, running, squatting, standing, bending, and walking; is the average metabolic heat production rate of the movement type. The movement types include manual, single-arm, double-arm, and whole-body. The average metabolic heat production rate of each movement type is divided into light, medium, heavy, and very heavy levels. It indicates the classification of working environment into comfortable, compensatory and tolerable levels, and the corresponding average metabolic heat production rate increases step by step.

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