An evaluation method and system for the spatial layout of equipment based on human factors

Abstract

The present invention discloses an evaluation method and system for the spatial layout of equipment based on human factors in the field of equipment evaluation. The method includes: calculating and obtaining limb parameters according to a set height threshold to construct a human virtual model; using the human virtual model to simulate the human body posture and the process of performing actions in the equipment, collecting the external resistance, reciprocating motion duration, reciprocating motion frequency, static duration, radial rotation angle, and lateral swing angle of each part of the human body limb, and calculating and obtaining the work fatigue degree; obtaining corresponding visibility evaluation values and work accessibility evaluation values according to the visibility and accessibility of both hands of the human virtual model during work; calculating and obtaining the final human factor efficacy analysis evaluation value based on the work fatigue degree, visibility evaluation value, and work accessibility evaluation value; The present invention assists in the design and construction process of equipment, improves the design efficiency of equipment, and reduces the design cost of equipment.

Description

Technical Field

[0001] The present invention belongs to the field of equipment evaluation, and particularly relates to an evaluation method and system for the spatial layout of equipment based on human factors. Background Art

[0002] The work of the staff has changed greatly compared with the past. The workload has increased and the work content has become more complex. This urgently requires a series of reasonable methods to improve this phenomenon. When designing the production space and production process, considering the comfort of operation and removing the factor of the advanced degree of electronic equipment, the work of the staff largely depends on the degree of physical fatigue during the work process, the operability of the work space, and the visibility of the operation area. The movement intensity and reciprocating frequency of the limbs during the operation of the staff are the main causes of fatigue.

[0003] The work efficiency of the staff in the equipment space directly affects the effectiveness of the system; in order to improve the production space and production process to improve the comfort of the staff, it is more in line with the standards of industrial modernization construction. For the layout of the production space and the layout of the production process, due to the high cost of relevant equipment, every time an experiment is carried out, a new simulation space is built or designed, which consumes too much time, economy and human resources, and the efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide an evaluation method and system for the spatial layout of equipment based on human factors, which can ensure the work efficiency of the staff in the equipment space, and at the same time assist the design and construction process of the equipment, improve the design efficiency of the equipment, and reduce the design cost of the equipment.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The first aspect of the present invention provides an evaluation method for the spatial layout of equipment based on human factors, including:

[0007] Calculating and obtaining limb parameters according to a set height threshold, and constructing a human virtual model;

[0008] Using the human virtual model to simulate the human body posture and the process of performing actions in the equipment, collecting the external resistance, reciprocating movement duration, reciprocating movement frequency, static duration, radial rotation angle and lateral swing angle of each part of the human body limb, and calculating and obtaining the work fatigue degree;

[0009] Obtaining the corresponding visibility evaluation value and work accessibility evaluation value according to the visibility and accessibility of the hands of the human virtual model during the execution of work; calculating the final human factor efficacy analysis evaluation value based on the work fatigue degree, visibility evaluation value and work accessibility evaluation value.

[0010] Preferably, limb parameters are calculated based on a set height threshold, and the expression formula is:

[0011]

[0012] In the formula, L AB is the length of the human head, L CE represents the length of the human upper arm, L EG is the length of the human forearm, h is the height threshold; L DF is the length of the human chest cavity, L FM is the length of the human abdomen, L BD is the length of the human neck, L CD is the length of the human shoulder, L GJ is the length of the human hand, L PQ is the length of the human foot, L NO is the length of the human thigh, L OP is the length of the human calf.

[0013] Preferably, the method for calculating work fatigue includes:

[0014] Using a human virtual model to simulate the actions performed by a human in equipment, and calculating the fatigue of each part of the limb respectively;

[0015] Calculating work fatigue based on the fatigue and load of each part of the limb, and the expression formula is:

[0016]

[0017] In the formula, T i represents the fatigue of the i-th part of the limb; D i represents the load of the i-th part of the limb.

[0018] Preferably, the method for calculating the fatigue of each part of the limb includes:

[0019] The 0-th part of the limb is the human head and neck, and the calculation formula for the fatigue T 0 of the human head and neck is:

[0020]

[0021] The 1-st part of the limb is the upper arm, and the calculation formula for the fatigue T 1 of the upper arm is:

[0022]

[0023] The 2-nd part of the limb is the forearm, and the calculation formula for the fatigue T 2 of the forearm is:

[0024]

[0025] The third part of the limb is the wrist, and the wrist fatigue degree T 3 The calculation formula is:

[0026]

[0027] The fourth part of the limb is the waist, and the waist fatigue degree T 4 The calculation formula is:

[0028]

[0029] The fifth part of the limb is the thigh, and the thigh fatigue degree T 5 The calculation formula is:

[0030]

[0031] The sixth part of the limb is the calf, and the calf fatigue degree T 6 The calculation formula is:

[0032]

[0033] The seventh part of the limb is the ankle, and the ankle fatigue degree T 7 The calculation formula is:

[0034]

[0035] In the formula, f i is the external resistance received by the i-th part of the limb, h ki is the reciprocating movement duration of the i-th part of the limb, R i is the reciprocating movement frequency of the i-th part of the limb, h si is the static duration of the i-th part of the limb, p i is the radial rotation factor of the i-th part of the limb, q i is the lateral swing factor of the i-th part of the limb, a i is the radial rotation angle of the i-th part of the limb, b i is the lateral swing angle of the i-th part of the limb.

[0036] Preferably, according to the visibility of the virtual human model's hands during work, the corresponding visibility evaluation value is obtained. The method includes:

[0037] Use the open-source engine UE4 to build a virtual reality human-computer interaction simulation scenario. Calculate the horizontal offset angle of the human eye and the device axis distance angle of the equipment through the angle algorithm of the spatial rectangular coordinate. Calculate the visibility evaluation value according to the horizontal offset angle and the device axis distance angle. The expression formula is:

[0038] k 1 =-0.14α + 10.0

[0039] k 2 = -0.25β + 9.0

[0040] k = 0.65k 1 + 0.5k 2

[0041] Wherein, α is the horizontal offset angle; β is the device axis distance angle; k 1 is the horizontal offset angle score value; k 2 is the device axis distance angle score value; k is the visibility analysis evaluation value.

[0042] Preferably, a corresponding work reachability evaluation value is obtained according to the reachability of both hands of the human virtual model during work. The method includes:

[0043] Based on the human - machine interaction simulation scenario, spatial parameters of the equipment location are obtained, and the operation reachability evaluation value is calculated. The formula is as follows:

[0044] k b1 = -22g / h 空 + 28

[0045] k b2 = -20n / l 空 + 28

[0046] k b3 = -20c / w 空 + 30

[0047] k b = 0.24 + 0.32k b2 + 0.39k b3

[0048] Wherein, g is the distance from the human head to the chest; h 空 is the spatial height of the equipment location; n is the width of the human shoulder; l 空 is the spatial width of the equipment location; c is the human arm length; w 空 is the spatial depth of the equipment location; k b1 is the height part score value; k b2 is the width part evaluation value; k b3 is the depth part evaluation value; k b is the operation reachability evaluation value.

[0049] Preferably, the expression formula for calculating the final human - factor efficiency analysis evaluation value based on work fatigue, visibility evaluation value, and work reachability evaluation value is:

[0050]

[0051] Wherein, C is the human - factor efficiency analysis evaluation value.

[0052] The second aspect of the present invention provides an evaluation system for the equipment space layout based on human factors, including:

[0053] A model construction module, configured to calculate and obtain limb parameters according to a set height threshold, and construct a human virtual model;

[0054] A working fatigue degree calculation module, configured to simulate the human body posture and the execution action process in the equipment by using the human virtual model, collect the external resistance, reciprocating movement duration, reciprocating movement frequency, static duration, radial rotation angle and lateral swing angle of each part of the human body, and calculate and obtain the working fatigue degree;

[0055] An evaluation module, configured to obtain corresponding visibility evaluation values and working accessibility evaluation values according to the visibility and accessibility of both hands of the human virtual model during the execution of work; calculate and obtain the final human factor efficacy analysis evaluation value based on the working fatigue degree, visibility evaluation value, and working accessibility evaluation value.

[0056] The third aspect of the present invention provides a computer-readable storage medium, characterized in that a computer program is stored thereon, and when the program is executed by a processor, the steps of the evaluation method are implemented.

[0057] Compared with the prior art, the beneficial effects of the present invention are:

[0058] The present invention calculates the final human factor efficacy analysis evaluation value based on the working fatigue degree, visibility evaluation value, and working accessibility evaluation value; considers the influence of human body posture fatigue, assembly visual factors, and operation space size in the assembly space, so it can comprehensively evaluate the human factor efficacy in the system assembly process, thereby analyzing the system assembly space and assembly process for the assembly process of high-density electronic equipment at the early stage of design, discovering unreasonable points therein, and realizing the optimization of the assembly space through adjustment and improvement; assisting the design and construction process of the equipment, improving the design efficiency of the equipment, and reducing the design cost of the equipment. Description of the Drawings

[0059] Figure 1 is a flowchart of an evaluation method for the equipment space layout based on human factors provided by an embodiment of the present invention;

[0060] Figure 2 is a flowchart of the visibility evaluation value provided by an embodiment of the present invention;

[0061] Figure 3 is a flowchart of the working accessibility evaluation provided by an embodiment of the present invention. Detailed Embodiments

[0062] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0063] Embodiment 1

[0064] As Figures 1 to 3 shown, an evaluation method for the spatial layout of equipment based on human factors includes:

[0065] Calculating and obtaining limb parameters according to a set height threshold, and constructing a virtual human model;

[0066] Calculating and obtaining limb parameters according to a set height threshold, and the expression formula is:

[0067]

[0068] In the formula, L AB is the length of the human head, L CE represents the length of the human upper arm, L EG is the length of the human forearm, h is the height threshold; L DF is the length of the human chest cavity, L FM is the length of the human abdomen, L BD is the length of the human neck, L CD is the length of the human shoulder, L GJ is the length of the human hand, L PQ is the length of the human foot, L NO is the length of the human thigh, L OP is the length of the human calf.

[0069] Using the virtual human model to simulate the human posture and the process of performing actions in the equipment, and collecting the external resistance, reciprocating movement duration, reciprocating movement frequency, static duration, radial rotation angle and lateral swing angle of each part of the human body limb;

[0070] The method for calculating the fatigue degree of each part of the limb includes:

[0071] The 0th part of the limb is the human head and neck, and the fatigue degree T 0 of the human head and neck is calculated by the formula:

[0072]

[0073] The 1st part of the limb is the upper arm, and the fatigue degree T 1 of the upper arm is calculated by the formula:

[0074]

[0075] The 2nd part of the limb is the forearm, and the fatigue degree T 2 of the forearm is calculated by the formula:

[0076]

[0077] The 3rd part of the limb is the wrist, and the wrist fatigue degree T 3 is calculated by the formula:

[0078]

[0079] The 4th part of the limb is the waist, and the waist fatigue degree T 4 is calculated by the formula:

[0080]

[0081] The 5th part of the limb is the thigh, and the thigh fatigue degree T 5 is calculated by the formula:

[0082]

[0083] The 6th part of the limb is the calf, and the calf fatigue degree T 6 The calculation formula is:

[0084]

[0085] The 7th part of the limb is the ankle, and the ankle fatigue degree T 7 is calculated by the formula:

[0086]

[0087] In the formula, f i is the external resistance received by the i-th part of the limb, h ki is the reciprocating motion duration of the i-th part of the limb, R i is the reciprocating motion frequency of the i-th part of the limb, h si is the static duration of the i-th part of the limb, p i is the radial rotation factor of the i-th part of the limb, q i is the lateral swing factor of the i-th part of the limb, a i is the radial rotation angle of the i-th part of the limb, b i is the lateral swing angle of the i-th part of the limb.

[0088] The limb part activity factors in this embodiment are shown in Table 1:

[0089] Table 1 Limb part activity factors

[0090]

[0091] The movement parameter table of each part of the human body in this embodiment is shown in Table 2:

[0092] Table 2 Movement parameters of each part of the human body

[0093]

[0094] Calculate the working fatigue degree according to the fatigue degree and load of each part of the limb, and the expression formula is:

[0095]

[0096] In the formula, T i represents the fatigue degree of the i-th part of the limb; D i represents the load of the i-th part of the limb.

[0097] Obtain the corresponding visibility evaluation value according to the visibility of the hands of the human virtual model during the execution of the work. The methods include:

[0098] As Figure 2 shown, the best visual field area of the visual cone is a spatial cone with the normal line of sight as the center line and a straight line intersecting the center line at an angle of 15 degrees as the generatrix. This area is the best visual field area. When the object is within the best visual field area, the human eye can clearly and comfortably observe the object, and it is not easy to produce fatigue, and the visibility is good; when the object is within the best visual field, the human eye is not easy to produce fatigue when observing the object, and the visibility is better. The best visual field area can be called the best visual field visual cone.

[0099] Build the assembly environment and assembly personnel in real life in the UE4 virtual scene in the same proportion. Establish a spatial rectangular coordinate system with the midpoint of the two eyes of the person as the origin, and the coordinates of the midpoint of the two eyes are o(0, 0, 0). Take the geometric center point coordinates p(x 1 , y 1 , z 1 ) of the assembly device, and the coordinates q(x 2 , y 2 , z 2 ) of the point farthest from the geometric center point in the device on the y-z plane of the coordinate system. First, we calculate the distance d from point o to point p, and then calculate the horizontal offset angle α between the horizontal line of sight of the human eye and the line of sight looking at point p. Then, with p as the center, the distance between p and q as the radius, and o as the cone vertex, construct a cone, and use the angle algorithm of the spatial rectangular coordinate to calculate the device axis angle β of this cone.

[0100] When looking at an object with a horizontal line of sight, the best observation effect can be obtained. Therefore, when α is 0, the observation effect is the best.

[0101] Obtain the visibility evaluation value according to the horizontal offset angle and the device axis angle. The expression formula is:

[0102] k 1 =-0.14α + 10.0

[0103] k 2= -0.25β + 9.0

[0104] k = 0.65k 1 + 0.5k 2

[0105] Wherein, α is the horizontal offset angle; β is the device axis distance angle; k 1 is the horizontal offset angle score value; k 2 is the device axis distance angle score value; k is the visibility analysis evaluation value.

[0106] As Figure 3 shown, according to the reachability of the hands of the human virtual model during the execution of work, the corresponding work reachability evaluation value is obtained. The method includes:

[0107] Based on the human-machine interaction simulation scenario, the spatial parameters of the location where the equipment is located are obtained, and the operation reachability evaluation value is calculated. The formula is as follows:

[0108] k b1 = -22g / h 空 + 28

[0109] k b2 = -20n / l 空 + 28

[0110] k b3 = -20c / w 空 + 30

[0111] k b = 0.24 + 0.32k b2 + 0.39k b3

[0112] Wherein, g is the distance from the human head to the chest; h 空 is the spatial height of the location where the equipment is located; n is the width of the human shoulder; l 空 is the spatial width of the location where the equipment is located; c is the human arm length; w 空 is the spatial depth of the location where the equipment is located; k b1 is the height part score value; k b2 is the width part evaluation value; k b3 is the depth part evaluation value; k b is the operation reachability evaluation value.

[0113] The expression formula for calculating the final human factor efficacy analysis evaluation value based on the work fatigue degree, visibility evaluation value, and work reachability evaluation value is:

[0114]

[0115] Wherein, C is the human factor efficacy analysis evaluation value.

[0116] The present invention conducts a human factors and ergonomics assessment of the assembly process in the working scenario from the perspectives of human body postures, human activities, visual accessibility, and operability, assisting in the design and construction process of the equipment, improving the design efficiency of the equipment, and reducing the design cost of the equipment.

[0117] Embodiment 2

[0118] An evaluation system for the spatial layout of equipment based on human factors. The evaluation system provided in this embodiment can be applied to the evaluation method described in Embodiment 1, and the evaluation system includes:

[0119] A model construction module, configured to calculate and obtain limb parameters according to a set height threshold, and construct a human virtual model;

[0120] A working fatigue calculation module, configured to simulate the human body postures and the process of performing actions in the equipment by using the human virtual model, collect the external resistance, reciprocating motion duration, reciprocating motion frequency, static duration, radial rotation angle, and lateral swing angle of each part of the human body limb, and calculate and obtain the working fatigue;

[0121] An evaluation module, which obtains corresponding visibility evaluation values and working accessibility evaluation values according to the visibility and accessibility of the hands of the human virtual model when performing work; calculates and obtains the final human factors and ergonomics analysis evaluation value based on the working fatigue, visibility evaluation value, and working accessibility evaluation value.

[0122] Embodiment 3

[0123] A computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, it implements the steps of the evaluation method described in Embodiment 1.

[0124] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0125] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing device produce means for implementing the functions specified in one or more of the flows Figure 1 one or more of the flows Figure 1 or one or more of the blocks

[0126] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the computer-readable memory produce a manufacture including instruction means for implementing the functions specified in one or more of the flows Figure 1 one or more of the flows Figure 1 or one or more of the blocks

[0127] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operational steps are performed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more of the flows Figure 1 one or more of the flows Figure 1 or one or more of the blocks

[0128] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An evaluation method for the spatial layout of equipment based on human factors, characterized in that, it includes: Calculating and obtaining limb parameters according to a set height threshold to construct a human virtual model; the expression formula is: In the formula, L AB is the length of the human head, L CE represents the length of the upper arm of the human body, L EG is the length of the forearm of the human body, h is the height threshold; L DF is the length of the chest of the human body, L FM is the length of the abdomen of the human body, L BD is the length of the neck of the human body, L CD is the length of the shoulder of the human body, L GJ is the length of the hand of the human body, L PQ is the length of the foot of the human body, L NO is the length of the thigh of the human body, L OP is the length of the calf of the human body; Using the human virtual model to simulate the human body posture and the process of performing actions when working in the equipment, collecting the external resistance, reciprocating movement duration, reciprocating movement frequency, static duration, radial rotation angle and lateral swing angle of each part of the human body limb, and calculating and obtaining the work fatigue degree; Specifically including: Using the human virtual model to simulate the actions performed by the human body in the equipment, and calculating the fatigue degree of each part of the limb respectively, specifically including: The 0th part of the limb is the human head and neck, and the fatigue degree T of the human head and neck 0 The calculation formula is as follows: The first part of the limb is the upper arm, and the upper arm fatigue degree T 1 The calculation formula is as follows: The second part of the limb is the forearm, and the forearm fatigue degree T 2 The calculation formula is as follows: The third part of the limb is the wrist, and the wrist fatigue degree T 3 The calculation formula is as follows: The fourth part of the limb is the waist, and the waist fatigue degree T 4 The calculation formula is as follows: The fifth part of the limb is the thigh, and the thigh fatigue degree T 5 The calculation formula is as follows: The 6th part of the limb is the calf, and the calf fatigue degree is T 6 The calculation formula is: The 7th part of the limb is the ankle, and the ankle fatigue degree T 7 The calculation formula is as follows: In the formula, f i is the external resistance received by the i-th part of the limb, h ki is the duration of reciprocating motion of the i-th part of the limb, R i is the reciprocating motion frequency of the i-th part of the limb, h si is the stationary duration of the i-th part of the limb, p i is the radial rotation factor of the i-th part of the limb, q i is the lateral swing factor of the i-th part of the limb, a i is the radial rotation angle of the i-th part of the limb, b i is the lateral swing angle of the i-th part of the limb; Calculating the work fatigue degree according to the fatigue degree and load of each part of the limb, and the expression formula is: In the formula, T i represents the fatigue degree of the i-th part of the limb; D i represents the load on the i-th part of the limb; Obtaining the corresponding visibility evaluation value and work accessibility evaluation value according to the visibility and accessibility of both hands of the human virtual model when performing work; Calculating the final human factor efficacy analysis evaluation value based on the work fatigue degree, visibility evaluation value and work accessibility evaluation value.

2. The evaluation method for the spatial layout of equipment based on human factors according to claim 1, characterized in that, Obtaining the corresponding visibility evaluation value according to the visibility of both hands of the human virtual model when performing work, and the method includes: Using the open-source engine UE4 to construct a virtual reality human-computer interaction simulation scenario, calculating the horizontal offset angle of the human eye and the device axis distance angle of the equipment through the angle algorithm of the spatial rectangular coordinate, and calculating the visibility evaluation value according to the horizontal offset angle and the device axis distance angle, and the expression formula is: k 1 ＝-0.14α+10.0 k 2 ＝-0.25β+9.0 k = 0.65k 1 + 0.5k 2 where α is the horizontal offset angle; β is the device axis pitch angle; k 1 is the horizontal offset angle score value; k 2 is the device axis pitch angle score value; k is the visibility analysis evaluation value.

3. The evaluation method for the spatial layout of equipment based on human factors according to claim 2, characterized in that, Obtaining the corresponding work accessibility evaluation value according to the accessibility of both hands of the human virtual model when performing work, and the method includes: Obtaining the spatial parameters of the location where the equipment is located based on the human-computer interaction simulation scenario, and calculating the work accessibility evaluation value, and the formula is as follows: k b1 = -22 g / h 空 + 28 k b2 = -20n / l 空 + 28 k b3 = -20 c / w 空 + 30 k b = 0.24 + 0.32k b2 + 0.39k b3 where g is the distance from the human head to the chest; h 空 is the spatial height of the position where the equipment is located; n is the width of the human shoulder; l 空 is the spatial width of the position where the equipment is located; c is the arm length of the human body; w 空 is the spatial depth of the position where the equipment is located; k b1 is the height part score value; k b2 is the width part evaluation value; k b3 is the depth part evaluation value; k b is the work accessibility evaluation value.

4. The evaluation method for the spatial layout of equipment based on human factors according to claim 3, characterized in that, The expression formula for calculating the final human factor efficacy analysis evaluation value based on the work fatigue degree, visibility evaluation value and work accessibility evaluation value is: In the formula, C is the human factor efficacy analysis evaluation value.

5. An evaluation system for the spatial layout of equipment based on human factors, characterized in that, it includes: A model construction module for calculating and obtaining limb parameters according to a set height threshold to construct a human virtual model; A work fatigue degree calculation module for using the human virtual model to simulate the human body posture and the process of performing actions in the equipment, collecting the external resistance, reciprocating movement duration, reciprocating movement frequency, static duration, radial rotation angle and lateral swing angle of each part of the human body limb, and calculating and obtaining the work fatigue degree; An evaluation module for obtaining the corresponding visibility evaluation value and work accessibility evaluation value according to the visibility and accessibility of both hands of the human virtual model when performing work; Calculating the final human factor efficacy analysis evaluation value based on the work fatigue degree, visibility evaluation value and work accessibility evaluation value; The model construction module calculates and obtains limb parameters according to a set height threshold, and the expression formula is: In the formula, L AB is the length of the human head, L CE represents the length of the upper arm of the human body, L EG is the length of the forearm of the human body, h is the height threshold; L DF is the length of the chest cavity of the human body, L FM is the length of the abdomen of the human body, L BD is the length of the neck of the human body, L CD is the length of the shoulder of the human body, L GJ is the length of the hand of the human body, L PQ is the length of the foot of the human body, L NO is the length of the thigh of the human body, L OP is the length of the calf of the human body; The working fatigue degree calculation module calculates and obtains the working fatigue degree, specifically including: Using a human body virtual model to simulate the actions performed by the human body in the equipment, and calculating the fatigue degree of each part of the limb respectively, specifically including: The 0th part of the limb is the human head and neck, and the fatigue degree T of the human head and neck 0 The calculation formula is: The first part of the limb is the upper arm, and the upper arm fatigue degree T 1 The calculation formula is as follows: The second part of the limb is the forearm, and the forearm fatigue degree T 2 is calculated by the formula: The third part of the limb is the wrist, and the wrist fatigue degree T 3 is calculated by the formula: The fourth part of the limb is the waist, and the waist fatigue degree T 4 The calculation formula is as follows: The fifth part of the limb is the thigh, and the thigh fatigue degree T 5 is calculated by the formula: The 6th part of the limb is the lower leg, and the fatigue degree T of the lower leg 6 The calculation formula is: The 7th part of the limb is the ankle, and the ankle fatigue degree T 7 The calculation formula is as follows: In the formula, f i is the external resistance received by the i-th part of the limb, h ki is the duration of reciprocating motion of the i-th part of the limb, R i is the reciprocating motion frequency of the i-th part of the limb, h si is the stationary duration of the i-th part of the limb, p i is the radial rotation factor of the i-th part of the limb, q i is the lateral swing factor of the i-th part of the limb, a i is the radial rotation angle of the i-th part of the limb, b i is the lateral swing angle of the i-th part of the limb; Calculating the working fatigue degree according to the fatigue degree and load of each part of the limb, and the expression formula is: In the formula, T i represents the fatigue degree of the i-th part of the limb; D i represents the load on the i-th part of the limb.

6. A computer-readable storage medium, characterized in that, a computer program is stored thereon, and when the program is executed by a processor, the steps of the evaluation method described in any one of claims 1 to 4 are implemented.

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