Sketchup-based substation equipment installation detail scene skill assessment method and system

Abstract

The invention discloses a skill assessment method and system for a substation equipment installation detail scene based on sketchup, and relates to the technical field of substation equipment installation. Comprising the following steps: S1, constructing a scene: constructing a three-dimensional model by utilizing sketchup, and obtaining assessment local scenes in different time periods based on the constructed three-dimensional model; s2, operation interaction: carrying out interactive assessment on the participants to obtain final scores of the participants; and S3, result evaluation: distinguishing the technical levels of the participants through the final scores, and reflecting the skill levels of the participants according to different score segments. According to the method, a skill assessment scene is constructed by utilizing three-dimensional modeling based on sketchup software, and the skill level of the installation personnel is deeply assessed through an interactive prompt method and the like, so that the skill level of the installation personnel is distinguished, and the method is of great significance to skill training and identification in the field of substation equipment installation.

Description

Technical Field

[0001] The present invention relates to the technical field of substation equipment installation, and in particular to a method and system for assessing substation equipment installation detail scenario skills based on Sketchup. Background Art

[0002] Substation equipment has a complex structure and high installation process requirements. When assessing the skills of complex equipment installers, they are often unable to perform actual operations, but instead use various simulation systems to assess the skill level of installers. The current skill assessment simulation software has a single device model and does not adequately reflect the details of the installation process, so it is impossible to objectively distinguish the skill levels of installers.

[0003] Therefore, it is an urgent problem for technical personnel in this field to propose a skill assessment method and system for substation equipment installation detail scenarios based on Sketchup to solve the difficulties existing in the prior art. Summary of the invention

[0004] In view of this, the present invention provides a skill assessment method and system for substation equipment installation detail scenarios based on Sketchup, which solves the problem that the current skill assessment simulation software has a single equipment model, does not reflect the details of the installation process, and cannot objectively distinguish the skill levels of the installers.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A method for assessing substation equipment installation detail scenario skills based on Sketchup, comprising the following steps:

[0007] S1. Build the scene: Use Sketchup to build a 3D model, and obtain the local scenes of the assessment in different time periods based on the built 3D model;

[0008] S2. Operational interaction: Conduct interactive assessment on the participants and obtain their final scores;

[0009] S3. Evaluation results: The final scores are used to distinguish the technical levels of the participants, and the skill levels of the participants are reflected according to different score segments.

[0010] In the above method, optionally, in S1, a three-dimensional model is constructed using Sketchup, and the specific contents of the assessment local scenes in different time periods are obtained based on the constructed three-dimensional model:

[0011] Select the corresponding model from the Sketchup material library;

[0012] The model is split according to the construction process and components, and the internal structure of the model is refined to obtain a refined model that can truly simulate the construction process;

[0013] By reassembling and controlling the component models, different local assessment scenes are constructed at different time periods of the construction process.

[0014] The above method can optionally assess local scenarios including bushing installation scenario, main transformer sealing test scenario, and transformer oil filtering scenario.

[0015] In the above method, optionally, S2 performs interactive assessment on the participants, and obtains the final scores of the participants as follows:

[0016] The assessees carry out the assessment in sequence, and various interactive methods are set up, such as voice prompts, detail magnification, and question assessment. The assessees choose a local scene for the assessment, and are interactively assessed through multiple-choice questions. The final scores of the assessees are determined based on the assessment results.

[0017] The above method is optional, and the participants shall carry out the assessment in the following order: construction preparation, tool selection, safety tool selection, safety fence setting, personnel briefing, main construction process, and finishing of work.

[0018] The above method is optional. All assessment questions are divided into three dimensions: safety, quality, and technology. Questions in each dimension are scored according to their difficulty. The full score for the assessment is 100 points. The score obtained after deducting all deductions is the final score of the participant.

[0019] The above method is optional. In S3, the technical level of the participants is distinguished by the final score. The specific content of reflecting the skill level of the participants according to different score segments is as follows:

[0020] Automatically record the selected answers and scores of the participants in different assessment dimensions according to the operation process of the participants, calculate the assessment scores comprehensively, and obtain the final scores of the participants;

[0021] The participants will be evaluated as junior workers, intermediate workers, senior workers, technicians and senior technicians according to different performance categories.

[0022] According to the above method, 50-60 points are selected as junior workers, 60-70 points are selected as intermediate workers, 70-80 points are selected as senior workers, 80-90 points are selected as technicians, and 90-100 points are selected as senior technicians.

[0023] A substation equipment installation detail scenario skill assessment system based on Sketchup, applying any of the above-mentioned substation equipment installation detail scenario skill assessment methods based on Sketchup, comprising: building a scenario module, an operation interaction module and an evaluation result module;

[0024] The scene building module is connected to the input end of the operation interaction module and is used to build a three-dimensional model using Sketchup, and obtain the assessment local scenes of different time periods based on the built three-dimensional model;

[0025] The operation interaction module is connected to the input end of the evaluation result module and is used to interactively evaluate the participants and obtain the final scores of the participants;

[0026] The evaluation result module is used to distinguish the technical levels of the participants through the final scores, and reflect the skill levels of the participants according to different score segments.

[0027] It can be seen from the above technical solutions that, compared with the prior art, the present invention provides a skill assessment method and system for substation equipment installation detail scenarios based on Sketchup, which has the following beneficial effects:

[0028] (1) The present invention uses 3D modeling based on Sketchup software to construct a skill assessment scenario, and conducts an in-depth assessment of the skill level of the installer through interactive prompts and other methods, thereby distinguishing the skill level of the installer, which is of great significance to the skill training and identification in the field of substation equipment installation;

[0029] (2) It solves the problem that the current skill assessment simulation software has a single equipment model, does not adequately reflect the details of the installation process, and cannot objectively distinguish the skill levels of the installers. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0031] Figure 1 A flowchart of a skill assessment method for substation equipment installation detail scenarios based on Sketchup provided by the present invention;

[0032] Figure 2 A structural block diagram of a skill assessment system for substation equipment installation details scenarios based on Sketchup provided by the present invention;

[0033] Figure 3 A corresponding or similar model schematic diagram is selected from the Sketchup material library provided by the present invention;

[0034] Figure 4 A schematic diagram of an assessment participant provided by the present invention entering the assessment system from a first-person perspective;

[0035] Figure 5 A schematic diagram of construction preparation provided by the present invention;

[0036] Figure 6 A schematic diagram of tool selection provided by the present invention;

[0037] Figure 7 A schematic diagram of the adjustment of the inclination of the single-point lifting casing by the examiners provided in the present invention;

[0038] Figure 8 The present invention provides a schematic diagram of the parts where soapy water needs to be applied to the inspection participants after the on-site pipeline installation is completed and before the main transformer body is vacuumed. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figure 1 As shown, the present invention discloses a skill assessment method for substation equipment installation detail scenario based on Sketchup, comprising the following steps:

[0041] S1. Build the scene: Use Sketchup to build a 3D model, and obtain the local scenes of the assessment in different time periods based on the built 3D model;

[0042] S2. Operational interaction: Conduct interactive assessment on the participants and obtain their final scores;

[0043] S3. Evaluation results: The final scores are used to distinguish the technical levels of the participants, and the skill levels of the participants are reflected according to different score segments.

[0044] Furthermore, Sketchup was used to construct a three-dimensional model in S1, and the specific contents of the assessment local scenes in different time periods were obtained based on the constructed three-dimensional model:

[0045] Select the corresponding model from the Sketchup material library;

[0046] The model is split according to the construction process and components, and the internal structure of the model is refined to obtain a refined model that can truly simulate the construction process;

[0047] By reassembling and controlling the component models, different local assessment scenes are constructed at different time periods of the construction process.

[0048] Furthermore, local assessment scenarios include bushing installation scenario, main transformer sealing test scenario, and transformer oil filtration scenario.

[0049] Furthermore, in S2, the participants are interactively assessed, and the specific content of the final scores of the participants is as follows:

[0050] The assessees carry out the assessment in sequence, and various interactive methods are set up, such as voice prompts, detail magnification, and question assessment. The assessees choose a local scene for the assessment, and are interactively assessed through multiple-choice questions. The final scores of the assessees are determined based on the assessment results.

[0051] Furthermore, the participants carried out the assessment in the following order: construction preparation, tool selection, safety tool selection, safety fence setting, personnel briefing, main construction process, and finishing of work.

[0052] Furthermore, all assessment types of questions are divided into three dimensions: safety, quality, and technology. Questions in each dimension are assigned scores based on their difficulty. The full score for the assessment is 100 points. The score obtained after deducting all deductions is the final score of the participant.

[0053] Furthermore, S3 distinguishes the technical level of the participants by the final scores, and the specific contents of reflecting the skill level of the participants according to different score segments are as follows:

[0054] Automatically record the selected answers and scores of the participants in different assessment dimensions according to the operation process of the participants, calculate the assessment scores comprehensively, and obtain the final scores of the participants;

[0055] The participants will be evaluated as junior workers, intermediate workers, senior workers, technicians and senior technicians according to different performance categories.

[0056] Furthermore, 50-60 points are for junior workers, 60-70 points are for intermediate workers, 70-80 points are for senior workers, 80-90 points are for technicians, and 90-100 points are for senior technicians.

[0057] In a specific embodiment, the following are included

[0058] (1) Use SketchUp to build a 3D model. Through the construction of the model, the skill issues that need to be assessed in depth will be highlighted.

[0059] Traditional simulation focuses on overall simulation, but lacks in local details, and local scenes are constructed through Sketchup details. In addition, traditional modeling cannot reflect the dynamic changes of equipment. The present invention reflects the dynamic changes of equipment by constructing detailed scenes in different time periods. Traditional simulation modeling cannot examine the changes in working conditions caused by control variables, which is the focus of construction skills. The present invention deeply assesses the skill level of the participants by constructing the actual changes in working conditions under different control variables (such as the inclination angle of the casing after lifting at different binding points).

[0060] Using Sketchup to build a 3D model specifically includes:

[0061] like Figure 3 As shown, select the corresponding or similar model from the Sketchup library; (simple models can be drawn by yourself);

[0062] Break up the model and then refine and improve it;

[0063] Use Sketchup to build the scene to be tested;

[0064] Participants will be assessed through multiple-choice questions.

[0065] (2) Set up a variety of interactive methods to guide participants to conduct skill assessments through interactive methods such as voice prompts, detail magnification, and question assessment.

[0066] The assessment participants enter the assessment system from the first-person perspective. Figure 4 As shown, the system gradually guides the participants to carry out the assessment in the following order: construction preparation; selection of tools and equipment; selection of safety tools and equipment; setting up of safety fences; personnel briefing; main construction process; and finishing of work.

[0067] At each step, the system will guide the participants to click with the mouse, set up multiple interactive methods, and prepare for construction (such as Figure 5 As shown), tool selection (such as Figure 6 ), during the safety tool selection stage, a tool model is built for participants to choose from, and the selected tools are assessed to see whether they are complete. For important tools such as cranes, the construction scenario is asked to let the participants calculate the forces, and then the cranes are selected based on their performance curves; risk control points are set for safety fences, and participants are assessed to see whether they have set up safety fences in accordance with the principle of full coverage; during the main construction process stages, participants are interactively assessed through flashing reminders of details, selection of key technical points for the process, selection of key quality points for the process, and filling in of main technical parameters of the process.

[0068] (3) Evaluate the installation technical level and distinguish the technical levels of the participants through system recognition of answers.

[0069] In the assessment system, all assessment questions are divided into three dimensions: safety, quality, and technology. Questions in each dimension are assigned scores according to the degree of difficulty. After the participants have completed the corresponding assessment scenarios, they will follow the system prompts to traverse the construction preparation, tool selection, safety tool selection, safety fence setting, personnel briefing, main construction process, and closing steps. During the process, they will complete the relevant assessment questions in an interactive manner. The full score for the assessment result is 100 points, and the score obtained after deducting all deductions is the final score of the participant. After clicking "End", the system calculates the assessment score based on the participant's answer, and reflects the skill level of the participant according to different segments. The skill level is divided into junior worker, intermediate worker, senior worker, technician, and senior technician. Among them, 50-60 points are for junior workers, 60-70 points are for intermediate workers, 70-80 points are for senior workers, 80-90 points are for technicians, and 90-100 points are for senior technicians.

[0070] Ten examinees were randomly selected and assessed in different ways. The scores are shown in Table 1:

[0071] Table 1 Assessment score sheet

[0072]

[0073]

[0074] Judging from the scores of randomly selected technicians who participated in the assessment, after adding detailed scenes built based on Sketchup, the scores of the assessment test became more discrete, making it easier to distinguish the skill levels of the assessors.

[0075] In another specific embodiment, the following are included

[0076] Select corresponding or similar models from the Sketchup library; break up the models and refine and improve them; construct the scene to be tested using Sketchup. Figure 7 and Figure 8 As shown; the installers are assessed through multiple-choice questions.

[0077] Figure 7 To examine the participants' ability to adjust the inclination of the single-point lifting casing (the installation requirement is that the angle between the casing and the vertical direction is 34°).

[0078] The assessment requires that the vertical angle of the casing after the simulated trial lifting is 27 degrees. The person being assessed is requested to determine the adjustment direction of the sling binding point.

[0079] In order to successfully complete the lifting of the casing under the above working conditions, please choose the adjustment method of the lifting point: A. Move the lifting point downward after the casing is leveled; B. Move the lifting point upward after the casing is leveled.

[0080] Answer: The lifting point of A casing is moved down after it is laid flat. Analysis: The vertical angle of the casing installation is 34°. The casing selects the lifting point. After the lifting strap is firmly tied, it is lifted out of the packaging box and tried to lift it. The on-site measurement personnel measured that the vertical angle of the casing is 27°, and it cannot enter the lifting seat smoothly. The lifting point needs to be adjusted, that is, the lifting point of A casing is moved down after it is laid flat.

[0081] Figure 8 In order to examine the participants' understanding of the overall sealing test required after the on-site pipeline installation is completed and before the main transformer body is vacuumed, the soapy water method is used and the assessment questions are selected on the parts that need to be coated.

[0082] and Figure 1 Corresponding to the method described above, the embodiment of the present invention also provides a substation equipment installation detail scenario skill assessment system based on Sketchup, which is used to Figure 1 The specific implementation of the method is shown in the following diagram: Figure 2 As shown, it includes: building scenario module, operation interaction module and evaluation result module;

[0083] The scene building module is connected to the input end of the operation interaction module and is used to build a three-dimensional model using Sketchup, and obtain the assessment local scenes of different time periods based on the built three-dimensional model;

[0084] The operation interaction module is connected to the input end of the evaluation result module and is used to interactively evaluate the participants and obtain the final scores of the participants;

[0085] The evaluation result module is used to distinguish the technical levels of the participants through the final scores, and reflect the skill levels of the participants according to different score segments.

[0086] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0087] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A skill assessment method for substation equipment installation details scenario based on Sketchup, characterized in that: The following steps are involved: S1. Build the scene: Use Sketchup to build a 3D model, and obtain the local scenes of the assessment in different time periods based on the built 3D model; S2. Operational interaction: Conduct interactive assessment on the participants and obtain their final scores; S3. Evaluation results: The final scores are used to distinguish the technical levels of the participants, and the skill levels of the participants are reflected according to different score segments.

2. According to claim 1, a skill assessment method for substation equipment installation details scenario based on Sketchup is characterized in that: In S1, Sketchup was used to construct a 3D model. Based on the constructed 3D model, the specific contents of the assessment local scenes in different time periods were obtained as follows: Select the corresponding model from the Sketchup material library; The model is split according to the construction process and components, and the internal structure of the model is refined to obtain a refined model that can truly simulate the construction process; By reassembling and controlling the component models, different local assessment scenes are constructed at different time periods of the construction process.

3. According to claim 2, a skill assessment method for substation equipment installation details scenario based on Sketchup is characterized in that: The local assessment scenarios include bushing installation scenario, main transformer sealing test scenario, and transformer oil filtration scenario.

4. According to claim 1, a skill assessment method for substation equipment installation details scenario based on Sketchup is characterized in that: In S2, the participants are interactively assessed, and the final scores of the participants are as follows: The assessees carry out the assessment in sequence, and various interactive methods are set up, such as voice prompts, detail magnification, and question assessment. The assessees choose a local scene for the assessment, and are interactively assessed through multiple-choice questions. The final scores of the assessees are determined based on the assessment results.

5. According to claim 4, a skill assessment method for substation equipment installation details scenario based on Sketchup is characterized in that: Participants shall carry out the assessment in the following order: construction preparation, tool selection, safety tool selection, safety fence setting, personnel briefing, main construction process, and finishing of work.

6. According to claim 4, a skill assessment method for substation equipment installation details scenario based on Sketchup is characterized in that: All types of assessment questions are divided into three dimensions: safety, quality, and technology. Questions in each dimension are assigned scores based on their difficulty. The full score for the assessment is 100 points. The score obtained after deducting all deductions is the final score of the participant.

7. According to claim 1, a skill assessment method for substation equipment installation details scenario based on Sketchup is characterized in that: In S3, the final scores are used to distinguish the technical levels of the participants. The specific contents of the skill levels of the participants are as follows: Automatically record the selected answers and scores of the participants in different assessment dimensions according to the operation process of the participants, calculate the assessment scores comprehensively, and obtain the final scores of the participants; The participants will be evaluated as junior workers, intermediate workers, senior workers, technicians and senior technicians according to different performance categories.

8. The method for skill assessment of substation equipment installation details scenario based on Sketchup according to claim 7 is characterized in that: 50-60 points are for junior workers, 60-70 points are for intermediate workers, 70-80 points are for senior workers, 80-90 points are for technicians, and 90-100 points are for senior technicians.

9. A skill assessment system for substation equipment installation details based on Sketchup, characterized in that: A method for assessing substation equipment installation detail scenario skills based on Sketchup as described in any one of claims 1 to 8, comprising: building a scenario module, an operation interaction module and an evaluation result module; The scene building module is connected to the input end of the operation interaction module and is used to build a three-dimensional model using Sketchup, and obtain the assessment local scenes of different time periods based on the built three-dimensional model; The operation interaction module is connected to the input end of the evaluation result module and is used to interactively evaluate the participants and obtain the final scores of the participants; The evaluation result module is used to distinguish the technical levels of the participants through the final scores, and reflect the skill levels of the participants according to different score segments.

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