Multifunctional instrument digitization practical training examination device

Abstract

The invention, which belongs to the technical field of electrical instrument and meter practical training examination, discloses a multifunctional instrument and meter digital practical training examination apparatus comprising a teacher end control module; an automatic evaluation module; a teaching resource module; a teaching training module; an assessment module; a real-time monitoring module; a student information management module; according to the invention, a plurality of test functions are integrated, a digital real electrician measurement environment is provided, an automatic evaluation function is provided, on one hand, more practical training scenes are brought to students, on the other hand, through visual video demonstration, the students are helped to master correct use methods of instruments and meters more quickly, and the practical training efficiency is improved. And the students can complete all operation processes step by step under the guidance of the system, and can learn correct measurement methods and skills, so that the teaching quality and efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of practical training and assessment of electrician instruments and meters, and in particular relates to a multifunctional digital practical training and assessment device for instruments and meters. Background Art

[0002] In the field of teaching and training of electrical instrumentation, the traditional training system has many drawbacks;

[0003] 1. When setting the resistance, current, voltage and other parameters of the measurement object, traditional systems usually can only be set manually, which is cumbersome and inflexible, and cannot provide students with a variety of practical training scenarios. When it is necessary to simulate complex and changeable circuit conditions, manual settings are not only time-consuming and laborious, but also difficult to meet teaching needs, limiting students' familiarity and mastery of different measurement scenarios.

[0004] Second, the traditional training system lacks automatic evaluation function. Teachers need to spend a lot of time and energy to manually correct and evaluate students' measurement results, which is inefficient and prone to subjective errors. This not only increases the workload of teachers, but also may affect the fairness and accuracy of the evaluation, and is not conducive to timely feedback on students' learning situation.

[0005] 3. The traditional teaching method of teaching the use of instruments mainly relies on teachers' on-site demonstrations and written teaching materials; this method lacks intuitiveness, and students have difficulty understanding some abstract operating steps and principles, resulting in poor learning effects.

[0006] Fourth, the traditional training system performs poorly in terms of functional integration. Different measurement functions often require the use of multiple independent systems. There is a lack of effective coordination and unified management between the systems, resulting in large space occupied by the training site and high system maintenance costs. At the same time, it is not conducive to students systematically mastering the use skills and comprehensive application capabilities of various electrical instruments and meters.

[0007] With the continuous development of educational technology and the increasing demand for high-quality electrician talents, a multifunctional instrument digital training and assessment device that can solve the above problems is particularly important. Summary of the invention

[0008] Problem to be solved

[0009] In view of the problems raised in the existing background technology, the present invention provides a multifunctional instrument digital training and assessment device.

[0010] Technical Solution

[0011] To solve the above problems, the present invention adopts the following technical solutions.

[0012] Multifunctional digital instrument training and assessment device: including:

[0013] Teacher-side control module: used to set the resistance, current and voltage parameters of the measurement object;

[0014] Automatic evaluation module: used to receive the measurement results entered by students and automatically determine the correctness of the results;

[0015] Teaching resource module: video tutorials on how to use built-in instruments and meters, providing intuitive video demonstrations;

[0016] Teaching training module: used to demonstrate the operation steps through videos and guide students to complete the measurement operation step by step;

[0017] Assessment module: used to set questions and receive students' measurement results, and automatically evaluate students' performance;

[0018] Real-time monitoring module: used to monitor the current, voltage, and resistance of the device in real time, and display the current measured values ​​after the students submit their answers;

[0019] Student information management module, used to enter and manage student information.

[0020] Preferably, the teaching resource module also includes a video viewing and answering module, a testing module and a learning process management module;

[0021] The video viewing and question answering module is used to pop up questions when students are watching related videos, and students can continue watching only after they have completed the questions;

[0022] The test module is used to detect the learning effect of students;

[0023] The learning process management module is used for inputting videos and exercises and managing the operation process when students watch videos and take tests.

[0024] Furthermore, it also includes:

[0025] Current detection module: used for students to measure the current of the part to be tested;

[0026] AC / DC resistance measurement module: used for students to measure the AC voltage, DC voltage and resistance of the part to be measured;

[0027] Insulation resistance measurement module: used for students to measure the resistance value of each section of the part to be tested;

[0028] Ground resistance measurement module: used for students to measure the ground resistance value of the part to be measured.

[0029] Preferably, it also includes a camera module, which is used to monitor the students during the practical training assessment.

[0030] Beneficial Effects

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] (1) The present invention integrates multiple test functions, provides a digital real electrical measurement environment, and provides an automatic evaluation function. On the one hand, it brings more practical training scenarios to students. On the other hand, through intuitive video demonstrations, it helps students master the correct use of instruments and meters more quickly. Under the guidance of this system, students can complete all operation processes step by step, learn correct measurement methods and techniques, and improve teaching quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the embodiments or exemplary descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application and should not be regarded as limiting the scope. For ordinary technicians in this field, other drawings can be obtained according to the drawings without paying creative work.

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 This is a schematic diagram of the operation of the teacher-side control module in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a student watching a video and testing process in an embodiment of the present invention;

[0037] Figure 4 A schematic diagram of a teaching process in an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the assessment process in an embodiment of the present invention;

[0039] Figure 6 This is a practical operation flow chart of current detection in an embodiment of the present invention;

[0040] Figure 7 This is a practical flow chart of AC and DC resistance measurement in an embodiment of the present invention;

[0041] Figure 8 This is a practical flow chart of insulation resistance measurement in an embodiment of the present invention;

[0042] Fig. 9 This is a practical flow chart of ground resistance measurement in an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0045] Example 1

[0046] like Figure 1-Figure 3 As shown, the multifunctional digital instrument training and assessment device includes:

[0047] Teacher-side control module: used to set the resistance, current and voltage parameters of the measurement object;

[0048] When conducting resistance measurement training, teachers can flexibly set the resistance value of the measurement object according to the teaching objectives and the actual situation of the students. They can set conventional resistance values ​​for students to conduct basic measurement exercises, or simulate resistance values ​​in complex circuits, such as setting the equivalent resistance value of multiple resistors in series or parallel, so that students can improve their measurement skills in more challenging scenarios. When setting current and voltage parameters, they can also be diversified according to different teaching scenarios to provide students with rich training materials.

[0049] Automatic evaluation module: used to receive the measurement results entered by students and automatically determine the correctness of the results;

[0050] After students have completed the measurement and entered the results, the automatic assessment module begins to work;

[0051] In specific implementation, for example, in a current measurement test, students use the current detection module to measure the current value of a circuit and enter the measurement results into the system. The automatic evaluation module will compare the results entered by the students with the pre-set correct answers to quickly determine the correctness of the results. If the student's measurement results are within the allowable error range, they are judged to be correct. If they exceed the error range, they are judged to be wrong, and corresponding prompt information is given, such as the error range, possible causes of the errors, etc., to help students understand their mistakes so as to carry out targeted learning and improvement.

[0052] It should be noted that the specific numerical setting of the error range can be set by teachers based on the teaching content.

[0053] Teaching resource module: video tutorials on how to use built-in instruments and meters, providing intuitive video demonstrations;

[0054] The teaching resource module has built-in video tutorials on how to use instruments and meters. When students enter the learning session, they click on the smart screen to watch the video, and the video viewing and question answering module will pop up questions in due course during the video playback.

[0055] In specific implementation, for example, in a video explaining how to use a multimeter, after introducing how to choose the appropriate range, a question pops up: "When measuring an unknown voltage, which range of the multimeter should you choose first?" Students can continue watching the video only after they answer the question correctly. This can effectively improve students' concentration when watching the video and deepen their understanding of the knowledge points.

[0056] Reference Figure 5 After students complete the video learning, the test module will provide a series of targeted test questions to comprehensively test students’ mastery of the knowledge of instrument use.

[0057] The learning process management module is responsible for managing the entry of videos and exercises, ensuring the updating and improvement of teaching content, and at the same time standardizing the operating procedures of students when watching videos and taking tests, to ensure the orderly progress of the learning process.

[0058] Reference Figure 4 ,Teaching training module: used to demonstrate the operation steps through videos and guide students to complete the measurement operation step by step;

[0059] The teaching training module provides students with intuitive learning guidance by demonstrating the operation steps through videos.

[0060] In the specific implementation, taking insulation resistance measurement as an example, students open the teaching training module and watch a demonstration video on the use of the ZC25-4 insulation resistance meter; the video shows in detail the entire process from preparation, such as checking whether the instrument appearance is intact and whether the test line is connected normally, to actual measurement operations, such as how to connect the test line to the object to be measured and how to shake the handle of the insulation resistance meter to obtain a stable reading;

[0061] Students perform the operations according to the steps in the demonstration video. After entering the test results, the system will promptly provide feedback on whether the test results are correct or not. If students make mistakes in operation, the system will prompt the wrong steps and the correct operation methods, guiding students to gradually master the correct measurement techniques.

[0062] Reference Figure 5 ,Assessment module: used to set questions and receive students’ measurement results, and automatically evaluate students’ ,performance;

[0063] The assessment module is responsible for setting questions and receiving students' measurement results, and automatically evaluating students' performance.

[0064] In specific implementation, for example, in a comprehensive assessment, the assessment module will randomly generate a set of test papers containing multiple measurement tasks such as current measurement, AC / DC resistance measurement, and insulation resistance measurement; students are required to measure the current of a specific branch in a complex circuit, the AC / DC resistance of a component, and the insulation resistance of the circuit to the ground; students use the corresponding measurement modules to measure according to the requirements of the questions and enter the results into the system; the assessment module evaluates the students' measurement results according to the preset scoring criteria and gives corresponding grades;

[0065] It should be noted that the scoring criteria not only consider the accuracy of the measurement results, but also factors such as students' operating standards and completion time to comprehensively evaluate students' comprehensive abilities.

[0066] Real-time monitoring module: used to monitor the current, voltage, and resistance of the device in real time, and display the current measured values ​​after the students submit their answers;

[0067] The real-time monitoring module continuously monitors the current, voltage, and resistance of the device; when students perform measurement operations, the module collects data in real time.

[0068] After the student submits the answer, the system will display the current, voltage, and resistance values ​​of the device during the current measurement on the interface.

[0069] In specific implementation, for example, when students use the AC / DC resistance measurement module to measure resistance, the real-time monitoring module records the current and voltage changes during the measurement process; after the students submit the results, the system displays the actual current, voltage values ​​and measured resistance values ​​at the time of measurement, which makes it convenient for students to compare and analyze the differences between their own measurement results and the actual situation, helping students to discover possible problems in the measurement process and improve their measurement skills.

[0070] Student information management module, used to enter and manage student information;

[0071] Teachers can enter the student information management module through the management terminal and enter students' basic information, such as name, student number, class, etc.

[0072] During the practical training assessment process, this module can work in conjunction with other modules to associate and store students' assessment scores, learning records and other information with their personal information.

[0073] In specific implementation, for example, after each assessment, the student scores generated by the automatic evaluation module and the assessment module will be automatically stored in the student information management module, which is convenient for teachers to view and manage students' learning situation at any time, and also convenient for tracking and analyzing students' learning process, providing data support for teaching improvement.

[0074] Reference Figure 1 , Figure 6-Figure 9 ,The teaching resource module also includes a video viewing and answering module, a test module and a learning ,process management module;

[0075] The video watching and answering module is used to pop up questions while students are watching related videos. Students can continue watching only after they have completed the questions.

[0076] The test module is used to test students’ learning effects;

[0077] The learning process management module is used for the input of videos and exercises and the operation process management of students watching videos and taking tests;

[0078] Also includes:

[0079] Current detection module: used for students to measure the current of the part to be tested;

[0080] AC / DC resistance measurement module: used for students to measure the AC voltage, DC voltage and resistance of the part to be measured;

[0081] Insulation resistance measurement module: used for students to measure the resistance value of each section of the part to be tested;

[0082] Ground resistance measurement module: used for students to measure the ground resistance value of the part to be measured.

[0083] Reference Figure 6-Figure 9 ,In the actual operation, current detection module: When students use the current detection module, they should first cut off the power of the circuit to be tested to ensure safety; then select a suitable ammeter, such as the clamp ammeter DE4206+.

[0084] Open the jaws of the clamp ammeter and put them around the wire to be measured, with the wire located in the center of the jaws to ensure the accuracy of the measurement; students read the current value displayed on the ammeter and enter the data into the system by operating the smart screen;

[0085] It should be noted that in actual operation, some interference factors may be encountered, such as the presence of strong magnetic fields around. At this time, students need to take corresponding measures based on the knowledge they have learned to eliminate interference and ensure the reliability of the measurement results.

[0086] AC and DC resistance measurement module: When measuring AC and DC resistance, students first estimate the resistance range based on the object to be measured and select a suitable measuring instrument, such as the UT890D+ multimeter.

[0087] If you are measuring DC resistance, set the multimeter to the DC resistance measurement position; if you are measuring AC resistance, set the multimeter to the AC resistance measurement position.

[0088] The specific implementation operation is to correctly connect the test leads of the multimeter to the two ends of the object to be tested, read the resistance value displayed by the multimeter and enter it into the system.

[0089] It should be noted that during the measurement process, attention should be paid to the good contact between the test leads and the object to be measured to avoid measurement errors caused by poor contact.

[0090] Insulation resistance measurement module: For insulation resistance measurement, students use ZC25-4 insulation resistance meter; before measurement, cut off the power supply of the device to be tested and discharge the device to ensure safety; connect the E end of the insulation resistance meter to the ground and the L end to the object to be tested; shake the handle of the insulation resistance meter evenly at a speed of about 120 revolutions per minute, and after the pointer stabilizes, read the insulation resistance value and enter it into the system.

[0091] It should be noted that during the operation, care should be taken to keep the handle shaking at a uniform speed to avoid affecting the measurement results due to too fast or too slow speed.

[0092] Ground resistance measurement module: When measuring ground resistance, students use the ZC25-4 insulation resistance meter.

[0093] Place the meter at a certain distance from the grounding body and connect the test line as required; measure the grounding resistance value by operating the meter and enter it into the system.

[0094] It should be noted that in actual measurements, attention should be paid to the length and connection method of the test line, as well as the influence of factors such as the humidity of the surrounding soil on the measurement results.

[0095] Reference Figure 1 The camera module in the training system can conduct all-round monitoring of students during the assessment process.

[0096] During the assessment process, the camera module continuously records video and stores the video data in the system's storage device. If abnormal scores or disputes are found after the assessment, the teacher can view the video recorded by the camera module, replay the student's assessment process, check whether the student's operation is standardized, whether there is any cheating, etc., to ensure the fairness of the assessment. At the same time, the video recorded by the camera module can also be used as a teaching resource for subsequent teaching analysis and case explanations to help other students better understand the correct operating methods and precautions.

[0097] This system integrates multiple test functions, provides a digital real electrical measurement environment, and provides automatic evaluation functions. On the one hand, it brings more practical training scenarios to students, and on the other hand, through intuitive video demonstrations, it helps students master the correct use of instruments and meters more quickly. Under the guidance of this system, students can complete all operation processes step by step, learn correct measurement methods and techniques, and improve teaching quality and efficiency.

[0098] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. Multifunctional digital instrument training and assessment device, characterized in that: include: Teacher-side control module: used to set the resistance, current and voltage parameters of the measurement object; Automatic evaluation module: used to receive the measurement results entered by students and automatically determine the correctness of the results; Teaching resource module: video tutorials on how to use built-in instruments and meters, providing intuitive video demonstrations; Teaching training module: used to demonstrate the operation steps through videos and guide students to complete the measurement operation step by step; Assessment module: used to set questions and receive students' measurement results, and automatically evaluate students' performance; Real-time monitoring module: used to monitor the current, voltage, and resistance of the device in real time, and display the current measured values ​​after the students submit their answers; Student information management module, used to enter and manage student information.

2. The multifunctional digital instrument training and assessment device according to claim 1 is characterized in that: The teaching resource module also includes a video viewing and answering module, a testing module and a learning process management module; The video viewing and question answering module is used to pop up questions when students are watching related videos, and students can continue watching only after they have completed the questions; The test module is used to detect the learning effect of students; The learning process management module is used for inputting videos and exercises and managing the operation process when students watch videos and take tests.

3. The multifunctional digital instrument training and assessment device according to claim 1 is characterized in that: Also includes: Current detection module: used for students to measure the current of the part to be tested; AC / DC resistance measurement module: used for students to measure the AC voltage, DC voltage and resistance of the part to be measured; Insulation resistance measurement module: used for students to measure the resistance value of each section of the part to be tested; Ground resistance measurement module: used for students to measure the ground resistance value of the part to be measured.

4. The multifunctional digital instrument training and assessment device according to claim 1 is characterized in that: It also includes a camera module, which is used to monitor students during the practical training assessment.

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