Centralized electrician training and checking device

Abstract

The invention provides a centralized electrician training examination device, which comprises an operation platform, the operation platform is provided with a metal frame and an operation panel installed on the surface of the metal frame, the operation panel is made of an insulating material, and the operation panel is provided with a power supply access area, a circuit element installation area and a test point area; the fault setting module is provided with a plurality of fault points in a circuit, the fault points are quickly set and recovered through switches hidden behind the operation panel or plug-in connection, and the fault types of the fault points comprise circuit open circuit, short circuit and element damage; the buffer structure is arranged at the bottom of the operation platform and used for reducing vibration impact on the device; and the power connection device comprises a power connection socket and a power connection plug which are located in the power supply access area, and the power connection plug and the socket are provided with fool-proof structures. The centralized electrician training examination device can objectively and accurately score examinees to be examined.

Description

Technical Field

[0001] The present application relates to the technical field of electrician training and assessment devices, and in particular to a centralized electrician training and assessment device. Background Art

[0002] The electrician training and assessment device is a device that integrates teaching, training and assessment. It is mainly used to help trainees better understand and master the basic theories and practical operation skills of electrical technology. Traditional training and assessment devices have many shortcomings. On the one hand, the existing device structure is often relatively simple, and the operating platform lacks a complete protection and stability design. For example, there is no special buffer structure. When it is subjected to external vibrations (such as during daily activities or transportation at the training venue), it is easy to cause problems such as loose internal components and poor contact, which affects the service life of the device and the accuracy of the assessment.

[0003] In the power connection part, many existing devices do not have an effective fool-proof design, and it is easy for the plug to be inserted incorrectly, which may not only damage the device, but also bring safety hazards to the operator, such as short circuit, electric shock and other dangers.

[0004] For the circuit component installation area, traditional devices may simply provide a plane for placing components. The connection between components and devices is not stable and reliable enough, and there is a lack of specially designed card slots and high-quality conductive structures. This will cause components to loosen easily during training, affecting the normal construction and testing of circuits, increasing the difficulty and uncertainty of training and assessment. Moreover, there is no effective component installation detection mechanism, and installation errors cannot be discovered in time. Summary of the invention

[0005] In view of this, the embodiment of the present application provides a centralized electrician training and assessment device to solve at least one problem existing in the background technology, an operating platform, which has a metal frame and an operating panel installed on the surface of the metal frame, the operating panel is made of fireproof, moisture-proof and anti-static insulating material, and the operating panel is provided with a power access area, a circuit element installation area and a test point area;

[0006] A fault setting module is provided in the circuit with multiple fault points that can be quickly set and restored through switches hidden behind the operation panel or plug-in connections. The fault types of the fault points include line disconnection, short circuit, and component damage;

[0007] A buffer structure is arranged at the bottom of the operating platform, and the buffer structure includes a plurality of evenly distributed shock absorbing springs and a rubber pad located at the bottom of the shock absorbing springs, one end of the shock absorbing spring is connected to the bottom of the operating platform, and the other end is connected to the rubber pad, so as to reduce the vibration impact on the device;

[0008] The power connection device comprises a power connection socket and a power connection plug located in a power connection area, wherein the power connection socket is provided with a plurality of conductive sheets, the power connection plug is provided with pins matching the conductive sheets, the surface of the pins is plated with a metal nickel layer, the power connection plug and the socket are provided with a foolproof structure, and the foolproof structure comprises:

[0009] A raised guide block is provided on one side of the pin of the power plug, and a guide groove matching the shape of the guide block is provided at the corresponding position of the power socket. The guide block can only be inserted along the guide groove to prevent the plug from being inserted in reverse.

[0010] The pins of the power plug are asymmetrically distributed, with different pins of different functions having different lengths. The longest pin is the ground pin, which is fixed on one side of the plug. The corresponding socket depth of the power socket also matches the pin length to ensure the correct insertion direction.

[0011] Color markings are set at the connection between the power plug and the socket. The part where the grounding pin is located is marked with yellow and green colors, and other functional pins have different color markings, which correspond to the corresponding color marking areas on the socket to guide the correct connection.

[0012] Furthermore, the circuit element installation area includes a plurality of element installation slots, the inner walls of the slots are provided with elastic conductive sheets, the elastic conductive sheets are made of phosphor bronze material and the surface is silver-plated, and are used for reliable contact and conduction with the pins of the circuit elements. The shape of the slots is adapted to the appearance of different types of circuit elements, including direct-insert slots for installing resistors, capacitors, and inductors, and slots of specific shapes for installing switches, contactors, and relays.

[0013] Furthermore, a wiring channel is provided below the circuit element installation area, and a clip for fixing the wires is provided in the wiring channel. The clip is made of insulating plastic material and can be opened and closed by pressing. It is used to organize and fix circuit connections, keep the circuit tidy, and avoid interference between wires.

[0014] Furthermore, the elastic conductive sheet of the component mounting slot is connected to a detection circuit, which can detect in real time whether the component is correctly installed. When the component is installed in place and in good contact with the conductive sheet, the detection circuit outputs a normal signal. When the component is installed incorrectly or in poor contact, the detection circuit outputs an abnormal signal to the scoring system.

[0015] Furthermore, the test point area includes a plurality of test point jacks, each of which is connected to an independent signal transmission line. The signal transmission line uses a shielded wire, the outer layer of which is an insulating polyvinyl chloride material, and the inner metal shielding layer is a copper wire mesh.

[0016] Furthermore, the test point jack is inclined at a certain angle to the surface of the operation panel, and the angle range is between 10-30 degrees.

[0017] Furthermore, it is characterized in that the test point area also includes a line collection device, which is used to store the signal transmission line led out from the test point jack. A rotatable winding shaft is provided inside the line collection device, and a wire groove for fixing the line is provided on the winding shaft.

[0018] Furthermore, when grading the actual operation assessment, the scoring system sets time threshold parameters for motor starting and speed regulation operations. If the operation completion time is within the preset time threshold, a corresponding time score reward is given. If the time threshold is exceeded, a certain score is deducted based on the excess ratio.

[0019] Furthermore, the scoring criteria of the scoring system are stored in an encrypted database, and the encrypted database uses an AES encryption algorithm to encrypt the scoring criteria data.

[0020] Furthermore, the scoring system assigns different score weights to the fault diagnosis and troubleshooting operations according to the difficulty of the fault point, gives higher score weights to fault points that are more difficult to detect and repair, and records the time spent by the trainees to find each fault point, and further adjusts the score for this part according to the length of time.

[0021] The beneficial effects of this application are:

[0022] The scoring system of this application sets time threshold parameters for motor starting and speed regulation operations, and gives corresponding time score rewards or deductions according to the time it takes to complete the operation. It can accurately measure the trainees' proficiency in this area, motivate trainees to improve their operating speed and accuracy, and more scientifically evaluate the trainees' actual operating capabilities. The scoring criteria are stored in an encrypted database using the AES encryption algorithm, which effectively prevents data from being tampered with, ensures the security and stability of the scoring criteria, and ensures the fairness and seriousness of the assessment. For fault diagnosis and troubleshooting operations, score weights are assigned according to the difficulty of the fault point, and the score is further adjusted considering the time it takes for the trainee to find the fault point. This scoring method comprehensively and objectively evaluates the trainees' ability in fault handling, which is more in line with the requirements for electrician skills in actual work, and helps to select trainees who truly have a high level of fault handling capabilities.

[0023] The fault setting module in this application uses switches or plug-in connections hidden behind the operation panel to quickly set and restore the fault point, and covers a variety of common fault types such as line break, short circuit, component damage, etc. This makes the training and assessment process more flexible and diverse, and can simulate various circuit fault conditions in real scenarios, effectively train trainees' fault diagnosis and troubleshooting capabilities, and improve training effects and the authenticity of assessments.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Reference numerals:

[0028] 1. Operation platform; 2. Operation panel; 3. Power access area; 4. Circuit component installation area; 5. Test point area; 6. Buffer structure;. DETAILED DESCRIPTION

[0029] The exemplary embodiments disclosed in the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the specific embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope disclosed in the present application to those skilled in the art.

[0030] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features known in the art are not described; that is, all features of the actual embodiments are not described here, and well-known functions and structures are not described in detail.

[0031] In the drawings, the sizes of layers, regions, elements and their relative sizes may be exaggerated for clarity. Like reference numerals denote like elements throughout.

[0032] It should be understood that when an element or layer is referred to as "on ...", "adjacent to ...", "connected to" or "coupled to" other elements or layers, it can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element or layer. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part. And when the second element, component, region, layer or part is discussed, it does not indicate that the present application necessarily has the first element, component, region, layer or part.

[0033] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used here for convenience of description to describe the relationship between an element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, the spatial relationship terms are intended to also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is turned over, then the elements or features described as "under other elements" or "under it" or "under it" will be oriented as "on" other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0034] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0035] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other implementation methods.

[0036] like Figure 1 As shown, this embodiment provides a centralized electrician training and assessment device including an operating platform 1, which has a metal frame and an operating panel 2 installed on the surface of the metal frame, the operating panel is made of fireproof, moisture-proof and anti-static insulating material, and the operating panel is provided with a power access area 3, a circuit element installation area 4 and a test point area 5;

[0037] Optionally, the operating platform is composed of a metal frame as the basic support structure. The metal frame is made of a solid and highly conductive metal material, such as aluminum alloy, to ensure the stability of the overall structure. An operating panel is installed on the surface of the metal frame. The operating panel is made of fireproof, moisture-proof, and anti-static insulating materials. Specifically, epoxy glass cloth can be used. This material can not only effectively resist the risk of fire and prevent fires caused by sparks accidentally generated during circuit operation, but also maintain good insulation performance in a humid environment to avoid leakage caused by moisture. At the same time, its anti-static properties can prevent static electricity from damaging circuit components.

[0038] The operation panel clearly divides the power access area, circuit component installation area and test point area. The layout of each area is reasonable, which is convenient for users to perform corresponding operations.

[0039] A fault setting module is provided in the circuit with multiple fault points that can be quickly set and restored through switches hidden behind the operation panel or plug-in connections. The fault types of the fault points include line disconnection, short circuit, and component damage;

[0040] Optionally, a fault setting module is set in the circuit, and the fault point can be quickly set and restored by cleverly arranging multiple switches behind the operation panel or using plug-in connections. These fault points cover a variety of common fault types such as line disconnection, short circuit, and component damage. For example, for a line disconnection fault, a disconnectable plug-in connection can be set at a specific line connection. When a disconnection fault needs to be simulated, the connection can be unplugged; for a short circuit fault, a hidden switch can be set at a suitable location, and closing the switch can cause the corresponding line to form a short circuit state; for a component damage fault, a switchable connection structure can be set at the component pin, and the normal working state of the component can be changed after switching to simulate damage. This design enables the training and assessment process to flexibly simulate various circuit faults that may occur in real scenarios, and effectively train trainees' fault diagnosis and troubleshooting capabilities.

[0041] A buffer structure 6 is arranged at the bottom of the operating platform, and the buffer structure includes a plurality of evenly distributed shock absorbing springs and a rubber pad located at the bottom of the shock absorbing springs, one end of the shock absorbing spring is connected to the bottom of the operating platform, and the other end is connected to the rubber pad, so as to reduce the vibration impact on the device;

[0042] Optionally, a buffer structure is provided at the bottom of the operating platform, and the buffer structure is composed of a plurality of evenly distributed shock-absorbing springs and a rubber pad located at the bottom of the shock-absorbing spring. The shock-absorbing spring is selected to have a spring with a suitable elastic coefficient, one end of which is firmly connected to the bottom of the operating platform, and the other end is closely connected to the rubber pad. When the device is subjected to external vibrations, such as vehicle bumps during transportation or slight vibrations caused by movement of people, operation of equipment, etc. at the place of use, the shock-absorbing spring will first undergo elastic deformation to absorb part of the vibration energy, and the rubber pad will further play a role in buffering and shock absorption, reducing the vibration impact on the device, thereby protecting the circuit elements and connecting lines inside the device from looseness, poor contact and other problems caused by vibration, and ensuring the normal operation and service life of the device.

[0043] The power connection device comprises a power connection socket and a power connection plug located in a power connection area, wherein the power connection socket is provided with a plurality of conductive sheets, the power connection plug is provided with pins matching the conductive sheets, the surface of the pins is plated with a metal nickel layer, the power connection plug and the socket are provided with a foolproof structure, and the foolproof structure comprises:

[0044] A raised guide block is provided on one side of the pin of the power plug, and a guide groove matching the shape of the guide block is provided at the corresponding position of the power socket. The guide block can only be inserted along the guide groove to prevent the plug from being inserted in reverse.

[0045] The pins of the power plug are asymmetrically distributed, with different pins of different functions having different lengths. The longest pin is the ground pin, which is fixed on one side of the plug. The corresponding socket depth of the power socket also matches the pin length to ensure the correct insertion direction.

[0046] Color markings are set at the connection between the power plug and the socket. The part where the grounding pin is located is marked with yellow and green colors, and other functional pins have different color markings, which correspond to the corresponding color marking areas on the socket to guide the correct connection.

[0047] Optionally, the power plug and socket are equipped with a complete foolproof structure, as follows:

[0048] A raised guide block is provided on one side of the pin of the power plug, and a guide groove matching the shape of the guide block is provided at the corresponding position of the power socket. When performing the power connection operation, the guide block can only be inserted along the guide groove, so that the plug is physically prevented from being inserted in reverse, thus avoiding safety accidents such as short circuit and electric shock caused by wrong power connection.

[0049] The pins of the power plug are asymmetrically distributed, with different pins of different lengths. The longest pin is the ground pin, which is fixed on one side of the plug. The corresponding socket depth also matches the pin length. When connecting the power, the operator can intuitively determine the correct insertion direction by the difference in pin length and position, further ensuring the correctness of the power connection.

[0050] Color markings are set at the connection between the power plug and the socket. The grounding pin is marked with yellow and green, which is the grounding mark color that meets electrical safety standards. Other functional pins have different color markings and correspond to the corresponding color marking areas on the socket. When connecting the power, the operator can quickly and accurately complete the connection through color matching, improving the efficiency and accuracy of the power connection operation.

[0051] In addition, an insulating protective cover is provided on the outside of the power connection device. The protective cover is made of high-temperature resistant and wear-resistant insulating rubber material. It can further protect the operator from the risk of electric shock during the power connection process, and prevent external factors from damaging the plug and socket.

[0052] Optionally, the circuit element installation area includes a plurality of component installation slots, the inner walls of the slots are provided with elastic conductive sheets, the elastic conductive sheets are made of phosphor bronze material and the surface is silver-plated, and are used for reliable contact and conduction with the circuit element pins, and the shape of the slots is adapted to the appearance of different types of circuit elements, including direct-insert slots for installing resistors, capacitors, and inductors, and specifically shaped slots for installing switches, contactors, and relays.

[0053] Optionally, the circuit component installation area includes a plurality of component installation slots, and the inner wall of the slot is provided with an elastic conductive sheet. The elastic conductive sheet is made of phosphor bronze material, which has good conductivity and elasticity, and is silver-plated on its surface to further improve the conductivity. The shape of the slot is adapted to the appearance of different types of circuit components. For direct plug-in components such as resistors, capacitors, and inductors, direct plug-in slots are provided, and their sizes match parameters such as component pin spacing to facilitate direct insertion of components; for components with specific shapes such as switches, contactors, and relays, specific shape slots are provided, and the shape and size of the slots can accurately accommodate these components, ensuring that the components are firmly installed in the slots.

[0054] Optionally, a wiring channel is provided below the circuit element installation area. A clip for fixing the wires is provided in the wiring channel. The clip is made of insulating plastic material and can be opened and closed by pressing. It is used to organize and fix circuit connections, keep the circuit tidy, and avoid interference between wires.

[0055] Optionally, a wiring channel is provided below the circuit component installation area, and a clip for fixing the wire is provided in the wiring channel. The clip is made of insulating plastic material, such as polyvinyl chloride (PVC), which has good insulation properties and is soft and easy to operate. The clip can be opened and closed by pressing. When wiring the circuit, the wire is placed in the clip, and then the clip is pressed to close, so that the wire can be firmly fixed in the wiring channel, thereby arranging and fixing the circuit connection, keeping the circuit tidy, and avoiding interference between the wires, which is convenient for subsequent inspection and maintenance of the circuit.

[0056] Optionally, the elastic conductive sheet of the component mounting slot is connected to a detection circuit, which can detect in real time whether the component is correctly installed. When the component is installed in place and in good contact with the conductive sheet, the detection circuit outputs a normal signal. When the component is installed incorrectly or in poor contact, the detection circuit outputs an abnormal signal to the scoring system.

[0057] Optionally, the test point area includes multiple test point jacks, each test point jack is connected to an independent signal transmission line, the signal transmission line uses a shielded wire, the outer layer is an insulating polyvinyl chloride material, and the inner metal shielding layer is a copper wire mesh.

[0058] Optionally, the test point area includes multiple test point jacks, each of which is connected to an independent signal transmission line. The test point jacks are made of gold-plated copper material. The gold plating can significantly improve the conductivity and oxidation resistance of the jacks, ensuring that the measurement signal can be accurately transmitted during the measurement process. Each jack has a striking number mark, which is made by etching process, clear and not easy to wear, so that users can accurately identify different test points.

[0059] Optionally, the test point jack is inclined at a certain angle to the surface of the operation panel, and the angle range is between 10-30 degrees.

[0060] Optionally, the test point jack is tilted at a certain angle to the surface of the operation panel, with the angle range being between 10 and 30 degrees. In actual operation, when a test probe is inserted into the test point jack, this tilt angle design makes it easier to insert the probe, reduces damage to the jack during insertion, prolongs the service life of the jack, and also improves test efficiency.

[0061] The test point area also includes a wire collection device, which is used to store the signal transmission line led out from the test point jack. A rotatable winding shaft is provided inside the wire collection device, and there is a wire groove for fixing the line on the winding shaft. During use, the signal transmission line can be wound on the winding shaft and the line can be placed in the corresponding wire groove. The tightness of the line can be adjusted by rotating the winding shaft to keep the line neat and avoid line entanglement, which is convenient for the management and maintenance of the test point area.

[0062] Optionally, the test point area also includes a line collection device, which is used to accommodate the signal transmission line led out from the test point jack. A rotatable winding shaft is provided inside the line collection device, and a wire groove for fixing the line is provided on the winding shaft.

[0063] Optionally, when grading the actual operation assessment, the scoring system sets a time threshold parameter for motor starting and speed regulation operations. If the operation completion time is within the preset time threshold, a corresponding time score reward is given. If the time threshold is exceeded, a certain score is deducted based on the excess ratio.

[0064] Optionally, the scoring system sets a time threshold parameter for motor starting and speed regulation operations when scoring the actual operation assessment. Specifically, a reasonable time threshold is pre-set according to different motor types and assessment requirements. For example, for the starting and speed regulation operations of small three-phase asynchronous motors, the time threshold is set to 30 seconds. During the assessment process, when the trainee completes the motor starting and speed regulation operations, the system will record the operation completion time. If the operation completion time is within the preset time threshold, a corresponding time score reward will be given. The reward score can be determined according to the specific assessment rules, such as a 1-point reward for every 2 seconds completed in advance; if the time threshold is exceeded, a certain score will be deducted according to the excess ratio. The calculation method of the deduction score can be determined according to the ratio of the excess time to the threshold time. For example, if the excess time accounts for 40% of the threshold time, 5 points will be deducted.

[0065] Optionally, the scoring criteria of the scoring system are stored in an encrypted database, and the encrypted database uses an AES encryption algorithm to encrypt the scoring criteria data.

[0066] Optionally, the scoring criteria of the scoring system are stored in an encrypted database, and the scoring criteria data is encrypted using the AES encryption algorithm. In practical applications, the scoring criteria are first organized in a certain format to form a data file, and then the data file is encrypted using the AES encryption algorithm. During the encryption process, by setting a suitable key, it is ensured that only authorized personnel with the correct key can decrypt and access the encrypted data. This can effectively prevent the scoring criteria data from being tampered with and ensure the fairness and seriousness of the assessment.

[0067] Optionally, the scoring system assigns different score weights to the fault diagnosis and troubleshooting operations according to the difficulty of the fault point, gives higher score weights to fault points that are more difficult to detect and repair, and records the time it takes the trainee to find each fault point, and further adjusts the score for this part based on the length of time.

[0068] Optionally, different score weights can be assigned to the scoring of fault diagnosis and troubleshooting operations according to the difficulty of the fault point. For example, for a relatively simple line break fault, the score weight can be set to [W] points; for a component damage fault that is more difficult to detect and repair, the score weight can be set to [X] points, where [X]>[W]. During the assessment process, when the trainee performs fault diagnosis and troubleshooting operations, the system will record the time the trainee spent finding each fault point. The score of this part will be further adjusted according to the length of time. For example, if the trainee successfully finds and repairs a more difficult fault point in a short period of time, in addition to obtaining the score weight corresponding to the fault point, a certain amount of additional bonus points can be given according to the time completed in advance; conversely, if the trainee takes a long time to complete the fault diagnosis and troubleshooting operation, even if it is finally successfully repaired, a certain amount of points will be deducted according to the excess time.

[0069] Through the detailed description of the above specific implementation methods, technical personnel in this field can fully understand the specific structure, working principle and implementation methods of each part of the centralized electrician training and assessment device, so as to accurately manufacture and use the device for electrician training and assessment work.

[0070] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present application that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present application and do not limit the scope of protection of the patent of this application.

Claims

1. A centralized electrician training and assessment device, characterized in that: It includes an operating platform, which has a metal frame and an operating panel installed on the surface of the metal frame, the operating panel is made of insulating material, and the operating panel is provided with a power access area, a circuit element installation area and a test point area; A fault setting module is provided in the circuit with multiple fault points that can be quickly set and restored through switches hidden behind the operation panel or plug-in connections. The fault types of the fault points include line disconnection, short circuit, and component damage; A buffer structure is arranged at the bottom of the operating platform, and the buffer structure includes a plurality of evenly distributed shock absorbing springs and a rubber pad located at the bottom of the shock absorbing springs, one end of the shock absorbing spring is connected to the bottom of the operating platform, and the other end is connected to the rubber pad, so as to reduce the vibration impact on the device; The power connection device comprises a power connection socket and a power connection plug located in a power connection area, wherein the power connection socket is provided with a plurality of conductive sheets, the power connection plug is provided with pins matching the conductive sheets, the surface of the pins is plated with a metal nickel layer, the power connection plug and the socket are provided with a foolproof structure, and the foolproof structure comprises: A raised guide block is provided on one side of the pin of the power plug, and a guide groove matching the shape of the guide block is provided at the corresponding position of the power socket. The guide block can only be inserted along the guide groove to prevent the plug from being inserted in reverse. The pins of the power plug are asymmetrically distributed, with different pins of different functions having different lengths. The longest pin is the ground pin, which is fixed on one side of the plug. The corresponding socket depth of the power socket also matches the pin length. Color markings are set at the connection between the power plug and the socket. The part where the grounding pin is located is marked with yellow and green colors, and other functional pins have different color markings, corresponding to the corresponding color marking areas on the socket.

2. A centralized electrician training and assessment device according to claim 1, characterized in that: The circuit element installation area includes a plurality of element installation slots, the inner walls of the slots are provided with elastic conductive sheets, the elastic conductive sheets are made of phosphor bronze material and are silver-plated on the surface, and are used for reliable contact and conduction with the pins of the circuit elements. The shape of the slots is adapted to the appearance of different types of circuit elements, including direct-insert slots for installing resistors, capacitors, and inductors, and slots of specific shapes for installing switches, contactors, and relays.

3. A centralized electrician training and assessment device according to claim 1, characterized in that: A wiring channel is also provided below the circuit element installation area. A clip for fixing the wires is provided in the wiring channel. The clip is made of insulating plastic material and can be opened and closed by pressing. It is used to organize and fix circuit connections, keep the circuit tidy, and avoid interference between wires.

4. A centralized electrician training and assessment device according to claim 2, characterized in that: The elastic conductive sheet of the component installation slot is connected to a detection circuit, which can detect in real time whether the component is correctly installed. When the component is installed in place and in good contact with the conductive sheet, the detection circuit outputs a normal signal. When the component is installed incorrectly or in poor contact, the detection circuit outputs an abnormal signal to the scoring system.

5. The centralized electrician training and assessment device according to claim 1 is characterized in that: The test point area includes a plurality of test point jacks, each of which is connected to an independent signal transmission line. The signal transmission line uses a shielded wire, the outer layer of which is an insulating polyvinyl chloride material, and the inner metal shielding layer is a copper wire mesh.

6. A centralized electrician training and assessment device according to claim 5, characterized in that: The test point jack is inclined at a certain angle to the surface of the operation panel, and the angle range is between 10-30 degrees.

7. A centralized electrician training and assessment device according to claim 5, characterized in that: The test point area also includes a line collection device, which is used to store the signal transmission line led out from the test point jack. A rotatable winding shaft is provided inside the line collection device, and a wire groove for fixing the line is provided on the winding shaft.

8. The centralized electrician training and assessment device according to claim 4 is characterized in that: When grading the actual operation assessment, the scoring system sets a time threshold parameter for motor starting and speed regulation operations. If the operation completion time is within the preset time threshold, a corresponding time score reward is given. If the time threshold is exceeded, a certain score is deducted according to the excess ratio.

9. The centralized electrician training and assessment device according to claim 4 is characterized in that: The scoring criteria of the scoring system are stored in an encrypted database, and the encrypted database uses the AES encryption algorithm to encrypt the scoring criteria data.

10. The centralized electrician training and assessment device according to claim 4, characterized in that: The scoring system assigns different score weights to the fault diagnosis and troubleshooting operations according to the difficulty of the fault point, giving higher score weights to fault points that are more difficult to detect and repair, and records the time spent by the trainee to find each fault point, and further adjusts the score for this part according to the length of time.

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