Power station boiler fireman examination system based on hardware interaction

Abstract

The invention discloses a power station boiler fireman examination system based on hardware interaction, and mainly relates to the technical field of power station boiler operation simulation. Comprising a hardware interaction module which is provided with a boiler physical model which is scaled down in proportion and an electric cabinet which simulates the layout of a central control room, and collects a physical operation instruction through a PLC; the software simulation module is used for restoring operation interfaces and parameters of all systems of the boiler according to the ratio of 1: 1; the data processing module calculates and feeds back operation parameters in real time based on a built-in algorithm model; and the intelligent evaluation module is used for automatically comparing operation steps according to a standard process and carrying out multi-dimensional intelligent scoring. The system has the beneficial effects that high-simulation, full-scene and strong-interaction practical operation assessment is realized, real operation and fault handling are simulated in a safe environment through hardware linkage and software real-time feedback, and by means of an intelligent assessment system, assessment process precision and scoring automation are realized, so that the assessment efficiency is improved. And the efficiency, the safety and the fairness of fireman training and examination are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of power plant boiler operation simulation technology, specifically a power plant boiler operator assessment system based on hardware interaction. Background Technology

[0002] Boiler operators in power plants are core personnel responsible for ensuring the safe, stable, and economical operation of power plants. Their operational skills directly impact the safety of critical equipment and production efficiency. Therefore, establishing a scientific, rigorous, and efficient skills assessment system is crucial. Currently, the assessment methods for this position suffer from the following shortcomings: First, traditional practical assessments rely entirely on real boiler equipment, posing extremely high safety risks such as high temperature, high pressure, and flammability / explosion. Furthermore, the high costs of equipment startup and maintenance make large-scale, frequent assessments difficult. Second, theoretical written tests and practical operations are disconnected, failing to effectively assess the candidate's comprehensive ability to apply theoretical knowledge to complex operating conditions and emergency response. Third, the assessment process heavily relies on examiners' on-site observation and subjective judgment, resulting in inconsistent scoring standards, difficulty in tracking details, and low efficiency. Fourth, limitations imposed by real equipment and facilities make it difficult to comprehensively simulate various routine and extreme failure conditions that may occur during boiler operation, limiting the scope of the assessment.

[0003] To address these issues, simulation technology has been introduced into the training and assessment field. However, existing simulation examination systems often have significant drawbacks: most systems are purely software simulations, lacking hardware interaction devices consistent with real operation panels, resulting in distorted operating experiences and a disconnect between user experience and actual operation; the simulation models lack sufficient accuracy, making it difficult to realistically reflect the dynamic changes of unique related parameters for different boiler types (such as pulverized coal boilers, fluidized bed boilers, waste-to-energy boilers, and waste heat boilers); and the assessment functions are simple, mostly only able to judge the correctness of results, lacking automated and intelligent scoring capabilities for multiple dimensions such as the standardization of the operation process, the timing, and the accuracy of parameter control.

[0004] Therefore, there is an urgent need for a hardware-interactive power plant boiler operator assessment system to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a hardware-interactive power plant boiler operator assessment system. It achieves highly realistic, full-scenario, and highly interactive practical assessment while effectively improving the efficiency, safety, and fairness of boiler operator training and assessment.

[0006] To achieve the above objectives, the present invention employs the following technical solution: This invention provides a hardware-interactive power plant boiler operator assessment system, comprising: The hardware interaction module is used to receive and collect physical operation instructions from operators. The hardware interaction module includes: a scaled-down physical model of a power plant boiler unit, an electrical control box with a layout that mimics the control panel of a real power plant central control room, and a PLC programmable controller for collecting operation instruction data. The software simulation module is connected to the hardware interaction module and is used to restore the operation interface and parameter display of each core module of the boiler in a 1:1 ratio based on the actual power plant boiler control logic. The core modules include at least the main control system, the steam-water system, the combustion system and the flue gas system. The data processing module is communicatively connected to the PLC programmable controller and the software simulation module. It is used to receive the operation data collected by the PLC, calculate the operating parameters of the power plant boiler in real time based on the preset algorithm model, and dynamically feed back the calculation results to the corresponding interface of the software simulation module for display. The intelligent evaluation module, connected to the software simulation module and the data processing module, is used to compare and score the operator's operation process on the hardware interaction module and the software simulation module in real time according to the preset standard operation procedures and scoring rules, and generate an assessment report.

[0007] Preferably, in the hardware interaction module: The physical model of the power plant boiler unit proportionally reproduces the core components such as the furnace, steam drum, fan, and coal feeder. The electrical control box is equipped with physical buttons with indicator lights, rotary switches, and a touch screen to simulate real operation input; The PLC programmable controller is connected to the electrical control box and sensors through digital input modules and analog input modules, and is connected to actuators and indicator lights through digital output modules and analog output modules. It also interacts with the data processing module through an Ethernet communication module.

[0008] Preferably, the software simulation module is used for: It provides simulation scenarios for different types of power plant boilers, including but not limited to: pulverized coal boilers, circulating fluidized bed boilers, waste incinerators, and waste heat boilers; The simulation interface dynamically displays parameters that are linked to the operation commands. These parameters include, but are not limited to: air volume, steam drum water level, coal feed rate, main steam pressure, bed temperature, and furnace negative pressure. The system provides a teacher interface and a student interface. The teacher interface is used for exam management, test paper management, student management, and grade management. The student interface is used for students to log in, verify information, and answer questions.

[0009] Preferably, for different boiler types, the software simulation module has a pre-set corresponding equipment parameter library and fault scenario library. The fault scenario library covers typical faults that may occur in this type of boiler and is used to trigger and assess the candidate's emergency response capabilities during simulation operations.

[0010] Preferably, the algorithm model implemented in the data processing module includes a parameter calculation model, which is established based on fluid mechanics principles, material balance principles and equipment operating characteristics, and is used to calculate and update boiler operating parameters in real time according to operating instructions and the current system status.

[0011] Preferably, the parameter calculation model includes at least one of the following: air volume calculation model, steam drum water level calculation model, and coal feed rate calculation model; The air volume calculation model, based on the principles of fluid mechanics, is used to calculate and update the air volume parameters flowing into the furnace in real time according to the opening state of the fan damper, the furnace pressure difference, and the preset fan equipment characteristic coefficient. The steam drum water level calculation model, based on the principle of material balance, is used to dynamically calculate and update the real-time water level parameters in the steam drum through integral operations based on the influent flow rate of the water supply system, the evaporation rate of the boiler, and the cross-sectional area of ​​the steam drum. The coal feed rate calculation model is based on the principles of mechanical transmission and material conveying. It is used to calculate and update the fuel supply parameters entering the furnace based on the operating speed, transmission efficiency, coal bulk density, and spiral blade structure parameters of the coal feeder. In each calculation model, the parameters such as opening degree, pressure, flow rate, rotation speed, density, and area are all mapping variables of the actual operating state or physical characteristics of the corresponding physical equipment in the simulation system. Their values ​​are determined by the hardware operation signals collected by the PLC programmable controller or the logic state in the software simulation module.

[0012] Preferably, the intelligent evaluation module includes: The operation matching unit is used to compare the collected sequence of candidate operation steps with the preset standard operation step sequence and calculate the step similarity. The step similarity is based on the number of correct steps, the number of incorrect steps and the number of missing steps, and introduces the weight of incorrect steps and the weight of missing steps for calculation. The scoring calculation unit is used to calculate the total assessment score based on a weighted scoring model, which includes at least operational standardization score, parameter accuracy score, and emergency response speed score, and assigns weights to each score. The report generation unit is used to generate an assessment report based on the scoring results, which includes score details, error analysis, and skill gaps.

[0013] Preferred options also include: The database module is used to store candidate information, question bank, standard operating procedures, scoring rules, examination process data, and assessment results; The communication network module is used to realize data transmission between the PLC programmable controller, the data processing module, the software simulation module, and the database module.

[0014] Preferably, the system's workflow is as follows: Initialization phase: Based on the selected test questions, the initial state of the corresponding working condition is automatically configured in the software simulation module; Operation and Feedback Phase: The examinee performs physical operations on the hardware interaction module. The PLC collects the operation data and transmits it to the data processing module. The data processing module calculates the parameter changes and feeds them back to the software simulation module interface for real-time updates. Scoring and archiving stage: The intelligent assessment module records the operation trajectory in real time and compares it with the standard process. After the exam, it automatically calculates the total score, determines whether the candidate passes or fails, and stores all assessment data in the database.

[0015] Preferably, the control logic of the PLC programmable controller is implemented based on ladder diagram programming, including operation interlocking logic, fault alarm logic, and analog quantity adjustment logic, to ensure the safety of hardware operation and the accuracy of simulation feedback logic.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Achieving a unified approach of highly realistic operation and zero-risk assessment: The system of this invention integrates a scaled-down physical model and a control box with a layout mimicking a central control room, providing candidates with a near-realistic tactile and visual environment, effectively solving the problem of "disconnect between feel and action" in traditional pure software simulations. Simultaneously, the entire assessment process is completed in a virtual simulation environment, completely avoiding the safety risks of operating on real high-temperature and high-pressure equipment, and significantly reducing the expensive costs associated with using real equipment, making large-scale, routine, and repeatable assessments possible.

[0017] 2. Achieving a fusion of full-scenario coverage and precise full-process evaluation: The system of this invention can not only accurately simulate the conventional operation of various boiler types such as pulverized coal boilers, fluidized bed boilers, waste boilers, and waste heat boilers, but also comprehensively cover complex operating conditions such as start-up, shutdown, load changes, and emergency response to various typical faults (such as coal feeding interruption, leakage, over-temperature and over-pressure). Through the integrated intelligent evaluation module, the system can track and automatically score each step of the examinee's operation (timing and standardization), the control accuracy of key parameters, and the emergency response speed in real time, overcoming the shortcomings of traditional manual scoring, such as strong subjectivity, inconsistent standards, and inability to trace details, making the assessment results more objective, accurate, and traceable.

[0018] 3. Improved efficiency and intelligent management of training and assessment: The system of this invention supports multiple candidates taking online assessments simultaneously, and teachers can centrally monitor, manage, and schedule assessments, greatly improving the efficiency of assessment organization. Automatic question generation, automatic scoring, automatic generation of assessment results including detailed analysis reports, and historical data query and statistical functions realize intelligent and information-based management of the entire assessment process, significantly reducing the burden on examination staff and providing data support for targeted teaching improvements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the system structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the system operation process according to an embodiment of the present invention. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0021] Example: Figure 1 As shown, this system consists of a hardware interaction module, a software simulation module, a data processing module, an intelligent evaluation module, a database module, and a communication network module.

[0022] The hardware interaction module includes: Physical Model: A 1:10 scale custom physical model of the power plant boiler unit made of acrylic and aluminum alloy, measuring 3000×1500×2000mm (length×width×height), visually reproduces the external structure and relative positions of core components such as the furnace, steam drum, induced draft fan, forced draft fan, coal feeder, and air preheater. Electrical control box: A customized industrial-grade electrical control box with a panel size of 1200×800mm. It has 50 24V self-reset buttons with LED indicators (simulating pump and fan start / stop), 20 10KΩ potentiometer knobs (simulating valve opening adjustment), and a 7-inch capacitive touch screen (for displaying local operation prompts and confirmation information). The panel layout corresponds 1:1 to the DCS control panel of a certain 300MW unit. PLC Controller: The core controller is a Siemens S7-1500 series PLC. Its digital input module (DI) receives the switching signals from the control box buttons; the analog input module (AI) receives the 0-10V voltage signal (corresponding to 0-100% opening) from the control box knobs and the 4-20mA signal from the simulated furnace negative pressure sensor through a signal isolator; the digital output module (DO) controls the indicator lights on the control box and the miniature relays on the model (simulating valve switching); the analog output module (AO) outputs a 4-20mA signal to the simulated actuator feedback loop.

[0023] Software simulation module: Based on the Windows 10 operating system, and developed using the Qt framework and OpenGL graphics library, the simulation software's main interface replicates the DCS operation screen of the 300MW pulverized coal boiler that is paired with the hardware in a 1:1 ratio, including the boiler overview diagram, steam-water system diagram, flue gas system diagram, combustion system diagram, FSSS logic diagram, etc. The software includes four types of simulation scenarios: pulverized coal boilers, 350MW circulating fluidized bed boilers, 65t / h waste incinerators, and gas-steam combined cycle waste heat boilers. Each scenario corresponds to an independent equipment parameter library (such as rated pressure, temperature, flow rate, and thermal performance tables) and a fault scenario library. The fault library contains dozens of typical fault models such as "water-cooled wall leakage", "superheater overheating", "primary air fan tripping", "complete interruption of coal feed line", and "loss of plant power". The software provides both teacher and student clients. The teacher client runs on a separate instructor's computer and features functions such as importing student information (supports Excel), maintaining the question bank, generating exam papers (supports random question selection and manual paper generation), monitoring the exam process (real-time display of all student status, current question, and elapsed time), mandatory paper collection, and publishing and statistical analysis of results. The student client runs on the student's computer, providing a login verification interface and loading the corresponding simulation interface after successful verification.

[0024] Data processing module: Deployed on a high-performance industrial computer (CPU i7, memory 16GB), it interacts with the PLC's communication module and simulation software via Ethernet TCP / IP protocol; The core of this module is the parameter calculation engine, which incorporates multiple physics-based algorithm models to transform discrete hardware operation signals into continuous, dynamic boiler process parameters. The main models include: Air volume calculation model: used to calculate the flow rate of the exhaust / supply fan; when the examinee operates the "exhaust fan inlet damper opening" knob on the electrical control box, the PLC collects the opening signal. Combined with the furnace pressure calculated in the current software (Pa) and atmospheric pressure (Pa), through the model Real-time calculation of air volume ( ),in, The characteristic coefficient of the wind turbine is obtained by fitting the actual wind turbine performance curve. air density ( The calculation results are transmitted in real time and displayed on the air volume display point of the "Fog System Diagram" in the simulation software; Steam drum water level calculation model: used to simulate the dynamic changes in steam drum water level, the model is based on mass balance. ,in, for Steam drum water level at any time (mm). Initial water level (mm). for The total water supply flow rate (t / h) at any given time is calculated by combining the water supply pump speed and the opening degree of the water supply valve. for The main steam flow rate (t / h) at any given time is calculated using a model relating combustion rate and main steam pressure. The cross-sectional area of ​​the steam drum ( (The model is fixed according to the boiler model). It iterates and integrates in a period of 0.5 seconds to update the water level value in real time. Coal feed rate calculation model: Used to calculate the amount of coal entering the furnace. When a coal feeder is started, the PLC collects the "run" signal and combines it with the "speed setpoint" knob signal corresponding to that coal feeder. (Analog quantity, corresponding to 0-100% rated speed), through the model Calculate the coal feed rate M (kg / h), where, The mechanical transmission efficiency is taken as 0.97. To design the bulk density of coal (kg / m³). The cross-sectional area of ​​the screw feeder blades ( ), The blade pitch (m) is the total coal feed rate when multiple coal feeders are running. The total coal feed rate is the sum of the coal feed rates of each feeder. The initial states and boundary conditions required for all computational models (such as main steam pressure setpoints, coal calorific value, etc.) are provided by the currently loaded test scenario initialization.

[0025] Intelligent evaluation module: This module is integrated into the data processing server and runs synchronously with the simulation engine; Operation matching unit: Records the timestamp and operation object of each step of the candidate's operation (e.g., "press the 1A induced draft fan start button", "adjust the 1A induced draft fan inlet damper opening to 40%), forming an operation sequence. This sequence is compared with a pre-stored standard operation step sequence in the database (including step order, allowed operation objects, parameter target range, and maximum allowed time). A step similarity algorithm is used for scoring. Where S_step is the step-by-step score rate for this question. For the correct number of steps, This represents the number of incorrect steps (such as accidentally opening other valves). For the number of missing steps, The total number of standard steps. The weight of the erroneous step (taken as 1.2). As the weight of the omitted steps (taken as 1.5), if If the answer is yes, then this step will receive full marks; if the answer is no, then the step will receive full marks. Scoring is based on a linear ratio; Then this item will receive 0 points; Scoring Calculation Unit: The total score for each question is calculated using a weighted scoring model. ,in, The score for operational standardization (derived from the operational matching unit, weighted) ); The score is based on the accuracy of the parameters (whether key parameters such as main steam pressure, steam drum water level, and oxygen content remain stable within the range required by the test after the operation is completed, with a weighting). ); The score is based on emergency response speed (for fault handling questions, the shorter the time from the triggering of the fault to the commencement of correct operation, the higher the score, with a higher weight). The total score for the entire exam is the sum of the scores for each question. Report generation unit: After the exam, a PDF assessment report is automatically generated, which includes candidate information, test paper information, score details for each question (listing deduction points, such as "Step 2: Start the fan without opening the outlet baffle, deduct 3 points"), final total score, pass / fail conclusion, and knowledge point analysis tips for incorrect questions.

[0026] Database module and communication network: It uses a MySQL database, deployed on a data processing server, to store all candidate files, question banks (including question content, standard answers, and scoring details), test paper templates, and historical examination records (including detailed operation logs and parameter curves). The communication network is an industrial gigabit Ethernet, connecting the PLC, data processing server, teacher station, multiple student stations and database server, ensuring that the operation signal transmission delay is less than 50ms and the parameter refresh delay is less than 1 second. This example demonstrates the system workflow using the question "Cold Start-up of a 300MW Pulverized Coal Boiler—Preparations Before Boiler Ignition" as a case study. 1. Initialization Phase: The examiner selects the "Preparation Before Boiler Ignition" question on the teacher's end and selects three candidates to start the exam. The system sends instructions to each student's end through the communication network. The student's simulation software loads the initial working condition of "300MW pulverized coal boiler cold start": all equipment is shut down, all valves are closed, the steam drum water level is low, and the flue gas system is isolated. 2. Operation and Feedback Phase: Candidate A operates at their workstation. First, according to the procedure, they press the "Furnace Negative Pressure Gauge Activation" button (DI signal) on the electrical control box, and then rotate the "Induced Draft Fan Inlet Baffle" knob to 10% opening (AI signal). After the PLC collects these signals, it sends them to the data processing module via Ethernet. The air volume calculation model of the data processing module calculates a small ventilation volume based on the 10% opening and the current furnace pressure (initially atmospheric pressure), and sends this value back to the simulation software on candidate A's end. On the simulation software interface, the "Furnace Negative Pressure" display value slowly decreases from 0, the "Induced Draft Fan Inlet Baffle Opening" icon changes to 10%, and the "Air Volume" display value is updated. Next, candidate A needs to click the mouse to start the "Flame Detector Cooling Fan" on the simulation software interface. The signal flow and parameter feedback of the entire operation process are real-time and continuous.

[0027] 3. Scoring and Archiving Stage: The intelligent assessment module runs synchronously in the background. It compares Candidate A's operation sequence of "first opening the damper, then starting the fan" with the standard sequence and determines that it is correct. Simultaneously, it monitors the "furnace negative pressure" parameter to determine whether it has been established and stabilized between -50Pa and -100Pa after the operation. When Candidate A completes all steps and clicks "This question completed," the system immediately calculates the score for that question based on the completeness of the operation steps, the quality of parameter control, and the total time consumed. After all exams are completed, the system automatically summarizes the scores for each question, generates a total score and a detailed assessment report, and packages all operation records, parameter curves, and scoring results into the database. Examiners can query, print, or export reports and data from any historical exam on the teacher's end.

[0028] The above is a detailed description of the preferred embodiments of the present invention, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A hardware-interactive power plant boiler operator assessment system, characterized in that, include: The hardware interaction module is used to receive and collect physical operation instructions from operators. The hardware interaction module includes: a scaled-down physical model of a power plant boiler unit, an electrical control box with a layout that mimics the control panel of a real power plant central control room, and a PLC programmable controller for collecting operation instruction data. The software simulation module is connected to the hardware interaction module and is used to restore the operation interface and parameter display of each core module of the boiler in a 1:1 ratio based on the actual power plant boiler control logic. The core modules include at least the main control system, the steam-water system, the combustion system and the flue gas system. The data processing module is communicatively connected to the PLC programmable controller and the software simulation module. It is used to receive the operation data collected by the PLC, calculate the operating parameters of the power plant boiler in real time based on the preset algorithm model, and dynamically feed back the calculation results to the corresponding interface of the software simulation module for display. The intelligent evaluation module, connected to the software simulation module and the data processing module, is used to compare and score the operator's operation process on the hardware interaction module and the software simulation module in real time according to the preset standard operation procedures and scoring rules, and generate an assessment report.

2. The power plant boiler operator assessment system based on hardware interaction according to claim 1, characterized in that, In the hardware interaction module: The physical model of the power plant boiler unit proportionally reproduces the core components such as the furnace, steam drum, fan, and coal feeder. The electrical control box is equipped with physical buttons with indicator lights, rotary switches, and a touch screen to simulate real operation input; The PLC programmable controller is connected to the electrical control box and sensors through digital input modules and analog input modules, and is connected to actuators and indicator lights through digital output modules and analog output modules. It also interacts with the data processing module through an Ethernet communication module.

3. The power plant boiler operator assessment system based on hardware interaction according to claim 1, characterized in that, The software simulation module is used for: It provides simulation scenarios for different types of power plant boilers, including but not limited to: pulverized coal boilers, circulating fluidized bed boilers, waste incinerators, and waste heat boilers; The simulation interface dynamically displays parameters that are linked to the operation commands. These parameters include, but are not limited to: air volume, steam drum water level, coal feed rate, main steam pressure, bed temperature, and furnace negative pressure. The system provides a teacher interface and a student interface. The teacher interface is used for exam management, test paper management, student management, and grade management. The student interface is used for students to log in, verify information, and answer questions.

4. The power plant boiler operator assessment system based on hardware interaction according to claim 3, characterized in that, For different boiler types, the software simulation module has a pre-set corresponding equipment parameter library and fault scenario library. The fault scenario library covers typical faults that may occur in this type of boiler and is used to trigger and assess the candidate's emergency response capabilities during simulation operations.

5. The power plant boiler operator assessment system based on hardware interaction according to claim 1, characterized in that, The algorithm model implemented in the data processing module includes a parameter calculation model, which is established based on fluid mechanics principles, material balance principles, and equipment operating characteristics. It is used to calculate and update boiler operating parameters in real time according to operating instructions and the current system status.

6. The power plant boiler operator assessment system based on hardware interaction according to claim 5, characterized in that, The parameter calculation model includes at least one of the following: air volume calculation model, steam drum water level calculation model, and coal feed calculation model. The air volume calculation model, based on the principles of fluid mechanics, is used to calculate and update the air volume parameters flowing into the furnace in real time according to the opening state of the fan damper, the furnace pressure difference, and the preset fan equipment characteristic coefficient. The steam drum water level calculation model, based on the principle of material balance, is used to dynamically calculate and update the real-time water level parameters in the steam drum through integral operations based on the influent flow rate of the water supply system, the evaporation rate of the boiler, and the cross-sectional area of ​​the steam drum. The coal feed rate calculation model is based on the principles of mechanical transmission and material conveying. It is used to calculate and update the fuel supply parameters entering the furnace based on the operating speed, transmission efficiency, coal bulk density, and spiral blade structure parameters of the coal feeder. In each calculation model, the parameters such as opening degree, pressure, flow rate, rotation speed, density, and area are all mapping variables of the actual operating state or physical characteristics of the corresponding physical equipment in the simulation system. Their values ​​are determined by the hardware operation signals collected by the PLC programmable controller or the logic state in the software simulation module.

7. The power plant boiler operator assessment system based on hardware interaction according to claim 1, characterized in that, The intelligent evaluation module includes: The operation matching unit is used to compare the collected sequence of candidate operation steps with the preset standard operation step sequence and calculate the step similarity. The step similarity is based on the number of correct steps, the number of incorrect steps and the number of missing steps, and introduces the weight of incorrect steps and the weight of missing steps for calculation. The scoring calculation unit is used to calculate the total assessment score based on a weighted scoring model, which includes at least operational standardization score, parameter accuracy score, and emergency response speed score, and assigns weights to each score. The report generation unit is used to generate an assessment report based on the scoring results, which includes score details, error analysis, and skill gaps.

8. A hardware-interactive power plant boiler operator assessment system according to claim 1, characterized in that, Also includes: The database module is used to store candidate information, question bank, standard operating procedures, scoring rules, examination process data, and assessment results; The communication network module is used to realize data transmission between the PLC programmable controller, the data processing module, the software simulation module, and the database module.

9. A hardware-interactive power plant boiler operator assessment system according to claim 1, characterized in that, The system's workflow is as follows: Initialization phase: Based on the selected test questions, the initial state of the corresponding working condition is automatically configured in the software simulation module; Operation and Feedback Phase: The examinee performs physical operations on the hardware interaction module. The PLC collects the operation data and transmits it to the data processing module. The data processing module calculates the parameter changes and feeds them back to the software simulation module interface for real-time updates. Scoring and archiving stage: The intelligent assessment module records the operation trajectory in real time and compares it with the standard process. After the exam, it automatically calculates the total score, determines whether the candidate passes or fails, and stores all assessment data in the database.

10. A hardware-interactive power plant boiler operator assessment system according to claim 1, characterized in that, The control logic of the PLC programmable controller is implemented based on ladder diagram programming, including operation interlocking logic, fault alarm logic, and analog quantity adjustment logic, to ensure the safety of hardware operation and the accuracy of simulation feedback logic.

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