Teaching practical training sand table system applied to industrial scene, control method, equipment and medium

Abstract

The invention provides a teaching practical training sand table system applied to an industrial scene, a control method, equipment and a medium, and belongs to the technical field of industrial scene practical training, the system is characterized in that a sand table base is integrated with a central control unit, and the surface of the sand table base is provided with a modular slot; the replaceable scene module is connected with the sand table base through the modular slot; the universal equipment module comprises a cross-scene multiplexing sensor group and an execution mechanism, and the universal equipment module is detachably connected to the sand table base or the currently activated replaceable scene module; the interaction terminal comprises a teacher terminal and a student operation terminal; the data middle table executes the following steps of: reading a scene type of the identification storage chip, and loading a control program and a monitoring interface of a corresponding scene; establishing a uniform data dictionary of the current scene type, mapping physical addresses of all devices of the current scene type, and collecting sensor group data in a standardized manner. According to the invention, modular design of the sand table is realized, scene switching is rapid, and teaching and practical training efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of industrial scene practical training, and particularly relates to a teaching practical sand table system applied to an industrial scene, a control method, equipment and a medium. BACKGROUND

[0002] In the teaching of industrial internet and intelligent manufacturing, a practical sand table is an important teaching aid for training students' equipment operation and system integration capability. However, the target mainstream practical sand table has the following problems: On the one hand, the scene is fixed, the traditional sand table adopts a fixed physical structure, and can only simulate a single industrial scene. When switching to a new scene, the sand table hardware needs to be completely reconfigured, which takes a long time and seriously restricts the diversity of teaching content. On the other hand, the expansion cost is high, and the addition of a new scene requires the redesign of the sand table structure and electrical system, with low hardware reuse rate, resulting in rising equipment update costs. In addition, the interaction is fragmented, students cannot operate the equipment of different scenes through a unified platform, and data cannot be linked across scenes, which weakens the systematicness and coherence of the practical training. Moreover, the teaching adaptability is poor, and the scene complexity cannot be dynamically adjusted according to the course difficulty, making it difficult to meet the hierarchical teaching needs from basic operation to advanced system integration. In the prior art, although some modular sand tables attempt to achieve scene expansion through interface standardization, they generally have problems such as insufficient interface compatibility, cumbersome switching process, and lack of systematic data management. Therefore, there is an urgent need for a new practical sand table that has flexibility, reusability and teaching adaptability to solve these problems. SUMMARY

[0003] In a first aspect, the embodiments of the present application provide a teaching practical sand table system applied to an industrial scene, which includes a sand table base, replaceable scene modules, general equipment modules, an interactive terminal and a data platform. The sand table base is integrated with a central control unit, and the surface of the sand table base is provided with a modular slot for providing a physical mounting surface and an electrical connection channel; The replaceable scene modules are connected to the sand table base through the modular slot, and the replaceable scene modules are internally provided with scene-specific hardware, a local controller and an identification storage chip; the identification storage chip stores the current scene type and a device list; The general equipment modules include a cross-scene reusable sensor group and an actuator, and the general equipment modules are detachably connected to the sand table base or the currently activated replaceable scene module; The interactive terminal includes a teacher terminal and a student operation terminal, both of which are connected to the central control unit; The data platform is integrated in the central control unit and performs: reading the scene type of the identification storage chip, loading the control program and monitoring interface of the corresponding scene; Establish a unified data dictionary for the current scenario type, map the physical addresses of all devices in the current scenario type, and standardize the collection of sensor group data.

[0004] Furthermore, the sand table base also integrates a power management module and a network communication module, both of which are connected to the central control unit; The modular slot includes a slot body, mechanical positioning latches, electrical connection terminals, and a hot-swap protection circuit. Symmetrical mechanical positioning latches are set on both sides of the slot body along its longitudinal direction; The electrical connection terminals are in the form of metal contacts and are located in the central area inside the slot body; The hot-swap protection circuit is used to detect a sudden change in current of the replaceable scene module or general equipment module, determine that it is in a hot-swap state, cut off the power supply of the power management module to the sand table base, and restore the power supply of the power management module to the sand table base after the new replaceable scene module or general equipment module is reset.

[0005] Furthermore, the data dictionary includes a device address mapping table, data acquisition parameters, and alarm thresholds; The device address mapping table is associated with the physical addresses of scene-specific hardware and general device modules; The data acquisition parameters are the sampling frequency set according to the scene type; Alarm thresholds are a set of thresholds corresponding to sensor group data associated with scene type.

[0006] Furthermore, the central control unit performs protocol adaptation: Read the scene type from the identification storage chip and identify the native protocol used for that scene type. ; Transform the native protocol using a protocol conversion function. Convert to a platform-compatible protocol; The platform compatibility protocol generates instructions that are output to the local controller of the replaceable scene module.

[0007] Furthermore, the teacher terminal is used to generate course configuration instructions, control fault injection, and monitor student operations; The specific steps for generating the course configuration instructions are as follows: Select the scenario type, generate the scenario activation command, and send it to the data platform; Configure course difficulty parameters ; The fault injection control is specifically as follows: Set the set of fault types ; Based on the fault type set through the data platform Modify the device input signals in the current scene; The specific details of the student operation monitoring are as follows: Receiving the student operation sequence forwarded by the data middle platform

[0008] in, It's the start time. It is the end time. It is the device ID used in the scene; Real-time marking of abnormal operation events; The student operating terminal executes device control responses and fault handling feedback; The specific device control response is as follows: Analyze the control programs issued by the data platform and generate an HMI visualization interface; Receive touch commands from students, convert them into Modbus control frames, and send them to the local controller; The specific fault handling feedback is as follows: When a fault is detected, the alarm interface will not be activated and the student's debugging actions will be recorded. The results of the fault repair are fed back to the data platform.

[0009] Secondly, this application also provides a method for controlling a teaching and training sand table in an industrial setting. Based on the teaching and training sand table system for industrial settings described in the first aspect above, the specific steps are as follows: S1. Perform scenario initialization: The data platform reads the scene type of the identification storage chip and loads the corresponding control program and monitoring interface; Establish a unified data dictionary for the current scenario type and map it to device physical addresses; S2. Connect the general equipment module to the currently activated replaceable scene module or sand table base, and collect sensor group data in a standardized manner through the data platform; S3. Configure teaching tasks: Teacher terminal configuration of practical training tasks

[0010] in, This is a parameter indicating the difficulty of the course. It is a set of fault types; The data platform is based on course difficulty parameters. Configure device control permissions; S4. Perform fault injection and response: Data platform set by fault type Modify the device input signal: ; Wherein, is a fault input signal, is a normal input signal, is a sensor offset; The student operation terminal detects the fault input signal , triggers the alarm interface and records the debugging action; S5. Perform operation and verification: The student operation terminal receives the touch instruction and converts it into a Modbus control frame sent to the local controller; The local controller performs double verification of PLC logic and operation timeout on the Modbus control frame; S6. The data center analyzes the student operation trajectory and outputs the ability assessment report.

[0011] Further, steps S3-S5 complete layered cooperation, and the specific steps are as follows: SS1. The teacher terminal sends the practical training task to the data center; SS2. The data center injects a set of fault types and distributes the control program to the student operation terminal; SS3. The student operation terminal displays the device control interface and task target; SS4. When the student operates, the data center forwards the operation sequence to the teacher terminal in real time; SS5. The student terminal submits the fault repair result to the data center; SS6. When the task is completed, the data center pushes the completion notification and preliminary score to the teacher terminal .

[0012] Further, step S6 has the following specific steps: S61. Get the practical training task from the teacher terminal, and collect student operation data from the student operation terminal; Wherein, is the operation sequence, is the fault repair result; S62. Perform evaluation index calculation; the evaluation index includes fault repair rate , operation efficiency score , and process compliance degree ;

[0013] Wherein, is the number of successful repairs, is the number of injected faults;

[0014] wherein, is a standard operation duration, is an actual operation duration;

[0015] wherein, is a non-compliant operation step, is a total step; S63. Calculate a comprehensive score according to the evaluation index ;

[0016] S64. Push a capability evaluation report containing weak links, historical comparison and recommended courses to a teacher terminal; S65. Send a comprehensive score and optimization suggestions to a student operation terminal.

[0017] In a third aspect, the embodiments of the present application further provide an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the teaching practical sand table control method applied to an industrial scene as described in the first aspect when executing the program.

[0018] In a fourth aspect, the embodiments of the present application further provide a storage medium having a computer program stored thereon, wherein the computer program is executable by a processor to implement the steps of the teaching practical sand table control method applied to an industrial scene as described in the first aspect.

[0019] From the above technical solutions, the present application has the following advantages: The teaching practical sand table system applied to an industrial scene, the control method, the device and the medium provided by the present application break the traditional sand table scene fixation through modular design, without the need for complex hardware reconstruction, and can quickly switch industrial scenes, greatly enriching teaching content and bringing diversified practical experience to students. At the same time, the standardized interface and electrical connection design, combined with the hot plug protection circuit, not only improve the hardware reuse rate and reduce the cost of equipment expansion, but also ensure stable operation of the system and reduce the potential fault risk caused by hardware replacement. The introduction of the data center realizes cross-scene data fusion, device state monitoring and fault simulation, etc., provides strong support for teaching evaluation, and helps precise teaching. In addition, the collaborative interaction design of the teacher terminal and the student terminal meets the teaching needs of different levels, from device operation to system integration, and comprehensively improves the professional skills of students. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present application, the drawings required to be used in the description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0021] Figure 1 A schematic diagram of the teaching practical sand table system applied to an industrial scene of the present application.

[0022] Figure 2 A flowchart of the teaching practical sand table control method applied to an industrial scene of the present application. DETAILED DESCRIPTION

[0023] In the following detailed description of the teaching practical sand table control system applied to an industrial scene, various embodiments of the present disclosure will be described more fully. The present disclosure can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit various embodiments of the present disclosure to the specific embodiments disclosed herein, but the present disclosure should be understood to cover all adjustments, equivalents and / or alternatives falling within the spirit and scope of various embodiments of the present disclosure.

[0024] Exemplarily, in the field of industrial internet and intelligent manufacturing teaching, the practical training sand table is playing an indispensable role as a key teaching tool to improve the students' equipment operation skills and system integration capabilities. However, the current mainstream practical training sand table exposes a series of problems to be solved. On the one hand, the scene fixation problem is prominent. The traditional sand table can only simulate a single industrial scene due to the use of fixed physical architecture. Once it needs to switch to a new scene, the sand table hardware has to be completely restructured, which is a time-consuming process and greatly limits the richness and diversity of teaching content. On the other hand, the expansion cost is high. Each new scene faces the dilemma of redesigning the sand table structure and electrical system, and the low reusability of hardware directly leads to a substantial increase in cost when equipment is updated. In addition, the interaction fragmentation problem is also serious. When students operate equipment in different scenes, they cannot rely on a unified platform, and data cannot be linked and integrated across scenes, which undoubtedly weakens the systematization and coherence of practical training teaching. Furthermore, there is a clear deficiency in teaching adaptability. The existing sand table cannot dynamically adjust the complexity of the scene according to the difficulty gradient of the course, thus failing to effectively meet the teaching needs of different levels from basic equipment operation to advanced system integration. Although some modular sand tables have tried to expand the scene by standardizing the interface, in actual application, problems such as poor interface compatibility, cumbersome scene switching process, and lack of systematic data management still exist. Therefore, the market urgently needs a new type of practical training sand table that can integrate flexibility, reusability, and teaching adaptability to break out of the current dilemma and promote the teaching of industrial internet and intelligent manufacturing to a new height.

[0025] To solve the above problems, the embodiment provides a teaching practical training sand table system applied to an industrial scene, which realizes modular design of the sand table, rapid scene switching, low reuse cost of replaceable scene modules, accurate data management, and significant teaching effect; and realizes flexible and variable teaching scenes and accurate evaluation driven by data through an interactive terminal.

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figure 1 Fig. 1 is a schematic diagram of a teaching practical training sand table system applied to an industrial scene in an embodiment, which comprises a sand table base, replaceable scene modules, general equipment modules, an interactive terminal, and a data center. The sand table base integrates a central control unit, and the surface of the sand table base is provided with modular slots to provide physical mounting surfaces and electrical connection channels; The replaceable scene module is connected to the sand table base via a modular slot, and the replaceable scene module has built-in scene-specific hardware, a local controller, and an identification storage chip; the identification storage chip stores the current scene type and device list; The general-purpose equipment module includes sensor groups and actuators that can be reused across different scenarios, and the general-purpose equipment module can be detachably connected to the sand table base or the currently activated replaceable scenario module; The interactive terminals include teacher terminals and student operation terminals, both of which are connected to the central control unit; The data platform is integrated into the central control unit and executes: Read the scene type of the identification storage chip and load the corresponding scene's control program and monitoring interface; Establish a unified data dictionary for the current scenario type, map the physical addresses of all devices in the current scenario type, and standardize the collection of sensor group data; It should be noted that the sand table base integrates a central control unit, which becomes the center of the entire teaching and training sand table system. It coordinates the operation of each module, ensures that all parts of the system work together, and realizes the orderly execution of complex teaching tasks. The modular slot design on the surface provides a standardized physical mounting surface and electrical connection channel for replaceable scene modules and general equipment modules, which makes the sand table have strong expansion capabilities and facilitates flexible configuration of modules according to different teaching needs. This is the key to realizing the diversification of teaching content and rapid scene switching. The interchangeable scenario modules, with built-in scenario-specific hardware and local controllers, can independently encapsulate different industrial scenarios such as cleanrooms, smart warehouses, and flexible production lines. By changing modules, trainees can quickly enter different industrial environments for practice, enhancing their understanding and operational capabilities of various industrial scenarios and enriching the teaching content. The identification storage chip stores the current scenario type and equipment list, allowing the data platform to quickly identify the scenario and load the corresponding control program and monitoring interface. This intelligent configuration method saves teaching preparation time, improves teaching efficiency, and ensures the accuracy and reliability of scenario switching. The general-purpose equipment module includes sensor groups and actuators that can be reused across different scenarios. It can be flexibly deployed and used among different replaceable scenario modules, which greatly improves the hardware reuse rate and reduces the cost of equipment procurement and upgrades. The detachable connection design makes it easy for students to quickly assemble and disassemble the equipment according to the needs of different teaching tasks, enhances students' understanding of the versatility of industrial equipment, and improves students' flexibility in adapting to different industrial production tasks. The teacher terminal and the student operation terminal of the interactive terminal are connected with the central control unit, and convenient teaching interaction between teachers and students is built; the teachers can timely issue teaching instructions, monitor student operation, and evaluate student performance, and the students can receive tasks, control equipment, and feed back results, so that real-time interaction of teaching information is realized, and teaching interactivity and participation are improved; the student operation terminal generates an HMI visual interface according to different scenes, and provides intuitive and friendly operation experience for the students; meanwhile, the terminal records student operation data, provides a basis for subsequent personalized teaching evaluation, and facilitates targeted improvement of individual skill level of the students; The data center is integrated in the central control unit, is responsible for reading identification storage chip information, loading control programs and monitoring interfaces corresponding to scenes, establishing a unified data dictionary, mapping device physical addresses and standardizing sensor group data collection, realizes integration and standardized management of various data in the teaching process, and provides accurate data support for teaching decision, fault diagnosis, and ability evaluation, and improves rationality and effectiveness of teaching management; through data fusion, device state monitoring and fault simulation functions, the teachers are assisted to carry out intelligent teaching. For example, according to the data dictionary, the operation trajectory of the students is analyzed, an ability evaluation report is output, the teachers are helped to accurately locate weak links of the students, and the teaching scheme is optimized; meanwhile, the running state of the equipment is monitored in real time, faults are warned in advance, and teaching activities are ensured to proceed smoothly.

[0028] The modular design and intelligent data management of the embodiment realize rapid switching of industrial scenes; the efficient reuse of hardware is combined with hot plug protection, the running stability is ensured while the equipment cost is reduced; the collaborative interaction of the teacher terminal and the student terminal is realized, the hierarchical teaching needs are met, and the students are accurately cultivated to have overall ability from basic operation to system integration; the data center deeply analyzes the operation trajectory, and provides support for personalized teaching evaluation.

[0029] Further, as a refinement and expansion of the specific implementation manner of the above embodiment, in order to completely describe the specific implementation process in the embodiment, another teaching training sand table system applied to an industrial scene is provided, and the system comprises a sand table base, replaceable scene modules, universal equipment modules, interactive terminals, and a data center; The sand table base is integrated with a central control unit, and the surface of the sand table base is provided with a modular slot for providing a physical mounting surface and an electrical connection channel; The replaceable scene modules are connected with the sand table base through the modular slot, and the replaceable scene modules are internally provided with scene-specific hardware, a local controller, and an identification storage chip; the identification storage chip stores a current scene type and a device list; The universal equipment modules comprise a sensor group and an actuator that are reused across scenes, and the universal equipment modules are detachably connected to the sand table base or the currently activated replaceable scene module; The interactive terminals include teacher terminals and student operation terminals, both of which are connected to the central control unit; The data platform is integrated into the central control unit and executes: Read the scene type of the identification storage chip and load the corresponding scene's control program and monitoring interface; Establish a unified data dictionary for the current scenario type, map the physical addresses of all devices in the current scenario type, and standardize the collection of sensor group data; The sand table base also integrates a power management module and a network communication module, both of which are connected to the central control unit; The modular slot includes a slot body, mechanical positioning latches, electrical connection terminals, and a hot-swap protection circuit. Symmetrical mechanical positioning latches are set on both sides of the slot body along its longitudinal direction; The electrical connection terminals are in the form of metal contacts and are located in the central area inside the slot body; The hot-swap protection circuit is used to detect a sudden change in current of the replaceable scene module or general equipment module, determine that it is in a hot-swap state, cut off the power supply of the power management module to the sand table base, and restore the power supply of the power management module to the sand table base after the new replaceable scene module or general equipment module is reset. The data dictionary contains a device address mapping table, data acquisition parameters, and alarm thresholds. The device address mapping table is associated with the physical addresses of scene-specific hardware and general device modules; The data acquisition parameters are the sampling frequency set according to the scene type; The alarm threshold is a set of thresholds corresponding to sensor group data associated with the scene type; The central control unit performs protocol adaptation: Read the scene type from the identification storage chip and identify the native protocol used for that scene type. ; For example, native protocols The Modbus RTU / Profinet protocol is used. Transform the native protocol using a protocol conversion function. Convert to a platform-compatible protocol; The platform-compatible protocol generates instructions and outputs them to the local controller of the replaceable scene module; The teacher terminal is used to generate course configuration instructions, control fault injection, and monitor student operations. The specific steps for generating the course configuration instructions are as follows: Select the scenario type, generate the scenario activation command, and send it to the data platform; Configure course difficulty parameters ; For example, The basic L=1 only opens basic device control, while the advanced L=3 opens the edge computing gateway; The fault injection control is specifically as follows: Set the set of fault types ; For example, Corresponding sensor offset / motor overload rate / communication delay; Based on the fault type set through the data platform Modify the device input signals in the current scene; For example, ; It is the sensor offset; The specific details of the student operation monitoring are as follows: Receiving the student operation sequence forwarded by the data middle platform

[0030] in, It's the start time. It is the end time. It is the device ID used in the scene; Real-time flagging of abnormal operation events (such as failure to start the device according to standard procedures); The student operating terminal executes device control responses and fault handling feedback; The specific device control response is as follows: Analyze the control programs issued by the data platform and generate an HMI visualization interface; Receive touch commands from students, convert them into Modbus control frames, and send them to the local controller; The specific fault handling feedback is as follows: When a fault is detected At that time, unless an alarm interface is displayed and the student's debugging actions are recorded; Fault repair results Feedback is sent to the data platform; The data platform supports multi-scenario collaborative operation, specifically executing: Parallel activation of scenarios: The sand table base has multiple modular slots that can be connected to different replaceable scenario modules (such as flexible production line module + smart warehouse module). Each replaceable scene module's local controller operates independently, and data communication is achieved through a data platform; Cross-scenario data triggering: Production order data for flexible production line modules Real-time input data platform; Data Platform Analysis Material requirements ; Rule-driven linkage: like (like If the number of items is 100, an AGV scheduling instruction is sent to the smart warehouse module. The AGV model in the smart warehousing module performs material handling and records status data. (Position / Speed / Load) feedback is sent to the associated student's operating terminal.

[0031] like Figure 2 As shown, the following are embodiments of the teaching and training sand table control method for industrial scenarios provided by this disclosure. This method and the teaching and training sand table control system for industrial scenarios in the above embodiments belong to the same inventive concept. For details not described in detail in the embodiments of the teaching and training sand table control method for industrial scenarios, please refer to the embodiments of the teaching and training sand table control system for industrial scenarios described above.

[0032] The method includes the following steps: S1. Perform scenario initialization: The data platform reads the scene type of the identification storage chip and loads the corresponding control program and monitoring interface; Establish a unified data dictionary for the current scenario type and map it to device physical addresses; It should be noted that the data platform reads the scenario type of the identification storage chip and quickly loads the corresponding control program and monitoring interface, rapidly building a suitable software operating environment for teaching activities; through the rapid initialization process, it saves teaching preparation time, enabling teachers and students to enter the training state as soon as possible and improving teaching efficiency; it establishes a unified data dictionary for the current scenario type, accurately mapping the physical address of the device, laying the foundation for subsequent device control and data acquisition; the accurate construction of the data dictionary ensures the accuracy and reliability of the collected data, providing data assurance for teaching quality; S2. Connect the general equipment module to the currently activated replaceable scene module or sand table base, and collect sensor group data in a standardized manner through the data platform; It should be noted that connecting the general-purpose device module to the currently activated replaceable scene module or sand table base enables rapid device access and integration. This allows students to flexibly allocate equipment according to teaching needs, develop their equipment installation and debugging skills, and improve teaching flexibility. The data platform standardizes the collection of sensor group data, obtains real-time equipment operating status information, and provides dynamic data support for the teaching process. Teachers can adjust teaching strategies based on real-time data, and students can also optimize their operations based on data feedback, enhancing teaching interactivity and effectiveness. S3. Configure teaching tasks: Teacher terminal configuration of practical training tasks

[0033] in, This is a parameter indicating the difficulty of the course. It is a set of fault types; The data platform is based on course difficulty parameters. Configure device control permissions; It should be noted that the teacher terminal is configured with practical training tasks. Based on the course objectives, the teacher selects the scenario type, sets the course difficulty parameters, and defines the fault type set to achieve personalized teaching task customization. This meets the learning needs of students at different levels, making teaching activities more targeted and improving teaching effectiveness. The data platform sets device control permissions according to the course difficulty parameters to achieve dynamic permission management in the teaching process. By limiting the scope of student operations, it guides students to gradually master skills, avoids equipment damage due to operational errors, ensures teaching safety, and conforms to the concept of differentiated instruction. S4. Perform fault injection and response: Data platform set by fault type Modify the device input signal: ; in, It is a fault input signal. It is a normal input signal. It is the sensor offset; Student operating terminal fault input signal detection This triggers the alarm interface and records the debugging actions. It should be noted that the data platform modifies the equipment input signals according to the fault type set, simulating real industrial fault scenarios, training trainees' fault diagnosis and handling capabilities, improving their ability to solve practical problems, and enhancing the practicality of teaching; after the trainees' operating terminals detect fault input signals, they trigger the alarm interface and record the debugging actions, cultivating trainees' awareness and ability to proactively respond to faults; enabling trainees to accumulate experience in simulated fault environments and improve their emergency response capabilities. S5. Execution and Verification: The student's terminal receives touch commands, converts them into Modbus control frames, and sends them to the local controller. The local controller performs dual verification of PLC logic and operation timeout on Modbus control frames. It should be noted that the student terminal receives touch commands, converts them into Modbus control frames, and sends them to the local controller, allowing students to practice their equipment operation and control skills. The local controller performs dual verification of PLC logic and operation timeout on the Modbus control frames to ensure the accuracy and timeliness of the student's operation commands. This dual verification mechanism prevents abnormal equipment operation due to erroneous commands, ensuring the safety and stability of the teaching process. S6. The data platform analyzes the trainees' operation trajectory and outputs a capability assessment report; It should be noted that the data platform analyzes students' operation trajectories and combines practical training tasks with student operation data to evaluate students' abilities from multiple dimensions such as fault repair rate, operation efficiency score, and process compliance, providing a comprehensive perspective for teaching evaluation; it enables precise identification of students' strengths and weaknesses, providing a strong basis for subsequent teaching improvement; it pushes ability assessment reports containing weak points, historical comparisons, and suggested courses to teachers' terminals, and sends comprehensive scores and optimization suggestions to students' terminals, ensuring timely and effective teaching feedback.

[0034] This embodiment implements a modular sandbox design, enabling rapid scene switching and improving teaching and training efficiency; replaceable scene modules reduce costs, ensure precise data management, and significantly enhance teaching effectiveness; through an interactive terminal, it achieves flexible and varied teaching scenarios and data-driven accurate evaluation.

[0035] Furthermore, as a refinement and extension of the specific implementation methods of the above embodiments, in order to fully illustrate the specific implementation process of this embodiment, another teaching and training sandbox method applied to industrial scenarios is provided, which includes the following steps: S1. Perform scenario initialization: The data platform reads the scene type of the identification storage chip and loads the corresponding control program and monitoring interface; Establish a unified data dictionary for the current scenario type and map it to device physical addresses; S2. Connect the general device module to the currently active replaceable scene module or sand table base, and collect sensor group data in a standardized manner through the data platform; S3. Configure teaching tasks: Teacher terminal configuration of practical training tasks

[0036] in, This is a parameter indicating the difficulty of the course. It is a set of fault types; The data platform is based on course difficulty parameters. Configure device control permissions; S4. Perform fault injection and response: Data platform set by fault type Modify the device input signal: ; in, It is a fault input signal. It is a normal input signal. It is the sensor offset; Student operating terminal fault input signal detection This triggers the alarm interface and records the debugging actions. S5. Execution and Verification: The student's terminal receives touch commands, converts them into Modbus control frames, and sends them to the local controller. The local controller performs dual verification of PLC logic and operation timeout on Modbus control frames. Steps S3-S5 complete the layered collaboration, and the specific steps are as follows: SS1. Teacher terminal sends practical training tasks To the data platform; SS2. Data Platform Injection Fault Type Set The control program is then sent to the student's operating terminal; SS3. The student's operating terminal displays the device control interface and task objectives; SS4. During student operations, the data platform forwards the operation sequence in real time. To the teacher's terminal; SS5. Student terminal submits fault repair results To the data platform; SS6. When the task is completed, the data platform pushes a completion notification and preliminary score to the teacher's terminal. ; S6. The data platform analyzes the trainees' operation trajectory and outputs a capability assessment report; The specific steps of step S6 are as follows: S61. Obtain practical training tasks from the teacher's terminal. Collect student operation data from student operation terminals ; in, It is an operation sequence. This is the result of fault repair; S62. Perform evaluation index calculation; the evaluation index includes fault repair rate. Operational efficiency Process compliance ;

[0037] in, This refers to the number of successful repairs. This refers to the number of injection failures;

[0038] in, This is the standard operating time. It refers to the actual operation time;

[0039] in, This is a violation of operating procedures. This is the overall process; S63. Calculate the overall score based on the evaluation indicators. ;

[0040] S64. Push a competency assessment report containing weaknesses, historical comparisons, and suggested courses to the teacher's terminal; For example, a competency assessment report is as follows: json { "Weak Links": ["Sensor Calibration" | "PLC Timing Control"], Historical Comparison: "Efficiency improved by 15% compared to the previous training session". Recommended Course: "Intelligent Sensor Fault Diagnosis" } S65. Send a comprehensive score to the student's operating terminal. And optimization suggestions.

[0041] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0042] The teaching and training sandbox control method for industrial scenarios provided in this application embodiment can be applied to electronic devices. Those skilled in the art will understand that the electronic device structure involved in the embodiments of this invention does not constitute a limitation on the electronic device. An electronic device may include more or fewer components than illustrated, or combine certain components, or have different component arrangements. In the embodiments of this invention, the electronic device includes, but is not limited to, laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of this application described and / or claimed herein.

[0043] Electronic devices may include processors, external memory interfaces, internal memory, universal serial bus (USB) interfaces, charging management modules, power management modules, batteries, wireless communication modules, audio modules, speakers, microphones, sensor modules, buttons, cameras, displays, and SIM card interfaces, etc.

[0044] It is understood that the structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device. In other embodiments of this application, the electronic device may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0045] A processor may include one or more processing units, such as a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural network processing unit (NPU). Different processing units may be independent devices or integrated into one or more processors.

[0046] The processor can serve as the nerve center and command center of an electronic device. The controller can generate operation control signals based on the instruction opcode and timing signals to control the fetching and execution of instructions.

[0047] The processor may also include memory for storing instructions and data. In some embodiments, the memory in the processor is a cache memory. This memory can store instructions or data that the processor has just used or that are used repeatedly. If the processor needs to use the instruction or data again, it can retrieve it directly from this memory. This avoids repeated accesses, reduces processor latency, and thus improves system efficiency.

[0048] The aforementioned electronic device implements the execution scenario initialization of the teaching and training sand table control method for industrial scenarios applied in this application: the data platform reads the scenario type from the identifier storage chip, loads the corresponding control program and monitoring interface; establishes a unified data dictionary for the current scenario type, mapping the device physical address; connects the general device module to the currently active replaceable scenario module or sand table base, and the data platform collects sensor group data in a standardized manner; executes teaching task configuration: the teacher terminal configures the training task; the data platform executes the teaching task configuration according to the course difficulty parameters. The system sets device control permissions; performs fault injection and response: the data platform modifies device input signals according to fault type sets; student operation terminals detect fault input signals, trigger alarm interfaces, and record debugging actions; performs operations and verification: student operation terminals receive touch commands, convert them into Modbus control frames, and send them to the local controller; the local controller performs dual verification of PLC logic and operation timeout on the Modbus control frames; the data platform analyzes student operation trajectories and outputs capability assessment reports, achieving modular sandbox design, rapid scene switching, and improved teaching and training efficiency; replaceable scene modules reduce costs, data management is precise, and teaching effects are significant; through interactive terminals, the system achieves flexible and varied teaching scenarios and data-driven accurate assessment.

[0049] The storage medium provided in this application stores a program product that enables the control method of a teaching and training sandbox for industrial application scenarios.

[0050] The control method for teaching and training sandboxes in industrial scenarios includes: Scene initialization: The data platform reads the scene type from the identifier storage chip, loads the corresponding control program and monitoring interface; establishes a unified data dictionary for the current scene type, mapping device physical addresses; connects general-purpose device modules to the currently active replaceable scene module or sandbox base, and the data platform collects sensor group data in a standardized manner; Teaching task configuration: The teacher's terminal configures the training tasks; the data platform adjusts the settings according to the course difficulty parameters. Set device control permissions; perform fault injection and response: the data platform modifies the device input signals according to the fault type set; the student operation terminal detects the fault input signal, triggers the alarm interface and records the debugging action; perform operation and verification: the student operation terminal receives touch commands, converts them into Modbus control frames and sends them to the local controller; the local controller performs dual verification of PLC logic and operation timeout on the Modbus control frames; the data platform analyzes the student operation trajectory and outputs a capability assessment report.

[0051] In some possible implementations, the teaching and training sandbox control method for industrial scenarios disclosed herein can be implemented as a program product, which includes program code. When the program product is run on a terminal device, the program code is used to cause the terminal device to perform the steps described in the "Exemplary Methods" section above according to various exemplary embodiments of this disclosure.

[0052] The storage medium disclosed herein may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A teaching and training sand table system applied in industrial scenarios, characterized in that, Includes a sand table base, replaceable scene modules, general equipment modules, interactive terminals, and a data platform; The sand table base integrates a central control unit, and the surface of the sand table base is provided with modular slots to provide physical mounting surfaces and electrical connection channels; The replaceable scene module is connected to the sand table base via a modular slot, and the replaceable scene module has built-in scene-specific hardware, a local controller, and an identification storage chip; the identification storage chip stores the current scene type and device list; The general-purpose equipment module includes sensor groups and actuators that can be reused across different scenarios, and the general-purpose equipment module can be detachably connected to the sand table base or the currently activated replaceable scenario module; The interactive terminals include teacher terminals and student operation terminals, both of which are connected to the central control unit; The data platform is integrated into the central control unit and executes: Read the scene type of the identification storage chip and load the corresponding scene's control program and monitoring interface; Establish a unified data dictionary for the current scenario type, map the physical addresses of all devices in the current scenario type, and standardize the collection of sensor group data.

2. The teaching and training sand table system applied to industrial scenarios according to claim 1, characterized in that, The sand table base also integrates a power management module and a network communication module, both of which are connected to the central control unit; The modular slot includes a slot body, mechanical positioning latches, electrical connection terminals, and a hot-swap protection circuit. Symmetrical mechanical positioning latches are set on both sides of the slot body along its longitudinal direction; The electrical connection terminals are in the form of metal contacts and are located in the central area inside the slot body; The hot-swap protection circuit is used to detect a sudden change in current of the replaceable scene module or general equipment module, determine that it is in a hot-swap state, cut off the power supply of the power management module to the sand table base, and restore the power supply of the power management module to the sand table base after the new replaceable scene module or general equipment module is reset.

3. The teaching and training sand table system applied to industrial scenarios according to claim 1, characterized in that, The data dictionary contains a device address mapping table, data acquisition parameters, and alarm thresholds. The device address mapping table is associated with the physical addresses of scene-specific hardware and general device modules; The data acquisition parameters are the sampling frequency set according to the scene type; Alarm thresholds are a set of thresholds corresponding to sensor group data associated with scene type.

4. The teaching and training sand table system applied to industrial scenarios according to claim 1, characterized in that, The central control unit performs protocol adaptation: Read the scene type from the identification storage chip and identify the native protocol used for that scene type. ; Transform the native protocol using a protocol conversion function. Convert to a platform-compatible protocol; The platform compatibility protocol generates instructions that are output to the local controller of the replaceable scene module.

5. The teaching and training sand table system applied to industrial scenarios according to claim 1, characterized in that, The teacher terminal is used to generate course configuration instructions, control fault injection, and monitor student operations. The specific steps for generating the course configuration instructions are as follows: Select the scenario type, generate the scenario activation command, and send it to the data platform; Configure course difficulty parameters ; The fault injection control is specifically as follows: Set the set of fault types ; Based on the fault type set through the data platform Modify the device input signals in the current scene; The specific details of the student operation monitoring are as follows: Receiving the student operation sequence forwarded by the data middle platform in, It's the start time. It is the end time. It is the device ID used in the scene; Real-time marking of abnormal operation events; The student operating terminal executes device control responses and fault handling feedback; The specific device control response is as follows: Analyze the control programs issued by the data platform and generate an HMI visualization interface; Receive touch commands from students, convert them into Modbus control frames, and send them to the local controller; The specific fault handling feedback is as follows: When a fault is detected, the alarm interface will not be activated and the student's debugging actions will be recorded. The results of the fault repair are fed back to the data platform.

6. A teaching and training sand table control method for industrial scenarios, characterized in that, The teaching and training sand table system applied to industrial scenarios according to any one of claims 1-5 comprises the following specific steps: S1. Perform scenario initialization: The data platform reads the scene type of the identification storage chip and loads the corresponding control program and monitoring interface; Establish a unified data dictionary for the current scenario type and map it to device physical addresses; S2. Connect the general equipment module to the currently activated replaceable scene module or sand table base, and collect sensor group data in a standardized manner through the data platform; S3. Configure teaching tasks: Teacher terminal configuration of practical training tasks in, This is a parameter indicating the difficulty of the course. It is a set of fault types; The data platform is based on course difficulty parameters. Configure device control permissions; S4. Perform fault injection and response: Data platform set by fault type Modify the device input signal: ； in, It is a fault input signal. It is a normal input signal. It is the sensor offset; Student operating terminal fault input signal detection This triggers the alarm interface and records the debugging actions. S5. Execution and Verification: The student's terminal receives touch commands, converts them into Modbus control frames, and sends them to the local controller. The local controller performs dual verification of PLC logic and operation timeout on Modbus control frames. S6. The data platform analyzes the trainees' operation trajectory and outputs a capability assessment report.

7. The teaching and training sand table control method for industrial scenarios according to claim 6, characterized in that, Steps S3-S5 complete the layered collaboration, and the specific steps are as follows: SS1. Teacher terminal sends practical training tasks To the data platform; SS2. Data Platform Injection Fault Type Set The control program is then sent to the student's operating terminal; SS3. The student's operating terminal displays the device control interface and task objectives; SS4. During student operations, the data platform forwards the operation sequence in real time. To the teacher's terminal; SS5. Student terminal submits fault repair results To the data platform; SS6. When the task is completed, the data platform pushes a completion notification and preliminary score to the teacher's terminal. .

8. The teaching and training sand table control method for industrial scenarios according to claim 7, characterized in that, The specific steps of step S6 are as follows: S61. Obtain practical training tasks from the teacher's terminal. Collect student operation data from student operation terminals ; in, It is an operation sequence. This is the result of fault repair; S62. Perform evaluation index calculation; the evaluation index includes fault repair rate. Operational efficiency Process compliance ; in, This refers to the number of successful repairs. This refers to the number of injection failures; in, This is the standard operating time. It refers to the actual operation time; in, This is a violation of operating procedures. This is the overall process; S63. Calculate the overall score based on the evaluation indicators. ; S64. Push a competency assessment report containing weaknesses, historical comparisons, and suggested courses to the teacher's terminal; S65. Send a comprehensive score to the student's operating terminal. And optimization suggestions.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the teaching and training sand table control method for industrial application scenarios as described in any one of claims 6 to 8.

10. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the teaching and training sand table control method for industrial application scenarios as described in any one of claims 6 to 8.

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