Circuit simulation method and system

By acquiring interaction points on the monitor, determining the position and orientation of experimental equipment, and constructing virtual terminals, the problem of difficulty in interaction between real devices and the experimental screen is solved, enabling low-cost and efficient analog circuit teaching.

CN121505967APending Publication Date: 2026-02-10BEIJING WEICHENGYA LAB EQUIP
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Patent Information

Application Number
CN202511603187.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

In existing experimental setups, fully simulated equipment cannot accurately reflect the operation of power systems, resulting in poor teaching effectiveness. On the other hand, fully realistic equipment is expensive and difficult to maintain, and interaction between real devices and the experimental screen is difficult.

Method used

By acquiring the interaction points on the display, the position of the experimental equipment on the display is determined, and the position of the virtual terminal is determined based on the position, so as to realize the interaction between the real device and the experimental screen and construct the analog circuit.

Benefits of technology

This approach combines real and analog devices, improving teaching effectiveness, reducing costs, and simplifying the maintenance process.

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Abstract

The invention provides a simulation method and system of a circuit, and relates to the technical field of experimental equipment. Based on the interaction point, determining the pose of the experimental apparatus on the display; based on the pose of the experimental apparatus on the display, determining the position of a virtual binding post corresponding to the experimental apparatus on the display, and sending a first display instruction to the display to enable the display to display the virtual binding post; a second display instruction is sent to the display, so that the display displays a simulation connection line between the virtual binding posts; wherein the virtual binding post, the simulation connecting line and the experiment equipment form a simulation circuit to realize interaction between the real device and the experiment screen, so that the simulation circuit combining the real device and the simulation device is obtained.
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Description

Technical Field

[0001] This invention relates to the field of experimental equipment technology, and more specifically, to a circuit simulation method and system. Background Technology

[0002] Experimental setups are generally divided into two types: fully simulated and fully realistic. Fully simulated experimental equipment cannot accurately reflect the operation of a power system and cannot simulate the safety and fault handling in actual power operations, resulting in poor teaching and experimental effects. On the other hand, fully realistic experimental equipment (such as experimental equipment switches, sliding rheostats, and voltmeters) can accurately reflect the operation of a power system, but realistic experimental equipment is more expensive and difficult to maintain.

[0003] To address the issues inherent in both fully simulated and fully realistic experimental setups, it is necessary to address the fact that when real devices are fixed on the experimental screen, it is impossible to achieve interaction between the real devices and the experimental screen, or to combine real devices with simulated devices in the circuit display on the experimental screen. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a simulation method and system for analog circuits to realize the interaction between real devices and experimental screens, thereby obtaining an analog circuit that combines real devices and analog devices.

[0005] In a first aspect, this application provides a method for simulating a circuit, comprising: Obtain the interaction points on the display; where interaction points are the points where the experimental equipment contacts the display, and the number of interaction points is not less than three. Based on the interaction points, determine the pose of the experimental equipment on the monitor; Based on the pose of the experimental equipment on the display, determine the position of the virtual terminal corresponding to the experimental equipment on the display, and send a first display command to the display so that the display shows the virtual terminal. A second display command is sent to the display to cause the display to show the simulated connection between the virtual terminals; wherein the virtual terminals, the simulated connection, and the experimental equipment constitute the analog circuit.

[0006] Optionally, after sending the second display command to the display, the following may also be included: Send a third display command to the signal output device in the experimental setup so that the signal output device can display the output result corresponding to the analog circuit.

[0007] Optionally, before sending the third demonstration command to the signal output device in the experimental setup, the following may also be included: Obtain the current simulation operating parameters of the experimental equipment displayed on the monitor; Based on the current analog operating parameters and the analog connections in the analog circuit, determine the corresponding output result of the analog circuit.

[0008] Optionally, before determining the output result corresponding to the analog circuit, the following steps are also included: It has been confirmed that a power supply analog is present in the analog circuit; Receive a first interactive signal sent by the power supply analog power source, and determine the first analog operating parameters of the power supply analog power source based on the first interactive signal; the first analog operating parameters include analog voltage; Based on the connection relationship between the experimental devices in the analog circuit, determine whether each experimental device in the analog circuit is short-circuited; if not, determine the second analog operating parameters of each experimental device. Based on the second analog operating parameters and the set parameters of each experimental device, determine whether each experimental device in the analog circuit is damaged; if not, then the analog circuit is confirmed to be correct.

[0009] Optionally, before determining the output result corresponding to the analog circuit, the following steps are also included: When it is determined that the experimental equipment in the analog circuit is short-circuited, a short-circuit warning message is generated and sent to the display.

[0010] Optionally, a third display command is sent to the signal output device to cause the signal output device to display the output result corresponding to the analog circuit, including: The analog operating parameters corresponding to the signal output devices in the experimental setup are used as the output results of the analog circuit.

[0011] Optionally, before sending the second display command to the display, the following may also be included: Receive connection interaction signals sent by the display; determine the simulated connections between virtual terminals based on the connection interaction signals.

[0012] Optionally, based on the interaction points, the pose of the experimental equipment on the display is determined, including: Based on the interaction points, a position recognition strategy is used to determine the position and angle of the experimental equipment on the monitor. The position recognition strategy is to determine the positioning image corresponding to the experimental equipment and the center point of the positioning image based on the interaction points. The positioning image is a triangular positioning image. Based on the positioning image, the center point of the image, and the calibration parameters, the position and angle of the experimental equipment on the monitor are determined. Based on the position and angle of the experimental equipment on the monitor, determine the position of the virtual terminal block corresponding to the experimental equipment on the monitor.

[0013] Secondly, this application provides a circuit simulation system, comprising: Experimental screen, including display and controller; Experimental equipment includes an experimental base and an equipment body, with the equipment body fixedly connected to the monitor via the experimental base; The controller is connected to the display and the experimental equipment signals respectively, and is used to execute the simulation method of the above circuit.

[0014] Optionally, the experimental base includes a base body, an identification component, and a fixing component. The identification component is connected to the base body through the fixing component, and the experimental base is fixedly connected to the display through the fixing component. The identification component abuts against the display. The display includes multiple sensor units, which are used to acquire interaction points on the display, wherein the interaction points are the points where the identification components contact the display.

[0015] This invention provides a circuit simulation method and system, which involves: acquiring interaction points on a display; determining the pose of experimental equipment on the display based on the interaction points; determining the position of virtual terminals corresponding to the experimental equipment on the display based on the pose of the experimental equipment, and sending a first display command to the display to cause the display to show the virtual terminals; and sending a second display command to the display to cause the display to show the simulated connection between the virtual terminals. The virtual terminals, simulated connections, and experimental equipment constitute a simulation circuit to enable interaction between real devices and the experimental screen, thereby obtaining a simulation circuit combining real and simulated devices.

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic flowchart of a circuit simulation method provided by an embodiment of the present invention is shown; Figure 2 This diagram illustrates the pose of the experimental equipment on the display provided in an embodiment of the present invention. Figure 3 A schematic diagram of the structure of a circuit analog system provided in an embodiment of the present invention is shown; Figure 4 A schematic diagram of the structure of the experimental base provided in an embodiment of the present invention is shown; Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present invention is shown. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] This application provides a circuit simulation method, see embodiments. Figure 1 As shown, the general flow of the circuit simulation method provided in this application embodiment is as follows: Step 110: Obtain the interaction points on the display; wherein, the interaction points are the points where the experimental equipment contacts the display, and the number of interaction points is not less than three.

[0021] In this embodiment of the application, the methods for obtaining interaction points on the display include, but are not limited to, the following: The interaction points are collected by multiple sensors in the display, which are located at the contact points between the identification component in the experimental base of the experimental equipment and the display.

[0022] Step 120: Based on the interaction points, determine the pose of the experimental equipment on the display.

[0023] In this embodiment of the application, the pose of the experimental equipment on the display can be determined in the following way: based on the interaction point, the position and angle of the experimental equipment on the display are determined using a position recognition strategy; wherein, the position recognition strategy is to determine the positioning image corresponding to the experimental equipment and the image center point of the positioning image based on the interaction point; wherein, the positioning image is a triangular positioning image; and the position and angle of the experimental equipment on the display are determined based on the positioning image, the image center point and the calibration parameters. Based on the position and angle of the experimental equipment on the monitor, determine the position of the virtual terminal block corresponding to the experimental equipment on the monitor.

[0024] Specifically, such as Figure 2As shown, firstly, based on the interaction points, at least one positioning image can be obtained by grouping three interaction points together. The positioning image is a triangular positioning image. Based on the three interaction points in the positioning image, the three actual side lengths corresponding to the positioning image are determined. Based on the correspondence between the calibration base code and the calibration side length (the calibration side length includes three side lengths), the three actual side lengths are matched with the calibration side length. If the match is successful, the actual base code corresponding to the positioning image is determined. Based on the correspondence between the calibration base code and the calibration parameters, the calibration parameters of the experimental base corresponding to the positioning image can be determined through the actual base code. The calibration parameters include the calibration offset angle, the calibration positioning angle, and the calibration positioning distance, as well as taking the center of the inscribed circle of the positioning image as the image center point of the positioning image. Then, based on the first and second conditions, the first vertex, the second vertex, and the third vertex of the positioning image are determined. The first condition is that when the line connecting two vertices forms the longest side of the positioning image, a side length vector is constructed based on the line. If the other vertex is located to the left of the side length vector, the starting point of the side length vector is the first vertex, and the ending point of the side length vector is the second vertex. The left side is defined as the left side of the direction from the starting point of the side length vector towards the ending point of the side length vector. The second condition is that any vertex other than the one forming the longest side of the positioning image is taken as the third vertex of the current positioning image. Finally, based on the image center point O2, the calibration positioning distance, and the calibration positioning angle, the actual position coordinates of the experimental base center point O2 on the monitor were determined. Based on the line connecting the first vertex P1 and the second vertex P2 in the positioning image, the first vector Va is determined; where the first vector Va is perpendicular to the line connecting the first vertex P1 and the second vertex P2 and points to the third vertex P; based on the angle between the first vector Va and the second vector Vy, the actual offset angle (x°) of the experimental base is determined; where the second vector Vy is a vector with the center point of the experimental base as the starting point and the base vertex of the experimental base as the ending point; the angle is the angle between the second vector Vy as the starting point and the first vector Va as the midpoint and ending point; based on the difference between the calibrated offset angle (56.43°) and the actual offset angle (x°), the actual angle of the experimental base on the display is determined; by using the actual position coordinates and actual angle of the center point of the experimental base on the display, the specific pose of the experimental base on the display, i.e., the specific position and the specific angle, are determined.

[0025] Step 130: Based on the pose of the experimental equipment on the display, determine the position of the virtual terminal corresponding to the experimental equipment on the display, and send a first display command to the display so that the display shows the virtual terminal.

[0026] In this embodiment of the application, the specific position of the virtual terminal corresponding to the experimental equipment on the display is determined based on the specific position and angle of the experimental equipment on the display. For example, the virtual terminal is located below the experimental equipment and the distance between the virtual terminal and the experimental equipment is 10mm. Step 140: Send a second display command to the display so that the display shows the simulated connection between the virtual terminals; wherein, the virtual terminals, the simulated connection and the experimental equipment constitute the analog circuit.

[0027] In this embodiment of the application, before the controller sends the second display instruction to the display, it further includes: receiving a connection interaction signal sent by the display; and determining the simulated connection between the virtual terminals based on the connection interaction signal.

[0028] Furthermore, when the user selects the custom operation interface displayed on the monitor, and the monitor displays the virtual terminals corresponding to the experimental equipment, the system receives the connection interaction signal sent by the monitor and determines the simulated connection between the virtual terminals based on the connection interaction signal. Furthermore, when the user selects the standard interface displayed on the monitor, and the monitor displays the virtual terminals corresponding to the experimental equipment, the standard analog wiring corresponding to the analog circuit is invoked to simulate the connection between the virtual terminals.

[0029] It should be noted that the experimental equipment has an identification mark inside the equipment body to identify the type of the equipment body. Different equipment bodies have different identification marks. For example, the identification mark can be a resistance value. Different equipment bodies are equipped with different resistors. The controller can determine the specific type of experimental equipment by receiving the identification mark sent by the equipment body.

[0030] In this embodiment of the application, after sending the second display instruction to the display, the method further includes: sending a third display instruction to the signal output device in the experimental equipment, so that the signal output device displays the output result corresponding to the analog circuit.

[0031] Furthermore, before sending the third display command to the signal output device in the experimental equipment, the process also includes: obtaining the current simulation operating parameters of the experimental equipment on the display; and determining the corresponding output result of the simulation circuit based on the current simulation operating parameters and the simulation connections in the simulation circuit.

[0032] Specifically, based on the current analog operating parameters and analog connections of each experimental device in the analog circuit, the output result of the analog circuit is determined, and the output structure is sent to the signal output device used to display the output result, so that the signal output device can display the corresponding output result of the analog circuit. The signal output device includes, but is not limited to, light bulbs, ammeters, and voltmeters. In this embodiment of the application, before determining the output result corresponding to the analog circuit, the method further includes: It has been confirmed that a power supply analog is present in the analog circuit; Receive a first interactive signal sent by the power supply analog power source, and determine the first analog operating parameters of the power supply analog power source based on the first interactive signal; the first analog operating parameters include analog voltage; Based on the connection relationship between the experimental devices in the analog circuit, determine whether each experimental device in the analog circuit is short-circuited; if not, determine the second analog operating parameters of each experimental device. Based on the second analog operating parameters and the set parameters of each experimental device, determine whether each experimental device in the analog circuit is damaged; if not, then the analog circuit is confirmed to be correct.

[0033] Specifically, when it is determined that the experimental equipment in the analog circuit is short-circuited, a short-circuit warning message is generated and sent to the display; and the analog operating parameters corresponding to the signal output equipment in the experimental equipment are used as the output results of the analog circuit.

[0034] Specifically, the process for determining whether the analog circuit displayed on the monitor is correct is as follows: First, based on the analog circuit, it is determined whether a power supply analog power source exists in the analog circuit. If it exists, the first interactive signal sent by the power supply analog power source is received. Based on the first interactive signal, the first analog operating parameters of the power supply analog power source are determined. The first analog operating parameters include the analog voltage, i.e., the power supply voltage of the current analog circuit. Among these parameters, the equipment identification information sent by all experimental equipment in the analog circuit is received. Based on the equipment identification information, it is determined whether a power supply analog power source exists in the analog circuit. Each piece of equipment has unique identification information. For example, the identification information of the power supply analog power source is that its resistance value is 1Ω, and the identification information of the ammeter is that its resistance value is 5Ω. Based on the connection path of the virtual terminals and the direction of the simulated wiring in the simulation circuit, determine whether there are short circuits such as the two ends of the experimental equipment being directly shorted by the simulated wiring and the positive and negative terminals of the power supply simulation being directly connected; if there are no short circuits, determine the second simulation operating parameters of each experimental equipment; if there are short circuits, reconstruct the simulation circuit and / or repair the experimental equipment. Based on the second analog operating parameters and the set parameters of each experimental device, a linear equation matrix describing the current and voltage constraints in the analog circuit is established using Ohm's law and Kirchhoff's laws. The linear equation matrix is ​​then solved using the LU decomposition method to obtain the current values ​​of each branch in the analog circuit (i.e., the second analog operating parameters). Based on the second analog operating parameters of the current values ​​of each branch and the set parameters of each experimental device (such as the rated power of the resistor, the withstand voltage of the capacitor, and the maximum current threshold), it is determined whether each experimental device in the analog circuit is damaged. If not, the analog circuit is confirmed to be correct. If so, the analog circuit is reconstructed and / or the experimental device is repaired, and the above method is used to determine whether the reconstructed analog circuit is correct. The analog operating parameters corresponding to the signal output devices in the experimental equipment are used as the corresponding output results of the analog circuit.

[0035] This application provides a circuit simulation system, see below. Figure 3 As shown, the circuit simulation system provided in this application embodiment includes: an experimental screen 310 and experimental equipment 320. The experimental screen 310 includes a display 311 and a controller 312. The experimental equipment 320 includes an experimental base and an equipment body. The equipment body is fixedly connected to the display 311 through the experimental base. The controller 312 is signal-connected to the display 311 and the experimental equipment 320 respectively. The controller is used to execute the above-mentioned circuit simulation method.

[0036] In this embodiment, the experimental base includes a base body 621, an identification component 622, and a fixing component 623. The identification component 622 is connected to the base body 621 through the fixing component 623. The experimental base is fixedly connected to the display 311 through the fixing component 623. The identification component 622 abuts against the display 311. The display includes multiple sensor units, which are used to acquire interaction points on the display. The interaction point is the point where the identification component contacts the display.

[0037] like Figure 4 As shown, the experimental base includes a base body 621, an identification component 622, and a fixing component 623. One end of the fixing component 623 is connected to the identification component 622, and the other end is connected to one end of the base body 621. The other end of the base body 621 is connected to the equipment body. The experimental equipment is fixedly connected to the display via the experimental base 620. The fixing component 623 is a suction cup type fixing component, which includes a suction cup body, a negative pressure structure, and a control structure. The negative pressure structure and the control structure are located inside the base body 621. The suction cup body is located on the end face of the base body 621 away from the equipment body. The control structure controls the negative pressure structure to create a negative pressure inside the suction cup body, thereby fixing the experimental base 620 to the display.

[0038] It should be noted that the principle of the circuit simulation system provided in the embodiments of this application to solve the technical problem is similar to the circuit simulation method provided in the embodiments of this application. Therefore, the implementation of the circuit simulation system provided in the embodiments of this application can refer to the implementation of the circuit simulation method provided in the embodiments of this application, and the repeated parts will not be described again.

[0039] After introducing the circuit simulation method and system provided in the embodiments of this application, the electronic device provided in the embodiments of this application will be briefly introduced next.

[0040] See Figure 5 As shown, the electronic device 500 provided in this application embodiment includes at least a processor 501, a memory 502, and a computer program stored in the memory 502 and executable on the processor 501. When the processor 501 executes the computer program, it implements the circuit simulation method provided in this application embodiment.

[0041] The electronic device 500 provided in this application embodiment may further include a bus 503 connecting different components (including processor 501 and memory 502). The bus 503 represents one or more types of bus structures, including memory bus, peripheral bus, local area bus, etc.

[0042] Memory 502 may include a readable storage medium in the form of volatile memory, such as random access memory (RAM) 5021 and / or cache memory 5022, and may further include read-only memory (ROM) 5023. Memory 502 may also include a program tool 5025 having a set (at least one) of program modules 5024, including but not limited to an operating subsystem, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0043] Processor 501 can be a single processing element or a collective term for multiple processing elements. For example, processor 501 can be a central processing unit (CPU) or one or more integrated circuits configured to implement the analog method of the circuit provided in the embodiments of this application. Specifically, processor 501 can be a general-purpose processor, including but not limited to CPUs, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0044] Electronic device 500 can communicate with one or more external devices 504 (e.g., keyboard, remote control, etc.), and also with one or more devices that enable a user to interact with electronic device 500 (e.g., mobile phone, computer, etc.), and / or with devices that enable electronic device 500 to communicate with one or more other electronic devices 500 (e.g., router, modem, etc.). This communication can be performed through input / output (I / O) interface 505. Furthermore, electronic device 500 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) through network adapter 506. Figure 5 As shown, network adapter 506 communicates with other modules of electronic device 500 via bus 503. It should be understood that, although... Figure 5 As not shown, other hardware and / or software modules may be used in conjunction with the electronic device 500, including but not limited to microcode, device drivers, redundant processors, external disk drive arrays, Redundant Arrays of Independent Disks (RAID) subsystems, tape drives, and data backup storage subsystems.

[0045] It should be noted that, Figure 5 The electronic device 500 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0046] The computer-readable storage medium provided in the embodiments of this application is described below. The computer-readable storage medium provided in the embodiments of this application stores computer instructions, which, when executed by a processor, implement the circuit simulation method provided in the embodiments of this application. Specifically, the computer instructions can be built into or installed in the processor, so that the processor can implement the circuit simulation method provided in the embodiments of this application by executing the built-in or installed computer instructions.

[0047] In addition, the circuit simulation method provided in the embodiments of this application can also be implemented as a computer program product, which includes program code that implements the circuit simulation method provided in the embodiments of this application when running on a processor.

[0048] The computer program product provided in this application embodiment may employ one or more computer-readable storage media, which may be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination thereof. Specifically, more specific examples (a non-exhaustive list) of computer-readable storage media include electrical connections with one or more wires, portable disks, hard disks, RAM, ROM, erasable programmable read-only memory (EPROM), optical fibers, portable compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0049] The computer program product provided in this application embodiment can be a CD-ROM and include program code, and can also run on electronic devices such as computers. However, the computer program product provided in this application embodiment is not limited thereto. In this application embodiment, the computer-readable storage medium can be any tangible medium that contains or stores program code, which can be used by or in conjunction with an instruction execution system, device, or apparatus.

[0050] It should be noted that although several units or sub-units of the device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of this application, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided and embodied by multiple units.

[0051] Furthermore, although the operations of the method of this application are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0052] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0053] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of the embodiments of this application. Therefore, if these modifications and variations to the embodiments of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A method for simulating a circuit, characterized in that, include Acquire interaction points on the display; wherein, the interaction point is the point where the experimental equipment contacts the display, and the number of interaction points is not less than three; Based on the interaction points, the pose of the experimental equipment on the display is determined; Based on the pose of the experimental equipment on the display, the position of the virtual terminal corresponding to the experimental equipment on the display is determined, and a first display command is sent to the display so that the display shows the virtual terminal. A second display command is sent to the display to cause the display to show the simulated connection between the virtual terminals; wherein the virtual terminals, the simulated connection, and the experimental equipment constitute a simulated circuit.

2. The circuit simulation method according to claim 1, characterized in that, After sending the second display command to the display, the process also includes: A third display command is sent to the signal output device in the experimental setup so that the signal output device displays the output result corresponding to the analog circuit.

3. The circuit simulation method according to claim 2, characterized in that, Before sending the third display command to the signal output device in the experimental apparatus, the following is also included: Obtain the current simulation operating parameters of the experimental equipment displayed on the monitor; Based on the current simulation operating parameters and the simulation connections in the simulation circuit, the corresponding output result of the simulation circuit is determined.

4. The circuit simulation method according to claim 3, characterized in that, Before determining the output result corresponding to the analog circuit, the process also includes: It is confirmed that a power supply analog is present in the analog circuit; The system receives a first interactive signal from the simulated power supply and determines first simulated operating parameters of the simulated power supply based on the first interactive signal; the first simulated operating parameters include simulated voltage. Based on the connection relationship between the experimental devices in the analog circuit, determine whether each of the experimental devices in the analog circuit is short-circuited; if not, determine the second analog operating parameters of each of the experimental devices. Based on the second simulated operating parameters of each experimental device and the set parameters of each experimental device, determine whether each experimental device in the simulation circuit is damaged; if not, determine that the simulation circuit is correct.

5. The circuit simulation method according to claim 4, characterized in that, Before determining the output result corresponding to the analog circuit, the process also includes: When it is determined that the experimental equipment in the analog circuit is short-circuited, a short-circuit warning message is generated and sent to the display.

6. The circuit simulation method according to claim 4, characterized in that, Sending a third display command to the signal output device to cause the signal output device to display the output result corresponding to the analog circuit includes: The analog operating parameters corresponding to the signal output device in the experimental apparatus are used as the output results of the analog circuit.

7. The circuit simulation method according to claim 1, characterized in that, Before sending the second display command to the display, the method further includes: Receive connection interaction signals sent by the display; determine the simulated connection between the virtual terminals based on the connection interaction signals.

8. The circuit simulation method according to claim 1, characterized in that, Based on the interaction points, the pose of the experimental equipment on the display is determined, including: Based on the interaction points, a position recognition strategy is used to determine the position and angle of the experimental equipment on the display; wherein, the position recognition strategy is to determine the positioning image corresponding to the experimental equipment and the image center point of the positioning image based on the interaction points; wherein, the positioning image is a triangular positioning image; and based on the positioning image, the image center point, and calibration parameters, the position and angle of the experimental equipment on the display are determined. Based on the position and angle of the experimental equipment on the display, the position of the virtual terminal block corresponding to the experimental equipment on the display is determined.

9. A circuit simulation system, characterized in that, include: Experimental screen, including display and controller; The experimental equipment includes an experimental base and an equipment body, wherein the equipment body is fixedly connected to the display via the experimental base; The controller is connected to the display and the experimental equipment respectively, and the controller is used to perform the simulation method of the circuit as described in any one of claims 1 to 8.

10. The circuit simulation system according to claim 9, characterized in that, The experimental base includes a base body, an identification component, and a fixing component. The identification component is connected to the base body through the fixing component, and the experimental base is fixedly connected to the display through the fixing component. The identification component abuts against the display. The display includes multiple sensor units, which are used to acquire interaction points on the display, wherein the interaction points are the points where the recognition component contacts the display.