Direct current system operation auxiliary monitoring method and device, storage medium and electronic equipment

Abstract

The invention provides a direct current system operation auxiliary monitoring method and device, a storage medium and electronic equipment, and relates to the technical field of power systems, and the method comprises the steps: obtaining the input voltage of a switching handle; determining an output voltage based on the input voltage and a reference voltage; determining a system state based on the voltage threshold and the state coefficient; determining a risk value based on the occurrence probability of each risk and the corresponding risk cost; and the output voltage, the system state and the risk value are displayed through the display screen. According to the invention, an operator can check the voltage condition in real time; the opening and closing state of the switching handle can be checked; the risk of the direct current system is predicted and reminded, accidents caused by improper operation or misoperation of operators are avoided, and safe operation of the system is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to a method, device, storage medium and electronic equipment for auxiliary monitoring of direct current system operation. Background Art

[0002] In modern power systems, DC systems are widely used in the operation and control of key equipment such as substations and power plants. The stability and reliability of DC systems are crucial to the normal operation of power systems.

[0003] The existing DC system lacks the function of real-time voltage monitoring during operation. When the operator switches or adjusts the voltage, it is impossible to obtain accurate voltage information, which may lead to improper operation, switching failure or voltage abnormality, and ultimately cause system failure. In addition, the existing system does not monitor the state of the switching operation perfectly, and the operator cannot directly judge whether the opening and closing state of the operating handle is correct, which increases the risk of misoperation. Summary of the invention

[0004] The main purpose of the present invention is to provide a DC system operation auxiliary monitoring method, device, storage medium and electronic device to solve at least one of the technical problems in the prior art that operators cannot obtain accurate voltage information when switching or adjusting voltage, cannot directly determine whether the opening and closing state of the operating handle is correct, and the risk of misoperation is increased.

[0005] In order to achieve the above-mentioned objectives, the first aspect of the present invention provides a method for auxiliary monitoring of DC system operation, including: obtaining the input voltage of the switching handle; determining the output voltage based on the input voltage and the reference voltage; determining the system state based on the voltage threshold and the state coefficient; determining the risk value based on the probability of occurrence of each risk and the corresponding risk cost; and displaying the output voltage, the system state, and the risk value through a display screen.

[0006] Furthermore, after obtaining the input voltage of the switching handle, the method further includes: determining a gain coefficient based on the input voltage; and determining the output voltage based on the input voltage and the reference voltage includes:

[0007] V out =K·(V in -V ref );

[0008] Among them, V out is the output voltage, K is the gain factor, V in is the input voltage, V ref is the reference voltage.

[0009] Further, the determining of the system state based on the voltage threshold and the state coefficient includes:

[0010] S=K1·V threshold ;

[0011] Where S is the system state, K1 is the state coefficient, V threshold is the voltage threshold.

[0012] Furthermore, the determination of the risk value based on the probability of occurrence of each risk and the corresponding risk cost includes:

[0013]

[0014] Among them, R risk is the risk value, P i is the probability of occurrence of each risk, C i is the corresponding risk cost.

[0015] Further, determining the gain coefficient based on the input voltage includes:

[0016]

[0017] Among them, V in is the input voltage, V1 is the first voltage threshold, V2 is the second voltage threshold, G1, G2, G3 are the first gain value, the second gain value, and the third gain value respectively, and G1>G2>G3.

[0018] Furthermore, it also includes: when ΔV=|V 01 -V 02 |>V threshold When , an abnormal voltage alarm message is sent to the mobile device, where ΔV is the voltage difference, V 01 and V 02 are the output voltage and input voltage of the DC power supply, V threshold is the voltage threshold.

[0019] The second aspect of the present invention provides a DC system operation auxiliary detection device, including a display screen and a body connected to each other, the body including: an acquisition module, used to obtain the input voltage of the switching handle; a processing module, used to determine the output voltage based on the input voltage and the reference voltage; a monitoring module, used to determine the system state based on the voltage threshold and the state coefficient; an early warning module, used to determine the risk value based on the probability of occurrence of each risk and the corresponding risk cost; the display screen is used to display the output voltage, the system state, and the risk value.

[0020] Furthermore, it also includes: a protective box for accommodating the body; a fixing plate, the fixing plate is detachably mounted at the opening of the protective box, and the display screen is mounted on the fixing plate.

[0021] A third aspect of the present invention provides a storage medium storing a computer program, wherein the computer program implements the steps of the method when executed by a processor.

[0022] A fourth aspect of the present invention provides an electronic device, comprising at least a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method when executing the computer program on the memory.

[0023] The present invention provides a method for auxiliary monitoring of DC system operation, which monitors the voltage condition of a switching handle in real time, calculates the output voltage through the input voltage and displays it through a display screen, so that an operator can check the voltage condition in real time; determines the system state through a voltage threshold and a state coefficient and displays it through a display screen, thereby realizing the inspection of the opening and closing state of the switching handle; determines the risk value through the probability of each risk and the corresponding risk cost and displays it through the display screen, thereby realizing the prediction and reminder of DC system risks, avoiding accidents caused by improper operation or wrong operation of the operator, and ensuring the safe operation of the system.

[0024] The DC system operation auxiliary detection device, storage medium and electronic device in the present invention have all the beneficial effects of the above-mentioned DC system operation auxiliary monitoring method, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 1 A flow chart of a DC system operation auxiliary monitoring method provided by an embodiment of the present invention;

[0027] Figure 2 A first structural diagram of a DC system operation auxiliary monitoring device provided by an embodiment of the present invention;

[0028] Figure 3 A second structural diagram of the auxiliary monitoring device for DC system operation provided by an embodiment of the present invention;

[0029] Figure 4 A third structural diagram of the auxiliary monitoring device for DC system operation provided by an embodiment of the present invention;

[0030] Figure 5This is a structural block diagram of a machine body in a DC system operation auxiliary monitoring device provided in an embodiment of the present invention.

[0031] The above drawings include the following reference numerals:

[0032] 1. Display screen; 2. Protective box; 3. Fixing plate; 4. Voltage collector. DETAILED DESCRIPTION

[0033] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0034] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0035] These and other characteristics of the present disclosure will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the attached drawings.

[0036] It should also be understood that, although the present disclosure has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present disclosure that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0037] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0038] Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of ways with substantially any suitable detailed structure.

[0039] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present disclosure.

[0040] The first aspect of the present invention provides a DC system operation auxiliary monitoring method, combining Figures 1 to 4 As shown, including:

[0041] S100, obtaining the input voltage of the switch handle;

[0042] S200, determining an output voltage based on the input voltage and a reference voltage;

[0043] S300, determining a system state based on a voltage threshold and a state coefficient;

[0044] S400, determining the risk value based on the probability of occurrence of each risk and the corresponding risk cost;

[0045] S500 , displaying the output voltage, the system status, and the risk value through display screen 1 .

[0046] It is understandable that the implementation order of steps S200 to S400 is not unique, and the implementation order of these steps can be determined according to actual needs.

[0047] In step S100, the input voltage of the switching handle is obtained. The input voltage of each switching handle can be collected by the voltage collector 4 to realize the loop monitoring on both sides of the switching handle. The number of voltage collectors 4 should be set according to the number of switching handles, so that the voltage collectors 4 correspond to the switching handles one by one, and the input voltage of each switching handle is collected. The collected voltage data (including the input voltages of multiple switching handles) can be converted into digital signals through analog-to-digital conversion technology to facilitate subsequent processing and display.

[0048] Furthermore, after obtaining the input voltage of the switch handle in step S100, the method further includes: determining a gain coefficient based on the input voltage;

[0049] The step S200, determining the output voltage based on the input voltage and the reference voltage, comprises:

[0050] V out =K·(V in -V ref );

[0051] Among them, V out is the output voltage, K is the gain factor, V in is the input voltage, V ref is the reference voltage.

[0052] Wherein, determining the gain coefficient based on the input voltage includes:

[0053]

[0054] Among them, V inis the input voltage, V1 is the first voltage threshold, V2 is the second voltage threshold, G1, G2, G3 are the first gain value, the second gain value, and the third gain value respectively, and G1>G2>G3.

[0055] When the input voltage is in different voltage ranges, the accuracy of the collected data is ensured by adjusting the gain coefficient. At high voltage, the gain is reduced to prevent signal overload, and at low voltage, the gain is increased to ensure data collection accuracy. This function effectively prevents signal overload or collection distortion, so that the system can still obtain high-precision monitoring data in a complex voltage environment.

[0056] In this way, the obtained output voltage can be directly displayed in real time through the display screen 1, and the operator can view the real-time situation of the output voltage to assist the operator in judging the system status and performing subsequent operations.

[0057] Furthermore, in step 300, determining the system state based on the voltage threshold and the state coefficient includes:

[0058] S=K1·V threshold ;

[0059] Where S is the system state, K1 is the state coefficient, V threshold is the voltage threshold.

[0060] K1 is the state coefficient, which can only take values ​​of 1 or 0. threshold is the voltage threshold, and its value can be determined according to the output voltage value of the charger. When S=1, the system state is normal, indicating that the opening and closing state of the handle of the system meets the set conditions; when S=0, the system state is abnormal, indicating that the opening and closing of the handle does not meet the set conditions, indicating that the DC system may be potentially abnormal; when K1=1 and V threshold ≠1 (usually the voltage threshold is not set to 0). In this case, the value of S usually indicates that an operational problem has occurred and needs to be checked and corrected immediately.

[0061] Furthermore, the step S400, determining the risk value based on the probability of occurrence of each risk and the corresponding risk cost, includes:

[0062]

[0063] Among them, R risk is the risk value, P i is the probability of occurrence of each risk, C i is the corresponding risk cost.

[0064] The probability of each risk occurring can be obtained based on historical data analysis. The corresponding risks of the DC system are classified, the probability of each risk occurring is statistically calculated, and the corresponding risk cost is calculated. The final risk value can play a certain early warning role and is displayed on the display screen 1.

[0065] Furthermore, the DC system operation auxiliary monitoring method further includes:

[0066] When ΔV=|V 01 -V 02 |>V threshold When , an abnormal voltage alarm message is sent to the mobile device, where ΔV is the voltage difference, V 01 and V 02 are the output voltage and input voltage of the DC power supply, V threshold is the voltage threshold.

[0067] When the difference between the voltage value at the output end and the voltage value at the input end of the DC system is greater than the voltage threshold, it means that there is a voltage abnormality problem in the DC system. Mobile devices include mobile phones, computers, etc., and voltage abnormality alarm information can be sent to the mobile device through text messages, the Internet, etc., to promptly remind the operator to perform maintenance. Preferably, the output voltage, the system status, and the risk value information can also be sent to the mobile device so that the operator can understand possible problems, the current status of the system, and the severity of the risk. Even if the operator is not on site, the system status information can be obtained in time, which improves the efficiency and convenience of operation and maintenance, and enables the system to be effectively monitored when unattended.

[0068] The present invention provides a DC system operation auxiliary monitoring method, which monitors the voltage condition of a switching handle in real time, calculates the output voltage through the input voltage and displays it through a display screen 1, so that an operator can check the voltage condition in real time; determines the system state through a voltage threshold and a state coefficient and displays it through the display screen 1, thereby realizing the inspection of the opening and closing state of the switching handle; determines the risk value through the probability of each risk and the corresponding risk cost and displays it through the display screen 1, thereby realizing the prediction and reminder of the DC system risk, avoiding accidents caused by improper operation or wrong operation of the operator, and ensuring the safe operation of the system.

[0069] The second aspect of the present invention provides a DC system operation auxiliary detection device, combined with Figures 1 to 5 As shown, it includes a display screen 1 and a body connected to each other, and the body includes:

[0070] An acquisition module is used to obtain the input voltage of the switching handle;

[0071] a processing module, configured to determine an output voltage based on the input voltage and a reference voltage;

[0072] A monitoring module for determining a system state based on a voltage threshold and a state coefficient;

[0073] The early warning module is used to determine the risk value based on the probability of each risk and the corresponding risk cost;

[0074] The display screen 1 is used to display the output voltage, the system status, and the risk value.

[0075] In one embodiment, the acquisition module specifically includes an acquisition unit and an adaptive gain unit, the acquisition unit is used to obtain voltage data through the voltage collector 4, and the adaptive gain unit is used to determine the gain coefficient based on the input voltage, including:

[0076]

[0077] Among them, V in is the input voltage, V1 is the first voltage threshold, V2 is the second voltage threshold, G1, G2, G3 are the first gain value, the second gain value, and the third gain value respectively, and G1>G2>G3.

[0078] The monitoring module includes a handle marking unit and an opening and closing state checking unit. The handle marking unit is used to identify the state of each switching handle. It can give each switching handle a unique state identification during the switching operation by physical or electronic marking, so that the operator can quickly identify the operation state of each circuit. The opening and closing state checking unit is used to detect the opening and closing state of the switching handle, that is, to determine the system state based on the voltage threshold and state coefficient, including:

[0079] S=K1·V threshold ;

[0080] Where S is the system state, K1 is the state coefficient, V threshold is the voltage threshold.

[0081] In this way, whether the switch handle is opened and closed in place can be determined through the system status.

[0082] The processing module determines the output voltage based on the input voltage and the reference voltage, including:

[0083] V out =K·(V in -V ref );

[0084] Among them, V out is the output voltage, K is the gain factor, V in is the input voltage, V ref is the reference voltage.

[0085] The warning module includes a pressure difference warning unit, a risk warning unit, and a remote reminder unit. The pressure difference warning unit is used to 01 -V 02 |>V threshold When the voltage is abnormal, an alarm message is issued, where ΔV is the voltage difference, V 01 and V 02 are the output voltage and input voltage of the DC power supply, V threshold The risk warning unit is used to determine the risk value based on the probability of occurrence of each risk and the corresponding risk cost, including:

[0086]

[0087] Among them, R risk is the risk value, P i is the probability of occurrence of each risk, C i The risk warning unit can analyze the historical data to obtain the probability of occurrence of each risk and the corresponding risk cost, and prompt the operator of the possibility and impact range of the risk by determining the risk value.

[0088] The remote reminder unit can send information such as output voltage, system status, voltage abnormality alarm information, risk value, etc. to the operator's mobile device via SMS or other means.

[0089] Display screen 1 can display the voltage value of each circuit, and supports item display, and displays the voltage information of each circuit separately according to user needs, so that users can monitor the voltage status of different circuits. It also supports centralized display, and displays the voltage data of all circuits at the same time, so that users can understand the system status.

[0090] Optionally, the DC system operation auxiliary detection device further includes a storage module, specifically including:

[0091] A monitoring data storage unit is used to store voltage data and status information monitored in real time;

[0092] Operation data storage unit, records operator operation records and system logs, supports data backup and recovery;

[0093] Among them, the monitoring data storage unit is specially used to store the real-time monitored voltage data and its related status information. The monitoring data storage unit can record the results of each data collection in the form of a timestamp to ensure that the subsequent data analysis can be traced back to the specific time point. The operation data storage unit is used to record the operator's operation records and system logs, including each parameter adjustment, alarm event and system status change information.

[0094] Optionally, the DC system operation auxiliary detection device also includes a communication module to achieve data communication with external equipment or a monitoring center to support remote monitoring and operation.

[0095] The present invention provides a DC system operation auxiliary monitoring device, which monitors the voltage condition of a switching handle in real time, calculates the output voltage through the input voltage and displays it through a display screen 1, so that an operator can check the voltage condition in real time; determines the system state through a voltage threshold and a state coefficient and displays it through the display screen 1, thereby realizing the inspection of the opening and closing state of the switching handle; determines the risk value through the probability of each risk and the corresponding risk cost and displays it through the display screen 1, thereby realizing the prediction and reminder of the DC system risk, avoiding accidents caused by improper operation or wrong operation of the operator, and ensuring the safe operation of the system.

[0096] Furthermore, the DC system operation auxiliary monitoring device also includes: a protective box 2 for accommodating the body; a fixing plate 3, the fixing plate 3 is detachably mounted at the opening of the protective box 2, and the display screen 1 is mounted on the fixing plate 3.

[0097] In this way, the protective box 2 plays a role in protecting the machine body, and the fixing plate 3 plays a role in fixing the display screen 1, so that the display screen 1 and the machine body are integrated together, which is convenient for installation in the corresponding office area.

[0098] A third aspect of the present invention provides a storage medium storing a computer program, wherein when the computer program is executed by a processor, the steps of implementing the method specifically include:

[0099] S100, obtaining the input voltage of the switch handle;

[0100] S200, determining an output voltage based on the input voltage and a reference voltage;

[0101] S300, determining a system state based on a voltage threshold and a state coefficient;

[0102] S400, determining the risk value based on the probability of occurrence of each risk and the corresponding risk cost;

[0103] S500 , displaying the output voltage, the system status, and the risk value through display screen 1 .

[0104] When the computer program in the storage medium of the present invention is executed by the processor, it can monitor the voltage condition of the switching handle in real time, calculate the output voltage through the input voltage and display it through the display screen 1, so that the operator can check the voltage condition in real time; determine the system state through the voltage threshold and the state coefficient and display it through the display screen 1, thereby realizing the inspection of the opening and closing state of the switching handle; determine the risk value through the probability of occurrence of each risk and the corresponding risk cost and display it through the display screen 1, thereby realizing the prediction and reminder of the DC system risk, avoiding accidents caused by improper operation or wrong operation of the operator, and ensuring the safe operation of the system.

[0105] A fourth aspect of the present invention provides an electronic device, comprising at least a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps of the method when executing the computer program in the memory, specifically comprising:

[0106] S100, obtaining the input voltage of the switch handle;

[0107] S200, determining an output voltage based on the input voltage and a reference voltage;

[0108] S300, determining a system state based on a voltage threshold and a state coefficient;

[0109] S400, determining the risk value based on the probability of occurrence of each risk and the corresponding risk cost;

[0110] S500 , displaying the output voltage, the system status, and the risk value through display screen 1 .

[0111] The computer program stored in the memory of the electronic device of the present invention can, when executed by the processor, monitor the voltage condition of the switching handle in real time, calculate the output voltage through the input voltage and display it through the display screen 1, so that the operator can check the voltage condition in real time; determine the system state through the voltage threshold and the state coefficient and display it through the display screen 1, thereby realizing the inspection of the opening and closing state of the switching handle; determine the risk value through the probability of occurrence of each risk and the corresponding risk cost and display it through the display screen 1, thereby realizing the prediction and reminder of the DC system risk, avoiding accidents caused by improper operation or wrong operation of the operator, and ensuring the safe operation of the system.

[0112] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0113] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0114] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0115] In the embodiments provided in the present application, it should be understood that the disclosed devices / terminal equipment and methods can be implemented in other ways. For example, the device / terminal equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0116] If the integrated module is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned motor torque control method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0117] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A DC system operation auxiliary monitoring method, characterized in that: include: Get the input voltage of the switch handle; determining an output voltage based on the input voltage and a reference voltage; determining a system state based on a voltage threshold and a state coefficient; Determine the risk value based on the probability of each risk and the corresponding risk cost; The output voltage, the system status, and the risk value are displayed on a display screen.

2. The method according to claim 1, characterized in that: After obtaining the input voltage of the switching handle, the method further includes: determining a gain factor based on the input voltage; The step of determining the output voltage based on the input voltage and the reference voltage comprises: V out =K·(V in -V ref ); Among them, V out is the output voltage, K is the gain factor, V in is the input voltage, V ref is the reference voltage.

3. The method according to claim 1, characterized in that The method of determining the system state based on the voltage threshold and the state coefficient includes: S=K1·V threshold ; Where S is the system state, K1 is the state coefficient, V threshold is the voltage threshold.

4. The method according to claim 1, characterized in that The determination of the risk value based on the probability of occurrence of each risk and the corresponding risk cost includes: Among them, R risk is the risk value, P i is the probability of occurrence of each risk, C i is the corresponding risk cost.

5. The method according to claim 2, characterized in that: The step of determining a gain coefficient based on the input voltage comprises: Among them, V in is the input voltage, V1 is the first voltage threshold, V2 is the second voltage threshold, G1, G2, G3 are the first gain value, the second gain value, and the third gain value respectively, and G1>G2>G3.

6. The method according to claim 1, characterized in that Also includes: When ΔV=|V 01 -V 02 |>V threshold When , an abnormal voltage alarm message is sent to the mobile device, where ΔV is the voltage difference, V 01 and V 02 are the output voltage and input voltage of the DC power supply, V threshold is the voltage threshold.

7. A DC system operation auxiliary detection device, characterized in that: The invention comprises a display screen and a body connected to each other, wherein the body comprises: An acquisition module is used to obtain the input voltage of the switching handle; a processing module, configured to determine an output voltage based on the input voltage and a reference voltage; A monitoring module for determining a system state based on a voltage threshold and a state coefficient; The early warning module is used to determine the risk value based on the probability of each risk and the corresponding risk cost; The display screen is used to display the output voltage, the system status, and the risk value.

8. The device according to claim 7, characterized in that Also includes: A protective box, used for accommodating the body; A fixing plate is detachably mounted at the opening of the protection box, and the display screen is mounted on the fixing plate.

9. A storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. An electronic device, comprising at least a memory and a processor, wherein a computer program is stored in the memory, wherein: The processor implements the steps of the method of any one of claims 1 to 6 when executing the computer program on the memory.

Images