Diesel engine speed abnormality detection method, device, equipment and storage medium

Abstract

The application relates to the technical field of generator speed anomaly detection, and discloses a diesel generator speed anomaly detection method, device, equipment and storage medium.The method comprises the following steps: in response to a speed adjustment operation of a target user on a diesel generator, a first voltage signal output by a speed regulation plate of the diesel generator and a speed signal of a speed probe of the diesel generator are acquired; and based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined, wherein the state comprises an electrical signal abnormal state and a diesel generator mechanical abnormal state; the abnormal state of the diesel generator can be determined through the first voltage signal output by the speed regulation plate and the speed signal of the speed probe, which is beneficial to subsequent corresponding professional personnel to quickly handle the fault of the diesel generator and reduces the difficulty of fault handling.

Description

Technical Field

[0001] This invention relates to the field of generator speed abnormality detection technology, and in particular to a method, device, equipment and storage medium for detecting abnormal diesel generator speed. Background Technology

[0002] Most existing diesel generator fault diagnosis technologies are designed for a specific type of open-loop fault, such as generator temperature or pressure.

[0003] In closed-loop control logic, there are many causes of faults that can affect each other. When manually judging faults, there may be multiple situations that lead to the same fault phenomenon, making it impossible to determine the cause of the fault. Summary of the Invention

[0004] Based on this, it is necessary to address the technical problem of difficulty in determining faults in existing diesel generators by proposing a method, device, equipment, and storage medium for detecting abnormal diesel generator speed.

[0005] Firstly, a method for detecting abnormal speed of a diesel generator is provided, the method comprising:

[0006] In response to the target user's speed adjustment operation on the diesel generator, the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator are acquired.

[0007] Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined, wherein the state includes an abnormal electrical signal state and an abnormal mechanical state of the diesel generator.

[0008] Secondly, a diesel generator speed abnormality detection device is provided, the device comprising:

[0009] The acquisition module is used to acquire the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator in response to the target user's speed adjustment operation on the diesel generator.

[0010] An abnormal state determination module is used to determine the abnormal state of the diesel generator based on the first voltage signal and the speed signal, wherein the state includes an electrical signal abnormal state and a diesel generator mechanical abnormal state.

[0011] Thirdly, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-described diesel generator speed abnormality detection method.

[0012] Fourthly, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-described diesel generator speed abnormality detection method.

[0013] The diesel generator speed abnormality detection method proposed in this invention obtains a first voltage signal output by the speed control board and a speed signal from the speed probe of the diesel generator in response to the target user's speed adjustment operation. Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined, wherein the state includes an electrical signal abnormality state and a diesel generator mechanical abnormality state. It can determine the abnormal state of the diesel generator by using the first voltage signal output by the speed control board and the speed signal from the speed probe, which is beneficial for relevant professionals to quickly handle the diesel generator fault and reduces the difficulty of fault handling. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] in:

[0016] Figure 1 This is a flowchart of a diesel generator speed abnormality detection method in one embodiment;

[0017] Figure 2 This is a schematic diagram illustrating the principle of diesel generator speed control in a diesel generator speed anomaly detection method in one embodiment.

[0018] Figure 3 This is a first schematic diagram of the abnormal state analysis of a diesel generator in a diesel generator speed abnormality detection method in one embodiment.

[0019] Figure 4 This is a second analytical schematic diagram of the abnormal state of a diesel generator in a diesel generator speed abnormality detection method in one embodiment;

[0020] Figure 5 This is a structural block diagram of a diesel generator speed abnormality detection device in one embodiment;

[0021] Figure 6 This is a structural block diagram of a computer device in one embodiment;

[0022] Figure 7This is a structural block diagram of a computer device in another embodiment. Detailed Implementation

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] 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, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This application provides a method, apparatus, equipment, and storage medium for detecting abnormal speed of a diesel generator.

[0027] Specifically, the abnormal speed detection device for the diesel generator can be integrated into the target device, which can be a smartphone, tablet, laptop, or desktop computer, but is not limited to these. The target device can connect directly or indirectly to the server via wired or wireless communication. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. This application does not impose any restrictions on these aspects.

[0028] For example, this diesel generator speed abnormality detection device is integrated into a computer device, which communicates with the diesel generator's data acquisition equipment via a network. In response to a user's speed adjustment operation on the diesel generator, the computer device acquires the first voltage signal output from the generator's speed control board and the speed signal from the generator's speed probe. Based on the first voltage signal and the speed signal, it determines the abnormal state of the diesel generator, including electrical signal abnormalities and mechanical abnormalities. This ability to identify the abnormal state of the diesel generator through the first voltage signal output from the speed control board and the speed signal from the speed probe facilitates rapid troubleshooting by relevant professionals and reduces the difficulty of fault handling.

[0029] Please see Figure 1 As shown, Figure 1 A flowchart illustrating a method for detecting abnormal diesel generator speed according to an embodiment of the present invention includes the following steps:

[0030] Step S101: In response to the target user's speed adjustment operation for the diesel generator, acquire the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator.

[0031] It should be noted that the principle of diesel generator speed control is as follows: During normal and stable operation, the diesel generator maintains a fixed speed, which, for a high-speed generator, is approximately 1800 RPM. The generator speed only changes when the external load changes or a fault occurs. Figure 2 As shown, this is a typical positive feedback control system. In the diesel generator speed control system, the command is the load of the diesel generator, and the speed is the signal collected from the diesel generator speed probe. By comparing the data of these two signals, when there is a difference between them, the speed control board outputs a voltage signal to make the actuator change the fuel injection quantity, thereby increasing or decreasing the speed of the diesel generator.

[0032] In this embodiment, the target user can trigger a speed adjustment operation by sending a speed adjustment command to the diesel engine. Simultaneously, in response to the target user's speed adjustment operation on the diesel generator, the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator are obtained.

[0033] Step S102: Based on the first voltage signal and the speed signal, determine the abnormal state of the diesel generator, wherein the state includes an abnormal electrical signal state and an abnormal mechanical state of the diesel generator.

[0034] In this embodiment, for example, by comparing the changes in the first voltage signal and the speed signal, the abnormal state of the diesel generator can be determined.

[0035] In one embodiment, the step of determining the abnormal state of the diesel generator based on the first voltage signal and the speed signal includes:

[0036] Step S201: Perform voltage conversion on the rotation speed signal to obtain a second voltage signal;

[0037] Step S202: Determine the abnormal state of the diesel generator based on the first voltage signal and the second voltage signal.

[0038] In this embodiment, firstly, the speed signal is converted into a voltage signal to obtain a voltage signal, and this voltage signal is used as a second voltage signal. For example, the speed signal is input into a signal-to-voltage converter to obtain the second voltage signal. Then, by comparing the first voltage signal and the second voltage signal, the abnormal state of the diesel generator is determined.

[0039] In one embodiment, the step of determining the abnormal state of the diesel generator based on the first voltage signal and the second voltage signal includes:

[0040] Step S301: Generate an image based on the first voltage signal and the second voltage signal to obtain a signal image;

[0041] Step S302: Perform image analysis on the signal image to obtain the abnormal state of the diesel generator.

[0042] In one embodiment, the signal image is generated based on a programmable logic controller (PLC).

[0043] In one embodiment, the step of performing image analysis on the signal image to obtain the abnormal state of the diesel generator includes:

[0044] Step S401: Perform image analysis based on the signal image to determine whether the first voltage signal lags behind the second voltage signal;

[0045] Step S402: If the first voltage signal leads the second voltage signal, then the abnormal state of the diesel generator is determined to be an electrical signal abnormal state;

[0046] Step S403: If the first voltage signal lags behind the second voltage signal, then the abnormal state of the diesel generator is determined to be a mechanical abnormal state of the diesel generator.

[0047] For example, such as Figure 3As shown, the output signal of the speed control board refers to the first voltage signal. When the first voltage signal leads the second voltage signal corresponding to the speed signal, it means that the first voltage signal first controls the actuator to change the fuel injection. Then, the diesel engine speed fluctuates abnormally. It can be determined that it is an electrical signal, that is, an abnormal electrical signal state. The cause can be further investigated through the front end to find out whether it is a fault of the speed control board or an abnormal load.

[0048] For example, such as Figure 4 As shown, the signal change of the speed control board lags behind the change of the speed signal, that is, the first voltage signal lags behind the second voltage signal. This indicates that the actuator has no signal input, and the electrical signal controlling the change of diesel engine speed has not changed. At this time, the abnormal state of the diesel generator is the mechanical abnormal state of the diesel generator. The change of diesel engine speed is caused by mechanical reasons of the diesel engine, such as fuel injector blockage, actuator jamming, filter dirt, etc. In this case, a mechanical engineer can be arranged to further deal with the cause of the fault.

[0049] In one embodiment, the step of performing image analysis on the signal image to obtain the abnormal state of the diesel generator includes:

[0050] Step S501: Input the signal image into the trained anomaly detection model for image recognition to obtain the abnormal state of the diesel generator output by the anomaly detection model, wherein the anomaly detection model is trained based on a convolutional neural network.

[0051] In one embodiment, after determining the abnormal state of the diesel generator based on the first voltage signal and the speed signal, the method further includes:

[0052] Step S601: Send the signal image and the abnormal status of the diesel generator to the display terminal, wherein the display terminal is used to display the signal image and the abnormal status of the diesel generator on the display screen.

[0053] The display terminal can be a terminal device with an HMI (Human-Machine Interface).

[0054] As an example, the speed signal and the output signal of the speed control board are acquired by the PLC. The PLC is programmed to acquire and compare these two sets of signals in real time. The real-time graphs of the two signals are drawn on the HMI (Human-Machine Interface). By observing the order of change of the two signals, the PLC can give the reason for the fluctuation when the speed fluctuates.

[0055] The diesel generator speed abnormality detection method proposed in this embodiment obtains the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator in response to the speed adjustment operation of the target user. Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined. The state includes electrical signal abnormality and diesel generator mechanical abnormality. It can determine the abnormal state of the diesel generator by using the first voltage signal output by the speed control board and the speed signal of the speed probe, which is beneficial for relevant professionals to quickly handle the fault of the diesel generator and reduces the difficulty of fault handling.

[0056] Please see Figure 5 As shown, in one embodiment, a diesel generator speed abnormality detection device is provided, the device comprising:

[0057] The acquisition module 10 is used to acquire the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator in response to the target user's speed adjustment operation on the diesel generator.

[0058] The abnormal state determination module 20 is used to determine the abnormal state of the diesel generator based on the first voltage signal and the speed signal, wherein the state includes an electrical signal abnormal state and a diesel generator mechanical abnormal state.

[0059] In one embodiment, the abnormal state determination module 20 is used for:

[0060] The rotational speed signal is converted into a voltage signal to obtain a second voltage signal;

[0061] Based on the first voltage signal and the second voltage signal, the abnormal state of the diesel generator is determined.

[0062] In one embodiment, the abnormal state determination module 20 is used for:

[0063] An image is generated based on the first voltage signal and the second voltage signal to obtain a signal image;

[0064] Image analysis is performed on the signal image to determine the abnormal state of the diesel generator.

[0065] In one embodiment, the signal image is generated based on a programmable logic controller.

[0066] In one embodiment, the abnormal state determination module 20 is used for:

[0067] Based on the signal image, image analysis is performed to determine whether the first voltage signal lags behind the second voltage signal;

[0068] If the first voltage signal leads the second voltage signal, then the abnormal state of the diesel generator is determined to be an electrical signal abnormal state.

[0069] If the first voltage signal lags behind the second voltage signal, then the abnormal state of the diesel generator is determined to be a mechanical abnormal state of the diesel generator.

[0070] In one embodiment, the abnormal state determination module 20 is used for:

[0071] The signal image is input into a trained anomaly detection model for image recognition to obtain the abnormal state of the diesel generator output by the anomaly detection model, wherein the anomaly detection model is trained based on a convolutional neural network.

[0072] In one embodiment, the diesel generator speed abnormality detection device is used for:

[0073] The signal image and the abnormal status of the diesel generator are sent to the display terminal, which is used to display the signal image and the abnormal status of the diesel generator on the display screen.

[0074] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 6 As shown, the computer device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile and / or volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The network interface is used to communicate with external clients via a network connection. When the computer program is executed by the processor, it implements the functions or steps of a diesel generator speed anomaly detection method on the server side.

[0075] In one embodiment, a computer device is provided, which may be a client, and its internal structure diagram may be as follows: Figure 7As shown, the computer device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The network interface is used to communicate with an external server via a network connection. When the computer program is executed by the processor, it implements the functions or steps of a diesel generator speed anomaly detection method on the client side.

[0076] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, performs the following steps:

[0077] In response to the target user's speed adjustment operation on the diesel generator, the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator are acquired.

[0078] Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined, wherein the state includes an abnormal electrical signal state and an abnormal mechanical state of the diesel generator.

[0079] The diesel generator speed abnormality detection method proposed in this embodiment obtains the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator in response to the speed adjustment operation of the target user. Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined. The state includes electrical signal abnormality and diesel generator mechanical abnormality. It can determine the abnormal state of the diesel generator by using the first voltage signal output by the speed control board and the speed signal of the speed probe, which is beneficial for relevant professionals to quickly handle the fault of the diesel generator and reduces the difficulty of fault handling.

[0080] In one embodiment, a computer-readable storage medium is provided that stores a computer program, which, when executed by a processor, performs the following steps:

[0081] In response to the target user's speed adjustment operation on the diesel generator, the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator are acquired.

[0082] Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined, wherein the state includes an abnormal electrical signal state and an abnormal mechanical state of the diesel generator.

[0083] The diesel generator speed abnormality detection method proposed in this embodiment obtains the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator in response to the speed adjustment operation of the target user. Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined. The state includes electrical signal abnormality and diesel generator mechanical abnormality. It can determine the abnormal state of the diesel generator by using the first voltage signal output by the speed control board and the speed signal of the speed probe, which is beneficial for relevant professionals to quickly handle the fault of the diesel generator and reduces the difficulty of fault handling.

[0084] It should be noted that the functions or steps that can be implemented by the computer-readable storage medium or computer device described above can be referred to the relevant descriptions on the server side and client side in the foregoing method embodiments. To avoid repetition, they will not be described one by one here.

[0085] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0086] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to 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.

[0087] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A method for detecting abnormal speed of a diesel generator, characterized in that, The method for detecting abnormal diesel generator speed includes: In response to the target user's speed adjustment operation on the diesel generator, the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator are acquired. Based on the first voltage signal and the speed signal, the abnormal state of the diesel generator is determined, wherein the state includes an abnormal electrical signal state and an abnormal mechanical state of the diesel generator; The step of determining the abnormal state of the diesel generator based on the first voltage signal and the speed signal includes: The rotational speed signal is converted into a voltage signal to obtain a second voltage signal; Based on the first voltage signal and the second voltage signal, the abnormal state of the diesel generator is determined; The step of determining the abnormal state of the diesel generator based on the first voltage signal and the second voltage signal includes: An image is generated based on the first voltage signal and the second voltage signal to obtain a signal image; Image analysis is performed on the signal image to determine the abnormal state of the diesel generator; The step of performing image analysis on the signal image to obtain the abnormal state of the diesel generator includes: Based on the signal image, image analysis is performed to determine whether the first voltage signal lags behind the second voltage signal; If the first voltage signal leads the second voltage signal, then the abnormal state of the diesel generator is determined to be an electrical signal abnormal state. If the first voltage signal lags behind the second voltage signal, then the abnormal state of the diesel generator is determined to be a mechanical abnormal state of the diesel generator.

2. The method for detecting abnormal diesel generator speed according to claim 1, characterized in that, The signal image is generated based on a programmable logic controller.

3. The method for detecting abnormal speed of a diesel generator according to any one of claims 1 or 2, characterized in that, The step of determining the abnormal state of the diesel generator based on the first voltage signal and the speed signal further includes: The signal image and the abnormal status of the diesel generator are sent to the display terminal, which is used to display the signal image and the abnormal status of the diesel generator on the display screen.

4. A speed anomaly detection device applying the diesel generator speed anomaly detection method as described in claim 1, characterized in that, The abnormal speed detection device for the diesel generator includes: The acquisition module is used to acquire the first voltage signal output by the speed control board of the diesel generator and the speed signal of the speed probe of the diesel generator in response to the target user's speed adjustment operation on the diesel generator. An abnormal state determination module is used to determine the abnormal state of the diesel generator based on the first voltage signal and the speed signal, wherein the state includes an electrical signal abnormal state and a diesel generator mechanical abnormal state.

5. A computer 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 computer program, it implements the steps of the diesel generator speed abnormality detection method as described in any one of claims 1 to 3.

6. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the diesel generator speed abnormality detection method as described in any one of claims 1 to 3.

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