Nuclear power emergency diesel engine throttle lever opening state monitoring device and method

Abstract

The application discloses a nuclear power emergency diesel engine throttle lever opening state monitoring device and method, and relates to the technical field of nuclear power emergency diesel engine throttle lever opening state monitoring devices. The nuclear power emergency diesel engine throttle lever opening state monitoring device comprises the following: an industrial camera, which is arranged opposite to a nuclear power emergency diesel engine throttle lever opening dial and is used for acquiring image information of the nuclear power emergency diesel engine throttle lever opening dial; and a visual controller, which is connected with the industrial camera and is used for frame-by-frame analysis of the image information to determine whether the nuclear power emergency diesel engine starting process is normal. The change process of the nuclear power emergency diesel engine throttle lever opening pointer is analyzed through image processing, and the determination is more accurate compared with the observation of the human eye. The nuclear power emergency diesel engine starting process can be determined to be normal or not, and the difficulty that the nuclear power emergency diesel engine throttle lever opening signal cannot be synchronously analyzed with other diesel engine digital signals is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of nuclear power technology, and particularly relates to a nuclear power emergency diesel engine throttle lever opening state monitoring device and method. BACKGROUND

[0002] The existing method for monitoring the change of the throttle lever opening pointer of a nuclear power plant is that a test personnel handholds a mobile phone and records a video during the starting process of the diesel engine. The change of the throttle lever opening pointer is obtained by analyzing the video afterwards.

[0003] During the starting and running process of the diesel engine, the noise and vibration are large, and the environment is harsh. The maximum frame rate of the video recorded by the mobile phone is 30Hz. The pointer position is not intuitive by viewing the pictures converted from the video. The data of multiple tests cannot be directly compared and analyzed. SUMMARY

[0004] The present application aims to solve the technical problem of providing a nuclear power emergency diesel engine throttle lever opening state monitoring device and method.

[0005] The technical solution adopted by the present application to solve the technical problem is that a nuclear power emergency diesel engine throttle lever opening state monitoring device is constructed, comprising:

[0006] An industrial camera is arranged opposite to the nuclear power emergency diesel engine throttle lever opening dial, and is used to acquire image information of the nuclear power emergency diesel engine throttle lever opening dial;

[0007] A visual controller is connected with the industrial camera, and is used to analyze the image information frame by frame to determine whether the starting process of the nuclear power emergency diesel engine is normal.

[0008] In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a switch connected with the visual controller, and a server connected with the switch.

[0009] In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a display connected with the visual controller or the server.

[0010] In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a light source installed on or near the industrial camera.

[0011] In some embodiments, the light source comprises an LED light source.

[0012] In some embodiments, the industrial camera and the visual controller are connected through wired or wireless communication.

[0013] The application further discloses a nuclear power emergency diesel engine throttle lever opening state monitoring method applied to the nuclear power emergency diesel engine throttle lever opening state monitoring device.

[0014] Obtaining image information of the nuclear power emergency diesel engine throttle lever opening dial;

[0015] Frame by frame analyzing the image information to determine whether the nuclear power emergency diesel engine starting process is normal.

[0016] In some embodiments, the frame by frame analyzing the image information comprises: analyzing the position of the nuclear power emergency diesel engine throttle lever opening dial pointer in each frame of image, and combining the rotation radius of the nuclear power emergency diesel engine throttle lever opening dial pointer and the dial scale of the nuclear power emergency diesel engine throttle lever opening dial, calculating the reading of the nuclear power emergency diesel engine throttle lever opening dial pointer on each frame of image.

[0017] In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring method further comprises: combining the reading of each frame of image with the photographing time of the image to draw the change curve of the nuclear power emergency diesel engine throttle lever opening dial pointer opening.

[0018] In some embodiments, according to the change curve of the nuclear power emergency diesel engine throttle lever opening dial pointer opening, it is determined whether the nuclear power emergency diesel engine starting process is normal.

[0019] The application has the following beneficial effects: through image processing analysis of the change process of the nuclear power emergency diesel engine throttle lever opening dial pointer, compared with the observation of the human eye, the judgment is more accurate, it can determine whether the nuclear power emergency diesel engine starting process is normal, and solves the difficulty that the nuclear power emergency diesel engine throttle lever opening signal cannot be synchronously analyzed with other diesel engine digital signals. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the application, the application will be further described below in combination with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor. In the drawings:

[0021] Figure 1 is a schematic diagram of the nuclear power emergency diesel engine throttle lever opening state monitoring device in some embodiments of the application;

[0022] Figure 2 is an application schematic diagram of the nuclear power emergency diesel engine throttle lever opening state monitoring device in some embodiments of the application. DETAILED DESCRIPTION

[0023] In order to make the technical features, objectives and effects of the present application clearer, the specific embodiments of the present application will be described in detail below. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the technical solutions, and cannot be understood as indicating that the devices or elements indicated must have a particular direction, therefore, it cannot be understood as a limitation on the present application.

[0024] It should also be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intervening elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, therefore, the features with "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In the following description, specific details are presented to facilitate a thorough understanding of the embodiments of the present application, but it should be understood that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits and methods are omitted to avoid unnecessary details that hinder the description of the present application.

[0026] Referring to Figure 1 and Figure 2 The present application shows a kind of nuclear power emergency diesel engine throttle lever opening state monitoring device, including industrial camera 10 and vision controller 20.

[0027] The industrial camera 10 is arranged opposite to the nuclear power emergency diesel engine throttle lever opening dial 101, and is used to acquire image information of the nuclear power emergency diesel engine throttle lever opening dial 101. The image information can include picture information and video information.

[0028] The visual controller 20 is connected with the industrial camera 10, and is used to analyze the image information frame by frame to determine whether the starting process of the nuclear power emergency diesel engine 100 is normal. The visual controller 20 can be used to supply power for the industrial camera 10, and can control the industrial camera 10 to shoot in real time, and can process and store the image information (which can include picture information and video information) in real time, and can convert the pointer position in the image information into an analog quantity through a visual processing algorithm.

[0029] In some embodiments, the industrial camera 10 can be mounted on a mounting bracket arranged opposite to the nuclear power emergency diesel engine throttle lever opening dial 101, and the industrial camera 10 can be arranged to move along the height direction of the mounting bracket to adjust the height position of the industrial camera 10 and improve its practicability. The parameters of the industrial camera 10 can be as shown in Table 1.

[0030] Table 1

[0031]

[0032] In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a switch 30 connected with the visual controller 20, and a server 40 connected with the switch 30. The server 40 can be used to store image information or processed information. The server 40 can include a cloud server.

[0033] In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a display connected with the visual controller 20 or the server 40, and the display can be used to display graphic information or processed information.

[0034] In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a light source 50 mounted on or near the industrial camera 10. The light source 50 includes an LED light source. The light source 50 is arranged to improve the brightness so as to shoot clear image information. In some embodiments, the nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a lens 60 matched with the industrial camera 10, and different specifications of the lens 60 are configured to acquire clear image information.

[0035] In some embodiments, the industrial camera 10 and the visual controller 20 are connected through wired or wireless communication.

[0036] The nuclear power emergency diesel engine throttle lever opening state monitoring device comprises an industrial camera 10, a visual controller 20 and the like. During the starting process of the nuclear power emergency diesel engine 100, the industrial camera 10 rapidly acquires the image of the nuclear power emergency diesel engine throttle lever opening dial 101, and after the starting of the nuclear power emergency diesel engine 100 is completed, the acquired image is stored in the hard disk of the visual controller 20 in chronological order, and is analyzed frame by frame by the visual controller 20.

[0037] The analysis process is as follows: first, the position of the pointer in the image is identified by an image processing algorithm for each frame of image, and the reading of the pointer on each frame of image is calculated in combination with the rotation radius of the pointer and the dial scale. Then, the reading of each frame of image is combined with the photographing time of the image to draw the change curve of the nuclear power emergency diesel engine throttle lever opening. Finally, whether the starting process of the nuclear power emergency diesel engine 100 is normal is judged according to the nuclear power emergency diesel engine throttle lever opening curve, and the running state of the nuclear power emergency diesel engine 100 is comprehensively judged according to the comparison between the actual speed of the nuclear power emergency diesel engine 100 and the nuclear power emergency diesel engine throttle lever opening.

[0038] According to the change curve of the nuclear power emergency diesel engine throttle lever opening, whether the starting process of the nuclear power emergency diesel engine 100 is normal is judged. During the starting process of the nuclear power emergency diesel engine 100, the nuclear power emergency diesel engine throttle lever opening pointer will change rapidly with the throttle size. By analyzing the change process of the nuclear power emergency diesel engine throttle lever opening pointer, whether the throttle opening of the nuclear power emergency diesel engine 100 is consistent with the speed curve of the nuclear power emergency diesel engine 100 is confirmed, so as to judge whether the starting process of the nuclear power emergency diesel engine 100 is normal. If the throttle opening of the nuclear power emergency diesel engine 100 is consistent with the speed curve of the nuclear power emergency diesel engine 100, the starting process of the nuclear power emergency diesel engine 100 is normal.

[0039] The application further discloses a nuclear power emergency diesel engine throttle lever opening state monitoring method applied to the nuclear power emergency diesel engine throttle lever opening state monitoring device of the above-mentioned embodiment, and the nuclear power emergency diesel engine throttle lever opening state monitoring method comprises:

[0040] The image information of the nuclear power emergency diesel engine throttle lever opening dial 101 is acquired.

[0041] The image information is analyzed frame by frame to judge whether the starting process of the nuclear power emergency diesel engine 100 is normal.

[0042] In some embodiments, the frame-by-frame analysis of the image information comprises: analyzing the position of the nuclear power emergency diesel engine throttle lever opening degree dial 101 pointer in each frame of image, and combining the rotation radius of the nuclear power emergency diesel engine throttle lever opening degree dial 101 pointer and the dial scale of the nuclear power emergency diesel engine throttle lever opening degree dial 101, the reading of the nuclear power emergency diesel engine throttle lever opening degree dial 101 pointer in each frame of image is calculated.

[0043] In some embodiments, the nuclear power emergency diesel engine throttle lever opening degree state monitoring method further comprises: combining the reading of each frame of image with the photographing time of the image to draw a change curve of the nuclear power emergency diesel engine throttle lever opening degree dial 101 pointer opening degree.

[0044] In some embodiments, whether the nuclear power emergency diesel engine 100 starting process is normal is judged according to the change curve of the nuclear power emergency diesel engine throttle lever opening degree dial pointer opening degree. During the starting process of the nuclear power emergency diesel engine 100, the nuclear power emergency diesel engine throttle lever opening degree pointer will change rapidly with the throttle size. By analyzing the change process of the nuclear power emergency diesel engine throttle lever opening degree pointer, it is confirmed whether the nuclear power emergency diesel engine 100 throttle opening degree is consistent with the nuclear power emergency diesel engine 100 speed curve, so as to judge whether the nuclear power emergency diesel engine 100 starting process is normal. If the nuclear power emergency diesel engine 100 throttle opening degree is consistent with the nuclear power emergency diesel engine 100 speed curve, the nuclear power emergency diesel engine 100 starting process is normal.

[0045] It can be understood that, according to the current operation status of the nuclear power emergency diesel engine 100, the nuclear power emergency diesel engine throttle lever opening degree dial pointer will change rapidly with the throttle size during the starting process of the nuclear power emergency diesel engine 100. The original diesel engine throttle opening degree pointer is a mechanical structure and cannot upload digital quantity. The present application analyzes the change process of the nuclear power emergency diesel engine throttle lever opening degree pointer through image processing, which is more accurate than eye observation, and can judge whether the nuclear power emergency diesel engine 100 starting process is normal, solving the difficulty that the nuclear power emergency diesel engine throttle lever opening degree signal cannot be analyzed synchronously with other diesel engine digital signals.

[0046] It can be understood that the above embodiments only express the preferred embodiments of the present application, which are described in detail and specifically, but cannot be understood as a limitation on the scope of the patent of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which all belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. A device for monitoring the throttle opening status of a nuclear power emergency diesel engine, characterized in that, The method comprises the following steps: An industrial camera (10) is arranged opposite to a nuclear power emergency diesel engine throttle lever opening dial (101) to obtain image information of the nuclear power emergency diesel engine throttle lever opening dial (101); A visual controller (20) is connected with the industrial camera (10) to analyze the image information frame by frame to determine whether the starting process of a nuclear power emergency diesel engine (100) is normal. The nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a switch (30) connected with the visual controller (20) and a server (40) connected with the switch (30). The nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a light source (50) installed on or near the industrial camera (10), and the light source (50) comprises an LED light source.

2. The nuclear emergency diesel engine throttle lever position monitoring device according to claim 1, characterized by The nuclear power emergency diesel engine throttle lever opening state monitoring device further comprises a display connected with the visual controller (20) or the server (40).

3. The nuclear emergency diesel engine throttle lever position monitoring device according to claim 1, characterized by The industrial camera (10) and the visual controller (20) are connected through wired or wireless communication.

4. A method for monitoring the state of the opening degree of the throttle lever of the emergency diesel engine of a nuclear power plant, applied to the device for monitoring the state of the opening degree of the throttle lever of the emergency diesel engine of a nuclear power plant according to any one of claims 1 to 3, characterized in that, The method comprises the following steps: Obtaining image information of the nuclear power emergency diesel engine throttle lever opening dial (101); Analyzing the image information frame by frame to determine whether the starting process of a nuclear power emergency diesel engine (100) is normal.

5. The nuclear emergency diesel engine throttle lever position status monitoring method according to claim 4, characterized by, The step of analyzing the image information frame by frame comprises the following steps:

6. The nuclear emergency diesel engine throttle lever position status monitoring method according to claim 4, characterized by, Analyzing the position of a nuclear power emergency diesel engine throttle lever opening dial (101) pointer in each frame of image, and combining the rotation radius of the nuclear power emergency diesel engine throttle lever opening dial (101) pointer and the dial scale of the nuclear power emergency diesel engine throttle lever opening dial (101) to calculate the reading of the nuclear power emergency diesel engine throttle lever opening dial (101) pointer in each frame of image.

7. The nuclear emergency diesel engine throttle lever position status monitoring method according to claim 6, characterized by, The method further comprises the following steps: Combining the reading of each frame of image with the photographing time of the image to draw a variation curve of the nuclear power emergency diesel engine throttle lever opening dial (101) pointer opening. Determining whether the starting process of a nuclear power emergency diesel engine (100) is normal according to the variation curve of the nuclear power emergency diesel engine throttle lever opening dial (101) pointer opening.

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