A switch cabinet condensation monitoring method, device, electronic equipment and storage medium

Abstract

The present application provides a switchgear condensation monitoring method, device, electronic device, and storage medium, relating to the field of power monitoring technology. The method utilizes a laser to scan the condensation monitoring area on the top of the switchgear. The laser generates different types of optical signals based on the surface state of the condensation monitoring area, receives the optical signals, and collects light intensity information of the optical signals to determine whether condensation is present in the condensation monitoring area. The method also detects the first reception time of mirror-reflected light and the second reception time of refracted light, as well as the incident angle of the mirror-reflected light and the refraction angle of the refracted light, and determines the thickness of water droplets. Operation and maintenance responses are then prioritized based on whether condensation is present in the condensation monitoring area and the thickness of the water droplets. Thus, by collecting the intensity of reflected light and calculating the thickness of water droplets, the condensation situation inside the switchgear can be accurately reflected, improving the accuracy of condensation monitoring while also providing comprehensive early warnings and facilitating efficient maintenance.

Description

Technical Field

[0001] The present application relates to the field of power monitoring technology, and in particular to a switch cabinet condensation monitoring method, device, electronic equipment and storage medium. Background Art

[0002] Switchgear plays a vital role in the stable operation of power systems. The stability of its internal environment is directly related to the safety and lifespan of power equipment. Condensation, a common problem within switchgear, can lead to serious consequences such as short circuits in electrical equipment and degradation of insulation performance. Therefore, accurate warning and timely treatment of condensation are key to ensuring reliable power system operation.

[0003] Currently, condensation is primarily determined by whether temperature and humidity exceed safety thresholds. However, the conditions for condensation are complex and do not simply correlate with temperature or humidity. Existing methods that blindly determine temperature and humidity safety thresholds fail to accurately determine the degree of condensation risk at the current temperature and humidity, resulting in suboptimal judgment. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a switch cabinet condensation monitoring method, device, electronic equipment and storage medium, which can accurately reflect the occurrence of condensation inside the switch cabinet by collecting the two dimensions of reflected light intensity and calculating the thickness of water droplets, thereby improving the accuracy of condensation monitoring.

[0005] In a first aspect, an embodiment of the present application provides a switch cabinet condensation monitoring method, the method comprising the following steps:

[0006] The condensation monitoring area on the top of the switchgear is scanned using a laser. The laser generates different types of optical signals depending on the surface condition of the condensation monitoring area. The optical signals include diffusely reflected light, specularly reflected light generated by irradiating water droplets, and refracted light transmitted through the water droplets.

[0007] receiving the optical signal, collecting light intensity information of the optical signal, detecting a first reception time of the mirror-reflected light and a second reception time of the refracted light, as well as an incident angle of the mirror-reflected light and a refraction angle of the refracted light;

[0008] Based on the light intensity information, it is determined whether condensation occurs in the condensation monitoring area, and the thickness of the water droplets is determined based on the first receiving time, the second receiving time, the incident angle, and the refraction angle; and operation and maintenance responses of different priorities are performed according to whether condensation occurs in the condensation monitoring area and the thickness of the water droplets.

[0009] In some embodiments, scanning the condensation monitoring area on the top of the switch cabinet using a laser includes the following steps:

[0010] Pre-select a condensation monitoring area on the top of the switch cabinet, and grid the condensation monitoring area into multiple sub-areas;

[0011] A laser source with a set power is selected to perform laser scanning on the condensation monitoring area in a plane light form to evenly cover each of the divided sub-areas.

[0012] In some embodiments, the light intensity information of the optical signal is collected in the following manner:

[0013] The light intensity of the laser scanning area per unit time is expressed by the following matrix:

[0014]

[0015] The condensation monitoring area is divided into mn sub-areas with m rows and n columns, wherein the sub-area in the laser scanning area within a unit time is represented as S 11 -S xy , I xy Indicates that the sub-region is S xy Light intensity;

[0016] Calculate the mean of matrix A And calculate the mean of each element in matrix A The squared difference And calculate the average value of the square difference to get the variance of matrix A It represents the average light intensity of the laser scanning area per unit time.

[0017] In some embodiments, determining whether condensation occurs in the condensation monitoring area based on the light intensity information includes the following steps:

[0018] If the average light intensity of the laser scanning area within the unit time is greater than the set light intensity threshold, it is determined that condensation has occurred in the laser scanning area within the unit time;

[0019] Count the number of sub-areas contained in all condensation laser scanning areas;

[0020] The condensation range of the switch cabinet is calculated based on the counted number of sub-areas where condensation occurs and the number of all sub-areas divided into the condensation monitoring area.

[0021] In some embodiments, determining the thickness of the water droplet based on the first receiving time, the second receiving time, the incident angle, and the refraction angle comprises the following steps:

[0022] calculating a time difference between the mirror-reflected light and the refracted light according to the first receiving time and the second receiving time, and determining a propagation time of the laser in the water droplet based on the time difference;

[0023] Determining the propagation distance of the laser in the water droplets according to the propagation time and propagation speed of the laser in the water droplets;

[0024] The thickness of the water drop is determined according to the propagation distance and the refraction angle.

[0025] In some embodiments, the emission angle of the laser is determined as the incident angle of the mirror-reflected light, and the refraction angle of the refracted light is determined based on the incident angle of the mirror-reflected light and the refractive index of water; the propagation time of the laser in the water droplets is calculated by the following formula t=(t2-t1) / 2, wherein t1 represents the first receiving time and t2 represents the second receiving time; the thickness of the water droplets is calculated by the formula d=s*cosα, wherein s represents the propagation distance and α represents the refraction angle, and the refraction angle satisfies n1sinβ=n2sinα, n1 represents the refractive index of air, n2 represents the refractive index of water, and β represents the incident angle of the mirror-reflected light.

[0026] In some embodiments, performing operation and maintenance responses of different priorities based on whether condensation occurs in the condensation monitoring area and the thickness of water droplets includes the following steps:

[0027] When the condensation range of the switch cabinet is less than the set first threshold and the water drop thickness is less than the set second threshold, a low-priority operation and maintenance response is performed;

[0028] When the condensation range of the switch cabinet is greater than the set first threshold and the water drop thickness is less than the set second threshold, a medium-priority operation and maintenance response is determined;

[0029] When the condensation range of the switch cabinet is less than the set first threshold and the water drop thickness is greater than the set second threshold, a high-priority operation and maintenance response is determined.

[0030] In a second aspect, an embodiment of the present application provides a switch cabinet condensation monitoring device, the device comprising:

[0031] A scanning module, configured to scan the condensation monitoring area on the top of the switchgear using a laser; wherein the laser generates different types of optical signals according to the surface condition of the condensation monitoring area, including diffusely reflected light, specularly reflected light generated by irradiating water droplets, and refracted light passing through the water droplets;

[0032] an acquisition module, configured to receive the optical signal, collect light intensity information of the optical signal, detect a first reception time of the mirror-reflected light and a second reception time of the refracted light, as well as an incident angle of the mirror-reflected light and a refraction angle of the refracted light;

[0033] A judgment module is used to judge whether condensation occurs in the condensation monitoring area based on the light intensity information, and to determine the thickness of water droplets based on the first receiving time, the second receiving time, the incident angle, and the refraction angle; and to perform operation and maintenance responses of different priorities according to whether condensation occurs in the condensation monitoring area and the thickness of the water droplets.

[0034] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a processor, a memory, and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the switch cabinet condensation monitoring method as described in any one of the first aspects are performed.

[0035] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the switch cabinet condensation monitoring method described in any one of the above-mentioned first aspects are executed.

[0036] The present application discloses a switchgear condensation monitoring method, device, electronic device, and storage medium. The method utilizes a laser to scan a condensation monitoring area on the top of the switchgear. The laser generates different types of optical signals based on the surface condition of the condensation monitoring area, including diffusely reflected light, specularly reflected light generated by irradiating a water droplet surface, and refracted light transmitted through the water droplet. The method receives the optical signals and collects light intensity information from the optical signals, detecting a first reception time for the specularly reflected light, a second reception time for the refracted light, and the incident angle of the specularly reflected light and the refraction angle of the refracted light. The method determines whether condensation is present in the condensation monitoring area based on the light intensity information, and determines the thickness of the water droplets based on the first reception time, the second reception time, the incident angle, and the refraction angle. Furthermore, the method provides an operation and maintenance response with different priorities based on whether condensation is present in the condensation monitoring area and the thickness of the water droplets. By collecting the reflected light intensity and calculating the water droplet thickness, the method accurately reflects the occurrence of condensation within the switchgear, improving the accuracy of condensation monitoring while also providing comprehensive early warnings and facilitating efficient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A flow chart of the switch cabinet condensation monitoring method according to an embodiment of the present application is shown;

[0039] Figure 2 A schematic diagram showing a gridded condensation monitoring area according to an embodiment of the present application is shown;

[0040] Figure 3 A schematic diagram comparing the light intensity distribution when condensation occurs and when no condensation occurs on the top of the switch cabinet according to an embodiment of the present application is shown;

[0041] Figure 4 A schematic diagram showing the specular reflection light generated by irradiating the surface of water droplets and the refracted light passing through the water droplets according to an embodiment of the present application;

[0042] Figure 5 A schematic diagram showing the comparison of no condensation, fine mist condensation, and large water droplet condensation on the top of the switchgear according to the embodiment of the present application is shown;

[0043] Figure 6 The figure shows a schematic structural diagram of a switch cabinet condensation monitoring device according to an embodiment of the present application;

[0044] Figure 7 The figure shows a structural block diagram of the electronic device described in the embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of illustration and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts can be implemented out of sequence, and steps without logical context can be reversed or implemented simultaneously. In addition, those skilled in the art, under the guidance of the contents of this application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0046] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0047] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0048] In view of the technical problems raised by the background technology, the present application provides a switch cabinet condensation monitoring method, device, electronic equipment and storage medium. By collecting the two dimensions of reflected light intensity and calculating the thickness of water droplets, it can accurately reflect the occurrence of condensation inside the switch cabinet and improve the accuracy of condensation monitoring.

[0049] See the instructions attached Figure 1 , an embodiment of the present application provides a switch cabinet condensation monitoring method, comprising the following steps:

[0050] S1. Scanning the condensation monitoring area on the top of the switchgear using a laser; wherein the laser generates different types of optical signals according to the surface condition of the condensation monitoring area, including diffusely reflected light, specularly reflected light generated by irradiating water droplets, and refracted light passing through the water droplets;

[0051] S2. Receive the optical signal, collect light intensity information of the optical signal, detect a first reception time of the mirror-reflected light and a second reception time of the refracted light, as well as an incident angle of the mirror-reflected light and a refraction angle of the refracted light;

[0052] S3. Determine whether condensation occurs in the condensation monitoring area based on the light intensity information, and determine the thickness of the water droplets based on the first receiving time, the second receiving time, the incident angle, and the refraction angle; and perform operation and maintenance responses of different priorities according to whether condensation occurs in the condensation monitoring area and the thickness of the water droplets.

[0053] Specifically, in step S1, a condensation monitoring area can be selected in advance on the top of the switch cabinet, and the condensation monitoring area can be gridded and divided into multiple sub-areas; a laser source with a set power is selected to perform laser scanning on the condensation monitoring area in the form of planar light to evenly cover each divided sub-area.

[0054] See the instructions attached Figure 2In one embodiment, a certain area on the top of the switch cabinet is first selected as the laser scanning area, namely the condensation monitoring area. This selection is based on the fact that condensation inside the switch cabinet is usually more likely to occur at the top and other locations, and is relatively convenient for laser scanning operations. The selected top area is divided into mn sub-areas with m rows and n columns at intervals of 1 cm, which correspond to S 11 -S xy This grid-based division allows laser scanning to more specifically and systematically inspect each small area, facilitating subsequent precise location and analysis of condensation at different locations. Preferably, a red laser with a power between 5mW and 10mW is used for scanning. This power range ensures that the laser has sufficient intensity to penetrate potential interference factors such as moisture and dust within the switchgear, allowing the light to effectively generate detectable reflected and refracted light in each area. At the same time, the laser power must be kept low to avoid potential damage to electrical components within the switchgear, such as localized overheating and photochemical effects. Scanning with a planar beam ensures that the laser beam covers each divided sub-area more evenly during the scanning process, making the scanning results more accurate and repeatable. Compared to other laser beam types, planar beams can reduce over- or under-scanning of certain areas due to focusing or diverging light, thereby improving the reliability of condensation detection throughout the scanning process. The scanning rate can be set according to application requirements, for example, to 1 column per second. If the scanning rate is too fast, the optical signal collection of some sub-areas may be incomplete or inaccurate; if the scanning rate is too slow, the entire scanning process will take too long, which is not conducive to timely obtaining condensation conditions and making corresponding operation and maintenance decisions.

[0055] In step S2, the image acquisition unit can be used to collect the diffuse reflection light emitted by the laser through the scanning area, the mirror reflection light generated by the laser hitting the surface of the water droplets, and the refracted light passing through the water droplets. Figure 3 When the switchgear is not condensing, the laser light is diffusely reflected due to dust and fine particles in the air and the rough metal surface. Diffusely reflected light is characterized by light scattering in all directions, with a relatively uniform intensity distribution but weak overall intensity. When condensation occurs, the laser light is specularly reflected from the surface of the water droplets. This specular reflection is highly directional and has a relatively concentrated intensity. Furthermore, when condensation occurs, the laser light penetrates the water droplets, causing refraction, generating refracted light. The propagation path of the refracted light varies depending on factors such as the size and refractive index of the water droplets.

[0056] In one embodiment, the light intensity information of the light signal collected by the image collection unit is calculated in the following manner:

[0057] The light intensity of the laser scanning area within a unit time (for example, one second) can be expressed in a matrix as:

[0058]

[0059] Among them, the sub-area in the laser scanning area within the unit time is represented as S 11 -S xy , I xy Indicates that the sub-region is S xy light intensity; at this time, the average light intensity of the laser scanning area within a unit time (for example, one second) can be represented by the variance of matrix A. Among them, the variance is a statistic that reflects the degree of discreteness of a set of data. In this application, the variance of matrix A represents the dispersion of the light intensity values ​​within the laser scanning area within the unit time relative to the average light intensity. If the variance is small, it means that the light intensity values ​​are relatively uniform in each area, which means that the medium state in the area is relatively consistent; conversely, if the variance is large, it means that there are large differences in the light intensity values ​​between different areas, which means that there are some factors in the area that will cause uneven light intensity distribution, such as the occurrence of condensation.

[0060] When calculating the variance of matrix A, first calculate the mean of matrix A Next, calculate the square of the difference between each element in matrix A and the mean Finally, the average of these squared differences is calculated to obtain the variance of matrix A

[0061] In addition, in the present application, in addition to collecting the light intensity information of the light signal, the image acquisition unit also detects the first receiving time t1 of the mirror reflected light and the second receiving time t2 of the refracted light, and determines the reflection angle corresponding to the detection light according to the incident angle set by the laser detection light, and determines the corresponding refraction angle according to the incident angle of the detection light.

[0062] In step S3, the determining whether condensation occurs in the condensation monitoring area based on the light intensity information includes the following steps: if the average light intensity of the laser scanning area within a unit time is greater than a set light intensity threshold, determining whether condensation occurs in the laser scanning area within the unit time; counting the number of sub-areas contained in all condensed laser scanning areas; and calculating the condensation range of the switch cabinet based on the counted number of sub-areas where condensation occurs and the number of all sub-areas divided in the condensation monitoring area.

[0063] In one embodiment, based on the understanding that condensation can cause changes in light intensity distribution and extensive experimentation, a light intensity threshold is set at 1.5. When the average light intensity of the laser scanning area within a unit time is greater than 1.5, condensation has occurred in the laser scanning area within that unit time. After completing a full scan of the condensation monitoring area on the top of the switchgear, the number of sub-areas within the laser scanning area during each unit time where condensation has occurred is counted. The condensation range of the switchgear is then determined based on the ratio of the number of bright sub-areas (sub-areas experiencing condensation) to the total number of sub-areas in the condensation monitoring area on the top of the switchgear, providing an important basis for subsequent operation and maintenance. For example, if the total number of sub-areas in the condensation monitoring area on the top of the switchgear is m*n=100*100=10,000 and the number of sub-areas experiencing condensation is 500, then the condensation range of the switchgear is 500 / 10,000=5%.

[0064] See the instructions attached Figure 4 When calculating the thickness of a water droplet, the image acquisition unit is responsible for receiving the reflected light from the laser detection light source after it is reflected from the water droplet surface. When the laser detection light strikes the water droplet surface, a portion of the light is reflected according to the law of reflection, forming the target reflected light. This reflected light is then captured by the image acquisition unit, and its corresponding reception time t1 is recorded, i.e., the first reception time. At the same time, a portion of the detection light is refracted through the water droplet surface into the water droplet interior, reflected within the water droplet, and then refracted back through the water surface to form the target refracted light. This complex path of refracted light is also received by the image acquisition unit, and its corresponding reception time t2, i.e., the second reception time, is determined.

[0065] Furthermore, the propagation time of the detection light in the water droplet is determined based on the difference between the reception time t1 corresponding to the target reflected light and the reception time t2 corresponding to the target refracted light. Based on the propagation time and propagation speed of the detection light in the water droplet, the propagation distance s = (t2 - t1)v of the detection light in the water droplet and the one-way propagation distance of 0.5s are determined (here, the distance the detection light travels through the water droplet after being refracted into the water droplet is considered equal to the distance the detection light travels through the water droplet after being reflected and then refracted out of the water droplet). The propagation speed v of the optical signal in water is 2.25 × 108 m / s. Furthermore, based on the refractive index of air (the air refractive index is set to 1 in engineering optics), the refractive index of water (the water refractive index is 1.3330), and the incident angle β of the laser source detection light, the corresponding refraction angle α of the detection light is determined: n1sinβ = n2sinα, where n1 represents the refractive index of air, which is set to 1 here, and n2 represents the refractive index of water, which is set to 1.3330 here. According to the refraction angle α and the propagation distance s, the water drop thickness information is determined: cos α = d / 0.5s.

[0066] After determining the condensation range and water drop thickness of the switchgear, the corresponding judgment results and related detailed data are uploaded to the host computer. After receiving this information, the host computer will display it to the operation and maintenance personnel in an intuitive manner, such as generating a condensation monitoring report and drawing a condensation distribution map. Based on this information, the operation and maintenance personnel can promptly formulate and implement appropriate maintenance measures, such as activating dehumidification equipment and checking the status of electrical components, to ensure the safe and stable operation of the switchgear and effectively prevent problems caused by condensation.

[0067] In one embodiment, the operation and maintenance response levels are divided into three priority levels: low, medium, and high. Specifically, when the condensation range of the switchgear is less than a set first threshold and the water drop thickness is less than a set second threshold, a low-priority operation and maintenance response is performed; when the condensation range of the switchgear is greater than the set first threshold and the water drop thickness is less than the set second threshold, a medium-priority operation and maintenance response is determined; and when the condensation range of the switchgear is less than the set first threshold and the water drop thickness is greater than the set second threshold, a high-priority operation and maintenance response is determined.

[0068] See the instructions attached Figure 5 For example, set the first threshold for the condensation range of the switchgear to 25%, and the second threshold for the water drop thickness to 2mm. When the condensation range of the switchgear is less than 25% and the water drop thickness is less than 2mm, there are no obvious bright areas in the condensation monitoring area on the top of the switchgear, condensation has not occurred, and no system alarm is triggered. When the condensation range of the switchgear is greater than 25% and the water drop thickness is less than 2mm, it indicates that large areas of fine water mist are present in the condensation monitoring area on the top of the switchgear, marking the initial stage of condensation formation. An alarm is triggered and the condensation occurrence is recorded. When the condensation range of the switchgear is less than 25% and the water drop thickness is greater than 2mm, large water droplets are formed in the condensation monitoring area on the top of the switchgear, marking the late stage of condensation. The system triggers an alarm and records the occurrence, and sends a text message to notify operation and maintenance personnel to handle it promptly.

[0069] It can be seen that the switch cabinet condensation monitoring method provided in this application can more accurately monitor and identify different forms of condensation phenomena in the switch cabinet by collecting the two dimensions of reflected light intensity and calculating the thickness of water droplets, and promptly notify the operation and maintenance personnel to take corresponding maintenance measures to ensure the normal operation of the switch cabinet and effectively prevent various electrical faults caused by condensation.

[0070] Based on the same inventive concept, a switch cabinet condensation monitoring device is also provided in an embodiment of the present application. Since the principle of solving the problem by the device in the embodiment of the present application is similar to the above-mentioned switch cabinet condensation monitoring method, device, electronic device and storage medium in the embodiment of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0071] As the instruction manual Figure 6As shown, the present application also provides a switch cabinet condensation monitoring device, the device comprising:

[0072] Scanning module 601 is configured to scan the condensation monitoring area on the top of the switchgear using a laser. The laser generates different types of optical signals based on the surface condition of the condensation monitoring area. The optical signals include diffusely reflected light, specularly reflected light generated by irradiating water droplets, and refracted light transmitted through the water droplets.

[0073] an acquisition module 602 for receiving the optical signal, collecting light intensity information of the optical signal, detecting a first reception time of the mirror-reflected light and a second reception time of the refracted light, as well as an incident angle of the mirror-reflected light and a refraction angle of the refracted light;

[0074] The judgment module 603 is used to judge whether condensation occurs in the condensation monitoring area based on the light intensity information, and to determine the thickness of water droplets based on the first receiving time, the second receiving time, the incident angle, and the refraction angle; and to perform operation and maintenance responses of different priorities according to whether condensation occurs in the condensation monitoring area and the thickness of the water droplets.

[0075] In some embodiments, the scanning module 601 uses a laser to scan the condensation monitoring area on the top of the switch cabinet, including: pre-selecting a condensation monitoring area on the top of the switch cabinet, and gridding the condensation monitoring area to divide it into multiple sub-areas; selecting a laser source with a set power to perform laser scanning on the condensation monitoring area in the form of planar light to evenly cover each divided sub-area.

[0076] In some embodiments, the acquisition module 602 acquires the light intensity information of the light signal, including: representing the light intensity of the laser scanning area within a unit time by the following matrix:

[0077]

[0078] The condensation monitoring area is divided into mn sub-areas with m rows and n columns, wherein the sub-area in the laser scanning area within a unit time is represented as S 11 -S xy , I xy Indicates that the sub-region is S xy Light intensity;

[0079] Calculate the mean of matrix A And calculate the mean of each element in matrix A The squared difference And calculate the average value of the square difference to get the variance of matrix A It represents the average light intensity of the laser scanning area per unit time.

[0080] In some embodiments, the judgment module 603 judges whether condensation occurs in the condensation monitoring area based on the light intensity information, including: if the average light intensity of the laser scanning area within the unit time is greater than the set light intensity threshold, judging that condensation occurs in the laser scanning area within the unit time; counting the number of sub-areas contained in all condensed laser scanning areas; and calculating the condensation range of the switch cabinet based on the counted number of sub-areas where condensation occurs and the number of all sub-areas divided by the condensation monitoring area.

[0081] In some embodiments, the judgment module 603 determines the thickness of the water droplets based on the first receiving time, the second receiving time, the incident angle and the refraction angle, including: calculating the time difference between the mirror reflected light and the refracted light according to the first receiving time and the second receiving time, and determining the propagation time of the laser in the water droplets based on the time difference; determining the propagation distance of the laser in the water droplets according to the propagation time and propagation speed of the laser in the water droplets; and determining the thickness of the water droplets according to the propagation distance and the refraction angle. In which, the emission angle of the laser is determined as the incident angle of the mirror-reflected light, and the refraction angle of the refracted light is determined according to the incident angle of the mirror-reflected light and the refractive index of water; the propagation time of the laser in the water droplets is calculated by the following formula t=(t2-t1) / 2, wherein t1 represents the first receiving time and t2 represents the second receiving time; the thickness of the water droplets is calculated by the formula d=s*cosα, wherein s represents the propagation distance, α represents the refraction angle, and the refraction angle satisfies n1sinβ=n2sinα, n1 represents the refractive index of air, n2 represents the refractive index of water, and β represents the incident angle of the mirror-reflected light.

[0082] In some embodiments, the judgment module 603 performs operation and maintenance responses of different priorities based on whether condensation occurs in the condensation monitoring area and the thickness of the water droplets, including: when the condensation range of the switch cabinet is less than the set first threshold and the thickness of the water droplets is less than the set second threshold, a low-priority operation and maintenance response is performed; when the condensation range of the switch cabinet is greater than the set first threshold and the thickness of the water droplets is less than the set second threshold, a medium-priority operation and maintenance response is determined; when the condensation range of the switch cabinet is less than the set first threshold and the thickness of the water droplets is greater than the set second threshold, a high-priority operation and maintenance response is determined.

[0083] The present application provides a switchgear condensation monitoring device. A scanning module utilizes a laser to scan a condensation monitoring area on the top of the switchgear. The laser generates different types of optical signals based on the surface condition of the condensation monitoring area, including diffusely reflected light, specularly reflected light generated by irradiating a water droplet surface, and refracted light transmitted through the water droplet. An acquisition module receives the optical signals and collects light intensity information from the optical signals, detecting a first reception time for the specularly reflected light, a second reception time for the refracted light, and the incident angle of the specularly reflected light and the refraction angle of the refracted light. A judgment module determines whether condensation is present in the condensation monitoring area based on the light intensity information and determines the thickness of the water droplets based on the first reception time, the second reception time, the incident angle, and the refraction angle. Furthermore, a priority level of operation and maintenance response is provided based on whether condensation is present in the condensation monitoring area and the thickness of the water droplets. Thus, by collecting the intensity of reflected light and calculating the water droplet thickness, the device accurately reflects the occurrence of condensation within the switchgear, improving the accuracy of condensation monitoring while also providing comprehensive early warnings and facilitating efficient maintenance.

[0084] Based on the same concept of the present invention, the specification Figure 7 As shown, an embodiment of the present application provides a structure of an electronic device 700, which includes: at least one processor 701, at least one network interface 704 or other user interface 703, a memory 705, and at least one communication bus 702. The communication bus 702 is used to achieve connection and communication between these components. The electronic device 700 optionally includes a user interface 703, including a display (for example, a touch screen, LCD, CRT, holographic imaging (Holographic) or projection (Projector), etc.), a keyboard or a pointing device (for example, a mouse, trackball (trackball), touchpad or touch screen, etc.).

[0085] The memory 705 may include a read-only memory and a random access memory, and provides instructions and data to the processor 701. A portion of the memory 705 may also include a non-volatile random access memory (NVRAM).

[0086] In some embodiments, the memory 705 stores the following elements, protectable modules or data structures, or a subset or extended set thereof:

[0087] Operating system 7051, including various system programs for implementing various basic services and processing hardware-based tasks;

[0088] The application module 7052 includes various application programs, such as a launcher, a media player, a browser, etc., which are used to implement various application services.

[0089] In an embodiment of the present application, by calling the program or instructions stored in the memory 705, the processor 701 is used to execute steps in a switch cabinet condensation monitoring method, device, electronic device and storage medium. By collecting the two dimensions of reflected light intensity and calculating the thickness of water droplets, it can accurately reflect the occurrence of condensation inside the switch cabinet and improve the accuracy of condensation monitoring.

[0090] The present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is run by a processor, the steps in the switch cabinet condensation monitoring method are executed.

[0091] Specifically, the storage medium can be a general storage medium, such as a mobile disk, a hard disk, etc. When the computer program on the storage medium is run, the above-mentioned switch cabinet condensation monitoring method can be executed.

[0092] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, 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 communication interface, the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0093] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0094] In addition, each functional unit in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0095] If the function 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 technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0096] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above embodiments within the technical scope disclosed in the present application, or replace some of the technical features therein with equivalents. However, these modifications, changes, 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. They should all be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A switch cabinet condensation monitoring method, characterized in that: The method comprises the following steps: The condensation monitoring area on the top of the switchgear is scanned using a laser. The laser generates different types of optical signals depending on the surface condition of the condensation monitoring area. The optical signals include diffusely reflected light, specularly reflected light generated by irradiating water droplets, and refracted light transmitted through the water droplets. receiving the optical signal, collecting light intensity information of the optical signal, detecting a first reception time of the mirror-reflected light and a second reception time of the refracted light, as well as an incident angle of the mirror-reflected light and a refraction angle of the refracted light; Based on the light intensity information, it is determined whether condensation occurs in the condensation monitoring area, and the thickness of the water droplets is determined based on the first receiving time, the second receiving time, the incident angle, and the refraction angle; and operation and maintenance responses of different priorities are performed according to whether condensation occurs in the condensation monitoring area and the thickness of the water droplets.

2. A switch cabinet condensation monitoring method according to claim 1, characterized in that: The method of scanning the condensation monitoring area on the top of the switch cabinet by using a laser includes the following steps: Pre-select a condensation monitoring area on the top of the switch cabinet, and grid the condensation monitoring area into multiple sub-areas; A laser source with a set power is selected to perform laser scanning on the condensation monitoring area in a plane light form to evenly cover each of the divided sub-areas.

3. A switch cabinet condensation monitoring method according to claim 2, characterized in that: The light intensity information of the optical signal is collected in the following manner: The light intensity of the laser scanning area per unit time is expressed by the following matrix: The condensation monitoring area is divided into mn sub-areas with m rows and n columns, wherein the sub-area in the laser scanning area within a unit time is represented as S 11 -S xy , I xy Indicates that the sub-region is S xy Light intensity; Calculate the mean of matrix A And calculate the mean of each element in matrix A The squared difference And calculate the average value of the square difference to get the variance of matrix A It represents the average light intensity of the laser scanning area per unit time.

4. A switch cabinet condensation monitoring method according to claim 3, characterized in that: The determining whether condensation occurs in the condensation monitoring area based on the light intensity information comprises the following steps: If the average light intensity of the laser scanning area within the unit time is greater than the set light intensity threshold, it is determined that condensation has occurred in the laser scanning area within the unit time; Count the number of sub-areas contained in all condensation laser scanning areas; The condensation range of the switch cabinet is calculated based on the counted number of sub-areas where condensation occurs and the number of all sub-areas divided into the condensation monitoring area.

5. A switch cabinet condensation monitoring method according to claim 4, characterized in that: The determining of the water drop thickness based on the first receiving time, the second receiving time, the incident angle, and the refraction angle comprises the following steps: calculating a time difference between the mirror-reflected light and the refracted light according to the first receiving time and the second receiving time, and determining a propagation time of the laser in the water droplet based on the time difference; Determining the propagation distance of the laser in the water droplets according to the propagation time and propagation speed of the laser in the water droplets; The thickness of the water drop is determined according to the propagation distance and the refraction angle.

6. A switch cabinet condensation monitoring method according to claim 5, characterized in that: in, The emission angle of the laser is determined as the incident angle of the mirror-reflected light, and the refraction angle of the refracted light is determined according to the incident angle of the mirror-reflected light and the refractive index of water; the propagation time of the laser in the water droplets is calculated by the following formula t=(t2-t1) / 2, wherein t1 represents the first receiving time and t2 represents the second receiving time; the thickness of the water droplets is calculated by the formula d=s*cosα, wherein s represents the propagation distance and α represents the refraction angle, and the refraction angle satisfies n1sinβ=n2sinα, n1 represents the refractive index of air, n2 represents the refractive index of water, and β represents the incident angle of the mirror-reflected light.

7. A switch cabinet condensation monitoring method according to claim 6, characterized in that: The operation and maintenance response with different priorities according to whether condensation occurs in the condensation monitoring area and the thickness of water droplets includes the following steps: When the condensation range of the switch cabinet is less than the set first threshold and the water drop thickness is less than the set second threshold, a low-priority operation and maintenance response is performed; When the condensation range of the switch cabinet is greater than the set first threshold and the water drop thickness is less than the set second threshold, a medium-priority operation and maintenance response is determined; When the condensation range of the switch cabinet is less than the set first threshold and the water drop thickness is greater than the set second threshold, a high-priority operation and maintenance response is determined.

8. A switch cabinet condensation monitoring device, characterized in that: The device comprises: A scanning module, configured to scan the condensation monitoring area on the top of the switchgear using a laser; wherein the laser generates different types of optical signals according to the surface condition of the condensation monitoring area, including diffusely reflected light, specularly reflected light generated by irradiating water droplets, and refracted light passing through the water droplets; an acquisition module, configured to receive the optical signal, collect light intensity information of the optical signal, detect a first reception time of the mirror-reflected light and a second reception time of the refracted light, as well as an incident angle of the mirror-reflected light and a refraction angle of the refracted light; A judgment module is used to judge whether condensation occurs in the condensation monitoring area based on the light intensity information, and to determine the thickness of water droplets based on the first receiving time, the second receiving time, the incident angle, and the refraction angle; and to perform operation and maintenance responses of different priorities according to whether condensation occurs in the condensation monitoring area and the thickness of the water droplets.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate via the bus. When the machine-readable instructions are executed by the processor, the steps of the switch cabinet condensation monitoring method according to any one of claims 1 to 7 are performed.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the switch cabinet condensation monitoring method according to any one of claims 1 to 7 are executed.

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