Water-submerged inspection device, method and program for controlling water-submerged inspection device

Abstract

To reduce a workload in directing a laser irradiator to an air-break switch on a pole.SOLUTION: A water immersion inspection device inspects immersion in water of an air-break switch on a pole, and comprises: a laser output unit that outputs a laser; a photographing unit that photographs an external environment in a direction of the laser output unit; an irradiation direction control unit that analyzes an image photographed by the photographing unit to control the direction of the laser output unit; a temperature measuring unit that measures a temperature of a bottom face; and an inspection execution unit that inspects water immersion on the basis of, a result of the temperature measurement. The irradiation direction control unit includes: a learning model storage unit that stores a learning model that specifies the bottom face of the air-break switch from the image; a bottom face specification unit that inputs image data to the learning model to specify the bottom face of the air-break switch in the image; an irradiation direction calculation unit that calculates a difference between a current direction of the laser output unit and the direction of the laser output unit when the bottom face is irradiated with the laser on the basis of, the position of the bottom face in the image; and a direction adjustment unit that adjusts the direction of the laser output unit on the basis of the difference.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a water submersion inspection device, a control method for a water submersion inspection device, and a program. [Background technology]

[0002] A variety of equipment is installed in a power distribution system. For example, air switchgears (e.g., high-voltage air switchgears) are installed to connect or disconnect power distribution lines in the air in order to switch the power supply route from a substation to each consumer or to shut down a construction section.

[0003] An air contactor contains electrical components such as a live section inside a metal housing, and if rainwater or the like gets inside the housing, there is a risk that the live section will short-circuit.

[0004] For this reason, a device for inspecting the inside of the housing of an air contact switch for water ingress has been developed (see, for example, Patent Document 1).

[0005] The device described in Patent Document 1 has the exposed surface of the heater and temperature sensor abutted against the bottom surface of the housing of the air contactor, and when the bottom surface of the housing is heated by the heater, the temperature sensor detects the temperature of the bottom surface and determines whether or not water has entered the inside of the housing from the temperature detection result using the principle of thermal conductivity. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2011-89807 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, in order to bring such a device into contact with the bottom surface of the housing of the air contactor, a high-altitude work vehicle must be used for the work.

[0008] For this reason, a device has been developed that irradiates the air contactor with a laser from the ground to raise the temperature of the casing without contact, and also measures the temperature of the casing without contact from the ground, thereby inspecting the air contactor for water intrusion.

[0009] In this case, however, it is necessary to aim the laser irradiator accurately at the bottom surface of the air contactor before emitting the laser. In order to aim the laser irradiator correctly at the air contactor, manual alignment of various devices is required, and there is a demand to reduce the workload.

[0010] The present invention has been made in consideration of the above background, and aims to provide a water-submersion inspection device, a control method for a water-submersion inspection device, and a program that can reduce the workload when aiming a laser irradiator at an air contactor installed on a pole. [Means for solving the problem]

[0011] One of the means for solving the above problem is a water ingress inspection device for inspecting water ingress of an air breaker installed on a pole, the water ingress inspection device comprising: a laser output unit for outputting a laser; an imaging unit for imaging the outside world along the direction of the laser output unit; an irradiation direction control unit for controlling the direction of the laser output unit so that the laser is irradiated onto a bottom surface of a housing of the air breaker by analyzing an image captured by the imaging unit; a temperature measurement unit for measuring the temperature of the bottom surface which rises with the irradiation of the laser; and an inspection execution unit for inspecting water ingress of the air breaker based on the measurement result of the temperature of the bottom surface, the irradiation direction control unit controlling the direction of the laser output unit so that the laser is irradiated onto a bottom surface of a housing of the air breaker by analyzing an image captured by the imaging unit; the image data of the air contactor, by inputting the image data of the air contactor newly photographed by the photographing unit into the learning model, thereby identifying the bottom surface of the housing of the air contactor that is photographed in the image; an irradiation direction calculation unit that calculates the difference between the current orientation of the laser output unit and the orientation of the laser output unit such that the laser is irradiated to the bottom surface of the air contactor, based on the position of the bottom surface in the image; and a direction adjustment unit that adjusts the orientation of the laser output unit based on the difference.

[0012] Other problems and solutions disclosed in the present application will be made clear in the section of the description of the invention and the drawings. Effect of the Invention

[0013] According to the present invention, it is possible to reduce the workload involved in pointing a laser irradiator at an air contactor installed on a pole. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a diagram showing a state in which a submersion inspection device is used to inspect an air switch for submersion. [Diagram 2] FIG. 2 is a diagram showing a configuration of a laser irradiator. [Diagram 3] FIG. 2 is a diagram showing a configuration of an inspection device. [Figure 4] FIG. [Diagram 5] FIG. 1 is a diagram illustrating a learning model. [Figure 6A] FIG. 13 is a diagram showing an example of a screen displayed on a display of an infrared thermograph. [Figure 6B] FIG. 13 is a diagram showing an example of a screen displayed on a display of an infrared thermograph. [Figure 7] FIG. 13 is a diagram showing a state of temperature change when a laser is irradiated onto the bottom surface of an air contactor. [Figure 8] FIG. 2 is a diagram illustrating a functional configuration of a water immersion inspection device. [Figure 9] FIG. 13 is a diagram showing an image of an air contact switch. [Figure 10] 13 is a flowchart showing the process flow when generating a learning model. [Figure 11] 13 is a flowchart showing a process flow of the water immersion inspection device. [Figure 12] FIG. 13 is a diagram showing an example of a screen displaying the inspection results of a water immersion inspection. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] At least the following matters will become apparent from the description of this specification and the accompanying drawings. Hereinafter, the present invention will be described in detail based on an embodiment thereof with reference to the accompanying drawings.

[0016] ===Water immersion inspection of air switch=== FIG. 1 is a diagram showing a state in which a water submersion inspection device 500 according to this embodiment is used to inspect an air switchgear 100 for water submersion.

[0017] The air switch 100 is an electric power device that connects or disconnects the distribution line 210 in the air in order to change the flow of electricity in the distribution line 210 or to establish a blackout section for construction work, and is installed at a high position (for example, about 10 m above ground) on the utility pole 200. The air switch 100 is, for example, a high-voltage air switch that is installed so as to be able to connect or disconnect the position of the demarcation point of responsibility between the electric power company and the consumer on the distribution line 210.

[0018] The air switchgear 100 also has a charging unit 110 for connecting or disconnecting an upstream (substation side) power distribution line 210 and a downstream (consumer side) power distribution line 210. The charging unit 110 is housed in a sealed state inside a housing 120 constituting the air switchgear 100 so as not to deteriorate due to the influence of external factors (wind, rain, moisture, ultraviolet rays, etc.).

[0019] However, the packing (not shown) used to ensure airtightness inside the housing 120 deteriorates over time due to various factors. When the deterioration of the packing progresses beyond a certain level, the airtightness of the housing 120 can no longer be ensured, and rain, moisture, and the like will penetrate into the inside of the housing 120.

[0020] If water accumulates at the bottom inside the housing 120, there is a risk of a short circuit occurring in the charging unit 110 housed inside the housing 120. For this reason, the air contactor 100 is subjected to periodic inspection.

[0021] The water ingress inspection device 500 is a device including an information processing device such as a computer used when inspecting the air switch 100 for water ingress, and is configured by connecting the laser irradiator 300 and the inspection device 400 so that they can communicate with each other.

[0022] The laser irradiator 300 is installed so that a laser emitted from an emission port 330 is irradiated onto the outer bottom surface 130 of the housing 120, and the temperature of the bottom surface 130 of the housing 120 is increased by this laser in a non-contact manner.

[0023] Fig. 7 is a characteristic diagram showing the relationship between the irradiation time (horizontal axis) and the temperature (vertical axis) of bottom surface 130 when a laser is irradiated to bottom surface 130 of housing 120 at 20 W, both in the cases where the inside of housing 120 is not flooded and where a certain amount of water is flooded. In Fig. 7, the solid line shows the case where the inside of housing 120 is not flooded, and the dashed line shows the case where the inside of housing 120 is flooded with a certain amount of water. Note that such a characteristic diagram will vary depending on the type of air contactor 100, the outside air temperature, the laser irradiation distance, etc., so the characteristic diagram shown in Fig. 7 is only one example.

[0024] In the example shown in FIG. 7, a level with an output value of 20 W is applied to the bottom surface 130 of the housing 120 that is not submerged in water.

[0025] When irradiation of the laser begins, the temperature at the irradiation position on bottom surface 130 begins to rise gradually, reaching 158° C. after one minute has passed. On the other hand, when a 20 W laser is irradiated onto bottom surface 130 of housing 120 that is submerged in a certain amount of water, the temperature at the irradiation position on bottom surface 130 gradually rises in a temperature curve that is lower than the temperature of bottom surface 130 of housing 120 that is not submerged in water, and reaches 82° C. after one minute has passed.

[0026] 1, the laser irradiator 300 is placed on a leg 340. The leg 340 has a tripod 341, a first tripod stand 342, and a second tripod stand 343.

[0027] The tripod 341 is installed at a predetermined position on the ground, on a vehicle, or the like when conducting a water immersion inspection of the air contactor 100.

[0028] First tripod 342 is attached to tripod 341 so as to be rotatable about a first rotation axis in the vertical direction. First tripod 342 is driven by a driving device such as a first step motor (not shown) to rotate about the first rotation axis.

[0029] The second tripod 343 is attached to the first tripod 342 so as to be rotatable around a second horizontal rotation axis, and mounts the laser irradiator 300. The second tripod 343 is driven by a driving device such as a second step motor (not shown) to rotate around the second rotation axis.

[0030] Although FIG. 1 shows an example in which the first rotation axis and the second rotation axis are in a twisted position relationship and do not intersect, it is preferable that the first rotation axis and the second rotation axis are in a position relationship in which they have an intersection, as this makes it easier to calculate the direction of the laser light.

[0031] In addition, the laser irradiator 300 is equipped with a camera 350, an acceleration sensor 351, and an inclination sensor 352.

[0032] The camera 350 is attached to the laser illuminator 300 so as to capture the outside world along the direction of the laser illuminator 300. For example, in this embodiment, the camera 350 is attached to the laser illuminator 300 so that the direction of the camera 350 is parallel to the direction of the laser output from the laser illuminator 300.

[0033] Therefore, it becomes possible to irradiate a laser from the laser irradiator 300 to an object appearing in the center of the field of view of an image captured by the camera 350. In other words, by rotating the first tripod 342 and the second tripod 343 so that the bottom surface 130 of the housing 120 of the air switch 100 appears in the center of the image captured by the camera 350, and then outputting a laser from the laser irradiator 300, the laser can be irradiated to the bottom surface 130 of the housing 120.

[0034] It is preferable that the camera 350 is configured integrally with the laser irradiator 300. In this manner, the orientation of the camera 350 does not deviate from the orientation of the laser irradiator 300, so that it is possible to save the trouble of aligning the optical axes of the camera 350 and the laser irradiator 300.

[0035] The camera 350 may be configured to capture still images or video images. Furthermore, the camera 350 may be configured to detect light of multiple wavelengths to capture a multicolor image, or to detect light of one wavelength to capture a monochromatic image. The camera 350 may be configured to detect visible light, or to detect light other than visible light, such as infrared light or ultraviolet light.

[0036] Image data obtained by the camera 350 capturing an image of the outside world is transmitted to the inspection device 400. The inspection device 400 then performs image analysis to identify the position of the bottom surface 130 of the housing 120 in the image, and calculates the adjustment amount (difference) of the direction of the laser irradiator 300. Details will be described later.

[0037] The acceleration sensor 351 detects the acceleration occurring in the laser irradiator 300. This makes it possible to detect deviations in the orientation of the laser irradiator 300, for example, when a worker collides with the laser irradiator 300. In addition, the acceleration sensor 351 can detect the direction of gravity, and therefore can also be used to detect the orientation of the laser irradiator 300.

[0038] The tilt sensor 352 has a pendulum or float inside and detects the tilt angle of the laser irradiator 300 and vibrations occurring in the laser irradiator 300. This makes it possible to detect deviations in the orientation of the laser irradiator 300, for example, when an operator collides with the laser irradiator 300. In addition, the tilt sensor 352 can detect the direction of gravity, and therefore can also be used to detect the orientation of the laser irradiator 300.

[0039] The inspection device 400 controls the orientation of the laser irradiator 300 so that the laser is irradiated to the bottom surface 130 of the housing 120 of the air contact switch 100, and then causes the laser irradiator 300 to output a laser. The inspection device 400 then non-contact measures the temperature of the bottom surface 130 of the housing 120, which rises as the laser is irradiated, and inspects the air contact switch 100 for water intrusion based on the measurement result of the temperature of the bottom surface 130.

[0040] As described above, the inspection device 400 analyzes the image captured by the camera 350 and identifies the position of the bottom surface 130 of the air switch 100 captured in the image, thereby calculating the difference between the irradiation direction in which the laser irradiator 300 should be directed (the direction in which the laser is irradiated to the bottom surface 130 of the housing 120) and the current direction. Then, based on this difference, the direction of the laser irradiator 300 is adjusted by rotating the first tripod 342 and the second tripod 343 described above.

[0041] Furthermore, the inspection device 400 detects infrared radiation energy emitted from the bottom surface 130 of the housing 120 using the infrared thermograph 410, thereby measuring the temperature of the bottom surface 130 in a non-contact manner.

[0042] The inspection device 400 then inspects the air contactor 100 for water ingress based on the measurement result of the temperature of the bottom surface 130 a predetermined time after the start of laser irradiation. For example, the inspection device 400 judges that water ingress has occurred in the air contactor 100 if the temperature of the bottom surface 130 60 seconds after the start of laser irradiation is equal to or lower than a predetermined judgment value.

[0043] According to this embodiment, it is possible to reduce the workload when aiming the laser irradiator 300 at the air contactor 100 installed on a pole. Also, it is possible to more efficiently perform water ingress inspection of the air contactor 100 installed on a pole.

[0044] Moreover, the water submersion inspection device 500 according to this embodiment detects the temperature of the bottom surface 130 of the housing 120 in a non-contact manner when a laser is irradiated onto the bottom surface 130, and inspects whether or not the inside of the housing 120 is submerged in water.

[0045] Therefore, the worker does not need to climb up to the high place where the air contactor 100 is installed to inspect whether the inside of the casing 120 is flooded or not, and the inspection work can be performed safely and efficiently.

[0046] The details will be explained below.

[0047] ===Water intrusion inspection device=== <Laser irradiator>

[0048] FIG. 2 is a diagram showing an example of the configuration of the laser irradiator 300 used in the water immersion inspection apparatus 500 according to this embodiment.

[0049] In FIG. 2, a laser irradiator 300 outputs a fiber laser having a near-infrared wavelength (for example, 1064 nm) as a laser to be irradiated onto the bottom surface 130 of the housing 120 of the air switch 100.

[0050] The laser irradiator 300 includes an excitation section 310, a resonator section 320, and an emission port 330 as components for emitting a fiber laser.

[0051] The excitation section 310 is composed of a plurality of semiconductor lasers 311 for excitation, an excitation combiner 313 through which the lasers (having a wavelength of approximately 0.9 μm) output from the plurality of semiconductor lasers 311 are propagated via optical fibers 312, and an optical fiber 314 through which the plurality of lasers propagated to the excitation combiner 313 are output in a combined state as a single excitation light.

[0052] The resonator unit 320 amplifies the pumping light output from the optical fiber 314 of the pumping unit 310 and outputs it as a fiber laser. The resonator unit 320 includes a high reflectance mirror 321, an amplifying fiber 322, and a low reflectance mirror 323 as means for amplifying and outputting the pumping light as a fiber laser. Here, the fiber laser is a type of solid-state laser that uses an optical fiber as an amplification medium. The amplifying fiber 322 has a core doped with rare earth element Yb (ytterbium) so that the refractive index at the center of the optical fiber is the highest. The pumping light output from the pumping unit 310 is amplified by the high reflectance mirror 321, then excites Yb doped in the core in the amplifying fiber 322, is further amplified by the low reflectance mirror 323, and is oscillated and output as a fiber laser.

[0053] Since the fiber laser is propagated through the amplification fiber 322, it has the advantage of being able to be designed with good energy conversion efficiency and a long focal length. In this embodiment, therefore, taking into consideration that the irradiation distance to the bottom surface 130 of the housing 120 of the air switch 100 is about 10 m, the fiber laser is irradiated from the laser irradiator 300 to the bottom surface 130.

[0054] The laser irradiator 300 is mounted on a leg 340 .

[0055] The leg 340 is a structure that can be adjusted so that the light outlet 330 faces the bottom surface 130 of the housing 120 .

[0056] The laser irradiator 300 is supported by legs 340, and the inspection device 400 controls the first step motor and second step motor (not shown) described above to adjust the orientation of the first tripod 342 and the second tripod 343, thereby enabling the emission port 330 to be directed toward the bottom surface 130 of the housing 120.

[0057] This makes it possible to reliably irradiate the fiber laser to the bottom surface 130 of the housing 120 through the emission port 330. Note that the leg 340 is one example of a structure for supporting the laser irradiator 300, and other structures may be used as long as the structure is adjustable so that the emission port 330 faces the direction of the bottom surface 130 of the housing 120.

[0058] Furthermore, when the laser irradiator 300 is installed on the road surface, there is a risk that an operator may accidentally touch the laser irradiator 300, causing it to fall over or change direction. In this case, it is necessary to prevent the fiber laser from being irradiated onto the human body. Therefore, the laser irradiator 300 may further be provided with an acceleration sensor 351 and an inclination sensor 352, so that when these sensors detect the movement of the laser irradiator 300 while the fiber laser is being irradiated onto the bottom surface 130 of the housing 120, the operation of emitting the fiber laser by the laser irradiator 300 may be stopped.

[0059] <Inspection equipment> FIG. 3 is a diagram showing the configuration of an inspection device 400 used in the water immersion inspection device 500 according to this embodiment.

[0060] The inspection device 400 includes an infrared thermograph 410 , an input device 420 , a CPU 430 , a storage device 440 , a timer 450 , and an output device 460 .

[0061] The CPU 430 is responsible for the overall control of the water-submersion inspection device 500, and realizes various functions of the water-submersion inspection device 500 by executing or processing a water-submersion inspection device control program 700, which is composed of code for performing various operations related to this embodiment stored in the memory device 440, and various data.

[0062] For example, the CPU 430 executes or processes the water immersion inspection device control program 700 and various data, and by working in cooperation with hardware devices such as the laser irradiator 300, camera 350, acceleration sensor 351, tilt sensor 352, infrared thermograph 410, input device 420, memory device 440, timer 450, output device 460, and legs 340, various functions such as the laser output unit 501, the photographing unit 502, the irradiation direction control unit 503, the temperature measurement unit 504, the inspection execution unit 505, the learning model memory unit 506, the bottom surface identification unit 507, the irradiation direction calculation unit 508, the direction adjustment unit 509, the stopping unit 510, the acceleration detection unit 511, the tilt detection unit 512, and the base unit 513, which will be described later, are realized.

[0063] The water immersion inspection device control program 700 is a general term for programs for realizing the functions of the water immersion inspection device 500, and includes, for example, application programs and an OS (Operating System) that run on the water immersion inspection device 500, various libraries, and the like.

[0064] The water submersion inspection device 500 reads out the water submersion inspection device control program 700 from a recording medium (not shown), such as a CD-ROM, a DVD, or a USB (registered trademark) memory, and stores it in the storage device 440. Alternatively, the water submersion inspection device 500 downloads the water submersion inspection device control program 700 from another computer communicatively connected via a communication network (not shown), and stores it in the storage device 440.

[0065] The storage device 440 is a device that provides a physical storage area for storing various programs, data, tables, etc., such as a semiconductor memory, a hard disk drive, or an SSD (Solid State Drive). In this embodiment, as shown in Fig. 4, the storage device 440 stores a water immersion inspection device control program 700, as well as various data such as learning data 610 and a learning model 620.

[0066] The storage device 440 stores learning data 610 and a learning model 620. The water submersion inspection device 500 generates the learning data 610 using multiple image data of the air contactor 100 captured in the past, and generates a learning model (AI model) 620 that can identify the bottom surface 130 of the housing 120 of the air contactor 100 captured in the image.

[0067] The learning data 610 is data (teacher data) used for learning the learning model 620. The learning model 620 is a machine learning model created so as to identify the bottom surface 130 of the housing 120 of the air contactor 100 when new image data of the air contactor 100 is input, and by learning using a larger amount of the learning data 610, the bottom surface 130 can be identified more accurately.

[0068] The water-submersion inspection device 500 can input image data of the air contactor 100 newly captured by the camera 350 into the learning model 620, thereby identifying the bottom surface 130 of the housing 120 of the air contactor 100 that is captured in the image.

[0069] Based on the position of the bottom surface 130 in this image, the water-submersion inspection device 500 can calculate the difference between the current orientation of the laser irradiator 300 and the orientation of the laser irradiator 300 that would irradiate the laser onto the bottom surface 130 of the air contactor 100.

[0070] This will be described with reference to FIG.

[0071] In Figure 9, the bottom surface 130 (indicated by an x ​​mark) of the housing 120 of the air contactor 100 is identified from the image data newly input to the learning model 620, and it is shown that the difference between the current orientation of the laser irradiator 300 indicated by the center of the image (the intersection of the x-axis and y-axis) and the orientation of the laser irradiator 300 such that the laser is irradiated to the bottom surface 130 of the air contactor 100 is (-Δx, +Δy).

[0072] In this case, the water-submersion inspection device 500 adjusts the orientation of the laser irradiator 300 by changing it by -Δx in the azimuth direction and by +Δy in the elevation direction (i.e., by displacing the first tripod 342 by -Δx around the first pivot axis and the second tripod 343 by +Δy around the second pivot axis), thereby controlling the orientation of the laser irradiator 300 so that the laser is irradiated to the bottom surface 130 of the air switch 100.

[0073] The water submersion inspection device 500 generates learning data 610 by associating image data of the air contactor 100 obtained in a water submersion inspection carried out, for example, during a predetermined period in the past (one month, six months, one year, etc., hereinafter referred to as a "time interval") as explanatory variables (feature values) and the position of the bottom surface 130 of the air contactor 100 in each image data as a response variable (label). Note that the task of associating image data with the position of the bottom surface 130 does not need to be performed on a time interval basis, and may be performed each time a water submersion inspection is carried out.

[0074] The above-mentioned time interval is empirically set based on, for example, the frequency of conducting the water immersion inspection. Also, learning models 620 may be generated for a plurality of time intervals, and the bottom surface 130 of the air contactor 100 may be identified using these learning models 620. The above-mentioned time interval is set to a length that improves the accuracy of identifying the bottom surface 130, based on, for example, past cases.

[0075] Alternatively, the water immersion inspection device 500 may generate the learning data 610 from the results of water immersion inspections performed within the above-mentioned time period, but may generate the learning data 610 from the results of a predetermined number of water immersion inspections (e.g., 10,000).

[0076] Alternatively, the water-submerged inspection device 500 may select a predetermined number of pieces (e.g., 1,000 pieces for each company) for each manufacturer of the air switch 100 to generate the learning data 610. With this configuration, it is possible to suppress variation in the content of the learning data 610 used for training the learning model 620 depending on the manufacturer of the air switch 100.

[0077] In this embodiment, the learning model 620 is a deep neural network (DNN), but may be realized by other types of models such as gradient boosting (Gradient Boosting Decision Tree (GBDT)).

[0078] FIG. 5 shows an example of the learning model 620 (structure of a neural network). As shown in FIG. 5, image data is input to an input layer 621 of the learning model 620. The intermediate layer 622 includes one or more hidden layers consisting of one or more nodes including parameters adjusted by learning. The intermediate layer 622 determines the position of the bottom surface 130 in an image output from the output layer 623 based on the image data provided to the input layer 621. The learning model 620 of this embodiment outputs the position of the bottom surface 130 of the housing 120 of the air contactor 100 to be inspected from the output layer 623. Note that the output layer 623 may be configured to output other values ​​(for example, the manufacturer, model, specifications, etc. of the air contactor 100) in addition to the position of the bottom surface 130 of the air contactor 100 to be inspected.

[0079] The learning data 610 is required when learning the learning model 620, but is not required at other times, so it does not need to be stored in the storage device 440 of the water immersion inspection device 500. In this case, for example, the learning data 610 is stored in a computer (not shown), and the learning model 620 is learned on this computer. The water immersion inspection device 500 may then obtain the trained learning model 620 from the computer via the above-mentioned recording medium or communication network, and store it in the storage device 440.

[0080] Returning to FIG. 3, the storage device 440 may be built into the water immersion inspection device 500 or may be externally attached.

[0081] The input device 420 is a device for the water submersion inspection device 500 to acquire data from the outside. For example, image data of the air contactor 100 captured by the camera 350 and measurement data by the acceleration sensor 351 and the tilt sensor 352 are inputted through the input device 420. Furthermore, an operator may input information such as the inspection date and time, weather, and the operator's name through the input device 420.

[0082] The input device 420 may be, for example, a keyboard, a mouse, a microphone, etc., but may also include a communication function with other electronic devices such as the laser irradiator 300 or a USB (registered trademark) memory, and even a communication function with other computers via a communication network such as the Internet or a LAN.

[0083] The infrared thermograph 410 measures the temperature of the bottom surface 130 of the housing 120, which rises with the irradiation of the fiber laser. Specifically, the infrared thermograph 410 detects the infrared radiation energy appearing on the bottom surface 130 when the fiber laser is irradiated from the laser irradiator 300 to the bottom surface 130 of the housing 120, converts it into an apparent temperature, and displays on the display 411, for example, a temperature distribution map of the entire bottom surface 130 with colors corresponding to the apparent temperatures.

[0084] At this time, information indicating the apparent temperature at the position on the bottom surface 130 of the housing 120 where the fiber laser is irradiated is successively updated and stored in the storage device 440. Note that the infrared thermograph 410 starts operation in response to a control command output from the inspection device 400 which acquires, via the input device 420, an irradiation start signal that is generated when an operator operates an irradiation start button (not shown) provided on the laser irradiator 300.

[0085] In addition, in order to precisely detect the temperature distribution on bottom surface 130 of housing 120 and make it easier for an operator to grasp the temperature distribution on bottom surface 130, a magnifying lens (e.g., a 4x lens) may be attached to infrared thermograph 410, the infrared radiation energy on bottom surface 130 of housing 120 may be converted into apparent temperature, and the temperature distribution on bottom surface 130 may be displayed on display 411.

[0086] 6A and 6B are diagrams showing the temperature of the bottom surface 130 of the housing 120 measured by the infrared thermograph 410 and displayed on the display 411. FIG.

[0087] FIG. 6A shows an example of the temperature distribution of bottom surface 130 when laser irradiator 300 irradiates bottom surface 130 with a 20 W fiber laser when housing 120 is not submerged in water.

[0088] On the other hand, FIG. 6B shows an example of the temperature distribution of bottom surface 130 when laser irradiator 300 irradiates bottom surface 130 with a 20 W fiber laser while housing 120 is submerged in water.

[0089] In the example of Fig. 6A, the position of the cross mark is the position of irradiation of the fiber laser, and the temperature at this position rises to 158°C one minute after the start of irradiation. "Maximum 158" shown in the upper left of the display 411 is the temperature at the position of irradiation of the fiber laser. From this, the worker can visually confirm through the display 411 that the housing 120 is not flooded.

[0090] 6B, the position of the cross is the position of the fiber laser irradiation, and the temperature at this position rises to 82° C. one minute after the start of irradiation. The "maximum 82" shown in the upper left of the display 411 is the temperature at the position of the fiber laser irradiation. From this, the worker can visually recognize through the display 411 that the housing 120 is flooded. The outside temperature is shown in the upper center of the display 411. For example, the outside temperature is 34.7°C in Fig. 6A, and 36.7°C in Fig. 6B.

[0091] 3, the timer 450 starts timing from a reset state, triggered by, for example, the operation of the irradiation start button. Note that the timer 450 may be a software timer realized by the CPU 430 executing the water immersion inspection device control program 700, or may be a timer configured by hardware.

[0092] <Functional configuration> Fig. 8 shows a functional block diagram of a water immersion inspection device 500 according to this embodiment. The water immersion inspection device 500 includes the following functions: a laser output unit 501, an image capture unit 502, an irradiation direction control unit 503, a temperature measurement unit 504, an inspection execution unit 505, a learning model storage unit 506, a bottom surface identification unit 507, an irradiation direction calculation unit 508, a direction adjustment unit 509, a stop unit 510, an acceleration detection unit 511, an inclination detection unit 512, a pedestal unit 513, a first pedestal unit 514, a second pedestal unit 515, and a third pedestal unit 516. These functions are realized by the hardware shown in Figs. 2 and 3 executing or processing a water immersion inspection device control program 700 according to this embodiment and various data.

[0093] The laser output unit 501 outputs a laser. In this embodiment, the laser output unit 501 is embodied as the laser irradiator 300, and outputs a fiber laser.

[0094] The photographing unit 502 photographs the outside world along the direction of the laser output unit 501. In this embodiment, the photographing unit 502 is embodied as the camera 350. The photographing unit 502 may be configured integrally with the laser output unit 501. In this embodiment, the photographing unit 502 does not deviate from the direction of the laser output unit 501, so that it is possible to save the effort of aligning the optical axis to match the direction of the photographing unit 502 with the direction of the laser output unit 501.

[0095] The irradiation direction control unit 503 analyzes the image captured by the photographing unit 502 and controls the direction of the laser output unit 501 so that the laser is irradiated onto the bottom surface 130 of the housing 120 of the air switch 100 .

[0096] The irradiation direction control unit 503 is configured to include a learning model storage unit 506 , a bottom surface identification unit 507 , an irradiation direction calculation unit 508 , and a direction adjustment unit 509 .

[0097] The learning model storage unit 506 stores a learning model 620 that is created to identify the bottom surface 130 of the housing 120 of the air contact switch 100 captured in an image by using multiple image data of the air contact switch 100 captured in the past. In this embodiment, the learning model storage unit 506 is embodied as the storage device 440.

[0098] The bottom surface identifying unit 507 identifies the bottom surface 130 of the housing 120 of the air switch 100 shown in the image by inputting image data of the air switch 100 newly photographed by the photographing unit 502 to the learning model 620. The manner in which the bottom surface identifying unit 507 identifies the bottom surface 130 of the air switch 100 is shown in Fig. 10 (the portion indicated by an x ​​mark in Fig. 10).

[0099] Based on the position of the bottom surface 130 in the image, the irradiation direction calculation unit 508 calculates the difference between the current direction of the laser output unit 501 and the direction of the laser output unit 501 such that the laser is irradiated onto the bottom surface 130 of the air switch 100. The difference calculated by the irradiation direction calculation unit 508 is indicated by (-Δx, +Δy) in FIG.

[0100] More specifically, the irradiation direction calculation unit 508 calculates the difference based on the position of the bottom surface 130 in the image showing the air switch 100 and the magnification when the photographing unit 502 photographed the air switch 100. For example, if the photographing unit 502 can photograph the outside world by changing the magnification, the angle of view changes depending on the magnification even if the size of the screen photographed by the photographing unit 502 is the same, so it is necessary to take the magnification into consideration in order to calculate the adjustment amount (difference) of the angle of the laser output unit 501. In other words, if the irradiation direction calculation unit 508 calculates the adjustment amount (difference) of the angle based on the position of the bottom surface 130 in the image showing the air switch 100 and the magnification when the photographing unit 502 photographed the air switch 100, the photographing unit 502 can photograph the outside world by changing the magnification. However, when the magnification of the imaging unit 502 is constant, the angle of view is also constant, so that the irradiation direction calculation unit 508 can calculate the above difference if the position of the bottom surface 130 within the screen is known.

[0101] The direction adjustment unit 509 adjusts the direction of the laser output unit 501 based on the difference calculated by the irradiation direction calculation unit 508. In this embodiment, the direction adjustment unit 509 adjusts the direction of the laser output unit 501 by controlling the above-mentioned first step motor and second step motor (not shown).

[0102] When the laser output unit 501 irradiates the bottom surface 130 of the housing 120 of the air contactor 100 with a laser, the temperature measurement unit 504 measures the temperature of the bottom surface 130 of the air contactor 100, which rises with the irradiation of the laser. For example, the temperature measurement unit 504 measures a first temperature of the bottom surface 130 of the housing 120 at a first time point when the laser irradiation starts, and a second temperature of the bottom surface 130 at a second time point when a predetermined time (for example, 60 seconds) has elapsed from the first time point. By measuring the first temperature and the second temperature in this manner, the temperature rise value of the housing 120 at the predetermined time can be calculated. In this embodiment, the temperature measurement unit 504 is embodied as an infrared thermograph 410.

[0103] The inspection execution unit 505 inspects the air switch 100 for water infiltration based on the measurement result of the temperature of the bottom surface 130 of the housing 120 of the air switch 100. For example, the inspection execution unit 505 inspects the air switch 100 for water infiltration by comparing the temperature value at the second time point with a predetermined judgment value. In this case, the inspection execution unit 505 judges that water infiltration has occurred in the air switch 100 when the temperature of the bottom surface 130 60 seconds after the start of laser irradiation is equal to or lower than the predetermined judgment value, and judges that water infiltration has not occurred when the temperature exceeds the predetermined judgment value.

[0104] Alternatively, the inspection execution unit 505 inspects the air contactor 100 for water ingress by comparing the temperature rise value between the first and second time points with a predetermined judgment value. In this case, it becomes possible to inspect the air contactor 100 for water ingress without being affected by differences in outside air temperature.

[0105] As described above, the water ingress inspection device 500 of this embodiment inputs the image of the air contactor 100 captured by the imaging unit 502 into the learning model 620 to identify the position of the bottom surface 130, and then adjusts the direction of the laser output unit 501. This makes it possible to improve the efficiency of the work of adjusting the direction of the laser output unit 501 and reduces the workload of the worker when pointing the laser output unit 501 at the air contactor 100 installed on a pillar.

[0106] The stop unit 510 stops the output of the laser from the laser output unit 501 when the laser irradiation position is shifted from the bottom surface 130 of the housing 120 of the air switch 100. With this configuration, it is possible to prevent the laser from being irradiated to an unintended location, thereby improving safety.

[0107] For example, the stopping unit 510 may detect that the laser irradiation position has shifted when the position of the bottom surface 130 of the housing 120 of the air contactor 100 shown in the image, which is specified by inputting image data of the air contactor 100 photographed by the photographing unit 502 while the laser output unit 501 is outputting the laser, has changed by a predetermined value or more. Alternatively, the stopping unit 510 may detect that the laser irradiation position has shifted when the center of the image indicating the direction of the laser output unit 501 (the intersection of the x-axis and y-axis shown in FIG. 9 ) falls outside the range of the bottom surface 130 of the housing 120 of the air contactor 100.

[0108] The stopping unit 510 may detect that the laser irradiation position has shifted based on the detection result of the acceleration detection unit 511 that detects the acceleration occurring in the laser output unit 501. In this case, for example, the stopping unit 510 detects the shift of the laser irradiation position by comparing the value of the acceleration detected by the acceleration detection unit 511 while the laser output unit 501 is outputting the laser with a first determination value. In this embodiment, the acceleration detection unit 511 is embodied as the acceleration sensor 351.

[0109] The stopping unit 510 may detect that the laser irradiation position has shifted based on the detection result of the tilt detection unit 512 that detects the tilt of the laser output unit 501. In this case, for example, the stopping unit 510 detects the shift of the laser irradiation position by comparing the amount of change in tilt detected by the tilt detection unit 512 while the laser output unit 501 is outputting the laser with the second determination value. In this embodiment, the tilt detection unit 512 is embodied as the tilt sensor 352.

[0110] The base 513 is a device for placing the laser output unit 501 thereon, and is set at a predetermined position when inspecting the air switch 100 for flooding. In this embodiment, the base 513 is embodied as the leg 340. The base 513 includes a first base 514, a second base 515, and a third base 516.

[0111] The first base portion 514 is installed at a predetermined position when inspecting for water intrusion into the air switch 100. In this embodiment, the first base portion 514 is embodied as a tripod 341.

[0112] Second pedestal unit 515 is attached to first pedestal unit 514 so as to be rotatable about a first rotation axis in the vertical direction. Moreover, third pedestal unit 516 is attached to second pedestal unit 515 so as to be rotatable about a second rotation axis in the horizontal direction, and has laser output unit 501 placed thereon. In this embodiment, second pedestal unit 515 is embodied as first tripod unit 342, and third pedestal unit 516 is embodied as second tripod unit 343.

[0113] The direction adjustment unit 509 adjusts the direction of the laser output unit 501 by adjusting the direction of the second pedestal unit 515 and the direction of the third pedestal unit 516 .

[0114] In this manner, it is possible to accurately direct the laser output unit 501 toward the bottom surface 130 of the air switch 100 .

[0115] The water-submersion inspection device 500 then displays the result of the inspection of the water submersion of the air switchgear 100 on the output device 460 or the display 411 in a format as shown in FIG. 12, for example.

[0116] As described above, the water submersion inspection device 500 according to this embodiment inputs the image of the air contactor 100 photographed by the photographing unit 502 into the learning model 620 to identify the position of the bottom surface 130, and then adjusts the direction of the laser output unit 501, so that the task of adjusting the direction of the laser output unit 501 by an operator can be omitted, and the workload when aiming the laser output unit 501 at the air contactor 100 installed on a pole can be reduced. This makes it possible to perform water submersion inspection of the air contactor 100 installed on a pole more accurately and efficiently.

[0117] ==Process flow== Next, with reference to Figures 10 and 11, we will explain the process in which the water-submersion inspection device 500 of this embodiment uses the learning data 610 to learn the learning model 620, and the process flow when performing a water-submersion inspection of the air contactor 100 after adjusting the orientation of the laser irradiator 300 using this learning model 620.

[0118] 10 is a flowchart explaining the process when the water submersion inspection device 500 learns the learning model 620 using the learning data 610. The timing at which the water submersion inspection device 500 executes learning of the learning model 620 is not necessarily limited, but the water submersion inspection device 500 executes the learning process of the learning model 620 when, for example, the water submersion inspection device 500 acquires new image data, when an instruction to execute learning is received from a person in charge via a user interface such as the input device 420, or at a predetermined timing that arrives at a predetermined period (once a month, once a year, etc.).

[0119] First, the water submersion inspection device 500 generates data as learning data 610 that associates multiple images of the air switch 100 taken by the camera 350 during past water submersion inspections carried out within a time interval with the position of the bottom surface 130 of the air switch 100 captured in each image (S1000). The position of the bottom surface 130 in each image is individually specified by the creator of the learning data 610.

[0120] Next, the water immersion inspection device 500 performs a learning process for the learning model 620 using the learning data 610 (S1010).

[0121] The water submersion inspection device 500 may be configured to verify the prediction accuracy of the trained learning model 620. In this case, the water submersion inspection device 500 classifies the learning data 610 into data for learning and data for verification in advance, trains the learning model 620 using the data for learning, and verifies the learning model 620 using the data for verification.

[0122] FIG. 11 is a flowchart for explaining the flow of processing when the water submersion inspection device 500 performs a water submersion inspection of the air contactor 100 after adjusting the direction of the laser irradiator 300 using the learning model 620.

[0123] First, the worker identifies a position on the road surface where the fiber laser can be irradiated to the bottom surface 130 of the housing 120 of the air switch 100 installed at a high position of the utility pole 200, and installs the legs 340 and the laser irradiator 300 at that position. At this time, the worker roughly adjusts the position of the legs 340 and the orientations of the first tripod 342 and the second tripod 343 so that the emission port 330 of the laser irradiator 300 faces the direction of the bottom surface 130 of the housing 120. The worker also installs the inspection device 400 at a position where the infrared radiation energy of the bottom surface 130 of the housing 120 when the fiber laser is irradiated to the bottom surface 130 can be converted into an apparent temperature.

[0124] After the installation of the leg 340, the laser irradiator 300, and the inspection device 400 is completed, the water submersion inspection device 500 photographs the air switch 100 using the camera 350 (S2000). Then, the water submersion inspection device 500 transfers this image data from the camera 350 to the inspection device 400.

[0125] The inspection device 400 inputs image data of the air contactor 100 newly captured by the camera 350 into the learning model 620, thereby identifying the position of the bottom surface 130 of the housing 120 of the air contactor 100 captured in the image (S2010).

[0126] Then, based on the position of the bottom surface 130 in the image, the inspection device 400 calculates the difference between the current orientation of the laser irradiator 300 and the orientation of the laser irradiator 300 that would irradiate the laser to the bottom surface 130 of the air switch 100 (S2020), and based on this difference, adjusts the orientation of the laser irradiator 300 so that the laser irradiator 300 faces the bottom surface 130 (S2030).

[0127] When the operator operates the irradiation start button of the laser irradiator 300 and detects the generation of an irradiation start signal (S2040), the water immersion inspection device 500 irradiates a fiber laser from the laser irradiator 300 toward the bottom surface 130 of the housing 120 (S2050).

[0128] The water submersion inspection device 500 controls the infrared thermograph 410 to convert the infrared radiation energy appearing on the bottom surface 130 of the housing 120 into apparent temperature at regular time intervals (for example, 1 second), and displays it as a temperature distribution map of the entire bottom surface 130 on the display 411, as shown in Figures 6A and 6B. The water submersion inspection device 500 also stores information indicating the apparent temperature at the position where the fiber laser is irradiated on the bottom surface 130 of the air switch 100 in the storage device 440, while successively updating the information.

[0129] Furthermore, the water immersion inspection device 500 stores in the storage device 440 the temperature (first temperature) of the bottom surface 130 at the first time point when the irradiation start signal is detected.

[0130] The water immersion inspection device 500 checks whether the timing measured by the timer 450 has reached one minute (S2060).

[0131] When the timing of the timer 450 reaches a second time point that is one minute after the first time point (S2060), the water immersion inspection device 500 stores in the storage device 440 the temperature of the bottom surface 130 at the second time point (second temperature).

[0132] The water submersion inspection device 500 then compares the difference between the first temperature and the second temperature with a predetermined determination value to determine whether the air switch 100 is submerged in water or not.

[0133] The water-immersion inspection equipment 500 then generates a screen showing the inspection results as shown in Fig. 12, and outputs the inspection results to the display 411 or the output device 460 (S2070). Note that Fig. 12 shows the inspection date and time, the identification number of the switch to be inspected, and the like, but this information is input into the inspection equipment 400 before the water-immersion inspection begins.

[0134] The water submersion inspection device 500, the control method for the water submersion inspection device 500, and the water submersion inspection device control program 700 according to this embodiment have been described above. According to this embodiment, the image of the air contactor 100 taken by the camera 350 is input to the learning model 620 to identify the position of the bottom surface 130 of the air contactor 100, and then the orientation of the laser irradiator 300 is adjusted. This makes it possible to omit the work of adjusting the orientation of the laser irradiator 300 by an operator, and to reduce the workload when pointing the laser irradiator 300 at the air contactor 100 installed on a pole. This makes it possible to perform water submersion inspection of the air contactor 100 installed on a pole more accurately and efficiently.

[0135] In this embodiment, the fiber laser is irradiated to one position on the bottom surface 130 of the housing 120 to inspect whether or not the inside of the housing 120 is flooded with water, but the present invention is not limited to this. For example, the fiber laser may be sequentially irradiated to a plurality of different positions on the bottom surface 130 of the housing 120, and the inspection operation of Fig. 11 may be performed for each of the plurality of irradiation positions of the fiber laser, thereby increasing the accuracy of the inspection regarding whether or not the housing 120 is flooded with water.

[0136] In addition, in this embodiment, a fiber laser is used to inspect whether or not water has entered the housing 120, but this is not limiting. A solid-state laser other than a fiber laser may also be used as long as it is capable of inspecting whether or not water has entered the housing 120 in the same manner as in this embodiment.

[0137] In the present embodiment, the embodiment has been described in which the water ingress inspection device 500 is installed on the ground to inspect the air contactor 100 for water ingress, but the inspection may be performed from the air. For example, the embodiment may be such that a propeller is provided on the leg 340, and the air contactor 100 is irradiated with a laser while the laser irradiator 300 is levitated in the air to inspect for water ingress.

[0138] The above-described embodiment is for the purpose of facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit of the present invention, and equivalents thereof are also included in the present invention. [Explanation of symbols]

[0139] 100 Air switch 110 Live parts 120 Case 130 Bottom 200 Electric poles 210 Power Distribution Line 300 Laser Illuminator 310 Excitation section 311 Semiconductor Laser 312 Optical Fiber 313 Excitation Combiner 314 Optical Fiber 320 Resonator section 321 High reflectivity mirror 322 Amplification Fiber 323 Low reflectance mirror 330 Exit 340 Legs 341 Tripod 342 1st tripod stand 343 2nd tripod stand 350 Camera 351 Acceleration Sensor 352 Inclination Sensor 400 Inspection Equipment 410 Infrared Thermograph 411 Display 420 Input Device 430 CPU 440 Storage device 450 Timer 460 Output Device 500 Water-immersion inspection device 501 Laser output unit 502 Photography Department 503 Irradiation direction control unit 504 Temperature measurement section 505 Inspection Execution Department 506 Learning Model Memory Unit 507 Bottom surface identification part 508 Irradiation direction calculation unit 509 Direction adjustment section 510 Stop part 511 Acceleration detection unit 512 Tilt detection unit 513 Pedestal 514 First Pedestal 515 Second Pedestal 516 Third Pedestal 610 Training Data 620 Learning Model 621 Input Layer 622 Middle Class 623 Output Layer 700 Water-immersion inspection device control program

Claims

1. A water ingress inspection device for inspecting water ingress of an air switchgear installed on a pole, comprising: A laser output unit that outputs a laser; an imaging unit that captures an external environment along the direction of the laser output unit; an irradiation direction control unit that controls a direction of the laser output unit so that a laser is irradiated onto a bottom surface of a housing of the air switch by analyzing the image captured by the imaging unit; a temperature measuring unit that measures the temperature of the bottom surface that increases with the irradiation of a laser; an inspection execution unit that inspects the air contactor for flooding based on the measurement result of the temperature of the bottom surface; Equipped with The irradiation direction control unit is a learning model storage unit that stores a learning model that is created by using a plurality of image data of the air contact switch captured in the past so as to identify the bottom surface of the housing of the air contact switch captured in the image; a bottom surface identification unit that inputs image data of the air contact switch newly photographed by the photographing unit into the learning model to identify a bottom surface of a housing of the air contact switch photographed in the image; an irradiation direction calculation unit that calculates a difference between a current orientation of the laser output unit and an orientation of the laser output unit such that a laser is irradiated onto the bottom surface of the air switch, based on a position of the bottom surface within the image; a direction adjustment unit that adjusts the direction of the laser output unit based on the difference; A water immersion inspection device comprising:

2. The water immersion inspection device according to claim 1, The imaging unit is integral with the laser output unit,

3. The water immersion inspection device according to claim 1 or 2, A base portion on which the laser output unit is placed; Further equipped with The base portion is a first base portion that is installed at a predetermined position when inspecting the air switch for flooding; a second base portion attached to the first base portion so as to be rotatable about a first rotation axis in a vertical direction; a third base portion that is attached to the second base portion so as to be rotatable about a second rotation axis in a horizontal direction and that supports the laser output unit; having The direction adjustment unit adjusts the direction of the laser output unit by adjusting the direction of the second base unit and the direction of the third base unit, respectively.

4. The water immersion inspection device according to any one of claims 1 to 3, The irradiation direction calculation unit is A water-submersion inspection device that calculates the difference based on the position of the bottom surface in an image in which the air contactor is captured and the magnification at which the photographing unit photographed the air contactor.

5. The water immersion inspection device according to any one of claims 1 to 4, a stopper that stops output of a laser from the laser output unit when an irradiation position of the laser with respect to the bottom surface of the housing is shifted; The water immersion inspection device further comprises:

6. The water immersion inspection device according to claim 5, The stop portion is A water-submersion inspection device that detects a shift in the laser irradiation position when the position of the bottom surface of the housing of the air contactor shown in the image, which is identified by inputting image data of the air contactor captured by the photographing unit while the laser output unit is outputting a laser, changes by more than a predetermined value.

7. The water immersion inspection device according to claim 5 or 6, an acceleration detection unit that detects acceleration generated in the laser output unit; Further equipped with The stopping unit detects a shift in the laser irradiation position by comparing the acceleration value detected by the acceleration detection unit while the laser output unit is outputting a laser with a first judgment value.

8. The water immersion inspection device according to any one of claims 5 to 7, A tilt detection unit that detects a tilt of the laser output unit; Further equipped with The stopping unit detects a shift in the laser irradiation position by comparing the amount of change in inclination detected by the inclination detection unit while the laser output unit is outputting a laser with a second judgment value.

9. The water immersion inspection device according to any one of claims 1 to 8, The water immersion inspection apparatus, wherein the laser is a fiber laser.

10. A laser output unit that outputs a laser; an imaging unit that captures an external environment along the direction of the laser output unit; an irradiation direction control unit that controls a direction of the laser output unit so that a laser is irradiated onto a bottom surface of a housing of an air contact switch installed on a pole by analyzing an image captured by the imaging unit; a temperature measuring unit that measures the temperature of the bottom surface that increases with the irradiation of a laser; an inspection execution unit that inspects the air contactor for flooding based on the measurement result of the temperature of the bottom surface; A method for controlling a water immersion inspection device comprising: The irradiation direction control unit, A learning model is created to identify the bottom surface of the housing of the air contact switch captured in the image by using multiple image data of the air contact switch captured in the past, and the learning model is stored; inputting image data of the air contact switch newly photographed by the photographing unit into the learning model, thereby identifying a bottom surface of a housing of the air contact switch photographed in the image; Calculating a difference between a current orientation of the laser output unit and an orientation of the laser output unit such that a laser is irradiated onto the bottom surface of the air switch based on a position of the bottom surface in the image; adjusting the direction of the laser output unit based on the difference; A method for controlling a water-immersion inspection device.

11. A laser output unit that outputs a laser; an imaging unit that captures an external environment along the direction of the laser output unit; an irradiation direction control unit that controls a direction of the laser output unit so that a laser is irradiated onto a bottom surface of a housing of an air contact switch installed on a pole by analyzing an image captured by the imaging unit; a temperature measuring unit that measures the temperature of the bottom surface that increases with the irradiation of a laser; an inspection execution unit that inspects the air contactor for flooding based on the measurement result of the temperature of the bottom surface; A computer that controls a water immersion inspection device comprising: A function of storing a learning model created to identify the bottom surface of the housing of the air contact switch captured in the image by using multiple image data of the air contact switch captured in the past; a function of inputting image data of the air contact switch newly photographed by the photographing unit into the learning model, thereby identifying a bottom surface of the housing of the air contact switch photographed in the image; a function of calculating a difference between a current orientation of the laser output unit and an orientation of the laser output unit such that a laser is irradiated onto the bottom surface of the air switch, based on a position of the bottom surface within the image; a function of adjusting the direction of the laser output unit based on the difference; A program to achieve this.

Images