Explosion-proof electrical control box integrating visual identification and fault diagnosis analysis of quick-opening door

Abstract

The invention belongs to the technical field of anti-explosion electrical control boxes, and particularly relates to an anti-explosion electrical control box with a quick-opening door fused with visual identification and fault diagnosis analysis. Comprising a shell used in an explosive environment, and an opening is reserved in the shell; the quick door opening structure is mounted at an opening reserved in the shell; the neutral mounting plate structure is fixed in the shell; the electrical control system structure is mounted on the neutral mounting plate structure; and the intelligent control system structure is mounted on the inner side of the quick door opening structure. According to the electrical control shell with the explosion prevention function, door opening and closing operation is easy and convenient, the structure is safe and reliable, a rapid door opening structure facilitates rapid processing of faults, the maintenance efficiency can be improved, and the user satisfaction degree is greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of explosion-proof electrical control boxes, and in particular is an explosion-proof electrical control box that integrates quick-opening visual recognition and fault diagnosis and analysis. Background Art

[0002] Coal, petroleum, chemical, textile and other industries play an important role in the national economy. These industries will produce explosive gas, steam or explosive dust during the production process. Electrical control housings with explosion prevention functions have emerged in such explosive hazardous places. Up to now, due to the similarity of market product technologies and slow product technology updates, they are gradually unable to adapt to the new requirements of the increasingly updated coal mine intelligent construction.

[0003] The underground working space of coal mines is narrow, and the production operations of coal mines often change. The electrical control housing with explosion-proof function needs to be frequently moved along with the whole equipment. Therefore, the housing that can realize electrical control must be explosion-proof and lightweight under the condition of bearing strength, and the door takes up little space. Even if the whole machine is stopped at an extreme position such as near the coal wall, the daily maintenance and repair work can still be completed through the quick door opening structure. Summary of the invention

[0004] In order to adapt to the narrow space operation underground, the present invention improves the adaptability and versatility of the box through the design of key structures, and provides an explosion-proof electrical control box with quick opening integrated with visual recognition and fault diagnosis and analysis.

[0005] The present invention adopts the following technical scheme: a novel quick-opening infrared thermal imaging fault diagnosis explosion-proof electrical control box, comprising: An enclosure for use in an explosive environment, wherein an opening is reserved on the enclosure; A quick door opening structure, wherein the quick door opening structure is installed at an opening reserved on the housing; A neutral mounting plate structure, wherein the neutral mounting plate structure is fixed inside the housing; An electrical control system structure, wherein the electrical control system structure is mounted on a neutral mounting plate structure; Intelligent control system structure: The intelligent control system structure is installed inside the rapid door opening structure.

[0006] In some embodiments, the rapid door opening structure includes: A door panel structure, wherein the door panel structure is arranged at an opening reserved on the housing; An upper door shaft structure and a lower door shaft structure, wherein the upper door shaft structure and the lower door shaft structure are respectively fixed to the upper and lower sides of the door panel structure, and the ends of the upper door shaft structure and the lower door shaft structure are hinged to one end of the connecting rod structure through a rotating component; The upper hinge of the box body and the lower hinge of the box body are fixed on the outer side of the shell and are respectively used to install the other end of the connecting rod structure.

[0007] In some embodiments, the rapid door opening structure further includes a translation mechanism, wherein the translation mechanism includes a gear shaft, a fixing seat, a rack, a fixing plate, an anchor block, and a handle; The fixing seat is fixedly connected to the door panel structure by bolts; The gear shaft is fixed on the fixed seat by a circlip and is meshed and fixed with the rack, and can translate and rotate within a fixed distance; The fixing plate is fixed to the fixing seat by screws to prevent the rack from falling off; the anchor block is welded and fixed to the outer shell, and is concentrically fixedly connected with the rack to fix the rack relative to the box; The handle is connected to the fixing seat.

[0008] In some embodiments, the neutral mounting plate structure includes: An electrical component mounting plate, the electrical component mounting plate being used to mount an electrical control system structure; A transfer shaft, wherein the transfer shaft is fixed to one side of the electrical component mounting plate; A fixed hinge is installed on the transfer shaft and is used to be fixed to the housing.

[0009] In some embodiments, two neutral mounting plate structures are provided, namely a left neutral mounting plate structure and a right neutral mounting plate structure; The left neutral mounting plate structure and the right neutral mounting plate structure are rotatably connected in the shell, the top plate in the shell is fixed with an upper limit plate, and the lower limit plate is fixed to the bottom plate in the shell; when the explosion-proof box is working normally, the left neutral mounting plate structure and the right neutral mounting plate structure are rotated to the inside of the shell, and the electrical component mounting plate can be fixed to the upper and lower limit plates by bolts, thereby ensuring that the left neutral mounting plate structure and the right neutral mounting plate are in a locked state during work.

[0010] In some embodiments, the transfer shaft is rectangular, one long side of the transfer shaft is hingedly connected to the fixed hinge, and the other long side is fixedly connected to the electrical component mounting plate.

[0011] In some embodiments, the intelligent control system structure is an infrared camera, and whether a component is faulty is determined based on the infrared thermal images taken by the infrared camera.

[0012] In some embodiments, the step of determining whether a component is faulty includes: S1: Select 70% of the photos collected by the infrared camera as the training set, use the labelme annotation tool to create a segmented data set, and select the corresponding electrical components respectively; S2: Send the annotated label file and the original image of the electrical components inside the electric control box to the DeeplabV3+ model for training; S4: Determine the fault temperature threshold T ; S5: Extract the maximum temperature of electrical components and fault temperature thresholds T If the judgment conditions are met, the corresponding component is judged to be faulty. If the conditions are not met, the corresponding component is judged to be normal.

[0013] In some embodiments, in step S4: the fault temperature threshold T It is set according to the operating temperature requirements of the equipment.

[0014] In some embodiments, in step S5, the maximum temperature of the electrical component is extracted. Including: using YOLOv7 to perform preliminary inspection of the electrical components inside the electric control box, inputting the detected image into the DeeplabV3 semantic segmentation model for component segmentation, thereby separating multiple electrical components, and then extracting the maximum temperature of each electrical component based on the infrared thermal imager .

[0015] Compared with the prior art, the present invention has the following beneficial effects: The explosion-proof electrical control housing door designed by the present invention is simple and convenient to operate, and has a safe and reliable structure. Its quick door opening structure is convenient for rapid fault handling, can improve maintenance efficiency, greatly improve user satisfaction, and can enhance the market competitiveness and brand image of the product; at the same time, the quick door opening structure occupies a small space when opening the door, and can solve the versatility and applicability of the product in a variety of restricted environments. Even after the entire equipment is shut down at an extreme position such as near a coal wall, daily maintenance and repair work can still be completed through the quick door opening structure.

[0016] The present invention can increase the inspection space of the explosion-proof electrical control housing through the design of the neutral mounting plate structure, can make full use of the space structure inside the housing, improve the space utilization rate of the explosion-proof electrical control housing, and improve the safety and reliability of the explosion-proof electrical control housing; at the same time, the core unit control circuit and the drive unit control circuit realize the modular design inside the housing through the neutral mounting plate structure, which can effectively solve the problem of electromagnetic interference signals to the control circuit caused by the scattered installation of electrical components of each circuit.

[0017] The novel quick-opening door structure box of the present invention has an explosion-proof electrical control shell with an added intelligent control system, and has both wired and wireless data transmission modes; it has wireless WIFI and 5G communication functions, and can use the working face wireless transmission system to upload real-time data and images of the anchor drill; an infrared camera is provided inside the electrical control box to monitor the temperature of electrical components inside the electrical control box and perform thermal fault diagnosis; it has personnel approach protection, and can alarm when a person approaches within 5 meters, and shut down when a person approaches within 2 meters; an inertial navigation system is provided, which is installed inside the explosion-proof electrical control shell, and is used to detect the posture and running trajectory of the whole machine. During the working stage, it can display the real-time position, posture, heading, running trajectory and other information of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structure diagram of the present invention; Figure 2 This is a schematic diagram of the quick door opening structure; Figure 3 This is a schematic diagram of the neutral mounting plate structure; Figure 4 This is a schematic diagram of the door opening angle; Figure 5 This is the exploded diagram of the translation mechanism; Figure 6 This is an exploded view of the neutral mounting plate structure; Figure 7 Flip schematic diagram for neutral mounting plate; Figure 8 Training loss function curve; Fig. 9 Infrared thermal imaging fault diagnosis flow chart. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 1 As shown, a new type of quick-opening infrared thermal imaging fault diagnosis explosion-proof electrical control box includes: A housing 2 for use in an explosive environment, wherein an opening is reserved on the housing 2; A quick door opening structure 1, wherein the quick door opening structure 1 is installed at an opening reserved on the housing 2; A neutral mounting plate structure 3, wherein the neutral mounting plate structure 3 is fixed inside the housing 2; An electrical control system structure 4, wherein the electrical control system structure 4 is mounted on the neutral mounting plate structure 3; The intelligent control system structure 5 is installed on the inner side of the fast door opening structure 1.

[0021] like Figure 2 As shown, the quick door opening structure 1 includes: A door panel structure 1.1, wherein the door panel structure 1.1 is arranged at an opening reserved on the housing 2; An upper door shaft structure 1.2 and a lower door shaft structure 1.3, wherein the upper door shaft structure 1.2 and the lower door shaft structure 1.3 are respectively fixed to the upper and lower sides of the door panel structure 1.1, and the ends of the upper door shaft structure 1.2 and the lower door shaft structure 1.3 are hinged to one end of the connecting rod structure 1.5 through a rotating component; The upper hinge 1.6 and the lower hinge 1.7 of the box body are fixed on the outer side of the shell 2 and are used to install the other end of the connecting rod structure 1.5 respectively.

[0022] The quick door opening structure 1 further comprises a translation mechanism 1.4, wherein the translation mechanism 1.4 comprises a gear shaft 1.4.1, a fixing seat 1.4.2, a rack 1.4.3, a fixing plate 1.4.4, an anchor block 1.4.5 and a handle 1.4.6; The fixing seat 1.4.2 is fixedly connected to the door panel structure 1.1 by bolts; The gear shaft 1.4.1 is fixed to the fixed seat 1.4.2 by a retaining spring and is meshed and fixed with the rack 1.4.3, and can translate and rotate within a fixed distance; The fixing plate 1.4.4 is fixed to the fixing seat 1.4.2 by screws to prevent the rack from falling off; the anchor block 1.4.5 is welded and fixed to the housing 2, and is concentrically fixedly connected with the rack 1.4.3, so that the rack is fixed relative to the box body; The handle 1.4.6 is connected to the fixing base 1.4.2.

[0023] When the electric control box is opened, the gear shaft 1.4.1 is rotated by a special tool, so that the gear shaft 1.4.1 rotates at a fixed distance on the rack 1.4.3, driving the door panel structure 1.1 to move parallel to a fixed distance, thereby completing the opening and closing of the electric control box door panel structure 1.1.

[0024] After the door panel structure 1.1 is separated, the door panel structure 1.1 can be fan-shaped opened through the connecting rod structures, and can also be horizontally opened at the same time. Figure 3 shown.

[0025] When the electrically controlled housing door can be opened, the door panel structure can be translated a fixed distance through the translation mechanism, and then the door panel can be opened outwards. At the same time, the door panel structure can be rotated through the upper and lower door shaft hinges, thereby reducing the space occupied by the door opening, improving maintenance efficiency and product versatility.

[0026] like Figure 3 As shown, the neutral mounting plate structure 3 includes: An electrical component mounting plate 3.3, the electrical component mounting plate 3.3 is used to mount an electrical control system structure 4; A transfer shaft 3.2, wherein the transfer shaft 3.2 is fixed to one side of the electrical component mounting plate 3.3; The fixed hinge 3.1 is mounted on the transfer shaft 3.2 and is used to be fixed to the housing 2.

[0027] Two neutral mounting plate structures 3 are provided, namely a left neutral mounting plate structure and a right neutral mounting plate structure; The left neutral mounting plate structure and the right neutral mounting plate structure are rotatably connected in the outer shell 2, the top plate in the outer shell 2 is fixed with an upper limit plate 3.4, and the lower limit plate 3.5 is fixed to the bottom plate in the outer shell 2; when the explosion-proof box is working normally, the left neutral mounting plate structure and the right neutral mounting plate structure are rotated to the inside of the outer shell 2, and the electrical component mounting plate thereof can be fixed to the upper and lower limit plates by bolts, thereby ensuring that the left neutral mounting plate structure and the right neutral mounting plate are in a locked state during work.

[0028] like Figure 6 As shown, the transfer shaft 3.2 is rectangular, one long side of the transfer shaft 3.2 is hingedly connected to the fixed hinge 3.1, and the other long side is fixedly connected to the electrical component mounting plate 3.3.

[0029] When the core control unit of the electronic control system is mounted on the electrical component mounting plate, it can be rotated to the outside of the box through the adapter shaft.

[0030] The intelligent control system structure 5 is an infrared camera, which determines whether a component is faulty based on the infrared thermal image taken by the infrared camera.

[0031] YOLOv7 is used to identify the electrical components inside the electric control box, such as contactors, transformers, disconnectors, fuses, etc. The temperature of these components is basically positively correlated with the current, the fault temperature is clearly distinguished, and the visual difference of infrared thermal imaging is large, so infrared thermal imaging recognition technology is used.

[0032] The steps to determine whether a component is faulty include: S1: Select 70% of the photos collected by the infrared camera as the training set, use the labelme annotation tool to create a segmented data set, and select the corresponding electrical components respectively; S2: Send the annotated label file and the original image of the electrical components inside the electric control box to the DeeplabV3+ model for training. The batch size is set to 10 during training, the optimizer is SGD, the momentum is set to 0.9, the initial learning rate is 0.005, the weight decay coefficient is 0.0001, and after 2000 iterations, the target loss function reaches the minimum of 0.0036, as shown in Fig. 9 As shown; S4: Determine the fault temperature threshold T , fault temperature threshold T Set according to the operating temperature requirements of the equipment; S5: Extract the maximum temperature of electrical components and fault temperature thresholds T If the judgment conditions are met, the corresponding component is judged to be faulty. If the conditions are not met, the corresponding component is judged to be normal.

[0033] In step S5, the maximum temperature of the electrical component is extracted Including: using YOLOv7 to perform preliminary inspection of the electrical components inside the electric control box, inputting the detected image into the DeeplabV3 semantic segmentation model for component segmentation, thereby separating multiple electrical components, and then extracting the maximum temperature of each electrical component based on the infrared thermal imager .

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new type of quick-opening infrared thermal imaging fault diagnosis explosion-proof electrical control box, characterized in that: include: A housing (2) for use in an explosive environment, wherein an opening is reserved on the housing (2); A quick door opening structure (1), wherein the quick door opening structure (1) is installed at an opening reserved on the housing (2); A neutral mounting plate structure (3), wherein the neutral mounting plate structure (3) is fixed inside the housing (2); An electrical control system structure (4), wherein the electrical control system structure (4) is mounted on the neutral mounting plate structure (3); An intelligent control system structure (5) is installed inside the quick door opening structure (1).

2. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 1 is characterized in that: The rapid door opening structure (1) comprises: A door panel structure (1.1), wherein the door panel structure (1.1) is arranged at an opening reserved on the outer shell (2); An upper door shaft structure (1.2) and a lower door shaft structure (1.3), wherein the upper door shaft structure (1.2) and the lower door shaft structure (1.3) are respectively fixed to the upper and lower sides of the door panel structure (1.1), and the ends of the upper door shaft structure (1.2) and the lower door shaft structure (1.3) are hinged to one end of the connecting rod structure (1.5) via a rotating component; An upper hinge (1.6) and a lower hinge (1.7) of the box body are fixed on the outside of the outer shell (2) and are used to install the other end of the connecting rod structure (1.5) respectively.

3. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 2 is characterized in that: The rapid door opening structure (1) further comprises a translation mechanism (1.4), wherein the translation mechanism (1.4) comprises a gear shaft (1.4.1), a fixing seat (1.4.2), a rack (1.4.3), a fixing plate (1.4.4), an anchor block (1.4.5) and a handle (1.4.6); The fixing seat (1.4.2) is fixedly connected to the door panel structure (1.1) by bolts; The gear shaft (1.4.1) is fixed to the fixed seat (1.4.2) by a retaining spring and is meshed and fixed with the rack (1.4.3) so as to be able to translate and rotate within a fixed distance; The fixing plate (1.4.4) is fixed to the fixing seat (1.4.2) by screws to prevent the rack from falling off; the anchor block (1.4.5) is welded and fixed to the housing (2) and is concentrically fixedly connected to the rack (1.4.3) so that the rack is fixed relative to the housing; The handle (1.4.6) is connected to the fixing seat (1.4.2).

4. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 1 is characterized in that: The neutral mounting plate structure (3) comprises: An electrical component mounting plate (3.3), wherein the electrical component mounting plate (3.3) is used to mount an electrical control system structure (4); A transfer shaft (3.2), wherein the transfer shaft (3.2) is fixed to one side of the electrical component mounting plate (3.3); A fixed hinge (3.1), wherein the fixed hinge (3.1) is mounted on the transfer shaft (3.2) and is used to be fixed to the housing (2).

5. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 4 is characterized in that: The neutral mounting plate structures (3) are provided in two pieces, namely a left neutral mounting plate structure and a right neutral mounting plate structure; The left neutral mounting plate structure and the right neutral mounting plate structure are rotatably connected in the housing (2); an upper limit plate (3.4) is fixed to the top plate in the housing (2); and a lower limit plate (3.5) is fixed to the bottom plate in the housing (2); when the explosion-proof box is working normally, the left neutral mounting plate structure and the right neutral mounting plate structure are rotated to the inside of the housing (2), and the electrical component mounting plates thereof can be fixed to the upper and lower limit plates by bolts, thereby ensuring that the left neutral mounting plate structure and the right neutral mounting plate are in a locked state during operation.

6. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 5 is characterized in that: The transfer shaft (3.2) is rectangular, one long side of the transfer shaft (3.2) is hingedly connected to the fixed hinge (3.1), and the other long side is fixedly connected to the electrical component mounting plate (3.3).

7. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 1 is characterized in that: The intelligent control system structure (5) is an infrared camera, and whether a component is faulty is determined based on the infrared thermal image captured by the infrared camera.

8. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 7 is characterized in that: The steps to determine whether a component is faulty include: S1: Select 70% of the photos collected by the infrared camera as the training set, use the labelme annotation tool to create a segmented data set, and select the corresponding electrical components respectively; S2: Send the annotated label file and the original image of the electrical components inside the electric control box to the DeeplabV3+ model for training; S4: Determine the fault temperature threshold T ; S5: Extract the maximum temperature of electrical components and fault temperature threshold T If the judgment conditions are met, the corresponding component is judged to be faulty. If the conditions are not met, the corresponding component is judged to be normal.

9. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 8 is characterized in that: In step S4: Fault temperature threshold T It is set according to the operating temperature requirements of the equipment.

10. The novel quick-opening door infrared thermal imaging fault diagnosis explosion-proof electrical control box according to claim 8 is characterized in that: In step S5, the maximum temperature of the electrical component is extracted. Including: using YOLOv7 to perform preliminary inspection of the electrical components inside the electric control box, inputting the detected image into the DeeplabV3 semantic segmentation model for component segmentation, thereby separating multiple electrical components, and then extracting the maximum temperature of each electrical component based on the infrared thermal imager .

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