Waterproof top cover for prefabricated cabin

Abstract

The invention provides a waterproof top cover for a prefabricated cabin, and belongs to the technical field of power equipment structures, and the waterproof top cover comprises a first top plate, an internal rainproof beam arranged at the bottom of the first top plate, and a fixing assembly mounted at the bottom of the internal rainproof beam. The split type top plate combination is matched with the precise bending butt joint mechanism, the welding workload is greatly reduced while the structural strength is guaranteed, the problems of large-area welding seam polishing and rusting are solved, reliable sealing between modules is achieved through the butt joint bending clamping structure, the defect of water seepage of joints of a traditional modular top cover is overcome, and the service life of the modular top cover is prolonged. According to the integrally-designed water dripping edge system, a traditional welding or screw fixing mode is replaced with an innovative bending forming technology, the installation procedure is simplified, the protection grade is improved, the overall weight is reduced through the optimized structural layout, transportation and hoisting operation is facilitated, and the production cost is reduced while the production efficiency is improved. And the waterproof performance and the installation convenience of the product are improved.

Description

A waterproof roof for prefabricated cabins Technical Field

[0001] This invention belongs to the technical field of power equipment structure, specifically relating to a waterproof top cover for a prefabricated cabin. Background Technology

[0002] Against the backdrop of the rapid development of smart grids and prefabricated substations, the prefabricated cabin, as a core facility integrating and protecting internal precision electrical equipment, directly determines the safe operation of the internal equipment through its structural reliability. The top cover, as the critical protective component at the top of the prefabricated cabin, is constantly exposed to harsh environmental factors such as rain, snow, wind, sand, and ultraviolet radiation; therefore, its waterproof performance and long-term durability have become key issues in the design and manufacturing of prefabricated cabins.

[0003] Currently, prefabricated waterproof roof covers mostly adopt welding and splicing processes, which are formed by welding sections according to the size of the plates and then sealing them with waterproof glue and supporting the frame. However, there are problems such as large welding workload, need for grinding after welding, and easy corrosion of weld seams. The integrated structure makes the components bulky and inconvenient to install, while the modular roof cover has the defect of insufficient waterproof performance of the joints. In addition, the existing rainproof measures mainly rely on welding or screw fixing of the drip edge. The former increases the process complexity, and the latter reduces the protection level, and both may interfere with hoisting operations. Summary of the Invention

[0004] The purpose of this invention is to provide a waterproof top cover for prefabricated cabins, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waterproof roof for a prefabricated cabin, comprising a first roof plate, an internal rainproof beam disposed at the bottom of the first roof plate, a fixing component installed at the bottom of the internal rainproof beam, a first rainproof reinforcing beam longitudinally fixed to the top of the first roof plate, a second roof plate fixed to the outside of the first roof plate, and a first butt joint bend disposed on the outside of the second roof plate.

[0006] Furthermore, a second rainproof reinforcing beam is fixedly installed horizontally at the center of the top of the first top plate, and a third top plate is fixedly installed on the outer side of the first top plate.

[0007] Furthermore, the outer side of the third top plate is provided with a second mating bend, which is engaged with the first mating bend.

[0008] Furthermore, the outer side of the first top plate is provided with an end drip edge, the bottom of the first top plate is provided with a side drip edge, and the bottom of the first top plate is provided with a middle drip edge.

[0009] Furthermore, the fixing assembly includes a fixing plate fixedly installed at the bottom of the second top plate and a support column fixedly installed on the outside of the fixing plate.

[0010] Furthermore, a drip edge plug welding hole is provided at the bottom of the middle drip edge, a first drip edge bend is provided on one side of the middle drip edge, and a second drip edge bend is provided on the other side of the middle drip edge.

[0011] Furthermore, a support beam is fixedly installed at the bottom of the first top plate, and a reinforcing rib is fixedly installed at the bottom of the first top plate and on the outside of the support beam.

[0012] Furthermore, a first monitoring point is preset in the middle of the first top plate, the second top plate and the third top plate. The first monitoring point integrates a first environmental humidity sensor for collecting first environmental humidity data. A second monitoring point is preset at the intersection of the internal water guiding channels formed by the end drip edge, the side drip edge and the middle drip edge. The second monitoring point integrates a second environmental humidity sensor for collecting second environmental humidity data.

[0013] Furthermore, the first ambient humidity data collected by the first ambient humidity sensor and the second ambient humidity data collected by the second ambient humidity sensor are subjected to a first logical processing. The first logical processing compares and analyzes the first ambient humidity data and the second ambient humidity data to generate a first comparison difference. Based on the first comparison difference, a second logical processing is performed. The second logical processing determines the state of the first comparison difference according to a preset humidity gradient threshold. When the first comparison difference continuously exceeds the humidity gradient threshold, a first abnormal state signal is generated.

[0014] Furthermore, based on the first abnormal state signal, a first early warning processing procedure is initiated. The first early warning processing procedure binds the first abnormal state signal with the geographical information of the corresponding first monitoring point and second monitoring point to generate a first location early warning information. The first location early warning information is used to indicate that there is moisture accumulation or potential leakage risk in a specific area of ​​the surface of the composite top cover or the internal water guiding channel, and triggers a maintenance inspection command.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: by adopting a split-type top plate combination with a precision bending and docking mechanism, the amount of welding work is greatly reduced while ensuring structural strength, avoiding large-area weld grinding and corrosion problems. The docking bending snap-fit ​​structure achieves reliable sealing between modules, overcoming the defects of water leakage at the joints of traditional modular top covers. The integrated drip edge system replaces the traditional welding or screw fixing method with an innovative bending forming process, which simplifies the installation process and improves the protection level. The optimized structural layout reduces the overall weight, making transportation and hoisting operations easier. While reducing production costs, it improves the waterproof performance and installation convenience of the product. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Specifically: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the bottom of the overall structure of the present invention; Figure 3 is a schematic diagram of the drip edge and top plate bending structure of the present invention; Figure 4 is a schematic diagram of the welding and joining of the top plate structure of the present invention; Figure 5 is a schematic diagram of the welding of the rainproof reinforcing beam structure of the present invention; Figure 6 is a schematic diagram of the drip edge structure of the present invention.

[0017] In the diagram: 1. First roof plate; 2. First rainproof reinforcing beam; 3. Second roof plate; 30. First butt joint bend; 4. Second rainproof reinforcing beam; 5. Third roof plate; 50. Second butt joint bend; 6. End drip edge; 7. Side drip edge; 8. Middle drip edge; 80. Drip edge plug weld hole; 81. First bend of drip edge; 82. Second bend of drip edge; 9. Support beam; 10. Reinforcing rib; 11. Internal rainproof beam; 12. Fixing component; 120. Fixing plate; 121. Support column. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0021] Referring to Figures 1 to 6, this embodiment provides a waterproof roof for a prefabricated cabin, including a first top plate 1, an internal rainproof beam 11 disposed at the bottom of the first top plate 1, a fixing component 12 installed at the bottom of the internal rainproof beam 11, a first rainproof reinforcing beam 2 longitudinally fixed to the top of the first top plate 1, a second top plate 3 fixed to the outside of the first top plate 1, and a first butt bend 30 disposed on the outside of the second top plate 3.

[0022] The first waterproof barrier is formed by the combination of the first top plate 1 and the internal rainproof beam 11. The internal rainproof beam 11 not only provides structural support but also plays a role in guiding the flow. The longitudinal arrangement of the first rainproof reinforcing beam 2 enhances the deformation resistance of the top plate. The combination design of the second top plate 3 and the first butt joint bend 30 realizes modular assembly, avoiding the complex process problems caused by traditional integral welding. The installation method of the fixed component 12 not only ensures the structural stability but also facilitates later maintenance, reduces the amount of welding work, improves production efficiency, and ensures waterproof performance.

[0023] Specifically, a second rainproof reinforcing beam 4 is fixedly installed horizontally at the center of the top of the first top plate 1, and a third top plate 5 is fixedly installed on the outer side of the first top plate 1.

[0024] In particular, by adding a second rainproof reinforcing beam 4 horizontally at the center of the top of the first top plate 1, a cross support network is formed with the first rainproof reinforcing beam 2 in the longitudinal direction, which further enhances the overall rigidity and deformation resistance of the top plate. The third top plate 5 allows the top cover to be flexibly combined according to actual size requirements. This split design not only facilitates transportation and installation, but also effectively controls the weight of individual components, solving the problem of the bulkiness of traditional integrated structures.

[0025] Furthermore, a second mating bend 50 is provided on the outer side of the third top plate 5, and the second mating bend 50 is interlocked with the first mating bend 30.

[0026] The snap-fit ​​design of the second butt bend 50 and the first butt bend 30 forms a reliable mechanical connection, avoiding the deformation risk caused by relying solely on welding. This connection method can not only ensure assembly accuracy, but also facilitate on-site installation and adjustment. The mutual cooperation of the bending structures also forms a labyrinthine waterproof channel, which effectively prevents rainwater penetration and solves the problem of insufficient waterproof performance at the joints of the modular top cover.

[0027] Preferably, the outer side of the first top plate 1 is provided with an end drip edge 6, the bottom of the first top plate 1 is provided with a side drip edge 7, and the bottom of the first top plate 1 is provided with a middle drip edge 8.

[0028] The triple arrangement of the end drip edge 6, the side drip edge 7, and the middle drip edge 8 constitutes a complete water guiding system. The end drip edge 6 is responsible for intercepting and guiding lateral rainwater, the side drip edge 7 ensures the waterproof effect at the edges, and the middle drip edge 8 handles the front rainwater. This three-dimensional drainage design greatly reduces the risk of rainwater seeping into the prefabricated cabin and has more reliable waterproof performance compared to the traditional single drip edge structure.

[0029] Furthermore, the fixing assembly 12 includes a fixing plate 120 fixedly installed at the bottom of the second top plate 3, and a support column 121 fixedly installed on the outside of the fixing plate 120.

[0030] The fixing assembly 12, consisting of the fixing plate 120 and the support column 121, adopts a split design, which ensures installation strength and facilitates adjustment. The fixing method of the fixing plate 120 and the second top plate 3 avoids the deformation problem caused by traditional welding fixing. The setting of the support column 121 provides stable support force. This fixing structure simplifies the installation process, improves assembly efficiency, and ensures the long-term stability of the structure.

[0031] Furthermore, a drip edge plug welding hole 80 is provided at the bottom of the middle drip edge 8, a first drip edge bend 81 is provided on one side of the middle drip edge 8, and a second drip edge bend 82 is provided on the other side of the middle drip edge 8.

[0032] The design of the drip edge plug weld hole 80 enables a reliable connection between the middle drip edge 8 and the top plate, avoiding deformation problems caused by continuous welding. The double bending structure of the first bend 81 and the second bend 82 of the drip edge not only enhances the rigidity of the drip edge itself, but also forms multiple waterproof barriers with the top plate. The combined use of plug welding and bending simplifies the manufacturing process and improves the reliability of waterproofing, solving the problems of complex installation and poor protective effect of traditional drip edges.

[0033] Furthermore, a support beam 9 is fixedly installed at the bottom of the first top plate 1, and a reinforcing rib 10 is fixedly installed at the bottom of the first top plate 1 and on the outside of the support beam 9.

[0034] The combined design of the support beam 9 and the reinforcing rib 10 provides a reliable bottom support system for the roof. The support beam 9, as the main load-bearing component, bears most of the load of the roof, while the reinforcing rib 10 effectively prevents local deformation. This support structure design rationally arranges the stress points, ensuring structural strength while avoiding excessive use of materials, and achieving lightweight design while ensuring reliability.

[0035] In use, the first top plate 1, the internal rainproof beam 11 and the first rainproof reinforcing beam 2 of the first welding unit, the second top plate 3 and its first butt bend 30 of the second welding unit, and the third top plate 5 and its second butt bend 50 of the third welding unit are processed respectively. After the pre-welding of each unit is completed, the first butt bend 30 and the second butt bend 50 are mechanically snapped together to achieve precise positioning and complete the final assembly welding. The middle drip edge 8 is matched with the top plate through its first drip edge bend 81 and the second drip edge bend 82, and is fixed by plug welding through the drip edge plug welding hole 80. Finally, the fixing component 12 composed of the fixing plate 120 and the support column 121, and the bottom support system composed of the support beam 9 and the reinforcing rib 10 are installed.

[0036] In summary, by adopting a three-dimensional waterproof support system formed by the first top plate 1, the internal rainproof beam 11, the first rainproof reinforcing beam 2, and the second rainproof reinforcing beam 4, and by achieving precise assembly through the snap-fit ​​of the first butt bend 30 and the second butt bend 50, a multi-layered water guiding system is formed in conjunction with the end drip edge 6, the side drip edge 7, and the middle drip edge 8. The split design of the fixing component 12 simplifies the installation process. The reasonable arrangement of the support beam 9 and the reinforcing rib 10 ensures structural strength while achieving lightweighting. The overall modular production improves manufacturing precision. The connection method combining plug welding and bending ensures waterproof reliability and reduces welding deformation. The integrated design of the drip edge and the top plate not only enhances structural rigidity but also simplifies the installation process. Ultimately, a comprehensive optimization effect of improved waterproof performance, reduced production costs, and improved installation efficiency is achieved.

[0037] In this embodiment, firstly, based on the structural design drawings of the waterproof roof of the prefabricated cabin, the first monitoring point is accurately marked in the middle area of ​​the first, second, and third roof slabs to ensure that each roof slab corresponds to one independent point, with uniform spacing between points and coverage of the core area of ​​the roof slab; at the same time, the second monitoring point is marked at the intersection of the internal water guiding channels formed by the end drip edge, the side drip edge, and the middle drip edge. This point needs to be aligned with the key node where the water flow converges in the water guiding channel to ensure accurate capture of moisture changes within the channel.

[0038] The first ambient humidity sensor is embedded into each of the first monitoring points. The connection between the sensor and the top plate is sealed with a sealing ring to prevent rainwater from seeping into the installation gaps. At the same time, it is ensured that the sensor probe is completely exposed to the environment on the surface of the top cover to ensure the authenticity of the collected data. The second ambient humidity sensor is fixed on the preset mounting base at each of the second monitoring points. The sensor probe is adjusted to face the inside of the water guide channel so that it can directly contact the moisture or water flow in the channel. Similarly, sealing measures are used to ensure the waterproof performance of the sensor itself.

[0039] Connect the power supply to all sensors, set the sensor data acquisition frequency (it is recommended to acquire data once every 5 minutes, which can be adjusted according to the actual usage environment), and start the data acquisition function. The first ambient humidity sensor continuously acquires the ambient humidity data of the corresponding central area of ​​the top plate, which is defined as the first ambient humidity data; the second ambient humidity sensor continuously acquires the ambient humidity data of the corresponding water channel intersection, which is defined as the second ambient humidity data. All acquired raw data is transmitted to the subsequent logic processing module in real time and temporarily stored.

[0040] The logic processing module first receives the first and second ambient humidity data collected and transmitted in the first step. It performs integrity verification on the two sets of data, eliminating missing data or abnormally high data (such as data with humidity values ​​exceeding the reasonable range of 0-100%RH) caused by sensor failure or signal interference, ensuring the validity of the data involved in the processing. According to the principle of spatial correspondence, it matches the data of the first monitoring point and the second monitoring point within the same area one by one (for example, the data of the first monitoring point in the middle of the first roof plate corresponds to the data of the second monitoring point at the intersection of the water guide channel connected to the roof plate), forming multiple pairs of humidity data combinations to avoid cross-contamination of data from different areas.

[0041] For each pair of ambient humidity data (first and second), a comparative analysis is performed. Specifically, the difference between the first and second ambient humidity data is calculated by subtracting the second ambient humidity data from the first data. This difference is defined as the first comparison difference. After calculating all pairs of data, all first comparison differences are compiled and summarized as input data for the second logical processing.

[0042] In the logic processing module, a humidity gradient threshold is pre-entered. This threshold needs to be determined in conjunction with factors such as the usage environment of the prefabricated cabin (e.g., high temperature and high humidity areas, arid and low rainfall areas) and the waterproof design standards of the top cover (e.g., the preset threshold is 15%RH, which can be optimized based on actual debugging results). This threshold serves as the core basis for judging whether there is an anomaly. All first comparison differences generated in the second step are received and classified and stored according to the corresponding monitoring point combinations to ensure that each difference can be traced back to the corresponding first and second monitoring points. Each first comparison difference is continuously tracked and monitored, and its changing trend over time is recorded. It is determined whether the difference continuously exceeds the preset humidity gradient threshold, and the duration must meet the preset requirements (e.g., continuous for 30 minutes or more to avoid misjudgment due to instantaneous fluctuations). If a certain first comparison difference meets the condition of continuously exceeding the humidity gradient threshold, the corresponding monitoring point area is determined to be in an abnormal state; if it does not meet the condition, it is determined to be in a normal state. For the combination of monitoring points determined to be in an abnormal state, a corresponding first abnormal state signal is generated. This signal must contain key information such as the first monitoring point number, the second monitoring point number, the specific value of the first comparison difference, and the duration of continuous exceeding the threshold, which serves as the trigger signal for initiating the early warning processing procedure.

[0043] The early warning processing module receives the first abnormal state signal generated in the third step, analyzes the key information in the signal, and extracts the relevant information of the corresponding first and second monitoring points. It then calls upon the structural geographic information database of the prefabricated waterproof roof, which pre-stores the specific geographic coordinates (e.g., the middle of the first roof slab, the intersection of water channels A) and the corresponding regions (e.g., the left side of the roof, the water channel node in the middle of the roof) of all the first and second monitoring points. The parsed monitoring point information is precisely bound to the geographic information in the database to clarify the specific physical location corresponding to the abnormal state.

[0044] Based on the bound monitoring point information and geographical information, a first location-based early warning message is generated. This message must clearly include: the type of anomaly (moisture accumulation or potential leakage risk), the specific location of the anomaly (e.g., potential leakage risk at the intersection of the central area of ​​the first roof slab and the corresponding water diversion channel), the first comparison difference data, the duration of the anomaly, and the risk level (which can be divided according to the magnitude of exceeding the threshold, such as mild, moderate, and severe), ensuring that maintenance personnel can quickly grasp the core situation of the anomaly. The generated first location-based early warning message is pushed out through a preset communication method (e.g., wireless transmission to the maintenance management platform, local audible and visual alarm device), and the corresponding maintenance inspection command is automatically triggered. This command must clearly specify the maintenance task (e.g., checking the roof sealing of a certain area, checking the water diversion channel dredging), task priority, completion deadline, and other requirements, ensuring that maintenance personnel can respond promptly and carry out targeted inspection and maintenance work.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A waterproof roof for a prefabricated cabin, characterized in that: It includes a first top plate (1), an internal rainproof beam (11) disposed at the bottom of the first top plate (1), a fixing component (12) installed at the bottom of the internal rainproof beam (11), a first rainproof reinforcing beam (2) longitudinally fixed to the top of the first top plate (1), a second top plate (3) fixed to the outside of the first top plate (1), and a first butt bend (30) disposed on the outside of the second top plate (3).

2. The waterproof top cover for a prefabricated cabin according to claim 1, characterized in that: A second rainproof reinforcing beam (4) is fixedly installed horizontally at the center of the top of the first top plate (1), and a third top plate (5) is fixedly installed on the outer side of the first top plate (1).

3. The waterproof top cover for a prefabricated cabin according to claim 2, characterized in that: The outer side of the third top plate (5) is provided with a second butt bend (50), which is engaged with the first butt bend (30).

4. A waterproof roof for a prefabricated cabin according to claim 3, characterized in that: The outer side of the first top plate (1) is provided with an end drip edge (6), the bottom of the first top plate (1) is provided with a side drip edge (7), and the bottom of the first top plate (1) is provided with a middle drip edge (8).

5. A waterproof top cover for a prefabricated cabin according to claim 4, characterized in that: The fixing component (12) includes a fixing plate (120) fixedly installed at the bottom of the second top plate (3) and a support column (121) fixedly installed on the outside of the fixing plate (120).

6. A waterproof roof for a prefabricated cabin according to claim 5, characterized in that: The bottom of the intermediate drip edge (8) is provided with a drip edge plug welding hole (80), one side of the intermediate drip edge (8) is provided with a drip edge first bend (81), and the other side of the intermediate drip edge (8) is provided with a drip edge second bend (82).

7. A waterproof roof for a prefabricated cabin according to claim 6, characterized in that: A support beam (9) is fixedly installed at the bottom of the first top plate (1), and a reinforcing rib (10) is fixedly installed at the bottom of the first top plate (1) and on the outside of the support beam (9).

8. A waterproof roof for a prefabricated cabin according to claim 7, characterized in that: A first monitoring point is preset in the middle of the first top plate (1), the second top plate (3) and the third top plate (5). The first monitoring point integrates a first environmental humidity sensor for collecting first environmental humidity data. A second monitoring point is preset at the intersection of the internal water guiding channel formed by the end drip edge (6), the side drip edge (7) and the middle drip edge (8). The second monitoring point integrates a second environmental humidity sensor for collecting second environmental humidity data.

9. A waterproof roof for a prefabricated cabin according to claim 8, characterized in that: The first ambient humidity data collected by the first ambient humidity sensor and the second ambient humidity data collected by the second ambient humidity sensor are subjected to a first logical processing. The first logical processing compares and analyzes the first ambient humidity data and the second ambient humidity data to generate a first comparison difference. The second logic processing is performed based on the first comparison difference. The second logic processing determines the state of the first comparison difference according to a preset humidity gradient threshold. When the first comparison difference continues to exceed the humidity gradient threshold, a first abnormal state signal is generated.

10. A waterproof top cover for a prefabricated cabin according to claim 9, characterized in that: Based on the first abnormal state signal, a first early warning processing procedure is initiated. The first early warning processing procedure binds the first abnormal state signal with the geographical information of the corresponding first monitoring point and second monitoring point to generate a first location early warning information. The first positioning warning information is used to indicate that there is moisture accumulation or potential leakage risk in a specific area of ​​the composite top cover surface or the internal water guiding channel, and to trigger a maintenance inspection command.

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