Integrated cable trench water level monitoring device

Abstract

The invention relates to the technical field of building electrical, and discloses an integrated cable trench water level monitoring device which comprises a cable trench, a mounting plate is arranged on the outer surface of the cable trench, a water level sensor is arranged on the upper surface of the mounting plate, a bottom plate is arranged at the top of the cable trench, and a stand column is fixedly connected to the top of the bottom plate. A first connecting buckle is arranged in the middle of the outer wall of the stand column, and a first butt joint buckle is arranged on one side of the first connecting buckle. The water level sensor is connected with the control box through the connecting line, water level changes can be accurately monitored in real time, the static pressure type sensor accurately measures the water level according to water pressure, compared with visual inspection, accuracy is higher, once the water level is abnormal, the water level sensor rapidly transmits signals to the control box, and the control box controls the audible and visual alarm to give an alarm in time. Therefore, cable soaking accidents are avoided, and safe and stable operation of a power system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of building electrical technology, and in particular to an integrated cable trench water level monitoring device. Background Art

[0002] In the field of building electrical design, cable trench waterproofing is crucial. Existing technologies generally use visual windows to check water levels and check valves for one-way drainage. However, through in-depth research on cable trench water level monitoring applications in multiple substations, it was found that the water level changes in cable trenches vary greatly in different environments. Some cable trenches near rivers or areas with high groundwater levels experience more frequent water accumulation. At the same time, the existing visual window water level inspection and check valve one-way drainage methods have exposed many problems in substations of different sizes. For example, in large substations, due to the wide distribution of cable trenches, manual visual inspections are difficult to conduct comprehensively and promptly. Furthermore, in small substations, although the check valve has a simple structure, long-term erosion by sewage and blockage by debris often leads to poor drainage. To address the shortcomings of existing cable trench water level monitoring technologies, an integrated cable trench water level monitoring device is proposed. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides an integrated cable trench water level monitoring device, which solves the problems raised in the above background technology.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an integrated cable trench water level monitoring device, comprising a cable trench, a mounting plate provided on the outer surface of the cable trench, a water level sensor provided on the upper surface of the mounting plate, a bottom plate provided on the top of the cable trench, a column fixedly connected to the top of the bottom plate, a first connecting buckle provided on the middle of the outer wall of the column, a first docking buckle provided on one side of the first connecting buckle, a first mounting bracket fixedly connected to the other side of the first connecting buckle, a control box provided on one side of the first mounting bracket, a top plate fixedly connected to the top of the column, an audible and visual alarm provided on the top of the top plate, and a mounting groove provided on the outer surface of the cable trench.

[0007] Preferably, a second connecting buckle is provided on the upper part of the outer wall of the column, a second docking buckle is provided on one side of the second connecting buckle, and the first docking buckle, the first connecting buckle, the second connecting buckle and the inner wall of the second docking buckle are all provided with anti-slip pads, and the inner diameter size of the first docking buckle, the first connecting buckle, the second connecting buckle and the second docking buckle matches the outer diameter size of the column.

[0008] Preferably, the other side of the second connecting buckle is fixedly connected to a U-shaped frame, the top of the U-shaped frame is fixedly connected to a first carrier plate, the bottom of the inner wall of the U-shaped frame is fixedly connected to a second carrier plate, the upper and lower ends of one side of the first mounting frame are fixedly connected to the first connecting buckle, and the upper and lower ends of one side of the U-shaped frame are fixedly connected to the second connecting buckle.

[0009] Preferably, a solar panel is provided on the top of the first carrier plate, and a battery installation cabinet is provided on the top of the second carrier plate.

[0010] Preferably, a grille cover is provided on the surface of the mounting plate, the water level sensor is wrapped by the grille cover, the grille cover is detachable, and the outer diameter of the mounting plate matches the inner diameter of the mounting groove.

[0011] Preferably, the water level sensor is a static pressure sensor, and the water level sensor is connected to the control box via a connecting line.

[0012] Preferably, the control box includes a data acquisition module, a processing module, a storage module, a communication module and an alarm control module.

[0013] (3) Beneficial effects

[0014] The present invention provides an integrated cable trench water level monitoring device, which has the following beneficial effects:

[0015] (1) The present invention can accurately monitor water level changes in real time by connecting the water level sensor to the control box through a connecting line. The static pressure sensor accurately measures the water level based on the water pressure, which is more accurate than visual inspection. Once the water level is abnormal, the water level sensor quickly transmits a signal to the control box, and the control box controls the sound and light alarm to sound an alarm in time to remind staff to deal with it, avoid cable flooding accidents, and ensure the safe and stable operation of the power system. After actual testing, when simulating the abnormal rise of the water level in the cable trench, the response time is greatly shortened compared with traditional visual inspection, effectively reducing the risk of cable flooding accidents.

[0016] (2) The present invention is connected by docking buckles, connecting buckles, anti-slip pads, and columns, and the inner diameters of the docking buckles and connecting buckles match the outer diameters of the columns. This design allows each component to be firmly installed and can adapt to complex working environments. In the complex environment of the cable trench, such as when subjected to vibrations and water flow impacts, the device can remain stable, reducing the possibility of loosening and displacement of components, ensuring that water level monitoring work is carried out continuously and reliably, and reducing the probability of equipment failure.

[0017] (3) In the present invention, a detachable grille cover is provided on the surface of the mounting plate, which can prevent the water level sensor from being interfered with and damaged by debris and staff during inspection, thereby ensuring the normal operation of the sensor. It is also convenient for the sensor to be disassembled for inspection, cleaning and maintenance when necessary, thereby extending the service life of the sensor, improving the overall maintenance convenience of the device, and improving the protection capability of the water level sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation plate of the present invention;

[0020] Figure 3 This is an overall schematic diagram of the first mounting frame of the circular shell in the present invention;

[0021] Figure 4 This is an overall schematic diagram of the U-shaped frame and related components of the present invention;

[0022] Figure 5 It is a schematic flow chart of the steps of the present invention.

[0023] In the figure: 1. Cable trench; 2. Mounting plate; 3. Water level sensor; 4. Bottom plate; 5. Column; 6. First connecting buckle; 7. First docking buckle; 8. First mounting bracket; 9. Control box; 10. Top plate; 11. Sound and light alarm; 12. Mounting slot; 13. Anti-slip mat; 14. Second connecting buckle; 15. Second docking buckle; 16. U-shaped frame; 17. First carrier plate; 18. Second carrier plate; 19. Solar panel; 20. Grille cover. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-5As shown, the present invention provides a technical solution: an integrated cable trench water level monitoring device, comprising a cable trench 1, a mounting plate 2 is provided on the outer surface of the cable trench 1, a water level sensor 3 is provided on the upper surface of the mounting plate 2, a bottom plate 4 is provided on the top of the cable trench 1, a column 5 is fixedly connected to the top of the bottom plate 4, a first connecting buckle 6 is provided in the middle of the outer wall of the column 5, a first docking buckle 7 is provided on one side of the first connecting buckle 6, a first mounting bracket 8 is fixedly connected to the other side of the first connecting buckle 6, a control box 9 is provided on one side of the first mounting bracket 8, a top plate 10 is fixedly connected to the top of the column 5, an audible and visual alarm 11 is provided on the top of the top plate 10, and a mounting groove 12 is provided on the outer surface of the cable trench 1. During the design process, full consideration was given to the coordinated work of various components and their adaptability to complex environments. For example, the water level sensor 3 uses a static pressure sensor because it is based on the principle of measuring water level by water pressure, can accurately sense water level changes, and is not overly affected by external factors such as light and electromagnetic interference. Through performance test comparison of different types of water level sensors 3 in the cable trench 1 environment, the static pressure sensor performs outstandingly in terms of accuracy and stability. It is connected to the control box 9 through a connecting line to ensure fast and stable data transmission, and can transmit signals to the control box 9 at the moment of abnormal changes in the water level.

[0026] Furthermore, a second connecting buckle 14 is provided on the upper part of the outer wall of the column 5, and a second docking buckle 15 is provided on one side of the second connecting buckle 14. The inner walls of the first docking buckle 7, the first connecting buckle 6, the second connecting buckle 14, and the second docking buckle 15 are all provided with anti-slip pads 13. The inner diameters of the first docking buckle 7, the first connecting buckle 6, the second connecting buckle 14, and the second docking buckle 15 match the outer diameter of the column 5. This design is based on the complex environmental factors in the cable trench 1 of a typical substation of the power grid. After simulation experiments, it has been verified that the connection structure greatly enhances the stability of the connection of the various components of the device, so that the first mounting frame 8, U-shaped frame 16 and other components can be firmly installed on the column 5. In the complex environment of the cable trench 1, no matter whether it is affected by the impact of water flow, vibration caused by equipment operation, or other external forces, the various components are not prone to loosening or displacement, ensuring the stability of the entire water level monitoring device and improving the anti-interference ability.

[0027] Furthermore, a U-shaped frame 16 is fixedly connected to the other side of the second connecting buckle 14, a first carrier plate 17 is fixedly connected to the top of the U-shaped frame 16, a second carrier plate 18 is fixedly connected to the bottom of the inner wall of the U-shaped frame 16, the upper and lower ends of one side of the first mounting frame 8 are fixedly connected to the first connecting buckle 6, and the upper and lower ends of one side of the U-shaped frame 16 are fixedly connected to the second connecting buckle 14. The arrangement of the U-shaped frame 16, the first carrier plate 17, and the second carrier plate 18 provides a stable installation platform for the solar panel 19 and the battery installation cabinet, so that the solar power supply system can be reasonably arranged, ensuring that the device can stably obtain and store electrical energy in a complex environment, reducing dependence on external power supply, and enhancing the independence and reliability of the device operation.

[0028] Furthermore, a solar panel 19 is provided on the top of the first carrier plate 17, and a battery installation cabinet is provided on the top of the second carrier plate 18. The solar panel 19 can convert solar energy into electrical energy and continuously collect energy when there is light during the day, thereby providing a green and sustainable source of electricity for the operation of the device, reducing dependence on traditional power grid power supply, and reducing long-term operating costs. It is particularly suitable for cable trench 1 areas where power supply is inconvenient or unstable; and the battery installation cabinet can store excess electricity generated by the solar panel 19, and power the device at night or when there is insufficient light, thereby ensuring stable operation of the device around the clock, avoiding interruption of water level monitoring due to power outages, and improving the reliability of the device operation.

[0029] Furthermore, a grille cover 20 is provided on the surface of the mounting plate 2, and the water level sensor 3 is wrapped by the grille cover 20. The grille cover 20 is detachable, and the outer diameter of the mounting plate 2 matches the inner diameter of the mounting groove 12. The grille cover 20 wraps the water level sensor 3. According to feedback from actual use, the grille cover 20 can effectively prevent debris from contacting the water level sensor 3. At the same time, it also effectively avoids the staff from bumping into the water level sensor 3 during routine inspections, thereby extending the service life of the water level sensor 3. In addition, the detachable grille cover 20 also brings great convenience to the maintenance work of the sensor and improves the anti-interference ability.

[0030] Furthermore, the water level sensor 3 is a static pressure sensor, and the water level sensor 3 is connected to the control box 9 by a connecting line. The static pressure sensor can accurately sense the subtle changes in the water level in the cable trench 1 by virtue of its principle of measuring water level based on water pressure, and is not excessively affected by external factors such as light and electromagnetic interference. Compared with the visual inspection of the existing technology, the accuracy of water level monitoring is greatly improved. By connecting to the control box 9 through the connecting line, fast and stable data transmission can be achieved, and the water level data collected by the sensor is transmitted to the control box 9 in real time. After receiving the data, the control box 9 can quickly analyze and process the data. Once the water level exceeds the normal range, it can immediately respond and control the sound and light alarm 11 to sound an alarm, promptly reminding the staff to take corresponding measures, effectively avoiding the occurrence of safety accidents such as cable soaking due to abnormal water level, and building a solid line of defense for the safe and stable operation of the power system.

[0031] Furthermore, the control box 9 includes a data acquisition module, a processing module, a storage module, a communication module and an alarm control module, and each module works together to achieve efficient processing of water level data and intelligent control of the equipment;

[0032] First, the data acquisition module mainly uses A / D conversion technology and signal conditioning technology. A / D conversion technology is responsible for converting the analog signal output by the water level sensor 3 into a digital signal. The use of a 24-bit A / D converter can provide high resolution, reduce quantization errors, and make the collected water level data more accurate. For example, in the process of the water level in the cable trench 1 slowly rising or falling, the low-resolution A / D converter may lose part of the water level change information due to the large quantization interval, resulting in inaccurate collected data. The 24-bit A / D converter can more accurately reflect the actual changes in the water level, ensuring the accuracy and reliability of the collected data. The signal conditioning technology is composed of amplifiers, filters and linearization circuits. The amplifier uses the INA128 operational amplifier, whose input offset voltage is as low as 50μV and has high The gain and low-noise characteristics can effectively amplify the weak signal of several millivolts to tens of millivolts output by the water level sensor 3. By reasonably setting the gain resistor, the signal can be amplified to the input range of 0-3V of the A / D converter. The filter adopts a second-order low-pass filter with a cutoff frequency of about 10Hz, such as a filter based on LM358. By selecting the resistance and capacitance values of R1=R2=10Ω and C1=C2=1.59μF, it can effectively attenuate high-frequency noise and allow low-frequency water level signals to pass smoothly, thereby improving signal quality. The linearization circuit adopts a polynomial fitting method to fit a polynomial function based on the sensor characteristic curve to the nonlinear relationship between the output of the water level sensor 3 and the water level. The amplified and filtered signal is corrected to make the output signal have a good linear relationship with the actual water level, which is convenient for subsequent data analysis and processing;

[0033] Then the processing module adopts embedded operating system technology (such as FreeRTOS) and algorithm processing technology. Among them, FreeRTOS, with its advantages of strong real-time performance and low resource consumption, can efficiently manage tasks such as data processing, communication, and alarm judgment in the water level monitoring scenario of cable trench 1. When the water level data changes rapidly, it can timely schedule data processing tasks to give priority to the latest data, and reasonably arrange communication tasks during data transmission to ensure that the data is stably uploaded to the remote monitoring center; the algorithm processing technology uses the Kalman filter algorithm to smooth the water level data, and effectively removes random noise through prediction and update steps. It can accurately estimate the real water level in the actual monitoring of cable trench 1, avoid misjudgment caused by noise interference, and then based on the preset water level The threshold algorithm determines whether the water level is normal. For example, in cable trench 1, the lower limit threshold Hmin = 0.2 meters and the upper limit threshold Hmax = 0.8 meters are set based on historical water level data and the safe operation requirements of power equipment. After receiving the filtered water level data, it is compared with the threshold. If it is lower than Hmin, a low water level alarm is triggered, and if it is higher than Hmax, a high water level alarm is triggered. If it is between the two, it is judged to be normal. For further optimization, a dynamic threshold adjustment mechanism is introduced. Combined with the surrounding environmental parameters of cable trench 1 (such as rainfall, groundwater level changes, etc.) and historical water level data, a machine learning algorithm is used to analyze historical and real-time rainfall data during the rainy season to appropriately increase Hmax to avoid frequent false alarms, and reduce Hmin during the dry season to ensure normal operation of the equipment.

[0034] In addition, the storage module uses flash storage technology and file system technology (FAT). Flash storage technology uses NAND Flash as the storage medium, which is suitable for storing large amounts of historical water level data and equipment operation records. File system technology (FAT) divides the storage device into different files and directories, making data storage and reading more orderly and efficient. For example, water level data can be stored in chronological order to facilitate subsequent query and analysis;

[0035] Finally, the communication module adopts 5G mobile communication technology, which has the advantages of high speed, low latency and large-capacity connection. It accesses the 5G network through the 5G communication chip and establishes a stable connection with the base station. It can quickly package the data collected by the water level sensor 3, the equipment operation status and other information into data packets that comply with the 5G communication protocol and send them out. At the same time, it receives instructions from the remote monitoring center. In some large-scale power systems, multiple cable trench 1 water level monitoring devices are connected to the remote monitoring center through the 5G communication module. The monitoring center can grasp the water level conditions of each cable trench 1 in real time, realize centralized management and unified scheduling, and then when the processing module (microprocessor module) determines that the water level is abnormal, it sends an alarm instruction to the alarm control module. After receiving the instruction, the alarm control module provides a suitable driving signal to the sound and light alarm 11 through the internal driving circuit. The power amplifier component in the driving circuit amplifies the weak signal, causing the speaker to emit a loud and clear alarm sound. At the same time, the control circuit controls the light to flash, using a striking light signal to alert the surrounding personnel. For example, when the water level in the cable trench 1 exceeds the preset safe water level, the processing module quickly transmits the alarm instruction to the alarm control module, which immediately drives the sound and light alarm 11 to start. The high-decibel alarm sound and flashing light can promptly remind nearby staff to pay attention. At the same time, the communication module uses 5G technology to quickly transmit the alarm information to the remote monitoring center, so that relevant personnel can grasp the situation in time and take measures.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated cable trench water level monitoring device, comprising a cable trench (1), characterized in that: The outer surface of the cable trench (1) is provided with a mounting plate (2), the upper surface of the mounting plate (2) is provided with a water level sensor (3), the top of the cable trench (1) is provided with a bottom plate (4), the top of the bottom plate (4) is fixedly connected to a column (5), the middle of the outer wall of the column (5) is provided with a first connecting buckle (6), one side of the first connecting buckle (6) is provided with a first docking buckle (7), the other side of the first connecting buckle (6) is fixedly connected to a first mounting frame (8), one side of the first mounting frame (8) is provided with a control box (9), the top of the column (5) is fixedly connected to a top plate (10), the top of the top plate (10) is provided with an audible and visual alarm (11), and the outer surface of the cable trench (1) is provided with a mounting groove (12).

2. The integrated cable trench water level monitoring device according to claim 1, characterized in that: A second connecting buckle (14) is provided on the upper portion of the outer wall of the column (5), a second docking buckle (15) is provided on one side of the second connecting buckle (14), and anti-slip pads (13) are provided on the inner walls of the first docking buckle (7), the first connecting buckle (6), the second connecting buckle (14), and the second docking buckle (15), and the inner diameters of the first docking buckle (7), the first connecting buckle (6), the second connecting buckle (14), and the second docking buckle (15) match the outer diameter of the column (5).

3. The integrated cable trench water level monitoring device according to claim 2, characterized in that: The other side of the second connecting buckle (14) is fixedly connected to a U-shaped frame (16), the top of the U-shaped frame (16) is fixedly connected to a first carrier plate (17), the bottom of the inner wall of the U-shaped frame (16) is fixedly connected to a second carrier plate (18), the upper and lower ends of one side of the first mounting frame (8) are fixedly connected to the first connecting buckle (6), and the upper and lower ends of one side of the U-shaped frame (16) are fixedly connected to the second connecting buckle (14).

4. The integrated cable trench water level monitoring device according to claim 3, characterized in that: A solar panel (19) is provided on the top of the first carrier plate (17), and a battery installation cabinet is provided on the top of the second carrier plate (18).

5. The integrated cable trench water level monitoring device according to claim 1, characterized in that: A grille cover (20) is provided on the surface of the mounting plate (2), the water level sensor (3) is wrapped by the grille cover (20), the grille cover (20) is detachable, and the outer diameter of the mounting plate (2) matches the inner diameter of the mounting groove (12).

6. The integrated cable trench water level monitoring device according to claim 1, characterized in that: The water level sensor (3) is a static pressure sensor, and the water level sensor (3) is connected to the control box (9) via a connecting line.

7. The integrated cable trench water level monitoring device according to claim 1, characterized in that: The control box (9) internally comprises a data acquisition module, a processing module, a storage module, a communication module and an alarm control module.

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