Waterproof and moistureproof automatic detection device for cable well

Abstract

The invention relates to the technical field of cable well waterproof detection, and discloses a cable well waterproof and moisture-proof automatic detection device which comprises an electric box, the electric box comprises a water detection signal transmitting unit, and an intelligent control and data analysis unit is arranged on the surface of the water detection signal transmitting unit. A wireless signal receiving and alarming unit is arranged on the surface of the water measurement signal transmitting unit, and heat dissipation mechanisms are arranged on the two sides of the electric box respectively. The water measuring signal transmitting unit comprises a direct-current power source positive electrode which is fixedly connected to the interior of the electric box. The waterproof and moistureproof automatic detection device for the cable well can immediately give an alarm through the alarm and send an alarm signal to an operator on duty, so that operation and maintenance personnel can know the alarm at the first time and can quickly position a fault position and grasp a water accumulation level, time is bought for timely disposal, and the power supply fault risk caused by short circuit due to water immersion of a cable is greatly reduced; and the effects of nipping in the bud and avoiding property loss are achieved.

Description

Technical Field

[0001] This invention relates to the field of waterproof testing technology for cable wells, specifically to an automatic testing device for waterproof and moisture-proof cable wells. Background Technology

[0002] With the development of urban power grids, railway stations, and industrial plants, cable wells, as critical nodes in power transmission, are susceptible to water accumulation due to their enclosed underground environment caused by rainwater and groundwater. This water accumulation can lead to cable insulation aging, short circuits, and other faults, seriously threatening power supply stability. Currently, most mainstream cable well water accumulation detection devices are based on mechanical contact or simple electronic sensing technology, which can only provide basic water accumulation warnings and fill some gaps in manual inspections.

[0003] However, the existing devices have obvious shortcomings: First, manual inspection by personnel is limited by space, and the safety of personnel cannot be effectively guaranteed; second, there is a lack of equipment status monitoring, high standby power consumption, and insufficient reliability and battery life; third, the detection threshold is fixed, there is no data analysis and optimization capability, and poor environmental adaptability; fourth, the alarm linkage and remote push mechanism is imperfect, which is not conducive to the rapid scheduling of operation and maintenance resources. Therefore, it is necessary to design an automatic detection device for waterproof and moisture-proof cable wells. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic detection device for waterproofing and moisture-proofing cable wells, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic detection device for waterproofing and moisture-proofing of cable wells, comprising an electrical box, wherein the electrical box includes a water measurement signal transmitting unit, the surface of the water measurement signal transmitting unit is provided with an intelligent control and data analysis unit, the surface of the water measurement signal transmitting unit is provided with a wireless signal receiving alarm unit, and heat dissipation mechanisms are respectively provided on both sides of the electrical box; The water measurement signal transmitting unit includes a positive terminal of a DC power supply, which is fixedly connected inside the electrical box. One end of the positive terminal of the DC power supply is connected to a U-shaped water measurement metal plate, one end of the U-shaped water measurement metal plate is connected to a water measurement control PCB circuit board, one end of the water measurement control PCB circuit board is connected to an intelligent data analysis system, and one end of the intelligent data analysis system is connected to an execution wireless signal transmitter.

[0006] Preferably, the U-shaped water-measuring metal sheet adopts a symmetrical U-shaped structure with a spacing of 2mm between the metal sheets. It is vertically installed in the water-prone area at the bottom of the cable well. When the water surface comes into contact with the two metal sheets, a conductive circuit is formed, and a low-level trigger signal is output to the water-measuring control PCB circuit board.

[0007] Preferably, the intelligent control and data analysis unit includes a power supply management module, which is located inside the electrical box. One end of the power supply management module is connected to an embedded control chip, one end of the embedded control chip is connected to a data storage logic control module, and one end of the data storage logic control module is connected to a threshold optimization algorithm program.

[0008] Preferably, the data storage logic control module adopts a multi-level trigger mode, with preset warning thresholds and alarm thresholds, triggering alarm commands of different levels respectively. When the data storage logic control module is working, the water measurement control PCB circuit board has a built-in filter circuit to filter out weak current interference caused by humid air. Only when a stable conductive signal is input for more than 2 seconds is it determined to be a valid water accumulation signal. In addition, after the initial installation, 72 hours of environmental humidity data are collected to establish a humidity-interference current baseline and automatically adjust the threshold parameters of the filter circuit. Furthermore, if the water accumulation signal disappears within 30 minutes after the alarm and the environmental humidity is >90%, it is determined to be a "false alarm due to humidity interference" and the filter threshold is automatically increased. If there are more than 3 consecutive real water accumulation alarms, the current threshold is maintained.

[0009] Preferably, the wireless signal receiving alarm unit includes a DC power supply negative terminal, which is located inside the electrical box. One end of the DC power supply negative terminal is connected to a wireless signal receiver, one end of the wireless signal receiver is connected to an audible and visual alarm, and one end of the audible and visual alarm is connected to a remote communication module.

[0010] Preferably, the built-in audible and visual alarm of the electrical box can emit a buzzer alarm of more than 85dB and a red flashing warning when activated. The power supply has a built-in low power consumption mode, and the power consumption of the whole machine is ≤0.5W when there is no water accumulation. After the alarm is triggered, it automatically switches to the working mode to ensure stable signal transmission. In addition, the wireless signal transmitter (using a 433MHz radio frequency module) sends the alarm signal and location code (to distinguish different cable wells) to the receiving end.

[0011] Preferably, the heat dissipation mechanism includes a heat dissipation mesh plate, which is disposed on the left and right sides of the electrical box. Bolts are threaded inside the heat dissipation mesh plate, and one end of the bolts is threaded inside the electrical box.

[0012] Compared with the prior art, the present invention provides an automatic detection device for waterproofing and moisture-proofing cable wells, which has the following advantages: This automatic waterproof and moisture-proof detection device for cable wells utilizes a collaborative mechanism of "conductive circuit triggering + intelligent signal filtering + graded early warning alarm" to eliminate the need for manual inspections, effectively ensuring personnel safety. It automates the entire process from initial water accumulation monitoring to emergency response. Leveraging RC filtering circuits and multi-dimensional signal judgment rules, it effectively filters out interference from humid air and fog, significantly reducing false alarm rates. The graded early warning and high-frequency signal push design, combined with local audible and visual alerts and remote precise push, immediately sends alarm signals to on-duty personnel via alarm devices, ensuring maintenance staff are informed immediately. This allows for rapid fault location and assessment of water accumulation levels, buying time for timely intervention and significantly reducing the risk of power outages caused by water-induced short circuits in cables. It effectively prevents potential property damage. The device can be installed remotely, regardless of location, whether in the cable well area, office, or elsewhere. Furthermore, its low-power standby mode and timed heartbeat feedback mechanism reduce energy consumption while ensuring long-term stable operation, improving the device's endurance and reliability.

[0013] This automatic waterproof and moisture-proof detection device for cable wells, relying on a local storage module and data analysis optimization algorithms, can automatically record key data on water accumulation events and conduct historical comparative analysis. Through strategies such as threshold adaptive adjustment and seasonal mode switching, it dynamically calibrates detection parameters. This data closed-loop optimization capability allows the device to gradually adapt to the monitoring needs of cable wells in different environments (such as rainy season and dry season) and regions, reducing the probability of subsequent false alarms and missed alarms. At the same time, optimized recording facilitates operation and maintenance traceability, reduces long-term maintenance costs, and achieves continuous improvement in monitoring capabilities. In addition, the device can be installed in multiple locations, thereby improving detection efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in 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: Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the part of the present invention; Figure 3 This is a schematic diagram of the working process of the device of the present invention; Figure 4 This is a schematic diagram of the water measurement signal transmission unit of the present invention; Figure 5 This is a schematic diagram of the intelligent control and data analysis unit of the present invention; Figure 6 This is a schematic diagram of the wireless signal receiving alarm unit of the present invention.

[0015] In the diagram: 1. Electrical box; 2. Water measurement signal transmitting unit; 21. DC power supply positive terminal; 22. U-shaped water measurement metal plate; 23. Water measurement control PCB circuit board; 24. Intelligent data analysis; 25. Execution wireless signal transmitter; 3. Intelligent control and data analysis unit; 31. Power supply management module; 32. Embedded control chip; 33. Data storage logic control module; 34. Threshold optimization algorithm program; 4. Wireless signal receiving alarm unit; 41. DC power supply negative terminal; 42. Wireless signal receiver; 43. Audible and visual alarm; 44. Remote communication module; 5. Heat dissipation mechanism; 51. Heat dissipation mesh plate; 52. Bolt. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0018] This invention provides the following technical solutions: Example

[0019] Combination Figures 1 to 6 An automatic detection device for waterproofing and moisture-proofing of cable wells includes an electrical box 1, which includes a water measurement signal transmitting unit 2. The surface of the water measurement signal transmitting unit 2 is provided with an intelligent control and data analysis unit 3, and the surface of the water measurement signal transmitting unit 2 is provided with a wireless signal receiving alarm unit 4. Heat dissipation mechanisms 5 are respectively provided on both sides of the electrical box 1. The water measurement signal transmitting unit 2 includes a DC power supply positive terminal 21, which is fixedly connected inside the electrical box 1. One end of the DC power supply positive terminal 21 is connected to a U-shaped water measurement metal plate 22, and the other end of the U-shaped water measurement metal plate 22 is connected to a water measurement control PCB circuit board 23. The other end of the water measurement control PCB circuit board 23 is connected to an intelligent data analysis 24, and the other end of the intelligent data analysis 24 is connected to an execution wireless signal transmitter 25. The U-shaped water measurement metal plate 22 adopts a symmetrical U-shaped structure with a metal plate spacing of 2mm and is vertically installed in the water-prone area at the bottom of the cable well. The intelligent control and data analysis unit 3 includes a power supply management module 31, which is located inside the electrical box 1. One end of the power supply management module 31 is connected to an embedded control chip 32, and the other end of the embedded control chip 32 is connected to a data storage logic control module 33. The other end of the data storage logic control module 33 is connected to a threshold optimization algorithm program 34.

[0020] Furthermore, the data storage logic control module 33 adopts a multi-level triggering mode, with preset warning thresholds and alarm thresholds, which trigger alarm commands of different levels respectively. Example

[0021] See Figures 1 to 6 Furthermore, based on Embodiment 1, the wireless signal receiving alarm unit 4 further includes a DC power supply negative terminal 41, which is located inside the electrical box 1. One end of the DC power supply negative terminal 41 is connected to a wireless signal receiver 42, one end of the wireless signal receiver 42 is connected to an audible and visual alarm 43, and one end of the audible and visual alarm 43 is connected to a remote communication module 44.

[0022] Furthermore, the built-in audible and visual alarm 43 of the electrical box 1 is activated, which can emit a buzzer alarm of more than 85dB and a red flashing warning. The heat dissipation mechanism 5 includes a heat dissipation mesh plate 51, which is set on the left and right sides of the electrical box 1. The heat dissipation mesh plate 51 is internally threaded with bolts 52, one end of which is threadedly connected to the inside of the electrical box 1.

[0023] The device operates based on the principle of conductive circuit triggering + wireless signal transmission + intelligent data analysis: when water accumulates, the U-shaped water-measuring metal strip forms a conductive circuit, triggering the intelligent control logic of the PCB circuit board, driving local alarm and wireless signal transmission, and the receiving end issues a remote alarm after receiving the signal; at the same time, it optimizes the detection parameters through historical data analysis to achieve accurate monitoring.

[0024] In actual operation, after the device is powered on, the intelligent control system enters a low-power standby mode, the U-shaped water-measuring metal plate is in a state of waiting to be detected, and the wireless signal transmitter intermittently sends heartbeat packets (once every 5 minutes) to provide feedback on the normal operating status of the device. Afterwards, the following operations are performed: I. Initial standby phase: Low power consumption monitoring, real-time status feedback After the device is connected to a DC 9V power supply, the intelligent control system (the STM32F103 main control chip integrated on the PCB circuit board) automatically completes the initialization self-test and then enters a low-power standby mode, maintaining the basic working state of "attendance-feedback" throughout the process to ensure both energy saving and reliability.

[0025] -System initialization: The main control chip performs a self-test on core components such as the U-shaped water measuring metal plate, filter circuit, wireless signal transmitter, and local alarm. If a component is faulty (such as a short circuit in the metal plate or an abnormal transmitter signal), the local alarm will emit three short beeps, and the wireless transmitter will send a fault code to prompt maintenance personnel to troubleshoot. If no abnormality is found during the self-test, the system will enter standby mode.

[0026] -Low power consumption control: In standby mode, the main control chip switches to sleep mode, retaining only the core detection circuit and the timed wake-up module to work. The power consumption of the whole machine is ≤0.5W, which effectively reduces power consumption and ensures long-term stable operation.

[0027] - Heartbeat feedback mechanism: The wireless signal transmitter (433MHz RF module) automatically wakes up every 5 minutes and sends a heartbeat packet containing "device ID, current time, battery / power status, and signal strength" to the wireless receiver. If the receiver does not receive a heartbeat packet for 3 consecutive times (i.e., 15 minutes), it automatically determines that the device is faulty, triggers an abnormal device alarm, and ensures that the device's status is traceable.

[0028] - Water testing component ready: The U-shaped water testing metal strip is in an open-circuit ready-to-test state. Its two ends are connected to the signal input interface of the PCB circuit board through shielded wires. The interface has a built-in 10KΩ pull-up resistor to ensure that the two ends of the metal strip remain at a high level when there is no water accumulation, thus avoiding false triggering.

[0029] II. Water Accumulation Detection Phase: Accurate Identification, Interference Filtering, and Tiered Early Warning Triggering When water accumulates in the cable well due to rainwater backflow, groundwater leakage, or other reasons, the liquid level gradually rises and contacts the U-shaped water-measuring metal plate, triggering the conductive circuit. The core task at this stage is to complete the precise linkage of "water accumulation signal acquisition - interference filtering - effective signal determination - early warning triggering".

[0030] - Conductive circuit formation: The U-shaped water-measuring metal strip is made of 304 stainless steel, and the distance between the two metal strips is strictly controlled at 2mm. It is vertically fixed to the water collection area at the bottom of the well. When the water level rises to the bottom of the contact metal strip (early warning detection section, i.e., 1 / 3 of the height of the bottom of the metal strip, corresponding to an actual height of 3.3cm), the water medium acts as a conductor, causing the two metal strips to form a closed circuit. At this time, the voltage level at both ends of the metal strip drops from high level (≥3.3V) to low level (≤0.3V), and a trigger signal is output to the PCB circuit board.

[0031] - Signal Filtering and Validity Determination: The PCB board has a built-in RC filter circuit (10KΩ resistor + 100nF capacitor) that can filter out weak current interference caused by humid air, fog, etc. (interference current is usually <10μA). The main control chip continuously samples the input signal. Only when the low-level signal is stable for more than 2 seconds and the sampling frequency is 10 times / second and all are valid low levels, is it determined to be a "real water accumulation signal". If the signal fluctuates frequently (e.g., the duration is <2 seconds), it is determined to be an interference signal and subsequent instructions are not triggered, effectively reducing the false alarm rate in humid environments.

[0032] - Warning Command Triggering and Execution: After confirming a valid water accumulation signal, the main control chip triggers a first-level warning command, simultaneously driving two actions: ① The local audible and visual alarm built into the power supply box starts intermittent operation mode, emitting an 85dB buzzer every 1 second (lasting 0.5 seconds), while the red LED flashes synchronously, alerting nearby personnel that initial water accumulation has occurred in the cable well; ② The wireless signal transmitter sends the signal of "warning code + device ID (distinguishing different cable well locations)" in the 433MHz frequency band, with a transmission power of 10dBm and a communication distance of ≥300 meters (unobstructed environment), ensuring stable reception at the receiving end.

[0033] III. Alarm Triggering Phase: Tiered escalation, information recording, and full signal push. If the accumulated water is not dealt with in time and the liquid level continues to rise, reaching the preset alarm threshold, the system will automatically upgrade the alarm level to enhance the warning effect, and at the same time complete the real-time recording of water accumulation data to provide a basis for subsequent data analysis.

[0034] - Alarm threshold triggering condition: When the water level rises to 1 / 2 the height of the U-shaped metal sheet (corresponding to an actual height of 5cm, i.e., the alarm detection section), the current intensity of the conductive circuit of the metal sheet increases significantly (from 1-5mA in the warning stage to 5-10mA). The main control chip identifies this change through the current sampling module, determines it as a "severe water accumulation state", and triggers the second-level alarm command.

[0035] - Enhanced execution of alarm commands: ① The local alarm switches to continuous working mode, the red LED light stays on, and the buzzer continuously emits a sound of over 85dB to enhance the warning penetration and remind maintenance personnel to take emergency measures; ② The wireless signal transmitter is adjusted to "high-frequency push mode", sending an alarm signal containing "emergency alarm code, device ID, water accumulation trigger time, and current signal strength" every 2 seconds. After pushing 3 times, the normal transmission frequency is restored to ensure that the receiving end accurately captures the emergency situation.

[0036] - Real-time data recording: The built-in Flash storage module (capacity 16MB) of the intelligent control unit automatically records key data of this water accumulation event, including: water accumulation warning trigger time (accurate to the second), alarm trigger time, current ambient humidity (collected by the SHT30 humidity sensor built into the PCB board), duration of water accumulation signal, current change curve, power supply voltage status, etc. The data retention period is 1 year and supports subsequent export and analysis.

[0037] IV. Alarm Receiving Phase: Signal Analysis, Linkage Response, and Precise Remote Notification After receiving the warning / alarm signal, the wireless signal receiver completes signal analysis and level identification. Through local alerts and remote push notifications, it ensures that maintenance personnel can quickly learn the location and level of the fault and carry out timely handling work.

[0038] - Signal Analysis and Level Differentiation: The wireless signal receiver has a built-in 433MHz receiving module and MCU decoding unit. After receiving the signal, it first analyzes the device ID and signal code. It matches the preset cable well location information (such as "Cable Well No. 3 on a certain road section") with the device ID, and distinguishes the three states of "early warning, emergency alarm, and device failure" with the signal code. Then, it transmits the "location-level-time" association information to the local sound and light alarm and remote communication module.

[0039] - Local linkage alarm: The remote sound and light alarm built into the receiver activates the corresponding mode according to the signal level: in the early warning state, it emits an intermittent yellow light and a buzzer; in the emergency alarm state, it emits a continuous red light and a high-frequency buzzer; and in the fault state, it emits a blue light and a discontinuous buzzer, which makes it easy for on-site personnel to quickly distinguish the type of event.

[0040] - Remote Precise Push (Optional Function): If the device is equipped with a GPRS remote communication module, the receiving end will push the parsed alarm information (including location, level, and time) to the maintenance personnel's mobile APP via the mobile network, and simultaneously upload it to the background monitoring platform. The platform automatically marks the cable well location and pops up an alarm window. In addition, it supports setting hierarchical push rules, pushing early warning information to the team leader, and pushing emergency alarm information to both the project leader and the maintenance team, ensuring clear handling levels.

[0041] V. Data Analysis and Optimization Phase: Data Review, Threshold Calibration, Adaptive Adjustment After maintenance personnel remove the accumulated water, the device automatically resets to standby mode. At the same time, the intelligent control system starts the data analysis process, optimizes the detection parameters by comparing historical data, and achieves a closed-loop improvement of "environmental adaptation-threshold precision" to reduce the probability of subsequent false alarms and missed alarms.

[0042] - Device reset conditions: When the water level drops below the bottom of the U-shaped metal plate, the conductive circuit is broken, the two ends of the metal plate return to a high level, and this state remains stable for more than 5 seconds. The main control chip determines that "the water has been removed", controls the local alarm to stop working, the wireless transmitter resumes the normal heartbeat packet transmission frequency, and the entire system is reset to low power standby mode.

[0043] -Historical Data Retrieval and Comparison: The main control chip automatically retrieves the recorded data of this water accumulation event and performs correlation analysis with locally stored historical data (water accumulation events, changes in ambient humidity, false alarm records, etc. within the past 3 months). Analysis dimensions include: ambient humidity background triggered by this water accumulation, signal stability duration, comparison with water accumulation conditions during the same period in history (such as the same date last month), and whether it belongs to a high-incidence period for water accumulation, etc.

[0044] - Threshold Adaptive Optimization: Parameter calibration is completed based on data analysis results: ① If the water accumulation signal disappears within 30 minutes after the alarm, and the ambient humidity is >90%, it is judged as a "false alarm due to humid air interference". The main control chip automatically increases the interference threshold of the filter circuit (extending the effective signal judgment time from 2 seconds to 3 seconds) to reduce false triggering in similar environments; ② If the current water accumulation is real and it belongs to a "normal water accumulation period" (such as the rainy season) compared with historical data, the current judgment threshold remains unchanged; ③ If real water accumulation alarms occur at the same location more than 3 times in a row, the warning trigger height is automatically reduced (from 1 / 3 height of the metal plate to 1 / 4 height) to advance the warning time; ④ The mode is adaptively adjusted according to seasonal changes. During the rainy season (preset to be June-September based on historical data), the "anti-interference mode" is activated, and during the dry season (October-May of the following year), the "high sensitivity mode" is activated, and the effective signal judgment time is adjusted to 3 seconds and 1 second respectively.

[0045] - Optimized parameters are permanently stored: Adjusted threshold parameters are automatically written to the non-volatile storage area of ​​the main control chip, eliminating the need for recalibration upon the next power-on and ensuring the long-term effectiveness of the optimization. Simultaneously, the optimization record is stored along with the current water accumulation data for easy reference in future parameter adjustments.

[0046] Through the orderly connection of the above five stages, the device achieves full-process automation from on-duty monitoring to alarm handling and parameter optimization. This not only ensures the timeliness and accuracy of water accumulation monitoring, but also continuously improves the device's adaptability through data closed-loop to meet the monitoring needs of cable wells in different environments.

Claims

1. An automatic detection device for waterproofing and moisture-proofing of cable wells, comprising an electrical box (1), characterized in that: The electrical box (1) includes a water measurement signal transmitting unit (2), an intelligent control and data analysis unit (3) is provided on the surface of the water measurement signal transmitting unit (2), a wireless signal receiving alarm unit (4) is provided on the surface of the water measurement signal transmitting unit (2), and heat dissipation mechanisms (5) are provided on both sides of the electrical box (1). The water measurement signal transmitting unit (2) includes a DC power supply positive terminal (21), which is fixedly connected to the inside of the electrical box (1). One end of the DC power supply positive terminal (21) is connected to a U-shaped water measurement metal plate (22), and one end of the U-shaped water measurement metal plate (22) is connected to a water measurement control PCB circuit board (23). One end of the water measurement control PCB circuit board (23) is connected to an intelligent data analysis (24), and one end of the intelligent data analysis (24) is connected to an execution wireless signal transmitter (25).

2. The automatic detection device for waterproofing and moisture-proofing of cable wells according to claim 1, characterized in that: The U-shaped water measuring metal strip (22) adopts a symmetrical U-shaped structure with a metal strip spacing of 2mm, and is vertically installed in the water-prone area at the bottom of the cable well.

3. The automatic detection device for waterproofing and moisture-proofing of cable wells according to claim 1, characterized in that: The intelligent control and data analysis unit (3) includes a power supply management module (31), which is located inside the electrical box (1). One end of the power supply management module (31) is connected to an embedded control chip (32), and one end of the embedded control chip (32) is connected to a data storage logic control module (33). One end of the data storage logic control module (33) is connected to a threshold optimization algorithm program (34).

4. The automatic detection device for waterproofing and moisture-proofing of cable wells according to claim 1, characterized in that: The data storage logic control module (33) adopts a multi-level trigger mode, presets early warning thresholds and alarm thresholds, and triggers alarm commands of different levels respectively.

5. The automatic detection device for waterproofing and moisture-proofing of cable wells according to claim 1, characterized in that: The wireless signal receiving alarm unit (4) includes a DC power supply negative terminal (41), which is located inside the electrical box (1). One end of the DC power supply negative terminal (41) is connected to a wireless signal receiver (42), one end of the wireless signal receiver (42) is connected to an audible and visual alarm (43), and one end of the audible and visual alarm (43) is connected to a remote communication module (44).

6. The automatic detection device for waterproofing and moisture-proofing of cable wells according to claim 1, characterized in that: When the built-in audible and visual alarm (43) of the electrical box (1) is activated, it can emit a buzzing alarm of more than 85dB and a red flashing warning.

7. The automatic detection device for waterproofing and moisture-proofing of cable wells according to claim 1, characterized in that: The heat dissipation mechanism (5) includes a heat dissipation mesh plate (51), which is disposed on the left and right sides of the electrical box (1). The heat dissipation mesh plate (51) is internally threaded with bolts (52), one end of which is threadedly connected to the electrical box (1).

Images