Cable trench environment monitoring device

Abstract

The invention discloses a cable trench environment monitoring device, and relates to the technical field of power supply monitoring, the cable trench environment monitoring device comprises a concrete trench, a sensor box body and a positioning shell, the concrete trench is internally provided with a plurality of groups of outer pipe sleeves, the outer pipe sleeves are internally provided with power supply cables, and an explosion-proof shell is arranged at the top end of the concrete trench. A box door is hinged to the outer side of the explosion-proof shell, an alarm box body is arranged on one side of the explosion-proof shell, a power supply box body is arranged on the other side of the explosion-proof shell, and an insulation monitoring module is arranged over the explosion-proof shell. In the device, a main control unit preferentially completes system initialization, performs self-inspection and parameter configuration on an environment parameter acquisition unit, a power supply cable state acquisition unit, a positioning unit, a communication module and an alarm unit, and ensures that each module enters a normal working state; the power supply module adopts a solar cell panel to cooperate with a storage battery and a power management chip to realize light energy conversion, electric energy storage and voltage stabilization output.

Description

Technical Field

[0001] This invention relates to the technical field of power supply monitoring, and more specifically to a cable trench environmental monitoring device. Background Technology

[0002] During the operation of a power system, the power supply cables in the power supply cable trench are the core equipment for ensuring the safe transmission of power supply cables and avoiding power accidents. Their operating status directly determines the stability and safety of the power system. Power supply cable trenches are mostly located underground or semi-underground, and are generally characterized by dampness, dust, water accumulation, and the potential accumulation of harmful gases such as methane and hydrogen sulfide. Moreover, power supply cables are laid in trenches for a long time, which can easily lead to problems such as insulation aging, surface wear, and abnormal temperature rise. If these problems are not monitored, warned, and dealt with in a timely manner, they can easily cause serious power safety accidents such as short circuits, leakage, and explosions.

[0003] In existing technologies, power cables are often laid directly in cable trenches without dedicated outer sheaths for protection. This makes them susceptible to wear and tear from debris and corrosion from moisture within the trench, leading to damage to the cable insulation and potential leakage faults. Furthermore, existing monitoring devices often rely on single-type sensors, failing to simultaneously monitor environmental factors such as temperature and humidity, water level, and harmful gas concentration within the cable trench. Fault response is also delayed, and positioning accuracy is low. Existing devices lack a dedicated integrated positioning and communication structure, resulting in positioning accuracy insufficient for rapid fault diagnosis. Additionally, the communication methods are limited, lacking a dual backup design of wired and wireless communication modules. When a fault occurs, fault information and location cannot be quickly and synchronously uploaded to the backend terminal. Relying solely on simple alarm devices without the linkage between fault lights and alarm boxes makes it difficult for on-site personnel to quickly detect abnormalities, leading to delayed fault handling and increasing the risk of fault escalation. Summary of the Invention

[0004] The purpose of this invention is to provide a cable trench environmental monitoring device to solve the above-mentioned defects caused by the prior art.

[0005] An environmental monitoring device for cable trenches includes a concrete trench, an explosion-proof enclosure, a sensor housing, and a positioning housing. Multiple sets of outer conduits are installed inside the concrete trench, and power cables are installed inside the outer conduits. The explosion-proof enclosure is located at the top of the concrete trench, and a door is hinged to the outside of the enclosure. An alarm housing is located on one side of the explosion-proof enclosure, and a power supply housing is located on the other side. An insulation monitoring module is located directly above the explosion-proof enclosure. The power supply module is bolted to the inside of the explosion-proof enclosure, and a power management module is installed inside the alarm housing. Positioning units are symmetrically arranged on the outside of the alarm housing.

[0006] Preferably, the positioning housing, wired communication module, wireless communication module, and Beidou dual-mode positioning module are provided. The positioning housing is located on one side of the explosion-proof housing. The wired communication module is connected through the outer side of the positioning housing. The wireless communication module is connected through the outer side of the positioning housing. Beidou dual-mode positioning modules are provided on both sides of the positioning housing. The Beidou dual-mode positioning modules are communicatively and electrically connected to the main control unit.

[0007] Preferably, a solar panel is provided on the top of the power supply box, and the solar panel is electrically connected to the battery inside the power supply box through an inverter.

[0008] Preferably, the sensor housing, water level sensor, humidity sensor, temperature sensor, and gas sensor constitute a parameter acquisition mechanism, and the sensor housing is equipped with the water level sensor, humidity sensor, temperature sensor, and gas sensor.

[0009] Preferably, a power supply cable is provided inside the outer sleeve, and the power supply cable is electrically connected to the main control unit installed inside the explosion-proof housing.

[0010] Preferably, the explosion-proof housing is bolted to the top of the concrete trench via a base frame seat at its bottom end.

[0011] Preferably, fault lights are symmetrically arranged on the top of the explosion-proof housing, and the fault lights are electrically connected to the main control unit.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The main control unit prioritizes system initialization, performing self-tests and parameter configurations on the environmental parameter acquisition unit, power cable status acquisition unit, positioning unit, communication module, and alarm unit to ensure that each module enters normal working condition. The power supply module uses solar panels in conjunction with batteries and power management chips to achieve light energy conversion, energy storage, and voltage regulation output. Through charging protection, overcharge and over-discharge protection, and short-circuit protection functions, it provides a continuous, stable, and safe power supply for the entire system, ensuring that the device can still operate stably for a long time in the absence of external mains power and in rainy weather.

[0013] 2. After filtering and calibrating the data from each channel, the main control unit compares it with the internally stored safety thresholds. When any parameter, such as temperature, humidity, gas concentration, water level, cable sheath temperature, or insulation resistance, exceeds the threshold range, the main control unit immediately determines it to be an abnormal or faulty state and simultaneously executes a multi-level response: On the one hand, it drives the alarm unit to activate, emitting a high-decibel audible and visual alarm, while the fault indicator light switches its display state according to preset rules to provide on-site warning; on the other hand, it obtains the precise location information of the monitoring terminal in real time through the positioning unit, and relies on the wired and wireless dual-backup communication modules to stably upload information such as fault type, real-time parameters, and equipment location to the remote monitoring platform. The communication module can automatically switch the transmission mode according to the network status to ensure that data is not lost or interrupted. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a side view of the main control unit structure in this invention; Figure 3 This is a schematic diagram of the sensor housing structure in this invention; Figure 4 This is a schematic diagram of the internal structure of the power supply box in this invention; Figure 5 This is a schematic diagram of the positioning shell itself in this invention.

[0015] in: 1. Concrete trench; 2. Outer conduit; 3. Power supply cable; 4. Explosion-proof enclosure; 5. Fault indicator; 6. Box door; 7. Sensor box; 8. Alarm box; 9. Power supply box; 10. Positioning enclosure; 11. Insulation monitoring module; 12. Main control unit; 13. Power supply module; 14. Base frame empty seat; 15. Power management module; 16. Positioning unit; 17. Water level sensor; 18. Humidity sensor; 19. Temperature sensor; 20. Gas sensor; 21. Solar panel; 22. Battery; 23. Wired communication module; 24. Wireless communication module; 25. Beidou dual-mode positioning module. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] like Figures 1 to 5As shown, a cable trench environmental monitoring device includes a concrete trench 1, an explosion-proof housing 4, a sensor box 7, and a positioning housing 10. Multiple sets of outer sleeves 2 are installed inside the concrete trench 1, and power supply cables 3 are installed inside the outer sleeves 2. The explosion-proof housing 4 is located at the top of the concrete trench 1, and a door 6 is hinged to the outside of the explosion-proof housing 4. An alarm box 8 is located on one side of the explosion-proof housing 4, and a power supply box 9 is located on the other side. An insulation monitoring module 11 is located directly above the explosion-proof housing 4. A power supply module 13 is bolted to the inside of the explosion-proof housing 4. A power management module 15 is installed inside the alarm box 8, and positioning units 16 are symmetrically arranged on the outside of the alarm box 8.

[0018] In this embodiment, the positioning housing 10, wired communication module 23, wireless communication module 24, and Beidou dual-mode positioning module 25 are provided. The positioning housing 10 is located on one side of the explosion-proof housing 4. The wired communication module 23 and the wireless communication module 24 are connected through the outer side of the positioning housing 10. The Beidou dual-mode positioning module 25 is provided on both sides of the positioning housing 10. The Beidou dual-mode positioning module 25 communicates and is electrically connected to the main control unit 12. A solar panel 21 is provided at the top of the power supply box 9. The solar panel 21 is electrically connected to the battery 22 inside the power supply box 9 through an inverter.

[0019] During operation, the device can achieve fully automated monitoring without the need for manual on-site monitoring or data collection. The parameter acquisition mechanism, consisting of sensor housing 7, water level sensor 17, humidity sensor 18, temperature sensor 19, and gas sensor 20, can automatically and in real-time collect parameters such as water level, temperature, humidity, and harmful gas concentration in the environment. The insulation monitoring module 11, located directly above the explosion-proof housing 4, automatically monitors the insulation performance of the power supply cable 3. All collected parameters are automatically transmitted to the main control unit 12 inside the explosion-proof housing 4. The main control unit 12 automatically completes data processing and threshold comparison without manual intervention, thus avoiding errors from manual data collection and significantly reducing the workload of operators.

[0020] In this embodiment, the sensor housing 7, water level sensor 17, humidity sensor 18, temperature sensor 19, and gas sensor 20 constitute a parameter acquisition mechanism. The sensor housing 7 is equipped with the water level sensor 17, humidity sensor 18, temperature sensor 19, and gas sensor 20. The outer sleeve 2 is equipped with a power supply cable 3, which is electrically connected to the main control unit 12 installed inside the explosion-proof housing 4. The explosion-proof housing 4 is bolted to the top of the concrete trench 1 via a base frame seat 14 installed at its bottom. Fault lights 5 are symmetrically installed at the top of the explosion-proof housing 4, and the fault lights 5 are electrically connected to the main control unit 12.

[0021] In practical applications, this cable trench environmental monitoring device includes the following tasks: This device uses the main control unit 12 as the core control center, and relies on the coordinated work of various functional modules to achieve all-weather intelligent monitoring, abnormal alarm and fault location of the operating status of power supply cable 3 and its surrounding environment, ensuring the safe operation of power supply cable 3 throughout the process. The working principle is as follows, based on the specific functions of each component: First, the power supply module 13 provides continuous and stable power support for the entire device: the solar panel 21 at the top of the power supply box 9 converts solar energy into electrical energy, which is then processed by the inverter and transmitted to the battery 22 inside the power supply box 9 for storage; the electrical energy output by the battery 22 supplies power to the power supply module 13 bolted inside the explosion-proof shell 4, which powers the main control unit 12, insulation monitoring module 11 and other core components, and transmits it through the line to the power management module 15 inside the alarm box 8, which powers the positioning unit 16 and other components, ensuring that the entire device can still operate normally in scenarios without solar energy supply, such as rainy days and nights.

[0022] In terms of device installation and fixation, the explosion-proof enclosure 4 is bolted to the top of the concrete trench 1 through the base frame seat 14 set at its bottom end to achieve stable installation; multiple sets of outer sleeves 2 are set inside the concrete trench 1 to protect the power supply cable 3 inside, so as to prevent the power supply cable 3 from being worn and corroded by the external environment. At the same time, the power supply cable 3 is electrically connected to the main control unit 12 inside the explosion-proof enclosure 4, which not only realizes power transmission, but also ensures the real-time monitoring of the operating status of the power supply cable 3 by the main control unit 12.

[0023] In the data acquisition stage, a parameter acquisition mechanism consisting of sensor housing 7, water level sensor 17, humidity sensor 18, temperature sensor 19, and gas sensor 20 is responsible for real-time acquisition of the on-site environment and related operating parameters. Sensor housing 7 provides protection and fixation for the four types of sensors inside. Water level sensor 17 monitors the surrounding water level. Humidity sensor 18 and temperature sensor 19 collect ambient temperature and humidity, respectively. Gas sensor 20 detects the concentration of harmful gases in the surrounding environment. At the same time, the insulation monitoring module 11, located directly above the explosion-proof housing 4, monitors the insulation performance of the power supply cable 3 in real time. All acquired parameter signals are synchronously transmitted to the main control unit 12 for processing.

[0024] In the data processing and anomaly response phase, the main control unit 12 analyzes and compares the received environmental parameters and insulation parameters of the power supply cable 3 with the internally stored safety thresholds. If all parameters are within the safe range, the device maintains normal operation, and the fault lights 5 symmetrically arranged on the top of the explosion-proof housing 4 maintain normal indication without abnormal flashing. If any parameter is detected to exceed the safety threshold, such as excessively high water level, abnormal temperature and humidity, excessive gas, or damaged insulation of the power supply cable 3, the main control unit 12 immediately triggers the anomaly response mechanism. On the one hand, it controls the fault lights 5 to flash to alert on-site personnel. On the other hand, it sends an alarm signal to the alarm box 8, enabling on-site audible and visual alarms through the alarm box 8, which, in conjunction with the power supply module 15, provides power and triggers the relevant control logic for tripping the circuit breaker to prevent the fault from escalating.

[0025] In the fault location and data transmission stage, the positioning housing 10 is fixed to one side of the explosion-proof housing 4. The wired communication module 23 and the wireless communication module 24 connected through the outer side of the positioning housing 10 realize dual backup data transmission. The Beidou dual-mode positioning modules 25 set on both sides of the positioning housing 10 communicate and are electrically connected to the main control unit 12 to obtain the accurate location information of the device in real time. When the device triggers an abnormal alarm, the main control unit 12 automatically switches and uploads the fault type, real-time collected abnormal parameters, and accurate location information of the device to the background monitoring terminal through the wired communication module 23 or the wireless communication module 24 according to the on-site network status. At the same time, the positioning units 16 symmetrically set on the outer side of the alarm box 8 assist in positioning, which facilitates the maintenance personnel to quickly locate the fault point and arrive at the scene in time for handling.

[0026] In addition, the hinged door 6 on the outside of the explosion-proof housing 4 facilitates the maintenance and debugging of internal components such as the main control unit 12 and the power supply module 13 by the staff, further improving the ease of operation and maintenance of the device.

[0027] Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A cable trench environmental monitoring device, characterized in that: The device includes a concrete trench (1), an explosion-proof enclosure (4), a sensor housing (7), and a positioning housing (10). The concrete trench (1) is equipped with multiple sets of outer sleeves (2). The outer sleeves (2) are equipped with power supply cables (3). The explosion-proof enclosure (4) is located at the top of the concrete trench (1). The outer side of the explosion-proof enclosure (4) is hinged to a door (6). An alarm housing (8) is located on one side of the explosion-proof enclosure (4). A power supply housing (9) is located on the other side of the explosion-proof enclosure (4). An insulation monitoring module (11) is located directly above the explosion-proof enclosure (4). A power supply module (13) is bolted to the inside of the explosion-proof enclosure (4). A power management module (15) is located inside the alarm housing (8). Positioning units (16) are symmetrically arranged on the outside of the alarm housing (8).

2. The cable trench environmental monitoring device according to claim 1, characterized in that: The positioning shell (10), wired communication module (23), wireless communication module (24) and Beidou dual-mode positioning module (25) are described. The positioning shell (10) is located on one side of the explosion-proof shell (4). The wired communication module (23) is connected through the outer side of the positioning shell (10). The wireless communication module (24) is connected through the outer side of the positioning shell (10). The Beidou dual-mode positioning module (25) is provided on both sides of the positioning shell (10). The Beidou dual-mode positioning module (25) is communicated and electrically connected to the main control unit (12).

3. The cable trench environmental monitoring device according to claim 2, characterized in that: The top of the power supply box (9) is provided with a solar panel (21), which is electrically connected to the battery (22) inside the power supply box (9) through an inverter.

4. The cable trench environmental monitoring device according to claim 3, characterized in that: The sensor housing (7), water level sensor (17), humidity sensor (18), temperature sensor (19), and gas sensor (20) constitute a parameter acquisition mechanism. The sensor housing (7) is equipped with water level sensor (17), humidity sensor (18), temperature sensor (19), and gas sensor (20).

5. The cable trench environmental monitoring device according to claim 4, characterized in that: The outer sleeve (2) is provided with a power supply cable (3), which is electrically connected to the main control unit (12) provided in the explosion-proof shell (4).

6. The cable trench environmental monitoring device according to claim 5, characterized in that: The explosion-proof housing (4) is bolted to the top of the concrete trench (1) via a base frame seat (14) provided at its bottom end.

7. The cable trench environmental monitoring device according to claim 6, characterized in that: The explosion-proof housing (4) is symmetrically provided with fault lights (5) at the top, and the fault lights (5) are electrically connected to the main control unit (12).

8. The cable trench environmental monitoring device according to claim 7, characterized in that: Its operation method is as follows: The parameter acquisition mechanism, consisting of sensor housing (7), water level sensor (17), humidity sensor (18), temperature sensor (19), and gas sensor (20), is responsible for real-time acquisition of the on-site environment and related operating parameters: the sensor housing (7) provides protection and fixation for the four types of sensors inside; the water level sensor (17) monitors the surrounding water level; the humidity sensor (18) and temperature sensor (19) collect the ambient temperature and humidity respectively; and the gas sensor (20) detects the concentration of harmful gases in the surrounding area. At the same time, the insulation monitoring module (11) set directly above the explosion-proof shell (4) monitors the insulation performance of the power supply cable (3) in real time. All the collected parameter signals are synchronously transmitted to the main control unit (12) for processing. In the data processing and abnormal response stage, the main control unit (12) performs the following functions: The control unit (12) analyzes and compares the received environmental parameters and the insulation parameters of the power supply cable (3), and judges them against the internally stored safety thresholds. If all parameters are within the safe range, the device maintains normal operation, and the fault lights (5) symmetrically set on the top of the explosion-proof shell (4) maintain normal indication without abnormal flashing. If any parameter is detected to exceed the safety threshold, such as excessive water level, abnormal temperature and humidity, excessive gas, or damaged insulation of the power supply cable (3), the main control unit (12) immediately triggers the abnormal response mechanism. On the one hand, it controls the fault lights (5) to flash and alarm to remind the on-site personnel to pay attention. On the other hand, it sends an alarm signal to the alarm box (8) to realize the on-site sound and light alarm through the alarm box (8) in conjunction with the internal power management module (15) to supply power, and at the same time triggers the relevant control logic of the circuit breaker to avoid the expansion of the fault.

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