Line theft monitoring device

Abstract

The utility model discloses a line theftproof monitoring device, include: current detection unit and communication unit, current detection unit is used for detecting the current of cable, and current detection unit is fixedly connected with the clamp assembly, and the clamp assembly is used for clamping cable, and is fixedly connected with cable, current detection unit is electrically connected with communication unit, and communication unit is used for receiving the detection signal of current detection unit to and sends detection signal to the equipment of communication connection with communication unit.

Description

Technical Field

[0001] This utility model relates to the field of monitoring equipment technology, and in particular to a line anti-theft monitoring device. Background Technology

[0002] The consequences of theft or damage to overhead power lines are extremely serious. Such incidents inevitably lead to power outages, which have a wide-ranging impact. They can bring industrial production to a standstill, causing significant production losses, disrupting residents' daily lives, causing numerous inconveniences in the commercial sector, and potentially resulting in substantial property damage.

[0003] Currently, traditional power monitoring methods are insufficient for real-time and accurate detection of theft and vandalism of overhead lines. Common manual inspection methods are inefficient, unable to provide real-time monitoring of lines, and are limited by the subjective factors of inspectors and the inspection cycle, making it difficult to detect abnormalities in a timely manner. Utility Model Content

[0004] This utility model provides a line anti-theft monitoring device to solve at least one defect in the prior art.

[0005] This utility model embodiment provides a line anti-theft monitoring device, including:

[0006] Current detection unit and communication unit;

[0007] The current detection unit is used to detect the current of the cable. The current detection unit is fixedly connected to the clamp assembly, which is used to clamp the cable and is fixedly connected to the cable.

[0008] The current detection unit is electrically connected to the communication unit. The communication unit is used to receive the detection signal from the current detection unit and to send the detection signal to a device that is communicatively connected to the communication unit.

[0009] Optionally, the clamp assembly includes a clamp and a protective cover;

[0010] The clamp is fixedly connected to the cable, the cable detection unit is fixedly connected to the clamp, and the protective cover is used to cover the part of the clamp connected to the current detection unit;

[0011] The protective cover is used to prevent damage to the part where the clamp connects to the current detection unit.

[0012] Optionally, the current detection unit includes a magnetic ring, and the outer wall of the clamp is provided with a cylindrical protrusion adapted to the inner diameter of the magnetic ring, and the magnetic ring is fitted on the protrusion.

[0013] Optionally, the protective cover is provided with shock-absorbing pads inside.

[0014] Optionally, a protective tube is provided on the outside of the cable connecting the current detection unit and the communication unit to prevent the cable from being damaged.

[0015] Optionally, the protective tube is provided with sealing joints at both ends where it connects to the current detection unit and the communication unit.

[0016] Optionally, the protective tube is wrapped with a metal wire mesh.

[0017] Optionally, the communication unit is further configured with a protective case, and the communication unit is disposed inside the protective case;

[0018] The protective box is also equipped with a vibration sensor, which is connected to the communication unit.

[0019] The vibration sensor is used to detect whether the communication unit vibrates.

[0020] Optionally, the protective box is also equipped with a temperature sensor and a humidity sensor, which are connected to the communication unit.

[0021] The temperature sensor and humidity sensor are used to detect ambient temperature and ambient humidity, respectively.

[0022] Optionally, the communication unit is also equipped with a solar panel, which serves as an auxiliary power source for the communication unit.

[0023] Compared with existing technologies, the advantages of this utility model are as follows: This utility model proposes a line anti-theft monitoring device, which includes a current detection unit. The current detection unit can detect whether current is flowing through the cable, and thus determine whether cable theft or abnormal power usage has occurred. Using a current detection unit to detect cable current is not limited by current type, greatly improving the comprehensiveness and accuracy of cable current detection and providing a reliable basis for judging the cable's operating status. The fixing method of the current detection unit and the clamp assembly allows it to work stably in the complex environment of overhead lines. The clamp assembly's firm clamping of the cable prevents damage to the current detection unit due to external impacts, vibrations, etc. Using a current detection unit and a communication unit in conjunction for cable theft monitoring is applicable to overhead line cables of different specifications and voltage levels, whether high-voltage transmission lines or low-voltage distribution lines. Installation and use can be quickly achieved simply by adjusting the operating parameters of the current detection unit and setting the frequency band and protocol of the communication unit according to the actual situation. Attached Figure Description

[0024] Figure 1 This is a structural block diagram of the line anti-theft monitoring device in the embodiment. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] Figure 1 This is a structural block diagram of the line anti-theft monitoring device in the embodiment, for reference. Figure 1 The line anti-theft monitoring device includes:

[0027] Current detection unit 100 and communication unit 200.

[0028] The current detection unit 100 is used to detect the current of the cable. The current detection unit 100 is fixedly connected to the clamp assembly, which is used to clamp the cable and is fixedly connected to the cable.

[0029] The current detection unit 100 is electrically connected to the communication unit 200. The communication unit 200 is used to receive the detection signal from the current detection unit and to send the detection signal to the device that is communicatively connected to the communication unit.

[0030] For example, in this solution, the current detection unit 100 can be a magnetic ring or a current transformer. The current detection unit 100 is used to detect whether there is current flowing through the cable. When there is current flowing through the cable, the cable is considered to be in a safe state. If there is no current flowing through the cable, the cable may be stolen.

[0031] For example, in this solution, the current detection unit 100 is fixedly connected to the cable via a clamp, taking a magnetic ring as an example. The clamp is fastened to the cable by a screw and a nut.

[0032] A mounting bracket can be installed on the clamp, with one end set on the outside of the clamp and the other end designed as a slot or clamp structure that matches the magnetic ring.

[0033] During installation, the current detection unit 100 is connected to the clamp via a mounting bracket. The current detection unit 100 is embedded into the slot or fixed to the mounting bracket using a clamp, ensuring that the magnetic ring and the cable maintain a suitable relative position to effectively sense changes in the magnetic field around the cable.

[0034] For example, in this solution, the communication unit 200 can be an Internet of Things (IoT) communication module. The communication unit 200 integrates a signal conditioning circuit, which is used to amplify, filter, and perform analog-to-digital conversion on the measurement signal transmitted from the current detection unit 100, converting it into a digital signal suitable for transmission by the IoT module.

[0035] The communication unit 200 can be equipped with a small lithium battery as a backup power source. In the event of an external power failure, the communication unit 200 can continue to operate, ensuring uninterrupted transmission of detection signals.

[0036] For example, in this solution, the communication unit 200 can be configured to communicate with the power company's monitoring platform, smart meters and other devices, and the communication unit 200 can receive detection signals from the current detection unit 100 in real time.

[0037] The built-in microprocessor of the communication unit 200 analyzes and packages the detection signal, adds information such as device address, timestamp, and check code, and then sends the detection signal to the device that is connected to the communication unit 200 through the Internet of Things communication network.

[0038] For example, after receiving the data packet, the monitoring platform parses, stores, and analyzes the data to determine whether the cable current is normal and whether there is any theft or abnormal power consumption.

[0039] In this solution, a current detection unit is used to detect the cable current. This is not limited by the type of current, greatly improving the comprehensiveness and accuracy of cable current detection and providing a reliable basis for judging the cable's operating status. The fixing method of the current detection unit and the clamp assembly ensures stable operation in the complex environment of overhead lines. The clamp assembly's firm grip on the cable prevents damage to the current detection unit from external impacts, vibrations, and other factors.

[0040] The method of using a current detection unit and a communication unit to monitor cable theft is applicable to overhead line cables of different specifications and voltage levels. Whether it is a high-voltage transmission line or a low-voltage distribution line, it can be quickly installed and used simply by adjusting the working parameters of the current detection unit and setting the frequency band and protocol of the communication unit according to the actual situation.

[0041] exist Figure 1 Based on the scheme shown, in one possible implementation, the clamp assembly includes a clamp and a protective cover.

[0042] The clamp is fixedly connected to the cable, and the cable detection unit is fixedly connected to the clamp. The protective cover is used to cover the part where the clamp is connected to the current detection unit; the protective cover is used to prevent the part where the clamp is connected to the current detection unit from being damaged.

[0043] In this solution, the clamps can be made of high-strength and corrosion-resistant insulating materials, and the clamps can be designed as U-shaped clamps with an opening width slightly larger than the cable diameter.

[0044] During installation, align the opening of the U-shaped clamp with the cable and slip it over the cable from the side, positioning the cable within the recessed portion of the U-shaped clamp. The U-shaped clamp has threaded through holes at both ends; by passing the fastening bolts through these holes and tightening them, the two ends of the U-shaped clamp will gradually move closer together, thus tightly gripping the cable.

[0045] For example, in this solution, the protective cover can be made of insulating, wear-resistant and flexible engineering plastic. The protective cover effectively protects the connection between the clamp and the current detection unit, preventing damage caused by collision, friction and other factors.

[0046] For example, in this solution, the clamp is placed on the cable, ensuring that the clamp's fastening bolts are in an easily accessible position. The fastening bolts are then tightened to secure the clamp firmly to the cable, preventing it from slipping or loosening.

[0047] For example, in this solution, the mounting position and structure for fixing the cable detection unit are pre-designed on the clamp, such as by setting threaded holes or slots. The cable detection unit is then installed on the clamp according to the design requirements.

[0048] For threaded connections, use the matching bolts to securely fix the cable detection unit to the clamp; for slot connections, accurately insert the corresponding protrusion of the cable detection unit into the slot of the clamp, and use glue or other auxiliary fixing methods to enhance the stability of the connection. Ensure that the cable detection unit and the clamp are tightly connected.

[0049] For example, in this solution, after completing the connection between the clamp and the cable and the cable detection unit, the protective cover is aligned with the part where the clamp and the current detection unit are connected.

[0050] For example, in this solution, the protective cover can be designed as a separate unit or an integral unit. During installation, the protective cover is used to wrap around the connection parts to ensure that the protective cover completely covers the connection area.

[0051] If the protective cover is a split design, pay attention to sealing the joints during installation. Use sealant or sealing strips to prevent dust, moisture, etc., from entering and damaging the connections. For one-piece protective covers, ensure they fit tightly with the clamps and will not detach due to shaking or external force.

[0052] In this solution, a protective cover is used to enclose the part connecting the clamp to the current detection unit, effectively preventing it from being damaged by external physical forces such as collisions, friction, and scratches. In industrial environments, collisions between equipment or accidental contact during operation can damage the connection parts. The protective cover can greatly reduce this risk and extend the service life of the clamp assembly.

[0053] Based on any of the aforementioned solutions, in one possible implementation, the current detection unit includes a magnetic ring, and the outer wall of the clamp is provided with a cylindrical protrusion adapted to the inner diameter of the magnetic ring, and the magnetic ring is fitted onto the protrusion.

[0054] In this design, the cable passes through a magnetic ring. When current flows through the cable, an alternating magnetic field is generated around it. The magnetic ring, acting as a current detection unit, can concentrate this magnetic field and induce an electromotive force in the windings wound around the ring, thus reflecting the magnitude of the current in the cable.

[0055] In this design, the leads of the magnetic ring winding are shielded wires. One end of the shielding wire is connected to the winding, and the other end is connected to the communication unit. The shielding wire effectively reduces the impact of external electromagnetic interference on the induced signal, ensuring the stability and accuracy of signal transmission.

[0056] In this design, a cylindrical protrusion for securing the magnetic ring is provided on the outer wall of the clamp. The protrusion is made of the same material as the clamp to ensure a secure fit. The height and diameter of the protrusion are precisely designed according to the size of the magnetic ring, allowing the magnetic ring to fit tightly onto the protrusion.

[0057] When the magnetic ring is fitted into the cylindrical protrusion, the center of the magnetic ring and the center of the cable are roughly on the same axis to ensure that the magnetic ring can accurately sense the magnetic field around the cable.

[0058] In this design, the size of the cylindrical protrusion is precisely matched to the inner diameter of the magnetic ring, ensuring that the magnetic ring is accurately fitted and fixed in a specific position. This makes it easier to keep the center of the magnetic ring and the center of the cable on the same axis. This helps the magnetic ring accurately sense the magnetic field around the cable, improving the accuracy and stability of current detection and reducing detection errors caused by magnetic ring position deviations.

[0059] Based on any of the aforementioned solutions, in one possible implementation, a shock-absorbing pad is provided inside the protective cover.

[0060] In this solution, the shock-absorbing pads can be made of materials with good elasticity and cushioning properties, such as rubber, silicone, or polyurethane foam. The shape of the shock-absorbing pads is customized according to the internal space of the protective cover and the shape of the magnetic ring and clamp assembly. They can be designed as sheet-like or block-like structures that conform to the outline of the magnetic ring and clamp assembly.

[0061] The surface of a shock-absorbing pad can be designed with regular grooves or protrusions to increase its elastic deformation capacity and improve its cushioning effect. For example, rubber shock-absorbing pads can be made into sheets with a wavy surface. When subjected to vibration and impact, the wavy structure can undergo elastic deformation to absorb and disperse vibration energy.

[0062] In this design, the shock-absorbing pads are installed inside the protective cover, closely fitting the outer surfaces of the magnetic ring and clamp assembly. For example, after the magnetic ring is fitted onto the cylindrical protrusion on the outer wall of the clamp, the shock-absorbing pads are installed around the sides and bottom of the magnetic ring and clamp assembly. For the sides, the shock-absorbing pads are installed along the height of the sides of the magnetic ring and clamp assembly to ensure cushioning under horizontal vibration impacts; for the bottom, the shock-absorbing pads are laid at the contact points between the magnetic ring and clamp assembly and the bottom of the protective cover to cushion vertical vibrations.

[0063] For example, in this solution, the shock-absorbing pad can be glued to the protective cover or connected by snap-fit. When using snap-fit, matching snap-fit ​​structures are set inside the protective cover and on the shock-absorbing pad. During installation, the snap-fit ​​on the shock-absorbing pad is aligned with the snap-fit ​​slot on the protective cover and snapped in to complete the connection.

[0064] In this solution, the overhead lines are located in a complex environment, often affected by strong winds, severe weather, and even bird strikes, which can cause equipment vibration. Vibration damping pads can effectively buffer these external vibrations, preventing damage to the magnetic rings, clamp assemblies, and related connections due to vibration.

[0065] Based on any of the aforementioned solutions, in one possible implementation, a protective tube is provided on the outside of the cable connecting the current detection unit and the communication unit to prevent the cable from being damaged.

[0066] For example, in this solution, the protective pipe is made of a high-strength, corrosion-resistant and insulating material, such as stainless steel, high-density polyethylene (HDPE) or polyvinyl chloride (PVC).

[0067] Protective pipes can be designed to consist of multiple sections, which are connected by specific connection structures. For rigid protective pipes, such as stainless steel pipes, connection methods such as mounting, threaded connections, or clamp connections can be used.

[0068] For example, in this solution, the communication unit can be installed inside the cable pole, and correspondingly, a channel for threading the communication cable is reserved inside the cable pole. When installing the protective pipe, the protective pipe is inserted into the channel section by section, and clamps are used to fix it at both ends and the connection points to prevent it from shifting.

[0069] Based on any of the aforementioned solutions, in one possible implementation, a sealing joint is provided at each end of the protective tube where it connects to the current detection unit and the communication unit.

[0070] In this design, the sealing joint includes a connecting part and a sealing part. The connecting part has threads, slots, or quick-connect structures adapted to the protective pipe and equipment interface, facilitating connection to both ends. The sealing part employs a special design, typically containing a sealing gasket made of rubber or silicone. The gasket's shape fits tightly against the internal channel of the joint, effectively preventing the ingress of moisture, dust, and other impurities.

[0071] In this solution, when the protective pipe is made of a rigid material (such as a metal pipe), the connection of the sealing joint is achieved by tightening the threads.

[0072] For flexible protective pipes (such as corrugated pipes), the connection of the sealing joint may adopt a groove or quick-connect structure. The groove structure achieves connection and sealing by embedding the end of the protective pipe into the groove of the sealing joint and fixing it with a clamp or locking ring; the quick-connect structure is designed so that the protective pipe can be directly inserted into the sealing joint. After insertion, the internal elastic claws will automatically lock the protective pipe, and at the same time, the sealing gasket will make tight contact with the outer wall of the protective pipe to achieve the purpose of sealing.

[0073] Connection with the current sensing unit and communication unit: The current sensing unit and communication unit are equipped with dedicated interfaces, and the connection part of the sealed connector is designed to match them.

[0074] In this solution, the main function of the sealing joint is to provide a waterproof and dustproof seal. In overhead line environments, cables inside the protective conduit need to be protected from corrosion by rainwater, dust, sand, and other impurities. The sealing joint, through its internal sealing gasket, effectively prevents these impurities from entering the protective conduit, thereby protecting the cables and equipment.

[0075] Based on any of the aforementioned solutions, in one possible implementation, the protective tube is wrapped with a metal wire mesh.

[0076] For example, in this solution, the metal wire mesh is tightly wound in a spiral shape around the outside of the protective tube. During the winding process, it is secured with metal cable ties or stainless steel wire at regular intervals. When securing, the metal cable ties are passed through the mesh of the wire mesh, wrapped around the protective tube once, and then tightened to ensure that the wire mesh and the protective tube fit tightly together and there is no relative displacement.

[0077] At both ends of the protective pipe, the woven wire mesh requires special end treatment. The ends of the woven mesh are folded over and embedded into the sealing joints or fixing brackets at both ends of the protective pipe. The ends of the woven mesh are fixed by the tightening action of the sealing joints or fixing brackets to prevent them from unraveling.

[0078] In this solution, the braided metal mesh provides an additional mechanical protective layer for the protective conduit. This enhances the conduit's mechanical properties, significantly reduces the risk of damage, extends its service life, and ultimately ensures the safety of the internal cables.

[0079] Based on any of the aforementioned solutions, in one possible implementation, the communication unit is further equipped with a protective box, and the communication unit is located inside the protective box.

[0080] The protective box is also equipped with a vibration sensor, which is connected to the communication unit; the vibration sensor is used to detect whether the communication unit vibrates.

[0081] In this design, the protective case is equipped with an openable and closable door. The door is connected to the case body by hinges to ensure smooth opening and closing, and the protective case is equipped with a mechanical lock to prevent unauthorized personnel from opening it.

[0082] A rubber sealing strip is installed at the contact point between the cabinet and the door. When the door is closed, the sealing strip is pressed tightly, creating a good seal that effectively prevents dust, water, and insects from entering the cabinet. The top and sides of the cabinet typically have ventilation holes, inside which fine metal filters are installed.

[0083] The bottom of the protective enclosure is equipped with a mounting bracket or rail. The communication unit is secured to the bracket or rail using screws or clips to ensure a firm installation. Sufficient space is provided around the communication unit for wiring and the installation of other auxiliary equipment, such as power modules and signal conditioning modules.

[0084] In this solution, the vibration sensor can be a piezoelectric or accelerometer, and its output terminal is connected to the signal input terminal of the communication unit via a shielded wire. During the connection process, the power pin of the vibration sensor is connected to the power output terminal of the communication unit to provide the sensor with operating voltage.

[0085] In this solution, the main function of the vibration sensor is to monitor whether the communication unit vibrates in real time. Under normal circumstances, the communication unit is in a relatively stable state, and the signal output by the vibration sensor is at a low level. When the protective box is subjected to external impact, shaking, or someone attempts to illegally open the protective box, the communication unit will vibrate accordingly. The vibration sensor can quickly detect this vibration change and convert it into an electrical signal, which is then transmitted to the communication unit.

[0086] In this solution, the protective enclosure is designed to facilitate the installation and maintenance of the communication unit. Its rational internal layout and fixing structure make the installation process of the communication unit simple and quick, and staff can easily complete the installation and wiring of the equipment by following the markings and installation instructions inside the protective enclosure.

[0087] Based on any of the aforementioned solutions, in one possible implementation, the protective box is further equipped with a temperature sensor and a humidity sensor, which are connected to the communication unit; the temperature sensor and the humidity sensor are used to detect the ambient temperature and ambient humidity, respectively.

[0088] In this solution, the temperature sensor is connected to the communication unit. The temperature sensor is installed inside the protective box near the communication unit, or directly on the circuit board of the communication unit, to accurately measure the ambient temperature around the communication unit.

[0089] The temperature sensor is connected to the analog-to-digital converter (ADC) interface of the communication unit via a wire. The wire transmits the temperature-related electrical signal acquired by the temperature sensor to the communication unit, which converts the analog signal into a digital signal using its internal ADC module for subsequent processing and analysis. Simultaneously, the communication unit provides the necessary power to the temperature sensor to maintain its normal operation.

[0090] In this solution, the humidity sensor is installed inside a protective enclosure in a location that allows it to fully detect the humidity level within the enclosure, avoiding areas near ventilation openings or heat sources that might affect the accuracy of humidity measurements. The humidity sensor is connected to the ADC interface of the communication unit via a wire, transmitting the collected humidity-related electrical signals to the communication unit. The communication unit provides a stable power supply to the humidity sensor, enabling it to continuously monitor ambient humidity and convert the humidity data into digital signals for subsequent processing.

[0091] In this solution, temperature and humidity sensors monitor the operating environment of the communication unit from different perspectives. Working in conjunction with the current detection unit, they form a comprehensive monitoring system for the power system's operating status. By monitoring and controlling the temperature and humidity of the communication unit's operating environment, the temperature and humidity sensors ensure that the equipment operates in a suitable temperature and humidity environment, reducing the risk of equipment failure due to excessively high temperatures or humidity, and improving the reliability of the communication unit.

[0092] Based on any of the aforementioned schemes, in one possible implementation, the communication unit is further equipped with a solar panel, which serves as an auxiliary power source for the communication unit.

[0093] In this design, the solar panel is connected to the power input terminal of the communication unit via a cable. Inside the protective enclosure, the cable connects to the power management module of the communication unit. The power management module is responsible for processing the electrical energy output from the solar panel, such as voltage regulation, filtering, and charge / discharge control, to meet the power requirements for stable operation of the communication unit.

[0094] In this solution, solar panels are installed at the top of cable poles to obtain ample sunlight. During installation, specialized mounting brackets are used to secure the solar panels to the cable poles. The mounting brackets feature an adjustable angle design, allowing the tilt angle of the solar panels to be adjusted according to local geographical location and the angle of sunlight, thereby improving the efficiency of solar energy utilization.

[0095] In this solution, in the event of unstable power supply or mains power failure, the solar panel can serve as an auxiliary power source to continuously provide power to the communication unit, ensuring the normal operation of the communication unit.

[0096] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A line theft monitoring device, characterized by, include: Current detection unit and communication unit; The current detection unit is used to detect the current of the cable. The current detection unit is fixedly connected to the clamp assembly, which is used to clamp the cable and is fixedly connected to the cable. The current detection unit is electrically connected to the communication unit. The communication unit is used to receive the detection signal from the current detection unit and to send the detection signal to a device that is communicatively connected to the communication unit.

2. The line theft monitoring apparatus of claim 1, wherein The clamp assembly includes a clamp and a protective cover; The clamp is fixedly connected to the cable, the cable detection unit is fixedly connected to the clamp, and the protective cover is used to cover the part of the clamp connected to the current detection unit; The protective cover is used to prevent damage to the part where the clamp connects to the current detection unit.

3. The line theft monitoring apparatus of claim 2, wherein The current detection unit includes a magnetic ring, and the outer wall of the clamp is provided with a cylindrical protrusion that matches the inner diameter of the magnetic ring, and the magnetic ring is fitted on the protrusion.

4. The line theft monitoring apparatus of claim 2, wherein The protective cover is equipped with shock-absorbing pads inside.

5. The line theft monitoring apparatus of claim 1, wherein The cable connecting the current detection unit and the communication unit is provided with a protective tube to prevent the cable from being damaged.

6. The line theft monitoring apparatus of claim 5, wherein The protective tube is equipped with sealed joints at both ends where it connects to the current detection unit and the communication unit.

7. The line theft monitoring apparatus of claim 5, wherein The protective tube is wrapped with a metal wire mesh.

8. The line anti-theft monitoring device as described in claim 1, characterized in that, The communication unit is also equipped with a protective box, and the communication unit is located inside the protective box. The protective box is also equipped with a vibration sensor, which is connected to the communication unit. The vibration sensor is used to detect whether the communication unit vibrates.

9. The line theft monitoring apparatus of claim 8, wherein The protective box is also equipped with a temperature sensor and a humidity sensor, which are connected to the communication unit. The temperature sensor and humidity sensor are used to detect ambient temperature and ambient humidity, respectively.

10. The line theft monitoring apparatus of claim 1, wherein The communication unit is also equipped with a solar panel, which serves as an auxiliary power source for the communication unit.

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