A power grid line forest fire monitoring device

By designing a power grid fire monitoring device that can be mounted on a drone, the problems of insufficient high-temperature resistance and slow response speed in existing technologies have been solved. This enables real-time monitoring and accurate prediction of fire scene elements under high temperatures, thereby improving the safety and response efficiency of power grid lines.

CN122258979APending Publication Date: 2026-06-23STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
Filing Date
2026-03-27
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing power grid line wildfire monitoring devices lack high-temperature resistance, cannot provide continuous monitoring, and lack the ability to coordinate with aerial platforms, resulting in slow response times and an inability to accurately assess the impact of wildfires on power lines.

Method used

A power grid line wildfire monitoring device was designed, which includes a deployment mechanism and a stationary mechanism. The deployment mechanism can be suspended on a drone, and the stationary mechanism is equipped with a multi-parameter environmental monitoring module, a data processing module, and a communication module. It can be quickly deployed and placed on the power transmission line by drone, and has the ability to work continuously under high temperature. Combined with edge computing and cloud analysis, it realizes closed-loop monitoring from perception to prediction.

Benefits of technology

It enables real-time monitoring of fire scene elements in high-temperature environments, improves the accuracy of line tripping probability assessment, reduces operation and maintenance costs, and has greater advantages in remote areas, ensuring the continuity and accuracy of monitoring.

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Abstract

This invention relates to the field of power grid wildfire prevention technology, specifically to a power grid line wildfire monitoring device, comprising: a deployment mechanism capable of being suspended on a drone; and a stationary mechanism including a heat-insulated shell, the heat-insulated shell being detachably connected to the deployment mechanism, and the heat-insulated shell housing a multi-parameter environmental monitoring module, a data processing module, a communication module, and a power supply module, the power supply module being electrically connected to the multi-parameter environmental monitoring module, the data processing module, and the communication module respectively; wherein, when the deployment mechanism is connected to the drone, the stationary mechanism can be deployed onto the power transmission line via the deployment mechanism. This invention has the ability to operate continuously at high temperatures, enabling real-time monitoring of fire scene elements in wildfire environments, and providing data support for analyzing the tripping probability of power transmission lines under wildfire conditions.
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Description

Technical Field

[0001] This invention relates to the field of power grid wildfire prevention technology, specifically to a power grid line wildfire monitoring device. Background Technology

[0002] In recent years, frequent forest fires have seriously threatened the safe operation of power grid lines. The high temperatures, smoke, and conductive aerosols generated by wildfires can significantly reduce the insulation performance of power lines and even damage tower components, leading to flashover trips or even permanent failures. Currently, power grids primarily rely on monitoring and early warning systems to assess the spread of wildfires and determine whether they will spread beneath power lines, but they cannot accurately evaluate the impact of wildfires on line operation. The lack of monitoring and measurement methods results in a shortage of relevant measurement data. Furthermore, ordinary electronic equipment cannot function properly in high-temperature environments, making continuous monitoring difficult. Traditional devices also lack the ability to coordinate with aerial platforms, resulting in slow response times.

[0003] Therefore, there is an urgent need for a rapidly deployable, high-temperature resistant line wildfire monitoring device. Summary of the Invention

[0004] This invention provides a power grid line wildfire monitoring device with the ability to work continuously at high temperatures. It can monitor fire scene elements in real time under wildfire conditions, and provide data support for analyzing the tripping probability of transmission lines under wildfire conditions through the collected data.

[0005] This invention is achieved through the following technical solution:

[0006] This invention provides a power grid line wildfire monitoring device, comprising: a deployment mechanism capable of being suspended on a drone; and a dwelling mechanism including a heat-insulating shell, the heat-insulating shell being detachably connected to the deployment mechanism, and the heat-insulating shell housing a multi-parameter environmental monitoring module, a data processing module, a communication module, and a power supply module, the power supply module being electrically connected to the multi-parameter environmental monitoring module, the data processing module, and the communication module respectively; wherein, when the deployment mechanism is connected to the drone, the dwelling mechanism can be deployed onto the power transmission line via the deployment mechanism.

[0007] In an optional embodiment of this application, the delivery mechanism includes a delivery body, and the side wall of the delivery body is provided with a strap interface, which can be connected to the drone body via a strap.

[0008] In an optional embodiment of this application, a connecting column is provided at the lower end of the delivery body, and connecting grooves are provided on both opposite side walls of the connecting column. A disengagement driver is provided in the connecting groove. A pair of connecting buckles are provided on the top of the heat insulation shell, and the connecting buckles are hinged to the top of the heat insulation shell. In the standby state, the two connecting buckles are inclined upward. When the connecting column is inserted between the two connecting buckles, the connecting ends of the two connecting buckles are engaged in the corresponding connecting grooves, and the disengagement driver can push the connecting ends of the connecting buckles away from the corresponding connecting grooves.

[0009] In an optional embodiment of this application, the connecting buckle is made of a magnetic material, and the connecting column is adapted to a permanent magnet structure.

[0010] In an optional embodiment of this application, an elastic engagement sensor is installed in the connecting groove, and the elastic engagement sensor engages with the connecting end of the connecting buckle in the corresponding connecting groove and sends an engagement signal.

[0011] In an optional embodiment of this application, two balance frames are also provided at a distance from the lower end of the heat insulation shell. The two balance frames are arranged vertically and are spaced apart along the width direction of the heat insulation shell.

[0012] In an optional embodiment of this application, a fixed baffle is provided at the lower end of the balance frame, the bottom surface of the fixed baffle is covered with a reflective layer, and the gap between the two fixed baffles allows the transmission line components to pass through.

[0013] In an optional embodiment of this application, a monitor is fixed to the bottom surface of the fixed baffle, and the monitor is used to monitor the ambient temperature and air insulation performance.

[0014] In an optional embodiment of this application, a movable baffle is hinged to the inner side of the fixed baffle via an elastic hinge, and the movable baffle closes the gap between the two fixed baffles under the action of the elastic hinge.

[0015] In one optional embodiment of this application, a docking camera is provided at the lower end of the delivery body.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] 1. The power grid line wildfire monitoring device provided by the present invention includes a deployment mechanism and a stationary mechanism. The deployment mechanism can be suspended on a drone. The heat insulation shell of the stationary mechanism is detachably connected to the deployment mechanism. The deployment mechanism can be connected to the drone and deployed on the power transmission line. It can achieve deployment within minutes, overcome terrain limitations, and has greater advantages in remote or inconvenient areas. It can also be recycled and reused, reducing operation and maintenance costs.

[0018] 2. The power grid line wildfire monitoring device provided by the present invention has a multi-parameter environmental monitoring module, a data processing module and a communication module respectively connected to the power supply module inside the heat insulation shell of the stationary mechanism. It can monitor multi-dimensional key parameters, improve the accuracy of tripping mechanism identification, and realize a closed loop from "perception" to "prediction" when combined with edge computing and cloud analysis.

[0019] 3. The power grid line wildfire monitoring device provided by the present invention has a power supply module and a multi-parameter environmental monitoring module, a data processing module and a communication module connected to the power supply module, all housed in a heat-insulated shell. This ensures that the monitoring sensors can work continuously in the core area of ​​the wildfire, avoiding monitoring interruptions caused by thermal failure of traditional equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] In the attached diagram:

[0022] Figure 1 This is a three-dimensional structural diagram of the power grid wildfire monitoring device after the deployment mechanism and the stationary mechanism are separated, provided in an embodiment of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the power grid wildfire monitoring device after the deployment mechanism and the stationary mechanism are connected, as provided in an embodiment of the present invention.

[0024] Figure 3 This is a three-dimensional view of the folded movable baffle of the power grid line wildfire monitoring device provided in an embodiment of the present invention.

[0025] The attached figures include reference numerals and their corresponding component names:

[0026] 1-Insulated housing, 2-Dispensing body, 3-Strap interface, 4-Connecting column, 5-Connecting groove, 6-Disengagement driver, 7-Connecting buckle, 8-Elastic positioning sensor, 9-Balance frame, 10-Fixed baffle, 11-Monitor, 12-Modible baffle, 13-Dock camera. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] In the description of the embodiments of this application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0031] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Example

[0033] Combination Figures 1-3This embodiment provides a power grid line wildfire monitoring device, including: a deployment mechanism that can be suspended on a drone; and a dwelling mechanism, including a heat-insulating shell 1, which is detachably connected to the deployment mechanism. The heat-insulating shell 1 is provided with a multi-parameter environmental monitoring module, a data processing module, a communication module, and a power supply module. The power supply module is electrically connected to the multi-parameter environmental monitoring module, the data processing module, and the communication module, respectively. When the deployment mechanism is connected to the drone, the dwelling mechanism can be deployed on the power transmission line via the deployment mechanism.

[0034] Specifically, the deployment mechanism is the main body of the device used to place and retrieve devices that reside on the line (conductor or tower crossarm). When in use, it is fixed to the drone and connected to the deployment mechanism. Through power and signal connection with the drone, it has the ability to remotely control disconnection and connection.

[0035] In this embodiment, the delivery mechanism includes a delivery body 2. The side wall of the delivery body 2 is provided with a strap interface 3. The strap interface 3 can be connected to the drone body through a strap, so as to fix the delivery body 2 to the drone body through the strap, thereby ensuring the stability of the connection between the delivery mechanism and the drone.

[0036] Generally, the main body 2 is also equipped with a power and data connection port, the other end of which is connected to the drone for communication and power supply connection with the drone, so as to facilitate the acquisition of control signals and power.

[0037] The connection between the stationary mechanism and the delivery body 2 can be achieved through hook assembly connection, magnetic buckle assembly connection, elastic buckle assembly connection, active clamping mechanism connection, etc. The key is to ensure that the delivery mechanism and the connecting stationary mechanism can be connected and disconnected. In this embodiment, an openable connection structure is used, as detailed below:

[0038] The lower end of the dispensing body 2 is provided with a connecting column 4, and each of the two opposite side walls of the connecting column 4 is provided with a connecting groove 5. A disengagement driver 6 is provided in the connecting groove 5. A pair of connecting buckles 7 are provided on the top of the heat insulation shell 1. The connecting buckles 7 are hinged to the top of the heat insulation shell 1. In the standby state, the two connecting buckles 7 are inclined upward. When the connecting column 4 is inserted between the two connecting buckles 7, the connecting ends of the two connecting buckles 7 are engaged in the corresponding connecting groove 5, and the disengagement driver 6 can push the connecting ends of the connecting buckles 7 away from the corresponding connecting groove 5.

[0039] The connecting buckle 7 is made of a magnetic material, and the connecting column 4 is equipped with a permanent magnet structure so that the two connecting ports are attracted by the permanent magnet structure, thereby fastening the connecting end of the connecting buckle 7 into the corresponding connecting groove 5.

[0040] Furthermore, an elastic engagement sensor 8 is installed in the connecting groove 5. The elastic engagement sensor 8 engages with the connecting end of the connecting buckle 7 in the corresponding connecting groove 5 and sends an engagement signal.

[0041] In other words, the upper part of the dwelling mechanism is equipped with two connecting buckles 7 made of iron or other magnetically attractive materials, which can be naturally attracted and firmly connected to the concave magnetic connecting groove 5 of the dispensing mechanism. The concave magnetic buckle of the dispensing mechanism is equipped with a circular non-magnetic release device (disengagement driver 6) that can be electrically controlled to extend and retract. After being electrically extended, the connecting buckle 7 can be pushed out to disconnect the connection. Its extended and retracted state also indicates the disconnected and connected state of the connecting buckle 7.

[0042] Meanwhile, a small micro spring signal rod is provided at the bottom of the concave magnetic connection groove 5. In its natural state, it protrudes from the connection surface, indicating that it is not connected. After connection, the signal rod is pressed down, indicating that the connection is successful.

[0043] Furthermore, two balance frames 9 are also provided at the lower end of the heat insulation shell 1. The two balance frames 9 are arranged vertically and are spaced apart along the width direction of the heat insulation shell 1, so as to form a U-shaped groove through the two balance frames 9 to ensure the stability of the stationary mechanism. At the same time, the weight of the balance frame 9 itself can also make the device stand stably on the crossarm or guide of the tower.

[0044] The lower end of the balance frame 9 is provided with a fixed baffle 10. The bottom surface of the fixed baffle 10 is covered with a reflective layer, and the gap between the two fixed baffles 10 is large enough for the transmission line components to pass through. Generally, the fixed baffle 10 adopts an arc-shaped structure with a reflective bottom surface to reduce the heat below from being conducted to the heat insulation shell 1 through radiation and heat convection.

[0045] In addition, a monitor 11 is fixed to the bottom surface of the fixed baffle 10. The monitor 11 is used to monitor the ambient temperature and air insulation performance. That is, the monitor 11 includes a temperature sensor and an air insulation performance detection probe.

[0046] Based on this, a movable baffle 12 is hinged to the inner side of the fixed baffle 10 via an elastic hinge. The movable baffle 12 closes the gap between the two fixed baffles 10 under the action of the elastic hinge.

[0047] Continue to combine Figure 2 To facilitate the rapid and accurate docking of the deployment unit with the stationing unit at high altitude, a docking camera 13 is installed at the lower end of the deployment unit 2, which also facilitates the observation of the docking status.

[0048] It should be noted that the stationed equipment is delivered to the designated location on the pole or line via drone, and consists of a high-temperature insulation shell 1, an insulation strength monitoring module, a multi-parameter environmental monitoring module, a data processing module, a communication module, a power supply module, and a docking interface. Specifically:

[0049] The heat insulation housing 1 has a reflective material layer on the outside of the housing, which can reflect most of the radiant heat. The heat insulation layer is provided on the inside of the housing, which can ensure that the internal equipment can work continuously for more than three hours in an environment below 300℃.

[0050] The insulation strength monitoring module mainly consists of a high-voltage pulse unit and a calculation circuit, which is used to evaluate the insulation strength of the air near the line in real time.

[0051] The multi-parameter environmental monitoring module integrates an infrared non-contact temperature sensor, thermocouple, distance sensor, optical smoke scattering sensor, and infrared and visible light cameras to simultaneously collect parameters such as ambient temperature, ground clearance, and smoke particle concentration.

[0052] The data processing module and communication module have a built-in microprocessor that performs multi-source data fusion analysis to determine the tripping risk level and uploads the data to the monitoring platform via LoRa / 5G / NB-IoT wireless modules;

[0053] The power supply module includes a high-temperature resistant lithium battery to ensure continuous operation for more than 48 hours.

[0054] Each sensor contact is installed on the side of the ground near the ground to accurately collect parameters such as temperature, dust content, and air insulation strength. The high voltage pulse generated by the power frequency high voltage pulse generator is transmitted through the line to the air insulation strength measuring component under the heat insulation board.

[0055] Therefore, upon receiving a fire warning, the deployment mechanism is secured to the drone, and the stationary mechanism is connected to the deployment mechanism. The drone drives the deployment mechanism, and under the gravity of the stationary mechanism, the conductor or tower crossarm pushes the movable baffle 12 upwards, allowing the drone to quickly deploy the device to the designated line tower or conductor. After the drone deploys the stationary device, it sends a release signal to the deployment mechanism. The internal motor of the deployment mechanism moves the release lever outwards, which, through the release driver 6, pushes the connecting buckle 7 outwards, disconnecting the stationary mechanism from the deployment mechanism. This allows the stationary mechanism to detach from the drone and collect and detect data. The returned data (including key parameters such as insulation, temperature, smoke, wind speed, and wind direction) combined with existing three-dimensional data of the line channel can significantly improve the accuracy of line tripping probability assessment. The detection modules are mainly housed within the heat-insulating shell 1, ensuring continuous operation of the device in the core area of ​​the wildfire and preventing monitoring interruptions caused by thermal failure of traditional equipment. The movable baffle 12 is in a normally closed state under the drive of the elastic hinge, and at the same time, the weight of each baffle and the balance frame 9 can keep the dwelling mechanism balanced.

[0056] After the inspection mission is completed, the drone is retrieved. During retrieval, the drone carries the delivery mechanism to the top of the dwelling mechanism. With the assistance of the docking camera 13, the connecting column 4 is inserted into the gap between the two connecting ports. At this time, the connecting port is firmly connected to the connecting column 4 under the action of strong magnetism. In the lifting state, the lower edge of the connecting column 4 and the connecting buckle 7 are in close contact to bear the weight, thereby retrieving the dwelling mechanism.

[0057] Therefore, this embodiment can be rapidly deployed in high-risk wildfire areas, withstand high temperatures, and monitor and assess the ambient temperature, smoke concentration, and air insulation status of transmission lines in real time, thereby enhancing the power grid's ability to perceive and warn of wildfire disasters.

[0058] In summary, the power grid line wildfire monitoring device provided in this embodiment has the ability to work continuously under high temperatures, can monitor fire scene elements in real time under wildfire conditions, can be deployed to transmission line towers or lines to monitor changes in key parameters such as insulation strength, temperature and smoke, and can be deployed and retrieved by drones, so as to provide data support for analyzing the tripping probability of transmission lines under wildfires through the collected data.

[0059] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. Furthermore, any addition of automated control measures based on the concept and operational form of the present invention should also be within the scope of protection of this patent.

Claims

1. A power grid line wildfire monitoring device, characterized in that, include: The delivery system can be mounted on the drone; The dwelling mechanism includes a heat-insulating shell (1), which is detachably connected to the delivery mechanism. The heat-insulating shell (1) is provided with a multi-parameter environmental monitoring module, a data processing module, a communication module and a power module. The power module is electrically connected to the multi-parameter environmental monitoring module, the data processing module and the communication module respectively. In this configuration, when the deployment mechanism is connected to the drone, the stationary unit can be deployed onto the power transmission line via the deployment mechanism.

2. The power grid line wildfire monitoring device according to claim 1, characterized in that, The delivery mechanism includes a delivery body (2), and the side wall of the delivery body (2) is provided with a strap interface (3), which can be connected to the drone body through a strap.

3. The power grid line wildfire monitoring device according to claim 2, characterized in that, The lower end of the launching body (2) is provided with a connecting column (4), and each of the two opposite side walls of the connecting column (4) is provided with a connecting groove (5), and a disengagement driver (6) is provided in the connecting groove (5). The top of the heat insulation shell (1) is provided with a pair of connecting buckles (7), which are hinged to the top of the heat insulation shell (1); In the standby state, the two connecting buckles (7) are tilted upwards. When the connecting column (4) is inserted between the two connecting buckles (7), the connecting ends of the two connecting buckles (7) are engaged in the corresponding connecting groove (5), and the disengagement driver (6) can push the connecting ends of the connecting buckles (7) away from the corresponding connecting groove (5).

4. The power grid line wildfire monitoring device according to claim 3, characterized in that, The connecting buckle (7) is made of magnetic material, and the connecting column (4) is equipped with a permanent magnet structure.

5. The power grid line wildfire monitoring device according to claim 3, characterized in that, An elastic engagement sensor (8) is installed in the connecting groove (5). The elastic engagement sensor (8) engages with the connecting end of the connecting buckle (7) in the corresponding connecting groove (5) and sends an engagement signal.

6. The power grid line wildfire monitoring device according to claim 3, characterized in that, Two balance frames (9) are also provided at the lower end of the heat insulation shell (1). The two balance frames (9) are arranged vertically and are spaced apart along the width direction of the heat insulation shell (1).

7. The power grid line wildfire monitoring device according to claim 6, characterized in that, The lower end of the balance frame (9) is provided with a fixed baffle (10), the bottom surface of the fixed baffle (10) is covered with a reflective layer, and the gap between the two fixed baffles (10) allows the transmission line components to pass through.

8. The power grid line wildfire monitoring device according to claim 7, characterized in that, A monitor (11) is fixed to the bottom surface of the fixed baffle (10), and the monitor (11) is used to monitor the ambient temperature and air insulation performance.

9. The power grid line wildfire monitoring device according to claim 7, characterized in that, The inner side of the fixed baffle (10) is hinged to a movable baffle (12) by an elastic hinge. The movable baffle (12) closes the gap between the two fixed baffles (10) under the action of the elastic hinge.

10. The power grid line wildfire monitoring device according to any one of claims 2 to 9, characterized in that, The lower end of the delivery body (2) is equipped with a docking camera (13).