A power transmission line icing monitoring system

Abstract

This invention belongs to the field of cable icing monitoring, specifically relating to an icing monitoring system for power transmission lines. The system deploys monitoring sensors, a memory, and tower communication modules with a communication radius less than half the distance between adjacent towers on the towers. It also includes a drone that navigates along the line, equipped with a drone communication module that can communicate with the towers and a signal detector to detect the signal strength of the next tower and guide its navigation direction. The monitoring method involves sensors collecting and storing data, and the drone connecting to the tower communication modules one tower at a time to receive data, sequentially collecting icing information from each tower according to signal strength. By limiting the communication range and combining it with data collected by the drone, this system solves the problem of data transmission from icing in remote, signal-free areas, as well as the problem of drone flight path guidance. It also avoids signal interference, improving data collection stability and identification accuracy.

Description

Technical Field

[0001] This invention belongs to the field of cable icing monitoring, and specifically relates to a power transmission line icing monitoring system. Background Technology

[0002] In the safe and stable operation of power systems, the operation and maintenance monitoring of transmission lines is crucial, and icing is one of the key factors threatening line safety. Icing can lead to line overload, tower tilting, or even breakage, causing large-scale power outages and resulting in serious economic losses and social impacts. Therefore, real-time monitoring of icing conditions on transmission lines is of great practical significance.

[0003] Besides cities and surrounding areas with good signal coverage, many power transmission lines traverse mountainous regions and remote rural areas with weak or no signal, making icing monitoring equally urgent in these areas. Currently, various sensors are widely used for collecting icing parameters on power transmission lines, accurately capturing key information such as ice thickness and weight. However, in remote, signal-free areas, the icing-related data detected by sensors faces a technical bottleneck in effective data transmission. Due to the lack of stable communication network support, traditional data transmission methods relying on cellular and wireless networks are ineffective, resulting in monitoring data not being delivered to the back-end management system in a timely manner. Maintenance personnel cannot monitor the dynamics of line icing in real time, making it difficult to predict risks and take targeted de-icing measures.

[0004] Currently, there is no mature and efficient solution to the data transmission challenges in this special scenario. Existing technologies are either limited by signal coverage or have problems such as high deployment costs and insufficient stability, making it difficult to meet the actual application needs of icing monitoring of power transmission lines in remote areas. Therefore, it is urgent to explore new monitoring and data transmission technologies to solve this industry pain point. Summary of the Invention

[0005] The power transmission line icing monitoring system provided by this invention can effectively solve the problems existing in the background art.

[0006] This invention provides a transmission line icing monitoring system, wherein the transmission tower is equipped with:

[0007] Monitoring sensors are used to collect data on icing on power transmission lines;

[0008] The memory is used to store icing data collected by the monitoring sensors;

[0009] And the tower communication module, whose communication radius is less than half the distance between adjacent towers, wirelessly transmits the icing data stored in the memory to the outside;

[0010] It also includes drones that travel along power transmission lines, and are equipped with:

[0011] The drone communication module can wirelessly communicate with the tower communication module and receive icing data; the communication range of the drone communication module is no greater than the difference between the distance between adjacent towers and the communication diameter range of the tower communication module.

[0012] And a signal detector, used to detect the signal strength of the tower communication module on the next tower and guide the drone to fly in the direction of stronger signal strength.

[0013] As a further optimization of the present invention, the signal frequency of the tower communication module is irregularly distributed.

[0014] As a further optimization of the present invention, the signal frequency of the tower communication module is used as an identification identifier, and the flight path of the UAV is planned according to the set signal frequency order.

[0015] As a further optimization of the present invention, both the tower communication module and the drone communication module adopt a WiFi communication module or an RF serial port communication module.

[0016] As a further optimization of the invention, the tower is also equipped with a solar power generation device to power the monitoring sensors, memory, tower communication module and controller.

[0017] As a further optimization of the present invention, the tower communication module wirelessly transmits icing data for another set time period to the outside within a set time period.

[0018] As a further optimization of the present invention, the monitoring sensor includes:

[0019] Tension sensors collect data on changes in tension in power transmission lines;

[0020] Tilt sensors collect data on the sway of power transmission lines;

[0021] And cameras to collect data on the outline of ice layers on power transmission lines.

[0022] As a further optimization of the present invention, a monitoring method is also included, as follows:

[0023] The monitoring sensors collect icing data in real time and store the icing data in the memory;

[0024] When the drone passes the first pole, it establishes a connection with the pole's communication module via its drone communication module and receives icing data collected by the monitoring sensors on the first pole.

[0025] After the signal detector detects that the signal of the tower communication module on the second tower is gradually increasing, it sends instructions to the drone to guide the drone to fly in the direction of the increasing signal.

[0026] After the drone flies beyond the signal range of the tower communication module on the first tower, the drone's communication module loses communication with the tower communication module on the first tower. The drone continues to fly to the communication range of the tower communication module on the second tower and then connects with it.

[0027] The drone sequentially collects icing data from the monitoring sensors on the second, third, and finally last poles, following the steps described above.

[0028] The present invention provides a transmission line icing monitoring system, which guides a drone to fly by limiting the range of the communication module and combining the signal strength, and collects icing data collected by monitoring sensors along the way. The present invention solves the problem of icing data collection in remote areas by using an unmanned system.

[0029] This invention can also avoid signal interference from multiple towers and improve the stability of data acquisition; it uses irregular frequencies and frequency identifiers to plan flight routes, making identification accurate and less prone to errors.

[0030] The solar power supply used in this invention is energy-saving and environmentally friendly. Sending data in time intervals reduces power consumption and facilitates subsequent data processing, thus achieving efficient, reliable, and low-power continuous data collection along the icing line. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the principle structure of this embodiment;

[0032] Figure 2 This is a flowchart of this embodiment. Detailed Implementation

[0033] like Figure 1 , 2 As shown, this embodiment is applicable to icing monitoring of transmission lines in remote areas without signal coverage, where the tower spacing is typically large.

[0034] In this embodiment, monitoring sensors, memory, tower communication modules and solar power generation devices are uniformly configured on each transmission line tower. Each device is connected by lines to form a local working unit, without relying on external power supply and network support.

[0035] The monitoring sensors are used to continuously collect icing-related status information of the towers and surrounding lines. There is no fixed collection interval. The information is transmitted to the local storage in real time to ensure that the data is not lost and to provide a complete data source for subsequent transmission.

[0036] There are three types of monitoring sensors: a tension sensor, a tilt sensor, and a camera.

[0037] Tension sensors collect data on changes in tension in power transmission lines; tilt sensors collect data on the swaying of power transmission lines; and cameras collect data on the contours of ice layers on power transmission lines.

[0038] Simultaneously using three types of sensors to collect three types of data and then summarizing and analyzing them can significantly improve the accuracy of monitoring results.

[0039] The communication radius coverage of the tower communication module is limited to within half the distance between adjacent towers, ensuring that the communication signal of a single tower only covers a limited area around itself, avoiding cross-interference with the communication signals of adjacent towers, and ensuring the targeted nature of signal transmission.

[0040] The solar power generation device provides stable power support for monitoring sensors, memory, and tower communication modules, making full use of natural energy and adapting to scenarios in remote areas without grid coverage. The solar power generation device in this embodiment also has energy storage capabilities, ensuring normal operation of the equipment during cloudy days, nighttime, and other periods without sunlight, achieving the dual goals of energy conservation, environmental protection, and continuous operation.

[0041] In other embodiments, batteries or electrical wires can be used to power the monitoring sensors, memory, and tower communication modules, but this approach requires periodic charging of the batteries or incurring the construction costs of erecting power lines.

[0042] In this embodiment, the tower communication module transmits icing data stored in the previous set time period in a concentrated manner according to preset rules, rather than transmitting continuously in real time. For example, it transmits icing data collected in the previous two hours every two hours.

[0043] This design reduces the operating time of the tower communication module and lowers the overall power consumption, while also enabling the data to be collected in stages, facilitating later processing and analysis.

[0044] This embodiment utilizes a drone to collect icing data gathered by monitoring sensors.

[0045] The drone is equipped with a communication module and a signal detector, which work together to complete navigation and data reception tasks. The drone plans its flight path according to the power transmission line, without relying on external signals for positioning, using the tower's communication signals as the core navigation basis.

[0046] The UAV communication module and the pole communication module use the same type of communication technology. In this embodiment, an RF serial communication module is specifically used, but in other embodiments, a WiFi communication module can also be used.

[0047] When a drone enters the communication coverage area of ​​a pole's communication module, it automatically pairs with the pole's communication module, receives the icing data it sends, and temporarily stores it in the drone's local storage unit.

[0048] The communication diameter of the UAV communication module is no greater than the difference between the distance between adjacent towers and the maximum coverage area of ​​the tower's communication module. This means that as the UAV flies towards the next tower, there will be a gap where the UAV communication module is neither connected to the previous tower's communication module nor to the next tower's communication module. This gap allows the UAV communication module to disconnect from the previous tower's communication module, preparing for connection to the next tower's communication module and avoiding cross-interference caused by excessive signal overlap.

[0049] The detection radius of the signal detector should be greater than the signal radius of the tower communication module plus the distance of the blank section, ensuring that the UAV can detect the signal of the tower communication module of the next tower when it is within the communication range of the current tower. During the UAV's flight, the signal detector continuously senses the signal strength changes of the next tower and sends guidance signals to the UAV control system in real time, guiding the UAV to fly in the direction of gradually increasing signal strength, ensuring that the UAV flies accurately along the power transmission line and avoids deviating from the flight path.

[0050] The signal frequencies of all tower communication modules are randomly distributed to avoid signal confusion caused by uniform or regular frequency arrangements. Simultaneously, each tower's unique signal frequency serves as its identification, and the UAV's flight path is pre-planned according to a set signal frequency sorting rule. By identifying signals of different frequencies, the UAV confirms the identity of the currently connected tower and the next target tower, ensuring a consistent flight sequence and complete data reception. When encountering power line forks, it will not deviate from the preset flight path by following other branch lines. Therefore, this embodiment can complete icing data collection according to the preset flight path even in complex power line environments.

[0051] The monitoring method in this embodiment is as follows:

[0052] After the system is started, all equipment at the tower end operates automatically with the support of solar power. The monitoring sensors collect icing-related information in real time and store it in the memory. The tower communication module prepares to transmit data according to the preset time period.

[0053] Once the drone departs from the starting tower and enters the communication coverage area of ​​the first tower, the drone's communication module automatically establishes a connection with the tower's communication module and receives the icing data stored on that tower.

[0054] During or after data reception, the UAV's signal detector continuously monitors the signal of the communication module of the next pole. When the signal strength gradually increases, it sends navigation guidance to the UAV, and the UAV flies in the direction of signal enhancement.

[0055] As the drone flies, communication with the first tower automatically disconnects when it goes out of the tower's coverage area. The drone continues to fly in the indicated direction until it enters the coverage area of ​​the second tower, where it establishes a connection with the tower's communication module and receives the data stored therein.

[0056] The drone proceeds in a cyclical manner according to the above process, successively completing the task of receiving icing data from the second, third, and so on, until the last tower. It travels continuously along the power transmission line, achieving complete data collection along the line.

[0057] It should be understood that the descriptions of directions or positional relationships such as up, down, left, right, front, back, top, bottom, tail, horizontal and vertical in this application are all based on the accompanying drawings in the specification and are only used to express the technical solution more clearly and simplify the description, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A transmission line icing monitoring system, characterized in that, The tower is equipped with: Monitoring sensors are used to collect data on icing on power transmission lines; The memory is used to store icing data collected by the monitoring sensors; And the tower communication module, whose communication radius is less than half the distance between adjacent towers, wirelessly transmits the icing data stored in the memory to the outside; It also includes drones that travel along power transmission lines, and are equipped with: The drone communication module can wirelessly communicate with the tower communication module and receive icing data; the communication range of the drone communication module is no greater than the difference between the distance between adjacent towers and the communication diameter range of the tower communication module. And a signal detector, used to detect the signal strength of the tower communication module on the next tower and guide the drone to fly in the direction of stronger signal strength.

2. The transmission line icing monitoring system according to claim 1, characterized in that, The signal frequencies of the tower communication module are irregularly distributed.

3. The transmission line icing monitoring system according to claim 2, characterized in that, The signal frequency of the tower communication module is used as an identification identifier, and the flight path of the drone is planned according to the set signal frequency.

4. The transmission line icing monitoring system according to claim 1, characterized in that, Both the tower communication module and the drone communication module use WiFi communication modules or radio frequency serial communication modules.

5. The transmission line icing monitoring system according to claim 1, characterized in that, The tower is also equipped with a solar power generation device to power the monitoring sensors, memory, tower communication module and controller.

6. The transmission line icing monitoring system according to claim 1, characterized in that, The tower communication module wirelessly transmits icing data for another set time period to the outside during a set time period.

7. The transmission line icing monitoring system according to claim 1, characterized in that, The monitoring sensors include: Tension sensors collect data on changes in tension in power transmission lines; Tilt sensors collect data on the sway of power transmission lines; And cameras to collect data on the outline of ice layers on power transmission lines.

8. The transmission line icing monitoring system according to claim 1, characterized in that, It also includes monitoring methods, as follows: The monitoring sensors collect icing data in real time and store the icing data in the memory; When the drone passes the first pole, it establishes a connection with the pole's communication module via its drone communication module and receives icing data collected by the monitoring sensors on the first pole. After the signal detector detects that the signal of the tower communication module on the second tower is gradually increasing, it sends instructions to the drone to guide the drone to fly in the direction of the increasing signal. After the drone flies beyond the signal range of the tower communication module on the first tower, the drone's communication module loses communication with the tower communication module on the first tower. The drone continues to fly to the communication range of the tower communication module on the second tower and then connects with it. The drone sequentially collects icing data from the monitoring sensors on the second, third, and finally last poles, following the steps described above.

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