Device for preventing external damage of power transmission line based on laser radar

Abstract

The invention relates to the field of power transmission line monitoring, and particularly discloses a device for preventing external damage of a power transmission line based on a laser radar, and the device comprises the laser radar, a data processing unit, an early warning module, a communication unit, and a power module. The data processing unit receives three-dimensional space data sent back by the laser radar unit and analyzes the movement trend of an external damage source in real time, when the data processing unit judges that the external damage source is close to the safety distance of the power transmission line tower, the early warning module triggers an alarm signal, and the communication unit sends alarm information to a power transmission line monitoring center; according to the invention, timely discovery and early warning of external broken objects can be ensured, the system is not limited by weather and light conditions, the system is suitable for various complex environments, threat information can be rapidly fed back to a monitoring center through high-speed data transmission and dynamic analysis, early warning is realized, and the system is suitable for different scene requirements of power transmission lines.

Description

Technical Field

[0001] The invention relates to the field of power transmission line monitoring, and in particular to a device for preventing power transmission lines from being damaged externally based on a laser radar. Background Art

[0002] With the rapid economic development and the continuous advancement of urbanization, construction activities around transmission lines are becoming more and more frequent. When large machinery such as cranes, tower cranes, excavators, and drones are operating near transmission lines, it is very easy to cause line short circuits, tripping and other accidents, which pose a serious threat to the safe and stable operation of the power grid. Therefore, the early warning of power transmission line damage prevention has become particularly important. Traditional monitoring systems usually rely on traditional manual inspection methods or cameras, network sensors, etc., but there are problems of being easily affected by weather and environment, and the efficiency in identifying and handling external damage threats is low. It is impossible to issue early warnings in time, and it is impossible to detect and stop external damage behaviors in time. Therefore, it is of great practical significance to develop an efficient and reliable online early warning device for transmission line external damage prevention. To this end, this application proposes a device for preventing transmission line external damage based on laser radar to solve the above problems. Summary of the invention

[0003] In view of the existing problems, the present invention provides a device for preventing power transmission lines from being damaged externally based on laser radar, which can effectively solve the problems raised in the background technology.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A device for preventing power transmission line from external damage based on laser radar, comprising:

[0006] Laser radar, which is used to perform 360-degree scanning of the surrounding environment of the transmission line tower without blind spots, and obtain spatial data of surrounding obstacles and dynamic objects;

[0007] A data processing unit, the data processing unit is used to receive the three-dimensional space data sent back by the laser radar unit and analyze the movement trend of the external destruction source in real time;

[0008] An early warning module, which triggers an alarm signal when the data processing unit determines that the external damage source is close to the safe distance of the transmission line tower;

[0009] A communication unit, which sends alarm information to a transmission line monitoring center so that staff can intervene in time;

[0010] A power supply module is used to provide power supply to each module unit of the entire device.

[0011] As a further solution of the present invention: the laser radar is set to at least two, and the laser radar is installed on the side of the transmission line tower, and the laser radar completes a 360° scan around the transmission line tower.

[0012] As a further solution of the present invention: the data processing unit includes a dynamic analysis module, which performs dynamic analysis based on the collected data, determines the movement trend of the external threat source by comparing the previous and next frame data, and predicts the possible movement path.

[0013] As a further solution of the present invention: the data processing unit further includes an identification algorithm module, in which a database of external threat sources is provided. The identification algorithm module identifies and distinguishes surrounding external threat sources based on the database of external threat sources.

[0014] As a further solution of the present invention: it also includes a storage unit, which is used to store the data collected by the laser radar and the analysis results of the data processing unit to facilitate subsequent historical data analysis and event backtracking.

[0015] As a further solution of the present invention: the early warning module is provided with early warning thresholds of different distance radii centered on the transmission line tower.

[0016] As a further solution of the present invention: the early warning module is connected to a voice announcer and an audible and visual alarm.

[0017] As a further solution of the present invention: the early warning module sets three early warning thresholds, namely, the periphery, the middle and the inner circle. When the external threat source enters the periphery, the early warning module starts the normal warning and uses the warning light to warn; when the external threat source enters the middle, the early warning module starts the danger warning and uses voice broadcast to warn; when the external threat source enters the inner circle, the early warning module starts the emergency warning and continues to broadcast voice warnings. At the same time, the communication unit sends the early warning information to the transmission line monitoring center, and the transmission line monitoring center takes intervention measures.

[0018] As a further solution of the present invention: the laser radar is installed on the side of the transmission line tower using an adjustment structure. After the laser radar scans the external damage threat source, the laser radar continues to scan and monitor the external damage threat source.

[0019] As a further solution of the present invention: it also includes a video monitoring unit, which is hidden on the side of the laser radar and is in a normally closed state. After the early warning module sends out an alarm signal, the video monitoring unit is turned on and monitors the external threat source.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts laser radar to scan the external damage threat sources around the transmission line tower, which can provide accurate three-dimensional spatial positioning and distance measurement, ensure the timely discovery and early warning of external damage objects, is not limited by weather and light conditions, and is suitable for a variety of complex environments. Through high-speed data transmission and dynamic analysis, it can quickly feed back threat information to the monitoring center to achieve early warning. The overall device has a compact structure and can be installed in a modular manner, which is suitable for different scene requirements of transmission lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of system connection of a device for preventing power transmission line damage based on laser radar;

[0022] Figure 2 This is a schematic diagram of the distribution of laser radars in a device for preventing power transmission line damage based on laser radars.

[0023] In the figure: 1. LiDAR; 2. Data processing unit; 3. Early warning module; 4. Communication unit; 5. Power module; 6. Dynamic analysis module; 7. Recognition algorithm module; 8. Storage unit; 9. Voice announcer; 10. Sound and light alarm; 11. Periphery; 12. Middle; 13. Inner perimeter; 14. Video monitoring unit; 15. Transmission line tower. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Combination Figure 1 to Figure 2 The present embodiment is described. The present embodiment provides a device for preventing power transmission line from external damage based on laser radar, which includes a laser radar 1, a data processing unit 2, an early warning module 3, a communication unit 4, and a power module 5. The laser radar 1 is used to perform a 360° no-dead-angle scan of the surrounding environment of the transmission line tower 15 to obtain spatial data of surrounding obstacles and dynamic objects. The data processing unit 2 is used to receive the three-dimensional spatial data transmitted back by the laser radar 1 unit, and analyze the movement trend of the external damage source in real time; when the data processing unit 2 determines that the external damage source is close to the safe distance of the transmission line tower 15, the early warning module 3 triggers an alarm signal, and the communication unit 4 sends the alarm information to the transmission line monitoring center so that the staff can intervene in time. The power module 5 is used to provide power supply for each module unit of the entire device.

[0026] The power module 5 can be a solar power supply unit or a battery module, which is used to ensure the continuous operation of the device in a remote environment or an environment lacking power facilities. The power module 5 is provided with a power monitoring unit. When the power supply is insufficient, the power monitoring unit can send the insufficient power information to the transmission line monitoring center so that the staff can perform timely maintenance.

[0027] At least two laser radars 1 are set. In this example, three laser radars 1 are set, and the adjacent angles are 120°. The scanning range of each laser radar 1 is not less than 120°. The laser radar 1 is installed on the side of the transmission line tower 15. The laser radar 1 completes a 360° scan around the transmission line tower 15. The laser radar 1 unit can automatically adjust the scanning frequency and detection range according to the ambient light to improve energy efficiency and monitoring effects.

[0028] The data processing unit 2 includes a dynamic analysis module 6, which performs dynamic analysis based on the collected data, determines the movement trend of the external damage threat source by comparing the previous and next frame data, and predicts the possible movement path, so as to judge whether the external damage threat source will cause damage to the transmission line according to the movement path.

[0029] The data processing unit 2 also includes an identification algorithm module 7, which has a database of external damage threat sources. The identification algorithm module 7 identifies and distinguishes the surrounding external damage threat sources based on the database of external damage threat sources. The external damage threat sources include large machinery and equipment, trees, vehicles, personnel and other objects that may pose a threat to the transmission line, so as to judge the danger intensity of the external damage threat sources.

[0030] The data processing unit 2 is connected to a storage unit 8, and the storage unit 8 is used to store the data collected by the laser radar 1 and the analysis results of the data processing unit 2, so as to facilitate subsequent historical data analysis and event backtracking.

[0031] The early warning module 3 is provided with early warning thresholds of different distance radii centered on the power transmission line tower 15 , and the early warning module 3 is connected to a voice announcer 9 and an audible and visual alarm 10 .

[0032] like Figure 2As shown, the early warning module 3 sets three early warning thresholds, namely the periphery 11, the middle 12 and the inner 13. Three circular scanning monitoring lines are formed on the periphery 11 of the transmission line tower 15, and the distances from the transmission line tower 15 are 15m, 10m and 5m respectively. The area between the outermost scanning monitoring line and the middle scanning monitoring line is the periphery 11, the area between the innermost scanning monitoring line and the middle scanning monitoring line is the middle 12, and the inner part of the innermost scanning monitoring line is the inner 13. When the external damage threat source enters the periphery 11, the early warning module 3 starts the normal warning and uses the warning light to warn; when the external damage threat source enters the middle 12, the early warning module 3 starts the danger warning and uses the voice broadcast warning; when the external damage threat source enters the inner 13, the early warning module 3 starts the emergency warning and continues the voice broadcast warning. At the same time, the communication unit 4 sends the warning information to the transmission line monitoring center, and the transmission line monitoring center takes intervention measures.

[0033] The laser radar 1 is installed on the side of the transmission line tower 15 using an adjustment structure. The laser radar 1 can be rotated and adjusted vertically and horizontally relative to the transmission line tower 15. After the laser radar 1 scans the external destruction threat source, the laser radar 1 continues to scan and monitor the external destruction threat source.

[0034] A video monitoring unit 14 is also provided, and the video monitoring unit 14 is connected to the early warning module 3. The video monitoring unit 14 is hidden on the side of the laser radar 1 to avoid human damage. The video monitoring unit 14 is in a normally closed state to save electricity. After the early warning module 3 sends an alarm signal, the video monitoring unit 14 is turned on and monitors the external damage threat source, so that the transmission line monitoring center can clearly view the external damage threat source.

[0035] The working principle of the present invention is: using a laser radar 1 to scan the external damage threat sources around the transmission line tower 15, it can provide accurate three-dimensional spatial positioning and distance measurement, ensure timely discovery and early warning of external damage objects, is not limited by weather and light conditions, and is suitable for a variety of complex environments. Through high-speed data transmission and dynamic analysis, it can quickly feed back threat information to the monitoring center to achieve early warning. The overall device has a compact structure and can be installed in a modular manner, which is suitable for different scene requirements of transmission lines.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing power transmission line from breaking out based on laser radar, characterized in that: include: Laser radar, which is used to perform 360-degree scanning of the surrounding environment of the transmission line tower without blind spots, and obtain spatial data of surrounding obstacles and dynamic objects; A data processing unit, the data processing unit is used to receive the three-dimensional space data sent back by the laser radar unit and analyze the movement trend of the external destruction source in real time; An early warning module, which triggers an alarm signal when the data processing unit determines that the external damage source is close to the safe distance of the transmission line tower; A communication unit, which sends alarm information to a transmission line monitoring center so that staff can intervene in time; A power supply module is used to provide power supply to each module unit of the entire device.

2. According to claim 1, a laser radar-based power transmission line damage prevention device is characterized in that: The laser radar is configured to be at least two and is installed on the side of the transmission line tower. The laser radar completes a 360° scan around the transmission line tower.

3. According to claim 1, a laser radar-based device for preventing power transmission line damage is characterized in that: The data processing unit includes a dynamic analysis module, which performs dynamic analysis based on the collected data, determines the movement trend of the external destruction threat source by comparing the previous and next frame data, and predicts the possible movement path.

4. The device for preventing power transmission line from external damage based on laser radar according to claim 1 is characterized in that: The data processing unit further includes an identification algorithm module, in which a database of external threat sources is provided. The identification algorithm module identifies and distinguishes surrounding external threat sources based on the database of external threat sources.

5. The device for preventing power transmission line from external damage based on laser radar according to claim 1 is characterized in that: It also includes a storage unit, which is used to store data collected by the laser radar and analysis results of the data processing unit to facilitate subsequent historical data analysis and event backtracking.

6. The device for preventing power transmission line from external damage based on laser radar according to claim 1 is characterized in that: The early warning module is provided with early warning thresholds of different distance radii centered on the transmission line tower.

7. The device for preventing power transmission line from external damage based on laser radar according to claim 6 is characterized in that: The early warning module is connected with a voice announcer and an audible and visual alarm.

8. The device for preventing power transmission line from external damage based on laser radar according to claim 7 is characterized in that: The early warning module sets three early warning thresholds, namely, the periphery, the middle and the inner periphery. When the external threat source enters the periphery, the early warning module starts the normal warning and uses the warning light to warn; when the external threat source enters the middle, the early warning module starts the danger warning and uses voice broadcast to warn; when the external threat source enters the inner periphery, the early warning module starts the emergency warning and continues to broadcast voice warnings. At the same time, the communication unit sends the early warning information to the transmission line monitoring center, and the transmission line monitoring center takes intervention measures.

9. The device for preventing power transmission line from external damage based on laser radar according to claim 1 is characterized in that: The laser radar is installed on the side of the transmission line tower by using an adjustment structure. After the laser radar scans the external damage threat source, the laser radar continuously scans and monitors the external damage threat source.

10. The device for preventing power transmission line from external damage based on laser radar according to claim 1 is characterized in that: It also includes a video monitoring unit, which is hidden on the side of the laser radar and is in a normally closed state. After the early warning module sends out an alarm signal, the video monitoring unit is turned on and monitors the external threat source.

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