Early warning device for preventing external damage of power transmission line

Abstract

The utility model provides an external damage prevention early warning device for a power transmission line. The external damage prevention early warning device comprises a first fixing support and a second fixing support which are fixedly connected with a power transmission line framework; the monitoring host is assembled on the first fixing support and is used for generating an alarm signal when an operation vehicle invades into a preset space range around a wire. The alarm integration module is assembled on the second fixing support, the alarm integration module is in signal connection with the monitoring host to obtain an alarm signal, the alarm integration module comprises a local alarm unit and a transmitting unit, the local alarm unit is used for locally giving out an audible and visual alarm according to the alarm signal, and the transmitting unit is used for converting the alarm signal into a radio signal; and the signal receiving device is used for receiving the radio signal and broadcasting external damage early warning information to an operator according to the radio signal. The device can reliably inform an operator of early warning information, and can ensure the safety, reliability and easy adjustability of the external damage prevention early warning device for the power transmission line during assembly at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission line protection, in particular to a power transmission line external damage prevention early warning device. Background Art

[0002] Transmission lines are distributed over vast areas and travel long distances. During power grid projects, high-altitude vehicles such as construction cranes, overhead pump trucks, and drilling rigs operating or passing beneath high-voltage transmission lines pose a risk of damaging them, endangering both the safety of workers and the safe operation of the power grid. Furthermore, damage to high-voltage transmission lines from other external forces is a common occurrence, seriously impacting the safe operation of the power grid.

[0003] Methods for preventing damage to high-voltage transmission lines from external forces primarily include video analysis, laser detection, and radar monitoring, and these monitoring methods are becoming increasingly mature. Video analysis uses a 24 / 7 visual monitoring system for real-time analysis, providing online warnings of construction conditions near transmission lines and capturing real-time images of large construction machinery operating at excessive heights. The visual monitoring system's on-site equipment primarily consists of a system host and cameras. Algorithms compare captured images to determine if construction equipment is near transmission lines, and then notify on-site personnel via phone or text message. Laser detection uses single-point (or multiple-point) infrared or laser beams for blockage alarm detection. A single laser transmitter is installed below the conductor on one tower, and a laser receiver is installed on the opposite side, creating a laser path. If an intruder blocks the laser beam, an on-site alarm is generated. Radar monitoring uses millimeter-wave radar for on-site monitoring. Installed on one tower, the radar scans and identifies objects within the monitoring area, identifying any intrusions and then generating an on-site alarm.

[0004] However, each of these preventive methods presents challenges. Video analysis uses captured images and algorithmic comparison to determine whether construction equipment is approaching power lines. On-site personnel are then notified by phone or text message. This notification and prevention method carries the risk of a time lag, preventing back-end monitoring personnel from notifying the site in a timely manner and effectively preventing on-site damage. Laser detection and radar monitoring are susceptible to the noisy construction site environment and the condition of construction machinery windows, making it difficult for drivers to clearly receive warnings and promptly cease dangerous driving behavior.

[0005] In other words, existing power transmission line damage warning systems struggle to ensure that operators can promptly and reliably stop driving based on detection results. Furthermore, most existing power transmission line damage warning systems are still at the theoretical research stage of detection methods. While they can theoretically detect risks (such as the high-voltage line laser damage warning system disclosed in Chinese patent application number 201910631098.3), they lack reliable assembly stability, are difficult to adjust, and have poor applicability. Utility Model Content

[0006] The utility model aims to solve at least one of the above-mentioned technical problems existing in the prior art.

[0007] To this end, the utility model provides a transmission line anti-external damage early warning device.

[0008] The utility model provides a transmission line anti-external damage early warning device, comprising:

[0009] A first fixing bracket, fixedly connected to the transmission line structure;

[0010] a second fixing bracket, fixedly connected to the transmission line structure;

[0011] A monitoring host, mounted on the first fixing bracket, with the monitoring direction of the monitoring host facing the lowest point of the wire sag, for generating an alarm signal when an operating vehicle intrudes into a preset space around the wire;

[0012] an alarm integration module, mounted on the second fixing bracket, the alarm integration module being connected to the monitoring host signal to obtain an alarm signal, the alarm integration module comprising a local alarm unit and a transmitting unit, the local alarm unit being used to emit an audible and visual alarm locally according to the alarm signal, and the transmitting unit being used to convert the alarm signal into a radio signal;

[0013] The signal receiving device is arranged on the working vehicle, and is used for receiving the radio signal and broadcasting the external damage warning information to the working personnel according to the radio signal.

[0014] The power transmission line anti-external damage warning device according to the above technical solution of the utility model may also have the following additional technical features:

[0015] The above technical solution also includes:

[0016] Auxiliary adjustment bracket, the monitoring host is fixedly connected to the first fixed bracket through the auxiliary adjustment bracket; wherein, the monitoring host is fixedly connected to the auxiliary adjustment bracket, and the auxiliary adjustment bracket is used to provide the monitoring host with the freedom of pitch adjustment in the vertical direction, thereby adjusting the monitoring direction of the monitoring host.

[0017] In the above technical solution, the auxiliary adjustment bracket includes:

[0018] a first supporting frame, fixedly connected to the first fixing frame;

[0019] A second support frame is rotatably connected to the first support frame, the second support frame has at least one support surface, and the monitoring host is fixedly connected to the support surface;

[0020] The locking structure is provided between the first support frame and the second support frame, and is used to lock the relative rotation angle of the first support frame and the second support frame.

[0021] The above technical solution also includes:

[0022] The power module has a shell, the alarm integration module is fixedly connected to the shell of the power module, and the shell of the power module is fixedly connected to the second fixed bracket; the power module is electrically connected to the local alarm unit, the transmitting unit and the monitoring host respectively to provide electrical energy.

[0023] In the above technical solution, the power module includes:

[0024] A battery unit is electrically connected to the local alarm unit, the transmitting unit and the monitoring host respectively;

[0025] The photovoltaic power generation unit is connected to the battery unit.

[0026] In the above technical solution, the second fixing bracket includes:

[0027] A support arm, one end of which is fixedly connected to the housing of the power module;

[0028] A right-angle bracket is fixedly connected to the other end of the support arm. The right-angle bracket includes a first connecting surface and a second connecting surface that are perpendicular to each other. The power transmission line structure is fixedly connected to the first connecting surface and the second connecting surface respectively.

[0029] In the above technical solution, the local alarm unit includes:

[0030] Warning light, used to issue a light warning locally according to the warning signal;

[0031] The sounder is used to issue an alarm broadcast locally based on the alarm signal.

[0032] In the above technical solution, the transmitting unit includes:

[0033] a transmitting end signal processing unit, connected to the monitoring host, and at least used to modulate the alarm signal into a radio signal;

[0034] The transmitting end antenna is connected to the transmitting end signal processing unit and is used to transmit the radio signal.

[0035] In the above technical solution, the signal receiving device includes:

[0036] A receiving antenna for receiving the radio signal;

[0037] A receiving-end signal processing unit, connected to the receiving-end antenna, and configured to at least demodulate the radio signal into external damage warning information;

[0038] The display unit is used to inform the operator of the external damage warning information through sound, light or video.

[0039] In the above technical solution, the installation position of the monitoring host is at least 6 meters above the ground and lower than the lowest point of the wire sag.

[0040] In summary, due to the adoption of the above technical features, the beneficial effects of the present invention are:

[0041] The power transmission line anti-external damage warning device disclosed in the present application can notify the construction vehicle driver on site immediately after detecting that construction machinery is approaching the overhead power transmission line conductor, thereby preventing the occurrence of external damage hazards at the source; it adopts a radio broadcasting method, which is not affected by the on-site network environment, and the alarm information can be broadcast directly and clearly to the cab, avoiding the driver's omission of information and causing erroneous operation.

[0042] At the same time, the transmission line anti-external damage warning device proposed in the present invention is designed with a reliable fixing structure and an adjustment structure, which can ensure the safety, reliability and easy adjustability of the transmission line anti-external damage warning device during assembly, and is suitable for different types of transmission lines and installation and use scenarios.

[0043] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0045] Figure 1 This is a perspective view of the assembly of a monitoring host in a power transmission line anti-external damage warning device according to one embodiment of the present invention;

[0046] Figure 2 This is a side view of an auxiliary adjustment bracket in a power transmission line anti-external damage warning device according to one embodiment of the present utility model;

[0047] Figure 3This is an assembly perspective view of an alarm integration module and a power supply module in a power transmission line anti-external damage warning device according to one embodiment of the present invention;

[0048] Figure 4 This is a structural perspective view of the second fixing bracket in the power transmission line anti-external damage warning device according to one embodiment of the present utility model;

[0049] Figure 5 The utility model is a perspective view of the overall assembly of a power transmission line anti-external damage warning device according to one embodiment of the present invention.

[0050] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names is as follows:

[0051] 1. First fixed bracket; 2. Second fixed bracket; 3. Monitoring host; 4. Alarm integration module; 5. Auxiliary adjustment bracket; 6. Power module; 7. Transmission line architecture;

[0052] 41. Warning light; 42. Sound;

[0053] 51. First support frame; 52. Second support frame; 53. Locking structure;

[0054] 21. Support arm; 22. Right-angle bracket;

[0055] 221. First connecting surface; 222. Second connecting surface. DETAILED DESCRIPTION

[0056] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0058] Refer to the following Figures 1 to 5 The following describes a power transmission line anti-external damage warning device provided according to some embodiments of the present invention.

[0059] Some embodiments of the present application provide a power transmission line anti-external damage warning device.

[0060] The first embodiment of the present invention provides a power transmission line anti-external damage warning device, which at least includes: a first fixing bracket 1, a second fixing bracket 2, a monitoring host 3, an alarm integration module 4 and a signal receiving device.

[0061] The first fixing bracket 1 and the second fixing bracket 2 are each fixedly connected to the transmission line structure 7. Typically, the transmission line structure 7 is a metal structure on a transmission pole or tower, such as a steel crossarm of a transmission line tower. However, any suitable location can be selected while meeting safety distance and space constraints. In one embodiment, the first fixing bracket 1 and the second fixing bracket 2 are each bolted to the steel crossarm of the transmission line tower.

[0062] The first fixed bracket 1 is used to fix the monitoring host 3, and the second fixed bracket 2 is used to fix the alarm integration module 4. The two are set separately. Since the monitoring host 3 and the alarm integration module 4 both have a certain volume, if the two are set as one (fixed in one place), for high-altitude towers with limited space, there will be certain difficulties in spatial layout. By using a separate and fixed method, the layout difficulty can be significantly reduced. In a specific embodiment, when the first fixed bracket 1 and the second fixed bracket 2 are fixed to the transmission line structure 7, they respectively form a cantilever structure, so that the monitoring host 3 and the alarm integration module 4 maintain a certain distance from the transmission line structure 7, which can also avoid the problem of visual obstruction caused by too close a distance.

[0063] The monitoring host 3 is mounted on the first fixed bracket 1. The monitoring direction of the monitoring host 3 is toward the lowest point of the conductor sag, and is used to generate an alarm signal when an operating vehicle intrudes into a preset space around the conductor. The specific monitoring method can adopt any one of the existing technologies, that is, the monitoring algorithm is well known to those skilled in the art and will not be described in detail here. In this disclosure, the lowest point of the conductor sag is used as a reference point. It can be understood that the lowest point of the conductor sag is the point closest to the ground of the transmission line. When the operating vehicle does not reach the height of the lowest point of the conductor sag, it will inevitably not touch other positions on the line.

[0064] The alarm integration module 4 is assembled on the second fixed bracket 2. The alarm integration module is connected to the monitoring host 3 by signal to obtain the alarm signal. The alarm integration module includes a local alarm unit and a transmitting unit. The local alarm unit is used to issue an audible and visual alarm locally according to the alarm signal, and the transmitting unit is used to convert the alarm signal into a radio signal; the signal receiving device is set on the working vehicle, for receiving the radio signal, and broadcasting external damage warning information to the operating personnel according to the radio signal.

[0065] Specifically, the alarm integration module 4 utilizes a radio communication mode between its transmitter and signal receiver. This allows for more reliable identification of contact risk between the work vehicle and the power transmission line when the noise level on site makes it difficult to directly discern the audible and visual alarm signals emitted by the local alarm unit. It is understood that the signal receiver can be located not only inside the work vehicle but also in any other desired location with better signal reception conditions, so as to provide timely and intuitive display of monitoring results to the operator.

[0066] In some embodiments, the transmitting unit includes a transmitting end signal processing unit and a transmitting end antenna; the transmitting end signal processing unit is connected to the monitoring host 3, and is at least used to modulate the alarm signal into a radio signal; the transmitting end antenna is connected to the transmitting end signal processing unit, and is used to transmit the radio signal. The signal receiving device includes a receiving end antenna, a receiving end signal processing unit, and a display unit; the receiving end antenna receives the radio signal; the receiving end signal processing unit is connected to the receiving end antenna, and is at least used to demodulate the radio signal into external damage warning information; the display unit is used to inform the operating personnel of the external damage warning information through sound, light, or video. This embodiment ensures that the on-site external damage warning information can be transmitted to the driver in a timely manner by converting, modulating, amplifying, and broadcasting the alarm signal at the transmitting end, and capturing, converting, demodulating, and restoring it at the receiving end, so as to prevent illegal driving behavior as soon as possible.

[0067] The modulation process generally involves adding the alarm signal's frequency, amplitude, and phase to a high-frequency carrier, creating a radio signal suitable for wireless transmission. The radio signal can also be further amplified by a power amplifier, increasing its voltage or current to a higher value to ensure reliable reception at the receiving end. Generally speaking, this ensures that operating machinery at transmission line construction sites within one kilometer of a potential line failure point can receive alarm information without loss.

[0068] like Figure 1 As shown, due to the space limitation of the transmission line structure 7, in order to ensure that the monitoring direction of the monitoring host 3 can reliably face the lowest point of the conductor sag under different circumstances, in some embodiments, the early warning device is further provided with an auxiliary adjustment bracket 5.

[0069] Specifically, the monitoring host 3 is fixedly connected to the first fixed bracket 1 through an auxiliary adjustment bracket 5; wherein, the monitoring host 3 is fixedly connected to the auxiliary adjustment bracket 5, and the auxiliary adjustment bracket 5 is used to provide the monitoring host 3 with the freedom of pitch adjustment in the vertical direction, thereby adjusting the monitoring direction of the monitoring host 3.

[0070] In a specific embodiment, Figure 2As shown, the auxiliary adjustment bracket 5 includes: a first support bracket 51, a second support bracket 52, and a locking structure 53. The first support bracket 51 is fixedly connected to the first fixed bracket 1; the second support bracket 52 is rotatably connected to the first support bracket 51, and the second support bracket 52 has at least one supporting surface, and the monitoring host 3 is fixedly connected to the supporting surface; the locking structure 53 is provided between the first support bracket 51 and the second support bracket 52, and is used to lock the relative rotation angle of the first support bracket 51 and the second support bracket 52.

[0071] exist Figure 2 In the illustrated embodiment, the main frames of the first support frame 51 and the second support frame 52 are identical and are symmetrically arranged in an upper and lower manner, that is, the first support frame 51 and the second support frame 52 both include a first side surface and a second side surface, and the two first side surfaces are connected by a rotatable connection method such as a hinge or a rotating shaft connection. Similarly, the two second side surfaces are also connected by a rotatable connection method such as a hinge or a rotating shaft connection, so that the first support frame 51 and the second support frame 52 are rotatably connected as a whole. At the same time, U-shaped positioning holes are provided on the first side surface and the second side surface. In this case, the locking structure 53 can adopt a bolt. After the angle of the first support frame 51 and the second support frame 52 is adjusted, the bolt is inserted into the positioning hole to lock the angle of the first support frame 51 and the second support frame 52. It is understandable that those skilled in the art can also adopt other rotatable connection methods and locking methods according to the design concept proposed in the present disclosure.

[0072] like Figure 3 As shown, the early warning device further includes a power module 6. The power module 6 has a housing, the alarm integration module 4 is fixedly connected to the housing of the power module 6, and the housing of the power module 6 is fixedly connected to the second fixed bracket 2. The power module 6 is electrically connected to the local alarm unit, the transmitting unit, and the monitoring host 3 to provide power.

[0073] In one specific embodiment, the power module 6 includes a battery unit and a photovoltaic power generation unit. The battery unit is electrically connected to the local alarm unit, the transmitter unit, and the monitoring host 3; the photovoltaic power generation unit is connected to the battery unit. In other words, the early warning device in this disclosure generates electricity through photovoltaic panels and simultaneously utilizes batteries for energy storage, thus resolving the power supply issue for the early warning device.

[0074] Continue reading Figure 3 In some embodiments, the local alarm unit includes a warning light 41 and a sound 42. The warning light 41 is used to issue a light warning locally according to the alarm signal and is usually located at the top of the device; the sound 42 is used to issue a warning broadcast locally according to the alarm signal.

[0075] To further improve the safety of the device, in some embodiments, Figure 4As shown, the second fixing bracket 2 includes a support arm 21 and a right-angle bracket 22. One end of the support arm 21 is fixedly connected to the housing of the power module 6; the right-angle bracket 22 is fixedly connected to the other end of the support arm 21. The right-angle bracket 22 includes a first connecting surface 221 and a second connecting surface 222 that are perpendicular to each other. The power transmission line structure 7 is fixedly connected to the first connecting surface 221 and the second connecting surface 222, respectively.

[0076] In some embodiments, the transmission line structure 7 can be directly connected to the first connection surface 221 and the second connection surface 222 by bolts. Figure 5 In the connection method, the transmission line structure 7 is schematically shown as an angle steel, and strip fixing holes are respectively provided on the first connection surface 221 and the second connection surface 222. Bolts are passed through the strip fixing holes, and nuts are used to fix the connection surface to a limb of the angle steel, thereby forming a fixed connection between the right-angle bracket 22 and the angle steel on two surfaces, which is more stable and reliable. At the same time, there is no need to drill holes on the angle steel, and it is suitable for transmission line structures 7 of different widths.

[0077] In some embodiments, the first fixing bracket 1 and the second fixing bracket 2 may have the same structure.

[0078] Generally, the monitoring host 3 is installed at a height of at least 6 meters above the ground and lower than the lowest point of the wire sag. The communication between the monitoring host 3 and the alarm integration module 4 can be wireless or wired.

[0079] In addition, due to the characteristics of transmission line towers, bolt connection is generally the best fixed connection referred to in this disclosure.

[0080] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples.

[0081] Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A power transmission line anti-external damage warning device, characterized in that: include: A first fixing bracket, fixedly connected to the transmission line structure; a second fixing bracket, fixedly connected to the transmission line structure; A monitoring host, mounted on the first fixing bracket, with the monitoring direction of the monitoring host facing the lowest point of the wire sag, for generating an alarm signal when an operating vehicle intrudes into a preset space around the wire; an alarm integration module, mounted on the second fixing bracket, the alarm integration module being connected to the monitoring host signal to obtain an alarm signal, the alarm integration module comprising a local alarm unit and a transmitting unit, the local alarm unit being used to emit an audible and visual alarm locally according to the alarm signal, and the transmitting unit being used to convert the alarm signal into a radio signal; The signal receiving device is arranged on the working vehicle, and is used for receiving the radio signal and broadcasting the external damage warning information to the working personnel according to the radio signal.

2. The power transmission line anti-external damage warning device according to claim 1, characterized in that: Also includes: Auxiliary adjustment bracket, the monitoring host is fixedly connected to the first fixed bracket through the auxiliary adjustment bracket; wherein, the monitoring host is fixedly connected to the auxiliary adjustment bracket, and the auxiliary adjustment bracket is used to provide the monitoring host with the freedom of pitch adjustment in the vertical direction, thereby adjusting the monitoring direction of the monitoring host.

3. The power transmission line anti-external damage warning device according to claim 2, characterized in that: The auxiliary adjustment bracket includes: a first supporting frame, fixedly connected to the first fixing frame; A second support frame is rotatably connected to the first support frame, the second support frame has at least one support surface, and the monitoring host is fixedly connected to the support surface; The locking structure is provided between the first support frame and the second support frame, and is used to lock the relative rotation angle of the first support frame and the second support frame.

4. The power transmission line anti-external damage warning device according to claim 1, characterized in that: Also includes: The power module has a shell, the alarm integration module is fixedly connected to the shell of the power module, and the shell of the power module is fixedly connected to the second fixed bracket; the power module is electrically connected to the local alarm unit, the transmitting unit and the monitoring host respectively to provide electrical energy.

5. The power transmission line anti-external damage warning device according to claim 4, characterized in that: The power module includes: A battery unit is electrically connected to the local alarm unit, the transmitting unit and the monitoring host respectively; The photovoltaic power generation unit is connected to the battery unit.

6. The power transmission line anti-external damage warning device according to claim 4, characterized in that: The second fixing bracket includes: A support arm, one end of which is fixedly connected to the housing of the power module; A right-angle bracket is fixedly connected to the other end of the support arm. The right-angle bracket includes a first connecting surface and a second connecting surface that are perpendicular to each other. The power transmission line structure is fixedly connected to the first connecting surface and the second connecting surface respectively.

7. The power transmission line anti-external damage warning device according to claim 1, characterized in that: The local alarm unit comprises: Warning light, used to issue a light warning locally according to the warning signal; The sounder is used to issue an alarm broadcast locally based on the alarm signal.

8. The power transmission line anti-external damage warning device according to claim 1, characterized in that: The transmitting unit comprises: a transmitting end signal processing unit, connected to the monitoring host, and at least used to modulate the alarm signal into a radio signal; The transmitting end antenna is connected to the transmitting end signal processing unit and is used to transmit the radio signal.

9. The power transmission line anti-external damage warning device according to claim 1, characterized in that: The signal receiving device comprises: A receiving antenna for receiving the radio signal; A receiving-end signal processing unit, connected to the receiving-end antenna, and configured to at least demodulate the radio signal into external damage warning information; The display unit is used to inform the operator of the external damage warning information through sound, light or video.

10. The power transmission line anti-external damage warning device according to claim 1, characterized in that: The installation position of the monitoring host is at least 6 meters above the ground and lower than the lowest point of the wire sag.

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