102 results about "Overhead power line" patented technology

The utility model discloses an unmanned aerial vehicle with a deicing device, and relates to the field of deicing of high-voltage overhead conductors, the unmanned aerial vehicle is provided with the deicing device, the deicing device comprises a microwave generator and an ultrasonic generator which are oppositely arranged, and a power transmission line is located between the microwave generator and the ultrasonic generator. Microwaves and ultrasonic waves emitted by the microwave generator and the ultrasonic generator face the power transmission line. According to the utility model, the ice layer is cracked by utilizing high-frequency vibration heating generated by ultrasonic waves and microwaves, so that the purpose of removing the ice layer is achieved. According to the method, a power grid line does not need to be contacted, and line damage possibly caused by direct impact is avoided.

An unmanned aerial vehicle (UAV) configured for autonomous operation includes an electric propulsion system comprising a plurality of motors and a plurality of rotors and a sensor system. A control system receives data from the sensor system for controlling the electric propulsion system. A battery system includes a plurality of battery cells and a charging system for receiving power a by electro-magnetic induction from a power line cable. The UAV is for inspection of AC-overhead power lines. A method includes operating the UAV comprising generating image data relating to an overhead power line by the sensor system, approaching a power line cable by the UAV, receiving power from the power line cable by the charging system and charging the battery with the power received, and the UAV taking off from the cable.

A control system 40 for operating a work machine 10 around an over-head power line 42 has an electric field sensor 41 and an operator input, such as a user interface 6. If the output from an electric

This invention discloses a cost control method for comparing and selecting mechanized construction route schemes for overhead power lines. The method involves planning the route based on actual project conditions, determining the initial route length L1, the terrain proportions of the areas traversed by the route, the overall short-distance transport distance, the construction scale, the selection of conductors and ground wires, and the selection of tower modules. It also calculates the cost per kilometer of the project structure under different terrain conditions. The route is then adjusted to be closer to existing rural roads, village roads, and farm roads, reducing the overall short-distance transport distance. The cost per kilometer of the project structure under different terrain conditions is calculated accordingly. Based on the difference in cost per kilometer before and after adjustment, combined with the project route length and the proportions of different terrains, the increased length ΔL of the economical route is calculated. The relationship between the difference between the adjusted route length L2 and the original route length and ΔL is determined. If L2 - L1 ≤ ΔL, the adjusted route is more economical. This method effectively plans more economical and reasonable route schemes that are convenient for mechanized construction.

This invention relates to the field of overhead power line maintenance technology and discloses a grounding operation robot, including a pole-climbing device, a robotic arm, and a grounding ring installation device. The pole-climbing device is used to climb power poles, and the robotic arm is mounted on the pole-climbing device. The grounding ring installation device includes a nut-tightening fixture, a grounding ring holder, a first connecting bracket, and a first drive mechanism. The first connecting bracket is connected to the robotic arm, and the robotic arm is used to drive the first connecting bracket to move. The nut-tightening fixture, the grounding ring holder, and the first drive mechanism are all mounted on the first connecting bracket. The grounding ring holder supports the grounding ring, and the first drive mechanism drives the nut-tightening fixture to move closer to and away from the grounding ring holder. The nut-tightening fixture is used to tighten the clamp bolts of the grounding ring. This grounding operation robot improves the safety of maintenance personnel, eliminates the need for a lift vehicle to support maintenance personnel, has fewer site restrictions, and improves the flexibility of maintenance operations.

Systems, methods, and apparatuses can control work machine movement to prevent collision with an overhead power line. With the work machine performing machine movement relative to the overhead power line, a combination of the magnitude of electric field sensed by any one of a plurality of electric field sensors and velocity of machine movement for an associated position and / or movement sensor can be monitored to determine whether such combination reaches or exceeds one or more predetermined thresholds. Operations regarding machine control can be performed responsive to the combination reaching or exceeding each of the one or more predetermined thresholds.

The invention discloses an electric tensioner and method for an overhead transmission line, and relates to the technical field of tensioner equipment, the electric tensioner comprises a supporting frame, a traction mechanism for pulling a cable is arranged on one side in the supporting frame, and an overhead conveying mechanism for regulating and controlling the traction tension of the cable is arranged on one side in the supporting frame; and a driving mechanism for driving the traction mechanism and the overhead conveying mechanism to rotate is arranged in the supporting frame. Passive torsion release is achieved through the conical wire wheel and the inclined arrangement, due to the fact that the wire wheel is of a conical structure and is arranged in an inclined mode, when a cable slides on the surface of the wire wheel, controlled sliding and self-adaptive rotation are generated under the controllable friction force effect provided by a rubber sheet, and through the synergistic effect of the conical wire wheel and the inclined arrangement, the cable can be driven to rotate in a controlled mode. Therefore, the cable gradually releases the internal accumulated torsion stress in the conveying process.

The application discloses an overhead transmission line spacer, and relates to the technical field of electric power fittings, which comprises a frame, a plurality of supporting arms provided on the frame, a wire clamp provided at one end of each supporting arm, a limiting pin provided at the other end of each supporting arm, a waist hole provided on the frame, and a swing channel provided on the frame for swinging of the lower arm. The limiting pin is inserted into the corresponding waist hole to limit swinging of the supporting arm. The supporting arm is composed of an upper arm and a lower arm. The upper arm is rotationally connected with the frame, and the limiting pin is arranged on the lower arm. The trigger mechanism and the accommodating cavity are arranged on the lower arm. The spare pin and the A elastic member are arranged in the accommodating cavity. The spacer for the overhead transmission line can automatically restore the limiting capacity after the original limiting function is lost, and the allowable swinging angle of the lower arm is limited in a range smaller than the original limiting range, so that the wire dancing is inhibited by stricter constraints, the phase-to-phase flashover and the fatigue risk of the fitting are significantly reduced, and the anti-dancing reliability and the line operation safety of the spacer under severe working conditions are greatly improved.

This utility model relates to recorders of emergency events and processes in electrical networks, specifically to fault location devices on overhead power lines (OPLs). The technical result consists of improving the fault location accuracy by taking into account the actual lengths of the OPL overhead sections. To this end, a unit for determining the actual wave propagation velocity in the damaged section and a wave fault location unit are connected via their additional inputs to the output of a unit for determining the actual length of the OPL overhead sections, the input of which is connected to a wire temperature sensor at the device's installation location.

The application relates to a power transmission line intelligent route selection method based on an adaptive node optimization ant colony algorithm, which comprises the following steps: based on geographic information system, environment factors are determined, a hierarchical analytic hierarchy process model is established, and various environment factors are quantified; based on a GIS grid map, a geographic space is divided into a regular matrix composed of multiple square units, power transmission line construction costs of each basic area are obtained by combining the hierarchical analytic hierarchy process model, and total route costs are obtained; according to the total route costs and the GIS grid map, intelligent route selection is carried out through the adaptive node optimization ant colony algorithm, and an optimal path is obtained. Compared with a traditional ant colony algorithm used for intelligent route selection, the ant colony algorithm used in the application increases adaptive adjustment, local variation and node optimization mechanisms, and the convergence precision and stability of the algorithm are improved; the application realizes a new overhead power line automatic optimization wiring method, and is helpful for automatically selecting the most economical route to establish a new line.

The utility model relates to power system transmission line technical field discloses an overhead power line protection hardware, including two fixed rings, the adjacent side of two fixed rings is provided with protection mechanism, the top of fixed ring is provided with stabilizing mechanism, the stabilizing mechanism is used for adaptive adjustment under extreme terrain, the bottom of fixed ring is provided with stabilizing component, the protection mechanism includes two buffer rings, the opposite side of two buffer rings is fixedly connected with fixed shaft, the outer wall middle end of fixed shaft is fixedly connected with stress block, the adjacent side of two stress blocks is fixedly connected with spring left and right ends all. In the utility model, after the snow melts, the spring and the buffer block reset the bent electric wire, avoid long -term deformation damage, effectively improve the problem of existing technology under heavy ice pressure loss electric wire, significantly improve the power line security and durability.

The invention relates to a foundation for a tower for a wind turbine, a transmitter, for example for mobile communications, or an overhead power line, with at least two superimposed foundation levels (2, 3), wherein at least two foundation levels (2, 3) each have at least two adjacent prefabricated concrete elements (4, 5), wherein the prefabricated concrete elements (4, 5) each have at least one base section (41, 51) and at least one web section (42, 52), each of which has a bottom surface (411, 511, 422, 522), wherein the at least one base section has at least one opening for receiving a tendon, which are arranged such that the openings of superimposed base sections (41, 51) are aligned, wherein at least one offset section (43, 53) is provided between the base section (41, 51) and the web section (42, 52) of the at least two concrete elements (4, 5) of at least one foundation level (2, 3). is,so that the undersides (422, 522) of the web sections (42, 52) of the concrete elements (4, 5) of at least two superimposed foundation levels (2, 3) can be arranged essentially at the same height.

This utility model discloses a ranging device for measuring the sag attitude of overhead lines, belonging to the field of overhead line sag detection technology. It includes a sag detection device and a protective assembly. The sag detection device is an integrated structure, and the protective assembly is disposed on the outside of the sag detection device. The protective assembly includes a metal shielding cover, an epoxy-siloxane mixed coating, a hard aluminum alloy protective layer, a waterproof membrane, a stainless steel inner protective layer, and a transparent protective plate. The metal shielding cover is disposed on the outside of the sag detection device, and its outer surface is coated with an epoxy-siloxane mixed coating. This ranging device for measuring the sag attitude of overhead lines, through the protective assembly, provides comprehensive protection for the device itself, effectively preventing damage from weather changes. The fixing assembly allows for quick and stable installation of the device, preventing it from easily loosening.

The utility model discloses an anti-torque ultrahigh-strength anti-corrosion wooden pole, which relates to the technical field of anti-corrosion wooden poles, and comprises an anti-corrosion wooden pole used for cable communication construction, optical cable wiring and power overhead; a clamping groove is formed in one side of the anti-corrosion wood pole, a limiting block is arranged on one side of the interior of the clamping groove, a clamping block is arranged on the other side of the anti-corrosion wood pole, and an abutting block is arranged at one end of the clamping block. According to the anti-corrosion wooden pole, the clamping block on the left side of one set of anti-corrosion wooden pole makes contact with the clamping groove in the other set of anti-corrosion wooden pole, the abutting block on the clamping block extends to the other end of the clamping groove along the hole in the left side of the limiting block in the clamping groove, and the other set of anti-corrosion wooden pole is shifted along the clamping groove till the clamping block and the abutting block just abut against the two ends of the limiting block; according to the anti-corrosion wooden pole, the two sets of short anti-corrosion wooden poles are lengthened into the long anti-corrosion wooden pole, when the anti-corrosion wooden pole is used, only the long anti-corrosion wooden pole needs to be cut, and when the short anti-corrosion wooden pole needs to be lengthened, the anti-corrosion wooden pole can be used by connecting the clamping blocks, the clamping grooves and the limiting blocks in series.

Provided are a non-contact live detection apparatus and a live detection method. The non-contact live detection apparatus includes a processing unit and a detection unit and an image collection unit which are both communicatively connected to the processing unit. The detection unit includes an electromagnetic wave sensor and at least three ultrasonic sensors. The image collection unit is configured to collect an insulation defect picture of an overhead power line detected by the detection unit. The processing unit is configured to obtain the spatial coordinates, two-dimensional pixel coordinates, electromagnetic wave intensity, and ultrasonic intensity of an insulation defect location according to a detection result of the detection unit and perform identification on the insulation defect picture.

This invention proposes a de-icing robot and its kit for overhead power transmission line ground wires suitable for helicopters, belonging to the field of power transmission line ground wire de-icing technology. To avoid the safety risks of personnel being hoisted on helicopters for de-icing operations, the de-icing robot for overhead power transmission line ground wires suitable for helicopters includes a hoisting mechanism (11) and a robot body (12) connected vertically. The hoisting mechanism (11) includes an outer cylinder (111) and a claw arm (112), which can extend outside the outer cylinder (111) or retract into the outer cylinder (111). The de-icing robot and its kit for overhead power transmission line ground wires suitable for helicopters can take advantage of the advantages of helicopter operating platforms, such as being unrestricted by terrain and having a wide coverage area, while also taking advantage of the safety, high efficiency, and stable performance of de-icing robots.

Systems, methods, and apparatuses can control work machine movement to prevent collision with an overhead power line. With the work machine performing machine movement relative to the overhead power line, magnitude or strength of the electric field output by the overhead power line can be sensed and compared against a first predetermined strength threshold. The machine movement of the work machine can be stopped responsive to the magnitude or strength of the sensed electric field reaching or exceeding the first predetermined strength threshold. Historical machine movement from the stopped position can be performed in reverse until all sensed strength or magnitude of the electric field is at or below a third predetermined strength threshold less than the first predetermined strength threshold.

The invention relates to a vehicle-mounted folding arm type network blocking device for distribution network overhead line crossing construction, and belongs to the technical field of electric power line construction crossing frames. The device is composed of a blocking net main arm, a cavel unfolding device, a pitching and rotating mechanism and a connecting base. A plurality of rolling shafts are arranged on the net blocking main arm, resistance during wire traction can be effectively reduced, the net blocking device is small in size and light in weight, the net blocking device is connected with a crane through an adjustable base, the net blocking device is suitable for various hoisting equipment such as spider cranes, crawler cranes and small-tonnage automobile cranes, and the net blocking device can be used in narrow spaces, farmlands or mountain forest zones. Transportation is convenient, and multiple transportation devices and on-site secondary assembly are not needed. And during construction, the crane can be parked in place for construction, so that the crane can be stopped at any time when walking and used at any time when rising, aerial work and near live-line work of personnel are not needed, and the safety is high. The problem that the structural form, transportation portability, construction efficiency and the like of an existing mobile crossing frame cannot completely meet the operation requirements of a distribution line is solved.

This utility model provides a fade-resistant 3D number plate for overhead power line towers, relating to the field of line number plates. The fade-resistant 3D number plate includes a mounting plate with multiple sets of through holes on its surface. These through holes form the information to be displayed on the mounting plate. Color bars are inserted into the through holes, protruding from the mounting plate and extending to its front. This fade-resistant 3D number plate for overhead power line towers, by setting multiple through holes in different positions to form the information to be displayed, and by placing color bars inside the through holes, displays the information through color contrast between the color bars and the mounting plate. Even if the color bars are worn away by wind and sand, exposing the internal material, the internal material remains the same color as the color bar itself, thus achieving a fade-resistant effect.

The invention discloses an unmanned aerial vehicle mounted grounding wire for an overhead power transmission line, and relates to the technical field of power transmission line maintenance equipment. Comprising an iron tower connector which is provided with a first lifting ring and a first clamping groove, the opening of the first clamping groove faces downwards, and the first clamping groove can be clamped to a corresponding iron tower cross rod through the first clamping groove; the wire connector is provided with a second lifting ring, a second clamping groove and a cable clamping mechanism, an opening of the second clamping groove faces downwards, the clamping end of the cable clamping mechanism is arranged in the second clamping groove, and the cable clamping mechanism is in transmission connection with the second lifting ring; the cable clamping mechanism can clamp a corresponding power transmission conductor under the gravity action of the second lifting ring, and the cable clamping mechanism is opened under the condition that the second lifting ring is subjected to upward pulling force; and two ends of the connecting cable are respectively and conductively connected with the corresponding iron tower connector and the wire connector. The device can be quickly mounted and dismounted through the unmanned aerial vehicle.

The present invention relates to a safety-enhancing overhead power line fixing mechanism using a support insulator, comprising a pole connection mechanism (10), a cross arm position adjustment mechanism (20), a cross arm (30), an LP insulator (80), a pressure sensing sensor (40), an abnormal warning light (50), a transmitter (60), and a control unit (70), thereby having the effect of quickly notifying of the occurrence of an abnormal load on the overhead power line and moving and fixing the cross arm in various horizontal directions in response to the installation environment of the overhead power line, while making it simple and convenient.

The utility model relates to cable deicing technical field, specifically disclose overhead transmission line deicing device, including casing, winding up line subassembly, vibration deicing subassembly and upper pressure wheel subassembly, through the coordination of winding up line subassembly and upper pressure wheel subassembly, simplify the line hanging process, only need unmanned aerial vehicle to pull the rope to span the cable, by double spool synchronous winding and lifting the whole machine height, cooperate the guide structure accurate positioning, make the upper and lower pressure wheel fast clamping cable form stable walking limit. When deicing, the upper pressure wheel dynamic pressure makes the cable partial distortion, utilizes the icing brittleness and promotes the ice layer breakage, and vibration subassembly high frequency peeling residual ice layer, and clamping structure continues to guarantee the robot stability. Its modular design realizes the pressure wheel avoidance and accurate clamping through horizontal and vertical drive mechanism, combines the lightweight line hanging scheme, significantly reduces the unmanned aerial vehicle load requirement, avoids the high altitude hoisting risk, improves the deicing efficiency and operation safety under the complex environment.

The invention provides a power transmission line flying risk assessment method and system, and the method comprises the steps: transmitting an image back and inputting the image into a preset assessment model after a camera captures the image of a suspected flying object on a line; the evaluation model sets at least two different random transformation parameters for the input images, and inputs the set images into the first network and the second network; wherein the first network and the second network have the same architecture and are provided with different parameter items, and each of the first network and the second network outputs a multi-dimensional characteristic value; and when the second network stops the gradient operation, only outputting the gradient to the first network for propagation, and updating the parameters of the second network through the index moving average of the parameters of the first network to obtain an evaluation result. Compared with the prior art, the method has the advantages that the judgment on the image of the suspected external floating object of the line is more accurate, the manual troubleshooting time is greatly shortened, the economic loss caused by line faults is reduced, and the power transmission reliability is improved.

The application provides a kind of overhead power line surveying and mapping image key area identification processing method and system, wherein the method comprises: obtaining the original image data collected by camera and the geographic position data of camera shooting position;Match the geographic position data with the preset geographic position database, obtain the natural material prior probability data set corresponding to the camera shooting position;Extract polarization feature and image content feature from the original image data, use double-branch attention network, establish material optical property table based on polarization feature in the first branch processing path, fuse natural material prior probability data set and image content feature in the second branch processing path;Based on material optical property table and fusion result, identify key area from original image data;Conduct confidence assessment on key area, generate key area confidence map.The application improves the identification accuracy of natural material key area in outdoor complex scene.

This invention discloses a method for measuring the sag of overhead power lines, taking into account the robot's own weight. The method includes the following steps: obtaining the elevations of a first and second power line tower; using a sag measuring robot to collect the real-time elevation of the horizontal midpoint of the conductor / ground wire between the first and second power line towers; and based on the elevations of the first and second power line towers and the real-time elevation of the horizontal midpoint, obtaining the real-time sag of the horizontal midpoint of the conductor / ground wire using a preset sag measurement calculation model. This method is simple and efficient, requires fewer parameters for calculation, and is more convenient to operate. It also accurately eliminates systematic errors caused by the weight of the sag measuring robot, resulting in more precise measurement and calculation results.

The present invention relates to a fixing device for overhead power distribution lines capable of detecting leakage current and improving safety. It comprises a pole connection mechanism (10), a cross arm position adjustment mechanism (20), a cross arm (30), a leakage current detection mechanism (40), and a leakage current notification device (50). This allows for visual notification of leakage current, enabling rapid leakage notification, and enables the cross arm to be moved and fixed in various horizontal directions in response to the installation environment of overhead power distribution lines, while being simple and convenient.

The invention discloses unmanned aerial vehicle automatic disassembly and assembly equipment for an overhead line, and the equipment comprises a frame body which is provided with a warning assembly; the clamping jaw is arranged on the frame body and comprises two hinged jaw bodies, and protruding parts are arranged on the inner sides of the two jaw bodies; the reset piece is arranged between the two claw bodies and used for applying closing and clamping force to the two claw bodies; when the two claw bodies are clamped, the two protruding parts abut against each other, the upper side positions of the two claw bodies form a crossed structure, and an annular structure is formed between the crossed structure and the two protruding parts to be hung on a line. In addition, the two clamping jaws are provided with unattended disassembly and assembly assemblies. The frame body is arranged for mounting the warning lamp assembly, and the clamping jaw capable of tightly clamping is arranged on the frame body so as to be hung on a line, so that a warning effect is provided for an aircraft in the air; besides, by arranging a controllable mounting and dismounting structure, the opened clamping jaws can be closed and clamped only by jacking up to enable the circuit to press down the U-shaped plate during mounting, the two clamping jaws can be opened by utilizing the gravity of the U-shaped plate to be taken down from the circuit only by jacking up a release rod during dismounting, and mounting and dismounting can be realized by utilizing an unmanned aerial vehicle. Manual high-altitude operation is avoided, and the risk is greatly reduced.

This invention provides a slider for eliminating height differences, which allows for the easy installation of temporary support tracks to resolve height differences between adjacent old and new mounting rails. [Solution] The step-leveling slider 1 comprises a temporary joint plate 2 fastened and fixed with bolts and nuts 6 so as to be in close contact with the outer surface of the auxiliary conductor 104, in place of the joint plate 107 that was removed at the joint of the existing and newly installed frame rails 102A and 102B; two fixing brackets 3 fixed to the conductive steel rail 103 at positions located at a predetermined distance in the extension direction from the joint of the existing and newly installed frame rails 102A and 102B; a support plate 4 made of a metal strip supported by the fixing brackets 3 near both ends and extending between the two fixing brackets 3; and a trolley wire 5 supported by the support plate 4 via a plurality of ears 7 so as to extend along the lower edge of the support plate 4.

Preventing a work machine 100 from contacting overhead power lines 109 using sensors 120 to determine if the magnitude or strength of the electric field output by the overhead power line exceeds a pre