CN210071588U - System for live test composite insulator hydrophobicity based on unmanned aerial vehicle - Google Patents
System for live test composite insulator hydrophobicity based on unmanned aerial vehicle Download PDFInfo
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- CN210071588U CN210071588U CN201920415788.0U CN201920415788U CN210071588U CN 210071588 U CN210071588 U CN 210071588U CN 201920415788 U CN201920415788 U CN 201920415788U CN 210071588 U CN210071588 U CN 210071588U
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Abstract
The utility model discloses a system for test composite insulator hydrophobicity with electricity based on unmanned aerial vehicle, it can replace artifical the detection, realizes convenient testing process based on unmanned aerial vehicle, is favorable to the high efficiency of composite insulator hydrophobicity to detect. The utility model comprises an unmanned aerial vehicle component with a photographing component; the bottom of the unmanned aerial vehicle component is provided with an unmanned aerial vehicle rack component and further comprises a water spraying device; the water spraying device comprises a suspension assembly, a water supply assembly, a control assembly and a water spraying assembly; the water spraying device is assembled on an unmanned aerial vehicle rack assembly of the unmanned aerial vehicle assembly through a suspension assembly; the control assembly comprises a control box, a micro electric pump and a control circuit board; the water spraying assembly further comprises a telescopic rod arranged on a telescopic rod base, and a spray head is arranged at the far end of the telescopic rod; the spray head comprises a connecting pipe connected with the telescopic rod.
Description
Technical Field
The utility model relates to a system of insulator hydrophobicity test specifically is used for the hydrophobic electrified test of composite insulator.
Background
At present, the main methods for detecting the hydrophobicity of the insulator include a static contact angle method (CA method), a dynamic contact angle method, a water spray grading method (HC method), a dynamic water dropping method and the like.
IEC/TS 62073-2003 gives three methods for testing hydrophobicity: contact methods, surface tension methods and water jet fractionation methods. The three test methods are specifically as follows:
1. contact angle method: the method for characterizing the hydrophobicity is characterized in that the hydrophobicity state of the composite insulator is characterized by a contact angle formed between the edge of a water drop placed on the surface of the insulator and the surface of a material.
2. The surface tension method is that the surface tension of a given mixed liquid indirectly reflects the hydrophobicity state of the composite insulator.
3. Water spraying classification method: the method is simple to operate, and the method sprays water mist on the surface of the insulator by using a common spray can during detection, and is provided by Swedish power transmission research institute at the earliest. The moisture state of the moisture on the surface of the insulator can be observed, and the grading criterion and the reference image are compared, so that the hydrophobicity state of the composite insulator can be obtained.
Three measurement methods were compared as follows:
among these measurement methods, the contact angle method is the most accurate measurement, the surface tension method is rarely used, and the contact angle method is widely used for the research of the hydrophobic property change characteristics and mechanism thereof of the composite insulator having a simple shape. The feasibility of measuring a dirty sample by the surface tension method and the cumulative effect of multiple measurements need to be further tested. Among the methods, the water spray grading method is the most simple and convenient to operate, and can be used for testing a composite insulator with a simple shape and also can be used for performing non-destructive testing on a real insulator, and the method is a common method for detecting the hydrophobicity of the composite insulator.
At present, the field measurement of hydrophobicity is mainly a water spraying classification method of Swedish power transmission research institute. The hydrophobicity of the insulator is divided into 7 grades of HC1-HC 7. Grade 1(HC1) corresponds to a completely hydrophobic surface, whereas grade 7(HC7) corresponds to a completely hydrophilic surface. Insulator hydrophobicity grading relates to multiple disciplines such as digital image processing and analysis, mode recognition, artificial intelligence and the like. The method for detecting the hydrophobicity of the insulator on line by using the image recognition method has the advantages of high accuracy, low price, high efficiency, no pollution and small labor capacity, is beneficial to scientific judgment of managers, and can achieve the aim of normally using the insulator by taking reasonable prevention and treatment measures in time. The article mainly completes the following work: the insulator hydrophobicity grading based on image analysis is researched, the insulator hydrophobicity grading system based on image analysis is realized, and the research is carried out on the aspects of static (sequence) image real-time acquisition and processing, bead contour extraction, bead feature extraction and selection, classification algorithm and the like. The DirectShow is used for realizing the collection, browsing, playing, pausing and image capturing of the image; the Gdi + technology is used for realizing the functions of processing, displaying, saving, closing and the like of the static images. And (3) segmenting the water drop image by adopting a maximum entropy threshold method, and extracting the boundary of the water drop in the image by utilizing a 4-neighborhood boundary tracking method. After the characteristics of a single water drop, such as the ratio of the long axis to the short axis of the ellipse, the shape points, the Fourier descriptor and the like, are obtained, the first type of characteristics of the water drop image is obtained by calculating each moment of the characteristics of the water drops. The other two characteristics of the water drop image can be calculated by utilizing the binary image formed by the water drop boundary: invariant moment and co-occurrence matrix. And (3) grading the hydrophobicity of the insulator by using a Support Vector Machine (SVM) classifier according to the characteristics of the water drop image.
The hydrophobicity of the substance is due to the action of hydrophobic groups, which are generally C-H bonds, such as grease-like substances. In the composite insulator industry, hydrophobicity, also known as wettability, is determined by the surface tension of the composite insulator outer insulation (silicone rubber), and characterizes the wettability of the composite insulator outer insulation by moisture.
The device for detecting hydrophobicity of the composite insulator by electrification is a water spraying classification method based on a hydrophobicity detection technology recommended by IEC and proposed by the Swedish institute of Electrical and Power Transmission and distribution (STRI), and comprises an electric water spraying device, a miniature digital camera, hydrophobicity analysis software and the like. The electric water spraying device sprays water mist to the insulator shed accurately and quantitatively according to the regulation of a water spraying classification method in a power industry standard (DL/T864-2004) through infrared remote control; acquiring a high-definition hydrophobicity picture on the surface of the umbrella skirt by using a digital camera, and analyzing by hydrophobicity analysis software; software is based on an advanced digital image processing technology, through extracting information entropy, seed rate, frequency spectrum amplitude and the like of a hydrophobicity picture, shape factors and area percentages of water drops or water stains are calculated, objective judgment is conducted on the hydrophobicity state of the composite insulator, and finally the hydrophobicity grade of the insulator is determined according to the grade characteristic description of hydrophobicity in DL/T810-2012.
According to GB/T24622-2009/IEC/TS 62073:2003, the measurement range is about 50cm 2-100 cm2, and the ratio between the length and the width should not be more than 1:3. The spraying distance is 25cm +/-10 cm, the duration is 20S-30S, and the typical water spraying amount in the spraying time is 10 mL-30 mL. The wettability measurement should be completed within 10s after the end of spraying. Therefore, water is sprayed for 25 times, and the amount of water is 0.75-1 mL each time. And immediately shooting and sampling after the water spraying is finished.
The current state of hydrophobicity testing technology and the existing defects are as follows:
in recent years, some enterprises have developed a measuring device for hydrophobicity of an insulator, which basically comprises an insulating rod and a water spraying device. The water spraying device is installed on the top end of the insulating rod, the insulating rod is lifted to stretch to the position near the insulator by one person climbing the tower, the other person climbing the tower is used for high-definition photographing, and water spraying operation is carried out by one person on the ground through remote control. The insulating rod is generally 3 to 6 meters, the dead weight is bigger, and it is very hard that ordinary people lift, and water jet equipment is heavier in addition, if not the people that physical power is good can not lift at all, more difficult assurance and insulator keep suitable distance. This work not only increases the physical demands of the field workers, but also increases the danger to the personnel.
The traditional manual inspection mode is poor in inspection effect, high in labor cost, large in subjective judgment, low in working efficiency and the like, and particularly in severe areas with environmental conditions, the scale of a power grid with an extra-high voltage as a framework is continuously expanded, a long-distance trans-regional power transmission line is rapidly increased, the traditional manual inspection mode cannot meet the new requirements of the development of a modern power grid, and the development of a smart power grid is hindered. The concrete expression is as follows: the condition that the inspector is on duty cannot be mastered at any time. The inspection personnel can not be effectively ensured to carry out inspection on the line according to the plan and the period, and the inspection working quality, the line state and the authenticity of the equipment operation data can not be ensured. The hidden trouble situation and tracking management can not be mastered in time. The hidden danger processing platform for effectively tracking and rechecking hidden dangers is lacked, so that the hidden danger of major accidents is caused. The safe operation condition of the power transmission line and the accessory facilities can not be mastered really and the reliable data recording and archiving are not facilitated. Currently, most patrols still use handwritten reports to record patrol information. The emergency repair process is realized by handwriting with paper, so that the emergency repair system is not comprehensive in information and high in randomness, and has the problems of data loss, recording errors and the like. The implementation of digital analysis management and assistant decision of the data is not facilitated. Historical data such as operation parameters and the like cannot be effectively utilized, classified data analysis and operation condition data of lines and auxiliary facilities cannot be effectively carried out, inquiry is not easy, and intelligent arrangement cannot be carried out on hidden danger types, equipment defects, seasonal and staged work points. And the inspection is not facilitated under severe conditions. If the staff is not familiar with the topography, can lose and patrol the line direction, go deep into the communication blind area sometimes, often be difficult to the accurate position of group and location of patrolling, cause the personal safety hidden danger to the staff.
Reviewing and summarizing practical experiences of power companies and other brother companies in recent years in our province, currently, no unmanned aerial vehicle intelligent water spray live detection technology for hydrophobicity of composite insulators is available in China, and the existing method mainly solves the problems that the insulator string is taken off and measured in a laboratory, and has the following main defects:
1) taking off the insulator string for ground measurement;
the detection time is limited, and the hydrophobicity state of the insulator cannot be detected at any time.
2) The method for detecting the hydrophobicity of the insulator by electrification by a controllable water spraying classification method is single;
at present, the method for detecting the hydrophobicity of the insulator by the controllable water spray grading method mainly comprises a water drop contact angle measurement method and a water spray grading method (namely, an HC method). Contact angle measurement is a laboratory method that requires a rigorous testing environment and has hysteresis effects in measuring dirty samples. However, the traditional HC method cannot be used for the charged detection of the hydrophobicity of the composite insulator, the judgment of the hydrophobicity state of a pollution sample is inexperienced, and the method is a manual naked eye judgment method and has large subjective dependence on people.
3) The hydrophobicity detection helicopter for the composite insulator is expensive in manufacturing cost;
the hydrophobic state of the composite insulator in operation is detected by adopting helicopter water spraying and photographing methods abroad. The helicopter is used for detecting the hydrophobicity of the composite insulator in a live way, has high manufacturing cost and is not suitable for popularization and application in China.
4) At present, a composite insulator hydrophobic unmanned aerial vehicle does not have a mature water spray classification method live-line detection technology and a system device.
Therefore, in the face of the continuous expansion of the power grid scale, under the planning of the scheme of unified and strong intelligent power grid development planning (2009-2020) of the national grid company, in order to meet the intelligent development demand of the power grid, in view of the rapid growth situation of long-distance trans-regional power transmission lines and the particularity of daily operation maintenance, overhaul, fault detection and electrification of power transmission lines with complex terrain, research and development and application of an artificial intelligent unmanned aerial vehicle technology are urgently needed, and the inspection quality and efficiency of the power transmission lines are improved.
In order to solve the problem, the utility model discloses an unmanned aerial vehicle carries on this kind of mode. Greatly reduces the requirements on operators, and more accurately and conveniently measures the hydrophobicity of the insulator by means of the latest technology.
Compare in traditional manual work and patrol and examine, unmanned aerial vehicle electric power is patrolled and examined and can show to improve and patrol and examine efficiency and can break through the restriction that the adverse circumstances was located to the circuit, uses unmanned aerial vehicle to carry out electric power and patrols and examines the means of a normalization and institutionalization that has progressively regarded as electric power and patrolled and examined. However, the current unmanned aerial vehicle power inspection is a mode of man-machine cooperative work, a professional flight control hand and photographing and video recording operators need to be configured for the flight operation of the unmanned aerial vehicle, the fault defect needs to be identified by the professionals in the later period through manual judgment of the acquired pictures, and in order to improve the line inspection efficiency, the unmanned aerial vehicle line inspection strategy and the typical defect identification technology need to be researched. In the aspect of the hydrophobic detection of the composite insulator in an electrified way by a controllable water spraying classification method, the traditional method mainly depends on manual tower climbing operation, and a quick, efficient, intelligent and automatic inspection mode is lacked. And adopt artificial intelligence unmanned aerial vehicle to develop the improvement efficiency that this aspect of work can be very big of patrolling and examining, improve composite insulator patrol and examine, the management and control level.
Therefore, the utility model discloses aim at studying the optimal strategy that realizes overhead transmission line and patrol and examine unmanned aerial vehicle, realize independently flight, navigation, water spray, wireless transmission, typical fault identification etc. and the mode is patrolled and examined with information-based, the optimization unmanned aerial vehicle that intellectuality is the characteristic to the construction, has very important meaning to improving insulator defect discovery ability and fortune dimension management and control level.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, disclose a system based on unmanned aerial vehicle's hydrophobic nature of live test composite insulator, it can replace artifical the detection, realizes convenient testing process based on unmanned aerial vehicle, is favorable to the high efficiency of composite insulator hydrophobicity to detect.
The utility model provides a technical scheme that its technical problem adopted is: the system for testing the hydrophobicity of the composite insulator in an electrified way based on the unmanned aerial vehicle comprises an unmanned aerial vehicle component with a photographing component; the bottom of the unmanned aerial vehicle component is provided with an unmanned aerial vehicle rack component and further comprises a water spraying device; the water spraying device comprises a suspension assembly, a water supply assembly, a control assembly and a water spraying assembly; the water spraying device is assembled on an unmanned aerial vehicle rack assembly of the unmanned aerial vehicle assembly through a suspension assembly;
the control assembly comprises a control box, a micro electric pump and a control circuit board; one end of the control box is communicated with a water supply pipe port of a water tank of the water supply assembly through a water supply pipe; the other end of the control box is provided with a telescopic rod base of the water spraying component through an assembling hole; the water inlet of the micro electric pump is communicated with the water supply pipe, and the water outlet of the micro electric pump is communicated with the telescopic rod of the water spraying assembly;
the water spraying assembly further comprises a telescopic rod arranged on a telescopic rod base, and a spray head is arranged at the far end of the telescopic rod; the shower nozzle contains the connecting pipe of being connected with the telescopic link, and the shower nozzle still contains the atomizer through ball joint and connecting pipe intercommunication.
As a preferred embodiment of the present invention: the telescopic rods are two-stage telescopic rods and comprise a first telescopic rod and a second telescopic rod, the first telescopic rod and the second telescopic rod are connected through a fastening bolt made of pure copper, the first telescopic rod and the second telescopic rod are respectively an outer telescopic rod and an inner telescopic rod made of stainless steel, and the first telescopic rod is 10mm in outer diameter, 8mm in inner diameter and 1000mm in length; the size of the second telescopic rod is 8mm in outer diameter, 6mm in inner diameter and 1000mm in length; the adjusting range of the telescopic rod is 1100-2000 mm.
As a preferred embodiment of the present invention: a wind shield with a cone structure is arranged on the telescopic rod close to the spray head; the telescopic rod base comprises an assembling disc which is assembled on the control box, an assembling pipe is arranged in the center of the assembling disc, one end of the assembling pipe is communicated with the telescopic rod, and the other end of the assembling pipe extends into the control box and is communicated with a water outlet of the micro electric pump; the telescopic rod is made of aluminum alloy; the windshield is made of ABS plastic.
As a preferred embodiment of the present invention: the water supply assembly further comprises a cover mounted on a water filling port of the tank body of the water tank; the control box is a shell with a cuboid structure; mounting lugs are arranged on two sides of the box body of the water supply assembly, and a bracket is assembled on each mounting lug; the suspension assembly comprises a water supply assembly elastic frame which is of a U-shaped structure and comprises two horizontal plates and vertical arms integrally formed at two ends of the horizontal plates, and the top ends of the two supports are simultaneously installed on the horizontal plates; the tops of the two vertical arms extend horizontally to form assembly flat plates, and the two assembly flat plates are connected to a frame cross beam of the unmanned aerial vehicle frame assembly through a quick pipe clamp respectively; the support is a 6mm aluminum alloy rod.
As a preferred embodiment of the present invention: the water tank is made of ABS plastic and has a volume of 1L; the miniature electric pump is a 12V/24W poking sheet type miniature water pump.
As a preferred embodiment of the present invention: the suspension assembly further comprises a control box elastic support, the control box elastic support is of a U-shaped structure and comprises two horizontal plates and vertical arms integrally formed at two ends of the horizontal plates, the tops of the two vertical arms horizontally extend to form an assembly flat plate, and the two assembly flat plates are connected to a frame cross beam of the unmanned aerial vehicle frame assembly through quick pipe clamps respectively.
As a preferred embodiment of the present invention: the number of the control box elastic supports is two; the control box elastic support and the water supply assembly elastic support are both formed by processing 304 stainless steel plates with the thickness of 1 mm.
As a preferred embodiment of the present invention: the quick pipe clamp comprises an assembly cylinder fixed on an assembly flat plate, a lower clamping plate is arranged at the top of the assembly cylinder, an upper clamping plate is hinged on the lower clamping plate, and an arc-shaped sleeving hole used for clamping a frame beam is formed in one opposite surface of the upper clamping plate and the lower clamping plate; the upper clamping plate and the lower clamping plate are fixed through butterfly bolts; the butterfly bolt comprises a bolt and a butterfly nut; the bolt is embedded on the lower clamping plate; the quick pipe clamp is made of 304 stainless steel.
As a preferred embodiment of the present invention: the unmanned aerial vehicle assembly also comprises an RTK anti-interference assembly, an anti-collision distance measuring assembly, a remote control assembly, an unmanned aerial vehicle power circuit and a battery; the control circuit board in the control box is connected with a motor driving circuit of a micro electric pump of the water spraying device through a power circuit of the water spraying device; the unmanned aerial vehicle frame of unmanned aerial vehicle subassembly still contains downwardly extending's support frame, and the bottom of support frame is located the below of control box and water supply subassembly.
As a preferred embodiment of the present invention: the anti-collision distance measuring assembly is a laser distance measuring assembly; the control circuit board is also integrated with a timer, and the timer is electrically connected with the micro electric pump; the unmanned aerial vehicle subassembly passes through wireless transmission module and the computer wireless communication of distal end.
Compared with the prior art, the utility model has the following advantage:
the utility model discloses a system for testing hydrophobicity of a composite insulator in an electrified way based on an unmanned aerial vehicle, which comprises an unmanned aerial vehicle component with a photographing component; an unmanned aerial vehicle rack component is arranged at the bottom of the unmanned aerial vehicle component; the unmanned aerial vehicle component with the photographing component can be the existing unmanned aerial vehicle as long as the unmanned aerial vehicle component has a sufficiently clear photographing requirement, so that the unmanned aerial vehicle and photographing and data transmission thereof can adopt the existing mature technology and can be reliably realized;
the utility model also comprises a water spraying device; the water spraying device comprises a suspension assembly, a water supply assembly, a control assembly and a water spraying assembly; the water spraying device is assembled on an unmanned aerial vehicle rack assembly of the unmanned aerial vehicle assembly through a suspension assembly; the suspension assembly is used for being reliably suspended on the unmanned aerial vehicle assembly, the control assembly is used for controlling a water pump (a miniature electric pump) to pump water, the water supply assembly is used for providing a selection, and the water spray assembly is used for spraying water to the composite insulator, so that the traditional mode of manually controlling water spray and photographing by using the insulating rod is replaced, and the detection efficiency is greatly improved;
the control component of the utility model comprises a control box, a micro electric pump and a control circuit board; one end of the control box is communicated with a water supply pipe port of a water tank of the water supply assembly through a water supply pipe; the other end of the control box is provided with a telescopic rod base of the water spraying component through an assembling hole; the water inlet of the micro electric pump is communicated with the water supply pipe, and the water outlet of the micro electric pump is communicated with the telescopic rod of the water spraying assembly; the utility model adopts the telescopic rod to adjust the length of the water spray component, which is easy to adapt to different field environments; the utility model has a spray head installed at the far end of the telescopic rod; the shower nozzle contains the connecting pipe of being connected with the telescopic link, and the shower nozzle still contains the atomizer through ball joint and connecting pipe intercommunication. The ball joint is connected with the atomizing nozzle, so that the atomizing nozzle can be adjusted at various angles, the adjusting function of the spraying angle can be increased, and the water spraying effect is guaranteed to reach the reliable detection standard.
Drawings
FIG. 1 is a schematic diagram of a system structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of the working process of the present invention;
fig. 3 is a schematic structural view of an embodiment of the water spraying apparatus of the present invention;
fig. 4 is a partial structural schematic view of the nozzle part of the present invention;
FIG. 5 is a schematic structural view of an embodiment of the water spray assembly of the present invention;
FIG. 6 is a partial schematic structural view of the water spray assembly of FIG. 3 with the water spray assembly removed;
fig. 7 is a schematic structural view of an embodiment of the telescopic rod of the present invention;
fig. 8 is a schematic structural view of an embodiment of the telescopic rod base of the present invention;
FIG. 9 is a schematic structural view of a preferred embodiment of the showerhead of the present invention;
FIG. 10 is a schematic view of a draft shield according to an embodiment of the present invention;
fig. 11 is a schematic structural view of a casing of the control assembly of the present invention;
FIG. 12 is a schematic structural view of an embodiment of the water supply assembly of the present invention;
FIG. 13 is a schematic structural view of a water tank according to an embodiment of the present invention;
FIG. 14 is a schematic structural view of one embodiment of a bracket of the water supply assembly of the present invention;
fig. 15 is a schematic structural view of an embodiment of the elastic support of the present invention;
fig. 16 is a schematic structural view of an embodiment of the quick pipe clamp of the present invention;
fig. 17 is a schematic structural diagram of an embodiment of a suspension assembly according to the present invention.
Description of reference numerals:
1-a remote control assembly, 2-an anti-collision distance measuring assembly, 3-an unmanned aerial vehicle power supply circuit, 4-a battery, 5-a water sprayer power supply circuit, 6-an unmanned aerial vehicle assembly, 7-a motor drive circuit, 8-an RTK anti-interference assembly, 9-a water sprayer, 10-a photographing assembly, 11-an unmanned aerial vehicle rack assembly, 12-a water sprayer assembly, 13-a suspension assembly, 14-a water supply assembly, 15-a control assembly, 16-a telescopic rod, 17-a nozzle, 18-a windshield, 19-a water tank, 20-a rack beam, 21-an elastic support, 22-a control box, 23-a water supply pipe, 24-a first telescopic rod, 25-a second telescopic rod, 26-an assembly plate, 27-an assembly pipe, 28-a connecting pipe, 29-ball joint, 30-atomizing nozzle, 31-shell, 32-assembly hole, 33-support, 34-water supply assembly elastic frame, 35-water supply assembly quick pipe clamp, 36-cover, 37-box, 38-mounting ear, 39-water supply pipe opening, 40-assembly cylinder, 41-sleeving hole, 42-butterfly bolt, 43-lower clamping plate, 44-upper clamping plate, 45-control box elastic support, 46-suspension assembly quick pipe clamp and 47-telescopic rod base.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
As shown in fig. 1 to 17, which show a specific embodiment of the present invention; as shown in the figure, the utility model discloses a system for the live-line test of the hydrophobicity of a composite insulator based on an unmanned aerial vehicle, which comprises an unmanned aerial vehicle component 6 with a photographing component 10; the bottom of the unmanned aerial vehicle component is provided with an unmanned aerial vehicle rack component 11, and the utility model also comprises a water spraying device; the water spraying device comprises a suspension assembly 13, a water supply assembly 14, a control assembly 15 and a water spraying assembly 12; the water spraying device is assembled on an unmanned aerial vehicle rack assembly of the unmanned aerial vehicle assembly through a suspension assembly;
the control assembly 15 comprises a control box 22, a micro electric pump and a control circuit board; one end of the control box 22 is communicated with a water supply pipe port 39 of the water tank 19 of the water supply assembly through a water supply pipe 23; the other end of the control box 22 is assembled with a telescopic rod base 47 of the water spray component 12 through the assembling hole 32; the water inlet of the micro electric pump is communicated with the water supply pipe 23, and the water outlet of the micro electric pump is communicated with the telescopic rod 16 of the water spraying assembly 12;
the water spraying component also comprises an expansion link 16 arranged on the expansion link base, and the far end of the expansion link is provided with a spray head 17; the spray head comprises a connecting tube 28 connected to the telescopic rod and an atomising spray head 30 communicating with the connecting tube via a ball joint 29.
Preferably, as shown in fig. 3, 5 and 7: the telescopic rods are two-stage telescopic rods and comprise a first telescopic rod 24 and a second telescopic rod 25 which are connected through a fastening bolt made of pure copper, the first telescopic rod and the second telescopic rod are respectively an outer telescopic rod and an inner telescopic rod made of stainless steel, and the first telescopic rod has the size of 10mm in outer diameter, 8mm in inner diameter and 1000mm in length; the size of the second telescopic rod is 8mm in outer diameter, 6mm in inner diameter and 1000mm in length; the adjusting range of the telescopic rod is 1100-2000 mm. The two-stage telescopic rod disclosed by the embodiment can realize maximization of an application range and minimization of load, and belongs to a preferred embodiment. The two-stage telescopic rod is freely telescopic and locked and loosened through the fastening bolt.
Preferably, as shown in fig. 3, 4, 5, 7, 10: a wind shield 18 with a cone structure is arranged on the telescopic rod 16 close to the spray head 17; the telescopic rod base comprises an assembling disc 26 which is used for being assembled on the control box, the center of the assembling disc is an assembling pipe 27, one end of the assembling pipe is communicated with the telescopic rod 16, and the other end of the assembling pipe extends into the control box 22 and is communicated with a water outlet of the micro electric pump; the telescopic rod is made of aluminum alloy; the windshield is made of ABS plastic. The windshield can be added to prevent water mist loss in the spraying process of the spray head, so that the water spraying effect is ensured; the structure of the telescopic rod base of the embodiment is very convenient for compact installation, so that the connection between the telescopic rod and the control box is more reliable.
Preferably, as shown in fig. 3, 6, 12, 13, 14, 15, 17: the water supply assembly also comprises a cover 36 mounted on the filler of a tank 37 of the tank 19; the control box is a shell 31 with a cuboid structure; mounting lugs 38 are arranged on two sides of the box body of the water supply assembly, and a bracket 33 is assembled on each mounting lug; the suspension assembly 13 comprises a water supply assembly elastic frame 34, the water supply assembly elastic frame 34 is of a U-shaped structure and comprises two horizontal plates and vertical arms integrally formed at two ends of the horizontal plates, and the top ends of two brackets 33 are simultaneously installed on the horizontal plates; the tops of the two vertical arms extend horizontally to form assembling flat plates, and the two assembling flat plates are connected to a frame cross beam 20 of the unmanned aerial vehicle frame assembly through a quick pipe clamp respectively; the support is a 6mm aluminum alloy rod. The water tank structure disclosed by the embodiment is reliably connected with the elastic frame through the bracket, so that the stability is ensured; the elastic frame of this embodiment possesses certain buffering effect for the operation process is steady more reliable.
Preferably, as shown in the figure: the water tank is made of ABS plastic and has a volume of 1L; the miniature electric pump is a 12V/24W poking sheet type miniature water pump.
Preferably, as shown in fig. 3, 6, 15, 16, 17: suspension component 13 still contains control box elastic support, and control box elastic support 45 contains two horizontal plates and integrated into one piece at the vertical arm at horizontal plate both ends for U type structure, and two vertical arm top levels extend and set up the equipment flat board, on two equipment flat boards respectively through a quick pipe clamp be connected to the frame crossbeam of unmanned aerial vehicle frame subassembly. The control box and the water tank are connected with the frame beam through the elastic frame (elastic support) and the quick pipe clamp respectively, the assembly is quick, the disassembly is convenient, and the maintenance and the storage are easy. The frame crossbeam is a common structure of current unmanned aerial vehicle subassembly, the counter weight of mainly used bottom and the equipment of bottom sprag frame.
Preferably, as shown in fig. 15 and 17: the number of the control box elastic supports 45 is two; the control box elastic support and the water supply assembly elastic support are both formed by processing 304 stainless steel plates with the thickness of 1 mm.
Preferably, as shown in fig. 16: the quick pipe clamp comprises an assembly cylinder 40 fixed on an assembly flat plate, the top of the assembly cylinder is provided with a lower clamping plate 43, the lower clamping plate is hinged with an upper clamping plate 44, and the opposite surfaces of the upper clamping plate and the lower clamping plate are provided with arc-shaped sleeving holes 41 for clamping a frame beam; the upper clamping plate and the lower clamping plate are fixed through butterfly bolts 42; the butterfly bolt comprises a bolt and a butterfly nut; the bolt is embedded on the lower clamping plate; the quick pipe clamp is made of 304 stainless steel. The structure of the quick pipe clamp is very convenient to clamp and release, and the whole water spraying device can be quickly disassembled and assembled.
Preferably, as shown in fig. 1: the unmanned aerial vehicle assembly further comprises an RTK anti-interference assembly 8, an anti-collision ranging assembly 2, a remote control assembly 1, an unmanned aerial vehicle power circuit 3 and a battery 4; the control circuit board in the control box is connected with a motor driving circuit 7 of a micro electric pump of the water spraying device through a power circuit 5 of the water spraying device; the unmanned aerial vehicle frame of unmanned aerial vehicle subassembly still contains downwardly extending's support frame, and the bottom of support frame is located the below of control box and water supply subassembly. The embodiment expands the functions of the whole system, so that the functions of the whole system are more perfect, and the more convenient, reliable and intelligent measurement process is realized.
Preferably, as shown in fig. 1: the anti-collision distance measuring assembly is a laser distance measuring assembly; the control circuit board is also integrated with a timer, and the timer is electrically connected with the micro electric pump; the unmanned aerial vehicle subassembly passes through wireless transmission module and the computer wireless communication of distal end. The timer can control the water spraying time, so that the water spraying is accurately controlled.
To sum up, the utility model discloses can the ration water spray, get in real time and shine, hydrophobicity image analysis (the analytic process adopts current analysis software to realize). Unmanned aerial vehicle carries the ration water jet equipment and is close to by survey insulator, begins to carry out the ration to spray water apart from being surveyed the suitable distance of insulator to return the ground control cabinet with the image in real time (bottom surface control cabinet contains one and installs the hydrophobic analysis software that is used for the analysis photo of shooing). The control console transfers the picture to a computer, and the hydrophobicity grade is judged through special hydrophobic analysis software.
The utility model comprises the following technical characteristics
(1) The water spraying amount and the water spraying time are accurately controlled by using a timer and a water spraying motor for driving.
(2) And (4) capturing images after water spraying is carried out in time by utilizing the high-definition camera.
(3) An RTK anti-interference technology is utilized to resist electromagnetic interference from a high-voltage environment.
(4) And the distance between the spray head and the insulator is accurately judged by utilizing a laser ranging technology.
Specifically, the utility model discloses insulator hydrophobicity detecting system based on unmanned aerial vehicle platform contains: remote control system, unmanned aerial vehicle platform, anticollision ranging system, RTK high-intensity magnetic field anti-jamming system, battery part, unmanned aerial vehicle power supply system, motor drive circuit power supply system, water jet equipment and the system of shooing. By adopting wireless remote control, people do not need to be worried about being hurt and causing ground fault. Each part is closely combined together through a reinforced wireless signal or an anti-interference wired connection mode. In the actual operation process, operating personnel takes off through remote control unmanned aerial vehicle, flies near the insulator, aims at the position, controls unmanned aerial vehicle water spray to take a picture after spraying water and take a record then the passback. And finally, analyzing the hydrophobicity grade of the insulator by powerful analysis software of a computer terminal.
The water spraying device of the utility model is a core component, has reasonable structure and can reliably realize the water spraying process;
owing to be the portable water spray structure of unmanned aerial vehicle, so whole structure will seem simply light. The whole structure comprises a control part, a water supply part, a water spraying part, a suspension part and the like,
(1) control section
The control part of the whole structure consists of a control box, a micro electric pump and a control circuit board. The control box is formed by injection molding of high-strength ABS plastic, and has light weight, high strength and good wear resistance. The micro electric pump adopts a 12V/24W poking sheet type small water pump, has the characteristics of small volume and high power, and can well spray water mist, so that the detection result meets the national standard. The micro electric pump is packaged in the micro electric pump cavity and is connected with the wireless signal receiving and micro electric pump controller through a lead. The miniature electric pump cavity is in threaded connection with the water tank through a connecting accessory, and the miniature electric pump is communicated with the inner cavity of the water tank through a water pipe. The rotatable nozzle is connected with the micro electric pump cavity through a connecting accessory, and the connecting accessory is connected with the micro electric pump through a water pipe to realize water supply to the rotatable nozzle. The rotatable nozzle is prepared by a special process, can randomly adjust the water spraying angle and spray solid cone water mist, thereby ensuring that all parts on the surface of a sample to be tested are uniformly soaked. The utility model discloses a control circuit board is as shown in fig. 11 (because water pump and circuit board are inside, so the schematic diagram can not show).
(2) Water supply part
The whole structure of the water supply part comprises a quick pipe clamp, a bracket, a water tank and the like. The quick pipe clamp adopts a bolt and a butterfly nut matched and clamped mode, wherein the bolt is embedded on the pipe clamp and can move. So adopt this kind of centre gripping mode because holistic water spray structure is bigger, and is irregular moreover, so unsuitable to deposit with unmanned aerial vehicle together, just so must adopt the convenient connected mode who dismantles. The pipe clamp is made of 304 stainless steel, so that the pipe clamp is high in strength and convenient to disassemble, and can completely meet the use requirements. The pipe clamp structure is shown in figure 16; the support adopts 6mm aluminum alloy rod, and manual buckling, the quality is light, convenient to use. The stability of control water tank that can be better makes the water tank can be better along with the unmanned aerial vehicle motion. The stent structure is shown in fig. 14; the water tank is formed by injection molding of ABS, and has light weight and good wear resistance. Because the time that unmanned aerial vehicle was flown at every turn is shorter, and the water yield of experiment water spray at every turn is less, combines the problem of unmanned aerial vehicle load again, and we chose 1L for the water tank volume. Completely meets the use requirements. The structure of the water tank is shown in FIG. 13; the whole structure is simple and elegant, and the disassembly is convenient. The whole structure is shown in FIG. 12;
(3) water spraying part
The water spraying part consists of a telescopic rod, a telescopic rod base, a spray head, a windshield and the like. The telescopic rod is composed of stainless steel tubes and two sections, wherein the size of the outer section is 10 multiplied by 8 multiplied by 1000mm, and the size of the inner section is 8 multiplied by 6 multiplied by 1000 mm. The size of the whole structure is changed to 1100-2000mm, and the operation at various positions can be met. The two sections of pipes are connected by the fastening bolt of pure copper, so that the pipe is convenient and quick, is not easy to rust and has good tightness. The whole structure has light weight and good toughness, and can adapt to complex environment. The structure is shown in FIG. 5; the telescopic link base is formed by the processing of aluminum alloy material through CNC, and the main effect is fixed telescopic link, connects the telescopic link with water pump (miniature charge pump). The whole structure has light weight and high strength. The connecting function can be well played, and the spray rod can be better stabilized in the detection process. This also gives and controls better the space of deploying of unmanned aerial vehicle staff. The atomizer that the shower nozzle adopted because there is the regulation among the detection standard, when detecting the hydrophobicity of composite insulator, moisture must present with the form of atomizing, so the atomizer of the aperture that the shower nozzle adopted, the material is pure copper, can be better avoid because of the jam problem that rust and bring. The universal joint is adopted between the front section and the tail section of the spray head, so that insulator surfaces which are not easy to spray can be better detected, and potential safety hazards can be better relieved. The structure of the spray head is shown in figure 9; the windshield is formed by injection molding of ABS plastic, is transparent and is light in weight. Firstly, the detection environment is field, so that the detection is complex and the high-altitude wind speed is high; another reason is because the produced wind speed of unmanned aerial vehicle self is great, in order to prevent that the water smoke from receiving the influence of natural wind at the in-process of spraying water, so the shower nozzle rear end will add the wind cap. The structure of the windshield is shown in fig. 10;
the whole structure of the water spraying part is relatively long, but the spray rod can be extended and contracted, so that the water spraying part is relatively convenient to carry. The whole structure has good toughness, and can meet the detection in a complex environment. The whole structure is shown in FIG. 5;
(4) suspension part
The hanging part comprises a quick pipe clamp, an elastic support and the like, and is light, simple and practical as a whole. Since the quick pipe clamp front end has already been described, it will not be repeated here. The elastic support is completed by the manual processing of the 304 stainless steel plate with the thickness of 1mm, has large elasticity and high strength, and can adapt to the suspension frames of unmanned aerial vehicles with various specifications. The structure is shown in FIG. 15; the suspension part is the structure that whole water jet equipment is connected with unmanned aerial vehicle, and intensity is big, and toughness is good, convenient operation, simple structure, unnecessary work in the reduction testing process that can be better. The whole structure is shown in FIG. 17;
the whole water spraying framework is simple and practical, the operation is convenient, the device can adapt to complex geographic environment, the workload of detection personnel is reduced, and the personal safety of the detection personnel is ensured. The structure of the whole device is shown in FIG. 3
To sum up, the utility model discloses an innovation point is as follows:
(1) a wireless control water spraying structure which is suitable for being carried by the unmanned aerial vehicle and accords with the hydrophobicity measurement standard is developed by solving the mounting mode and the water spraying mode;
(2) the controllability is improved by laser ranging and image real-time display.
(3) Acquiring a charged high-quality digital image and analyzing a hydrophobic digital image;
the above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The system for testing the hydrophobicity of the composite insulator in an electrified way based on the unmanned aerial vehicle comprises an unmanned aerial vehicle component with a photographing component; the bottom of unmanned aerial vehicle subassembly is provided with unmanned aerial vehicle frame subassembly, its characterized in that: also comprises a water spraying device; the water spraying device comprises a suspension assembly, a water supply assembly, a control assembly and a water spraying assembly; the water spraying device is assembled on an unmanned aerial vehicle rack assembly of the unmanned aerial vehicle assembly through a suspension assembly;
the control assembly comprises a control box, a micro electric pump and a control circuit board; one end of the control box is communicated with a water supply pipe port of a water tank of the water supply assembly through a water supply pipe; the other end of the control box is provided with a telescopic rod base of the water spraying component through an assembling hole; the water inlet of the micro electric pump is communicated with the water supply pipe, and the water outlet of the micro electric pump is communicated with the telescopic rod of the water spraying assembly;
the water spraying assembly further comprises a telescopic rod arranged on a telescopic rod base, and a spray head is arranged at the far end of the telescopic rod; the shower nozzle contains the connecting pipe of being connected with the telescopic link, and the shower nozzle still contains the atomizer through ball joint and connecting pipe intercommunication.
2. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 1, wherein: the telescopic rods are two-stage telescopic rods and comprise a first telescopic rod and a second telescopic rod, the first telescopic rod and the second telescopic rod are connected through a fastening bolt made of pure copper, the first telescopic rod and the second telescopic rod are respectively an outer telescopic rod and an inner telescopic rod made of stainless steel, and the first telescopic rod is 10mm in outer diameter, 8mm in inner diameter and 1000mm in length; the size of the second telescopic rod is 8mm in outer diameter, 6mm in inner diameter and 1000mm in length; the adjusting range of the telescopic rod is 1100-2000 mm.
3. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 1, wherein: a wind shield with a cone structure is arranged on the telescopic rod close to the spray head; the telescopic rod base comprises an assembling disc which is assembled on the control box, an assembling pipe is arranged in the center of the assembling disc, one end of the assembling pipe is communicated with the telescopic rod, and the other end of the assembling pipe extends into the control box and is communicated with a water outlet of the micro electric pump; the telescopic rod is made of aluminum alloy; the windshield is made of ABS plastic.
4. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 1, wherein: the water supply assembly further comprises a cover mounted on a water filling port of the tank body of the water tank; the control box is a shell with a cuboid structure; mounting lugs are arranged on two sides of the box body of the water supply assembly, and a bracket is assembled on each mounting lug; the suspension assembly comprises a water supply assembly elastic frame which is of a U-shaped structure and comprises two horizontal plates and vertical arms integrally formed at two ends of the horizontal plates, and the top ends of the two supports are simultaneously installed on the horizontal plates; the tops of the two vertical arms extend horizontally to form assembly flat plates, and the two assembly flat plates are connected to a frame cross beam of the unmanned aerial vehicle frame assembly through a quick pipe clamp respectively; the support is a 6mm aluminum alloy rod.
5. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 1, wherein: the water tank is made of ABS plastic and has a volume of 1L; the miniature electric pump is a 12V/24W poking sheet type miniature water pump.
6. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 1, wherein: the suspension assembly further comprises a control box elastic support, the control box elastic support is of a U-shaped structure and comprises two horizontal plates and vertical arms integrally formed at two ends of the horizontal plates, the tops of the two vertical arms horizontally extend to form an assembly flat plate, and the two assembly flat plates are connected to a frame cross beam of the unmanned aerial vehicle frame assembly through quick pipe clamps respectively.
7. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 6, wherein: the number of the control box elastic supports is two; the control box elastic support and the water supply assembly elastic support are both formed by processing 304 stainless steel plates with the thickness of 1 mm.
8. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 7, wherein: the quick pipe clamp comprises an assembly cylinder fixed on an assembly flat plate, a lower clamping plate is arranged at the top of the assembly cylinder, an upper clamping plate is hinged on the lower clamping plate, and an arc-shaped sleeving hole used for clamping a frame beam is formed in one opposite surface of the upper clamping plate and the lower clamping plate; the upper clamping plate and the lower clamping plate are fixed through butterfly bolts; the butterfly bolt comprises a bolt and a butterfly nut; the bolt is embedded on the lower clamping plate; the quick pipe clamp is made of 304 stainless steel.
9. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 1, wherein: the unmanned aerial vehicle assembly also comprises an RTK anti-interference assembly, an anti-collision distance measuring assembly, a remote control assembly, an unmanned aerial vehicle power circuit and a battery; the control circuit board in the control box is connected with a motor driving circuit of a micro electric pump of the water spraying device through a power circuit of the water spraying device; the unmanned aerial vehicle frame of unmanned aerial vehicle subassembly still contains downwardly extending's support frame, and the bottom of support frame is located the below of control box and water supply subassembly.
10. The unmanned aerial vehicle-based system for electrified testing of hydrophobicity of composite insulator of claim 9, wherein: the anti-collision distance measuring assembly is a laser distance measuring assembly; the control circuit board is also integrated with a timer, and the timer is electrically connected with the micro electric pump; the unmanned aerial vehicle subassembly passes through wireless transmission module and the computer wireless communication of distal end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920415788.0U CN210071588U (en) | 2019-03-29 | 2019-03-29 | System for live test composite insulator hydrophobicity based on unmanned aerial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920415788.0U CN210071588U (en) | 2019-03-29 | 2019-03-29 | System for live test composite insulator hydrophobicity based on unmanned aerial vehicle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474080A (en) * | 2020-04-22 | 2020-07-31 | 国网河南淅川县供电公司 | Method for detecting hydrophobicity of in-use insulator |
| CN111474079A (en) * | 2020-04-22 | 2020-07-31 | 国网河南淅川县供电公司 | In-use insulator hydrophobicity detection equipment and use method thereof |
| CN111474081A (en) * | 2020-04-22 | 2020-07-31 | 国网河南淅川县供电公司 | In-use insulator hydrophobicity detection device and parameter configuration method thereof |
| CN113955120A (en) * | 2021-11-23 | 2022-01-21 | 中国南方电网有限责任公司超高压输电公司梧州局 | Insulator hydrophobicity test device based on unmanned aerial vehicle |
| CN114324070A (en) * | 2021-12-10 | 2022-04-12 | 国网内蒙古东部电力有限公司电力科学研究院 | Outdoor detection method, recording medium and system for surface hydrophobicity of high-voltage bushing umbrella skirt |
-
2019
- 2019-03-29 CN CN201920415788.0U patent/CN210071588U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474080A (en) * | 2020-04-22 | 2020-07-31 | 国网河南淅川县供电公司 | Method for detecting hydrophobicity of in-use insulator |
| CN111474079A (en) * | 2020-04-22 | 2020-07-31 | 国网河南淅川县供电公司 | In-use insulator hydrophobicity detection equipment and use method thereof |
| CN111474081A (en) * | 2020-04-22 | 2020-07-31 | 国网河南淅川县供电公司 | In-use insulator hydrophobicity detection device and parameter configuration method thereof |
| CN113955120A (en) * | 2021-11-23 | 2022-01-21 | 中国南方电网有限责任公司超高压输电公司梧州局 | Insulator hydrophobicity test device based on unmanned aerial vehicle |
| CN114324070A (en) * | 2021-12-10 | 2022-04-12 | 国网内蒙古东部电力有限公司电力科学研究院 | Outdoor detection method, recording medium and system for surface hydrophobicity of high-voltage bushing umbrella skirt |
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