CN108988199A - Power transmission line fitting crimp quality detection device - Google Patents
Power transmission line fitting crimp quality detection device Download PDFInfo
- Publication number
- CN108988199A CN108988199A CN201810707473.3A CN201810707473A CN108988199A CN 108988199 A CN108988199 A CN 108988199A CN 201810707473 A CN201810707473 A CN 201810707473A CN 108988199 A CN108988199 A CN 108988199A
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- China
- Prior art keywords
- transmission line
- power transmission
- ring body
- detection device
- aircraft
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Electric Cable Installation (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention relates to a kind of power transmission line fitting crimp quality detection devices, comprising: controller；Aircraft, the aircraft and the controller are electrically connected；Detection components, the detection components include the opposite ray emitter and ray receiver being set on the mounting rack and cooperatively form sense channel of mounting rack and interval；And hanging ring, the hanging ring is set on the mounting rack and is detachably connected with the aircraft, for being fixed temporarily the detection components on the transmission line.It is automatically mounted on transmission line of electricity as described above, the device of the technical program can be realized detection device, climbs to the high point manual working without testing staff, detection efficiency can be greatly promoted, reduce testing cost, while promoting operation safety and reliability.
Description
Technical field
The present invention relates to transmission line faultlocating technical fields, detect and fill more particularly to a kind of power transmission line fitting crimp quality
It sets.
Background technique
The crimping armor clamps such as strain clamp, splicing sleeve are used for the linking of different conductor, wide because light inexpensive, easy for installation
Hair is applied in electricity overhead power transmission line.In recent years, in transmission line of electricity operational process, have many because strain clamp or connecing
The route interruption of service that the crimp quality of continuous pipe is unqualified and causes.And currently, for used in newly-built work transmission line
The examination of the crimp quality of strain clamp and splicing sleeve is only limitted to the appearance detection after crimping installation, and certain technical conditions are preferable
Area, then need in testing staff's climbing tower to eminence, detection device be provisionally attached to the line part equipped with crimping armor clamp
Position, personnel to be detected start to carry out coherent detection operation after leaving again later.Not only detection efficiency is low for such mode, manpower
It is at high cost, and the personal safety of testing staff, there are greater risk, operation mode security reliability is low.
Summary of the invention
Based on this, it is necessary to provide a kind of power transmission line fitting crimp quality detection device, it can be achieved that detection device is pacified automatically
Be attached on transmission line of electricity, climb to the high point manual working without testing staff, detection efficiency can be greatly promoted, reduce detection at
This, while promoting operation safety and reliability.
Its technical solution is as follows:
A kind of power transmission line fitting crimp quality detection device, comprising:
Controller；
Aircraft, the aircraft and the controller are electrically connected；
Detection components, the detection components include that mounting rack and interval opposite be set on the mounting rack and cooperate
Form the ray emitter and ray receiver of sense channel；And
Hanging ring, the hanging ring are set on the mounting rack and are detachably connected with the aircraft, are used for institute
Detection components are stated to be fixed temporarily on the transmission line.
When working using above-mentioned power transmission line fitting crimp quality detection device, testing staff can stand on the ground, pass through
Operation controller makes aircraft takeoff, carries detection components and is gradually flown together at crimping armor clamp to be detected；Immediately
, posture and position by manipulation adjustment aircraft enable hanging ring to be articulated on transmission line of electricity, to be detected at this time
Crimping armor clamp is located exactly in the sense channel between ray emitter and ray receiver, so can be in crimping armor clamp
Portion's quality of connection carries out detection operation, and at the same time, aircraft can hover over high-altitude or be back to ground.As described above, this
The device of technical solution can be realized detection device and be automatically mounted on transmission line of electricity, climb to the high point manually without testing staff
Operation can greatly promote detection efficiency, reduce testing cost, while promoting operation safety and reliability.
The technical solution of the application is further described below:
It in one of the embodiments, further include being detachably connected with the aircraft and removable with the transmission line of electricity
Unload hook cooperation anti-fall hook, the aircraft include the first motion arm and the second motion arm, first motion arm with it is described
Anti-fall hook connects, second motion arm are connect with the hanging ring.
It in one of the embodiments, include two anti-fall hooks and two hanging rings, two anti-fall hooks
It is arranged at intervals on the installation mounting rack and is detachably hooked with the transmission line of electricity with two hanging rings and match
It closes.
The hanging ring includes pulling rope, activity ring body and the fixation equipped with disengaging notch in one of the embodiments,
Ring body, one end of the fixed ring body offers installing port, other end closing, and the fixed ring body extends along a length thereof direction
Be also provided with the sliding cavity being connected to the installing port, the activity ring body be slidably set in the sliding cavity and with it is described
Notch cooperation able to turn on or off is passed in and out, one end of the pulling rope is connect with the activity ring body, the other end and second motion arm
Connection.
The free end of first motion arm is lower than second operation in a longitudinal direction in one of the embodiments,
The free end of arm.
The hanging ring further includes limit card convex in one of the embodiments, and the side wall of the fixed ring body offers
The guide groove being connected to the sliding cavity, the limit card convex connect with the activity ring body and are slidably arranged in the guiding
In slot, the one end of the pulling rope far from second motion arm is connect with the limit card convex.
The hanging ring further includes anti-drop end cover in one of the embodiments, and the anti-drop end cover is fixedly arranged on described solid
Determine ring body to offer one end of the installing port and cooperate with the limiting card convex positive stop.
It in one of the embodiments, further include dynamic clamping head and quiet clamping head, the dynamic clamping head and quiet clamping head is installed in the sliding cavity,
And it supports between one end set on the activity ring body and the closed end of the fixed ring body.
It in one of the embodiments, further include image capture part, described image intake part is set on the aircraft
And it is communicated to connect with the controller.
It in one of the embodiments, further include image analysis showed device, described image is analysis shows that device and the control
Device, the ray receiver communicate to connect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of power transmission line fitting crimp quality detection device described in one embodiment of the invention；
Structural schematic diagram when Fig. 2 is the original state of hanging ring in Fig. 1 shown device；
Structural schematic diagram when Fig. 3 is the working condition of hanging ring shown in Fig. 2.
Description of symbols:
100, aircraft, the 110, first motion arm, the 120, second motion arm, 200, detection components, 210, mounting rack, 220,
Ray emitter, 230, ray receiver, 300, sense channel, 400, hanging ring, 410, pulling rope, 420, activity ring body,
430, fixed ring body, 432, disengaging notch, 434, sliding cavity, 440, limit card convex, 450, anti-drop end cover, 460, elastic reset
Part, 500, anti-fall hook.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only to solve
The present invention is released, and the scope of protection of the present invention is not limited.
It should be noted that when element is referred to as " being fixedly arranged on ", " being set to " or " install in " another element, it can be with
Directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements；One element and another element
The concrete mode being fixedly connected can be achieved by the prior art, and details are not described herein, it is preferred to use the fixation side of threaded connection
Formula.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Heretofore described " first ", " second " do not represent specific quantity and sequence, are only used for the differentiation of title.
As shown in Figure 1, the power transmission line fitting crimp quality detection device of the embodiment shown for the application, comprising: control
Device (not shown) processed；Aircraft 100, detection components 200 and hanging ring 400；Wherein, controller is for making testing staff on ground
On carry out the relevant control operation of detection operation, such as can be the mobile terminals such as the panel for being preset with operation sequence, mobile phone, or
The dedicated operation panel of person, operation handle etc..Aircraft 100 is then for replacing traditional manpower, in such a way that flight carries
It will test component 200 to be transported at power transmission line, optionally, aircraft 100 can be unmanned plane, various flight model plane etc..Detection
Component 200 is then by having an X-rayed crimping armor clamp inside quality of connection by detected ray to complete detection operation.And hanging ring 400 is then
It is fixed on the transmission line to will test component 200 when for carrying out detection operation, to mitigate the load of aircraft 100, saving energy
Source loss.
Specifically, the aircraft 100 is electrically connected with the controller；The detection components 200 include mounting rack
210 and the opposite ray emitter 220 for being set on the mounting rack 210 and cooperatively forming sense channel 300 in interval with penetrate
Line receiver 230；The hanging ring 400 is set on the mounting rack 210 and is detachably connected with the aircraft 100, uses
It is fixed temporarily on the transmission line in by the detection components 200.
When working using above-mentioned power transmission line fitting crimp quality detection device, testing staff can stand on the ground, pass through
Operation controller makes aircraft 100 take off, and carries detection components 200 and is gradually flown together to close to crimping armor clamp to be detected
Place, and then, posture and position by manipulation adjustment aircraft 100 enable hanging ring 400 to be articulated to transmission line of electricity
On, crimping armor clamp to be detected is located exactly at the sense channel 300 between ray emitter 220 and ray receiver 230 at this time
It is interior, it can so carry out quality of connection inside crimping armor clamp and carry out detection operation, and at the same time, aircraft 100 can hover
In high-altitude or it is back to ground.As described above, the device of the technical program, which can be realized detection device, is automatically mounted into power transmission line
On the road, it climbs to the high point manual working without testing staff, detection efficiency can be greatly promoted, reduce testing cost, promoted simultaneously
Operation safety and reliability.
Mounting rack 210 is in the present embodiment the frame structure made of metal rod, and main body frame part is default
Position Design has cuff, is respectively used to the fixed ray emitter 220 of banding and ray receiver 230, structure is simple, bonding strength
Height, easily fabricated implementation.
In an alternative embodiment, device (to the abbreviation of power transmission line fitting crimp quality detection device, similarly hereinafter) further includes
Image analysis showed device (not shown), described image is analysis shows that device is communicated with the controller, the ray receiver 230
Connection.Ray emitter 220 is used for the X-ray transmission that will generate to crimping armor clamp to be measured, can from charged pool supply of electrical energy,
Or it is worked by controller supply of electrical energy；Receiving instrument is used to receive the X-ray light through crimping armor clamp is detected, at this point, crimping
The internal image of fitting can be transferred to controller, and via controller is transmitted further to image analysis showed device, be in after its analysis processing
In face of present testing staff, it can intuitively observe very much that the inside quality of connection of crimping armor clamp meets safety standard.Specifically
Ground, image analysis showed device can be plate, notebook, indicating & controlling device etc..
When power transmission line antenna height when certain areas is lower, completing aforesaid operations can be based entirely on the mesh of testing staff
Depending on carrying out, but occasion higher for power transmission line antenna height, and continue reliance on and visually complete relevant operation then difficulty is big, precision
It is low, and there are some potential safety problemss.Based on this, in further carrying out example, device further includes that image capture part (does not show
Out), described image intake part is set on the aircraft 100 and communicates to connect with the controller.By image capture part,
Can captured in real-time eminence transmission line of electricity and crimping armor clamp image, enable operating personnel by the image frame flexibly, essence
The position of quasi- control aircraft 100 and posture, guarantee that hanging ring 400 can be fast and accurately articulated on power transmission line, are conducive to
Promote detection efficiency and quality.
Please continue to refer to Fig. 1, and it is articulated to hanging ring 400 due to the same position for crossing adjustment aircraft 100 and posture
It is to need to spend the adjustment period of a period of time on power transmission line, and in the process to operating personnel to aircraft 100
Operative skill is more demanding, otherwise will lead to aircraft 100 and flight failure occurs and falling from high altitude, there are security risks.Thus
Safe measure is exactly that first will test component 200 to carry out relevant operation again on the transmission line to prevent the fixation of eye protection.Thus exist
In another alternative embodiment, device further include be detachably connected with the aircraft 100 and with the detachable hook of the transmission line of electricity
The anti-fall hook 500 of cooperation is hung, the aircraft 100 includes the first motion arm 110 and the second motion arm 120, first operation
Arm 110 is connect with the anti-fall hook 500, and second motion arm 120 is connect with the hanging ring 400.In this way, when work, it can
Manipulation aircraft 100 keeps anti-fall hook 500 first reliable with power transmission line mounting, eliminates the hidden danger of potential falling from high altitude in advance, later
Adjusting aircraft 100 again mounts hanging ring 400 and power transmission line, and fixation at anti-fall hook 500 and 400 liang of hanging ring is consequently formed
Dual fail-safe mounting structure further improves the operational reliability of device.
Specifically, the free end of the first motion arm 110 and the second motion arm 120 is separately installed with automatically controlled fixture, for
Anti-fall hook 500 and hanging ring 400 connect, namely after the completion of anti-fall hook 500 and hanging ring 400 and ground wire and conducting wire mounting, control
Device processed can control automatically controlled fixture and loosen, and enable 100 return value deck alert of aircraft.Automatically controlled fixture can be in the prior art
In selected realize, details are not described herein.
Further, device includes two anti-fall hooks 500 and two hanging rings 400, two anti-fall hooks
500 and two hanging rings 400 be arranged at intervals at it is on the installation mounting rack 210 and removable with the transmission line of electricity
Unload hook cooperation.In this way, mount fixed point by the way that setting is more, further degree can be firmly installed by lifting device.Peace
After dress, two anti-fall hooks 500 are fixed with the ground wire mounting being located above, and two mounting rings are then solid with the conducting wire mounting below ground wire
Determine and be located at the two sides of crimping armor clamp to be measured (such as strain clamp, splicing sleeve etc.).
And it should be noted that the spacing of upper and lower layer conductor is different due to different electric power pylons, thus in order to protect
The applicable ability of card device, the structure of anti-fall hook 500 may be designed to the combination of coupler body and lanyard, and the length of lanyard should be can
With adjusting, such as flexible rope, elastic string etc..And it need to guarantee every time using the length adjustment of preceding lanyard at slightly larger than upper and lower level
The spacing of conducting wire about 0.3m.In addition, the lanyard is made of flexible material, so it is convenient for the first motion arm 110 of aircraft 100
Spacing is controlled with the second motion arm 120.
Continuing with ginseng refering to Fig. 2 and Fig. 3, on the basis of the above embodiments, the hanging ring 400 includes pulling rope 410,
Activity ring body 420 and fixation ring body 430 equipped with disengaging notch 432, one end of the fixed ring body 430 offers installing port,
Other end closing, and the fixed ring body 430 extends along a length thereof direction and is also provided with the sliding cavity being connected to the installing port
434, the activity ring body 420 be slidably set in the sliding cavity 434 and with the disengaging notch 432 cooperation able to turn on or off,
One end of the pulling rope 410 is connect with the activity ring body 420, and the other end is connect with second motion arm 120.In this way,
When anti-fall hook 500 first tangles the ground wire on upper layer, anti-fall hook 500 is tensioned at this time, and mounting rack 210 and fixed ring body 430 are certainly
Have under body gravity to the trend of whereabouts and tenses one end of pulling rope 410；And then aircraft 100 only needs flight one upwards small
Section distance, the other end for pullling pulling rope 410 move up, can synchronize pulling activity ring body 420 and move in sliding cavity 434
And make to pass in and out the opening of notch 432, it so that the conducting wire of lower layer is inserted in completion installation in fixed ring body 430 and fix.Above-mentioned knot
The mode of operation of structure is simple, is conducive to promote operating efficiency, while mounting intensity and high reliablity.
Specifically, the first motion arm 110 and the second motion arm 120 are integrated or are removably mounted aircraft 100
The body of rod on body floor, the free end of first motion arm 110 are lower than second motion arm 120 in a longitudinal direction
Free end.Anti-fall hook 500 is mounted on the free end of the first motion arm 110 as a result, and pulling rope 410 is mounted on the second motion arm
On 120 free end, and there are differences in height only to be needed at this time by controlling the length relation of the difference in height Yu anti-fall hook 500 for the two
The height and position of aircraft 100 is slightly adjusted, so that the self weight of device and the upper lifting power synergistic effect of aircraft 100
Make activity ring body 420 and fixed ring body 430 occur to open disengaging notch 432 with respect to sliding, can more fast, easily with
Conducting wire completes mounting operation.
Please continue to refer to Fig. 2, the hanging ring 400 further includes limit card convex 440, and the side wall of the fixed ring body 430 is opened
Equipped with the guide groove being connected to the sliding cavity 434, the limit card convex 440 is connect and slidably with the activity ring body 420
It is arranged in the guide groove, the one end of the pulling rope 410 far from second motion arm 120 and the limit card convex 440
Connection.The length of guide groove and the length adaptation of activity ring body 420, thus by the setting of limit card convex 440, in guarantee activity
While ring body 420 and smooth, the reliable opposite sliding of fixed ring body 430, moreover it is possible to prevent the two to be detached from, improve hanging ring
400 overall structure stability, and when activity ring body 420 is moved to the extreme position at both ends, limit card convex 440 can also with lead
Both ends cell wall on slot length direction offsets and realizes positioning.
Please continue to refer to Fig. 3, further, the hanging ring 400 further includes anti-drop end cover 450, the anti-drop end cover 450
It is fixedly arranged on the fixed ring body 430 and offers one end of the installing port and limited with the limit card convex 440 and cooperate.In this way,
When activity ring body 420 stretches out closing disengaging notch 432, it is solid that limit card convex 440 abuts realization positioning with anti-drop end cover 450 just
It is fixed, it can prevent limit card convex 440 and activity ring body 420 from separating from fixed ring body 430.
As shown in Fig. 2, further, device further includes dynamic clamping head and quiet clamping head 460, the dynamic clamping head and quiet clamping head 460 is installed in
In the sliding cavity 434 and support between one end set on the activity ring body 420 and the closed end of the fixed ring body 430.Bullet
Optional property return unit 460 is spring, elastic rubber column, elastic foam etc., and specific in the present embodiment, dynamic clamping head and quiet clamping head 460 is adopted
Use spring.The effect that spring is arranged has two o'clock, one is after hanging ring 400 and conducting wire are mounted or be detached from, by spring
Elastic force activity ring body 420 can be made to automatically reset and close disengaging notch 432, promoted installation reliability with it is secondary easy-to-use
Property；Secondly being the effect by spring force, it can ensure that activity ring body 420 is firmly pushed against with fixed ring body 430, effectively prevent leading
Line is deviate from out of hanging ring 400.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of power transmission line fitting crimp quality detection device characterized by comprising
Controller；
Aircraft, the aircraft and the controller are electrically connected；
Detection components, the detection components include that mounting rack and interval opposite be set on the mounting rack and cooperatively form
The ray emitter and ray receiver of sense channel；And
Hanging ring, the hanging ring are set on the mounting rack and are detachably connected with the aircraft, are used for the inspection
Component is surveyed to be fixed temporarily on the transmission line.
2. power transmission line fitting crimp quality detection device according to claim 1, which is characterized in that further include flying with described
Row device is detachably connected and detachably hooks with the transmission line of electricity the anti-fall hook of cooperation, and the aircraft includes the first operation
Arm and the second motion arm, first motion arm and the anti-fall hook connects, second motion arm are connect with the hanging ring.
3. power transmission line fitting crimp quality detection device according to claim 2, which is characterized in that described anti-including two
Pendant hook and two hanging rings, two anti-fall hooks and two hanging rings are arranged at intervals at the installation mounting rack
Above and cooperation is detachably hooked with the transmission line of electricity.
4. power transmission line fitting crimp quality detection device according to claim 2, which is characterized in that the hanging ring includes
Pulling rope, activity ring body and the fixation ring body equipped with disengaging notch, one end of the fixed ring body offers installing port, the other end
Closing, and the fixed ring body extends along a length thereof direction and is also provided with the sliding cavity being connected to the installing port, the activity
Ring body be slidably set in the sliding cavity and with disengaging notch cooperation able to turn on or off, one end of the pulling rope with it is described
The connection of activity ring body, the other end are connect with second motion arm.
5. power transmission line fitting crimp quality detection device according to claim 4, which is characterized in that first motion arm
Free end be lower than the free end of second motion arm in a longitudinal direction.
6. power transmission line fitting crimp quality detection device according to claim 4, which is characterized in that the hanging ring also wraps
Limit card convex is included, the side wall of the fixed ring body offers the guide groove being connected to the sliding cavity, the limit card convex and institute
State activity ring body connect and be slidably arranged in the guide groove, the one end of the pulling rope far from second motion arm with
The limit card convex connection.
7. power transmission line fitting crimp quality detection device according to claim 6, which is characterized in that the hanging ring also wraps
Include anti-drop end cover, the anti-drop end cover be fixedly arranged on the fixed ring body offer the installing port one end and with the limit
Card convex limit cooperation.
8. power transmission line fitting crimp quality detection device according to claim 7, which is characterized in that further include elastic reset
Part, the dynamic clamping head and quiet clamping head are installed in the sliding cavity and support one end set on the activity ring body and the fixed ring body
Closed end between.
9. power transmission line fitting crimp quality detection device according to any one of claims 1 to 8, which is characterized in that also wrap
Image capture part is included, described image intake part is set on the aircraft and communicates to connect with the controller.
10. power transmission line fitting crimp quality detection device according to any one of claims 1 to 8, which is characterized in that also wrap
Image analysis showed device is included, described image is analysis shows that device is communicated to connect with the controller, the ray receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707473.3A CN108988199B (en) | 2018-07-02 | 2018-07-02 | Power transmission line hardware crimping quality detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810707473.3A CN108988199B (en) | 2018-07-02 | 2018-07-02 | Power transmission line hardware crimping quality detection device |
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| Publication Number | Publication Date |
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| CN108988199A true CN108988199A (en) | 2018-12-11 |
| CN108988199B CN108988199B (en) | 2020-08-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810707473.3A Active CN108988199B (en) | 2018-07-02 | 2018-07-02 | Power transmission line hardware crimping quality detection device |
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| CN112051282A (en) * | 2020-08-18 | 2020-12-08 | 国网山东省电力公司临沂供电公司 | Electrified X-ray flaw detection device and method for splicing sleeve of overhead transmission line |
| CN115839962A (en) * | 2023-02-23 | 2023-03-24 | 国网山西省电力公司电力科学研究院 | Crimping hardware fitting detection system and method based on unmanned aerial vehicle control |
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| CN112051282B (en) * | 2020-08-18 | 2023-11-28 | 国网山东省电力公司临沂供电公司 | Electrified X-ray flaw detection device and method for splicing sleeve of overhead transmission line |
| CN115839962A (en) * | 2023-02-23 | 2023-03-24 | 国网山西省电力公司电力科学研究院 | Crimping hardware fitting detection system and method based on unmanned aerial vehicle control |
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| CN108988199B (en) | 2020-08-14 |
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Effective date of registration: 20200917 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |