CN106352799A - Measuring instrument for power transmission line tower - Google Patents
Measuring instrument for power transmission line tower Download PDFInfo
- Publication number
- CN106352799A CN106352799A CN201610655902.8A CN201610655902A CN106352799A CN 106352799 A CN106352799 A CN 106352799A CN 201610655902 A CN201610655902 A CN 201610655902A CN 106352799 A CN106352799 A CN 106352799A
- Authority
- CN
- China
- Prior art keywords
- transmission line
- power transmission
- laser
- bearing base
- target object
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/206—Drawing of charts or graphs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a measuring instrument for a power transmission line tower, and belongs to the field of electric power equipment. The measuring instrument comprises an equipment bearing base, a stepping motor is arranged on the equipment bearing base, a laser transmitter is fixed to the edge of the equipment bearing base, and a laser receiving sensor, a camera and a processing circuit are further arranged on the equipment bearing base. When the stepping motor rotates, the camera acquires the video of light spots formed by laser irradiating to a target object and acquires frame images of the light spots in the video, the distance between the power transmission line tower and an ambient target object is determined according to the distance between the power transmission line tower and the target object and angular speed, an ambient environment distance diagram taking the power transmission line tower as a center is drawn according to the distance, the influence of sunlight on the distance can be effectively avoided, and laser ranging accuracy is improved.
Description
Technical field
The invention belongs to field of electrical equipment, particularly to the measuring instrument for power transmission line column.
Background technology
Now, in electric power electric system, in order to ensure the reliability of Research Work of Power Transmission Line, it usually needs to transmission line of electricity
Maked an inspection tour.
Because the fast-growth of trees in electric transmission line channel corridor can affect the safe operation of circuit, particularly vegetation cyclopentadienyl
Electric discharge flashover that the south of the lower reaches of the Yangtze River of close weather warm, the arboreal growth of in line corridor or both sides and foreign body intrusion cause, ground connection
The accident quantity of short circuit is in rising trend.So, during the daily tour of power department it is often necessary to monitoring trees,
Building etc. interferes the distance between object and transmission line of electricity to measure.
In the prior art, it is and to be done to transmission line of electricity using the survey tool based on principles such as laser or microwaves mostly
Relate to the distance between object to measure, but on sunny daytime, strong daylight can produce shadow to the result of laser ranging
Ring.
Content of the invention
In order to solve shortcoming and defect present in prior art, the invention provides being used for improving laser measurement under sunlight
The measuring instrument of accuracy.
In order to reach above-mentioned technical purpose, the invention provides for the measuring instrument of power transmission line column, described measuring instrument bag
Include the equipment bearing base being provided with supply module, be provided with rotating shaft in the center of equipment bearing base, during rotating shaft is provided with
Heart gear, is provided with motor on equipment bearing base, is provided with and is engaged with central gear on the output shaft of motor
Travelling gear;
It is fixed with generating laser at the edge of equipment bearing base, equipment bearing base is additionally provided with and Laser emission
The laser pick-off sensor of device electrical connection;Equipment bearing base is further fixed on be irradiated to target object for gathering laser
The photographic head of the hot spot being formed, and the place electrically connecting with generating laser, laser pick-off sensor, photographic head, motor
Reason circuit;
It is provided with the fixing handgrip for being fixed on power transmission line column edge in equipment bearing base bottom, in fixing handgrip
Middle part is provided with ball-shaped cloud platform, is provided with the level indicator sensor electrically connecting with process circuit on ball-shaped cloud platform.
Optionally, described equipment bearing base is additionally provided with for power taking on transmission line of electricity and supplies to process circuit
The power-supply circuit of electricity.
Optionally, described supply module includes lithium battery power supply, and the drive circuit electrically connecting with lithium cells.
Optionally, it is provided with optical filter in described photographic head.
Optionally, ball-shaped cloud platform is adjusted so that equipment bearing base is in default angle, from level indicator sensing
Device obtains the angle value of current device bearing base and horizontal plane;
Process circuit sends enabled instruction to generating laser so that generating laser launches laser, order to target object
Laser pick-off sensor obtains the laser from target object reflection, obtains and starts to the time receiving reflection laser from transmitting
Difference, determines the distance of power transmission line column and target object in conjunction with the light velocity;
While generating laser is to target object transmitting laser, process circuit sends rotation instruction to motor,
Motor is rotated according to the angular velocity data comprising in rotation instruction;
While motor rotates, process circuit obtains laser at photographic head and is irradiated to formation on target object
The video of hot spot, obtains the two field picture of hot spot in video, true with the distance of target object and angular velocity in conjunction with power transmission line column
Determine the distance value of power transmission line column and surrounding objects object;
According to surrounding centered on power transmission line column for the distance value drafting apart from schematic diagram.
Optionally, obtain the two field picture of hot spot in video, fast with the distance of target object and angle in conjunction with power transmission line column
Degree determines the distance value around power transmission line column, comprising:
Press default time interval and extract the two field picture containing hot spot from video;
Extract the pixel value of each pixel in two field picture, determine the luminance weighted meansigma methodss of two field picture, root according to pixel value
According to luminance weighted meansigma methodss, binary conversion treatment is carried out to two field picture, get the binaryzation two field picture after process;
Obtain the time tag of binaryzation two field picture, redefine power transmission line column and target object under this time tag
Distance, and the accumulative anglec of rotation of motor, based on the distance redefining and rotational angle, obtain in rotary course, defeated
The distance of the circuit tower target object of a week.
The technical scheme that the present invention provides has the benefit that
By, while motor rotates, photographic head obtains laser and is irradiated to regarding of the hot spot formed on target object
Frequently, and obtain the two field picture of hot spot in video, determine transmission of electricity in conjunction with power transmission line column with the distance of target object and angular velocity
Circuit tower and the distance value of surrounding objects object, show according to the surrounding distance that distance value is drawn centered on power transmission line column
It is intended to, can effectively avoid daylight to adjust the distance the impact of value, improve the accuracy of laser ranging.
Brief description
In order to be illustrated more clearly that technical scheme, the accompanying drawing of required use in embodiment being described below
Be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the measuring instrument provided by the present invention for power transmission line column;
Fig. 2 is the schematic flow sheet one of the measuring instrument using method provided by the present invention for power transmission line column;
Fig. 3 is the schematic flow sheet two of the measuring instrument using method provided by the present invention for power transmission line column.
Specific embodiment
Structure and advantage for making the present invention are clearer, below in conjunction with accompanying drawing, the structure of the present invention are made further
Description.
Embodiment one
The invention provides for the measuring instrument of power transmission line column, as shown in figure 1, described measuring instrument includes being provided with power supply
The equipment bearing base 2 of module 1, is provided with rotating shaft 21 in the center of equipment bearing base 2, is provided with central gear in rotating shaft 21
22, motor 23 is provided with equipment bearing base 2, the output shaft of motor 23 is provided with and nibbles with central gear 22
The travelling gear 24 closing;
It is fixed with generating laser 3 at the edge of equipment bearing base 2, equipment bearing base 2 is additionally provided with and laser
The laser pick-off sensor 4 of emitter 3 electrical connection;Equipment bearing base 2 is further fixed on be irradiated to mesh for gathering laser
The photographic head 5 of the hot spot being formed on mark object, and electric with generating laser 3, laser pick-off sensor 4, photographic head 5, stepping
The process circuit 6 of machine 23 electrical connection;
It is provided with the fixing handgrip 25 for being fixed on power transmission line column edge in equipment bearing base 2 bottom, grab in fixation
The middle part of handss 25 is provided with ball-shaped cloud platform 26, is provided with the level indicator sensor 27 electrically connecting with process circuit 6 on ball-shaped cloud platform 26.
In force, after process circuit 6 sends rotation instruction to motor 23, the output shaft of motor 23 drives
Travelling gear 24 rotates, so that equipment bearing base 2 is in stepping electricity under the engagement with central gear 22 for the travelling gear 24
Rotate under the drive of machine 23, thus making the generating laser 3 being fixed on equipment bearing base 2, laser pick-off sensor 4, taking the photograph
As the carrying out that a 5 grade equipment can be synchronous rotates.
In addition, enabling equipment bearing base 2 firm by being arranged on the fixing handgrip 25 of equipment bearing base 2 bottom
Be fixed on power transmission line column edge.Equipment bearing base 2 can be made to realize the tune of luffing angle by ball-shaped cloud platform 26 simultaneously
Save and realize to lock, in addition, in order to the accurate luffing angle obtaining current device bearing base 2, in ball-shaped cloud platform
It is additionally provided with level indicator sensor 27, for transmitting current luffing angle to process circuit 6 in the way of the signal of telecommunication on 26.
Based on foregoing description, the specifically used method that this is used for the measuring instrument of power transmission line column is as follows, flow chart such as Fig. 2 institute
Show.
101st, ball-shaped cloud platform is adjusted so that equipment bearing base is in default angle, from level indicator sensor
Obtain the angle value of current device bearing base and horizontal plane.
102nd, process circuit sends enabled instruction to generating laser so that generating laser swashs to target object transmitting
Light, makes laser pick-off sensor obtain laser from target object reflection, obtains and starts to receiving reflection laser from transmitting
Time difference, determines the distance of power transmission line column and target object in conjunction with the light velocity.
103rd, while generating laser is to target object transmitting laser, process circuit sends rotation to motor and refers to
Order is so that motor is rotated according to the angular velocity data comprising in rotation instruction.
104th, while motor rotates, process circuit obtains laser at photographic head and is irradiated to shape on target object
The video of the hot spot becoming, obtains the two field picture of hot spot in video, fast with the distance of target object and angle in conjunction with power transmission line column
Degree determines the distance value of power transmission line column and surrounding objects object.
105th, surrounding centered on power transmission line column is drawn apart from schematic diagram according to distance value.
In force, after equipment bearing base 2 rotates a circle under the drive of motor 23, according to the frame figure selected
Picture, determines the distance of target object and power transmission line column in every width two field picture, thus being drawn according to multiple distances with transmission line of electricity
Surrounding centered on tower is apart from schematic diagram.
Here why first choose two field picture, determine that this moment connects according to laser further according to the corresponding time tag of two field picture
Receive the distance between target object and power transmission line column of sensor 4 determination, be that other cross high light in order to prevent such as sunlight etc.
The impact to laser pick-off sensor 4 for the line.If in two field picture hot spot substantially it is meant that now laser pick-off sensor 4 receive
The impact of other light is less, and the distance value now determining is more accurate.
Optionally, in step 104, obtain the two field picture of hot spot in video, in conjunction with power transmission line column and target object away from
From and angular velocity determine distance value around power transmission line column, as shown in Figure 3, comprising:
201st, press default time interval from video and extract the two field picture containing hot spot.
202nd, extract the pixel value of each pixel in two field picture, the luminance weighted average of two field picture is determined according to pixel value
Value, according to luminance weighted meansigma methodss, carries out binary conversion treatment to two field picture, gets the binaryzation two field picture after process.
203rd, obtain the time tag of binaryzation two field picture, redefine power transmission line column and object under this time tag
The distance of body, and the accumulative anglec of rotation of motor, based on the distance redefining and rotational angle, obtain rotary course
In, the distance of the power delivery circuit tower target object of a week.
In force, why set luminance weighted meansigma methodss in step 202., be because in real life in order to anti-
Only too strong sunlight produces interference to laser pick-off sensor 4, when therefore extracting the pixel value in two field picture, to bright close to laser
The pixel value of degree mates higher weighted value, mates relatively low weighted value to the pixel value away from laser brightness, thus preventing light
The erroneous judgement of speckle, and then judgement of adjusting the distance produces impact.
Optionally, described supply module includes lithium battery power supply, and the drive circuit electrically connecting with lithium cells.?
The power-supply circuit being additionally provided with for power taking on transmission line of electricity on described equipment bearing base and powering to process circuit.
In force, in order to improve the job stability of this measuring instrument, except being provided with power supply on equipment bearing base 2
Outside module 1, the power-supply circuit that is additionally provided with for power taking on transmission line of electricity and powers to process circuit, so can be in condition
Preferentially power taking from transmission line of electricity during permission, by the electricity of lithium battery in supply module 1 cannot power taking from transmission line of electricity when
Use.
Optionally, it is provided with optical filter in described photographic head.
In force, in order to get relatively sharp hot spot at step 104, reduce sunlight or other high lights to hot spot
The impact of shape, is provided with optical filter in photographic head 5.
The invention provides for the measuring instrument of power transmission line column, including being provided with equipment bearing base, carrying in equipment
Pedestal is provided with motor;It is fixed with generating laser at the edge of equipment bearing base, connect in equipment bearing base laser
Receive sensor, photographic head, process circuit.By, while motor rotates, photographic head obtains laser and is irradiated to object
The video of the hot spot being formed on body, and obtain the two field picture of hot spot in video, in conjunction with the distance of power transmission line column and target object,
And angular velocity determines the distance value of power transmission line column and surrounding objects object, according to distance value drafting with power transmission line column being
The surrounding of the heart apart from schematic diagram, can effectively avoid daylight to adjust the distance the impact of value, improve the accurate of laser ranging
Property.
Each sequence number in above-described embodiment is for illustration only, the elder generation during not representing the assembling of each part or using
Order afterwards.
The foregoing is only embodiments of the invention, not in order to limit the present invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (6)
1. it is used for the measuring instrument of power transmission line column it is characterised in that the equipment that described measuring instrument includes being provided with supply module holds
Carry pedestal, be provided with rotating shaft in the center of equipment bearing base, central gear is provided with rotating shaft, upper in equipment bearing base
It is provided with motor, the travelling gear being engaged with central gear is provided with the output shaft of motor;
It is fixed with generating laser at the edge of equipment bearing base, equipment bearing base is additionally provided with and generating laser electricity
The laser pick-off sensor connecting;Equipment bearing base is further fixed on be irradiated to formation on target object for gathering laser
Hot spot photographic head, and electrically connect with generating laser, laser pick-off sensor, photographic head, motor process electricity
Road;
It is provided with the fixing handgrip for being fixed on power transmission line column edge in equipment bearing base bottom, at the middle part of fixing handgrip
It is provided with ball-shaped cloud platform, the level indicator sensor being electrically connected with process circuit is provided with ball-shaped cloud platform.
2. the measuring instrument for power transmission line column according to claim 1 is it is characterised in that in described equipment bearing base
On the power-supply circuit that is additionally provided with for power taking on transmission line of electricity and powers to process circuit.
3. the measuring instrument for power transmission line column according to claim 1 is it is characterised in that described supply module includes lithium
Battery supply, and the drive circuit electrically connecting with lithium cells.
4. the measuring instrument for power transmission line column according to claim 1 is it is characterised in that be provided with described photographic head
Optical filter.
5. the measuring instrument for power transmission line column according to any one of Claims 1-4 it is characterised in that:
Ball-shaped cloud platform is adjusted so that equipment bearing base is in default angle, obtains from level indicator sensor current
Equipment bearing base and the angle value of horizontal plane;
Process circuit sends enabled instruction to generating laser so that generating laser launches laser to target object, makes laser
Receive sensor and obtain the laser reflecting from target object, obtain and start to the time difference receiving reflection laser, knot from transmitting
Closing light speed determines the distance of power transmission line column and target object;
Generating laser to target object transmitting laser while, process circuit to motor send rotation instruction so that
Motor is rotated according to the angular velocity data comprising in rotation instruction;
While motor rotates, process circuit obtains laser at photographic head and is irradiated to the hot spot formed on target object
Video, obtain the two field picture of hot spot in video, the distance in conjunction with power transmission line column and target object and angular velocity determine defeated
Electric line tower and the distance value of surrounding objects object;
According to surrounding centered on power transmission line column for the distance value drafting apart from schematic diagram.
6. the measuring instrument for power transmission line column according to claim 5 is it is characterised in that obtain the frame of hot spot in video
Image, the distance in conjunction with power transmission line column and target object and angular velocity determine the distance value around power transmission line column, bag
Include:
Press default time interval and extract the two field picture containing hot spot from video;
Extract the pixel value of each pixel in two field picture, determine the luminance weighted meansigma methodss of two field picture according to pixel value, according to bright
Degree weighted mean, carries out binary conversion treatment to two field picture, gets the binaryzation two field picture after process;
Obtain the time tag of binaryzation two field picture, redefine power transmission line column and target object under this time tag away from
From, and the accumulative anglec of rotation of motor, based on the distance redefining and rotational angle, obtain in rotary course, transmission of electricity
The distance of the circuit tower target object of a week.
Priority Applications (1)
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CN201610655902.8A CN106352799A (en) | 2016-08-10 | 2016-08-10 | Measuring instrument for power transmission line tower |
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CN201610655902.8A CN106352799A (en) | 2016-08-10 | 2016-08-10 | Measuring instrument for power transmission line tower |
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CN201610655902.8A Pending CN106352799A (en) | 2016-08-10 | 2016-08-10 | Measuring instrument for power transmission line tower |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109467009A (en) * | 2018-12-30 | 2019-03-15 | 上海昂丰矿机科技有限公司 | A kind of crane displaying device |
CN109470174A (en) * | 2018-08-16 | 2019-03-15 | 国网浙江桐乡市供电有限公司 | It is a kind of for controlling the device and its application method of Cable Bending Radius |
CN109708616A (en) * | 2018-12-31 | 2019-05-03 | 甘文泉 | A kind of communication iron tower inclination on-line monitoring and forecasting system and method |
CN111689392A (en) * | 2020-05-18 | 2020-09-22 | 国网河北省电力有限公司晋州市供电分公司 | Intelligent force-bearing tool for power transmission line |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5684531A (en) * | 1995-04-10 | 1997-11-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Ranging apparatus and method implementing stereo vision system |
CN102636788A (en) * | 2012-05-03 | 2012-08-15 | 山东卡尔电气股份有限公司 | Ranging method and system for tracking laser point |
CN103557796A (en) * | 2013-11-19 | 2014-02-05 | 天津工业大学 | Three-dimensional locating system and locating method based on laser ranging and computer vision |
CN103940357A (en) * | 2014-03-26 | 2014-07-23 | 北京卓越经纬测控技术有限公司 | Non-contact spatial displacement measurement device |
CN104501720A (en) * | 2014-12-24 | 2015-04-08 | 河海大学常州校区 | Non-contact object size and distance image measuring instrument |
CN105068082A (en) * | 2015-08-19 | 2015-11-18 | 胡小波 | Laser radar scanning detection method and device |
-
2016
- 2016-08-10 CN CN201610655902.8A patent/CN106352799A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5684531A (en) * | 1995-04-10 | 1997-11-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Ranging apparatus and method implementing stereo vision system |
CN102636788A (en) * | 2012-05-03 | 2012-08-15 | 山东卡尔电气股份有限公司 | Ranging method and system for tracking laser point |
CN103557796A (en) * | 2013-11-19 | 2014-02-05 | 天津工业大学 | Three-dimensional locating system and locating method based on laser ranging and computer vision |
CN103940357A (en) * | 2014-03-26 | 2014-07-23 | 北京卓越经纬测控技术有限公司 | Non-contact spatial displacement measurement device |
CN104501720A (en) * | 2014-12-24 | 2015-04-08 | 河海大学常州校区 | Non-contact object size and distance image measuring instrument |
CN105068082A (en) * | 2015-08-19 | 2015-11-18 | 胡小波 | Laser radar scanning detection method and device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109470174A (en) * | 2018-08-16 | 2019-03-15 | 国网浙江桐乡市供电有限公司 | It is a kind of for controlling the device and its application method of Cable Bending Radius |
CN109467009A (en) * | 2018-12-30 | 2019-03-15 | 上海昂丰矿机科技有限公司 | A kind of crane displaying device |
CN109708616A (en) * | 2018-12-31 | 2019-05-03 | 甘文泉 | A kind of communication iron tower inclination on-line monitoring and forecasting system and method |
CN111689392A (en) * | 2020-05-18 | 2020-09-22 | 国网河北省电力有限公司晋州市供电分公司 | Intelligent force-bearing tool for power transmission line |
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