CN208795816U - A kind of multispectral electric power detection device - Google Patents
A kind of multispectral electric power detection device Download PDFInfo
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Abstract
The utility model discloses a kind of multispectral electric power detection device, the supplemental functionality including electric power detection also includes visible light imaging band, ultraviolet light imaging channel and infrared imaging channel.Incident ray is divided into two-way by ultraviolet spectrometry mirror, visible light imaging band is entered by visible light camera lens all the way, in addition enter ultraviolet light imaging channel all the way, infrared image acquisition channel uses independent incident window, enters infrared imaging channel by germanite glass, infrared light camera lens.Visible light imaging band is the control centre of whole system, coordinate other imaging bands it is synchronous with the supplemental functionality and cooperation interaction, image co-registration module in visible light imaging band carries out Multi-spectral image fusion to the picture signal of three imaging bands, forms augmented reality electric device maintenance map.The utility model realizes the video fusion, display, storage and playback of three kinds of spectrum any combination such as ultraviolet, infrared and visible light, increases electric power detection efficiency.
Description
Technical field
The utility model belongs to the detection technique field of power system device, and in particular to a kind of multispectral electric power detection is set
It is standby.
Background technique
The principle of ultraviolet detection technology is that the ultraviolet radioactive for generating or reflecting using object itself detects simultaneously target
Processing.Ultraviolet radioactive in nature is greatly mostly from solar radiation, and ozone layer absorbs major part by the ultraviolet of atmosphere
Radiation, forms " day-old chick " substantially zeroed positioned at the solar radiation of 220nm-280nm wave band.High-tension apparatus electrical discharge,
Corona, flashover or electric arc can be generated according to the difference of electric field strength, during discharge, the electronics in air is constantly obtained and released
Exoergic amount, and ultraviolet light will be released when electronics releases energy and (discharges), here it is the image-forming principles of ultraviolet imagery technology.
Using nature ultraviolet day blind spectral coverage, is analyzed by electrical equipment ultraviolet imagery in target scene, can detecte out discharge scenario,
Here it is the principles of day blind EUV discharge detection.Limited to by technology and technique, ultraviolet imagery resolution ratio is very low, and is two-value
Change image, it is difficult to clearly express the details of observed object.
The principle of infrared detection technique be when being more than absolute zero using body surface temperature the electromagnetic wave that gives off to mesh
Mark is detected and is handled.With temperature change, the radiation intensity of electromagnetic wave is also changed correspondingly with wavelength diffusion properties, and wavelength is situated between
Electromagnetic wave between 0.75 μm to 1000 μm is known as " infrared ray ", and human vision visible " visible light " is arrived between 0.4 μm
0.75μm.In nature, all objects can infrared radiation.When power equipment or route damage, it will usually with part
Fever phenomenon, thermography are the equipment intuitive display methods of Warm status and its Temperature Distribution under operation.Measure target sheet
The infrared image of the available target scene of the infrared temperature difference between body and background, here it is the imaging of infrared imagery technique originals
Reason.The shortcomings that infrared imaging is that resolution ratio is lower, the natural visible light color for the target scene that is beyond expression.
In production with operation, power equipment is due to running operation, lifespan, usage frequency and uses ring for electric system
Border etc. influences, and cracking, galvanic corrosion can occur year by year, and then break down or accident.Using precognition, do not have a power failure preservation & testing and maintenance
Means realize abnormal sign from device external, assess its seriousness in advance, handled before not breaking down, reduce equipment
Heavy losses caused by breaking down have very big economic benefit.
Independent infrared detection equipment, UV detection devices are widely used in electric system O&M, to power transmission and transformation system
The heat radiation of the targets such as system, electric power factory equipment, corona are detected.Infrared detection technique, which has, penetrates smog, and subject goal compares
Clearly, can work double tides the features such as, but be easy the interference by sunlight, hot weather, the rainy day cannot usually detect.Ultraviolet spy
Survey technology is not limited by weather and sunlight, and detection speed is high-efficient fastly, high sensitivity, but often target can not be seen main body
Clearly, field angle is also small.Conventional infrared detection equipment schematic diagram is as shown in Figure 1.Conventional UV detection devices schematic diagram such as Fig. 2
It is shown.The shortcomings that current main-stream infrared detection equipment, is:
1, the only fever phenomenon that infrared system detects, and at this moment equipment or route may be badly damaged；
2, infrared system generally requires sub-cooled, low efficiency, at high cost, and infrared device is easily damaged；
3, the contrast of infrared image is lower, and edge is relatively fuzzyyer, can not embody natural colour in target scene；
4, visible images resolution ratio is lower and is unable to synchronous optical zoom, and scene details is not abundant enough；
5, the interference vulnerable to strong sunlight, hot weather, and the rainy day is not easy to detect.
It corresponds, the shortcomings that mainstream UV detection devices is:
1, ultraviolet imagery system field angle is small (level × vertical visual field are as follows: 6 degree × 4.5 degree), it is difficult to determine abort situation,
Detection efficiency is low, poor availability；
2, technology and technique limitation, ultraviolet imagery resolution ratio is very low, and is binary image, it is difficult to clearly express
The details of observed object；
3, UV detection devices can only record a video to the ultraviolet blending image video being added on visible light, can not be to purple
Outer and visible light is individually recorded a video, and additive fusion causes partial information to be lost.
4, hardware platform of the use site programmable gate array as image co-registration, power consumption is big, also implies that battery capacity
Greatly, stand-by time is short, further influences service personnel and carries and use for a long time；
5, error caused by structure processing and equipment are assembled, is easy to cause optical path to deviate, rear end lacks effective registration
The locational space of algorithm, fused image and actual scene has large error.
By the Searches of Patent Literature, it there is no combine infrared detection and ultraviolet detection to power equipment progress in the prior art
The disclosure of detection.
Utility model content
The utility model proposes a kind of portable, low-power consumption multispectral electric power detection device regarding to the issue above, can be with
In conjunction with three kinds of spectrum such as infrared imaging, ultraviolet imagery and visual light imaging technology, carried out using low-power consumption specific integrated circuit high
Image co-registration is imitated, the multi-source image of input is generated as to the fusion figure that a width contains more information resource after synthesis is handled
Picture avoids the limitation of single image information, so that the effective information of multi-source image integrates complementary, raising plant issue early warning
Accuracy, timeliness, be also more suitable for the subsequent observation and processing of computer or technical staff.Equipment will not only detect target hair
The infrared and UV signal penetrated, will also be accurately positioned target, blur-free imaging.Ultraviolet detection technology can be sent out in time earliest
Existing EUV discharge corona, infrared detection technique can pass through TEMPERATURE SPECTROSCOPY and find power equipment operating status, it is seen that light imaging can be with
Obtain clearly target device scene image and specific device specifics image.In addition, carrying out multispectral melt by highly effective algorithm
Image after conjunction forms augmented reality electric device maintenance map.
In order to achieve the above objectives, the utility model proposes technical solution be a kind of multispectral electric power detection device, including
The supplemental functionality of electric power detection includes also visible light imaging band, ultraviolet light imaging channel and infrared imaging channel, enters
It penetrates light and is divided into two-way by ultraviolet spectrometry mirror, visible light imaging band is entered by visible light camera lens all the way, in addition a-road-through
Cross ultraviolet filter, ultraviolet lens enters ultraviolet light imaging channel, infrared image acquisition channel use independent incident window,
Enter infrared imaging channel by germanite glass, infrared light camera lens, the visible light imaging band is in the control of whole system
The heart, coordinates that other imaging bands are synchronous with the supplemental functionality and cooperation interaction, in the visible light imaging band
Image co-registration module carries out Multi-spectral image fusion to the picture signal of three imaging bands, forms the inspection of augmented reality power equipment
Mapping spectrum.
Further, above-mentioned supplemental functionality includes video storage, audio input output, LCD is shown, WIFI is communicated, 4G
Communication, GPS position information acquisition, usb communication, laser designator, light compensating lamp, key, ultraviolet gain control, Temperature Humidity Sensor
Module.
Above-mentioned visual optical channel is HD video, preferably, frame per second is that 25 frames are per second or higher.
Above-mentioned ultraviolet imagery optical path includes that ultraviolet light narrow band filter and Weak ultraviolet signal enhancing amplify active device.
Infra-red radiation is converted into electric signal and is imaged by above-mentioned infrared light by Uncooled FPA.
The external interface of this equipment includes display screen, wireless communication, multifunction push key, audio-video storage, usb expansion mouth.
Compared with prior art, the utility model has the beneficial effects that:
1, the video that multispectral electric power detection device realizes three kinds of spectrum any combination such as ultraviolet, infrared and visible light melts
It closes, display, store and play back, increase electric power detection efficiency, enhance equipment image determination details.Existing Photoelectric Detection is set
It is standby only to support two kinds of spectral detections that fixed blending image code storage be saved the independent video flowing of different spectrum
Osd information stream, partial information is blocked by OSD when video playback, and some visible light image detail is by infrared or ultraviolet figure
As interference, can not remove to support complete independent analysis.
2, multispectral electric power detection device is small in size, stand-by time is long, scalability is strong, mainly advanced due to use
The proprietary integrated circuit of technique, integrated level is high, performance is high, low in energy consumption, to be easy to develop maintenance, peripheral interface abundant, at low cost, schemes
As processing is based on bottom hardware realization, Energy Efficiency Ratio height.Existing electric power detection device mostly uses field programmable gate array to realize greatly,
Power consumption is big, easy exploiting maintenance, Energy Efficiency Ratio be not low, at high cost.
3, multispectral electric power detection device refers to touch operation using high definition resolution ratio, 1000 candela high brightness, support more
LCD liquid crystal display, good visual effect.Existing other electric power detection devices mostly use greatly SD, brightness less than 500 candelas, no
It supports the LCD display of touch operation, execute-in-place not to see, show that content is few, color rendition degree is low, influences electric power detection people
Member is to unit exception identification effect and effect.
4, multispectral electric power detection device joined the communications such as WIFI, 4G, GPS and Beidou and positioning function, facilitate electric power
Operation maintenance personnel scene uses, and can also plan as a whole real time remote wireless prison by system management platform with the multiple detection devices of distributing installation
Control multiple electric power places.The multispectral electric power detection device being mounted in electric inspection process robot, may be implemented all weather operations,
Automation manipulation, overall management, remote upgrade maintenance.
5, the independent video flowing in three tunnels and osd data of separate storage, convenient for being run using historical data and same category of device
Data be observed power equipment infrared temperature image and ultraviolet photon quantity compares and analyzes, realize intelligent equipment operation
State-detection.
Detailed description of the invention
Fig. 1 is conventional infrared detection equipment schematic diagram.
Fig. 2 is conventional UV detection devices schematic diagram.
Fig. 3 is the multispectral electric power detection device system diagram of the utility model.
Fig. 4 is the process flow diagram of multispectral electric power detection data.
Fig. 5 is the external interface figure of multispectral electric power detection device.
Specific embodiment
Specific embodiment of the present utility model is further described now in conjunction with attached drawing.
The utility model device has infrared, Uv and visible light imaging totally three channels, and wherein visible channel is high
Clear video, frame per second are that 25 frames are per second or higher, are needed the data volume real-time video transmission in three channels to low-power consumption first
In the memory that specific integrated circuit is connected, it is convenient for real-time, efficient image co-registration and signal processing.It is aobvious in order to meet equipment
Show real-time, multisource video synchronization, the requirement of image signal process, need in 40 milliseconds, completes three channel high definitions views
Frequently data transmission, image procossing, video fusion and the display of each frame image.Structure machining accuracy, equipment assemble bring
Error, leading to three imaging bands, there are optical path offsets.Need before image co-registration to the heterologous image co-registration image of high frame frequency into
The models such as affine transformation, projective transformation, perspective transform, rigid body translation are often used in row registration, image registration.
Ultraviolet imagery optical path generally comprises ultraviolet light narrow band filter and Weak ultraviolet signal enhancing amplification active device, and
Active device sensitivity with higher and amplification factor, there are random, the non-linear dark electronic noises that self-excitation generates for itself.It makes an uproar
Sound is embodied in, even if single ultraviolet imagery system is in no detection target, picture can also introduce in irregular shape, position
Uncertain a small amount of interference signal influences that display effect is imaged.In the ISP (image signal process of low-power consumption specific integrated circuit
Unit) in, the image filtering Processing Algorithm of effective operation, such as recursive noise reduction and morphological erosion expansion, intermediate value in time domain
Filtering etc., can significantly improve the detection effect to power equipment disease.
The utility model uses the specific integrated circuit of advanced technologies processing procedure, and power consumption is extremely low, integrated level is high, processing delay
Short, the multispectral electric power detection device developed is small in size, the battery-powered operation time is long, both can be with portable use, can also be with
It is mounted on electric power detection crusing robot and uses.
Ultraviolet detection technology shows the number of photons of different number to different strength of discharges, and infrared detection technique is to different heat
Different colors is presented in radiation regimes, then visual light imaging is cooperated to complete multi-source image fusion, effectively utilizes and integrates them
Characteristic information, enhance understanding and description to scene, convenient for the generation and disease of detection power equipment disease promptly and accurately
Degree detected, measured, early warning.
Intelligent multispectral electric power detection device is mounted on electric power detection crusing robot, using historical data and together
Class operating status device data be observed power equipment infrared temperature image and ultraviolet photon quantity compares and analyzes, can be with
Intelligent anticipation equipment running status promptly and accurately, extremely passes through target wireless network and uploads alarm signal automatically, realizes
Efficiently, in real time, accurately electric system O&M monitors.
For the system diagram of the utility model as shown in figure 3, incident ray is divided into two-way by ultraviolet spectrometry mirror, passing through all the way can
Light-exposed camera lens enters visual light imaging channel, in addition enters ultraviolet light imaging by ultraviolet filter, ultraviolet lens all the way and leads to
Road.Infrared image acquisition channel uses independent incident window, and it is logical to enter infrared imaging by germanite glass, infrared light camera lens
Road.Visual light imaging channel is the control centre of whole system, coordinate other imaging bands, video storage, audio input output,
LCD is shown, WIFI is communicated, 4G is communicated, GPS position information obtains, usb communication, laser designator, light compensating lamp, key, ultraviolet increasing
The normal work of each modules such as beneficial control, Temperature Humidity Sensor.Because each channel uses super low-power consumption specific integrated circuit, encapsulation
Small in size, low in energy consumption, the multiple video layers fusions of support.The integrated specialized image pre-processor Peripheral Interface of front height is abundant,
The multispectral detection device designed is easy to carry, stand-by time is long, video is clear, scalability is strong.
The flow chart of data processing of the utility model is as shown in figure 4, include the channels such as ultraviolet light, infrared light and visible light.It is purple
After imaging sensor imaging, the image digital signal processor integrated by IC interior is exposed and focuses outer tunnel
Processing, and export light video data flow.Space filtering processing is carried out followed by gray level image, to eliminate isolated make an uproar
Sound point.The gray level image after airspace filter is subjected to binary conversion treatment according to the pixel Distribution value of the neighborhood block of pixel, it can be with
Further decrease the handling capacity of subsequent image processing operand and data transmission.Image after binaryzation is carried out at morphology
Reason keeps ultraviolet detection target more prominent by first corroding the modes such as reflation.Ultraviolet data are being sent to image co-registration
Before module, in order to meet the high real-time requirements of fusion video storage and display, need to encode initial data, transmit,
Decoded operation.
Infra-red radiation is converted into electric signal and is imaged by infrared light by Uncooled FPA.Focal plane output
Analog video signal needs first to carry out analog-to-digital conversion, two-dimensional infrared digital image information is generated, next again by the dedicated of rear end
Integrated circuit carries out the image procossings such as nonuniformity correction, luminance proportion, color mapping, noise reduction to digital signal.What is handled is red
Outer image, equally again by coding, transmission, decoding and image co-registration, the high real-time for meeting the storage of fusion video and display is wanted
It asks.
After visible channel is using the cmos imaging of the big target surface high sensitivity of extremely low illumination, integrated by IC interior
Image digital signal processor carries out 3A (automatic white balance, automatic exposure, auto-focusing), Penetrating Fog enhancing processing, and exports original
The video data stream of the high frame per second of beginning high-resolution.Visual light imaging high resolution, object edge clean mark, anti-interference ability
By force, optical zoom range is big, color rendition degree is high, visual field scope is big, and the channel is same in multispectral electric power detection device
It is extremely important.The visible images of high bandwidth are sent directly into image co-registration module, no transmission delay.It is ultraviolet light video flowing, infrared
Light video flowing and visible light video stream, simultaneous transmission to image co-registration module realize registration and the fusion of multi-source image.Ultraviolet
Location feature point in image, then corresponding point is found in infrared image and visible images, by the way of affine transformation, lead to
Crossing zooming and panning is completely coincident three points, to achieve the purpose that registration.Ultraviolet, infrared and visible light after registration
Image keeps on spatial position being overlapped, can satisfy the requirement of pixel-level image fusion.
The module upper layer of fusion runs linux operating system, and bottom specific integrated circuit supports three different displays preferential
Grade, the video display layer with Alpha transparent attribute, three video flowings are respectively placed in individual video display layer.Often
A video display layer is alternately refreshed using double buffering, effectively avoids splashette problem.
In ultraviolet light video display layer, assigns the position for not having feature pixel to complete Alpha transparent attribute, hide
The image of the position, the position that will be provided with feature pixel assign suitable Alpha transparent attribute, show the ultraviolet figure of the position
Picture, and reduce the influence to other video display layer images.In infrared video display layer, according to the demand of user, Ke Yixuan
The transparent strategy of Alpha as ultraviolet light video display layer is selected, also can choose whole translucent mode, increases information fusion
And effect of visualization.In visible light video display layer, usually set minimum for display priority, Alpha transparent attribute can be with
It is set as completely closing.
Fused composite video stream needs to increase suitable OSD text information, such as time, ultraviolet light subnumber, exception
Target prompting, GPS position information, company LOGO, temperature and humidity value etc., enhancing numeralization effect of visualization.Local LCD display is made
OSD text information can be increased and decreased according to the needs of testing staff, prevent multispectral electric power detection device from using
The video of Cheng Zhong, the part display area LCD are blocked by OSD text information.It is big to merge the video data volume, needs elder generation before storing
High performance video compress is carried out, by ultraviolet light video flowing, infrared video stream, visible light video stream, audio when compression stores
Stream and osd information, are demarcated and are associated with by timestamp information.Later period, can be according to testing staff's in video playback
It needs, flexibly autonomous selection plays the video flowing and OSD text information of any combination.
The external interface figure of the utility model is as shown in figure 5, interface is very rich, comprising display screen, wireless communication, more function
Energy key, audio-video storage, usb expansion mouth etc., can meet the use demand of electric system O&M monitoring field very well.In order to
LCD display that is highlighted using high definition, supporting mostly finger touch operation is locally displayed in the usage experience for increasing testing staff.WIFI,
The real-time video at 4G network support remote viewing device end receives target abnormal alarm, can also carry out remote upgrade to equipment
Maintenance.GPS can be used for the current location of recording equipment.Micro HDMI interface can be convenient for more people simultaneously with external big display
Observation playback video.Optical sensor can be used to automatically adjust screen display brightness.Temperature Humidity Sensor can provide system school
Quasi- parameter simultaneously improves target acquisition precision.Ultraviolet gain adjustment function can change the ultraviolet spy of image intensifier inside ultraviolet lens
Survey sensitivity.White indicating Light can be used for the illumination under dark surrounds.Laser designator is positioned for distant object.Loudspeaker
The acquisition of playing alert tones and live sound is used for MIC.Power management can be closed adaptively currently without the module used
To energy conservation, while the module to work normally provides multivoltage stabilized power supply, guarantees that whole system is stable, reliably works.
It should be noted that above-described embodiment provided by the utility model only has schematically, does not have and limit this reality
With the effect of the range of novel specific implementation.The protection scope of the utility model should include those common skills for this field
For art personnel obviously transformation or alternative solution.
Claims (6)
1. a kind of multispectral electric power detection device, the supplemental functionality including electric power detection, it is characterised in that include visible light
Imaging band, ultraviolet light imaging channel and infrared imaging channel, incident ray are divided into two-way, a-road-through by ultraviolet spectrometry mirror
Cross visible light camera lens and enter visible light imaging band, in addition all the way by ultraviolet filter, ultraviolet lens enter ultraviolet light at
As channel, infrared image acquisition channel uses independent incident window, enters infrared imaging by germanite glass, infrared light camera lens
Channel, the visible light imaging band are the control centres of whole system, coordinate other imaging bands and the miscellaneous function mould
The synchronization of block is interacted with cooperation, image of the image co-registration module in the visible light imaging band to three imaging bands
Signal carries out Multi-spectral image fusion, forms augmented reality electric device maintenance map.
2. multispectral electric power detection device according to claim 1, it is characterised in that the supplemental functionality includes view
Frequency storage, audio input output, LCD is shown, WIFI is communicated, 4G is communicated, GPS position information obtains, usb communication, laser designation
Device, light compensating lamp, key, ultraviolet gain control, temperature humidity sensor module.
3. multispectral electric power detection device according to claim 1, it is characterised in that the visible light imaging band is real
When high resolution video image, frame per second be 25 frames it is per second or higher.
4. multispectral electric power detection device according to claim 1, it is characterised in that the ultraviolet light imaging channel includes
Ultraviolet light narrow band filter and Weak ultraviolet signal enhancing amplify active device.
5. multispectral electric power detection device according to claim 1, it is characterised in that the infrared light passes through non-brake method coke
Infra-red radiation is converted into electric signal and is imaged by planar array.
6. multispectral electric power detection device according to claim 1, it is characterised in that the external interface of this equipment includes aobvious
Display screen, wireless communication, multifunction push key, audio-video storage, usb expansion mouth.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888027A (en) * | 2019-12-03 | 2020-03-17 | 深圳供电局有限公司 | Sensor for detecting discharge of ring main unit |
| CN111273134A (en) * | 2020-01-21 | 2020-06-12 | 北方夜视技术股份有限公司 | Ultraviolet and short wave infrared band fused corona monitoring device |
| CN111879414A (en) * | 2020-08-04 | 2020-11-03 | 银河水滴科技（北京）有限公司 | Infrared temperature measurement method and device, computer equipment and medium |
| CN111932817A (en) * | 2020-08-03 | 2020-11-13 | 上海理工大学 | Fire detection early warning system and method |
| CN116051497A (en) * | 2023-01-04 | 2023-05-02 | 杭州启泰信息科技有限公司 | Intelligent analysis method for power transmission and transformation images of power grid based on data processing |
-
2018
- 2018-08-15 CN CN201821320521.5U patent/CN208795816U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888027A (en) * | 2019-12-03 | 2020-03-17 | 深圳供电局有限公司 | Sensor for detecting discharge of ring main unit |
| CN111273134A (en) * | 2020-01-21 | 2020-06-12 | 北方夜视技术股份有限公司 | Ultraviolet and short wave infrared band fused corona monitoring device |
| CN111932817A (en) * | 2020-08-03 | 2020-11-13 | 上海理工大学 | Fire detection early warning system and method |
| CN111879414A (en) * | 2020-08-04 | 2020-11-03 | 银河水滴科技（北京）有限公司 | Infrared temperature measurement method and device, computer equipment and medium |
| CN116051497A (en) * | 2023-01-04 | 2023-05-02 | 杭州启泰信息科技有限公司 | Intelligent analysis method for power transmission and transformation images of power grid based on data processing |
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