CN107015125A - It is a kind of based on infrared, Uv and visible light integrated detection method and device - Google Patents

It is a kind of based on infrared, Uv and visible light integrated detection method and device Download PDF

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Publication number
CN107015125A
CN107015125A CN201710064171.4A CN201710064171A CN107015125A CN 107015125 A CN107015125 A CN 107015125A CN 201710064171 A CN201710064171 A CN 201710064171A CN 107015125 A CN107015125 A CN 107015125A
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China
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signal
infrared
ultraviolet
instrument
discharge
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CN201710064171.4A
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潘瑾
高树国
陈志勇
刘宏亮
赵军
邢超
张建军
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
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Priority to CN201710064171.4A priority Critical patent/CN107015125A/en
Publication of CN107015125A publication Critical patent/CN107015125A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1209Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1218Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

The invention discloses a kind of based on infrared, Uv and visible light integrated detection method, including infrared signal and UV signal are gathered respectively, and described infrared signal and UV signal are handled respectively;Carry out integrating positioning according to the infrared signal after processing and UV signal, obtain fault diagnosis;Collection ultrasonic signal and vision signal, and handle respectively the ultrasonic signal and vision signal respectively;According to the ultrasonic signal and vision signal after processing, carry out ultrasound partial discharge processing and obtain fault alarm information;Fault diagnosis result and fault alarm result are sent to detection platform.Therefore, it is described can be handled in time based on infrared, Uv and visible light integrated detection method, the defect and potential safety hazard of early warning transmission line of electricity.

Description

It is a kind of based on infrared, Uv and visible light integrated detection method and device
Technical field
The present invention relates to technical field of electric power detection, particularly relate to a kind of based on infrared, Uv and visible light integration Detection method.
Background technology
After high-tension apparatus puts into operation, due to reasons such as rough surface inequality, filth, fault of construction, conductor loose contacts, Equipment field strength distribution can be caused uneven, the electric discharges such as corona, electric arc and fever phenomenon is caused.Equipment electric discharge hair caused by Insulation Problems The sizable electric energy of thermal losses, adjoint pulse electromagnetic wave disturbs radio and high frequency communications are normally run, and excite sky Chemistry is reacted, and the material of generation damages equipment organic insulation again, under the environment such as filth, icing, it is most likely that cause insulation Accident.Meanwhile, the generation of corona means that equipment may occur in that reduction phenomenon or defect in terms of insulation, and electric discharge is found in time With fever phenomenon and check that the electric discharge position of equipment and the strong and weak safe operation to system have important value.Therefore, locally put Electricity and power equipment temperature detection technology are increasingly paid attention to by electric power research mechanism, operation department.
At present, it can be produced when corona, arc discharge with electricity, light, heat, sound wave, compound etc..Believed using these features Number to electrical equipment carry out Partial Discharge Detection technology have observation, supercritical ultrasonics technology, infrared imaging method, flash spotting, insulating oil Red, orange, green, blue, yellow (ROGBY), ultraviolet image method etc..Wherein, infrared detection is that the power equipment of comparative maturity hinders the detection of heating for some reason Method, ultraviolet image method is a kind of emerging to recognize the technology of Electric Power Equipment Insulation state by detecting corona, arc discharge. But infrared imaging method is indirect measuring method, it is impossible to directly see electric discharge;The analysis that ultraviolet imagery technology can not be quantified The discharge scenario of equipment, it is impossible to accurate judgement is made to equipment deficiency, all with certain defective.
The content of the invention
In view of this, it is a kind of based on infrared, Uv and visible light integrated detection side it is an object of the invention to propose Method, can accurately judge the discharge position of high-tension apparatus, and the order of severity of quantitative analysis high-tension apparatus defect.
There is provided based on the above-mentioned purpose present invention and be based on infrared, Uv and visible light integrated detection method, including Including:
Collection infrared signal and UV signal, and handle respectively described infrared signal and UV signal respectively; Carry out integrating positioning according to the infrared signal after processing and UV signal, obtain fault diagnosis;
Collection ultrasonic signal and vision signal, and handle respectively the ultrasonic signal and vision signal respectively;Root According to the ultrasonic signal and vision signal after processing, carry out ultrasound partial discharge processing and obtain fault alarm information;
Fault diagnosis result and fault alarm result are sent to detection platform.
In some embodiments of the invention, the processing to UV signal uses calculating shooting image, draws graticle figure As ultraviolet channel center's point coordinates (XUV, YUV) and visible ray center point coordinate (XVIS, YVIS), the two, which subtracts each other, obtains coordinate difference It is worth (dx, dy);W, H, θ W, θ H are instrument parameter;Then, maximum superposition angular deviation d θ are calculated according to formula (1):
Wherein, d θ --- maximum superposition angular deviation;Dx --- horizontal direction grid deviation;Dy --- vertical direction coordinate Deviation;W --- horizontal pixel number;H --- longitudinal pixel count;θW--- horizontal direction field of view angle;θH--- vertical direction visual field Angle.
In some embodiments of the invention, it must be carried out for UV signal testing experiment in darkroom;Open day blind purple Outer monochromatic source, light source luminescent power W, and the photosurface diameter d of recording power meter are measured using power meter;In day blind ultraviolet list The spectroscope transmission direction of color light source places attenuating device;Day blind ultraviolet imager is opened, instrument gain is adjusted to maximum, The decay density of attenuating device is gradually reduced, until instrument can detect UV signal just, now decay density x is recorded OD, Sensitirity va1ue is calculated by formula:
Wherein, Emin--- ultraviolet light detection sensitivity;W --- light source luminescent power;The photosurface of d --- power meter is straight Footpath.
In some embodiments of the invention, day blind ultraviolet imager is used during ultraviolet imager discharge examination apart from office Widening plate 10m positions are imaged to tip position, regulation gain to maximum;Fixed electricity is injected to loop using impulse correction generator The pulse signal of lotus amount, pulse signal amplitude is obtained on shelf depreciation instrument oscillograph, so that it is bent to obtain Apparent discharge magnitude correction Line;Power turn-on, boosts to needle plate gap to test loop and obvious electric discharge occurs;Test voltage is gradually reduced, until day blind purple Outer imager can tell needle plate discharge signal, the discharge examination spirit of the Apparent discharge magnitude of record now, as instrument just Sensitivity.
In some embodiments of the invention, angular resolution of the measure day ultraviolet passage of blind ultraviolet imager in distance to a declared goal During with every image height line number, regulation resolution ratio target is with parallel light tube focal plane apart from x so that the imaging of resolution ratio target is blind away from day At d meters of ultraviolet imager, and record focal length f.Displacement x is calculated by formula;
Wherein, x --- displacement;F --- focal length;D --- the distance between ultraviolet imager resolution ratio target;
Then, day blind ultraviolet imager adjusts the increasing of day blind ultraviolet imager to the outgoing photoimaging of ultraviolet parallel light tube Benefit and focusing record the minimum spacing striped label M that can clearly differentiate to suitable gear;
Day blind ultraviolet imager angular resolution value and being calculated respectively by formula below per image height line number is obtained.Wherein, dx, dy Subtracted each other by the ultraviolet channel center's point coordinates (XUV, YUV) and visible ray center point coordinate (XVIS, YVIS) of graticle image Arrive, W, H, θ W, θ H are instrument parameter
Wherein, dx --- horizontal direction adjacent stripes center spacing;Dy --- vertically adjacent fringe center spacing; The number of pixels of W --- horizontal direction;The number of pixels of H --- vertical direction;θW--- the field of view angle of horizontal direction; θH--- the field of view angle of vertical direction;Rh--- horizontal direction is per image height line number;Rv--- vertical direction is per image height line number.
In some embodiments of the invention, space isolation and Fiber isolation are passed through during infrared measurement of temperature.
In some embodiments of the invention, vision signal carries out signal acquisition by camera.
In some embodiments of the invention, ultrasonic signal then needs to pass sequentially through ultrasonic sensor array, array signal Amplifying circuit and multi-channel data acquisition board are handled.
In some embodiments of the invention, according to the ultrasonic signal and vision signal after processing, single-point or multiple spot are carried out Fault alarm.
From the above it can be seen that the present invention provide based on infrared, Uv and visible light integrated detection method, The comprehensive detection device of ultraviolet, infrared three kinds of detection means of visible ray can be integrated, with reference to it is ultraviolet, infrared each into As the advantage of detection, the discharge position of high-tension apparatus, and the serious journey of quantitative analysis high-tension apparatus defect are both accurately judged Degree, by the detection to electrical equipment corona discharge intensity, the timely operating hidden danger of discovering device can prevent, reduce and set The standby generation broken down, while ensureing that testing staff is safe, reduces equipment power off time, improves power supply reliable Property, it is ensured that the stable safe operation of power network.
Brief description of the drawings
Fig. 1 be the embodiment of the present invention in based on infrared, Uv and visible light integrated detection method schematic diagram;
Fig. 2 is ultraviolet imager discharge examination sensitivity test circuit diagram in the embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference Accompanying drawing, the present invention is described in more detail.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention The entity of individual same names non-equal or the parameter of non-equal, it is seen that " first " " second " should not only for the convenience of statement The restriction to the embodiment of the present invention is interpreted as, subsequent embodiment no longer illustrates one by one to this.
As one embodiment, as shown in fig.1, in the embodiment of the present invention based on infrared, Uv and visible light one The schematic flow sheet of body detection method, it is described to be included based on infrared, Uv and visible light integrated detection method:
Step 101, collection infrared signal and UV signal, and enter respectively to described infrared signal and UV signal respectively Row processing.
In one preferably embodiment, the processing to UV signal can draw graticle using shooting image is calculated The ultraviolet channel center's point coordinates (XUV, YUV) of image and visible ray center point coordinate (XVIS, YVIS), the two, which subtracts each other, obtains coordinate Difference (dx, dy);W, H, θ W, θ H are instrument parameter.Then, maximum superposition angular deviation d θ are calculated according to formula (1).
Wherein, d θ --- maximum superposition angular deviation;Dx --- horizontal direction grid deviation;Dy --- vertical direction coordinate Deviation;W --- horizontal pixel number;H --- longitudinal pixel count;θW--- horizontal direction field of view angle;θH--- vertical direction visual field Angle.
In another preferably embodiment, infrared temperature measurement apparatus typically in outside work, variation of ambient temperature amplitude compared with On big, this requires detector to have good heat endurance.Detector is with can be away from equipment high-temperature region, installed in galvanic circle temperature Spend lower (typically can be below 80 DEG C), so as to reduce the resistant to elevated temperatures requirement of detector.At the same time heat endurance is selected Preferable component, and temperature-compensating is rationally set on analog signal channel, system is reached higher heat endurance.
In addition, infrared measurement of temperature realizes that high-tension apparatus is monitored on-line, first have to solve the problems, such as high_voltage isolation.In general, solve Certainly this problem has two approach:One is isolated by space, and another is by Fiber isolation.Space isolates, and signal can be by light Transmission or radio transmitting, carry out signal transmission using infrared light herein, and it, which has, isolates thorough, simple in construction, anti-interference Ability is strong, reliable operation the features such as.
Meanwhile, the high-tension switch cabinet of infrared measurement of temperature operates in high voltage, the state of high current, and systematic failures moment also occurs Strong electromagnetic transient, these all produce highfield, magnetic field and strong electromagnetic, and this is for microelectronics system and faint letter Number processing is very unfavorable.To eliminate these interference, while using soft and hardware interference protection measure, using numeral on Software for Design Coding, decoding technique, reject interference signal, and used software filtering technology;Metallic shield is used on hardware, is strengthened at different levels Filtering eliminates High-frequency Interference.Detector is in same current potential with temperature measuring point, reduces the influence of electric field.It is random dry to eliminate in addition Disturb, change relatively slow feature using contact temperature, test point signal is received repeatedly, multi collect, exclude abnormal data To ensure that data are reliable, by above aggregate measures, complete machine has preferable antijamming capability, and measurement data is reliable and stable.
Step 102, carry out integrating positioning according to the infrared signal after processing and UV signal, obtain fault diagnosis, then Carry out step 105.
In embodiment, it must be carried out for UV signal testing experiment in darkroom (illumination is less than 0.0001lx);Open Day blind ultraviolet monochromatic light source, light source luminescent power W, and the photosurface diameter d of recording power meter are measured using power meter;It is blind in day The spectroscope transmission direction of ultraviolet monochromatic light source places attenuating device (it is recommended that decay more than density 10OD);Open day it is blind it is ultraviolet into As instrument, instrument gain is adjusted to maximum, the decay density of attenuating device is gradually reduced, until instrument can be detected just UV signal, records the density x OD that now decay, and Sensitirity va1ue is calculated by formula:
Wherein, Emin--- ultraviolet light detection sensitivity;W --- light source luminescent power;The photosurface of d --- power meter is straight Footpath.
In addition, ultraviolet imager discharge examination sensitivity test loop is as shown in Fig. 2 wherein S --- needle plate discharging gap; R --- protective resistance;C1、C2--- capacitor;CK--- coupled capacitor device;Zm--- impedance unit;DPO --- shelf depreciation Tester.Day blind ultraviolet imager can be used to be imaged apart from partial discharge needle plate 10m positions to tip position in detection, regulation Gain is to maximum;The pulse signal of fixed charge amount is injected to loop using impulse correction generator, in shelf depreciation instrument oscillography Pulse signal amplitude is obtained on device, so as to obtain Apparent discharge magnitude calibration curve;Power turn-on, needle plate is boosted to test loop There is obvious electric discharge in gap;Test voltage is gradually reduced, until day blind ultraviolet imager can tell needle plate electric discharge letter just Number, the discharge examination sensitivity of the Apparent discharge magnitude, as instrument of record now.
Further, the day ultraviolet passage of blind ultraviolet imager is determined in the angular resolution and every image height line number of distance to a declared goal, can To adjust resolution ratio target with parallel light tube focal plane apart from x so that resolution ratio target is imaged blind ultraviolet imager d meters away from day Place, and record focal length f.Displacement x is calculated by formula;
Wherein, x --- displacement;F --- focal length;D --- the distance between ultraviolet imager resolution ratio target.
Then, day blind ultraviolet imager adjusts the increasing of day blind ultraviolet imager to the outgoing photoimaging of ultraviolet parallel light tube Benefit and focusing record the minimum spacing striped label M that can clearly differentiate to suitable gear.
Day blind ultraviolet imager angular resolution value and being calculated respectively by formula below per image height line number be obtained.Wherein, dx, Dy is subtracted each other by ultraviolet channel center's point coordinates (XUV, YUV) of graticle image with visible ray center point coordinate (XVIS, YVIS) Obtain, W, H, θ W, θ H are instrument parameter.
Wherein, dx --- horizontal direction adjacent stripes center spacing;Dy --- vertically adjacent fringe center spacing; The number of pixels of W --- horizontal direction;The number of pixels of H --- vertical direction;θW--- the field of view angle of horizontal direction; θH--- the field of view angle of vertical direction;Rh--- horizontal direction is per image height line number;Rv--- vertical direction is per image height line number.
Step 103, collection ultrasonic signal and vision signal, and carried out respectively to the ultrasonic signal and vision signal respectively Processing.
In preferably embodiment, vision signal carries out signal acquisition by camera.And ultrasonic signal then needs successively Handled by ultrasonic sensor array, array signal amplifying circuit and multi-channel data acquisition board.Wherein, array signal Amplifying circuit can amplify the ultrasonic signal after being handled by ultrasonic sensor array, and multi-channel data acquisition board will can then surpass The ultrasound partial discharge that sound filtering is sent in step 104 is handled.Preferably, the collection carried out to ultrasonic signal and vision signal Processing can be realized by ultrasonic signal acquisition mainboard.
Step 104, according to the ultrasonic signal and vision signal after processing, carry out ultrasound partial discharge processing and obtain fault alarm letter Breath, then carries out step 105.
In embodiment, according to the ultrasonic signal and vision signal after processing, the failure report of single-point or multiple spot can be carried out It is alert, and carry out step 105.It is preferred that ultrasound partial discharge visualization processing can be carried out.
Step 105, fault diagnosis result and fault alarm result are sent to detection platform.
Wherein, described detection platform can carry out fault detect based on ultrasonic wave, ultraviolet, infrared power distribution network synthesis.
View of the above, it will be seen that of the present invention based on infrared, Uv and visible light integrated detection side Method, creative realizes a three photosynthetic detections, and realization sentences failure with infrared, sentences failure with ultraviolet, it is seen that light-seeking is put;Also, The photoelectricity acquisition module of Ultraviolet Detector contains two passages, and one of passage is ultraviolet passage, and a passage is visible Optical channel.One photoelectricity acquisition module includes a ultraviolet camera and a visible image capturing head;Moreover, the present invention is by can Put depending on makeup and anticipation is carried out to the shelf depreciation position of equipment/circuit, then for the equipment of fault severity level/higher ranked Accurately analysis and diagnosis are carried out using comprehensive diagnosis module, so as to significantly improve the integrality and the accuracy of diagnosis of information; Meanwhile, it is whole described to be compact, easy to realize based on infrared, Uv and visible light integrated detection method.
Those of ordinary skills in the art should understand that:The discussion of any of the above embodiment is exemplary only, not It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples;Under the thinking of the present invention, above example Or can also not be combined between the technical characteristic in be the same as Example, step can be realized with random order, and be existed such as Many other changes of upper described different aspect of the invention, for simplicity, they are provided not in details.
In addition, to simplify explanation and discussing, and in order to obscure the invention, can in the accompanying drawing provided To show or can not show that the known power ground with integrated circuit (IC) chip and other parts is connected.Furthermore, it is possible to Device is shown in block diagram form, to avoid obscuring the invention, and this have also contemplated that following facts, i.e., on this The details of the embodiment of a little block diagram arrangements be depend highly on the platform that will implement the present invention (that is, these details should It is completely in the range of the understanding of those skilled in the art).Elaborating detail (for example, circuit) with describe the present invention In the case of exemplary embodiment, it will be apparent to those skilled in the art that can be in these no details In the case of or implement the present invention in the case that these details are changed.Therefore, these descriptions are considered as explanation It is property rather than restricted.
Although having been incorporated with specific embodiment of the invention, invention has been described, according to retouching above State, many replacements of these embodiments, modifications and variations will be apparent for those of ordinary skills.Example Such as, other memory architectures (for example, dynamic ram (DRAM)) can use discussed embodiment.
Embodiments of the invention be intended to fall within the broad range of appended claims it is all it is such replace, Modifications and variations.Therefore, within the spirit and principles of the invention, any omission, modification, equivalent substitution, the improvement made Deng should be included in the scope of the protection.

Claims (9)

1. it is a kind of based on infrared, Uv and visible light integrated detection method, it is characterised in that including:
Collection infrared signal and UV signal, and handle respectively described infrared signal and UV signal respectively;According to Infrared signal and UV signal after processing carry out integrating positioning, obtain fault diagnosis;
Collection ultrasonic signal and vision signal, and handle respectively the ultrasonic signal and vision signal respectively;According to place Ultrasonic signal and vision signal after reason, carry out ultrasound partial discharge processing and obtain fault alarm information;
Fault diagnosis result and fault alarm result are sent to detection platform.
2. according to the method described in claim 1, it is characterised in that the processing to UV signal uses calculating shooting image, obtains Go out the ultraviolet channel center's point coordinates (XUV, YUV) of graticle image and visible ray center point coordinate (XVIS, YVIS), the two subtracts each other Obtain coordinate difference (dx, dy);W, H, θ W, θ H are instrument parameter;Then, maximum superposition angular deviation d is calculated according to formula (1) θ:
Wherein, d θ --- maximum superposition angular deviation;Dx --- horizontal direction grid deviation;Dy --- vertical direction coordinate is inclined Difference;W --- horizontal pixel number;H --- longitudinal pixel count;θW--- horizontal direction field of view angle;θH--- the vertical direction angle of visual field Degree.
3. method according to claim 2, it is characterised in that must be carried out for UV signal testing experiment in darkroom; Day blind ultraviolet monochromatic light source is opened, light source luminescent power W, and the photosurface diameter d of recording power meter are measured using power meter; The spectroscope transmission direction of day blind ultraviolet monochromatic light source places attenuating device;Day blind ultraviolet imager is opened, instrument gain is adjusted Section is gradually reduced the decay density of attenuating device to maximum, until instrument can detect UV signal just, record is now Decay density xOD, and Sensitirity va1ue is calculated by formula:
Wherein, Emin--- ultraviolet light detection sensitivity;W --- light source luminescent power;The photosurface diameter of d --- power meter.
4. method according to claim 3, it is characterised in that day blind ultraviolet imagery is used during ultraviolet imager discharge examination Instrument is imaged apart from partial discharge needle plate 10m positions to tip position, regulation gain to maximum;Using impulse correction generator to loop The pulse signal of fixed charge amount is injected, pulse signal amplitude is obtained on shelf depreciation instrument oscillograph, is put so as to obtain apparent Electricity calibration curve;Power turn-on, boosts to needle plate gap to test loop and obvious electric discharge occurs;It is gradually reduced test voltage, Until day blind ultraviolet imager can tell needle plate discharge signal just, the Apparent discharge magnitude of record now, as instrument Discharge examination sensitivity.
5. method according to claim 4, it is characterised in that determine the day ultraviolet passage of blind ultraviolet imager in distance to a declared goal Angular resolution and during per image height line number, regulation resolution ratio target and parallel light tube focal plane apart from x so that resolution ratio target At blind ultraviolet imager d meters away from day of imaging, and record focal length f.Displacement x is calculated by formula;
Wherein, x --- displacement;F --- focal length;D --- the distance between ultraviolet imager resolution ratio target;
Then, day blind ultraviolet imager is to the outgoing photoimaging of ultraviolet parallel light tube, regulation day blind ultraviolet imager gain and Focusing records the minimum spacing striped label M that can clearly differentiate to suitable gear;
Day blind ultraviolet imager angular resolution value and being calculated respectively by formula below per image height line number is obtained.Wherein, dx, dy are by dividing The ultraviolet channel center's point coordinates (XUV, YUV) and visible ray center point coordinate (XVIS, YVIS) for drawing plate image, which are subtracted each other, to be obtained, W, H, θ W, θ H are instrument parameter
Wherein, dx --- horizontal direction adjacent stripes center spacing;Dy --- vertically adjacent fringe center spacing;W—— The number of pixels of horizontal direction;The number of pixels of H --- vertical direction;θW--- the field of view angle of horizontal direction;θH--- it is vertical The field of view angle in direction;Rh--- horizontal direction is per image height line number;Rv--- vertical direction is per image height line number.
6. according to the method described in claim 1, it is characterised in that pass through space isolation and Fiber isolation during infrared measurement of temperature.
7. according to the method described in claim 1, it is characterised in that vision signal carries out signal acquisition by camera.
8. according to the method described in claim 1, it is characterised in that ultrasonic signal then needs to pass sequentially through sonac battle array Row, array signal amplifying circuit and multi-channel data acquisition board are handled.
9. method according to claim 8, it is characterised in that according to the ultrasonic signal and vision signal after processing, is carried out The fault alarm of single-point or multiple spot.
CN201710064171.4A 2017-02-04 2017-02-04 It is a kind of based on infrared, Uv and visible light integrated detection method and device Pending CN107015125A (en)

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CN111141392A (en) * 2019-12-26 2020-05-12 深圳供电局有限公司 Multispectral monitoring device and multispectral monitoring method
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CN111428629A (en) * 2020-03-23 2020-07-17 深圳供电局有限公司 Substation operation monitoring method, state determination method and unmanned aerial vehicle inspection system
CN112285504A (en) * 2020-10-27 2021-01-29 华北电力大学 Multispectral solar-blind narrow-band ultraviolet imager and method for detecting different discharge states by using same
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CN117129809A (en) * 2023-08-30 2023-11-28 上海紫红光电技术有限公司 Power fault diagnosis method based on unmanned aerial vehicle-mounted multi-light imaging technology
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