CN206930739U - Device for detecting corona discharge based on supersonic sounding compensation number of photons - Google Patents
Device for detecting corona discharge based on supersonic sounding compensation number of photons Download PDFInfo
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- CN206930739U CN206930739U CN201720500739.8U CN201720500739U CN206930739U CN 206930739 U CN206930739 U CN 206930739U CN 201720500739 U CN201720500739 U CN 201720500739U CN 206930739 U CN206930739 U CN 206930739U
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Abstract
It the utility model is related to a kind of device for detecting corona discharge based on supersonic sounding compensation number of photons, head is equipped with ultrasonic distance measuring module, ultraviolet imager, CCD camera, the vertical controlled motor of installation in head, horizontal controlled motor, after CPU receives host computer command signal, output control signal gives horizontal controlled motor, vertical controlled motor drives the head to position objective body to be measured, CPU connects canonical parameter memory module respectively, control system, ultrasonic distance measuring module, ultraviolet imager, number of photons is detected using ultraviolet imager, distance between ultraviolet imager and target object surface is obtained using ultrasound measurement module, the equivalent distances formula that this distance substitutes into useful photon number be can obtain into equivalent number of photons.The device can prevent that producing more spaces interference because of distance increase enters detecting system, makes the number of photons under different distance have comparativity, effectively improves the accuracy of ultraviolet partial discharge detection number of photons, and structure arrangement is simple, has higher practical value.
Description
Technical field
The utility model is related to a kind of device of ultraviolet imagery detection corona discharge number of photons, will day total blindness's ultraviolet imagery
Instrument is combined with ultrasonic sensor modules, and equivalent place is carried out to number of photons obtained by the detection at the different distance of objective body to be measured
Reason, make its result equivalent under unified observed range.
Background technology
It is well known that the main reason for shelf depreciation is Electric Power Equipment Insulation aging, and insulator rises in transmission line of electricity
Support wire, prevent electric current from returning the effect on ground, therefore it is very necessary that it is detected effectively in real time.Shelf depreciation
Often with electric discharge phenomena such as corona, electric arcs, and corona generally entails electric pulse, ultrasonic wave, light (predominantly ultraviolet light), part
The generation of heating, thus corona detection can effectively failure judgement position and strength of discharge.
Blind type ultraviolet imagery detection technology with the advantages that its non-contact, strong antijamming capability, high positioning precision extensively should
In being detected for power system device corona discharge, wherein number of photons is to quantify the pass of strength of discharge in ultraviolet imagery detection technology
Bond parameter, and with instrument gain, detecting distance, current impulse change and change.In Practical Project, instrument gain and electric current
Pulse can be controlled in required value, but detecting distance can change because of position difference at corona discharge, as shown in figure 3, using purple
Outer imaging device carries out the imaging center point A and ultrasonic ranging central point B of discharge examination, test point and equipment to discharge equipment
Between distance be d1When to export testing result be a, and when detecting distance is d2When testing result be b (a ＜ b), this result in detection knot
Fruit does not possess comparability, and the specific number of photons threshold value of ultraviolet imagery detection will also be difficult to determine.Therefore, it is necessary to obtain quilt
The distance between measuring point and test point, and by number of photons it is equivalent arrive unified gauged distance under, eliminate distance factor to detection tie
The influence of fruit.
At present, blind type ultraviolet imager can directly obtain the number of photons of corona discharge, but still need to artificial measuring instrument and arrive
Distance at electric discharge does not possess real-time to carry out after discharge strength assessment；Simultaneously because lack objective module, it is difficult
Exempt to cause erroneous judgement to cause unnecessary loss because staff slips up, just there is an urgent need to one to possess real-time, structure for this
Simply, the detection mode of simple operation.
The content of the invention
The utility model is asked for the number of photons that current ultraviolet imager detects under different distance without comparability
Topic, it is proposed that a kind of corona detection device based on ultrasonic ranging compensation number of photons, ultraviolet imager can be straight in the device
Detection power equipment corona discharge number of photons is connect, the ultrasonic distance measuring module of transceiver can obtain observed range in real time, therefore
Power equipment corona discharge number of photons can be detected in time, and obtains the equivalent number of photons under gauged distance.Meanwhile ultrasonic wave
Range finder module also have under adverse circumstances (such as dust) adaptive faculty it is strong, it is simple in construction, be easy to combine with ultraviolet imager
Feature, can effectively solve existing ultraviolet imager number of photons comparativity and real-time monitoring problem.
To achieve the above object, the technical solution of the utility model is：A kind of electricity based on supersonic sounding compensation number of photons
Corona detection means, including horizontal controlled motor, vertical controlled motor, ultrasonic distance measuring module, ultraviolet imager, head,
CPU, wireless communication module, canonical parameter memory module, control system, the head top are respectively provided with ultrasonic ranging mould
Block, ultraviolet imager, CCD camera, the vertical controlled motor of the interior installation of the head, horizontal controlled motor, the head are arranged on
On firm banking；After CPU in the head receives host computer command signal, output control signal is given horizontal controlled motor, hung down
Straight controlled motor drives the head to position objective body to be measured, the CPU connect respectively canonical parameter memory module, control system,
Ultrasonic distance measuring module, ultraviolet imager, and by wireless communication module connect host computer, for by the standard observation of setting away from
From be stored in canonical parameter memory module, by ultraviolet imager detect number of photons, by ultrasound measurement module obtain it is ultraviolet into
As the distance between instrument and target object surface, and the equivalent distances formula that this distance is substituted into useful photon number obtains equivalent photon
Number.
The ultrasound measurement module is consistent with the setting direction of ultraviolet imager, and both are fitted in cradle head structure up and down
Head centre position, and fixed with cushion socket.
The ultrasonic distance measuring module passes through the number of photons of acquisition the range data of acquisition, ultraviolet imager respectively
CPU sends by control system combined standard observed range, number of photons is equivalent to standard observation distance to control system, CPU
Under, then the result is uploaded to by host computer by wireless communication module.
The equivalent distances formula is：gd0=gd1(d1/d0)1.222, wherein, d1For detecting distance, gd1For in distance d1Under
The number of photons detected, d0For the standard observation distance that number of photons is unified, gd0 is that testing result is equivalent under gauged distance d0
Number of photons.
The beneficial effects of the utility model are:
The utility model solves conventional electric power equipment detection electric discharge number of photons and does not possess comparativity under different distance
Problem.Test point is measured to range finder module distance using ultrasonic distance measuring module, and the distance is approximately equal to ultraviolet imager to inspection
The distance between measuring point, corrected under the observed range that modular system stores, can be had by control system with this measured value
Effect is equivalent under unified parameters by the number of photons under different measurement distances.Ageing and adaptability based on ultrasonic wave, the combination
Device number of photons compensation precision is high, practical.
Brief description of the drawings
Fig. 1 is the device for detecting corona discharge system block diagram that number of photons is compensated based on supersonic sounding；
Fig. 2 is the device for detecting corona discharge structural upright schematic diagram that number of photons is compensated based on supersonic sounding；
Fig. 3 is that ultraviolet imagery device carries out discharge examination schematic diagram to discharge equipment；
Fig. 4 is the device for detecting corona discharge embodiment three-dimensional structure diagram that number of photons is compensated based on supersonic sounding；
Fig. 5 is the device for detecting corona discharge specific workflow figure that number of photons is compensated based on supersonic sounding；
Fig. 6 is the ultraviolet imagery collection of illustrative plates of ultraviolet source.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of device for detecting corona discharge system based on supersonic sounding compensation number of photons, including ultrasonic wave
Range finder module 1, ultraviolet imager 2, control system, horizontal controlled motor, vertical controlled motor, CPU, wireless communication module, mark
Quasi- parameter memory module, host computer.
Such as Fig. 2, shown in 4, head 5 is respectively provided with ultrasonic distance measuring module 1, ultraviolet imager 2, CCD camera 3, dissipated above
Hot mouth 4, firm banking 6, vertical controlled motor 7, horizontal controlled motor 8.
As shown in figure 5, after the CPU in head 5 receives host computer command signal, output control signal gives horizontal controlled motor
8th, vertical controlled motor 7 is to drive head 5 to position objective body to be measured, and the standard observation distance of setting is stored in into canonical parameter
In module；Canonical parameter memory module, control system, ultrasonic distance measuring module 1 are connected with CPU respectively, and according to supersonic sounding
Module 1 measures measured point to the distance value of ultraviolet imager 2, and the number of photons that ultraviolet imager under different distance 2 detects is carried out
Equivalent process.
Ultrasonic distance measuring module 1, the position of ultraviolet imager location equipment partial discharge can be used, then using ultrasonic ranging
Ultrasonic wave is launched in device aligning equipment partial discharge position, the ultrasonic signal for receiving to return using ultrasonic wave receiving module, passes through survey
Amount ultrasonic wave time of return combination velocity of sound formula obtains detection range.The utility model selected module is single channel range finder module,
Detection mode can be entered after the effective instruction of main frame is received, after the response time as defined in wait, reuse function reading i.e.
Range data, the i.e. distance as ultraviolet imager at corona discharge can be obtained, is exported by data wire.
The number of photons that the range data of the acquisition of ultrasonic distance measuring module 1, ultraviolet imager 2 detect is sent by CPU respectively
To control system, the observed range of combined standard parameter memory module, equivalent arrive of number of photons is unified under observed range, then pass through
Result is uploaded to host computer by wireless communication module.
Ultrasonic distance measuring module 1, analyzed from model KS109, using single channel range finder module SK109, when receiving
Detection mode can be entered after the effective instruction of main frame, after the response time as defined in wait, reuse function reading read register
Value, can obtain range data, the i.e. distance as ultraviolet imager at corona discharge, then exported by data wire.Day total blindness
Ultraviolet imager 2, its model ZF-S2 type ultraviolet imagers, resolution ratio be 600 × 480, visual field (H × V) be 5 ° ×
3.75 °, minimum ultraviolet luminous sensitivity is 3 × 10-18watt/cm2, can carry out number of photons to the power equipment of corona discharge be present
Detection.It is fixed on as shown in Fig. 2 ultrasonic distance measuring module 1 is bonded with ultraviolet imager about 2 on head 5, between the two
Away from very little, and ultrasonic wave uses receiver-transmitter integrated module, so the distance that ultrasonic distance measuring module 1 measures at electric discharge is approximately equal to
Distance at ultraviolet imager to electric discharge.Both respectively join measurement distance and number of photons with mark the observed range knot of storage system
Close to send to control system to substitute into and sent again by wireless WIFI to host computer apart from equivalent formulation, equivalent number of photons.
In specific detection, to ensure the validity of institute's light-metering subnumber, by the utility model proposes based on ultrasound
Corona discharge ultraviolet imagery detection number of photons equipment gain away from compensation is arranged to 15%, by adjusting horizontal vertical motor control
Head causes objective body in the angular field of view of ultraviolet imager and ultrasonic sensor.Detection insulation sublist as shown in Figure 4
Face corona discharge phenomenon, because ultrasonic distance measuring module 1, ultraviolet imager are installed and spacing very little about 2, so as to ensure to discharge
Place and the distance d of range finder module1Distance d with arriving ultraviolet imager at electric discharge2It is identical, and distance parameter passes through ranging software
Function reading obtains from register.
Number of photons carries out synthesis acquisition by ultraviolet image and visible images by corresponding software in control system, such as schemes
6 show ultraviolet image synthesizes collection of illustrative plates with visible images, can obtain photon numbers at the electric discharge gathered under 15% gain and be
1500, distance is d between the target point and ultrasound measurement module that obtain in control system1=3m (actual range 2.93m), mark
The observed range of quasi- memory module is arranged to d0=6m.
Because under same strength of discharge, with the increase of distance, ultraviolet image hot spot is gradually reduced, corresponding number of photons
Reduce therewith, therefore, it is necessary to which to enter row distance to number of photons equivalent during actual measurement.The utility model employs power function amendment side
Method (bibliography：Wang Shenghui, Feng Hongen, rule side is into, the distance correction of corona discharge ultraviolet imagery detection number of photons, high voltage
Technology, 1 (41):194-201,2015), the equivalent formulation under different distance is：
gd0=gd1(d1/d0)1.222 (1)
Wherein, d1For detecting distance, gd1For in distance d1Under the number of photons that detects, d0Seen for the unified standard of number of photons
Ranging is from gd0 is equivalent number of photons of the testing result under gauged distance d0.Ultraviolet imager is in distance d1What=3m was obtained puts
Electric light subnumber gd1=1500, using formula (1) by the equivalent observation to 6m of number of photons observed result that ultraviolet imager obtains away from
From under, equivalent number of photons under gauged distance is 643, it is now equivalent after result there is comparability, Site Detection can be met
Need.
The utility model using ultrasonic distance measuring module compensation ultraviolet imager detection corona discharge number of photons, can effectively by
Number of photons is equivalent to be arrived under same observed range, testing result is had comparativity.The device combination ultrasonic measuring distance technology simultaneously
With EUV discharge detection technique, using acoustooptical phenomenon caused by shelf depreciation, to realizing online ranging and to non-contact, remote
Under the conditions of corona discharge strength assessment it is of great advantage.
Claims (4)
1. a kind of device for detecting corona discharge based on supersonic sounding compensation number of photons, including horizontal controlled motor (8), vertical control
Motor (7) processed, ultrasonic distance measuring module (1), ultraviolet imager (2), head (5), CPU, wireless communication module, canonical parameter are deposited
Store up module, control system, it is characterised in that：Head (5) top is respectively provided with ultrasonic distance measuring module (1), ultraviolet imagery
Instrument (2), CCD camera (3), the vertical controlled motor (7) of the interior installation of the head (5), horizontal controlled motor (8), the head (5)
On firm banking (6)；After CPU in the head (5) receives host computer command signal, output control signal is to level
Controlled motor (8), vertical controlled motor (7) drive head (5) to position objective body to be measured, and the CPU connects standard ginseng respectively
Number memory module, control system, ultrasonic distance measuring module (1), ultraviolet imager (2), and connected by wireless communication module
Position machine, for the standard observation distance of setting to be stored in into canonical parameter memory module, detects photon by ultraviolet imager (2)
Number, distance of the ultraviolet imager (2) between target object surface is obtained by ultrasound measurement module (1), and this distance is substituted into
The equivalent distances formula of useful photon number obtains equivalent number of photons.
2. the device for detecting corona discharge according to claim 1 based on supersonic sounding compensation number of photons, it is characterised in that：
The ultrasound measurement module（1）It is consistent with the setting direction of ultraviolet imager (2), and both are fitted in head (5) knot up and down
Structure head centre position, and fixed with cushion socket.
3. the device for detecting corona discharge according to claim 1 based on supersonic sounding compensation number of photons, it is characterised in that：
The ultrasonic distance measuring module (1) passes through the number of photons of acquisition the range data of acquisition, the ultraviolet imager (2) respectively
CPU sends by control system combined standard observed range, number of photons is equivalent to standard observation distance to control system, CPU
Under, then the number of photons of amendment is uploaded to by host computer by wireless communication module.
4. the device for detecting corona discharge according to claim 1 based on supersonic sounding compensation number of photons, it is characterised in that：
The equivalent distances formula is：gd 0 =gd 1 (d 1/d 0 ) 1.222, wherein, d1For detecting distance, gd1For in distance d1Under detect
Number of photons, d0For the standard observation distance that number of photons is unified, gd0 is equivalent number of photons of the testing result under gauged distance d0.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720500739.8U CN206930739U (en) | 2017-05-08 | 2017-05-08 | Device for detecting corona discharge based on supersonic sounding compensation number of photons |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720500739.8U CN206930739U (en) | 2017-05-08 | 2017-05-08 | Device for detecting corona discharge based on supersonic sounding compensation number of photons |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709460A (en) * | 2019-02-11 | 2019-05-03 | 成都福森元光电科技有限公司 | A kind of blind type ultraviolet imagery system Photoncounting methods |
| CN110244197A (en) * | 2019-04-22 | 2019-09-17 | 电子科技大学 | A kind of low-temperature plasma scalpel discharge stability detection device and detection method |
| CN110275098A (en) * | 2019-06-28 | 2019-09-24 | 杭州赫太克科技有限公司 | Ultraviolet imager |
| CN113917284A (en) * | 2021-10-11 | 2022-01-11 | 国网智能科技股份有限公司 | Visual positioning device and positioning method for discharge point of power distribution equipment |
-
2017
- 2017-05-08 CN CN201720500739.8U patent/CN206930739U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709460A (en) * | 2019-02-11 | 2019-05-03 | 成都福森元光电科技有限公司 | A kind of blind type ultraviolet imagery system Photoncounting methods |
| CN110244197A (en) * | 2019-04-22 | 2019-09-17 | 电子科技大学 | A kind of low-temperature plasma scalpel discharge stability detection device and detection method |
| CN110275098A (en) * | 2019-06-28 | 2019-09-24 | 杭州赫太克科技有限公司 | Ultraviolet imager |
| CN110275098B (en) * | 2019-06-28 | 2021-07-09 | 杭州赫太克科技有限公司 | Ultraviolet imager |
| CN113917284A (en) * | 2021-10-11 | 2022-01-11 | 国网智能科技股份有限公司 | Visual positioning device and positioning method for discharge point of power distribution equipment |
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