CN202486274U - Automatic filtering device for ultraviolet detection - Google Patents
Automatic filtering device for ultraviolet detection Download PDFInfo
- Publication number
- CN202486274U CN202486274U CN2012200933221U CN201220093322U CN202486274U CN 202486274 U CN202486274 U CN 202486274U CN 2012200933221 U CN2012200933221 U CN 2012200933221U CN 201220093322 U CN201220093322 U CN 201220093322U CN 202486274 U CN202486274 U CN 202486274U
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- China
- Prior art keywords
- optical filter
- light filter
- filter roller
- ultraviolet
- roller
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Abstract
The utility model relates to an automatic filtering device for ultraviolet detection. The automatic filtering device for the ultraviolet detection comprises a light filter roller, an image collection device, a stepping motor and a single-chip microcontroller. A light filter roller groove is arranged on the light filter roller in each scope of 90 degrees, and a solar blind light filter and an ultraviolet cut-off filter are installed in the light filter roller groove in an alternative mode. A rotating shaft of the stepping motor and a center shaft of the light filter roller are fixed in a coaxial mode, and an output end of the single-chip microcomputer is connected with a control end of the stepping motor through a flat cable. A computer host machine is connected with the single-chip microcomputer through a communication cable, and a camera of the image collection device is directly opposite to the light filter roller groove in the direct front of the light filter roller groove. The automatic filtering device for the ultraviolet detection is used for detecting and positioning fault locations of high-voltage equipment, at the same time, provides dynamic switching modes of the light filter, thereby being strong in instantaneity and capable of being used for dynamic detection of corona discharge of mobile equipment.
Description
Technical field
The utility model belongs to power equipment detection technique field, the automatic filtering apparatus of particularly a kind of ultraviolet detection.
Background technology
The decline of apparatus insulated property inevitably appears in electric system high-tension apparatus long-time running work, has partial discharge phenomenon, thereby causes power attenuation or power failure, and its harm is huge.Therefore necessaryly efficiently the effluve fault is detected, ensure the stable operation of electric system.
The ultraviolet detection system can detect and locate the corona discharge of high voltage electric power equip ment accurately.Corona discharge gives off a large amount of ultraviolet rays, and we with the naked eye can't discern in the sun.Ultraviolet camera with special can collect the corona discharge image, and then merges the purpose that reaches the location corona point to ultraviolet image and visible light background.Used day blind ultraviolet monitoring technology of single channel corona discharge ultraviolet detection system is the domestic novel fault detection technique that grew up in recent years.Ultraviolet wavelength coverage is 200～400nm, visible wavelength range 400～700nm.Consider and also contain ultraviolet light in the sunshine; And the overlapping of part arranged with ultraviolet light that corona discharge is produced; Because the ozonosphere of the earth has absorbed the ultraviolet ray of a part of wavelength; In fact be radiated ground solar ultraviolet wavelength mostly more than 280nm, the range of wavelengths that is lower than 280nm is a solar blind.Select 240 when therefore ultraviolet imagery detects---the 280nm wave band, can avoid the interference of sunshine, reach the purpose of confirming corona position and intensity, better anti-jamming capability and monitoring sensitivity are arranged.
In addition; Have the binary channels detection technique both at home and abroad now; But single channel detection system fault location point is more accurate; Owing to be with a CCD shot detection, be the equal of same place different time node shot detection, this has just been avoided image registration and parallax correction etc. might cause the loaded down with trivial details processing of error.
Yet the used optical filter switching mode of existing single channel corona discharge ultraviolet detection system has only static the switching.The static switching is meant the visible light background image of gathering equipment to be detected earlier; The fixing Background of this image conduct, and then switch to the ultraviolet light path, gather the ultraviolet discharge image of equipment to be detected; Superpose both, cycle switching time of the method is longer again.
Summary of the invention
The purpose of the utility model provides the automatic filtering apparatus of a kind of ultraviolet detection, is used for detecting and high-tension apparatus trouble spot, location, proposes the dynamic switching mode of optical filter simultaneously, and real-time is very strong, can carry out the corona discharge detection of dynamic by mobile device.
The technical scheme of the utility model is:
The automatic filtering apparatus of a kind of ultraviolet detection; Comprise optical filter roller, image collecting device, stepper motor and single-chip microcomputer; Per 90 degree are provided with an optical filter roller groove on the described optical filter roller; Day blind optical filter alternately is installed in the optical filter roller groove with the ultraviolet cut-on optical filter, and the axis of the rotating shaft of stepper motor and optical filter roller is coaxial to be fixed, and the output terminal of single-chip microcomputer is with winding displacement connection Stepping Motor Control end; Host computer connects single-chip microcomputer through connection; The camera of image collecting device is over against the optical filter roller groove of 0 o'clock of optical filter roller direction, and described optical filter roller comprises the pedestal and a round roller of a Ω type, and the center of circle of the high spot of pedestal and the round roller center of circle are coupling.
When system begins to detect; Single-chip Controlling optical filter roller is pressed the single-chip microcomputer setting speed and is switched; The moment that the while image collecting device cooperates optical filter to move to the camera lens dead ahead is obtained background image and target ultraviolet image respectively; Be shown as the single frames fused images with being about to both fusions, reach the requirement of real-time demonstration.
The beneficial effect of the utility model is:
Therefore advantage compared with static switching imaging is that background and target image all are real-time, and image device allows a little shake when detecting, need not fixed equipment, so can be used as the hand-held detection that detects or make an inspection tour.
When whole detection system was worked, the single-chip microcomputer internal processes configured, and the optical filter switched system just begins automatic operation, need not human intervention.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the workflow diagram of the utility model;
Corresponding parts title in the accompanying drawing: 1-optical filter roller; The 2-image collecting device; The 3-stepper motor; The 4-single-chip microcomputer.
Embodiment
Below in conjunction with accompanying drawing and instance the present invention is done further description.
As shown in Figure 1; The automatic filtering apparatus of a kind of ultraviolet detection; Comprise optical filter roller, image collecting device, stepper motor and single-chip microcomputer, per 90 degree are provided with an optical filter roller groove on the described optical filter roller, and day blind optical filter and ultraviolet cut-on optical filter alternately are installed in the optical filter roller groove; The axis of the rotating shaft of stepper motor and optical filter roller is coaxial fixing; The output terminal of single-chip microcomputer connects the Stepping Motor Control end with winding displacement, and host computer connects single-chip microcomputer through connection, and the camera of image collecting device is over against the optical filter roller groove of 0 o'clock of optical filter roller direction; Described optical filter roller comprises the pedestal and a round roller of a Ω type, and the center of circle of the high spot of pedestal and the round roller center of circle are coupling.
As shown in Figure 2; When system began to detect, Single-chip Controlling optical filter roller was pressed the single-chip microcomputer setting speed and is switched, and set switch speed and satisfied the requirement that shows in real time; Requiring the demonstration speed of fused images is 30fps; If adopt 4 optical filtering rollers (the changeable two groups of optical filters that rotate a circle promptly generate 2 frame fused images), the optical filtering roller slewing rate when detecting so should be 30/2=15 revolutions per second.The moment that while image collecting device CCD cooperates optical filter to move to the camera lens dead ahead is obtained background image and target ultraviolet image respectively, is shown as the single frames fused images with being about to both fusions.Can show 30 frame pictures a second like this, reach the requirement of real-time demonstration.
When whole detection system was worked, the single-chip microcomputer internal processes configured, and the optical filter switched system just begins automatic operation.Need not human intervention.
Claims (2)
1. automatic filtering apparatus of ultraviolet detection; It is characterized in that: comprise optical filter roller, image collecting device, stepper motor and single-chip microcomputer; Per 90 degree are provided with an optical filter roller groove on the described optical filter roller; Day blind optical filter alternately is installed in the optical filter roller groove with the ultraviolet cut-on optical filter, and the axis of the rotating shaft of stepper motor and optical filter roller is coaxial to be fixed, and the output terminal of single-chip microcomputer is with winding displacement connection Stepping Motor Control end; Host computer connects single-chip microcomputer through connection, and the camera of image collecting device is over against the optical filter roller groove of 0 o'clock of optical filter roller direction.
2. the automatic filtering apparatus of a kind of ultraviolet detection according to claim 1 is characterized in that: described optical filter roller comprises the pedestal and a round roller of a Ω type, and the center of circle of the high spot of pedestal and the round roller center of circle are coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200933221U CN202486274U (en) | 2012-03-13 | 2012-03-13 | Automatic filtering device for ultraviolet detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200933221U CN202486274U (en) | 2012-03-13 | 2012-03-13 | Automatic filtering device for ultraviolet detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486274U true CN202486274U (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200933221U Expired - Fee Related CN202486274U (en) | 2012-03-13 | 2012-03-13 | Automatic filtering device for ultraviolet detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202486274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628918A (en) * | 2012-05-07 | 2012-08-08 | 上海理工大学 | Novel ultraviolet-detection automatic filtration system |
| CN105259565A (en) * | 2015-09-17 | 2016-01-20 | 中国工程物理研究院电子工程研究所 | Laser simulation system for semiconductor device radiation dose rate effect |
-
2012
- 2012-03-13 CN CN2012200933221U patent/CN202486274U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628918A (en) * | 2012-05-07 | 2012-08-08 | 上海理工大学 | Novel ultraviolet-detection automatic filtration system |
| CN105259565A (en) * | 2015-09-17 | 2016-01-20 | 中国工程物理研究院电子工程研究所 | Laser simulation system for semiconductor device radiation dose rate effect |
| CN105259565B (en) * | 2015-09-17 | 2018-01-26 | 中国工程物理研究院电子工程研究所 | A kind of semiconductor devices radiation dose rate effect laser simulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130313 |