CN105547458A - Single-mass vibration fuzzy image acquisition and vibration parameter visual measurement experiment platform - Google Patents
Single-mass vibration fuzzy image acquisition and vibration parameter visual measurement experiment platform Download PDFInfo
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- CN105547458A CN105547458A CN201610000566.3A CN201610000566A CN105547458A CN 105547458 A CN105547458 A CN 105547458A CN 201610000566 A CN201610000566 A CN 201610000566A CN 105547458 A CN105547458 A CN 105547458A
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- vibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a single-mass vibration fuzzy image acquisition and vibration parameter visual measurement experiment platform. The platform comprises a single-mass vibrator and a camera. The single-mass vibrator is connected with a vibrator exciter, the vibration exciter is controlled through a frequency converter, the vibration exciter drives the single-mass vibrator to vibrate, the single-mass vibrator is connected with the camera, and an independently fixed visual scaling board is arranged below the lens of the camera. According to the invention, the single-mass vibrator vibrates under the effect of the vibration exciter, a binocular stereo camera connected with a timbre vibrator vibrates together, and fuzzy images during vibration can be acquired through the lens of the vibrating camera. The experiment platform provides an experiment means for realizing acquisition of the vibration fuzzy images and image restoration. Research data under different vibration conditions can be obtained by changing the frequency and amplitude of the vibration conveniently through the frequency converter. An ideal experiment means is provided for analysis of degradation causes of the vibration fuzzy images, restoration of the vibration fuzzy images and vision-based vibration parameter measurement.
Description
Technical field
The present invention relates to vibrational image harvester, specifically a kind of elemental body vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch.
Background technology
Visual identity, measuring technique application are more and more extensive, but due to the interference of vibration factor, often cause the image of collection to produce blooming, bring difficulty to the further application of image.
At present, domestic that still lack research vibrational image phenomenon, controlled experiment porch, the generation of a kind of collection of invention vibration blurred picture, vibration amplitude and frequency are controlled, and vibrating mass can be utilized to carry out the vibration parameter measuring device of view-based access control model, have larger using value.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of elemental body and vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch, can produce and gather vibration blurred picture, and the vibration amplitude of vibration and frequency controlled, the vibration parameters controlled basis of vibration utilizing vibrating mass carry out view-based access control model is measured and research.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of elemental body vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch, comprises simple substance vibrating mass, video camera; Described simple substance vibrating mass is connected with vibrator, and vibrator is by Frequency Converter Control, and vibrator drives the vibration of simple substance vibrating mass, and simple substance vibrating mass connects video camera, is provided with independent fixing vision calibration plate below the camera lens of video camera.
Adopt the present invention of technique scheme, compared with prior art, its beneficial effect is:
When the present invention works, simple substance vibrating mass vibrates under vibrator effect, and the binocular solid camera be connected with tonequality vibrating mass together vibrates, the camera lens of the video camera of vibration thus blurred picture when can collect vibration.This experiment porch be realize the vibration collection of blurred picture, image restoration provides laboratory facilities; And frequency, the amplitude of vibration can be changed easily by frequency converter, to obtain the data under different Vibration Condition; For analyze vibration blurred picture causes for Degradation, vibration blurred picture is restored and the vibration parameters measurement of view-based access control model provides desirable laboratory facilities.
As preferably, the present invention further technical scheme is:
Described simple substance vibrating mass is provided with plastid, lower plastid, and upper plastid is connected by shock-absorbing spring with lower plastid; Vibrator and upper plastid are connected and fixed.By plastid under the upper plastid of shock-absorbing spring connection, and vibrator is arranged on upper plastid, effectively can maintains the vibration of plastid, so that the blurred picture under cameras capture vibration.
Described upper plastid is provided with shooting support, and shooting support is provided with perpendicular support, lateral frame, and perpendicular support is connected to one end of upper plastid by base, and perpendicular support is flexibly connected with one end of lateral frame, and the end of lateral frame connects video camera.
Bracket setting, in one end of upper plastid, is convenient to be fixedly connected with video camera at this end, and is arranged vision calibration plate at this end, below camera lens vision calibration plate being arranged on video camera; Shooting support is provided with perpendicular support, lateral frame, and perpendicular support is flexibly connected with one end of lateral frame, can regulate the height of lateral frame easily, to regulate the image pickup scope of video camera.
Described vibrator is provided with two shock electric machines, is electrically connected after two shock electric machine parallel connections with frequency converter.
Vibrator adopts two shock electric machines as power source, the driving of vibrator adopts variable-frequency control technique, realize the stepless time adjustment to shock electric machine, and then the different vibration amplitude of plastid and vibration frequency can be obtained easily, and then obtain the image of different fog-level, the amplitude of vibration and frequency can be studied easily on the impact of image.
Two described shock electric machines be arranged in parallel and turn to contrary.
Two shock electric machine synchronous rotaries, but turn to contrary, to ensure the lateral stability of shaking platform.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is shock electric machine Frequency Converter Control schematic diagram;
Description of reference numerals: plastid under 1-; 2-shock-absorbing spring; The upper plastid of 3-; 4-vibrator; 5-frequency converter; 6-makes a video recording support; 7-vision calibration plate; 8-video camera.
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
See Fig. 1, Fig. 2, a kind of elemental body vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch, is made up of simple substance vibrating mass, video camera 8; Described simple substance vibrating mass is connected with vibrator 4, and vibrator 4 is controlled by frequency converter 5, and vibrator 4 drives simple substance vibrating mass to vibrate, and simple substance vibrating mass connects video camera 8, is provided with independent fixing vision calibration plate 7 below the camera lens of video camera 8.
Described simple substance vibrating mass is provided with plastid 3, lower plastid 1, and upper plastid 3 is connected by shock-absorbing spring 2 with lower plastid 1; Vibrator 4 and upper plastid 3 are connected and fixed.Connect upper plastid 3 times plastids 1 by shock-absorbing spring 2, and vibrator 4 is arranged on upper plastid 3, effectively can maintain the vibration of plastid 3, so that video camera 8 catches the blurred picture under vibrating.
Described upper plastid 3 is provided with shooting support 6, and shooting support 6 is provided with perpendicular support, lateral frame, and perpendicular support is connected to one end of upper plastid 3 by base, and perpendicular support is flexibly connected with one end of lateral frame, and the end of lateral frame connects video camera 8.
Bracket setting, in one end of upper plastid 3, is convenient to be fixedly connected with video camera 8 at this end, and is arranged vision calibration plate 7 at this end, below camera lens vision calibration plate 7 being arranged on video camera 8; Shooting support 6 is provided with perpendicular support, lateral frame, and perpendicular support is flexibly connected with one end of lateral frame, can regulate the height of lateral frame easily, to regulate the image pickup scope of video camera 8.
Described vibrator 4 is provided with two shock electric machines, is electrically connected after two shock electric machine parallel connections with frequency converter 5.
Vibrator 4 adopts two shock electric machines as power source, the driving of vibrator 4 adopts variable-frequency control technique, realize the stepless time adjustment to shock electric machine, and then the different vibration amplitude of plastid 3 and vibration frequency can be obtained easily, and then obtain the image of different fog-level, the amplitude of vibration and frequency can be studied easily on the impact of image.
Two described shock electric machines be arranged in parallel and turn to contrary.
Two shock electric machine synchronous rotaries, but turn to contrary, to ensure the lateral stability of shaking platform.
During the present embodiment work, simple substance vibrating mass is vibration under vibrator 4 acts on, and the binocular solid camera be connected with tonequality vibrating mass together vibrates, the camera lens of the video camera 8 of vibration thus blurred picture when can collect vibration.This experiment porch be realize the vibration collection of blurred picture, image restoration provides laboratory facilities; And frequency, the amplitude of vibration can be changed easily by frequency converter 5, to obtain the data under different Vibration Condition; For analyze vibration blurred picture causes for Degradation, vibration blurred picture is restored and the vibration parameters measurement of view-based access control model provides desirable laboratory facilities.
The foregoing is only the specific embodiment of the present invention, but protection of the present invention is not limited thereto, any those skilled in the art the thinkable change that is equal to the technical program technical characteristic or substitute, be all encompassed within protection scope of the present invention.
Claims (5)
1. elemental body vibrates fuzzy image acquisition and a vibration parameters vision measurement experiment porch, comprises simple substance vibrating mass, video camera; It is characterized in that: described simple substance vibrating mass is connected with vibrator, vibrator is by Frequency Converter Control, and vibrator drives the vibration of simple substance vibrating mass, and simple substance vibrating mass connects video camera, is provided with independent fixing vision calibration plate below the camera lens of video camera.
2. elemental body according to claim 1 vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch, it is characterized in that: described simple substance vibrating mass is provided with plastid, lower plastid, and upper plastid is connected by shock-absorbing spring with lower plastid; Vibrator and upper plastid are connected and fixed.
3. elemental body according to claim 2 vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch, it is characterized in that: described upper plastid is provided with shooting support, shooting support is provided with perpendicular support, lateral frame, perpendicular support is connected to one end of upper plastid by base, perpendicular support is flexibly connected with one end of lateral frame, and the end of lateral frame connects video camera.
4. elemental body according to claim 1 vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch, it is characterized in that: described vibrator is provided with two shock electric machines, is electrically connected after two shock electric machine parallel connections with frequency converter.
5. elemental body according to claim 3 vibrates fuzzy image acquisition and vibration parameters vision measurement experiment porch, it is characterized in that: two described shock electric machines be arranged in parallel and turn to contrary.
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| CN201610000566.3A CN105547458A (en) | 2016-01-04 | 2016-01-04 | Single-mass vibration fuzzy image acquisition and vibration parameter visual measurement experiment platform |
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| CN107300413A (en) * | 2017-07-13 | 2017-10-27 | 天津大学 | Long-range low frequency vibration measurement method based on fringe projection |
| CN107764389A (en) * | 2017-09-08 | 2018-03-06 | 天津大学 | A kind of method of low speed video camera measurement higher-frequency vibration based on fringe projection method |
| CN109591154A (en) * | 2018-12-17 | 2019-04-09 | 东北大学 | A kind of multimachine motor synchronizing driving high quality precast concrete shaking platform |
| CN111121947A (en) * | 2019-12-18 | 2020-05-08 | 广电计量检测（沈阳）有限公司 | Object vibration measuring method |
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