CN203219583U - Novel machine vision light source control system - Google Patents
Novel machine vision light source control system Download PDFInfo
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- CN203219583U CN203219583U CN 201320229266 CN201320229266U CN203219583U CN 203219583 U CN203219583 U CN 203219583U CN 201320229266 CN201320229266 CN 201320229266 CN 201320229266 U CN201320229266 U CN 201320229266U CN 203219583 U CN203219583 U CN 203219583U
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- photoelectric sensor
- light source
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Abstract
The utility model, which belongs to the industrial automation detection and control field, relates to a novel machine vision light source control system. According to the system, a dark room covers the outside of the whole system except a PC host and is used for ensuring stability of a spectrum of a measuring point. A main controller controls an LED light source by an LED power supply controller connected with the main controller; and an output terminal of the main controller is respectively connected with an illumination intensity detection device, an infrared photoelectric sensor and an industrial camera and is connected with the PC host by a serial port. The infrared photoelectric sensor is arranged at a side surface of a conveyor belt; an infrared emitting diode and photodiode main shaft is parallel to a conveyor belt plane and is perpendicular to a motion direction of a to-be-measured object; and the infrared photoelectric sensor is used for triggering interruption of the main controller when the to-be-measured object passed through the infrared photoelectric sensor. According to the utility model, because of reasonable control of the machine vision light source system, the quality of an image collected by the industrial camera is improved, a working life of an illuminating device is prolonged, energy consumption is reduced, and the whole work efficiency of the machine vision system is enhanced.
Description
Technical field
The utility model relates to a kind of novel machine vision light-source control system, belongs to industrial automation detection and control field.
Background technology
Along with the continuous development of social economy, technology, the quality of product and price greatly influence the benefit of enterprise, how to produce high-quality product, simultaneously can guaranteed price cheap relatively, be the most important thing of enterprise development.The proposition of machine vision concept and be applied as the variation that world industry development brings matter.Machine vision refers to that will be ingested target by industrial camera (CMOS or CCD) converts picture signal to, sends special-purpose image processing and analyzing system to; System carries out the feature that various computings come extracting objects to these images, and then controls on-the-spot equipment action according to discrimination result.The application of machine vision can improve the degree of industrial automation, the quality that improves product, reduction cost of labor greatly, is the only selection of production and processing type enterprise industrial upgrading.In the machine vision applications process, illumination purposes is that the key character of measured object is manifested, and suppresses unwanted feature.
The LED light-emitting diode is a kind of semiconductor of the photoluminescence of switching on, can produce the light of the very narrow spectrum of approximate monochromatic light, its luminosity is relevant with the electric current that passes through diode, be different from traditional incandescent lamp, Halogen lamp LED and xenon lamp, the working life that led light source has, brightness, response speed, characteristic such as controllability and spectral distribution makes it be widely used in the lighting field of machine vision, but the operating characteristic of led light source and useful life temperature influence bigger, how reasonably to control led light source and be the efficient and long-term operation precondition of a Vision Builder for Automated Inspection.
Summary of the invention
Defective in view of the prior art existence, the utility model is at the problem of industrial camera illumination control in the industrial production, designed a kind of novel machine vision light-source control system, by the reasonable control to the machine vision light-source system, improve industrial camera and gather the quality of image, hoisting machine vision system whole work efficiency.
To achieve these goals, the technical solution of the utility model is:
A kind of novel machine vision light-source control system is characterized in that: native system comprises PC main frame, darkroom, industrial camera, master controller, LED power-supply controller of electric, intensity of illumination checkout gear, led light source and infrared photoelectric sensor;
Described darkroom cover is overlying on the whole system outside except the PC main frame;
Described master controller is by connected LED power controller controls led light source, and the output of master controller links to each other with intensity of illumination checkout gear, infrared photoelectric sensor and industrial camera respectively simultaneously, links to each other by serial ports with the PC main frame;
Described PC main frame is connected with industrial camera by USB interface;
Described infrared photoelectric sensor is positioned at the conveyer belt side, and its infrared tube main shaft and conveyer belt plane parallel are vertical with the determinand direction of motion, when being used for determinand through infrared photoelectric sensor, triggering master controller and interrupts.
Further, described master controller adopts the C8051F020 chip.
Further, described intensity of illumination checkout gear adopts photo resistance.
Compare the beneficial effects of the utility model with existing apparatus:
The utility model control method realizes simply, is convenient to operation and stable, and the sophisticated product that is particularly suitable for being applied in based on machine vision detects on the production line, has promotional value widely; By the reasonable control to the machine vision light-source system, can improve the quality that industrial camera is gathered image, prolong the working life of illuminating equipment, reduce energy resource consumption, hoisting machine vision system whole work efficiency.
Description of drawings
Fig. 1 is a kind of novel machine vision light-source control system structural front view;
Fig. 2 is a kind of novel machine vision light-source control system structure vertical view;
Fig. 3 is a kind of novel machine vision light-source control system master controller workflow diagram;
Fig. 4 is that a kind of novel machine vision light-source control system master controller serial ports interrupts flow chart.
Among the figure: 1, PC main frame, 2, the darkroom, 3, industrial camera, 4, led light source, 5, infrared photoelectric sensor, 6, the intensity of illumination checkout gear, 7, master controller, 8, the LED power-supply controller of electric.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1 and Figure 2 (for visual representation more goes out the utility model, A in the drawings represents the article conveyer belt, B represents object under test, C represents direction of transfer), native system comprises PC main frame 1, darkroom 2, industrial camera 3, master controller 7, LED power-supply controller of electric 8, intensity of illumination checkout gear 6, led light source 4 and infrared photoelectric sensor 5;
Described darkroom 2 covers are overlying on the whole system outside except PC main frame 1;
Described infrared photoelectric sensor 6 is positioned at conveyer belt A side, and its infrared tube main shaft and conveyer belt A plane parallel are vertical with the object under test B direction of motion, and when object under test B process infrared photoelectric sensor 5, infrared photoelectric sensor 5 triggers master controllers 7 and interrupts,
Described master controller 7 adopts the C8051F020 chip, links to each other with intensity of illumination checkout gear 6, LED power-supply controller of electric 8, infrared photoelectric sensor 5 and industrial camera 3 external trigger ports respectively, links to each other by the UART0 serial ports with PC main frame 1.
Further, as shown in Figure 3, Figure 4, when master controller 7 receives triggering signal from infrared photoelectric sensor 5, master controller 7 is lighted led light source 4 by LED power-supply controller of electric 8 and is triggered industrial camera 3 and take pictures, take pictures finish after, thereby master controller 7 cuts out LED power-supply controller of electric 8 and extinguishes led light source 4, waits for next time and interrupts; When master controller 7 receives the signal of sending from PC main frame 1, can detect the electromagnetic radiation situation when led light source 4 is opened and closed in the darkroom, and will detect data by serial ports and send PC 1 back to, master controller 7 also can receive illumination duration and the LED brilliance control information of the led light source 4 that PC main frame 1 sends by serial ports.
Its operation principle: the visible light interference can have a strong impact on the precision of vision measurement, so whole system all uses darkroom 2 to cover except PC main frame 1, guarantees the stability of measurement point spectrum with this; Object under test B enters darkroom 2 successively through line conveyor A, when the process of the object under test B on conveyer belt A infrared photoelectric sensor 5, infrared photoelectric sensor 5 triggers master controller 7 and interrupts, master controller 7 is lighted led light source 4, master controller 7 is taken pictures by high level external trigger industrial camera 3 then, take pictures after the end, close led light source 4, wait for next object process; Light conditions when master controller 7 can light and cut out by intensity of illumination checkout gear 6 (photo resistance) detection led light source 4 in the darkroom 2, and by serial ports data are reached PC main frame 1, master controller 7 also can with cross that serial ports receives that main frame sends about illumination duration, the information of LED brightness regulation.
The whole system operation flow process can accurately be controlled, and can monitor electromagnetic radiation state in the darkroom in real time, reduces the led light source operating time, hoisting machine vision required image quality.
The utility model has promoted operating accuracy and the service efficiency of Vision Builder for Automated Inspection, grasps the opportunity in advance for enterprise produces higher-quality product.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, all should be encompassed within the protection range of the present utility model.
Claims (3)
1. novel machine vision light-source control system, it is characterized in that: native system comprises PC main frame, darkroom, industrial camera, master controller, LED power-supply controller of electric, intensity of illumination checkout gear, led light source and infrared photoelectric sensor;
Described darkroom cover is overlying on the whole system outside except the PC main frame;
Described master controller is by connected LED power controller controls led light source, and the output of master controller links to each other with intensity of illumination checkout gear, infrared photoelectric sensor and industrial camera respectively simultaneously, links to each other by serial ports with the PC main frame;
Described PC main frame is connected with industrial camera by USB interface;
Described infrared photoelectric sensor is positioned at the conveyer belt side, and its infrared tube main shaft and conveyer belt plane parallel are vertical with the object under test direction of motion, when being used for determinand through infrared photoelectric sensor, triggering master controller and interrupts.
2. a kind of novel machine vision light-source control system according to claim 1 is characterized in that: described master controller employing C8051F020 chip.
3. a kind of novel machine vision light-source control system according to claim 1 is characterized in that: described intensity of illumination checkout gear employing photo resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229266 CN203219583U (en) | 2013-04-29 | 2013-04-29 | Novel machine vision light source control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229266 CN203219583U (en) | 2013-04-29 | 2013-04-29 | Novel machine vision light source control system |
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| CN203219583U true CN203219583U (en) | 2013-09-25 |
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| CN 201320229266 Expired - Fee Related CN203219583U (en) | 2013-04-29 | 2013-04-29 | Novel machine vision light source control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323883A (en) * | 2016-10-31 | 2017-01-11 | 上海电机学院 | Machine vision LED illuminating apparatus for color discrimination |
| CN108064111A (en) * | 2017-12-31 | 2018-05-22 | 芜湖哈特机器人产业技术研究院有限公司 | A kind of robot vision light-source control system |
| CN108120718A (en) * | 2016-11-29 | 2018-06-05 | 研祥智能科技股份有限公司 | Products detection system based on machine vision |
| CN113205482A (en) * | 2021-03-23 | 2021-08-03 | 中建三局第三建设工程有限责任公司 | Iron and steel rust removal quality grade judgment method based on visual identification |
-
2013
- 2013-04-29 CN CN 201320229266 patent/CN203219583U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323883A (en) * | 2016-10-31 | 2017-01-11 | 上海电机学院 | Machine vision LED illuminating apparatus for color discrimination |
| CN108120718A (en) * | 2016-11-29 | 2018-06-05 | 研祥智能科技股份有限公司 | Products detection system based on machine vision |
| CN108064111A (en) * | 2017-12-31 | 2018-05-22 | 芜湖哈特机器人产业技术研究院有限公司 | A kind of robot vision light-source control system |
| CN113205482A (en) * | 2021-03-23 | 2021-08-03 | 中建三局第三建设工程有限责任公司 | Iron and steel rust removal quality grade judgment method based on visual identification |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130925 Termination date: 20140429 |