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The inspection system detects defects in pharmaceutical glass bottles (including white bottles, brown bottles and bottles with scales). The inspection information of pharmaceutical glass bottles is shown in Figure 1-3. The height of the inspected bottle is 15~150mm, and the inspection speed is required to be 0~280 per minute.

Image processing can be divided into preprocessing and measurement processing. Preprocessing is to correct the brightness of the image, extract and filter the color, and convert the binary data, that is, to convert the collected image into information that can be recognized by the computer. Measurement processing first matches or collects information for the part that needs data collection, and then judges the collected data. For example, the detection of size, that is, each size needs to have a tolerance upper and lower limit judgment, which is completed by software, that is, the core measurement processing is to perform measurement judgment processing, which is usually completed by the hardware acquisition card and software.

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Machine vision

Synonyms for ILLUMINATION: explanation, interpretation, illustration, translation, construction, elucidation, analysis, clarification; Antonyms of ...

Machine vision software is used to complete the processing of input image data, and then obtain the result through certain calculations. The output result may be PASS/FAIL signal, coordinate position, string, etc. Common machine vision software appears in the form of C/C++ image library, ActiveX control, graphical programming environment, etc. It can be dedicated (such as only for LCD detection, BGA detection, template alignment, etc.), or it can be applicable (including positioning, measurement, barcode/character recognition, spot detection, etc.).

From the above workflow, it can be seen that the machine vision system is a relatively complex system. Most of the monitored objects are moving. Since the matching and coordinated actions of the machine vision system and the moving objects have to be pin-point precise, strict requirements are placed on the action time and processing speed of each part of the system. In some application fields (such as robots, flying object guidance, etc.),this requirement extends to the weight, volume, and power consumption of the vision systems.

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The computer is the core of a PC-based visual system. Its function is to complete the processing of image data and most of the control logic. For detection-type applications, a higher-frequency CPU is usually required, which can reduce the processing time. At the same time, in order to reduce the interference of electromagnetic, vibration, dust, temperature, etc. in industrial sites, industrial-grade computers must be selected.

The function of the sensor is to collect external information, that is, to capture images. The target object is illuminated by a light source, and the reflected light represents the relevant information of the measured target, which is the same as the principle of human eyes seeing objects. The reflected light enters the camera lens, and the process of imaging by the camera is called capturing the image.

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Industrialmachine vision

Machine vision systems are mainly composed of image acquisition units, image information processing and recognition units, result display units, and visual system control units. The image acquisition unit obtains the image information of the target object to be measured and transmits it to the image information processing and recognition unit. Since the machine vision system emphasizes accuracy and speed, the image acquisition unit is required to provide clear images in a timely and accurate manner. Only in this way can the image information processing and recognition unit obtain correct results in a relatively short time. The image acquisition unit is generally composed of a light source, a lens, a digital camera, and an image acquisition card. The acquisition process can be simply described as the digital camera shooting the target object and converting it into an image signal under the condition of illumination provided by the light source, and then transmitting it to the image information processing and recognition unit through the image acquisition card. The image information processing and recognition unit performs various operations on the grayscale distribution, brightness and color of the image, extracts the relevant features of the target object, completes the measurement, recognition and NG (no) judgment of the target object, and provides its judgment conclusion to the visual system control unit. The visual system control unit controls the on-site equipment according to the judgment conclusion to realize the corresponding control operation of the target object.

Computervisiontutorial

Usually installed in the computer in the form of a plug-in card, the main job of the image acquisition card is to transmit the image detected by the camera to the computer host, it converts the analog or digital signal from the camera or a certain format of image data stream. At the same time, it can control some parameters of the camera, such as trigger signal, exposure, integration time, shutter speed, etc. Usually, different types of cameras have different hardware structures of image acquisition cards, and also different bus forms, such as PCI. PCI64. Compact PCI, PC104. ISA.

It belongs to an imaging device. Usually, the visual system is composed of one or more imaging systems. If there are multiple cameras, the image card can be switched to obtain image data, or synchronous control can be used to obtain the food of multiple camera channels at the same time. According to the needs of the application, the camera can output standard monochrome video (RS-170°CCTR), composite signal (YCO.RGB) signal, or non-standard progressive scan signal, line scan signal, high-resolution signal, etc.

Usually in the form of fiber optic switches, proximity switches, etc., are used to determine the position and state of the object being used. Tell the image sensor to perform correct acquisition.

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An imaging accessory, it often plays a vital role in the quality of imaging. LED lights of various shapes, high-color fluorescent lights, fiber optic halogen lamps, etc. can be used as light sources.

Computervision

Machine vision system refers to the process of converting the captured target into image signals and transmitting them to a dedicated image processing system through machine vision products (i.e. image capture devices, which are divided into CMOS and CCD), and converting them into digital signals according to information such as pixel distribution, brightness, and color. The image processing system performs various operations on these signals to extract the characteristics of the target and then controls the equipment on site according to the judgment results.

When the glass bottle passes on the conveyor belt, the system uses an external trigger method to accurately capture the images of the four sides and one front of the glass bottle at a fixed position, and then transmits the image to two high-performance processors for processing and analysis, and then summarizes the results on a server for unified control and display.

IEC 62471:2006 ED1. IEC 62471:2006 ED1. Photobiological safety of lamps and lamp systems IEC 62471:2006 ED1. Publication date: Jul 26, 2006. General information.

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Cognex

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Optical Filters are used to selectively transmit or block certain wavelengths or wavelength ranges within optical systems.

The visual software completes the image analysis (unless it is only used for monitoring), and then needs to communicate with the external unit to complete the control of the production process. Simple control can directly use the I/O of some image acquisition cards, while relatively complex logic and motion control must rely on additional programmable logic control units and motion control cards to achieve the necessary actions.

20151113 — A common bi-convex lens is considered a positive lens because it causes light rays to converge, or concentrate, to form a real image.

Information is output to the executor. Since the machine vision system itself belongs to the collector, it does not have the ability to execute, but it is the eyes and judgment basis of the executor, so it will pass the captured information to a third party.