How machine vision systems work
Machine vision hardware mainly includes two parts: image acquisition and vision processing, and image acquisition is composed of lighting systems, vision sensors, analog-to-digital converters, and frame memory. Robot vision uses vision sensors to obtain a two-dimensional image of the environment, analyze and interpret it through a vision processor, and then convert it into symbols, allowing the robot to recognize objects and determine their position.
The application of machine vision system has three major functions
1. Visual inspection: detect whether there are quality problems in the products on the production line, and this link is also the link that replaces the most labor. For example, semiconductor wafer inspection in the electronics industry, surface scratch inspection in the manufacturing industry, panel printing quality inspection in the automotive industry, color difference detection in the printing industry, pharmaceutical bottle packaging defect detection in the medical industry, and appearance packaging inspection in the food industry.
2. Visual recognition: Recognition uses machine vision positioning to process, analyze and understand images to identify targets and objects in various patterns. It can achieve data traceability and collection, and is widely used in auto parts, food, medicine and other fields. For example, material distribution, sorting, barcode scanning in industrial production processes and express sorting in the logistics industry.
3. Visual positioning: Positioning visual positioning requires the machine vision system to be able to quickly and accurately find the measured parts and confirm their position, and use machine vision to locate the loading and unloading, and guide the mechanical arm to grasp accurately. For example, in the field of semiconductor packaging, the device needs to adjust the pickup head according to the chip position information obtained by machine vision, accurately pick up the chip and bind it.
Benefits of machine vision systems
In the process of intelligent manufacturing production, the detection of products is more efficient than manual detection, better accuracy and stability, with digital management, information integration functions, to avoid artificial secondary pollution, to avoid direct contact with the product, can be detected in harsh environments, and the long-term use cost is lower. It has been widely used in industry, agriculture, transportation, medicine and other industries, and can be said to have penetrated into all aspects of our life, production and work.
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Cognex introduces the In-Sight®3D-L4000 vision system
Cognex Corporation (NASDAQ: CGNX), one of the global leaders in industrial machine vision, today announced the In-Sight®3D-L4000 embedded vision system. It is an innovative smart camera with 3D laser displacement technology that helps users to ...
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Cognex product features:
flexibility
No matter how fast the production is and how accurate the measurement is, it can be achieved with a seamless application architecture and network environment.
Rugged
The machine vision systems studied are all integrated and streamlined vision systems, which do not require processors.
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Cognex Vision Systems – Machine Selection Elements for Machine Vision Systems
In machine vision systems, it is critical to obtain a high-quality, processable image. The reason for the success of the system is to ensure that the image quality is good and the features are obvious. The reason why a machine vision project fails most of the time is due to poor image quality and inconspicuous features ...
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Cognex introduces a new bottom-facing barcode reading system with a high read rate of 99.9%.
Cognex, one of the world's leaders in industrial machine vision and industrial barcode readers, recently introduced the DataMan® 470 backside barcode reading system. The system uses an innovative area scan-based approach to quickly and accurately read barcodes on the bottom of packages or parcels, making it ideal for ...
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Cognex launched CeMAT ASIA to deeply interpret the innovative development of intelligent identification
As a representative enterprise in the field of intelligent identification technology, Cognex has attracted much attention from the industry for its technological innovation and development.
At the 2021 CeMAT ASIA exhibition, which is a stage where hundreds of industry-leading technologies are contending, Cognex also brought several new high-reliability, cost-effective smart products.
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Cognex's pallet scanning system helps improve logistics efficiency
Over the past few years, customer delivery expectations have been shrinking as global e-commerce sales have grown dramatically, putting tremendous pressure on retail distribution and e-commerce businesses. They began looking for ways to increase yield and efficiency, order accuracy, and improve traceability. Among them, the pallet automatically ...
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Cognex Corporation has released the new In-Sight® 3800 vision system
Cognex Corporation (NASDAQ: CGNX), one of the global leaders in industrial machine vision, has announced the new In-Sight® 3800 vision system. Designed for high-speed production lines, the In-Sight 3800 offers an extensive library of vision tools, advanced imaging capabilities, and flexible software ...
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An introduction to the features of the Cognex Vision System - Line Scan Camera
1. Compared with the area scan camera, the acquisition speed of the line scan camera is faster, the general line scan camera according to the interface is different, he has a line frequency from 5K to 100K Hz, or even higher, because of his high line frequency, so the exposure time requirements are very short, often with a bright line light source ...
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Profit growth of more than 50%! How do the two giants of Cognex and Keyence do it?
On April 27, KEYENCE released its financial report, which attracted attention due to record revenue and profit.
In contrast, Cognex, another giant in machine vision, is inferior to Keyence's revenue scale, but its growth momentum and high profits can still show its competitive barriers.
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Cognex Barcode Readers—Industrial Barcode Readers for Smart Manufacturing
Industrial barcode reader, also known as barcode scanner, is a visual recognition solution that can integrate barcode recognition, data processing, transmission, and communication functions, and is mainly used in SMT assembly lines, assembly line picking/installation, packaging line active coding/labeling, robot stacking, drug ...
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Common causes of Cognex barcode scanner exclamation mark lights
1. If the scanner is not connected to the computer, it may be caused by a loose USB interface or an aging line, you can try to replace the USB cable or replace the interface.
2. The barcode scanner is set incorrectly, it may be that the settings of the barcode scanner do not match the settings of the computer, you can check the scanner ...
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Cognex Vision Systems – How to Choose a CCD Camera?
1). Type of sensor CCD or CMOS
2). Video features; Including point frequency and line frequency. 3). Signal output interface;
4). Working modes of the camera: continuous, trigger, control, asynchronous reset, long time integration.
5). Video parameter adjustment and control method ...
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Analysis of the cause of the failure of the Cognex barcode scanner to scan the code in Excel
Fault 1: The scanner can't scan the barcode Solution: In this case, you must first understand whether you can scan the barcode but not upload it, or the laser but not scan the barcode. You can scan the barcode but do not upload to the computer is that the computer and the scanner are not connected well, if it is wired to check ...
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Cognex Vision Systems – What are the basic structures of a machine vision system?
A typical industrial machine vision system includes: light source, lens (fixed focal lens, zoom lens, telecentric lens, microscope lens), cameras (including CCD cameras and COMS cameras), image processing unit (or image capture card), image processing software, monitors, communication/transmission ...
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Cognex Barcode Scanner – Possible faults and solutions when using a barcode scanner
Faults that may be encountered with the use of a barcode scanner
1. After the code scanner is successfully connected, the LED flashes continuously, and there is no sound, so it cannot be scanned.
Possible causes: It is usually caused by poor IC contact.
Solution: In this case, please contact the dealer or manufacturer.
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What's going on with the Cognex barcode scanner error indicator light on?
1. The connection of the code scanner does not meet the transmission specifications;
2. The interface of the barcode scanner or computer is loose;
3. The Bluetooth scanner cannot be connected to the computer normally.
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Cognex unveils the In-Sight 7000 Smart Camera®, a high-performance vision system
Cognex Corporation (NASDAQ: CGNX), a leading global supplier of machine vision systems, has introduced a high-performance vision system, the small, rugged, and intelligent In-Sight®7000 smart camera. This new system series represents a real revolution in the field of machine vision.
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Cognex Camera - Introduction to the main parameters of the lens of industrial camera
The main parameters of the lens
1. Focal Length
Focal length is the distance between the center point of the lens and the clear image formed on the glue plane. The size of the focal length determines the size of the viewing angle, the small value of the focal length, the large angle of view, and the large range of observation; The focal length value is large, and the angle of view ...
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Cognex Barcode Readers – An introduction to common barcode reader failures
1. After reading a barcode, the reader crashes
(1) Because of the protection function of the barcode reader, if the read barcode data transmission error, it will automatically enter the protection state, thereby preventing data loss. If you put it without passing it on
After a successful data read, the barcode reader can re-enter the barcode from the ...
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Cognex adds a powerful light source option to the new DataMan 280 series of barcode readers
Cognex Corporation (NASDAQ: CGNX), one of the global leaders in industrial machine vision, recently announced the new DataMan®282 fixed-mount barcode reader with Cognex's high-power integrated flare-shaped light source (HPIT) and dome illumination accessory options. These...
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