Industrial Camera Cable Interface

Common industrial camera cable interface

The definition of an industrial camera is a key component in a machine vision system, and its essential function is to transform optical signals into ordered electrical signals. If you want to transfer the image collected by the camera, you need to realize it through the interface of the camera, and transfer the image data to our device. The industrial camera cable is a cable product specially used for industrial cameras. With the monitoring of industrial production testing and special application scenarios, the requirements for speed and accuracy are increasing, and it is required to provide protection for the camera's data and power transmission in various application scenarios in motion control and other harsh environments. The demand for line scan cameras for high-speed assembly lines or large-format inspection scenarios has been spawned. Different types of industrial cameras use different industrial cables. So what are the common types of industrial camera cable interfaces?

The USB interface camera is a digital camera that directly outputs digital image signals. The full name of USB is Universal Serial Bus (Universal Serial Bus), and the USB interface is 4 "pins", of which 2 are power cables and 2 are signal cables. USB is a serial interface, which is hot-swappable and easy to connect. The early USB2.0 interface is convenient to connect, almost all computers are equipped with a USB interface, without the need for a capture card. However, the transmission rate of the USB2.0 interface is slow, the transmission speed is 480Mbps, the communication distance is 5m, and 80% of the bandwidth is used for image transmission. The transmission process requires the CPU to participate in management, which occupies and consumes large resources. In addition, the USB2.0 interface generally does not have a fixed screw, the interface is unstable, and there is a risk of loosening on the sports equipment. Later, it was upgraded to USB3.0. USB3.0 added two sets of data lines on the basis of 2.0, which is backward compatible and solves the problem of slow transmission speed. The transmission speed has reached 4.8Gbps, but the transmission distance is still relatively short. 10m, 80% of the bandwidth is used for image transmission. Because the USB interface camera is easy to use and has a wide range of interfaces, it is currently widely used in microscopes, scientific research experiments, portable equipment and other industries. The USB TYPE Micro-B interface is still the mainstream in industrial interface cameras, but it is foreseeable that as the USB Type-C technology matures, future USB interface cameras will begin to popularize the USB Type-C interface.

1394 interface, IEEE1394 bus is a high-speed serial bus, also known as "FireWire" (FireWire), which supports hot plugging, real-time data transmission, bus structure, plug and play. It is used to connect digital products with computers and other machines. It is widely used in the industrial field. The protocols and coding methods are very good, and the transmission speed is stable. The highest transmission speed of 1394a is 400Mbps, and the highest transmission speed of 1394b is 800Mbps, such as 3.2Gb, but it is relatively rare and the interface penetration rate is low. It was monopolized by Apple in the early days, and the computer usually does not contain its interface, so additional capture cards are required. Need to pay attention to its PacketSize data packet size setting. Packet Size is the bandwidth of the entire 1394 bus. With less CPU resources, multiple units can be used at the same time, but due to the low penetration rate of the interface, it has been gradually eliminated by the market. The 1394 interface is divided into 4 cores and 6 cores. There are two pairs of data lines in the 4 cores, and the 6 cores exclude data. It also includes a set of power cords to supply power to external devices. The IEEE 1394 interface does not require a controller and can realize peer-to-peer transmission. The maximum transmission distance of 1394a is 4.5 meters, and the transmission distance of 1394b is usually 10 meters. It can be extended to 100 meters (100Mbps) in the case of reduced data rate. Relay equipment is used. Support can further increase the transmission distance.

The digital image signal communication interface protocol introduced by the AIA Association is a serial communication protocol. Using LVDS interface standard (differential technology: LVDS (low voltage differential signal)), it has fast speed, strong anti-interference ability and low power consumption. Developed from Channel link technology, some transmission control signals are added on the basis of Channel link technology, and some related transmission standards are defined. The protocol adopts MDR-26-pin connector or SDR-26-pin connector, which has the characteristics of high speed, bandwidth up to 6400Mbps, strong anti-interference ability and low power consumption. But because it needs a separate CameraLink interface, it is not portable, which leads to high cost. Cameras with Camera Link interface are relatively few in actual applications.

Created and promoted by AIA (Automatde Imaging Association), it is a camera interface standard developed based on the Gigabit Ethernet communication protocol. It is suitable for industrial imaging applications and transmits uncompressed video signals through the network. It is a standard for long-distance transmission of images using inexpensive cables. The gigabit network protocol is stable and easy to use. It can work when connected to the gigabit network card. In the properties of the gigabit network card, there are also giant frames similar to the Packet Size in 1394. Setting this parameter can achieve a more ideal effect. (I used NI Max before because the packet size was set too large, which made it impossible for the software to collect images.) The transmission distance is long, which can transmit 100 meters. Multiple units can be used at the same time, and the CPU occupancy rate is small.

CoaXPress is an asymmetric high-speed point-to-point serial communication digital interface standard with a transmission speed of up to 6.25Gbps and a transmission distance of more than 100m. The data transmission volume is large, the transmission distance is long, and the transmission distance and transmission volume can be selected: from [email protected] to [email protected], low price, easy to integrate, and supports hot swap. The CoaXPress standard can support the ever-increasing demand for bandwidth over the next ten years, while also satisfying many additional requirements, such as: larger cables, higher cable reliability and flexibility, immediate behavior, and cost-effectiveness. The adoption of standard coaxial cables and bandwidth makes CoaXPress not only interesting in the field of machine vision applications, but also highly suitable for applications in the medical and security markets where coaxial cables are widely used. By using the same coaxial cable, CoaXPress can smoothly upgrade analog video to digital video. CoaXPress uses IEC standardized cables and connectors suitable for most industrial environments. There are two types of connectors for cameras and frame grabbers-75Ω DIN 1.0/2.3 type or 75Ω BNC type, both of which are suitable for high-vibration industrial environments.

Shenzhen Euroway?Technology Co., Ltd.(Savlink), specializing in R&D, production and sales of industrial camera cables.

The content introduced above is the common type of industrial camera cable interface. Different types of industrial camera cables are suitable for different product application scenarios. With the rapid development of electronic information technology and the wide application of various cameras, the global image and video data has exploded, and human society is entering the era of big data of visual information. Industrial cameras can be said to be the soul window of industrial automation systems. From object/barcode identification, product inspection, appearance size measurement to robotic arm/transmission equipment positioning, they are all stages where industrial camera technology can be used. As the scope of application becomes wider and wider, in order to increase application flexibility or work with industrial computers to form more complex automation systems, the specification development trend of industrial cameras is gradually moving closer to personal computers, and some products have even evolved into a sparrow that is small and has five internal organs. A complete mini industrial computer. Compared with the human eye, industrial cameras have the advantages of fast detection speed and no subjective influence on the gate standards. Moreover, the resolution of industrial cameras is much higher than that of the human eye. It can detect subtle parts or circuits better than the human eye. . Industrial cameras are becoming more and more widely used in manufacturing, and products such as industrial cameras are also emerging in new development directions. But no matter what kind of industrial camera system, with the exception of a few special applications, the industrial cameras it uses are getting closer to personal computers. Even smart cameras are essentially a built-in CPU and memory that can perform various visions. Algorithmic industrial computer. The cable industry chain of the industrial camera industry is worthy of attention.

Shenzhen Euroway?Technology Co., Ltd. was established in 2009 in Shenzhen, China, with industrial camera cables, drag chain cables, robot cables, industrial servo cables, optical fiber HDMI cables, medical equipment cables, photoelectric hybrid cables and other products R&D and manufacturing. So far, it has obtained UL, CE, FCC, RoHS, Reach and other safety certifications, as well as HDMI, USB and other product certifications, as well as ISO9001 and quality system certification.

The company continues to grow and develop, and its products are sold to mainland China, Europe, America, Japan, Southeast Asia and other places. We have long-term and stable cooperative relations with many well-known brands...

If you are looking for a good cable interface for your industrial camera, please contact us.We developed USB 3.0 A to Micro B AOC, USB 3.0 A to Type B AOC, USB 3.0 A to C AOC as well as some angle 90 degree USB AOC.

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