There are many types of industrial camera interface. The following are the common interface and its related definition:
- **USB port **:
- ** USB 1.0 **: released in 1996, with a transmission speed of 1.5Bit/s.
- **USB1.1**: released in 1998, with a transmission speed of up to 12 Mbit/s. Commonly used in USB mice, keyboards, home scanner, and other devices.
- **USB2.0**: released in 2000, with a transmission speed of 480Mbit/s and a communication distance of 5m. 80% of the band width is used for image transmission.
- **USB3.0**: released in 2008, transmission speed of 4.8Gbit/s, communication distance of 10m, 80% of the band width used for image transmission.
- **1394 interface **: divided into 4-core and 6-core. There were two pairs of data cables in the 4-core, and the 6-core also contained a set of power cables to supply power to external devices. The 1394 interface does not require a controller and can achieve 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 (100 Mbit/s) with a reduced data rate. The transmission distance can be further improved by using relay equipment.
- **Camerlink interface **: A digital image signal communication interface protocol introduced by the Aia Association. It is a serial communication protocol. It uses LVVS interface standard (differential technology: LVVS (Low voltage differential signal)), which has the characteristics of high speed, strong anti-interference ability and low power consumption. It was developed from the Channel Link technology. It added some transmission control signals on the basis of the Channel Link technology and defined some related transmission standards. The protocol uses an ADC- 26 pin or an SSR- 26 pin, which has a high speed, a band width of up to 6400 Mbit/s, strong anti-interference ability, and low power consumption. However, it requires a separate CameraLink interface, which is not portable, resulting in high cost and less practical applications.
- **Gige Giga-bit ether interface **: It was created and promoted by the Aia (Automatde Imaging Association). It was a camera interface standard developed based on the Giga-bit ether communication protocol. It was suitable for industrial imaging applications. It transmitted an uncompressed video signal over the network. It was a standard for transmitting images over long distances using cheap cables. The Thousand-kilometer network protocol was stable and easy to use. It could work when connected to the Thousand-kilometer network card. The transmission distance was long, and it could transmit 100 meters. It could be used by multiple computers at the same time. The CPU usage rate was small.
- **CoaXPress interface **: It is a high-speed, non-symmetrical point-to-point serial communication digital interface standard with a transmission speed of up to 6.25Gbit/s and a transmission distance of more than 100m. Large amount of data transmission, long transmission distance, can choose the transmission distance and transmission capacity (from
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