As a new technical specification in the industry, USB 3.0 promotes the development of other related technologies with higher bandwidth requirements and improves the bandwidth of multi-device applications. Since USB 3.0 has many technical advantages, its development prospects are even brighter. The technical advantages of USB3.0 are mainly reflected in the following aspects:
Its bandwidth exceeds USB2.0, IEEE1394b and GigE
Use one cable to transmit power and data
Implementation cost is lower than CameraLink
Plug and play, and easier to set up than GigE
It has been adopted by the International Automated Imaging Association (AIA) as the USB3Vision standard.
USB 3.0 supports a high data rate of 5Gbps, 10 times that of USB 2.0 (480Mbps). After 8b/10b encoding, USB 3.0 can provide 4Gbps of available bandwidth for data. USB3.0 continues to support the batch and isochronous transfer mechanisms of USB2.0, thereby ensuring data delivery and bandwidth respectively. In terms of synchronous transmission, USB 3.0 has been significantly enhanced: the transmission speed of USB 3.0 has been increased from 24MBps of USB 2.0 to 384MBps, equivalent to 16 times of USB 2.0. Applications that require real-time data can benefit greatly from this speed increase.
USB 3.0 can transmit high-resolution and high-frame-rate video content without compression and losing image quality. Therefore, USB 3.0 will not affect image quality and help promote further miniaturization of machine vision cameras. At 5Gbps data rates, USB 3.0 supports different frame sizes and frame rates, making it a more versatile technology that supports many different applications. The bandwidth of USB 3.0 is significantly higher than that of IEEE1394b and GigE, which cost the same and is almost comparable to the bandwidth of CameraLink, which costs 3 to 4 times or even more.
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