With the continuous promotion and adoption of USB3.0 by consumers, the cost will continue to decrease. Ninety percent of PCs sold at present have built-in USB3.0 interfaces, and consumers do not need to pay extra for them. Components such as USB3.0 connectors and cables are readily available. In addition, the USB3.0 cable can provide 4.5W of power, which is enough to power the machine vision camera without additional power supply.
As a brand-new technical specification in the industry, the USB3.0 interface camera promotes the development of other related technologies that have higher requirements for bandwidth, and improves the bandwidth of multi-device applications. The technical advantages of USB3.0 are mainly reflected in the following aspects:
its bandwidth exceeds that of USB2.0, IEEE1394b and GigE, and
it uses one cable to transmit power and data . The
implementation cost is lower than CameraLink
plug and play, and it is easier to set up than
GigE USB3Vision Standard Adopted by International Automated Imaging Association (AIA)
With USB3.0, designers can have higher bandwidth: USB3.0 supports a high data rate of 5Gbps, which is 10 times that of USB2.0 (480Mbps). After 8b/10b encoding, USB3.0 can provide 4Gbps available bandwidth for data. USB 3.0 continues to support the bulk and isochronous transfer mechanisms of USB 2.0 to ensure data delivery and bandwidth, respectively. In terms of synchronous transmission, USB3.0 has been significantly enhanced: the transmission speed of USB3.0 has been increased from 24MBps of USB2.0 to 384MBps, which is equivalent to 16 times that of USB2.0. Applications that require real-time data can benefit greatly from this speed increase.
With the higher available bandwidth, USB 3.0 can transfer high-resolution and high-frame-rate video content without compression, without loss of image quality. Therefore, USB3.0 will not affect the image quality, but also helps to promote further miniaturization of machine vision cameras. At 5Gbps data rates, USB 3.0 supports more different frame sizes and frame rates, making it a more versatile technology that supports many different applications. The bandwidth of USB3.0 is significantly higher than that of IEEE1394b and GigE, which are comparable in cost, and almost comparable to the bandwidth of CameraLink, which costs 3 to 4 times or even higher.
From the perspective of machine vision quality and consumer cost, the overall system cost of implementing a USB3.0 machine vision system is far lower than the cost of implementing GigE and IEEE1394b, and even lower than CameraLink.
For applications such as 3D imaging that employ a multi-camera system, the cost difference is even more pronounced. Since a single USB host can support up to 255 devices, multiple USB 3.0 cameras can run in parallel on a single bus through low-cost and commercial USB 3.0 hubs. Not all other standards offer this flexibility, in the case of CameraLink, an additional frame grabber is required for each camera.
USB3.0 is backward compatible standard, compatible with USB1.1 and USB2.0 standard, with the ease of use and plug-and-play function of traditional USB technology. In the field of machine vision, USB3.0 has brought another new revolution in industrial cameras. Long Ruizhike (www.loongv.com) launched the PCIE to UBS3.0 expansion card in a timely manner, which is specially used for industrial cameras. USB3.0 industrial cameras can transmit the captured image data in real time, which is enough to achieve high-speed Industrial production processes such as production monitoring and quality inspection are more suitable for the strict requirements of high speed and high pixels in the current market.
As a brand-new technical specification in the industry, the USB3.0 interface camera promotes the development of other related technologies that have higher requirements for bandwidth, and improves the bandwidth of multi-device applications. The technical advantages of USB3.0 are mainly reflected in the following aspects:
its bandwidth exceeds that of USB2.0, IEEE1394b and GigE, and
it uses one cable to transmit power and data . The
implementation cost is lower than CameraLink
plug and play, and it is easier to set up than
GigE USB3Vision Standard Adopted by International Automated Imaging Association (AIA)
With USB3.0, designers can have higher bandwidth: USB3.0 supports a high data rate of 5Gbps, which is 10 times that of USB2.0 (480Mbps). After 8b/10b encoding, USB3.0 can provide 4Gbps available bandwidth for data. USB 3.0 continues to support the bulk and isochronous transfer mechanisms of USB 2.0 to ensure data delivery and bandwidth, respectively. In terms of synchronous transmission, USB3.0 has been significantly enhanced: the transmission speed of USB3.0 has been increased from 24MBps of USB2.0 to 384MBps, which is equivalent to 16 times that of USB2.0. Applications that require real-time data can benefit greatly from this speed increase.
With the higher available bandwidth, USB 3.0 can transfer high-resolution and high-frame-rate video content without compression, without loss of image quality. Therefore, USB3.0 will not affect the image quality, but also helps to promote further miniaturization of machine vision cameras. At 5Gbps data rates, USB 3.0 supports more different frame sizes and frame rates, making it a more versatile technology that supports many different applications. The bandwidth of USB3.0 is significantly higher than that of IEEE1394b and GigE, which are comparable in cost, and almost comparable to the bandwidth of CameraLink, which costs 3 to 4 times or even higher.
From the perspective of machine vision quality and consumer cost, the overall system cost of implementing a USB3.0 machine vision system is far lower than the cost of implementing GigE and IEEE1394b, and even lower than CameraLink.
For applications such as 3D imaging that employ a multi-camera system, the cost difference is even more pronounced. Since a single USB host can support up to 255 devices, multiple USB 3.0 cameras can run in parallel on a single bus through low-cost and commercial USB 3.0 hubs. Not all other standards offer this flexibility, in the case of CameraLink, an additional frame grabber is required for each camera.
USB3.0 is backward compatible standard, compatible with USB1.1 and USB2.0 standard, with the ease of use and plug-and-play function of traditional USB technology. In the field of machine vision, USB3.0 has brought another new revolution in industrial cameras. Long Ruizhike (www.loongv.com) launched the PCIE to UBS3.0 expansion card in a timely manner, which is specially used for industrial cameras. USB3.0 industrial cameras can transmit the captured image data in real time, which is enough to achieve high-speed Industrial production processes such as production monitoring and quality inspection are more suitable for the strict requirements of high speed and high pixels in the current market.