Saturday, February 24, 2018

IVSimaging Blog


Keep up to date on new products, as well as product updates.

What’s the future for USB 3 in machine vision?

Machine vision cameras with an Ethernet interface accounted for half of world revenues in 2014, according to a report recently published by IHS. The research for this new edition was carried out during the first half of 2015 and estimated that the interfaces with the next largest camera revenues were Camera Link and Camera Link HS combined, accounting for 18.9%; and USB (USB 2 and USB 3 combined) with 15.7%.

What is surprising is that, despite the promotion and anticipated market growth of USB 3 cameras, they are forecast to account for only a quarter of USB camera revenues by 2019. USB camera revenues are then projected to account for only 16.3% of the total.

IHS concludes that users will only be motivated to upgrade to USB 3 if a faster speed is necessary for their application. In theory, this is an increase in data rate from 500Mbits/s to 5Gbits/s; although this rate is not always achieved, there is invariably a substantial increase. However, factors that favour USB 2 rather than USB 3 include the longer permissible cable length, the lower power requirement, and the abundance of USB 2 devices and computers with only USB 2 connectivity. The switch from USB 2 to USB 3 will take time.

During the research, some manufacturers commented they were receiving more enquiries about cameras with interfaces for the more general industrial communication technologies: e.g. PROFINET, EtherNet/IP and EtherCAT. IHS believes this suggests a trend to more users considering machine vision as an integral part of the automation system rather than an add-on inspection tool.

Source: IHS Inc. - Market Insight

USB3.0: Revisiting USB Vision

For industrial applications, cameras using USB vision hadn’t seemed to have gained much traction – until the release and proliferation of the USB 3.0 Vision standard.   Although camera manufacturers have been offering USB interfacing before, over the past few months it seems that many new USB 3.0 Vision camera offerings have sprung up  from a variety of vendors.   With that availability of components, and adherence to the USB 3 Vision standard, this interface appears to be reasonably viable for industrial machine vision.  Multiple cameras can be implemented, with very good bandwidth, easy component integration, up to 5 meter native cable lengths.  Further, many vendors offering this interface are implementing cameras with the somewhat less-expensive, but high-speed CMOS sensors (though many are available with CCD sensors).  In the software arena, NI notably recently announced support for USB 3.0 Vision in their latest acquisition driver release.   I think the USB 3.0 Vision standard starts to look appealing, at least for some, if not many applications.  I have not yet used these products on a project, but will be looking for an appropriate situation to try out this technology. 


Courtesy of:

IVS Imaging is a distributor & manufacturer of machine vision cameras, lenses, cabling, monitors, filters, interface boards & more. IVS is your one stop shop for all your vision needs. IVS Imaging is known across the USA for carrying imaging products from leading manufactures, including Sony Cameras and Accessories, Basler Industrial Cameras, Hitachi Surveillance Cameras, Toshiba Network-based IP Cameras, and Sentech Advanced Digital and OEM cameras. Contact IVS Imaging for all your imaging products, parts, and accessories needs.

About|Contact Us|Customer Service|IVS Blog|IVS TV | Terms Of Use | Privacy Statement
Copyright 2018 by IVS imaging • 101 Wrangler Suite 201, Coppell, Texas 75019 - (888) 446-1301