Since it has been approved as an official standard in 2011, CoaXPress (CXP) has gained a significant status in the machine vision ecosystem. Numerous compliant products (cameras, cables, frame grabbers, converters, repeaters…) are now available and adopted by machine makers and system integrators worldwide. Moving forward, the CoaXPress workgroup is currently working on CoaXPress 1.2, as well as the next significant evolution of the standard, CoaXPress 2.0.
CoaXPress carries high-definition high-frame-rate video over standard coaxial cables. Compared to traditional video transport standards such as SDI (and HD-SDI as well as 3G-SDI), it provides the significant advantage of supplying power to the camera (PoCXP, Power over CXP) and controlling the camera, all over the same cable. CXP is then used to transport video in applications such as in-vehicle monitoring or in other defense and military applications that require high levels of robustness and resistance to high and low temperatures. Beside technical clarifications and corrections of the specification, CoaXPress 1.2 introduces the use of a screw-on coupling DIN 1.0/2.3 connector, which will ensure additional robustness against shocks and vibration.
The main factor driving the adoption of CoaXPress in the vision inspection machine market is the bandwidth that it provides, putting the next generation high resolution and high frame rate cameras within reach. A major feature of the next revision of the standard, CoaXPress 2.0, is the increase of the maximum connection bit rate to 12.5Gbps. Currently, the maximum data rate over a single connection is 6.25Gbps (CXP-6). The next revision of the standard will specify two additional data rates, CXP-10 (at 10Gbps) and CXP-12 (at 12.5Gbps). The target of this evolution is twofold: Increase the maximum bandwidth available: With four cables and CXP-12 connections, the maximum data transfer rate will be 50Gbps, or 5GByte/s. For example, this is sufficient to operate a 10Bit 12MP-area-scan sensor at more than three hundred images per second, or an 8Bit 16k line-scan sensor at 300 thousand lines/s. Cost reduction: Most of the CoaXPress cameras available today need two or four connections. Increasing the connection bandwidth will reduce the number of connections (and frame grabbers) and cables required per camera, as well as the total cost of the system.
Conventional cameras capture images using only three frequency bands (red, blue, green), while the full visual spectrum is a much richer representation that facilitates a wide range of additional and important applications. A new technology allows conventional cameras to increase their spectral resolution, capturing information over a wide range of wavelengths without the need for specialized equipment or controlled lighting.
Although different 3D cameras and scanners have existed for some time, present solutions have been limited by several unwanted compromises. If you wanted high speed, you would get very low resolution and accuracy (e.g. Time-of-Flight cameras and existing stereo vision cameras, which despite being fast typically have resolution in the millimeter to centimeter range). If you wanted high resolution and accuracy, you would typically get a camera that was slow and expensive (e.g. the high accuracy scanners).
Vom 18. bis 19. Oktober veranstaltet der VDI die nunmehr 4. Fachkonferenz zum Thema ‚Industrielle Bildverarbeitung‘ im Kongresshaus Baden-Baden. In 19 Fachvorträgen werden u.a. die Schwerpunktthemen Automation in der Robotik mit 3D-Bildverarbeitung, Oberflächeninspektion und Bildverarbeitung in der Nahrungsmittelindustrie und intelligenten Logistik behandelt.
C-Red 2 is an ultra high speed low noise camera designed for high resolution SWIR-imaging based on the Snake detector from Sofradir. The camera is capable of unprecedented performances up to 400fps with a read out noise below 30 electrons. To achieve these performances, it integrates a 640×512 InGaAs PIN Photodiode detector with 15m pixel pitch for high resolution, which embeds an electronic shutter with integration pulses shorter than 1μs. The camera is capable of windowing and multiple ROI, allowing faster image rate while maintaining a very low noise.
Ob Automatisierung, Mensch-Maschine-Kollaboration in der Robotik oder selbstfahrende Autos – die Auswahl des richtigen Sensors hängt stark von der Applikation und dem gewünschten Output ab. Diese 6 Faktoren helfen Ihnen dabei, den passenden Sensor für Ihre Applikation zu finden!
Vom 17. bis 18. Oktober veranstaltet die Metrologic Group ihr diesjähriges Anwendertreffen in Uhingen. Bei den zahlreichen Anwendervorträgen und der Hausmesse sind auch Messtechnik Firmen wie Creaform, Faro, Hexagon, Kreon und Wenzel vertreten. Anmeldeschluss ist bereits der 4. Oktober.