Understanding the GMSL Camera Interface


Posted February 6, 2024 by Vadzoimaging

In the realm of automotive video applications, particularly in infotainment and advanced driver assistance systems (ADAS), the Gigabit Multimedia Serial Link (GMSL) serial interface takes center stage.

 
Developed by Maxim Integrated, this high-speed serial interface is not only prevalent in automotive sectors but also finds applications in robotics and intelligent traffic systems.

Components of GMSL Camera Interface

The GMSL camera interface comprises serializer and deserializer families, offering various interfaces such as HDMI, CSI-2, DSI, asymmetric DSI, eDP, oLDI, and single, dual, and quad GMSL1/GMSL2. This versatile interface allows data transmission over a single cable up to 15 meters in length, utilizing coax or shielded twisted pair cables. The serialization on the transmitting side transforms data into a serial stream, while deserialization on the receiving side processes it into a parallel word.

Noteworthy Features of GMSL Cameras

GMSL cameras are particularly popular in industrial applications that demand high data rates and long-distance support. Their ability to transmit data instantly, even in harsh industrial conditions, and with zero latency is a notable competitive advantage. Additional features include virtual camera support, backward compatibility, automatic repeat request, and compatibility with ARM platforms.

Applications of GMSL in Embedded Vision

Vehicle Infotainment Systems: GMSL is preferred over other interfaces, such as MIPI or USB, in automotive infotainment systems due to its ability to support features like passenger entertainment, vehicle information display, navigation, and connectivity, even when a camera is placed at a significant distance from the host processor.

Advanced Driver Assistance Systems (ADAS): GMSL's reliability and flexibility make it ideal for ADAS systems, providing essential support for features like lane positioning, parking assistance, and collision avoidance through uncompressed camera feed transmission.

Robotics: In autonomous mobile robots (AMR), GMSL cameras offer optimal solutions for navigation, object detection, and identification, thanks to their fast frame rates and low exposure time capabilities. The ability to transmit data up to 15 meters from the host processor is advantageous for remote robotics.

Intelligent Transportation Systems: GMSL's capacity to reliably transmit image and video data over long distances makes it a suitable interface for smart traffic systems employing sensors, cameras, and routers.

Fleet Administration: GMSL is crucial in fleet management systems, especially in large vehicles like trucks and forklifts. The use of a surround-view system, enabled by GMSL, helps eliminate blind spots, enhancing driver awareness through a multi-camera system.

Conclusion

Vadzo stands out in providing high-quality cameras leveraging GMSL technology. These cameras offer bidirectional control data, power delivery, and high-speed video transmission over a single coaxial cable. With lower latency and impressive frame rates, Vadzo's GMSL cameras can operate efficiently up to a 15-meter distance from the host processor.
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Issued By Vadzo Imaging
Country United States
Categories Electronics
Tags camera , industry , technology , gmsl , embedded camera
Last Updated February 6, 2024