OmniVision Driver monitoring17 Feb 2021 23:39
Driver Monitoring
OmniVision claims its OVM9284 CameraCubeChip module is the world’s first automotive-grade, wafer-level camera. The 1-Mpixel module, measuring just 6.5 × 6.5 mm, provides driver-monitoring-system designers with flexibility on placement within the cabin; for instance, moving it from behind the steering wheel to the vertical A-pillar. In addition, the company noted that the module has the lowest power consumption among automotive camera modules—over 50% lower, they said, than the nearest competitor.
The integrated OVM9284 image sensor has a 3-µm pixel and a ¼-in. optical format, along with 1280 × 800 resolution. It’s built on the supplier’s OmniPixel3-GS (global-shutter) pixel architecture, which provides light-handling efficiency at the 940-nm wavelength. Thus, according to OmniVision, it results in high-quality driver images in near or total darkness. In a GS pixel-based image sensor, every pixel of the entire pixel array acquires the image during the same time period.
Unlike the OVM9284, “most existing DMS cameras use glass lenses, which are large and difficult to hide from drivers to avoid distraction, and are too expensive for most car models,” said Aaron Chiang, marketing director at OmniVision.
The OVM9284’s integration of OmniVision’s image sensor, signal processor, and wafer-level optics in a single compact package helps reduce the complexity of component acquisition and increases supply reliability while speeding development time. Furthermore, all CameraCubeChip modules are reflowable. This means they can be mounted to a PCB simultaneously with other components using automated surface-mount assembly equipment.
OVM9284 module samples are available now, and mass production is expected in Q4 of 2020.
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