Stepping into next generation ADAS multi-camera architectures: Page 6 of 6

December 14, 2016 //By Thorsten Lorenzen, Texas Instruments
Stepping into next generation ADAS multi-camera architectures
Highly integrated approach to achieve extended synchronization and advanced HDR image quality to enable Automotive Surround View & Mirror Replacement Applications.

Carefully laying out and tuning both the components will ensure power to transmit over the coax cable but avoid impacting the AC signal. Please see the following Application Report for more details on PoC filter design: www.ti.com/lit/an/snla224/snla224.pdf.


Figure 6. Power over Coax (PoC) supplies camera modules remotely

 

Vision Processing

The TDA2x Vision Processor, illustrated in Figure 1 requires the ISPs to remain external. However, the TDA3x Vision Processor incorporates the ISP on-chip. Hence, higher level of integration can be achieved. Due to its video port (VIP) capability the video streams arrive in the processor’s memory without burdening the processing cores. Instead, the VIP’s DMA controller ensures all video streams to be stored in its frame buffers. In turn, the processing cores receive notifications on interrupt level when new frames arrive. The processor’s software accesses the frame buffers as needed to process the video data.

Conclusion

Self-driving cars will demand a high number of sensor technologies in order to completely map its environment. Sensor technologies as such as Vision, Radar and LIDAR will play a significant role. Sensors will be mounted around the car and therefore need compact, low-cost cabling to connect satellite sensors to a central fusion processing unit. FPD-Link III solutions fulfill those demands future sensor fusion systems.

For more information please visit: https://www.ti.com/product/ds90ub964-q1 and https://processors.wiki.ti.com/index.php/TIDA-00455_-_Automotive_ADAS_4_Camera_Hub_with_integrated_ISP_and_DVP_outputs

About the author:

Thorsten Lorenzen is Senior Field Application Engineer for automotive ADAS applications at Texas Instruments. He studied electrical engineering and electronics engineering at the THM in Giessen/Germany and at the University of Central Lancashire in Preston/UK.

 

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