Texas Instruments improves ADAS functions

Hub aggregates data from multiple sensors

Electronics firm Texas Instruments has designed a dual-port quad deserialiser hub that could allow for faster, more flexible ADAS applications. The hub aggregates and replicates data from multiple sensors in the car such as cameras and radars.

The system is compliant with the MIPI Camera Serial Interface 2 (CSI-2) specifications and can take data from up to four cameras.

TI said: “High data throughput and precision are essential in autonomous driving and sensor fusion-based ADAS, including surround-view systems, rearview cameras, driver-monitor cameras, camera-monitor systems, front camera systems and satellite radar equipment.”

The new device’s bandwidth enables processing of more video data at faster speeds in equipment designed to recognise pedestrians, cyclists and other obstacles in a vehicle’s path or periphery while driving.

“The device’s dual CSI-2 outputs with virtual channel ID mapping and port replication save processor resources to speed processing of data from up to four cameras at 100 MHz per sensor and 12-bit resolution. In addition, TI’s adaptive equalization (EQ) provides diagnostics that enable the system to monitor cable health and take action before cable failure occurs,” said TI.

The system’s key features include video transmission at up to 1.6Gb/s per lane for higher bandwidth and faster obstacle recognition and supporting simultaneous video replication for data logging, or separate viewing and machine-vision flows. Virtual channel ID mapping helps processors differentiate cameras and high-dynamic-range exposures, making processing more efficient according to TI. While the low-latency control channel enables integration of the image signal processing function into the ECU, and out of the camera, improving image quality and reducing system costs.

tags: Safety
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