Automotive smart cameras use deep learning

Following a collaboration with, StradVision, Renesas Electronics announces the joint development of a deep learning-based object recognition solution for smart cameras. StradVision’s software has been optimised to run on Renesas Electronics’ R-Car SoCs.

The deep learning-based object recognition system is for smart cameras used in next-generation advanced driver assistance system (ADAS) applications and cameras for ADAS Level 2 and above.

Next-generation ADAS implementations require high-precision object recognition capable of detecting vulnerable road users (VRUs) such as pedestrians and cyclists. These systems must also consumer very low power for mass-market mid-tier to entry-level vehicles.

According to Naoki Yoshida, vice president of Automotive Technical Customer Engagement, at Renesas, StradVision is a leader in vision processing technology, with “abundant experience developing ADAS implementations using Renesas’ R-Car SoCs”. The collaboration has produced production-ready solutions “that enable safe and accurate mobility in the future,” said Yoshida. The deep learning based camera system is expected to contribute to the widespread adoption of next-generation ADAS implementations and support the escalating vision sensor requirements expected to arrive in the next few years.

StradVision’s deep learning–based object recognition software delivers high performance in recognising vehicles, pedestrians and lane marking. The high-precision recognition software has been optimised for Renesas R-Car automotive SoCs R-Car V3H and R-Car V3M. These R-Car devices incorporate a dedicated engine for deep learning processing called CNN-IP (Convolution Neural Network Intellectual Property), enabling them to run StradVision’s SVNet automotive deep learning network at high speed with minimal power consumption. The object recognition characteristic realises deep learning–based object recognition while maintaining low power consumption, suitable in mass-produced vehicles, encouraging ADAS adoption.

StradVision’s SVNet deep learning software is an AI perception solution for the mass production of ADAS systems. It is characterised by recognition precision in low-light environments and its ability to deal with occlusion when objects are partially hidden by other objects. The basic software package for the R-Car V3H performs simultaneous vehicles, person and lane recognition, processing the image data at a rate of 25 frames per second. Developers can customise the software, adding signs, markings and other objects as recognition targets. StradVision provides support for deep learning-based object recognition covering all the steps from training through the embedding of software for mass-produced vehicles.

In addition to the CNN-IP dedicated deep learning module, the Renesas R-Car V3H and R-Car V3M feature the IMP-X5 image recognition engine. The on-chip image signal processor (ISP) is designed to convert sensor signals for image rendering and recognition processing. This makes it possible to configure a system using inexpensive cameras without built-in ISPs, reducing the overall bill-of-materials (BoM) cost, says Renesas.

The R-Car SoCs featuring the new joint deep learning solution, including software and development support from StradVision, are scheduled to be available to developers by early 2020.

http://www.renesas.com

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HD LCD video controller has MIPI-CSI2 input for parking assist

Claimed to be the first full HD 1080p LCD video controller to include a four-lane MIPI-CSI2 input, the RAA278842 LCD video controller’s four-lane (or dual two-lane) MIPI-CSI2 input supports up to 1Gbit per second per lane. This allows it to interface with the latest generation of automotive cameras, application processors and graphics processors, explains Renesas Electronics. The controller also supports a 150 MHz single-channel OpenLDI interface and a variety of video interfaces and LCD panel sizes with resolutions up to 1920 x 1080.

The RAA278842 can be used for automotive central infotainment displays (CIDs) and head units, instrument clusters, head-up displays (HUDs) and mirror replacement display applications for advanced driver assistance systems (ADAS).

“The RAA278842 LCD video controller helps automotive system manufacturers develop versatile and reliable display systems that provide superior HMI graphics for analogue and digital video content,” said Niall Lyne, senior director, automotive mixed-signal/power and video, Renesas Electronics. “Our strong heritage in video signal processing for backup cameras along with highly differentiated new technology is valued by automakers and Tier-1 suppliers worldwide,” he said.

The RAA278842 LCD video controller has 10-bit per colour processing built into the image enhancement engine to provide near-zero latency, high quality video. Integrated video diagnostics detect if the incoming video is frozen or corrupted and can provide a direct path for the rear camera video to be displayed on the LCD. This significantly improves rear camera display reliability, explains Renesas, claiming that it virtually eliminates the possibility of a software-related problem causing the rear camera video to be displayed incorrectly or not at all. The RAA278842 can display the camera image on an LCD in less than 500 milliseconds, addressing the fast boot requirement of many OEMs. The EEPROM/SPI flash fast boot allows register programming without requiring an external microcontroller

The RAA278842 with MIPI-CSI2 output and the RAA278843 with traditional BT.656 output, work with the system’s main processor to monitor the camera and the video data coming from the SoC or graphics processor unit (GPU). After vehicle ignition, while the instrument cluster boots up, the RAA27884x controller can display the carmaker’s logo or live camera video. The controller’s on-screen display feature can also simulate warning lamp checks in an instrument cluster application.

Both controllers enable compliance with FMVSS-111, requiring the blind spot area behind the vehicle is displayed in less than two seconds after the driver places the vehicle in reverse gear.

Proprietary input switching eliminates flicker when switching between sources, claims Renesas and the AEC-Q100 Grade-2 qualified devices are specified for operation from -40 to +105 degrees C

The RAA278842 and RAA278843 can be combined with Renesas’ R-Car SoC family, RH850 MCU family, and RL78 MCU family, as well as the ISL78302 dual LDO, ISL78322 dual 2A/1.7A synchronous buck regulator, and ISL78228 dual 800mA synchronous buck regulator to provide power rails for the RAA27884x and other ICs on the automotive infotainment system board.

Mass production quantities of the RAA278842 with MIPI-CSI2 output are available now in a 14 x 14mm, 128-lead LQFP package.

Mass production quantities of the RAA278843 with BT.656 output are available now in a 14mm x 14mm, 128-lead LQFP package.

http://www.renesas.com

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Clock generators, buffers and PCIe clocks and buffers are AEC-Q100-qualified

To meet the demanding clocking needs of in-vehicle systems, Silicon Labs believes it now offers the industry’s broadest portfolio of automotive grade timing solutions, as it introduces AEC-Q100-qualified timing devices, the Si5332 any-frequency programmable clock generators, Si5225x PCIe Gen1/2/3/4/5 clocks, Si5325x PCIe buffers and Si5335x fanout clock buffers.

These timing devices help automotive OEMs and Tier 1 suppliers simplify clock tree design, reduce system points of failure, increase system reliability and optimise the performance of high-speed serial data transfer. The timing devices target automotive camera sub-systems, radar and lidar sensors, advanced driver assistance systems (ADAS), autonomous driving control units, driver monitoring cameras, infotainment systems, Ethernet switches, and GPS and 5G connectivity.

Rather than using more quartz-based components to satisfy a growing list of timing requirements, developers now have the option to simplify their clock tree designs and increase system reliability using the company’s automotive-grade low-jitter, any-frequency clock generators and buffers.

Quartz crystal and oscillator timing devices can be prone to shock and vibration failure as well as start-up issues, explains Silicon Labs. Clocking requirements increase in demand as automotive infotainment platforms continue to adopt new features and ADAS systems increase complexity and data acquisition rates.

Automotive in-vehicle applications require a higher operating temperature range (Automotive Grade 2, -40 to +105 degrees C) and qualification to AEC-Q100 automotive standards.

The Si5332 clock leverages Silicon Labs’ MultiSynth technology to provide any-frequency, any-output clock synthesis with more than 60 per cent lower jitter than competing automotive clocks, says the company. Supporting up to eight clock outputs, selectable signal formats per output clock (LVDS, LVPECL, HCSL, LVCMOS) and independent 1.8-3.3V VDDO, the Si5332 clock interfaces to a range of FPGAs, ASICs, Ethernet switches/PHYs, processors, GPUs, SoCs, and PCIe Gen1/2/3/4/5 and NVLink SerDes. Clock synthesis, clock distribution and format/level translation are consolidated on-chip, enabling optimised single-IC clock tree solutions for automotive designs.

The Si5332 clock generators and Si5335x clock buffers are configurable and customisable using Silicon Labs’ flexible ClockBuilder Pro software, enabling developers to create optimised solutions that exactly match specific clock tree requirements, with samples shipping in less than two weeks.

Samples and production quantities of automotive grade Si5332 clock generators, Si5225x PCIe clocks, Si5325x PCIe buffers and Si5335x clock buffers are available now in 32-QFN and 40-QFN package options.

Evaluation boards (EVBs) for automotive grade timing devices are also available. The EVBs work seamlessly with ClockBuilder Pro, enabling developers to quickly customize a device and evaluate performance.

http://www.silabs.com

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Secure flash memory enhances secure data storage in self-driving cars

Macronix’s secure flash memory has been integrated in Nvidia’s next-generation autonomous driving platforms.

The automotive-grade ArmorFlash memory is being used on the Nvidia Drive AGX Xavier and Drive AGX Pegasus autonomous vehicle computing platforms.

The ArmorFlash memory is secure for data storage in the artificial intelligence (AI)-based Level 2+ advanced driver assistance systems (ADAS) through to Level 5 autonomous driving.   

“Our efforts in conjunction with NVIDIA are singularly focused on elevating the security of data in AI-based autonomous driving applications and ultimately, to enhance the safety of drivers,” said Anthony Le, vice president of marketing, Macronix America.

The ArmorFlash memory on the Drive AGX Xavier and Pegasus platforms can provide trusted identification, authentication and encryption features for autonomous driving security requirements.

ArmorFlash offers a combination of mature security technologies, including unique ID, authentication and encryption features. This blend of features enables superior levels of security in a high-density memory device to prevent data from being compromised, claims Macronix.

The ArmorFlash device provides trusted NVM storage of encrypted and integrity-protected assets. The ArmorFlash supports secure communication channel and protocol with the Nvidia Xavier system on a chip (SoC) via cryptographic operations, integrity checks and additional measures against certain security protocol attacks.

The global ADAS market is expected to exceed $67 billion by 2025, fuelled by a compounded annual growth rate of 19 per cent, according to Grand View Research. The research company attributes the growth to increasing government initiatives mandating driver assistance system to lower road accidents and cites expanding adoption of ADAS in small cars as a factor boosting market demand.

http://www.macronix.com

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