Flexible SoC solution escorts ADAS

The advanced driver assistance system is one of the main kinetic energy of the automotive electronics industry, laying a solid foundation for autonomous driving. Although the implementation of fully automatic driving will take time, the development of related technologies has brought significant benefits to customers. Automobile OEMs have begun to introduce highly sophisticated ADAS systems to improve the safety and comfort of driving in the current automotive industry. The growth of the Advanced Driver Assistance System (ADAS) segment has been driven by many different factors.

Flexible SoC solution escorts ADAS

End-users have also recognized the advantages of ADAS for different traffic conditions. Although it takes some time before buyers are willing to spend a lot of money on car peripheral monitoring equipment, it seems that they can now understand parking assistance systems or automatic The emergency braking system not only saves lives, but also prevents low-speed traffic accidents, thereby reducing economic losses. Another driving factor is the development of fully automated driving technology. Automated driving was only a technical topic discussed by automotive industry technologists, and now companies such as Google have entered the field and created Robocars driverless cars that seem impractical but will be widely promoted. Although Google has received media reports and continues to promote the development of ADAS technology, how its technology is applied to OEM car production settings is still a problem, and consumers must consider cost and appearance when purchasing new cars. However, the impact of all the technologies displayed by companies such as Google on traditional auto companies is unquestionable, and increasing pressure has driven traditional auto companies to implement these technologies in the short term.

ADAS market and trends

What impact does ADAS have on the automotive industry supply chain? Most OEMs have already planned a blueprint for the development of fully automated driving technology. In other words, these OEMs have defined a range of applications that are intended to be rolled out to end-users between now and 2025; and during that time, ADAS features and functionality continue to improve. Industry vendors have seen some developments in the development of ADAS technology in the car. For example, the parking assist technology was originally built on the corner of the bumper. The mechanical dipstick that assists the driver in estimating the distance when parking or reversing, and then quickly Ultrasonic sensors with sound and visual feedback appear in the ground, and the rear view camera begins to replace or enhance the rear ultrasonic sensor, making it safer to reverse and park.

While some people have thought that ultrasonic sensor technology will be outdated, the automatic parking assist system with up to 12 ultrasonic sensors re-recovers, and can accurately measure the parking space, and let the driver only need to control the brake pedal and throttle. The parking can be completed, and the electronic control unit (ECU) has full control of the steering wheel. Today's OEMs and Tier 1 suppliers have begun to showcase more advanced automatic parking systems, allowing drivers to fully auto-stop at the push of a button, and the driver can even stop outside the car. In the not-too-distant future, other concepts that are currently being explored will become a reality, including driverless cars automatically finding parking spaces and parking in place.

Richard Hanna, head of global automotive business at PricewaterhouseCoopers, points out that for Tier 1 suppliers in the automotive sector, this will bring some new challenges, and OEMs will be more demanding for more integrated electronic subsystems. This effect is even more apparent after ZF Friedrichshafen AG acquired TRW AutomoTIve for $12.4 billion to build the world's second-largest auto supplier. Tolga Oal, vice president of TRW Global Electronics, said: "Automation is a technology that is highly valued by the industry and requires an integration between sensors, controllers, actuators and redundancy strategies."

Semiconductor companies that traditionally supply ADAS also face some challenges. While each generation of new products is increasingly demanding system intelligence, OEMs and Tier 1 suppliers also want to reduce component and system bill of materials costs and increase system-level integration. In addition, the weakness of the non-automotive market has prompted many semiconductor manufacturers to aggressively enter the automotive industry to expand into new business opportunities, including infotainment/connections, ADAS and electronics/hybrids, which will remain significant for at least the next few years. Growth space.

Both the above segments and sub-segments have their own characteristics, and even if infotainment products can include the functionality of consumer devices, such devices are not likely to be used in powertrain applications. For ADAS, it is not easy to analyze whether a component is suitable or not, because it requires a combination of various computing power, power consumption, and functional safety requirements. However, most consumer electronic grade semiconductor component products cannot meet such high requirements. Requirements.

Provides an elastic SoC solution for image-based ADAS

To overcome these challenges, Xilinx developed the Zynq-7000 All Programmable SoC for the automotive (XA)-class Zynq-7000 All Programmable SoC for serial processing in the ARM Cortex-A9 core and on the programmable design logic architecture. Hardware accelerated parallel processing product line; the product line has passed the AEC-Q100 certification. Zynq supports a software-centric homogeneous architecture and provides optimized hardware and software partitioning for functional acceleration; it can increase overall system performance by more than 130% compared to traditional multi-chip solutions.

Zynq is suitable for the ADAS platform because of the combination of two distinct properties in a single-chip component: software processing with dual ARM Cortex-A9 cores (up to 667MHz) and FPGA in programmable logic (PL) architecture Flexibility. The processing system (PS) is similar to ASSP and can host software algorithms such as real-time graphical analysis. PL, on the other hand, can host custom hardware accelerators that meet the intensive computing requirements associated with object awareness, identification, classification, and tracing; this flexibility allows developers to create optimized partitions between software and hardware accelerators.

In addition, PL can also be used for image frame capture, de-warping and splicing, as well as graphics and overlays. Developers can have valuable resources through PL to deal with unexpected events. Parallel hardware in programmable logic can take over the task, thereby reducing processor load or reducing power consumption.

Xilinx also fully understands the requirements of the automotive industry for quality and reliability, so the AEC-Q100 verification standard is adopted as the basic vehicle quality specification benchmark. Starting from the 90nm XA Spartan-3A series, Xilinx has rigorously carried out testing work according to the internally-developed “Beyond AEC-Q100 Program”, which adopts the most stringent automotive first-class standards and OEM requirements in the industry. The degree is even twice that of the AEC-Q100. Xilinx is therefore able to fully understand the possible failure mechanisms and launch high-quality and highly robust XA products. From a functional safety perspective, Xilinx's toolchain is certified by TUV SUD, and XA Zynq is widely used in the current production of ASIL-B image systems.

Start with LogiADAK cache

Xilinx also partnered with alliance member Xylon to launch the logiADAK Autopilot Assistance Kit Reference Platform. The latest version of the logiADAK 3.0 platform is based on the Xilinx Zynq-7000 All Programmable SoC ZC706 development board and includes all the basic hardware, design tools, IP and pre-certified reference designs.

The reference design includes applications such as rearview cameras that offer a rich, customized view mode with rear cross path pointers and trailer attachment modes, while front camera features include detection of pedestrians to avoid collisions, lane departure warnings, and optical flow calculations. Blind spot detection and 360 degree view 3D and bird's eye view mode view. For 360-degree panoramic display applications, the platform supports up to six cameras to develop systems for large vehicles such as commercial trucks or buses.

The logiADAK platform is not only suitable for laboratory testing, but also for easy integration into prototype design tests for multi-camera systems and algorithms in vehicles.

However, a common problem in the ADAS vision system, especially the look-around system, is that the camera may not be fully calibrated after it is installed on the vehicle, and this is particularly problematic in production and maintenance. As the number of cameras in the system increases, the problem becomes more and more complicated. Nowadays, the viewing system usually includes 4 or even 6 cameras, and the task of constructing a unified picture through different cameras becomes more difficult and time consuming. Since moderation is related to system accuracy, logiOWL automated real-time stitching correction IP has been added to logiADAK 3.0 (Figure 2).

Although the system is embedded in the vehicle, the automated correction algorithm can be performed directly on the Zynq component, and the time required for the splicing to look at the image is no more than 10 seconds. In addition, without special corrections, the work can be performed by untrained personnel, which greatly simplifies calibration and reduces costs.

Steam Rice Cooker

Multifunction Steam Rice Cooker,Kitchen Rice Cooker,Kitchen Rice Cooker,Automatic Rice Cooker

JOYOUNG COMPANY LIMITED , https://www.globaljoyoung.com

Posted on