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Dalian Dayoushang Group launches ADAS high-definition smart camera solution based on weltrend and onsemi products

The rapid development of technologies such as 5G communication and intelligent driving has promoted the continuous upgrading of the intelligent process of automobiles. In this context, as the core device of the intelligent driving perception link, the on-board camera not only has high requirements for safety performance, but also with the increasing degree of intelligent driving, people are concerned about its imaging effect, mechanical strength, heat resistance, Parameters such as life cycle have put forward more stringent requirements.The ADAS high-definition smart camera solution based on weltrend and onsemi products by Dalian Dayou has the characteristics of simplicity and low energy consumption.

On January 20, 2022, Dalian General Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary Youshang launched ADAS HD based on Weltrend WT8911 chip and Onsemi AS0140AT chip Smart camera solution.

Dalian Dayoushang Group launches ADAS high-definition smart camera solution based on weltrend and onsemi products
Figure 1 – The Display board of Dalian Dayou Shang’s ADAS high-definition smart camera solution based on weltrend and onsemi products

The rapid development of technologies such as 5G communication and intelligent driving has promoted the continuous upgrading of the intelligent process of automobiles. In this context, as the core device of the intelligent driving perception link, the on-board camera not only has high requirements for safety performance, but also with the increasing degree of intelligent driving, people are concerned about its imaging effect, mechanical strength, heat resistance, Parameters such as life cycle have put forward more stringent requirements. The ADAS high-definition smart camera solution based on weltrend and onsemi products by Dalian Dayou has the characteristics of simplicity and low energy consumption, and can be integrated into the vehicle lens module to help users capture clear images in all directions, thereby enhancing the security of ADAS.

Dalian Dayoushang Group launches ADAS high-definition smart camera solution based on weltrend and onsemi products
Figure 2-Scenario application diagram of Dalian Dayoushang’s ADAS high-definition smart camera solution based on weltrend and onsemi products

Founded in 1989, Weltrend is one of the well-known IC design companies in Taiwan. With years of technology accumulation, the company’s product line has expanded from MCU, various digital and analog IP to include image processing/recognition , High-efficiency brushless DC motor control, security hashing, physiological signal detection, digital power supply and other algorithms, with the strength of rapid development of SoC. The weltrend WT8911 used in this solution is a high-performance smart camera processor for ADAS applications. It integrates a 32-bit RISC CPU and DSP instruction set, operates at a frequency of up to 200MHz, and has rich visual processing units/interfaces such as Scaler, lens correction, image masking, optical flow detection, etc.

In addition to the high-performance WT8911, this solution also uses the onsemi AS0140AT 1.0 MP format digital image sensor and image sensor processor. The device includes fully automatic feature support (AWB and AE) and Adaptive Local Tone Mapping (ALTM) to enhance HDR video. The AS0140AT implements high-sensitivity 3.0 µm pixels and DR-Pix technology, along with advanced noise reduction, for excellent low-light performance. It can operate in interlaced (NTSC or PAL) or progressive mode, capturing images in linear or high dynamic range mode. The AS0140AT can operate in video (main) mode or in single-frame trigger mode, providing flexibility for multi-camera systems.

Dalian Dayoushang Group launches ADAS high-definition smart camera solution based on weltrend and onsemi products
Figure 3 – Block diagram of Dalian Dayou’s ADAS high-definition smart camera solution based on weltrend and onsemi products

Through the test, this solution can detect vehicles or objects with a speed greater than the vehicle within 15 meters behind in BSD/RBSD_blind spot detection mode; in LDW_lane departure warning mode, according to the customer lens HFOV angle specification definition, Detectable distance and lane width; in MOD_moving object detection mode, this solution can detect all moving objects in the area of ​​5m(H)*4m(V) behind.

Core technical advantages:

• AS0140A 1.0 MP format digital image sensor and image sensor processor:
Support fully automatic functions (AWB and AE);
Support for Adaptive Local Tone Mapping (ALTM);
High sensitivity 3.0µm pixel and DR-Pix technology;
Capture images in linear or high dynamic range mode;
Can operate in video (main) mode or in single frame trigger mode.

• WT8911 Smart Camera Processor:
Built-in ADAS algorithm, with complete and rich visual processing functions and interfaces;
Built-in scaler, distortion correction, image mask, optical flow detection and other functions;
It can be installed in the front, rear, left and right directions of the vehicle, and a single smart camera can simultaneously execute and download ADAS algorithms;
With compact and low power consumption features, it can be integrated into automotive lens modules.

• Solution Specifications:

• ON Semiconductor AS0140AT:
3.0µm pixel with ON Semiconductor DR-Pix technology;
Excellent low light performance;
45fps at 1.0MP, 60fps at 720p;
Linear or high dynamic range video;
Color processing optimized for HDR video operation;
color and gamma correction;
Auto exposure, auto white balance, 50/60Hz auto flicker detection and avoidance;
Adaptive Local Tone Mapping (ALTM);
Programmable Spatial Transformation Engine (STE);
Graphic overlay function (Pre-rendered Graphical Overlay).

• Weltrend WT8911:

CPU:
D1088 [email protected]

"The rapid development of technologies such as 5G communication and in…