Automotive electronics creates a safe, comfortable, and environmentally friendly driving environment

In recent years, automotive-related topics have always occupied a large area in the global media. One is the current economic downturn in the global automotive market. It is facing constant shocks. It always attracts a lot of attention. For today's automobile production and manufacturing demand, the social topic brought about by the rapid growth of the automobile-the economic benefits brought by the rapid growth of the automobile industry and the resulting urban congestion, environmental pollution and traffic safety, etc. .

The application of new technologies in automobiles is becoming the key to solving these problems. Traditional automakers hope to use innovative technology to seize the opportunity in the increasingly fierce market competition, and even the "layman" Google has quietly launched experiments on hundreds of thousands of kilometers of driverless cars. New energy vehicles are regarded as a panacea to solve the environmental problems and oil consumption dilemmas brought about by the rapid growth of automobiles, and battery management and motor drive technology have become the key to the future battle of the new energy vehicle market.

Design safer and smarter cars

There is no doubt that in today's frequent traffic accidents, car safety is the focus of car consumption. At the same time, as a vehicle that brings great convenience to people's lives, its own driving convenience is also one of the hot topics in the auto market competition. In addition to Google ’s self-driving cars mentioned above, some high-end cars now have automatic parking, and GM recently announced that they are developing a new technology that uses this technology to automatically find empty parking spaces and Complete the parking process fully automatically. Automobile intelligence is already an important trend in the development of automobiles today.

Vision-based advanced driver assistance systems (ADAS) can greatly improve driving safety and vehicle intelligence in many ways. By installing rear-view / front-view / side-view cameras and visual processing, the ECU can implement multiple functions to help the driver prevent risks in advance. Popular applications include lane departure warning, high beam and low beam adjustment, traffic sign recognition, parking assistance, rear view / around view, collision avoidance, etc. According to industry market research agency data, 70% of cars currently have a rear view function, and 30% of high-end cars have a front view function. By 2015, this proportion is expected to reach 60%.

Figure 1: Advanced driver assistance systems are widely used in automotive active safety.

In terms of passive safety, the auxiliary protective safety system (SRS) including frontal airbags has become the standard configuration for many mid-range cars. With the increase in the number of airbags such as side airbags and curtain airbags, SRS is developing towards more advanced airbag systems. The future trend is to use two front airbags as standard equipment in low-end cars, while six or more airbags will appear in mid- to high-end cars, and airbags will also tend to develop in both intelligent and integrated ways.

A special report on automotive research from iSuppli shows that the advanced driver assistance system market will reach revenue of US $ 1.65 billion in 2011, a 57% increase from US $ 1.05 billion in 2010, and the growth rate in 2012 will rise to 63%. As a global leader in automotive electronics technology, ADI's observation is that the world's major automotive suppliers and OEMs are using ADI's leading high-performance signal processing technology to implement and deploy various radar-based and vision-based vehicles Advanced driver assistance system.

These technologies that can bring great safety improvements to automobiles are spreading from high-end car "patents" to low-end cars, and lower-cost electronic component solutions will greatly shorten this process. For example, the highly integrated AD8283 automotive radar analog front-end chip introduced by ADI in mid-2011 is such a product. It contains the receive path signal conditioning and data acquisition circuits in a single chip, allowing the radar system to receive more quantities The signal is transmitted and decoded, and more importantly, the chip enables car manufacturers to realize the on-board radar system previously implemented in high-end cars at a low cost. ADI's convergent processor Blackfin can provide mature and reliable high-performance video processing solutions, suitable for a variety of systems from single function to multi-function. The visual pre-processor integrated in ADI's new generation of processors can significantly reduce processing The burden of the processor, thereby reducing the performance requirements of the processor and further reducing the system implementation cost. In addition, ADI's optimized compiler and "Image Toolbox" algorithm library can greatly improve efficiency and MIPS, and the software-based structure helps users quickly launch distinctive terminal products. At the same time, ADI's rich product line also provides video decoders / encoders, video multiplexers / switches and video amplifiers to provide customers with system solutions.

Continuously improving semiconductor technology provides manufacturers with more leading choices. For example, in the MEMS products that are widely used in passive safety and active safety design, ADI's next-generation MEMS products will be more integrated, such as integrating gyroscopes and low-g acceleration sensors, etc., highly integrated MEMS (such as acceleration sensors and The ADXRS8XX with integrated gyroscope and the ADXL2XX with low g and high g acceleration sensors are already under development.

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