The rapid development of automotive electronics technology has made traditional in-vehicle electronic products (such as in-vehicle DVDs, in-vehicle power amplifier systems, etc.) facing the trend of being eliminated, and in-vehicle infotainment systems based on satellite navigation and equipped with various control networks have shown strong competitive advantages . At present, the in-vehicle infotainment system has developed quite maturely in technology. How to achieve a better application experience for consumers at a low price has become the most concerned issue of various manufacturers. Mr. Fang Weidong, General Manager of the Automotive Electronics Business Unit of Malata Group, said: "The future technological development of in-vehicle infotainment products will mainly focus on functions, such as the introduction of the Internet and Internet of Vehicles. The in-vehicle infotainment function will be completed by the network. The in-vehicle infotainment system , Internet and automotive intranet applications will become more and more popular. "
"With the popularization and application of GPS positioning technology, its development direction will show a diversified trend. Many independent GPS technologies agreed in the industry are gradually disappearing. GPS positioning technology is widely used in various electronic products. Become a public intersection of these electronic products. "Mr. Cui Pibang, Marketing Director of Yuanfeng Technology Co., Ltd. pointed out.
The pre-installation market of China's in-vehicle infotainment system is expected to erupt from the end of next year to the beginning of the following year. By that time, the installed volume of in-vehicle navigation will reach about 1/4 to 1/2 of the market size. At the same time, The front-loading market for in-vehicle infotainment will continue from some local companies (such as BYD, Changan, Haima, Chery and other first-line independent brands) to some joint venture companies, mainly focusing on passenger cars with a grade of about 100,000 yuan ( Cars in secondary cities).
The difficulty of the pre-installation market for in-vehicle infotainment systems is mainly in the price / performance ratio. At this stage, the technology of the in-vehicle infotainment system is no longer a problem, all the required functions can be met, and how to achieve the performance and price balance of the in-vehicle infotainment system is still the biggest headache for developers. In the aftermarket of in-vehicle infotainment systems, some complete in-vehicle infotainment products are priced at just over 1,000 yuan, and it is worth questioning whether they can meet the performance requirements.
For the application of car GPS products, Android platform, multimedia and 3G communication technology will be the three major development directions of the industry. Therefore, the development of two-way communication of in-vehicle infotainment products (relative to the one-way reception of GPS) and value-added service applications (such as YFMAP and Cheyou online services provided by Yuanfeng) are the core of in-vehicle infotainment products. .
Mr. Rong Haifeng, CTO of Yuanfeng Technology, said that the previous GNSS systems are basically based on the positioning technology of a single constellation system, such as the GPS of the United States. However, such a system faces the following problems: GPS system signals are affected by the US national policy, which makes positioning based on the system signals unreliable; after the past few years of development, the positioning technology based on the GPS system has become quite mature In the future, there is limited room for further improvement.
The tremendous changes in the related technical fields in the past few years mainly include: Russia's Glonass system is maturing, and the Beidou system using Chinese independent knowledge technology will also be successfully used in various industries in the near future. The GPS + Glonass dual-system positioning and navigation products developed by Yuanfeng, the accumulated technology can also be applied to GPS + Beidou navigation products, which will make technical preparations for the industrialization of China ’s Beidou technology in the future. In recent years, due to the rapid development of MEMS technology and the popularization of sensors such as Gyro and G-Seneor based on MEMS technology in iPhone and other products, blind area navigation (DR) no longer requires traditional expensive and bulky sensors. Using MEMS-based sensors can achieve DR inexpensively in car navigation and even in portable navigation systems. Even in the basement or tunnel, continuous positioning can be achieved.
Rong Haifeng emphasized that the most important technical challenge is how to increase the support of Glonass or Beidou in the system that originally only supports GPS, especially compatible with Glonass or Beidou under the premise of the existing antenna and RF architecture. In this respect, it is also worthwhile to break through some inherent thinking and make the product as good as possible.
At present, the GPS navigation network mainly uses a static planning algorithm, which determines that the car navigation function cannot perform a more accurate analysis of the actual road conditions. How to improve the vehicle GPS route planning function depends mainly on the collection and processing of dynamic data by the country. The lag in processing time will cause the vehicle GPS to fail to obtain the data information required for navigation in a timely manner. The increasing maturity of Glonass system and Beidou system will form a competition with GPS in this industry. Through the formation of this competition mechanism, after the adoption of multi-network interaction technology in the near future, the accuracy of in-vehicle navigation products will be expected to increase from the current dozens of meters to less than one meter. At present, the GPS system can not give the information of the static direction angle, and it will be expected to be solved by then. There are complex interactive operations in multi-network interaction technology. Yuanfeng's two-way communication technology provides interactive full dynamic, real-time update and real-time error correction navigation functions. The use of multi-method synthesis, multi-network, electronic compass and AGPS technology can accelerate the speed and ability of satellite reception.
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