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The in-vehicle infotainment system we know today is a result of an 88-year evolution of 司机’ desires to be entertained and stay in-touch while driving. Like the evolution of all broadcast technologies, in-vehicle entertainment began by delivering general broadcasts to the consumer. 多年来, more personalized entertainment evolved in the form of on-board media and later subscription-based content services.
有些相似, GPS导航就此诞生, evolving first in military 应用程序 and eventually found its way into the consumer space. Again, the desire for driver convenience charted a path to bring this technology to the vehicle. The evolution started with very limited functionality; over time, various types of data storage became available to provide the on-board storage needed for the navigation function. Standardization of mapping protocols improved functionality and enabled broader, more consistent 应用程序; however, the large amount of on-board data and the data storage resources available at the time (hard drives, 只读光盘存储器, dvd)使得部署变得很尴尬, 昂贵的, 而且很难维护. Early deployment of these systems was free-standing alongside the entertainment systems, 在一些情况下, had two media slots—one for entertainment and one for navigation, as the navigation media needed to remain in the physical drive to function.
那时GPS还在发展, vehicle designers were evolving the use of in-vehicle communication systems such as controller area network (CAN) and local interconnect network (LIN) to expose vehicle information to the radio and improve the ability to control the radio via methods such as steering wheel controls.
Also in development were the first display-based infotainment systems. 四十年前, bold automotive designers experimented with display, 演讲, 触摸界面, resulting in the first display-based infotainment systems deployed in production automobiles in 1986. Functionality was a combination of radio functions mixed with in-vehicle information derived from the CAN bus. 导航不包括在内. Although the early executions of these systems met with reliability issues and harsh criticism, they were integral to the development of the entertainment system.
It wasn’t until the early 2000s that the evolution of computing power and display technologies—combined with the introduction of multitasking operating systems and the availability of high-density, cost-effective solid-state memory solutions—created the catalyst to finally enable all of the necessary services to merge into one cost-effective and flexible product: the IVI we know today.
1. 当今的汽车领域
The automotive market for electronic content continues to expand. As we move toward electronic systems replacing mechanical systems—and becoming central to basic vehicle functionality—traditional challenges of extended temperature needs, 高可靠性, and extended product life requirements are being augmented with more stringent safety certifications, 数据安全要求, and rigorous data integrity concerns over a vehicle’s lifespan. Requirements for certification to standards such as ISO26262 are becoming more commonplace.
IVI域也不例外. The IVI is becoming a primary interface for vehicle information—something essential to a driver’s safety. IVI is expected to become the primary platform for connected services and infrastructure connectivity, hosting driver distraction and drowsiness detection, 围观视频, 智能后视镜, monetization of vehicle and user data, 和更多的.
很明显, the expanded functionality demands of IVI require an increase in system computing power in addition to vastly expanded memory requirements. Power management will move to the forefront as these systems are placed into the evolving electrification of the automotive fleet. This exposure to expanded connectivity requires a more fundamental hardware-based security strategy.
Typical IVI platform memory requirements are:
- 非易失性内存(32-64GB) eMMC depending on navigation and 演讲 database)
- DRAM(通常为2-4GB) DDR3 – 1066)
- 潜在的辅助 SD卡 媒体更新
In part two of this blog we will go over the current anatomy of an IVI System.