Key technologies for developing vehicle networking and its development trend
1. Sensor technology and sensor information integration This article refers to the address: http:// "Car networking is a network between cars, roads and people." The application of sensing technology in car networking is mainly the sensor network of the car and the sensor network of the road. The sensor network of the car can be divided into an in-vehicle sensor network and an off-vehicle sensor network. The in-vehicle sensor network is a network that provides information about the condition of the car. For example, remote diagnosis requires these status information for analysis and judging the condition of the car; the external sensor network is a sensor network used to sense the environmental conditions outside the vehicle, such as Anti-collision sensor information, a camera that senses the external environment, this information can be used to enhance safety and information as assisted driving. The sensor network of the road refers to the network of sensors placed on the road and on the roadside. These sensors are used to sense and transmit the status information of the road, such as traffic flow, vehicle speed, intersection congestion, etc., which can make the vehicle system get relevant information. Information on roads and traffic conditions. Whether it is inside or outside the car, or the sensor network of the road, it plays the role of car interior condition and environment perception. It has acquired a unique (different from the current Internet) "content" for "Internet of Vehicles", integrating these " "Content", that is, integrating sensor network information, will be an important technological development content of "Car Networking", and it is also a unique technological development content. 2. Open and intelligent vehicle terminal system platform Just like computers in the Internet and mobile phones in the mobile Internet, the vehicle terminal is the medium for the owner to obtain the ultimate value of the car network. It can be said to be the most important node in the network. At present, many car navigation entertainment terminals are not suitable for the development of "vehicle networking", and the core reason is to adopt a non-open, non-intelligent terminal system platform. Terminal system platforms based on not open and not smart enough are difficult to be transformed into a network ecosystem. This can be seen in the smart phone field to see this important: a large number of developers based on Apple's IOS and Google's Android terminal operating system have built hundreds of thousands of applications for these two mobile network ecosystem Created core values. All of this is because developers can develop applications based on such systems, especially Google's Android system. The source code is completely open and can be reduced and optimized. Therefore, from the current point of view, Google's Android will also become the mainstream operating system of the car network terminal system. It is naturally born for network applications, and is designed for touch operation. It has good experience, can be customized, and the application is rich and the number of applications. Rapid growth has formed a mature network ecosystem. On the other hand, the current WinCE, which is the most used car terminal, can be said to be a closed system. It is difficult to have room for further development. Because the application is pitiful, any modification is incapable of Microsoft's closed strategy, and it has worked hard to develop the Internet function. However, there are no special applications and services available. In the pre-installation market, Roewe 350 and its INKANET, in the aftermarket, Lu Chang Technology's Android platform products have proved the value of Android, Android will be the inevitable choice of the car entertainment navigation terminal platform operating system. 3. Speech recognition technology No matter how good the touch experience is, for the driver, the touch terminal system is not safe during the driving process. Therefore, the voice recognition technology is particularly important, and it will be a booster for the development of the Internet of Vehicles. The mature voice technology allows the driver to request the service through the mouth of the car network, and can use the ear to receive the service provided by the car network, which is the most suitable application experience for the fast moving space of the car. Mature speech recognition technology relies on a powerful corpus and computing power. Therefore, the development of in-vehicle speech technology itself depends on the network. Because the storage capacity and computing power of the vehicle terminal cannot solve the speech recognition technology of non-fixed commands, it must be To adopt "cloud recognition" technology based on server technology; 4. Server-side computing and service integration technology In addition to the above-mentioned speech recognition using cloud computing technology, many applications and services must be provided with server-side computing and cloud computing technologies. Similar to the Internet and mobile Internet, terminal capabilities are limited. Through server computing, more information and resources can be integrated to provide timely services to the terminals. Server computing begins to enter the era of cloud computing. Cloud computing will be used in the Internet of Vehicles to analyze and calculate road conditions, large-scale vehicle routing, intelligent traffic dispatching, and vehicle diagnostic calculations based on large cases. Internet of Vehicles, like the Internet and mobile Internet, must adopt service integration to achieve service innovation and provide value-added services. Through service integration, vehicle terminals can be more suitable and valuable services, such as call center service and auto insurance business integration, remote diagnosis and on-site service reservation integration, location service and merchant service integration, etc. 5, communication and its application technology The Internet of Vehicles mainly relies on two aspects of communication technology: short-range wireless communication and long-distance mobile communication technology. The former is mainly RFID sensor design and 2.4G communication technology like WIFI. The latter is mainly GPRS, 3G, LTE, 4G. And other mobile communication technologies. These two types of communication technologies are not unique technologies of the Internet of Vehicles. Therefore, the focus of technology development is mainly on the application of these communication technologies, including short-distance wireless communication applications such as highway and parking garage automatic payment, wireless device interconnection, and VOIP applications. , fleet piloting, etc.), monitoring and scheduling data packet transmission, video surveillance and other mobile communication technology applications. 6, Internet technology The essence of the Internet of Vehicles is the integration of the Internet of Things and the mobile Internet. The Internet of Vehicles is to provide services for people (in-car people and people in the car) by integrating information, services, and services. Therefore, it is not only the information and services provided by the Internet of Vehicles. It is an in-vehicle terminal, but all terminals that can access the Internet and the mobile Internet. Therefore, computers and mobile phones are also terminals of the Internet of Vehicles. The existing technologies and applications of the Internet and mobile Internet can basically be used in the Internet of Vehicles, including media entertainment, e-commerce, Web 2.0 applications, and information services. Of course, compared with the existing universal Internet and mobile Internet, the Internet of Vehicles has two key characteristics: one is related to the car and the road, and the other is the location information as a key element. Therefore, it is necessary to develop a special Internet application for the Internet of Vehicles around these two key characteristics, which will bring a wider range of users and service providers to the Internet of Vehicles.
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