Multimedia networks in cars

Moderní elektronika se stává nezbytnou součástí dnešních automobilů. Dynamicky se rozvíjející informační a telematické služby nacházejí široké uplatnění v automobilovém prostředí. Moderní aplikace vyžadují přenos velkého množství dat, což jim zajišťují dnešní komunikační protokoly. Cílem mé diplomové práce je analýza a návrh implementace multimediálních sítí do automobilů. Jednotlivé návrhy jsou charakterizovány a srovnány podle požadavků, kterým jsou v automobilovém prostředí vystaveny. Navržené topologie využívají nejen dnes používané technologie, ale jsou zde i návrhy, které nebyly dosud v automobilovém prostředí použity. Jednotlivé návrhy jsou srovnány a vyhodnoceny z pohledu automobilového výrobce.Automotive manufacturers face interesting challenges as electronic devices are becoming essential in modern vehicles. One of the most rapidly growing domains is infotainment and telematics, where applications require a large amount of data to be transmitted on-board and also exchanged with the external world. This thesis is intended to analyze possible implementations of multimedia networks in vehicles, in relation to various aspects and features in this area. Based on various requirements different multimedia networks are proposed and studied, making a comparison between them with regards to a number of criteria. A broad approach during the investigation of the multimedia protocols is chosen in order to enlarge the area of used technology. The comparison gives an insight into the particular proposed solutions from the automotive industry’s point of view. Based on the comparison of the proposals a suitable multimedia network can be chosen.

NETWORK FOR MULTIMEDIA APPLICATION

International audienceFor the last four decades, the number and sophistication of electronic systems in vehicles have shown an exponential increase. One high-growth area is telematics systems-the convergence of mobile telecommunications and information processing in cars (radios, Web browsers, CD/DVD players, telematics, and infotainment systems). There is the need for a high-speed serial interface for future vehicles, able to share audio-video sources between all passengers and able to connect automotive electronic world with consumer electronic world. Different networks are available for multimedia automotive applications. Because of their capabilities IDB-1394b and Most are strong candidate. IDB 1394 is the automotive version of IEEE 1394 version b. It is designed for high-speed multimedia applications that require large amounts of information to be moved quickly in a vehicle. Key features include hot plug capability, compatibility with consumer electronics and the ability to use small, flexible, and inexpensive cables and connectors. Its flexible topology supports both branching and daisy-chaining of nodes. MOST (Media Oriented Systems Transport) is a Multimedia optical fiber system transport that is designed for the automotive environment. This paper presents the main characteristics of these two multimedia protocols. It includes the electrical characteristics, topology, transmission media, software layers… It includes as well some examples of applications and platform developmen

Automotive Networks : A Review

In recent years, rapid growth in the field of electronics and computer technology which makes the life simpler and faster. This development hits the automobile sector, which makes increases the systems in vehicle like infotainment system, safety system and security system. These systems are integrated to know the status of the vehicle for each and every second, this is done by means of different networking protocols. In this paper, the different network architecture and protocols are discussed and which is best suited for automobile in the current scenario