The next wave of cars may use Ethernet
Ethernet's bandwidth would let every passenger in a car could get real-time streaming video, its backers say
Computerworld - The most ubiquitous local area networking technology used by big business may be packing its bags for a road trip.
As in-vehicle electronics become more sophisticated to support autonomous driving, cameras, and infotainment systems, Ethernet has become a top contender for connecting them.
For example, the BMW X5 automobile, released last year, used single-pair twisted wire, 100Mbps Ethernet to connect its driver-assistance cameras.
Paris-based Parrot, which supplies mobile accessories to automakers BMW, Hyundai and others, has developed in-car Ethernet. Its first Ethernet-connected systems could hit the market as soon as 2015, says Eric Riyahi, executive vice president of global operations.
Parrot's new Ethernet-based Audio Video Bridging (AVB) technology uses Broadcom's BroadR-Reach automotive Ethernet controller chips.
The AVB technology's network management capabilities allows automakers to control the timing of data streams between specific network nodes in a vehicle and controls the bandwidth in order to manage competing data traffic.
Ethernet's greater bandwidth could provide drivers with turn-by-turn navigation while a front-seat passenger streams music from the Internet, and each back-seat passenger watches streaming videos on separate displays.
"In-car Ethernet is seen as a very promising way to provide the needed bandwidth for coming new applications within the fields of connectivity, infotainment and safety," said Hans Alminger, senior manager for Diagnostics & ECU Platform at Volvo, in a statement.
Ethernet was initially used by automakers only for on-board diagnostics. But as automotive electronics advanced, the technology has found a place in advanced driver assistance systems and infotainment platforms.
Many manufacturers also use Ethernet to connect rear vision cameras to a car's infotainment or safety system, said Patrick Popp, chief technology officer of Automotive at TE Connectivity, a maker of car antennas and other automobile communications parts.
Currently, however, there are as many as nine proprietary auto networking specifications, including LIN, CAN/CAN-FD, MOST and FlexRay. FlexRay, for example, has a 10Mbps transmission rate. Ethernet could increase that 10 fold or more.
The effort to create a single vehicle Ethernet standard is being lead by Open Alliance and the IEEE 802.3 working group. The groups are working to establish 100Mbps and 1Gbps Ethernet as de facto standards.
The first automotive Ethernet standard draft is expected this year.
The Open Alliance claims more than 200 members, including General Motors, Ford, Daimler, Honda, Hyundai, BMW, Toyota, Volkswagen. Jaguar Land Rover, Renault, Volvo, Bosch, Freescale and Harman.
Broadcom, which makes electronic control unit chips for automobiles, is a member of the Open Alliance and is working on the effort to standardize automotive Ethernet.
Currently, the groups are working on interoperability requirements for devices inside of a vehicle.
Once the requirements are established, Ethernet will play a big part in the integration of different data streaming sensors, including two and three dimensional and infrared cameras, and radar sensors for sophisticated driver assistant systems.
Ethernet can also be used to connect a display head unit and telematic transceiver systems for GPS and vehicle-to-vehicle communications.
There are currently reference scenarios with as many as 35 Ethernet nodes per car, according to TE Connectivity.
"By around 2020 or so, we estimate there will be about 100 million Ethernet ports worldwide in automobiles," Popp said. "Ethernet is here to stay."
Lucas Mearian covers storage, disaster recovery and business continuity, financial services infrastructure and health care IT for Computerworld. Follow Lucas on Twitter at @lucasmearian, or subscribe to Lucas's RSS feed . His email address is email@example.com.
Read more about Emerging Technologies in Computerworld's Emerging Technologies Topic Center.
- Market Overview: Digital Customer Experience Delivery Platforms Forrester states that businesses today struggle to understand and use the tools necessary to create and manage unified, multichannel digital customer experiences across...
- The Growing Demand for Rich Media This white paper discusses how IBM Customer Experience Suite Rich Media Edition can automate rich media workflows, from collaborating with creative agencies and...
- Intelligent Imaging for Improved Banking Performance and Profitability A new generation of "Intelligent Imaging" solutions has emerged that is helping banks remove the burden of paper in legacy processes, like loan...
- Shifting Gears: The Value of Customer-Driven Quality in Manufacturing In today's competitive manufacturing market, the customer must be the center of the quality universe. This paper details how manufacturers can improve customer...
- Is SQL Server AlwaysOn really as powerful? Tips and Tricks from the field With the introduction of AlwaysOn, Windows Clustering Services is now more critical than ever.
- What Does it Take to Deliver a Superior Customer Experience? The Two Top-Rated Online Retailers, B&H Photo and Crutchfield Electronics, Share Their Secrets Discuss practical CX tools and service methods such as contact center agents and the use of realtime speech analytics to help contact center... All Emerging Technologies White Papers | Webcasts
Our new bimonthly Internet of Things newsletter helps you keep pace with the rapidly evolving technologies, trends and developments related to the IoT. Subscribe now and stay up to date!