Traffic Technology Today.com
Subscribe to Traffic Technology
Subscribe to Traffic Technology
   Sort by: relevance most recent
  

NEWS >>

Q-Free provides the communications software and antennae for CVIS project

Electronic toll collection and traffic surveillance systems supplier, Q-Free, has provided the second-generation antennae, touchscreen and communications architecture for the CVIS project, co-funded by the EU and managed by ERTICO-ITS Europe. Q-Free is an active member of the Cooperative Vehicle-Infrastructure Systems (CVIS) project consortium, which is designing, developing and testing the technologies needed to allow cars to communicate with each other and with the nearby roadside infrastructure. CVIS technologies and applications are now moving out of the laboratory and onto the road, including ‘real-world’ testing using 5.9GHz wireless LAN and cellular 3G communication media.

The latest platform, CVIS 2.0, presented some new challenges for Q-Free’s developers, who had to design a power- and space-efficient rooftop antenna unit containing five individual antennae. These are for dedicated short-range communications (DSRC), wireless channels specifically designed for automotive use, GPS, broadband GSM/UMTS antenna, named CALM 2G/3G, and two broadband WLAN antennae, named CALM M5, to provide on- and off-road Wi-Fi connections.

The Q-Free design team made major improvements to the previous vehicle communications system, which consumed too much power and required a cumbersome cable that measured about 5cm (2 in) wide. They eliminated discrete wiring for each radio type by turning the platform into a router with five output channels (DSRC, GPS, GSM, and two CALM M5), all requiring real-time processing. “We are able to reduce the cabling complexity as the Intel Atom processor satisfies the network processing and low-latency requirements of a complex router,” explains Knut Evensen of Q-Free. The CVIS communications architecture is an open platform and the basic core software and middleware run on Linux.

Left: Intelligent Co-operative Systems that are based on vehicle-to-vehicle and vehicle (V2V) and vehicle to infrastructure (V2I) communications hold the promise of great improvements both in the efficiency of the transport systems and in the safety of all road users

CVIS is designed for vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications based on the five in-vehicle radios. Vehicles communicate with each other via a DSRC channel, sharing information on vehicle speed and proximity. They communicate with the transportation infrastructure, such as gas stations and toll booths, using the infrared link. Drivers can monitor their location using GPS, make phone calls over UMTS and connect to the internet with CALM M5. Evensen adds, “This architecture improves the quality and reliability of information available to drivers about their immediate environment and other vehicles and enables new commercial and consumer services.”

 

October 22, 2009

Email


RECEIVE THE
LATEST NEWS


Your email address:



Monthly Poll >>

In the US, what percentage of crashes happen at intersections?

MAGAZINE >>

Read latest issueNEW DIGITAL EDITION:

The August/September 2018 issue of Traffic Technology International is now online.

Click here to read digital version
Click here to subscribe

Read now >>

INTERTRAFFIC WORLD >>

Read latest issueNEW DIGITAL EDITION:

Intertraffic World 2018 showcase is now online.


Click here to read digital version
Click here to subscribe

Read now >>

TOLLTRANS >>

Read latest issueNEW DIGITAL EDITION:

Tolltrans 2018 is now online.



Click here to read digital version
Click here to subscribe

Read now >>