Recommend freeway driving process, lower the head to glance at the
mobile phone short message, just a few seconds, car emergency brake system will
alarm automatically, in your view back to when the road ahead, is going to hit
the front of your car is slowing trucks tail.The terrifying thrilling scene is
just the beginning of 2012 the U.S. department of transportation and eight,
including ford, gm, carmakers together in California for the last six road test
adopted by the scene.

The test is the U.S. department of transportation for multiple
carmakers communication technology research and development of a new generation
of vehicle to the actual road test, the purpose is to verify the system can
reduce the number of traffic accidents, so as to save lives, improve traffic
conditions.Never crash cars according to the national highway traffic safety
administration survey report shows that 80% of the highway traffic accident was
due to the driver within three seconds before the accident of
negligence.Daimler-benz company of an experiment shows that if the warning
drivers, 0.5 seconds ahead of 60% of the accident can be avoided;If the driver
can get warning early 1.5 seconds and take steps, you can avoid 90% of the train
crash.Mentioned above of a new generation of vehicles communication technology
refers to the communication network WAVE (IEEE802.11 p), the professional
advanced technical terms actually not difficult to understand.WAVE is the full
name of WirelessAccessintheVehicularEnvironment, meaning for the realization of
the car environment for wireless access communication protocols, from IEEE
start naming protocol code we can see that the protocol has become the industry
standard, namely we often hear the "connected" at present.Any
technical production if there is no actual application scenarios are
meaningless, WAVE is not exceptional also, at present the technology at the
application level is mainly used for two main application field, one is V2V
(VehicletoVehicle) system, the car to car communication system, referred to as
"shop network, can realize high speed data exchange between the
vehicles.Another is V2X (VehicletoInfrastructure) system, namely the car on the
road infrastructure communication system, referred to as "car network, can
realize the vehicle with a specified wavelength standard of intelligent
transportation system (ITS) communication and bidirectional data exchange
between the side of the road infrastructure.In the V2V system, each car must
use an agreed upon standard way to broadcast the car to car communication of
information, but the specific information display method is not restricted,
this gives the carmakers big play space.The system design is an art, to
participate in the V2V system research and development and the road test of the
eight major car manufacturers in this aspect is also demonstrated.For example,
when you are ready to across a crossroads, just have a car want from you on the
right side of the overtaking, acura TL model will display in the upper part of
the odometer yellow message;Ford developed system will be in your windshield
from left to right across the red light to prompt, at the same time in order to
make sure that you can get the reminder, your seat will be shaking from left to
right to occur.Practical tests show that the most effective strategy is to
sound an alarm and touch alerts, the two together the most reasonable, and
widely used.Due to drivers' visual in the process of driving on the road ahead,
has been receiving a lot of information, and the burden of the auditory system
and the sense of touch is lighter, so the driver's response to vibration or
brake recording than the dashboard light prompt reaction is more sensitive.In
these tests, without exception, all carmakers designed system is to use sound
as the emergency alarm, such as the crash of the alarm.While other, less
important reminder, like a car was coming from another lane to accelerate
information usually adopt visual reminder that display on the dashboard, or
windshield rearview mirror.Exciting is that with the completion of the test,
the U.S. department of transportation decided to next stage six cities in the
United States for a whole year field pilot.Nearly hundreds of thousands of
cars, trucks and buses will be assembled V2V system.Through the experimental
results, the United States department of transportation decided whether
compulsory automobile manufacturers in recent years in 2013 for all new
installation V2V communications systems.If the government is making car makers
began to install V2V system on all cars, so the first using the technology of
automobile is expected to hit the market sometime around 2018.According to
general motors, says V2V system will cost about $208 (article source: bvsion)