According to the World health organization, an estimated 1.24 million deaths occurred in 2010 due to road traffic injuries. In India 1,42,000 people died in road accidents in 2011 as per the data available in Ministry of road transport.
In the first step the
communication system will be developed so that a vehicle will be
sending information through a wireless network to each other about
what they are doing. The data so transmitted will be speed,
direction, location, braking etc. 10 times in a second. It will use a
dedicated short range Wi-Fi type communication network with a range
of about 300 meters.
The computers on board
in car will calculate whether there is a threat and will send warning
signal to the driver. For example, when a driver wants to change the
lane, he might get a warning signal that another car is fast
approaching the same lane. If such a system was available, the
accident that killed BJP leader Gopi Nath Munde, might have avoided.
To enable vehicle communication, a wireless gateway,
also known as the Communication Unit (CU), is introduced in the
in-vehicle network. The gateway enables Vehicle-to-Infrastructure
(V2I) and Vehicle-to-Vehicle (V2V) communication, collectively known
asVehicle-to-X (V2X) communication.
A few different technologies exists for V2I
communication. First, roads will be equipped with road-side unit
(RSU) by means of which vehicles will establish communication to the
infrastructure using the WAVE-protocol. These RSUs provide services
to the vehicles, including general Internet access. The second
possibility is to use ordinary Wi-Fi technology where wireless access
points are used, e.g. open access points in cities. This may prove
to be more economical.
(The author is formerly
a professor at Department of Electrical Engineering, AMU, Aligarh. He
can be reached at firstname.lastname@example.org)