05-03-2013, 12:55 PM
Wireless Accident Information System Using GSM and GPS
Wireless Accident Information.pdf (Size: 64.35 KB / Downloads: 157)
Abstract:
This study discusses about designing a Smart Display and Control (SDC) which will monitor the
zone and maintains the specified speed in the zone levels, which runs on an embedded system. This system
includes three modules; automatic speed control module, accident detection and information sending module
and security enabling module. Automatic speed control module includes RF transmitter placed in specific
location and RF receiver in the vehicle. Accident detection module includes GSM and GPS technology.
Security enabling module includes sensory units which ensures the condition of seat belt and the driver. This
module includes alcohol sensor and eye sensor. The smart display and control is composed of two separate
units: Zone status Transmitter unit and Receiver (speed Display and Control) Unit.
INTRODUCTION
Nowadays accidents occur in all the places but major
accidents occur in school zone and college zone. Because
of high speeding of vehicle. The main objective of the
system is to provide security for the vehicle user and also
detects the accident if occurred and informs the respective
authority through wireless technologies. If any accident
occurs in highway or any other place. the accident
information system will get activated and message will be
transmitted to respective authority (Rajesh et al., 2010).
Statistical report says that the accident occur due to the
following reasons; drunk driver not using the seat belt
properly. This system will check all these things before
the vehicle starts. This automatic accident detection
system will overcome the above mentioned problems in
an effective way. Present system checks only the seat belt
condition and lacks much security constrains.
Design process:
In automatic speed control module RF
nodes are used, the RF module consists of RF transmitter
and RF receiver. The RF transmitter is used for the
transmission of data the a rate of 1 to 10 kbps it will
operate at a frequency range of 430 MHZ. RF transmitter
is placed in specific zone and RF receiver is placed in the
vehicle. The RF receiver also works with same frequency.
The transmitted data which is sent by RF transmitter is
received by the receiver and is validated. Accelerometer
sensor (vibration sensor) is connected to the port A, which
will provide analog value to the ADC port of controller.
The GSM is interfaced to PIC microcontroller.
Receiver design:
Figure 2 shows the receiver prototypic
design. The RF module consists of RF transmitter and RF
receiver. The RF module has an encoder in transmitter
and decoder in the receiver. The encoder is used for
encoding the parallel data for transmission while the
reception is decoded by decoder in the receiver. The RF
receiver is connected with PIC microcontroller. The RF
receiver will be always in listening state, if it receives any
signal of same frequency as of receiver, it will
automatically indicate the controller which in turn reduces
or limits the speed of the vehicle until the vehicle leaves
that particular zone. From this, the accident in school and
college zone will get reduced. The accelerometer is
connected with microcontroller and placed in vehicle.
CONCLUSION
This study solves the issues like automatic speed
control mechanism, accident detection and information
sending. From this we conclude that this system will
reduce the accidents and save the human lives. On the
whole this system proves to be very cost effective and
efficient. The experimentations and results prove that the
system is easily implementable in real time. This system
can also be extended by inducing automation concepts
like automatic driverless vehicle system, inter vehicular
communication etc.