Wireless Rash Driving Detection

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Wireless Rash Driving Detection
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Wireless Rash Driving Detection
Introduction

• To detect rash driving on highways and to alert
  the traffic authorities wirelessly the speed
  details and any speed violation. Accidents due to
  rash driving on highways are on the rise and
  people are losing their lives because of others
  mistakes. In the present system, to detect rash
  driving the police has to use a handheld radar
  gun and then aim at the vehicle to record its
  speed.
• If the speed of the vehicle exceeds the speed
  limit, nearest police station is informed to stop
  the speeding vehicle. This is an ineffective
  process as after detecting one has to inform the
  same and a lot of time is wasted.

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Wireless Rash Driving Detection
Block Diagram Of Transmitter
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Wireless Rash Driving Detection
Block Diagram Of Receiver
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Wireless Rash Driving Detection
Hardware Requirements

• Transformer
• Diodes
• Capacitors
• Resistors
• LEDs
• IR
• photodiode
• Transistor
• LCD
• Buzzer
• Relay
• Lamp
• 8051 series Microcontroller
• 2.4GHz Tx/Rx pair

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Wireless Rash Driving Detection
Power Supply
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Wireless Rash Driving Detection
Description Of Power Supply

• The circuit uses standard power supply comprising
  of a step-down transformer from 230v to 12v and 4
  diodes forming a Bridge Rectifier that delivers
  pulsating dc which is then filtered by an
  electrolytic capacitor of about 470microf to
  100microF.
• The filtered dc being un regulated IC LM7805 is
  used to get 5v constant at its pin no 3
  irrespective of input dc varying from 9v to 14v.
• The regulated 5volts dc is further filtered by a
  small electrolytic capacitor of 10 micro f for
  any noise so generated by the circuit.
• One LED is connected of this 5v point in series
  with a resistor of 330ohms to the ground i.e.
  negative voltage to indicate 5v power supply
  availability.

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Wireless Rash Driving Detection
Internal Structure Of a Microcontroller -
AT89S52/51
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Wireless Rash Driving Detection
Photo Diode

• A photodiode is a type of photo detector capable
  of converting light into either current or
  voltage, depending upon the mode of operation.
• Photodiodes are similar to regular semiconductor
  diodes except that they may be either exposed (to
  detect vacuum UV or X-rays) or packaged with a
  window or optical fibre connection to allow light
  to reach the sensitive part of the device.

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Wireless Rash Driving Detection
Liquid Crystal Display (LCD)

• Most common LCDs connected to the
  microcontrollers are 16x2 and 20x2 displays.
• This means 16 characters per line by 2 lines and
  20 characters per line by 2 lines, respectively.
• The standard is referred to as HD44780U, which
  refers to the controller chip which receives data
  from an external source (and communicates
  directly with the LCD.

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Wireless Rash Driving Detection
LCD Background

• If an 8-bit data bus is used the LCD will
  require 11 data lines (3 control lines plus the 8
  lines for the data bus).
• The three control lines are referred to as EN,
  RS, and RW.
• ENEnable (used to tell the LCD that you are
  sending it data).
• RSRegister Select (When RS is low (0), data is
  treated as a command).
• (When RS
  is High(1), data being sent is text data ).
• R/WRead/Write (When RW is low (0), the data
  written to the LCD).
• (When RW
  is High(1), the data reading to the LCD).

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Wireless Rash Driving Detection
Light Emitting Diode (LED)

• LEDs are semiconductor devices are made out of
  silicon. When current passes through the LED, it
  emits photons as a by product.
• Normal light bulbs produce light by heating a
  metal filament until its white hot.
• LEDs present many advantages over traditional
  light sources including lower energy consumption,
  longer lifetime, improved robustness, smaller
  size and faster switching

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Wireless Rash Driving Detection
Buzzer

• Piezo Buzzer
• This buzzer is an piezo type audio signalling
  device, which has a piezo element and a
  oscillating circuit inside which oscillates the
  piezo brass base plate, which when given voltage
  difference produces sound of a predefined
  frequency.
• Features
• These high reliability piezo buzzers are
  applicable to general electronics equipment.
  Compact, pin terminal type Piezo buzzer with 4
  KHz output.
• Pin type terminal construction enables direct
  mounting onto printed circuit boards.

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Wireless Rash Driving Detection
Working Principle

• IR sensors to detect the presence of a vehicle.
• A set point consists of a pair of sensors
  comprising of an IR transmitter and an IR
  receiver, each of which are installed on either
  sides of the road.
• Whenever IR rays are interrupted by a vehicle
  during first sensor the count up timer is
  started.
• When the other IR sensor senses the presence of
  vehicle, the count up timer is stopped.
• The speed limit set by the device is kept at the
  very location depending upon the traffic.

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Wireless Rash Driving Detection
Working Principle

• The time taken by the vehicle to travel from one
  set point to the other is calculated by a
  microcontroller program.
• Based on that time it then calculates the speed.
• The Seven segment display is used to display the
  speed of the vehicle.
• If the vehicle crosses the speed limit, a buzzer
  sounds alerting the police both at the location
  and wirelessly at the control room.
• The microcontroller is used to monitor the all
  control operations needed.

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Wireless Rash Driving Detection
Advantage

• They reduce the risk of accidents.
• It is easy to implement.
• It reduces the effort of many men.

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Wireless Rash Driving Detection
Disadvantages

• Sometimes the circuit got failure and causes
  various problems

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Wireless Rash Driving Detection
Applications

• It uses in highways to avert accidents.
• It alert traffic authorities about the speed of
  vehicle.

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Wireless Rash Driving Detection
Conclusion

• The speed checker for highways?is an emerging
  field and there is a huge scope for research and
  development. Wireless Rash Driving Detection can
  be further advanced by using a CCTV camera in the
  circuit. Whenever any vehicle crosses speed
  limit, camera captures the image of number plate
  and through transport database finds the address
  of the owner and sends fine.

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