Description
Variable Vehicle speed limiter for Accident Avoidance using RF and Node MCU
OBJECTIVE:
- The main aim of this project is to recognize special zones of traffic such as school zones and control the vehicle accordingly
- Secondly, this project aims to establish communication with the vehicle behind to avoid collision using LiFi – Variable Vehicle speed limiter for Accident Avoidance
ABSTRACT:
Vehicle safety and the safety of passengers in vehicles is an important parameter. Most vehicles get into accidents because no proper safety measures are taken especially at curves and hairpin bends humps and any obstacles in front of the vehicle. This system can be used for the prevention of such a problem by indicating a pre-indication and also reducing the speed of vehicles by reducing the fuel rate of vehicles. As the action is in terms of fuel rate so the vehicle automatically goes to control and avoids accidents. At curves and hairpin bends the line of sight is not possible for the drivers so the special kind of transmitter which is tuned at a frequency of 433MHZ is mounted as these transmitters continuously radiate an RF signal for some particular area. As the vehicle come within this radiation the receiver in the vehicle gets activated. The transmitter used here is a coded transmitter that is encoded with an encoder. The encoder provides 4-bit binary data which is serially transmitted to the transmitter. This may cause accidents if executed without precautions, this can be done by sending this information to the car behind. This can be implemented using LiFi technology, LiFi need not be paired since it is a line of sight communication.
EXISTING SYSTEM:
Existing systems do not involve any such system or they are implemented using visual methods such as recognizing the road signs by capturing the image of the sign and recognizing it through image processing. This system is limited since the system is only activated and deactivated around the vicinity of the sign not possible to extend it up to a particular distance.
PROPOSED SYSTEM:
This system uses RF frequency for recognizing a particular road sign such as a school sign, if the school sign is recognized then the vehicle is automatically slowed down. The signboard will always transmit a particular key to any receiver this can be a car or any vehicle. When this is activated the car will communicate this information to the car behind it through LiFi technology so the second car would also slow down.
Variable Vehicle speed limiter for Accident Avoidance using RF and Node MCU
BLOCK DIAGRAM:
Car node 2(Rx):
HARDWARE
- Arduino Uno
- RF transmitter, receiver
- LCD
- DC motor
- LiFi module
SOFTWARE
- Arduino IDE
- Embedded C
REFERENCES
- Y.Chang., Chen, H., Chiang, F., H. Wang,(2010). Toward Real-Time Precise Point Positioning: Differential GPS Based on IGS Ultra Rapid Product, SICE Annual Conference, The Grand Hotel, Taipei, Taiwan August 18-21
- Asaad.M.J.Al-Hindawi, Ibraheem Talib, “Experimentally Evaluation of GPS/GSM Based System Design”, Journal of Electronic Systems Volume 2 Number 2 June 2012.
- Mandeep Singh, Kunal Maurya, Neelu Jain, “Real-Time Vehicle Tracking System using GSM and GPS Technology An Anti-theft Tracking System,” International Journal of Electronics and Computer Science Engineering.ISSN 22771956/V1N3-1103-1107.
- Viswaprakash Babu & Vikram Kulkarni, “embedded smart car security system on face detection’, special issue of IJCCT, ISSN(Online):2231-0371, ISSN(Print): 09757449, volume-3, issue-1.
- K.Karthick, V.Ramya, B.Palaniappan, “Embedded Controller for Vehicle In-Front Obstacle Detection and cabin Safety Alert System”, International Journal of Computer Science & Information Technology (IJCSIT) Vol 4, No 2, April 2012
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