Number Plate Detector

Detects and stores number plate in real time

Overview

To design a prototype which could improve the flow of traffic and safety in universities, residential societies and industries, for maintaining traffic record for security purposes.

Aim

Vehicle information logging in real time using embedded system and storing all the data in the system.

Components

Raspberry-Pi 3B+, Logitech Web Camera, IR Sensors, Connecting wires, Servo Motor, Buzzer etc.

Applications:

  1. Automate the monitoring pipeline and help in cost cutting.
  2. Identifying traffic rules breaker
  3. Highway speed checking
  4. Integrate all these cluster of systems.
  5. Automated warning system

Working

A servo consists of a Motor (DC or AC), a potentiometer, gear assembly and a controlling circuit. First of all we use gear assembly to reduce RPM and to increase torque of motor. Say at initial position of servo motor shaft, the position of the potentiometer knob is such that there is no electrical signal generated at the output port of the potentiometer. Now an electrical signal is given to another input terminal of the error detector amplifier. Now difference between these two signals, one comes from potentiometer and another comes from other source, will be processed in feedback mechanism and output will be provided in term of error signal. This error signal acts as the input for motor and motor starts rotating. Now motor shaft is connected with potentiometer and as motor rotates so the potentiometer and it will generate a signal. So as the potentiometer angular position changes, its output feedback signal changes. After sometime the position of potentiometer reaches at a position that the output of potentiometer is same as external signal provided. At this condition, there will be no output signal from the amplifier to the motor input as there is no difference between external applied signal and the signal generated at potentiometer, and in this situation motor stops rotating

References

  1. M. Everingham, L. Van Gool, C. K. Williams, J. Winn, and A. Zisserman. The pascal visual object classes (voc) challenge. International journal of computer vision, 88(2):303–338, 2010.
  2. O. Russakovsky, L.-J. Li, and L. Fei-Fei. Best of both worlds: human-machine collaboration for object annotation. In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, pages 2121–2131, 2015.
  3. C. Szegedy, S. Ioffe, V. Vanhoucke, and A. A. Alemi. Inception-v4, inception-resnet and the impact of residual connections on learning. 2017.
  4. I. Krasin, T. Duerig, N. Alldrin, V. Gomes, A. Gupta, C. Sun, G. Chechik, D. Cai, Z. Feng, D. Narayanan, and K. Murphy. Openimages: A public dataset for large-scale multi-label and multi-class image classification. Dataset available from https://github.com/openimages, 2017.

Team Members

  1. Himanshu Patil
  2. Rishesh Agarwal
  3. Rohit Lal