International Conference’14On Electrical, Electronics, Computer Science and Mechanical Engineering – ICEECSME

Research paper on Intelligent Wireless Video Monitoring System Using Computer (EECSMEBNGLR-23039-055) Department of Electronics and Communication Engineering

Nitte Meenakshi Institute of Technology Yelahanka, Bangalore- 64

 

Authors Kamal Lamichhane Kiran .M Avanee Bhat. M. V Ashwin Chapte

(B.tech Students, NMIT Bangalore)

Under the Guidance of Prasanna Paga Assoc. Professor, Dept of ECE,NMIT Bangalore 

INTRODUCTIONTo develop efficient wireless video monitoring system.

The principle of remote sensing is utilized in this project to detect the presence of any person who is near to the reference point i.e. restricted point within the zone.

A video camera collects the images from the reference point and the collected images will be transmitted to the monitor.

When a person comes nearer to the restricted point, the particular reference point energizes the intelligence system to rotate the video camera towards the particular reference point.

Why wireless video surveillanceCan be used to monitor remote

location.Can be used in locations where

wired infrastructure doesn’t exist.Less expensive than wired solutions.Video images can be transmitted

over a network

Research has predicted that wireless video surveillance

market will almost double up by 2017 globally

PROPOSED SYSTEMThe video surveillance unit is designed for the

portability and the widest possible viewing range.The unit consists of a stepper motor that drives the

camera towards the reference point automatically and a transmitter section which will transmit the images collected by the camera to a distant end.

The robotic action made by the stepper motor is attached to the camera, this allows surveillance of maximum area with just one single camera.

When the human body interrupts the transmitting signal, then the signal is reflected and this reflected signal is received by infrared receiving LED.

Block diagram showing the system

Reference points /sensing circuits

Complete circuit

Reference points /sensing circuits

Reference points /sensing circuits

PC

Transmitter

ReceiverAlarm

Hardware Requirements

1. Infrared transmitter and receiver2. Stepper motor3. Computer4. AM transmitter5. High resolution Video camera6. LEDs etc.

Software Requirements

1. Embedded C2. Keil u Vision3. IAR workbench4. Code Composer Studio

INFRARED SECTION

The infrared proximity detection system is designed for detecting the presence of a person who is inside the restricted zone within the range.

PNP transistor with modulating frequency of about 10kHz drives a high efficiency IR-LED.

The function of the detector circuit is to radiate the energy into space through IR-LED and detecting the echo signal reflected from an object.

Portion of the transmitted energy is intercepted by the target and re-radiated in multiple directions and this energy is collected by the receiving LEDs and is fed to the computer.

Working

When the computer receives the signal, it drives a stepper motor towards a particular reference point.

Sensing Circuit

STEPPER MOTOR AND COMPUTERThe computer plays a major role by identifying and

locating the interruption made by the human body.Based on this input the computer directs the

stepper motor control system to follow the obstruction.

All the software's required for the functioning of this module is developed using C language.

The computer also displays the video footage of the person moving in that particular region.

The function of each and every subsystem is developed, programmed and controlled by the computer.

If any obstruction, interrupts any of the predefined reference zones, the computer energizes the alarms followed by focusing the camera towards the interruption and records the proceeding.

Relay Circuit

Stepper motor ckt

TRANSMITTERThe output of the video camera which is pure

composite video signal and is fed to the AM transmitter.

AM transmitter consists of three sections:1. VHF Oscillator2. Modulator3. Final stage amplifier

Working

CIRCUIT FOR TRANSMITTER SECTION

ApplicationsIn Borders security In Highly sensible lab

In Military zones etc.

FUTURE WORKWe can implement the tracking algorithm to detect

multiple intrusions at a time.Image database of the potential intruders can be

included in the system and facial recognition algorithm can be implemented to match the intruders with the information in the image database.

As wireless video surveillance systems evolve, they will be integrated both with inputs from other types of sensing devices and also with the information about the space in which the system is operating thus providing a very rich mechanism for maintaining situation awareness.

CONCLUSIONA system design for wireless video

surveillance, including video capture with automatic camera control and data transmission is achieved through this project.

Wireless camera based surveillance systems transform video surveillance from a data acquisition tool to information and intelligence system.

Real time video analysis provides smart surveillance system with the ability to react to a real time activity.

REFERENCES R. Collins et al. (2000) “A system for video surveillance and monitoring,” VSAM

Final Report, Carnegie Mellon University, Pittsburgh, PA, Tech. Rep. CMU-RI-TR-00-12

R. T. Collins, A. J. Lipton, T. Canada, H. Fujiyoshi, D. Duggins, Y. Tsin, D. Tolliver, N. Enomoto, O. Hasegawa, P. Burt and L.Wixson (2000). A system for video surveillance and monitoring Carnegie Mellon University, Pittsburgh, PA, Tech. Rep., CMU-RI-TR-00-12.

E.M.S. Ulsubas and A.K. Katsaggelos, “A Resolution Adaptive Video Compression System” Intelligent Multimedia Communication: Techniques and Application, vol. 280/2010: Springer Verlag pp.167-194, 2010.

Cher-Shiung Tsai; Kun Shan Univ., Tainan, Ming-Yuan Guo, Chein-Hua Chang, Shu-Yin Jiang “A VHF Oscillator design based on BJT Active Load Differential Amplifier”.

Haydon motion solutions “Stepper motor theory” http://www.haydonkerk.com/Resources/StepperMotorThoery/tabid/192/Default.aspx

Bo Wang, Inst. Of Inf. Eng., Huanghe Sci. & Technology Coll., Zhengzhou, China, Liping Li, Chunyu Zhao “Design and implementation of a new infrared transmitter and receiver.”

QUERIES

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Thank you

Infrared working•High efficiency IR-LED is driven by PNP Transistor SK100 with a modulating frequency of about 10 KHz. Frequency is available from Pin 5 of LM 567 IC (versatile PLL tone decoder IC). The 47W resistor connected in series with the IR LED limits the IR-LED current.

•The radiation directed back towards the system is collected by the receiving LED causes to produce a high signal at Pin No.8 of LM567 IC. The output of the receiver is fed to the computer.

•When the computer receives a high signal from the reference area, the computer drives the stepper motor through the driving transistors and rotates the motor towards that particular reference point.

Transmitter working The transmitter circuit generates a continuous

frequency of 100MHz approximately, that is used to form a permanent link between the transmitter and receiver, and this is known as carrier frequency.

The output of video camera is fed to this carrier input as a modulating wave. This is a frequency modulated radio transmitter. The radiating power of the transmitter is less than 20mw, such that the range between transmitter and receiver can be less than 25 feet.

In the amplifier section 2 N 3866-NPN Transistor is used to amplify the input signal.

Stepper motor driver circuit

Complete circuit

Received signal at Detector