An economical wireless network monitored scheme for camera based intrusion detection at unattended sites

Abstract

Unattended locations today require detection of any mal-intentional intrusion. Sensors of the Pyroelectric (PIR) orMicrowave reflecting (MW) types are commonly available for detecting intrusion by a human. In this paper, a digital video camera is interfaced to a computer, say a simple laptop, which has provision for wireless USB based Ethernet connection. The program developed monitors a site in view of the camera and positively detects an intrusion by video frame based evaluation. A novel and sensitive algorithm for detection of motion from video frames is based on integrating the pixel intensities in successive finite difference method over a set of circular and way contour paths in the field of view of the camera. The proposed method is very fast compared to area pixel methods thus far available. The detected intrusion and its location within the scene are instantly messaged through the wireless cellular network adaptor, such as the "Tata Photon" using a simple "Compaq" laptop. The image itself follows the detection. Thus, this method is cheaper than the expensive sensing devices based on MW or PIR.

Server Based Wireless Motion Detection System Using PIR Sensor

“…The server based automated type of system provides more security and can provide applicability at banks, offices and secure places where the access to a system should be maintained more secure. The system can also be used for many other critical applications requiring tamper free Identification of the person [3] [4]. The system here we are using a PIC 16F877A Microcontroller for which s and GSM modem are connected.…”