Design Of Vehicle Theft-against System Based On ARM

With the rapid development of computer electronic technology, a wide variety of car alarm systems appearing on the market. This papers uses an ARM processor design a car alarm system for the people who stolen cars by copy the key of the cars. This system consists of face recognition systems, GSM network, stepping motor and ARM control system.The Main content of this papers as follows:(1).Hardware system for the master plan, according to the design on the ARM Development Board, select USB video camera,GSM module and Stepping Motor, then using Altium designer circuit design software complete interface circuit design.(2).Transplant the Linux OS on Embedded system. After study the Principle of Linux OS on the embedded system, design a cross compilation environment. Analysis of the system boot process,then complete the transplantation of bootloader, use the busybox tool to build a cramfs filesystem, and complete the Linux kernel compilation and transplantation.(3).Design software for GSM and USB camera. First analysis of the kernel driver framework, and then based on the architecture, hardware reference to the corresponding data sheet, to achieve a USB camera, GSM device driver loading; Video4Linux modules provided by Linux to complete the code of image acquisition;complete the preparation of short messaging program by the Siemens TC35 GSM module provides the AT commands; and complete the control of stepper motor.(4).Research the face recognition algorithm. Firstly, introduct the face recognition technology, the image enhancement and normalization, use the wavelet theory and skin color segmentationd for face detection and location, then principal component analysis (PCA) algorithm for human face image feature extraction, and finally use the nearest distance classifier, feature matching for face recognition. Completed the face recognition program by uses cross-platform Opencv library which provide by Intel Verify the accuracy of face recognition by the method of experimental.This system of innovation is use of face recognition identifying current driver identity, Through the mobile phone interact with arm controller starts to prevent stealing cars, then summary the paper, give the suggestion for deficiencies in papers.