Design And Research On The Soft Of Vehcile Night Vision System Base On ADI-BF561

Driving a vehicle at night or when rain and snow, the driver’s line of sight will be a relatively large impact, particularly at higher speeds, serious harm to driving safety.Data show that 60% of accidents are happening in this case. Therefore, this article focuses on the field of active safety in the car’s night vision system has an important position, a detailed analysis of the current situation and development trend of domestic and night vision technology. The active infrared night vision imaging of the basic principles and characteristics of active-infrared night vision system presents an ADI BF561 development of automobile-based authentication method describes the test hardware and software design and implementation of the system, the system can at night By driving or adverse weather conditions, on the driver’s vision and improved play a secondary role, so that between the vehicle in the area of safe and effective driver of the vehicle equipped with night-vision system, compared with conventional vehicles, the driver can be observed in advance the road to possible danger ahead, take timely and effective measures to avoid, motorists become more secure. So it has important theoretical and practical value of the research night vision systems.The main works include:1 Automotive night vision systems work on the principle of learning and analysis.According to the different works, car night vision system can be divided into active infrared night vision systems and passive infrared night vision systems, as well as the recent rise of shimmer technology, laser technology, at home and abroad on the basis of extensive literature review, a clear night need to implement the functions depending on the system, as well as performance requirements, complete automotive night vision system design and demonstration program herein programming. While completing detailed work program on technology used in the route.2 The system hardware architecture and hardware design analysis parameters,including video processor, infrared light, cameras critical components. The system selects ADI dual-core digital signal processor ADSP-BF561 processor core as a video.And completed select the video processor peripheral circuit design, infrared light source and the camera.3 The key issues of the system software design focus needs to be addressed,including image acquisition, through image enhancement, opposite light suppression,integrated application filtering noise and other image processing technology, the collected image processing, and real-time conversion, final output video. Currently there are many image enhancement algorithms, such as the classic histogram equalization, histogram specification, grayscale variation method, gradient method, in recent years, there are many new methods, such as wavelet method, genetic algorithms,fuzzy logic and other methods. For this purpose various types of image processing algorithms to collect and organize, and complete simulation comparison of several typical algorithms analysis.4 Complete the detailed design of automotive night vision system software architecture design and various modules. Including the clock, SCI, CAN, video input and output modules, algorithms, software design module.