Based On The Android Platform Forward Vehicle Collision Warning Systems Research

Vehicle collision warning system is a part of the intelligent transportation system. Inter vehicle distance measurement is vehicle collision avoidance system key, the vehicle detection and recognition and intelligent early warning system is vehicle anti collision system an important part. This article first makes an analysis of the status quo at home and abroad; secondly, compared after the advantages and disadvantages of several vehicle detection and recognition technology and application are the characteristics of region of interest extraction method, to realize vehicle identification; then, using monocular vision measuring methods measured the actual distance between the two vehicles. Finally, on the basis of these modules, with the Android platform technology, developed a front vehicle warning system of mobile phone software. Intelligent early warning warning system is through the camera for image acquisition and processing and analysis, to the identification of the vehicle, the vehicle distance calculation. Through the early warning decision to ensure the safety of the car. Using communication and voice warning etc. to remind the driver, to avoid collision accidents, so as to ensure the safety of life and property.Proposed in this paper based on the Android platform mobile smart phone in front of the vehicle collision warning system, and the future intelligent vehicle collision avoidance system has practical application value. First of all. this article tells about the Android knowledge. Furthermore, based on the application of vehicle recognition algorithm on the Android platform, inter vehicle distance calculation will be calculated distance and has set a good vehicle warning distance are compared. Finally, software design of early warning system of package including alarm mode design and early warning system interface design. The main contents are as follows:1. Tell how based on Android application development method, and in this platform based on the design of the front vehicle anti collision warning system. First of all, it introduces the content and framework of the Android platform, Android application development environment to build; secondly, development platform and key technology of JNI & NDK technology and NDK cygwin tools, opencv library and SQLite database. At last, it expounds the components of the Android application.2 Android are discussed on the platform of software development based on. First, based on Sobel operator edge detection, AdaBoost classifier algorithm of vehicle recognition, and make the experimental analysis of the effect of the vehicle recognition rate; secondly, on the vehicle distance detecting method and the implementation, and make related ranging experiments, accuracy verification on distance between two vehicles; then, warning distance design, through the analysis of the various stages of the whole process of the safe braking distance, according to the different grades of safety distance, set the multilevel early warning system.3. The development of anti collision warning system software based on the Android platform, the front of the vehicle. The research includes video acquisition, vehicle detection, vehicle distance detecting, real-time communication, video real-time display and early warning function modules, and the integration of all the modules, design each module of the interface and implementation.Finally has carried on the test of each function module of the system. The test results show that the system can well realize the vehicle accurate recognition and higher accuracy of measurement of the distance between the vehicle and early warning of the risk of a vehicle.