Laser Detection Automotive Active Anti-collision Technology And Systems Research

With the rapid development of China's highway network, cars have become an everyday major means of transport. What can not be ignored is the car for social development, in order to provide a lot of people's lives but also the associated convenience an increasing number of traffic accidents traffic accidents every year the number of casualties, and caused direct economic loss of a linear upward trend. The vast majority of vehicles due to traffic accidents caused by collision, therefore, in order to reduce casualties caused by traffic accidents happen, we should try to prevent collisions from occurring.The subjects first carried out high-frequency components of high-precision laser ranging technology research, including comparison and set based on the threshold than the dual-channel time delay identification techniques, and digital phase-shifting transmission delay calculation circuit design techniques to ensure the laser ranging group of Parts can meet the application requirements; followed by a high degree of difference for multi-beam complex information extraction and target detection of automatic identification technology in order to accurately obtain the relevant objects in front of the vehicle information and carry out effective judgments; In addition, the level of conduct, including the laser beam adaptive adjustment and storage-type such as self-braking automation technology research; a number of key technologies in the above basis of the study, having completed a multi-dimensional information on laser-based detection discriminant vehicle active anti-collision system, development of an integrated machine, the system including the FPGA + DSP CPU as well as the implementing agencies, the central processing unit to extract the laser radar and the system to handle any last downhill, corners and other comprehensive information based on the relative speed of risk indicators such as discrimination, and related instructions sent to the implementing agencies, the executing agency to complete by the police, deceleration, braking and other actions to achieve the purpose of safe driving.At present, the system has passed through the field test, function and related indicators for fully meet the design requirements, and works stably and reliably.