嵌入式车道跑偏告警系统设计

为提高汽车驾驶的安全性,减少高速公路上由于车道跑偏而造成的巨大损失,基于DSP计算和FPGA计算,构造出一套基于视觉的嵌入式车道跑偏告警系统.重点介绍了系统的框架结构以及硬件实现方式,详细研究并解决了视觉系统中大容量数据的传输、存储和处理而造成的带宽问题,采用FPGA内部构造FIFO及DSP上支持的PDT传输方式,加快总线上的数据传输,提高总线的利用率,满足系统的实时性要求.最后,基于构造的系统,设计了典型的视觉处理算法和应用于车道跑偏决策的软件算法,验证了系统的可行性.

Design of an Embedded Lane Departure Warning System(LDWS)

To improve the safety of driving,especially reduce the enormous loss due to the lane departure on the highway,a vision-based LDWS(Lane Departure Warning System) is introduced based on the DSP computing and FPGA logic computing.Much emphasis is laid on the architecture of the LDWS and its hardware implementation.The bandwidth problem caused by image data transportation,storage and processing is solved.In the end,some typical image processing algorithms are chosen for the LDWS to verify the feasibility of the...