Development Of Auto's Image Recorder

Now, the auto's recording can only record the information of text formatting which is short of intuitionistic capability. A recording the image of moving auto state instrument is developed in this task, which use the format of image to record the state of moving auto. Those image can judge the responsibility of the traffic accident and check the driver.Software and hardware of recording the image of moving auto state instrument are designed in this task. And performance of recording is tested. Primary job is introduced in the following.(l)Arithmetic of JPEG is researched and optimize based on ARM. The program of JPEG is devised, which suits the arm.(2)The protocol of SD and file system are researched. The FAT16 is implemented in SD. The file system is reduced and predigested based on the recording the image of moving auto state instrument.(3)The standard of ITU-R.601/605 and color space and conversion of color space, theory of image sensor are researched. The drive program of image sensor is designed based on the standard of ITU-R.601/605 and COMS chip.(4)The truss of arm and method of optimizing software and management of DMA are researched. Hardware of recording the image of moving auto state instrument are designed using this arm.(5)The performance of recording the image of moving auto stateinstrument is tested through experiment. The method is advanced which can improve the performance.