| 摘要 |
<p>PURPOSE:To analyze various characteristics of driving skill of a driver, responsiveness of speed change of an automobile, etc., by graphically displaying a rotational speed signal, speed signal and a brake signal, obtained during drive running of the automobile, on the same time axis. CONSTITUTION:In an automobile 10, a video camera 12 for taking/recording a picture of a front scene is set up toward the front. A magnetic recording means for recording a rotational speed signal or the like of an engine 16 is constituted of a recorder 14 and a voice signal recording part of the camera 12. A rotational speed signal obtained from a pickup clip 20 as a rotational speed detecting means, brake signal obtained from a switch 23 as a brake pedal operation detecting means and a pulse-shaped speed signal obtained by arranging an optical sensor 28 as a speed detecting means in a tire house of the automobile are given to the recorder 14. These three signals are simultaneously recorded on a magnetic tape to graphically display reproduced three signals on the same time axis.</p> |
