| 摘要 |
<p>The present invention relates to an automotive speed indicator in which the number of LED light that is turned on of a plurality of LED light disposed on a front roof of the vehicle represents is used to indicate a traveling speed to determine the speed of the vehicle traveling therearound, thereby allowing the user to pay attention to safety when the lane is changed. A controller (12) is connected to a vehicle speed sensor (10) for detecting a traveling speed of the vehicle, and LED lights (L1 to L4) are connected to an output terminal of the controller (12) by using first to fourth relay driving parts (14 to 20) as a medium. Here, the controller (12) may be connected to the LED lights L1 to L4 so that the the numbers of the first to fourth relay driving parts switched according to the size of the vehicle speed signal detected through the vehicle sensor (10) are different from each other to control the number of the LED light that is turned on.</p> |
