电动车超速报警器设计

由于电动车超速引起的交通事故非常频繁，故研究超速报警器很有实际意义。本设计主要由微控制器、霍尔传感器、声光报警等电路构成。系统以单片机为核心，通过霍尔传感器A3144E测量转速。利用速度检测方法处理传感器采集的数据，得出电动车的移动速度，再通过比较后输出信号控制报警，从而实现超速报警。经论证，该设计具有精确度高，可靠性优良，稳定性好等优点，具备良好的工程价值。

Design of Electric Car Overspeed Alarm System

Owing to the frequent traffic accidents caused by electric car speeding, research on overspeed alarm is of great practical significance. This design is mainly composed by the microcontroller, hall sensors, and sound and light alarm circuit. The system, with the microcontroller as the core, measures speed through the hall sensor A3144E. By using speed detection algorithm to deal with data from the sensors, we can obtain the speed of the electric vehicle. After comparison, the output signal control alarms again, which is the overspeed alarm. The demonstration shows that the design is of high precision, strong reliability, good stability, and good engineering value.