The purpose of grouping code into modules is lowering the overall complexity of the solution. If done properly, it’s easier to reason about an application composed out of modules without being overwhelmed by details. One of the means that lead to this goal is assigning responsibilities. Each module gets one or more responsibilities from the set of responsibilities of the whole application and hides in itself the way the responsibility is fulfilled.
车上的传感器各有专长。摄像头是被动感知,像人类的眼睛,看色彩和轮廓很准,但遇到强光或者黑夜容易抓瞎。毫米波雷达和激光雷达属于主动感知,自己发射电磁波去探测。毫米波雷达的波长较长,能够轻易穿透雨、雾和沙尘,测距和测速是一把好手,可惜难以描绘物体的精细边缘。
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