最近,我在网上看到一则新闻,说的是某地一个骑助动车的男子因为停在前方的车辆突然开门,猝不及防撞上车门导致受伤。为了减少这类事故的发生,我设计了车门打开安全装置。我在车门把手上装了光线感应器,在车门外装了小灯和蜂鸣器。当乘客去拉门把手的时候,即触动感应器,车门外的灯和蜂鸣器就会闪烁,并提醒路人注意安全。不过,这时车门并不会打 Recently, I saw a piece of news on the Internet that a man riding a motor vehicle somewhere in a certain place suddenly opened the door because of a sudden stop in front of the vehicle, causing him to be hit by a crash. In order to reduce such accidents, I designed the door opening safety device. I installed a light sensor on the door handle and a small light and buzzer on the door. When the passenger pulls the handle of the door, it will touch the sensor, the lights outside the door and the buzzer will flash, and remind passersby to pay attention to safety. However, the door does not hit at this time