校牌是学生身份的标志,可有的时候进学校,值日生要盯着校牌看半天才能确定学生的身份,真是麻烦。不过,有了我的智能校牌,一切问题都将迎刃而解。我发明的智能校牌,有一根与之配对的电子感应棒。每回入校的时候,值日生只要拿电子感应棒对着智能校牌一扫,如果没有发出刺耳的警报声,那就可以放行了。而且,智能校牌还可以和手机相互连接, School sign is a sign of student identity, but sometimes into the school, the value of daily life to stare at the school to see a long time to determine the identity of students, really troublesome. However, with my smart board, all problems will be solved. Smart card I invented, there is a matching electronic sensor stick. Every time you go to school, the value of daily as long as the electronic sensor stick to the smart school swept away, if not issued a harsh alarm, it can be released. Moreover, the smart card can also be interconnected with the phone,