After RFID gates are installed in school textbooks, students can attach RFID tags to their belongings such as bags to provide automatic attendance management and safety management during school visit Install RFID reader'IDRO900F' at each elementary school gate, distribute RFID tags and attach them to students' bags, so that the information of the tags automatically recognized when going to school is sent to parents in real time by SMS to inform them whether they are going to school safely. Through this, it effectively manages the safety of students and provides differentiated services to parents.