Bag. The university security system in Jinan is three shifts or one day off, and all of them need to be on duty under special circumstances. Because of the nature of work, security guards are guaranteed food and shelter. In the university, the security guard's job is to register the people who enter and leave the school, check the vehicles entering and leaving the school, maintain order after school, patrol the campus on weekdays, do a good job of public security around the campus, and safeguard the safety of teachers and students.