Campus class grouping broadcasting system based on mobile network loudspeaker box

The utility model discloses a campus class broadcasting system based on mobile network sound boxes, which is characterized in that the system comprises attendance equipment, a server, mobile application equipment and at least one mobile network sound box arranged in different classes, and the attendance equipment, the mobile application equipment and the mobile network sound boxes are all in wireless communication connection with the server. The wireless communication connection is established based on a wide area network; the attendance checking device is arranged at a campus entrance and exit and comprises a controller and a sign-in panel electrically connected with the controller, the sign-in panel is arranged on a shell of the attendance checking device and used for collecting sign-in personnel information, and the controller is used for uploading the sign-in personnel information to the server; the mobile application equipment is used for uploading notification information to the server; the server is us