| 摘要 |
The present invention relates to a device and a method thereof to lock a screen once attendance is checked and, more specifically, to a device and a method, capable of automatically checking attendance through a portable terminal of a trainee of a corresponding training while at the same time locking the screen of the portable terminal when a user enters a training place and time for training approaches, and therefore, the present invention is capable of providing the reliability of attendance to officers of management institutions for training courses (for example, government training officers, company training officers, or college officers), moreover providing an environment in which the trainee is able to concentrate on the training. |
