SmartOpen

During unmanned management, users open the door with their smartphones. Administrators can open and close the door with their smartphones, and can keep the door open for a set amount of time based on specific days of the week. Furthermore, access can be restricted for smartphone users who detect problems. When the door is opened, a notification is sent to the administrator's smartphone. Administrators can manage user smartphone history through the app. Furthermore, no information other than the smartphone number is accessible.