Abstract: A door-lock control method adopted by a door-lock device and a computer program is present. The method comprises: broadcasting a connecting message in a WPAN at the door-lock device; controlling a mobile device to establish a connection with the door-lock device via the WPAN when receiving the connecting message at the computer program; sending an unlocking command via the connection at the computer; and unlocking a door-lock thereon when receiving the unlocking command at the door-lock device. This application can omit the operations which the householder needs to do manually on the mobile device or the door-lock device, and effectively improves the convenience of use and reduces the waiting time of completing unlocking the door-lock.

Abstract: A remote access control system comprising a remote host connected to a mobile device, a proximity sensor doorbell, a door lock device and a gateway device is provided. The proximity sensor doorbell triggers a doorbell signal when sensing a finger of a visitor approaches. The gateway device sends a first notification message to the mobile device via the remote host when recognizing that a captured monitoring video comprises image of the visitor, sends a second notification message to the mobile device via the remote host when receiving the doorbell signal, and controls the door lock device to unlock when receiving an unlocking message from the mobile device. This system facilitates the householder to control the entry remotely and effectively reduces the probability of doorbell failing.

Abstract: A door-lock control method adopted by a door-lock device and a computer program is present. The method comprises: broadcasting a connecting message in a WPAN at the door-lock device; controlling a mobile device to establish a connection with the door-lock device via the WPAN when receiving the connecting message at the computer program; sending an unlocking command via the connection at the computer; and unlocking a door-lock thereon when receiving the unlocking command at the door-lock device. This application can omit the operations which the householder needs to do manually on the mobile device or the door-lock device, and effectively improves the convenience of use and reduces the waiting time of completing unlocking the door-lock.

Abstract: A doorbell-triggering method first controls the doorbell trigger to switch to a hardware shutdown status when detecting the doorbell trigger is idle; controls the doorbell trigger to switch to an operating booting status to connect to a relay host when receiving a doorbell signal from a button unit of the doorbell trigger under the hardware shutdown status; sends a visiting message to a remote electronic device via the relay host; receives a return image/text message from the relay host and displaying the return image/text message on a display unit of the doorbell trigger. The present disclosed example can substantially reduce the power consumption and the requirement of network bandwidth via automatically switching to the hardware shutdown status when idle and using the image/text message having smaller data size to respond the visitor.

Abstract: A remote access control system comprising a remote host connected to a mobile device, a proximity sensor doorbell, a door lock device and a gateway device is provided. The proximity sensor doorbell triggers a doorbell signal when sensing a finger of a visitor approaches. The gateway device sends a first notification message to the mobile device via the remote host when recognizing that a captured monitoring video comprises image of the visitor, sends a second notification message to the mobile device via the remote host when receiving the doorbell signal, and controls the door lock device to unlock when receiving an unlocking message from the mobile device. This system facilitates the householder to control the entry remotely and effectively reduces the probability of doorbell failing.

Abstract: A network service providing system with high reliability includes a cloud service platform and an agent system. The cloud service platform is connected to the Internet and is for providing a network service. The agent system is connected to a network linked with the Internet. The agent system includes a network service server, a login module and a data synchronization module. The network service server is for providing the network service. The login module receives the inputted identification information from a user device and directs the user device to establish a connection with the cloud service platform or the network service server. The data synchronization module is for synchronizing between a service data stored in the cloud service platform and the network service server. The aforementioned network providing system may avoid the single failure of point problem thereby enhancing the availability and usability of the network service.