Abstract: A method to allow participation with multiple other players in a virtual reality (VR) board game includes steps of generating a board game scenario after a player with a mobile terminal logs in to a server and sending the VR scenario to the mobile terminal. The mobile terminal can transmit first and second signals, the first signal defining movement and track of a player piece being moved, and the second signal defining verbal expressions or commands by the player to trigger a preset event in the game. The first and second signals are analyzed and the player pieces in the VR scenario are moved accordingly. The method and system can also determine at least one player piece in the scenario that matches a condition for triggering a preset event or move in the VR game and make suggestions to the player accordingly.

Abstract: A method to allow participation with multiple other players in a virtual reality (VR) board game includes steps of generating a board game scenario after a player with a mobile terminal logs in to a server and sending the VR scenario to the mobile terminal. The mobile terminal can transmit first and second signals, the first signal defining movement and track of a player piece being moved, and the second signal defining verbal expressions or commands by the player to trigger a preset event in the game. The first and second signals are analyzed and the player pieces in the VR scenario are moved accordingly. The method and system can also determine at least one player piece in the scenario that matches a condition for triggering a preset event or move in the VR game and make suggestions to the player accordingly.

Abstract: A method for generating a matching key of a lock includes obtaining user information input by a user of a smart key, determining whether the user is an authorized user of the smart key, obtaining lock information of the lock, obtaining key information of the lock, and generating a matching key to unlock the lock. When the lock is an electronic lock, the smart key generates an electronic matching key. When the lock is a mechanical lock, the smart key generates a mechanical matching key.

Abstract: A method for generating a matching key of a lock includes obtaining user information input by a user of a smart key, determining whether the user is an authorized user of the smart key, obtaining lock information of the lock, obtaining key information of the lock, and generating a matching key to unlock the lock. When the lock is an electronic lock, the smart key generates an electronic matching key. When the lock is a mechanical lock, the smart key generates a mechanical matching key.

Abstract: An electrical connector for connection to a complementary electrical connector is disclosed. The electrical connector includes a housing having a concavity and a latch rotatably carried by the housing. The latch includes a rotary section having a first curved edge, a second curved edge, and a tab received that is received by the concavity. The latch further includes a lock extending from the rotary section for connection with the complementary electrical connector.

Abstract: An electrical connector for connection to a complementary electrical connector is disclosed. The electrical connector includes a housing having a concavity and a latch rotatably carried by the housing. The latch includes a rotary section having a first curved edge, a second curved edge, and a tab received that is received by the concavity. The latch further includes a lock extending from the rotary section for connection with the complementary electrical connector.