A roll-up curtain assembly having an elongated seat frame designed to b e mounted at one lateral side of an entrance of a private area. In the present invention, when a route of an original working RP is unreachable, a first node receives a bootstrap message sent by a BSR, where Holdtime of the original working RP carried in the bootstrap message is 0; and the first node disables the original working RP and enables a candidate RP as a new working RP according to the bootstrap message. The server may be configured with some or all of a set of domain services objects, but such objects may be stored in a read only format. A cam follower assembly on the pad shaft is engageable with a pad cam for controlling movement of the transfer pads. A controller is configured to be activated when the charger starts charging in an ignition off state of the vehicle and blocks a high voltage system of the vehicle when it is determined that the vehicle receives a shock from outside the vehicle by using positional information transferred from a motor position sensor of a driving motor.