75results about How to "Reduce control delay" patented technology

The invention belongs to the technical field of spatial information, and discloses a hierarchical network operation and maintenance and resource management and control system and method for a giant satellite constellation, and the system comprises a service layer, a global organization layer, a local coordination layer, and a resource layer. The business layer serves as input to drive the operation of the whole system; the global organization layer realizes measurement, operation and control integrated control and decision-making of the whole network; the local coordination layer realizes local management and control decision and management and control slice generation; and the resource layer provides physical resources and physical equipment and realizes resource virtualization. According to the method, the local coordination layer controllers are arranged on the high-orbit satellites or the medium-orbit satellites, so that the arrangement of the local coordination layer controllers is not limited by global station arrangement, the management and control of a large-scale low-orbit satellite constellation are realized, and an approximate calculation formula of the number of the local coordination layer controllers under the scale of the low-orbit satellite constellation is given; and a theoretical basis is provided for satellite constellation system design and controller layout.

The invention provides a method and a device for load balancing of a controller, which is applied to the SDN (Software Defined Network) technology field. The method for load balancing of a controller includes: the controller detects the load information of its own; according to the local load information list, the controller judges whether itself is the most heavily overloaded controller; if the controller is judged as the most heavily overloaded controller, the controller utilizes the load balancing strategy of its own to transmit a load transfer request to the target controller; the controller receives the response of executing switch transfer made by the target controller according to the load transfer request; when the response is judged as permitting the transfer, the controller transfers its own load to the target controller. The invention shortens the time used to realize the load balancing of the controller, and improves the efficiency of load balancing.

The embodiment of the invention discloses a control method and a portable terminal for a configurable peripheral device. The portable terminal comprises at least two subsystems and at least one configurable peripheral device, when obtaining a right of controlling the configurable peripheral device at first time, a first subsystem of the two subsystems initializes the configurable peripheral device and uses the configurable peripheral device according to distributive first configuration information. The method comprises the following steps of backing up the first configuration information, restoring configuration of the configurable peripheral device according to the first configuration information when the right of controlling the configurable peripheral device is switched from a second subsystem to the first subsystem so as to enable the first subsystem to use the configurable peripheral device. The control method and the portable terminal for the configurable peripheral device just need to implement initialization when the subsystem obtains the right of control at first time, configuration information backed up in the process of initialization is used for configuration of the configurable peripheral device in the following time, therefore control time delay of a system is shortened, and occupation of system resources is reduced.