Abstract: A switch device includes: a resettable switching apparatus, the resettable switching apparatus is configured control an electrical connection between a first electrical feeder of an electrical distribution network and a load; and a controller configured to: cause a test signal to be provided to the first electrical feeder; determine, after a test signal is provided to the first electrical feeder, whether the electrical distribution network has a radial structure; and if the electrical distribution network has a radial structure, open the resettable switching apparatus to disconnect the load from the first electrical feeder of the electrical distribution network. The electrical distribution network receives alternating current (AC) electrical power from at least two independent AC power sources.

Abstract: A switch device includes: a resettable switching apparatus, the resettable switching apparatus is configured control an electrical connection between a first electrical feeder of an electrical distribution network and a load; and a controller configured to: cause a test signal to be provided to the first electrical feeder; determine, after a test signal is provided to the first electrical feeder, whether the electrical distribution network has a radial structure; and if the electrical distribution network has a radial structure, open the resettable switching apparatus to disconnect the load from the first electrical feeder of the electrical distribution network.

Abstract: A network protector includes a resettable switching apparatus configured to electrically connect to a low-voltage feeder of a secondary distribution network; a switch control configured to control a state of the resettable switching apparatus to thereby determine whether electrical current flows through the switching apparatus; and a controller configured to: determine whether a fault condition exists; and if a fault condition does not exist, allow electrical power to flow through the resettable switching apparatus in any direction.

Abstract: A network protector includes: a first resettable switching apparatus configured to control an electrical connection between a distribution transformer and a first electrical feeder of a secondary electrical distribution network; a first communications interface; and a first controller configured to: determine a direction of power flow in the first electrical feeder; cause the first communications interface to provide a first indication of the direction of power flow in the first electrical feeder to a second network protector; and receive a second indication from the second network protector. The second indication includes an indication of the direction of power flow in a second electrical feeder of the secondary electrical distribution network.

Abstract: A network protector includes: a resettable switching apparatus configured to control an electrical connection between a first distribution transformer and a first electrical feeder of a secondary electrical distribution network; a sensor apparatus configured to sense one or more properties of electrical power in the first electrical feeder; and a controller configured to: analyze one or more of the sensed properties of the electrical power in the first electrical feeder to determine whether an error condition exists in the secondary electrical distribution network; and open the resettable switching apparatus if an error condition exists.

Abstract: Although object surface or human face recognition systems have already achieved an impressive efficiency in recent years, the object surface or human face as well as object to object or person to person tracking task still remains challenging, especially under non-ideal conditions, as is common in driverless vehicles, surveillance or security based applications, particularly in unstructured environments. In this disclosure, data captured through artificial vision system, e.g. CCTV surveillance is analyzed identifying the object or person and object's or person's movements across the respective platform. Image regions are categorized based on the population density. The regions are subsequently decomposed adaptively into tree of image patches. Furthermore, the surfaces are later stored efficiently and retrieved as patches.

Abstract: Although object surface or human face recognition systems have already achieved an impressive efficiency in recent years, the object surface or human face as well as object to object or person to person tracking task still remains challenging, especially under non-ideal conditions, as is common in driverless vehicles, surveillance or security based applications, particularly in unstructured environments. In this disclosure, data captured through artificial vision system, e.g. CCTV surveillance is analyzed identifying the object or person and object's or person's movements across the respective platform. Image regions are categorized based on the population density. The regions are subsequently decomposed adaptively into tree of image patches. Furthermore, the surfaces are later stored efficiently and retrieved as patches.