Abstract: Described herein is method for the detection of seismic activity using a network of lights, and in particular, street lights (43) arranged over a number of streets (42). Each light includes a control module having the facility for both long- and short-distance communication, the control modules being grouped with other control modules and associated with a group controller to create a short-distance or mesh network. Each control module includes a sensor which is capable of detecting seismic activity and data relating to such activity may be transmitted to a central server via its group controller using long-distance communication. Even if the sensors are relatively inaccurate, the high number of such sensors present in the network makes it possible to detect and analyse the activity using geocoordinate information provided by the control modules at the server.

Abstract: Method for the operation and the expansion of a network of lights, each light in the network including a control module which is assigned to a group, each control module being in communication with a group controller as well as control modules in the same group. The network can be expanded by installing (19) new lights with their associated control modules, and each new control module scans (20) its environment and transmits environmental information to a central server where the environmental information is analysed and the new control modules are allocated (21) into groups. After allocation to a group in which control modules may be moved from one group to another or a new group is formed, the new control modules are available for normal operation. This process is repeated for each new light and associated control module.

Abstract: Described herein is a luminaire controller which is mountable within a luminaire head by means of fastening areas provided in a wall forming part of an upper housing part and/or a baseplate, the upper housing part and the baseplate forming a body for the luminaire controller. A flexible light guide is provided for transmitting light from the exterior of the luminaire head to a light sensor located within the controller. A lens may be provided at one end of the light guide at the wall of the luminaire head with the other end of the light guide being adjacent the light sensor. A terminal strip and an antenna jack are provided to which respective electrical connections can be made and an antenna can be connected by means of an antenna cable.

Abstract: Methods are provided for assessing potentially compromising situations of a utility company. One or more source displays of a site are accessed. A fly-out or data lensing is used to bring forward a portion of the source displays. The fly-out or data lensing is used to draw attention to a potentially compromising situation and direct the operator's attention without loosing perspective of a whole power system of the utility company.

Abstract: Methods and systems for sorting a dataset include partitioning the dataset into 2n partitions, where n is a number of available processors. A first quicksort is performed in parallel across pairs of partitions based on a pivot using a plurality of processors. A second quicksort is performed in parallel on unsorted elements within each partition based on the pivot, where the unsorted elements were left unsorted by the first quicksort. Misplaced elements from a left side of the dataset are swapped with misplaced elements from a right side of the dataset to produce a left dataset that has elements equal to or lower than the pivot and a right dataset that has elements equal to or higher than the pivot.

Abstract: Described herein is a luminaire controller for a luminaire in which dimming signals can be provided to control the operation of the luminaire. The controller also includes an energy measurement module connected to a mains supply, a sensor module, a power switch, a central processing module and a ZigBee transceiver module. The controller, in addition to providing dimming signals in accordance with ambient lighting conditions sensed by a photocell in the sensor module, provides efficient energy metering. In one embodiment, the luminaire controller is directly mountable on a luminaire for control thereof.

Abstract: Described herein is a dual-mode luminaire controller for a luminaire in which dimming signals can be provided to control the operation of the luminaire using signals in accordance with either ‘0-10V’ or DALI protocols. The controller includes a central processing module, an isolated supply in which both a DALI interface and a ‘0-10V’ interface are provided. The luminaire controller also includes a ZigBee transceiver module through which signals can be provided for selecting one of the interfaces in accordance with the operating protocol of the luminaire with which the luminaire controller is associated.

Abstract: Described herein is an autonomous distributed lighting network which comprises a plurality of luminaires for providing lighting levels in accordance with idle dimming profiles, at least one sensor for sensing ambient conditions, and a communications network. Luminaire nodes, sensor nodes, a timer node and a controller node are connectable to the communications network. Each luminaire node is associated with a luminaire and is operable for receiving broadcast messages from the communications network, the luminaire overriding its normal idle dimming profile in response to an appropriate broadcast message. Each sensor node is associated with at least one sensor device and transmits broadcast messages onto the communications network in accordance with events sensed by each related sensor device. A timer node, if present, provides time synchonisation for the luminaires within the network. In addition, a controller node is used for set up and maintenance of the network.

Abstract: Methods are provided for assessing reliability of a power system of a utility company. At least one main overview display is obtained. Violation markers are displayed on the one main overview display. A monitored elements tab is updated with a list of monitored elements.

Abstract: Methods are provided for creating dynamic lists from selected areas of a power system of a utility company. The utility company has an energy management system with a control panel. The energy management system is used to access one or more source displays of a site. Rubber-banding or lassoing is used to create selected areas from at least a portion of the source displays. Lists are created dynamically. Operator defined information is displayed for each element type in a list of network elements from the selected areas that have been rubber-banded or lassoed.

Abstract: A lighting system is disclosed having a plurality of luminaires in which the energy usage of each luminaire can individually be metered using a luminaire controller having a metering circuit.

Abstract: Described herein is a luminaire controller which is mountable within a luminaire head by means of fastening areas provided in a wall forming part of an upper housing part and/or a baseplate, the upper housing part and the baseplate forming a body for the luminaire controller. A flexible light guide is provided for transmitting light from the exterior of the luminaire head to a light sensor located within the controller. A lens may be provided at one end of the light guide at the wall of the luminaire head with the other end of the light guide being adjacent the light sensor. A terminal strip and an antenna jack are provided to which respective electrical connections can be made and an antenna can be connected by means of an antenna cable.

Abstract: An energy management system has a control center at a utility company and logic resources that provide a real time assessment of a potentially compromising situation that can effect the utility company. At least one situational dashboard panel is provided. The logic resources enable users to dynamically create their own dashboards from large overviews, regional schematic displays and station one-line displays that assist in assessing the potentially compromising situation of the utility company.

Abstract: Methods are provided for assessing reliability of a power system of a utility company. At least one main overview display is obtained. Violation markers are displayed on the one main overview display. A monitored elements tab is updated with a list of monitored elements.

Abstract: Methods are provided for creating dynamic lists from selected areas of a power system of a utility company. The utility company has an energy management system with a control panel. The energy management system is used to access one or more source displays of a site. Rubber-banding or lassoing is used to create selected areas from at least a portion of the source displays. Lists are dynamically created. Operator defined information is displayed for each element type in a list of network elements from the selected areas that have been rubber-banded or lassoed.

Abstract: Described herein is a dual-mode luminaire controller for a luminaire in which dimming signals can be provided to control the operation of the luminaire using signals in accordance with either ‘0-10V’ or DALI protocols. The controller includes a central processing module, an isolated supply in which both a DALI interface and a ‘0-10V’ interface are provided. The luminaire controller also includes a ZigBee transceiver module through which signals can be provided for selecting one of the interfaces in accordance with the operating protocol of the luminaire with which the luminaire controller is associated.

Abstract: A method for controlling a streetlight that is provided to illuminate a portion of the street, the method being performed by a controlling device having a memory accessible by a processor which controls a steering module which steering module is operatively coupled to the streetlight.

Abstract: Methods for sorting a data set. Data items each having a first portion and a second portion is stored. The first and second portions are stored separately and each has a separate set of keys. The first portion has a pointer indicating the second portion. At least some of the first set of keys for each data item is stored in a local memory of a first processor. At least one data stripe set is defined with one stripe within each bucket. An in-place partial bucket radix sort is performed on data items within one data stripe set with a first processor using an initial key. Incorrectly sorted data items are grouped into respective incorrect data item groups within each bucket. A radix sort is then performed using the initial radix on the incorrect data item groups. A first level sorted output is produced.

Abstract: Methods for sorting a data set. A data storage is divided into a plurality of buckets that is each associated with a respective key value. A plurality of stripes is identified in each bucket. At least one data stripe set is defined that has one stripe within each respective bucket. An in-place partial bucket radix sort is performed on data items contained within one data stripe set with a first processor using an initial radix. Incorrectly sorted data items are then grouped in each bucket into a respective incorrect data item group within each bucket. A radix sort is then performed using the initial radix on the items within the respective incorrect data item group. A first level sorted output is produced.

Abstract: An information processing system, computer readable storage medium, and method for accelerated radix sort processing of data elements in an array in memory. The information processing system stores an array of data elements in a buffer memory in an application specific integrated circuit radix sort accelerator. The array has a head end and a tail end. The system radix sort processing, with a head processor, data elements starting at the head end of the array and progressively advancing radix sort processing data elements toward the tail end of the array. The system radix sort processing, with a tail processor, data elements starting at the tail end of the array and progressively advancing radix sort processing data elements toward the head end of the array, the tail processor radix sort processing data elements in the array contemporaneously with the head processor radix sort processing data elements in the array.