Abstract:
A motion detector system includes the ability to detect motion through the use of a Doppler radar sensor or a combination of PIR sensors and a Doppler radar sensor. The system includes an outdoor light fixture having one or more lamps and a housing coupled to the outdoor light fixture. The housing includes a Doppler radar sensor and a microprocessor for analyzing the signals received by the Doppler radar sensor. Alternatively, the housing includes a combination of PIR sensors and a Doppler radar sensor and a microprocessor for analyzing the signals received from these sensors. The lamps in the light fixture are activated when either the PIR sensor or the Doppler radar sensor generates a signal indicating motion within the monitored area. Alternatively, the lamps can be activated when either the PIR sensor or the Doppler radar sensor senses predetermined number of motion activities over a limited time period.
Abstract:
Systems and methods for providing message communication among multiple communication gateways. In particular, systems and methods for providing non-voice message delivery to intended recipients with increased speed and reliability to multiple users on multiple platforms. The systems and methods relate to non-voice messaging to multiple messaging gateways. In at least one embodiment, the systems and methods include Internet based electronic messaging using a messaging subsystem configured to optimize text message delivery to communication gateways.
Abstract:
The rear cover of an electronics device is made up of two sections including an external heat sink and a rear cover frame. The electronics for the computing device are directly coupled to the heat sink section. The two sections are fastened together with a layer of cushioning material to simultaneously provide shock-vibration protection as well as efficient cooling of the electronics.
Abstract:
A recessed light fixture includes an LED module, which includes a single LED package that is configured to generate all light emitted by the recessed light fixture. For example, the LED package can include multiple LEDs mounted to a common substrate. The LED package can be coupled to a heat sink for dissipating heat from the LEDs. The heat sink can include a core member from which fins extend. Each fin can include one or more straight and/or curved portions. A reflector housing may be coupled to the heat sink and configured to receive a reflector. The reflector can have any geometry, such as a bell-shaped geometry including two radii of curvature that join together at an inflection point. An optic coupler can be coupled to the reflector housing and configured to cover electrical connections at the substrate and to guide light emitted by the LED package.
Abstract:
A solar power generation system includes an array of photovoltaic modules, a plurality of positive wire lines leading from the photovoltaic modules, and a junction box including components for receiving the plurality of conductive wire lines from the photovoltaic modules and combining the plurality of conductive wire lines into a smaller number of conductive wire lines leading from the junction box and toward a load. An in-line fuse is connected to each of the positive wire lines leading from the photovoltaic modules. The in-line fuses are positioned proximate but physically outside of the junction box, such that the fuses are accessible without opening the junction box.
Abstract:
Managing solid-state luminary (SSL) fixtures over power line carrier (PLC) networks is described herein. Devices provided in this description include SSL arrays, and converter circuitry coupled to drive the SSL arrays. More specifically, the converter circuitry is adapted to convert input voltage received from a power distribution network into a level suitable for driving the SSL arrays. The devices also include (PLC) modems for coupling to PLC networks, and coupled to the converter circuitry. In particular, the PLC modems interface the converter circuitry to the PLC networks.
Abstract:
A cable tray expansion splice plate for connecting first and second cable tray sections end-to-end is disclosed. The splice plate includes an elongate body having a central section, an upper flange section, and a lower flange section. In one embodiment, the lower flange section defines a channel for receiving components of the first and second cable tray sections such that the lower flange section underlies the components. Fastener openings in the central section and the lower flange section receive fasteners to fasten the body to the cable tray sections. These openings include slots which permit the cable tray sections to move relative to one another in a longitudinal direction.
Abstract:
A system for transferring heat from an electrical enclosure is provided. An electrical enclosure defines a housing area in which one or more electrical devices are housed. A heat pump extends through the electrical enclosure, the heat pump defining a channel configured to communicate fluid for transferring heat from the one or more electrical devices. The electrical enclosure is substantially sealed from the heat pump channel and from other areas outside the electrical enclosure.
Abstract:
A system for suppressing an overheat condition in an electrical housing includes an electrical housing that defines a housing area including one or more electrical devices; a suppression fluid container containing a suppression fluid; a valve configured to regulate the flow of the suppression fluid from the suppression fluid container to the housing area; at least one sensor configured to sense at least one of temperature and smoke; and a controller communicatively connected to the at least one sensor and the valve, the controller configured to receive signals from the at least one sensor indicating an overheat condition in the housing area; and in response to the received signals indicating the overheat condition in the housing area, control the valve to allow the suppression fluid to flow from the suppression fluid container into the housing area, in order to suppress the overheat condition in the housing area.