Abstract:
A method for data compression includes reading first data representing sensor data capture, compressing the data with a lossless algorithm, transmitting the compressed data as a reference frame, reading subsequent data, calculating a delta between the first data and the subsequent data, compressing the data delta, and determining if the compression ratio of the compressed data delta is within a predetermined tolerance threshold. If the compression ratio is within the threshold, transmitting the compressed data delta frame, and repeating the calculating, compressing, and determining steps for subsequent data; Else if the compression ratio is not within the threshold, compressing the current subsequent data and transmitting the result as an updated reference frame. Then repeating the calculating, compressing, and determining steps for subsequent data. A system and a non-transitory computer-readable medium for implementing the method are also disclosed.
Abstract:
A switching system includes a MEMS switching circuit having a MEMS switch and a driver circuit. An auxiliary circuit is coupled in parallel with the MEMS switching circuit, the auxiliary circuit comprising first and second connections that connect the auxiliary circuit to the MEMS switching circuit on opposing sides of the MEMS switch, first and second solid state switches connected in parallel, and a resonant circuit connected between the first and second solid state switches. A control circuit controls selective switching of a load current towards the MEMS switching circuit and the auxiliary circuit by selectively activating the first and second solid state switches and the resonant circuit so as to limit a voltage across the MEMS switch by diverting at least a portion of the load current away from the MEMS switch to flow to the auxiliary circuit prior to the MEMS switch changing state.
Abstract:
A lighting selection system and method obtain individualized characteristic data for each of plural light emitting devices, determine a difference between a value of the characteristic data and a designated target value for each of the light emitting devices, and group the light emitting devices into different groups based on the differences between the values of the characteristic data and the designated target value. The differences of the light emitting devices in a common group of the groups are closer together than the differences of the light emitting devices in other groups of the groups. The system and method also may select at least one of the groups of the light emitting devices for inclusion in a light device.
Abstract:
The present disclosure is directed to a heat flux assembly for an energy storage device (142). The energy storage device includes a housing (143, 146) with a plurality of side walls (148) that define an internal volume and a plurality of cells configured within the internal volume. The heat flux assembly includes a plurality of heat flux components (182) configured for arrangement with the side walls of the housing of the energy storage device and one or more temperature sensors configured with each of the plurality of heat flux components. Thus, the temperature sensors are configured to monitor one or more temperatures at various locations in the plurality of heat flux components. The heat flux assembly also includes a controller configured to adjust a power level of each of the heat flux components as a function of the monitored temperature so as to reduce a temperature gradient or difference across the plurality of cells during operation of the energy storage device.
Abstract:
A RF MEMS package includes a MEMS die assembly having a signal line (46) formed on a top surface of a first mounting substrate (42), the signal line comprising a MEMS device (48) selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads (52, 54, 56, 58) formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly (43) is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region (62) formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.
Abstract:
There is provided a luminaire that includes a plurality of cameras supported by a member. One camera has a field of view overlapping the field of of another camera.
Abstract:
Materials and optical components formed thereof that are suitable for use in lighting units to obtain or approximate white light illumination, including lighting units that utilize one or more light-emitting diodes (LEDs) as a light source.
Abstract:
A lighting system includes a light source configured to generate light toward one or more surfaces or materials to inactivate one or more pathogens on the one or more surfaces or materials. The light includes an inactivating portion having wavelengths in a range of 280 to 380 nanometers.
Abstract:
The present disclosure provides a lamp assembly (200), comprising a base (202), an outer jacket (204) mounted to the base (202), a first reflective substrate (206, 208) positioned within the outer jacket (204), and a first solid-state light source (220) disposed proximate the first reflective substrate (206, 208). The outer jacket (204) may be glass. The outer jacket (204) may hermetically seal the first solid-state light source (220).
Abstract:
Provided is a traffic communication network that includes a signaling system having a plurality of light signaling devices, a controller disposed at at least one traffic intersection, and configured to wirelessly control the plurality of light signaling devices. A remote control system is also provided to wirelessly transmit commands to the controller and directly to the plurality of light signaling devices. Also provided is a traffic communication network that includes a signaling system including a plurality of light signaling devices, and a controller configured to wirelessly control the plurality of light signaling devices; and a remote control system in wireless communication with the controller and configured to control the controller.