摘要:
A digital signal processor implementation of three algorithms used to detect high impedance faults. The algorithms can be wavelet based, higher order statistics based and neural network based. The algorithms are modified to process one second of data instead of ten seconds of data and a double buffered acquisition is connected to the output of the algorithms.
摘要:
A technique for dynamically determining the occurrence of a high impedance fault (HIF) independent of load. An HIF algorithm provides the energy value for a given number of samples of the input signal that is phase (load) currents and/or neutral (residual) current. The input signal energy value is multiplied by a factor that ranges from about 110% to about 300% to calculate a threshold energy value and the result of that calculation is stored in a buffer. A HIF detection signal is generated when the energy value determined for samples of the input signal that are the same in number as the given number of samples and taken after the given number of samples is greater than an energy value derived from a predetermined number of the calculated threshold energy values.
摘要:
A multi port nozzle may be provided. The multi port nozzle may include a main inlet. In addition, the multi port nozzle may include a first chamber branching off from the main inlet. The first chamber may have a first port. Moreover, the multi port nozzle may include a second chamber branching off from the main inlet. The second chamber may be separated from the first chamber by a partition and may have a second port. The first chamber may include a first plurality of mixing elements and the second chamber may include a second plurality of mixing elements.
摘要:
An energy saving gas discharge lamp, and method of making same, is provided. The gas discharge lamp includes a light-transmissive envelope, and an electrode within the light-transmissive envelope to provide a discharge. A light scattering reflective layer is disposed on an inner surface of the light-transmissive envelope. A phosphor layer is coated on the light scattering reflective layer. A discharge-sustaining gaseous mixture is retained inside the light-transmissive envelope. The discharge-sustaining gaseous mixture includes more than 80% xenon, by volume, at a low pressure.
摘要:
Systems and techniques to apply an image distortion to two image objects of different graphic types. In general, in one implementation, the technique includes: receiving an image distortion description to be applied to an image portion including a vector graphic and a raster graphic, the raster graphic being distortable separate from the vector graphic, applying the image distortion description to the vector graphic to produce a distorted vector graphic, and applying the image distortion description to the raster graphic to produce a distorted raster graphic, the distorted vector graphic and the distorted raster graphic together forming a distorted image portion.
摘要:
In one embodiment, a method for avoiding the misapplication of contents in one or more containers, the method comprising: providing a first smart label, the first smart label comprising first information corresponding to a first recipe for a first composition to be applied by a machine to crops in a first portion of a field, the first recipe based on geofence information for the first portion of the field; and assigning by a processor the first smart label to a first container that stores the first composition.
摘要:
An energy saving gas discharge lamp, and method of making same, is provided. The gas discharge lamp includes a light-transmissive envelope, and an electrode within the light-transmissive envelope to provide a discharge. A light scattering reflective layer is disposed on an inner surface of the light-transmissive envelope. A phosphor layer is coated on the light scattering reflective layer. A discharge-sustaining gaseous mixture is retained inside the light-transmissive envelope. The discharge-sustaining gaseous mixture includes more than 80% xenon, by volume, at a low pressure.
摘要:
In an example embodiment, an adjustment apparatus for varying the ground clearance of a vehicle includes an adjustable leg configured to couple to a chassis and wheel of a vehicle, and a removable stop to releasably fix the adjustable leg in a desired condition. The adjustable leg may include a main leg and a drop leg that is movable within the leg, the main leg configured to couple to a chassis of a vehicle and the drop leg configured to couple to a vehicle wheel.
摘要:
A system and method for directing when and where an agricultural vehicle should refill a container thereof may comprise a sensor for detecting an amount of material in the container, a location determining device, and a processing device communicably coupled with the sensor and the location determining device, as well as a display, a speaker, and/or an automated steering system. The processing device may use information regarding the amount of material in the container, the location of the agricultural vehicle, and a variety of other factors to determine when the container needs to be refilled and to determine a refill location at which the agricultural vehicle should refill. The processing device may send these refill instructions to the display, the speaker, and/or the automated steering system. The processing device may also alert a refill vehicle to travel to the determined refill location, if necessary.
摘要:
Disclosed herein is an adjustable width drive axle including: a main axle body including a telescoping portion disposed at each end of the main axle body; a sprocket affixed to each end of the main axle body, the sprocket designed to engage a drive unit; a first spacer removably affixed to the sprocket, the first spacer disposed around the telescoping portion of the main axle body; and a hub removably affixed to an end of the first spacer opposite the sprocket, wherein one or more additional spacers may be interposed between the first spacer and the hub or between the sprocket and the first spacer to adjust the width of the axle.