32results about How to "Improve area coverage" patented technology

Pilot signal sequences with a low Peak-to-average ratio are generated by a method comprising the steps of providing a first signal sequence consisting of a first number, m, of signal elements and known to have a frequency spectrum with either identical or nearly identical non-zero amplitude values in a first frequency interval, performing an invertible first transformation of the first signal sequence into a first frequency spectrum in the first frequency interval, the first frequency spectrum consisting of m first frequency samples, performing a second transformation of the first frequency spectrum into a second frequency spectrum consisting of n frequency samples in the first frequency interval, the n frequency samples being formed by the m first frequency samples and a third number, n minus m, of additional second frequency samples, which have zero amplitude, such that the second frequency spectrum has m frequency spikes distributed over the second frequency interval, and performing a third transformation, which forms an inverse of the first transformation, to the second frequency spectrum to obtain a second signal sequence forming the pilot signal sequence.]

A light guide plate (32) used in a surface light source (30) for a liquid crystal display includes a light incidence surface (321) for receiving light beams, an emission surface (325) perpendicular to the light incidence surface for emitting the light, a bottom surface (323) opposite to the emission surface, and a plurality of grooves (327) and light reflection dots (329) formed on the bottom surface. The grooves are formed in a continuous band adjacent to the light incidence surface and extend perpendicular to the light incidence surface for scattering the light beams. The light guide plate provides highly uniform illumination for a liquid crystal display panel.

An optical lens refracts and reflects a light to increase a luminance in a top direction of the optical lens and to decrease a luminance in a horizontal direction of the optical lens. The optical lens includes a central portion and a peripheral portion. The central portion has a convex shape. The peripheral portion has a concave shape. The peripheral portion surrounds the central portion. Therefore, a power consumption and a manufacturing cost are decreased.

A smart card module has an elongated circuit substrate; a card-reader contact element on one side of the substrate for connection to a smart card reader; an integrated circuit connection element on another side of the substrate connected to the card-reader contact element and to which an integrated circuit is mountable; and an antenna on the substrate connected to the integrated circuit connection element for receiving radio frequency signals from the smart card reader. A furthest perimeter edge of the antenna is spaced from a proximal edge of the card-reader contact element by at least half a distance between the proximal edge and a center C1 of the card-reader contact element. Thus a larger antenna coil can be accommodated on the substrate with less overlap of the card-reader contact element, whilst also enabling a separate module to be integrated with the smart card.

A probe center server (10) previously performs filtering to determine whether or not a projection norm of a link in a feature space can be interpolated, and notifies a probe terminal (20) to preferentially collect and upload detected probe data for the link whose missing data can not be interpolated.

The invention discloses a multi-unmanned aerial vehicle area coverage deployment method based on a particle swarm genetic algorithm, and solves the problem of area coverage deployment of an unmanned aerial vehicle according to the size of a target area and various parameters of the unmanned aerial vehicle. According to the method, the particle swarm algorithm is used as a basic framework, and theimproved genetic algorithm is embedded into the iteration process of the particle swarm algorithm, so that the algorithm is prevented from falling into a local extreme value. According to the method,a particle swarm genetic algorithm is used to carry out comparative study on the coverage deployment scheme according to the regional coverage rate and the network connectivity, and multiple times ofiterative optimization is carried out to finally obtain an optimal coverage deployment scheme.

The invention discloses wireless sensor network low energy-consumption coverage optimization algorithm. On the premise of lowest energy consumption of round clusters, backbone node optimal value which can satisfy coverage capacity can be obtained. By using PSO (particle swarm optimization) to dynamically adjust flying direction and speed of nodes and a backbone node deployment scheme which uses step-by-step iteration to obtain optimal coverage, data information in a sensing area can be collected effectively, sensor network resources can be fully managed, the problems that uneven backbone node distribution, optimal backbone node number cannot be achieved, network energy consumption is unbalanced, network coverage capacity is low and the like are solved effectively, technical support is provided for reasonably effectively deploying backbone nodes to reach high network coverage uniformity and network coverage rate on the premise of low energy consumption of sensor networks, and a novel solution is provided for improving area coverage capacity of networks on the premise of network low energy consumption.

Methods and apparatus for gas metal arc welding are provided. The methods of the invention allow production of high quality welds using shielding gas atmospheres having at least 30% carbon dioxide and electrode diameters less than 1.6 mm. The metal transfer mode is not short-circuit transfer. The invention also provides welding torch contact tips having a localized contact region.

A method of varying the ink density of the full tone in printing within a rotary printing machine with an ink application system which can provide a constant quantity of ink which, in spite of constant ink supply from the inking unit, permits control of the full-tone density or adaptation of the raster tonal values in the print. The method includes setting the binary image on a printing plate. A basic raster of raster points, which determines the area coverage of the binary image, is produced on the printing plate for the variable-area image information. The basic raster is then superimposed on a fine microraster in such way that the area coverage of the basic raster is reduced by a percentage which can be set between 0% and 100%.

An emergency lighting function illumination appliance comprised of a fluorescent lamp tube, a controller, a mains power circuit capable of processing mains electric power for lighting, and a backup circuit that provides for a backup power source. With these devices combined, the controller produces the following functions: 1) When mains power is normally supplied, an ON-OFF switch approach controls the fluorescent lamp in accordance with user intent. 2) During a mains power outage, the power circuit is automatically shifted to the backup circuit and the backup power source supplies electricity for emergency lighting. 3) When mains power supply is restored, the power circuit is automatically shifted to the mains power circuit and the mains power resumes the ordinary lighting function.

Geometrically complex solar panels are disclosed. The geometrically complex solar panels disclosed herein can take advantage of the flexibility of monocrystalline solar cells while enhancing security and functionality of the cells and to widen the design limits faced by architects and builders in planning for the use of solar energy panels by custom creating a pre-formed rigid shell mount that fixes and stabilizes the cell arrays in the desired form

A multi-modal field-programmable metamorphic sensor is provided. The metamorphic sensor has a multi-layer structure, including an upper electrode layer, a spacer layer, and a lower electrode layer. At least one of the upper electrode layer and the lower electrode layer is a sensor A. The spacer layer is disposed between the electrode layers. A sensor B is formed through forming a structure of electrode layer—spacer layer—electrode layer structure. When detecting an object, the measurement of different physical quantities of different objects is implemented through switching between the sensor A and the sensor B. The sensor serves as a single cell. Multiple single cells are combined to form a multi-cell sensor. A signal acquisition system for acquiring signal of the sensor is also provided.

A formed substrate, wherein the surface of the valve-acting metal having a dielectric film is at least partially covered with an oxide comprising Si, valve-acting metal element and oxygen, preferably, wherein the content of Si in the formed foil having an aluminum oxide dielectric film decreases continuously from the surface of the dielectric film toward the inner part in some regions in the aluminum dielectric film thickness; a method for producing the formed substrate; and a solid electrolytic capacitor comprising a solid electrolyte on the formed substrate. A solid electrolytic capacitor manufactured by using a formed substrate according to the present invention, improved in adhesion to an electrically conducting polymer (solid electrolyte) with its area coverage contacting the polymer being sufficiently large, is increased in the electrostatic capacitance among individual capacitors and improved in the LC yield as compared with capacitors otherwise manufactured.

The invention discloses a region regulating method of an electronic map, a region regulating device of the electronic map and electronic equipment. The method comprises the following steps of obtaining a region to be regulated in the electronic map; preprocessing a polygon corresponding to the region to be regulated on the basis of preset preprocessing rules so as to obtain the preprocessed polygon, wherein the preset preprocessing rules are used for removing abnormal regions in the polygon corresponding to the region to be regulated; performing equidistance regulation on a plurality of edgesin the preprocessed polygon on the basis of a preset regulating direction and a preset regulating distance so as to obtain the regulated polygon, wherein the equidistance regulation includes one regulation mode of expansion regulation and zooming regulation; and updating the position and the range of the region to be regulated in the electronic map according to the corresponding relationship of the regulated polygon and the region to be regulated in the geographic position.

Provided are a thunderstorm day automatic recording system applied to a meteorological station and a recording method thereof. The system comprises one or more thunderstorm day automatic recording devices and a remote server. Each thunderstorm day automatic recording device comprises an electrical field planar antenna, a microphone array, a solar cell panel, a GPS antenna, a terminal and a support, wherein the electrical field planar antenna, the microphone array, the solar cell panel, the GPS antenna and the terminal are all mounted on the support. Each microphone array is composed of a plurality of microphones which are symmetrically and evenly distributed on a planar circular array around the support by a certain distance. The thunderstorm day automatic recording devices are in communication with a 3G network through a 3G communication module, and meanwhile the remote server is connected to the 3G network through an INTERNET. The thunderstorm day automatic recording system applied to the meteorological station has the advantages that the happening time and the direction of thunderstorms are automatically recorded, thunderstorm data are sent to the remote server, the starting and stopping time and the starting and stopping direction of each thunderstorm process are counted by the remote server, the year thunderstorm days in an area under administration of an observation station are calculated, the cost is low, and simpleness and reliability are achieved.

An emergency lighting function illumination appliance comprised of a fluorescent lamp tube, a controller, a mains power circuit capable of processing mains electricity for lighting, and a backup circuit that provides for a reserve power source. By integrating these devices, renovation of existent wiring is not required for installation. When mains electricity is normally supplied, an ON-OFF switching approach controls the illumination and extinguishment of the fluorescent lamps, but during mains electricity failures, a power circuit automatically shifts to a backup circuit that furnishes reserve power to provide for emergency lighting. Furthermore, when mains electricity supply is restored, the power circuit is automatically shifted to the mains power circuit such that ordinary lighting function is once again reliant on mains electricity.

The invention belongs to the technical field of anti-explosion stacking machines, and discloses an anti-explosion stacking machine installed and used in a stereoscopic warehouse. The anti-explosion stacking machine comprises a top rail, a movable cross beam is movably installed at the top of the top rail, a first motor is fixedly installed at the rear end of the top of the top rail, and an output shaft of the first motor is in transmission connection with a driving transmission rod; and the two ends of the driving transmission rod are fixedly connected with first driving transmission wheels. According to the anti-explosion stacking machine, a movable sliding rail can move to the two ends of a transverse moving rail along the transverse moving rail, and the transverse moving rail can vertically move up and down along a longitudinal moving rail so that the height of the transverse moving rail during grabbing, releasing and goods carrying moving can be adjusted; the movable sliding rail does left-right horizontal movement along the transverse moving rail and can be matched with the movable cross beam to do front-back horizontal movement along the top rail, the grabbing and releasing positions are adjusted, and therefore it is guaranteed that goods can be accurately grabbed or released to a stacking table.

The invention discloses a composite wing unmanned aerial vehicle parking device. The parking device comprises a fixed storage device and a controller, a meteorological station and a movable door are arranged at the top of the fixed storage device, the movable door is movably connected to the top of the fixed storage device, a parking platform is arranged in the fixed storage device, and a platformlifting device is connected to the bottom of the parking platform. The parking platform comprises a position adjusting mechanism, the position adjusting mechanism comprises four push rods arranged onthe periphery of the parking platform, each push rod is connected with a push rod driving mechanism and comprises a transverse push rod body and a longitudinal push rod body, and the transverse pushrod bodies and the longitudinal push rod bodies are not located on the same horizontal plane in the vertical direction. The parking device can be deployed near the operation site of the composite wingunmanned aerial vehicle for a long time, the timeliness and the area coverage capacity of emergency operation of the composite wing unmanned aerial vehicle are improved, meteorological data are received in real time by arranging the meteorological station, the take-off and landing conditions can be judged according to the meteorological data, and the take-off angle is automatically adjusted according to the type characteristics of the composite wing unmanned aerial vehicle.

A system and a method of increasing an area continuously captured by an image capturing device directed at said area are provided herein. The method may include the following steps: directing said image capturing device at said area in a specified image orientation; receiving momentary orientation measurements of said image capturing device; calculating in real-time, based on said measurements, a shift in orientation of said image capturing device relative to said specified image orientation; providing instructions for rotation in real-time of said image capturing device, to compensate for said shift; and rotating, using a rotation mechanism, said image capturing device based on said instructions, wherein the image capturing device is mounted on a non-stationary platform moving in a periodic pattern.

The invention discloses a multi-unmanned aerial vehicle area coverage deployment method based on particle swarm genetic algorithm, which solves the area coverage deployment problem of the unmanned aerial vehicles according to the size of the target area and various parameters of the unmanned aerial vehicles. The invention takes the particle swarm algorithm as the basic frame, embeds the improved genetic algorithm into the iterative process of the particle swarm algorithm, and avoids the algorithm from falling into local extremum. The invention uses the particle swarm genetic algorithm to conduct comparative research on the coverage deployment scheme according to the area coverage rate and the network connectivity, and finally obtains the best coverage deployment scheme through multiple iterative optimizations.