56results about How to "Narrow down the scan range" patented technology

An interference measurement system self-alignment method, which can be realized through an optical image interference measurement system. The method comprises the following steps of: utilizing the imaging device to get the optical information of the object to be measured and store the optical information thus obtained; performing the inclination adjustment of the first direction rotation axis of the object platform based on the direction of the interference fringe in the optical information until the interference fringes are adjusted to a defined orthogonal direction, thus eliminating the inclination of the first direction rotation axis; and performing the inclination adjustment of the second direction rotation axis of the object platform based on the expansion direction of the interference fringe in the optical information until the spacing of the interference fringes are adjusted to the maximum, thus eliminating the inclination of the second direction rotation axis.

A lithographic apparatus including an illumination system for supplying a plurality of beams of radiation, an array of individually controllable elements for imparting to each beam a pattern in its cross section, a substrate table for supporting a substrate, and projection systems for projecting the patterned beams onto the substrate. A displacement system causes relative displacement between the substrate and the projection systems such that the projections beams are scanned across the substrate in a predetermined scanning direction. Each projection system includes an array of lenses arranged such that each lens in the array directs a respective part of the respective beam towards a respective target area on the substrate. The projection systems are arranged in groups such that lenses in the arrays of different groups direct parts of different beams to different target areas of the substrate that are aligned in the scanning direction. The groups of projection systems are spaced apart in the scanning direction and each group directs beams towards target areas of the substrate that are contiguous and occupy a respective contiguous section of the substrate. Thus different sections of the substrate are exposed by different groups of projection systems, enabling high through put with relatively low substrate displacement speeds and relatively small substrate displacements.

A focused laser beam having an optical axis passes through a first lens mounted to a first galvanometer and a second lens mounted to a second galvanometer. The first galvanometer is adapted to tilt the first lens about a X axis and the second galvanometer is adapted to tilt the second lens about a Y axis. This displaces the focused laser beam in a controlled manner from the optical axis to enable laser machining of very precise geometric features over a large processing window. In a preferred embodiment, the first and second lenses are a pair of inverted positive meniscus lenses, of high index of refraction material.

The invention relates to the technical field of electronics, and specifically relates to an automatic alignment method and device for an unmanned plane. The method comprises the steps: installing a rotating arm on a charging platform, and installing at least two weighing sensors at the outer edge of the charging platform, wherein the weighing sensors enables the charging platform to be divided into at least two quadrant sections; judging a target quadrant section where the unmanned plane is located according to the weighing values of the weighing sensors; driving a transmitting coil on the charging platform through the rotating arm to carry out scanning in the target quadrant section, detecting a position signal, and confirming that the transmitting coil and a receiving coil have already completed alignment when the transmitting coil detects the position signal. The method and device can prejudge a landing rough area of the unmanned plane, greatly reduce the scanning range of the rotating arm, and improve the precision.

The invention relates to the technical field of communication, and discloses a distributed monitoring method and a monitoring control device and system. Filter instances, client IDs and callback logic IDs are stored in all data servers in a distributed storage system, when clients update data to the distributed storage system, the data servers for data updating can automatically screen and filter the updated data through the filter instances, if the update data satisfies the condition of the filter instances, the update data and the callback logic IDs corresponding to the filter instances are fed back to the corresponding clients, and the clients can trigger a corresponding processing process according to the callback logic IDs in response data. The multi-process cross-host event monitoring function in the distributed storage system is achieved so that the clients can obtain notification of specified data update in real time, the event response efficiency is improved, and the user experience can be improved.

Embodiment of the invention discloses a MPPT (maximum power point tracking) scanning method and system for photovoltaic arrays and solves the problems of high energy loss and failure in scanning actual global maximum power points in the prior art. The method includes: determining a scan voltage range; determining local maximum power points so as to determine a first reference point and a turning point; comparing the current of the first reference point to that of the turning point so as to determine whether scanning is performed on the reference point or not; if yes, scanning to determine the local maximum power points so as to determine a next reference point and a next turning point; if not, directly determining the next reference point and the next turning point; if the newly determined reference point has the voltage exceeding the determined scan voltage range, ending the scanning; if the newly determined reference point has the voltage not exceeding the determined scan voltage range, re-comparing the current of the reference point to that the turning point so as to determine whether to scan around the reference point or not, and continuing to execute till the end of scanning according to the previous steps; after scanning, using the maximum on of the local maximum power points as the maximum power point of one photovoltaic array.

The invention discloses a method and a device for safety scanning an external storage device of a smart terminal. The method includes: when an external device is connected to the smart terminal, the operation system of the smart terminal acquires the mount root directory of the external device and creates a monitor on the currently opened folder directory to monitor the file operation states of the files under the folder directory; if the file operation state accords to the preset conditions, the directory path of the corresponding folder directory is acquired; a virus scanning program is called to perform safety scanning on the files under the directory path. The device comprises a monitoring module, a directory path acquiring module and a calling module. The method and the device has the advantages that safety scanning is only performed on the files under the acquired directory path, full scanning is not needed, virus scanning range is reduced, time consumption for virus scanning is reduced, virus scanning efficiency is increased greatly, and influence on a user using the smart terminal is small.

A tunable optical filter is disclosed having an input port, a beam translator for translating input and output optical beams, an element having optical power for collimating the translated beam, a reflective wavelength dispersive element, and an output port. The beam translator can include a tiltable MEMS mirror coupled to an angle-to-offset optical element. An output port can be extended into a plurality of egress ports, each receiving a fraction of the scanned optical spectrum. A multi-path scanning optical spectrometer can be used as an optical channel monitor for monitoring performance of a wavelength selective switch, or for other tasks.

The invention discloses a method for automatically discovering network topology in a wireless cluster network management, comprising: (1) setting an IP range; (2) obtaining all routing devices; (3) traversing a routing queue to obtain wireless cluster devices; (4) ) to obtain MSC; (5) to obtain BS. The invention adopts the combination of ICMP and SNMP to effectively reduce their respective shortcomings, and sets IP range segments, and reduces unnecessary operations and saves bandwidth and time by customizing MIB items.

The present invention provides a capacitive touch panel having approaching sensing function and a scan method thereof. The capacitive touch panel has a touch operation area, multiple sensing coils, a coil controller, and a touch panel controller. The sensing coils are mounted in the touch operation area at intervals. Each of the sensing coils produces a third axial sensing signal according to changes of a magnetic field of itself. The coil controller is electronically connected to each of the coils and the touch panel controller. Either the coil controller or the touch panel controller determines a position of a sensing object according to the third axial sensing signal, and scans a subarea of the touch operation area corresponding to positions of the coils to determine the position of the sensing object. Therefore, the present invention scans partial traces to determine the position of the sensing object. Namely, the present invention can increase scan frequency in unit time to increase scanning accuracy.

The invention provides a beam forming-optimizing method and device. A base station acquires current position property information of an accessed mobile terminal, and performs beam forming under the assistance of the current position property information of the mobile terminal. The base station determines a general direction of a signal incoming wave according to the current position of the mobile terminal, so that a scanning range of a beam direction is reduced; the convergence domain of the beam forming is reduced; and the aim of accelerating the convergence speed of the beam forming is fulfilled.

The invention provides a distributed method for predicting an active IPv6 address and related equipment. The method comprises the following steps: based on a seed set of active IPv6 addresses of each participating terminal in a network, training a pre-obtained global active IPv6 address association initial model by utilizing a federated machine learning mode, and uploading an updating model obtained after the training is completed to a central server by each participating terminal, the central server aggregates all the update models to obtain a global active IPv6 address association model; and predicting a new active IPv6 address according to the global active IPv6 address association model. In the training process, each participating terminal only uploads the updated model parameters to the central server to protect original data, meanwhile, the predicted IPv6 address can better meet the actual scanning requirement of each participating terminal, scanning is carried out according to the new active IPv6 address obtained through prediction, the scanning range can be narrowed, and the scanning efficiency is improved.

The invention relates to an Apriori method with low consumption. The Apriori method is used for mining an associated movement rule of a movement track of an intelligent mobile terminal. The Apriori method comprises the following steps: the time attribute and the space attribute of the movement track of a mobile node are used as mining object data together, the dual attributes, including time and space, of the movement track are fully considered, and a scanning range of a movement track data set is reduced in a process that a frequency item set is generated by a candidate frequency item set to shorten time for obtaining the candidate item set so as to achieve a purpose or consumption reduction. Compared with a traditional Apriori method, the Apriori method provided by the invention is suitable for mining the associated rule of the movement track of the intelligent mobile terminal.

The embodiment of the invention discloses a laser processing control method, a device, equipment and a computer storage medium. The method comprises the following steps that a decoupling filter with a delay consistency property of frequency components in a passband is designed; a speed strategy of a laser beam processing track is planned based on the constraint of the light outlet aperture of a coaxial air nozzle on the scanning range of a galvanometer; according to the speed strategy, the low-pass cut-off frequency of the decoupling filter is set based on the reverse correlation between the low-pass cut-off frequency and the scanning range of the galvanometer; and the laser beam processing track is decomposed into a servo platform track and a galvanometer track which are linked by using the set optimal decoupling filter.

The invention discloses a cargo sorting information acquisition device and method. The device comprises a tracking positioning unit used for reducing a scanning scope of a scanning unit, determining an area of operation behaviors and locking the scanning position, an information acquisition unit used for acquiring and processing the position information of the tracking positioning unit, a control unit used for receiving signals transmitted by the information acquisition unit and controlling operation of a scanning device, and the scanning unit used for scanning bar codes in the operation behavior area to acquire the logistic information on operated cargo bar codes. The device is advantaged in that the motion area of workers can be rapidly locked, the scanning scope of the scanning unit can be reduced, sorting operation is made to be smoother, and work efficiency is improved.

The invention discloses a positioning method and a positioning device for a target position of a semiconductor chip sample. The positioning method comprises the following steps: S1, providing the semiconductor chip sample; S2, observing the sample through an optical microscope to determine a target position, and marking the target position; and S3, observing the sample through an electron microscope to determine the mark of the target position, and grinding the sample to the corresponding position according to the mark of the target position. According to the method for positioning the targetposition of the semiconductor chip sample, the sample can be processed after the target position is determined, so that excessive grinding can be avoided, the integrity of the target position can be ensured, and the scanning range and the sample preparation time can be reduced.

The embodiment of the invention provides a flash memory detection method and device. The flash memory detection method comprises the following steps: determining a to-be-scanned area of a flash memory; determining a word line to be scanned in the area, and scanning the word line; the error correction unit corresponding to the word line is determined according to the scanning processing result, the reference voltage is determined through the error correction unit, the word line to be scanned is selected from the area to be scanned for scanning, scanning of all the area to be scanned is avoided, and the scanning time is shortened.

An inductor includes a coil having a winding portion of a conductor wound in a two-stage spiral shape and an extended portion extended from the winding portion, an element body containing the coil, and an outer electrode. The winding portion is arranged such that a winding axis intersects a first pair of surfaces, is substantially orthogonal to the first pair of surfaces as viewed from a second pair of surface side, and intersects a normal line on the first pair of surfaces as viewed from a third pair of surfaces side. Respective pairs of surfaces are opposed to one another, and the winding axis is inclined in a direction where an exposed portion exposed on a surface of the element body is positioned closer to an intermediate surface at an equal distance from respective first pair of surfaces relative to the normal line on the first pair of surfaces.

The invention relates to a method and a device for measuring liver fat content. The method is characterized by comprising the following steps: step 1, performing quantitative computer tomography QCT scanning on a liver sample by using a CT scanner provided with a solid phantom, and transmitting scanned images to a QCT workstation to generate a 3D image after processing; step 2, in a sagittal planeimage, placing three region of interests (ROIs) in the center of the sample, setting detection parameters, and outputting a QCT BMD<Sample>, a slope and a scanning field uniform correction coefficient FUC; and step 3, calculating the fat content of the liver sample.