38results about How to "Quick and effective positioning" patented technology

The invention discloses a method and a device for extracting contents of bodies of web pages. The method includes parsing to-be-extracted documents of the web pages to generate document object model tree structures and combining leaf nodes of document object model trees corresponding to the web pages with one another to form node sets; searching father nodes corresponding to the certain leaf nodes in the document object model trees; merging the certain leaf nodes with the father nodes, and merging the leaf nodes with identical father nodes with one another; determining that zones included by the leaf nodes are zones where the contents of the bodies of the web pages are located if the merged leaf nodes in the node sets meet preset conditions; removing tags of the web pages in the determined zones where the contents of the bodies of the web pages are located, and extracting the contents of the bodies of the web pages. The certain leaf nodes are positioned in the deepest layers in the node sets. The method and the device have the advantages that by the aid of the method and the device, the zones where the bodies in the HTML (hypertext markup language) pages are located can be quickly and effectively positioned and can be separated from noise contents, and the body content information acquisition efficiency can be improved.

A system for controlling the position of a movable object on a viewing device in an aircraft cockpit, which can be actuated by an operator includes means for determining, at least at one given moment, a position of a target zone on said viewing device toward which the operator's gaze is directed, and positioning means adapted for placing the object on the target zone of the viewing device.

Provided is a method for positioning an optical center on the basis of a concentric circle theory. The method comprises the following steps of: (a) selecting at least one predetermined available area from a target image; (b) acquiring at least one group of brightness data approximately conforming to circle distribution in the available area according to at least one brightness gradient value; (3) performing circle fitting on the brightness data approximately conforming to circle distribution to obtain at least one concentric circle; and (4) computing the center of the concentric circles so as to obtain the position of the optical center. The method prevents brightness analysis of a whole target image in a conventional method, determines the position of the optical center by performing circle fitting on the extracted concentric circles. A calibration plate and other shielding objects are not required to be removed in a whole process and the optical center is effectively and fast positioned. Whether a product is subjected to a horizontal eccentricity is determined according to the position of the optical center such that the quality of the product is guaranteed.

The invention discloses an unmanned aerial vehicle positioning system and method based on radio frequency array signal DOA estimation. The system comprises two groups of the same antenna receiving assemblies, an interface device and a control computer, wherein the antenna receiving assemblies are arranged at different positions, and each group of the antenna receiving assemblies comprises an L-shaped antenna array, a receiving device and a processing device; the L-shaped antenna array comprises two antenna linear arrays which are vertically arranged, and eight antennas are uniformly distributed and arranged in parallel; the interface device receives and sends the control signals to the two processing devices, the internal signal processing algorithm is circularly executed, the signal of the unmanned aerial vehicle is judged, and if the signal of the unmanned aerial vehicle exists, the pitch angle and the azimuth angle at which the calculated signal arrives are processed and sent to theprocessing devices. According to the system, the signal-to-noise ratio is improved, the defect that the MUSIC algorithm is not accurately positioned when the signal-to-noise ratio is lower is overcome, the system can be protected when an anti-control device emits a larger power signal, and the loopholes of supervision and protection can be effectively improved.

The embodiment of the invention provides a fault location method, device and system. According to the method, a monitoring data message sent by a server is received by sending a monitoring request message to the server. The monitoring data message includes operation information of the server. The operation information of the server is analyzed according to fault location rules, so that fault location on the server can be achieved. By means of the method, effective location on server faults can be achieved, and system maintenance personnel can locate system faults quickly and effectively.

The invention belongs to the field of geological exploration of interlayer oxidation zone sandstone type uranium ore, and in particular relates to a geophysical and geochemical exploration combinationmethod for delineating a sandstone type uranium ore prospective area. The geophysical and geochemical exploration combination method disclosed by the invention comprises the following steps of (1), rapidly locating a sand body by utilizing shallow earthquake; (2), roughly delineating the trend of a redox front by utilizing geophysical and geochemical exploration of a stream sediment; (3), delineating a favorable sand body distribution range A, wherein a sand body, which has a certain thickness, good connectivity and steady top and bottom waterproof layers, near the redox front is delineated as the favorable sand body range A; (4), delineating an ore-induced abnormal combination range B by utilizing soil radon measurement and geophysical and geochemical exploration of the stream sediment;and (5), delineating the ore prospective area. By means of the geophysical and geochemical exploration combination method disclosed by the invention, the ore prospective area can be located rapidly and effectively; therefore, drilling can be objective; waste of the unnecessary drilling workload is reduced as much as possible; the money and the time are saved; and fast breaking of sandstone type uranium ore prospecting can be realized.

The invention discloses a locating tool assembly for welding of an automobile instrument panel support, and the locating tool assembly is used for locating the automobile instrument panel support, wherein L-shaped plates are arranged at two ends of the automobile instrument panel support, and a middle block piece and a middle locating panel are arranged in the middle of the automobile instrument panel support. The locating tool assembly comprises a first tool and a second tool, wherein a first locating block used for locating the middle block piece is arranged on the first tool, a second locating block is arranged at the left end of the second tool and used for locating the L-shaped plate at the left end, a third locating block is arranged at the right end of the second tool and used for locating the L-shaped plate at the right end, and a fourth locating block used for locating the middle locating panel is arranged in the middle of the second tool. According to the locating tool assembly for the welding of the automobile instrument panel support, the first locating block, the second locating block, the third locating block and the fourth locating block are additionally arranged in the first tool and the second tool, a position sensor is used in a combined mode, a relative position of a component with the requirement of an accurate position can be located quickly and effectively, and therefore the accuracy of a final welding position of a product is guaranteed, and the requirements of precision assembly are met.

A machining operation rapid search method based on feature identification is characterized by including the steps of firstly, assigning an identification value to each generated characteristic when characteristic recognition is conducted on a part; secondly, assigning the identification value corresponding to each characteristic to the machining operation corresponding to the machining characteristic when the machining operation for the part is generated so as to associate the characteristic based on the corresponding characteristic identification value with the machining operation; thirdly, selecting geometrical elements of the machining operation to be searched for on a part model through mouse clicking in the search process, searching for the characteristics to which the geometrical elements belong, extracting the identification values of the characteristics, searching a list of the machining operation of the part for the machining operation containing the identification values, and enabling rapid search to be achieved. According to the method, the numerical control programming efficiency of technologists can be effectively improved, and technological preparation time can be effectively shortened.

The invention relates to a shrimp seedling positioning method. A received digital shrimp seedling image is preprocessed and a shrimp seedling contour is extracted; a minimum circumscribed rectangle ismade for the extracted shrimp seedling contour and a shrimp seedling identification rectangle is constructed by using the long axis direction and the center position of the minimum circumscribed rectangle as references; shrimp seedling identification is carried out on images in all shrimp seedling identification rectangles in the digital shrimp seedling image by using a pre-built shrimp seedlingidentification model and direction identification is carried out on the identified shrimp seedling; skeleton extraction is carried out on the identified shrimp seedling to obtain a shrimp seedling trunk, wherein an included angle between the shrimp seedling trunk and a horizontal line is the shrimp seedling direction; whether the shrimp seedling skeleton has an effective angular point is determined; if so, angular point detection is carried out; if not, an optimal matched shrimp seedling image is searched according to the shrimp seedling identification model; and the complete shrimp seedling skeleton rotates and the angular point is placed at the front end point of a to-be-located shrimp seedling skeleton, and then angular point detection is carried out, so that the precise position of theshrimp seedling is obtained.

The invention provides a convenient and durable power-driven bottle opening assembly capable of automatically cutting packaging paper on the top part of a wine bottle. The power-driven bottle opening assembly comprises a case (1), wherein a power supply box (2), a power-driven motor (3), a speed changer (4), a trigger switch (5) and a paper cutting device (6) are sequentially arranged in the case (1); the power supply box (2) is connected with the power-driven motor (3); the power-driven motor (3) is connected with the speed changer (4); the speed changer (4) is connected with the paper cutting device (6); the trigger switch (5) is arranged on one side of the speed changer (4) and above the paper cutting device (6); the trigger switch (5) is contacted with the paper cutting device (6) and is respectively connected with the power supply box (2) and the power-driven motor (3); when the trigger switch (5) is extruded by the paper cutting device (6), a loop is switched on to start the power-driven motor (3) so as to drive the paper cutting device (6) to cut paper. The power-driven bottle opening assembly is applicable to the power-driven bottle opening field.

The invention discloses a dispatching master station-oriented power grid frequency disturbance source positioning method. The method comprises the following steps of: acquiring full-area system frequency and power plant unit power by using a WAMS data acquisition system to form a system frequency and power plant unit power parameter library; according to the system frequency data, distinguishing the system frequency by adopting a prony algorithm to obtain a dominant mode disturbance frequency, a disturbance amplitude and a damping ratio, and judging whether frequency disturbance occurs in thesystem or not according to the dominant mode disturbance frequency, the disturbance amplitude and the damping ratio; and if the frequency disturbance occurs, obtaining the correlation between the system frequency and the power data trend of each unit, determining the assistant increasing attribute of the unit power to the system frequency through the correlation, and determining the unit or the unit group causing the disturbance to the system frequency through the correlation sorting on the premise of the assistant increasing attribute so as to judge the disturbance source. The method can quickly and effectively position the disturbance source of the power plant, specifically arrives at the unit, provides decision-making assistance for the next action of a dispatcher, and guarantees the normal and safe operation of a power grid.

The invention provides a layout structure for promoting pixel defection detectivity of a thin film transistor substrate, comprising multiseriate first data lines and multi-row first scanning lines; a plurality of pixels are defined by utilizing the multiseriate first data lines and the multi-row first scanning lines; a thin film transistor is formed in each pixel; a gate electrode, the first scanning lines and a common electrode line of the thin film transistor are simultaneously formed by utilizing a first metal layer; a drain electrode, a source electrode and a first data line of the thin film transistor are formed on the thin film transistor by utilizing the second metal layer; the drain electrode of the thin film transistor is connected with a pixel electrode; the common electrode line is arranged adjacent to the first scanning line and the first data line, and is partially covered by the pixel electrode; a virtual data line is positioned between the first scanning line and the common electrode line, and is connected with the pixel electrode, can effectively and rapidly position short circuit of the GC short, and effectively solves the trouble having to be found by human eyes in the prior art.

The invention provides a multi-agent search method based on an elite subset guide vector fireworks algorithm. The method comprises the following steps: initializing the positions of N intelligent agents, simulating and generating explosion sparks in an intelligent agent sensing range by using a firework explosion mechanism, guiding the intelligent agents to move to the positions of the explosion sparks and elite guide sparks through a path planning method, and sensing the target source signal intensity of the intelligent agents; selecting the best position from all the positions of movement of each agent as the next-generation movement position of the agent; and repeating the intelligent agent searching and moving process until the target source is searched or the maximum number of iterations is reached. The method is applied to a gas leakage source positioning problem, and an intelligent agent group searches a target source according to a firework explosion process. According to the elite subset guide vector fireworks algorithm provided by the invention, an original guide fireworks algorithm is improved, so that the search capability of the intelligent agent is greatly improved, and a target source can be quickly and effectively positioned.

A device for placing disks contained in a cartridge comprises a disk cartridge receiving area, a piston, means for moving the piston between a high position and a low position to enable, in the state in which a disk is positioned in the path followed by the piston during the transition from the high position to the low position of the piston, the disk to be placed on a surface vertically in line with the disk, a transfer system capable of transferring a disk from the cartridge in the cartridge receiving area to a location, arranged in the path to be followed by said piston, the said transit area. The device comprises a disk motion assist guide positionable in the transit area and moveable in a direction parallel to the up and down direction of movement of the piston.