514results about How to "precise positioning" patented technology

The invention discloses a method of mobile phone navigation in a library and a system of the mobile phone navigation in the library, mainly aiming at solving the problem that a reader is time-wasting for searching books in the library and is easy to be lost. The method for searching the books in a navigation way comprises the steps of: computing information of a target object and information in a data base in a comparing way to confirm a target position, and computing information of a reference object and information in the data base in a comparing way to confirm a reader position; and planning an optimum book reaching route according to the information of the target position and the information of the reader position, and giving a book searching route prompt from the current position of the reader to the position of a series of target books, so that the navigation is realized. The book searching navigation system mainly comprises a bar code (including a one-dimension code and a two-dimension code), a smartphone, a database, a server and the like.

The related display micro browser page drift method for touch-screen mobile device comprises: the browser detects the action affair of screen moving, records and process the touch pen touching and leaving screen; if the pen moving in one hyperlink of current Web, it clicks the link; or else, it takes page drift process. This invention simplifies user operation, locates precisely, and can prolong the screen lifetime.

The invention discloses an unmanned vehicle and an unmanned vehicle positioning method, device and system. The method comprises that first laser point-cloud reflection value data which matches the present position of the unmanned vehicle is obtained, and the first laser point cloud reflection value data comprises first coordinates of laser points and laser reflection intensity values corresponding to the laser points; the first laser point cloud reflection value data is converted to laser point cloud projection data in a horizontal plane; a first matching probability of the laser point cloud projection data within a predetermined range in the laser point cloud reflection value map is determined by taking the pre-determined position of a prior positioning position in a laser point cloud reflection value map as an initial position; and the position of the unmanned vehicle in the laser point cloud reflection value map is determined on the basis of the first matching probability. Thus, the present position of the unmanned vehicle can be positioned accurately.

A releasable pick-up device (30) for assisting in positioning an electrical connector (1) on a circuit board by a vacuum-suction nozzle, comprises a rectangular plate (31) having a flat upper surface (311) to be manipulated by the nozzle and an opposite lower surface (312), and a pair of retaining portions (32) extending from opposite transverse sides of the plate. Each retaining portion forms a pair of downwardly projecting legs (320) having a pair of respective retaining feet (321) formed at free ends thereof and protruding in directions opposite to each other.

The present invention is a wafer transfer system that transports individual wafers between chambers within an isolated environment. In one embodiment, a wafer is transported by a wafer shuttle that travel within a transport enclosure. The interior of the transport enclosure is isolated from the atmospheric conditions of the surrounding wafer fabrication facility. Thus, an individual wafer may be transported throughout the wafer fabrication facility without having to maintain a clean room environment for the entire facility. The wafer shuttle may be propelled by various technologies, such as, but not limited to, magnetic levitation or air bearings. The wafer shuttle may also transport more than one wafer simultaneously. The interior of the transport enclosure may also be under vacuum, gas-filled, or subject to filtered air.

The invention discloses a speed limit sensing and vehicle speed control device which comprises a speed limit signal generation and on-vehicle receiver, a vehicle speed sensor, an over-speed prompt and control device and an ECU, wherein the signal generation and on-vehicle receiver comprises a speed limit launcher and an on-vehicle GPS, and the over-speed prompt and control device comprises an air throttle control motor and an accelerator pedal sensor; the on-vehicle GPS, the vehicle speed sensor, the air throttle control motor and the accelerator pedal sensor are all connected with the ECU, the speed limit launcher launches and edits GPS signals with road speed limit information, the on-vehicle GPS receives the GPS signals and sends the GPS signals to the ECU, and when the current vehicle speed which is transmitted to the ECU by the vehicle speed sensor is larger than the road speed limit, the ECU controls the air throttle control motor to run and then controls the current vehicle speed. The device realizes reasonable control of existing devices by electric control to realize the control of vehicle speed limit, and utilizes precise positioning of GPS to realize precise sensing and receiving of speed limit.

The invention discloses an intelligent file cabinet, a file management system and a file positioning method. The intelligent file cabinet comprises a cabinet body, an article storing unit, an RFID read-write module, a position indicating module, electronic tags and a main control system. The main control system is respectively connected with the RFID read-write module and the position indicating module; the article storing unit comprises a tray and at least two partition boards fixed to the tray; the RFID read-write module comprises a reader-writer, a multiplexer, a power divider and at least two antennas, the antennas are fixed to the tray and tightly attached to the partition boards, the reader-writer is connected with the main control system and meanwhile is connected with the multiplexer, the multiplexer is connected with the power divider, and the power divider is connected with the antennas. According to the intelligent file cabinet, the file management system and the file positioning method, files can be guided to be put into the cabinet and to leave the cabinet, file boxes and / or files are accurately positioned, the situation that the file boxes are dislocated can be prompted, the position state is prompted, and the intelligent file cabinet, the file management system and the file positioning method have the advantages of being high in safety, accurate in positioning, capable of achieving quick checking in real time and the like.

The invention discloses an exact locating method for fault points of a submarine cable. The exact locating method for the fault points of the submarine cable comprises the following steps of: realizing real time online monitoring of the submarine cable by utilizing BOTDR (brillouin optical time domain reflectometer) or BOTDA (brilouin optical time domain analysis); carrying out combined analysis by utilizing strain/temperature information, a submarine topography and geologic structure and construction details carried by a brillouin scattering signal; and extracting feature points, and establishing a database so as to largely improve the location precision. After the database is established, complex data query and calculation operations can be saved as long as a submarine cable has failure, thus the fault position can be quickly and exactly located, the submarine cable can be repaired and the labors and materials are largely saved.

The invention relates to a Chinese sign language recognition method based on kinect. The method comprises the following steps of acquiring depth information of hands and the 3D (three-dimensional) coordinate information of bone joint points of main parts of a human body through kinect; respectively acquiring hand characteristic information, position characteristic information and direction characteristic information by processing the characteristics of the acquired information; acquiring a hand element, a position element and a direction element for the acquired hand, position and direction characteristic information by adopting different polymerization algorithm, carrying out the element matching by utilizing a neighboring method and a template matching method adopting an Euclidean distance as a similarity measurement criterion, and determining the hand sign implication. Due to the adoption of the method, a purpose for effectively recognizing the Chinese sign language with vast vocabulary can be realized; and moreover, each element is independently acquired in parallel, so that the Chinese sign language can be recognized in real time. By implementing the method, different sign languages can be recognized in real time, so that Chinese deaf-mute can effectively communicate with other people.

A linear motor includes a magnet unit and a coil unit. The magnet unit includes two magnet arrays oppositely parallel and symmetrically located on a magnetic yoke: a first and a second magnet array. The coil unit is disposed in a magnetic gap between the two magnet arrays. In a spatial rectangular coordinate system defined by X, Y and Z axes, the coil unit includes a first and a second coil array arranged in a stacked manner in the Z-axis direction and staggered from each other by a distance of ΔP in the Y-axis direction. ΔP satisfies: when a control system charges the coil unit with a desired current, the coil unit generates a control force along the Y-axis direction, another control force along the Z-axis direction, and a moment about the X-axis direction, which may reduce a magnetic flux leakage and provide higher driving forces, making the linear motor generate required three degrees-of-freedom control force or control torque, and further improve vertical and horizontal magnetic fluxes in the magnet array.

The present invention belongs to the alarm technical field for the optical fiber oil and gas pipeline providing an alarm sensing system for distributed optical fiber oil and gas pipeline. The technical proposal of the invention is that: the coherent light emitted from the high coherent length tunable laser enters the input end a of the optical circulator through the sensing optical fiber, outputs to the optical fiber raster reflector entering from the first output end b of the optical circulator and the antiradar reflectivity optical fiber raster reflector, then returns to the optical circulator, outputs to the photodiode by the second output end c of the optical circulator. The signals of the photodiode is magnified by the amplifier and then analyzed the required information by the FFT sideband filter and the spectrum analyzer, finally displayed and prewarned by the computer control system and the prewarning. The invention is mostly used in the alarm sensing system for distributed optical fiber oil and gas pipeline which has simple manufacturing sturcture, accurate position, long monitoring distance, no large monitoring range, high sensitivity and can be set sensitivity in advance.

A base member for use in manufacturing an ink jet recording head, which includes a supply port, an ejection outlet, a liquid flow path for directing liquid supplied from the supply port to the ejection outlet, and an ejection pressure generating element, disposed in the liquid flow path, for ejecting the liquid. The supply port is formed as a through-opening in a substrate on which the ejection pressure generation element is provided. The base member includes a recessed portion formed on the side of the substrate provided with the ejection pressure generation. The recessed portion extends from an edge of the supply port to a neighborhood of the ejection pressure generation element. A protection layer is provided at least on a portion of the substrate surface constituting the recessed portion.

The invention provides a tracing and analyzing method for urban air pollutants. The tracing and analyzing method comprises the following steps: collecting monitoring data of various pollutant concentrations in the air by monitoring points arranged in a city; calculating a daily prevailing wind direction and major pollution time periods by combining the monitoring data, and air quality indexes of acceptor points and neighboring country stations; selecting mini-type stations in an upwind wind direction and adjacent four wind direction regions according to the daily prevailing wind direction andthe major pollution time periods; carrying out time correction on the selected mini-type stations; combining the mini-type stations subjected to the time correction and data of the acceptor points tocalculate sequencing indexes; selecting the mini-type stations with the front k sequencing indexes and carrying out empathized analysis; calculating a concentration contribution rate from a mini-typestation periphery pollution source to the corresponding mini-type station and returning back front N pollution sources with the highest concentration contribution rate. According to the tracing and analyzing method provided by the invention, the contribution rate of the pollution source to the mini-type station can be directly displayed and pollution degrees of the different pollution sources aredisplayed, so that accurate positioning of the pollution sources is realized.

The bezel (1) is interchangeable via a bayonet device. The shoulder (11) of the middle part (12) is provided with a circular groove (14) and at least two sinks (15) opening out partially into said groove (14). The bezel (1) includes at least two feet (2) positioned to engage in the sinks (15), said feet (2) each including a notch (4) open radially at the emergence of the sinks (15). A locking ring (20) provided with an outer member (21) for rotational manipulation, is positioned in the groove (14), one edge (23) of said ring (20) having a substantially equal thickness to the aperture of the notches (4) and including recesses (24) for the feet (2) to pass and the other edge (25) including a gorge (26) facing a gorge (16) of the middle part (12), the two gorges (16; 26) housing a click spring (30) of the ring (20).

The invention relates to an information promotion service platform and a service method based on a GPS, and belongs to the communication system value-added service field. The service platform comprises a buyer client, a seller client, a data bank, a data processing module connected with the data bank and an information receiving module and an information sending module which are connected with the data processing module. The information receiving module is used for receiving and sending real-time demand information of the buyer and the seller and GPS geographic position coordinates to the data processing module, the data processing module classifies various information, the data bank is used for saving the various information of a buyer and a seller, and the information sending module is used for sending the information to the buyer and the seller. According to the information promotion service platform and the service method based on the GPS, a GPS technique is used, so that seller information is sent to the buyer client automatically after the buyer enters the radiation radius of the seller, and the seller commodity information spreading pertinence is improved to a large extent.

The invention discloses an automatic positioning and screwing mechanism of main and auxiliary seat frames and a control method of the automatic positioning and screwing mechanism. The automatic positioning and screwing mechanism comprises a base, wherein the base is horizontally provided with a first guide rail and two front-back propelling mechanisms in the forward and backward direction, the first guide rail is provided with a main supporting base and an auxiliary supporting base, the two front-back propelling mechanisms can propel the main supporting base and the auxiliary supporting base to move on the first guide rail respectively, the main supporting base is provided with a second guide rail and a first left-right propelling mechanism, the second guide rail is provided with a main installation base, the auxiliary supporting base is provided with a third guide rail and a second left-right propelling mechanism, the third guide rail is provided with an auxiliary installation base, the auxiliary installation base is provided with a rotary mechanism, the second left-right propelling mechanism can propel the auxiliary installation base to move left and right on the third guide rail, and the main installation base and the auxiliary installation base are respectively provided with a CCD visual positioning device and a screwing device. The automatic positioning and screwing mechanism of main and auxiliary seat frames and the control method of the automatic positioning and screwing mechanism can achieve assembly and screwing of seat basins and seat frames of a main seat and an auxiliary seat, bring convenience to automatic control and management, and improve production efficiency.

The invention relates to a laser welding clamp and a protecting device for a titanium alloy thin-walled workpiece in a shape of a complex space. The laser welding clamp and the protecting device comprise a clamp, a gas protecting device and a lower supporting base. The clamp is a back contact pattern. The outer surface of the back contact pattern is matched with the inner surface of a welding piece. A first workpiece to be welded and a second workpiece to be welded are fixed on the clamp through a plurality of pressing plates. A seam to be welded between the first workpiece to be welded and the second workpiece to be welded is right opposite to a vent groove on the back contact pattern. The gas protecting device comprises a protecting lateral plate, a flexible copper cover and a lower sealing plate. The protecting lateral plate, the flexible copper cover and the lower sealing plate form a sealed cavity on the periphery of a welded workpiece. A back vent pipe is arranged in the vent groove, and a front vent pipe is arranged between the flexible copper cover and the welded piece. The flexible copper cover can move along a preset track under the driving of a laser head, and sealing protection of a whole welding process can be achieved. The laser welding clamp and the protecting device solves the problem of being long in a machining period of the clamp through numerical control machining, high in cost and hard in achieving of gas protection of the welding seam of a complex track.

The invention provides a robot vision navigation technology. The technical scheme for solving the technical problems is as follows: a simple pattern with a direction sign is projected to an indoor top wall through strong light with a special color or special light such as infrared invisible light, an upward camera is arranged on a robot and shoots indoor top images continuously, calculation is performed on the shot images, a pixel with the same color as a sign pattern is found out, then two-dimensional coordinates of a core sign point in the sign pattern are determined according to the direction sign of the pattern and are taken as coordinates of the robot relative to the core sign point at the moment, and later, relative two-dimensional coordinates of walking paths are stored, so that accurate path planning and navigation can be realized through matching with an obstacle avoidance sensor; the pattern with the direction sign is simple and has a bright color, so that the coordinates of the core sign point in the sign pattern can be efficiently processed without need of very high hardware cost and very complex algorithm, and the problem about accurate navigation of the robot can be solved with lower cost and higher efficiency.

The invention provides a chain saw comprising a shell body, a saw chain, a sprocket, a guide plate which is matched with the sprocket and is used for supporting and guiding the saw chain, a cover plate which is matched with the shell body to clamp the guide plate so as to prevent the guide plate from shaking in a vertical direction and a sprocket tensioning mechanism; the sprocket tensioning mechanism is integrally arranged in the shell body movably, so that the position states of the saw chain, the guide plate, a tensioning nut, the sprocket and other parts can be observed in a whole assembly process, the positioning is accurate, and the operation is simple and quick. The sprocket tensioning mechanism comprises the tensioning nut, a transmission part and a tensioning hand wheel; and an angle between the input shaft and the output shaft of the transmission part is more than 0 degree and less than 180 degrees. The tensioning hand wheel is connected with the transmission part, the transmission part drives the motion of the tensioning nut which is fixedly arranged on the guide plate so as to adjust a distance between the guide plate and the sprocket and tension the saw chain, and the comfort of operation is improved.

The invention discloses a terminal device for a track record. The terminal device comprises a sensing module, an intelligent processing module and a display module, wherein the intelligent processing module is connected with the sensing module; the sensing module is used for sensing a moving track of the terminal device; the intelligent processing module is used for starting the sensing module and generating a track record of the terminal device according to the moving track sensed by the sensing module; and the display module is used for displaying the track record. According to the terminal device provided by the invention, the sensing module is used for realizing an automatic track recording and positioning function; the positioning function is realized without utilizing a GPS (Global Positioning System) signal sent back by a satellite or any other wireless mobile network; accurate positioning is supplied to a user; the hardware is simple; the cost is low; the real-time control is more easily realized; and no any blind spot area exists.

The invention discloses an axle housing accessory welding tooling fixture. The fixture comprises a platform, an axle housing positioning mechanism and a welded part positioning mechanism; the axle housing positioning mechanism comprises horizontal positioning mechanisms which are arranged on both ends of the platform and a vertical positioning mechanism which is arranged between the two horizontal positioning mechanisms; the welded part positioning mechanism comprises a bottom welded part positioning mechanism and a vertically welded part positioning mechanism; the bottom welded part positioning mechanism comprises a support base and a self-centering positioning mechanisms which are arranged on both sides of the support base; the vertically welded part positioning mechanism comprises a part fixing mechanism and a regulating mechanism. According to the axle housing accessory welding tooling fixture, a plurality of accessories can be clamped and positioned simultaneously, so that the problems that the efficiency is low, the workload is heavy and errors are easily produced when the accessories are respectively positioned are solved. The axle housing accessory welding tooling fixture has the advantages that positioning is accurate, the workload of a worker is reduced, the production efficiency is improved, and the cost is reduced.

The invention discloses an automation device capable of implanting radioactive particles continuously. A linear module, a sliding block and a ball screw are connected into a whole. A motor is fixed to the top end of the linear module and connected with the ball screw, a middle adapting piece and the sliding block are fixed, a supporting plate is fixed to the back of the linear module, a quick locking nut is fixed to the top end of the supporting plate, a needle core holding frame is connected with the middle adapting piece together, a needle core is fixed in a clamping groove in the needle core holing frame, a detachable clip supporting frame is fixed to the bottom of the supporting plate, a detachable clip is fixed in the detachable clip supporting frame, a needle core guide pipe is located at the top of the right end of the detachable clip and communicated with a particle channel, the particles are arranged in a particle bin and compressed by a spring connected with a particle compression shaft, a clip cover and the detachable clip are connected together, and a needle sheath positioning piece is fixed to the bottom of the detachable clip. The automation device can achieve fully-automatic implantation of the radioactive particles, is easy to operate and suitable for being connected with puncture needles provided by different manufacturers as well.

The invention discloses an automatic crimping structure of a FOG liquid crystal screen. The automatic crimping structure comprises a base plate, a carrying tool, and a crimping device, the surface of the carrying tool is provided with a groove for containing and limiting a to-be-detected liquid crystal screen and a guiding groove for guiding and limiting a FPC of the to-be-detected liquid crystal screen, the crimping device comprises a clamping portion, a driving portion, and a signal transmission portion, the clamping portion comprises a clamping fixed part fixedly connected with the carrying tool and a clamping movable part movably connected with the clamping fixed part, the signal transmission portion comprises a signal switching probe and a signal line, the guiding groove guides the FPC of the to-be-detected liquid crystal screen to the clamping portion, the driving portion drives the clamping movable part to clamp or loosen a connector of the to-be-detected liquid crystal screen, the signal switching probe is arranged on the clamping movable part and can be connected with the connector of the to-be-detected liquid crystal screen, one end of the signal line is connected with the signal switching probe, and the other end of the signal line is electrically connected with a control terminal. According to the automatic crimping structure, automatic control is realized, the positioning is accurate, the precision is high, the liquid crystal screen can be lit at each connection, and the test efficiency and the screen-lighting success rate can be greatly increased.

The embodiment of the invention discloses a system and a method for positioning failures of communication network equipment based on alarm information. The method comprises the following steps that a resource management system synchronizes the stored related resource information of various kinds of communication network equipment and bearer circuits in a communication network to a middle base unit according to a preset period; the middle base unit converts the synchronized related resource information according to the requirements of a comprehensive alarming system on the format of alarm position information by using preset conversion rules, and transmits the converted related resource information to the comprehensive alarming system; the comprehensive alarming system stores the converted related resource information in a local database, performs resource association when receiving the alarm information, acquires the related resource information associated with the alarm position information in the alarm information from the local database, and displays the acquired related resource information on an alarm detail interface. According to the embodiment of the invention, the alarm position can be rapidly and accurately determined.

The invention discloses a bridge crane self-adaptation track controller with the tracking error restraint and a method. Firstly, a smooth and continuous S-shaped track is selected for a trolley; then, the self-adaptation track controller is designed according to the energy shaping point to guarantee the trolley tracking target rack; and finally, an additional item is introduced in the self-adaptation track controller to guarantee the tracking error of the trolley to be in the allowed range all the time. According to the controller and the method, it can be guaranteed that the tracking error of the trolley is in the allowed range all the time, and good control performance, uncertainty for system parameters and adaptability to the external disturbance are achieved.

The invention discloses an underwater positioning method based on single acoustic beacon distance measurement; the method comprises the following steps: an underwater vehicle carries out slope distance measurement with an acoustic beacon in a fixed position via an underwater acoustic communication set at a fixed frequency, the acoustic beacon sends self depth to the vehicle, the vehicle combines the acoustic beacon and self real time depth so as to calculate the depth difference and horizontal distance between the vehicle and the acoustic beacon; secondarily, in a navigation process, the vehicle uses a compass and a Doppler tachymeter to obtain self accuracy course and speed, thus obtaining the accurate navigation locus of the vehicle in certain period; finally, the vehicle uses the rangefinding sequence and the curse as constraints, uses the acoustic beacon position as reference, and matches and positions a real time relative navigation locus in an acoustic beacon coverage area, thusdetermining the present position. An existing underwater acoustic positioning method has more elements, is complex in structure, high in cost, and a curse reckoning method has accumulated errors andneeds the start point position information in calculation; the underwater positioning method based on single acoustic beacon distance measurement can solve said problems.

The invention provides a shrinkage fit and positioning tool for a stator core and a casing, belonging to the technical field of machinery. Therefore, a conventional shrinkage fit and positioning toolcan reliably position. The shrinkage fit and positioning tool for the stator core and the casing comprises an upper base, a lower base and at least two columns. A support panel is slidably connected onto the columns. An elevating driving source is arranged on the upper base. A downward installing seat is arranged on the support panel. The bottom of the installing seat is equipped with a positioning boss allowing the casing to sleeve. The center of the installing seat is provided with a perforating hole. The positioning boss is equipped with at least three sliding channels extending in a radialdirection to communicate with the perforating hole in circumferential direction. Each sliding channel is slidably connected with an internally-supporting sliding block. A telescopic guide rod is arranged in the perforating hole in a penetrating manner. The top of the installing seat is provided with a telescopic driving source. The installing seat is further equipped with a limiting structure. The lower base is fixed with a positioning seat which is coaxial to the installing seat. A positioning structure capable of positioning the stator core is arranged on the positioning seat. The shrinkagefit and positioning tool has better circumferential positioning accuracy and stability.

The invention provides an aortic valve device conveyed by a catheter. The aortic valve device comprises a main support, wave leaflets and a skirt. The valve leaflets are fixed to the inner side of the middle of the main support. The skirt is fixed along the periphery of the inner side of the main support and fixed to the valve leaflets. An upper horn mouth structure in a three-valve form is formed by the upper end of the main support. Three circular connection jaws used for loads of the main support are arranged at the tail end of the horn mouth structure. A lower horn mouth structure used for reducing outward expanding of perivalvular leakage is arranged at the bottom end of the main support. Three lower end circular connection jaws are arranged at the lower end of the lower horn mouth structure. The aortic valve device further comprises a positioning ring located on the lower side of the main support and used for conducting positioning. The positioning ring comprises three V-shaped or U-shaped arc sections. The ends of the V-shaped or U-shaped arc sections are connected to form an annular shape. Three positioning circular connection jaws are formed at the ends. The lower end circular connection jaws are connected with the corresponding positioning circular connection jaws through flexible positioning lines respectively.

The invention relates to a welding clamper which uses steel band to pack, with installment space reduction function, and longitudinally weld the coiled plate into cylinder, wherein said clamper comprises that: frame, spindle, positioning block for welding and positioning sheet which will be detached when the steel band is positioned; the steel band coiling device is mounted on the track of clamper, formed by steel band, worm device, and tension wheel; said steel band can be coiled to move longitudinally, to apply different work pieces; the clamper is formed by compressing plate, wedge block and cylinder, to clamp two opens of cylinder on the spindle. The invention has high efficiency and accuracy position.

The invention provides a positioning fixture tool which is used for drilling and milling gold of an end cover of an electric generator and comprises a clamping device and a positioning device statically connected with the clamping device, wherein the clamping device is used for fixing the end cover and comprises a pull rod (1), a press block (2), a panel (4), an air cylinder (5), a long side plate (6), a short side plate (7) and a positioning table positioning pin (8); the positioning device comprises a positioning table (a1) and a positioning pin (a2); the panel (4), the long side plate (6) and the short side plate (7) from a support mechanism of the clamping device; and the pull rod (1) penetrates through the press block (2), the positioning table (a1) and the panel (4) and is connected with the air cylinder (5). By the aid of the tool, when the end cover of the electric generator is placed on a drilling and milling processing center, the positioning is accurate, the placing is convenient, the tool universality is high, the preparation time for product switching is short, the stability, the reliability and the safety are high with the adoption of air compression operation, and the production efficiency and the product quality are improved.