270results about How to "Accurate positioning accuracy" patented technology

The invention relates to a wheel-type X-ray flaw detection robot device which comprises an X-ray flaw detection device, a remote wireless transmission device, a computer control device, a differential GPS (Global Positioning System), a fuel battery (or lead acid battery pack) and a robot body, wherein four infrared cameras are arranged on the robot body, and real-time images are remotely transmitted to an operator through video transmission equipment; a direct current voltage regulator is adopted in the controller of an X-ray generator; and the regulator is connected with an inverter by a tube voltage regulation knob, so that the tube voltage of the X-ray generator can be regulated. The operational control and operational state of the robot body are as follows: a digital data radio is adopted to transmit filed signals to an upper control computer; video signals are displayed on a display with visual display and convenient operation; isotope sources are not used, thereby meeting the requirement for environment protection; and a suspension system enables the robot body not to deflect and turn laterally on pipelines and rocks.

The invention provides a method which uses transient online diagnosis coupling frequency response to position the leakage of natural gas pipeline, and relates to a natural gas pipeline failure detection and positioning method which can solve the problems that the existing method for detecting and positioning the leakage of the natural gas pipeline can not detect in real time, has long detection period, low positioning precision and high error report rate; real-time pressure value and real-time flux value are respectively collected at the upstream and downstream of the pipeline; the real-time downstream pressure value and the real-time flux value when the pipeline runs stably are reduced by the practical real-time pressure value and the practical real-time flux value at the downstream; if both of the two differences exceed the valve value, the leakage is considered to occur, otherwise the values are collected again; an excitation pressure wave is generated at the downstream end of the pipeline and the wave speed of the response wave of the excitation pressure wave is gained; according to the wave speed of the excitation pressure response wave and the time difference when the excitation pressure response wave is transmitted to the upstream and the downstream, the position of the leakage point is gained. The measurement and collection of the values are completed by normal equipments and the method can be used both in the built pipeline or pipelines under construction.

The invention discloses a global fusion positioning method based on self-adaptive Monte Carlo and feature matching, which comprises the following steps of: extracting map line features in a grid map and storing the map line features in a map feature database; extracting the scan line features of a non-second frame of a laser radar scan map, and initializing the particle set pose of the self-adaptive Monte Carlo by adopting the estimated pose calculated by the first frame of the laser radar scan map; updating the pose and weight of the particles by adopting odometer data, a motion model, a laser radar scan map and a measurement model for a second frame of laser radar scan map; updating the initial pose of a part of particles in a particle set by adopting the estimated pose calculated by thelaser radar scan map for the remaining frames of the laser radar scan map; updating the weight of corresponding particles; and meanwhile, updating the pose and weight of the rest particles in the particle set by adopting the odometer data, the motion model, the laser radar scan map and the measurement model, and finally combining the two particle sets updated with the pose and the weight into a new particle set.

The invention provides an external cylindrical superfinishing machine. The machine comprises a frame, a workbench and an abrasive belt, wherein a transverse guide rail, a transverse sliding table, a transverse motion driving mechanism, a longitudinal guide rail, a longitudinal sliding table and a longitudinal motion driving mechanism; a headstock, a headstock center and a rotary driving mechanism are arranged on one side of the transverse sliding table; a tailstock, a sleeve, a tailstock center and a center adjustment mechanism are arranged on the other side of the transverse sliding table; an abrasive belt rack, an abrasive belt driving shaft, an abrasive belt driven shaft, an abrasive belt motor, a rolling abrasive belt wheel, a releasing abrasive belt wheel, a polishing wheel, a polishing wheel rack and a polishing motor are arranged on the transverse sliding table; one end of the abrasive belt winds the releasing belt wheel, and the other end of the abrasive belt moves around the polishing wheel and is fixedly arranged on the releasing abrasive belt wheel. The external cylindrical superfinishing machine has the beneficial effects of simple and compact structure, convenience in operation, integral operation stability and reliability and high processing accuracy, and cannot cause scrap of axial parts.

The invention discloses a full-automatic greasing and capping machine, relating to a device for adding grease and a dust cap to a bearing. A workbench is fixed on a machine frame; a mounting base is fixed on the workbench; the front part of the mounting base is provided with a material support plate; the upper part of the mounting base is provided with a control device; the left side of the workbench is provided with a material conveyor, and the right side of the workbench is provided with an unacceptable product removing device; according to the processing sequence, two greasing devices, a grease quantity detection device, two capping devices, a dust cap height detection device and a grease equalizer are sequentially arranged on the mounting base from left to right; turning devices are respectively arranged between the two greasing devices and between the two capping devices; and a front reciprocating device and a rear reciprocating device are respectively arranged below the workbench. The full-automatic greasing and capping machine disclosed by the invention integrates the stations and the mounting base into a whole, is high in positioning accuracy and facilitates debugging and installation of a fixture mold; and the total seal shell is convenient for cleaning and maintenance, thus, the invention has the advantages of strong dustproof capacity, low danger coefficient, low failure rate and high product qualification rate.

The invention belongs to the technical field of flexible robots, in particular to a granular-material-clogging-based hybrid driving rigidity-controllable continuum robot. The robot comprises a plurality of identical single continuum units which are connected end to end in series; each single continuum unit comprises a flexible supporting outer barrel which is provided with multiple flexible supporting outer barrel through holes and is internally coaxially provided with a plastic inner pipeline; a plurality of separation plates are arranged in an annular zone between each flexible supporting outer barrel inner wall and the outer wall of the corresponding plastic inner pipeline, so that each annular zone is divided into multiple sealing cavities which are filled with granular materials; manual pneumatic muscles are inserted in the plastic inner pipelines; upper and lower sealing end covers are provided with upper and lower steel wire passage holes as well as upper and lower sealing end cover through holes; the lower sealing end covers are provided with manual pneumatic muscle drafting holes and sealing cavity drafting holes; and the upper sealing end covers, the flexible supporting outer barrels and the lower sealing end covers are integrally connected by steel wire ropes. The granular-material-clogging-based hybrid driving rigidity-controllable continuum robot is high in supporting rigidity, wide in moving range and accurate in positioning precision.

The invention discloses a robot for ceramic tile seam beautifying. The robot for ceramic tile seam beautifying comprises a chassis, a main shell, a driving mechanism, a cleaning mechanism, and a seam beautifying mechanism and a seam pressing mechanism; the driving mechanism comprises four mecanum wheels, four running driving motors and an industrial camera; the cleaning mechanism comprises a cleaning cutting tool, a cutting tool motor, a rack, a gear, a geared motor, a sweep-up pipe, a dust suction box, an exhaust fan and an exhaust pipe; the seam beautifying mechanism comprises an electric push rod, a sealant drum, a drum motor and a nozzle; the seam pressing mechanism comprises a seam pressing motor and a seam pressing ball rod; and the running driving motors, the driving mechanism, the cleaning mechanism and the seam beautifying mechanism are all controlled by an intelligent control system. The robot for ceramic tile seam beautifying can complete polishing, dedusting, agent injecting, seam pressing and other procedures in the ceramic tile seam beautifying working one time, the defects of existing manual operations are changed, mechanical automatic operation is achieved, and the robot for ceramic tile seam beautifying not only is high in working efficiency, but also is good in seam beautifying effect, low in seam beautifying cost, and easy to popularize.

The invention provides an automatic punching machine and a punching method thereof. The automatic punching machine comprises a supporting base and a punching device positioned on the supporting base, and also comprises a material storage device positioned on the supporting base and used for storing raw materials, a conveying device positioned between the material storage device and the punching device and used for conveying the raw materials, a blanking device positioned behind the punching device and used for blanking and a material collecting device for collecting processed materials; the punching device comprises a first locating column with a locating function, a press plate with a locating correction function and a lower die with an air suction hole. The automatic punching machine is provided with the dual locating device and the die with levelling and stabilizing functions, so that the punching precision is greatly improved, the whole processing process is a full-automatic process, the manpower is saved, the production efficiency is also improved and the product quality is improved.

The invention relates to a heavy-duty isothermal forging hydraulic press, which comprises an upper transverse beam, a lower transverse beam, upright posts, a main cylinder, side cylinders and a slide block, wherein an upper baseplate is fixed on the lower plane of the slide block; and a movable workbench is arranged on the lower transverse beam. The heavy-duty isothermal forging hydraulic press is characterized in that the upper transverse beam and the lower transverse beam form a combined beam body structure; leveling cylinders are fixed on the four corners of the upper end of the upper transverse beam and the upper end of the lower transverse beam; each leveling cylinder is provided with an independent leveling control system; an upper knock-out device is arranged on the slide block; movable workbench positioning mechanisms are arranged on the lower part of the movable workbench body and in the lower transverse beam; and the movable workbench body is further provided with a movable workbench clamping device. The heavy-duty isothermal forging hydraulic press is characterized in that a combined transverse beam is light in weight and is convenient to transport and produce, and the manufacturing cost can be reduced; a leveling effect is achieved via the leveling cylinders, the leveling response time is shortened, and energy is saved greatly; through the upper knock-out device, successful demolding of workpieces can be realized, and the workpiece forging and pressing quality is ensured; and accurate positioning and stable running of a press workbench can be realized, and the production requirement of forging equipment for heavy-duty aviation forgings is met.

The invention discloses an indoor location and landmark semantic identification method based on behaviors. The method comprises steps as follows: on the basis of action modes of an indoor person, data of the designed action modes is collected by a built-in inertial sensor arranged in a smart phone, the data is subjected to preprocessing and characteristic extraction, and action sequences are identified by a support vector machine and are recognized as behavior patterns with a fuzzy pattern recognition algorithm; an initial locating point is determined according to WIFI signals, and an approximate walking track is determined with a dead reckoning method; the behavior patterns and locations are analyzed respectively; more accurate indoor location is realized by continuously updating landmarks, and the landmarks are subjected to semantic identification according to attributes of the landmarks. When the indoor pedestrian is located, drift errors produced through dead reckoning are corrected according to the behavior patterns and a landmark set. According to the method, the location errors can be corrected by the landmarks, disturbance of environmental factors and noise of the sensor are effectively treated, and precision of indoor location is remarkably improved.

The invention discloses a particle filter-based improved RAIM (Receiver Autonomous Integrity Monitoring) anti-deception jamming method. The invention relates to an improved RAIM anti-deception jamming method. For solving the problems of measurement failure of a single satellite, positioning misleading of a receiver by a control resolving flow, and neglecting of dependency and similarity among remaining vectors by RAIM, the invention provides a particle filter-based improved RAIM anti-deception jamming method. The particle filter-based improved RAIM anti-deception jamming method comprises the following steps: 1, forming a formula described in the specification; 2, obtaining a Rho n and three-dimensional coordinates of the satellite; 3, calculating a parameter described in the specification; 4, calculating y (m); 5, calculating w (m); 6, selecting wmax; 7, calculating a parameter described in the specification; 8, calculating a maximal visible satellite SLmax; 9, calculating a judgment threshold gamma; 10, judging the existence of a deception satellite; 11, estimating a sequence number of the deception satellite; and 12, if the mark F of the deception satellite is equal to 1, removing jamming, carrying out positioning resolving, and if F is not equal to 1, carrying out positioning resolving. The particle filter-based improved RAIM anti-deception jamming method is applied to the field of improved RAIM anti-deception jamming.

The invention relates to a method for manufacturing a powder metallurgy supporting seat, which sequentially comprises the following steps: (1) pressing a supporting seat base body (1), and arranging a structure for placing a transition block (2) on the supporting seat base body (1); (2) processing the transition block (2); (3) arranging the transition block on the structure for placing a transition block (2) on the supporting seat base body (1), positioning soldering flux between the supporting seat base body (1) and the transition block (2), and then putting the supporting seat base body (1) assembled with the transition block (2) in to a sintering furnace at the temperature of 1000-1300 DEG C under the condition of vacuum or filling with assistant welding gas sintering atmosphere for sintering for 5-50min; (4) after welding, measuring the size and accuracy to determine whether machining and adjusting are needed for correcting the position of the transition block (2) on the supporting seat base body (1); and (5) carrying out steam treatment on the supporting seat base body (1) welded with the transition block (2); therefore, the manufacturing process of powder metallurgy supporting seat can be completed. Compared with the prior art, as the transition block is welded with the supporting seat base body by a powder metallurgy sintering and soldering method, the supporting seat base body has high position, accurate locating accuracy and good connecting strength; and the whole welding process is simple and easy to operate.

The invention relates to a novel ICF (initial confinement fusion) pellet detection device and a positioning method. The device comprises a laser, a beam expander, a first bean splitter, a second beamsplitter, a third beam splitter, a plane mirror, a to-be-detected pellet, a lens, a CCD image sensor, a computer, a high-power LED and a diaphragm. The pellet is moved at the internal of 10 mu m, a backlight projection image in each position is collected, image preprocessing work such as filtering and aperture extraction is performed, the acutance of an area near a bright ring is calculated, and the position with the largest acutance meets the object-image conjugate relation. The pellet is moved in the interval of 10 mu m at the interval of 1 mu m continuously after being moved to the position. The steps of collection, image preprocessing and acutance calculation are repeated, the pellet is moved to the new position with the largest acutance, and positioning is finished. The novel pellet detection device and the positioning method are applicable to conventional cylindrical vacuum space and can realize automatic positioning quickly and accurately.

The invention belongs to the technical field of machining and provides a workpiece feeding device. The workpiece feeding device comprises a clamping mechanism and a feeding mechanism, a cam of the feeding mechanism is provided with a cam groove, the lower end of a rocker is hinged to a rocker supporting seat, one end of a connecting rod is hinged to the upper end of the rocker, and the other end of the connecting rod is hinged to a slider. The slider is bilaterally slidably arranged on a guide rail, and a roller is rotatably arranged on the connecting rod and positioned in the cam groove. A left clamping jaw and a right clamping jaw of the clamping mechanism are symmetrically and rotatably arranged on a clamping support frame, and a left intermittent gear and a right intermittent gear are meshed with each other. One end of a left supporting rod is hinged to the clamping support frame, a left hinge pin is arranged on the left clamping jaw and positioned in a left U-shaped groove, one end of a right supporting rod is hinged to the clamping support frame, and a right hinge pin is arranged on the right clamping jaw and positioned in a right U-shaped groove. The workpiece feeding device has the advantages of quickness and accuracy in feeding of workpieces 25, reasonable structure and high reliability.

The invention discloses a method and a system for generating edge seam path and edge seam topological structure of raster image, which belongs to technical field of image edge detection. The method comprises S1, selecting a raster image, and carrying out edge detection calculation by calculating a gradient magnitude diagram to obtain boundary points of the image; S2, selecting a boundary point of step S1, and carrying out neighborhood tracing according to gradient magnitude of pixels to obtain the second boundary point; S3, converting the edge seam gradient of the second boundary point in the vertical direction in reference to the first boundary point to the edge seam path; and S4, repeating the steps of S2 and S3 until the edge seam path of the whole raster image is completed; and recording information of the edge seam path and intersection points to generate the edge seam topological structure. The boundary generated by the method has high location accuracy, good continuity and abundant boundary information, and can meet the application requirement for boundary detection in each hot field of image processing.

The invention is a supersonic image fire training system especially relating to carrying on live firing or simulated firing train on the moving image. The system includes supersonic image big screen, signal gathering processor, allocation resolution industrial control computer, communication circuit, image control and display computer, CCD camera, video image gathering card, projector; the supersonic image screen has a frame, on the two surfaces of the frame there arranges with high purity rubber board, a acoustic cavity is formed in the middle of the frame, some acoustic sensors arrays are arranged on the upper and lower rows of the cavity, a temperature compensation sensor is arranged in the acoustic cavity, the acoustic sensor and temperature compensation sensor are connected to the signal gathering processor; the processor includes a signal amplifying and filtering circuit, region judging circuit, counting circuit, microchip MCU, temperature gathering compensation circuit, allocation resolution industrial control computer, and power switcher.

A method for implementing GPS surveying field work planning by using three dimensional topographic information is provided, comprising the steps of: obtaining three dimensional topographic information according to the location of a GPS receiver; obtaining maximum topographic elevation angle information from the GPS receiver to the terrain for each azimuth using the three dimension topographic information; obtaining elevation angle of satellites from the GPS receiver according to the satellite ephemeris or almanac; determining whether observation is usable according to the maximum topographic elevation angle information along the satellite bearings, and the elevation angle of satellites; and estimating the positioning accuracy according to the usable satellite observations.

Provided are a method and a device for robot controller pulse synchronous adjustment. The method includes the steps of receiving a command for carrying out synchronous adjustment sent by a robot controller; acquiring command time of the robot controller; carrying out pulse synchronous adjustment according to a contrastive result between the command time and a periodic quantity of the robot controller; and carrying out pulse output calculation according to the result of the synchronous adjustment. The invention further provides a device for robot controller pulse synchronous adjustment. The fact that motion of a robot body is controlled through a motor according to a scheduled target is achieved. Through the embodiment of the method and the device, the motor controls the motion of the robot body according to the scheduled target, the motor stably operates on actual operation of spot welding robots and arc welding robots, and positioning of the robots is accurate.

The invention discloses a method and system for improving the positioning accuracy of a navigation satellite. The method for improving the positioning accuracy of the navigation satellite includes the following steps that: positioning data are calculated according to satellite signals obtained by a GNSS receiver; the GNSS receiver uploads the obtained positioning data to a CORS data processing and controller center in real time and requests positioning differential data; the CORS data processing and control center sends requested positioning differential data to the GNSS receiver according to the positioning data and the positioning differential data request; the GNSS receiver corrects the positioning data according to the positioning differential data; the GNSS receiver sends the corrected positioning data circularly to the CORS data processing and control center so as to obtain higher-precision positioning differential data; and the GNSS receiver distributes corrected and precise positioning data. The method and system for improving the positioning accuracy of the navigation satellite can correct and eliminate common error terms in real time and effectively reduce the influence of correlated errors, so as to obtain more accurate positioning results and improve positioning accuracy.

The invention discloses a rectify deviation control system and method based on a GPS data track. The system comprises a vehicle central control system and a server. The vehicle central control systemcomprises a data acquisition module and a vehicle control module. The server comprises a data receiving module and a rectify deviation data analyzing module. The vehicle central control system transmits the collected vehicle information and vehicle control information to the server through the Internet of Things, and the server analyzes and processes the received information to control the vehicleoperation. The method comprises the following steps of: 1. obtaining positioning information of a positioning point; 2. performing analysis and judgment on the data rectify deviation of the GPS position information track; 3. judging whether the change number of the pointing track data of the GPS position is less than 10%; and 4. obtaining the final track of the GPS data according to the analysisof the rectify deviation data analyzing module. The invention provides the rectify deviation control system and method based on the GPS data track, which is small in positioning error range, accuratein positioning, low in positioning cost and high in efficiency.

The invention discloses a multi-module position module based on the satellite position, which comprises a GPS OEM board with up-and -down structure and a DR circuit plate, wherein the two parts are connected with each other by the interface; the multi-module position module also possesses a position beacon interface, a matching electric map interface, an angle speed measuring unit, a car mileage and reverse signal matching receiving circuit, a MCU CPU, a computer communication interface and a power managing module.