87 results about "Horizon line" patented technology

A flight instrument displays azimuth information in combination with horizon information and other optional information such as altitude and / or airspeed. Azimuth information is displayed using an elliptical pattern placed below a horizon line displaying horizon information. The horizon information may be based on gyro enhanced vertical speed and / or vertical axis information. The elliptical pattern may be representative of a horizontal circular heading indicator viewed from above and behind the circular indicator. In one embodiment, the elliptical azimuth pattern moves in response to movement of the horizon line to maintain position below the horizon line. Airspeed and / or altitude information may be displayed at the sides of the screen area using a circular arc display pattern

The invention discloses a barrier and travelable area detection method based on a vehicle-mounted binocular camera. The barrier and travelable area detection method comprises the following steps of S1, taking an image through a binocular camera; S2, preprocessing the image; S3, calculating the final matching cost of each pixel point in the image; S4, calculating through the final matching cost to obtain a v-disparity map; S5, determining the horizon line and the road scope by means of the v-disparity map; S6, calculating to obtain a barrier-road intersecting line in the road scope; S7, determining the scope of the current lane and the outermost lane; S8, calculating to obtain the height of the barrier on the part above the barrier-road intersecting line; S9, determining the image areas which belong to the same barrier; and S10, outputting the road area information and barrier information. Under the premise that disparity precision is not reduced, unnecessary binocular disparity map calculation is avoided, and therefore the real-time performance of the algorithm is greatly improved, and the barrier and travelable area detection method based on the vehicle-mounted binocular camera is suitable for fields of driving warning, automatic driving and the like.

A method of presenting information, capable of displaying an image including one or more objects being in the vicinity of the ground, the method including the steps of: acquiring viewpoint information; acquiring visual line information; acquiring posture information; acquiring additional information related to the object position information; calculating horizon line information in the image; determining a reference line on the image on the basis of the horizon line information and the posture information; calculating distance information from the viewpoint position to the object; determining a display attribute of the additional information including a display mode of the additional information and a display position of the additional information in the image with respect to the reference line; and presenting the additional information on the basis of the display mode so as to reveal a relationship between the additional information and the object when displaying the image on the display unit.

The invention provides a 2D seismic data all-horizon automatic tracking method based on unsupervised classification. The method includes reading in 2D seismic data and control horizon data; searching an extreme point of a 2D seismic data waveform; fitting the seismic waveform based on the searched extreme point and according to the Chebyshev polynomials, and taking a fitting coefficient as the eigenvector; and performing eigenvector-based unsupervised classification on the fit seismic waveform to obtain the all-horizon automatic tracking result of the 2D seismic data. The method further includes polishing discontinuous seismic horizon through relevant searching; obtaining a complete horizon line through a horizon segment merging method; and eliminating overlapping through relevant searching. According to the method, a manual intervention mechanism is eliminated and complete 2D seismic data all-horizon automatic tracking is achieved.

The invention discloses a forest fire smoke detect method based on colorful CCD image analysis, which comprises that based on some front frames of obtained image, finding the horizon line in the image to represent the spatial precision information in the image, based on Mallat method, analyzing the high-frequency information loss character, using fusion algorism to fuse the high-frequency information loss character, smoke low-frequency motion character, and color character, to be accumulated on time axis. Based on the position information and accumulated result of horizon line, the invention extracts smoke area under spatial precision compensation, to mark the smoke source area and smoke area. The invention can improve the reliability of smoke image detection, and reduce the undetected rate and the error rate of smoke detection, with significant benefits for forest fire automatic detection.

The invention belongs to the technical field of image processing and geographical information system, relating to an estimation method of latitude and longitude based on sun shadow track in a video; the method comprises the following steps: a natural image sequence or a video frame is firstly obtained, and a track point of the shadow for each image frame is detected; a plurality of vanishing points are then determined, and the horizon line is fitted; mutually vertical vanishing points are fitted, and affine rectification and projection rectification matrixes are calculated; measured and rectified world coordinates are restored; the track of the shadow point in the world coordinates is then fitted, sundial design is referred, and the latitude is estimated by using similarity relation; the time difference is calculated by using the extreme point of a secondary curve so as to efficiently restore the latitude and longitude information of the photographed images. The method has lower complexity and higher precision, which is a method for realizing latitude and longitude estimation by using the natural image sequence or video frame and can obtain the latitude and longitude information of the photographed images according to the position of uncalibrated shadow.

The invention relates to a system for controlling the in situ orientation of a vehicle headlamp equipped with a light source that is fixed to a mobile reflector and with a camera that is fixed to the mobile reflector and connected to an image processing unit. The invention also relates to a method of controlling the in situ orientation of a vehicle headlamp, comprising the following operations: recording of images of a road scene in front of the vehicle, processing of at least one image of the road scene, determination, from said processed image, of a measured horizon line of the road scene, comparison of this measured horizon line with a predetermined setpoint horizon line and determination of a distance between the measured horizon line and the setpoint horizon line, adjustment of the orientation of the headlamp so that the distance between the measured horizon line and the setpoint horizon line tends towards zero.

The invention discloses a building method of ground simulating testing field of star landing detector, which is characterized by the following: selecting address of the testing field; designing and building the remote operating information; testing the outdoor experiment of the detector and synthetic ability reference of project; providing communication chain and entire 360 deg horizon line environment for remote operation of moon cruise detector; supplying full-natural light for main navigation of the detector; pre-burying the detective goal for moon measuring radar with different depths; realizing remote control of star landing detector; testing the sand and dust -proof ability of cruise detector and adapting ability under high and low temperature and dry environment; solving the problem of bad reliability for the star landing detector.

A flight instrument and associated method where vertical speed information is combined with gyro information to produce gyro enhanced vertical speed information that is displayed to a pilot. The gyro information may include a pitch rate gyro and may include an azimuth rate gyro. The pitch rate gyro and azimuth rate gyro may be combined to yield a corrected pitch rate in turns. In one embodiment, the display is an airplane symbol that moves relative to a horizon line responsive to the gyro enhanced vertical speed information. The horizon line may also tilt in response to the azimuth rate gyro.

The invention discloses an unmanned aerial vehicle landing method based on an optical flow method and horizon line detection. The unmanned aerial vehicle landing method includes the steps that (1) video images shot by a camera fixed to the bottom of an unmanned aerial vehicle in the flying process are subjected to image preprocessing; (2) each image is subjected to line detection, and horizon line information in the images is obtained; (3) the horizon line information is calculated, so that the current flying attitudes of the unmanned aerial vehicle are obtained; (4) attitude information of the unmanned aerial vehicle is detected out through the optical flow method; (5) in combination with a motion model of the unmanned aerial vehicle, the unmanned aerial vehicle attitudes obtained through the optical flow method and horizon line detection are filtered through an extended Kalman filter method, and correct horizon line information is sorted out; and (6) the autonomous landing process based on the unmanned aerial vehicle is achieved. The unmanned aerial vehicle landing method is used for the situation of detecting a fixed target through a dynamic object in the flying process, and the optical flow method based on gradient is used so as to well cooperate with movement of a detector. Compared with traditional visual algorithms based on horizon line detection, the unmanned aerial vehicle landing method based on the optical flow method and horizon line detection can effectively improve accuracy in the landing process and is applicable to autonomous landing of the unmanned aerial vehicle.

A method of preparing an ophthalmic lens for mounting in a surround of an eyeglass frame includes an acquisition step of acquiring a first longitudinal profile of the surround and an orientation parameter of the first longitudinal profile relative to a horizon line or a verticality line of the surround, and an edging step of edging the ophthalmic lens so as to form a generally profiled engagement ridge of desired section that extends along a second longitudinal profile (25) that is derived from the first longitudinal profile and of orientation that is derived from the orientation parameter. The method includes a determination step of determining at least one singular portion (Z1-Z12) of the second longitudinal profile as a function of the orientation parameter. During the edging step, the engagement ridge is locally pared away in the singular portion.

The present invention includes an artificial horizon device including a sensor unit with a movable platform, at least one actuator linked to the platform, and one or more sensors located on the platform for sensing the position orientation of the platform relative to an external mass or the motion of the platform. The horizon device also includes a processing unit signally connected to the sensors and the at least one actuator. The processing unit is adapted to receive signals from the sensors and send signals to the actuators to move the platform to a horizontal orientation. The horizon device also includes either a display unit comprising an indicator of a horizon line which substantially corresponds to the horizontal orientation of the platform or a secondary device.

The invention discloses a correction method for geometric distortion of projection image on curve screen. Set location points of even arrangement on curve screen and determine a center location point; project reticle by projector to screen and center their center points; project some horizon lines to screen, every horizon line is superposition to location points of horizon arrangement; it is similar for the vertical lines and points of vertical arrangement. The method can correct the nonlinear distortion image well; image effect is true to nature; observer with stereoscope can feel virtual stereo scene like standing in real world; the immerse feeling is strong.

Systems and methods for performing airport surface collision-avoidance. A wingtip-mounted camera allows the pilot to positively ascertain that the wingtip will clear objects located in the video. An exemplary system implemented on an aircraft includes a wingtip module having a camera that generates a video stream and a communication device that transmits the generated video stream. A processor receives the video stream and generates a reticule for the video stream. A display device simultaneously presents the video stream and the reticule. The reticule includes a horizon line and is based on a focal length of a lens of the camera and height of the camera above ground. The reticule includes curved and / or straight distance lines and curved or straight travel lines. The travel line(s) correspond to at least one aircraft component or a zone of importance and are based on location of the camera and trajectory of the aircraft.

A method of presenting information, capable of displaying an image including one or more objects being in the vicinity of the ground, the method including the steps of: acquiring viewpoint information; acquiring visual line information; acquiring posture information; acquiring additional information related to the object position information; calculating horizon line information in the image; determining a reference line on the image on the basis of the horizon line information and the posture information; calculating distance information from the viewpoint position to the object; determining a display attribute of the additional information including a display mode of the additional information and a display position of the additional information in the image with respect to the reference line; and presenting the additional information on the basis of the display mode so as to reveal a relationship between the additional information and the object when displaying the image on the display unit.

The invention relates to a sequencing batch jet-flow driven biochemical reactor, which comprises a reaction tank, a water inlet pipe, an immersible pump, a first-grade suction jet device with a double-gas-channel annular nozzle, a mixed solution guide pipe, a second-grade multi-nozzle radial jet-flow aerator, a gas supply device, a buoyancy driven water decanter and a driving winch of the water decanter; the first-grade suction jet device with the double-gas-channel annular nozzle is provided with an annular nozzle and inner and outer gas channels; the second-grade multi-nozzle radial jet-flow aerator is installed in the centre of the bottom of the reactor; the buoyancy driven water decanter is installed on the wall of the reaction tank over the horizon line of the reactor; and the driving winch of the water decanter is used for packing up or down the buoyancy driven water decanter through a driving rope. The sequencing batch jet-flow driven biochemical reactor disclosed by the invention can be used for increasing the aeration efficiency, accelerating the dynamic circulation of dynamic water and greatly increasing the mass transfer rate in the biochemical reaction process, so that the biochemical reaction efficiency is increased; and furthermore, the sequencing batch jet-flow driven biochemical reactor disclosed by the invention can also be used for treating various types of sewage, and can be flexibly combined with other sewage treatment processes.

The invention discloses a construction method of complex-structure blocky geologic model based on geologic rule constraint, comprising a horizon tracking step and a polygon cutting step. The horizon lines tracked by the horizon tracking step and the boundaries form the blocky geologic model through the polygon cutting step. The polygon cutting step comprises closing the horizon lines and the boundaries clockwise to form a plurality of polygons and processing a plurality of polygons through a cutting flow. The cutting flow for processing a plurality of polygons comprises regarding a plurality of polygons as an aggregation, taking out any two polygons in the aggregation for cutting, and putting back the cut polygons in the aggregation until all polygons in the aggregation do not intersects mutually, and finally completing the cutting flow. The method is capable of describing complex underground geologic structure, synchronously effectively performs intersection calculation on the horizon input by a user, and identifies the closed surface of the complex geologic model through a computer graphics concept.

A display system of an aircraft, including a flare guiding cue and related method are provided. The display system includes a display unit; and an assembly for generating a display on the display unit, configured to dynamically display, on the display unit, at least one horizon line, a slope scale of the aircraft relative to the horizon line, and a speed vector symbol, representative of the slope of the aircraft relative to the horizon line. The display generator is configured to display, upon approaching a landing strip, a flare guidance symbol, the position of the flare guidance symbol on the display unit depending on the topographical slope of the approached landing strip.

The invention discloses a solar cell panel bracket convenient for angle adjustment. The solar cell panel bracket comprises a solar cell panel body, wherein a mounting plate is arranged on the lower surface of the solar cell panel body, a first rotating device is fixedly connected to the lower surface of the mounting plate, one ends of the front and rear surfaces of the first rotating device are respectively fixedly connected with the front and rear surfaces of the inner wall of a U-shaped plate, and the lower surface of the outer wall of the U-shaped plate is fixedly connected with the top endof the first connecting rod. According to the solar cell panel bracket, by virtue of the common action of a first pulley, a first fixed plate, a first screw column, a first screw cap, a second connecting rod, a third telescopic rod, a first movable rod, a first rotating shaft, a second fixed plate and a first spring, the adjustment of an angle between the solar cell panel body and the horizon line is realized, so that the utilization efficiency of the solar cell panel body is improved to a certain extent, and the convenience is provided for the lives of people.

The invention provides a primary flight display instrument in which a symbol—such as a small star or triangle—indicates the bearing to the current waypoint in the flight navigation plan. The display may also show a bearing indication symbol showing a follow-on waypoint in the flight plan. These symbols are preferably located on the horizon line of the primary flight display (or the attitude indicator) providing bearing to the current waypoint in the flight plan and / or to the following waypoint. An image processing unit generates the display, including earth ground and horizon, in a view substantially conformal with a VMC view from the aircraft.

The invention relates to the field of exercise equipment and specifically to outdoor fitness equipment. An exercise machine is in the form of a stationary rigid metal construction which is unable to be disassembled and which includes a support frame (1) having an axle (2). The axle (2) is in the form of two coaxial half-axles provided on the outer side of levers (3). The latter are pivotally mounted on the uprights of the support frame (1). Limiters (4, 5) for limiting the movement of a weight (6) are in the form of transverse connections between the levers (3) and are installed on both sides of the axle (2). A load guide (7) is provided between the limiters (4, 5) and is in the form of a bent rod having two rectilinear portions and an arc. The load guide (7) is installed in such a way that the axle (2) of the support frame passes through the common center of gravity of the entire set of weights (6) located to the left side of the arc. The tilt angles of the rectilinear portions of the guide (7) are at an angle which exceeds the level of the horizon line by no less than 2-3 degrees irrespective of the position of the levers (3). The weights (6) are positioned on the guide (7) with the necessary percentage ratio on both sides of the axle (2). A limiter (8) of lever (3) position is in the form of a U-shaped frame and is affixed to the levers (3). A bench (9) is mounted on the support frame (1). An exercising individual is thus safer and it is possible to regulate loads on levers with grips.

The invention relates to a high-precision intermittent material sending machine, and belongs to mechanical equipment for manufacturing plastic foam. The high-precision intermittent material sending machine provided by the invention is characterized by being provided with a second ventilation plate, a second rib plate, reverse scrapers and reverse scraper bases, wherein the second ventilation plate and the second rib plate are both parallelly positioned below a first ventilation plate and a first rib plate, and the second ventilation plate is provided with a second ventilation groove; the second ventilation groove is a through groove and is regularly reduced from the external center on the diameter direction, the two reverse scrapers are respectively obliquely fixed on the left and right sides of the reverse scraper bases in a reversal manner, and the two reverse scrapers are of a plate-shaped structure, are arranged on the same horizon line and are positioned on the centre epinastic position of an agitator shaft in a material sending barrel body; and the reverse scraper bases are fixed on the agitator shaft and can rotate along the rotation of the agitator shaft. The high precision intermittent material sending machine provided by the invention has the advantages that the whole structure design is reasonable, the use is convenient and reliable, the precision is high, the size distribution of steam air input is uniform, the heating of a raw material is uniform, and the error of material sending weight is small.

The embodiment of invention provides an automatic moving correcting method of an elongated rod. The method comprises the steps of adjusting a first straightening roller and a second straightening roller to be axially parallel to each other, wherein a first included angle is formed between the first straightening roller in the axial direction and the horizon line, and the width of a clearance between the first straightening roller and the second straightening roller is equal to the diameter of the elongated rod; horizontally inserting one end of the elongated rod into the clearance; rotating the first straightening roller and the second straightening roller in the same direction; and correcting the elongated rod in the horizontal direction in an automatic moving manner. According to the method in the embodiment, the two straightening rollers are adjusted to be in the direction that a certain angle is formed with the horizon line, and then the two straightening rollers are rotated, and the elongated rod is horizontally positioned in the clearance between the two straightening rollers, and thus the automatic moving correcting of the elongated rod can be realized.

The invention discloses an intelligent changeable rumble warning traffic marked lines. The intelligent changeable rumble warning traffic marked lines are formed by two rows of parallel lamp groups which are embedded on the ground; the lamp groups are formed by a plurality of lamp units; the lamp units are formed by a plurality of cube lamp covers which are arranged above the horizon line and a plurality of base bodies which are arranged under the horizon line; the length, the width and height of the cube lamp covers are from 1.5 to 3 cm; LED (Light Emitting Diode) lamps are embedded on bilateral sides of the lamp covers along the traffic marked lines; a white-basic-color lamp and a yellow-basic-color lamp are arranged in every LED lamp; distance between the lamp covers of every lamp unit is from 1.5 to 5 cm. According to the intelligent changeable rumble warning traffic marked lines, embossments are formed on the road surface due to the lamp bodies and an uneven road condition is formed in the traffic marked lines, so that when tires of vehicles pass the marked lines, an effect that the vehicles drive on a rumble strip is generated, drivers are warned that the vehicles are changing lines or departing from existing driving tracks, and the purpose of reducing traffic accidents is achieved.

The invention discloses a multifunctional football training goal. The multifunctional football training goal comprises a goal and mobile stations. The goal comprises two symmetrical partitioning blocks, and the number of the mobile stations is two. One partitioning block is vertically arranged on one mobile station. The goal is rectangular, and a hole is formed below the middle of the goal. A groove is formed in a plane opposite to each partitioning block, a rotary shaft is arranged under the outer side of each partitioning block, and each rotary shaft is connected with a first motor. The mobile stations are arranged under the horizon line, tracks are arranged under the mobile stations, and the direction of the tracks is the same as the length direction of the goal. A second motor is arranged on the side face of each mobile station and is connected with a lead screw. The football training goal is suitable for an indoor training ground, the goal can be quickly converted into a standard goal from a round hole, the width of the goal can be freely controlled, operation can be conducted in a fully-automatic mode, manual intervention is not needed, the conversion speed is high, the application range is wide, interestingness is high, safety and practicality are realized, and the enthusiasm of trainers can be improved.

The invention relates to a tailor processing method of a clothing material. The clothing material is laid flat, so that certain inclination is formed between the direction of warp yarns or weft yarns of the clothing material and the horizon line, wherein when the included angle between the direction of the warp or weft yarns and the horizontal line is about 45 degrees, the position is relatively good; and in the case that the density and texture of the warp and weft yarns are same, when the included angles between the warp yarns and horizontal line and between the weft yarns and the horizontal line are both 45 degrees, the position is best, and drawing and tailor can be performed. After the clothing tailored by adopting the method is worn, the weight of the clothing is not solely supported by the warp or weft yarns, but supported by the warp and weft yarns together, which greatly improves the supporting performance of the clothing material. When the clothing is subjected to external tension to stretch longitudinally, the length of the clothing increases, and the clothing contracts laterally; and contrarily, the width increases and the clothing contracts longitudinally. Under different tension conditions, the clothing can flexibly stretch and contract in length and width flexibly, and no mater whether the clothing material contains elastic fibers, the elasticity, tenacity and drapability of the clothing can automatically increase. The clothing can adapt to stretch bending change of a human body, is more fit to the body, and the comfort degree is obviously improved.

The invention discloses a robot capable of accomplishing complete assembly work. The robot comprises a workbench, a first telescopic pole arranged on the workbench, an electronic rotary shaft arranged on the first telescopic pole, a vacuum sucker arranged on the electronic rotary shaft and used for fixing an assembled element, an electric screwdriver arranged at the upper end of the assembled element, a movable assembly for fixing the electric screwdriver and a transport assembly arranged beside the workbench and used for transporting the assembled element. The assembly robot provided by the invention can automatically regulate an angle, relative to the horizon line, of the assembled element under the control of a controller, and can control the position, relative to the assembled element, of the electric screwdriver according to the shape of the assembled element and the needed mounting position of the assembled element, so that the complete assembly is independently accomplished; and automatic distribution is realized by the transport unit, so that labor power is saved and the working efficiency is improved.

A method of aiding the piloting of an aircraft during a maneuver, bringing about an increase in the attitude of the aircraft, is carried out automatically and repeatedly. According to the method, an attitude deviation is determined by subtracting a first value of attitude from a determined current attitude of the aircraft. A horizon line is presented on a display screen of a head-up display device, superimposed with the environment seen in front of the aircraft, as is an indication of the attitude deviation. The first value of attitude corresponds to the minimum value of (1) an optimal value of attitude at the end of the maneuver and (2) a value of attitude of protection against a rear collision.