180 results about "Starlight" patented technology

The invention provides an integrated navigation method combining starlight refraction positioning with inertial navigation in a near space, and belongs to the technical field of starlight refraction navigation positioning. The method comprises the following steps: firstly, determining a state model of starlight refraction positioning in a near space by taking an error equation of an inertial navigation system of a near space aircraft as a state equation; designing a near space starlight refraction positioning algorithm, identifying a refraction star by using a star sensor on the aircraft, acquiring a refraction angle as a measurement, and establishing a measurement model of starlight refraction positioning in a near space; and obtaining the optimal estimation value of the system state variable by using an extended Kalman filter (EKF) method. The method has the advantages of being suitable for near space, high in reliability, high in autonomy and the like, and can be finally used for pure astronomical positioning and astronomical / inertial integrated navigation.

The invention discloses a robust adaptive fusion filtering astronomical attitude determination method and system, and belongs to the technical field of radio navigation. The method comprises the following steps: constructing an integrated navigation model of a starlight and inertial integrated navigation system based on Lie group description; obtaining an observation residual error and an observation residual error covariance of a corresponding mode; robust and adaptive mode parallel sub-filtering is carried out, and posterior states and covariances in the two modes are updated; updating the mode probability; and fusing the updated posterior state with the covariance to obtain fusion output of parallel sub-filtering, taking the fusion output of the parallel sub-filtering as final estimation of the starlight and inertial integrated navigation system based on Lie group description, and outputting an astronomical attitude determination result containing an azimuth angle, a pitch angle and a roll angle. The high-precision astronomical attitude determination method has strong adaptability, strong robustness and accuracy when coping with complex noise and measuring outliers, and can realize high-precision astronomical attitude determination of starlight and inertial integrated navigation in a complex dynamic environment.

The invention relates to the technical field of camera on-orbit calibration, in particular to a fisheye camera on-orbit calibration method based on a starlight vector, which comprises the following steps of: S1, acquiring a plurality of star maps observed by a fisheye camera on orbit, and extracting and denoising star points to form a star point set; s2, according to fisheye imaging distortion distribution, a star point located in an imaging center area is selected from a star point set, and a starlight vector is constructed based on image point coordinates of the star point in combination with star catalogue data subjected to space-time deviation and propagation path deviation correction; and S3, performing local geometrical relationship star point matching on the starlight vector in the step S2. According to the method, the multiple star maps observed by the fisheye camera in orbit are obtained and processed to form the star point set, so that the problems of poor in-orbit calibration applicability and low precision caused by the fact that most traditional fisheye camera calibration methods adopt a ground pre-calibration or space reference object arrangement mode are solved.

The invention relates to a jewelry metal surface treatment process which comprises the following steps: S1, after jewelry is processed into a blank, carrying out primary processing and polishing, and after the surface is flattened, carrying out secondary fine polishing until the surface is smooth and free of recesses and scratches; s2, the polished jewelry is put into a sulfuric acid solution to be subjected to acid pickling so as to remove impurities on the surface, and then the jewelry is washed with clear water; s3, carrying out sand blasting treatment on the washed jewelry by adopting glass quartz sand of 53-150 microns and glass quartz sand of 150-220 microns, so that an antique visual effect is generated on the surface; s4, the jewelry subjected to sand blasting is subjected to wire drawing on a wire drawing machine of a tungsten steel wire drawing needle or a diamond wire drawing needle, so that uniformly-distributed wire bottom textures are generated on the surface; s5, acid pickling and water washing in the step 2 are repeated; and S6, the jewelry subjected to wire drawing is subjected to sand blasting treatment through diamond powder of 40-220 micrometers, impact concave facets which are evenly distributed are generated on the surface, and the surface generates the starlight shining effect under natural light.

1. Name of the designed product: charging pile (starlight). 2. Use of the designed product: used for charging vehicles. 3. Design points of the designed product: in shape. 4. Pictures or photos that best show the design points: perspective view.

1. Name of the design product: shoe sole (dancing of starlight). 2. Use of the design product: the design product is a shoe sole. 3. Design points of the design product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

1. Name of the designed product: diamond ring (starlight). 2. Use of the designed product: for wearing decoration. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

1. Name of the designed product: necklace (starlight). 2. Use of the designed product: for wearing decoration. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1. 5. The top view has been embodied in the perspective view 1; the bottom view has been embodied in the perspective view 2, and the top view and the bottom view are omitted.

1. The name of this design product: Straw Cup (Starlight). 2. Purpose of this design product: This design product is used for holding and drinking milk or other liquids. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention discloses a starlight-level high-definition optical lens, which belongs to the technical field of optical lenses and comprises a first lens, a diaphragm, a second lens, a third lens, a fourth lens and a photosensitive chip which are sequentially arranged along an optical axis from an object plane to an image plane, and the first lens, the third lens and the fourth lens are plastic aspheric lenses. The second lens is a glass spherical lens; the focal lengths of the first lens, the second lens, the third lens and the fourth lens are negative, positive, positive and negative in sequence. According to the optical lens, the FNo. is 1.6, the resolution reaches more than 4 million pixels by 80%, night vision confocal and purple halo weakening are achieved, and the cost is low.

1. Name of the designed product: spliced coat (starlight · ancient Shu). 2. Use of the designed product: clothing for wearing. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo that best shows the design points: front view. 5. Other circumstances that need to be explained: the designed product is a thin product, so other views are omitted.

1. The name of the design product: hub (starlight). 2. The use of the design product: for automobile hub. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention provides a method, a device, equipment, a medium and a product for positioning a target object in a vehicle, the method is applied to a single-station single transmit-receive antenna, and the method comprises the following steps: sending a preset satellite flash SLP signal, and receiving an echo signal formed by the reflection of the target object to the satellite flash SLP signal through the single-station single transmit-receive antenna; according to the echo signal, obtaining the distance between the target object and the single-station single transceiver antenna; comparing the distance between the target object and the single-station single-transmitting-receiving antenna with a preset distance interval range of each seat in the vehicle relative to the single-station single-transmitting-receiving antenna, and determining an alternative seat where the target object is located; acquiring a target signal-to-noise ratio corresponding to the target object under the condition that a plurality of alternative seats exist; and according to the target signal-to-noise ratio and the gain corresponding to each alternative seat, determining a target seat where the target object is located in the plurality of alternative seats. Therefore, the target position of the target object can be accurately identified.

The present invention provides a star point centroid extraction method and system based on optimal background estimation. The method obtains a star point image, performs image preprocessing on the star point image, and obtains a preprocessed image; performs Gaussian surface fitting on the starlight grayscale value in the preprocessed image to obtain preliminary coordinates (x0, y0) of the starlight; adopts a region optimization method to select a symmetrical circular area with the preliminary centroid coordinates (x0, y0) and the pixel point coordinates (x1, y1) with the maximum grayscale as diameters, and uses the obtained symmetrical circular area as a preferred area; adopts a distance-weighted nonlinear centroid method to locate the target light spot image in the preferred area to obtain the centroid coordinates of the light spot; the present invention has high positioning accuracy for target light spots with uneven grayscale distribution, has strong noise resistance, can reduce the adverse effects of irregular grayscale distribution on positioning, improves the positioning accuracy of the centroid method, effectively reduces the amount of calculation, and ensures real-time performance.

The present invention relates to the field of combined navigation technology, and provides a shipborne inertial and starlight integrated calibration method and equipment based on external velocity damping. The method comprises obtaining a horizontal damping network of an inertial navigation system; obtaining the inertial navigation output latitude and inertial navigation output longitude of the inertial navigation system based on the horizontal damping network; selecting a horizontal damping parameter, establishing a state equation and a measurement equation of the star-inertial system under horizontal damping conditions; obtaining a Kalman filter based on the state equation and the measurement equation; obtaining a ship maneuvering condition through inertial navigation information, and when the ship maneuvering condition is met, performing integrated calibration of the inertial navigation system through the star-inertial combined system, and completing error estimation and compensation through the Kalman filter. The present invention compensates for the dynamic attitude measurement error of the inertial navigation by designing a Kalman filter with horizontal velocity damping, assisting star-sensitive equipment in achieving high-precision positioning, completing the integrated calibration of the star-inertial combined system, and maintaining the navigation accuracy of the inertial navigation system for a long time.

1. Name of the product in this design: Downlight (Starlight). 2. Purpose of this design: for lighting. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. The rear view, left view, right view, and top view of Design 2 are the same as those of Design 1. The rear view, left view, right view, and top view of Design 2 are omitted. 6. Design 1 is designated as the basic design.

The utility model discloses an interior ceiling lamp for an automobile, which comprises a decorative mask, an arc-shaped bright inner lens, a base and an LED (light-emitting diode), the base and the decorative mask are respectively positioned on two opposite sides of the arc-shaped bright inner lens, and a PCBA (printed circuit board assembly) is mounted on the surface, facing the arc-shaped bright inner lens, of the base. The surface, facing the arc-shaped bright inner lens, of the PCBA is provided with an LED, the surface, facing the PCBA, of the arc-shaped bright inner lens protrudes to form a plurality of continuously-connected six-edge faces, and each six-edge face comprises six triangles connected in sequence. The included angle between each triangle and the surface, facing the PCBA, of the arc-shaped bright inner lens is not smaller than 30 degrees. According to the interior ceiling lamp for the automobile, the multi-face prismatic light face is used on the arc-shaped bright inner lens, the multi-face prismatic light face is used on the light receiving face, so that light emitted by the PCBA is refracted to achieve the starlight effect, and the transparent face cover on the outermost layer is provided with textures for decoration.

The invention discloses a light spot detection image processing method, system and device based on a differential frame and a medium. The method comprises the following steps: acquiring an original image frame sequence; the original image frame sequence comprises a plurality of original image frames, and each original image frame corresponds to an original sequence number; according to the original image frame sequence, calculating to obtain a differential image frame sequence; the differential image frame sequence comprises a plurality of differential image frames; performing light spot detection on the differential image frame sequence to obtain a first light spot image frame and a second light spot image frame; the first light spot image frame is a differential image frame of the target light spot detected for the first time, and the second light spot image frame is a differential image frame of the target light spot detected for the second time; according to the interval time between the first light spot image frame and the second light spot image frame, whether the target light spot is caused by scanning of the opposite satellite laser terminal or not is judged. The method can effectively eliminate interference of stray light such as starlight, avoids the situation of false capturing, is simple and effective, and consumes less resources.

1. Name of the designed product: study table (starlight). 2. Use of the designed product: for study table. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

This application belongs to the field of visual compensation technology and provides a visual compensation method under starlight conditions. Through pre-sampling and grayscale variance statistics, it achieves the determination of starlight compensation intervals and the dynamic division of target and background regions in the imaging plane. It adopts a sampling method with different exposure time series for the target and background regions to obtain multiple frames of original sampled data and pixel integration time. Based on the pixel integration time, it constructs a spatially variable gain matrix and completes inter-frame registration and gain normalization processing to separate signal and noise components in the image. The signal component is used as a sparse sampling stream, and the pixel variance distribution of the noise component is used as a hyperparameter of the variational inference algorithm. Image reconstruction is completed through probability density gradient estimation, making the variational inference process match the actual noise distribution characteristics under starlight conditions, thereby improving the quality and reliability of visual imaging under starlight conditions.

The invention relates to a power transmission line standing tower type channel three-dimensional early warning device and method. A starlight-level night vision camera, a differential GNSS acquisition module, a tweeter, an electric holder, a three-dimensional laser radar, a power supply module and a communication module are all connected with a control module, and the communication module is connected to a background server. The storage battery and the solar cell panel are connected to the power supply module. The early warning method comprises the following steps: S1, issuing an instruction; s2, image acquisition; s3, analyzing hidden dangers; s4, issuing a three-dimensional laser point cloud data acquisition instruction; and S5, performing early warning analysis and warning. According to the invention, accurate distance measurement and timely early warning can be carried out on construction and external damage hidden dangers in a power transmission line channel, equipment power consumption is reduced, equipment service life is prolonged, and on-site operators are reminded to pay attention to construction safety.

1. Name of the designed product: packing box (moonlight starlight). 2. Use of the designed product: used for fruit packing box. 3. Design points of the designed product: in shape. 4. Picture or photo showing the design points: perspective view.

The invention belongs to the technical field of ceramic wall and floor tiles, and particularly relates to dry granular glaze with a starlight effect as well as a preparation method and application of the dry granular glaze. The dry granular glaze comprises dry granules I and dry granules II, the dry granules I are prepared from the following chemical components in percentage by mass: 55 to 58 percent of SiO2, 8 to 12 percent of Al2O3, 2 to 4 percent of CaO, 1 to 2 percent of MgO, 1 to 3 percent of K2O, 1 to 2 percent of Na2O, 15 to 25 percent of ZrO2, 3 to 5 percent of B2O3, 0.5 to 1.5 percent of CeO2, 0.2 to 0.8 percent of LiCO3, 0.1 to 0.5 percent of Y2O3 and 2 to 4 percent of BaCO3. The rock plate prepared from the dry granular glaze provided by the invention has the advantages of uniform distribution of dry granules, good starlight effect, excellent low-concentration acid and alkali resistance, excellent high-concentration acid and alkali resistance, excellent household chemical reagent and swimming pool salt resistance and excellent pollution resistance.

A method for measuring and calibrating installation errors of a star sensor and an inertial navigation system relates to the technical field of integrated navigation, and specifically comprises the following steps: establishing a star sensor body coordinate system, an inertial navigation system body coordinate system and a space reference coordinate system; the method comprises the following steps: constructing an attitude transfer model containing an installation error angle based on a coordinate conversion relation of a star sensor and an inertial navigation system in space; an observation equation is constructed on the basis of an attitude matrix output by a star sensor and navigation parameters output by an inertial navigation system, and online identification and calibration of installation errors are achieved in combination with a linear Kalman filtering algorithm. The method does not need to depend on external reference equipment, accurate solving of the installation error can be completed through measurement data of the star sensor and the inertial navigation system carried by a carrier, the method is suitable for an inertia / starlight integrated navigation system of an aircraft, and the three-axis installation error generated when the star sensor and the inertial navigation system are fixedly connected and installed can be accurately identified and calibrated.

1. The name of the design product: mobile phone shell (starlight). 2. The use of the design product: for protecting mobile phones. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: usage state figure 1.

The invention discloses a super-starlight-level high-definition optical lens, and relates to the technical field of optical lenses. The invention relates to a super-starlight-level high-definition optical lens. The number of lenses with focal power in the super-starlight-level high-definition optical lens is eight. The optical lens is sequentially provided with a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from an object plane to an image plane in the light direction. The second lens and the third lens are combined to form a balsaming lens, and the fourth lens and the fifth lens are combined to form a balsaming lens; the first lens, the fourth lens and the fifth lens are all glass spherical lenses, and the others are all plastic aspheric lenses. The super-starlight-level high-definition optical lens provided by the embodiment of the invention meets the requirements of a lens starlight function, no out-of-focus at high and low temperatures, high resolution, night vision confocal and purple halo.

1. The name of the present design product: spotlight (starlight). 2. The use of the present design product: for indoor and outdoor lighting. 3. The design points of the present design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

1. Name of the designed product: Stand-up collar sport shirt (starlight · ancient Shu). 2. Use of the designed product: clothing for wearing. 3. Design points of the designed product: in the combination of shape and pattern. 4. Picture or photo that best shows the design points: front view. 5. Other circumstances that need to be explained: the designed product is a thin product, so other views are omitted.