Abstract: A zero calibration method includes: adding, based on a first forward kinematics model of a robotic arm of a robot, zero deviations of each joint to form a second forward kinematics model, and simultaneously solving the second forward kinematics model and the first forward kinematics model to obtain an end deviation function; sending target end pose instructions to the robotic arm in a current zero point situation, and acquiring a spatial deviation of an actual position of an end; inputting position information of each joint angle and the spatial deviation, after each stop of motion of the end, into the end deviation function, and performing phase shifting to obtain an objective optimization function; and solving the objective optimization function to obtain a zero deviation value.

Abstract: A camera module is provided. The camera module may be separately used as a camera, or may be applied to a terminal device such as a mobile phone or a tablet computer, or a vehicle-mounted device. The camera module includes an optical lens component, a light filtering layer, an image sensor and a drive module. The optical lens component is configured to receive a light beam from a photographed object, and transmit the light beam to the light filtering layer. The light filtering layer is configured to move a position under the drive of the drive module, and respectively transmit light signals filtered at different positions to the image sensor. The image sensor is configured to receive the light signals at the different positions from the light filtering layer, and determine image information based on the light signals at the different positions.

Abstract: The present disclosure relates to a Cu—Zn-SSZ-13 molecular sieve composite catalyst and a preparation method thereof. Firstly, in situ synthesis is conducted by an one-step method and the template agent TMAdaOH is removed. Then a processed diatomite filter aid containing a SSZ-13 molecular sieve seed is added to improve the molecular sieve yield and thus reduce the cost. Finally, the Cu—Zn-SSZ-13 molecular sieve composite catalyst is prepared by substituting ammonium nitrate with ammonium dihydrogen phosphate or diammonium hydrogen phosphate through a counter-ion exchange method. The reaction performance of the catalyst in a temperature range of 100-600° C. is better than that of a SSZ-13 catalyst prepared by an ion exchange method and a Cu-SSZ-13 molecular sieve catalyst prepared by an one-step method, and the yield of the synthetic object is increased by 40%.

Abstract: The present invention discloses an isogeometric analysis method based on a geometric reconstruction model comprising steps of: dividing boundaries of a CAD model into triangular patches or directly based on point cloud data, generating a closed regular embedded domain, dividing the embedded domain into regular sub-domains, dividing the elements according to a positional relationship between the boundaries of the triangular patches/points and the elements into trimmed elements and untrimmed elements; calculating a minimum directional distance from each vertex of a trimmed element to a triangular patch near the trimmed element; using the minimum directional distance to divide the untrimmed elements into real and virtual elements; using the minimum directional distance as a level set function value, and using a marching tetrahedra algorithm to reconstruct a displayed geometric model based on the regular embedded domain; after obtaining the level set function value, calculating the level set function value of a G

Abstract: The present invention relates to the field of digital signal processing, and in particular to a Costas sequence time-frequency joint synchronization method based on all-phase spectrum correction. The method improves the defects existing in a discrete frequency spectrum correction algorithm using short-time Fourier transform and sliding correlation. The improvement mainly comprises: the present disclosure provides a solution based on iterative optimization: when an actual frequency offset is an integral multiple of the spectral resolution, a large error can occur, frequency offset correction and time delay correction are carried out on a signal by using an estimated value having a large estimated error, then estimation is carried out again, and the frequency offset of the signal is not a special value by means of an iteration mode.

Abstract: The present invention relates to the field of digital signal processing, and in particular to a Costas sequence time-frequency joint synchronization method based on all-phase spectrum correction. The method improves the defects existing in a discrete frequency spectrum correction algorithm using short-time Fourier transform and sliding correlation. The improvement mainly comprises: the present disclosure provides a solution based on iterative optimization: when an actual frequency offset is an integral multiple of the spectral resolution, a large error can occur, frequency offset correction and time delay correction are carried out on a signal by using an estimated value having a large estimated error, then estimation is carried out again, and the frequency offset of the signal is not a special value by means of an iteration mode.

Abstract: Embodiment of present invention provide a wavelength division multiplexing (WDM) module. The WDM module includes a substrate having a first side and a second side opposing the first side, wherein the first side includes a transpassing region coated with an anti-reflective (AR) film and a reflective region coated with a high-reflective (HR) film, and the second side includes multiple ports of optical paths; multiple WDM filters attached to the multiple ports at the second side of the substrate, wherein surfaces of the WDM filters attached to the substrate are coated with WDM films; and at least one reflector attached to the second side of the substrate in a space between the multiple WDM filters, wherein the reflector has a first surface attached to the substrate and a second surface, opposing the first surface, that has a convex shape and coated with a high-reflective (HR) coating.

Abstract: Embodiments of present invention provide a method for checking integrity of a device selection process. The method includes placing multiple devices in a device tray that has multiple cells arranged in a matrix of M-rows and N-columns; separating the multiple devices into a first group and a second group; causing a machine to memorize locations of at least the first group; removing the second group from the device tray; after the removing, causing the machine to capture an image of devices remaining in the device tray and identify locations of the remaining devices based upon the image; comparing locations so identified with locations of the first group of devices memorized by the machine; and taking a corrective action when a discrepancy is found between the locations identified and locations memorized. An apparatus for performing the above method is also provided.

Abstract: Embodiment of present invention provide a micro-optics module. The module includes a glass body of pentagon shape having five side surfaces including an upper side surface, a left side and a right side surface next to the upper side surface, a lower side surface next to the left side surface, and a 5th side surface next to and between the lower side surface and the right side surface. The glass body is adapted to, upon incident of a first optical signal at the left side surface, cause the first optical signal to propagate toward and exit the glass body at the right side surface and, upon incident of a second optical signal at the right side surface, cause the second optical signal to reflect back at the left side surface; reflect back at the 5th side surface; and finally exit the glass body at the upper side surface.

Abstract: Embodiment of present invention provide a wavelength division multiplexing (WDM) module. The WDM module includes a substrate having a first side and a second side opposing the first side, wherein the first side includes a transpassing region coated with an anti-reflective (AR) film and a reflective region coated with a high-reflective (HR) film, and the second side includes multiple ports of optical paths; multiple WDM filters attached to the multiple ports at the second side of the substrate, wherein surfaces of the WDM filters attached to the substrate are coated with WDM films; and at least one reflector attached to the second side of the substrate in a space between the multiple WDM filters, wherein the reflector has a first surface attached to the substrate and a second surface, opposing the first surface, that has a convex shape and coated with a high-reflective (HR) coating.

Abstract: Provided are a metasurface primary mirror, a metasurface secondary mirror, a method for manufacturing a metasurface primary mirror, a method for manufacturing a metasurface secondary mirror, and an optical system. The metasurface primary mirror, manufactured by using the method for manufacturing a metasurface primary mirror, includes a transparent substrate which includes a primary mirror metasurface pattern on the transparent substrate. The primary mirror metasurface is configured to satisfy a primary mirror phase distribution such that incident light reflected by a metasurface secondary mirror onto the metasurface primary mirror is reflected and focused.

Abstract: Embodiments of present invention provide a method for checking integrity of a device selection process. The method includes placing multiple devices in a device tray that has multiple cells arranged in a matrix of M-rows and N-columns; separating the multiple devices into a first group and a second group; causing a machine to memorize locations of at least the first group; removing the second group from the device tray; after the removing, causing the machine to capture an image of devices remaining in the device tray and identify locations of the remaining devices based upon the image; comparing locations so identified with locations of the first group of devices memorized by the machine; and taking a corrective action when a discrepancy is found between the locations identified and locations memorized. An apparatus for performing the above method is also provided.

Abstract: Embodiments of present invention provide a method for checking integrity of a device selection process. The method includes placing multiple devices in a device tray that has multiple cells arranged in a matrix of M-rows and N-columns; separating the multiple devices into a first group and a second group; causing a machine to memorize locations of at least the first group; removing the second group from the device tray; after the removing, causing the machine to capture an image of devices remaining in the device tray and identify locations of the remaining devices based upon the image; comparing locations so identified with locations of the first group of devices memorized by the machine; and taking a corrective action when a discrepancy is found between the locations identified and locations memorized. An apparatus for performing the above method is also provided.

Abstract: Embodiment of present invention provide a micro-optics module. The module includes a glass body of pentagon shape having five side surfaces including an upper side surface, a left side and a right side surface next to the upper side surface, a lower side surface next to the left side surface, and a 5th side surface next to and between the lower side surface and the right side surface. The glass body is adapted to, upon incident of a first optical signal at the left side surface, cause the first optical signal to propagate toward and exit the glass body at the right side surface and, upon incident of a second optical signal at the right side surface, cause the second optical signal to reflect back at the left side surface; reflect back at the 5th side surface; and finally exit the glass body at the upper side surface.

Abstract: The present invention provides a disk detection method and apparatus. The method includes: collecting a set of N pieces of real-time data that are in a one-to-one correspondence with N input/output I/O-related counters of a disk, where the N I/O-related counters include an I/O response time of the disk and a counter affecting the I/O response time; the I/O response time is a time between delivery of an operation request by an application and reception of a response of the disk to the request; determining, according to the N pieces of real-time data, whether the I/O response time is abnormal; and outputting a detection result if the I/O response time is abnormal, where the detection result is used to represent that the I/O response time is abnormal.

Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.

Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.

Abstract: Embodiments of present invention provide a method for checking integrity of a device selection process. The method includes placing multiple devices in a device tray that has multiple cells arranged in a matrix of M-rows and N-columns; separating the multiple devices into a first group and a second group; causing a machine to memorize locations of at least the first group; removing the second group from the device tray; after the removing, causing the machine to capture an image of devices remaining in the device tray and identify locations of the remaining devices based upon the image; comparing locations so identified with locations of the first group of devices memorized by the machine; and taking a corrective action when a discrepancy is found between the locations identified and locations memorized. An apparatus for performing the above method is also provided.

Abstract: The present invention provides a disk detection method and apparatus. The method includes: collecting a set of N pieces of real-time data that are in a one-to-one correspondence with N input/output I/O-related counters of a disk, where the N I/O-related counters include an I/O response time of the disk and a counter affecting the I/O response time; the I/O response time is a time between delivery of an operation request by an application and reception of a response of the disk to the request; determining, according to the N pieces of real-time data, whether the I/O response time is abnormal; and outputting a detection result if the I/O response time is abnormal, where the detection result is used to represent that the I/O response time is abnormal.

Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of pigtail fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of pigtail fibers attached to a second end of the optical signal path via a second WDM filter. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.