6 results about "Close coupling" patented technology

The application discloses a kind of multilevel multi-physical coupling method and system for multiple program coupling, it is related to the field of multi-physical field coupling simulation calculation.Its system includes five hierarchical structures of coupling model module encapsulation layer, coupling problem manager encapsulation layer, coupling problem data interaction layer, coupling multilevel scene implementation layer and coupling infrastructure layer.The application can effectively solve the problems such as rigid coupling framework of existing multiple program coupling coupling technical scheme, difficult to unify coupling paradigm, lack of efficient multi-physical field coupling management, coupling decision and close coupling pedigree, poor adaptability of complex coupling scene, etc.by modularizing existing multiple program, systematizing coupling problem, standardizing coupling data interaction and hierarchical coupling management.

The invention provides a broadband wide-axial-ratio circularly polarized antenna based on a tight coupling principle, and relates to the technical field of microstrip antenna structure design, the broadband wide-axial-ratio circularly polarized antenna comprises a first dielectric plate as a substrate, and a feed network capable of realizing one-to-four power division and 90-degree phase shift is printed on the lower bottom surface of the first dielectric plate; a second dielectric plate is arranged above the first dielectric plate in parallel, four arc-shaped metal patches are arranged on the lower bottom surface of the second dielectric plate to form a radiation unit, and the adjacent patches are tightly coupled through an interdigital capacitor; and a strip-shaped microstrip line is arranged on the upper top surface of the second dielectric plate. And the four coaxial feeder lines are vertically connected with the output end of the feed network and each metal patch, so that high-efficiency transmission of signals is realized. The upper surface of the first dielectric plate is provided with an annular metal cavity which is connected with the metal ground and is used for improving the axial ratio at a low elevation angle. According to the invention, wide impedance bandwidth and wide axial ratio bandwidth are realized, and the antenna has wide axial ratio beam width and high radiation efficiency.

The invention discloses a multi-level multi-physical coupling method and system for multi-program coupling, and relates to the field of multi-physical field coupling simulation calculation. The system comprises five hierarchical structures including a coupling model module packaging layer, a coupling problem manager packaging layer, a coupling problem data interaction layer, a coupling multi-level scene implementation layer and a coupling infrastructure layer. According to the invention, through modularization of existing multiple programs, systematization of coupling problems, standardization of coupling data interaction and hierarchy of coupling management, the problems that a coupling framework of an existing coupling technical scheme for coupling multiple programs is rigid, coupling normal forms are difficult to unify, efficient multi-physics field coupling management, coupling decision and tight coupling pedigree are lacked, and the coupling efficiency is low can be effectively solved. And the adaptability of complex coupling scenes is poor.

The invention belongs to the technical field of navigation and positioning, and particularly relates to a high-precision positioning and orientation system based on multi-source information fusion. The invention designs a set of positioning and orientation system based on fusion of a tightly coupled GNSS, a visual inertial odometer and a magnetometer. For short-term or long-term magnetic interference, respective correction models of the magnetometer under the short-term or long-term magnetic interference condition are designed, the course is calculated, an adaptive model is designed, and the change of the magnetic field intensity is monitored in real time, so that the magnetic interference can be automatically detected and classified into short-term and long-term interference. The short-term anti-interference model provided by the invention can accurately predict the measurement data of the magnetometer within a certain time, solves the problem that the traditional method has poor ability to deal with sudden magnetic interference, and combines a long-term recalibration method with the global attitude of the system.

The invention relates to the technical field of antennas, in particular to a conical beam antenna based on a tight coupling theory. The antenna comprises a radiation plate, a power dividing plate, a feeder plate and a short circuit column, the radiation plate and the power dividing plate are arranged in parallel at intervals, multiple groups of parallel patches and multiple groups of dipole arms are arranged on the front face and the back face of the radiation plate, the multiple groups of dipole arms are radially distributed outwards from the center of the radiation plate, and the parallel patches and the dipole arms arranged on different faces are overlapped. The radiation plate is provided with a first feed line position in the middle of each group of dipole arms, the power dividing plate is provided with a second feed line position, the plurality of feed line plates are vertically connected between the radiation plate and the power dividing plate, two ends of each feed line plate are respectively connected with the first feed line position and the second feed line position, and the short circuit column is connected with the radiation plate and the power dividing plate. The center of the power dividing plate is provided with a coaxial feed port, and the radiation plate, the power dividing plate, the feed line plate and the short circuit column are arranged in an integral symmetrical structure. According to the antenna, the bandwidth is expanded to more than three times of frequency, and better out-of-roundness can still be obtained on the premise of not using a balun.

The utility model provides an adjustable wire binding device and an air conditioner applying the same, the adjustable wire binding device comprises a pair of binding belt seats, the binding belt seats are provided with binding belts, wire belt through holes matched with the binding belts, and a plurality of clamping grooves; and the adjusting assembly is connected between the corresponding clamping grooves of the pair of ribbon seats and used for adjusting the distance between the pair of ribbon seats. The distance between the pair of cable tie seats is adjusted through the adjusting assembly, the relative positions of the corresponding cable ties of the pair of cable tie seats and the cable tie through holes are changed, the distance between the two sets of lines or pipelines bound by the cable ties corresponding to the pair of cable tie seats and the cable tie through holes in a matched mode is adjusted, and signal interference caused by coupling of the two sets of lines due to the too close distance is avoided; and normal work of the air conditioner or other units is influenced. And meanwhile, the wiring layout of a pair of cable tie seats in various angles and directions can be realized, and each group of lines can pass through the cable tie in parallel, so that the problems of angle bending between the lines and large wiring space occupation caused by the fact that a plurality of lines are bound by the same cable tie are avoided.