10results about How to "Strong achievability" patented technology

The invention relates to the technical field of hydrogen production systems, and particularly discloses a PEM hydrogen production energy-saving system and a control method thereof.The system comprises a comprehensive safety water tank, a water adding pump, an oxygen separator, a pure water circulating pump, an ion filter, a PEM tank, a hydrogen separator, a buffer tank and a hydrogen production power source; a water supplementing opening is formed in the comprehensive safety water tank, the inner bottom side of the comprehensive safety water tank is connected with the inlet end of a water adding pump through a pipeline, and the outlet end of the water adding pump is connected with the first inlet end of an oxygen separator; the outlet end of the oxygen separator is connected with the inlet end of the ion filter through the pure water circulating pump, the outlet end of the ion filter is connected with the inlet end of the PEM groove, the outlet end of the PEM groove is connected with the inlet end of the hydrogen separator and the second inlet end of the oxygen separator, and the outlet end of the hydrogen separator is connected with the inlet end of the comprehensive safety water tank through the buffer tank. And the hydrogen production power supply is connected with the PEM groove. According to the invention, water on the hydrogen side can be recycled under a safe condition, so that the purpose of saving energy is achieved.

The application relates to a linear sweep frequency laser generating device, which comprises a semiconductor laser, a driving circuit, a laser beam splitter, a laser frequency discriminator unit, a radio frequency signal generating unit and a laser frequency shift unit; the semiconductor laser is controlled by the driving circuit to generate sweep frequency laser, and is divided into two beams by the laser beam splitter and enters the laser frequency discriminator unit and the laser frequency shift unit respectively; the laser frequency discriminator unit extracts a nonlinear sweep frequency component of the sweep frequency laser and generates a control signal to control the radio frequency signal generating unit; the radio frequency signal generating unit generates a radio frequency signal with a frequency opposite to that of the nonlinear sweep frequency component according to the control signal to drive the laser frequency shift unit; the laser frequency shift unit modulates the frequency of the radio frequency signal on the input light frequency to offset the nonlinear sweep frequency component of the sweep frequency laser and output linear sweep frequency laser. Compared with the prior art, the application has the advantages of high sweep frequency rate, large sweep frequency range and linear sweep frequency laser.

This invention discloses an IoT-based electronic hardware system for agricultural environmental monitoring, aiming to solve problems such as low monitoring accuracy, weak anti-interference capability, and poor adaptability in different agricultural scenarios. The system adopts a core architecture of multispectral coupled sensing, layered anti-interference packaging, dual-mode communication, and neural network self-calibration, making it adaptable to various scenarios such as desert oases, tea gardens, and northern arid lands. By optimizing the sensing unit, strengthening the protective structure, and implementing adaptive power supply and real-time calibration algorithms, it achieves accurate monitoring of multiple dimensions, including temperature and humidity, soil / water quality parameters, and crop status. Its simple structure, convenient installation, strong resistance to interference from wind, sand, freeze-thaw cycles, and high humidity, and stable data transmission provide reliable data support for precise agricultural production management, adapting to various agricultural environmental monitoring needs.

The invention discloses a rocket-borne large-spacing ultra-wideband conformal phased-array antenna, and belongs to the technical field of phased-array antennas. The antenna comprises a rocket body conformal metal carrier, a metasurface layer, an antenna layer, a parasitic layer, a metal floor and a fixing structure, wherein the antenna layer is formed by periodically arranging dual-polarization orthogonal active antenna units, vertical polarization units are linearly arranged along the axial direction, and horizontal polarization units are conformally bent along the cylindrical surface side of a rocket body; the parasitic layer is composed of passive parasitic units which are correspondingly arranged, the passive parasitic units and the active antenna units are alternately arranged in an orthogonal grid mode, and reverse current is excited by arranging a short-circuit strip so that H-face harmful common-mode resonance can be restrained. The antenna provided by the invention realizes nine frequency doubling bandwidths in a horizontal line polarization direction and a vertical line polarization direction, and realizes + / -60-degree grating lobe-free wide-angle scanning of an azimuth plane when an array spacing is 0.7-0.9 lambda H by adopting a rocket body conformal mode.

This invention discloses an environmentally friendly, high-efficiency permeability-reducing composite material for sand and its applications. The environmentally friendly, high-efficiency permeability-reducing composite material comprises xanthan gum, nano-silica, and pectinase, used to improve the strength and reduce the permeability of sand. The invention first mixes sand and soil in equal proportions to obtain clayey sand, then incorporates the environmentally friendly, high-efficiency permeability-reducing composite material to obtain remolded sand. Permeability tests, triaxial shear tests, and microscopic tests on the remolded sand show that after incorporating the environmentally friendly, high-efficiency permeability-reducing composite material, gel material is uniformly distributed on the surface and within the pores of the remolded sand, forming a non-penetrating pore structure within it, reducing the permeability of the remolded sand. Furthermore, long-term curing can improve the strength and ductility of the remolded sand. The environmentally friendly, high-efficiency permeability-reducing composite material provided by this invention is environmentally friendly, efficient, low-cost, and applicable to multiple scenarios, with broad application prospects.

The utility model aims to provide a gas injection valve static flow test tool, which comprises a shell, a gas inlet and a gas outlet, and is characterized in that a cavity with one open end is formed in the shell, and the shell is provided with a gas inlet and a gas outlet which are communicated with the cavity; a to-be-tested valve seat, a to-be-tested valve plate, a gasket and a range limiting disc are sequentially arranged in a cavity of the shell from inside to outside; the gland is arranged at the open end of the shell and is used for pressing the range limiting disc, so that a part of the lower end surface of the range limiting disc is pressed with a part of the upper end surface of the valve seat to be tested; different lifts of the gas injection valve are simulated by adjusting the thickness of the gasket. The static flow measuring device can be used for measuring the static flow corresponding to each lift of the gas injection valve under a series of pressure differences.

This invention discloses a rocket-borne, large-spacing, ultra-wideband conformal phased array antenna, belonging to the field of phased array antenna technology. The antenna includes a conformal metallic carrier for the rocket body, a metasurface layer, an antenna layer, a parasitic layer, a metal ground plane, and a fixing structure. The antenna layer consists of periodically arranged dual-polarized orthogonal active antenna elements, with vertically polarized elements arranged linearly along the axial direction and horizontally polarized elements conformally bent along the cylindrical side of the rocket body. The parasitic layer consists of correspondingly arranged passive parasitic elements, arranged in an orthogonal grid alternating with the active antenna elements. Reverse current is excited by setting short-circuit strips to suppress harmful common-mode resonance in the H-plane. This invention's antenna achieves nine harmonic bandwidths in both the horizontal and vertical polarization directions, and uses a conformal approach with the rocket body to achieve an array spacing of 0.7~0.9λ. H Wide-angle scanning with no raster lobe at ±60° azimuth plane.

The application discloses a wide-area low-altitude non-cooperative target real-time discrimination method based on self-supervised incremental learning, and belongs to the technical field of radar target recognition and air traffic surveillance. Firstly, the radar track cluster of the ground-to-air radar and the cooperative target track cluster of ADS-B are acquired, and the neighborhood context spatio-temporal consistency dynamic time warping method is used for hetero-frequency track similarity measurement and cross-threshold nearest neighbor matching. The matching result is used as self-supervised information to construct a discrimination network based on the Transformer Encoder, the robustness is enhanced through random ordering of the track cluster, and the model is evolved autonomously through incremental learning. Finally, combined with GPU parallel computing, end-to-end fast reasoning with a time complexity of O (N) is realized, and the cooperative / non-cooperative attributes of each radar target are output. The application does not need manual labeling, can accurately match hetero-frequency tracks, significantly improves the real-time performance, accuracy and dynamic adaptability of non-cooperative target discrimination, and can be widely deployed in low-altitude traffic control systems.

This invention discloses a multimodal state perception and intelligent diagnosis system for power equipment, belonging to the field of intelligent operation and maintenance technology for power equipment. The multimodal perception unit collects visible light imaging information, infrared thermal imaging information, ultraviolet imaging information, and acoustic imaging information from the power equipment; the data preprocessing unit performs time synchronization, spatial alignment, and data normalization on the multimodal perception data; the equipment identification unit identifies the type and key structures of the power equipment based on visible light imaging information; the multimodal fusion diagnosis unit selects appropriate multimodal fusion and diagnosis strategies according to equipment type information, performs joint analysis on the multimodal perception data, and outputs equipment state assessment results and / or fault diagnosis results; the result output unit displays, stores, or transmits the diagnostic results. This invention can improve the accuracy and reliability of power equipment state perception and has good engineering application value.

The invention relates to a quantum state encoder, in particular to a high-precision quantum state encoder based on a nested interferometer, which is characterized in that an unbalanced Mach-Zehnder interferometer is positioned on an anticlockwise path of a Sagnac interferometer and consists of a second beam splitter BS2 and a third beam splitter BS3, and two arms of the interferometer have unbalanced optical paths and are used for introducing fixed time delay; dividing a single light pulse into a morning time bin and a evening time bin in a time domain; the at least one phase modulator is located in the Sagnac interferometer, under the driving of the integrated control system, independent phase modulation is carried out on the passing light pulses, a target quantum state is directly synthesized by designing modulation phase combinations, and meanwhile a decoy state is formed; the integrated control system is used for generating a voltage pulse with a corresponding time sequence and amplitude according to a target quantum state to be generated and a decoy level in each pulse period, and directly driving the phase modulator; according to the method, the defects of discrete structure, high quantum bit error rate and poor expandability can be overcome.