41results about How to "Eliminate demand" patented technology

The invention provides a circuit board test method and device based on a flying probe tester. According to the method, a test point set is determined by obtaining a design file of a circuit board, establishing an electrical connection model and identifying components and pins on the circuit board. And generating test combination set data by analyzing the conduction relationship between the test points, and further generating test scheme data. And based on the test scheme data, a test path is generated by using a path optimization algorithm, finally, the flying probe tester is used for testing, and a test report is generated according to a test result. The flying probe tester adopts the combination of an annular probe and a sharp needle probe, the annular probe is used for a pin connector to ensure accurate contact, and the sharp needle probe is used for other types of components to improve the test precision and adaptability. Compared with a traditional test method, the test scheme can be generated more efficiently, the test path can be optimized more efficiently, the test time is remarkably shortened, and the reliability and accuracy of circuit board testing are improved.

The invention relates to the field of aviation training, and discloses a virtual reality-based aviation training method, which comprises seven steps of training target and demand analysis, hardware and software setting, ground preparation, simulator training stage, training scene and task setting, flight data recording and evaluation and further training and development. According to the aviation training method based on virtual reality, a highly realistic virtual environment can be created, so that trainees can immerse in the virtual environment, and the trainees like being personally on the scene; thus, more real and controllable experience is provided, and students can feel the scene and situation of actual flight better; meanwhile, compared with actual flight training, virtual reality training has lower cost; the virtual reality training eliminates the demands of actual resources such as airplanes and fuels, and reduces the costs of maintenance, repair and insurance. The aviation training is more economical and efficient, and the training cost can be reduced.

The invention discloses a high-resolution remote sensing image compression method and system based on block modulation imaging, a binary mask matrix is generated, an acquisition end configures an optical mask device according to the binary mask matrix, and when a high-resolution remote sensing image is acquired, an optical lens is adopted to acquire an optical signal matrix; after optical mask processing is carried out through the optical mask device, modulation is carried out through the relay lens, then the optical mask device is converted into an electrical signal matrix through the photoelectric sensor, then the electrical signal matrix is partitioned and superposed so as to complete compression, and an obtained measurement value matrix is sent to a receiving end; the receiving end extracts a block mask matrix corresponding to each block from the binary mask matrix according to the block mode of the acquisition end, then extracts each block signal matrix from the measured value matrix to form a three-dimensional signal matrix, and inputs the three-dimensional signal matrix into a pre-constructed and trained decoding network; and decoding to obtain an optical signal matrix of the high-resolution remote sensing image. According to the invention, block modulation imaging is provided, and the decoding restoration quality is improved while the compression speed is improved.

The invention relates to a polypropylene composition as well as a preparation method and application thereof. The polypropylene composition comprises 39-66 parts of polypropylene resin, 2-6 parts of a compatilizer, 3-8 parts of a bamboo fiber filler, 5-13 parts of a glass fiber filler and 0-5 parts of a processing aid. The polypropylene composition is suitable for being co-extruded with nylon to prepare a pipe, and the interlayer binding force between the polypropylene composition and a nylon interface is effectively improved by utilizing the characteristic that hydroxyl groups of the bamboo fiber filler in the polypropylene composition and nylon form hydrogen bonds and matching of the glass fiber filler.

The present disclosure relates to a slurry supply device, a flotation unit, a flotation plant and a method. The slurry supply device (100) includes a plurality of downcomers to mix a flotation gas (230) with slurry from an input slurry stream (200) to form a slurry-flotation gas mixture, and to supply the slurry-flotation gas mixture (240) into a tank of a flotation unit. The plurality of downcomers are positioned in sectors (130) around a center (202), each of the sectors comprising two or more downcomers (110, 120) of the plurality of downcomers, the two or more downcomers being at different distances from the center.

The invention discloses a core-shell structure algae / bacteria symbiotic hydrogel and a preparation method thereof, the core-shell structure algae / bacteria symbiotic hydrogel (algae is a core and bacteria are a shell) is prepared by using a 3D printing technology, the algae and the bacteria are separated from each other in space, and a customized latticed structure can effectively disperse light, so that microalgae in a bracket can receive the light, and the algae / bacteria symbiotic hydrogel is prepared. The problem of low hydrogen production efficiency caused by serious mutual shielding among cells, low light energy utilization rate, nutrient substance competition and the like is solved, the system almost eliminates the requirement on a liquid medium, and growth of microalgae and bacteria in the hydrogel can be supported only by forming a layer of solid culture medium at the bottom of the printed hydrogel; water resources are saved; and the space utilization rate is improved.

The invention discloses an ultra-wideband weak signal detection method and system based on all-optical oscillation and phase-amplitude conversion. The method comprises the steps that spontaneous radiation light generated by an erbium-doped optical fiber amplifier is used as an optical carrier; modulating a weak radio frequency signal to be measured received by an antenna to the optical carrier through an optical modulator to form a modulated optical signal; the modulated optical signal is injected into an all-optical oscillation circuit composed of double loops, the all-optical oscillation circuit generates multimode optical oscillation by adjusting an optical attenuator, and the all-optical oscillation circuit comprises a double-loop interference structure; performing phase-amplitude conversion by adjusting the delay difference of the two light paths in the double loops to form an equivalent microwave photon filter so as to select and amplify the modulated light signal corresponding to the radio frequency signal of the set frequency band; and converting the selected and amplified modulated optical signal into an electric signal, and performing spectral analysis to detect the weak radio frequency signal to be detected.

Disclosed herein are systems and methods related to a processing system for moving a semiconductor substrate within a process chamber during processing. The processing system moves the substrate back and forth between two positions in an arcuate motion about a pivot point while rotating the substrate about its own center point.

A first aspect of the present disclosure relates to a device for observing and / or inspecting a material web, comprising a first camera unit for capturing first image data of the material web; a first computing unit, which is connected to the first camera unit via a first camera connection line, and which is designed to receive and optionally process the first image data; and a second computing unit designed to receive and optionally process the first image data from the first computing unit. The first computing unit and the second computing unit are connected via a first USB line. The first image data is transmitted to the second computing unit via the first USB line. The first computing unit includes a first USB interface and the second computing unit includes a second USB interface, where the first USB interface and the second USB interface are connected via a first USB line, where the first USB interface and the second USB interface are incorporated into a network. Another aspect of the disclosure relates to a device for treating a material web, comprising a material web and a device for observing and / or inspecting the material web.

A method for simulating, in particular computerizing, at least one physical property of a system of one or more chemical substances, said system comprising at least one chemical substance dissolved in at least one inhomogeneous distribution of chemical substances, using quasi-chemical calculations based on statistical thermodynamics of pairwise interactions of molecular surface fragments. According to the invention, the pressure caused by the statistical thermodynamic population excess or population deficiency of a spatial region interacts with the atomic volume as an additional continuum response function, thereby affecting the thermodynamic weights of the molecular states in the system during iterative calculations of the statistical thermodynamic distribution of molecules in a 1-, 2- or 3-dimensional structured simulation volume of the liquid system.

The invention relates to a single-chip camera for multispectral imaging and a use method thereof. Methods and systems are provided for implementing multiple imaging modes through a single camera. The camera may include a single chip system capable of measuring light of different wavelengths on different regions of the same image sensor to generate different images. A light source in the system may adjust the output spectrum by using multiple luminophors and filters, and may generate white light images, fluorescence images, perfusion images, fluorescein images, etc., using measurements from different light channels of different regions of the image sensor.

The invention relates to a cartridge with distributed electronics, and particularly provides a stopper configured to be disposed within a medical cartridge, the stopper comprising: a housing defining a cavity; a core arranged within the cavity; and at least one electronic device embedded within the core, where the at least one electronic device comprises a sensor, and where the housing is configured to pass a sensing signal therethrough.

This application provides an agile development method, apparatus, equipment, and medium for vehicle air conditioning control software, effectively addressing several shortcomings of existing vehicle air conditioning software development models. The method includes: constructing a visual model of multiple components of the vehicle air conditioning system in a modeling module according to requirements, and configuring the corresponding visual model by dragging and dropping core air conditioning components and connecting them; a central data dictionary responding to requests from an intelligent code generation engine, providing standardized data entities, enabling the intelligent code generation engine to map the standardized data entities to the visual model through a three-layer mapping architecture to obtain target code; the three-layer mapping architecture includes a semantic-data mapping layer, a platform adaptation layer, and a security and compliance layer; verifying the target code based on a three-layer verification structure to obtain verification results, and then implementing agile development of the vehicle air conditioning control software based on the verified target code.

The invention relates to a detection device and a detection method for a complex micro-nano structure. The device comprises a laser, a beam expanding and collimating system, a polaroid, a beam splitter prism and an image sensor, and can generate and shape light beams, the light beams are polarized to form measurement light, the measurement light is converged through a reflection or transmission light path, and finally a digital holographic interferogram is recorded by the image sensor. According to the method, reflection type measurement and transmission type measurement are combined, after a holographic interference pattern is obtained, object light wave complex amplitude distribution is obtained through the steps of image preprocessing, Fourier transform and the like, and then the three-dimensional shape of the micro-nano structure is analyzed. The problems that in the prior art, incident light is difficult to touch the bottom of a complex micro-nano structure, three-dimensional shape information is lost, the detection efficiency is low, the application range is limited, positioning is difficult and the like are effectively solved, an efficient and comprehensive micro-nano structure detection means is provided, the detection requirements of various functional materials are met, and the detection efficiency is improved. The method has remarkable technical advantages and wide application prospects.

The utility model discloses a slewing support bearing which comprises a bearing outer ring and a bearing inner ring, the bearing inner ring is arranged on the inner side of the bearing outer ring, a plurality of connectors are connected to the two sides of the bearing outer ring respectively, locking grooves are formed in the connectors, annular outer plates are arranged on the two sides of the bearing outer ring respectively, and a cavity is formed in one side of each annular outer plate. Locking mechanisms in one-to-one correspondence with the connectors in number and position are arranged in the cavity, each locking mechanism comprises a fixing rod and a lock head, the fixing rods are connected with the inner wall of one side of the cavity, the fixing rods are sleeved with the lock heads in a sliding mode, the lock heads are clamped with the corresponding lock grooves, springs used for driving the lock heads to pop out are arranged on the fixing rods, and one sides of the lock heads are connected with pull rods; a fixed pulley is rotationally connected to the inner wall of one side of the cavity, a flexible steel rope is connected to one side of the pull rod, and the end of the flexible steel rope bypasses the corresponding fixed pulley and penetrates through the annular outer plate to be connected with the pull ring. According to the novel locking mechanism, the annular outer plate and the bearing outer ring can be quickly disassembled and assembled.

The utility model relates to a closed circulating water replenishing device for a compressor. The closed circulating water replenishing device comprises the compressor, a heat exchanger, a pump set and a water replenishing pipe set. The heat exchanger inlet is connected with the compressor outlet which is provided with a first pressure sensor. The pump set is provided with a first water pump and a second water pump which are arranged between an inlet of the compressor and an outlet of the heat exchanger in parallel, a first electric valve is arranged at an inlet of the first water pump, and a second electric valve is arranged at an inlet of the second water pump. The water supplementing pipe set comprises a main water supplementing pipe, a standby water supplementing pipe and a pressurizing water supplementing pipe. An inlet of the main water supplementing pipe is connected with the on-site water supply pipeline, an outlet of the main water supplementing pipe is connected between the first pressure sensor and the pump set inlet, a third electric valve is arranged on the main water supplementing pipe, and a second pressure sensor is arranged at an outlet of the on-site water supply pipeline. A standby water supplementing pipe inlet is connected with the on-site water supply pipeline, a standby water supplementing pipe outlet is connected between the third electric valve and the main water supplementing pipe outlet, and a fourth electric valve is arranged on the standby water supplementing pipe.

The application relates to the technical field of parallel operation energy storage systems, and discloses a current transformer connection detection method, device and system and a storage medium. The selected phase of the parallel operation energy storage system is controlled to separately output power and perform dynamic change regulation, the correlation of power change amounts is analyzed according to the inversion power change amount of each energy storage inversion unit, the power grid power change amount and a detection model constructed, and the connection state of the CT is determined phase by phase. Compared with traditional manual detection or fixed threshold judgment, the method has high automation degree, can accurately identify the forward connection, reverse connection, wrong connection and missing connection of the CT in real time, abnormality can be found in time, and system failure or performance decline caused by connection errors can be avoided. The intelligent detection technology is adopted, the need for traditional auxiliary equipment is eliminated, and the detection efficiency and system reliability are improved.

This invention discloses a submarine cable acoustic monitoring system based on scattering-type fiber optic fingerprint technology, belonging to the field of fiber optic sensing technology. The system includes a light source module, a transmitting module, a submarine cable fiber optic sensing unit, a dual-balanced detector module, and a signal processing module. In the light source module, the continuous light output from the laser is split into a probe light and a local reference light by a dynamic beam splitter. The probe light is modulated and injected into the submarine cable fiber, and the resulting backscattered Rayleigh light carries acoustic information back. The dual-balanced detector module has a built-in light intensity monitoring unit that monitors the light intensity of the reference light and the scattered light in real time. By comparing the two intensities, it sends a feedback control signal to the dynamic beam splitter, dynamically adjusting the splitting ratio to maximize the interference term intensity coefficient, thereby improving the signal amplitude and sensing sensitivity. This invention solves the problems of limited sensing distance and high laser linewidth requirements in traditional systems, and is suitable for long-distance, high-reliability submarine cable acoustic event monitoring and location in deep-sea environments.

The application discloses a vehicle positioning estimation method, which comprises the following steps: obtaining an initial pose satisfying a switching condition based on a particle filter algorithm; fusing the initial pose of the vehicle satisfying the switching condition, laser point cloud data and wheel odometer data based on an unscented Kalman filter algorithm to estimate the pose of the vehicle and obtain vehicle pose estimation data; calculating the variance of the current pose state estimation to determine whether the current pose is reliable; if the current pose is reliable, updating the current pose as the current pose estimation data and estimating the pose state of the next state of the vehicle based on the unscented Kalman filter; and if the current pose is not reliable, estimating the pose state of the next state of the vehicle based on the particle filter algorithm. The application further discloses a corresponding system, a storage medium and a vehicle. When the positioning estimation is performed, the application can break the dependence on the third source input of the initial pose of the vehicle, and improve the positioning accuracy and stability of the vehicle in a complex nonlinear scene.

A water treatment method based on coagulation-coupled spontaneous flotation process, the steps are as follows: adding a cross-linking agent to the water body to be treated with a dissolved oxygen content of more than 4 mg / L, stirring at a speed of 100-200 rpm for 30-120 seconds for uniform mixing, then adding a coagulant, stirring at a speed of 400-600 rpm for 15-60 seconds for uniform mixing, and finally standing for 10-20 minutes to complete flotation. The water treatment process based on coagulation-coupled spontaneous flotation of the present invention effectively utilizes the dissolved gas in the water, and by controlling the addition ratio, addition method and hydraulic conditions of the cross-linking agent and the coagulant, a cloud-like gel floccules is obtained, which can effectively encapsulate the dissolved gas oxygen and realize spontaneous, stable and efficient flotation. Compared with traditional processes, the water treatment method based on coagulation-coupled spontaneous flotation process of the present invention shortens the operation time, does not require additional gas dissolving devices and pressure equipment, effectively reduces the infrastructure and operation costs of the wastewater treatment plant, and reduces carbon emissions.

The present invention discloses a vertical submerged liquid metal magnetic pump, comprising a motor, a pump cover, an upper pump body, a lower pump body and a guide ring arranged in sequence from top to bottom, the lower end of the motor is connected with a pump shaft, the lower end of the pump shaft extends into the guide ring, an impeller connected to the pump shaft is arranged in the guide ring, a cooling circuit is arranged in the pump cover, an upper bearing assembly corresponding to the pump shaft is arranged between the upper pump body and the lower pump body, a lower bearing assembly corresponding to the pump shaft is arranged in the guide ring, the upper bearing assembly includes a combined bearing structure formed by a guide bearing structure and a thrust bearing structure, an installation cavity corresponding to the combined bearing structure is arranged between the upper pump body and the lower pump body, and a liquid supply tank corresponding to the thrust bearing structure is arranged in the installation cavity. The advantage of the present invention is that the need for configuring an auxiliary lubrication system is eliminated, system damage and cost are reduced, and it can be better applied to small system installation occasions with small radial dimensions and compact structure requirements.

The invention provides a molybdenum-based catalyst and a preparation method and application thereof. The molybdenum-based catalyst comprises a molybdenum-based carrier and at least two metals loaded on the molybdenum-based carrier, and the molybdenum-based carrier is selected from at least one of alpha-MoC, beta-Mo2C, MoN, MoS2 and MoP; the metals are selected from at least two of ruthenium, rhodium, palladium, iridium, platinum and gold. The molybdenum-based catalyst provided by the invention is applied to hydrogen production by selective reforming of ethanol, and has relatively high hydrogen production efficiency and acetic acid selectivity.

The utility model discloses a flat ground moving device of a cushion pier, which consists of a first cross beam, a second cross beam and a third cross beam, the first cross beam, the second cross beam and the third cross beam are positioned on the same horizontal plane, and the second cross beam is vertically connected to one end of the first cross beam. A third cross beam is slidably arranged at the end, away from the second cross beam, of the first cross beam, scissor jacks are arranged on the second cross beam and the third cross beam correspondingly, the scissor jacks are adjusted so that the scissor jacks can make contact with the lower surface of an upper flange plate of the cushion pier, and supporting rods are arranged on the scissor jacks and clamped in limiting grooves of the second cross beam and the third cross beam; the scissor jack is supported; and the scissor jack jacks the cushion pier, so that a lower flange plate of the cushion pier abuts against the limiting steel of the second cross beam and the limiting steel of the third cross beam, and the cushion pier is fixed. According to the flat ground moving device of the cushion pier, the stability of the cushion pier in the transportation process is guaranteed, and dependence on a crane or a forklift can be avoided or reduced when the cushion pier is moved.

The invention relates to a rescue work device for deployment during flood and other rescue works, comprising: a first inflatable tube layer having at least three linear first sides, each first side being connected to a first corner such that the first inflatable tube layer has at least three first corners, each first corner being connected to a second side of the first inflatable tube layer; each first corner part is provided with the same first included angle between two adjacent first side parts; a second inflatable tube layer substantially identical to the first inflatable tube layer and having at least three linear second sides, each second side being connected to a second corner portion such that the second inflatable tube layer has at least three second corner portions, each second corner portion has a same second included angle between two adjacent second side portions, and wherein the first inflatable tube layer is disposed over and rotated relative to the second inflatable tube layer such that each first corner portion projects radially outward from each of the second side portions by a first projection distance, and the second corner portion has a second included angle between two adjacent second side portions, and wherein the first inflatable tube layer is disposed over and rotated relative to the second inflatable tube layer such that each first corner portion projects radially outward from each of the second side portions by a second projection distance. And each second corner portion protrudes radially outward from each of the first side portions by a second protrusion distance, the first protrusion distance being substantially equal to the second protrusion distance, and the first inflatable tube layer and the second inflatable tube layer are connected via a floor member having a first floor surface and a second floor surface.

The utility model discloses a push rod rigidity detection mechanism, which belongs to the technical field of push rod testing, solves the problem of inconvenience in testing in the prior art, and adopts the technical scheme that the push rod rigidity detection mechanism comprises a linear driving mechanism and a grating ruler for detecting the displacement of a detected push rod, the tested push rod is provided with a first positioning hole located in an outer pipe of the tested push rod and a second positioning hole located in an inner pipe of the tested push rod, the testing platform is further provided with a first positioning piece and a second positioning piece, and the first positioning piece is used for being inserted into the first positioning hole to lock the outer pipe of the tested push rod on the testing platform. The second positioning piece is used for being inserted into the second positioning hole to lock the inner tube of the tested push rod on the test platform, and the second positioning piece is movably arranged on the test platform and can be driven by the linear driving mechanism to move on the test platform, so that the second positioning piece is aligned with the second positioning hole; and the output end of the linear driving mechanism is connected with the inner pipe through a second positioning piece. According to the utility model, the test is more convenient.

The invention discloses a single-motor-driven wheel arm composite structure and a control method thereof.The single-motor-driven wheel arm composite structure comprises a fixed arm, the fixed arm comprises an outer connecting wing plate and an inner connecting wing plate, a rotating arm is rotationally arranged between the outer connecting wing plate and the inner connecting wing plate through a speed reduction assembly, and a hollow motor is arranged on the inner connecting wing plate and comprises a stator and a rotor; a wheel rim is arranged on the rotor and sleeved with a tire, a brake disc is arranged on the side, close to the inner connecting wing plate, of the wheel rim in a supported mode and located between the wheel rim and the speed reduction assembly, a brake caliper matched with the brake disc is arranged on the inner connecting wing plate, the hollow motor is hollow, a clutch is installed in the hollow motor, one end of the clutch is connected with the speed reduction assembly, and the other end of the clutch is connected with the speed reduction assembly. The other end of the clutch and the rim rotate at the same angular speed, and connection and disconnection of force of the speed reduction assembly driving the rotating arm to rotate are controlled through the clutch. The single motor drives the wheel and the rotating arm at the same time, the integration degree of the wheel arm structure is improved, and the number of motors and occupied space are reduced.

The invention provides an accompanying test boat navigation guiding method in a water surface dynamic target detection test and a storage medium, and the method comprises the steps: drawing a route and path points on a display interface according to a route and path points which are preset before the test; updating the position of the ship in a display interface in real time according to the real-time positioning data of the ship; the system monitors interaction of the ship with a preset waypoint, including entry and exit of the ship from the waypoint; dynamic visual feedback is provided for a driver by dynamically changing the visual styles of the path points and the speed floating window. According to the method, traditional physical guide lines and speed identifiers are effectively replaced, the requirement for frequently laying and maintaining physical identifiers is eliminated, and the problems of high cost and low flexibility in a traditional method are fundamentally solved.

This utility model discloses a handle powder coating hanger, including a supporting base plate. A main rod is fixedly connected to the top of the supporting base plate. A rectangular vertical groove is formed on the outer wall of the main rod, and a lifting rod is slidably connected to the inner wall of the rectangular vertical groove. An adjustment component is provided on the outer wall of the lifting rod, and multiple circular sleeves are fixedly connected to the outer wall of the lifting rod. Two first hooks are fixedly connected to the outer wall of each of the multiple circular sleeves, and two second hooks are fixedly connected to the outer wall of the main rod. This utility model adjusts the height of the lifting rod by tightening bolts, thereby driving the multiple first hooks to rise and fall, realizing stepless adjustment of the distance between the first and second hooks. It is compatible with aluminum alloy handles with different mounting hole diameters, eliminating the need for dedicated hangers, saving the traditional replacement process, reducing production line downtime, and ensuring production continuity. Furthermore, it can realize the rotation of the hanger relative to the suspension position to meet the orientation and positioning requirements of processes such as powder coating.

The invention discloses a high-power laser rapid focusing device, and relates to the technical field of laser processing. In order to solve the problems that an existing focusing device is slow in speed, and an optical lens is easily polluted by external pollutants and thermal volatile matters in a motor, the following technical scheme is provided: the focusing device comprises a voice coil motor, a labyrinth seal optical mechanism and a flexible disc mechanism. A coil is wound on a bobbin in the voice coil motor and surrounded by a magnetic field, the coil is stressed to move after being powered on, the cat eye lens is driven to move under the guiding effect of the flexible disc structure, and meanwhile the grating ruler and the reading head provide position feedback to achieve the focusing function. The cat eye lens and the convex lens are sealed in the labyrinth sealing mechanism and are relatively isolated from the outside and a coil in the motor, so that pollution of external pollutants and thermal volatile matters of the motor coil to the lens is avoided, and high performance, low cost and high reliability of the high-power laser rapid focusing device are realized. And an effective solution is provided for the field of high-power laser processing.

The utility model provides an advanced multi-thread embroidery machine which comprises a transmission operated by a handle, and the transmission allows a group of second gears mounted on a main driving shaft to be meshed with each other; the transmission is provided with a handle shell provided with a through hole, the handle can be locked at a selected speed through a first spring and a ball body, and the handle comprises at least one vertical line shaft column set. A movable arm of the first gear is provided with a smoothing rod; the pressure applied to the spool can be adjusted; the vertical line shaft column set can ascend and descend along with the movable arm and can rotate around the axis of the vertical line shaft column set along with the movable arm, so that a thread shaft is allowed to be replaced or removed, a plurality of embroidery threads can be processed at the same time, complex patterns with automatic color and luster gradually changing are generated, and work cannot be interrupted even under the condition that the embroidery threads are broken. The embroidery machine provided by the utility model has higher productivity and use elasticity, and reduces the maintenance cost.