70results about How to "Guaranteed design" patented technology

A forward dynamic and inverse dynamic response analysis and control method of a parallel robot comprises the steps of (1) disassembling the parallel robot, namely selecting a generalized coordinate system or a user-defined coordinate system to consider each branch chain and each movable platform of the parallel robot as s subsystems which are mutually independent; (2) determining a dynamical equation of subsystems of each branch chain; (3) determining a dynamical equation of subsystems of each movable platform; (4) determining a constraint equation; (5) obtaining a forward dynamic equation through analysis; (6) obtaining an inverse dynamic equation through analysis; and (7) determining control force of a controller. The forward dynamic and inverse dynamic response analysis and control method of the parallel robot has good model sharing performance, and a dynamic unite analytical method is provided for complicatedly restrained parallel robot systems.

A multi-axis integrated MEMS inertial sensor device. The device can include an integrated 3-axis gyroscope and 3-axis accelerometer on a single chip, creating a 6-axis inertial sensor device. The structure is spatially with efficient use of the design area of the chip by adding the accelerometer device to the center of the gyroscope device. The design architecture can be a rectangular or square shape in geometry, which makes use of the whole chip area and maximizes the sensor size in a defined area. The MEMS is centered in the package, which is beneficial to the sensor's temperature performance. Furthermore, the electrical bonding pads of the integrated multi-axis inertial sensor device can be configured in the four corners of the rectangular chip layout. This configuration guarantees design symmetry and efficient use of the chip area.

A centrifugal pendulum for a drivetrain of a motor vehicle, which is mountable rotatably around an axis of rotation, having a pendulum mass, a first sliding block guide and a pendulum flange, where the pendulum mass includes a first pendulum mass part, where the first pendulum mass part is coupled with the pendulum flange via the first sliding block guide, where the first sliding block guide is designed to guide the first pendulum mass part along an oscillation path in an oscillating motion, where the pendulum mass has an additional pendulum mass part and a coupling, where the additional pendulum mass part is coupled with the first pendulum mass part by the coupling so that it is movable at least in the radial direction relative to the pendulum mass part.

The invention requests for a system and a method for predicting fire fume characteristics to protect buildings and relates to predicting of fire fume development and evolution laws in high-rise buildings and multi-layer and multi-room buildings. The invention constitutes a complete building fire fume characteristic predicting system and a fire fume characteristic predicting method. A building is transformed into a building ventilation tree composed of nodes and branches so as to construct a junction matrix and a closed-loop matrix for ventilation circuits of the building; a fume characteristic equation is composed and solved to plot the relationship of time and concentration changes of CO2 and CO, then the time to reach the dangerous concentration is predicted. The system can predict the structure changes of the building during the development of the fire so as to make out forced ventilation proposals and smoke control and exhaust proposals for each part in the building and realize performance-based design of smoke prevention and exhaust systems and safety evacuation of the building with the maintenance of the fire safety.

The invention provides a terminal device and a touch screen. The terminal device comprises a terminal body and a display screen, wherein the display screen is arranged on the terminal body; the terminal device also comprises the touch screen, an induction unit and a control unit which are electrically connected with one another; the touch screen is moveably arranged on the terminal body; when thetouch screen moves relative to the terminal body, the touch screen and the display screen are in an overlapped or staggered state, and the touch screen is provided with at least one touch key; and when the induction unit induces that the touch screen is overlapped on the display screen, the control unit controls the touch key on the touch screen not to display and start, and when the induction unit induces that the touch screen is staggered with the display screen, the control unit controls display and start of the touch key. Thus, the terminal device and the touch screen simultaneously have the common touch screen function and the touch keyboard function based on a pure touch screen technology. In the invention, a physical keyboard is not needed to be arranged, the ultrathin large screenbar design of the terminal device can be ensured and excess cost is not required to be added.

The invention discloses a total station networking measurement method of a large-scale structural component, and belongs to the technical field of industrial measurement. The measurement accuracy in the prior art is low. The total station networking measurement method comprises the steps of before measurement is carried out, enabling a main station total station and an auxiliary station total station to be arranged on the two sides of the to-be-measured large-scale structural component, determining a main station user coordinate system, determining a plurality of reference points at the positions, located between the main station total station and the auxiliary station total station, of the periphery of the large-scale structural component, enabling the reference points to be brought into the main station user coordinate system, enabling six or more of the reference points to serve as station setting reference points, measuring the coordinate values of the station setting reference points, enabling the station setting reference points to be capable of being simultaneously measured by the auxiliary station total station, establishing an auxiliary station user coordinate system according to the station setting reference points, enabling the main station total station and the auxiliary station total station to respectively measure and record the coordinate values of the other reference points, and obtaining conversion parameters according to a parameter coordinate conversion equation. When measurement is carried out, data measured by the main station total station direct serve as measurement results, data measured by the auxiliary station total station serve as measurement results after coordinate conversion is carried out, and measurement on the whole large-scale structural component is completed.

The invention provides an FVFD far-field integral boundary condition calculation method capable of reducing the grid usage amount. The method comprises the steps: building a simulation model, and carrying out the steady virtual time step circulation of the simulation model until the convergence is finished; in each virtual time sub-iteration process, carrying out space flux calculation and implicit iterative solution calculation on each grid block grid and each grid unit in sequence, updating a next-level virtual time sub-iteration step number conservation electromagnetic field value, and when a constant virtual time step cyclically divides an integral equation far-field condition application interval, calculating a state variable at a corresponding boundary in the region by adopting an MUSCL format interpolation, and calculating an external incoming flow state variable by adopting an equivalent current and a magnetic current calculated at an internal virtual integral surface. According to the method, a Fourier transform link required by time domain calculation of the electromagnetic characteristics of a target is reduced, and a large number of convolution calculation problems encountered in boundary condition calculation of time domain integral equations of the same type are avoided.

A foldable, rectangular, protective lingerie case with internal coupleable and removable protuberances, that is resistant to pressure. The protective lingerie case is semiflexible, foldable and manufactured in fabrics or leathers with polypropylene reinforcement and foam layers on all four sides and on the upper lid. It stores, transports, protects and conserves the shape of lingerie, especially of brassieres, in closed and narrow spaces, ensuring that the initial shape of thermoformed brassieres is kept intact. The protective lingerie case safeguards the bra's function and use features by avoiding deformation of the stored garment and guaranteeing its durability and design.

The invention provides a multi-dimensional adjusting test platform for hydraulic engineering and application of the multi-dimensional adjusting test platform and belongs to the technical field of scientific research test devices for the hydraulic engineering discipline. The multi-dimensional adjusting test platform comprises a fixed triangular support, a rotary triangular support, a water supply tank, a water stabilizing plate, a trough, a movable baffle, a water surface profile adjusting baffle, an upstream water level probe, a water return opening, a water storage tank, a triangular weir water return opening, a triangular weir water stabilizing plate, a flow water level detection pipe, a triangular weir, a slope adjusting device, a water pump, a water supply pipe, a flow adjusting valve, a water drainage pipe and a water drainage valve. By the adoption of the multi-dimensional adjusting test platform for hydraulic engineering and application of the multi-dimensional adjusting test platform, measurement of the flow coefficient of the weir / sluice water-retaining and sluicing hydraulic structures and determination of the energy dissipation manner can be achieved, and the weir / sluice structure and the arrangement position are optimized; by the adoption of the trough varying slope function, the water surface profiles of riverways with different slope ratios and the linkage manner of the water surface profiles are simulated; the optimal slope ratios of channels are simulated, and the effect the optimal channel fracture surfaces are designed is guaranteed; and by pushing the elastic movable baffle, laying gravel and adopting other means, the water flow states of the local portions of the riverways and the water flow states of riverways with different roughness coefficients are simulated.

The invention provides folding-type electronic equipment. The folding-type electronic equipment comprises a first body, a second body and a third hinge, wherein the first body comprises a first part and a second part which are connected by a first hinge; the second body comprises a third part and a fourth part which are connected by a second hinge; the third hinge is connected with one of the first part and the second part of the first body and one of the third part and the fourth part of the second body. The folding-type electronic equipment provided by the invention can be folded into a size which is 1 / 4 of the size of the unfolded folding-type electronic equipment, and therefore, further miniaturization can be realized, and moreover, the functionality can be ensured while the size is enough.

The invention relates to a high-voltage transmission line radio interference excitation function determination method which comprises the first step of acquiring a wire split number and radius of branch wires, the second step of establishing a transmission line simulation model, the third step of acquiring average maximum electric field intensity of the wire surface through the transmission line simulation model, and the fourth step of determining a radio interference excitation function value of the transmission line simulation model. According to the technical scheme, the high-voltage transmission line radio interference excitation function determination method is more accurate and reliable on the aspect of predicting a high-voltage transmission line radio interference level.

The embodiment of the invention discloses a satellite-borne synchronous transceiving device, which comprises a power amplifier circuit, a low-noise amplification circuit and a circulator respectivelyconnected with the power amplifier circuit and the low-noise amplification circuit, the circulator is also connected with a microwave switch circuit through a coupler, and the microwave switch circuitis also connected with a synchronous antenna; the power amplifier circuit, the circulator, the coupler and the microwave switch circuit form a transmitting link; and the microwave switch circuit, thecoupler, the circulator and the low-noise amplification circuit form a receiving link. Through the design of the satellite-borne synchronous transceiving device, satellite-borne synchronous transceiver single-machine equipment is successfully developed, a double-base satellite-borne InSAR phase synchronization function is realized, the design realization of a double-satellite phase synchronization system is ensured, the phase error of the double-satellite synchronization system is reduced, and the double-satellite synchronization precision is improved.

The invention relates to the technical field of chip testing, and particularly discloses a method for testing a system-on-chip chip, which comprises the following steps of: receiving a test starting instruction of an upper computer; trimming and testing a to-be-tested chip according to the test starting instruction of the upper computer; recording a trimming test result of the chip to be tested; feeding back the trimming test result to the upper computer; and receiving a test ending instruction of the upper computer. The invention further discloses a system for testing a system-on-chip chip. The method for testing a system-on-chip chip provided by the invention not only can test and adjust the key parameters in the mass production test stage of the to-be-tested chip, but also can realize the function verification of the to-be-tested chip in the FPGA in the design stage of the to-be-tested chip, thereby ensuring that the design of a chip test mode, DFT and other test item functions is correct and errorless.

The invention provides a method for calculating a frequency domain electromagnetic field based on implicit FVFD, and the method comprises the steps of carrying out simulation modeling according to the physical background of an electromagnetic problem simulated by a target in combination with boundary condition information; encrypting quadrilateral or hexahedral structure grids of the numerical calculation area at wall surfaces and geometric singular positions, wherein the grids are gradually far away from scattering wall surfaces and are gradually sparse; outputting a grid data file and setting and outputting a boundary condition file; inputting target calculation electromagnetic parameters and numerical calculation control parameters; inputting grid data and a boundary condition information file, and initializing a calculation space electromagnetic field; carrying out iterative solution on the frequency domain electromagnetic field of the Maxwell equation set; and outputting real part and imaginary part spatial distribution of the electromagnetic field, and outputting surface induced current and radar cross section spatial distribution data. According to the invention, the problem of large-scale electromagnetic scattering of any complex-shape and high-frequency electrically large-size target can be solved.

The invention relates to a milling cutter designing method and a milling cutter, in particular relates to a method for designing a low-entropy and safe high-speed milling cutter and the high-speed milling cutter, and aims to solve the problems that the entropy cannot be controlled due to disordering of particle swarms of the milling cutter and the safety of the high-speed milling cutter is reduced. According to the characteristic that the disordering of the particle swarms of a high-speed milling cutter assembly is associated with the reducing of the safety, a safety reducing process is described by virtue of an entropy determination method; by virtue of an entropy model, a mesoscopic motion state is judged, and the safety reducing process is determined; by virtue of an entropy control method, a control variable for controlling the safety reducing process is revealed, and the disordering of the particle swarms can be effectively controlled; macroscopic and mesoscopic structure parameters are collaboratively designed by virtue of a low-entropy high-speed milling cutter safety designing method; the safety and stability of the low-entropy milling cutter are verified. The diameter of the milling cutter is 63mm, the number of tool teeth is 4, the tool teeth are unequally distributed, included angles between the teeth are 88 degrees, 89 degrees, 90 degrees and 93 degrees, the tooth root of a tool body is of a chamfer and transition circular arc structure, and a front blade installation angle is 2 degrees. The method is applied to milling cuter designing and high-speed milling.

The invention discloses a processing method of a local-reinforcement type full fiber cylinder barrel of a hydraulic cylinder, and relates to a local-reinforcement type full fiber cylinder barrel of a hydraulic cylinder. The processing method has the advantages that the use quality of the cylinder barrel of the hydraulic cylinder is improved, the design difficulty is decreased, the utilization rate of material is improved, and the processing cost and quality cost are reduced. The main material of the cylinder barrel is directly subject to local upsetting, the continuous distribution of metal fibers on the whole cylinder barrel is maintained, the local reinforcement of the cylinder barrel is realized, the stable transition and distribution of strength between the local reinforcement area and the cylinder barrel is realized, the load distribution of the cylinder barrel can be optimized, and the quality reliability of the cylinder barrel is favorably improved.

The invention relates to a handheld type self-puncture riveting machine which can complete riveting operation without punching and is light in weight. The handheld type self-puncture riveting machine comprises a handheld riveting body and a clamping body which is arranged at the front end of the handheld riveting body, wherein a sleeve mold and an upper mold are arranged on the handheld riveting body; the sleeve mold relatively slides and has a hollow structure; the upper mold is arranged in the sleeve mold and slides relative to the sleeve mold; an annular pressing disk with an integrated structure is arranged at the front end of the sleeve mold; a sliding seat capable of sliding relatively is arranged at the position, opposite to the sleeve mold, on the clamping body, and is fixed on the clamping body through a fixing piece; a lower mold seat is fixed on the sliding seat; a lower mold groove is formed in the end part of the lower mold seat; a lower mold is detachably connected to the interior of the lower mold groove; an annular mold groove is formed in the top end of the lower mold; the inner and outer diameters of the mold groove are gradually increased from top to bottom; the top end of a cylinder formed by encirclement of the mold groove is a cambered surface; an auxiliary propping seat is arranged at the position, located on the side surfaces of the sleeve mold and the lower mold seat, on the clamping body, and is fixed on the clamping body through an adjusting screw.

This invention discloses a ping-pong pairing type verification method for switch chip consists of a transmitting port for mutual transmitting / receiving data package, a receiving port for receiving data package and a data package post box. Said invention can find and correct the errors occurred at same location and could not be found formerly to keep the function and operation of network switch chip.

The invention discloses an elliptical track acupuncture mechanism, comprising a main shaft (1) and a push rod (2), the main shaft (1) is connected with a connecting rod (4) through an eccentric wheel (3), and the connecting rod (4) is connected with a connecting rod (4). The push rod (2) is connected, and the acupuncture mechanism also includes a cylindrical cam (5) and a guide sleeve (6), and the follower (7) and the guide sleeve (6) in the guide groove (13) of the cylindrical cam (5) Connection, the present invention is compact in structure, reliable in operation, and can realize elliptical trajectory. The drafting and twisting problems of the fiber web are solved, thereby improving the quality of non-woven products. The invention can make the spindle box consistent with the design of the spindle box of the current common acupuncture machine, which ensures that the design and manufacture of the high-speed acupuncture machine can maintain the technical inheritance with the traditional acupuncture machine.

The invention relates to a test device for a hydraulic multi-way valve of a tractor. The test device comprises an oil tank assembly, a power assembly, a PLC control assembly, a to-be-tested multi-wayvalve, an artificial load oil cylinder, a lifter and a box type base. The test device for the hydraulic multi-way valve of the tractor can test performance of the hydraulic multi-way valve under conditions of different flows, different temperatures and different system pressures, thereby providing technical and parameter guidance to control a process course of batched manufacturing of the hydraulic multi-way valves and guarding an outgoing quality pass.

The invention discloses a method and system for utilizing a Skill program to achieve PCB quick and automatic Gerber out, and belongs to a Gerber out file generating method. The method and system aim at solving the technical problems that when PCB design is conducted on Cadence company Allegro software, a manual mode Gerber out is conducted, time is wasted, the manpower labor intensity is improved,a fault can possibly be caused by a personal reason, and early design is given up halfway. According to technical scheme, 1, a method for utilizing the Skill program to achieve PCB quick and automatic Gerber out is provided, a macro file is formed through a macro recording module through a Gerber out process in an Allegro and is opened through a TEXT format, commands of a Skill program module anda batch processing packaging compressing program module are added and called in the macro file, and PCB quick and automatic Gerber out is achieved; 2, a system for utilizing the Skill program to achieve PCB quick and automatic Gerber out is utilized, and comprises the macro recording module, the Skill program module and the batch processing packaging compressing program module.

The invention provides an implementation method of PWM data transmission in an input mode. According to the method, when a PWM is in the input mode, a CPU configures an input waveform to adopt an FIFO buffer mode in a control register; when the input waveform jumps, jump information and a corresponding zone bit thereof are stored into FIFO; when a storage value in the FIFO reaches a limit value, the CPU interrupts a PWM output waveform, and reads data in the FIFO; and after the CPU reads off the data in the FIFO, the PWM output waveform is started. The CPU does not need to frequently respond to the interruption, so that the data can be rapidly read; and the possibility of data loss is lowered.

The invention relates to the technical field of building curtain walls, in particular to an external sunshade device for a point-supported glass curtain wall and an installation scheme thereof.The external sunshade device comprises an installation frame, a plurality of glass plates and a plurality of connecting claws, connecting heads are arranged at the four corners of each glass plate, and the same installation base is installed on every two vertically adjacent connecting heads of each glass plate; a first rotating rod and a second rotating rod are rotationally connected to the two mounting seats correspondingly, sunshade cloth used for shielding the glass plate is wound around the second rotating rod, a plurality of connecting ropes connected with the sunshade cloth are wound around the first rotating rod, a first gear is arranged on the first rotating rod, and a second gear is arranged on the second rotating rod; synchronous teeth are rotationally connected to the second rotating rod corresponding to the mounting seats, and driving pieces for driving the first rotating rod and the second rotating rod to rotate are arranged on the two mounting seats at the farthest interval on the same horizontal height respectively. The external sunshade device can be conveniently used.

The invention discloses an aluminum alloy formwork system reserved climbing frame hole pre-embedding device which comprises a screw, an inner sleeve, an outer sleeve, nuts and gaskets, threads are arranged at the two ends of the screw respectively, the gasket and the nut are arranged at each of the two ends of the screw from inside to outside in a sleeving mode respectively, the inner sleeve sleeves the middle section of the screw, the outer sleeve sleeves the inner sleeve, and the inner sleeve and the outer sleeve are equal in length and located between the two gaskets. According to the invention, the screw is used as a main connection bearing part, the quick and stable connection of the whole pre-buried device is realized by matching with the inner sleeve, the outer sleeve, the gaskets and the nuts, and the screw, the gaskets and the nuts can be quickly disassembled after concrete is poured, so that the purpose of recycling is achieved, the tensile strength can be guaranteed, an aluminum alloy formwork cannot be damaged, and a fact that too large holes are formed in the aluminum alloy formwork to cause irreversible damage is avoided.

The invention discloses a wardrobe good in air permeability. The wardrobe comprises a wardrobe body connected to a wardrobe door through damping hinges, a base is installed at the bottom of the wardrobe body, two air inlet holes are formed in the side wall, far away from the wardrobe door, of the wardrobe body, and a first air guide pipe and a second air guide pipe are arranged in the two air inlet holes respectively; an air blower is arranged on the outer side wall, far away from the wardrobe door, of the wardrobe body, and an air outlet pipe of the air blower is connected with one end of an air guide pipe; the end, far away from the air blower, of the air guide pipe is connected with the first air guide pipe and the second air guide pipe; an air outlet hole is formed in the side wall, far away from the first air guide pipe and the second air guide pipe, of the wardrobe body and internally provided with an induced draft fan. The wardrobe good in air permeability is simple in structure, ingenious in design and low in manufacturing cost and effectively prevents clothes in the wardrobe from mildewing, and dust cannot be accumulated easily in the wardrobe.

The water conservancy engineering multi-dimensional adjustment test platform and its application belong to the technical field of water conservancy engineering scientific research test equipment, including fixed triangular support, rotating triangular support, water supply tank, water stabilizing board, water tank, mobile baffle, water surface line adjustment baffle , upstream water level measuring needle, water return port, water storage tank, triangular weir return port, triangular weir water stabilizing plate, flow water level detection pipe, triangular weir, slope regulator, water pump, water supply pipe, flow regulating valve, drain pipe, drain valve . The invention can realize the measurement of the flow coefficient of the weir, the gate water and the discharge hydraulic structure, the determination of the energy dissipation mode and the optimization of the weir, the gate structure and the layout position; the slope change function of the water tank is used to simulate different slope ratios. The water surface curve and its connection form; simulate the optimal slope ratio of the channel to ensure the design of the optimal channel section; by means of promoting elastic mobile baffles and laying sand and stones, simulate the flow of local rivers and the flow of different roughness channels. flow of water.

The invention provides an intelligent transformer substation communication method capable of modeling on the basis of a physical port of an Ethernet switch. The intelligent transformer substation communication method is characterized by comprising steps: describing an IEC (international electrotechnical commission) 61850 model of the Ethernet switch by the aid of an RDF (resource description framework) in a form identical to that of an IEC61970CIM (common information model), designing a graphic primitive type model of the Ethernet switch in an AutoCAD (auto-computer aided design), and recording a unique identification of each corresponding resource object in the RDF model via an extended attribute in the Ethernet switch and a port graph; and creating one-to-one corresponding mapping relation between each corresponding resource in the model RDF Schema and each of the Ethernet switch and port equipment of the Ethernet switch, and creating connection relation of a port of an intelligent device and a port of the Ethernet switch by means of drawing connecting lines and folding lines in the AutoCAD. The intelligent transformer substation communication method has the advantages that the physical and logical connection relation between the Ethernet switch and the intelligent device is created and is visually displayed in a graphical manner, and accordingly a design of network communication in a designing process is guaranteed.