35results about How to "Flexible design approach" patented technology

The invention discloses an automatic line-grasping control method of a deicing robot in a high-voltage transmission line. An enhanced learning system is established by setting a state set, an action set, a Q table and a reward function. The method comprises the following steps of: selecting an action a to act on the environment by the system; after the action is accepted, transferring the environment to next state s'; meanwhile, giving out an evaluation signal r; if r meets certain conditions, stopping controlling, and otherwise deciding next action a' by the enhanced learning system according to the evaluation signal and the state s' through a behavior selection strategy; and entering next iteration after updating the Q table. The method overcomes the influence brought by the model error of the robot, inaccurate posture at the tail end of robot arms, complicated environment and the like, and can be used for adjusting the posture at the tail end of the arm on line in real time for realizing the quick and accurate line grasping of the arm without human remote control, thereby achieving the aim of the automatic line-grasping control.

The invention discloses a capacitance type sensor, comprising capacitive polar plates and medium to be measured; wherein, the capacitance type sensor is arranged in a container, the capacitive polar plates form a probe unit and is fixed in the container, two capacitive polar plates of the probe unit are led to the outside of the container by two conductive films and are connected with a lead. By adopting the technical proposal, the size and shape of the probe unit formed by the two capacitive polar plates is designed flexibly, for instance, the measurement of liquid level can be achieved as long as the liquid to be measured is put into an insulated (glass and plastic for instance) container, while the probe unit of a sensor (namely the two capacitive polar plates) is closely adhered to the outside of the container by the two conductive films and the lead is elicited; or the probe unit can be made into a clamp-shaped device and is clamped in a corresponding position of the container when in use. The sensor of the invention is successfully applied to a medical transfusion warning device and a boiler water level control system. Compared with the existing non-contact sensor, the sensor in the invention has the advantages of simple structure and flexible and convenient use.

The present invention provides a digital text watermark technology based on topological character structure and has the basic principle that by means of altering the topological structure of character, different character fonts with the same semanteme are designed and properly coded to carry digital watermark information. The present invention includes several methods of designing character font and coding character font and watermark forming and detecting technology. The digital text watermark technology of the present invention has the features of less visual influence, simple and reliable detection, high robustness, great watermark information capacity, etc.

The invention discloses a design method for a pure medium electromagnetic lens based on a meta-surface. The method includes the following steps that firstly, according to medium materials of the lens and the wavelength of working electromagnetic waves, the relation between phase changes and medium thicknesses is obtained; secondly, according to requirements for the type and focal length of the lens (a convex lens or a concave lens or a reflecting mirror), needed distribution of phase jumps is worked out; thirdly, according to phase distribution requirements, the medium lens with the corresponding thickness is established in electromagnetic simulation software, is simulated and finely adjusted and then can be manufactured, wherein the phase distribution phi is obtained according to the requirement of the lens designed in the second step, distribution of the medium thicknesses is worked out, and modeling and simulating are conducted in the electromagnetic simulation software. The design method is simple and flexible; along with reduction of incidence wavelengths, the focal length of the lens will be increased; a lens set composed of the lens and a traditional lens can eliminate chromatic aberration.

The invention provides a redundancy management method for a double optical fiber channel network communication system. The redundancy management method comprises a redundant code insertion module, an integrity check module, a data buffer module and a redundancy management module. The redundant code insertion module is used for creating FC frames and simultaneously sending each FC frame through two optical fiber channels of an FC terminal; the integrity check module is used for checking the two FC frames according to source addresses in the FC frames and an exchange sequence number index receiving source sequence number table after the FC terminal receives the FC frames sent through the two optical fiber channels, and storing the qualified FC frame in the data buffer module; and the redundancy management module is used for transmitting the FC frame arriving at the data buffer module firstly to the upper layer according to the principle of first come first win. The redundancy management method provided by the invention is reliable, efficient to achieve redundancy management on the FC frames, and is compatible with single optical fiber channel network systems.

The invention discloses a terahertz artificial birefringence device based on a periodic chirped grating. According to the terahertz artificial birefringence device, an artificial birefringence effect is formed through etching a submillimeter-scale relief grating structure on the surface of a high-resistance silicon chip, thereby realizing functions of terahertz wave phase shift and polarization state transition. According to the device, a specific period chirped structure is adopted. Not only is periodicity of the grating kept, but also the chirped structure is introduced. Compared with a common periodic grating, the terahertz artificial birefringence device is advantageous in that the birefringence coefficient and the birefringence bandwidth of the device are improved; a high birefringence coefficient which is larger than 0.35, broadband birefringence flatness and a good linear phase shift characteristic are realized in a terahertz waveband; a highest phase shift coefficient reaches deltaphi=1.6pi; and polarization conversion rate exceeds 99% when the terahertz artificial birefringence device is used as a one-half wave plate. Compared with a metal grating and a metal hypersurface structure, the terahertz artificial birefringence device is made of a full dielectric material and greatly improves transmittance of the device; low loss and broad band are realized; and the terahertz artificial birefringence device can be widely used for regulating terahertz wave phase and polarization.

The invention discloses a three-passband micro-band filter with low loss, based on a wedged SIR (Signal to Interference Ratio) structure. The three-passband micro-band filter adopts a coupling feedback structure on a micro-band transmission line with matched 50ohm resistance, and a rectangular defective geo-structure (DGS) is additionally arranged under the lower side of the three-passband micro-band filter; and a resonator adopts an interdigital wedged SIR (Signal to Interference Ratio) structure. The wedged SIR structure adopts a transition line for improving the resistance mutation of the SIR to achieve the smooth effect, and can be equivalent to a limiting form of a multi-order SIR at the same time, and the coupling effect is stronger. The rectangular defective geo-structure (DGS) additionally arranged under 50ohm of a coupling feeder line is equivalent to that one low-pass filter is cascaded at the front end of a post-stage band-pass filter, thereby the performance of the filter under the condition of not increasing the volume of the filter is further optimized. The invention discloses the three-passband micro-band filter with the low loss on the basis of the wedged SIR structure, the structure of the which is smaller than that of a single filter, and the three-passband micro-band filter can better meet the requirement on modern communication of miniaturized three-passband.

The invention discloses a modularized array high-voltage LED chip and a method for manufacturing the modularized array high-voltage LED chip. The modularized array high-voltage LED chip is composed of at least one unit module, wherein the unit module comprises at least one LED micro crystalline grain, all LED micro crystalline grains are insulated and isolated from one another and are integrated on a substrate, the LED micro crystalline grains of each unit module are connected in series in the mode that the LED micro crystalline grains are all connected with a lead, and all the unit modules are connected in series in the mode that the unit modules are connected with a lead. When the modularized array high-voltage LED chip is manufactured, an N type epitaxial layer, a quantum well luminescent layer and a P type epitaxial layer are grown on a substrate firstly, and a current barrier layer, an ITO transparent conducting layer and a metal electrode are manufactured on the P type epitaxial layer after a material surface, used for manufacturing an N electrode, of the N type epitaxial layer and insulating and isolating tracks between the LED micro crystalline grains are etched; then, cutting is conducted along the insulating and isolating tracks according to the laser scribing technology to obtain the modularized array high-voltage LED chip. According to the modularized array high-voltage LED chip and the method for manufacturing the modularized array high-voltage LED chip, both 30V array high-voltage chips and 60V array high-voltage chips can be obtained, manufacturing cost of the chips is reduced, and multiple chip machining alternatives are provided.

The invention discloses a broadband metamaterial wave-absorbing device. The broadband metamaterial wave-absorbing device comprises a plurality of wave-absorbing units extending in a plane mode, wherein each wave-absorbing unit comprises an upper metal resonance layer, a middle dielectric substrate layer and a lower metal bottom plate reflecting layer; the middle dielectric substrate layer is arranged between the upper metal resonance layer and the lower metal bottom plate reflecting layer; and the upper metal resonance layer comprises N2 metal wafers, wherein the metal wafers are periodicallyarranged on the middle dielectric substrate layer in an N*N mode so as to form a periodic array. The superposition of absorption peaks at different frequencies is realized by combining multiple metalswith different radiuses in the periodic array, so that the broadband absorption effect is achieved.

The invention provides a manufacture method of a dielectric substrate and a metamaterial using the dielectric substrate. By means of the manufacture method of the dielectric substrate, in the manufacturing method of silica aerogel, a single thermal-radiating infrared lamp is used for heating gel blocks, and the gel blocks are dried in a heating method, so that dielectric constants of the manufactured dielectric substrate have the continuously-changing distribution rule. Through the theory, the manufacture method of the dielectric substrate and the memamaterial provides more flexible design ways for functional design of the memamaterial can be provided, and functional application of the memamaterial is greatly expanded.

The invention discloses an electronic stepless speed regulating system for a hybrid electric vehicle. The electronic stepless speed regulating system comprises an engine, a clutch, a composite magnetic flux switching permanent magnet motor, an electric power module, a battery pack, a main reducer, vehicle wheels and a control unit. According to the electronic stepless speed regulating system disclosed by the invention, as the composite magnetic flux switching permanent magnet motor is adopted as a power distribution device, and a mechanical device such as a planetary gear, a sliding ring, a carbon electric brush and the like does not exist, so that loss consumption is low, and the structure is simple; multiple-mode running can be realized by adopting only one motor, so that the space is saved, and the comfortable degree is increased; and the engine works in a high-efficiency running region all the time, thus effectively improving the whole vehicle efficiency.

The invention relates to a wavelike jet method for blade trailing edges, which belongs to the technical fields of mechanical devices and transportation. Starting with a pneumatic means, identical rectangular slots are arranged at all the positions along the spanwise direction of a blade, so that jet slots are formed to realize the mechanism of the effect of a physical lobe structure; by creating a model and carrying out numerical calculation to check the model, a trailing edge jet scheme is finalized, spoilers are added, moreover, the opening degree (i.e., the superposing area between the spoilers and the slots) of each spoiler is controlled, and thereby the actual blade is worked out. The disturbance of designed wavelike velocity distribution can achieve the effects of reducing the noise of a fan, a compressor and a turbine and uniformly distributing the inlet flow temperature of downstream turbine blades. The design method is simple, flexible, practical and particularly suitable for the field of aeronautic / ground gas turbines.

The invention discloses a miniature high-isolation microwave double-frequency power divider. The miniature high-isolation microwave double-frequency power divider comprises an input port, a coupling wire, an isolation network, a first transmission wire, a second transmission wire, a first output port and a second output port. The input port is connected with the first transmission wire and the second transmission wire through the coupling wire. The first transmission wire and the second transmission wire are respectively connected with the first output port and the second output port in correspondence. The isolation network is arranged between the coupling wire and the first transmission wire, the second transmission wire. By adopting the tail non-isolation network of the microwave double-frequency power divider, the size of the power divider and the coupling effect among output ends are effectively reduced, the isolation degree is improved, the circuit structure is compact, the design method is flexible and various, and the practical application range of the conventional microwave double-frequency power divider is greatly expanded.

The invention discloses a field focusing design method of a hundred nanometer scale ultra-fine light needle, which belongs to the technical field of nanophotonics focusing and micromachining. The diffraction propagation behavior of the subsequent light field when the metal film ring plate is structured; second, use the equivalent numerical aperture NAeq and the normalized central occlusion factor ε to constrain the lateral scale of the focused beam, and introduce super-Gaussian function constraints in the axial direction to form a super Fine light needle field, thus establishing a nonlinear constrained optimization model; third, use the configured genetic algorithm and fast Hankel transformation algorithm to program and solve the above optimization model; fourth, set the initial parameters for optimization, including structural parameters and algorithm parameters, Execute the optimization algorithm multiple times, and optimize the microstructured metal film ring belt. Based on the present invention, different polarized light beam illuminations and multi-scale microstructure metal film annular strips can be flexibly designed, which can be applied to realize micro-nano lithography, nano-printing, super-resolution microscopic imaging, etc.

The invention discloses a wide coverage wave beam design method assisted by an intelligent reflecting surface, which is used for enhancing communication coverage of a wireless broadcast channel, and comprises the following steps: firstly, segmenting a target angle range according to a wide coverage communication requirement required by a system, and determining a target wave beam directional diagram for each angle range; according to the target beam directional diagram, obtaining the optimal phase shift of the intelligent reflecting surface by using a conjugate gradient method based on Riemannian manifold; and finally, determining a pre-coding vector of the base station, and adjusting a directional diagram of a reflected beam by setting the phase shift of the intelligent reflecting surface so as to realize a beam scanning function and wide coverage communication. Wide coverage of a wireless broadcast channel is realized by using the intelligent reflecting surface, the designed beam directional diagram has the characteristics of wide beam, small power fluctuation, scannable beam and the like, channel state information of a user is not needed, and reliable wide-coverage communication is provided for a millimeter wave broadcast channel.

The invention belongs to the technical field of automatic control and discloses a system for automatically controlling a manipulator to move back to a starting point. The system is provided with the manipulator for clamping or releasing a workpiece, an air cylinder installed at the rear end of the manipulator and used for pushing the manipulator to move, a dual-coil two-position electromagnetic valve connected with the air cylinder and used for enabling the manipulator to ascend, descend, move leftwards or move rightwards; a single-coil two-position electromagnetic valve connected with the air cylinder and used for clamping or releasing the manipulator, and a control panel connected with the dual-coil two-position electromagnetic valve and the single-coil two-position electromagnetic valve and used for electric control over on-off of the dual-coil two-position electromagnetic valve and the single-coil two-position electromagnetic valve. According to the system for automatically controlling the manipulator to move back to the starting point, a design method is simple, practical and flexible, and the system has application and popularization value.

The invention relates to a wave rider of dual sweepback layout. The upper surface of the wave rider is a plane capable of being tracked by a free stream surface, the lower surface of the wave rider is a curved surface with wave rider performance, and the curved surface is described through a blunt end area, large sweepback areas and small sweepback areas. The blunt end area is a streamline tracking curved surface in wave rider design, and the cut rate of a blunt end leading edge line on an axis of symmetry is zero. The large sweepback areas are also called inner wing parts and are smoothly connected to the two sides of the blunt end area, and the outer profile of each large sweepback area is composed of a leading edge line and a curve; each leading edge line is a large sweepback straight line, and the sweepback ranges from 50 degrees to 80 degrees; and the distance between the tail end of each leading edge line and the edge of the blunt end area is smaller than 30% of the half elongation of the wave rider, and each curve is a streamline tracking line in wave rider design. The small sweepback areas are also called outer wing parts and are smoothly connected to the two sides of the streamlines of the large sweepback areas, a leading edge line of each small sweepback area is a straight line, and the sweepback ranges from 30 degrees to 70 degrees.

The invention discloses a simple uniform optical needle focusing microstructure and a design method. Two sets of binary amplitude Fresnel zone plate radius sequences corresponding to different focal lengths are composited to block a microstructure center region. According to the constructing process, illumination wavelength and a first focal length are given, and a first set of annule radius sequence {r1, n} is determined; a second focal length is primarily elected to acquire a second set of annule radius sequence {r2, m}; partial sequence segments in {r2, m} are appropriately selected to replace partial sequence segments in {r1, n} to form a new microstructure annule radius sequence; according to each annule transmittance, a center occlusion circle is set first, and alternate coding is carried out according to {1,0} from the radius coordinate of the center occlusion circle to each annule transmittance of the outermost annule radius, wherein the initial annule transmittance is 1; and structural parameters are preferred to realize uniform optical needle intensity field distribution. The design method is suitable for a variety of typical polarized laser beam illumination conditions. The designed microstructure can be applied to laser microfabrication, high resolution microscopic imaging, optical control and other fields.

The invention discloses a device and method for reducing the sampling rate of an ADC, including an IQ modulator, a single-pole double-throw switch, an intermediate frequency band-pass sampling link, a PLL reference clock configurator, and a zero-intermediate frequency sampling link. The intermediate frequency band-pass sampling The link and the zero-IF sampling link are arranged in parallel, and the single-pole double-throw switch is used to control the opening and closing of the intermediate frequency band-pass sampling link and the zero-IF sampling link, and select different sampling modes. The present invention combines a traditional zero-IF low-pass sampling device with a band-pass sampling device, uses a built-in switch for channel selection, uses a low-pass sampling device when the signal center frequency is low, and uses a band-pass sampling device when the signal center frequency is high. The structure is simple and easy to process, it can be mass-produced, the structure is limited, and it is easy to implement. Its design method is more flexible, and the signal reception of different frequency bands can be realized by adjusting the channel selection, which simplifies the circuit design from the intermediate frequency to the baseband, and reduces the ADC. sampling rate.

The invention discloses a system and a method for improving radio frequency through broadband wireless communication, and belongs to the technical field of wireless communication, and the system comprises a photoelectric modulator, a photoelectric converter, and a laser. According to the invention, the requirements of radio frequency on a high-speed ADC and a microwave circuit are greatly reduced,and a traditional PLL reference clock configurator is used as a clock source for simulating up-conversion. The clock frequency is influenced by devices, circuits and the like, the design is complex when the frequency is about 100GHz, the cost is relatively high, according to the invention, a broadband photoelectric modulation principle is utilized, under the condition that data transmission is not affected, signals are modulated through laser and then converted into electric signals through a photoelectric converter, due to the fact that the adjustable range of the wavelength of light waves is large, the radio frequency can be greatly improved, a PLL reference clock configurator and a high-speed DAC are omitted, and finally the purposes of improving performance and reducing device complexity are achieved.

The invention relates to a wavelike jet method for blade trailing edges, which belongs to the technical fields of mechanical devices and transportation. Starting with a pneumatic means, identical rectangular slots are arranged at all the positions along the spanwise direction of a blade, so that jet slots are formed to realize the mechanism of the effect of a physical lobe structure; by creating a model and carrying out numerical calculation to check the model, a trailing edge jet scheme is finalized, spoilers are added, moreover, the opening degree (i.e., the superposing area between the spoilers and the slots) of each spoiler is controlled, and thereby the actual blade is worked out. The disturbance of designed wavelike velocity distribution can achieve the effects of reducing the noise of a fan, a compressor and a turbine and uniformly distributing the inlet flow temperature of downstream turbine blades. The design method is simple, flexible, practical and particularly suitable for the field of aeronautic / ground gas turbines.

The invention discloses a three-passband micro-band filter with low loss, based on a wedged SIR (Signal to Interference Ratio) structure. The three-passband micro-band filter adopts a coupling feedback structure on a micro-band transmission line with matched 50ohm resistance, and a rectangular defective geo-structure (DGS) is additionally arranged under the lower side of the three-passband micro-band filter; and a resonator adopts an interdigital wedged SIR (Signal to Interference Ratio) structure. The wedged SIR structure adopts a transition line for improving the resistance mutation of the SIR to achieve the smooth effect, and can be equivalent to a limiting form of a multi-order SIR at the same time, and the coupling effect is stronger. The rectangular defective geo-structure (DGS) additionally arranged under 50ohm of a coupling feeder line is equivalent to that one low-pass filter is cascaded at the front end of a post-stage band-pass filter, thereby the performance of the filter under the condition of not increasing the volume of the filter is further optimized. The invention discloses the three-passband micro-band filter with the low loss on the basis of the wedged SIR structure, the structure of the which is smaller than that of a single filter, and the three-passband micro-band filter can better meet the requirement on modern communication of miniaturized three-passband.

The invention discloses a terahertz artificial birefringence device based on a periodic chirped grating. According to the terahertz artificial birefringence device, an artificial birefringence effect is formed through etching a submillimeter-scale relief grating structure on the surface of a high-resistance silicon chip, thereby realizing functions of terahertz wave phase shift and polarization state transition. According to the device, a specific period chirped structure is adopted. Not only is periodicity of the grating kept, but also the chirped structure is introduced. Compared with a common periodic grating, the terahertz artificial birefringence device is advantageous in that the birefringence coefficient and the birefringence bandwidth of the device are improved; a high birefringence coefficient which is larger than 0.35, broadband birefringence flatness and a good linear phase shift characteristic are realized in a terahertz waveband; a highest phase shift coefficient reaches deltaphi=1.6pi; and polarization conversion rate exceeds 99% when the terahertz artificial birefringence device is used as a one-half wave plate. Compared with a metal grating and a metal hypersurface structure, the terahertz artificial birefringence device is made of a full dielectric material and greatly improves transmittance of the device; low loss and broad band are realized; and the terahertz artificial birefringence device can be widely used for regulating terahertz wave phase and polarization.

The invention provides a hyperspectral image target detection method and device, the method is realized based on an FPGA development board, and the method comprises the steps: obtaining a to-be-detected hyperspectral image, and forming an original matrix of the hyperspectral image; calling an IP core realized based on an FPGA development board, and calculating the hyperspectral image matrix by adopting an RX algorithm to obtain a target information result matrix; and comparing the target information result matrix with a preset judgment threshold, and if the target information result matrix is greater than the judgment threshold, determining the target information corresponding to the target information result matrix as the target information of the hyperspectral image. The complex calculation process is transplanted through the FPGA device, and compared with a traditional processor, hyperspectral image target detection can be rapidly and efficiently carried out.

The invention relates to an online product customization system and method based on remote sensing data, and the method comprises the steps: providing a resource cooperation service through setting an online customization service platform, a resource cooperation platform and a comprehensive service management platform according to the online customization product demands of a user, and monitoring and managing the whole process of product completion, the system is based on a service-oriented architecture, the service-oriented architecture provides a design method which is more flexible and easy to expand and maintain for establishment of the system, the system can well meet the requirement of a user for customizing remote sensing products, meanwhile, the flexibility of the system is kept, and diversified remote sensing data production requirements are met.

An electronic stepless speed regulating system for a hybrid power automobile based on a compound type switched reluctance motor comprises an engine, a clutch, the compound type switched reluctance motor, an electric power module, a battery pack, a wheel driving system, a control unit and the like. According to the electronic stepless speed regulating system disclosed by the invention, the compound type switched reluctance motor is used as a power allocation device and no mechanical devices, such as a planetary gear, an electric brush and a slip ring or a permanent magnet material are used, so that the electronic stepless speed regulating system has the advantages of low loss, simple structure and high reliability. The electronic stepless speed regulating system can realize the operation of multiple modes by adopting one motor, and thus the utilization rate of the space is high; and in addition, two power circulating paths which can be independently controlled are arranged, so that the flexibility and the redundancy are greatly improved. According to the electronic stepless speed regulating system disclosed by the invention, the engine can be enabled to be always positioned in a high-efficiency operation zone and the efficiency of an entire automobile is effectively increased.

The invention provides a buckling-preventing metal energy-dissipating component, a shear wall structure and a coupling beam structure. The buckling-preventing metal energy-dissipating component comprises an energy-dissipating element, first buckling-preventing elements and two elastic connecting elements. The energy-dissipating element is a metal energy-dissipating element and comprises two surfaces, two side faces and two end faces. The first buckling-preventing elements are arranged on the two surfaces of the energy-dissipating element. The elastic connecting elements are arranged on the twoend faces of the energy-dissipating element. The technical schemes that the metal energy-dissipating element is utilized and plane external buckling is restrained are provided, the elastic connectingelements can flexibly adjust the rigidity of the whole energy-dissipating component, and restraining elements do not need to be arranged on the overall length of the whole energy-dissipating component; plastic damage is concentrated on the energy-dissipating element, and after damage, only the core energy-dissipating element needs to be replaced; and the design method is flexible, the structure is simple, the buckling-preventing metal energy-dissipating component can be suitable for a steel plate wall component or a coupling beam component well, use of steel is reduced, and the product cost is reduced accordingly.