65results about How to "Short implementation time" patented technology

An antenna communication architecture for simultaneous optimal tracking of multiple broadband satellite terminals in support of in theatre operations and rapid deployment applications, and methods in relation therewith. This communication architecture is especially suitable for implementation as a hosted payload configuration on a host spacecraft.

The technical scheme of the invention discloses an exposure control method and device. The exposure control method comprises the following steps: calculating an average brightness of a scene; performing scene recognition according to scene illumination evaluation, a histogram light region ratio and a histogram dark region ratio, so as to obtain a target brightness value of an adaptive scene; and adjusting parameters of an image sensor according to the average brightness of the scene and the target brightness value of the adaptive scene, so as to enhance or reduce the image brightness. The exposure control method and the device provided by the technical scheme of the invention adaptively adjust the complexity and diversity of the scene, and ensure the speed and stability of automatic exposure control.

An EEMD neural network based real-time data abnormal value detection method is provided, and the problem that the existing real-time data abnormal value detection method does not consider the historical data abnormal value is taken into account. The method comprises: obtaining historical time series data, and sorting the historical data according to a chronological order; using a median method to carry out preliminary detection on the historical data; finely detecting the historical data by using an EEMD method, and replacing the detected abnormal value with a zero value; then using the curve fitting method to fill the zero value, that is, correcting the abnormal value, and obtaining historical data closer to the objective reality after carrying out abnormal value detection and correction; and finally, by learning the historical data, using the neural network method so that the to-be-reported real-time data can be more accurately predicted, comparing the predicted value with the real-time reported monitored value so that whether there is abnormality can be determined, and correcting the abnormality. The method can be used to detect the real-time data abnormal value in one-dimensional time series, and is applicable to a wide range of fields such as water resources, traffic, weather, thermal power generation and other real-time monitoring data abnormal value detection.

The invention provides an optimal multiuser detection method based on an evolutionary chaotic quantum neural network. The method comprises the following steps: establishing an optimal multiuser detection model; initializing an initial parameter of the chaotic quantum neural network, and activating the chaotic quantum neural network to acquire an approximate optimal solution; initializing the individual quantum, assigning the binary measurement state of the first individual quantum as the output value of the chaotic quantum neural network; constructing a fitness function and computing the fitness; evolving the quantum state of the individual quantum and acquiring a new measurement state by using a simulated quantum revolving door; activating the quantum neural network evolution mechanism in evolutionary chaotic scrambling to produce a sub-optimal solution for the binary state of each individual quantum; computing the fitness function value of each individual quantum to find out the global optimal solution; and outputting the global optimal solution as an optimal result for the multiuser detection. The detection method provided by the invention has excellent multi-access interference resistance and far-near effect resistance, wide application range, and can acquire the optimal detection result within the short time.

The invention discloses a Bayer format image interpolation method based on gradients and a display device based on an FPGA. Aiming at color recovery of red and blue pixels, improvement is carried out on bilinear interpolation; averaged interpolation processing is no longer simply carried out to pixels; horizontal and vertical gradients and left and right diagonal gradients of the pixels are calculated according to Sobel operators; horizontal and vertical weighting coefficients and left and right diagonal weighting coefficients are determined according to the ratio relation of the horizontal and vertical gradients and the ratio relation of the left and right diagonal gradients; therefore, the interpolation results of the red and blue pixels are obtained. The display device in the invention takes the FPGA as a core platform; the parallel processing and modular design advantages of the FPGA are utilized fully; the realization time of module functions such as graphic image generation, collection of video image data, color interpolation processing and graph overlapping and displaying is reduced; and the display demands of the airborne display device for high resolution and high rate graphic images are satisfied.

The invention discloses supersaturated brazing filler metal. The supersaturated brazing filler metal comprises base brazing filler metal and a metal electroforming layer covering the base brazing filler metal, and a transition layer formed by diffusion reaction between solid solutions in the base brazing filler metal and the metal electroforming layer is arranged between the base brazing filler metal and the metal electroforming layer. A preparation method comprises the steps of placing raw metal material of the base brazing filler metal into a smelting furnace and prefabricating the raw metal material to form the base brazing filler metal through casting, annealing, extruding and rolling or drawing formation; electroforming the metal layer on the surface of the base brazing filler metal through the electroforming process, placing the base brazing filler metal into a vacuum drying oven of 25-250 DEG C for permeation for 0.5-10 minutes after the electroforming process is completed, placing the permeated base brazing filler metal into a thermal treatment furnace of 20-230 DEG C for diffusion for 2-30 hours and finally cooling the base brazing filler metal naturally in the furnace so as to obtain the supersaturated brazing filler metal. The supersaturated brazing filler metal is low in melting temperature and good in wettability and can be applied to the medium-temperature brazing field after being machined into strip shapes or thread shapes or rod shapes. The preparation method provides a new technological approach for manufacturing and producing of the brazing filler metal.

Provided is an ultra-low sidelobe constant modulus waveform design method. The ultra-low sidelobe constant waveform design method includes the following steps of 1. generating a uniformly distributedsequence satisfying the constant modulus requirements and calculating the autocorrelation function of each item in the sequence to achieve the pulse auto-correlation of the sequence; 2. introducing anauxiliary variable to establish a non-convex optimization model for the pulse auto-correlation sequence obtained in step 1; and 3. solving the non-convex optimization model by means of the alternative direction multiplier method to obtain the target constant modulus waveform sequence. The established non-convex model is solved by the alternative direction multiplier method, the desired waveform sequence is generated by continuous iteration, the sequence x is subjected to rapid Fourier transform in the algorithm iteration, the iteration speed of the algorithm is accelerated, and a radar waveform with low sidelobe and good convergence can be rapidly designed.

The invention discloses a free-radical scavenger for resisting insulation aging of a power cable and an automatic healing method of the free-radical scavenger. The method is characterized by comprising the following steps of: uniformly mixing 10 to 20 parts of 2,-methyl-4,6-di(octylthiomethylene)phenol, 5 to 10 parts of dodecylbenzene sulfonic acid and 10 to 20 parts of siloxane repair liquid, and thus obtaining the free-radical scavenger; fully and uniformly mixing the free-radical scavenger which is uniformly mixed with 50 to 75 parts of solvent; dispersing by using an ultrasonic dispersion machine and a sanding dispersion machine together, and thus obtaining a dispersion solution of the free-radical scavenger; compressing air by using an air compressor to make injection pressure between 0.1 MPa and 0.8 MPa; and filtering in a filter bottle, adding the dispersion solution of the free-radical scavenger into a solution tank of the free-radical scavenger, injecting a free-radical scavenger solution into a cross-linked polyethylene cable core under the action of pressure for 0.5 to 4 h, and then stopping injection.

Method for simplifying physical downlink shared channel (PDSCH) power control in a DSP and an apparatus thereof are disclosed. The method comprises the following steps: 1. generating two modulation tables corresponding to a PA and a PB, and respectively performing PA and PB look-up table modulation to data which needs to be modulated; 2. respectively taking the data of the modulated PA and PB according to a precoding matrix; 3. according to whether there is a cell-specific reference signal (CRS) in an orthogonal frequency division multiplexing (OFDM) symbol in which a mapped resource element (RE) is located, taking the data to be mapped in a parameter list corresponding to the PA and the PB. The power control method provided in the invention is simple. Computation quantity is small. Realization time is shortened. Using the method is convenient for the DSP to realize. Power control operation of the PDSCH in the DSP can be realized and a signal after being power controlled is performed mapping.

The present invention relates to a method for the demodulation of the ADIP data of a wobble signal of an optical recording medium, whereby the wobble signal comprises different types of wobble periods, and to an apparatus for reading from and/or writing to optical recording media using such method. According to the invention, the method comprises the steps of transforming the frequency and/or phase of harmonic deviations within the wobble signal to amplitude deviations, detecting the amplitude deviations, and detecting a current type of wobble period from the detected amplitude deviations.

The invention belongs to the image compression field in the information technology, in particular to a DSP efficient concurrent control method in a JPEG2000 compression algorithm. The current data read from a first memory are processed under bit-plane scanning to produce results which are wrote into a second memory, meanwhile, the pervious group of data is shifted to an external cache from a third memory; and the data are read from the second memory and are processed under arithmetic coding to generate results which are wrote into the third memory, meanwhile, the next group of data is shifted into the first memory from the external cache. The invention makes the concurrent implementation of EBC algorithm operation and data shifting possible. The invention can execute the shifting process in the process of executing any cycle, and the shifting process is executed at the background without occupying the processing time of CPU, that is equivalent to the data shifting process without time spending, thereby realizing zero-time data shifting.

A preparation method of a hydration resistant aluminum electrode foil belongs to the technical field of electronic materials, and relates to the preparation method of an aluminum electrode foil in an aluminum electrolytic capacitor. The preparation method is realized according to a technical thought of inhibiting a 'wet electronic state' effect of an oxide film on the surface of the aluminum electrode foil to improve the hydration resistance of the aluminum electrode foil. The preparation method specifically comprises the following steps: soaking anodized aluminum electrode foil in organic phosphoric acid or an organic phosphonate solution containing a plurality of phospho structures, and then heating by temperature control to obtain the aluminum electrode foil with the high hydration resistance. A used hydration resistant treating agent can be intensively bonded on the surface of aluminum oxide and occupy active points of the surface, thus well inhibiting generation of the 'wet electronic state' effect and finally improving the hydration resistance of the aluminum electrode foil. The preparation method is realized completely in an aqueous solution system, has simple application equipment and short processing time, is compatible with the chemosynthesis line in the existing industry and can be directly merged into the chemosynthesis line in the existing industry.

The invention discloses an intelligent statistical system and a method based on on-line big data, wherein, the intelligent statistical system based on on-line big data is characterized in that the intelligent statistical system comprises a system management module, a data receiving module, a file management module, a data statistics module, a data analysis module, a data storage module, a query module, a statistical file and a data file. An intelligent statistical method based on online big data is characterized in that the intelligent statistical method comprises an online data statistical method and an intelligent data analysis method; The data statistics module can generate statistical algorithms and obtain statistical results, does not require developers to modify codes according to statistical requirements, reduces the realization time of statistical requirements, and reduces the cost; The data analysis module adopts the idea of classification analysis, facilitates the informationization management, improves the efficiency of the informationization management, improves the utilization quantity and the utilization efficiency of the resources, helps the user to make the correctjudgment, and has high application value.

In a knitting process a knitted flat panel is produced on a needle bed from which it is finally cast off by looping a starting warp stitch on a second needle bed (H, V) not bearing thread. The second needle bed is then shifted towards the next line to be cast off on the first needle bed. The next line to be cast off is then dropped to the line of needles. The two joined lines are then cast off, forming a new common seam.

Presented is a communication system in a motor vehicle which is designed to participate in a chain-like ad-hoc radio network comprising a number of traveling motor vehicles. The system includes a control unit, a transmission/reception unit in communication with the control unit, and an orientation unit configured to determine an orientation of the motor vehicle relative to a reference direction, the orientation unit being in communication with the control unit. The control unit is configured to determine the orientation of the motor vehicle with respect to an orientation of at least one other motor vehicle which is received by the transmission/reception unit.

The invention discloses a SoC prototype verification method based on FPGA. The prototype verification system adopted is composed of a motherboard and a daughter board. The FPGA of the motherboard comprises a SoC module to be tested (1) and a motherboard interface control module (2). The daughter board is connected with the motherboard through a test connector (3); the daughter board FPGA comprisesa daughter board interface control module (4) and a test interface (5). A motherboard interface control module (2) compresses and sends signals of modules to be tested to a daughter board interface control module (4) by using a time division multiplexing technology, and the daughter board interface control module (4) extracts and analyzes signals to be distributed to a test interface (5), and thetest interface (5) is connected with a test device. This method is free from the prototype verification system FPGA storage resources are limited, using the built-in logic analyzer tool ChipScope subject to test signal bit width, sampling depth limit. As ChipScope is not needed, it can significantly reduce the utilization rate of FPGA memory resources, shorten the FPGA implementation process, andhas high practical value for improving the verification and test efficiency.

The invention relates to a double-layer PCB welding device, clamp and method and a welding clamp for a PCB and a connecting pin. The double-layer PCB welding device comprises the welding clamp for thePCB and connecting pin and the double-layer PCB welding clamp, wherein the connecting pin is welded and fixed to an auxiliary plate through the welding clamp for the PCB and connecting pin, two sliding blocks of the double-layer PCB welding clamp are pushed aside, then the auxiliary plate is placed on the lower layer of the clamp, a main plate is placed in the upper layer of the clamp through limiting and clamping of the sliding blocks, the clamp is provided with a limiting protrusion, the limiting protrusion is matched with pressing of a first cover plate for fixation, then welding is conducted, and therefore two welded plates are parallel, and high-precision welding and positioning of the connecting pin are achieved. According to the double-layer PCB welding device, clamp and method andthe welding clamp for the PCB and the connecting pin, the structural design is reasonable, use and operation are easy and convenient, the positioning and fixing precision is high, the cost is low, the implementation time is short, and the double-layer PCB welding device, clamp and method and the welding clamp for the PCB and the connecting pin are capable of being applied to the connecting, welding and assembling process of double-layer PCBs of the same size, in the same space and of different types.

The invention discloses an energy balance control method of a cascaded H-bridge type energy storage system. The method comprises a cascaded H-bridge type energy storage system inter-phase energy balance control method and a cascaded H-bridge type energy storage system in-phase energy balance control method. The interphase energy balance control method comprises the following steps: calculating interphase energy balance coefficients among an A phase, a B phase and a C phase in a cascaded H bridge; and realizing energy balance by adjusting carrier waves of the corresponding phases through the inter-phase energy balance coefficients. In the in-phase energy balance control method, in-phase energy balance coefficients in the A phase, the B phase and the C phase in a cascaded H bridge are calculated; and the energy balance is realized by adjusting the carrier waves in the corresponding phases through the in-phase energy balance coefficients. In the invention, working time of a cascaded H-bridge PCS power tube is changed by multiplying the carrier waves of the energy storage system by the corresponding balance coefficient, a purpose of differentially charging and discharging different power units among the phases A, B and C and in the same phase is realized, and finally, the balance of energy stored in the energy storage units among the phases and in the phases is realized.

The invention belongs to the technical field of alliance block chains, and constructs a visualization system, the visualization system comprises a block chain layer, a database layer, a service processing layer and a display layer, and visual creation of alliance block chain service isolation is completed in cooperation with the four layers; besides, on the basis of the visualization system, a visual service channel creation method is provided for the alliance block chain user; the invention also discloses a visual business channel browsing and management method. Compared with the prior art, the realization difficulty and complexity of the block chain visualization service isolation are obviously reduced; the implementation efficiency of block chain service isolation is improved, so that the resource utilization rate of the block chain service is increased, the construction cost is reduced, the block chain node configuration and control are integrated and automated, management is carried out in a visual mode, and the implementation time of accurate block chain channel establishment service at each time can be shortened from the hour level to the second level.

The invention discloses a beam space direction finding method based on a quantum meme evolution mechanism, and belongs to the field of array signal processing. The method comprises the main steps thatbeam space processing is carried out on signal sampling data, and a maximum likelihood target equation of a beam space is obtained; population of a quantum meme method is initialized; the adaption degree is constructed and calculated, and high-quality quantum individuals are recorded; the quantum individuals are evolved to generate new quantum individuals; a new population obtained after evolution is merged with the original population, and the new population is selected; the high-quality quantum individuals are searched locally to search for a high-quality solution; and the globally optimalquantum individual is mapped to an angular space of the DOA and output as a direction finding result. The method has the advantages of low computational complexity and high stability, the direction ofa coherent source can be measured, and the technical problems that an existing maximum likelihood type range finding method is high in computational complexity and complex in system and a characteristic decomposition type range finding method cannot measure the direction of the coherent signal source effectively are solved.

The invention discloses a compensating method for control loop oscillation due to viscosity property of a valve. The compensating method comprises the following steps: (1) after the control loop generates oscillation due to viscosity property, switching the loop to an open-loop mode and outputting a control signal m(t); (2) correspondingly processing the control signal m(t) and a process output signal y(t) to obtain a variable relationship within at least one complete oscillation period; (3) adopting a He viscoelastic model, obtaining a value of a target position vss of the valve according to the relationship of the control signal m(t) and a viscous parameter fd as well as the variable relationship in the step (2), and further obtaining an expected value mss of the control signal; (4) compensating the control signal m(t) until the control signal reaches an estimated value ^mss of the expected value. According to the compensating method, realizing time for a two-step process can be effectively shortened, negative effects to a process loop in a compensating process are lowered, the compensating precision can be regulated according to the practical needs, and important practical value is realized while the efficiency of the production process is improved.

The invention relates to a rapid implementation method for a comprehensive test process. The method comprises the following steps: classifying test functions according to hardware interface types of ato-be-tested system; designing a test function unit for each test function category; enabling all test function units to adopt unified interface parameters; designing a test configuration informationinterface, and establishing a mapping relationship between configuration information and each test function unit; establishing a corresponding relationship between the test flow demand and test flowconfiguration information, storing the test configuration information in a configuration file, wherein one row in the file corresponds to one test item; sequentially reading each piece of configuration information from the configuration file, analyzing and judging the test function types and the test function units corresponding to the test function types, transmitting the configuration information to the interface parameters of the test function units, completing the execution of the current test items by the test function units, and outputting test results through the interface parametersuntil all the test items are executed and the test process is completed.

The invention relates to the technical field of data processing systems or methods specially suitable for management and supervision, in particular to an information management system based on a cloud platform, which comprises a construction subsystem used for acquiring function requirements and index requirements, constructing function units according to the function requirements and the index requirements, and constructing an enterprise management system according to a plurality of function units; an adjusting subsystem which is used for adding a supplementing unit and establishing a connection between the supplementing unit and the existing unit, and is used for screening a deleting unit and disconnecting the deleting unit from the existing unit; and an index sharing module which is used for uploading the index creation rules for configuring the actual indexes and the acquisition parameters to the cloud platform as sharing rules. By the adoption of the scheme, information intercommunication between all sections of an enterprise can be achieved, and functional units can be increased or decreased according to needs after an enterprise management system is built.

The invention provides a device and method for removing dust for a mining train loading station, and belongs to the field of dust removing devices and methods. The device is characterized in that dust in a restricted space is removed by using vapor atomized fluid as dust-removing energy and compressed air as a main energy source, the moisture content in the device has little influence on loaded materials, and the formed air-water atomized density wave can be used for closing the path of coal dust which is diffused and migrated from the opening at the upper part of a train in the coal loading process and gathering new dust-removing energy to constantly and repeatedly remove dust along the main direction of density wave diffusion. The device for removing dust for the mining train loading station is simple to assemble and convenient to maintain, can be used for solving the problem which is urgent to be solved in the prior art, and can be used for removing dust in the restricted space with high reliability, no secondary pollution and strong implementation. The device and method can realize all-weather maintenance-free long-term and stable work, and are widely applicable to systems and industries of mines, agriculture, petrochemical engineering, metallurgy, electricity, pharmacy, environmental protection and the like.