71results about How to "Improve correction ability" patented technology

The invention relates to the technical field of power batteries of electric automobiles, and discloses a composite estimating method of a power battery SOC based on a PNGV equivalent circuit model. The composite estimating method comprises the following steps that A, the open-circuit voltage of the power battery is detected; B, an open-circuit voltage method is used for calculating the primary SOC (t0) of the power battery; C, in the time period of t0-t1, an EKF algorithm is used for correcting the primary SOC (t0), and an SOC (t1) is obtained; D, in the time period of t1-t2, an improved ampere-hour integral method is used for estimating; E, when the power battery is continuously used, the steps from the step C to the step D are circulated; the t0 represents the primary time, and the t1 and t2 represent the time points after the t0. According to the composite estimating method of the power battery SOC based on the PNGV equivalent circuit model, the correction coefficients of influencing factors such as the charging and discharging currents of the power battery, the environment temperatures, the battery health state are considered, the improved ampere-hour internal method is used, and the defect that the influence from outside factors is large when the ampere-hour internal method is used for estimating the power battery SOC can be overcome. The advantage that an EKF method has a powerful correcting effect on initial errors of the SOC is fully used.

A gripping mechanism for replacing spatial on-orbit modules relates to a gripping mechanism for replacing spatial modules, and aims to solve problems that an existing gripping mechanism for replacing spatial on-orbit modules is complex in structure, single in function, large in volume, heavy in weight and low in positioning precision and is inflexible. A stepping motor is mounted in a driving rack, a transition plate is connected onto an upper end surface of the driving rack, a conical positioning piece is disposed on the upper end surface of the transition plate, a driven rack is covered on the outer portion of the conical positioning piece, two positioning columns arranged radially are symmetrically mounted on the lower portion of the conical positioning piece, the upper end of a screw is connected with the conical positioning piece in a threaded manner, a wedge-shaped slider is connected onto the screw, the lower end of the screw is connected with the stepping motor, second notches are arranged on the conical positioning piece, tubular columns are mounted on the tops of the second notches in a clamped manner, conveying pipes are communicated with counter bored holes of the tubular columns, inclined surfaces of the tubular columns are abutted to the wedge-shaped sliders, and a spring is arranged between each of catches and the conical positioning piece. The gripping mechanism is used for on-orbit module service for a spacecraft and on-orbit connecting tasks.

An adaptive optics retina imaging system based on a bimorph deformable mirror mainly comprises two bimorph deformable mirrors, a Hartmann wavefront sensor (HWS), a CCD camera and a control system. The system is characterized in that the two bimorph deformable mirrors adopt different structures; one of the bimorph deformable mirrors has fewer unit numbers and is used for correcting large-amplitude defocus and astigmatism while the other one has more unit numbers and is used for correcting other higher order aberration with relatively small amplitude; the two deformable mirrors form a series connection structure in the lightpath. With the advantages of compact structure and large correcting value, the bimorph deformable mirror can greatly shrink the volume of the current system and provide greater correction capability; relatively low manufacturing cost of the bimorph deformable mirror can contribute to reduction of the cost of the system.

The invention provides a prediction and correction method of nodes of a star point track image, and the method comprises the following steps of: (1) the prediction and the imaging of a star point dynamic track with nodes; (2) the judgment of the nodes and the selection of a template; (3) the correction. The prediction and correction method of nodes of a star point track image of the invention performs a selective judgment and a position correction with pronounced features to the nodes on a star point trajectory, ensures the prominence and the position precision of the template at the node, consequently ensures the processing precision of a deep-space star point track image, and facilitates the improvement of the matching precision of the next step.

The embodiment of the invention relates to the technical field of optics, and discloses a projection camera lens. The projection camera lens comprises a DMD chip, an equivalent prism, a galvanometer,a first refraction lens group, a diaphragm and a second refraction lens group in sequential arrangement, wherein the first refraction lens group comprises a first lens, a triple glued lens and a fifth lens in sequential arrangement; the triple glued lens comprises a second lens, a third lens and a fourth lens; and the fourth lens is an aspherical lens. The triple glued lens can realize good correction capability on spherical aberration, chromatic aberration and secondary spectrum, so that the definition of a projection image emitted from the projection camera lens is high; and the size of theprojection camera lens is small.

The invention discloses a method for correcting sliding deviation of refinement temperature prediction. The method comprises: obtaining a weather prediction product with temperature numerical value ofa real-time point; calculating daily highest and lowest temperature prediction of the real-time point; determining a temperature prediction deviation statistic and an optimal sliding statistic period; performing a deviation sliding statistic of the daily highest and lowest temperature prediction; performing the correction of the deviation of the refinement temperature prediction according to thecorrected deviation of the daily highest and lowest temperature prediction; reporting the corrected temperature from a real-time point to a prediction site or a intelligent grid point; developing a timing running program according to the numerical prediction product and the real-time product which automatically runs every day; and outputting a corrected temperature site or a intelligent grid prediction product in real-time to realize the correction of the sliding deviation of the temperature prediction. According to the method for correcting the sliding deviation of the refinement temperatureprediction, the deviation correction can be realized by the sliding statistic on the numerical model temperature prediction, accuracy of the numerical prediction product can be not only improved, a data statistics collation process of long-term sequences can be simplified.

The invention discloses a synchronizing circuit of a flow distributing and collecting valve for a two-column gantry lifter and belongs to the field of hydraulic transmission. The two-column gantry lifter comprises an oil tank, a hydraulic pump, an overflow valve, a reversing valve, hydraulic cylinders, hydraulic control one-way valves and the flow distributing and collecting valve. An inlet oil pipe of the hydraulic pump is connected with the oil tank, an outlet oil pipe is respectively connected with the overflow valve and a reversing valve, an oil return pipe of the overflow valve and the reversing valve is connected with the oil tank, the flow distributing and collecting valve is connected with an oil port B of the reversing valve, the hydraulic control one-way valves are serially connected on connecting oilways of the hydraulic cylinders and the flow distributing and collecting valve, and control oilways of the hydraulic control one-way valves are connected on an oil port A of the reversing valve. The synchronizing circuit solves the problem that during operating of the two-column gantry lifter, ascending and descending speed and displacement are less synchronous of the hydraulic cylinders, and has the advantages of simple structure, reasonableness in design and manufacturability.

The invention provides a horizontal type corrective pinch device which is used in strip steel processing line. The horizontal type corrective pinch device comprises a base, a fixing frame, a motor, a compression roller frame, a compression roller and a pinch roll, wherein the fixing frame is connected with the base and can rotatably adjust the angle. A guide rail and a moving frame are installed on the fixing frame, wherein the moving frame can move on the guide rail, a compression roller frame drive hydraulic cylinder is installed on the side surface of the moving frame, the compression roller frame is connected with the moving frame in a hinged mode and connected with the compression roller frame drive hydraulic cylinder, the compression roller frame can be driven by the hydraulic cylinder to revolve around the hinge point, the pinch roll is installed on the moving frame, and the position of the pinch roll rightly faces the compression roller which is in the compression roller frame. The horizontal type corrective pinch device can effectively overcome the defect of deviation in the operation of strip steels, ensure the safety of rolling equipment of the strip steels and meet the quality requirement of products.

The invention discloses a local oscillator IQ signal phase and amplitude calibration device, and belongs to the technical field of radio frequency integrated circuits. Phase calibration and amplitude calibration of two paths of IQ signals by adding an amplitude calibration module and a phase calibration module to an output end port of a local oscillator. The method is suitable for various wireless transceivers, electronic interference machines, vector network analyzers in modern microwave measurement instruments, microwave sweep signal generators and other devices, is particularly suitable for phase calibration and amplitude calibration of local oscillator signals at a satellite navigation radio frequency front end, and can conveniently realize correction and calibration work in a digital-analog combined mode according to the parameters in a digital signal control simulation circuit. A calibration circuit is good in performance, wide in correction range, high in correction capacity, convenient to control, feasible, flexible and diverse in work mode and good in application prospect.

The invention discloses a coating machine rolling mechanism. The coating machine rolling mechanism comprises a main rack, a supporting table which is arranged on the main rack, a slide platform whichis arranged on the supporting table in a sliding mode, a clamping mechanism which is arranged on the slide platform for clamping a winding roll core, and a deviation rectifying system which can drivethe slide platform to horizontally slide on the supporting table. Through the structure, the winding roll core clamped by the clamping mechanism arranged on the slide platform can be driven to deviate, so that the deviation rectifying function is realized; the supporting table can be guided out on any position, so that the two ends of the sliding direction of the slide platform on the supporting table are not equipped with traction walls or other barriers, and therefore, when the deviation rectifying system rectifies deviation, the slide platform is not limited in the sliding direction, the potential safety hazards of easily pinching hands and clothes are eliminated, and the deviation rectifying ability is stronger. Besides, the coating machine rolling mechanism is simple in structure, andis more convenient in mounting, dismounting, loading and unloading.

The invention is a data processing method for interference super spectrum imaging device. It extracts point interference diagram and generates black white quick view diagram; then carries on radiosity calibration, and filters and extracts the effect interference diagram, and it is restored into the target spectrum; after the phase error is eliminated; acquires spectrum density of each ground radiation; then synthesizes them into a single color diagram series; finally they are synthesized into a color image. The invention solves the problem that the calculation process is complex in the background technology, the correction range is limited. It can use Fourier transition directly; the calculation speed can be upgraded for several times.

The invention discloses a production method of large aperture aspheric mirrors, comprising the step of: (1) calculating a best fitting sphere according to aspheric degree gradient method, machining and completing an ultra-thin spherical mirror according to the best fitting sphere; (2) obtaining an actuator distribution initial scheme, according to the aspheric degree gradient change rate method, to obtain the final solution of the actuator distribution and the forced displacement quantity of each actuator after optimization; (3) machining and completing an actuator component; (4) arranging the completed ultra-thin sphere mirror on the actuator component, adjusting the displacement quantity of the actuator to approach the ultra-thin sphere mirror to the designed best fitting sphere radius and figure accuracy; (5) according to the forced displacement quantity of each actuator obtained in the step (2), adjusting the displacement actuator to deform the sphere mirror into the demanded aspheric figure to obtain the large aperture aspheric mirror. The invention avoids the difficulty in the processing and checking of large aperture aspheric mirrors, to reduce processing and checking difficulty, reduce production period and reduce production cost.

The invention provides a balance device used for a washing machine and a washing machine provided with the balance device used for the washing machine.The balance device used for the washing machine comprises a lower ring groove, an upper ring groove, a ring pipe and a plurality of balance balls.The upper ring groove is formed in the lower ring groove in a covering mode to define an annular balance cavity channel, the ring pipe is arranged in the upper ring groove, and the balance balls are movably arranged in the ring pipe.Balance liquid such as salt water is contained in the annular balance cavity channel, so that the balance device used for the washing machine has the functions of liquid balance and mechanical balance, the advantages of liquid balance and mechanical balance are integrated, the disadvantages of liquid balance and mechanical balance are made up, and the optimal integrated balance effect is achieved.

The invention discloses an intelligent deflection adjusting device applied to a circular-pipe-belt conveyor. Execution parts are arranged on two sides of a framework in a staggered mode and are connected to each other through connecting rods, and carrier rollers are installed on brackets of the execution parts; power parts are installed on the outer side of the framework, and push rods of electro-hydraulic push rods are connected to the brackets of the execution parts; cameras of an intelligent control part are installed on the framework; rotatable brackets are installed on a supporting bottomframe and are fixed by connecting pin shafts; the electro-hydraulic push rods are installed on the base; and the cameras are connected to a data transmission system, the data transmission system is connected to an image analysis system, and the data transmission system is connected to an electric control system. According to the device, the detection of the deflection of a tubular conveying beltis continuous and accurate, no special detection element is adopted, the reliability is high, the failure rate is low, the intelligent automatic control can be realized, no extra abrasion is generatedto the conveying belt during normal operation, the service life is long, the deflection of the tubular conveying belt is corrected, and the device can be applied to the technical field of bulk material conveying equipment.

The invention provides a low-frequency-band satellite-borne SAR (Synthetic Aperture Radar) ionospheric scintillation effect self-focusing method. The technical scheme is characterized in that an SAR image polluted by a scintillation effect is divided into a plurality of sub-block SAR images along a distance direction; the size of the sub-block SAR images adopts a principle of limiting distance space variability of the scintillation effect in an acceptable range. Aiming at each sub-block SAR image, an optimization method is used for carrying out iterative optimization of entropy function of thesub-block SAR image, and the sub-block SAR image is subjected to phase compensation for one time in each iteration process. The method can be adapted to SAR images in any size scene; the calculationefficiency of algorithm is ensured; meanwhile, the SAR image self-focusing algorithm with good performance can still be maintained under the medium-intensity scintillation condition.

The invention provides a projection lens system. The system comprises, sequentially arranged, a first refraction lens group, wherein the first refraction lens group comprises at least two coaxially arranged spherical lenses; an aperture stop; a second refractive lens group, wherein the second refractive lens group comprises at least one even aspheric lens; and an equivalent prism and a micro display chip. The position of at least one spherical lens in the first refraction lens group can be coaxially adjusted under the condition that the total length of the first refraction lens group is not changed. According to the projection lens system, the position can be coaxially adjusted under the condition that the total length of the first refraction lens group is not changed through one spherical lens in the first refraction lens group, so that defocusing caused by temperature or tolerance compensation during lens assembly can be compensated, and the projection lens system has the advantages of compact lens structure, high definition, small distortion, good tolerance implementation and the like.

The invention provides an electric connection structure of a switch device. The electric connection structure of the switch device is used for a drawout breaker. The electric connection structure comprises at least a fixed type terminal, at least a plug-in type terminal and at least a plug-in type chunk. The plug-in type terminal is inserted in the middle of the plug-in type chunk and is used for connecting with an external electric terminal in an electric mode, wherein the external electric terminal is connected to the fixed type terminal. The plug-in type terminal, the fixed type terminal and the plug-in chunk are in a multiple contact mode when in a working state. The electric connection structure of the switch device has the advantages that electric conduction ability is enhanced, deviation rectifying ability is good, reliable electric connection is guaranteed, product cost is reduced and market competitiveness is increased.

The invention discloses an image processing method for OCR image recognition. The method comprises the following steps: S1, carrying out the preprocessing of a to-be-recognized image, so as to outputimage data meeting a preset specification; S2, reprocessing the preprocessed image to determine the position of the image and perform character positioning on the image; and S3, performing character recognition and correction, and performing feedback type repeated recognition in the character recognition and correction process to obtain a final OCR recognition result. The method and the system aremainly used for identifying machine invoices, various forms and documents; the method is high in recognition precision, high in recognition speed and high in adaptability, the anti-interference capacity in the OCR is enhanced through image preprocessing correction and character positioning, the accuracy of the OCR can be improved through a feedback algorithm (namely a feedback model) based on thecomprehension degree, and the method has high correction capacity for partial information loss and recognition errors. Compared with the recognition effect of the traditional OCR recognition technology, the recognition accuracy is greatly improved.

The invention relates to a double-piezoelectric plate deformed reflecting mirror for correcting large amplitude defocus and astigmatic image error, which comprises a specular layer, two drive layers and a microscope base. The reflecting mirror is characterized in that the two drive layers are formed by combining two circular wafers, wherein, a discrete electrode on one surface of one of the drive layers is divided into eight fan-shaped areas and used for correcting the large amplitude defocus and the astigmatic image error, and another discrete electrode on one surface of another drive layer is divided into more than ten small areas and used for correcting other higher-order aberration. The double-piezoelectric plate deformed reflecting mirror has more outstanding capacity of correcting the defocus and the astigmatic image error, simultaneously ensures the correction accuracy of the higher-order aberration, and is suitable for being applied to adaptive optical correction systems taking target aberration as main defocus and astigmatism. Furthermore, the double-piezoelectric plate deformed reflecting mirror has the advantages of simple structure, low processing difficulty, easy implementation, and lower cost.

The invention relates to a computer Chinese character code input method. It utilizes keyboard of computer to implement single-character input and phrase input of Chinese characters. On every letter key of computer keyboard a code is set, said code is formed from keyboard region number and position number. Which are formed into the code with dibit figure. According to rule of order of strokes, rule of strove-form and rule of strokes, at the same time said invention uses position number of single-stroke character root as 1, utilizes first stroke of multistroke characte root to define keyboard region number, and utilizes secondary stroke to define position number, so that utilizes them to define keyboard resin number and position number of one Chinese character character-root. The combination of one Chinese character is formed from several character roots. The stroke-form rule can be used for defining position state between character roots of one Chinese charcter and their various 'crossing' and 'covering' relationships. Its duplication code rate is low, and is less than 7%, and its input speed is quick.

The invention discloses an optimized phase change memory architecture. Each PCM line consists of a data field and a check field, wherein the check field comprises a grouping information field and an ECC check code field; the data field is stored by adopting a single-layer PCM unit; and the data check field is stored by adopting a double-layer PCM unit. According to the optimized phase change memory architecture, a dynamic grouping manner is adopted, and the data field is dynamically divided into N groups according to the positions of vulnerable bits, so that the vulnerable bits are uniformly distributed in each group and each group at most comprises one vulnerable bit; and meanwhile, grouped ECC check is used, and the double-layer PCM unit is used for storing check bits, so that the length of the check field is increased, the PCM line data error correction ability is improved, more bit errors can be corrected, and the reading voltage can be improved and the reading delay can be decreased while the fault-tolerant ability is strengthened so as to greatly improve the reading speed of the PCM.