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158results about How to "improve consistency" patented technology

Automatic charging and discharging equilibrium device for battery pack

InactiveCN103647327Aimprove consistencyMaintain charge and discharge performance
Disclosed is an automatic charging and discharging equilibrium device for a battery pack. A battery switching circuit (1) is connected with a charging and discharging current sensing and signal acquiring circuit (2), a control circuit (5) is connected with the battery switching circuit (1), an equilibrium charging circuit (3) and an equilibrium discharging circuit (4) to control charging and discharging equilibrium parameters of the equilibrium charging circuit (3) and the equilibrium discharging circuit (4), the equilibrium charging circuit (3) and the equilibrium discharging circuit (4) are connected with a battery through the charging and discharging current sensing and signal acquiring circuit (2), the charging and discharging current sensing and signal acquiring circuit (2) is connected with the control circuit (5), and power switch devices of the equilibrium charging circuit (3) and the equilibrium discharging circuit (4) are serially connected with the battery. A voltage signal of a sampling resister (R1) of the charging and discharging current sensing and signal acquiring circuit (2) enters the control circuit (5) to analyze and calculate charging and discharging current, so that PID (proportion integration differentiation) closed-loop equilibrium charging or discharging is controlled.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Satellite transponder inherent time delay automatic testing device and method

ActiveCN106546962Aimprove consistencyReduce test error
The invention provides a satellite transponder inherent time delay automatic testing device and method. The testing device comprises an automatic testing computer, a time delay measurement terminal, an up frequency converter, a down frequency converter, a 2*4 radio frequency matrix, a testing frequency converter and a satellite transponder, wherein uplink intermediate frequency range finding signals are converted into uplink radio frequency range finding signals via frequency conversion through the up converter, the uplink radio frequency range finding signals are sent to the satellite transponder via the 2*4 radio frequency matrix, down link radio frequency range finding signals sent by the satellite transponder are sent to the down frequency converter via the 2*4 radio frequency matrix and are then converted into down link intermediate frequency range finding signals, the down link intermediate frequency range finding signals are sent to the time delay measurement terminal, time delay data of the satellite transponder is calculated via the time delay data measurement terminal and sent to an automatic testing computer, the satellite transponder is replaced with the testing frequency converter as a testing object, time delay data of a ground system is calculated via the time delay measurement terminal, and inherent time delay of the satellite transponder can be obtained via the automatic testing computer. Via the satellite transponder inherent time delay automatic testing device and method, automation testing is realized, testing data consistency is improved, and good universality is realized.
Owner:SHANGHAI SATELLITE ENG INST

Human body head three dimensional scanner and three-dimensional modeling method

InactiveCN104881864AHigh speed and small errorimprove consistency
The present invention relates to the human body scanning technology field, and provides a human body head three dimensional scanner and a three-dimensional modeling method. The human body head three dimensional scanner comprises a frame, a glass plate, a driving device, a support, cameras and lasers, the glass plate, the driving device and the support are arranged on the frame, and the glass plate is located above the driving device. The driving device comprises a servo driving motor, a slide rail, a leas screw and a limiting switch, the slide rail is arranged at the bottom of the frame, the limiting switch and the servo driving motor are arranged on the slide rail, and the servo driving motor is connected with the lead screw. The support comprises a crossbeam and two upright columns, the bottom of the crossbeam sleeves the lead screw via a bearing, and the upright columns are arranged at the two ends of the crossbeam. The three or more than three lasers are arranged on the two upright columns and the crossbeam, and the four or more than four cameras are arranged on the two upright columns and the crossbeam via rotating shafts and are connected with an external computer. The human body head three dimensional scanner and the three-dimensional modeling method of the present invention can measure the form and curve characteristics of a head, and have the advantages of being fast in measurement speed, small in error and little in workload, and being simple to install and accurate to measure.
Owner:精迪测量技术(上海)有限公司

Braking pressure correction method for braking system

The invention discloses a braking pressure correction method for a braking system. The braking pressure determined through a braking command signal Vs serves as the standard braking pressure. The braking pressure of airplane wheels is output to an anti-skid braking control box, the standard braking pressure is compared with the braking pressure output through an anti-skid braking system, and after comprehensive controlling is conducted, a braking command signal which is subjected to pressure correction is output. The command signal subjected to pressure correction controls an electro-hydraulic pressure servo valve to output the braking pressure, and braking pressure correction is achieved; accordingly, the difference value between the standard braking pressure and the actual braking pressure is decreased, and meanwhile the pressure difference value of the actual braking pressure of two side airplane wheels of an airplane is decreased. By means of the braking pressure correction method, the braking pressure of the left airplane wheel and the braking pressure of the right airplane wheel of the airplane are made to be consistent, and the braking pressure of the airplane anti-skid braking system and the control current output through the anti-skid braking control box are made to be consistent; the airplane is prevented from off-course and even runway excursion, and the safety of airplane braking is ensured.
Owner:XIAN AVIATION BRAKE TECH

Safe production-oriented three-dimensional model making, loading and displaying system and method

The invention provides a safe production-oriented three-dimensional model making, loading and displaying system. The system comprises a loading display module, an editing module, a service schedulingmodule, a storage module, a format conversion module and a coordinate conversion module, the loading display module comprises a two-dimensional model loading display module, a three-dimensional modelloading display module and a two-dimensional and three-dimensional model linkage module, and the two-dimensional model loading display module realizes loading display of two-dimensional vector data ina JSON format and an element map service format by using OpenLayers; the three-dimensional model loading and displaying module is used for realizing loading and displaying of three-dimensional modeldata by using the CesiumJS; and the two-dimensional and three-dimensional model linkage module realizes two-dimensional and three-dimensional model linkage display. On the basis of two-dimensional vector data manufacturing, three-dimensional attributes are added to manufacture the three-dimensional model, so that the complexity of manufacturing the three-dimensional model is greatly reduced. Through the linkage updating mechanism of the two-dimensional vector data and the three-dimensional model, the consistency of the two-dimensional data and the three-dimensional data is improved, and the two-dimensional and three-dimensional integrated application experience is improved.
Owner:苏州百卓网络技术有限公司 +1

Polarimetric SAR image classification method based on feature attention and feature improvement network

The invention provides a polarimetric SAR image classification method based on feature attention and a feature improvement network. The polarimetric SAR image classification method mainly solves the problems that an existing polarimetric SAR image classification method based on deep learning is poor in intra-area consistency and inconvenient for end-to-end classification. The implementation schemecomprises the following steps of: 1) inputting a to-be-classified polarized SAR image and filtering the to-be-classified polarized SAR image; 2) synthesizing a pseudo color image and a classificationlabel of the polarized SAR image; 3) extracting initial features of the polarimetric SAR image and preprocessing the features; 4) respectively constructing an input representation layer, a feature attention sub-network, an encoder and a decoder, and sequentially connecting the input representation layer, the feature attention sub-network, the encoder and the decoder to form a feature attention and feature improvement network; 5) training fa eature attention and feature improvement network; 6) Inputting the polarization SAR image into the trained network to obtain the classification result. The polarimetric SAR image classification method is high in intra-area consistency, low in noise and high in classification precision, end-to-end learning and classification are realized, and the polarimetric SAR image classification method can be used for polarimetric SAR image classification.
Owner:XIDIAN UNIV

Wax-free grinding and polishing template with double inlaying layers

The invention relates to a wax-free grinding and polishing template with double inlaying layers. The grinding and polishing template is characterized by being a composite structure formed by five cylindrical laminar objects. The composite structure comprises a first layer, a second layer, a third layer, a fourth layer and a fifth layer from top to bottom; the first layer is an upper inlaying layer which is provided with at least one sheet placing hole; the second layer is an upper bonding layer; the third layer is a substrate layer; the fourth layer is a lower bonding layer; and the fifth layer is a lower inlaying layer which is provided with at least one sheet placing hole; the wax-free grinding and polishing template with double inlaying layers is provided with a guiding hole for permeation of a polishing liquid; and the diameter of guiding hole is 0.1-50mm. According to the wax-free grinding and polishing template, by adoption of double inlaying layers, the wax-free polishing efficiency is improved. Because a wax-free polishing pad is separated from an adsorbing pad, the deviation of the thickness of a silicon wafer product is reduced effectively, and the production cost is lowered effectively; and the wax-free grinding and polishing template with double inlaying layers has the characteristics of simple structure and convenience of processing.
Owner:天津西美半导体材料有限公司 +1

Full-spectrum-band amplitude-preserving seismic data processing method and device

ActiveCN109254324Aimprove consistencyImprove resolution and fidelity
The application provides a full-spectrum-band amplitude-preserving seismic data processing method and device. The method includes steps: obtaining seismic data; performing wavelet standardized shapingon the seismic data, and performing full-spectrum-band frequency-broadening processing to release all seismic signals in a spectrum suppression band and obtain a first category of seismic data; performing whitening processing satisfying random noise hypothesis on interference signals in the first category of seismic data to obtain a second category of seismic data; performing data processing on the second category of seismic data to obtain a third category of seismic data, wherein the data processing maintains a full-spectrum-band characteristic and a noise whitening characteristic of the seismic data; performing pre-stack migration imaging processing on the third category of seismic data to obtain a fourth category of seismic data; and performing optimal resolution wavelet shaping on thefourth category of seismic data to obtain target seismic data. The seismic acquisition characteristics of wide frequency band, wide orientation and high density are considered, available effective signals in the seismic data are fully utilized, and effects of improving the wavelet consistence of the seismic data and improving the resolution and the fidelity of the seismic data are achieved.
Owner:PETROCHINA CO LTD

Edge and chamfer accurate grinding device of cylindrical glass optical lenses and method thereof

The invention belongs to an optical processing technology, and relates to an edge and chamfer accurate grinding device of cylindrical glass optical lenses and a method thereof. The method enables the cylindrical glass optical lenses and an accurate grinding disc to form a needed angle through a chamfer positioning tool. Under the effect of frictional force, the self rotation of the cylindrical glass optical lenses and the relative motion of the cylindrical glass optical lenses with respect to the accurate grinding disc are realized through the rotation of the accurate grinding disc and the oscillation of a swinging arm, so that the edge and chamfer accurate grinding effect of the cylindrical glass optical lenses is achieved. In order to improve the efficiency and the edge and chamfer consistency of the cylindrical glass optical lenses, a poking wheel structure is designed to accelerate the self rotation motion of the cylindrical glass optical lenses and to increase the contact force between the cylindrical glass optical lenses and a lens disc. The increment of the contact force can prominently improve the chamfer accurate grinding efficiency of the cylindrical glass optical lenses; and the smooth and uniform self rotation motion of the cylindrical glass optical lenses can guarantee the uniformity of edges and chamfers. The edge and chamfer accurate grinding device of the cylindrical glass optical lenses and the method thereof can realize the accurate grinding of the edges and the chamfers of the cylindrical glass optical lenses in large batches with automation.
Owner:FLIGHT AUTOMATIC CONTROL RES INST

Integrated display unit board of color LED (light emitting diode) display screen and manufacture method thereof

ActiveCN103198770Aimprove consistencyImprove light output
The invention relates to an integrated display unit of a color LED display screen and a manufacture method thereof. The integrated display unit board of the color LED display screen comprises an LED display module and a surface cover base plate, wherein the positions of the surface cover base plate, which correspond to LED wafers of the LED display module, are provided with light outlet holes; a drive IC (integrated circuit) is welded on a drive circuit board, the back surface of a circuit board is connected with the drive circuit board through pin headers and female headers, and the LED wafers are fixed on the front surface of the circuit board; the side wall of every light outlet hole of the surface cover base plate is provided with a high-reflectance diffuse-reflection surface; and the surface cover base plate is fixed on the circuit board, and the light outlet holes of the surface cover base plate are filled with transparent colloid. Due to the high-reflectance diffuse-reflection surfaces of the side walls of the light outlet holes of the surface cover base plate, light reaching the sidewalls of the light outlet holes can be subjected to the diffuse-reflection dodging to significantly improve the light emitting uniformity of LEDs which have three colors of red, green and blue, the light energy usage rate is increased, and the heat dissipation burden is reduced. The integrated display unit board of the color LED display screen has the advantages of large visual angle, low light loss and the like.
Owner:长春希龙显示技术有限公司
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