113results about How to "Cost reduction needs" patented technology

The invention provides an aromatic polyamide composite membrane in order to overcome the problem that a subsequent production process and production efficiency are affected due to overlarge fiber gaps of the aromatic polyamide composite membrane, and due to a technical scheme that metal salt is added in the preparation of the composite membrane in the prior art; the inventor provides the aromatic polyamide composite membrane used for a lithium ion battery through in-depth study on aromatic polyamide. According to the proposed technical scheme, the aromatic polyamide composite membrane is characterized by comprising a porous base membrane and an aromatic polyamide composite coating layer; the aromatic polyamide composite coating layer is characterized in that the coating layer is obtained by coating one or two surfaces of the porous base membrane with coating liquid containing aromatic polyamide, electrolyte lithium salt insensitive to water, a gel polymer and inorganic nanoparticles. The safety performance of the lithium ion battery is improved; and the membrane has good high-temperature-resistant thermal contraction performance, so that the safety performance of the lithium ion battery in the use process is improved consequently.

The invention provides a detection method for surface shapes of multiple surfaces of a transmission component and relates to the technical field of measurement. The detection method comprises the steps of: on the premise of measuring a wave aberration of a to-be-detected component by use of a reverse hartmann light path detection device, adding multiple groups of different surface shape errors tothe surface shape of each surface of the to-be-detected component in a light ray tracing model by use of a modeled detection system established by a computer to obtain the corresponding wave aberration; solving a minimum difference value between the wave aberration and an actually measured wave aberration in the modeled detection system; and finally obtaining an actual surface shape error of the to-be-detected transmission component. With the detection method for the surface shapes of multiple surfaces of the transmission component, the technical problems in the prior art that detection for multiple surfaces of the transmission component does not possess high precision and universality. The invention has the beneficial effect that the detection method with high precision and large dynamicrange is provided for detection of the surface shapes of multiple surfaces of the transmission component.

The invention discloses a production method for a non-annealed medium carbon cold heading steel hot-rolled wire rod. The production method includes steps that (1) smelting molten steel, and continuously casting to form a billet; (2) slowly cooling the billet to release stress; (3) heating the slowly cooled hot-rolled billet to 1150 to 1190 degrees centigrade, preserving the heat for 110 to 140 minutes, and dephosphorizing through high pressure water; (4) carrying out rough intermediate rolling, pre-precision rolling and finish rolling on the dephosphorized hot-rolled billet, wherein the finish rolling temperature is 965 to 995 degrees centigrade, the coiling temperature is controlled at 960 to 980 degrees centigrade after finishing finish rolling, and the dimensional precision is performed with negative common difference; (5) feeding a hot-rolled steel wire rod to a cooling line, closing a fan and a heat holding cover, and keeping the steel wire rod in the heat holding cover for at least 40 minutes to obtain the hot-rolled wire rod. The production method for the non-annealed medium carbon cold heading steel hot-rolled wire rod enables the drawing amount to be reduced, avoids the hardness increase due to large drawing amount, meets the non-annealing production demand of the downstream user, enables the cost to be reduced, avoids the environment pollution due to annealing, and is featured with energy saving, environment friendliness and low cost.

The invention discloses an acceleration method and system of a wide-band access server. A multi-core central processor is arranged in the system. And the system specifically comprises a virtual local area network processing module for deleting or adding virtual local area network information of a message; a message classification module for classifying the message; a message processing module for processing the message according to the message type and obtaining a response message, and then returning the response message to the virtual local area network processing module; the tasks of the virtual local area network processing module, the message classification module, and the message processing module are respectively bound on different CPU cores so as to perform parallel processing. The invention provides a method for accelerating data forwarding and processing speed of a wide-band remote access server in a PPPoE/IPoE wide-band access network; wide-band remote access server equipment can be customized, the price is low, the forwarding efficiency performance is high, the community and like networks are facilitated, and the demands of small and medium size wide-band operators are satisfied.

The invention discloses a novel method for carrying out real-time fault monitoring on a penicillin fermentation process. The method comprises two stages of off-line modeling and on-line monitoring. The off-line modeling comprises the following steps: firstly, processing three-dimensional data of a fermentation process; then respectively calculating a Laplacian matrix of the data of each fermentation batch to represent local structure information of the data in each batch; and finally, carrying out modeling by using a noise reduction Laplace automatic encoder (DLAE) to construct monitoring statistics, and determining a control limit by using a kernel density estimation method. The on-line monitoring comprises the following steps: processing newly collected data according to a model, calculating the statistical magnitude of the data, comparing the statistical magnitude with a control limit, and judging whether the fermentation process runs normally or not. According to the method, the local structure of data in batches can be effectively utilized, and meanwhile, the training cost and the hardware requirement of the Laplace automatic encoder are reduced. Meanwhile, the robustness of the model is enhanced by adopting a noise reduction training mode, and the fault monitoring accuracy is relatively high.

The invention discloses an unmanned aerial vehicle group target detection method, electronic equipment and a storage medium. The method comprises the steps of obtaining an echo signal of an inter-pulse quadrature phase code of a to-be-detected target; performing pulse compression, digital beam forming and slow time dimension fast Fourier transform on the echo signal to obtain Doppler angle data; and judging a to-be-detected target according to the Doppler angle data, and when the to-be-detected target is a group target, performing group target parameter and number estimation to obtain the target number and target parameters of the to-be-detected target. The method can be applied to actual engineering, and the purpose of meeting the low-cost requirement of the MIMO radar almost without increasing hardware complexity is achieved.

The invention provides a calibration method of standard cylinder curved surface point measurement equipment, which includes: based on pose tracking and distance measurement, measuring a point on the upper surface of a cylinder under the condition that the pose of a reference ball and distance sensor assembly is not changed, and performing point measurement by moving a large angle along the side surface of the cylinder; enabling the measuring points to respectively fit a plane and a circumference, and calculating an optical axis direction U of the distance sensor under a reference spherical coordinate system TaCS and a coordinate Q of a coordinate system TCS original point of the distance sensor in the coordinate system TaCS, so that a subsequent calibration calculation process is simpler;the problem that the relative position relation between the distance sensor and the calibration reference ball is accurately obtained when manufacturing and assembling errors exist is solved. According to the invention, the standard cylinder with low price is adopted to acquire the position of the positioning device and the distance of the distance sensor, thereby saving the calibration cost; theassembly size relation of the two sensors is accurately calculated, the universality is enough, and the factory machining efficiency is improved.

The invention discloses a universal detection method for a reflecting sphere based on computer aided correction. A reverse Hartmann test optical path structure is adopted, the structure and position parameters of a measurement system are optimized by using a computer aided technology, and therefore, the influence of the structure and position parameter error of the system on the surface shape detection result is reduced. The structure and position parameters of a measurement system are pre-calibrated by using traditional three-dimensional coordinate measurement equipment. Then, the local slopeof a reflecting sphere to be detected is measured, and surface shape error data is obtained through an integral method. On the basis, the structure and position parameters of the system are further optimized by using a computer aided technology and a numerical iterative optimization algorithm, and the structure and position parameter calibration error of the measurement system is corrected, and thus, universal reflecting sphere measurement is realized. The invention provides a universal feasible method for the high-precision measurement of a reflecting sphere, and the method has extremely important practical application value.

A structure comprises a liquid crystal display body, a base including the first frame for placing and containing display body, a cover including the second frame integrated with the first one for covering on the base, multiple fixing hole surrounding periphery of the second frame, multiple concave opening at bottom edge of the second frame, multiple projection component fixed on the first frame periphery corresponding to position of multiple fixing hole and checked together with these holes and multiple positioning block component fixed at bottom edge of the first frame corresponding to position of multiple concave opening for protecting display body from damage by over pressing down of the second frame.

The embodiment of the invention provides a direct-current (DC) contactor and a vehicle. The direct-current contactor comprises a shell and two groups of contact assemblies arranged in the shell, eachcontact assembly comprises two moving contacts and two static contacts, wherein the two moving contacts are connected. The DC contactor also comprises a driving system used for driving the moving contacts to move towards or away from the static contacts so as to realize on-off of the moving contacts and the static contacts, wherein the shell is internally provided with an arc extinguishing cavity;the arc extinguishing cavity is divided into a first arc extinguishing chamber and a second arc extinguishing chamber by a first blocking piece in the arc extinguishing cavity; the contact assembliesare respectively positioned in the first arc extinguishing chamber and the second arc extinguishing chamber; two groups of contact assemblies are integrated into two arc extinguishing chambers of onearc extinguishing cavity, the on-off driving is carried out in a single driving system mode, the structure of the direct-current contactor is simplified, the on-off requirements of positive and negative pole circuits can be met by using one direct current contactor, a contactor does not need to be installed on each of the positive and negative poles, the size of a charging device is reduced, andthe manufacturing cost is reduced.

The invention discloses an anti-cheating test paper distribution device for a smart campus, and relates to the technical field of smart campuses. The device comprises a test paper distribution deviceand an answer sheet distribution device. The test paper distribution device comprises a printer A, a computer and an identity authentication mechanism; the computer is connected with the identity authentication mechanism and the printer; the identity authentication mechanism comprises an image acquisition module and an admission ticket identification module; the answer sheet distribution device comprises a printer B. The printer B is connected with the computer. According to the invention, test questions with different question sequences can be issued according to the information of students,and cheating can be better prevented; meanwhile, automatic intelligent issuing is conducted through the test paper issuing device and the answer sheet issuing device, the labor intensity of test paperissuing is reduced, unmanned management of an examination room can be achieved in cooperation with the unmanned invigilation device, and the manpower management cost and manpower requirements of examinations are reduced.

The invention discloses a device for realizing operation of a mobile tower crane on a structural floor and a construction method. The device comprises transfer beams, track beams and guide tracks. A plurality of parallel transfer beams are arranged on floor structure columns. Two parallel track beams which are used for installing the guide tracks are perpendicularly laid between the transverse beams. The construction method of the device for realizing operation of the mobile tower crane on the structural floor mainly comprises the following steps of: 1, setting the positions of the transfer beams and the track beams according to building floor structure layout; 2, calculating specifications of the transfer beams and the track beams according to wheel pressure, wind load and braking force of the used mobile tower crane; 3, installing embedded parts on the floor structure columns at the positions where the transfer beams are required to be fixed; 4, installing the transfer beams and the track beams; and 5, laying the guide tracks. The device for realizing operation of the mobile tower crane on the structural floor and the construction method have the advantages that the structure construction difficulty caused by large single-layer building area is overcome, the investment on mechanical equipment during construction is reduced, the construction period is shortened, the construction cost is saved and the construction efficiency is improved.

The invention discloses a nanometer paster preparing method, which comprises the following steps: a) preparing one base plate and one die in the vacuum environment, wherein at least one of the base plate and die is clarity; the die is on base plate, which has one pressing surface; the pressing surface is installed nanometer emboss; the nanometer emboss installs release agent; b) the base plate is covered with liquid coining inlay which can be irradiated by ultraviolet light and then cure; c) the pressing surface of die presses base plate; the coining inlay is filled between nanometer emboss and base plate; d) ultraviolet irradiation makes ultraviolet transmit die or base plate to be clarity; irradiating the pressing inlay makes the pressing inlay cure; e) demoulding, the die is moved away the base plate; the pressing inlay forms line in respect of nanometer emboss; the pressing inlay is the nanometer paster.

The invention provides a mass small file storage performance optimization method and device based on real-time merging, and relates to the field of computer storage. The mass small file storage performance optimization method based on real-time merging comprises the steps that a file data storage request sent by a client is received, and files to be stored are written into SSD and HDD storage resource pools in a layered mode in an object storage mode; wherein when the to-be-stored file is a large file, the to-be-stored file is stored in the HDD storage resource pool, and when the to-be-storedfile is a small file, the to-be-stored file is stored in the SSD storage resource pool, and metadata information of the file is stored in a file index pool; and generating a globally unique identifierkey of the file according to the metadata information. According to the method, the writing speed of the small files can be increased, and the massive small files can be reasonably stored.

The invention relates to a simply-realized crystal-oscillation-free circuit of a USB (Universal Serial Bus) 1.1 device interface. The simply-realized crystal-oscillation-free circuit comprises a high-frequency oscillator, a sampling clock frequency divider, a USB1.1 data receiver, a USB1.1 data state machine, a USB1.1 built-in clock judgment device and a Delta-Sigma frequency divider, wherein the high-frequency oscillator is used for providing a high-frequency clock, the USB1.1 data receiver is used for receiving effective information sent by a host, the USB1.1 data state machine is used for analyzing characteristic information, then a USB1.1 built-in clock judgment device takes the time span or the time interval of the characteristic information as a reference clock, and dynamically adjusts the frequency demultiplication number of the Delta-Sigma frequency divider through calculation, and finally, a high-precision built-in system clock is produced. When obtaining high performance, the simply-realized crystal-oscillation-free circuit realizes the crystal-oscillation-free technology of the USB 1.1 device interface, and meets the requirement on the low cost of the design of the USB1.1 interface to the maximum extent.

The invention provides a *-character searching method of a wafer fragment edge, which is used for searching a cracked edge of a wafer. The wafer is provided with a plurality of vertically-crossed first laser cutting lines and second laser cutting lines; and the first laser cutting lines and the second laser cutting lines are used for separating a plurality of crystal grains on the wafer. The *-character searching method comprises the following steps A-F of: step A, selecting a searching direction; step B, selecting one of the plurality of the crystal grains; step C, capturing a single crystal grain image; step D, judging whether the image of the crystal grain is an integral crystal grain or not; step E, if the image of the crystal grain is the integral crystal grain, moving along the searching direction and repeating the step C; and step F, if the image of the crystal grain is not the integral crystal grain, finishing and marking the position. According to the invention, the integral crystal grain at the outermost edge of the wafer can be accurately marked and times of moving along the searching direction can be automatically calculated, so that cutting times needing to be cut can be known by a user in advance and the cracking work is convenient to carry out.

The invention discloses an elastomer film with a multistage microstructure, a preparation method of the elastomer film and a flexible pressure sensor comprising the elastomer film, a process of combining a template method and electrostatic spinning is adopted, and the single side of the prepared elastomer film is provided with the multistage microstructure composed of randomly distributed fiber networks, and the requirement of low cost is met while stable and rapid preparation is realized. In addition, the electrostatic spinning technology is widely applied in industrial practice, and therefore the preparation method has the application prospect of large-scale industrial production. The prepared flexible pressure sensor is high in sensitivity (larger than 63.93 kPa <-1 >) and large in sensing range (larger than 160 kPa), not only has strong response to tiny vibration such as human pulse and vocal cord sounding, but also has stable response to large limb movement such as joint movement, shows good response in real-time monitoring of pressure, and is huge in application potential.

The invention discloses a load simulation method based on a typical load and a linear combination thereof. The load characteristics in a working condition are divided into a constant torque load, a constant power load, a square law torque load, a linear law torque load and a first-order differential load; a typical load and a linear combination thereof are used for representing the construction of a twin-trawling experiment platform for a given load torque; the driving motor controller inputs a set reference rotating speed, the torque sensor measures the driving torque, the motor rotating speed of the driving motor is measured, and two parameters are fed back to the driving motor controller; and through theoretical analysis, load coefficients KcT, Kcp, Ksq, K1 and Ka of typical loads in to-be-simulated loads are obtained, the load coefficients KcT, Kcp, Ksq, K1 and Ka are substituted into the formula to obtain Tref, the Tref is input into a load motor controller, the load motor controller controls a load motor, and simulation of applying complex load torque to a driving motor end is achieved. The purpose of simulating the working condition by simply adjusting the coefficient is achieved, the working condition simulation cost is effectively reduced, and the development period is shortened.

The invention relates to a communication method for photovoltaic, wind power and other kinds of new energy power stations to control a large number of power generation units to conduct fast power control so as to meet the system primary frequency control similar rapid response requirement. The method is quickly issued to each power generation unit through Ethernet-based multicasts or broadcasts, the power generation units receive without communication confirmation and execution, and then power rapidly comes back; a plant-station fast power control device obtains the adjustment effect by acquiring and calculating plant-station grid supply points so as to form closed-loop control; the plant-station fast power control device achieves the requirement of regular non-real-time information of the several power generation units through communication of each power generation unit TCP. The method aims to solve the problem that current novel energy, particularly photovoltaic power station power regulation communication slowness, causes slow response of a power grid so as to improve the control and adjustment level of a new-energy plant station.

The invention discloses a video signal transmission control method and a video signal transmission system.The video signal transmission control method comprises the steps that the row pixel number value of original image data is obtained, and a first cache space is distributed according to the row pixel number value; reading the original image data line by line, obtaining and caching original line image data to the first cache space, and scaling up the original line image data according to pixel coordinates to obtain shrunk release image data; and recombining the shrunk release image data according to a rear-end screen splitting demand to generate intermediate image data, performing post-processing on the intermediate image data, and generating and outputting final image data. According to the video signal transmission control method provided by the invention, delay caused by intervention of an upper computer and relatively high storage pressure and processing pressure can be avoided, and cache occupation and cost requirements are reduced on the premise of meeting rear-end split screen requirements.