Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

100results about How to "Achieve smooth transition" patented technology

Area array type LED light source driving control method, device and equipment

The invention relates to the technical field of light source driving control, and discloses an area array type LED light source driving control method, device and equipment. The method comprises the following steps: constructing an upper-layer display control subsystem and a lower-layer drive control subsystem of the area array type LED display system, and collecting a multi-dimensional state data set; performing N-step prediction optimization calculation and brightness uniformity constraint calculation to obtain an optimal control sequence of the LED unit; carrying out extended state observer processing to obtain an LED unit compensation control quantity; compensation area construction and area brightness compensation analysis are carried out, and LED unit area compensation parameters are obtained; performing multi-stage PWM period division and modulation calculation to obtain an LED unit driving control signal; and performing consistency constraint calculation and gradient optimization calculation to obtain global display control parameters of the area array type LED display system, so that smooth transition between the sub-area control units is realized, and the overall display effect of the large-size display system is ensured.
Owner:SHENZHEN KINGUNION LIGHTING CO LTD

LED display screen dynamic splicing control method and system

The invention discloses an LED display screen dynamic splicing control method and system, and relates to the technical field of LED display screen dynamic splicing, and the method comprises the following steps: for each frame of image of a pixel splicing region, carrying out the overlapping of edge pixels of adjacent screens through employing an initial edge pixel overlapping ratio, so as to preliminarily eliminate visible splicing traces; after the primary processing, dividing the edge part of the pixel splicing area into a plurality of sub-areas; and for each sub-region, acquiring the pixel splicing condition of the sub-region. According to the method, the splicing condition is finely analyzed by using the initial edge pixel overlapping ratio and the deep learning model, smooth transition and non-smooth transition regions are intelligently divided, problem regions are intensively optimized, the overlapping ratio is dynamically adjusted through the adaptive edge fusion algorithm, the pixels are fused again, smooth transition of the image is ensured, and the image quality is improved. The problems of misalignment and color difference are solved, and the display effect and operation efficiency of dynamic content and a large-scale display system are improved.
Owner:SHENZHEN ENBON OPTOELECTRONIC CO LTD

Command processing method and device, baseboard management controller, program product and medium

The invention provides a command processing method and device, a baseboard management controller, a program product and a medium, and relates to the field of baseboard management controllers, the command processing method and device are applied to a first operating system in the baseboard management controller, the baseboard management controller further comprises a second operating system, and the response speed of the first operating system is higher than that of the second operating system. The method comprises the following steps: when a substrate management controller triggers a starting operation, executing a system initialization operation, and establishing an inter-core communication channel with a second operating system; the starting operation is used for triggering the first operating system and the second operating system to execute system initialization operation; receiving and responding to a server out-of-band management command when it is determined that self initialization is completed; judging whether the second operating system is initialized or not by utilizing the inter-core communication channel; when it is determined that initialization of the second operating system is completed, the receiving response right of the out-of-band management command of the server is transferred to the second operating system; and an out-of-band management command of the server can be quickly responded.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Virtual machine management method and device and storage medium

The embodiment of the invention provides a virtual machine management method and device and a storage medium. In the embodiment of the invention, a mode of hierarchical dormancy of the virtual machine is adopted, and when the virtual machine is dormant, the virtual machine is firstly switched to a shallow dormancy state. The shallow dormancy is lightweight dormancy, and the dormancy process does not need persistent storage and does not need to release bottom physical resources, so that the shallow dormancy process uses less resources and can support concurrent shallow dormancy of multiple virtual machines. Furthermore, the target virtual machine to be switched to the deep dormancy state can be determined from the virtual machines in the shallow dormancy state in the scheduling domain according to the dormancy load condition of the scheduling domain where the virtual machine to be dormant is located, the virtual machines are not blindly subjected to deep dormancy, the load of the virtual machine which is switched to the deep dormancy state from the shallow dormancy state can be prevented from exceeding the load of the scheduling domain, and the user experience is improved. And resource conflicts caused by concurrent dormancy of multiple virtual machines are relieved, and smooth transition of the virtual machines from the running state to the deep dormancy state can be realized.
Owner:HANGZHOU ALICLOUD FEITIAN INFORMATION TECH CO LTD

Application lossless release method and device, computer equipment and storage medium

The invention belongs to the field of process optimization and finance, and relates to an application lossless release method, which comprises the following steps of: obtaining application configuration information of a new version application, and deploying the application configuration information in gray environment resources to obtain a gray version application; service feature data obtained by analyzing the service request is matched with a preset traffic dyeing rule, and when the traffic type is gray traffic, the service request is routed to a gray version application; the method comprises the steps of obtaining a flow state of a service request to judge whether service flow is normal or not, verifying a gray-level version application when the flow is normal, switching flow from a production environment to a gray-level environment step by step after verification is passed, continuously monitoring a running state of the gray-level version application in a preset time period, releasing a new-level application to the production environment, and releasing gray-level environment resources. The invention further provides an application lossless release device, computer equipment and a storage medium. In addition, the invention also relates to a block chain technology, and the new version application can be stored in a block chain. Smooth transition between the new version and the old version is achieved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Edge computing enabled air-to-ground network service deployment and resource allocation method and system

The invention belongs to but is not limited to the technical field of wireless communication, and discloses an edge computing enabled air-ground network service deployment and resource allocation method and system, which is characterized in that application programs are strategically deployed and replaced on a UAV (Unmanned Aerial Vehicle), computing resources and power are reasonably allocated, and on the premise that the task execution efficiency and accuracy are ensured, the resource allocation efficiency is improved. The task execution success rate of the IoT equipment in the intelligent railway system is maximized; the mobile edge computing is introduced into the air-space-ground integrated network, the characteristics of flexible deployment and small transmission delay of the UAV in the air-based network are utilized, and the complexity and dynamism of a traffic system are effectively dealt with and the resource allocation and power control are optimized through collaborative optimization of task placement, cache replacement, a resource allocation strategy and the transmission power of IoT (Internet of Things) equipment. According to the method, a deep reinforcement learning framework is adopted, and an algorithm based on a multi-agent depth deterministic strategy gradient is provided to realize joint optimization of task placement, cache replacement, resource allocation and IoT equipment transmission power.
Owner:XIAN UNIV OF POSTS & TELECOMM

Multi-process mode intelligent switching method and system for vehicle-mounted sludge treatment

The invention provides a multi-process-mode intelligent switching method and system for vehicle-mounted sludge treatment, and the method comprises the steps: carrying out the time-space alignment and standardization of multi-dimensional sensing data such as sludge characteristics, environmental parameters and equipment states, carrying out the real-time reasoning of a process switching critical value through combining with a lightweight incremental regression model, generating a self-adaptive threshold value band with a confidence interval, and carrying out the real-time reasoning of the process switching critical value. Dynamic monitoring and mode switching pre-judgment of actual operation parameters are realized; in the switching process, a weighted fusion progressive transition control strategy is adopted, the transfer rate is adaptively adjusted according to real-time feedback, the operation stability is guaranteed, and the intelligence, reliability and switching smoothness of process switching of the vehicle-mounted sludge treatment system are remarkably improved.
Owner:GUANGZHOU CHENGYUAN ENVIRONMENTAL PROTECTION EQUIP ENG CO LTD

Automatic driving transverse motion control takeover method and system, electronic equipment and medium

The invention discloses an automatic driving transverse motion control takeover method and system, electronic equipment and a medium, and the method comprises the steps: obtaining the hand torque of a driver of a current vehicle, and judging whether the hand torque of the driver meets a takeover condition or not; when the driver hand torque does not meet the takeover condition, a torque hybrid gain coefficient is determined according to the driver hand torque, a target control torque is calculated according to the driver hand torque, the automatic driving control torque and the torque hybrid gain coefficient, and then transverse motion control is conducted on the current vehicle according to the target control torque; when the hand torque of the driver meets the take-over condition, transverse motion control is conducted on the current vehicle according to the hand torque of the driver. According to the method, the smoothness of automatic driving transverse motion control takeover is improved, the driving experience of a driver is also improved, and the method can be applied to the technical field of vehicle control.
Owner:CHINA FAW CO LTD

Fixed horizontal tail type fly-by-wire aircraft leveling control law design method

The invention provides a fixed horizontal tail type fly-by-wire aircraft leveling control law design method, which comprises the following steps of: when an aircraft meets a condition of entering a leveling control law, recording a flight control law integral channel instruction ELNMINT at a triggering moment; generating an elevator control command component ELFLAREFWD through a forward command shaping module based on the joystick displacement signal; the method comprises the following steps: introducing an integral channel instruction ELNMINT into a leveling control law, and obtaining a bias instruction component ELFLAREOFFSET under the leveling control law after the integral channel instruction ELNMINT passes through an instruction amplitude limiting module; subtracting the bias instruction ELFLAREOFFSET from the integral channel instruction ELNMINT to obtain an instruction initial value ELFLAREFADER0 which needs to be faded during instruction transition; after the instruction initial value ELFLAREFADER 0 passes through a desalting device module, a real-time control surface control instruction component ELFLAREFADER is formed; and an elevator control instruction ELCMD under the leveling control law is obtained. According to the method, the switching transient state can be reduced by introducing the flight control law integral channel instruction component into the leveling control law, and the method has remarkable advantages in the aspects of improving the flight safety, optimizing the flight quality, enhancing the system flexibility, improving the automation level and the like.
Owner:AVIC GENERAL HUANAN AIRCRAFT IND CO LTD

Unmanned driving control system

The invention, which relates to the technical field of unmanned driving, discloses an unmanned driving control system comprising the following components: an environment sensing layer, a positioning mapping layer, a path planning layer, a decision control layer and a bottom execution layer. According to the invention, the improved YOLOv7-tiny target detection algorithm and the DeepSort target tracking algorithm are adopted, and laser radar point cloud processing is combined, so that accurate identification and tracking of track markers such as cone buckets are realized, the real-time performance and accuracy of target detection are improved, the robustness of environmental perception is further enhanced through a data fusion technology, and the method has the advantages of being high in practicability and easy to popularize. Meanwhile, on the path planning and decision control level, a graph search tree and a B spline curve are used for optimizing the path, and a Stanley / MPC hybrid transverse control algorithm is combined, so that the racing car can still keep stable driving track and speed in high-speed driving and complex racing track environments, and the stability and accuracy of an unmanned driving system are remarkably improved.
Owner:HEFEI UNIV OF TECH

Preparation method of TRT blade surface laser cladding anti-corrosion and wear-resistant coating

The invention relates to the technical field of TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation, and discloses a TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation method which comprises the following steps: preparing a nickel-based alloy raw material, putting the nickel-based alloy raw material into a planetary ball mill to be subjected to ball milling treatment after being combined, and preparing a nickel-based alloy coating; the mixed powder is bonded on a steel base material base plate to form a TRT blade, the TRT blade is put into a drying oven to be dried, high-energy-density laser beams of laser cladding equipment are used for irradiating the powder coated on the surface of the TRT blade to enable the powder to be fused, then an anti-corrosion layer is formed, a metal ceramic gradient material is melted or softened, the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer, and the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer. Then the boron nitride coating and the anticorrosive layer are fused together through laser cladding equipment, a transition layer is formed, the boron nitride coating is prepared, the surface of the transition layer on the TRT blade is evenly coated with the boron nitride coating, the surface of the transition layer on the TRT blade is fused together through the laser cladding equipment, and a wear-resistant layer is formed; through the preparation method, the service life of the TRT blade is prolonged.
Owner:NANTONG XINGDONG BLADE TECH CO LTD

Road scene modeling method based on real road surface data

The invention relates to a road scene modeling method based on real road surface data, belongs to the technical field of road modeling, and solves the problems that existing road scene modeling is low in efficiency and cannot fit real road surface conditions. Comprising the steps of collecting continuous road scene data according to sampling frequency, and obtaining attributes of each sampling point; according to the attribute of each sampling point, selecting a segmentation point to segment the road scene data to obtain a plurality of scene primitives; performing geometric feature classification on each scene element according to the pavement type and the average attribute value of each scene element to obtain a plurality of geometric element sets; performing multi-dimensional feature clustering on each geometric primitive set according to the multi-dimensional attribute features of each scene primitive to obtain a plurality of subdivided primitive sets; and selecting a plurality of scene primitives from each subdivided scene primitive set according to received modeling demand information, and connecting the selected scene primitives to obtain a road scene model. And the road scene rapid modeling of highly restoring a real road surface is realized.
Owner:BEIJING INST OF TECH

Ku-band high-field-intensity electric field sensitivity test system, design method and device

The invention discloses a ku-band high-field-intensity electric field sensitivity test system, a design method and a device. The system comprises a transmitter for generating an excitation signal, a ku-band high-field-intensity electric field sensitivity test antenna and a field intensity probe for receiving quasi-plane waves, in the antenna structure, the field angle horn comprises four side surfaces; the reflective curved surface is obtained by rotating a curve and is supported by the field-angle horn, and a radiation aperture is formed between the side surface of the field-angle horn and the reflective curved surface; the first rectangular waveguide converts the excitation signal into an electromagnetic wave; the rectangular-rectangular waveguide converter transmits the electromagnetic wave to the second rectangular waveguide; the second rectangular waveguide transmits the electromagnetic wave to the field angle horn; the field angle horn radiates electromagnetic waves to the reflective curved surface in a directional radiation mode; the reflection type curved surface reflects electromagnetic waves into quasi-plane waves and radiates the quasi-plane waves to the free space towards the front of the radiation aperture. According to the invention, an electric field radiation sensitivity test can be carried out in a generated high-field-intensity external radio frequency electromagnetic environment.
Owner:CHINA ELECTRONICS STANDARDIZATION INST

Signal optimization method and system of liquid crystal display touch screen, medium and product

The invention discloses a signal optimization method and system of a liquid crystal display touch screen, a medium and a product, and relates to the technical field of optical modulation.The method comprises the steps that a real-time touch signal of the touch screen is obtained, and characteristic parameters of the touch signal are extracted; comparing the signal intensity and the signal fluctuation range with a preset characteristic range, and identifying a current touch mode as a glove touch mode or a direct touch mode; based on the current touch mode, determining a touch threshold value and a filter parameter of the touch screen; calculating a touch signal change rate of the touch signal characteristic parameter in continuous N sampling periods, and when the touch signal change rate exceeds a preset change threshold, updating the filter parameter to a filtering optimization parameter; performing filtering processing on the real-time touch signal based on the filtering optimization parameter to obtain a filtered touch signal; and determining a touch judgment result according to the filtered touch signal, the touch threshold and the signal duration. By implementing the application, the display touch screen can adapt to different touch media, and the accuracy of diagnosis operation is ensured.
Owner:ALTRON OPTOELECTRONICS (SHENZHEN) CO LTD

A daily hydrological series reconstruction method based on change detection and deviation correction

The present invention discloses a method for reconstructing daily hydrological series based on change detection and deviation correction, and the main steps are as follows: first, convert the daily hydrological series into a monthly series, detect the mutation point of the monthly series and its significance; second, test and analyze the trend before and after the mutation point to ensure that there is no significant trend; then, perform preliminary correction based on the cumulative distribution function to make the distribution characteristics of the monthly series before and after the mutation point consistent; then, distribute the cumulative correction total deviation of all mutation months to the daily hydrological series of non-mutation months in proportion; finally, reconstruct the daily hydrological series of non-mutation months and mutation months respectively, so as to obtain a complete daily hydrological series. The method can realize the restoration and reconstruction of the daily hydrological series, can effectively deal with the situation of multiple mutation points and ensure the smooth transition of data, and greatly improve the accuracy and adaptability of the reconstruction of the daily hydrological series.
Owner:JIANGXI ACAD OF WATER RESOURCES (JIANGXI PROVINCE DAM SAFETY MANAGEMENT CENT JIANGXI PROVINCE WATER RESOURCES MANAGEMENT CENT)

Charging and discharging integrated circuit and charging and discharging gun

The invention discloses a charging and discharging integrated circuit and a charging and discharging gun, and relates to the technical field of new energy automobile charging. Comprising a CC charging and discharging conversion unit, a relay and a control unit, the CC charging and discharging conversion unit is electrically connected with the control unit, the control unit is electrically connected with an isolation power supply and a discharging socket, and the isolation power supply is electrically connected with a power strip unit through the relay. Through the components such as the CC charging and discharging conversion unit, the isolation power supply, the relay and the control unit, the charging and discharging modes can be intelligently detected and switched, the current state can be judged according to the change of the resistance value, and the action of the relay is automatically controlled, so that the smooth conversion of the charging and discharging modes is realized.
Owner:FUDI ELECTRONIC TECH (JIANGSU) CO LTD

A liquid crystal display unit with zero visual seam

PendingCN122172481Areduce thicknessEliminate visual fragmentationNon-linear opticsLiquid-crystal displayVisual screening
The application discloses a kind of zero visual seam's liquid crystal display unit, it is related to display technical field.The display unit includes backlight module, liquid crystal panel assembly and optical compensation composite cover plate.Wherein, the edge of backlight module is equipped with the chamfer support surface that is inwards shrinkage, the non-display area of liquid crystal panel assembly is bent or adhered along the chamfer support surface, so that the physical height of non-display area is lower than the plane where effective display area is located.Optical compensation composite cover plate is adhered to the surface of liquid crystal panel assembly and extends to cover above non-display area, and the cover plate sequentially includes light remodeling layer, waveguide light uniform layer and wide-angle scattering layer from bottom to top.The application is cooperated by mechanical structure and micro-nano optics, realizes the visual screening of physical seam under the premise of not increasing electronic control complexity, solves the problems of large assembly thickness, black seam ghost and edge image distortion in traditional seam elimination scheme.
Owner:ZHEJIANG VISION ELECTRONIC TECH CO LTD

Intelligent optimization method and system for lake and Hunan brocade patterns fused with style migration

The invention provides a Hu Hunan brocade pattern intelligent optimization method and system fused with style migration, and relates to the technical field of image style migration, and the method comprises the steps: extracting common style information of a content image and a reference style image, and carrying out the guide alignment of the common style information, and obtaining a style guide feature for adjusting the pattern stylization; determining splicing control conditions of the pattern during feature splicing through the common style information and random noise features preset by pattern stylization, and generating target style information during style migration of the pattern according to the splicing control conditions and the style guide features, performing element filling on an image region missing during style migration according to the target style information to obtain a style migration image; and performing image reconstruction according to the detail features of the style migration image and the content image, and generating an optimized Hu-Hunan brocade pattern. According to the method, on the basis that the original pattern structure of the Hu Xiang brocade is completely reserved, adaptive migration of the full-format style of the pattern can be achieved.
Owner:HUNAN INST OF INFORMATION TECH

Dolphin-imitating cross-medium aircraft and working method thereof

The invention provides a dolphin-imitating cross-medium aircraft and a working method thereof.The aircraft comprises a dolphin-imitating fuselage, the two sides of the fuselage are each provided with a set of tiltable ducted rotor wings, a ducted tilting device and a steering engine are installed in the fuselage, the steering engine drives the ducted tilting device, the ducted tilting device is driven to drive a tilting shaft through a connecting rod, and the tiltable ducted rotor wings are connected with the connecting rod. A dorsal fin rudder is arranged on the fuselage; the rear side of the fuselage is sequentially connected with an aircraft middle section and an aircraft tail, and a tail driving device is installed in the fuselage and controls the aircraft middle section and the aircraft tail to swing. Tilting of the duct under different working conditions is achieved through the steering engine, the duct tilting device and the connecting rod, the tail swing device is driven through the micro alternating current motor and the servo motor, same-frequency swing of the middle section and the tail of the aircraft is achieved, thrust is provided for the aircraft underwater, underwater resistance and noise of the aircraft are greatly reduced, and the endurance time is prolonged.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Multi-posture adjusting vibration disc

The invention relates to the technical field of vibration discs, in particular to a multi-posture adjusting vibration disc. The device comprises a top tray, a material containing cavity used for containing parts is formed in the top tray, a spiral feeding channel is arranged in the material containing cavity, and a limiting turnover device, a first step type turnover device, a second step type turnover device, a trough conveying device, a vertical turnover device, a horizontal and vertical screening device and a spiral turnover feeding trough are sequentially arranged on the feeding channel. All the devices work cooperatively, precise conversion and adjustment of the parts among different postures can be achieved, the conveying efficiency and precision of the parts are improved, and the defective product rate is reduced. In addition, a first posture guide groove and a second posture guide groove are formed in the feeding channel, and the posture stability of the parts is further improved. The effects of improving the production efficiency and reducing the production cost are achieved.
Owner:DONGGUAN YONGWEISHUN INTELLIGENT TECH CO LTD

A method, system, and storage medium for interpolating and connecting S-shaped velocity curves.

ActiveCN121900314BAchieve accurate interpolation compensationEliminate speed fluctuationsNumerical controlTime domainClassical mechanics
This invention relates to the field of CNC machining and motion control technology, specifically to a method, system, and storage medium for interpolation connection processing of S-shaped speed curves. This method addresses the speed fluctuations and uneven machining marks caused by the asynchronous connection points between segments and the interpolation cycle in existing global S-shaped speed planning by proposing a reverse extension compensation mechanism. The steps include: when entering a new curve segment for interpolation, if there is residual motion and the motion stage is continuous, the current motion stage is extended backward by one interpolation cycle in the time domain; by solving the displacement equation, the historical time point corresponding to the residual motion in the current stage is accurately calculated; and the system's time state is corrected accordingly, thereby achieving smooth and accurate connection between segments. This invention effectively eliminates the deviation between interpolation commands and speed planning, solves the speed fluctuation problem caused by toolpath deflection, makes the tool marks more uniform, and improves machining quality.
Owner:SUZHOU MOU XUN INTELLIGENT TECH CO LTD

A thermostat device capable of performing continuous temperature control in a wide temperature range

ActiveCN113778149BRealize regulationachieve redistributionTemperatue control
The present invention discloses a thermostat device capable of performing continuous temperature control over a wide temperature range, the device comprising a low temperature refrigeration system, a sample chamber assembly, a heat insulation assembly and a sample temperature control system, wherein a sample rod body (43) in the sample chamber assembly is provided with a sample temperature sensor (54) and a sample heater (55) respectively connected to a temperature controller (57) in the sample temperature control system, the temperature controller (57) is connected to a host computer (56) via a line, and the host computer (56) performs PID closed-loop control on the sample temperature sensor (54) and the sample heater (55) via the temperature controller (57); a static helium pressure sensor (64) connected to the host computer (56) is provided on a static helium pipeline connected to a static helium interface (47) in the sample chamber assembly. The device of the present invention can perform continuous temperature control over a wide temperature range of 2-800K, meeting the needs of today's high-end physical property measurement field.
Owner:CSIC PRIDE (NANJING) CRYOGENIC TECHNOLOGY CO LTD

Constant force polishing dynamic parameter self-tuning method

PendingCN122584080AReduce force overshootreduce oscillation
The present application relates to the technical field of intelligent control of industrial robots, in particular to a constant force polishing dynamic parameter self-tuning method. The method comprises the following steps: 1) when the robot moves along a predetermined trajectory, real-time acquisition of multi-modal sensing data and extraction of data features; 2) taking the extracted multi-modal feature vector as input, predicting the bottom robot force controller parameters through a pre-trained deep learning model; 3) the robot force controller uses the new parameters and contact force feedback signals, generates joint torque instructions through impedance control algorithm, and drives the industrial robot to perform polishing work. Through visual foresight, the system can predict the working condition change in advance and adjust the parameters in advance, greatly reducing the force overshoot and oscillation, and realizing smooth transition.
Owner:SHANDONG XINSONG IND SOFTWARE RES INST CO LTD

A data center multi-cold source conversion device and control method

The present invention provides a multi-cold source conversion device for a data center, which is provided with a refrigerator, a cooling tower and a plate heat exchanger. When the refrigerator provides cooling, the evaporator, the chilled water supply pipe, the load device, the chilled water return pipe, and the first water pump form a circulating refrigeration loop, and the refrigerator provides cooling and cooling for the load device. When the refrigerator and the plate heat exchanger jointly provide cooling, the evaporator, the chilled water supply pipe, the load device, the chilled water return pipe, the first water pump, and the plate heat exchanger form a circulating loop, and the plate heat exchanger and the refrigerator simultaneously provide cooling and cooling for the load device. When the plate heat exchanger provides cooling, the plate heat exchanger, the chilled water return pipe, the chilled water supply pipe, the load device, and the first water pump form a circulating loop, and the plate heat exchanger provides cooling and cooling for the load device. The entire device is also provided with a third water pump and a converging three-way valve, which ensure the effective operation of the refrigerator, so that the refrigerator and the plate heat exchanger jointly provide cooling, and the plate heat exchanger provides cooling for free to achieve a smooth transition.
Owner:SHANDONG TONGXIANG INTELLIGENT TECH CO LTD

Image processing method and device based on multiple cameras, and computer-readable storage medium

ActiveCN114339042BGood zoom effectAchieve smooth switchingTelephoto lensLong-focus lens
An image processing method and device based on multiple cameras, and a computer-readable storage medium, wherein the multiple cameras include a wide-angle camera and a telephoto camera, and the method includes: when focusing is completed, determining the requested zoom ratio and obtaining the current image to be shot; when the requested zoom ratio is in the wide-angle section, obtaining an initial transformation matrix, wherein the initial transformation matrix is ​​used to represent the mapping relationship between the initial wide-angle image and the initial telephoto image, wherein the initial wide-angle image is an image shot by the wide-angle lens at a calibrated distance, and the initial telephoto image is an image shot by the telephoto lens at a calibrated distance; determining the current shooting distance; adjusting the initial transformation matrix according to the current shooting distance and the requested zoom ratio to obtain the current transformation matrix, and processing the image to be shot according to the current transformation matrix. There is no obvious visual jump at the zoom switching point of different cameras, thereby improving the user experience.
Owner:SPREADTRUM COMMUNICATION (SHANGHAI) CO LTD

Positioning device for oblique crossing operation of reinforcing steel bars and mounting method of positioning device

The invention belongs to the technical field of building construction, and particularly relates to a positioning device for steel bar oblique crossing operation and an installation method thereof.The positioning device comprises a first positioning ring, a positioning clamp, a supporting buckle and a second positioning ring, the first positioning ring and the second positioning ring each comprise an inner ring and an outer ring which are concentrically arranged, and the inner rings are fixedly connected with the outer rings through profile steel; the inner ring and the outer ring are provided with mounting grooves matched with the positioning clamps, the positioning clamps are movably arranged in the mounting grooves, the second positioning ring is detachably connected with the first positioning ring through the supporting buckles, and the angle correction and positioning device has the beneficial effect that angle correction and positioning of reinforcing steel bars in steel-concrete composite structure construction are achieved.
Owner:THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV +1

Hydroelectric generating set source network coordination control parameter dynamic optimization method and system fusing historical context and improved multi-target whale algorithm, electronic equipment and readable storage medium thereof

PendingCN122092354ASolve the problem of "optimal but not up to standard in actual assessment"Improve engineering practicabilityForecastingSingle network parallel feeding arrangementsNew energyOptimal control
The invention belongs to the technical field of source network coordination control, and particularly relates to a hydroelectric generating set source network coordination control parameter dynamic optimization method fusing historical context and an improved multi-target whale algorithm, a related system, equipment and a storage medium. Aiming at the problems of poor adaptability of control parameters, conflict of multi-target optimization, lack of historical working condition reference and the like in the process that a hydroelectric generating set participates in primary frequency modulation of a power grid and AGC (Automatic Gain Control), the method comprises the following steps: acquiring and preprocessing multi-source heterogeneous data, mining context information of historical working conditions to generate initial optimization parameters, and extracting real-time working condition characteristics and constraint conditions; and constructing a multi-objective optimization model fusing assessment of two detailed rules and unit performance, solving optimal control parameters by adopting an improved multi-objective whale algorithm, executing the optimal control parameters, and dynamically adjusting the parameters in combination with an online rolling optimization mechanism. According to the method, the source-network coordination response speed, the control precision and the operation economy of the hydroelectric generating set are effectively improved, the power grid assessment risk is reduced, and the method is adaptive to a novel power system under high-proportion new energy permeation.
Owner:CHINA YANGTZE POWER