29results about How to "Avoid cycle" patented technology

The invention relates to the technical field of belt state detection, and particularly discloses a belt state detection method based on AI detection identification, and the method comprises the steps: belt deviation detection, deviation reason confirmation and feedback, belt wear detection, wear degree confirmation and feedback, and belt tear detection early warning. Whether the target belt deviates or not is judged according to the running video of the target belt, if the target belt deviates, the deviation reason of the target belt is determined, the abrasion degree of each area of the target belt is determined by constructing the three-dimensional information model of each area, meanwhile, tearing severity early warning is conducted by analyzing the tearing severity coefficient of the target belt, and therefore the tearing severity of the target belt is improved. The method improves the troubleshooting efficiency of belt deviation reasons, improves the accuracy of belt wear degree judgment, accurately evaluates the expansion direction and speed of cracks, provides effective data support for tear prevention and control, and helps to find potential tear risks in time, thereby reducing the possibility of belt tear accidents.

The invention discloses a process for processing a diamond blind groove by water-guided laser, which not only can optimize a laser incident angle, reduce a scattering effect and improve the smoothness of a groove wall through multi-angle compensation, but also can avoid periodic lines and defects caused by single-direction processing. The laser focus is always matched with the material surface through dynamic angle adjustment, the energy attenuation problem caused by depth increase is effectively relieved, and uniform machining of the bottom of the deep groove is ensured. And a complex multi-taper or gradual change structure can be realized, and the machining flexibility is obviously improved. Meanwhile, heat distribution is improved through multi-angle machining, the influence of heat accumulation on material performance is reduced, a water flow guide field is optimized, machining stability is enhanced, the limitation of the depth-diameter ratio is broken through, and the removal rate and machining precision are improved.

The invention provides a reservation in-store maintenance control method and device, electronic equipment and a storage medium, and relates to the technical field of vehicle reservation maintenance. The method comprises the following steps: acquiring fault information sent by a user terminal; the fault information is generated by the user terminal after all fault assemblies are determined; a retrieval instruction is sent to all maintenance shops according to the fault information, so that all the maintenance shops make feedback to the server after determining inventory conditions of all the standby assemblies; taking the first type of maintenance shop and the second type of maintenance shop as optional maintenance shops; and arranging the selectable maintenance shops into a push list and sending the push list to the user terminal for the user to select and reserve. The problems that the maintenance period is prolonged and time is wasted due to the fact that a replaceable standby assembly is lacked in vehicle in-store maintenance are solved, and the experience of a user in the aspect of maintenance service can be improved.

The invention relates to a PPU module verification system and method based on a UVM verification platform, by establishing a module-level verification system, parallel access of a plurality of hosts to a PPU module can be simulated through random configuration, and various possible scenes are traversed, so that the verification efficiency is improved, and the verification integrity is ensured. Module-level simulation verification can be immediately carried out after development of the PPU module is completed, through parameterization processing on APB and AHB interfaces, the number change of cores can be flexibly coped, verification cases can be dynamically adjusted, a verification system does not need to be redesigned, and the reusability of the verification system is greatly improved. By directly generating a data packet of an effective protocol instead of initiating access depending on a system configuration core, comprehensive verification of storage spaces of all the PPU modules is ensured. Therefore, through technologies of module-level simulation, interface parameterization, automatic expected generation and the like, the verification capability of the PPU module is greatly improved.

The invention discloses a flange cylinder piece pre-forging and finish-forging integrated die and a forming method, and belongs to the technical field of die forging forming. The die comprises a press rod, a side male die, an upper die body, a lower die body, a lower die core and a push rod; the side male die and the lower die are respectively positioned on the upper and lower surfaces of the upper die; the top of the side male die is provided with a first through hole, and the bottom is provided with a second through hole. The press rod can vertically pass through the first through hole and the second through hole; the push rod is slidably connected to the end face, away from the upper mold, of the lower mold and connected with the lower mold core so that the lower mold core can move in a lower mold cavity of the lower mold, an upper mold cavity of the upper mold and the second through hole. During pre-forging, both the lower mold core and the press rod forge and press the initial blank, so that the initial blank forms a finish-forged blank; after the side male die is opened, the lower die core and the press rod drive a finish forging blank to move downwards; according to the method, the production process can be simplified and the production period can be shortened on the basis of ensuring the size precision and the forming quality of forging forming.

This utility model provides a surgical dressing change device to prevent cross-infection, relating to the technical field of surgical dressing change devices. It includes a dressing table with a disinfection mechanism at its front. The disinfection mechanism includes two first-step motors, each with its bottom surface fixedly connected to the outer surface of the dressing table. Two threaded shafts are rotatably connected to the inner wall of the dressing table, with the end of each threaded shaft near the first-step motor fixedly connected to its output end. A movable box is threadedly connected to the outer surfaces of the two threaded shafts, and a water pump is fixedly connected to the upper surface of the movable box. This cross-infection-preventing surgical dressing change device ultimately disinfects the patient's contact area by spraying water through a nozzle at the outlet of a first multi-directional output pipe onto the surface of a rotating ring. This effectively avoids the problem of increased workload and longer disinfection cycles for medical staff caused by the lack of automatic disinfection functionality in traditional dressing change devices.

The application provides a control method of a COT conversion circuit, the COT conversion circuit and a chip. The COT conversion circuit is used in connection with an output circuit. The method comprises the following steps: when it is detected that the output voltage of the COT conversion circuit is less than a preset first reference voltage, the COT conversion circuit is controlled to enter a pressure boosting state, and the pressure boosting state is reset through a reset signal; at the generation moment of the reset signal, if it is detected that the output voltage of the COT conversion circuit is still less than the preset first reference voltage, the reset signal is disabled, so that the COT conversion circuit remains in the pressure boosting state; and until it is detected that the output voltage of the COT conversion circuit is greater than a preset second reference voltage, the reset signal is enabled, so that the COT conversion circuit ends the pressure boosting state.

This utility model discloses a welding forming fixture. The fixture includes: a fixture body on which a workpiece to be welded is placed; positioning blocks welded to the front and rear ends of the fixture body, with the positioning blocks abutting against the end face of the workpiece to be welded; a gantry frame, in an inverted U-shape, spanning the left and right ends of the fixture body and movable along the front and back of the fixture body; a hydraulic device located at the bottom center of the gantry frame, used to apply pressure to the workpiece to be welded, pressing it firmly against the fixture body; and a welding device to weld and fix the workpiece pressed against the fixture body to the fixture body, thus obtaining a formed workpiece. This fixture achieves high-precision curvature fitting through a customized fixture body, avoiding the high cost and long cycle of molding, and solving the problem of rolling irregular curved surfaces; the hydraulic device applies controllable stress to ensure stable fitting and avoids stress concentration caused by traditional bending and pressing.

The invention relates to a lightweight anti-radiation nanometer heat insulation material and a preparation method thereof. The method comprises the following steps: preparing a nanometer oxide dispersion liquid; uniformly mixing the oxide dispersion liquid and an adsorbent through high-speed shear stirring and ultrasonic treatment to obtain a mixed solution; placing the solution in a closed container for high-temperature hydrothermal reaction to obtain a semi-solid gel block; fully mixing the semi-solid gel block, the hydrophobic silicon carbide nano powder, the chopped fibers and the glass powder, and mechanically stirring to form mixed slurry; then extrusion forming is conducted through a mold, the steps of aftertreatment, aging and drying are conducted, and finally the graded heat treatment process is conducted to prepare the light anti-radiation nanometer heat insulation material. According to the preparation method, the light anti-radiation nano thermal insulation material with good temperature resistance and low density can be obtained.

The invention relates to catalysis and heat insulation multifunctional aerogel and a preparation method thereof. The method comprises the following steps: preparing nano oxide dispersion liquid; uniformly mixing the oxide dispersion liquid and an adsorbent through high-speed shear stirring and ultrasonic treatment to obtain a mixed solution; placing the solution in a closed container for high-temperature hydrothermal reaction to obtain a semi-solid gel block; and fully mixing the semi-solid gel block, hydrophobic titanium dioxide (rutile) nano powder, chopped fibers and glass powder, and mechanically stirring to form a new semi-solid gel block. Pressing and forming through a mold, carrying out the steps of post-treatment, aging and drying, and finally carrying out a graded heat treatment process to prepare the multifunctional aerogel with catalysis and heat insulation functions. According to the preparation method, the multifunctional aerogel material with good temperature resistance, infrared radiation resistance and low density can be obtained.

The present application relates to a high fill slope that is rapidly reinforced by polymer grouting and a construction method thereof. The scheme includes the following construction steps: S00, determine the construction area, and level the site to the design elevation; S10, the sliding surface with the smallest stability coefficient meets the design requirements; S20, after the gravel area is backfilled, it needs to be rolled and compacted together with the fill soil; S30, gabion stone cages are constructed on each level of the slope; S40, platforms and drainage ditches are constructed between two adjacent levels of the slope; S50, steps S10 to S40 are cycled until the top of the slope is constructed; S60, the concrete surface layer of the top of the slope is poured to complete the construction, and then the polymer grouting reinforcement of the fill slope is entered; S70, polymer grouting is performed on the gravel area as needed to form a fill slope with fill soil as the filler and the polymer grouting gravel area as the reinforcement body. The present application can avoid the shallow sliding and collapse of the backfill slope and improve the stability coefficient of the deep sliding of the slope.

The invention relates to the technical field of building structure engineering, and particularly discloses a concrete-filled steel tube special-shaped column node rigidity prediction and optimization system, which is characterized in that a three-dimensional entity simulation copy is established by acquiring the geometric dimension, material performance and construction details of a node to be optimized, and the rigidity of the node to be optimized is predicted based on the applied boundary condition and displacement load. Extracting an initial rigidity value from the solved bending moment-rotation angle curve, and constructing a mapping relation copy between the construction parameters and the rigidity based on the initial rigidity values under a plurality of different construction parameters; taking the mapping relation copy as an evaluation basis, automatically searching an optimal construction parameter combination by taking maximization of rigidity or minimization of material consumption as a target in a preset feasible region, and outputting a search result; according to the invention, rapid prediction of node rigidity and automatic optimization of construction parameters are realized.

The present invention provides a hardware-in-the-loop test system and method for avionics equipment of a large fixed-wing unmanned aerial vehicle. The system comprises: a ground control subsystem for sending test instructions for the unmanned aerial vehicle in different flight states; an unmanned aerial vehicle avionics system for performing execution responses in different states; a load execution subsystem for receiving execution responses and performing action execution; an operation monitoring subsystem for real-time monitoring of the operation state of the unmanned aerial vehicle avionics system and the execution result of the load execution subsystem, and comparing the operation state and the execution result with the test instructions sent by the ground control subsystem; and a communication subsystem for communication connection between the subsystems. The present invention can realize multiple function tests on the hardware of the unmanned aerial vehicle avionics system.

The invention relates to a thermal simulation method and system for a printed circuit board, a storage medium and a computer. The method comprises the following steps: constructing an engineering simulation model of the printed circuit board based on a computer aided design method; constructing a plurality of simulation working condition models; sequentially performing thermal simulation calculation on the engineering simulation model under the plurality of simulation working condition models to obtain a thermal simulation result; generating thermal simulation correction parameter data according to the thermal simulation result; correcting the engineering simulation model according to the thermal simulation correction parameter data; according to the invention, the production and design of the printed circuit board are assisted through the engineering model; the defect that the design and verification period is too long due to the fact that samples are directly produced for thermal analysis in the design process of the circuit board is overcome, and therefore the thermal analysis period of the printed circuit board is shortened.

The utility model discloses automatic kaolin raw material screening equipment, which belongs to the field of kaolin screening, and comprises a screening box and a laser detector, a conveyor belt penetrating through two sides is arranged in the screening box, the laser detector is positioned above the middle position of the conveyor belt, a material pushing assembly is arranged on the inner wall of one side of the screening box, and the material pushing assembly is arranged on the inner wall of the other side of the screening box. A conveying belt is arranged in the screening box in the direction perpendicular to the conveying belt, and one end of the conveying belt extends to the position below the conveying belt. The raw materials are driven by the conveying belt to be conveyed into the screening box, when the raw materials are driven by the conveying belt to move to the position below the laser detector, the raw materials are detected through the laser detector, when the raw materials are detected to be unqualified, the pushing assembly is started, the pushing assembly pushes the unqualified raw materials out of the conveying belt, and then the unqualified raw materials fall onto the conveying belt to be conveyed out. Therefore, screening whether the kaolin raw material is qualified or not is completed, the long period and sampling representativeness deviation of manual sampling detection are avoided, and the use stability of the raw material is improved.

The invention discloses a degumming and discharging integrated system and method.The degumming and discharging integrated system comprises a reaction kettle, a medium assembly, a valve assembly and a stirring assembly, a containing cavity used for containing materials is formed in the reaction kettle, the medium assembly comprises a first medium tank and a second medium tank, the first medium tank is used for temporarily storing dielectric media, and the second medium tank is used for temporarily storing the dielectric media; the second medium tank is used for temporarily storing a peptizing medium, the valve assembly is arranged between the reaction kettle and the first medium tank or the second medium tank and is used for adding a discharge medium or a peptizing medium into the reaction kettle, and the stirring assembly comprises a high-speed dispersion machine which is provided with a fixed end and a rotating end; the fixed end of the high-speed dispersion machine is connected to the reaction kettle, and the rotating end is rotationally arranged in the reaction kettle. According to the invention, the problems of long production period and low efficiency caused by the fact that battery cell discharging and battery cell peptizing are two independent processes in conventional production can be effectively solved.

The invention relates to a pseudo composite multi-layer appliance structure optimization design method based on finite element analysis, and the method comprises a finite element geometric modeling module which is used for carrying out the geometric modeling of a plurality of pseudo composite multi-layer appliances of different structures; the finite element physical modeling module is used for setting an interlayer interface friction coefficient of each false composite multi-layer appliance; the finite element calculation module is used for calculating stress and displacement of different layers of materials of each pseudo composite multi-layer appliance with different structures; and the result analysis and judgment module is used for analyzing and judging the stress and displacement of different layers of materials of each pseudo composite multi-layer appliance to obtain the pseudo composite multi-layer appliance structure after optimization design. The method has the advantages that the method is scientific, visual and convenient, the correction effect is improved, the problems of high cost and long period in the prior art are avoided, and the method has very high practical value and is worthy of wide-range popularization and application.

The utility model discloses a modularized pre-charging circuit assembly of an electric automobile. The modularized pre-charging circuit assembly comprises a semiconductor switch which is packaged in a flat standard mode and a pre-charging resistor which is packaged in a flat mode. The pre-charging circuit assembly is electrically connected with the main positive loop through wires and pins on the PCBA board. According to the utility model, the pre-charging circuit assembly is independently produced, so that when the arrangement space of the BDU is insufficient, the pre-charging circuit assembly can be independently arranged and is connected with the main positive loop only through a small number of thinner non-power connecting wire harnesses; the problems of weight and cost rise caused by increase of the use amount of long copper bars due to separate arrangement of high-power loops in the prior art I are avoided; meanwhile, due to the standardized design of the pre-charging circuit assembly, the development and material cost can be reduced, and the problems of high mold cost and long mold opening period caused by customized non-standard special-shaped parts in the prior art II are solved.

The invention relates to magnetic and heat-insulating multifunctional aerogel and a preparation method thereof. The method comprises the following steps: preparing nano oxide dispersion liquid; uniformly mixing the oxide dispersion liquid and an adsorbent through high-speed shear stirring and ultrasonic treatment to obtain a mixed solution; placing the solution in a closed container for high-temperature hydrothermal reaction to obtain a semi-solid gel block; fully mixing the semi-solid gel block, the hydrophobic magnetic nano powder, the chopped fibers and the glass powder, and mechanically stirring to form a new semi-solid gel block. And then carrying out compression molding through a mold, carrying out post-treatment, aging and drying steps, and finally carrying out a graded heat treatment process to prepare the magnetic and heat-insulating multifunctional aerogel. According to the preparation method, the magnetic multifunctional nanowire aerogel material with good temperature resistance, infrared radiation resistance and low density can be obtained.

The present disclosure relates to a gameplay parameter management method, device, system, medium and computer program product. In at least one embodiment of the present disclosure, by providing a gameplay parameter editing page, it is convenient for business personnel to directly edit the gameplay parameters on the page, and then generate a gameplay parameter form to achieve business personalized customization of the gameplay parameters; after generating the gameplay parameter form, the business personnel can bind the gameplay parameter form with the activity configuration item; by providing an activity editing page, the various activity configuration items involved in an activity are organized into an activity configuration item list, which is convenient for business personnel to assign parameters to the gameplay parameter form bound to each activity configuration item, and then generate an activity, thereby achieving management of gameplay parameters in units of activities, and business personnel can directly participate in management, avoiding the problem of insufficient number of R&D personnel or long development cycle, and not affecting the efficiency of business iteration.

This application discloses a multiply-accumulate operation method, apparatus, neural network processing apparatus, and electronic device. The multiply-accumulate operation method encodes input activation data into encoded activation data and original weight data into encoded weight units, enabling the multiplication result to be obtained in the memory array simply by selecting a shift operation, replacing complex multiplier circuits and significantly reducing computational power consumption. By shifting and accumulating the first intermediate result to obtain the second intermediate result, and using computation-based compensation codes for precise compensation, the correctness of the result is ensured while avoiding the additional cycle overhead and complex circuitry caused by processing unsigned data or sign extension in traditional schemes. This improves computational throughput while effectively enhancing computing power and optimizing power consumption, ultimately comprehensively improving the energy efficiency ratio and overall processing efficiency of the multiply-accumulate operation.

The utility model provides a portable SDI pollution index detection device, which belongs to the technical field of environment monitoring and water quality detection and comprises a tester body, a display panel and a control panel, and the display panel and the control panel are adaptively mounted on the outer surface of the tester body. The dismounting and mounting mechanism comprises a bearing assembly arranged on the outer side of the tester body, an inner supporting assembly which is arranged on the outer surface of the bearing assembly and can do circular expansion motion outwards, and a connecting assembly which is fixedly connected to the top of the tester body and is matched with the inner supporting assembly to connect the tester body with the bearing assembly for use. Compared with the operation of unfastening a plurality of buckles or zippers, through the cooperation of the bearing assembly, the inner supporting assembly and the connecting assembly, the tester body and the bearing assembly can be quickly disassembled and assembled only by rotating the knob, so that the problem that the detection period is prolonged due to the fact that the time consumed for opening the device is too long is solved; and the timeliness and continuity of the detection work are ensured.

The present invention discloses a flood detection method based on Beidou MP and CGMC dual combined observation values, including the following steps: S1, obtaining satellite observation data; S2, preprocessing the observation data; S3, establishing a flood detection model; S4, detecting the flood twice based on the flood detection values ​​generated based on the pseudo-range MP combined observation value and the phase CGMC combined observation value, and outputting the detection results; S5, combining the detection results of the flood detection with the two flood detection values, and marking the detection results according to the detection threshold; S6, issuing flood warnings according to the detection results and updating the detection model with the detection results. The above technical solution can be used to make full use of the existing Beidou navigation system satellites and low-cost measurement receivers for flood detection, which can effectively improve the detection time and space resolution and detection accuracy.

The invention discloses a vehicle dynamic control method and device based on a high-precision sensor and a medium, and relates to the technical field of dynamic control, and the method comprises the steps: based on a vehicle dynamic change event, carrying out the analysis through an event-driven control trigger logic in an industrial control architecture, and generating a control trigger instruction set in one-to-one correspondence with the current vehicle dynamic change event, and performing control response on different vehicle dynamic variables in the industrial control architecture in a multi-control channel parallel adjustment mode according to the control trigger instruction set. Performing priority judgment and conflict suppression on the control output of each control channel through a real-time arbitration mechanism to form a unified coordination control instruction; through the control triggering mode based on the vehicle dynamic change event, continuous modeling and fixed period calculation on the vehicle running state are avoided, redundant control calculation is no longer executed when the vehicle dynamic change is not obvious, and the control calculation efficiency is improved.

The invention belongs to the technical field of inositol production and packaging, and particularly relates to an inositol pipeline full-automatic metering and packaging device which comprises an air pipe. The inositol powder is conveyed to the stacking bin for temporary storage and buffering through the air pipe by an external pump machine. The motor I is started to drive the screw rod to rotate, and the twisting blade pushes the powder into the flow meter at a constant speed through the extrusion pipe for accurate metering; meanwhile, the conveying frame is driven by external transmission equipment to stably move through cooperation of an embedded groove in the bottom of the conveying frame and a strip rod on the fixing frame, and the opened plastic package bag is accurately conveyed to the position below a discharge port of the flow meter. And when the flowmeter detects that the passing powder reaches the preset weight, the full plastic package bags are transferred to the plastic package space between the two groups of grinding wheels along with the conveying frame. In the plastic packaging link, firstly, a second motor is started, a second gear is driven to rotate, a first gear meshed with the second gear is driven, and a coaxial driving side grinding wheel starts to rotate; and then, a synchronous wheel I at the top of the grinding wheel on the driving side transmits power to a synchronous wheel II on the driven side through a synchronous belt.

This invention discloses a structure for solving the whistling sound at the tip of a car hood, belonging to the field of automotive technology. It includes a front bumper body, which is the main component of this structure; a hood, hinged to the vehicle body and located on top of the front bumper body; a front bumper grille trim strip, installed on the outer side of the front bumper body; and a spoiler cylinder, disposed on the outer surface of the front bumper grille trim strip. This invention, by incorporating the spoiler cylinder, disrupts the original airflow path through its design on the front bumper grille trim strip. The spoiler cylinder's features allow airflow to bypass the tip of the hood or reduce its direct impact, thereby reducing airflow separation and vortex formation, thus lowering the probability of whistling. Furthermore, the spoiler cylinder can be molded onto the outer surface of the front bumper grille trim strip, incurring only a small molding cost, which is negligible and easy to implement.

The invention provides a dynamic simulation analysis method and a debugging mode for a high-speed ball bearing retainer. Belongs to the technical field of ball bearing dynamics simulation analysis. The method comprises the following steps: establishing a bearing three-dimensional model; carrying out linear perturbation modal analysis on the retainer under stress stiffening and rotation effects in finite element analysis software, and generating a modal neutral file; calculating the equivalent contact stiffness under the coupling action of multiple factors such as a bearing clearance, a contact angle and an oil film, solving load-deformation distribution of each rolling body by combining geometric equations between the rolling bodies and inner and outer rings and a force balance equation, and calculating equivalent contact parameters under the lubrication working condition; constructing a rigid-flexible coupling dynamic analysis model of the retainer; by constructing the rigid-flexible coupling analysis model of the high-speed ball bearing retainer and integrating the equivalent contact parameters under the multi-factor coupling effect, the analysis error caused by model simplification is reduced, the problems of high cost and long period of a traditional test method are avoided, and the analysis efficiency and precision are improved.

The utility model relates to a solid rocket engine nozzle expansion section ablation examination structure. The expansion section is composed of an ablation examination sample block and a low-cost trepanning expansion section, the ablation performance of the woven expansion section material in two states can be examined at a time, the examination sample block adopts a stepped plunger type structure in order to avoid gas fire penetration at a butt joint part, and a combined body of the stepped plunger type ablation sample block and the trepanning expansion section is formed. The structure is arranged in a spray pipe shell to form a spray pipe, and the spray pipe is connected with a real solid rocket engine, so that the aim of examining the ablation performance of various woven expansion section materials through one-time solid rocket engine test run under the same working condition can be fulfilled. According to the utility model, the plurality of stepped plunger type examination sample blocks are embedded into the expansion section of the spray pipe, so that the examination of the ablation performance of the expansion section material under the actual working condition of a solid rocket engine is realized, and the examination authenticity and the examination efficiency of the expansion section material are improved.

The invention provides a hybrid expert model negative feedback iteration method and device, a storage medium and a program product, and the method comprises the steps: carrying out the cross-modal scene semantic analysis of vehicle end feedback data collected from a vehicle end, roadside sensing data of a roadside device, and macroscopic traffic data of a cloud system, and generating corresponding scene label information; based on the scene label information and the macroscopic traffic data, determining an activation weight of each expert sub-model in the hybrid expert model; negative feedback data in the vehicle running process are collected, and in combination with the influence degree of the target expert sub-model in the negative feedback scene, a responsibility expert sub-model needing to be optimized is determined; and performing directional incremental training on the responsible expert sub-model based on the negative feedback data, performing comprehensive evaluation on the expert sub-model after incremental training, and executing parameter replacement or version updating when an updating condition is met. According to the method, rapid and accurate local optimization is realized while the overall reliability of the model is ensured, and global parameter drift is effectively inhibited.