15results about How to "Consistency and stability" patented technology

The invention discloses a bridge bearing capacity dynamic evaluation method based on multi-source monitoring data driving, and aims to solve the problem that the bearing evaluation precision is difficult to guarantee under a sparse sensing coverage condition. According to the method, through cross-modal attention alignment guided by event anchor points, mask codes influencing line and propagation time delay constraints and geometric position coding, Green function kernels and time-varying boundary flexibility latent variables are introduced into a physical constraint neural operator model, symplectic integral propulsion is adopted, and block shape-preserving interval estimation and order-preserving calibration weighted according to working conditions are adopted. According to the method, the full-bridge space-time response and the bearing utilization coefficient are calculated, the risk level and the load limiting suggestion are output, and the technical effects of reliability improvement, physical consistency and long-time energy stability evaluation under the complex working conditions and the low signal-to-noise ratio are achieved.

The application provides a fiber-optic Fabry-Perot sensor based on light beam convergence and a manufacturing method thereof, and relates to the technical field of semiconductors. The sensor comprises a diaphragm layer, an intermediate layer and a bottom layer which are arranged in layers; the diaphragm layer is provided with a first groove, the intermediate layer is attached to the diaphragm layer in a manner that a first layer surface thereof faces the first groove, so as to form a Fabry-Perot cavity based on the first groove; the bottom layer is provided with a second groove, the intermediate layer is attached to the bottom layer in a manner that a second layer surface thereof faces the second groove, so as to form a nano-containing cavity based on the second groove; the second layer surface of the intermediate layer is formed with a micro-nano anti-reflection structure comprising array-distributed anti-reflection units located in the nano-containing cavity; and the bottom layer is formed with a micro-nano collimation structure comprising array-distributed collimation units located in the nano-containing cavity and in a symmetrical positional relationship with the micro-nano anti-reflection structure. The application at least reduces the manufacturing complexity.

The invention discloses a full-tab cylindrical battery cell and a manufacturing process thereof, the battery cell comprises a roll core, the roll core is provided with two process surfaces, each process surface is uniformly distributed with a flattening area and a non-flattening area, the non-flattening area comprises a first non-flattening area and a second non-flattening area, and the first non-flattening area and the second non-flattening area are arranged on the roll core. The first non-kneading area, the kneading area and the second non-kneading area are sequentially arranged from the center direction of the roll core to the periphery, the first non-kneading area, the second non-kneading area and the process face are located in the same plane, and the kneading area is higher than the process face. Therefore, only the rubbing area is rubbed during rubbing, so that the technical problems that the foil on the innermost side and the foil on the outermost side of the roll core of the existing full-tab cylindrical battery core are easy to turn over, and the foils are tightly attached to each other, so that the liquid injection and infiltration time is long, and the production efficiency is relatively low are fundamentally solved.

The application discloses a kind of 3D printing composite material and preparation method thereof, it is related to 3D printing functional composite material and flexible electronic material technical field.The application is prepared when composite material, with thermoplastic polyurethane as flexible matrix, graphene, carbon nanotube is synergistic conductive filler, by solution dispersion, melt blending, fused deposition forming and microwave surface enhancement is obtained.The application utilizes graphene sheet layer support and carbon nanotube bridging effect, constructs continuous efficient conductive network under low filler, solves the industry pain point that traditional material filler is highly dependent, printing is poor, electrical stability is insufficient, has excellent printability, piezoresistive response and cycle stability, and is suitable for flexible sensing, wearable electronics, structure function integrated device.

The application provides a kind of unmanned ship consistency control method and equipment, it is related to unmanned system cooperative control technical field.The method comprises: according to the real-time state of the unmanned ship and the state of the unmanned ship at last event trigger time, construct real-time local measurement error;According to the state of the unmanned ship at last event trigger time and the state of all adjacent unmanned ships of the unmanned ship, construct joint error;Based on the real-time local measurement error and joint error of each unmanned ship, judge whether event trigger condition is satisfied, when any unmanned ship satisfies event trigger condition, obtain and according to the state of the unmanned ship at event trigger condition satisfying time, the state of the adjacent unmanned ship of the unmanned ship and unmanned ship controller gain matrix, update the controller output of the unmanned ship and the adjacent unmanned ship of the unmanned ship, carry out consistency control to each unmanned ship according to controller output;The application can accurately and safely carry out multi-unmanned ship consistency control under the condition that system model is unknown.

Hammering forging equipment for sleeve forging comprises an equipment body frame, a hydraulic cylinder body mechanism is arranged at the top of the equipment body frame and provided with a piston rod moving back and forth in the vertical direction, and a balance weight hammering installation upset is installed at the bottom of the piston rod. A forging and hammering punch structure is detachably mounted on the lower surface of the balance weight hammering mounting upset, a forging pedestal is arranged below the forging and hammering punch structure, and a forging die structure is detachably mounted in the middle of the forging pedestal. The die is simple in structure, the size, shape and performance of forged workpieces are stable and consistent, labor cost is saved, and applicability is high.

The utility model discloses a black aluminum oxide hanger for a luggage rack, and belongs to the technical field of anodizing hangers. The hanging frame is provided with an upper hanging rod and a lower hanging rod; the upper hook is arranged on the upper hanging rod, the hanging end and the connecting end of the upper hook are located on the front face and the rear face of the hanging frame respectively, and the upper hook and the upper hanging rod are connected only through a single point so that the upper hook can have elasticity; the lower hook is arranged on the lower hanging rod; and the upper and lower ends of the product are respectively hung on the upper hook and the lower hook. After a product is hung, the upper hook provides continuous downward pressure by means of elasticity of the upper hook, it is ensured that the luggage rack is always kept in tight fit in the whole anodic oxidation process, the reliability of contact electric conduction is improved, and the lower hook provides upward supporting force for the product and is matched with the upper hook, so that the product is prevented from being damaged. And the double acting force ensures that the aluminum pipe is stably hung in the anodic oxidation tank, so that the product is prevented from falling off, the reject ratio is reduced, and the production efficiency is improved.

The invention discloses an automatic titanium welding device and method for a cathode roller. The automatic titanium welding device comprises a servo motor, a speed reducer system, a driving gear, a guide sleeve, a laser positioner, a rotary gear, a thrust bearing, a positioning block, a rotary table top, a robot welding system and a base. The titanium welding efficiency of the cathode roller is improved, the labor intensity is reduced, and the titanium welding consistency is stabilized; by means of the device, titanium welding of the cathode roller can be achieved automatically in the welding process by calling a welding program, and automation of welding of a titanium plate and a titanium cylinder, welding of a titanium ring and a titanium cylinder and welding of the titanium ring and the titanium plate of the cathode roller is achieved.

This utility model discloses an ultrasonic scanning sealing fixture for power modules, including a positive pressure waterproof sealing box. The positive pressure waterproof sealing box includes an upper cover plate, a sealing box base, sealing box buckles, and sealing box pins. The sealing box buckles are disposed on the upper cover plate, and the sealing box pins are installed on the sealing box base via pins. The pins are equipped with elastic elements for switching the sealing box pins to an engaged state with the sealing box buckles. Multiple sealing box buckles are provided, and each side of the upper cover plate has a sealing box buckle. This utility model's ultrasonic scanning sealing fixture for power modules solves the problem of uneven product locking force by adding multi-sided multi-pin locking and adopting a vertical closing method, making the overall locking consistency and product stress more stable, improving the overall sealing performance of the fixture and the service life of the cover plate.

The invention discloses a point cloud map determination method and device, equipment and a storage medium, and relates to the technical field of computers. The method comprises the following steps: acquiring point cloud data, inertial measurement data and GNSS data; based on the point cloud data and the inertial measurement data, utilizing a laser mileage calculation method to obtain corrected point cloud data, first global pose data and relative pose data; determining second global pose data under the GNSS data coordinate system; based on the corrected point cloud data, the relative pose data and the second global pose data, constructing an initial factor graph to determine a relative pose constraint in the window and a relative pose constraint between the windows; determining a GNSS relative pose constraint based on the second global pose data and the GNSS data; and obtaining a target factor graph based on the initial factor graph, the GNSS data, the in-window relative pose constraint, the inter-window relative pose constraint and the GNSS relative pose constraint, and carrying out graph optimization processing on the target factor graph to obtain a point cloud map.

The invention provides a high-precision laser welding temperature measurement optical device and system, and the device comprises a welding mechanism which comprises a laser transmission joint, a light path transmission lens and a dual-band achromatic field lens, and the light path transmission lens is disposed between the laser transmission joint and the dual-band achromatic field lens; and the temperature detection mechanism comprises a temperature measurement sensor and a temperature signal processor, and the temperature measurement sensor is in signal connection with the temperature signal processor. According to the laser welding device, laser welding machining is conducted on the to-be-welded element through the welding mechanism, effective overlapping and synchronous follow-up of double light spots can be guaranteed through the double-waveband achromatic field lens, and therefore the purpose of guaranteeing the consistency and quality stability of the welding process is achieved. In the process, the temperature detection mechanism can analyze and monitor the welding heat according to the feedback laser, and compared with existing conventional laser welding equipment, the laser welding equipment has the advantages of being high in welding quality, capable of achieving real-time monitoring, accurate in temperature detection, high in effect speed, wide in application range and the like.

The present invention relates to the field of loudspeaker technology, and in particular to a differential electromagnetic receiver drive assembly and its assembly tooling and assembly method. During the assembly process of the drive assembly, the gap between the dynamic suction plate and the pole shoe is required to be very high. During the assembly process, the gap must be adjusted and the front and rear sound cavities and sound damping must be configured to adjust the audio characteristics. In this application, a gap plate is prefabricated according to the design requirements of the gap and fixed on the clamp seat. The gap plate is used to assist the assembly of the drive assembly to ensure that the gaps between the left and right poles are uniform and free of debris. A differential electromagnetic receiver drive assembly and its assembly tooling and assembly method are specifically disclosed. By adding a gap adjustment tooling to assist the assembly during the installation of the drive assembly, the dynamic suction plate and the pole shoe in the receiver are arranged in parallel, so that the gaps between the left and right levels are the same and free of debris, and the product requirements are met; the sound pressure of the swing-pivot differential electromagnetic receiver product is improved, the pure sound is improved, the impedance is stable, and the product consistency is stable.

The invention discloses a single-screen all-in-one machine which comprises a machine shell, a rubberizing alignment device, a screen pasting adsorption device, a screen pressing device, a glue dispensing device, a controller and a power source assembly, and the rubberizing alignment device, the screen pasting adsorption device, the screen pressing device and the glue dispensing device are all electrically connected with the controller; the power supply assembly is used for supplying power to the whole equipment; the machine shell comprises a bottom plate, a main panel, side walls, a rear panel and a top cover; the adhesive dispensing device comprises an adhesive dispensing machine, the adhesive dispensing machine is arranged on the main panel, the main panel is provided with a screen pressing opening used for containing the screen pressing device, and the adhesive pasting alignment device and the screen pasting adsorption device are arranged on the top cover. According to the single-screen all-in-one machine disclosed by the invention, through equipment integrating a plurality of working procedures, accurate fitting, pressing and dispensing sealing of a mobile phone screen can be realized, and the efficiency and accuracy of maintenance and assembly of the mobile phone screen are improved.

This invention relates to a method and system for predictive and proactive control of cigarette machine production quality based on operating condition parameters, belonging to the fields of tobacco machinery manufacturing, industrial automation control, and artificial intelligence. It includes: real-time acquisition of multi-dimensional operating condition parameters during cigarette machine operation; data preprocessing; acquisition of multi-dimensional time-series feature input sequences; construction of a time-series prediction model based on a long short-term memory network and incorporating an attention mechanism; training the time-series prediction model using the time-series feature input sequences; inputting the real-time operating condition feature sequences into the trained model to obtain key quality indicators; establishing a multi-index quality evaluation system using the analytic hierarchy process (AHP); comprehensively evaluating key quality indicators and other key quality indicators to obtain quantitative scores; and initiating graded quality early warning signals based on the degree to which the quantitative scores deviate from target values, using the early warning signals to drive parameter adjustments in the cigarette machine control system, thereby achieving proactive correction of quality deviations.

The application discloses an intelligent control OCA integrated processing control system, and relates to the technical field of automatic processing equipment control. The process time sequence acquisition module continuously acquires the execution time, the running beat, the material position change, the code spraying moment and the detection triggering state of each process during the integrated processing control operation process, and combines them according to the actual occurrence sequence to form a process time sequence record. The application continuously acquires the process execution time, the beat and the state information, establishes the process time sequence record, accurately reflects the actual execution sequence and realizes the time sequence backtracking. The time difference record drives the beat revision and the execution control, the time compensation and the beat misplacement insertion are utilized to realize the process synchronization and self-adjustment, and the stable coordination of the processing process, the consistent quality and the control precision improvement are guaranteed.