18results about How to "Reduce control complexity" patented technology

This invention provides a self-cleaning aluminum ash conveying device, belonging to the field of aluminum ash conveying. It includes a screw conveyor with a top cover. The top cover has partition grooves evenly spaced along its length. Air holes are provided on both the front and rear sides of the screw conveyor, with each pair of adjacent air holes forming a group, and several groups arranged along the length of the screw conveyor. A moving assembly is symmetrically arranged on both the front and rear sides of the screw conveyor, and a moving plate is installed within the moving assembly. This invention, through the cooperation of the moving assembly, lifting assembly, and connecting assembly, enables the simultaneous and reverse blowing of aluminum ash from both sides of the screw conveyor. Simultaneously, the partition frames on both sides isolate the interior of the screw conveyor, preventing the blown aluminum ash from shifting laterally within the screw conveyor, thus ensuring a more thorough cleaning effect.

This invention discloses a wastewater treatment device and method for all-cotton spunlace nonwoven fabric, relating to the field of wastewater treatment technology. The device includes a wastewater treatment tank, a collection tank, a drive structure, two sets of trajectory running structures, and a pusher block. This invention utilizes the coordinated action of the pulling and restraining units in the trajectory running structure to move the pusher block along a rectangular closed trajectory of backward, downward, forward, and upward movement, sequentially completing the functions of drainage, scraping and conveying impurities, and resetting after impurity removal. When the pusher block moves forward, it contacts the opening and closing structure, automatically opening the sealing door through the mechanical linkage of the contact plate, slide rod, connecting plate, guide plate, and connecting rod, and closing it as the pusher block resets. This eliminates the need for a separate power source or sensor for the sealing door, simplifying the device structure and reducing manufacturing costs and control complexity.

This invention discloses a multi-vehicle cooperative control method, system, medium, and program product. The method includes constructing a lateral and longitudinal coupled dynamic model for the multi-vehicle cooperative transportation system and extracting the model matrix of the lateral and longitudinal coupled dynamic model; constructing system constraint equations for the multi-vehicle cooperative transportation system with the cargo as the leader, including motion constraints and articulation constraints, and extracting the constraint matrix of the system constraint equations; obtaining the real-time state of the multi-vehicle cooperative transportation system; calculating the constraint forces of the multi-vehicle cooperative transportation system based on the model matrix of the lateral and longitudinal coupled dynamic model, the constraint matrix of the system constraint equations, and the real-time state; and calculating the actual control quantities of each vehicle based on the constraint forces of the multi-vehicle cooperative transportation system. This invention aims to solve the challenges of strong coupling, nonlinearity, and underactuation in existing multi-vehicle cooperative transportation systems, and improve the tracking performance of multi-vehicle cooperative transportation systems under topologically stable configurations.

This invention discloses a six-degree-of-freedom underwater robot, comprising a frame, a propulsion system, a sensor monitoring system, and a controller. The propulsion system includes four horizontal vector thrusters and two vertical thrusters. The controller is communicatively connected to the propulsion system and the sensor monitoring system, and achieves independent, decoupled control of the propulsion system's six degrees of freedom based on multi-dimensional sensor data collected by the sensor monitoring system. This invention also discloses a corresponding six-degree-of-freedom underwater robot control system, including a host computer layer, a ROS core layer, a control layer, a drive layer, and a hardware terminal layer, all connected by communication. This solution optimizes the hardware layout, achieves independent, decoupled control of the six degrees of freedom, and improves underwater motion and hovering stability. This design features deep hardware and software synergy, improving underwater operational stability, shortening the development cycle, and enhancing operational safety, making it suitable for various scenarios such as underwater exploration, detection, and scientific research.

The present application discloses a three-axis moving mechanism for installing a gear side clearance gasket of a reducer, including a base, on which a frame is fixedly installed. Inside the frame, there are a Z-axis transmission component, a Y-axis transmission component, and an X-axis transmission component. The Y-axis transmission component is arranged on the Z-axis transmission component, and the X-axis transmission component is arranged on the Y-axis transmission component. By setting the Y-axis transmission component, the X-axis transmission component, and the Z-axis transmission component, after the division of labor among the Z-axis, Y-axis, and X-axis, the control system can more simply plan the pick-up-move-place path, reduce the compound motion requirements of each axis, lower the control complexity, and each axis independently controls the direction, which can avoid the collision risk caused by structural overlap during multi-axis linkage.

This invention belongs to the field of polyurethane adhesive production technology, specifically relating to a reaction vessel for polyurethane adhesive production. The reaction vessel includes a tank body, with a stirring motor fixed to the upper end of the tank body. A stirring shaft is fixed to the output end of the stirring motor, and the tank body and the stirring shaft are rotatably connected. Multiple adjustment chambers are sequentially formed inside the stirring shaft from top to bottom. Multiple stirring units are assembled on the outer side of the stirring shaft and inside the tank body. Each stirring unit consists of multiple stirring blades located on the same horizontal plane. This invention uses a vertically positioned sensing plate as a direct viscosity sensing element, which overcomes the oil pressure inside the swing cylinder and drives the sleeve, cross arm, and bushing to produce a corresponding amplitude of horizontal swing. This is transmitted to the stirring blades through an angle adjustment component, achieving automatic adjustment of the stirring blade angle. This allows the stirring blades to dynamically adjust the stirring angle according to real-time changes in the material viscosity.

This invention relates to the field of vertical milling and turning technology, and discloses a vertical milling and turning composite machining center, including a machining table, a support frame, a vertical cantilever, a drive motor, and a drive shaft. A composite machining mechanism for switching machining types is mounted on the side of the vertical cantilever; a switching mechanism for changing the workpiece's motion state according to the machining type is provided below the composite machining mechanism; a spraying mechanism for changing the coolant's application according to the machining type is provided on the upper surface of the machining table; a clamping mechanism for fixing a ring-shaped workpiece is provided at the top of the switching mechanism; the composite machining mechanism includes a sliding frame plate, with two double-toothed plates slidably connected inside the sliding frame plate. This invention utilizes the forward and reverse directions of the vertical cantilever's lifting stroke to correspond to different machining actions, improving the continuity of actions and machining efficiency, and ensuring the positional stability and synchronization accuracy of the milling cutter and drill bit near the workpiece.

The present invention discloses an intelligent pillow system with multi-zone airbag adjustment. The present invention precisely senses the head position and sleeping posture through a high-density fiber pressure sensor array, and based on this information, drives an innovative "single air pump + multiple electronic control valves" and "integral airbag + partitioned air conduction" structure, achieving remarkable beneficial effects: First, by immediately triggering the overall descent protection when the head is tilted up / down, it can actively prevent hyperextension and hyperflexion of the cervical vertebra, effectively reducing the risk of neck pain and discomfort. Second, the sensor without protrusions embedded and the PWM smooth adjustment of the airbag ensure a comfortable experience; the system adopts a single power unit and logical partition design, greatly simplifying the air circuit, significantly reducing the hardware cost, power consumption, and the failure rate of easy leakage in multi-chambers, and improving the reliability. In addition, the interaction mode combining user-set instructions and automatic recognition takes into account both convenience and personalization, and the self-learning module enables the pillow to continuously adapt to the user's habits, achieving long-term precise personalized support.

This invention discloses an automated crop planting device for cuttings, relating to the field of agricultural machinery. It includes a planting cylinder and a lifting platform. The upper part of the planting cylinder has a seedling delivery component within a seedling separation chamber. Its trumpet-shaped support plate, with its wide opening facing upwards, accommodates seedlings. A concentric seedling separation plate at the bottom is driven to rotate by an independent motor. Mechanical single-plant separation is achieved through seedling holes and notches. Seedlings fall under gravity through the delivery tube into the lower cutting chamber. The rotation speed of the seedling separation plate is linked to the walking speed and the cutting frequency to ensure proper spacing between plants. The cutting chamber is equipped with an adaptive cutting component. Seedlings fall between a pair of synchronously rotating inward-facing conveying gears, and are elastically clamped by a tension spring to adapt to irregular shapes and avoid damage. Simultaneously, the V-shaped clamp of the vertical cutting component moves downwards to correct tilting, achieving precise vertical insertion of seedlings into the soil. This device realizes mechanical single-plant separation, elastic adaptive clamping, and vertical cutting, improving operational efficiency and survival rate.

The present application relates to a kind of permanent magnet electromagnetic hybrid's traction suspension guide three-in-one's magnetic suspension system, including track beam, vehicle-mounted permanent magnet array, track electromagnet coil, vehicle-mounted permanent magnet array is fixed to the bottom of vehicle suspension frame;Track electromagnet coil is correspondingly arranged on the upper surface of track beam, and is oppositely arranged with vehicle-mounted permanent magnet array.The system relies on the repulsion between the constant magnetic field generated by vehicle-mounted permanent magnet array and the controlled electromagnetic field generated by track electromagnet coil after energization, while realizing the non-contact suspension, guidance and traction of vehicle.The present application solves the problems of existing magnetic levitation system, such as complex structure, difficult control, high energy consumption and poor compatibility with existing infrastructure.

The application relates to the technical field of 3D printers, in particular to a multi-axis delta 3D printer which comprises printing modules, the printing module comprises an equilateral triangular prism-shaped rack and a printing platform and a printing head arranged on the rack, the rack comprises two supporting platforms and three groups of supporting columns fixedly connected between the two supporting platforms, the printing module further comprises three groups of sliders corresponding to the supporting columns, transmission arms and driving assemblies, the slider is slidingly arranged on the supporting column, the two ends of the transmission arm are respectively spherically hinged with the slider and the printing head, the driving assembly is used for driving the slider to ascend and descend, the printing module is provided with at least two, one side wall of the supporting platform of the two adjacent printing modules abuts against each other and the side wall is an abutting side wall, the slider at any one end of the abutting side wall of the supporting platform in the printing module and the slider at the corresponding one end of the supporting platform in the adjacent printing module are driven by the same group of driving assemblies.

This application relates to a performance testing method, apparatus, and storage medium for photovoltaic cells. The testing method involves electroluminescence detection of the test sample to obtain a first electroluminescence image; multiple consecutive temperature shock tests are performed on the test sample; the temperature difference of a single temperature shock test is greater than 130°C; after multiple temperature shock tests, electroluminescence detection is performed on the test sample to obtain a second electroluminescence image; based on the first and second electroluminescence images, the temperature shock resistance of the solder joints of the cells in the test sample is evaluated; thereby accumulating equivalent damage in fewer cycles, reducing testing costs, shortening the duration of a single test, compressing the testing cycle, and improving testing feedback efficiency, which can meet the higher requirements for testing efficiency in the research and development iteration of new processes and materials.

This invention discloses a geofencing control method for quadrotor UAVs based on projected state safety. After constructing a nonlinear dynamic model of the quadrotor and defining the geofence, the invention designs an outer-loop nominal controller to generate nominal forces; utilizes the asymptotic stability of geometric control to decouple the underactuated dynamics into three independent linear double integrator subsystems; based on projected state safety theory, a reduced velocity safety set is constructed without shrinking the original geofence; a quadratic programming filter based on a second-order control obstacle function is established; the safety forces are mapped to total thrust and desired attitude; an inner-loop geometric attitude controller is designed to calculate the control torque; and finally, a hybrid matrix drive motor is used. This invention can strictly maintain the UAV's flight within the geofence under continuous external disturbances while achieving high-precision trajectory tracking, solving the problems of poor disturbance resistance, low space utilization, and model mismatch in existing technologies.

This invention discloses a short takeoff / vertical landing (STOVL) aircraft with a hybrid propulsion system. It employs a fuselage frame as the main load-bearing structure, combined with an aerodynamic layout of all-moving canards, main wings, mid-section wings, and twin vertical tails. The hybrid propulsion system comprises four sets of cross-rotating motor-propellers and thrust-direction-adjustable STOVL level flight engines. The engines operate throughout the entire flight, while the motor-propellers are only engaged during STOVL and mode switching. Through linear adjustment of motor power, coordinated changes in engine thrust direction and magnitude, and speed-dependent aerodynamic lift of the wings, seamless and smooth transitions are achieved between STOVL / hovering, mode switching, high-speed level flight, and payload modes. Compared to existing technologies, this design reduces structural dead weight and control complexity, extends endurance, and balances STOVL flexibility with high-speed cruise efficiency.

A back-emitting lidar transmitter chip based on a nanobeam switch array includes a nanobeam switch routing network, a metal reflective layer, and a metasurface lens serving as a Fourier transform lens. The nanobeam switch routing network is fabricated on the front side of the chip. After the input optical signal enters the nanobeam switch branch of the network, it is routed by specific nanobeam switch units to the corresponding nanobeam emission branch, and then emitted into free space by specific nanobeam emission units. The front metal reflective layer reflects the upward-radiated light waves downwards, and finally, all downward-emitted light waves are collimated and emitted in a designated direction by the back metasurface lens. This invention enables directional transmission, simultaneously achieving switch selection and vertical emission functions. The silicon-based metasurface lens can serve as a Fourier transform lens to achieve high-precision, wide-range beam scanning, providing a superior technical path for the large-scale manufacturing of silicon-based integrated lidar transmitter chips.

This invention relates to the field of laser cutting technology, and provides a laser cutting device for processing laptop casings, including an operating table and a laser cutting head mounted on its top; a movable frame is installed inside the operating table, and clamping structures are provided on both sides of the movable frame; a longitudinal plate is installed inside the movable frame, and a transverse plate is installed at the bottom of the longitudinal plate. This invention, through the clamping structure, incorporates a gear and rack mechanism between the outer support bar and the inner support block. When the outer support bar is in operation, the second rack meshes with the gear, driving the inner support block to move horizontally towards the inner wall of the casing sidewall, forming an adaptive inner support that extends into the sidewall. When laser cutting the top of the sidewall, this provides reliable back support for the thin-walled sidewall, effectively avoiding vibration, tool deflection, or deformation caused by lack of support. Simultaneously, the narrow edge design of the inner support block avoids the rounded transition section at the corner of the sidewall, ensuring the fit of the support and the integrity of the processing.

The application discloses a kind of full-automatic wheel hub air tightness detection device, belong to wheel hub detection device technical field.It includes a plurality of parallel arrangement detection table and the feeding and discharging conveying mechanism that passes through detection table, feeding and discharging conveying mechanism includes plate chain conveying component, jacking assembly and discharging assembly, multiple tray assemblies are installed on plate chain conveying component with equal interval, tray assembly includes mounting plate, top plate and adjusting plate, adjusting plate is linked with top plate and all is equipped with the air hole that is connected, jacking assembly is located at the output end of plate chain conveying component inside, for lifting adjusting plate and driving top plate and wheel hub to rise to preset height, discharging assembly includes two symmetrically arranged discharging rods, the diameter of two discharging rods interval is less than wheel hub outer ring, for supporting wheel hub outer ring inner wall from below and guiding discharging.The application realizes wheel hub automatic separation and transfer, without manual intervention, significantly improve detection efficiency and reduce manpower input.

This invention relates to a voltage over-limit mitigation device and control method for power distribution networks. The device includes a voltage regulator and a transformer. The voltage regulator comprises three sets of switch pairs, two inductors, and two capacitors. Its input side is connected in parallel to the power supply side of the power distribution network, and its output side is connected in series to the load side via the transformer. When the device is activated, the output voltage of the AC / AC voltage regulator is calculated based on the current load voltage, the ideal load voltage, and the transformer turns ratio. The operating mode and switching control method of the AC / AC voltage regulator are determined based on the output voltage, thereby adjusting the load voltage to mitigate voltage over-limits. This invention enables flexible voltage increase and decrease regulation in power distribution networks, has strong short-circuit withstand capability, and features a simple structure, control system, and low cost.