9 results about "Stationary model" patented technology

This invention provides an energy-aware intelligent model dynamic pruning and scheduling method and system, relating to the field of model lightweighting technology. By introducing an energy-aware dynamic pruning mechanism, a real-time scheduling strategy, and a closed-loop feedback structure, this invention achieves dynamic optimization of energy consumption, accuracy, and latency during deep learning model inference, offering significant advantages over existing static pruning or fixed model inference schemes. The dynamic pruning decision mechanism of this invention can perform fine-grained structural adjustments based on the real-time energy budget during inference. Its runtime control overhead is far lower than traditional dynamic networks, and it does not significantly increase inference time. The extremely low runtime overhead allows it to operate stably in ultra-low-power scenarios such as wearable devices, IoT nodes, and energy harvesting equipment.

A multifunctional electromagnetic deployment device and method for wind tunnel model deployment tests belongs to the field of dynamic testing technology for model wind tunnels. It solves the problems of slow deployment speed and poor repeatability in existing technologies. Key technical points: The top surface of the bracket is fixedly connected to the test model. Two openings are made at the bottom of the bracket, each containing an electromagnet. Two electromagnet cover plates are installed at the bottom of the bracket corresponding to the two electromagnets. A limiter track is provided between the two openings. The model head section, front magnetic section, middle section, rear magnetic section, and tail section are sequentially spliced ​​and fixed. Mounting grooves are provided on both the front and rear magnetic sections. A neodymium magnet with a countersunk hole is placed in the mounting groove closest to the bracket at the top. This invention realizes the connection of the test model before separation, free deployment of the deployed object, and deployment of the object with initial velocity, ensuring close contact between the deployed objects and simulating the real separation process.

The application discloses a civil aviation tractor-oriented adaptive model predictive control method and system based on fusion perception, and belongs to the technical field of automatic driving and vehicle motion control. The application identifies load parameters such as the number, mass and geometric size of a baggage compartment through fusion perception of a vehicle-mounted laser radar and a visual sensor, dynamically constructs an adaptive variable-structure multi-body dynamics model, adaptively adjusts the weight and constraint boundary of a model predictive controller based on the real-time model, solves an optimal control sequence by rolling and executes the optimal control sequence through a drive-by-wire chassis, and simultaneously realizes safety monitoring through closed-loop feedback of a vehicle motion state. The application can adapt to 1-10 baggage compartment dynamic load working conditions, solves problems such as mismatch of a traditional fixed model, low trajectory tracking precision, high risk of folding and collision and the like, realizes high-precision trajectory tracking and all-condition safety control, adapts to a civil aviation apron operation scene, and has high safety, strong adaptability and good engineering landing value.

This application discloses a non-contact model motion simulation display stand for model display, comprising a frame body, a conveyor belt device, and a magnetic fixing device. The conveyor belt device is mounted on the frame body; the magnetic fixing device is also mounted on the frame body, spaced apart from the model, and is used to fix the relative position between the model and the magnetic fixing device. During use, after the model car is placed on the conveyor belt device, the magnetic fixing device positions the model car in a preset display position using non-contact magnetic attraction. When the conveyor belt device is activated, the model car remains in place under the action of the magnetic fixing device, while its wheels rotate due to friction with the conveyor belt device, thus simulating the dynamic movement of the model car on a real road surface.

This invention relates to a model buffer and capture device for land-based vertical catapult tests. The device, used to capture a model, includes a damping system and a capture system. The damping system absorbs energy and buffers during the capture process. The capture system, mounted on the damping system, includes a capture support with a buffer net at its top and a gripper system below the net for clamping and securing the model. A photoelectric proximity switch is also mounted on the capture support; when the switch detects an object passing through, it sends an electrical signal to control the gripper system. A launch tube, vertically positioned below the capture system, launches the model. This invention enables capture in vertical land-based catapult tests, allowing for safe, damage-free, and efficient model recovery after launch, thus improving test efficiency. The buffer system significantly reduces the load on the grippers during model capture, enhancing the overall system reliability.

A multifunctional electromagnetic launching device and method for wind tunnel model launching test belong to the technical field of model wind tunnel dynamic test. The problems of slow launching speed and poor repeatability in the prior art are solved. The technical points are as follows: the top surface of the hanger is fixedly connected with the test model, two orifices are opened at the bottom of the hanger, two electromagnets are installed in the two orifices, two electromagnet covers are installed at the bottom of the hanger corresponding to the two electromagnets, and a limit stop rail is arranged between the two orifices; a model head section, a model front magnetic section, a model middle section, a model rear magnetic section and a model tail section are sequentially spliced and fixed, installation grooves are arranged on the model front magnetic section and the model rear magnetic section, and a neodymium magnet with a counterbore is placed in the installation groove closest to the hanger at the top. The connection of the separated test model, the free launching of the launched object and the launching of the launched object with an initial speed are realized, the close contact between the launched objects is ensured, and the real separation process is simulated.

This invention discloses an experimental device for the thermo-mechanical coupling effect of shield tunneling in an artificially frozen environment. The device includes a soil box, a model shield machine, a support device, and a laser displacement sensor. The soil box has a model shield machine inlet and an outlet on its front and rear sides, respectively. A cold compensation array is installed inside the soil box, and a temperature sensor array is arranged inside the cold compensation array along the tunneling direction. The support device supports and fixes the model shield machine. A laser displacement sensor is installed at the tail of the model shield machine. This device aims to reveal the influence mechanism of localized ground weakening induced by non-uniform thermal disturbance on the shield machine's attitude, to deeply explore the spatiotemporal evolution of the eccentric load moment and the ground response characteristics under complex thermo-mechanical coupling conditions, and thus analyze the imbalance causes under thermo-mechanical coupling, providing reliable experimental basis and data support for attitude prediction and disaster prevention in shield tunneling in artificially frozen strata.

The invention specifically relates to an automobile spraying practical training platform, and belongs to the technical field of spraying teaching equipment. The automobile spraying practical training platform comprises a seat body, a fixing assembly and a simulation assembly. The fixing assembly is used for fixing a model part, the simulation assembly and the fixing assembly are oppositely arranged in the first direction, the simulation assembly comprises a moving seat, two reels and a water-encountering color developing film, the moving seat is movably connected to the seat body in the first direction, the two reels are rotationally connected to the moving seat, and the two reels are arranged at intervals in the second direction; the second direction is perpendicular to the first direction, and the two ends of the water color developing film are wound around the two reels respectively. By spraying water to the water-encountering color developing film to simulate the paint spraying process, on one hand, the water-encountering color developing film can be reused after being dried, and the training cost is reduced; and on the other hand, the water is a harmless material, so that the risk of harming the body of the trainee is reduced.

The invention provides a slurry circulation control method and system based on multi-target control, and relates to the technical field of slurry circulation control. According to the technical scheme provided by the invention, the constraint boundary and the weight coefficient of the model are modified in real time according to working condition changes. When the load of the unit fluctuates severely or the sulfur content of the coal is suddenly changed, the model structure is reconstructed, the generated multi-target fitness function accurately adapts to the optimization requirement of the suddenly changed working condition, and the Pareto leading-edge solution set obtained through iterative optimization fully reflects the optimal tradeoff relation under the current transient characteristics. After the robust optimal solution screened from the solution set is analyzed into the control instruction, the circulating pump combination and rotating speed adjustment of the slurry circulating system can accurately respond to sudden change of the working condition, control failure of a traditional fixed model under the sudden change working condition is avoided, and therefore the control effect of the desulfurization system under the complex dynamic working condition is remarkably improved.