21results about How to "Improve coverage efficiency" patented technology

This invention discloses an intelligent UAV patrol decision-making method based on image recognition and semantic analysis after a typhoon disaster. The method includes: acquiring multi-source post-typhoon data and preprocessing it to form multi-modal post-disaster basic data; performing semantic analysis on disaster reporting and repair text data to extract typhoon characteristic information, affected equipment information, and prone-to-fault information to generate prior disaster information; fusing and analyzing the prior disaster information with equipment operation data to determine the suspected damage status of each piece of equipment or section to be inspected and key inspection targets; generating UAV patrol routes by combining equipment ledger data, meteorological data, and UAV operation constraints; controlling the UAV to collect target images and performing image enhancement and image recognition to obtain equipment damage identification results; generating post-disaster patrol decision results based on the identification results and transmitting them back to the repair command platform. This invention can improve the accuracy of post-disaster patrol target selection, the robustness of image recognition, and the efficiency of repair resource allocation.

The application provides a carbon dioxide rapid cooling fire extinguishing device, and relates to the technical field of fire extinguishing equipment. The carbon dioxide rapid cooling fire extinguishing device comprises a high-pressure liquid storage tank and a hand control valve, the high-pressure liquid storage tank is internally stored with high-pressure liquid carbon dioxide, the top of the high-pressure liquid storage tank is provided with a tank body interface, the hand control valve is installed at the tank body interface, the outlet end of the hand control valve is connected with a double-flow channel valve seat, and the double-flow channel valve seat is internally provided with a main jet flow channel and an auxiliary flow channel which are independent of each other. In the application, the fluid is divided by the double-flow channel valve seat, the main flow channel is two-stage adiabatic expansion through a cyclone expansion pressure reducer to generate a large amount of dry ice microcrystal to realize rapid cooling, the auxiliary flow channel retains high-pressure gas and accelerates the dry ice microcrystal in the mixed-flow lance, so that the jet flow obtains higher kinetic energy to penetrate the fire plume, and the covering efficiency and the cooling and fire extinguishing performance of the fire extinguishing agent are significantly improved.

This invention discloses a data-driven method for monitoring marine phytoplankton abundance using underwater acoustic networks. The method includes: constructing and training a multi-level spatiotemporal feature ensemble model based on historical marine phytoplankton abundance and corresponding marine environmental data to determine the optimal spatial location and monitoring time window of the underwater acoustic network nodes; constructing a teacher model for channel prediction, including a multi-layer cascaded structure and residual modules, and compressing the teacher model into a student model using spatiotemporal knowledge distillation; training the student model to achieve real-time channel state prediction at the underwater acoustic network nodes; matching suitable underwater acoustic communication devices and seasonal optimal routing strategies to each underwater acoustic network node based on the optimal spatial location and real-time predicted channel state, and performing adaptive modulation and coding at the link level, while simultaneously monitoring phytoplankton abundance using the underwater acoustic network. This invention can improve data throughput and prediction accuracy under strict energy consumption constraints.

This utility model discloses an electric heating forced-air drying oven, relating to the technical field of drying ovens. The electric heating forced-air drying oven includes an outer shell and a controller on one side. An exhaust port is provided at the upper end of the outer shell, and cavities are provided on both sides of the outer shell. Mounting holes are provided on the side walls of the cavities, and an air outlet plate (first and second) is rotatably mounted in each of the two mounting holes. The first and second air outlet plates are connected by an air duct, and the air inlet of the air duct is connected to the air outlet of a heating pipe. The air inlet of the heating pipe is connected to the air outlet of a blower. This utility model, through the rotating air outlet plates and the staggered air outlet design, achieves uniform airflow distribution inside the drying oven, effectively improving temperature consistency and drying efficiency.

The application discloses a multi-robot cooperative exploration method based on a real-time environment skeleton graph and related equipment, and the method comprises the following steps: each robot acquires sensing data of itself, constructs a grid map according to the sensing data, performs binary processing on the grid map to obtain a binary map, a server constructs a global binary environment map based on the binary maps uploaded by all the robots, extracts an environment skeleton graph based on the global binary environment map, performs structural optimization on the environment skeleton graph to obtain an optimized environment skeleton graph, and sends the optimized environment skeleton graph to each robot; each robot performs state detection based on the optimized environment skeleton graph, and if the robot falls into a skeleton dead end or is stuck, the robot starts an escape strategy; each robot performs path planning and outputs an optimal exploration target and a path; and each robot executes a next exploration action according to the optimal exploration target and the path until the exploration task is completed.

The application discloses a concrete solid brick embryo curing device, which comprises a curing chamber, two groups of parallel tracks are laid on the bottom of the curing chamber, a brick embryo vehicle is arranged above the tracks, a screw rod frame is fixed to the middle of the top end of the curing chamber, a servo motor is mounted to the left side of the screw rod frame, a linear screw rod is fixedly connected with the output shaft of the servo motor, a threaded seat is screwed to the outside of the linear screw rod, the bottom end of the threaded seat penetrates through the screw rod frame and is fixedly connected with a connecting frame, two groups of sliding sleeves are fixedly connected to the bottom end of the connecting frame, and clamps are fixed to one side of the sliding sleeves. The servo motor, the linear screw rod, the threaded seat, the connecting frame, the sliding sleeve, the clamp and the straw mat are arranged, so that the straw mat can be automatically unfolded or folded, the surface water of the brick embryo can be effectively locked, the wet state of the brick embryo can be maintained, the cement can be fully hydrated, the strength of the brick body can be ensured, workers are not needed to climb the brick embryo vehicle to lay the straw mat, and the covering efficiency and the operation safety are improved.

The invention discloses a bidirectional man-machine behavior analysis method and system based on a meta-learning social heterogeneous multi-robot system. The method comprises the steps that environment state data, robot internal state data and man-machine interaction data are acquired; based on the acquired data, performing intention analysis by using a double-layer grid observation model, state coding and a large language model, and generating feature representation suitable for multi-agent reinforcement learning and meta-learning; learning a path planning strategy, an energy management strategy, an obstacle avoidance strategy and a bidirectional interaction strategy in a high-density dynamic obstacle and complex crowd interaction scene based on feature representation in combination with a three-stage curriculum learning method, an internal curiousness reward and a meta learning framework based on MAML; and based on a path planning strategy, an energy management strategy, an obstacle avoidance strategy and a bidirectional interaction strategy, performing man-machine interaction in various dynamic environments and responding to corresponding action instructions. According to the invention, the environment adaptability, the resource scheduling efficiency and the man-machine cooperation efficiency of the multi-robot system are improved.

This invention discloses an anti-burning foam fire extinguishing agent for lithium batteries and its preparation method, relating to the field of fire extinguishing agent technology. The anti-burning foam fire extinguishing agent for lithium batteries prepared by this invention mainly comprises a foaming agent system, a foam stabilizer, and a heat-absorbing material. The foaming agent system contains sodium perfluorocrown ether sulfonate, the foam stabilizer is modified silica, and the heat-absorbing material contains modified microcapsules. The anti-burning foam fire extinguishing agent for lithium batteries prepared by this invention exhibits good foam stability and fire extinguishing performance.

This utility model provides a device for unpacking soft water salt ton bags, including a base plate. Multiple support legs are provided on the top of the base plate. Two limiting plates are fixedly connected to the front right side of the top of the base plate. A single motor is fixedly connected to the top of the two limiting plates. A bearing is rotatably connected to the output end of the motor. A conveyor belt is rotatably connected to the outside of the bearing. Support plates are fixedly connected to the top of the multiple support legs and are internally connected to the conveyor belt. Baffles are fixedly connected to the front and rear sides of the top of the support plates. A housing is fixedly connected to the left side of the base plate. This utility model achieves efficient ton bag unpacking operations, reduces manual labor intensity, improves unpacking efficiency, reduces dust pollution, and ensures a safe working environment. Simultaneously, the dust suppression mechanism helps extend the service life of various equipment components and reduce equipment maintenance costs.

The utility model relates to a floating type river channel water body ecological purification device which comprises a plurality of fixing plates, and two clamping plates are fixedly installed on the outer wall of the rear side and the outer wall of the left side of each fixing plate. According to the floating type river channel water body ecological purification device, by arranging a connecting mechanism and a clamping plate, firstly, the clamping plate is inserted into a corresponding clamping groove of a fixed plate, then a hand wheel is rotated, a two-way threaded rod on a bearing is driven by the hand wheel to stably rotate, and then a threaded movable block, a lifting plate and a limiting guide rod are arranged, so that the floating type river channel water body ecological purification device is achieved. The two lifting plates can stably move close to each other or away from each other according to the rotating direction of the two-way threaded rod, finally, the fixing insertion bolts are arranged, when the two lifting plates move close to each other, the fixing insertion bolts on the two lifting plates can be inserted into the clamping plates, then splicing work is completed, and therefore the design is simple in structure and convenient to use. And moreover, the splicing speed is high, and the covering efficiency of the purification device can be effectively improved.

The application discloses a turbine guide vane end wall cascade channel type assembly gap structure based on a transverse pressure gradient and belongs to the field of gas turbine turbine end wall cooling. The assembly gap is a cascade channel type structure with consistent axial cross section configurations, the pressure side wall surface is similar to the blade pressure surface profile, the suction side wall surface is similar to the blade suction surface profile, and the pressure side wall surface and the suction side wall surface jointly form a flow channel capable of generating a stable transverse pressure gradient; a leakage hole is formed in the seal piece. The seal cooling gas entering the gap from the leakage hole is actively regulated by the transverse pressure gradient, so that the seal cooling gas orderly migrates from the pressure side to the suction side and flows close to the wall surface, and the adiabatic temperature distribution in the gap and the gas film coverage of the suction side wall surface are significantly improved. Meanwhile, the leakage flow and the end wall gas film hole cooling gas synergistically act, the cooling effect and uniformity of the downstream surface of the end wall are enhanced, the net heat flux reduction amount is significantly improved, the mixing loss is reduced to a certain extent, and a good balance between efficient and uniform cooling and low aerodynamic loss is achieved.

The utility model relates to the field of broadcast transmission facilities, concretely relates to an IP ceiling loudspeaker with all-optical network transmission, including shell, is provided with double optical network interface, constant voltage output terminal and power input terminal on the shell, the frame is connected in the shell bottom mouth, the base is fixed in the shell with the frame junction, the base end surface is equipped with the exciting vibrator, the circuit board subassembly is arranged in the shell inside, and the circuit board subassembly includes power and power amplifier module, signal processing system module and light transceiver and switch module. Through the ring network double link redundancy connection of optical cable, realize all-optical network communication, solved the problem that traditional network cable long distance transmission needs to increase relay equipment, and avoided the network breakage, error rate and other disadvantages caused by the traditional network cable because of the electromagnetic interference, can be used as the central node of the broadcast area, expands the connection many traditional constant voltage ceiling loudspeakers, improves the coverage efficiency of broadcast signal.

The application provides a bird repelling control system and method based on a wheel-legged robot, and relates to the technical field of robots.The system comprises a data acquisition module, which synchronously acquires visual images, multi-channel acoustic audio, terrain point clouds and body poses; a risk assessment module, which performs small target detection and voiceprint recognition to generate bird confidence and target position, fuses to obtain a total score of bird damage risk, and supplements the risk target space coordinates by using sound source direction verification; a repelling decision module, which optimizes a hierarchical repelling strategy based on a comprehensive utility value, and generates a task instruction containing a repelling mode, intensity and area; and an execution control module, which adaptively switches wheel running, wheel-leg hybrid or walking obstacle-crossing modes according to the terrain passability, cooperatively generates a gimbal pointing direction, a sound-light-laser driving instruction and a chassis motion instruction, and approaches the risk target to perform hierarchical repelling.The application solves the problems of poor passability on complex agricultural terrain, easy adaptation of single repelling, insufficient safety supervision and the like.

The invention discloses a ceramsite concrete block pouring device, which relates to the technical field of building material production, and comprises a base and a pouring mechanism, the upper end of the base is symmetrically and fixedly connected with two electric sliding rails, and the side walls of the two electric sliding rails are jointly and slidably connected with a portal frame. The pouring mechanism comprises a distribution pipe fixedly connected to the upper end of the portal frame, the lower end of the distribution pipe penetrates through the top in the portal frame and is fixedly connected with a pouring head, a plurality of pouring openings are formed in the bottom in the pouring head, the inner wall of each pouring opening is rotationally connected with a valve plate through a pin shaft, and the other end of each valve plate is rotationally connected with a flow guide plate through a pin shaft. The lower end of the pouring head is fixedly connected with multiple vertical frames. According to the invention, by dispersing multi-strand instantaneous material distribution, a traditional centralized accumulation material distribution mode is changed, so that the aggregate distribution in the formed building block is extremely uniform and has no density gradient, and the consistency of mechanical properties and the stability of thermal insulation performance of a product are improved.

The utility model discloses an industrial cleaning nozzle for efficiently and conveniently cleaning blockages, and relates to the technical field of cleaning nozzles, the industrial cleaning nozzle for efficiently and conveniently cleaning blockages comprises a connecting end, the inner wall of the connecting end is provided with a connecting cavity for connecting a water source, and the inner wall of the connecting cavity is sleeved with a functional pipe; a spraying assembly is arranged on the inner wall of the functional pipe, the spraying assembly comprises a middle cavity, the middle cavity is formed in the inner wall of the functional pipe, the inner wall of the functional pipe is further provided with a middle cavity, and the inner wall of the functional pipe is provided with a rotary nozzle used for rotary matched cleaning; a direct injection hole used for direct injection is formed in the outer portion of the rotating nozzle, and a middle pipe used for providing a rotating function and central injection flow guiding is installed on the inner wall of the rotating nozzle. By means of the combined design of the rotary nozzles and the direct spraying holes, annular rotary spraying is achieved, and the coverage area and efficiency of cleaning are greatly improved.

This utility model relates to the field of dustproof covers for air-conditioned compartments, specifically a dustproof cover for the air outlet of a grain depot's air-conditioned compartment. It includes a connecting pipe with a cover mechanism on its surface. The connecting pipe is fixedly connected to the air outlet of the air-conditioned compartment, improving air exchange efficiency. Two sets of flaps are connected to the mounting components via a connecting shaft, and the flaps can rotate relative to each other along the mounting components via bearings, thus diverting the airflow and improving airflow coverage efficiency. The cover mechanism is quickly fitted and connected to the connecting pipe via the mounting components. A limiting frame restricts the installation position of the mounting components, ensuring convenient disassembly and assembly of the cover mechanism. This solves the problems of cumbersome disassembly and assembly methods and inconvenience for automatic opening and closing in most traditional cover methods. Traditional covers often use screw fastening or clip nesting, requiring special tools for individual disassembly, resulting in long single-operation times.

This application relates to the field of robotics technology, disclosing a method, apparatus, device, and medium for full-area coverage based on topology. The method includes: acquiring a first cleaning area and controlling a robot vacuum to complete coverage within that first cleaning area; after the first cleaning area is covered, acquiring information about the area to be cleaned corresponding to that first cleaning area; acquiring the next cleaning area based on the current position of the robot vacuum and the information about the area to be cleaned; progressively constructing a topological relationship structure according to the sequential relationship between the cleaning areas; and determining the cleaning order of the cleaning areas based on the topological relationship structure, and controlling the robot vacuum to complete full-area coverage cleaning, so that the robot can efficiently and effectively complete full-area cleaning, significantly improving coverage efficiency and cleaning efficiency. This application provides a topology-based full-area coverage method for robot vacuums, capable of efficiently covering the entire house area and significantly improving coverage efficiency.

This invention discloses a real-time foreign exchange risk quantification method based on multi-model fusion optimization. The method includes: acquiring raw foreign exchange data and preprocessing it to generate a standardized feature dataset; based on the standardized feature dataset, controlling a Markov chain model and a VAR model to perform independent parallel computations to obtain the initial exchange rate state probability distribution and the initial value at risk quantification result, respectively; acquiring sudden market event data, and performing Bayesian dynamic probability correction on the initial exchange rate state probability distribution and the initial value at risk quantification result to obtain the corrected prediction result. The beneficial effects are: through Kubernetes resource isolation and Apache Spark parallel scheduling, the Markov chain and VAR model can operate independently and in parallel, reducing the time taken for traditional serial computation from ≥15 minutes to ≤2 minutes, improving computational efficiency by 87%; the Markowitz effective front solution time is shortened from 3 minutes to less than 500ms.

The present application relates to the technical field of intelligent earthquake rescue, in particular to a method and system for earthquake search and rescue robot joint search and rescue based on swarm intelligence, which comprises: constructing a distributed communication network and a role dynamic allocation mechanism of the earthquake search and rescue robot cluster; using an improved particle swarm optimization algorithm to realize global path planning and regional collaborative coverage of the cluster; completing life signal and dangerous area identification through multi-robot heterogeneous sensing data fusion; sharing search and rescue information and decision-making collaboration based on group consensus mechanism; introducing a feedback regulation mechanism to dynamically optimize the cluster search and rescue strategy. Compared with the technical problems of low single machine operation efficiency, limited coverage range and serious information island in the prior art, the present application realizes the collaborative closed loop of the earthquake search and rescue robot cluster through swarm intelligence, and improves the search and rescue efficiency, coverage integrity and target recognition accuracy in the earthquake debris environment.

The invention discloses an accelerated satellite searching method based on elliptical coverage and a satellite communication terminal, and relates to the field of satellite communication. The method comprises the following steps: determining an uncertain area of a satellite position based on satellite almanac data, wherein a first size of the area in an orbit direction is greater than a second size in a vertical orbit direction; determining that a first coverage width of a single search beam in an orbit direction is greater than a second coverage width in a vertical orbit direction based on a relative geometrical relationship between the terminal and a satellite and the beam width, and forming an elliptical coverage shape; according to the first size, the second size, the first coverage width and the second coverage width, the number and layout of wave positions needed for covering the uncertain area are determined; and sequentially searching satellite signals according to the number of the wave positions and the layout. According to the method, the directivity characteristics of almanac errors are utilized, the elliptical beams are adopted to replace traditional circular beams, the beam shape is matched with error distribution, the number of needed beam positions is remarkably reduced, the satellite searching time is effectively shortened, and the response speed of the terminal is improved.

The utility model relates to the technical field of shower nozzle, and disclose a degradable liquid mulch liquid spraying shower nozzle, including threaded connection pipe and fixedly connected on the threaded connection pipe shell, threaded connection pipe sets up at the circumference side of shell, threaded connection pipe is linked together with shell, be provided with the spoiler assembly in the shell, the below of spoiler assembly is provided with rotating assembly, and the spoiler assembly includes rotating lever, and the rotating lever sets up in the shell, and the top of rotating lever is connected with the inside top surface rotation of shell, and the circumference side of rotating lever is provided with a plurality of rotating leaves that are arranged in annular array, and the rotating leaf is fixedly connected with the circumference side of rotating lever, the utility model discloses through setting spoiler assembly, makes rotating leaf when rotating will drive rotating lever to rotate to drive the scraping leaf to rotate, can be to mulch liquid turbulence and avoid mulch liquid deposition, and still make the scraping leaf to the particle that adheres in the inverted conical connecting barrel is scraped, avoid the connection of inverted conical connecting barrel and conical sleeve to be blocked, influence mulch spraying effect.